rioinit.c
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上传日期:2013-02-24
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- /*
- ** -----------------------------------------------------------------------------
- **
- ** 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
- #define __NO_VERSION__
- #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/compatmac.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
- 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 structuresn");
- 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 accomodate 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 : %dn", 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%xn", p->intr_tid );
- if (RIODoAT(p, p->RIOHosts[p->RIONumHosts].PaddrP, mode)) {
- return;
- }
- else {
- rio_dprintk (RIO_DEBUG_INIT, "RIODoAT failedn");
- 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%xn",p->RIOHosts[p->RIONumHosts].UniqueNum);
- p->RIONumHosts++;
- rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Tests Passed at 0x%xn", 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 %dn", 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 %xn", Ivec);
- switch ( Ivec & McaIrqMask )
- {
- case McaIrq9:
- rio_dprintk (RIO_DEBUG_INIT, "IRQ9n");
- break;
- case McaIrq3:
- rio_dprintk (RIO_DEBUG_INIT, "IRQ3n");
- break;
- case McaIrq4:
- rio_dprintk (RIO_DEBUG_INIT, "IRQ4n");
- break;
- case McaIrq7:
- rio_dprintk (RIO_DEBUG_INIT, "IRQ7n");
- break;
- case McaIrq10:
- rio_dprintk (RIO_DEBUG_INIT, "IRQ10n");
- break;
- case McaIrq11:
- rio_dprintk (RIO_DEBUG_INIT, "IRQ11n");
- break;
- case McaIrq12:
- rio_dprintk (RIO_DEBUG_INIT, "IRQ12n");
- break;
- case McaIrq15:
- rio_dprintk (RIO_DEBUG_INIT, "IRQ15n");
- 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 setn");
- /*
- ** Convert the IRQ enable mask into something useful
- */
- Ivec = RIOMcaToIvec[Ivec & McaIrqMask];
- /*
- ** Find the physical address
- */
- rio_dprintk (RIO_DEBUG_INIT, "inb(McaMemory) is %xn", inb(McaMemory));
- Paddr = McaAddress(inb(McaMemory));
- rio_dprintk (RIO_DEBUG_INIT, "MCA card has Ivec %d Addr %xn", 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 %xn", RIO_MCA_MEM_SIZE, Paddr;
- continue;
- }
- rio_dprintk (RIO_DEBUG_INIT, "Board mapped to vaddr 0x%xn", 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 testn");
- 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 FAILEDn");
- 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 RIOn", 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 RIOn", 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 productn");
- if ( INBZ(EisaSlot,EISA_PRODUCT_NUMBER) != RIO_EISA_PRODUCT_CODE )
- {
- rio_dprintk (RIO_DEBUG_INIT, "Not Specialix RIO - Product number %xn",
- INBZ(EisaSlot, EISA_PRODUCT_NUMBER));
- continue; /* next slot */
- }
- /*
- ** Its a Specialix RIO!
- */
- rio_dprintk (RIO_DEBUG_INIT, "RIO Revision %dn",
- 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 3n");
- break;
- case EISA_IRQ_4:
- rio_dprintk (RIO_DEBUG_INIT, "EISA IRQ 4n");
- break;
- case EISA_IRQ_5:
- rio_dprintk (RIO_DEBUG_INIT, "EISA IRQ 5n");
- break;
- case EISA_IRQ_6:
- rio_dprintk (RIO_DEBUG_INIT, "EISA IRQ 6n");
- break;
- case EISA_IRQ_7:
- rio_dprintk (RIO_DEBUG_INIT, "EISA IRQ 7n");
- break;
- case EISA_IRQ_9:
- rio_dprintk (RIO_DEBUG_INIT, "EISA IRQ 9n");
- break;
- case EISA_IRQ_10:
- rio_dprintk (RIO_DEBUG_INIT, "EISA IRQ 10n");
- break;
- case EISA_IRQ_11:
- rio_dprintk (RIO_DEBUG_INIT, "EISA IRQ 11n");
- break;
- case EISA_IRQ_12:
- rio_dprintk (RIO_DEBUG_INIT, "EISA IRQ 12n");
- break;
- case EISA_IRQ_14:
- rio_dprintk (RIO_DEBUG_INIT, "EISA IRQ 14n");
- break;
- case EISA_IRQ_15:
- rio_dprintk (RIO_DEBUG_INIT, "EISA IRQ 15n");
- break;
- case EISA_POLLED:
- rio_dprintk (RIO_DEBUG_INIT, "EISA POLLEDn");
- 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%xn",
- 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 %xn", 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 %xn",
- RIO_EISA_MEM_SIZE,Paddr);
- continue;
- }
- rio_dprintk (RIO_DEBUG_INIT, "Board mapped to vaddr 0x%xn", 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 testn");
- 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 FAILEDn");
- 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 %dn", 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 %dn", 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 slotn"); /* 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 %dn", (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%xn", 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 testn");
- 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 %dn", 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=%dn",
- 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 arraysn");
- 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 failedn",
- bank, op);
- return RIO_FAIL;
- }
- }
- }
- rio_dprintk (RIO_DEBUG_INIT, "Test completedn");
- 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.
- */
- 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=%xn", 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=%xn",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 %xn", 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=%xn", 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=%xn", 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=%xn", 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 %xn", 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=%xn", 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 %xn", 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=%xn", 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=%xn", 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 %xn", 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=%xn", 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 %xn", 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=%xn", 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=%xn", 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.
- */
- 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.
- */
- 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
- }
- }
- }
- #if 0
- /*
- ** 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 structuresn");
- p->RIOFailed++;
- return;
- }
- bzero( p->RIOPortp, sizeof(struct Port) * RIO_PORTS );
- rio_dprintk (RIO_DEBUG_INIT, "RIO-init: allocated and cleared memory for port structsn");
- rio_dprintk (RIO_DEBUG_INIT, "First RIO port struct @0x%x, size=0x%x bytesn",
- (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 structuresn");
- p->RIOFailed++;
- return;
- }
- bzero(p->RIOHosts, sizeof(struct Host)*RIO_HOSTS);
- rio_dprintk (RIO_DEBUG_INIT, "RIO-init: allocated and cleared memory for host structsn");
- rio_dprintk (RIO_DEBUG_INIT, "First RIO host struct @0x%x, size=0x%x bytesn",
- (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);
- }
- HostP->UnixRups[rup].RupLock = SPIN_LOCK_UNLOCKED;
- }
- }
- }
- #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"
- 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: %sn", RIORelease, RIORelID);
- if ( p->RIONumHosts==0 ) {
- rio_dprintk (RIO_DEBUG_INIT, "nNo Hosts configuredn");
- 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%xn", HostP->PaddrP);
- }
- }
- return 0;
- }
- /*
- ** This function returns release/version information as used by ioctl() calls
- ** It returns a MAX_VERSION_LEN byte string, null terminated.
- */
- char *
- OLD_RIOVersid( void )
- {
- static char Info[MAX_VERSION_LEN];
- char * RIORelease = RIO_RELEASE;
- char * cp;
- int ct = 0;
- for ( ct=0; RIORelease[ct] && ct<MAX_VERSION_LEN; ct++ )
- Info[ct] = RIORelease[ct];
- if ( ct>=MAX_VERSION_LEN ) {
- Info[MAX_VERSION_LEN-1] = ' ';
- return Info;
- }
- Info[ct++]=' ';
- if ( ct>=MAX_VERSION_LEN ) {
- Info[MAX_VERSION_LEN-1] = ' ';
- return Info;
- }
- cp=""; /* Fill the RCS Id here */
- while ( *cp && ct<MAX_VERSION_LEN )
- Info[ct++] = *cp++;
- if ( ct<MAX_VERSION_LEN-1 )
- Info[ct] = ' ';
- Info[MAX_VERSION_LEN-1] = ' ';
- return Info;
- }
- static struct rioVersion stVersion;
- struct rioVersion *
- RIOVersid(void)
- {
- strncpy(stVersion.version, "RIO driver for linux V1.0", 255);
- strncpy(stVersion.buildDate, __DATE__, 255);
- 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 againn");
- 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;
- }