2 * SPDX-License-Identifier: BSD-4-Clause
4 * Copyright (c) 1997, 1998, 1999
5 * Bill Paul <wpaul@ee.columbia.edu>. All rights reserved.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
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11 * notice, this list of conditions and the following disclaimer.
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14 * documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 * must display the following acknowledgement:
17 * This product includes software developed by Bill Paul.
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19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
22 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
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29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
32 * THE POSSIBILITY OF SUCH DAMAGE.
35 #include <sys/cdefs.h>
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_var.h>
55 #include <net/if_arp.h>
56 #include <net/if_media.h>
58 #include <dev/mii/mii.h>
59 #include <dev/mii/miivar.h>
62 #include <machine/bus.h>
63 #include <machine/resource.h>
65 #include <dev/dc/if_dcreg.h>
67 #include "miibus_if.h"
69 static int pnphy_probe(device_t);
70 static int pnphy_attach(device_t);
72 static device_method_t pnphy_methods[] = {
73 /* device interface */
74 DEVMETHOD(device_probe, pnphy_probe),
75 DEVMETHOD(device_attach, pnphy_attach),
76 DEVMETHOD(device_detach, mii_phy_detach),
77 DEVMETHOD(device_shutdown, bus_generic_shutdown),
81 static driver_t pnphy_driver = {
84 sizeof(struct mii_softc)
87 DRIVER_MODULE(pnphy, miibus, pnphy_driver, 0, 0);
89 static int pnphy_service(struct mii_softc *, struct mii_data *, int);
90 static void pnphy_status(struct mii_softc *);
91 static void pnphy_reset(struct mii_softc *);
93 static const struct mii_phy_funcs pnphy_funcs = {
100 pnphy_probe(device_t dev)
102 struct mii_attach_args *ma;
104 ma = device_get_ivars(dev);
107 * The dc driver will report the 82c168 vendor and device
108 * ID to let us know that it wants us to attach.
110 if (ma->mii_id1 != DC_VENDORID_LO ||
111 ma->mii_id2 != DC_DEVICEID_82C168)
114 device_set_desc(dev, "PNIC 82c168 media interface");
116 return (BUS_PROBE_DEFAULT);
120 pnphy_attach(device_t dev)
122 struct mii_softc *sc;
124 sc = device_get_softc(dev);
126 mii_phy_dev_attach(dev, MIIF_NOISOLATE | MIIF_NOMANPAUSE,
129 sc->mii_capabilities =
130 BMSR_100TXFDX | BMSR_100TXHDX | BMSR_10TFDX | BMSR_10THDX;
131 sc->mii_capabilities &= sc->mii_capmask;
132 device_printf(dev, " ");
133 mii_phy_add_media(sc);
136 MIIBUS_MEDIAINIT(sc->mii_dev);
141 pnphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
143 struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
151 * If the interface is not up, don't do anything.
153 if ((if_getflags(mii->mii_ifp) & IFF_UP) == 0)
157 * Note that auto-negotiation is broken on this chip.
159 switch (IFM_SUBTYPE(ife->ifm_media)) {
161 mii->mii_media_active = IFM_ETHER | IFM_100_TX;
162 if ((ife->ifm_media & IFM_FDX) != 0)
163 mii->mii_media_active |= IFM_FDX;
164 MIIBUS_STATCHG(sc->mii_dev);
167 mii->mii_media_active = IFM_ETHER | IFM_10_T;
168 if ((ife->ifm_media & IFM_FDX) != 0)
169 mii->mii_media_active |= IFM_FDX;
170 MIIBUS_STATCHG(sc->mii_dev);
179 * Is the interface even up?
181 if ((if_getflags(mii->mii_ifp) & IFF_UP) == 0)
187 /* Update the media status. */
190 /* Callback if something changed. */
191 mii_phy_update(sc, cmd);
196 pnphy_status(struct mii_softc *sc)
198 struct mii_data *mii = sc->mii_pdata;
200 struct dc_softc *dc_sc;
202 dc_sc = if_getsoftc(mii->mii_ifp);
204 mii->mii_media_status = IFM_AVALID;
205 mii->mii_media_active = IFM_ETHER;
207 reg = CSR_READ_4(dc_sc, DC_ISR);
208 if (!(reg & DC_ISR_LINKFAIL))
209 mii->mii_media_status |= IFM_ACTIVE;
210 reg = CSR_READ_4(dc_sc, DC_NETCFG);
211 if (reg & DC_NETCFG_SPEEDSEL)
212 mii->mii_media_active |= IFM_10_T;
214 mii->mii_media_active |= IFM_100_TX;
215 if (reg & DC_NETCFG_FULLDUPLEX)
216 mii->mii_media_active |= IFM_FDX;
218 mii->mii_media_active |= IFM_HDX;
222 pnphy_reset(struct mii_softc *sc __unused)