if_ex_cardbus.c revision 1.13
1 /* $NetBSD: if_ex_cardbus.c,v 1.13 2000/03/07 00:32:52 mycroft 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 NULL }, 147 }; 148 149 const struct ex_cardbus_product *ex_cardbus_lookup 150 __P((const struct cardbus_attach_args *)); 151 152 const struct ex_cardbus_product * 153 ex_cardbus_lookup(ca) 154 const struct cardbus_attach_args *ca; 155 { 156 const struct ex_cardbus_product *ecp; 157 158 if (CARDBUS_VENDOR(ca->ca_id) != CARDBUS_VENDOR_3COM) 159 return (NULL); 160 161 for (ecp = ex_cardbus_products; ecp->ecp_name != NULL; ecp++) 162 if (CARDBUS_PRODUCT(ca->ca_id) == ecp->ecp_prodid) 163 return (ecp); 164 return (NULL); 165 } 166 167 int 168 ex_cardbus_match(parent, cf, aux) 169 struct device *parent; 170 struct cfdata *cf; 171 void *aux; 172 { 173 struct cardbus_attach_args *ca = aux; 174 175 if (ex_cardbus_lookup(ca) != NULL) 176 return (1); 177 178 return (0); 179 } 180 181 void 182 ex_cardbus_attach(parent, self, aux) 183 struct device *parent; 184 struct device *self; 185 void *aux; 186 { 187 struct ex_cardbus_softc *psc = (void *)self; 188 struct ex_softc *sc = &psc->sc_softc; 189 struct cardbus_attach_args *ca = aux; 190 cardbus_devfunc_t ct = ca->ca_ct; 191 cardbus_chipset_tag_t cc = ct->ct_cc; 192 cardbus_function_tag_t cf = ct->ct_cf; 193 cardbusreg_t iob, command, bhlc; 194 const struct ex_cardbus_product *ecp; 195 bus_space_handle_t ioh; 196 bus_addr_t adr; 197 198 if (Cardbus_mapreg_map(ct, CARDBUS_BASE0_REG, CARDBUS_MAPREG_TYPE_IO, 0, 199 &sc->sc_iot, &ioh, &adr, &psc->sc_mapsize)) { 200 printf(": can't map i/o space\n"); 201 return; 202 } 203 204 ecp = ex_cardbus_lookup(ca); 205 if (ecp == NULL) { 206 printf("\n"); 207 panic("ex_cardbus_attach: impossible"); 208 } 209 210 printf(": 3Com %s\n", ecp->ecp_name); 211 212 #if !defined EX_POWER_STATIC 213 sc->enable = ex_cardbus_enable; 214 sc->disable = ex_cardbus_disable; 215 #else 216 sc->enable = NULL; 217 sc->disable = NULL; 218 #endif 219 sc->enabled = 1; 220 221 sc->sc_dmat = ca->ca_dmat; 222 223 sc->ex_bustype = EX_BUS_CARDBUS; 224 sc->ex_conf = ecp->ecp_flags; 225 226 iob = adr; 227 sc->sc_ioh = ioh; 228 229 #if rbus 230 #else 231 (ct->ct_cf->cardbus_io_open)(cc, 0, iob, iob + 0x40); 232 #endif 233 (ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_IO_ENABLE); 234 235 command = cardbus_conf_read(cc, cf, ca->ca_tag, 236 CARDBUS_COMMAND_STATUS_REG); 237 command |= ecp->ecp_csr; 238 psc->sc_cardtype = ecp->ecp_cardtype; 239 240 if (psc->sc_cardtype == EX_3C575B) { 241 /* Map CardBus function status window. */ 242 if (Cardbus_mapreg_map(ct, CARDBUS_3C575BTX_FUNCSTAT_PCIREG, 243 CARDBUS_MAPREG_TYPE_MEM, 0, &psc->sc_funct, 244 &psc->sc_funch, 0, &psc->sc_funcsize)) { 245 printf("%s: unable to map function status window\n", 246 self->dv_xname); 247 return; 248 } 249 250 /* 251 * Make sure CardBus brigde can access memory space. Usually 252 * memory access is enabled by BIOS, but some BIOSes do not 253 * enable it. 254 */ 255 (ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_MEM_ENABLE); 256 257 /* Setup interrupt acknowledge hook */ 258 sc->intr_ack = ex_cardbus_intr_ack; 259 } 260 261 (ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_BM_ENABLE); 262 cardbus_conf_write(cc, cf, ca->ca_tag, CARDBUS_COMMAND_STATUS_REG, 263 command); 264 265 /* 266 * set latency timmer 267 */ 268 bhlc = cardbus_conf_read(cc, cf, ca->ca_tag, CARDBUS_BHLC_REG); 269 if (CARDBUS_LATTIMER(bhlc) < 0x20) { 270 /* at least the value of latency timer should 0x20. */ 271 DPRINTF(("if_ex_cardbus: lattimer 0x%x -> 0x20\n", 272 CARDBUS_LATTIMER(bhlc))); 273 bhlc &= ~(CARDBUS_LATTIMER_MASK << CARDBUS_LATTIMER_SHIFT); 274 bhlc |= (0x20 << CARDBUS_LATTIMER_SHIFT); 275 cardbus_conf_write(cc, cf, ca->ca_tag, CARDBUS_BHLC_REG, bhlc); 276 } 277 278 psc->sc_ct = ca->ca_ct; 279 psc->sc_intrline = ca->ca_intrline; 280 281 #if defined EX_POWER_STATIC 282 /* Map and establish the interrupt. */ 283 284 sc->sc_ih = cardbus_intr_establish(cc, cf, ca->ca_intrline, IPL_NET, 285 ex_intr, psc); 286 if (sc->sc_ih == NULL) { 287 printf("%s: couldn't establish interrupt", 288 sc->sc_dev.dv_xname); 289 printf(" at %d", ca->ca_intrline); 290 printf("\n"); 291 return; 292 } 293 printf("%s: interrupting at %d\n", sc->sc_dev.dv_xname, 294 ca->ca_intrline); 295 #endif 296 297 bus_space_write_2(sc->sc_iot, sc->sc_ioh, ELINK_COMMAND, GLOBAL_RESET); 298 delay(400); 299 { 300 int i = 0; 301 while (bus_space_read_2(sc->sc_iot, sc->sc_ioh, ELINK_STATUS) & 302 S_COMMAND_IN_PROGRESS) { 303 if (++i > 10000) { 304 printf("ex: timeout %x\n", 305 bus_space_read_2(sc->sc_iot, sc->sc_ioh, 306 ELINK_STATUS)); 307 printf("ex: addr %x\n", 308 cardbus_conf_read(cc, cf, ca->ca_tag, 309 CARDBUS_BASE0_REG)); 310 return; /* emergency exit */ 311 } 312 } 313 } 314 315 ex_config(sc); 316 317 if (psc->sc_cardtype == EX_3C575B) 318 bus_space_write_4(psc->sc_funct, psc->sc_funch, 319 EX_CB_INTR, EX_CB_INTR_ACK); 320 321 #if !defined EX_POWER_STATIC 322 cardbus_function_disable(psc->sc_ct); 323 sc->enabled = 0; 324 #endif 325 } 326 327 void 328 ex_cardbus_intr_ack(sc) 329 struct ex_softc *sc; 330 { 331 struct ex_cardbus_softc *psc = (struct ex_cardbus_softc *)sc; 332 333 bus_space_write_4(psc->sc_funct, psc->sc_funch, EX_CB_INTR, 334 EX_CB_INTR_ACK); 335 } 336 337 int 338 ex_cardbus_detach(self, arg) 339 struct device *self; 340 int arg; 341 { 342 struct ex_cardbus_softc *psc = (void *)self; 343 struct ex_softc *sc = &psc->sc_softc; 344 struct cardbus_devfunc *ct = psc->sc_ct; 345 int rv; 346 347 #if defined(DIAGNOSTIC) 348 if (ct == NULL) { 349 panic("%s: data structure lacks\n", sc->sc_dev.dv_xname); 350 } 351 #endif 352 353 rv = ex_detach(sc); 354 if (rv == 0) { 355 /* 356 * Unhook the interrupt handler. 357 */ 358 cardbus_intr_disestablish(ct->ct_cc, ct->ct_cf, sc->sc_ih); 359 360 if (psc->sc_cardtype == EX_3C575B) { 361 Cardbus_mapreg_unmap(ct, 362 CARDBUS_3C575BTX_FUNCSTAT_PCIREG, 363 psc->sc_funct, psc->sc_funch, psc->sc_funcsize); 364 } 365 366 Cardbus_mapreg_unmap(ct, CARDBUS_BASE0_REG, sc->sc_iot, 367 sc->sc_ioh, psc->sc_mapsize); 368 } 369 return (rv); 370 } 371 372 #if !defined EX_POWER_STATIC 373 int 374 ex_cardbus_enable(sc) 375 struct ex_softc *sc; 376 { 377 struct ex_cardbus_softc *csc = (struct ex_cardbus_softc *)sc; 378 cardbus_function_tag_t cf = csc->sc_ct->ct_cf; 379 cardbus_chipset_tag_t cc = csc->sc_ct->ct_cc; 380 381 Cardbus_function_enable(csc->sc_ct); 382 cardbus_restore_bar(csc->sc_ct); 383 384 sc->sc_ih = cardbus_intr_establish(cc, cf, csc->sc_intrline, 385 IPL_NET, ex_intr, sc); 386 if (NULL == sc->sc_ih) { 387 printf("%s: couldn't establish interrupt\n", 388 sc->sc_dev.dv_xname); 389 return (1); 390 } 391 392 return (0); 393 } 394 395 void 396 ex_cardbus_disable(sc) 397 struct ex_softc *sc; 398 { 399 struct ex_cardbus_softc *csc = (struct ex_cardbus_softc *)sc; 400 cardbus_function_tag_t cf = csc->sc_ct->ct_cf; 401 cardbus_chipset_tag_t cc = csc->sc_ct->ct_cc; 402 403 cardbus_save_bar(csc->sc_ct); 404 405 Cardbus_function_disable(csc->sc_ct); 406 407 cardbus_intr_disestablish(cc, cf, sc->sc_ih); 408 } 409 #endif /* EX_POWER_STATIC */ 410
Indexes created Sat Sep 27 22:09:54 GMT 2025