| 1 | /* $NetBSD: if_cnw.c,v 1.59 2016/10/02 14:16:03 christos Exp $ */ |
| 2 | |
| 3 | /*- |
| 4 | * Copyright (c) 1998, 2004 The NetBSD Foundation, Inc. |
| 5 | * All rights reserved. |
| 6 | * |
| 7 | * This code is derived from software contributed to The NetBSD Foundation |
| 8 | * by Michael Eriksson. |
| 9 | * |
| 10 | * Redistribution and use in source and binary forms, with or without |
| 11 | * modification, are permitted provided that the following conditions |
| 12 | * are met: |
| 13 | * 1. Redistributions of source code must retain the above copyright |
| 14 | * notice, this list of conditions and the following disclaimer. |
| 15 | * 2. Redistributions in binary form must reproduce the above copyright |
| 16 | * notice, this list of conditions and the following disclaimer in the |
| 17 | * documentation and/or other materials provided with the distribution. |
| 18 | * |
| 19 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
| 20 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
| 21 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 22 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
| 23 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 24 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 25 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 26 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| 27 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 28 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 29 | * POSSIBILITY OF SUCH DAMAGE. |
| 30 | */ |
| 31 | |
| 32 | /* |
| 33 | * Copyright (c) 1996, 1997 Berkeley Software Design, Inc. |
| 34 | * All rights reserved. |
| 35 | * |
| 36 | * Redistribution and use in source and binary forms, with or without |
| 37 | * modification, are permitted provided that this notice is retained, |
| 38 | * the conditions in the following notices are met, and terms applying |
| 39 | * to contributors in the following notices also apply to Berkeley |
| 40 | * Software Design, Inc. |
| 41 | * |
| 42 | * 1. Redistributions of source code must retain the above copyright |
| 43 | * notice, this list of conditions and the following disclaimer. |
| 44 | * 2. Redistributions in binary form must reproduce the above copyright |
| 45 | * notice, this list of conditions and the following disclaimer in the |
| 46 | * documentation and/or other materials provided with the distribution. |
| 47 | * 3. All advertising materials mentioning features or use of this software |
| 48 | * must display the following acknowledgement: |
| 49 | * This product includes software developed by |
| 50 | * Berkeley Software Design, Inc. |
| 51 | * 4. Neither the name of the Berkeley Software Design, Inc. nor the names |
| 52 | * of its contributors may be used to endorse or promote products derived |
| 53 | * from this software without specific prior written permission. |
| 54 | * |
| 55 | * THIS SOFTWARE IS PROVIDED BY BERKELEY SOFTWARE DESIGN, INC. ``AS IS'' AND |
| 56 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 57 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 58 | * ARE DISCLAIMED. IN NO EVENT SHALL BERKELEY SOFTWARE DESIGN, INC. BE LIABLE |
| 59 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 60 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 61 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 62 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 63 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 64 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 65 | * SUCH DAMAGE. |
| 66 | * |
| 67 | * Paul Borman, December 1996 |
| 68 | * |
| 69 | * This driver is derived from a generic frame work which is |
| 70 | * Copyright(c) 1994,1995,1996 |
| 71 | * Yoichi Shinoda, Yoshitaka Tokugawa, WIDE Project, Wildboar Project |
| 72 | * and Foretune. All rights reserved. |
| 73 | * |
| 74 | * A linux driver was used as the "hardware reference manual" (i.e., |
| 75 | * to determine registers and a general outline of how the card works) |
| 76 | * That driver is publically available and copyright |
| 77 | * |
| 78 | * John Markus Bjørndalen |
| 79 | * Department of Computer Science |
| 80 | * University of Tromsø |
| 81 | * Norway |
| 82 | * johnm@staff.cs.uit.no, http://www.cs.uit.no/~johnm/ |
| 83 | */ |
| 84 | |
| 85 | /* |
| 86 | * This is a driver for the Xircom CreditCard Netwave (also known as |
| 87 | * the Netwave Airsurfer) wireless LAN PCMCIA adapter. |
| 88 | * |
| 89 | * When this driver was developed, the Linux Netwave driver was used |
| 90 | * as a hardware manual. That driver is Copyright (c) 1997 University |
| 91 | * of Tromsø, Norway. It is part of the Linux pcmcia-cs package that |
| 92 | * can be found at http://pcmcia-cs.sourceforge.net/. The most recent |
| 93 | * version of the pcmcia-cs package when this driver was written was |
| 94 | * 3.0.6. |
| 95 | * |
| 96 | * Unfortunately, a lot of explicit numeric constants were used in the |
| 97 | * Linux driver. I have tried to use symbolic names whenever possible, |
| 98 | * but since I don't have any real hardware documentation, there's |
| 99 | * still one or two "magic numbers" :-(. |
| 100 | * |
| 101 | * Driver limitations: This driver doesn't do multicasting or receiver |
| 102 | * promiscuity, because of missing hardware documentation. I couldn't |
| 103 | * get receiver promiscuity to work, and I haven't even tried |
| 104 | * multicast. Volunteers are welcome, of course :-). |
| 105 | */ |
| 106 | |
| 107 | #include <sys/cdefs.h> |
| 108 | __KERNEL_RCSID(0, "$NetBSD: if_cnw.c,v 1.59 2016/10/02 14:16:03 christos Exp $" ); |
| 109 | |
| 110 | #include "opt_inet.h" |
| 111 | |
| 112 | #include <sys/param.h> |
| 113 | #include <sys/systm.h> |
| 114 | #include <sys/device.h> |
| 115 | #include <sys/socket.h> |
| 116 | #include <sys/mbuf.h> |
| 117 | #include <sys/ioctl.h> |
| 118 | #include <sys/proc.h> |
| 119 | #include <sys/kauth.h> |
| 120 | |
| 121 | #include <net/if.h> |
| 122 | |
| 123 | #include <dev/pcmcia/if_cnwreg.h> |
| 124 | #include <dev/pcmcia/if_cnwioctl.h> |
| 125 | |
| 126 | #include <dev/pcmcia/pcmciareg.h> |
| 127 | #include <dev/pcmcia/pcmciavar.h> |
| 128 | #include <dev/pcmcia/pcmciadevs.h> |
| 129 | |
| 130 | #include <net/if_dl.h> |
| 131 | #include <net/if_ether.h> |
| 132 | |
| 133 | #ifdef INET |
| 134 | #include <netinet/in.h> |
| 135 | #include <netinet/in_systm.h> |
| 136 | #include <netinet/in_var.h> |
| 137 | #include <netinet/ip.h> |
| 138 | #include <netinet/if_inarp.h> |
| 139 | #endif |
| 140 | |
| 141 | #include <net/bpf.h> |
| 142 | #include <net/bpfdesc.h> |
| 143 | |
| 144 | /* |
| 145 | * Let these be patchable variables, initialized from macros that can |
| 146 | * be set in the kernel config file. Someone with lots of spare time |
| 147 | * could probably write a nice Netwave configuration program to do |
| 148 | * this a little bit more elegantly :-). |
| 149 | */ |
| 150 | #ifndef CNW_DOMAIN |
| 151 | #define CNW_DOMAIN 0x100 |
| 152 | #endif |
| 153 | int cnw_domain = CNW_DOMAIN; /* Domain */ |
| 154 | #ifndef CNW_SCRAMBLEKEY |
| 155 | #define CNW_SCRAMBLEKEY 0 |
| 156 | #endif |
| 157 | int cnw_skey = CNW_SCRAMBLEKEY; /* Scramble key */ |
| 158 | |
| 159 | /* |
| 160 | * The card appears to work much better when we only allow one packet |
| 161 | * "in the air" at a time. This is done by not allowing another packet |
| 162 | * on the card, even if there is room. Turning this off will allow the |
| 163 | * driver to stuff packets on the card as soon as a transmit buffer is |
| 164 | * available. This does increase the number of collisions, though. |
| 165 | * We can que a second packet if there are transmit buffers available, |
| 166 | * but we do not actually send the packet until the last packet has |
| 167 | * been written. |
| 168 | */ |
| 169 | #define ONE_AT_A_TIME |
| 170 | |
| 171 | /* |
| 172 | * Netwave cards choke if we try to use io memory address >= 0x400. |
| 173 | * Even though, CIS tuple does not talk about this. |
| 174 | * Use memory mapped access. |
| 175 | */ |
| 176 | #define MEMORY_MAPPED |
| 177 | |
| 178 | int cnw_match(device_t, cfdata_t, void *); |
| 179 | void cnw_attach(device_t, device_t, void *); |
| 180 | int cnw_detach(device_t, int); |
| 181 | |
| 182 | int cnw_activate(device_t, enum devact); |
| 183 | |
| 184 | struct cnw_softc { |
| 185 | device_t sc_dev; /* Device glue (must be first) */ |
| 186 | struct ethercom sc_ethercom; /* Ethernet common part */ |
| 187 | int sc_domain; /* Netwave domain */ |
| 188 | int sc_skey; /* Netwave scramble key */ |
| 189 | struct cnwstats sc_stats; |
| 190 | |
| 191 | /* PCMCIA-specific stuff */ |
| 192 | struct pcmcia_function *sc_pf; /* PCMCIA function */ |
| 193 | #ifndef MEMORY_MAPPED |
| 194 | struct pcmcia_io_handle sc_pcioh; /* PCMCIA I/O space handle */ |
| 195 | int sc_iowin; /* ...window */ |
| 196 | bus_space_tag_t sc_iot; /* ...bus_space tag */ |
| 197 | bus_space_handle_t sc_ioh; /* ...bus_space handle */ |
| 198 | #endif |
| 199 | struct pcmcia_mem_handle sc_pcmemh; /* PCMCIA memory handle */ |
| 200 | bus_size_t sc_memoff; /* ...offset */ |
| 201 | int sc_memwin; /* ...window */ |
| 202 | bus_space_tag_t sc_memt; /* ...bus_space tag */ |
| 203 | bus_space_handle_t sc_memh; /* ...bus_space handle */ |
| 204 | void *sc_ih; /* Interrupt cookie */ |
| 205 | struct timeval sc_txlast; /* When the last xmit was made */ |
| 206 | int sc_active; /* Currently xmitting a packet */ |
| 207 | |
| 208 | int sc_resource; /* Resources alloc'ed on attach */ |
| 209 | #define CNW_RES_PCIC 1 |
| 210 | #define CNW_RES_IO 2 |
| 211 | #define CNW_RES_MEM 4 |
| 212 | #define CNW_RES_NET 8 |
| 213 | }; |
| 214 | |
| 215 | CFATTACH_DECL_NEW(cnw, sizeof(struct cnw_softc), |
| 216 | cnw_match, cnw_attach, cnw_detach, cnw_activate); |
| 217 | |
| 218 | void cnw_reset(struct cnw_softc *); |
| 219 | void cnw_init(struct cnw_softc *); |
| 220 | int cnw_enable(struct cnw_softc *sc); |
| 221 | void cnw_disable(struct cnw_softc *sc); |
| 222 | void cnw_config(struct cnw_softc *sc, u_int8_t *); |
| 223 | void cnw_start(struct ifnet *); |
| 224 | void cnw_transmit(struct cnw_softc *, struct mbuf *); |
| 225 | struct mbuf *cnw_read(struct cnw_softc *); |
| 226 | void cnw_recv(struct cnw_softc *); |
| 227 | int cnw_intr(void *arg); |
| 228 | int cnw_ioctl(struct ifnet *, u_long, void *); |
| 229 | void cnw_watchdog(struct ifnet *); |
| 230 | static int cnw_setdomain(struct cnw_softc *, int); |
| 231 | static int cnw_setkey(struct cnw_softc *, int); |
| 232 | |
| 233 | /* ---------------------------------------------------------------- */ |
| 234 | |
| 235 | /* Help routines */ |
| 236 | static int wait_WOC(struct cnw_softc *, int); |
| 237 | static int read16(struct cnw_softc *, int); |
| 238 | static int cnw_cmd(struct cnw_softc *, int, int, int, int); |
| 239 | |
| 240 | /* |
| 241 | * Wait until the WOC (Write Operation Complete) bit in the |
| 242 | * ASR (Adapter Status Register) is asserted. |
| 243 | */ |
| 244 | static int |
| 245 | wait_WOC(struct cnw_softc *sc, int line) |
| 246 | { |
| 247 | int i, asr; |
| 248 | |
| 249 | for (i = 0; i < 5000; i++) { |
| 250 | #ifndef MEMORY_MAPPED |
| 251 | asr = bus_space_read_1(sc->sc_iot, sc->sc_ioh, CNW_REG_ASR); |
| 252 | #else |
| 253 | asr = bus_space_read_1(sc->sc_memt, sc->sc_memh, |
| 254 | sc->sc_memoff + CNW_IOM_OFF + CNW_REG_ASR); |
| 255 | #endif |
| 256 | if (asr & CNW_ASR_WOC) |
| 257 | return (0); |
| 258 | DELAY(100); |
| 259 | } |
| 260 | if (line > 0) |
| 261 | printf("%s: wedged at line %d\n" , device_xname(sc->sc_dev), line); |
| 262 | return (1); |
| 263 | } |
| 264 | #define WAIT_WOC(sc) wait_WOC(sc, __LINE__) |
| 265 | |
| 266 | |
| 267 | /* |
| 268 | * Read a 16 bit value from the card. |
| 269 | */ |
| 270 | static int |
| 271 | read16(struct cnw_softc *sc, int offset) |
| 272 | { |
| 273 | int hi, lo; |
| 274 | int offs = sc->sc_memoff + offset; |
| 275 | |
| 276 | /* This could presumably be done more efficient with |
| 277 | * bus_space_read_2(), but I don't know anything about the |
| 278 | * byte sex guarantees... Besides, this is pretty cheap as |
| 279 | * well :-) |
| 280 | */ |
| 281 | lo = bus_space_read_1(sc->sc_memt, sc->sc_memh, offs); |
| 282 | hi = bus_space_read_1(sc->sc_memt, sc->sc_memh, offs + 1); |
| 283 | return ((hi << 8) | lo); |
| 284 | } |
| 285 | |
| 286 | |
| 287 | /* |
| 288 | * Send a command to the card by writing it to the command buffer. |
| 289 | */ |
| 290 | int |
| 291 | cnw_cmd(struct cnw_softc *sc, int cmd, int count, int arg1, int arg2) |
| 292 | { |
| 293 | int ptr = sc->sc_memoff + CNW_EREG_CB; |
| 294 | |
| 295 | if (wait_WOC(sc, 0)) { |
| 296 | printf("%s: wedged when issuing cmd 0x%x\n" , |
| 297 | device_xname(sc->sc_dev), cmd); |
| 298 | /* |
| 299 | * We'll continue anyway, as that's probably the best |
| 300 | * thing we can do; at least the user knows there's a |
| 301 | * problem, and can reset the interface with ifconfig |
| 302 | * down/up. |
| 303 | */ |
| 304 | } |
| 305 | |
| 306 | bus_space_write_1(sc->sc_memt, sc->sc_memh, ptr, cmd); |
| 307 | if (count > 0) { |
| 308 | bus_space_write_1(sc->sc_memt, sc->sc_memh, ptr + 1, arg1); |
| 309 | if (count > 1) |
| 310 | bus_space_write_1(sc->sc_memt, sc->sc_memh, |
| 311 | ptr + 2, arg2); |
| 312 | } |
| 313 | bus_space_write_1(sc->sc_memt, sc->sc_memh, |
| 314 | ptr + count + 1, CNW_CMD_EOC); |
| 315 | return (0); |
| 316 | } |
| 317 | #define CNW_CMD0(sc, cmd) \ |
| 318 | do { cnw_cmd(sc, cmd, 0, 0, 0); } while (0) |
| 319 | #define CNW_CMD1(sc, cmd, arg1) \ |
| 320 | do { cnw_cmd(sc, cmd, 1, arg1 , 0); } while (0) |
| 321 | #define CNW_CMD2(sc, cmd, arg1, arg2) \ |
| 322 | do { cnw_cmd(sc, cmd, 2, arg1, arg2); } while (0) |
| 323 | |
| 324 | /* ---------------------------------------------------------------- */ |
| 325 | |
| 326 | /* |
| 327 | * Reset the hardware. |
| 328 | */ |
| 329 | void |
| 330 | cnw_reset(struct cnw_softc *sc) |
| 331 | { |
| 332 | #ifdef CNW_DEBUG |
| 333 | if (sc->sc_ethercom.ec_if.if_flags & IFF_DEBUG) |
| 334 | printf("%s: resetting\n" , device_xname(sc->sc_dev)); |
| 335 | #endif |
| 336 | wait_WOC(sc, 0); |
| 337 | #ifndef MEMORY_MAPPED |
| 338 | bus_space_write_1(sc->sc_iot, sc->sc_ioh, CNW_REG_PMR, CNW_PMR_RESET); |
| 339 | #else |
| 340 | bus_space_write_1(sc->sc_memt, sc->sc_memh, |
| 341 | sc->sc_memoff + CNW_IOM_OFF + CNW_REG_PMR, CNW_PMR_RESET); |
| 342 | #endif |
| 343 | bus_space_write_1(sc->sc_memt, sc->sc_memh, |
| 344 | sc->sc_memoff + CNW_EREG_ASCC, CNW_ASR_WOC); |
| 345 | #ifndef MEMORY_MAPPED |
| 346 | bus_space_write_1(sc->sc_iot, sc->sc_ioh, CNW_REG_PMR, 0); |
| 347 | #else |
| 348 | bus_space_write_1(sc->sc_memt, sc->sc_memh, |
| 349 | sc->sc_memoff + CNW_IOM_OFF + CNW_REG_PMR, 0); |
| 350 | #endif |
| 351 | } |
| 352 | |
| 353 | |
| 354 | /* |
| 355 | * Initialize the card. |
| 356 | */ |
| 357 | void |
| 358 | cnw_init(struct cnw_softc *sc) |
| 359 | { |
| 360 | struct ifnet *ifp = &sc->sc_ethercom.ec_if; |
| 361 | const u_int8_t rxmode = |
| 362 | CNW_RXCONF_RXENA | CNW_RXCONF_BCAST | CNW_RXCONF_AMP; |
| 363 | |
| 364 | /* Reset the card */ |
| 365 | cnw_reset(sc); |
| 366 | |
| 367 | /* Issue a NOP to check the card */ |
| 368 | CNW_CMD0(sc, CNW_CMD_NOP); |
| 369 | |
| 370 | /* Set up receive configuration */ |
| 371 | CNW_CMD1(sc, CNW_CMD_SRC, |
| 372 | rxmode | ((ifp->if_flags & IFF_PROMISC) ? CNW_RXCONF_PRO : 0)); |
| 373 | |
| 374 | /* Set up transmit configuration */ |
| 375 | CNW_CMD1(sc, CNW_CMD_STC, CNW_TXCONF_TXENA); |
| 376 | |
| 377 | /* Set domain */ |
| 378 | CNW_CMD2(sc, CNW_CMD_SMD, sc->sc_domain, sc->sc_domain >> 8); |
| 379 | |
| 380 | /* Set scramble key */ |
| 381 | CNW_CMD2(sc, CNW_CMD_SSK, sc->sc_skey, sc->sc_skey >> 8); |
| 382 | |
| 383 | /* Enable interrupts */ |
| 384 | WAIT_WOC(sc); |
| 385 | #ifndef MEMORY_MAPPED |
| 386 | bus_space_write_1(sc->sc_iot, sc->sc_ioh, |
| 387 | CNW_REG_IMR, CNW_IMR_IENA | CNW_IMR_RFU1); |
| 388 | #else |
| 389 | bus_space_write_1(sc->sc_memt, sc->sc_memh, |
| 390 | sc->sc_memoff + CNW_IOM_OFF + CNW_REG_IMR, |
| 391 | CNW_IMR_IENA | CNW_IMR_RFU1); |
| 392 | #endif |
| 393 | |
| 394 | /* Enable receiver */ |
| 395 | CNW_CMD0(sc, CNW_CMD_ER); |
| 396 | |
| 397 | /* "Set the IENA bit in COR" */ |
| 398 | WAIT_WOC(sc); |
| 399 | #ifndef MEMORY_MAPPED |
| 400 | bus_space_write_1(sc->sc_iot, sc->sc_ioh, CNW_REG_COR, |
| 401 | CNW_COR_IENA | CNW_COR_LVLREQ); |
| 402 | #else |
| 403 | bus_space_write_1(sc->sc_memt, sc->sc_memh, |
| 404 | sc->sc_memoff + CNW_IOM_OFF + CNW_REG_COR, |
| 405 | CNW_COR_IENA | CNW_COR_LVLREQ); |
| 406 | #endif |
| 407 | } |
| 408 | |
| 409 | |
| 410 | /* |
| 411 | * Enable and initialize the card. |
| 412 | */ |
| 413 | int |
| 414 | cnw_enable(struct cnw_softc *sc) |
| 415 | { |
| 416 | struct ifnet *ifp = &sc->sc_ethercom.ec_if; |
| 417 | |
| 418 | if ((ifp->if_flags & IFF_RUNNING) != 0) |
| 419 | return (0); |
| 420 | |
| 421 | sc->sc_ih = pcmcia_intr_establish(sc->sc_pf, IPL_NET, cnw_intr, sc); |
| 422 | if (sc->sc_ih == NULL) { |
| 423 | aprint_error_dev(sc->sc_dev, "couldn't establish interrupt handler\n" ); |
| 424 | return (EIO); |
| 425 | } |
| 426 | if (pcmcia_function_enable(sc->sc_pf) != 0) { |
| 427 | aprint_error_dev(sc->sc_dev, "couldn't enable card\n" ); |
| 428 | return (EIO); |
| 429 | } |
| 430 | sc->sc_resource |= CNW_RES_PCIC; |
| 431 | cnw_init(sc); |
| 432 | ifp->if_flags &= ~IFF_OACTIVE; |
| 433 | ifp->if_flags |= IFF_RUNNING; |
| 434 | return (0); |
| 435 | } |
| 436 | |
| 437 | |
| 438 | /* |
| 439 | * Stop and disable the card. |
| 440 | */ |
| 441 | void |
| 442 | cnw_disable(struct cnw_softc *sc) |
| 443 | { |
| 444 | struct ifnet *ifp = &sc->sc_ethercom.ec_if; |
| 445 | |
| 446 | if ((ifp->if_flags & IFF_RUNNING) == 0) |
| 447 | return; |
| 448 | |
| 449 | pcmcia_function_disable(sc->sc_pf); |
| 450 | sc->sc_resource &= ~CNW_RES_PCIC; |
| 451 | pcmcia_intr_disestablish(sc->sc_pf, sc->sc_ih); |
| 452 | ifp->if_flags &= ~IFF_RUNNING; |
| 453 | ifp->if_timer = 0; |
| 454 | } |
| 455 | |
| 456 | |
| 457 | /* |
| 458 | * Match the hardware we handle. |
| 459 | */ |
| 460 | int |
| 461 | cnw_match(device_t parent, cfdata_t match, void *aux) |
| 462 | { |
| 463 | struct pcmcia_attach_args *pa = aux; |
| 464 | |
| 465 | if (pa->manufacturer == PCMCIA_VENDOR_XIRCOM && |
| 466 | pa->product == PCMCIA_PRODUCT_XIRCOM_CNW_801) |
| 467 | return 1; |
| 468 | if (pa->manufacturer == PCMCIA_VENDOR_XIRCOM && |
| 469 | pa->product == PCMCIA_PRODUCT_XIRCOM_CNW_802) |
| 470 | return 1; |
| 471 | return 0; |
| 472 | } |
| 473 | |
| 474 | |
| 475 | /* |
| 476 | * Attach the card. |
| 477 | */ |
| 478 | void |
| 479 | cnw_attach(device_t parent, device_t self, void *aux) |
| 480 | { |
| 481 | struct cnw_softc *sc = device_private(self); |
| 482 | struct pcmcia_attach_args *pa = aux; |
| 483 | struct ifnet *ifp = &sc->sc_ethercom.ec_if; |
| 484 | u_int8_t macaddr[ETHER_ADDR_LEN]; |
| 485 | int i; |
| 486 | bus_size_t memsize; |
| 487 | |
| 488 | sc->sc_dev = self; |
| 489 | sc->sc_resource = 0; |
| 490 | |
| 491 | /* Enable the card */ |
| 492 | sc->sc_pf = pa->pf; |
| 493 | pcmcia_function_init(sc->sc_pf, SIMPLEQ_FIRST(&sc->sc_pf->cfe_head)); |
| 494 | if (pcmcia_function_enable(sc->sc_pf)) { |
| 495 | aprint_error_dev(self, "function enable failed\n" ); |
| 496 | return; |
| 497 | } |
| 498 | sc->sc_resource |= CNW_RES_PCIC; |
| 499 | |
| 500 | /* Map I/O register and "memory" */ |
| 501 | #ifndef MEMORY_MAPPED |
| 502 | if (pcmcia_io_alloc(sc->sc_pf, 0, CNW_IO_SIZE, CNW_IO_SIZE, |
| 503 | &sc->sc_pcioh) != 0) { |
| 504 | aprint_error_dev(self, "can't allocate i/o space\n" ); |
| 505 | goto fail; |
| 506 | } |
| 507 | if (pcmcia_io_map(sc->sc_pf, PCMCIA_WIDTH_IO16, &sc->sc_pcioh, |
| 508 | &sc->sc_iowin) != 0) { |
| 509 | aprint_error_dev(self, "can't map i/o space\n" ); |
| 510 | pcmcia_io_free(sc->sc_pf, &sc->sc_pcioh); |
| 511 | goto fail; |
| 512 | } |
| 513 | sc->sc_iot = sc->sc_pcioh.iot; |
| 514 | sc->sc_ioh = sc->sc_pcioh.ioh; |
| 515 | sc->sc_resource |= CNW_RES_IO; |
| 516 | #endif |
| 517 | #ifndef MEMORY_MAPPED |
| 518 | memsize = CNW_MEM_SIZE; |
| 519 | #else |
| 520 | memsize = CNW_MEM_SIZE + CNW_IOM_SIZE; |
| 521 | #endif |
| 522 | if (pcmcia_mem_alloc(sc->sc_pf, memsize, &sc->sc_pcmemh) != 0) { |
| 523 | aprint_error_dev(self, "can't allocate memory\n" ); |
| 524 | goto fail; |
| 525 | } |
| 526 | if (pcmcia_mem_map(sc->sc_pf, PCMCIA_WIDTH_MEM8|PCMCIA_MEM_COMMON, |
| 527 | CNW_MEM_ADDR, memsize, &sc->sc_pcmemh, &sc->sc_memoff, |
| 528 | &sc->sc_memwin) != 0) { |
| 529 | aprint_error_dev(self, "can't map memory\n" ); |
| 530 | pcmcia_mem_free(sc->sc_pf, &sc->sc_pcmemh); |
| 531 | goto fail; |
| 532 | } |
| 533 | sc->sc_memt = sc->sc_pcmemh.memt; |
| 534 | sc->sc_memh = sc->sc_pcmemh.memh; |
| 535 | sc->sc_resource |= CNW_RES_MEM; |
| 536 | |
| 537 | /* Finish setup of softc */ |
| 538 | sc->sc_domain = cnw_domain; |
| 539 | sc->sc_skey = cnw_skey; |
| 540 | |
| 541 | /* Get MAC address */ |
| 542 | cnw_reset(sc); |
| 543 | for (i = 0; i < ETHER_ADDR_LEN; i++) |
| 544 | macaddr[i] = bus_space_read_1(sc->sc_memt, sc->sc_memh, |
| 545 | sc->sc_memoff + CNW_EREG_PA + i); |
| 546 | printf("%s: address %s\n" , device_xname(sc->sc_dev), |
| 547 | ether_sprintf(macaddr)); |
| 548 | |
| 549 | /* Set up ifnet structure */ |
| 550 | strlcpy(ifp->if_xname, device_xname(sc->sc_dev), IFNAMSIZ); |
| 551 | ifp->if_softc = sc; |
| 552 | ifp->if_start = cnw_start; |
| 553 | ifp->if_ioctl = cnw_ioctl; |
| 554 | ifp->if_watchdog = cnw_watchdog; |
| 555 | ifp->if_flags = IFF_BROADCAST | IFF_MULTICAST | IFF_SIMPLEX | |
| 556 | IFF_NOTRAILERS; |
| 557 | IFQ_SET_READY(&ifp->if_snd); |
| 558 | |
| 559 | /* Attach the interface */ |
| 560 | if_attach(ifp); |
| 561 | ether_ifattach(ifp, macaddr); |
| 562 | |
| 563 | sc->sc_resource |= CNW_RES_NET; |
| 564 | |
| 565 | ifp->if_baudrate = IF_Mbps(1); |
| 566 | |
| 567 | /* Disable the card now, and turn it on when the interface goes up */ |
| 568 | pcmcia_function_disable(sc->sc_pf); |
| 569 | sc->sc_resource &= ~CNW_RES_PCIC; |
| 570 | return; |
| 571 | |
| 572 | fail: |
| 573 | #ifndef MEMORY_MAPPED |
| 574 | if ((sc->sc_resource & CNW_RES_IO) != 0) { |
| 575 | pcmcia_io_unmap(sc->sc_pf, sc->sc_iowin); |
| 576 | pcmcia_io_free(sc->sc_pf, &sc->sc_pcioh); |
| 577 | sc->sc_resource &= ~CNW_RES_IO; |
| 578 | } |
| 579 | #endif |
| 580 | if ((sc->sc_resource & CNW_RES_PCIC) != 0) { |
| 581 | pcmcia_function_disable(sc->sc_pf); |
| 582 | sc->sc_resource &= ~CNW_RES_PCIC; |
| 583 | } |
| 584 | } |
| 585 | |
| 586 | /* |
| 587 | * Start outputting on the interface. |
| 588 | */ |
| 589 | void |
| 590 | cnw_start(struct ifnet *ifp) |
| 591 | { |
| 592 | struct cnw_softc *sc = ifp->if_softc; |
| 593 | struct mbuf *m0; |
| 594 | int lif; |
| 595 | int asr; |
| 596 | #ifdef ONE_AT_A_TIME |
| 597 | struct timeval now; |
| 598 | #endif |
| 599 | |
| 600 | #ifdef CNW_DEBUG |
| 601 | if (sc->sc_ethercom.ec_if.if_flags & IFF_DEBUG) |
| 602 | printf("%s: cnw_start\n" , ifp->if_xname); |
| 603 | if (ifp->if_flags & IFF_OACTIVE) |
| 604 | printf("%s: cnw_start reentered\n" , ifp->if_xname); |
| 605 | #endif |
| 606 | |
| 607 | ifp->if_flags |= IFF_OACTIVE; |
| 608 | |
| 609 | for (;;) { |
| 610 | #ifdef ONE_AT_A_TIME |
| 611 | microtime(&now); |
| 612 | now.tv_sec -= sc->sc_txlast.tv_sec; |
| 613 | now.tv_usec -= sc->sc_txlast.tv_usec; |
| 614 | if (now.tv_usec < 0) { |
| 615 | now.tv_usec += 1000000; |
| 616 | now.tv_sec--; |
| 617 | } |
| 618 | |
| 619 | /* |
| 620 | * Don't ship this packet out until the last |
| 621 | * packet has left the building. |
| 622 | * If we have not tried to send a packet for 1/5 |
| 623 | * a second then we assume we lost an interrupt, |
| 624 | * lets go on and send the next packet anyhow. |
| 625 | * |
| 626 | * I suppose we could check to see if it is okay |
| 627 | * to put additional packets on the card (beyond |
| 628 | * the one already waiting to be sent) but I don't |
| 629 | * think we would get any improvement in speed as |
| 630 | * we should have ample time to put the next packet |
| 631 | * on while this one is going out. |
| 632 | */ |
| 633 | if (sc->sc_active && now.tv_sec == 0 && now.tv_usec < 200000) |
| 634 | break; |
| 635 | #endif |
| 636 | |
| 637 | /* Make sure the link integrity field is on */ |
| 638 | WAIT_WOC(sc); |
| 639 | lif = bus_space_read_1(sc->sc_memt, sc->sc_memh, |
| 640 | sc->sc_memoff + CNW_EREG_LIF); |
| 641 | if (lif == 0) { |
| 642 | #ifdef CNW_DEBUG |
| 643 | if (sc->sc_ethercom.ec_if.if_flags & IFF_DEBUG) |
| 644 | printf("%s: link integrity %d\n" , ifp->if_xname, lif); |
| 645 | #endif |
| 646 | break; |
| 647 | } |
| 648 | |
| 649 | /* Is there any buffer space available on the card? */ |
| 650 | WAIT_WOC(sc); |
| 651 | #ifndef MEMORY_MAPPED |
| 652 | asr = bus_space_read_1(sc->sc_iot, sc->sc_ioh, CNW_REG_ASR); |
| 653 | #else |
| 654 | asr = bus_space_read_1(sc->sc_memt, sc->sc_memh, |
| 655 | sc->sc_memoff + CNW_IOM_OFF + CNW_REG_ASR); |
| 656 | #endif |
| 657 | if (!(asr & CNW_ASR_TXBA)) { |
| 658 | #ifdef CNW_DEBUG |
| 659 | if (sc->sc_ethercom.ec_if.if_flags & IFF_DEBUG) |
| 660 | printf("%s: no buffer space\n" , ifp->if_xname); |
| 661 | #endif |
| 662 | break; |
| 663 | } |
| 664 | |
| 665 | sc->sc_stats.nws_tx++; |
| 666 | |
| 667 | IFQ_DEQUEUE(&ifp->if_snd, m0); |
| 668 | if (m0 == 0) |
| 669 | break; |
| 670 | |
| 671 | bpf_mtap(ifp, m0); |
| 672 | |
| 673 | cnw_transmit(sc, m0); |
| 674 | ++ifp->if_opackets; |
| 675 | ifp->if_timer = 3; /* start watchdog timer */ |
| 676 | |
| 677 | microtime(&sc->sc_txlast); |
| 678 | sc->sc_active = 1; |
| 679 | } |
| 680 | |
| 681 | ifp->if_flags &= ~IFF_OACTIVE; |
| 682 | } |
| 683 | |
| 684 | /* |
| 685 | * Transmit a packet. |
| 686 | */ |
| 687 | void |
| 688 | cnw_transmit(struct cnw_softc *sc, struct mbuf *m0) |
| 689 | { |
| 690 | int buffer, bufsize, bufoffset, bufptr, bufspace, len, mbytes, n; |
| 691 | struct mbuf *m; |
| 692 | u_int8_t *mptr; |
| 693 | |
| 694 | /* Get buffer info from card */ |
| 695 | buffer = read16(sc, CNW_EREG_TDP); |
| 696 | bufsize = read16(sc, CNW_EREG_TDP + 2); |
| 697 | bufoffset = read16(sc, CNW_EREG_TDP + 4); |
| 698 | #ifdef CNW_DEBUG |
| 699 | if (sc->sc_ethercom.ec_if.if_flags & IFF_DEBUG) |
| 700 | printf("%s: cnw_transmit b=0x%x s=%d o=0x%x\n" , |
| 701 | device_xname(sc->sc_dev), buffer, bufsize, bufoffset); |
| 702 | #endif |
| 703 | |
| 704 | /* Copy data from mbuf chain to card buffers */ |
| 705 | bufptr = sc->sc_memoff + buffer + bufoffset; |
| 706 | bufspace = bufsize; |
| 707 | len = 0; |
| 708 | for (m = m0; m; ) { |
| 709 | mptr = mtod(m, u_int8_t *); |
| 710 | mbytes = m->m_len; |
| 711 | len += mbytes; |
| 712 | while (mbytes > 0) { |
| 713 | if (bufspace == 0) { |
| 714 | buffer = read16(sc, buffer); |
| 715 | bufptr = sc->sc_memoff + buffer + bufoffset; |
| 716 | bufspace = bufsize; |
| 717 | #ifdef CNW_DEBUG |
| 718 | if (sc->sc_ethercom.ec_if.if_flags & IFF_DEBUG) |
| 719 | printf("%s: next buffer @0x%x\n" , |
| 720 | device_xname(sc->sc_dev), buffer); |
| 721 | #endif |
| 722 | } |
| 723 | n = mbytes <= bufspace ? mbytes : bufspace; |
| 724 | bus_space_write_region_1(sc->sc_memt, sc->sc_memh, |
| 725 | bufptr, mptr, n); |
| 726 | bufptr += n; |
| 727 | bufspace -= n; |
| 728 | mptr += n; |
| 729 | mbytes -= n; |
| 730 | } |
| 731 | m = m0 = m_free(m); |
| 732 | } |
| 733 | |
| 734 | /* Issue transmit command */ |
| 735 | CNW_CMD2(sc, CNW_CMD_TL, len, len >> 8); |
| 736 | } |
| 737 | |
| 738 | |
| 739 | /* |
| 740 | * Pull a packet from the card into an mbuf chain. |
| 741 | */ |
| 742 | struct mbuf * |
| 743 | cnw_read(struct cnw_softc *sc) |
| 744 | { |
| 745 | struct mbuf *m, *top, **mp; |
| 746 | int totbytes, buffer, bufbytes, bufptr, mbytes, n; |
| 747 | u_int8_t *mptr; |
| 748 | |
| 749 | WAIT_WOC(sc); |
| 750 | totbytes = read16(sc, CNW_EREG_RDP); |
| 751 | #ifdef CNW_DEBUG |
| 752 | if (sc->sc_ethercom.ec_if.if_flags & IFF_DEBUG) |
| 753 | printf("%s: recv %d bytes\n" , device_xname(sc->sc_dev), totbytes); |
| 754 | #endif |
| 755 | buffer = CNW_EREG_RDP + 2; |
| 756 | bufbytes = 0; |
| 757 | bufptr = 0; /* XXX make gcc happy */ |
| 758 | |
| 759 | MGETHDR(m, M_DONTWAIT, MT_DATA); |
| 760 | if (m == 0) |
| 761 | return (0); |
| 762 | m_set_rcvif(m, &sc->sc_ethercom.ec_if); |
| 763 | m->m_pkthdr.len = totbytes; |
| 764 | mbytes = MHLEN; |
| 765 | top = 0; |
| 766 | mp = ⊤ |
| 767 | |
| 768 | while (totbytes > 0) { |
| 769 | if (top) { |
| 770 | MGET(m, M_DONTWAIT, MT_DATA); |
| 771 | if (m == 0) { |
| 772 | m_freem(top); |
| 773 | return (0); |
| 774 | } |
| 775 | mbytes = MLEN; |
| 776 | } |
| 777 | if (totbytes >= MINCLSIZE) { |
| 778 | MCLGET(m, M_DONTWAIT); |
| 779 | if ((m->m_flags & M_EXT) == 0) { |
| 780 | m_free(m); |
| 781 | m_freem(top); |
| 782 | return (0); |
| 783 | } |
| 784 | mbytes = MCLBYTES; |
| 785 | } |
| 786 | if (!top) { |
| 787 | int pad = ALIGN(sizeof(struct ether_header)) - |
| 788 | sizeof(struct ether_header); |
| 789 | m->m_data += pad; |
| 790 | mbytes -= pad; |
| 791 | } |
| 792 | mptr = mtod(m, u_int8_t *); |
| 793 | mbytes = m->m_len = min(totbytes, mbytes); |
| 794 | totbytes -= mbytes; |
| 795 | while (mbytes > 0) { |
| 796 | if (bufbytes == 0) { |
| 797 | buffer = read16(sc, buffer); |
| 798 | bufbytes = read16(sc, buffer + 2); |
| 799 | bufptr = sc->sc_memoff + buffer + |
| 800 | read16(sc, buffer + 4); |
| 801 | #ifdef CNW_DEBUG |
| 802 | if (sc->sc_ethercom.ec_if.if_flags & IFF_DEBUG) |
| 803 | printf("%s: %d bytes @0x%x+0x%lx\n" , |
| 804 | device_xname(sc->sc_dev), bufbytes, |
| 805 | buffer, (u_long)(bufptr - buffer - |
| 806 | sc->sc_memoff)); |
| 807 | #endif |
| 808 | } |
| 809 | n = mbytes <= bufbytes ? mbytes : bufbytes; |
| 810 | bus_space_read_region_1(sc->sc_memt, sc->sc_memh, |
| 811 | bufptr, mptr, n); |
| 812 | bufbytes -= n; |
| 813 | bufptr += n; |
| 814 | mbytes -= n; |
| 815 | mptr += n; |
| 816 | } |
| 817 | *mp = m; |
| 818 | mp = &m->m_next; |
| 819 | } |
| 820 | |
| 821 | return (top); |
| 822 | } |
| 823 | |
| 824 | |
| 825 | /* |
| 826 | * Handle received packets. |
| 827 | */ |
| 828 | void |
| 829 | cnw_recv(struct cnw_softc *sc) |
| 830 | { |
| 831 | int rser; |
| 832 | struct ifnet *ifp = &sc->sc_ethercom.ec_if; |
| 833 | struct mbuf *m; |
| 834 | |
| 835 | for (;;) { |
| 836 | WAIT_WOC(sc); |
| 837 | rser = bus_space_read_1(sc->sc_memt, sc->sc_memh, |
| 838 | sc->sc_memoff + CNW_EREG_RSER); |
| 839 | if (!(rser & CNW_RSER_RXAVAIL)) |
| 840 | return; |
| 841 | |
| 842 | /* Pull packet off card */ |
| 843 | m = cnw_read(sc); |
| 844 | |
| 845 | /* Acknowledge packet */ |
| 846 | CNW_CMD0(sc, CNW_CMD_SRP); |
| 847 | |
| 848 | /* Did we manage to get the packet from the interface? */ |
| 849 | if (m == 0) { |
| 850 | ++ifp->if_ierrors; |
| 851 | return; |
| 852 | } |
| 853 | ++ifp->if_ipackets; |
| 854 | |
| 855 | bpf_mtap(ifp, m); |
| 856 | |
| 857 | /* Pass the packet up. */ |
| 858 | if_percpuq_enqueue(ifp->if_percpuq, m); |
| 859 | } |
| 860 | } |
| 861 | |
| 862 | |
| 863 | /* |
| 864 | * Interrupt handler. |
| 865 | */ |
| 866 | int |
| 867 | cnw_intr(void *arg) |
| 868 | { |
| 869 | struct cnw_softc *sc = arg; |
| 870 | struct ifnet *ifp = &sc->sc_ethercom.ec_if; |
| 871 | int ret, status, rser, tser; |
| 872 | |
| 873 | if ((sc->sc_ethercom.ec_if.if_flags & IFF_RUNNING) == 0 || |
| 874 | !device_is_active(sc->sc_dev)) |
| 875 | return (0); |
| 876 | ifp->if_timer = 0; /* stop watchdog timer */ |
| 877 | |
| 878 | ret = 0; |
| 879 | for (;;) { |
| 880 | WAIT_WOC(sc); |
| 881 | #ifndef MEMORY_MAPPED |
| 882 | status = bus_space_read_1(sc->sc_iot, sc->sc_ioh, |
| 883 | CNW_REG_CCSR); |
| 884 | #else |
| 885 | status = bus_space_read_1(sc->sc_memt, sc->sc_memh, |
| 886 | sc->sc_memoff + CNW_IOM_OFF + CNW_REG_CCSR); |
| 887 | #endif |
| 888 | if (!(status & 0x02)) |
| 889 | /* No more commands, or shared IRQ */ |
| 890 | return (ret); |
| 891 | ret = 1; |
| 892 | #ifndef MEMORY_MAPPED |
| 893 | status = bus_space_read_1(sc->sc_iot, sc->sc_ioh, CNW_REG_ASR); |
| 894 | #else |
| 895 | status = bus_space_read_1(sc->sc_memt, sc->sc_memh, |
| 896 | sc->sc_memoff + CNW_IOM_OFF + CNW_REG_ASR); |
| 897 | #endif |
| 898 | |
| 899 | /* Anything to receive? */ |
| 900 | if (status & CNW_ASR_RXRDY) { |
| 901 | sc->sc_stats.nws_rx++; |
| 902 | cnw_recv(sc); |
| 903 | } |
| 904 | |
| 905 | /* Receive error */ |
| 906 | if (status & CNW_ASR_RXERR) { |
| 907 | /* |
| 908 | * I get a *lot* of spurious receive errors |
| 909 | * (many per second), even when the interface |
| 910 | * is quiescent, so we don't increment |
| 911 | * if_ierrors here. |
| 912 | */ |
| 913 | rser = bus_space_read_1(sc->sc_memt, sc->sc_memh, |
| 914 | sc->sc_memoff + CNW_EREG_RSER); |
| 915 | |
| 916 | /* RX statistics */ |
| 917 | sc->sc_stats.nws_rxerr++; |
| 918 | if (rser & CNW_RSER_RXBIG) |
| 919 | sc->sc_stats.nws_rxframe++; |
| 920 | if (rser & CNW_RSER_RXCRC) |
| 921 | sc->sc_stats.nws_rxcrcerror++; |
| 922 | if (rser & CNW_RSER_RXOVERRUN) |
| 923 | sc->sc_stats.nws_rxoverrun++; |
| 924 | if (rser & CNW_RSER_RXOVERFLOW) |
| 925 | sc->sc_stats.nws_rxoverflow++; |
| 926 | if (rser & CNW_RSER_RXERR) |
| 927 | sc->sc_stats.nws_rxerrors++; |
| 928 | if (rser & CNW_RSER_RXAVAIL) |
| 929 | sc->sc_stats.nws_rxavail++; |
| 930 | |
| 931 | /* Clear error bits in RSER */ |
| 932 | WAIT_WOC(sc); |
| 933 | bus_space_write_1(sc->sc_memt, sc->sc_memh, |
| 934 | sc->sc_memoff + CNW_EREG_RSERW, |
| 935 | CNW_RSER_RXERR | |
| 936 | (rser & (CNW_RSER_RXCRC | CNW_RSER_RXBIG))); |
| 937 | /* Clear RXERR in ASR */ |
| 938 | WAIT_WOC(sc); |
| 939 | bus_space_write_1(sc->sc_memt, sc->sc_memh, |
| 940 | sc->sc_memoff + CNW_EREG_ASCC, CNW_ASR_RXERR); |
| 941 | } |
| 942 | |
| 943 | /* Transmit done */ |
| 944 | if (status & CNW_ASR_TXDN) { |
| 945 | tser = bus_space_read_1(sc->sc_memt, sc->sc_memh, |
| 946 | CNW_EREG_TSER); |
| 947 | |
| 948 | /* TX statistics */ |
| 949 | if (tser & CNW_TSER_TXERR) |
| 950 | sc->sc_stats.nws_txerrors++; |
| 951 | if (tser & CNW_TSER_TXNOAP) |
| 952 | sc->sc_stats.nws_txlostcd++; |
| 953 | if (tser & CNW_TSER_TXGU) |
| 954 | sc->sc_stats.nws_txabort++; |
| 955 | |
| 956 | if (tser & CNW_TSER_TXOK) { |
| 957 | sc->sc_stats.nws_txokay++; |
| 958 | sc->sc_stats.nws_txretries[status & 0xf]++; |
| 959 | WAIT_WOC(sc); |
| 960 | bus_space_write_1(sc->sc_memt, sc->sc_memh, |
| 961 | sc->sc_memoff + CNW_EREG_TSERW, |
| 962 | CNW_TSER_TXOK | CNW_TSER_RTRY); |
| 963 | } |
| 964 | |
| 965 | if (tser & CNW_TSER_ERROR) { |
| 966 | ++ifp->if_oerrors; |
| 967 | WAIT_WOC(sc); |
| 968 | bus_space_write_1(sc->sc_memt, sc->sc_memh, |
| 969 | sc->sc_memoff + CNW_EREG_TSERW, |
| 970 | (tser & CNW_TSER_ERROR) | |
| 971 | CNW_TSER_RTRY); |
| 972 | } |
| 973 | |
| 974 | sc->sc_active = 0; |
| 975 | ifp->if_flags &= ~IFF_OACTIVE; |
| 976 | |
| 977 | /* Continue to send packets from the queue */ |
| 978 | cnw_start(&sc->sc_ethercom.ec_if); |
| 979 | } |
| 980 | |
| 981 | } |
| 982 | } |
| 983 | |
| 984 | |
| 985 | /* |
| 986 | * Handle device ioctls. |
| 987 | */ |
| 988 | int |
| 989 | cnw_ioctl(struct ifnet *ifp, u_long cmd, void *data) |
| 990 | { |
| 991 | struct cnw_softc *sc = ifp->if_softc; |
| 992 | struct ifaddr *ifa = (struct ifaddr *)data; |
| 993 | struct ifreq *ifr = (struct ifreq *)data; |
| 994 | int s, error = 0; |
| 995 | struct lwp *l = curlwp; /*XXX*/ |
| 996 | |
| 997 | switch (cmd) { |
| 998 | case SIOCINITIFADDR: |
| 999 | case SIOCSIFFLAGS: |
| 1000 | case SIOCADDMULTI: |
| 1001 | case SIOCDELMULTI: |
| 1002 | case SIOCGCNWDOMAIN: |
| 1003 | case SIOCGCNWSTATS: |
| 1004 | break; |
| 1005 | case SIOCSCNWDOMAIN: |
| 1006 | case SIOCSCNWKEY: |
| 1007 | error = kauth_authorize_network(l->l_cred, |
| 1008 | KAUTH_NETWORK_INTERFACE, |
| 1009 | KAUTH_REQ_NETWORK_INTERFACE_SETPRIV, ifp, KAUTH_ARG(cmd), |
| 1010 | NULL); |
| 1011 | if (error) |
| 1012 | return (error); |
| 1013 | break; |
| 1014 | case SIOCGCNWSTATUS: |
| 1015 | error = kauth_authorize_network(l->l_cred, |
| 1016 | KAUTH_NETWORK_INTERFACE, |
| 1017 | KAUTH_REQ_NETWORK_INTERFACE_GETPRIV, ifp, KAUTH_ARG(cmd), |
| 1018 | NULL); |
| 1019 | if (error) |
| 1020 | return (error); |
| 1021 | break; |
| 1022 | default: |
| 1023 | return (EINVAL); |
| 1024 | } |
| 1025 | |
| 1026 | s = splnet(); |
| 1027 | |
| 1028 | switch (cmd) { |
| 1029 | |
| 1030 | case SIOCINITIFADDR: |
| 1031 | if (!(ifp->if_flags & IFF_RUNNING) && |
| 1032 | (error = cnw_enable(sc)) != 0) |
| 1033 | break; |
| 1034 | ifp->if_flags |= IFF_UP; |
| 1035 | cnw_init(sc); |
| 1036 | switch (ifa->ifa_addr->sa_family) { |
| 1037 | #ifdef INET |
| 1038 | case AF_INET: |
| 1039 | arp_ifinit(&sc->sc_ethercom.ec_if, ifa); |
| 1040 | break; |
| 1041 | #endif |
| 1042 | default: |
| 1043 | break; |
| 1044 | } |
| 1045 | break; |
| 1046 | |
| 1047 | case SIOCSIFFLAGS: |
| 1048 | if ((error = ifioctl_common(ifp, cmd, data)) != 0) |
| 1049 | break; |
| 1050 | /* XXX re-use ether_ioctl() */ |
| 1051 | switch (ifp->if_flags & (IFF_UP|IFF_RUNNING)) { |
| 1052 | case IFF_RUNNING: |
| 1053 | /* |
| 1054 | * The interface is marked down and it is running, so |
| 1055 | * stop it. |
| 1056 | */ |
| 1057 | cnw_disable(sc); |
| 1058 | break; |
| 1059 | case IFF_UP: |
| 1060 | /* |
| 1061 | * The interface is marked up and it is stopped, so |
| 1062 | * start it. |
| 1063 | */ |
| 1064 | error = cnw_enable(sc); |
| 1065 | break; |
| 1066 | default: |
| 1067 | /* IFF_PROMISC may be changed */ |
| 1068 | cnw_init(sc); |
| 1069 | break; |
| 1070 | } |
| 1071 | break; |
| 1072 | |
| 1073 | case SIOCADDMULTI: |
| 1074 | case SIOCDELMULTI: |
| 1075 | /* Update our multicast list. */ |
| 1076 | if ((error = ether_ioctl(ifp, cmd, data)) == ENETRESET) { |
| 1077 | if (ifp->if_flags & IFF_RUNNING) |
| 1078 | cnw_init(sc); |
| 1079 | error = 0; |
| 1080 | } |
| 1081 | break; |
| 1082 | |
| 1083 | case SIOCGCNWDOMAIN: |
| 1084 | ifr->ifr_domain = sc->sc_domain; |
| 1085 | break; |
| 1086 | |
| 1087 | case SIOCSCNWDOMAIN: |
| 1088 | error = cnw_setdomain(sc, ifr->ifr_domain); |
| 1089 | break; |
| 1090 | |
| 1091 | case SIOCSCNWKEY: |
| 1092 | error = cnw_setkey(sc, ifr->ifr_key); |
| 1093 | break; |
| 1094 | |
| 1095 | case SIOCGCNWSTATUS: |
| 1096 | if ((ifp->if_flags & IFF_RUNNING) == 0) |
| 1097 | break; |
| 1098 | bus_space_read_region_1(sc->sc_memt, sc->sc_memh, |
| 1099 | sc->sc_memoff + CNW_EREG_CB, |
| 1100 | ((struct cnwstatus *)data)->data, |
| 1101 | sizeof(((struct cnwstatus *)data)->data)); |
| 1102 | break; |
| 1103 | |
| 1104 | case SIOCGCNWSTATS: |
| 1105 | memcpy((void *)&(((struct cnwistats *)data)->stats), |
| 1106 | (void *)&sc->sc_stats, sizeof(struct cnwstats)); |
| 1107 | break; |
| 1108 | |
| 1109 | default: |
| 1110 | error = ether_ioctl(ifp, cmd, data); |
| 1111 | break; |
| 1112 | } |
| 1113 | |
| 1114 | splx(s); |
| 1115 | return (error); |
| 1116 | } |
| 1117 | |
| 1118 | |
| 1119 | /* |
| 1120 | * Device timeout/watchdog routine. Entered if the device neglects to |
| 1121 | * generate an interrupt after a transmit has been started on it. |
| 1122 | */ |
| 1123 | void |
| 1124 | cnw_watchdog(struct ifnet *ifp) |
| 1125 | { |
| 1126 | struct cnw_softc *sc = ifp->if_softc; |
| 1127 | |
| 1128 | printf("%s: device timeout; card reset\n" , device_xname(sc->sc_dev)); |
| 1129 | ++ifp->if_oerrors; |
| 1130 | cnw_init(sc); |
| 1131 | } |
| 1132 | |
| 1133 | int |
| 1134 | cnw_setdomain(struct cnw_softc *sc, int domain) |
| 1135 | { |
| 1136 | int s; |
| 1137 | |
| 1138 | if (domain & ~0x1ff) |
| 1139 | return EINVAL; |
| 1140 | |
| 1141 | s = splnet(); |
| 1142 | CNW_CMD2(sc, CNW_CMD_SMD, domain, domain >> 8); |
| 1143 | splx(s); |
| 1144 | |
| 1145 | sc->sc_domain = domain; |
| 1146 | return 0; |
| 1147 | } |
| 1148 | |
| 1149 | int |
| 1150 | cnw_setkey(struct cnw_softc *sc, int key) |
| 1151 | { |
| 1152 | int s; |
| 1153 | |
| 1154 | if (key & ~0xffff) |
| 1155 | return EINVAL; |
| 1156 | |
| 1157 | s = splnet(); |
| 1158 | CNW_CMD2(sc, CNW_CMD_SSK, key, key >> 8); |
| 1159 | splx(s); |
| 1160 | |
| 1161 | sc->sc_skey = key; |
| 1162 | return 0; |
| 1163 | } |
| 1164 | |
| 1165 | int |
| 1166 | cnw_activate(device_t self, enum devact act) |
| 1167 | { |
| 1168 | struct cnw_softc *sc = device_private(self); |
| 1169 | |
| 1170 | switch (act) { |
| 1171 | case DVACT_DEACTIVATE: |
| 1172 | if_deactivate(&sc->sc_ethercom.ec_if); |
| 1173 | return 0; |
| 1174 | default: |
| 1175 | return EOPNOTSUPP; |
| 1176 | } |
| 1177 | } |
| 1178 | |
| 1179 | int |
| 1180 | cnw_detach(device_t self, int flags) |
| 1181 | { |
| 1182 | struct cnw_softc *sc = device_private(self); |
| 1183 | struct ifnet *ifp = &sc->sc_ethercom.ec_if; |
| 1184 | |
| 1185 | /* cnw_disable() checks IFF_RUNNING */ |
| 1186 | cnw_disable(sc); |
| 1187 | |
| 1188 | if ((sc->sc_resource & CNW_RES_NET) != 0) { |
| 1189 | ether_ifdetach(ifp); |
| 1190 | if_detach(ifp); |
| 1191 | } |
| 1192 | |
| 1193 | #ifndef MEMORY_MAPPED |
| 1194 | /* unmap and free our i/o windows */ |
| 1195 | if ((sc->sc_resource & CNW_RES_IO) != 0) { |
| 1196 | pcmcia_io_unmap(sc->sc_pf, sc->sc_iowin); |
| 1197 | pcmcia_io_free(sc->sc_pf, &sc->sc_pcioh); |
| 1198 | } |
| 1199 | #endif |
| 1200 | |
| 1201 | /* unmap and free our memory windows */ |
| 1202 | if ((sc->sc_resource & CNW_RES_MEM) != 0) { |
| 1203 | pcmcia_mem_unmap(sc->sc_pf, sc->sc_memwin); |
| 1204 | pcmcia_mem_free(sc->sc_pf, &sc->sc_pcmemh); |
| 1205 | } |
| 1206 | |
| 1207 | return (0); |
| 1208 | } |
| 1209 | |