drivers/bluetooth/btmrvl_main.c

   1 /**
   2  * Marvell Bluetooth driver
   3  *
   4  * Copyright (C) 2009, Marvell International Ltd.
   5  *
   6  * This software file (the "File") is distributed by Marvell International
   7  * Ltd. under the terms of the GNU General Public License Version 2, June 1991
   8  * (the "License").  You may use, redistribute and/or modify this File in
   9  * accordance with the terms and conditions of the License, a copy of which
  10  * is available by writing to the Free Software Foundation, Inc.,
  11  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
  12  * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
  13  *
  14  *
  15  * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
  17  * ARE EXPRESSLY DISCLAIMED.  The License provides additional details about
  18  * this warranty disclaimer.
  19  **/
  20
  21 #include <net/bluetooth/bluetooth.h>
  22 #include <net/bluetooth/hci_core.h>
  23
  24 #include "btmrvl_drv.h"
  25
  26 #define VERSION "1.0"
  27
  28 /*
  29  * This function is called by interface specific interrupt handler.
  30  * It updates Power Save & Host Sleep states, and wakes up the main
  31  * thread.
  32  */
  33 void btmrvl_interrupt(struct btmrvl_private *priv)
  34 {
  35         priv->adapter->ps_state = PS_AWAKE;
  36
  37         priv->adapter->wakeup_tries = 0;
  38
  39         priv->adapter->int_count++;
  40
  41         wake_up_interruptible(&priv->main_thread.wait_q);
  42 }
  43 EXPORT_SYMBOL_GPL(btmrvl_interrupt);
  44
  45 void btmrvl_check_evtpkt(struct btmrvl_private *priv, struct sk_buff *skb)
  46 {
  47         struct hci_event_hdr *hdr = (void *) skb->data;
  48         struct hci_ev_cmd_complete *ec;
  49         u16 opcode, ocf;
  50
  51         if (hdr->evt == HCI_EV_CMD_COMPLETE) {
  52                 ec = (void *) (skb->data + HCI_EVENT_HDR_SIZE);
  53                 opcode = __le16_to_cpu(ec->opcode);
  54                 ocf = hci_opcode_ocf(opcode);
  55                 if (ocf == BT_CMD_MODULE_CFG_REQ &&
  56                                         priv->btmrvl_dev.sendcmdflag) {
  57                         priv->btmrvl_dev.sendcmdflag = false;
  58                         priv->adapter->cmd_complete = true;
  59                         wake_up_interruptible(&priv->adapter->cmd_wait_q);
  60                 }
  61         }
  62 }
  63 EXPORT_SYMBOL_GPL(btmrvl_check_evtpkt);
  64
  65 int btmrvl_process_event(struct btmrvl_private *priv, struct sk_buff *skb)
  66 {
  67         struct btmrvl_adapter *adapter = priv->adapter;
  68         struct btmrvl_event *event;
  69         int ret = 0;
  70
  71         event = (struct btmrvl_event *) skb->data;
  72         if (event->ec != 0xff) {
  73                 BT_DBG("Not Marvell Event=%x", event->ec);
  74                 ret = -EINVAL;
  75                 goto exit;
  76         }
  77
  78         switch (event->data[0]) {
  79         case BT_CMD_AUTO_SLEEP_MODE:
  80                 if (!event->data[2]) {
  81                         if (event->data[1] == BT_PS_ENABLE)
  82                                 adapter->psmode = 1;
  83                         else
  84                                 adapter->psmode = 0;
  85                         BT_DBG("PS Mode:%s",
  86                                 (adapter->psmode) ? "Enable" : "Disable");
  87                 } else {
  88                         BT_DBG("PS Mode command failed");
  89                 }
  90                 break;
  91
  92         case BT_CMD_HOST_SLEEP_CONFIG:
  93                 if (!event->data[3])
  94                         BT_DBG("gpio=%x, gap=%x", event->data[1],
  95                                                         event->data[2]);
  96                 else
  97                         BT_DBG("HSCFG command failed");
  98                 break;
  99
 100         case BT_CMD_HOST_SLEEP_ENABLE:
 101                 if (!event->data[1]) {
 102                         adapter->hs_state = HS_ACTIVATED;
 103                         if (adapter->psmode)
 104                                 adapter->ps_state = PS_SLEEP;
 105                         wake_up_interruptible(&adapter->cmd_wait_q);
 106                         BT_DBG("HS ACTIVATED!");
 107                 } else {
 108                         BT_DBG("HS Enable failed");
 109                 }
 110                 break;
 111
 112         case BT_CMD_MODULE_CFG_REQ:
 113                 if (priv->btmrvl_dev.sendcmdflag &&
 114                                 event->data[1] == MODULE_BRINGUP_REQ) {
 115                         BT_DBG("EVENT:%s",
 116                                 ((event->data[2] == MODULE_BROUGHT_UP) ||
 117                                 (event->data[2] == MODULE_ALREADY_UP)) ?
 118                                 "Bring-up succeed" : "Bring-up failed");
 119                 } else if (priv->btmrvl_dev.sendcmdflag &&
 120                                 event->data[1] == MODULE_SHUTDOWN_REQ) {
 121                         BT_DBG("EVENT:%s", (event->data[2]) ?
 122                                 "Shutdown failed" : "Shutdown succeed");
 123                 } else {
 124                         BT_DBG("BT_CMD_MODULE_CFG_REQ resp for APP");
 125                         ret = -EINVAL;
 126                 }
 127                 break;
 128
 129         case BT_EVENT_POWER_STATE:
 130                 if (event->data[1] == BT_PS_SLEEP)
 131                         adapter->ps_state = PS_SLEEP;
 132                 BT_DBG("EVENT:%s",
 133                         (adapter->ps_state) ? "PS_SLEEP" : "PS_AWAKE");
 134                 break;
 135
 136         default:
 137                 BT_DBG("Unknown Event=%d", event->data[0]);
 138                 ret = -EINVAL;
 139                 break;
 140         }
 141
 142 exit:
 143         if (!ret)
 144                 kfree_skb(skb);
 145
 146         return ret;
 147 }
 148 EXPORT_SYMBOL_GPL(btmrvl_process_event);
 149
 150 int btmrvl_send_module_cfg_cmd(struct btmrvl_private *priv, int subcmd)
 151 {
 152         struct sk_buff *skb;
 153         struct btmrvl_cmd *cmd;
 154         int ret = 0;
 155
 156         skb = bt_skb_alloc(sizeof(*cmd), GFP_ATOMIC);
 157         if (skb == NULL) {
 158                 BT_ERR("No free skb");
 159                 return -ENOMEM;
 160         }
 161
 162         cmd = (struct btmrvl_cmd *) skb_put(skb, sizeof(*cmd));
 163         cmd->ocf_ogf = cpu_to_le16(hci_opcode_pack(OGF, BT_CMD_MODULE_CFG_REQ));
 164         cmd->length = 1;
 165         cmd->data[0] = subcmd;
 166
 167         bt_cb(skb)->pkt_type = MRVL_VENDOR_PKT;
 168
 169         skb->dev = (void *) priv->btmrvl_dev.hcidev;
 170         skb_queue_head(&priv->adapter->tx_queue, skb);
 171
 172         priv->btmrvl_dev.sendcmdflag = true;
 173
 174         priv->adapter->cmd_complete = false;
 175
 176         BT_DBG("Queue module cfg Command");
 177
 178         wake_up_interruptible(&priv->main_thread.wait_q);
 179
 180         if (!wait_event_interruptible_timeout(priv->adapter->cmd_wait_q,
 181                                 priv->adapter->cmd_complete,
 182                                 msecs_to_jiffies(WAIT_UNTIL_CMD_RESP))) {
 183                 ret = -ETIMEDOUT;
 184                 BT_ERR("module_cfg_cmd(%x): timeout: %d",
 185                                         subcmd, priv->btmrvl_dev.sendcmdflag);
 186         }
 187
 188         BT_DBG("module cfg Command done");
 189
 190         return ret;
 191 }
 192 EXPORT_SYMBOL_GPL(btmrvl_send_module_cfg_cmd);
 193
 194 int btmrvl_enable_ps(struct btmrvl_private *priv)
 195 {
 196         struct sk_buff *skb;
 197         struct btmrvl_cmd *cmd;
 198
 199         skb = bt_skb_alloc(sizeof(*cmd), GFP_ATOMIC);
 200         if (skb == NULL) {
 201                 BT_ERR("No free skb");
 202                 return -ENOMEM;
 203         }
 204
 205         cmd = (struct btmrvl_cmd *) skb_put(skb, sizeof(*cmd));
 206         cmd->ocf_ogf = cpu_to_le16(hci_opcode_pack(OGF,
 207                                         BT_CMD_AUTO_SLEEP_MODE));
 208         cmd->length = 1;
 209
 210         if (priv->btmrvl_dev.psmode)
 211                 cmd->data[0] = BT_PS_ENABLE;
 212         else
 213                 cmd->data[0] = BT_PS_DISABLE;
 214
 215         bt_cb(skb)->pkt_type = MRVL_VENDOR_PKT;
 216
 217         skb->dev = (void *) priv->btmrvl_dev.hcidev;
 218         skb_queue_head(&priv->adapter->tx_queue, skb);
 219
 220         BT_DBG("Queue PSMODE Command:%d", cmd->data[0]);
 221
 222         return 0;
 223 }
 224 EXPORT_SYMBOL_GPL(btmrvl_enable_ps);
 225
 226 static int btmrvl_enable_hs(struct btmrvl_private *priv)
 227 {
 228         struct sk_buff *skb;
 229         struct btmrvl_cmd *cmd;
 230         int ret = 0;
 231
 232         skb = bt_skb_alloc(sizeof(*cmd), GFP_ATOMIC);
 233         if (skb == NULL) {
 234                 BT_ERR("No free skb");
 235                 return -ENOMEM;
 236         }
 237
 238         cmd = (struct btmrvl_cmd *) skb_put(skb, sizeof(*cmd));
 239         cmd->ocf_ogf = cpu_to_le16(hci_opcode_pack(OGF, BT_CMD_HOST_SLEEP_ENABLE));
 240         cmd->length = 0;
 241
 242         bt_cb(skb)->pkt_type = MRVL_VENDOR_PKT;
 243
 244         skb->dev = (void *) priv->btmrvl_dev.hcidev;
 245         skb_queue_head(&priv->adapter->tx_queue, skb);
 246
 247         BT_DBG("Queue hs enable Command");
 248
 249         wake_up_interruptible(&priv->main_thread.wait_q);
 250
 251         if (!wait_event_interruptible_timeout(priv->adapter->cmd_wait_q,
 252                         priv->adapter->hs_state,
 253                         msecs_to_jiffies(WAIT_UNTIL_HS_STATE_CHANGED))) {
 254                 ret = -ETIMEDOUT;
 255                 BT_ERR("timeout: %d, %d,%d", priv->adapter->hs_state,
 256                                                 priv->adapter->ps_state,
 257                                                 priv->adapter->wakeup_tries);
 258         }
 259
 260         return ret;
 261 }
 262
 263 int btmrvl_prepare_command(struct btmrvl_private *priv)
 264 {
 265         struct sk_buff *skb = NULL;
 266         struct btmrvl_cmd *cmd;
 267         int ret = 0;
 268
 269         if (priv->btmrvl_dev.hscfgcmd) {
 270                 priv->btmrvl_dev.hscfgcmd = 0;
 271
 272                 skb = bt_skb_alloc(sizeof(*cmd), GFP_ATOMIC);
 273                 if (skb == NULL) {
 274                         BT_ERR("No free skb");
 275                         return -ENOMEM;
 276                 }
 277
 278                 cmd = (struct btmrvl_cmd *) skb_put(skb, sizeof(*cmd));
 279                 cmd->ocf_ogf = cpu_to_le16(hci_opcode_pack(OGF, BT_CMD_HOST_SLEEP_CONFIG));
 280                 cmd->length = 2;
 281                 cmd->data[0] = (priv->btmrvl_dev.gpio_gap & 0xff00) >> 8;
 282                 cmd->data[1] = (u8) (priv->btmrvl_dev.gpio_gap & 0x00ff);
 283
 284                 bt_cb(skb)->pkt_type = MRVL_VENDOR_PKT;
 285
 286                 skb->dev = (void *) priv->btmrvl_dev.hcidev;
 287                 skb_queue_head(&priv->adapter->tx_queue, skb);
 288
 289                 BT_DBG("Queue HSCFG Command, gpio=0x%x, gap=0x%x",
 290                                                 cmd->data[0], cmd->data[1]);
 291         }
 292
 293         if (priv->btmrvl_dev.pscmd) {
 294                 priv->btmrvl_dev.pscmd = 0;
 295                 btmrvl_enable_ps(priv);
 296         }
 297
 298         if (priv->btmrvl_dev.hscmd) {
 299                 priv->btmrvl_dev.hscmd = 0;
 300
 301                 if (priv->btmrvl_dev.hsmode) {
 302                         ret = btmrvl_enable_hs(priv);
 303                 } else {
 304                         ret = priv->hw_wakeup_firmware(priv);
 305                         priv->adapter->hs_state = HS_DEACTIVATED;
 306                 }
 307         }
 308
 309         return ret;
 310 }
 311
 312 static int btmrvl_tx_pkt(struct btmrvl_private *priv, struct sk_buff *skb)
 313 {
 314         int ret = 0;
 315
 316         if (!skb || !skb->data)
 317                 return -EINVAL;
 318
 319         if (!skb->len || ((skb->len + BTM_HEADER_LEN) > BTM_UPLD_SIZE)) {
 320                 BT_ERR("Tx Error: Bad skb length %d : %d",
 321                                                 skb->len, BTM_UPLD_SIZE);
 322                 return -EINVAL;
 323         }
 324
 325         if (skb_headroom(skb) < BTM_HEADER_LEN) {
 326                 struct sk_buff *tmp = skb;
 327
 328                 skb = skb_realloc_headroom(skb, BTM_HEADER_LEN);
 329                 if (!skb) {
 330                         BT_ERR("Tx Error: realloc_headroom failed %d",
 331                                 BTM_HEADER_LEN);
 332                         skb = tmp;
 333                         return -EINVAL;
 334                 }
 335
 336                 kfree_skb(tmp);
 337         }
 338
 339         skb_push(skb, BTM_HEADER_LEN);
 340
 341         /* header type: byte[3]
 342          * HCI_COMMAND = 1, ACL_DATA = 2, SCO_DATA = 3, 0xFE = Vendor
 343          * header length: byte[2][1][0]
 344          */
 345
 346         skb->data[0] = (skb->len & 0x0000ff);
 347         skb->data[1] = (skb->len & 0x00ff00) >> 8;
 348         skb->data[2] = (skb->len & 0xff0000) >> 16;
 349         skb->data[3] = bt_cb(skb)->pkt_type;
 350
 351         if (priv->hw_host_to_card)
 352                 ret = priv->hw_host_to_card(priv, skb->data, skb->len);
 353
 354         return ret;
 355 }
 356
 357 static void btmrvl_init_adapter(struct btmrvl_private *priv)
 358 {
 359         skb_queue_head_init(&priv->adapter->tx_queue);
 360
 361         priv->adapter->ps_state = PS_AWAKE;
 362
 363         init_waitqueue_head(&priv->adapter->cmd_wait_q);
 364 }
 365
 366 static void btmrvl_free_adapter(struct btmrvl_private *priv)
 367 {
 368         skb_queue_purge(&priv->adapter->tx_queue);
 369
 370         kfree(priv->adapter);
 371
 372         priv->adapter = NULL;
 373 }
 374
 375 static int btmrvl_ioctl(struct hci_dev *hdev,
 376                                 unsigned int cmd, unsigned long arg)
 377 {
 378         return -ENOIOCTLCMD;
 379 }
 380
 381 static void btmrvl_destruct(struct hci_dev *hdev)
 382 {
 383 }
 384
 385 static int btmrvl_send_frame(struct sk_buff *skb)
 386 {
 387         struct hci_dev *hdev = (struct hci_dev *) skb->dev;
 388         struct btmrvl_private *priv = NULL;
 389
 390         BT_DBG("type=%d, len=%d", skb->pkt_type, skb->len);
 391
 392         if (!hdev || !hdev->driver_data) {
 393                 BT_ERR("Frame for unknown HCI device");
 394                 return -ENODEV;
 395         }
 396
 397         priv = (struct btmrvl_private *) hdev->driver_data;
 398         if (!test_bit(HCI_RUNNING, &hdev->flags)) {
 399                 BT_ERR("Failed testing HCI_RUNING, flags=%lx", hdev->flags);
 400                 print_hex_dump_bytes("data: ", DUMP_PREFIX_OFFSET,
 401                                                         skb->data, skb->len);
 402                 return -EBUSY;
 403         }
 404
 405         switch (bt_cb(skb)->pkt_type) {
 406         case HCI_COMMAND_PKT:
 407                 hdev->stat.cmd_tx++;
 408                 break;
 409
 410         case HCI_ACLDATA_PKT:
 411                 hdev->stat.acl_tx++;
 412                 break;
 413
 414         case HCI_SCODATA_PKT:
 415                 hdev->stat.sco_tx++;
 416                 break;
 417         }
 418
 419         skb_queue_tail(&priv->adapter->tx_queue, skb);
 420
 421         wake_up_interruptible(&priv->main_thread.wait_q);
 422
 423         return 0;
 424 }
 425
 426 static int btmrvl_flush(struct hci_dev *hdev)
 427 {
 428         struct btmrvl_private *priv = hdev->driver_data;
 429
 430         skb_queue_purge(&priv->adapter->tx_queue);
 431
 432         return 0;
 433 }
 434
 435 static int btmrvl_close(struct hci_dev *hdev)
 436 {
 437         struct btmrvl_private *priv = hdev->driver_data;
 438
 439         if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
 440                 return 0;
 441
 442         skb_queue_purge(&priv->adapter->tx_queue);
 443
 444         return 0;
 445 }
 446
 447 static int btmrvl_open(struct hci_dev *hdev)
 448 {
 449         set_bit(HCI_RUNNING, &hdev->flags);
 450
 451         return 0;
 452 }
 453
 454 /*
 455  * This function handles the event generated by firmware, rx data
 456  * received from firmware, and tx data sent from kernel.
 457  */
 458 static int btmrvl_service_main_thread(void *data)
 459 {
 460         struct btmrvl_thread *thread = data;
 461         struct btmrvl_private *priv = thread->priv;
 462         struct btmrvl_adapter *adapter = priv->adapter;
 463         wait_queue_t wait;
 464         struct sk_buff *skb;
 465         ulong flags;
 466
 467         init_waitqueue_entry(&wait, current);
 468
 469         current->flags |= PF_NOFREEZE;
 470
 471         for (;;) {
 472                 add_wait_queue(&thread->wait_q, &wait);
 473
 474                 set_current_state(TASK_INTERRUPTIBLE);
 475
 476                 if (adapter->wakeup_tries ||
 477                                 ((!adapter->int_count) &&
 478                                 (!priv->btmrvl_dev.tx_dnld_rdy ||
 479                                 skb_queue_empty(&adapter->tx_queue)))) {
 480                         BT_DBG("main_thread is sleeping...");
 481                         schedule();
 482                 }
 483
 484                 set_current_state(TASK_RUNNING);
 485
 486                 remove_wait_queue(&thread->wait_q, &wait);
 487
 488                 BT_DBG("main_thread woke up");
 489
 490                 if (kthread_should_stop()) {
 491                         BT_DBG("main_thread: break from main thread");
 492                         break;
 493                 }
 494
 495                 spin_lock_irqsave(&priv->driver_lock, flags);
 496                 if (adapter->int_count) {
 497                         adapter->int_count = 0;
 498                 } else if (adapter->ps_state == PS_SLEEP &&
 499                                         !skb_queue_empty(&adapter->tx_queue)) {
 500                         spin_unlock_irqrestore(&priv->driver_lock, flags);
 501                         adapter->wakeup_tries++;
 502                         priv->hw_wakeup_firmware(priv);
 503                         continue;
 504                 }
 505                 spin_unlock_irqrestore(&priv->driver_lock, flags);
 506
 507                 if (adapter->ps_state == PS_SLEEP)
 508                         continue;
 509
 510                 if (!priv->btmrvl_dev.tx_dnld_rdy)
 511                         continue;
 512
 513                 skb = skb_dequeue(&adapter->tx_queue);
 514                 if (skb) {
 515                         if (btmrvl_tx_pkt(priv, skb))
 516                                 priv->btmrvl_dev.hcidev->stat.err_tx++;
 517                         else
 518                                 priv->btmrvl_dev.hcidev->stat.byte_tx += skb->len;
 519
 520                         kfree_skb(skb);
 521                 }
 522         }
 523
 524         return 0;
 525 }
 526
 527 struct btmrvl_private *btmrvl_add_card(void *card)
 528 {
 529         struct hci_dev *hdev = NULL;
 530         struct btmrvl_private *priv;
 531         int ret;
 532
 533         priv = kzalloc(sizeof(*priv), GFP_KERNEL);
 534         if (!priv) {
 535                 BT_ERR("Can not allocate priv");
 536                 goto err_priv;
 537         }
 538
 539         priv->adapter = kzalloc(sizeof(*priv->adapter), GFP_KERNEL);
 540         if (!priv->adapter) {
 541                 BT_ERR("Allocate buffer for btmrvl_adapter failed!");
 542                 goto err_adapter;
 543         }
 544
 545         btmrvl_init_adapter(priv);
 546
 547         hdev = hci_alloc_dev();
 548         if (!hdev) {
 549                 BT_ERR("Can not allocate HCI device");
 550                 goto err_hdev;
 551         }
 552
 553         BT_DBG("Starting kthread...");
 554         priv->main_thread.priv = priv;
 555         spin_lock_init(&priv->driver_lock);
 556
 557         init_waitqueue_head(&priv->main_thread.wait_q);
 558         priv->main_thread.task = kthread_run(btmrvl_service_main_thread,
 559                                 &priv->main_thread, "btmrvl_main_service");
 560
 561         priv->btmrvl_dev.hcidev = hdev;
 562         priv->btmrvl_dev.card = card;
 563
 564         hdev->driver_data = priv;
 565
 566         priv->btmrvl_dev.tx_dnld_rdy = true;
 567
 568         hdev->bus = HCI_SDIO;
 569         hdev->open = btmrvl_open;
 570         hdev->close = btmrvl_close;
 571         hdev->flush = btmrvl_flush;
 572         hdev->send = btmrvl_send_frame;
 573         hdev->destruct = btmrvl_destruct;
 574         hdev->ioctl = btmrvl_ioctl;
 575         hdev->owner = THIS_MODULE;
 576
 577         ret = hci_register_dev(hdev);
 578         if (ret < 0) {
 579                 BT_ERR("Can not register HCI device");
 580                 goto err_hci_register_dev;
 581         }
 582
 583 #ifdef CONFIG_DEBUG_FS
 584         btmrvl_debugfs_init(hdev);
 585 #endif
 586
 587         return priv;
 588
 589 err_hci_register_dev:
 590         /* Stop the thread servicing the interrupts */
 591         kthread_stop(priv->main_thread.task);
 592
 593         hci_free_dev(hdev);
 594
 595 err_hdev:
 596         btmrvl_free_adapter(priv);
 597
 598 err_adapter:
 599         kfree(priv);
 600
 601 err_priv:
 602         return NULL;
 603 }
 604 EXPORT_SYMBOL_GPL(btmrvl_add_card);
 605
 606 int btmrvl_remove_card(struct btmrvl_private *priv)
 607 {
 608         struct hci_dev *hdev;
 609
 610         hdev = priv->btmrvl_dev.hcidev;
 611
 612         wake_up_interruptible(&priv->adapter->cmd_wait_q);
 613
 614         kthread_stop(priv->main_thread.task);
 615
 616 #ifdef CONFIG_DEBUG_FS
 617         btmrvl_debugfs_remove(hdev);
 618 #endif
 619
 620         hci_unregister_dev(hdev);
 621
 622         hci_free_dev(hdev);
 623
 624         priv->btmrvl_dev.hcidev = NULL;
 625
 626         btmrvl_free_adapter(priv);
 627
 628         kfree(priv);
 629
 630         return 0;
 631 }
 632 EXPORT_SYMBOL_GPL(btmrvl_remove_card);
 633
 634 MODULE_AUTHOR("Marvell International Ltd.");
 635 MODULE_DESCRIPTION("Marvell Bluetooth driver ver " VERSION);
 636 MODULE_VERSION(VERSION);
 637 MODULE_LICENSE("GPL v2");