if_ex_cardbus.c revision 1.9
1 /* $NetBSD: if_ex_cardbus.c,v 1.9 1999/11/17 08:49:16 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 }; 114 115 struct cfattach ex_cardbus_ca = { 116 sizeof(struct ex_cardbus_softc), ex_cardbus_match, 117 ex_cardbus_attach, ex_cardbus_detach 118 }; 119 120 const struct ex_cardbus_product { 121 u_int32_t ecp_prodid; /* CardBus product ID */ 122 int ecp_flags; /* initial softc flags */ 123 pcireg_t ecp_csr; /* PCI CSR flags */ 124 int ecp_cardtype; /* card type */ 125 const char *ecp_name; /* device name */ 126 } ex_cardbus_products[] = { 127 { CARDBUS_PRODUCT_3COM_3C575TX, 128 EX_CONF_MII, 129 CARDBUS_COMMAND_IO_ENABLE | CARDBUS_COMMAND_MASTER_ENABLE, 130 EX_3C575, 131 "3c575-TX Ethernet" }, 132 133 { CARDBUS_PRODUCT_3COM_3C575BTX, 134 EX_CONF_90XB|EX_CONF_MII, 135 CARDBUS_COMMAND_IO_ENABLE | CARDBUS_COMMAND_MEM_ENABLE | 136 CARDBUS_COMMAND_MASTER_ENABLE, 137 EX_3C575B, 138 "3c575B-TX Ethernet" }, 139 140 { 0, 141 0, 142 0, 143 NULL }, 144 }; 145 146 const struct ex_cardbus_product *ex_cardbus_lookup 147 __P((const struct cardbus_attach_args *)); 148 149 const struct ex_cardbus_product * 150 ex_cardbus_lookup(ca) 151 const struct cardbus_attach_args *ca; 152 { 153 const struct ex_cardbus_product *ecp; 154 155 if (CARDBUS_VENDOR(ca->ca_id) != CARDBUS_VENDOR_3COM) 156 return (NULL); 157 158 for (ecp = ex_cardbus_products; ecp->ecp_name != NULL; ecp++) 159 if (CARDBUS_PRODUCT(ca->ca_id) == ecp->ecp_prodid) 160 return (ecp); 161 return (NULL); 162 } 163 164 int 165 ex_cardbus_match(parent, cf, aux) 166 struct device *parent; 167 struct cfdata *cf; 168 void *aux; 169 { 170 struct cardbus_attach_args *ca = aux; 171 172 if (ex_cardbus_lookup(ca) != NULL) 173 return (1); 174 175 return (0); 176 } 177 178 void 179 ex_cardbus_attach(parent, self, aux) 180 struct device *parent; 181 struct device *self; 182 void *aux; 183 { 184 struct ex_cardbus_softc *psc = (void *)self; 185 struct ex_softc *sc = &psc->sc_softc; 186 struct cardbus_attach_args *ca = aux; 187 cardbus_devfunc_t ct = ca->ca_ct; 188 cardbus_chipset_tag_t cc = ct->ct_cc; 189 cardbus_function_tag_t cf = ct->ct_cf; 190 cardbusreg_t iob, command, bhlc; 191 const struct ex_cardbus_product *ecp; 192 bus_space_handle_t ioh; 193 bus_addr_t adr; 194 195 if (Cardbus_mapreg_map(ct, CARDBUS_BASE0_REG, CARDBUS_MAPREG_TYPE_IO, 0, 196 &(sc->sc_iot), &ioh, &adr, NULL)) { 197 printf(": can't map i/o space\n"); 198 return; 199 } 200 201 ecp = ex_cardbus_lookup(ca); 202 if (ecp == NULL) { 203 printf("\n"); 204 panic("ex_cardbus_attach: impossible"); 205 } 206 207 printf(": 3Com %s\n", ecp->ecp_name); 208 209 #if !defined EX_POWER_STATIC 210 sc->enable = ex_cardbus_enable; 211 sc->disable = ex_cardbus_disable; 212 #else 213 sc->enable = NULL; 214 sc->disable = NULL; 215 #endif 216 sc->enabled = 1; 217 218 sc->sc_dmat = ca->ca_dmat; 219 220 sc->ex_bustype = EX_BUS_CARDBUS; 221 sc->ex_conf = ecp->ecp_flags; 222 223 iob = adr; 224 sc->sc_ioh = ioh; 225 226 #if rbus 227 #else 228 (ct->ct_cf->cardbus_io_open)(cc, 0, iob, iob + 0x40); 229 #endif 230 (ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_IO_ENABLE); 231 232 command = cardbus_conf_read(cc, cf, ca->ca_tag, 233 CARDBUS_COMMAND_STATUS_REG); 234 command |= ecp->ecp_csr; 235 psc->sc_cardtype = ecp->ecp_cardtype; 236 237 if (psc->sc_cardtype == EX_3C575B) { 238 /* Map CardBus function status window. */ 239 if (Cardbus_mapreg_map(ct, CARDBUS_3C575BTX_FUNCSTAT_PCIREG, 240 CARDBUS_MAPREG_TYPE_MEM, 0, &psc->sc_funct, 241 &psc->sc_funch, 0, NULL)) { 242 printf("%s: unable to map function status window\n", 243 self->dv_xname); 244 return; 245 } 246 247 /* 248 * Make sure CardBus brigde can access memory space. Usually 249 * memory access is enabled by BIOS, but some BIOSes do not 250 * enable it. 251 */ 252 (ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_MEM_ENABLE); 253 254 /* Setup interrupt acknowledge hook */ 255 sc->intr_ack = ex_cardbus_intr_ack; 256 } 257 258 cardbus_conf_write(cc, cf, ca->ca_tag, CARDBUS_COMMAND_STATUS_REG, 259 command); 260 261 /* 262 * set latency timmer 263 */ 264 bhlc = cardbus_conf_read(cc, cf, ca->ca_tag, CARDBUS_BHLC_REG); 265 if (CARDBUS_LATTIMER(bhlc) < 0x20) { 266 /* at least the value of latency timer should 0x20. */ 267 DPRINTF(("if_ex_cardbus: lattimer 0x%x -> 0x20\n", 268 CARDBUS_LATTIMER(bhlc))); 269 bhlc &= ~(CARDBUS_LATTIMER_MASK << CARDBUS_LATTIMER_SHIFT); 270 bhlc |= (0x20 << CARDBUS_LATTIMER_SHIFT); 271 cardbus_conf_write(cc, cf, ca->ca_tag, CARDBUS_BHLC_REG, bhlc); 272 } 273 274 psc->sc_ct = ca->ca_ct; 275 psc->sc_intrline = ca->ca_intrline; 276 277 #if defined EX_POWER_STATIC 278 /* Map and establish the interrupt. */ 279 280 sc->sc_ih = cardbus_intr_establish(cc, cf, ca->ca_intrline, IPL_NET, 281 ex_intr, psc); 282 if (sc->sc_ih == NULL) { 283 printf("%s: couldn't establish interrupt", 284 sc->sc_dev.dv_xname); 285 printf(" at %d", ca->ca_intrline); 286 printf("\n"); 287 return; 288 } 289 printf("%s: interrupting at %d\n", sc->sc_dev.dv_xname, 290 ca->ca_intrline); 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", 301 bus_space_read_2(sc->sc_iot, sc->sc_ioh, 302 ELINK_STATUS)); 303 printf("ex: addr %x\n", 304 cardbus_conf_read(cc, cf, ca->ca_tag, 305 CARDBUS_BASE0_REG)); 306 return; /* emergency exit */ 307 } 308 } 309 } 310 311 ex_config(sc); 312 313 if (psc->sc_cardtype == EX_3C575B) 314 bus_space_write_4(psc->sc_funct, psc->sc_funch, 315 EX_CB_INTR, EX_CB_INTR_ACK); 316 317 #if !defined EX_POWER_STATIC 318 cardbus_function_disable(psc->sc_ct); 319 sc->enabled = 0; 320 #endif 321 } 322 323 void 324 ex_cardbus_intr_ack(sc) 325 struct ex_softc *sc; 326 { 327 struct ex_cardbus_softc *psc = (struct ex_cardbus_softc *)sc; 328 329 bus_space_write_4(psc->sc_funct, psc->sc_funch, EX_CB_INTR, 330 EX_CB_INTR_ACK); 331 } 332 333 int 334 ex_cardbus_detach(self, arg) 335 struct device *self; 336 int arg; 337 { 338 struct ex_cardbus_softc *psc = (void *)self; 339 struct ex_softc *sc = &psc->sc_softc; 340 cardbus_function_tag_t cf = psc->sc_ct->ct_cf; 341 cardbus_chipset_tag_t cc = psc->sc_ct->ct_cc; 342 343 /* 344 * XXX Currently, no detach. 345 */ 346 printf("- ex_cardbus_detach\n"); 347 348 cardbus_intr_disestablish(cc, cf, sc->sc_ih); 349 350 sc->enabled = 0; 351 352 return (EBUSY); 353 } 354 355 #if !defined EX_POWER_STATIC 356 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, 368 IPL_NET, ex_intr, sc); 369 if (NULL == sc->sc_ih) { 370 printf("%s: couldn't establish interrupt\n", 371 sc->sc_dev.dv_xname); 372 return (1); 373 } 374 375 return (0); 376 } 377 378 void 379 ex_cardbus_disable(sc) 380 struct ex_softc *sc; 381 { 382 struct ex_cardbus_softc *csc = (struct ex_cardbus_softc *)sc; 383 cardbus_function_tag_t cf = csc->sc_ct->ct_cf; 384 cardbus_chipset_tag_t cc = csc->sc_ct->ct_cc; 385 386 cardbus_save_bar(csc->sc_ct); 387 388 Cardbus_function_disable(csc->sc_ct); 389 390 cardbus_intr_disestablish(cc, cf, sc->sc_ih); 391 } 392 #endif /* EX_POWER_STATIC */ 393
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