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e2b3afd676
android_kernel_xiaomi_sdm845/drivers/char/rio/riotable.c
Alan Cox e2b3afd676 [PATCH] rio driver rework continued #2 
First large chunk of code cleanup.  The split between this and #3 and #4 is
fairly arbitary and due to the message length limit on the list.  These
patches continue the process of ripping out macros and typedefs while cleaning
up lots of 32bit assumptions.  Several inlines for compatibility also get
removed and that causes a lot of noise.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24 07:33:29 -08:00

952 lines
30 KiB
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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 : riotable.c
** SID : 1.2
** Last Modified : 11/6/98 10:33:47
** Retrieved : 11/6/98 10:33:50
**
** ident @(#)riotable.c 1.2
**
** -----------------------------------------------------------------------------
*/
#ifdef SCCS_LABELS
static char *_riotable_c_sccs_ = "@(#)riotable.c 1.2";
#endif
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/errno.h>
#include <linux/interrupt.h>
#include <linux/string.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 "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"
#include "control.h"
#include "cirrus.h"
#include "rioioctl.h"
#include "param.h"
#include "list.h"
#include "sam.h"
#include "protsts.h"
/*
** A configuration table has been loaded. It is now up to us
** to sort it out and use the information contained therein.
*/
int RIONewTable(struct rio_info *p)
{
int Host, Host1, Host2, NameIsUnique, Entry, SubEnt;
struct Map *MapP;
struct Map *HostMapP;
struct Host *HostP;
char *cptr;
/*
** We have been sent a new table to install. We need to break
** it down into little bits and spread it around a bit to see
** what we have got.
*/
/*
** Things to check:
** (things marked 'xx' aren't checked any more!)
** (1) That there are no booted Hosts/RTAs out there.
** (2) That the names are properly formed
** (3) That blank entries really are.
** xx (4) That hosts mentioned in the table actually exist. xx
** (5) That the IDs are unique (per host).
** (6) That host IDs are zero
** (7) That port numbers are valid
** (8) That port numbers aren't duplicated
** (9) That names aren't duplicated
** xx (10) That hosts that actually exist are mentioned in the table. xx
*/
rio_dprintk(RIO_DEBUG_TABLE, "RIONewTable: entering(1)\n");
if (p->RIOSystemUp) { /* (1) */
p->RIOError.Error = HOST_HAS_ALREADY_BEEN_BOOTED;
return -EBUSY;
}
p->RIOError.Error = NOTHING_WRONG_AT_ALL;
p->RIOError.Entry = -1;
p->RIOError.Other = -1;
for (Entry = 0; Entry < TOTAL_MAP_ENTRIES; Entry++) {
MapP = &p->RIOConnectTable[Entry];
if ((MapP->Flags & RTA16_SECOND_SLOT) == 0) {
rio_dprintk(RIO_DEBUG_TABLE, "RIONewTable: entering(2)\n");
cptr = MapP->Name; /* (2) */
cptr[MAX_NAME_LEN - 1] = '\0';
if (cptr[0] == '\0') {
bcopy(MapP->RtaUniqueNum ? "RTA NN" : "HOST NN", MapP->Name, 8);
MapP->Name[5] = '0' + Entry / 10;
MapP->Name[6] = '0' + Entry % 10;
}
while (*cptr) {
if (*cptr < ' ' || *cptr > '~') {
p->RIOError.Error = BAD_CHARACTER_IN_NAME;
p->RIOError.Entry = Entry;
return -ENXIO;
}
cptr++;
}
}
/*
** If the entry saved was a tentative entry then just forget
** about it.
*/
if (MapP->Flags & SLOT_TENTATIVE) {
MapP->HostUniqueNum = 0;
MapP->RtaUniqueNum = 0;
continue;
}
rio_dprintk(RIO_DEBUG_TABLE, "RIONewTable: entering(3)\n");
if (!MapP->RtaUniqueNum && !MapP->HostUniqueNum) { /* (3) */
if (MapP->ID || MapP->SysPort || MapP->Flags) {
rio_dprintk(RIO_DEBUG_TABLE, "%s pretending to be empty but isn't\n", MapP->Name);
p->RIOError.Error = TABLE_ENTRY_ISNT_PROPERLY_NULL;
p->RIOError.Entry = Entry;
return -ENXIO;
}
rio_dprintk(RIO_DEBUG_TABLE, "!RIO: Daemon: test (3) passes\n");
continue;
}
rio_dprintk(RIO_DEBUG_TABLE, "RIONewTable: entering(4)\n");
for (Host = 0; Host < p->RIONumHosts; Host++) { /* (4) */
if (p->RIOHosts[Host].UniqueNum == MapP->HostUniqueNum) {
HostP = &p->RIOHosts[Host];
/*
** having done the lookup, we don't really want to do
** it again, so hang the host number in a safe place
*/
MapP->Topology[0].Unit = Host;
break;
}
}
if (Host >= p->RIONumHosts) {
rio_dprintk(RIO_DEBUG_TABLE, "RTA %s has unknown host unique number 0x%x\n", MapP->Name, MapP->HostUniqueNum);
MapP->HostUniqueNum = 0;
/* MapP->RtaUniqueNum = 0; */
/* MapP->ID = 0; */
/* MapP->Flags = 0; */
/* MapP->SysPort = 0; */
/* MapP->Name[0] = 0; */
continue;
}
rio_dprintk(RIO_DEBUG_TABLE, "RIONewTable: entering(5)\n");
if (MapP->RtaUniqueNum) { /* (5) */
if (!MapP->ID) {
rio_dprintk(RIO_DEBUG_TABLE, "RIO: RTA %s has been allocated an ID of zero!\n", MapP->Name);
p->RIOError.Error = ZERO_RTA_ID;
p->RIOError.Entry = Entry;
return -ENXIO;
}
if (MapP->ID > MAX_RUP) {
rio_dprintk(RIO_DEBUG_TABLE, "RIO: RTA %s has been allocated an invalid ID %d\n", MapP->Name, MapP->ID);
p->RIOError.Error = ID_NUMBER_OUT_OF_RANGE;
p->RIOError.Entry = Entry;
return -ENXIO;
}
for (SubEnt = 0; SubEnt < Entry; SubEnt++) {
if (MapP->HostUniqueNum == p->RIOConnectTable[SubEnt].HostUniqueNum && MapP->ID == p->RIOConnectTable[SubEnt].ID) {
rio_dprintk(RIO_DEBUG_TABLE, "Dupl. ID number allocated to RTA %s and RTA %s\n", MapP->Name, p->RIOConnectTable[SubEnt].Name);
p->RIOError.Error = DUPLICATED_RTA_ID;
p->RIOError.Entry = Entry;
p->RIOError.Other = SubEnt;
return -ENXIO;
}
/*
** If the RtaUniqueNum is the same, it may be looking at both
** entries for a 16 port RTA, so check the ids
*/
if ((MapP->RtaUniqueNum == p->RIOConnectTable[SubEnt].RtaUniqueNum)
&& (MapP->ID2 != p->RIOConnectTable[SubEnt].ID)) {
rio_dprintk(RIO_DEBUG_TABLE, "RTA %s has duplicate unique number\n", MapP->Name);
rio_dprintk(RIO_DEBUG_TABLE, "RTA %s has duplicate unique number\n", p->RIOConnectTable[SubEnt].Name);
p->RIOError.Error = DUPLICATE_UNIQUE_NUMBER;
p->RIOError.Entry = Entry;
p->RIOError.Other = SubEnt;
return -ENXIO;
}
}
rio_dprintk(RIO_DEBUG_TABLE, "RIONewTable: entering(7a)\n");
/* (7a) */
if ((MapP->SysPort != NO_PORT) && (MapP->SysPort % PORTS_PER_RTA)) {
rio_dprintk(RIO_DEBUG_TABLE, "TTY Port number %d-RTA %s is not a multiple of %d!\n", (int) MapP->SysPort, MapP->Name, PORTS_PER_RTA);
p->RIOError.Error = TTY_NUMBER_OUT_OF_RANGE;
p->RIOError.Entry = Entry;
return -ENXIO;
}
rio_dprintk(RIO_DEBUG_TABLE, "RIONewTable: entering(7b)\n");
/* (7b) */
if ((MapP->SysPort != NO_PORT) && (MapP->SysPort >= RIO_PORTS)) {
rio_dprintk(RIO_DEBUG_TABLE, "TTY Port number %d for RTA %s is too big\n", (int) MapP->SysPort, MapP->Name);
p->RIOError.Error = TTY_NUMBER_OUT_OF_RANGE;
p->RIOError.Entry = Entry;
return -ENXIO;
}
for (SubEnt = 0; SubEnt < Entry; SubEnt++) {
if (p->RIOConnectTable[SubEnt].Flags & RTA16_SECOND_SLOT)
continue;
if (p->RIOConnectTable[SubEnt].RtaUniqueNum) {
rio_dprintk(RIO_DEBUG_TABLE, "RIONewTable: entering(8)\n");
/* (8) */
if ((MapP->SysPort != NO_PORT) && (MapP->SysPort == p->RIOConnectTable[SubEnt].SysPort)) {
rio_dprintk(RIO_DEBUG_TABLE, "RTA %s:same TTY port # as RTA %s (%d)\n", MapP->Name, p->RIOConnectTable[SubEnt].Name, (int) MapP->SysPort);
p->RIOError.Error = TTY_NUMBER_IN_USE;
p->RIOError.Entry = Entry;
p->RIOError.Other = SubEnt;
return -ENXIO;
}
rio_dprintk(RIO_DEBUG_TABLE, "RIONewTable: entering(9)\n");
if (strcmp(MapP->Name, p->RIOConnectTable[SubEnt].Name) == 0 && !(MapP->Flags & RTA16_SECOND_SLOT)) { /* (9) */
rio_dprintk(RIO_DEBUG_TABLE, "RTA name %s used twice\n", MapP->Name);
p->RIOError.Error = NAME_USED_TWICE;
p->RIOError.Entry = Entry;
p->RIOError.Other = SubEnt;
return -ENXIO;
}
}
}
} else { /* (6) */
rio_dprintk(RIO_DEBUG_TABLE, "RIONewTable: entering(6)\n");
if (MapP->ID) {
rio_dprintk(RIO_DEBUG_TABLE, "RIO:HOST %s has been allocated ID that isn't zero!\n", MapP->Name);
p->RIOError.Error = HOST_ID_NOT_ZERO;
p->RIOError.Entry = Entry;
return -ENXIO;
}
if (MapP->SysPort != NO_PORT) {
rio_dprintk(RIO_DEBUG_TABLE, "RIO: HOST %s has been allocated port numbers!\n", MapP->Name);
p->RIOError.Error = HOST_SYSPORT_BAD;
p->RIOError.Entry = Entry;
return -ENXIO;
}
}
}
/*
** wow! if we get here then it's a goody!
*/
/*
** Zero the (old) entries for each host...
*/
for (Host = 0; Host < RIO_HOSTS; Host++) {
for (Entry = 0; Entry < MAX_RUP; Entry++) {
memset(&p->RIOHosts[Host].Mapping[Entry], 0, sizeof(struct Map));
}
memset(&p->RIOHosts[Host].Name[0], 0, sizeof(p->RIOHosts[Host].Name));
}
/*
** Copy in the new table entries
*/
for (Entry = 0; Entry < TOTAL_MAP_ENTRIES; Entry++) {
rio_dprintk(RIO_DEBUG_TABLE, "RIONewTable: Copy table for Host entry %d\n", Entry);
MapP = &p->RIOConnectTable[Entry];
/*
** Now, if it is an empty slot ignore it!
*/
if (MapP->HostUniqueNum == 0)
continue;
/*
** we saved the host number earlier, so grab it back
*/
HostP = &p->RIOHosts[MapP->Topology[0].Unit];
/*
** If it is a host, then we only need to fill in the name field.
*/
if (MapP->ID == 0) {
rio_dprintk(RIO_DEBUG_TABLE, "Host entry found. Name %s\n", MapP->Name);
bcopy(MapP->Name, HostP->Name, MAX_NAME_LEN);
continue;
}
/*
** Its an RTA entry, so fill in the host mapping entries for it
** and the port mapping entries. Notice that entry zero is for
** ID one.
*/
HostMapP = &HostP->Mapping[MapP->ID - 1];
if (MapP->Flags & SLOT_IN_USE) {
rio_dprintk(RIO_DEBUG_TABLE, "Rta entry found. Name %s\n", MapP->Name);
/*
** structure assign, then sort out the bits we shouldn't have done
*/
*HostMapP = *MapP;
HostMapP->Flags = SLOT_IN_USE;
if (MapP->Flags & RTA16_SECOND_SLOT)
HostMapP->Flags |= RTA16_SECOND_SLOT;
RIOReMapPorts(p, HostP, HostMapP);
} else {
rio_dprintk(RIO_DEBUG_TABLE, "TENTATIVE Rta entry found. Name %s\n", MapP->Name);
}
}
for (Entry = 0; Entry < TOTAL_MAP_ENTRIES; Entry++) {
p->RIOSavedTable[Entry] = p->RIOConnectTable[Entry];
}
for (Host = 0; Host < p->RIONumHosts; Host++) {
for (SubEnt = 0; SubEnt < LINKS_PER_UNIT; SubEnt++) {
p->RIOHosts[Host].Topology[SubEnt].Unit = ROUTE_DISCONNECT;
p->RIOHosts[Host].Topology[SubEnt].Link = NO_LINK;
}
for (Entry = 0; Entry < MAX_RUP; Entry++) {
for (SubEnt = 0; SubEnt < LINKS_PER_UNIT; SubEnt++) {
p->RIOHosts[Host].Mapping[Entry].Topology[SubEnt].Unit = ROUTE_DISCONNECT;
p->RIOHosts[Host].Mapping[Entry].Topology[SubEnt].Link = NO_LINK;
}
}
if (!p->RIOHosts[Host].Name[0]) {
bcopy("HOST 1", p->RIOHosts[Host].Name, 7);
p->RIOHosts[Host].Name[5] += Host;
}
/*
** Check that default name assigned is unique.
*/
Host1 = Host;
NameIsUnique = 0;
while (!NameIsUnique) {
NameIsUnique = 1;
for (Host2 = 0; Host2 < p->RIONumHosts; Host2++) {
if (Host2 == Host)
continue;
if (strcmp(p->RIOHosts[Host].Name, p->RIOHosts[Host2].Name)
== 0) {
NameIsUnique = 0;
Host1++;
if (Host1 >= p->RIONumHosts)
Host1 = 0;
p->RIOHosts[Host].Name[5] = '1' + Host1;
}
}
}
/*
** Rename host if name already used.
*/
if (Host1 != Host) {
rio_dprintk(RIO_DEBUG_TABLE, "Default name %s already used\n", p->RIOHosts[Host].Name);
bcopy("HOST 1", p->RIOHosts[Host].Name, 7);
p->RIOHosts[Host].Name[5] += Host1;
}
rio_dprintk(RIO_DEBUG_TABLE, "Assigning default name %s\n", p->RIOHosts[Host].Name);
}
return 0;
}
/*
** User process needs the config table - build it from first
** principles.
**
* FIXME: SMP locking
*/
int RIOApel(struct rio_info *p)
{
int Host;
int link;
int Rup;
int Next = 0;
struct Map *MapP;
struct Host *HostP;
unsigned long flags;
rio_dprintk(RIO_DEBUG_TABLE, "Generating a table to return to config.rio\n");
memset(&p->RIOConnectTable[0], 0, sizeof(struct Map) * TOTAL_MAP_ENTRIES);
for (Host = 0; Host < RIO_HOSTS; Host++) {
rio_dprintk(RIO_DEBUG_TABLE, "Processing host %d\n", Host);
HostP = &p->RIOHosts[Host];
rio_spin_lock_irqsave(&HostP->HostLock, flags);
MapP = &p->RIOConnectTable[Next++];
MapP->HostUniqueNum = HostP->UniqueNum;
if ((HostP->Flags & RUN_STATE) != RC_RUNNING)
continue;
MapP->RtaUniqueNum = 0;
MapP->ID = 0;
MapP->Flags = SLOT_IN_USE;
MapP->SysPort = NO_PORT;
for (link = 0; link < LINKS_PER_UNIT; link++)
MapP->Topology[link] = HostP->Topology[link];
bcopy(HostP->Name, MapP->Name, MAX_NAME_LEN);
for (Rup = 0; Rup < MAX_RUP; Rup++) {
if (HostP->Mapping[Rup].Flags & (SLOT_IN_USE | SLOT_TENTATIVE)) {
p->RIOConnectTable[Next] = HostP->Mapping[Rup];
if (HostP->Mapping[Rup].Flags & SLOT_IN_USE)
p->RIOConnectTable[Next].Flags |= SLOT_IN_USE;
if (HostP->Mapping[Rup].Flags & SLOT_TENTATIVE)
p->RIOConnectTable[Next].Flags |= SLOT_TENTATIVE;
if (HostP->Mapping[Rup].Flags & RTA16_SECOND_SLOT)
p->RIOConnectTable[Next].Flags |= RTA16_SECOND_SLOT;
Next++;
}
}
rio_spin_unlock_irqrestore(&HostP->HostLock, flags);
}
return 0;
}
/*
** config.rio has taken a dislike to one of the gross maps entries.
** if the entry is suitably inactive, then we can gob on it and remove
** it from the table.
*/
int RIODeleteRta(struct rio_info *p, struct Map *MapP)
{
int host, entry, port, link;
int SysPort;
struct Host *HostP;
struct Map *HostMapP;
struct Port *PortP;
int work_done = 0;
unsigned long lock_flags, sem_flags;
rio_dprintk(RIO_DEBUG_TABLE, "Delete entry on host %x, rta %x\n", MapP->HostUniqueNum, MapP->RtaUniqueNum);
for (host = 0; host < p->RIONumHosts; host++) {
HostP = &p->RIOHosts[host];
rio_spin_lock_irqsave(&HostP->HostLock, lock_flags);
if ((HostP->Flags & RUN_STATE) != RC_RUNNING) {
rio_spin_unlock_irqrestore(&HostP->HostLock, lock_flags);
continue;
}
for (entry = 0; entry < MAX_RUP; entry++) {
if (MapP->RtaUniqueNum == HostP->Mapping[entry].RtaUniqueNum) {
HostMapP = &HostP->Mapping[entry];
rio_dprintk(RIO_DEBUG_TABLE, "Found entry offset %d on host %s\n", entry, HostP->Name);
/*
** Check all four links of the unit are disconnected
*/
for (link = 0; link < LINKS_PER_UNIT; link++) {
if (HostMapP->Topology[link].Unit != ROUTE_DISCONNECT) {
rio_dprintk(RIO_DEBUG_TABLE, "Entry is in use and cannot be deleted!\n");
p->RIOError.Error = UNIT_IS_IN_USE;
rio_spin_unlock_irqrestore(&HostP->HostLock, lock_flags);
return -EBUSY;
}
}
/*
** Slot has been allocated, BUT not booted/routed/
** connected/selected or anything else-ed
*/
SysPort = HostMapP->SysPort;
if (SysPort != NO_PORT) {
for (port = SysPort; port < SysPort + PORTS_PER_RTA; port++) {
PortP = p->RIOPortp[port];
rio_dprintk(RIO_DEBUG_TABLE, "Unmap port\n");
rio_spin_lock_irqsave(&PortP->portSem, sem_flags);
PortP->Mapped = 0;
if (PortP->State & (RIO_MOPEN | RIO_LOPEN)) {
rio_dprintk(RIO_DEBUG_TABLE, "Gob on port\n");
PortP->TxBufferIn = PortP->TxBufferOut = 0;
/* What should I do
wakeup( &PortP->TxBufferIn );
wakeup( &PortP->TxBufferOut);
*/
PortP->InUse = NOT_INUSE;
/* What should I do
wakeup( &PortP->InUse );
signal(PortP->TtyP->t_pgrp,SIGKILL);
ttyflush(PortP->TtyP,(FREAD|FWRITE));
*/
PortP->State |= RIO_CLOSING | RIO_DELETED;
}
/*
** For the second slot of a 16 port RTA, the
** driver needs to reset the changes made to
** the phb to port mappings in RIORouteRup.
*/
if (PortP->SecondBlock) {
ushort dest_unit = HostMapP->ID;
ushort dest_port = port - SysPort;
u16 *TxPktP;
PKT *Pkt;
for (TxPktP = PortP->TxStart; TxPktP <= PortP->TxEnd; TxPktP++) {
/*
** *TxPktP is the pointer to the
** transmit packet on the host card.
** This needs to be translated into
** a 32 bit pointer so it can be
** accessed from the driver.
*/
Pkt = (PKT *) RIO_PTR(HostP->Caddr, readw(&*TxPktP));
rio_dprintk(RIO_DEBUG_TABLE, "Tx packet (%x) destination: Old %x:%x New %x:%x\n", *TxPktP, Pkt->dest_unit, Pkt->dest_port, dest_unit, dest_port);
writew(dest_unit, &Pkt->dest_unit);
writew(dest_port, &Pkt->dest_port);
}
rio_dprintk(RIO_DEBUG_TABLE, "Port %d phb destination: Old %x:%x New %x:%x\n", port, PortP->PhbP->destination & 0xff, (PortP->PhbP->destination >> 8) & 0xff, dest_unit, dest_port);
writew(dest_unit + (dest_port << 8), &PortP->PhbP->destination);
}
rio_spin_unlock_irqrestore(&PortP->portSem, sem_flags);
}
}
rio_dprintk(RIO_DEBUG_TABLE, "Entry nulled.\n");
memset(HostMapP, 0, sizeof(struct Map));
work_done++;
}
}
rio_spin_unlock_irqrestore(&HostP->HostLock, lock_flags);
}
/* XXXXX lock me up */
for (entry = 0; entry < TOTAL_MAP_ENTRIES; entry++) {
if (p->RIOSavedTable[entry].RtaUniqueNum == MapP->RtaUniqueNum) {
memset(&p->RIOSavedTable[entry], 0, sizeof(struct Map));
work_done++;
}
if (p->RIOConnectTable[entry].RtaUniqueNum == MapP->RtaUniqueNum) {
memset(&p->RIOConnectTable[entry], 0, sizeof(struct Map));
work_done++;
}
}
if (work_done)
return 0;
rio_dprintk(RIO_DEBUG_TABLE, "Couldn't find entry to be deleted\n");
p->RIOError.Error = COULDNT_FIND_ENTRY;
return -ENXIO;
}
int RIOAssignRta(struct rio_info *p, struct Map *MapP)
{
int host;
struct Map *HostMapP;
char *sptr;
int link;
rio_dprintk(RIO_DEBUG_TABLE, "Assign entry on host %x, rta %x, ID %d, Sysport %d\n", MapP->HostUniqueNum, MapP->RtaUniqueNum, MapP->ID, (int) MapP->SysPort);
if ((MapP->ID != (ushort) - 1) && ((int) MapP->ID < (int) 1 || (int) MapP->ID > MAX_RUP)) {
rio_dprintk(RIO_DEBUG_TABLE, "Bad ID in map entry!\n");
p->RIOError.Error = ID_NUMBER_OUT_OF_RANGE;
return -EINVAL;
}
if (MapP->RtaUniqueNum == 0) {
rio_dprintk(RIO_DEBUG_TABLE, "Rta Unique number zero!\n");
p->RIOError.Error = RTA_UNIQUE_NUMBER_ZERO;
return -EINVAL;
}
if ((MapP->SysPort != NO_PORT) && (MapP->SysPort % PORTS_PER_RTA)) {
rio_dprintk(RIO_DEBUG_TABLE, "Port %d not multiple of %d!\n", (int) MapP->SysPort, PORTS_PER_RTA);
p->RIOError.Error = TTY_NUMBER_OUT_OF_RANGE;
return -EINVAL;
}
if ((MapP->SysPort != NO_PORT) && (MapP->SysPort >= RIO_PORTS)) {
rio_dprintk(RIO_DEBUG_TABLE, "Port %d not valid!\n", (int) MapP->SysPort);
p->RIOError.Error = TTY_NUMBER_OUT_OF_RANGE;
return -EINVAL;
}
/*
** Copy the name across to the map entry.
*/
MapP->Name[MAX_NAME_LEN - 1] = '\0';
sptr = MapP->Name;
while (*sptr) {
if (*sptr < ' ' || *sptr > '~') {
rio_dprintk(RIO_DEBUG_TABLE, "Name entry contains non-printing characters!\n");
p->RIOError.Error = BAD_CHARACTER_IN_NAME;
return -EINVAL;
}
sptr++;
}
for (host = 0; host < p->RIONumHosts; host++) {
if (MapP->HostUniqueNum == p->RIOHosts[host].UniqueNum) {
if ((p->RIOHosts[host].Flags & RUN_STATE) != RC_RUNNING) {
p->RIOError.Error = HOST_NOT_RUNNING;
return -ENXIO;
}
/*
** Now we have a host we need to allocate an ID
** if the entry does not already have one.
*/
if (MapP->ID == (ushort) - 1) {
int nNewID;
rio_dprintk(RIO_DEBUG_TABLE, "Attempting to get a new ID for rta \"%s\"\n", MapP->Name);
/*
** The idea here is to allow RTA's to be assigned
** before they actually appear on the network.
** This allows the addition of RTA's without having
** to plug them in.
** What we do is:
** - Find a free ID and allocate it to the RTA.
** - If this map entry is the second half of a
** 16 port entry then find the other half and
** make sure the 2 cross reference each other.
*/
if (RIOFindFreeID(p, &p->RIOHosts[host], &nNewID, NULL) != 0) {
p->RIOError.Error = COULDNT_FIND_ENTRY;
return -EBUSY;
}
MapP->ID = (ushort) nNewID + 1;
rio_dprintk(RIO_DEBUG_TABLE, "Allocated ID %d for this new RTA.\n", MapP->ID);
HostMapP = &p->RIOHosts[host].Mapping[nNewID];
HostMapP->RtaUniqueNum = MapP->RtaUniqueNum;
HostMapP->HostUniqueNum = MapP->HostUniqueNum;
HostMapP->ID = MapP->ID;
for (link = 0; link < LINKS_PER_UNIT; link++) {
HostMapP->Topology[link].Unit = ROUTE_DISCONNECT;
HostMapP->Topology[link].Link = NO_LINK;
}
if (MapP->Flags & RTA16_SECOND_SLOT) {
int unit;
for (unit = 0; unit < MAX_RUP; unit++)
if (p->RIOHosts[host].Mapping[unit].RtaUniqueNum == MapP->RtaUniqueNum)
break;
if (unit == MAX_RUP) {
p->RIOError.Error = COULDNT_FIND_ENTRY;
return -EBUSY;
}
HostMapP->Flags |= RTA16_SECOND_SLOT;
HostMapP->ID2 = MapP->ID2 = p->RIOHosts[host].Mapping[unit].ID;
p->RIOHosts[host].Mapping[unit].ID2 = MapP->ID;
rio_dprintk(RIO_DEBUG_TABLE, "Cross referenced id %d to ID %d.\n", MapP->ID, p->RIOHosts[host].Mapping[unit].ID);
}
}
HostMapP = &p->RIOHosts[host].Mapping[MapP->ID - 1];
if (HostMapP->Flags & SLOT_IN_USE) {
rio_dprintk(RIO_DEBUG_TABLE, "Map table slot for ID %d is already in use.\n", MapP->ID);
p->RIOError.Error = ID_ALREADY_IN_USE;
return -EBUSY;
}
/*
** Assign the sys ports and the name, and mark the slot as
** being in use.
*/
HostMapP->SysPort = MapP->SysPort;
if ((MapP->Flags & RTA16_SECOND_SLOT) == 0)
CCOPY(MapP->Name, HostMapP->Name, MAX_NAME_LEN);
HostMapP->Flags = SLOT_IN_USE | RTA_BOOTED;
#ifdef NEED_TO_FIX
RIO_SV_BROADCAST(p->RIOHosts[host].svFlags[MapP->ID - 1]);
#endif
if (MapP->Flags & RTA16_SECOND_SLOT)
HostMapP->Flags |= RTA16_SECOND_SLOT;
RIOReMapPorts(p, &p->RIOHosts[host], HostMapP);
/*
** Adjust 2nd block of 8 phbs
*/
if (MapP->Flags & RTA16_SECOND_SLOT)
RIOFixPhbs(p, &p->RIOHosts[host], HostMapP->ID - 1);
if (HostMapP->SysPort != NO_PORT) {
if (HostMapP->SysPort < p->RIOFirstPortsBooted)
p->RIOFirstPortsBooted = HostMapP->SysPort;
if (HostMapP->SysPort > p->RIOLastPortsBooted)
p->RIOLastPortsBooted = HostMapP->SysPort;
}
if (MapP->Flags & RTA16_SECOND_SLOT)
rio_dprintk(RIO_DEBUG_TABLE, "Second map of RTA %s added to configuration\n", p->RIOHosts[host].Mapping[MapP->ID2 - 1].Name);
else
rio_dprintk(RIO_DEBUG_TABLE, "RTA %s added to configuration\n", MapP->Name);
return 0;
}
}
p->RIOError.Error = UNKNOWN_HOST_NUMBER;
rio_dprintk(RIO_DEBUG_TABLE, "Unknown host %x\n", MapP->HostUniqueNum);
return -ENXIO;
}
int RIOReMapPorts(struct rio_info *p, struct Host *HostP, struct Map *HostMapP)
{
struct Port *PortP;
uint SubEnt;
uint HostPort;
uint SysPort;
ushort RtaType;
unsigned long flags;
rio_dprintk(RIO_DEBUG_TABLE, "Mapping sysport %d to id %d\n", (int) HostMapP->SysPort, HostMapP->ID);
/*
** We need to tell the UnixRups which sysport the rup corresponds to
*/
HostP->UnixRups[HostMapP->ID - 1].BaseSysPort = HostMapP->SysPort;
if (HostMapP->SysPort == NO_PORT)
return (0);
RtaType = GetUnitType(HostMapP->RtaUniqueNum);
rio_dprintk(RIO_DEBUG_TABLE, "Mapping sysport %d-%d\n", (int) HostMapP->SysPort, (int) HostMapP->SysPort + PORTS_PER_RTA - 1);
/*
** now map each of its eight ports
*/
for (SubEnt = 0; SubEnt < PORTS_PER_RTA; SubEnt++) {
rio_dprintk(RIO_DEBUG_TABLE, "subent = %d, HostMapP->SysPort = %d\n", SubEnt, (int) HostMapP->SysPort);
SysPort = HostMapP->SysPort + SubEnt; /* portnumber within system */
/* portnumber on host */
HostPort = (HostMapP->ID - 1) * PORTS_PER_RTA + SubEnt;
rio_dprintk(RIO_DEBUG_TABLE, "c1 p = %p, p->rioPortp = %p\n", p, p->RIOPortp);
PortP = p->RIOPortp[SysPort];
rio_dprintk(RIO_DEBUG_TABLE, "Map port\n");
/*
** Point at all the real neat data structures
*/
rio_spin_lock_irqsave(&PortP->portSem, flags);
PortP->HostP = HostP;
PortP->Caddr = HostP->Caddr;
/*
** The PhbP cannot be filled in yet
** unless the host has been booted
*/
if ((HostP->Flags & RUN_STATE) == RC_RUNNING) {
struct PHB *PhbP = PortP->PhbP = &HostP->PhbP[HostPort];
PortP->TxAdd = (u16 *) RIO_PTR(HostP->Caddr, readw(&PhbP->tx_add));
PortP->TxStart = (u16 *) RIO_PTR(HostP->Caddr, readw(&PhbP->tx_start));
PortP->TxEnd = (u16 *) RIO_PTR(HostP->Caddr, readw(&PhbP->tx_end));
PortP->RxRemove = (u16 *) RIO_PTR(HostP->Caddr, readw(&PhbP->rx_remove));
PortP->RxStart = (u16 *) RIO_PTR(HostP->Caddr, readw(&PhbP->rx_start));
PortP->RxEnd = (u16 *) RIO_PTR(HostP->Caddr, readw(&PhbP->rx_end));
} else
PortP->PhbP = NULL;
/*
** port related flags
*/
PortP->HostPort = HostPort;
/*
** For each part of a 16 port RTA, RupNum is ID - 1.
*/
PortP->RupNum = HostMapP->ID - 1;
if (HostMapP->Flags & RTA16_SECOND_SLOT) {
PortP->ID2 = HostMapP->ID2 - 1;
PortP->SecondBlock = TRUE;
} else {
PortP->ID2 = 0;
PortP->SecondBlock = FALSE;
}
PortP->RtaUniqueNum = HostMapP->RtaUniqueNum;
/*
** If the port was already mapped then thats all we need to do.
*/
if (PortP->Mapped) {
rio_spin_unlock_irqrestore(&PortP->portSem, flags);
continue;
} else
HostMapP->Flags &= ~RTA_NEWBOOT;
PortP->State = 0;
PortP->Config = 0;
/*
** Check out the module type - if it is special (read only etc.)
** then we need to set flags in the PortP->Config.
** Note: For 16 port RTA, all ports are of the same type.
*/
if (RtaType == TYPE_RTA16) {
PortP->Config |= p->RIOModuleTypes[HostP->UnixRups[HostMapP->ID - 1].ModTypes].Flags[SubEnt % PORTS_PER_MODULE];
} else {
if (SubEnt < PORTS_PER_MODULE)
PortP->Config |= p->RIOModuleTypes[LONYBLE(HostP->UnixRups[HostMapP->ID - 1].ModTypes)].Flags[SubEnt % PORTS_PER_MODULE];
else
PortP->Config |= p->RIOModuleTypes[HINYBLE(HostP->UnixRups[HostMapP->ID - 1].ModTypes)].Flags[SubEnt % PORTS_PER_MODULE];
}
/*
** more port related flags
*/
PortP->PortState = 0;
PortP->ModemLines = 0;
PortP->ModemState = 0;
PortP->CookMode = COOK_WELL;
PortP->ParamSem = 0;
PortP->FlushCmdBodge = 0;
PortP->WflushFlag = 0;
PortP->MagicFlags = 0;
PortP->Lock = 0;
PortP->Store = 0;
PortP->FirstOpen = 1;
/*
** Buffers 'n things
*/
PortP->RxDataStart = 0;
PortP->Cor2Copy = 0;
PortP->Name = &HostMapP->Name[0];
PortP->statsGather = 0;
PortP->txchars = 0;
PortP->rxchars = 0;
PortP->opens = 0;
PortP->closes = 0;
PortP->ioctls = 0;
if (PortP->TxRingBuffer)
memset(PortP->TxRingBuffer, 0, p->RIOBufferSize);
else if (p->RIOBufferSize) {
PortP->TxRingBuffer = kmalloc(p->RIOBufferSize, GFP_KERNEL);
memset(PortP->TxRingBuffer, 0, p->RIOBufferSize);
}
PortP->TxBufferOut = 0;
PortP->TxBufferIn = 0;
PortP->Debug = 0;
/*
** LastRxTgl stores the state of the rx toggle bit for this
** port, to be compared with the state of the next pkt received.
** If the same, we have received the same rx pkt from the RTA
** twice. Initialise to a value not equal to PHB_RX_TGL or 0.
*/
PortP->LastRxTgl = ~(u8) PHB_RX_TGL;
/*
** and mark the port as usable
*/
PortP->Mapped = 1;
rio_spin_unlock_irqrestore(&PortP->portSem, flags);
}
if (HostMapP->SysPort < p->RIOFirstPortsMapped)
p->RIOFirstPortsMapped = HostMapP->SysPort;
if (HostMapP->SysPort > p->RIOLastPortsMapped)
p->RIOLastPortsMapped = HostMapP->SysPort;
return 0;
}
int RIOChangeName(struct rio_info *p, struct Map *MapP)
{
int host;
struct Map *HostMapP;
char *sptr;
rio_dprintk(RIO_DEBUG_TABLE, "Change name entry on host %x, rta %x, ID %d, Sysport %d\n", MapP->HostUniqueNum, MapP->RtaUniqueNum, MapP->ID, (int) MapP->SysPort);
if (MapP->ID > MAX_RUP) {
rio_dprintk(RIO_DEBUG_TABLE, "Bad ID in map entry!\n");
p->RIOError.Error = ID_NUMBER_OUT_OF_RANGE;
return -EINVAL;
}
MapP->Name[MAX_NAME_LEN - 1] = '\0';
sptr = MapP->Name;
while (*sptr) {
if (*sptr < ' ' || *sptr > '~') {
rio_dprintk(RIO_DEBUG_TABLE, "Name entry contains non-printing characters!\n");
p->RIOError.Error = BAD_CHARACTER_IN_NAME;
return -EINVAL;
}
sptr++;
}
for (host = 0; host < p->RIONumHosts; host++) {
if (MapP->HostUniqueNum == p->RIOHosts[host].UniqueNum) {
if ((p->RIOHosts[host].Flags & RUN_STATE) != RC_RUNNING) {
p->RIOError.Error = HOST_NOT_RUNNING;
return -ENXIO;
}
if (MapP->ID == 0) {
CCOPY(MapP->Name, p->RIOHosts[host].Name, MAX_NAME_LEN);
return 0;
}
HostMapP = &p->RIOHosts[host].Mapping[MapP->ID - 1];
if (HostMapP->RtaUniqueNum != MapP->RtaUniqueNum) {
p->RIOError.Error = RTA_NUMBER_WRONG;
return -ENXIO;
}
CCOPY(MapP->Name, HostMapP->Name, MAX_NAME_LEN);
return 0;
}
}
p->RIOError.Error = UNKNOWN_HOST_NUMBER;
rio_dprintk(RIO_DEBUG_TABLE, "Unknown host %x\n", MapP->HostUniqueNum);
return -ENXIO;
}
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