2 * Copyright (c) 1994 Herb Peyerl <hpeyerl@novatel.ca>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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.
30 * $FreeBSD: src/sys/dev/ep/if_ep_isa.c,v 1.8.2.1 2000/12/16 03:47:57 nyan Exp $
31 * $DragonFly: src/sys/dev/netif/ep/if_ep_isa.c,v 1.12 2006/08/06 12:49:05 swildner Exp $
34 #include <sys/param.h>
35 #include <sys/systm.h>
36 #include <sys/kernel.h>
37 #include <sys/socket.h>
39 #include <sys/module.h>
42 #include <machine/bus.h>
43 #include <machine/resource.h>
47 #include <net/if_arp.h>
48 #include <net/if_media.h>
50 #include <machine/clock.h>
52 #include <bus/isa/isavar.h>
53 #include <bus/isa/pnpvar.h>
57 #include "../elink_layer/elink.h"
59 static u_int16_t get_eeprom_data (int, int);
61 static int ep_isa_identify (driver_t *, device_t);
62 static int ep_isa_probe (device_t);
63 static int ep_isa_attach (device_t);
69 const char * ep_isa_match_id (u_int32_t, struct isa_ident *);
71 #define ISA_ID_3C509_XXX 0x0506d509
72 #define ISA_ID_3C509_TP 0x506d5090
73 #define ISA_ID_3C509_BNC 0x506d5091
74 #define ISA_ID_3C509_COMBO 0x506d5094
75 #define ISA_ID_3C509_TPO 0x506d5095
76 #define ISA_ID_3C509_TPC 0x506d5098
78 static struct isa_ident ep_isa_devs[] = {
79 { ISA_ID_3C509_TP, "3Com 3C509-TP EtherLink III" },
80 { ISA_ID_3C509_BNC, "3Com 3C509-BNC EtherLink III" },
81 { ISA_ID_3C509_COMBO, "3Com 3C509-Combo EtherLink III" },
82 { ISA_ID_3C509_TPO, "3Com 3C509-TPO EtherLink III" },
83 { ISA_ID_3C509_TPC, "3Com 3C509-TPC EtherLink III" },
87 static struct isa_pnp_id ep_ids[] = {
88 { 0x90506d50, "3Com 3C509B-TP EtherLink III (PnP)" }, /* TCM5090 */
89 { 0x91506d50, "3Com 3C509B-BNC EtherLink III (PnP)" },/* TCM5091 */
90 { 0x94506d50, "3Com 3C509B-Combo EtherLink III (PnP)" },/* TCM5094 */
91 { 0x95506d50, "3Com 3C509B-TPO EtherLink III (PnP)" },/* TCM5095 */
92 { 0x98506d50, "3Com 3C509B-TPC EtherLink III (PnP)" },/* TCM5098 */
93 { 0xf780d041, NULL }, /* PNP80f7 */
98 * We get eeprom data from the id_port given an offset into the eeprom.
99 * Basically; after the ID_sequence is sent to all of the cards; they enter
100 * the ID_CMD state where they will accept command requests. 0x80-0xbf loads
101 * the eeprom data. We then read the port 16 times and with every read; the
102 * cards check for contention (ie: if one card writes a 0 bit and another
103 * writes a 1 bit then the host sees a 0. At the end of the cycle; each card
104 * compares the data on the bus; if there is a difference then that card goes
105 * into ID_WAIT state again). In the meantime; one bit of data is returned in
106 * the AX register which is conveniently returned to us by inb(). Hence; we
107 * read 16 times getting one bit of data with each read.
111 get_eeprom_data(int id_port, int offset)
116 outb(id_port, EEPROM_CMD_RD|offset);
117 DELAY(BIT_DELAY_MULTIPLE * 1000);
118 for (i = 0; i < 16; i++) {
120 data = (data << 1) | (inw(id_port) & 1);
126 ep_isa_match_id(u_int32_t id, struct isa_ident *isa_devs)
128 struct isa_ident * i = isa_devs;
129 while(i->name != NULL) {
135 * If we see a card that is likely to be a 3c509
136 * return something so that it will work; be annoying
137 * so that the user will tell us about it though.
139 if ((id >> 4) == ISA_ID_3C509_XXX) {
140 return ("Unknown 3c509; notify maintainer!");
146 ep_isa_identify(driver_t *driver, device_t parent)
148 int tag = EP_LAST_TAG;
160 * Rescans not currently supported.
162 if (device_get_state(parent) == DS_ATTACHED)
166 * Check for the existance of the EISA bus.
168 outb(ELINK_ID_PORT, 0);
169 outb(ELINK_ID_PORT, 0);
170 elink_idseq(ELINK_509_POLY);
173 DELAY(DELAY_MULTIPLE * 10000);
175 for (i = 0; i < EP_MAX_BOARDS; i++) {
177 outb(ELINK_ID_PORT, 0);
178 outb(ELINK_ID_PORT, 0);
179 elink_idseq(ELINK_509_POLY);
182 /* For the first probe, clear all
183 * board's tag registers.
184 * Otherwise kill off already-found
185 * boards. -- linux 3c509.c
188 outb(ELINK_ID_PORT, 0xd0);
190 outb(ELINK_ID_PORT, 0xd8);
193 /* Get out of loop if we're out of cards. */
194 data = get_eeprom_data(ELINK_ID_PORT, EEPROM_MFG_ID);
195 if (data != MFG_ID) {
199 /* resolve contention using the Ethernet address */
200 for (j = 0; j < 3; j++) {
201 get_eeprom_data(ELINK_ID_PORT, j);
205 * Construct an 'isa_id' in 'EISA'
208 data = get_eeprom_data(ELINK_ID_PORT, EEPROM_MFG_ID);
209 isa_id = (htons(data) << 16);
210 data = get_eeprom_data(ELINK_ID_PORT, EEPROM_PROD_ID);
211 isa_id |= htons(data);
213 /* Find known ISA boards */
214 desc = ep_isa_match_id(isa_id, ep_isa_devs);
217 device_printf(parent, "if_ep: unknown ID 0x%08x\n",
224 data = get_eeprom_data(ELINK_ID_PORT, EEPROM_RESOURCE_CFG);
227 /* Retreive IOPORT */
228 data = get_eeprom_data(ELINK_ID_PORT, EEPROM_ADDR_CFG);
229 ioport = (((data & 0x1f) << 4) + 0x200);
231 /* Test for an adapter with PnP support. */
232 data = get_eeprom_data(ELINK_ID_PORT, EEPROM_CAP);
233 if (data == CAP_ISA) {
234 data = get_eeprom_data(ELINK_ID_PORT, EEPROM_INT_CONFIG_1);
235 if (data & ICW1_IAS_PNP) {
237 device_printf(parent, "if_ep: <%s> at 0x%03x in PnP mode!\n",
240 /* Set the adaptor tag so that the next card can be found. */
241 outb(ELINK_ID_PORT, tag--);
246 /* Set the adaptor tag so that the next card can be found. */
247 outb(ELINK_ID_PORT, tag--);
249 /* Activate the adaptor at the EEPROM location. */
250 outb(ELINK_ID_PORT, ACTIVATE_ADAPTER_TO_CONFIG);
252 /* Test for an adapter in TEST mode. */
253 outw(ioport + EP_COMMAND, WINDOW_SELECT | 0);
254 data = inw(ioport + EP_W0_EEPROM_COMMAND);
255 if (data & EEPROM_TST_MODE) {
256 device_printf(parent, "if_ep: <%s> at port 0x%03x in TEST mode! Erase pencil mark.\n",
261 child = BUS_ADD_CHILD(parent, parent,
262 ISA_ORDER_SPECULATIVE, "ep", -1);
263 device_set_desc_copy(child, desc);
264 device_set_driver(child, driver);
265 bus_set_resource(child, SYS_RES_IRQ, 0, irq, 1);
266 bus_set_resource(child, SYS_RES_IOPORT, 0, ioport, EP_IOSIZE);
269 device_printf(parent, "if_ep: <%s> at port 0x%03x-0x%03x irq %d\n",
270 desc, ioport, ioport + EP_IOSIZE, irq);
275 return (found ? 0 : ENXIO);
279 ep_isa_probe(device_t dev)
283 /* Check isapnp ids */
284 error = ISA_PNP_PROBE(device_get_parent(dev), dev, ep_ids);
286 /* If the card had a PnP ID that didn't match any we know about */
287 if (error == ENXIO) {
291 /* If we had some other problem. */
292 if (!(error == 0 || error == ENOENT)) {
296 /* If we have the resources we need then we're good to go. */
297 if ((bus_get_resource_start(dev, SYS_RES_IOPORT, 0) != 0) &&
298 (bus_get_resource_start(dev, SYS_RES_IRQ, 0) != 0)) {
306 ep_isa_attach(device_t dev)
308 struct ep_softc * sc = device_get_softc(dev);
311 if ((error = ep_alloc(dev))) {
312 device_printf(dev, "ep_alloc() failed! (%d)\n", error);
319 SET_IRQ(BASE, rman_get_start(sc->irq));
321 if ((error = ep_attach(sc))) {
322 device_printf(dev, "ep_attach() failed! (%d)\n", error);
326 error = bus_setup_intr(dev, sc->irq, INTR_NETSAFE, ep_intr,
327 sc, &sc->ep_intrhand,
328 sc->arpcom.ac_if.if_serializer);
330 device_printf(dev, "bus_setup_intr() failed! (%d)\n", error);
340 static device_method_t ep_isa_methods[] = {
341 /* Device interface */
342 DEVMETHOD(device_identify, ep_isa_identify),
343 DEVMETHOD(device_probe, ep_isa_probe),
344 DEVMETHOD(device_attach, ep_isa_attach),
349 static driver_t ep_isa_driver = {
352 sizeof(struct ep_softc),
355 extern devclass_t ep_devclass;
357 DRIVER_MODULE(if_ep, isa, ep_isa_driver, ep_devclass, 0, 0);