if_rtk_cardbus.c revision 1.36
1 /* $NetBSD: if_rtk_cardbus.c,v 1.36 2008/04/25 11:27:19 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 <sys/cdefs.h> 39 __KERNEL_RCSID(0, "$NetBSD: if_rtk_cardbus.c,v 1.36 2008/04/25 11:27:19 tsutsui Exp $"); 40 41 #include "opt_inet.h" 42 #include "bpfilter.h" 43 #include "rnd.h" 44 45 #include <sys/param.h> 46 #include <sys/systm.h> 47 #include <sys/callout.h> 48 #include <sys/device.h> 49 #include <sys/sockio.h> 50 #include <sys/mbuf.h> 51 #include <sys/malloc.h> 52 #include <sys/kernel.h> 53 #include <sys/socket.h> 54 55 #include <net/if.h> 56 #include <net/if_arp.h> 57 #include <net/if_ether.h> 58 #include <net/if_dl.h> 59 #include <net/if_media.h> 60 #ifdef INET 61 #include <netinet/in.h> 62 #include <netinet/if_inarp.h> 63 #endif 64 65 #if NBPFILTER > 0 66 #include <net/bpf.h> 67 #endif 68 #if NRND > 0 69 #include <sys/rnd.h> 70 #endif 71 72 #include <sys/bus.h> 73 74 #include <dev/pci/pcireg.h> 75 #include <dev/pci/pcivar.h> 76 #include <dev/pci/pcidevs.h> 77 78 #include <dev/cardbus/cardbusvar.h> 79 #include <dev/pci/pcidevs.h> 80 81 #include <dev/mii/mii.h> 82 #include <dev/mii/miivar.h> 83 84 /* 85 * Default to using PIO access for this driver. On SMP systems, 86 * there appear to be problems with memory mapped mode: it looks like 87 * doing too many memory mapped access back to back in rapid succession 88 * can hang the bus. I'm inclined to blame this on crummy design/construction 89 * on the part of Realtek. Memory mapped mode does appear to work on 90 * uniprocessor systems though. 91 */ 92 #define RTK_USEIOSPACE 93 94 #include <dev/ic/rtl81x9reg.h> 95 #include <dev/ic/rtl81x9var.h> 96 97 /* 98 * Various supported device vendors/types and their names. 99 */ 100 static const struct rtk_type rtk_cardbus_devs[] = { 101 { PCI_VENDOR_ACCTON, PCI_PRODUCT_ACCTON_MPX5030, 102 RTK_8139, "Accton MPX 5030/5038 10/100BaseTX" }, 103 { PCI_VENDOR_DLINK, PCI_PRODUCT_DLINK_DFE690TXD, 104 RTK_8139, "D-Link DFE-690TXD 10/100BaseTX" }, 105 { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8138, 106 RTK_8139, "Realtek 8138 10/100BaseTX" }, 107 { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8139, 108 RTK_8139, "Realtek 8139 10/100BaseTX" }, 109 { PCI_VENDOR_COREGA, PCI_PRODUCT_COREGA_CB_TXD, 110 RTK_8139, "Corega FEther CB-TXD 10/100BaseTX" }, 111 { PCI_VENDOR_COREGA, PCI_PRODUCT_COREGA_2CB_TXD, 112 RTK_8139, "Corega FEther II CB-TXD 10/100BaseTX" }, 113 { PCI_VENDOR_PLANEX, PCI_PRODUCT_PLANEX_FNW_3603_TX, 114 RTK_8139, "Planex FNW-3603 10/100BaseTX" }, 115 { PCI_VENDOR_PLANEX, PCI_PRODUCT_PLANEX_FNW_3800_TX, 116 RTK_8139, "Planex 10/100BaseTX FNW-3800-TX" }, 117 { PCI_VENDOR_ABOCOM, PCI_PRODUCT_ABOCOM_FE2000VX, 118 RTK_8139, "AboCom FE2000VX 10/100BaseTX" }, 119 120 { 0, 0, 0, NULL } 121 }; 122 123 static int rtk_cardbus_match(device_t, cfdata_t, void *); 124 static void rtk_cardbus_attach(device_t, device_t, void *); 125 static int rtk_cardbus_detach(device_t, int); 126 127 struct rtk_cardbus_softc { 128 struct rtk_softc sc_rtk; /* real rtk softc */ 129 130 /* CardBus-specific goo. */ 131 void *sc_ih; 132 cardbus_devfunc_t sc_ct; 133 cardbustag_t sc_tag; 134 int sc_csr; 135 int sc_cben; 136 int sc_bar_reg; 137 pcireg_t sc_bar_val; 138 bus_size_t sc_mapsize; 139 int sc_intrline; 140 }; 141 142 CFATTACH_DECL_NEW(rtk_cardbus, sizeof(struct rtk_cardbus_softc), 143 rtk_cardbus_match, rtk_cardbus_attach, rtk_cardbus_detach, rtk_activate); 144 145 const struct rtk_type *rtk_cardbus_lookup(const struct cardbus_attach_args *); 146 147 void rtk_cardbus_setup(struct rtk_cardbus_softc *); 148 149 int rtk_cardbus_enable(struct rtk_softc *); 150 void rtk_cardbus_disable(struct rtk_softc *); 151 void rtk_cardbus_power(struct rtk_softc *, int); 152 153 const struct rtk_type * 154 rtk_cardbus_lookup(const struct cardbus_attach_args *ca) 155 { 156 const struct rtk_type *t; 157 158 for (t = rtk_cardbus_devs; t->rtk_name != NULL; t++){ 159 if (CARDBUS_VENDOR(ca->ca_id) == t->rtk_vid && 160 CARDBUS_PRODUCT(ca->ca_id) == t->rtk_did) { 161 return t; 162 } 163 } 164 return NULL; 165 } 166 167 int 168 rtk_cardbus_match(device_t parent, cfdata_t cf, void *aux) 169 { 170 struct cardbus_attach_args *ca = aux; 171 172 if (rtk_cardbus_lookup(ca) != NULL) 173 return 1; 174 175 return 0; 176 } 177 178 179 void 180 rtk_cardbus_attach(device_t parent, device_t self, void *aux) 181 { 182 struct rtk_cardbus_softc *csc = device_private(self); 183 struct rtk_softc *sc = &csc->sc_rtk; 184 struct cardbus_attach_args *ca = aux; 185 cardbus_devfunc_t ct = ca->ca_ct; 186 const struct rtk_type *t; 187 bus_addr_t adr; 188 189 sc->sc_dev = self; 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 aprint_error("\n"); 198 panic("%s: impossible", __func__); 199 } 200 aprint_normal(": %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; 207 208 /* 209 * Map control/status registers. 210 */ 211 csc->sc_csr = CARDBUS_COMMAND_MASTER_ENABLE; 212 #ifdef RTK_USEIOSPACE 213 if (Cardbus_mapreg_map(ct, RTK_PCI_LOIO, CARDBUS_MAPREG_TYPE_IO, 0, 214 &sc->rtk_btag, &sc->rtk_bhandle, &adr, &csc->sc_mapsize) == 0) { 215 #if rbus 216 #else 217 (*ct->ct_cf->cardbus_io_open)(cc, 0, adr, adr+csc->sc_mapsize); 218 #endif 219 csc->sc_cben = CARDBUS_IO_ENABLE; 220 csc->sc_csr |= CARDBUS_COMMAND_IO_ENABLE; 221 csc->sc_bar_reg = RTK_PCI_LOIO; 222 csc->sc_bar_val = adr | CARDBUS_MAPREG_TYPE_IO; 223 } 224 #else 225 if (Cardbus_mapreg_map(ct, RTK_PCI_LOMEM, CARDBUS_MAPREG_TYPE_MEM, 0, 226 &sc->rtk_btag, &sc->rtk_bhandle, &adr, &csc->sc_mapsize) == 0) { 227 #if rbus 228 #else 229 (*ct->ct_cf->cardbus_mem_open)(cc, 0, adr, adr+csc->sc_mapsize); 230 #endif 231 csc->sc_cben = CARDBUS_MEM_ENABLE; 232 csc->sc_csr |= CARDBUS_COMMAND_MEM_ENABLE; 233 csc->sc_bar_reg = RTK_PCI_LOMEM; 234 csc->sc_bar_val = adr | CARDBUS_MAPREG_TYPE_MEM; 235 } 236 #endif 237 else { 238 aprint_error_dev(self, " unable to map deviceregisters\n"); 239 return; 240 } 241 /* 242 * Handle power management nonsense and initialize the 243 * configuration registers. 244 */ 245 rtk_cardbus_setup(csc); 246 247 rtk_attach(sc); 248 249 if (!pmf_device_register(self, NULL, NULL)) 250 aprint_error_dev(self, "couldn't establish power handler\n"); 251 else 252 pmf_class_network_register(self, &sc->ethercom.ec_if); 253 254 /* 255 * Power down the socket. 256 */ 257 Cardbus_function_disable(csc->sc_ct); 258 } 259 260 int 261 rtk_cardbus_detach(device_t self, int flags) 262 { 263 struct rtk_cardbus_softc *csc = device_private(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", device_xname(self)); 271 #endif 272 rv = rtk_detach(sc); 273 if (rv) 274 return rv; 275 /* 276 * Unhook the interrupt 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(struct rtk_cardbus_softc *csc) 293 { 294 struct rtk_softc *sc = &csc->sc_rtk; 295 cardbus_devfunc_t ct = csc->sc_ct; 296 cardbus_chipset_tag_t cc = ct->ct_cc; 297 cardbus_function_tag_t cf = ct->ct_cf; 298 pcireg_t reg, command; 299 int pmreg; 300 301 /* 302 * Handle power management nonsense. 303 */ 304 if (cardbus_get_capability(cc, cf, csc->sc_tag, 305 PCI_CAP_PWRMGMT, &pmreg, 0)) { 306 command = cardbus_conf_read(cc, cf, csc->sc_tag, 307 pmreg + PCI_PMCSR); 308 if (command & PCI_PMCSR_STATE_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 CARDBUS_INTERRUPT_REG); 318 319 /* Reset the power state. */ 320 aprint_normal_dev(sc->sc_dev, 321 "chip is in D%d power mode -- setting to D0\n", 322 command & PCI_PMCSR_STATE_MASK); 323 command &= ~PCI_PMCSR_STATE_MASK; 324 cardbus_conf_write(cc, cf, csc->sc_tag, 325 pmreg + PCI_PMCSR, 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 CARDBUS_INTERRUPT_REG, irq); 334 } 335 } 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 /* Make sure the right access type is on the CardBus bridge. */ 342 (*ct->ct_cf->cardbus_ctrl)(cc, csc->sc_cben); 343 (*ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_BM_ENABLE); 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(struct rtk_softc *sc) 367 { 368 struct rtk_cardbus_softc *csc = (struct rtk_cardbus_softc *)sc; 369 cardbus_devfunc_t ct = csc->sc_ct; 370 cardbus_chipset_tag_t cc = ct->ct_cc; 371 cardbus_function_tag_t cf = ct->ct_cf; 372 373 /* 374 * Power on the socket. 375 */ 376 Cardbus_function_enable(ct); 377 378 /* 379 * Set up the PCI configuration registers. 380 */ 381 rtk_cardbus_setup(csc); 382 383 /* 384 * Map and establish the interrupt. 385 */ 386 csc->sc_ih = cardbus_intr_establish(cc, cf, csc->sc_intrline, 387 IPL_NET, rtk_intr, sc); 388 if (csc->sc_ih == NULL) { 389 aprint_error_dev(sc->sc_dev, 390 "unable to establish interrupt at %d\n", csc->sc_intrline); 391 Cardbus_function_disable(csc->sc_ct); 392 return 1; 393 } 394 aprint_normal_dev(sc->sc_dev, "interrupting at %d\n", 395 csc->sc_intrline); 396 return 0; 397 } 398 399 void 400 rtk_cardbus_disable(struct rtk_softc *sc) 401 { 402 struct rtk_cardbus_softc *csc = (struct rtk_cardbus_softc *)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 csc->sc_ih = NULL; 410 411 /* Power down the socket. */ 412 Cardbus_function_disable(ct); 413 } 414
Indexes created Fri Oct 03 02:09:57 GMT 2025