1 /* [xirc2ps_cs.c wk 03.11.99] (1.40 1999/11/18 00:06:03) 2 * Xircom CreditCard Ethernet Adapter IIps driver 3 * Xircom Realport 10/100 (RE-100) driver 4 * 5 * This driver supports various Xircom CreditCard Ethernet adapters 6 * including the CE2, CE IIps, RE-10, CEM28, CEM33, CE33, CEM56, 7 * CE3-100, CE3B, RE-100, REM10BT, and REM56G-100. 8 * 9 * 2000-09-24 <psheer@icon.co.za> The Xircom CE3B-100 may not 10 * autodetect the media properly. In this case use the 11 * if_port=1 (for 10BaseT) or if_port=4 (for 100BaseT) options 12 * to force the media type. 13 * 14 * Written originally by Werner Koch based on David Hinds' skeleton of the 15 * PCMCIA driver. 16 * 17 * Copyright (c) 1997,1998 Werner Koch (dd9jn) 18 * 19 * This driver is free software; you can redistribute it and/or modify 20 * it under the terms of the GNU General Public License as published by 21 * the Free Software Foundation; either version 2 of the License, or 22 * (at your option) any later version. 23 * 24 * It is distributed in the hope that it will be useful, 25 * but WITHOUT ANY WARRANTY; without even the implied warranty of 26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 27 * GNU General Public License for more details. 28 * 29 * You should have received a copy of the GNU General Public License 30 * along with this program; if not, see <http://www.gnu.org/licenses/>. 31 * 32 * 33 * ALTERNATIVELY, this driver may be distributed under the terms of 34 * the following license, in which case the provisions of this license 35 * are required INSTEAD OF the GNU General Public License. (This clause 36 * is necessary due to a potential bad interaction between the GPL and 37 * the restrictions contained in a BSD-style copyright.) 38 * 39 * Redistribution and use in source and binary forms, with or without 40 * modification, are permitted provided that the following conditions 41 * are met: 42 * 1. Redistributions of source code must retain the above copyright 43 * notice, and the entire permission notice in its entirety, 44 * including the disclaimer of warranties. 45 * 2. Redistributions in binary form must reproduce the above copyright 46 * notice, this list of conditions and the following disclaimer in the 47 * documentation and/or other materials provided with the distribution. 48 * 3. The name of the author may not be used to endorse or promote 49 * products derived from this software without specific prior 50 * written permission. 51 * 52 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED 53 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 54 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 55 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 56 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 57 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 58 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 59 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 60 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 61 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 62 * OF THE POSSIBILITY OF SUCH DAMAGE. 63 */ 64 65 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 66 67 #include <linux/module.h> 68 #include <linux/kernel.h> 69 #include <linux/init.h> 70 #include <linux/ptrace.h> 71 #include <linux/slab.h> 72 #include <linux/string.h> 73 #include <linux/timer.h> 74 #include <linux/interrupt.h> 75 #include <linux/in.h> 76 #include <linux/delay.h> 77 #include <linux/ethtool.h> 78 #include <linux/netdevice.h> 79 #include <linux/etherdevice.h> 80 #include <linux/skbuff.h> 81 #include <linux/if_arp.h> 82 #include <linux/ioport.h> 83 #include <linux/bitops.h> 84 #include <linux/mii.h> 85 86 #include <pcmcia/cistpl.h> 87 #include <pcmcia/cisreg.h> 88 #include <pcmcia/ciscode.h> 89 90 #include <asm/io.h> 91 #include <linux/uaccess.h> 92 93 #ifndef MANFID_COMPAQ 94 #define MANFID_COMPAQ 0x0138 95 #define MANFID_COMPAQ2 0x0183 /* is this correct? */ 96 #endif 97 98 #include <pcmcia/ds.h> 99 100 /* Time in jiffies before concluding Tx hung */ 101 #define TX_TIMEOUT ((400*HZ)/1000) 102 103 /**************** 104 * Some constants used to access the hardware 105 */ 106 107 /* Register offsets and value constans */ 108 #define XIRCREG_CR 0 /* Command register (wr) */ 109 enum xirc_cr { 110 TransmitPacket = 0x01, 111 SoftReset = 0x02, 112 EnableIntr = 0x04, 113 ForceIntr = 0x08, 114 ClearTxFIFO = 0x10, 115 ClearRxOvrun = 0x20, 116 RestartTx = 0x40 117 }; 118 #define XIRCREG_ESR 0 /* Ethernet status register (rd) */ 119 enum xirc_esr { 120 FullPktRcvd = 0x01, /* full packet in receive buffer */ 121 PktRejected = 0x04, /* a packet has been rejected */ 122 TxPktPend = 0x08, /* TX Packet Pending */ 123 IncorPolarity = 0x10, 124 MediaSelect = 0x20 /* set if TP, clear if AUI */ 125 }; 126 #define XIRCREG_PR 1 /* Page Register select */ 127 #define XIRCREG_EDP 4 /* Ethernet Data Port Register */ 128 #define XIRCREG_ISR 6 /* Ethernet Interrupt Status Register */ 129 enum xirc_isr { 130 TxBufOvr = 0x01, /* TX Buffer Overflow */ 131 PktTxed = 0x02, /* Packet Transmitted */ 132 MACIntr = 0x04, /* MAC Interrupt occurred */ 133 TxResGrant = 0x08, /* Tx Reservation Granted */ 134 RxFullPkt = 0x20, /* Rx Full Packet */ 135 RxPktRej = 0x40, /* Rx Packet Rejected */ 136 ForcedIntr= 0x80 /* Forced Interrupt */ 137 }; 138 #define XIRCREG1_IMR0 12 /* Ethernet Interrupt Mask Register (on page 1)*/ 139 #define XIRCREG1_IMR1 13 140 #define XIRCREG0_TSO 8 /* Transmit Space Open Register (on page 0)*/ 141 #define XIRCREG0_TRS 10 /* Transmit reservation Size Register (page 0)*/ 142 #define XIRCREG0_DO 12 /* Data Offset Register (page 0) (wr) */ 143 #define XIRCREG0_RSR 12 /* Receive Status Register (page 0) (rd) */ 144 enum xirc_rsr { 145 PhyPkt = 0x01, /* set:physical packet, clear: multicast packet */ 146 BrdcstPkt = 0x02, /* set if it is a broadcast packet */ 147 PktTooLong = 0x04, /* set if packet length > 1518 */ 148 AlignErr = 0x10, /* incorrect CRC and last octet not complete */ 149 CRCErr = 0x20, /* incorrect CRC and last octet is complete */ 150 PktRxOk = 0x80 /* received ok */ 151 }; 152 #define XIRCREG0_PTR 13 /* packets transmitted register (rd) */ 153 #define XIRCREG0_RBC 14 /* receive byte count regsister (rd) */ 154 #define XIRCREG1_ECR 14 /* ethernet configurationn register */ 155 enum xirc_ecr { 156 FullDuplex = 0x04, /* enable full duplex mode */ 157 LongTPMode = 0x08, /* adjust for longer lengths of TP cable */ 158 DisablePolCor = 0x10,/* disable auto polarity correction */ 159 DisableLinkPulse = 0x20, /* disable link pulse generation */ 160 DisableAutoTx = 0x40, /* disable auto-transmit */ 161 }; 162 #define XIRCREG2_RBS 8 /* receive buffer start register */ 163 #define XIRCREG2_LED 10 /* LED Configuration register */ 164 /* values for the leds: Bits 2-0 for led 1 165 * 0 disabled Bits 5-3 for led 2 166 * 1 collision 167 * 2 noncollision 168 * 3 link_detected 169 * 4 incor_polarity 170 * 5 jabber 171 * 6 auto_assertion 172 * 7 rx_tx_activity 173 */ 174 #define XIRCREG2_MSR 12 /* Mohawk specific register */ 175 176 #define XIRCREG4_GPR0 8 /* General Purpose Register 0 */ 177 #define XIRCREG4_GPR1 9 /* General Purpose Register 1 */ 178 #define XIRCREG2_GPR2 13 /* General Purpose Register 2 (page2!)*/ 179 #define XIRCREG4_BOV 10 /* Bonding Version Register */ 180 #define XIRCREG4_LMA 12 /* Local Memory Address Register */ 181 #define XIRCREG4_LMD 14 /* Local Memory Data Port */ 182 /* MAC register can only by accessed with 8 bit operations */ 183 #define XIRCREG40_CMD0 8 /* Command Register (wr) */ 184 enum xirc_cmd { /* Commands */ 185 Transmit = 0x01, 186 EnableRecv = 0x04, 187 DisableRecv = 0x08, 188 Abort = 0x10, 189 Online = 0x20, 190 IntrAck = 0x40, 191 Offline = 0x80 192 }; 193 #define XIRCREG5_RHSA0 10 /* Rx Host Start Address */ 194 #define XIRCREG40_RXST0 9 /* Receive Status Register */ 195 #define XIRCREG40_TXST0 11 /* Transmit Status Register 0 */ 196 #define XIRCREG40_TXST1 12 /* Transmit Status Register 10 */ 197 #define XIRCREG40_RMASK0 13 /* Receive Mask Register */ 198 #define XIRCREG40_TMASK0 14 /* Transmit Mask Register 0 */ 199 #define XIRCREG40_TMASK1 15 /* Transmit Mask Register 0 */ 200 #define XIRCREG42_SWC0 8 /* Software Configuration 0 */ 201 #define XIRCREG42_SWC1 9 /* Software Configuration 1 */ 202 #define XIRCREG42_BOC 10 /* Back-Off Configuration */ 203 #define XIRCREG44_TDR0 8 /* Time Domain Reflectometry 0 */ 204 #define XIRCREG44_TDR1 9 /* Time Domain Reflectometry 1 */ 205 #define XIRCREG44_RXBC_LO 10 /* Rx Byte Count 0 (rd) */ 206 #define XIRCREG44_RXBC_HI 11 /* Rx Byte Count 1 (rd) */ 207 #define XIRCREG45_REV 15 /* Revision Register (rd) */ 208 #define XIRCREG50_IA 8 /* Individual Address (8-13) */ 209 210 static const char *if_names[] = { "Auto", "10BaseT", "10Base2", "AUI", "100BaseT" }; 211 212 /* card types */ 213 #define XIR_UNKNOWN 0 /* unknown: not supported */ 214 #define XIR_CE 1 /* (prodid 1) different hardware: not supported */ 215 #define XIR_CE2 2 /* (prodid 2) */ 216 #define XIR_CE3 3 /* (prodid 3) */ 217 #define XIR_CEM 4 /* (prodid 1) different hardware: not supported */ 218 #define XIR_CEM2 5 /* (prodid 2) */ 219 #define XIR_CEM3 6 /* (prodid 3) */ 220 #define XIR_CEM33 7 /* (prodid 4) */ 221 #define XIR_CEM56M 8 /* (prodid 5) */ 222 #define XIR_CEM56 9 /* (prodid 6) */ 223 #define XIR_CM28 10 /* (prodid 3) modem only: not supported here */ 224 #define XIR_CM33 11 /* (prodid 4) modem only: not supported here */ 225 #define XIR_CM56 12 /* (prodid 5) modem only: not supported here */ 226 #define XIR_CG 13 /* (prodid 1) GSM modem only: not supported */ 227 #define XIR_CBE 14 /* (prodid 1) cardbus ethernet: not supported */ 228 /*====================================================================*/ 229 230 /* Module parameters */ 231 232 MODULE_DESCRIPTION("Xircom PCMCIA ethernet driver"); 233 MODULE_LICENSE("Dual MPL/GPL"); 234 235 #define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0) 236 237 INT_MODULE_PARM(if_port, 0); 238 INT_MODULE_PARM(full_duplex, 0); 239 INT_MODULE_PARM(do_sound, 1); 240 INT_MODULE_PARM(lockup_hack, 0); /* anti lockup hack */ 241 242 /*====================================================================*/ 243 244 /* We do not process more than these number of bytes during one 245 * interrupt. (Of course we receive complete packets, so this is not 246 * an exact value). 247 * Something between 2000..22000; first value gives best interrupt latency, 248 * the second enables the usage of the complete on-chip buffer. We use the 249 * high value as the initial value. 250 */ 251 static unsigned maxrx_bytes = 22000; 252 253 /* MII management prototypes */ 254 static void mii_idle(unsigned int ioaddr); 255 static void mii_putbit(unsigned int ioaddr, unsigned data); 256 static int mii_getbit(unsigned int ioaddr); 257 static void mii_wbits(unsigned int ioaddr, unsigned data, int len); 258 static unsigned mii_rd(unsigned int ioaddr, u_char phyaddr, u_char phyreg); 259 static void mii_wr(unsigned int ioaddr, u_char phyaddr, u_char phyreg, 260 unsigned data, int len); 261 262 static int has_ce2_string(struct pcmcia_device * link); 263 static int xirc2ps_config(struct pcmcia_device * link); 264 static void xirc2ps_release(struct pcmcia_device * link); 265 static void xirc2ps_detach(struct pcmcia_device *p_dev); 266 267 static irqreturn_t xirc2ps_interrupt(int irq, void *dev_id); 268 269 struct local_info { 270 struct net_device *dev; 271 struct pcmcia_device *p_dev; 272 273 int card_type; 274 int probe_port; 275 int silicon; /* silicon revision. 0=old CE2, 1=Scipper, 4=Mohawk */ 276 int mohawk; /* a CE3 type card */ 277 int dingo; /* a CEM56 type card */ 278 int new_mii; /* has full 10baseT/100baseT MII */ 279 int modem; /* is a multi function card (i.e with a modem) */ 280 void __iomem *dingo_ccr; /* only used for CEM56 cards */ 281 unsigned last_ptr_value; /* last packets transmitted value */ 282 const char *manf_str; 283 struct work_struct tx_timeout_task; 284 }; 285 286 /**************** 287 * Some more prototypes 288 */ 289 static netdev_tx_t do_start_xmit(struct sk_buff *skb, 290 struct net_device *dev); 291 static void xirc_tx_timeout(struct net_device *dev, unsigned int txqueue); 292 static void xirc2ps_tx_timeout_task(struct work_struct *work); 293 static void set_addresses(struct net_device *dev); 294 static void set_multicast_list(struct net_device *dev); 295 static int set_card_type(struct pcmcia_device *link); 296 static int do_config(struct net_device *dev, struct ifmap *map); 297 static int do_open(struct net_device *dev); 298 static int do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 299 static const struct ethtool_ops netdev_ethtool_ops; 300 static void hardreset(struct net_device *dev); 301 static void do_reset(struct net_device *dev, int full); 302 static int init_mii(struct net_device *dev); 303 static void do_powerdown(struct net_device *dev); 304 static int do_stop(struct net_device *dev); 305 306 /*=============== Helper functions =========================*/ 307 #define SelectPage(pgnr) outb((pgnr), ioaddr + XIRCREG_PR) 308 #define GetByte(reg) ((unsigned)inb(ioaddr + (reg))) 309 #define GetWord(reg) ((unsigned)inw(ioaddr + (reg))) 310 #define PutByte(reg,value) outb((value), ioaddr+(reg)) 311 #define PutWord(reg,value) outw((value), ioaddr+(reg)) 312 313 /*====== Functions used for debugging =================================*/ 314 #if 0 /* reading regs may change system status */ 315 static void 316 PrintRegisters(struct net_device *dev) 317 { 318 unsigned int ioaddr = dev->base_addr; 319 320 if (pc_debug > 1) { 321 int i, page; 322 323 printk(KERN_DEBUG pr_fmt("Register common: ")); 324 for (i = 0; i < 8; i++) 325 pr_cont(" %2.2x", GetByte(i)); 326 pr_cont("\n"); 327 for (page = 0; page <= 8; page++) { 328 printk(KERN_DEBUG pr_fmt("Register page %2x: "), page); 329 SelectPage(page); 330 for (i = 8; i < 16; i++) 331 pr_cont(" %2.2x", GetByte(i)); 332 pr_cont("\n"); 333 } 334 for (page=0x40 ; page <= 0x5f; page++) { 335 if (page == 0x43 || (page >= 0x46 && page <= 0x4f) || 336 (page >= 0x51 && page <=0x5e)) 337 continue; 338 printk(KERN_DEBUG pr_fmt("Register page %2x: "), page); 339 SelectPage(page); 340 for (i = 8; i < 16; i++) 341 pr_cont(" %2.2x", GetByte(i)); 342 pr_cont("\n"); 343 } 344 } 345 } 346 #endif /* 0 */ 347 348 /*============== MII Management functions ===============*/ 349 350 /**************** 351 * Turn around for read 352 */ 353 static void 354 mii_idle(unsigned int ioaddr) 355 { 356 PutByte(XIRCREG2_GPR2, 0x04|0); /* drive MDCK low */ 357 udelay(1); 358 PutByte(XIRCREG2_GPR2, 0x04|1); /* and drive MDCK high */ 359 udelay(1); 360 } 361 362 /**************** 363 * Write a bit to MDI/O 364 */ 365 static void 366 mii_putbit(unsigned int ioaddr, unsigned data) 367 { 368 #if 1 369 if (data) { 370 PutByte(XIRCREG2_GPR2, 0x0c|2|0); /* set MDIO */ 371 udelay(1); 372 PutByte(XIRCREG2_GPR2, 0x0c|2|1); /* and drive MDCK high */ 373 udelay(1); 374 } else { 375 PutByte(XIRCREG2_GPR2, 0x0c|0|0); /* clear MDIO */ 376 udelay(1); 377 PutByte(XIRCREG2_GPR2, 0x0c|0|1); /* and drive MDCK high */ 378 udelay(1); 379 } 380 #else 381 if (data) { 382 PutWord(XIRCREG2_GPR2-1, 0x0e0e); 383 udelay(1); 384 PutWord(XIRCREG2_GPR2-1, 0x0f0f); 385 udelay(1); 386 } else { 387 PutWord(XIRCREG2_GPR2-1, 0x0c0c); 388 udelay(1); 389 PutWord(XIRCREG2_GPR2-1, 0x0d0d); 390 udelay(1); 391 } 392 #endif 393 } 394 395 /**************** 396 * Get a bit from MDI/O 397 */ 398 static int 399 mii_getbit(unsigned int ioaddr) 400 { 401 unsigned d; 402 403 PutByte(XIRCREG2_GPR2, 4|0); /* drive MDCK low */ 404 udelay(1); 405 d = GetByte(XIRCREG2_GPR2); /* read MDIO */ 406 PutByte(XIRCREG2_GPR2, 4|1); /* drive MDCK high again */ 407 udelay(1); 408 return d & 0x20; /* read MDIO */ 409 } 410 411 static void 412 mii_wbits(unsigned int ioaddr, unsigned data, int len) 413 { 414 unsigned m = 1 << (len-1); 415 for (; m; m >>= 1) 416 mii_putbit(ioaddr, data & m); 417 } 418 419 static unsigned 420 mii_rd(unsigned int ioaddr, u_char phyaddr, u_char phyreg) 421 { 422 int i; 423 unsigned data=0, m; 424 425 SelectPage(2); 426 for (i=0; i < 32; i++) /* 32 bit preamble */ 427 mii_putbit(ioaddr, 1); 428 mii_wbits(ioaddr, 0x06, 4); /* Start and opcode for read */ 429 mii_wbits(ioaddr, phyaddr, 5); /* PHY address to be accessed */ 430 mii_wbits(ioaddr, phyreg, 5); /* PHY register to read */ 431 mii_idle(ioaddr); /* turn around */ 432 mii_getbit(ioaddr); 433 434 for (m = 1<<15; m; m >>= 1) 435 if (mii_getbit(ioaddr)) 436 data |= m; 437 mii_idle(ioaddr); 438 return data; 439 } 440 441 static void 442 mii_wr(unsigned int ioaddr, u_char phyaddr, u_char phyreg, unsigned data, 443 int len) 444 { 445 int i; 446 447 SelectPage(2); 448 for (i=0; i < 32; i++) /* 32 bit preamble */ 449 mii_putbit(ioaddr, 1); 450 mii_wbits(ioaddr, 0x05, 4); /* Start and opcode for write */ 451 mii_wbits(ioaddr, phyaddr, 5); /* PHY address to be accessed */ 452 mii_wbits(ioaddr, phyreg, 5); /* PHY Register to write */ 453 mii_putbit(ioaddr, 1); /* turn around */ 454 mii_putbit(ioaddr, 0); 455 mii_wbits(ioaddr, data, len); /* And write the data */ 456 mii_idle(ioaddr); 457 } 458 459 /*============= Main bulk of functions =========================*/ 460 461 static const struct net_device_ops netdev_ops = { 462 .ndo_open = do_open, 463 .ndo_stop = do_stop, 464 .ndo_start_xmit = do_start_xmit, 465 .ndo_tx_timeout = xirc_tx_timeout, 466 .ndo_set_config = do_config, 467 .ndo_eth_ioctl = do_ioctl, 468 .ndo_set_rx_mode = set_multicast_list, 469 .ndo_set_mac_address = eth_mac_addr, 470 .ndo_validate_addr = eth_validate_addr, 471 }; 472 473 static int 474 xirc2ps_probe(struct pcmcia_device *link) 475 { 476 struct net_device *dev; 477 struct local_info *local; 478 479 dev_dbg(&link->dev, "attach()\n"); 480 481 /* Allocate the device structure */ 482 dev = alloc_etherdev(sizeof(struct local_info)); 483 if (!dev) 484 return -ENOMEM; 485 local = netdev_priv(dev); 486 local->dev = dev; 487 local->p_dev = link; 488 link->priv = dev; 489 490 /* General socket configuration */ 491 link->config_index = 1; 492 493 /* Fill in card specific entries */ 494 dev->netdev_ops = &netdev_ops; 495 dev->ethtool_ops = &netdev_ethtool_ops; 496 dev->watchdog_timeo = TX_TIMEOUT; 497 INIT_WORK(&local->tx_timeout_task, xirc2ps_tx_timeout_task); 498 499 return xirc2ps_config(link); 500 } /* xirc2ps_attach */ 501 502 static void 503 xirc2ps_detach(struct pcmcia_device *link) 504 { 505 struct net_device *dev = link->priv; 506 507 dev_dbg(&link->dev, "detach\n"); 508 509 unregister_netdev(dev); 510 511 xirc2ps_release(link); 512 513 free_netdev(dev); 514 } /* xirc2ps_detach */ 515 516 /**************** 517 * Detect the type of the card. s is the buffer with the data of tuple 0x20 518 * Returns: 0 := not supported 519 * mediaid=11 and prodid=47 520 * Media-Id bits: 521 * Ethernet 0x01 522 * Tokenring 0x02 523 * Arcnet 0x04 524 * Wireless 0x08 525 * Modem 0x10 526 * GSM only 0x20 527 * Prod-Id bits: 528 * Pocket 0x10 529 * External 0x20 530 * Creditcard 0x40 531 * Cardbus 0x80 532 * 533 */ 534 static int 535 set_card_type(struct pcmcia_device *link) 536 { 537 struct net_device *dev = link->priv; 538 struct local_info *local = netdev_priv(dev); 539 u8 *buf; 540 unsigned int cisrev, mediaid, prodid; 541 size_t len; 542 543 len = pcmcia_get_tuple(link, CISTPL_MANFID, &buf); 544 if (len < 5) { 545 dev_err(&link->dev, "invalid CIS -- sorry\n"); 546 return 0; 547 } 548 549 cisrev = buf[2]; 550 mediaid = buf[3]; 551 prodid = buf[4]; 552 553 dev_dbg(&link->dev, "cisrev=%02x mediaid=%02x prodid=%02x\n", 554 cisrev, mediaid, prodid); 555 556 local->mohawk = 0; 557 local->dingo = 0; 558 local->modem = 0; 559 local->card_type = XIR_UNKNOWN; 560 if (!(prodid & 0x40)) { 561 pr_notice("Oops: Not a creditcard\n"); 562 return 0; 563 } 564 if (!(mediaid & 0x01)) { 565 pr_notice("Not an Ethernet card\n"); 566 return 0; 567 } 568 if (mediaid & 0x10) { 569 local->modem = 1; 570 switch(prodid & 15) { 571 case 1: local->card_type = XIR_CEM ; break; 572 case 2: local->card_type = XIR_CEM2 ; break; 573 case 3: local->card_type = XIR_CEM3 ; break; 574 case 4: local->card_type = XIR_CEM33 ; break; 575 case 5: local->card_type = XIR_CEM56M; 576 local->mohawk = 1; 577 break; 578 case 6: 579 case 7: /* 7 is the RealPort 10/56 */ 580 local->card_type = XIR_CEM56 ; 581 local->mohawk = 1; 582 local->dingo = 1; 583 break; 584 } 585 } else { 586 switch(prodid & 15) { 587 case 1: local->card_type = has_ce2_string(link)? XIR_CE2 : XIR_CE ; 588 break; 589 case 2: local->card_type = XIR_CE2; break; 590 case 3: local->card_type = XIR_CE3; 591 local->mohawk = 1; 592 break; 593 } 594 } 595 if (local->card_type == XIR_CE || local->card_type == XIR_CEM) { 596 pr_notice("Sorry, this is an old CE card\n"); 597 return 0; 598 } 599 if (local->card_type == XIR_UNKNOWN) 600 pr_notice("unknown card (mediaid=%02x prodid=%02x)\n", mediaid, prodid); 601 602 return 1; 603 } 604 605 /**************** 606 * There are some CE2 cards out which claim to be a CE card. 607 * This function looks for a "CE2" in the 3rd version field. 608 * Returns: true if this is a CE2 609 */ 610 static int 611 has_ce2_string(struct pcmcia_device * p_dev) 612 { 613 if (p_dev->prod_id[2] && strstr(p_dev->prod_id[2], "CE2")) 614 return 1; 615 return 0; 616 } 617 618 static int 619 xirc2ps_config_modem(struct pcmcia_device *p_dev, void *priv_data) 620 { 621 unsigned int ioaddr; 622 623 if ((p_dev->resource[0]->start & 0xf) == 8) 624 return -ENODEV; 625 626 p_dev->resource[0]->end = 16; 627 p_dev->resource[1]->end = 8; 628 p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH; 629 p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_16; 630 p_dev->resource[1]->flags &= ~IO_DATA_PATH_WIDTH; 631 p_dev->resource[1]->flags |= IO_DATA_PATH_WIDTH_8; 632 p_dev->io_lines = 10; 633 634 p_dev->resource[1]->start = p_dev->resource[0]->start; 635 for (ioaddr = 0x300; ioaddr < 0x400; ioaddr += 0x10) { 636 p_dev->resource[0]->start = ioaddr; 637 if (!pcmcia_request_io(p_dev)) 638 return 0; 639 } 640 return -ENODEV; 641 } 642 643 static int 644 xirc2ps_config_check(struct pcmcia_device *p_dev, void *priv_data) 645 { 646 int *pass = priv_data; 647 resource_size_t tmp = p_dev->resource[1]->start; 648 649 tmp += (*pass ? (p_dev->config_index & 0x20 ? -24 : 8) 650 : (p_dev->config_index & 0x20 ? 8 : -24)); 651 652 if ((p_dev->resource[0]->start & 0xf) == 8) 653 return -ENODEV; 654 655 p_dev->resource[0]->end = 18; 656 p_dev->resource[1]->end = 8; 657 p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH; 658 p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_16; 659 p_dev->resource[1]->flags &= ~IO_DATA_PATH_WIDTH; 660 p_dev->resource[1]->flags |= IO_DATA_PATH_WIDTH_8; 661 p_dev->io_lines = 10; 662 663 p_dev->resource[1]->start = p_dev->resource[0]->start; 664 p_dev->resource[0]->start = tmp; 665 return pcmcia_request_io(p_dev); 666 } 667 668 669 static int pcmcia_get_mac_ce(struct pcmcia_device *p_dev, 670 tuple_t *tuple, 671 void *priv) 672 { 673 struct net_device *dev = priv; 674 675 if (tuple->TupleDataLen != 13) 676 return -EINVAL; 677 if ((tuple->TupleData[0] != 2) || (tuple->TupleData[1] != 1) || 678 (tuple->TupleData[2] != 6)) 679 return -EINVAL; 680 /* another try (James Lehmer's CE2 version 4.1)*/ 681 dev_addr_mod(dev, 2, &tuple->TupleData[2], 4); 682 return 0; 683 }; 684 685 686 static int 687 xirc2ps_config(struct pcmcia_device * link) 688 { 689 struct net_device *dev = link->priv; 690 struct local_info *local = netdev_priv(dev); 691 unsigned int ioaddr; 692 int err; 693 u8 *buf; 694 size_t len; 695 696 local->dingo_ccr = NULL; 697 698 dev_dbg(&link->dev, "config\n"); 699 700 /* Is this a valid card */ 701 if (link->has_manf_id == 0) { 702 pr_notice("manfid not found in CIS\n"); 703 goto failure; 704 } 705 706 switch (link->manf_id) { 707 case MANFID_XIRCOM: 708 local->manf_str = "Xircom"; 709 break; 710 case MANFID_ACCTON: 711 local->manf_str = "Accton"; 712 break; 713 case MANFID_COMPAQ: 714 case MANFID_COMPAQ2: 715 local->manf_str = "Compaq"; 716 break; 717 case MANFID_INTEL: 718 local->manf_str = "Intel"; 719 break; 720 case MANFID_TOSHIBA: 721 local->manf_str = "Toshiba"; 722 break; 723 default: 724 pr_notice("Unknown Card Manufacturer ID: 0x%04x\n", 725 (unsigned)link->manf_id); 726 goto failure; 727 } 728 dev_dbg(&link->dev, "found %s card\n", local->manf_str); 729 730 if (!set_card_type(link)) { 731 pr_notice("this card is not supported\n"); 732 goto failure; 733 } 734 735 /* get the ethernet address from the CIS */ 736 err = pcmcia_get_mac_from_cis(link, dev); 737 738 /* not found: try to get the node-id from tuple 0x89 */ 739 if (err) { 740 len = pcmcia_get_tuple(link, 0x89, &buf); 741 /* data layout looks like tuple 0x22 */ 742 if (buf && len == 8) { 743 if (*buf == CISTPL_FUNCE_LAN_NODE_ID) 744 dev_addr_mod(dev, 2, &buf[2], 4); 745 else 746 err = -1; 747 } 748 kfree(buf); 749 } 750 751 if (err) 752 err = pcmcia_loop_tuple(link, CISTPL_FUNCE, pcmcia_get_mac_ce, dev); 753 754 if (err) { 755 pr_notice("node-id not found in CIS\n"); 756 goto failure; 757 } 758 759 if (local->modem) { 760 int pass; 761 link->config_flags |= CONF_AUTO_SET_IO; 762 763 if (local->dingo) { 764 /* Take the Modem IO port from the CIS and scan for a free 765 * Ethernet port */ 766 if (!pcmcia_loop_config(link, xirc2ps_config_modem, NULL)) 767 goto port_found; 768 } else { 769 /* We do 2 passes here: The first one uses the regular mapping and 770 * the second tries again, thereby considering that the 32 ports are 771 * mirrored every 32 bytes. Actually we use a mirrored port for 772 * the Mako if (on the first pass) the COR bit 5 is set. 773 */ 774 for (pass=0; pass < 2; pass++) 775 if (!pcmcia_loop_config(link, xirc2ps_config_check, 776 &pass)) 777 goto port_found; 778 /* if special option: 779 * try to configure as Ethernet only. 780 * .... */ 781 } 782 pr_notice("no ports available\n"); 783 } else { 784 link->io_lines = 10; 785 link->resource[0]->end = 16; 786 link->resource[0]->flags |= IO_DATA_PATH_WIDTH_16; 787 for (ioaddr = 0x300; ioaddr < 0x400; ioaddr += 0x10) { 788 link->resource[0]->start = ioaddr; 789 if (!(err = pcmcia_request_io(link))) 790 goto port_found; 791 } 792 link->resource[0]->start = 0; /* let CS decide */ 793 if ((err = pcmcia_request_io(link))) 794 goto config_error; 795 } 796 port_found: 797 798 /**************** 799 * Now allocate an interrupt line. Note that this does not 800 * actually assign a handler to the interrupt. 801 */ 802 if ((err=pcmcia_request_irq(link, xirc2ps_interrupt))) 803 goto config_error; 804 805 link->config_flags |= CONF_ENABLE_IRQ; 806 if (do_sound) 807 link->config_flags |= CONF_ENABLE_SPKR; 808 809 if ((err = pcmcia_enable_device(link))) 810 goto config_error; 811 812 if (local->dingo) { 813 /* Reset the modem's BAR to the correct value 814 * This is necessary because in the RequestConfiguration call, 815 * the base address of the ethernet port (BasePort1) is written 816 * to the BAR registers of the modem. 817 */ 818 err = pcmcia_write_config_byte(link, CISREG_IOBASE_0, (u8) 819 link->resource[1]->start & 0xff); 820 if (err) 821 goto config_error; 822 823 err = pcmcia_write_config_byte(link, CISREG_IOBASE_1, 824 (link->resource[1]->start >> 8) & 0xff); 825 if (err) 826 goto config_error; 827 828 /* There is no config entry for the Ethernet part which 829 * is at 0x0800. So we allocate a window into the attribute 830 * memory and write direct to the CIS registers 831 */ 832 link->resource[2]->flags = WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_AM | 833 WIN_ENABLE; 834 link->resource[2]->start = link->resource[2]->end = 0; 835 if ((err = pcmcia_request_window(link, link->resource[2], 0))) 836 goto config_error; 837 838 local->dingo_ccr = ioremap(link->resource[2]->start, 0x1000) + 0x0800; 839 if ((err = pcmcia_map_mem_page(link, link->resource[2], 0))) 840 goto config_error; 841 842 /* Setup the CCRs; there are no infos in the CIS about the Ethernet 843 * part. 844 */ 845 writeb(0x47, local->dingo_ccr + CISREG_COR); 846 ioaddr = link->resource[0]->start; 847 writeb(ioaddr & 0xff , local->dingo_ccr + CISREG_IOBASE_0); 848 writeb((ioaddr >> 8)&0xff , local->dingo_ccr + CISREG_IOBASE_1); 849 850 #if 0 851 { 852 u_char tmp; 853 pr_info("ECOR:"); 854 for (i=0; i < 7; i++) { 855 tmp = readb(local->dingo_ccr + i*2); 856 pr_cont(" %02x", tmp); 857 } 858 pr_cont("\n"); 859 pr_info("DCOR:"); 860 for (i=0; i < 4; i++) { 861 tmp = readb(local->dingo_ccr + 0x20 + i*2); 862 pr_cont(" %02x", tmp); 863 } 864 pr_cont("\n"); 865 pr_info("SCOR:"); 866 for (i=0; i < 10; i++) { 867 tmp = readb(local->dingo_ccr + 0x40 + i*2); 868 pr_cont(" %02x", tmp); 869 } 870 pr_cont("\n"); 871 } 872 #endif 873 874 writeb(0x01, local->dingo_ccr + 0x20); 875 writeb(0x0c, local->dingo_ccr + 0x22); 876 writeb(0x00, local->dingo_ccr + 0x24); 877 writeb(0x00, local->dingo_ccr + 0x26); 878 writeb(0x00, local->dingo_ccr + 0x28); 879 } 880 881 /* The if_port symbol can be set when the module is loaded */ 882 local->probe_port=0; 883 if (!if_port) { 884 local->probe_port = dev->if_port = 1; 885 } else if ((if_port >= 1 && if_port <= 2) || 886 (local->mohawk && if_port==4)) 887 dev->if_port = if_port; 888 else 889 pr_notice("invalid if_port requested\n"); 890 891 /* we can now register the device with the net subsystem */ 892 dev->irq = link->irq; 893 dev->base_addr = link->resource[0]->start; 894 895 if (local->dingo) 896 do_reset(dev, 1); /* a kludge to make the cem56 work */ 897 898 SET_NETDEV_DEV(dev, &link->dev); 899 900 if ((err=register_netdev(dev))) { 901 pr_notice("register_netdev() failed\n"); 902 goto config_error; 903 } 904 905 /* give some infos about the hardware */ 906 netdev_info(dev, "%s: port %#3lx, irq %d, hwaddr %pM\n", 907 local->manf_str, (u_long)dev->base_addr, (int)dev->irq, 908 dev->dev_addr); 909 910 return 0; 911 912 config_error: 913 xirc2ps_release(link); 914 return -ENODEV; 915 916 failure: 917 return -ENODEV; 918 } /* xirc2ps_config */ 919 920 static void 921 xirc2ps_release(struct pcmcia_device *link) 922 { 923 dev_dbg(&link->dev, "release\n"); 924 925 if (link->resource[2]->end) { 926 struct net_device *dev = link->priv; 927 struct local_info *local = netdev_priv(dev); 928 if (local->dingo) 929 iounmap(local->dingo_ccr - 0x0800); 930 } 931 pcmcia_disable_device(link); 932 } /* xirc2ps_release */ 933 934 /*====================================================================*/ 935 936 937 static int xirc2ps_suspend(struct pcmcia_device *link) 938 { 939 struct net_device *dev = link->priv; 940 941 if (link->open) { 942 netif_device_detach(dev); 943 do_powerdown(dev); 944 } 945 946 return 0; 947 } 948 949 static int xirc2ps_resume(struct pcmcia_device *link) 950 { 951 struct net_device *dev = link->priv; 952 953 if (link->open) { 954 do_reset(dev,1); 955 netif_device_attach(dev); 956 } 957 958 return 0; 959 } 960 961 962 /*====================================================================*/ 963 964 /**************** 965 * This is the Interrupt service route. 966 */ 967 static irqreturn_t 968 xirc2ps_interrupt(int irq, void *dev_id) 969 { 970 struct net_device *dev = (struct net_device *)dev_id; 971 struct local_info *lp = netdev_priv(dev); 972 unsigned int ioaddr; 973 u_char saved_page; 974 unsigned bytes_rcvd; 975 unsigned int_status, eth_status, rx_status, tx_status; 976 unsigned rsr, pktlen; 977 ulong start_ticks = jiffies; /* fixme: jiffies rollover every 497 days 978 * is this something to worry about? 979 * -- on a laptop? 980 */ 981 982 if (!netif_device_present(dev)) 983 return IRQ_HANDLED; 984 985 ioaddr = dev->base_addr; 986 if (lp->mohawk) { /* must disable the interrupt */ 987 PutByte(XIRCREG_CR, 0); 988 } 989 990 pr_debug("%s: interrupt %d at %#x.\n", dev->name, irq, ioaddr); 991 992 saved_page = GetByte(XIRCREG_PR); 993 /* Read the ISR to see whats the cause for the interrupt. 994 * This also clears the interrupt flags on CE2 cards 995 */ 996 int_status = GetByte(XIRCREG_ISR); 997 bytes_rcvd = 0; 998 loop_entry: 999 if (int_status == 0xff) { /* card may be ejected */ 1000 pr_debug("%s: interrupt %d for dead card\n", dev->name, irq); 1001 goto leave; 1002 } 1003 eth_status = GetByte(XIRCREG_ESR); 1004 1005 SelectPage(0x40); 1006 rx_status = GetByte(XIRCREG40_RXST0); 1007 PutByte(XIRCREG40_RXST0, (~rx_status & 0xff)); 1008 tx_status = GetByte(XIRCREG40_TXST0); 1009 tx_status |= GetByte(XIRCREG40_TXST1) << 8; 1010 PutByte(XIRCREG40_TXST0, 0); 1011 PutByte(XIRCREG40_TXST1, 0); 1012 1013 pr_debug("%s: ISR=%#2.2x ESR=%#2.2x RSR=%#2.2x TSR=%#4.4x\n", 1014 dev->name, int_status, eth_status, rx_status, tx_status); 1015 1016 /***** receive section ******/ 1017 SelectPage(0); 1018 while (eth_status & FullPktRcvd) { 1019 rsr = GetByte(XIRCREG0_RSR); 1020 if (bytes_rcvd > maxrx_bytes && (rsr & PktRxOk)) { 1021 /* too many bytes received during this int, drop the rest of the 1022 * packets */ 1023 dev->stats.rx_dropped++; 1024 pr_debug("%s: RX drop, too much done\n", dev->name); 1025 } else if (rsr & PktRxOk) { 1026 struct sk_buff *skb; 1027 1028 pktlen = GetWord(XIRCREG0_RBC); 1029 bytes_rcvd += pktlen; 1030 1031 pr_debug("rsr=%#02x packet_length=%u\n", rsr, pktlen); 1032 1033 /* 1 extra so we can use insw */ 1034 skb = netdev_alloc_skb(dev, pktlen + 3); 1035 if (!skb) { 1036 dev->stats.rx_dropped++; 1037 } else { /* okay get the packet */ 1038 skb_reserve(skb, 2); 1039 if (lp->silicon == 0 ) { /* work around a hardware bug */ 1040 unsigned rhsa; /* receive start address */ 1041 1042 SelectPage(5); 1043 rhsa = GetWord(XIRCREG5_RHSA0); 1044 SelectPage(0); 1045 rhsa += 3; /* skip control infos */ 1046 if (rhsa >= 0x8000) 1047 rhsa = 0; 1048 if (rhsa + pktlen > 0x8000) { 1049 unsigned i; 1050 u_char *buf = skb_put(skb, pktlen); 1051 for (i=0; i < pktlen ; i++, rhsa++) { 1052 buf[i] = GetByte(XIRCREG_EDP); 1053 if (rhsa == 0x8000) { 1054 rhsa = 0; 1055 i--; 1056 } 1057 } 1058 } else { 1059 insw(ioaddr+XIRCREG_EDP, 1060 skb_put(skb, pktlen), (pktlen+1)>>1); 1061 } 1062 } 1063 #if 0 1064 else if (lp->mohawk) { 1065 /* To use this 32 bit access we should use 1066 * a manual optimized loop 1067 * Also the words are swapped, we can get more 1068 * performance by using 32 bit access and swapping 1069 * the words in a register. Will need this for cardbus 1070 * 1071 * Note: don't forget to change the ALLOC_SKB to .. +3 1072 */ 1073 unsigned i; 1074 u_long *p = skb_put(skb, pktlen); 1075 register u_long a; 1076 unsigned int edpreg = ioaddr+XIRCREG_EDP-2; 1077 for (i=0; i < len ; i += 4, p++) { 1078 a = inl(edpreg); 1079 __asm__("rorl $16,%0\n\t" 1080 :"=q" (a) 1081 : "0" (a)); 1082 *p = a; 1083 } 1084 } 1085 #endif 1086 else { 1087 insw(ioaddr+XIRCREG_EDP, skb_put(skb, pktlen), 1088 (pktlen+1)>>1); 1089 } 1090 skb->protocol = eth_type_trans(skb, dev); 1091 netif_rx(skb); 1092 dev->stats.rx_packets++; 1093 dev->stats.rx_bytes += pktlen; 1094 if (!(rsr & PhyPkt)) 1095 dev->stats.multicast++; 1096 } 1097 } else { /* bad packet */ 1098 pr_debug("rsr=%#02x\n", rsr); 1099 } 1100 if (rsr & PktTooLong) { 1101 dev->stats.rx_frame_errors++; 1102 pr_debug("%s: Packet too long\n", dev->name); 1103 } 1104 if (rsr & CRCErr) { 1105 dev->stats.rx_crc_errors++; 1106 pr_debug("%s: CRC error\n", dev->name); 1107 } 1108 if (rsr & AlignErr) { 1109 dev->stats.rx_fifo_errors++; /* okay ? */ 1110 pr_debug("%s: Alignment error\n", dev->name); 1111 } 1112 1113 /* clear the received/dropped/error packet */ 1114 PutWord(XIRCREG0_DO, 0x8000); /* issue cmd: skip_rx_packet */ 1115 1116 /* get the new ethernet status */ 1117 eth_status = GetByte(XIRCREG_ESR); 1118 } 1119 if (rx_status & 0x10) { /* Receive overrun */ 1120 dev->stats.rx_over_errors++; 1121 PutByte(XIRCREG_CR, ClearRxOvrun); 1122 pr_debug("receive overrun cleared\n"); 1123 } 1124 1125 /***** transmit section ******/ 1126 if (int_status & PktTxed) { 1127 unsigned n, nn; 1128 1129 n = lp->last_ptr_value; 1130 nn = GetByte(XIRCREG0_PTR); 1131 lp->last_ptr_value = nn; 1132 if (nn < n) /* rollover */ 1133 dev->stats.tx_packets += 256 - n; 1134 else if (n == nn) { /* happens sometimes - don't know why */ 1135 pr_debug("PTR not changed?\n"); 1136 } else 1137 dev->stats.tx_packets += lp->last_ptr_value - n; 1138 netif_wake_queue(dev); 1139 } 1140 if (tx_status & 0x0002) { /* Excessive collisions */ 1141 pr_debug("tx restarted due to excessive collisions\n"); 1142 PutByte(XIRCREG_CR, RestartTx); /* restart transmitter process */ 1143 } 1144 if (tx_status & 0x0040) 1145 dev->stats.tx_aborted_errors++; 1146 1147 /* recalculate our work chunk so that we limit the duration of this 1148 * ISR to about 1/10 of a second. 1149 * Calculate only if we received a reasonable amount of bytes. 1150 */ 1151 if (bytes_rcvd > 1000) { 1152 u_long duration = jiffies - start_ticks; 1153 1154 if (duration >= HZ/10) { /* if more than about 1/10 second */ 1155 maxrx_bytes = (bytes_rcvd * (HZ/10)) / duration; 1156 if (maxrx_bytes < 2000) 1157 maxrx_bytes = 2000; 1158 else if (maxrx_bytes > 22000) 1159 maxrx_bytes = 22000; 1160 pr_debug("set maxrx=%u (rcvd=%u ticks=%lu)\n", 1161 maxrx_bytes, bytes_rcvd, duration); 1162 } else if (!duration && maxrx_bytes < 22000) { 1163 /* now much faster */ 1164 maxrx_bytes += 2000; 1165 if (maxrx_bytes > 22000) 1166 maxrx_bytes = 22000; 1167 pr_debug("set maxrx=%u\n", maxrx_bytes); 1168 } 1169 } 1170 1171 leave: 1172 if (lockup_hack) { 1173 if (int_status != 0xff && (int_status = GetByte(XIRCREG_ISR)) != 0) 1174 goto loop_entry; 1175 } 1176 SelectPage(saved_page); 1177 PutByte(XIRCREG_CR, EnableIntr); /* re-enable interrupts */ 1178 /* Instead of dropping packets during a receive, we could 1179 * force an interrupt with this command: 1180 * PutByte(XIRCREG_CR, EnableIntr|ForceIntr); 1181 */ 1182 return IRQ_HANDLED; 1183 } /* xirc2ps_interrupt */ 1184 1185 /*====================================================================*/ 1186 1187 static void 1188 xirc2ps_tx_timeout_task(struct work_struct *work) 1189 { 1190 struct local_info *local = 1191 container_of(work, struct local_info, tx_timeout_task); 1192 struct net_device *dev = local->dev; 1193 /* reset the card */ 1194 do_reset(dev,1); 1195 netif_trans_update(dev); /* prevent tx timeout */ 1196 netif_wake_queue(dev); 1197 } 1198 1199 static void 1200 xirc_tx_timeout(struct net_device *dev, unsigned int txqueue) 1201 { 1202 struct local_info *lp = netdev_priv(dev); 1203 dev->stats.tx_errors++; 1204 netdev_notice(dev, "transmit timed out\n"); 1205 schedule_work(&lp->tx_timeout_task); 1206 } 1207 1208 static netdev_tx_t 1209 do_start_xmit(struct sk_buff *skb, struct net_device *dev) 1210 { 1211 struct local_info *lp = netdev_priv(dev); 1212 unsigned int ioaddr = dev->base_addr; 1213 int okay; 1214 unsigned freespace; 1215 unsigned pktlen = skb->len; 1216 1217 pr_debug("do_start_xmit(skb=%p, dev=%p) len=%u\n", 1218 skb, dev, pktlen); 1219 1220 1221 /* adjust the packet length to min. required 1222 * and hope that the buffer is large enough 1223 * to provide some random data. 1224 * fixme: For Mohawk we can change this by sending 1225 * a larger packetlen than we actually have; the chip will 1226 * pad this in his buffer with random bytes 1227 */ 1228 if (pktlen < ETH_ZLEN) 1229 { 1230 if (skb_padto(skb, ETH_ZLEN)) 1231 return NETDEV_TX_OK; 1232 pktlen = ETH_ZLEN; 1233 } 1234 1235 netif_stop_queue(dev); 1236 SelectPage(0); 1237 PutWord(XIRCREG0_TRS, (u_short)pktlen+2); 1238 freespace = GetWord(XIRCREG0_TSO); 1239 okay = freespace & 0x8000; 1240 freespace &= 0x7fff; 1241 /* TRS doesn't work - (indeed it is eliminated with sil-rev 1) */ 1242 okay = pktlen +2 < freespace; 1243 pr_debug("%s: avail. tx space=%u%s\n", 1244 dev->name, freespace, okay ? " (okay)":" (not enough)"); 1245 if (!okay) { /* not enough space */ 1246 return NETDEV_TX_BUSY; /* upper layer may decide to requeue this packet */ 1247 } 1248 /* send the packet */ 1249 PutWord(XIRCREG_EDP, (u_short)pktlen); 1250 outsw(ioaddr+XIRCREG_EDP, skb->data, pktlen>>1); 1251 if (pktlen & 1) 1252 PutByte(XIRCREG_EDP, skb->data[pktlen-1]); 1253 1254 if (lp->mohawk) 1255 PutByte(XIRCREG_CR, TransmitPacket|EnableIntr); 1256 1257 dev_kfree_skb (skb); 1258 dev->stats.tx_bytes += pktlen; 1259 netif_start_queue(dev); 1260 return NETDEV_TX_OK; 1261 } 1262 1263 struct set_address_info { 1264 int reg_nr; 1265 int page_nr; 1266 int mohawk; 1267 unsigned int ioaddr; 1268 }; 1269 1270 static void set_address(struct set_address_info *sa_info, const char *addr) 1271 { 1272 unsigned int ioaddr = sa_info->ioaddr; 1273 int i; 1274 1275 for (i = 0; i < 6; i++) { 1276 if (sa_info->reg_nr > 15) { 1277 sa_info->reg_nr = 8; 1278 sa_info->page_nr++; 1279 SelectPage(sa_info->page_nr); 1280 } 1281 if (sa_info->mohawk) 1282 PutByte(sa_info->reg_nr++, addr[5 - i]); 1283 else 1284 PutByte(sa_info->reg_nr++, addr[i]); 1285 } 1286 } 1287 1288 /**************** 1289 * Set all addresses: This first one is the individual address, 1290 * the next 9 addresses are taken from the multicast list and 1291 * the rest is filled with the individual address. 1292 */ 1293 static void set_addresses(struct net_device *dev) 1294 { 1295 unsigned int ioaddr = dev->base_addr; 1296 struct local_info *lp = netdev_priv(dev); 1297 struct netdev_hw_addr *ha; 1298 struct set_address_info sa_info; 1299 int i; 1300 1301 /* 1302 * Setup the info structure so that by first set_address call it will do 1303 * SelectPage with the right page number. Hence these ones here. 1304 */ 1305 sa_info.reg_nr = 15 + 1; 1306 sa_info.page_nr = 0x50 - 1; 1307 sa_info.mohawk = lp->mohawk; 1308 sa_info.ioaddr = ioaddr; 1309 1310 set_address(&sa_info, dev->dev_addr); 1311 i = 0; 1312 netdev_for_each_mc_addr(ha, dev) { 1313 if (i++ == 9) 1314 break; 1315 set_address(&sa_info, ha->addr); 1316 } 1317 while (i++ < 9) 1318 set_address(&sa_info, dev->dev_addr); 1319 SelectPage(0); 1320 } 1321 1322 /**************** 1323 * Set or clear the multicast filter for this adaptor. 1324 * We can filter up to 9 addresses, if more are requested we set 1325 * multicast promiscuous mode. 1326 */ 1327 1328 static void 1329 set_multicast_list(struct net_device *dev) 1330 { 1331 unsigned int ioaddr = dev->base_addr; 1332 unsigned value; 1333 1334 SelectPage(0x42); 1335 value = GetByte(XIRCREG42_SWC1) & 0xC0; 1336 1337 if (dev->flags & IFF_PROMISC) { /* snoop */ 1338 PutByte(XIRCREG42_SWC1, value | 0x06); /* set MPE and PME */ 1339 } else if (netdev_mc_count(dev) > 9 || (dev->flags & IFF_ALLMULTI)) { 1340 PutByte(XIRCREG42_SWC1, value | 0x02); /* set MPE */ 1341 } else if (!netdev_mc_empty(dev)) { 1342 /* the chip can filter 9 addresses perfectly */ 1343 PutByte(XIRCREG42_SWC1, value | 0x01); 1344 SelectPage(0x40); 1345 PutByte(XIRCREG40_CMD0, Offline); 1346 set_addresses(dev); 1347 SelectPage(0x40); 1348 PutByte(XIRCREG40_CMD0, EnableRecv | Online); 1349 } else { /* standard usage */ 1350 PutByte(XIRCREG42_SWC1, value | 0x00); 1351 } 1352 SelectPage(0); 1353 } 1354 1355 static int 1356 do_config(struct net_device *dev, struct ifmap *map) 1357 { 1358 struct local_info *local = netdev_priv(dev); 1359 1360 pr_debug("do_config(%p)\n", dev); 1361 if (map->port != 255 && map->port != dev->if_port) { 1362 if (map->port > 4) 1363 return -EINVAL; 1364 if (!map->port) { 1365 local->probe_port = 1; 1366 dev->if_port = 1; 1367 } else { 1368 local->probe_port = 0; 1369 dev->if_port = map->port; 1370 } 1371 netdev_info(dev, "switching to %s port\n", if_names[dev->if_port]); 1372 do_reset(dev,1); /* not the fine way :-) */ 1373 } 1374 return 0; 1375 } 1376 1377 /**************** 1378 * Open the driver 1379 */ 1380 static int 1381 do_open(struct net_device *dev) 1382 { 1383 struct local_info *lp = netdev_priv(dev); 1384 struct pcmcia_device *link = lp->p_dev; 1385 1386 dev_dbg(&link->dev, "do_open(%p)\n", dev); 1387 1388 /* Check that the PCMCIA card is still here. */ 1389 /* Physical device present signature. */ 1390 if (!pcmcia_dev_present(link)) 1391 return -ENODEV; 1392 1393 /* okay */ 1394 link->open++; 1395 1396 netif_start_queue(dev); 1397 do_reset(dev,1); 1398 1399 return 0; 1400 } 1401 1402 static void netdev_get_drvinfo(struct net_device *dev, 1403 struct ethtool_drvinfo *info) 1404 { 1405 strlcpy(info->driver, "xirc2ps_cs", sizeof(info->driver)); 1406 snprintf(info->bus_info, sizeof(info->bus_info), "PCMCIA 0x%lx", 1407 dev->base_addr); 1408 } 1409 1410 static const struct ethtool_ops netdev_ethtool_ops = { 1411 .get_drvinfo = netdev_get_drvinfo, 1412 }; 1413 1414 static int 1415 do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) 1416 { 1417 struct local_info *local = netdev_priv(dev); 1418 unsigned int ioaddr = dev->base_addr; 1419 struct mii_ioctl_data *data = if_mii(rq); 1420 1421 pr_debug("%s: ioctl(%-.6s, %#04x) %04x %04x %04x %04x\n", 1422 dev->name, rq->ifr_ifrn.ifrn_name, cmd, 1423 data->phy_id, data->reg_num, data->val_in, data->val_out); 1424 1425 if (!local->mohawk) 1426 return -EOPNOTSUPP; 1427 1428 switch(cmd) { 1429 case SIOCGMIIPHY: /* Get the address of the PHY in use. */ 1430 data->phy_id = 0; /* we have only this address */ 1431 fallthrough; 1432 case SIOCGMIIREG: /* Read the specified MII register. */ 1433 data->val_out = mii_rd(ioaddr, data->phy_id & 0x1f, 1434 data->reg_num & 0x1f); 1435 break; 1436 case SIOCSMIIREG: /* Write the specified MII register */ 1437 mii_wr(ioaddr, data->phy_id & 0x1f, data->reg_num & 0x1f, data->val_in, 1438 16); 1439 break; 1440 default: 1441 return -EOPNOTSUPP; 1442 } 1443 return 0; 1444 } 1445 1446 static void 1447 hardreset(struct net_device *dev) 1448 { 1449 struct local_info *local = netdev_priv(dev); 1450 unsigned int ioaddr = dev->base_addr; 1451 1452 SelectPage(4); 1453 udelay(1); 1454 PutByte(XIRCREG4_GPR1, 0); /* clear bit 0: power down */ 1455 msleep(40); /* wait 40 msec */ 1456 if (local->mohawk) 1457 PutByte(XIRCREG4_GPR1, 1); /* set bit 0: power up */ 1458 else 1459 PutByte(XIRCREG4_GPR1, 1 | 4); /* set bit 0: power up, bit 2: AIC */ 1460 msleep(20); /* wait 20 msec */ 1461 } 1462 1463 static void 1464 do_reset(struct net_device *dev, int full) 1465 { 1466 struct local_info *local = netdev_priv(dev); 1467 unsigned int ioaddr = dev->base_addr; 1468 unsigned value; 1469 1470 pr_debug("%s: do_reset(%p,%d)\n", dev->name, dev, full); 1471 1472 hardreset(dev); 1473 PutByte(XIRCREG_CR, SoftReset); /* set */ 1474 msleep(20); /* wait 20 msec */ 1475 PutByte(XIRCREG_CR, 0); /* clear */ 1476 msleep(40); /* wait 40 msec */ 1477 if (local->mohawk) { 1478 SelectPage(4); 1479 /* set pin GP1 and GP2 to output (0x0c) 1480 * set GP1 to low to power up the ML6692 (0x00) 1481 * set GP2 to high to power up the 10Mhz chip (0x02) 1482 */ 1483 PutByte(XIRCREG4_GPR0, 0x0e); 1484 } 1485 1486 /* give the circuits some time to power up */ 1487 msleep(500); /* about 500ms */ 1488 1489 local->last_ptr_value = 0; 1490 local->silicon = local->mohawk ? (GetByte(XIRCREG4_BOV) & 0x70) >> 4 1491 : (GetByte(XIRCREG4_BOV) & 0x30) >> 4; 1492 1493 if (local->probe_port) { 1494 if (!local->mohawk) { 1495 SelectPage(4); 1496 PutByte(XIRCREG4_GPR0, 4); 1497 local->probe_port = 0; 1498 } 1499 } else if (dev->if_port == 2) { /* enable 10Base2 */ 1500 SelectPage(0x42); 1501 PutByte(XIRCREG42_SWC1, 0xC0); 1502 } else { /* enable 10BaseT */ 1503 SelectPage(0x42); 1504 PutByte(XIRCREG42_SWC1, 0x80); 1505 } 1506 msleep(40); /* wait 40 msec to let it complete */ 1507 1508 #if 0 1509 { 1510 SelectPage(0); 1511 value = GetByte(XIRCREG_ESR); /* read the ESR */ 1512 pr_debug("%s: ESR is: %#02x\n", dev->name, value); 1513 } 1514 #endif 1515 1516 /* setup the ECR */ 1517 SelectPage(1); 1518 PutByte(XIRCREG1_IMR0, 0xff); /* allow all ints */ 1519 PutByte(XIRCREG1_IMR1, 1 ); /* and Set TxUnderrunDetect */ 1520 value = GetByte(XIRCREG1_ECR); 1521 #if 0 1522 if (local->mohawk) 1523 value |= DisableLinkPulse; 1524 PutByte(XIRCREG1_ECR, value); 1525 #endif 1526 pr_debug("%s: ECR is: %#02x\n", dev->name, value); 1527 1528 SelectPage(0x42); 1529 PutByte(XIRCREG42_SWC0, 0x20); /* disable source insertion */ 1530 1531 if (local->silicon != 1) { 1532 /* set the local memory dividing line. 1533 * The comments in the sample code say that this is only 1534 * settable with the scipper version 2 which is revision 0. 1535 * Always for CE3 cards 1536 */ 1537 SelectPage(2); 1538 PutWord(XIRCREG2_RBS, 0x2000); 1539 } 1540 1541 if (full) 1542 set_addresses(dev); 1543 1544 /* Hardware workaround: 1545 * The receive byte pointer after reset is off by 1 so we need 1546 * to move the offset pointer back to 0. 1547 */ 1548 SelectPage(0); 1549 PutWord(XIRCREG0_DO, 0x2000); /* change offset command, off=0 */ 1550 1551 /* setup MAC IMRs and clear status registers */ 1552 SelectPage(0x40); /* Bit 7 ... bit 0 */ 1553 PutByte(XIRCREG40_RMASK0, 0xff); /* ROK, RAB, rsv, RO, CRC, AE, PTL, MP */ 1554 PutByte(XIRCREG40_TMASK0, 0xff); /* TOK, TAB, SQE, LL, TU, JAB, EXC, CRS */ 1555 PutByte(XIRCREG40_TMASK1, 0xb0); /* rsv, rsv, PTD, EXT, rsv,rsv,rsv, rsv*/ 1556 PutByte(XIRCREG40_RXST0, 0x00); /* ROK, RAB, REN, RO, CRC, AE, PTL, MP */ 1557 PutByte(XIRCREG40_TXST0, 0x00); /* TOK, TAB, SQE, LL, TU, JAB, EXC, CRS */ 1558 PutByte(XIRCREG40_TXST1, 0x00); /* TEN, rsv, PTD, EXT, retry_counter:4 */ 1559 1560 if (full && local->mohawk && init_mii(dev)) { 1561 if (dev->if_port == 4 || local->dingo || local->new_mii) { 1562 netdev_info(dev, "MII selected\n"); 1563 SelectPage(2); 1564 PutByte(XIRCREG2_MSR, GetByte(XIRCREG2_MSR) | 0x08); 1565 msleep(20); 1566 } else { 1567 netdev_info(dev, "MII detected; using 10mbs\n"); 1568 SelectPage(0x42); 1569 if (dev->if_port == 2) /* enable 10Base2 */ 1570 PutByte(XIRCREG42_SWC1, 0xC0); 1571 else /* enable 10BaseT */ 1572 PutByte(XIRCREG42_SWC1, 0x80); 1573 msleep(40); /* wait 40 msec to let it complete */ 1574 } 1575 if (full_duplex) 1576 PutByte(XIRCREG1_ECR, GetByte(XIRCREG1_ECR | FullDuplex)); 1577 } else { /* No MII */ 1578 SelectPage(0); 1579 value = GetByte(XIRCREG_ESR); /* read the ESR */ 1580 dev->if_port = (value & MediaSelect) ? 1 : 2; 1581 } 1582 1583 /* configure the LEDs */ 1584 SelectPage(2); 1585 if (dev->if_port == 1 || dev->if_port == 4) /* TP: Link and Activity */ 1586 PutByte(XIRCREG2_LED, 0x3b); 1587 else /* Coax: Not-Collision and Activity */ 1588 PutByte(XIRCREG2_LED, 0x3a); 1589 1590 if (local->dingo) 1591 PutByte(0x0b, 0x04); /* 100 Mbit LED */ 1592 1593 /* enable receiver and put the mac online */ 1594 if (full) { 1595 set_multicast_list(dev); 1596 SelectPage(0x40); 1597 PutByte(XIRCREG40_CMD0, EnableRecv | Online); 1598 } 1599 1600 /* setup Ethernet IMR and enable interrupts */ 1601 SelectPage(1); 1602 PutByte(XIRCREG1_IMR0, 0xff); 1603 udelay(1); 1604 SelectPage(0); 1605 PutByte(XIRCREG_CR, EnableIntr); 1606 if (local->modem && !local->dingo) { /* do some magic */ 1607 if (!(GetByte(0x10) & 0x01)) 1608 PutByte(0x10, 0x11); /* unmask master-int bit */ 1609 } 1610 1611 if (full) 1612 netdev_info(dev, "media %s, silicon revision %d\n", 1613 if_names[dev->if_port], local->silicon); 1614 /* We should switch back to page 0 to avoid a bug in revision 0 1615 * where regs with offset below 8 can't be read after an access 1616 * to the MAC registers */ 1617 SelectPage(0); 1618 } 1619 1620 /**************** 1621 * Initialize the Media-Independent-Interface 1622 * Returns: True if we have a good MII 1623 */ 1624 static int 1625 init_mii(struct net_device *dev) 1626 { 1627 struct local_info *local = netdev_priv(dev); 1628 unsigned int ioaddr = dev->base_addr; 1629 unsigned control, status, linkpartner; 1630 int i; 1631 1632 if (if_port == 4 || if_port == 1) { /* force 100BaseT or 10BaseT */ 1633 dev->if_port = if_port; 1634 local->probe_port = 0; 1635 return 1; 1636 } 1637 1638 status = mii_rd(ioaddr, 0, 1); 1639 if ((status & 0xff00) != 0x7800) 1640 return 0; /* No MII */ 1641 1642 local->new_mii = (mii_rd(ioaddr, 0, 2) != 0xffff); 1643 1644 if (local->probe_port) 1645 control = 0x1000; /* auto neg */ 1646 else if (dev->if_port == 4) 1647 control = 0x2000; /* no auto neg, 100mbs mode */ 1648 else 1649 control = 0x0000; /* no auto neg, 10mbs mode */ 1650 mii_wr(ioaddr, 0, 0, control, 16); 1651 udelay(100); 1652 control = mii_rd(ioaddr, 0, 0); 1653 1654 if (control & 0x0400) { 1655 netdev_notice(dev, "can't take PHY out of isolation mode\n"); 1656 local->probe_port = 0; 1657 return 0; 1658 } 1659 1660 if (local->probe_port) { 1661 /* according to the DP83840A specs the auto negotiation process 1662 * may take up to 3.5 sec, so we use this also for our ML6692 1663 * Fixme: Better to use a timer here! 1664 */ 1665 for (i=0; i < 35; i++) { 1666 msleep(100); /* wait 100 msec */ 1667 status = mii_rd(ioaddr, 0, 1); 1668 if ((status & 0x0020) && (status & 0x0004)) 1669 break; 1670 } 1671 1672 if (!(status & 0x0020)) { 1673 netdev_info(dev, "autonegotiation failed; using 10mbs\n"); 1674 if (!local->new_mii) { 1675 control = 0x0000; 1676 mii_wr(ioaddr, 0, 0, control, 16); 1677 udelay(100); 1678 SelectPage(0); 1679 dev->if_port = (GetByte(XIRCREG_ESR) & MediaSelect) ? 1 : 2; 1680 } 1681 } else { 1682 linkpartner = mii_rd(ioaddr, 0, 5); 1683 netdev_info(dev, "MII link partner: %04x\n", linkpartner); 1684 if (linkpartner & 0x0080) { 1685 dev->if_port = 4; 1686 } else 1687 dev->if_port = 1; 1688 } 1689 } 1690 1691 return 1; 1692 } 1693 1694 static void 1695 do_powerdown(struct net_device *dev) 1696 { 1697 1698 unsigned int ioaddr = dev->base_addr; 1699 1700 pr_debug("do_powerdown(%p)\n", dev); 1701 1702 SelectPage(4); 1703 PutByte(XIRCREG4_GPR1, 0); /* clear bit 0: power down */ 1704 SelectPage(0); 1705 } 1706 1707 static int 1708 do_stop(struct net_device *dev) 1709 { 1710 unsigned int ioaddr = dev->base_addr; 1711 struct local_info *lp = netdev_priv(dev); 1712 struct pcmcia_device *link = lp->p_dev; 1713 1714 dev_dbg(&link->dev, "do_stop(%p)\n", dev); 1715 1716 if (!link) 1717 return -ENODEV; 1718 1719 netif_stop_queue(dev); 1720 1721 SelectPage(0); 1722 PutByte(XIRCREG_CR, 0); /* disable interrupts */ 1723 SelectPage(0x01); 1724 PutByte(XIRCREG1_IMR0, 0x00); /* forbid all ints */ 1725 SelectPage(4); 1726 PutByte(XIRCREG4_GPR1, 0); /* clear bit 0: power down */ 1727 SelectPage(0); 1728 1729 link->open--; 1730 return 0; 1731 } 1732 1733 static const struct pcmcia_device_id xirc2ps_ids[] = { 1734 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0089, 0x110a), 1735 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0138, 0x110a), 1736 PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "CEM28", 0x2e3ee845, 0x0ea978ea), 1737 PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "CEM33", 0x2e3ee845, 0x80609023), 1738 PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "CEM56", 0x2e3ee845, 0xa650c32a), 1739 PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "REM10", 0x2e3ee845, 0x76df1d29), 1740 PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "XEM5600", 0x2e3ee845, 0xf1403719), 1741 PCMCIA_PFC_DEVICE_PROD_ID12(0, "Xircom", "CreditCard Ethernet+Modem II", 0x2e3ee845, 0xeca401bf), 1742 PCMCIA_DEVICE_MANF_CARD(0x01bf, 0x010a), 1743 PCMCIA_DEVICE_PROD_ID13("Toshiba Information Systems", "TPCENET", 0x1b3b94fe, 0xf381c1a2), 1744 PCMCIA_DEVICE_PROD_ID13("Xircom", "CE3-10/100", 0x2e3ee845, 0x0ec0ac37), 1745 PCMCIA_DEVICE_PROD_ID13("Xircom", "PS-CE2-10", 0x2e3ee845, 0x947d9073), 1746 PCMCIA_DEVICE_PROD_ID13("Xircom", "R2E-100BTX", 0x2e3ee845, 0x2464a6e3), 1747 PCMCIA_DEVICE_PROD_ID13("Xircom", "RE-10", 0x2e3ee845, 0x3e08d609), 1748 PCMCIA_DEVICE_PROD_ID13("Xircom", "XE2000", 0x2e3ee845, 0xf7188e46), 1749 PCMCIA_DEVICE_PROD_ID12("Compaq", "Ethernet LAN Card", 0x54f7c49c, 0x9fd2f0a2), 1750 PCMCIA_DEVICE_PROD_ID12("Compaq", "Netelligent 10/100 PC Card", 0x54f7c49c, 0xefe96769), 1751 PCMCIA_DEVICE_PROD_ID12("Intel", "EtherExpress(TM) PRO/100 PC Card Mobile Adapter16", 0x816cc815, 0x174397db), 1752 PCMCIA_DEVICE_PROD_ID12("Toshiba", "10/100 Ethernet PC Card", 0x44a09d9c, 0xb44deecf), 1753 /* also matches CFE-10 cards! */ 1754 /* PCMCIA_DEVICE_MANF_CARD(0x0105, 0x010a), */ 1755 PCMCIA_DEVICE_NULL, 1756 }; 1757 MODULE_DEVICE_TABLE(pcmcia, xirc2ps_ids); 1758 1759 1760 static struct pcmcia_driver xirc2ps_cs_driver = { 1761 .owner = THIS_MODULE, 1762 .name = "xirc2ps_cs", 1763 .probe = xirc2ps_probe, 1764 .remove = xirc2ps_detach, 1765 .id_table = xirc2ps_ids, 1766 .suspend = xirc2ps_suspend, 1767 .resume = xirc2ps_resume, 1768 }; 1769 module_pcmcia_driver(xirc2ps_cs_driver); 1770 1771 #ifndef MODULE 1772 static int __init setup_xirc2ps_cs(char *str) 1773 { 1774 /* if_port, full_duplex, do_sound, lockup_hack 1775 */ 1776 int ints[10] = { -1 }; 1777 1778 str = get_options(str, ARRAY_SIZE(ints), ints); 1779 1780 #define MAYBE_SET(X,Y) if (ints[0] >= Y && ints[Y] != -1) { X = ints[Y]; } 1781 MAYBE_SET(if_port, 3); 1782 MAYBE_SET(full_duplex, 4); 1783 MAYBE_SET(do_sound, 5); 1784 MAYBE_SET(lockup_hack, 6); 1785 #undef MAYBE_SET 1786 1787 return 1; 1788 } 1789 1790 __setup("xirc2ps_cs=", setup_xirc2ps_cs); 1791 #endif 1792