2 * Copyright (c) 1997, 1998, 1999
3 * Bill Paul <wpaul@ee.columbia.edu>. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by Bill Paul.
16 * 4. Neither the name of the author nor the names of any co-contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
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
30 * THE POSSIBILITY OF SUCH DAMAGE.
33 #include <sys/cdefs.h>
34 __FBSDID("$FreeBSD$");
37 * Pseudo-driver for media selection on the Lite-On PNIC 82c168
38 * chip. The NWAY support on this chip is horribly broken, so we
39 * only support manual mode selection. This is lame, but getting
40 * NWAY to work right is amazingly difficult.
43 #include <sys/param.h>
44 #include <sys/systm.h>
45 #include <sys/kernel.h>
46 #include <sys/socket.h>
47 #include <sys/errno.h>
49 #include <sys/module.h>
50 #include <sys/mutex.h>
54 #include <net/if_arp.h>
55 #include <net/if_media.h>
57 #include <dev/mii/mii.h>
58 #include <dev/mii/miivar.h>
61 #include <machine/bus.h>
62 #include <machine/resource.h>
65 #include <dev/dc/if_dcreg.h>
67 #include "miibus_if.h"
69 #define DC_SETBIT(sc, reg, x) \
70 CSR_WRITE_4(sc, reg, \
71 CSR_READ_4(sc, reg) | x)
73 #define DC_CLRBIT(sc, reg, x) \
74 CSR_WRITE_4(sc, reg, \
75 CSR_READ_4(sc, reg) & ~x)
77 static int pnphy_probe(device_t);
78 static int pnphy_attach(device_t);
80 static device_method_t pnphy_methods[] = {
81 /* device interface */
82 DEVMETHOD(device_probe, pnphy_probe),
83 DEVMETHOD(device_attach, pnphy_attach),
84 DEVMETHOD(device_detach, mii_phy_detach),
85 DEVMETHOD(device_shutdown, bus_generic_shutdown),
89 static devclass_t pnphy_devclass;
91 static driver_t pnphy_driver = {
94 sizeof(struct mii_softc)
97 DRIVER_MODULE(pnphy, miibus, pnphy_driver, pnphy_devclass, 0, 0);
99 static int pnphy_service(struct mii_softc *, struct mii_data *, int);
100 static void pnphy_status(struct mii_softc *);
103 pnphy_probe(device_t dev)
105 struct mii_attach_args *ma;
107 ma = device_get_ivars(dev);
110 * The dc driver will report the 82c168 vendor and device
111 * ID to let us know that it wants us to attach.
113 if (ma->mii_id1 != DC_VENDORID_LO ||
114 ma->mii_id2 != DC_DEVICEID_82C168)
117 device_set_desc(dev, "PNIC 82c168 media interface");
119 return (BUS_PROBE_DEFAULT);
123 pnphy_attach(device_t dev)
125 struct mii_softc *sc;
126 struct mii_attach_args *ma;
127 struct mii_data *mii;
129 sc = device_get_softc(dev);
130 ma = device_get_ivars(dev);
131 sc->mii_dev = device_get_parent(dev);
132 mii = device_get_softc(sc->mii_dev);
133 LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list);
135 sc->mii_inst = mii->mii_instance;
136 sc->mii_phy = ma->mii_phyno;
137 sc->mii_service = pnphy_service;
140 sc->mii_flags |= MIIF_NOISOLATE;
143 #define ADD(m, c) ifmedia_add(&mii->mii_media, (m), (c), NULL)
145 sc->mii_capabilities =
146 BMSR_100TXFDX|BMSR_100TXHDX|BMSR_10TFDX|BMSR_10THDX;
147 sc->mii_capabilities &= ma->mii_capmask;
148 device_printf(dev, " ");
151 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_NONE, 0, sc->mii_inst),
154 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, IFM_LOOP, sc->mii_inst),
155 BMCR_LOOP|BMCR_S100);
159 MIIBUS_MEDIAINIT(sc->mii_dev);
164 pnphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
166 struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
171 * If we're not polling our PHY instance, just return.
173 if (IFM_INST(ife->ifm_media) != sc->mii_inst) {
180 * If the media indicates a different PHY instance,
183 if (IFM_INST(ife->ifm_media) != sc->mii_inst)
187 * If the interface is not up, don't do anything.
189 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
194 switch (IFM_SUBTYPE(ife->ifm_media)) {
196 /* NWAY is busted on this chip */
199 * XXX Not supported as a manual setting right now.
203 mii->mii_media_active = IFM_ETHER|IFM_100_TX;
204 if ((ife->ifm_media & IFM_GMASK) == IFM_FDX)
205 mii->mii_media_active |= IFM_FDX;
206 MIIBUS_STATCHG(sc->mii_dev);
209 mii->mii_media_active = IFM_ETHER|IFM_10_T;
210 if ((ife->ifm_media & IFM_GMASK) == IFM_FDX)
211 mii->mii_media_active |= IFM_FDX;
212 MIIBUS_STATCHG(sc->mii_dev);
221 * If we're not currently selected, just return.
223 if (IFM_INST(ife->ifm_media) != sc->mii_inst)
227 * Is the interface even up?
229 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
235 /* Update the media status. */
238 /* Callback if something changed. */
239 mii_phy_update(sc, cmd);
244 pnphy_status(struct mii_softc *sc)
246 struct mii_data *mii = sc->mii_pdata;
248 struct dc_softc *dc_sc;
250 dc_sc = mii->mii_ifp->if_softc;
252 mii->mii_media_status = IFM_AVALID;
253 mii->mii_media_active = IFM_ETHER;
255 reg = CSR_READ_4(dc_sc, DC_ISR);
257 if (!(reg & DC_ISR_LINKFAIL))
258 mii->mii_media_status |= IFM_ACTIVE;
260 if (CSR_READ_4(dc_sc, DC_NETCFG) & DC_NETCFG_SPEEDSEL)
261 mii->mii_media_active |= IFM_10_T;
263 mii->mii_media_active |= IFM_100_TX;
264 if (CSR_READ_4(dc_sc, DC_NETCFG) & DC_NETCFG_FULLDUPLEX)
265 mii->mii_media_active |= IFM_FDX;