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   1 /*
   2  * IEEE 1394 for Linux
   3  *
   4  * Core support: hpsb_packet management, packet handling and forwarding to
   5  *               highlevel or lowlevel code
   6  *
   7  * Copyright (C) 1999, 2000 Andreas E. Bombe
   8  *                     2002 Manfred Weihs <weihs@ict.tuwien.ac.at>
   9  *
  10  * This code is licensed under the GPL.  See the file COPYING in the root
  11  * directory of the kernel sources for details.
  12  *
  13  *
  14  * Contributions:
  15  *
  16  * Manfred Weihs <weihs@ict.tuwien.ac.at>
  17  *        loopback functionality in hpsb_send_packet
  18  *        allow highlevel drivers to disable automatic response generation
  19  *              and to generate responses themselves (deferred)
  20  *
  21  */
  22
  23 #include <linux/config.h>
  24 #include <linux/kernel.h>
  25 #include <linux/list.h>
  26 #include <linux/string.h>
  27 #include <linux/init.h>
  28 #include <linux/slab.h>
  29 #include <linux/interrupt.h>
  30 #include <linux/module.h>
  31 #include <linux/moduleparam.h>
  32 #include <linux/bitops.h>
  33 #include <linux/kdev_t.h>
  34 #include <linux/skbuff.h>
  35 #include <linux/suspend.h>
  36
  37 #include <asm/byteorder.h>
  38 #include <asm/semaphore.h>
  39
  40 #include "ieee1394_types.h"
  41 #include "ieee1394.h"
  42 #include "hosts.h"
  43 #include "ieee1394_core.h"
  44 #include "highlevel.h"
  45 #include "ieee1394_transactions.h"
  46 #include "csr.h"
  47 #include "nodemgr.h"
  48 #include "dma.h"
  49 #include "iso.h"
  50 #include "config_roms.h"
  51
  52 /*
  53  * Disable the nodemgr detection and config rom reading functionality.
  54  */
  55 static int disable_nodemgr;
  56 module_param(disable_nodemgr, int, 0444);
  57 MODULE_PARM_DESC(disable_nodemgr, "Disable nodemgr functionality.");
  58
  59 /* Disable Isochronous Resource Manager functionality */
  60 int hpsb_disable_irm = 0;
  61 module_param_named(disable_irm, hpsb_disable_irm, bool, 0);
  62 MODULE_PARM_DESC(disable_irm,
  63                  "Disable Isochronous Resource Manager functionality.");
  64
  65 /* We are GPL, so treat us special */
  66 MODULE_LICENSE("GPL");
  67
  68 /* Some globals used */
  69 const char *hpsb_speedto_str[] = { "S100", "S200", "S400", "S800", "S1600", "S3200" };
  70 struct class *hpsb_protocol_class;
  71
  72 #ifdef CONFIG_IEEE1394_VERBOSEDEBUG
  73 static void dump_packet(const char *text, quadlet_t *data, int size, int speed)
  74 {
  75         int i;
  76
  77         size /= 4;
  78         size = (size > 4 ? 4 : size);
  79
  80         printk(KERN_DEBUG "ieee1394: %s", text);
  81         if (speed > -1 && speed < 6)
  82                 printk(" at %s", hpsb_speedto_str[speed]);
  83         printk(":");
  84         for (i = 0; i < size; i++)
  85                 printk(" %08x", data[i]);
  86         printk("\n");
  87 }
  88 #else
  89 #define dump_packet(a,b,c,d)
  90 #endif
  91
  92 static void abort_requests(struct hpsb_host *host);
  93 static void queue_packet_complete(struct hpsb_packet *packet);
  94
  95
  96 /**
  97  * hpsb_set_packet_complete_task - set the task that runs when a packet
  98  * completes. You cannot call this more than once on a single packet
  99  * before it is sent.
 100  *
 101  * @packet: the packet whose completion we want the task added to
 102  * @routine: function to call
 103  * @data: data (if any) to pass to the above function
 104  */
 105 void hpsb_set_packet_complete_task(struct hpsb_packet *packet,
 106                                    void (*routine)(void *), void *data)
 107 {
 108         WARN_ON(packet->complete_routine != NULL);
 109         packet->complete_routine = routine;
 110         packet->complete_data = data;
 111         return;
 112 }
 113
 114 /**
 115  * hpsb_alloc_packet - allocate new packet structure
 116  * @data_size: size of the data block to be allocated
 117  *
 118  * This function allocates, initializes and returns a new &struct hpsb_packet.
 119  * It can be used in interrupt context.  A header block is always included, its
 120  * size is big enough to contain all possible 1394 headers.  The data block is
 121  * only allocated when @data_size is not zero.
 122  *
 123  * For packets for which responses will be received the @data_size has to be big
 124  * enough to contain the response's data block since no further allocation
 125  * occurs at response matching time.
 126  *
 127  * The packet's generation value will be set to the current generation number
 128  * for ease of use.  Remember to overwrite it with your own recorded generation
 129  * number if you can not be sure that your code will not race with a bus reset.
 130  *
 131  * Return value: A pointer to a &struct hpsb_packet or NULL on allocation
 132  * failure.
 133  */
 134 struct hpsb_packet *hpsb_alloc_packet(size_t data_size)
 135 {
 136         struct hpsb_packet *packet = NULL;
 137         struct sk_buff *skb;
 138
 139         data_size = ((data_size + 3) & ~3);
 140
 141         skb = alloc_skb(data_size + sizeof(*packet), GFP_ATOMIC);
 142         if (skb == NULL)
 143                 return NULL;
 144
 145         memset(skb->data, 0, data_size + sizeof(*packet));
 146
 147         packet = (struct hpsb_packet *)skb->data;
 148         packet->skb = skb;
 149
 150         packet->header = packet->embedded_header;
 151         packet->state = hpsb_unused;
 152         packet->generation = -1;
 153         INIT_LIST_HEAD(&packet->driver_list);
 154         atomic_set(&packet->refcnt, 1);
 155
 156         if (data_size) {
 157                 packet->data = (quadlet_t *)(skb->data + sizeof(*packet));
 158                 packet->data_size = data_size;
 159         }
 160
 161         return packet;
 162 }
 163
 164
 165 /**
 166  * hpsb_free_packet - free packet and data associated with it
 167  * @packet: packet to free (is NULL safe)
 168  *
 169  * This function will free packet->data and finally the packet itself.
 170  */
 171 void hpsb_free_packet(struct hpsb_packet *packet)
 172 {
 173         if (packet && atomic_dec_and_test(&packet->refcnt)) {
 174                 BUG_ON(!list_empty(&packet->driver_list));
 175                 kfree_skb(packet->skb);
 176         }
 177 }
 178
 179
 180 int hpsb_reset_bus(struct hpsb_host *host, int type)
 181 {
 182         if (!host->in_bus_reset) {
 183                 host->driver->devctl(host, RESET_BUS, type);
 184                 return 0;
 185         } else {
 186                 return 1;
 187         }
 188 }
 189
 190
 191 int hpsb_bus_reset(struct hpsb_host *host)
 192 {
 193         if (host->in_bus_reset) {
 194                 HPSB_NOTICE("%s called while bus reset already in progress",
 195                             __FUNCTION__);
 196                 return 1;
 197         }
 198
 199         abort_requests(host);
 200         host->in_bus_reset = 1;
 201         host->irm_id = -1;
 202         host->is_irm = 0;
 203         host->busmgr_id = -1;
 204         host->is_busmgr = 0;
 205         host->is_cycmst = 0;
 206         host->node_count = 0;
 207         host->selfid_count = 0;
 208
 209         return 0;
 210 }
 211
 212
 213 /*
 214  * Verify num_of_selfids SelfIDs and return number of nodes.  Return zero in
 215  * case verification failed.
 216  */
 217 static int check_selfids(struct hpsb_host *host)
 218 {
 219         int nodeid = -1;
 220         int rest_of_selfids = host->selfid_count;
 221         struct selfid *sid = (struct selfid *)host->topology_map;
 222         struct ext_selfid *esid;
 223         int esid_seq = 23;
 224
 225         host->nodes_active = 0;
 226
 227         while (rest_of_selfids--) {
 228                 if (!sid->extended) {
 229                         nodeid++;
 230                         esid_seq = 0;
 231
 232                         if (sid->phy_id != nodeid) {
 233                                 HPSB_INFO("SelfIDs failed monotony check with "
 234                                           "%d", sid->phy_id);
 235                                 return 0;
 236                         }
 237
 238                         if (sid->link_active) {
 239                                 host->nodes_active++;
 240                                 if (sid->contender)
 241                                         host->irm_id = LOCAL_BUS | sid->phy_id;
 242                         }
 243                 } else {
 244                         esid = (struct ext_selfid *)sid;
 245
 246                         if ((esid->phy_id != nodeid)
 247                             || (esid->seq_nr != esid_seq)) {
 248                                 HPSB_INFO("SelfIDs failed monotony check with "
 249                                           "%d/%d", esid->phy_id, esid->seq_nr);
 250                                 return 0;
 251                         }
 252                         esid_seq++;
 253                 }
 254                 sid++;
 255         }
 256
 257         esid = (struct ext_selfid *)(sid - 1);
 258         while (esid->extended) {
 259                 if ((esid->porta == SELFID_PORT_PARENT) ||
 260                     (esid->portb == SELFID_PORT_PARENT) ||
 261                     (esid->portc == SELFID_PORT_PARENT) ||
 262                     (esid->portd == SELFID_PORT_PARENT) ||
 263                     (esid->porte == SELFID_PORT_PARENT) ||
 264                     (esid->portf == SELFID_PORT_PARENT) ||
 265                     (esid->portg == SELFID_PORT_PARENT) ||
 266                     (esid->porth == SELFID_PORT_PARENT)) {
 267                         HPSB_INFO("SelfIDs failed root check on "
 268                                   "extended SelfID");
 269                         return 0;
 270                 }
 271                 esid--;
 272         }
 273
 274         sid = (struct selfid *)esid;
 275         if ((sid->port0 == SELFID_PORT_PARENT) ||
 276             (sid->port1 == SELFID_PORT_PARENT) ||
 277             (sid->port2 == SELFID_PORT_PARENT)) {
 278                 HPSB_INFO("SelfIDs failed root check");
 279                 return 0;
 280         }
 281
 282         host->node_count = nodeid + 1;
 283         return 1;
 284 }
 285
 286 static void build_speed_map(struct hpsb_host *host, int nodecount)
 287 {
 288         u8 speedcap[nodecount];
 289         u8 cldcnt[nodecount];
 290         u8 *map = host->speed_map;
 291         struct selfid *sid;
 292         struct ext_selfid *esid;
 293         int i, j, n;
 294
 295         for (i = 0; i < (nodecount * 64); i += 64) {
 296                 for (j = 0; j < nodecount; j++) {
 297                         map[i+j] = IEEE1394_SPEED_MAX;
 298                 }
 299         }
 300
 301         for (i = 0; i < nodecount; i++) {
 302                 cldcnt[i] = 0;
 303         }
 304
 305         /* find direct children count and speed */
 306         for (sid = (struct selfid *)&host->topology_map[host->selfid_count-1],
 307                      n = nodecount - 1;
 308              (void *)sid >= (void *)host->topology_map; sid--) {
 309                 if (sid->extended) {
 310                         esid = (struct ext_selfid *)sid;
 311
 312                         if (esid->porta == SELFID_PORT_CHILD) cldcnt[n]++;
 313                         if (esid->portb == SELFID_PORT_CHILD) cldcnt[n]++;
 314                         if (esid->portc == SELFID_PORT_CHILD) cldcnt[n]++;
 315                         if (esid->portd == SELFID_PORT_CHILD) cldcnt[n]++;
 316                         if (esid->porte == SELFID_PORT_CHILD) cldcnt[n]++;
 317                         if (esid->portf == SELFID_PORT_CHILD) cldcnt[n]++;
 318                         if (esid->portg == SELFID_PORT_CHILD) cldcnt[n]++;
 319                         if (esid->porth == SELFID_PORT_CHILD) cldcnt[n]++;
 320                 } else {
 321                         if (sid->port0 == SELFID_PORT_CHILD) cldcnt[n]++;
 322                         if (sid->port1 == SELFID_PORT_CHILD) cldcnt[n]++;
 323                         if (sid->port2 == SELFID_PORT_CHILD) cldcnt[n]++;
 324
 325                         speedcap[n] = sid->speed;
 326                         n--;
 327                 }
 328         }
 329
 330         /* set self mapping */
 331         for (i = 0; i < nodecount; i++) {
 332                 map[64*i + i] = speedcap[i];
 333         }
 334
 335         /* fix up direct children count to total children count;
 336          * also fix up speedcaps for sibling and parent communication */
 337         for (i = 1; i < nodecount; i++) {
 338                 for (j = cldcnt[i], n = i - 1; j > 0; j--) {
 339                         cldcnt[i] += cldcnt[n];
 340                         speedcap[n] = min(speedcap[n], speedcap[i]);
 341                         n -= cldcnt[n] + 1;
 342                 }
 343         }
 344
 345         for (n = 0; n < nodecount; n++) {
 346                 for (i = n - cldcnt[n]; i <= n; i++) {
 347                         for (j = 0; j < (n - cldcnt[n]); j++) {
 348                                 map[j*64 + i] = map[i*64 + j] =
 349                                         min(map[i*64 + j], speedcap[n]);
 350                         }
 351                         for (j = n + 1; j < nodecount; j++) {
 352                                 map[j*64 + i] = map[i*64 + j] =
 353                                         min(map[i*64 + j], speedcap[n]);
 354                         }
 355                 }
 356         }
 357 }
 358
 359
 360 void hpsb_selfid_received(struct hpsb_host *host, quadlet_t sid)
 361 {
 362         if (host->in_bus_reset) {
 363                 HPSB_VERBOSE("Including SelfID 0x%x", sid);
 364                 host->topology_map[host->selfid_count++] = sid;
 365         } else {
 366                 HPSB_NOTICE("Spurious SelfID packet (0x%08x) received from bus %d",
 367                             sid, NODEID_TO_BUS(host->node_id));
 368         }
 369 }
 370
 371 void hpsb_selfid_complete(struct hpsb_host *host, int phyid, int isroot)
 372 {
 373         if (!host->in_bus_reset)
 374                 HPSB_NOTICE("SelfID completion called outside of bus reset!");
 375
 376         host->node_id = LOCAL_BUS | phyid;
 377         host->is_root = isroot;
 378
 379         if (!check_selfids(host)) {
 380                 if (host->reset_retries++ < 20) {
 381                         /* selfid stage did not complete without error */
 382                         HPSB_NOTICE("Error in SelfID stage, resetting");
 383                         host->in_bus_reset = 0;
 384                         /* this should work from ohci1394 now... */
 385                         hpsb_reset_bus(host, LONG_RESET);
 386                         return;
 387                 } else {
 388                         HPSB_NOTICE("Stopping out-of-control reset loop");
 389                         HPSB_NOTICE("Warning - topology map and speed map will not be valid");
 390                         host->reset_retries = 0;
 391                 }
 392         } else {
 393                 host->reset_retries = 0;
 394                 build_speed_map(host, host->node_count);
 395         }
 396
 397         HPSB_VERBOSE("selfid_complete called with successful SelfID stage "
 398                      "... irm_id: 0x%X node_id: 0x%X",host->irm_id,host->node_id);
 399
 400         /* irm_id is kept up to date by check_selfids() */
 401         if (host->irm_id == host->node_id) {
 402                 host->is_irm = 1;
 403         } else {
 404                 host->is_busmgr = 0;
 405                 host->is_irm = 0;
 406         }
 407
 408         if (isroot) {
 409                 host->driver->devctl(host, ACT_CYCLE_MASTER, 1);
 410                 host->is_cycmst = 1;
 411         }
 412         atomic_inc(&host->generation);
 413         host->in_bus_reset = 0;
 414         highlevel_host_reset(host);
 415 }
 416
 417
 418 void hpsb_packet_sent(struct hpsb_host *host, struct hpsb_packet *packet,
 419                       int ackcode)
 420 {
 421         unsigned long flags;
 422
 423         spin_lock_irqsave(&host->pending_packet_queue.lock, flags);
 424
 425         packet->ack_code = ackcode;
 426
 427         if (packet->no_waiter || packet->state == hpsb_complete) {
 428                 /* if packet->no_waiter, must not have a tlabel allocated */
 429                 spin_unlock_irqrestore(&host->pending_packet_queue.lock, flags);
 430                 hpsb_free_packet(packet);
 431                 return;
 432         }
 433
 434         atomic_dec(&packet->refcnt);    /* drop HC's reference */
 435         /* here the packet must be on the host->pending_packet_queue */
 436
 437         if (ackcode != ACK_PENDING || !packet->expect_response) {
 438                 packet->state = hpsb_complete;
 439                 __skb_unlink(packet->skb, &host->pending_packet_queue);
 440                 spin_unlock_irqrestore(&host->pending_packet_queue.lock, flags);
 441                 queue_packet_complete(packet);
 442                 return;
 443         }
 444
 445         packet->state = hpsb_pending;
 446         packet->sendtime = jiffies;
 447
 448         spin_unlock_irqrestore(&host->pending_packet_queue.lock, flags);
 449
 450         mod_timer(&host->timeout, jiffies + host->timeout_interval);
 451 }
 452
 453 /**
 454  * hpsb_send_phy_config - transmit a PHY configuration packet on the bus
 455  * @host: host that PHY config packet gets sent through
 456  * @rootid: root whose force_root bit should get set (-1 = don't set force_root)
 457  * @gapcnt: gap count value to set (-1 = don't set gap count)
 458  *
 459  * This function sends a PHY config packet on the bus through the specified host.
 460  *
 461  * Return value: 0 for success or error number otherwise.
 462  */
 463 int hpsb_send_phy_config(struct hpsb_host *host, int rootid, int gapcnt)
 464 {
 465         struct hpsb_packet *packet;
 466         int retval = 0;
 467
 468         if (rootid >= ALL_NODES || rootid < -1 || gapcnt > 0x3f || gapcnt < -1 ||
 469            (rootid == -1 && gapcnt == -1)) {
 470                 HPSB_DEBUG("Invalid Parameter: rootid = %d   gapcnt = %d",
 471                            rootid, gapcnt);
 472                 return -EINVAL;
 473         }
 474
 475         packet = hpsb_alloc_packet(0);
 476         if (!packet)
 477                 return -ENOMEM;
 478
 479         packet->host = host;
 480         packet->header_size = 8;
 481         packet->data_size = 0;
 482         packet->expect_response = 0;
 483         packet->no_waiter = 0;
 484         packet->type = hpsb_raw;
 485         packet->header[0] = 0;
 486         if (rootid != -1)
 487                 packet->header[0] |= rootid << 24 | 1 << 23;
 488         if (gapcnt != -1)
 489                 packet->header[0] |= gapcnt << 16 | 1 << 22;
 490
 491         packet->header[1] = ~packet->header[0];
 492
 493         packet->generation = get_hpsb_generation(host);
 494
 495         retval = hpsb_send_packet_and_wait(packet);
 496         hpsb_free_packet(packet);
 497
 498         return retval;
 499 }
 500
 501 /**
 502  * hpsb_send_packet - transmit a packet on the bus
 503  * @packet: packet to send
 504  *
 505  * The packet is sent through the host specified in the packet->host field.
 506  * Before sending, the packet's transmit speed is automatically determined
 507  * using the local speed map when it is an async, non-broadcast packet.
 508  *
 509  * Possibilities for failure are that host is either not initialized, in bus
 510  * reset, the packet's generation number doesn't match the current generation
 511  * number or the host reports a transmit error.
 512  *
 513  * Return value: 0 on success, negative errno on failure.
 514  */
 515 int hpsb_send_packet(struct hpsb_packet *packet)
 516 {
 517         struct hpsb_host *host = packet->host;
 518
 519         if (host->is_shutdown)
 520                 return -EINVAL;
 521         if (host->in_bus_reset ||
 522             (packet->generation != get_hpsb_generation(host)))
 523                 return -EAGAIN;
 524
 525         packet->state = hpsb_queued;
 526
 527         /* This just seems silly to me */
 528         WARN_ON(packet->no_waiter && packet->expect_response);
 529
 530         if (!packet->no_waiter || packet->expect_response) {
 531                 atomic_inc(&packet->refcnt);
 532                 /* Set the initial "sendtime" to 10 seconds from now, to
 533                    prevent premature expiry.  If a packet takes more than
 534                    10 seconds to hit the wire, we have bigger problems :) */
 535                 packet->sendtime = jiffies + 10 * HZ;
 536                 skb_queue_tail(&host->pending_packet_queue, packet->skb);
 537         }
 538
 539         if (packet->node_id == host->node_id) {
 540                 /* it is a local request, so handle it locally */
 541
 542                 quadlet_t *data;
 543                 size_t size = packet->data_size + packet->header_size;
 544
 545                 data = kmalloc(size, GFP_ATOMIC);
 546                 if (!data) {
 547                         HPSB_ERR("unable to allocate memory for concatenating header and data");
 548                         return -ENOMEM;
 549                 }
 550
 551                 memcpy(data, packet->header, packet->header_size);
 552
 553                 if (packet->data_size)
 554                         memcpy(((u8*)data) + packet->header_size, packet->data, packet->data_size);
 555
 556                 dump_packet("send packet local", packet->header, packet->header_size, -1);
 557
 558                 hpsb_packet_sent(host, packet, packet->expect_response ? ACK_PENDING : ACK_COMPLETE);
 559                 hpsb_packet_received(host, data, size, 0);
 560
 561                 kfree(data);
 562
 563                 return 0;
 564         }
 565
 566         if (packet->type == hpsb_async && packet->node_id != ALL_NODES) {
 567                 packet->speed_code =
 568                         host->speed_map[NODEID_TO_NODE(host->node_id) * 64
 569                                        + NODEID_TO_NODE(packet->node_id)];
 570         }
 571
 572         dump_packet("send packet", packet->header, packet->header_size, packet->speed_code);
 573
 574         return host->driver->transmit_packet(host, packet);
 575 }
 576
 577 /* We could just use complete() directly as the packet complete
 578  * callback, but this is more typesafe, in the sense that we get a
 579  * compiler error if the prototype for complete() changes. */
 580
 581 static void complete_packet(void *data)
 582 {
 583         complete((struct completion *) data);
 584 }
 585
 586 int hpsb_send_packet_and_wait(struct hpsb_packet *packet)
 587 {
 588         struct completion done;
 589         int retval;
 590
 591         init_completion(&done);
 592         hpsb_set_packet_complete_task(packet, complete_packet, &done);
 593         retval = hpsb_send_packet(packet);
 594         if (retval == 0)
 595                 wait_for_completion(&done);
 596
 597         return retval;
 598 }
 599
 600 static void send_packet_nocare(struct hpsb_packet *packet)
 601 {
 602         if (hpsb_send_packet(packet) < 0) {
 603                 hpsb_free_packet(packet);
 604         }
 605 }
 606
 607
 608 static void handle_packet_response(struct hpsb_host *host, int tcode,
 609                                    quadlet_t *data, size_t size)
 610 {
 611         struct hpsb_packet *packet = NULL;
 612         struct sk_buff *skb;
 613         int tcode_match = 0;
 614         int tlabel;
 615         unsigned long flags;
 616
 617         tlabel = (data[0] >> 10) & 0x3f;
 618
 619         spin_lock_irqsave(&host->pending_packet_queue.lock, flags);
 620
 621         skb_queue_walk(&host->pending_packet_queue, skb) {
 622                 packet = (struct hpsb_packet *)skb->data;
 623                 if ((packet->tlabel == tlabel)
 624                     && (packet->node_id == (data[1] >> 16))){
 625                         break;
 626                 }
 627
 628                 packet = NULL;
 629         }
 630
 631         if (packet == NULL) {
 632                 HPSB_DEBUG("unsolicited response packet received - no tlabel match");
 633                 dump_packet("contents", data, 16, -1);
 634                 spin_unlock_irqrestore(&host->pending_packet_queue.lock, flags);
 635                 return;
 636         }
 637
 638         switch (packet->tcode) {
 639         case TCODE_WRITEQ:
 640         case TCODE_WRITEB:
 641                 if (tcode != TCODE_WRITE_RESPONSE)
 642                         break;
 643                 tcode_match = 1;
 644                 memcpy(packet->header, data, 12);
 645                 break;
 646         case TCODE_READQ:
 647                 if (tcode != TCODE_READQ_RESPONSE)
 648                         break;
 649                 tcode_match = 1;
 650                 memcpy(packet->header, data, 16);
 651                 break;
 652         case TCODE_READB:
 653                 if (tcode != TCODE_READB_RESPONSE)
 654                         break;
 655                 tcode_match = 1;
 656                 BUG_ON(packet->skb->len - sizeof(*packet) < size - 16);
 657                 memcpy(packet->header, data, 16);
 658                 memcpy(packet->data, data + 4, size - 16);
 659                 break;
 660         case TCODE_LOCK_REQUEST:
 661                 if (tcode != TCODE_LOCK_RESPONSE)
 662                         break;
 663                 tcode_match = 1;
 664                 size = min((size - 16), (size_t)8);
 665                 BUG_ON(packet->skb->len - sizeof(*packet) < size);
 666                 memcpy(packet->header, data, 16);
 667                 memcpy(packet->data, data + 4, size);
 668                 break;
 669         }
 670
 671         if (!tcode_match) {
 672                 spin_unlock_irqrestore(&host->pending_packet_queue.lock, flags);
 673                 HPSB_INFO("unsolicited response packet received - tcode mismatch");
 674                 dump_packet("contents", data, 16, -1);
 675                 return;
 676         }
 677
 678         __skb_unlink(skb, &host->pending_packet_queue);
 679
 680         if (packet->state == hpsb_queued) {
 681                 packet->sendtime = jiffies;
 682                 packet->ack_code = ACK_PENDING;
 683         }
 684
 685         packet->state = hpsb_complete;
 686         spin_unlock_irqrestore(&host->pending_packet_queue.lock, flags);
 687
 688         queue_packet_complete(packet);
 689 }
 690
 691
 692 static struct hpsb_packet *create_reply_packet(struct hpsb_host *host,
 693                                                quadlet_t *data, size_t dsize)
 694 {
 695         struct hpsb_packet *p;
 696
 697         p = hpsb_alloc_packet(dsize);
 698         if (unlikely(p == NULL)) {
 699                 /* FIXME - send data_error response */
 700                 return NULL;
 701         }
 702
 703         p->type = hpsb_async;
 704         p->state = hpsb_unused;
 705         p->host = host;
 706         p->node_id = data[1] >> 16;
 707         p->tlabel = (data[0] >> 10) & 0x3f;
 708         p->no_waiter = 1;
 709
 710         p->generation = get_hpsb_generation(host);
 711
 712         if (dsize % 4)
 713                 p->data[dsize / 4] = 0;
 714
 715         return p;
 716 }
 717
 718 #define PREP_ASYNC_HEAD_RCODE(tc) \
 719         packet->tcode = tc; \
 720         packet->header[0] = (packet->node_id << 16) | (packet->tlabel << 10) \
 721                 | (1 << 8) | (tc << 4); \
 722         packet->header[1] = (packet->host->node_id << 16) | (rcode << 12); \
 723         packet->header[2] = 0
 724
 725 static void fill_async_readquad_resp(struct hpsb_packet *packet, int rcode,
 726                               quadlet_t data)
 727 {
 728         PREP_ASYNC_HEAD_RCODE(TCODE_READQ_RESPONSE);
 729         packet->header[3] = data;
 730         packet->header_size = 16;
 731         packet->data_size = 0;
 732 }
 733
 734 static void fill_async_readblock_resp(struct hpsb_packet *packet, int rcode,
 735                                int length)
 736 {
 737         if (rcode != RCODE_COMPLETE)
 738                 length = 0;
 739
 740         PREP_ASYNC_HEAD_RCODE(TCODE_READB_RESPONSE);
 741         packet->header[3] = length << 16;
 742         packet->header_size = 16;
 743         packet->data_size = length + (length % 4 ? 4 - (length % 4) : 0);
 744 }
 745
 746 static void fill_async_write_resp(struct hpsb_packet *packet, int rcode)
 747 {
 748         PREP_ASYNC_HEAD_RCODE(TCODE_WRITE_RESPONSE);
 749         packet->header[2] = 0;
 750         packet->header_size = 12;
 751         packet->data_size = 0;
 752 }
 753
 754 static void fill_async_lock_resp(struct hpsb_packet *packet, int rcode, int extcode,
 755                           int length)
 756 {
 757         if (rcode != RCODE_COMPLETE)
 758                 length = 0;
 759
 760         PREP_ASYNC_HEAD_RCODE(TCODE_LOCK_RESPONSE);
 761         packet->header[3] = (length << 16) | extcode;
 762         packet->header_size = 16;
 763         packet->data_size = length;
 764 }
 765
 766 #define PREP_REPLY_PACKET(length) \
 767                 packet = create_reply_packet(host, data, length); \
 768                 if (packet == NULL) break
 769
 770 static void handle_incoming_packet(struct hpsb_host *host, int tcode,
 771                                    quadlet_t *data, size_t size, int write_acked)
 772 {
 773         struct hpsb_packet *packet;
 774         int length, rcode, extcode;
 775         quadlet_t buffer;
 776         nodeid_t source = data[1] >> 16;
 777         nodeid_t dest = data[0] >> 16;
 778         u16 flags = (u16) data[0];
 779         u64 addr;
 780
 781         /* big FIXME - no error checking is done for an out of bounds length */
 782
 783         switch (tcode) {
 784         case TCODE_WRITEQ:
 785                 addr = (((u64)(data[1] & 0xffff)) << 32) | data[2];
 786                 rcode = highlevel_write(host, source, dest, data+3,
 787                                         addr, 4, flags);
 788
 789                 if (!write_acked
 790                     && (NODEID_TO_NODE(data[0] >> 16) != NODE_MASK)
 791                     && (rcode >= 0)) {
 792                         /* not a broadcast write, reply */
 793                         PREP_REPLY_PACKET(0);
 794                         fill_async_write_resp(packet, rcode);
 795                         send_packet_nocare(packet);
 796                 }
 797                 break;
 798
 799         case TCODE_WRITEB:
 800                 addr = (((u64)(data[1] & 0xffff)) << 32) | data[2];
 801                 rcode = highlevel_write(host, source, dest, data+4,
 802                                         addr, data[3]>>16, flags);
 803
 804                 if (!write_acked
 805                     && (NODEID_TO_NODE(data[0] >> 16) != NODE_MASK)
 806                     && (rcode >= 0)) {
 807                         /* not a broadcast write, reply */
 808                         PREP_REPLY_PACKET(0);
 809                         fill_async_write_resp(packet, rcode);
 810                         send_packet_nocare(packet);
 811                 }
 812                 break;
 813
 814         case TCODE_READQ:
 815                 addr = (((u64)(data[1] & 0xffff)) << 32) | data[2];
 816                 rcode = highlevel_read(host, source, &buffer, addr, 4, flags);
 817
 818                 if (rcode >= 0) {
 819                         PREP_REPLY_PACKET(0);
 820                         fill_async_readquad_resp(packet, rcode, buffer);
 821                         send_packet_nocare(packet);
 822                 }
 823                 break;
 824
 825         case TCODE_READB:
 826                 length = data[3] >> 16;
 827                 PREP_REPLY_PACKET(length);
 828
 829                 addr = (((u64)(data[1] & 0xffff)) << 32) | data[2];
 830                 rcode = highlevel_read(host, source, packet->data, addr,
 831                                        length, flags);
 832
 833                 if (rcode >= 0) {
 834                         fill_async_readblock_resp(packet, rcode, length);
 835                         send_packet_nocare(packet);
 836                 } else {
 837                         hpsb_free_packet(packet);
 838                 }
 839                 break;
 840
 841         case TCODE_LOCK_REQUEST:
 842                 length = data[3] >> 16;
 843                 extcode = data[3] & 0xffff;
 844                 addr = (((u64)(data[1] & 0xffff)) << 32) | data[2];
 845
 846                 PREP_REPLY_PACKET(8);
 847
 848                 if ((extcode == 0) || (extcode >= 7)) {
 849                         /* let switch default handle error */
 850                         length = 0;
 851                 }
 852
 853                 switch (length) {
 854                 case 4:
 855                         rcode = highlevel_lock(host, source, packet->data, addr,
 856                                                data[4], 0, extcode,flags);
 857                         fill_async_lock_resp(packet, rcode, extcode, 4);
 858                         break;
 859                 case 8:
 860                         if ((extcode != EXTCODE_FETCH_ADD)
 861                             && (extcode != EXTCODE_LITTLE_ADD)) {
 862                                 rcode = highlevel_lock(host, source,
 863                                                        packet->data, addr,
 864                                                        data[5], data[4],
 865                                                        extcode, flags);
 866                                 fill_async_lock_resp(packet, rcode, extcode, 4);
 867                         } else {
 868                                 rcode = highlevel_lock64(host, source,
 869                                              (octlet_t *)packet->data, addr,
 870                                              *(octlet_t *)(data + 4), 0ULL,
 871                                              extcode, flags);
 872                                 fill_async_lock_resp(packet, rcode, extcode, 8);
 873                         }
 874                         break;
 875                 case 16:
 876                         rcode = highlevel_lock64(host, source,
 877                                                  (octlet_t *)packet->data, addr,
 878                                                  *(octlet_t *)(data + 6),
 879                                                  *(octlet_t *)(data + 4),
 880                                                  extcode, flags);
 881                         fill_async_lock_resp(packet, rcode, extcode, 8);
 882                         break;
 883                 default:
 884                         rcode = RCODE_TYPE_ERROR;
 885                         fill_async_lock_resp(packet, rcode,
 886                                              extcode, 0);
 887                 }
 888
 889                 if (rcode >= 0) {
 890                         send_packet_nocare(packet);
 891                 } else {
 892                         hpsb_free_packet(packet);
 893                 }
 894                 break;
 895         }
 896
 897 }
 898 #undef PREP_REPLY_PACKET
 899
 900
 901 void hpsb_packet_received(struct hpsb_host *host, quadlet_t *data, size_t size,
 902                           int write_acked)
 903 {
 904         int tcode;
 905
 906         if (host->in_bus_reset) {
 907                 HPSB_INFO("received packet during reset; ignoring");
 908                 return;
 909         }
 910
 911         dump_packet("received packet", data, size, -1);
 912
 913         tcode = (data[0] >> 4) & 0xf;
 914
 915         switch (tcode) {
 916         case TCODE_WRITE_RESPONSE:
 917         case TCODE_READQ_RESPONSE:
 918         case TCODE_READB_RESPONSE:
 919         case TCODE_LOCK_RESPONSE:
 920                 handle_packet_response(host, tcode, data, size);
 921                 break;
 922
 923         case TCODE_WRITEQ:
 924         case TCODE_WRITEB:
 925         case TCODE_READQ:
 926         case TCODE_READB:
 927         case TCODE_LOCK_REQUEST:
 928                 handle_incoming_packet(host, tcode, data, size, write_acked);
 929                 break;
 930
 931
 932         case TCODE_ISO_DATA:
 933                 highlevel_iso_receive(host, data, size);
 934                 break;
 935
 936         case TCODE_CYCLE_START:
 937                 /* simply ignore this packet if it is passed on */
 938                 break;
 939
 940         default:
 941                 HPSB_NOTICE("received packet with bogus transaction code %d",
 942                             tcode);
 943                 break;
 944         }
 945 }
 946
 947
 948 static void abort_requests(struct hpsb_host *host)
 949 {
 950         struct hpsb_packet *packet;
 951         struct sk_buff *skb;
 952
 953         host->driver->devctl(host, CANCEL_REQUESTS, 0);
 954
 955         while ((skb = skb_dequeue(&host->pending_packet_queue)) != NULL) {
 956                 packet = (struct hpsb_packet *)skb->data;
 957
 958                 packet->state = hpsb_complete;
 959                 packet->ack_code = ACKX_ABORTED;
 960                 queue_packet_complete(packet);
 961         }
 962 }
 963
 964 void abort_timedouts(unsigned long __opaque)
 965 {
 966         struct hpsb_host *host = (struct hpsb_host *)__opaque;
 967         unsigned long flags;
 968         struct hpsb_packet *packet;
 969         struct sk_buff *skb;
 970         unsigned long expire;
 971
 972         spin_lock_irqsave(&host->csr.lock, flags);
 973         expire = host->csr.expire;
 974         spin_unlock_irqrestore(&host->csr.lock, flags);
 975
 976         /* Hold the lock around this, since we aren't dequeuing all
 977          * packets, just ones we need. */
 978         spin_lock_irqsave(&host->pending_packet_queue.lock, flags);
 979
 980         while (!skb_queue_empty(&host->pending_packet_queue)) {
 981                 skb = skb_peek(&host->pending_packet_queue);
 982
 983                 packet = (struct hpsb_packet *)skb->data;
 984
 985                 if (time_before(packet->sendtime + expire, jiffies)) {
 986                         __skb_unlink(skb, &host->pending_packet_queue);
 987                         packet->state = hpsb_complete;
 988                         packet->ack_code = ACKX_TIMEOUT;
 989                         queue_packet_complete(packet);
 990                 } else {
 991                         /* Since packets are added to the tail, the oldest
 992                          * ones are first, always. When we get to one that
 993                          * isn't timed out, the rest aren't either. */
 994                         break;
 995                 }
 996         }
 997
 998         if (!skb_queue_empty(&host->pending_packet_queue))
 999                 mod_timer(&host->timeout, jiffies + host->timeout_interval);
1000
1001         spin_unlock_irqrestore(&host->pending_packet_queue.lock, flags);
1002 }
1003
1004
1005 /* Kernel thread and vars, which handles packets that are completed. Only
1006  * packets that have a "complete" function are sent here. This way, the
1007  * completion is run out of kernel context, and doesn't block the rest of
1008  * the stack. */
1009 static int khpsbpkt_pid = -1, khpsbpkt_kill;
1010 static DECLARE_COMPLETION(khpsbpkt_complete);
1011 static struct sk_buff_head hpsbpkt_queue;
1012 static DECLARE_MUTEX_LOCKED(khpsbpkt_sig);
1013
1014
1015 static void queue_packet_complete(struct hpsb_packet *packet)
1016 {
1017         if (packet->no_waiter) {
1018                 hpsb_free_packet(packet);
1019                 return;
1020         }
1021         if (packet->complete_routine != NULL) {
1022                 skb_queue_tail(&hpsbpkt_queue, packet->skb);
1023
1024                 /* Signal the kernel thread to handle this */
1025                 up(&khpsbpkt_sig);
1026         }
1027         return;
1028 }
1029
1030 static int hpsbpkt_thread(void *__hi)
1031 {
1032         struct sk_buff *skb;
1033         struct hpsb_packet *packet;
1034         void (*complete_routine)(void*);
1035         void *complete_data;
1036
1037         daemonize("khpsbpkt");
1038
1039         while (1) {
1040                 if (down_interruptible(&khpsbpkt_sig)) {
1041                         if (try_to_freeze())
1042                                 continue;
1043                         printk("khpsbpkt: received unexpected signal?!\n" );
1044                         break;
1045                 }
1046
1047                 if (khpsbpkt_kill)
1048                         break;
1049
1050                 while ((skb = skb_dequeue(&hpsbpkt_queue)) != NULL) {
1051                         packet = (struct hpsb_packet *)skb->data;
1052
1053                         complete_routine = packet->complete_routine;
1054                         complete_data = packet->complete_data;
1055
1056                         packet->complete_routine = packet->complete_data = NULL;
1057
1058                         complete_routine(complete_data);
1059                 }
1060         }
1061
1062         complete_and_exit(&khpsbpkt_complete, 0);
1063 }
1064
1065 static int __init ieee1394_init(void)
1066 {
1067         int i, ret;
1068
1069         skb_queue_head_init(&hpsbpkt_queue);
1070
1071         /* non-fatal error */
1072         if (hpsb_init_config_roms()) {
1073                 HPSB_ERR("Failed to initialize some config rom entries.\n");
1074                 HPSB_ERR("Some features may not be available\n");
1075         }
1076
1077         khpsbpkt_pid = kernel_thread(hpsbpkt_thread, NULL, CLONE_KERNEL);
1078         if (khpsbpkt_pid < 0) {
1079                 HPSB_ERR("Failed to start hpsbpkt thread!\n");
1080                 ret = -ENOMEM;
1081                 goto exit_cleanup_config_roms;
1082         }
1083
1084         if (register_chrdev_region(IEEE1394_CORE_DEV, 256, "ieee1394")) {
1085                 HPSB_ERR("unable to register character device major %d!\n", IEEE1394_MAJOR);
1086                 ret = -ENODEV;
1087                 goto exit_release_kernel_thread;
1088         }
1089
1090         /* actually this is a non-fatal error */
1091         ret = devfs_mk_dir("ieee1394");
1092         if (ret < 0) {
1093                 HPSB_ERR("unable to make devfs dir for device major %d!\n", IEEE1394_MAJOR);
1094                 goto release_chrdev;
1095         }
1096
1097         ret = bus_register(&ieee1394_bus_type);
1098         if (ret < 0) {
1099                 HPSB_INFO("bus register failed");
1100                 goto release_devfs;
1101         }
1102
1103         for (i = 0; fw_bus_attrs[i]; i++) {
1104                 ret = bus_create_file(&ieee1394_bus_type, fw_bus_attrs[i]);
1105                 if (ret < 0) {
1106                         while (i >= 0) {
1107                                 bus_remove_file(&ieee1394_bus_type,
1108                                                 fw_bus_attrs[i--]);
1109                         }
1110                         bus_unregister(&ieee1394_bus_type);
1111                         goto release_devfs;
1112                 }
1113         }
1114
1115         ret = class_register(&hpsb_host_class);
1116         if (ret < 0)
1117                 goto release_all_bus;
1118
1119         hpsb_protocol_class = class_create(THIS_MODULE, "ieee1394_protocol");
1120         if (IS_ERR(hpsb_protocol_class)) {
1121                 ret = PTR_ERR(hpsb_protocol_class);
1122                 goto release_class_host;
1123         }
1124
1125         ret = init_csr();
1126         if (ret) {
1127                 HPSB_INFO("init csr failed");
1128                 ret = -ENOMEM;
1129                 goto release_class_protocol;
1130         }
1131
1132         if (disable_nodemgr) {
1133                 HPSB_INFO("nodemgr and IRM functionality disabled");
1134                 /* We shouldn't contend for IRM with nodemgr disabled, since
1135                    nodemgr implements functionality required of ieee1394a-2000
1136                    IRMs */
1137                 hpsb_disable_irm = 1;
1138
1139                 return 0;
1140         }
1141
1142         if (hpsb_disable_irm) {
1143                 HPSB_INFO("IRM functionality disabled");
1144         }
1145
1146         ret = init_ieee1394_nodemgr();
1147         if (ret < 0) {
1148                 HPSB_INFO("init nodemgr failed");
1149                 goto cleanup_csr;
1150         }
1151
1152         return 0;
1153
1154 cleanup_csr:
1155         cleanup_csr();
1156 release_class_protocol:
1157         class_destroy(hpsb_protocol_class);
1158 release_class_host:
1159         class_unregister(&hpsb_host_class);
1160 release_all_bus:
1161         for (i = 0; fw_bus_attrs[i]; i++)
1162                 bus_remove_file(&ieee1394_bus_type, fw_bus_attrs[i]);
1163         bus_unregister(&ieee1394_bus_type);
1164 release_devfs:
1165         devfs_remove("ieee1394");
1166 release_chrdev:
1167         unregister_chrdev_region(IEEE1394_CORE_DEV, 256);
1168 exit_release_kernel_thread:
1169         if (khpsbpkt_pid >= 0) {
1170                 kill_proc(khpsbpkt_pid, SIGTERM, 1);
1171                 wait_for_completion(&khpsbpkt_complete);
1172         }
1173 exit_cleanup_config_roms:
1174         hpsb_cleanup_config_roms();
1175         return ret;
1176 }
1177
1178 static void __exit ieee1394_cleanup(void)
1179 {
1180         int i;
1181
1182         if (!disable_nodemgr)
1183                 cleanup_ieee1394_nodemgr();
1184
1185         cleanup_csr();
1186
1187         class_destroy(hpsb_protocol_class);
1188         class_unregister(&hpsb_host_class);
1189         for (i = 0; fw_bus_attrs[i]; i++)
1190                 bus_remove_file(&ieee1394_bus_type, fw_bus_attrs[i]);
1191         bus_unregister(&ieee1394_bus_type);
1192
1193         if (khpsbpkt_pid >= 0) {
1194                 khpsbpkt_kill = 1;
1195                 mb();
1196                 up(&khpsbpkt_sig);
1197                 wait_for_completion(&khpsbpkt_complete);
1198         }
1199
1200         hpsb_cleanup_config_roms();
1201
1202         unregister_chrdev_region(IEEE1394_CORE_DEV, 256);
1203         devfs_remove("ieee1394");
1204 }
1205
1206 module_init(ieee1394_init);
1207 module_exit(ieee1394_cleanup);
1208
1209 /* Exported symbols */
1210
1211 /** hosts.c **/
1212 EXPORT_SYMBOL(hpsb_alloc_host);
1213 EXPORT_SYMBOL(hpsb_add_host);
1214 EXPORT_SYMBOL(hpsb_remove_host);
1215 EXPORT_SYMBOL(hpsb_update_config_rom_image);
1216
1217 /** ieee1394_core.c **/
1218 EXPORT_SYMBOL(hpsb_speedto_str);
1219 EXPORT_SYMBOL(hpsb_protocol_class);
1220 EXPORT_SYMBOL(hpsb_set_packet_complete_task);
1221 EXPORT_SYMBOL(hpsb_alloc_packet);
1222 EXPORT_SYMBOL(hpsb_free_packet);
1223 EXPORT_SYMBOL(hpsb_send_packet);
1224 EXPORT_SYMBOL(hpsb_reset_bus);
1225 EXPORT_SYMBOL(hpsb_bus_reset);
1226 EXPORT_SYMBOL(hpsb_selfid_received);
1227 EXPORT_SYMBOL(hpsb_selfid_complete);
1228 EXPORT_SYMBOL(hpsb_packet_sent);
1229 EXPORT_SYMBOL(hpsb_packet_received);
1230 EXPORT_SYMBOL_GPL(hpsb_disable_irm);
1231 #ifdef CONFIG_IEEE1394_EXPORT_FULL_API
1232 EXPORT_SYMBOL(hpsb_send_phy_config);
1233 EXPORT_SYMBOL(hpsb_send_packet_and_wait);
1234 #endif
1235
1236 /** ieee1394_transactions.c **/
1237 EXPORT_SYMBOL(hpsb_get_tlabel);
1238 EXPORT_SYMBOL(hpsb_free_tlabel);
1239 EXPORT_SYMBOL(hpsb_make_readpacket);
1240 EXPORT_SYMBOL(hpsb_make_writepacket);
1241 EXPORT_SYMBOL(hpsb_make_streampacket);
1242 EXPORT_SYMBOL(hpsb_make_lockpacket);
1243 EXPORT_SYMBOL(hpsb_make_lock64packet);
1244 EXPORT_SYMBOL(hpsb_make_phypacket);
1245 EXPORT_SYMBOL(hpsb_make_isopacket);
1246 EXPORT_SYMBOL(hpsb_read);
1247 EXPORT_SYMBOL(hpsb_write);
1248 EXPORT_SYMBOL(hpsb_packet_success);
1249
1250 /** highlevel.c **/
1251 EXPORT_SYMBOL(hpsb_register_highlevel);
1252 EXPORT_SYMBOL(hpsb_unregister_highlevel);
1253 EXPORT_SYMBOL(hpsb_register_addrspace);
1254 EXPORT_SYMBOL(hpsb_unregister_addrspace);
1255 EXPORT_SYMBOL(hpsb_allocate_and_register_addrspace);
1256 EXPORT_SYMBOL(hpsb_listen_channel);
1257 EXPORT_SYMBOL(hpsb_unlisten_channel);
1258 EXPORT_SYMBOL(hpsb_get_hostinfo);
1259 EXPORT_SYMBOL(hpsb_create_hostinfo);
1260 EXPORT_SYMBOL(hpsb_destroy_hostinfo);
1261 EXPORT_SYMBOL(hpsb_set_hostinfo_key);
1262 EXPORT_SYMBOL(hpsb_get_hostinfo_bykey);
1263 EXPORT_SYMBOL(hpsb_set_hostinfo);
1264 EXPORT_SYMBOL(highlevel_host_reset);
1265 #ifdef CONFIG_IEEE1394_EXPORT_FULL_API
1266 EXPORT_SYMBOL(highlevel_add_host);
1267 EXPORT_SYMBOL(highlevel_remove_host);
1268 #endif
1269
1270 /** nodemgr.c **/
1271 EXPORT_SYMBOL(hpsb_node_fill_packet);
1272 EXPORT_SYMBOL(hpsb_node_write);
1273 EXPORT_SYMBOL(hpsb_register_protocol);
1274 EXPORT_SYMBOL(hpsb_unregister_protocol);
1275 EXPORT_SYMBOL(ieee1394_bus_type);
1276 #ifdef CONFIG_IEEE1394_EXPORT_FULL_API
1277 EXPORT_SYMBOL(nodemgr_for_each_host);
1278 #endif
1279
1280 /** csr.c **/
1281 EXPORT_SYMBOL(hpsb_update_config_rom);
1282
1283 /** dma.c **/
1284 EXPORT_SYMBOL(dma_prog_region_init);
1285 EXPORT_SYMBOL(dma_prog_region_alloc);
1286 EXPORT_SYMBOL(dma_prog_region_free);
1287 EXPORT_SYMBOL(dma_region_init);
1288 EXPORT_SYMBOL(dma_region_alloc);
1289 EXPORT_SYMBOL(dma_region_free);
1290 EXPORT_SYMBOL(dma_region_sync_for_cpu);
1291 EXPORT_SYMBOL(dma_region_sync_for_device);
1292 EXPORT_SYMBOL(dma_region_mmap);
1293 EXPORT_SYMBOL(dma_region_offset_to_bus);
1294
1295 /** iso.c **/
1296 EXPORT_SYMBOL(hpsb_iso_xmit_init);
1297 EXPORT_SYMBOL(hpsb_iso_recv_init);
1298 EXPORT_SYMBOL(hpsb_iso_xmit_start);
1299 EXPORT_SYMBOL(hpsb_iso_recv_start);
1300 EXPORT_SYMBOL(hpsb_iso_recv_listen_channel);
1301 EXPORT_SYMBOL(hpsb_iso_recv_unlisten_channel);
1302 EXPORT_SYMBOL(hpsb_iso_recv_set_channel_mask);
1303 EXPORT_SYMBOL(hpsb_iso_stop);
1304 EXPORT_SYMBOL(hpsb_iso_shutdown);
1305 EXPORT_SYMBOL(hpsb_iso_xmit_queue_packet);
1306 EXPORT_SYMBOL(hpsb_iso_xmit_sync);
1307 EXPORT_SYMBOL(hpsb_iso_recv_release_packets);
1308 EXPORT_SYMBOL(hpsb_iso_n_ready);
1309 EXPORT_SYMBOL(hpsb_iso_packet_sent);
1310 EXPORT_SYMBOL(hpsb_iso_packet_received);
1311 EXPORT_SYMBOL(hpsb_iso_wake);
1312 EXPORT_SYMBOL(hpsb_iso_recv_flush);
1313
1314 /** csr1212.c **/
1315 EXPORT_SYMBOL(csr1212_new_directory);
1316 EXPORT_SYMBOL(csr1212_attach_keyval_to_directory);
1317 EXPORT_SYMBOL(csr1212_detach_keyval_from_directory);
1318 EXPORT_SYMBOL(csr1212_release_keyval);
1319 EXPORT_SYMBOL(csr1212_read);
1320 EXPORT_SYMBOL(csr1212_parse_keyval);
1321 EXPORT_SYMBOL(_csr1212_read_keyval);
1322 EXPORT_SYMBOL(_csr1212_destroy_keyval);
1323 #ifdef CONFIG_IEEE1394_EXPORT_FULL_API
1324 EXPORT_SYMBOL(csr1212_create_csr);
1325 EXPORT_SYMBOL(csr1212_init_local_csr);
1326 EXPORT_SYMBOL(csr1212_new_immediate);
1327 EXPORT_SYMBOL(csr1212_associate_keyval);
1328 EXPORT_SYMBOL(csr1212_new_string_descriptor_leaf);
1329 EXPORT_SYMBOL(csr1212_destroy_csr);
1330 EXPORT_SYMBOL(csr1212_generate_csr_image);
1331 EXPORT_SYMBOL(csr1212_parse_csr);
1332 #endif