Annotation of sys/dev/ic/dl10019.c, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: dl10019.c,v 1.3 2003/06/25 17:35:36 miod Exp $ */
2: /* $NetBSD$ */
3:
4: /*-
5: * Copyright (c) 2001 The NetBSD Foundation, Inc.
6: * All rights reserved.
7: *
8: * This code is derived from software contributed to The NetBSD Foundation
9: * by Jason R. Thorpe.
10: *
11: * Redistribution and use in source and binary forms, with or without
12: * modification, are permitted provided that the following conditions
13: * are met:
14: * 1. Redistributions of source code must retain the above copyright
15: * notice, this list of conditions and the following disclaimer.
16: * 2. Redistributions in binary form must reproduce the above copyright
17: * notice, this list of conditions and the following disclaimer in the
18: * documentation and/or other materials provided with the distribution.
19: * 3. All advertising materials mentioning features or use of this software
20: * must display the following acknowledgement:
21: * This product includes software developed by the NetBSD
22: * Foundation, Inc. and its contributors.
23: * 4. Neither the name of The NetBSD Foundation nor the names of its
24: * contributors may be used to endorse or promote products derived
25: * from this software without specific prior written permission.
26: *
27: * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
28: * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
29: * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
30: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
31: * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37: * POSSIBILITY OF SUCH DAMAGE.
38: */
39:
40: #include <sys/param.h>
41: #include <sys/systm.h>
42: #include <sys/device.h>
43: #include <sys/mbuf.h>
44: #include <sys/socket.h>
45: #include <sys/syslog.h>
46:
47: #include <net/if.h>
48: #include <net/if_dl.h>
49: #include <net/if_types.h>
50: #include <net/if_media.h>
51:
52: #ifdef INET
53: #include <netinet/in.h>
54: #include <netinet/in_systm.h>
55: #include <netinet/in_var.h>
56: #include <netinet/ip.h>
57: #include <netinet/if_ether.h>
58: #endif
59:
60: #include <machine/bus.h>
61:
62: #include <dev/mii/miivar.h>
63: #include <dev/mii/mii.h>
64: #include <dev/mii/mii_bitbang.h>
65:
66: #include <dev/ic/dp8390reg.h>
67: #include <dev/ic/dp8390var.h>
68:
69: #include <dev/ic/ne2000reg.h>
70: #include <dev/ic/ne2000var.h>
71:
72: #include <dev/ic/dl10019reg.h>
73: #include <dev/ic/dl10019var.h>
74:
75: int dl10019_mii_readreg(struct device *, int, int);
76: void dl10019_mii_writereg(struct device *, int, int, int);
77: void dl10019_mii_statchg(struct device *);
78:
79: void dl10019_mii_reset(struct dp8390_softc *);
80:
81: /*
82: * MII bit-bang glue.
83: */
84: u_int32_t dl10019_mii_bitbang_read(struct device *);
85: void dl10019_mii_bitbang_write(struct device *, u_int32_t);
86:
87: const struct mii_bitbang_ops dl10019_mii_bitbang_ops = {
88: dl10019_mii_bitbang_read,
89: dl10019_mii_bitbang_write,
90: {
91: DL0_GPIO_MII_DATAOUT, /* MII_BIT_MDO */
92: DL0_GPIO_MII_DATAIN, /* MII_BIT_MDI */
93: DL0_GPIO_MII_CLK, /* MII_BIT_MDC */
94: DL0_19_GPIO_MII_DIROUT, /* MII_BIT_DIR_HOST_PHY */
95: 0, /* MII_BIT_DIR_PHY_HOST */
96: }
97: };
98:
99: const struct mii_bitbang_ops dl10022_mii_bitbang_ops = {
100: dl10019_mii_bitbang_read,
101: dl10019_mii_bitbang_write,
102: {
103: DL0_GPIO_MII_DATAOUT, /* MII_BIT_MDO */
104: DL0_GPIO_MII_DATAIN, /* MII_BIT_MDI */
105: DL0_GPIO_MII_CLK, /* MII_BIT_MDC */
106: DL0_22_GPIO_MII_DIROUT, /* MII_BIT_DIR_HOST_PHY */
107: 0, /* MII_BIT_DIR_PHY_HOST */
108: }
109: };
110:
111: void
112: dl10019_mii_reset(struct dp8390_softc *sc)
113: {
114: struct ne2000_softc *nsc = (void *) sc;
115: int i;
116:
117: if (nsc->sc_type != NE2000_TYPE_DL10022)
118: return;
119:
120: for (i = 0; i < 2; i++) {
121: bus_space_write_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO,
122: 0x08);
123: DELAY(1);
124: bus_space_write_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO,
125: 0x0c);
126: DELAY(1);
127: }
128: bus_space_write_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO, 0x00);
129: }
130:
131: void
132: dl10019_media_init(struct dp8390_softc *sc)
133: {
134: struct ifnet *ifp = &sc->sc_arpcom.ac_if;
135:
136: sc->sc_mii.mii_ifp = ifp;
137: sc->sc_mii.mii_readreg = dl10019_mii_readreg;
138: sc->sc_mii.mii_writereg = dl10019_mii_writereg;
139: sc->sc_mii.mii_statchg = dl10019_mii_statchg;
140: ifmedia_init(&sc->sc_mii.mii_media, 0, dp8390_mediachange,
141: dp8390_mediastatus);
142:
143: dl10019_mii_reset(sc);
144:
145: mii_attach(&sc->sc_dev, &sc->sc_mii, 0xffffffff, MII_PHY_ANY,
146: MII_OFFSET_ANY, 0);
147:
148: if (LIST_FIRST(&sc->sc_mii.mii_phys) == NULL) {
149: ifmedia_add(&sc->sc_mii.mii_media, IFM_ETHER|IFM_NONE, 0, NULL);
150: ifmedia_set(&sc->sc_mii.mii_media, IFM_ETHER|IFM_NONE);
151: } else
152: ifmedia_set(&sc->sc_mii.mii_media, IFM_ETHER|IFM_AUTO);
153: }
154:
155: void
156: dl10019_media_fini(struct dp8390_softc *sc)
157: {
158: mii_detach(&sc->sc_mii, MII_PHY_ANY, MII_OFFSET_ANY);
159: }
160:
161: int
162: dl10019_mediachange(struct dp8390_softc *sc)
163: {
164: mii_mediachg(&sc->sc_mii);
165: return (0);
166: }
167:
168: void
169: dl10019_mediastatus(struct dp8390_softc *sc, struct ifmediareq *ifmr)
170: {
171: mii_pollstat(&sc->sc_mii);
172: ifmr->ifm_status = sc->sc_mii.mii_media_status;
173: ifmr->ifm_active = sc->sc_mii.mii_media_active;
174: }
175:
176: void
177: dl10019_init_card(struct dp8390_softc *sc)
178: {
179: dl10019_mii_reset(sc);
180: mii_mediachg(&sc->sc_mii);
181: }
182:
183: void
184: dl10019_stop_card(struct dp8390_softc *sc)
185: {
186: mii_down(&sc->sc_mii);
187: }
188:
189: u_int32_t
190: dl10019_mii_bitbang_read(struct device *self)
191: {
192: struct dp8390_softc *sc = (void *) self;
193:
194: /* We're already in Page 0. */
195: return (bus_space_read_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO) &
196: ~DL0_GPIO_PRESERVE);
197: }
198:
199: void
200: dl10019_mii_bitbang_write(struct device *self, u_int32_t val)
201: {
202: struct dp8390_softc *sc = (void *) self;
203: u_int8_t gpio;
204:
205: /* We're already in Page 0. */
206: gpio = bus_space_read_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO);
207: bus_space_write_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO,
208: (val & ~DL0_GPIO_PRESERVE) | (gpio & DL0_GPIO_PRESERVE));
209: }
210:
211: int
212: dl10019_mii_readreg(struct device *self, int phy, int reg)
213: {
214: struct ne2000_softc *nsc = (void *) self;
215: const struct mii_bitbang_ops *ops;
216:
217: ops = (nsc->sc_type == NE2000_TYPE_DL10022) ?
218: &dl10022_mii_bitbang_ops : &dl10019_mii_bitbang_ops;
219:
220: return (mii_bitbang_readreg(self, ops, phy, reg));
221: }
222:
223: void
224: dl10019_mii_writereg(struct device *self, int phy, int reg, int val)
225: {
226: struct ne2000_softc *nsc = (void *) self;
227: const struct mii_bitbang_ops *ops;
228:
229: ops = (nsc->sc_type == NE2000_TYPE_DL10022) ?
230: &dl10022_mii_bitbang_ops : &dl10019_mii_bitbang_ops;
231:
232: mii_bitbang_writereg(self, ops, phy, reg, val);
233: }
234:
235: void
236: dl10019_mii_statchg(struct device *self)
237: {
238: struct dp8390_softc *sc = (void *) self;
239: struct ne2000_softc *nsc = (void *) self;
240:
241: /*
242: * Disable collision detection on the DL10022 if
243: * we are on a full-duplex link.
244: */
245: if (nsc->sc_type == NE2000_TYPE_DL10022) {
246: u_int8_t diag;
247:
248: if (sc->sc_mii.mii_media_active & IFM_FDX)
249: diag = DL0_DIAG_NOCOLLDETECT;
250: else
251: diag = 0;
252: bus_space_write_1(sc->sc_regt, sc->sc_regh,
253: NEDL_DL0_DIAG, diag);
254: }
255: }
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