1/*====================================================================== 2 3 A PCMCIA ethernet driver for SMC91c92-based cards. 4 5 This driver supports Megahertz PCMCIA ethernet cards; and 6 Megahertz, Motorola, Ositech, and Psion Dacom ethernet/modem 7 multifunction cards. 8 9 Copyright (C) 1999 David A. Hinds -- dahinds@users.sourceforge.net 10 11 smc91c92_cs.c 1.122 2002/10/25 06:26:39 12 13 This driver contains code written by Donald Becker 14 (becker@scyld.com), Rowan Hughes (x-csrdh@jcu.edu.au), 15 David Hinds (dahinds@users.sourceforge.net), and Erik Stahlman 16 (erik@vt.edu). Donald wrote the SMC 91c92 code using parts of 17 Erik's SMC 91c94 driver. Rowan wrote a similar driver, and I've 18 incorporated some parts of his driver here. I (Dave) wrote most 19 of the PCMCIA glue code, and the Ositech support code. Kelly 20 Stephens (kstephen@holli.com) added support for the Motorola 21 Mariner, with help from Allen Brost. 22 23 This software may be used and distributed according to the terms of 24 the GNU General Public License, incorporated herein by reference. 25 26======================================================================*/ 27 28#include <linux/module.h> 29#include <linux/kernel.h> 30#include <linux/init.h> 31#include <linux/slab.h> 32#include <linux/string.h> 33#include <linux/timer.h> 34#include <linux/interrupt.h> 35#include <linux/delay.h> 36#include <linux/crc32.h> 37#include <linux/netdevice.h> 38#include <linux/etherdevice.h> 39#include <linux/skbuff.h> 40#include <linux/if_arp.h> 41#include <linux/ioport.h> 42#include <linux/ethtool.h> 43#include <linux/mii.h> 44#include <linux/jiffies.h> 45#include <linux/firmware.h> 46 47#include <pcmcia/cs.h> 48#include <pcmcia/cistpl.h> 49#include <pcmcia/cisreg.h> 50#include <pcmcia/ciscode.h> 51#include <pcmcia/ds.h> 52#include <pcmcia/ss.h> 53 54#include <asm/io.h> 55#include <asm/system.h> 56#include <asm/uaccess.h> 57 58/*====================================================================*/ 59 60static const char *if_names[] = { "auto", "10baseT", "10base2"}; 61 62/* Firmware name */ 63#define FIRMWARE_NAME "ositech/Xilinx7OD.bin" 64 65/* Module parameters */ 66 67MODULE_DESCRIPTION("SMC 91c92 series PCMCIA ethernet driver"); 68MODULE_LICENSE("GPL"); 69MODULE_FIRMWARE(FIRMWARE_NAME); 70 71#define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0) 72 73/* 74 Transceiver/media type. 75 0 = auto 76 1 = 10baseT (and autoselect if #define AUTOSELECT), 77 2 = AUI/10base2, 78*/ 79INT_MODULE_PARM(if_port, 0); 80 81 82#define DRV_NAME "smc91c92_cs" 83#define DRV_VERSION "1.123" 84 85/*====================================================================*/ 86 87/* Operational parameter that usually are not changed. */ 88 89/* Time in jiffies before concluding Tx hung */ 90#define TX_TIMEOUT ((400*HZ)/1000) 91 92/* Maximum events (Rx packets, etc.) to handle at each interrupt. */ 93#define INTR_WORK 4 94 95/* Times to check the check the chip before concluding that it doesn't 96 currently have room for another Tx packet. */ 97#define MEMORY_WAIT_TIME 8 98 99struct smc_private { 100 struct pcmcia_device *p_dev; 101 spinlock_t lock; 102 u_short manfid; 103 u_short cardid; 104 105 struct sk_buff *saved_skb; 106 int packets_waiting; 107 void __iomem *base; 108 u_short cfg; 109 struct timer_list media; 110 int watchdog, tx_err; 111 u_short media_status; 112 u_short fast_poll; 113 u_short link_status; 114 struct mii_if_info mii_if; 115 int duplex; 116 int rx_ovrn; 117}; 118 119/* Special definitions for Megahertz multifunction cards */ 120#define MEGAHERTZ_ISR 0x0380 121 122/* Special function registers for Motorola Mariner */ 123#define MOT_LAN 0x0000 124#define MOT_UART 0x0020 125#define MOT_EEPROM 0x20 126 127#define MOT_NORMAL \ 128(COR_LEVEL_REQ | COR_FUNC_ENA | COR_ADDR_DECODE | COR_IREQ_ENA) 129 130/* Special function registers for Ositech cards */ 131#define OSITECH_AUI_CTL 0x0c 132#define OSITECH_PWRDOWN 0x0d 133#define OSITECH_RESET 0x0e 134#define OSITECH_ISR 0x0f 135#define OSITECH_AUI_PWR 0x0c 136#define OSITECH_RESET_ISR 0x0e 137 138#define OSI_AUI_PWR 0x40 139#define OSI_LAN_PWRDOWN 0x02 140#define OSI_MODEM_PWRDOWN 0x01 141#define OSI_LAN_RESET 0x02 142#define OSI_MODEM_RESET 0x01 143 144/* Symbolic constants for the SMC91c9* series chips, from Erik Stahlman. */ 145#define BANK_SELECT 14 /* Window select register. */ 146#define SMC_SELECT_BANK(x) { outw(x, ioaddr + BANK_SELECT); } 147 148/* Bank 0 registers. */ 149#define TCR 0 /* transmit control register */ 150#define TCR_CLEAR 0 /* do NOTHING */ 151#define TCR_ENABLE 0x0001 /* if this is 1, we can transmit */ 152#define TCR_PAD_EN 0x0080 /* pads short packets to 64 bytes */ 153#define TCR_MONCSN 0x0400 /* Monitor Carrier. */ 154#define TCR_FDUPLX 0x0800 /* Full duplex mode. */ 155#define TCR_NORMAL TCR_ENABLE | TCR_PAD_EN 156 157#define EPH 2 /* Ethernet Protocol Handler report. */ 158#define EPH_TX_SUC 0x0001 159#define EPH_SNGLCOL 0x0002 160#define EPH_MULCOL 0x0004 161#define EPH_LTX_MULT 0x0008 162#define EPH_16COL 0x0010 163#define EPH_SQET 0x0020 164#define EPH_LTX_BRD 0x0040 165#define EPH_TX_DEFR 0x0080 166#define EPH_LAT_COL 0x0200 167#define EPH_LOST_CAR 0x0400 168#define EPH_EXC_DEF 0x0800 169#define EPH_CTR_ROL 0x1000 170#define EPH_RX_OVRN 0x2000 171#define EPH_LINK_OK 0x4000 172#define EPH_TX_UNRN 0x8000 173#define MEMINFO 8 /* Memory Information Register */ 174#define MEMCFG 10 /* Memory Configuration Register */ 175 176/* Bank 1 registers. */ 177#define CONFIG 0 178#define CFG_MII_SELECT 0x8000 /* 91C100 only */ 179#define CFG_NO_WAIT 0x1000 180#define CFG_FULL_STEP 0x0400 181#define CFG_SET_SQLCH 0x0200 182#define CFG_AUI_SELECT 0x0100 183#define CFG_16BIT 0x0080 184#define CFG_DIS_LINK 0x0040 185#define CFG_STATIC 0x0030 186#define CFG_IRQ_SEL_1 0x0004 187#define CFG_IRQ_SEL_0 0x0002 188#define BASE_ADDR 2 189#define ADDR0 4 190#define GENERAL 10 191#define CONTROL 12 192#define CTL_STORE 0x0001 193#define CTL_RELOAD 0x0002 194#define CTL_EE_SELECT 0x0004 195#define CTL_TE_ENABLE 0x0020 196#define CTL_CR_ENABLE 0x0040 197#define CTL_LE_ENABLE 0x0080 198#define CTL_AUTO_RELEASE 0x0800 199#define CTL_POWERDOWN 0x2000 200 201/* Bank 2 registers. */ 202#define MMU_CMD 0 203#define MC_ALLOC 0x20 /* or with number of 256 byte packets */ 204#define MC_RESET 0x40 205#define MC_RELEASE 0x80 /* remove and release the current rx packet */ 206#define MC_FREEPKT 0xA0 /* Release packet in PNR register */ 207#define MC_ENQUEUE 0xC0 /* Enqueue the packet for transmit */ 208#define PNR_ARR 2 209#define FIFO_PORTS 4 210#define FP_RXEMPTY 0x8000 211#define POINTER 6 212#define PTR_AUTO_INC 0x0040 213#define PTR_READ 0x2000 214#define PTR_AUTOINC 0x4000 215#define PTR_RCV 0x8000 216#define DATA_1 8 217#define INTERRUPT 12 218#define IM_RCV_INT 0x1 219#define IM_TX_INT 0x2 220#define IM_TX_EMPTY_INT 0x4 221#define IM_ALLOC_INT 0x8 222#define IM_RX_OVRN_INT 0x10 223#define IM_EPH_INT 0x20 224 225#define RCR 4 226enum RxCfg { RxAllMulti = 0x0004, RxPromisc = 0x0002, 227 RxEnable = 0x0100, RxStripCRC = 0x0200}; 228#define RCR_SOFTRESET 0x8000 /* resets the chip */ 229#define RCR_STRIP_CRC 0x200 /* strips CRC */ 230#define RCR_ENABLE 0x100 /* IFF this is set, we can receive packets */ 231#define RCR_ALMUL 0x4 /* receive all multicast packets */ 232#define RCR_PROMISC 0x2 /* enable promiscuous mode */ 233 234/* the normal settings for the RCR register : */ 235#define RCR_NORMAL (RCR_STRIP_CRC | RCR_ENABLE) 236#define RCR_CLEAR 0x0 /* set it to a base state */ 237#define COUNTER 6 238 239/* BANK 3 -- not the same values as in smc9194! */ 240#define MULTICAST0 0 241#define MULTICAST2 2 242#define MULTICAST4 4 243#define MULTICAST6 6 244#define MGMT 8 245#define REVISION 0x0a 246 247/* Transmit status bits. */ 248#define TS_SUCCESS 0x0001 249#define TS_16COL 0x0010 250#define TS_LATCOL 0x0200 251#define TS_LOSTCAR 0x0400 252 253/* Receive status bits. */ 254#define RS_ALGNERR 0x8000 255#define RS_BADCRC 0x2000 256#define RS_ODDFRAME 0x1000 257#define RS_TOOLONG 0x0800 258#define RS_TOOSHORT 0x0400 259#define RS_MULTICAST 0x0001 260#define RS_ERRORS (RS_ALGNERR | RS_BADCRC | RS_TOOLONG | RS_TOOSHORT) 261 262#define set_bits(v, p) outw(inw(p)|(v), (p)) 263#define mask_bits(v, p) outw(inw(p)&(v), (p)) 264 265/*====================================================================*/ 266 267static void smc91c92_detach(struct pcmcia_device *p_dev); 268static int smc91c92_config(struct pcmcia_device *link); 269static void smc91c92_release(struct pcmcia_device *link); 270 271static int smc_open(struct net_device *dev); 272static int smc_close(struct net_device *dev); 273static int smc_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 274static void smc_tx_timeout(struct net_device *dev); 275static netdev_tx_t smc_start_xmit(struct sk_buff *skb, 276 struct net_device *dev); 277static irqreturn_t smc_interrupt(int irq, void *dev_id); 278static void smc_rx(struct net_device *dev); 279static void set_rx_mode(struct net_device *dev); 280static int s9k_config(struct net_device *dev, struct ifmap *map); 281static void smc_set_xcvr(struct net_device *dev, int if_port); 282static void smc_reset(struct net_device *dev); 283static void media_check(u_long arg); 284static void mdio_sync(unsigned int addr); 285static int mdio_read(struct net_device *dev, int phy_id, int loc); 286static void mdio_write(struct net_device *dev, int phy_id, int loc, int value); 287static int smc_link_ok(struct net_device *dev); 288static const struct ethtool_ops ethtool_ops; 289 290static const struct net_device_ops smc_netdev_ops = { 291 .ndo_open = smc_open, 292 .ndo_stop = smc_close, 293 .ndo_start_xmit = smc_start_xmit, 294 .ndo_tx_timeout = smc_tx_timeout, 295 .ndo_set_config = s9k_config, 296 .ndo_set_multicast_list = set_rx_mode, 297 .ndo_do_ioctl = &smc_ioctl, 298 .ndo_change_mtu = eth_change_mtu, 299 .ndo_set_mac_address = eth_mac_addr, 300 .ndo_validate_addr = eth_validate_addr, 301}; 302 303/*====================================================================== 304 305 smc91c92_attach() creates an "instance" of the driver, allocating 306 local data structures for one device. The device is registered 307 with Card Services. 308 309======================================================================*/ 310 311static int smc91c92_probe(struct pcmcia_device *link) 312{ 313 struct smc_private *smc; 314 struct net_device *dev; 315 316 dev_dbg(&link->dev, "smc91c92_attach()\n"); 317 318 /* Create new ethernet device */ 319 dev = alloc_etherdev(sizeof(struct smc_private)); 320 if (!dev) 321 return -ENOMEM; 322 smc = netdev_priv(dev); 323 smc->p_dev = link; 324 link->priv = dev; 325 326 spin_lock_init(&smc->lock); 327 link->resource[0]->end = 16; 328 link->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO; 329 link->conf.Attributes = CONF_ENABLE_IRQ; 330 link->conf.IntType = INT_MEMORY_AND_IO; 331 332 /* The SMC91c92-specific entries in the device structure. */ 333 dev->netdev_ops = &smc_netdev_ops; 334 SET_ETHTOOL_OPS(dev, ðtool_ops); 335 dev->watchdog_timeo = TX_TIMEOUT; 336 337 smc->mii_if.dev = dev; 338 smc->mii_if.mdio_read = mdio_read; 339 smc->mii_if.mdio_write = mdio_write; 340 smc->mii_if.phy_id_mask = 0x1f; 341 smc->mii_if.reg_num_mask = 0x1f; 342 343 return smc91c92_config(link); 344} /* smc91c92_attach */ 345 346/*====================================================================== 347 348 This deletes a driver "instance". The device is de-registered 349 with Card Services. If it has been released, all local data 350 structures are freed. Otherwise, the structures will be freed 351 when the device is released. 352 353======================================================================*/ 354 355static void smc91c92_detach(struct pcmcia_device *link) 356{ 357 struct net_device *dev = link->priv; 358 359 dev_dbg(&link->dev, "smc91c92_detach\n"); 360 361 unregister_netdev(dev); 362 363 smc91c92_release(link); 364 365 free_netdev(dev); 366} /* smc91c92_detach */ 367 368/*====================================================================*/ 369 370static int cvt_ascii_address(struct net_device *dev, char *s) 371{ 372 int i, j, da, c; 373 374 if (strlen(s) != 12) 375 return -1; 376 for (i = 0; i < 6; i++) { 377 da = 0; 378 for (j = 0; j < 2; j++) { 379 c = *s++; 380 da <<= 4; 381 da += ((c >= '0') && (c <= '9')) ? 382 (c - '0') : ((c & 0x0f) + 9); 383 } 384 dev->dev_addr[i] = da; 385 } 386 return 0; 387} 388 389/*==================================================================== 390 391 Configuration stuff for Megahertz cards 392 393 mhz_3288_power() is used to power up a 3288's ethernet chip. 394 mhz_mfc_config() handles socket setup for multifunction (1144 395 and 3288) cards. mhz_setup() gets a card's hardware ethernet 396 address. 397 398======================================================================*/ 399 400static int mhz_3288_power(struct pcmcia_device *link) 401{ 402 struct net_device *dev = link->priv; 403 struct smc_private *smc = netdev_priv(dev); 404 u_char tmp; 405 406 /* Read the ISR twice... */ 407 readb(smc->base+MEGAHERTZ_ISR); 408 udelay(5); 409 readb(smc->base+MEGAHERTZ_ISR); 410 411 /* Pause 200ms... */ 412 mdelay(200); 413 414 /* Now read and write the COR... */ 415 tmp = readb(smc->base + link->conf.ConfigBase + CISREG_COR); 416 udelay(5); 417 writeb(tmp, smc->base + link->conf.ConfigBase + CISREG_COR); 418 419 return 0; 420} 421 422static int mhz_mfc_config_check(struct pcmcia_device *p_dev, 423 cistpl_cftable_entry_t *cf, 424 cistpl_cftable_entry_t *dflt, 425 unsigned int vcc, 426 void *priv_data) 427{ 428 int k; 429 p_dev->resource[1]->start = cf->io.win[0].base; 430 for (k = 0; k < 0x400; k += 0x10) { 431 if (k & 0x80) 432 continue; 433 p_dev->resource[0]->start = k ^ 0x300; 434 p_dev->io_lines = 16; 435 if (!pcmcia_request_io(p_dev)) 436 return 0; 437 } 438 return -ENODEV; 439} 440 441static int mhz_mfc_config(struct pcmcia_device *link) 442{ 443 struct net_device *dev = link->priv; 444 struct smc_private *smc = netdev_priv(dev); 445 win_req_t req; 446 unsigned int offset; 447 int i; 448 449 link->conf.Attributes |= CONF_ENABLE_SPKR; 450 link->conf.Status = CCSR_AUDIO_ENA; 451 link->resource[1]->flags |= IO_DATA_PATH_WIDTH_8; 452 link->resource[1]->end = 8; 453 454 /* The Megahertz combo cards have modem-like CIS entries, so 455 we have to explicitly try a bunch of port combinations. */ 456 if (pcmcia_loop_config(link, mhz_mfc_config_check, NULL)) 457 return -ENODEV; 458 459 dev->base_addr = link->resource[0]->start; 460 461 /* Allocate a memory window, for accessing the ISR */ 462 req.Attributes = WIN_DATA_WIDTH_8|WIN_MEMORY_TYPE_AM|WIN_ENABLE; 463 req.Base = req.Size = 0; 464 req.AccessSpeed = 0; 465 i = pcmcia_request_window(link, &req, &link->win); 466 if (i != 0) 467 return -ENODEV; 468 469 smc->base = ioremap(req.Base, req.Size); 470 offset = (smc->manfid == MANFID_MOTOROLA) ? link->conf.ConfigBase : 0; 471 i = pcmcia_map_mem_page(link, link->win, offset); 472 if ((i == 0) && 473 (smc->manfid == MANFID_MEGAHERTZ) && 474 (smc->cardid == PRODID_MEGAHERTZ_EM3288)) 475 mhz_3288_power(link); 476 477 return 0; 478} 479 480static int pcmcia_get_versmac(struct pcmcia_device *p_dev, 481 tuple_t *tuple, 482 void *priv) 483{ 484 struct net_device *dev = priv; 485 cisparse_t parse; 486 u8 *buf; 487 488 if (pcmcia_parse_tuple(tuple, &parse)) 489 return -EINVAL; 490 491 buf = parse.version_1.str + parse.version_1.ofs[3]; 492 493 if ((parse.version_1.ns > 3) && (cvt_ascii_address(dev, buf) == 0)) 494 return 0; 495 496 return -EINVAL; 497}; 498 499static int mhz_setup(struct pcmcia_device *link) 500{ 501 struct net_device *dev = link->priv; 502 size_t len; 503 u8 *buf; 504 int rc; 505 506 /* Read the station address from the CIS. It is stored as the last 507 (fourth) string in the Version 1 Version/ID tuple. */ 508 if ((link->prod_id[3]) && 509 (cvt_ascii_address(dev, link->prod_id[3]) == 0)) 510 return 0; 511 512 /* Workarounds for broken cards start here. */ 513 /* Ugh -- the EM1144 card has two VERS_1 tuples!?! */ 514 if (!pcmcia_loop_tuple(link, CISTPL_VERS_1, pcmcia_get_versmac, dev)) 515 return 0; 516 517 /* Another possibility: for the EM3288, in a special tuple */ 518 rc = -1; 519 len = pcmcia_get_tuple(link, 0x81, &buf); 520 if (buf && len >= 13) { 521 buf[12] = '\0'; 522 if (cvt_ascii_address(dev, buf) == 0) 523 rc = 0; 524 } 525 kfree(buf); 526 527 return rc; 528}; 529 530/*====================================================================== 531 532 Configuration stuff for the Motorola Mariner 533 534 mot_config() writes directly to the Mariner configuration 535 registers because the CIS is just bogus. 536 537======================================================================*/ 538 539static void mot_config(struct pcmcia_device *link) 540{ 541 struct net_device *dev = link->priv; 542 struct smc_private *smc = netdev_priv(dev); 543 unsigned int ioaddr = dev->base_addr; 544 unsigned int iouart = link->resource[1]->start; 545 546 /* Set UART base address and force map with COR bit 1 */ 547 writeb(iouart & 0xff, smc->base + MOT_UART + CISREG_IOBASE_0); 548 writeb((iouart >> 8) & 0xff, smc->base + MOT_UART + CISREG_IOBASE_1); 549 writeb(MOT_NORMAL, smc->base + MOT_UART + CISREG_COR); 550 551 /* Set SMC base address and force map with COR bit 1 */ 552 writeb(ioaddr & 0xff, smc->base + MOT_LAN + CISREG_IOBASE_0); 553 writeb((ioaddr >> 8) & 0xff, smc->base + MOT_LAN + CISREG_IOBASE_1); 554 writeb(MOT_NORMAL, smc->base + MOT_LAN + CISREG_COR); 555 556 /* Wait for things to settle down */ 557 mdelay(100); 558} 559 560static int mot_setup(struct pcmcia_device *link) 561{ 562 struct net_device *dev = link->priv; 563 unsigned int ioaddr = dev->base_addr; 564 int i, wait, loop; 565 u_int addr; 566 567 /* Read Ethernet address from Serial EEPROM */ 568 569 for (i = 0; i < 3; i++) { 570 SMC_SELECT_BANK(2); 571 outw(MOT_EEPROM + i, ioaddr + POINTER); 572 SMC_SELECT_BANK(1); 573 outw((CTL_RELOAD | CTL_EE_SELECT), ioaddr + CONTROL); 574 575 for (loop = wait = 0; loop < 200; loop++) { 576 udelay(10); 577 wait = ((CTL_RELOAD | CTL_STORE) & inw(ioaddr + CONTROL)); 578 if (wait == 0) break; 579 } 580 581 if (wait) 582 return -1; 583 584 addr = inw(ioaddr + GENERAL); 585 dev->dev_addr[2*i] = addr & 0xff; 586 dev->dev_addr[2*i+1] = (addr >> 8) & 0xff; 587 } 588 589 return 0; 590} 591 592/*====================================================================*/ 593 594static int smc_configcheck(struct pcmcia_device *p_dev, 595 cistpl_cftable_entry_t *cf, 596 cistpl_cftable_entry_t *dflt, 597 unsigned int vcc, 598 void *priv_data) 599{ 600 p_dev->resource[0]->start = cf->io.win[0].base; 601 p_dev->io_lines = cf->io.flags & CISTPL_IO_LINES_MASK; 602 return pcmcia_request_io(p_dev); 603} 604 605static int smc_config(struct pcmcia_device *link) 606{ 607 struct net_device *dev = link->priv; 608 int i; 609 610 link->resource[0]->end = 16; 611 i = pcmcia_loop_config(link, smc_configcheck, NULL); 612 if (!i) 613 dev->base_addr = link->resource[0]->start; 614 615 return i; 616} 617 618 619static int smc_setup(struct pcmcia_device *link) 620{ 621 struct net_device *dev = link->priv; 622 623 /* Check for a LAN function extension tuple */ 624 if (!pcmcia_get_mac_from_cis(link, dev)) 625 return 0; 626 627 /* Try the third string in the Version 1 Version/ID tuple. */ 628 if (link->prod_id[2]) { 629 if (cvt_ascii_address(dev, link->prod_id[2]) == 0) 630 return 0; 631 } 632 return -1; 633} 634 635/*====================================================================*/ 636 637static int osi_config(struct pcmcia_device *link) 638{ 639 struct net_device *dev = link->priv; 640 static const unsigned int com[4] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8 }; 641 int i, j; 642 643 link->conf.Attributes |= CONF_ENABLE_SPKR; 644 link->conf.Status = CCSR_AUDIO_ENA; 645 link->resource[0]->end = 64; 646 link->resource[1]->flags |= IO_DATA_PATH_WIDTH_8; 647 link->resource[1]->end = 8; 648 649 /* Enable Hard Decode, LAN, Modem */ 650 link->conf.ConfigIndex = 0x23; 651 link->io_lines = 16; 652 653 for (i = j = 0; j < 4; j++) { 654 link->resource[1]->start = com[j]; 655 i = pcmcia_request_io(link); 656 if (i == 0) 657 break; 658 } 659 if (i != 0) { 660 /* Fallback: turn off hard decode */ 661 link->conf.ConfigIndex = 0x03; 662 link->resource[1]->end = 0; 663 i = pcmcia_request_io(link); 664 } 665 dev->base_addr = link->resource[0]->start + 0x10; 666 return i; 667} 668 669static int osi_load_firmware(struct pcmcia_device *link) 670{ 671 const struct firmware *fw; 672 int i, err; 673 674 err = request_firmware(&fw, FIRMWARE_NAME, &link->dev); 675 if (err) { 676 pr_err("Failed to load firmware \"%s\"\n", FIRMWARE_NAME); 677 return err; 678 } 679 680 /* Download the Seven of Diamonds firmware */ 681 for (i = 0; i < fw->size; i++) { 682 outb(fw->data[i], link->resource[0]->start + 2); 683 udelay(50); 684 } 685 release_firmware(fw); 686 return err; 687} 688 689static int pcmcia_osi_mac(struct pcmcia_device *p_dev, 690 tuple_t *tuple, 691 void *priv) 692{ 693 struct net_device *dev = priv; 694 int i; 695 696 if (tuple->TupleDataLen < 8) 697 return -EINVAL; 698 if (tuple->TupleData[0] != 0x04) 699 return -EINVAL; 700 for (i = 0; i < 6; i++) 701 dev->dev_addr[i] = tuple->TupleData[i+2]; 702 return 0; 703}; 704 705 706static int osi_setup(struct pcmcia_device *link, u_short manfid, u_short cardid) 707{ 708 struct net_device *dev = link->priv; 709 int rc; 710 711 /* Read the station address from tuple 0x90, subtuple 0x04 */ 712 if (pcmcia_loop_tuple(link, 0x90, pcmcia_osi_mac, dev)) 713 return -1; 714 715 if (((manfid == MANFID_OSITECH) && 716 (cardid == PRODID_OSITECH_SEVEN)) || 717 ((manfid == MANFID_PSION) && 718 (cardid == PRODID_PSION_NET100))) { 719 rc = osi_load_firmware(link); 720 if (rc) 721 return rc; 722 } else if (manfid == MANFID_OSITECH) { 723 /* Make sure both functions are powered up */ 724 set_bits(0x300, link->resource[0]->start + OSITECH_AUI_PWR); 725 /* Now, turn on the interrupt for both card functions */ 726 set_bits(0x300, link->resource[0]->start + OSITECH_RESET_ISR); 727 dev_dbg(&link->dev, "AUI/PWR: %4.4x RESET/ISR: %4.4x\n", 728 inw(link->resource[0]->start + OSITECH_AUI_PWR), 729 inw(link->resource[0]->start + OSITECH_RESET_ISR)); 730 } 731 return 0; 732} 733 734static int smc91c92_suspend(struct pcmcia_device *link) 735{ 736 struct net_device *dev = link->priv; 737 738 if (link->open) 739 netif_device_detach(dev); 740 741 return 0; 742} 743 744static int smc91c92_resume(struct pcmcia_device *link) 745{ 746 struct net_device *dev = link->priv; 747 struct smc_private *smc = netdev_priv(dev); 748 int i; 749 750 if ((smc->manfid == MANFID_MEGAHERTZ) && 751 (smc->cardid == PRODID_MEGAHERTZ_EM3288)) 752 mhz_3288_power(link); 753 if (smc->manfid == MANFID_MOTOROLA) 754 mot_config(link); 755 if ((smc->manfid == MANFID_OSITECH) && 756 (smc->cardid != PRODID_OSITECH_SEVEN)) { 757 /* Power up the card and enable interrupts */ 758 set_bits(0x0300, dev->base_addr-0x10+OSITECH_AUI_PWR); 759 set_bits(0x0300, dev->base_addr-0x10+OSITECH_RESET_ISR); 760 } 761 if (((smc->manfid == MANFID_OSITECH) && 762 (smc->cardid == PRODID_OSITECH_SEVEN)) || 763 ((smc->manfid == MANFID_PSION) && 764 (smc->cardid == PRODID_PSION_NET100))) { 765 i = osi_load_firmware(link); 766 if (i) { 767 pr_err("smc91c92_cs: Failed to load firmware\n"); 768 return i; 769 } 770 } 771 if (link->open) { 772 smc_reset(dev); 773 netif_device_attach(dev); 774 } 775 776 return 0; 777} 778 779 780/*====================================================================== 781 782 This verifies that the chip is some SMC91cXX variant, and returns 783 the revision code if successful. Otherwise, it returns -ENODEV. 784 785======================================================================*/ 786 787static int check_sig(struct pcmcia_device *link) 788{ 789 struct net_device *dev = link->priv; 790 unsigned int ioaddr = dev->base_addr; 791 int width; 792 u_short s; 793 794 SMC_SELECT_BANK(1); 795 if (inw(ioaddr + BANK_SELECT) >> 8 != 0x33) { 796 /* Try powering up the chip */ 797 outw(0, ioaddr + CONTROL); 798 mdelay(55); 799 } 800 801 /* Try setting bus width */ 802 width = (link->resource[0]->flags == IO_DATA_PATH_WIDTH_AUTO); 803 s = inb(ioaddr + CONFIG); 804 if (width) 805 s |= CFG_16BIT; 806 else 807 s &= ~CFG_16BIT; 808 outb(s, ioaddr + CONFIG); 809 810 /* Check Base Address Register to make sure bus width is OK */ 811 s = inw(ioaddr + BASE_ADDR); 812 if ((inw(ioaddr + BANK_SELECT) >> 8 == 0x33) && 813 ((s >> 8) != (s & 0xff))) { 814 SMC_SELECT_BANK(3); 815 s = inw(ioaddr + REVISION); 816 return (s & 0xff); 817 } 818 819 if (width) { 820 modconf_t mod = { 821 .Attributes = CONF_IO_CHANGE_WIDTH, 822 }; 823 printk(KERN_INFO "smc91c92_cs: using 8-bit IO window.\n"); 824 825 smc91c92_suspend(link); 826 pcmcia_modify_configuration(link, &mod); 827 smc91c92_resume(link); 828 return check_sig(link); 829 } 830 return -ENODEV; 831} 832 833/*====================================================================== 834 835 smc91c92_config() is scheduled to run after a CARD_INSERTION event 836 is received, to configure the PCMCIA socket, and to make the 837 ethernet device available to the system. 838 839======================================================================*/ 840 841static int smc91c92_config(struct pcmcia_device *link) 842{ 843 struct net_device *dev = link->priv; 844 struct smc_private *smc = netdev_priv(dev); 845 char *name; 846 int i, j, rev; 847 unsigned int ioaddr; 848 u_long mir; 849 850 dev_dbg(&link->dev, "smc91c92_config\n"); 851 852 smc->manfid = link->manf_id; 853 smc->cardid = link->card_id; 854 855 if ((smc->manfid == MANFID_OSITECH) && 856 (smc->cardid != PRODID_OSITECH_SEVEN)) { 857 i = osi_config(link); 858 } else if ((smc->manfid == MANFID_MOTOROLA) || 859 ((smc->manfid == MANFID_MEGAHERTZ) && 860 ((smc->cardid == PRODID_MEGAHERTZ_VARIOUS) || 861 (smc->cardid == PRODID_MEGAHERTZ_EM3288)))) { 862 i = mhz_mfc_config(link); 863 } else { 864 i = smc_config(link); 865 } 866 if (i) 867 goto config_failed; 868 869 i = pcmcia_request_irq(link, smc_interrupt); 870 if (i) 871 goto config_failed; 872 i = pcmcia_request_configuration(link, &link->conf); 873 if (i) 874 goto config_failed; 875 876 if (smc->manfid == MANFID_MOTOROLA) 877 mot_config(link); 878 879 dev->irq = link->irq; 880 881 if ((if_port >= 0) && (if_port <= 2)) 882 dev->if_port = if_port; 883 else 884 printk(KERN_NOTICE "smc91c92_cs: invalid if_port requested\n"); 885 886 switch (smc->manfid) { 887 case MANFID_OSITECH: 888 case MANFID_PSION: 889 i = osi_setup(link, smc->manfid, smc->cardid); break; 890 case MANFID_SMC: 891 case MANFID_NEW_MEDIA: 892 i = smc_setup(link); break; 893 case 0x128: /* For broken Megahertz cards */ 894 case MANFID_MEGAHERTZ: 895 i = mhz_setup(link); break; 896 case MANFID_MOTOROLA: 897 default: /* get the hw address from EEPROM */ 898 i = mot_setup(link); break; 899 } 900 901 if (i != 0) { 902 printk(KERN_NOTICE "smc91c92_cs: Unable to find hardware address.\n"); 903 goto config_failed; 904 } 905 906 smc->duplex = 0; 907 smc->rx_ovrn = 0; 908 909 rev = check_sig(link); 910 name = "???"; 911 if (rev > 0) 912 switch (rev >> 4) { 913 case 3: name = "92"; break; 914 case 4: name = ((rev & 15) >= 6) ? "96" : "94"; break; 915 case 5: name = "95"; break; 916 case 7: name = "100"; break; 917 case 8: name = "100-FD"; break; 918 case 9: name = "110"; break; 919 } 920 921 ioaddr = dev->base_addr; 922 if (rev > 0) { 923 u_long mcr; 924 SMC_SELECT_BANK(0); 925 mir = inw(ioaddr + MEMINFO) & 0xff; 926 if (mir == 0xff) mir++; 927 /* Get scale factor for memory size */ 928 mcr = ((rev >> 4) > 3) ? inw(ioaddr + MEMCFG) : 0x0200; 929 mir *= 128 * (1<<((mcr >> 9) & 7)); 930 SMC_SELECT_BANK(1); 931 smc->cfg = inw(ioaddr + CONFIG) & ~CFG_AUI_SELECT; 932 smc->cfg |= CFG_NO_WAIT | CFG_16BIT | CFG_STATIC; 933 if (smc->manfid == MANFID_OSITECH) 934 smc->cfg |= CFG_IRQ_SEL_1 | CFG_IRQ_SEL_0; 935 if ((rev >> 4) >= 7) 936 smc->cfg |= CFG_MII_SELECT; 937 } else 938 mir = 0; 939 940 if (smc->cfg & CFG_MII_SELECT) { 941 SMC_SELECT_BANK(3); 942 943 for (i = 0; i < 32; i++) { 944 j = mdio_read(dev, i, 1); 945 if ((j != 0) && (j != 0xffff)) break; 946 } 947 smc->mii_if.phy_id = (i < 32) ? i : -1; 948 949 SMC_SELECT_BANK(0); 950 } 951 952 SET_NETDEV_DEV(dev, &link->dev); 953 954 if (register_netdev(dev) != 0) { 955 printk(KERN_ERR "smc91c92_cs: register_netdev() failed\n"); 956 goto config_undo; 957 } 958 959 printk(KERN_INFO "%s: smc91c%s rev %d: io %#3lx, irq %d, " 960 "hw_addr %pM\n", 961 dev->name, name, (rev & 0x0f), dev->base_addr, dev->irq, 962 dev->dev_addr); 963 964 if (rev > 0) { 965 if (mir & 0x3ff) 966 printk(KERN_INFO " %lu byte", mir); 967 else 968 printk(KERN_INFO " %lu kb", mir>>10); 969 printk(" buffer, %s xcvr\n", (smc->cfg & CFG_MII_SELECT) ? 970 "MII" : if_names[dev->if_port]); 971 } 972 973 if (smc->cfg & CFG_MII_SELECT) { 974 if (smc->mii_if.phy_id != -1) { 975 dev_dbg(&link->dev, " MII transceiver at index %d, status %x.\n", 976 smc->mii_if.phy_id, j); 977 } else { 978 printk(KERN_NOTICE " No MII transceivers found!\n"); 979 } 980 } 981 return 0; 982 983config_undo: 984 unregister_netdev(dev); 985config_failed: 986 smc91c92_release(link); 987 free_netdev(dev); 988 return -ENODEV; 989} /* smc91c92_config */ 990 991/*====================================================================== 992 993 After a card is removed, smc91c92_release() will unregister the net 994 device, and release the PCMCIA configuration. If the device is 995 still open, this will be postponed until it is closed. 996 997======================================================================*/ 998 999static void smc91c92_release(struct pcmcia_device *link) 1000{ 1001 dev_dbg(&link->dev, "smc91c92_release\n"); 1002 if (link->win) { 1003 struct net_device *dev = link->priv; 1004 struct smc_private *smc = netdev_priv(dev); 1005 iounmap(smc->base); 1006 } 1007 pcmcia_disable_device(link); 1008} 1009 1010/*====================================================================== 1011 1012 MII interface support for SMC91cXX based cards 1013======================================================================*/ 1014 1015#define MDIO_SHIFT_CLK 0x04 1016#define MDIO_DATA_OUT 0x01 1017#define MDIO_DIR_WRITE 0x08 1018#define MDIO_DATA_WRITE0 (MDIO_DIR_WRITE) 1019#define MDIO_DATA_WRITE1 (MDIO_DIR_WRITE | MDIO_DATA_OUT) 1020#define MDIO_DATA_READ 0x02 1021 1022static void mdio_sync(unsigned int addr) 1023{ 1024 int bits; 1025 for (bits = 0; bits < 32; bits++) { 1026 outb(MDIO_DATA_WRITE1, addr); 1027 outb(MDIO_DATA_WRITE1 | MDIO_SHIFT_CLK, addr); 1028 } 1029} 1030 1031static int mdio_read(struct net_device *dev, int phy_id, int loc) 1032{ 1033 unsigned int addr = dev->base_addr + MGMT; 1034 u_int cmd = (0x06<<10)|(phy_id<<5)|loc; 1035 int i, retval = 0; 1036 1037 mdio_sync(addr); 1038 for (i = 13; i >= 0; i--) { 1039 int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0; 1040 outb(dat, addr); 1041 outb(dat | MDIO_SHIFT_CLK, addr); 1042 } 1043 for (i = 19; i > 0; i--) { 1044 outb(0, addr); 1045 retval = (retval << 1) | ((inb(addr) & MDIO_DATA_READ) != 0); 1046 outb(MDIO_SHIFT_CLK, addr); 1047 } 1048 return (retval>>1) & 0xffff; 1049} 1050 1051static void mdio_write(struct net_device *dev, int phy_id, int loc, int value) 1052{ 1053 unsigned int addr = dev->base_addr + MGMT; 1054 u_int cmd = (0x05<<28)|(phy_id<<23)|(loc<<18)|(1<<17)|value; 1055 int i; 1056 1057 mdio_sync(addr); 1058 for (i = 31; i >= 0; i--) { 1059 int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0; 1060 outb(dat, addr); 1061 outb(dat | MDIO_SHIFT_CLK, addr); 1062 } 1063 for (i = 1; i >= 0; i--) { 1064 outb(0, addr); 1065 outb(MDIO_SHIFT_CLK, addr); 1066 } 1067} 1068 1069/*====================================================================== 1070 1071 The driver core code, most of which should be common with a 1072 non-PCMCIA implementation. 1073 1074======================================================================*/ 1075 1076#ifdef PCMCIA_DEBUG 1077static void smc_dump(struct net_device *dev) 1078{ 1079 unsigned int ioaddr = dev->base_addr; 1080 u_short i, w, save; 1081 save = inw(ioaddr + BANK_SELECT); 1082 for (w = 0; w < 4; w++) { 1083 SMC_SELECT_BANK(w); 1084 printk(KERN_DEBUG "bank %d: ", w); 1085 for (i = 0; i < 14; i += 2) 1086 printk(" %04x", inw(ioaddr + i)); 1087 printk("\n"); 1088 } 1089 outw(save, ioaddr + BANK_SELECT); 1090} 1091#endif 1092 1093static int smc_open(struct net_device *dev) 1094{ 1095 struct smc_private *smc = netdev_priv(dev); 1096 struct pcmcia_device *link = smc->p_dev; 1097 1098 dev_dbg(&link->dev, "%s: smc_open(%p), ID/Window %4.4x.\n", 1099 dev->name, dev, inw(dev->base_addr + BANK_SELECT)); 1100#ifdef PCMCIA_DEBUG 1101 smc_dump(dev); 1102#endif 1103 1104 /* Check that the PCMCIA card is still here. */ 1105 if (!pcmcia_dev_present(link)) 1106 return -ENODEV; 1107 /* Physical device present signature. */ 1108 if (check_sig(link) < 0) { 1109 printk("smc91c92_cs: Yikes! Bad chip signature!\n"); 1110 return -ENODEV; 1111 } 1112 link->open++; 1113 1114 netif_start_queue(dev); 1115 smc->saved_skb = NULL; 1116 smc->packets_waiting = 0; 1117 1118 smc_reset(dev); 1119 init_timer(&smc->media); 1120 smc->media.function = &media_check; 1121 smc->media.data = (u_long) dev; 1122 smc->media.expires = jiffies + HZ; 1123 add_timer(&smc->media); 1124 1125 return 0; 1126} /* smc_open */ 1127 1128/*====================================================================*/ 1129 1130static int smc_close(struct net_device *dev) 1131{ 1132 struct smc_private *smc = netdev_priv(dev); 1133 struct pcmcia_device *link = smc->p_dev; 1134 unsigned int ioaddr = dev->base_addr; 1135 1136 dev_dbg(&link->dev, "%s: smc_close(), status %4.4x.\n", 1137 dev->name, inw(ioaddr + BANK_SELECT)); 1138 1139 netif_stop_queue(dev); 1140 1141 /* Shut off all interrupts, and turn off the Tx and Rx sections. 1142 Don't bother to check for chip present. */ 1143 SMC_SELECT_BANK(2); /* Nominally paranoia, but do no assume... */ 1144 outw(0, ioaddr + INTERRUPT); 1145 SMC_SELECT_BANK(0); 1146 mask_bits(0xff00, ioaddr + RCR); 1147 mask_bits(0xff00, ioaddr + TCR); 1148 1149 /* Put the chip into power-down mode. */ 1150 SMC_SELECT_BANK(1); 1151 outw(CTL_POWERDOWN, ioaddr + CONTROL ); 1152 1153 link->open--; 1154 del_timer_sync(&smc->media); 1155 1156 return 0; 1157} /* smc_close */ 1158 1159/*====================================================================== 1160 1161 Transfer a packet to the hardware and trigger the packet send. 1162 This may be called at either from either the Tx queue code 1163 or the interrupt handler. 1164 1165======================================================================*/ 1166 1167static void smc_hardware_send_packet(struct net_device * dev) 1168{ 1169 struct smc_private *smc = netdev_priv(dev); 1170 struct sk_buff *skb = smc->saved_skb; 1171 unsigned int ioaddr = dev->base_addr; 1172 u_char packet_no; 1173 1174 if (!skb) { 1175 printk(KERN_ERR "%s: In XMIT with no packet to send.\n", dev->name); 1176 return; 1177 } 1178 1179 /* There should be a packet slot waiting. */ 1180 packet_no = inw(ioaddr + PNR_ARR) >> 8; 1181 if (packet_no & 0x80) { 1182 /* If not, there is a hardware problem! Likely an ejected card. */ 1183 printk(KERN_WARNING "%s: 91c92 hardware Tx buffer allocation" 1184 " failed, status %#2.2x.\n", dev->name, packet_no); 1185 dev_kfree_skb_irq(skb); 1186 smc->saved_skb = NULL; 1187 netif_start_queue(dev); 1188 return; 1189 } 1190 1191 dev->stats.tx_bytes += skb->len; 1192 /* The card should use the just-allocated buffer. */ 1193 outw(packet_no, ioaddr + PNR_ARR); 1194 /* point to the beginning of the packet */ 1195 outw(PTR_AUTOINC , ioaddr + POINTER); 1196 1197 /* Send the packet length (+6 for status, length and ctl byte) 1198 and the status word (set to zeros). */ 1199 { 1200 u_char *buf = skb->data; 1201 u_int length = skb->len; /* The chip will pad to ethernet min. */ 1202 1203 pr_debug("%s: Trying to xmit packet of length %d.\n", 1204 dev->name, length); 1205 1206 /* send the packet length: +6 for status word, length, and ctl */ 1207 outw(0, ioaddr + DATA_1); 1208 outw(length + 6, ioaddr + DATA_1); 1209 outsw(ioaddr + DATA_1, buf, length >> 1); 1210 1211 /* The odd last byte, if there is one, goes in the control word. */ 1212 outw((length & 1) ? 0x2000 | buf[length-1] : 0, ioaddr + DATA_1); 1213 } 1214 1215 /* Enable the Tx interrupts, both Tx (TxErr) and TxEmpty. */ 1216 outw(((IM_TX_INT|IM_TX_EMPTY_INT)<<8) | 1217 (inw(ioaddr + INTERRUPT) & 0xff00), 1218 ioaddr + INTERRUPT); 1219 1220 /* The chip does the rest of the work. */ 1221 outw(MC_ENQUEUE , ioaddr + MMU_CMD); 1222 1223 smc->saved_skb = NULL; 1224 dev_kfree_skb_irq(skb); 1225 dev->trans_start = jiffies; 1226 netif_start_queue(dev); 1227} 1228 1229/*====================================================================*/ 1230 1231static void smc_tx_timeout(struct net_device *dev) 1232{ 1233 struct smc_private *smc = netdev_priv(dev); 1234 unsigned int ioaddr = dev->base_addr; 1235 1236 printk(KERN_NOTICE "%s: SMC91c92 transmit timed out, " 1237 "Tx_status %2.2x status %4.4x.\n", 1238 dev->name, inw(ioaddr)&0xff, inw(ioaddr + 2)); 1239 dev->stats.tx_errors++; 1240 smc_reset(dev); 1241 dev->trans_start = jiffies; /* prevent tx timeout */ 1242 smc->saved_skb = NULL; 1243 netif_wake_queue(dev); 1244} 1245 1246static netdev_tx_t smc_start_xmit(struct sk_buff *skb, 1247 struct net_device *dev) 1248{ 1249 struct smc_private *smc = netdev_priv(dev); 1250 unsigned int ioaddr = dev->base_addr; 1251 u_short num_pages; 1252 short time_out, ir; 1253 unsigned long flags; 1254 1255 netif_stop_queue(dev); 1256 1257 pr_debug("%s: smc_start_xmit(length = %d) called," 1258 " status %4.4x.\n", dev->name, skb->len, inw(ioaddr + 2)); 1259 1260 if (smc->saved_skb) { 1261 /* THIS SHOULD NEVER HAPPEN. */ 1262 dev->stats.tx_aborted_errors++; 1263 printk(KERN_DEBUG "%s: Internal error -- sent packet while busy.\n", 1264 dev->name); 1265 return NETDEV_TX_BUSY; 1266 } 1267 smc->saved_skb = skb; 1268 1269 num_pages = skb->len >> 8; 1270 1271 if (num_pages > 7) { 1272 printk(KERN_ERR "%s: Far too big packet error.\n", dev->name); 1273 dev_kfree_skb (skb); 1274 smc->saved_skb = NULL; 1275 dev->stats.tx_dropped++; 1276 return NETDEV_TX_OK; /* Do not re-queue this packet. */ 1277 } 1278 /* A packet is now waiting. */ 1279 smc->packets_waiting++; 1280 1281 spin_lock_irqsave(&smc->lock, flags); 1282 SMC_SELECT_BANK(2); /* Paranoia, we should always be in window 2 */ 1283 1284 /* need MC_RESET to keep the memory consistent. errata? */ 1285 if (smc->rx_ovrn) { 1286 outw(MC_RESET, ioaddr + MMU_CMD); 1287 smc->rx_ovrn = 0; 1288 } 1289 1290 /* Allocate the memory; send the packet now if we win. */ 1291 outw(MC_ALLOC | num_pages, ioaddr + MMU_CMD); 1292 for (time_out = MEMORY_WAIT_TIME; time_out >= 0; time_out--) { 1293 ir = inw(ioaddr+INTERRUPT); 1294 if (ir & IM_ALLOC_INT) { 1295 /* Acknowledge the interrupt, send the packet. */ 1296 outw((ir&0xff00) | IM_ALLOC_INT, ioaddr + INTERRUPT); 1297 smc_hardware_send_packet(dev); /* Send the packet now.. */ 1298 spin_unlock_irqrestore(&smc->lock, flags); 1299 return NETDEV_TX_OK; 1300 } 1301 } 1302 1303 /* Otherwise defer until the Tx-space-allocated interrupt. */ 1304 pr_debug("%s: memory allocation deferred.\n", dev->name); 1305 outw((IM_ALLOC_INT << 8) | (ir & 0xff00), ioaddr + INTERRUPT); 1306 spin_unlock_irqrestore(&smc->lock, flags); 1307 1308 return NETDEV_TX_OK; 1309} 1310 1311/*====================================================================== 1312 1313 Handle a Tx anomolous event. Entered while in Window 2. 1314 1315======================================================================*/ 1316 1317static void smc_tx_err(struct net_device * dev) 1318{ 1319 struct smc_private *smc = netdev_priv(dev); 1320 unsigned int ioaddr = dev->base_addr; 1321 int saved_packet = inw(ioaddr + PNR_ARR) & 0xff; 1322 int packet_no = inw(ioaddr + FIFO_PORTS) & 0x7f; 1323 int tx_status; 1324 1325 /* select this as the packet to read from */ 1326 outw(packet_no, ioaddr + PNR_ARR); 1327 1328 /* read the first word from this packet */ 1329 outw(PTR_AUTOINC | PTR_READ | 0, ioaddr + POINTER); 1330 1331 tx_status = inw(ioaddr + DATA_1); 1332 1333 dev->stats.tx_errors++; 1334 if (tx_status & TS_LOSTCAR) dev->stats.tx_carrier_errors++; 1335 if (tx_status & TS_LATCOL) dev->stats.tx_window_errors++; 1336 if (tx_status & TS_16COL) { 1337 dev->stats.tx_aborted_errors++; 1338 smc->tx_err++; 1339 } 1340 1341 if (tx_status & TS_SUCCESS) { 1342 printk(KERN_NOTICE "%s: Successful packet caused error " 1343 "interrupt?\n", dev->name); 1344 } 1345 /* re-enable transmit */ 1346 SMC_SELECT_BANK(0); 1347 outw(inw(ioaddr + TCR) | TCR_ENABLE | smc->duplex, ioaddr + TCR); 1348 SMC_SELECT_BANK(2); 1349 1350 outw(MC_FREEPKT, ioaddr + MMU_CMD); /* Free the packet memory. */ 1351 1352 /* one less packet waiting for me */ 1353 smc->packets_waiting--; 1354 1355 outw(saved_packet, ioaddr + PNR_ARR); 1356} 1357 1358/*====================================================================*/ 1359 1360static void smc_eph_irq(struct net_device *dev) 1361{ 1362 struct smc_private *smc = netdev_priv(dev); 1363 unsigned int ioaddr = dev->base_addr; 1364 u_short card_stats, ephs; 1365 1366 SMC_SELECT_BANK(0); 1367 ephs = inw(ioaddr + EPH); 1368 pr_debug("%s: Ethernet protocol handler interrupt, status" 1369 " %4.4x.\n", dev->name, ephs); 1370 /* Could be a counter roll-over warning: update stats. */ 1371 card_stats = inw(ioaddr + COUNTER); 1372 /* single collisions */ 1373 dev->stats.collisions += card_stats & 0xF; 1374 card_stats >>= 4; 1375 /* multiple collisions */ 1376 dev->stats.collisions += card_stats & 0xF; 1377 /* If we had a transmit error we must re-enable the transmitter. */ 1378 outw(inw(ioaddr + TCR) | TCR_ENABLE | smc->duplex, ioaddr + TCR); 1379 1380 /* Clear a link error interrupt. */ 1381 SMC_SELECT_BANK(1); 1382 outw(CTL_AUTO_RELEASE | 0x0000, ioaddr + CONTROL); 1383 outw(CTL_AUTO_RELEASE | CTL_TE_ENABLE | CTL_CR_ENABLE, 1384 ioaddr + CONTROL); 1385 SMC_SELECT_BANK(2); 1386} 1387 1388/*====================================================================*/ 1389 1390static irqreturn_t smc_interrupt(int irq, void *dev_id) 1391{ 1392 struct net_device *dev = dev_id; 1393 struct smc_private *smc = netdev_priv(dev); 1394 unsigned int ioaddr; 1395 u_short saved_bank, saved_pointer, mask, status; 1396 unsigned int handled = 1; 1397 char bogus_cnt = INTR_WORK; /* Work we are willing to do. */ 1398 1399 if (!netif_device_present(dev)) 1400 return IRQ_NONE; 1401 1402 ioaddr = dev->base_addr; 1403 1404 pr_debug("%s: SMC91c92 interrupt %d at %#x.\n", dev->name, 1405 irq, ioaddr); 1406 1407 spin_lock(&smc->lock); 1408 smc->watchdog = 0; 1409 saved_bank = inw(ioaddr + BANK_SELECT); 1410 if ((saved_bank & 0xff00) != 0x3300) { 1411 /* The device does not exist -- the card could be off-line, or 1412 maybe it has been ejected. */ 1413 pr_debug("%s: SMC91c92 interrupt %d for non-existent" 1414 "/ejected device.\n", dev->name, irq); 1415 handled = 0; 1416 goto irq_done; 1417 } 1418 1419 SMC_SELECT_BANK(2); 1420 saved_pointer = inw(ioaddr + POINTER); 1421 mask = inw(ioaddr + INTERRUPT) >> 8; 1422 /* clear all interrupts */ 1423 outw(0, ioaddr + INTERRUPT); 1424 1425 do { /* read the status flag, and mask it */ 1426 status = inw(ioaddr + INTERRUPT) & 0xff; 1427 pr_debug("%s: Status is %#2.2x (mask %#2.2x).\n", dev->name, 1428 status, mask); 1429 if ((status & mask) == 0) { 1430 if (bogus_cnt == INTR_WORK) 1431 handled = 0; 1432 break; 1433 } 1434 if (status & IM_RCV_INT) { 1435 /* Got a packet(s). */ 1436 smc_rx(dev); 1437 } 1438 if (status & IM_TX_INT) { 1439 smc_tx_err(dev); 1440 outw(IM_TX_INT, ioaddr + INTERRUPT); 1441 } 1442 status &= mask; 1443 if (status & IM_TX_EMPTY_INT) { 1444 outw(IM_TX_EMPTY_INT, ioaddr + INTERRUPT); 1445 mask &= ~IM_TX_EMPTY_INT; 1446 dev->stats.tx_packets += smc->packets_waiting; 1447 smc->packets_waiting = 0; 1448 } 1449 if (status & IM_ALLOC_INT) { 1450 /* Clear this interrupt so it doesn't happen again */ 1451 mask &= ~IM_ALLOC_INT; 1452 1453 smc_hardware_send_packet(dev); 1454 1455 /* enable xmit interrupts based on this */ 1456 mask |= (IM_TX_EMPTY_INT | IM_TX_INT); 1457 1458 /* and let the card send more packets to me */ 1459 netif_wake_queue(dev); 1460 } 1461 if (status & IM_RX_OVRN_INT) { 1462 dev->stats.rx_errors++; 1463 dev->stats.rx_fifo_errors++; 1464 if (smc->duplex) 1465 smc->rx_ovrn = 1; /* need MC_RESET outside smc_interrupt */ 1466 outw(IM_RX_OVRN_INT, ioaddr + INTERRUPT); 1467 } 1468 if (status & IM_EPH_INT) 1469 smc_eph_irq(dev); 1470 } while (--bogus_cnt); 1471 1472 pr_debug(" Restoring saved registers mask %2.2x bank %4.4x" 1473 " pointer %4.4x.\n", mask, saved_bank, saved_pointer); 1474 1475 /* restore state register */ 1476 outw((mask<<8), ioaddr + INTERRUPT); 1477 outw(saved_pointer, ioaddr + POINTER); 1478 SMC_SELECT_BANK(saved_bank); 1479 1480 pr_debug("%s: Exiting interrupt IRQ%d.\n", dev->name, irq); 1481 1482irq_done: 1483 1484 if ((smc->manfid == MANFID_OSITECH) && 1485 (smc->cardid != PRODID_OSITECH_SEVEN)) { 1486 /* Retrigger interrupt if needed */ 1487 mask_bits(0x00ff, ioaddr-0x10+OSITECH_RESET_ISR); 1488 set_bits(0x0300, ioaddr-0x10+OSITECH_RESET_ISR); 1489 } 1490 if (smc->manfid == MANFID_MOTOROLA) { 1491 u_char cor; 1492 cor = readb(smc->base + MOT_UART + CISREG_COR); 1493 writeb(cor & ~COR_IREQ_ENA, smc->base + MOT_UART + CISREG_COR); 1494 writeb(cor, smc->base + MOT_UART + CISREG_COR); 1495 cor = readb(smc->base + MOT_LAN + CISREG_COR); 1496 writeb(cor & ~COR_IREQ_ENA, smc->base + MOT_LAN + CISREG_COR); 1497 writeb(cor, smc->base + MOT_LAN + CISREG_COR); 1498 } 1499 1500 if ((smc->base != NULL) && /* Megahertz MFC's */ 1501 (smc->manfid == MANFID_MEGAHERTZ) && 1502 (smc->cardid == PRODID_MEGAHERTZ_EM3288)) { 1503 1504 u_char tmp; 1505 tmp = readb(smc->base+MEGAHERTZ_ISR); 1506 tmp = readb(smc->base+MEGAHERTZ_ISR); 1507 1508 /* Retrigger interrupt if needed */ 1509 writeb(tmp, smc->base + MEGAHERTZ_ISR); 1510 writeb(tmp, smc->base + MEGAHERTZ_ISR); 1511 } 1512 1513 spin_unlock(&smc->lock); 1514 return IRQ_RETVAL(handled); 1515} 1516 1517/*====================================================================*/ 1518 1519static void smc_rx(struct net_device *dev) 1520{ 1521 unsigned int ioaddr = dev->base_addr; 1522 int rx_status; 1523 int packet_length; /* Caution: not frame length, rather words 1524 to transfer from the chip. */ 1525 1526 /* Assertion: we are in Window 2. */ 1527 1528 if (inw(ioaddr + FIFO_PORTS) & FP_RXEMPTY) { 1529 printk(KERN_ERR "%s: smc_rx() with nothing on Rx FIFO.\n", 1530 dev->name); 1531 return; 1532 } 1533 1534 /* Reset the read pointer, and read the status and packet length. */ 1535 outw(PTR_READ | PTR_RCV | PTR_AUTOINC, ioaddr + POINTER); 1536 rx_status = inw(ioaddr + DATA_1); 1537 packet_length = inw(ioaddr + DATA_1) & 0x07ff; 1538 1539 pr_debug("%s: Receive status %4.4x length %d.\n", 1540 dev->name, rx_status, packet_length); 1541 1542 if (!(rx_status & RS_ERRORS)) { 1543 /* do stuff to make a new packet */ 1544 struct sk_buff *skb; 1545 1546 /* Note: packet_length adds 5 or 6 extra bytes here! */ 1547 skb = dev_alloc_skb(packet_length+2); 1548 1549 if (skb == NULL) { 1550 pr_debug("%s: Low memory, packet dropped.\n", dev->name); 1551 dev->stats.rx_dropped++; 1552 outw(MC_RELEASE, ioaddr + MMU_CMD); 1553 return; 1554 } 1555 1556 packet_length -= (rx_status & RS_ODDFRAME ? 5 : 6); 1557 skb_reserve(skb, 2); 1558 insw(ioaddr+DATA_1, skb_put(skb, packet_length), 1559 (packet_length+1)>>1); 1560 skb->protocol = eth_type_trans(skb, dev); 1561 1562 netif_rx(skb); 1563 dev->last_rx = jiffies; 1564 dev->stats.rx_packets++; 1565 dev->stats.rx_bytes += packet_length; 1566 if (rx_status & RS_MULTICAST) 1567 dev->stats.multicast++; 1568 } else { 1569 /* error ... */ 1570 dev->stats.rx_errors++; 1571 1572 if (rx_status & RS_ALGNERR) dev->stats.rx_frame_errors++; 1573 if (rx_status & (RS_TOOSHORT | RS_TOOLONG)) 1574 dev->stats.rx_length_errors++; 1575 if (rx_status & RS_BADCRC) dev->stats.rx_crc_errors++; 1576 } 1577 /* Let the MMU free the memory of this packet. */ 1578 outw(MC_RELEASE, ioaddr + MMU_CMD); 1579} 1580 1581/*====================================================================== 1582 1583 Set the receive mode. 1584 1585 This routine is used by both the protocol level to notify us of 1586 promiscuous/multicast mode changes, and by the open/reset code to 1587 initialize the Rx registers. We always set the multicast list and 1588 leave the receiver running. 1589 1590======================================================================*/ 1591 1592static void set_rx_mode(struct net_device *dev) 1593{ 1594 unsigned int ioaddr = dev->base_addr; 1595 struct smc_private *smc = netdev_priv(dev); 1596 unsigned char multicast_table[8]; 1597 unsigned long flags; 1598 u_short rx_cfg_setting; 1599 int i; 1600 1601 memset(multicast_table, 0, sizeof(multicast_table)); 1602 1603 if (dev->flags & IFF_PROMISC) { 1604 rx_cfg_setting = RxStripCRC | RxEnable | RxPromisc | RxAllMulti; 1605 } else if (dev->flags & IFF_ALLMULTI) 1606 rx_cfg_setting = RxStripCRC | RxEnable | RxAllMulti; 1607 else { 1608 if (!netdev_mc_empty(dev)) { 1609 struct netdev_hw_addr *ha; 1610 1611 netdev_for_each_mc_addr(ha, dev) { 1612 u_int position = ether_crc(6, ha->addr); 1613 multicast_table[position >> 29] |= 1 << ((position >> 26) & 7); 1614 } 1615 } 1616 rx_cfg_setting = RxStripCRC | RxEnable; 1617 } 1618 1619 /* Load MC table and Rx setting into the chip without interrupts. */ 1620 spin_lock_irqsave(&smc->lock, flags); 1621 SMC_SELECT_BANK(3); 1622 for (i = 0; i < 8; i++) 1623 outb(multicast_table[i], ioaddr + MULTICAST0 + i); 1624 SMC_SELECT_BANK(0); 1625 outw(rx_cfg_setting, ioaddr + RCR); 1626 SMC_SELECT_BANK(2); 1627 spin_unlock_irqrestore(&smc->lock, flags); 1628} 1629 1630/*====================================================================== 1631 1632 Senses when a card's config changes. Here, it's coax or TP. 1633 1634======================================================================*/ 1635 1636static int s9k_config(struct net_device *dev, struct ifmap *map) 1637{ 1638 struct smc_private *smc = netdev_priv(dev); 1639 if ((map->port != (u_char)(-1)) && (map->port != dev->if_port)) { 1640 if (smc->cfg & CFG_MII_SELECT) 1641 return -EOPNOTSUPP; 1642 else if (map->port > 2) 1643 return -EINVAL; 1644 dev->if_port = map->port; 1645 printk(KERN_INFO "%s: switched to %s port\n", 1646 dev->name, if_names[dev->if_port]); 1647 smc_reset(dev); 1648 } 1649 return 0; 1650} 1651 1652/*====================================================================== 1653 1654 Reset the chip, reloading every register that might be corrupted. 1655 1656======================================================================*/ 1657 1658/* 1659 Set transceiver type, perhaps to something other than what the user 1660 specified in dev->if_port. 1661*/ 1662static void smc_set_xcvr(struct net_device *dev, int if_port) 1663{ 1664 struct smc_private *smc = netdev_priv(dev); 1665 unsigned int ioaddr = dev->base_addr; 1666 u_short saved_bank; 1667 1668 saved_bank = inw(ioaddr + BANK_SELECT); 1669 SMC_SELECT_BANK(1); 1670 if (if_port == 2) { 1671 outw(smc->cfg | CFG_AUI_SELECT, ioaddr + CONFIG); 1672 if ((smc->manfid == MANFID_OSITECH) && 1673 (smc->cardid != PRODID_OSITECH_SEVEN)) 1674 set_bits(OSI_AUI_PWR, ioaddr - 0x10 + OSITECH_AUI_PWR); 1675 smc->media_status = ((dev->if_port == 0) ? 0x0001 : 0x0002); 1676 } else { 1677 outw(smc->cfg, ioaddr + CONFIG); 1678 if ((smc->manfid == MANFID_OSITECH) && 1679 (smc->cardid != PRODID_OSITECH_SEVEN)) 1680 mask_bits(~OSI_AUI_PWR, ioaddr - 0x10 + OSITECH_AUI_PWR); 1681 smc->media_status = ((dev->if_port == 0) ? 0x0012 : 0x4001); 1682 } 1683 SMC_SELECT_BANK(saved_bank); 1684} 1685 1686static void smc_reset(struct net_device *dev) 1687{ 1688 unsigned int ioaddr = dev->base_addr; 1689 struct smc_private *smc = netdev_priv(dev); 1690 int i; 1691 1692 pr_debug("%s: smc91c92 reset called.\n", dev->name); 1693 1694 /* The first interaction must be a write to bring the chip out 1695 of sleep mode. */ 1696 SMC_SELECT_BANK(0); 1697 /* Reset the chip. */ 1698 outw(RCR_SOFTRESET, ioaddr + RCR); 1699 udelay(10); 1700 1701 /* Clear the transmit and receive configuration registers. */ 1702 outw(RCR_CLEAR, ioaddr + RCR); 1703 outw(TCR_CLEAR, ioaddr + TCR); 1704 1705 /* Set the Window 1 control, configuration and station addr registers. 1706 No point in writing the I/O base register ;-> */ 1707 SMC_SELECT_BANK(1); 1708 /* Automatically release successfully transmitted packets, 1709 Accept link errors, counter and Tx error interrupts. */ 1710 outw(CTL_AUTO_RELEASE | CTL_TE_ENABLE | CTL_CR_ENABLE, 1711 ioaddr + CONTROL); 1712 smc_set_xcvr(dev, dev->if_port); 1713 if ((smc->manfid == MANFID_OSITECH) && 1714 (smc->cardid != PRODID_OSITECH_SEVEN)) 1715 outw((dev->if_port == 2 ? OSI_AUI_PWR : 0) | 1716 (inw(ioaddr-0x10+OSITECH_AUI_PWR) & 0xff00), 1717 ioaddr - 0x10 + OSITECH_AUI_PWR); 1718 1719 /* Fill in the physical address. The databook is wrong about the order! */ 1720 for (i = 0; i < 6; i += 2) 1721 outw((dev->dev_addr[i+1]<<8)+dev->dev_addr[i], 1722 ioaddr + ADDR0 + i); 1723 1724 /* Reset the MMU */ 1725 SMC_SELECT_BANK(2); 1726 outw(MC_RESET, ioaddr + MMU_CMD); 1727 outw(0, ioaddr + INTERRUPT); 1728 1729 /* Re-enable the chip. */ 1730 SMC_SELECT_BANK(0); 1731 outw(((smc->cfg & CFG_MII_SELECT) ? 0 : TCR_MONCSN) | 1732 TCR_ENABLE | TCR_PAD_EN | smc->duplex, ioaddr + TCR); 1733 set_rx_mode(dev); 1734 1735 if (smc->cfg & CFG_MII_SELECT) { 1736 SMC_SELECT_BANK(3); 1737 1738 /* Reset MII */ 1739 mdio_write(dev, smc->mii_if.phy_id, 0, 0x8000); 1740 1741 /* Advertise 100F, 100H, 10F, 10H */ 1742 mdio_write(dev, smc->mii_if.phy_id, 4, 0x01e1); 1743 1744 /* Restart MII autonegotiation */ 1745 mdio_write(dev, smc->mii_if.phy_id, 0, 0x0000); 1746 mdio_write(dev, smc->mii_if.phy_id, 0, 0x1200); 1747 } 1748 1749 /* Enable interrupts. */ 1750 SMC_SELECT_BANK(2); 1751 outw((IM_EPH_INT | IM_RX_OVRN_INT | IM_RCV_INT) << 8, 1752 ioaddr + INTERRUPT); 1753} 1754 1755/*====================================================================== 1756 1757 Media selection timer routine 1758 1759======================================================================*/ 1760 1761static void media_check(u_long arg) 1762{ 1763 struct net_device *dev = (struct net_device *) arg; 1764 struct smc_private *smc = netdev_priv(dev); 1765 unsigned int ioaddr = dev->base_addr; 1766 u_short i, media, saved_bank; 1767 u_short link; 1768 unsigned long flags; 1769 1770 spin_lock_irqsave(&smc->lock, flags); 1771 1772 saved_bank = inw(ioaddr + BANK_SELECT); 1773 1774 if (!netif_device_present(dev)) 1775 goto reschedule; 1776 1777 SMC_SELECT_BANK(2); 1778 1779 /* need MC_RESET to keep the memory consistent. errata? */ 1780 if (smc->rx_ovrn) { 1781 outw(MC_RESET, ioaddr + MMU_CMD); 1782 smc->rx_ovrn = 0; 1783 } 1784 i = inw(ioaddr + INTERRUPT); 1785 SMC_SELECT_BANK(0); 1786 media = inw(ioaddr + EPH) & EPH_LINK_OK; 1787 SMC_SELECT_BANK(1); 1788 media |= (inw(ioaddr + CONFIG) & CFG_AUI_SELECT) ? 2 : 1; 1789 1790 SMC_SELECT_BANK(saved_bank); 1791 spin_unlock_irqrestore(&smc->lock, flags); 1792 1793 /* Check for pending interrupt with watchdog flag set: with 1794 this, we can limp along even if the interrupt is blocked */ 1795 if (smc->watchdog++ && ((i>>8) & i)) { 1796 if (!smc->fast_poll) 1797 printk(KERN_INFO "%s: interrupt(s) dropped!\n", dev->name); 1798 local_irq_save(flags); 1799 smc_interrupt(dev->irq, dev); 1800 local_irq_restore(flags); 1801 smc->fast_poll = HZ; 1802 } 1803 if (smc->fast_poll) { 1804 smc->fast_poll--; 1805 smc->media.expires = jiffies + HZ/100; 1806 add_timer(&smc->media); 1807 return; 1808 } 1809 1810 spin_lock_irqsave(&smc->lock, flags); 1811 1812 saved_bank = inw(ioaddr + BANK_SELECT); 1813 1814 if (smc->cfg & CFG_MII_SELECT) { 1815 if (smc->mii_if.phy_id < 0) 1816 goto reschedule; 1817 1818 SMC_SELECT_BANK(3); 1819 link = mdio_read(dev, smc->mii_if.phy_id, 1); 1820 if (!link || (link == 0xffff)) { 1821 printk(KERN_INFO "%s: MII is missing!\n", dev->name); 1822 smc->mii_if.phy_id = -1; 1823 goto reschedule; 1824 } 1825 1826 link &= 0x0004; 1827 if (link != smc->link_status) { 1828 u_short p = mdio_read(dev, smc->mii_if.phy_id, 5); 1829 printk(KERN_INFO "%s: %s link beat\n", dev->name, 1830 (link) ? "found" : "lost"); 1831 smc->duplex = (((p & 0x0100) || ((p & 0x1c0) == 0x40)) 1832 ? TCR_FDUPLX : 0); 1833 if (link) { 1834 printk(KERN_INFO "%s: autonegotiation complete: " 1835 "%sbaseT-%cD selected\n", dev->name, 1836 ((p & 0x0180) ? "100" : "10"), 1837 (smc->duplex ? 'F' : 'H')); 1838 } 1839 SMC_SELECT_BANK(0); 1840 outw(inw(ioaddr + TCR) | smc->duplex, ioaddr + TCR); 1841 smc->link_status = link; 1842 } 1843 goto reschedule; 1844 } 1845 1846 /* Ignore collisions unless we've had no rx's recently */ 1847 if (time_after(jiffies, dev->last_rx + HZ)) { 1848 if (smc->tx_err || (smc->media_status & EPH_16COL)) 1849 media |= EPH_16COL; 1850 } 1851 smc->tx_err = 0; 1852 1853 if (media != smc->media_status) { 1854 if ((media & smc->media_status & 1) && 1855 ((smc->media_status ^ media) & EPH_LINK_OK)) 1856 printk(KERN_INFO "%s: %s link beat\n", dev->name, 1857 (smc->media_status & EPH_LINK_OK ? "lost" : "found")); 1858 else if ((media & smc->media_status & 2) && 1859 ((smc->media_status ^ media) & EPH_16COL)) 1860 printk(KERN_INFO "%s: coax cable %s\n", dev->name, 1861 (media & EPH_16COL ? "problem" : "ok")); 1862 if (dev->if_port == 0) { 1863 if (media & 1) { 1864 if (media & EPH_LINK_OK) 1865 printk(KERN_INFO "%s: flipped to 10baseT\n", 1866 dev->name); 1867 else 1868 smc_set_xcvr(dev, 2); 1869 } else { 1870 if (media & EPH_16COL) 1871 smc_set_xcvr(dev, 1); 1872 else 1873 printk(KERN_INFO "%s: flipped to 10base2\n", 1874 dev->name); 1875 } 1876 } 1877 smc->media_status = media; 1878 } 1879 1880reschedule: 1881 smc->media.expires = jiffies + HZ; 1882 add_timer(&smc->media); 1883 SMC_SELECT_BANK(saved_bank); 1884 spin_unlock_irqrestore(&smc->lock, flags); 1885} 1886 1887static int smc_link_ok(struct net_device *dev) 1888{ 1889 unsigned int ioaddr = dev->base_addr; 1890 struct smc_private *smc = netdev_priv(dev); 1891 1892 if (smc->cfg & CFG_MII_SELECT) { 1893 return mii_link_ok(&smc->mii_if); 1894 } else { 1895 SMC_SELECT_BANK(0); 1896 return inw(ioaddr + EPH) & EPH_LINK_OK; 1897 } 1898} 1899 1900static int smc_netdev_get_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd) 1901{ 1902 u16 tmp; 1903 unsigned int ioaddr = dev->base_addr; 1904 1905 ecmd->supported = (SUPPORTED_TP | SUPPORTED_AUI | 1906 SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full); 1907 1908 SMC_SELECT_BANK(1); 1909 tmp = inw(ioaddr + CONFIG); 1910 ecmd->port = (tmp & CFG_AUI_SELECT) ? PORT_AUI : PORT_TP; 1911 ecmd->transceiver = XCVR_INTERNAL; 1912 ecmd->speed = SPEED_10; 1913 ecmd->phy_address = ioaddr + MGMT; 1914 1915 SMC_SELECT_BANK(0); 1916 tmp = inw(ioaddr + TCR); 1917 ecmd->duplex = (tmp & TCR_FDUPLX) ? DUPLEX_FULL : DUPLEX_HALF; 1918 1919 return 0; 1920} 1921 1922static int smc_netdev_set_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd) 1923{ 1924 u16 tmp; 1925 unsigned int ioaddr = dev->base_addr; 1926 1927 if (ecmd->speed != SPEED_10) 1928 return -EINVAL; 1929 if (ecmd->duplex != DUPLEX_HALF && ecmd->duplex != DUPLEX_FULL) 1930 return -EINVAL; 1931 if (ecmd->port != PORT_TP && ecmd->port != PORT_AUI) 1932 return -EINVAL; 1933 if (ecmd->transceiver != XCVR_INTERNAL) 1934 return -EINVAL; 1935 1936 if (ecmd->port == PORT_AUI) 1937 smc_set_xcvr(dev, 1); 1938 else 1939 smc_set_xcvr(dev, 0); 1940 1941 SMC_SELECT_BANK(0); 1942 tmp = inw(ioaddr + TCR); 1943 if (ecmd->duplex == DUPLEX_FULL) 1944 tmp |= TCR_FDUPLX; 1945 else 1946 tmp &= ~TCR_FDUPLX; 1947 outw(tmp, ioaddr + TCR); 1948 1949 return 0; 1950} 1951 1952static int check_if_running(struct net_device *dev) 1953{ 1954 if (!netif_running(dev)) 1955 return -EINVAL; 1956 return 0; 1957} 1958 1959static void smc_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) 1960{ 1961 strcpy(info->driver, DRV_NAME); 1962 strcpy(info->version, DRV_VERSION); 1963} 1964 1965static int smc_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd) 1966{ 1967 struct smc_private *smc = netdev_priv(dev); 1968 unsigned int ioaddr = dev->base_addr; 1969 u16 saved_bank = inw(ioaddr + BANK_SELECT); 1970 int ret; 1971 unsigned long flags; 1972 1973 spin_lock_irqsave(&smc->lock, flags); 1974 SMC_SELECT_BANK(3); 1975 if (smc->cfg & CFG_MII_SELECT) 1976 ret = mii_ethtool_gset(&smc->mii_if, ecmd); 1977 else 1978 ret = smc_netdev_get_ecmd(dev, ecmd); 1979 SMC_SELECT_BANK(saved_bank); 1980 spin_unlock_irqrestore(&smc->lock, flags); 1981 return ret; 1982} 1983 1984static int smc_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd) 1985{ 1986 struct smc_private *smc = netdev_priv(dev); 1987 unsigned int ioaddr = dev->base_addr; 1988 u16 saved_bank = inw(ioaddr + BANK_SELECT); 1989 int ret; 1990 unsigned long flags; 1991 1992 spin_lock_irqsave(&smc->lock, flags); 1993 SMC_SELECT_BANK(3); 1994 if (smc->cfg & CFG_MII_SELECT) 1995 ret = mii_ethtool_sset(&smc->mii_if, ecmd); 1996 else 1997 ret = smc_netdev_set_ecmd(dev, ecmd); 1998 SMC_SELECT_BANK(saved_bank); 1999 spin_unlock_irqrestore(&smc->lock, flags); 2000 return ret; 2001} 2002 2003static u32 smc_get_link(struct net_device *dev) 2004{ 2005 struct smc_private *smc = netdev_priv(dev); 2006 unsigned int ioaddr = dev->base_addr; 2007 u16 saved_bank = inw(ioaddr + BANK_SELECT); 2008 u32 ret; 2009 unsigned long flags; 2010 2011 spin_lock_irqsave(&smc->lock, flags); 2012 SMC_SELECT_BANK(3); 2013 ret = smc_link_ok(dev); 2014 SMC_SELECT_BANK(saved_bank); 2015 spin_unlock_irqrestore(&smc->lock, flags); 2016 return ret; 2017} 2018 2019static int smc_nway_reset(struct net_device *dev) 2020{ 2021 struct smc_private *smc = netdev_priv(dev); 2022 if (smc->cfg & CFG_MII_SELECT) { 2023 unsigned int ioaddr = dev->base_addr; 2024 u16 saved_bank = inw(ioaddr + BANK_SELECT); 2025 int res; 2026 2027 SMC_SELECT_BANK(3); 2028 res = mii_nway_restart(&smc->mii_if); 2029 SMC_SELECT_BANK(saved_bank); 2030 2031 return res; 2032 } else 2033 return -EOPNOTSUPP; 2034} 2035 2036static const struct ethtool_ops ethtool_ops = { 2037 .begin = check_if_running, 2038 .get_drvinfo = smc_get_drvinfo, 2039 .get_settings = smc_get_settings, 2040 .set_settings = smc_set_settings, 2041 .get_link = smc_get_link, 2042 .nway_reset = smc_nway_reset, 2043}; 2044 2045static int smc_ioctl (struct net_device *dev, struct ifreq *rq, int cmd) 2046{ 2047 struct smc_private *smc = netdev_priv(dev); 2048 struct mii_ioctl_data *mii = if_mii(rq); 2049 int rc = 0; 2050 u16 saved_bank; 2051 unsigned int ioaddr = dev->base_addr; 2052 unsigned long flags; 2053 2054 if (!netif_running(dev)) 2055 return -EINVAL; 2056 2057 spin_lock_irqsave(&smc->lock, flags); 2058 saved_bank = inw(ioaddr + BANK_SELECT); 2059 SMC_SELECT_BANK(3); 2060 rc = generic_mii_ioctl(&smc->mii_if, mii, cmd, NULL); 2061 SMC_SELECT_BANK(saved_bank); 2062 spin_unlock_irqrestore(&smc->lock, flags); 2063 return rc; 2064} 2065 2066static struct pcmcia_device_id smc91c92_ids[] = { 2067 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0109, 0x0501), 2068 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0140, 0x000a), 2069 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "CC/XJEM3288", "DATA/FAX/CELL ETHERNET MODEM", 0xf510db04, 0x04cd2988, 0x46a52d63), 2070 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "CC/XJEM3336", "DATA/FAX/CELL ETHERNET MODEM", 0xf510db04, 0x0143b773, 0x46a52d63), 2071 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "EM1144T", "PCMCIA MODEM", 0xf510db04, 0x856d66c8, 0xbd6c43ef), 2072 PCMCIA_PFC_DEVICE_PROD_ID123(0, "MEGAHERTZ", "XJEM1144/CCEM1144", "PCMCIA MODEM", 0xf510db04, 0x52d21e1e, 0xbd6c43ef), 2073 PCMCIA_PFC_DEVICE_PROD_ID12(0, "Gateway 2000", "XJEM3336", 0xdd9989be, 0x662c394c), 2074 PCMCIA_PFC_DEVICE_PROD_ID12(0, "MEGAHERTZ", "XJEM1144/CCEM1144", 0xf510db04, 0x52d21e1e), 2075 PCMCIA_PFC_DEVICE_PROD_ID12(0, "Ositech", "Trumpcard:Jack of Diamonds Modem+Ethernet", 0xc2f80cd, 0x656947b9), 2076 PCMCIA_PFC_DEVICE_PROD_ID12(0, "Ositech", "Trumpcard:Jack of Hearts Modem+Ethernet", 0xc2f80cd, 0xdc9ba5ed), 2077 PCMCIA_MFC_DEVICE_MANF_CARD(0, 0x016c, 0x0020), 2078 PCMCIA_DEVICE_MANF_CARD(0x016c, 0x0023), 2079 PCMCIA_DEVICE_PROD_ID123("BASICS by New Media Corporation", "Ethernet", "SMC91C94", 0x23c78a9d, 0x00b2e941, 0xcef397fb), 2080 PCMCIA_DEVICE_PROD_ID12("ARGOSY", "Fast Ethernet PCCard", 0x78f308dc, 0xdcea68bc), 2081 PCMCIA_DEVICE_PROD_ID12("dit Co., Ltd.", "PC Card-10/100BTX", 0xe59365c8, 0x6a2161d1), 2082 PCMCIA_DEVICE_PROD_ID12("DYNALINK", "L100C", 0x6a26d1cf, 0xc16ce9c5), 2083 PCMCIA_DEVICE_PROD_ID12("Farallon", "Farallon Enet", 0x58d93fc4, 0x244734e9), 2084 PCMCIA_DEVICE_PROD_ID12("Megahertz", "CC10BT/2", 0x33234748, 0x3c95b953), 2085 PCMCIA_DEVICE_PROD_ID12("MELCO/SMC", "LPC-TX", 0xa2cd8e6d, 0x42da662a), 2086 PCMCIA_DEVICE_PROD_ID12("Ositech", "Trumpcard:Four of Diamonds Ethernet", 0xc2f80cd, 0xb3466314), 2087 PCMCIA_DEVICE_PROD_ID12("Ositech", "Trumpcard:Seven of Diamonds Ethernet", 0xc2f80cd, 0x194b650a), 2088 PCMCIA_DEVICE_PROD_ID12("PCMCIA", "Fast Ethernet PCCard", 0x281f1c5d, 0xdcea68bc), 2089 PCMCIA_DEVICE_PROD_ID12("Psion", "10Mb Ethernet", 0x4ef00b21, 0x844be9e9), 2090 PCMCIA_DEVICE_PROD_ID12("SMC", "EtherEZ Ethernet 8020", 0xc4f8b18b, 0x4a0eeb2d), 2091 /* These conflict with other cards! */ 2092 /* PCMCIA_DEVICE_MANF_CARD(0x0186, 0x0100), */ 2093 /* PCMCIA_DEVICE_MANF_CARD(0x8a01, 0xc1ab), */ 2094 PCMCIA_DEVICE_NULL, 2095}; 2096MODULE_DEVICE_TABLE(pcmcia, smc91c92_ids); 2097 2098static struct pcmcia_driver smc91c92_cs_driver = { 2099 .owner = THIS_MODULE, 2100 .drv = { 2101 .name = "smc91c92_cs", 2102 }, 2103 .probe = smc91c92_probe, 2104 .remove = smc91c92_detach, 2105 .id_table = smc91c92_ids, 2106 .suspend = smc91c92_suspend, 2107 .resume = smc91c92_resume, 2108}; 2109 2110static int __init init_smc91c92_cs(void) 2111{ 2112 return pcmcia_register_driver(&smc91c92_cs_driver); 2113} 2114 2115static void __exit exit_smc91c92_cs(void) 2116{ 2117 pcmcia_unregister_driver(&smc91c92_cs_driver); 2118} 2119 2120module_init(init_smc91c92_cs); 2121module_exit(exit_smc91c92_cs); 2122