if_ex_cardbus.c revision 1.14
1 /* $NetBSD: if_ex_cardbus.c,v 1.14 2000/05/19 04:03:58 thorpej 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 /* #define EX_DEBUG 4 */ /* define to report infomation for debugging */ 40 41 #define EX_POWER_STATIC /* do not use enable/disable functions */ 42 /* I'm waiting elinkxl.c uses 43 sc->enable and sc->disable 44 functions. */ 45 46 #include <sys/param.h> 47 #include <sys/systm.h> 48 #include <sys/mbuf.h> 49 #include <sys/socket.h> 50 #include <sys/ioctl.h> 51 #include <sys/errno.h> 52 #include <sys/syslog.h> 53 #include <sys/select.h> 54 #include <sys/device.h> 55 56 #include <net/if.h> 57 #include <net/if_dl.h> 58 #include <net/if_ether.h> 59 #include <net/if_media.h> 60 61 #include <machine/cpu.h> 62 #include <machine/bus.h> 63 64 #include <dev/cardbus/cardbusvar.h> 65 #include <dev/cardbus/cardbusdevs.h> 66 67 #include <dev/mii/miivar.h> 68 69 #include <dev/ic/elink3var.h> 70 #include <dev/ic/elink3reg.h> 71 #include <dev/ic/elinkxlreg.h> 72 #include <dev/ic/elinkxlvar.h> 73 74 #if defined DEBUG && !defined EX_DEBUG 75 #define EX_DEBUG 76 #endif 77 78 #if defined EX_DEBUG 79 #define DPRINTF(a) printf a 80 #else 81 #define DPRINTF(a) 82 #endif 83 84 #define CARDBUS_3C575BTX_FUNCSTAT_PCIREG CARDBUS_BASE2_REG /* means 0x18 */ 85 #define EX_CB_INTR 4 /* intr acknowledge reg. CardBus only */ 86 #define EX_CB_INTR_ACK 0x8000 /* intr acknowledge bit */ 87 88 int ex_cardbus_match __P((struct device *, struct cfdata *, void *)); 89 void ex_cardbus_attach __P((struct device *, struct device *,void *)); 90 int ex_cardbus_detach __P((struct device *, int)); 91 void ex_cardbus_intr_ack __P((struct ex_softc *)); 92 93 #if !defined EX_POWER_STATIC 94 int ex_cardbus_enable __P((struct ex_softc *sc)); 95 void ex_cardbus_disable __P((struct ex_softc *sc)); 96 #endif /* !defined EX_POWER_STATIC */ 97 98 struct ex_cardbus_softc { 99 struct ex_softc sc_softc; 100 101 cardbus_devfunc_t sc_ct; 102 int sc_intrline; 103 u_int8_t sc_cardbus_flags; 104 #define EX_REATTACH 0x01 105 #define EX_ABSENT 0x02 106 u_int8_t sc_cardtype; 107 #define EX_3C575 1 108 #define EX_3C575B 2 109 110 /* CardBus function status space. 575B requests it. */ 111 bus_space_tag_t sc_funct; 112 bus_space_handle_t sc_funch; 113 bus_size_t sc_funcsize; 114 115 bus_size_t sc_mapsize; /* the size of mapped bus space region */ 116 }; 117 118 struct cfattach ex_cardbus_ca = { 119 sizeof(struct ex_cardbus_softc), ex_cardbus_match, 120 ex_cardbus_attach, ex_cardbus_detach, ex_activate 121 }; 122 123 const struct ex_cardbus_product { 124 u_int32_t ecp_prodid; /* CardBus product ID */ 125 int ecp_flags; /* initial softc flags */ 126 pcireg_t ecp_csr; /* PCI CSR flags */ 127 int ecp_cardtype; /* card type */ 128 const char *ecp_name; /* device name */ 129 } ex_cardbus_products[] = { 130 { CARDBUS_PRODUCT_3COM_3C575TX, 131 EX_CONF_MII, 132 CARDBUS_COMMAND_IO_ENABLE | CARDBUS_COMMAND_MASTER_ENABLE, 133 EX_3C575, 134 "3c575-TX Ethernet" }, 135 136 { CARDBUS_PRODUCT_3COM_3C575BTX, 137 EX_CONF_90XB|EX_CONF_MII, 138 CARDBUS_COMMAND_IO_ENABLE | CARDBUS_COMMAND_MEM_ENABLE | 139 CARDBUS_COMMAND_MASTER_ENABLE, 140 EX_3C575B, 141 "3c575B-TX Ethernet" }, 142 143 { 0, 144 0, 145 0, 146 0, 147 NULL }, 148 }; 149 150 const struct ex_cardbus_product *ex_cardbus_lookup 151 __P((const struct cardbus_attach_args *)); 152 153 const struct ex_cardbus_product * 154 ex_cardbus_lookup(ca) 155 const struct cardbus_attach_args *ca; 156 { 157 const struct ex_cardbus_product *ecp; 158 159 if (CARDBUS_VENDOR(ca->ca_id) != CARDBUS_VENDOR_3COM) 160 return (NULL); 161 162 for (ecp = ex_cardbus_products; ecp->ecp_name != NULL; ecp++) 163 if (CARDBUS_PRODUCT(ca->ca_id) == ecp->ecp_prodid) 164 return (ecp); 165 return (NULL); 166 } 167 168 int 169 ex_cardbus_match(parent, cf, aux) 170 struct device *parent; 171 struct cfdata *cf; 172 void *aux; 173 { 174 struct cardbus_attach_args *ca = aux; 175 176 if (ex_cardbus_lookup(ca) != NULL) 177 return (1); 178 179 return (0); 180 } 181 182 void 183 ex_cardbus_attach(parent, self, aux) 184 struct device *parent; 185 struct device *self; 186 void *aux; 187 { 188 struct ex_cardbus_softc *psc = (void *)self; 189 struct ex_softc *sc = &psc->sc_softc; 190 struct cardbus_attach_args *ca = aux; 191 cardbus_devfunc_t ct = ca->ca_ct; 192 cardbus_chipset_tag_t cc = ct->ct_cc; 193 cardbus_function_tag_t cf = ct->ct_cf; 194 cardbusreg_t iob, command, bhlc; 195 const struct ex_cardbus_product *ecp; 196 bus_space_handle_t ioh; 197 bus_addr_t adr; 198 199 if (Cardbus_mapreg_map(ct, CARDBUS_BASE0_REG, CARDBUS_MAPREG_TYPE_IO, 0, 200 &sc->sc_iot, &ioh, &adr, &psc->sc_mapsize)) { 201 printf(": can't map i/o space\n"); 202 return; 203 } 204 205 ecp = ex_cardbus_lookup(ca); 206 if (ecp == NULL) { 207 printf("\n"); 208 panic("ex_cardbus_attach: impossible"); 209 } 210 211 printf(": 3Com %s\n", ecp->ecp_name); 212 213 #if !defined EX_POWER_STATIC 214 sc->enable = ex_cardbus_enable; 215 sc->disable = ex_cardbus_disable; 216 #else 217 sc->enable = NULL; 218 sc->disable = NULL; 219 #endif 220 sc->enabled = 1; 221 222 sc->sc_dmat = ca->ca_dmat; 223 224 sc->ex_bustype = EX_BUS_CARDBUS; 225 sc->ex_conf = ecp->ecp_flags; 226 227 iob = adr; 228 sc->sc_ioh = ioh; 229 230 #if rbus 231 #else 232 (ct->ct_cf->cardbus_io_open)(cc, 0, iob, iob + 0x40); 233 #endif 234 (ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_IO_ENABLE); 235 236 command = cardbus_conf_read(cc, cf, ca->ca_tag, 237 CARDBUS_COMMAND_STATUS_REG); 238 command |= ecp->ecp_csr; 239 psc->sc_cardtype = ecp->ecp_cardtype; 240 241 if (psc->sc_cardtype == EX_3C575B) { 242 /* Map CardBus function status window. */ 243 if (Cardbus_mapreg_map(ct, CARDBUS_3C575BTX_FUNCSTAT_PCIREG, 244 CARDBUS_MAPREG_TYPE_MEM, 0, &psc->sc_funct, 245 &psc->sc_funch, 0, &psc->sc_funcsize)) { 246 printf("%s: unable to map function status window\n", 247 self->dv_xname); 248 return; 249 } 250 251 /* 252 * Make sure CardBus brigde can access memory space. Usually 253 * memory access is enabled by BIOS, but some BIOSes do not 254 * enable it. 255 */ 256 (ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_MEM_ENABLE); 257 258 /* Setup interrupt acknowledge hook */ 259 sc->intr_ack = ex_cardbus_intr_ack; 260 } 261 262 (ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_BM_ENABLE); 263 cardbus_conf_write(cc, cf, ca->ca_tag, CARDBUS_COMMAND_STATUS_REG, 264 command); 265 266 /* 267 * set latency timmer 268 */ 269 bhlc = cardbus_conf_read(cc, cf, ca->ca_tag, CARDBUS_BHLC_REG); 270 if (CARDBUS_LATTIMER(bhlc) < 0x20) { 271 /* at least the value of latency timer should 0x20. */ 272 DPRINTF(("if_ex_cardbus: lattimer 0x%x -> 0x20\n", 273 CARDBUS_LATTIMER(bhlc))); 274 bhlc &= ~(CARDBUS_LATTIMER_MASK << CARDBUS_LATTIMER_SHIFT); 275 bhlc |= (0x20 << CARDBUS_LATTIMER_SHIFT); 276 cardbus_conf_write(cc, cf, ca->ca_tag, CARDBUS_BHLC_REG, bhlc); 277 } 278 279 psc->sc_ct = ca->ca_ct; 280 psc->sc_intrline = ca->ca_intrline; 281 282 #if defined EX_POWER_STATIC 283 /* Map and establish the interrupt. */ 284 285 sc->sc_ih = cardbus_intr_establish(cc, cf, ca->ca_intrline, IPL_NET, 286 ex_intr, psc); 287 if (sc->sc_ih == NULL) { 288 printf("%s: couldn't establish interrupt", 289 sc->sc_dev.dv_xname); 290 printf(" at %d", ca->ca_intrline); 291 printf("\n"); 292 return; 293 } 294 printf("%s: interrupting at %d\n", sc->sc_dev.dv_xname, 295 ca->ca_intrline); 296 #endif 297 298 bus_space_write_2(sc->sc_iot, sc->sc_ioh, ELINK_COMMAND, GLOBAL_RESET); 299 delay(400); 300 { 301 int i = 0; 302 while (bus_space_read_2(sc->sc_iot, sc->sc_ioh, ELINK_STATUS) & 303 S_COMMAND_IN_PROGRESS) { 304 if (++i > 10000) { 305 printf("ex: timeout %x\n", 306 bus_space_read_2(sc->sc_iot, sc->sc_ioh, 307 ELINK_STATUS)); 308 printf("ex: addr %x\n", 309 cardbus_conf_read(cc, cf, ca->ca_tag, 310 CARDBUS_BASE0_REG)); 311 return; /* emergency exit */ 312 } 313 } 314 } 315 316 ex_config(sc); 317 318 if (psc->sc_cardtype == EX_3C575B) 319 bus_space_write_4(psc->sc_funct, psc->sc_funch, 320 EX_CB_INTR, EX_CB_INTR_ACK); 321 322 #if !defined EX_POWER_STATIC 323 cardbus_function_disable(psc->sc_ct); 324 sc->enabled = 0; 325 #endif 326 } 327 328 void 329 ex_cardbus_intr_ack(sc) 330 struct ex_softc *sc; 331 { 332 struct ex_cardbus_softc *psc = (struct ex_cardbus_softc *)sc; 333 334 bus_space_write_4(psc->sc_funct, psc->sc_funch, EX_CB_INTR, 335 EX_CB_INTR_ACK); 336 } 337 338 int 339 ex_cardbus_detach(self, arg) 340 struct device *self; 341 int arg; 342 { 343 struct ex_cardbus_softc *psc = (void *)self; 344 struct ex_softc *sc = &psc->sc_softc; 345 struct cardbus_devfunc *ct = psc->sc_ct; 346 int rv; 347 348 #if defined(DIAGNOSTIC) 349 if (ct == NULL) { 350 panic("%s: data structure lacks\n", sc->sc_dev.dv_xname); 351 } 352 #endif 353 354 rv = ex_detach(sc); 355 if (rv == 0) { 356 /* 357 * Unhook the interrupt handler. 358 */ 359 cardbus_intr_disestablish(ct->ct_cc, ct->ct_cf, sc->sc_ih); 360 361 if (psc->sc_cardtype == EX_3C575B) { 362 Cardbus_mapreg_unmap(ct, 363 CARDBUS_3C575BTX_FUNCSTAT_PCIREG, 364 psc->sc_funct, psc->sc_funch, psc->sc_funcsize); 365 } 366 367 Cardbus_mapreg_unmap(ct, CARDBUS_BASE0_REG, sc->sc_iot, 368 sc->sc_ioh, psc->sc_mapsize); 369 } 370 return (rv); 371 } 372 373 #if !defined EX_POWER_STATIC 374 int 375 ex_cardbus_enable(sc) 376 struct ex_softc *sc; 377 { 378 struct ex_cardbus_softc *csc = (struct ex_cardbus_softc *)sc; 379 cardbus_function_tag_t cf = csc->sc_ct->ct_cf; 380 cardbus_chipset_tag_t cc = csc->sc_ct->ct_cc; 381 382 Cardbus_function_enable(csc->sc_ct); 383 cardbus_restore_bar(csc->sc_ct); 384 385 sc->sc_ih = cardbus_intr_establish(cc, cf, csc->sc_intrline, 386 IPL_NET, ex_intr, sc); 387 if (NULL == sc->sc_ih) { 388 printf("%s: couldn't establish interrupt\n", 389 sc->sc_dev.dv_xname); 390 return (1); 391 } 392 393 return (0); 394 } 395 396 void 397 ex_cardbus_disable(sc) 398 struct ex_softc *sc; 399 { 400 struct ex_cardbus_softc *csc = (struct ex_cardbus_softc *)sc; 401 cardbus_function_tag_t cf = csc->sc_ct->ct_cf; 402 cardbus_chipset_tag_t cc = csc->sc_ct->ct_cc; 403 404 cardbus_save_bar(csc->sc_ct); 405 406 Cardbus_function_disable(csc->sc_ct); 407 408 cardbus_intr_disestablish(cc, cf, sc->sc_ih); 409 } 410 #endif /* EX_POWER_STATIC */ 411
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