if_rtk_cardbus.c revision 1.7
1 /* $NetBSD: if_rtk_cardbus.c,v 1.7 2002/01/04 15:24:24 kanaoka 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 1.7 2002/01/04 15:24:24 kanaoka 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 struct cfattach rtk_cardbus_ca = { 140 sizeof(struct rtk_cardbus_softc), 141 rtk_cardbus_match, rtk_cardbus_attach, 142 rtk_cardbus_detach, rtk_activate, 143 }; 144 145 const struct rtk_type *rtk_cardbus_lookup 146 __P((const struct cardbus_attach_args *)); 147 148 void rtk_cardbus_setup __P((struct rtk_cardbus_softc *)); 149 150 int rtk_cardbus_enable __P((struct rtk_softc *)); 151 void rtk_cardbus_disable __P((struct rtk_softc *)); 152 void rtk_cardbus_power __P((struct rtk_softc *, int)); 153 const struct rtk_type * 154 rtk_cardbus_lookup(ca) 155 const struct cardbus_attach_args *ca; 156 { 157 const struct rtk_type *t; 158 159 for (t = rtk_cardbus_devs; t->rtk_name != NULL; t++){ 160 if (CARDBUS_VENDOR(ca->ca_id) == t->rtk_vid && 161 CARDBUS_PRODUCT(ca->ca_id) == t->rtk_did) { 162 return (t); 163 } 164 } 165 return (NULL); 166 } 167 168 int 169 rtk_cardbus_match(parent, match, aux) 170 struct device *parent; 171 struct cfdata *match; 172 void *aux; 173 { 174 struct cardbus_attach_args *ca = aux; 175 176 if (rtk_cardbus_lookup(ca) != NULL) 177 return (1); 178 179 return (0); 180 } 181 182 183 void 184 rtk_cardbus_attach(parent, self, aux) 185 struct device *parent, *self; 186 void *aux; 187 { 188 struct rtk_cardbus_softc *csc = (struct rtk_cardbus_softc *)self; 189 struct rtk_softc *sc = &csc->sc_rtk; 190 struct cardbus_attach_args *ca = aux; 191 cardbus_devfunc_t ct = ca->ca_ct; 192 const struct rtk_type *t; 193 bus_addr_t adr; 194 195 sc->sc_dmat = ca->ca_dmat; 196 csc->sc_ct = ct; 197 csc->sc_tag = ca->ca_tag; 198 csc->sc_intrline = ca->ca_intrline; 199 200 t = rtk_cardbus_lookup(ca); 201 if (t == NULL) { 202 printf("\n"); 203 panic("rtk_cardbus_attach: impossible"); 204 } 205 printf(": %s\n", t->rtk_name); 206 207 /* 208 * Power management hooks. 209 */ 210 sc->sc_enable = rtk_cardbus_enable; 211 sc->sc_disable = rtk_cardbus_disable; 212 sc->sc_power = rtk_cardbus_power; 213 214 /* 215 * Map control/status registers. 216 */ 217 csc->sc_csr = CARDBUS_COMMAND_MASTER_ENABLE; 218 #ifdef RTK_USEIOSPACE 219 if (Cardbus_mapreg_map(ct, RTK_PCI_LOIO, CARDBUS_MAPREG_TYPE_IO, 0, 220 &sc->rtk_btag, &sc->rtk_bhandle, &adr, &csc->sc_mapsize) == 0) { 221 #if rbus 222 #else 223 (*ct->ct_cf->cardbus_io_open)(cc, 0, adr, adr+csc->sc_mapsize); 224 #endif 225 csc->sc_cben = CARDBUS_IO_ENABLE; 226 csc->sc_csr |= CARDBUS_COMMAND_IO_ENABLE; 227 csc->sc_bar_reg = RTK_PCI_LOIO; 228 csc->sc_bar_val = adr | CARDBUS_MAPREG_TYPE_IO; 229 } 230 #else 231 if (Cardbus_mapreg_map(ct, RTK_PCI_LOMEM, CARDBUS_MAPREG_TYPE_MEM, 0, 232 &sc->rtk_btag, &sc->rtk_bhandle, &adr, &csc->sc_mapsize) == 0) { 233 #if rbus 234 #else 235 (*ct->ct_cf->cardbus_mem_open)(cc, 0, adr, adr+csc->sc_mapsize); 236 #endif 237 csc->sc_cben = CARDBUS_MEM_ENABLE; 238 csc->sc_csr |= CARDBUS_COMMAND_MEM_ENABLE; 239 csc->sc_bar_reg = RTK_PCI_LOMEM; 240 csc->sc_bar_val = adr | CARDBUS_MAPREG_TYPE_MEM; 241 } 242 #endif 243 else { 244 printf("%s: unable to map deviceregisters\n", 245 sc->sc_dev.dv_xname); 246 return; 247 } 248 /* 249 * Handle power management nonsense and initialize the 250 * configuration registers. 251 */ 252 rtk_cardbus_setup(csc); 253 sc->rtk_type = t->rtk_type; 254 255 rtk_attach(sc); 256 257 /* 258 * Power down the socket. 259 */ 260 Cardbus_function_disable(csc->sc_ct); 261 } 262 263 int 264 rtk_cardbus_detach(self, flags) 265 struct device *self; 266 int flags; 267 { 268 struct rtk_cardbus_softc *csc = (void *) self; 269 struct rtk_softc *sc = &csc->sc_rtk; 270 struct cardbus_devfunc *ct = csc->sc_ct; 271 int rv; 272 273 #ifdef DIAGNOSTIC 274 if (ct == NULL) 275 panic("%s: data structure lacks\n", sc->sc_dev.dv_xname); 276 #endif 277 rv = rtk_detach(sc); 278 if (rv) 279 return (rv); 280 /* 281 * Unhook the interrut handler. 282 */ 283 if (csc->sc_ih != NULL) 284 cardbus_intr_disestablish(ct->ct_cc, ct->ct_cf, csc->sc_ih); 285 286 /* 287 * Release bus space and close window. 288 */ 289 if (csc->sc_bar_reg != 0) 290 Cardbus_mapreg_unmap(ct, csc->sc_bar_reg, 291 sc->rtk_btag, sc->rtk_bhandle, csc->sc_mapsize); 292 293 return (0); 294 } 295 296 void 297 rtk_cardbus_setup(csc) 298 struct rtk_cardbus_softc *csc; 299 { 300 struct rtk_softc *sc = &csc->sc_rtk; 301 cardbus_devfunc_t ct = csc->sc_ct; 302 cardbus_chipset_tag_t cc = ct->ct_cc; 303 cardbus_function_tag_t cf = ct->ct_cf; 304 pcireg_t reg,command; 305 int pmreg; 306 307 /* 308 * Handle power management nonsense. 309 */ 310 if (cardbus_get_capability(cc, cf, csc->sc_tag, 311 PCI_CAP_PWRMGMT, &pmreg, 0)) { 312 command = cardbus_conf_read(cc, cf, csc->sc_tag, pmreg + 4); 313 if (command & RTK_PSTATE_MASK) { 314 pcireg_t iobase, membase, irq; 315 316 /* Save important PCI config data. */ 317 iobase = cardbus_conf_read(cc, cf, csc->sc_tag, 318 RTK_PCI_LOIO); 319 membase = cardbus_conf_read(cc, cf,csc->sc_tag, 320 RTK_PCI_LOMEM); 321 irq = cardbus_conf_read(cc, cf,csc->sc_tag, 322 PCI_PRODUCT_DELTA_8139); 323 324 /* Reset the power state. */ 325 printf("%s: chip is is in D%d power mode " 326 "-- setting to D0\n", sc->sc_dev.dv_xname, 327 command & RTK_PSTATE_MASK); 328 command &= 0xFFFFFFFC; 329 cardbus_conf_write(cc, cf, csc->sc_tag, 330 pmreg + 4, command); 331 332 /* Restore PCI config data. */ 333 cardbus_conf_write(cc, cf, csc->sc_tag, 334 RTK_PCI_LOIO, iobase); 335 cardbus_conf_write(cc, cf, csc->sc_tag, 336 RTK_PCI_LOMEM, membase); 337 cardbus_conf_write(cc, cf, csc->sc_tag, 338 PCI_PRODUCT_DELTA_8139, irq); 339 } 340 } 341 342 /* Make sure the right access type is on the CardBus bridge. */ 343 (*ct->ct_cf->cardbus_ctrl)(cc, csc->sc_cben); 344 (*ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_BM_ENABLE); 345 346 /* Program the BAR */ 347 cardbus_conf_write(cc, cf, csc->sc_tag, 348 csc->sc_bar_reg, csc->sc_bar_val); 349 350 /* Enable the appropriate bits in the CARDBUS CSR. */ 351 reg = cardbus_conf_read(cc, cf, csc->sc_tag, 352 CARDBUS_COMMAND_STATUS_REG); 353 reg &= ~(CARDBUS_COMMAND_IO_ENABLE|CARDBUS_COMMAND_MEM_ENABLE); 354 reg |= csc->sc_csr; 355 cardbus_conf_write(cc, cf, csc->sc_tag, 356 CARDBUS_COMMAND_STATUS_REG, reg); 357 358 /* 359 * Make sure the latency timer is set to some reasonable 360 * value. 361 */ 362 reg = cardbus_conf_read(cc, cf, csc->sc_tag, CARDBUS_BHLC_REG); 363 if (CARDBUS_LATTIMER(reg) < 0x20) { 364 reg &= ~(CARDBUS_LATTIMER_MASK << CARDBUS_LATTIMER_SHIFT); 365 reg |= (0x20 << CARDBUS_LATTIMER_SHIFT); 366 cardbus_conf_write(cc, cf, csc->sc_tag, CARDBUS_BHLC_REG, reg); 367 } 368 } 369 370 int 371 rtk_cardbus_enable(sc) 372 struct rtk_softc *sc; 373 { 374 struct rtk_cardbus_softc *csc = (void *) sc; 375 cardbus_devfunc_t ct = csc->sc_ct; 376 cardbus_chipset_tag_t cc = ct->ct_cc; 377 cardbus_function_tag_t cf = ct->ct_cf; 378 379 /* 380 * Power on the socket. 381 */ 382 Cardbus_function_enable(ct); 383 384 /* 385 * Set up the PCI configuration registers. 386 */ 387 rtk_cardbus_setup(csc); 388 389 /* 390 * Map and establish the interrupt. 391 */ 392 csc->sc_ih = cardbus_intr_establish(cc, cf, csc->sc_intrline, 393 IPL_NET, rtk_intr, sc); 394 if (csc->sc_ih == NULL) { 395 printf("%s: unable to establish interrupt at %d\n", 396 sc->sc_dev.dv_xname, csc->sc_intrline); 397 Cardbus_function_disable(csc->sc_ct); 398 return (1); 399 } 400 printf("%s: interrupting at %d\n", sc->sc_dev.dv_xname, 401 csc->sc_intrline); 402 return (0); 403 } 404 405 void 406 rtk_cardbus_disable(sc) 407 struct rtk_softc *sc; 408 { 409 struct rtk_cardbus_softc *csc = (void *) sc; 410 cardbus_devfunc_t ct = csc->sc_ct; 411 cardbus_chipset_tag_t cc = ct->ct_cc; 412 cardbus_function_tag_t cf = ct->ct_cf; 413 414 /* Unhook the interrupt handler. */ 415 cardbus_intr_disestablish(cc, cf, csc->sc_ih); 416 417 /* Power down the socket. */ 418 Cardbus_function_disable(ct); 419 } 420 421 void 422 rtk_cardbus_power(sc, why) 423 struct rtk_softc *sc; 424 int why; 425 { 426 struct rtk_cardbus_softc *csc = (void *) sc; 427 428 if (why == PWR_RESUME) { 429 /* 430 * Give the PCI configuration registers a kick 431 * in the head. 432 */ 433 #ifdef DIAGNOSTIC 434 if (RTK_IS_ENABLED(sc) == 0) 435 panic("rtk_cardbus_power"); 436 #endif 437 rtk_cardbus_setup(csc); 438 } 439 } 440
Indexes created Fri Oct 03 02:09:57 GMT 2025