1/* 3c509.c: A 3c509 EtherLink3 ethernet driver for linux. */ 2/* 3 Written 1993-2000 by Donald Becker. 4 5 Copyright 1994-2000 by Donald Becker. 6 Copyright 1993 United States Government as represented by the 7 Director, National Security Agency. This software may be used and 8 distributed according to the terms of the GNU General Public License, 9 incorporated herein by reference. 10 11 This driver is for the 3Com EtherLinkIII series. 12 13 The author may be reached as becker@scyld.com, or C/O 14 Scyld Computing Corporation 15 410 Severn Ave., Suite 210 16 Annapolis MD 21403 17 18 Known limitations: 19 Because of the way 3c509 ISA detection works it's difficult to predict 20 a priori which of several ISA-mode cards will be detected first. 21 22 This driver does not use predictive interrupt mode, resulting in higher 23 packet latency but lower overhead. If interrupts are disabled for an 24 unusually long time it could also result in missed packets, but in 25 practice this rarely happens. 26 27 28 FIXES: 29 Alan Cox: Removed the 'Unexpected interrupt' bug. 30 Michael Meskes: Upgraded to Donald Becker's version 1.07. 31 Alan Cox: Increased the eeprom delay. Regardless of 32 what the docs say some people definitely 33 get problems with lower (but in card spec) 34 delays 35 v1.10 4/21/97 Fixed module code so that multiple cards may be detected, 36 other cleanups. -djb 37 Andrea Arcangeli: Upgraded to Donald Becker's version 1.12. 38 Rick Payne: Fixed SMP race condition 39 v1.13 9/8/97 Made 'max_interrupt_work' an insmod-settable variable -djb 40 v1.14 10/15/97 Avoided waiting..discard message for fast machines -djb 41 v1.15 1/31/98 Faster recovery for Tx errors. -djb 42 v1.16 2/3/98 Different ID port handling to avoid sound cards. -djb 43 v1.18 12Mar2001 Andrew Morton 44 - Avoid bogus detect of 3c590's (Andrzej Krzysztofowicz) 45 - Reviewed against 1.18 from scyld.com 46 v1.18a 17Nov2001 Jeff Garzik <jgarzik@pobox.com> 47 - ethtool support 48 v1.18b 1Mar2002 Zwane Mwaikambo <zwane@commfireservices.com> 49 - Power Management support 50 v1.18c 1Mar2002 David Ruggiero <jdr@farfalle.com> 51 - Full duplex support 52 v1.19 16Oct2002 Zwane Mwaikambo <zwane@linuxpower.ca> 53 - Additional ethtool features 54 v1.19a 28Oct2002 Davud Ruggiero <jdr@farfalle.com> 55 - Increase *read_eeprom udelay to workaround oops with 2 cards. 56 v1.19b 08Nov2002 Marc Zyngier <maz@wild-wind.fr.eu.org> 57 - Introduce driver model for EISA cards. 58 v1.20 04Feb2008 Ondrej Zary <linux@rainbow-software.org> 59 - convert to isa_driver and pnp_driver and some cleanups 60*/ 61 62#define DRV_NAME "3c509" 63#define DRV_VERSION "1.20" 64#define DRV_RELDATE "04Feb2008" 65 66/* A few values that may be tweaked. */ 67 68/* Time in jiffies before concluding the transmitter is hung. */ 69#define TX_TIMEOUT (400*HZ/1000) 70 71#include <linux/module.h> 72#include <linux/mca.h> 73#include <linux/isa.h> 74#include <linux/pnp.h> 75#include <linux/string.h> 76#include <linux/interrupt.h> 77#include <linux/errno.h> 78#include <linux/in.h> 79#include <linux/ioport.h> 80#include <linux/init.h> 81#include <linux/netdevice.h> 82#include <linux/etherdevice.h> 83#include <linux/pm.h> 84#include <linux/skbuff.h> 85#include <linux/delay.h> /* for udelay() */ 86#include <linux/spinlock.h> 87#include <linux/ethtool.h> 88#include <linux/device.h> 89#include <linux/eisa.h> 90#include <linux/bitops.h> 91 92#include <asm/uaccess.h> 93#include <asm/io.h> 94#include <asm/irq.h> 95 96static char version[] __devinitdata = DRV_NAME ".c:" DRV_VERSION " " DRV_RELDATE " becker@scyld.com\n"; 97 98#ifdef EL3_DEBUG 99static int el3_debug = EL3_DEBUG; 100#else 101static int el3_debug = 2; 102#endif 103 104/* Used to do a global count of all the cards in the system. Must be 105 * a global variable so that the mca/eisa probe routines can increment 106 * it */ 107static int el3_cards = 0; 108#define EL3_MAX_CARDS 8 109 110/* To minimize the size of the driver source I only define operating 111 constants if they are used several times. You'll need the manual 112 anyway if you want to understand driver details. */ 113/* Offsets from base I/O address. */ 114#define EL3_DATA 0x00 115#define EL3_CMD 0x0e 116#define EL3_STATUS 0x0e 117#define EEPROM_READ 0x80 118 119#define EL3_IO_EXTENT 16 120 121#define EL3WINDOW(win_num) outw(SelectWindow + (win_num), ioaddr + EL3_CMD) 122 123 124/* The top five bits written to EL3_CMD are a command, the lower 125 11 bits are the parameter, if applicable. */ 126enum c509cmd { 127 TotalReset = 0<<11, SelectWindow = 1<<11, StartCoax = 2<<11, 128 RxDisable = 3<<11, RxEnable = 4<<11, RxReset = 5<<11, RxDiscard = 8<<11, 129 TxEnable = 9<<11, TxDisable = 10<<11, TxReset = 11<<11, 130 FakeIntr = 12<<11, AckIntr = 13<<11, SetIntrEnb = 14<<11, 131 SetStatusEnb = 15<<11, SetRxFilter = 16<<11, SetRxThreshold = 17<<11, 132 SetTxThreshold = 18<<11, SetTxStart = 19<<11, StatsEnable = 21<<11, 133 StatsDisable = 22<<11, StopCoax = 23<<11, PowerUp = 27<<11, 134 PowerDown = 28<<11, PowerAuto = 29<<11}; 135 136enum c509status { 137 IntLatch = 0x0001, AdapterFailure = 0x0002, TxComplete = 0x0004, 138 TxAvailable = 0x0008, RxComplete = 0x0010, RxEarly = 0x0020, 139 IntReq = 0x0040, StatsFull = 0x0080, CmdBusy = 0x1000, }; 140 141/* The SetRxFilter command accepts the following classes: */ 142enum RxFilter { 143 RxStation = 1, RxMulticast = 2, RxBroadcast = 4, RxProm = 8 }; 144 145/* Register window 1 offsets, the window used in normal operation. */ 146#define TX_FIFO 0x00 147#define RX_FIFO 0x00 148#define RX_STATUS 0x08 149#define TX_STATUS 0x0B 150#define TX_FREE 0x0C /* Remaining free bytes in Tx buffer. */ 151 152#define WN0_CONF_CTRL 0x04 /* Window 0: Configuration control register */ 153#define WN0_ADDR_CONF 0x06 /* Window 0: Address configuration register */ 154#define WN0_IRQ 0x08 /* Window 0: Set IRQ line in bits 12-15. */ 155#define WN4_MEDIA 0x0A /* Window 4: Various transcvr/media bits. */ 156#define MEDIA_TP 0x00C0 /* Enable link beat and jabber for 10baseT. */ 157#define WN4_NETDIAG 0x06 /* Window 4: Net diagnostic */ 158#define FD_ENABLE 0x8000 /* Enable full-duplex ("external loopback") */ 159 160/* 161 * Must be a power of two (we use a binary and in the 162 * circular queue) 163 */ 164#define SKB_QUEUE_SIZE 64 165 166enum el3_cardtype { EL3_ISA, EL3_PNP, EL3_MCA, EL3_EISA }; 167 168struct el3_private { 169 spinlock_t lock; 170 /* skb send-queue */ 171 int head, size; 172 struct sk_buff *queue[SKB_QUEUE_SIZE]; 173 enum el3_cardtype type; 174}; 175static int id_port; 176static int current_tag; 177static struct net_device *el3_devs[EL3_MAX_CARDS]; 178 179/* Parameters that may be passed into the module. */ 180static int debug = -1; 181static int irq[] = {-1, -1, -1, -1, -1, -1, -1, -1}; 182/* Maximum events (Rx packets, etc.) to handle at each interrupt. */ 183static int max_interrupt_work = 10; 184#ifdef CONFIG_PNP 185static int nopnp; 186#endif 187 188static int __devinit el3_common_init(struct net_device *dev); 189static void el3_common_remove(struct net_device *dev); 190static ushort id_read_eeprom(int index); 191static ushort read_eeprom(int ioaddr, int index); 192static int el3_open(struct net_device *dev); 193static netdev_tx_t el3_start_xmit(struct sk_buff *skb, struct net_device *dev); 194static irqreturn_t el3_interrupt(int irq, void *dev_id); 195static void update_stats(struct net_device *dev); 196static struct net_device_stats *el3_get_stats(struct net_device *dev); 197static int el3_rx(struct net_device *dev); 198static int el3_close(struct net_device *dev); 199static void set_multicast_list(struct net_device *dev); 200static void el3_tx_timeout (struct net_device *dev); 201static void el3_down(struct net_device *dev); 202static void el3_up(struct net_device *dev); 203static const struct ethtool_ops ethtool_ops; 204#ifdef CONFIG_PM 205static int el3_suspend(struct device *, pm_message_t); 206static int el3_resume(struct device *); 207#else 208#define el3_suspend NULL 209#define el3_resume NULL 210#endif 211 212 213/* generic device remove for all device types */ 214static int el3_device_remove (struct device *device); 215#ifdef CONFIG_NET_POLL_CONTROLLER 216static void el3_poll_controller(struct net_device *dev); 217#endif 218 219/* Return 0 on success, 1 on error, 2 when found already detected PnP card */ 220static int el3_isa_id_sequence(__be16 *phys_addr) 221{ 222 short lrs_state = 0xff; 223 int i; 224 225 /* ISA boards are detected by sending the ID sequence to the 226 ID_PORT. We find cards past the first by setting the 'current_tag' 227 on cards as they are found. Cards with their tag set will not 228 respond to subsequent ID sequences. */ 229 230 outb(0x00, id_port); 231 outb(0x00, id_port); 232 for (i = 0; i < 255; i++) { 233 outb(lrs_state, id_port); 234 lrs_state <<= 1; 235 lrs_state = lrs_state & 0x100 ? lrs_state ^ 0xcf : lrs_state; 236 } 237 /* For the first probe, clear all board's tag registers. */ 238 if (current_tag == 0) 239 outb(0xd0, id_port); 240 else /* Otherwise kill off already-found boards. */ 241 outb(0xd8, id_port); 242 if (id_read_eeprom(7) != 0x6d50) 243 return 1; 244 /* Read in EEPROM data, which does contention-select. 245 Only the lowest address board will stay "on-line". 246 3Com got the byte order backwards. */ 247 for (i = 0; i < 3; i++) 248 phys_addr[i] = htons(id_read_eeprom(i)); 249#ifdef CONFIG_PNP 250 if (!nopnp) { 251 /* The ISA PnP 3c509 cards respond to the ID sequence too. 252 This check is needed in order not to register them twice. */ 253 for (i = 0; i < el3_cards; i++) { 254 struct el3_private *lp = netdev_priv(el3_devs[i]); 255 if (lp->type == EL3_PNP && 256 !memcmp(phys_addr, el3_devs[i]->dev_addr, 257 ETH_ALEN)) { 258 if (el3_debug > 3) 259 pr_debug("3c509 with address %02x %02x %02x %02x %02x %02x was found by ISAPnP\n", 260 phys_addr[0] & 0xff, phys_addr[0] >> 8, 261 phys_addr[1] & 0xff, phys_addr[1] >> 8, 262 phys_addr[2] & 0xff, phys_addr[2] >> 8); 263 /* Set the adaptor tag so that the next card can be found. */ 264 outb(0xd0 + ++current_tag, id_port); 265 return 2; 266 } 267 } 268 } 269#endif /* CONFIG_PNP */ 270 return 0; 271 272} 273 274static void __devinit el3_dev_fill(struct net_device *dev, __be16 *phys_addr, 275 int ioaddr, int irq, int if_port, 276 enum el3_cardtype type) 277{ 278 struct el3_private *lp = netdev_priv(dev); 279 280 memcpy(dev->dev_addr, phys_addr, ETH_ALEN); 281 dev->base_addr = ioaddr; 282 dev->irq = irq; 283 dev->if_port = if_port; 284 lp->type = type; 285} 286 287static int __devinit el3_isa_match(struct device *pdev, 288 unsigned int ndev) 289{ 290 struct net_device *dev; 291 int ioaddr, isa_irq, if_port, err; 292 unsigned int iobase; 293 __be16 phys_addr[3]; 294 295 while ((err = el3_isa_id_sequence(phys_addr)) == 2) 296 ; /* Skip to next card when PnP card found */ 297 if (err == 1) 298 return 0; 299 300 iobase = id_read_eeprom(8); 301 if_port = iobase >> 14; 302 ioaddr = 0x200 + ((iobase & 0x1f) << 4); 303 if (irq[el3_cards] > 1 && irq[el3_cards] < 16) 304 isa_irq = irq[el3_cards]; 305 else 306 isa_irq = id_read_eeprom(9) >> 12; 307 308 dev = alloc_etherdev(sizeof(struct el3_private)); 309 if (!dev) 310 return -ENOMEM; 311 312 netdev_boot_setup_check(dev); 313 314 if (!request_region(ioaddr, EL3_IO_EXTENT, "3c509-isa")) { 315 free_netdev(dev); 316 return 0; 317 } 318 319 /* Set the adaptor tag so that the next card can be found. */ 320 outb(0xd0 + ++current_tag, id_port); 321 322 /* Activate the adaptor at the EEPROM location. */ 323 outb((ioaddr >> 4) | 0xe0, id_port); 324 325 EL3WINDOW(0); 326 if (inw(ioaddr) != 0x6d50) { 327 free_netdev(dev); 328 return 0; 329 } 330 331 /* Free the interrupt so that some other card can use it. */ 332 outw(0x0f00, ioaddr + WN0_IRQ); 333 334 el3_dev_fill(dev, phys_addr, ioaddr, isa_irq, if_port, EL3_ISA); 335 dev_set_drvdata(pdev, dev); 336 if (el3_common_init(dev)) { 337 free_netdev(dev); 338 return 0; 339 } 340 341 el3_devs[el3_cards++] = dev; 342 return 1; 343} 344 345static int __devexit el3_isa_remove(struct device *pdev, 346 unsigned int ndev) 347{ 348 el3_device_remove(pdev); 349 dev_set_drvdata(pdev, NULL); 350 return 0; 351} 352 353#ifdef CONFIG_PM 354static int el3_isa_suspend(struct device *dev, unsigned int n, 355 pm_message_t state) 356{ 357 current_tag = 0; 358 return el3_suspend(dev, state); 359} 360 361static int el3_isa_resume(struct device *dev, unsigned int n) 362{ 363 struct net_device *ndev = dev_get_drvdata(dev); 364 int ioaddr = ndev->base_addr, err; 365 __be16 phys_addr[3]; 366 367 while ((err = el3_isa_id_sequence(phys_addr)) == 2) 368 ; /* Skip to next card when PnP card found */ 369 if (err == 1) 370 return 0; 371 /* Set the adaptor tag so that the next card can be found. */ 372 outb(0xd0 + ++current_tag, id_port); 373 /* Enable the card */ 374 outb((ioaddr >> 4) | 0xe0, id_port); 375 EL3WINDOW(0); 376 if (inw(ioaddr) != 0x6d50) 377 return 1; 378 /* Free the interrupt so that some other card can use it. */ 379 outw(0x0f00, ioaddr + WN0_IRQ); 380 return el3_resume(dev); 381} 382#endif 383 384static struct isa_driver el3_isa_driver = { 385 .match = el3_isa_match, 386 .remove = __devexit_p(el3_isa_remove), 387#ifdef CONFIG_PM 388 .suspend = el3_isa_suspend, 389 .resume = el3_isa_resume, 390#endif 391 .driver = { 392 .name = "3c509" 393 }, 394}; 395static int isa_registered; 396 397#ifdef CONFIG_PNP 398static struct pnp_device_id el3_pnp_ids[] = { 399 { .id = "TCM5090" }, /* 3Com Etherlink III (TP) */ 400 { .id = "TCM5091" }, /* 3Com Etherlink III */ 401 { .id = "TCM5094" }, /* 3Com Etherlink III (combo) */ 402 { .id = "TCM5095" }, /* 3Com Etherlink III (TPO) */ 403 { .id = "TCM5098" }, /* 3Com Etherlink III (TPC) */ 404 { .id = "PNP80f7" }, /* 3Com Etherlink III compatible */ 405 { .id = "PNP80f8" }, /* 3Com Etherlink III compatible */ 406 { .id = "" } 407}; 408MODULE_DEVICE_TABLE(pnp, el3_pnp_ids); 409 410static int __devinit el3_pnp_probe(struct pnp_dev *pdev, 411 const struct pnp_device_id *id) 412{ 413 short i; 414 int ioaddr, irq, if_port; 415 __be16 phys_addr[3]; 416 struct net_device *dev = NULL; 417 int err; 418 419 ioaddr = pnp_port_start(pdev, 0); 420 if (!request_region(ioaddr, EL3_IO_EXTENT, "3c509-pnp")) 421 return -EBUSY; 422 irq = pnp_irq(pdev, 0); 423 EL3WINDOW(0); 424 for (i = 0; i < 3; i++) 425 phys_addr[i] = htons(read_eeprom(ioaddr, i)); 426 if_port = read_eeprom(ioaddr, 8) >> 14; 427 dev = alloc_etherdev(sizeof(struct el3_private)); 428 if (!dev) { 429 release_region(ioaddr, EL3_IO_EXTENT); 430 return -ENOMEM; 431 } 432 SET_NETDEV_DEV(dev, &pdev->dev); 433 netdev_boot_setup_check(dev); 434 435 el3_dev_fill(dev, phys_addr, ioaddr, irq, if_port, EL3_PNP); 436 pnp_set_drvdata(pdev, dev); 437 err = el3_common_init(dev); 438 439 if (err) { 440 pnp_set_drvdata(pdev, NULL); 441 free_netdev(dev); 442 return err; 443 } 444 445 el3_devs[el3_cards++] = dev; 446 return 0; 447} 448 449static void __devexit el3_pnp_remove(struct pnp_dev *pdev) 450{ 451 el3_common_remove(pnp_get_drvdata(pdev)); 452 pnp_set_drvdata(pdev, NULL); 453} 454 455#ifdef CONFIG_PM 456static int el3_pnp_suspend(struct pnp_dev *pdev, pm_message_t state) 457{ 458 return el3_suspend(&pdev->dev, state); 459} 460 461static int el3_pnp_resume(struct pnp_dev *pdev) 462{ 463 return el3_resume(&pdev->dev); 464} 465#endif 466 467static struct pnp_driver el3_pnp_driver = { 468 .name = "3c509", 469 .id_table = el3_pnp_ids, 470 .probe = el3_pnp_probe, 471 .remove = __devexit_p(el3_pnp_remove), 472#ifdef CONFIG_PM 473 .suspend = el3_pnp_suspend, 474 .resume = el3_pnp_resume, 475#endif 476}; 477static int pnp_registered; 478#endif /* CONFIG_PNP */ 479 480#ifdef CONFIG_EISA 481static struct eisa_device_id el3_eisa_ids[] = { 482 { "TCM5090" }, 483 { "TCM5091" }, 484 { "TCM5092" }, 485 { "TCM5093" }, 486 { "TCM5094" }, 487 { "TCM5095" }, 488 { "TCM5098" }, 489 { "" } 490}; 491MODULE_DEVICE_TABLE(eisa, el3_eisa_ids); 492 493static int el3_eisa_probe (struct device *device); 494 495static struct eisa_driver el3_eisa_driver = { 496 .id_table = el3_eisa_ids, 497 .driver = { 498 .name = "3c579", 499 .probe = el3_eisa_probe, 500 .remove = __devexit_p (el3_device_remove), 501 .suspend = el3_suspend, 502 .resume = el3_resume, 503 } 504}; 505static int eisa_registered; 506#endif 507 508#ifdef CONFIG_MCA 509static int el3_mca_probe(struct device *dev); 510 511static short el3_mca_adapter_ids[] __initdata = { 512 0x627c, 513 0x627d, 514 0x62db, 515 0x62f6, 516 0x62f7, 517 0x0000 518}; 519 520static char *el3_mca_adapter_names[] __initdata = { 521 "3Com 3c529 EtherLink III (10base2)", 522 "3Com 3c529 EtherLink III (10baseT)", 523 "3Com 3c529 EtherLink III (test mode)", 524 "3Com 3c529 EtherLink III (TP or coax)", 525 "3Com 3c529 EtherLink III (TP)", 526 NULL 527}; 528 529static struct mca_driver el3_mca_driver = { 530 .id_table = el3_mca_adapter_ids, 531 .driver = { 532 .name = "3c529", 533 .bus = &mca_bus_type, 534 .probe = el3_mca_probe, 535 .remove = __devexit_p(el3_device_remove), 536 .suspend = el3_suspend, 537 .resume = el3_resume, 538 }, 539}; 540static int mca_registered; 541#endif /* CONFIG_MCA */ 542 543static const struct net_device_ops netdev_ops = { 544 .ndo_open = el3_open, 545 .ndo_stop = el3_close, 546 .ndo_start_xmit = el3_start_xmit, 547 .ndo_get_stats = el3_get_stats, 548 .ndo_set_rx_mode = set_multicast_list, 549 .ndo_tx_timeout = el3_tx_timeout, 550 .ndo_change_mtu = eth_change_mtu, 551 .ndo_set_mac_address = eth_mac_addr, 552 .ndo_validate_addr = eth_validate_addr, 553#ifdef CONFIG_NET_POLL_CONTROLLER 554 .ndo_poll_controller = el3_poll_controller, 555#endif 556}; 557 558static int __devinit el3_common_init(struct net_device *dev) 559{ 560 struct el3_private *lp = netdev_priv(dev); 561 int err; 562 const char *if_names[] = {"10baseT", "AUI", "undefined", "BNC"}; 563 564 spin_lock_init(&lp->lock); 565 566 if (dev->mem_start & 0x05) { /* xcvr codes 1/3/4/12 */ 567 dev->if_port = (dev->mem_start & 0x0f); 568 } else { /* xcvr codes 0/8 */ 569 /* use eeprom value, but save user's full-duplex selection */ 570 dev->if_port |= (dev->mem_start & 0x08); 571 } 572 573 /* The EL3-specific entries in the device structure. */ 574 dev->netdev_ops = &netdev_ops; 575 dev->watchdog_timeo = TX_TIMEOUT; 576 SET_ETHTOOL_OPS(dev, ðtool_ops); 577 578 err = register_netdev(dev); 579 if (err) { 580 pr_err("Failed to register 3c5x9 at %#3.3lx, IRQ %d.\n", 581 dev->base_addr, dev->irq); 582 release_region(dev->base_addr, EL3_IO_EXTENT); 583 return err; 584 } 585 586 pr_info("%s: 3c5x9 found at %#3.3lx, %s port, address %pM, IRQ %d.\n", 587 dev->name, dev->base_addr, if_names[(dev->if_port & 0x03)], 588 dev->dev_addr, dev->irq); 589 590 if (el3_debug > 0) 591 pr_info("%s", version); 592 return 0; 593 594} 595 596static void el3_common_remove (struct net_device *dev) 597{ 598 unregister_netdev (dev); 599 release_region(dev->base_addr, EL3_IO_EXTENT); 600 free_netdev (dev); 601} 602 603#ifdef CONFIG_MCA 604static int __init el3_mca_probe(struct device *device) 605{ 606 /* Based on Erik Nygren's (nygren@mit.edu) 3c529 patch, 607 * heavily modified by Chris Beauregard 608 * (cpbeaure@csclub.uwaterloo.ca) to support standard MCA 609 * probing. 610 * 611 * redone for multi-card detection by ZP Gu (zpg@castle.net) 612 * now works as a module */ 613 614 short i; 615 int ioaddr, irq, if_port; 616 __be16 phys_addr[3]; 617 struct net_device *dev = NULL; 618 u_char pos4, pos5; 619 struct mca_device *mdev = to_mca_device(device); 620 int slot = mdev->slot; 621 int err; 622 623 pos4 = mca_device_read_stored_pos(mdev, 4); 624 pos5 = mca_device_read_stored_pos(mdev, 5); 625 626 ioaddr = ((short)((pos4&0xfc)|0x02)) << 8; 627 irq = pos5 & 0x0f; 628 629 630 pr_info("3c529: found %s at slot %d\n", 631 el3_mca_adapter_names[mdev->index], slot + 1); 632 633 /* claim the slot */ 634 strncpy(mdev->name, el3_mca_adapter_names[mdev->index], 635 sizeof(mdev->name)); 636 mca_device_set_claim(mdev, 1); 637 638 if_port = pos4 & 0x03; 639 640 irq = mca_device_transform_irq(mdev, irq); 641 ioaddr = mca_device_transform_ioport(mdev, ioaddr); 642 if (el3_debug > 2) { 643 pr_debug("3c529: irq %d ioaddr 0x%x ifport %d\n", irq, ioaddr, if_port); 644 } 645 EL3WINDOW(0); 646 for (i = 0; i < 3; i++) 647 phys_addr[i] = htons(read_eeprom(ioaddr, i)); 648 649 dev = alloc_etherdev(sizeof (struct el3_private)); 650 if (dev == NULL) { 651 release_region(ioaddr, EL3_IO_EXTENT); 652 return -ENOMEM; 653 } 654 655 netdev_boot_setup_check(dev); 656 657 el3_dev_fill(dev, phys_addr, ioaddr, irq, if_port, EL3_MCA); 658 dev_set_drvdata(device, dev); 659 err = el3_common_init(dev); 660 661 if (err) { 662 dev_set_drvdata(device, NULL); 663 free_netdev(dev); 664 return -ENOMEM; 665 } 666 667 el3_devs[el3_cards++] = dev; 668 return 0; 669} 670 671#endif /* CONFIG_MCA */ 672 673#ifdef CONFIG_EISA 674static int __init el3_eisa_probe (struct device *device) 675{ 676 short i; 677 int ioaddr, irq, if_port; 678 __be16 phys_addr[3]; 679 struct net_device *dev = NULL; 680 struct eisa_device *edev; 681 int err; 682 683 /* Yeepee, The driver framework is calling us ! */ 684 edev = to_eisa_device (device); 685 ioaddr = edev->base_addr; 686 687 if (!request_region(ioaddr, EL3_IO_EXTENT, "3c579-eisa")) 688 return -EBUSY; 689 690 /* Change the register set to the configuration window 0. */ 691 outw(SelectWindow | 0, ioaddr + 0xC80 + EL3_CMD); 692 693 irq = inw(ioaddr + WN0_IRQ) >> 12; 694 if_port = inw(ioaddr + 6)>>14; 695 for (i = 0; i < 3; i++) 696 phys_addr[i] = htons(read_eeprom(ioaddr, i)); 697 698 /* Restore the "Product ID" to the EEPROM read register. */ 699 read_eeprom(ioaddr, 3); 700 701 dev = alloc_etherdev(sizeof (struct el3_private)); 702 if (dev == NULL) { 703 release_region(ioaddr, EL3_IO_EXTENT); 704 return -ENOMEM; 705 } 706 707 netdev_boot_setup_check(dev); 708 709 el3_dev_fill(dev, phys_addr, ioaddr, irq, if_port, EL3_EISA); 710 eisa_set_drvdata (edev, dev); 711 err = el3_common_init(dev); 712 713 if (err) { 714 eisa_set_drvdata (edev, NULL); 715 free_netdev(dev); 716 return err; 717 } 718 719 el3_devs[el3_cards++] = dev; 720 return 0; 721} 722#endif 723 724/* This remove works for all device types. 725 * 726 * The net dev must be stored in the driver data field */ 727static int __devexit el3_device_remove (struct device *device) 728{ 729 struct net_device *dev; 730 731 dev = dev_get_drvdata(device); 732 733 el3_common_remove (dev); 734 return 0; 735} 736 737/* Read a word from the EEPROM using the regular EEPROM access register. 738 Assume that we are in register window zero. 739 */ 740static ushort read_eeprom(int ioaddr, int index) 741{ 742 outw(EEPROM_READ + index, ioaddr + 10); 743 /* Pause for at least 162 us. for the read to take place. 744 Some chips seem to require much longer */ 745 mdelay(2); 746 return inw(ioaddr + 12); 747} 748 749/* Read a word from the EEPROM when in the ISA ID probe state. */ 750static ushort id_read_eeprom(int index) 751{ 752 int bit, word = 0; 753 754 /* Issue read command, and pause for at least 162 us. for it to complete. 755 Assume extra-fast 16Mhz bus. */ 756 outb(EEPROM_READ + index, id_port); 757 758 /* Pause for at least 162 us. for the read to take place. */ 759 /* Some chips seem to require much longer */ 760 mdelay(4); 761 762 for (bit = 15; bit >= 0; bit--) 763 word = (word << 1) + (inb(id_port) & 0x01); 764 765 if (el3_debug > 3) 766 pr_debug(" 3c509 EEPROM word %d %#4.4x.\n", index, word); 767 768 return word; 769} 770 771 772static int 773el3_open(struct net_device *dev) 774{ 775 int ioaddr = dev->base_addr; 776 int i; 777 778 outw(TxReset, ioaddr + EL3_CMD); 779 outw(RxReset, ioaddr + EL3_CMD); 780 outw(SetStatusEnb | 0x00, ioaddr + EL3_CMD); 781 782 i = request_irq(dev->irq, el3_interrupt, 0, dev->name, dev); 783 if (i) 784 return i; 785 786 EL3WINDOW(0); 787 if (el3_debug > 3) 788 pr_debug("%s: Opening, IRQ %d status@%x %4.4x.\n", dev->name, 789 dev->irq, ioaddr + EL3_STATUS, inw(ioaddr + EL3_STATUS)); 790 791 el3_up(dev); 792 793 if (el3_debug > 3) 794 pr_debug("%s: Opened 3c509 IRQ %d status %4.4x.\n", 795 dev->name, dev->irq, inw(ioaddr + EL3_STATUS)); 796 797 return 0; 798} 799 800static void 801el3_tx_timeout (struct net_device *dev) 802{ 803 int ioaddr = dev->base_addr; 804 805 /* Transmitter timeout, serious problems. */ 806 pr_warning("%s: transmit timed out, Tx_status %2.2x status %4.4x Tx FIFO room %d.\n", 807 dev->name, inb(ioaddr + TX_STATUS), inw(ioaddr + EL3_STATUS), 808 inw(ioaddr + TX_FREE)); 809 dev->stats.tx_errors++; 810 dev->trans_start = jiffies; /* prevent tx timeout */ 811 /* Issue TX_RESET and TX_START commands. */ 812 outw(TxReset, ioaddr + EL3_CMD); 813 outw(TxEnable, ioaddr + EL3_CMD); 814 netif_wake_queue(dev); 815} 816 817 818static netdev_tx_t 819el3_start_xmit(struct sk_buff *skb, struct net_device *dev) 820{ 821 struct el3_private *lp = netdev_priv(dev); 822 int ioaddr = dev->base_addr; 823 unsigned long flags; 824 825 netif_stop_queue (dev); 826 827 dev->stats.tx_bytes += skb->len; 828 829 if (el3_debug > 4) { 830 pr_debug("%s: el3_start_xmit(length = %u) called, status %4.4x.\n", 831 dev->name, skb->len, inw(ioaddr + EL3_STATUS)); 832 } 833#if 0 834#ifndef final_version 835 { /* Error-checking code, delete someday. */ 836 ushort status = inw(ioaddr + EL3_STATUS); 837 if (status & 0x0001 && /* IRQ line active, missed one. */ 838 inw(ioaddr + EL3_STATUS) & 1) { /* Make sure. */ 839 pr_debug("%s: Missed interrupt, status then %04x now %04x" 840 " Tx %2.2x Rx %4.4x.\n", dev->name, status, 841 inw(ioaddr + EL3_STATUS), inb(ioaddr + TX_STATUS), 842 inw(ioaddr + RX_STATUS)); 843 /* Fake interrupt trigger by masking, acknowledge interrupts. */ 844 outw(SetStatusEnb | 0x00, ioaddr + EL3_CMD); 845 outw(AckIntr | IntLatch | TxAvailable | RxEarly | IntReq, 846 ioaddr + EL3_CMD); 847 outw(SetStatusEnb | 0xff, ioaddr + EL3_CMD); 848 } 849 } 850#endif 851#endif 852 /* 853 * We lock the driver against other processors. Note 854 * we don't need to lock versus the IRQ as we suspended 855 * that. This means that we lose the ability to take 856 * an RX during a TX upload. That sucks a bit with SMP 857 * on an original 3c509 (2K buffer) 858 * 859 * Using disable_irq stops us crapping on other 860 * time sensitive devices. 861 */ 862 863 spin_lock_irqsave(&lp->lock, flags); 864 865 /* Put out the doubleword header... */ 866 outw(skb->len, ioaddr + TX_FIFO); 867 outw(0x00, ioaddr + TX_FIFO); 868 /* ... and the packet rounded to a doubleword. */ 869 outsl(ioaddr + TX_FIFO, skb->data, (skb->len + 3) >> 2); 870 871 if (inw(ioaddr + TX_FREE) > 1536) 872 netif_start_queue(dev); 873 else 874 /* Interrupt us when the FIFO has room for max-sized packet. */ 875 outw(SetTxThreshold + 1536, ioaddr + EL3_CMD); 876 877 spin_unlock_irqrestore(&lp->lock, flags); 878 879 dev_kfree_skb (skb); 880 881 /* Clear the Tx status stack. */ 882 { 883 short tx_status; 884 int i = 4; 885 886 while (--i > 0 && (tx_status = inb(ioaddr + TX_STATUS)) > 0) { 887 if (tx_status & 0x38) dev->stats.tx_aborted_errors++; 888 if (tx_status & 0x30) outw(TxReset, ioaddr + EL3_CMD); 889 if (tx_status & 0x3C) outw(TxEnable, ioaddr + EL3_CMD); 890 outb(0x00, ioaddr + TX_STATUS); /* Pop the status stack. */ 891 } 892 } 893 return NETDEV_TX_OK; 894} 895 896/* The EL3 interrupt handler. */ 897static irqreturn_t 898el3_interrupt(int irq, void *dev_id) 899{ 900 struct net_device *dev = dev_id; 901 struct el3_private *lp; 902 int ioaddr, status; 903 int i = max_interrupt_work; 904 905 lp = netdev_priv(dev); 906 spin_lock(&lp->lock); 907 908 ioaddr = dev->base_addr; 909 910 if (el3_debug > 4) { 911 status = inw(ioaddr + EL3_STATUS); 912 pr_debug("%s: interrupt, status %4.4x.\n", dev->name, status); 913 } 914 915 while ((status = inw(ioaddr + EL3_STATUS)) & 916 (IntLatch | RxComplete | StatsFull)) { 917 918 if (status & RxComplete) 919 el3_rx(dev); 920 921 if (status & TxAvailable) { 922 if (el3_debug > 5) 923 pr_debug(" TX room bit was handled.\n"); 924 /* There's room in the FIFO for a full-sized packet. */ 925 outw(AckIntr | TxAvailable, ioaddr + EL3_CMD); 926 netif_wake_queue (dev); 927 } 928 if (status & (AdapterFailure | RxEarly | StatsFull | TxComplete)) { 929 /* Handle all uncommon interrupts. */ 930 if (status & StatsFull) /* Empty statistics. */ 931 update_stats(dev); 932 if (status & RxEarly) { /* Rx early is unused. */ 933 el3_rx(dev); 934 outw(AckIntr | RxEarly, ioaddr + EL3_CMD); 935 } 936 if (status & TxComplete) { /* Really Tx error. */ 937 short tx_status; 938 int i = 4; 939 940 while (--i>0 && (tx_status = inb(ioaddr + TX_STATUS)) > 0) { 941 if (tx_status & 0x38) dev->stats.tx_aborted_errors++; 942 if (tx_status & 0x30) outw(TxReset, ioaddr + EL3_CMD); 943 if (tx_status & 0x3C) outw(TxEnable, ioaddr + EL3_CMD); 944 outb(0x00, ioaddr + TX_STATUS); /* Pop the status stack. */ 945 } 946 } 947 if (status & AdapterFailure) { 948 /* Adapter failure requires Rx reset and reinit. */ 949 outw(RxReset, ioaddr + EL3_CMD); 950 /* Set the Rx filter to the current state. */ 951 outw(SetRxFilter | RxStation | RxBroadcast 952 | (dev->flags & IFF_ALLMULTI ? RxMulticast : 0) 953 | (dev->flags & IFF_PROMISC ? RxProm : 0), 954 ioaddr + EL3_CMD); 955 outw(RxEnable, ioaddr + EL3_CMD); /* Re-enable the receiver. */ 956 outw(AckIntr | AdapterFailure, ioaddr + EL3_CMD); 957 } 958 } 959 960 if (--i < 0) { 961 pr_err("%s: Infinite loop in interrupt, status %4.4x.\n", 962 dev->name, status); 963 /* Clear all interrupts. */ 964 outw(AckIntr | 0xFF, ioaddr + EL3_CMD); 965 break; 966 } 967 /* Acknowledge the IRQ. */ 968 outw(AckIntr | IntReq | IntLatch, ioaddr + EL3_CMD); /* Ack IRQ */ 969 } 970 971 if (el3_debug > 4) { 972 pr_debug("%s: exiting interrupt, status %4.4x.\n", dev->name, 973 inw(ioaddr + EL3_STATUS)); 974 } 975 spin_unlock(&lp->lock); 976 return IRQ_HANDLED; 977} 978 979 980#ifdef CONFIG_NET_POLL_CONTROLLER 981/* 982 * Polling receive - used by netconsole and other diagnostic tools 983 * to allow network i/o with interrupts disabled. 984 */ 985static void el3_poll_controller(struct net_device *dev) 986{ 987 disable_irq(dev->irq); 988 el3_interrupt(dev->irq, dev); 989 enable_irq(dev->irq); 990} 991#endif 992 993static struct net_device_stats * 994el3_get_stats(struct net_device *dev) 995{ 996 struct el3_private *lp = netdev_priv(dev); 997 unsigned long flags; 998 999 /* 1000 * This is fast enough not to bother with disable IRQ 1001 * stuff. 1002 */ 1003 1004 spin_lock_irqsave(&lp->lock, flags); 1005 update_stats(dev); 1006 spin_unlock_irqrestore(&lp->lock, flags); 1007 return &dev->stats; 1008} 1009 1010/* Update statistics. We change to register window 6, so this should be run 1011 single-threaded if the device is active. This is expected to be a rare 1012 operation, and it's simpler for the rest of the driver to assume that 1013 window 1 is always valid rather than use a special window-state variable. 1014 */ 1015static void update_stats(struct net_device *dev) 1016{ 1017 int ioaddr = dev->base_addr; 1018 1019 if (el3_debug > 5) 1020 pr_debug(" Updating the statistics.\n"); 1021 /* Turn off statistics updates while reading. */ 1022 outw(StatsDisable, ioaddr + EL3_CMD); 1023 /* Switch to the stats window, and read everything. */ 1024 EL3WINDOW(6); 1025 dev->stats.tx_carrier_errors += inb(ioaddr + 0); 1026 dev->stats.tx_heartbeat_errors += inb(ioaddr + 1); 1027 /* Multiple collisions. */ inb(ioaddr + 2); 1028 dev->stats.collisions += inb(ioaddr + 3); 1029 dev->stats.tx_window_errors += inb(ioaddr + 4); 1030 dev->stats.rx_fifo_errors += inb(ioaddr + 5); 1031 dev->stats.tx_packets += inb(ioaddr + 6); 1032 /* Rx packets */ inb(ioaddr + 7); 1033 /* Tx deferrals */ inb(ioaddr + 8); 1034 inw(ioaddr + 10); /* Total Rx and Tx octets. */ 1035 inw(ioaddr + 12); 1036 1037 /* Back to window 1, and turn statistics back on. */ 1038 EL3WINDOW(1); 1039 outw(StatsEnable, ioaddr + EL3_CMD); 1040} 1041 1042static int 1043el3_rx(struct net_device *dev) 1044{ 1045 int ioaddr = dev->base_addr; 1046 short rx_status; 1047 1048 if (el3_debug > 5) 1049 pr_debug(" In rx_packet(), status %4.4x, rx_status %4.4x.\n", 1050 inw(ioaddr+EL3_STATUS), inw(ioaddr+RX_STATUS)); 1051 while ((rx_status = inw(ioaddr + RX_STATUS)) > 0) { 1052 if (rx_status & 0x4000) { /* Error, update stats. */ 1053 short error = rx_status & 0x3800; 1054 1055 outw(RxDiscard, ioaddr + EL3_CMD); 1056 dev->stats.rx_errors++; 1057 switch (error) { 1058 case 0x0000: dev->stats.rx_over_errors++; break; 1059 case 0x0800: dev->stats.rx_length_errors++; break; 1060 case 0x1000: dev->stats.rx_frame_errors++; break; 1061 case 0x1800: dev->stats.rx_length_errors++; break; 1062 case 0x2000: dev->stats.rx_frame_errors++; break; 1063 case 0x2800: dev->stats.rx_crc_errors++; break; 1064 } 1065 } else { 1066 short pkt_len = rx_status & 0x7ff; 1067 struct sk_buff *skb; 1068 1069 skb = netdev_alloc_skb(dev, pkt_len + 5); 1070 if (el3_debug > 4) 1071 pr_debug("Receiving packet size %d status %4.4x.\n", 1072 pkt_len, rx_status); 1073 if (skb != NULL) { 1074 skb_reserve(skb, 2); /* Align IP on 16 byte */ 1075 1076 /* 'skb->data' points to the start of sk_buff data area. */ 1077 insl(ioaddr + RX_FIFO, skb_put(skb,pkt_len), 1078 (pkt_len + 3) >> 2); 1079 1080 outw(RxDiscard, ioaddr + EL3_CMD); /* Pop top Rx packet. */ 1081 skb->protocol = eth_type_trans(skb,dev); 1082 netif_rx(skb); 1083 dev->stats.rx_bytes += pkt_len; 1084 dev->stats.rx_packets++; 1085 continue; 1086 } 1087 outw(RxDiscard, ioaddr + EL3_CMD); 1088 dev->stats.rx_dropped++; 1089 if (el3_debug) 1090 pr_debug("%s: Couldn't allocate a sk_buff of size %d.\n", 1091 dev->name, pkt_len); 1092 } 1093 inw(ioaddr + EL3_STATUS); /* Delay. */ 1094 while (inw(ioaddr + EL3_STATUS) & 0x1000) 1095 pr_debug(" Waiting for 3c509 to discard packet, status %x.\n", 1096 inw(ioaddr + EL3_STATUS) ); 1097 } 1098 1099 return 0; 1100} 1101 1102/* 1103 * Set or clear the multicast filter for this adaptor. 1104 */ 1105static void 1106set_multicast_list(struct net_device *dev) 1107{ 1108 unsigned long flags; 1109 struct el3_private *lp = netdev_priv(dev); 1110 int ioaddr = dev->base_addr; 1111 int mc_count = netdev_mc_count(dev); 1112 1113 if (el3_debug > 1) { 1114 static int old; 1115 if (old != mc_count) { 1116 old = mc_count; 1117 pr_debug("%s: Setting Rx mode to %d addresses.\n", 1118 dev->name, mc_count); 1119 } 1120 } 1121 spin_lock_irqsave(&lp->lock, flags); 1122 if (dev->flags&IFF_PROMISC) { 1123 outw(SetRxFilter | RxStation | RxMulticast | RxBroadcast | RxProm, 1124 ioaddr + EL3_CMD); 1125 } 1126 else if (mc_count || (dev->flags&IFF_ALLMULTI)) { 1127 outw(SetRxFilter | RxStation | RxMulticast | RxBroadcast, ioaddr + EL3_CMD); 1128 } 1129 else 1130 outw(SetRxFilter | RxStation | RxBroadcast, ioaddr + EL3_CMD); 1131 spin_unlock_irqrestore(&lp->lock, flags); 1132} 1133 1134static int 1135el3_close(struct net_device *dev) 1136{ 1137 int ioaddr = dev->base_addr; 1138 struct el3_private *lp = netdev_priv(dev); 1139 1140 if (el3_debug > 2) 1141 pr_debug("%s: Shutting down ethercard.\n", dev->name); 1142 1143 el3_down(dev); 1144 1145 free_irq(dev->irq, dev); 1146 /* Switching back to window 0 disables the IRQ. */ 1147 EL3WINDOW(0); 1148 if (lp->type != EL3_EISA) { 1149 /* But we explicitly zero the IRQ line select anyway. Don't do 1150 * it on EISA cards, it prevents the module from getting an 1151 * IRQ after unload+reload... */ 1152 outw(0x0f00, ioaddr + WN0_IRQ); 1153 } 1154 1155 return 0; 1156} 1157 1158static int 1159el3_link_ok(struct net_device *dev) 1160{ 1161 int ioaddr = dev->base_addr; 1162 u16 tmp; 1163 1164 EL3WINDOW(4); 1165 tmp = inw(ioaddr + WN4_MEDIA); 1166 EL3WINDOW(1); 1167 return tmp & (1<<11); 1168} 1169 1170static int 1171el3_netdev_get_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd) 1172{ 1173 u16 tmp; 1174 int ioaddr = dev->base_addr; 1175 1176 EL3WINDOW(0); 1177 /* obtain current transceiver via WN4_MEDIA? */ 1178 tmp = inw(ioaddr + WN0_ADDR_CONF); 1179 ecmd->transceiver = XCVR_INTERNAL; 1180 switch (tmp >> 14) { 1181 case 0: 1182 ecmd->port = PORT_TP; 1183 break; 1184 case 1: 1185 ecmd->port = PORT_AUI; 1186 ecmd->transceiver = XCVR_EXTERNAL; 1187 break; 1188 case 3: 1189 ecmd->port = PORT_BNC; 1190 default: 1191 break; 1192 } 1193 1194 ecmd->duplex = DUPLEX_HALF; 1195 ecmd->supported = 0; 1196 tmp = inw(ioaddr + WN0_CONF_CTRL); 1197 if (tmp & (1<<13)) 1198 ecmd->supported |= SUPPORTED_AUI; 1199 if (tmp & (1<<12)) 1200 ecmd->supported |= SUPPORTED_BNC; 1201 if (tmp & (1<<9)) { 1202 ecmd->supported |= SUPPORTED_TP | SUPPORTED_10baseT_Half | 1203 SUPPORTED_10baseT_Full; /* hmm... */ 1204 EL3WINDOW(4); 1205 tmp = inw(ioaddr + WN4_NETDIAG); 1206 if (tmp & FD_ENABLE) 1207 ecmd->duplex = DUPLEX_FULL; 1208 } 1209 1210 ethtool_cmd_speed_set(ecmd, SPEED_10); 1211 EL3WINDOW(1); 1212 return 0; 1213} 1214 1215static int 1216el3_netdev_set_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd) 1217{ 1218 u16 tmp; 1219 int ioaddr = dev->base_addr; 1220 1221 if (ecmd->speed != SPEED_10) 1222 return -EINVAL; 1223 if ((ecmd->duplex != DUPLEX_HALF) && (ecmd->duplex != DUPLEX_FULL)) 1224 return -EINVAL; 1225 if ((ecmd->transceiver != XCVR_INTERNAL) && (ecmd->transceiver != XCVR_EXTERNAL)) 1226 return -EINVAL; 1227 1228 /* change XCVR type */ 1229 EL3WINDOW(0); 1230 tmp = inw(ioaddr + WN0_ADDR_CONF); 1231 switch (ecmd->port) { 1232 case PORT_TP: 1233 tmp &= ~(3<<14); 1234 dev->if_port = 0; 1235 break; 1236 case PORT_AUI: 1237 tmp |= (1<<14); 1238 dev->if_port = 1; 1239 break; 1240 case PORT_BNC: 1241 tmp |= (3<<14); 1242 dev->if_port = 3; 1243 break; 1244 default: 1245 return -EINVAL; 1246 } 1247 1248 outw(tmp, ioaddr + WN0_ADDR_CONF); 1249 if (dev->if_port == 3) { 1250 /* fire up the DC-DC convertor if BNC gets enabled */ 1251 tmp = inw(ioaddr + WN0_ADDR_CONF); 1252 if (tmp & (3 << 14)) { 1253 outw(StartCoax, ioaddr + EL3_CMD); 1254 udelay(800); 1255 } else 1256 return -EIO; 1257 } 1258 1259 EL3WINDOW(4); 1260 tmp = inw(ioaddr + WN4_NETDIAG); 1261 if (ecmd->duplex == DUPLEX_FULL) 1262 tmp |= FD_ENABLE; 1263 else 1264 tmp &= ~FD_ENABLE; 1265 outw(tmp, ioaddr + WN4_NETDIAG); 1266 EL3WINDOW(1); 1267 1268 return 0; 1269} 1270 1271static void el3_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) 1272{ 1273 strcpy(info->driver, DRV_NAME); 1274 strcpy(info->version, DRV_VERSION); 1275} 1276 1277static int el3_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd) 1278{ 1279 struct el3_private *lp = netdev_priv(dev); 1280 int ret; 1281 1282 spin_lock_irq(&lp->lock); 1283 ret = el3_netdev_get_ecmd(dev, ecmd); 1284 spin_unlock_irq(&lp->lock); 1285 return ret; 1286} 1287 1288static int el3_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd) 1289{ 1290 struct el3_private *lp = netdev_priv(dev); 1291 int ret; 1292 1293 spin_lock_irq(&lp->lock); 1294 ret = el3_netdev_set_ecmd(dev, ecmd); 1295 spin_unlock_irq(&lp->lock); 1296 return ret; 1297} 1298 1299static u32 el3_get_link(struct net_device *dev) 1300{ 1301 struct el3_private *lp = netdev_priv(dev); 1302 u32 ret; 1303 1304 spin_lock_irq(&lp->lock); 1305 ret = el3_link_ok(dev); 1306 spin_unlock_irq(&lp->lock); 1307 return ret; 1308} 1309 1310static u32 el3_get_msglevel(struct net_device *dev) 1311{ 1312 return el3_debug; 1313} 1314 1315static void el3_set_msglevel(struct net_device *dev, u32 v) 1316{ 1317 el3_debug = v; 1318} 1319 1320static const struct ethtool_ops ethtool_ops = { 1321 .get_drvinfo = el3_get_drvinfo, 1322 .get_settings = el3_get_settings, 1323 .set_settings = el3_set_settings, 1324 .get_link = el3_get_link, 1325 .get_msglevel = el3_get_msglevel, 1326 .set_msglevel = el3_set_msglevel, 1327}; 1328 1329static void 1330el3_down(struct net_device *dev) 1331{ 1332 int ioaddr = dev->base_addr; 1333 1334 netif_stop_queue(dev); 1335 1336 /* Turn off statistics ASAP. We update lp->stats below. */ 1337 outw(StatsDisable, ioaddr + EL3_CMD); 1338 1339 /* Disable the receiver and transmitter. */ 1340 outw(RxDisable, ioaddr + EL3_CMD); 1341 outw(TxDisable, ioaddr + EL3_CMD); 1342 1343 if (dev->if_port == 3) 1344 /* Turn off thinnet power. Green! */ 1345 outw(StopCoax, ioaddr + EL3_CMD); 1346 else if (dev->if_port == 0) { 1347 /* Disable link beat and jabber, if_port may change here next open(). */ 1348 EL3WINDOW(4); 1349 outw(inw(ioaddr + WN4_MEDIA) & ~MEDIA_TP, ioaddr + WN4_MEDIA); 1350 } 1351 1352 outw(SetIntrEnb | 0x0000, ioaddr + EL3_CMD); 1353 1354 update_stats(dev); 1355} 1356 1357static void 1358el3_up(struct net_device *dev) 1359{ 1360 int i, sw_info, net_diag; 1361 int ioaddr = dev->base_addr; 1362 1363 /* Activating the board required and does no harm otherwise */ 1364 outw(0x0001, ioaddr + 4); 1365 1366 /* Set the IRQ line. */ 1367 outw((dev->irq << 12) | 0x0f00, ioaddr + WN0_IRQ); 1368 1369 /* Set the station address in window 2 each time opened. */ 1370 EL3WINDOW(2); 1371 1372 for (i = 0; i < 6; i++) 1373 outb(dev->dev_addr[i], ioaddr + i); 1374 1375 if ((dev->if_port & 0x03) == 3) /* BNC interface */ 1376 /* Start the thinnet transceiver. We should really wait 50ms...*/ 1377 outw(StartCoax, ioaddr + EL3_CMD); 1378 else if ((dev->if_port & 0x03) == 0) { /* 10baseT interface */ 1379 /* Combine secondary sw_info word (the adapter level) and primary 1380 sw_info word (duplex setting plus other useless bits) */ 1381 EL3WINDOW(0); 1382 sw_info = (read_eeprom(ioaddr, 0x14) & 0x400f) | 1383 (read_eeprom(ioaddr, 0x0d) & 0xBff0); 1384 1385 EL3WINDOW(4); 1386 net_diag = inw(ioaddr + WN4_NETDIAG); 1387 net_diag = (net_diag | FD_ENABLE); /* temporarily assume full-duplex will be set */ 1388 pr_info("%s: ", dev->name); 1389 switch (dev->if_port & 0x0c) { 1390 case 12: 1391 /* force full-duplex mode if 3c5x9b */ 1392 if (sw_info & 0x000f) { 1393 pr_cont("Forcing 3c5x9b full-duplex mode"); 1394 break; 1395 } 1396 case 8: 1397 /* set full-duplex mode based on eeprom config setting */ 1398 if ((sw_info & 0x000f) && (sw_info & 0x8000)) { 1399 pr_cont("Setting 3c5x9b full-duplex mode (from EEPROM configuration bit)"); 1400 break; 1401 } 1402 default: 1403 /* xcvr=(0 || 4) OR user has an old 3c5x9 non "B" model */ 1404 pr_cont("Setting 3c5x9/3c5x9B half-duplex mode"); 1405 net_diag = (net_diag & ~FD_ENABLE); /* disable full duplex */ 1406 } 1407 1408 outw(net_diag, ioaddr + WN4_NETDIAG); 1409 pr_cont(" if_port: %d, sw_info: %4.4x\n", dev->if_port, sw_info); 1410 if (el3_debug > 3) 1411 pr_debug("%s: 3c5x9 net diag word is now: %4.4x.\n", dev->name, net_diag); 1412 /* Enable link beat and jabber check. */ 1413 outw(inw(ioaddr + WN4_MEDIA) | MEDIA_TP, ioaddr + WN4_MEDIA); 1414 } 1415 1416 /* Switch to the stats window, and clear all stats by reading. */ 1417 outw(StatsDisable, ioaddr + EL3_CMD); 1418 EL3WINDOW(6); 1419 for (i = 0; i < 9; i++) 1420 inb(ioaddr + i); 1421 inw(ioaddr + 10); 1422 inw(ioaddr + 12); 1423 1424 /* Switch to register set 1 for normal use. */ 1425 EL3WINDOW(1); 1426 1427 /* Accept b-case and phys addr only. */ 1428 outw(SetRxFilter | RxStation | RxBroadcast, ioaddr + EL3_CMD); 1429 outw(StatsEnable, ioaddr + EL3_CMD); /* Turn on statistics. */ 1430 1431 outw(RxEnable, ioaddr + EL3_CMD); /* Enable the receiver. */ 1432 outw(TxEnable, ioaddr + EL3_CMD); /* Enable transmitter. */ 1433 /* Allow status bits to be seen. */ 1434 outw(SetStatusEnb | 0xff, ioaddr + EL3_CMD); 1435 /* Ack all pending events, and set active indicator mask. */ 1436 outw(AckIntr | IntLatch | TxAvailable | RxEarly | IntReq, 1437 ioaddr + EL3_CMD); 1438 outw(SetIntrEnb | IntLatch|TxAvailable|TxComplete|RxComplete|StatsFull, 1439 ioaddr + EL3_CMD); 1440 1441 netif_start_queue(dev); 1442} 1443 1444/* Power Management support functions */ 1445#ifdef CONFIG_PM 1446 1447static int 1448el3_suspend(struct device *pdev, pm_message_t state) 1449{ 1450 unsigned long flags; 1451 struct net_device *dev; 1452 struct el3_private *lp; 1453 int ioaddr; 1454 1455 dev = dev_get_drvdata(pdev); 1456 lp = netdev_priv(dev); 1457 ioaddr = dev->base_addr; 1458 1459 spin_lock_irqsave(&lp->lock, flags); 1460 1461 if (netif_running(dev)) 1462 netif_device_detach(dev); 1463 1464 el3_down(dev); 1465 outw(PowerDown, ioaddr + EL3_CMD); 1466 1467 spin_unlock_irqrestore(&lp->lock, flags); 1468 return 0; 1469} 1470 1471static int 1472el3_resume(struct device *pdev) 1473{ 1474 unsigned long flags; 1475 struct net_device *dev; 1476 struct el3_private *lp; 1477 int ioaddr; 1478 1479 dev = dev_get_drvdata(pdev); 1480 lp = netdev_priv(dev); 1481 ioaddr = dev->base_addr; 1482 1483 spin_lock_irqsave(&lp->lock, flags); 1484 1485 outw(PowerUp, ioaddr + EL3_CMD); 1486 EL3WINDOW(0); 1487 el3_up(dev); 1488 1489 if (netif_running(dev)) 1490 netif_device_attach(dev); 1491 1492 spin_unlock_irqrestore(&lp->lock, flags); 1493 return 0; 1494} 1495 1496#endif /* CONFIG_PM */ 1497 1498module_param(debug,int, 0); 1499module_param_array(irq, int, NULL, 0); 1500module_param(max_interrupt_work, int, 0); 1501MODULE_PARM_DESC(debug, "debug level (0-6)"); 1502MODULE_PARM_DESC(irq, "IRQ number(s) (assigned)"); 1503MODULE_PARM_DESC(max_interrupt_work, "maximum events handled per interrupt"); 1504#ifdef CONFIG_PNP 1505module_param(nopnp, int, 0); 1506MODULE_PARM_DESC(nopnp, "disable ISA PnP support (0-1)"); 1507#endif /* CONFIG_PNP */ 1508MODULE_DESCRIPTION("3Com Etherlink III (3c509, 3c509B, 3c529, 3c579) ethernet driver"); 1509MODULE_LICENSE("GPL"); 1510 1511static int __init el3_init_module(void) 1512{ 1513 int ret = 0; 1514 1515 if (debug >= 0) 1516 el3_debug = debug; 1517 1518#ifdef CONFIG_PNP 1519 if (!nopnp) { 1520 ret = pnp_register_driver(&el3_pnp_driver); 1521 if (!ret) 1522 pnp_registered = 1; 1523 } 1524#endif 1525 /* Select an open I/O location at 0x1*0 to do ISA contention select. */ 1526 /* Start with 0x110 to avoid some sound cards.*/ 1527 for (id_port = 0x110 ; id_port < 0x200; id_port += 0x10) { 1528 if (!request_region(id_port, 1, "3c509-control")) 1529 continue; 1530 outb(0x00, id_port); 1531 outb(0xff, id_port); 1532 if (inb(id_port) & 0x01) 1533 break; 1534 else 1535 release_region(id_port, 1); 1536 } 1537 if (id_port >= 0x200) { 1538 id_port = 0; 1539 pr_err("No I/O port available for 3c509 activation.\n"); 1540 } else { 1541 ret = isa_register_driver(&el3_isa_driver, EL3_MAX_CARDS); 1542 if (!ret) 1543 isa_registered = 1; 1544 } 1545#ifdef CONFIG_EISA 1546 ret = eisa_driver_register(&el3_eisa_driver); 1547 if (!ret) 1548 eisa_registered = 1; 1549#endif 1550#ifdef CONFIG_MCA 1551 ret = mca_register_driver(&el3_mca_driver); 1552 if (!ret) 1553 mca_registered = 1; 1554#endif 1555 1556#ifdef CONFIG_PNP 1557 if (pnp_registered) 1558 ret = 0; 1559#endif 1560 if (isa_registered) 1561 ret = 0; 1562#ifdef CONFIG_EISA 1563 if (eisa_registered) 1564 ret = 0; 1565#endif 1566#ifdef CONFIG_MCA 1567 if (mca_registered) 1568 ret = 0; 1569#endif 1570 return ret; 1571} 1572 1573static void __exit el3_cleanup_module(void) 1574{ 1575#ifdef CONFIG_PNP 1576 if (pnp_registered) 1577 pnp_unregister_driver(&el3_pnp_driver); 1578#endif 1579 if (isa_registered) 1580 isa_unregister_driver(&el3_isa_driver); 1581 if (id_port) 1582 release_region(id_port, 1); 1583#ifdef CONFIG_EISA 1584 if (eisa_registered) 1585 eisa_driver_unregister(&el3_eisa_driver); 1586#endif 1587#ifdef CONFIG_MCA 1588 if (mca_registered) 1589 mca_unregister_driver(&el3_mca_driver); 1590#endif 1591} 1592 1593module_init (el3_init_module); 1594module_exit (el3_cleanup_module); 1595