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if_ex_isa.c (131248) if_ex_isa.c (147256)
1/*-
2 * Copyright (c) 2000 Matthew N. Dodd
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 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 */
27
28#include <sys/cdefs.h>
1/*-
2 * Copyright (c) 2000 Matthew N. Dodd
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 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 */
27
28#include <sys/cdefs.h>
29__FBSDID("$FreeBSD: head/sys/dev/ex/if_ex_isa.c 131248 2004-06-28 16:38:53Z imp $");
29__FBSDID("$FreeBSD: head/sys/dev/ex/if_ex_isa.c 147256 2005-06-10 16:49:24Z brooks $");
30
31#include <sys/param.h>
32#include <sys/systm.h>
33#include <sys/kernel.h>
34#include <sys/socket.h>
35
36#include <sys/module.h>
37#include <sys/bus.h>
38
39#include <machine/bus.h>
40#include <machine/resource.h>
41#include <sys/rman.h>
42
43#include <net/if.h>
44#include <net/if_arp.h>
45#include <net/if_media.h>
46
47
48#include <isa/isavar.h>
49#include <isa/pnpvar.h>
50
51#include <dev/ex/if_exreg.h>
52#include <dev/ex/if_exvar.h>
53
54/* Bus Front End Functions */
55static void ex_isa_identify(driver_t *, device_t);
56static int ex_isa_probe(device_t);
57static int ex_isa_attach(device_t);
58
59static int ex_look_for_card(struct ex_softc *);
60
61#if 0
62static void ex_pnp_wakeup(void *);
63
64SYSINIT(ex_pnpwakeup, SI_SUB_CPU, SI_ORDER_ANY, ex_pnp_wakeup, NULL);
65#endif
66
67static device_method_t ex_isa_methods[] = {
68 /* Device interface */
69 DEVMETHOD(device_identify, ex_isa_identify),
70 DEVMETHOD(device_probe, ex_isa_probe),
71 DEVMETHOD(device_attach, ex_isa_attach),
72 DEVMETHOD(device_detach, ex_detach),
73
74 { 0, 0 }
75};
76
77static driver_t ex_isa_driver = {
78 "ex",
79 ex_isa_methods,
80 sizeof(struct ex_softc),
81};
82
83DRIVER_MODULE(ex, isa, ex_isa_driver, ex_devclass, 0, 0);
84
85static struct isa_pnp_id ex_ids[] = {
86 { 0x3110d425, NULL }, /* INT1031 */
87 { 0x3010d425, NULL }, /* INT1030 */
88 { 0, NULL },
89};
90
91#if 0
92#define EX_PNP_WAKE 0x279
93
94static uint8_t ex_pnp_wake_seq[] =
95 { 0x6A, 0xB5, 0xDA, 0xED, 0xF6, 0xFB, 0x7D, 0xBE,
96 0xDF, 0x6F, 0x37, 0x1B, 0x0D, 0x86, 0xC3, 0x61,
97 0xB0, 0x58, 0x2C, 0x16, 0x8B, 0x45, 0xA2, 0xD1,
98 0xE8, 0x74, 0x3A, 0x9D, 0xCE, 0xE7, 0x73, 0x43 };
99
100static void
101ex_pnp_wakeup (void * dummy)
102{
103 int tmp;
104
105 if (bootverbose)
106 printf("ex_pnp_wakeup()\n");
107
108 outb(EX_PNP_WAKE, 0);
109 outb(EX_PNP_WAKE, 0);
110 for (tmp = 0; tmp < 32; tmp++) {
111 outb(EX_PNP_WAKE, ex_pnp_wake_seq[tmp]);
112 }
113}
114#endif
115
116/*
117 * Non-destructive identify.
118 */
119static void
120ex_isa_identify(driver_t *driver, device_t parent)
121{
122 device_t child;
123 bus_addr_t ioport;
124 u_char enaddr[6];
125 u_int irq;
126 int tmp;
127 const char * desc;
128 struct ex_softc sc;
129 struct resource *res;
130 int rid;
131
132 if (bootverbose)
133 printf("ex_isa_identify()\n");
134
135 for (ioport = 0x200; ioport < 0x3a0; ioport += 0x10) {
136 rid = 0;
137 res = bus_alloc_resource(parent, SYS_RES_IOPORT, &rid,
138 ioport, ioport, 0x10, RF_ACTIVE);
139 if (res == NULL)
140 continue;
141 sc.bst = rman_get_bustag(res);
142 sc.bsh = rman_get_bushandle(res);
143
144 /* No board found at address */
145 if (!ex_look_for_card(&sc)) {
146 bus_release_resource(parent, SYS_RES_IOPORT, rid, res);
147 continue;
148 }
149
150 if (bootverbose)
151 printf("ex: Found card at 0x%03lx!\n", (unsigned long)ioport);
152
153 /* Board in PnP mode */
154 if (ex_eeprom_read(&sc, EE_W0) & EE_W0_PNP) {
155 /* Reset the card. */
156 CSR_WRITE_1(&sc, CMD_REG, Reset_CMD);
157 DELAY(500);
158 if (bootverbose)
159 printf("ex: card at 0x%03lx in PnP mode!\n", (unsigned long)ioport);
160 bus_release_resource(parent, SYS_RES_IOPORT, rid, res);
161 continue;
162 }
163
164 bzero(enaddr, sizeof(enaddr));
165
166 /* Reset the card. */
167 CSR_WRITE_1(&sc, CMD_REG, Reset_CMD);
168 DELAY(400);
169
170 ex_get_address(&sc, enaddr);
171 tmp = ex_eeprom_read(&sc, EE_W1) & EE_W1_INT_SEL;
172
173 /* work out which set of irq <-> internal tables to use */
174 if (ex_card_type(enaddr) == CARD_TYPE_EX_10_PLUS) {
175 irq = plus_ee2irqmap[tmp];
176 desc = "Intel Pro/10+";
177 } else {
178 irq = ee2irqmap[tmp];
179 desc = "Intel Pro/10";
180 }
181
182 bus_release_resource(parent, SYS_RES_IOPORT, rid, res);
183 child = BUS_ADD_CHILD(parent, ISA_ORDER_SPECULATIVE, "ex", -1);
184 device_set_desc_copy(child, desc);
185 device_set_driver(child, driver);
186 bus_set_resource(child, SYS_RES_IRQ, 0, irq, 1);
187 bus_set_resource(child, SYS_RES_IOPORT, 0, ioport, EX_IOSIZE);
188 if (bootverbose)
189 printf("ex: Adding board at 0x%03lx, irq %d\n",
190 (unsigned long)ioport, irq);
191 }
192
193 return;
194}
195
196static int
197ex_isa_probe(device_t dev)
198{
199 bus_addr_t iobase;
200 u_int irq;
201 char * irq2ee;
202 u_char * ee2irq;
203 u_char enaddr[6];
204 int tmp;
205 int error;
206 struct ex_softc *sc = device_get_softc(dev);
207
208 /* Check isapnp ids */
209 error = ISA_PNP_PROBE(device_get_parent(dev), dev, ex_ids);
210
211 /* If the card had a PnP ID that didn't match any we know about */
212 if (error == ENXIO)
213 return(error);
214
215 /* If we had some other problem. */
216 if (!(error == 0 || error == ENOENT))
217 return(error);
218
219 error = ex_alloc_resources(dev);
220 if (error != 0)
221 goto bad;
222 iobase = bus_get_resource_start(dev, SYS_RES_IOPORT, 0);
223 if (!ex_look_for_card(sc)) {
224 if (bootverbose)
225 printf("ex: no card found at 0x%03lx.\n", (unsigned long)iobase);
226 error = ENXIO;
227 goto bad;
228 }
229 if (bootverbose)
230 printf("ex: ex_isa_probe() found card at 0x%03lx\n", (unsigned long)iobase);
231
232 /*
233 * Reset the card.
234 */
235 CSR_WRITE_1(sc, CMD_REG, Reset_CMD);
236 DELAY(800);
237
238 ex_get_address(sc, enaddr);
239
240 /* work out which set of irq <-> internal tables to use */
241 if (ex_card_type(enaddr) == CARD_TYPE_EX_10_PLUS) {
242 irq2ee = plus_irq2eemap;
243 ee2irq = plus_ee2irqmap;
244 } else {
245 irq2ee = irq2eemap;
246 ee2irq = ee2irqmap;
247 }
248
249 tmp = ex_eeprom_read(sc, EE_W1) & EE_W1_INT_SEL;
250 irq = bus_get_resource_start(dev, SYS_RES_IRQ, 0);
251
252 if (irq > 0) {
253 /* This will happen if board is in PnP mode. */
254 if (ee2irq[tmp] != irq) {
255 printf("ex: WARNING: board's EEPROM is configured"
256 " for IRQ %d, using %d\n",
257 ee2irq[tmp], irq);
258 }
259 } else {
260 irq = ee2irq[tmp];
261 bus_set_resource(dev, SYS_RES_IRQ, 0, irq, 1);
262 }
263
264 if (irq == 0) {
265 printf("ex: invalid IRQ.\n");
266 error = ENXIO;
267 }
268
269bad:;
270 ex_release_resources(dev);
271 return(error);
272}
273
274static int
275ex_isa_attach(device_t dev)
276{
277 struct ex_softc * sc = device_get_softc(dev);
278 int error = 0;
279 uint16_t temp;
280
281 sc->dev = dev;
282 sc->ioport_rid = 0;
283 sc->irq_rid = 0;
284
285 if ((error = ex_alloc_resources(dev)) != 0) {
286 device_printf(dev, "ex_alloc_resources() failed!\n");
287 goto bad;
288 }
289
290 /*
291 * Fill in several fields of the softc structure:
292 * - I/O base address.
293 * - Hardware Ethernet address.
294 * - IRQ number (if not supplied in config file, read it from EEPROM).
295 * - Connector type.
296 */
297 sc->irq_no = rman_get_start(sc->irq);
298
30
31#include <sys/param.h>
32#include <sys/systm.h>
33#include <sys/kernel.h>
34#include <sys/socket.h>
35
36#include <sys/module.h>
37#include <sys/bus.h>
38
39#include <machine/bus.h>
40#include <machine/resource.h>
41#include <sys/rman.h>
42
43#include <net/if.h>
44#include <net/if_arp.h>
45#include <net/if_media.h>
46
47
48#include <isa/isavar.h>
49#include <isa/pnpvar.h>
50
51#include <dev/ex/if_exreg.h>
52#include <dev/ex/if_exvar.h>
53
54/* Bus Front End Functions */
55static void ex_isa_identify(driver_t *, device_t);
56static int ex_isa_probe(device_t);
57static int ex_isa_attach(device_t);
58
59static int ex_look_for_card(struct ex_softc *);
60
61#if 0
62static void ex_pnp_wakeup(void *);
63
64SYSINIT(ex_pnpwakeup, SI_SUB_CPU, SI_ORDER_ANY, ex_pnp_wakeup, NULL);
65#endif
66
67static device_method_t ex_isa_methods[] = {
68 /* Device interface */
69 DEVMETHOD(device_identify, ex_isa_identify),
70 DEVMETHOD(device_probe, ex_isa_probe),
71 DEVMETHOD(device_attach, ex_isa_attach),
72 DEVMETHOD(device_detach, ex_detach),
73
74 { 0, 0 }
75};
76
77static driver_t ex_isa_driver = {
78 "ex",
79 ex_isa_methods,
80 sizeof(struct ex_softc),
81};
82
83DRIVER_MODULE(ex, isa, ex_isa_driver, ex_devclass, 0, 0);
84
85static struct isa_pnp_id ex_ids[] = {
86 { 0x3110d425, NULL }, /* INT1031 */
87 { 0x3010d425, NULL }, /* INT1030 */
88 { 0, NULL },
89};
90
91#if 0
92#define EX_PNP_WAKE 0x279
93
94static uint8_t ex_pnp_wake_seq[] =
95 { 0x6A, 0xB5, 0xDA, 0xED, 0xF6, 0xFB, 0x7D, 0xBE,
96 0xDF, 0x6F, 0x37, 0x1B, 0x0D, 0x86, 0xC3, 0x61,
97 0xB0, 0x58, 0x2C, 0x16, 0x8B, 0x45, 0xA2, 0xD1,
98 0xE8, 0x74, 0x3A, 0x9D, 0xCE, 0xE7, 0x73, 0x43 };
99
100static void
101ex_pnp_wakeup (void * dummy)
102{
103 int tmp;
104
105 if (bootverbose)
106 printf("ex_pnp_wakeup()\n");
107
108 outb(EX_PNP_WAKE, 0);
109 outb(EX_PNP_WAKE, 0);
110 for (tmp = 0; tmp < 32; tmp++) {
111 outb(EX_PNP_WAKE, ex_pnp_wake_seq[tmp]);
112 }
113}
114#endif
115
116/*
117 * Non-destructive identify.
118 */
119static void
120ex_isa_identify(driver_t *driver, device_t parent)
121{
122 device_t child;
123 bus_addr_t ioport;
124 u_char enaddr[6];
125 u_int irq;
126 int tmp;
127 const char * desc;
128 struct ex_softc sc;
129 struct resource *res;
130 int rid;
131
132 if (bootverbose)
133 printf("ex_isa_identify()\n");
134
135 for (ioport = 0x200; ioport < 0x3a0; ioport += 0x10) {
136 rid = 0;
137 res = bus_alloc_resource(parent, SYS_RES_IOPORT, &rid,
138 ioport, ioport, 0x10, RF_ACTIVE);
139 if (res == NULL)
140 continue;
141 sc.bst = rman_get_bustag(res);
142 sc.bsh = rman_get_bushandle(res);
143
144 /* No board found at address */
145 if (!ex_look_for_card(&sc)) {
146 bus_release_resource(parent, SYS_RES_IOPORT, rid, res);
147 continue;
148 }
149
150 if (bootverbose)
151 printf("ex: Found card at 0x%03lx!\n", (unsigned long)ioport);
152
153 /* Board in PnP mode */
154 if (ex_eeprom_read(&sc, EE_W0) & EE_W0_PNP) {
155 /* Reset the card. */
156 CSR_WRITE_1(&sc, CMD_REG, Reset_CMD);
157 DELAY(500);
158 if (bootverbose)
159 printf("ex: card at 0x%03lx in PnP mode!\n", (unsigned long)ioport);
160 bus_release_resource(parent, SYS_RES_IOPORT, rid, res);
161 continue;
162 }
163
164 bzero(enaddr, sizeof(enaddr));
165
166 /* Reset the card. */
167 CSR_WRITE_1(&sc, CMD_REG, Reset_CMD);
168 DELAY(400);
169
170 ex_get_address(&sc, enaddr);
171 tmp = ex_eeprom_read(&sc, EE_W1) & EE_W1_INT_SEL;
172
173 /* work out which set of irq <-> internal tables to use */
174 if (ex_card_type(enaddr) == CARD_TYPE_EX_10_PLUS) {
175 irq = plus_ee2irqmap[tmp];
176 desc = "Intel Pro/10+";
177 } else {
178 irq = ee2irqmap[tmp];
179 desc = "Intel Pro/10";
180 }
181
182 bus_release_resource(parent, SYS_RES_IOPORT, rid, res);
183 child = BUS_ADD_CHILD(parent, ISA_ORDER_SPECULATIVE, "ex", -1);
184 device_set_desc_copy(child, desc);
185 device_set_driver(child, driver);
186 bus_set_resource(child, SYS_RES_IRQ, 0, irq, 1);
187 bus_set_resource(child, SYS_RES_IOPORT, 0, ioport, EX_IOSIZE);
188 if (bootverbose)
189 printf("ex: Adding board at 0x%03lx, irq %d\n",
190 (unsigned long)ioport, irq);
191 }
192
193 return;
194}
195
196static int
197ex_isa_probe(device_t dev)
198{
199 bus_addr_t iobase;
200 u_int irq;
201 char * irq2ee;
202 u_char * ee2irq;
203 u_char enaddr[6];
204 int tmp;
205 int error;
206 struct ex_softc *sc = device_get_softc(dev);
207
208 /* Check isapnp ids */
209 error = ISA_PNP_PROBE(device_get_parent(dev), dev, ex_ids);
210
211 /* If the card had a PnP ID that didn't match any we know about */
212 if (error == ENXIO)
213 return(error);
214
215 /* If we had some other problem. */
216 if (!(error == 0 || error == ENOENT))
217 return(error);
218
219 error = ex_alloc_resources(dev);
220 if (error != 0)
221 goto bad;
222 iobase = bus_get_resource_start(dev, SYS_RES_IOPORT, 0);
223 if (!ex_look_for_card(sc)) {
224 if (bootverbose)
225 printf("ex: no card found at 0x%03lx.\n", (unsigned long)iobase);
226 error = ENXIO;
227 goto bad;
228 }
229 if (bootverbose)
230 printf("ex: ex_isa_probe() found card at 0x%03lx\n", (unsigned long)iobase);
231
232 /*
233 * Reset the card.
234 */
235 CSR_WRITE_1(sc, CMD_REG, Reset_CMD);
236 DELAY(800);
237
238 ex_get_address(sc, enaddr);
239
240 /* work out which set of irq <-> internal tables to use */
241 if (ex_card_type(enaddr) == CARD_TYPE_EX_10_PLUS) {
242 irq2ee = plus_irq2eemap;
243 ee2irq = plus_ee2irqmap;
244 } else {
245 irq2ee = irq2eemap;
246 ee2irq = ee2irqmap;
247 }
248
249 tmp = ex_eeprom_read(sc, EE_W1) & EE_W1_INT_SEL;
250 irq = bus_get_resource_start(dev, SYS_RES_IRQ, 0);
251
252 if (irq > 0) {
253 /* This will happen if board is in PnP mode. */
254 if (ee2irq[tmp] != irq) {
255 printf("ex: WARNING: board's EEPROM is configured"
256 " for IRQ %d, using %d\n",
257 ee2irq[tmp], irq);
258 }
259 } else {
260 irq = ee2irq[tmp];
261 bus_set_resource(dev, SYS_RES_IRQ, 0, irq, 1);
262 }
263
264 if (irq == 0) {
265 printf("ex: invalid IRQ.\n");
266 error = ENXIO;
267 }
268
269bad:;
270 ex_release_resources(dev);
271 return(error);
272}
273
274static int
275ex_isa_attach(device_t dev)
276{
277 struct ex_softc * sc = device_get_softc(dev);
278 int error = 0;
279 uint16_t temp;
280
281 sc->dev = dev;
282 sc->ioport_rid = 0;
283 sc->irq_rid = 0;
284
285 if ((error = ex_alloc_resources(dev)) != 0) {
286 device_printf(dev, "ex_alloc_resources() failed!\n");
287 goto bad;
288 }
289
290 /*
291 * Fill in several fields of the softc structure:
292 * - I/O base address.
293 * - Hardware Ethernet address.
294 * - IRQ number (if not supplied in config file, read it from EEPROM).
295 * - Connector type.
296 */
297 sc->irq_no = rman_get_start(sc->irq);
298
299 ex_get_address(sc, sc->arpcom.ac_enaddr);
299 ex_get_address(sc, sc->enaddr);
300
301 temp = ex_eeprom_read(sc, EE_W0);
302 device_printf(sc->dev, "%s config, %s bus, ",
303 (temp & EE_W0_PNP) ? "PnP" : "Manual",
304 (temp & EE_W0_BUS16) ? "16-bit" : "8-bit");
305
306 temp = ex_eeprom_read(sc, EE_W6);
307 printf("board id 0x%03x, stepping 0x%01x\n",
308 (temp & EE_W6_BOARD_MASK) >> EE_W6_BOARD_SHIFT,
309 temp & EE_W6_STEP_MASK);
310
311 if ((error = ex_attach(dev)) != 0) {
312 device_printf(dev, "ex_attach() failed!\n");
313 goto bad;
314 }
315
316 error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET,
317 ex_intr, (void *)sc, &sc->ih);
318 if (error) {
319 device_printf(dev, "bus_setup_intr() failed!\n");
320 goto bad;
321 }
322
323 return(0);
324bad:
325 ex_release_resources(dev);
326 return (error);
327}
328
329static int
330ex_look_for_card(struct ex_softc *sc)
331{
332 int count1, count2;
333
334 /*
335 * Check for the i82595 signature, and check that the round robin
336 * counter actually advances.
337 */
338 if (((count1 = CSR_READ_1(sc, ID_REG)) & Id_Mask) != Id_Sig)
339 return(0);
340 count2 = CSR_READ_1(sc, ID_REG);
341 count2 = CSR_READ_1(sc, ID_REG);
342 count2 = CSR_READ_1(sc, ID_REG);
343
344 return((count2 & Counter_bits) == ((count1 + 0xc0) & Counter_bits));
345}
300
301 temp = ex_eeprom_read(sc, EE_W0);
302 device_printf(sc->dev, "%s config, %s bus, ",
303 (temp & EE_W0_PNP) ? "PnP" : "Manual",
304 (temp & EE_W0_BUS16) ? "16-bit" : "8-bit");
305
306 temp = ex_eeprom_read(sc, EE_W6);
307 printf("board id 0x%03x, stepping 0x%01x\n",
308 (temp & EE_W6_BOARD_MASK) >> EE_W6_BOARD_SHIFT,
309 temp & EE_W6_STEP_MASK);
310
311 if ((error = ex_attach(dev)) != 0) {
312 device_printf(dev, "ex_attach() failed!\n");
313 goto bad;
314 }
315
316 error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET,
317 ex_intr, (void *)sc, &sc->ih);
318 if (error) {
319 device_printf(dev, "bus_setup_intr() failed!\n");
320 goto bad;
321 }
322
323 return(0);
324bad:
325 ex_release_resources(dev);
326 return (error);
327}
328
329static int
330ex_look_for_card(struct ex_softc *sc)
331{
332 int count1, count2;
333
334 /*
335 * Check for the i82595 signature, and check that the round robin
336 * counter actually advances.
337 */
338 if (((count1 = CSR_READ_1(sc, ID_REG)) & Id_Mask) != Id_Sig)
339 return(0);
340 count2 = CSR_READ_1(sc, ID_REG);
341 count2 = CSR_READ_1(sc, ID_REG);
342 count2 = CSR_READ_1(sc, ID_REG);
343
344 return((count2 & Counter_bits) == ((count1 + 0xc0) & Counter_bits));
345}