1795 lines · c
1/* [xirc2ps_cs.c wk 03.11.99] (1.40 1999/11/18 00:06:03)2 * Xircom CreditCard Ethernet Adapter IIps driver3 * Xircom Realport 10/100 (RE-100) driver 4 *5 * This driver supports various Xircom CreditCard Ethernet adapters6 * including the CE2, CE IIps, RE-10, CEM28, CEM33, CE33, CEM56,7 * CE3-100, CE3B, RE-100, REM10BT, and REM56G-100.8 *9 * 2000-09-24 <psheer@icon.co.za> The Xircom CE3B-100 may not10 * autodetect the media properly. In this case use the11 * if_port=1 (for 10BaseT) or if_port=4 (for 100BaseT) options12 * to force the media type.13 * 14 * Written originally by Werner Koch based on David Hinds' skeleton of the15 * PCMCIA driver.16 *17 * Copyright (c) 1997,1998 Werner Koch (dd9jn)18 *19 * This driver is free software; you can redistribute it and/or modify20 * it under the terms of the GNU General Public License as published by21 * the Free Software Foundation; either version 2 of the License, or22 * (at your option) any later version.23 *24 * It is distributed in the hope that it will be useful,25 * but WITHOUT ANY WARRANTY; without even the implied warranty of26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the27 * GNU General Public License for more details.28 *29 * You should have received a copy of the GNU General Public License30 * along with this program; if not, see <http://www.gnu.org/licenses/>.31 *32 *33 * ALTERNATIVELY, this driver may be distributed under the terms of34 * the following license, in which case the provisions of this license35 * are required INSTEAD OF the GNU General Public License. (This clause36 * is necessary due to a potential bad interaction between the GPL and37 * the restrictions contained in a BSD-style copyright.)38 *39 * Redistribution and use in source and binary forms, with or without40 * modification, are permitted provided that the following conditions41 * are met:42 * 1. Redistributions of source code must retain the above copyright43 * notice, and the entire permission notice in its entirety,44 * including the disclaimer of warranties.45 * 2. Redistributions in binary form must reproduce the above copyright46 * notice, this list of conditions and the following disclaimer in the47 * documentation and/or other materials provided with the distribution.48 * 3. The name of the author may not be used to endorse or promote49 * products derived from this software without specific prior50 * written permission.51 *52 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED53 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES54 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE55 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,56 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES57 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR58 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)59 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,60 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)61 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED62 * OF THE POSSIBILITY OF SUCH DAMAGE.63 */64 65#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt66 67#include <linux/module.h>68#include <linux/kernel.h>69#include <linux/init.h>70#include <linux/ptrace.h>71#include <linux/slab.h>72#include <linux/string.h>73#include <linux/timer.h>74#include <linux/interrupt.h>75#include <linux/in.h>76#include <linux/delay.h>77#include <linux/ethtool.h>78#include <linux/netdevice.h>79#include <linux/etherdevice.h>80#include <linux/skbuff.h>81#include <linux/if_arp.h>82#include <linux/ioport.h>83#include <linux/bitops.h>84#include <linux/mii.h>85 86#include <pcmcia/cistpl.h>87#include <pcmcia/cisreg.h>88#include <pcmcia/ciscode.h>89 90#include <asm/io.h>91#include <linux/uaccess.h>92 93#ifndef MANFID_COMPAQ94 #define MANFID_COMPAQ 0x013895 #define MANFID_COMPAQ2 0x0183 /* is this correct? */96#endif97 98#include <pcmcia/ds.h>99 100/* Time in jiffies before concluding Tx hung */101#define TX_TIMEOUT ((400*HZ)/1000)102 103/****************104 * Some constants used to access the hardware105 */106 107/* Register offsets and value constans */108#define XIRCREG_CR 0 /* Command register (wr) */109enum xirc_cr {110 TransmitPacket = 0x01,111 SoftReset = 0x02,112 EnableIntr = 0x04,113 ForceIntr = 0x08,114 ClearTxFIFO = 0x10,115 ClearRxOvrun = 0x20,116 RestartTx = 0x40117};118#define XIRCREG_ESR 0 /* Ethernet status register (rd) */119enum xirc_esr {120 FullPktRcvd = 0x01, /* full packet in receive buffer */121 PktRejected = 0x04, /* a packet has been rejected */122 TxPktPend = 0x08, /* TX Packet Pending */123 IncorPolarity = 0x10,124 MediaSelect = 0x20 /* set if TP, clear if AUI */125};126#define XIRCREG_PR 1 /* Page Register select */127#define XIRCREG_EDP 4 /* Ethernet Data Port Register */128#define XIRCREG_ISR 6 /* Ethernet Interrupt Status Register */129enum xirc_isr {130 TxBufOvr = 0x01, /* TX Buffer Overflow */131 PktTxed = 0x02, /* Packet Transmitted */132 MACIntr = 0x04, /* MAC Interrupt occurred */133 TxResGrant = 0x08, /* Tx Reservation Granted */134 RxFullPkt = 0x20, /* Rx Full Packet */135 RxPktRej = 0x40, /* Rx Packet Rejected */136 ForcedIntr= 0x80 /* Forced Interrupt */137};138#define XIRCREG1_IMR0 12 /* Ethernet Interrupt Mask Register (on page 1)*/139#define XIRCREG1_IMR1 13140#define XIRCREG0_TSO 8 /* Transmit Space Open Register (on page 0)*/141#define XIRCREG0_TRS 10 /* Transmit reservation Size Register (page 0)*/142#define XIRCREG0_DO 12 /* Data Offset Register (page 0) (wr) */143#define XIRCREG0_RSR 12 /* Receive Status Register (page 0) (rd) */144enum xirc_rsr {145 PhyPkt = 0x01, /* set:physical packet, clear: multicast packet */146 BrdcstPkt = 0x02, /* set if it is a broadcast packet */147 PktTooLong = 0x04, /* set if packet length > 1518 */148 AlignErr = 0x10, /* incorrect CRC and last octet not complete */149 CRCErr = 0x20, /* incorrect CRC and last octet is complete */150 PktRxOk = 0x80 /* received ok */151};152#define XIRCREG0_PTR 13 /* packets transmitted register (rd) */153#define XIRCREG0_RBC 14 /* receive byte count regsister (rd) */154#define XIRCREG1_ECR 14 /* ethernet configurationn register */155enum xirc_ecr {156 FullDuplex = 0x04, /* enable full duplex mode */157 LongTPMode = 0x08, /* adjust for longer lengths of TP cable */158 DisablePolCor = 0x10,/* disable auto polarity correction */159 DisableLinkPulse = 0x20, /* disable link pulse generation */160 DisableAutoTx = 0x40, /* disable auto-transmit */161};162#define XIRCREG2_RBS 8 /* receive buffer start register */163#define XIRCREG2_LED 10 /* LED Configuration register */164/* values for the leds: Bits 2-0 for led 1165 * 0 disabled Bits 5-3 for led 2166 * 1 collision167 * 2 noncollision168 * 3 link_detected169 * 4 incor_polarity170 * 5 jabber171 * 6 auto_assertion172 * 7 rx_tx_activity173 */174#define XIRCREG2_MSR 12 /* Mohawk specific register */175 176#define XIRCREG4_GPR0 8 /* General Purpose Register 0 */177#define XIRCREG4_GPR1 9 /* General Purpose Register 1 */178#define XIRCREG2_GPR2 13 /* General Purpose Register 2 (page2!)*/179#define XIRCREG4_BOV 10 /* Bonding Version Register */180#define XIRCREG4_LMA 12 /* Local Memory Address Register */181#define XIRCREG4_LMD 14 /* Local Memory Data Port */182/* MAC register can only by accessed with 8 bit operations */183#define XIRCREG40_CMD0 8 /* Command Register (wr) */184enum xirc_cmd { /* Commands */185 Transmit = 0x01,186 EnableRecv = 0x04,187 DisableRecv = 0x08,188 Abort = 0x10,189 Online = 0x20,190 IntrAck = 0x40,191 Offline = 0x80192};193#define XIRCREG5_RHSA0 10 /* Rx Host Start Address */194#define XIRCREG40_RXST0 9 /* Receive Status Register */195#define XIRCREG40_TXST0 11 /* Transmit Status Register 0 */196#define XIRCREG40_TXST1 12 /* Transmit Status Register 10 */197#define XIRCREG40_RMASK0 13 /* Receive Mask Register */198#define XIRCREG40_TMASK0 14 /* Transmit Mask Register 0 */199#define XIRCREG40_TMASK1 15 /* Transmit Mask Register 0 */200#define XIRCREG42_SWC0 8 /* Software Configuration 0 */201#define XIRCREG42_SWC1 9 /* Software Configuration 1 */202#define XIRCREG42_BOC 10 /* Back-Off Configuration */203#define XIRCREG44_TDR0 8 /* Time Domain Reflectometry 0 */204#define XIRCREG44_TDR1 9 /* Time Domain Reflectometry 1 */205#define XIRCREG44_RXBC_LO 10 /* Rx Byte Count 0 (rd) */206#define XIRCREG44_RXBC_HI 11 /* Rx Byte Count 1 (rd) */207#define XIRCREG45_REV 15 /* Revision Register (rd) */208#define XIRCREG50_IA 8 /* Individual Address (8-13) */209 210static const char *if_names[] = { "Auto", "10BaseT", "10Base2", "AUI", "100BaseT" };211 212/* card types */213#define XIR_UNKNOWN 0 /* unknown: not supported */214#define XIR_CE 1 /* (prodid 1) different hardware: not supported */215#define XIR_CE2 2 /* (prodid 2) */216#define XIR_CE3 3 /* (prodid 3) */217#define XIR_CEM 4 /* (prodid 1) different hardware: not supported */218#define XIR_CEM2 5 /* (prodid 2) */219#define XIR_CEM3 6 /* (prodid 3) */220#define XIR_CEM33 7 /* (prodid 4) */221#define XIR_CEM56M 8 /* (prodid 5) */222#define XIR_CEM56 9 /* (prodid 6) */223#define XIR_CM28 10 /* (prodid 3) modem only: not supported here */224#define XIR_CM33 11 /* (prodid 4) modem only: not supported here */225#define XIR_CM56 12 /* (prodid 5) modem only: not supported here */226#define XIR_CG 13 /* (prodid 1) GSM modem only: not supported */227#define XIR_CBE 14 /* (prodid 1) cardbus ethernet: not supported */228/*====================================================================*/229 230/* Module parameters */231 232MODULE_DESCRIPTION("Xircom PCMCIA ethernet driver");233MODULE_LICENSE("Dual MPL/GPL");234 235#define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0)236 237INT_MODULE_PARM(if_port, 0);238INT_MODULE_PARM(full_duplex, 0);239INT_MODULE_PARM(do_sound, 1);240INT_MODULE_PARM(lockup_hack, 0); /* anti lockup hack */241 242/*====================================================================*/243 244/* We do not process more than these number of bytes during one245 * interrupt. (Of course we receive complete packets, so this is not246 * an exact value).247 * Something between 2000..22000; first value gives best interrupt latency,248 * the second enables the usage of the complete on-chip buffer. We use the249 * high value as the initial value.250 */251static unsigned maxrx_bytes = 22000;252 253/* MII management prototypes */254static void mii_idle(unsigned int ioaddr);255static void mii_putbit(unsigned int ioaddr, unsigned data);256static int mii_getbit(unsigned int ioaddr);257static void mii_wbits(unsigned int ioaddr, unsigned data, int len);258static unsigned mii_rd(unsigned int ioaddr, u_char phyaddr, u_char phyreg);259static void mii_wr(unsigned int ioaddr, u_char phyaddr, u_char phyreg,260 unsigned data, int len);261 262static int has_ce2_string(struct pcmcia_device * link);263static int xirc2ps_config(struct pcmcia_device * link);264static void xirc2ps_release(struct pcmcia_device * link);265static void xirc2ps_detach(struct pcmcia_device *p_dev);266 267static irqreturn_t xirc2ps_interrupt(int irq, void *dev_id);268 269struct local_info {270 struct net_device *dev;271 struct pcmcia_device *p_dev;272 273 int card_type;274 int probe_port;275 int silicon; /* silicon revision. 0=old CE2, 1=Scipper, 4=Mohawk */276 int mohawk; /* a CE3 type card */277 int dingo; /* a CEM56 type card */278 int new_mii; /* has full 10baseT/100baseT MII */279 int modem; /* is a multi function card (i.e with a modem) */280 void __iomem *dingo_ccr; /* only used for CEM56 cards */281 unsigned last_ptr_value; /* last packets transmitted value */282 const char *manf_str;283 struct work_struct tx_timeout_task;284};285 286/****************287 * Some more prototypes288 */289static netdev_tx_t do_start_xmit(struct sk_buff *skb,290 struct net_device *dev);291static void xirc_tx_timeout(struct net_device *dev, unsigned int txqueue);292static void xirc2ps_tx_timeout_task(struct work_struct *work);293static void set_addresses(struct net_device *dev);294static void set_multicast_list(struct net_device *dev);295static int set_card_type(struct pcmcia_device *link);296static int do_config(struct net_device *dev, struct ifmap *map);297static int do_open(struct net_device *dev);298static int do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);299static const struct ethtool_ops netdev_ethtool_ops;300static void hardreset(struct net_device *dev);301static void do_reset(struct net_device *dev, int full);302static int init_mii(struct net_device *dev);303static void do_powerdown(struct net_device *dev);304static int do_stop(struct net_device *dev);305 306/*=============== Helper functions =========================*/307#define SelectPage(pgnr) outb((pgnr), ioaddr + XIRCREG_PR)308#define GetByte(reg) ((unsigned)inb(ioaddr + (reg)))309#define GetWord(reg) ((unsigned)inw(ioaddr + (reg)))310#define PutByte(reg,value) outb((value), ioaddr+(reg))311#define PutWord(reg,value) outw((value), ioaddr+(reg))312 313/*====== Functions used for debugging =================================*/314#if 0 /* reading regs may change system status */315static void316PrintRegisters(struct net_device *dev)317{318 unsigned int ioaddr = dev->base_addr;319 320 if (pc_debug > 1) {321 int i, page;322 323 printk(KERN_DEBUG pr_fmt("Register common: "));324 for (i = 0; i < 8; i++)325 pr_cont(" %2.2x", GetByte(i));326 pr_cont("\n");327 for (page = 0; page <= 8; page++) {328 printk(KERN_DEBUG pr_fmt("Register page %2x: "), page);329 SelectPage(page);330 for (i = 8; i < 16; i++)331 pr_cont(" %2.2x", GetByte(i));332 pr_cont("\n");333 }334 for (page=0x40 ; page <= 0x5f; page++) {335 if (page == 0x43 || (page >= 0x46 && page <= 0x4f) ||336 (page >= 0x51 && page <=0x5e))337 continue;338 printk(KERN_DEBUG pr_fmt("Register page %2x: "), page);339 SelectPage(page);340 for (i = 8; i < 16; i++)341 pr_cont(" %2.2x", GetByte(i));342 pr_cont("\n");343 }344 }345}346#endif /* 0 */347 348/*============== MII Management functions ===============*/349 350/****************351 * Turn around for read352 */353static void354mii_idle(unsigned int ioaddr)355{356 PutByte(XIRCREG2_GPR2, 0x04|0); /* drive MDCK low */357 udelay(1);358 PutByte(XIRCREG2_GPR2, 0x04|1); /* and drive MDCK high */359 udelay(1);360}361 362/****************363 * Write a bit to MDI/O364 */365static void366mii_putbit(unsigned int ioaddr, unsigned data)367{368 #if 1369 if (data) {370 PutByte(XIRCREG2_GPR2, 0x0c|2|0); /* set MDIO */371 udelay(1);372 PutByte(XIRCREG2_GPR2, 0x0c|2|1); /* and drive MDCK high */373 udelay(1);374 } else {375 PutByte(XIRCREG2_GPR2, 0x0c|0|0); /* clear MDIO */376 udelay(1);377 PutByte(XIRCREG2_GPR2, 0x0c|0|1); /* and drive MDCK high */378 udelay(1);379 }380 #else381 if (data) {382 PutWord(XIRCREG2_GPR2-1, 0x0e0e);383 udelay(1);384 PutWord(XIRCREG2_GPR2-1, 0x0f0f);385 udelay(1);386 } else {387 PutWord(XIRCREG2_GPR2-1, 0x0c0c);388 udelay(1);389 PutWord(XIRCREG2_GPR2-1, 0x0d0d);390 udelay(1);391 }392 #endif393}394 395/****************396 * Get a bit from MDI/O397 */398static int399mii_getbit(unsigned int ioaddr)400{401 unsigned d;402 403 PutByte(XIRCREG2_GPR2, 4|0); /* drive MDCK low */404 udelay(1);405 d = GetByte(XIRCREG2_GPR2); /* read MDIO */406 PutByte(XIRCREG2_GPR2, 4|1); /* drive MDCK high again */407 udelay(1);408 return d & 0x20; /* read MDIO */409}410 411static void412mii_wbits(unsigned int ioaddr, unsigned data, int len)413{414 unsigned m = 1 << (len-1);415 for (; m; m >>= 1)416 mii_putbit(ioaddr, data & m);417}418 419static unsigned420mii_rd(unsigned int ioaddr, u_char phyaddr, u_char phyreg)421{422 int i;423 unsigned data=0, m;424 425 SelectPage(2);426 for (i=0; i < 32; i++) /* 32 bit preamble */427 mii_putbit(ioaddr, 1);428 mii_wbits(ioaddr, 0x06, 4); /* Start and opcode for read */429 mii_wbits(ioaddr, phyaddr, 5); /* PHY address to be accessed */430 mii_wbits(ioaddr, phyreg, 5); /* PHY register to read */431 mii_idle(ioaddr); /* turn around */432 mii_getbit(ioaddr);433 434 for (m = 1<<15; m; m >>= 1)435 if (mii_getbit(ioaddr))436 data |= m;437 mii_idle(ioaddr);438 return data;439}440 441static void442mii_wr(unsigned int ioaddr, u_char phyaddr, u_char phyreg, unsigned data,443 int len)444{445 int i;446 447 SelectPage(2);448 for (i=0; i < 32; i++) /* 32 bit preamble */449 mii_putbit(ioaddr, 1);450 mii_wbits(ioaddr, 0x05, 4); /* Start and opcode for write */451 mii_wbits(ioaddr, phyaddr, 5); /* PHY address to be accessed */452 mii_wbits(ioaddr, phyreg, 5); /* PHY Register to write */453 mii_putbit(ioaddr, 1); /* turn around */454 mii_putbit(ioaddr, 0);455 mii_wbits(ioaddr, data, len); /* And write the data */456 mii_idle(ioaddr);457}458 459/*============= Main bulk of functions =========================*/460 461static const struct net_device_ops netdev_ops = {462 .ndo_open = do_open,463 .ndo_stop = do_stop,464 .ndo_start_xmit = do_start_xmit,465 .ndo_tx_timeout = xirc_tx_timeout,466 .ndo_set_config = do_config,467 .ndo_eth_ioctl = do_ioctl,468 .ndo_set_rx_mode = set_multicast_list,469 .ndo_set_mac_address = eth_mac_addr,470 .ndo_validate_addr = eth_validate_addr,471};472 473static int474xirc2ps_probe(struct pcmcia_device *link)475{476 struct net_device *dev;477 struct local_info *local;478 479 dev_dbg(&link->dev, "attach()\n");480 481 /* Allocate the device structure */482 dev = alloc_etherdev(sizeof(struct local_info));483 if (!dev)484 return -ENOMEM;485 local = netdev_priv(dev);486 local->dev = dev;487 local->p_dev = link;488 link->priv = dev;489 490 /* General socket configuration */491 link->config_index = 1;492 493 /* Fill in card specific entries */494 dev->netdev_ops = &netdev_ops;495 dev->ethtool_ops = &netdev_ethtool_ops;496 dev->watchdog_timeo = TX_TIMEOUT;497 INIT_WORK(&local->tx_timeout_task, xirc2ps_tx_timeout_task);498 499 return xirc2ps_config(link);500} /* xirc2ps_attach */501 502static void503xirc2ps_detach(struct pcmcia_device *link)504{505 struct net_device *dev = link->priv;506 struct local_info *local = netdev_priv(dev);507 508 netif_carrier_off(dev);509 netif_tx_disable(dev);510 cancel_work_sync(&local->tx_timeout_task);511 512 dev_dbg(&link->dev, "detach\n");513 514 unregister_netdev(dev);515 516 xirc2ps_release(link);517 518 free_netdev(dev);519} /* xirc2ps_detach */520 521/****************522 * Detect the type of the card. s is the buffer with the data of tuple 0x20523 * Returns: 0 := not supported524 * mediaid=11 and prodid=47525 * Media-Id bits:526 * Ethernet 0x01527 * Tokenring 0x02528 * Arcnet 0x04529 * Wireless 0x08530 * Modem 0x10531 * GSM only 0x20532 * Prod-Id bits:533 * Pocket 0x10534 * External 0x20535 * Creditcard 0x40536 * Cardbus 0x80537 *538 */539static int540set_card_type(struct pcmcia_device *link)541{542 struct net_device *dev = link->priv;543 struct local_info *local = netdev_priv(dev);544 u8 *buf;545 unsigned int cisrev, mediaid, prodid;546 size_t len;547 548 len = pcmcia_get_tuple(link, CISTPL_MANFID, &buf);549 if (len < 5) {550 dev_err(&link->dev, "invalid CIS -- sorry\n");551 return 0;552 }553 554 cisrev = buf[2];555 mediaid = buf[3];556 prodid = buf[4];557 558 dev_dbg(&link->dev, "cisrev=%02x mediaid=%02x prodid=%02x\n",559 cisrev, mediaid, prodid);560 561 local->mohawk = 0;562 local->dingo = 0;563 local->modem = 0;564 local->card_type = XIR_UNKNOWN;565 if (!(prodid & 0x40)) {566 pr_notice("Oops: Not a creditcard\n");567 return 0;568 }569 if (!(mediaid & 0x01)) {570 pr_notice("Not an Ethernet card\n");571 return 0;572 }573 if (mediaid & 0x10) {574 local->modem = 1;575 switch(prodid & 15) {576 case 1: local->card_type = XIR_CEM ; break;577 case 2: local->card_type = XIR_CEM2 ; break;578 case 3: local->card_type = XIR_CEM3 ; break;579 case 4: local->card_type = XIR_CEM33 ; break;580 case 5: local->card_type = XIR_CEM56M;581 local->mohawk = 1;582 break;583 case 6:584 case 7: /* 7 is the RealPort 10/56 */585 local->card_type = XIR_CEM56 ;586 local->mohawk = 1;587 local->dingo = 1;588 break;589 }590 } else {591 switch(prodid & 15) {592 case 1: local->card_type = has_ce2_string(link)? XIR_CE2 : XIR_CE ;593 break;594 case 2: local->card_type = XIR_CE2; break;595 case 3: local->card_type = XIR_CE3;596 local->mohawk = 1;597 break;598 }599 }600 if (local->card_type == XIR_CE || local->card_type == XIR_CEM) {601 pr_notice("Sorry, this is an old CE card\n");602 return 0;603 }604 if (local->card_type == XIR_UNKNOWN)605 pr_notice("unknown card (mediaid=%02x prodid=%02x)\n", mediaid, prodid);606 607 return 1;608}609 610/****************611 * There are some CE2 cards out which claim to be a CE card.612 * This function looks for a "CE2" in the 3rd version field.613 * Returns: true if this is a CE2614 */615static int616has_ce2_string(struct pcmcia_device * p_dev)617{618 if (p_dev->prod_id[2] && strstr(p_dev->prod_id[2], "CE2"))619 return 1;620 return 0;621}622 623static int624xirc2ps_config_modem(struct pcmcia_device *p_dev, void *priv_data)625{626 unsigned int ioaddr;627 628 if ((p_dev->resource[0]->start & 0xf) == 8)629 return -ENODEV;630 631 p_dev->resource[0]->end = 16;632 p_dev->resource[1]->end = 8;633 p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;634 p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_16;635 p_dev->resource[1]->flags &= ~IO_DATA_PATH_WIDTH;636 p_dev->resource[1]->flags |= IO_DATA_PATH_WIDTH_8;637 p_dev->io_lines = 10;638 639 p_dev->resource[1]->start = p_dev->resource[0]->start;640 for (ioaddr = 0x300; ioaddr < 0x400; ioaddr += 0x10) {641 p_dev->resource[0]->start = ioaddr;642 if (!pcmcia_request_io(p_dev))643 return 0;644 }645 return -ENODEV;646}647 648static int649xirc2ps_config_check(struct pcmcia_device *p_dev, void *priv_data)650{651 int *pass = priv_data;652 resource_size_t tmp = p_dev->resource[1]->start;653 654 tmp += (*pass ? (p_dev->config_index & 0x20 ? -24 : 8)655 : (p_dev->config_index & 0x20 ? 8 : -24));656 657 if ((p_dev->resource[0]->start & 0xf) == 8)658 return -ENODEV;659 660 p_dev->resource[0]->end = 18;661 p_dev->resource[1]->end = 8;662 p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;663 p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_16;664 p_dev->resource[1]->flags &= ~IO_DATA_PATH_WIDTH;665 p_dev->resource[1]->flags |= IO_DATA_PATH_WIDTH_8;666 p_dev->io_lines = 10;667 668 p_dev->resource[1]->start = p_dev->resource[0]->start;669 p_dev->resource[0]->start = tmp;670 return pcmcia_request_io(p_dev);671}672 673 674static int pcmcia_get_mac_ce(struct pcmcia_device *p_dev,675 tuple_t *tuple,676 void *priv)677{678 struct net_device *dev = priv;679 680 if (tuple->TupleDataLen != 13)681 return -EINVAL;682 if ((tuple->TupleData[0] != 2) || (tuple->TupleData[1] != 1) ||683 (tuple->TupleData[2] != 6))684 return -EINVAL;685 /* another try (James Lehmer's CE2 version 4.1)*/686 dev_addr_mod(dev, 2, &tuple->TupleData[2], 4);687 return 0;688};689 690 691static int692xirc2ps_config(struct pcmcia_device * link)693{694 struct net_device *dev = link->priv;695 struct local_info *local = netdev_priv(dev);696 unsigned int ioaddr;697 int err;698 u8 *buf;699 size_t len;700 701 local->dingo_ccr = NULL;702 703 dev_dbg(&link->dev, "config\n");704 705 /* Is this a valid card */706 if (link->has_manf_id == 0) {707 pr_notice("manfid not found in CIS\n");708 goto failure;709 }710 711 switch (link->manf_id) {712 case MANFID_XIRCOM:713 local->manf_str = "Xircom";714 break;715 case MANFID_ACCTON:716 local->manf_str = "Accton";717 break;718 case MANFID_COMPAQ:719 case MANFID_COMPAQ2:720 local->manf_str = "Compaq";721 break;722 case MANFID_INTEL:723 local->manf_str = "Intel";724 break;725 case MANFID_TOSHIBA:726 local->manf_str = "Toshiba";727 break;728 default:729 pr_notice("Unknown Card Manufacturer ID: 0x%04x\n",730 (unsigned)link->manf_id);731 goto failure;732 }733 dev_dbg(&link->dev, "found %s card\n", local->manf_str);734 735 if (!set_card_type(link)) {736 pr_notice("this card is not supported\n");737 goto failure;738 }739 740 /* get the ethernet address from the CIS */741 err = pcmcia_get_mac_from_cis(link, dev);742 743 /* not found: try to get the node-id from tuple 0x89 */744 if (err) {745 len = pcmcia_get_tuple(link, 0x89, &buf);746 /* data layout looks like tuple 0x22 */747 if (buf && len == 8) {748 if (*buf == CISTPL_FUNCE_LAN_NODE_ID)749 dev_addr_mod(dev, 2, &buf[2], 4);750 else751 err = -1;752 }753 kfree(buf);754 }755 756 if (err)757 err = pcmcia_loop_tuple(link, CISTPL_FUNCE, pcmcia_get_mac_ce, dev);758 759 if (err) {760 pr_notice("node-id not found in CIS\n");761 goto failure;762 }763 764 if (local->modem) {765 int pass;766 link->config_flags |= CONF_AUTO_SET_IO;767 768 if (local->dingo) {769 /* Take the Modem IO port from the CIS and scan for a free770 * Ethernet port */771 if (!pcmcia_loop_config(link, xirc2ps_config_modem, NULL))772 goto port_found;773 } else {774 /* We do 2 passes here: The first one uses the regular mapping and775 * the second tries again, thereby considering that the 32 ports are776 * mirrored every 32 bytes. Actually we use a mirrored port for777 * the Mako if (on the first pass) the COR bit 5 is set.778 */779 for (pass=0; pass < 2; pass++)780 if (!pcmcia_loop_config(link, xirc2ps_config_check,781 &pass))782 goto port_found;783 /* if special option:784 * try to configure as Ethernet only.785 * .... */786 }787 pr_notice("no ports available\n");788 } else {789 link->io_lines = 10;790 link->resource[0]->end = 16;791 link->resource[0]->flags |= IO_DATA_PATH_WIDTH_16;792 for (ioaddr = 0x300; ioaddr < 0x400; ioaddr += 0x10) {793 link->resource[0]->start = ioaddr;794 if (!(err = pcmcia_request_io(link)))795 goto port_found;796 }797 link->resource[0]->start = 0; /* let CS decide */798 if ((err = pcmcia_request_io(link)))799 goto config_error;800 }801 port_found:802 803 /****************804 * Now allocate an interrupt line. Note that this does not805 * actually assign a handler to the interrupt.806 */807 if ((err=pcmcia_request_irq(link, xirc2ps_interrupt)))808 goto config_error;809 810 link->config_flags |= CONF_ENABLE_IRQ;811 if (do_sound)812 link->config_flags |= CONF_ENABLE_SPKR;813 814 if ((err = pcmcia_enable_device(link)))815 goto config_error;816 817 if (local->dingo) {818 /* Reset the modem's BAR to the correct value819 * This is necessary because in the RequestConfiguration call,820 * the base address of the ethernet port (BasePort1) is written821 * to the BAR registers of the modem.822 */823 err = pcmcia_write_config_byte(link, CISREG_IOBASE_0, (u8)824 link->resource[1]->start & 0xff);825 if (err)826 goto config_error;827 828 err = pcmcia_write_config_byte(link, CISREG_IOBASE_1,829 (link->resource[1]->start >> 8) & 0xff);830 if (err)831 goto config_error;832 833 /* There is no config entry for the Ethernet part which834 * is at 0x0800. So we allocate a window into the attribute835 * memory and write direct to the CIS registers836 */837 link->resource[2]->flags = WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_AM |838 WIN_ENABLE;839 link->resource[2]->start = link->resource[2]->end = 0;840 if ((err = pcmcia_request_window(link, link->resource[2], 0)))841 goto config_error;842 843 local->dingo_ccr = ioremap(link->resource[2]->start, 0x1000) + 0x0800;844 if ((err = pcmcia_map_mem_page(link, link->resource[2], 0)))845 goto config_error;846 847 /* Setup the CCRs; there are no infos in the CIS about the Ethernet848 * part.849 */850 writeb(0x47, local->dingo_ccr + CISREG_COR);851 ioaddr = link->resource[0]->start;852 writeb(ioaddr & 0xff , local->dingo_ccr + CISREG_IOBASE_0);853 writeb((ioaddr >> 8)&0xff , local->dingo_ccr + CISREG_IOBASE_1);854 855 #if 0856 {857 u_char tmp;858 pr_info("ECOR:");859 for (i=0; i < 7; i++) {860 tmp = readb(local->dingo_ccr + i*2);861 pr_cont(" %02x", tmp);862 }863 pr_cont("\n");864 pr_info("DCOR:");865 for (i=0; i < 4; i++) {866 tmp = readb(local->dingo_ccr + 0x20 + i*2);867 pr_cont(" %02x", tmp);868 }869 pr_cont("\n");870 pr_info("SCOR:");871 for (i=0; i < 10; i++) {872 tmp = readb(local->dingo_ccr + 0x40 + i*2);873 pr_cont(" %02x", tmp);874 }875 pr_cont("\n");876 }877 #endif878 879 writeb(0x01, local->dingo_ccr + 0x20);880 writeb(0x0c, local->dingo_ccr + 0x22);881 writeb(0x00, local->dingo_ccr + 0x24);882 writeb(0x00, local->dingo_ccr + 0x26);883 writeb(0x00, local->dingo_ccr + 0x28);884 }885 886 /* The if_port symbol can be set when the module is loaded */887 local->probe_port=0;888 if (!if_port) {889 local->probe_port = dev->if_port = 1;890 } else if ((if_port >= 1 && if_port <= 2) ||891 (local->mohawk && if_port==4))892 dev->if_port = if_port;893 else894 pr_notice("invalid if_port requested\n");895 896 /* we can now register the device with the net subsystem */897 dev->irq = link->irq;898 dev->base_addr = link->resource[0]->start;899 900 if (local->dingo)901 do_reset(dev, 1); /* a kludge to make the cem56 work */902 903 SET_NETDEV_DEV(dev, &link->dev);904 905 if ((err=register_netdev(dev))) {906 pr_notice("register_netdev() failed\n");907 goto config_error;908 }909 910 /* give some infos about the hardware */911 netdev_info(dev, "%s: port %#3lx, irq %d, hwaddr %pM\n",912 local->manf_str, (u_long)dev->base_addr, (int)dev->irq,913 dev->dev_addr);914 915 return 0;916 917 config_error:918 xirc2ps_release(link);919 return -ENODEV;920 921 failure:922 return -ENODEV;923} /* xirc2ps_config */924 925static void926xirc2ps_release(struct pcmcia_device *link)927{928 dev_dbg(&link->dev, "release\n");929 930 if (link->resource[2]->end) {931 struct net_device *dev = link->priv;932 struct local_info *local = netdev_priv(dev);933 if (local->dingo)934 iounmap(local->dingo_ccr - 0x0800);935 }936 pcmcia_disable_device(link);937} /* xirc2ps_release */938 939/*====================================================================*/940 941 942static int xirc2ps_suspend(struct pcmcia_device *link)943{944 struct net_device *dev = link->priv;945 946 if (link->open) {947 netif_device_detach(dev);948 do_powerdown(dev);949 }950 951 return 0;952}953 954static int xirc2ps_resume(struct pcmcia_device *link)955{956 struct net_device *dev = link->priv;957 958 if (link->open) {959 do_reset(dev,1);960 netif_device_attach(dev);961 }962 963 return 0;964}965 966 967/*====================================================================*/968 969/****************970 * This is the Interrupt service route.971 */972static irqreturn_t973xirc2ps_interrupt(int irq, void *dev_id)974{975 struct net_device *dev = (struct net_device *)dev_id;976 struct local_info *lp = netdev_priv(dev);977 unsigned int ioaddr;978 u_char saved_page;979 unsigned bytes_rcvd;980 unsigned int_status, eth_status, rx_status, tx_status;981 unsigned rsr, pktlen;982 ulong start_ticks = jiffies; /* fixme: jiffies rollover every 497 days983 * is this something to worry about?984 * -- on a laptop?985 */986 987 if (!netif_device_present(dev))988 return IRQ_HANDLED;989 990 ioaddr = dev->base_addr;991 if (lp->mohawk) { /* must disable the interrupt */992 PutByte(XIRCREG_CR, 0);993 }994 995 pr_debug("%s: interrupt %d at %#x.\n", dev->name, irq, ioaddr);996 997 saved_page = GetByte(XIRCREG_PR);998 /* Read the ISR to see whats the cause for the interrupt.999 * This also clears the interrupt flags on CE2 cards1000 */1001 int_status = GetByte(XIRCREG_ISR);1002 bytes_rcvd = 0;1003 loop_entry:1004 if (int_status == 0xff) { /* card may be ejected */1005 pr_debug("%s: interrupt %d for dead card\n", dev->name, irq);1006 goto leave;1007 }1008 eth_status = GetByte(XIRCREG_ESR);1009 1010 SelectPage(0x40);1011 rx_status = GetByte(XIRCREG40_RXST0);1012 PutByte(XIRCREG40_RXST0, (~rx_status & 0xff));1013 tx_status = GetByte(XIRCREG40_TXST0);1014 tx_status |= GetByte(XIRCREG40_TXST1) << 8;1015 PutByte(XIRCREG40_TXST0, 0);1016 PutByte(XIRCREG40_TXST1, 0);1017 1018 pr_debug("%s: ISR=%#2.2x ESR=%#2.2x RSR=%#2.2x TSR=%#4.4x\n",1019 dev->name, int_status, eth_status, rx_status, tx_status);1020 1021 /***** receive section ******/1022 SelectPage(0);1023 while (eth_status & FullPktRcvd) {1024 rsr = GetByte(XIRCREG0_RSR);1025 if (bytes_rcvd > maxrx_bytes && (rsr & PktRxOk)) {1026 /* too many bytes received during this int, drop the rest of the1027 * packets */1028 dev->stats.rx_dropped++;1029 pr_debug("%s: RX drop, too much done\n", dev->name);1030 } else if (rsr & PktRxOk) {1031 struct sk_buff *skb;1032 1033 pktlen = GetWord(XIRCREG0_RBC);1034 bytes_rcvd += pktlen;1035 1036 pr_debug("rsr=%#02x packet_length=%u\n", rsr, pktlen);1037 1038 /* 1 extra so we can use insw */1039 skb = netdev_alloc_skb(dev, pktlen + 3);1040 if (!skb) {1041 dev->stats.rx_dropped++;1042 } else { /* okay get the packet */1043 skb_reserve(skb, 2);1044 if (lp->silicon == 0 ) { /* work around a hardware bug */1045 unsigned rhsa; /* receive start address */1046 1047 SelectPage(5);1048 rhsa = GetWord(XIRCREG5_RHSA0);1049 SelectPage(0);1050 rhsa += 3; /* skip control infos */1051 if (rhsa >= 0x8000)1052 rhsa = 0;1053 if (rhsa + pktlen > 0x8000) {1054 unsigned i;1055 u_char *buf = skb_put(skb, pktlen);1056 for (i=0; i < pktlen ; i++, rhsa++) {1057 buf[i] = GetByte(XIRCREG_EDP);1058 if (rhsa == 0x8000) {1059 rhsa = 0;1060 i--;1061 }1062 }1063 } else {1064 insw(ioaddr+XIRCREG_EDP,1065 skb_put(skb, pktlen), (pktlen+1)>>1);1066 }1067 }1068 #if 01069 else if (lp->mohawk) {1070 /* To use this 32 bit access we should use1071 * a manual optimized loop1072 * Also the words are swapped, we can get more1073 * performance by using 32 bit access and swapping1074 * the words in a register. Will need this for cardbus1075 *1076 * Note: don't forget to change the ALLOC_SKB to .. +31077 */1078 unsigned i;1079 u_long *p = skb_put(skb, pktlen);1080 register u_long a;1081 unsigned int edpreg = ioaddr+XIRCREG_EDP-2;1082 for (i=0; i < len ; i += 4, p++) {1083 a = inl(edpreg);1084 __asm__("rorl $16,%0\n\t"1085 :"=q" (a)1086 : "0" (a));1087 *p = a;1088 }1089 }1090 #endif1091 else {1092 insw(ioaddr+XIRCREG_EDP, skb_put(skb, pktlen),1093 (pktlen+1)>>1);1094 }1095 skb->protocol = eth_type_trans(skb, dev);1096 netif_rx(skb);1097 dev->stats.rx_packets++;1098 dev->stats.rx_bytes += pktlen;1099 if (!(rsr & PhyPkt))1100 dev->stats.multicast++;1101 }1102 } else { /* bad packet */1103 pr_debug("rsr=%#02x\n", rsr);1104 }1105 if (rsr & PktTooLong) {1106 dev->stats.rx_frame_errors++;1107 pr_debug("%s: Packet too long\n", dev->name);1108 }1109 if (rsr & CRCErr) {1110 dev->stats.rx_crc_errors++;1111 pr_debug("%s: CRC error\n", dev->name);1112 }1113 if (rsr & AlignErr) {1114 dev->stats.rx_fifo_errors++; /* okay ? */1115 pr_debug("%s: Alignment error\n", dev->name);1116 }1117 1118 /* clear the received/dropped/error packet */1119 PutWord(XIRCREG0_DO, 0x8000); /* issue cmd: skip_rx_packet */1120 1121 /* get the new ethernet status */1122 eth_status = GetByte(XIRCREG_ESR);1123 }1124 if (rx_status & 0x10) { /* Receive overrun */1125 dev->stats.rx_over_errors++;1126 PutByte(XIRCREG_CR, ClearRxOvrun);1127 pr_debug("receive overrun cleared\n");1128 }1129 1130 /***** transmit section ******/1131 if (int_status & PktTxed) {1132 unsigned n, nn;1133 1134 n = lp->last_ptr_value;1135 nn = GetByte(XIRCREG0_PTR);1136 lp->last_ptr_value = nn;1137 if (nn < n) /* rollover */1138 dev->stats.tx_packets += 256 - n;1139 else if (n == nn) { /* happens sometimes - don't know why */1140 pr_debug("PTR not changed?\n");1141 } else1142 dev->stats.tx_packets += lp->last_ptr_value - n;1143 netif_wake_queue(dev);1144 }1145 if (tx_status & 0x0002) { /* Excessive collisions */1146 pr_debug("tx restarted due to excessive collisions\n");1147 PutByte(XIRCREG_CR, RestartTx); /* restart transmitter process */1148 }1149 if (tx_status & 0x0040)1150 dev->stats.tx_aborted_errors++;1151 1152 /* recalculate our work chunk so that we limit the duration of this1153 * ISR to about 1/10 of a second.1154 * Calculate only if we received a reasonable amount of bytes.1155 */1156 if (bytes_rcvd > 1000) {1157 u_long duration = jiffies - start_ticks;1158 1159 if (duration >= HZ/10) { /* if more than about 1/10 second */1160 maxrx_bytes = (bytes_rcvd * (HZ/10)) / duration;1161 if (maxrx_bytes < 2000)1162 maxrx_bytes = 2000;1163 else if (maxrx_bytes > 22000)1164 maxrx_bytes = 22000;1165 pr_debug("set maxrx=%u (rcvd=%u ticks=%lu)\n",1166 maxrx_bytes, bytes_rcvd, duration);1167 } else if (!duration && maxrx_bytes < 22000) {1168 /* now much faster */1169 maxrx_bytes += 2000;1170 if (maxrx_bytes > 22000)1171 maxrx_bytes = 22000;1172 pr_debug("set maxrx=%u\n", maxrx_bytes);1173 }1174 }1175 1176 leave:1177 if (lockup_hack) {1178 if (int_status != 0xff && (int_status = GetByte(XIRCREG_ISR)) != 0)1179 goto loop_entry;1180 }1181 SelectPage(saved_page);1182 PutByte(XIRCREG_CR, EnableIntr); /* re-enable interrupts */1183 /* Instead of dropping packets during a receive, we could1184 * force an interrupt with this command:1185 * PutByte(XIRCREG_CR, EnableIntr|ForceIntr);1186 */1187 return IRQ_HANDLED;1188} /* xirc2ps_interrupt */1189 1190/*====================================================================*/1191 1192static void1193xirc2ps_tx_timeout_task(struct work_struct *work)1194{1195 struct local_info *local =1196 container_of(work, struct local_info, tx_timeout_task);1197 struct net_device *dev = local->dev;1198 /* reset the card */1199 do_reset(dev,1);1200 netif_trans_update(dev); /* prevent tx timeout */1201 netif_wake_queue(dev);1202}1203 1204static void1205xirc_tx_timeout(struct net_device *dev, unsigned int txqueue)1206{1207 struct local_info *lp = netdev_priv(dev);1208 dev->stats.tx_errors++;1209 netdev_notice(dev, "transmit timed out\n");1210 schedule_work(&lp->tx_timeout_task);1211}1212 1213static netdev_tx_t1214do_start_xmit(struct sk_buff *skb, struct net_device *dev)1215{1216 struct local_info *lp = netdev_priv(dev);1217 unsigned int ioaddr = dev->base_addr;1218 int okay;1219 unsigned freespace;1220 unsigned pktlen = skb->len;1221 1222 pr_debug("do_start_xmit(skb=%p, dev=%p) len=%u\n",1223 skb, dev, pktlen);1224 1225 1226 /* adjust the packet length to min. required1227 * and hope that the buffer is large enough1228 * to provide some random data.1229 * fixme: For Mohawk we can change this by sending1230 * a larger packetlen than we actually have; the chip will1231 * pad this in his buffer with random bytes1232 */1233 if (pktlen < ETH_ZLEN)1234 {1235 if (skb_padto(skb, ETH_ZLEN))1236 return NETDEV_TX_OK;1237 pktlen = ETH_ZLEN;1238 }1239 1240 netif_stop_queue(dev);1241 SelectPage(0);1242 PutWord(XIRCREG0_TRS, (u_short)pktlen+2);1243 freespace = GetWord(XIRCREG0_TSO) & 0x7fff;1244 /* TRS doesn't work - (indeed it is eliminated with sil-rev 1) */1245 okay = pktlen +2 < freespace;1246 pr_debug("%s: avail. tx space=%u%s\n",1247 dev->name, freespace, okay ? " (okay)":" (not enough)");1248 if (!okay) { /* not enough space */1249 return NETDEV_TX_BUSY; /* upper layer may decide to requeue this packet */1250 }1251 /* send the packet */1252 PutWord(XIRCREG_EDP, (u_short)pktlen);1253 outsw(ioaddr+XIRCREG_EDP, skb->data, pktlen>>1);1254 if (pktlen & 1)1255 PutByte(XIRCREG_EDP, skb->data[pktlen-1]);1256 1257 if (lp->mohawk)1258 PutByte(XIRCREG_CR, TransmitPacket|EnableIntr);1259 1260 dev_kfree_skb (skb);1261 dev->stats.tx_bytes += pktlen;1262 netif_start_queue(dev);1263 return NETDEV_TX_OK;1264}1265 1266struct set_address_info {1267 int reg_nr;1268 int page_nr;1269 int mohawk;1270 unsigned int ioaddr;1271};1272 1273static void set_address(struct set_address_info *sa_info, const char *addr)1274{1275 unsigned int ioaddr = sa_info->ioaddr;1276 int i;1277 1278 for (i = 0; i < 6; i++) {1279 if (sa_info->reg_nr > 15) {1280 sa_info->reg_nr = 8;1281 sa_info->page_nr++;1282 SelectPage(sa_info->page_nr);1283 }1284 if (sa_info->mohawk)1285 PutByte(sa_info->reg_nr++, addr[5 - i]);1286 else1287 PutByte(sa_info->reg_nr++, addr[i]);1288 }1289}1290 1291/****************1292 * Set all addresses: This first one is the individual address,1293 * the next 9 addresses are taken from the multicast list and1294 * the rest is filled with the individual address.1295 */1296static void set_addresses(struct net_device *dev)1297{1298 unsigned int ioaddr = dev->base_addr;1299 struct local_info *lp = netdev_priv(dev);1300 struct netdev_hw_addr *ha;1301 struct set_address_info sa_info;1302 int i;1303 1304 /*1305 * Setup the info structure so that by first set_address call it will do1306 * SelectPage with the right page number. Hence these ones here.1307 */1308 sa_info.reg_nr = 15 + 1;1309 sa_info.page_nr = 0x50 - 1;1310 sa_info.mohawk = lp->mohawk;1311 sa_info.ioaddr = ioaddr;1312 1313 set_address(&sa_info, dev->dev_addr);1314 i = 0;1315 netdev_for_each_mc_addr(ha, dev) {1316 if (i++ == 9)1317 break;1318 set_address(&sa_info, ha->addr);1319 }1320 while (i++ < 9)1321 set_address(&sa_info, dev->dev_addr);1322 SelectPage(0);1323}1324 1325/****************1326 * Set or clear the multicast filter for this adaptor.1327 * We can filter up to 9 addresses, if more are requested we set1328 * multicast promiscuous mode.1329 */1330 1331static void1332set_multicast_list(struct net_device *dev)1333{1334 unsigned int ioaddr = dev->base_addr;1335 unsigned value;1336 1337 SelectPage(0x42);1338 value = GetByte(XIRCREG42_SWC1) & 0xC0;1339 1340 if (dev->flags & IFF_PROMISC) { /* snoop */1341 PutByte(XIRCREG42_SWC1, value | 0x06); /* set MPE and PME */1342 } else if (netdev_mc_count(dev) > 9 || (dev->flags & IFF_ALLMULTI)) {1343 PutByte(XIRCREG42_SWC1, value | 0x02); /* set MPE */1344 } else if (!netdev_mc_empty(dev)) {1345 /* the chip can filter 9 addresses perfectly */1346 PutByte(XIRCREG42_SWC1, value | 0x01);1347 SelectPage(0x40);1348 PutByte(XIRCREG40_CMD0, Offline);1349 set_addresses(dev);1350 SelectPage(0x40);1351 PutByte(XIRCREG40_CMD0, EnableRecv | Online);1352 } else { /* standard usage */1353 PutByte(XIRCREG42_SWC1, value | 0x00);1354 }1355 SelectPage(0);1356}1357 1358static int1359do_config(struct net_device *dev, struct ifmap *map)1360{1361 struct local_info *local = netdev_priv(dev);1362 1363 pr_debug("do_config(%p)\n", dev);1364 if (map->port != 255 && map->port != dev->if_port) {1365 if (map->port > 4)1366 return -EINVAL;1367 if (!map->port) {1368 local->probe_port = 1;1369 WRITE_ONCE(dev->if_port, 1);1370 } else {1371 local->probe_port = 0;1372 WRITE_ONCE(dev->if_port, map->port);1373 }1374 netdev_info(dev, "switching to %s port\n", if_names[dev->if_port]);1375 do_reset(dev,1); /* not the fine way :-) */1376 }1377 return 0;1378}1379 1380/****************1381 * Open the driver1382 */1383static int1384do_open(struct net_device *dev)1385{1386 struct local_info *lp = netdev_priv(dev);1387 struct pcmcia_device *link = lp->p_dev;1388 1389 dev_dbg(&link->dev, "do_open(%p)\n", dev);1390 1391 /* Check that the PCMCIA card is still here. */1392 /* Physical device present signature. */1393 if (!pcmcia_dev_present(link))1394 return -ENODEV;1395 1396 /* okay */1397 link->open++;1398 1399 netif_start_queue(dev);1400 do_reset(dev,1);1401 1402 return 0;1403}1404 1405static void netdev_get_drvinfo(struct net_device *dev,1406 struct ethtool_drvinfo *info)1407{1408 strscpy(info->driver, "xirc2ps_cs", sizeof(info->driver));1409 snprintf(info->bus_info, sizeof(info->bus_info), "PCMCIA 0x%lx",1410 dev->base_addr);1411}1412 1413static const struct ethtool_ops netdev_ethtool_ops = {1414 .get_drvinfo = netdev_get_drvinfo,1415};1416 1417static int1418do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)1419{1420 struct local_info *local = netdev_priv(dev);1421 unsigned int ioaddr = dev->base_addr;1422 struct mii_ioctl_data *data = if_mii(rq);1423 1424 pr_debug("%s: ioctl(%-.6s, %#04x) %04x %04x %04x %04x\n",1425 dev->name, rq->ifr_ifrn.ifrn_name, cmd,1426 data->phy_id, data->reg_num, data->val_in, data->val_out);1427 1428 if (!local->mohawk)1429 return -EOPNOTSUPP;1430 1431 switch(cmd) {1432 case SIOCGMIIPHY: /* Get the address of the PHY in use. */1433 data->phy_id = 0; /* we have only this address */1434 fallthrough;1435 case SIOCGMIIREG: /* Read the specified MII register. */1436 data->val_out = mii_rd(ioaddr, data->phy_id & 0x1f,1437 data->reg_num & 0x1f);1438 break;1439 case SIOCSMIIREG: /* Write the specified MII register */1440 mii_wr(ioaddr, data->phy_id & 0x1f, data->reg_num & 0x1f, data->val_in,1441 16);1442 break;1443 default:1444 return -EOPNOTSUPP;1445 }1446 return 0;1447}1448 1449static void1450hardreset(struct net_device *dev)1451{1452 struct local_info *local = netdev_priv(dev);1453 unsigned int ioaddr = dev->base_addr;1454 1455 SelectPage(4);1456 udelay(1);1457 PutByte(XIRCREG4_GPR1, 0); /* clear bit 0: power down */1458 msleep(40); /* wait 40 msec */1459 if (local->mohawk)1460 PutByte(XIRCREG4_GPR1, 1); /* set bit 0: power up */1461 else1462 PutByte(XIRCREG4_GPR1, 1 | 4); /* set bit 0: power up, bit 2: AIC */1463 msleep(20); /* wait 20 msec */1464}1465 1466static void1467do_reset(struct net_device *dev, int full)1468{1469 struct local_info *local = netdev_priv(dev);1470 unsigned int ioaddr = dev->base_addr;1471 unsigned value;1472 1473 pr_debug("%s: do_reset(%p,%d)\n", dev->name, dev, full);1474 1475 hardreset(dev);1476 PutByte(XIRCREG_CR, SoftReset); /* set */1477 msleep(20); /* wait 20 msec */1478 PutByte(XIRCREG_CR, 0); /* clear */1479 msleep(40); /* wait 40 msec */1480 if (local->mohawk) {1481 SelectPage(4);1482 /* set pin GP1 and GP2 to output (0x0c)1483 * set GP1 to low to power up the ML6692 (0x00)1484 * set GP2 to high to power up the 10Mhz chip (0x02)1485 */1486 PutByte(XIRCREG4_GPR0, 0x0e);1487 }1488 1489 /* give the circuits some time to power up */1490 msleep(500); /* about 500ms */1491 1492 local->last_ptr_value = 0;1493 local->silicon = local->mohawk ? (GetByte(XIRCREG4_BOV) & 0x70) >> 41494 : (GetByte(XIRCREG4_BOV) & 0x30) >> 4;1495 1496 if (local->probe_port) {1497 if (!local->mohawk) {1498 SelectPage(4);1499 PutByte(XIRCREG4_GPR0, 4);1500 local->probe_port = 0;1501 }1502 } else if (dev->if_port == 2) { /* enable 10Base2 */1503 SelectPage(0x42);1504 PutByte(XIRCREG42_SWC1, 0xC0);1505 } else { /* enable 10BaseT */1506 SelectPage(0x42);1507 PutByte(XIRCREG42_SWC1, 0x80);1508 }1509 msleep(40); /* wait 40 msec to let it complete */1510 1511 #if 01512 {1513 SelectPage(0);1514 value = GetByte(XIRCREG_ESR); /* read the ESR */1515 pr_debug("%s: ESR is: %#02x\n", dev->name, value);1516 }1517 #endif1518 1519 /* setup the ECR */1520 SelectPage(1);1521 PutByte(XIRCREG1_IMR0, 0xff); /* allow all ints */1522 PutByte(XIRCREG1_IMR1, 1 ); /* and Set TxUnderrunDetect */1523 value = GetByte(XIRCREG1_ECR);1524 #if 01525 if (local->mohawk)1526 value |= DisableLinkPulse;1527 PutByte(XIRCREG1_ECR, value);1528 #endif1529 pr_debug("%s: ECR is: %#02x\n", dev->name, value);1530 1531 SelectPage(0x42);1532 PutByte(XIRCREG42_SWC0, 0x20); /* disable source insertion */1533 1534 if (local->silicon != 1) {1535 /* set the local memory dividing line.1536 * The comments in the sample code say that this is only1537 * settable with the scipper version 2 which is revision 0.1538 * Always for CE3 cards1539 */1540 SelectPage(2);1541 PutWord(XIRCREG2_RBS, 0x2000);1542 }1543 1544 if (full)1545 set_addresses(dev);1546 1547 /* Hardware workaround:1548 * The receive byte pointer after reset is off by 1 so we need1549 * to move the offset pointer back to 0.1550 */1551 SelectPage(0);1552 PutWord(XIRCREG0_DO, 0x2000); /* change offset command, off=0 */1553 1554 /* setup MAC IMRs and clear status registers */1555 SelectPage(0x40); /* Bit 7 ... bit 0 */1556 PutByte(XIRCREG40_RMASK0, 0xff); /* ROK, RAB, rsv, RO, CRC, AE, PTL, MP */1557 PutByte(XIRCREG40_TMASK0, 0xff); /* TOK, TAB, SQE, LL, TU, JAB, EXC, CRS */1558 PutByte(XIRCREG40_TMASK1, 0xb0); /* rsv, rsv, PTD, EXT, rsv,rsv,rsv, rsv*/1559 PutByte(XIRCREG40_RXST0, 0x00); /* ROK, RAB, REN, RO, CRC, AE, PTL, MP */1560 PutByte(XIRCREG40_TXST0, 0x00); /* TOK, TAB, SQE, LL, TU, JAB, EXC, CRS */1561 PutByte(XIRCREG40_TXST1, 0x00); /* TEN, rsv, PTD, EXT, retry_counter:4 */1562 1563 if (full && local->mohawk && init_mii(dev)) {1564 if (dev->if_port == 4 || local->dingo || local->new_mii) {1565 netdev_info(dev, "MII selected\n");1566 SelectPage(2);1567 PutByte(XIRCREG2_MSR, GetByte(XIRCREG2_MSR) | 0x08);1568 msleep(20);1569 } else {1570 netdev_info(dev, "MII detected; using 10mbs\n");1571 SelectPage(0x42);1572 if (dev->if_port == 2) /* enable 10Base2 */1573 PutByte(XIRCREG42_SWC1, 0xC0);1574 else /* enable 10BaseT */1575 PutByte(XIRCREG42_SWC1, 0x80);1576 msleep(40); /* wait 40 msec to let it complete */1577 }1578 if (full_duplex)1579 PutByte(XIRCREG1_ECR, GetByte(XIRCREG1_ECR | FullDuplex));1580 } else { /* No MII */1581 SelectPage(0);1582 value = GetByte(XIRCREG_ESR); /* read the ESR */1583 dev->if_port = (value & MediaSelect) ? 1 : 2;1584 }1585 1586 /* configure the LEDs */1587 SelectPage(2);1588 if (dev->if_port == 1 || dev->if_port == 4) /* TP: Link and Activity */1589 PutByte(XIRCREG2_LED, 0x3b);1590 else /* Coax: Not-Collision and Activity */1591 PutByte(XIRCREG2_LED, 0x3a);1592 1593 if (local->dingo)1594 PutByte(0x0b, 0x04); /* 100 Mbit LED */1595 1596 /* enable receiver and put the mac online */1597 if (full) {1598 set_multicast_list(dev);1599 SelectPage(0x40);1600 PutByte(XIRCREG40_CMD0, EnableRecv | Online);1601 }1602 1603 /* setup Ethernet IMR and enable interrupts */1604 SelectPage(1);1605 PutByte(XIRCREG1_IMR0, 0xff);1606 udelay(1);1607 SelectPage(0);1608 PutByte(XIRCREG_CR, EnableIntr);1609 if (local->modem && !local->dingo) { /* do some magic */1610 if (!(GetByte(0x10) & 0x01))1611 PutByte(0x10, 0x11); /* unmask master-int bit */1612 }1613 1614 if (full)1615 netdev_info(dev, "media %s, silicon revision %d\n",1616 if_names[dev->if_port], local->silicon);1617 /* We should switch back to page 0 to avoid a bug in revision 01618 * where regs with offset below 8 can't be read after an access1619 * to the MAC registers */1620 SelectPage(0);1621}1622 1623/****************1624 * Initialize the Media-Independent-Interface1625 * Returns: True if we have a good MII1626 */1627static int1628init_mii(struct net_device *dev)1629{1630 struct local_info *local = netdev_priv(dev);1631 unsigned int ioaddr = dev->base_addr;1632 unsigned control, status, linkpartner;1633 int i;1634 1635 if (if_port == 4 || if_port == 1) { /* force 100BaseT or 10BaseT */1636 dev->if_port = if_port;1637 local->probe_port = 0;1638 return 1;1639 }1640 1641 status = mii_rd(ioaddr, 0, 1);1642 if ((status & 0xff00) != 0x7800)1643 return 0; /* No MII */1644 1645 local->new_mii = (mii_rd(ioaddr, 0, 2) != 0xffff);1646 1647 if (local->probe_port)1648 control = 0x1000; /* auto neg */1649 else if (dev->if_port == 4)1650 control = 0x2000; /* no auto neg, 100mbs mode */1651 else1652 control = 0x0000; /* no auto neg, 10mbs mode */1653 mii_wr(ioaddr, 0, 0, control, 16);1654 udelay(100);1655 control = mii_rd(ioaddr, 0, 0);1656 1657 if (control & 0x0400) {1658 netdev_notice(dev, "can't take PHY out of isolation mode\n");1659 local->probe_port = 0;1660 return 0;1661 }1662 1663 if (local->probe_port) {1664 /* according to the DP83840A specs the auto negotiation process1665 * may take up to 3.5 sec, so we use this also for our ML66921666 * Fixme: Better to use a timer here!1667 */1668 for (i=0; i < 35; i++) {1669 msleep(100); /* wait 100 msec */1670 status = mii_rd(ioaddr, 0, 1);1671 if ((status & 0x0020) && (status & 0x0004))1672 break;1673 }1674 1675 if (!(status & 0x0020)) {1676 netdev_info(dev, "autonegotiation failed; using 10mbs\n");1677 if (!local->new_mii) {1678 control = 0x0000;1679 mii_wr(ioaddr, 0, 0, control, 16);1680 udelay(100);1681 SelectPage(0);1682 dev->if_port = (GetByte(XIRCREG_ESR) & MediaSelect) ? 1 : 2;1683 }1684 } else {1685 linkpartner = mii_rd(ioaddr, 0, 5);1686 netdev_info(dev, "MII link partner: %04x\n", linkpartner);1687 if (linkpartner & 0x0080) {1688 dev->if_port = 4;1689 } else1690 dev->if_port = 1;1691 }1692 }1693 1694 return 1;1695}1696 1697static void1698do_powerdown(struct net_device *dev)1699{1700 1701 unsigned int ioaddr = dev->base_addr;1702 1703 pr_debug("do_powerdown(%p)\n", dev);1704 1705 SelectPage(4);1706 PutByte(XIRCREG4_GPR1, 0); /* clear bit 0: power down */1707 SelectPage(0);1708}1709 1710static int1711do_stop(struct net_device *dev)1712{1713 unsigned int ioaddr = dev->base_addr;1714 struct local_info *lp = netdev_priv(dev);1715 struct pcmcia_device *link = lp->p_dev;1716 1717 dev_dbg(&link->dev, "do_stop(%p)\n", dev);1718 1719 if (!link)1720 return -ENODEV;1721 1722 netif_stop_queue(dev);1723 1724 SelectPage(0);1725 PutByte(XIRCREG_CR, 0); /* disable interrupts */1726 SelectPage(0x01);1727 PutByte(XIRCREG1_IMR0, 0x00); /* forbid all ints */1728 SelectPage(4);1729 PutByte(XIRCREG4_GPR1, 0); /* clear bit 0: power down */1730 SelectPage(0);1731 1732 link->open--;1733 return 0;1734}1735 1736static const struct pcmcia_device_id xirc2ps_ids[] = {1737 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0089, 0x110a),1738 PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0138, 0x110a),1739 PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "CEM28", 0x2e3ee845, 0x0ea978ea),1740 PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "CEM33", 0x2e3ee845, 0x80609023),1741 PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "CEM56", 0x2e3ee845, 0xa650c32a),1742 PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "REM10", 0x2e3ee845, 0x76df1d29),1743 PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "XEM5600", 0x2e3ee845, 0xf1403719),1744 PCMCIA_PFC_DEVICE_PROD_ID12(0, "Xircom", "CreditCard Ethernet+Modem II", 0x2e3ee845, 0xeca401bf),1745 PCMCIA_DEVICE_MANF_CARD(0x01bf, 0x010a),1746 PCMCIA_DEVICE_PROD_ID13("Toshiba Information Systems", "TPCENET", 0x1b3b94fe, 0xf381c1a2),1747 PCMCIA_DEVICE_PROD_ID13("Xircom", "CE3-10/100", 0x2e3ee845, 0x0ec0ac37),1748 PCMCIA_DEVICE_PROD_ID13("Xircom", "PS-CE2-10", 0x2e3ee845, 0x947d9073),1749 PCMCIA_DEVICE_PROD_ID13("Xircom", "R2E-100BTX", 0x2e3ee845, 0x2464a6e3),1750 PCMCIA_DEVICE_PROD_ID13("Xircom", "RE-10", 0x2e3ee845, 0x3e08d609),1751 PCMCIA_DEVICE_PROD_ID13("Xircom", "XE2000", 0x2e3ee845, 0xf7188e46),1752 PCMCIA_DEVICE_PROD_ID12("Compaq", "Ethernet LAN Card", 0x54f7c49c, 0x9fd2f0a2),1753 PCMCIA_DEVICE_PROD_ID12("Compaq", "Netelligent 10/100 PC Card", 0x54f7c49c, 0xefe96769),1754 PCMCIA_DEVICE_PROD_ID12("Intel", "EtherExpress(TM) PRO/100 PC Card Mobile Adapter16", 0x816cc815, 0x174397db),1755 PCMCIA_DEVICE_PROD_ID12("Toshiba", "10/100 Ethernet PC Card", 0x44a09d9c, 0xb44deecf),1756 /* also matches CFE-10 cards! */1757 /* PCMCIA_DEVICE_MANF_CARD(0x0105, 0x010a), */1758 PCMCIA_DEVICE_NULL,1759};1760MODULE_DEVICE_TABLE(pcmcia, xirc2ps_ids);1761 1762 1763static struct pcmcia_driver xirc2ps_cs_driver = {1764 .owner = THIS_MODULE,1765 .name = "xirc2ps_cs",1766 .probe = xirc2ps_probe,1767 .remove = xirc2ps_detach,1768 .id_table = xirc2ps_ids,1769 .suspend = xirc2ps_suspend,1770 .resume = xirc2ps_resume,1771};1772module_pcmcia_driver(xirc2ps_cs_driver);1773 1774#ifndef MODULE1775static int __init setup_xirc2ps_cs(char *str)1776{1777 /* if_port, full_duplex, do_sound, lockup_hack1778 */1779 int ints[10] = { -1 };1780 1781 str = get_options(str, ARRAY_SIZE(ints), ints);1782 1783#define MAYBE_SET(X,Y) if (ints[0] >= Y && ints[Y] != -1) { X = ints[Y]; }1784 MAYBE_SET(if_port, 3);1785 MAYBE_SET(full_duplex, 4);1786 MAYBE_SET(do_sound, 5);1787 MAYBE_SET(lockup_hack, 6);1788#undef MAYBE_SET1789 1790 return 1;1791}1792 1793__setup("xirc2ps_cs=", setup_xirc2ps_cs);1794#endif1795