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linux/drivers/net/ethernet/xircom/xirc2ps_cs.c
Linus Torvalds 73287a43cc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 
Pull networking updates from David Miller:
 "Highlights (1721 non-merge commits, this has to be a record of some
  sort):

   1) Add 'random' mode to team driver, from Jiri Pirko and Eric
      Dumazet.

   2) Make it so that any driver that supports configuration of multiple
      MAC addresses can provide the forwarding database add and del
      calls by providing a default implementation and hooking that up if
      the driver doesn't have an explicit set of handlers.  From Vlad
      Yasevich.

   3) Support GSO segmentation over tunnels and other encapsulating
      devices such as VXLAN, from Pravin B Shelar.

   4) Support L2 GRE tunnels in the flow dissector, from Michael Dalton.

   5) Implement Tail Loss Probe (TLP) detection in TCP, from Nandita
      Dukkipati.

   6) In the PHY layer, allow supporting wake-on-lan in situations where
      the PHY registers have to be written for it to be configured.

      Use it to support wake-on-lan in mv643xx_eth.

      From Michael Stapelberg.

   7) Significantly improve firewire IPV6 support, from YOSHIFUJI
      Hideaki.

   8) Allow multiple packets to be sent in a single transmission using
      network coding in batman-adv, from Martin Hundebøll.

   9) Add support for T5 cxgb4 chips, from Santosh Rastapur.

  10) Generalize the VXLAN forwarding tables so that there is more
      flexibility in configurating various aspects of the endpoints.
      From David Stevens.

  11) Support RSS and TSO in hardware over GRE tunnels in bxn2x driver,
      from Dmitry Kravkov.

  12) Zero copy support in nfnelink_queue, from Eric Dumazet and Pablo
      Neira Ayuso.

  13) Start adding networking selftests.

  14) In situations of overload on the same AF_PACKET fanout socket, or
      per-cpu packet receive queue, minimize drop by distributing the
      load to other cpus/fanouts.  From Willem de Bruijn and Eric
      Dumazet.

  15) Add support for new payload offset BPF instruction, from Daniel
      Borkmann.

  16) Convert several drivers over to mdoule_platform_driver(), from
      Sachin Kamat.

  17) Provide a minimal BPF JIT image disassembler userspace tool, from
      Daniel Borkmann.

  18) Rewrite F-RTO implementation in TCP to match the final
      specification of it in RFC4138 and RFC5682.  From Yuchung Cheng.

  19) Provide netlink socket diag of netlink sockets ("Yo dawg, I hear
      you like netlink, so I implemented netlink dumping of netlink
      sockets.") From Andrey Vagin.

  20) Remove ugly passing of rtnetlink attributes into rtnl_doit
      functions, from Thomas Graf.

  21) Allow userspace to be able to see if a configuration change occurs
      in the middle of an address or device list dump, from Nicolas
      Dichtel.

  22) Support RFC3168 ECN protection for ipv6 fragments, from Hannes
      Frederic Sowa.

  23) Increase accuracy of packet length used by packet scheduler, from
      Jason Wang.

  24) Beginning set of changes to make ipv4/ipv6 fragment handling more
      scalable and less susceptible to overload and locking contention,
      from Jesper Dangaard Brouer.

  25) Get rid of using non-type-safe NLMSG_* macros and use nlmsg_*()
      instead.  From Hong Zhiguo.

  26) Optimize route usage in IPVS by avoiding reference counting where
      possible, from Julian Anastasov.

  27) Convert IPVS schedulers to RCU, also from Julian Anastasov.

  28) Support cpu fanouts in xt_NFQUEUE netfilter target, from Holger
      Eitzenberger.

  29) Network namespace support for nf_log, ebt_log, xt_LOG, ipt_ULOG,
      nfnetlink_log, and nfnetlink_queue.  From Gao feng.

  30) Implement RFC3168 ECN protection, from Hannes Frederic Sowa.

  31) Support several new r8169 chips, from Hayes Wang.

  32) Support tokenized interface identifiers in ipv6, from Daniel
      Borkmann.

  33) Use usbnet_link_change() helper in USB net driver, from Ming Lei.

  34) Add 802.1ad vlan offload support, from Patrick McHardy.

  35) Support mmap() based netlink communication, also from Patrick
      McHardy.

  36) Support HW timestamping in mlx4 driver, from Amir Vadai.

  37) Rationalize AF_PACKET packet timestamping when transmitting, from
      Willem de Bruijn and Daniel Borkmann.

  38) Bring parity to what's provided by /proc/net/packet socket dumping
      and the info provided by netlink socket dumping of AF_PACKET
      sockets.  From Nicolas Dichtel.

  39) Fix peeking beyond zero sized SKBs in AF_UNIX, from Benjamin
      Poirier"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1722 commits)
  filter: fix va_list build error
  af_unix: fix a fatal race with bit fields
  bnx2x: Prevent memory leak when cnic is absent
  bnx2x: correct reading of speed capabilities
  net: sctp: attribute printl with __printf for gcc fmt checks
  netlink: kconfig: move mmap i/o into netlink kconfig
  netpoll: convert mutex into a semaphore
  netlink: Fix skb ref counting.
  net_sched: act_ipt forward compat with xtables
  mlx4_en: fix a build error on 32bit arches
  Revert "bnx2x: allow nvram test to run when device is down"
  bridge: avoid OOPS if root port not found
  drivers: net: cpsw: fix kernel warn on cpsw irq enable
  sh_eth: use random MAC address if no valid one supplied
  3c509.c: call SET_NETDEV_DEV for all device types (ISA/ISAPnP/EISA)
  tg3: fix to append hardware time stamping flags
  unix/stream: fix peeking with an offset larger than data in queue
  unix/dgram: fix peeking with an offset larger than data in queue
  unix/dgram: peek beyond 0-sized skbs
  openvswitch: Remove unneeded ovs_netdev_get_ifindex()
  ...
2013-05-01 14:08:52 -07:00

1800 lines
52 KiB
C
Raw Blame History

/* [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 <psheer@icon.co.za> 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, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*
*
* 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) KBUILD_MODNAME ": " 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 <asm/uaccess.h>
#ifndef MANFID_COMPAQ
#define MANFID_COMPAQ 0x0138
#define MANFID_COMPAQ2 0x0183 /* is this correct? */
#endif
#include <pcmcia/ds.h>
/* Time in jiffies before concluding Tx hung */
#define TX_TIMEOUT ((400*HZ)/1000)
/****************
* Some constants used to access the hardware
*/
/* Register offsets and value constans */
#define XIRCREG_CR 0 /* Command register (wr) */
enum xirc_cr {
TransmitPacket = 0x01,
SoftReset = 0x02,
EnableIntr = 0x04,
ForceIntr = 0x08,
ClearTxFIFO = 0x10,
ClearRxOvrun = 0x20,
RestartTx = 0x40
};
#define XIRCREG_ESR 0 /* Ethernet status register (rd) */
enum xirc_esr {
FullPktRcvd = 0x01, /* full packet in receive buffer */
PktRejected = 0x04, /* a packet has been rejected */
TxPktPend = 0x08, /* TX Packet Pending */
IncorPolarity = 0x10,
MediaSelect = 0x20 /* set if TP, clear if AUI */
};
#define XIRCREG_PR 1 /* Page Register select */
#define XIRCREG_EDP 4 /* Ethernet Data Port Register */
#define XIRCREG_ISR 6 /* Ethernet Interrupt Status Register */
enum xirc_isr {
TxBufOvr = 0x01, /* TX Buffer Overflow */
PktTxed = 0x02, /* Packet Transmitted */
MACIntr = 0x04, /* MAC Interrupt occurred */
TxResGrant = 0x08, /* Tx Reservation Granted */
RxFullPkt = 0x20, /* Rx Full Packet */
RxPktRej = 0x40, /* Rx Packet Rejected */
ForcedIntr= 0x80 /* Forced Interrupt */
};
#define XIRCREG1_IMR0 12 /* Ethernet Interrupt Mask Register (on page 1)*/
#define XIRCREG1_IMR1 13
#define XIRCREG0_TSO 8 /* Transmit Space Open Register (on page 0)*/
#define XIRCREG0_TRS 10 /* Transmit reservation Size Register (page 0)*/
#define XIRCREG0_DO 12 /* Data Offset Register (page 0) (wr) */
#define XIRCREG0_RSR 12 /* Receive Status Register (page 0) (rd) */
enum xirc_rsr {
PhyPkt = 0x01, /* set:physical packet, clear: multicast packet */
BrdcstPkt = 0x02, /* set if it is a broadcast packet */
PktTooLong = 0x04, /* set if packet length > 1518 */
AlignErr = 0x10, /* incorrect CRC and last octet not complete */
CRCErr = 0x20, /* incorrect CRC and last octet is complete */
PktRxOk = 0x80 /* received ok */
};
#define XIRCREG0_PTR 13 /* packets transmitted register (rd) */
#define XIRCREG0_RBC 14 /* receive byte count regsister (rd) */
#define XIRCREG1_ECR 14 /* ethernet configurationn register */
enum xirc_ecr {
FullDuplex = 0x04, /* enable full duplex mode */
LongTPMode = 0x08, /* adjust for longer lengths of TP cable */
DisablePolCor = 0x10,/* disable auto polarity correction */
DisableLinkPulse = 0x20, /* disable link pulse generation */
DisableAutoTx = 0x40, /* disable auto-transmit */
};
#define XIRCREG2_RBS 8 /* receive buffer start register */
#define XIRCREG2_LED 10 /* LED Configuration register */
/* 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 12 /* Mohawk specific register */
#define XIRCREG4_GPR0 8 /* General Purpose Register 0 */
#define XIRCREG4_GPR1 9 /* General Purpose Register 1 */
#define XIRCREG2_GPR2 13 /* General Purpose Register 2 (page2!)*/
#define XIRCREG4_BOV 10 /* Bonding Version Register */
#define XIRCREG4_LMA 12 /* Local Memory Address Register */
#define XIRCREG4_LMD 14 /* Local Memory Data Port */
/* MAC register can only by accessed with 8 bit operations */
#define XIRCREG40_CMD0 8 /* Command Register (wr) */
enum xirc_cmd { /* Commands */
Transmit = 0x01,
EnableRecv = 0x04,
DisableRecv = 0x08,
Abort = 0x10,
Online = 0x20,
IntrAck = 0x40,
Offline = 0x80
};
#define XIRCREG5_RHSA0 10 /* Rx Host Start Address */
#define XIRCREG40_RXST0 9 /* Receive Status Register */
#define XIRCREG40_TXST0 11 /* Transmit Status Register 0 */
#define XIRCREG40_TXST1 12 /* Transmit Status Register 10 */
#define XIRCREG40_RMASK0 13 /* Receive Mask Register */
#define XIRCREG40_TMASK0 14 /* Transmit Mask Register 0 */
#define XIRCREG40_TMASK1 15 /* Transmit Mask Register 0 */
#define XIRCREG42_SWC0 8 /* Software Configuration 0 */
#define XIRCREG42_SWC1 9 /* Software Configuration 1 */
#define XIRCREG42_BOC 10 /* Back-Off Configuration */
#define XIRCREG44_TDR0 8 /* Time Domain Reflectometry 0 */
#define XIRCREG44_TDR1 9 /* Time Domain Reflectometry 1 */
#define XIRCREG44_RXBC_LO 10 /* Rx Byte Count 0 (rd) */
#define XIRCREG44_RXBC_HI 11 /* Rx Byte Count 1 (rd) */
#define XIRCREG45_REV 15 /* Revision Register (rd) */
#define XIRCREG50_IA 8 /* Individual Address (8-13) */
static const char *if_names[] = { "Auto", "10BaseT", "10Base2", "AUI", "100BaseT" };
/* card types */
#define XIR_UNKNOWN 0 /* unknown: not supported */
#define XIR_CE 1 /* (prodid 1) different hardware: not supported */
#define XIR_CE2 2 /* (prodid 2) */
#define XIR_CE3 3 /* (prodid 3) */
#define XIR_CEM 4 /* (prodid 1) different hardware: not supported */
#define XIR_CEM2 5 /* (prodid 2) */
#define XIR_CEM3 6 /* (prodid 3) */
#define XIR_CEM33 7 /* (prodid 4) */
#define XIR_CEM56M 8 /* (prodid 5) */
#define XIR_CEM56 9 /* (prodid 6) */
#define XIR_CM28 10 /* (prodid 3) modem only: not supported here */
#define XIR_CM33 11 /* (prodid 4) modem only: not supported here */
#define XIR_CM56 12 /* (prodid 5) modem only: not supported here */
#define XIR_CG 13 /* (prodid 1) GSM modem only: not supported */
#define XIR_CBE 14 /* (prodid 1) cardbus ethernet: not supported */
/*====================================================================*/
/* Module parameters */
MODULE_DESCRIPTION("Xircom PCMCIA ethernet driver");
MODULE_LICENSE("Dual MPL/GPL");
#define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0)
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 = 22000;
/* 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);
typedef struct local_info_t {
struct net_device *dev;
struct pcmcia_device *p_dev;
int card_type;
int probe_port;
int silicon; /* silicon revision. 0=old CE2, 1=Scipper, 4=Mohawk */
int mohawk; /* a CE3 type card */
int dingo; /* a CEM56 type card */
int new_mii; /* has full 10baseT/100baseT MII */
int modem; /* is a multi function card (i.e with a modem) */
void __iomem *dingo_ccr; /* only used for CEM56 cards */
unsigned last_ptr_value; /* last packets transmitted value */
const char *manf_str;
struct work_struct tx_timeout_task;
} local_info_t;
/****************
* 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);
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) outb((pgnr), ioaddr + XIRCREG_PR)
#define GetByte(reg) ((unsigned)inb(ioaddr + (reg)))
#define GetWord(reg) ((unsigned)inw(ioaddr + (reg)))
#define PutByte(reg,value) outb((value), ioaddr+(reg))
#define PutWord(reg,value) outw((value), ioaddr+(reg))
/*====== 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)
{
PutByte(XIRCREG2_GPR2, 0x04|0); /* drive MDCK low */
udelay(1);
PutByte(XIRCREG2_GPR2, 0x04|1); /* and drive MDCK high */
udelay(1);
}
/****************
* Write a bit to MDI/O
*/
static void
mii_putbit(unsigned int ioaddr, unsigned data)
{
#if 1
if (data) {
PutByte(XIRCREG2_GPR2, 0x0c|2|0); /* set MDIO */
udelay(1);
PutByte(XIRCREG2_GPR2, 0x0c|2|1); /* and drive MDCK high */
udelay(1);
} else {
PutByte(XIRCREG2_GPR2, 0x0c|0|0); /* clear MDIO */
udelay(1);
PutByte(XIRCREG2_GPR2, 0x0c|0|1); /* and drive MDCK high */
udelay(1);
}
#else
if (data) {
PutWord(XIRCREG2_GPR2-1, 0x0e0e);
udelay(1);
PutWord(XIRCREG2_GPR2-1, 0x0f0f);
udelay(1);
} else {
PutWord(XIRCREG2_GPR2-1, 0x0c0c);
udelay(1);
PutWord(XIRCREG2_GPR2-1, 0x0d0d);
udelay(1);
}
#endif
}
/****************
* Get a bit from MDI/O
*/
static int
mii_getbit(unsigned int ioaddr)
{
unsigned d;
PutByte(XIRCREG2_GPR2, 4|0); /* drive MDCK low */
udelay(1);
d = GetByte(XIRCREG2_GPR2); /* read MDIO */
PutByte(XIRCREG2_GPR2, 4|1); /* drive MDCK high again */
udelay(1);
return d & 0x20; /* read MDIO */
}
static void
mii_wbits(unsigned int ioaddr, unsigned data, int len)
{
unsigned m = 1 << (len-1);
for (; m; m >>= 1)
mii_putbit(ioaddr, data & m);
}
static unsigned
mii_rd(unsigned int ioaddr, u_char phyaddr, u_char phyreg)
{
int i;
unsigned data=0, m;
SelectPage(2);
for (i=0; i < 32; i++) /* 32 bit preamble */
mii_putbit(ioaddr, 1);
mii_wbits(ioaddr, 0x06, 4); /* Start and opcode for read */
mii_wbits(ioaddr, phyaddr, 5); /* PHY address to be accessed */
mii_wbits(ioaddr, phyreg, 5); /* PHY register to read */
mii_idle(ioaddr); /* turn around */
mii_getbit(ioaddr);
for (m = 1<<15; m; m >>= 1)
if (mii_getbit(ioaddr))
data |= m;
mii_idle(ioaddr);
return data;
}
static void
mii_wr(unsigned int ioaddr, u_char phyaddr, u_char phyreg, unsigned data,
int len)
{
int i;
SelectPage(2);
for (i=0; i < 32; i++) /* 32 bit preamble */
mii_putbit(ioaddr, 1);
mii_wbits(ioaddr, 0x05, 4); /* Start and opcode for write */
mii_wbits(ioaddr, phyaddr, 5); /* PHY address to be accessed */
mii_wbits(ioaddr, phyreg, 5); /* PHY Register to write */
mii_putbit(ioaddr, 1); /* turn around */
mii_putbit(ioaddr, 0);
mii_wbits(ioaddr, data, len); /* And write the data */
mii_idle(ioaddr);
}
/*============= Main bulk of functions =========================*/
static const struct net_device_ops netdev_ops = {
.ndo_open = do_open,
.ndo_stop = do_stop,
.ndo_start_xmit = do_start_xmit,
.ndo_tx_timeout = xirc_tx_timeout,
.ndo_set_config = do_config,
.ndo_do_ioctl = do_ioctl,
.ndo_set_rx_mode = set_multicast_list,
.ndo_change_mtu = eth_change_mtu,
.ndo_set_mac_address = eth_mac_addr,
.ndo_validate_addr = eth_validate_addr,
};
static int
xirc2ps_probe(struct pcmcia_device *link)
{
struct net_device *dev;
local_info_t *local;
dev_dbg(&link->dev, "attach()\n");
/* Allocate the device structure */
dev = alloc_etherdev(sizeof(local_info_t));
if (!dev)
return -ENOMEM;
local = netdev_priv(dev);
local->dev = dev;
local->p_dev = link;
link->priv = dev;
/* General socket configuration */
link->config_index = 1;
/* Fill in card specific entries */
dev->netdev_ops = &netdev_ops;
dev->ethtool_ops = &netdev_ethtool_ops;
dev->watchdog_timeo = TX_TIMEOUT;
INIT_WORK(&local->tx_timeout_task, xirc2ps_tx_timeout_task);
return xirc2ps_config(link);
} /* xirc2ps_attach */
static void
xirc2ps_detach(struct pcmcia_device *link)
{
struct net_device *dev = link->priv;
dev_dbg(&link->dev, "detach\n");
unregister_netdev(dev);
xirc2ps_release(link);
free_netdev(dev);
} /* 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)
{
struct net_device *dev = link->priv;
local_info_t *local = netdev_priv(dev);
u8 *buf;
unsigned int cisrev, mediaid, prodid;
size_t len;
len = pcmcia_get_tuple(link, CISTPL_MANFID, &buf);
if (len < 5) {
dev_err(&link->dev, "invalid CIS -- sorry\n");
return 0;
}
cisrev = buf[2];
mediaid = buf[3];
prodid = buf[4];
dev_dbg(&link->dev, "cisrev=%02x mediaid=%02x prodid=%02x\n",
cisrev, mediaid, prodid);
local->mohawk = 0;
local->dingo = 0;
local->modem = 0;
local->card_type = XIR_UNKNOWN;
if (!(prodid & 0x40)) {
pr_notice("Oops: Not a creditcard\n");
return 0;
}
if (!(mediaid & 0x01)) {
pr_notice("Not an Ethernet card\n");
return 0;
}
if (mediaid & 0x10) {
local->modem = 1;
switch(prodid & 15) {
case 1: local->card_type = XIR_CEM ; break;
case 2: local->card_type = XIR_CEM2 ; break;
case 3: local->card_type = XIR_CEM3 ; break;
case 4: local->card_type = XIR_CEM33 ; break;
case 5: local->card_type = XIR_CEM56M;
local->mohawk = 1;
break;
case 6:
case 7: /* 7 is the RealPort 10/56 */
local->card_type = XIR_CEM56 ;
local->mohawk = 1;
local->dingo = 1;
break;
}
} else {
switch(prodid & 15) {
case 1: local->card_type = has_ce2_string(link)? XIR_CE2 : XIR_CE ;
break;
case 2: local->card_type = XIR_CE2; break;
case 3: local->card_type = XIR_CE3;
local->mohawk = 1;
break;
}
}
if (local->card_type == XIR_CE || local->card_type == XIR_CEM) {
pr_notice("Sorry, this is an old CE card\n");
return 0;
}
if (local->card_type == XIR_UNKNOWN)
pr_notice("unknown card (mediaid=%02x prodid=%02x)\n", mediaid, prodid);
return 1;
}
/****************
* 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)
{
if (p_dev->prod_id[2] && strstr(p_dev->prod_id[2], "CE2"))
return 1;
return 0;
}
static int
xirc2ps_config_modem(struct pcmcia_device *p_dev, void *priv_data)
{
unsigned int ioaddr;
if ((p_dev->resource[0]->start & 0xf) == 8)
return -ENODEV;
p_dev->resource[0]->end = 16;
p_dev->resource[1]->end = 8;
p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_16;
p_dev->resource[1]->flags &= ~IO_DATA_PATH_WIDTH;
p_dev->resource[1]->flags |= IO_DATA_PATH_WIDTH_8;
p_dev->io_lines = 10;
p_dev->resource[1]->start = p_dev->resource[0]->start;
for (ioaddr = 0x300; ioaddr < 0x400; ioaddr += 0x10) {
p_dev->resource[0]->start = ioaddr;
if (!pcmcia_request_io(p_dev))
return 0;
}
return -ENODEV;
}
static int
xirc2ps_config_check(struct pcmcia_device *p_dev, void *priv_data)
{
int *pass = priv_data;
resource_size_t tmp = p_dev->resource[1]->start;
tmp += (*pass ? (p_dev->config_index & 0x20 ? -24 : 8)
: (p_dev->config_index & 0x20 ? 8 : -24));
if ((p_dev->resource[0]->start & 0xf) == 8)
return -ENODEV;
p_dev->resource[0]->end = 18;
p_dev->resource[1]->end = 8;
p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_16;
p_dev->resource[1]->flags &= ~IO_DATA_PATH_WIDTH;
p_dev->resource[1]->flags |= IO_DATA_PATH_WIDTH_8;
p_dev->io_lines = 10;
p_dev->resource[1]->start = p_dev->resource[0]->start;
p_dev->resource[0]->start = tmp;
return pcmcia_request_io(p_dev);
}
static int pcmcia_get_mac_ce(struct pcmcia_device *p_dev,
tuple_t *tuple,
void *priv)
{
struct net_device *dev = priv;
int i;
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)*/
for (i = 2; i < 6; i++)
dev->dev_addr[i] = tuple->TupleData[i+2];
return 0;
};
static int
xirc2ps_config(struct pcmcia_device * link)
{
struct net_device *dev = link->priv;
local_info_t *local = netdev_priv(dev);
unsigned int ioaddr;
int err;
u8 *buf;
size_t len;
local->dingo_ccr = NULL;
dev_dbg(&link->dev, "config\n");
/* Is this a valid card */
if (link->has_manf_id == 0) {
pr_notice("manfid not found in CIS\n");
goto failure;
}
switch (link->manf_id) {
case MANFID_XIRCOM:
local->manf_str = "Xircom";
break;
case MANFID_ACCTON:
local->manf_str = "Accton";
break;
case MANFID_COMPAQ:
case MANFID_COMPAQ2:
local->manf_str = "Compaq";
break;
case MANFID_INTEL:
local->manf_str = "Intel";
break;
case MANFID_TOSHIBA:
local->manf_str = "Toshiba";
break;
default:
pr_notice("Unknown Card Manufacturer ID: 0x%04x\n",
(unsigned)link->manf_id);
goto failure;
}
dev_dbg(&link->dev, "found %s card\n", local->manf_str);
if (!set_card_type(link)) {
pr_notice("this card is not supported\n");
goto failure;
}
/* get the ethernet address from the CIS */
err = pcmcia_get_mac_from_cis(link, dev);
/* not found: try to get the node-id from tuple 0x89 */
if (err) {
len = pcmcia_get_tuple(link, 0x89, &buf);
/* data layout looks like tuple 0x22 */
if (buf && len == 8) {
if (*buf == CISTPL_FUNCE_LAN_NODE_ID) {
int i;
for (i = 2; i < 6; i++)
dev->dev_addr[i] = buf[i+2];
} else
err = -1;
}
kfree(buf);
}
if (err)
err = pcmcia_loop_tuple(link, CISTPL_FUNCE, pcmcia_get_mac_ce, dev);
if (err) {
pr_notice("node-id not found in CIS\n");
goto failure;
}
if (local->modem) {
int pass;
link->config_flags |= CONF_AUTO_SET_IO;
if (local->dingo) {
/* Take the Modem IO port from the CIS and scan for a free
* Ethernet port */
if (!pcmcia_loop_config(link, xirc2ps_config_modem, NULL))
goto port_found;
} else {
/* We do 2 passes here: The first one uses the regular mapping and
* the second tries again, thereby considering that the 32 ports are
* mirrored every 32 bytes. Actually we use a mirrored port for
* the Mako if (on the first pass) the COR bit 5 is set.
*/
for (pass=0; pass < 2; pass++)
if (!pcmcia_loop_config(link, xirc2ps_config_check,
&pass))
goto port_found;
/* if special option:
* try to configure as Ethernet only.
* .... */
}
pr_notice("no ports available\n");
} else {
link->io_lines = 10;
link->resource[0]->end = 16;
link->resource[0]->flags |= IO_DATA_PATH_WIDTH_16;
for (ioaddr = 0x300; ioaddr < 0x400; ioaddr += 0x10) {
link->resource[0]->start = ioaddr;
if (!(err = pcmcia_request_io(link)))
goto port_found;
}
link->resource[0]->start = 0; /* let CS decide */
if ((err = pcmcia_request_io(link)))
goto config_error;
}
port_found:
if (err)
goto config_error;
/****************
* Now allocate an interrupt line. Note that this does not
* actually assign a handler to the interrupt.
*/
if ((err=pcmcia_request_irq(link, xirc2ps_interrupt)))
goto config_error;
link->config_flags |= CONF_ENABLE_IRQ;
if (do_sound)
link->config_flags |= CONF_ENABLE_SPKR;
if ((err = pcmcia_enable_device(link)))
goto config_error;
if (local->dingo) {
/* Reset the modem's BAR to the correct value
* This is necessary because in the RequestConfiguration call,
* the base address of the ethernet port (BasePort1) is written
* to the BAR registers of the modem.
*/
err = pcmcia_write_config_byte(link, CISREG_IOBASE_0, (u8)
link->resource[1]->start & 0xff);
if (err)
goto config_error;
err = pcmcia_write_config_byte(link, CISREG_IOBASE_1,
(link->resource[1]->start >> 8) & 0xff);
if (err)
goto config_error;
/* There is no config entry for the Ethernet part which
* is at 0x0800. So we allocate a window into the attribute
* memory and write direct to the CIS registers
*/
link->resource[2]->flags = WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_AM |
WIN_ENABLE;
link->resource[2]->start = link->resource[2]->end = 0;
if ((err = pcmcia_request_window(link, link->resource[2], 0)))
goto config_error;
local->dingo_ccr = ioremap(link->resource[2]->start, 0x1000) + 0x0800;
if ((err = pcmcia_map_mem_page(link, link->resource[2], 0)))
goto config_error;
/* Setup the CCRs; there are no infos in the CIS about the Ethernet
* part.
*/
writeb(0x47, local->dingo_ccr + CISREG_COR);
ioaddr = link->resource[0]->start;
writeb(ioaddr & 0xff , local->dingo_ccr + CISREG_IOBASE_0);
writeb((ioaddr >> 8)&0xff , local->dingo_ccr + CISREG_IOBASE_1);
#if 0
{
u_char tmp;
pr_info("ECOR:");
for (i=0; i < 7; i++) {
tmp = readb(local->dingo_ccr + i*2);
pr_cont(" %02x", tmp);
}
pr_cont("\n");
pr_info("DCOR:");
for (i=0; i < 4; i++) {
tmp = readb(local->dingo_ccr + 0x20 + i*2);
pr_cont(" %02x", tmp);
}
pr_cont("\n");
pr_info("SCOR:");
for (i=0; i < 10; i++) {
tmp = readb(local->dingo_ccr + 0x40 + i*2);
pr_cont(" %02x", tmp);
}
pr_cont("\n");
}
#endif
writeb(0x01, local->dingo_ccr + 0x20);
writeb(0x0c, local->dingo_ccr + 0x22);
writeb(0x00, local->dingo_ccr + 0x24);
writeb(0x00, local->dingo_ccr + 0x26);
writeb(0x00, local->dingo_ccr + 0x28);
}
/* The if_port symbol can be set when the module is loaded */
local->probe_port=0;
if (!if_port) {
local->probe_port = dev->if_port = 1;
} else if ((if_port >= 1 && if_port <= 2) ||
(local->mohawk && if_port==4))
dev->if_port = if_port;
else
pr_notice("invalid if_port requested\n");
/* we can now register the device with the net subsystem */
dev->irq = link->irq;
dev->base_addr = link->resource[0]->start;
if (local->dingo)
do_reset(dev, 1); /* a kludge to make the cem56 work */
SET_NETDEV_DEV(dev, &link->dev);
if ((err=register_netdev(dev))) {
pr_notice("register_netdev() failed\n");
goto config_error;
}
/* give some infos about the hardware */
netdev_info(dev, "%s: port %#3lx, irq %d, hwaddr %pM\n",
local->manf_str, (u_long)dev->base_addr, (int)dev->irq,
dev->dev_addr);
return 0;
config_error:
xirc2ps_release(link);
return -ENODEV;
failure:
return -ENODEV;
} /* xirc2ps_config */
static void
xirc2ps_release(struct pcmcia_device *link)
{
dev_dbg(&link->dev, "release\n");
if (link->resource[2]->end) {
struct net_device *dev = link->priv;
local_info_t *local = netdev_priv(dev);
if (local->dingo)
iounmap(local->dingo_ccr - 0x0800);
}
pcmcia_disable_device(link);
} /* xirc2ps_release */
/*====================================================================*/
static int xirc2ps_suspend(struct pcmcia_device *link)
{
struct net_device *dev = link->priv;
if (link->open) {
netif_device_detach(dev);
do_powerdown(dev);
}
return 0;
}
static int xirc2ps_resume(struct pcmcia_device *link)
{
struct net_device *dev = link->priv;
if (link->open) {
do_reset(dev,1);
netif_device_attach(dev);
}
return 0;
}
/*====================================================================*/
/****************
* This is the Interrupt service route.
*/
static irqreturn_t
xirc2ps_interrupt(int irq, void *dev_id)
{
struct net_device *dev = (struct net_device *)dev_id;
local_info_t *lp = netdev_priv(dev);
unsigned int ioaddr;
u_char saved_page;
unsigned bytes_rcvd;
unsigned int_status, eth_status, rx_status, tx_status;
unsigned rsr, pktlen;
ulong start_ticks = jiffies; /* fixme: jiffies rollover every 497 days
* is this something to worry about?
* -- on a laptop?
*/
if (!netif_device_present(dev))
return IRQ_HANDLED;
ioaddr = dev->base_addr;
if (lp->mohawk) { /* must disable the interrupt */
PutByte(XIRCREG_CR, 0);
}
pr_debug("%s: interrupt %d at %#x.\n", dev->name, irq, ioaddr);
saved_page = GetByte(XIRCREG_PR);
/* Read the ISR to see whats the cause for the interrupt.
* This also clears the interrupt flags on CE2 cards
*/
int_status = GetByte(XIRCREG_ISR);
bytes_rcvd = 0;
loop_entry:
if (int_status == 0xff) { /* card may be ejected */
pr_debug("%s: interrupt %d for dead card\n", dev->name, irq);
goto leave;
}
eth_status = GetByte(XIRCREG_ESR);
SelectPage(0x40);
rx_status = GetByte(XIRCREG40_RXST0);
PutByte(XIRCREG40_RXST0, (~rx_status & 0xff));
tx_status = GetByte(XIRCREG40_TXST0);
tx_status |= GetByte(XIRCREG40_TXST1) << 8;
PutByte(XIRCREG40_TXST0, 0);
PutByte(XIRCREG40_TXST1, 0);
pr_debug("%s: ISR=%#2.2x ESR=%#2.2x RSR=%#2.2x TSR=%#4.4x\n",
dev->name, int_status, eth_status, rx_status, tx_status);
/***** receive section ******/
SelectPage(0);
while (eth_status & FullPktRcvd) {
rsr = GetByte(XIRCREG0_RSR);
if (bytes_rcvd > maxrx_bytes && (rsr & PktRxOk)) {
/* too many bytes received during this int, drop the rest of the
* packets */
dev->stats.rx_dropped++;
pr_debug("%s: RX drop, too much done\n", dev->name);
} else if (rsr & PktRxOk) {
struct sk_buff *skb;
pktlen = GetWord(XIRCREG0_RBC);
bytes_rcvd += pktlen;
pr_debug("rsr=%#02x packet_length=%u\n", rsr, pktlen);
/* 1 extra so we can use insw */
skb = netdev_alloc_skb(dev, pktlen + 3);
if (!skb) {
dev->stats.rx_dropped++;
} else { /* okay get the packet */
skb_reserve(skb, 2);
if (lp->silicon == 0 ) { /* work around a hardware bug */
unsigned rhsa; /* receive start address */
SelectPage(5);
rhsa = GetWord(XIRCREG5_RHSA0);
SelectPage(0);
rhsa += 3; /* skip control infos */
if (rhsa >= 0x8000)
rhsa = 0;
if (rhsa + pktlen > 0x8000) {
unsigned i;
u_char *buf = skb_put(skb, pktlen);
for (i=0; i < pktlen ; i++, rhsa++) {
buf[i] = GetByte(XIRCREG_EDP);
if (rhsa == 0x8000) {
rhsa = 0;
i--;
}
}
} else {
insw(ioaddr+XIRCREG_EDP,
skb_put(skb, pktlen), (pktlen+1)>>1);
}
}
#if 0
else if (lp->mohawk) {
/* To use this 32 bit access we should use
* a manual optimized loop
* Also the words are swapped, we can get more
* performance by using 32 bit access and swapping
* the words in a register. Will need this for cardbus
*
* Note: don't forget to change the ALLOC_SKB to .. +3
*/
unsigned i;
u_long *p = skb_put(skb, pktlen);
register u_long a;
unsigned int edpreg = ioaddr+XIRCREG_EDP-2;
for (i=0; i < len ; i += 4, p++) {
a = inl(edpreg);
__asm__("rorl $16,%0\n\t"
:"=q" (a)
: "0" (a));
*p = a;
}
}
#endif
else {
insw(ioaddr+XIRCREG_EDP, skb_put(skb, pktlen),
(pktlen+1)>>1);
}
skb->protocol = eth_type_trans(skb, dev);
netif_rx(skb);
dev->stats.rx_packets++;
dev->stats.rx_bytes += pktlen;
if (!(rsr & PhyPkt))
dev->stats.multicast++;
}
} else { /* bad packet */
pr_debug("rsr=%#02x\n", rsr);
}
if (rsr & PktTooLong) {
dev->stats.rx_frame_errors++;
pr_debug("%s: Packet too long\n", dev->name);
}
if (rsr & CRCErr) {
dev->stats.rx_crc_errors++;
pr_debug("%s: CRC error\n", dev->name);
}
if (rsr & AlignErr) {
dev->stats.rx_fifo_errors++; /* okay ? */
pr_debug("%s: Alignment error\n", dev->name);
}
/* clear the received/dropped/error packet */
PutWord(XIRCREG0_DO, 0x8000); /* issue cmd: skip_rx_packet */
/* get the new ethernet status */
eth_status = GetByte(XIRCREG_ESR);
}
if (rx_status & 0x10) { /* Receive overrun */
dev->stats.rx_over_errors++;
PutByte(XIRCREG_CR, ClearRxOvrun);
pr_debug("receive overrun cleared\n");
}
/***** transmit section ******/
if (int_status & PktTxed) {
unsigned n, nn;
n = lp->last_ptr_value;
nn = GetByte(XIRCREG0_PTR);
lp->last_ptr_value = nn;
if (nn < n) /* rollover */
dev->stats.tx_packets += 256 - n;
else if (n == nn) { /* happens sometimes - don't know why */
pr_debug("PTR not changed?\n");
} else
dev->stats.tx_packets += lp->last_ptr_value - n;
netif_wake_queue(dev);
}
if (tx_status & 0x0002) { /* Execessive collissions */
pr_debug("tx restarted due to execssive collissions\n");
PutByte(XIRCREG_CR, RestartTx); /* restart transmitter process */
}
if (tx_status & 0x0040)
dev->stats.tx_aborted_errors++;
/* recalculate our work chunk so that we limit the duration of this
* ISR to about 1/10 of a second.
* Calculate only if we received a reasonable amount of bytes.
*/
if (bytes_rcvd > 1000) {
u_long duration = jiffies - start_ticks;
if (duration >= HZ/10) { /* if more than about 1/10 second */
maxrx_bytes = (bytes_rcvd * (HZ/10)) / duration;
if (maxrx_bytes < 2000)
maxrx_bytes = 2000;
else if (maxrx_bytes > 22000)
maxrx_bytes = 22000;
pr_debug("set maxrx=%u (rcvd=%u ticks=%lu)\n",
maxrx_bytes, bytes_rcvd, duration);
} else if (!duration && maxrx_bytes < 22000) {
/* now much faster */
maxrx_bytes += 2000;
if (maxrx_bytes > 22000)
maxrx_bytes = 22000;
pr_debug("set maxrx=%u\n", maxrx_bytes);
}
}
leave:
if (lockup_hack) {
if (int_status != 0xff && (int_status = GetByte(XIRCREG_ISR)) != 0)
goto loop_entry;
}
SelectPage(saved_page);
PutByte(XIRCREG_CR, EnableIntr); /* re-enable interrupts */
/* Instead of dropping packets during a receive, we could
* force an interrupt with this command:
* PutByte(XIRCREG_CR, EnableIntr|ForceIntr);
*/
return IRQ_HANDLED;
} /* xirc2ps_interrupt */
/*====================================================================*/
static void
xirc2ps_tx_timeout_task(struct work_struct *work)
{
local_info_t *local =
container_of(work, local_info_t, tx_timeout_task);
struct net_device *dev = local->dev;
/* reset the card */
do_reset(dev,1);
dev->trans_start = jiffies; /* prevent tx timeout */
netif_wake_queue(dev);
}
static void
xirc_tx_timeout(struct net_device *dev)
{
local_info_t *lp = netdev_priv(dev);
dev->stats.tx_errors++;
netdev_notice(dev, "transmit timed out\n");
schedule_work(&lp->tx_timeout_task);
}
static netdev_tx_t
do_start_xmit(struct sk_buff *skb, struct net_device *dev)
{
local_info_t *lp = netdev_priv(dev);
unsigned int ioaddr = dev->base_addr;
int okay;
unsigned freespace;
unsigned pktlen = skb->len;
pr_debug("do_start_xmit(skb=%p, dev=%p) len=%u\n",
skb, dev, pktlen);
/* adjust the packet length to min. required
* and hope that the buffer is large enough
* to provide some random data.
* fixme: For Mohawk we can change this by sending
* a larger packetlen than we actually have; the chip will
* pad this in his buffer with random bytes
*/
if (pktlen < ETH_ZLEN)
{
if (skb_padto(skb, ETH_ZLEN))
return NETDEV_TX_OK;
pktlen = ETH_ZLEN;
}
netif_stop_queue(dev);
SelectPage(0);
PutWord(XIRCREG0_TRS, (u_short)pktlen+2);
freespace = GetWord(XIRCREG0_TSO);
okay = freespace & 0x8000;
freespace &= 0x7fff;
/* TRS doesn't work - (indeed it is eliminated with sil-rev 1) */
okay = pktlen +2 < freespace;
pr_debug("%s: avail. tx space=%u%s\n",
dev->name, freespace, okay ? " (okay)":" (not enough)");
if (!okay) { /* not enough space */
return NETDEV_TX_BUSY; /* upper layer may decide to requeue this packet */
}
/* send the packet */
PutWord(XIRCREG_EDP, (u_short)pktlen);
outsw(ioaddr+XIRCREG_EDP, skb->data, pktlen>>1);
if (pktlen & 1)
PutByte(XIRCREG_EDP, skb->data[pktlen-1]);
if (lp->mohawk)
PutByte(XIRCREG_CR, TransmitPacket|EnableIntr);
dev_kfree_skb (skb);
dev->stats.tx_bytes += pktlen;
netif_start_queue(dev);
return NETDEV_TX_OK;
}
struct set_address_info {
int reg_nr;
int page_nr;
int mohawk;
unsigned int ioaddr;
};
static void set_address(struct set_address_info *sa_info, char *addr)
{
unsigned int ioaddr = sa_info->ioaddr;
int i;
for (i = 0; i < 6; i++) {
if (sa_info->reg_nr > 15) {
sa_info->reg_nr = 8;
sa_info->page_nr++;
SelectPage(sa_info->page_nr);
}
if (sa_info->mohawk)
PutByte(sa_info->reg_nr++, addr[5 - i]);
else
PutByte(sa_info->reg_nr++, addr[i]);
}
}
/****************
* 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)
{
unsigned int ioaddr = dev->base_addr;
local_info_t *lp = netdev_priv(dev);
struct netdev_hw_addr *ha;
struct set_address_info sa_info;
int i;
/*
* Setup the info structure so that by first set_address call it will do
* SelectPage with the right page number. Hence these ones here.
*/
sa_info.reg_nr = 15 + 1;
sa_info.page_nr = 0x50 - 1;
sa_info.mohawk = lp->mohawk;
sa_info.ioaddr = ioaddr;
set_address(&sa_info, dev->dev_addr);
i = 0;
netdev_for_each_mc_addr(ha, dev) {
if (i++ == 9)
break;
set_address(&sa_info, ha->addr);
}
while (i++ < 9)
set_address(&sa_info, dev->dev_addr);
SelectPage(0);
}
/****************
* 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)
{
unsigned int ioaddr = dev->base_addr;
unsigned value;
SelectPage(0x42);
value = GetByte(XIRCREG42_SWC1) & 0xC0;
if (dev->flags & IFF_PROMISC) { /* snoop */
PutByte(XIRCREG42_SWC1, value | 0x06); /* set MPE and PME */
} else if (netdev_mc_count(dev) > 9 || (dev->flags & IFF_ALLMULTI)) {
PutByte(XIRCREG42_SWC1, value | 0x02); /* set MPE */
} else if (!netdev_mc_empty(dev)) {
/* the chip can filter 9 addresses perfectly */
PutByte(XIRCREG42_SWC1, value | 0x01);
SelectPage(0x40);
PutByte(XIRCREG40_CMD0, Offline);
set_addresses(dev);
SelectPage(0x40);
PutByte(XIRCREG40_CMD0, EnableRecv | Online);
} else { /* standard usage */
PutByte(XIRCREG42_SWC1, value | 0x00);
}
SelectPage(0);
}
static int
do_config(struct net_device *dev, struct ifmap *map)
{
local_info_t *local = netdev_priv(dev);
pr_debug("do_config(%p)\n", dev);
if (map->port != 255 && map->port != dev->if_port) {
if (map->port > 4)
return -EINVAL;
if (!map->port) {
local->probe_port = 1;
dev->if_port = 1;
} else {
local->probe_port = 0;
dev->if_port = map->port;
}
netdev_info(dev, "switching to %s port\n", if_names[dev->if_port]);
do_reset(dev,1); /* not the fine way :-) */
}
return 0;
}
/****************
* Open the driver
*/
static int
do_open(struct net_device *dev)
{
local_info_t *lp = netdev_priv(dev);
struct pcmcia_device *link = lp->p_dev;
dev_dbg(&link->dev, "do_open(%p)\n", dev);
/* Check that the PCMCIA card is still here. */
/* Physical device present signature. */
if (!pcmcia_dev_present(link))
return -ENODEV;
/* okay */
link->open++;
netif_start_queue(dev);
do_reset(dev,1);
return 0;
}
static void netdev_get_drvinfo(struct net_device *dev,
struct ethtool_drvinfo *info)
{
strlcpy(info->driver, "xirc2ps_cs", sizeof(info->driver));
snprintf(info->bus_info, sizeof(info->bus_info), "PCMCIA 0x%lx",
dev->base_addr);
}
static const struct ethtool_ops netdev_ethtool_ops = {
.get_drvinfo = netdev_get_drvinfo,
};
static int
do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
{
local_info_t *local = netdev_priv(dev);
unsigned int ioaddr = dev->base_addr;
struct mii_ioctl_data *data = if_mii(rq);
pr_debug("%s: ioctl(%-.6s, %#04x) %04x %04x %04x %04x\n",
dev->name, rq->ifr_ifrn.ifrn_name, cmd,
data->phy_id, data->reg_num, data->val_in, data->val_out);
if (!local->mohawk)
return -EOPNOTSUPP;
switch(cmd) {
case SIOCGMIIPHY: /* Get the address of the PHY in use. */
data->phy_id = 0; /* we have only this address */
/* fall through */
case SIOCGMIIREG: /* Read the specified MII register. */
data->val_out = mii_rd(ioaddr, data->phy_id & 0x1f,
data->reg_num & 0x1f);
break;
case SIOCSMIIREG: /* Write the specified MII register */
mii_wr(ioaddr, data->phy_id & 0x1f, data->reg_num & 0x1f, data->val_in,
16);
break;
default:
return -EOPNOTSUPP;
}
return 0;
}
static void
hardreset(struct net_device *dev)
{
local_info_t *local = netdev_priv(dev);
unsigned int ioaddr = dev->base_addr;
SelectPage(4);
udelay(1);
PutByte(XIRCREG4_GPR1, 0); /* clear bit 0: power down */
msleep(40); /* wait 40 msec */
if (local->mohawk)
PutByte(XIRCREG4_GPR1, 1); /* set bit 0: power up */
else
PutByte(XIRCREG4_GPR1, 1 | 4); /* set bit 0: power up, bit 2: AIC */
msleep(20); /* wait 20 msec */
}
static void
do_reset(struct net_device *dev, int full)
{
local_info_t *local = netdev_priv(dev);
unsigned int ioaddr = dev->base_addr;
unsigned value;
pr_debug("%s: do_reset(%p,%d)\n", dev? dev->name:"eth?", dev, full);
hardreset(dev);
PutByte(XIRCREG_CR, SoftReset); /* set */
msleep(20); /* wait 20 msec */
PutByte(XIRCREG_CR, 0); /* clear */
msleep(40); /* wait 40 msec */
if (local->mohawk) {
SelectPage(4);
/* set pin GP1 and GP2 to output (0x0c)
* set GP1 to low to power up the ML6692 (0x00)
* set GP2 to high to power up the 10Mhz chip (0x02)
*/
PutByte(XIRCREG4_GPR0, 0x0e);
}
/* give the circuits some time to power up */
msleep(500); /* about 500ms */
local->last_ptr_value = 0;
local->silicon = local->mohawk ? (GetByte(XIRCREG4_BOV) & 0x70) >> 4
: (GetByte(XIRCREG4_BOV) & 0x30) >> 4;
if (local->probe_port) {
if (!local->mohawk) {
SelectPage(4);
PutByte(XIRCREG4_GPR0, 4);
local->probe_port = 0;
}
} else if (dev->if_port == 2) { /* enable 10Base2 */
SelectPage(0x42);
PutByte(XIRCREG42_SWC1, 0xC0);
} else { /* enable 10BaseT */
SelectPage(0x42);
PutByte(XIRCREG42_SWC1, 0x80);
}
msleep(40); /* wait 40 msec to let it complete */
#if 0
{
SelectPage(0);
value = GetByte(XIRCREG_ESR); /* read the ESR */
pr_debug("%s: ESR is: %#02x\n", dev->name, value);
}
#endif
/* setup the ECR */
SelectPage(1);
PutByte(XIRCREG1_IMR0, 0xff); /* allow all ints */
PutByte(XIRCREG1_IMR1, 1 ); /* and Set TxUnderrunDetect */
value = GetByte(XIRCREG1_ECR);
#if 0
if (local->mohawk)
value |= DisableLinkPulse;
PutByte(XIRCREG1_ECR, value);
#endif
pr_debug("%s: ECR is: %#02x\n", dev->name, value);
SelectPage(0x42);
PutByte(XIRCREG42_SWC0, 0x20); /* disable source insertion */
if (local->silicon != 1) {
/* set the local memory dividing line.
* The comments in the sample code say that this is only
* settable with the scipper version 2 which is revision 0.
* Always for CE3 cards
*/
SelectPage(2);
PutWord(XIRCREG2_RBS, 0x2000);
}
if (full)
set_addresses(dev);
/* Hardware workaround:
* The receive byte pointer after reset is off by 1 so we need
* to move the offset pointer back to 0.
*/
SelectPage(0);
PutWord(XIRCREG0_DO, 0x2000); /* change offset command, off=0 */
/* setup MAC IMRs and clear status registers */
SelectPage(0x40); /* Bit 7 ... bit 0 */
PutByte(XIRCREG40_RMASK0, 0xff); /* ROK, RAB, rsv, RO, CRC, AE, PTL, MP */
PutByte(XIRCREG40_TMASK0, 0xff); /* TOK, TAB, SQE, LL, TU, JAB, EXC, CRS */
PutByte(XIRCREG40_TMASK1, 0xb0); /* rsv, rsv, PTD, EXT, rsv,rsv,rsv, rsv*/
PutByte(XIRCREG40_RXST0, 0x00); /* ROK, RAB, REN, RO, CRC, AE, PTL, MP */
PutByte(XIRCREG40_TXST0, 0x00); /* TOK, TAB, SQE, LL, TU, JAB, EXC, CRS */
PutByte(XIRCREG40_TXST1, 0x00); /* TEN, rsv, PTD, EXT, retry_counter:4 */
if (full && local->mohawk && init_mii(dev)) {
if (dev->if_port == 4 || local->dingo || local->new_mii) {
netdev_info(dev, "MII selected\n");
SelectPage(2);
PutByte(XIRCREG2_MSR, GetByte(XIRCREG2_MSR) | 0x08);
msleep(20);
} else {
netdev_info(dev, "MII detected; using 10mbs\n");
SelectPage(0x42);
if (dev->if_port == 2) /* enable 10Base2 */
PutByte(XIRCREG42_SWC1, 0xC0);
else /* enable 10BaseT */
PutByte(XIRCREG42_SWC1, 0x80);
msleep(40); /* wait 40 msec to let it complete */
}
if (full_duplex)
PutByte(XIRCREG1_ECR, GetByte(XIRCREG1_ECR | FullDuplex));
} else { /* No MII */
SelectPage(0);
value = GetByte(XIRCREG_ESR); /* read the ESR */
dev->if_port = (value & MediaSelect) ? 1 : 2;
}
/* configure the LEDs */
SelectPage(2);
if (dev->if_port == 1 || dev->if_port == 4) /* TP: Link and Activity */
PutByte(XIRCREG2_LED, 0x3b);
else /* Coax: Not-Collision and Activity */
PutByte(XIRCREG2_LED, 0x3a);
if (local->dingo)
PutByte(0x0b, 0x04); /* 100 Mbit LED */
/* enable receiver and put the mac online */
if (full) {
set_multicast_list(dev);
SelectPage(0x40);
PutByte(XIRCREG40_CMD0, EnableRecv | Online);
}
/* setup Ethernet IMR and enable interrupts */
SelectPage(1);
PutByte(XIRCREG1_IMR0, 0xff);
udelay(1);
SelectPage(0);
PutByte(XIRCREG_CR, EnableIntr);
if (local->modem && !local->dingo) { /* do some magic */
if (!(GetByte(0x10) & 0x01))
PutByte(0x10, 0x11); /* unmask master-int bit */
}
if (full)
netdev_info(dev, "media %s, silicon revision %d\n",
if_names[dev->if_port], local->silicon);
/* We should switch back to page 0 to avoid a bug in revision 0
* where regs with offset below 8 can't be read after an access
* to the MAC registers */
SelectPage(0);
}
/****************
* Initialize the Media-Independent-Interface
* Returns: True if we have a good MII
*/
static int
init_mii(struct net_device *dev)
{
local_info_t *local = netdev_priv(dev);
unsigned int ioaddr = dev->base_addr;
unsigned control, status, linkpartner;
int i;
if (if_port == 4 || if_port == 1) { /* force 100BaseT or 10BaseT */
dev->if_port = if_port;
local->probe_port = 0;
return 1;
}
status = mii_rd(ioaddr, 0, 1);
if ((status & 0xff00) != 0x7800)
return 0; /* No MII */
local->new_mii = (mii_rd(ioaddr, 0, 2) != 0xffff);
if (local->probe_port)
control = 0x1000; /* auto neg */
else if (dev->if_port == 4)
control = 0x2000; /* no auto neg, 100mbs mode */
else
control = 0x0000; /* no auto neg, 10mbs mode */
mii_wr(ioaddr, 0, 0, control, 16);
udelay(100);
control = mii_rd(ioaddr, 0, 0);
if (control & 0x0400) {
netdev_notice(dev, "can't take PHY out of isolation mode\n");
local->probe_port = 0;
return 0;
}
if (local->probe_port) {
/* according to the DP83840A specs the auto negotiation process
* may take up to 3.5 sec, so we use this also for our ML6692
* Fixme: Better to use a timer here!
*/
for (i=0; i < 35; i++) {
msleep(100); /* wait 100 msec */
status = mii_rd(ioaddr, 0, 1);
if ((status & 0x0020) && (status & 0x0004))
break;
}
if (!(status & 0x0020)) {
netdev_info(dev, "autonegotiation failed; using 10mbs\n");
if (!local->new_mii) {
control = 0x0000;
mii_wr(ioaddr, 0, 0, control, 16);
udelay(100);
SelectPage(0);
dev->if_port = (GetByte(XIRCREG_ESR) & MediaSelect) ? 1 : 2;
}
} else {
linkpartner = mii_rd(ioaddr, 0, 5);
netdev_info(dev, "MII link partner: %04x\n", linkpartner);
if (linkpartner & 0x0080) {
dev->if_port = 4;
} else
dev->if_port = 1;
}
}
return 1;
}
static void
do_powerdown(struct net_device *dev)
{
unsigned int ioaddr = dev->base_addr;
pr_debug("do_powerdown(%p)\n", dev);
SelectPage(4);
PutByte(XIRCREG4_GPR1, 0); /* clear bit 0: power down */
SelectPage(0);
}
static int
do_stop(struct net_device *dev)
{
unsigned int ioaddr = dev->base_addr;
local_info_t *lp = netdev_priv(dev);
struct pcmcia_device *link = lp->p_dev;
dev_dbg(&link->dev, "do_stop(%p)\n", dev);
if (!link)
return -ENODEV;
netif_stop_queue(dev);
SelectPage(0);
PutByte(XIRCREG_CR, 0); /* disable interrupts */
SelectPage(0x01);
PutByte(XIRCREG1_IMR0, 0x00); /* forbid all ints */
SelectPage(4);
PutByte(XIRCREG4_GPR1, 0); /* clear bit 0: power down */
SelectPage(0);
link->open--;
return 0;
}
static const struct pcmcia_device_id xirc2ps_ids[] = {
PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0089, 0x110a),
PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0138, 0x110a),
PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "CEM28", 0x2e3ee845, 0x0ea978ea),
PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "CEM33", 0x2e3ee845, 0x80609023),
PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "CEM56", 0x2e3ee845, 0xa650c32a),
PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "REM10", 0x2e3ee845, 0x76df1d29),
PCMCIA_PFC_DEVICE_PROD_ID13(0, "Xircom", "XEM5600", 0x2e3ee845, 0xf1403719),
PCMCIA_PFC_DEVICE_PROD_ID12(0, "Xircom", "CreditCard Ethernet+Modem II", 0x2e3ee845, 0xeca401bf),
PCMCIA_DEVICE_MANF_CARD(0x01bf, 0x010a),
PCMCIA_DEVICE_PROD_ID13("Toshiba Information Systems", "TPCENET", 0x1b3b94fe, 0xf381c1a2),
PCMCIA_DEVICE_PROD_ID13("Xircom", "CE3-10/100", 0x2e3ee845, 0x0ec0ac37),
PCMCIA_DEVICE_PROD_ID13("Xircom", "PS-CE2-10", 0x2e3ee845, 0x947d9073),
PCMCIA_DEVICE_PROD_ID13("Xircom", "R2E-100BTX", 0x2e3ee845, 0x2464a6e3),
PCMCIA_DEVICE_PROD_ID13("Xircom", "RE-10", 0x2e3ee845, 0x3e08d609),
PCMCIA_DEVICE_PROD_ID13("Xircom", "XE2000", 0x2e3ee845, 0xf7188e46),
PCMCIA_DEVICE_PROD_ID12("Compaq", "Ethernet LAN Card", 0x54f7c49c, 0x9fd2f0a2),
PCMCIA_DEVICE_PROD_ID12("Compaq", "Netelligent 10/100 PC Card", 0x54f7c49c, 0xefe96769),
PCMCIA_DEVICE_PROD_ID12("Intel", "EtherExpress(TM) PRO/100 PC Card Mobile Adapter16", 0x816cc815, 0x174397db),
PCMCIA_DEVICE_PROD_ID12("Toshiba", "10/100 Ethernet PC Card", 0x44a09d9c, 0xb44deecf),
/* also matches CFE-10 cards! */
/* PCMCIA_DEVICE_MANF_CARD(0x0105, 0x010a), */
PCMCIA_DEVICE_NULL,
};
MODULE_DEVICE_TABLE(pcmcia, xirc2ps_ids);
static struct pcmcia_driver xirc2ps_cs_driver = {
.owner = THIS_MODULE,
.name = "xirc2ps_cs",
.probe = xirc2ps_probe,
.remove = xirc2ps_detach,
.id_table = xirc2ps_ids,
.suspend = xirc2ps_suspend,
.resume = xirc2ps_resume,
};
module_pcmcia_driver(xirc2ps_cs_driver);
#ifndef MODULE
static int __init setup_xirc2ps_cs(char *str)
{
/* if_port, full_duplex, do_sound, lockup_hack
*/
int ints[10] = { -1 };
str = get_options(str, 9, ints);
#define MAYBE_SET(X,Y) if (ints[0] >= Y && ints[Y] != -1) { X = ints[Y]; }
MAYBE_SET(if_port, 3);
MAYBE_SET(full_duplex, 4);
MAYBE_SET(do_sound, 5);
MAYBE_SET(lockup_hack, 6);
#undef MAYBE_SET
return 1;
}
__setup("xirc2ps_cs=", setup_xirc2ps_cs);
#endif
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