if_rtk_cardbus.c revision 1.16
1 /* $NetBSD: if_rtk_cardbus.c,v 1.16 2003/10/25 23:48:45 fvdl 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 1.16 2003/10/25 23:48:45 fvdl 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 RTK_8139, "Accton MPX 5030/5038 10/100BaseTX" }, 108 { CARDBUS_VENDOR_DLINK, CARDBUS_PRODUCT_DLINK_DFE_690TXD, 109 RTK_8139, "D-Link DFE-690TXD 10/100BaseTX" }, 110 { CARDBUS_VENDOR_REALTEK, CARDBUS_PRODUCT_REALTEK_RT8138, 111 RTK_8139, "RealTek 8138 10/100BaseTX" }, 112 { CARDBUS_VENDOR_REALTEK, CARDBUS_PRODUCT_REALTEK_RT8139, 113 RTK_8139, "RealTek 8139 10/100BaseTX" }, 114 { CARDBUS_VENDOR_COREGA, CARDBUS_PRODUCT_COREGA_CB_TXD, 115 RTK_8139, "Corega FEther CB-TXD 10/100BaseTX" }, 116 { CARDBUS_VENDOR_COREGA, CARDBUS_PRODUCT_COREGA_2CB_TXD, 117 RTK_8139, "Corega FEther II CB-TXD 10/100BaseTX" }, 118 { CARDBUS_VENDOR_PLANEX, CARDBUS_PRODUCT_PLANEX_FNW_3603_TX, 119 RTK_8139, "Planex FNW-3603 10/100BaseTX" }, 120 { CARDBUS_VENDOR_PLANEX, CARDBUS_PRODUCT_PLANEX_FNW_3800_TX, 121 RTK_8139, "Planex 10/100BaseTX FNW-3800-TX" }, 122 { CARDBUS_VENDOR_ABOCOM, CARDBUS_PRODUCT_ABOCOM_FE2000VX, 123 RTK_8139, "AboCom FE2000VX 10/100BaseTX" }, 124 125 { 0, 0, 0, NULL } 126 }; 127 128 static int rtk_cardbus_match __P((struct device *, struct cfdata *, void *)); 129 static void rtk_cardbus_attach __P((struct device *, struct device *, void *)); 130 static int rtk_cardbus_detach __P((struct device *, int)); 131 132 struct rtk_cardbus_softc { 133 struct rtk_softc sc_rtk; /* real rtk softc */ 134 135 /* CardBus-specific goo. */ 136 void *sc_ih; 137 cardbus_devfunc_t sc_ct; 138 cardbustag_t sc_tag; 139 int sc_csr; 140 int sc_cben; 141 int sc_bar_reg; 142 pcireg_t sc_bar_val; 143 bus_size_t sc_mapsize; 144 int sc_intrline; 145 }; 146 147 CFATTACH_DECL(rtk_cardbus, sizeof(struct rtk_cardbus_softc), 148 rtk_cardbus_match, rtk_cardbus_attach, rtk_cardbus_detach, rtk_activate); 149 150 const struct rtk_type *rtk_cardbus_lookup 151 __P((const struct cardbus_attach_args *)); 152 153 void rtk_cardbus_setup __P((struct rtk_cardbus_softc *)); 154 155 int rtk_cardbus_enable __P((struct rtk_softc *)); 156 void rtk_cardbus_disable __P((struct rtk_softc *)); 157 void rtk_cardbus_power __P((struct rtk_softc *, int)); 158 const struct rtk_type * 159 rtk_cardbus_lookup(ca) 160 const struct cardbus_attach_args *ca; 161 { 162 const struct rtk_type *t; 163 164 for (t = rtk_cardbus_devs; t->rtk_name != NULL; t++){ 165 if (CARDBUS_VENDOR(ca->ca_id) == t->rtk_vid && 166 CARDBUS_PRODUCT(ca->ca_id) == t->rtk_did) { 167 return (t); 168 } 169 } 170 return (NULL); 171 } 172 173 int 174 rtk_cardbus_match(parent, match, aux) 175 struct device *parent; 176 struct cfdata *match; 177 void *aux; 178 { 179 struct cardbus_attach_args *ca = aux; 180 181 if (rtk_cardbus_lookup(ca) != NULL) 182 return (1); 183 184 return (0); 185 } 186 187 188 void 189 rtk_cardbus_attach(parent, self, aux) 190 struct device *parent, *self; 191 void *aux; 192 { 193 struct rtk_cardbus_softc *csc = (struct rtk_cardbus_softc *)self; 194 struct rtk_softc *sc = &csc->sc_rtk; 195 struct cardbus_attach_args *ca = aux; 196 cardbus_devfunc_t ct = ca->ca_ct; 197 const struct rtk_type *t; 198 bus_addr_t adr; 199 200 sc->sc_dmat = ca->ca_dmat; 201 csc->sc_ct = ct; 202 csc->sc_tag = ca->ca_tag; 203 csc->sc_intrline = ca->ca_intrline; 204 205 t = rtk_cardbus_lookup(ca); 206 if (t == NULL) { 207 printf("\n"); 208 panic("rtk_cardbus_attach: impossible"); 209 } 210 printf(": %s\n", t->rtk_name); 211 212 /* 213 * Power management hooks. 214 */ 215 sc->sc_enable = rtk_cardbus_enable; 216 sc->sc_disable = rtk_cardbus_disable; 217 sc->sc_power = rtk_cardbus_power; 218 219 /* 220 * Map control/status registers. 221 */ 222 csc->sc_csr = CARDBUS_COMMAND_MASTER_ENABLE; 223 #ifdef RTK_USEIOSPACE 224 if (Cardbus_mapreg_map(ct, RTK_PCI_LOIO, CARDBUS_MAPREG_TYPE_IO, 0, 225 &sc->rtk_btag, &sc->rtk_bhandle, &adr, &csc->sc_mapsize) == 0) { 226 #if rbus 227 #else 228 (*ct->ct_cf->cardbus_io_open)(cc, 0, adr, adr+csc->sc_mapsize); 229 #endif 230 csc->sc_cben = CARDBUS_IO_ENABLE; 231 csc->sc_csr |= CARDBUS_COMMAND_IO_ENABLE; 232 csc->sc_bar_reg = RTK_PCI_LOIO; 233 csc->sc_bar_val = adr | CARDBUS_MAPREG_TYPE_IO; 234 } 235 #else 236 if (Cardbus_mapreg_map(ct, RTK_PCI_LOMEM, CARDBUS_MAPREG_TYPE_MEM, 0, 237 &sc->rtk_btag, &sc->rtk_bhandle, &adr, &csc->sc_mapsize) == 0) { 238 #if rbus 239 #else 240 (*ct->ct_cf->cardbus_mem_open)(cc, 0, adr, adr+csc->sc_mapsize); 241 #endif 242 csc->sc_cben = CARDBUS_MEM_ENABLE; 243 csc->sc_csr |= CARDBUS_COMMAND_MEM_ENABLE; 244 csc->sc_bar_reg = RTK_PCI_LOMEM; 245 csc->sc_bar_val = adr | CARDBUS_MAPREG_TYPE_MEM; 246 } 247 #endif 248 else { 249 printf("%s: unable to map deviceregisters\n", 250 sc->sc_dev.dv_xname); 251 return; 252 } 253 /* 254 * Handle power management nonsense and initialize the 255 * configuration registers. 256 */ 257 rtk_cardbus_setup(csc); 258 sc->rtk_type = t->rtk_basetype; 259 260 rtk_attach(sc); 261 262 /* 263 * Power down the socket. 264 */ 265 Cardbus_function_disable(csc->sc_ct); 266 } 267 268 int 269 rtk_cardbus_detach(self, flags) 270 struct device *self; 271 int flags; 272 { 273 struct rtk_cardbus_softc *csc = (void *) self; 274 struct rtk_softc *sc = &csc->sc_rtk; 275 struct cardbus_devfunc *ct = csc->sc_ct; 276 int rv; 277 278 #ifdef DIAGNOSTIC 279 if (ct == NULL) 280 panic("%s: data structure lacks", sc->sc_dev.dv_xname); 281 #endif 282 rv = rtk_detach(sc); 283 if (rv) 284 return (rv); 285 /* 286 * Unhook the interrut handler. 287 */ 288 if (csc->sc_ih != NULL) 289 cardbus_intr_disestablish(ct->ct_cc, ct->ct_cf, csc->sc_ih); 290 291 /* 292 * Release bus space and close window. 293 */ 294 if (csc->sc_bar_reg != 0) 295 Cardbus_mapreg_unmap(ct, csc->sc_bar_reg, 296 sc->rtk_btag, sc->rtk_bhandle, csc->sc_mapsize); 297 298 return (0); 299 } 300 301 void 302 rtk_cardbus_setup(csc) 303 struct rtk_cardbus_softc *csc; 304 { 305 struct rtk_softc *sc = &csc->sc_rtk; 306 cardbus_devfunc_t ct = csc->sc_ct; 307 cardbus_chipset_tag_t cc = ct->ct_cc; 308 cardbus_function_tag_t cf = ct->ct_cf; 309 pcireg_t reg,command; 310 int pmreg; 311 312 /* 313 * Handle power management nonsense. 314 */ 315 if (cardbus_get_capability(cc, cf, csc->sc_tag, 316 PCI_CAP_PWRMGMT, &pmreg, 0)) { 317 command = cardbus_conf_read(cc, cf, csc->sc_tag, pmreg + 4); 318 if (command & RTK_PSTATE_MASK) { 319 pcireg_t iobase, membase, irq; 320 321 /* Save important PCI config data. */ 322 iobase = cardbus_conf_read(cc, cf, csc->sc_tag, 323 RTK_PCI_LOIO); 324 membase = cardbus_conf_read(cc, cf,csc->sc_tag, 325 RTK_PCI_LOMEM); 326 irq = cardbus_conf_read(cc, cf,csc->sc_tag, 327 CARDBUS_INTERRUPT_REG); 328 329 /* Reset the power state. */ 330 printf("%s: chip is in D%d power mode " 331 "-- setting to D0\n", sc->sc_dev.dv_xname, 332 command & RTK_PSTATE_MASK); 333 command &= 0xFFFFFFFC; 334 cardbus_conf_write(cc, cf, csc->sc_tag, 335 pmreg + 4, command); 336 337 /* Restore PCI config data. */ 338 cardbus_conf_write(cc, cf, csc->sc_tag, 339 RTK_PCI_LOIO, iobase); 340 cardbus_conf_write(cc, cf, csc->sc_tag, 341 RTK_PCI_LOMEM, membase); 342 cardbus_conf_write(cc, cf, csc->sc_tag, 343 CARDBUS_INTERRUPT_REG, irq); 344 } 345 } 346 347 /* Make sure the right access type is on the CardBus bridge. */ 348 (*ct->ct_cf->cardbus_ctrl)(cc, csc->sc_cben); 349 (*ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_BM_ENABLE); 350 351 /* Program the BAR */ 352 cardbus_conf_write(cc, cf, csc->sc_tag, 353 csc->sc_bar_reg, csc->sc_bar_val); 354 355 /* Enable the appropriate bits in the CARDBUS CSR. */ 356 reg = cardbus_conf_read(cc, cf, csc->sc_tag, 357 CARDBUS_COMMAND_STATUS_REG); 358 reg &= ~(CARDBUS_COMMAND_IO_ENABLE|CARDBUS_COMMAND_MEM_ENABLE); 359 reg |= csc->sc_csr; 360 cardbus_conf_write(cc, cf, csc->sc_tag, 361 CARDBUS_COMMAND_STATUS_REG, reg); 362 363 /* 364 * Make sure the latency timer is set to some reasonable 365 * value. 366 */ 367 reg = cardbus_conf_read(cc, cf, csc->sc_tag, CARDBUS_BHLC_REG); 368 if (CARDBUS_LATTIMER(reg) < 0x20) { 369 reg &= ~(CARDBUS_LATTIMER_MASK << CARDBUS_LATTIMER_SHIFT); 370 reg |= (0x20 << CARDBUS_LATTIMER_SHIFT); 371 cardbus_conf_write(cc, cf, csc->sc_tag, CARDBUS_BHLC_REG, reg); 372 } 373 } 374 375 int 376 rtk_cardbus_enable(sc) 377 struct rtk_softc *sc; 378 { 379 struct rtk_cardbus_softc *csc = (void *) sc; 380 cardbus_devfunc_t ct = csc->sc_ct; 381 cardbus_chipset_tag_t cc = ct->ct_cc; 382 cardbus_function_tag_t cf = ct->ct_cf; 383 384 /* 385 * Power on the socket. 386 */ 387 Cardbus_function_enable(ct); 388 389 /* 390 * Set up the PCI configuration registers. 391 */ 392 rtk_cardbus_setup(csc); 393 394 /* 395 * Map and establish the interrupt. 396 */ 397 csc->sc_ih = cardbus_intr_establish(cc, cf, csc->sc_intrline, 398 IPL_NET, rtk_intr, sc); 399 if (csc->sc_ih == NULL) { 400 printf("%s: unable to establish interrupt at %d\n", 401 sc->sc_dev.dv_xname, csc->sc_intrline); 402 Cardbus_function_disable(csc->sc_ct); 403 return (1); 404 } 405 printf("%s: interrupting at %d\n", sc->sc_dev.dv_xname, 406 csc->sc_intrline); 407 return (0); 408 } 409 410 void 411 rtk_cardbus_disable(sc) 412 struct rtk_softc *sc; 413 { 414 struct rtk_cardbus_softc *csc = (void *) sc; 415 cardbus_devfunc_t ct = csc->sc_ct; 416 cardbus_chipset_tag_t cc = ct->ct_cc; 417 cardbus_function_tag_t cf = ct->ct_cf; 418 419 /* Unhook the interrupt handler. */ 420 cardbus_intr_disestablish(cc, cf, csc->sc_ih); 421 422 /* Power down the socket. */ 423 Cardbus_function_disable(ct); 424 } 425 426 void 427 rtk_cardbus_power(sc, why) 428 struct rtk_softc *sc; 429 int why; 430 { 431 struct rtk_cardbus_softc *csc = (void *) sc; 432 433 if (why == PWR_RESUME) { 434 /* 435 * Give the PCI configuration registers a kick 436 * in the head. 437 */ 438 #ifdef DIAGNOSTIC 439 if (RTK_IS_ENABLED(sc) == 0) 440 panic("rtk_cardbus_power"); 441 #endif 442 rtk_cardbus_setup(csc); 443 } 444 } 445
Indexes created Fri Oct 03 02:09:57 GMT 2025