FreeBSD/Linux Kernel Cross Reference
sys/dev/mii/truephy.c
1 /*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 2007 The DragonFly Project. All rights reserved.
5 *
6 * This code is derived from software contributed to The DragonFly Project
7 * by Sepherosa Ziehau <sepherosa@gmail.com>
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 *
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in
17 * the documentation and/or other materials provided with the
18 * distribution.
19 * 3. Neither the name of The DragonFly Project nor the names of its
20 * contributors may be used to endorse or promote products derived
21 * from this software without specific, prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
24 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
25 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
26 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
27 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
28 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
29 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
30 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
31 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
32 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
33 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 *
36 * $DragonFly: src/sys/dev/netif/mii_layer/truephy.c,v 1.3 2008/02/10 07:29:27 sephe Exp $
37 * $FreeBSD$
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_var.h>
50 #include <net/if_media.h>
51 #include <net/if_arp.h>
52 #include <net/ethernet.h>
53 #include <net/if_vlan_var.h>
54
55 #include <dev/mii/mii.h>
56 #include <dev/mii/miivar.h>
57 #include "miidevs.h"
58
59 #include <dev/mii/truephyreg.h>
60
61 #include "miibus_if.h"
62
63 #define TRUEPHY_FRAMELEN(mtu) \
64 (ETHER_HDR_LEN + ETHER_VLAN_ENCAP_LEN + (mtu) + ETHER_CRC_LEN)
65
66 static int truephy_service(struct mii_softc *, struct mii_data *, int);
67 static int truephy_attach(device_t);
68 static int truephy_probe(device_t);
69 static void truephy_reset(struct mii_softc *);
70 static void truephy_status(struct mii_softc *);
71
72 static device_method_t truephy_methods[] = {
73 /* device interface */
74 DEVMETHOD(device_probe, truephy_probe),
75 DEVMETHOD(device_attach, truephy_attach),
76 DEVMETHOD(device_detach, mii_phy_detach),
77 DEVMETHOD(device_shutdown, bus_generic_shutdown),
78 DEVMETHOD_END
79 };
80
81 static const struct mii_phydesc truephys[] = {
82 MII_PHY_DESC(AGERE, ET1011),
83 MII_PHY_DESC(AGERE, ET1011C),
84 MII_PHY_END
85 };
86
87 static driver_t truephy_driver = {
88 "truephy",
89 truephy_methods,
90 sizeof(struct mii_softc)
91 };
92
93 DRIVER_MODULE(truephy, miibus, truephy_driver, 0, 0);
94
95 static const struct mii_phy_funcs truephy_funcs = {
96 truephy_service,
97 truephy_status,
98 truephy_reset
99 };
100
101 static const struct truephy_dsp {
102 uint16_t index;
103 uint16_t data;
104 } truephy_dspcode[] = {
105 { 0x880b, 0x0926 }, /* AfeIfCreg4B1000Msbs */
106 { 0x880c, 0x0926 }, /* AfeIfCreg4B100Msbs */
107 { 0x880d, 0x0926 }, /* AfeIfCreg4B10Msbs */
108
109 { 0x880e, 0xb4d3 }, /* AfeIfCreg4B1000Lsbs */
110 { 0x880f, 0xb4d3 }, /* AfeIfCreg4B100Lsbs */
111 { 0x8810, 0xb4d3 }, /* AfeIfCreg4B10Lsbs */
112
113 { 0x8805, 0xb03e }, /* AfeIfCreg3B1000Msbs */
114 { 0x8806, 0xb03e }, /* AfeIfCreg3B100Msbs */
115 { 0x8807, 0xff00 }, /* AfeIfCreg3B10Msbs */
116
117 { 0x8808, 0xe090 }, /* AfeIfCreg3B1000Lsbs */
118 { 0x8809, 0xe110 }, /* AfeIfCreg3B100Lsbs */
119 { 0x880a, 0x0000 }, /* AfeIfCreg3B10Lsbs */
120
121 { 0x300d, 1 }, /* DisableNorm */
122
123 { 0x280c, 0x0180 }, /* LinkHoldEnd */
124
125 { 0x1c21, 0x0002 }, /* AlphaM */
126
127 { 0x3821, 6 }, /* FfeLkgTx0 */
128 { 0x381d, 1 }, /* FfeLkg1g4 */
129 { 0x381e, 1 }, /* FfeLkg1g5 */
130 { 0x381f, 1 }, /* FfeLkg1g6 */
131 { 0x3820, 1 }, /* FfeLkg1g7 */
132
133 { 0x8402, 0x01f0 }, /* Btinact */
134 { 0x800e, 20 }, /* LftrainTime */
135 { 0x800f, 24 }, /* DvguardTime */
136 { 0x8010, 46 } /* IdlguardTime */
137 };
138
139 static int
140 truephy_probe(device_t dev)
141 {
142
143 return (mii_phy_dev_probe(dev, truephys, BUS_PROBE_DEFAULT));
144 }
145
146 static int
147 truephy_attach(device_t dev)
148 {
149 struct mii_softc *sc;
150
151 sc = device_get_softc(dev);
152
153 mii_phy_dev_attach(dev, MIIF_NOISOLATE | MIIF_NOMANPAUSE,
154 &truephy_funcs, 0);
155
156 PHY_RESET(sc);
157
158 sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & sc->mii_capmask;
159 if (sc->mii_capabilities & BMSR_EXTSTAT) {
160 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR);
161 /* No 1000baseT half-duplex support */
162 sc->mii_extcapabilities &= ~EXTSR_1000THDX;
163 }
164
165 device_printf(dev, " ");
166 mii_phy_add_media(sc);
167 printf("\n");
168
169 MIIBUS_MEDIAINIT(sc->mii_dev);
170 return (0);
171 }
172
173 static int
174 truephy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
175 {
176 struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
177 int bmcr;
178
179 switch (cmd) {
180 case MII_POLLSTAT:
181 break;
182
183 case MII_MEDIACHG:
184 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) {
185 bmcr = PHY_READ(sc, MII_BMCR) & ~BMCR_AUTOEN;
186 PHY_WRITE(sc, MII_BMCR, bmcr);
187 PHY_WRITE(sc, MII_BMCR, bmcr | BMCR_PDOWN);
188 }
189
190 mii_phy_setmedia(sc);
191
192 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) {
193 bmcr = PHY_READ(sc, MII_BMCR) & ~BMCR_PDOWN;
194 PHY_WRITE(sc, MII_BMCR, bmcr);
195
196 if (IFM_SUBTYPE(ife->ifm_media) == IFM_1000_T) {
197 PHY_WRITE(sc, MII_BMCR,
198 bmcr | BMCR_AUTOEN | BMCR_STARTNEG);
199 }
200 }
201 break;
202
203 case MII_TICK:
204 if (mii_phy_tick(sc) == EJUSTRETURN)
205 return (0);
206 break;
207 }
208
209 /* Update the media status. */
210 PHY_STATUS(sc);
211
212 /* Callback if something changed. */
213 mii_phy_update(sc, cmd);
214 return (0);
215 }
216
217 static void
218 truephy_reset(struct mii_softc *sc)
219 {
220 int i;
221
222 if (sc->mii_mpd_model == MII_MODEL_AGERE_ET1011) {
223 mii_phy_reset(sc);
224 return;
225 }
226
227 for (i = 0; i < 2; ++i) {
228 PHY_READ(sc, MII_PHYIDR1);
229 PHY_READ(sc, MII_PHYIDR2);
230
231 PHY_READ(sc, TRUEPHY_CTRL);
232 PHY_WRITE(sc, TRUEPHY_CTRL,
233 TRUEPHY_CTRL_DIAG | TRUEPHY_CTRL_RSV1);
234
235 PHY_WRITE(sc, TRUEPHY_INDEX, TRUEPHY_INDEX_MAGIC);
236 PHY_READ(sc, TRUEPHY_DATA);
237
238 PHY_WRITE(sc, TRUEPHY_CTRL, TRUEPHY_CTRL_RSV1);
239 }
240
241 PHY_READ(sc, MII_BMCR);
242 PHY_READ(sc, TRUEPHY_CTRL);
243 PHY_WRITE(sc, MII_BMCR, BMCR_AUTOEN | BMCR_PDOWN | BMCR_S1000);
244 PHY_WRITE(sc, TRUEPHY_CTRL,
245 TRUEPHY_CTRL_DIAG | TRUEPHY_CTRL_RSV1 | TRUEPHY_CTRL_RSV0);
246
247 for (i = 0; i < nitems(truephy_dspcode); ++i) {
248 const struct truephy_dsp *dsp = &truephy_dspcode[i];
249
250 PHY_WRITE(sc, TRUEPHY_INDEX, dsp->index);
251 PHY_WRITE(sc, TRUEPHY_DATA, dsp->data);
252
253 PHY_WRITE(sc, TRUEPHY_INDEX, dsp->index);
254 PHY_READ(sc, TRUEPHY_DATA);
255 }
256
257 PHY_READ(sc, MII_BMCR);
258 PHY_READ(sc, TRUEPHY_CTRL);
259 PHY_WRITE(sc, MII_BMCR, BMCR_AUTOEN | BMCR_S1000);
260 PHY_WRITE(sc, TRUEPHY_CTRL, TRUEPHY_CTRL_RSV1);
261
262 mii_phy_reset(sc);
263
264 if (TRUEPHY_FRAMELEN((if_getmtu(sc->mii_pdata->mii_ifp)) > 2048)) {
265 int conf;
266
267 conf = PHY_READ(sc, TRUEPHY_CONF);
268 conf &= ~TRUEPHY_CONF_TXFIFO_MASK;
269 conf |= TRUEPHY_CONF_TXFIFO_24;
270 PHY_WRITE(sc, TRUEPHY_CONF, conf);
271 }
272 }
273
274 static void
275 truephy_status(struct mii_softc *sc)
276 {
277 struct mii_data *mii = sc->mii_pdata;
278 int bmsr, bmcr, sr;
279
280 mii->mii_media_status = IFM_AVALID;
281 mii->mii_media_active = IFM_ETHER;
282
283 sr = PHY_READ(sc, TRUEPHY_SR);
284 bmcr = PHY_READ(sc, MII_BMCR);
285
286 bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR);
287 if (bmsr & BMSR_LINK)
288 mii->mii_media_status |= IFM_ACTIVE;
289
290 if (bmcr & BMCR_AUTOEN) {
291 if ((bmsr & BMSR_ACOMP) == 0) {
292 mii->mii_media_active |= IFM_NONE;
293 return;
294 }
295 }
296
297 switch (sr & TRUEPHY_SR_SPD_MASK) {
298 case TRUEPHY_SR_SPD_1000T:
299 mii->mii_media_active |= IFM_1000_T;
300 break;
301 case TRUEPHY_SR_SPD_100TX:
302 mii->mii_media_active |= IFM_100_TX;
303 break;
304 case TRUEPHY_SR_SPD_10T:
305 mii->mii_media_active |= IFM_10_T;
306 break;
307 default:
308 /* XXX will this ever happen? */
309 printf("invalid media SR %#x\n", sr);
310 mii->mii_media_active |= IFM_NONE;
311 return;
312 }
313
314 if (sr & TRUEPHY_SR_FDX)
315 mii->mii_media_active |= IFM_FDX | mii_phy_flowstatus(sc);
316 else
317 mii->mii_media_active |= IFM_HDX;
318 }
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