if_ex_cardbus.c revision 1.23
1 /* $NetBSD: if_ex_cardbus.c,v 1.23 2001/11/13 12:51:13 lukem Exp $ */ 2 3 /* 4 * CardBus specific routines for 3Com 3C575-family CardBus ethernet adapter 5 * 6 * Copyright (c) 1998 and 1999 7 * HAYAKAWA Koichi. All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed by the author. 20 * 4. Neither the name of the author nor the names of any co-contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY HAYAKAWA KOICHI ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL TAKESHI OHASHI OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * 37 */ 38 39 #include <sys/cdefs.h> 40 __KERNEL_RCSID(0, "$NetBSD: if_ex_cardbus.c,v 1.23 2001/11/13 12:51:13 lukem Exp $"); 41 42 /* #define EX_DEBUG 4 */ /* define to report information for debugging */ 43 44 #include <sys/param.h> 45 #include <sys/systm.h> 46 #include <sys/mbuf.h> 47 #include <sys/socket.h> 48 #include <sys/ioctl.h> 49 #include <sys/errno.h> 50 #include <sys/syslog.h> 51 #include <sys/select.h> 52 #include <sys/device.h> 53 54 #include <net/if.h> 55 #include <net/if_dl.h> 56 #include <net/if_ether.h> 57 #include <net/if_media.h> 58 59 #include <machine/cpu.h> 60 #include <machine/bus.h> 61 62 #include <dev/cardbus/cardbusvar.h> 63 #include <dev/cardbus/cardbusdevs.h> 64 65 #include <dev/mii/miivar.h> 66 67 #include <dev/ic/elink3var.h> 68 #include <dev/ic/elink3reg.h> 69 #include <dev/ic/elinkxlreg.h> 70 #include <dev/ic/elinkxlvar.h> 71 72 #if defined DEBUG && !defined EX_DEBUG 73 #define EX_DEBUG 74 #endif 75 76 #if defined EX_DEBUG 77 #define DPRINTF(a) printf a 78 #else 79 #define DPRINTF(a) 80 #endif 81 82 #define CARDBUS_3C575BTX_FUNCSTAT_PCIREG CARDBUS_BASE2_REG /* means 0x18 */ 83 #define EX_CB_INTR 4 /* intr acknowledge reg. CardBus only */ 84 #define EX_CB_INTR_ACK 0x8000 /* intr acknowledge bit */ 85 86 int ex_cardbus_match __P((struct device *, struct cfdata *, void *)); 87 void ex_cardbus_attach __P((struct device *, struct device *,void *)); 88 int ex_cardbus_detach __P((struct device *, int)); 89 void ex_cardbus_intr_ack __P((struct ex_softc *)); 90 91 int ex_cardbus_enable __P((struct ex_softc *)); 92 void ex_cardbus_disable __P((struct ex_softc *)); 93 void ex_cardbus_power __P((struct ex_softc *, int)); 94 95 struct ex_cardbus_softc { 96 struct ex_softc sc_softc; 97 98 cardbus_devfunc_t sc_ct; 99 int sc_intrline; 100 u_int8_t sc_cardbus_flags; 101 #define EX_REATTACH 0x01 102 #define EX_ABSENT 0x02 103 u_int8_t sc_cardtype; 104 #define EX_CB_BOOMERANG 1 105 #define EX_CB_CYCLONE 2 106 107 /* CardBus function status space. 575B requests it. */ 108 bus_space_tag_t sc_funct; 109 bus_space_handle_t sc_funch; 110 bus_size_t sc_funcsize; 111 112 bus_size_t sc_mapsize; /* the size of mapped bus space region */ 113 114 cardbustag_t sc_tag; 115 116 int sc_csr; /* CSR bits */ 117 int sc_bar_reg; /* which BAR to use */ 118 pcireg_t sc_bar_val; /* value of the BAR */ 119 int sc_bar_reg1; /* which BAR to use */ 120 pcireg_t sc_bar_val1; /* value of the BAR */ 121 122 }; 123 124 struct cfattach ex_cardbus_ca = { 125 sizeof(struct ex_cardbus_softc), ex_cardbus_match, 126 ex_cardbus_attach, ex_cardbus_detach, ex_activate 127 }; 128 129 const struct ex_cardbus_product { 130 u_int32_t ecp_prodid; /* CardBus product ID */ 131 int ecp_flags; /* initial softc flags */ 132 pcireg_t ecp_csr; /* PCI CSR flags */ 133 int ecp_cardtype; /* card type */ 134 const char *ecp_name; /* device name */ 135 } ex_cardbus_products[] = { 136 { CARDBUS_PRODUCT_3COM_3C575TX, 137 EX_CONF_MII | EX_CONF_EEPROM_OFF | EX_CONF_EEPROM_8BIT, 138 CARDBUS_COMMAND_IO_ENABLE | CARDBUS_COMMAND_MASTER_ENABLE, 139 EX_CB_BOOMERANG, 140 "3c575-TX Ethernet" }, 141 142 { CARDBUS_PRODUCT_3COM_3C575BTX, 143 EX_CONF_90XB|EX_CONF_MII|EX_CONF_INV_LED_POLARITY | 144 EX_CONF_EEPROM_OFF | EX_CONF_EEPROM_8BIT, 145 CARDBUS_COMMAND_IO_ENABLE | CARDBUS_COMMAND_MEM_ENABLE | 146 CARDBUS_COMMAND_MASTER_ENABLE, 147 EX_CB_CYCLONE, 148 "3c575B-TX Ethernet" }, 149 150 { CARDBUS_PRODUCT_3COM_3C575CTX, 151 EX_CONF_90XB | EX_CONF_PHY_POWER | EX_CONF_EEPROM_OFF | 152 EX_CONF_EEPROM_8BIT, 153 CARDBUS_COMMAND_IO_ENABLE | CARDBUS_COMMAND_MEM_ENABLE | 154 CARDBUS_COMMAND_MASTER_ENABLE, 155 EX_CB_CYCLONE, 156 "3c575CT Ethernet" }, 157 158 { 0, 159 0, 160 0, 161 0, 162 NULL }, 163 }; 164 165 166 void ex_cardbus_setup __P((struct ex_cardbus_softc *)); 167 168 const struct ex_cardbus_product *ex_cardbus_lookup 169 __P((const struct cardbus_attach_args *)); 170 171 const struct ex_cardbus_product * 172 ex_cardbus_lookup(ca) 173 const struct cardbus_attach_args *ca; 174 { 175 const struct ex_cardbus_product *ecp; 176 177 if (CARDBUS_VENDOR(ca->ca_id) != CARDBUS_VENDOR_3COM) 178 return (NULL); 179 180 for (ecp = ex_cardbus_products; ecp->ecp_name != NULL; ecp++) 181 if (CARDBUS_PRODUCT(ca->ca_id) == ecp->ecp_prodid) 182 return (ecp); 183 return (NULL); 184 } 185 186 int 187 ex_cardbus_match(parent, cf, aux) 188 struct device *parent; 189 struct cfdata *cf; 190 void *aux; 191 { 192 struct cardbus_attach_args *ca = aux; 193 194 if (ex_cardbus_lookup(ca) != NULL) 195 return (1); 196 197 return (0); 198 } 199 200 void 201 ex_cardbus_attach(parent, self, aux) 202 struct device *parent; 203 struct device *self; 204 void *aux; 205 { 206 struct ex_cardbus_softc *csc = (void *)self; 207 struct ex_softc *sc = &csc->sc_softc; 208 struct cardbus_attach_args *ca = aux; 209 cardbus_devfunc_t ct = ca->ca_ct; 210 #if rbus 211 #else 212 cardbus_chipset_tag_t cc = ct->ct_cc; 213 #endif 214 const struct ex_cardbus_product *ecp; 215 bus_addr_t adr, adr1; 216 217 sc->ex_bustype = EX_BUS_CARDBUS; 218 sc->sc_dmat = ca->ca_dmat; 219 csc->sc_ct = ca->ca_ct; 220 csc->sc_intrline = ca->ca_intrline; 221 csc->sc_tag = ca->ca_tag; 222 223 ecp = ex_cardbus_lookup(ca); 224 if (ecp == NULL) { 225 printf("\n"); 226 panic("ex_cardbus_attach: impossible"); 227 } 228 229 printf(": 3Com %s\n", ecp->ecp_name); 230 231 sc->ex_conf = ecp->ecp_flags; 232 csc->sc_cardtype = ecp->ecp_cardtype; 233 csc->sc_csr = ecp->ecp_csr; 234 235 if (Cardbus_mapreg_map(ct, CARDBUS_BASE0_REG, CARDBUS_MAPREG_TYPE_IO, 0, 236 &sc->sc_iot, &sc->sc_ioh, &adr, &csc->sc_mapsize) == 0) { 237 #if rbus 238 #else 239 (*ct->ct_cf->cardbus_io_open)(cc, 0, adr, adr + csc->sc_mapsize); 240 #endif 241 csc->sc_bar_reg = CARDBUS_BASE0_REG; 242 csc->sc_bar_val = adr | CARDBUS_MAPREG_TYPE_IO; 243 244 if (csc->sc_cardtype == EX_CB_CYCLONE) { 245 /* Map CardBus function status window. */ 246 if (Cardbus_mapreg_map(ct, 247 CARDBUS_3C575BTX_FUNCSTAT_PCIREG, 248 CARDBUS_MAPREG_TYPE_MEM, 0, 249 &csc->sc_funct, &csc->sc_funch, 250 &adr1, &csc->sc_funcsize) == 0) { 251 252 csc->sc_bar_reg1 = 253 CARDBUS_3C575BTX_FUNCSTAT_PCIREG; 254 csc->sc_bar_val1 = 255 adr1 | CARDBUS_MAPREG_TYPE_MEM; 256 257 } else { 258 printf("%s: unable to map function " 259 "status window\n", self->dv_xname); 260 return; 261 } 262 263 /* Setup interrupt acknowledge hook */ 264 sc->intr_ack = ex_cardbus_intr_ack; 265 } 266 } 267 else { 268 printf(": can't map i/o space\n"); 269 return; 270 } 271 272 /* Power management hooks. */ 273 sc->enable = ex_cardbus_enable; 274 sc->disable = ex_cardbus_disable; 275 sc->power = ex_cardbus_power; 276 277 /* 278 * Handle power management nonsense and 279 * initialize the configuration registers. 280 */ 281 ex_cardbus_setup(csc); 282 283 ex_config(sc); 284 285 if (csc->sc_cardtype == EX_CB_CYCLONE) 286 bus_space_write_4(csc->sc_funct, csc->sc_funch, 287 EX_CB_INTR, EX_CB_INTR_ACK); 288 289 Cardbus_function_disable(csc->sc_ct); 290 } 291 292 void 293 ex_cardbus_intr_ack(sc) 294 struct ex_softc *sc; 295 { 296 struct ex_cardbus_softc *csc = (struct ex_cardbus_softc *)sc; 297 298 bus_space_write_4(csc->sc_funct, csc->sc_funch, EX_CB_INTR, 299 EX_CB_INTR_ACK); 300 } 301 302 int 303 ex_cardbus_detach(self, arg) 304 struct device *self; 305 int arg; 306 { 307 struct ex_cardbus_softc *csc = (void *)self; 308 struct ex_softc *sc = &csc->sc_softc; 309 struct cardbus_devfunc *ct = csc->sc_ct; 310 int rv; 311 312 #if defined(DIAGNOSTIC) 313 if (ct == NULL) { 314 panic("%s: data structure lacks\n", sc->sc_dev.dv_xname); 315 } 316 #endif 317 318 rv = ex_detach(sc); 319 if (rv == 0) { 320 /* 321 * Unhook the interrupt handler. 322 */ 323 cardbus_intr_disestablish(ct->ct_cc, ct->ct_cf, sc->sc_ih); 324 325 if (csc->sc_cardtype == EX_CB_CYCLONE) { 326 Cardbus_mapreg_unmap(ct, 327 CARDBUS_3C575BTX_FUNCSTAT_PCIREG, 328 csc->sc_funct, csc->sc_funch, csc->sc_funcsize); 329 } 330 331 Cardbus_mapreg_unmap(ct, CARDBUS_BASE0_REG, sc->sc_iot, 332 sc->sc_ioh, csc->sc_mapsize); 333 } 334 return (rv); 335 } 336 337 int 338 ex_cardbus_enable(sc) 339 struct ex_softc *sc; 340 { 341 struct ex_cardbus_softc *csc = (struct ex_cardbus_softc *)sc; 342 cardbus_function_tag_t cf = csc->sc_ct->ct_cf; 343 cardbus_chipset_tag_t cc = csc->sc_ct->ct_cc; 344 345 Cardbus_function_enable(csc->sc_ct); 346 ex_cardbus_setup(csc); 347 348 sc->sc_ih = cardbus_intr_establish(cc, cf, csc->sc_intrline, 349 IPL_NET, ex_intr, sc); 350 if (NULL == sc->sc_ih) { 351 printf("%s: couldn't establish interrupt\n", 352 sc->sc_dev.dv_xname); 353 return (1); 354 } 355 printf("%s: interrupting at %d\n", sc->sc_dev.dv_xname, 356 csc->sc_intrline); 357 358 return (0); 359 } 360 361 void 362 ex_cardbus_disable(sc) 363 struct ex_softc *sc; 364 { 365 struct ex_cardbus_softc *csc = (struct ex_cardbus_softc *)sc; 366 cardbus_function_tag_t cf = csc->sc_ct->ct_cf; 367 cardbus_chipset_tag_t cc = csc->sc_ct->ct_cc; 368 369 cardbus_intr_disestablish(cc, cf, sc->sc_ih); 370 sc->sc_ih = NULL; 371 372 Cardbus_function_disable(csc->sc_ct); 373 374 } 375 376 void 377 ex_cardbus_power(sc, why) 378 struct ex_softc *sc; 379 int why; 380 { 381 struct ex_cardbus_softc *csc = (void *) sc; 382 383 if (why == PWR_RESUME) { 384 /* 385 * Give the PCI configuration registers a kick 386 * in the head. 387 */ 388 #ifdef DIAGNOSTIC 389 if (sc->enabled == 0) 390 panic("ex_cardbus_power"); 391 #endif 392 ex_cardbus_setup(csc); 393 } 394 } 395 396 void 397 ex_cardbus_setup(csc) 398 struct ex_cardbus_softc *csc; 399 { 400 struct ex_softc *sc = &csc->sc_softc; 401 cardbus_devfunc_t ct = csc->sc_ct; 402 cardbus_chipset_tag_t cc = ct->ct_cc; 403 cardbus_function_tag_t cf = ct->ct_cf; 404 cardbusreg_t reg; 405 int pmreg; 406 407 /* Get it out of power save mode if needed (BIOS bugs). */ 408 if (cardbus_get_capability(cc, cf, csc->sc_tag, 409 PCI_CAP_PWRMGMT, &pmreg, 0)) { 410 reg = cardbus_conf_read(cc, cf, csc->sc_tag, pmreg + 4) & 0x03; 411 #if 1 /* XXX Probably not right for CardBus. */ 412 if (reg == 3) { 413 /* 414 * The card has lost all configuration data in 415 * this state, so punt. 416 */ 417 printf("%s: unable to wake up from power state D3\n", 418 sc->sc_dev.dv_xname); 419 return; 420 } 421 #endif 422 if (reg != 0) { 423 printf("%s: waking up from power state D%d\n", 424 sc->sc_dev.dv_xname, reg); 425 cardbus_conf_write(cc, cf, csc->sc_tag, 426 pmreg + 4, 0); 427 } 428 } 429 430 /* Make sure the right access type is on the CardBus bridge. */ 431 (ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_IO_ENABLE); 432 if (csc->sc_cardtype == EX_CB_CYCLONE) { 433 /* 434 * Make sure CardBus brigde can access memory space. Usually 435 * memory access is enabled by BIOS, but some BIOSes do not 436 * enable it. 437 */ 438 (ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_MEM_ENABLE); 439 440 /* Program the BAR */ 441 cardbus_conf_write(cc, cf, csc->sc_tag, 442 csc->sc_bar_reg1, csc->sc_bar_val1); 443 } 444 (ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_BM_ENABLE); 445 446 447 /* Program the BAR */ 448 cardbus_conf_write(cc, cf, csc->sc_tag, 449 csc->sc_bar_reg, csc->sc_bar_val); 450 451 /* Enable the appropriate bits in the CARDBUS CSR. */ 452 reg = cardbus_conf_read(cc, cf, csc->sc_tag, 453 CARDBUS_COMMAND_STATUS_REG); 454 reg |= csc->sc_csr; 455 cardbus_conf_write(cc, cf, csc->sc_tag, CARDBUS_COMMAND_STATUS_REG, 456 reg); 457 458 /* 459 * set latency timmer 460 */ 461 reg = cardbus_conf_read(cc, cf, csc->sc_tag, CARDBUS_BHLC_REG); 462 if (CARDBUS_LATTIMER(reg) < 0x20) { 463 /* at least the value of latency timer should 0x20. */ 464 DPRINTF(("if_ex_cardbus: lattimer 0x%x -> 0x20\n", 465 CARDBUS_LATTIMER(reg))); 466 reg &= ~(CARDBUS_LATTIMER_MASK << CARDBUS_LATTIMER_SHIFT); 467 reg |= (0x20 << CARDBUS_LATTIMER_SHIFT); 468 cardbus_conf_write(cc, cf, csc->sc_tag, CARDBUS_BHLC_REG, reg); 469 } 470 } 471
Indexes created Fri Sep 26 20:09:58 GMT 2025