acphy.c revision 1.29 1 1.29 msaitoh /* $NetBSD: acphy.c,v 1.29 2019/11/27 10:19:20 msaitoh Exp $ */
2 1.1 thorpej
3 1.1 thorpej /*
4 1.1 thorpej * Copyright 2001 Wasabi Systems, Inc.
5 1.1 thorpej * All rights reserved.
6 1.1 thorpej *
7 1.1 thorpej * Written by Jason R. Thorpe for Wasabi Systems, Inc.
8 1.1 thorpej *
9 1.1 thorpej * Redistribution and use in source and binary forms, with or without
10 1.1 thorpej * modification, are permitted provided that the following conditions
11 1.1 thorpej * are met:
12 1.1 thorpej * 1. Redistributions of source code must retain the above copyright
13 1.1 thorpej * notice, this list of conditions and the following disclaimer.
14 1.1 thorpej * 2. Redistributions in binary form must reproduce the above copyright
15 1.1 thorpej * notice, this list of conditions and the following disclaimer in the
16 1.1 thorpej * documentation and/or other materials provided with the distribution.
17 1.1 thorpej * 3. All advertising materials mentioning features or use of this software
18 1.1 thorpej * must display the following acknowledgement:
19 1.1 thorpej * This product includes software developed for the NetBSD Project by
20 1.1 thorpej * Wasabi Systems, Inc.
21 1.1 thorpej * 4. The name of Wasabi Systems, Inc. may not be used to endorse
22 1.1 thorpej * or promote products derived from this software without specific prior
23 1.1 thorpej * written permission.
24 1.1 thorpej *
25 1.1 thorpej * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
26 1.1 thorpej * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
27 1.1 thorpej * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
28 1.1 thorpej * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
29 1.1 thorpej * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
30 1.1 thorpej * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31 1.1 thorpej * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
32 1.1 thorpej * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
33 1.1 thorpej * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
34 1.1 thorpej * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
35 1.1 thorpej * POSSIBILITY OF SUCH DAMAGE.
36 1.1 thorpej */
37 1.1 thorpej
38 1.1 thorpej /*
39 1.1 thorpej * Driver for the Altima AC101 PHY.
40 1.1 thorpej */
41 1.3 lukem
42 1.3 lukem #include <sys/cdefs.h>
43 1.29 msaitoh __KERNEL_RCSID(0, "$NetBSD: acphy.c,v 1.29 2019/11/27 10:19:20 msaitoh Exp $");
44 1.1 thorpej
45 1.1 thorpej #include <sys/param.h>
46 1.1 thorpej #include <sys/systm.h>
47 1.1 thorpej #include <sys/kernel.h>
48 1.1 thorpej #include <sys/device.h>
49 1.1 thorpej #include <sys/socket.h>
50 1.1 thorpej #include <sys/errno.h>
51 1.1 thorpej
52 1.1 thorpej #include <net/if.h>
53 1.1 thorpej #include <net/if_media.h>
54 1.1 thorpej
55 1.1 thorpej #include <dev/mii/mii.h>
56 1.1 thorpej #include <dev/mii/miivar.h>
57 1.1 thorpej #include <dev/mii/miidevs.h>
58 1.1 thorpej
59 1.1 thorpej #include <dev/mii/acphyreg.h>
60 1.1 thorpej
61 1.22 xtraeme static int acphymatch(device_t, cfdata_t, void *);
62 1.22 xtraeme static void acphyattach(device_t, device_t, void *);
63 1.1 thorpej
64 1.22 xtraeme CFATTACH_DECL_NEW(acphy, sizeof(struct mii_softc),
65 1.10 thorpej acphymatch, acphyattach, mii_phy_detach, mii_phy_activate);
66 1.1 thorpej
67 1.14 thorpej static int acphy_service(struct mii_softc *, struct mii_data *, int);
68 1.14 thorpej static void acphy_status(struct mii_softc *);
69 1.1 thorpej
70 1.14 thorpej static const struct mii_phy_funcs acphy_funcs = {
71 1.1 thorpej acphy_service, acphy_status, mii_phy_reset,
72 1.1 thorpej };
73 1.1 thorpej
74 1.14 thorpej static const struct mii_phydesc acphys[] = {
75 1.27 christos MII_PHY_DESC(ALTIMA, AC101),
76 1.27 christos MII_PHY_DESC(ALTIMA, AC101L),
77 1.27 christos MII_PHY_DESC(ALTIMA, Am79C874),
78 1.27 christos MII_PHY_DESC(ALTIMA, Am79C875),
79 1.4 augustss /* XXX This is reported to work, but it's not from any data sheet. */
80 1.27 christos MII_PHY_DESC(ALTIMA, ACXXX),
81 1.27 christos MII_PHY_END,
82 1.1 thorpej };
83 1.1 thorpej
84 1.14 thorpej static int
85 1.22 xtraeme acphymatch(device_t parent, cfdata_t match, void *aux)
86 1.1 thorpej {
87 1.1 thorpej struct mii_attach_args *ma = aux;
88 1.1 thorpej
89 1.1 thorpej if (mii_phy_match(ma, acphys) != NULL)
90 1.28 msaitoh return 10;
91 1.1 thorpej
92 1.28 msaitoh return 0;
93 1.1 thorpej }
94 1.1 thorpej
95 1.14 thorpej static void
96 1.22 xtraeme acphyattach(device_t parent, device_t self, void *aux)
97 1.1 thorpej {
98 1.16 thorpej struct mii_softc *sc = device_private(self);
99 1.1 thorpej struct mii_attach_args *ma = aux;
100 1.1 thorpej struct mii_data *mii = ma->mii_data;
101 1.1 thorpej const struct mii_phydesc *mpd;
102 1.1 thorpej
103 1.1 thorpej mpd = mii_phy_match(ma, acphys);
104 1.13 thorpej aprint_naive(": Media interface\n");
105 1.13 thorpej aprint_normal(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2));
106 1.1 thorpej
107 1.22 xtraeme sc->mii_dev = self;
108 1.1 thorpej sc->mii_inst = mii->mii_instance;
109 1.1 thorpej sc->mii_phy = ma->mii_phyno;
110 1.1 thorpej sc->mii_funcs = &acphy_funcs;
111 1.1 thorpej sc->mii_pdata = mii;
112 1.5 thorpej sc->mii_flags = ma->mii_flags;
113 1.1 thorpej
114 1.1 thorpej PHY_RESET(sc);
115 1.1 thorpej
116 1.28 msaitoh /* XXX Check MCR_FX_SEL to set MIIF_HAVE_FIBER? */
117 1.1 thorpej
118 1.26 msaitoh PHY_READ(sc, MII_BMSR, &sc->mii_capabilities);
119 1.26 msaitoh sc->mii_capabilities &= ma->mii_capmask;
120 1.22 xtraeme aprint_normal_dev(sc->mii_dev, "");
121 1.12 matt
122 1.12 matt #define ADD(m, c) ifmedia_add(&mii->mii_media, (m), (c), NULL)
123 1.12 matt if (sc->mii_flags & MIIF_HAVEFIBER) {
124 1.29 msaitoh sc->mii_anegticks = MII_ANEGTICKS;
125 1.12 matt ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_FX, 0, sc->mii_inst),
126 1.12 matt MII_MEDIA_100_TX);
127 1.13 thorpej aprint_normal("100baseFX, ");
128 1.12 matt ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_FX, IFM_FDX, sc->mii_inst),
129 1.12 matt MII_MEDIA_100_TX);
130 1.29 msaitoh aprint_normal("100baseFX-FDX\n");
131 1.12 matt }
132 1.12 matt #undef ADD
133 1.12 matt
134 1.29 msaitoh mii_phy_add_media(sc);
135 1.1 thorpej }
136 1.1 thorpej
137 1.14 thorpej static int
138 1.2 thorpej acphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
139 1.1 thorpej {
140 1.1 thorpej struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
141 1.26 msaitoh uint16_t reg;
142 1.1 thorpej
143 1.1 thorpej switch (cmd) {
144 1.1 thorpej case MII_POLLSTAT:
145 1.28 msaitoh /* If we're not polling our PHY instance, just return. */
146 1.1 thorpej if (IFM_INST(ife->ifm_media) != sc->mii_inst)
147 1.28 msaitoh return 0;
148 1.1 thorpej break;
149 1.1 thorpej
150 1.1 thorpej case MII_MEDIACHG:
151 1.1 thorpej /*
152 1.1 thorpej * If the media indicates a different PHY instance,
153 1.1 thorpej * isolate ourselves.
154 1.1 thorpej */
155 1.1 thorpej if (IFM_INST(ife->ifm_media) != sc->mii_inst) {
156 1.26 msaitoh PHY_READ(sc, MII_BMCR, ®);
157 1.1 thorpej PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO);
158 1.28 msaitoh return 0;
159 1.1 thorpej }
160 1.1 thorpej
161 1.28 msaitoh /* If the interface is not up, don't do anything. */
162 1.1 thorpej if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
163 1.1 thorpej break;
164 1.1 thorpej
165 1.1 thorpej mii_phy_setmedia(sc);
166 1.1 thorpej break;
167 1.1 thorpej
168 1.1 thorpej case MII_TICK:
169 1.28 msaitoh /* If we're not currently selected, just return. */
170 1.1 thorpej if (IFM_INST(ife->ifm_media) != sc->mii_inst)
171 1.28 msaitoh return 0;
172 1.1 thorpej
173 1.1 thorpej if (mii_phy_tick(sc) == EJUSTRETURN)
174 1.28 msaitoh return 0;
175 1.1 thorpej break;
176 1.1 thorpej
177 1.1 thorpej case MII_DOWN:
178 1.1 thorpej mii_phy_down(sc);
179 1.28 msaitoh return 0;
180 1.1 thorpej }
181 1.1 thorpej
182 1.1 thorpej /* Update the media status. */
183 1.1 thorpej mii_phy_status(sc);
184 1.1 thorpej
185 1.1 thorpej /* Callback if something changed. */
186 1.1 thorpej mii_phy_update(sc, cmd);
187 1.28 msaitoh return 0;
188 1.1 thorpej }
189 1.1 thorpej
190 1.14 thorpej static void
191 1.2 thorpej acphy_status(struct mii_softc *sc)
192 1.1 thorpej {
193 1.1 thorpej struct mii_data *mii = sc->mii_pdata;
194 1.1 thorpej struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
195 1.26 msaitoh uint16_t bmsr, bmcr, dr;
196 1.1 thorpej
197 1.1 thorpej mii->mii_media_status = IFM_AVALID;
198 1.1 thorpej mii->mii_media_active = IFM_ETHER;
199 1.1 thorpej
200 1.26 msaitoh PHY_READ(sc, MII_BMSR, &bmsr);
201 1.26 msaitoh PHY_READ(sc, MII_BMSR, &bmsr);
202 1.26 msaitoh PHY_READ(sc, MII_ACPHY_DR, &dr);
203 1.1 thorpej
204 1.1 thorpej if (bmsr & BMSR_LINK)
205 1.1 thorpej mii->mii_media_status |= IFM_ACTIVE;
206 1.1 thorpej
207 1.26 msaitoh PHY_READ(sc, MII_BMCR, &bmcr);
208 1.1 thorpej if (bmcr & BMCR_ISO) {
209 1.1 thorpej mii->mii_media_active |= IFM_NONE;
210 1.1 thorpej mii->mii_media_status = 0;
211 1.1 thorpej return;
212 1.1 thorpej }
213 1.1 thorpej
214 1.1 thorpej if (bmcr & BMCR_LOOP)
215 1.1 thorpej mii->mii_media_active |= IFM_LOOP;
216 1.1 thorpej
217 1.1 thorpej if (bmcr & BMCR_AUTOEN) {
218 1.1 thorpej /*
219 1.6 wiz * The media status bits are only valid if autonegotiation
220 1.1 thorpej * has completed (or it's disabled).
221 1.1 thorpej */
222 1.1 thorpej if ((bmsr & BMSR_ACOMP) == 0) {
223 1.1 thorpej /* Erg, still trying, I guess... */
224 1.1 thorpej mii->mii_media_active |= IFM_NONE;
225 1.1 thorpej return;
226 1.1 thorpej }
227 1.1 thorpej
228 1.1 thorpej if (dr & DR_SPEED)
229 1.1 thorpej mii->mii_media_active |= IFM_100_TX;
230 1.1 thorpej else
231 1.1 thorpej mii->mii_media_active |= IFM_10_T;
232 1.24 msaitoh
233 1.1 thorpej if (dr & DR_DPLX)
234 1.1 thorpej mii->mii_media_active |= IFM_FDX;
235 1.24 msaitoh else
236 1.24 msaitoh mii->mii_media_active |= IFM_HDX;
237 1.1 thorpej } else
238 1.1 thorpej mii->mii_media_active = ife->ifm_media;
239 1.1 thorpej }
240