1 /*-
2 * Copyright (c) 1994 Herb Peyerl <hpeyerl@novatel.ca>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
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 Herb Peyerl.
16 * 4. The name of Herb Peyerl may not be used to endorse or promote products
17 * derived from this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31 /*
32 * Pccard support for 3C589 by:
33 * HAMADA Naoki
34 * nao@tom-yam.or.jp
35 */
36
37 #include <sys/cdefs.h>
38 __FBSDID("$FreeBSD: releng/6.4/sys/dev/ep/if_ep_pccard.c 150238 2005-09-17 04:01:05Z imp $");
39
40 #include <sys/param.h>
41 #include <sys/systm.h>
42 #include <sys/kernel.h>
43 #include <sys/socket.h>
44 #include <sys/module.h>
45 #include <sys/bus.h>
46
47 #include <machine/bus.h>
48 #include <machine/resource.h>
49
50 #include <net/ethernet.h>
51 #include <net/if.h>
52 #include <net/if_arp.h>
53 #include <net/if_media.h>
54
55 #include <dev/ep/if_epreg.h>
56 #include <dev/ep/if_epvar.h>
57
58 #include <dev/pccard/pccardvar.h>
59 #include <dev/pccard/pccard_cis.h>
60
61 #include "pccarddevs.h"
62
63 struct ep_pccard_product
64 {
65 struct pccard_product prod;
66 int chipset;
67 };
68
69 #define EP_CHIP_589 1 /* Classic 3c5x9 chipset */
70 #define EP_CHIP_574 2 /* Roadrunner */
71
72 static const struct ep_pccard_product ep_pccard_products[] = {
73 { PCMCIA_CARD(3COM, 3C1), EP_CHIP_589 },
74 { PCMCIA_CARD(3COM, 3C562), EP_CHIP_589 },
75 { PCMCIA_CARD(3COM, 3C589), EP_CHIP_589 },
76 { PCMCIA_CARD(3COM, 3CXEM556), EP_CHIP_589 },
77 { PCMCIA_CARD(3COM, 3CXEM556INT), EP_CHIP_589 },
78 { PCMCIA_CARD(3COM, 3C574), EP_CHIP_574 },
79 { PCMCIA_CARD(3COM, 3CCFEM556BI), EP_CHIP_574 },
80 { { NULL } }
81 };
82
83 static const struct ep_pccard_product *
84 ep_pccard_lookup(device_t dev)
85 {
86 return ((const struct ep_pccard_product *)pccard_product_lookup(dev,
87 (const struct pccard_product *)ep_pccard_products,
88 sizeof(ep_pccard_products[0]), NULL));
89 }
90
91 static int
92 ep_pccard_probe(device_t dev)
93 {
94 const struct ep_pccard_product *pp;
95 int error;
96 uint32_t fcn = PCCARD_FUNCTION_UNSPEC;
97
98 /* Make sure we're a network function */
99 error = pccard_get_function(dev, &fcn);
100 if (error != 0)
101 return (error);
102 if (fcn != PCCARD_FUNCTION_NETWORK)
103 return (ENXIO);
104
105 /* Check to see if we know about this card */
106 if ((pp = ep_pccard_lookup(dev)) == NULL)
107 return EIO;
108 if (pp->prod.pp_name != NULL)
109 device_set_desc(dev, pp->prod.pp_name);
110
111 return 0;
112 }
113
114 static int
115 ep_pccard_mac(const struct pccard_tuple *tuple, void *argp)
116 {
117 uint8_t *enaddr = argp;
118 int i;
119
120 /* Code 0x88 is 3com's special cis node contianing the MAC */
121 if (tuple->code != 0x88)
122 return (0);
123
124 /* Make sure this is a sane node */
125 if (tuple->length < ETHER_ADDR_LEN)
126 return (0);
127
128 /* Copy the MAC ADDR and return success */
129 for (i = 0; i < ETHER_ADDR_LEN; i += 2) {
130 enaddr[i] = pccard_tuple_read_1(tuple, i + 1);
131 enaddr[i + 1] = pccard_tuple_read_1(tuple, i);
132 }
133 return (1);
134 }
135
136 static int
137 ep_pccard_attach(device_t dev)
138 {
139 struct ep_softc *sc = device_get_softc(dev);
140 uint16_t result;
141 int error = 0;
142 const struct ep_pccard_product *pp;
143
144 if ((pp = ep_pccard_lookup(dev)) == NULL)
145 panic("ep_pccard_attach: can't find product in attach.");
146
147 if (pp->chipset == EP_CHIP_589) {
148 sc->epb.mii_trans = 0;
149 sc->epb.cmd_off = 0;
150 } else {
151 sc->epb.mii_trans = 1;
152 sc->epb.cmd_off = 2;
153 }
154
155 if ((error = ep_alloc(dev))) {
156 device_printf(dev, "ep_alloc() failed! (%d)\n", error);
157 goto bad;
158 }
159
160 /* ROM size = 0, ROM base = 0 */
161 /* For now, ignore AUTO SELECT feature of 3C589B and later. */
162 error = ep_get_e(sc, EEPROM_ADDR_CFG, &result);
163 CSR_WRITE_2(sc, EP_W0_ADDRESS_CFG, result & 0xc000);
164
165 /*
166 * Fake IRQ must be 3 for 3C589 and 3C589B. 3C589D and newer
167 * ignore this value. 3C589C is unknown, as are the other
168 * cards supported by this driver, but it appears to never hurt
169 * and always helps.
170 */
171 SET_IRQ(sc, 3);
172 CSR_WRITE_2(sc, EP_W0_PRODUCT_ID, sc->epb.prod_id);
173
174 if (sc->epb.mii_trans) {
175 /*
176 * turn on the MII transciever
177 */
178 GO_WINDOW(sc, 3);
179 CSR_WRITE_2(sc, EP_W3_OPTIONS, 0x8040);
180 DELAY(1000);
181 CSR_WRITE_2(sc, EP_W3_OPTIONS, 0xc040);
182 CSR_WRITE_2(sc, EP_COMMAND, RX_RESET);
183 CSR_WRITE_2(sc, EP_COMMAND, TX_RESET);
184 EP_BUSY_WAIT(sc);
185 DELAY(1000);
186 CSR_WRITE_2(sc, EP_W3_OPTIONS, 0x8040);
187 } else
188 ep_get_media(sc);
189
190 /*
191 * The 3C562 (a-c revisions) stores the MAC in the CIS in a
192 * way that's unique to 3com. If we have one of these cards,
193 * scan the CIS for that MAC address, and use it if we find
194 * it. The NetBSD driver says that the ROADRUNNER chips also
195 * do this, which may be true, but none of the cards that I
196 * have include this TUPLE. Always prefer the MAC addr in the
197 * CIS tuple to the one returned by the card, as it appears that
198 * only those cards that need it have this special tuple.
199 */
200 if (pccard_cis_scan(dev, ep_pccard_mac, sc->eaddr))
201 sc->stat |= F_ENADDR_SKIP;
202 if ((error = ep_attach(sc))) {
203 device_printf(dev, "ep_attach() failed! (%d)\n", error);
204 goto bad;
205 }
206 if ((error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE,
207 ep_intr, sc, &sc->ep_intrhand))) {
208 device_printf(dev, "bus_setup_intr() failed! (%d)\n", error);
209 goto bad;
210 }
211 return (0);
212 bad:
213 ep_free(dev);
214 return (error);
215 }
216
217 static device_method_t ep_pccard_methods[] = {
218 /* Device interface */
219 DEVMETHOD(device_probe, ep_pccard_probe),
220 DEVMETHOD(device_attach, ep_pccard_attach),
221 DEVMETHOD(device_detach, ep_detach),
222
223 {0, 0}
224 };
225
226 static driver_t ep_pccard_driver = {
227 "ep",
228 ep_pccard_methods,
229 sizeof(struct ep_softc),
230 };
231
232 extern devclass_t ep_devclass;
233
234 DRIVER_MODULE(ep, pccard, ep_pccard_driver, ep_devclass, 0, 0);
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