if_rtk_cardbus.c revision 1.11
1 /* $NetBSD: if_rtk_cardbus.c,v 1.11 2002/10/02 16:33:42 thorpej Exp $ */ 2 3 /* 4 * Copyright (c) 2000 Masanori Kanaoka 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 /* 31 * if_rtk_cardbus.c: 32 * Cardbus specific routines for RealTek 8139 ethernet adapter. 33 * Tested for 34 * - elecom-Laneed LD-10/100CBA (Accton MPX5030) 35 * - MELCO LPC3-TX-CB (RealTek 8139) 36 */ 37 38 #include <sys/cdefs.h> 39 __KERNEL_RCSID(0, "$NetBSD: if_rtk_cardbus.c,v 1.11 2002/10/02 16:33:42 thorpej Exp $"); 40 41 #include "opt_inet.h" 42 #include "opt_ns.h" 43 #include "bpfilter.h" 44 #include "rnd.h" 45 46 #include <sys/param.h> 47 #include <sys/systm.h> 48 #include <sys/callout.h> 49 #include <sys/device.h> 50 #include <sys/sockio.h> 51 #include <sys/mbuf.h> 52 #include <sys/malloc.h> 53 #include <sys/kernel.h> 54 #include <sys/socket.h> 55 56 #include <net/if.h> 57 #include <net/if_arp.h> 58 #include <net/if_ether.h> 59 #include <net/if_dl.h> 60 #include <net/if_media.h> 61 #ifdef INET 62 #include <netinet/in.h> 63 #include <netinet/if_inarp.h> 64 #endif 65 #ifdef NS 66 #include <netns/ns.h> 67 #include <netns/ns_if.h> 68 #endif 69 70 #if NBPFILTER > 0 71 #include <net/bpf.h> 72 #endif 73 #if NRND > 0 74 #include <sys/rnd.h> 75 #endif 76 77 #include <machine/bus.h> 78 79 #include <dev/pci/pcireg.h> 80 #include <dev/pci/pcivar.h> 81 #include <dev/pci/pcidevs.h> 82 83 #include <dev/cardbus/cardbusvar.h> 84 #include <dev/cardbus/cardbusdevs.h> 85 86 #include <dev/mii/mii.h> 87 #include <dev/mii/miivar.h> 88 89 /* 90 * Default to using PIO access for this driver. On SMP systems, 91 * there appear to be problems with memory mapped mode: it looks like 92 * doing too many memory mapped access back to back in rapid succession 93 * can hang the bus. I'm inclined to blame this on crummy design/construction 94 * on the part of RealTek. Memory mapped mode does appear to work on 95 * uniprocessor systems though. 96 */ 97 #define RTK_USEIOSPACE 98 99 #include <dev/ic/rtl81x9reg.h> 100 #include <dev/ic/rtl81x9var.h> 101 102 /* 103 * Various supported device vendors/types and their names. 104 */ 105 static const struct rtk_type rtk_cardbus_devs[] = { 106 { CARDBUS_VENDOR_ACCTON, CARDBUS_PRODUCT_ACCTON_MPX5030, 107 "Accton MPX 5030/5038 10/100BaseTX", 108 RTK_8139 }, 109 { CARDBUS_VENDOR_DLINK, CARDBUS_PRODUCT_DLINK_DFE_690TXD, 110 "D-Link DFE-690TXD 10/100BaseTX", RTK_8139 }, 111 { CARDBUS_VENDOR_REALTEK, CARDBUS_PRODUCT_REALTEK_RT8138, 112 "RealTek 8138 10/100BaseTX", RTK_8139 }, 113 { CARDBUS_VENDOR_REALTEK, CARDBUS_PRODUCT_REALTEK_RT8139, 114 "RealTek 8139 10/100BaseTX", RTK_8139 }, 115 { CARDBUS_VENDOR_COREGA, CARDBUS_PRODUCT_COREGA_CB_TXD, 116 "Corega FEther CB-TXD 10/100BaseTX", RTK_8139 }, 117 { 0, 0, NULL, 0 } 118 }; 119 120 static int rtk_cardbus_match __P((struct device *, struct cfdata *, void *)); 121 static void rtk_cardbus_attach __P((struct device *, struct device *, void *)); 122 static int rtk_cardbus_detach __P((struct device *, int)); 123 124 struct rtk_cardbus_softc { 125 struct rtk_softc sc_rtk; /* real rtk softc */ 126 127 /* CardBus-specific goo. */ 128 void *sc_ih; 129 cardbus_devfunc_t sc_ct; 130 cardbustag_t sc_tag; 131 int sc_csr; 132 int sc_cben; 133 int sc_bar_reg; 134 pcireg_t sc_bar_val; 135 bus_size_t sc_mapsize; 136 int sc_intrline; 137 }; 138 139 CFATTACH_DECL(rtk_cardbus, sizeof(struct rtk_cardbus_softc), 140 rtk_cardbus_match, rtk_cardbus_attach, rtk_cardbus_detach, rtk_activate); 141 142 const struct rtk_type *rtk_cardbus_lookup 143 __P((const struct cardbus_attach_args *)); 144 145 void rtk_cardbus_setup __P((struct rtk_cardbus_softc *)); 146 147 int rtk_cardbus_enable __P((struct rtk_softc *)); 148 void rtk_cardbus_disable __P((struct rtk_softc *)); 149 void rtk_cardbus_power __P((struct rtk_softc *, int)); 150 const struct rtk_type * 151 rtk_cardbus_lookup(ca) 152 const struct cardbus_attach_args *ca; 153 { 154 const struct rtk_type *t; 155 156 for (t = rtk_cardbus_devs; t->rtk_name != NULL; t++){ 157 if (CARDBUS_VENDOR(ca->ca_id) == t->rtk_vid && 158 CARDBUS_PRODUCT(ca->ca_id) == t->rtk_did) { 159 return (t); 160 } 161 } 162 return (NULL); 163 } 164 165 int 166 rtk_cardbus_match(parent, match, aux) 167 struct device *parent; 168 struct cfdata *match; 169 void *aux; 170 { 171 struct cardbus_attach_args *ca = aux; 172 173 if (rtk_cardbus_lookup(ca) != NULL) 174 return (1); 175 176 return (0); 177 } 178 179 180 void 181 rtk_cardbus_attach(parent, self, aux) 182 struct device *parent, *self; 183 void *aux; 184 { 185 struct rtk_cardbus_softc *csc = (struct rtk_cardbus_softc *)self; 186 struct rtk_softc *sc = &csc->sc_rtk; 187 struct cardbus_attach_args *ca = aux; 188 cardbus_devfunc_t ct = ca->ca_ct; 189 const struct rtk_type *t; 190 bus_addr_t adr; 191 192 sc->sc_dmat = ca->ca_dmat; 193 csc->sc_ct = ct; 194 csc->sc_tag = ca->ca_tag; 195 csc->sc_intrline = ca->ca_intrline; 196 197 t = rtk_cardbus_lookup(ca); 198 if (t == NULL) { 199 printf("\n"); 200 panic("rtk_cardbus_attach: impossible"); 201 } 202 printf(": %s\n", t->rtk_name); 203 204 /* 205 * Power management hooks. 206 */ 207 sc->sc_enable = rtk_cardbus_enable; 208 sc->sc_disable = rtk_cardbus_disable; 209 sc->sc_power = rtk_cardbus_power; 210 211 /* 212 * Map control/status registers. 213 */ 214 csc->sc_csr = CARDBUS_COMMAND_MASTER_ENABLE; 215 #ifdef RTK_USEIOSPACE 216 if (Cardbus_mapreg_map(ct, RTK_PCI_LOIO, CARDBUS_MAPREG_TYPE_IO, 0, 217 &sc->rtk_btag, &sc->rtk_bhandle, &adr, &csc->sc_mapsize) == 0) { 218 #if rbus 219 #else 220 (*ct->ct_cf->cardbus_io_open)(cc, 0, adr, adr+csc->sc_mapsize); 221 #endif 222 csc->sc_cben = CARDBUS_IO_ENABLE; 223 csc->sc_csr |= CARDBUS_COMMAND_IO_ENABLE; 224 csc->sc_bar_reg = RTK_PCI_LOIO; 225 csc->sc_bar_val = adr | CARDBUS_MAPREG_TYPE_IO; 226 } 227 #else 228 if (Cardbus_mapreg_map(ct, RTK_PCI_LOMEM, CARDBUS_MAPREG_TYPE_MEM, 0, 229 &sc->rtk_btag, &sc->rtk_bhandle, &adr, &csc->sc_mapsize) == 0) { 230 #if rbus 231 #else 232 (*ct->ct_cf->cardbus_mem_open)(cc, 0, adr, adr+csc->sc_mapsize); 233 #endif 234 csc->sc_cben = CARDBUS_MEM_ENABLE; 235 csc->sc_csr |= CARDBUS_COMMAND_MEM_ENABLE; 236 csc->sc_bar_reg = RTK_PCI_LOMEM; 237 csc->sc_bar_val = adr | CARDBUS_MAPREG_TYPE_MEM; 238 } 239 #endif 240 else { 241 printf("%s: unable to map deviceregisters\n", 242 sc->sc_dev.dv_xname); 243 return; 244 } 245 /* 246 * Handle power management nonsense and initialize the 247 * configuration registers. 248 */ 249 rtk_cardbus_setup(csc); 250 sc->rtk_type = t->rtk_type; 251 252 rtk_attach(sc); 253 254 /* 255 * Power down the socket. 256 */ 257 Cardbus_function_disable(csc->sc_ct); 258 } 259 260 int 261 rtk_cardbus_detach(self, flags) 262 struct device *self; 263 int flags; 264 { 265 struct rtk_cardbus_softc *csc = (void *) self; 266 struct rtk_softc *sc = &csc->sc_rtk; 267 struct cardbus_devfunc *ct = csc->sc_ct; 268 int rv; 269 270 #ifdef DIAGNOSTIC 271 if (ct == NULL) 272 panic("%s: data structure lacks", sc->sc_dev.dv_xname); 273 #endif 274 rv = rtk_detach(sc); 275 if (rv) 276 return (rv); 277 /* 278 * Unhook the interrut handler. 279 */ 280 if (csc->sc_ih != NULL) 281 cardbus_intr_disestablish(ct->ct_cc, ct->ct_cf, csc->sc_ih); 282 283 /* 284 * Release bus space and close window. 285 */ 286 if (csc->sc_bar_reg != 0) 287 Cardbus_mapreg_unmap(ct, csc->sc_bar_reg, 288 sc->rtk_btag, sc->rtk_bhandle, csc->sc_mapsize); 289 290 return (0); 291 } 292 293 void 294 rtk_cardbus_setup(csc) 295 struct rtk_cardbus_softc *csc; 296 { 297 struct rtk_softc *sc = &csc->sc_rtk; 298 cardbus_devfunc_t ct = csc->sc_ct; 299 cardbus_chipset_tag_t cc = ct->ct_cc; 300 cardbus_function_tag_t cf = ct->ct_cf; 301 pcireg_t reg,command; 302 int pmreg; 303 304 /* 305 * Handle power management nonsense. 306 */ 307 if (cardbus_get_capability(cc, cf, csc->sc_tag, 308 PCI_CAP_PWRMGMT, &pmreg, 0)) { 309 command = cardbus_conf_read(cc, cf, csc->sc_tag, pmreg + 4); 310 if (command & RTK_PSTATE_MASK) { 311 pcireg_t iobase, membase, irq; 312 313 /* Save important PCI config data. */ 314 iobase = cardbus_conf_read(cc, cf, csc->sc_tag, 315 RTK_PCI_LOIO); 316 membase = cardbus_conf_read(cc, cf,csc->sc_tag, 317 RTK_PCI_LOMEM); 318 irq = cardbus_conf_read(cc, cf,csc->sc_tag, 319 PCI_PRODUCT_DELTA_8139); 320 321 /* Reset the power state. */ 322 printf("%s: chip is is in D%d power mode " 323 "-- setting to D0\n", sc->sc_dev.dv_xname, 324 command & RTK_PSTATE_MASK); 325 command &= 0xFFFFFFFC; 326 cardbus_conf_write(cc, cf, csc->sc_tag, 327 pmreg + 4, command); 328 329 /* Restore PCI config data. */ 330 cardbus_conf_write(cc, cf, csc->sc_tag, 331 RTK_PCI_LOIO, iobase); 332 cardbus_conf_write(cc, cf, csc->sc_tag, 333 RTK_PCI_LOMEM, membase); 334 cardbus_conf_write(cc, cf, csc->sc_tag, 335 PCI_PRODUCT_DELTA_8139, irq); 336 } 337 } 338 339 /* Make sure the right access type is on the CardBus bridge. */ 340 (*ct->ct_cf->cardbus_ctrl)(cc, csc->sc_cben); 341 (*ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_BM_ENABLE); 342 343 /* Program the BAR */ 344 cardbus_conf_write(cc, cf, csc->sc_tag, 345 csc->sc_bar_reg, csc->sc_bar_val); 346 347 /* Enable the appropriate bits in the CARDBUS CSR. */ 348 reg = cardbus_conf_read(cc, cf, csc->sc_tag, 349 CARDBUS_COMMAND_STATUS_REG); 350 reg &= ~(CARDBUS_COMMAND_IO_ENABLE|CARDBUS_COMMAND_MEM_ENABLE); 351 reg |= csc->sc_csr; 352 cardbus_conf_write(cc, cf, csc->sc_tag, 353 CARDBUS_COMMAND_STATUS_REG, reg); 354 355 /* 356 * Make sure the latency timer is set to some reasonable 357 * value. 358 */ 359 reg = cardbus_conf_read(cc, cf, csc->sc_tag, CARDBUS_BHLC_REG); 360 if (CARDBUS_LATTIMER(reg) < 0x20) { 361 reg &= ~(CARDBUS_LATTIMER_MASK << CARDBUS_LATTIMER_SHIFT); 362 reg |= (0x20 << CARDBUS_LATTIMER_SHIFT); 363 cardbus_conf_write(cc, cf, csc->sc_tag, CARDBUS_BHLC_REG, reg); 364 } 365 } 366 367 int 368 rtk_cardbus_enable(sc) 369 struct rtk_softc *sc; 370 { 371 struct rtk_cardbus_softc *csc = (void *) sc; 372 cardbus_devfunc_t ct = csc->sc_ct; 373 cardbus_chipset_tag_t cc = ct->ct_cc; 374 cardbus_function_tag_t cf = ct->ct_cf; 375 376 /* 377 * Power on the socket. 378 */ 379 Cardbus_function_enable(ct); 380 381 /* 382 * Set up the PCI configuration registers. 383 */ 384 rtk_cardbus_setup(csc); 385 386 /* 387 * Map and establish the interrupt. 388 */ 389 csc->sc_ih = cardbus_intr_establish(cc, cf, csc->sc_intrline, 390 IPL_NET, rtk_intr, sc); 391 if (csc->sc_ih == NULL) { 392 printf("%s: unable to establish interrupt at %d\n", 393 sc->sc_dev.dv_xname, csc->sc_intrline); 394 Cardbus_function_disable(csc->sc_ct); 395 return (1); 396 } 397 printf("%s: interrupting at %d\n", sc->sc_dev.dv_xname, 398 csc->sc_intrline); 399 return (0); 400 } 401 402 void 403 rtk_cardbus_disable(sc) 404 struct rtk_softc *sc; 405 { 406 struct rtk_cardbus_softc *csc = (void *) sc; 407 cardbus_devfunc_t ct = csc->sc_ct; 408 cardbus_chipset_tag_t cc = ct->ct_cc; 409 cardbus_function_tag_t cf = ct->ct_cf; 410 411 /* Unhook the interrupt handler. */ 412 cardbus_intr_disestablish(cc, cf, csc->sc_ih); 413 414 /* Power down the socket. */ 415 Cardbus_function_disable(ct); 416 } 417 418 void 419 rtk_cardbus_power(sc, why) 420 struct rtk_softc *sc; 421 int why; 422 { 423 struct rtk_cardbus_softc *csc = (void *) sc; 424 425 if (why == PWR_RESUME) { 426 /* 427 * Give the PCI configuration registers a kick 428 * in the head. 429 */ 430 #ifdef DIAGNOSTIC 431 if (RTK_IS_ENABLED(sc) == 0) 432 panic("rtk_cardbus_power"); 433 #endif 434 rtk_cardbus_setup(csc); 435 } 436 } 437
Indexes created Fri Oct 03 02:09:57 GMT 2025