if_ate.c revision 1.33
1 /* $NetBSD: if_ate.c,v 1.33 2002/09/28 18:19:08 tsutsui 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 1.33 2002/09/28 18:19:08 tsutsui 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 const struct cfattach ate_isa_ca = { 67 sizeof(struct ate_softc), ate_match, ate_attach 68 }; 69 70 struct fe_simple_probe_struct { 71 u_char port; /* Offset from the base I/O address. */ 72 u_char mask; /* Bits to be checked. */ 73 u_char bits; /* Values to be compared against. */ 74 }; 75 76 static __inline__ int fe_simple_probe __P((bus_space_tag_t, 77 bus_space_handle_t, struct fe_simple_probe_struct const *)); 78 static int ate_find __P((bus_space_tag_t, bus_space_handle_t, int *, 79 int *)); 80 static int ate_detect __P((bus_space_tag_t, bus_space_handle_t, 81 u_int8_t enaddr[ETHER_ADDR_LEN])); 82 83 static int const ate_iomap[8] = { 84 0x260, 0x280, 0x2A0, 0x240, 0x340, 0x320, 0x380, 0x300 85 }; 86 #define NATE_IOMAP (sizeof (ate_iomap) / sizeof (ate_iomap[0])) 87 #define ATE_NPORTS 0x20 88 89 /* 90 * Hardware probe routines. 91 */ 92 93 /* 94 * Determine if the device is present. 95 */ 96 int 97 ate_match(parent, match, aux) 98 struct device *parent; 99 struct cfdata *match; 100 void *aux; 101 { 102 struct isa_attach_args *ia = aux; 103 bus_space_tag_t iot = ia->ia_iot; 104 bus_space_handle_t ioh; 105 int i, iobase, irq, rv = 0; 106 u_int8_t myea[ETHER_ADDR_LEN]; 107 108 if (ia->ia_nio < 1) 109 return (0); 110 if (ia->ia_nirq < 1) 111 return (0); 112 113 if (ISA_DIRECT_CONFIG(ia)) 114 return (0); 115 116 /* Disallow wildcarded values. */ 117 if (ia->ia_io[0].ir_addr == ISACF_PORT_DEFAULT) 118 return (0); 119 120 /* 121 * See if the sepcified address is valid for MB86965A JLI mode. 122 */ 123 for (i = 0; i < NATE_IOMAP; i++) 124 if (ate_iomap[i] == ia->ia_io[0].ir_addr) 125 break; 126 if (i == NATE_IOMAP) { 127 #ifdef ATE_DEBUG 128 printf("ate_match: unknown iobase 0x%x\n", ia->ia_iobase); 129 #endif 130 return (0); 131 } 132 133 /* Map i/o space. */ 134 if (bus_space_map(iot, ia->ia_io[0].ir_addr, ATE_NPORTS, 0, &ioh)) { 135 #ifdef ATE_DEBUG 136 printf("ate_match: couldn't map iospace 0x%x\n", 137 ia->ia_io[0].ir_addr); 138 #endif 139 return (0); 140 } 141 142 if (ate_find(iot, ioh, &iobase, &irq) == 0) { 143 #ifdef ATE_DEBUG 144 printf("ate_match: ate_find failed\n"); 145 #endif 146 goto out; 147 } 148 149 if (iobase != ia->ia_io[0].ir_addr) { 150 #ifdef ATE_DEBUG 151 printf("ate_match: unexpected iobase in board: 0x%x\n", 152 ia->ia_iobase); 153 #endif 154 goto out; 155 } 156 157 if (ate_detect(iot, ioh, myea) == 0) { /* XXX necessary? */ 158 #ifdef ATE_DEBUG 159 printf("ate_match: ate_detect failed\n"); 160 #endif 161 goto out; 162 } 163 164 if (ia->ia_irq[0].ir_irq != ISACF_IRQ_DEFAULT) { 165 if (ia->ia_irq[0].ir_irq != irq) { 166 printf("ate_match: irq mismatch; " 167 "kernel configured %d != board configured %d\n", 168 ia->ia_irq[0].ir_irq, irq); 169 goto out; 170 } 171 } else 172 ia->ia_irq[0].ir_irq = irq; 173 174 ia->ia_nio = 1; 175 ia->ia_io[0].ir_size = ATE_NPORTS; 176 177 ia->ia_nirq = 1; 178 179 ia->ia_niomem = 0; 180 ia->ia_ndrq = 0; 181 182 rv = 1; 183 184 out: 185 bus_space_unmap(iot, ioh, ATE_NPORTS); 186 return (rv); 187 } 188 189 /* 190 * Check for specific bits in specific registers have specific values. 191 */ 192 static __inline__ int 193 fe_simple_probe (iot, ioh, sp) 194 bus_space_tag_t iot; 195 bus_space_handle_t ioh; 196 struct fe_simple_probe_struct const *sp; 197 { 198 u_int8_t val; 199 struct fe_simple_probe_struct const *p; 200 201 for (p = sp; p->mask != 0; p++) { 202 val = bus_space_read_1(iot, ioh, p->port); 203 if ((val & p->mask) != p->bits) { 204 #ifdef ATE_DEBUG 205 printf("fe_simple_probe: %x & %x != %x\n", 206 val, p->mask, p->bits); 207 #endif 208 return (0); 209 } 210 } 211 212 return (1); 213 } 214 215 /* 216 * Hardware (vendor) specific probe routines. 217 */ 218 219 /* 220 * Probe and initialization for Allied-Telesis AT1700/RE2000 series. 221 */ 222 static int 223 ate_find(iot, ioh, iobase, irq) 224 bus_space_tag_t iot; 225 bus_space_handle_t ioh; 226 int *iobase, *irq; 227 { 228 u_char eeprom[FE_EEPROM_SIZE]; 229 int n; 230 231 static int const irqmap[4][4] = { 232 { 3, 4, 5, 9 }, 233 { 10, 11, 12, 15 }, 234 { 3, 11, 5, 15 }, 235 { 10, 11, 14, 15 }, 236 }; 237 static struct fe_simple_probe_struct const probe_table[] = { 238 { FE_DLCR2, 0x70, 0x00 }, 239 { FE_DLCR4, 0x08, 0x00 }, 240 { FE_DLCR5, 0x80, 0x00 }, 241 #if 0 242 { FE_BMPR16, 0x1B, 0x00 }, 243 { FE_BMPR17, 0x7F, 0x00 }, 244 #endif 245 { 0 } 246 }; 247 248 #if ATE_DEBUG >= 4 249 log(LOG_INFO, "ate_find: probe (0x%x) for ATI\n", iobase); 250 #if 0 251 fe_dump(LOG_INFO, sc); 252 #endif 253 #endif 254 255 /* 256 * We should test if MB86965A is on the base address now. 257 * Unfortunately, it is very hard to probe it reliably, since 258 * we have no way to reset the chip under software control. 259 * On cold boot, we could check the "signature" bit patterns 260 * described in the Fujitsu document. On warm boot, however, 261 * we can predict almost nothing about register values. 262 */ 263 if (!fe_simple_probe(iot, ioh, probe_table)) 264 return (0); 265 266 /* Check if our I/O address matches config info on 86965. */ 267 n = (bus_space_read_1(iot, ioh, FE_BMPR19) & FE_B19_ADDR) 268 >> FE_B19_ADDR_SHIFT; 269 *iobase = ate_iomap[n]; 270 271 /* 272 * We are now almost sure we have an AT1700 at the given 273 * address. So, read EEPROM through 86965. We have to write 274 * into LSI registers to read from EEPROM. I want to avoid it 275 * at this stage, but I cannot test the presence of the chip 276 * any further without reading EEPROM. FIXME. 277 */ 278 ate_read_eeprom(iot, ioh, eeprom); 279 280 /* Make sure that config info in EEPROM and 86965 agree. */ 281 if (eeprom[FE_EEPROM_CONF] != bus_space_read_1(iot, ioh, FE_BMPR19)) { 282 #ifdef DIAGNOSTIC 283 printf("ate_find: " 284 "incorrect configration in eeprom and chip\n"); 285 #endif 286 return (0); 287 } 288 289 /* 290 * Try to determine IRQ settings. 291 * Different models use different ranges of IRQs. 292 */ 293 n = (bus_space_read_1(iot, ioh, FE_BMPR19) & FE_B19_IRQ) 294 >> FE_B19_IRQ_SHIFT; 295 switch (eeprom[FE_ATI_EEP_REVISION] & 0xf0) { 296 case 0x30: 297 *irq = irqmap[3][n]; 298 break; 299 case 0x10: 300 case 0x50: 301 *irq = irqmap[2][n]; 302 break; 303 case 0x40: 304 case 0x60: 305 if (eeprom[FE_ATI_EEP_MAGIC] & 0x04) { 306 *irq = irqmap[1][n]; 307 break; 308 } 309 default: 310 *irq = irqmap[0][n]; 311 break; 312 } 313 314 return (1); 315 } 316 317 /* 318 * Determine type and ethernet address. 319 */ 320 static int 321 ate_detect(iot, ioh, enaddr) 322 bus_space_tag_t iot; 323 bus_space_handle_t ioh; 324 u_int8_t enaddr[ETHER_ADDR_LEN]; 325 { 326 u_char eeprom[FE_EEPROM_SIZE]; 327 int type; 328 329 /* Get our station address from EEPROM. */ 330 ate_read_eeprom(iot, ioh, eeprom); 331 memcpy(enaddr, eeprom + FE_ATI_EEP_ADDR, ETHER_ADDR_LEN); 332 333 /* Make sure we got a valid station address. */ 334 if ((enaddr[0] & 0x03) != 0x00 || 335 (enaddr[0] == 0x00 && enaddr[1] == 0x00 && enaddr[2] == 0x00)) { 336 #ifdef ATE_DEBUG 337 printf("fmv_detect: invalid ethernet address\n"); 338 #endif 339 return (0); 340 } 341 342 /* 343 * Determine the card type. 344 */ 345 switch (eeprom[FE_ATI_EEP_MODEL]) { 346 case FE_ATI_MODEL_AT1700T: 347 type = FE_TYPE_AT1700T; 348 break; 349 case FE_ATI_MODEL_AT1700BT: 350 type = FE_TYPE_AT1700BT; 351 break; 352 case FE_ATI_MODEL_AT1700FT: 353 type = FE_TYPE_AT1700FT; 354 break; 355 case FE_ATI_MODEL_AT1700AT: 356 type = FE_TYPE_AT1700AT; 357 break; 358 default: 359 type = FE_TYPE_RE2000; 360 break; 361 } 362 363 return (type); 364 } 365 366 void 367 ate_attach(parent, self, aux) 368 struct device *parent, *self; 369 void *aux; 370 { 371 struct ate_softc *isc = (struct ate_softc *)self; 372 struct mb86960_softc *sc = &isc->sc_mb86960; 373 struct isa_attach_args *ia = aux; 374 bus_space_tag_t iot = ia->ia_iot; 375 bus_space_handle_t ioh; 376 u_int8_t myea[ETHER_ADDR_LEN]; 377 const char *typestr; 378 int type; 379 380 printf("\n"); 381 382 /* Map i/o space. */ 383 if (bus_space_map(iot, ia->ia_io[0].ir_addr, ATE_NPORTS, 0, &ioh)) { 384 printf("%s: can't map i/o space\n", sc->sc_dev.dv_xname); 385 return; 386 } 387 388 sc->sc_bst = iot; 389 sc->sc_bsh = ioh; 390 391 /* Determine the card type and get ethernet address. */ 392 type = ate_detect(iot, ioh, myea); 393 switch (type) { 394 case FE_TYPE_AT1700T: 395 typestr = "AT-1700T"; 396 break; 397 case FE_TYPE_AT1700BT: 398 typestr = "AT-1700BT"; 399 break; 400 case FE_TYPE_AT1700FT: 401 typestr = "AT-1700FT"; 402 break; 403 case FE_TYPE_AT1700AT: 404 typestr = "AT-1700AT"; 405 break; 406 case FE_TYPE_RE2000: 407 typestr = "unknown (RE-2000?)"; 408 break; 409 410 default: 411 /* Unknown card type: maybe a new model, but... */ 412 printf("%s: where did the card go?!\n", sc->sc_dev.dv_xname); 413 panic("unknown card"); 414 } 415 416 printf("%s: %s Ethernet\n", sc->sc_dev.dv_xname, typestr); 417 418 /* This interface is always enabled. */ 419 sc->sc_flags |= FE_FLAGS_ENABLED; 420 421 /* 422 * Do generic MB86960 attach. 423 */ 424 mb86960_attach(sc, MB86960_TYPE_86965, myea); 425 426 mb86960_config(sc, NULL, 0, 0); 427 428 /* Establish the interrupt handler. */ 429 isc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq[0].ir_irq, 430 IST_EDGE, IPL_NET, mb86960_intr, sc); 431 if (isc->sc_ih == NULL) 432 printf("%s: couldn't establish interrupt handler\n", 433 sc->sc_dev.dv_xname); 434 } 435
Indexes created Thu Oct 02 14:10:14 GMT 2025