if_ate.c revision 1.35
1 /* $NetBSD: if_ate.c,v 1.35 2002/10/02 03:10:47 thorpej 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 1.35 2002/10/02 03:10:47 thorpej 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 56 int ate_match __P((struct device *, struct cfdata *, void *)); 57 void ate_attach __P((struct device *, struct device *, void *)); 58 59 struct ate_softc { 60 struct mb86960_softc sc_mb86960; /* real "mb86960" softc */ 61 62 /* ISA-specific goo. */ 63 void *sc_ih; /* interrupt cookie */ 64 }; 65 66 CFATTACH_DECL(ate_isa, sizeof(struct ate_softc), 67 ate_match, ate_attach, NULL, NULL); 68 69 struct fe_simple_probe_struct { 70 u_char port; /* Offset from the base I/O address. */ 71 u_char mask; /* Bits to be checked. */ 72 u_char bits; /* Values to be compared against. */ 73 }; 74 75 static __inline__ int fe_simple_probe __P((bus_space_tag_t, 76 bus_space_handle_t, struct fe_simple_probe_struct const *)); 77 static int ate_find __P((bus_space_tag_t, bus_space_handle_t, int *, 78 int *)); 79 static int ate_detect __P((bus_space_tag_t, bus_space_handle_t, 80 u_int8_t enaddr[ETHER_ADDR_LEN])); 81 82 static int const ate_iomap[8] = { 83 0x260, 0x280, 0x2A0, 0x240, 0x340, 0x320, 0x380, 0x300 84 }; 85 #define NATE_IOMAP (sizeof (ate_iomap) / sizeof (ate_iomap[0])) 86 #define ATE_NPORTS 0x20 87 88 /* 89 * Hardware probe routines. 90 */ 91 92 /* 93 * Determine if the device is present. 94 */ 95 int 96 ate_match(parent, match, aux) 97 struct device *parent; 98 struct cfdata *match; 99 void *aux; 100 { 101 struct isa_attach_args *ia = aux; 102 bus_space_tag_t iot = ia->ia_iot; 103 bus_space_handle_t ioh; 104 int i, iobase, irq, rv = 0; 105 u_int8_t myea[ETHER_ADDR_LEN]; 106 107 if (ia->ia_nio < 1) 108 return (0); 109 if (ia->ia_nirq < 1) 110 return (0); 111 112 if (ISA_DIRECT_CONFIG(ia)) 113 return (0); 114 115 /* Disallow wildcarded values. */ 116 if (ia->ia_io[0].ir_addr == 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_io[0].ir_addr) 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_io[0].ir_addr, ATE_NPORTS, 0, &ioh)) { 134 #ifdef ATE_DEBUG 135 printf("ate_match: couldn't map iospace 0x%x\n", 136 ia->ia_io[0].ir_addr); 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_io[0].ir_addr) { 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[0].ir_irq != ISACF_IRQ_DEFAULT) { 164 if (ia->ia_irq[0].ir_irq != irq) { 165 printf("ate_match: irq mismatch; " 166 "kernel configured %d != board configured %d\n", 167 ia->ia_irq[0].ir_irq, irq); 168 goto out; 169 } 170 } else 171 ia->ia_irq[0].ir_irq = irq; 172 173 ia->ia_nio = 1; 174 ia->ia_io[0].ir_size = ATE_NPORTS; 175 176 ia->ia_nirq = 1; 177 178 ia->ia_niomem = 0; 179 ia->ia_ndrq = 0; 180 181 rv = 1; 182 183 out: 184 bus_space_unmap(iot, ioh, ATE_NPORTS); 185 return (rv); 186 } 187 188 /* 189 * Check for specific bits in specific registers have specific values. 190 */ 191 static __inline__ int 192 fe_simple_probe (iot, ioh, sp) 193 bus_space_tag_t iot; 194 bus_space_handle_t ioh; 195 struct fe_simple_probe_struct const *sp; 196 { 197 u_int8_t val; 198 struct fe_simple_probe_struct const *p; 199 200 for (p = sp; p->mask != 0; p++) { 201 val = bus_space_read_1(iot, ioh, p->port); 202 if ((val & p->mask) != p->bits) { 203 #ifdef ATE_DEBUG 204 printf("fe_simple_probe: %x & %x != %x\n", 205 val, p->mask, p->bits); 206 #endif 207 return (0); 208 } 209 } 210 211 return (1); 212 } 213 214 /* 215 * Hardware (vendor) specific probe routines. 216 */ 217 218 /* 219 * Probe and initialization for Allied-Telesis AT1700/RE2000 series. 220 */ 221 static int 222 ate_find(iot, ioh, iobase, irq) 223 bus_space_tag_t iot; 224 bus_space_handle_t ioh; 225 int *iobase, *irq; 226 { 227 u_char eeprom[FE_EEPROM_SIZE]; 228 int n; 229 230 static int const irqmap[4][4] = { 231 { 3, 4, 5, 9 }, 232 { 10, 11, 12, 15 }, 233 { 3, 11, 5, 15 }, 234 { 10, 11, 14, 15 }, 235 }; 236 static struct fe_simple_probe_struct const probe_table[] = { 237 { FE_DLCR2, 0x70, 0x00 }, 238 { FE_DLCR4, 0x08, 0x00 }, 239 { FE_DLCR5, 0x80, 0x00 }, 240 #if 0 241 { FE_BMPR16, 0x1B, 0x00 }, 242 { FE_BMPR17, 0x7F, 0x00 }, 243 #endif 244 { 0 } 245 }; 246 247 #if ATE_DEBUG >= 4 248 log(LOG_INFO, "ate_find: probe (0x%x) for ATI\n", iobase); 249 #if 0 250 fe_dump(LOG_INFO, sc); 251 #endif 252 #endif 253 254 /* 255 * We should test if MB86965A is on the base address now. 256 * Unfortunately, it is very hard to probe it reliably, since 257 * we have no way to reset the chip under software control. 258 * On cold boot, we could check the "signature" bit patterns 259 * described in the Fujitsu document. On warm boot, however, 260 * we can predict almost nothing about register values. 261 */ 262 if (!fe_simple_probe(iot, ioh, probe_table)) 263 return (0); 264 265 /* Check if our I/O address matches config info on 86965. */ 266 n = (bus_space_read_1(iot, ioh, FE_BMPR19) & FE_B19_ADDR) 267 >> FE_B19_ADDR_SHIFT; 268 *iobase = ate_iomap[n]; 269 270 /* 271 * We are now almost sure we have an AT1700 at the given 272 * address. So, read EEPROM through 86965. We have to write 273 * into LSI registers to read from EEPROM. I want to avoid it 274 * at this stage, but I cannot test the presence of the chip 275 * any further without reading EEPROM. FIXME. 276 */ 277 ate_read_eeprom(iot, ioh, eeprom); 278 279 /* Make sure that config info in EEPROM and 86965 agree. */ 280 if (eeprom[FE_EEPROM_CONF] != bus_space_read_1(iot, ioh, FE_BMPR19)) { 281 #ifdef DIAGNOSTIC 282 printf("ate_find: " 283 "incorrect configration in eeprom and chip\n"); 284 #endif 285 return (0); 286 } 287 288 /* 289 * Try to determine IRQ settings. 290 * Different models use different ranges of IRQs. 291 */ 292 n = (bus_space_read_1(iot, ioh, FE_BMPR19) & FE_B19_IRQ) 293 >> FE_B19_IRQ_SHIFT; 294 switch (eeprom[FE_ATI_EEP_REVISION] & 0xf0) { 295 case 0x30: 296 *irq = irqmap[3][n]; 297 break; 298 case 0x10: 299 case 0x50: 300 *irq = irqmap[2][n]; 301 break; 302 case 0x40: 303 case 0x60: 304 if (eeprom[FE_ATI_EEP_MAGIC] & 0x04) { 305 *irq = irqmap[1][n]; 306 break; 307 } 308 default: 309 *irq = irqmap[0][n]; 310 break; 311 } 312 313 return (1); 314 } 315 316 /* 317 * Determine type and ethernet address. 318 */ 319 static int 320 ate_detect(iot, ioh, enaddr) 321 bus_space_tag_t iot; 322 bus_space_handle_t ioh; 323 u_int8_t enaddr[ETHER_ADDR_LEN]; 324 { 325 u_char eeprom[FE_EEPROM_SIZE]; 326 int type; 327 328 /* Get our station address from EEPROM. */ 329 ate_read_eeprom(iot, ioh, eeprom); 330 memcpy(enaddr, eeprom + FE_ATI_EEP_ADDR, ETHER_ADDR_LEN); 331 332 /* Make sure we got a valid station address. */ 333 if ((enaddr[0] & 0x03) != 0x00 || 334 (enaddr[0] == 0x00 && enaddr[1] == 0x00 && enaddr[2] == 0x00)) { 335 #ifdef ATE_DEBUG 336 printf("fmv_detect: invalid ethernet address\n"); 337 #endif 338 return (0); 339 } 340 341 /* 342 * Determine the card type. 343 */ 344 switch (eeprom[FE_ATI_EEP_MODEL]) { 345 case FE_ATI_MODEL_AT1700T: 346 type = FE_TYPE_AT1700T; 347 break; 348 case FE_ATI_MODEL_AT1700BT: 349 type = FE_TYPE_AT1700BT; 350 break; 351 case FE_ATI_MODEL_AT1700FT: 352 type = FE_TYPE_AT1700FT; 353 break; 354 case FE_ATI_MODEL_AT1700AT: 355 type = FE_TYPE_AT1700AT; 356 break; 357 default: 358 type = FE_TYPE_RE2000; 359 break; 360 } 361 362 return (type); 363 } 364 365 void 366 ate_attach(parent, self, aux) 367 struct device *parent, *self; 368 void *aux; 369 { 370 struct ate_softc *isc = (struct ate_softc *)self; 371 struct mb86960_softc *sc = &isc->sc_mb86960; 372 struct isa_attach_args *ia = aux; 373 bus_space_tag_t iot = ia->ia_iot; 374 bus_space_handle_t ioh; 375 u_int8_t myea[ETHER_ADDR_LEN]; 376 const char *typestr; 377 int type; 378 379 printf("\n"); 380 381 /* Map i/o space. */ 382 if (bus_space_map(iot, ia->ia_io[0].ir_addr, ATE_NPORTS, 0, &ioh)) { 383 printf("%s: can't map i/o space\n", sc->sc_dev.dv_xname); 384 return; 385 } 386 387 sc->sc_bst = iot; 388 sc->sc_bsh = ioh; 389 390 /* Determine the card type and get ethernet address. */ 391 type = ate_detect(iot, ioh, myea); 392 switch (type) { 393 case FE_TYPE_AT1700T: 394 typestr = "AT-1700T"; 395 break; 396 case FE_TYPE_AT1700BT: 397 typestr = "AT-1700BT"; 398 break; 399 case FE_TYPE_AT1700FT: 400 typestr = "AT-1700FT"; 401 break; 402 case FE_TYPE_AT1700AT: 403 typestr = "AT-1700AT"; 404 break; 405 case FE_TYPE_RE2000: 406 typestr = "unknown (RE-2000?)"; 407 break; 408 409 default: 410 /* Unknown card type: maybe a new model, but... */ 411 printf("%s: where did the card go?!\n", sc->sc_dev.dv_xname); 412 panic("unknown card"); 413 } 414 415 printf("%s: %s Ethernet\n", sc->sc_dev.dv_xname, typestr); 416 417 /* This interface is always enabled. */ 418 sc->sc_flags |= FE_FLAGS_ENABLED; 419 420 /* 421 * Do generic MB86960 attach. 422 */ 423 mb86960_attach(sc, MB86960_TYPE_86965, myea); 424 425 mb86960_config(sc, NULL, 0, 0); 426 427 /* Establish the interrupt handler. */ 428 isc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq[0].ir_irq, 429 IST_EDGE, IPL_NET, mb86960_intr, sc); 430 if (isc->sc_ih == NULL) 431 printf("%s: couldn't establish interrupt handler\n", 432 sc->sc_dev.dv_xname); 433 } 434
Indexes created Wed Sep 24 15:09:51 GMT 2025