tty: move obsolete and broken tty drivers to drivers/staging/tty/

As planned by Arnd Bergmann, this moves the following drivers to the
drivers/staging/tty/ directory where they will be removed after 2.6.41
if no one steps up to claim them.
	epca
	epca
	ip2
	istallion
	riscom8
	serial167
	specialix
	stallion

Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 0 insertions, 2214 deletions

diff --git a/drivers/char/ip2/i2lib.c b/drivers/char/ip2/i2lib.c
deleted file mode 100644
index 0d10b89218ed..000000000000
--- a/drivers/char/ip2/i2lib.c
+++ /dev/null
@@ -1,2214 +0,0 @@
-/*******************************************************************************
-*
-*   (c) 1999 by Computone Corporation
-*
-********************************************************************************
-*
-*
-*   PACKAGE:     Linux tty Device Driver for IntelliPort family of multiport
-*                serial I/O controllers.
-*
-*   DESCRIPTION: High-level interface code for the device driver. Uses the
-*                Extremely Low Level Interface Support (i2ellis.c). Provides an
-*                interface to the standard loadware, to support drivers or
-*                application code. (This is included source code, not a separate
-*                compilation module.)
-*
-*******************************************************************************/
-//------------------------------------------------------------------------------
-// Note on Strategy:
-// Once the board has been initialized, it will interrupt us when:
-// 1) It has something in the fifo for us to read (incoming data, flow control
-// packets, or whatever).
-// 2) It has stripped whatever we have sent last time in the FIFO (and
-// consequently is ready for more).
-//
-// Note also that the buffer sizes declared in i2lib.h are VERY SMALL. This
-// worsens performance considerably, but is done so that a great many channels
-// might use only a little memory.
-//------------------------------------------------------------------------------
-
-//------------------------------------------------------------------------------
-// Revision History:
-//
-// 0.00 -  4/16/91 --- First Draft
-// 0.01 -  4/29/91 --- 1st beta release
-// 0.02 -  6/14/91 --- Changes to allow small model compilation
-// 0.03 -  6/17/91 MAG Break reporting protected from interrupts routines with
-//                     in-line asm added for moving data to/from ring buffers,
-//                     replacing a variety of methods used previously.
-// 0.04 -  6/21/91 MAG Initial flow-control packets not queued until
-//                     i2_enable_interrupts time. Former versions would enqueue
-//                     them at i2_init_channel time, before we knew how many
-//                     channels were supposed to exist!
-// 0.05 - 10/12/91 MAG Major changes: works through the ellis.c routines now;
-//                     supports new 16-bit protocol and expandable boards.
-//      - 10/24/91 MAG Most changes in place and stable.
-// 0.06 -  2/20/92 MAG Format of CMD_HOTACK corrected: the command takes no
-//                     argument.
-// 0.07 -- 3/11/92 MAG Support added to store special packet types at interrupt
-//                     level (mostly responses to specific commands.)
-// 0.08 -- 3/30/92 MAG Support added for STAT_MODEM packet
-// 0.09 -- 6/24/93 MAG i2Link... needed to update number of boards BEFORE
-//                     turning on the interrupt.
-// 0.10 -- 6/25/93 MAG To avoid gruesome death from a bad board, we sanity check
-//                     some incoming.
-//
-// 1.1  - 12/25/96 AKM Linux version.
-//      - 10/09/98 DMC Revised Linux version.
-//------------------------------------------------------------------------------
-
-//************
-//* Includes *
-//************
-
-#include <linux/sched.h>
-#include "i2lib.h"
-
-
-//***********************
-//* Function Prototypes *
-//***********************
-static void i2QueueNeeds(i2eBordStrPtr, i2ChanStrPtr, int);
-static i2ChanStrPtr i2DeQueueNeeds(i2eBordStrPtr, int );
-static void i2StripFifo(i2eBordStrPtr);
-static void i2StuffFifoBypass(i2eBordStrPtr);
-static void i2StuffFifoFlow(i2eBordStrPtr);
-static void i2StuffFifoInline(i2eBordStrPtr);
-static int i2RetryFlushOutput(i2ChanStrPtr);
-
-// Not a documented part of the library routines (careful...) but the Diagnostic
-// i2diag.c finds them useful to help the throughput in certain limited
-// single-threaded operations.
-static void iiSendPendingMail(i2eBordStrPtr);
-static void serviceOutgoingFifo(i2eBordStrPtr);
-
-// Functions defined in ip2.c as part of interrupt handling
-static void do_input(struct work_struct *);
-static void do_status(struct work_struct *);
-
-//***************
-//* Debug  Data *
-//***************
-#ifdef DEBUG_FIFO
-
-unsigned char DBGBuf[0x4000];
-unsigned short I = 0;
-
-static void
-WriteDBGBuf(char *s, unsigned char *src, unsigned short n ) 
-{
-	char *p = src;
-
-	// XXX: We need a spin lock here if we ever use this again
-
-	while (*s) {	// copy label
-		DBGBuf[I] = *s++;
-		I = I++ & 0x3fff;
-	}
-	while (n--) {	// copy data
-		DBGBuf[I] = *p++;
-		I = I++ & 0x3fff;
-	}
-}
-
-static void
-fatality(i2eBordStrPtr pB )
-{
-	int i;
-
-	for (i=0;i<sizeof(DBGBuf);i++) {
-		if ((i%16) == 0)
-			printk("\n%4x:",i);
-		printk("%02x ",DBGBuf[i]);
-	}
-	printk("\n");
-	for (i=0;i<sizeof(DBGBuf);i++) {
-		if ((i%16) == 0)
-			printk("\n%4x:",i);
-		if (DBGBuf[i] >= ' ' && DBGBuf[i] <= '~') {
-			printk(" %c ",DBGBuf[i]);
-		} else {
-			printk(" . ");
-		}
-	}
-	printk("\n");
-	printk("Last index %x\n",I);
-}
-#endif /* DEBUG_FIFO */
-
-//********
-//* Code *
-//********
-
-static inline int
-i2Validate ( i2ChanStrPtr pCh )
-{
-	//ip2trace(pCh->port_index, ITRC_VERIFY,ITRC_ENTER,2,pCh->validity,
-	//	(CHANNEL_MAGIC | CHANNEL_SUPPORT));
-	return ((pCh->validity & (CHANNEL_MAGIC_BITS | CHANNEL_SUPPORT)) 
-			  == (CHANNEL_MAGIC | CHANNEL_SUPPORT));
-}
-
-static void iiSendPendingMail_t(unsigned long data)
-{
-	i2eBordStrPtr pB = (i2eBordStrPtr)data;
-
-	iiSendPendingMail(pB);
-}
-
-//******************************************************************************
-// Function:   iiSendPendingMail(pB)
-// Parameters: Pointer to a board structure
-// Returns:    Nothing
-//
-// Description:
-// If any outgoing mail bits are set and there is outgoing mailbox is empty,
-// send the mail and clear the bits.
-//******************************************************************************
-static void
-iiSendPendingMail(i2eBordStrPtr pB)
-{
-	if (pB->i2eOutMailWaiting && (!pB->i2eWaitingForEmptyFifo) )
-	{
-		if (iiTrySendMail(pB, pB->i2eOutMailWaiting))
-		{
-			/* If we were already waiting for fifo to empty,
-			 * or just sent MB_OUT_STUFFED, then we are
-			 * still waiting for it to empty, until we should
-			 * receive an MB_IN_STRIPPED from the board.
-			 */
-			pB->i2eWaitingForEmptyFifo |=
-				(pB->i2eOutMailWaiting & MB_OUT_STUFFED);
-			pB->i2eOutMailWaiting = 0;
-			pB->SendPendingRetry = 0;
-		} else {
-/*		The only time we hit this area is when "iiTrySendMail" has
-		failed.  That only occurs when the outbound mailbox is
-		still busy with the last message.  We take a short breather
-		to let the board catch up with itself and then try again.
-		16 Retries is the limit - then we got a borked board.
-			/\/\|=mhw=|\/\/				*/
-
-			if( ++pB->SendPendingRetry < 16 ) {
-				setup_timer(&pB->SendPendingTimer,
-					iiSendPendingMail_t, (unsigned long)pB);
-				mod_timer(&pB->SendPendingTimer, jiffies + 1);
-			} else {
-				printk( KERN_ERR "IP2: iiSendPendingMail unable to queue outbound mail\n" );
-			}
-		}
-	}
-}
-
-//******************************************************************************
-// Function:   i2InitChannels(pB, nChannels, pCh)
-// Parameters: Pointer to Ellis Board structure
-//             Number of channels to initialize
-//             Pointer to first element in an array of channel structures
-// Returns:    Success or failure
-//
-// Description:
-//
-// This function patches pointers, back-pointers, and initializes all the
-// elements in the channel structure array.
-//
-// This should be run after the board structure is initialized, through having
-// loaded the standard loadware (otherwise it complains).
-//
-// In any case, it must be done before any serious work begins initializing the
-// irq's or sending commands...
-//
-//******************************************************************************
-static int
-i2InitChannels ( i2eBordStrPtr pB, int nChannels, i2ChanStrPtr pCh)
-{
-	int index, stuffIndex;
-	i2ChanStrPtr *ppCh;
-	
-	if (pB->i2eValid != I2E_MAGIC) {
-		I2_COMPLETE(pB, I2EE_BADMAGIC);
-	}
-	if (pB->i2eState != II_STATE_STDLOADED) {
-		I2_COMPLETE(pB, I2EE_BADSTATE);
-	}
-
-	rwlock_init(&pB->read_fifo_spinlock);
-	rwlock_init(&pB->write_fifo_spinlock);
-	rwlock_init(&pB->Dbuf_spinlock);
-	rwlock_init(&pB->Bbuf_spinlock);
-	rwlock_init(&pB->Fbuf_spinlock);
-	
-	// NO LOCK needed yet - this is init
-
-	pB->i2eChannelPtr = pCh;
-	pB->i2eChannelCnt = nChannels;
-
-	pB->i2Fbuf_strip = pB->i2Fbuf_stuff = 0;
-	pB->i2Dbuf_strip = pB->i2Dbuf_stuff = 0;
-	pB->i2Bbuf_strip = pB->i2Bbuf_stuff = 0;
-
-	pB->SendPendingRetry = 0;
-
-	memset ( pCh, 0, sizeof (i2ChanStr) * nChannels );
-
-	for (index = stuffIndex = 0, ppCh = (i2ChanStrPtr *)(pB->i2Fbuf);
-		  nChannels && index < ABS_MOST_PORTS;
-		  index++)
-	{
-		if ( !(pB->i2eChannelMap[index >> 4] & (1 << (index & 0xf)) ) ) {
-			continue;
-		}
-		rwlock_init(&pCh->Ibuf_spinlock);
-		rwlock_init(&pCh->Obuf_spinlock);
-		rwlock_init(&pCh->Cbuf_spinlock);
-		rwlock_init(&pCh->Pbuf_spinlock);
-		// NO LOCK needed yet - this is init
-		// Set up validity flag according to support level
-		if (pB->i2eGoodMap[index >> 4] & (1 << (index & 0xf)) ) {
-			pCh->validity = CHANNEL_MAGIC | CHANNEL_SUPPORT;
-		} else {
-			pCh->validity = CHANNEL_MAGIC;
-		}
-		pCh->pMyBord = pB;      /* Back-pointer */
-
-		// Prepare an outgoing flow-control packet to send as soon as the chance
-		// occurs.
-		if ( pCh->validity & CHANNEL_SUPPORT ) {
-			pCh->infl.hd.i2sChannel = index;
-			pCh->infl.hd.i2sCount = 5;
-			pCh->infl.hd.i2sType = PTYPE_BYPASS;
-			pCh->infl.fcmd = 37;
-			pCh->infl.asof = 0;
-			pCh->infl.room = IBUF_SIZE - 1;
-
-			pCh->whenSendFlow = (IBUF_SIZE/5)*4; // when 80% full
-
-		// The following is similar to calling i2QueueNeeds, except that this
-		// is done in longhand, since we are setting up initial conditions on
-		// many channels at once.
-			pCh->channelNeeds = NEED_FLOW;  // Since starting from scratch
-			pCh->sinceLastFlow = 0;         // No bytes received since last flow
-											// control packet was queued
-			stuffIndex++;
-			*ppCh++ = pCh;      // List this channel as needing
-								// initial flow control packet sent
-		}
-
-		// Don't allow anything to be sent until the status packets come in from
-		// the board.
-
-		pCh->outfl.asof = 0;
-		pCh->outfl.room = 0;
-
-		// Initialize all the ring buffers
-
-		pCh->Ibuf_stuff = pCh->Ibuf_strip = 0;
-		pCh->Obuf_stuff = pCh->Obuf_strip = 0;
-		pCh->Cbuf_stuff = pCh->Cbuf_strip = 0;
-
-		memset( &pCh->icount, 0, sizeof (struct async_icount) );
-		pCh->hotKeyIn       = HOT_CLEAR;
-		pCh->channelOptions = 0;
-		pCh->bookMarks      = 0;
-		init_waitqueue_head(&pCh->pBookmarkWait);
-
-		init_waitqueue_head(&pCh->open_wait);
-		init_waitqueue_head(&pCh->close_wait);
-		init_waitqueue_head(&pCh->delta_msr_wait);
-
-		// Set base and divisor so default custom rate is 9600
-		pCh->BaudBase    = 921600;	// MAX for ST654, changed after we get
-		pCh->BaudDivisor = 96;		// the boxids (UART types) later
-
-		pCh->dataSetIn   = 0;
-		pCh->dataSetOut  = 0;
-
-		pCh->wopen       = 0;
-		pCh->throttled   = 0;
-
-		pCh->speed       = CBR_9600;
-
-		pCh->flags    = 0;
-
-		pCh->ClosingDelay     = 5*HZ/10;
-		pCh->ClosingWaitTime  = 30*HZ;
-
-		// Initialize task queue objects
-		INIT_WORK(&pCh->tqueue_input, do_input);
-		INIT_WORK(&pCh->tqueue_status, do_status);
-
-#ifdef IP2DEBUG_TRACE
-		pCh->trace = ip2trace;
-#endif
-
-		++pCh;
-     	--nChannels;
-	}
-	// No need to check for wrap here; this is initialization.
-	pB->i2Fbuf_stuff = stuffIndex;
-	I2_COMPLETE(pB, I2EE_GOOD);
-
-}
-
-//******************************************************************************
-// Function:   i2DeQueueNeeds(pB, type)
-// Parameters: Pointer to a board structure
-//             type bit map: may include NEED_INLINE, NEED_BYPASS, or NEED_FLOW
-// Returns:   
-//             Pointer to a channel structure
-//
-// Description: Returns pointer struct of next channel that needs service of
-//  the type specified. Otherwise returns a NULL reference.
-//
-//******************************************************************************
-static i2ChanStrPtr 
-i2DeQueueNeeds(i2eBordStrPtr pB, int type)
-{
-	unsigned short queueIndex;
-	unsigned long flags;
-
-	i2ChanStrPtr pCh = NULL;
-
-	switch(type) {
-
-	case  NEED_INLINE:
-
-		write_lock_irqsave(&pB->Dbuf_spinlock, flags);
-		if ( pB->i2Dbuf_stuff != pB->i2Dbuf_strip)
-		{
-			queueIndex = pB->i2Dbuf_strip;
-			pCh = pB->i2Dbuf[queueIndex];
-			queueIndex++;
-			if (queueIndex >= CH_QUEUE_SIZE) {
-				queueIndex = 0;
-			}
-			pB->i2Dbuf_strip = queueIndex;
-			pCh->channelNeeds &= ~NEED_INLINE;
-		}
-		write_unlock_irqrestore(&pB->Dbuf_spinlock, flags);
-		break;
-
-	case NEED_BYPASS:
-
-		write_lock_irqsave(&pB->Bbuf_spinlock, flags);
-		if (pB->i2Bbuf_stuff != pB->i2Bbuf_strip)
-		{
-			queueIndex = pB->i2Bbuf_strip;
-			pCh = pB->i2Bbuf[queueIndex];
-			queueIndex++;
-			if (queueIndex >= CH_QUEUE_SIZE) {
-				queueIndex = 0;
-			}
-			pB->i2Bbuf_strip = queueIndex;
-			pCh->channelNeeds &= ~NEED_BYPASS;
-		}
-		write_unlock_irqrestore(&pB->Bbuf_spinlock, flags);
-		break;
-	
-	case NEED_FLOW:
-
-		write_lock_irqsave(&pB->Fbuf_spinlock, flags);
-		if (pB->i2Fbuf_stuff != pB->i2Fbuf_strip)
-		{
-			queueIndex = pB->i2Fbuf_strip;
-			pCh = pB->i2Fbuf[queueIndex];
-			queueIndex++;
-			if (queueIndex >= CH_QUEUE_SIZE) {
-				queueIndex = 0;
-			}
-			pB->i2Fbuf_strip = queueIndex;
-			pCh->channelNeeds &= ~NEED_FLOW;
-		}
-		write_unlock_irqrestore(&pB->Fbuf_spinlock, flags);
-		break;
-	default:
-		printk(KERN_ERR "i2DeQueueNeeds called with bad type:%x\n",type);
-		break;
-	}
-	return pCh;
-}
-
-//******************************************************************************
-// Function:   i2QueueNeeds(pB, pCh, type)
-// Parameters: Pointer to a board structure
-//             Pointer to a channel structure
-//             type bit map: may include NEED_INLINE, NEED_BYPASS, or NEED_FLOW
-// Returns:    Nothing
-//
-// Description:
-// For each type of need selected, if the given channel is not already in the
-// queue, adds it, and sets the flag indicating it is in the queue.
-//******************************************************************************
-static void
-i2QueueNeeds(i2eBordStrPtr pB, i2ChanStrPtr pCh, int type)
-{
-	unsigned short queueIndex;
-	unsigned long flags;
-
-	// We turn off all the interrupts during this brief process, since the
-	// interrupt-level code might want to put things on the queue as well.
-
-	switch (type) {
-
-	case NEED_INLINE:
-
-		write_lock_irqsave(&pB->Dbuf_spinlock, flags);
-		if ( !(pCh->channelNeeds & NEED_INLINE) )
-		{
-			pCh->channelNeeds |= NEED_INLINE;
-			queueIndex = pB->i2Dbuf_stuff;
-			pB->i2Dbuf[queueIndex++] = pCh;
-			if (queueIndex >= CH_QUEUE_SIZE)
-				queueIndex = 0;
-			pB->i2Dbuf_stuff = queueIndex;
-		}
-		write_unlock_irqrestore(&pB->Dbuf_spinlock, flags);
-		break;
-
-	case NEED_BYPASS:
-
-		write_lock_irqsave(&pB->Bbuf_spinlock, flags);
-		if ((type & NEED_BYPASS) && !(pCh->channelNeeds & NEED_BYPASS))
-		{
-			pCh->channelNeeds |= NEED_BYPASS;
-			queueIndex = pB->i2Bbuf_stuff;
-			pB->i2Bbuf[queueIndex++] = pCh;
-			if (queueIndex >= CH_QUEUE_SIZE)
-				queueIndex = 0;
-			pB->i2Bbuf_stuff = queueIndex;
-		} 
-		write_unlock_irqrestore(&pB->Bbuf_spinlock, flags);
-		break;
-
-	case NEED_FLOW:
-
-		write_lock_irqsave(&pB->Fbuf_spinlock, flags);
-		if ((type & NEED_FLOW) && !(pCh->channelNeeds & NEED_FLOW))
-		{
-			pCh->channelNeeds |= NEED_FLOW;
-			queueIndex = pB->i2Fbuf_stuff;
-			pB->i2Fbuf[queueIndex++] = pCh;
-			if (queueIndex >= CH_QUEUE_SIZE)
-				queueIndex = 0;
-			pB->i2Fbuf_stuff = queueIndex;
-		}
-		write_unlock_irqrestore(&pB->Fbuf_spinlock, flags);
-		break;
-
-	case NEED_CREDIT:
-		pCh->channelNeeds |= NEED_CREDIT;
-		break;
-	default:
-		printk(KERN_ERR "i2QueueNeeds called with bad type:%x\n",type);
-		break;
-	}
-	return;
-}
-
-//******************************************************************************
-// Function:   i2QueueCommands(type, pCh, timeout, nCommands, pCs,...)
-// Parameters: type - PTYPE_BYPASS or PTYPE_INLINE
-//             pointer to the channel structure
-//             maximum period to wait
-//             number of commands (n)
-//             n commands
-// Returns:    Number of commands sent, or -1 for error
-//
-// get board lock before calling
-//
-// Description:
-// Queues up some commands to be sent to a channel. To send possibly several
-// bypass or inline commands to the given channel. The timeout parameter
-// indicates how many HUNDREDTHS OF SECONDS to wait until there is room:
-// 0 = return immediately if no room, -ive  = wait forever, +ive = number of
-// 1/100 seconds to wait. Return values:
-// -1 Some kind of nasty error: bad channel structure or invalid arguments.
-//  0 No room to send all the commands
-// (+)   Number of commands sent
-//******************************************************************************
-static int
-i2QueueCommands(int type, i2ChanStrPtr pCh, int timeout, int nCommands,
-					 cmdSyntaxPtr pCs0,...)
-{
-	int totalsize = 0;
-	int blocksize;
-	int lastended;
-	cmdSyntaxPtr *ppCs;
-	cmdSyntaxPtr pCs;
-	int count;
-	int flag;
-	i2eBordStrPtr pB;
-
-	unsigned short maxBlock;
-	unsigned short maxBuff;
-	short bufroom;
-	unsigned short stuffIndex;
-	unsigned char *pBuf;
-	unsigned char *pInsert;
-	unsigned char *pDest, *pSource;
-	unsigned short channel;
-	int cnt;
-	unsigned long flags = 0;
-	rwlock_t *lock_var_p = NULL;
-
-	// Make sure the channel exists, otherwise do nothing
-	if ( !i2Validate ( pCh ) ) {
-		return -1;
-	}
-
-	ip2trace (CHANN, ITRC_QUEUE, ITRC_ENTER, 0 );
-
-	pB = pCh->pMyBord;
-
-	// Board must also exist, and THE INTERRUPT COMMAND ALREADY SENT
-	if (pB->i2eValid != I2E_MAGIC || pB->i2eUsingIrq == I2_IRQ_UNDEFINED)
-		return -2;
-	// If the board has gone fatal, return bad, and also hit the trap routine if
-	// it exists.
-	if (pB->i2eFatal) {
-		if ( pB->i2eFatalTrap ) {
-			(*(pB)->i2eFatalTrap)(pB);
-		}
-		return -3;
-	}
-	// Set up some variables, Which buffers are we using?  How big are they?
-	switch(type)
-	{
-	case PTYPE_INLINE:
-		flag = INL;
-		maxBlock = MAX_OBUF_BLOCK;
-		maxBuff = OBUF_SIZE;
-		pBuf = pCh->Obuf;
-		break;
-	case PTYPE_BYPASS:
-		flag = BYP;
-		maxBlock = MAX_CBUF_BLOCK;
-		maxBuff = CBUF_SIZE;
-		pBuf = pCh->Cbuf;
-		break;
-	default:
-		return -4;
-	}
-	// Determine the total size required for all the commands
-	totalsize = blocksize = sizeof(i2CmdHeader);
-	lastended = 0;
-	ppCs = &pCs0;
-	for ( count = nCommands; count; count--, ppCs++)
-	{
-		pCs = *ppCs;
-		cnt = pCs->length;
-		// Will a new block be needed for this one? 
-		// Two possible reasons: too
-		// big or previous command has to be at the end of a packet.
-		if ((blocksize + cnt > maxBlock) || lastended) {
-			blocksize = sizeof(i2CmdHeader);
-			totalsize += sizeof(i2CmdHeader);
-		}
-		totalsize += cnt;
-		blocksize += cnt;
-
-		// If this command had to end a block, then we will make sure to
-		// account for it should there be any more blocks.
-		lastended = pCs->flags & END;
-	}
-	for (;;) {
-		// Make sure any pending flush commands go out before we add more data.
-		if ( !( pCh->flush_flags && i2RetryFlushOutput( pCh ) ) ) {
-			// How much room (this time through) ?
-			switch(type) {
-			case PTYPE_INLINE:
-				lock_var_p = &pCh->Obuf_spinlock;
-				write_lock_irqsave(lock_var_p, flags);
-				stuffIndex = pCh->Obuf_stuff;
-				bufroom = pCh->Obuf_strip - stuffIndex;
-				break;
-			case PTYPE_BYPASS:
-				lock_var_p = &pCh->Cbuf_spinlock;
-				write_lock_irqsave(lock_var_p, flags);
-				stuffIndex = pCh->Cbuf_stuff;
-				bufroom = pCh->Cbuf_strip - stuffIndex;
-				break;
-			default:
-				return -5;
-			}
-			if (--bufroom < 0) {
-				bufroom += maxBuff;
-			}
-
-			ip2trace (CHANN, ITRC_QUEUE, 2, 1, bufroom );
-
-			// Check for overflow
-			if (totalsize <= bufroom) {
-				// Normal Expected path - We still hold LOCK
-				break; /* from for()- Enough room: goto proceed */
-			}
-			ip2trace(CHANN, ITRC_QUEUE, 3, 1, totalsize);
-			write_unlock_irqrestore(lock_var_p, flags);
-		} else
-			ip2trace(CHANN, ITRC_QUEUE, 3, 1, totalsize);
-
-		/* Prepare to wait for buffers to empty */
-		serviceOutgoingFifo(pB);	// Dump what we got
-
-		if (timeout == 0) {
-			return 0;   // Tired of waiting
-		}
-		if (timeout > 0)
-			timeout--;   // So negative values == forever
-		
-		if (!in_interrupt()) {
-			schedule_timeout_interruptible(1);	// short nap
-		} else {
-			// we cannot sched/sleep in interrupt silly
-			return 0;   
-		}
-		if (signal_pending(current)) {
-			return 0;   // Wake up! Time to die!!!
-		}
-
-		ip2trace (CHANN, ITRC_QUEUE, 4, 0 );
-
-	}	// end of for(;;)
-
-	// At this point we have room and the lock - stick them in.
-	channel = pCh->infl.hd.i2sChannel;
-	pInsert = &pBuf[stuffIndex];     // Pointer to start of packet
-	pDest = CMD_OF(pInsert);         // Pointer to start of command
-
-	// When we start counting, the block is the size of the header
-	for (blocksize = sizeof(i2CmdHeader), count = nCommands,
-			lastended = 0, ppCs = &pCs0;
-		count;
-		count--, ppCs++)
-	{
-		pCs = *ppCs;         // Points to command protocol structure
-
-		// If this is a bookmark request command, post the fact that a bookmark
-		// request is pending. NOTE THIS TRICK ONLY WORKS BECAUSE CMD_BMARK_REQ
-		// has no parameters!  The more general solution would be to reference
-		// pCs->cmd[0].
-		if (pCs == CMD_BMARK_REQ) {
-			pCh->bookMarks++;
-
-			ip2trace (CHANN, ITRC_DRAIN, 30, 1, pCh->bookMarks );
-
-		}
-		cnt = pCs->length;
-
-		// If this command would put us over the maximum block size or 
-		// if the last command had to be at the end of a block, we end
-		// the existing block here and start a new one.
-		if ((blocksize + cnt > maxBlock) || lastended) {
-
-			ip2trace (CHANN, ITRC_QUEUE, 5, 0 );
-
-			PTYPE_OF(pInsert) = type;
-			CHANNEL_OF(pInsert) = channel;
-			// count here does not include the header
-			CMD_COUNT_OF(pInsert) = blocksize - sizeof(i2CmdHeader);
-			stuffIndex += blocksize;
-			if(stuffIndex >= maxBuff) {
-				stuffIndex = 0;
-				pInsert = pBuf;
-			}
-			pInsert = &pBuf[stuffIndex];  // Pointer to start of next pkt
-			pDest = CMD_OF(pInsert);
-			blocksize = sizeof(i2CmdHeader);
-		}
-		// Now we know there is room for this one in the current block
-
-		blocksize += cnt;       // Total bytes in this command
-		pSource = pCs->cmd;     // Copy the command into the buffer
-		while (cnt--) {
-			*pDest++ = *pSource++;
-		}
-		// If this command had to end a block, then we will make sure to account
-		// for it should there be any more blocks.
-		lastended = pCs->flags & END;
-	}	// end for
-	// Clean up the final block by writing header, etc
-
-	PTYPE_OF(pInsert) = type;
-	CHANNEL_OF(pInsert) = channel;
-	// count here does not include the header
-	CMD_COUNT_OF(pInsert) = blocksize - sizeof(i2CmdHeader);
-	stuffIndex += blocksize;
-	if(stuffIndex >= maxBuff) {
-		stuffIndex = 0;
-		pInsert = pBuf;
-	}
-	// Updates the index, and post the need for service. When adding these to
-	// the queue of channels, we turn off the interrupt while doing so,
-	// because at interrupt level we might want to push a channel back to the
-	// end of the queue.
-	switch(type)
-	{
-	case PTYPE_INLINE:
-		pCh->Obuf_stuff = stuffIndex;  // Store buffer pointer
-		write_unlock_irqrestore(&pCh->Obuf_spinlock, flags);
-
-		pB->debugInlineQueued++;
-		// Add the channel pointer to list of channels needing service (first
-		// come...), if it's not already there.
-		i2QueueNeeds(pB, pCh, NEED_INLINE);
-		break;
-
-	case PTYPE_BYPASS:
-		pCh->Cbuf_stuff = stuffIndex;  // Store buffer pointer
-		write_unlock_irqrestore(&pCh->Cbuf_spinlock, flags);
-
-		pB->debugBypassQueued++;
-		// Add the channel pointer to list of channels needing service (first
-		// come...), if it's not already there.
-		i2QueueNeeds(pB, pCh, NEED_BYPASS);
-		break;
-	}
-
-	ip2trace (CHANN, ITRC_QUEUE, ITRC_RETURN, 1, nCommands );
-
-	return nCommands; // Good status: number of commands sent
-}
-
-//******************************************************************************
-// Function:   i2GetStatus(pCh,resetBits)
-// Parameters: Pointer to a channel structure
-//             Bit map of status bits to clear
-// Returns:    Bit map of current status bits
-//
-// Description:
-// Returns the state of data set signals, and whether a break has been received,
-// (see i2lib.h for bit-mapped result). resetBits is a bit-map of any status
-// bits to be cleared: I2_BRK, I2_PAR, I2_FRA, I2_OVR,... These are cleared
-// AFTER the condition is passed. If pCh does not point to a valid channel,
-// returns -1 (which would be impossible otherwise.
-//******************************************************************************
-static int
-i2GetStatus(i2ChanStrPtr pCh, int resetBits)
-{
-	unsigned short status;
-	i2eBordStrPtr pB;
-
-	ip2trace (CHANN, ITRC_STATUS, ITRC_ENTER, 2, pCh->dataSetIn, resetBits );
-
-	// Make sure the channel exists, otherwise do nothing */
-	if ( !i2Validate ( pCh ) )
-		return -1;
-
-	pB = pCh->pMyBord;
-
-	status = pCh->dataSetIn;
-
-	// Clear any specified error bits: but note that only actual error bits can
-	// be cleared, regardless of the value passed.
-	if (resetBits)
-	{
-		pCh->dataSetIn &= ~(resetBits & (I2_BRK | I2_PAR | I2_FRA | I2_OVR));
-		pCh->dataSetIn &= ~(I2_DDCD | I2_DCTS | I2_DDSR | I2_DRI);
-	}
-
-	ip2trace (CHANN, ITRC_STATUS, ITRC_RETURN, 1, pCh->dataSetIn );
-
-	return status;
-}
-
-//******************************************************************************
-// Function:   i2Input(pChpDest,count)
-// Parameters: Pointer to a channel structure
-//             Pointer to data buffer
-//             Number of bytes to read
-// Returns:    Number of bytes read, or -1 for error
-//
-// Description:
-// Strips data from the input buffer and writes it to pDest. If there is a
-// collosal blunder, (invalid structure pointers or the like), returns -1.
-// Otherwise, returns the number of bytes read.
-//******************************************************************************
-static int
-i2Input(i2ChanStrPtr pCh)
-{
-	int amountToMove;
-	unsigned short stripIndex;
-	int count;
-	unsigned long flags = 0;
-
-	ip2trace (CHANN, ITRC_INPUT, ITRC_ENTER, 0);
-
-	// Ensure channel structure seems real
-	if ( !i2Validate( pCh ) ) {
-		count = -1;
-		goto i2Input_exit;
-	}
-	write_lock_irqsave(&pCh->Ibuf_spinlock, flags);
-
-	// initialize some accelerators and private copies
-	stripIndex = pCh->Ibuf_strip;
-
-	count = pCh->Ibuf_stuff - stripIndex;
-
-	// If buffer is empty or requested data count was 0, (trivial case) return
-	// without any further thought.
-	if ( count == 0 ) {
-		write_unlock_irqrestore(&pCh->Ibuf_spinlock, flags);
-		goto i2Input_exit;
-	}
-	// Adjust for buffer wrap
-	if ( count < 0 ) {
-		count += IBUF_SIZE;
-	}
-	// Don't give more than can be taken by the line discipline
-	amountToMove = pCh->pTTY->receive_room;
-	if (count > amountToMove) {
-		count = amountToMove;
-	}
-	// How much could we copy without a wrap?
-	amountToMove = IBUF_SIZE - stripIndex;
-
-	if (amountToMove > count) {
-		amountToMove = count;
-	}
-	// Move the first block
-	pCh->pTTY->ldisc->ops->receive_buf( pCh->pTTY,
-		 &(pCh->Ibuf[stripIndex]), NULL, amountToMove );
-	// If we needed to wrap, do the second data move
-	if (count > amountToMove) {
-		pCh->pTTY->ldisc->ops->receive_buf( pCh->pTTY,
-		 pCh->Ibuf, NULL, count - amountToMove );
-	}
-	// Bump and wrap the stripIndex all at once by the amount of data read. This
-	// method is good regardless of whether the data was in one or two pieces.
-	stripIndex += count;
-	if (stripIndex >= IBUF_SIZE) {
-		stripIndex -= IBUF_SIZE;
-	}
-	pCh->Ibuf_strip = stripIndex;
-
-	// Update our flow control information and possibly queue ourselves to send
-	// it, depending on how much data has been stripped since the last time a
-	// packet was sent.
-	pCh->infl.asof += count;
-
-	if ((pCh->sinceLastFlow += count) >= pCh->whenSendFlow) {
-		pCh->sinceLastFlow -= pCh->whenSendFlow;
-		write_unlock_irqrestore(&pCh->Ibuf_spinlock, flags);
-		i2QueueNeeds(pCh->pMyBord, pCh, NEED_FLOW);
-	} else {
-		write_unlock_irqrestore(&pCh->Ibuf_spinlock, flags);
-	}
-
-i2Input_exit:
-
-	ip2trace (CHANN, ITRC_INPUT, ITRC_RETURN, 1, count);
-
-	return count;
-}
-
-//******************************************************************************
-// Function:   i2InputFlush(pCh)
-// Parameters: Pointer to a channel structure
-// Returns:    Number of bytes stripped, or -1 for error
-//
-// Description:
-// Strips any data from the input buffer. If there is a collosal blunder,
-// (invalid structure pointers or the like), returns -1. Otherwise, returns the
-// number of bytes stripped.
-//******************************************************************************
-static int
-i2InputFlush(i2ChanStrPtr pCh)
-{
-	int count;
-	unsigned long flags;
-
-	// Ensure channel structure seems real
-	if ( !i2Validate ( pCh ) )
-		return -1;
-
-	ip2trace (CHANN, ITRC_INPUT, 10, 0);
-
-	write_lock_irqsave(&pCh->Ibuf_spinlock, flags);
-	count = pCh->Ibuf_stuff - pCh->Ibuf_strip;
-
-	// Adjust for buffer wrap
-	if (count < 0) {
-		count += IBUF_SIZE;
-	}
-
-	// Expedient way to zero out the buffer
-	pCh->Ibuf_strip = pCh->Ibuf_stuff;
-
-
-	// Update our flow control information and possibly queue ourselves to send
-	// it, depending on how much data has been stripped since the last time a
-	// packet was sent.
-
-	pCh->infl.asof += count;
-
-	if ( (pCh->sinceLastFlow += count) >= pCh->whenSendFlow )
-	{
-		pCh->sinceLastFlow -= pCh->whenSendFlow;
-		write_unlock_irqrestore(&pCh->Ibuf_spinlock, flags);
-		i2QueueNeeds(pCh->pMyBord, pCh, NEED_FLOW);
-	} else {
-		write_unlock_irqrestore(&pCh->Ibuf_spinlock, flags);
-	}
-
-	ip2trace (CHANN, ITRC_INPUT, 19, 1, count);
-
-	return count;
-}
-
-//******************************************************************************
-// Function:   i2InputAvailable(pCh)
-// Parameters: Pointer to a channel structure
-// Returns:    Number of bytes available, or -1 for error
-//
-// Description:
-// If there is a collosal blunder, (invalid structure pointers or the like),
-// returns -1. Otherwise, returns the number of bytes stripped. Otherwise,
-// returns the number of bytes available in the buffer.
-//******************************************************************************
-#if 0
-static int
-i2InputAvailable(i2ChanStrPtr pCh)
-{
-	int count;
-
-	// Ensure channel structure seems real
-	if ( !i2Validate ( pCh ) ) return -1;
-
-
-	// initialize some accelerators and private copies
-	read_lock_irqsave(&pCh->Ibuf_spinlock, flags);
-	count = pCh->Ibuf_stuff - pCh->Ibuf_strip;
-	read_unlock_irqrestore(&pCh->Ibuf_spinlock, flags);
-
-	// Adjust for buffer wrap
-	if (count < 0)
-	{
-		count += IBUF_SIZE;
-	}
-
-	return count;
-}
-#endif 
-
-//******************************************************************************
-// Function:   i2Output(pCh, pSource, count)
-// Parameters: Pointer to channel structure
-//             Pointer to source data
-//             Number of bytes to send
-// Returns:    Number of bytes sent, or -1 for error
-//
-// Description:
-// Queues the data at pSource to be sent as data packets to the board. If there
-// is a collosal blunder, (invalid structure pointers or the like), returns -1.
-// Otherwise, returns the number of bytes written. What if there is not enough
-// room for all the data? If pCh->channelOptions & CO_NBLOCK_WRITE is set, then
-// we transfer as many characters as we can now, then return. If this bit is
-// clear (default), routine will spin along until all the data is buffered.
-// Should this occur, the 1-ms delay routine is called while waiting to avoid
-// applications that one cannot break out of.
-//******************************************************************************
-static int
-i2Output(i2ChanStrPtr pCh, const char *pSource, int count)
-{
-	i2eBordStrPtr pB;
-	unsigned char *pInsert;
-	int amountToMove;
-	int countOriginal = count;
-	unsigned short channel;
-	unsigned short stuffIndex;
-	unsigned long flags;
-
-	int bailout = 10;
-
-	ip2trace (CHANN, ITRC_OUTPUT, ITRC_ENTER, 2, count, 0 );
-
-	// Ensure channel structure seems real
-	if ( !i2Validate ( pCh ) ) 
-		return -1;
-
-	// initialize some accelerators and private copies
-	pB = pCh->pMyBord;
-	channel = pCh->infl.hd.i2sChannel;
-
-	// If the board has gone fatal, return bad, and also hit the trap routine if
-	// it exists.
-	if (pB->i2eFatal) {
-		if (pB->i2eFatalTrap) {
-			(*(pB)->i2eFatalTrap)(pB);
-		}
-		return -1;
-	}
-	// Proceed as though we would do everything
-	while ( count > 0 ) {
-
-		// How much room in output buffer is there?
-		read_lock_irqsave(&pCh->Obuf_spinlock, flags);
-		amountToMove = pCh->Obuf_strip - pCh->Obuf_stuff - 1;
-		read_unlock_irqrestore(&pCh->Obuf_spinlock, flags);
-		if (amountToMove < 0) {
-			amountToMove += OBUF_SIZE;
-		}
-		// Subtract off the headers size and see how much room there is for real
-		// data. If this is negative, we will discover later.
-		amountToMove -= sizeof (i2DataHeader);
-
-		// Don't move more (now) than can go in a single packet
-		if ( amountToMove > (int)(MAX_OBUF_BLOCK - sizeof(i2DataHeader)) ) {
-			amountToMove = MAX_OBUF_BLOCK - sizeof(i2DataHeader);
-		}
-		// Don't move more than the count we were given
-		if (amountToMove > count) {
-			amountToMove = count;
-		}
-		// Now we know how much we must move: NB because the ring buffers have
-		// an overflow area at the end, we needn't worry about wrapping in the
-		// middle of a packet.
-
-// Small WINDOW here with no LOCK but I can't call Flush with LOCK
-// We would be flushing (or ending flush) anyway
-
-		ip2trace (CHANN, ITRC_OUTPUT, 10, 1, amountToMove );
-
-		if ( !(pCh->flush_flags && i2RetryFlushOutput(pCh) ) 
-				&& amountToMove > 0 )
-		{
-			write_lock_irqsave(&pCh->Obuf_spinlock, flags);
-			stuffIndex = pCh->Obuf_stuff;
-      
-			// Had room to move some data: don't know whether the block size,
-			// buffer space, or what was the limiting factor...
-			pInsert = &(pCh->Obuf[stuffIndex]);
-
-			// Set up the header
-			CHANNEL_OF(pInsert)     = channel;
-			PTYPE_OF(pInsert)       = PTYPE_DATA;
-			TAG_OF(pInsert)         = 0;
-			ID_OF(pInsert)          = ID_ORDINARY_DATA;
-			DATA_COUNT_OF(pInsert)  = amountToMove;
-
-			// Move the data
-			memcpy( (char*)(DATA_OF(pInsert)), pSource, amountToMove );
-			// Adjust pointers and indices
-			pSource					+= amountToMove;
-			pCh->Obuf_char_count	+= amountToMove;
-			stuffIndex 				+= amountToMove + sizeof(i2DataHeader);
-			count 					-= amountToMove;
-
-			if (stuffIndex >= OBUF_SIZE) {
-				stuffIndex = 0;
-			}
-			pCh->Obuf_stuff = stuffIndex;
-
-			write_unlock_irqrestore(&pCh->Obuf_spinlock, flags);
-
-			ip2trace (CHANN, ITRC_OUTPUT, 13, 1, stuffIndex );
-
-		} else {
-
-			// Cannot move data
-			// becuz we need to stuff a flush 
-			// or amount to move is <= 0
-
-			ip2trace(CHANN, ITRC_OUTPUT, 14, 3,
-				amountToMove,  pB->i2eFifoRemains,
-				pB->i2eWaitingForEmptyFifo );
-
-			// Put this channel back on queue
-			// this ultimatly gets more data or wakes write output
-			i2QueueNeeds(pB, pCh, NEED_INLINE);
-
-			if ( pB->i2eWaitingForEmptyFifo ) {
-
-				ip2trace (CHANN, ITRC_OUTPUT, 16, 0 );
-
-				// or schedule
-				if (!in_interrupt()) {
-
-					ip2trace (CHANN, ITRC_OUTPUT, 61, 0 );
-
-					schedule_timeout_interruptible(2);
-					if (signal_pending(current)) {
-						break;
-					}
-					continue;
-				} else {
-
-					ip2trace (CHANN, ITRC_OUTPUT, 62, 0 );
-
-					// let interrupt in = WAS restore_flags()
-					// We hold no lock nor is irq off anymore???
-					
-					break;
-				}
-				break;   // from while(count)
-			}
-			else if ( pB->i2eFifoRemains < 32 && !pB->i2eTxMailEmpty ( pB ) )
-			{
-				ip2trace (CHANN, ITRC_OUTPUT, 19, 2,
-					pB->i2eFifoRemains,
-					pB->i2eTxMailEmpty );
-
-				break;   // from while(count)
-			} else if ( pCh->channelNeeds & NEED_CREDIT ) {
-
-				ip2trace (CHANN, ITRC_OUTPUT, 22, 0 );
-
-				break;   // from while(count)
-			} else if ( --bailout) {
-
-				// Try to throw more things (maybe not us) in the fifo if we're
-				// not already waiting for it.
-	
-				ip2trace (CHANN, ITRC_OUTPUT, 20, 0 );
-
-				serviceOutgoingFifo(pB);
-				//break;  CONTINUE;
-			} else {
-				ip2trace (CHANN, ITRC_OUTPUT, 21, 3,
-					pB->i2eFifoRemains,
-					pB->i2eOutMailWaiting,
-					pB->i2eWaitingForEmptyFifo );
-
-				break;   // from while(count)
-			}
-		}
-	} // End of while(count)
-
-	i2QueueNeeds(pB, pCh, NEED_INLINE);
-
-	// We drop through either when the count expires, or when there is some
-	// count left, but there was a non-blocking write.
-	if (countOriginal > count) {
-
-		ip2trace (CHANN, ITRC_OUTPUT, 17, 2, countOriginal, count );
-
-		serviceOutgoingFifo( pB );
-	}
-
-	ip2trace (CHANN, ITRC_OUTPUT, ITRC_RETURN, 2, countOriginal, count );
-
-	return countOriginal - count;
-}
-
-//******************************************************************************
-// Function:   i2FlushOutput(pCh)
-// Parameters: Pointer to a channel structure
-// Returns:    Nothing
-//
-// Description:
-// Sends bypass command to start flushing (waiting possibly forever until there
-// is room), then sends inline command to stop flushing output, (again waiting
-// possibly forever).
-//******************************************************************************
-static inline void
-i2FlushOutput(i2ChanStrPtr pCh)
-{
-
-	ip2trace (CHANN, ITRC_FLUSH, 1, 1, pCh->flush_flags );
-
-	if (pCh->flush_flags)
-		return;
-
-	if ( 1 != i2QueueCommands(PTYPE_BYPASS, pCh, 0, 1, CMD_STARTFL) ) {
-		pCh->flush_flags = STARTFL_FLAG;		// Failed - flag for later
-
-		ip2trace (CHANN, ITRC_FLUSH, 2, 0 );
-
-	} else if ( 1 != i2QueueCommands(PTYPE_INLINE, pCh, 0, 1, CMD_STOPFL) ) {
-		pCh->flush_flags = STOPFL_FLAG;		// Failed - flag for later
-
-		ip2trace (CHANN, ITRC_FLUSH, 3, 0 );
-	}
-}
-
-static int 
-i2RetryFlushOutput(i2ChanStrPtr pCh)
-{
-	int old_flags = pCh->flush_flags;
-
-	ip2trace (CHANN, ITRC_FLUSH, 14, 1, old_flags );
-
-	pCh->flush_flags = 0;	// Clear flag so we can avoid recursion
-									// and queue the commands
-
-	if ( old_flags & STARTFL_FLAG ) {
-		if ( 1 == i2QueueCommands(PTYPE_BYPASS, pCh, 0, 1, CMD_STARTFL) ) {
-			old_flags = STOPFL_FLAG;	//Success - send stop flush
-		} else {
-			old_flags = STARTFL_FLAG;	//Failure - Flag for retry later
-		}
-
-		ip2trace (CHANN, ITRC_FLUSH, 15, 1, old_flags );
-
-	}
-	if ( old_flags & STOPFL_FLAG ) {
-		if (1 == i2QueueCommands(PTYPE_INLINE, pCh, 0, 1, CMD_STOPFL)) {
-			old_flags = 0;	// Success - clear flags
-		}
-
-		ip2trace (CHANN, ITRC_FLUSH, 16, 1, old_flags );
-	}
-	pCh->flush_flags = old_flags;
-
-	ip2trace (CHANN, ITRC_FLUSH, 17, 1, old_flags );
-
-	return old_flags;
-}
-
-//******************************************************************************
-// Function:   i2DrainOutput(pCh,timeout)
-// Parameters: Pointer to a channel structure
-//             Maximum period to wait
-// Returns:    ?
-//
-// Description:
-// Uses the bookmark request command to ask the board to send a bookmark back as
-// soon as all the data is completely sent.
-//******************************************************************************
-static void
-i2DrainWakeup(unsigned long d)
-{
-	i2ChanStrPtr pCh = (i2ChanStrPtr)d;
-
-	ip2trace (CHANN, ITRC_DRAIN, 10, 1, pCh->BookmarkTimer.expires );
-
-	pCh->BookmarkTimer.expires = 0;
-	wake_up_interruptible( &pCh->pBookmarkWait );
-}
-
-static void
-i2DrainOutput(i2ChanStrPtr pCh, int timeout)
-{
-	wait_queue_t wait;
-	i2eBordStrPtr pB;
-
-	ip2trace (CHANN, ITRC_DRAIN, ITRC_ENTER, 1, pCh->BookmarkTimer.expires);
-
-	pB = pCh->pMyBord;
-	// If the board has gone fatal, return bad, 
-	// and also hit the trap routine if it exists.
-	if (pB->i2eFatal) {
-		if (pB->i2eFatalTrap) {
-			(*(pB)->i2eFatalTrap)(pB);
-		}
-		return;
-	}
-	if ((timeout > 0) && (pCh->BookmarkTimer.expires == 0 )) {
-		// One per customer (channel)
-		setup_timer(&pCh->BookmarkTimer, i2DrainWakeup,
-				(unsigned long)pCh);
-
-		ip2trace (CHANN, ITRC_DRAIN, 1, 1, pCh->BookmarkTimer.expires );
-
-		mod_timer(&pCh->BookmarkTimer, jiffies + timeout);
-	}
-	
-	i2QueueCommands( PTYPE_INLINE, pCh, -1, 1, CMD_BMARK_REQ );
-
-	init_waitqueue_entry(&wait, current);
-	add_wait_queue(&(pCh->pBookmarkWait), &wait);
-	set_current_state( TASK_INTERRUPTIBLE );
-
-	serviceOutgoingFifo( pB );
-	
-	schedule();	// Now we take our interruptible sleep on
-
-	// Clean up the queue
-	set_current_state( TASK_RUNNING );
-	remove_wait_queue(&(pCh->pBookmarkWait), &wait);
-
-	// if expires == 0 then timer poped, then do not need to del_timer
-	if ((timeout > 0) && pCh->BookmarkTimer.expires && 
-	                     time_before(jiffies, pCh->BookmarkTimer.expires)) {
-		del_timer( &(pCh->BookmarkTimer) );
-		pCh->BookmarkTimer.expires = 0;
-
-		ip2trace (CHANN, ITRC_DRAIN, 3, 1, pCh->BookmarkTimer.expires );
-
-	}
-	ip2trace (CHANN, ITRC_DRAIN, ITRC_RETURN, 1, pCh->BookmarkTimer.expires );
-	return;
-}
-
-//******************************************************************************
-// Function:   i2OutputFree(pCh)
-// Parameters: Pointer to a channel structure
-// Returns:    Space in output buffer
-//
-// Description:
-// Returns -1 if very gross error. Otherwise returns the amount of bytes still
-// free in the output buffer.
-//******************************************************************************
-static int
-i2OutputFree(i2ChanStrPtr pCh)
-{
-	int amountToMove;
-	unsigned long flags;
-
-	// Ensure channel structure seems real
-	if ( !i2Validate ( pCh ) ) {
-		return -1;
-	}
-	read_lock_irqsave(&pCh->Obuf_spinlock, flags);
-	amountToMove = pCh->Obuf_strip - pCh->Obuf_stuff - 1;
-	read_unlock_irqrestore(&pCh->Obuf_spinlock, flags);
-
-	if (amountToMove < 0) {
-		amountToMove += OBUF_SIZE;
-	}
-	// If this is negative, we will discover later
-	amountToMove -= sizeof(i2DataHeader);
-
-	return (amountToMove < 0) ? 0 : amountToMove;
-}
-static void
-
-ip2_owake( PTTY tp)
-{
-	i2ChanStrPtr  pCh;
-
-	if (tp == NULL) return;
-
-	pCh = tp->driver_data;
-
-	ip2trace (CHANN, ITRC_SICMD, 10, 2, tp->flags,
-			(1 << TTY_DO_WRITE_WAKEUP) );
-
-	tty_wakeup(tp);
-}
-
-static inline void
-set_baud_params(i2eBordStrPtr pB) 
-{
-	int i,j;
-	i2ChanStrPtr  *pCh;
-
-	pCh = (i2ChanStrPtr *) pB->i2eChannelPtr;
-
-	for (i = 0; i < ABS_MAX_BOXES; i++) {
-		if (pB->channelBtypes.bid_value[i]) {
-			if (BID_HAS_654(pB->channelBtypes.bid_value[i])) {
-				for (j = 0; j < ABS_BIGGEST_BOX; j++) {
-					if (pCh[i*16+j] == NULL)
-						break;
-					(pCh[i*16+j])->BaudBase    = 921600;	// MAX for ST654
-					(pCh[i*16+j])->BaudDivisor = 96;
-				}
-			} else {	// has cirrus cd1400
-				for (j = 0; j < ABS_BIGGEST_BOX; j++) {
-					if (pCh[i*16+j] == NULL)
-						break;
-					(pCh[i*16+j])->BaudBase    = 115200;	// MAX for CD1400
-					(pCh[i*16+j])->BaudDivisor = 12;
-				}
-			}
-		}
-	}
-}
-
-//******************************************************************************
-// Function:   i2StripFifo(pB)
-// Parameters: Pointer to a board structure
-// Returns:    ?
-//
-// Description:
-// Strips all the available data from the incoming FIFO, identifies the type of
-// packet, and either buffers the data or does what needs to be done.
-//
-// Note there is no overflow checking here: if the board sends more data than it
-// ought to, we will not detect it here, but blindly overflow...
-//******************************************************************************
-
-// A buffer for reading in blocks for unknown channels
-static unsigned char junkBuffer[IBUF_SIZE];
-
-// A buffer to read in a status packet. Because of the size of the count field
-// for these things, the maximum packet size must be less than MAX_CMD_PACK_SIZE
-static unsigned char cmdBuffer[MAX_CMD_PACK_SIZE + 4];
-
-// This table changes the bit order from MSR order given by STAT_MODEM packet to
-// status bits used in our library.
-static char xlatDss[16] = {
-0      | 0     | 0      | 0      ,
-0      | 0     | 0      | I2_CTS ,
-0      | 0     | I2_DSR | 0      ,
-0      | 0     | I2_DSR | I2_CTS ,
-0      | I2_RI | 0      | 0      ,
-0      | I2_RI | 0      | I2_CTS ,
-0      | I2_RI | I2_DSR | 0      ,
-0      | I2_RI | I2_DSR | I2_CTS ,
-I2_DCD | 0     | 0      | 0      ,
-I2_DCD | 0     | 0      | I2_CTS ,
-I2_DCD | 0     | I2_DSR | 0      ,
-I2_DCD | 0     | I2_DSR | I2_CTS ,
-I2_DCD | I2_RI | 0      | 0      ,
-I2_DCD | I2_RI | 0      | I2_CTS ,
-I2_DCD | I2_RI | I2_DSR | 0      ,
-I2_DCD | I2_RI | I2_DSR | I2_CTS };
-
-static inline void
-i2StripFifo(i2eBordStrPtr pB)
-{
-	i2ChanStrPtr pCh;
-	int channel;
-	int count;
-	unsigned short stuffIndex;
-	int amountToRead;
-	unsigned char *pc, *pcLimit;
-	unsigned char uc;
-	unsigned char dss_change;
-	unsigned long bflags,cflags;
-
-//	ip2trace (ITRC_NO_PORT, ITRC_SFIFO, ITRC_ENTER, 0 );
-
-	while (I2_HAS_INPUT(pB)) {
-//		ip2trace (ITRC_NO_PORT, ITRC_SFIFO, 2, 0 );
-
-		// Process packet from fifo a one atomic unit
-		write_lock_irqsave(&pB->read_fifo_spinlock, bflags);
-   
-		// The first word (or two bytes) will have channel number and type of
-		// packet, possibly other information
-		pB->i2eLeadoffWord[0] = iiReadWord(pB);
-
-		switch(PTYPE_OF(pB->i2eLeadoffWord))
-		{
-		case PTYPE_DATA:
-			pB->got_input = 1;
-
-//			ip2trace (ITRC_NO_PORT, ITRC_SFIFO, 3, 0 );
-
-			channel = CHANNEL_OF(pB->i2eLeadoffWord); /* Store channel */
-			count = iiReadWord(pB);          /* Count is in the next word */
-
-// NEW: Check the count for sanity! Should the hardware fail, our death
-// is more pleasant. While an oversize channel is acceptable (just more
-// than the driver supports), an over-length count clearly means we are
-// sick!
-			if ( ((unsigned int)count) > IBUF_SIZE ) {
-				pB->i2eFatal = 2;
-				write_unlock_irqrestore(&pB->read_fifo_spinlock,
-						bflags);
-				return;     /* Bail out ASAP */
-			}
-			// Channel is illegally big ?
-			if ((channel >= pB->i2eChannelCnt) ||
-				(NULL==(pCh = ((i2ChanStrPtr*)pB->i2eChannelPtr)[channel])))
-			{
-				iiReadBuf(pB, junkBuffer, count);
-				write_unlock_irqrestore(&pB->read_fifo_spinlock,
-						bflags);
-				break;         /* From switch: ready for next packet */
-			}
-
-			// Channel should be valid, then
-
-			// If this is a hot-key, merely post its receipt for now. These are
-			// always supposed to be 1-byte packets, so we won't even check the
-			// count. Also we will post an acknowledgement to the board so that
-			// more data can be forthcoming. Note that we are not trying to use
-			// these sequences in this driver, merely to robustly ignore them.
-			if(ID_OF(pB->i2eLeadoffWord) == ID_HOT_KEY)
-			{
-				pCh->hotKeyIn = iiReadWord(pB) & 0xff;
-				write_unlock_irqrestore(&pB->read_fifo_spinlock,
-						bflags);
-				i2QueueCommands(PTYPE_BYPASS, pCh, 0, 1, CMD_HOTACK);
-				break;   /* From the switch: ready for next packet */
-			}
-
-			// Normal data! We crudely assume there is room for the data in our
-			// buffer because the board wouldn't have exceeded his credit limit.
-			write_lock_irqsave(&pCh->Ibuf_spinlock, cflags);
-													// We have 2 locks now
-			stuffIndex = pCh->Ibuf_stuff;
-			amountToRead = IBUF_SIZE - stuffIndex;
-			if (amountToRead > count)
-				amountToRead = count;
-
-			// stuffIndex would have been already adjusted so there would 
-			// always be room for at least one, and count is always at least
-			// one.
-
-			iiReadBuf(pB, &(pCh->Ibuf[stuffIndex]), amountToRead);
-			pCh->icount.rx += amountToRead;
-
-			// Update the stuffIndex by the amount of data moved. Note we could
-			// never ask for more data than would just fit. However, we might
-			// have read in one more byte than we wanted because the read
-			// rounds up to even bytes. If this byte is on the end of the
-			// packet, and is padding, we ignore it. If the byte is part of
-			// the actual data, we need to move it.
-
-			stuffIndex += amountToRead;
-
-			if (stuffIndex >= IBUF_SIZE) {
-				if ((amountToRead & 1) && (count > amountToRead)) {
-					pCh->Ibuf[0] = pCh->Ibuf[IBUF_SIZE];
-					amountToRead++;
-					stuffIndex = 1;
-				} else {
-					stuffIndex = 0;
-				}
-			}
-
-			// If there is anything left over, read it as well
-			if (count > amountToRead) {
-				amountToRead = count - amountToRead;
-				iiReadBuf(pB, &(pCh->Ibuf[stuffIndex]), amountToRead);
-				pCh->icount.rx += amountToRead;
-				stuffIndex += amountToRead;
-			}
-
-			// Update stuff index
-			pCh->Ibuf_stuff = stuffIndex;
-			write_unlock_irqrestore(&pCh->Ibuf_spinlock, cflags);
-			write_unlock_irqrestore(&pB->read_fifo_spinlock,
-					bflags);
-
-#ifdef USE_IQ
-			schedule_work(&pCh->tqueue_input);
-#else
-			do_input(&pCh->tqueue_input);
-#endif
-
-			// Note we do not need to maintain any flow-control credits at this
-			// time:  if we were to increment .asof and decrement .room, there
-			// would be no net effect. Instead, when we strip data, we will
-			// increment .asof and leave .room unchanged.
-
-			break;   // From switch: ready for next packet
-
-		case PTYPE_STATUS:
-			ip2trace (ITRC_NO_PORT, ITRC_SFIFO, 4, 0 );
-      
-			count = CMD_COUNT_OF(pB->i2eLeadoffWord);
-
-			iiReadBuf(pB, cmdBuffer, count);
-			// We can release early with buffer grab
-			write_unlock_irqrestore(&pB->read_fifo_spinlock,
-					bflags);
-
-			pc = cmdBuffer;
-			pcLimit = &(cmdBuffer[count]);
-
-			while (pc < pcLimit) {
-				channel = *pc++;
-
-				ip2trace (channel, ITRC_SFIFO, 7, 2, channel, *pc );
-
-				/* check for valid channel */
-				if (channel < pB->i2eChannelCnt
-					 && 
-					 (pCh = (((i2ChanStrPtr*)pB->i2eChannelPtr)[channel])) != NULL
-					)
-				{
-					dss_change = 0;
-
-					switch (uc = *pc++)
-					{
-					/* Breaks and modem signals are easy: just update status */
-					case STAT_CTS_UP:
-						if ( !(pCh->dataSetIn & I2_CTS) )
-						{
-							pCh->dataSetIn |= I2_DCTS;
-							pCh->icount.cts++;
-							dss_change = 1;
-						}
-						pCh->dataSetIn |= I2_CTS;
-						break;
-
-					case STAT_CTS_DN:
-						if ( pCh->dataSetIn & I2_CTS )
-						{
-							pCh->dataSetIn |= I2_DCTS;
-							pCh->icount.cts++;
-							dss_change = 1;
-						}
-						pCh->dataSetIn &= ~I2_CTS;
-						break;
-
-					case STAT_DCD_UP:
-						ip2trace (channel, ITRC_MODEM, 1, 1, pCh->dataSetIn );
-
-						if ( !(pCh->dataSetIn & I2_DCD) )
-						{
-							ip2trace (CHANN, ITRC_MODEM, 2, 0 );
-							pCh->dataSetIn |= I2_DDCD;
-							pCh->icount.dcd++;
-							dss_change = 1;
-						}
-						pCh->dataSetIn |= I2_DCD;
-
-						ip2trace (channel, ITRC_MODEM, 3, 1, pCh->dataSetIn );
-						break;
-
-					case STAT_DCD_DN:
-						ip2trace (channel, ITRC_MODEM, 4, 1, pCh->dataSetIn );
-						if ( pCh->dataSetIn & I2_DCD )
-						{
-							ip2trace (channel, ITRC_MODEM, 5, 0 );
-							pCh->dataSetIn |= I2_DDCD;
-							pCh->icount.dcd++;
-							dss_change = 1;
-						}
-						pCh->dataSetIn &= ~I2_DCD;
-
-						ip2trace (channel, ITRC_MODEM, 6, 1, pCh->dataSetIn );
-						break;
-
-					case STAT_DSR_UP:
-						if ( !(pCh->dataSetIn & I2_DSR) )
-						{
-							pCh->dataSetIn |= I2_DDSR;
-							pCh->icount.dsr++;
-							dss_change = 1;
-						}
-						pCh->dataSetIn |= I2_DSR;
-						break;
-
-					case STAT_DSR_DN:
-						if ( pCh->dataSetIn & I2_DSR )
-						{
-							pCh->dataSetIn |= I2_DDSR;
-							pCh->icount.dsr++;
-							dss_change = 1;
-						}
-						pCh->dataSetIn &= ~I2_DSR;
-						break;
-
-					case STAT_RI_UP:
-						if ( !(pCh->dataSetIn & I2_RI) )
-						{
-							pCh->dataSetIn |= I2_DRI;
-							pCh->icount.rng++;
-							dss_change = 1;
-						}
-						pCh->dataSetIn |= I2_RI ;
-						break;
-
-					case STAT_RI_DN:
-						// to be compat with serial.c
-						//if ( pCh->dataSetIn & I2_RI )
-						//{
-						//	pCh->dataSetIn |= I2_DRI;
-						//	pCh->icount.rng++; 
-						//	dss_change = 1;
-						//}
-						pCh->dataSetIn &= ~I2_RI ;
-						break;
-
-					case STAT_BRK_DET:
-						pCh->dataSetIn |= I2_BRK;
-						pCh->icount.brk++;
-						dss_change = 1;
-						break;
-
-					// Bookmarks? one less request we're waiting for
-					case STAT_BMARK:
-						pCh->bookMarks--;
-						if (pCh->bookMarks <= 0 ) {
-							pCh->bookMarks = 0;
-							wake_up_interruptible( &pCh->pBookmarkWait );
-
-						ip2trace (channel, ITRC_DRAIN, 20, 1, pCh->BookmarkTimer.expires );
-						}
-						break;
-
-					// Flow control packets? Update the new credits, and if
-					// someone was waiting for output, queue him up again.
-					case STAT_FLOW:
-						pCh->outfl.room =
-							((flowStatPtr)pc)->room -
-							(pCh->outfl.asof - ((flowStatPtr)pc)->asof);
-
-						ip2trace (channel, ITRC_STFLW, 1, 1, pCh->outfl.room );
-
-						if (pCh->channelNeeds & NEED_CREDIT)
-						{
-							ip2trace (channel, ITRC_STFLW, 2, 1, pCh->channelNeeds);
-
-							pCh->channelNeeds &= ~NEED_CREDIT;
-							i2QueueNeeds(pB, pCh, NEED_INLINE);
-							if ( pCh->pTTY )
-								ip2_owake(pCh->pTTY);
-						}
-
-						ip2trace (channel, ITRC_STFLW, 3, 1, pCh->channelNeeds);
-
-						pc += sizeof(flowStat);
-						break;
-
-					/* Special packets: */
-					/* Just copy the information into the channel structure */
-
-					case STAT_STATUS:
-
-						pCh->channelStatus = *((debugStatPtr)pc);
-						pc += sizeof(debugStat);
-						break;
-
-					case STAT_TXCNT:
-
-						pCh->channelTcount = *((cntStatPtr)pc);
-						pc += sizeof(cntStat);
-						break;
-
-					case STAT_RXCNT:
-
-						pCh->channelRcount = *((cntStatPtr)pc);
-						pc += sizeof(cntStat);
-						break;
-
-					case STAT_BOXIDS:
-						pB->channelBtypes = *((bidStatPtr)pc);
-						pc += sizeof(bidStat);
-						set_baud_params(pB);
-						break;
-
-					case STAT_HWFAIL:
-						i2QueueCommands (PTYPE_INLINE, pCh, 0, 1, CMD_HW_TEST);
-						pCh->channelFail = *((failStatPtr)pc);
-						pc += sizeof(failStat);
-						break;
-
-					/* No explicit match? then
-					 * Might be an error packet...
-					 */
-					default:
-						switch (uc & STAT_MOD_ERROR)
-						{
-						case STAT_ERROR:
-							if (uc & STAT_E_PARITY) {
-								pCh->dataSetIn |= I2_PAR;
-								pCh->icount.parity++;
-							}
-							if (uc & STAT_E_FRAMING){
-								pCh->dataSetIn |= I2_FRA;
-								pCh->icount.frame++;
-							}
-							if (uc & STAT_E_OVERRUN){
-								pCh->dataSetIn |= I2_OVR;
-								pCh->icount.overrun++;
-							}
-							break;
-
-						case STAT_MODEM:
-							// the answer to DSS_NOW request (not change)
-							pCh->dataSetIn = (pCh->dataSetIn
-								& ~(I2_RI | I2_CTS | I2_DCD | I2_DSR) )
-								| xlatDss[uc & 0xf];
-							wake_up_interruptible ( &pCh->dss_now_wait );
-						default:
-							break;
-						}
-					}  /* End of switch on status type */
-					if (dss_change) {
-#ifdef USE_IQ
-						schedule_work(&pCh->tqueue_status);
-#else
-						do_status(&pCh->tqueue_status);
-#endif
-					}
-				}
-				else  /* Or else, channel is invalid */
-				{
-					// Even though the channel is invalid, we must test the
-					// status to see how much additional data it has (to be
-					// skipped)
-					switch (*pc++)
-					{
-					case STAT_FLOW:
-						pc += 4;    /* Skip the data */
-						break;
-
-					default:
-						break;
-					}
-				}
-			}  // End of while (there is still some status packet left)
-			break;
-
-		default: // Neither packet? should be impossible
-			ip2trace (ITRC_NO_PORT, ITRC_SFIFO, 5, 1,
-				PTYPE_OF(pB->i2eLeadoffWord) );
-			write_unlock_irqrestore(&pB->read_fifo_spinlock,
-					bflags);
-
-			break;
-		}  // End of switch on type of packets
-	}	/*while(board I2_HAS_INPUT)*/
-
-	ip2trace (ITRC_NO_PORT, ITRC_SFIFO, ITRC_RETURN, 0 );
-
-	// Send acknowledgement to the board even if there was no data!
-	pB->i2eOutMailWaiting |= MB_IN_STRIPPED;
-	return;
-}
-
-//******************************************************************************
-// Function:   i2Write2Fifo(pB,address,count)
-// Parameters: Pointer to a board structure, source address, byte count
-// Returns:    bytes written
-//
-// Description:
-//  Writes count bytes to board io address(implied) from source
-//  Adjusts count, leaves reserve for next time around bypass cmds
-//******************************************************************************
-static int
-i2Write2Fifo(i2eBordStrPtr pB, unsigned char *source, int count,int reserve)
-{
-	int rc = 0;
-	unsigned long flags;
-	write_lock_irqsave(&pB->write_fifo_spinlock, flags);
-	if (!pB->i2eWaitingForEmptyFifo) {
-		if (pB->i2eFifoRemains > (count+reserve)) {
-			pB->i2eFifoRemains -= count;
-			iiWriteBuf(pB, source, count);
-			pB->i2eOutMailWaiting |= MB_OUT_STUFFED;
-			rc =  count;
-		}
-	}
-	write_unlock_irqrestore(&pB->write_fifo_spinlock, flags);
-	return rc;
-}
-//******************************************************************************
-// Function:   i2StuffFifoBypass(pB)
-// Parameters: Pointer to a board structure
-// Returns:    Nothing
-//
-// Description:
-// Stuffs as many bypass commands into the fifo as possible. This is simpler
-// than stuffing data or inline commands to fifo, since we do not have
-// flow-control to deal with.
-//******************************************************************************
-static inline void
-i2StuffFifoBypass(i2eBordStrPtr pB)
-{
-	i2ChanStrPtr pCh;
-	unsigned char *pRemove;
-	unsigned short stripIndex;
-	unsigned short packetSize;
-	unsigned short paddedSize;
-	unsigned short notClogged = 1;
-	unsigned long flags;
-
-	int bailout = 1000;
-
-	// Continue processing so long as there are entries, or there is room in the
-	// fifo. Each entry represents a channel with something to do.
-	while ( --bailout && notClogged && 
-			(NULL != (pCh = i2DeQueueNeeds(pB,NEED_BYPASS))))
-	{
-		write_lock_irqsave(&pCh->Cbuf_spinlock, flags);
-		stripIndex = pCh->Cbuf_strip;
-
-		// as long as there are packets for this channel...
-
-		while (stripIndex != pCh->Cbuf_stuff) {
-			pRemove = &(pCh->Cbuf[stripIndex]);
-			packetSize = CMD_COUNT_OF(pRemove) + sizeof(i2CmdHeader);
-			paddedSize = roundup(packetSize, 2);
-
-			if (paddedSize > 0) {
-				if ( 0 == i2Write2Fifo(pB, pRemove, paddedSize,0)) {
-					notClogged = 0;	/* fifo full */
-					i2QueueNeeds(pB, pCh, NEED_BYPASS);	// Put back on queue
-					break;   // Break from the channel
-				} 
-			}
-#ifdef DEBUG_FIFO
-WriteDBGBuf("BYPS", pRemove, paddedSize);
-#endif	/* DEBUG_FIFO */
-			pB->debugBypassCount++;
-
-			pRemove += packetSize;
-			stripIndex += packetSize;
-			if (stripIndex >= CBUF_SIZE) {
-				stripIndex = 0;
-				pRemove = pCh->Cbuf;
-			}
-		}
-		// Done with this channel. Move to next, removing this one from 
-		// the queue of channels if we cleaned it out (i.e., didn't get clogged.
-		pCh->Cbuf_strip = stripIndex;
-		write_unlock_irqrestore(&pCh->Cbuf_spinlock, flags);
-	}  // Either clogged or finished all the work
-
-#ifdef IP2DEBUG_TRACE
-	if ( !bailout ) {
-		ip2trace (ITRC_NO_PORT, ITRC_ERROR, 1, 0 );
-	}
-#endif
-}
-
-//******************************************************************************
-// Function:   i2StuffFifoFlow(pB)
-// Parameters: Pointer to a board structure
-// Returns:    Nothing
-//
-// Description:
-// Stuffs as many flow control packets into the fifo as possible. This is easier
-// even than doing normal bypass commands, because there is always at most one
-// packet, already assembled, for each channel.
-//******************************************************************************
-static inline void
-i2StuffFifoFlow(i2eBordStrPtr pB)
-{
-	i2ChanStrPtr pCh;
-	unsigned short paddedSize = roundup(sizeof(flowIn), 2);
-
-	ip2trace (ITRC_NO_PORT, ITRC_SFLOW, ITRC_ENTER, 2,
-		pB->i2eFifoRemains, paddedSize );
-
-	// Continue processing so long as there are entries, or there is room in the
-	// fifo. Each entry represents a channel with something to do.
-	while ( (NULL != (pCh = i2DeQueueNeeds(pB,NEED_FLOW)))) {
-		pB->debugFlowCount++;
-
-		// NO Chan LOCK needed ???
-		if ( 0 == i2Write2Fifo(pB,(unsigned char *)&(pCh->infl),paddedSize,0)) {
-			break;
-		}
-#ifdef DEBUG_FIFO
-		WriteDBGBuf("FLOW",(unsigned char *) &(pCh->infl), paddedSize);
-#endif /* DEBUG_FIFO */
-
-	}  // Either clogged or finished all the work
-
-	ip2trace (ITRC_NO_PORT, ITRC_SFLOW, ITRC_RETURN, 0 );
-}
-
-//******************************************************************************
-// Function:   i2StuffFifoInline(pB)
-// Parameters: Pointer to a board structure
-// Returns:    Nothing
-//
-// Description:
-// Stuffs as much data and inline commands into the fifo as possible. This is
-// the most complex fifo-stuffing operation, since there if now the channel
-// flow-control issue to deal with.
-//******************************************************************************
-static inline void
-i2StuffFifoInline(i2eBordStrPtr pB)
-{
-	i2ChanStrPtr pCh;
-	unsigned char *pRemove;
-	unsigned short stripIndex;
-	unsigned short packetSize;
-	unsigned short paddedSize;
-	unsigned short notClogged = 1;
-	unsigned short flowsize;
-	unsigned long flags;
-
-	int bailout  = 1000;
-	int bailout2;
-
-	ip2trace (ITRC_NO_PORT, ITRC_SICMD, ITRC_ENTER, 3, pB->i2eFifoRemains, 
-			pB->i2Dbuf_strip, pB->i2Dbuf_stuff );
-
-	// Continue processing so long as there are entries, or there is room in the
-	// fifo. Each entry represents a channel with something to do.
-	while ( --bailout && notClogged && 
-			(NULL != (pCh = i2DeQueueNeeds(pB,NEED_INLINE))) )
-	{
-		write_lock_irqsave(&pCh->Obuf_spinlock, flags);
-		stripIndex = pCh->Obuf_strip;
-
-		ip2trace (CHANN, ITRC_SICMD, 3, 2, stripIndex, pCh->Obuf_stuff );
-
-		// as long as there are packets for this channel...
-		bailout2 = 1000;
-		while ( --bailout2 && stripIndex != pCh->Obuf_stuff) {
-			pRemove = &(pCh->Obuf[stripIndex]);
-
-			// Must determine whether this be a data or command packet to
-			// calculate correctly the header size and the amount of
-			// flow-control credit this type of packet will use.
-			if (PTYPE_OF(pRemove) == PTYPE_DATA) {
-				flowsize = DATA_COUNT_OF(pRemove);
-				packetSize = flowsize + sizeof(i2DataHeader);
-			} else {
-				flowsize = CMD_COUNT_OF(pRemove);
-				packetSize = flowsize + sizeof(i2CmdHeader);
-			}
-			flowsize = CREDIT_USAGE(flowsize);
-			paddedSize = roundup(packetSize, 2);
-
-			ip2trace (CHANN, ITRC_SICMD, 4, 2, pB->i2eFifoRemains, paddedSize );
-
-			// If we don't have enough credits from the board to send the data,
-			// flag the channel that we are waiting for flow control credit, and
-			// break out. This will clean up this channel and remove us from the
-			// queue of hot things to do.
-
-				ip2trace (CHANN, ITRC_SICMD, 5, 2, pCh->outfl.room, flowsize );
-
-			if (pCh->outfl.room <= flowsize)	{
-				// Do Not have the credits to send this packet.
-				i2QueueNeeds(pB, pCh, NEED_CREDIT);
-				notClogged = 0;
-				break;   // So to do next channel
-			}
-			if ( (paddedSize > 0) 
-				&& ( 0 == i2Write2Fifo(pB, pRemove, paddedSize, 128))) {
-				// Do Not have room in fifo to send this packet.
-				notClogged = 0;
-				i2QueueNeeds(pB, pCh, NEED_INLINE);	
-				break;   // Break from the channel
-			}
-#ifdef DEBUG_FIFO
-WriteDBGBuf("DATA", pRemove, paddedSize);
-#endif /* DEBUG_FIFO */
-			pB->debugInlineCount++;
-
-			pCh->icount.tx += flowsize;
-			// Update current credits
-			pCh->outfl.room -= flowsize;
-			pCh->outfl.asof += flowsize;
-			if (PTYPE_OF(pRemove) == PTYPE_DATA) {
-				pCh->Obuf_char_count -= DATA_COUNT_OF(pRemove);
-			}
-			pRemove += packetSize;
-			stripIndex += packetSize;
-
-			ip2trace (CHANN, ITRC_SICMD, 6, 2, stripIndex, pCh->Obuf_strip);
-
-			if (stripIndex >= OBUF_SIZE) {
-				stripIndex = 0;
-				pRemove = pCh->Obuf;
-
-				ip2trace (CHANN, ITRC_SICMD, 7, 1, stripIndex );
-
-			}
-		}	/* while */
-		if ( !bailout2 ) {
-			ip2trace (CHANN, ITRC_ERROR, 3, 0 );
-		}
-		// Done with this channel. Move to next, removing this one from the
-		// queue of channels if we cleaned it out (i.e., didn't get clogged.
-		pCh->Obuf_strip = stripIndex;
-		write_unlock_irqrestore(&pCh->Obuf_spinlock, flags);
-		if ( notClogged )
-		{
-
-			ip2trace (CHANN, ITRC_SICMD, 8, 0 );
-
-			if ( pCh->pTTY ) {
-				ip2_owake(pCh->pTTY);
-			}
-		}
-	}  // Either clogged or finished all the work
-
-	if ( !bailout ) {
-		ip2trace (ITRC_NO_PORT, ITRC_ERROR, 4, 0 );
-	}
-
-	ip2trace (ITRC_NO_PORT, ITRC_SICMD, ITRC_RETURN, 1,pB->i2Dbuf_strip);
-}
-
-//******************************************************************************
-// Function:   serviceOutgoingFifo(pB)
-// Parameters: Pointer to a board structure
-// Returns:    Nothing
-//
-// Description:
-// Helper routine to put data in the outgoing fifo, if we aren't already waiting
-// for something to be there. If the fifo has only room for a very little data,
-// go head and hit the board with a mailbox hit immediately. Otherwise, it will
-// have to happen later in the interrupt processing. Since this routine may be
-// called both at interrupt and foreground time, we must turn off interrupts
-// during the entire process.
-//******************************************************************************
-static void
-serviceOutgoingFifo(i2eBordStrPtr pB)
-{
-	// If we aren't currently waiting for the board to empty our fifo, service
-	// everything that is pending, in priority order (especially, Bypass before
-	// Inline).
-	if ( ! pB->i2eWaitingForEmptyFifo )
-	{
-		i2StuffFifoFlow(pB);
-		i2StuffFifoBypass(pB);
-		i2StuffFifoInline(pB);
-
-		iiSendPendingMail(pB);
-	} 
-}
-
-//******************************************************************************
-// Function:   i2ServiceBoard(pB)
-// Parameters: Pointer to a board structure
-// Returns:    Nothing
-//
-// Description:
-// Normally this is called from interrupt level, but there is deliberately
-// nothing in here specific to being called from interrupt level. All the
-// hardware-specific, interrupt-specific things happen at the outer levels.
-//
-// For example, a timer interrupt could drive this routine for some sort of
-// polled operation. The only requirement is that the programmer deal with any
-// atomiticity/concurrency issues that result.
-//
-// This routine responds to the board's having sent mailbox information to the
-// host (which would normally cause an interrupt). This routine reads the
-// incoming mailbox. If there is no data in it, this board did not create the
-// interrupt and/or has nothing to be done to it. (Except, if we have been
-// waiting to write mailbox data to it, we may do so.
-//
-// Based on the value in the mailbox, we may take various actions.
-//
-// No checking here of pB validity: after all, it shouldn't have been called by
-// the handler unless pB were on the list.
-//******************************************************************************
-static inline int
-i2ServiceBoard ( i2eBordStrPtr pB )
-{
-	unsigned inmail;
-	unsigned long flags;
-
-
-	/* This should be atomic because of the way we are called... */
-	if (NO_MAIL_HERE == ( inmail = pB->i2eStartMail ) ) {
-		inmail = iiGetMail(pB);
-	}
-	pB->i2eStartMail = NO_MAIL_HERE;
-
-	ip2trace (ITRC_NO_PORT, ITRC_INTR, 2, 1, inmail );
-
-	if (inmail != NO_MAIL_HERE) {
-		// If the board has gone fatal, nothing to do but hit a bit that will
-		// alert foreground tasks to protest!
-		if ( inmail & MB_FATAL_ERROR ) {
-			pB->i2eFatal = 1;
-			goto exit_i2ServiceBoard;
-		}
-
-		/* Assuming no fatal condition, we proceed to do work */
-		if ( inmail & MB_IN_STUFFED ) {
-			pB->i2eFifoInInts++;
-			i2StripFifo(pB);     /* There might be incoming packets */
-		}
-
-		if (inmail & MB_OUT_STRIPPED) {
-			pB->i2eFifoOutInts++;
-			write_lock_irqsave(&pB->write_fifo_spinlock, flags);
-			pB->i2eFifoRemains = pB->i2eFifoSize;
-			pB->i2eWaitingForEmptyFifo = 0;
-			write_unlock_irqrestore(&pB->write_fifo_spinlock,
-					flags);
-
-			ip2trace (ITRC_NO_PORT, ITRC_INTR, 30, 1, pB->i2eFifoRemains );
-
-		}
-		serviceOutgoingFifo(pB);
-	}
-
-	ip2trace (ITRC_NO_PORT, ITRC_INTR, 8, 0 );
-
-exit_i2ServiceBoard:
-
-	return 0;
-}