/* [xirc2ps_cs.c wk 03.11.99] (1.40 1999/11/18 00:06:03) * Xircom CreditCard Ethernet Adapter IIps driver * Xircom Realport 10/100 (RE-100) driver * * This driver supports various Xircom CreditCard Ethernet adapters * including the CE2, CE IIps, RE-10, CEM28, CEM33, CE33, CEM56, * CE3-100, CE3B, RE-100, REM10BT, and REM56G-100. * * 2000-09-24 <[email protected]> The Xircom CE3B-100 may not * autodetect the media properly. In this case use the * if_port=1 (for 10BaseT) or if_port=4 (for 100BaseT) options * to force the media type. * * Written originally by Werner Koch based on David Hinds' skeleton of the * PCMCIA driver. * * Copyright (c) 1997,1998 Werner Koch (dd9jn) * * This driver is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * It is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, see <http://www.gnu.org/licenses/>. * * * ALTERNATIVELY, this driver may be distributed under the terms of * the following license, in which case the provisions of this license * are required INSTEAD OF the GNU General Public License. (This clause * is necessary due to a potential bad interaction between the GPL and * the restrictions contained in a BSD-style copyright.) * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, and the entire permission notice in its entirety, * including the disclaimer of warranties. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote * products derived from this software without specific prior * written permission. * * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED * OF THE POSSIBILITY OF SUCH DAMAGE. */ #define pr_fmt(fmt) … #include <linux/module.h> #include <linux/kernel.h> #include <linux/init.h> #include <linux/ptrace.h> #include <linux/slab.h> #include <linux/string.h> #include <linux/timer.h> #include <linux/interrupt.h> #include <linux/in.h> #include <linux/delay.h> #include <linux/ethtool.h> #include <linux/netdevice.h> #include <linux/etherdevice.h> #include <linux/skbuff.h> #include <linux/if_arp.h> #include <linux/ioport.h> #include <linux/bitops.h> #include <linux/mii.h> #include <pcmcia/cistpl.h> #include <pcmcia/cisreg.h> #include <pcmcia/ciscode.h> #include <asm/io.h> #include <linux/uaccess.h> #ifndef MANFID_COMPAQ #define MANFID_COMPAQ … #define MANFID_COMPAQ2 … #endif #include <pcmcia/ds.h> /* Time in jiffies before concluding Tx hung */ #define TX_TIMEOUT … /**************** * Some constants used to access the hardware */ /* Register offsets and value constans */ #define XIRCREG_CR … enum xirc_cr { … }; #define XIRCREG_ESR … enum xirc_esr { … }; #define XIRCREG_PR … #define XIRCREG_EDP … #define XIRCREG_ISR … enum xirc_isr { … }; #define XIRCREG1_IMR0 … #define XIRCREG1_IMR1 … #define XIRCREG0_TSO … #define XIRCREG0_TRS … #define XIRCREG0_DO … #define XIRCREG0_RSR … enum xirc_rsr { … }; #define XIRCREG0_PTR … #define XIRCREG0_RBC … #define XIRCREG1_ECR … enum xirc_ecr { … }; #define XIRCREG2_RBS … #define XIRCREG2_LED … /* values for the leds: Bits 2-0 for led 1 * 0 disabled Bits 5-3 for led 2 * 1 collision * 2 noncollision * 3 link_detected * 4 incor_polarity * 5 jabber * 6 auto_assertion * 7 rx_tx_activity */ #define XIRCREG2_MSR … #define XIRCREG4_GPR0 … #define XIRCREG4_GPR1 … #define XIRCREG2_GPR2 … #define XIRCREG4_BOV … #define XIRCREG4_LMA … #define XIRCREG4_LMD … /* MAC register can only by accessed with 8 bit operations */ #define XIRCREG40_CMD0 … enum xirc_cmd { … }; #define XIRCREG5_RHSA0 … #define XIRCREG40_RXST0 … #define XIRCREG40_TXST0 … #define XIRCREG40_TXST1 … #define XIRCREG40_RMASK0 … #define XIRCREG40_TMASK0 … #define XIRCREG40_TMASK1 … #define XIRCREG42_SWC0 … #define XIRCREG42_SWC1 … #define XIRCREG42_BOC … #define XIRCREG44_TDR0 … #define XIRCREG44_TDR1 … #define XIRCREG44_RXBC_LO … #define XIRCREG44_RXBC_HI … #define XIRCREG45_REV … #define XIRCREG50_IA … static const char *if_names[] = …; /* card types */ #define XIR_UNKNOWN … #define XIR_CE … #define XIR_CE2 … #define XIR_CE3 … #define XIR_CEM … #define XIR_CEM2 … #define XIR_CEM3 … #define XIR_CEM33 … #define XIR_CEM56M … #define XIR_CEM56 … #define XIR_CM28 … #define XIR_CM33 … #define XIR_CM56 … #define XIR_CG … #define XIR_CBE … /*====================================================================*/ /* Module parameters */ MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …; #define INT_MODULE_PARM(n, v) … INT_MODULE_PARM(if_port, 0); INT_MODULE_PARM(full_duplex, 0); INT_MODULE_PARM(do_sound, 1); INT_MODULE_PARM(lockup_hack, 0); /* anti lockup hack */ /*====================================================================*/ /* We do not process more than these number of bytes during one * interrupt. (Of course we receive complete packets, so this is not * an exact value). * Something between 2000..22000; first value gives best interrupt latency, * the second enables the usage of the complete on-chip buffer. We use the * high value as the initial value. */ static unsigned maxrx_bytes = …; /* MII management prototypes */ static void mii_idle(unsigned int ioaddr); static void mii_putbit(unsigned int ioaddr, unsigned data); static int mii_getbit(unsigned int ioaddr); static void mii_wbits(unsigned int ioaddr, unsigned data, int len); static unsigned mii_rd(unsigned int ioaddr, u_char phyaddr, u_char phyreg); static void mii_wr(unsigned int ioaddr, u_char phyaddr, u_char phyreg, unsigned data, int len); static int has_ce2_string(struct pcmcia_device * link); static int xirc2ps_config(struct pcmcia_device * link); static void xirc2ps_release(struct pcmcia_device * link); static void xirc2ps_detach(struct pcmcia_device *p_dev); static irqreturn_t xirc2ps_interrupt(int irq, void *dev_id); struct local_info { … }; /**************** * Some more prototypes */ static netdev_tx_t do_start_xmit(struct sk_buff *skb, struct net_device *dev); static void xirc_tx_timeout(struct net_device *dev, unsigned int txqueue); static void xirc2ps_tx_timeout_task(struct work_struct *work); static void set_addresses(struct net_device *dev); static void set_multicast_list(struct net_device *dev); static int set_card_type(struct pcmcia_device *link); static int do_config(struct net_device *dev, struct ifmap *map); static int do_open(struct net_device *dev); static int do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); static const struct ethtool_ops netdev_ethtool_ops; static void hardreset(struct net_device *dev); static void do_reset(struct net_device *dev, int full); static int init_mii(struct net_device *dev); static void do_powerdown(struct net_device *dev); static int do_stop(struct net_device *dev); /*=============== Helper functions =========================*/ #define SelectPage(pgnr) … #define GetByte(reg) … #define GetWord(reg) … #define PutByte(reg,value) … #define PutWord(reg,value) … /*====== Functions used for debugging =================================*/ #if 0 /* reading regs may change system status */ static void PrintRegisters(struct net_device *dev) { unsigned int ioaddr = dev->base_addr; if (pc_debug > 1) { int i, page; printk(KERN_DEBUG pr_fmt("Register common: ")); for (i = 0; i < 8; i++) pr_cont(" %2.2x", GetByte(i)); pr_cont("\n"); for (page = 0; page <= 8; page++) { printk(KERN_DEBUG pr_fmt("Register page %2x: "), page); SelectPage(page); for (i = 8; i < 16; i++) pr_cont(" %2.2x", GetByte(i)); pr_cont("\n"); } for (page=0x40 ; page <= 0x5f; page++) { if (page == 0x43 || (page >= 0x46 && page <= 0x4f) || (page >= 0x51 && page <=0x5e)) continue; printk(KERN_DEBUG pr_fmt("Register page %2x: "), page); SelectPage(page); for (i = 8; i < 16; i++) pr_cont(" %2.2x", GetByte(i)); pr_cont("\n"); } } } #endif /* 0 */ /*============== MII Management functions ===============*/ /**************** * Turn around for read */ static void mii_idle(unsigned int ioaddr) { … } /**************** * Write a bit to MDI/O */ static void mii_putbit(unsigned int ioaddr, unsigned data) { … } /**************** * Get a bit from MDI/O */ static int mii_getbit(unsigned int ioaddr) { … } static void mii_wbits(unsigned int ioaddr, unsigned data, int len) { … } static unsigned mii_rd(unsigned int ioaddr, u_char phyaddr, u_char phyreg) { … } static void mii_wr(unsigned int ioaddr, u_char phyaddr, u_char phyreg, unsigned data, int len) { … } /*============= Main bulk of functions =========================*/ static const struct net_device_ops netdev_ops = …; static int xirc2ps_probe(struct pcmcia_device *link) { … } /* xirc2ps_attach */ static void xirc2ps_detach(struct pcmcia_device *link) { … } /* xirc2ps_detach */ /**************** * Detect the type of the card. s is the buffer with the data of tuple 0x20 * Returns: 0 := not supported * mediaid=11 and prodid=47 * Media-Id bits: * Ethernet 0x01 * Tokenring 0x02 * Arcnet 0x04 * Wireless 0x08 * Modem 0x10 * GSM only 0x20 * Prod-Id bits: * Pocket 0x10 * External 0x20 * Creditcard 0x40 * Cardbus 0x80 * */ static int set_card_type(struct pcmcia_device *link) { … } /**************** * There are some CE2 cards out which claim to be a CE card. * This function looks for a "CE2" in the 3rd version field. * Returns: true if this is a CE2 */ static int has_ce2_string(struct pcmcia_device * p_dev) { … } static int xirc2ps_config_modem(struct pcmcia_device *p_dev, void *priv_data) { … } static int xirc2ps_config_check(struct pcmcia_device *p_dev, void *priv_data) { … } static int pcmcia_get_mac_ce(struct pcmcia_device *p_dev, tuple_t *tuple, void *priv) { struct net_device *dev = priv; if (tuple->TupleDataLen != 13) return -EINVAL; if ((tuple->TupleData[0] != 2) || (tuple->TupleData[1] != 1) || (tuple->TupleData[2] != 6)) return -EINVAL; /* another try (James Lehmer's CE2 version 4.1)*/ dev_addr_mod(dev, 2, &tuple->TupleData[2], 4); return 0; }; static int xirc2ps_config(struct pcmcia_device * link) { … } /* xirc2ps_config */ static void xirc2ps_release(struct pcmcia_device *link) { … } /* xirc2ps_release */ /*====================================================================*/ static int xirc2ps_suspend(struct pcmcia_device *link) { … } static int xirc2ps_resume(struct pcmcia_device *link) { … } /*====================================================================*/ /**************** * This is the Interrupt service route. */ static irqreturn_t xirc2ps_interrupt(int irq, void *dev_id) { … } /* xirc2ps_interrupt */ /*====================================================================*/ static void xirc2ps_tx_timeout_task(struct work_struct *work) { … } static void xirc_tx_timeout(struct net_device *dev, unsigned int txqueue) { … } static netdev_tx_t do_start_xmit(struct sk_buff *skb, struct net_device *dev) { … } struct set_address_info { … }; static void set_address(struct set_address_info *sa_info, const char *addr) { … } /**************** * Set all addresses: This first one is the individual address, * the next 9 addresses are taken from the multicast list and * the rest is filled with the individual address. */ static void set_addresses(struct net_device *dev) { … } /**************** * Set or clear the multicast filter for this adaptor. * We can filter up to 9 addresses, if more are requested we set * multicast promiscuous mode. */ static void set_multicast_list(struct net_device *dev) { … } static int do_config(struct net_device *dev, struct ifmap *map) { … } /**************** * Open the driver */ static int do_open(struct net_device *dev) { … } static void netdev_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) { … } static const struct ethtool_ops netdev_ethtool_ops = …; static int do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) { … } static void hardreset(struct net_device *dev) { … } static void do_reset(struct net_device *dev, int full) { … } /**************** * Initialize the Media-Independent-Interface * Returns: True if we have a good MII */ static int init_mii(struct net_device *dev) { … } static void do_powerdown(struct net_device *dev) { … } static int do_stop(struct net_device *dev) { … } static const struct pcmcia_device_id xirc2ps_ids[] = …; MODULE_DEVICE_TABLE(pcmcia, xirc2ps_ids); static struct pcmcia_driver xirc2ps_cs_driver = …; module_pcmcia_driver(…); #ifndef MODULE static int __init setup_xirc2ps_cs(char *str) { … } __setup(…); #endif
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