Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/dev/pcmcia/if_ep_pcmcia.c
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1 /* $NetBSD: if_ep_pcmcia.c,v 1.41 2002/10/02 16:52:11 thorpej Exp $ */ 2 3 /*- 4 * Copyright (c) 1998, 2000 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 9 * NASA Ames Research Center. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the NetBSD 22 * Foundation, Inc. and its contributors. 23 * 4. Neither the name of The NetBSD Foundation nor the names of its 24 * contributors may be used to endorse or promote products derived 25 * from this software without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 */ 39 40 /* 41 * Copyright (c) 1997 Marc Horowitz. All rights reserved. 42 * 43 * Redistribution and use in source and binary forms, with or without 44 * modification, are permitted provided that the following conditions 45 * are met: 46 * 1. Redistributions of source code must retain the above copyright 47 * notice, this list of conditions and the following disclaimer. 48 * 2. Redistributions in binary form must reproduce the above copyright 49 * notice, this list of conditions and the following disclaimer in the 50 * documentation and/or other materials provided with the distribution. 51 * 3. All advertising materials mentioning features or use of this software 52 * must display the following acknowledgement: 53 * This product includes software developed by Marc Horowitz. 54 * 4. The name of the author may not be used to endorse or promote products 55 * derived from this software without specific prior written permission. 56 * 57 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 58 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 59 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 60 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 61 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 62 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 63 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 64 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 65 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 66 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 67 */ 68 69 #include <sys/cdefs.h> 70 __KERNEL_RCSID(0, "$NetBSD: if_ep_pcmcia.c,v 1.41 2002/10/02 16:52:11 thorpej Exp $"); 71 72 #include <sys/param.h> 73 #include <sys/systm.h> 74 #include <sys/mbuf.h> 75 #include <sys/socket.h> 76 #include <sys/ioctl.h> 77 #include <sys/errno.h> 78 #include <sys/syslog.h> 79 #include <sys/select.h> 80 #include <sys/device.h> 81 82 #include <net/if.h> 83 #include <net/if_dl.h> 84 #include <net/if_ether.h> 85 #include <net/if_media.h> 86 87 #include <machine/cpu.h> 88 #include <machine/bus.h> 89 #include <machine/intr.h> 90 91 #include <dev/mii/miivar.h> 92 93 #include <dev/ic/elink3var.h> 94 #include <dev/ic/elink3reg.h> 95 96 #include <dev/pcmcia/pcmciareg.h> 97 #include <dev/pcmcia/pcmciavar.h> 98 #include <dev/pcmcia/pcmciadevs.h> 99 100 int ep_pcmcia_match __P((struct device *, struct cfdata *, void *)); 101 void ep_pcmcia_attach __P((struct device *, struct device *, void *)); 102 int ep_pcmcia_detach __P((struct device *, int)); 103 104 int ep_pcmcia_get_enaddr __P((struct pcmcia_tuple *, void *)); 105 int ep_pcmcia_enable __P((struct ep_softc *)); 106 void ep_pcmcia_disable __P((struct ep_softc *)); 107 108 int ep_pcmcia_enable1 __P((struct ep_softc *)); 109 void ep_pcmcia_disable1 __P((struct ep_softc *)); 110 111 struct ep_pcmcia_softc { 112 struct ep_softc sc_ep; /* real "ep" softc */ 113 114 /* PCMCIA-specific goo */ 115 struct pcmcia_io_handle sc_pcioh; /* PCMCIA i/o space info */ 116 int sc_io_window; /* our i/o window */ 117 struct pcmcia_function *sc_pf; /* our PCMCIA function */ 118 }; 119 120 CFATTACH_DECL(ep_pcmcia, sizeof(struct ep_pcmcia_softc), 121 ep_pcmcia_match, ep_pcmcia_attach, ep_pcmcia_detach, ep_activate); 122 123 const struct ep_pcmcia_product { 124 struct pcmcia_product epp_product; 125 u_short epp_chipset; /* 3Com chipset used */ 126 int epp_flags; /* initial softc flags */ 127 } ep_pcmcia_products[] = { 128 { { PCMCIA_STR_3COM_3C562, PCMCIA_VENDOR_3COM, 129 PCMCIA_PRODUCT_3COM_3C562, 0 }, 130 ELINK_CHIPSET_3C509, 0 }, 131 132 { { PCMCIA_STR_3COM_3C589, PCMCIA_VENDOR_3COM, 133 PCMCIA_PRODUCT_3COM_3C589, 0 }, 134 ELINK_CHIPSET_3C509, 0 }, 135 136 { { PCMCIA_STR_3COM_3CXEM556, PCMCIA_VENDOR_3COM, 137 PCMCIA_PRODUCT_3COM_3CXEM556, 0 }, 138 ELINK_CHIPSET_3C509, 0 }, 139 140 { { PCMCIA_STR_3COM_3CXEM556INT, PCMCIA_VENDOR_3COM, 141 PCMCIA_PRODUCT_3COM_3CXEM556INT, 0 }, 142 ELINK_CHIPSET_3C509, 0 }, 143 144 { { PCMCIA_STR_3COM_3C574, PCMCIA_VENDOR_3COM, 145 PCMCIA_PRODUCT_3COM_3C574, 0 }, 146 ELINK_CHIPSET_ROADRUNNER, ELINK_FLAGS_MII }, 147 148 { { PCMCIA_STR_3COM_3CCFEM556BI, PCMCIA_VENDOR_3COM, 149 PCMCIA_PRODUCT_3COM_3CCFEM556BI, 0 }, 150 ELINK_CHIPSET_ROADRUNNER, ELINK_FLAGS_MII }, 151 152 { { PCMCIA_STR_3COM_3C1, PCMCIA_VENDOR_3COM, 153 PCMCIA_PRODUCT_3COM_3C1, 0 }, 154 ELINK_CHIPSET_3C509, 0 }, 155 156 { { NULL } } 157 }; 158 159 int 160 ep_pcmcia_match(parent, match, aux) 161 struct device *parent; 162 struct cfdata *match; 163 void *aux; 164 { 165 struct pcmcia_attach_args *pa = aux; 166 167 if (pcmcia_product_lookup(pa, 168 (const struct pcmcia_product *)ep_pcmcia_products, 169 sizeof ep_pcmcia_products[0], NULL) != NULL) 170 return (1); 171 172 return (0); 173 } 174 175 int 176 ep_pcmcia_enable(sc) 177 struct ep_softc *sc; 178 { 179 struct ep_pcmcia_softc *psc = (struct ep_pcmcia_softc *) sc; 180 struct pcmcia_function *pf = psc->sc_pf; 181 int error; 182 183 if ((error = ep_pcmcia_enable1(sc)) != 0) 184 return error; 185 186 /* establish the interrupt. */ 187 sc->sc_ih = pcmcia_intr_establish(pf, IPL_NET, epintr, sc); 188 if (sc->sc_ih == NULL) { 189 printf("%s: couldn't establish interrupt\n", 190 sc->sc_dev.dv_xname); 191 ep_pcmcia_disable1(sc); 192 return (1); 193 } 194 195 return 0; 196 } 197 198 int 199 ep_pcmcia_enable1(sc) 200 struct ep_softc *sc; 201 { 202 struct ep_pcmcia_softc *psc = (struct ep_pcmcia_softc *) sc; 203 struct pcmcia_function *pf = psc->sc_pf; 204 int ret; 205 206 if ((ret = pcmcia_function_enable(pf))) 207 return (ret); 208 209 if ((psc->sc_pf->sc->card.product == PCMCIA_PRODUCT_3COM_3C562) || 210 (psc->sc_pf->sc->card.product == PCMCIA_PRODUCT_3COM_3CXEM556) || 211 (psc->sc_pf->sc->card.product == PCMCIA_PRODUCT_3COM_3CXEM556INT)) { 212 int reg; 213 214 /* turn off the serial-disable bit */ 215 216 reg = pcmcia_ccr_read(pf, PCMCIA_CCR_OPTION); 217 if (reg & 0x08) { 218 reg &= ~0x08; 219 pcmcia_ccr_write(pf, PCMCIA_CCR_OPTION, reg); 220 } 221 222 } 223 224 return (ret); 225 } 226 227 void 228 ep_pcmcia_disable(sc) 229 struct ep_softc *sc; 230 { 231 struct ep_pcmcia_softc *psc = (struct ep_pcmcia_softc *) sc; 232 233 /* 234 * We must disestablish the interrupt before disabling the function, 235 * because on a multifunction card the interrupt disestablishment 236 * accesses CCR registers. 237 */ 238 pcmcia_intr_disestablish(psc->sc_pf, sc->sc_ih); 239 ep_pcmcia_disable1(sc); 240 } 241 242 void 243 ep_pcmcia_disable1(sc) 244 struct ep_softc *sc; 245 { 246 struct ep_pcmcia_softc *psc = (struct ep_pcmcia_softc *) sc; 247 248 pcmcia_function_disable(psc->sc_pf); 249 } 250 251 void 252 ep_pcmcia_attach(parent, self, aux) 253 struct device *parent, *self; 254 void *aux; 255 { 256 struct ep_pcmcia_softc *psc = (void *) self; 257 struct ep_softc *sc = &psc->sc_ep; 258 struct pcmcia_attach_args *pa = aux; 259 struct pcmcia_config_entry *cfe; 260 const struct ep_pcmcia_product *epp; 261 u_int8_t myla[ETHER_ADDR_LEN]; 262 u_int8_t *enaddr = NULL; 263 int i; 264 265 psc->sc_pf = pa->pf; 266 cfe = SIMPLEQ_FIRST(&pa->pf->cfe_head); 267 268 /* Enable the card. */ 269 pcmcia_function_init(pa->pf, cfe); 270 if (ep_pcmcia_enable1(sc)) { 271 printf(": function enable failed\n"); 272 goto enable_failed; 273 } 274 sc->enabled = 1; 275 276 if (cfe->num_memspace != 0) { 277 printf(": unexpected number of memory spaces %d should be 0\n", 278 cfe->num_memspace); 279 goto ioalloc_failed; 280 } 281 282 if (cfe->num_iospace != 1) { 283 printf(": unexpected number of I/O spaces %d should be 1\n", 284 cfe->num_iospace); 285 goto ioalloc_failed; 286 } 287 288 if (pa->product == PCMCIA_PRODUCT_3COM_3C562) { 289 /* 290 * the 3c562 can only use 0x??00-0x??7f 291 * according to the Linux driver 292 */ 293 294 /* 295 * 3c562 i/o may decodes address line not only A0-3 296 * but also A7. Anyway, we must sweep at most 297 * [0x0000, 0x0100). The address higher is given by a 298 * pcmcia bridge. But pcmcia bus-space allocation 299 * function implies cards will decode 10-bit address 300 * line. So we must search [0x0000, 0x0400). 301 * 302 * XXX: We must not check the bunch of I/O space range 303 * [0x400*n, 0x300 + 0x400*n) because they are 304 * reserved for legacy ISA devices and their alias 305 * images on PC/AT architecture. 306 */ 307 for (i = 0x0300; i < 0x0380; i += 0x10) { 308 if (pcmcia_io_alloc(pa->pf, i, cfe->iospace[0].length, 309 0, &psc->sc_pcioh) == 0) 310 break; 311 } 312 if (i == 0x0380) { 313 printf(": can't allocate i/o space\n"); 314 goto ioalloc_failed; 315 } 316 } else { 317 if (pcmcia_io_alloc(pa->pf, 0, cfe->iospace[0].length, 318 cfe->iospace[0].length, &psc->sc_pcioh)) { 319 printf(": can't allocate i/o space\n"); 320 goto ioalloc_failed; 321 } 322 } 323 324 sc->sc_iot = psc->sc_pcioh.iot; 325 sc->sc_ioh = psc->sc_pcioh.ioh; 326 327 if (pcmcia_io_map(pa->pf, ((cfe->flags & PCMCIA_CFE_IO16) ? 328 PCMCIA_WIDTH_IO16 : PCMCIA_WIDTH_IO8), 0, cfe->iospace[0].length, 329 &psc->sc_pcioh, &psc->sc_io_window)) { 330 printf(": can't map i/o space\n"); 331 goto iomap_failed; 332 } 333 334 switch (pa->product) { 335 case PCMCIA_PRODUCT_3COM_3C562: 336 /* 337 * 3c562a-c use this; 3c562d does it in the regular way. 338 * we might want to check the revision and produce a warning 339 * in the future. 340 */ 341 /* FALLTHROUGH */ 342 case PCMCIA_PRODUCT_3COM_3C574: 343 case PCMCIA_PRODUCT_3COM_3CCFEM556BI: 344 /* 345 * Apparently, some 3c574s do it this way, as well. 346 */ 347 if (pcmcia_scan_cis(parent, ep_pcmcia_get_enaddr, myla)) 348 enaddr = myla; 349 break; 350 } 351 352 epp = (const struct ep_pcmcia_product *)pcmcia_product_lookup(pa, 353 (const struct pcmcia_product *)ep_pcmcia_products, 354 sizeof ep_pcmcia_products[0], NULL); 355 if (epp == NULL) 356 panic("ep_pcmcia_attach: impossible"); 357 358 printf(": %s\n", epp->epp_product.pp_name); 359 360 sc->bustype = ELINK_BUS_PCMCIA; 361 sc->ep_flags = epp->epp_flags; 362 363 sc->enable = ep_pcmcia_enable; 364 sc->disable = ep_pcmcia_disable; 365 366 if (epconfig(sc, epp->epp_chipset, enaddr)) { 367 printf("%s: couldn't configure controller\n", 368 sc->sc_dev.dv_xname); 369 goto config_failed; 370 } 371 372 sc->enabled = 0; 373 ep_pcmcia_disable1(sc); 374 return; 375 376 config_failed: 377 /* Unmap our i/o window. */ 378 pcmcia_io_unmap(psc->sc_pf, psc->sc_io_window); 379 380 iomap_failed: 381 /* Free our i/o space. */ 382 pcmcia_io_free(psc->sc_pf, &psc->sc_pcioh); 383 384 ioalloc_failed: 385 sc->enabled = 0; 386 ep_pcmcia_disable1(sc); 387 388 enable_failed: 389 psc->sc_io_window = -1; 390 } 391 392 int 393 ep_pcmcia_detach(self, flags) 394 struct device *self; 395 int flags; 396 { 397 struct ep_pcmcia_softc *psc = (struct ep_pcmcia_softc *)self; 398 int rv; 399 400 if (psc->sc_io_window == -1) 401 /* Nothing to detach. */ 402 return (0); 403 404 rv = ep_detach(self, flags); 405 if (rv != 0) 406 return (rv); 407 408 /* Unmap our i/o window. */ 409 pcmcia_io_unmap(psc->sc_pf, psc->sc_io_window); 410 411 /* Free our i/o space. */ 412 pcmcia_io_free(psc->sc_pf, &psc->sc_pcioh); 413 414 return (0); 415 } 416 417 int 418 ep_pcmcia_get_enaddr(tuple, arg) 419 struct pcmcia_tuple *tuple; 420 void *arg; 421 { 422 u_int8_t *myla = arg; 423 int i; 424 425 /* this is 3c562a-c magic */ 426 if (tuple->code == 0x88) { 427 if (tuple->length < ETHER_ADDR_LEN) 428 return (0); 429 430 for (i = 0; i < ETHER_ADDR_LEN; i += 2) { 431 myla[i] = pcmcia_tuple_read_1(tuple, i + 1); 432 myla[i + 1] = pcmcia_tuple_read_1(tuple, i); 433 } 434 435 return (1); 436 } 437 return (0); 438 }
Cache object: ddd4a95ed6651a5b73562c4076860b58
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