1 | /* $NetBSD: dl10019.c,v 1.12 2012/07/22 14:32:56 matt Exp $ */ |
2 | |
3 | /*- |
4 | * Copyright (c) 2001 The NetBSD Foundation, Inc. |
5 | * All rights reserved. |
6 | * |
7 | * This code is derived from software contributed to The NetBSD Foundation |
8 | * by Jason R. Thorpe. |
9 | * |
10 | * Redistribution and use in source and binary forms, with or without |
11 | * modification, are permitted provided that the following conditions |
12 | * are met: |
13 | * 1. Redistributions of source code must retain the above copyright |
14 | * notice, this list of conditions and the following disclaimer. |
15 | * 2. Redistributions in binary form must reproduce the above copyright |
16 | * notice, this list of conditions and the following disclaimer in the |
17 | * documentation and/or other materials provided with the distribution. |
18 | * |
19 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
20 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
21 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
22 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
23 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
24 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
25 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
26 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
27 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
28 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
29 | * POSSIBILITY OF SUCH DAMAGE. |
30 | */ |
31 | |
32 | #include <sys/cdefs.h> |
33 | __KERNEL_RCSID(0, "$NetBSD: dl10019.c,v 1.12 2012/07/22 14:32:56 matt Exp $" ); |
34 | |
35 | #include <sys/param.h> |
36 | #include <sys/systm.h> |
37 | #include <sys/mbuf.h> |
38 | #include <sys/syslog.h> |
39 | #include <sys/socket.h> |
40 | #include <sys/device.h> |
41 | |
42 | #include <net/if.h> |
43 | #include <net/if_ether.h> |
44 | #include <net/if_media.h> |
45 | |
46 | #include <sys/bus.h> |
47 | #include <sys/intr.h> |
48 | |
49 | #include <dev/mii/miivar.h> |
50 | #include <dev/mii/mii.h> |
51 | #include <dev/mii/mii_bitbang.h> |
52 | |
53 | #include <dev/ic/dp8390reg.h> |
54 | #include <dev/ic/dp8390var.h> |
55 | |
56 | #include <dev/ic/ne2000reg.h> |
57 | #include <dev/ic/ne2000var.h> |
58 | |
59 | #include <dev/ic/dl10019reg.h> |
60 | #include <dev/ic/dl10019var.h> |
61 | |
62 | int dl10019_mii_readreg(device_t, int, int); |
63 | void dl10019_mii_writereg(device_t, int, int, int); |
64 | void dl10019_mii_statchg(struct ifnet *); |
65 | |
66 | /* |
67 | * MII bit-bang glue. |
68 | */ |
69 | u_int32_t dl10019_mii_bitbang_read(device_t); |
70 | void dl10019_mii_bitbang_write(device_t, u_int32_t); |
71 | |
72 | const struct mii_bitbang_ops dl10019_mii_bitbang_ops = { |
73 | dl10019_mii_bitbang_read, |
74 | dl10019_mii_bitbang_write, |
75 | { |
76 | DL0_GPIO_MII_DATAOUT, /* MII_BIT_MDO */ |
77 | DL0_GPIO_MII_DATAIN, /* MII_BIT_MDI */ |
78 | DL0_GPIO_MII_CLK, /* MII_BIT_MDC */ |
79 | DL0_19_GPIO_MII_DIROUT, /* MII_BIT_DIR_HOST_PHY */ |
80 | 0, /* MII_BIT_DIR_PHY_HOST */ |
81 | } |
82 | }; |
83 | |
84 | const struct mii_bitbang_ops dl10022_mii_bitbang_ops = { |
85 | dl10019_mii_bitbang_read, |
86 | dl10019_mii_bitbang_write, |
87 | { |
88 | DL0_GPIO_MII_DATAOUT, /* MII_BIT_MDO */ |
89 | DL0_GPIO_MII_DATAIN, /* MII_BIT_MDI */ |
90 | DL0_GPIO_MII_CLK, /* MII_BIT_MDC */ |
91 | DL0_22_GPIO_MII_DIROUT, /* MII_BIT_DIR_HOST_PHY */ |
92 | 0, /* MII_BIT_DIR_PHY_HOST */ |
93 | } |
94 | }; |
95 | |
96 | static void |
97 | dl10019_mii_reset(struct dp8390_softc *sc) |
98 | { |
99 | struct ne2000_softc *nsc = (void *) sc; |
100 | int i; |
101 | |
102 | if (nsc->sc_type != NE2000_TYPE_DL10022) |
103 | return; |
104 | |
105 | for (i = 0; i < 2; i++) { |
106 | bus_space_write_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO, |
107 | 0x08); |
108 | delay(1); |
109 | bus_space_write_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO, |
110 | 0x0c); |
111 | delay(1); |
112 | } |
113 | bus_space_write_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO, 0x00); |
114 | } |
115 | |
116 | void |
117 | dl10019_media_init(struct dp8390_softc *sc) |
118 | { |
119 | struct ifnet *ifp = &sc->sc_ec.ec_if; |
120 | |
121 | sc->sc_mii.mii_ifp = ifp; |
122 | sc->sc_mii.mii_readreg = dl10019_mii_readreg; |
123 | sc->sc_mii.mii_writereg = dl10019_mii_writereg; |
124 | sc->sc_mii.mii_statchg = dl10019_mii_statchg; |
125 | ifmedia_init(&sc->sc_mii.mii_media, IFM_IMASK, dp8390_mediachange, |
126 | dp8390_mediastatus); |
127 | |
128 | dl10019_mii_reset(sc); |
129 | |
130 | mii_attach(sc->sc_dev, &sc->sc_mii, 0xffffffff, MII_PHY_ANY, |
131 | MII_OFFSET_ANY, 0); |
132 | |
133 | if (LIST_FIRST(&sc->sc_mii.mii_phys) == NULL) { |
134 | ifmedia_add(&sc->sc_mii.mii_media, IFM_ETHER|IFM_NONE, 0, NULL); |
135 | ifmedia_set(&sc->sc_mii.mii_media, IFM_ETHER|IFM_NONE); |
136 | } else |
137 | ifmedia_set(&sc->sc_mii.mii_media, IFM_ETHER|IFM_AUTO); |
138 | } |
139 | |
140 | void |
141 | dl10019_media_fini(struct dp8390_softc *sc) |
142 | { |
143 | |
144 | mii_detach(&sc->sc_mii, MII_PHY_ANY, MII_OFFSET_ANY); |
145 | } |
146 | |
147 | int |
148 | dl10019_mediachange(struct dp8390_softc *sc) |
149 | { |
150 | int rc; |
151 | |
152 | if ((rc = mii_mediachg(&sc->sc_mii)) == ENXIO) |
153 | return 0; |
154 | return rc; |
155 | } |
156 | |
157 | void |
158 | dl10019_mediastatus(struct dp8390_softc *sc, struct ifmediareq *ifmr) |
159 | { |
160 | |
161 | mii_pollstat(&sc->sc_mii); |
162 | ifmr->ifm_status = sc->sc_mii.mii_media_status; |
163 | ifmr->ifm_active = sc->sc_mii.mii_media_active; |
164 | } |
165 | |
166 | void |
167 | dl10019_init_card(struct dp8390_softc *sc) |
168 | { |
169 | |
170 | dl10019_mii_reset(sc); |
171 | mii_mediachg(&sc->sc_mii); |
172 | } |
173 | |
174 | void |
175 | dl10019_stop_card(struct dp8390_softc *sc) |
176 | { |
177 | |
178 | mii_down(&sc->sc_mii); |
179 | } |
180 | |
181 | u_int32_t |
182 | dl10019_mii_bitbang_read(device_t self) |
183 | { |
184 | struct dp8390_softc *sc = device_private(self); |
185 | |
186 | /* We're already in Page 0. */ |
187 | return (bus_space_read_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO) & |
188 | ~DL0_GPIO_PRESERVE); |
189 | } |
190 | |
191 | void |
192 | dl10019_mii_bitbang_write(device_t self, u_int32_t val) |
193 | { |
194 | struct dp8390_softc *sc = device_private(self); |
195 | u_int8_t gpio; |
196 | |
197 | /* We're already in Page 0. */ |
198 | gpio = bus_space_read_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO); |
199 | bus_space_write_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO, |
200 | (val & ~DL0_GPIO_PRESERVE) | (gpio & DL0_GPIO_PRESERVE)); |
201 | } |
202 | |
203 | int |
204 | dl10019_mii_readreg(device_t self, int phy, int reg) |
205 | { |
206 | struct ne2000_softc *nsc = device_private(self); |
207 | const struct mii_bitbang_ops *ops; |
208 | int val; |
209 | |
210 | ops = (nsc->sc_type == NE2000_TYPE_DL10022) ? |
211 | &dl10022_mii_bitbang_ops : &dl10019_mii_bitbang_ops; |
212 | |
213 | val = mii_bitbang_readreg(self, ops, phy, reg); |
214 | |
215 | return (val); |
216 | } |
217 | |
218 | void |
219 | dl10019_mii_writereg(device_t self, int phy, int reg, int val) |
220 | { |
221 | struct ne2000_softc *nsc = device_private(self); |
222 | const struct mii_bitbang_ops *ops; |
223 | |
224 | ops = (nsc->sc_type == NE2000_TYPE_DL10022) ? |
225 | &dl10022_mii_bitbang_ops : &dl10019_mii_bitbang_ops; |
226 | |
227 | mii_bitbang_writereg(self, ops, phy, reg, val); |
228 | } |
229 | |
230 | void |
231 | dl10019_mii_statchg(struct ifnet *ifp) |
232 | { |
233 | struct ne2000_softc *nsc = ifp->if_softc; |
234 | struct dp8390_softc *sc = &nsc->sc_dp8390; |
235 | |
236 | /* |
237 | * Disable collision detection on the DL10022 if |
238 | * we are on a full-duplex link. |
239 | */ |
240 | if (nsc->sc_type == NE2000_TYPE_DL10022) { |
241 | u_int8_t diag; |
242 | |
243 | if (sc->sc_mii.mii_media_active & IFM_FDX) |
244 | diag = DL0_DIAG_NOCOLLDETECT; |
245 | else |
246 | diag = 0; |
247 | bus_space_write_1(sc->sc_regt, sc->sc_regh, |
248 | NEDL_DL0_DIAG, diag); |
249 | } |
250 | } |
251 | |