patch-2.3.23 linux/drivers/net/pcmcia/xirc2ps_cs.c
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- Lines: 2365
- Date:
Wed Oct 20 21:33:12 1999
- Orig file:
v2.3.22/linux/drivers/net/pcmcia/xirc2ps_cs.c
- Orig date:
Wed Dec 31 16:00:00 1969
diff -u --recursive --new-file v2.3.22/linux/drivers/net/pcmcia/xirc2ps_cs.c linux/drivers/net/pcmcia/xirc2ps_cs.c
@@ -0,0 +1,2364 @@
+/* [xirc2ps_cs.c wk 14.04.97] (1.31 1998/12/09 19:32:55)
+ * Xircom Creditcard Ethernet Adapter IIps driver
+ *
+ * This driver works for the CE2, CEM28, CEM33, CE3 and CEM56 cards.
+ * The CEM56 has some problems, but it works.
+ * The CEII card with the 14k4 modem and other old cards do not work.
+ *
+ * Written by Werner Koch (werner.koch@guug.de),
+ * based on David Hinds skeleton driver.
+ *
+ * You can get the latest driver revision from
+ * "http://www.d.shuttle.de/isil/xircom/xirc2ps.html"
+ *
+ * Please report bugs to: "xircom-bugs@isil.d.shuttle.de"
+ *
+ * A bug fix for the CEM56 to use modem and ethernet simultaneously
+ * was provided by Koen Van Herck (Koen.Van.Herck@xircom.com).
+ *
+ * If your card locks up you should use the option "lockup_hack=1";
+ * this may solve the problem but violates a kernel timing convention
+ * (Thanks to David Luyer).
+ *
+ * Thanks to David Hinds for the PCMCIA package, Donald Becker for some
+ * advice, Xircom for providing specs and help, 4PC GmbH Duesseldorf for
+ * providing some hardware and last not least to all folks who helped to
+ * develop this driver.
+ *
+ * For those, who are willing to do alpha testing of drivers, I have setup
+ * the mailing list "xircom-devel@isil.d.shuttle.de" (To subscribe send a
+ * message containing the word "subscribe" in the subject or somewhere at
+ * the beginning of a line to "xircom-devel-request@isil.d.shuttle.de").
+ *
+ ************************************************************************
+ * 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.
+ */
+
+/* Enable the bug fix for CEM56 to use modem and ethernet simultaneously */
+#define CEM56_FIX
+
+#if !defined(PCMCIA_DEBUG) && 0
+ #define PCMCIA_DEBUG 4
+#endif
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/sched.h>
+#include <linux/ptrace.h>
+#include <linux/malloc.h>
+#include <linux/string.h>
+#include <linux/timer.h>
+#include <linux/interrupt.h>
+#include <linux/in.h>
+#include <linux/delay.h>
+#include <asm/io.h>
+#include <asm/system.h>
+#include <asm/bitops.h>
+
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+#include <linux/if_arp.h>
+#include <linux/ioport.h>
+
+#include <pcmcia/version.h>
+#include <pcmcia/cs_types.h>
+#include <pcmcia/cs.h>
+#include <pcmcia/cistpl.h>
+#include <pcmcia/cisreg.h>
+#include <pcmcia/ciscode.h>
+
+#ifndef MANFID_XIRCOM
+ #define MANFID_XIRCOM 0x0105
+#endif
+#ifndef MANFID_COMPAQ
+ #define MANFID_COMPAQ 0x0138
+ #define MANFID_COMPAQ2 0x0183 /* is this correct? */
+#endif
+#ifndef MANFID_INTEL
+ #define MANFID_INTEL 0x0089
+#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 occured */
+ 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 char *if_names[] = { "Auto", "10BaseT", "10Base2", "AUI", "100BaseT" };
+
+/****************
+ * All the PCMCIA modules use PCMCIA_DEBUG to control debugging. If
+ * you do not define PCMCIA_DEBUG at all, all the debug code will be
+ * left out. If you compile with PCMCIA_DEBUG=0, the debug code will
+ * be present but disabled -- but it can then be enabled for specific
+ * modules at load time with a 'pc_debug=#' option to insmod.
+ */
+#ifdef PCMCIA_DEBUG
+static int pc_debug = PCMCIA_DEBUG;
+MODULE_PARM(pc_debug, "i");
+#endif
+static char *version =
+"xirc2ps_cs.c 1.31 1998/12/09 19:32:55 (dd9jn+kvh)";
+ /* !--- CVS revision */
+#define KDBG_XIRC KERN_DEBUG "xirc2ps_cs: "
+#define KERR_XIRC KERN_ERR "xirc2ps_cs: "
+#define KWRN_XIRC KERN_WARNING "xirc2ps_cs: "
+#define KNOT_XIRC KERN_NOTICE "xirc2ps_cs: "
+#define KINF_XIRC KERN_INFO "xirc2ps_cs: "
+
+/* 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 */
+/*====================================================================*/
+
+/* Parameters that can be set with 'insmod' */
+static int if_port = 0;
+MODULE_PARM(if_port, "i");
+
+/* Bit map of interrupts to choose from */
+/* This means pick from 15, 14, 12, 11, 10, 9, 7, 5, 4, and 3 */
+static u_long irq_mask = 0xdeb8;
+MODULE_PARM(irq_mask, "i");
+
+static int irq_list[4] = { -1 };
+MODULE_PARM(irq_list, "1-4i");
+
+static int do_sound = 1;
+MODULE_PARM(do_sound, "i");
+
+static int card_type = 0;
+MODULE_PARM(card_type, "i"); /* dummy, not used anymore */
+
+static int lockup_hack = 0;
+MODULE_PARM(lockup_hack, "i"); /* 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(ioaddr_t ioaddr);
+static void mii_putbit(ioaddr_t ioaddr, unsigned data);
+static int mii_getbit( ioaddr_t ioaddr );
+static void mii_wbits(ioaddr_t ioaddr, unsigned data, int len);
+static unsigned mii_rd(ioaddr_t ioaddr, u_char phyaddr, u_char phyreg);
+static void mii_wr(ioaddr_t ioaddr, u_char phyaddr, u_char phyreg,
+ unsigned data, int len);
+
+/*
+ * The event() function is this driver's Card Services event handler.
+ * It will be called by Card Services when an appropriate card status
+ * event is received. The config() and release() entry points are
+ * used to configure or release a socket, in response to card insertion
+ * and ejection events. They are invoked from the event handler.
+ */
+
+static int has_ce2_string(dev_link_t * link);
+static void xirc2ps_config(dev_link_t * link);
+static void xirc2ps_release(u_long arg);
+static int xirc2ps_event(event_t event, int priority,
+ event_callback_args_t * args);
+
+/****************
+ * The attach() and detach() entry points are used to create and destroy
+ * "instances" of the driver, where each instance represents everything
+ * needed to manage one actual PCMCIA card.
+ */
+
+static dev_link_t *xirc2ps_attach(void);
+static void xirc2ps_detach(dev_link_t *);
+
+/****************
+ * You'll also need to prototype all the functions that will actually
+ * be used to talk to your device. See 'pcmem_cs' for a good example
+ * of a fully self-sufficient driver; the other drivers rely more or
+ * less on other parts of the kernel.
+ */
+
+static void xirc2ps_interrupt(int irq, void *dev_id, struct pt_regs *regs);
+
+/*
+ * The dev_info variable is the "key" that is used to match up this
+ * device driver with appropriate cards, through the card configuration
+ * database.
+ */
+
+static dev_info_t dev_info = "xirc2ps_cs";
+
+/****************
+ * A linked list of "instances" of the device. Each actual
+ * PCMCIA card corresponds to one device instance, and is described
+ * by one dev_link_t structure (defined in ds.h).
+ *
+ * You may not want to use a linked list for this -- for example, the
+ * memory card driver uses an array of dev_link_t pointers, where minor
+ * device numbers are used to derive the corresponding array index.
+ */
+
+static dev_link_t *dev_list = NULL;
+
+/****************
+ * A dev_link_t structure has fields for most things that are needed
+ * to keep track of a socket, but there will usually be some device
+ * specific information that also needs to be kept track of. The
+ * 'priv' pointer in a dev_link_t structure can be used to point to
+ * a device-specific private data structure, like this.
+ *
+ * A driver needs to provide a dev_node_t structure for each device
+ * on a card. In some cases, there is only one device per card (for
+ * example, ethernet cards, modems). In other cases, there may be
+ * many actual or logical devices (SCSI adapters, memory cards with
+ * multiple partitions). The dev_node_t structures need to be kept
+ * in a linked list starting at the 'dev' field of a dev_link_t
+ * structure. We allocate them in the card's private data structure,
+ * because they generally can't be allocated dynamically.
+ */
+
+typedef struct local_info_t {
+ dev_node_t node;
+ struct enet_statistics stats;
+ 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 modem; /* is a multi function card (i.e with a modem) */
+ caddr_t dingo_ccr; /* only used for CEM56 cards */
+ int suspended;
+ unsigned last_ptr_value; /* last packets transmitted value */
+ const char *manf_str;
+} local_info_t;
+
+/****************
+ * Some more prototypes
+ */
+static int do_start_xmit(struct sk_buff *skb, struct net_device *dev);
+static struct enet_statistics *do_get_stats(struct net_device *dev);
+static void set_addresses(struct net_device *dev);
+static void set_multicast_list(struct net_device *dev);
+static int do_init(struct net_device *dev);
+static int set_card_type( dev_link_t *link, const void *s );
+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 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 =========================*/
+static void
+flush_stale_links(void)
+{
+ dev_link_t *link, *next;
+ for (link = dev_list; link; link = next) {
+ next = link->next;
+ if (link->state & DEV_STALE_LINK)
+ xirc2ps_detach(link);
+ }
+}
+
+static void
+cs_error(client_handle_t handle, int func, int ret)
+{
+ error_info_t err = { func, ret };
+ CardServices(ReportError, handle, &err);
+}
+
+static int
+get_tuple_data(int fn, client_handle_t handle, tuple_t *tuple )
+{
+ int err;
+
+ if( (err=CardServices(fn, handle, tuple)) )
+ return err;
+ return CardServices(GetTupleData, handle, tuple);
+}
+
+static int
+get_tuple(int fn, client_handle_t handle, tuple_t *tuple, cisparse_t *parse)
+{
+ int err;
+
+ if( (err=get_tuple_data(fn, handle, tuple)) )
+ return err;
+ return CardServices(ParseTuple, handle, tuple, parse);
+}
+
+#define first_tuple(a, b, c) get_tuple(GetFirstTuple, a, b, c)
+#define next_tuple(a, b, c) get_tuple(GetNextTuple, a, b, c)
+
+#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))
+
+static void
+busy_loop(u_long len)
+{
+ u_long timeout = jiffies + len;
+ u_long flags;
+
+ save_flags(flags);
+ sti();
+ while(timeout >= jiffies)
+ ;
+ restore_flags(flags);
+}
+
+/*====== Functions used for debugging =================================*/
+#if defined(PCMCIA_DEBUG) && 0 /* reading regs may change system status */
+static void
+PrintRegisters(struct net_device *dev)
+{
+ ioaddr_t ioaddr = dev->base_addr;
+
+ if(pc_debug > 1) {
+ int i, page;
+
+ printk(KDBG_XIRC "Register common: ");
+ for(i = 0; i < 8; i++ )
+ printk(" %2.2x", GetByte(i) );
+ printk("\n");
+ for(page = 0; page <= 8; page++) {
+ printk(KDBG_XIRC "Register page %2x: ", page);
+ SelectPage(page);
+ for(i = 8; i < 16; i++)
+ printk(" %2.2x", GetByte(i));
+ printk("\n");
+ }
+ for(page=0x40 ; page <= 0x5f; page++) {
+ if( page == 0x43 || (page >= 0x46 && page <= 0x4f)
+ || (page >= 0x51 && page <=0x5e) )
+ continue;
+ printk(KDBG_XIRC "Register page %2x: ", page);
+ SelectPage(page);
+ for(i = 8; i < 16; i++)
+ printk(" %2.2x", GetByte(i));
+ printk("\n");
+ }
+ }
+}
+#endif /* PCMCIA_DEBUG */
+
+/*============== MII Management functions ===============*/
+
+/****************
+ * Turn around for read
+ */
+static void
+mii_idle(ioaddr_t 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(ioaddr_t 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( ioaddr_t 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(ioaddr_t ioaddr, unsigned data, int len)
+{
+ unsigned m = 1 << (len-1);
+ for( ; m; m >>= 1)
+ mii_putbit( ioaddr, data & m );
+}
+
+static unsigned
+mii_rd(ioaddr_t 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(ioaddr_t 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);
+}
+
+#ifdef PCMCIA_DEBUG
+static void
+mii_dump(struct net_device *dev)
+{
+ ioaddr_t ioaddr = dev->base_addr;
+ int i;
+
+ /* Note that registers 14, 1d,1e and 1f are reserved and should
+ * not be read according to the DP83840A specs.
+ */
+ printk(KERN_DEBUG "%s: MII register dump:\n", dev->name);
+ for(i=0; i < 32; i++ ) {
+ if( !(i % 8) ) {
+ if( i )
+ printk("\n");
+ printk(KERN_DEBUG "%s:", dev->name );
+ }
+ printk(" %04x", mii_rd(ioaddr, 0, i) );
+ }
+ printk("\n");
+}
+#endif
+
+/*============= Main bulk of functions =========================*/
+
+/****************
+ * xirc2ps_attach() creates an "instance" of the driver, allocating
+ * local data structures for one device. The device is registered
+ * with Card Services.
+ *
+ * The dev_link structure is initialized, but we don't actually
+ * configure the card at this point -- we wait until we receive a
+ * card insertion event.
+ */
+
+static dev_link_t *
+xirc2ps_attach(void)
+{
+ client_reg_t client_reg;
+ dev_link_t *link;
+ struct net_device *dev;
+ local_info_t *local;
+ int err;
+
+ #ifdef PCMCIA_DEBUG
+ if(pc_debug)
+ printk(KDBG_XIRC "attach()\n");
+ #endif
+ flush_stale_links();
+
+ /* Initialize the dev_link_t structure */
+ link = kmalloc(sizeof(struct dev_link_t), GFP_KERNEL);
+ memset(link, 0, sizeof(struct dev_link_t));
+ link->release.function = &xirc2ps_release;
+ link->release.data = (u_long) link;
+
+ /* General socket configuration */
+ link->conf.Attributes = CONF_ENABLE_IRQ;
+ link->conf.Vcc = 50;
+ link->conf.IntType = INT_MEMORY_AND_IO;
+ link->conf.ConfigIndex = 1;
+ link->conf.Present = PRESENT_OPTION;
+
+ /* Allocate space for a device structure */
+ dev = kmalloc(sizeof(struct net_device), GFP_KERNEL);
+ memset(dev, 0, sizeof(struct net_device));
+ local = kmalloc(sizeof(local_info_t), GFP_KERNEL);
+ memset(local, 0, sizeof(local_info_t));
+ dev->priv = local;
+
+ /* Fill in card specific entries */
+ dev->hard_start_xmit = &do_start_xmit;
+ dev->set_config = &do_config;
+ dev->get_stats = &do_get_stats;
+ dev->do_ioctl = &do_ioctl;
+ dev->set_multicast_list = &set_multicast_list;
+ ether_setup(dev);
+ dev->name = local->node.dev_name;
+ dev->init = &do_init;
+ dev->open = &do_open;
+ dev->stop = &do_stop;
+ dev->tbusy = 1;
+ link->priv = dev;
+
+ /* Register with Card Services */
+ link->next = dev_list;
+ dev_list = link;
+ client_reg.dev_info = &dev_info;
+ client_reg.Attributes = INFO_IO_CLIENT | INFO_CARD_SHARE;
+ client_reg.EventMask =
+ CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL |
+ CS_EVENT_RESET_PHYSICAL | CS_EVENT_CARD_RESET |
+ CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME;
+ client_reg.event_handler = &xirc2ps_event;
+ client_reg.Version = 0x0210;
+ client_reg.event_callback_args.client_data = link;
+ if( (err = CardServices(RegisterClient, &link->handle, &client_reg)) ) {
+ cs_error(link->handle, RegisterClient, err);
+ xirc2ps_detach(link);
+ return NULL;
+ }
+
+ return link;
+} /* xirc2ps_attach */
+
+/****************
+ * This deletes a driver "instance". The device is de-registered
+ * with Card Services. If it has been released, all local data
+ * structures are freed. Otherwise, the structures will be freed
+ * when the device is released.
+ */
+
+static void
+xirc2ps_detach(dev_link_t * link)
+{
+ dev_link_t **linkp;
+ long flags;
+
+ #ifdef PCMCIA_DEBUG
+ if(pc_debug)
+ printk(KDBG_XIRC "detach(0x%p)\n", link);
+ #endif
+
+ /* Locate device structure */
+ for( linkp = &dev_list; *linkp; linkp = &(*linkp)->next )
+ if( *linkp == link)
+ break;
+ if( !*linkp ) {
+ #ifdef PCMCIA_DEBUG
+ printk(KDBG_XIRC "detach(0x%p): dev_link lost\n", link );
+ #endif
+ return;
+ }
+
+ save_flags(flags);
+ cli();
+ if( link->state & DEV_RELEASE_PENDING ) {
+ del_timer(&link->release);
+ link->state &= ~DEV_RELEASE_PENDING;
+ }
+ restore_flags(flags);
+
+ /*
+ * If the device is currently configured and active, we won't
+ * actually delete it yet. Instead, it is marked so that when
+ * the release() function is called, that will trigger a proper
+ * detach().
+ */
+ if(link->state & DEV_CONFIG) {
+ #ifdef PCMCIA_DEBUG
+ printk(KDBG_XIRC "detach postponed, '%s' "
+ "still locked\n", link->dev->dev_name);
+ #endif
+ link->state |= DEV_STALE_LINK;
+ return;
+ }
+
+ /* Break the link with Card Services */
+ if(link->handle)
+ CardServices(DeregisterClient, link->handle);
+
+ /* Unlink device structure, free pieces */
+ *linkp = link->next;
+ if(link->priv) {
+ struct net_device *dev = link->priv;
+ if (link->dev != NULL)
+ unregister_netdev(dev);
+ if( dev->priv )
+ kfree(dev->priv);
+ kfree(link->priv);
+ }
+ kfree(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( dev_link_t *link, const void *s )
+{
+ struct net_device *dev = link->priv;
+ local_info_t *local = dev->priv;
+ #ifdef PCMCIA_DEBUG
+ unsigned cisrev = ((const unsigned char *)s)[2];
+ #endif
+ unsigned mediaid= ((const unsigned char *)s)[3];
+ unsigned prodid = ((const unsigned char *)s)[4];
+
+ #ifdef PCMCIA_DEBUG
+ if(pc_debug)
+ printk(KDBG_XIRC "cisrev=%02x mediaid=%02x prodid=%02x\n",
+ cisrev, mediaid, prodid );
+ #endif
+
+ local->mohawk = 0;
+ local->dingo = 0;
+ local->modem = 0;
+ local->card_type = XIR_UNKNOWN;
+ if( !(prodid & 0x40) ) {
+ printk(KNOT_XIRC "Ooops: Not a creditcard\n");
+ return 0;
+ }
+ if( !(mediaid & 0x01) ) {
+ printk(KNOT_XIRC "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 ) {
+ printk(KNOT_XIRC "Sorry, this is an old CE card\n");
+ return 0;
+ }
+ if( local->card_type == XIR_UNKNOWN )
+ printk(KNOT_XIRC "Warning: 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(dev_link_t * link)
+{
+ client_handle_t handle = link->handle;
+ tuple_t tuple;
+ cisparse_t parse;
+ u_char buf[256];
+
+ tuple.Attributes = 0;
+ tuple.TupleData = buf;
+ tuple.TupleDataMax = 254;
+ tuple.TupleOffset = 0;
+ tuple.DesiredTuple = CISTPL_VERS_1;
+ if( !first_tuple(handle, &tuple, &parse) && parse.version_1.ns > 2 ) {
+ if( strstr(parse.version_1.str + parse.version_1.ofs[2], "CE2") )
+ return 1;
+ }
+ return 0;
+}
+
+/****************
+ * xirc2ps_config() is scheduled to run after a CARD_INSERTION event
+ * is received, to configure the PCMCIA socket, and to make the
+ * ethernet device available to the system.
+ */
+static void
+xirc2ps_config(dev_link_t * link)
+{
+ client_handle_t handle;
+ tuple_t tuple;
+ cisparse_t parse;
+ struct net_device *dev;
+ local_info_t *local;
+ ioaddr_t ioaddr;
+ int err, i;
+ u_char buf[64];
+ cistpl_lan_node_id_t *node_id = (cistpl_lan_node_id_t*)parse.funce.data;
+ cistpl_cftable_entry_t *cf = &parse.cftable_entry;
+
+ handle = link->handle;
+ dev = link->priv;
+ local = dev->priv;
+ local->dingo_ccr = 0;
+
+ #ifdef PCMCIA_DEBUG
+ if(pc_debug)
+ printk(KDBG_XIRC "config(0x%p)\n", link);
+ #endif
+
+ /*
+ * This reads the card's CONFIG tuple to find its configuration
+ * registers.
+ */
+ tuple.Attributes = 0;
+ tuple.TupleData = buf;
+ tuple.TupleDataMax = 64;
+ tuple.TupleOffset = 0;
+
+ /* Is this a valid card */
+ tuple.DesiredTuple = CISTPL_MANFID;
+ if( (err=first_tuple(handle, &tuple, &parse))) {
+ printk(KNOT_XIRC "manfid not found in CIS\n");
+ goto failure;
+ }
+
+ switch( parse.manfid.manf ) {
+ case MANFID_XIRCOM:
+ local->manf_str = "Xircom";
+ #ifdef PCMCIA_DEBUG
+ if(pc_debug)
+ printk(KDBG_XIRC "found xircom card\n");
+ #endif
+ break;
+ case MANFID_ACCTON:
+ local->manf_str = "Accton";
+ #ifdef PCMCIA_DEBUG
+ if(pc_debug)
+ printk(KDBG_XIRC "found Accton card\n");
+ #endif
+ break;
+ case MANFID_COMPAQ:
+ case MANFID_COMPAQ2:
+ local->manf_str = "Compaq";
+ #ifdef PCMCIA_DEBUG
+ if(pc_debug)
+ printk(KDBG_XIRC "found Compaq card\n");
+ #endif
+ break;
+ case MANFID_INTEL:
+ local->manf_str = "Intel";
+ #ifdef PCMCIA_DEBUG
+ if(pc_debug)
+ printk(KDBG_XIRC "found Intel card\n");
+ #endif
+ break;
+ default:
+ printk(KNOT_XIRC "Unknown Card Manufacturer ID: 0x%04x\n",
+ (unsigned)parse.manfid.manf);
+ goto failure;
+ }
+
+ if( !set_card_type(link, buf ) ) {
+ printk(KNOT_XIRC "this card is not supported\n");
+ goto failure;
+ }
+
+ /* get configuration stuff */
+ tuple.DesiredTuple = CISTPL_CONFIG;
+ if( (err=first_tuple(handle, &tuple, &parse)))
+ goto cis_error;
+ link->conf.ConfigBase = parse.config.base;
+ link->conf.Present = parse.config.rmask[0];
+
+ /* get the ethernet address from the CIS */
+ tuple.DesiredTuple = CISTPL_FUNCE;
+ for( err = first_tuple(handle, &tuple, &parse); !err;
+ err = next_tuple(handle, &tuple, &parse) ) {
+ /* Once I saw two CISTPL_FUNCE_LAN_NODE_ID entries:
+ * the first one with a length of zero the second correct -
+ * so I skip all entries with length 0 */
+ if( parse.funce.type == CISTPL_FUNCE_LAN_NODE_ID
+ && ((cistpl_lan_node_id_t *)parse.funce.data)->nb )
+ break;
+ }
+ if( err ) { /* not found: try to get the node-id from tuple 0x89 */
+ tuple.DesiredTuple = 0x89; /* data layout looks like tuple 0x22 */
+ if( !(err = get_tuple_data(GetFirstTuple, handle, &tuple )) ) {
+ if( tuple.TupleDataLen == 8 && *buf == CISTPL_FUNCE_LAN_NODE_ID )
+ memcpy( &parse, buf, 8 );
+ else
+ err = -1;
+ }
+ }
+ if( err ) { /* another try (James Lehmer's CE2 version 4.1)*/
+ tuple.DesiredTuple = CISTPL_FUNCE;
+ for( err = first_tuple(handle, &tuple, &parse); !err;
+ err = next_tuple(handle, &tuple, &parse) ) {
+ if( parse.funce.type == 0x02 && parse.funce.data[0] == 1
+ && parse.funce.data[1] == 6 && tuple.TupleDataLen == 13 ) {
+ buf[1] = 4;
+ memcpy( &parse, buf+1, 8 );
+ break;
+ }
+ }
+ }
+ if( err ) {
+ printk(KNOT_XIRC "node-id not found in CIS\n");
+ goto failure;
+ }
+ node_id = (cistpl_lan_node_id_t *)parse.funce.data;
+ if( node_id->nb != 6 ) {
+ printk(KNOT_XIRC "malformed node-id in CIS\n");
+ goto failure;
+ }
+ for( i=0; i < 6; i++ )
+ dev->dev_addr[i] = node_id->id[i];
+
+ /* Configure card */
+ link->state |= DEV_CONFIG;
+
+ link->io.IOAddrLines =10;
+ link->io.Attributes1 = IO_DATA_PATH_WIDTH_16;
+ link->irq.Attributes = IRQ_HANDLE_PRESENT;
+ link->irq.IRQInfo1 = IRQ_INFO2_VALID | IRQ_LEVEL_ID;
+ if( irq_list[0] == -1 )
+ link->irq.IRQInfo2 = irq_mask;
+ else {
+ for( i = 0; i < 4; i++)
+ link->irq.IRQInfo2 |= 1 << irq_list[i];
+ }
+ link->irq.Handler = xirc2ps_interrupt;
+ link->irq.Instance = dev;
+ if( local->modem ) {
+ int pass;
+
+ if( do_sound ) {
+ link->conf.Attributes |= CONF_ENABLE_SPKR;
+ link->conf.Status |= CCSR_AUDIO_ENA;
+ }
+ link->irq.Attributes |= IRQ_TYPE_DYNAMIC_SHARING|IRQ_FIRST_SHARED ;
+ link->io.NumPorts2 = 8;
+ link->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
+ if( local->dingo ) {
+ /* Take the Modem IO port from the CIS and scan for a free
+ * Ethernet port */
+ link->io.NumPorts1 = 16; /* no Mako stuff anymore */
+ tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
+ for( err = first_tuple(handle, &tuple, &parse); !err;
+ err = next_tuple(handle, &tuple, &parse) ) {
+ if( cf->io.nwin > 0 && (cf->io.win[0].base & 0xf) == 8 ) {
+ for(ioaddr = 0x300; ioaddr < 0x400; ioaddr += 0x10) {
+ link->conf.ConfigIndex = cf->index ;
+ link->io.BasePort2 = cf->io.win[0].base;
+ link->io.BasePort1 = ioaddr;
+ if( !(err=CardServices(RequestIO, link->handle,
+ &link->io)) )
+ goto port_found;
+ }
+ }
+ }
+ }
+ else {
+ link->io.NumPorts1 = 18;
+ /* 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++ ) {
+ tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
+ for( err = first_tuple(handle, &tuple, &parse); !err;
+ err = next_tuple(handle, &tuple, &parse) ){
+ if( cf->io.nwin > 0 && (cf->io.win[0].base & 0xf) == 8 ){
+ link->conf.ConfigIndex = cf->index ;
+ link->io.BasePort2 = cf->io.win[0].base;
+ link->io.BasePort1 = link->io.BasePort2
+ + (pass ? ( cf->index & 0x20 ? -24:8 )
+ : ( cf->index & 0x20 ? 8:-24) );
+ if( !(err=CardServices(RequestIO, link->handle,
+ &link->io)))
+ goto port_found;
+ }
+ }
+ }
+ /* if special option:
+ * try to configure as Ethernet only.
+ * .... */
+ }
+ printk(KNOT_XIRC "no ports available\n");
+ }
+ else {
+ link->irq.Attributes |= IRQ_TYPE_EXCLUSIVE;
+ link->io.NumPorts1 = 16;
+ for(ioaddr = 0x300; ioaddr < 0x400; ioaddr += 0x10) {
+ link->io.BasePort1 = ioaddr;
+ if( !(err=CardServices(RequestIO, link->handle, &link->io)) )
+ goto port_found;
+ }
+ link->io.BasePort1 = 0; /* let CS decide */
+ if( (err=CardServices(RequestIO, link->handle, &link->io)) ) {
+ cs_error(link->handle, RequestIO, err);
+ 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=CardServices(RequestIRQ, link->handle, &link->irq))) {
+ cs_error(link->handle, RequestIRQ, err);
+ goto config_error;
+ }
+
+ /****************
+ * This actually configures the PCMCIA socket -- setting up
+ * the I/O windows and the interrupt mapping.
+ */
+ if( (err=CardServices(RequestConfiguration,
+ link->handle, &link->conf)) ) {
+ cs_error(link->handle, RequestConfiguration, err);
+ goto config_error;
+ }
+
+ if( local->dingo ) {
+ #ifdef CEM56_FIX
+ conf_reg_t reg;
+ #endif
+ win_req_t req;
+ memreq_t mem;
+
+ #ifdef CEM56_FIX
+ /* 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.
+ */
+ reg.Action = CS_WRITE;
+ reg.Offset = CISREG_IOBASE_0;
+ reg.Value = link->io.BasePort2 & 0xff;
+ if( (err = CardServices(AccessConfigurationRegister, link->handle,
+ ® )) ) {
+ cs_error(link->handle, AccessConfigurationRegister, err);
+ goto config_error;
+ }
+ reg.Action = CS_WRITE;
+ reg.Offset = CISREG_IOBASE_1;
+ reg.Value = (link->io.BasePort2 >> 8) & 0xff;
+ if( (err = CardServices(AccessConfigurationRegister, link->handle,
+ ® )) ) {
+ cs_error(link->handle, AccessConfigurationRegister, err);
+ goto config_error;
+ }
+ #endif
+
+ /* 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
+ */
+ req.Attributes = WIN_DATA_WIDTH_8|WIN_MEMORY_TYPE_AM|WIN_ENABLE;
+ req.Base = 0;
+ req.Size = 0x1000; /* 4k window */
+ req.AccessSpeed = 0;
+ link->win = (window_handle_t)link->handle;
+ if( (err = CardServices(RequestWindow, &link->win, &req )) ) {
+ cs_error(link->handle, RequestWindow, err);
+ goto config_error;
+ }
+ local->dingo_ccr = ioremap(req.Base,0x1000) + 0x0800;
+ mem.CardOffset = 0x0;
+ mem.Page = 0;
+ if( (err = CardServices(MapMemPage, link->win, &mem) ) ) {
+ cs_error(link->handle, MapMemPage, err);
+ 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->io.BasePort1;
+ writeb( ioaddr & 0xff , local->dingo_ccr + CISREG_IOBASE_0 );
+ writeb((ioaddr >> 8)&0xff , local->dingo_ccr + CISREG_IOBASE_1 );
+
+ #if 0
+ {
+ u_char tmp;
+ printk(KERN_INFO "ECOR:" );
+ for(i=0; i < 7; i++ ) {
+ tmp = readb(local->dingo_ccr + i*2 );
+ printk(" %02x", tmp );
+ }
+ printk("\n" );
+ printk(KERN_INFO "DCOR:" );
+ for(i=0; i < 4; i++ ) {
+ tmp = readb(local->dingo_ccr + 0x20 + i*2 );
+ printk(" %02x", tmp );
+ }
+ printk("\n" );
+ printk(KERN_INFO "SCOR:" );
+ for(i=0; i < 10; i++ ) {
+ tmp = readb(local->dingo_ccr + 0x40 + i*2 );
+ printk(" %02x", tmp );
+ }
+ printk("\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=1;
+ dev->if_port = 1;
+ }
+ else if( (if_port >= 1 && if_port <= 2) || (local->mohawk && if_port==4) )
+ dev->if_port = if_port;
+ else
+ printk(KERN_NOTICE "xirc2ps_cs: invalid if_port requested\n");
+
+ /* we can now register the device with the net subsystem */
+ dev->irq = link->irq.AssignedIRQ;
+ dev->base_addr = link->io.BasePort1;
+ dev->tbusy = 0;
+ if( (err=register_netdev(dev)) ) {
+ printk(KERN_NOTICE "xirc2ps_cs: register_netdev() failed\n");
+ goto config_error;
+ }
+
+ link->state &= ~DEV_CONFIG_PENDING;
+ link->dev = &local->node;
+
+ if( local->dingo )
+ do_reset(dev, 1); /* a kludge to make the cem56 work */
+
+ /* give some infos about the hardware */
+ printk(KERN_INFO "%s: %s: port %#3lx, irq %d, hwaddr",
+ dev->name, local->manf_str,(u_long)dev->base_addr, (int)dev->irq );
+ for(i = 0; i < 6; i++)
+ printk("%c%02X", i?':':' ', dev->dev_addr[i]);
+ printk("\n");
+
+ return;
+
+ config_error:
+ link->state &= ~DEV_CONFIG_PENDING;
+ xirc2ps_release((u_long)link);
+ return;
+
+ cis_error:
+ printk(KERN_NOTICE "xirc2ps_cs: unable to parse CIS\n");
+ failure:
+ link->state &= ~DEV_CONFIG_PENDING;
+} /* xirc2ps_config */
+
+/****************
+ * After a card is removed, xirc2ps_release() will unregister the net
+ * device, and release the PCMCIA configuration. If the device is
+ * still open, this will be postponed until it is closed.
+ */
+static void
+xirc2ps_release( u_long arg)
+{
+ dev_link_t *link = (dev_link_t *) arg;
+ struct net_device *dev = link->priv;
+
+ #ifdef PCMCIA_DEBUG
+ if(pc_debug)
+ printk(KDBG_XIRC "release(0x%p)\n", link);
+ #endif
+
+ /*
+ * If the device is currently in use, we won't release until it
+ * is actually closed.
+ */
+ if(link->open) {
+ #ifdef PCMCIA_DEBUG
+ if(pc_debug)
+ printk(KDBG_XIRC "release postponed, '%s' "
+ "still open\n", link->dev->dev_name);
+ #endif
+ link->state |= DEV_STALE_CONFIG;
+ return;
+ }
+
+ if( link->win ) {
+ local_info_t *local = dev->priv;
+ if( local->dingo )
+ iounmap( local->dingo_ccr - 0x0800 );
+ CardServices(ReleaseWindow, link->win );
+ }
+ CardServices(ReleaseConfiguration, link->handle);
+ CardServices(ReleaseIO, link->handle, &link->io);
+ CardServices(ReleaseIRQ, link->handle, &link->irq);
+ link->state &= ~(DEV_CONFIG | DEV_RELEASE_PENDING);
+
+} /* xirc2ps_release */
+
+/*====================================================================*/
+
+/****************
+ * The card status event handler. Mostly, this schedules other
+ * stuff to run after an event is received. A CARD_REMOVAL event
+ * also sets some flags to discourage the net drivers from trying
+ * to talk to the card any more.
+ *
+ * When a CARD_REMOVAL event is received, we immediately set a flag
+ * to block future accesses to this device. All the functions that
+ * actually access the device should check this flag to make sure
+ * the card is still present.
+ */
+
+static int
+xirc2ps_event(event_t event, int priority,
+ event_callback_args_t * args)
+{
+ dev_link_t *link = args->client_data;
+ struct net_device *dev = link->priv;
+ local_info_t *lp = dev? dev->priv : NULL;
+
+ #ifdef PCMCIA_DEBUG
+ if(pc_debug)
+ printk(KDBG_XIRC "event(%d)\n", (int)event );
+ #endif
+
+ switch (event) {
+ case CS_EVENT_REGISTRATION_COMPLETE:
+ #ifdef PCMCIA_DEBUG
+ if(pc_debug)
+ printk(KDBG_XIRC "registration complete\n");
+ #endif
+ break;
+ case CS_EVENT_CARD_REMOVAL:
+ link->state &= ~DEV_PRESENT;
+ if(link->state & DEV_CONFIG) {
+ dev->tbusy = 1; dev->start = 0;
+ link->release.expires = jiffies + HZ / 20;
+ add_timer(&link->release);
+ }
+ break;
+ case CS_EVENT_CARD_INSERTION:
+ link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
+ xirc2ps_config(link);
+ break;
+ case CS_EVENT_PM_SUSPEND:
+ link->state |= DEV_SUSPEND;
+ /* Fall through... */
+ case CS_EVENT_RESET_PHYSICAL:
+ if(link->state & DEV_CONFIG) {
+ if(link->open) {
+ dev->tbusy = 1; dev->start = 0;
+ lp->suspended=1;
+ do_powerdown(dev);
+ }
+ CardServices(ReleaseConfiguration, link->handle);
+ }
+ break;
+ case CS_EVENT_PM_RESUME:
+ link->state &= ~DEV_SUSPEND;
+ /* Fall through... */
+ case CS_EVENT_CARD_RESET:
+ if(link->state & DEV_CONFIG) {
+ CardServices(RequestConfiguration, link->handle, &link->conf);
+ if( link->open) {
+ do_reset(dev,1);
+ lp->suspended=0;
+ dev->tbusy = 0; dev->start = 1;
+ }
+ }
+ break;
+ }
+ return 0;
+} /* xirc2ps_event */
+
+/*====================================================================*/
+
+/****************
+ * This is the Interrupt service route.
+ */
+static void
+xirc2ps_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+{
+ struct net_device *dev = (struct net_device *)dev_id;
+ local_info_t *lp;
+ ioaddr_t 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( !dev->start )
+ return;
+
+ if( dev->interrupt ) {
+ printk(KERR_XIRC "re-entering isr on irq %d (dev=%p)\n", irq, dev);
+ return;
+ }
+ dev->interrupt = 1;
+ lp = dev->priv;
+ ioaddr = dev->base_addr;
+ if( lp->mohawk ) { /* must disable the interrupt */
+ PutByte(XIRCREG_CR, 0 );
+ }
+
+ #ifdef PCMCIA_DEBUG
+ if(pc_debug > 6 )
+ printk(KERN_DEBUG "%s: interrupt %d at %#x.\n", dev->name, irq, ioaddr);
+ #endif
+
+ 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 */
+ #ifdef PCMCIA_DEBUG
+ if( pc_debug > 3 )
+ printk(KERN_DEBUG "%s: interrupt %d for dead card\n", dev->name, irq );
+ #endif
+ 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 );
+
+ #ifdef PCMCIA_DEBUG
+ if( pc_debug > 3 )
+ printk(KERN_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 );
+ #endif
+
+ /***** 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 */
+ lp->stats.rx_dropped++;
+ #ifdef PCMCIA_DEBUG
+ if( pc_debug > 3 )
+ printk(KNOT_XIRC "%s: RX drop, too much done\n", dev->name);
+ #endif
+ PutWord(XIRCREG0_DO, 0x8000 ); /* issue cmd: skip_rx_packet */
+ }
+ else if( rsr & PktRxOk ) {
+ struct sk_buff *skb;
+
+ pktlen = GetWord(XIRCREG0_RBC);
+ bytes_rcvd += pktlen;
+
+ #ifdef PCMCIA_DEBUG
+ if( pc_debug > 5 )
+ printk(KDBG_XIRC "rsr=%#02x packet_length=%u\n", rsr, pktlen );
+ #endif
+
+ skb = dev_alloc_skb(pktlen+3); /* 1 extra so we can use insw */
+ if( !skb ) {
+ #ifdef PCMCIA_DEBUG
+ if( pc_debug )
+ printk(KNOT_XIRC "low memory, packet dropped (size=%u)\n",
+ pktlen );
+ #endif
+ lp->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;
+ ioaddr_t 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);
+ skb->dev = dev;
+ netif_rx(skb);
+ lp->stats.rx_packets++;
+ lp->stats.rx_bytes += pktlen;
+ if( !(rsr & PhyPkt) )
+ lp->stats.multicast++;
+ }
+ PutWord(XIRCREG0_DO, 0x8000 ); /* issue cmd: skip_rx_packet */
+ }
+ else {
+ #ifdef PCMCIA_DEBUG
+ if( pc_debug > 5 )
+ printk("rsr=%#02x\n", rsr );
+ #endif
+ }
+ if( rsr & PktTooLong ) {
+ lp->stats.rx_frame_errors++;
+ #ifdef PCMCIA_DEBUG
+ if( pc_debug > 3 )
+ printk(KNOT_XIRC "%s: Packet too long\n", dev->name);
+ #endif
+ }
+ if( rsr & CRCErr ) {
+ lp->stats.rx_crc_errors++;
+ #ifdef PCMCIA_DEBUG
+ if( pc_debug > 3 )
+ printk(KNOT_XIRC "%s: CRC error\n", dev->name);
+ #endif
+ }
+ if( rsr & AlignErr ) {
+ lp->stats.rx_fifo_errors++; /* okay ? */
+ #ifdef PCMCIA_DEBUG
+ if( pc_debug > 3 )
+ printk(KNOT_XIRC "%s: Alignment error\n", dev->name);
+ #endif
+ }
+
+ /* get the new ethernet status */
+ eth_status = GetByte(XIRCREG_ESR);
+ }
+ if( rx_status & 0x10 ) { /* Receive overrun */
+ lp->stats.rx_over_errors++;
+ PutByte(XIRCREG_CR, ClearRxOvrun);
+ #ifdef PCMCIA_DEBUG
+ if( pc_debug > 3 )
+ printk(KDBG_XIRC "receive overrun cleared\n" );
+ #endif
+ }
+
+ /***** 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 */
+ lp->stats.tx_packets += 256 - n;
+ else if( n == nn ) { /* happens sometimes - don't know why */
+ #ifdef PCMCIA_DEBUG
+ if( pc_debug )
+ printk(KDBG_XIRC "PTR not changed?\n" );
+ #endif
+ }
+ else
+ lp->stats.tx_packets += lp->last_ptr_value - n;
+ dev->tbusy = 0;
+ mark_bh(NET_BH); /* Inform upper layers. */
+ }
+ if( tx_status & 0x0002 ) { /* Execessive collissions */
+ #ifdef PCMCIA_DEBUG
+ if( pc_debug )
+ printk(KDBG_XIRC "tx restarted due to execssive collissions\n" );
+ #endif
+ PutByte(XIRCREG_CR, RestartTx ); /* restart transmitter process */
+ }
+ if( tx_status & 0x0040 )
+ lp->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;
+ #ifdef PCMCIA_DEBUG
+ if( pc_debug > 1)
+ printk(KDBG_XIRC "set maxrx=%u (rcvd=%u ticks=%lu)\n",
+ maxrx_bytes, bytes_rcvd, duration );
+ #endif
+ }
+ else if( !duration && maxrx_bytes < 22000 ) { /* now much faster*/
+ maxrx_bytes += 2000;
+ if( maxrx_bytes > 22000 )
+ maxrx_bytes = 22000;
+ #ifdef PCMCIA_DEBUG
+ if( pc_debug > 1 )
+ printk(KDBG_XIRC "set maxrx=%u\n", maxrx_bytes );
+ #endif
+ }
+ }
+
+ leave:
+ if( lockup_hack ) {
+ if( int_status != 0xff && (int_status = GetByte(XIRCREG_ISR)) != 0 )
+ goto loop_entry;
+ }
+ SelectPage(saved_page);
+ dev->interrupt = 0;
+ 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 );
+ */
+} /* xirc2ps_interrupt */
+
+/*====================================================================*/
+
+static int
+do_start_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+ local_info_t *lp = dev->priv;
+ ioaddr_t ioaddr = dev->base_addr;
+ int okay;
+ unsigned freespace;
+ unsigned pktlen = skb? skb->len : 0;
+
+ #ifdef PCMCIA_DEBUG
+ if(pc_debug>1 )
+ printk(KDBG_XIRC "do_start_xmit(skb=%p, dev=%p) len=%u\n",
+ skb, dev, pktlen );
+ #endif
+
+ /* Transmitter timeout, serious problems */
+ if( dev->tbusy ) {
+ int tickssofar = jiffies - dev->trans_start;
+
+ if( lp->suspended ) {
+ dev_kfree_skb (skb);
+ dev->trans_start = jiffies;
+ lp->stats.tx_dropped++;
+ return 0;
+ }
+ if( tickssofar < TX_TIMEOUT )
+ return 1;
+
+ printk(KERN_NOTICE "%s: transmit timed out\n", dev->name );
+ lp->stats.tx_errors++;
+ /* reset the card */
+ do_reset(dev,1);
+ dev->trans_start = jiffies;
+ dev->tbusy = 0;
+ }
+
+ if( test_and_set_bit(0, (void*)&dev->tbusy ) ) {
+ printk(KWRN_XIRC "transmitter access conflict\n");
+ dev_kfree_skb (skb);
+ return 0;
+ }
+
+ /* 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 )
+ pktlen = ETH_ZLEN;
+
+ 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;
+ #ifdef PCMCIA_DEBUG
+ if(pc_debug > 2 + ( okay ? 2 : 0) )
+ printk(KERN_DEBUG "%s: avail. tx space=%u%s\n", dev->name, freespace,
+ okay? " (okay)":" (not enough)" );
+ #endif
+ if( !okay ) { /* not enough space */
+ dev->tbusy = 1;
+ return 1; /* 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->trans_start = jiffies;
+ dev->tbusy = 0;
+ lp->stats.tx_bytes += pktlen;
+ return 0;
+}
+
+static struct enet_statistics *
+do_get_stats(struct net_device *dev)
+{
+ local_info_t *lp = dev->priv;
+
+ /* lp->stats.rx_missed_errors = GetByte(?) */
+ return &lp->stats;
+}
+
+/****************
+ * 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)
+{
+ ioaddr_t ioaddr = dev->base_addr;
+ local_info_t *lp = dev->priv;
+ struct dev_mc_list *dmi = dev->mc_list;
+ char *addr;
+ int i,j,k,n;
+
+ SelectPage(k=0x50);
+ for(i=0,j=8,n=0; ; i++, j++) {
+ if( i > 5 ) {
+ if( ++n > 9 )
+ break;
+ i = 0;
+ }
+ if( j > 15 ) {
+ j = 8;
+ k++;
+ SelectPage(k);
+ }
+
+ if( n && n <= dev->mc_count && dmi ) {
+ addr = dmi->dmi_addr;
+ dmi = dmi->next;
+ }
+ else
+ addr = dev->dev_addr;
+
+ if( lp->mohawk )
+ PutByte( j, addr[5-i] );
+ else
+ PutByte( j, addr[i] );
+ }
+ 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)
+{
+ ioaddr_t ioaddr = dev->base_addr;
+
+ SelectPage(0x42);
+ if( dev->flags & IFF_PROMISC ) { /* snoop */
+ PutByte(XIRCREG42_SWC1, 0x06); /* set MPE and PME */
+ }
+ else if( dev->mc_count > 9 || (dev->flags & IFF_ALLMULTI) ) {
+ PutByte(XIRCREG42_SWC1, 0x06); /* set MPE */
+ }
+ else if( dev->mc_count ) { /* the chip can filter 9 addresses perfectly */
+ PutByte(XIRCREG42_SWC1, 0x00);
+ SelectPage(0x40);
+ PutByte(XIRCREG40_CMD0, Offline );
+ set_addresses(dev);
+ SelectPage(0x40);
+ PutByte(XIRCREG40_CMD0, EnableRecv | Online );
+ }
+ else { /* standard usage */
+ PutByte(XIRCREG42_SWC1, 0x00);
+ }
+ SelectPage(0);
+}
+
+/****************
+ * We never need to do anything when a IIps device is "initialized"
+ * by the net software, because we only register already-found cards.
+ */
+static int
+do_init(struct net_device *dev)
+{
+ #ifdef PCMCIA_DEBUG
+ if(pc_debug)
+ printk(KDBG_XIRC "do_init(%p)\n", dev );
+ #endif
+ return 0;
+}
+
+static int
+do_config(struct net_device *dev, struct ifmap *map)
+{
+ local_info_t *local = dev->priv;
+
+ #ifdef PCMCIA_DEBUG
+ if(pc_debug)
+ printk(KDBG_XIRC "do_config(%p)\n", dev );
+ #endif
+
+ if( map->port != 255 && map->port != dev->if_port ) {
+ if( map->port <= 4 ) {
+ if( !map->port ) {
+ local->probe_port = 1;
+ dev->if_port = 1;
+ }
+ else {
+ local->probe_port = 0;
+ dev->if_port = map->port;
+ }
+ printk(KERN_INFO "%s: switching to %s port\n",
+ dev->name, if_names[dev->if_port]);
+ do_reset(dev,1); /* not the fine way :-) */
+ }
+ else
+ return -EINVAL;
+ }
+ #ifdef PCMCIA_DEBUG
+ else if( map->port == dev->if_port && local->mohawk ) {
+ /* kludge to print the mii regsiters */
+ mii_dump(dev);
+ }
+ #endif
+ return 0;
+}
+
+/****************
+ * Open the driver
+ */
+static int
+do_open(struct net_device *dev)
+{
+ local_info_t *lp = dev->priv;
+ dev_link_t *link;
+
+ #ifdef PCMCIA_DEBUG
+ if(pc_debug)
+ printk(KDBG_XIRC "do_open(%p)\n", dev );
+ #endif
+
+ /* Check that the PCMCIA card is still here. */
+ for( link = dev_list; link; link = link->next )
+ if( link->priv == dev )
+ break;
+ /* Physical device present signature. */
+ if( !DEV_OK(link) )
+ return -ENODEV;
+
+ /* okay */
+ link->open++;
+ MOD_INC_USE_COUNT;
+
+ dev->interrupt = 0; dev->tbusy = 0; dev->start = 1;
+ lp->suspended = 0;
+ do_reset(dev,1);
+
+ return 0;
+}
+
+static int
+do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
+{
+ local_info_t *local = dev->priv;
+ ioaddr_t ioaddr = dev->base_addr;
+ u16 *data = (u16 *)&rq->ifr_data;
+
+ #ifdef PCMCIA_DEBUG
+ if(pc_debug > 1)
+ printk(KERN_DEBUG "%s: ioctl(%-.6s, %#04x) %04x %04x %04x %04x\n",
+ dev->name, rq->ifr_ifrn.ifrn_name, cmd,
+ data[0], data[1], data[2], data[3] );
+ #endif
+
+ if( !local->mohawk )
+ return -EOPNOTSUPP;
+
+ switch( cmd ) {
+ case SIOCDEVPRIVATE: /* Get the address of the PHY in use. */
+ data[0] = 0; /* we have only this address */
+ /* fall trough */
+ case SIOCDEVPRIVATE+1: /* Read the specified MII register. */
+ data[3] = mii_rd( ioaddr, data[0] & 0x1f, data[1] & 0x1f);
+ break;
+ case SIOCDEVPRIVATE+2: /* Write the specified MII register */
+ if( !suser() )
+ return -EPERM;
+ mii_wr(ioaddr, data[0] & 0x1f, data[1] & 0x1f, data[2], 16);
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
+ return 0;
+}
+
+static void
+hardreset(struct net_device *dev)
+{
+ local_info_t *local = dev->priv;
+ ioaddr_t ioaddr = dev->base_addr;
+
+ SelectPage(4);
+ udelay(1);
+ PutByte(XIRCREG4_GPR1, 0); /* clear bit 0: power down */
+ busy_loop(HZ/25); /* 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 */
+ busy_loop(HZ/50); /* wait 20 msec */
+}
+
+static void
+do_reset(struct net_device *dev, int full)
+{
+ local_info_t *local = dev->priv;
+ ioaddr_t ioaddr = dev->base_addr;
+ unsigned value;
+
+ #ifdef PCMCIA_DEBUG
+ if(pc_debug)
+ printk(KERN_DEBUG "%s: do_reset(%p,%d)\n",
+ dev? dev->name:"eth?", dev, full );
+ #endif
+
+ hardreset(dev);
+ PutByte(XIRCREG_CR, SoftReset ); /* set */
+ busy_loop(HZ/50); /* wait 20 msec */
+ PutByte(XIRCREG_CR, 0 ); /* clear */
+ busy_loop(HZ/25); /* 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 */
+ busy_loop(HZ/2); /* 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);
+ }
+ busy_loop(HZ/25); /* wait 40 msec to let it complete */
+
+ #ifdef PCMCIA_DEBUG
+ if(pc_debug) {
+ SelectPage(0);
+ value = GetByte(XIRCREG_ESR); /* read the ESR */
+ printk(KERN_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
+ #ifdef PCMCIA_DEBUG
+ if(pc_debug)
+ printk(KERN_DEBUG "%s: ECR is: %#02x\n", dev->name, value);
+ #endif
+
+ 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 ) { /* and use it */
+ SelectPage(2);
+ value = GetByte(XIRCREG2_MSR);
+ value |= 0x08; /* Select MII */
+ PutByte(XIRCREG2_MSR, value);
+ busy_loop(HZ/50); /* wait 20 msec */
+ #ifdef PCMCIA_DEBUG
+ if(pc_debug)
+ printk(KERN_DEBUG "%s: MII selected\n", dev->name);
+ #endif
+ }
+ else {
+ SelectPage(2);
+ PutByte(XIRCREG2_MSR, GetByte(XIRCREG2_MSR) | 0x08);
+ busy_loop(HZ/50);
+ #ifdef PCMCIA_DEBUG
+ if(pc_debug)
+ printk(KERN_DEBUG "%s: MII detected; using 10mbs\n",
+ dev->name);
+ #endif
+ SelectPage(0x42);
+ if( dev->if_port == 2 ) /* enable 10Base2 */
+ PutByte(XIRCREG42_SWC1, 0xC0);
+ else /* enable 10BaseT */
+ PutByte(XIRCREG42_SWC1, 0x80);
+ busy_loop(HZ/25); /* wait 40 msec to let it complete */
+ }
+ }
+ 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 ) {
+ 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 )
+ printk(KERN_INFO "%s: media %s, silicon revision %d\n", dev->name,
+ 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 = dev->priv;
+ ioaddr_t ioaddr = dev->base_addr;
+ unsigned control, status, linkpartner;
+ int i;
+
+ #ifdef PCMCIA_DEBUG
+ if(pc_debug>1) {
+ mii_dump(dev);
+ }
+ #endif
+
+ status = mii_rd(ioaddr, 0, 1 );
+ if( (status & 0xff00) != 0x7800 )
+ return 0; /* No MII */
+
+ 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 ) {
+ printk(KERN_NOTICE "%s can't take PHY out of isolation mode\n",
+ dev->name);
+ local->probe_port = 0;
+ return 0;
+ }
+
+ if( local->probe_port ) {
+ /* according to the DP83840A specs the auto negotation 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++ ) {
+ busy_loop(HZ/10); /* wait 100 msec */
+ status = mii_rd(ioaddr, 0, 1 );
+ if( (status & 0x0020) && (status & 0x0004) )
+ break;
+ }
+
+ if( !(status & 0x0020) ) {
+ printk(KERN_NOTICE "%s: auto negotation failed;"
+ " using 10mbs\n", dev->name );
+ 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 );
+ printk(KERN_INFO "%s: MII link partner: %04x\n", dev->name,
+ linkpartner );
+ if( linkpartner & 0x0080 ) { /* 100BaseTx capability */
+ dev->if_port = 4;
+ }
+ else
+ dev->if_port = 1;
+ }
+ local->probe_port = 0;
+ }
+
+ #ifdef PCMCIA_DEBUG
+ if( pc_debug )
+ mii_dump(dev);
+ #endif
+
+ return 1;
+}
+
+static void
+do_powerdown(struct net_device *dev)
+{
+
+ ioaddr_t ioaddr = dev->base_addr;
+
+ #ifdef PCMCIA_DEBUG
+ if(pc_debug)
+ printk(KDBG_XIRC "do_powerdown(%p)\n", dev );
+ #endif
+
+ SelectPage(4);
+ PutByte(XIRCREG4_GPR1, 0); /* clear bit 0: power down */
+ SelectPage(0);
+}
+
+static int
+do_stop( struct net_device *dev)
+{
+ ioaddr_t ioaddr = dev->base_addr;
+ dev_link_t *link;
+
+ #ifdef PCMCIA_DEBUG
+ if(pc_debug)
+ printk(KDBG_XIRC "do_stop(%p)\n", dev );
+ #endif
+
+ for(link = dev_list; link; link = link->next)
+ if(link->priv == dev)
+ break;
+ if( !link )
+ return -ENODEV;
+
+ #ifdef PCMCIA_DEBUG
+ if(pc_debug)
+ printk(KDBG_XIRC "shutting down\n");
+ #endif
+ dev->tbusy = 1;
+ dev->start = 0;
+
+ 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--; dev->start = 0;
+ if (link->state & DEV_STALE_CONFIG) {
+ link->release.expires = jiffies + HZ/20;
+ link->state |= DEV_RELEASE_PENDING;
+ add_timer(&link->release);
+ }
+
+ MOD_DEC_USE_COUNT;
+
+ return 0;
+}
+
+static int __init
+init_xirc2ps_cs(void)
+{
+ servinfo_t serv;
+
+ printk(KERN_INFO "%s\n", version);
+ if( card_type )
+ printk(KINF_XIRC "option card_type is obsolete\n");
+ if( lockup_hack )
+ printk(KINF_XIRC "lockup hack is enabled\n");
+ CardServices(GetCardServicesInfo, &serv);
+ if( serv.Revision != CS_RELEASE_CODE ) {
+ printk(KNOT_XIRC "Card Services release does not match!\n");
+ return -1;
+ }
+ #ifdef PCMCIA_DEBUG
+ if( pc_debug )
+ printk(KDBG_XIRC "pc_debug=%d\n", pc_debug);
+ #endif
+ register_pccard_driver(&dev_info, &xirc2ps_attach, &xirc2ps_detach);
+ return 0;
+}
+
+static void __exit
+exit_xirc2ps_cs(void)
+{
+ #ifdef PCMCIA_DEBUG
+ if(pc_debug)
+ printk(KDBG_XIRC "unloading\n");
+ #endif
+ unregister_pccard_driver(&dev_info);
+ while( dev_list ) {
+ if( dev_list->state & DEV_CONFIG )
+ xirc2ps_release( (u_long)dev_list );
+ if( dev_list ) /* xirc2ps_release() might already have detached... */
+ xirc2ps_detach( dev_list );
+ }
+}
+
+module_init(init_xirc2ps_cs);
+module_exit(exit_xirc2ps_cs);
+
FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen (who was at: slshen@lbl.gov)