Annotation of sys/dev/mii/txphy.c, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: txphy.c,v 1.10 2005/02/19 06:00:04 brad Exp $ */
2:
3: /*
4: * Copyright (c) 1999 Jason L. Wright (jason@thought.net)
5: * All rights reserved.
6: *
7: * Redistribution and use in source and binary forms, with or without
8: * modification, are permitted provided that the following conditions
9: * are met:
10: * 1. Redistributions of source code must retain the above copyright
11: * notice, this list of conditions and the following disclaimer.
12: * 2. Redistributions in binary form must reproduce the above copyright
13: * notice, this list of conditions and the following disclaimer in the
14: * documentation and/or other materials provided with the distribution.
15: *
16: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18: * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19: * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
20: * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21: * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
22: * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
24: * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
25: * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26: * POSSIBILITY OF SUCH DAMAGE.
27: */
28:
29: /*
30: * Driver for the Texas Instruments TNETE2101 phy.
31: */
32:
33: #include <sys/param.h>
34: #include <sys/systm.h>
35: #include <sys/kernel.h>
36: #include <sys/device.h>
37: #include <sys/socket.h>
38: #include <sys/errno.h>
39:
40: #include <net/if.h>
41: #include <net/if_media.h>
42:
43: #include <dev/mii/mii.h>
44: #include <dev/mii/miivar.h>
45: #include <dev/mii/miidevs.h>
46:
47: int txphymatch(struct device *, void *, void *);
48: void txphyattach(struct device *, struct device *, void *);
49:
50: struct cfattach txphy_ca = {
51: sizeof(struct mii_softc), txphymatch, txphyattach, mii_phy_detach,
52: mii_phy_activate
53: };
54:
55: struct cfdriver txphy_cd = {
56: NULL, "txphy", DV_DULL
57: };
58:
59: int txphy_service(struct mii_softc *, struct mii_data *, int);
60:
61: const struct mii_phy_funcs txphy_funcs = {
62: txphy_service, ukphy_status, mii_phy_reset,
63: };
64:
65: static const struct mii_phydesc txphys[] = {
66: { MII_OUI_xxTI, MII_MODEL_xxTI_TNETE2101,
67: MII_STR_xxTI_TNETE2101 },
68:
69: { 0, 0,
70: NULL },
71: };
72:
73: int
74: txphymatch(struct device *parent, void *match, void *aux)
75: {
76: struct mii_attach_args *ma = aux;
77:
78: if (mii_phy_match(ma, txphys) != NULL)
79: return (10);
80:
81: return (0);
82: }
83:
84: void
85: txphyattach(struct device *parent, struct device *self, void *aux)
86: {
87: struct mii_softc *sc = (struct mii_softc *)self;
88: struct mii_attach_args *ma = aux;
89: struct mii_data *mii = ma->mii_data;
90: const struct mii_phydesc *mpd;
91:
92: mpd = mii_phy_match(ma, txphys);
93: printf(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2));
94:
95: sc->mii_inst = mii->mii_instance;
96: sc->mii_phy = ma->mii_phyno;
97: sc->mii_funcs = &txphy_funcs;
98: sc->mii_pdata = mii;
99: sc->mii_flags = ma->mii_flags;
100:
101: PHY_RESET(sc);
102:
103: sc->mii_capabilities =
104: PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
105: if (sc->mii_capabilities & BMSR_MEDIAMASK)
106: mii_phy_add_media(sc);
107: }
108:
109: int
110: txphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
111: {
112: struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
113:
114: if ((sc->mii_dev.dv_flags & DVF_ACTIVE) == 0)
115: return (ENXIO);
116:
117: /*
118: * Can't isolate the RTL8139 phy, so it has to be the only one.
119: */
120: if (IFM_INST(ife->ifm_media) != sc->mii_inst)
121: panic("txphy_service: attempt to isolate phy");
122:
123: switch (cmd) {
124: case MII_POLLSTAT:
125: break;
126:
127: case MII_MEDIACHG:
128: /*
129: * If the interface is not up, don't do anything.
130: */
131: if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
132: break;
133:
134: mii_phy_setmedia(sc);
135: break;
136:
137: case MII_TICK:
138: if (mii_phy_tick(sc) == EJUSTRETURN)
139: return (0);
140: break;
141:
142: case MII_DOWN:
143: mii_phy_down(sc);
144: return (0);
145: }
146:
147: /* Update the media status. */
148: mii_phy_status(sc);
149:
150: /* Callback if something changed. */
151: mii_phy_update(sc, cmd);
152: return (0);
153: }
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