if_ex_cardbus.c revision 1.3.4.1
1 /* $NetBSD: if_ex_cardbus.c,v 1.3.4.1 1999/11/15 00:40:20 fvdl 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 40 /* #define EX_DEBUG 4 */ /* define to report infomation for debugging */ 41 42 #define EX_POWER_STATIC /* do not use enable/disable functions */ 43 /* I'm waiting elinkxl.c uses 44 sc->enable and sc->disable 45 functions. */ 46 47 #include <sys/param.h> 48 #include <sys/systm.h> 49 #include <sys/kernel.h> 50 #include <sys/conf.h> 51 #include <sys/ioctl.h> 52 #include <sys/device.h> 53 #include <sys/errno.h> 54 #include <sys/syslog.h> 55 /* #include <sys/signalvar.h> */ 56 #include <sys/mbuf.h> 57 #include <sys/socket.h> 58 #include <sys/ioctl.h> 59 #include <sys/select.h> 60 #include <sys/queue.h> 61 62 #include <net/if.h> 63 #include <net/if_dl.h> 64 #include <net/if_media.h> 65 #include <net/if_types.h> 66 #include <net/netisr.h> 67 #include <net/if_ether.h> 68 69 #include <machine/cpu.h> 70 #include <machine/pio.h> 71 #include <machine/bus.h> 72 #if defined pciinc 73 #include <dev/pci/pcidevs.h> 74 #endif 75 76 #include <dev/cardbus/cardbusvar.h> 77 #include <dev/cardbus/cardbusdevs.h> 78 79 #include <dev/mii/miivar.h> 80 81 #include <dev/ic/elink3var.h> 82 #include <dev/ic/elink3reg.h> 83 #include <dev/ic/elinkxlreg.h> 84 #include <dev/ic/elinkxlvar.h> 85 86 #if defined DEBUG && !defined EX_DEBUG 87 #define EX_DEBUG 88 #endif 89 90 #if defined EX_DEBUG 91 #define STATIC 92 #define DPRINTF(a) printf a 93 #else 94 #define STATIC static 95 #define DPRINTF(a) 96 #endif 97 98 #define CARDBUS_3C575BTX_FUNCSTAT_PCIREG CARDBUS_BASE2_REG /* means 0x18 */ 99 #define EX_CB_INTR 4 /* intr acknowledge reg. CardBus only */ 100 #define EX_CB_INTR_ACK 0x8000 /* intr acknowledge bit */ 101 102 103 /* Definitions, most of them has turned out to be unneccesary, but here they 104 * are anyway. 105 */ 106 107 108 STATIC int ex_cardbus_match __P((struct device *, struct cfdata *, void *)); 109 STATIC void ex_cardbus_attach __P((struct device *, struct device *,void *)); 110 STATIC int ex_cardbus_detach __P((struct device *, int)); 111 STATIC void ex_cardbus_intr_ack __P((struct ex_softc *)); 112 113 #if 0 114 static void expoll __P((void *arg)); 115 #endif 116 117 #if !defined EX_POWER_STATIC 118 STATIC int ex_cardbus_enable __P((struct ex_softc *sc)); 119 STATIC void ex_cardbus_disable __P((struct ex_softc *sc)); 120 #endif /* !defined EX_POWER_STATIC */ 121 122 123 struct ex_cardbus_softc { 124 struct ex_softc sc_softc; 125 126 cardbus_devfunc_t sc_ct; 127 int sc_intrline; 128 u_int8_t sc_cardbus_flags; 129 #define EX_REATTACH 0x01 130 #define EX_ABSENT 0x02 131 u_int8_t sc_cardtype; 132 #define EX_3C575 1 133 #define EX_3C575B 2 134 135 /* CardBus function status space. 575B requests it. */ 136 bus_space_tag_t sc_funct; 137 bus_space_handle_t sc_funch; 138 }; 139 140 struct cfattach ex_cardbus_ca = { 141 sizeof(struct ex_cardbus_softc), ex_cardbus_match, 142 ex_cardbus_attach, ex_cardbus_detach 143 }; 144 145 146 147 STATIC int 148 ex_cardbus_match(parent, cf, aux) 149 struct device *parent; 150 struct cfdata *cf; 151 void *aux; 152 { 153 struct cardbus_attach_args *ca = aux; 154 155 if ((CARDBUS_VENDOR(ca->ca_id) == CARDBUS_VENDOR_3COM)) { 156 if (CARDBUS_PRODUCT(ca->ca_id) == CARDBUS_PRODUCT_3COM_3C575TX 157 || CARDBUS_PRODUCT(ca->ca_id) == CARDBUS_PRODUCT_3COM_3C575BTX) { 158 return 1; 159 } 160 } 161 return 0; 162 } 163 164 165 166 167 168 169 STATIC void 170 ex_cardbus_attach(parent, self, aux) 171 struct device *parent; 172 struct device *self; 173 void *aux; 174 { 175 struct ex_cardbus_softc *psc = (void *)self; 176 struct ex_softc *sc = &psc->sc_softc; 177 struct cardbus_attach_args *ca = aux; 178 cardbus_devfunc_t ct = ca->ca_ct; 179 cardbus_chipset_tag_t cc = ct->ct_cc; 180 cardbus_function_tag_t cf = ct->ct_cf; 181 cardbusreg_t iob, command, bhlc; 182 bus_space_handle_t ioh; 183 bus_addr_t adr; 184 185 186 if (Cardbus_mapreg_map(ct, CARDBUS_BASE0_REG, CARDBUS_MAPREG_TYPE_IO, 0, 187 &(sc->sc_iot), &ioh, &adr, NULL)) { 188 panic("io alloc in ex_attach_cardbus\n"); 189 } 190 iob = adr; 191 sc->sc_ioh = ioh; 192 193 #if rbus 194 #else 195 (ct->ct_cf->cardbus_io_open)(cc, 0, iob, iob + 0x40); 196 #endif 197 (ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_IO_ENABLE); 198 199 /* enable the card */ 200 command = cardbus_conf_read(cc, cf, ca->ca_tag, CARDBUS_COMMAND_STATUS_REG); 201 202 /* Card specific configuration */ 203 switch (CARDBUS_PRODUCT(ca->ca_id)) { 204 case CARDBUS_PRODUCT_3COM_3C575TX: 205 psc->sc_cardtype = EX_3C575; 206 command |= (CARDBUS_COMMAND_IO_ENABLE | CARDBUS_COMMAND_MASTER_ENABLE); 207 printf(": 3Com 3C575TX (boomerang)\n"); 208 break; 209 case CARDBUS_PRODUCT_3COM_3C575BTX: 210 psc->sc_cardtype = EX_3C575B; 211 command |= (CARDBUS_COMMAND_IO_ENABLE | 212 CARDBUS_COMMAND_MEM_ENABLE | CARDBUS_COMMAND_MASTER_ENABLE); 213 214 /* Cardbus function status window */ 215 if (Cardbus_mapreg_map(ct, CARDBUS_3C575BTX_FUNCSTAT_PCIREG, 216 CARDBUS_MAPREG_TYPE_MEM, 0, 217 &psc->sc_funct, &psc->sc_funch, 0, NULL)) { 218 panic("mem alloc in ex_attach_cardbus\n"); 219 } 220 221 /* 222 * Make sure CardBus brigde can access memory space. Usually 223 * memory access is enabled by BIOS, but some BIOSes do not enable 224 * it. 225 */ 226 (ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_MEM_ENABLE); 227 228 /* Setup interrupt acknowledge hook */ 229 sc->intr_ack = ex_cardbus_intr_ack; 230 231 printf(": 3Com 3C575BTX (cyclone)\n"); 232 break; 233 } 234 235 cardbus_conf_write(cc, cf, ca->ca_tag, CARDBUS_COMMAND_STATUS_REG, command); 236 237 /* 238 * set latency timmer 239 */ 240 bhlc = cardbus_conf_read(cc, cf, ca->ca_tag, CARDBUS_BHLC_REG); 241 if (CARDBUS_LATTIMER(bhlc) < 0x20) { 242 /* at least the value of latency timer should 0x20. */ 243 DPRINTF(("if_ex_cardbus: lattimer 0x%x -> 0x20\n", 244 CARDBUS_LATTIMER(bhlc))); 245 bhlc &= ~(CARDBUS_LATTIMER_MASK << CARDBUS_LATTIMER_SHIFT); 246 bhlc |= (0x20 << CARDBUS_LATTIMER_SHIFT); 247 cardbus_conf_write(cc, cf, ca->ca_tag, CARDBUS_BHLC_REG, bhlc); 248 } 249 250 sc->sc_dmat = ca->ca_dmat; 251 sc->ex_bustype = EX_BUS_CARDBUS; 252 psc->sc_ct = ca->ca_ct; 253 psc->sc_intrline = ca->ca_intrline; 254 255 switch (psc->sc_cardtype) { 256 case EX_3C575: 257 sc->ex_conf = EX_CONF_MII|EX_CONF_INTPHY; 258 break; 259 case EX_3C575B: 260 sc->ex_conf = EX_CONF_90XB|EX_CONF_MII|EX_CONF_INTPHY; 261 break; 262 } 263 264 #if !defined EX_POWER_STATIC 265 sc->enable = ex_cardbus_enable; 266 sc->disable = ex_cardbus_disable; 267 #else 268 sc->enable = NULL; 269 sc->disable = NULL; 270 #endif 271 sc->enabled = 1; 272 273 274 #if defined EX_POWER_STATIC 275 /* Map and establish the interrupt. */ 276 277 sc->sc_ih = cardbus_intr_establish(cc, cf, ca->ca_intrline, IPL_NET, 278 ex_intr, psc); 279 if (sc->sc_ih == NULL) { 280 printf("%s: couldn't establish interrupt", 281 sc->sc_dev.dv_xname); 282 printf(" at %d", ca->ca_intrline); 283 printf("\n"); 284 return; 285 } 286 printf("%s: interrupting at %d\n", sc->sc_dev.dv_xname, ca->ca_intrline); 287 #endif 288 289 #if 0 290 timeout(expoll, sc, hz/20); /* XXX */ 291 #endif 292 293 bus_space_write_2(sc->sc_iot, sc->sc_ioh, ELINK_COMMAND, GLOBAL_RESET); 294 delay(400); 295 { 296 int i = 0; 297 while (bus_space_read_2((sc)->sc_iot, (sc)->sc_ioh, ELINK_STATUS) \ 298 & S_COMMAND_IN_PROGRESS) { 299 if (++i > 10000) { 300 printf("ex: timeout %x\n", bus_space_read_2((sc)->sc_iot, (sc)->sc_ioh, ELINK_STATUS)); 301 printf("ex: addr %x\n", cardbus_conf_read(cc, cf, ca->ca_tag, CARDBUS_BASE0_REG)); 302 return; /* emargency exit */ 303 } 304 } 305 } 306 307 ex_config(sc); /* I'm BOOMERANG or CYCLONE */ 308 309 if (psc->sc_cardtype == EX_3C575B) { 310 bus_space_write_4(psc->sc_funct, psc->sc_funch, EX_CB_INTR, EX_CB_INTR_ACK); 311 } 312 313 #if !defined EX_POWER_STATIC 314 cardbus_function_disable(psc->sc_ct); 315 sc->enabled = 0; 316 #endif 317 return; 318 } 319 320 321 322 STATIC void 323 ex_cardbus_intr_ack(sc) 324 struct ex_softc *sc; 325 { 326 struct ex_cardbus_softc *psc = (struct ex_cardbus_softc *)sc; 327 bus_space_write_4 (psc->sc_funct, psc->sc_funch, EX_CB_INTR, EX_CB_INTR_ACK); 328 } 329 330 331 STATIC int 332 ex_cardbus_detach(self, arg) 333 struct device *self; 334 int arg; 335 { 336 struct ex_cardbus_softc *psc = (void *)self; 337 struct ex_softc *sc = &psc->sc_softc; 338 cardbus_function_tag_t cf = psc->sc_ct->ct_cf; 339 cardbus_chipset_tag_t cc = psc->sc_ct->ct_cc; 340 341 /* 342 * XXX Currently, no detach. 343 */ 344 printf("- ex_cardbus_detach\n"); 345 346 cardbus_intr_disestablish(cc, cf, sc->sc_ih); 347 348 sc->enabled = 0; 349 350 return EBUSY; 351 } 352 353 354 355 #if !defined EX_POWER_STATIC 356 STATIC int 357 ex_cardbus_enable(sc) 358 struct ex_softc *sc; 359 { 360 struct ex_cardbus_softc *csc = (struct ex_cardbus_softc *)sc; 361 cardbus_function_tag_t cf = csc->sc_ct->ct_cf; 362 cardbus_chipset_tag_t cc = csc->sc_ct->ct_cc; 363 364 Cardbus_function_enable(csc->sc_ct); 365 cardbus_restore_bar(csc->sc_ct); 366 367 sc->sc_ih = cardbus_intr_establish(cc, cf, csc->sc_intrline, IPL_NET, ex_intr, sc); 368 if (NULL == sc->sc_ih) { 369 printf("%s: couldn't establish interrupt\n", sc->sc_dev.dv_xname); 370 return 1; 371 } 372 373 /* printf("ex_pccard_enable: %s turned on\n", sc->sc_dev.dv_xname); */ 374 return 0; 375 } 376 377 378 379 380 STATIC void 381 ex_cardbus_disable(sc) 382 struct ex_softc *sc; 383 { 384 struct ex_cardbus_softc *csc = (struct ex_cardbus_softc *)sc; 385 cardbus_function_tag_t cf = csc->sc_ct->ct_cf; 386 cardbus_chipset_tag_t cc = csc->sc_ct->ct_cc; 387 388 cardbus_save_bar(csc->sc_ct); 389 390 Cardbus_function_disable(csc->sc_ct); 391 392 cardbus_intr_disestablish(cc, cf, sc->sc_ih); 393 } 394 395 #endif /* EX_POWER_STATIC */ 396
Indexes created Tue Oct 14 01:09:49 GMT 2025