1/* $NetBSD: mii_physubr.c,v 1.5 1999/08/03 19:41:49 drochner Exp $ */
2
3/*-
4 * Copyright (c) 1998, 1999, 2000, 2001 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
9 * NASA Ames Research Center.
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 *
20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 * POSSIBILITY OF SUCH DAMAGE.
31 */
32
33#include <sys/cdefs.h>
| 1/* $NetBSD: mii_physubr.c,v 1.5 1999/08/03 19:41:49 drochner Exp $ */
2
3/*-
4 * Copyright (c) 1998, 1999, 2000, 2001 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
9 * NASA Ames Research Center.
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 *
20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 * POSSIBILITY OF SUCH DAMAGE.
31 */
32
33#include <sys/cdefs.h>
|
34__FBSDID("$FreeBSD: head/sys/dev/mii/mii_physubr.c 220938 2011-04-22 09:22:27Z marius $");
| 34__FBSDID("$FreeBSD: head/sys/dev/mii/mii_physubr.c 221407 2011-05-03 19:51:29Z marius $");
|
35
36/*
37 * Subroutines common to all PHYs.
38 */
39
40#include <sys/param.h>
41#include <sys/systm.h>
42#include <sys/kernel.h>
43#include <sys/socket.h>
44#include <sys/errno.h>
45#include <sys/module.h>
46#include <sys/bus.h>
47
48#include <net/if.h>
49#include <net/if_media.h>
50
51#include <dev/mii/mii.h>
52#include <dev/mii/miivar.h>
53
54#include "miibus_if.h"
55
56/*
57 * Media to register setting conversion table. Order matters.
58 */
59static const struct mii_media mii_media_table[MII_NMEDIA] = {
60 /* None */
61 { BMCR_ISO, ANAR_CSMA,
62 0, },
63
64 /* 10baseT */
65 { BMCR_S10, ANAR_CSMA|ANAR_10,
66 0, },
67
68 /* 10baseT-FDX */
69 { BMCR_S10|BMCR_FDX, ANAR_CSMA|ANAR_10_FD,
70 0, },
71
72 /* 100baseT4 */
73 { BMCR_S100, ANAR_CSMA|ANAR_T4,
74 0, },
75
76 /* 100baseTX */
77 { BMCR_S100, ANAR_CSMA|ANAR_TX,
78 0, },
79
80 /* 100baseTX-FDX */
81 { BMCR_S100|BMCR_FDX, ANAR_CSMA|ANAR_TX_FD,
82 0, },
83
84 /* 1000baseX */
85 { BMCR_S1000, ANAR_CSMA,
86 0, },
87
88 /* 1000baseX-FDX */
89 { BMCR_S1000|BMCR_FDX, ANAR_CSMA,
90 0, },
91
92 /* 1000baseT */
93 { BMCR_S1000, ANAR_CSMA,
94 GTCR_ADV_1000THDX },
95
96 /* 1000baseT-FDX */
97 { BMCR_S1000, ANAR_CSMA,
98 GTCR_ADV_1000TFDX },
99};
100
101void
102mii_phy_setmedia(struct mii_softc *sc)
103{
104 struct mii_data *mii = sc->mii_pdata;
105 struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
106 int bmcr, anar, gtcr;
107
108 if (IFM_SUBTYPE(ife->ifm_media) == IFM_AUTO) {
109 /*
110 * Force renegotiation if MIIF_DOPAUSE or MIIF_FORCEANEG.
111 * The former is necessary as we might switch from flow-
112 * control advertisement being off to on or vice versa.
113 */
114 if ((PHY_READ(sc, MII_BMCR) & BMCR_AUTOEN) == 0 ||
115 (sc->mii_flags & (MIIF_DOPAUSE | MIIF_FORCEANEG)) != 0)
116 (void)mii_phy_auto(sc);
117 return;
118 }
119
120 /*
121 * Table index is stored in the media entry.
122 */
123
124 KASSERT(ife->ifm_data >=0 && ife->ifm_data < MII_NMEDIA,
125 ("invalid ife->ifm_data (0x%x) in mii_phy_setmedia",
126 ife->ifm_data));
127
128 anar = mii_media_table[ife->ifm_data].mm_anar;
129 bmcr = mii_media_table[ife->ifm_data].mm_bmcr;
130 gtcr = mii_media_table[ife->ifm_data].mm_gtcr;
131
132 if (IFM_SUBTYPE(ife->ifm_media) == IFM_1000_T) {
133 gtcr |= GTCR_MAN_MS;
134 if ((ife->ifm_media & IFM_ETH_MASTER) != 0)
135 gtcr |= GTCR_ADV_MS;
136 }
137
138 if ((ife->ifm_media & IFM_FDX) != 0 &&
139 ((ife->ifm_media & IFM_FLOW) != 0 ||
140 (sc->mii_flags & MIIF_FORCEPAUSE) != 0)) {
141 if ((sc->mii_flags & MIIF_IS_1000X) != 0)
142 anar |= ANAR_X_PAUSE_TOWARDS;
143 else {
144 anar |= ANAR_FC;
145 /* XXX Only 1000BASE-T has PAUSE_ASYM? */
146 if ((sc->mii_flags & MIIF_HAVE_GTCR) != 0 &&
147 (sc->mii_extcapabilities &
148 (EXTSR_1000THDX | EXTSR_1000TFDX)) != 0)
149 anar |= ANAR_X_PAUSE_ASYM;
150 }
151 }
152
| 35
36/*
37 * Subroutines common to all PHYs.
38 */
39
40#include <sys/param.h>
41#include <sys/systm.h>
42#include <sys/kernel.h>
43#include <sys/socket.h>
44#include <sys/errno.h>
45#include <sys/module.h>
46#include <sys/bus.h>
47
48#include <net/if.h>
49#include <net/if_media.h>
50
51#include <dev/mii/mii.h>
52#include <dev/mii/miivar.h>
53
54#include "miibus_if.h"
55
56/*
57 * Media to register setting conversion table. Order matters.
58 */
59static const struct mii_media mii_media_table[MII_NMEDIA] = {
60 /* None */
61 { BMCR_ISO, ANAR_CSMA,
62 0, },
63
64 /* 10baseT */
65 { BMCR_S10, ANAR_CSMA|ANAR_10,
66 0, },
67
68 /* 10baseT-FDX */
69 { BMCR_S10|BMCR_FDX, ANAR_CSMA|ANAR_10_FD,
70 0, },
71
72 /* 100baseT4 */
73 { BMCR_S100, ANAR_CSMA|ANAR_T4,
74 0, },
75
76 /* 100baseTX */
77 { BMCR_S100, ANAR_CSMA|ANAR_TX,
78 0, },
79
80 /* 100baseTX-FDX */
81 { BMCR_S100|BMCR_FDX, ANAR_CSMA|ANAR_TX_FD,
82 0, },
83
84 /* 1000baseX */
85 { BMCR_S1000, ANAR_CSMA,
86 0, },
87
88 /* 1000baseX-FDX */
89 { BMCR_S1000|BMCR_FDX, ANAR_CSMA,
90 0, },
91
92 /* 1000baseT */
93 { BMCR_S1000, ANAR_CSMA,
94 GTCR_ADV_1000THDX },
95
96 /* 1000baseT-FDX */
97 { BMCR_S1000, ANAR_CSMA,
98 GTCR_ADV_1000TFDX },
99};
100
101void
102mii_phy_setmedia(struct mii_softc *sc)
103{
104 struct mii_data *mii = sc->mii_pdata;
105 struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
106 int bmcr, anar, gtcr;
107
108 if (IFM_SUBTYPE(ife->ifm_media) == IFM_AUTO) {
109 /*
110 * Force renegotiation if MIIF_DOPAUSE or MIIF_FORCEANEG.
111 * The former is necessary as we might switch from flow-
112 * control advertisement being off to on or vice versa.
113 */
114 if ((PHY_READ(sc, MII_BMCR) & BMCR_AUTOEN) == 0 ||
115 (sc->mii_flags & (MIIF_DOPAUSE | MIIF_FORCEANEG)) != 0)
116 (void)mii_phy_auto(sc);
117 return;
118 }
119
120 /*
121 * Table index is stored in the media entry.
122 */
123
124 KASSERT(ife->ifm_data >=0 && ife->ifm_data < MII_NMEDIA,
125 ("invalid ife->ifm_data (0x%x) in mii_phy_setmedia",
126 ife->ifm_data));
127
128 anar = mii_media_table[ife->ifm_data].mm_anar;
129 bmcr = mii_media_table[ife->ifm_data].mm_bmcr;
130 gtcr = mii_media_table[ife->ifm_data].mm_gtcr;
131
132 if (IFM_SUBTYPE(ife->ifm_media) == IFM_1000_T) {
133 gtcr |= GTCR_MAN_MS;
134 if ((ife->ifm_media & IFM_ETH_MASTER) != 0)
135 gtcr |= GTCR_ADV_MS;
136 }
137
138 if ((ife->ifm_media & IFM_FDX) != 0 &&
139 ((ife->ifm_media & IFM_FLOW) != 0 ||
140 (sc->mii_flags & MIIF_FORCEPAUSE) != 0)) {
141 if ((sc->mii_flags & MIIF_IS_1000X) != 0)
142 anar |= ANAR_X_PAUSE_TOWARDS;
143 else {
144 anar |= ANAR_FC;
145 /* XXX Only 1000BASE-T has PAUSE_ASYM? */
146 if ((sc->mii_flags & MIIF_HAVE_GTCR) != 0 &&
147 (sc->mii_extcapabilities &
148 (EXTSR_1000THDX | EXTSR_1000TFDX)) != 0)
149 anar |= ANAR_X_PAUSE_ASYM;
150 }
151 }
152
|
153 if ((ife->ifm_media & IFM_LOOP) != 0)
154 bmcr |= BMCR_LOOP;
155
| |
156 PHY_WRITE(sc, MII_ANAR, anar);
157 PHY_WRITE(sc, MII_BMCR, bmcr);
158 if ((sc->mii_flags & MIIF_HAVE_GTCR) != 0)
159 PHY_WRITE(sc, MII_100T2CR, gtcr);
160}
161
162int
163mii_phy_auto(struct mii_softc *sc)
164{
165 struct ifmedia_entry *ife = sc->mii_pdata->mii_media.ifm_cur;
166 int anar, gtcr;
167
168 /*
169 * Check for 1000BASE-X. Autonegotiation is a bit
170 * different on such devices.
171 */
172 if ((sc->mii_flags & MIIF_IS_1000X) != 0) {
173 anar = 0;
174 if ((sc->mii_extcapabilities & EXTSR_1000XFDX) != 0)
175 anar |= ANAR_X_FD;
176 if ((sc->mii_extcapabilities & EXTSR_1000XHDX) != 0)
177 anar |= ANAR_X_HD;
178
179 if ((ife->ifm_media & IFM_FLOW) != 0 ||
180 (sc->mii_flags & MIIF_FORCEPAUSE) != 0)
181 anar |= ANAR_X_PAUSE_TOWARDS;
182 PHY_WRITE(sc, MII_ANAR, anar);
183 } else {
184 anar = BMSR_MEDIA_TO_ANAR(sc->mii_capabilities) |
185 ANAR_CSMA;
186 if ((ife->ifm_media & IFM_FLOW) != 0 ||
187 (sc->mii_flags & MIIF_FORCEPAUSE) != 0) {
188 if ((sc->mii_capabilities &
189 (BMSR_10TFDX | BMSR_100TXFDX)) != 0)
190 anar |= ANAR_FC;
191 /* XXX Only 1000BASE-T has PAUSE_ASYM? */
192 if (((sc->mii_flags & MIIF_HAVE_GTCR) != 0) &&
193 (sc->mii_extcapabilities &
194 (EXTSR_1000THDX | EXTSR_1000TFDX)) != 0)
195 anar |= ANAR_X_PAUSE_ASYM;
196 }
197 PHY_WRITE(sc, MII_ANAR, anar);
198 if ((sc->mii_flags & MIIF_HAVE_GTCR) != 0) {
199 gtcr = 0;
200 if ((sc->mii_extcapabilities & EXTSR_1000TFDX) != 0)
201 gtcr |= GTCR_ADV_1000TFDX;
202 if ((sc->mii_extcapabilities & EXTSR_1000THDX) != 0)
203 gtcr |= GTCR_ADV_1000THDX;
204 PHY_WRITE(sc, MII_100T2CR, gtcr);
205 }
206 }
207 PHY_WRITE(sc, MII_BMCR, BMCR_AUTOEN | BMCR_STARTNEG);
208 return (EJUSTRETURN);
209}
210
211int
212mii_phy_tick(struct mii_softc *sc)
213{
214 struct ifmedia_entry *ife = sc->mii_pdata->mii_media.ifm_cur;
215 struct ifnet *ifp = sc->mii_pdata->mii_ifp;
216 int reg;
217
218 /* Just bail now if the interface is down. */
219 if ((ifp->if_flags & IFF_UP) == 0)
220 return (EJUSTRETURN);
221
222 /*
223 * If we're not doing autonegotiation, we don't need to do
224 * any extra work here. However, we need to check the link
225 * status so we can generate an announcement if the status
226 * changes.
227 */
228 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) {
229 sc->mii_ticks = 0; /* reset autonegotiation timer. */
230 return (0);
231 }
232
233 /* Read the status register twice; BMSR_LINK is latch-low. */
234 reg = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR);
235 if ((reg & BMSR_LINK) != 0) {
236 sc->mii_ticks = 0; /* reset autonegotiation timer. */
237 /* See above. */
238 return (0);
239 }
240
241 /* Announce link loss right after it happens */
242 if (sc->mii_ticks++ == 0)
243 return (0);
244
245 /* XXX: use default value if phy driver did not set mii_anegticks */
246 if (sc->mii_anegticks == 0)
247 sc->mii_anegticks = MII_ANEGTICKS_GIGE;
248
249 /* Only retry autonegotiation every mii_anegticks ticks. */
250 if (sc->mii_ticks <= sc->mii_anegticks)
251 return (EJUSTRETURN);
252
253 sc->mii_ticks = 0;
| 153 PHY_WRITE(sc, MII_ANAR, anar);
154 PHY_WRITE(sc, MII_BMCR, bmcr);
155 if ((sc->mii_flags & MIIF_HAVE_GTCR) != 0)
156 PHY_WRITE(sc, MII_100T2CR, gtcr);
157}
158
159int
160mii_phy_auto(struct mii_softc *sc)
161{
162 struct ifmedia_entry *ife = sc->mii_pdata->mii_media.ifm_cur;
163 int anar, gtcr;
164
165 /*
166 * Check for 1000BASE-X. Autonegotiation is a bit
167 * different on such devices.
168 */
169 if ((sc->mii_flags & MIIF_IS_1000X) != 0) {
170 anar = 0;
171 if ((sc->mii_extcapabilities & EXTSR_1000XFDX) != 0)
172 anar |= ANAR_X_FD;
173 if ((sc->mii_extcapabilities & EXTSR_1000XHDX) != 0)
174 anar |= ANAR_X_HD;
175
176 if ((ife->ifm_media & IFM_FLOW) != 0 ||
177 (sc->mii_flags & MIIF_FORCEPAUSE) != 0)
178 anar |= ANAR_X_PAUSE_TOWARDS;
179 PHY_WRITE(sc, MII_ANAR, anar);
180 } else {
181 anar = BMSR_MEDIA_TO_ANAR(sc->mii_capabilities) |
182 ANAR_CSMA;
183 if ((ife->ifm_media & IFM_FLOW) != 0 ||
184 (sc->mii_flags & MIIF_FORCEPAUSE) != 0) {
185 if ((sc->mii_capabilities &
186 (BMSR_10TFDX | BMSR_100TXFDX)) != 0)
187 anar |= ANAR_FC;
188 /* XXX Only 1000BASE-T has PAUSE_ASYM? */
189 if (((sc->mii_flags & MIIF_HAVE_GTCR) != 0) &&
190 (sc->mii_extcapabilities &
191 (EXTSR_1000THDX | EXTSR_1000TFDX)) != 0)
192 anar |= ANAR_X_PAUSE_ASYM;
193 }
194 PHY_WRITE(sc, MII_ANAR, anar);
195 if ((sc->mii_flags & MIIF_HAVE_GTCR) != 0) {
196 gtcr = 0;
197 if ((sc->mii_extcapabilities & EXTSR_1000TFDX) != 0)
198 gtcr |= GTCR_ADV_1000TFDX;
199 if ((sc->mii_extcapabilities & EXTSR_1000THDX) != 0)
200 gtcr |= GTCR_ADV_1000THDX;
201 PHY_WRITE(sc, MII_100T2CR, gtcr);
202 }
203 }
204 PHY_WRITE(sc, MII_BMCR, BMCR_AUTOEN | BMCR_STARTNEG);
205 return (EJUSTRETURN);
206}
207
208int
209mii_phy_tick(struct mii_softc *sc)
210{
211 struct ifmedia_entry *ife = sc->mii_pdata->mii_media.ifm_cur;
212 struct ifnet *ifp = sc->mii_pdata->mii_ifp;
213 int reg;
214
215 /* Just bail now if the interface is down. */
216 if ((ifp->if_flags & IFF_UP) == 0)
217 return (EJUSTRETURN);
218
219 /*
220 * If we're not doing autonegotiation, we don't need to do
221 * any extra work here. However, we need to check the link
222 * status so we can generate an announcement if the status
223 * changes.
224 */
225 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) {
226 sc->mii_ticks = 0; /* reset autonegotiation timer. */
227 return (0);
228 }
229
230 /* Read the status register twice; BMSR_LINK is latch-low. */
231 reg = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR);
232 if ((reg & BMSR_LINK) != 0) {
233 sc->mii_ticks = 0; /* reset autonegotiation timer. */
234 /* See above. */
235 return (0);
236 }
237
238 /* Announce link loss right after it happens */
239 if (sc->mii_ticks++ == 0)
240 return (0);
241
242 /* XXX: use default value if phy driver did not set mii_anegticks */
243 if (sc->mii_anegticks == 0)
244 sc->mii_anegticks = MII_ANEGTICKS_GIGE;
245
246 /* Only retry autonegotiation every mii_anegticks ticks. */
247 if (sc->mii_ticks <= sc->mii_anegticks)
248 return (EJUSTRETURN);
249
250 sc->mii_ticks = 0;
|
254 mii_phy_reset(sc);
| 251 PHY_RESET(sc);
|
255 mii_phy_auto(sc);
256 return (0);
257}
258
259void
260mii_phy_reset(struct mii_softc *sc)
261{
262 struct ifmedia_entry *ife = sc->mii_pdata->mii_media.ifm_cur;
263 int reg, i;
264
265 if ((sc->mii_flags & MIIF_NOISOLATE) != 0)
266 reg = BMCR_RESET;
267 else
268 reg = BMCR_RESET | BMCR_ISO;
269 PHY_WRITE(sc, MII_BMCR, reg);
270
271 /* Wait 100ms for it to complete. */
272 for (i = 0; i < 100; i++) {
273 reg = PHY_READ(sc, MII_BMCR);
274 if ((reg & BMCR_RESET) == 0)
275 break;
276 DELAY(1000);
277 }
278
279 if ((sc->mii_flags & MIIF_NOISOLATE) == 0) {
280 if ((ife == NULL && sc->mii_inst != 0) ||
281 (ife != NULL && IFM_INST(ife->ifm_media) != sc->mii_inst))
282 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO);
283 }
284}
285
286void
287mii_phy_down(struct mii_softc *sc)
288{
289
290}
291
292void
293mii_phy_update(struct mii_softc *sc, int cmd)
294{
295 struct mii_data *mii = sc->mii_pdata;
296
297 if (sc->mii_media_active != mii->mii_media_active ||
298 cmd == MII_MEDIACHG) {
299 MIIBUS_STATCHG(sc->mii_dev);
300 sc->mii_media_active = mii->mii_media_active;
301 }
302 if (sc->mii_media_status != mii->mii_media_status) {
303 MIIBUS_LINKCHG(sc->mii_dev);
304 sc->mii_media_status = mii->mii_media_status;
305 }
306}
307
308/*
309 * Initialize generic PHY media based on BMSR, called when a PHY is
310 * attached. We expect to be set up to print a comma-separated list
311 * of media names. Does not print a newline.
312 */
313void
314mii_phy_add_media(struct mii_softc *sc)
315{
316 struct mii_data *mii = sc->mii_pdata;
317 const char *sep = "";
318 int fdx = 0;
319
320 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 &&
321 (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) {
322 printf("no media present");
323 return;
324 }
325
326 /*
327 * Set the autonegotiation timer for 10/100 media. Gigabit media is
328 * handled below.
329 */
330 sc->mii_anegticks = MII_ANEGTICKS;
331
332#define ADD(m, c) ifmedia_add(&mii->mii_media, (m), (c), NULL)
333#define PRINT(s) printf("%s%s", sep, s); sep = ", "
334
| 252 mii_phy_auto(sc);
253 return (0);
254}
255
256void
257mii_phy_reset(struct mii_softc *sc)
258{
259 struct ifmedia_entry *ife = sc->mii_pdata->mii_media.ifm_cur;
260 int reg, i;
261
262 if ((sc->mii_flags & MIIF_NOISOLATE) != 0)
263 reg = BMCR_RESET;
264 else
265 reg = BMCR_RESET | BMCR_ISO;
266 PHY_WRITE(sc, MII_BMCR, reg);
267
268 /* Wait 100ms for it to complete. */
269 for (i = 0; i < 100; i++) {
270 reg = PHY_READ(sc, MII_BMCR);
271 if ((reg & BMCR_RESET) == 0)
272 break;
273 DELAY(1000);
274 }
275
276 if ((sc->mii_flags & MIIF_NOISOLATE) == 0) {
277 if ((ife == NULL && sc->mii_inst != 0) ||
278 (ife != NULL && IFM_INST(ife->ifm_media) != sc->mii_inst))
279 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO);
280 }
281}
282
283void
284mii_phy_down(struct mii_softc *sc)
285{
286
287}
288
289void
290mii_phy_update(struct mii_softc *sc, int cmd)
291{
292 struct mii_data *mii = sc->mii_pdata;
293
294 if (sc->mii_media_active != mii->mii_media_active ||
295 cmd == MII_MEDIACHG) {
296 MIIBUS_STATCHG(sc->mii_dev);
297 sc->mii_media_active = mii->mii_media_active;
298 }
299 if (sc->mii_media_status != mii->mii_media_status) {
300 MIIBUS_LINKCHG(sc->mii_dev);
301 sc->mii_media_status = mii->mii_media_status;
302 }
303}
304
305/*
306 * Initialize generic PHY media based on BMSR, called when a PHY is
307 * attached. We expect to be set up to print a comma-separated list
308 * of media names. Does not print a newline.
309 */
310void
311mii_phy_add_media(struct mii_softc *sc)
312{
313 struct mii_data *mii = sc->mii_pdata;
314 const char *sep = "";
315 int fdx = 0;
316
317 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 &&
318 (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) {
319 printf("no media present");
320 return;
321 }
322
323 /*
324 * Set the autonegotiation timer for 10/100 media. Gigabit media is
325 * handled below.
326 */
327 sc->mii_anegticks = MII_ANEGTICKS;
328
329#define ADD(m, c) ifmedia_add(&mii->mii_media, (m), (c), NULL)
330#define PRINT(s) printf("%s%s", sep, s); sep = ", "
331
|
335 if ((sc->mii_flags & MIIF_NOISOLATE) == 0)
| 332 if ((sc->mii_flags & MIIF_NOISOLATE) == 0) {
|
336 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_NONE, 0, sc->mii_inst),
337 MII_MEDIA_NONE);
| 333 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_NONE, 0, sc->mii_inst),
334 MII_MEDIA_NONE);
|
| 335 PRINT("none");
336 }
|
338
339 /*
340 * There are different interpretations for the bits in
341 * HomePNA PHYs. And there is really only one media type
342 * that is supported.
343 */
344 if ((sc->mii_flags & MIIF_IS_HPNA) != 0) {
345 if ((sc->mii_capabilities & BMSR_10THDX) != 0) {
346 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_HPNA_1, 0,
347 sc->mii_inst), MII_MEDIA_10_T);
348 PRINT("HomePNA1");
349 }
350 return;
351 }
352
353 if ((sc->mii_capabilities & BMSR_10THDX) != 0) {
354 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_10_T, 0, sc->mii_inst),
355 MII_MEDIA_10_T);
356 PRINT("10baseT");
357 }
358 if ((sc->mii_capabilities & BMSR_10TFDX) != 0) {
359 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_10_T, IFM_FDX, sc->mii_inst),
360 MII_MEDIA_10_T_FDX);
361 PRINT("10baseT-FDX");
362 if ((sc->mii_flags & MIIF_DOPAUSE) != 0 &&
363 (sc->mii_flags & MIIF_NOMANPAUSE) == 0) {
364 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_10_T,
365 IFM_FDX | IFM_FLOW, sc->mii_inst),
366 MII_MEDIA_10_T_FDX);
367 PRINT("10baseT-FDX-flow");
368 }
369 fdx = 1;
370 }
371 if ((sc->mii_capabilities & BMSR_100TXHDX) != 0) {
372 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, 0, sc->mii_inst),
373 MII_MEDIA_100_TX);
374 PRINT("100baseTX");
375 }
376 if ((sc->mii_capabilities & BMSR_100TXFDX) != 0) {
377 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, IFM_FDX, sc->mii_inst),
378 MII_MEDIA_100_TX_FDX);
379 PRINT("100baseTX-FDX");
380 if ((sc->mii_flags & MIIF_DOPAUSE) != 0 &&
381 (sc->mii_flags & MIIF_NOMANPAUSE) == 0) {
382 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_TX,
383 IFM_FDX | IFM_FLOW, sc->mii_inst),
384 MII_MEDIA_100_TX_FDX);
385 PRINT("100baseTX-FDX-flow");
386 }
387 fdx = 1;
388 }
389 if ((sc->mii_capabilities & BMSR_100T4) != 0) {
390 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_T4, 0, sc->mii_inst),
391 MII_MEDIA_100_T4);
392 PRINT("100baseT4");
393 }
394
395 if ((sc->mii_extcapabilities & EXTSR_MEDIAMASK) != 0) {
396 /*
397 * XXX Right now only handle 1000SX and 1000TX. Need
398 * XXX to handle 1000LX and 1000CX somehow.
399 */
400 if ((sc->mii_extcapabilities & EXTSR_1000XHDX) != 0) {
401 sc->mii_anegticks = MII_ANEGTICKS_GIGE;
402 sc->mii_flags |= MIIF_IS_1000X;
403 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_SX, 0,
404 sc->mii_inst), MII_MEDIA_1000_X);
405 PRINT("1000baseSX");
406 }
407 if ((sc->mii_extcapabilities & EXTSR_1000XFDX) != 0) {
408 sc->mii_anegticks = MII_ANEGTICKS_GIGE;
409 sc->mii_flags |= MIIF_IS_1000X;
410 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_SX, IFM_FDX,
411 sc->mii_inst), MII_MEDIA_1000_X_FDX);
412 PRINT("1000baseSX-FDX");
413 if ((sc->mii_flags & MIIF_DOPAUSE) != 0 &&
414 (sc->mii_flags & MIIF_NOMANPAUSE) == 0) {
415 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_SX,
416 IFM_FDX | IFM_FLOW, sc->mii_inst),
417 MII_MEDIA_1000_X_FDX);
418 PRINT("1000baseSX-FDX-flow");
419 }
420 fdx = 1;
421 }
422
423 /*
424 * 1000baseT media needs to be able to manipulate
425 * master/slave mode.
426 *
427 * All 1000baseT PHYs have a 1000baseT control register.
428 */
429 if ((sc->mii_extcapabilities & EXTSR_1000THDX) != 0) {
430 sc->mii_anegticks = MII_ANEGTICKS_GIGE;
431 sc->mii_flags |= MIIF_HAVE_GTCR;
432 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_T, 0,
433 sc->mii_inst), MII_MEDIA_1000_T);
434 PRINT("1000baseT");
435 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_T,
436 IFM_ETH_MASTER, sc->mii_inst), MII_MEDIA_1000_T);
437 PRINT("1000baseT-master");
438 }
439 if ((sc->mii_extcapabilities & EXTSR_1000TFDX) != 0) {
440 sc->mii_anegticks = MII_ANEGTICKS_GIGE;
441 sc->mii_flags |= MIIF_HAVE_GTCR;
442 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_T, IFM_FDX,
443 sc->mii_inst), MII_MEDIA_1000_T_FDX);
444 PRINT("1000baseT-FDX");
445 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_T,
446 IFM_FDX | IFM_ETH_MASTER, sc->mii_inst),
447 MII_MEDIA_1000_T_FDX);
448 PRINT("1000baseT-FDX-master");
449 if ((sc->mii_flags & MIIF_DOPAUSE) != 0 &&
450 (sc->mii_flags & MIIF_NOMANPAUSE) == 0) {
451 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_T,
452 IFM_FDX | IFM_FLOW, sc->mii_inst),
453 MII_MEDIA_1000_T_FDX);
454 PRINT("1000baseT-FDX-flow");
455 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_T,
456 IFM_FDX | IFM_FLOW | IFM_ETH_MASTER,
457 sc->mii_inst), MII_MEDIA_1000_T_FDX);
458 PRINT("1000baseT-FDX-flow-master");
459 }
460 fdx = 1;
461 }
462 }
463
464 if ((sc->mii_capabilities & BMSR_ANEG) != 0) {
465 /* intentionally invalid index */
466 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_AUTO, 0, sc->mii_inst),
467 MII_NMEDIA);
468 PRINT("auto");
469 if (fdx != 0 && (sc->mii_flags & MIIF_DOPAUSE) != 0) {
470 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_AUTO, IFM_FLOW,
471 sc->mii_inst), MII_NMEDIA);
472 PRINT("auto-flow");
473 }
474 }
475#undef ADD
476#undef PRINT
477}
478
479int
480mii_phy_detach(device_t dev)
481{
482 struct mii_softc *sc;
483
484 sc = device_get_softc(dev);
485 mii_phy_down(sc);
486 sc->mii_dev = NULL;
487 LIST_REMOVE(sc, mii_list);
488 return (0);
489}
490
491const struct mii_phydesc *
492mii_phy_match_gen(const struct mii_attach_args *ma,
493 const struct mii_phydesc *mpd, size_t len)
494{
495
496 for (; mpd->mpd_name != NULL;
497 mpd = (const struct mii_phydesc *)((const char *)mpd + len)) {
498 if (MII_OUI(ma->mii_id1, ma->mii_id2) == mpd->mpd_oui &&
499 MII_MODEL(ma->mii_id2) == mpd->mpd_model)
500 return (mpd);
501 }
502 return (NULL);
503}
504
505const struct mii_phydesc *
506mii_phy_match(const struct mii_attach_args *ma, const struct mii_phydesc *mpd)
507{
508
509 return (mii_phy_match_gen(ma, mpd, sizeof(struct mii_phydesc)));
510}
511
512int
513mii_phy_dev_probe(device_t dev, const struct mii_phydesc *mpd, int mrv)
514{
515
516 mpd = mii_phy_match(device_get_ivars(dev), mpd);
517 if (mpd != NULL) {
518 device_set_desc(dev, mpd->mpd_name);
519 return (mrv);
520 }
521 return (ENXIO);
522}
523
| 337
338 /*
339 * There are different interpretations for the bits in
340 * HomePNA PHYs. And there is really only one media type
341 * that is supported.
342 */
343 if ((sc->mii_flags & MIIF_IS_HPNA) != 0) {
344 if ((sc->mii_capabilities & BMSR_10THDX) != 0) {
345 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_HPNA_1, 0,
346 sc->mii_inst), MII_MEDIA_10_T);
347 PRINT("HomePNA1");
348 }
349 return;
350 }
351
352 if ((sc->mii_capabilities & BMSR_10THDX) != 0) {
353 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_10_T, 0, sc->mii_inst),
354 MII_MEDIA_10_T);
355 PRINT("10baseT");
356 }
357 if ((sc->mii_capabilities & BMSR_10TFDX) != 0) {
358 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_10_T, IFM_FDX, sc->mii_inst),
359 MII_MEDIA_10_T_FDX);
360 PRINT("10baseT-FDX");
361 if ((sc->mii_flags & MIIF_DOPAUSE) != 0 &&
362 (sc->mii_flags & MIIF_NOMANPAUSE) == 0) {
363 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_10_T,
364 IFM_FDX | IFM_FLOW, sc->mii_inst),
365 MII_MEDIA_10_T_FDX);
366 PRINT("10baseT-FDX-flow");
367 }
368 fdx = 1;
369 }
370 if ((sc->mii_capabilities & BMSR_100TXHDX) != 0) {
371 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, 0, sc->mii_inst),
372 MII_MEDIA_100_TX);
373 PRINT("100baseTX");
374 }
375 if ((sc->mii_capabilities & BMSR_100TXFDX) != 0) {
376 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, IFM_FDX, sc->mii_inst),
377 MII_MEDIA_100_TX_FDX);
378 PRINT("100baseTX-FDX");
379 if ((sc->mii_flags & MIIF_DOPAUSE) != 0 &&
380 (sc->mii_flags & MIIF_NOMANPAUSE) == 0) {
381 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_TX,
382 IFM_FDX | IFM_FLOW, sc->mii_inst),
383 MII_MEDIA_100_TX_FDX);
384 PRINT("100baseTX-FDX-flow");
385 }
386 fdx = 1;
387 }
388 if ((sc->mii_capabilities & BMSR_100T4) != 0) {
389 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_T4, 0, sc->mii_inst),
390 MII_MEDIA_100_T4);
391 PRINT("100baseT4");
392 }
393
394 if ((sc->mii_extcapabilities & EXTSR_MEDIAMASK) != 0) {
395 /*
396 * XXX Right now only handle 1000SX and 1000TX. Need
397 * XXX to handle 1000LX and 1000CX somehow.
398 */
399 if ((sc->mii_extcapabilities & EXTSR_1000XHDX) != 0) {
400 sc->mii_anegticks = MII_ANEGTICKS_GIGE;
401 sc->mii_flags |= MIIF_IS_1000X;
402 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_SX, 0,
403 sc->mii_inst), MII_MEDIA_1000_X);
404 PRINT("1000baseSX");
405 }
406 if ((sc->mii_extcapabilities & EXTSR_1000XFDX) != 0) {
407 sc->mii_anegticks = MII_ANEGTICKS_GIGE;
408 sc->mii_flags |= MIIF_IS_1000X;
409 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_SX, IFM_FDX,
410 sc->mii_inst), MII_MEDIA_1000_X_FDX);
411 PRINT("1000baseSX-FDX");
412 if ((sc->mii_flags & MIIF_DOPAUSE) != 0 &&
413 (sc->mii_flags & MIIF_NOMANPAUSE) == 0) {
414 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_SX,
415 IFM_FDX | IFM_FLOW, sc->mii_inst),
416 MII_MEDIA_1000_X_FDX);
417 PRINT("1000baseSX-FDX-flow");
418 }
419 fdx = 1;
420 }
421
422 /*
423 * 1000baseT media needs to be able to manipulate
424 * master/slave mode.
425 *
426 * All 1000baseT PHYs have a 1000baseT control register.
427 */
428 if ((sc->mii_extcapabilities & EXTSR_1000THDX) != 0) {
429 sc->mii_anegticks = MII_ANEGTICKS_GIGE;
430 sc->mii_flags |= MIIF_HAVE_GTCR;
431 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_T, 0,
432 sc->mii_inst), MII_MEDIA_1000_T);
433 PRINT("1000baseT");
434 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_T,
435 IFM_ETH_MASTER, sc->mii_inst), MII_MEDIA_1000_T);
436 PRINT("1000baseT-master");
437 }
438 if ((sc->mii_extcapabilities & EXTSR_1000TFDX) != 0) {
439 sc->mii_anegticks = MII_ANEGTICKS_GIGE;
440 sc->mii_flags |= MIIF_HAVE_GTCR;
441 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_T, IFM_FDX,
442 sc->mii_inst), MII_MEDIA_1000_T_FDX);
443 PRINT("1000baseT-FDX");
444 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_T,
445 IFM_FDX | IFM_ETH_MASTER, sc->mii_inst),
446 MII_MEDIA_1000_T_FDX);
447 PRINT("1000baseT-FDX-master");
448 if ((sc->mii_flags & MIIF_DOPAUSE) != 0 &&
449 (sc->mii_flags & MIIF_NOMANPAUSE) == 0) {
450 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_T,
451 IFM_FDX | IFM_FLOW, sc->mii_inst),
452 MII_MEDIA_1000_T_FDX);
453 PRINT("1000baseT-FDX-flow");
454 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_T,
455 IFM_FDX | IFM_FLOW | IFM_ETH_MASTER,
456 sc->mii_inst), MII_MEDIA_1000_T_FDX);
457 PRINT("1000baseT-FDX-flow-master");
458 }
459 fdx = 1;
460 }
461 }
462
463 if ((sc->mii_capabilities & BMSR_ANEG) != 0) {
464 /* intentionally invalid index */
465 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_AUTO, 0, sc->mii_inst),
466 MII_NMEDIA);
467 PRINT("auto");
468 if (fdx != 0 && (sc->mii_flags & MIIF_DOPAUSE) != 0) {
469 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_AUTO, IFM_FLOW,
470 sc->mii_inst), MII_NMEDIA);
471 PRINT("auto-flow");
472 }
473 }
474#undef ADD
475#undef PRINT
476}
477
478int
479mii_phy_detach(device_t dev)
480{
481 struct mii_softc *sc;
482
483 sc = device_get_softc(dev);
484 mii_phy_down(sc);
485 sc->mii_dev = NULL;
486 LIST_REMOVE(sc, mii_list);
487 return (0);
488}
489
490const struct mii_phydesc *
491mii_phy_match_gen(const struct mii_attach_args *ma,
492 const struct mii_phydesc *mpd, size_t len)
493{
494
495 for (; mpd->mpd_name != NULL;
496 mpd = (const struct mii_phydesc *)((const char *)mpd + len)) {
497 if (MII_OUI(ma->mii_id1, ma->mii_id2) == mpd->mpd_oui &&
498 MII_MODEL(ma->mii_id2) == mpd->mpd_model)
499 return (mpd);
500 }
501 return (NULL);
502}
503
504const struct mii_phydesc *
505mii_phy_match(const struct mii_attach_args *ma, const struct mii_phydesc *mpd)
506{
507
508 return (mii_phy_match_gen(ma, mpd, sizeof(struct mii_phydesc)));
509}
510
511int
512mii_phy_dev_probe(device_t dev, const struct mii_phydesc *mpd, int mrv)
513{
514
515 mpd = mii_phy_match(device_get_ivars(dev), mpd);
516 if (mpd != NULL) {
517 device_set_desc(dev, mpd->mpd_name);
518 return (mrv);
519 }
520 return (ENXIO);
521}
522
|
| 523void
524mii_phy_dev_attach(device_t dev, u_int flags, const struct mii_phy_funcs *mpf,
525 int add_media)
526{
527 struct mii_softc *sc;
528 struct mii_attach_args *ma;
529 struct mii_data *mii;
530
531 sc = device_get_softc(dev);
532 ma = device_get_ivars(dev);
533 sc->mii_dev = device_get_parent(dev);
534 mii = ma->mii_data;
535 LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list);
536
537 sc->mii_flags = flags | miibus_get_flags(dev);
538 sc->mii_mpd_oui = MII_OUI(ma->mii_id1, ma->mii_id2);
539 sc->mii_mpd_model = MII_MODEL(ma->mii_id2);
540 sc->mii_mpd_rev = MII_REV(ma->mii_id2);
541 sc->mii_capmask = ma->mii_capmask;
542 sc->mii_inst = mii->mii_instance++;
543 sc->mii_phy = ma->mii_phyno;
544 sc->mii_offset = ma->mii_offset;
545 sc->mii_funcs = mpf;
546 sc->mii_pdata = mii;
547
548 if (bootverbose)
549 device_printf(dev, "OUI 0x%06x, model 0x%04x, rev. %d\n",
550 sc->mii_mpd_oui, sc->mii_mpd_model, sc->mii_mpd_rev);
551
552 if (add_media == 0)
553 return;
554
555 PHY_RESET(sc);
556
557 sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & sc->mii_capmask;
558 if (sc->mii_capabilities & BMSR_EXTSTAT)
559 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR);
560 device_printf(dev, " ");
561 mii_phy_add_media(sc);
562 printf("\n");
563
564 MIIBUS_MEDIAINIT(sc->mii_dev);
565}
566
|
524/*
525 * Return the flow control status flag from MII_ANAR & MII_ANLPAR.
526 */
527u_int
528mii_phy_flowstatus(struct mii_softc *sc)
529{
530 int anar, anlpar;
531
532 if ((sc->mii_flags & MIIF_DOPAUSE) == 0)
533 return (0);
534
535 anar = PHY_READ(sc, MII_ANAR);
536 anlpar = PHY_READ(sc, MII_ANLPAR);
537
538 /*
539 * Check for 1000BASE-X. Autonegotiation is a bit
540 * different on such devices.
541 */
542 if ((sc->mii_flags & MIIF_IS_1000X) != 0) {
543 anar <<= 3;
544 anlpar <<= 3;
545 }
546
547 if ((anar & ANAR_PAUSE_SYM) != 0 && (anlpar & ANLPAR_PAUSE_SYM) != 0)
548 return (IFM_FLOW | IFM_ETH_TXPAUSE | IFM_ETH_RXPAUSE);
549
550 if ((anar & ANAR_PAUSE_SYM) == 0) {
551 if ((anar & ANAR_PAUSE_ASYM) != 0 &&
552 (anlpar & ANLPAR_PAUSE_TOWARDS) != 0)
553 return (IFM_FLOW | IFM_ETH_TXPAUSE);
554 else
555 return (0);
556 }
557
558 if ((anar & ANAR_PAUSE_ASYM) == 0) {
559 if ((anlpar & ANLPAR_PAUSE_SYM) != 0)
560 return (IFM_FLOW | IFM_ETH_TXPAUSE | IFM_ETH_RXPAUSE);
561 else
562 return (0);
563 }
564
565 switch ((anlpar & ANLPAR_PAUSE_TOWARDS)) {
566 case ANLPAR_PAUSE_NONE:
567 return (0);
568 case ANLPAR_PAUSE_ASYM:
569 return (IFM_FLOW | IFM_ETH_RXPAUSE);
570 default:
571 return (IFM_FLOW | IFM_ETH_RXPAUSE | IFM_ETH_TXPAUSE);
572 }
573 /* NOTREACHED */
574}
| 567/*
568 * Return the flow control status flag from MII_ANAR & MII_ANLPAR.
569 */
570u_int
571mii_phy_flowstatus(struct mii_softc *sc)
572{
573 int anar, anlpar;
574
575 if ((sc->mii_flags & MIIF_DOPAUSE) == 0)
576 return (0);
577
578 anar = PHY_READ(sc, MII_ANAR);
579 anlpar = PHY_READ(sc, MII_ANLPAR);
580
581 /*
582 * Check for 1000BASE-X. Autonegotiation is a bit
583 * different on such devices.
584 */
585 if ((sc->mii_flags & MIIF_IS_1000X) != 0) {
586 anar <<= 3;
587 anlpar <<= 3;
588 }
589
590 if ((anar & ANAR_PAUSE_SYM) != 0 && (anlpar & ANLPAR_PAUSE_SYM) != 0)
591 return (IFM_FLOW | IFM_ETH_TXPAUSE | IFM_ETH_RXPAUSE);
592
593 if ((anar & ANAR_PAUSE_SYM) == 0) {
594 if ((anar & ANAR_PAUSE_ASYM) != 0 &&
595 (anlpar & ANLPAR_PAUSE_TOWARDS) != 0)
596 return (IFM_FLOW | IFM_ETH_TXPAUSE);
597 else
598 return (0);
599 }
600
601 if ((anar & ANAR_PAUSE_ASYM) == 0) {
602 if ((anlpar & ANLPAR_PAUSE_SYM) != 0)
603 return (IFM_FLOW | IFM_ETH_TXPAUSE | IFM_ETH_RXPAUSE);
604 else
605 return (0);
606 }
607
608 switch ((anlpar & ANLPAR_PAUSE_TOWARDS)) {
609 case ANLPAR_PAUSE_NONE:
610 return (0);
611 case ANLPAR_PAUSE_ASYM:
612 return (IFM_FLOW | IFM_ETH_RXPAUSE);
613 default:
614 return (IFM_FLOW | IFM_ETH_RXPAUSE | IFM_ETH_TXPAUSE);
615 }
616 /* NOTREACHED */
617}
|