if_fe_pccard.c revision 67158 
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 67158 2000-10-15 09:51:49Z phk $
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/systm.h>
33#include <sys/module.h>
34#include <machine/clock.h>
35
36#include <sys/bus.h>
37#include <machine/bus.h>
38#include <machine/resource.h>
39
40#include <net/ethernet.h>
41#include <net/if.h>
42#include <net/if_mib.h>
43#include <net/if_media.h>
44
45#include <netinet/in.h>
46#include <netinet/if_ether.h>
47
48#include <i386/isa/ic/mb86960.h>
49#include <dev/fe/if_fereg.h>
50#include <dev/fe/if_fevar.h>
51
52#include <dev/pccard/pccardvar.h>
53#include <pccard/cardinfo.h>
54
55/*
56 *	PC-Card (PCMCIA) specific code.
57 */
58static int fe_pccard_probe(device_t);
59static int fe_pccard_attach(device_t);
60static int fe_pccard_detach(device_t);
61
62static device_method_t fe_pccard_methods[] = {
63	/* Device interface */
64	DEVMETHOD(device_probe,		fe_pccard_probe),
65	DEVMETHOD(device_attach,	fe_pccard_attach),
66	DEVMETHOD(device_detach,	fe_pccard_detach),
67
68	{ 0, 0 }
69};
70
71static driver_t fe_pccard_driver = {
72	"fe",
73	fe_pccard_methods,
74	sizeof (struct fe_softc)
75};
76
77DRIVER_MODULE(fe, pccard, fe_pccard_driver, fe_devclass, 0, 0);
78
79
80static int fe_probe_mbh(device_t);
81static int fe_probe_tdk(device_t);
82
83/*
84 *      Initialize the device - called from Slot manager.
85 */
86static int
87fe_pccard_probe(device_t dev)
88{
89	struct fe_softc *sc;
90	int error;
91
92	/* Prepare for the device probe process.  */
93	sc = device_get_softc(dev);
94	sc->sc_unit = device_get_unit(dev);
95
96	pccard_get_ether(dev, sc->sc_enaddr);
97
98	/* Probe for supported cards.  */
99	if ((error = fe_probe_mbh(dev)) == 0)
100		goto end;
101	fe_release_resource(dev);
102
103	if ((error = fe_probe_tdk(dev)) == 0)
104		goto end;
105	fe_release_resource(dev);
106
107end:
108	if (error == 0)
109		error = fe_alloc_irq(dev, 0);
110
111	fe_release_resource(dev);
112	return (error);
113}
114
115static int
116fe_pccard_attach(device_t dev)
117{
118	struct fe_softc *sc = device_get_softc(dev);
119
120	if (sc->port_used)
121		fe_alloc_port(dev, sc->port_used);
122	fe_alloc_irq(dev, 0);
123
124	return fe_attach(dev);
125}
126
127/*
128 *	feunload - unload the driver and clear the table.
129 *	XXX TODO:
130 *	This is usually called when the card is ejected, but
131 *	can be caused by a modunload of a controller driver.
132 *	The idea is to reset the driver's view of the device
133 *	and ensure that any driver entry points such as
134 *	read and write do not hang.
135 */
136static int
137fe_pccard_detach(device_t dev)
138{
139	struct fe_softc *sc = device_get_softc(dev);
140	struct ifnet *ifp = &sc->arpcom.ac_if;
141
142	fe_stop(sc);
143	ether_ifdetach(ifp, ETHER_BPF_SUPPORTED);
144	bus_teardown_intr(dev, sc->irq_res, sc->irq_handle);
145	fe_release_resource(dev);
146
147	return 0;
148}
149
150
151/*
152 * Probe and initialization for Fujitsu MBH10302 PCMCIA Ethernet interface.
153 * Note that this is for 10302 only; MBH10304 is handled by fe_probe_tdk().
154 */
155static void
156fe_init_mbh(struct fe_softc *sc)
157{
158	/* Minimal initialization of 86960.  */
159	DELAY(200);
160	fe_outb(sc, FE_DLCR6, sc->proto_dlcr6 | FE_D6_DLC_DISABLE);
161	DELAY(200);
162
163	/* Disable all interrupts.  */
164	fe_outb(sc, FE_DLCR2, 0);
165	fe_outb(sc, FE_DLCR3, 0);
166
167	/* Enable master interrupt flag.  */
168	fe_outb(sc, FE_MBH0, FE_MBH0_MAGIC | FE_MBH0_INTR_ENABLE);
169}
170
171static int
172fe_probe_mbh(device_t dev)
173{
174	struct fe_softc *sc = device_get_softc(dev);
175
176	static struct fe_simple_probe_struct probe_table [] = {
177		{ FE_DLCR2, 0x58, 0x00 },
178		{ FE_DLCR4, 0x08, 0x00 },
179		{ FE_DLCR6, 0xFF, 0xB6 },
180		{ 0 }
181	};
182
183	/* MBH10302 occupies 32 I/O addresses. */
184	if (fe_alloc_port(dev, 32))
185		return ENXIO;
186
187	/* Ethernet MAC address should *NOT* have been given by pccardd,
188	   if this is a true MBH10302; i.e., Ethernet address must be
189	   "all-zero" upon entry.  */
190	if (sc->sc_enaddr[0] || sc->sc_enaddr[1] || sc->sc_enaddr[2] ||
191	    sc->sc_enaddr[3] || sc->sc_enaddr[4] || sc->sc_enaddr[5])
192		return ENXIO;
193
194	/* Fill the softc struct with default values.  */
195	fe_softc_defaults(sc);
196
197	/*
198	 * See if MBH10302 is on its address.
199	 * I'm not sure the following probe code works.  FIXME.
200	 */
201	if (!fe_simple_probe(sc, probe_table))
202		return ENXIO;
203
204	/* Get our station address from EEPROM.  */
205	fe_inblk(sc, FE_MBH10, sc->sc_enaddr, ETHER_ADDR_LEN);
206
207	/* Make sure we got a valid station address.  */
208	if (!valid_Ether_p(sc->sc_enaddr, 0))
209		return ENXIO;
210
211	/* Determine the card type.  */
212	sc->type = FE_TYPE_MBH;
213	sc->typestr = "MBH10302 (PCMCIA)";
214
215	/* We seems to need our own IDENT bits...  FIXME.  */
216	sc->proto_dlcr7 = FE_D7_BYTSWP_LH | FE_D7_IDENT_NICE;
217
218	/* Setup hooks.  We need a special initialization procedure.  */
219	sc->init = fe_init_mbh;
220
221	return 0;
222}
223
224/*
225 * Probe and initialization for TDK/CONTEC PCMCIA Ethernet interface.
226 * by MASUI Kenji <masui@cs.titech.ac.jp>
227 *
228 * (Contec uses TDK Ethenet chip -- hosokawa)
229 *
230 * This version of fe_probe_tdk has been rewrote to handle
231 * *generic* PC card implementation of Fujitsu MB8696x family.  The
232 * name _tdk is just for a historical reason. :-)
233 */
234static int
235fe_probe_tdk (device_t dev)
236{
237	struct fe_softc *sc = device_get_softc(dev);
238
239        static struct fe_simple_probe_struct probe_table [] = {
240                { FE_DLCR2, 0x50, 0x00 },
241                { FE_DLCR4, 0x08, 0x00 },
242            /*  { FE_DLCR5, 0x80, 0x00 },       Does not work well.  */
243                { 0 }
244        };
245
246        /* C-NET(PC)C occupies 16 I/O addresses. */
247	if (fe_alloc_port(dev, 16))
248		return ENXIO;
249
250	/* Fill the softc struct with default values.  */
251	fe_softc_defaults(sc);
252
253        /*
254         * See if C-NET(PC)C is on its address.
255         */
256        if (!fe_simple_probe(sc, probe_table))
257		return ENXIO;
258
259        /* Determine the card type.  */
260	sc->type = FE_TYPE_TDK;
261        sc->typestr = "Generic MB8696x/78Q837x Ethernet (PCMCIA)";
262
263        /* Make sure we got a valid station address.  */
264        if (!valid_Ether_p(sc->sc_enaddr, 0))
265		return ENXIO;
266
267        return 0;
268}
269