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_do_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 int i; 675 676 if (tuple->TupleDataLen != 13) 677 return -EINVAL; 678 if ((tuple->TupleData[0] != 2) || (tuple->TupleData[1] != 1) || 679 (tuple->TupleData[2] != 6)) 680 return -EINVAL; 681 /* another try (James Lehmer's CE2 version 4.1)*/ 682 for (i = 2; i < 6; i++) 683 dev->dev_addr[i] = tuple->TupleData[i+2]; 684 return 0; 685 }; 686 687 688 static int 689 xirc2ps_config(struct pcmcia_device * link) 690 { 691 struct net_device *dev = link->priv; 692 struct local_info *local = netdev_priv(dev); 693 unsigned int ioaddr; 694 int err; 695 u8 *buf; 696 size_t len; 697 698 local->dingo_ccr = NULL; 699 700 dev_dbg(&link->dev, "config\n"); 701 702 /* Is this a valid card */ 703 if (link->has_manf_id == 0) { 704 pr_notice("manfid not found in CIS\n"); 705 goto failure; 706 } 707 708 switch (link->manf_id) { 709 case MANFID_XIRCOM: 710 local->manf_str = "Xircom"; 711 break; 712 case MANFID_ACCTON: 713 local->manf_str = "Accton"; 714 break; 715 case MANFID_COMPAQ: 716 case MANFID_COMPAQ2: 717 local->manf_str = "Compaq"; 718 break; 719 case MANFID_INTEL: 720 local->manf_str = "Intel"; 721 break; 722 case MANFID_TOSHIBA: 723 local->manf_str = "Toshiba"; 724 break; 725 default: 726 pr_notice("Unknown Card Manufacturer ID: 0x%04x\n", 727 (unsigned)link->manf_id); 728 goto failure; 729 } 730 dev_dbg(&link->dev, "found %s card\n", local->manf_str); 731 732 if (!set_card_type(link)) { 733 pr_notice("this card is not supported\n"); 734 goto failure; 735 } 736 737 /* get the ethernet address from the CIS */ 738 err = pcmcia_get_mac_from_cis(link, dev); 739 740 /* not found: try to get the node-id from tuple 0x89 */ 741 if (err) { 742 len = pcmcia_get_tuple(link, 0x89, &buf); 743 /* data layout looks like tuple 0x22 */ 744 if (buf && len == 8) { 745 if (*buf == CISTPL_FUNCE_LAN_NODE_ID) { 746 int i; 747 for (i = 2; i < 6; i++) 748 dev->dev_addr[i] = buf[i+2]; 749 } else 750 err = -1; 751 } 752 kfree(buf); 753 } 754 755 if (err) 756 err = pcmcia_loop_tuple(link, CISTPL_FUNCE, pcmcia_get_mac_ce, dev); 757 758 if (err) { 759 pr_notice("node-id not found in CIS\n"); 760 goto failure; 761 } 762 763 if (local->modem) { 764 int pass; 765 link->config_flags |= CONF_AUTO_SET_IO; 766 767 if (local->dingo) { 768 /* Take the Modem IO port from the CIS and scan for a free 769 * Ethernet port */ 770 if (!pcmcia_loop_config(link, xirc2ps_config_modem, NULL)) 771 goto port_found; 772 } else { 773 /* We do 2 passes here: The first one uses the regular mapping and 774 * the second tries again, thereby considering that the 32 ports are 775 * mirrored every 32 bytes. Actually we use a mirrored port for 776 * the Mako if (on the first pass) the COR bit 5 is set. 777 */ 778 for (pass=0; pass < 2; pass++) 779 if (!pcmcia_loop_config(link, xirc2ps_config_check, 780 &pass)) 781 goto port_found; 782 /* if special option: 783 * try to configure as Ethernet only. 784 * .... */ 785 } 786 pr_notice("no ports available\n"); 787 } else { 788 link->io_lines = 10; 789 link->resource[0]->end = 16; 790 link->resource[0]->flags |= IO_DATA_PATH_WIDTH_16; 791 for (ioaddr = 0x300; ioaddr < 0x400; ioaddr += 0x10) { 792 link->resource[0]->start = ioaddr; 793 if (!(err = pcmcia_request_io(link))) 794 goto port_found; 795 } 796 link->resource[0]->start = 0; /* let CS decide */ 797 if ((err = pcmcia_request_io(link))) 798 goto config_error; 799 } 800 port_found: 801 802 /**************** 803 * Now allocate an interrupt line. Note that this does not 804 * actually assign a handler to the interrupt. 805 */ 806 if ((err=pcmcia_request_irq(link, xirc2ps_interrupt))) 807 goto config_error; 808 809 link->config_flags |= CONF_ENABLE_IRQ; 810 if (do_sound) 811 link->config_flags |= CONF_ENABLE_SPKR; 812 813 if ((err = pcmcia_enable_device(link))) 814 goto config_error; 815 816 if (local->dingo) { 817 /* Reset the modem's BAR to the correct value 818 * This is necessary because in the RequestConfiguration call, 819 * the base address of the ethernet port (BasePort1) is written 820 * to the BAR registers of the modem. 821 */ 822 err = pcmcia_write_config_byte(link, CISREG_IOBASE_0, (u8) 823 link->resource[1]->start & 0xff); 824 if (err) 825 goto config_error; 826 827 err = pcmcia_write_config_byte(link, CISREG_IOBASE_1, 828 (link->resource[1]->start >> 8) & 0xff); 829 if (err) 830 goto config_error; 831 832 /* There is no config entry for the Ethernet part which 833 * is at 0x0800. So we allocate a window into the attribute 834 * memory and write direct to the CIS registers 835 */ 836 link->resource[2]->flags = WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_AM | 837 WIN_ENABLE; 838 link->resource[2]->start = link->resource[2]->end = 0; 839 if ((err = pcmcia_request_window(link, link->resource[2], 0))) 840 goto config_error; 841 842 local->dingo_ccr = ioremap(link->resource[2]->start, 0x1000) + 0x0800; 843 if ((err = pcmcia_map_mem_page(link, link->resource[2], 0))) 844 goto config_error; 845 846 /* Setup the CCRs; there are no infos in the CIS about the Ethernet 847 * part. 848 */ 849 writeb(0x47, local->dingo_ccr + CISREG_COR); 850 ioaddr = link->resource[0]->start; 851 writeb(ioaddr & 0xff , local->dingo_ccr + CISREG_IOBASE_0); 852 writeb((ioaddr >> 8)&0xff , local->dingo_ccr + CISREG_IOBASE_1); 853 854 #if 0 855 { 856 u_char tmp; 857 pr_info("ECOR:"); 858 for (i=0; i < 7; i++) { 859 tmp = readb(local->dingo_ccr + i*2); 860 pr_cont(" %02x", tmp); 861 } 862 pr_cont("\n"); 863 pr_info("DCOR:"); 864 for (i=0; i < 4; i++) { 865 tmp = readb(local->dingo_ccr + 0x20 + i*2); 866 pr_cont(" %02x", tmp); 867 } 868 pr_cont("\n"); 869 pr_info("SCOR:"); 870 for (i=0; i < 10; i++) { 871 tmp = readb(local->dingo_ccr + 0x40 + i*2); 872 pr_cont(" %02x", tmp); 873 } 874 pr_cont("\n"); 875 } 876 #endif 877 878 writeb(0x01, local->dingo_ccr + 0x20); 879 writeb(0x0c, local->dingo_ccr + 0x22); 880 writeb(0x00, local->dingo_ccr + 0x24); 881 writeb(0x00, local->dingo_ccr + 0x26); 882 writeb(0x00, local->dingo_ccr + 0x28); 883 } 884 885 /* The if_port symbol can be set when the module is loaded */ 886 local->probe_port=0; 887 if (!if_port) { 888 local->probe_port = dev->if_port = 1; 889 } else if ((if_port >= 1 && if_port <= 2) || 890 (local->mohawk && if_port==4)) 891 dev->if_port = if_port; 892 else 893 pr_notice("invalid if_port requested\n"); 894 895 /* we can now register the device with the net subsystem */ 896 dev->irq = link->irq; 897 dev->base_addr = link->resource[0]->start; 898 899 if (local->dingo) 900 do_reset(dev, 1); /* a kludge to make the cem56 work */ 901 902 SET_NETDEV_DEV(dev, &link->dev); 903 904 if ((err=register_netdev(dev))) { 905 pr_notice("register_netdev() failed\n"); 906 goto config_error; 907 } 908 909 /* give some infos about the hardware */ 910 netdev_info(dev, "%s: port %#3lx, irq %d, hwaddr %pM\n", 911 local->manf_str, (u_long)dev->base_addr, (int)dev->irq, 912 dev->dev_addr); 913 914 return 0; 915 916 config_error: 917 xirc2ps_release(link); 918 return -ENODEV; 919 920 failure: 921 return -ENODEV; 922 } /* xirc2ps_config */ 923 924 static void 925 xirc2ps_release(struct pcmcia_device *link) 926 { 927 dev_dbg(&link->dev, "release\n"); 928 929 if (link->resource[2]->end) { 930 struct net_device *dev = link->priv; 931 struct local_info *local = netdev_priv(dev); 932 if (local->dingo) 933 iounmap(local->dingo_ccr - 0x0800); 934 } 935 pcmcia_disable_device(link); 936 } /* xirc2ps_release */ 937 938 /*====================================================================*/ 939 940 941 static int xirc2ps_suspend(struct pcmcia_device *link) 942 { 943 struct net_device *dev = link->priv; 944 945 if (link->open) { 946 netif_device_detach(dev); 947 do_powerdown(dev); 948 } 949 950 return 0; 951 } 952 953 static int xirc2ps_resume(struct pcmcia_device *link) 954 { 955 struct net_device *dev = link->priv; 956 957 if (link->open) { 958 do_reset(dev,1); 959 netif_device_attach(dev); 960 } 961 962 return 0; 963 } 964 965 966 /*====================================================================*/ 967 968 /**************** 969 * This is the Interrupt service route. 970 */ 971 static irqreturn_t 972 xirc2ps_interrupt(int irq, void *dev_id) 973 { 974 struct net_device *dev = (struct net_device *)dev_id; 975 struct local_info *lp = netdev_priv(dev); 976 unsigned int ioaddr; 977 u_char saved_page; 978 unsigned bytes_rcvd; 979 unsigned int_status, eth_status, rx_status, tx_status; 980 unsigned rsr, pktlen; 981 ulong start_ticks = jiffies; /* fixme: jiffies rollover every 497 days 982 * is this something to worry about? 983 * -- on a laptop? 984 */ 985 986 if (!netif_device_present(dev)) 987 return IRQ_HANDLED; 988 989 ioaddr = dev->base_addr; 990 if (lp->mohawk) { /* must disable the interrupt */ 991 PutByte(XIRCREG_CR, 0); 992 } 993 994 pr_debug("%s: interrupt %d at %#x.\n", dev->name, irq, ioaddr); 995 996 saved_page = GetByte(XIRCREG_PR); 997 /* Read the ISR to see whats the cause for the interrupt. 998 * This also clears the interrupt flags on CE2 cards 999 */ 1000 int_status = GetByte(XIRCREG_ISR); 1001 bytes_rcvd = 0; 1002 loop_entry: 1003 if (int_status == 0xff) { /* card may be ejected */ 1004 pr_debug("%s: interrupt %d for dead card\n", dev->name, irq); 1005 goto leave; 1006 } 1007 eth_status = GetByte(XIRCREG_ESR); 1008 1009 SelectPage(0x40); 1010 rx_status = GetByte(XIRCREG40_RXST0); 1011 PutByte(XIRCREG40_RXST0, (~rx_status & 0xff)); 1012 tx_status = GetByte(XIRCREG40_TXST0); 1013 tx_status |= GetByte(XIRCREG40_TXST1) << 8; 1014 PutByte(XIRCREG40_TXST0, 0); 1015 PutByte(XIRCREG40_TXST1, 0); 1016 1017 pr_debug("%s: ISR=%#2.2x ESR=%#2.2x RSR=%#2.2x TSR=%#4.4x\n", 1018 dev->name, int_status, eth_status, rx_status, tx_status); 1019 1020 /***** receive section ******/ 1021 SelectPage(0); 1022 while (eth_status & FullPktRcvd) { 1023 rsr = GetByte(XIRCREG0_RSR); 1024 if (bytes_rcvd > maxrx_bytes && (rsr & PktRxOk)) { 1025 /* too many bytes received during this int, drop the rest of the 1026 * packets */ 1027 dev->stats.rx_dropped++; 1028 pr_debug("%s: RX drop, too much done\n", dev->name); 1029 } else if (rsr & PktRxOk) { 1030 struct sk_buff *skb; 1031 1032 pktlen = GetWord(XIRCREG0_RBC); 1033 bytes_rcvd += pktlen; 1034 1035 pr_debug("rsr=%#02x packet_length=%u\n", rsr, pktlen); 1036 1037 /* 1 extra so we can use insw */ 1038 skb = netdev_alloc_skb(dev, pktlen + 3); 1039 if (!skb) { 1040 dev->stats.rx_dropped++; 1041 } else { /* okay get the packet */ 1042 skb_reserve(skb, 2); 1043 if (lp->silicon == 0 ) { /* work around a hardware bug */ 1044 unsigned rhsa; /* receive start address */ 1045 1046 SelectPage(5); 1047 rhsa = GetWord(XIRCREG5_RHSA0); 1048 SelectPage(0); 1049 rhsa += 3; /* skip control infos */ 1050 if (rhsa >= 0x8000) 1051 rhsa = 0; 1052 if (rhsa + pktlen > 0x8000) { 1053 unsigned i; 1054 u_char *buf = skb_put(skb, pktlen); 1055 for (i=0; i < pktlen ; i++, rhsa++) { 1056 buf[i] = GetByte(XIRCREG_EDP); 1057 if (rhsa == 0x8000) { 1058 rhsa = 0; 1059 i--; 1060 } 1061 } 1062 } else { 1063 insw(ioaddr+XIRCREG_EDP, 1064 skb_put(skb, pktlen), (pktlen+1)>>1); 1065 } 1066 } 1067 #if 0 1068 else if (lp->mohawk) { 1069 /* To use this 32 bit access we should use 1070 * a manual optimized loop 1071 * Also the words are swapped, we can get more 1072 * performance by using 32 bit access and swapping 1073 * the words in a register. Will need this for cardbus 1074 * 1075 * Note: don't forget to change the ALLOC_SKB to .. +3 1076 */ 1077 unsigned i; 1078 u_long *p = skb_put(skb, pktlen); 1079 register u_long a; 1080 unsigned int edpreg = ioaddr+XIRCREG_EDP-2; 1081 for (i=0; i < len ; i += 4, p++) { 1082 a = inl(edpreg); 1083 __asm__("rorl $16,%0\n\t" 1084 :"=q" (a) 1085 : "0" (a)); 1086 *p = a; 1087 } 1088 } 1089 #endif 1090 else { 1091 insw(ioaddr+XIRCREG_EDP, skb_put(skb, pktlen), 1092 (pktlen+1)>>1); 1093 } 1094 skb->protocol = eth_type_trans(skb, dev); 1095 netif_rx(skb); 1096 dev->stats.rx_packets++; 1097 dev->stats.rx_bytes += pktlen; 1098 if (!(rsr & PhyPkt)) 1099 dev->stats.multicast++; 1100 } 1101 } else { /* bad packet */ 1102 pr_debug("rsr=%#02x\n", rsr); 1103 } 1104 if (rsr & PktTooLong) { 1105 dev->stats.rx_frame_errors++; 1106 pr_debug("%s: Packet too long\n", dev->name); 1107 } 1108 if (rsr & CRCErr) { 1109 dev->stats.rx_crc_errors++; 1110 pr_debug("%s: CRC error\n", dev->name); 1111 } 1112 if (rsr & AlignErr) { 1113 dev->stats.rx_fifo_errors++; /* okay ? */ 1114 pr_debug("%s: Alignment error\n", dev->name); 1115 } 1116 1117 /* clear the received/dropped/error packet */ 1118 PutWord(XIRCREG0_DO, 0x8000); /* issue cmd: skip_rx_packet */ 1119 1120 /* get the new ethernet status */ 1121 eth_status = GetByte(XIRCREG_ESR); 1122 } 1123 if (rx_status & 0x10) { /* Receive overrun */ 1124 dev->stats.rx_over_errors++; 1125 PutByte(XIRCREG_CR, ClearRxOvrun); 1126 pr_debug("receive overrun cleared\n"); 1127 } 1128 1129 /***** transmit section ******/ 1130 if (int_status & PktTxed) { 1131 unsigned n, nn; 1132 1133 n = lp->last_ptr_value; 1134 nn = GetByte(XIRCREG0_PTR); 1135 lp->last_ptr_value = nn; 1136 if (nn < n) /* rollover */ 1137 dev->stats.tx_packets += 256 - n; 1138 else if (n == nn) { /* happens sometimes - don't know why */ 1139 pr_debug("PTR not changed?\n"); 1140 } else 1141 dev->stats.tx_packets += lp->last_ptr_value - n; 1142 netif_wake_queue(dev); 1143 } 1144 if (tx_status & 0x0002) { /* Excessive collisions */ 1145 pr_debug("tx restarted due to excessive collisions\n"); 1146 PutByte(XIRCREG_CR, RestartTx); /* restart transmitter process */ 1147 } 1148 if (tx_status & 0x0040) 1149 dev->stats.tx_aborted_errors++; 1150 1151 /* recalculate our work chunk so that we limit the duration of this 1152 * ISR to about 1/10 of a second. 1153 * Calculate only if we received a reasonable amount of bytes. 1154 */ 1155 if (bytes_rcvd > 1000) { 1156 u_long duration = jiffies - start_ticks; 1157 1158 if (duration >= HZ/10) { /* if more than about 1/10 second */ 1159 maxrx_bytes = (bytes_rcvd * (HZ/10)) / duration; 1160 if (maxrx_bytes < 2000) 1161 maxrx_bytes = 2000; 1162 else if (maxrx_bytes > 22000) 1163 maxrx_bytes = 22000; 1164 pr_debug("set maxrx=%u (rcvd=%u ticks=%lu)\n", 1165 maxrx_bytes, bytes_rcvd, duration); 1166 } else if (!duration && maxrx_bytes < 22000) { 1167 /* now much faster */ 1168 maxrx_bytes += 2000; 1169 if (maxrx_bytes > 22000) 1170 maxrx_bytes = 22000; 1171 pr_debug("set maxrx=%u\n", maxrx_bytes); 1172 } 1173 } 1174 1175 leave: 1176 if (lockup_hack) { 1177 if (int_status != 0xff && (int_status = GetByte(XIRCREG_ISR)) != 0) 1178 goto loop_entry; 1179 } 1180 SelectPage(saved_page); 1181 PutByte(XIRCREG_CR, EnableIntr); /* re-enable interrupts */ 1182 /* Instead of dropping packets during a receive, we could 1183 * force an interrupt with this command: 1184 * PutByte(XIRCREG_CR, EnableIntr|ForceIntr); 1185 */ 1186 return IRQ_HANDLED; 1187 } /* xirc2ps_interrupt */ 1188 1189 /*====================================================================*/ 1190 1191 static void 1192 xirc2ps_tx_timeout_task(struct work_struct *work) 1193 { 1194 struct local_info *local = 1195 container_of(work, struct local_info, tx_timeout_task); 1196 struct net_device *dev = local->dev; 1197 /* reset the card */ 1198 do_reset(dev,1); 1199 netif_trans_update(dev); /* prevent tx timeout */ 1200 netif_wake_queue(dev); 1201 } 1202 1203 static void 1204 xirc_tx_timeout(struct net_device *dev, unsigned int txqueue) 1205 { 1206 struct local_info *lp = netdev_priv(dev); 1207 dev->stats.tx_errors++; 1208 netdev_notice(dev, "transmit timed out\n"); 1209 schedule_work(&lp->tx_timeout_task); 1210 } 1211 1212 static netdev_tx_t 1213 do_start_xmit(struct sk_buff *skb, struct net_device *dev) 1214 { 1215 struct local_info *lp = netdev_priv(dev); 1216 unsigned int ioaddr = dev->base_addr; 1217 int okay; 1218 unsigned freespace; 1219 unsigned pktlen = skb->len; 1220 1221 pr_debug("do_start_xmit(skb=%p, dev=%p) len=%u\n", 1222 skb, dev, pktlen); 1223 1224 1225 /* adjust the packet length to min. required 1226 * and hope that the buffer is large enough 1227 * to provide some random data. 1228 * fixme: For Mohawk we can change this by sending 1229 * a larger packetlen than we actually have; the chip will 1230 * pad this in his buffer with random bytes 1231 */ 1232 if (pktlen < ETH_ZLEN) 1233 { 1234 if (skb_padto(skb, ETH_ZLEN)) 1235 return NETDEV_TX_OK; 1236 pktlen = ETH_ZLEN; 1237 } 1238 1239 netif_stop_queue(dev); 1240 SelectPage(0); 1241 PutWord(XIRCREG0_TRS, (u_short)pktlen+2); 1242 freespace = GetWord(XIRCREG0_TSO); 1243 okay = freespace & 0x8000; 1244 freespace &= 0x7fff; 1245 /* TRS doesn't work - (indeed it is eliminated with sil-rev 1) */ 1246 okay = pktlen +2 < freespace; 1247 pr_debug("%s: avail. tx space=%u%s\n", 1248 dev->name, freespace, okay ? " (okay)":" (not enough)"); 1249 if (!okay) { /* not enough space */ 1250 return NETDEV_TX_BUSY; /* upper layer may decide to requeue this packet */ 1251 } 1252 /* send the packet */ 1253 PutWord(XIRCREG_EDP, (u_short)pktlen); 1254 outsw(ioaddr+XIRCREG_EDP, skb->data, pktlen>>1); 1255 if (pktlen & 1) 1256 PutByte(XIRCREG_EDP, skb->data[pktlen-1]); 1257 1258 if (lp->mohawk) 1259 PutByte(XIRCREG_CR, TransmitPacket|EnableIntr); 1260 1261 dev_kfree_skb (skb); 1262 dev->stats.tx_bytes += pktlen; 1263 netif_start_queue(dev); 1264 return NETDEV_TX_OK; 1265 } 1266 1267 struct set_address_info { 1268 int reg_nr; 1269 int page_nr; 1270 int mohawk; 1271 unsigned int ioaddr; 1272 }; 1273 1274 static void set_address(struct set_address_info *sa_info, char *addr) 1275 { 1276 unsigned int ioaddr = sa_info->ioaddr; 1277 int i; 1278 1279 for (i = 0; i < 6; i++) { 1280 if (sa_info->reg_nr > 15) { 1281 sa_info->reg_nr = 8; 1282 sa_info->page_nr++; 1283 SelectPage(sa_info->page_nr); 1284 } 1285 if (sa_info->mohawk) 1286 PutByte(sa_info->reg_nr++, addr[5 - i]); 1287 else 1288 PutByte(sa_info->reg_nr++, addr[i]); 1289 } 1290 } 1291 1292 /**************** 1293 * Set all addresses: This first one is the individual address, 1294 * the next 9 addresses are taken from the multicast list and 1295 * the rest is filled with the individual address. 1296 */ 1297 static void set_addresses(struct net_device *dev) 1298 { 1299 unsigned int ioaddr = dev->base_addr; 1300 struct local_info *lp = netdev_priv(dev); 1301 struct netdev_hw_addr *ha; 1302 struct set_address_info sa_info; 1303 int i; 1304 1305 /* 1306 * Setup the info structure so that by first set_address call it will do 1307 * SelectPage with the right page number. Hence these ones here. 1308 */ 1309 sa_info.reg_nr = 15 + 1; 1310 sa_info.page_nr = 0x50 - 1; 1311 sa_info.mohawk = lp->mohawk; 1312 sa_info.ioaddr = ioaddr; 1313 1314 set_address(&sa_info, dev->dev_addr); 1315 i = 0; 1316 netdev_for_each_mc_addr(ha, dev) { 1317 if (i++ == 9) 1318 break; 1319 set_address(&sa_info, ha->addr); 1320 } 1321 while (i++ < 9) 1322 set_address(&sa_info, dev->dev_addr); 1323 SelectPage(0); 1324 } 1325 1326 /**************** 1327 * Set or clear the multicast filter for this adaptor. 1328 * We can filter up to 9 addresses, if more are requested we set 1329 * multicast promiscuous mode. 1330 */ 1331 1332 static void 1333 set_multicast_list(struct net_device *dev) 1334 { 1335 unsigned int ioaddr = dev->base_addr; 1336 unsigned value; 1337 1338 SelectPage(0x42); 1339 value = GetByte(XIRCREG42_SWC1) & 0xC0; 1340 1341 if (dev->flags & IFF_PROMISC) { /* snoop */ 1342 PutByte(XIRCREG42_SWC1, value | 0x06); /* set MPE and PME */ 1343 } else if (netdev_mc_count(dev) > 9 || (dev->flags & IFF_ALLMULTI)) { 1344 PutByte(XIRCREG42_SWC1, value | 0x02); /* set MPE */ 1345 } else if (!netdev_mc_empty(dev)) { 1346 /* the chip can filter 9 addresses perfectly */ 1347 PutByte(XIRCREG42_SWC1, value | 0x01); 1348 SelectPage(0x40); 1349 PutByte(XIRCREG40_CMD0, Offline); 1350 set_addresses(dev); 1351 SelectPage(0x40); 1352 PutByte(XIRCREG40_CMD0, EnableRecv | Online); 1353 } else { /* standard usage */ 1354 PutByte(XIRCREG42_SWC1, value | 0x00); 1355 } 1356 SelectPage(0); 1357 } 1358 1359 static int 1360 do_config(struct net_device *dev, struct ifmap *map) 1361 { 1362 struct local_info *local = netdev_priv(dev); 1363 1364 pr_debug("do_config(%p)\n", dev); 1365 if (map->port != 255 && map->port != dev->if_port) { 1366 if (map->port > 4) 1367 return -EINVAL; 1368 if (!map->port) { 1369 local->probe_port = 1; 1370 dev->if_port = 1; 1371 } else { 1372 local->probe_port = 0; 1373 dev->if_port = map->port; 1374 } 1375 netdev_info(dev, "switching to %s port\n", if_names[dev->if_port]); 1376 do_reset(dev,1); /* not the fine way :-) */ 1377 } 1378 return 0; 1379 } 1380 1381 /**************** 1382 * Open the driver 1383 */ 1384 static int 1385 do_open(struct net_device *dev) 1386 { 1387 struct local_info *lp = netdev_priv(dev); 1388 struct pcmcia_device *link = lp->p_dev; 1389 1390 dev_dbg(&link->dev, "do_open(%p)\n", dev); 1391 1392 /* Check that the PCMCIA card is still here. */ 1393 /* Physical device present signature. */ 1394 if (!pcmcia_dev_present(link)) 1395 return -ENODEV; 1396 1397 /* okay */ 1398 link->open++; 1399 1400 netif_start_queue(dev); 1401 do_reset(dev,1); 1402 1403 return 0; 1404 } 1405 1406 static void netdev_get_drvinfo(struct net_device *dev, 1407 struct ethtool_drvinfo *info) 1408 { 1409 strlcpy(info->driver, "xirc2ps_cs", sizeof(info->driver)); 1410 snprintf(info->bus_info, sizeof(info->bus_info), "PCMCIA 0x%lx", 1411 dev->base_addr); 1412 } 1413 1414 static const struct ethtool_ops netdev_ethtool_ops = { 1415 .get_drvinfo = netdev_get_drvinfo, 1416 }; 1417 1418 static int 1419 do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) 1420 { 1421 struct local_info *local = netdev_priv(dev); 1422 unsigned int ioaddr = dev->base_addr; 1423 struct mii_ioctl_data *data = if_mii(rq); 1424 1425 pr_debug("%s: ioctl(%-.6s, %#04x) %04x %04x %04x %04x\n", 1426 dev->name, rq->ifr_ifrn.ifrn_name, cmd, 1427 data->phy_id, data->reg_num, data->val_in, data->val_out); 1428 1429 if (!local->mohawk) 1430 return -EOPNOTSUPP; 1431 1432 switch(cmd) { 1433 case SIOCGMIIPHY: /* Get the address of the PHY in use. */ 1434 data->phy_id = 0; /* we have only this address */ 1435 fallthrough; 1436 case SIOCGMIIREG: /* Read the specified MII register. */ 1437 data->val_out = mii_rd(ioaddr, data->phy_id & 0x1f, 1438 data->reg_num & 0x1f); 1439 break; 1440 case SIOCSMIIREG: /* Write the specified MII register */ 1441 mii_wr(ioaddr, data->phy_id & 0x1f, data->reg_num & 0x1f, data->val_in, 1442 16); 1443 break; 1444 default: 1445 return -EOPNOTSUPP; 1446 } 1447 return 0; 1448 } 1449 1450 static void 1451 hardreset(struct net_device *dev) 1452 { 1453 struct local_info *local = netdev_priv(dev); 1454 unsigned int ioaddr = dev->base_addr; 1455 1456 SelectPage(4); 1457 udelay(1); 1458 PutByte(XIRCREG4_GPR1, 0); /* clear bit 0: power down */ 1459 msleep(40); /* wait 40 msec */ 1460 if (local->mohawk) 1461 PutByte(XIRCREG4_GPR1, 1); /* set bit 0: power up */ 1462 else 1463 PutByte(XIRCREG4_GPR1, 1 | 4); /* set bit 0: power up, bit 2: AIC */ 1464 msleep(20); /* wait 20 msec */ 1465 } 1466 1467 static void 1468 do_reset(struct net_device *dev, int full) 1469 { 1470 struct local_info *local = netdev_priv(dev); 1471 unsigned int ioaddr = dev->base_addr; 1472 unsigned value; 1473 1474 pr_debug("%s: do_reset(%p,%d)\n", dev->name, dev, full); 1475 1476 hardreset(dev); 1477 PutByte(XIRCREG_CR, SoftReset); /* set */ 1478 msleep(20); /* wait 20 msec */ 1479 PutByte(XIRCREG_CR, 0); /* clear */ 1480 msleep(40); /* wait 40 msec */ 1481 if (local->mohawk) { 1482 SelectPage(4); 1483 /* set pin GP1 and GP2 to output (0x0c) 1484 * set GP1 to low to power up the ML6692 (0x00) 1485 * set GP2 to high to power up the 10Mhz chip (0x02) 1486 */ 1487 PutByte(XIRCREG4_GPR0, 0x0e); 1488 } 1489 1490 /* give the circuits some time to power up */ 1491 msleep(500); /* about 500ms */ 1492 1493 local->last_ptr_value = 0; 1494 local->silicon = local->mohawk ? (GetByte(XIRCREG4_BOV) & 0x70) >> 4 1495 : (GetByte(XIRCREG4_BOV) & 0x30) >> 4; 1496 1497 if (local->probe_port) { 1498 if (!local->mohawk) { 1499 SelectPage(4); 1500 PutByte(XIRCREG4_GPR0, 4); 1501 local->probe_port = 0; 1502 } 1503 } else if (dev->if_port == 2) { /* enable 10Base2 */ 1504 SelectPage(0x42); 1505 PutByte(XIRCREG42_SWC1, 0xC0); 1506 } else { /* enable 10BaseT */ 1507 SelectPage(0x42); 1508 PutByte(XIRCREG42_SWC1, 0x80); 1509 } 1510 msleep(40); /* wait 40 msec to let it complete */ 1511 1512 #if 0 1513 { 1514 SelectPage(0); 1515 value = GetByte(XIRCREG_ESR); /* read the ESR */ 1516 pr_debug("%s: ESR is: %#02x\n", dev->name, value); 1517 } 1518 #endif 1519 1520 /* setup the ECR */ 1521 SelectPage(1); 1522 PutByte(XIRCREG1_IMR0, 0xff); /* allow all ints */ 1523 PutByte(XIRCREG1_IMR1, 1 ); /* and Set TxUnderrunDetect */ 1524 value = GetByte(XIRCREG1_ECR); 1525 #if 0 1526 if (local->mohawk) 1527 value |= DisableLinkPulse; 1528 PutByte(XIRCREG1_ECR, value); 1529 #endif 1530 pr_debug("%s: ECR is: %#02x\n", dev->name, value); 1531 1532 SelectPage(0x42); 1533 PutByte(XIRCREG42_SWC0, 0x20); /* disable source insertion */ 1534 1535 if (local->silicon != 1) { 1536 /* set the local memory dividing line. 1537 * The comments in the sample code say that this is only 1538 * settable with the scipper version 2 which is revision 0. 1539 * Always for CE3 cards 1540 */ 1541 SelectPage(2); 1542 PutWord(XIRCREG2_RBS, 0x2000); 1543 } 1544 1545 if (full) 1546 set_addresses(dev); 1547 1548 /* Hardware workaround: 1549 * The receive byte pointer after reset is off by 1 so we need 1550 * to move the offset pointer back to 0. 1551 */ 1552 SelectPage(0); 1553 PutWord(XIRCREG0_DO, 0x2000); /* change offset command, off=0 */ 1554 1555 /* setup MAC IMRs and clear status registers */ 1556 SelectPage(0x40); /* Bit 7 ... bit 0 */ 1557 PutByte(XIRCREG40_RMASK0, 0xff); /* ROK, RAB, rsv, RO, CRC, AE, PTL, MP */ 1558 PutByte(XIRCREG40_TMASK0, 0xff); /* TOK, TAB, SQE, LL, TU, JAB, EXC, CRS */ 1559 PutByte(XIRCREG40_TMASK1, 0xb0); /* rsv, rsv, PTD, EXT, rsv,rsv,rsv, rsv*/ 1560 PutByte(XIRCREG40_RXST0, 0x00); /* ROK, RAB, REN, RO, CRC, AE, PTL, MP */ 1561 PutByte(XIRCREG40_TXST0, 0x00); /* TOK, TAB, SQE, LL, TU, JAB, EXC, CRS */ 1562 PutByte(XIRCREG40_TXST1, 0x00); /* TEN, rsv, PTD, EXT, retry_counter:4 */ 1563 1564 if (full && local->mohawk && init_mii(dev)) { 1565 if (dev->if_port == 4 || local->dingo || local->new_mii) { 1566 netdev_info(dev, "MII selected\n"); 1567 SelectPage(2); 1568 PutByte(XIRCREG2_MSR, GetByte(XIRCREG2_MSR) | 0x08); 1569 msleep(20); 1570 } else { 1571 netdev_info(dev, "MII detected; using 10mbs\n"); 1572 SelectPage(0x42); 1573 if (dev->if_port == 2) /* enable 10Base2 */ 1574 PutByte(XIRCREG42_SWC1, 0xC0); 1575 else /* enable 10BaseT */ 1576 PutByte(XIRCREG42_SWC1, 0x80); 1577 msleep(40); /* wait 40 msec to let it complete */ 1578 } 1579 if (full_duplex) 1580 PutByte(XIRCREG1_ECR, GetByte(XIRCREG1_ECR | FullDuplex)); 1581 } else { /* No MII */ 1582 SelectPage(0); 1583 value = GetByte(XIRCREG_ESR); /* read the ESR */ 1584 dev->if_port = (value & MediaSelect) ? 1 : 2; 1585 } 1586 1587 /* configure the LEDs */ 1588 SelectPage(2); 1589 if (dev->if_port == 1 || dev->if_port == 4) /* TP: Link and Activity */ 1590 PutByte(XIRCREG2_LED, 0x3b); 1591 else /* Coax: Not-Collision and Activity */ 1592 PutByte(XIRCREG2_LED, 0x3a); 1593 1594 if (local->dingo) 1595 PutByte(0x0b, 0x04); /* 100 Mbit LED */ 1596 1597 /* enable receiver and put the mac online */ 1598 if (full) { 1599 set_multicast_list(dev); 1600 SelectPage(0x40); 1601 PutByte(XIRCREG40_CMD0, EnableRecv | Online); 1602 } 1603 1604 /* setup Ethernet IMR and enable interrupts */ 1605 SelectPage(1); 1606 PutByte(XIRCREG1_IMR0, 0xff); 1607 udelay(1); 1608 SelectPage(0); 1609 PutByte(XIRCREG_CR, EnableIntr); 1610 if (local->modem && !local->dingo) { /* do some magic */ 1611 if (!(GetByte(0x10) & 0x01)) 1612 PutByte(0x10, 0x11); /* unmask master-int bit */ 1613 } 1614 1615 if (full) 1616 netdev_info(dev, "media %s, silicon revision %d\n", 1617 if_names[dev->if_port], local->silicon); 1618 /* We should switch back to page 0 to avoid a bug in revision 0 1619 * where regs with offset below 8 can't be read after an access 1620 * to the MAC registers */ 1621 SelectPage(0); 1622 } 1623 1624 /**************** 1625 * Initialize the Media-Independent-Interface 1626 * Returns: True if we have a good MII 1627 */ 1628 static int 1629 init_mii(struct net_device *dev) 1630 { 1631 struct local_info *local = netdev_priv(dev); 1632 unsigned int ioaddr = dev->base_addr; 1633 unsigned control, status, linkpartner; 1634 int i; 1635 1636 if (if_port == 4 || if_port == 1) { /* force 100BaseT or 10BaseT */ 1637 dev->if_port = if_port; 1638 local->probe_port = 0; 1639 return 1; 1640 } 1641 1642 status = mii_rd(ioaddr, 0, 1); 1643 if ((status & 0xff00) != 0x7800) 1644 return 0; /* No MII */ 1645 1646 local->new_mii = (mii_rd(ioaddr, 0, 2) != 0xffff); 1647 1648 if (local->probe_port) 1649 control = 0x1000; /* auto neg */ 1650 else if (dev->if_port == 4) 1651 control = 0x2000; /* no auto neg, 100mbs mode */ 1652 else 1653 control = 0x0000; /* no auto neg, 10mbs mode */ 1654 mii_wr(ioaddr, 0, 0, control, 16); 1655 udelay(100); 1656 control = mii_rd(ioaddr, 0, 0); 1657 1658 if (control & 0x0400) { 1659 netdev_notice(dev, "can't take PHY out of isolation mode\n"); 1660 local->probe_port = 0; 1661 return 0; 1662 } 1663 1664 if (local->probe_port) { 1665 /* according to the DP83840A specs the auto negotiation process 1666 * may take up to 3.5 sec, so we use this also for our ML6692 1667 * Fixme: Better to use a timer here! 1668 */ 1669 for (i=0; i < 35; i++) { 1670 msleep(100); /* wait 100 msec */ 1671 status = mii_rd(ioaddr, 0, 1); 1672 if ((status & 0x0020) && (status & 0x0004)) 1673 break; 1674 } 1675 1676 if (!(status & 0x0020)) { 1677 netdev_info(dev, "autonegotiation failed; using 10mbs\n"); 1678 if (!local->new_mii) { 1679 control = 0x0000; 1680 mii_wr(ioaddr, 0, 0, control, 16); 1681 udelay(100); 1682 SelectPage(0); 1683 dev->if_port = (GetByte(XIRCREG_ESR) & MediaSelect) ? 1 : 2; 1684 } 1685 } else { 1686 linkpartner = mii_rd(ioaddr, 0, 5); 1687 netdev_info(dev, "MII link partner: %04x\n", linkpartner); 1688 if (linkpartner & 0x0080) { 1689 dev->if_port = 4; 1690 } else 1691 dev->if_port = 1; 1692 } 1693 } 1694 1695 return 1; 1696 } 1697 1698 static void 1699 do_powerdown(struct net_device *dev) 1700 { 1701 1702 unsigned int ioaddr = dev->base_addr; 1703 1704 pr_debug("do_powerdown(%p)\n", dev); 1705 1706 SelectPage(4); 1707 PutByte(XIRCREG4_GPR1, 0); /* clear bit 0: power down */ 1708 SelectPage(0); 1709 } 1710 1711 static int 1712 do_stop(struct net_device *dev) 1713 { 1714 unsigned int ioaddr = dev->base_addr; 1715 struct local_info *lp = netdev_priv(dev); 1716 struct pcmcia_device *link = lp->p_dev; 1717 1718 dev_dbg(&link->dev, "do_stop(%p)\n", dev); 1719 1720 if (!link) 1721 return -ENODEV; 1722 1723 netif_stop_queue(dev); 1724 1725 SelectPage(0); 1726 PutByte(XIRCREG_CR, 0); /* disable interrupts */ 1727 SelectPage(0x01); 1728 PutByte(XIRCREG1_IMR0, 0x00); /* forbid all ints */ 1729 SelectPage(4); 1730 PutByte(XIRCREG4_GPR1, 0); /* clear bit 0: power down */ 1731 SelectPage(0); 1732 1733 link->open--; 1734 return 0; 1735 } 1736 1737 static const struct pcmcia_device_id xirc2ps_ids[] = { 1738 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0089, 0x110a), 1739 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0138, 0x110a), 1740 PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "CEM28", 0x2e3ee845, 0x0ea978ea), 1741 PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "CEM33", 0x2e3ee845, 0x80609023), 1742 PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "CEM56", 0x2e3ee845, 0xa650c32a), 1743 PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "REM10", 0x2e3ee845, 0x76df1d29), 1744 PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "XEM5600", 0x2e3ee845, 0xf1403719), 1745 PCMCIA_PFC_DEVICE_PROD_ID12(0, "Xircom", "CreditCard Ethernet+Modem II", 0x2e3ee845, 0xeca401bf), 1746 PCMCIA_DEVICE_MANF_CARD(0x01bf, 0x010a), 1747 PCMCIA_DEVICE_PROD_ID13("Toshiba Information Systems", "TPCENET", 0x1b3b94fe, 0xf381c1a2), 1748 PCMCIA_DEVICE_PROD_ID13("Xircom", "CE3-10/100", 0x2e3ee845, 0x0ec0ac37), 1749 PCMCIA_DEVICE_PROD_ID13("Xircom", "PS-CE2-10", 0x2e3ee845, 0x947d9073), 1750 PCMCIA_DEVICE_PROD_ID13("Xircom", "R2E-100BTX", 0x2e3ee845, 0x2464a6e3), 1751 PCMCIA_DEVICE_PROD_ID13("Xircom", "RE-10", 0x2e3ee845, 0x3e08d609), 1752 PCMCIA_DEVICE_PROD_ID13("Xircom", "XE2000", 0x2e3ee845, 0xf7188e46), 1753 PCMCIA_DEVICE_PROD_ID12("Compaq", "Ethernet LAN Card", 0x54f7c49c, 0x9fd2f0a2), 1754 PCMCIA_DEVICE_PROD_ID12("Compaq", "Netelligent 10/100 PC Card", 0x54f7c49c, 0xefe96769), 1755 PCMCIA_DEVICE_PROD_ID12("Intel", "EtherExpress(TM) PRO/100 PC Card Mobile Adapter16", 0x816cc815, 0x174397db), 1756 PCMCIA_DEVICE_PROD_ID12("Toshiba", "10/100 Ethernet PC Card", 0x44a09d9c, 0xb44deecf), 1757 /* also matches CFE-10 cards! */ 1758 /* PCMCIA_DEVICE_MANF_CARD(0x0105, 0x010a), */ 1759 PCMCIA_DEVICE_NULL, 1760 }; 1761 MODULE_DEVICE_TABLE(pcmcia, xirc2ps_ids); 1762 1763 1764 static struct pcmcia_driver xirc2ps_cs_driver = { 1765 .owner = THIS_MODULE, 1766 .name = "xirc2ps_cs", 1767 .probe = xirc2ps_probe, 1768 .remove = xirc2ps_detach, 1769 .id_table = xirc2ps_ids, 1770 .suspend = xirc2ps_suspend, 1771 .resume = xirc2ps_resume, 1772 }; 1773 module_pcmcia_driver(xirc2ps_cs_driver); 1774 1775 #ifndef MODULE 1776 static int __init setup_xirc2ps_cs(char *str) 1777 { 1778 /* if_port, full_duplex, do_sound, lockup_hack 1779 */ 1780 int ints[10] = { -1 }; 1781 1782 str = get_options(str, ARRAY_SIZE(ints), ints); 1783 1784 #define MAYBE_SET(X,Y) if (ints[0] >= Y && ints[Y] != -1) { X = ints[Y]; } 1785 MAYBE_SET(if_port, 3); 1786 MAYBE_SET(full_duplex, 4); 1787 MAYBE_SET(do_sound, 5); 1788 MAYBE_SET(lockup_hack, 6); 1789 #undef MAYBE_SET 1790 1791 return 1; 1792 } 1793 1794 __setup("xirc2ps_cs=", setup_xirc2ps_cs); 1795 #endif 1796