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, write to the Free Software 31 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA 32 * 33 * 34 * ALTERNATIVELY, this driver may be distributed under the terms of 35 * the following license, in which case the provisions of this license 36 * are required INSTEAD OF the GNU General Public License. (This clause 37 * is necessary due to a potential bad interaction between the GPL and 38 * the restrictions contained in a BSD-style copyright.) 39 * 40 * Redistribution and use in source and binary forms, with or without 41 * modification, are permitted provided that the following conditions 42 * are met: 43 * 1. Redistributions of source code must retain the above copyright 44 * notice, and the entire permission notice in its entirety, 45 * including the disclaimer of warranties. 46 * 2. Redistributions in binary form must reproduce the above copyright 47 * notice, this list of conditions and the following disclaimer in the 48 * documentation and/or other materials provided with the distribution. 49 * 3. The name of the author may not be used to endorse or promote 50 * products derived from this software without specific prior 51 * written permission. 52 * 53 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED 54 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 55 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 56 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 57 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 58 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 59 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 60 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 61 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 62 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 63 * OF THE POSSIBILITY OF SUCH DAMAGE. 64 */ 65 66 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 67 68 #include <linux/module.h> 69 #include <linux/kernel.h> 70 #include <linux/init.h> 71 #include <linux/ptrace.h> 72 #include <linux/slab.h> 73 #include <linux/string.h> 74 #include <linux/timer.h> 75 #include <linux/interrupt.h> 76 #include <linux/in.h> 77 #include <linux/delay.h> 78 #include <linux/ethtool.h> 79 #include <linux/netdevice.h> 80 #include <linux/etherdevice.h> 81 #include <linux/skbuff.h> 82 #include <linux/if_arp.h> 83 #include <linux/ioport.h> 84 #include <linux/bitops.h> 85 #include <linux/mii.h> 86 87 #include <pcmcia/cistpl.h> 88 #include <pcmcia/cisreg.h> 89 #include <pcmcia/ciscode.h> 90 91 #include <asm/io.h> 92 #include <asm/uaccess.h> 93 94 #ifndef MANFID_COMPAQ 95 #define MANFID_COMPAQ 0x0138 96 #define MANFID_COMPAQ2 0x0183 /* is this correct? */ 97 #endif 98 99 #include <pcmcia/ds.h> 100 101 /* Time in jiffies before concluding Tx hung */ 102 #define TX_TIMEOUT ((400*HZ)/1000) 103 104 /**************** 105 * Some constants used to access the hardware 106 */ 107 108 /* Register offsets and value constans */ 109 #define XIRCREG_CR 0 /* Command register (wr) */ 110 enum xirc_cr { 111 TransmitPacket = 0x01, 112 SoftReset = 0x02, 113 EnableIntr = 0x04, 114 ForceIntr = 0x08, 115 ClearTxFIFO = 0x10, 116 ClearRxOvrun = 0x20, 117 RestartTx = 0x40 118 }; 119 #define XIRCREG_ESR 0 /* Ethernet status register (rd) */ 120 enum xirc_esr { 121 FullPktRcvd = 0x01, /* full packet in receive buffer */ 122 PktRejected = 0x04, /* a packet has been rejected */ 123 TxPktPend = 0x08, /* TX Packet Pending */ 124 IncorPolarity = 0x10, 125 MediaSelect = 0x20 /* set if TP, clear if AUI */ 126 }; 127 #define XIRCREG_PR 1 /* Page Register select */ 128 #define XIRCREG_EDP 4 /* Ethernet Data Port Register */ 129 #define XIRCREG_ISR 6 /* Ethernet Interrupt Status Register */ 130 enum xirc_isr { 131 TxBufOvr = 0x01, /* TX Buffer Overflow */ 132 PktTxed = 0x02, /* Packet Transmitted */ 133 MACIntr = 0x04, /* MAC Interrupt occurred */ 134 TxResGrant = 0x08, /* Tx Reservation Granted */ 135 RxFullPkt = 0x20, /* Rx Full Packet */ 136 RxPktRej = 0x40, /* Rx Packet Rejected */ 137 ForcedIntr= 0x80 /* Forced Interrupt */ 138 }; 139 #define XIRCREG1_IMR0 12 /* Ethernet Interrupt Mask Register (on page 1)*/ 140 #define XIRCREG1_IMR1 13 141 #define XIRCREG0_TSO 8 /* Transmit Space Open Register (on page 0)*/ 142 #define XIRCREG0_TRS 10 /* Transmit reservation Size Register (page 0)*/ 143 #define XIRCREG0_DO 12 /* Data Offset Register (page 0) (wr) */ 144 #define XIRCREG0_RSR 12 /* Receive Status Register (page 0) (rd) */ 145 enum xirc_rsr { 146 PhyPkt = 0x01, /* set:physical packet, clear: multicast packet */ 147 BrdcstPkt = 0x02, /* set if it is a broadcast packet */ 148 PktTooLong = 0x04, /* set if packet length > 1518 */ 149 AlignErr = 0x10, /* incorrect CRC and last octet not complete */ 150 CRCErr = 0x20, /* incorrect CRC and last octet is complete */ 151 PktRxOk = 0x80 /* received ok */ 152 }; 153 #define XIRCREG0_PTR 13 /* packets transmitted register (rd) */ 154 #define XIRCREG0_RBC 14 /* receive byte count regsister (rd) */ 155 #define XIRCREG1_ECR 14 /* ethernet configurationn register */ 156 enum xirc_ecr { 157 FullDuplex = 0x04, /* enable full duplex mode */ 158 LongTPMode = 0x08, /* adjust for longer lengths of TP cable */ 159 DisablePolCor = 0x10,/* disable auto polarity correction */ 160 DisableLinkPulse = 0x20, /* disable link pulse generation */ 161 DisableAutoTx = 0x40, /* disable auto-transmit */ 162 }; 163 #define XIRCREG2_RBS 8 /* receive buffer start register */ 164 #define XIRCREG2_LED 10 /* LED Configuration register */ 165 /* values for the leds: Bits 2-0 for led 1 166 * 0 disabled Bits 5-3 for led 2 167 * 1 collision 168 * 2 noncollision 169 * 3 link_detected 170 * 4 incor_polarity 171 * 5 jabber 172 * 6 auto_assertion 173 * 7 rx_tx_activity 174 */ 175 #define XIRCREG2_MSR 12 /* Mohawk specific register */ 176 177 #define XIRCREG4_GPR0 8 /* General Purpose Register 0 */ 178 #define XIRCREG4_GPR1 9 /* General Purpose Register 1 */ 179 #define XIRCREG2_GPR2 13 /* General Purpose Register 2 (page2!)*/ 180 #define XIRCREG4_BOV 10 /* Bonding Version Register */ 181 #define XIRCREG4_LMA 12 /* Local Memory Address Register */ 182 #define XIRCREG4_LMD 14 /* Local Memory Data Port */ 183 /* MAC register can only by accessed with 8 bit operations */ 184 #define XIRCREG40_CMD0 8 /* Command Register (wr) */ 185 enum xirc_cmd { /* Commands */ 186 Transmit = 0x01, 187 EnableRecv = 0x04, 188 DisableRecv = 0x08, 189 Abort = 0x10, 190 Online = 0x20, 191 IntrAck = 0x40, 192 Offline = 0x80 193 }; 194 #define XIRCREG5_RHSA0 10 /* Rx Host Start Address */ 195 #define XIRCREG40_RXST0 9 /* Receive Status Register */ 196 #define XIRCREG40_TXST0 11 /* Transmit Status Register 0 */ 197 #define XIRCREG40_TXST1 12 /* Transmit Status Register 10 */ 198 #define XIRCREG40_RMASK0 13 /* Receive Mask Register */ 199 #define XIRCREG40_TMASK0 14 /* Transmit Mask Register 0 */ 200 #define XIRCREG40_TMASK1 15 /* Transmit Mask Register 0 */ 201 #define XIRCREG42_SWC0 8 /* Software Configuration 0 */ 202 #define XIRCREG42_SWC1 9 /* Software Configuration 1 */ 203 #define XIRCREG42_BOC 10 /* Back-Off Configuration */ 204 #define XIRCREG44_TDR0 8 /* Time Domain Reflectometry 0 */ 205 #define XIRCREG44_TDR1 9 /* Time Domain Reflectometry 1 */ 206 #define XIRCREG44_RXBC_LO 10 /* Rx Byte Count 0 (rd) */ 207 #define XIRCREG44_RXBC_HI 11 /* Rx Byte Count 1 (rd) */ 208 #define XIRCREG45_REV 15 /* Revision Register (rd) */ 209 #define XIRCREG50_IA 8 /* Individual Address (8-13) */ 210 211 static const char *if_names[] = { "Auto", "10BaseT", "10Base2", "AUI", "100BaseT" }; 212 213 /* card types */ 214 #define XIR_UNKNOWN 0 /* unknown: not supported */ 215 #define XIR_CE 1 /* (prodid 1) different hardware: not supported */ 216 #define XIR_CE2 2 /* (prodid 2) */ 217 #define XIR_CE3 3 /* (prodid 3) */ 218 #define XIR_CEM 4 /* (prodid 1) different hardware: not supported */ 219 #define XIR_CEM2 5 /* (prodid 2) */ 220 #define XIR_CEM3 6 /* (prodid 3) */ 221 #define XIR_CEM33 7 /* (prodid 4) */ 222 #define XIR_CEM56M 8 /* (prodid 5) */ 223 #define XIR_CEM56 9 /* (prodid 6) */ 224 #define XIR_CM28 10 /* (prodid 3) modem only: not supported here */ 225 #define XIR_CM33 11 /* (prodid 4) modem only: not supported here */ 226 #define XIR_CM56 12 /* (prodid 5) modem only: not supported here */ 227 #define XIR_CG 13 /* (prodid 1) GSM modem only: not supported */ 228 #define XIR_CBE 14 /* (prodid 1) cardbus ethernet: not supported */ 229 /*====================================================================*/ 230 231 /* Module parameters */ 232 233 MODULE_DESCRIPTION("Xircom PCMCIA ethernet driver"); 234 MODULE_LICENSE("Dual MPL/GPL"); 235 236 #define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0) 237 238 INT_MODULE_PARM(if_port, 0); 239 INT_MODULE_PARM(full_duplex, 0); 240 INT_MODULE_PARM(do_sound, 1); 241 INT_MODULE_PARM(lockup_hack, 0); /* anti lockup hack */ 242 243 /*====================================================================*/ 244 245 /* We do not process more than these number of bytes during one 246 * interrupt. (Of course we receive complete packets, so this is not 247 * an exact value). 248 * Something between 2000..22000; first value gives best interrupt latency, 249 * the second enables the usage of the complete on-chip buffer. We use the 250 * high value as the initial value. 251 */ 252 static unsigned maxrx_bytes = 22000; 253 254 /* MII management prototypes */ 255 static void mii_idle(unsigned int ioaddr); 256 static void mii_putbit(unsigned int ioaddr, unsigned data); 257 static int mii_getbit(unsigned int ioaddr); 258 static void mii_wbits(unsigned int ioaddr, unsigned data, int len); 259 static unsigned mii_rd(unsigned int ioaddr, u_char phyaddr, u_char phyreg); 260 static void mii_wr(unsigned int ioaddr, u_char phyaddr, u_char phyreg, 261 unsigned data, int len); 262 263 static int has_ce2_string(struct pcmcia_device * link); 264 static int xirc2ps_config(struct pcmcia_device * link); 265 static void xirc2ps_release(struct pcmcia_device * link); 266 static void xirc2ps_detach(struct pcmcia_device *p_dev); 267 268 static irqreturn_t xirc2ps_interrupt(int irq, void *dev_id); 269 270 typedef struct local_info_t { 271 struct net_device *dev; 272 struct pcmcia_device *p_dev; 273 274 int card_type; 275 int probe_port; 276 int silicon; /* silicon revision. 0=old CE2, 1=Scipper, 4=Mohawk */ 277 int mohawk; /* a CE3 type card */ 278 int dingo; /* a CEM56 type card */ 279 int new_mii; /* has full 10baseT/100baseT MII */ 280 int modem; /* is a multi function card (i.e with a modem) */ 281 void __iomem *dingo_ccr; /* only used for CEM56 cards */ 282 unsigned last_ptr_value; /* last packets transmitted value */ 283 const char *manf_str; 284 struct work_struct tx_timeout_task; 285 } local_info_t; 286 287 /**************** 288 * Some more prototypes 289 */ 290 static netdev_tx_t do_start_xmit(struct sk_buff *skb, 291 struct net_device *dev); 292 static void xirc_tx_timeout(struct net_device *dev); 293 static void xirc2ps_tx_timeout_task(struct work_struct *work); 294 static void set_addresses(struct net_device *dev); 295 static void set_multicast_list(struct net_device *dev); 296 static int set_card_type(struct pcmcia_device *link); 297 static int do_config(struct net_device *dev, struct ifmap *map); 298 static int do_open(struct net_device *dev); 299 static int do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 300 static const struct ethtool_ops netdev_ethtool_ops; 301 static void hardreset(struct net_device *dev); 302 static void do_reset(struct net_device *dev, int full); 303 static int init_mii(struct net_device *dev); 304 static void do_powerdown(struct net_device *dev); 305 static int do_stop(struct net_device *dev); 306 307 /*=============== Helper functions =========================*/ 308 #define SelectPage(pgnr) outb((pgnr), ioaddr + XIRCREG_PR) 309 #define GetByte(reg) ((unsigned)inb(ioaddr + (reg))) 310 #define GetWord(reg) ((unsigned)inw(ioaddr + (reg))) 311 #define PutByte(reg,value) outb((value), ioaddr+(reg)) 312 #define PutWord(reg,value) outw((value), ioaddr+(reg)) 313 314 /*====== Functions used for debugging =================================*/ 315 #if 0 /* reading regs may change system status */ 316 static void 317 PrintRegisters(struct net_device *dev) 318 { 319 unsigned int ioaddr = dev->base_addr; 320 321 if (pc_debug > 1) { 322 int i, page; 323 324 printk(KERN_DEBUG pr_fmt("Register common: ")); 325 for (i = 0; i < 8; i++) 326 pr_cont(" %2.2x", GetByte(i)); 327 pr_cont("\n"); 328 for (page = 0; page <= 8; page++) { 329 printk(KERN_DEBUG pr_fmt("Register page %2x: "), page); 330 SelectPage(page); 331 for (i = 8; i < 16; i++) 332 pr_cont(" %2.2x", GetByte(i)); 333 pr_cont("\n"); 334 } 335 for (page=0x40 ; page <= 0x5f; page++) { 336 if (page == 0x43 || (page >= 0x46 && page <= 0x4f) || 337 (page >= 0x51 && page <=0x5e)) 338 continue; 339 printk(KERN_DEBUG pr_fmt("Register page %2x: "), page); 340 SelectPage(page); 341 for (i = 8; i < 16; i++) 342 pr_cont(" %2.2x", GetByte(i)); 343 pr_cont("\n"); 344 } 345 } 346 } 347 #endif /* 0 */ 348 349 /*============== MII Management functions ===============*/ 350 351 /**************** 352 * Turn around for read 353 */ 354 static void 355 mii_idle(unsigned int ioaddr) 356 { 357 PutByte(XIRCREG2_GPR2, 0x04|0); /* drive MDCK low */ 358 udelay(1); 359 PutByte(XIRCREG2_GPR2, 0x04|1); /* and drive MDCK high */ 360 udelay(1); 361 } 362 363 /**************** 364 * Write a bit to MDI/O 365 */ 366 static void 367 mii_putbit(unsigned int ioaddr, unsigned data) 368 { 369 #if 1 370 if (data) { 371 PutByte(XIRCREG2_GPR2, 0x0c|2|0); /* set MDIO */ 372 udelay(1); 373 PutByte(XIRCREG2_GPR2, 0x0c|2|1); /* and drive MDCK high */ 374 udelay(1); 375 } else { 376 PutByte(XIRCREG2_GPR2, 0x0c|0|0); /* clear MDIO */ 377 udelay(1); 378 PutByte(XIRCREG2_GPR2, 0x0c|0|1); /* and drive MDCK high */ 379 udelay(1); 380 } 381 #else 382 if (data) { 383 PutWord(XIRCREG2_GPR2-1, 0x0e0e); 384 udelay(1); 385 PutWord(XIRCREG2_GPR2-1, 0x0f0f); 386 udelay(1); 387 } else { 388 PutWord(XIRCREG2_GPR2-1, 0x0c0c); 389 udelay(1); 390 PutWord(XIRCREG2_GPR2-1, 0x0d0d); 391 udelay(1); 392 } 393 #endif 394 } 395 396 /**************** 397 * Get a bit from MDI/O 398 */ 399 static int 400 mii_getbit(unsigned int ioaddr) 401 { 402 unsigned d; 403 404 PutByte(XIRCREG2_GPR2, 4|0); /* drive MDCK low */ 405 udelay(1); 406 d = GetByte(XIRCREG2_GPR2); /* read MDIO */ 407 PutByte(XIRCREG2_GPR2, 4|1); /* drive MDCK high again */ 408 udelay(1); 409 return d & 0x20; /* read MDIO */ 410 } 411 412 static void 413 mii_wbits(unsigned int ioaddr, unsigned data, int len) 414 { 415 unsigned m = 1 << (len-1); 416 for (; m; m >>= 1) 417 mii_putbit(ioaddr, data & m); 418 } 419 420 static unsigned 421 mii_rd(unsigned int ioaddr, u_char phyaddr, u_char phyreg) 422 { 423 int i; 424 unsigned data=0, m; 425 426 SelectPage(2); 427 for (i=0; i < 32; i++) /* 32 bit preamble */ 428 mii_putbit(ioaddr, 1); 429 mii_wbits(ioaddr, 0x06, 4); /* Start and opcode for read */ 430 mii_wbits(ioaddr, phyaddr, 5); /* PHY address to be accessed */ 431 mii_wbits(ioaddr, phyreg, 5); /* PHY register to read */ 432 mii_idle(ioaddr); /* turn around */ 433 mii_getbit(ioaddr); 434 435 for (m = 1<<15; m; m >>= 1) 436 if (mii_getbit(ioaddr)) 437 data |= m; 438 mii_idle(ioaddr); 439 return data; 440 } 441 442 static void 443 mii_wr(unsigned int ioaddr, u_char phyaddr, u_char phyreg, unsigned data, 444 int len) 445 { 446 int i; 447 448 SelectPage(2); 449 for (i=0; i < 32; i++) /* 32 bit preamble */ 450 mii_putbit(ioaddr, 1); 451 mii_wbits(ioaddr, 0x05, 4); /* Start and opcode for write */ 452 mii_wbits(ioaddr, phyaddr, 5); /* PHY address to be accessed */ 453 mii_wbits(ioaddr, phyreg, 5); /* PHY Register to write */ 454 mii_putbit(ioaddr, 1); /* turn around */ 455 mii_putbit(ioaddr, 0); 456 mii_wbits(ioaddr, data, len); /* And write the data */ 457 mii_idle(ioaddr); 458 } 459 460 /*============= Main bulk of functions =========================*/ 461 462 static const struct net_device_ops netdev_ops = { 463 .ndo_open = do_open, 464 .ndo_stop = do_stop, 465 .ndo_start_xmit = do_start_xmit, 466 .ndo_tx_timeout = xirc_tx_timeout, 467 .ndo_set_config = do_config, 468 .ndo_do_ioctl = do_ioctl, 469 .ndo_set_rx_mode = set_multicast_list, 470 .ndo_change_mtu = eth_change_mtu, 471 .ndo_set_mac_address = eth_mac_addr, 472 .ndo_validate_addr = eth_validate_addr, 473 }; 474 475 static int 476 xirc2ps_probe(struct pcmcia_device *link) 477 { 478 struct net_device *dev; 479 local_info_t *local; 480 481 dev_dbg(&link->dev, "attach()\n"); 482 483 /* Allocate the device structure */ 484 dev = alloc_etherdev(sizeof(local_info_t)); 485 if (!dev) 486 return -ENOMEM; 487 local = netdev_priv(dev); 488 local->dev = dev; 489 local->p_dev = link; 490 link->priv = dev; 491 492 /* General socket configuration */ 493 link->config_index = 1; 494 495 /* Fill in card specific entries */ 496 dev->netdev_ops = &netdev_ops; 497 dev->ethtool_ops = &netdev_ethtool_ops; 498 dev->watchdog_timeo = TX_TIMEOUT; 499 INIT_WORK(&local->tx_timeout_task, xirc2ps_tx_timeout_task); 500 501 return xirc2ps_config(link); 502 } /* xirc2ps_attach */ 503 504 static void 505 xirc2ps_detach(struct pcmcia_device *link) 506 { 507 struct net_device *dev = link->priv; 508 509 dev_dbg(&link->dev, "detach\n"); 510 511 unregister_netdev(dev); 512 513 xirc2ps_release(link); 514 515 free_netdev(dev); 516 } /* xirc2ps_detach */ 517 518 /**************** 519 * Detect the type of the card. s is the buffer with the data of tuple 0x20 520 * Returns: 0 := not supported 521 * mediaid=11 and prodid=47 522 * Media-Id bits: 523 * Ethernet 0x01 524 * Tokenring 0x02 525 * Arcnet 0x04 526 * Wireless 0x08 527 * Modem 0x10 528 * GSM only 0x20 529 * Prod-Id bits: 530 * Pocket 0x10 531 * External 0x20 532 * Creditcard 0x40 533 * Cardbus 0x80 534 * 535 */ 536 static int 537 set_card_type(struct pcmcia_device *link) 538 { 539 struct net_device *dev = link->priv; 540 local_info_t *local = netdev_priv(dev); 541 u8 *buf; 542 unsigned int cisrev, mediaid, prodid; 543 size_t len; 544 545 len = pcmcia_get_tuple(link, CISTPL_MANFID, &buf); 546 if (len < 5) { 547 dev_err(&link->dev, "invalid CIS -- sorry\n"); 548 return 0; 549 } 550 551 cisrev = buf[2]; 552 mediaid = buf[3]; 553 prodid = buf[4]; 554 555 dev_dbg(&link->dev, "cisrev=%02x mediaid=%02x prodid=%02x\n", 556 cisrev, mediaid, prodid); 557 558 local->mohawk = 0; 559 local->dingo = 0; 560 local->modem = 0; 561 local->card_type = XIR_UNKNOWN; 562 if (!(prodid & 0x40)) { 563 pr_notice("Oops: Not a creditcard\n"); 564 return 0; 565 } 566 if (!(mediaid & 0x01)) { 567 pr_notice("Not an Ethernet card\n"); 568 return 0; 569 } 570 if (mediaid & 0x10) { 571 local->modem = 1; 572 switch(prodid & 15) { 573 case 1: local->card_type = XIR_CEM ; break; 574 case 2: local->card_type = XIR_CEM2 ; break; 575 case 3: local->card_type = XIR_CEM3 ; break; 576 case 4: local->card_type = XIR_CEM33 ; break; 577 case 5: local->card_type = XIR_CEM56M; 578 local->mohawk = 1; 579 break; 580 case 6: 581 case 7: /* 7 is the RealPort 10/56 */ 582 local->card_type = XIR_CEM56 ; 583 local->mohawk = 1; 584 local->dingo = 1; 585 break; 586 } 587 } else { 588 switch(prodid & 15) { 589 case 1: local->card_type = has_ce2_string(link)? XIR_CE2 : XIR_CE ; 590 break; 591 case 2: local->card_type = XIR_CE2; break; 592 case 3: local->card_type = XIR_CE3; 593 local->mohawk = 1; 594 break; 595 } 596 } 597 if (local->card_type == XIR_CE || local->card_type == XIR_CEM) { 598 pr_notice("Sorry, this is an old CE card\n"); 599 return 0; 600 } 601 if (local->card_type == XIR_UNKNOWN) 602 pr_notice("unknown card (mediaid=%02x prodid=%02x)\n", mediaid, prodid); 603 604 return 1; 605 } 606 607 /**************** 608 * There are some CE2 cards out which claim to be a CE card. 609 * This function looks for a "CE2" in the 3rd version field. 610 * Returns: true if this is a CE2 611 */ 612 static int 613 has_ce2_string(struct pcmcia_device * p_dev) 614 { 615 if (p_dev->prod_id[2] && strstr(p_dev->prod_id[2], "CE2")) 616 return 1; 617 return 0; 618 } 619 620 static int 621 xirc2ps_config_modem(struct pcmcia_device *p_dev, void *priv_data) 622 { 623 unsigned int ioaddr; 624 625 if ((p_dev->resource[0]->start & 0xf) == 8) 626 return -ENODEV; 627 628 p_dev->resource[0]->end = 16; 629 p_dev->resource[1]->end = 8; 630 p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH; 631 p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_16; 632 p_dev->resource[1]->flags &= ~IO_DATA_PATH_WIDTH; 633 p_dev->resource[1]->flags |= IO_DATA_PATH_WIDTH_8; 634 p_dev->io_lines = 10; 635 636 p_dev->resource[1]->start = p_dev->resource[0]->start; 637 for (ioaddr = 0x300; ioaddr < 0x400; ioaddr += 0x10) { 638 p_dev->resource[0]->start = ioaddr; 639 if (!pcmcia_request_io(p_dev)) 640 return 0; 641 } 642 return -ENODEV; 643 } 644 645 static int 646 xirc2ps_config_check(struct pcmcia_device *p_dev, void *priv_data) 647 { 648 int *pass = priv_data; 649 resource_size_t tmp = p_dev->resource[1]->start; 650 651 tmp += (*pass ? (p_dev->config_index & 0x20 ? -24 : 8) 652 : (p_dev->config_index & 0x20 ? 8 : -24)); 653 654 if ((p_dev->resource[0]->start & 0xf) == 8) 655 return -ENODEV; 656 657 p_dev->resource[0]->end = 18; 658 p_dev->resource[1]->end = 8; 659 p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH; 660 p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_16; 661 p_dev->resource[1]->flags &= ~IO_DATA_PATH_WIDTH; 662 p_dev->resource[1]->flags |= IO_DATA_PATH_WIDTH_8; 663 p_dev->io_lines = 10; 664 665 p_dev->resource[1]->start = p_dev->resource[0]->start; 666 p_dev->resource[0]->start = tmp; 667 return pcmcia_request_io(p_dev); 668 } 669 670 671 static int pcmcia_get_mac_ce(struct pcmcia_device *p_dev, 672 tuple_t *tuple, 673 void *priv) 674 { 675 struct net_device *dev = priv; 676 int i; 677 678 if (tuple->TupleDataLen != 13) 679 return -EINVAL; 680 if ((tuple->TupleData[0] != 2) || (tuple->TupleData[1] != 1) || 681 (tuple->TupleData[2] != 6)) 682 return -EINVAL; 683 /* another try (James Lehmer's CE2 version 4.1)*/ 684 for (i = 2; i < 6; i++) 685 dev->dev_addr[i] = tuple->TupleData[i+2]; 686 return 0; 687 }; 688 689 690 static int 691 xirc2ps_config(struct pcmcia_device * link) 692 { 693 struct net_device *dev = link->priv; 694 local_info_t *local = netdev_priv(dev); 695 unsigned int ioaddr; 696 int err; 697 u8 *buf; 698 size_t len; 699 700 local->dingo_ccr = NULL; 701 702 dev_dbg(&link->dev, "config\n"); 703 704 /* Is this a valid card */ 705 if (link->has_manf_id == 0) { 706 pr_notice("manfid not found in CIS\n"); 707 goto failure; 708 } 709 710 switch (link->manf_id) { 711 case MANFID_XIRCOM: 712 local->manf_str = "Xircom"; 713 break; 714 case MANFID_ACCTON: 715 local->manf_str = "Accton"; 716 break; 717 case MANFID_COMPAQ: 718 case MANFID_COMPAQ2: 719 local->manf_str = "Compaq"; 720 break; 721 case MANFID_INTEL: 722 local->manf_str = "Intel"; 723 break; 724 case MANFID_TOSHIBA: 725 local->manf_str = "Toshiba"; 726 break; 727 default: 728 pr_notice("Unknown Card Manufacturer ID: 0x%04x\n", 729 (unsigned)link->manf_id); 730 goto failure; 731 } 732 dev_dbg(&link->dev, "found %s card\n", local->manf_str); 733 734 if (!set_card_type(link)) { 735 pr_notice("this card is not supported\n"); 736 goto failure; 737 } 738 739 /* get the ethernet address from the CIS */ 740 err = pcmcia_get_mac_from_cis(link, dev); 741 742 /* not found: try to get the node-id from tuple 0x89 */ 743 if (err) { 744 len = pcmcia_get_tuple(link, 0x89, &buf); 745 /* data layout looks like tuple 0x22 */ 746 if (buf && len == 8) { 747 if (*buf == CISTPL_FUNCE_LAN_NODE_ID) { 748 int i; 749 for (i = 2; i < 6; i++) 750 dev->dev_addr[i] = buf[i+2]; 751 } else 752 err = -1; 753 } 754 kfree(buf); 755 } 756 757 if (err) 758 err = pcmcia_loop_tuple(link, CISTPL_FUNCE, pcmcia_get_mac_ce, dev); 759 760 if (err) { 761 pr_notice("node-id not found in CIS\n"); 762 goto failure; 763 } 764 765 if (local->modem) { 766 int pass; 767 link->config_flags |= CONF_AUTO_SET_IO; 768 769 if (local->dingo) { 770 /* Take the Modem IO port from the CIS and scan for a free 771 * Ethernet port */ 772 if (!pcmcia_loop_config(link, xirc2ps_config_modem, NULL)) 773 goto port_found; 774 } else { 775 /* We do 2 passes here: The first one uses the regular mapping and 776 * the second tries again, thereby considering that the 32 ports are 777 * mirrored every 32 bytes. Actually we use a mirrored port for 778 * the Mako if (on the first pass) the COR bit 5 is set. 779 */ 780 for (pass=0; pass < 2; pass++) 781 if (!pcmcia_loop_config(link, xirc2ps_config_check, 782 &pass)) 783 goto port_found; 784 /* if special option: 785 * try to configure as Ethernet only. 786 * .... */ 787 } 788 pr_notice("no ports available\n"); 789 } else { 790 link->io_lines = 10; 791 link->resource[0]->end = 16; 792 link->resource[0]->flags |= IO_DATA_PATH_WIDTH_16; 793 for (ioaddr = 0x300; ioaddr < 0x400; ioaddr += 0x10) { 794 link->resource[0]->start = ioaddr; 795 if (!(err = pcmcia_request_io(link))) 796 goto port_found; 797 } 798 link->resource[0]->start = 0; /* let CS decide */ 799 if ((err = pcmcia_request_io(link))) 800 goto config_error; 801 } 802 port_found: 803 if (err) 804 goto config_error; 805 806 /**************** 807 * Now allocate an interrupt line. Note that this does not 808 * actually assign a handler to the interrupt. 809 */ 810 if ((err=pcmcia_request_irq(link, xirc2ps_interrupt))) 811 goto config_error; 812 813 link->config_flags |= CONF_ENABLE_IRQ; 814 if (do_sound) 815 link->config_flags |= CONF_ENABLE_SPKR; 816 817 if ((err = pcmcia_enable_device(link))) 818 goto config_error; 819 820 if (local->dingo) { 821 /* Reset the modem's BAR to the correct value 822 * This is necessary because in the RequestConfiguration call, 823 * the base address of the ethernet port (BasePort1) is written 824 * to the BAR registers of the modem. 825 */ 826 err = pcmcia_write_config_byte(link, CISREG_IOBASE_0, (u8) 827 link->resource[1]->start & 0xff); 828 if (err) 829 goto config_error; 830 831 err = pcmcia_write_config_byte(link, CISREG_IOBASE_1, 832 (link->resource[1]->start >> 8) & 0xff); 833 if (err) 834 goto config_error; 835 836 /* There is no config entry for the Ethernet part which 837 * is at 0x0800. So we allocate a window into the attribute 838 * memory and write direct to the CIS registers 839 */ 840 link->resource[2]->flags = WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_AM | 841 WIN_ENABLE; 842 link->resource[2]->start = link->resource[2]->end = 0; 843 if ((err = pcmcia_request_window(link, link->resource[2], 0))) 844 goto config_error; 845 846 local->dingo_ccr = ioremap(link->resource[2]->start, 0x1000) + 0x0800; 847 if ((err = pcmcia_map_mem_page(link, link->resource[2], 0))) 848 goto config_error; 849 850 /* Setup the CCRs; there are no infos in the CIS about the Ethernet 851 * part. 852 */ 853 writeb(0x47, local->dingo_ccr + CISREG_COR); 854 ioaddr = link->resource[0]->start; 855 writeb(ioaddr & 0xff , local->dingo_ccr + CISREG_IOBASE_0); 856 writeb((ioaddr >> 8)&0xff , local->dingo_ccr + CISREG_IOBASE_1); 857 858 #if 0 859 { 860 u_char tmp; 861 pr_info("ECOR:"); 862 for (i=0; i < 7; i++) { 863 tmp = readb(local->dingo_ccr + i*2); 864 pr_cont(" %02x", tmp); 865 } 866 pr_cont("\n"); 867 pr_info("DCOR:"); 868 for (i=0; i < 4; i++) { 869 tmp = readb(local->dingo_ccr + 0x20 + i*2); 870 pr_cont(" %02x", tmp); 871 } 872 pr_cont("\n"); 873 pr_info("SCOR:"); 874 for (i=0; i < 10; i++) { 875 tmp = readb(local->dingo_ccr + 0x40 + i*2); 876 pr_cont(" %02x", tmp); 877 } 878 pr_cont("\n"); 879 } 880 #endif 881 882 writeb(0x01, local->dingo_ccr + 0x20); 883 writeb(0x0c, local->dingo_ccr + 0x22); 884 writeb(0x00, local->dingo_ccr + 0x24); 885 writeb(0x00, local->dingo_ccr + 0x26); 886 writeb(0x00, local->dingo_ccr + 0x28); 887 } 888 889 /* The if_port symbol can be set when the module is loaded */ 890 local->probe_port=0; 891 if (!if_port) { 892 local->probe_port = dev->if_port = 1; 893 } else if ((if_port >= 1 && if_port <= 2) || 894 (local->mohawk && if_port==4)) 895 dev->if_port = if_port; 896 else 897 pr_notice("invalid if_port requested\n"); 898 899 /* we can now register the device with the net subsystem */ 900 dev->irq = link->irq; 901 dev->base_addr = link->resource[0]->start; 902 903 if (local->dingo) 904 do_reset(dev, 1); /* a kludge to make the cem56 work */ 905 906 SET_NETDEV_DEV(dev, &link->dev); 907 908 if ((err=register_netdev(dev))) { 909 pr_notice("register_netdev() failed\n"); 910 goto config_error; 911 } 912 913 /* give some infos about the hardware */ 914 netdev_info(dev, "%s: port %#3lx, irq %d, hwaddr %pM\n", 915 local->manf_str, (u_long)dev->base_addr, (int)dev->irq, 916 dev->dev_addr); 917 918 return 0; 919 920 config_error: 921 xirc2ps_release(link); 922 return -ENODEV; 923 924 failure: 925 return -ENODEV; 926 } /* xirc2ps_config */ 927 928 static void 929 xirc2ps_release(struct pcmcia_device *link) 930 { 931 dev_dbg(&link->dev, "release\n"); 932 933 if (link->resource[2]->end) { 934 struct net_device *dev = link->priv; 935 local_info_t *local = netdev_priv(dev); 936 if (local->dingo) 937 iounmap(local->dingo_ccr - 0x0800); 938 } 939 pcmcia_disable_device(link); 940 } /* xirc2ps_release */ 941 942 /*====================================================================*/ 943 944 945 static int xirc2ps_suspend(struct pcmcia_device *link) 946 { 947 struct net_device *dev = link->priv; 948 949 if (link->open) { 950 netif_device_detach(dev); 951 do_powerdown(dev); 952 } 953 954 return 0; 955 } 956 957 static int xirc2ps_resume(struct pcmcia_device *link) 958 { 959 struct net_device *dev = link->priv; 960 961 if (link->open) { 962 do_reset(dev,1); 963 netif_device_attach(dev); 964 } 965 966 return 0; 967 } 968 969 970 /*====================================================================*/ 971 972 /**************** 973 * This is the Interrupt service route. 974 */ 975 static irqreturn_t 976 xirc2ps_interrupt(int irq, void *dev_id) 977 { 978 struct net_device *dev = (struct net_device *)dev_id; 979 local_info_t *lp = netdev_priv(dev); 980 unsigned int ioaddr; 981 u_char saved_page; 982 unsigned bytes_rcvd; 983 unsigned int_status, eth_status, rx_status, tx_status; 984 unsigned rsr, pktlen; 985 ulong start_ticks = jiffies; /* fixme: jiffies rollover every 497 days 986 * is this something to worry about? 987 * -- on a laptop? 988 */ 989 990 if (!netif_device_present(dev)) 991 return IRQ_HANDLED; 992 993 ioaddr = dev->base_addr; 994 if (lp->mohawk) { /* must disable the interrupt */ 995 PutByte(XIRCREG_CR, 0); 996 } 997 998 pr_debug("%s: interrupt %d at %#x.\n", dev->name, irq, ioaddr); 999 1000 saved_page = GetByte(XIRCREG_PR); 1001 /* Read the ISR to see whats the cause for the interrupt. 1002 * This also clears the interrupt flags on CE2 cards 1003 */ 1004 int_status = GetByte(XIRCREG_ISR); 1005 bytes_rcvd = 0; 1006 loop_entry: 1007 if (int_status == 0xff) { /* card may be ejected */ 1008 pr_debug("%s: interrupt %d for dead card\n", dev->name, irq); 1009 goto leave; 1010 } 1011 eth_status = GetByte(XIRCREG_ESR); 1012 1013 SelectPage(0x40); 1014 rx_status = GetByte(XIRCREG40_RXST0); 1015 PutByte(XIRCREG40_RXST0, (~rx_status & 0xff)); 1016 tx_status = GetByte(XIRCREG40_TXST0); 1017 tx_status |= GetByte(XIRCREG40_TXST1) << 8; 1018 PutByte(XIRCREG40_TXST0, 0); 1019 PutByte(XIRCREG40_TXST1, 0); 1020 1021 pr_debug("%s: ISR=%#2.2x ESR=%#2.2x RSR=%#2.2x TSR=%#4.4x\n", 1022 dev->name, int_status, eth_status, rx_status, tx_status); 1023 1024 /***** receive section ******/ 1025 SelectPage(0); 1026 while (eth_status & FullPktRcvd) { 1027 rsr = GetByte(XIRCREG0_RSR); 1028 if (bytes_rcvd > maxrx_bytes && (rsr & PktRxOk)) { 1029 /* too many bytes received during this int, drop the rest of the 1030 * packets */ 1031 dev->stats.rx_dropped++; 1032 pr_debug("%s: RX drop, too much done\n", dev->name); 1033 } else if (rsr & PktRxOk) { 1034 struct sk_buff *skb; 1035 1036 pktlen = GetWord(XIRCREG0_RBC); 1037 bytes_rcvd += pktlen; 1038 1039 pr_debug("rsr=%#02x packet_length=%u\n", rsr, pktlen); 1040 1041 /* 1 extra so we can use insw */ 1042 skb = netdev_alloc_skb(dev, pktlen + 3); 1043 if (!skb) { 1044 dev->stats.rx_dropped++; 1045 } else { /* okay get the packet */ 1046 skb_reserve(skb, 2); 1047 if (lp->silicon == 0 ) { /* work around a hardware bug */ 1048 unsigned rhsa; /* receive start address */ 1049 1050 SelectPage(5); 1051 rhsa = GetWord(XIRCREG5_RHSA0); 1052 SelectPage(0); 1053 rhsa += 3; /* skip control infos */ 1054 if (rhsa >= 0x8000) 1055 rhsa = 0; 1056 if (rhsa + pktlen > 0x8000) { 1057 unsigned i; 1058 u_char *buf = skb_put(skb, pktlen); 1059 for (i=0; i < pktlen ; i++, rhsa++) { 1060 buf[i] = GetByte(XIRCREG_EDP); 1061 if (rhsa == 0x8000) { 1062 rhsa = 0; 1063 i--; 1064 } 1065 } 1066 } else { 1067 insw(ioaddr+XIRCREG_EDP, 1068 skb_put(skb, pktlen), (pktlen+1)>>1); 1069 } 1070 } 1071 #if 0 1072 else if (lp->mohawk) { 1073 /* To use this 32 bit access we should use 1074 * a manual optimized loop 1075 * Also the words are swapped, we can get more 1076 * performance by using 32 bit access and swapping 1077 * the words in a register. Will need this for cardbus 1078 * 1079 * Note: don't forget to change the ALLOC_SKB to .. +3 1080 */ 1081 unsigned i; 1082 u_long *p = skb_put(skb, pktlen); 1083 register u_long a; 1084 unsigned int edpreg = ioaddr+XIRCREG_EDP-2; 1085 for (i=0; i < len ; i += 4, p++) { 1086 a = inl(edpreg); 1087 __asm__("rorl $16,%0\n\t" 1088 :"=q" (a) 1089 : "0" (a)); 1090 *p = a; 1091 } 1092 } 1093 #endif 1094 else { 1095 insw(ioaddr+XIRCREG_EDP, skb_put(skb, pktlen), 1096 (pktlen+1)>>1); 1097 } 1098 skb->protocol = eth_type_trans(skb, dev); 1099 netif_rx(skb); 1100 dev->stats.rx_packets++; 1101 dev->stats.rx_bytes += pktlen; 1102 if (!(rsr & PhyPkt)) 1103 dev->stats.multicast++; 1104 } 1105 } else { /* bad packet */ 1106 pr_debug("rsr=%#02x\n", rsr); 1107 } 1108 if (rsr & PktTooLong) { 1109 dev->stats.rx_frame_errors++; 1110 pr_debug("%s: Packet too long\n", dev->name); 1111 } 1112 if (rsr & CRCErr) { 1113 dev->stats.rx_crc_errors++; 1114 pr_debug("%s: CRC error\n", dev->name); 1115 } 1116 if (rsr & AlignErr) { 1117 dev->stats.rx_fifo_errors++; /* okay ? */ 1118 pr_debug("%s: Alignment error\n", dev->name); 1119 } 1120 1121 /* clear the received/dropped/error packet */ 1122 PutWord(XIRCREG0_DO, 0x8000); /* issue cmd: skip_rx_packet */ 1123 1124 /* get the new ethernet status */ 1125 eth_status = GetByte(XIRCREG_ESR); 1126 } 1127 if (rx_status & 0x10) { /* Receive overrun */ 1128 dev->stats.rx_over_errors++; 1129 PutByte(XIRCREG_CR, ClearRxOvrun); 1130 pr_debug("receive overrun cleared\n"); 1131 } 1132 1133 /***** transmit section ******/ 1134 if (int_status & PktTxed) { 1135 unsigned n, nn; 1136 1137 n = lp->last_ptr_value; 1138 nn = GetByte(XIRCREG0_PTR); 1139 lp->last_ptr_value = nn; 1140 if (nn < n) /* rollover */ 1141 dev->stats.tx_packets += 256 - n; 1142 else if (n == nn) { /* happens sometimes - don't know why */ 1143 pr_debug("PTR not changed?\n"); 1144 } else 1145 dev->stats.tx_packets += lp->last_ptr_value - n; 1146 netif_wake_queue(dev); 1147 } 1148 if (tx_status & 0x0002) { /* Execessive collissions */ 1149 pr_debug("tx restarted due to execssive collissions\n"); 1150 PutByte(XIRCREG_CR, RestartTx); /* restart transmitter process */ 1151 } 1152 if (tx_status & 0x0040) 1153 dev->stats.tx_aborted_errors++; 1154 1155 /* recalculate our work chunk so that we limit the duration of this 1156 * ISR to about 1/10 of a second. 1157 * Calculate only if we received a reasonable amount of bytes. 1158 */ 1159 if (bytes_rcvd > 1000) { 1160 u_long duration = jiffies - start_ticks; 1161 1162 if (duration >= HZ/10) { /* if more than about 1/10 second */ 1163 maxrx_bytes = (bytes_rcvd * (HZ/10)) / duration; 1164 if (maxrx_bytes < 2000) 1165 maxrx_bytes = 2000; 1166 else if (maxrx_bytes > 22000) 1167 maxrx_bytes = 22000; 1168 pr_debug("set maxrx=%u (rcvd=%u ticks=%lu)\n", 1169 maxrx_bytes, bytes_rcvd, duration); 1170 } else if (!duration && maxrx_bytes < 22000) { 1171 /* now much faster */ 1172 maxrx_bytes += 2000; 1173 if (maxrx_bytes > 22000) 1174 maxrx_bytes = 22000; 1175 pr_debug("set maxrx=%u\n", maxrx_bytes); 1176 } 1177 } 1178 1179 leave: 1180 if (lockup_hack) { 1181 if (int_status != 0xff && (int_status = GetByte(XIRCREG_ISR)) != 0) 1182 goto loop_entry; 1183 } 1184 SelectPage(saved_page); 1185 PutByte(XIRCREG_CR, EnableIntr); /* re-enable interrupts */ 1186 /* Instead of dropping packets during a receive, we could 1187 * force an interrupt with this command: 1188 * PutByte(XIRCREG_CR, EnableIntr|ForceIntr); 1189 */ 1190 return IRQ_HANDLED; 1191 } /* xirc2ps_interrupt */ 1192 1193 /*====================================================================*/ 1194 1195 static void 1196 xirc2ps_tx_timeout_task(struct work_struct *work) 1197 { 1198 local_info_t *local = 1199 container_of(work, local_info_t, tx_timeout_task); 1200 struct net_device *dev = local->dev; 1201 /* reset the card */ 1202 do_reset(dev,1); 1203 dev->trans_start = jiffies; /* prevent tx timeout */ 1204 netif_wake_queue(dev); 1205 } 1206 1207 static void 1208 xirc_tx_timeout(struct net_device *dev) 1209 { 1210 local_info_t *lp = netdev_priv(dev); 1211 dev->stats.tx_errors++; 1212 netdev_notice(dev, "transmit timed out\n"); 1213 schedule_work(&lp->tx_timeout_task); 1214 } 1215 1216 static netdev_tx_t 1217 do_start_xmit(struct sk_buff *skb, struct net_device *dev) 1218 { 1219 local_info_t *lp = netdev_priv(dev); 1220 unsigned int ioaddr = dev->base_addr; 1221 int okay; 1222 unsigned freespace; 1223 unsigned pktlen = skb->len; 1224 1225 pr_debug("do_start_xmit(skb=%p, dev=%p) len=%u\n", 1226 skb, dev, pktlen); 1227 1228 1229 /* adjust the packet length to min. required 1230 * and hope that the buffer is large enough 1231 * to provide some random data. 1232 * fixme: For Mohawk we can change this by sending 1233 * a larger packetlen than we actually have; the chip will 1234 * pad this in his buffer with random bytes 1235 */ 1236 if (pktlen < ETH_ZLEN) 1237 { 1238 if (skb_padto(skb, ETH_ZLEN)) 1239 return NETDEV_TX_OK; 1240 pktlen = ETH_ZLEN; 1241 } 1242 1243 netif_stop_queue(dev); 1244 SelectPage(0); 1245 PutWord(XIRCREG0_TRS, (u_short)pktlen+2); 1246 freespace = GetWord(XIRCREG0_TSO); 1247 okay = freespace & 0x8000; 1248 freespace &= 0x7fff; 1249 /* TRS doesn't work - (indeed it is eliminated with sil-rev 1) */ 1250 okay = pktlen +2 < freespace; 1251 pr_debug("%s: avail. tx space=%u%s\n", 1252 dev->name, freespace, okay ? " (okay)":" (not enough)"); 1253 if (!okay) { /* not enough space */ 1254 return NETDEV_TX_BUSY; /* upper layer may decide to requeue this packet */ 1255 } 1256 /* send the packet */ 1257 PutWord(XIRCREG_EDP, (u_short)pktlen); 1258 outsw(ioaddr+XIRCREG_EDP, skb->data, pktlen>>1); 1259 if (pktlen & 1) 1260 PutByte(XIRCREG_EDP, skb->data[pktlen-1]); 1261 1262 if (lp->mohawk) 1263 PutByte(XIRCREG_CR, TransmitPacket|EnableIntr); 1264 1265 dev_kfree_skb (skb); 1266 dev->stats.tx_bytes += pktlen; 1267 netif_start_queue(dev); 1268 return NETDEV_TX_OK; 1269 } 1270 1271 struct set_address_info { 1272 int reg_nr; 1273 int page_nr; 1274 int mohawk; 1275 unsigned int ioaddr; 1276 }; 1277 1278 static void set_address(struct set_address_info *sa_info, char *addr) 1279 { 1280 unsigned int ioaddr = sa_info->ioaddr; 1281 int i; 1282 1283 for (i = 0; i < 6; i++) { 1284 if (sa_info->reg_nr > 15) { 1285 sa_info->reg_nr = 8; 1286 sa_info->page_nr++; 1287 SelectPage(sa_info->page_nr); 1288 } 1289 if (sa_info->mohawk) 1290 PutByte(sa_info->reg_nr++, addr[5 - i]); 1291 else 1292 PutByte(sa_info->reg_nr++, addr[i]); 1293 } 1294 } 1295 1296 /**************** 1297 * Set all addresses: This first one is the individual address, 1298 * the next 9 addresses are taken from the multicast list and 1299 * the rest is filled with the individual address. 1300 */ 1301 static void set_addresses(struct net_device *dev) 1302 { 1303 unsigned int ioaddr = dev->base_addr; 1304 local_info_t *lp = netdev_priv(dev); 1305 struct netdev_hw_addr *ha; 1306 struct set_address_info sa_info; 1307 int i; 1308 1309 /* 1310 * Setup the info structure so that by first set_address call it will do 1311 * SelectPage with the right page number. Hence these ones here. 1312 */ 1313 sa_info.reg_nr = 15 + 1; 1314 sa_info.page_nr = 0x50 - 1; 1315 sa_info.mohawk = lp->mohawk; 1316 sa_info.ioaddr = ioaddr; 1317 1318 set_address(&sa_info, dev->dev_addr); 1319 i = 0; 1320 netdev_for_each_mc_addr(ha, dev) { 1321 if (i++ == 9) 1322 break; 1323 set_address(&sa_info, ha->addr); 1324 } 1325 while (i++ < 9) 1326 set_address(&sa_info, dev->dev_addr); 1327 SelectPage(0); 1328 } 1329 1330 /**************** 1331 * Set or clear the multicast filter for this adaptor. 1332 * We can filter up to 9 addresses, if more are requested we set 1333 * multicast promiscuous mode. 1334 */ 1335 1336 static void 1337 set_multicast_list(struct net_device *dev) 1338 { 1339 unsigned int ioaddr = dev->base_addr; 1340 unsigned value; 1341 1342 SelectPage(0x42); 1343 value = GetByte(XIRCREG42_SWC1) & 0xC0; 1344 1345 if (dev->flags & IFF_PROMISC) { /* snoop */ 1346 PutByte(XIRCREG42_SWC1, value | 0x06); /* set MPE and PME */ 1347 } else if (netdev_mc_count(dev) > 9 || (dev->flags & IFF_ALLMULTI)) { 1348 PutByte(XIRCREG42_SWC1, value | 0x02); /* set MPE */ 1349 } else if (!netdev_mc_empty(dev)) { 1350 /* the chip can filter 9 addresses perfectly */ 1351 PutByte(XIRCREG42_SWC1, value | 0x01); 1352 SelectPage(0x40); 1353 PutByte(XIRCREG40_CMD0, Offline); 1354 set_addresses(dev); 1355 SelectPage(0x40); 1356 PutByte(XIRCREG40_CMD0, EnableRecv | Online); 1357 } else { /* standard usage */ 1358 PutByte(XIRCREG42_SWC1, value | 0x00); 1359 } 1360 SelectPage(0); 1361 } 1362 1363 static int 1364 do_config(struct net_device *dev, struct ifmap *map) 1365 { 1366 local_info_t *local = netdev_priv(dev); 1367 1368 pr_debug("do_config(%p)\n", dev); 1369 if (map->port != 255 && map->port != dev->if_port) { 1370 if (map->port > 4) 1371 return -EINVAL; 1372 if (!map->port) { 1373 local->probe_port = 1; 1374 dev->if_port = 1; 1375 } else { 1376 local->probe_port = 0; 1377 dev->if_port = map->port; 1378 } 1379 netdev_info(dev, "switching to %s port\n", if_names[dev->if_port]); 1380 do_reset(dev,1); /* not the fine way :-) */ 1381 } 1382 return 0; 1383 } 1384 1385 /**************** 1386 * Open the driver 1387 */ 1388 static int 1389 do_open(struct net_device *dev) 1390 { 1391 local_info_t *lp = netdev_priv(dev); 1392 struct pcmcia_device *link = lp->p_dev; 1393 1394 dev_dbg(&link->dev, "do_open(%p)\n", dev); 1395 1396 /* Check that the PCMCIA card is still here. */ 1397 /* Physical device present signature. */ 1398 if (!pcmcia_dev_present(link)) 1399 return -ENODEV; 1400 1401 /* okay */ 1402 link->open++; 1403 1404 netif_start_queue(dev); 1405 do_reset(dev,1); 1406 1407 return 0; 1408 } 1409 1410 static void netdev_get_drvinfo(struct net_device *dev, 1411 struct ethtool_drvinfo *info) 1412 { 1413 strlcpy(info->driver, "xirc2ps_cs", sizeof(info->driver)); 1414 snprintf(info->bus_info, sizeof(info->bus_info), "PCMCIA 0x%lx", 1415 dev->base_addr); 1416 } 1417 1418 static const struct ethtool_ops netdev_ethtool_ops = { 1419 .get_drvinfo = netdev_get_drvinfo, 1420 }; 1421 1422 static int 1423 do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) 1424 { 1425 local_info_t *local = netdev_priv(dev); 1426 unsigned int ioaddr = dev->base_addr; 1427 struct mii_ioctl_data *data = if_mii(rq); 1428 1429 pr_debug("%s: ioctl(%-.6s, %#04x) %04x %04x %04x %04x\n", 1430 dev->name, rq->ifr_ifrn.ifrn_name, cmd, 1431 data->phy_id, data->reg_num, data->val_in, data->val_out); 1432 1433 if (!local->mohawk) 1434 return -EOPNOTSUPP; 1435 1436 switch(cmd) { 1437 case SIOCGMIIPHY: /* Get the address of the PHY in use. */ 1438 data->phy_id = 0; /* we have only this address */ 1439 /* fall through */ 1440 case SIOCGMIIREG: /* Read the specified MII register. */ 1441 data->val_out = mii_rd(ioaddr, data->phy_id & 0x1f, 1442 data->reg_num & 0x1f); 1443 break; 1444 case SIOCSMIIREG: /* Write the specified MII register */ 1445 mii_wr(ioaddr, data->phy_id & 0x1f, data->reg_num & 0x1f, data->val_in, 1446 16); 1447 break; 1448 default: 1449 return -EOPNOTSUPP; 1450 } 1451 return 0; 1452 } 1453 1454 static void 1455 hardreset(struct net_device *dev) 1456 { 1457 local_info_t *local = netdev_priv(dev); 1458 unsigned int ioaddr = dev->base_addr; 1459 1460 SelectPage(4); 1461 udelay(1); 1462 PutByte(XIRCREG4_GPR1, 0); /* clear bit 0: power down */ 1463 msleep(40); /* wait 40 msec */ 1464 if (local->mohawk) 1465 PutByte(XIRCREG4_GPR1, 1); /* set bit 0: power up */ 1466 else 1467 PutByte(XIRCREG4_GPR1, 1 | 4); /* set bit 0: power up, bit 2: AIC */ 1468 msleep(20); /* wait 20 msec */ 1469 } 1470 1471 static void 1472 do_reset(struct net_device *dev, int full) 1473 { 1474 local_info_t *local = netdev_priv(dev); 1475 unsigned int ioaddr = dev->base_addr; 1476 unsigned value; 1477 1478 pr_debug("%s: do_reset(%p,%d)\n", dev? dev->name:"eth?", dev, full); 1479 1480 hardreset(dev); 1481 PutByte(XIRCREG_CR, SoftReset); /* set */ 1482 msleep(20); /* wait 20 msec */ 1483 PutByte(XIRCREG_CR, 0); /* clear */ 1484 msleep(40); /* wait 40 msec */ 1485 if (local->mohawk) { 1486 SelectPage(4); 1487 /* set pin GP1 and GP2 to output (0x0c) 1488 * set GP1 to low to power up the ML6692 (0x00) 1489 * set GP2 to high to power up the 10Mhz chip (0x02) 1490 */ 1491 PutByte(XIRCREG4_GPR0, 0x0e); 1492 } 1493 1494 /* give the circuits some time to power up */ 1495 msleep(500); /* about 500ms */ 1496 1497 local->last_ptr_value = 0; 1498 local->silicon = local->mohawk ? (GetByte(XIRCREG4_BOV) & 0x70) >> 4 1499 : (GetByte(XIRCREG4_BOV) & 0x30) >> 4; 1500 1501 if (local->probe_port) { 1502 if (!local->mohawk) { 1503 SelectPage(4); 1504 PutByte(XIRCREG4_GPR0, 4); 1505 local->probe_port = 0; 1506 } 1507 } else if (dev->if_port == 2) { /* enable 10Base2 */ 1508 SelectPage(0x42); 1509 PutByte(XIRCREG42_SWC1, 0xC0); 1510 } else { /* enable 10BaseT */ 1511 SelectPage(0x42); 1512 PutByte(XIRCREG42_SWC1, 0x80); 1513 } 1514 msleep(40); /* wait 40 msec to let it complete */ 1515 1516 #if 0 1517 { 1518 SelectPage(0); 1519 value = GetByte(XIRCREG_ESR); /* read the ESR */ 1520 pr_debug("%s: ESR is: %#02x\n", dev->name, value); 1521 } 1522 #endif 1523 1524 /* setup the ECR */ 1525 SelectPage(1); 1526 PutByte(XIRCREG1_IMR0, 0xff); /* allow all ints */ 1527 PutByte(XIRCREG1_IMR1, 1 ); /* and Set TxUnderrunDetect */ 1528 value = GetByte(XIRCREG1_ECR); 1529 #if 0 1530 if (local->mohawk) 1531 value |= DisableLinkPulse; 1532 PutByte(XIRCREG1_ECR, value); 1533 #endif 1534 pr_debug("%s: ECR is: %#02x\n", dev->name, value); 1535 1536 SelectPage(0x42); 1537 PutByte(XIRCREG42_SWC0, 0x20); /* disable source insertion */ 1538 1539 if (local->silicon != 1) { 1540 /* set the local memory dividing line. 1541 * The comments in the sample code say that this is only 1542 * settable with the scipper version 2 which is revision 0. 1543 * Always for CE3 cards 1544 */ 1545 SelectPage(2); 1546 PutWord(XIRCREG2_RBS, 0x2000); 1547 } 1548 1549 if (full) 1550 set_addresses(dev); 1551 1552 /* Hardware workaround: 1553 * The receive byte pointer after reset is off by 1 so we need 1554 * to move the offset pointer back to 0. 1555 */ 1556 SelectPage(0); 1557 PutWord(XIRCREG0_DO, 0x2000); /* change offset command, off=0 */ 1558 1559 /* setup MAC IMRs and clear status registers */ 1560 SelectPage(0x40); /* Bit 7 ... bit 0 */ 1561 PutByte(XIRCREG40_RMASK0, 0xff); /* ROK, RAB, rsv, RO, CRC, AE, PTL, MP */ 1562 PutByte(XIRCREG40_TMASK0, 0xff); /* TOK, TAB, SQE, LL, TU, JAB, EXC, CRS */ 1563 PutByte(XIRCREG40_TMASK1, 0xb0); /* rsv, rsv, PTD, EXT, rsv,rsv,rsv, rsv*/ 1564 PutByte(XIRCREG40_RXST0, 0x00); /* ROK, RAB, REN, RO, CRC, AE, PTL, MP */ 1565 PutByte(XIRCREG40_TXST0, 0x00); /* TOK, TAB, SQE, LL, TU, JAB, EXC, CRS */ 1566 PutByte(XIRCREG40_TXST1, 0x00); /* TEN, rsv, PTD, EXT, retry_counter:4 */ 1567 1568 if (full && local->mohawk && init_mii(dev)) { 1569 if (dev->if_port == 4 || local->dingo || local->new_mii) { 1570 netdev_info(dev, "MII selected\n"); 1571 SelectPage(2); 1572 PutByte(XIRCREG2_MSR, GetByte(XIRCREG2_MSR) | 0x08); 1573 msleep(20); 1574 } else { 1575 netdev_info(dev, "MII detected; using 10mbs\n"); 1576 SelectPage(0x42); 1577 if (dev->if_port == 2) /* enable 10Base2 */ 1578 PutByte(XIRCREG42_SWC1, 0xC0); 1579 else /* enable 10BaseT */ 1580 PutByte(XIRCREG42_SWC1, 0x80); 1581 msleep(40); /* wait 40 msec to let it complete */ 1582 } 1583 if (full_duplex) 1584 PutByte(XIRCREG1_ECR, GetByte(XIRCREG1_ECR | FullDuplex)); 1585 } else { /* No MII */ 1586 SelectPage(0); 1587 value = GetByte(XIRCREG_ESR); /* read the ESR */ 1588 dev->if_port = (value & MediaSelect) ? 1 : 2; 1589 } 1590 1591 /* configure the LEDs */ 1592 SelectPage(2); 1593 if (dev->if_port == 1 || dev->if_port == 4) /* TP: Link and Activity */ 1594 PutByte(XIRCREG2_LED, 0x3b); 1595 else /* Coax: Not-Collision and Activity */ 1596 PutByte(XIRCREG2_LED, 0x3a); 1597 1598 if (local->dingo) 1599 PutByte(0x0b, 0x04); /* 100 Mbit LED */ 1600 1601 /* enable receiver and put the mac online */ 1602 if (full) { 1603 set_multicast_list(dev); 1604 SelectPage(0x40); 1605 PutByte(XIRCREG40_CMD0, EnableRecv | Online); 1606 } 1607 1608 /* setup Ethernet IMR and enable interrupts */ 1609 SelectPage(1); 1610 PutByte(XIRCREG1_IMR0, 0xff); 1611 udelay(1); 1612 SelectPage(0); 1613 PutByte(XIRCREG_CR, EnableIntr); 1614 if (local->modem && !local->dingo) { /* do some magic */ 1615 if (!(GetByte(0x10) & 0x01)) 1616 PutByte(0x10, 0x11); /* unmask master-int bit */ 1617 } 1618 1619 if (full) 1620 netdev_info(dev, "media %s, silicon revision %d\n", 1621 if_names[dev->if_port], local->silicon); 1622 /* We should switch back to page 0 to avoid a bug in revision 0 1623 * where regs with offset below 8 can't be read after an access 1624 * to the MAC registers */ 1625 SelectPage(0); 1626 } 1627 1628 /**************** 1629 * Initialize the Media-Independent-Interface 1630 * Returns: True if we have a good MII 1631 */ 1632 static int 1633 init_mii(struct net_device *dev) 1634 { 1635 local_info_t *local = netdev_priv(dev); 1636 unsigned int ioaddr = dev->base_addr; 1637 unsigned control, status, linkpartner; 1638 int i; 1639 1640 if (if_port == 4 || if_port == 1) { /* force 100BaseT or 10BaseT */ 1641 dev->if_port = if_port; 1642 local->probe_port = 0; 1643 return 1; 1644 } 1645 1646 status = mii_rd(ioaddr, 0, 1); 1647 if ((status & 0xff00) != 0x7800) 1648 return 0; /* No MII */ 1649 1650 local->new_mii = (mii_rd(ioaddr, 0, 2) != 0xffff); 1651 1652 if (local->probe_port) 1653 control = 0x1000; /* auto neg */ 1654 else if (dev->if_port == 4) 1655 control = 0x2000; /* no auto neg, 100mbs mode */ 1656 else 1657 control = 0x0000; /* no auto neg, 10mbs mode */ 1658 mii_wr(ioaddr, 0, 0, control, 16); 1659 udelay(100); 1660 control = mii_rd(ioaddr, 0, 0); 1661 1662 if (control & 0x0400) { 1663 netdev_notice(dev, "can't take PHY out of isolation mode\n"); 1664 local->probe_port = 0; 1665 return 0; 1666 } 1667 1668 if (local->probe_port) { 1669 /* according to the DP83840A specs the auto negotiation process 1670 * may take up to 3.5 sec, so we use this also for our ML6692 1671 * Fixme: Better to use a timer here! 1672 */ 1673 for (i=0; i < 35; i++) { 1674 msleep(100); /* wait 100 msec */ 1675 status = mii_rd(ioaddr, 0, 1); 1676 if ((status & 0x0020) && (status & 0x0004)) 1677 break; 1678 } 1679 1680 if (!(status & 0x0020)) { 1681 netdev_info(dev, "autonegotiation failed; using 10mbs\n"); 1682 if (!local->new_mii) { 1683 control = 0x0000; 1684 mii_wr(ioaddr, 0, 0, control, 16); 1685 udelay(100); 1686 SelectPage(0); 1687 dev->if_port = (GetByte(XIRCREG_ESR) & MediaSelect) ? 1 : 2; 1688 } 1689 } else { 1690 linkpartner = mii_rd(ioaddr, 0, 5); 1691 netdev_info(dev, "MII link partner: %04x\n", linkpartner); 1692 if (linkpartner & 0x0080) { 1693 dev->if_port = 4; 1694 } else 1695 dev->if_port = 1; 1696 } 1697 } 1698 1699 return 1; 1700 } 1701 1702 static void 1703 do_powerdown(struct net_device *dev) 1704 { 1705 1706 unsigned int ioaddr = dev->base_addr; 1707 1708 pr_debug("do_powerdown(%p)\n", dev); 1709 1710 SelectPage(4); 1711 PutByte(XIRCREG4_GPR1, 0); /* clear bit 0: power down */ 1712 SelectPage(0); 1713 } 1714 1715 static int 1716 do_stop(struct net_device *dev) 1717 { 1718 unsigned int ioaddr = dev->base_addr; 1719 local_info_t *lp = netdev_priv(dev); 1720 struct pcmcia_device *link = lp->p_dev; 1721 1722 dev_dbg(&link->dev, "do_stop(%p)\n", dev); 1723 1724 if (!link) 1725 return -ENODEV; 1726 1727 netif_stop_queue(dev); 1728 1729 SelectPage(0); 1730 PutByte(XIRCREG_CR, 0); /* disable interrupts */ 1731 SelectPage(0x01); 1732 PutByte(XIRCREG1_IMR0, 0x00); /* forbid all ints */ 1733 SelectPage(4); 1734 PutByte(XIRCREG4_GPR1, 0); /* clear bit 0: power down */ 1735 SelectPage(0); 1736 1737 link->open--; 1738 return 0; 1739 } 1740 1741 static const struct pcmcia_device_id xirc2ps_ids[] = { 1742 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0089, 0x110a), 1743 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0138, 0x110a), 1744 PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "CEM28", 0x2e3ee845, 0x0ea978ea), 1745 PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "CEM33", 0x2e3ee845, 0x80609023), 1746 PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "CEM56", 0x2e3ee845, 0xa650c32a), 1747 PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "REM10", 0x2e3ee845, 0x76df1d29), 1748 PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "XEM5600", 0x2e3ee845, 0xf1403719), 1749 PCMCIA_PFC_DEVICE_PROD_ID12(0, "Xircom", "CreditCard Ethernet+Modem II", 0x2e3ee845, 0xeca401bf), 1750 PCMCIA_DEVICE_MANF_CARD(0x01bf, 0x010a), 1751 PCMCIA_DEVICE_PROD_ID13("Toshiba Information Systems", "TPCENET", 0x1b3b94fe, 0xf381c1a2), 1752 PCMCIA_DEVICE_PROD_ID13("Xircom", "CE3-10/100", 0x2e3ee845, 0x0ec0ac37), 1753 PCMCIA_DEVICE_PROD_ID13("Xircom", "PS-CE2-10", 0x2e3ee845, 0x947d9073), 1754 PCMCIA_DEVICE_PROD_ID13("Xircom", "R2E-100BTX", 0x2e3ee845, 0x2464a6e3), 1755 PCMCIA_DEVICE_PROD_ID13("Xircom", "RE-10", 0x2e3ee845, 0x3e08d609), 1756 PCMCIA_DEVICE_PROD_ID13("Xircom", "XE2000", 0x2e3ee845, 0xf7188e46), 1757 PCMCIA_DEVICE_PROD_ID12("Compaq", "Ethernet LAN Card", 0x54f7c49c, 0x9fd2f0a2), 1758 PCMCIA_DEVICE_PROD_ID12("Compaq", "Netelligent 10/100 PC Card", 0x54f7c49c, 0xefe96769), 1759 PCMCIA_DEVICE_PROD_ID12("Intel", "EtherExpress(TM) PRO/100 PC Card Mobile Adapter16", 0x816cc815, 0x174397db), 1760 PCMCIA_DEVICE_PROD_ID12("Toshiba", "10/100 Ethernet PC Card", 0x44a09d9c, 0xb44deecf), 1761 /* also matches CFE-10 cards! */ 1762 /* PCMCIA_DEVICE_MANF_CARD(0x0105, 0x010a), */ 1763 PCMCIA_DEVICE_NULL, 1764 }; 1765 MODULE_DEVICE_TABLE(pcmcia, xirc2ps_ids); 1766 1767 1768 static struct pcmcia_driver xirc2ps_cs_driver = { 1769 .owner = THIS_MODULE, 1770 .name = "xirc2ps_cs", 1771 .probe = xirc2ps_probe, 1772 .remove = xirc2ps_detach, 1773 .id_table = xirc2ps_ids, 1774 .suspend = xirc2ps_suspend, 1775 .resume = xirc2ps_resume, 1776 }; 1777 module_pcmcia_driver(xirc2ps_cs_driver); 1778 1779 #ifndef MODULE 1780 static int __init setup_xirc2ps_cs(char *str) 1781 { 1782 /* if_port, full_duplex, do_sound, lockup_hack 1783 */ 1784 int ints[10] = { -1 }; 1785 1786 str = get_options(str, 9, ints); 1787 1788 #define MAYBE_SET(X,Y) if (ints[0] >= Y && ints[Y] != -1) { X = ints[Y]; } 1789 MAYBE_SET(if_port, 3); 1790 MAYBE_SET(full_duplex, 4); 1791 MAYBE_SET(do_sound, 5); 1792 MAYBE_SET(lockup_hack, 6); 1793 #undef MAYBE_SET 1794 1795 return 1; 1796 } 1797 1798 __setup("xirc2ps_cs=", setup_xirc2ps_cs); 1799 #endif 1800