if_rtk_cardbus.c revision 1.3
1 /* $NetBSD: if_rtk_cardbus.c,v 1.3 2000/05/19 13:42:30 tsutsui 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 { 0, 0, NULL, 0 } 109 }; 110 111 static int rtk_cardbus_match __P((struct device *, struct cfdata *, void *)); 112 static void rtk_cardbus_attach __P((struct device *, struct device *, void *)); 113 static int rtk_cardbus_detach __P((struct device *, int)); 114 115 struct rtk_cardbus_softc { 116 struct rtk_softc sc_rtk; /* real rtk softc */ 117 118 /* CardBus-specific goo. */ 119 void *sc_ih; 120 cardbus_devfunc_t sc_ct; 121 cardbustag_t sc_tag; 122 int sc_csr; 123 int sc_cben; 124 int sc_bar_reg; 125 pcireg_t sc_bar_val; 126 bus_size_t sc_mapsize; 127 int sc_intrline; 128 }; 129 130 struct cfattach rtk_cardbus_ca = { 131 sizeof(struct rtk_cardbus_softc), 132 rtk_cardbus_match, rtk_cardbus_attach, 133 rtk_cardbus_detach, rtk_activate, 134 }; 135 136 const struct rtk_type *rtk_cardbus_lookup 137 __P((const struct cardbus_attach_args *)); 138 139 void rtk_cardbus_setup __P((struct rtk_cardbus_softc *)); 140 141 int rtk_cardbus_enable __P((struct rtk_softc *)); 142 void rtk_cardbus_disable __P((struct rtk_softc *)); 143 void rtk_cardbus_power __P((struct rtk_softc *, int)); 144 const struct rtk_type * 145 rtk_cardbus_lookup(ca) 146 const struct cardbus_attach_args *ca; 147 { 148 const struct rtk_type *t; 149 150 for (t = rtk_cardbus_devs; t->rtk_name != NULL; t++){ 151 if (CARDBUS_VENDOR(ca->ca_id) == t->rtk_vid && 152 CARDBUS_PRODUCT(ca->ca_id) == t->rtk_did) { 153 return (t); 154 } 155 } 156 return (NULL); 157 } 158 159 int 160 rtk_cardbus_match(parent, match, aux) 161 struct device *parent; 162 struct cfdata *match; 163 void *aux; 164 { 165 struct cardbus_attach_args *ca = aux; 166 167 if (rtk_cardbus_lookup(ca) != NULL) 168 return (1); 169 170 return (0); 171 } 172 173 174 void 175 rtk_cardbus_attach(parent, self, aux) 176 struct device *parent, *self; 177 void *aux; 178 { 179 struct rtk_cardbus_softc *csc = (struct rtk_cardbus_softc *)self; 180 struct rtk_softc *sc = &csc->sc_rtk; 181 struct cardbus_attach_args *ca = aux; 182 cardbus_devfunc_t ct = ca->ca_ct; 183 const struct rtk_type *t; 184 bus_addr_t adr; 185 186 sc->sc_dmat = ca->ca_dmat; 187 csc->sc_ct = ct; 188 csc->sc_tag = ca->ca_tag; 189 csc->sc_intrline = ca->ca_intrline; 190 191 t = rtk_cardbus_lookup(ca); 192 if (t == NULL) { 193 printf("\n"); 194 panic("rtk_cardbus_attach: impossible"); 195 } 196 printf(": %s\n", t->rtk_name); 197 198 /* 199 * Power management hooks. 200 */ 201 sc->sc_enable = rtk_cardbus_enable; 202 sc->sc_disable = rtk_cardbus_disable; 203 sc->sc_power = rtk_cardbus_power; 204 205 /* 206 * Map control/status registers. 207 */ 208 csc->sc_csr = CARDBUS_COMMAND_MASTER_ENABLE; 209 #ifdef RTK_USEIOSPACE 210 if (Cardbus_mapreg_map(ct, RTK_PCI_LOIO, CARDBUS_MAPREG_TYPE_IO, 0, 211 &sc->rtk_btag, &sc->rtk_bhandle, &adr, &csc->sc_mapsize) == 0) { 212 #if rbus 213 #else 214 (*ct->ct_cf->cardbus_io_open)(cc, 0, adr, adr+csc->sc_mapsize); 215 #endif 216 csc->sc_cben = CARDBUS_IO_ENABLE; 217 csc->sc_csr |= CARDBUS_COMMAND_IO_ENABLE; 218 csc->sc_bar_reg = RTK_PCI_LOIO; 219 csc->sc_bar_val = adr | CARDBUS_MAPREG_TYPE_IO; 220 } 221 #else 222 if (Cardbus_mapreg_map(ct, RTK_PCI_LOMEM, CARDBUS_MAPREG_TYPE_MEM, 0, 223 &sc->rtk_btag, &sc->rtk_bhandle, &adr, &csc->sc_mapsize) == 0) { 224 #if rbus 225 #else 226 (*ct->ct_cf->cardbus_mem_open)(cc, 0, adr, adr+csc->sc_mapsize); 227 #endif 228 csc->sc_cben = CARDBUS_MEM_ENABLE; 229 csc->sc_csr |= CARDBUS_COMMAND_MEM_ENABLE; 230 csc->sc_bar_reg = RTK_PCI_LOMEM; 231 csc->sc_bar_val = adr | CARDBUS_MAPREG_TYPE_MEM; 232 } 233 #endif 234 else { 235 printf("%s: unable to map deviceregisters\n", 236 sc->sc_dev.dv_xname); 237 return; 238 } 239 /* 240 * Handle power management nonsense and initialize the 241 * configuration registers. 242 */ 243 rtk_cardbus_setup(csc); 244 sc->rtk_type = t->rtk_type; 245 246 rtk_attach(sc); 247 248 /* 249 * Power down the socket. 250 */ 251 Cardbus_function_disable(csc->sc_ct); 252 } 253 254 int 255 rtk_cardbus_detach(self, flags) 256 struct device *self; 257 int flags; 258 { 259 struct rtk_cardbus_softc *csc = (void *) self; 260 struct rtk_softc *sc = &csc->sc_rtk; 261 struct cardbus_devfunc *ct = csc->sc_ct; 262 int rv; 263 264 #ifdef DIAGNOSTIC 265 if (ct == NULL) 266 panic("%s: data structure lacks\n", sc->sc_dev.dv_xname); 267 #endif 268 rv = rtk_detach(sc); 269 if (rv) 270 return (rv); 271 /* 272 * Unhook the interrut handler. 273 */ 274 if (csc->sc_ih != NULL) 275 cardbus_intr_disestablish(ct->ct_cc, ct->ct_cf, csc->sc_ih); 276 277 /* 278 * Release bus space and close window. 279 */ 280 if (csc->sc_bar_reg != 0) 281 Cardbus_mapreg_unmap(ct, csc->sc_bar_reg, 282 sc->rtk_btag, sc->rtk_bhandle, csc->sc_mapsize); 283 284 return (0); 285 } 286 287 void 288 rtk_cardbus_setup(csc) 289 struct rtk_cardbus_softc *csc; 290 { 291 struct rtk_softc *sc = &csc->sc_rtk; 292 cardbus_devfunc_t ct = csc->sc_ct; 293 cardbus_chipset_tag_t cc = ct->ct_cc; 294 cardbus_function_tag_t cf = ct->ct_cf; 295 pcireg_t reg,command; 296 int pmreg; 297 298 /* 299 * Handle power management nonsense. 300 */ 301 if (cardbus_get_capability(cc, cf, csc->sc_tag, 302 PCI_CAP_PWRMGMT, &pmreg, 0)) { 303 command = cardbus_conf_read(cc, cf, csc->sc_tag, pmreg + 4); 304 if (command & RTK_PSTATE_MASK) { 305 pcireg_t iobase, membase, irq; 306 307 /* Save important PCI config data. */ 308 iobase = cardbus_conf_read(cc, cf, csc->sc_tag, 309 RTK_PCI_LOIO); 310 membase = cardbus_conf_read(cc, cf,csc->sc_tag, 311 RTK_PCI_LOMEM); 312 irq = cardbus_conf_read(cc, cf,csc->sc_tag, 313 PCI_PRODUCT_DELTA_8139); 314 315 /* Reset the power state. */ 316 printf("%s: chip is is in D%d power mode " 317 "-- setting to D0\n", sc->sc_dev.dv_xname, 318 command & RTK_PSTATE_MASK); 319 command &= 0xFFFFFFFC; 320 cardbus_conf_write(cc, cf, csc->sc_tag, 321 pmreg + 4, command); 322 323 /* Restore PCI config data. */ 324 cardbus_conf_write(cc, cf, csc->sc_tag, 325 RTK_PCI_LOIO, iobase); 326 cardbus_conf_write(cc, cf, csc->sc_tag, 327 RTK_PCI_LOMEM, membase); 328 cardbus_conf_write(cc, cf, csc->sc_tag, 329 PCI_PRODUCT_DELTA_8139, irq); 330 } 331 } 332 333 /* Make sure the right access type is on the CardBus bridge. */ 334 (*ct->ct_cf->cardbus_ctrl)(cc, csc->sc_cben); 335 (*ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_BM_ENABLE); 336 337 /* Program the BAR */ 338 cardbus_conf_write(cc, cf, csc->sc_tag, 339 csc->sc_bar_reg, csc->sc_bar_val); 340 341 /* Enable the appropriate bits in the CARDBUS CSR. */ 342 reg = cardbus_conf_read(cc, cf, csc->sc_tag, 343 CARDBUS_COMMAND_STATUS_REG); 344 reg &= ~(CARDBUS_COMMAND_IO_ENABLE|CARDBUS_COMMAND_MEM_ENABLE); 345 reg |= csc->sc_csr; 346 cardbus_conf_write(cc, cf, csc->sc_tag, 347 CARDBUS_COMMAND_STATUS_REG, reg); 348 349 /* 350 * Make sure the latency timer is set to some reasonable 351 * value. 352 */ 353 reg = cardbus_conf_read(cc, cf, csc->sc_tag, CARDBUS_BHLC_REG); 354 if (CARDBUS_LATTIMER(reg) < 0x20) { 355 reg &= ~(CARDBUS_LATTIMER_MASK << CARDBUS_LATTIMER_SHIFT); 356 reg |= (0x20 << CARDBUS_LATTIMER_SHIFT); 357 cardbus_conf_write(cc, cf, csc->sc_tag, CARDBUS_BHLC_REG, reg); 358 } 359 } 360 361 int 362 rtk_cardbus_enable(sc) 363 struct rtk_softc *sc; 364 { 365 struct rtk_cardbus_softc *csc = (void *) sc; 366 cardbus_devfunc_t ct = csc->sc_ct; 367 cardbus_chipset_tag_t cc = ct->ct_cc; 368 cardbus_function_tag_t cf = ct->ct_cf; 369 370 /* 371 * Power on the socket. 372 */ 373 Cardbus_function_enable(ct); 374 375 /* 376 * Set up the PCI configuration registers. 377 */ 378 rtk_cardbus_setup(csc); 379 380 /* 381 * Map and establish the interrupt. 382 */ 383 csc->sc_ih = cardbus_intr_establish(cc, cf, csc->sc_intrline, 384 IPL_NET, rtk_intr, sc); 385 if (csc->sc_ih == NULL) { 386 printf("%s: unable to establish interrupt at %d\n", 387 sc->sc_dev.dv_xname, csc->sc_intrline); 388 Cardbus_function_disable(csc->sc_ct); 389 return (1); 390 } 391 printf("%s: interrupting at %d\n", sc->sc_dev.dv_xname, 392 csc->sc_intrline); 393 return (0); 394 } 395 396 void 397 rtk_cardbus_disable(sc) 398 struct rtk_softc *sc; 399 { 400 struct rtk_cardbus_softc *csc = (void *) sc; 401 cardbus_devfunc_t ct = csc->sc_ct; 402 cardbus_chipset_tag_t cc = ct->ct_cc; 403 cardbus_function_tag_t cf = ct->ct_cf; 404 405 /* Unhook the interrupt handler. */ 406 cardbus_intr_disestablish(cc, cf, csc->sc_ih); 407 408 /* Power down the socket. */ 409 Cardbus_function_disable(ct); 410 } 411 412 void 413 rtk_cardbus_power(sc, why) 414 struct rtk_softc *sc; 415 int why; 416 { 417 struct rtk_cardbus_softc *csc = (void *) sc; 418 419 if (why == PWR_RESUME) { 420 /* 421 * Give the PCI configuration registers a kick 422 * in the head. 423 */ 424 #ifdef DIAGNOSTIC 425 if (RTK_IS_ENABLED(sc) == 0) 426 panic("rtk_cardbus_power"); 427 #endif 428 rtk_cardbus_setup(csc); 429 } 430 } 431
Indexes created Fri Oct 03 02:09:57 GMT 2025