2 * Copyright (C) 2008, cozybit Inc.
3 * Copyright (C) 2003-2006, Marvell International Ltd.
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or (at
8 * your option) any later version.
10 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
12 #include <linux/hardirq.h>
13 #include <linux/slab.h>
15 #include <linux/etherdevice.h>
16 #include <linux/module.h>
17 #include "libertas_tf.h"
19 /* thinfirm version: 5.132.X.pX */
20 #define LBTF_FW_VER_MIN 0x05840300
21 #define LBTF_FW_VER_MAX 0x0584ffff
22 #define QOS_CONTROL_LEN 2
24 /* Module parameters */
25 unsigned int lbtf_debug;
26 EXPORT_SYMBOL_GPL(lbtf_debug);
27 module_param_named(libertas_tf_debug, lbtf_debug, int, 0644);
29 struct workqueue_struct *lbtf_wq;
31 static const struct ieee80211_channel lbtf_channels[] = {
32 { .center_freq = 2412, .hw_value = 1 },
33 { .center_freq = 2417, .hw_value = 2 },
34 { .center_freq = 2422, .hw_value = 3 },
35 { .center_freq = 2427, .hw_value = 4 },
36 { .center_freq = 2432, .hw_value = 5 },
37 { .center_freq = 2437, .hw_value = 6 },
38 { .center_freq = 2442, .hw_value = 7 },
39 { .center_freq = 2447, .hw_value = 8 },
40 { .center_freq = 2452, .hw_value = 9 },
41 { .center_freq = 2457, .hw_value = 10 },
42 { .center_freq = 2462, .hw_value = 11 },
43 { .center_freq = 2467, .hw_value = 12 },
44 { .center_freq = 2472, .hw_value = 13 },
45 { .center_freq = 2484, .hw_value = 14 },
48 /* This table contains the hardware specific values for the modulation rates. */
49 static const struct ieee80211_rate lbtf_rates[] = {
54 .flags = IEEE80211_RATE_SHORT_PREAMBLE },
57 .flags = IEEE80211_RATE_SHORT_PREAMBLE },
60 .flags = IEEE80211_RATE_SHORT_PREAMBLE },
87 static void lbtf_cmd_work(struct work_struct *work)
89 struct lbtf_private *priv = container_of(work, struct lbtf_private,
92 lbtf_deb_enter(LBTF_DEB_CMD);
94 spin_lock_irq(&priv->driver_lock);
95 /* command response? */
96 if (priv->cmd_response_rxed) {
97 priv->cmd_response_rxed = 0;
98 spin_unlock_irq(&priv->driver_lock);
99 lbtf_process_rx_command(priv);
100 spin_lock_irq(&priv->driver_lock);
103 if (priv->cmd_timed_out && priv->cur_cmd) {
104 struct cmd_ctrl_node *cmdnode = priv->cur_cmd;
106 if (++priv->nr_retries > 10) {
107 lbtf_complete_command(priv, cmdnode,
109 priv->nr_retries = 0;
111 priv->cur_cmd = NULL;
113 /* Stick it back at the _top_ of the pending
114 * queue for immediate resubmission */
115 list_add(&cmdnode->list, &priv->cmdpendingq);
118 priv->cmd_timed_out = 0;
119 spin_unlock_irq(&priv->driver_lock);
121 if (!priv->fw_ready) {
122 lbtf_deb_leave_args(LBTF_DEB_CMD, "fw not ready");
126 /* Execute the next command */
128 lbtf_execute_next_command(priv);
130 lbtf_deb_leave(LBTF_DEB_CMD);
134 * lbtf_setup_firmware: initialize firmware.
136 * @priv A pointer to struct lbtf_private structure
138 * Returns: 0 on success.
140 static int lbtf_setup_firmware(struct lbtf_private *priv)
144 lbtf_deb_enter(LBTF_DEB_FW);
146 * Read priv address from HW
148 eth_broadcast_addr(priv->current_addr);
149 ret = lbtf_update_hw_spec(priv);
155 lbtf_set_mac_control(priv);
156 lbtf_set_radio_control(priv);
160 lbtf_deb_leave_args(LBTF_DEB_FW, "ret: %d", ret);
165 * This function handles the timeout of command sending.
166 * It will re-send the same command again.
168 static void command_timer_fn(struct timer_list *t)
170 struct lbtf_private *priv = from_timer(priv, t, command_timer);
172 lbtf_deb_enter(LBTF_DEB_CMD);
174 spin_lock_irqsave(&priv->driver_lock, flags);
176 if (!priv->cur_cmd) {
177 printk(KERN_DEBUG "libertastf: command timer expired; "
178 "no pending command\n");
182 printk(KERN_DEBUG "libertas: command %x timed out\n",
183 le16_to_cpu(priv->cur_cmd->cmdbuf->command));
185 priv->cmd_timed_out = 1;
186 queue_work(lbtf_wq, &priv->cmd_work);
188 spin_unlock_irqrestore(&priv->driver_lock, flags);
189 lbtf_deb_leave(LBTF_DEB_CMD);
192 static int lbtf_init_adapter(struct lbtf_private *priv)
194 lbtf_deb_enter(LBTF_DEB_MAIN);
195 eth_broadcast_addr(priv->current_addr);
196 mutex_init(&priv->lock);
199 timer_setup(&priv->command_timer, command_timer_fn, 0);
201 INIT_LIST_HEAD(&priv->cmdfreeq);
202 INIT_LIST_HEAD(&priv->cmdpendingq);
204 spin_lock_init(&priv->driver_lock);
206 /* Allocate the command buffers */
207 if (lbtf_allocate_cmd_buffer(priv))
210 lbtf_deb_leave(LBTF_DEB_MAIN);
214 static void lbtf_free_adapter(struct lbtf_private *priv)
216 lbtf_deb_enter(LBTF_DEB_MAIN);
217 lbtf_free_cmd_buffer(priv);
218 del_timer(&priv->command_timer);
219 lbtf_deb_leave(LBTF_DEB_MAIN);
222 static void lbtf_op_tx(struct ieee80211_hw *hw,
223 struct ieee80211_tx_control *control,
226 struct lbtf_private *priv = hw->priv;
228 priv->skb_to_tx = skb;
229 queue_work(lbtf_wq, &priv->tx_work);
231 * queue will be restarted when we receive transmission feedback if
232 * there are no buffered multicast frames to send
234 ieee80211_stop_queues(priv->hw);
237 static void lbtf_tx_work(struct work_struct *work)
239 struct lbtf_private *priv = container_of(work, struct lbtf_private,
242 struct ieee80211_tx_info *info;
244 struct sk_buff *skb = NULL;
247 lbtf_deb_enter(LBTF_DEB_MACOPS | LBTF_DEB_TX);
249 if ((priv->vif->type == NL80211_IFTYPE_AP) &&
250 (!skb_queue_empty(&priv->bc_ps_buf)))
251 skb = skb_dequeue(&priv->bc_ps_buf);
252 else if (priv->skb_to_tx) {
253 skb = priv->skb_to_tx;
254 priv->skb_to_tx = NULL;
256 lbtf_deb_leave(LBTF_DEB_MACOPS | LBTF_DEB_TX);
261 info = IEEE80211_SKB_CB(skb);
262 txpd = skb_push(skb, sizeof(struct txpd));
264 if (priv->surpriseremoved) {
265 dev_kfree_skb_any(skb);
266 lbtf_deb_leave(LBTF_DEB_MACOPS | LBTF_DEB_TX);
270 memset(txpd, 0, sizeof(struct txpd));
271 /* Activate per-packet rate selection */
272 txpd->tx_control |= cpu_to_le32(MRVL_PER_PACKET_RATE |
273 ieee80211_get_tx_rate(priv->hw, info)->hw_value);
275 /* copy destination address from 802.11 header */
276 memcpy(txpd->tx_dest_addr_high, skb->data + sizeof(struct txpd) + 4,
278 txpd->tx_packet_length = cpu_to_le16(len);
279 txpd->tx_packet_location = cpu_to_le32(sizeof(struct txpd));
280 lbtf_deb_hex(LBTF_DEB_TX, "TX Data", skb->data, min_t(unsigned int, skb->len, 100));
281 BUG_ON(priv->tx_skb);
282 spin_lock_irq(&priv->driver_lock);
284 err = priv->ops->hw_host_to_card(priv, MVMS_DAT, skb->data, skb->len);
285 spin_unlock_irq(&priv->driver_lock);
287 dev_kfree_skb_any(skb);
289 pr_err("TX error: %d", err);
291 lbtf_deb_leave(LBTF_DEB_MACOPS | LBTF_DEB_TX);
294 static int lbtf_op_start(struct ieee80211_hw *hw)
296 struct lbtf_private *priv = hw->priv;
297 void *card = priv->card;
300 lbtf_deb_enter(LBTF_DEB_MACOPS);
303 /* Upload firmware */
304 if (priv->ops->hw_prog_firmware(card))
305 goto err_prog_firmware;
307 /* poke the firmware */
308 priv->capability = WLAN_CAPABILITY_SHORT_PREAMBLE;
309 priv->radioon = RADIO_ON;
310 priv->mac_control = CMD_ACT_MAC_RX_ON | CMD_ACT_MAC_TX_ON;
311 ret = lbtf_setup_firmware(priv);
313 goto err_prog_firmware;
315 if ((priv->fwrelease < LBTF_FW_VER_MIN) ||
316 (priv->fwrelease > LBTF_FW_VER_MAX)) {
318 goto err_prog_firmware;
321 lbtf_deb_leave(LBTF_DEB_MACOPS);
325 priv->ops->hw_reset_device(card);
326 lbtf_deb_leave_args(LBTF_DEB_MACOPS, "error programming fw; ret=%d", ret);
330 static void lbtf_op_stop(struct ieee80211_hw *hw)
332 struct lbtf_private *priv = hw->priv;
336 struct cmd_ctrl_node *cmdnode;
338 lbtf_deb_enter(LBTF_DEB_MACOPS);
340 /* Flush pending command nodes */
341 spin_lock_irqsave(&priv->driver_lock, flags);
342 list_for_each_entry(cmdnode, &priv->cmdpendingq, list) {
343 cmdnode->result = -ENOENT;
344 cmdnode->cmdwaitqwoken = 1;
345 wake_up_interruptible(&cmdnode->cmdwait_q);
348 spin_unlock_irqrestore(&priv->driver_lock, flags);
349 cancel_work_sync(&priv->cmd_work);
350 cancel_work_sync(&priv->tx_work);
351 while ((skb = skb_dequeue(&priv->bc_ps_buf)))
352 dev_kfree_skb_any(skb);
353 priv->radioon = RADIO_OFF;
354 lbtf_set_radio_control(priv);
356 lbtf_deb_leave(LBTF_DEB_MACOPS);
359 static int lbtf_op_add_interface(struct ieee80211_hw *hw,
360 struct ieee80211_vif *vif)
362 struct lbtf_private *priv = hw->priv;
363 lbtf_deb_enter(LBTF_DEB_MACOPS);
364 if (priv->vif != NULL)
369 case NL80211_IFTYPE_MESH_POINT:
370 case NL80211_IFTYPE_AP:
371 lbtf_set_mode(priv, LBTF_AP_MODE);
373 case NL80211_IFTYPE_STATION:
374 lbtf_set_mode(priv, LBTF_STA_MODE);
380 lbtf_set_mac_address(priv, (u8 *) vif->addr);
381 lbtf_deb_leave(LBTF_DEB_MACOPS);
385 static void lbtf_op_remove_interface(struct ieee80211_hw *hw,
386 struct ieee80211_vif *vif)
388 struct lbtf_private *priv = hw->priv;
389 lbtf_deb_enter(LBTF_DEB_MACOPS);
391 if (priv->vif->type == NL80211_IFTYPE_AP ||
392 priv->vif->type == NL80211_IFTYPE_MESH_POINT)
393 lbtf_beacon_ctrl(priv, 0, 0);
394 lbtf_set_mode(priv, LBTF_PASSIVE_MODE);
395 lbtf_set_bssid(priv, 0, NULL);
397 lbtf_deb_leave(LBTF_DEB_MACOPS);
400 static int lbtf_op_config(struct ieee80211_hw *hw, u32 changed)
402 struct lbtf_private *priv = hw->priv;
403 struct ieee80211_conf *conf = &hw->conf;
404 lbtf_deb_enter(LBTF_DEB_MACOPS);
406 if (conf->chandef.chan->center_freq != priv->cur_freq) {
407 priv->cur_freq = conf->chandef.chan->center_freq;
408 lbtf_set_channel(priv, conf->chandef.chan->hw_value);
410 lbtf_deb_leave(LBTF_DEB_MACOPS);
414 static u64 lbtf_op_prepare_multicast(struct ieee80211_hw *hw,
415 struct netdev_hw_addr_list *mc_list)
417 struct lbtf_private *priv = hw->priv;
419 struct netdev_hw_addr *ha;
420 int mc_count = netdev_hw_addr_list_count(mc_list);
422 if (!mc_count || mc_count > MRVDRV_MAX_MULTICAST_LIST_SIZE)
425 priv->nr_of_multicastmacaddr = mc_count;
427 netdev_hw_addr_list_for_each(ha, mc_list)
428 memcpy(&priv->multicastlist[i++], ha->addr, ETH_ALEN);
433 #define SUPPORTED_FIF_FLAGS FIF_ALLMULTI
434 static void lbtf_op_configure_filter(struct ieee80211_hw *hw,
435 unsigned int changed_flags,
436 unsigned int *new_flags,
439 struct lbtf_private *priv = hw->priv;
440 int old_mac_control = priv->mac_control;
442 lbtf_deb_enter(LBTF_DEB_MACOPS);
444 changed_flags &= SUPPORTED_FIF_FLAGS;
445 *new_flags &= SUPPORTED_FIF_FLAGS;
447 if (!changed_flags) {
448 lbtf_deb_leave(LBTF_DEB_MACOPS);
452 priv->mac_control &= ~CMD_ACT_MAC_PROMISCUOUS_ENABLE;
453 if (*new_flags & (FIF_ALLMULTI) ||
454 multicast > MRVDRV_MAX_MULTICAST_LIST_SIZE) {
455 priv->mac_control |= CMD_ACT_MAC_ALL_MULTICAST_ENABLE;
456 priv->mac_control &= ~CMD_ACT_MAC_MULTICAST_ENABLE;
457 } else if (multicast) {
458 priv->mac_control |= CMD_ACT_MAC_MULTICAST_ENABLE;
459 priv->mac_control &= ~CMD_ACT_MAC_ALL_MULTICAST_ENABLE;
460 lbtf_cmd_set_mac_multicast_addr(priv);
462 priv->mac_control &= ~(CMD_ACT_MAC_MULTICAST_ENABLE |
463 CMD_ACT_MAC_ALL_MULTICAST_ENABLE);
464 if (priv->nr_of_multicastmacaddr) {
465 priv->nr_of_multicastmacaddr = 0;
466 lbtf_cmd_set_mac_multicast_addr(priv);
471 if (priv->mac_control != old_mac_control)
472 lbtf_set_mac_control(priv);
474 lbtf_deb_leave(LBTF_DEB_MACOPS);
477 static void lbtf_op_bss_info_changed(struct ieee80211_hw *hw,
478 struct ieee80211_vif *vif,
479 struct ieee80211_bss_conf *bss_conf,
482 struct lbtf_private *priv = hw->priv;
483 struct sk_buff *beacon;
484 lbtf_deb_enter(LBTF_DEB_MACOPS);
486 if (changes & (BSS_CHANGED_BEACON | BSS_CHANGED_BEACON_INT)) {
487 switch (priv->vif->type) {
488 case NL80211_IFTYPE_AP:
489 case NL80211_IFTYPE_MESH_POINT:
490 beacon = ieee80211_beacon_get(hw, vif);
492 lbtf_beacon_set(priv, beacon);
494 lbtf_beacon_ctrl(priv, 1,
495 bss_conf->beacon_int);
503 if (changes & BSS_CHANGED_BSSID) {
504 bool activate = !is_zero_ether_addr(bss_conf->bssid);
505 lbtf_set_bssid(priv, activate, bss_conf->bssid);
508 if (changes & BSS_CHANGED_ERP_PREAMBLE) {
509 if (bss_conf->use_short_preamble)
510 priv->preamble = CMD_TYPE_SHORT_PREAMBLE;
512 priv->preamble = CMD_TYPE_LONG_PREAMBLE;
513 lbtf_set_radio_control(priv);
516 lbtf_deb_leave(LBTF_DEB_MACOPS);
519 static int lbtf_op_get_survey(struct ieee80211_hw *hw, int idx,
520 struct survey_info *survey)
522 struct lbtf_private *priv = hw->priv;
523 struct ieee80211_conf *conf = &hw->conf;
528 survey->channel = conf->chandef.chan;
529 survey->filled = SURVEY_INFO_NOISE_DBM;
530 survey->noise = priv->noise;
535 static const struct ieee80211_ops lbtf_ops = {
537 .start = lbtf_op_start,
538 .stop = lbtf_op_stop,
539 .add_interface = lbtf_op_add_interface,
540 .remove_interface = lbtf_op_remove_interface,
541 .config = lbtf_op_config,
542 .prepare_multicast = lbtf_op_prepare_multicast,
543 .configure_filter = lbtf_op_configure_filter,
544 .bss_info_changed = lbtf_op_bss_info_changed,
545 .get_survey = lbtf_op_get_survey,
548 int lbtf_rx(struct lbtf_private *priv, struct sk_buff *skb)
550 struct ieee80211_rx_status stats;
553 struct ieee80211_hdr *hdr;
555 lbtf_deb_enter(LBTF_DEB_RX);
557 prxpd = (struct rxpd *) skb->data;
559 memset(&stats, 0, sizeof(stats));
560 if (!(prxpd->status & cpu_to_le16(MRVDRV_RXPD_STATUS_OK)))
561 stats.flag |= RX_FLAG_FAILED_FCS_CRC;
562 stats.freq = priv->cur_freq;
563 stats.band = NL80211_BAND_2GHZ;
564 stats.signal = prxpd->snr - prxpd->nf;
565 priv->noise = prxpd->nf;
566 /* Marvell rate index has a hole at value 4 */
567 if (prxpd->rx_rate > 4)
569 stats.rate_idx = prxpd->rx_rate;
570 skb_pull(skb, sizeof(struct rxpd));
572 hdr = (struct ieee80211_hdr *)skb->data;
574 need_padding = ieee80211_is_data_qos(hdr->frame_control);
575 need_padding ^= ieee80211_has_a4(hdr->frame_control);
576 need_padding ^= ieee80211_is_data_qos(hdr->frame_control) &&
577 (*ieee80211_get_qos_ctl(hdr) &
578 IEEE80211_QOS_CTL_A_MSDU_PRESENT);
581 memmove(skb->data + 2, skb->data, skb->len);
585 memcpy(IEEE80211_SKB_RXCB(skb), &stats, sizeof(stats));
587 lbtf_deb_rx("rx data: skb->len-sizeof(RxPd) = %d-%zd = %zd\n",
588 skb->len, sizeof(struct rxpd), skb->len - sizeof(struct rxpd));
589 lbtf_deb_hex(LBTF_DEB_RX, "RX Data", skb->data,
590 min_t(unsigned int, skb->len, 100));
592 ieee80211_rx_irqsafe(priv->hw, skb);
594 lbtf_deb_leave(LBTF_DEB_RX);
597 EXPORT_SYMBOL_GPL(lbtf_rx);
600 * lbtf_add_card: Add and initialize the card, no fw upload yet.
602 * @card A pointer to card
604 * Returns: pointer to struct lbtf_priv.
606 struct lbtf_private *lbtf_add_card(void *card, struct device *dmdev,
607 const struct lbtf_ops *ops)
609 struct ieee80211_hw *hw;
610 struct lbtf_private *priv = NULL;
612 lbtf_deb_enter(LBTF_DEB_MAIN);
614 hw = ieee80211_alloc_hw(sizeof(struct lbtf_private), &lbtf_ops);
619 if (lbtf_init_adapter(priv))
620 goto err_init_adapter;
628 ieee80211_hw_set(hw, HOST_BROADCAST_PS_BUFFERING);
629 ieee80211_hw_set(hw, SIGNAL_DBM);
630 hw->extra_tx_headroom = sizeof(struct txpd);
631 memcpy(priv->channels, lbtf_channels, sizeof(lbtf_channels));
632 memcpy(priv->rates, lbtf_rates, sizeof(lbtf_rates));
633 priv->band.n_bitrates = ARRAY_SIZE(lbtf_rates);
634 priv->band.bitrates = priv->rates;
635 priv->band.n_channels = ARRAY_SIZE(lbtf_channels);
636 priv->band.channels = priv->channels;
637 hw->wiphy->bands[NL80211_BAND_2GHZ] = &priv->band;
638 hw->wiphy->interface_modes =
639 BIT(NL80211_IFTYPE_STATION) |
640 BIT(NL80211_IFTYPE_ADHOC);
641 skb_queue_head_init(&priv->bc_ps_buf);
643 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_CQM_RSSI_LIST);
645 SET_IEEE80211_DEV(hw, dmdev);
647 INIT_WORK(&priv->cmd_work, lbtf_cmd_work);
648 INIT_WORK(&priv->tx_work, lbtf_tx_work);
649 if (ieee80211_register_hw(hw))
650 goto err_init_adapter;
652 dev_info(dmdev, "libertastf: Marvell WLAN 802.11 thinfirm adapter\n");
656 lbtf_free_adapter(priv);
657 ieee80211_free_hw(hw);
661 lbtf_deb_leave_args(LBTF_DEB_MAIN, "priv %p", priv);
664 EXPORT_SYMBOL_GPL(lbtf_add_card);
667 int lbtf_remove_card(struct lbtf_private *priv)
669 struct ieee80211_hw *hw = priv->hw;
671 lbtf_deb_enter(LBTF_DEB_MAIN);
673 priv->surpriseremoved = 1;
674 del_timer(&priv->command_timer);
675 lbtf_free_adapter(priv);
677 ieee80211_unregister_hw(hw);
678 ieee80211_free_hw(hw);
680 lbtf_deb_leave(LBTF_DEB_MAIN);
683 EXPORT_SYMBOL_GPL(lbtf_remove_card);
685 void lbtf_send_tx_feedback(struct lbtf_private *priv, u8 retrycnt, u8 fail)
687 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(priv->tx_skb);
689 ieee80211_tx_info_clear_status(info);
691 * Commented out, otherwise we never go beyond 1Mbit/s using mac80211
692 * default pid rc algorithm.
694 * info->status.retry_count = MRVL_DEFAULT_RETRIES - retrycnt;
696 if (!(info->flags & IEEE80211_TX_CTL_NO_ACK) && !fail)
697 info->flags |= IEEE80211_TX_STAT_ACK;
698 skb_pull(priv->tx_skb, sizeof(struct txpd));
699 ieee80211_tx_status_irqsafe(priv->hw, priv->tx_skb);
701 if (!priv->skb_to_tx && skb_queue_empty(&priv->bc_ps_buf))
702 ieee80211_wake_queues(priv->hw);
704 queue_work(lbtf_wq, &priv->tx_work);
706 EXPORT_SYMBOL_GPL(lbtf_send_tx_feedback);
708 void lbtf_bcn_sent(struct lbtf_private *priv)
710 struct sk_buff *skb = NULL;
712 if (priv->vif->type != NL80211_IFTYPE_AP)
715 if (skb_queue_empty(&priv->bc_ps_buf)) {
716 bool tx_buff_bc = false;
718 while ((skb = ieee80211_get_buffered_bc(priv->hw, priv->vif))) {
719 skb_queue_tail(&priv->bc_ps_buf, skb);
723 ieee80211_stop_queues(priv->hw);
724 queue_work(lbtf_wq, &priv->tx_work);
728 skb = ieee80211_beacon_get(priv->hw, priv->vif);
731 lbtf_beacon_set(priv, skb);
735 EXPORT_SYMBOL_GPL(lbtf_bcn_sent);
737 static int __init lbtf_init_module(void)
739 lbtf_deb_enter(LBTF_DEB_MAIN);
740 lbtf_wq = alloc_workqueue("libertastf", WQ_MEM_RECLAIM, 0);
741 if (lbtf_wq == NULL) {
742 printk(KERN_ERR "libertastf: couldn't create workqueue\n");
745 lbtf_deb_leave(LBTF_DEB_MAIN);
749 static void __exit lbtf_exit_module(void)
751 lbtf_deb_enter(LBTF_DEB_MAIN);
752 destroy_workqueue(lbtf_wq);
753 lbtf_deb_leave(LBTF_DEB_MAIN);
756 module_init(lbtf_init_module);
757 module_exit(lbtf_exit_module);
759 MODULE_DESCRIPTION("Libertas WLAN Thinfirm Driver Library");
760 MODULE_AUTHOR("Cozybit Inc.");
761 MODULE_LICENSE("GPL");