if_rtk_cardbus.c revision 1.4
1 /* $NetBSD: if_rtk_cardbus.c,v 1.4 2001/05/15 04:26:23 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 "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_COREGA, CARDBUS_PRODUCT_COREGA_CB_TXD, 109 "Corega FEther CB-TXD 10/100BaseTX", RTK_8139 }, 110 { 0, 0, NULL, 0 } 111 }; 112 113 static int rtk_cardbus_match __P((struct device *, struct cfdata *, void *)); 114 static void rtk_cardbus_attach __P((struct device *, struct device *, void *)); 115 static int rtk_cardbus_detach __P((struct device *, int)); 116 117 struct rtk_cardbus_softc { 118 struct rtk_softc sc_rtk; /* real rtk softc */ 119 120 /* CardBus-specific goo. */ 121 void *sc_ih; 122 cardbus_devfunc_t sc_ct; 123 cardbustag_t sc_tag; 124 int sc_csr; 125 int sc_cben; 126 int sc_bar_reg; 127 pcireg_t sc_bar_val; 128 bus_size_t sc_mapsize; 129 int sc_intrline; 130 }; 131 132 struct cfattach rtk_cardbus_ca = { 133 sizeof(struct rtk_cardbus_softc), 134 rtk_cardbus_match, rtk_cardbus_attach, 135 rtk_cardbus_detach, rtk_activate, 136 }; 137 138 const struct rtk_type *rtk_cardbus_lookup 139 __P((const struct cardbus_attach_args *)); 140 141 void rtk_cardbus_setup __P((struct rtk_cardbus_softc *)); 142 143 int rtk_cardbus_enable __P((struct rtk_softc *)); 144 void rtk_cardbus_disable __P((struct rtk_softc *)); 145 void rtk_cardbus_power __P((struct rtk_softc *, int)); 146 const struct rtk_type * 147 rtk_cardbus_lookup(ca) 148 const struct cardbus_attach_args *ca; 149 { 150 const struct rtk_type *t; 151 152 for (t = rtk_cardbus_devs; t->rtk_name != NULL; t++){ 153 if (CARDBUS_VENDOR(ca->ca_id) == t->rtk_vid && 154 CARDBUS_PRODUCT(ca->ca_id) == t->rtk_did) { 155 return (t); 156 } 157 } 158 return (NULL); 159 } 160 161 int 162 rtk_cardbus_match(parent, match, aux) 163 struct device *parent; 164 struct cfdata *match; 165 void *aux; 166 { 167 struct cardbus_attach_args *ca = aux; 168 169 if (rtk_cardbus_lookup(ca) != NULL) 170 return (1); 171 172 return (0); 173 } 174 175 176 void 177 rtk_cardbus_attach(parent, self, aux) 178 struct device *parent, *self; 179 void *aux; 180 { 181 struct rtk_cardbus_softc *csc = (struct rtk_cardbus_softc *)self; 182 struct rtk_softc *sc = &csc->sc_rtk; 183 struct cardbus_attach_args *ca = aux; 184 cardbus_devfunc_t ct = ca->ca_ct; 185 const struct rtk_type *t; 186 bus_addr_t adr; 187 188 sc->sc_dmat = ca->ca_dmat; 189 csc->sc_ct = ct; 190 csc->sc_tag = ca->ca_tag; 191 csc->sc_intrline = ca->ca_intrline; 192 193 t = rtk_cardbus_lookup(ca); 194 if (t == NULL) { 195 printf("\n"); 196 panic("rtk_cardbus_attach: impossible"); 197 } 198 printf(": %s\n", t->rtk_name); 199 200 /* 201 * Power management hooks. 202 */ 203 sc->sc_enable = rtk_cardbus_enable; 204 sc->sc_disable = rtk_cardbus_disable; 205 sc->sc_power = rtk_cardbus_power; 206 207 /* 208 * Map control/status registers. 209 */ 210 csc->sc_csr = CARDBUS_COMMAND_MASTER_ENABLE; 211 #ifdef RTK_USEIOSPACE 212 if (Cardbus_mapreg_map(ct, RTK_PCI_LOIO, CARDBUS_MAPREG_TYPE_IO, 0, 213 &sc->rtk_btag, &sc->rtk_bhandle, &adr, &csc->sc_mapsize) == 0) { 214 #if rbus 215 #else 216 (*ct->ct_cf->cardbus_io_open)(cc, 0, adr, adr+csc->sc_mapsize); 217 #endif 218 csc->sc_cben = CARDBUS_IO_ENABLE; 219 csc->sc_csr |= CARDBUS_COMMAND_IO_ENABLE; 220 csc->sc_bar_reg = RTK_PCI_LOIO; 221 csc->sc_bar_val = adr | CARDBUS_MAPREG_TYPE_IO; 222 } 223 #else 224 if (Cardbus_mapreg_map(ct, RTK_PCI_LOMEM, CARDBUS_MAPREG_TYPE_MEM, 0, 225 &sc->rtk_btag, &sc->rtk_bhandle, &adr, &csc->sc_mapsize) == 0) { 226 #if rbus 227 #else 228 (*ct->ct_cf->cardbus_mem_open)(cc, 0, adr, adr+csc->sc_mapsize); 229 #endif 230 csc->sc_cben = CARDBUS_MEM_ENABLE; 231 csc->sc_csr |= CARDBUS_COMMAND_MEM_ENABLE; 232 csc->sc_bar_reg = RTK_PCI_LOMEM; 233 csc->sc_bar_val = adr | CARDBUS_MAPREG_TYPE_MEM; 234 } 235 #endif 236 else { 237 printf("%s: unable to map deviceregisters\n", 238 sc->sc_dev.dv_xname); 239 return; 240 } 241 /* 242 * Handle power management nonsense and initialize the 243 * configuration registers. 244 */ 245 rtk_cardbus_setup(csc); 246 sc->rtk_type = t->rtk_type; 247 248 rtk_attach(sc); 249 250 /* 251 * Power down the socket. 252 */ 253 Cardbus_function_disable(csc->sc_ct); 254 } 255 256 int 257 rtk_cardbus_detach(self, flags) 258 struct device *self; 259 int flags; 260 { 261 struct rtk_cardbus_softc *csc = (void *) self; 262 struct rtk_softc *sc = &csc->sc_rtk; 263 struct cardbus_devfunc *ct = csc->sc_ct; 264 int rv; 265 266 #ifdef DIAGNOSTIC 267 if (ct == NULL) 268 panic("%s: data structure lacks\n", sc->sc_dev.dv_xname); 269 #endif 270 rv = rtk_detach(sc); 271 if (rv) 272 return (rv); 273 /* 274 * Unhook the interrut handler. 275 */ 276 if (csc->sc_ih != NULL) 277 cardbus_intr_disestablish(ct->ct_cc, ct->ct_cf, csc->sc_ih); 278 279 /* 280 * Release bus space and close window. 281 */ 282 if (csc->sc_bar_reg != 0) 283 Cardbus_mapreg_unmap(ct, csc->sc_bar_reg, 284 sc->rtk_btag, sc->rtk_bhandle, csc->sc_mapsize); 285 286 return (0); 287 } 288 289 void 290 rtk_cardbus_setup(csc) 291 struct rtk_cardbus_softc *csc; 292 { 293 struct rtk_softc *sc = &csc->sc_rtk; 294 cardbus_devfunc_t ct = csc->sc_ct; 295 cardbus_chipset_tag_t cc = ct->ct_cc; 296 cardbus_function_tag_t cf = ct->ct_cf; 297 pcireg_t reg,command; 298 int pmreg; 299 300 /* 301 * Handle power management nonsense. 302 */ 303 if (cardbus_get_capability(cc, cf, csc->sc_tag, 304 PCI_CAP_PWRMGMT, &pmreg, 0)) { 305 command = cardbus_conf_read(cc, cf, csc->sc_tag, pmreg + 4); 306 if (command & RTK_PSTATE_MASK) { 307 pcireg_t iobase, membase, irq; 308 309 /* Save important PCI config data. */ 310 iobase = cardbus_conf_read(cc, cf, csc->sc_tag, 311 RTK_PCI_LOIO); 312 membase = cardbus_conf_read(cc, cf,csc->sc_tag, 313 RTK_PCI_LOMEM); 314 irq = cardbus_conf_read(cc, cf,csc->sc_tag, 315 PCI_PRODUCT_DELTA_8139); 316 317 /* Reset the power state. */ 318 printf("%s: chip is is in D%d power mode " 319 "-- setting to D0\n", sc->sc_dev.dv_xname, 320 command & RTK_PSTATE_MASK); 321 command &= 0xFFFFFFFC; 322 cardbus_conf_write(cc, cf, csc->sc_tag, 323 pmreg + 4, command); 324 325 /* Restore PCI config data. */ 326 cardbus_conf_write(cc, cf, csc->sc_tag, 327 RTK_PCI_LOIO, iobase); 328 cardbus_conf_write(cc, cf, csc->sc_tag, 329 RTK_PCI_LOMEM, membase); 330 cardbus_conf_write(cc, cf, csc->sc_tag, 331 PCI_PRODUCT_DELTA_8139, irq); 332 } 333 } 334 335 /* Make sure the right access type is on the CardBus bridge. */ 336 (*ct->ct_cf->cardbus_ctrl)(cc, csc->sc_cben); 337 (*ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_BM_ENABLE); 338 339 /* Program the BAR */ 340 cardbus_conf_write(cc, cf, csc->sc_tag, 341 csc->sc_bar_reg, csc->sc_bar_val); 342 343 /* Enable the appropriate bits in the CARDBUS CSR. */ 344 reg = cardbus_conf_read(cc, cf, csc->sc_tag, 345 CARDBUS_COMMAND_STATUS_REG); 346 reg &= ~(CARDBUS_COMMAND_IO_ENABLE|CARDBUS_COMMAND_MEM_ENABLE); 347 reg |= csc->sc_csr; 348 cardbus_conf_write(cc, cf, csc->sc_tag, 349 CARDBUS_COMMAND_STATUS_REG, reg); 350 351 /* 352 * Make sure the latency timer is set to some reasonable 353 * value. 354 */ 355 reg = cardbus_conf_read(cc, cf, csc->sc_tag, CARDBUS_BHLC_REG); 356 if (CARDBUS_LATTIMER(reg) < 0x20) { 357 reg &= ~(CARDBUS_LATTIMER_MASK << CARDBUS_LATTIMER_SHIFT); 358 reg |= (0x20 << CARDBUS_LATTIMER_SHIFT); 359 cardbus_conf_write(cc, cf, csc->sc_tag, CARDBUS_BHLC_REG, reg); 360 } 361 } 362 363 int 364 rtk_cardbus_enable(sc) 365 struct rtk_softc *sc; 366 { 367 struct rtk_cardbus_softc *csc = (void *) sc; 368 cardbus_devfunc_t ct = csc->sc_ct; 369 cardbus_chipset_tag_t cc = ct->ct_cc; 370 cardbus_function_tag_t cf = ct->ct_cf; 371 372 /* 373 * Power on the socket. 374 */ 375 Cardbus_function_enable(ct); 376 377 /* 378 * Set up the PCI configuration registers. 379 */ 380 rtk_cardbus_setup(csc); 381 382 /* 383 * Map and establish the interrupt. 384 */ 385 csc->sc_ih = cardbus_intr_establish(cc, cf, csc->sc_intrline, 386 IPL_NET, rtk_intr, sc); 387 if (csc->sc_ih == NULL) { 388 printf("%s: unable to establish interrupt at %d\n", 389 sc->sc_dev.dv_xname, csc->sc_intrline); 390 Cardbus_function_disable(csc->sc_ct); 391 return (1); 392 } 393 printf("%s: interrupting at %d\n", sc->sc_dev.dv_xname, 394 csc->sc_intrline); 395 return (0); 396 } 397 398 void 399 rtk_cardbus_disable(sc) 400 struct rtk_softc *sc; 401 { 402 struct rtk_cardbus_softc *csc = (void *) sc; 403 cardbus_devfunc_t ct = csc->sc_ct; 404 cardbus_chipset_tag_t cc = ct->ct_cc; 405 cardbus_function_tag_t cf = ct->ct_cf; 406 407 /* Unhook the interrupt handler. */ 408 cardbus_intr_disestablish(cc, cf, csc->sc_ih); 409 410 /* Power down the socket. */ 411 Cardbus_function_disable(ct); 412 } 413 414 void 415 rtk_cardbus_power(sc, why) 416 struct rtk_softc *sc; 417 int why; 418 { 419 struct rtk_cardbus_softc *csc = (void *) sc; 420 421 if (why == PWR_RESUME) { 422 /* 423 * Give the PCI configuration registers a kick 424 * in the head. 425 */ 426 #ifdef DIAGNOSTIC 427 if (RTK_IS_ENABLED(sc) == 0) 428 panic("rtk_cardbus_power"); 429 #endif 430 rtk_cardbus_setup(csc); 431 } 432 } 433
Indexes created Fri Oct 03 02:09:57 GMT 2025