if_fe_pccard.c revision 66235 
1/*
2 * All Rights Reserved, Copyright (C) Fujitsu Limited 1995
3 *
4 * This software may be used, modified, copied, distributed, and sold, in
5 * both source and binary form provided that the above copyright, these
6 * terms and the following disclaimer are retained.  The name of the author
7 * and/or the contributor may not be used to endorse or promote products
8 * derived from this software without specific prior written permission.
9 *
10 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND THE CONTRIBUTOR ``AS IS'' AND
11 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
12 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
13 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR THE CONTRIBUTOR BE LIABLE
14 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
15 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
16 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION.
17 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
18 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
19 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
20 * SUCH DAMAGE.
21 *
22 * $FreeBSD: head/sys/dev/fe/if_fe_pccard.c 66235 2000-09-22 09:59:23Z nyan $
23 */
24
25#include "opt_fe.h"
26#include "opt_inet.h"
27#include "opt_ipx.h"
28
29#include <sys/param.h>
30#include <sys/kernel.h>
31#include <sys/socket.h>
32#include <sys/module.h>
33#include <machine/clock.h>
34
35#include <sys/bus.h>
36#include <machine/bus.h>
37#include <machine/resource.h>
38
39#include <net/ethernet.h>
40#include <net/if.h>
41#include <net/if_mib.h>
42#include <net/if_media.h>
43
44#include <netinet/in.h>
45#include <netinet/if_ether.h>
46
47#include <i386/isa/ic/mb86960.h>
48#include <dev/fe/if_fereg.h>
49#include <dev/fe/if_fevar.h>
50
51#include <dev/pccard/pccardvar.h>
52#include <pccard/cardinfo.h>
53
54/*
55 *	PC-Card (PCMCIA) specific code.
56 */
57static int fe_pccard_probe(device_t);
58static int fe_pccard_attach(device_t);
59static int fe_pccard_detach(device_t);
60
61static device_method_t fe_pccard_methods[] = {
62	/* Device interface */
63	DEVMETHOD(device_probe,		fe_pccard_probe),
64	DEVMETHOD(device_attach,	fe_pccard_attach),
65	DEVMETHOD(device_detach,	fe_pccard_detach),
66
67	{ 0, 0 }
68};
69
70static driver_t fe_pccard_driver = {
71	"fe",
72	fe_pccard_methods,
73	sizeof (struct fe_softc)
74};
75
76DRIVER_MODULE(fe, pccard, fe_pccard_driver, fe_devclass, 0, 0);
77
78
79static int fe_probe_mbh(device_t);
80static int fe_probe_tdk(device_t);
81
82/*
83 *      Initialize the device - called from Slot manager.
84 */
85static int
86fe_pccard_probe(device_t dev)
87{
88	struct fe_softc *sc;
89	int error;
90
91	/* Prepare for the device probe process.  */
92	sc = device_get_softc(dev);
93	sc->sc_unit = device_get_unit(dev);
94
95	pccard_get_ether(dev, sc->sc_enaddr);
96
97	/* Probe for supported cards.  */
98	if ((error = fe_probe_mbh(dev)) == 0)
99		goto end;
100	fe_release_resource(dev);
101
102	if ((error = fe_probe_tdk(dev)) == 0)
103		goto end;
104	fe_release_resource(dev);
105
106end:
107	if (error == 0)
108		error = fe_alloc_irq(dev, 0);
109
110	fe_release_resource(dev);
111	return (error);
112}
113
114static int
115fe_pccard_attach(device_t dev)
116{
117	struct fe_softc *sc = device_get_softc(dev);
118
119	if (sc->port_used)
120		fe_alloc_port(dev, sc->port_used);
121	fe_alloc_irq(dev, 0);
122
123	return fe_attach(dev);
124}
125
126/*
127 *	feunload - unload the driver and clear the table.
128 *	XXX TODO:
129 *	This is usually called when the card is ejected, but
130 *	can be caused by a modunload of a controller driver.
131 *	The idea is to reset the driver's view of the device
132 *	and ensure that any driver entry points such as
133 *	read and write do not hang.
134 */
135static int
136fe_pccard_detach(device_t dev)
137{
138	struct fe_softc *sc = device_get_softc(dev);
139	struct ifnet *ifp = &sc->arpcom.ac_if;
140
141	fe_stop(sc);
142	ether_ifdetach(ifp, ETHER_BPF_SUPPORTED);
143	bus_teardown_intr(dev, sc->irq_res, sc->irq_handle);
144	fe_release_resource(dev);
145
146	return 0;
147}
148
149
150/*
151 * Probe and initialization for Fujitsu MBH10302 PCMCIA Ethernet interface.
152 * Note that this is for 10302 only; MBH10304 is handled by fe_probe_tdk().
153 */
154static void
155fe_init_mbh(struct fe_softc *sc)
156{
157	/* Minimal initialization of 86960.  */
158	DELAY(200);
159	fe_outb(sc, FE_DLCR6, sc->proto_dlcr6 | FE_D6_DLC_DISABLE);
160	DELAY(200);
161
162	/* Disable all interrupts.  */
163	fe_outb(sc, FE_DLCR2, 0);
164	fe_outb(sc, FE_DLCR3, 0);
165
166	/* Enable master interrupt flag.  */
167	fe_outb(sc, FE_MBH0, FE_MBH0_MAGIC | FE_MBH0_INTR_ENABLE);
168}
169
170static int
171fe_probe_mbh(device_t dev)
172{
173	struct fe_softc *sc = device_get_softc(dev);
174
175	static struct fe_simple_probe_struct probe_table [] = {
176		{ FE_DLCR2, 0x58, 0x00 },
177		{ FE_DLCR4, 0x08, 0x00 },
178		{ FE_DLCR6, 0xFF, 0xB6 },
179		{ 0 }
180	};
181
182	/* MBH10302 occupies 32 I/O addresses. */
183	if (fe_alloc_port(dev, 32))
184		return ENXIO;
185
186	/* Ethernet MAC address should *NOT* have been given by pccardd,
187	   if this is a true MBH10302; i.e., Ethernet address must be
188	   "all-zero" upon entry.  */
189	if (sc->sc_enaddr[0] || sc->sc_enaddr[1] || sc->sc_enaddr[2] ||
190	    sc->sc_enaddr[3] || sc->sc_enaddr[4] || sc->sc_enaddr[5])
191		return ENXIO;
192
193	/* Fill the softc struct with default values.  */
194	fe_softc_defaults(sc);
195
196	/*
197	 * See if MBH10302 is on its address.
198	 * I'm not sure the following probe code works.  FIXME.
199	 */
200	if (!fe_simple_probe(sc, probe_table))
201		return ENXIO;
202
203	/* Get our station address from EEPROM.  */
204	fe_inblk(sc, FE_MBH10, sc->sc_enaddr, ETHER_ADDR_LEN);
205
206	/* Make sure we got a valid station address.  */
207	if (!valid_Ether_p(sc->sc_enaddr, 0))
208		return ENXIO;
209
210	/* Determine the card type.  */
211	sc->type = FE_TYPE_MBH;
212	sc->typestr = "MBH10302 (PCMCIA)";
213
214	/* We seems to need our own IDENT bits...  FIXME.  */
215	sc->proto_dlcr7 = FE_D7_BYTSWP_LH | FE_D7_IDENT_NICE;
216
217	/* Setup hooks.  We need a special initialization procedure.  */
218	sc->init = fe_init_mbh;
219
220	return 0;
221}
222
223/*
224 * Probe and initialization for TDK/CONTEC PCMCIA Ethernet interface.
225 * by MASUI Kenji <masui@cs.titech.ac.jp>
226 *
227 * (Contec uses TDK Ethenet chip -- hosokawa)
228 *
229 * This version of fe_probe_tdk has been rewrote to handle
230 * *generic* PC card implementation of Fujitsu MB8696x family.  The
231 * name _tdk is just for a historical reason. :-)
232 */
233static int
234fe_probe_tdk (device_t dev)
235{
236	struct fe_softc *sc = device_get_softc(dev);
237
238        static struct fe_simple_probe_struct probe_table [] = {
239                { FE_DLCR2, 0x50, 0x00 },
240                { FE_DLCR4, 0x08, 0x00 },
241            /*  { FE_DLCR5, 0x80, 0x00 },       Does not work well.  */
242                { 0 }
243        };
244
245        /* C-NET(PC)C occupies 16 I/O addresses. */
246	if (fe_alloc_port(dev, 16))
247		return ENXIO;
248
249	/* Fill the softc struct with default values.  */
250	fe_softc_defaults(sc);
251
252        /*
253         * See if C-NET(PC)C is on its address.
254         */
255        if (!fe_simple_probe(sc, probe_table))
256		return ENXIO;
257
258        /* Determine the card type.  */
259	sc->type = FE_TYPE_TDK;
260        sc->typestr = "Generic MB8696x/78Q837x Ethernet (PCMCIA)";
261
262        /* Make sure we got a valid station address.  */
263        if (!valid_Ether_p(sc->sc_enaddr, 0))
264		return ENXIO;
265
266        return 0;
267}
268