if_ex_cardbus.c revision 1.3.2.1
1 /* $NetBSD: if_ex_cardbus.c,v 1.3.2.1 2000/11/20 11:39:53 bouyer 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_CB_BOOMERANG 1 108 #define EX_CB_CYCLONE 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 | EX_CONF_EEPROM_OFF | EX_CONF_EEPROM_8BIT, 132 CARDBUS_COMMAND_IO_ENABLE | CARDBUS_COMMAND_MASTER_ENABLE, 133 EX_CB_BOOMERANG, 134 "3c575-TX Ethernet" }, 135 136 { CARDBUS_PRODUCT_3COM_3C575BTX, 137 EX_CONF_90XB|EX_CONF_MII|EX_CONF_INV_LED_POLARITY | 138 EX_CONF_EEPROM_OFF | EX_CONF_EEPROM_8BIT, 139 CARDBUS_COMMAND_IO_ENABLE | CARDBUS_COMMAND_MEM_ENABLE | 140 CARDBUS_COMMAND_MASTER_ENABLE, 141 EX_CB_CYCLONE, 142 "3c575B-TX Ethernet" }, 143 144 { CARDBUS_PRODUCT_3COM_3C575CTX, 145 EX_CONF_90XB | EX_CONF_PHY_POWER | EX_CONF_EEPROM_OFF | 146 EX_CONF_EEPROM_8BIT, 147 CARDBUS_COMMAND_IO_ENABLE | CARDBUS_COMMAND_MEM_ENABLE | 148 CARDBUS_COMMAND_MASTER_ENABLE, 149 EX_CB_CYCLONE, 150 "3c575CT Ethernet" }, 151 152 { 0, 153 0, 154 0, 155 0, 156 NULL }, 157 }; 158 159 const struct ex_cardbus_product *ex_cardbus_lookup 160 __P((const struct cardbus_attach_args *)); 161 162 const struct ex_cardbus_product * 163 ex_cardbus_lookup(ca) 164 const struct cardbus_attach_args *ca; 165 { 166 const struct ex_cardbus_product *ecp; 167 168 if (CARDBUS_VENDOR(ca->ca_id) != CARDBUS_VENDOR_3COM) 169 return (NULL); 170 171 for (ecp = ex_cardbus_products; ecp->ecp_name != NULL; ecp++) 172 if (CARDBUS_PRODUCT(ca->ca_id) == ecp->ecp_prodid) 173 return (ecp); 174 return (NULL); 175 } 176 177 int 178 ex_cardbus_match(parent, cf, aux) 179 struct device *parent; 180 struct cfdata *cf; 181 void *aux; 182 { 183 struct cardbus_attach_args *ca = aux; 184 185 if (ex_cardbus_lookup(ca) != NULL) 186 return (1); 187 188 return (0); 189 } 190 191 void 192 ex_cardbus_attach(parent, self, aux) 193 struct device *parent; 194 struct device *self; 195 void *aux; 196 { 197 struct ex_cardbus_softc *csc = (void *)self; 198 struct ex_softc *sc = &csc->sc_softc; 199 struct cardbus_attach_args *ca = aux; 200 cardbus_devfunc_t ct = ca->ca_ct; 201 cardbus_chipset_tag_t cc = ct->ct_cc; 202 cardbus_function_tag_t cf = ct->ct_cf; 203 cardbusreg_t iob, command, bhlc; 204 const struct ex_cardbus_product *ecp; 205 bus_space_handle_t ioh; 206 bus_addr_t adr; 207 208 if (Cardbus_mapreg_map(ct, CARDBUS_BASE0_REG, CARDBUS_MAPREG_TYPE_IO, 0, 209 &sc->sc_iot, &ioh, &adr, &csc->sc_mapsize)) { 210 printf(": can't map i/o space\n"); 211 return; 212 } 213 214 ecp = ex_cardbus_lookup(ca); 215 if (ecp == NULL) { 216 printf("\n"); 217 panic("ex_cardbus_attach: impossible"); 218 } 219 220 printf(": 3Com %s\n", ecp->ecp_name); 221 222 #if !defined EX_POWER_STATIC 223 sc->enable = ex_cardbus_enable; 224 sc->disable = ex_cardbus_disable; 225 #else 226 sc->enable = NULL; 227 sc->disable = NULL; 228 #endif 229 sc->enabled = 1; 230 231 sc->sc_dmat = ca->ca_dmat; 232 233 sc->ex_bustype = EX_BUS_CARDBUS; 234 sc->ex_conf = ecp->ecp_flags; 235 236 iob = adr; 237 sc->sc_ioh = ioh; 238 239 #if rbus 240 #else 241 (ct->ct_cf->cardbus_io_open)(cc, 0, iob, iob + 0x40); 242 #endif 243 (ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_IO_ENABLE); 244 245 command = cardbus_conf_read(cc, cf, ca->ca_tag, 246 CARDBUS_COMMAND_STATUS_REG); 247 command |= ecp->ecp_csr; 248 csc->sc_cardtype = ecp->ecp_cardtype; 249 250 if (csc->sc_cardtype == EX_CB_CYCLONE) { 251 /* Map CardBus function status window. */ 252 if (Cardbus_mapreg_map(ct, CARDBUS_3C575BTX_FUNCSTAT_PCIREG, 253 CARDBUS_MAPREG_TYPE_MEM, 0, &csc->sc_funct, 254 &csc->sc_funch, 0, &csc->sc_funcsize)) { 255 printf("%s: unable to map function status window\n", 256 self->dv_xname); 257 return; 258 } 259 260 /* 261 * Make sure CardBus brigde can access memory space. Usually 262 * memory access is enabled by BIOS, but some BIOSes do not 263 * enable it. 264 */ 265 (ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_MEM_ENABLE); 266 267 /* Setup interrupt acknowledge hook */ 268 sc->intr_ack = ex_cardbus_intr_ack; 269 } 270 271 (ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_BM_ENABLE); 272 cardbus_conf_write(cc, cf, ca->ca_tag, CARDBUS_COMMAND_STATUS_REG, 273 command); 274 275 /* 276 * set latency timmer 277 */ 278 bhlc = cardbus_conf_read(cc, cf, ca->ca_tag, CARDBUS_BHLC_REG); 279 if (CARDBUS_LATTIMER(bhlc) < 0x20) { 280 /* at least the value of latency timer should 0x20. */ 281 DPRINTF(("if_ex_cardbus: lattimer 0x%x -> 0x20\n", 282 CARDBUS_LATTIMER(bhlc))); 283 bhlc &= ~(CARDBUS_LATTIMER_MASK << CARDBUS_LATTIMER_SHIFT); 284 bhlc |= (0x20 << CARDBUS_LATTIMER_SHIFT); 285 cardbus_conf_write(cc, cf, ca->ca_tag, CARDBUS_BHLC_REG, bhlc); 286 } 287 288 csc->sc_ct = ca->ca_ct; 289 csc->sc_intrline = ca->ca_intrline; 290 291 #if defined EX_POWER_STATIC 292 /* Map and establish the interrupt. */ 293 294 sc->sc_ih = cardbus_intr_establish(cc, cf, ca->ca_intrline, IPL_NET, 295 ex_intr, csc); 296 if (sc->sc_ih == NULL) { 297 printf("%s: couldn't establish interrupt", 298 sc->sc_dev.dv_xname); 299 printf(" at %d", ca->ca_intrline); 300 printf("\n"); 301 return; 302 } 303 printf("%s: interrupting at %d\n", sc->sc_dev.dv_xname, 304 ca->ca_intrline); 305 #endif 306 307 ex_config(sc); 308 309 if (csc->sc_cardtype == EX_CB_CYCLONE) 310 bus_space_write_4(csc->sc_funct, csc->sc_funch, 311 EX_CB_INTR, EX_CB_INTR_ACK); 312 313 #if !defined EX_POWER_STATIC 314 cardbus_function_disable(csc->sc_ct); 315 sc->enabled = 0; 316 #endif 317 } 318 319 void 320 ex_cardbus_intr_ack(sc) 321 struct ex_softc *sc; 322 { 323 struct ex_cardbus_softc *csc = (struct ex_cardbus_softc *)sc; 324 325 bus_space_write_4(csc->sc_funct, csc->sc_funch, EX_CB_INTR, 326 EX_CB_INTR_ACK); 327 } 328 329 int 330 ex_cardbus_detach(self, arg) 331 struct device *self; 332 int arg; 333 { 334 struct ex_cardbus_softc *csc = (void *)self; 335 struct ex_softc *sc = &csc->sc_softc; 336 struct cardbus_devfunc *ct = csc->sc_ct; 337 int rv; 338 339 #if defined(DIAGNOSTIC) 340 if (ct == NULL) { 341 panic("%s: data structure lacks\n", sc->sc_dev.dv_xname); 342 } 343 #endif 344 345 rv = ex_detach(sc); 346 if (rv == 0) { 347 /* 348 * Unhook the interrupt handler. 349 */ 350 cardbus_intr_disestablish(ct->ct_cc, ct->ct_cf, sc->sc_ih); 351 352 if (csc->sc_cardtype == EX_CB_CYCLONE) { 353 Cardbus_mapreg_unmap(ct, 354 CARDBUS_3C575BTX_FUNCSTAT_PCIREG, 355 csc->sc_funct, csc->sc_funch, csc->sc_funcsize); 356 } 357 358 Cardbus_mapreg_unmap(ct, CARDBUS_BASE0_REG, sc->sc_iot, 359 sc->sc_ioh, csc->sc_mapsize); 360 } 361 return (rv); 362 } 363 364 #if !defined EX_POWER_STATIC 365 int 366 ex_cardbus_enable(sc) 367 struct ex_softc *sc; 368 { 369 struct ex_cardbus_softc *csc = (struct ex_cardbus_softc *)sc; 370 cardbus_function_tag_t cf = csc->sc_ct->ct_cf; 371 cardbus_chipset_tag_t cc = csc->sc_ct->ct_cc; 372 373 Cardbus_function_enable(csc->sc_ct); 374 cardbus_restore_bar(csc->sc_ct); 375 376 sc->sc_ih = cardbus_intr_establish(cc, cf, csc->sc_intrline, 377 IPL_NET, ex_intr, sc); 378 if (NULL == sc->sc_ih) { 379 printf("%s: couldn't establish interrupt\n", 380 sc->sc_dev.dv_xname); 381 return (1); 382 } 383 384 return (0); 385 } 386 387 void 388 ex_cardbus_disable(sc) 389 struct ex_softc *sc; 390 { 391 struct ex_cardbus_softc *csc = (struct ex_cardbus_softc *)sc; 392 cardbus_function_tag_t cf = csc->sc_ct->ct_cf; 393 cardbus_chipset_tag_t cc = csc->sc_ct->ct_cc; 394 395 cardbus_save_bar(csc->sc_ct); 396 397 Cardbus_function_disable(csc->sc_ct); 398 399 cardbus_intr_disestablish(cc, cf, sc->sc_ih); 400 } 401 #endif /* EX_POWER_STATIC */ 402
Indexes created Mon Oct 13 05:10:05 GMT 2025