if_rtk_cardbus.c revision 1.5
1 /* $NetBSD: if_rtk_cardbus.c,v 1.5 2001/06/20 05:41:27 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 "opt_inet.h" 39 #include "opt_ns.h" 40 #include "bpfilter.h" 41 #include "rnd.h" 42 43 #include <sys/param.h> 44 #include <sys/systm.h> 45 #include <sys/callout.h> 46 #include <sys/device.h> 47 #include <sys/sockio.h> 48 #include <sys/mbuf.h> 49 #include <sys/malloc.h> 50 #include <sys/kernel.h> 51 #include <sys/socket.h> 52 53 #include <net/if.h> 54 #include <net/if_arp.h> 55 #include <net/if_ether.h> 56 #include <net/if_dl.h> 57 #include <net/if_media.h> 58 #ifdef INET 59 #include <netinet/in.h> 60 #include <netinet/if_inarp.h> 61 #endif 62 #ifdef NS 63 #include <netns/ns.h> 64 #include <netns/ns_if.h> 65 #endif 66 67 #if NBPFILTER > 0 68 #include <net/bpf.h> 69 #endif 70 #if NRND > 0 71 #include <sys/rnd.h> 72 #endif 73 74 #include <machine/bus.h> 75 76 #include <dev/pci/pcireg.h> 77 #include <dev/pci/pcivar.h> 78 #include <dev/pci/pcidevs.h> 79 80 #include <dev/cardbus/cardbusvar.h> 81 #include <dev/cardbus/cardbusdevs.h> 82 83 #include <dev/mii/mii.h> 84 #include <dev/mii/miivar.h> 85 86 /* 87 * Default to using PIO access for this driver. On SMP systems, 88 * there appear to be problems with memory mapped mode: it looks like 89 * doing too many memory mapped access back to back in rapid succession 90 * can hang the bus. I'm inclined to blame this on crummy design/construction 91 * on the part of RealTek. Memory mapped mode does appear to work on 92 * uniprocessor systems though. 93 */ 94 #define RTK_USEIOSPACE 95 96 #include <dev/ic/rtl81x9reg.h> 97 #include <dev/ic/rtl81x9var.h> 98 99 /* 100 * Various supported device vendors/types and their names. 101 */ 102 static const struct rtk_type rtk_cardbus_devs[] = { 103 { CARDBUS_VENDOR_ACCTON, CARDBUS_PRODUCT_ACCTON_MPX5030, 104 "Accton MPX 5030/5038 10/100BaseTX", 105 RTK_8139 }, 106 { CARDBUS_VENDOR_REALTEK, CARDBUS_PRODUCT_REALTEK_RT8138, 107 "RealTek 8138 10/100BaseTX", RTK_8139 }, 108 { CARDBUS_VENDOR_REALTEK, CARDBUS_PRODUCT_REALTEK_RT8139, 109 "RealTek 8139 10/100BaseTX", RTK_8139 }, 110 { CARDBUS_VENDOR_COREGA, CARDBUS_PRODUCT_COREGA_CB_TXD, 111 "Corega FEther CB-TXD 10/100BaseTX", RTK_8139 }, 112 { 0, 0, NULL, 0 } 113 }; 114 115 static int rtk_cardbus_match __P((struct device *, struct cfdata *, void *)); 116 static void rtk_cardbus_attach __P((struct device *, struct device *, void *)); 117 static int rtk_cardbus_detach __P((struct device *, int)); 118 119 struct rtk_cardbus_softc { 120 struct rtk_softc sc_rtk; /* real rtk softc */ 121 122 /* CardBus-specific goo. */ 123 void *sc_ih; 124 cardbus_devfunc_t sc_ct; 125 cardbustag_t sc_tag; 126 int sc_csr; 127 int sc_cben; 128 int sc_bar_reg; 129 pcireg_t sc_bar_val; 130 bus_size_t sc_mapsize; 131 int sc_intrline; 132 }; 133 134 struct cfattach rtk_cardbus_ca = { 135 sizeof(struct rtk_cardbus_softc), 136 rtk_cardbus_match, rtk_cardbus_attach, 137 rtk_cardbus_detach, rtk_activate, 138 }; 139 140 const struct rtk_type *rtk_cardbus_lookup 141 __P((const struct cardbus_attach_args *)); 142 143 void rtk_cardbus_setup __P((struct rtk_cardbus_softc *)); 144 145 int rtk_cardbus_enable __P((struct rtk_softc *)); 146 void rtk_cardbus_disable __P((struct rtk_softc *)); 147 void rtk_cardbus_power __P((struct rtk_softc *, int)); 148 const struct rtk_type * 149 rtk_cardbus_lookup(ca) 150 const struct cardbus_attach_args *ca; 151 { 152 const struct rtk_type *t; 153 154 for (t = rtk_cardbus_devs; t->rtk_name != NULL; t++){ 155 if (CARDBUS_VENDOR(ca->ca_id) == t->rtk_vid && 156 CARDBUS_PRODUCT(ca->ca_id) == t->rtk_did) { 157 return (t); 158 } 159 } 160 return (NULL); 161 } 162 163 int 164 rtk_cardbus_match(parent, match, aux) 165 struct device *parent; 166 struct cfdata *match; 167 void *aux; 168 { 169 struct cardbus_attach_args *ca = aux; 170 171 if (rtk_cardbus_lookup(ca) != NULL) 172 return (1); 173 174 return (0); 175 } 176 177 178 void 179 rtk_cardbus_attach(parent, self, aux) 180 struct device *parent, *self; 181 void *aux; 182 { 183 struct rtk_cardbus_softc *csc = (struct rtk_cardbus_softc *)self; 184 struct rtk_softc *sc = &csc->sc_rtk; 185 struct cardbus_attach_args *ca = aux; 186 cardbus_devfunc_t ct = ca->ca_ct; 187 const struct rtk_type *t; 188 bus_addr_t adr; 189 190 sc->sc_dmat = ca->ca_dmat; 191 csc->sc_ct = ct; 192 csc->sc_tag = ca->ca_tag; 193 csc->sc_intrline = ca->ca_intrline; 194 195 t = rtk_cardbus_lookup(ca); 196 if (t == NULL) { 197 printf("\n"); 198 panic("rtk_cardbus_attach: impossible"); 199 } 200 printf(": %s\n", t->rtk_name); 201 202 /* 203 * Power management hooks. 204 */ 205 sc->sc_enable = rtk_cardbus_enable; 206 sc->sc_disable = rtk_cardbus_disable; 207 sc->sc_power = rtk_cardbus_power; 208 209 /* 210 * Map control/status registers. 211 */ 212 csc->sc_csr = CARDBUS_COMMAND_MASTER_ENABLE; 213 #ifdef RTK_USEIOSPACE 214 if (Cardbus_mapreg_map(ct, RTK_PCI_LOIO, CARDBUS_MAPREG_TYPE_IO, 0, 215 &sc->rtk_btag, &sc->rtk_bhandle, &adr, &csc->sc_mapsize) == 0) { 216 #if rbus 217 #else 218 (*ct->ct_cf->cardbus_io_open)(cc, 0, adr, adr+csc->sc_mapsize); 219 #endif 220 csc->sc_cben = CARDBUS_IO_ENABLE; 221 csc->sc_csr |= CARDBUS_COMMAND_IO_ENABLE; 222 csc->sc_bar_reg = RTK_PCI_LOIO; 223 csc->sc_bar_val = adr | CARDBUS_MAPREG_TYPE_IO; 224 } 225 #else 226 if (Cardbus_mapreg_map(ct, RTK_PCI_LOMEM, CARDBUS_MAPREG_TYPE_MEM, 0, 227 &sc->rtk_btag, &sc->rtk_bhandle, &adr, &csc->sc_mapsize) == 0) { 228 #if rbus 229 #else 230 (*ct->ct_cf->cardbus_mem_open)(cc, 0, adr, adr+csc->sc_mapsize); 231 #endif 232 csc->sc_cben = CARDBUS_MEM_ENABLE; 233 csc->sc_csr |= CARDBUS_COMMAND_MEM_ENABLE; 234 csc->sc_bar_reg = RTK_PCI_LOMEM; 235 csc->sc_bar_val = adr | CARDBUS_MAPREG_TYPE_MEM; 236 } 237 #endif 238 else { 239 printf("%s: unable to map deviceregisters\n", 240 sc->sc_dev.dv_xname); 241 return; 242 } 243 /* 244 * Handle power management nonsense and initialize the 245 * configuration registers. 246 */ 247 rtk_cardbus_setup(csc); 248 sc->rtk_type = t->rtk_type; 249 250 rtk_attach(sc); 251 252 /* 253 * Power down the socket. 254 */ 255 Cardbus_function_disable(csc->sc_ct); 256 } 257 258 int 259 rtk_cardbus_detach(self, flags) 260 struct device *self; 261 int flags; 262 { 263 struct rtk_cardbus_softc *csc = (void *) self; 264 struct rtk_softc *sc = &csc->sc_rtk; 265 struct cardbus_devfunc *ct = csc->sc_ct; 266 int rv; 267 268 #ifdef DIAGNOSTIC 269 if (ct == NULL) 270 panic("%s: data structure lacks\n", sc->sc_dev.dv_xname); 271 #endif 272 rv = rtk_detach(sc); 273 if (rv) 274 return (rv); 275 /* 276 * Unhook the interrut handler. 277 */ 278 if (csc->sc_ih != NULL) 279 cardbus_intr_disestablish(ct->ct_cc, ct->ct_cf, csc->sc_ih); 280 281 /* 282 * Release bus space and close window. 283 */ 284 if (csc->sc_bar_reg != 0) 285 Cardbus_mapreg_unmap(ct, csc->sc_bar_reg, 286 sc->rtk_btag, sc->rtk_bhandle, csc->sc_mapsize); 287 288 return (0); 289 } 290 291 void 292 rtk_cardbus_setup(csc) 293 struct rtk_cardbus_softc *csc; 294 { 295 struct rtk_softc *sc = &csc->sc_rtk; 296 cardbus_devfunc_t ct = csc->sc_ct; 297 cardbus_chipset_tag_t cc = ct->ct_cc; 298 cardbus_function_tag_t cf = ct->ct_cf; 299 pcireg_t reg,command; 300 int pmreg; 301 302 /* 303 * Handle power management nonsense. 304 */ 305 if (cardbus_get_capability(cc, cf, csc->sc_tag, 306 PCI_CAP_PWRMGMT, &pmreg, 0)) { 307 command = cardbus_conf_read(cc, cf, csc->sc_tag, pmreg + 4); 308 if (command & RTK_PSTATE_MASK) { 309 pcireg_t iobase, membase, irq; 310 311 /* Save important PCI config data. */ 312 iobase = cardbus_conf_read(cc, cf, csc->sc_tag, 313 RTK_PCI_LOIO); 314 membase = cardbus_conf_read(cc, cf,csc->sc_tag, 315 RTK_PCI_LOMEM); 316 irq = cardbus_conf_read(cc, cf,csc->sc_tag, 317 PCI_PRODUCT_DELTA_8139); 318 319 /* Reset the power state. */ 320 printf("%s: chip is is in D%d power mode " 321 "-- setting to D0\n", sc->sc_dev.dv_xname, 322 command & RTK_PSTATE_MASK); 323 command &= 0xFFFFFFFC; 324 cardbus_conf_write(cc, cf, csc->sc_tag, 325 pmreg + 4, command); 326 327 /* Restore PCI config data. */ 328 cardbus_conf_write(cc, cf, csc->sc_tag, 329 RTK_PCI_LOIO, iobase); 330 cardbus_conf_write(cc, cf, csc->sc_tag, 331 RTK_PCI_LOMEM, membase); 332 cardbus_conf_write(cc, cf, csc->sc_tag, 333 PCI_PRODUCT_DELTA_8139, irq); 334 } 335 } 336 337 /* Make sure the right access type is on the CardBus bridge. */ 338 (*ct->ct_cf->cardbus_ctrl)(cc, csc->sc_cben); 339 (*ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_BM_ENABLE); 340 341 /* Program the BAR */ 342 cardbus_conf_write(cc, cf, csc->sc_tag, 343 csc->sc_bar_reg, csc->sc_bar_val); 344 345 /* Enable the appropriate bits in the CARDBUS CSR. */ 346 reg = cardbus_conf_read(cc, cf, csc->sc_tag, 347 CARDBUS_COMMAND_STATUS_REG); 348 reg &= ~(CARDBUS_COMMAND_IO_ENABLE|CARDBUS_COMMAND_MEM_ENABLE); 349 reg |= csc->sc_csr; 350 cardbus_conf_write(cc, cf, csc->sc_tag, 351 CARDBUS_COMMAND_STATUS_REG, reg); 352 353 /* 354 * Make sure the latency timer is set to some reasonable 355 * value. 356 */ 357 reg = cardbus_conf_read(cc, cf, csc->sc_tag, CARDBUS_BHLC_REG); 358 if (CARDBUS_LATTIMER(reg) < 0x20) { 359 reg &= ~(CARDBUS_LATTIMER_MASK << CARDBUS_LATTIMER_SHIFT); 360 reg |= (0x20 << CARDBUS_LATTIMER_SHIFT); 361 cardbus_conf_write(cc, cf, csc->sc_tag, CARDBUS_BHLC_REG, reg); 362 } 363 } 364 365 int 366 rtk_cardbus_enable(sc) 367 struct rtk_softc *sc; 368 { 369 struct rtk_cardbus_softc *csc = (void *) sc; 370 cardbus_devfunc_t ct = csc->sc_ct; 371 cardbus_chipset_tag_t cc = ct->ct_cc; 372 cardbus_function_tag_t cf = ct->ct_cf; 373 374 /* 375 * Power on the socket. 376 */ 377 Cardbus_function_enable(ct); 378 379 /* 380 * Set up the PCI configuration registers. 381 */ 382 rtk_cardbus_setup(csc); 383 384 /* 385 * Map and establish the interrupt. 386 */ 387 csc->sc_ih = cardbus_intr_establish(cc, cf, csc->sc_intrline, 388 IPL_NET, rtk_intr, sc); 389 if (csc->sc_ih == NULL) { 390 printf("%s: unable to establish interrupt at %d\n", 391 sc->sc_dev.dv_xname, csc->sc_intrline); 392 Cardbus_function_disable(csc->sc_ct); 393 return (1); 394 } 395 printf("%s: interrupting at %d\n", sc->sc_dev.dv_xname, 396 csc->sc_intrline); 397 return (0); 398 } 399 400 void 401 rtk_cardbus_disable(sc) 402 struct rtk_softc *sc; 403 { 404 struct rtk_cardbus_softc *csc = (void *) sc; 405 cardbus_devfunc_t ct = csc->sc_ct; 406 cardbus_chipset_tag_t cc = ct->ct_cc; 407 cardbus_function_tag_t cf = ct->ct_cf; 408 409 /* Unhook the interrupt handler. */ 410 cardbus_intr_disestablish(cc, cf, csc->sc_ih); 411 412 /* Power down the socket. */ 413 Cardbus_function_disable(ct); 414 } 415 416 void 417 rtk_cardbus_power(sc, why) 418 struct rtk_softc *sc; 419 int why; 420 { 421 struct rtk_cardbus_softc *csc = (void *) sc; 422 423 if (why == PWR_RESUME) { 424 /* 425 * Give the PCI configuration registers a kick 426 * in the head. 427 */ 428 #ifdef DIAGNOSTIC 429 if (RTK_IS_ENABLED(sc) == 0) 430 panic("rtk_cardbus_power"); 431 #endif 432 rtk_cardbus_setup(csc); 433 } 434 } 435
Indexes created Fri Oct 03 02:09:57 GMT 2025