if_rtk_cardbus.c revision 1.13
1 /* $NetBSD: if_rtk_cardbus.c,v 1.13 2002/12/23 02:19:22 tsutsui 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 1.13 2002/12/23 02:19:22 tsutsui 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_PLANEX, CARDBUS_PRODUCT_PLANEX_FNW_3603_TX, 118 "Planex FNW-3603 10/100BaseTX", RTK_8139 }, 119 { 0, 0, NULL, 0 } 120 }; 121 122 static int rtk_cardbus_match __P((struct device *, struct cfdata *, void *)); 123 static void rtk_cardbus_attach __P((struct device *, struct device *, void *)); 124 static int rtk_cardbus_detach __P((struct device *, int)); 125 126 struct rtk_cardbus_softc { 127 struct rtk_softc sc_rtk; /* real rtk softc */ 128 129 /* CardBus-specific goo. */ 130 void *sc_ih; 131 cardbus_devfunc_t sc_ct; 132 cardbustag_t sc_tag; 133 int sc_csr; 134 int sc_cben; 135 int sc_bar_reg; 136 pcireg_t sc_bar_val; 137 bus_size_t sc_mapsize; 138 int sc_intrline; 139 }; 140 141 CFATTACH_DECL(rtk_cardbus, sizeof(struct rtk_cardbus_softc), 142 rtk_cardbus_match, rtk_cardbus_attach, rtk_cardbus_detach, rtk_activate); 143 144 const struct rtk_type *rtk_cardbus_lookup 145 __P((const struct cardbus_attach_args *)); 146 147 void rtk_cardbus_setup __P((struct rtk_cardbus_softc *)); 148 149 int rtk_cardbus_enable __P((struct rtk_softc *)); 150 void rtk_cardbus_disable __P((struct rtk_softc *)); 151 void rtk_cardbus_power __P((struct rtk_softc *, int)); 152 const struct rtk_type * 153 rtk_cardbus_lookup(ca) 154 const struct cardbus_attach_args *ca; 155 { 156 const struct rtk_type *t; 157 158 for (t = rtk_cardbus_devs; t->rtk_name != NULL; t++){ 159 if (CARDBUS_VENDOR(ca->ca_id) == t->rtk_vid && 160 CARDBUS_PRODUCT(ca->ca_id) == t->rtk_did) { 161 return (t); 162 } 163 } 164 return (NULL); 165 } 166 167 int 168 rtk_cardbus_match(parent, match, aux) 169 struct device *parent; 170 struct cfdata *match; 171 void *aux; 172 { 173 struct cardbus_attach_args *ca = aux; 174 175 if (rtk_cardbus_lookup(ca) != NULL) 176 return (1); 177 178 return (0); 179 } 180 181 182 void 183 rtk_cardbus_attach(parent, self, aux) 184 struct device *parent, *self; 185 void *aux; 186 { 187 struct rtk_cardbus_softc *csc = (struct rtk_cardbus_softc *)self; 188 struct rtk_softc *sc = &csc->sc_rtk; 189 struct cardbus_attach_args *ca = aux; 190 cardbus_devfunc_t ct = ca->ca_ct; 191 const struct rtk_type *t; 192 bus_addr_t adr; 193 194 sc->sc_dmat = ca->ca_dmat; 195 csc->sc_ct = ct; 196 csc->sc_tag = ca->ca_tag; 197 csc->sc_intrline = ca->ca_intrline; 198 199 t = rtk_cardbus_lookup(ca); 200 if (t == NULL) { 201 printf("\n"); 202 panic("rtk_cardbus_attach: impossible"); 203 } 204 printf(": %s\n", t->rtk_name); 205 206 /* 207 * Power management hooks. 208 */ 209 sc->sc_enable = rtk_cardbus_enable; 210 sc->sc_disable = rtk_cardbus_disable; 211 sc->sc_power = rtk_cardbus_power; 212 213 /* 214 * Map control/status registers. 215 */ 216 csc->sc_csr = CARDBUS_COMMAND_MASTER_ENABLE; 217 #ifdef RTK_USEIOSPACE 218 if (Cardbus_mapreg_map(ct, RTK_PCI_LOIO, CARDBUS_MAPREG_TYPE_IO, 0, 219 &sc->rtk_btag, &sc->rtk_bhandle, &adr, &csc->sc_mapsize) == 0) { 220 #if rbus 221 #else 222 (*ct->ct_cf->cardbus_io_open)(cc, 0, adr, adr+csc->sc_mapsize); 223 #endif 224 csc->sc_cben = CARDBUS_IO_ENABLE; 225 csc->sc_csr |= CARDBUS_COMMAND_IO_ENABLE; 226 csc->sc_bar_reg = RTK_PCI_LOIO; 227 csc->sc_bar_val = adr | CARDBUS_MAPREG_TYPE_IO; 228 } 229 #else 230 if (Cardbus_mapreg_map(ct, RTK_PCI_LOMEM, CARDBUS_MAPREG_TYPE_MEM, 0, 231 &sc->rtk_btag, &sc->rtk_bhandle, &adr, &csc->sc_mapsize) == 0) { 232 #if rbus 233 #else 234 (*ct->ct_cf->cardbus_mem_open)(cc, 0, adr, adr+csc->sc_mapsize); 235 #endif 236 csc->sc_cben = CARDBUS_MEM_ENABLE; 237 csc->sc_csr |= CARDBUS_COMMAND_MEM_ENABLE; 238 csc->sc_bar_reg = RTK_PCI_LOMEM; 239 csc->sc_bar_val = adr | CARDBUS_MAPREG_TYPE_MEM; 240 } 241 #endif 242 else { 243 printf("%s: unable to map deviceregisters\n", 244 sc->sc_dev.dv_xname); 245 return; 246 } 247 /* 248 * Handle power management nonsense and initialize the 249 * configuration registers. 250 */ 251 rtk_cardbus_setup(csc); 252 sc->rtk_type = t->rtk_type; 253 254 rtk_attach(sc); 255 256 /* 257 * Power down the socket. 258 */ 259 Cardbus_function_disable(csc->sc_ct); 260 } 261 262 int 263 rtk_cardbus_detach(self, flags) 264 struct device *self; 265 int flags; 266 { 267 struct rtk_cardbus_softc *csc = (void *) self; 268 struct rtk_softc *sc = &csc->sc_rtk; 269 struct cardbus_devfunc *ct = csc->sc_ct; 270 int rv; 271 272 #ifdef DIAGNOSTIC 273 if (ct == NULL) 274 panic("%s: data structure lacks", sc->sc_dev.dv_xname); 275 #endif 276 rv = rtk_detach(sc); 277 if (rv) 278 return (rv); 279 /* 280 * Unhook the interrut handler. 281 */ 282 if (csc->sc_ih != NULL) 283 cardbus_intr_disestablish(ct->ct_cc, ct->ct_cf, csc->sc_ih); 284 285 /* 286 * Release bus space and close window. 287 */ 288 if (csc->sc_bar_reg != 0) 289 Cardbus_mapreg_unmap(ct, csc->sc_bar_reg, 290 sc->rtk_btag, sc->rtk_bhandle, csc->sc_mapsize); 291 292 return (0); 293 } 294 295 void 296 rtk_cardbus_setup(csc) 297 struct rtk_cardbus_softc *csc; 298 { 299 struct rtk_softc *sc = &csc->sc_rtk; 300 cardbus_devfunc_t ct = csc->sc_ct; 301 cardbus_chipset_tag_t cc = ct->ct_cc; 302 cardbus_function_tag_t cf = ct->ct_cf; 303 pcireg_t reg,command; 304 int pmreg; 305 306 /* 307 * Handle power management nonsense. 308 */ 309 if (cardbus_get_capability(cc, cf, csc->sc_tag, 310 PCI_CAP_PWRMGMT, &pmreg, 0)) { 311 command = cardbus_conf_read(cc, cf, csc->sc_tag, pmreg + 4); 312 if (command & RTK_PSTATE_MASK) { 313 pcireg_t iobase, membase, irq; 314 315 /* Save important PCI config data. */ 316 iobase = cardbus_conf_read(cc, cf, csc->sc_tag, 317 RTK_PCI_LOIO); 318 membase = cardbus_conf_read(cc, cf,csc->sc_tag, 319 RTK_PCI_LOMEM); 320 irq = cardbus_conf_read(cc, cf,csc->sc_tag, 321 CARDBUS_INTERRUPT_REG); 322 323 /* Reset the power state. */ 324 printf("%s: chip is in D%d power mode " 325 "-- setting to D0\n", sc->sc_dev.dv_xname, 326 command & RTK_PSTATE_MASK); 327 command &= 0xFFFFFFFC; 328 cardbus_conf_write(cc, cf, csc->sc_tag, 329 pmreg + 4, command); 330 331 /* Restore PCI config data. */ 332 cardbus_conf_write(cc, cf, csc->sc_tag, 333 RTK_PCI_LOIO, iobase); 334 cardbus_conf_write(cc, cf, csc->sc_tag, 335 RTK_PCI_LOMEM, membase); 336 cardbus_conf_write(cc, cf, csc->sc_tag, 337 CARDBUS_INTERRUPT_REG, irq); 338 } 339 } 340 341 /* Make sure the right access type is on the CardBus bridge. */ 342 (*ct->ct_cf->cardbus_ctrl)(cc, csc->sc_cben); 343 (*ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_BM_ENABLE); 344 345 /* Program the BAR */ 346 cardbus_conf_write(cc, cf, csc->sc_tag, 347 csc->sc_bar_reg, csc->sc_bar_val); 348 349 /* Enable the appropriate bits in the CARDBUS CSR. */ 350 reg = cardbus_conf_read(cc, cf, csc->sc_tag, 351 CARDBUS_COMMAND_STATUS_REG); 352 reg &= ~(CARDBUS_COMMAND_IO_ENABLE|CARDBUS_COMMAND_MEM_ENABLE); 353 reg |= csc->sc_csr; 354 cardbus_conf_write(cc, cf, csc->sc_tag, 355 CARDBUS_COMMAND_STATUS_REG, reg); 356 357 /* 358 * Make sure the latency timer is set to some reasonable 359 * value. 360 */ 361 reg = cardbus_conf_read(cc, cf, csc->sc_tag, CARDBUS_BHLC_REG); 362 if (CARDBUS_LATTIMER(reg) < 0x20) { 363 reg &= ~(CARDBUS_LATTIMER_MASK << CARDBUS_LATTIMER_SHIFT); 364 reg |= (0x20 << CARDBUS_LATTIMER_SHIFT); 365 cardbus_conf_write(cc, cf, csc->sc_tag, CARDBUS_BHLC_REG, reg); 366 } 367 } 368 369 int 370 rtk_cardbus_enable(sc) 371 struct rtk_softc *sc; 372 { 373 struct rtk_cardbus_softc *csc = (void *) sc; 374 cardbus_devfunc_t ct = csc->sc_ct; 375 cardbus_chipset_tag_t cc = ct->ct_cc; 376 cardbus_function_tag_t cf = ct->ct_cf; 377 378 /* 379 * Power on the socket. 380 */ 381 Cardbus_function_enable(ct); 382 383 /* 384 * Set up the PCI configuration registers. 385 */ 386 rtk_cardbus_setup(csc); 387 388 /* 389 * Map and establish the interrupt. 390 */ 391 csc->sc_ih = cardbus_intr_establish(cc, cf, csc->sc_intrline, 392 IPL_NET, rtk_intr, sc); 393 if (csc->sc_ih == NULL) { 394 printf("%s: unable to establish interrupt at %d\n", 395 sc->sc_dev.dv_xname, csc->sc_intrline); 396 Cardbus_function_disable(csc->sc_ct); 397 return (1); 398 } 399 printf("%s: interrupting at %d\n", sc->sc_dev.dv_xname, 400 csc->sc_intrline); 401 return (0); 402 } 403 404 void 405 rtk_cardbus_disable(sc) 406 struct rtk_softc *sc; 407 { 408 struct rtk_cardbus_softc *csc = (void *) sc; 409 cardbus_devfunc_t ct = csc->sc_ct; 410 cardbus_chipset_tag_t cc = ct->ct_cc; 411 cardbus_function_tag_t cf = ct->ct_cf; 412 413 /* Unhook the interrupt handler. */ 414 cardbus_intr_disestablish(cc, cf, csc->sc_ih); 415 416 /* Power down the socket. */ 417 Cardbus_function_disable(ct); 418 } 419 420 void 421 rtk_cardbus_power(sc, why) 422 struct rtk_softc *sc; 423 int why; 424 { 425 struct rtk_cardbus_softc *csc = (void *) sc; 426 427 if (why == PWR_RESUME) { 428 /* 429 * Give the PCI configuration registers a kick 430 * in the head. 431 */ 432 #ifdef DIAGNOSTIC 433 if (RTK_IS_ENABLED(sc) == 0) 434 panic("rtk_cardbus_power"); 435 #endif 436 rtk_cardbus_setup(csc); 437 } 438 } 439
Indexes created Fri Oct 03 02:09:57 GMT 2025