| 1 |
1275 |
phoenix |
/*
|
| 2 |
|
|
** -----------------------------------------------------------------------------
|
| 3 |
|
|
**
|
| 4 |
|
|
** Perle Specialix driver for Linux
|
| 5 |
|
|
** ported from the existing SCO driver source
|
| 6 |
|
|
**
|
| 7 |
|
|
*
|
| 8 |
|
|
* (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
|
| 9 |
|
|
*
|
| 10 |
|
|
* This program is free software; you can redistribute it and/or modify
|
| 11 |
|
|
* it under the terms of the GNU General Public License as published by
|
| 12 |
|
|
* the Free Software Foundation; either version 2 of the License, or
|
| 13 |
|
|
* (at your option) any later version.
|
| 14 |
|
|
*
|
| 15 |
|
|
* This program is distributed in the hope that it will be useful,
|
| 16 |
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
| 17 |
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
| 18 |
|
|
* GNU General Public License for more details.
|
| 19 |
|
|
*
|
| 20 |
|
|
* You should have received a copy of the GNU General Public License
|
| 21 |
|
|
* along with this program; if not, write to the Free Software
|
| 22 |
|
|
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
| 23 |
|
|
**
|
| 24 |
|
|
** Module : riocmd.c
|
| 25 |
|
|
** SID : 1.2
|
| 26 |
|
|
** Last Modified : 11/6/98 10:33:41
|
| 27 |
|
|
** Retrieved : 11/6/98 10:33:49
|
| 28 |
|
|
**
|
| 29 |
|
|
** ident @(#)riocmd.c 1.2
|
| 30 |
|
|
**
|
| 31 |
|
|
** -----------------------------------------------------------------------------
|
| 32 |
|
|
*/
|
| 33 |
|
|
#ifdef SCCS_LABELS
|
| 34 |
|
|
static char *_riocmd_c_sccs_ = "@(#)riocmd.c 1.2";
|
| 35 |
|
|
#endif
|
| 36 |
|
|
|
| 37 |
|
|
#define __NO_VERSION__
|
| 38 |
|
|
#include <linux/module.h>
|
| 39 |
|
|
#include <linux/slab.h>
|
| 40 |
|
|
#include <linux/errno.h>
|
| 41 |
|
|
#include <linux/tty.h>
|
| 42 |
|
|
#include <asm/io.h>
|
| 43 |
|
|
#include <asm/system.h>
|
| 44 |
|
|
#include <asm/string.h>
|
| 45 |
|
|
#include <asm/semaphore.h>
|
| 46 |
|
|
|
| 47 |
|
|
#include <linux/termios.h>
|
| 48 |
|
|
#include <linux/serial.h>
|
| 49 |
|
|
|
| 50 |
|
|
#include <linux/compatmac.h>
|
| 51 |
|
|
#include <linux/generic_serial.h>
|
| 52 |
|
|
|
| 53 |
|
|
#include "linux_compat.h"
|
| 54 |
|
|
#include "rio_linux.h"
|
| 55 |
|
|
#include "typdef.h"
|
| 56 |
|
|
#include "pkt.h"
|
| 57 |
|
|
#include "daemon.h"
|
| 58 |
|
|
#include "rio.h"
|
| 59 |
|
|
#include "riospace.h"
|
| 60 |
|
|
#include "top.h"
|
| 61 |
|
|
#include "cmdpkt.h"
|
| 62 |
|
|
#include "map.h"
|
| 63 |
|
|
#include "riotypes.h"
|
| 64 |
|
|
#include "rup.h"
|
| 65 |
|
|
#include "port.h"
|
| 66 |
|
|
#include "riodrvr.h"
|
| 67 |
|
|
#include "rioinfo.h"
|
| 68 |
|
|
#include "func.h"
|
| 69 |
|
|
#include "errors.h"
|
| 70 |
|
|
#include "pci.h"
|
| 71 |
|
|
|
| 72 |
|
|
#include "parmmap.h"
|
| 73 |
|
|
#include "unixrup.h"
|
| 74 |
|
|
#include "board.h"
|
| 75 |
|
|
#include "host.h"
|
| 76 |
|
|
#include "error.h"
|
| 77 |
|
|
#include "phb.h"
|
| 78 |
|
|
#include "link.h"
|
| 79 |
|
|
#include "cmdblk.h"
|
| 80 |
|
|
#include "route.h"
|
| 81 |
|
|
#include "control.h"
|
| 82 |
|
|
#include "cirrus.h"
|
| 83 |
|
|
|
| 84 |
|
|
|
| 85 |
|
|
static struct IdentifyRta IdRta;
|
| 86 |
|
|
static struct KillNeighbour KillUnit;
|
| 87 |
|
|
|
| 88 |
|
|
int
|
| 89 |
|
|
RIOFoadRta(HostP, MapP)
|
| 90 |
|
|
struct Host * HostP;
|
| 91 |
|
|
struct Map * MapP;
|
| 92 |
|
|
{
|
| 93 |
|
|
struct CmdBlk *CmdBlkP;
|
| 94 |
|
|
|
| 95 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "FOAD RTA\n");
|
| 96 |
|
|
|
| 97 |
|
|
CmdBlkP = RIOGetCmdBlk();
|
| 98 |
|
|
|
| 99 |
|
|
if ( !CmdBlkP ) {
|
| 100 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "FOAD RTA: GetCmdBlk failed\n");
|
| 101 |
|
|
return ENXIO;
|
| 102 |
|
|
}
|
| 103 |
|
|
|
| 104 |
|
|
CmdBlkP->Packet.dest_unit = MapP->ID;
|
| 105 |
|
|
CmdBlkP->Packet.dest_port = BOOT_RUP;
|
| 106 |
|
|
CmdBlkP->Packet.src_unit = 0;
|
| 107 |
|
|
CmdBlkP->Packet.src_port = BOOT_RUP;
|
| 108 |
|
|
CmdBlkP->Packet.len = 0x84;
|
| 109 |
|
|
CmdBlkP->Packet.data[0] = IFOAD;
|
| 110 |
|
|
CmdBlkP->Packet.data[1] = 0;
|
| 111 |
|
|
CmdBlkP->Packet.data[2] = IFOAD_MAGIC & 0xFF;
|
| 112 |
|
|
CmdBlkP->Packet.data[3] = (IFOAD_MAGIC >> 8) & 0xFF;
|
| 113 |
|
|
|
| 114 |
|
|
if ( RIOQueueCmdBlk( HostP, MapP->ID-1, CmdBlkP) == RIO_FAIL ) {
|
| 115 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "FOAD RTA: Failed to queue foad command\n");
|
| 116 |
|
|
return EIO;
|
| 117 |
|
|
}
|
| 118 |
|
|
return 0;
|
| 119 |
|
|
}
|
| 120 |
|
|
|
| 121 |
|
|
int
|
| 122 |
|
|
RIOZombieRta(HostP, MapP)
|
| 123 |
|
|
struct Host * HostP;
|
| 124 |
|
|
struct Map * MapP;
|
| 125 |
|
|
{
|
| 126 |
|
|
struct CmdBlk *CmdBlkP;
|
| 127 |
|
|
|
| 128 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "ZOMBIE RTA\n");
|
| 129 |
|
|
|
| 130 |
|
|
CmdBlkP = RIOGetCmdBlk();
|
| 131 |
|
|
|
| 132 |
|
|
if ( !CmdBlkP ) {
|
| 133 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "ZOMBIE RTA: GetCmdBlk failed\n");
|
| 134 |
|
|
return ENXIO;
|
| 135 |
|
|
}
|
| 136 |
|
|
|
| 137 |
|
|
CmdBlkP->Packet.dest_unit = MapP->ID;
|
| 138 |
|
|
CmdBlkP->Packet.dest_port = BOOT_RUP;
|
| 139 |
|
|
CmdBlkP->Packet.src_unit = 0;
|
| 140 |
|
|
CmdBlkP->Packet.src_port = BOOT_RUP;
|
| 141 |
|
|
CmdBlkP->Packet.len = 0x84;
|
| 142 |
|
|
CmdBlkP->Packet.data[0] = ZOMBIE;
|
| 143 |
|
|
CmdBlkP->Packet.data[1] = 0;
|
| 144 |
|
|
CmdBlkP->Packet.data[2] = ZOMBIE_MAGIC & 0xFF;
|
| 145 |
|
|
CmdBlkP->Packet.data[3] = (ZOMBIE_MAGIC >> 8) & 0xFF;
|
| 146 |
|
|
|
| 147 |
|
|
if ( RIOQueueCmdBlk( HostP, MapP->ID-1, CmdBlkP) == RIO_FAIL ) {
|
| 148 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "ZOMBIE RTA: Failed to queue zombie command\n");
|
| 149 |
|
|
return EIO;
|
| 150 |
|
|
}
|
| 151 |
|
|
return 0;
|
| 152 |
|
|
}
|
| 153 |
|
|
|
| 154 |
|
|
int
|
| 155 |
|
|
RIOCommandRta(p, RtaUnique, func)
|
| 156 |
|
|
struct rio_info * p;
|
| 157 |
|
|
uint RtaUnique;
|
| 158 |
|
|
int (* func)( struct Host *HostP, struct Map *MapP );
|
| 159 |
|
|
{
|
| 160 |
|
|
uint Host;
|
| 161 |
|
|
|
| 162 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "Command RTA 0x%x func 0x%x\n", RtaUnique, (int)func);
|
| 163 |
|
|
|
| 164 |
|
|
if ( !RtaUnique )
|
| 165 |
|
|
return(0);
|
| 166 |
|
|
|
| 167 |
|
|
for ( Host = 0; Host < p->RIONumHosts; Host++ ) {
|
| 168 |
|
|
uint Rta;
|
| 169 |
|
|
struct Host *HostP = &p->RIOHosts[Host];
|
| 170 |
|
|
|
| 171 |
|
|
for ( Rta = 0; Rta < RTAS_PER_HOST; Rta++ ) {
|
| 172 |
|
|
struct Map *MapP = &HostP->Mapping[Rta];
|
| 173 |
|
|
|
| 174 |
|
|
if ( MapP->RtaUniqueNum == RtaUnique ) {
|
| 175 |
|
|
uint Link;
|
| 176 |
|
|
|
| 177 |
|
|
/*
|
| 178 |
|
|
** now, lets just check we have a route to it...
|
| 179 |
|
|
** IF the routing stuff is working, then one of the
|
| 180 |
|
|
** topology entries for this unit will have a legit
|
| 181 |
|
|
** route *somewhere*. We care not where - if its got
|
| 182 |
|
|
** any connections, we can get to it.
|
| 183 |
|
|
*/
|
| 184 |
|
|
for ( Link = 0; Link < LINKS_PER_UNIT; Link++ ) {
|
| 185 |
|
|
if ( MapP->Topology[Link].Unit <= (uchar)MAX_RUP ) {
|
| 186 |
|
|
/*
|
| 187 |
|
|
** Its worth trying the operation...
|
| 188 |
|
|
*/
|
| 189 |
|
|
return (*func)( HostP, MapP );
|
| 190 |
|
|
}
|
| 191 |
|
|
}
|
| 192 |
|
|
}
|
| 193 |
|
|
}
|
| 194 |
|
|
}
|
| 195 |
|
|
return ENXIO;
|
| 196 |
|
|
}
|
| 197 |
|
|
|
| 198 |
|
|
|
| 199 |
|
|
int
|
| 200 |
|
|
RIOIdentifyRta(p, arg)
|
| 201 |
|
|
struct rio_info * p;
|
| 202 |
|
|
caddr_t arg;
|
| 203 |
|
|
{
|
| 204 |
|
|
uint Host;
|
| 205 |
|
|
|
| 206 |
|
|
if ( copyin( (int)arg, (caddr_t)&IdRta, sizeof(IdRta) ) == COPYFAIL ) {
|
| 207 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "RIO_IDENTIFY_RTA copy failed\n");
|
| 208 |
|
|
p->RIOError.Error = COPYIN_FAILED;
|
| 209 |
|
|
return EFAULT;
|
| 210 |
|
|
}
|
| 211 |
|
|
|
| 212 |
|
|
for ( Host = 0 ; Host < p->RIONumHosts; Host++ ) {
|
| 213 |
|
|
uint Rta;
|
| 214 |
|
|
struct Host *HostP = &p->RIOHosts[Host];
|
| 215 |
|
|
|
| 216 |
|
|
for ( Rta = 0; Rta < RTAS_PER_HOST; Rta++ ) {
|
| 217 |
|
|
struct Map *MapP = &HostP->Mapping[Rta];
|
| 218 |
|
|
|
| 219 |
|
|
if ( MapP->RtaUniqueNum == IdRta.RtaUnique ) {
|
| 220 |
|
|
uint Link;
|
| 221 |
|
|
/*
|
| 222 |
|
|
** now, lets just check we have a route to it...
|
| 223 |
|
|
** IF the routing stuff is working, then one of the
|
| 224 |
|
|
** topology entries for this unit will have a legit
|
| 225 |
|
|
** route *somewhere*. We care not where - if its got
|
| 226 |
|
|
** any connections, we can get to it.
|
| 227 |
|
|
*/
|
| 228 |
|
|
for ( Link = 0; Link < LINKS_PER_UNIT; Link++ ) {
|
| 229 |
|
|
if ( MapP->Topology[Link].Unit <= (uchar)MAX_RUP ) {
|
| 230 |
|
|
/*
|
| 231 |
|
|
** Its worth trying the operation...
|
| 232 |
|
|
*/
|
| 233 |
|
|
struct CmdBlk *CmdBlkP;
|
| 234 |
|
|
|
| 235 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "IDENTIFY RTA\n");
|
| 236 |
|
|
|
| 237 |
|
|
CmdBlkP = RIOGetCmdBlk();
|
| 238 |
|
|
|
| 239 |
|
|
if ( !CmdBlkP ) {
|
| 240 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "IDENTIFY RTA: GetCmdBlk failed\n");
|
| 241 |
|
|
return ENXIO;
|
| 242 |
|
|
}
|
| 243 |
|
|
|
| 244 |
|
|
CmdBlkP->Packet.dest_unit = MapP->ID;
|
| 245 |
|
|
CmdBlkP->Packet.dest_port = BOOT_RUP;
|
| 246 |
|
|
CmdBlkP->Packet.src_unit = 0;
|
| 247 |
|
|
CmdBlkP->Packet.src_port = BOOT_RUP;
|
| 248 |
|
|
CmdBlkP->Packet.len = 0x84;
|
| 249 |
|
|
CmdBlkP->Packet.data[0] = IDENTIFY;
|
| 250 |
|
|
CmdBlkP->Packet.data[1] = 0;
|
| 251 |
|
|
CmdBlkP->Packet.data[2] = IdRta.ID;
|
| 252 |
|
|
|
| 253 |
|
|
if ( RIOQueueCmdBlk( HostP, MapP->ID-1, CmdBlkP) == RIO_FAIL ) {
|
| 254 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "IDENTIFY RTA: Failed to queue command\n");
|
| 255 |
|
|
return EIO;
|
| 256 |
|
|
}
|
| 257 |
|
|
return 0;
|
| 258 |
|
|
}
|
| 259 |
|
|
}
|
| 260 |
|
|
}
|
| 261 |
|
|
}
|
| 262 |
|
|
}
|
| 263 |
|
|
return ENOENT;
|
| 264 |
|
|
}
|
| 265 |
|
|
|
| 266 |
|
|
|
| 267 |
|
|
int
|
| 268 |
|
|
RIOKillNeighbour(p, arg)
|
| 269 |
|
|
struct rio_info * p;
|
| 270 |
|
|
caddr_t arg;
|
| 271 |
|
|
{
|
| 272 |
|
|
uint Host;
|
| 273 |
|
|
uint ID;
|
| 274 |
|
|
struct Host *HostP;
|
| 275 |
|
|
struct CmdBlk *CmdBlkP;
|
| 276 |
|
|
|
| 277 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "KILL HOST NEIGHBOUR\n");
|
| 278 |
|
|
|
| 279 |
|
|
if ( copyin( (int)arg, (caddr_t)&KillUnit, sizeof(KillUnit) ) == COPYFAIL ) {
|
| 280 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "RIO_KILL_NEIGHBOUR copy failed\n");
|
| 281 |
|
|
p->RIOError.Error = COPYIN_FAILED;
|
| 282 |
|
|
return EFAULT;
|
| 283 |
|
|
}
|
| 284 |
|
|
|
| 285 |
|
|
if ( KillUnit.Link > 3 )
|
| 286 |
|
|
return ENXIO;
|
| 287 |
|
|
|
| 288 |
|
|
CmdBlkP = RIOGetCmdBlk();
|
| 289 |
|
|
|
| 290 |
|
|
if ( !CmdBlkP ) {
|
| 291 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "UFOAD: GetCmdBlk failed\n");
|
| 292 |
|
|
return ENXIO;
|
| 293 |
|
|
}
|
| 294 |
|
|
|
| 295 |
|
|
CmdBlkP->Packet.dest_unit = 0;
|
| 296 |
|
|
CmdBlkP->Packet.src_unit = 0;
|
| 297 |
|
|
CmdBlkP->Packet.dest_port = BOOT_RUP;
|
| 298 |
|
|
CmdBlkP->Packet.src_port = BOOT_RUP;
|
| 299 |
|
|
CmdBlkP->Packet.len = 0x84;
|
| 300 |
|
|
CmdBlkP->Packet.data[0] = UFOAD;
|
| 301 |
|
|
CmdBlkP->Packet.data[1] = KillUnit.Link;
|
| 302 |
|
|
CmdBlkP->Packet.data[2] = UFOAD_MAGIC & 0xFF;
|
| 303 |
|
|
CmdBlkP->Packet.data[3] = (UFOAD_MAGIC >> 8) & 0xFF;
|
| 304 |
|
|
|
| 305 |
|
|
for ( Host = 0; Host < p->RIONumHosts; Host++ ) {
|
| 306 |
|
|
ID = 0;
|
| 307 |
|
|
HostP = &p->RIOHosts[Host];
|
| 308 |
|
|
|
| 309 |
|
|
if ( HostP->UniqueNum == KillUnit.UniqueNum ) {
|
| 310 |
|
|
if ( RIOQueueCmdBlk( HostP, RTAS_PER_HOST+KillUnit.Link,
|
| 311 |
|
|
CmdBlkP) == RIO_FAIL ) {
|
| 312 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "UFOAD: Failed queue command\n");
|
| 313 |
|
|
return EIO;
|
| 314 |
|
|
}
|
| 315 |
|
|
return 0;
|
| 316 |
|
|
}
|
| 317 |
|
|
|
| 318 |
|
|
for ( ID=0; ID < RTAS_PER_HOST; ID++ ) {
|
| 319 |
|
|
if ( HostP->Mapping[ID].RtaUniqueNum == KillUnit.UniqueNum ) {
|
| 320 |
|
|
CmdBlkP->Packet.dest_unit = ID+1;
|
| 321 |
|
|
if ( RIOQueueCmdBlk( HostP, ID, CmdBlkP) == RIO_FAIL ) {
|
| 322 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "UFOAD: Failed queue command\n");
|
| 323 |
|
|
return EIO;
|
| 324 |
|
|
}
|
| 325 |
|
|
return 0;
|
| 326 |
|
|
}
|
| 327 |
|
|
}
|
| 328 |
|
|
}
|
| 329 |
|
|
RIOFreeCmdBlk( CmdBlkP );
|
| 330 |
|
|
return ENXIO;
|
| 331 |
|
|
}
|
| 332 |
|
|
|
| 333 |
|
|
int
|
| 334 |
|
|
RIOSuspendBootRta(HostP, ID, Link)
|
| 335 |
|
|
struct Host *HostP;
|
| 336 |
|
|
int ID;
|
| 337 |
|
|
int Link;
|
| 338 |
|
|
{
|
| 339 |
|
|
struct CmdBlk *CmdBlkP;
|
| 340 |
|
|
|
| 341 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "SUSPEND BOOT ON RTA ID %d, link %c\n", ID, 'A' + Link);
|
| 342 |
|
|
|
| 343 |
|
|
CmdBlkP = RIOGetCmdBlk();
|
| 344 |
|
|
|
| 345 |
|
|
if ( !CmdBlkP ) {
|
| 346 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "SUSPEND BOOT ON RTA: GetCmdBlk failed\n");
|
| 347 |
|
|
return ENXIO;
|
| 348 |
|
|
}
|
| 349 |
|
|
|
| 350 |
|
|
CmdBlkP->Packet.dest_unit = ID;
|
| 351 |
|
|
CmdBlkP->Packet.dest_port = BOOT_RUP;
|
| 352 |
|
|
CmdBlkP->Packet.src_unit = 0;
|
| 353 |
|
|
CmdBlkP->Packet.src_port = BOOT_RUP;
|
| 354 |
|
|
CmdBlkP->Packet.len = 0x84;
|
| 355 |
|
|
CmdBlkP->Packet.data[0] = IWAIT;
|
| 356 |
|
|
CmdBlkP->Packet.data[1] = Link;
|
| 357 |
|
|
CmdBlkP->Packet.data[2] = IWAIT_MAGIC & 0xFF;
|
| 358 |
|
|
CmdBlkP->Packet.data[3] = (IWAIT_MAGIC >> 8) & 0xFF;
|
| 359 |
|
|
|
| 360 |
|
|
if ( RIOQueueCmdBlk( HostP, ID - 1, CmdBlkP) == RIO_FAIL ) {
|
| 361 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "SUSPEND BOOT ON RTA: Failed to queue iwait command\n");
|
| 362 |
|
|
return EIO;
|
| 363 |
|
|
}
|
| 364 |
|
|
return 0;
|
| 365 |
|
|
}
|
| 366 |
|
|
|
| 367 |
|
|
int
|
| 368 |
|
|
RIOFoadWakeup(p)
|
| 369 |
|
|
struct rio_info * p;
|
| 370 |
|
|
{
|
| 371 |
|
|
int port;
|
| 372 |
|
|
register struct Port *PortP;
|
| 373 |
|
|
unsigned long flags;
|
| 374 |
|
|
|
| 375 |
|
|
for ( port=0; port<RIO_PORTS; port++) {
|
| 376 |
|
|
PortP = p->RIOPortp[port];
|
| 377 |
|
|
|
| 378 |
|
|
rio_spin_lock_irqsave(&PortP->portSem, flags);
|
| 379 |
|
|
PortP->Config = 0;
|
| 380 |
|
|
PortP->State = 0;
|
| 381 |
|
|
PortP->InUse = NOT_INUSE;
|
| 382 |
|
|
PortP->PortState = 0;
|
| 383 |
|
|
PortP->FlushCmdBodge = 0;
|
| 384 |
|
|
PortP->ModemLines = 0;
|
| 385 |
|
|
PortP->ModemState = 0;
|
| 386 |
|
|
PortP->CookMode = 0;
|
| 387 |
|
|
PortP->ParamSem = 0;
|
| 388 |
|
|
PortP->Mapped = 0;
|
| 389 |
|
|
PortP->WflushFlag = 0;
|
| 390 |
|
|
PortP->MagicFlags = 0;
|
| 391 |
|
|
PortP->RxDataStart = 0;
|
| 392 |
|
|
PortP->TxBufferIn = 0;
|
| 393 |
|
|
PortP->TxBufferOut = 0;
|
| 394 |
|
|
rio_spin_unlock_irqrestore(&PortP->portSem, flags);
|
| 395 |
|
|
}
|
| 396 |
|
|
return(0);
|
| 397 |
|
|
}
|
| 398 |
|
|
|
| 399 |
|
|
/*
|
| 400 |
|
|
** Incoming command on the COMMAND_RUP to be processed.
|
| 401 |
|
|
*/
|
| 402 |
|
|
int
|
| 403 |
|
|
RIOCommandRup(p, Rup, HostP, PacketP)
|
| 404 |
|
|
struct rio_info * p;
|
| 405 |
|
|
uint Rup;
|
| 406 |
|
|
struct Host *HostP;
|
| 407 |
|
|
PKT *PacketP;
|
| 408 |
|
|
{
|
| 409 |
|
|
struct PktCmd *PktCmdP = (struct PktCmd *)PacketP->data;
|
| 410 |
|
|
struct Port *PortP;
|
| 411 |
|
|
struct UnixRup *UnixRupP;
|
| 412 |
|
|
ushort SysPort;
|
| 413 |
|
|
ushort ReportedModemStatus;
|
| 414 |
|
|
ushort rup;
|
| 415 |
|
|
ushort subCommand;
|
| 416 |
|
|
unsigned long flags;
|
| 417 |
|
|
|
| 418 |
|
|
func_enter ();
|
| 419 |
|
|
|
| 420 |
|
|
#ifdef CHECK
|
| 421 |
|
|
CheckHost( Host );
|
| 422 |
|
|
CheckHostP( HostP );
|
| 423 |
|
|
CheckPacketP( PacketP );
|
| 424 |
|
|
#endif
|
| 425 |
|
|
|
| 426 |
|
|
/*
|
| 427 |
|
|
** 16 port RTA note:
|
| 428 |
|
|
** Command rup packets coming from the RTA will have pkt->data[1] (which
|
| 429 |
|
|
** translates to PktCmdP->PhbNum) set to the host port number for the
|
| 430 |
|
|
** particular unit. To access the correct BaseSysPort for a 16 port RTA,
|
| 431 |
|
|
** we can use PhbNum to get the rup number for the appropriate 8 port
|
| 432 |
|
|
** block (for the first block, this should be equal to 'Rup').
|
| 433 |
|
|
*/
|
| 434 |
|
|
rup = RBYTE(PktCmdP->PhbNum) / (ushort)PORTS_PER_RTA;
|
| 435 |
|
|
UnixRupP = &HostP->UnixRups[rup];
|
| 436 |
|
|
SysPort = UnixRupP->BaseSysPort +
|
| 437 |
|
|
(RBYTE(PktCmdP->PhbNum) % (ushort)PORTS_PER_RTA);
|
| 438 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "Command on rup %d, port %d\n", rup, SysPort);
|
| 439 |
|
|
|
| 440 |
|
|
#ifdef CHECK
|
| 441 |
|
|
CheckRup( rup );
|
| 442 |
|
|
CheckUnixRupP( UnixRupP );
|
| 443 |
|
|
#endif
|
| 444 |
|
|
if ( UnixRupP->BaseSysPort == NO_PORT ) {
|
| 445 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "OBSCURE ERROR!\n");
|
| 446 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "Diagnostics follow. Please WRITE THESE DOWN and report them to Specialix Technical Support\n");
|
| 447 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "CONTROL information: Host number %d, name ``%s''\n",
|
| 448 |
|
|
HostP-p->RIOHosts, HostP->Name );
|
| 449 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "CONTROL information: Rup number 0x%x\n", rup);
|
| 450 |
|
|
|
| 451 |
|
|
if ( Rup >= (ushort)MAX_RUP ) {
|
| 452 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "CONTROL information: This is the RUP for RTA ``%s''\n",
|
| 453 |
|
|
HostP->Mapping[Rup].Name);
|
| 454 |
|
|
} else
|
| 455 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "CONTROL information: This is the RUP for link ``%c'' of host ``%s''\n",
|
| 456 |
|
|
('A' + Rup - MAX_RUP), HostP->Name);
|
| 457 |
|
|
|
| 458 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "PACKET information: Destination 0x%x:0x%x\n",
|
| 459 |
|
|
PacketP->dest_unit, PacketP->dest_port );
|
| 460 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "PACKET information: Source 0x%x:0x%x\n",
|
| 461 |
|
|
PacketP->src_unit, PacketP->src_port );
|
| 462 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "PACKET information: Length 0x%x (%d)\n", PacketP->len,PacketP->len );
|
| 463 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "PACKET information: Control 0x%x (%d)\n", PacketP->control, PacketP->control);
|
| 464 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "PACKET information: Check 0x%x (%d)\n", PacketP->csum, PacketP->csum );
|
| 465 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "COMMAND information: Host Port Number 0x%x, "
|
| 466 |
|
|
"Command Code 0x%x\n", PktCmdP->PhbNum, PktCmdP->Command );
|
| 467 |
|
|
return TRUE;
|
| 468 |
|
|
}
|
| 469 |
|
|
|
| 470 |
|
|
#ifdef CHECK
|
| 471 |
|
|
CheckSysPort( SysPort );
|
| 472 |
|
|
#endif
|
| 473 |
|
|
PortP = p->RIOPortp[ SysPort ];
|
| 474 |
|
|
rio_spin_lock_irqsave(&PortP->portSem, flags);
|
| 475 |
|
|
switch( RBYTE(PktCmdP->Command) ) {
|
| 476 |
|
|
case BREAK_RECEIVED:
|
| 477 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "Received a break!\n");
|
| 478 |
|
|
/* If the current line disc. is not multi-threading and
|
| 479 |
|
|
the current processor is not the default, reset rup_intr
|
| 480 |
|
|
and return FALSE to ensure that the command packet is
|
| 481 |
|
|
not freed. */
|
| 482 |
|
|
/* Call tmgr HANGUP HERE */
|
| 483 |
|
|
/* Fix this later when every thing works !!!! RAMRAJ */
|
| 484 |
|
|
gs_got_break (&PortP->gs);
|
| 485 |
|
|
break;
|
| 486 |
|
|
|
| 487 |
|
|
case COMPLETE:
|
| 488 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "Command complete on phb %d host %d\n",
|
| 489 |
|
|
RBYTE(PktCmdP->PhbNum), HostP-p->RIOHosts);
|
| 490 |
|
|
subCommand = 1;
|
| 491 |
|
|
switch (RBYTE(PktCmdP->SubCommand)) {
|
| 492 |
|
|
case MEMDUMP :
|
| 493 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "Memory dump cmd (0x%x) from addr 0x%x\n",
|
| 494 |
|
|
RBYTE(PktCmdP->SubCommand), RWORD(PktCmdP->SubAddr));
|
| 495 |
|
|
break;
|
| 496 |
|
|
case READ_REGISTER :
|
| 497 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "Read register (0x%x)\n", RWORD(PktCmdP->SubAddr));
|
| 498 |
|
|
p->CdRegister = (RBYTE(PktCmdP->ModemStatus) & MSVR1_HOST);
|
| 499 |
|
|
break;
|
| 500 |
|
|
default :
|
| 501 |
|
|
subCommand = 0;
|
| 502 |
|
|
break;
|
| 503 |
|
|
}
|
| 504 |
|
|
if (subCommand)
|
| 505 |
|
|
break;
|
| 506 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "New status is 0x%x was 0x%x\n",
|
| 507 |
|
|
RBYTE(PktCmdP->PortStatus),PortP->PortState);
|
| 508 |
|
|
if (PortP->PortState != RBYTE(PktCmdP->PortStatus)) {
|
| 509 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "Mark status & wakeup\n");
|
| 510 |
|
|
PortP->PortState = RBYTE(PktCmdP->PortStatus);
|
| 511 |
|
|
/* What should we do here ...
|
| 512 |
|
|
wakeup( &PortP->PortState );
|
| 513 |
|
|
*/
|
| 514 |
|
|
} else
|
| 515 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "No change\n");
|
| 516 |
|
|
|
| 517 |
|
|
/* FALLTHROUGH */
|
| 518 |
|
|
case MODEM_STATUS:
|
| 519 |
|
|
/*
|
| 520 |
|
|
** Knock out the tbusy and tstop bits, as these are not relevant
|
| 521 |
|
|
** to the check for modem status change (they're just there because
|
| 522 |
|
|
** it's a convenient place to put them!).
|
| 523 |
|
|
*/
|
| 524 |
|
|
ReportedModemStatus = RBYTE(PktCmdP->ModemStatus);
|
| 525 |
|
|
if ((PortP->ModemState & MSVR1_HOST) ==
|
| 526 |
|
|
(ReportedModemStatus & MSVR1_HOST)) {
|
| 527 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "Modem status unchanged 0x%x\n", PortP->ModemState);
|
| 528 |
|
|
/*
|
| 529 |
|
|
** Update ModemState just in case tbusy or tstop states have
|
| 530 |
|
|
** changed.
|
| 531 |
|
|
*/
|
| 532 |
|
|
PortP->ModemState = ReportedModemStatus;
|
| 533 |
|
|
}
|
| 534 |
|
|
else {
|
| 535 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "Modem status change from 0x%x to 0x%x\n",
|
| 536 |
|
|
PortP->ModemState, ReportedModemStatus);
|
| 537 |
|
|
PortP->ModemState = ReportedModemStatus;
|
| 538 |
|
|
#ifdef MODEM_SUPPORT
|
| 539 |
|
|
if ( PortP->Mapped ) {
|
| 540 |
|
|
/***********************************************************\
|
| 541 |
|
|
*************************************************************
|
| 542 |
|
|
*** ***
|
| 543 |
|
|
*** M O D E M S T A T E C H A N G E ***
|
| 544 |
|
|
*** ***
|
| 545 |
|
|
*************************************************************
|
| 546 |
|
|
\***********************************************************/
|
| 547 |
|
|
/*
|
| 548 |
|
|
** If the device is a modem, then check the modem
|
| 549 |
|
|
** carrier.
|
| 550 |
|
|
*/
|
| 551 |
|
|
if (PortP->gs.tty == NULL)
|
| 552 |
|
|
break;
|
| 553 |
|
|
if (PortP->gs.tty->termios == NULL)
|
| 554 |
|
|
break;
|
| 555 |
|
|
|
| 556 |
|
|
if (!(PortP->gs.tty->termios->c_cflag & CLOCAL) &&
|
| 557 |
|
|
((PortP->State & (RIO_MOPEN|RIO_WOPEN)))) {
|
| 558 |
|
|
|
| 559 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "Is there a Carrier?\n");
|
| 560 |
|
|
/*
|
| 561 |
|
|
** Is there a carrier?
|
| 562 |
|
|
*/
|
| 563 |
|
|
if ( PortP->ModemState & MSVR1_CD ) {
|
| 564 |
|
|
/*
|
| 565 |
|
|
** Has carrier just appeared?
|
| 566 |
|
|
*/
|
| 567 |
|
|
if (!(PortP->State & RIO_CARR_ON)) {
|
| 568 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "Carrier just came up.\n");
|
| 569 |
|
|
PortP->State |= RIO_CARR_ON;
|
| 570 |
|
|
/*
|
| 571 |
|
|
** wakeup anyone in WOPEN
|
| 572 |
|
|
*/
|
| 573 |
|
|
if (PortP->State & (PORT_ISOPEN | RIO_WOPEN) )
|
| 574 |
|
|
wake_up_interruptible (&PortP->gs.open_wait);
|
| 575 |
|
|
#ifdef STATS
|
| 576 |
|
|
PortP->Stat.ModemOnCnt++;
|
| 577 |
|
|
#endif
|
| 578 |
|
|
}
|
| 579 |
|
|
} else {
|
| 580 |
|
|
/*
|
| 581 |
|
|
** Has carrier just dropped?
|
| 582 |
|
|
*/
|
| 583 |
|
|
if (PortP->State & RIO_CARR_ON) {
|
| 584 |
|
|
if (PortP->State & (PORT_ISOPEN|RIO_WOPEN|RIO_MOPEN))
|
| 585 |
|
|
tty_hangup (PortP->gs.tty);
|
| 586 |
|
|
PortP->State &= ~RIO_CARR_ON;
|
| 587 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "Carrirer just went down\n");
|
| 588 |
|
|
#ifdef STATS
|
| 589 |
|
|
PortP->Stat.ModemOffCnt++;
|
| 590 |
|
|
#endif
|
| 591 |
|
|
}
|
| 592 |
|
|
}
|
| 593 |
|
|
}
|
| 594 |
|
|
}
|
| 595 |
|
|
#endif
|
| 596 |
|
|
}
|
| 597 |
|
|
break;
|
| 598 |
|
|
|
| 599 |
|
|
default:
|
| 600 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "Unknown command %d on CMD_RUP of host %d\n",
|
| 601 |
|
|
RBYTE(PktCmdP->Command),HostP-p->RIOHosts);
|
| 602 |
|
|
break;
|
| 603 |
|
|
}
|
| 604 |
|
|
rio_spin_unlock_irqrestore(&PortP->portSem, flags);
|
| 605 |
|
|
|
| 606 |
|
|
func_exit ();
|
| 607 |
|
|
|
| 608 |
|
|
return TRUE;
|
| 609 |
|
|
}
|
| 610 |
|
|
/*
|
| 611 |
|
|
** The command mechanism:
|
| 612 |
|
|
** Each rup has a chain of commands associated with it.
|
| 613 |
|
|
** This chain is maintained by routines in this file.
|
| 614 |
|
|
** Periodically we are called and we run a quick check of all the
|
| 615 |
|
|
** active chains to determine if there is a command to be executed,
|
| 616 |
|
|
** and if the rup is ready to accept it.
|
| 617 |
|
|
**
|
| 618 |
|
|
*/
|
| 619 |
|
|
|
| 620 |
|
|
/*
|
| 621 |
|
|
** Allocate an empty command block.
|
| 622 |
|
|
*/
|
| 623 |
|
|
struct CmdBlk *
|
| 624 |
|
|
RIOGetCmdBlk()
|
| 625 |
|
|
{
|
| 626 |
|
|
struct CmdBlk *CmdBlkP;
|
| 627 |
|
|
|
| 628 |
|
|
CmdBlkP = (struct CmdBlk *)sysbrk(sizeof(struct CmdBlk));
|
| 629 |
|
|
if (CmdBlkP)
|
| 630 |
|
|
bzero(CmdBlkP, sizeof(struct CmdBlk));
|
| 631 |
|
|
|
| 632 |
|
|
return CmdBlkP;
|
| 633 |
|
|
}
|
| 634 |
|
|
|
| 635 |
|
|
/*
|
| 636 |
|
|
** Return a block to the head of the free list.
|
| 637 |
|
|
*/
|
| 638 |
|
|
void
|
| 639 |
|
|
RIOFreeCmdBlk(CmdBlkP)
|
| 640 |
|
|
struct CmdBlk *CmdBlkP;
|
| 641 |
|
|
{
|
| 642 |
|
|
sysfree((void *)CmdBlkP, sizeof(struct CmdBlk));
|
| 643 |
|
|
}
|
| 644 |
|
|
|
| 645 |
|
|
/*
|
| 646 |
|
|
** attach a command block to the list of commands to be performed for
|
| 647 |
|
|
** a given rup.
|
| 648 |
|
|
*/
|
| 649 |
|
|
int
|
| 650 |
|
|
RIOQueueCmdBlk(HostP, Rup, CmdBlkP)
|
| 651 |
|
|
struct Host *HostP;
|
| 652 |
|
|
uint Rup;
|
| 653 |
|
|
struct CmdBlk *CmdBlkP;
|
| 654 |
|
|
{
|
| 655 |
|
|
struct CmdBlk **Base;
|
| 656 |
|
|
struct UnixRup *UnixRupP;
|
| 657 |
|
|
unsigned long flags;
|
| 658 |
|
|
|
| 659 |
|
|
#ifdef CHECK
|
| 660 |
|
|
CheckHostP( HostP );
|
| 661 |
|
|
CheckRup( Rup );
|
| 662 |
|
|
CheckCmdBlkP( CmdBlkP );
|
| 663 |
|
|
#endif
|
| 664 |
|
|
if ( Rup >= (ushort)(MAX_RUP+LINKS_PER_UNIT) ) {
|
| 665 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "Illegal rup number %d in RIOQueueCmdBlk\n",Rup);
|
| 666 |
|
|
RIOFreeCmdBlk( CmdBlkP );
|
| 667 |
|
|
return RIO_FAIL;
|
| 668 |
|
|
}
|
| 669 |
|
|
|
| 670 |
|
|
UnixRupP = &HostP->UnixRups[Rup];
|
| 671 |
|
|
|
| 672 |
|
|
rio_spin_lock_irqsave(&UnixRupP->RupLock, flags);
|
| 673 |
|
|
|
| 674 |
|
|
/*
|
| 675 |
|
|
** If the RUP is currently inactive, then put the request
|
| 676 |
|
|
** straight on the RUP....
|
| 677 |
|
|
*/
|
| 678 |
|
|
if ( (UnixRupP->CmdsWaitingP == NULL) && (UnixRupP->CmdPendingP == NULL) &&
|
| 679 |
|
|
(RWORD(UnixRupP->RupP->txcontrol) == TX_RUP_INACTIVE ) &&
|
| 680 |
|
|
(CmdBlkP->PreFuncP ? (*CmdBlkP->PreFuncP)(CmdBlkP->PreArg,CmdBlkP)
|
| 681 |
|
|
:TRUE)) {
|
| 682 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "RUP inactive-placing command straight on. Cmd byte is 0x%x\n",
|
| 683 |
|
|
CmdBlkP->Packet.data[0]);
|
| 684 |
|
|
|
| 685 |
|
|
|
| 686 |
|
|
/*
|
| 687 |
|
|
** Whammy! blat that pack!
|
| 688 |
|
|
*/
|
| 689 |
|
|
HostP->Copy( (caddr_t)&CmdBlkP->Packet,
|
| 690 |
|
|
RIO_PTR(HostP->Caddr, UnixRupP->RupP->txpkt ), sizeof(PKT) );
|
| 691 |
|
|
|
| 692 |
|
|
/*
|
| 693 |
|
|
** place command packet on the pending position.
|
| 694 |
|
|
*/
|
| 695 |
|
|
UnixRupP->CmdPendingP = CmdBlkP;
|
| 696 |
|
|
|
| 697 |
|
|
/*
|
| 698 |
|
|
** set the command register
|
| 699 |
|
|
*/
|
| 700 |
|
|
WWORD(UnixRupP->RupP->txcontrol , TX_PACKET_READY);
|
| 701 |
|
|
|
| 702 |
|
|
rio_spin_unlock_irqrestore(&UnixRupP->RupLock, flags);
|
| 703 |
|
|
|
| 704 |
|
|
return RIO_SUCCESS;
|
| 705 |
|
|
}
|
| 706 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "RUP active - en-queing\n");
|
| 707 |
|
|
|
| 708 |
|
|
if ( UnixRupP->CmdsWaitingP != NULL)
|
| 709 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "Rup active - command waiting\n");
|
| 710 |
|
|
if ( UnixRupP->CmdPendingP != NULL )
|
| 711 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "Rup active - command pending\n");
|
| 712 |
|
|
if ( RWORD(UnixRupP->RupP->txcontrol) != TX_RUP_INACTIVE )
|
| 713 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "Rup active - command rup not ready\n");
|
| 714 |
|
|
|
| 715 |
|
|
Base = &UnixRupP->CmdsWaitingP;
|
| 716 |
|
|
|
| 717 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "First try to queue cmdblk 0x%x at 0x%x\n", (int)CmdBlkP,(int)Base);
|
| 718 |
|
|
|
| 719 |
|
|
while ( *Base ) {
|
| 720 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "Command cmdblk 0x%x here\n", (int)(*Base));
|
| 721 |
|
|
Base = &((*Base)->NextP);
|
| 722 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "Now try to queue cmd cmdblk 0x%x at 0x%x\n",
|
| 723 |
|
|
(int)CmdBlkP,(int)Base);
|
| 724 |
|
|
}
|
| 725 |
|
|
|
| 726 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "Will queue cmdblk 0x%x at 0x%x\n",(int)CmdBlkP,(int)Base);
|
| 727 |
|
|
|
| 728 |
|
|
*Base = CmdBlkP;
|
| 729 |
|
|
|
| 730 |
|
|
CmdBlkP->NextP = NULL;
|
| 731 |
|
|
|
| 732 |
|
|
rio_spin_unlock_irqrestore(&UnixRupP->RupLock, flags);
|
| 733 |
|
|
|
| 734 |
|
|
return RIO_SUCCESS;
|
| 735 |
|
|
}
|
| 736 |
|
|
|
| 737 |
|
|
/*
|
| 738 |
|
|
** Here we go - if there is an empty rup, fill it!
|
| 739 |
|
|
** must be called at splrio() or higher.
|
| 740 |
|
|
*/
|
| 741 |
|
|
void
|
| 742 |
|
|
RIOPollHostCommands(p, HostP)
|
| 743 |
|
|
struct rio_info * p;
|
| 744 |
|
|
struct Host * HostP;
|
| 745 |
|
|
{
|
| 746 |
|
|
register struct CmdBlk *CmdBlkP;
|
| 747 |
|
|
register struct UnixRup *UnixRupP;
|
| 748 |
|
|
struct PKT *PacketP;
|
| 749 |
|
|
ushort Rup;
|
| 750 |
|
|
unsigned long flags;
|
| 751 |
|
|
|
| 752 |
|
|
|
| 753 |
|
|
Rup = MAX_RUP+LINKS_PER_UNIT;
|
| 754 |
|
|
|
| 755 |
|
|
do { /* do this loop for each RUP */
|
| 756 |
|
|
/*
|
| 757 |
|
|
** locate the rup we are processing & lock it
|
| 758 |
|
|
*/
|
| 759 |
|
|
UnixRupP = &HostP->UnixRups[--Rup];
|
| 760 |
|
|
|
| 761 |
|
|
spin_lock_irqsave(&UnixRupP->RupLock, flags);
|
| 762 |
|
|
|
| 763 |
|
|
/*
|
| 764 |
|
|
** First check for incoming commands:
|
| 765 |
|
|
*/
|
| 766 |
|
|
if ( RWORD(UnixRupP->RupP->rxcontrol) != RX_RUP_INACTIVE ) {
|
| 767 |
|
|
int FreeMe;
|
| 768 |
|
|
|
| 769 |
|
|
PacketP =(PKT *)RIO_PTR(HostP->Caddr,RWORD(UnixRupP->RupP->rxpkt));
|
| 770 |
|
|
|
| 771 |
|
|
ShowPacket( DBG_CMD, PacketP );
|
| 772 |
|
|
|
| 773 |
|
|
switch ( RBYTE(PacketP->dest_port) ) {
|
| 774 |
|
|
case BOOT_RUP:
|
| 775 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "Incoming Boot %s packet '%x'\n",
|
| 776 |
|
|
RBYTE(PacketP->len) & 0x80 ? "Command":"Data",
|
| 777 |
|
|
RBYTE(PacketP->data[0]));
|
| 778 |
|
|
rio_spin_unlock_irqrestore(&UnixRupP->RupLock, flags);
|
| 779 |
|
|
FreeMe= RIOBootRup(p, Rup,HostP,PacketP);
|
| 780 |
|
|
rio_spin_lock_irqsave(&UnixRupP->RupLock, flags);
|
| 781 |
|
|
break;
|
| 782 |
|
|
|
| 783 |
|
|
case COMMAND_RUP:
|
| 784 |
|
|
/*
|
| 785 |
|
|
** Free the RUP lock as loss of carrier causes a
|
| 786 |
|
|
** ttyflush which will (eventually) call another
|
| 787 |
|
|
** routine that uses the RUP lock.
|
| 788 |
|
|
*/
|
| 789 |
|
|
rio_spin_unlock_irqrestore(&UnixRupP->RupLock, flags);
|
| 790 |
|
|
FreeMe= RIOCommandRup(p, Rup,HostP,PacketP);
|
| 791 |
|
|
if (PacketP->data[5] == MEMDUMP) {
|
| 792 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "Memdump from 0x%x complete\n",
|
| 793 |
|
|
*(ushort *) &(PacketP->data[6]));
|
| 794 |
|
|
HostP->Copy( (caddr_t)&(PacketP->data[8]),
|
| 795 |
|
|
(caddr_t)p->RIOMemDump, 32 );
|
| 796 |
|
|
}
|
| 797 |
|
|
rio_spin_lock_irqsave(&UnixRupP->RupLock, flags);
|
| 798 |
|
|
break;
|
| 799 |
|
|
|
| 800 |
|
|
case ROUTE_RUP:
|
| 801 |
|
|
rio_spin_unlock_irqrestore( &UnixRupP->RupLock, flags);
|
| 802 |
|
|
FreeMe = RIORouteRup(p, Rup, HostP, PacketP );
|
| 803 |
|
|
rio_spin_lock_irqsave( &UnixRupP->RupLock, flags );
|
| 804 |
|
|
break;
|
| 805 |
|
|
|
| 806 |
|
|
default:
|
| 807 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "Unknown RUP %d\n", RBYTE(PacketP->dest_port));
|
| 808 |
|
|
FreeMe = 1;
|
| 809 |
|
|
break;
|
| 810 |
|
|
}
|
| 811 |
|
|
|
| 812 |
|
|
if ( FreeMe ) {
|
| 813 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "Free processed incoming command packet\n");
|
| 814 |
|
|
put_free_end(HostP,PacketP);
|
| 815 |
|
|
|
| 816 |
|
|
WWORD(UnixRupP->RupP->rxcontrol , RX_RUP_INACTIVE);
|
| 817 |
|
|
|
| 818 |
|
|
if ( RWORD(UnixRupP->RupP->handshake)==PHB_HANDSHAKE_SET ) {
|
| 819 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "Handshake rup %d\n",Rup);
|
| 820 |
|
|
WWORD(UnixRupP->RupP->handshake,
|
| 821 |
|
|
PHB_HANDSHAKE_SET|PHB_HANDSHAKE_RESET);
|
| 822 |
|
|
}
|
| 823 |
|
|
}
|
| 824 |
|
|
}
|
| 825 |
|
|
|
| 826 |
|
|
/*
|
| 827 |
|
|
** IF a command was running on the port,
|
| 828 |
|
|
** and it has completed, then tidy it up.
|
| 829 |
|
|
*/
|
| 830 |
|
|
if ( (CmdBlkP = UnixRupP->CmdPendingP) && /* ASSIGN! */
|
| 831 |
|
|
(RWORD(UnixRupP->RupP->txcontrol) == TX_RUP_INACTIVE)) {
|
| 832 |
|
|
/*
|
| 833 |
|
|
** we are idle.
|
| 834 |
|
|
** there is a command in pending.
|
| 835 |
|
|
** Therefore, this command has finished.
|
| 836 |
|
|
** So, wakeup whoever is waiting for it (and tell them
|
| 837 |
|
|
** what happened).
|
| 838 |
|
|
*/
|
| 839 |
|
|
if ( CmdBlkP->Packet.dest_port == BOOT_RUP )
|
| 840 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "Free Boot %s Command Block '%x'\n",
|
| 841 |
|
|
CmdBlkP->Packet.len & 0x80 ? "Command":"Data",
|
| 842 |
|
|
CmdBlkP->Packet.data[0]);
|
| 843 |
|
|
|
| 844 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "Command 0x%x completed\n",(int)CmdBlkP);
|
| 845 |
|
|
|
| 846 |
|
|
/*
|
| 847 |
|
|
** Clear the Rup lock to prevent mutual exclusion.
|
| 848 |
|
|
*/
|
| 849 |
|
|
if ( CmdBlkP->PostFuncP ) {
|
| 850 |
|
|
rio_spin_unlock_irqrestore(&UnixRupP->RupLock, flags);
|
| 851 |
|
|
(*CmdBlkP->PostFuncP) (CmdBlkP->PostArg,CmdBlkP);
|
| 852 |
|
|
rio_spin_lock_irqsave(&UnixRupP->RupLock, flags);
|
| 853 |
|
|
}
|
| 854 |
|
|
|
| 855 |
|
|
/*
|
| 856 |
|
|
** ....clear the pending flag....
|
| 857 |
|
|
*/
|
| 858 |
|
|
UnixRupP->CmdPendingP = NULL;
|
| 859 |
|
|
|
| 860 |
|
|
/*
|
| 861 |
|
|
** ....and return the command block to the freelist.
|
| 862 |
|
|
*/
|
| 863 |
|
|
RIOFreeCmdBlk( CmdBlkP );
|
| 864 |
|
|
}
|
| 865 |
|
|
|
| 866 |
|
|
/*
|
| 867 |
|
|
** If there is a command for this rup, and the rup
|
| 868 |
|
|
** is idle, then process the command
|
| 869 |
|
|
*/
|
| 870 |
|
|
if ( (CmdBlkP = UnixRupP->CmdsWaitingP) && /* ASSIGN! */
|
| 871 |
|
|
(UnixRupP->CmdPendingP == NULL) &&
|
| 872 |
|
|
(RWORD(UnixRupP->RupP->txcontrol) == TX_RUP_INACTIVE)) {
|
| 873 |
|
|
/*
|
| 874 |
|
|
** if the pre-function is non-zero, call it.
|
| 875 |
|
|
** If it returns RIO_FAIL then don't
|
| 876 |
|
|
** send this command yet!
|
| 877 |
|
|
*/
|
| 878 |
|
|
#ifdef CHECK
|
| 879 |
|
|
CheckCmdBlkP (CmdBlkP);
|
| 880 |
|
|
#endif
|
| 881 |
|
|
if ( !(CmdBlkP->PreFuncP ?
|
| 882 |
|
|
(*CmdBlkP->PreFuncP)(CmdBlkP->PreArg, CmdBlkP) : TRUE)) {
|
| 883 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "Not ready to start command 0x%x\n",(int)CmdBlkP);
|
| 884 |
|
|
}
|
| 885 |
|
|
else {
|
| 886 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "Start new command 0x%x Cmd byte is 0x%x\n",
|
| 887 |
|
|
(int)CmdBlkP, CmdBlkP->Packet.data[0]);
|
| 888 |
|
|
/*
|
| 889 |
|
|
** Whammy! blat that pack!
|
| 890 |
|
|
*/
|
| 891 |
|
|
#ifdef CHECK
|
| 892 |
|
|
CheckPacketP ((PKT *)RIO_PTR(HostP->Caddr, UnixRupP->RupP->txpkt));
|
| 893 |
|
|
#endif
|
| 894 |
|
|
HostP->Copy( (caddr_t)&CmdBlkP->Packet,
|
| 895 |
|
|
RIO_PTR(HostP->Caddr, UnixRupP->RupP->txpkt), sizeof(PKT));
|
| 896 |
|
|
|
| 897 |
|
|
/*
|
| 898 |
|
|
** remove the command from the rup command queue...
|
| 899 |
|
|
*/
|
| 900 |
|
|
UnixRupP->CmdsWaitingP = CmdBlkP->NextP;
|
| 901 |
|
|
|
| 902 |
|
|
/*
|
| 903 |
|
|
** ...and place it on the pending position.
|
| 904 |
|
|
*/
|
| 905 |
|
|
UnixRupP->CmdPendingP = CmdBlkP;
|
| 906 |
|
|
|
| 907 |
|
|
/*
|
| 908 |
|
|
** set the command register
|
| 909 |
|
|
*/
|
| 910 |
|
|
WWORD(UnixRupP->RupP->txcontrol,TX_PACKET_READY);
|
| 911 |
|
|
|
| 912 |
|
|
/*
|
| 913 |
|
|
** the command block will be freed
|
| 914 |
|
|
** when the command has been processed.
|
| 915 |
|
|
*/
|
| 916 |
|
|
}
|
| 917 |
|
|
}
|
| 918 |
|
|
spin_unlock_irqrestore(&UnixRupP->RupLock, flags);
|
| 919 |
|
|
} while ( Rup );
|
| 920 |
|
|
}
|
| 921 |
|
|
|
| 922 |
|
|
|
| 923 |
|
|
/*
|
| 924 |
|
|
** Return the length of the named string
|
| 925 |
|
|
*/
|
| 926 |
|
|
int
|
| 927 |
|
|
RIOStrlen(Str)
|
| 928 |
|
|
register char *Str;
|
| 929 |
|
|
{
|
| 930 |
|
|
register int len = 0;
|
| 931 |
|
|
|
| 932 |
|
|
while ( *Str++ )
|
| 933 |
|
|
len++;
|
| 934 |
|
|
return len;
|
| 935 |
|
|
}
|
| 936 |
|
|
|
| 937 |
|
|
/*
|
| 938 |
|
|
** compares s1 to s2 and return 0 if they match.
|
| 939 |
|
|
*/
|
| 940 |
|
|
int
|
| 941 |
|
|
RIOStrCmp(s1, s2)
|
| 942 |
|
|
register char *s1;
|
| 943 |
|
|
register char *s2;
|
| 944 |
|
|
{
|
| 945 |
|
|
while ( *s1 && *s2 && *s1==*s2 )
|
| 946 |
|
|
s1++, s2++;
|
| 947 |
|
|
return *s1-*s2;
|
| 948 |
|
|
}
|
| 949 |
|
|
|
| 950 |
|
|
/*
|
| 951 |
|
|
** compares s1 to s2 for upto n bytes and return 0 if they match.
|
| 952 |
|
|
*/
|
| 953 |
|
|
int
|
| 954 |
|
|
RIOStrnCmp(s1, s2, n)
|
| 955 |
|
|
register char *s1;
|
| 956 |
|
|
register char *s2;
|
| 957 |
|
|
int n;
|
| 958 |
|
|
{
|
| 959 |
|
|
while ( n && *s1 && *s2 && *s1==*s2 )
|
| 960 |
|
|
n--, s1++, s2++;
|
| 961 |
|
|
return n ? *s1!=*s2 : 0;
|
| 962 |
|
|
}
|
| 963 |
|
|
|
| 964 |
|
|
/*
|
| 965 |
|
|
** copy up to 'len' bytes from 'from' to 'to'.
|
| 966 |
|
|
*/
|
| 967 |
|
|
void
|
| 968 |
|
|
RIOStrNCpy(to, from, len)
|
| 969 |
|
|
char *to;
|
| 970 |
|
|
char *from;
|
| 971 |
|
|
int len;
|
| 972 |
|
|
{
|
| 973 |
|
|
while ( len-- && (*to++ = *from++) )
|
| 974 |
|
|
;
|
| 975 |
|
|
to[-1]='\0';
|
| 976 |
|
|
}
|
| 977 |
|
|
|
| 978 |
|
|
int
|
| 979 |
|
|
RIOWFlushMark(iPortP, CmdBlkP)
|
| 980 |
|
|
int iPortP;
|
| 981 |
|
|
struct CmdBlk *CmdBlkP;
|
| 982 |
|
|
{
|
| 983 |
|
|
struct Port * PortP = (struct Port *)iPortP;
|
| 984 |
|
|
unsigned long flags;
|
| 985 |
|
|
|
| 986 |
|
|
rio_spin_lock_irqsave(&PortP->portSem, flags);
|
| 987 |
|
|
#ifdef CHECK
|
| 988 |
|
|
CheckPortP( PortP );
|
| 989 |
|
|
#endif
|
| 990 |
|
|
PortP->WflushFlag++;
|
| 991 |
|
|
PortP->MagicFlags |= MAGIC_FLUSH;
|
| 992 |
|
|
rio_spin_unlock_irqrestore(&PortP->portSem, flags);
|
| 993 |
|
|
return RIOUnUse( iPortP, CmdBlkP );
|
| 994 |
|
|
}
|
| 995 |
|
|
|
| 996 |
|
|
int
|
| 997 |
|
|
RIORFlushEnable(iPortP, CmdBlkP)
|
| 998 |
|
|
int iPortP;
|
| 999 |
|
|
struct CmdBlk *CmdBlkP;
|
| 1000 |
|
|
{
|
| 1001 |
|
|
struct Port * PortP = (struct Port *)iPortP;
|
| 1002 |
|
|
PKT *PacketP;
|
| 1003 |
|
|
unsigned long flags;
|
| 1004 |
|
|
|
| 1005 |
|
|
rio_spin_lock_irqsave(&PortP->portSem, flags);
|
| 1006 |
|
|
|
| 1007 |
|
|
while ( can_remove_receive(&PacketP, PortP) ) {
|
| 1008 |
|
|
remove_receive(PortP);
|
| 1009 |
|
|
ShowPacket(DBG_PROC, PacketP );
|
| 1010 |
|
|
put_free_end( PortP->HostP, PacketP );
|
| 1011 |
|
|
}
|
| 1012 |
|
|
|
| 1013 |
|
|
if ( RWORD(PortP->PhbP->handshake)==PHB_HANDSHAKE_SET ) {
|
| 1014 |
|
|
/*
|
| 1015 |
|
|
** MAGIC! (Basically, handshake the RX buffer, so that
|
| 1016 |
|
|
** the RTAs upstream can be re-enabled.)
|
| 1017 |
|
|
*/
|
| 1018 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "Util: Set RX handshake bit\n");
|
| 1019 |
|
|
WWORD(PortP->PhbP->handshake, PHB_HANDSHAKE_SET|PHB_HANDSHAKE_RESET);
|
| 1020 |
|
|
}
|
| 1021 |
|
|
rio_spin_unlock_irqrestore(&PortP->portSem, flags);
|
| 1022 |
|
|
return RIOUnUse( iPortP, CmdBlkP );
|
| 1023 |
|
|
}
|
| 1024 |
|
|
|
| 1025 |
|
|
int
|
| 1026 |
|
|
RIOUnUse(iPortP, CmdBlkP)
|
| 1027 |
|
|
int iPortP;
|
| 1028 |
|
|
struct CmdBlk *CmdBlkP;
|
| 1029 |
|
|
{
|
| 1030 |
|
|
struct Port * PortP = (struct Port *)iPortP;
|
| 1031 |
|
|
unsigned long flags;
|
| 1032 |
|
|
|
| 1033 |
|
|
rio_spin_lock_irqsave(&PortP->portSem, flags);
|
| 1034 |
|
|
|
| 1035 |
|
|
#ifdef CHECK
|
| 1036 |
|
|
CheckPortP( PortP );
|
| 1037 |
|
|
#endif
|
| 1038 |
|
|
rio_dprintk (RIO_DEBUG_CMD, "Decrement in use count for port\n");
|
| 1039 |
|
|
|
| 1040 |
|
|
if (PortP->InUse) {
|
| 1041 |
|
|
if ( --PortP->InUse != NOT_INUSE ) {
|
| 1042 |
|
|
rio_spin_unlock_irqrestore(&PortP->portSem, flags);
|
| 1043 |
|
|
return 0;
|
| 1044 |
|
|
}
|
| 1045 |
|
|
}
|
| 1046 |
|
|
/*
|
| 1047 |
|
|
** While PortP->InUse is set (i.e. a preemptive command has been sent to
|
| 1048 |
|
|
** the RTA and is awaiting completion), any transmit data is prevented from
|
| 1049 |
|
|
** being transferred from the write queue into the transmit packets
|
| 1050 |
|
|
** (add_transmit) and no furthur transmit interrupt will be sent for that
|
| 1051 |
|
|
** data. The next interrupt will occur up to 500ms later (RIOIntr is called
|
| 1052 |
|
|
** twice a second as a saftey measure). This was the case when kermit was
|
| 1053 |
|
|
** used to send data into a RIO port. After each packet was sent, TCFLSH
|
| 1054 |
|
|
** was called to flush the read queue preemptively. PortP->InUse was
|
| 1055 |
|
|
** incremented, thereby blocking the 6 byte acknowledgement packet
|
| 1056 |
|
|
** transmitted back. This acknowledgment hung around for 500ms before
|
| 1057 |
|
|
** being sent, thus reducing input performance substantially!.
|
| 1058 |
|
|
** When PortP->InUse becomes NOT_INUSE, we must ensure that any data
|
| 1059 |
|
|
** hanging around in the transmit buffer is sent immediately.
|
| 1060 |
|
|
*/
|
| 1061 |
|
|
WWORD(PortP->HostP->ParmMapP->tx_intr, 1);
|
| 1062 |
|
|
/* What to do here ..
|
| 1063 |
|
|
wakeup( (caddr_t)&(PortP->InUse) );
|
| 1064 |
|
|
*/
|
| 1065 |
|
|
rio_spin_unlock_irqrestore(&PortP->portSem, flags);
|
| 1066 |
|
|
return 0;
|
| 1067 |
|
|
}
|
| 1068 |
|
|
|
| 1069 |
|
|
void
|
| 1070 |
|
|
ShowPacket(Flags, PacketP)
|
| 1071 |
|
|
uint Flags;
|
| 1072 |
|
|
struct PKT *PacketP;
|
| 1073 |
|
|
{
|
| 1074 |
|
|
}
|
| 1075 |
|
|
|
| 1076 |
|
|
/*
|
| 1077 |
|
|
**
|
| 1078 |
|
|
** How to use this file:
|
| 1079 |
|
|
**
|
| 1080 |
|
|
** To send a command down a rup, you need to allocate a command block, fill
|
| 1081 |
|
|
** in the packet information, fill in the command number, fill in the pre-
|
| 1082 |
|
|
** and post- functions and arguments, and then add the command block to the
|
| 1083 |
|
|
** queue of command blocks for the port in question. When the port is idle,
|
| 1084 |
|
|
** then the pre-function will be called. If this returns RIO_FAIL then the
|
| 1085 |
|
|
** command will be re-queued and tried again at a later date (probably in one
|
| 1086 |
|
|
** clock tick). If the pre-function returns NOT RIO_FAIL, then the command
|
| 1087 |
|
|
** packet will be queued on the RUP, and the txcontrol field set to the
|
| 1088 |
|
|
** command number. When the txcontrol field has changed from being the
|
| 1089 |
|
|
** command number, then the post-function will be called, with the argument
|
| 1090 |
|
|
** specified earlier, a pointer to the command block, and the value of
|
| 1091 |
|
|
** txcontrol.
|
| 1092 |
|
|
**
|
| 1093 |
|
|
** To allocate a command block, call RIOGetCmdBlk(). This returns a pointer
|
| 1094 |
|
|
** to the command block structure allocated, or NULL if there aren't any.
|
| 1095 |
|
|
** The block will have been zeroed for you.
|
| 1096 |
|
|
**
|
| 1097 |
|
|
** The structure has the following fields:
|
| 1098 |
|
|
**
|
| 1099 |
|
|
** struct CmdBlk
|
| 1100 |
|
|
** {
|
| 1101 |
|
|
** struct CmdBlk *NextP; ** Pointer to next command block **
|
| 1102 |
|
|
** struct PKT Packet; ** A packet, to copy to the rup **
|
| 1103 |
|
|
** int (*PreFuncP)(); ** The func to call to check if OK **
|
| 1104 |
|
|
** int PreArg; ** The arg for the func **
|
| 1105 |
|
|
** int (*PostFuncP)(); ** The func to call when completed **
|
| 1106 |
|
|
** int PostArg; ** The arg for the func **
|
| 1107 |
|
|
** };
|
| 1108 |
|
|
**
|
| 1109 |
|
|
** You need to fill in ALL fields EXCEPT NextP, which is used to link the
|
| 1110 |
|
|
** blocks together either on the free list or on the Rup list.
|
| 1111 |
|
|
**
|
| 1112 |
|
|
** Packet is an actual packet structure to be filled in with the packet
|
| 1113 |
|
|
** information associated with the command. You need to fill in everything,
|
| 1114 |
|
|
** as the command processore doesn't process the command packet in any way.
|
| 1115 |
|
|
**
|
| 1116 |
|
|
** The PreFuncP is called before the packet is enqueued on the host rup.
|
| 1117 |
|
|
** PreFuncP is called as (*PreFuncP)(PreArg, CmdBlkP);. PreFuncP must
|
| 1118 |
|
|
** return !RIO_FAIL to have the packet queued on the rup, and RIO_FAIL
|
| 1119 |
|
|
** if the packet is NOT to be queued.
|
| 1120 |
|
|
**
|
| 1121 |
|
|
** The PostFuncP is called when the command has completed. It is called
|
| 1122 |
|
|
** as (*PostFuncP)(PostArg, CmdBlkP, txcontrol);. PostFuncP is not expected
|
| 1123 |
|
|
** to return a value. PostFuncP does NOT need to free the command block,
|
| 1124 |
|
|
** as this happens automatically after PostFuncP returns.
|
| 1125 |
|
|
**
|
| 1126 |
|
|
** Once the command block has been filled in, it is attached to the correct
|
| 1127 |
|
|
** queue by calling RIOQueueCmdBlk( HostP, Rup, CmdBlkP ) where HostP is
|
| 1128 |
|
|
** a pointer to the struct Host, Rup is the NUMBER of the rup (NOT a pointer
|
| 1129 |
|
|
** to it!), and CmdBlkP is the pointer to the command block allocated using
|
| 1130 |
|
|
** RIOGetCmdBlk().
|
| 1131 |
|
|
**
|
| 1132 |
|
|
*/
|
