if_rtk_cardbus.c revision 1.15
1 /* $NetBSD: if_rtk_cardbus.c,v 1.15 2003/06/26 21:14:44 ichiro 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 1.15 2003/06/26 21:14:44 ichiro 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 { CARDBUS_VENDOR_COREGA, CARDBUS_PRODUCT_COREGA_2CB_TXD, 118 "Corega FEther II CB-TXD 10/100BaseTX", RTK_8139 }, 119 { CARDBUS_VENDOR_PLANEX, CARDBUS_PRODUCT_PLANEX_FNW_3603_TX, 120 "Planex FNW-3603 10/100BaseTX", RTK_8139 }, 121 { CARDBUS_VENDOR_PLANEX, CARDBUS_PRODUCT_PLANEX_FNW_3800_TX, 122 "Planex 10/100BaseTX FNW-3800-TX", RTK_8139 }, 123 { CARDBUS_VENDOR_ABOCOM, CARDBUS_PRODUCT_ABOCOM_FE2000VX, 124 "AboCom FE2000VX 10/100BaseTX", RTK_8139 }, 125 126 { 0, 0, NULL, 0 } 127 }; 128 129 static int rtk_cardbus_match __P((struct device *, struct cfdata *, void *)); 130 static void rtk_cardbus_attach __P((struct device *, struct device *, void *)); 131 static int rtk_cardbus_detach __P((struct device *, int)); 132 133 struct rtk_cardbus_softc { 134 struct rtk_softc sc_rtk; /* real rtk softc */ 135 136 /* CardBus-specific goo. */ 137 void *sc_ih; 138 cardbus_devfunc_t sc_ct; 139 cardbustag_t sc_tag; 140 int sc_csr; 141 int sc_cben; 142 int sc_bar_reg; 143 pcireg_t sc_bar_val; 144 bus_size_t sc_mapsize; 145 int sc_intrline; 146 }; 147 148 CFATTACH_DECL(rtk_cardbus, sizeof(struct rtk_cardbus_softc), 149 rtk_cardbus_match, rtk_cardbus_attach, rtk_cardbus_detach, rtk_activate); 150 151 const struct rtk_type *rtk_cardbus_lookup 152 __P((const struct cardbus_attach_args *)); 153 154 void rtk_cardbus_setup __P((struct rtk_cardbus_softc *)); 155 156 int rtk_cardbus_enable __P((struct rtk_softc *)); 157 void rtk_cardbus_disable __P((struct rtk_softc *)); 158 void rtk_cardbus_power __P((struct rtk_softc *, int)); 159 const struct rtk_type * 160 rtk_cardbus_lookup(ca) 161 const struct cardbus_attach_args *ca; 162 { 163 const struct rtk_type *t; 164 165 for (t = rtk_cardbus_devs; t->rtk_name != NULL; t++){ 166 if (CARDBUS_VENDOR(ca->ca_id) == t->rtk_vid && 167 CARDBUS_PRODUCT(ca->ca_id) == t->rtk_did) { 168 return (t); 169 } 170 } 171 return (NULL); 172 } 173 174 int 175 rtk_cardbus_match(parent, match, aux) 176 struct device *parent; 177 struct cfdata *match; 178 void *aux; 179 { 180 struct cardbus_attach_args *ca = aux; 181 182 if (rtk_cardbus_lookup(ca) != NULL) 183 return (1); 184 185 return (0); 186 } 187 188 189 void 190 rtk_cardbus_attach(parent, self, aux) 191 struct device *parent, *self; 192 void *aux; 193 { 194 struct rtk_cardbus_softc *csc = (struct rtk_cardbus_softc *)self; 195 struct rtk_softc *sc = &csc->sc_rtk; 196 struct cardbus_attach_args *ca = aux; 197 cardbus_devfunc_t ct = ca->ca_ct; 198 const struct rtk_type *t; 199 bus_addr_t adr; 200 201 sc->sc_dmat = ca->ca_dmat; 202 csc->sc_ct = ct; 203 csc->sc_tag = ca->ca_tag; 204 csc->sc_intrline = ca->ca_intrline; 205 206 t = rtk_cardbus_lookup(ca); 207 if (t == NULL) { 208 printf("\n"); 209 panic("rtk_cardbus_attach: impossible"); 210 } 211 printf(": %s\n", t->rtk_name); 212 213 /* 214 * Power management hooks. 215 */ 216 sc->sc_enable = rtk_cardbus_enable; 217 sc->sc_disable = rtk_cardbus_disable; 218 sc->sc_power = rtk_cardbus_power; 219 220 /* 221 * Map control/status registers. 222 */ 223 csc->sc_csr = CARDBUS_COMMAND_MASTER_ENABLE; 224 #ifdef RTK_USEIOSPACE 225 if (Cardbus_mapreg_map(ct, RTK_PCI_LOIO, CARDBUS_MAPREG_TYPE_IO, 0, 226 &sc->rtk_btag, &sc->rtk_bhandle, &adr, &csc->sc_mapsize) == 0) { 227 #if rbus 228 #else 229 (*ct->ct_cf->cardbus_io_open)(cc, 0, adr, adr+csc->sc_mapsize); 230 #endif 231 csc->sc_cben = CARDBUS_IO_ENABLE; 232 csc->sc_csr |= CARDBUS_COMMAND_IO_ENABLE; 233 csc->sc_bar_reg = RTK_PCI_LOIO; 234 csc->sc_bar_val = adr | CARDBUS_MAPREG_TYPE_IO; 235 } 236 #else 237 if (Cardbus_mapreg_map(ct, RTK_PCI_LOMEM, CARDBUS_MAPREG_TYPE_MEM, 0, 238 &sc->rtk_btag, &sc->rtk_bhandle, &adr, &csc->sc_mapsize) == 0) { 239 #if rbus 240 #else 241 (*ct->ct_cf->cardbus_mem_open)(cc, 0, adr, adr+csc->sc_mapsize); 242 #endif 243 csc->sc_cben = CARDBUS_MEM_ENABLE; 244 csc->sc_csr |= CARDBUS_COMMAND_MEM_ENABLE; 245 csc->sc_bar_reg = RTK_PCI_LOMEM; 246 csc->sc_bar_val = adr | CARDBUS_MAPREG_TYPE_MEM; 247 } 248 #endif 249 else { 250 printf("%s: unable to map deviceregisters\n", 251 sc->sc_dev.dv_xname); 252 return; 253 } 254 /* 255 * Handle power management nonsense and initialize the 256 * configuration registers. 257 */ 258 rtk_cardbus_setup(csc); 259 sc->rtk_type = t->rtk_type; 260 261 rtk_attach(sc); 262 263 /* 264 * Power down the socket. 265 */ 266 Cardbus_function_disable(csc->sc_ct); 267 } 268 269 int 270 rtk_cardbus_detach(self, flags) 271 struct device *self; 272 int flags; 273 { 274 struct rtk_cardbus_softc *csc = (void *) self; 275 struct rtk_softc *sc = &csc->sc_rtk; 276 struct cardbus_devfunc *ct = csc->sc_ct; 277 int rv; 278 279 #ifdef DIAGNOSTIC 280 if (ct == NULL) 281 panic("%s: data structure lacks", sc->sc_dev.dv_xname); 282 #endif 283 rv = rtk_detach(sc); 284 if (rv) 285 return (rv); 286 /* 287 * Unhook the interrut handler. 288 */ 289 if (csc->sc_ih != NULL) 290 cardbus_intr_disestablish(ct->ct_cc, ct->ct_cf, csc->sc_ih); 291 292 /* 293 * Release bus space and close window. 294 */ 295 if (csc->sc_bar_reg != 0) 296 Cardbus_mapreg_unmap(ct, csc->sc_bar_reg, 297 sc->rtk_btag, sc->rtk_bhandle, csc->sc_mapsize); 298 299 return (0); 300 } 301 302 void 303 rtk_cardbus_setup(csc) 304 struct rtk_cardbus_softc *csc; 305 { 306 struct rtk_softc *sc = &csc->sc_rtk; 307 cardbus_devfunc_t ct = csc->sc_ct; 308 cardbus_chipset_tag_t cc = ct->ct_cc; 309 cardbus_function_tag_t cf = ct->ct_cf; 310 pcireg_t reg,command; 311 int pmreg; 312 313 /* 314 * Handle power management nonsense. 315 */ 316 if (cardbus_get_capability(cc, cf, csc->sc_tag, 317 PCI_CAP_PWRMGMT, &pmreg, 0)) { 318 command = cardbus_conf_read(cc, cf, csc->sc_tag, pmreg + 4); 319 if (command & RTK_PSTATE_MASK) { 320 pcireg_t iobase, membase, irq; 321 322 /* Save important PCI config data. */ 323 iobase = cardbus_conf_read(cc, cf, csc->sc_tag, 324 RTK_PCI_LOIO); 325 membase = cardbus_conf_read(cc, cf,csc->sc_tag, 326 RTK_PCI_LOMEM); 327 irq = cardbus_conf_read(cc, cf,csc->sc_tag, 328 CARDBUS_INTERRUPT_REG); 329 330 /* Reset the power state. */ 331 printf("%s: chip is in D%d power mode " 332 "-- setting to D0\n", sc->sc_dev.dv_xname, 333 command & RTK_PSTATE_MASK); 334 command &= 0xFFFFFFFC; 335 cardbus_conf_write(cc, cf, csc->sc_tag, 336 pmreg + 4, command); 337 338 /* Restore PCI config data. */ 339 cardbus_conf_write(cc, cf, csc->sc_tag, 340 RTK_PCI_LOIO, iobase); 341 cardbus_conf_write(cc, cf, csc->sc_tag, 342 RTK_PCI_LOMEM, membase); 343 cardbus_conf_write(cc, cf, csc->sc_tag, 344 CARDBUS_INTERRUPT_REG, irq); 345 } 346 } 347 348 /* Make sure the right access type is on the CardBus bridge. */ 349 (*ct->ct_cf->cardbus_ctrl)(cc, csc->sc_cben); 350 (*ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_BM_ENABLE); 351 352 /* Program the BAR */ 353 cardbus_conf_write(cc, cf, csc->sc_tag, 354 csc->sc_bar_reg, csc->sc_bar_val); 355 356 /* Enable the appropriate bits in the CARDBUS CSR. */ 357 reg = cardbus_conf_read(cc, cf, csc->sc_tag, 358 CARDBUS_COMMAND_STATUS_REG); 359 reg &= ~(CARDBUS_COMMAND_IO_ENABLE|CARDBUS_COMMAND_MEM_ENABLE); 360 reg |= csc->sc_csr; 361 cardbus_conf_write(cc, cf, csc->sc_tag, 362 CARDBUS_COMMAND_STATUS_REG, reg); 363 364 /* 365 * Make sure the latency timer is set to some reasonable 366 * value. 367 */ 368 reg = cardbus_conf_read(cc, cf, csc->sc_tag, CARDBUS_BHLC_REG); 369 if (CARDBUS_LATTIMER(reg) < 0x20) { 370 reg &= ~(CARDBUS_LATTIMER_MASK << CARDBUS_LATTIMER_SHIFT); 371 reg |= (0x20 << CARDBUS_LATTIMER_SHIFT); 372 cardbus_conf_write(cc, cf, csc->sc_tag, CARDBUS_BHLC_REG, reg); 373 } 374 } 375 376 int 377 rtk_cardbus_enable(sc) 378 struct rtk_softc *sc; 379 { 380 struct rtk_cardbus_softc *csc = (void *) sc; 381 cardbus_devfunc_t ct = csc->sc_ct; 382 cardbus_chipset_tag_t cc = ct->ct_cc; 383 cardbus_function_tag_t cf = ct->ct_cf; 384 385 /* 386 * Power on the socket. 387 */ 388 Cardbus_function_enable(ct); 389 390 /* 391 * Set up the PCI configuration registers. 392 */ 393 rtk_cardbus_setup(csc); 394 395 /* 396 * Map and establish the interrupt. 397 */ 398 csc->sc_ih = cardbus_intr_establish(cc, cf, csc->sc_intrline, 399 IPL_NET, rtk_intr, sc); 400 if (csc->sc_ih == NULL) { 401 printf("%s: unable to establish interrupt at %d\n", 402 sc->sc_dev.dv_xname, csc->sc_intrline); 403 Cardbus_function_disable(csc->sc_ct); 404 return (1); 405 } 406 printf("%s: interrupting at %d\n", sc->sc_dev.dv_xname, 407 csc->sc_intrline); 408 return (0); 409 } 410 411 void 412 rtk_cardbus_disable(sc) 413 struct rtk_softc *sc; 414 { 415 struct rtk_cardbus_softc *csc = (void *) sc; 416 cardbus_devfunc_t ct = csc->sc_ct; 417 cardbus_chipset_tag_t cc = ct->ct_cc; 418 cardbus_function_tag_t cf = ct->ct_cf; 419 420 /* Unhook the interrupt handler. */ 421 cardbus_intr_disestablish(cc, cf, csc->sc_ih); 422 423 /* Power down the socket. */ 424 Cardbus_function_disable(ct); 425 } 426 427 void 428 rtk_cardbus_power(sc, why) 429 struct rtk_softc *sc; 430 int why; 431 { 432 struct rtk_cardbus_softc *csc = (void *) sc; 433 434 if (why == PWR_RESUME) { 435 /* 436 * Give the PCI configuration registers a kick 437 * in the head. 438 */ 439 #ifdef DIAGNOSTIC 440 if (RTK_IS_ENABLED(sc) == 0) 441 panic("rtk_cardbus_power"); 442 #endif 443 rtk_cardbus_setup(csc); 444 } 445 } 446
Indexes created Fri Oct 03 02:09:57 GMT 2025