if_ate.c revision 1.28
1 /* $NetBSD: if_ate.c,v 1.28 2001/11/13 08:01:16 lukem Exp $ */ 2 3 /* 4 * All Rights Reserved, Copyright (C) Fujitsu Limited 1995 5 * 6 * This software may be used, modified, copied, distributed, and sold, in 7 * both source and binary form provided that the above copyright, these 8 * terms and the following disclaimer are retained. The name of the author 9 * and/or the contributor may not be used to endorse or promote products 10 * derived from this software without specific prior written permission. 11 * 12 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND THE CONTRIBUTOR ``AS IS'' AND 13 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 14 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 15 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR THE CONTRIBUTOR BE LIABLE 16 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 17 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 18 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION. 19 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 20 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 21 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 22 * SUCH DAMAGE. 23 */ 24 25 /* 26 * Portions copyright (C) 1993, David Greenman. This software may be used, 27 * modified, copied, distributed, and sold, in both source and binary form 28 * provided that the above copyright and these terms are retained. Under no 29 * circumstances is the author responsible for the proper functioning of this 30 * software, nor does the author assume any responsibility for damages 31 * incurred with its use. 32 */ 33 34 #include <sys/cdefs.h> 35 __KERNEL_RCSID(0, "$NetBSD: if_ate.c,v 1.28 2001/11/13 08:01:16 lukem Exp $"); 36 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/device.h> 40 #include <sys/socket.h> 41 #include <sys/syslog.h> 42 43 #include <net/if.h> 44 #include <net/if_ether.h> 45 #include <net/if_media.h> 46 47 #include <machine/bus.h> 48 #include <machine/intr.h> 49 50 #include <dev/ic/mb86960reg.h> 51 #include <dev/ic/mb86960var.h> 52 #include <dev/ic/ate_subr.h> 53 54 #include <dev/isa/isavar.h> 55 #include <dev/isa/if_fereg.h> /* XXX */ 56 57 int ate_match __P((struct device *, struct cfdata *, void *)); 58 void ate_attach __P((struct device *, struct device *, void *)); 59 60 struct ate_softc { 61 struct mb86960_softc sc_mb86960; /* real "mb86960" softc */ 62 63 /* ISA-specific goo. */ 64 void *sc_ih; /* interrupt cookie */ 65 }; 66 67 struct cfattach ate_isa_ca = { 68 sizeof(struct ate_softc), ate_match, ate_attach 69 }; 70 71 #if NetBSD <= 199712 72 struct cfdriver ate_isa_cd = { 73 NULL, "ate", DV_IFNET 74 }; 75 #endif 76 77 struct fe_simple_probe_struct { 78 u_char port; /* Offset from the base I/O address. */ 79 u_char mask; /* Bits to be checked. */ 80 u_char bits; /* Values to be compared against. */ 81 }; 82 83 static __inline__ int fe_simple_probe __P((bus_space_tag_t, 84 bus_space_handle_t, struct fe_simple_probe_struct const *)); 85 static int ate_find __P((bus_space_tag_t, bus_space_handle_t, int *, 86 int *)); 87 static int ate_detect __P((bus_space_tag_t, bus_space_handle_t, 88 u_int8_t enaddr[ETHER_ADDR_LEN])); 89 90 static int const ate_iomap[8] = { 91 0x260, 0x280, 0x2A0, 0x240, 0x340, 0x320, 0x380, 0x300 92 }; 93 #define NATE_IOMAP (sizeof (ate_iomap) / sizeof (ate_iomap[0])) 94 #define ATE_NPORTS 0x20 95 96 /* 97 * Hardware probe routines. 98 */ 99 100 /* 101 * Determine if the device is present. 102 */ 103 int 104 ate_match(parent, match, aux) 105 struct device *parent; 106 struct cfdata *match; 107 void *aux; 108 { 109 struct isa_attach_args *ia = aux; 110 bus_space_tag_t iot = ia->ia_iot; 111 bus_space_handle_t ioh; 112 int i, iobase, irq, rv = 0; 113 u_int8_t myea[ETHER_ADDR_LEN]; 114 115 /* Disallow wildcarded values. */ 116 if (ia->ia_iobase == ISACF_PORT_DEFAULT) 117 return (0); 118 119 /* 120 * See if the sepcified address is valid for MB86965A JLI mode. 121 */ 122 for (i = 0; i < NATE_IOMAP; i++) 123 if (ate_iomap[i] == ia->ia_iobase) 124 break; 125 if (i == NATE_IOMAP) { 126 #ifdef ATE_DEBUG 127 printf("ate_match: unknown iobase 0x%x\n", ia->ia_iobase); 128 #endif 129 return (0); 130 } 131 132 /* Map i/o space. */ 133 if (bus_space_map(iot, ia->ia_iobase, ATE_NPORTS, 0, &ioh)) { 134 #ifdef ATE_DEBUG 135 printf("ate_match: couldn't map iospace 0x%x\n", 136 ia->ia_iobase); 137 #endif 138 return (0); 139 } 140 141 if (ate_find(iot, ioh, &iobase, &irq) == 0) { 142 #ifdef ATE_DEBUG 143 printf("ate_match: ate_find failed\n"); 144 #endif 145 goto out; 146 } 147 148 if (iobase != ia->ia_iobase) { 149 #ifdef ATE_DEBUG 150 printf("ate_match: unexpected iobase in board: 0x%x\n", 151 ia->ia_iobase); 152 #endif 153 goto out; 154 } 155 156 if (ate_detect(iot, ioh, myea) == 0) { /* XXX necessary? */ 157 #ifdef ATE_DEBUG 158 printf("ate_match: ate_detect failed\n"); 159 #endif 160 goto out; 161 } 162 163 if (ia->ia_irq != ISACF_IRQ_DEFAULT) { 164 if (ia->ia_irq != irq) { 165 printf("ate_match: irq mismatch; " 166 "kernel configured %d != board configured %d\n", 167 ia->ia_irq, irq); 168 goto out; 169 } 170 } else 171 ia->ia_irq = irq; 172 173 ia->ia_iosize = ATE_NPORTS; 174 ia->ia_msize = 0; 175 rv = 1; 176 177 out: 178 bus_space_unmap(iot, ioh, ATE_NPORTS); 179 return (rv); 180 } 181 182 /* 183 * Check for specific bits in specific registers have specific values. 184 */ 185 static __inline__ int 186 fe_simple_probe (iot, ioh, sp) 187 bus_space_tag_t iot; 188 bus_space_handle_t ioh; 189 struct fe_simple_probe_struct const *sp; 190 { 191 u_int8_t val; 192 struct fe_simple_probe_struct const *p; 193 194 for (p = sp; p->mask != 0; p++) { 195 val = bus_space_read_1(iot, ioh, p->port); 196 if ((val & p->mask) != p->bits) { 197 #ifdef ATE_DEBUG 198 printf("fe_simple_probe: %x & %x != %x\n", 199 val, p->mask, p->bits); 200 #endif 201 return (0); 202 } 203 } 204 205 return (1); 206 } 207 208 /* 209 * Hardware (vendor) specific probe routines. 210 */ 211 212 /* 213 * Probe and initialization for Allied-Telesis AT1700/RE2000 series. 214 */ 215 static int 216 ate_find(iot, ioh, iobase, irq) 217 bus_space_tag_t iot; 218 bus_space_handle_t ioh; 219 int *iobase, *irq; 220 { 221 u_char eeprom[FE_EEPROM_SIZE]; 222 int n; 223 224 static int const irqmap[4][4] = { 225 { 3, 4, 5, 9 }, 226 { 10, 11, 12, 15 }, 227 { 3, 11, 5, 15 }, 228 { 10, 11, 14, 15 }, 229 }; 230 static struct fe_simple_probe_struct const probe_table[] = { 231 { FE_DLCR2, 0x70, 0x00 }, 232 { FE_DLCR4, 0x08, 0x00 }, 233 { FE_DLCR5, 0x80, 0x00 }, 234 #if 0 235 { FE_BMPR16, 0x1B, 0x00 }, 236 { FE_BMPR17, 0x7F, 0x00 }, 237 #endif 238 { 0 } 239 }; 240 241 #if ATE_DEBUG >= 4 242 log(LOG_INFO, "ate_find: probe (0x%x) for ATI\n", iobase); 243 #if 0 244 fe_dump(LOG_INFO, sc); 245 #endif 246 #endif 247 248 /* 249 * We should test if MB86965A is on the base address now. 250 * Unfortunately, it is very hard to probe it reliably, since 251 * we have no way to reset the chip under software control. 252 * On cold boot, we could check the "signature" bit patterns 253 * described in the Fujitsu document. On warm boot, however, 254 * we can predict almost nothing about register values. 255 */ 256 if (!fe_simple_probe(iot, ioh, probe_table)) 257 return (0); 258 259 /* Check if our I/O address matches config info on 86965. */ 260 n = (bus_space_read_1(iot, ioh, FE_BMPR19) & FE_B19_ADDR) 261 >> FE_B19_ADDR_SHIFT; 262 *iobase = ate_iomap[n]; 263 264 /* 265 * We are now almost sure we have an AT1700 at the given 266 * address. So, read EEPROM through 86965. We have to write 267 * into LSI registers to read from EEPROM. I want to avoid it 268 * at this stage, but I cannot test the presense of the chip 269 * any further without reading EEPROM. FIXME. 270 */ 271 ate_read_eeprom(iot, ioh, eeprom); 272 273 /* Make sure that config info in EEPROM and 86965 agree. */ 274 if (eeprom[FE_EEPROM_CONF] != bus_space_read_1(iot, ioh, FE_BMPR19)) { 275 #ifdef DIAGNOSTIC 276 printf("ate_find: " 277 "incorrect configration in eeprom and chip\n"); 278 #endif 279 return (0); 280 } 281 282 /* 283 * Try to determine IRQ settings. 284 * Different models use different ranges of IRQs. 285 */ 286 n = (bus_space_read_1(iot, ioh, FE_BMPR19) & FE_B19_IRQ) 287 >> FE_B19_IRQ_SHIFT; 288 switch (eeprom[FE_ATI_EEP_REVISION] & 0xf0) { 289 case 0x30: 290 *irq = irqmap[3][n]; 291 break; 292 case 0x10: 293 case 0x50: 294 *irq = irqmap[2][n]; 295 break; 296 case 0x40: 297 case 0x60: 298 if (eeprom[FE_ATI_EEP_MAGIC] & 0x04) { 299 *irq = irqmap[1][n]; 300 break; 301 } 302 default: 303 *irq = irqmap[0][n]; 304 break; 305 } 306 307 return (1); 308 } 309 310 /* 311 * Determine type and ethernet address. 312 */ 313 static int 314 ate_detect(iot, ioh, enaddr) 315 bus_space_tag_t iot; 316 bus_space_handle_t ioh; 317 u_int8_t enaddr[ETHER_ADDR_LEN]; 318 { 319 u_char eeprom[FE_EEPROM_SIZE]; 320 int type; 321 322 /* Get our station address from EEPROM. */ 323 ate_read_eeprom(iot, ioh, eeprom); 324 memcpy(enaddr, eeprom + FE_ATI_EEP_ADDR, ETHER_ADDR_LEN); 325 326 /* Make sure we got a valid station address. */ 327 if ((enaddr[0] & 0x03) != 0x00 || 328 (enaddr[0] == 0x00 && enaddr[1] == 0x00 && enaddr[2] == 0x00)) { 329 #ifdef ATE_DEBUG 330 printf("fmv_detect: invalid ethernet address\n"); 331 #endif 332 return (0); 333 } 334 335 /* 336 * Determine the card type. 337 */ 338 switch (eeprom[FE_ATI_EEP_MODEL]) { 339 case FE_ATI_MODEL_AT1700T: 340 type = FE_TYPE_AT1700T; 341 break; 342 case FE_ATI_MODEL_AT1700BT: 343 type = FE_TYPE_AT1700BT; 344 break; 345 case FE_ATI_MODEL_AT1700FT: 346 type = FE_TYPE_AT1700FT; 347 break; 348 case FE_ATI_MODEL_AT1700AT: 349 type = FE_TYPE_AT1700AT; 350 break; 351 default: 352 type = FE_TYPE_RE2000; 353 break; 354 } 355 356 return (type); 357 } 358 359 void 360 ate_attach(parent, self, aux) 361 struct device *parent, *self; 362 void *aux; 363 { 364 struct ate_softc *isc = (struct ate_softc *)self; 365 struct mb86960_softc *sc = &isc->sc_mb86960; 366 struct isa_attach_args *ia = aux; 367 bus_space_tag_t iot = ia->ia_iot; 368 bus_space_handle_t ioh; 369 u_int8_t myea[ETHER_ADDR_LEN]; 370 const char *typestr; 371 int type; 372 373 printf("\n"); 374 375 /* Map i/o space. */ 376 if (bus_space_map(iot, ia->ia_iobase, ATE_NPORTS, 0, &ioh)) { 377 printf("%s: can't map i/o space\n", sc->sc_dev.dv_xname); 378 return; 379 } 380 381 sc->sc_bst = iot; 382 sc->sc_bsh = ioh; 383 384 /* Determine the card type and get ethernet address. */ 385 type = ate_detect(iot, ioh, myea); 386 switch (type) { 387 case FE_TYPE_AT1700T: 388 typestr = "AT-1700T"; 389 break; 390 case FE_TYPE_AT1700BT: 391 typestr = "AT-1700BT"; 392 break; 393 case FE_TYPE_AT1700FT: 394 typestr = "AT-1700FT"; 395 break; 396 case FE_TYPE_AT1700AT: 397 typestr = "AT-1700AT"; 398 break; 399 case FE_TYPE_RE2000: 400 typestr = "unknown (RE-2000?)"; 401 break; 402 403 default: 404 /* Unknown card type: maybe a new model, but... */ 405 printf("%s: where did the card go?!\n", sc->sc_dev.dv_xname); 406 panic("unknown card"); 407 } 408 409 printf("%s: %s Ethernet\n", sc->sc_dev.dv_xname, typestr); 410 411 /* This interface is always enabled. */ 412 sc->sc_flags |= FE_FLAGS_ENABLED; 413 414 /* 415 * Do generic MB86960 attach. 416 */ 417 mb86960_attach(sc, MB86960_TYPE_86965, myea); 418 419 mb86960_config(sc, NULL, 0, 0); 420 421 /* Establish the interrupt handler. */ 422 isc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE, 423 IPL_NET, mb86960_intr, sc); 424 if (isc->sc_ih == NULL) 425 printf("%s: couldn't establish interrupt handler\n", 426 sc->sc_dev.dv_xname); 427 } 428
Indexes created Thu Sep 25 02:09:54 GMT 2025