Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 1617 insertions, 0 deletions

diff --git a/drivers/char/rio/rioinit.c b/drivers/char/rio/rioinit.c
new file mode 100644
index 00000000000..dca941ed10c
--- /dev/null
+++ b/drivers/char/rio/rioinit.c
@@ -0,0 +1,1617 @@
+/*
+** -----------------------------------------------------------------------------
+**
+**  Perle Specialix driver for Linux
+**  Ported from existing RIO Driver for SCO sources.
+ *
+ *  (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, 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.
+ *
+ *      This program is distributed in the hope that it will be useful,
+ *      but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *      GNU General Public License for more details.
+ *
+ *      You should have received a copy of the GNU General Public License
+ *      along with this program; if not, write to the Free Software
+ *      Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+**
+**	Module		: rioinit.c
+**	SID		: 1.3
+**	Last Modified	: 11/6/98 10:33:43
+**	Retrieved	: 11/6/98 10:33:49
+**
+**  ident @(#)rioinit.c	1.3
+**
+** -----------------------------------------------------------------------------
+*/
+#ifdef SCCS_LABELS
+static char *_rioinit_c_sccs_ = "@(#)rioinit.c	1.3";
+#endif
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/errno.h>
+#include <asm/io.h>
+#include <asm/system.h>
+#include <asm/string.h>
+#include <asm/semaphore.h>
+#include <asm/uaccess.h>
+
+#include <linux/termios.h>
+#include <linux/serial.h>
+
+#include <linux/generic_serial.h>
+
+
+#include "linux_compat.h"
+#include "typdef.h"
+#include "pkt.h"
+#include "daemon.h"
+#include "rio.h"
+#include "riospace.h"
+#include "top.h"
+#include "cmdpkt.h"
+#include "map.h"
+#include "riotypes.h"
+#include "rup.h"
+#include "port.h"
+#include "riodrvr.h"
+#include "rioinfo.h"
+#include "func.h"
+#include "errors.h"
+#include "pci.h"
+
+#include "parmmap.h"
+#include "unixrup.h"
+#include "board.h"
+#include "host.h"
+#include "error.h"
+#include "phb.h"
+#include "link.h"
+#include "cmdblk.h"
+#include "route.h"
+#include "control.h"
+#include "cirrus.h"
+#include "rioioctl.h"
+#include "rio_linux.h"
+
+#undef bcopy
+#define bcopy rio_pcicopy
+
+int RIOPCIinit(struct rio_info *p, int Mode);
+
+#if 0
+static void RIOAllocateInterrupts(struct rio_info *);
+static int RIOReport(struct rio_info *);
+static void RIOStopInterrupts(struct rio_info *, int, int);
+#endif
+
+static int RIOScrub(int, BYTE *, int);
+
+#if 0
+extern int	rio_intr();
+
+/*
+**	Init time code.
+*/
+void
+rioinit( p, info )
+struct rio_info		* p;
+struct RioHostInfo	* info;
+{
+	/*
+	** Multi-Host card support - taking the easy way out - sorry !
+	** We allocate and set up the Host and Port structs when the
+	** driver is called to 'install' the first host.
+	** We check for this first 'call' by testing the RIOPortp pointer.
+	*/
+	if ( !p->RIOPortp )
+	{
+		rio_dprintk (RIO_DEBUG_INIT,  "Allocating and setting up driver data structures\n");
+
+		RIOAllocDataStructs(p);		/* allocate host/port structs */
+		RIOSetupDataStructs(p);		/* setup topology structs */
+	}
+
+	RIOInitHosts( p, info );	/* hunt down the hardware */
+
+	RIOAllocateInterrupts(p);	/* allocate interrupts */
+	RIOReport(p);			/* show what we found */
+}
+
+/*
+** Initialise the Cards 
+*/ 
+void
+RIOInitHosts(p, info)
+struct rio_info		* p;
+struct RioHostInfo	* info;
+{
+/*
+** 15.10.1998 ARG - ESIL 0762 part fix
+** If there is no ISA card definition - we always look for PCI cards.
+** As we currently only support one host card this lets an ISA card
+** definition take precedence over PLUG and PLAY.
+** No ISA card - we are PLUG and PLAY with PCI.
+*/
+
+	/*
+	** Note - for PCI both these will be zero, that's okay because
+	** RIOPCIInit() fills them in if a card is found.
+	*/
+	p->RIOHosts[p->RIONumHosts].Ivec	= info->vector;
+	p->RIOHosts[p->RIONumHosts].PaddrP	= info->location;
+
+	/*
+	** Check that we are able to accommodate another host
+	*/
+	if ( p->RIONumHosts >= RIO_HOSTS )
+	{
+		p->RIOFailed++;
+		return;
+	}
+
+	if ( info->bus & ISA_BUS )
+	{
+		rio_dprintk (RIO_DEBUG_INIT,  "initialising card %d (ISA)\n", p->RIONumHosts);
+		RIOISAinit(p, p->mode);
+	}
+	else
+	{
+		rio_dprintk (RIO_DEBUG_INIT,  "initialising card %d (PCI)\n", p->RIONumHosts);
+		RIOPCIinit(p, RIO_PCI_DEFAULT_MODE);
+	}
+
+	rio_dprintk (RIO_DEBUG_INIT,  "Total hosts initialised so far : %d\n", p->RIONumHosts);
+
+
+#ifdef FUTURE_RELEASE
+	if (p->bus & EISA_BUS)
+		/* EISA card */
+		RIOEISAinit(p, RIO_EISA_DEFAULT_MODE);
+
+	if (p->bus & MCA_BUS)
+		/* MCA card */
+		RIOMCAinit(p, RIO_MCA_DEFAULT_MODE);
+#endif
+}
+
+/*
+** go through memory for an AT host that we pass in the device info
+** structure and initialise
+*/
+void
+RIOISAinit(p, mode)
+struct rio_info *	p;
+int					mode;
+{
+
+  /* XXX Need to implement this. */
+#if 0
+	p->intr_tid = iointset(p->RIOHosts[p->RIONumHosts].Ivec,
+					(int (*)())rio_intr, (char*)p->RIONumHosts);
+
+	rio_dprintk (RIO_DEBUG_INIT,  "Set interrupt handler, intr_tid = 0x%x\n", p->intr_tid );
+
+	if (RIODoAT(p, p->RIOHosts[p->RIONumHosts].PaddrP, mode)) {
+		return;
+	}
+	else {
+		rio_dprintk (RIO_DEBUG_INIT, "RIODoAT failed\n");
+		p->RIOFailed++;
+	}
+#endif
+
+}
+
+/*
+** RIODoAT :
+**
+** Map in a boards physical address, check that the board is there,
+** test the board and if everything is okay assign the board an entry
+** in the Rio Hosts structure.
+*/
+int
+RIODoAT(p, Base, mode)
+struct rio_info *	p;
+int		Base;
+int		mode;
+{
+#define	FOUND		1
+#define NOT_FOUND	0
+
+	caddr_t		cardAddr;
+
+	/*
+	** Check to see if we actually have a board at this physical address.
+	*/
+	if ((cardAddr = RIOCheckForATCard(Base)) != 0) {
+		/*
+		** Now test the board to see if it is working.
+		*/
+		if (RIOBoardTest(Base, cardAddr, RIO_AT, 0) == RIO_SUCCESS) {
+			/*
+			** Fill out a slot in the Rio host structure.
+			*/
+			if (RIOAssignAT(p, Base, cardAddr, mode)) {
+				return(FOUND);
+			}
+		}
+		RIOMapout(Base, RIO_AT_MEM_SIZE, cardAddr);
+	}
+	return(NOT_FOUND);
+}
+
+caddr_t
+RIOCheckForATCard(Base)
+int		Base;
+{
+	int				off;
+	struct DpRam	*cardp;		/* (Points at the host) */
+	caddr_t			virtAddr;
+	unsigned char			RIOSigTab[24];
+/*
+** Table of values to search for as prom signature of a host card
+*/
+	strcpy(RIOSigTab, "JBJGPGGHINSMJPJR");
+
+	/*
+	** Hey! Yes, You reading this code! Yo, grab a load a this:
+	**
+	** IF the card is using WORD MODE rather than BYTE MODE
+	** then it will occupy 128K of PHYSICAL memory area. So,
+	** you might think that the following Mapin is wrong. Well,
+	** it isn't, because the SECOND 64K of occupied space is an
+	** EXACT COPY of the FIRST 64K. (good?), so, we need only
+	** map it in in one 64K block.
+	*/
+	if (RIOMapin(Base, RIO_AT_MEM_SIZE, &virtAddr) == -1) {
+		rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Couldn't map the board in!\n");
+		return((caddr_t)0);
+	}
+
+	/*
+	** virtAddr points to the DP ram of the system.
+	** We now cast this to a pointer to a RIO Host,
+	** and have a rummage about in the PROM.
+	*/
+	cardp = (struct DpRam *)virtAddr;
+
+	for (off=0; RIOSigTab[off]; off++) {
+		if ((RBYTE(cardp->DpSignature[off]) & 0xFF) != RIOSigTab[off]) {
+			/*
+			** Signature mismatch - card not at this address
+			*/
+			RIOMapout(Base, RIO_AT_MEM_SIZE, virtAddr);
+			rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Couldn't match the signature 0x%x 0x%x!\n",
+						(int)cardp, off);
+			return((caddr_t)0);
+		}
+	}
+
+	/*
+	** If we get here then we must have found a valid board so return
+	** its virtual address.
+	*/
+	return(virtAddr);
+}
+#endif
+
+/**
+** RIOAssignAT :
+**
+** Fill out the fields in the p->RIOHosts structure now we know we know
+** we have a board present.
+**
+** bits < 0 indicates 8 bit operation requested,
+** bits > 0 indicates 16 bit operation.
+*/
+int
+RIOAssignAT(p, Base, virtAddr, mode)
+struct rio_info *	p;
+int		Base;
+caddr_t	virtAddr;
+int		mode;
+{
+	int		bits;
+	struct DpRam *cardp = (struct DpRam *)virtAddr;
+
+	if ((Base < ONE_MEG) || (mode & BYTE_ACCESS_MODE))
+		bits = BYTE_OPERATION;
+	else
+		bits = WORD_OPERATION;
+
+	/*
+	** Board has passed its scrub test. Fill in all the
+	** transient stuff.
+	*/
+	p->RIOHosts[p->RIONumHosts].Caddr	= virtAddr;
+	p->RIOHosts[p->RIONumHosts].CardP	= (struct DpRam *)virtAddr;
+
+	/*
+	** Revision 01 AT host cards don't support WORD operations,
+	*/
+	if ( RBYTE(cardp->DpRevision) == 01 )
+		bits = BYTE_OPERATION;
+
+	p->RIOHosts[p->RIONumHosts].Type = RIO_AT;
+	p->RIOHosts[p->RIONumHosts].Copy = bcopy;
+											/* set this later */
+	p->RIOHosts[p->RIONumHosts].Slot = -1;
+	p->RIOHosts[p->RIONumHosts].Mode = SLOW_LINKS | SLOW_AT_BUS | bits;
+	WBYTE(p->RIOHosts[p->RIONumHosts].Control, 
+			BOOT_FROM_RAM | EXTERNAL_BUS_OFF | 
+			p->RIOHosts[p->RIONumHosts].Mode | 
+			INTERRUPT_DISABLE );
+	WBYTE(p->RIOHosts[p->RIONumHosts].ResetInt,0xff);
+	WBYTE(p->RIOHosts[p->RIONumHosts].Control,
+			BOOT_FROM_RAM | EXTERNAL_BUS_OFF | 
+			p->RIOHosts[p->RIONumHosts].Mode |
+			INTERRUPT_DISABLE );
+	WBYTE(p->RIOHosts[p->RIONumHosts].ResetInt,0xff);
+	p->RIOHosts[p->RIONumHosts].UniqueNum =
+		((RBYTE(p->RIOHosts[p->RIONumHosts].Unique[0])&0xFF)<<0)|
+		((RBYTE(p->RIOHosts[p->RIONumHosts].Unique[1])&0xFF)<<8)|
+		((RBYTE(p->RIOHosts[p->RIONumHosts].Unique[2])&0xFF)<<16)|
+		((RBYTE(p->RIOHosts[p->RIONumHosts].Unique[3])&0xFF)<<24);
+	rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Uniquenum 0x%x\n",p->RIOHosts[p->RIONumHosts].UniqueNum);
+
+	p->RIONumHosts++;
+	rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Tests Passed at 0x%x\n", Base);
+	return(1);
+}
+#if 0
+#ifdef FUTURE_RELEASE
+int RIOMCAinit(int Mode)
+{
+	uchar SlotNumber;
+	caddr_t Caddr;
+	uint	Paddr;
+	uint	Ivec;
+	int	 Handle;
+	int	 ret = 0;
+
+	/*
+	** Valid mode information for MCA cards
+	** is only FAST LINKS
+	*/
+	Mode = (Mode & FAST_LINKS) ? McaTpFastLinks : McaTpSlowLinks;
+	rio_dprintk (RIO_DEBUG_INIT, "RIOMCAinit(%d)\n",Mode);
+
+
+	/*
+	** Check out each of the slots
+	*/
+	for (SlotNumber = 0; SlotNumber < McaMaxSlots; SlotNumber++) {
+	/*
+	** Enable the slot we want to talk to
+	*/
+	outb( McaSlotSelect, SlotNumber | McaSlotEnable );
+
+	/*
+	** Read the ID word from the slot
+	*/
+	if (((inb(McaIdHigh)<< 8)|inb(McaIdLow)) == McaRIOId)
+	{
+		rio_dprintk (RIO_DEBUG_INIT, "Potential MCA card in slot %d\n", SlotNumber);
+
+		/*
+		** Card appears to be a RIO MCA card!
+		*/
+		RIOMachineType |= (1<<RIO_MCA);
+
+		/*
+		** Just check we haven't found too many wonderful objects
+		*/
+		if ( RIONumHosts >= RIO_HOSTS )
+		{
+		Rprintf(RIOMesgTooManyCards);
+		return(ret);
+		}
+
+		/*
+		** McaIrqEnable contains the interrupt vector, and a card
+		** enable bit.
+		*/
+		Ivec = inb(McaIrqEnable);
+
+		rio_dprintk (RIO_DEBUG_INIT, "Ivec is %x\n", Ivec);
+
+		switch ( Ivec & McaIrqMask )
+		{
+		case McaIrq9:
+		rio_dprintk (RIO_DEBUG_INIT, "IRQ9\n");
+		break;
+		case McaIrq3:
+		rio_dprintk (RIO_DEBUG_INIT, "IRQ3\n");
+		break;
+		case McaIrq4:
+		rio_dprintk (RIO_DEBUG_INIT, "IRQ4\n");
+		break;
+		case McaIrq7:
+		rio_dprintk (RIO_DEBUG_INIT, "IRQ7\n");
+		break;
+		case McaIrq10:
+		rio_dprintk (RIO_DEBUG_INIT, "IRQ10\n");
+		break;
+		case McaIrq11:
+		rio_dprintk (RIO_DEBUG_INIT, "IRQ11\n");
+		break;
+		case McaIrq12:
+		rio_dprintk (RIO_DEBUG_INIT, "IRQ12\n");
+		break;
+		case McaIrq15:
+		rio_dprintk (RIO_DEBUG_INIT, "IRQ15\n");
+		break;
+		}
+
+		/*
+		** If the card enable bit isn't set, then set it!
+		*/
+		if ((Ivec & McaCardEnable) != McaCardEnable) {
+			rio_dprintk (RIO_DEBUG_INIT, "McaCardEnable not set - setting!\n");
+			outb(McaIrqEnable,Ivec|McaCardEnable);
+		} else
+			rio_dprintk (RIO_DEBUG_INIT, "McaCardEnable already set\n");
+
+		/*
+		** Convert the IRQ enable mask into something useful
+		*/
+		Ivec = RIOMcaToIvec[Ivec & McaIrqMask];
+
+		/*
+		** Find the physical address
+		*/
+		rio_dprintk (RIO_DEBUG_INIT, "inb(McaMemory) is %x\n", inb(McaMemory));
+		Paddr = McaAddress(inb(McaMemory));
+
+		rio_dprintk (RIO_DEBUG_INIT, "MCA card has Ivec %d Addr %x\n", Ivec, Paddr);
+
+		if ( Paddr != 0 )
+		{
+
+		/*
+		** Tell the memory mapper that we want to talk to it
+		*/
+		Handle = RIOMapin( Paddr, RIO_MCA_MEM_SIZE, &Caddr );
+
+		if ( Handle == -1 ) {
+			rio_dprintk (RIO_DEBUG_INIT, "Couldn't map %d bytes at %x\n", RIO_MCA_MEM_SIZE, Paddr;
+			continue;
+		}
+
+		rio_dprintk (RIO_DEBUG_INIT, "Board mapped to vaddr 0x%x\n", Caddr);
+
+		/*
+		** And check that it is actually there!
+		*/
+		if ( RIOBoardTest( Paddr,Caddr,RIO_MCA,SlotNumber ) == RIO_SUCCESS )
+		{
+			rio_dprintk (RIO_DEBUG_INIT, "Board has passed test\n");
+			rio_dprintk (RIO_DEBUG_INIT, "Slot %d. Type %d. Paddr 0x%x. Caddr 0x%x. Mode 0x%x.\n",
+			                            SlotNumber, RIO_MCA, Paddr, Caddr, Mode);
+
+			/*
+			** Board has passed its scrub test. Fill in all the
+			** transient stuff.
+			*/
+			p->RIOHosts[RIONumHosts].Slot	 = SlotNumber;
+			p->RIOHosts[RIONumHosts].Ivec	 = Ivec;
+			p->RIOHosts[RIONumHosts].Type	 = RIO_MCA;
+			p->RIOHosts[RIONumHosts].Copy	 = bcopy;
+			p->RIOHosts[RIONumHosts].PaddrP   = Paddr;
+			p->RIOHosts[RIONumHosts].Caddr	= Caddr;
+			p->RIOHosts[RIONumHosts].CardP	= (struct DpRam *)Caddr;
+			p->RIOHosts[RIONumHosts].Mode	 = Mode;
+			WBYTE(p->RIOHosts[p->RIONumHosts].ResetInt , 0xff);
+			p->RIOHosts[RIONumHosts].UniqueNum =
+			((RBYTE(p->RIOHosts[RIONumHosts].Unique[0])&0xFF)<<0)|
+						((RBYTE(p->RIOHosts[RIONumHosts].Unique[1])&0xFF)<<8)|
+			((RBYTE(p->RIOHosts[RIONumHosts].Unique[2])&0xFF)<<16)|
+			((RBYTE(p->RIOHosts[RIONumHosts].Unique[3])&0xFF)<<24);
+			RIONumHosts++;
+			ret++;
+		}
+		else
+		{
+			/*
+			** It failed the test, so ignore it.
+			*/
+			rio_dprintk (RIO_DEBUG_INIT, "TEST FAILED\n");
+			RIOMapout(Paddr, RIO_MCA_MEM_SIZE, Caddr );
+		}
+		}
+		else
+		{
+		rio_dprintk (RIO_DEBUG_INIT, "Slot %d - Paddr zero!\n", SlotNumber);
+		}
+	}
+	else
+	{
+		rio_dprintk (RIO_DEBUG_INIT, "Slot %d NOT RIO\n", SlotNumber);
+	}
+	}
+	/*
+	** Now we have checked all the slots, turn off the MCA slot selector
+	*/
+	outb(McaSlotSelect,0);
+	rio_dprintk (RIO_DEBUG_INIT, "Slot %d NOT RIO\n", SlotNumber);
+	return ret;
+}
+
+int RIOEISAinit( int Mode )
+{
+	static int EISADone = 0;
+	uint Paddr;
+	int PollIntMixMsgDone = 0;
+	caddr_t Caddr;
+	ushort Ident;
+	uchar EisaSlot;
+	uchar Ivec;
+	int ret = 0;
+
+	/*
+	** The only valid mode information for EISA hosts is fast or slow
+	** links.
+	*/
+	Mode = (Mode & FAST_LINKS) ? EISA_TP_FAST_LINKS : EISA_TP_SLOW_LINKS;
+
+	if ( EISADone )
+	{
+		rio_dprintk (RIO_DEBUG_INIT, "RIOEISAinit() - already done, return.\n");
+		return(0);
+	}
+
+	EISADone++;
+
+	rio_dprintk (RIO_DEBUG_INIT, "RIOEISAinit()\n");
+
+
+	/*
+	** First check all cards to see if ANY are set for polled mode operation.
+	** If so, set ALL to polled.
+	*/
+
+	for ( EisaSlot=1; EisaSlot<=RIO_MAX_EISA_SLOTS; EisaSlot++ )
+	{
+	Ident = (INBZ(EisaSlot,EISA_PRODUCT_IDENT_HI)<<8) |
+		 INBZ(EisaSlot,EISA_PRODUCT_IDENT_LO);
+
+	if ( Ident == RIO_EISA_IDENT )
+	{
+		rio_dprintk (RIO_DEBUG_INIT, "Found Specialix product\n");
+
+		if ( INBZ(EisaSlot,EISA_PRODUCT_NUMBER) != RIO_EISA_PRODUCT_CODE )
+		{
+		rio_dprintk (RIO_DEBUG_INIT, "Not Specialix RIO - Product number %x\n",
+						INBZ(EisaSlot, EISA_PRODUCT_NUMBER));
+		continue;  /* next slot */
+		}
+		/*
+		** Its a Specialix RIO!
+		*/
+		rio_dprintk (RIO_DEBUG_INIT, "RIO Revision %d\n",
+					INBZ(EisaSlot, EISA_REVISION_NUMBER));
+		
+		RIOMachineType |= (1<<RIO_EISA);
+
+		/*
+		** Just check we haven't found too many wonderful objects
+		*/
+		if ( RIONumHosts >= RIO_HOSTS )
+		{
+		Rprintf(RIOMesgTooManyCards);
+		return 0;
+		}
+
+		/*
+		** Ensure that the enable bit is set!
+		*/
+		OUTBZ( EisaSlot, EISA_ENABLE, RIO_EISA_ENABLE_BIT );
+
+		/*
+		** EISA_INTERRUPT_VEC contains the interrupt vector.
+		*/
+		Ivec = INBZ(EisaSlot,EISA_INTERRUPT_VEC);
+
+#ifdef RIODEBUG
+		switch ( Ivec & EISA_INTERRUPT_MASK )
+		{
+		case EISA_IRQ_3:
+			rio_dprintk (RIO_DEBUG_INIT, "EISA IRQ 3\n");
+		break;
+		case EISA_IRQ_4:
+			rio_dprintk (RIO_DEBUG_INIT, "EISA IRQ 4\n");
+		break;
+		case EISA_IRQ_5:
+			rio_dprintk (RIO_DEBUG_INIT, "EISA IRQ 5\n");
+		break;
+		case EISA_IRQ_6:
+			rio_dprintk (RIO_DEBUG_INIT, "EISA IRQ 6\n");
+		break;
+		case EISA_IRQ_7:
+			rio_dprintk (RIO_DEBUG_INIT, "EISA IRQ 7\n");
+		break;
+		case EISA_IRQ_9:
+			rio_dprintk (RIO_DEBUG_INIT, "EISA IRQ 9\n");
+		break;
+		case EISA_IRQ_10:
+			rio_dprintk (RIO_DEBUG_INIT, "EISA IRQ 10\n");
+		break;
+		case EISA_IRQ_11:
+			rio_dprintk (RIO_DEBUG_INIT, "EISA IRQ 11\n");
+		break;
+		case EISA_IRQ_12:
+			rio_dprintk (RIO_DEBUG_INIT, "EISA IRQ 12\n");
+		break;
+		case EISA_IRQ_14:
+			rio_dprintk (RIO_DEBUG_INIT, "EISA IRQ 14\n");
+		break;
+		case EISA_IRQ_15:
+			rio_dprintk (RIO_DEBUG_INIT, "EISA IRQ 15\n");
+		break;
+		case EISA_POLLED:
+			rio_dprintk (RIO_DEBUG_INIT, "EISA POLLED\n");
+		break;
+		default:
+			rio_dprintk (RIO_DEBUG_INIT, NULL,DBG_INIT|DBG_FAIL,"Shagged interrupt number!\n");
+		Ivec &= EISA_CONTROL_MASK;
+		}
+#endif
+
+		if ( (Ivec & EISA_INTERRUPT_MASK) ==
+		 EISA_POLLED )
+		{
+		RIOWillPoll = 1;
+		break;		/* From EisaSlot loop */
+		}
+	}
+	}
+
+	/*
+	** Do it all again now we know whether to change all cards to polled
+	** mode or not
+	*/
+
+	for ( EisaSlot=1; EisaSlot<=RIO_MAX_EISA_SLOTS; EisaSlot++ )
+	{
+	Ident = (INBZ(EisaSlot,EISA_PRODUCT_IDENT_HI)<<8) |
+		 INBZ(EisaSlot,EISA_PRODUCT_IDENT_LO);
+
+	if ( Ident == RIO_EISA_IDENT )
+	{
+		if ( INBZ(EisaSlot,EISA_PRODUCT_NUMBER) != RIO_EISA_PRODUCT_CODE )
+		continue;  /* next slot */
+
+		/*
+		** Its a Specialix RIO!
+		*/
+		
+		/*
+		** Ensure that the enable bit is set!
+		*/
+		OUTBZ( EisaSlot, EISA_ENABLE, RIO_EISA_ENABLE_BIT );
+
+		/*
+		** EISA_INTERRUPT_VEC contains the interrupt vector.
+		*/
+		Ivec = INBZ(EisaSlot,EISA_INTERRUPT_VEC);
+
+		if ( RIOWillPoll )
+		{
+			/*
+			** If we are going to operate in polled mode, but this
+			** board is configured to be interrupt driven, display
+			** the message explaining the situation to the punter,
+			** assuming we haven't already done so.
+			*/
+
+			if ( !PollIntMixMsgDone &&
+			 (Ivec & EISA_INTERRUPT_MASK) != EISA_POLLED )
+			{
+			Rprintf(RIOMesgAllPolled);
+			PollIntMixMsgDone = 1;
+			}
+
+			/*
+			** Ungraciously ignore whatever the board reports as its
+			** interrupt vector...
+			*/
+
+			Ivec &= ~EISA_INTERRUPT_MASK;
+
+			/*
+			** ...and force it to dance to the poll tune.
+			*/
+
+			Ivec |= EISA_POLLED;
+		}
+
+		/*
+		** Convert the IRQ enable mask into something useful (0-15)
+		*/
+		Ivec = RIOEisaToIvec(Ivec);
+
+		rio_dprintk (RIO_DEBUG_INIT, "EISA host in slot %d has Ivec 0x%x\n",
+		 EisaSlot, Ivec);
+
+		/*
+		** Find the physical address
+		*/
+		Paddr = (INBZ(EisaSlot,EISA_MEMORY_BASE_HI)<<24) |
+				(INBZ(EisaSlot,EISA_MEMORY_BASE_LO)<<16);
+
+		rio_dprintk (RIO_DEBUG_INIT, "EISA card has Ivec %d Addr %x\n", Ivec, Paddr);
+
+		if ( Paddr == 0 )
+		{
+		rio_dprintk (RIO_DEBUG_INIT,
+		 "Board in slot %d configured for address zero!\n", EisaSlot);
+		continue;
+		}
+
+		/*
+		** Tell the memory mapper that we want to talk to it
+		*/
+		rio_dprintk (RIO_DEBUG_INIT, "About to map EISA card \n");
+
+		if (RIOMapin( Paddr, RIO_EISA_MEM_SIZE, &Caddr) == -1) {
+		rio_dprintk (RIO_DEBUG_INIT, "Couldn't map %d bytes at %x\n",
+							RIO_EISA_MEM_SIZE,Paddr);
+		continue;
+		}
+
+		rio_dprintk (RIO_DEBUG_INIT, "Board mapped to vaddr 0x%x\n", Caddr);
+
+		/*
+		** And check that it is actually there!
+		*/
+		if ( RIOBoardTest( Paddr,Caddr,RIO_EISA,EisaSlot) == RIO_SUCCESS )
+			{
+		rio_dprintk (RIO_DEBUG_INIT, "Board has passed test\n");
+		rio_dprintk (RIO_DEBUG_INIT, 
+		"Slot %d. Ivec %d. Type %d. Paddr 0x%x. Caddr 0x%x. Mode 0x%x.\n",
+			EisaSlot,Ivec,RIO_EISA,Paddr,Caddr,Mode);
+
+		/*
+		** Board has passed its scrub test. Fill in all the
+		** transient stuff.
+		*/
+		p->RIOHosts[RIONumHosts].Slot	 = EisaSlot;
+		p->RIOHosts[RIONumHosts].Ivec	 = Ivec;
+		p->RIOHosts[RIONumHosts].Type	 = RIO_EISA;
+		p->RIOHosts[RIONumHosts].Copy	 = bcopy;
+				p->RIOHosts[RIONumHosts].PaddrP   = Paddr;
+				p->RIOHosts[RIONumHosts].Caddr	= Caddr;
+		p->RIOHosts[RIONumHosts].CardP	= (struct DpRam *)Caddr;
+				p->RIOHosts[RIONumHosts].Mode	 = Mode;
+		/*
+		** because the EISA prom is mapped into IO space, we
+		** need to copy the unqiue number into the memory area
+		** that it would have occupied, so that the download
+		** code can determine its ID and card type.
+		*/
+	 WBYTE(p->RIOHosts[RIONumHosts].Unique[0],INBZ(EisaSlot,EISA_UNIQUE_NUM_0));
+	 WBYTE(p->RIOHosts[RIONumHosts].Unique[1],INBZ(EisaSlot,EISA_UNIQUE_NUM_1));
+	 WBYTE(p->RIOHosts[RIONumHosts].Unique[2],INBZ(EisaSlot,EISA_UNIQUE_NUM_2));
+	 WBYTE(p->RIOHosts[RIONumHosts].Unique[3],INBZ(EisaSlot,EISA_UNIQUE_NUM_3));
+		p->RIOHosts[RIONumHosts].UniqueNum =
+			((RBYTE(p->RIOHosts[RIONumHosts].Unique[0])&0xFF)<<0)|
+						((RBYTE(p->RIOHosts[RIONumHosts].Unique[1])&0xFF)<<8)|
+			((RBYTE(p->RIOHosts[RIONumHosts].Unique[2])&0xFF)<<16)|
+			((RBYTE(p->RIOHosts[RIONumHosts].Unique[3])&0xFF)<<24);
+		INBZ(EisaSlot,EISA_INTERRUPT_RESET);
+				RIONumHosts++;
+		ret++;
+			}
+		else
+		{
+		/*
+		** It failed the test, so ignore it.
+		*/
+		rio_dprintk (RIO_DEBUG_INIT, "TEST FAILED\n");
+
+		RIOMapout(Paddr, RIO_EISA_MEM_SIZE, Caddr );
+		}
+	}
+	}
+	if (RIOMachineType & RIO_EISA)
+	return ret+1;
+	return ret;
+}
+#endif
+
+
+#ifndef linux
+
+#define CONFIG_ADDRESS	0xcf8
+#define CONFIG_DATA		0xcfc
+#define FORWARD_REG		0xcfa
+
+
+static int
+read_config(int bus_number, int device_num, int r_number) 
+{
+	unsigned int cav;
+	unsigned int val;
+
+/*
+   Build config_address_value:
+
+      31        24 23        16 15      11 10  8 7        0 
+      ------------------------------------------------------
+      |1| 0000000 | bus_number | device # | 000 | register |
+      ------------------------------------------------------
+*/
+
+	cav = r_number & 0xff;
+	cav |= ((device_num & 0x1f) << 11);
+	cav |= ((bus_number & 0xff) << 16);
+	cav |= 0x80000000; /* Enable bit */
+	outpd(CONFIG_ADDRESS,cav);
+	val = inpd(CONFIG_DATA);
+	outpd(CONFIG_ADDRESS,0);
+	return val;
+}
+
+static
+write_config(bus_number,device_num,r_number,val) 
+{
+	unsigned int cav;
+
+/*
+   Build config_address_value:
+
+      31        24 23        16 15      11 10  8 7        0 
+      ------------------------------------------------------
+      |1| 0000000 | bus_number | device # | 000 | register |
+      ------------------------------------------------------
+*/
+
+	cav = r_number & 0xff;
+	cav |= ((device_num & 0x1f) << 11);
+	cav |= ((bus_number & 0xff) << 16);
+	cav |= 0x80000000; /* Enable bit */
+	outpd(CONFIG_ADDRESS, cav);
+	outpd(CONFIG_DATA, val);
+	outpd(CONFIG_ADDRESS, 0);
+	return val;
+}
+#else
+/* XXX Implement these... */
+static int
+read_config(int bus_number, int device_num, int r_number) 
+{
+  return 0;
+}
+
+static int
+write_config(int bus_number, int device_num, int r_number) 
+{
+  return 0;
+}
+
+#endif
+
+int
+RIOPCIinit(p, Mode)
+struct rio_info	*p;
+int 		Mode;
+{
+	#define MAX_PCI_SLOT		32
+	#define RIO_PCI_JET_CARD	0x200011CB
+
+	static int	slot;	/* count of machine's PCI slots searched so far */
+	caddr_t		Caddr;	/* Virtual address of the current PCI host card. */
+	unsigned char	Ivec;	/* interrupt vector for the current PCI host */
+	unsigned long	Paddr;	/* Physical address for the current PCI host */
+	int		Handle;	/* Handle to Virtual memory allocated for current PCI host */
+
+
+	rio_dprintk (RIO_DEBUG_INIT,  "Search for a RIO PCI card - start at slot %d\n", slot);
+
+	/*
+	** Initialise the search status
+	*/
+	p->RIOLastPCISearch	= RIO_FAIL;
+
+	while ( (slot < MAX_PCI_SLOT) & (p->RIOLastPCISearch != RIO_SUCCESS) )
+	{
+		rio_dprintk (RIO_DEBUG_INIT,  "Currently testing slot %d\n", slot);
+
+		if (read_config(0,slot,0) == RIO_PCI_JET_CARD) {
+			p->RIOHosts[p->RIONumHosts].Ivec = 0;
+			Paddr = read_config(0,slot,0x18);
+			Paddr = Paddr - (Paddr & 0x1); /* Mask off the io bit */
+
+			if ( (Paddr == 0) || ((Paddr & 0xffff0000) == 0xffff0000) ) {
+				rio_dprintk (RIO_DEBUG_INIT,  "Goofed up slot\n");	/* what! */
+				slot++;
+				continue;
+			}
+
+			p->RIOHosts[p->RIONumHosts].PaddrP = Paddr;
+			Ivec = (read_config(0,slot,0x3c) & 0xff);
+
+			rio_dprintk (RIO_DEBUG_INIT,  "PCI Host at 0x%x, Intr %d\n", (int)Paddr, Ivec);
+
+			Handle = RIOMapin( Paddr, RIO_PCI_MEM_SIZE, &Caddr );
+			if (Handle == -1) {
+				rio_dprintk (RIO_DEBUG_INIT,  "Couldn't map %d bytes at 0x%x\n", RIO_PCI_MEM_SIZE, (int)Paddr);
+				slot++;
+				continue;
+			}
+			p->RIOHosts[p->RIONumHosts].Ivec = Ivec + 32;
+			p->intr_tid = iointset(p->RIOHosts[p->RIONumHosts].Ivec,
+						(int (*)())rio_intr, (char *)p->RIONumHosts);
+			if (RIOBoardTest( Paddr, Caddr, RIO_PCI, 0 ) == RIO_SUCCESS) {
+				rio_dprintk (RIO_DEBUG_INIT, ("Board has passed test\n");
+				rio_dprintk (RIO_DEBUG_INIT, ("Paddr 0x%x. Caddr 0x%x. Mode 0x%x.\n", Paddr, Caddr, Mode);
+
+				/*
+				** Board has passed its scrub test. Fill in all the
+				** transient stuff.
+				*/
+				p->RIOHosts[p->RIONumHosts].Slot	   = 0;
+				p->RIOHosts[p->RIONumHosts].Ivec	   = Ivec + 32;
+				p->RIOHosts[p->RIONumHosts].Type	   = RIO_PCI;
+				p->RIOHosts[p->RIONumHosts].Copy	   = rio_pcicopy; 
+				p->RIOHosts[p->RIONumHosts].PaddrP	   = Paddr;
+				p->RIOHosts[p->RIONumHosts].Caddr	   = Caddr;
+				p->RIOHosts[p->RIONumHosts].CardP	   = (struct DpRam *)Caddr;
+				p->RIOHosts[p->RIONumHosts].Mode	   = Mode;
+
+#if 0
+				WBYTE(p->RIOHosts[p->RIONumHosts].Control, 
+						BOOT_FROM_RAM | EXTERNAL_BUS_OFF | 
+						p->RIOHosts[p->RIONumHosts].Mode | 
+						INTERRUPT_DISABLE );
+				WBYTE(p->RIOHosts[p->RIONumHosts].ResetInt,0xff);
+				WBYTE(p->RIOHosts[p->RIONumHosts].Control,
+						BOOT_FROM_RAM | EXTERNAL_BUS_OFF | 
+						p->RIOHosts[p->RIONumHosts].Mode |
+						INTERRUPT_DISABLE );
+				WBYTE(p->RIOHosts[p->RIONumHosts].ResetInt,0xff);
+#else
+				WBYTE(p->RIOHosts[p->RIONumHosts].ResetInt, 0xff);
+#endif
+				p->RIOHosts[p->RIONumHosts].UniqueNum  =
+					((RBYTE(p->RIOHosts[p->RIONumHosts].Unique[0])&0xFF)<<0)|
+					((RBYTE(p->RIOHosts[p->RIONumHosts].Unique[1])&0xFF)<<8)|
+					((RBYTE(p->RIOHosts[p->RIONumHosts].Unique[2])&0xFF)<<16)|
+					((RBYTE(p->RIOHosts[p->RIONumHosts].Unique[3])&0xFF)<<24);
+
+				rio_dprintk (RIO_DEBUG_INIT, "Unique no 0x%x.\n", 
+				    p->RIOHosts[p->RIONumHosts].UniqueNum);
+
+				p->RIOLastPCISearch = RIO_SUCCESS;
+				p->RIONumHosts++;
+			}
+		}
+		slot++;
+	}
+
+	if ( slot >= MAX_PCI_SLOT ) {
+		rio_dprintk (RIO_DEBUG_INIT,  "All %d PCI slots have tested for RIO cards !!!\n",
+			     MAX_PCI_SLOT);
+	}
+
+
+	/*
+	** I don't think we want to do this anymore
+	**
+
+	if (!p->RIOLastPCISearch == RIO_FAIL ) {
+		p->RIOFailed++;
+	}
+
+	**
+	*/
+}
+
+#ifdef FUTURE_RELEASE
+void riohalt( void )
+{
+	int host;
+	for ( host=0; host<p->RIONumHosts; host++ )
+	{
+		rio_dprintk (RIO_DEBUG_INIT, "Stop host %d\n", host);
+		(void)RIOBoardTest( p->RIOHosts[host].PaddrP, p->RIOHosts[host].Caddr, p->RIOHosts[host].Type,p->RIOHosts[host].Slot );
+	}
+}
+#endif
+#endif
+
+static	uchar	val[] = {
+#ifdef VERY_LONG_TEST
+	  0x00, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80,
+	  0xa5, 0xff, 0x5a, 0x00, 0xff, 0xc9, 0x36, 
+#endif
+	  0xff, 0x00, 0x00 };
+
+#define	TEST_END sizeof(val)
+
+/*
+** RAM test a board. 
+** Nothing too complicated, just enough to check it out.
+*/
+int
+RIOBoardTest(paddr, caddr, type, slot)
+paddr_t	paddr;
+caddr_t	caddr;
+uchar	type;
+int		slot;
+{
+	struct DpRam *DpRam = (struct DpRam *)caddr;
+	char *ram[4];
+	int  size[4];
+	int  op, bank;
+	int  nbanks;
+
+	rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Reset host type=%d, DpRam=0x%x, slot=%d\n",
+			type,(int)DpRam, slot);
+
+	RIOHostReset(type, DpRam, slot);
+
+	/*
+	** Scrub the memory. This comes in several banks:
+	** DPsram1	- 7000h bytes
+	** DPsram2	- 200h  bytes
+	** DPsram3	- 7000h bytes
+	** scratch	- 1000h bytes
+	*/
+
+	rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Setup ram/size arrays\n");
+
+	size[0] = DP_SRAM1_SIZE;
+	size[1] = DP_SRAM2_SIZE;
+	size[2] = DP_SRAM3_SIZE;
+	size[3] = DP_SCRATCH_SIZE;
+
+	ram[0] = (char *)&DpRam->DpSram1[0];
+	ram[1] = (char *)&DpRam->DpSram2[0];
+	ram[2] = (char *)&DpRam->DpSram3[0];
+	nbanks = (type == RIO_PCI) ? 3 : 4;
+	if (nbanks == 4)
+		ram[3] = (char *)&DpRam->DpScratch[0];
+
+
+	if (nbanks == 3) {
+		rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Memory: 0x%x(0x%x), 0x%x(0x%x), 0x%x(0x%x)\n",
+				(int)ram[0], size[0], (int)ram[1], size[1], (int)ram[2], size[2]);
+	} else {
+		rio_dprintk (RIO_DEBUG_INIT, "RIO-init: 0x%x(0x%x), 0x%x(0x%x), 0x%x(0x%x), 0x%x(0x%x)\n",
+			(int)ram[0], size[0], (int)ram[1], size[1], (int)ram[2], size[2], (int)ram[3], 
+					size[3]);
+	}
+
+	/*
+	** This scrub operation will test for crosstalk between
+	** banks. TEST_END is a magic number, and relates to the offset
+	** within the 'val' array used by Scrub.
+	*/
+	for (op=0; op<TEST_END; op++) {
+		for (bank=0; bank<nbanks; bank++) {
+			if (RIOScrub(op, (BYTE *)ram[bank], size[bank]) == RIO_FAIL) {
+				rio_dprintk (RIO_DEBUG_INIT, "RIO-init: RIOScrub band %d, op %d failed\n", 
+							bank, op);
+				return RIO_FAIL;
+			}
+		}
+	}
+
+	rio_dprintk (RIO_DEBUG_INIT, "Test completed\n");
+	return RIO_SUCCESS;
+}
+
+
+/*
+** Scrub an area of RAM.
+** Define PRETEST and POSTTEST for a more thorough checking of the
+** state of the memory.
+** Call with op set to an index into the above 'val' array to determine
+** which value will be written into memory.
+** Call with op set to zero means that the RAM will not be read and checked
+** before it is written.
+** Call with op not zero, and the RAM will be read and compated with val[op-1]
+** to check that the data from the previous phase was retained.
+*/
+static int
+RIOScrub(op, ram, size)
+int		op;
+BYTE *	ram;
+int		size; 
+{
+	int				off;
+	unsigned char	oldbyte;
+	unsigned char	newbyte;
+	unsigned char	invbyte;
+	unsigned short	oldword;
+	unsigned short	newword;
+	unsigned short	invword;
+	unsigned short	swapword;
+
+	if (op) {
+		oldbyte = val[op-1];
+		oldword = oldbyte | (oldbyte<<8);
+	} else
+	  oldbyte = oldword = 0; /* Tell the compiler we've initilalized them. */
+	newbyte = val[op];
+	newword = newbyte | (newbyte<<8);
+	invbyte = ~newbyte;
+	invword = invbyte | (invbyte<<8);
+
+	/*
+	** Check that the RAM contains the value that should have been left there
+	** by the previous test (not applicable for pass zero)
+	*/
+	if (op) {
+		for (off=0; off<size; off++) {
+			if (RBYTE(ram[off]) != oldbyte) {
+				rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Byte Pre Check 1: BYTE at offset 0x%x should have been=%x, was=%x\n", off, oldbyte, RBYTE(ram[off]));
+				return RIO_FAIL;
+			}
+		}
+		for (off=0; off<size; off+=2) {
+			if (*(ushort *)&ram[off] != oldword) {
+				rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Word Pre Check: WORD at offset 0x%x should have been=%x, was=%x\n",off,oldword,*(ushort *)&ram[off]);
+				rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Word Pre Check: BYTE at offset 0x%x is %x BYTE at offset 0x%x is %x\n", off, RBYTE(ram[off]), off+1, RBYTE(ram[off+1]));
+				return RIO_FAIL;
+			}
+		}
+	}
+
+	/*
+	** Now write the INVERSE of the test data into every location, using
+	** BYTE write operations, first checking before each byte is written
+	** that the location contains the old value still, and checking after
+	** the write that the location contains the data specified - this is
+	** the BYTE read/write test.
+	*/
+	for (off=0; off<size; off++) {
+		if (op && (RBYTE(ram[off]) != oldbyte)) {
+			rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Byte Pre Check 2: BYTE at offset 0x%x should have been=%x, was=%x\n", off, oldbyte, RBYTE(ram[off]));
+			return RIO_FAIL;
+		}
+		WBYTE(ram[off],invbyte);
+		if (RBYTE(ram[off]) != invbyte) {
+			rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Byte Inv Check: BYTE at offset 0x%x should have been=%x, was=%x\n", off, invbyte, RBYTE(ram[off]));
+			return RIO_FAIL;
+		}
+	}
+
+	/*
+	** now, use WORD operations to write the test value into every location,
+	** check as before that the location contains the previous test value
+	** before overwriting, and that it contains the data value written
+	** afterwards.
+	** This is the WORD operation test.
+	*/
+	for (off=0; off<size; off+=2) {
+		if (*(ushort *)&ram[off] != invword) {
+			rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Word Inv Check: WORD at offset 0x%x should have been=%x, was=%x\n", off, invword, *(ushort *)&ram[off]);
+		rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Word Inv Check: BYTE at offset 0x%x is %x BYTE at offset 0x%x is %x\n", off, RBYTE(ram[off]), off+1, RBYTE(ram[off+1]));
+			return RIO_FAIL;
+		}
+
+		*(ushort *)&ram[off] = newword;
+		if ( *(ushort *)&ram[off] != newword ) {
+			rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Post Word Check 1: WORD at offset 0x%x should have been=%x, was=%x\n", off, newword, *(ushort *)&ram[off]);
+			rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Post Word Check 1: BYTE at offset 0x%x is %x BYTE at offset 0x%x is %x\n", off, RBYTE(ram[off]), off+1, RBYTE(ram[off+1]));
+			return RIO_FAIL;
+		}
+	}
+
+	/*
+	** now run through the block of memory again, first in byte mode
+	** then in word mode, and check that all the locations contain the
+	** required test data.
+	*/
+	for (off=0; off<size; off++) {
+		if (RBYTE(ram[off]) != newbyte) {
+			rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Post Byte Check: BYTE at offset 0x%x should have been=%x, was=%x\n", off, newbyte, RBYTE(ram[off]));
+			return RIO_FAIL;
+		}
+	}
+
+	for (off=0; off<size; off+=2) {
+		if ( *(ushort *)&ram[off] != newword ) {
+			rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Post Word Check 2: WORD at offset 0x%x should have been=%x, was=%x\n", off, newword, *(ushort *)&ram[off]);
+			rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Post Word Check 2: BYTE at offset 0x%x is %x BYTE at offset 0x%x is %x\n", off, RBYTE(ram[off]), off+1, RBYTE(ram[off+1]));
+			return RIO_FAIL;
+		}
+	}
+
+	/*
+	** time to check out byte swapping errors
+	*/
+	swapword = invbyte | (newbyte << 8);
+
+	for (off=0; off<size; off+=2) {
+		WBYTE(ram[off],invbyte);
+		WBYTE(ram[off+1],newbyte);
+	}
+
+	for ( off=0; off<size; off+=2 ) {
+		if (*(ushort *)&ram[off] != swapword) {
+			rio_dprintk (RIO_DEBUG_INIT, "RIO-init: SwapWord Check 1: WORD at offset 0x%x should have been=%x, was=%x\n", off, swapword, *((ushort *)&ram[off]));
+			rio_dprintk (RIO_DEBUG_INIT, "RIO-init: SwapWord Check 1: BYTE at offset 0x%x is %x BYTE at offset 0x%x is %x\n", off, RBYTE(ram[off]), off+1, RBYTE(ram[off+1]));
+			return RIO_FAIL;
+		}
+		*((ushort *)&ram[off]) = ~swapword;
+	}
+
+	for (off=0; off<size; off+=2) {
+		if (RBYTE(ram[off]) != newbyte) {
+			rio_dprintk (RIO_DEBUG_INIT, "RIO-init: SwapWord Check 2: BYTE at offset 0x%x should have been=%x, was=%x\n", off, newbyte, RBYTE(ram[off]));
+			return RIO_FAIL;
+		}
+		if (RBYTE(ram[off+1]) != invbyte) {
+			rio_dprintk (RIO_DEBUG_INIT, "RIO-init: SwapWord Check 2: BYTE at offset 0x%x should have been=%x, was=%x\n", off+1, invbyte, RBYTE(ram[off+1]));
+			return RIO_FAIL;
+		}
+		*((ushort *)&ram[off]) = newword;
+	}
+	return RIO_SUCCESS;
+}
+
+/*
+** try to ensure that every host is either in polled mode
+** or is in interrupt mode. Only allow interrupt mode if
+** all hosts can interrupt (why?)
+** and force into polled mode if told to. Patch up the
+** interrupt vector & salute The Queen when you've done.
+*/
+#if 0
+static void
+RIOAllocateInterrupts(p)
+struct rio_info *	p;
+{
+	int Host;
+
+	/*
+	** Easy case - if we have been told to poll, then we poll.
+	*/
+	if (p->mode & POLLED_MODE) {
+		RIOStopInterrupts(p, 0, 0);
+		return;
+	}
+
+	/*
+	** check - if any host has been set to polled mode, then all must be.
+	*/
+	for (Host=0; Host<p->RIONumHosts; Host++) {
+		if ( (p->RIOHosts[Host].Type != RIO_AT) &&
+				(p->RIOHosts[Host].Ivec == POLLED) ) {
+			RIOStopInterrupts(p, 1, Host );
+			return;
+		}
+	}
+	for (Host=0; Host<p->RIONumHosts; Host++) {
+		if (p->RIOHosts[Host].Type == RIO_AT) {
+			if ( (p->RIOHosts[Host].Ivec - 32) == 0) {
+				RIOStopInterrupts(p, 2, Host );
+				return;
+			}
+		}
+	}
+}
+
+/*
+** something has decided that we can't be doing with these
+** new-fangled interrupt thingies. Set everything up to just
+** poll.
+*/
+static void
+RIOStopInterrupts(p, Reason, Host)
+struct rio_info *	p;
+int	Reason;
+int	Host; 
+{
+#ifdef FUTURE_RELEASE
+	switch (Reason) {
+		case 0:	/* forced into polling by rio_polled */
+			break;
+		case 1:	/* SCU has set 'Host' into polled mode */
+			break;
+		case 2:	/* there aren't enough interrupt vectors for 'Host' */
+			break;
+	}
+#endif
+
+	for (Host=0; Host<p->RIONumHosts; Host++ ) {
+		struct Host *HostP = &p->RIOHosts[Host];
+
+		switch (HostP->Type) {
+			case RIO_AT:
+				/*
+				** The AT host has it's interrupts disabled by clearing the
+				** int_enable bit.
+				*/
+				HostP->Mode &= ~INTERRUPT_ENABLE;
+				HostP->Ivec = POLLED;
+				break;
+#ifdef FUTURE_RELEASE
+			case RIO_EISA:
+				/*
+				** The EISA host has it's interrupts disabled by setting the
+				** Ivec to zero
+				*/
+				HostP->Ivec = POLLED;
+				break;
+#endif
+			case RIO_PCI:
+				/*
+				** The PCI host has it's interrupts disabled by clearing the
+				** int_enable bit, like a regular host card.
+				*/
+				HostP->Mode &= ~RIO_PCI_INT_ENABLE;
+				HostP->Ivec = POLLED;
+				break;
+#ifdef FUTURE_RELEASE
+			case RIO_MCA:
+				/*
+				** There's always one, isn't there?
+				** The MCA host card cannot have it's interrupts disabled.
+				*/
+				RIOPatchVec(HostP);
+				break;
+#endif
+		}
+	}
+}
+
+/*
+** This function is called at init time to setup the data structures.
+*/
+void
+RIOAllocDataStructs(p)
+struct rio_info *	p;
+{
+	int	port,
+		host,
+		tm;
+
+	p->RIOPortp = (struct Port *)sysbrk(RIO_PORTS * sizeof(struct Port));
+	if (!p->RIOPortp) {
+		rio_dprintk (RIO_DEBUG_INIT, "RIO-init: No memory for port structures\n");
+		p->RIOFailed++;
+		return;
+	} 
+	bzero( p->RIOPortp, sizeof(struct Port) * RIO_PORTS );
+	rio_dprintk (RIO_DEBUG_INIT,  "RIO-init: allocated and cleared memory for port structs\n");
+	rio_dprintk (RIO_DEBUG_INIT,  "First RIO port struct @0x%x, size=0x%x bytes\n",
+	    (int)p->RIOPortp, sizeof(struct Port));
+
+	for( port=0; port<RIO_PORTS; port++ ) {
+		p->RIOPortp[port].PortNum = port;
+		p->RIOPortp[port].TtyP = &p->channel[port];
+		sreset (p->RIOPortp[port].InUse);	/* Let the first guy uses it */
+		p->RIOPortp[port].portSem = -1;	/* Let the first guy takes it */
+		p->RIOPortp[port].ParamSem = -1;	/* Let the first guy takes it */
+		p->RIOPortp[port].timeout_id = 0;	/* Let the first guy takes it */
+	}
+
+	p->RIOHosts = (struct Host *)sysbrk(RIO_HOSTS * sizeof(struct Host));
+	if (!p->RIOHosts) {
+		rio_dprintk (RIO_DEBUG_INIT, "RIO-init: No memory for host structures\n");
+		p->RIOFailed++;
+		return;
+	}
+	bzero(p->RIOHosts, sizeof(struct Host)*RIO_HOSTS);
+	rio_dprintk (RIO_DEBUG_INIT,  "RIO-init: allocated and cleared memory for host structs\n");
+	rio_dprintk (RIO_DEBUG_INIT,  "First RIO host struct @0x%x, size=0x%x bytes\n",
+	    (int)p->RIOHosts, sizeof(struct Host));
+
+	for( host=0; host<RIO_HOSTS; host++ ) {
+		spin_lock_init (&p->RIOHosts[host].HostLock);
+		p->RIOHosts[host].timeout_id = 0; /* Let the first guy takes it */
+	}
+	/*
+	** check that the buffer size is valid, round down to the next power of
+	** two if necessary; if the result is zero, then, hey, no double buffers.
+	*/
+	for ( tm = 1; tm && tm <= p->RIOConf.BufferSize; tm <<= 1 )
+		;
+	tm >>= 1;
+	p->RIOBufferSize = tm;
+	p->RIOBufferMask = tm ? tm - 1 : 0;
+}
+
+/*
+** this function gets called whenever the data structures need to be
+** re-setup, for example, after a riohalt (why did I ever invent it?)
+*/
+void
+RIOSetupDataStructs(p)
+struct rio_info	* p;
+{
+	int host, entry, rup;
+
+	for ( host=0; host<RIO_HOSTS; host++ ) {
+		struct Host *HostP = &p->RIOHosts[host];
+		for ( entry=0; entry<LINKS_PER_UNIT; entry++ ) {
+			HostP->Topology[entry].Unit = ROUTE_DISCONNECT;
+			HostP->Topology[entry].Link = NO_LINK;
+		}
+		bcopy("HOST X", HostP->Name, 7);
+		HostP->Name[5] = '1'+host;
+		for (rup=0; rup<(MAX_RUP + LINKS_PER_UNIT); rup++) {
+			if (rup < MAX_RUP) {
+				for (entry=0; entry<LINKS_PER_UNIT; entry++ ) {
+					HostP->Mapping[rup].Topology[entry].Unit = ROUTE_DISCONNECT;
+					HostP->Mapping[rup].Topology[entry].Link = NO_LINK;
+				}
+				RIODefaultName(p, HostP, rup);
+			}
+			spin_lock_init(&HostP->UnixRups[rup].RupLock);
+		}
+	}
+}
+#endif
+
+int
+RIODefaultName(p, HostP, UnitId)
+struct rio_info *	p;
+struct Host *	HostP;
+uint			UnitId;
+{
+#ifdef CHECK
+	CheckHost( Host );
+	CheckUnitId( UnitId );
+#endif
+	bcopy("UNKNOWN RTA X-XX",HostP->Mapping[UnitId].Name,17);
+	HostP->Mapping[UnitId].Name[12]='1'+(HostP-p->RIOHosts);
+	if ((UnitId+1) > 9) {
+		HostP->Mapping[UnitId].Name[14]='0'+((UnitId+1)/10);
+		HostP->Mapping[UnitId].Name[15]='0'+((UnitId+1)%10);
+	}
+	else {
+		HostP->Mapping[UnitId].Name[14]='1'+UnitId;
+		HostP->Mapping[UnitId].Name[15]=0;
+	}
+	return 0;
+}
+
+#define RIO_RELEASE	"Linux"
+#define RELEASE_ID	"1.0"
+
+#if 0
+static int
+RIOReport(p)
+struct rio_info *	p;
+{
+	char *	RIORelease = RIO_RELEASE;
+	char *	RIORelID = RELEASE_ID;
+	int		host;
+
+	rio_dprintk (RIO_DEBUG_INIT, "RIO : Release: %s ID: %s\n", RIORelease, RIORelID);
+
+	if ( p->RIONumHosts==0 ) {
+		rio_dprintk (RIO_DEBUG_INIT, "\nNo Hosts configured\n");
+		return(0);
+	}
+
+	for ( host=0; host < p->RIONumHosts; host++ ) {
+		struct Host *HostP = &p->RIOHosts[host];
+		switch ( HostP->Type ) {
+			case RIO_AT:
+				rio_dprintk (RIO_DEBUG_INIT, "AT BUS : found the card at 0x%x\n", HostP->PaddrP);
+		}
+	}
+	return 0;
+}
+#endif
+
+static struct rioVersion	stVersion;
+
+struct rioVersion *
+RIOVersid(void)
+{
+    strlcpy(stVersion.version, "RIO driver for linux V1.0",
+	    sizeof(stVersion.version));
+    strlcpy(stVersion.buildDate, __DATE__,
+	    sizeof(stVersion.buildDate));
+
+    return &stVersion;
+}
+
+#if 0
+int
+RIOMapin(paddr, size, vaddr)
+paddr_t		paddr;
+int			size;
+caddr_t *	vaddr;
+{
+	*vaddr = (caddr_t)permap( (long)paddr, size);
+	return ((int)*vaddr);
+}
+
+void
+RIOMapout(paddr, size, vaddr)
+paddr_t		paddr;
+long		size;
+caddr_t 	vaddr;
+{
+}
+#endif
+
+
+void
+RIOHostReset(Type, DpRamP, Slot)
+uint Type;
+volatile struct DpRam *DpRamP;
+uint Slot; 
+{
+	/*
+	** Reset the Tpu
+	*/
+	rio_dprintk (RIO_DEBUG_INIT,  "RIOHostReset: type 0x%x", Type);
+	switch ( Type ) {
+		case RIO_AT:
+			rio_dprintk (RIO_DEBUG_INIT, " (RIO_AT)\n");
+			WBYTE(DpRamP->DpControl,  BOOT_FROM_RAM | EXTERNAL_BUS_OFF | 
+					  INTERRUPT_DISABLE | BYTE_OPERATION |
+					  SLOW_LINKS | SLOW_AT_BUS);
+			WBYTE(DpRamP->DpResetTpu, 0xFF);
+			rio_udelay (3);
+
+			rio_dprintk (RIO_DEBUG_INIT,  "RIOHostReset: Don't know if it worked. Try reset again\n");
+			WBYTE(DpRamP->DpControl,  BOOT_FROM_RAM | EXTERNAL_BUS_OFF |
+					  INTERRUPT_DISABLE | BYTE_OPERATION |
+					  SLOW_LINKS | SLOW_AT_BUS);
+			WBYTE(DpRamP->DpResetTpu, 0xFF);
+			rio_udelay (3);
+			break;
+#ifdef FUTURE_RELEASE
+	case RIO_EISA:
+	/*
+	** Bet this doesn't work!
+	*/
+	OUTBZ( Slot, EISA_CONTROL_PORT,
+		EISA_TP_RUN		| EISA_TP_BUS_DISABLE   |
+		EISA_TP_SLOW_LINKS | EISA_TP_BOOT_FROM_RAM );
+	OUTBZ( Slot, EISA_CONTROL_PORT,
+		EISA_TP_RESET	  | EISA_TP_BUS_DISABLE   | 
+		EISA_TP_SLOW_LINKS | EISA_TP_BOOT_FROM_RAM );
+	suspend( 3 );
+	OUTBZ( Slot, EISA_CONTROL_PORT,
+		EISA_TP_RUN		| EISA_TP_BUS_DISABLE   | 
+		EISA_TP_SLOW_LINKS | EISA_TP_BOOT_FROM_RAM );
+	break;
+	case RIO_MCA:
+	WBYTE(DpRamP->DpControl  , McaTpBootFromRam | McaTpBusDisable );
+	WBYTE(DpRamP->DpResetTpu , 0xFF );
+	suspend( 3 );
+	WBYTE(DpRamP->DpControl  , McaTpBootFromRam | McaTpBusDisable );
+	WBYTE(DpRamP->DpResetTpu , 0xFF );
+	suspend( 3 );
+		break;
+#endif
+	case RIO_PCI:
+		rio_dprintk (RIO_DEBUG_INIT, " (RIO_PCI)\n");
+		DpRamP->DpControl  = RIO_PCI_BOOT_FROM_RAM;
+		DpRamP->DpResetInt = 0xFF;
+		DpRamP->DpResetTpu = 0xFF;
+		rio_udelay (100);
+		/* for (i=0; i<6000; i++);  */
+		/* suspend( 3 ); */
+		break;
+#ifdef FUTURE_RELEASE
+	default:
+	Rprintf(RIOMesgNoSupport,Type,DpRamP,Slot);
+	return;
+#endif
+
+	default:
+		rio_dprintk (RIO_DEBUG_INIT, " (UNKNOWN)\n");
+		break;
+	}
+	return;
+}