Moved, renamed, and deleted files

The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.

1 files changed, 0 insertions, 2679 deletions

diff --git a/ANDROID_3.4.5/drivers/net/wan/farsync.c b/ANDROID_3.4.5/drivers/net/wan/farsync.c
deleted file mode 100644
index 1a623183..00000000
--- a/ANDROID_3.4.5/drivers/net/wan/farsync.c
+++ /dev/null
@@ -1,2679 +0,0 @@
-/*
- *      FarSync WAN driver for Linux (2.6.x kernel version)
- *
- *      Actually sync driver for X.21, V.35 and V.24 on FarSync T-series cards
- *
- *      Copyright (C) 2001-2004 FarSite Communications Ltd.
- *      www.farsite.co.uk
- *
- *      This program 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.
- *
- *      Author:      R.J.Dunlop    <bob.dunlop@farsite.co.uk>
- *      Maintainer:  Kevin Curtis  <kevin.curtis@farsite.co.uk>
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/version.h>
-#include <linux/pci.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/ioport.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/if.h>
-#include <linux/hdlc.h>
-#include <asm/io.h>
-#include <asm/uaccess.h>
-
-#include "farsync.h"
-
-/*
- *      Module info
- */
-MODULE_AUTHOR("R.J.Dunlop <bob.dunlop@farsite.co.uk>");
-MODULE_DESCRIPTION("FarSync T-Series WAN driver. FarSite Communications Ltd.");
-MODULE_LICENSE("GPL");
-
-/*      Driver configuration and global parameters
- *      ==========================================
- */
-
-/*      Number of ports (per card) and cards supported
- */
-#define FST_MAX_PORTS           4
-#define FST_MAX_CARDS           32
-
-/*      Default parameters for the link
- */
-#define FST_TX_QUEUE_LEN        100	/* At 8Mbps a longer queue length is
-					 * useful */
-#define FST_TXQ_DEPTH           16	/* This one is for the buffering
-					 * of frames on the way down to the card
-					 * so that we can keep the card busy
-					 * and maximise throughput
-					 */
-#define FST_HIGH_WATER_MARK     12	/* Point at which we flow control
-					 * network layer */
-#define FST_LOW_WATER_MARK      8	/* Point at which we remove flow
-					 * control from network layer */
-#define FST_MAX_MTU             8000	/* Huge but possible */
-#define FST_DEF_MTU             1500	/* Common sane value */
-
-#define FST_TX_TIMEOUT          (2*HZ)
-
-#ifdef ARPHRD_RAWHDLC
-#define ARPHRD_MYTYPE   ARPHRD_RAWHDLC	/* Raw frames */
-#else
-#define ARPHRD_MYTYPE   ARPHRD_HDLC	/* Cisco-HDLC (keepalives etc) */
-#endif
-
-/*
- * Modules parameters and associated variables
- */
-static int fst_txq_low = FST_LOW_WATER_MARK;
-static int fst_txq_high = FST_HIGH_WATER_MARK;
-static int fst_max_reads = 7;
-static int fst_excluded_cards = 0;
-static int fst_excluded_list[FST_MAX_CARDS];
-
-module_param(fst_txq_low, int, 0);
-module_param(fst_txq_high, int, 0);
-module_param(fst_max_reads, int, 0);
-module_param(fst_excluded_cards, int, 0);
-module_param_array(fst_excluded_list, int, NULL, 0);
-
-/*      Card shared memory layout
- *      =========================
- */
-#pragma pack(1)
-
-/*      This information is derived in part from the FarSite FarSync Smc.h
- *      file. Unfortunately various name clashes and the non-portability of the
- *      bit field declarations in that file have meant that I have chosen to
- *      recreate the information here.
- *
- *      The SMC (Shared Memory Configuration) has a version number that is
- *      incremented every time there is a significant change. This number can
- *      be used to check that we have not got out of step with the firmware
- *      contained in the .CDE files.
- */
-#define SMC_VERSION 24
-
-#define FST_MEMSIZE 0x100000	/* Size of card memory (1Mb) */
-
-#define SMC_BASE 0x00002000L	/* Base offset of the shared memory window main
-				 * configuration structure */
-#define BFM_BASE 0x00010000L	/* Base offset of the shared memory window DMA
-				 * buffers */
-
-#define LEN_TX_BUFFER 8192	/* Size of packet buffers */
-#define LEN_RX_BUFFER 8192
-
-#define LEN_SMALL_TX_BUFFER 256	/* Size of obsolete buffs used for DOS diags */
-#define LEN_SMALL_RX_BUFFER 256
-
-#define NUM_TX_BUFFER 2		/* Must be power of 2. Fixed by firmware */
-#define NUM_RX_BUFFER 8
-
-/* Interrupt retry time in milliseconds */
-#define INT_RETRY_TIME 2
-
-/*      The Am186CH/CC processors support a SmartDMA mode using circular pools
- *      of buffer descriptors. The structure is almost identical to that used
- *      in the LANCE Ethernet controllers. Details available as PDF from the
- *      AMD web site: http://www.amd.com/products/epd/processors/\
- *                    2.16bitcont/3.am186cxfa/a21914/21914.pdf
- */
-struct txdesc {			/* Transmit descriptor */
-	volatile u16 ladr;	/* Low order address of packet. This is a
-				 * linear address in the Am186 memory space
-				 */
-	volatile u8 hadr;	/* High order address. Low 4 bits only, high 4
-				 * bits must be zero
-				 */
-	volatile u8 bits;	/* Status and config */
-	volatile u16 bcnt;	/* 2s complement of packet size in low 15 bits.
-				 * Transmit terminal count interrupt enable in
-				 * top bit.
-				 */
-	u16 unused;		/* Not used in Tx */
-};
-
-struct rxdesc {			/* Receive descriptor */
-	volatile u16 ladr;	/* Low order address of packet */
-	volatile u8 hadr;	/* High order address */
-	volatile u8 bits;	/* Status and config */
-	volatile u16 bcnt;	/* 2s complement of buffer size in low 15 bits.
-				 * Receive terminal count interrupt enable in
-				 * top bit.
-				 */
-	volatile u16 mcnt;	/* Message byte count (15 bits) */
-};
-
-/* Convert a length into the 15 bit 2's complement */
-/* #define cnv_bcnt(len)   (( ~(len) + 1 ) & 0x7FFF ) */
-/* Since we need to set the high bit to enable the completion interrupt this
- * can be made a lot simpler
- */
-#define cnv_bcnt(len)   (-(len))
-
-/* Status and config bits for the above */
-#define DMA_OWN         0x80	/* SmartDMA owns the descriptor */
-#define TX_STP          0x02	/* Tx: start of packet */
-#define TX_ENP          0x01	/* Tx: end of packet */
-#define RX_ERR          0x40	/* Rx: error (OR of next 4 bits) */
-#define RX_FRAM         0x20	/* Rx: framing error */
-#define RX_OFLO         0x10	/* Rx: overflow error */
-#define RX_CRC          0x08	/* Rx: CRC error */
-#define RX_HBUF         0x04	/* Rx: buffer error */
-#define RX_STP          0x02	/* Rx: start of packet */
-#define RX_ENP          0x01	/* Rx: end of packet */
-
-/* Interrupts from the card are caused by various events which are presented
- * in a circular buffer as several events may be processed on one physical int
- */
-#define MAX_CIRBUFF     32
-
-struct cirbuff {
-	u8 rdindex;		/* read, then increment and wrap */
-	u8 wrindex;		/* write, then increment and wrap */
-	u8 evntbuff[MAX_CIRBUFF];
-};
-
-/* Interrupt event codes.
- * Where appropriate the two low order bits indicate the port number
- */
-#define CTLA_CHG        0x18	/* Control signal changed */
-#define CTLB_CHG        0x19
-#define CTLC_CHG        0x1A
-#define CTLD_CHG        0x1B
-
-#define INIT_CPLT       0x20	/* Initialisation complete */
-#define INIT_FAIL       0x21	/* Initialisation failed */
-
-#define ABTA_SENT       0x24	/* Abort sent */
-#define ABTB_SENT       0x25
-#define ABTC_SENT       0x26
-#define ABTD_SENT       0x27
-
-#define TXA_UNDF        0x28	/* Transmission underflow */
-#define TXB_UNDF        0x29
-#define TXC_UNDF        0x2A
-#define TXD_UNDF        0x2B
-
-#define F56_INT         0x2C
-#define M32_INT         0x2D
-
-#define TE1_ALMA        0x30
-
-/* Port physical configuration. See farsync.h for field values */
-struct port_cfg {
-	u16 lineInterface;	/* Physical interface type */
-	u8 x25op;		/* Unused at present */
-	u8 internalClock;	/* 1 => internal clock, 0 => external */
-	u8 transparentMode;	/* 1 => on, 0 => off */
-	u8 invertClock;		/* 0 => normal, 1 => inverted */
-	u8 padBytes[6];		/* Padding */
-	u32 lineSpeed;		/* Speed in bps */
-};
-
-/* TE1 port physical configuration */
-struct su_config {
-	u32 dataRate;
-	u8 clocking;
-	u8 framing;
-	u8 structure;
-	u8 interface;
-	u8 coding;
-	u8 lineBuildOut;
-	u8 equalizer;
-	u8 transparentMode;
-	u8 loopMode;
-	u8 range;
-	u8 txBufferMode;
-	u8 rxBufferMode;
-	u8 startingSlot;
-	u8 losThreshold;
-	u8 enableIdleCode;
-	u8 idleCode;
-	u8 spare[44];
-};
-
-/* TE1 Status */
-struct su_status {
-	u32 receiveBufferDelay;
-	u32 framingErrorCount;
-	u32 codeViolationCount;
-	u32 crcErrorCount;
-	u32 lineAttenuation;
-	u8 portStarted;
-	u8 lossOfSignal;
-	u8 receiveRemoteAlarm;
-	u8 alarmIndicationSignal;
-	u8 spare[40];
-};
-
-/* Finally sling all the above together into the shared memory structure.
- * Sorry it's a hodge podge of arrays, structures and unused bits, it's been
- * evolving under NT for some time so I guess we're stuck with it.
- * The structure starts at offset SMC_BASE.
- * See farsync.h for some field values.
- */
-struct fst_shared {
-	/* DMA descriptor rings */
-	struct rxdesc rxDescrRing[FST_MAX_PORTS][NUM_RX_BUFFER];
-	struct txdesc txDescrRing[FST_MAX_PORTS][NUM_TX_BUFFER];
-
-	/* Obsolete small buffers */
-	u8 smallRxBuffer[FST_MAX_PORTS][NUM_RX_BUFFER][LEN_SMALL_RX_BUFFER];
-	u8 smallTxBuffer[FST_MAX_PORTS][NUM_TX_BUFFER][LEN_SMALL_TX_BUFFER];
-
-	u8 taskStatus;		/* 0x00 => initialising, 0x01 => running,
-				 * 0xFF => halted
-				 */
-
-	u8 interruptHandshake;	/* Set to 0x01 by adapter to signal interrupt,
-				 * set to 0xEE by host to acknowledge interrupt
-				 */
-
-	u16 smcVersion;		/* Must match SMC_VERSION */
-
-	u32 smcFirmwareVersion;	/* 0xIIVVRRBB where II = product ID, VV = major
-				 * version, RR = revision and BB = build
-				 */
-
-	u16 txa_done;		/* Obsolete completion flags */
-	u16 rxa_done;
-	u16 txb_done;
-	u16 rxb_done;
-	u16 txc_done;
-	u16 rxc_done;
-	u16 txd_done;
-	u16 rxd_done;
-
-	u16 mailbox[4];		/* Diagnostics mailbox. Not used */
-
-	struct cirbuff interruptEvent;	/* interrupt causes */
-
-	u32 v24IpSts[FST_MAX_PORTS];	/* V.24 control input status */
-	u32 v24OpSts[FST_MAX_PORTS];	/* V.24 control output status */
-
-	struct port_cfg portConfig[FST_MAX_PORTS];
-
-	u16 clockStatus[FST_MAX_PORTS];	/* lsb: 0=> present, 1=> absent */
-
-	u16 cableStatus;	/* lsb: 0=> present, 1=> absent */
-
-	u16 txDescrIndex[FST_MAX_PORTS];	/* transmit descriptor ring index */
-	u16 rxDescrIndex[FST_MAX_PORTS];	/* receive descriptor ring index */
-
-	u16 portMailbox[FST_MAX_PORTS][2];	/* command, modifier */
-	u16 cardMailbox[4];	/* Not used */
-
-	/* Number of times the card thinks the host has
-	 * missed an interrupt by not acknowledging
-	 * within 2mS (I guess NT has problems)
-	 */
-	u32 interruptRetryCount;
-
-	/* Driver private data used as an ID. We'll not
-	 * use this as I'd rather keep such things
-	 * in main memory rather than on the PCI bus
-	 */
-	u32 portHandle[FST_MAX_PORTS];
-
-	/* Count of Tx underflows for stats */
-	u32 transmitBufferUnderflow[FST_MAX_PORTS];
-
-	/* Debounced V.24 control input status */
-	u32 v24DebouncedSts[FST_MAX_PORTS];
-
-	/* Adapter debounce timers. Don't touch */
-	u32 ctsTimer[FST_MAX_PORTS];
-	u32 ctsTimerRun[FST_MAX_PORTS];
-	u32 dcdTimer[FST_MAX_PORTS];
-	u32 dcdTimerRun[FST_MAX_PORTS];
-
-	u32 numberOfPorts;	/* Number of ports detected at startup */
-
-	u16 _reserved[64];
-
-	u16 cardMode;		/* Bit-mask to enable features:
-				 * Bit 0: 1 enables LED identify mode
-				 */
-
-	u16 portScheduleOffset;
-
-	struct su_config suConfig;	/* TE1 Bits */
-	struct su_status suStatus;
-
-	u32 endOfSmcSignature;	/* endOfSmcSignature MUST be the last member of
-				 * the structure and marks the end of shared
-				 * memory. Adapter code initializes it as
-				 * END_SIG.
-				 */
-};
-
-/* endOfSmcSignature value */
-#define END_SIG                 0x12345678
-
-/* Mailbox values. (portMailbox) */
-#define NOP             0	/* No operation */
-#define ACK             1	/* Positive acknowledgement to PC driver */
-#define NAK             2	/* Negative acknowledgement to PC driver */
-#define STARTPORT       3	/* Start an HDLC port */
-#define STOPPORT        4	/* Stop an HDLC port */
-#define ABORTTX         5	/* Abort the transmitter for a port */
-#define SETV24O         6	/* Set V24 outputs */
-
-/* PLX Chip Register Offsets */
-#define CNTRL_9052      0x50	/* Control Register */
-#define CNTRL_9054      0x6c	/* Control Register */
-
-#define INTCSR_9052     0x4c	/* Interrupt control/status register */
-#define INTCSR_9054     0x68	/* Interrupt control/status register */
-
-/* 9054 DMA Registers */
-/*
- * Note that we will be using DMA Channel 0 for copying rx data
- * and Channel 1 for copying tx data
- */
-#define DMAMODE0        0x80
-#define DMAPADR0        0x84
-#define DMALADR0        0x88
-#define DMASIZ0         0x8c
-#define DMADPR0         0x90
-#define DMAMODE1        0x94
-#define DMAPADR1        0x98
-#define DMALADR1        0x9c
-#define DMASIZ1         0xa0
-#define DMADPR1         0xa4
-#define DMACSR0         0xa8
-#define DMACSR1         0xa9
-#define DMAARB          0xac
-#define DMATHR          0xb0
-#define DMADAC0         0xb4
-#define DMADAC1         0xb8
-#define DMAMARBR        0xac
-
-#define FST_MIN_DMA_LEN 64
-#define FST_RX_DMA_INT  0x01
-#define FST_TX_DMA_INT  0x02
-#define FST_CARD_INT    0x04
-
-/* Larger buffers are positioned in memory at offset BFM_BASE */
-struct buf_window {
-	u8 txBuffer[FST_MAX_PORTS][NUM_TX_BUFFER][LEN_TX_BUFFER];
-	u8 rxBuffer[FST_MAX_PORTS][NUM_RX_BUFFER][LEN_RX_BUFFER];
-};
-
-/* Calculate offset of a buffer object within the shared memory window */
-#define BUF_OFFSET(X)   (BFM_BASE + offsetof(struct buf_window, X))
-
-#pragma pack()
-
-/*      Device driver private information
- *      =================================
- */
-/*      Per port (line or channel) information
- */
-struct fst_port_info {
-        struct net_device *dev; /* Device struct - must be first */
-	struct fst_card_info *card;	/* Card we're associated with */
-	int index;		/* Port index on the card */
-	int hwif;		/* Line hardware (lineInterface copy) */
-	int run;		/* Port is running */
-	int mode;		/* Normal or FarSync raw */
-	int rxpos;		/* Next Rx buffer to use */
-	int txpos;		/* Next Tx buffer to use */
-	int txipos;		/* Next Tx buffer to check for free */
-	int start;		/* Indication of start/stop to network */
-	/*
-	 * A sixteen entry transmit queue
-	 */
-	int txqs;		/* index to get next buffer to tx */
-	int txqe;		/* index to queue next packet */
-	struct sk_buff *txq[FST_TXQ_DEPTH];	/* The queue */
-	int rxqdepth;
-};
-
-/*      Per card information
- */
-struct fst_card_info {
-	char __iomem *mem;	/* Card memory mapped to kernel space */
-	char __iomem *ctlmem;	/* Control memory for PCI cards */
-	unsigned int phys_mem;	/* Physical memory window address */
-	unsigned int phys_ctlmem;	/* Physical control memory address */
-	unsigned int irq;	/* Interrupt request line number */
-	unsigned int nports;	/* Number of serial ports */
-	unsigned int type;	/* Type index of card */
-	unsigned int state;	/* State of card */
-	spinlock_t card_lock;	/* Lock for SMP access */
-	unsigned short pci_conf;	/* PCI card config in I/O space */
-	/* Per port info */
-	struct fst_port_info ports[FST_MAX_PORTS];
-	struct pci_dev *device;	/* Information about the pci device */
-	int card_no;		/* Inst of the card on the system */
-	int family;		/* TxP or TxU */
-	int dmarx_in_progress;
-	int dmatx_in_progress;
-	unsigned long int_count;
-	unsigned long int_time_ave;
-	void *rx_dma_handle_host;
-	dma_addr_t rx_dma_handle_card;
-	void *tx_dma_handle_host;
-	dma_addr_t tx_dma_handle_card;
-	struct sk_buff *dma_skb_rx;
-	struct fst_port_info *dma_port_rx;
-	struct fst_port_info *dma_port_tx;
-	int dma_len_rx;
-	int dma_len_tx;
-	int dma_txpos;
-	int dma_rxpos;
-};
-
-/* Convert an HDLC device pointer into a port info pointer and similar */
-#define dev_to_port(D)  (dev_to_hdlc(D)->priv)
-#define port_to_dev(P)  ((P)->dev)
-
-
-/*
- *      Shared memory window access macros
- *
- *      We have a nice memory based structure above, which could be directly
- *      mapped on i386 but might not work on other architectures unless we use
- *      the readb,w,l and writeb,w,l macros. Unfortunately these macros take
- *      physical offsets so we have to convert. The only saving grace is that
- *      this should all collapse back to a simple indirection eventually.
- */
-#define WIN_OFFSET(X)   ((long)&(((struct fst_shared *)SMC_BASE)->X))
-
-#define FST_RDB(C,E)    readb ((C)->mem + WIN_OFFSET(E))
-#define FST_RDW(C,E)    readw ((C)->mem + WIN_OFFSET(E))
-#define FST_RDL(C,E)    readl ((C)->mem + WIN_OFFSET(E))
-
-#define FST_WRB(C,E,B)  writeb ((B), (C)->mem + WIN_OFFSET(E))
-#define FST_WRW(C,E,W)  writew ((W), (C)->mem + WIN_OFFSET(E))
-#define FST_WRL(C,E,L)  writel ((L), (C)->mem + WIN_OFFSET(E))
-
-/*
- *      Debug support
- */
-#if FST_DEBUG
-
-static int fst_debug_mask = { FST_DEBUG };
-
-/* Most common debug activity is to print something if the corresponding bit
- * is set in the debug mask. Note: this uses a non-ANSI extension in GCC to
- * support variable numbers of macro parameters. The inverted if prevents us
- * eating someone else's else clause.
- */
-#define dbg(F, fmt, args...)					\
-do {								\
-	if (fst_debug_mask & (F))				\
-		printk(KERN_DEBUG pr_fmt(fmt), ##args);		\
-} while (0)
-#else
-#define dbg(F, fmt, args...)					\
-do {								\
-	if (0)							\
-		printk(KERN_DEBUG pr_fmt(fmt), ##args);		\
-} while (0)
-#endif
-
-/*
- *      PCI ID lookup table
- */
-static DEFINE_PCI_DEVICE_TABLE(fst_pci_dev_id) = {
-	{PCI_VENDOR_ID_FARSITE, PCI_DEVICE_ID_FARSITE_T2P, PCI_ANY_ID, 
-	 PCI_ANY_ID, 0, 0, FST_TYPE_T2P},
-
-	{PCI_VENDOR_ID_FARSITE, PCI_DEVICE_ID_FARSITE_T4P, PCI_ANY_ID, 
-	 PCI_ANY_ID, 0, 0, FST_TYPE_T4P},
-
-	{PCI_VENDOR_ID_FARSITE, PCI_DEVICE_ID_FARSITE_T1U, PCI_ANY_ID, 
-	 PCI_ANY_ID, 0, 0, FST_TYPE_T1U},
-
-	{PCI_VENDOR_ID_FARSITE, PCI_DEVICE_ID_FARSITE_T2U, PCI_ANY_ID, 
-	 PCI_ANY_ID, 0, 0, FST_TYPE_T2U},
-
-	{PCI_VENDOR_ID_FARSITE, PCI_DEVICE_ID_FARSITE_T4U, PCI_ANY_ID, 
-	 PCI_ANY_ID, 0, 0, FST_TYPE_T4U},
-
-	{PCI_VENDOR_ID_FARSITE, PCI_DEVICE_ID_FARSITE_TE1, PCI_ANY_ID, 
-	 PCI_ANY_ID, 0, 0, FST_TYPE_TE1},
-
-	{PCI_VENDOR_ID_FARSITE, PCI_DEVICE_ID_FARSITE_TE1C, PCI_ANY_ID, 
-	 PCI_ANY_ID, 0, 0, FST_TYPE_TE1},
-	{0,}			/* End */
-};
-
-MODULE_DEVICE_TABLE(pci, fst_pci_dev_id);
-
-/*
- *      Device Driver Work Queues
- *
- *      So that we don't spend too much time processing events in the 
- *      Interrupt Service routine, we will declare a work queue per Card 
- *      and make the ISR schedule a task in the queue for later execution.
- *      In the 2.4 Kernel we used to use the immediate queue for BH's
- *      Now that they are gone, tasklets seem to be much better than work 
- *      queues.
- */
-
-static void do_bottom_half_tx(struct fst_card_info *card);
-static void do_bottom_half_rx(struct fst_card_info *card);
-static void fst_process_tx_work_q(unsigned long work_q);
-static void fst_process_int_work_q(unsigned long work_q);
-
-static DECLARE_TASKLET(fst_tx_task, fst_process_tx_work_q, 0);
-static DECLARE_TASKLET(fst_int_task, fst_process_int_work_q, 0);
-
-static struct fst_card_info *fst_card_array[FST_MAX_CARDS];
-static spinlock_t fst_work_q_lock;
-static u64 fst_work_txq;
-static u64 fst_work_intq;
-
-static void
-fst_q_work_item(u64 * queue, int card_index)
-{
-	unsigned long flags;
-	u64 mask;
-
-	/*
-	 * Grab the queue exclusively
-	 */
-	spin_lock_irqsave(&fst_work_q_lock, flags);
-
-	/*
-	 * Making an entry in the queue is simply a matter of setting
-	 * a bit for the card indicating that there is work to do in the
-	 * bottom half for the card.  Note the limitation of 64 cards.
-	 * That ought to be enough
-	 */
-	mask = 1 << card_index;
-	*queue |= mask;
-	spin_unlock_irqrestore(&fst_work_q_lock, flags);
-}
-
-static void
-fst_process_tx_work_q(unsigned long /*void **/work_q)
-{
-	unsigned long flags;
-	u64 work_txq;
-	int i;
-
-	/*
-	 * Grab the queue exclusively
-	 */
-	dbg(DBG_TX, "fst_process_tx_work_q\n");
-	spin_lock_irqsave(&fst_work_q_lock, flags);
-	work_txq = fst_work_txq;
-	fst_work_txq = 0;
-	spin_unlock_irqrestore(&fst_work_q_lock, flags);
-
-	/*
-	 * Call the bottom half for each card with work waiting
-	 */
-	for (i = 0; i < FST_MAX_CARDS; i++) {
-		if (work_txq & 0x01) {
-			if (fst_card_array[i] != NULL) {
-				dbg(DBG_TX, "Calling tx bh for card %d\n", i);
-				do_bottom_half_tx(fst_card_array[i]);
-			}
-		}
-		work_txq = work_txq >> 1;
-	}
-}
-
-static void
-fst_process_int_work_q(unsigned long /*void **/work_q)
-{
-	unsigned long flags;
-	u64 work_intq;
-	int i;
-
-	/*
-	 * Grab the queue exclusively
-	 */
-	dbg(DBG_INTR, "fst_process_int_work_q\n");
-	spin_lock_irqsave(&fst_work_q_lock, flags);
-	work_intq = fst_work_intq;
-	fst_work_intq = 0;
-	spin_unlock_irqrestore(&fst_work_q_lock, flags);
-
-	/*
-	 * Call the bottom half for each card with work waiting
-	 */
-	for (i = 0; i < FST_MAX_CARDS; i++) {
-		if (work_intq & 0x01) {
-			if (fst_card_array[i] != NULL) {
-				dbg(DBG_INTR,
-				    "Calling rx & tx bh for card %d\n", i);
-				do_bottom_half_rx(fst_card_array[i]);
-				do_bottom_half_tx(fst_card_array[i]);
-			}
-		}
-		work_intq = work_intq >> 1;
-	}
-}
-
-/*      Card control functions
- *      ======================
- */
-/*      Place the processor in reset state
- *
- * Used to be a simple write to card control space but a glitch in the latest
- * AMD Am186CH processor means that we now have to do it by asserting and de-
- * asserting the PLX chip PCI Adapter Software Reset. Bit 30 in CNTRL register
- * at offset 9052_CNTRL.  Note the updates for the TXU.
- */
-static inline void
-fst_cpureset(struct fst_card_info *card)
-{
-	unsigned char interrupt_line_register;
-	unsigned long j = jiffies + 1;
-	unsigned int regval;
-
-	if (card->family == FST_FAMILY_TXU) {
-		if (pci_read_config_byte
-		    (card->device, PCI_INTERRUPT_LINE, &interrupt_line_register)) {
-			dbg(DBG_ASS,
-			    "Error in reading interrupt line register\n");
-		}
-		/*
-		 * Assert PLX software reset and Am186 hardware reset
-		 * and then deassert the PLX software reset but 186 still in reset
-		 */
-		outw(0x440f, card->pci_conf + CNTRL_9054 + 2);
-		outw(0x040f, card->pci_conf + CNTRL_9054 + 2);
-		/*
-		 * We are delaying here to allow the 9054 to reset itself
-		 */
-		j = jiffies + 1;
-		while (jiffies < j)
-			/* Do nothing */ ;
-		outw(0x240f, card->pci_conf + CNTRL_9054 + 2);
-		/*
-		 * We are delaying here to allow the 9054 to reload its eeprom
-		 */
-		j = jiffies + 1;
-		while (jiffies < j)
-			/* Do nothing */ ;
-		outw(0x040f, card->pci_conf + CNTRL_9054 + 2);
-
-		if (pci_write_config_byte
-		    (card->device, PCI_INTERRUPT_LINE, interrupt_line_register)) {
-			dbg(DBG_ASS,
-			    "Error in writing interrupt line register\n");
-		}
-
-	} else {
-		regval = inl(card->pci_conf + CNTRL_9052);
-
-		outl(regval | 0x40000000, card->pci_conf + CNTRL_9052);
-		outl(regval & ~0x40000000, card->pci_conf + CNTRL_9052);
-	}
-}
-
-/*      Release the processor from reset
- */
-static inline void
-fst_cpurelease(struct fst_card_info *card)
-{
-	if (card->family == FST_FAMILY_TXU) {
-		/*
-		 * Force posted writes to complete
-		 */
-		(void) readb(card->mem);
-
-		/*
-		 * Release LRESET DO = 1
-		 * Then release Local Hold, DO = 1
-		 */
-		outw(0x040e, card->pci_conf + CNTRL_9054 + 2);
-		outw(0x040f, card->pci_conf + CNTRL_9054 + 2);
-	} else {
-		(void) readb(card->ctlmem);
-	}
-}
-
-/*      Clear the cards interrupt flag
- */
-static inline void
-fst_clear_intr(struct fst_card_info *card)
-{
-	if (card->family == FST_FAMILY_TXU) {
-		(void) readb(card->ctlmem);
-	} else {
-		/* Poke the appropriate PLX chip register (same as enabling interrupts)
-		 */
-		outw(0x0543, card->pci_conf + INTCSR_9052);
-	}
-}
-
-/*      Enable card interrupts
- */
-static inline void
-fst_enable_intr(struct fst_card_info *card)
-{
-	if (card->family == FST_FAMILY_TXU) {
-		outl(0x0f0c0900, card->pci_conf + INTCSR_9054);
-	} else {
-		outw(0x0543, card->pci_conf + INTCSR_9052);
-	}
-}
-
-/*      Disable card interrupts
- */
-static inline void
-fst_disable_intr(struct fst_card_info *card)
-{
-	if (card->family == FST_FAMILY_TXU) {
-		outl(0x00000000, card->pci_conf + INTCSR_9054);
-	} else {
-		outw(0x0000, card->pci_conf + INTCSR_9052);
-	}
-}
-
-/*      Process the result of trying to pass a received frame up the stack
- */
-static void
-fst_process_rx_status(int rx_status, char *name)
-{
-	switch (rx_status) {
-	case NET_RX_SUCCESS:
-		{
-			/*
-			 * Nothing to do here
-			 */
-			break;
-		}
-	case NET_RX_DROP:
-		{
-			dbg(DBG_ASS, "%s: Received packet dropped\n", name);
-			break;
-		}
-	}
-}
-
-/*      Initilaise DMA for PLX 9054
- */
-static inline void
-fst_init_dma(struct fst_card_info *card)
-{
-	/*
-	 * This is only required for the PLX 9054
-	 */
-	if (card->family == FST_FAMILY_TXU) {
-	        pci_set_master(card->device);
-		outl(0x00020441, card->pci_conf + DMAMODE0);
-		outl(0x00020441, card->pci_conf + DMAMODE1);
-		outl(0x0, card->pci_conf + DMATHR);
-	}
-}
-
-/*      Tx dma complete interrupt
- */
-static void
-fst_tx_dma_complete(struct fst_card_info *card, struct fst_port_info *port,
-		    int len, int txpos)
-{
-	struct net_device *dev = port_to_dev(port);
-
-	/*
-	 * Everything is now set, just tell the card to go
-	 */
-	dbg(DBG_TX, "fst_tx_dma_complete\n");
-	FST_WRB(card, txDescrRing[port->index][txpos].bits,
-		DMA_OWN | TX_STP | TX_ENP);
-	dev->stats.tx_packets++;
-	dev->stats.tx_bytes += len;
-	dev->trans_start = jiffies;
-}
-
-/*
- * Mark it for our own raw sockets interface
- */
-static __be16 farsync_type_trans(struct sk_buff *skb, struct net_device *dev)
-{
-	skb->dev = dev;
-	skb_reset_mac_header(skb);
-	skb->pkt_type = PACKET_HOST;
-	return htons(ETH_P_CUST);
-}
-
-/*      Rx dma complete interrupt
- */
-static void
-fst_rx_dma_complete(struct fst_card_info *card, struct fst_port_info *port,
-		    int len, struct sk_buff *skb, int rxp)
-{
-	struct net_device *dev = port_to_dev(port);
-	int pi;
-	int rx_status;
-
-	dbg(DBG_TX, "fst_rx_dma_complete\n");
-	pi = port->index;
-	memcpy(skb_put(skb, len), card->rx_dma_handle_host, len);
-
-	/* Reset buffer descriptor */
-	FST_WRB(card, rxDescrRing[pi][rxp].bits, DMA_OWN);
-
-	/* Update stats */
-	dev->stats.rx_packets++;
-	dev->stats.rx_bytes += len;
-
-	/* Push upstream */
-	dbg(DBG_RX, "Pushing the frame up the stack\n");
-	if (port->mode == FST_RAW)
-		skb->protocol = farsync_type_trans(skb, dev);
-	else
-		skb->protocol = hdlc_type_trans(skb, dev);
-	rx_status = netif_rx(skb);
-	fst_process_rx_status(rx_status, port_to_dev(port)->name);
-	if (rx_status == NET_RX_DROP)
-		dev->stats.rx_dropped++;
-}
-
-/*
- *      Receive a frame through the DMA
- */
-static inline void
-fst_rx_dma(struct fst_card_info *card, dma_addr_t skb,
-	   dma_addr_t mem, int len)
-{
-	/*
-	 * This routine will setup the DMA and start it
-	 */
-
-	dbg(DBG_RX, "In fst_rx_dma %lx %lx %d\n",
-	    (unsigned long) skb, (unsigned long) mem, len);
-	if (card->dmarx_in_progress) {
-		dbg(DBG_ASS, "In fst_rx_dma while dma in progress\n");
-	}
-
-	outl(skb, card->pci_conf + DMAPADR0);	/* Copy to here */
-	outl(mem, card->pci_conf + DMALADR0);	/* from here */
-	outl(len, card->pci_conf + DMASIZ0);	/* for this length */
-	outl(0x00000000c, card->pci_conf + DMADPR0);	/* In this direction */
-
-	/*
-	 * We use the dmarx_in_progress flag to flag the channel as busy
-	 */
-	card->dmarx_in_progress = 1;
-	outb(0x03, card->pci_conf + DMACSR0);	/* Start the transfer */
-}
-
-/*
- *      Send a frame through the DMA
- */
-static inline void
-fst_tx_dma(struct fst_card_info *card, unsigned char *skb,
-	   unsigned char *mem, int len)
-{
-	/*
-	 * This routine will setup the DMA and start it.
-	 */
-
-	dbg(DBG_TX, "In fst_tx_dma %p %p %d\n", skb, mem, len);
-	if (card->dmatx_in_progress) {
-		dbg(DBG_ASS, "In fst_tx_dma while dma in progress\n");
-	}
-
-	outl((unsigned long) skb, card->pci_conf + DMAPADR1);	/* Copy from here */
-	outl((unsigned long) mem, card->pci_conf + DMALADR1);	/* to here */
-	outl(len, card->pci_conf + DMASIZ1);	/* for this length */
-	outl(0x000000004, card->pci_conf + DMADPR1);	/* In this direction */
-
-	/*
-	 * We use the dmatx_in_progress to flag the channel as busy
-	 */
-	card->dmatx_in_progress = 1;
-	outb(0x03, card->pci_conf + DMACSR1);	/* Start the transfer */
-}
-
-/*      Issue a Mailbox command for a port.
- *      Note we issue them on a fire and forget basis, not expecting to see an
- *      error and not waiting for completion.
- */
-static void
-fst_issue_cmd(struct fst_port_info *port, unsigned short cmd)
-{
-	struct fst_card_info *card;
-	unsigned short mbval;
-	unsigned long flags;
-	int safety;
-
-	card = port->card;
-	spin_lock_irqsave(&card->card_lock, flags);
-	mbval = FST_RDW(card, portMailbox[port->index][0]);
-
-	safety = 0;
-	/* Wait for any previous command to complete */
-	while (mbval > NAK) {
-		spin_unlock_irqrestore(&card->card_lock, flags);
-		schedule_timeout_uninterruptible(1);
-		spin_lock_irqsave(&card->card_lock, flags);
-
-		if (++safety > 2000) {
-			pr_err("Mailbox safety timeout\n");
-			break;
-		}
-
-		mbval = FST_RDW(card, portMailbox[port->index][0]);
-	}
-	if (safety > 0) {
-		dbg(DBG_CMD, "Mailbox clear after %d jiffies\n", safety);
-	}
-	if (mbval == NAK) {
-		dbg(DBG_CMD, "issue_cmd: previous command was NAK'd\n");
-	}
-
-	FST_WRW(card, portMailbox[port->index][0], cmd);
-
-	if (cmd == ABORTTX || cmd == STARTPORT) {
-		port->txpos = 0;
-		port->txipos = 0;
-		port->start = 0;
-	}
-
-	spin_unlock_irqrestore(&card->card_lock, flags);
-}
-
-/*      Port output signals control
- */
-static inline void
-fst_op_raise(struct fst_port_info *port, unsigned int outputs)
-{
-	outputs |= FST_RDL(port->card, v24OpSts[port->index]);
-	FST_WRL(port->card, v24OpSts[port->index], outputs);
-
-	if (port->run)
-		fst_issue_cmd(port, SETV24O);
-}
-
-static inline void
-fst_op_lower(struct fst_port_info *port, unsigned int outputs)
-{
-	outputs = ~outputs & FST_RDL(port->card, v24OpSts[port->index]);
-	FST_WRL(port->card, v24OpSts[port->index], outputs);
-
-	if (port->run)
-		fst_issue_cmd(port, SETV24O);
-}
-
-/*
- *      Setup port Rx buffers
- */
-static void
-fst_rx_config(struct fst_port_info *port)
-{
-	int i;
-	int pi;
-	unsigned int offset;
-	unsigned long flags;
-	struct fst_card_info *card;
-
-	pi = port->index;
-	card = port->card;
-	spin_lock_irqsave(&card->card_lock, flags);
-	for (i = 0; i < NUM_RX_BUFFER; i++) {
-		offset = BUF_OFFSET(rxBuffer[pi][i][0]);
-
-		FST_WRW(card, rxDescrRing[pi][i].ladr, (u16) offset);
-		FST_WRB(card, rxDescrRing[pi][i].hadr, (u8) (offset >> 16));
-		FST_WRW(card, rxDescrRing[pi][i].bcnt, cnv_bcnt(LEN_RX_BUFFER));
-		FST_WRW(card, rxDescrRing[pi][i].mcnt, LEN_RX_BUFFER);
-		FST_WRB(card, rxDescrRing[pi][i].bits, DMA_OWN);
-	}
-	port->rxpos = 0;
-	spin_unlock_irqrestore(&card->card_lock, flags);
-}
-
-/*
- *      Setup port Tx buffers
- */
-static void
-fst_tx_config(struct fst_port_info *port)
-{
-	int i;
-	int pi;
-	unsigned int offset;
-	unsigned long flags;
-	struct fst_card_info *card;
-
-	pi = port->index;
-	card = port->card;
-	spin_lock_irqsave(&card->card_lock, flags);
-	for (i = 0; i < NUM_TX_BUFFER; i++) {
-		offset = BUF_OFFSET(txBuffer[pi][i][0]);
-
-		FST_WRW(card, txDescrRing[pi][i].ladr, (u16) offset);
-		FST_WRB(card, txDescrRing[pi][i].hadr, (u8) (offset >> 16));
-		FST_WRW(card, txDescrRing[pi][i].bcnt, 0);
-		FST_WRB(card, txDescrRing[pi][i].bits, 0);
-	}
-	port->txpos = 0;
-	port->txipos = 0;
-	port->start = 0;
-	spin_unlock_irqrestore(&card->card_lock, flags);
-}
-
-/*      TE1 Alarm change interrupt event
- */
-static void
-fst_intr_te1_alarm(struct fst_card_info *card, struct fst_port_info *port)
-{
-	u8 los;
-	u8 rra;
-	u8 ais;
-
-	los = FST_RDB(card, suStatus.lossOfSignal);
-	rra = FST_RDB(card, suStatus.receiveRemoteAlarm);
-	ais = FST_RDB(card, suStatus.alarmIndicationSignal);
-
-	if (los) {
-		/*
-		 * Lost the link
-		 */
-		if (netif_carrier_ok(port_to_dev(port))) {
-			dbg(DBG_INTR, "Net carrier off\n");
-			netif_carrier_off(port_to_dev(port));
-		}
-	} else {
-		/*
-		 * Link available
-		 */
-		if (!netif_carrier_ok(port_to_dev(port))) {
-			dbg(DBG_INTR, "Net carrier on\n");
-			netif_carrier_on(port_to_dev(port));
-		}
-	}
-
-	if (los)
-		dbg(DBG_INTR, "Assert LOS Alarm\n");
-	else
-		dbg(DBG_INTR, "De-assert LOS Alarm\n");
-	if (rra)
-		dbg(DBG_INTR, "Assert RRA Alarm\n");
-	else
-		dbg(DBG_INTR, "De-assert RRA Alarm\n");
-
-	if (ais)
-		dbg(DBG_INTR, "Assert AIS Alarm\n");
-	else
-		dbg(DBG_INTR, "De-assert AIS Alarm\n");
-}
-
-/*      Control signal change interrupt event
- */
-static void
-fst_intr_ctlchg(struct fst_card_info *card, struct fst_port_info *port)
-{
-	int signals;
-
-	signals = FST_RDL(card, v24DebouncedSts[port->index]);
-
-	if (signals & (((port->hwif == X21) || (port->hwif == X21D))
-		       ? IPSTS_INDICATE : IPSTS_DCD)) {
-		if (!netif_carrier_ok(port_to_dev(port))) {
-			dbg(DBG_INTR, "DCD active\n");
-			netif_carrier_on(port_to_dev(port));
-		}
-	} else {
-		if (netif_carrier_ok(port_to_dev(port))) {
-			dbg(DBG_INTR, "DCD lost\n");
-			netif_carrier_off(port_to_dev(port));
-		}
-	}
-}
-
-/*      Log Rx Errors
- */
-static void
-fst_log_rx_error(struct fst_card_info *card, struct fst_port_info *port,
-		 unsigned char dmabits, int rxp, unsigned short len)
-{
-	struct net_device *dev = port_to_dev(port);
-
-	/*
-	 * Increment the appropriate error counter
-	 */
-	dev->stats.rx_errors++;
-	if (dmabits & RX_OFLO) {
-		dev->stats.rx_fifo_errors++;
-		dbg(DBG_ASS, "Rx fifo error on card %d port %d buffer %d\n",
-		    card->card_no, port->index, rxp);
-	}
-	if (dmabits & RX_CRC) {
-		dev->stats.rx_crc_errors++;
-		dbg(DBG_ASS, "Rx crc error on card %d port %d\n",
-		    card->card_no, port->index);
-	}
-	if (dmabits & RX_FRAM) {
-		dev->stats.rx_frame_errors++;
-		dbg(DBG_ASS, "Rx frame error on card %d port %d\n",
-		    card->card_no, port->index);
-	}
-	if (dmabits == (RX_STP | RX_ENP)) {
-		dev->stats.rx_length_errors++;
-		dbg(DBG_ASS, "Rx length error (%d) on card %d port %d\n",
-		    len, card->card_no, port->index);
-	}
-}
-
-/*      Rx Error Recovery
- */
-static void
-fst_recover_rx_error(struct fst_card_info *card, struct fst_port_info *port,
-		     unsigned char dmabits, int rxp, unsigned short len)
-{
-	int i;
-	int pi;
-
-	pi = port->index;
-	/* 
-	 * Discard buffer descriptors until we see the start of the
-	 * next frame.  Note that for long frames this could be in
-	 * a subsequent interrupt. 
-	 */
-	i = 0;
-	while ((dmabits & (DMA_OWN | RX_STP)) == 0) {
-		FST_WRB(card, rxDescrRing[pi][rxp].bits, DMA_OWN);
-		rxp = (rxp+1) % NUM_RX_BUFFER;
-		if (++i > NUM_RX_BUFFER) {
-			dbg(DBG_ASS, "intr_rx: Discarding more bufs"
-			    " than we have\n");
-			break;
-		}
-		dmabits = FST_RDB(card, rxDescrRing[pi][rxp].bits);
-		dbg(DBG_ASS, "DMA Bits of next buffer was %x\n", dmabits);
-	}
-	dbg(DBG_ASS, "There were %d subsequent buffers in error\n", i);
-
-	/* Discard the terminal buffer */
-	if (!(dmabits & DMA_OWN)) {
-		FST_WRB(card, rxDescrRing[pi][rxp].bits, DMA_OWN);
-		rxp = (rxp+1) % NUM_RX_BUFFER;
-	}
-	port->rxpos = rxp;
-	return;
-
-}
-
-/*      Rx complete interrupt
- */
-static void
-fst_intr_rx(struct fst_card_info *card, struct fst_port_info *port)
-{
-	unsigned char dmabits;
-	int pi;
-	int rxp;
-	int rx_status;
-	unsigned short len;
-	struct sk_buff *skb;
-	struct net_device *dev = port_to_dev(port);
-
-	/* Check we have a buffer to process */
-	pi = port->index;
-	rxp = port->rxpos;
-	dmabits = FST_RDB(card, rxDescrRing[pi][rxp].bits);
-	if (dmabits & DMA_OWN) {
-		dbg(DBG_RX | DBG_INTR, "intr_rx: No buffer port %d pos %d\n",
-		    pi, rxp);
-		return;
-	}
-	if (card->dmarx_in_progress) {
-		return;
-	}
-
-	/* Get buffer length */
-	len = FST_RDW(card, rxDescrRing[pi][rxp].mcnt);
-	/* Discard the CRC */
-	len -= 2;
-	if (len == 0) {
-		/*
-		 * This seems to happen on the TE1 interface sometimes
-		 * so throw the frame away and log the event.
-		 */
-		pr_err("Frame received with 0 length. Card %d Port %d\n",
-		       card->card_no, port->index);
-		/* Return descriptor to card */
-		FST_WRB(card, rxDescrRing[pi][rxp].bits, DMA_OWN);
-
-		rxp = (rxp+1) % NUM_RX_BUFFER;
-		port->rxpos = rxp;
-		return;
-	}
-
-	/* Check buffer length and for other errors. We insist on one packet
-	 * in one buffer. This simplifies things greatly and since we've
-	 * allocated 8K it shouldn't be a real world limitation
-	 */
-	dbg(DBG_RX, "intr_rx: %d,%d: flags %x len %d\n", pi, rxp, dmabits, len);
-	if (dmabits != (RX_STP | RX_ENP) || len > LEN_RX_BUFFER - 2) {
-		fst_log_rx_error(card, port, dmabits, rxp, len);
-		fst_recover_rx_error(card, port, dmabits, rxp, len);
-		return;
-	}
-
-	/* Allocate SKB */
-	if ((skb = dev_alloc_skb(len)) == NULL) {
-		dbg(DBG_RX, "intr_rx: can't allocate buffer\n");
-
-		dev->stats.rx_dropped++;
-
-		/* Return descriptor to card */
-		FST_WRB(card, rxDescrRing[pi][rxp].bits, DMA_OWN);
-
-		rxp = (rxp+1) % NUM_RX_BUFFER;
-		port->rxpos = rxp;
-		return;
-	}
-
-	/*
-	 * We know the length we need to receive, len.
-	 * It's not worth using the DMA for reads of less than
-	 * FST_MIN_DMA_LEN
-	 */
-
-	if ((len < FST_MIN_DMA_LEN) || (card->family == FST_FAMILY_TXP)) {
-		memcpy_fromio(skb_put(skb, len),
-			      card->mem + BUF_OFFSET(rxBuffer[pi][rxp][0]),
-			      len);
-
-		/* Reset buffer descriptor */
-		FST_WRB(card, rxDescrRing[pi][rxp].bits, DMA_OWN);
-
-		/* Update stats */
-		dev->stats.rx_packets++;
-		dev->stats.rx_bytes += len;
-
-		/* Push upstream */
-		dbg(DBG_RX, "Pushing frame up the stack\n");
-		if (port->mode == FST_RAW)
-			skb->protocol = farsync_type_trans(skb, dev);
-		else
-			skb->protocol = hdlc_type_trans(skb, dev);
-		rx_status = netif_rx(skb);
-		fst_process_rx_status(rx_status, port_to_dev(port)->name);
-		if (rx_status == NET_RX_DROP)
-			dev->stats.rx_dropped++;
-	} else {
-		card->dma_skb_rx = skb;
-		card->dma_port_rx = port;
-		card->dma_len_rx = len;
-		card->dma_rxpos = rxp;
-		fst_rx_dma(card, card->rx_dma_handle_card,
-			   BUF_OFFSET(rxBuffer[pi][rxp][0]), len);
-	}
-	if (rxp != port->rxpos) {
-		dbg(DBG_ASS, "About to increment rxpos by more than 1\n");
-		dbg(DBG_ASS, "rxp = %d rxpos = %d\n", rxp, port->rxpos);
-	}
-	rxp = (rxp+1) % NUM_RX_BUFFER;
-	port->rxpos = rxp;
-}
-
-/*
- *      The bottom halfs to the ISR
- *
- */
-
-static void
-do_bottom_half_tx(struct fst_card_info *card)
-{
-	struct fst_port_info *port;
-	int pi;
-	int txq_length;
-	struct sk_buff *skb;
-	unsigned long flags;
-	struct net_device *dev;
-
-	/*
-	 *  Find a free buffer for the transmit
-	 *  Step through each port on this card
-	 */
-
-	dbg(DBG_TX, "do_bottom_half_tx\n");
-	for (pi = 0, port = card->ports; pi < card->nports; pi++, port++) {
-		if (!port->run)
-			continue;
-
-		dev = port_to_dev(port);
-		while (!(FST_RDB(card, txDescrRing[pi][port->txpos].bits) &
-			 DMA_OWN) &&
-		       !(card->dmatx_in_progress)) {
-			/*
-			 * There doesn't seem to be a txdone event per-se
-			 * We seem to have to deduce it, by checking the DMA_OWN
-			 * bit on the next buffer we think we can use
-			 */
-			spin_lock_irqsave(&card->card_lock, flags);
-			if ((txq_length = port->txqe - port->txqs) < 0) {
-				/*
-				 * This is the case where one has wrapped and the
-				 * maths gives us a negative number
-				 */
-				txq_length = txq_length + FST_TXQ_DEPTH;
-			}
-			spin_unlock_irqrestore(&card->card_lock, flags);
-			if (txq_length > 0) {
-				/*
-				 * There is something to send
-				 */
-				spin_lock_irqsave(&card->card_lock, flags);
-				skb = port->txq[port->txqs];
-				port->txqs++;
-				if (port->txqs == FST_TXQ_DEPTH) {
-					port->txqs = 0;
-				}
-				spin_unlock_irqrestore(&card->card_lock, flags);
-				/*
-				 * copy the data and set the required indicators on the
-				 * card.
-				 */
-				FST_WRW(card, txDescrRing[pi][port->txpos].bcnt,
-					cnv_bcnt(skb->len));
-				if ((skb->len < FST_MIN_DMA_LEN) ||
-				    (card->family == FST_FAMILY_TXP)) {
-					/* Enqueue the packet with normal io */
-					memcpy_toio(card->mem +
-						    BUF_OFFSET(txBuffer[pi]
-							       [port->
-								txpos][0]),
-						    skb->data, skb->len);
-					FST_WRB(card,
-						txDescrRing[pi][port->txpos].
-						bits,
-						DMA_OWN | TX_STP | TX_ENP);
-					dev->stats.tx_packets++;
-					dev->stats.tx_bytes += skb->len;
-					dev->trans_start = jiffies;
-				} else {
-					/* Or do it through dma */
-					memcpy(card->tx_dma_handle_host,
-					       skb->data, skb->len);
-					card->dma_port_tx = port;
-					card->dma_len_tx = skb->len;
-					card->dma_txpos = port->txpos;
-					fst_tx_dma(card,
-						   (char *) card->
-						   tx_dma_handle_card,
-						   (char *)
-						   BUF_OFFSET(txBuffer[pi]
-							      [port->txpos][0]),
-						   skb->len);
-				}
-				if (++port->txpos >= NUM_TX_BUFFER)
-					port->txpos = 0;
-				/*
-				 * If we have flow control on, can we now release it?
-				 */
-				if (port->start) {
-					if (txq_length < fst_txq_low) {
-						netif_wake_queue(port_to_dev
-								 (port));
-						port->start = 0;
-					}
-				}
-				dev_kfree_skb(skb);
-			} else {
-				/*
-				 * Nothing to send so break out of the while loop
-				 */
-				break;
-			}
-		}
-	}
-}
-
-static void
-do_bottom_half_rx(struct fst_card_info *card)
-{
-	struct fst_port_info *port;
-	int pi;
-	int rx_count = 0;
-
-	/* Check for rx completions on all ports on this card */
-	dbg(DBG_RX, "do_bottom_half_rx\n");
-	for (pi = 0, port = card->ports; pi < card->nports; pi++, port++) {
-		if (!port->run)
-			continue;
-
-		while (!(FST_RDB(card, rxDescrRing[pi][port->rxpos].bits)
-			 & DMA_OWN) && !(card->dmarx_in_progress)) {
-			if (rx_count > fst_max_reads) {
-				/*
-				 * Don't spend forever in receive processing
-				 * Schedule another event
-				 */
-				fst_q_work_item(&fst_work_intq, card->card_no);
-				tasklet_schedule(&fst_int_task);
-				break;	/* Leave the loop */
-			}
-			fst_intr_rx(card, port);
-			rx_count++;
-		}
-	}
-}
-
-/*
- *      The interrupt service routine
- *      Dev_id is our fst_card_info pointer
- */
-static irqreturn_t
-fst_intr(int dummy, void *dev_id)
-{
-	struct fst_card_info *card = dev_id;
-	struct fst_port_info *port;
-	int rdidx;		/* Event buffer indices */
-	int wridx;
-	int event;		/* Actual event for processing */
-	unsigned int dma_intcsr = 0;
-	unsigned int do_card_interrupt;
-	unsigned int int_retry_count;
-
-	/*
-	 * Check to see if the interrupt was for this card
-	 * return if not
-	 * Note that the call to clear the interrupt is important
-	 */
-	dbg(DBG_INTR, "intr: %d %p\n", card->irq, card);
-	if (card->state != FST_RUNNING) {
-		pr_err("Interrupt received for card %d in a non running state (%d)\n",
-		       card->card_no, card->state);
-
-		/* 
-		 * It is possible to really be running, i.e. we have re-loaded
-		 * a running card
-		 * Clear and reprime the interrupt source 
-		 */
-		fst_clear_intr(card);
-		return IRQ_HANDLED;
-	}
-
-	/* Clear and reprime the interrupt source */
-	fst_clear_intr(card);
-
-	/*
-	 * Is the interrupt for this card (handshake == 1)
-	 */
-	do_card_interrupt = 0;
-	if (FST_RDB(card, interruptHandshake) == 1) {
-		do_card_interrupt += FST_CARD_INT;
-		/* Set the software acknowledge */
-		FST_WRB(card, interruptHandshake, 0xEE);
-	}
-	if (card->family == FST_FAMILY_TXU) {
-		/*
-		 * Is it a DMA Interrupt
-		 */
-		dma_intcsr = inl(card->pci_conf + INTCSR_9054);
-		if (dma_intcsr & 0x00200000) {
-			/*
-			 * DMA Channel 0 (Rx transfer complete)
-			 */
-			dbg(DBG_RX, "DMA Rx xfer complete\n");
-			outb(0x8, card->pci_conf + DMACSR0);
-			fst_rx_dma_complete(card, card->dma_port_rx,
-					    card->dma_len_rx, card->dma_skb_rx,
-					    card->dma_rxpos);
-			card->dmarx_in_progress = 0;
-			do_card_interrupt += FST_RX_DMA_INT;
-		}
-		if (dma_intcsr & 0x00400000) {
-			/*
-			 * DMA Channel 1 (Tx transfer complete)
-			 */
-			dbg(DBG_TX, "DMA Tx xfer complete\n");
-			outb(0x8, card->pci_conf + DMACSR1);
-			fst_tx_dma_complete(card, card->dma_port_tx,
-					    card->dma_len_tx, card->dma_txpos);
-			card->dmatx_in_progress = 0;
-			do_card_interrupt += FST_TX_DMA_INT;
-		}
-	}
-
-	/*
-	 * Have we been missing Interrupts
-	 */
-	int_retry_count = FST_RDL(card, interruptRetryCount);
-	if (int_retry_count) {
-		dbg(DBG_ASS, "Card %d int_retry_count is  %d\n",
-		    card->card_no, int_retry_count);
-		FST_WRL(card, interruptRetryCount, 0);
-	}
-
-	if (!do_card_interrupt) {
-		return IRQ_HANDLED;
-	}
-
-	/* Scehdule the bottom half of the ISR */
-	fst_q_work_item(&fst_work_intq, card->card_no);
-	tasklet_schedule(&fst_int_task);
-
-	/* Drain the event queue */
-	rdidx = FST_RDB(card, interruptEvent.rdindex) & 0x1f;
-	wridx = FST_RDB(card, interruptEvent.wrindex) & 0x1f;
-	while (rdidx != wridx) {
-		event = FST_RDB(card, interruptEvent.evntbuff[rdidx]);
-		port = &card->ports[event & 0x03];
-
-		dbg(DBG_INTR, "Processing Interrupt event: %x\n", event);
-
-		switch (event) {
-		case TE1_ALMA:
-			dbg(DBG_INTR, "TE1 Alarm intr\n");
-			if (port->run)
-				fst_intr_te1_alarm(card, port);
-			break;
-
-		case CTLA_CHG:
-		case CTLB_CHG:
-		case CTLC_CHG:
-		case CTLD_CHG:
-			if (port->run)
-				fst_intr_ctlchg(card, port);
-			break;
-
-		case ABTA_SENT:
-		case ABTB_SENT:
-		case ABTC_SENT:
-		case ABTD_SENT:
-			dbg(DBG_TX, "Abort complete port %d\n", port->index);
-			break;
-
-		case TXA_UNDF:
-		case TXB_UNDF:
-		case TXC_UNDF:
-		case TXD_UNDF:
-			/* Difficult to see how we'd get this given that we
-			 * always load up the entire packet for DMA.
-			 */
-			dbg(DBG_TX, "Tx underflow port %d\n", port->index);
-			port_to_dev(port)->stats.tx_errors++;
-			port_to_dev(port)->stats.tx_fifo_errors++;
-			dbg(DBG_ASS, "Tx underflow on card %d port %d\n",
-			    card->card_no, port->index);
-			break;
-
-		case INIT_CPLT:
-			dbg(DBG_INIT, "Card init OK intr\n");
-			break;
-
-		case INIT_FAIL:
-			dbg(DBG_INIT, "Card init FAILED intr\n");
-			card->state = FST_IFAILED;
-			break;
-
-		default:
-			pr_err("intr: unknown card event %d. ignored\n", event);
-			break;
-		}
-
-		/* Bump and wrap the index */
-		if (++rdidx >= MAX_CIRBUFF)
-			rdidx = 0;
-	}
-	FST_WRB(card, interruptEvent.rdindex, rdidx);
-        return IRQ_HANDLED;
-}
-
-/*      Check that the shared memory configuration is one that we can handle
- *      and that some basic parameters are correct
- */
-static void
-check_started_ok(struct fst_card_info *card)
-{
-	int i;
-
-	/* Check structure version and end marker */
-	if (FST_RDW(card, smcVersion) != SMC_VERSION) {
-		pr_err("Bad shared memory version %d expected %d\n",
-		       FST_RDW(card, smcVersion), SMC_VERSION);
-		card->state = FST_BADVERSION;
-		return;
-	}
-	if (FST_RDL(card, endOfSmcSignature) != END_SIG) {
-		pr_err("Missing shared memory signature\n");
-		card->state = FST_BADVERSION;
-		return;
-	}
-	/* Firmware status flag, 0x00 = initialising, 0x01 = OK, 0xFF = fail */
-	if ((i = FST_RDB(card, taskStatus)) == 0x01) {
-		card->state = FST_RUNNING;
-	} else if (i == 0xFF) {
-		pr_err("Firmware initialisation failed. Card halted\n");
-		card->state = FST_HALTED;
-		return;
-	} else if (i != 0x00) {
-		pr_err("Unknown firmware status 0x%x\n", i);
-		card->state = FST_HALTED;
-		return;
-	}
-
-	/* Finally check the number of ports reported by firmware against the
-	 * number we assumed at card detection. Should never happen with
-	 * existing firmware etc so we just report it for the moment.
-	 */
-	if (FST_RDL(card, numberOfPorts) != card->nports) {
-		pr_warn("Port count mismatch on card %d.  Firmware thinks %d we say %d\n",
-			card->card_no,
-			FST_RDL(card, numberOfPorts), card->nports);
-	}
-}
-
-static int
-set_conf_from_info(struct fst_card_info *card, struct fst_port_info *port,
-		   struct fstioc_info *info)
-{
-	int err;
-	unsigned char my_framing;
-
-	/* Set things according to the user set valid flags 
-	 * Several of the old options have been invalidated/replaced by the 
-	 * generic hdlc package.
-	 */
-	err = 0;
-	if (info->valid & FSTVAL_PROTO) {
-		if (info->proto == FST_RAW)
-			port->mode = FST_RAW;
-		else
-			port->mode = FST_GEN_HDLC;
-	}
-
-	if (info->valid & FSTVAL_CABLE)
-		err = -EINVAL;
-
-	if (info->valid & FSTVAL_SPEED)
-		err = -EINVAL;
-
-	if (info->valid & FSTVAL_PHASE)
-		FST_WRB(card, portConfig[port->index].invertClock,
-			info->invertClock);
-	if (info->valid & FSTVAL_MODE)
-		FST_WRW(card, cardMode, info->cardMode);
-	if (info->valid & FSTVAL_TE1) {
-		FST_WRL(card, suConfig.dataRate, info->lineSpeed);
-		FST_WRB(card, suConfig.clocking, info->clockSource);
-		my_framing = FRAMING_E1;
-		if (info->framing == E1)
-			my_framing = FRAMING_E1;
-		if (info->framing == T1)
-			my_framing = FRAMING_T1;
-		if (info->framing == J1)
-			my_framing = FRAMING_J1;
-		FST_WRB(card, suConfig.framing, my_framing);
-		FST_WRB(card, suConfig.structure, info->structure);
-		FST_WRB(card, suConfig.interface, info->interface);
-		FST_WRB(card, suConfig.coding, info->coding);
-		FST_WRB(card, suConfig.lineBuildOut, info->lineBuildOut);
-		FST_WRB(card, suConfig.equalizer, info->equalizer);
-		FST_WRB(card, suConfig.transparentMode, info->transparentMode);
-		FST_WRB(card, suConfig.loopMode, info->loopMode);
-		FST_WRB(card, suConfig.range, info->range);
-		FST_WRB(card, suConfig.txBufferMode, info->txBufferMode);
-		FST_WRB(card, suConfig.rxBufferMode, info->rxBufferMode);
-		FST_WRB(card, suConfig.startingSlot, info->startingSlot);
-		FST_WRB(card, suConfig.losThreshold, info->losThreshold);
-		if (info->idleCode)
-			FST_WRB(card, suConfig.enableIdleCode, 1);
-		else
-			FST_WRB(card, suConfig.enableIdleCode, 0);
-		FST_WRB(card, suConfig.idleCode, info->idleCode);
-#if FST_DEBUG
-		if (info->valid & FSTVAL_TE1) {
-			printk("Setting TE1 data\n");
-			printk("Line Speed = %d\n", info->lineSpeed);
-			printk("Start slot = %d\n", info->startingSlot);
-			printk("Clock source = %d\n", info->clockSource);
-			printk("Framing = %d\n", my_framing);
-			printk("Structure = %d\n", info->structure);
-			printk("interface = %d\n", info->interface);
-			printk("Coding = %d\n", info->coding);
-			printk("Line build out = %d\n", info->lineBuildOut);
-			printk("Equaliser = %d\n", info->equalizer);
-			printk("Transparent mode = %d\n",
-			       info->transparentMode);
-			printk("Loop mode = %d\n", info->loopMode);
-			printk("Range = %d\n", info->range);
-			printk("Tx Buffer mode = %d\n", info->txBufferMode);
-			printk("Rx Buffer mode = %d\n", info->rxBufferMode);
-			printk("LOS Threshold = %d\n", info->losThreshold);
-			printk("Idle Code = %d\n", info->idleCode);
-		}
-#endif
-	}
-#if FST_DEBUG
-	if (info->valid & FSTVAL_DEBUG) {
-		fst_debug_mask = info->debug;
-	}
-#endif
-
-	return err;
-}
-
-static void
-gather_conf_info(struct fst_card_info *card, struct fst_port_info *port,
-		 struct fstioc_info *info)
-{
-	int i;
-
-	memset(info, 0, sizeof (struct fstioc_info));
-
-	i = port->index;
-	info->kernelVersion = LINUX_VERSION_CODE;
-	info->nports = card->nports;
-	info->type = card->type;
-	info->state = card->state;
-	info->proto = FST_GEN_HDLC;
-	info->index = i;
-#if FST_DEBUG
-	info->debug = fst_debug_mask;
-#endif
-
-	/* Only mark information as valid if card is running.
-	 * Copy the data anyway in case it is useful for diagnostics
-	 */
-	info->valid = ((card->state == FST_RUNNING) ? FSTVAL_ALL : FSTVAL_CARD)
-#if FST_DEBUG
-	    | FSTVAL_DEBUG
-#endif
-	    ;
-
-	info->lineInterface = FST_RDW(card, portConfig[i].lineInterface);
-	info->internalClock = FST_RDB(card, portConfig[i].internalClock);
-	info->lineSpeed = FST_RDL(card, portConfig[i].lineSpeed);
-	info->invertClock = FST_RDB(card, portConfig[i].invertClock);
-	info->v24IpSts = FST_RDL(card, v24IpSts[i]);
-	info->v24OpSts = FST_RDL(card, v24OpSts[i]);
-	info->clockStatus = FST_RDW(card, clockStatus[i]);
-	info->cableStatus = FST_RDW(card, cableStatus);
-	info->cardMode = FST_RDW(card, cardMode);
-	info->smcFirmwareVersion = FST_RDL(card, smcFirmwareVersion);
-
-	/*
-	 * The T2U can report cable presence for both A or B
-	 * in bits 0 and 1 of cableStatus.  See which port we are and 
-	 * do the mapping.
-	 */
-	if (card->family == FST_FAMILY_TXU) {
-		if (port->index == 0) {
-			/*
-			 * Port A
-			 */
-			info->cableStatus = info->cableStatus & 1;
-		} else {
-			/*
-			 * Port B
-			 */
-			info->cableStatus = info->cableStatus >> 1;
-			info->cableStatus = info->cableStatus & 1;
-		}
-	}
-	/*
-	 * Some additional bits if we are TE1
-	 */
-	if (card->type == FST_TYPE_TE1) {
-		info->lineSpeed = FST_RDL(card, suConfig.dataRate);
-		info->clockSource = FST_RDB(card, suConfig.clocking);
-		info->framing = FST_RDB(card, suConfig.framing);
-		info->structure = FST_RDB(card, suConfig.structure);
-		info->interface = FST_RDB(card, suConfig.interface);
-		info->coding = FST_RDB(card, suConfig.coding);
-		info->lineBuildOut = FST_RDB(card, suConfig.lineBuildOut);
-		info->equalizer = FST_RDB(card, suConfig.equalizer);
-		info->loopMode = FST_RDB(card, suConfig.loopMode);
-		info->range = FST_RDB(card, suConfig.range);
-		info->txBufferMode = FST_RDB(card, suConfig.txBufferMode);
-		info->rxBufferMode = FST_RDB(card, suConfig.rxBufferMode);
-		info->startingSlot = FST_RDB(card, suConfig.startingSlot);
-		info->losThreshold = FST_RDB(card, suConfig.losThreshold);
-		if (FST_RDB(card, suConfig.enableIdleCode))
-			info->idleCode = FST_RDB(card, suConfig.idleCode);
-		else
-			info->idleCode = 0;
-		info->receiveBufferDelay =
-		    FST_RDL(card, suStatus.receiveBufferDelay);
-		info->framingErrorCount =
-		    FST_RDL(card, suStatus.framingErrorCount);
-		info->codeViolationCount =
-		    FST_RDL(card, suStatus.codeViolationCount);
-		info->crcErrorCount = FST_RDL(card, suStatus.crcErrorCount);
-		info->lineAttenuation = FST_RDL(card, suStatus.lineAttenuation);
-		info->lossOfSignal = FST_RDB(card, suStatus.lossOfSignal);
-		info->receiveRemoteAlarm =
-		    FST_RDB(card, suStatus.receiveRemoteAlarm);
-		info->alarmIndicationSignal =
-		    FST_RDB(card, suStatus.alarmIndicationSignal);
-	}
-}
-
-static int
-fst_set_iface(struct fst_card_info *card, struct fst_port_info *port,
-	      struct ifreq *ifr)
-{
-	sync_serial_settings sync;
-	int i;
-
-	if (ifr->ifr_settings.size != sizeof (sync)) {
-		return -ENOMEM;
-	}
-
-	if (copy_from_user
-	    (&sync, ifr->ifr_settings.ifs_ifsu.sync, sizeof (sync))) {
-		return -EFAULT;
-	}
-
-	if (sync.loopback)
-		return -EINVAL;
-
-	i = port->index;
-
-	switch (ifr->ifr_settings.type) {
-	case IF_IFACE_V35:
-		FST_WRW(card, portConfig[i].lineInterface, V35);
-		port->hwif = V35;
-		break;
-
-	case IF_IFACE_V24:
-		FST_WRW(card, portConfig[i].lineInterface, V24);
-		port->hwif = V24;
-		break;
-
-	case IF_IFACE_X21:
-		FST_WRW(card, portConfig[i].lineInterface, X21);
-		port->hwif = X21;
-		break;
-
-	case IF_IFACE_X21D:
-		FST_WRW(card, portConfig[i].lineInterface, X21D);
-		port->hwif = X21D;
-		break;
-
-	case IF_IFACE_T1:
-		FST_WRW(card, portConfig[i].lineInterface, T1);
-		port->hwif = T1;
-		break;
-
-	case IF_IFACE_E1:
-		FST_WRW(card, portConfig[i].lineInterface, E1);
-		port->hwif = E1;
-		break;
-
-	case IF_IFACE_SYNC_SERIAL:
-		break;
-
-	default:
-		return -EINVAL;
-	}
-
-	switch (sync.clock_type) {
-	case CLOCK_EXT:
-		FST_WRB(card, portConfig[i].internalClock, EXTCLK);
-		break;
-
-	case CLOCK_INT:
-		FST_WRB(card, portConfig[i].internalClock, INTCLK);
-		break;
-
-	default:
-		return -EINVAL;
-	}
-	FST_WRL(card, portConfig[i].lineSpeed, sync.clock_rate);
-	return 0;
-}
-
-static int
-fst_get_iface(struct fst_card_info *card, struct fst_port_info *port,
-	      struct ifreq *ifr)
-{
-	sync_serial_settings sync;
-	int i;
-
-	/* First check what line type is set, we'll default to reporting X.21
-	 * if nothing is set as IF_IFACE_SYNC_SERIAL implies it can't be
-	 * changed
-	 */
-	switch (port->hwif) {
-	case E1:
-		ifr->ifr_settings.type = IF_IFACE_E1;
-		break;
-	case T1:
-		ifr->ifr_settings.type = IF_IFACE_T1;
-		break;
-	case V35:
-		ifr->ifr_settings.type = IF_IFACE_V35;
-		break;
-	case V24:
-		ifr->ifr_settings.type = IF_IFACE_V24;
-		break;
-	case X21D:
-		ifr->ifr_settings.type = IF_IFACE_X21D;
-		break;
-	case X21:
-	default:
-		ifr->ifr_settings.type = IF_IFACE_X21;
-		break;
-	}
-	if (ifr->ifr_settings.size == 0) {
-		return 0;	/* only type requested */
-	}
-	if (ifr->ifr_settings.size < sizeof (sync)) {
-		return -ENOMEM;
-	}
-
-	i = port->index;
-	sync.clock_rate = FST_RDL(card, portConfig[i].lineSpeed);
-	/* Lucky card and linux use same encoding here */
-	sync.clock_type = FST_RDB(card, portConfig[i].internalClock) ==
-	    INTCLK ? CLOCK_INT : CLOCK_EXT;
-	sync.loopback = 0;
-
-	if (copy_to_user(ifr->ifr_settings.ifs_ifsu.sync, &sync, sizeof (sync))) {
-		return -EFAULT;
-	}
-
-	ifr->ifr_settings.size = sizeof (sync);
-	return 0;
-}
-
-static int
-fst_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
-{
-	struct fst_card_info *card;
-	struct fst_port_info *port;
-	struct fstioc_write wrthdr;
-	struct fstioc_info info;
-	unsigned long flags;
-	void *buf;
-
-	dbg(DBG_IOCTL, "ioctl: %x, %p\n", cmd, ifr->ifr_data);
-
-	port = dev_to_port(dev);
-	card = port->card;
-
-	if (!capable(CAP_NET_ADMIN))
-		return -EPERM;
-
-	switch (cmd) {
-	case FSTCPURESET:
-		fst_cpureset(card);
-		card->state = FST_RESET;
-		return 0;
-
-	case FSTCPURELEASE:
-		fst_cpurelease(card);
-		card->state = FST_STARTING;
-		return 0;
-
-	case FSTWRITE:		/* Code write (download) */
-
-		/* First copy in the header with the length and offset of data
-		 * to write
-		 */
-		if (ifr->ifr_data == NULL) {
-			return -EINVAL;
-		}
-		if (copy_from_user(&wrthdr, ifr->ifr_data,
-				   sizeof (struct fstioc_write))) {
-			return -EFAULT;
-		}
-
-		/* Sanity check the parameters. We don't support partial writes
-		 * when going over the top
-		 */
-		if (wrthdr.size > FST_MEMSIZE || wrthdr.offset > FST_MEMSIZE ||
-		    wrthdr.size + wrthdr.offset > FST_MEMSIZE) {
-			return -ENXIO;
-		}
-
-		/* Now copy the data to the card. */
-
-		buf = memdup_user(ifr->ifr_data + sizeof(struct fstioc_write),
-				  wrthdr.size);
-		if (IS_ERR(buf))
-			return PTR_ERR(buf);
-
-		memcpy_toio(card->mem + wrthdr.offset, buf, wrthdr.size);
-		kfree(buf);
-
-		/* Writes to the memory of a card in the reset state constitute
-		 * a download
-		 */
-		if (card->state == FST_RESET) {
-			card->state = FST_DOWNLOAD;
-		}
-		return 0;
-
-	case FSTGETCONF:
-
-		/* If card has just been started check the shared memory config
-		 * version and marker
-		 */
-		if (card->state == FST_STARTING) {
-			check_started_ok(card);
-
-			/* If everything checked out enable card interrupts */
-			if (card->state == FST_RUNNING) {
-				spin_lock_irqsave(&card->card_lock, flags);
-				fst_enable_intr(card);
-				FST_WRB(card, interruptHandshake, 0xEE);
-				spin_unlock_irqrestore(&card->card_lock, flags);
-			}
-		}
-
-		if (ifr->ifr_data == NULL) {
-			return -EINVAL;
-		}
-
-		gather_conf_info(card, port, &info);
-
-		if (copy_to_user(ifr->ifr_data, &info, sizeof (info))) {
-			return -EFAULT;
-		}
-		return 0;
-
-	case FSTSETCONF:
-
-		/*
-		 * Most of the settings have been moved to the generic ioctls
-		 * this just covers debug and board ident now
-		 */
-
-		if (card->state != FST_RUNNING) {
-			pr_err("Attempt to configure card %d in non-running state (%d)\n",
-			       card->card_no, card->state);
-			return -EIO;
-		}
-		if (copy_from_user(&info, ifr->ifr_data, sizeof (info))) {
-			return -EFAULT;
-		}
-
-		return set_conf_from_info(card, port, &info);
-
-	case SIOCWANDEV:
-		switch (ifr->ifr_settings.type) {
-		case IF_GET_IFACE:
-			return fst_get_iface(card, port, ifr);
-
-		case IF_IFACE_SYNC_SERIAL:
-		case IF_IFACE_V35:
-		case IF_IFACE_V24:
-		case IF_IFACE_X21:
-		case IF_IFACE_X21D:
-		case IF_IFACE_T1:
-		case IF_IFACE_E1:
-			return fst_set_iface(card, port, ifr);
-
-		case IF_PROTO_RAW:
-			port->mode = FST_RAW;
-			return 0;
-
-		case IF_GET_PROTO:
-			if (port->mode == FST_RAW) {
-				ifr->ifr_settings.type = IF_PROTO_RAW;
-				return 0;
-			}
-			return hdlc_ioctl(dev, ifr, cmd);
-
-		default:
-			port->mode = FST_GEN_HDLC;
-			dbg(DBG_IOCTL, "Passing this type to hdlc %x\n",
-			    ifr->ifr_settings.type);
-			return hdlc_ioctl(dev, ifr, cmd);
-		}
-
-	default:
-		/* Not one of ours. Pass through to HDLC package */
-		return hdlc_ioctl(dev, ifr, cmd);
-	}
-}
-
-static void
-fst_openport(struct fst_port_info *port)
-{
-	int signals;
-	int txq_length;
-
-	/* Only init things if card is actually running. This allows open to
-	 * succeed for downloads etc.
-	 */
-	if (port->card->state == FST_RUNNING) {
-		if (port->run) {
-			dbg(DBG_OPEN, "open: found port already running\n");
-
-			fst_issue_cmd(port, STOPPORT);
-			port->run = 0;
-		}
-
-		fst_rx_config(port);
-		fst_tx_config(port);
-		fst_op_raise(port, OPSTS_RTS | OPSTS_DTR);
-
-		fst_issue_cmd(port, STARTPORT);
-		port->run = 1;
-
-		signals = FST_RDL(port->card, v24DebouncedSts[port->index]);
-		if (signals & (((port->hwif == X21) || (port->hwif == X21D))
-			       ? IPSTS_INDICATE : IPSTS_DCD))
-			netif_carrier_on(port_to_dev(port));
-		else
-			netif_carrier_off(port_to_dev(port));
-
-		txq_length = port->txqe - port->txqs;
-		port->txqe = 0;
-		port->txqs = 0;
-	}
-
-}
-
-static void
-fst_closeport(struct fst_port_info *port)
-{
-	if (port->card->state == FST_RUNNING) {
-		if (port->run) {
-			port->run = 0;
-			fst_op_lower(port, OPSTS_RTS | OPSTS_DTR);
-
-			fst_issue_cmd(port, STOPPORT);
-		} else {
-			dbg(DBG_OPEN, "close: port not running\n");
-		}
-	}
-}
-
-static int
-fst_open(struct net_device *dev)
-{
-	int err;
-	struct fst_port_info *port;
-
-	port = dev_to_port(dev);
-	if (!try_module_get(THIS_MODULE))
-          return -EBUSY;
-
-	if (port->mode != FST_RAW) {
-		err = hdlc_open(dev);
-		if (err) {
-			module_put(THIS_MODULE);
-			return err;
-		}
-	}
-
-	fst_openport(port);
-	netif_wake_queue(dev);
-	return 0;
-}
-
-static int
-fst_close(struct net_device *dev)
-{
-	struct fst_port_info *port;
-	struct fst_card_info *card;
-	unsigned char tx_dma_done;
-	unsigned char rx_dma_done;
-
-	port = dev_to_port(dev);
-	card = port->card;
-
-	tx_dma_done = inb(card->pci_conf + DMACSR1);
-	rx_dma_done = inb(card->pci_conf + DMACSR0);
-	dbg(DBG_OPEN,
-	    "Port Close: tx_dma_in_progress = %d (%x) rx_dma_in_progress = %d (%x)\n",
-	    card->dmatx_in_progress, tx_dma_done, card->dmarx_in_progress,
-	    rx_dma_done);
-
-	netif_stop_queue(dev);
-	fst_closeport(dev_to_port(dev));
-	if (port->mode != FST_RAW) {
-		hdlc_close(dev);
-	}
-	module_put(THIS_MODULE);
-	return 0;
-}
-
-static int
-fst_attach(struct net_device *dev, unsigned short encoding, unsigned short parity)
-{
-	/*
-	 * Setting currently fixed in FarSync card so we check and forget
-	 */
-	if (encoding != ENCODING_NRZ || parity != PARITY_CRC16_PR1_CCITT)
-		return -EINVAL;
-	return 0;
-}
-
-static void
-fst_tx_timeout(struct net_device *dev)
-{
-	struct fst_port_info *port;
-	struct fst_card_info *card;
-
-	port = dev_to_port(dev);
-	card = port->card;
-	dev->stats.tx_errors++;
-	dev->stats.tx_aborted_errors++;
-	dbg(DBG_ASS, "Tx timeout card %d port %d\n",
-	    card->card_no, port->index);
-	fst_issue_cmd(port, ABORTTX);
-
-	dev->trans_start = jiffies;
-	netif_wake_queue(dev);
-	port->start = 0;
-}
-
-static netdev_tx_t
-fst_start_xmit(struct sk_buff *skb, struct net_device *dev)
-{
-	struct fst_card_info *card;
-	struct fst_port_info *port;
-	unsigned long flags;
-	int txq_length;
-
-	port = dev_to_port(dev);
-	card = port->card;
-	dbg(DBG_TX, "fst_start_xmit: length = %d\n", skb->len);
-
-	/* Drop packet with error if we don't have carrier */
-	if (!netif_carrier_ok(dev)) {
-		dev_kfree_skb(skb);
-		dev->stats.tx_errors++;
-		dev->stats.tx_carrier_errors++;
-		dbg(DBG_ASS,
-		    "Tried to transmit but no carrier on card %d port %d\n",
-		    card->card_no, port->index);
-		return NETDEV_TX_OK;
-	}
-
-	/* Drop it if it's too big! MTU failure ? */
-	if (skb->len > LEN_TX_BUFFER) {
-		dbg(DBG_ASS, "Packet too large %d vs %d\n", skb->len,
-		    LEN_TX_BUFFER);
-		dev_kfree_skb(skb);
-		dev->stats.tx_errors++;
-		return NETDEV_TX_OK;
-	}
-
-	/*
-	 * We are always going to queue the packet
-	 * so that the bottom half is the only place we tx from
-	 * Check there is room in the port txq
-	 */
-	spin_lock_irqsave(&card->card_lock, flags);
-	if ((txq_length = port->txqe - port->txqs) < 0) {
-		/*
-		 * This is the case where the next free has wrapped but the
-		 * last used hasn't
-		 */
-		txq_length = txq_length + FST_TXQ_DEPTH;
-	}
-	spin_unlock_irqrestore(&card->card_lock, flags);
-	if (txq_length > fst_txq_high) {
-		/*
-		 * We have got enough buffers in the pipeline.  Ask the network
-		 * layer to stop sending frames down
-		 */
-		netif_stop_queue(dev);
-		port->start = 1;	/* I'm using this to signal stop sent up */
-	}
-
-	if (txq_length == FST_TXQ_DEPTH - 1) {
-		/*
-		 * This shouldn't have happened but such is life
-		 */
-		dev_kfree_skb(skb);
-		dev->stats.tx_errors++;
-		dbg(DBG_ASS, "Tx queue overflow card %d port %d\n",
-		    card->card_no, port->index);
-		return NETDEV_TX_OK;
-	}
-
-	/*
-	 * queue the buffer
-	 */
-	spin_lock_irqsave(&card->card_lock, flags);
-	port->txq[port->txqe] = skb;
-	port->txqe++;
-	if (port->txqe == FST_TXQ_DEPTH)
-		port->txqe = 0;
-	spin_unlock_irqrestore(&card->card_lock, flags);
-
-	/* Scehdule the bottom half which now does transmit processing */
-	fst_q_work_item(&fst_work_txq, card->card_no);
-	tasklet_schedule(&fst_tx_task);
-
-	return NETDEV_TX_OK;
-}
-
-/*
- *      Card setup having checked hardware resources.
- *      Should be pretty bizarre if we get an error here (kernel memory
- *      exhaustion is one possibility). If we do see a problem we report it
- *      via a printk and leave the corresponding interface and all that follow
- *      disabled.
- */
-static char *type_strings[] __devinitdata = {
-	"no hardware",		/* Should never be seen */
-	"FarSync T2P",
-	"FarSync T4P",
-	"FarSync T1U",
-	"FarSync T2U",
-	"FarSync T4U",
-	"FarSync TE1"
-};
-
-static void __devinit
-fst_init_card(struct fst_card_info *card)
-{
-	int i;
-	int err;
-
-	/* We're working on a number of ports based on the card ID. If the
-	 * firmware detects something different later (should never happen)
-	 * we'll have to revise it in some way then.
-	 */
-	for (i = 0; i < card->nports; i++) {
-                err = register_hdlc_device(card->ports[i].dev);
-                if (err < 0) {
-			int j;
-			pr_err("Cannot register HDLC device for port %d (errno %d)\n",
-			       i, -err);
-			for (j = i; j < card->nports; j++) {
-				free_netdev(card->ports[j].dev);
-				card->ports[j].dev = NULL;
-			}
-                        card->nports = i;
-                        break;
-                }
-	}
-
-	pr_info("%s-%s: %s IRQ%d, %d ports\n",
-		port_to_dev(&card->ports[0])->name,
-		port_to_dev(&card->ports[card->nports - 1])->name,
-		type_strings[card->type], card->irq, card->nports);
-}
-
-static const struct net_device_ops fst_ops = {
-	.ndo_open       = fst_open,
-	.ndo_stop       = fst_close,
-	.ndo_change_mtu = hdlc_change_mtu,
-	.ndo_start_xmit = hdlc_start_xmit,
-	.ndo_do_ioctl   = fst_ioctl,
-	.ndo_tx_timeout = fst_tx_timeout,
-};
-
-/*
- *      Initialise card when detected.
- *      Returns 0 to indicate success, or errno otherwise.
- */
-static int __devinit
-fst_add_one(struct pci_dev *pdev, const struct pci_device_id *ent)
-{
-	static int no_of_cards_added = 0;
-	struct fst_card_info *card;
-	int err = 0;
-	int i;
-
-	printk_once(KERN_INFO
-		    pr_fmt("FarSync WAN driver " FST_USER_VERSION
-			   " (c) 2001-2004 FarSite Communications Ltd.\n"));
-#if FST_DEBUG
-	dbg(DBG_ASS, "The value of debug mask is %x\n", fst_debug_mask);
-#endif
-	/*
-	 * We are going to be clever and allow certain cards not to be
-	 * configured.  An exclude list can be provided in /etc/modules.conf
-	 */
-	if (fst_excluded_cards != 0) {
-		/*
-		 * There are cards to exclude
-		 *
-		 */
-		for (i = 0; i < fst_excluded_cards; i++) {
-			if ((pdev->devfn) >> 3 == fst_excluded_list[i]) {
-				pr_info("FarSync PCI device %d not assigned\n",
-					(pdev->devfn) >> 3);
-				return -EBUSY;
-			}
-		}
-	}
-
-	/* Allocate driver private data */
-	card = kzalloc(sizeof (struct fst_card_info), GFP_KERNEL);
-	if (card == NULL) {
-		pr_err("FarSync card found but insufficient memory for driver storage\n");
-		return -ENOMEM;
-	}
-
-	/* Try to enable the device */
-	if ((err = pci_enable_device(pdev)) != 0) {
-		pr_err("Failed to enable card. Err %d\n", -err);
-		kfree(card);
-		return err;
-	}
-
-	if ((err = pci_request_regions(pdev, "FarSync")) !=0) {
-		pr_err("Failed to allocate regions. Err %d\n", -err);
-		pci_disable_device(pdev);
-		kfree(card);
-	        return err;
-	}
-
-	/* Get virtual addresses of memory regions */
-	card->pci_conf = pci_resource_start(pdev, 1);
-	card->phys_mem = pci_resource_start(pdev, 2);
-	card->phys_ctlmem = pci_resource_start(pdev, 3);
-	if ((card->mem = ioremap(card->phys_mem, FST_MEMSIZE)) == NULL) {
-		pr_err("Physical memory remap failed\n");
-		pci_release_regions(pdev);
-		pci_disable_device(pdev);
-		kfree(card);
-		return -ENODEV;
-	}
-	if ((card->ctlmem = ioremap(card->phys_ctlmem, 0x10)) == NULL) {
-		pr_err("Control memory remap failed\n");
-		pci_release_regions(pdev);
-		pci_disable_device(pdev);
-		iounmap(card->mem);
-		kfree(card);
-		return -ENODEV;
-	}
-	dbg(DBG_PCI, "kernel mem %p, ctlmem %p\n", card->mem, card->ctlmem);
-
-	/* Register the interrupt handler */
-	if (request_irq(pdev->irq, fst_intr, IRQF_SHARED, FST_DEV_NAME, card)) {
-		pr_err("Unable to register interrupt %d\n", card->irq);
-		pci_release_regions(pdev);
-		pci_disable_device(pdev);
-		iounmap(card->ctlmem);
-		iounmap(card->mem);
-		kfree(card);
-		return -ENODEV;
-	}
-
-	/* Record info we need */
-	card->irq = pdev->irq;
-	card->type = ent->driver_data;
-	card->family = ((ent->driver_data == FST_TYPE_T2P) ||
-			(ent->driver_data == FST_TYPE_T4P))
-	    ? FST_FAMILY_TXP : FST_FAMILY_TXU;
-	if ((ent->driver_data == FST_TYPE_T1U) ||
-	    (ent->driver_data == FST_TYPE_TE1))
-		card->nports = 1;
-	else
-		card->nports = ((ent->driver_data == FST_TYPE_T2P) ||
-				(ent->driver_data == FST_TYPE_T2U)) ? 2 : 4;
-
-	card->state = FST_UNINIT;
-        spin_lock_init ( &card->card_lock );
-
-        for ( i = 0 ; i < card->nports ; i++ ) {
-		struct net_device *dev = alloc_hdlcdev(&card->ports[i]);
-		hdlc_device *hdlc;
-		if (!dev) {
-			while (i--)
-				free_netdev(card->ports[i].dev);
-			pr_err("FarSync: out of memory\n");
-                        free_irq(card->irq, card);
-                        pci_release_regions(pdev);
-                        pci_disable_device(pdev);
-                        iounmap(card->ctlmem);
-                        iounmap(card->mem);
-                        kfree(card);
-                        return -ENODEV;
-		}
-		card->ports[i].dev    = dev;
-                card->ports[i].card   = card;
-                card->ports[i].index  = i;
-                card->ports[i].run    = 0;
-
-		hdlc = dev_to_hdlc(dev);
-
-                /* Fill in the net device info */
-		/* Since this is a PCI setup this is purely
-		 * informational. Give them the buffer addresses
-		 * and basic card I/O.
-		 */
-                dev->mem_start   = card->phys_mem
-                                 + BUF_OFFSET ( txBuffer[i][0][0]);
-                dev->mem_end     = card->phys_mem
-                                 + BUF_OFFSET ( txBuffer[i][NUM_TX_BUFFER][0]);
-                dev->base_addr   = card->pci_conf;
-                dev->irq         = card->irq;
-
-		dev->netdev_ops = &fst_ops;
-		dev->tx_queue_len = FST_TX_QUEUE_LEN;
-		dev->watchdog_timeo = FST_TX_TIMEOUT;
-                hdlc->attach = fst_attach;
-                hdlc->xmit   = fst_start_xmit;
-	}
-
-	card->device = pdev;
-
-	dbg(DBG_PCI, "type %d nports %d irq %d\n", card->type,
-	    card->nports, card->irq);
-	dbg(DBG_PCI, "conf %04x mem %08x ctlmem %08x\n",
-	    card->pci_conf, card->phys_mem, card->phys_ctlmem);
-
-	/* Reset the card's processor */
-	fst_cpureset(card);
-	card->state = FST_RESET;
-
-	/* Initialise DMA (if required) */
-	fst_init_dma(card);
-
-	/* Record driver data for later use */
-	pci_set_drvdata(pdev, card);
-
-	/* Remainder of card setup */
-	fst_card_array[no_of_cards_added] = card;
-	card->card_no = no_of_cards_added++;	/* Record instance and bump it */
-	fst_init_card(card);
-	if (card->family == FST_FAMILY_TXU) {
-		/*
-		 * Allocate a dma buffer for transmit and receives
-		 */
-		card->rx_dma_handle_host =
-		    pci_alloc_consistent(card->device, FST_MAX_MTU,
-					 &card->rx_dma_handle_card);
-		if (card->rx_dma_handle_host == NULL) {
-			pr_err("Could not allocate rx dma buffer\n");
-			fst_disable_intr(card);
-			pci_release_regions(pdev);
-			pci_disable_device(pdev);
-			iounmap(card->ctlmem);
-			iounmap(card->mem);
-			kfree(card);
-			return -ENOMEM;
-		}
-		card->tx_dma_handle_host =
-		    pci_alloc_consistent(card->device, FST_MAX_MTU,
-					 &card->tx_dma_handle_card);
-		if (card->tx_dma_handle_host == NULL) {
-			pr_err("Could not allocate tx dma buffer\n");
-			fst_disable_intr(card);
-			pci_release_regions(pdev);
-			pci_disable_device(pdev);
-			iounmap(card->ctlmem);
-			iounmap(card->mem);
-			kfree(card);
-			return -ENOMEM;
-		}
-	}
-	return 0;		/* Success */
-}
-
-/*
- *      Cleanup and close down a card
- */
-static void __devexit
-fst_remove_one(struct pci_dev *pdev)
-{
-	struct fst_card_info *card;
-	int i;
-
-	card = pci_get_drvdata(pdev);
-
-	for (i = 0; i < card->nports; i++) {
-		struct net_device *dev = port_to_dev(&card->ports[i]);
-		unregister_hdlc_device(dev);
-	}
-
-	fst_disable_intr(card);
-	free_irq(card->irq, card);
-
-	iounmap(card->ctlmem);
-	iounmap(card->mem);
-	pci_release_regions(pdev);
-	if (card->family == FST_FAMILY_TXU) {
-		/*
-		 * Free dma buffers
-		 */
-		pci_free_consistent(card->device, FST_MAX_MTU,
-				    card->rx_dma_handle_host,
-				    card->rx_dma_handle_card);
-		pci_free_consistent(card->device, FST_MAX_MTU,
-				    card->tx_dma_handle_host,
-				    card->tx_dma_handle_card);
-	}
-	fst_card_array[card->card_no] = NULL;
-}
-
-static struct pci_driver fst_driver = {
-        .name		= FST_NAME,
-        .id_table	= fst_pci_dev_id,
-        .probe		= fst_add_one,
-        .remove	= __devexit_p(fst_remove_one),
-        .suspend	= NULL,
-        .resume	= NULL,
-};
-
-static int __init
-fst_init(void)
-{
-	int i;
-
-	for (i = 0; i < FST_MAX_CARDS; i++)
-		fst_card_array[i] = NULL;
-	spin_lock_init(&fst_work_q_lock);
-	return pci_register_driver(&fst_driver);
-}
-
-static void __exit
-fst_cleanup_module(void)
-{
-	pr_info("FarSync WAN driver unloading\n");
-	pci_unregister_driver(&fst_driver);
-}
-
-module_init(fst_init);
-module_exit(fst_cleanup_module);