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("$FreeBSD$");
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 */
55 static void ex_isa_identify(driver_t *, device_t);
56 static int ex_isa_probe(device_t);
57 static int ex_isa_attach(device_t);
58
59 static int ex_look_for_card(struct ex_softc *);
60
61 #if 0
62 static void ex_pnp_wakeup(void *);
63
64 SYSINIT(ex_pnpwakeup, SI_SUB_CPU, SI_ORDER_ANY, ex_pnp_wakeup, NULL);
65 #endif
66
67 static 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
77 static driver_t ex_isa_driver = {
78 "ex",
79 ex_isa_methods,
80 sizeof(struct ex_softc),
81 };
82
83 DRIVER_MODULE(ex, isa, ex_isa_driver, ex_devclass, 0, 0);
84
85 static 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
94 static 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
100 static void
101 ex_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 */
119 static void
ex_isa_identify(driver_t * driver,device_t parent)120 ex_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 int rid;
130
131 if (bootverbose)
132 printf("ex_isa_identify()\n");
133
134 for (ioport = 0x200; ioport < 0x3a0; ioport += 0x10) {
135 rid = 0;
136 sc.ioport = bus_alloc_resource(parent, SYS_RES_IOPORT, &rid,
137 ioport, ioport, 0x10, RF_ACTIVE);
138 if (sc.ioport == NULL)
139 continue;
140
141 /* No board found at address */
142 if (!ex_look_for_card(&sc)) {
143 bus_release_resource(parent, SYS_RES_IOPORT, rid,
144 sc.ioport);
145 continue;
146 }
147
148 if (bootverbose)
149 printf("ex: Found card at 0x%03lx!\n", (unsigned long)ioport);
150
151 /* Board in PnP mode */
152 if (ex_eeprom_read(&sc, EE_W0) & EE_W0_PNP) {
153 /* Reset the card. */
154 CSR_WRITE_1(&sc, CMD_REG, Reset_CMD);
155 DELAY(500);
156 if (bootverbose)
157 printf("ex: card at 0x%03lx in PnP mode!\n", (unsigned long)ioport);
158 bus_release_resource(parent, SYS_RES_IOPORT, rid,
159 sc.ioport);
160 continue;
161 }
162
163 bzero(enaddr, sizeof(enaddr));
164
165 /* Reset the card. */
166 CSR_WRITE_1(&sc, CMD_REG, Reset_CMD);
167 DELAY(400);
168
169 ex_get_address(&sc, enaddr);
170 tmp = ex_eeprom_read(&sc, EE_W1) & EE_W1_INT_SEL;
171
172 /* work out which set of irq <-> internal tables to use */
173 if (ex_card_type(enaddr) == CARD_TYPE_EX_10_PLUS) {
174 irq = plus_ee2irqmap[tmp];
175 desc = "Intel Pro/10+";
176 } else {
177 irq = ee2irqmap[tmp];
178 desc = "Intel Pro/10";
179 }
180
181 bus_release_resource(parent, SYS_RES_IOPORT, rid, sc.ioport);
182 child = BUS_ADD_CHILD(parent, ISA_ORDER_SPECULATIVE, "ex", -1);
183 device_set_desc_copy(child, desc);
184 device_set_driver(child, driver);
185 bus_set_resource(child, SYS_RES_IRQ, 0, irq, 1);
186 bus_set_resource(child, SYS_RES_IOPORT, 0, ioport, EX_IOSIZE);
187 if (bootverbose)
188 printf("ex: Adding board at 0x%03lx, irq %d\n",
189 (unsigned long)ioport, irq);
190 }
191
192 return;
193 }
194
195 static int
ex_isa_probe(device_t dev)196 ex_isa_probe(device_t dev)
197 {
198 bus_addr_t iobase;
199 u_int irq;
200 char * irq2ee;
201 u_char * ee2irq;
202 u_char enaddr[6];
203 int tmp;
204 int error;
205 struct ex_softc *sc = device_get_softc(dev);
206
207 /* Check isapnp ids */
208 error = ISA_PNP_PROBE(device_get_parent(dev), dev, ex_ids);
209
210 /* If the card had a PnP ID that didn't match any we know about */
211 if (error == ENXIO)
212 return(error);
213
214 /* If we had some other problem. */
215 if (!(error == 0 || error == ENOENT))
216 return(error);
217
218 error = ex_alloc_resources(dev);
219 if (error != 0)
220 goto bad;
221 iobase = bus_get_resource_start(dev, SYS_RES_IOPORT, 0);
222 if (!ex_look_for_card(sc)) {
223 if (bootverbose)
224 printf("ex: no card found at 0x%03lx.\n", (unsigned long)iobase);
225 error = ENXIO;
226 goto bad;
227 }
228 if (bootverbose)
229 printf("ex: ex_isa_probe() found card at 0x%03lx\n", (unsigned long)iobase);
230
231 /*
232 * Reset the card.
233 */
234 CSR_WRITE_1(sc, CMD_REG, Reset_CMD);
235 DELAY(800);
236
237 ex_get_address(sc, enaddr);
238
239 /* work out which set of irq <-> internal tables to use */
240 if (ex_card_type(enaddr) == CARD_TYPE_EX_10_PLUS) {
241 irq2ee = plus_irq2eemap;
242 ee2irq = plus_ee2irqmap;
243 } else {
244 irq2ee = irq2eemap;
245 ee2irq = ee2irqmap;
246 }
247
248 tmp = ex_eeprom_read(sc, EE_W1) & EE_W1_INT_SEL;
249 irq = bus_get_resource_start(dev, SYS_RES_IRQ, 0);
250 if (irq > 0) {
251 /* This will happen if board is in PnP mode. */
252 if (ee2irq[tmp] != irq) {
253 device_printf(dev,
254 "WARNING: IRQ mismatch: EEPROM %d, using %d\n",
255 ee2irq[tmp], irq);
256 }
257 } else {
258 irq = ee2irq[tmp];
259 bus_set_resource(dev, SYS_RES_IRQ, 0, irq, 1);
260 }
261
262 if (irq == 0) {
263 printf("ex: invalid IRQ.\n");
264 error = ENXIO;
265 }
266
267 bad:;
268 ex_release_resources(dev);
269 return (error);
270 }
271
272 static int
ex_isa_attach(device_t dev)273 ex_isa_attach(device_t dev)
274 {
275 struct ex_softc * sc = device_get_softc(dev);
276 int error = 0;
277 uint16_t temp;
278
279 sc->dev = dev;
280 sc->ioport_rid = 0;
281 sc->irq_rid = 0;
282 sc->flags |= HAS_INT_NO_REG;
283
284 if ((error = ex_alloc_resources(dev)) != 0) {
285 device_printf(dev, "ex_alloc_resources() failed!\n");
286 goto bad;
287 }
288
289 /*
290 * Fill in several fields of the softc structure:
291 * - I/O base address.
292 * - Hardware Ethernet address.
293 * - IRQ number (if not supplied in config file, read it from EEPROM).
294 * - Connector type.
295 */
296 sc->irq_no = rman_get_start(sc->irq);
297
298 ex_get_address(sc, sc->enaddr);
299
300 temp = ex_eeprom_read(sc, EE_W0);
301 device_printf(sc->dev, "%s config, %s bus, ",
302 (temp & EE_W0_PNP) ? "PnP" : "Manual",
303 (temp & EE_W0_BUS16) ? "16-bit" : "8-bit");
304
305 temp = ex_eeprom_read(sc, EE_W6);
306 printf("board id 0x%03x, stepping 0x%01x\n",
307 (temp & EE_W6_BOARD_MASK) >> EE_W6_BOARD_SHIFT,
308 temp & EE_W6_STEP_MASK);
309
310 if ((error = ex_attach(dev)) != 0) {
311 device_printf(dev, "ex_attach() failed!\n");
312 goto bad;
313 }
314
315 return(0);
316 bad:
317 ex_release_resources(dev);
318 return (error);
319 }
320
321 static int
ex_look_for_card(struct ex_softc * sc)322 ex_look_for_card(struct ex_softc *sc)
323 {
324 int count1, count2;
325
326 /*
327 * Check for the i82595 signature, and check that the round robin
328 * counter actually advances.
329 */
330 if (((count1 = CSR_READ_1(sc, ID_REG)) & Id_Mask) != Id_Sig)
331 return(0);
332 count2 = CSR_READ_1(sc, ID_REG);
333 count2 = CSR_READ_1(sc, ID_REG);
334 count2 = CSR_READ_1(sc, ID_REG);
335
336 return((count2 & Counter_bits) == ((count1 + 0xc0) & Counter_bits));
337 }
338