diff options
Diffstat (limited to 'drivers/char/rio/rioboot.c')
| -rw-r--r-- | drivers/char/rio/rioboot.c | 1360 |
1 files changed, 1360 insertions, 0 deletions
diff --git a/drivers/char/rio/rioboot.c b/drivers/char/rio/rioboot.c new file mode 100644 index 00000000000..a8be11dfcba --- /dev/null +++ b/drivers/char/rio/rioboot.c @@ -0,0 +1,1360 @@ +/* +** ----------------------------------------------------------------------------- +** +** 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 : rioboot.c +** SID : 1.3 +** Last Modified : 11/6/98 10:33:36 +** Retrieved : 11/6/98 10:33:48 +** +** ident @(#)rioboot.c 1.3 +** +** ----------------------------------------------------------------------------- +*/ + +#ifdef SCCS_LABELS +static char *_rioboot_c_sccs_ = "@(#)rioboot.c 1.3"; +#endif + +#include <linux/module.h> +#include <linux/slab.h> +#include <linux/errno.h> +#include <linux/interrupt.h> +#include <asm/io.h> +#include <asm/system.h> +#include <asm/string.h> +#include <asm/semaphore.h> + + +#include <linux/termios.h> +#include <linux/serial.h> + +#include <linux/generic_serial.h> + + + +#include "linux_compat.h" +#include "rio_linux.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" + +static int RIOBootComplete( struct rio_info *p, struct Host *HostP, uint Rup, struct PktCmd *PktCmdP ); + +static uchar +RIOAtVec2Ctrl[] = +{ + /* 0 */ INTERRUPT_DISABLE, + /* 1 */ INTERRUPT_DISABLE, + /* 2 */ INTERRUPT_DISABLE, + /* 3 */ INTERRUPT_DISABLE, + /* 4 */ INTERRUPT_DISABLE, + /* 5 */ INTERRUPT_DISABLE, + /* 6 */ INTERRUPT_DISABLE, + /* 7 */ INTERRUPT_DISABLE, + /* 8 */ INTERRUPT_DISABLE, + /* 9 */ IRQ_9|INTERRUPT_ENABLE, + /* 10 */ INTERRUPT_DISABLE, + /* 11 */ IRQ_11|INTERRUPT_ENABLE, + /* 12 */ IRQ_12|INTERRUPT_ENABLE, + /* 13 */ INTERRUPT_DISABLE, + /* 14 */ INTERRUPT_DISABLE, + /* 15 */ IRQ_15|INTERRUPT_ENABLE +}; + +/* +** Load in the RTA boot code. +*/ +int +RIOBootCodeRTA(p, rbp) +struct rio_info * p; +struct DownLoad * rbp; +{ + int offset; + + func_enter (); + + /* Linux doesn't allow you to disable interrupts during a + "copyin". (Crash when a pagefault occurs). */ + /* disable(oldspl); */ + + rio_dprintk (RIO_DEBUG_BOOT, "Data at user address 0x%x\n",(int)rbp->DataP); + + /* + ** Check that we have set asside enough memory for this + */ + if ( rbp->Count > SIXTY_FOUR_K ) { + rio_dprintk (RIO_DEBUG_BOOT, "RTA Boot Code Too Large!\n"); + p->RIOError.Error = HOST_FILE_TOO_LARGE; + /* restore(oldspl); */ + func_exit (); + return -ENOMEM; + } + + if ( p->RIOBooting ) { + rio_dprintk (RIO_DEBUG_BOOT, "RTA Boot Code : BUSY BUSY BUSY!\n"); + p->RIOError.Error = BOOT_IN_PROGRESS; + /* restore(oldspl); */ + func_exit (); + return -EBUSY; + } + + /* + ** The data we load in must end on a (RTA_BOOT_DATA_SIZE) byte boundary, + ** so calculate how far we have to move the data up the buffer + ** to achieve this. + */ + offset = (RTA_BOOT_DATA_SIZE - (rbp->Count % RTA_BOOT_DATA_SIZE)) % + RTA_BOOT_DATA_SIZE; + + /* + ** Be clean, and clear the 'unused' portion of the boot buffer, + ** because it will (eventually) be part of the Rta run time environment + ** and so should be zeroed. + */ + bzero( (caddr_t)p->RIOBootPackets, offset ); + + /* + ** Copy the data from user space. + */ + + if ( copyin((int)rbp->DataP,((caddr_t)(p->RIOBootPackets))+offset, + rbp->Count) ==COPYFAIL ) { + rio_dprintk (RIO_DEBUG_BOOT, "Bad data copy from user space\n"); + p->RIOError.Error = COPYIN_FAILED; + /* restore(oldspl); */ + func_exit (); + return -EFAULT; + } + + /* + ** Make sure that our copy of the size includes that offset we discussed + ** earlier. + */ + p->RIONumBootPkts = (rbp->Count+offset)/RTA_BOOT_DATA_SIZE; + p->RIOBootCount = rbp->Count; + + /* restore(oldspl); */ + func_exit(); + return 0; +} + +void rio_start_card_running (struct Host * HostP) +{ + func_enter (); + + switch ( HostP->Type ) { + case RIO_AT: + rio_dprintk (RIO_DEBUG_BOOT, "Start ISA card running\n"); + WBYTE(HostP->Control, + BOOT_FROM_RAM | EXTERNAL_BUS_ON + | HostP->Mode + | RIOAtVec2Ctrl[HostP->Ivec & 0xF] ); + break; + +#ifdef FUTURE_RELEASE + case RIO_MCA: + /* + ** MCA handles IRQ vectors differently, so we don't write + ** them to this register. + */ + rio_dprintk (RIO_DEBUG_BOOT, "Start MCA card running\n"); + WBYTE(HostP->Control, McaTpBootFromRam | McaTpBusEnable | HostP->Mode); + break; + + case RIO_EISA: + /* + ** EISA is totally different and expects OUTBZs to turn it on. + */ + rio_dprintk (RIO_DEBUG_BOOT, "Start EISA card running\n"); + OUTBZ( HostP->Slot, EISA_CONTROL_PORT, HostP->Mode | RIOEisaVec2Ctrl[HostP->Ivec] | EISA_TP_RUN | EISA_TP_BUS_ENABLE | EISA_TP_BOOT_FROM_RAM ); + break; +#endif + + case RIO_PCI: + /* + ** PCI is much the same as MCA. Everything is once again memory + ** mapped, so we are writing to memory registers instead of io + ** ports. + */ + rio_dprintk (RIO_DEBUG_BOOT, "Start PCI card running\n"); + WBYTE(HostP->Control, PCITpBootFromRam | PCITpBusEnable | HostP->Mode); + break; + default: + rio_dprintk (RIO_DEBUG_BOOT, "Unknown host type %d\n", HostP->Type); + break; + } +/* + printk (KERN_INFO "Done with starting the card\n"); + func_exit (); +*/ + return; +} + +/* +** Load in the host boot code - load it directly onto all halted hosts +** of the correct type. +** +** Put your rubber pants on before messing with this code - even the magic +** numbers have trouble understanding what they are doing here. +*/ +int +RIOBootCodeHOST(p, rbp) +struct rio_info * p; +register struct DownLoad *rbp; +{ + register struct Host *HostP; + register caddr_t Cad; + register PARM_MAP *ParmMapP; + register int RupN; + int PortN; + uint host; + caddr_t StartP; + BYTE *DestP; + int wait_count; + ushort OldParmMap; + ushort offset; /* It is very important that this is a ushort */ + /* uint byte; */ + caddr_t DownCode = NULL; + unsigned long flags; + + HostP = NULL; /* Assure the compiler we've initialized it */ + for ( host=0; host<p->RIONumHosts; host++ ) { + rio_dprintk (RIO_DEBUG_BOOT, "Attempt to boot host %d\n",host); + HostP = &p->RIOHosts[host]; + + rio_dprintk (RIO_DEBUG_BOOT, "Host Type = 0x%x, Mode = 0x%x, IVec = 0x%x\n", + HostP->Type, HostP->Mode, HostP->Ivec); + + + if ( (HostP->Flags & RUN_STATE) != RC_WAITING ) { + rio_dprintk (RIO_DEBUG_BOOT, "%s %d already running\n","Host",host); + continue; + } + + /* + ** Grab a 32 bit pointer to the card. + */ + Cad = HostP->Caddr; + + /* + ** We are going to (try) and load in rbp->Count bytes. + ** The last byte will reside at p->RIOConf.HostLoadBase-1; + ** Therefore, we need to start copying at address + ** (caddr+p->RIOConf.HostLoadBase-rbp->Count) + */ + StartP = (caddr_t)&Cad[p->RIOConf.HostLoadBase-rbp->Count]; + + rio_dprintk (RIO_DEBUG_BOOT, "kernel virtual address for host is 0x%x\n", (int)Cad ); + rio_dprintk (RIO_DEBUG_BOOT, "kernel virtual address for download is 0x%x\n", (int)StartP); + rio_dprintk (RIO_DEBUG_BOOT, "host loadbase is 0x%x\n",p->RIOConf.HostLoadBase); + rio_dprintk (RIO_DEBUG_BOOT, "size of download is 0x%x\n", rbp->Count); + + if ( p->RIOConf.HostLoadBase < rbp->Count ) { + rio_dprintk (RIO_DEBUG_BOOT, "Bin too large\n"); + p->RIOError.Error = HOST_FILE_TOO_LARGE; + func_exit (); + return -EFBIG; + } + /* + ** Ensure that the host really is stopped. + ** Disable it's external bus & twang its reset line. + */ + RIOHostReset( HostP->Type, (struct DpRam *)HostP->CardP, HostP->Slot ); + + /* + ** Copy the data directly from user space to the SRAM. + ** This ain't going to be none too clever if the download + ** code is bigger than this segment. + */ + rio_dprintk (RIO_DEBUG_BOOT, "Copy in code\n"); + + /* + ** PCI hostcard can't cope with 32 bit accesses and so need to copy + ** data to a local buffer, and then dripfeed the card. + */ + if ( HostP->Type == RIO_PCI ) { + /* int offset; */ + + DownCode = sysbrk(rbp->Count); + if ( !DownCode ) { + rio_dprintk (RIO_DEBUG_BOOT, "No system memory available\n"); + p->RIOError.Error = NOT_ENOUGH_CORE_FOR_PCI_COPY; + func_exit (); + return -ENOMEM; + } + bzero(DownCode, rbp->Count); + + if ( copyin((int)rbp->DataP,DownCode,rbp->Count)==COPYFAIL ) { + rio_dprintk (RIO_DEBUG_BOOT, "Bad copyin of host data\n"); + sysfree( DownCode, rbp->Count ); + p->RIOError.Error = COPYIN_FAILED; + func_exit (); + return -EFAULT; + } + + HostP->Copy( DownCode, StartP, rbp->Count ); + + sysfree( DownCode, rbp->Count ); + } + else if ( copyin((int)rbp->DataP,StartP,rbp->Count)==COPYFAIL ) { + rio_dprintk (RIO_DEBUG_BOOT, "Bad copyin of host data\n"); + p->RIOError.Error = COPYIN_FAILED; + func_exit (); + return -EFAULT; + } + + rio_dprintk (RIO_DEBUG_BOOT, "Copy completed\n"); + + /* + ** S T O P ! + ** + ** Upto this point the code has been fairly rational, and possibly + ** even straight forward. What follows is a pile of crud that will + ** magically turn into six bytes of transputer assembler. Normally + ** you would expect an array or something, but, being me, I have + ** chosen [been told] to use a technique whereby the startup code + ** will be correct if we change the loadbase for the code. Which + ** brings us onto another issue - the loadbase is the *end* of the + ** code, not the start. + ** + ** If I were you I wouldn't start from here. + */ + + /* + ** We now need to insert a short boot section into + ** the memory at the end of Sram2. This is normally (de)composed + ** of the last eight bytes of the download code. The + ** download has been assembled/compiled to expect to be + ** loaded from 0x7FFF downwards. We have loaded it + ** at some other address. The startup code goes into the small + ** ram window at Sram2, in the last 8 bytes, which are really + ** at addresses 0x7FF8-0x7FFF. + ** + ** If the loadbase is, say, 0x7C00, then we need to branch to + ** address 0x7BFE to run the host.bin startup code. We assemble + ** this jump manually. + ** + ** The two byte sequence 60 08 is loaded into memory at address + ** 0x7FFE,F. This is a local branch to location 0x7FF8 (60 is nfix 0, + ** which adds '0' to the .O register, complements .O, and then shifts + ** it left by 4 bit positions, 08 is a jump .O+8 instruction. This will + ** add 8 to .O (which was 0xFFF0), and will branch RELATIVE to the new + ** location. Now, the branch starts from the value of .PC (or .IP or + ** whatever the bloody register is called on this chip), and the .PC + ** will be pointing to the location AFTER the branch, in this case + ** .PC == 0x8000, so the branch will be to 0x8000+0xFFF8 = 0x7FF8. + ** + ** A long branch is coded at 0x7FF8. This consists of loading a four + ** byte offset into .O using nfix (as above) and pfix operators. The + ** pfix operates in exactly the same way as the nfix operator, but + ** without the complement operation. The offset, of course, must be + ** relative to the address of the byte AFTER the branch instruction, + ** which will be (urm) 0x7FFC, so, our final destination of the branch + ** (loadbase-2), has to be reached from here. Imagine that the loadbase + ** is 0x7C00 (which it is), then we will need to branch to 0x7BFE (which + ** is the first byte of the initial two byte short local branch of the + ** download code). + ** + ** To code a jump from 0x7FFC (which is where the branch will start + ** from) to 0x7BFE, we will need to branch 0xFC02 bytes (0x7FFC+0xFC02)= + ** 0x7BFE. + ** This will be coded as four bytes: + ** 60 2C 20 02 + ** being nfix .O+0 + ** pfix .O+C + ** pfix .O+0 + ** jump .O+2 + ** + ** The nfix operator is used, so that the startup code will be + ** compatible with the whole Tp family. (lies, damn lies, it'll never + ** work in a month of Sundays). + ** + ** The nfix nyble is the 1s complement of the nyble value you + ** want to load - in this case we wanted 'F' so we nfix loaded '0'. + */ + + + /* + ** Dest points to the top 8 bytes of Sram2. The Tp jumps + ** to 0x7FFE at reset time, and starts executing. This is + ** a short branch to 0x7FF8, where a long branch is coded. + */ + + DestP = (BYTE *)&Cad[0x7FF8]; /* <<<---- READ THE ABOVE COMMENTS */ + +#define NFIX(N) (0x60 | (N)) /* .O = (~(.O + N))<<4 */ +#define PFIX(N) (0x20 | (N)) /* .O = (.O + N)<<4 */ +#define JUMP(N) (0x00 | (N)) /* .PC = .PC + .O */ + + /* + ** 0x7FFC is the address of the location following the last byte of + ** the four byte jump instruction. + ** READ THE ABOVE COMMENTS + ** + ** offset is (TO-FROM) % MEMSIZE, but with compound buggering about. + ** Memsize is 64K for this range of Tp, so offset is a short (unsigned, + ** cos I don't understand 2's complement). + */ + offset = (p->RIOConf.HostLoadBase-2)-0x7FFC; + WBYTE( DestP[0] , NFIX(((ushort)(~offset) >> (ushort)12) & 0xF) ); + WBYTE( DestP[1] , PFIX(( offset >> 8) & 0xF) ); + WBYTE( DestP[2] , PFIX(( offset >> 4) & 0xF) ); + WBYTE( DestP[3] , JUMP( offset & 0xF) ); + + WBYTE( DestP[6] , NFIX(0) ); + WBYTE( DestP[7] , JUMP(8) ); + + rio_dprintk (RIO_DEBUG_BOOT, "host loadbase is 0x%x\n",p->RIOConf.HostLoadBase); + rio_dprintk (RIO_DEBUG_BOOT, "startup offset is 0x%x\n",offset); + + /* + ** Flag what is going on + */ + HostP->Flags &= ~RUN_STATE; + HostP->Flags |= RC_STARTUP; + + /* + ** Grab a copy of the current ParmMap pointer, so we + ** can tell when it has changed. + */ + OldParmMap = RWORD(HostP->__ParmMapR); + + rio_dprintk (RIO_DEBUG_BOOT, "Original parmmap is 0x%x\n",OldParmMap); + + /* + ** And start it running (I hope). + ** As there is nothing dodgy or obscure about the + ** above code, this is guaranteed to work every time. + */ + rio_dprintk (RIO_DEBUG_BOOT, "Host Type = 0x%x, Mode = 0x%x, IVec = 0x%x\n", + HostP->Type, HostP->Mode, HostP->Ivec); + + rio_start_card_running(HostP); + + rio_dprintk (RIO_DEBUG_BOOT, "Set control port\n"); + + /* + ** Now, wait for upto five seconds for the Tp to setup the parmmap + ** pointer: + */ + for ( wait_count=0; (wait_count<p->RIOConf.StartupTime)&& + (RWORD(HostP->__ParmMapR)==OldParmMap); wait_count++ ) { + rio_dprintk (RIO_DEBUG_BOOT, "Checkout %d, 0x%x\n",wait_count,RWORD(HostP->__ParmMapR)); + delay(HostP, HUNDRED_MS); + + } + + /* + ** If the parmmap pointer is unchanged, then the host code + ** has crashed & burned in a really spectacular way + */ + if ( RWORD(HostP->__ParmMapR) == OldParmMap ) { + rio_dprintk (RIO_DEBUG_BOOT, "parmmap 0x%x\n", RWORD(HostP->__ParmMapR)); + rio_dprintk (RIO_DEBUG_BOOT, "RIO Mesg Run Fail\n"); + +#define HOST_DISABLE \ + HostP->Flags &= ~RUN_STATE; \ + HostP->Flags |= RC_STUFFED; \ + RIOHostReset( HostP->Type, (struct DpRam *)HostP->CardP, HostP->Slot );\ + continue + + HOST_DISABLE; + } + + rio_dprintk (RIO_DEBUG_BOOT, "Running 0x%x\n", RWORD(HostP->__ParmMapR)); + + /* + ** Well, the board thought it was OK, and setup its parmmap + ** pointer. For the time being, we will pretend that this + ** board is running, and check out what the error flag says. + */ + + /* + ** Grab a 32 bit pointer to the parmmap structure + */ + ParmMapP = (PARM_MAP *)RIO_PTR(Cad,RWORD(HostP->__ParmMapR)); + rio_dprintk (RIO_DEBUG_BOOT, "ParmMapP : %x\n", (int)ParmMapP); + ParmMapP = (PARM_MAP *)((unsigned long)Cad + + (unsigned long)((RWORD((HostP->__ParmMapR))) & 0xFFFF)); + rio_dprintk (RIO_DEBUG_BOOT, "ParmMapP : %x\n", (int)ParmMapP); + + /* + ** The links entry should be 0xFFFF; we set it up + ** with a mask to say how many PHBs to use, and + ** which links to use. + */ + if ( (RWORD(ParmMapP->links) & 0xFFFF) != 0xFFFF ) { + rio_dprintk (RIO_DEBUG_BOOT, "RIO Mesg Run Fail %s\n", HostP->Name); + rio_dprintk (RIO_DEBUG_BOOT, "Links = 0x%x\n",RWORD(ParmMapP->links)); + HOST_DISABLE; + } + + WWORD(ParmMapP->links , RIO_LINK_ENABLE); + + /* + ** now wait for the card to set all the parmmap->XXX stuff + ** this is a wait of upto two seconds.... + */ + rio_dprintk (RIO_DEBUG_BOOT, "Looking for init_done - %d ticks\n",p->RIOConf.StartupTime); + HostP->timeout_id = 0; + for ( wait_count=0; (wait_count<p->RIOConf.StartupTime) && + !RWORD(ParmMapP->init_done); wait_count++ ) { + rio_dprintk (RIO_DEBUG_BOOT, "Waiting for init_done\n"); + delay(HostP, HUNDRED_MS); + } + rio_dprintk (RIO_DEBUG_BOOT, "OK! init_done!\n"); + + if (RWORD(ParmMapP->error) != E_NO_ERROR || + !RWORD(ParmMapP->init_done) ) { + rio_dprintk (RIO_DEBUG_BOOT, "RIO Mesg Run Fail %s\n", HostP->Name); + rio_dprintk (RIO_DEBUG_BOOT, "Timedout waiting for init_done\n"); + HOST_DISABLE; + } + + rio_dprintk (RIO_DEBUG_BOOT, "Got init_done\n"); + + /* + ** It runs! It runs! + */ + rio_dprintk (RIO_DEBUG_BOOT, "Host ID %x Running\n",HostP->UniqueNum); + + /* + ** set the time period between interrupts. + */ + WWORD(ParmMapP->timer, (short)p->RIOConf.Timer ); + + /* + ** Translate all the 16 bit pointers in the __ParmMapR into + ** 32 bit pointers for the driver. + */ + HostP->ParmMapP = ParmMapP; + HostP->PhbP = (PHB*)RIO_PTR(Cad,RWORD(ParmMapP->phb_ptr)); + HostP->RupP = (RUP*)RIO_PTR(Cad,RWORD(ParmMapP->rups)); + HostP->PhbNumP = (ushort*)RIO_PTR(Cad,RWORD(ParmMapP->phb_num_ptr)); + HostP->LinkStrP = (LPB*)RIO_PTR(Cad,RWORD(ParmMapP->link_str_ptr)); + + /* + ** point the UnixRups at the real Rups + */ + for ( RupN = 0; RupN<MAX_RUP; RupN++ ) { + HostP->UnixRups[RupN].RupP = &HostP->RupP[RupN]; + HostP->UnixRups[RupN].Id = RupN+1; + HostP->UnixRups[RupN].BaseSysPort = NO_PORT; + spin_lock_init(&HostP->UnixRups[RupN].RupLock); + } + + for ( RupN = 0; RupN<LINKS_PER_UNIT; RupN++ ) { + HostP->UnixRups[RupN+MAX_RUP].RupP = &HostP->LinkStrP[RupN].rup; + HostP->UnixRups[RupN+MAX_RUP].Id = 0; + HostP->UnixRups[RupN+MAX_RUP].BaseSysPort = NO_PORT; + spin_lock_init(&HostP->UnixRups[RupN+MAX_RUP].RupLock); + } + + /* + ** point the PortP->Phbs at the real Phbs + */ + for ( PortN=p->RIOFirstPortsMapped; + PortN<p->RIOLastPortsMapped+PORTS_PER_RTA; PortN++ ) { + if ( p->RIOPortp[PortN]->HostP == HostP ) { + struct Port *PortP = p->RIOPortp[PortN]; + struct PHB *PhbP; + /* int oldspl; */ + + if ( !PortP->Mapped ) + continue; + + PhbP = &HostP->PhbP[PortP->HostPort]; + rio_spin_lock_irqsave(&PortP->portSem, flags); + + PortP->PhbP = PhbP; + + PortP->TxAdd = (WORD *)RIO_PTR(Cad,RWORD(PhbP->tx_add)); + PortP->TxStart = (WORD *)RIO_PTR(Cad,RWORD(PhbP->tx_start)); + PortP->TxEnd = (WORD *)RIO_PTR(Cad,RWORD(PhbP->tx_end)); + PortP->RxRemove = (WORD *)RIO_PTR(Cad,RWORD(PhbP->rx_remove)); + PortP->RxStart = (WORD *)RIO_PTR(Cad,RWORD(PhbP->rx_start)); + PortP->RxEnd = (WORD *)RIO_PTR(Cad,RWORD(PhbP->rx_end)); + + rio_spin_unlock_irqrestore(&PortP->portSem, flags); + /* + ** point the UnixRup at the base SysPort + */ + if ( !(PortN % PORTS_PER_RTA) ) + HostP->UnixRups[PortP->RupNum].BaseSysPort = PortN; + } + } + + rio_dprintk (RIO_DEBUG_BOOT, "Set the card running... \n"); + /* + ** last thing - show the world that everything is in place + */ + HostP->Flags &= ~RUN_STATE; + HostP->Flags |= RC_RUNNING; + } + /* + ** MPX always uses a poller. This is actually patched into the system + ** configuration and called directly from each clock tick. + ** + */ + p->RIOPolling = 1; + + p->RIOSystemUp++; + + rio_dprintk (RIO_DEBUG_BOOT, "Done everything %x\n", HostP->Ivec); + func_exit (); + return 0; +} + + + +/* +** Boot an RTA. If we have successfully processed this boot, then +** return 1. If we havent, then return 0. +*/ +int +RIOBootRup( p, Rup, HostP, PacketP) +struct rio_info * p; +uint Rup; +struct Host *HostP; +struct PKT *PacketP; +{ + struct PktCmd *PktCmdP = (struct PktCmd *)PacketP->data; + struct PktCmd_M *PktReplyP; + struct CmdBlk *CmdBlkP; + uint sequence; + +#ifdef CHECK + CheckHost(Host); + CheckRup(Rup); + CheckHostP(HostP); + CheckPacketP(PacketP); +#endif + + /* + ** If we haven't been told what to boot, we can't boot it. + */ + if ( p->RIONumBootPkts == 0 ) { + rio_dprintk (RIO_DEBUG_BOOT, "No RTA code to download yet\n"); + return 0; + } + + /* rio_dprint(RIO_DEBUG_BOOT, NULL,DBG_BOOT,"Incoming command packet\n"); */ + /* ShowPacket( DBG_BOOT, PacketP ); */ + + /* + ** Special case of boot completed - if we get one of these then we + ** don't need a command block. For all other cases we do, so handle + ** this first and then get a command block, then handle every other + ** case, relinquishing the command block if disaster strikes! + */ + if ( (RBYTE(PacketP->len) & PKT_CMD_BIT) && + (RBYTE(PktCmdP->Command)==BOOT_COMPLETED) ) + return RIOBootComplete(p, HostP, Rup, PktCmdP ); + + /* + ** try to unhook a command block from the command free list. + */ + if ( !(CmdBlkP = RIOGetCmdBlk()) ) { + rio_dprintk (RIO_DEBUG_BOOT, "No command blocks to boot RTA! come back later.\n"); + return 0; + } + + /* + ** Fill in the default info on the command block + */ + CmdBlkP->Packet.dest_unit = Rup < (ushort)MAX_RUP ? Rup : 0; + CmdBlkP->Packet.dest_port = BOOT_RUP; + CmdBlkP->Packet.src_unit = 0; + CmdBlkP->Packet.src_port = BOOT_RUP; + + CmdBlkP->PreFuncP = CmdBlkP->PostFuncP = NULL; + PktReplyP = (struct PktCmd_M *)CmdBlkP->Packet.data; + + /* + ** process COMMANDS on the boot rup! + */ + if ( RBYTE(PacketP->len) & PKT_CMD_BIT ) { + /* + ** We only expect one type of command - a BOOT_REQUEST! + */ + if ( RBYTE(PktCmdP->Command) != BOOT_REQUEST ) { + rio_dprintk (RIO_DEBUG_BOOT, "Unexpected command %d on BOOT RUP %d of host %d\n", + PktCmdP->Command,Rup,HostP-p->RIOHosts); + ShowPacket( DBG_BOOT, PacketP ); + RIOFreeCmdBlk( CmdBlkP ); + return 1; + } + + /* + ** Build a Boot Sequence command block + ** + ** 02.03.1999 ARG - ESIL 0820 fix + ** We no longer need to use "Boot Mode", we'll always allow + ** boot requests - the boot will not complete if the device + ** appears in the bindings table. + ** So, this conditional is not required ... + ** + if (p->RIOBootMode == RC_BOOT_NONE) + ** + ** If the system is in slave mode, and a boot request is + ** received, set command to BOOT_ABORT so that the boot + ** will not complete. + ** + PktReplyP->Command = BOOT_ABORT; + else + ** + ** We'll just (always) set the command field in packet reply + ** to allow an attempted boot sequence : + */ + PktReplyP->Command = BOOT_SEQUENCE; + + PktReplyP->BootSequence.NumPackets = p->RIONumBootPkts; + PktReplyP->BootSequence.LoadBase = p->RIOConf.RtaLoadBase; + PktReplyP->BootSequence.CodeSize = p->RIOBootCount; + + CmdBlkP->Packet.len = BOOT_SEQUENCE_LEN | PKT_CMD_BIT; + + bcopy("BOOT",(void *)&CmdBlkP->Packet.data[BOOT_SEQUENCE_LEN],4); + + rio_dprintk (RIO_DEBUG_BOOT, "Boot RTA on Host %d Rup %d - %d (0x%x) packets to 0x%x\n", + HostP-p->RIOHosts, Rup, p->RIONumBootPkts, p->RIONumBootPkts, + p->RIOConf.RtaLoadBase); + + /* + ** If this host is in slave mode, send the RTA an invalid boot + ** sequence command block to force it to kill the boot. We wait + ** for half a second before sending this packet to prevent the RTA + ** attempting to boot too often. The master host should then grab + ** the RTA and make it its own. + */ + p->RIOBooting++; + RIOQueueCmdBlk( HostP, Rup, CmdBlkP ); + return 1; + } + + /* + ** It is a request for boot data. + */ + sequence = RWORD(PktCmdP->Sequence); + + rio_dprintk (RIO_DEBUG_BOOT, "Boot block %d on Host %d Rup%d\n",sequence,HostP-p->RIOHosts,Rup); + + if ( sequence >= p->RIONumBootPkts ) { + rio_dprintk (RIO_DEBUG_BOOT, "Got a request for packet %d, max is %d\n", sequence, + p->RIONumBootPkts); + ShowPacket( DBG_BOOT, PacketP ); + } + + PktReplyP->Sequence = sequence; + + bcopy( p->RIOBootPackets[ p->RIONumBootPkts - sequence - 1 ], + PktReplyP->BootData, RTA_BOOT_DATA_SIZE ); + + CmdBlkP->Packet.len = PKT_MAX_DATA_LEN; + ShowPacket( DBG_BOOT, &CmdBlkP->Packet ); + RIOQueueCmdBlk( HostP, Rup, CmdBlkP ); + return 1; +} + +/* +** This function is called when an RTA been booted. +** If booted by a host, HostP->HostUniqueNum is the booting host. +** If booted by an RTA, HostP->Mapping[Rup].RtaUniqueNum is the booting RTA. +** RtaUniq is the booted RTA. +*/ +static int RIOBootComplete( struct rio_info *p, struct Host *HostP, uint Rup, struct PktCmd *PktCmdP ) +{ + struct Map *MapP = NULL; + struct Map *MapP2 = NULL; + int Flag; + int found; + int host, rta; + int EmptySlot = -1; + int entry, entry2; + char *MyType, *MyName; + uint MyLink; + ushort RtaType; + uint RtaUniq = (RBYTE(PktCmdP->UniqNum[0])) + + (RBYTE(PktCmdP->UniqNum[1]) << 8) + + (RBYTE(PktCmdP->UniqNum[2]) << 16) + + (RBYTE(PktCmdP->UniqNum[3]) << 24); + + /* Was RIOBooting-- . That's bad. If an RTA sends two of them, the + driver will never think that the RTA has booted... -- REW */ + p->RIOBooting = 0; + + rio_dprintk (RIO_DEBUG_BOOT, "RTA Boot completed - BootInProgress now %d\n", p->RIOBooting); + + /* + ** Determine type of unit (16/8 port RTA). + */ + RtaType = GetUnitType(RtaUniq); + if ( Rup >= (ushort)MAX_RUP ) { + rio_dprintk (RIO_DEBUG_BOOT, "RIO: Host %s has booted an RTA(%d) on link %c\n", + HostP->Name, 8 * RtaType, RBYTE(PktCmdP->LinkNum)+'A'); + } else { + rio_dprintk (RIO_DEBUG_BOOT, "RIO: RTA %s has booted an RTA(%d) on link %c\n", + HostP->Mapping[Rup].Name, 8 * RtaType, + RBYTE(PktCmdP->LinkNum)+'A'); + } + + rio_dprintk (RIO_DEBUG_BOOT, "UniqNum is 0x%x\n",RtaUniq); + + if ( ( RtaUniq == 0x00000000 ) || ( RtaUniq == 0xffffffff ) ) + { + rio_dprintk (RIO_DEBUG_BOOT, "Illegal RTA Uniq Number\n"); + return TRUE; + } + + /* + ** If this RTA has just booted an RTA which doesn't belong to this + ** system, or the system is in slave mode, do not attempt to create + ** a new table entry for it. + */ + if (!RIOBootOk(p, HostP, RtaUniq)) + { + MyLink = RBYTE(PktCmdP->LinkNum); + if (Rup < (ushort) MAX_RUP) + { + /* + ** RtaUniq was clone booted (by this RTA). Instruct this RTA + ** to hold off further attempts to boot on this link for 30 + ** seconds. + */ + if (RIOSuspendBootRta(HostP, HostP->Mapping[Rup].ID, MyLink)) + { + rio_dprintk (RIO_DEBUG_BOOT, "RTA failed to suspend booting on link %c\n", + 'A' + MyLink); + } + } + else + { + /* + ** RtaUniq was booted by this host. Set the booting link + ** to hold off for 30 seconds to give another unit a + ** chance to boot it. + */ + WWORD(HostP->LinkStrP[MyLink].WaitNoBoot, 30); + } + rio_dprintk (RIO_DEBUG_BOOT, "RTA %x not owned - suspend booting down link %c on unit %x\n", + RtaUniq, 'A' + MyLink, HostP->Mapping[Rup].RtaUniqueNum); + return TRUE; + } + + /* + ** Check for a SLOT_IN_USE entry for this RTA attached to the + ** current host card in the driver table. + ** + ** If it exists, make a note that we have booted it. Other parts of + ** the driver are interested in this information at a later date, + ** in particular when the booting RTA asks for an ID for this unit, + ** we must have set the BOOTED flag, and the NEWBOOT flag is used + ** to force an open on any ports that where previously open on this + ** unit. + */ + for ( entry=0; entry<MAX_RUP; entry++ ) + { + uint sysport; + + if ((HostP->Mapping[entry].Flags & SLOT_IN_USE) && + (HostP->Mapping[entry].RtaUniqueNum==RtaUniq)) + { + HostP->Mapping[entry].Flags |= RTA_BOOTED|RTA_NEWBOOT; +#if NEED_TO_FIX + RIO_SV_BROADCAST(HostP->svFlags[entry]); +#endif + if ( (sysport=HostP->Mapping[entry].SysPort) != NO_PORT ) + { + if ( sysport < p->RIOFirstPortsBooted ) + p->RIOFirstPortsBooted = sysport; + if ( sysport > p->RIOLastPortsBooted ) + p->RIOLastPortsBooted = sysport; + /* + ** For a 16 port RTA, check the second bank of 8 ports + */ + if (RtaType == TYPE_RTA16) + { + entry2 = HostP->Mapping[entry].ID2 - 1; + HostP->Mapping[entry2].Flags |= RTA_BOOTED|RTA_NEWBOOT; +#if NEED_TO_FIX + RIO_SV_BROADCAST(HostP->svFlags[entry2]); +#endif + sysport = HostP->Mapping[entry2].SysPort; + if ( sysport < p->RIOFirstPortsBooted ) + p->RIOFirstPortsBooted = sysport; + if ( sysport > p->RIOLastPortsBooted ) + p->RIOLastPortsBooted = sysport; + } + } + if (RtaType == TYPE_RTA16) { + rio_dprintk (RIO_DEBUG_BOOT, "RTA will be given IDs %d+%d\n", + entry+1, entry2+1); + } else { + rio_dprintk (RIO_DEBUG_BOOT, "RTA will be given ID %d\n",entry+1); + } + return TRUE; + } + } + + rio_dprintk (RIO_DEBUG_BOOT, "RTA not configured for this host\n"); + + if ( Rup >= (ushort)MAX_RUP ) + { + /* + ** It was a host that did the booting + */ + MyType = "Host"; + MyName = HostP->Name; + } + else + { + /* + ** It was an RTA that did the booting + */ + MyType = "RTA"; + MyName = HostP->Mapping[Rup].Name; + } +#ifdef CHECK + CheckString(MyType); + CheckString(MyName); +#endif + + MyLink = RBYTE(PktCmdP->LinkNum); + + /* + ** There is no SLOT_IN_USE entry for this RTA attached to the current + ** host card in the driver table. + ** + ** Check for a SLOT_TENTATIVE entry for this RTA attached to the + ** current host card in the driver table. + ** + ** If we find one, then we re-use that slot. + */ + for ( entry=0; entry<MAX_RUP; entry++ ) + { + if ( (HostP->Mapping[entry].Flags & SLOT_TENTATIVE) && + (HostP->Mapping[entry].RtaUniqueNum == RtaUniq) ) + { + if (RtaType == TYPE_RTA16) + { + entry2 = HostP->Mapping[entry].ID2 - 1; + if ( (HostP->Mapping[entry2].Flags & SLOT_TENTATIVE) && + (HostP->Mapping[entry2].RtaUniqueNum == RtaUniq) ) + rio_dprintk (RIO_DEBUG_BOOT, "Found previous tentative slots (%d+%d)\n", + entry, entry2); + else + continue; + } + else + rio_dprintk (RIO_DEBUG_BOOT, "Found previous tentative slot (%d)\n",entry); + if (! p->RIONoMessage) + cprintf("RTA connected to %s '%s' (%c) not configured.\n",MyType,MyName,MyLink+'A'); + return TRUE; + } + } + + /* + ** There is no SLOT_IN_USE or SLOT_TENTATIVE entry for this RTA + ** attached to the current host card in the driver table. + ** + ** Check if there is a SLOT_IN_USE or SLOT_TENTATIVE entry on another + ** host for this RTA in the driver table. + ** + ** For a SLOT_IN_USE entry on another host, we need to delete the RTA + ** entry from the other host and add it to this host (using some of + ** the functions from table.c which do this). + ** For a SLOT_TENTATIVE entry on another host, we must cope with the + ** following scenario: + ** + ** + Plug 8 port RTA into host A. (This creates SLOT_TENTATIVE entry + ** in table) + ** + Unplug RTA and plug into host B. (We now have 2 SLOT_TENTATIVE + ** entries) + ** + Configure RTA on host B. (This slot now becomes SLOT_IN_USE) + ** + Unplug RTA and plug back into host A. + ** + Configure RTA on host A. We now have the same RTA configured + ** with different ports on two different hosts. + */ + rio_dprintk (RIO_DEBUG_BOOT, "Have we seen RTA %x before?\n", RtaUniq ); + found = 0; + Flag = 0; /* Convince the compiler this variable is initialized */ + for ( host = 0; !found && (host < p->RIONumHosts); host++ ) + { + for ( rta=0; rta<MAX_RUP; rta++ ) + { + if ((p->RIOHosts[host].Mapping[rta].Flags & + (SLOT_IN_USE | SLOT_TENTATIVE)) && + (p->RIOHosts[host].Mapping[rta].RtaUniqueNum==RtaUniq)) + { + Flag = p->RIOHosts[host].Mapping[rta].Flags; + MapP = &p->RIOHosts[host].Mapping[rta]; + if (RtaType == TYPE_RTA16) + { + MapP2 = &p->RIOHosts[host].Mapping[MapP->ID2 - 1]; + rio_dprintk (RIO_DEBUG_BOOT, "This RTA is units %d+%d from host %s\n", + rta+1, MapP->ID2, p->RIOHosts[host].Name); + } + else + rio_dprintk (RIO_DEBUG_BOOT, "This RTA is unit %d from host %s\n", + rta+1, p->RIOHosts[host].Name); + found = 1; + break; + } + } + } + + /* + ** There is no SLOT_IN_USE or SLOT_TENTATIVE entry for this RTA + ** attached to the current host card in the driver table. + ** + ** If we have not found a SLOT_IN_USE or SLOT_TENTATIVE entry on + ** another host for this RTA in the driver table... + ** + ** Check for a SLOT_IN_USE entry for this RTA in the config table. + */ + if ( !MapP ) + { + rio_dprintk (RIO_DEBUG_BOOT, "Look for RTA %x in RIOSavedTable\n",RtaUniq); + for ( rta=0; rta < TOTAL_MAP_ENTRIES; rta++ ) + { + rio_dprintk (RIO_DEBUG_BOOT, "Check table entry %d (%x)", + rta, + p->RIOSavedTable[rta].RtaUniqueNum); + + if ( (p->RIOSavedTable[rta].Flags & SLOT_IN_USE) && + (p->RIOSavedTable[rta].RtaUniqueNum == RtaUniq) ) + { + MapP = &p->RIOSavedTable[rta]; + Flag = p->RIOSavedTable[rta].Flags; + if (RtaType == TYPE_RTA16) + { + for (entry2 = rta + 1; entry2 < TOTAL_MAP_ENTRIES; + entry2++) + { + if (p->RIOSavedTable[entry2].RtaUniqueNum == RtaUniq) + break; + } + MapP2 = &p->RIOSavedTable[entry2]; + rio_dprintk (RIO_DEBUG_BOOT, "This RTA is from table entries %d+%d\n", + rta, entry2); + } + else + rio_dprintk (RIO_DEBUG_BOOT, "This RTA is from table entry %d\n", rta); + break; + } + } + } + + /* + ** There is no SLOT_IN_USE or SLOT_TENTATIVE entry for this RTA + ** attached to the current host card in the driver table. + ** + ** We may have found a SLOT_IN_USE entry on another host for this + ** RTA in the config table, or a SLOT_IN_USE or SLOT_TENTATIVE entry + ** on another host for this RTA in the driver table. + ** + ** Check the driver table for room to fit this newly discovered RTA. + ** RIOFindFreeID() first looks for free slots and if it does not + ** find any free slots it will then attempt to oust any + ** tentative entry in the table. + */ + EmptySlot = 1; + if (RtaType == TYPE_RTA16) + { + if (RIOFindFreeID(p, HostP, &entry, &entry2) == 0) + { + RIODefaultName(p, HostP, entry); + FillSlot(entry, entry2, RtaUniq, HostP); + EmptySlot = 0; + } + } + else + { + if (RIOFindFreeID(p, HostP, &entry, NULL) == 0) + { + RIODefaultName(p, HostP, entry); + FillSlot(entry, 0, RtaUniq, HostP); + EmptySlot = 0; + } + } + + /* + ** There is no SLOT_IN_USE or SLOT_TENTATIVE entry for this RTA + ** attached to the current host card in the driver table. + ** + ** If we found a SLOT_IN_USE entry on another host for this + ** RTA in the config or driver table, and there are enough free + ** slots in the driver table, then we need to move it over and + ** delete it from the other host. + ** If we found a SLOT_TENTATIVE entry on another host for this + ** RTA in the driver table, just delete the other host entry. + */ + if (EmptySlot == 0) + { + if ( MapP ) + { + if (Flag & SLOT_IN_USE) + { + rio_dprintk (RIO_DEBUG_BOOT, + "This RTA configured on another host - move entry to current host (1)\n"); + HostP->Mapping[entry].SysPort = MapP->SysPort; + CCOPY( MapP->Name, HostP->Mapping[entry].Name, MAX_NAME_LEN ); + HostP->Mapping[entry].Flags = + SLOT_IN_USE | RTA_BOOTED | RTA_NEWBOOT; +#if NEED_TO_FIX + RIO_SV_BROADCAST(HostP->svFlags[entry]); +#endif + RIOReMapPorts( p, HostP, &HostP->Mapping[entry] ); + if ( HostP->Mapping[entry].SysPort < p->RIOFirstPortsBooted ) + p->RIOFirstPortsBooted = HostP->Mapping[entry].SysPort; + if ( HostP->Mapping[entry].SysPort > p->RIOLastPortsBooted ) + p->RIOLastPortsBooted = HostP->Mapping[entry].SysPort; + rio_dprintk (RIO_DEBUG_BOOT, "SysPort %d, Name %s\n",(int)MapP->SysPort,MapP->Name); + } + else + { + rio_dprintk (RIO_DEBUG_BOOT, + "This RTA has a tentative entry on another host - delete that entry (1)\n"); + HostP->Mapping[entry].Flags = + SLOT_TENTATIVE | RTA_BOOTED | RTA_NEWBOOT; +#if NEED_TO_FIX + RIO_SV_BROADCAST(HostP->svFlags[entry]); +#endif + } + if (RtaType == TYPE_RTA16) + { + if (Flag & SLOT_IN_USE) + { + HostP->Mapping[entry2].Flags = SLOT_IN_USE | + RTA_BOOTED | RTA_NEWBOOT | RTA16_SECOND_SLOT; +#if NEED_TO_FIX + RIO_SV_BROADCAST(HostP->svFlags[entry2]); +#endif + HostP->Mapping[entry2].SysPort = MapP2->SysPort; + /* + ** Map second block of ttys for 16 port RTA + */ + RIOReMapPorts( p, HostP, &HostP->Mapping[entry2] ); + if (HostP->Mapping[entry2].SysPort < p->RIOFirstPortsBooted) + p->RIOFirstPortsBooted = HostP->Mapping[entry2].SysPort; + if (HostP->Mapping[entry2].SysPort > p->RIOLastPortsBooted) + p->RIOLastPortsBooted = HostP->Mapping[entry2].SysPort; + rio_dprintk (RIO_DEBUG_BOOT, "SysPort %d, Name %s\n", + (int)HostP->Mapping[entry2].SysPort, + HostP->Mapping[entry].Name); + } + else + HostP->Mapping[entry2].Flags = SLOT_TENTATIVE | + RTA_BOOTED | RTA_NEWBOOT | RTA16_SECOND_SLOT; +#if NEED_TO_FIX + RIO_SV_BROADCAST(HostP->svFlags[entry2]); +#endif + bzero( (caddr_t)MapP2, sizeof(struct Map) ); + } + bzero( (caddr_t)MapP, sizeof(struct Map) ); + if (! p->RIONoMessage) + cprintf("An orphaned RTA has been adopted by %s '%s' (%c).\n",MyType,MyName,MyLink+'A'); + } + else if (! p->RIONoMessage) + cprintf("RTA connected to %s '%s' (%c) not configured.\n",MyType,MyName,MyLink+'A'); + RIOSetChange(p); + return TRUE; + } + + /* + ** There is no room in the driver table to make an entry for the + ** booted RTA. Keep a note of its Uniq Num in the overflow table, + ** so we can ignore it's ID requests. + */ + if (! p->RIONoMessage) + cprintf("The RTA connected to %s '%s' (%c) cannot be configured. You cannot configure more than 128 ports to one host card.\n",MyType,MyName,MyLink+'A'); + for ( entry=0; entry<HostP->NumExtraBooted; entry++ ) + { + if ( HostP->ExtraUnits[entry] == RtaUniq ) + { + /* + ** already got it! + */ + return TRUE; + } + } + /* + ** If there is room, add the unit to the list of extras + */ + if ( HostP->NumExtraBooted < MAX_EXTRA_UNITS ) + HostP->ExtraUnits[HostP->NumExtraBooted++] = RtaUniq; + return TRUE; +} + + +/* +** If the RTA or its host appears in the RIOBindTab[] structure then +** we mustn't boot the RTA and should return FALSE. +** This operation is slightly different from the other drivers for RIO +** in that this is designed to work with the new utilities +** not config.rio and is FAR SIMPLER. +** We no longer support the RIOBootMode variable. It is all done from the +** "boot/noboot" field in the rio.cf file. +*/ +int +RIOBootOk(p, HostP, RtaUniq) +struct rio_info * p; +struct Host * HostP; +ulong RtaUniq; +{ + int Entry; + uint HostUniq = HostP->UniqueNum; + + /* + ** Search bindings table for RTA or its parent. + ** If it exists, return 0, else 1. + */ + for (Entry = 0; + ( Entry < MAX_RTA_BINDINGS ) && ( p->RIOBindTab[Entry] != 0 ); + Entry++) + { + if ( (p->RIOBindTab[Entry] == HostUniq) || + (p->RIOBindTab[Entry] == RtaUniq) ) + return 0; + } + return 1; +} + +/* +** Make an empty slot tentative. If this is a 16 port RTA, make both +** slots tentative, and the second one RTA_SECOND_SLOT as well. +*/ + +void +FillSlot(entry, entry2, RtaUniq, HostP) +int entry; +int entry2; +uint RtaUniq; +struct Host *HostP; +{ + int link; + + rio_dprintk (RIO_DEBUG_BOOT, "FillSlot(%d, %d, 0x%x...)\n", entry, entry2, RtaUniq); + + HostP->Mapping[entry].Flags = (RTA_BOOTED | RTA_NEWBOOT | SLOT_TENTATIVE); + HostP->Mapping[entry].SysPort = NO_PORT; + HostP->Mapping[entry].RtaUniqueNum = RtaUniq; + HostP->Mapping[entry].HostUniqueNum = HostP->UniqueNum; + HostP->Mapping[entry].ID = entry + 1; + HostP->Mapping[entry].ID2 = 0; + if (entry2) { + HostP->Mapping[entry2].Flags = (RTA_BOOTED | RTA_NEWBOOT | + SLOT_TENTATIVE | RTA16_SECOND_SLOT); + HostP->Mapping[entry2].SysPort = NO_PORT; + HostP->Mapping[entry2].RtaUniqueNum = RtaUniq; + HostP->Mapping[entry2].HostUniqueNum = HostP->UniqueNum; + HostP->Mapping[entry2].Name[0] = '\0'; + HostP->Mapping[entry2].ID = entry2 + 1; + HostP->Mapping[entry2].ID2 = entry + 1; + HostP->Mapping[entry].ID2 = entry2 + 1; + } + /* + ** Must set these up, so that utilities show + ** topology of 16 port RTAs correctly + */ + for ( link=0; link<LINKS_PER_UNIT; link++ ) { + HostP->Mapping[entry].Topology[link].Unit = ROUTE_DISCONNECT; + HostP->Mapping[entry].Topology[link].Link = NO_LINK; + if (entry2) { + HostP->Mapping[entry2].Topology[link].Unit = ROUTE_DISCONNECT; + HostP->Mapping[entry2].Topology[link].Link = NO_LINK; + } + } +} + +#if 0 +/* + Function: This function is to disable the disk interrupt + Returns : Nothing +*/ +void +disable_interrupt(vector) +int vector; +{ + int ps; + int val; + + disable(ps); + if (vector > 40) { + val = 1 << (vector - 40); + __outb(S8259+1, __inb(S8259+1) | val); + } + else { + val = 1 << (vector - 32); + __outb(M8259+1, __inb(M8259+1) | val); + } + restore(ps); +} + +/* + Function: This function is to enable the disk interrupt + Returns : Nothing +*/ +void +enable_interrupt(vector) +int vector; +{ + int ps; + int val; + + disable(ps); + if (vector > 40) { + val = 1 << (vector - 40); + val = ~val; + __outb(S8259+1, __inb(S8259+1) & val); + } + else { + val = 1 << (vector - 32); + val = ~val; + __outb(M8259+1, __inb(M8259+1) & val); + } + restore(ps); +} +#endif |