if_rtk_cardbus.c revision 1.6
1 /* $NetBSD: if_rtk_cardbus.c,v 1.6 2001/11/13 12:51:13 lukem 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 1.6 2001/11/13 12:51:13 lukem 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_REALTEK, CARDBUS_PRODUCT_REALTEK_RT8138, 110 "RealTek 8138 10/100BaseTX", RTK_8139 }, 111 { CARDBUS_VENDOR_REALTEK, CARDBUS_PRODUCT_REALTEK_RT8139, 112 "RealTek 8139 10/100BaseTX", RTK_8139 }, 113 { CARDBUS_VENDOR_COREGA, CARDBUS_PRODUCT_COREGA_CB_TXD, 114 "Corega FEther CB-TXD 10/100BaseTX", RTK_8139 }, 115 { 0, 0, NULL, 0 } 116 }; 117 118 static int rtk_cardbus_match __P((struct device *, struct cfdata *, void *)); 119 static void rtk_cardbus_attach __P((struct device *, struct device *, void *)); 120 static int rtk_cardbus_detach __P((struct device *, int)); 121 122 struct rtk_cardbus_softc { 123 struct rtk_softc sc_rtk; /* real rtk softc */ 124 125 /* CardBus-specific goo. */ 126 void *sc_ih; 127 cardbus_devfunc_t sc_ct; 128 cardbustag_t sc_tag; 129 int sc_csr; 130 int sc_cben; 131 int sc_bar_reg; 132 pcireg_t sc_bar_val; 133 bus_size_t sc_mapsize; 134 int sc_intrline; 135 }; 136 137 struct cfattach rtk_cardbus_ca = { 138 sizeof(struct rtk_cardbus_softc), 139 rtk_cardbus_match, rtk_cardbus_attach, 140 rtk_cardbus_detach, rtk_activate, 141 }; 142 143 const struct rtk_type *rtk_cardbus_lookup 144 __P((const struct cardbus_attach_args *)); 145 146 void rtk_cardbus_setup __P((struct rtk_cardbus_softc *)); 147 148 int rtk_cardbus_enable __P((struct rtk_softc *)); 149 void rtk_cardbus_disable __P((struct rtk_softc *)); 150 void rtk_cardbus_power __P((struct rtk_softc *, int)); 151 const struct rtk_type * 152 rtk_cardbus_lookup(ca) 153 const struct cardbus_attach_args *ca; 154 { 155 const struct rtk_type *t; 156 157 for (t = rtk_cardbus_devs; t->rtk_name != NULL; t++){ 158 if (CARDBUS_VENDOR(ca->ca_id) == t->rtk_vid && 159 CARDBUS_PRODUCT(ca->ca_id) == t->rtk_did) { 160 return (t); 161 } 162 } 163 return (NULL); 164 } 165 166 int 167 rtk_cardbus_match(parent, match, aux) 168 struct device *parent; 169 struct cfdata *match; 170 void *aux; 171 { 172 struct cardbus_attach_args *ca = aux; 173 174 if (rtk_cardbus_lookup(ca) != NULL) 175 return (1); 176 177 return (0); 178 } 179 180 181 void 182 rtk_cardbus_attach(parent, self, aux) 183 struct device *parent, *self; 184 void *aux; 185 { 186 struct rtk_cardbus_softc *csc = (struct rtk_cardbus_softc *)self; 187 struct rtk_softc *sc = &csc->sc_rtk; 188 struct cardbus_attach_args *ca = aux; 189 cardbus_devfunc_t ct = ca->ca_ct; 190 const struct rtk_type *t; 191 bus_addr_t adr; 192 193 sc->sc_dmat = ca->ca_dmat; 194 csc->sc_ct = ct; 195 csc->sc_tag = ca->ca_tag; 196 csc->sc_intrline = ca->ca_intrline; 197 198 t = rtk_cardbus_lookup(ca); 199 if (t == NULL) { 200 printf("\n"); 201 panic("rtk_cardbus_attach: impossible"); 202 } 203 printf(": %s\n", t->rtk_name); 204 205 /* 206 * Power management hooks. 207 */ 208 sc->sc_enable = rtk_cardbus_enable; 209 sc->sc_disable = rtk_cardbus_disable; 210 sc->sc_power = rtk_cardbus_power; 211 212 /* 213 * Map control/status registers. 214 */ 215 csc->sc_csr = CARDBUS_COMMAND_MASTER_ENABLE; 216 #ifdef RTK_USEIOSPACE 217 if (Cardbus_mapreg_map(ct, RTK_PCI_LOIO, CARDBUS_MAPREG_TYPE_IO, 0, 218 &sc->rtk_btag, &sc->rtk_bhandle, &adr, &csc->sc_mapsize) == 0) { 219 #if rbus 220 #else 221 (*ct->ct_cf->cardbus_io_open)(cc, 0, adr, adr+csc->sc_mapsize); 222 #endif 223 csc->sc_cben = CARDBUS_IO_ENABLE; 224 csc->sc_csr |= CARDBUS_COMMAND_IO_ENABLE; 225 csc->sc_bar_reg = RTK_PCI_LOIO; 226 csc->sc_bar_val = adr | CARDBUS_MAPREG_TYPE_IO; 227 } 228 #else 229 if (Cardbus_mapreg_map(ct, RTK_PCI_LOMEM, CARDBUS_MAPREG_TYPE_MEM, 0, 230 &sc->rtk_btag, &sc->rtk_bhandle, &adr, &csc->sc_mapsize) == 0) { 231 #if rbus 232 #else 233 (*ct->ct_cf->cardbus_mem_open)(cc, 0, adr, adr+csc->sc_mapsize); 234 #endif 235 csc->sc_cben = CARDBUS_MEM_ENABLE; 236 csc->sc_csr |= CARDBUS_COMMAND_MEM_ENABLE; 237 csc->sc_bar_reg = RTK_PCI_LOMEM; 238 csc->sc_bar_val = adr | CARDBUS_MAPREG_TYPE_MEM; 239 } 240 #endif 241 else { 242 printf("%s: unable to map deviceregisters\n", 243 sc->sc_dev.dv_xname); 244 return; 245 } 246 /* 247 * Handle power management nonsense and initialize the 248 * configuration registers. 249 */ 250 rtk_cardbus_setup(csc); 251 sc->rtk_type = t->rtk_type; 252 253 rtk_attach(sc); 254 255 /* 256 * Power down the socket. 257 */ 258 Cardbus_function_disable(csc->sc_ct); 259 } 260 261 int 262 rtk_cardbus_detach(self, flags) 263 struct device *self; 264 int flags; 265 { 266 struct rtk_cardbus_softc *csc = (void *) self; 267 struct rtk_softc *sc = &csc->sc_rtk; 268 struct cardbus_devfunc *ct = csc->sc_ct; 269 int rv; 270 271 #ifdef DIAGNOSTIC 272 if (ct == NULL) 273 panic("%s: data structure lacks\n", sc->sc_dev.dv_xname); 274 #endif 275 rv = rtk_detach(sc); 276 if (rv) 277 return (rv); 278 /* 279 * Unhook the interrut handler. 280 */ 281 if (csc->sc_ih != NULL) 282 cardbus_intr_disestablish(ct->ct_cc, ct->ct_cf, csc->sc_ih); 283 284 /* 285 * Release bus space and close window. 286 */ 287 if (csc->sc_bar_reg != 0) 288 Cardbus_mapreg_unmap(ct, csc->sc_bar_reg, 289 sc->rtk_btag, sc->rtk_bhandle, csc->sc_mapsize); 290 291 return (0); 292 } 293 294 void 295 rtk_cardbus_setup(csc) 296 struct rtk_cardbus_softc *csc; 297 { 298 struct rtk_softc *sc = &csc->sc_rtk; 299 cardbus_devfunc_t ct = csc->sc_ct; 300 cardbus_chipset_tag_t cc = ct->ct_cc; 301 cardbus_function_tag_t cf = ct->ct_cf; 302 pcireg_t reg,command; 303 int pmreg; 304 305 /* 306 * Handle power management nonsense. 307 */ 308 if (cardbus_get_capability(cc, cf, csc->sc_tag, 309 PCI_CAP_PWRMGMT, &pmreg, 0)) { 310 command = cardbus_conf_read(cc, cf, csc->sc_tag, pmreg + 4); 311 if (command & RTK_PSTATE_MASK) { 312 pcireg_t iobase, membase, irq; 313 314 /* Save important PCI config data. */ 315 iobase = cardbus_conf_read(cc, cf, csc->sc_tag, 316 RTK_PCI_LOIO); 317 membase = cardbus_conf_read(cc, cf,csc->sc_tag, 318 RTK_PCI_LOMEM); 319 irq = cardbus_conf_read(cc, cf,csc->sc_tag, 320 PCI_PRODUCT_DELTA_8139); 321 322 /* Reset the power state. */ 323 printf("%s: chip is is in D%d power mode " 324 "-- setting to D0\n", sc->sc_dev.dv_xname, 325 command & RTK_PSTATE_MASK); 326 command &= 0xFFFFFFFC; 327 cardbus_conf_write(cc, cf, csc->sc_tag, 328 pmreg + 4, command); 329 330 /* Restore PCI config data. */ 331 cardbus_conf_write(cc, cf, csc->sc_tag, 332 RTK_PCI_LOIO, iobase); 333 cardbus_conf_write(cc, cf, csc->sc_tag, 334 RTK_PCI_LOMEM, membase); 335 cardbus_conf_write(cc, cf, csc->sc_tag, 336 PCI_PRODUCT_DELTA_8139, irq); 337 } 338 } 339 340 /* Make sure the right access type is on the CardBus bridge. */ 341 (*ct->ct_cf->cardbus_ctrl)(cc, csc->sc_cben); 342 (*ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_BM_ENABLE); 343 344 /* Program the BAR */ 345 cardbus_conf_write(cc, cf, csc->sc_tag, 346 csc->sc_bar_reg, csc->sc_bar_val); 347 348 /* Enable the appropriate bits in the CARDBUS CSR. */ 349 reg = cardbus_conf_read(cc, cf, csc->sc_tag, 350 CARDBUS_COMMAND_STATUS_REG); 351 reg &= ~(CARDBUS_COMMAND_IO_ENABLE|CARDBUS_COMMAND_MEM_ENABLE); 352 reg |= csc->sc_csr; 353 cardbus_conf_write(cc, cf, csc->sc_tag, 354 CARDBUS_COMMAND_STATUS_REG, reg); 355 356 /* 357 * Make sure the latency timer is set to some reasonable 358 * value. 359 */ 360 reg = cardbus_conf_read(cc, cf, csc->sc_tag, CARDBUS_BHLC_REG); 361 if (CARDBUS_LATTIMER(reg) < 0x20) { 362 reg &= ~(CARDBUS_LATTIMER_MASK << CARDBUS_LATTIMER_SHIFT); 363 reg |= (0x20 << CARDBUS_LATTIMER_SHIFT); 364 cardbus_conf_write(cc, cf, csc->sc_tag, CARDBUS_BHLC_REG, reg); 365 } 366 } 367 368 int 369 rtk_cardbus_enable(sc) 370 struct rtk_softc *sc; 371 { 372 struct rtk_cardbus_softc *csc = (void *) sc; 373 cardbus_devfunc_t ct = csc->sc_ct; 374 cardbus_chipset_tag_t cc = ct->ct_cc; 375 cardbus_function_tag_t cf = ct->ct_cf; 376 377 /* 378 * Power on the socket. 379 */ 380 Cardbus_function_enable(ct); 381 382 /* 383 * Set up the PCI configuration registers. 384 */ 385 rtk_cardbus_setup(csc); 386 387 /* 388 * Map and establish the interrupt. 389 */ 390 csc->sc_ih = cardbus_intr_establish(cc, cf, csc->sc_intrline, 391 IPL_NET, rtk_intr, sc); 392 if (csc->sc_ih == NULL) { 393 printf("%s: unable to establish interrupt at %d\n", 394 sc->sc_dev.dv_xname, csc->sc_intrline); 395 Cardbus_function_disable(csc->sc_ct); 396 return (1); 397 } 398 printf("%s: interrupting at %d\n", sc->sc_dev.dv_xname, 399 csc->sc_intrline); 400 return (0); 401 } 402 403 void 404 rtk_cardbus_disable(sc) 405 struct rtk_softc *sc; 406 { 407 struct rtk_cardbus_softc *csc = (void *) sc; 408 cardbus_devfunc_t ct = csc->sc_ct; 409 cardbus_chipset_tag_t cc = ct->ct_cc; 410 cardbus_function_tag_t cf = ct->ct_cf; 411 412 /* Unhook the interrupt handler. */ 413 cardbus_intr_disestablish(cc, cf, csc->sc_ih); 414 415 /* Power down the socket. */ 416 Cardbus_function_disable(ct); 417 } 418 419 void 420 rtk_cardbus_power(sc, why) 421 struct rtk_softc *sc; 422 int why; 423 { 424 struct rtk_cardbus_softc *csc = (void *) sc; 425 426 if (why == PWR_RESUME) { 427 /* 428 * Give the PCI configuration registers a kick 429 * in the head. 430 */ 431 #ifdef DIAGNOSTIC 432 if (RTK_IS_ENABLED(sc) == 0) 433 panic("rtk_cardbus_power"); 434 #endif 435 rtk_cardbus_setup(csc); 436 } 437 } 438
Indexes created Fri Oct 03 02:09:57 GMT 2025