2 * This file contains the major functions in WLAN
3 * driver. It includes init, exit, open, close and main
7 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
9 #include <linux/module.h>
10 #include <linux/delay.h>
11 #include <linux/etherdevice.h>
12 #include <linux/hardirq.h>
13 #include <linux/netdevice.h>
14 #include <linux/if_arp.h>
15 #include <linux/kthread.h>
16 #include <linux/kfifo.h>
17 #include <linux/slab.h>
18 #include <net/cfg80211.h>
28 #define DRIVER_RELEASE_VERSION "323.p0"
29 const char lbs_driver_version
[] = "COMM-USB8388-" DRIVER_RELEASE_VERSION
36 /* Module parameters */
37 unsigned int lbs_debug
;
38 EXPORT_SYMBOL_GPL(lbs_debug
);
39 module_param_named(libertas_debug
, lbs_debug
, int, 0644);
41 unsigned int lbs_disablemesh
;
42 EXPORT_SYMBOL_GPL(lbs_disablemesh
);
43 module_param_named(libertas_disablemesh
, lbs_disablemesh
, int, 0644);
47 * This global structure is used to send the confirm_sleep command as
48 * fast as possible down to the firmware.
50 struct cmd_confirm_sleep confirm_sleep
;
54 * the table to keep region code
56 u16 lbs_region_code_to_index
[MRVDRV_MAX_REGION_CODE
] =
57 { 0x10, 0x20, 0x30, 0x31, 0x32, 0x40 };
60 * FW rate table. FW refers to rates by their index in this table, not by the
61 * rate value itself. Values of 0x00 are
64 static u8 fw_data_rates
[MAX_RATES
] =
65 { 0x02, 0x04, 0x0B, 0x16, 0x00, 0x0C, 0x12,
66 0x18, 0x24, 0x30, 0x48, 0x60, 0x6C, 0x00
70 * lbs_fw_index_to_data_rate - use index to get the data rate
72 * @idx: The index of data rate
73 * returns: data rate or 0
75 u32
lbs_fw_index_to_data_rate(u8 idx
)
77 if (idx
>= sizeof(fw_data_rates
))
79 return fw_data_rates
[idx
];
83 * lbs_data_rate_to_fw_index - use rate to get the index
88 u8
lbs_data_rate_to_fw_index(u32 rate
)
95 for (i
= 0; i
< sizeof(fw_data_rates
); i
++) {
96 if (rate
== fw_data_rates
[i
])
102 int lbs_set_iface_type(struct lbs_private
*priv
, enum nl80211_iftype type
)
107 case NL80211_IFTYPE_MONITOR
:
108 ret
= lbs_set_monitor_mode(priv
, 1);
110 case NL80211_IFTYPE_STATION
:
111 if (priv
->wdev
->iftype
== NL80211_IFTYPE_MONITOR
)
112 ret
= lbs_set_monitor_mode(priv
, 0);
114 ret
= lbs_set_snmp_mib(priv
, SNMP_MIB_OID_BSS_TYPE
, 1);
116 case NL80211_IFTYPE_ADHOC
:
117 if (priv
->wdev
->iftype
== NL80211_IFTYPE_MONITOR
)
118 ret
= lbs_set_monitor_mode(priv
, 0);
120 ret
= lbs_set_snmp_mib(priv
, SNMP_MIB_OID_BSS_TYPE
, 2);
128 int lbs_start_iface(struct lbs_private
*priv
)
130 struct cmd_ds_802_11_mac_address cmd
;
133 if (priv
->power_restore
) {
134 ret
= priv
->power_restore(priv
);
139 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
));
140 cmd
.action
= cpu_to_le16(CMD_ACT_SET
);
141 memcpy(cmd
.macadd
, priv
->current_addr
, ETH_ALEN
);
143 ret
= lbs_cmd_with_response(priv
, CMD_802_11_MAC_ADDRESS
, &cmd
);
145 lbs_deb_net("set MAC address failed\n");
149 ret
= lbs_set_iface_type(priv
, priv
->wdev
->iftype
);
151 lbs_deb_net("set iface type failed\n");
155 ret
= lbs_set_11d_domain_info(priv
);
157 lbs_deb_net("set 11d domain info failed\n");
161 lbs_update_channel(priv
);
163 priv
->iface_running
= true;
167 if (priv
->power_save
)
168 priv
->power_save(priv
);
173 * lbs_dev_open - open the ethX interface
175 * @dev: A pointer to &net_device structure
176 * returns: 0 or -EBUSY if monitor mode active
178 static int lbs_dev_open(struct net_device
*dev
)
180 struct lbs_private
*priv
= dev
->ml_priv
;
183 if (!priv
->iface_running
) {
184 ret
= lbs_start_iface(priv
);
189 spin_lock_irq(&priv
->driver_lock
);
191 netif_carrier_off(dev
);
193 if (!priv
->tx_pending_len
)
194 netif_wake_queue(dev
);
196 spin_unlock_irq(&priv
->driver_lock
);
202 static bool lbs_command_queue_empty(struct lbs_private
*priv
)
206 spin_lock_irqsave(&priv
->driver_lock
, flags
);
207 ret
= priv
->cur_cmd
== NULL
&& list_empty(&priv
->cmdpendingq
);
208 spin_unlock_irqrestore(&priv
->driver_lock
, flags
);
212 int lbs_stop_iface(struct lbs_private
*priv
)
217 spin_lock_irqsave(&priv
->driver_lock
, flags
);
218 priv
->iface_running
= false;
219 kfree_skb(priv
->currenttxskb
);
220 priv
->currenttxskb
= NULL
;
221 priv
->tx_pending_len
= 0;
222 spin_unlock_irqrestore(&priv
->driver_lock
, flags
);
224 cancel_work_sync(&priv
->mcast_work
);
225 del_timer_sync(&priv
->tx_lockup_timer
);
227 /* Disable command processing, and wait for all commands to complete */
228 lbs_deb_main("waiting for commands to complete\n");
229 wait_event(priv
->waitq
, lbs_command_queue_empty(priv
));
230 lbs_deb_main("all commands completed\n");
232 if (priv
->power_save
)
233 ret
= priv
->power_save(priv
);
239 * lbs_eth_stop - close the ethX interface
241 * @dev: A pointer to &net_device structure
244 static int lbs_eth_stop(struct net_device
*dev
)
246 struct lbs_private
*priv
= dev
->ml_priv
;
248 if (priv
->connect_status
== LBS_CONNECTED
)
249 lbs_disconnect(priv
, WLAN_REASON_DEAUTH_LEAVING
);
251 spin_lock_irq(&priv
->driver_lock
);
252 netif_stop_queue(dev
);
253 spin_unlock_irq(&priv
->driver_lock
);
255 lbs_update_mcast(priv
);
256 cancel_delayed_work_sync(&priv
->scan_work
);
260 netif_carrier_off(priv
->dev
);
262 if (!lbs_iface_active(priv
))
263 lbs_stop_iface(priv
);
268 void lbs_host_to_card_done(struct lbs_private
*priv
)
272 spin_lock_irqsave(&priv
->driver_lock
, flags
);
273 del_timer(&priv
->tx_lockup_timer
);
275 priv
->dnld_sent
= DNLD_RES_RECEIVED
;
277 /* Wake main thread if commands are pending */
278 if (!priv
->cur_cmd
|| priv
->tx_pending_len
> 0) {
279 if (!priv
->wakeup_dev_required
)
280 wake_up(&priv
->waitq
);
283 spin_unlock_irqrestore(&priv
->driver_lock
, flags
);
285 EXPORT_SYMBOL_GPL(lbs_host_to_card_done
);
287 int lbs_set_mac_address(struct net_device
*dev
, void *addr
)
290 struct lbs_private
*priv
= dev
->ml_priv
;
291 struct sockaddr
*phwaddr
= addr
;
294 * Can only set MAC address when all interfaces are down, to be written
295 * to the hardware when one of them is brought up.
297 if (lbs_iface_active(priv
))
300 /* In case it was called from the mesh device */
303 memcpy(priv
->current_addr
, phwaddr
->sa_data
, ETH_ALEN
);
304 memcpy(dev
->dev_addr
, phwaddr
->sa_data
, ETH_ALEN
);
306 memcpy(priv
->mesh_dev
->dev_addr
, phwaddr
->sa_data
, ETH_ALEN
);
312 static inline int mac_in_list(unsigned char *list
, int list_len
,
316 if (!memcmp(list
, mac
, ETH_ALEN
))
325 static int lbs_add_mcast_addrs(struct cmd_ds_mac_multicast_adr
*cmd
,
326 struct net_device
*dev
, int nr_addrs
)
329 struct netdev_hw_addr
*ha
;
332 if ((dev
->flags
& (IFF_UP
|IFF_MULTICAST
)) != (IFF_UP
|IFF_MULTICAST
))
335 netif_addr_lock_bh(dev
);
336 cnt
= netdev_mc_count(dev
);
337 netdev_for_each_mc_addr(ha
, dev
) {
338 if (mac_in_list(cmd
->maclist
, nr_addrs
, ha
->addr
)) {
339 lbs_deb_net("mcast address %s:%pM skipped\n", dev
->name
,
345 if (i
== MRVDRV_MAX_MULTICAST_LIST_SIZE
)
347 memcpy(&cmd
->maclist
[6*i
], ha
->addr
, ETH_ALEN
);
348 lbs_deb_net("mcast address %s:%pM added to filter\n", dev
->name
,
353 netif_addr_unlock_bh(dev
);
360 void lbs_update_mcast(struct lbs_private
*priv
)
362 struct cmd_ds_mac_multicast_adr mcast_cmd
;
365 int old_mac_control
= priv
->mac_control
;
367 if (netif_running(priv
->dev
))
368 dev_flags
|= priv
->dev
->flags
;
369 if (priv
->mesh_dev
&& netif_running(priv
->mesh_dev
))
370 dev_flags
|= priv
->mesh_dev
->flags
;
372 if (dev_flags
& IFF_PROMISC
) {
373 priv
->mac_control
|= CMD_ACT_MAC_PROMISCUOUS_ENABLE
;
374 priv
->mac_control
&= ~(CMD_ACT_MAC_ALL_MULTICAST_ENABLE
|
375 CMD_ACT_MAC_MULTICAST_ENABLE
);
376 goto out_set_mac_control
;
377 } else if (dev_flags
& IFF_ALLMULTI
) {
379 priv
->mac_control
|= CMD_ACT_MAC_ALL_MULTICAST_ENABLE
;
380 priv
->mac_control
&= ~(CMD_ACT_MAC_PROMISCUOUS_ENABLE
|
381 CMD_ACT_MAC_MULTICAST_ENABLE
);
382 goto out_set_mac_control
;
385 /* Once for priv->dev, again for priv->mesh_dev if it exists */
386 nr_addrs
= lbs_add_mcast_addrs(&mcast_cmd
, priv
->dev
, 0);
387 if (nr_addrs
>= 0 && priv
->mesh_dev
)
388 nr_addrs
= lbs_add_mcast_addrs(&mcast_cmd
, priv
->mesh_dev
, nr_addrs
);
393 int size
= offsetof(struct cmd_ds_mac_multicast_adr
,
394 maclist
[6*nr_addrs
]);
396 mcast_cmd
.action
= cpu_to_le16(CMD_ACT_SET
);
397 mcast_cmd
.hdr
.size
= cpu_to_le16(size
);
398 mcast_cmd
.nr_of_adrs
= cpu_to_le16(nr_addrs
);
400 lbs_cmd_async(priv
, CMD_MAC_MULTICAST_ADR
, &mcast_cmd
.hdr
, size
);
402 priv
->mac_control
|= CMD_ACT_MAC_MULTICAST_ENABLE
;
404 priv
->mac_control
&= ~CMD_ACT_MAC_MULTICAST_ENABLE
;
406 priv
->mac_control
&= ~(CMD_ACT_MAC_PROMISCUOUS_ENABLE
|
407 CMD_ACT_MAC_ALL_MULTICAST_ENABLE
);
409 if (priv
->mac_control
!= old_mac_control
)
410 lbs_set_mac_control(priv
);
413 static void lbs_set_mcast_worker(struct work_struct
*work
)
415 struct lbs_private
*priv
= container_of(work
, struct lbs_private
, mcast_work
);
416 lbs_update_mcast(priv
);
419 void lbs_set_multicast_list(struct net_device
*dev
)
421 struct lbs_private
*priv
= dev
->ml_priv
;
423 schedule_work(&priv
->mcast_work
);
427 * lbs_thread - handles the major jobs in the LBS driver.
428 * It handles all events generated by firmware, RX data received
429 * from firmware and TX data sent from kernel.
431 * @data: A pointer to &lbs_thread structure
434 static int lbs_thread(void *data
)
436 struct net_device
*dev
= data
;
437 struct lbs_private
*priv
= dev
->ml_priv
;
438 wait_queue_entry_t wait
;
440 init_waitqueue_entry(&wait
, current
);
446 lbs_deb_thread("1: currenttxskb %p, dnld_sent %d\n",
447 priv
->currenttxskb
, priv
->dnld_sent
);
449 add_wait_queue(&priv
->waitq
, &wait
);
450 set_current_state(TASK_INTERRUPTIBLE
);
451 spin_lock_irq(&priv
->driver_lock
);
453 if (kthread_should_stop())
454 shouldsleep
= 0; /* Bye */
455 else if (priv
->surpriseremoved
)
456 shouldsleep
= 1; /* We need to wait until we're _told_ to die */
457 else if (priv
->psstate
== PS_STATE_SLEEP
)
458 shouldsleep
= 1; /* Sleep mode. Nothing we can do till it wakes */
459 else if (priv
->cmd_timed_out
)
460 shouldsleep
= 0; /* Command timed out. Recover */
461 else if (!priv
->fw_ready
)
462 shouldsleep
= 1; /* Firmware not ready. We're waiting for it */
463 else if (priv
->dnld_sent
)
464 shouldsleep
= 1; /* Something is en route to the device already */
465 else if (priv
->tx_pending_len
> 0)
466 shouldsleep
= 0; /* We've a packet to send */
467 else if (priv
->resp_len
[priv
->resp_idx
])
468 shouldsleep
= 0; /* We have a command response */
469 else if (priv
->cur_cmd
)
470 shouldsleep
= 1; /* Can't send a command; one already running */
471 else if (!list_empty(&priv
->cmdpendingq
) &&
472 !(priv
->wakeup_dev_required
))
473 shouldsleep
= 0; /* We have a command to send */
474 else if (kfifo_len(&priv
->event_fifo
))
475 shouldsleep
= 0; /* We have an event to process */
477 shouldsleep
= 1; /* No command */
480 lbs_deb_thread("sleeping, connect_status %d, "
481 "psmode %d, psstate %d\n",
482 priv
->connect_status
,
483 priv
->psmode
, priv
->psstate
);
484 spin_unlock_irq(&priv
->driver_lock
);
487 spin_unlock_irq(&priv
->driver_lock
);
489 lbs_deb_thread("2: currenttxskb %p, dnld_send %d\n",
490 priv
->currenttxskb
, priv
->dnld_sent
);
492 set_current_state(TASK_RUNNING
);
493 remove_wait_queue(&priv
->waitq
, &wait
);
495 lbs_deb_thread("3: currenttxskb %p, dnld_sent %d\n",
496 priv
->currenttxskb
, priv
->dnld_sent
);
498 if (kthread_should_stop()) {
499 lbs_deb_thread("break from main thread\n");
503 if (priv
->surpriseremoved
) {
504 lbs_deb_thread("adapter removed; waiting to die...\n");
508 lbs_deb_thread("4: currenttxskb %p, dnld_sent %d\n",
509 priv
->currenttxskb
, priv
->dnld_sent
);
511 /* Process any pending command response */
512 spin_lock_irq(&priv
->driver_lock
);
513 resp_idx
= priv
->resp_idx
;
514 if (priv
->resp_len
[resp_idx
]) {
515 spin_unlock_irq(&priv
->driver_lock
);
516 lbs_process_command_response(priv
,
517 priv
->resp_buf
[resp_idx
],
518 priv
->resp_len
[resp_idx
]);
519 spin_lock_irq(&priv
->driver_lock
);
520 priv
->resp_len
[resp_idx
] = 0;
522 spin_unlock_irq(&priv
->driver_lock
);
524 /* Process hardware events, e.g. card removed, link lost */
525 spin_lock_irq(&priv
->driver_lock
);
526 while (kfifo_len(&priv
->event_fifo
)) {
529 if (kfifo_out(&priv
->event_fifo
,
530 (unsigned char *) &event
, sizeof(event
)) !=
533 spin_unlock_irq(&priv
->driver_lock
);
534 lbs_process_event(priv
, event
);
535 spin_lock_irq(&priv
->driver_lock
);
537 spin_unlock_irq(&priv
->driver_lock
);
539 if (priv
->wakeup_dev_required
) {
540 lbs_deb_thread("Waking up device...\n");
542 if (priv
->exit_deep_sleep(priv
))
543 lbs_deb_thread("Wakeup device failed\n");
547 /* command timeout stuff */
548 if (priv
->cmd_timed_out
&& priv
->cur_cmd
) {
549 struct cmd_ctrl_node
*cmdnode
= priv
->cur_cmd
;
551 netdev_info(dev
, "Timeout submitting command 0x%04x\n",
552 le16_to_cpu(cmdnode
->cmdbuf
->command
));
553 lbs_complete_command(priv
, cmdnode
, -ETIMEDOUT
);
555 /* Reset card, but only when it isn't in the process
556 * of being shutdown anyway. */
557 if (!dev
->dismantle
&& priv
->reset_card
)
558 priv
->reset_card(priv
);
560 priv
->cmd_timed_out
= 0;
565 /* Check if we need to confirm Sleep Request received previously */
566 if (priv
->psstate
== PS_STATE_PRE_SLEEP
&&
567 !priv
->dnld_sent
&& !priv
->cur_cmd
) {
568 if (priv
->connect_status
== LBS_CONNECTED
) {
569 lbs_deb_thread("pre-sleep, currenttxskb %p, "
570 "dnld_sent %d, cur_cmd %p\n",
571 priv
->currenttxskb
, priv
->dnld_sent
,
574 lbs_ps_confirm_sleep(priv
);
576 /* workaround for firmware sending
577 * deauth/linkloss event immediately
578 * after sleep request; remove this
579 * after firmware fixes it
581 priv
->psstate
= PS_STATE_AWAKE
;
583 "ignore PS_SleepConfirm in non-connected state\n");
587 /* The PS state is changed during processing of Sleep Request
590 if ((priv
->psstate
== PS_STATE_SLEEP
) ||
591 (priv
->psstate
== PS_STATE_PRE_SLEEP
))
594 if (priv
->is_deep_sleep
)
597 /* Execute the next command */
598 if (!priv
->dnld_sent
&& !priv
->cur_cmd
)
599 lbs_execute_next_command(priv
);
601 spin_lock_irq(&priv
->driver_lock
);
602 if (!priv
->dnld_sent
&& priv
->tx_pending_len
> 0) {
603 int ret
= priv
->hw_host_to_card(priv
, MVMS_DAT
,
604 priv
->tx_pending_buf
,
605 priv
->tx_pending_len
);
607 lbs_deb_tx("host_to_card failed %d\n", ret
);
608 priv
->dnld_sent
= DNLD_RES_RECEIVED
;
610 mod_timer(&priv
->tx_lockup_timer
,
613 priv
->tx_pending_len
= 0;
614 if (!priv
->currenttxskb
) {
615 /* We can wake the queues immediately if we aren't
616 waiting for TX feedback */
617 if (priv
->connect_status
== LBS_CONNECTED
)
618 netif_wake_queue(priv
->dev
);
619 if (priv
->mesh_dev
&&
620 netif_running(priv
->mesh_dev
))
621 netif_wake_queue(priv
->mesh_dev
);
624 spin_unlock_irq(&priv
->driver_lock
);
627 del_timer(&priv
->command_timer
);
628 del_timer(&priv
->tx_lockup_timer
);
629 del_timer(&priv
->auto_deepsleep_timer
);
635 * lbs_setup_firmware - gets the HW spec from the firmware and sets
636 * some basic parameters
638 * @priv: A pointer to &struct lbs_private structure
641 static int lbs_setup_firmware(struct lbs_private
*priv
)
644 s16 curlevel
= 0, minlevel
= 0, maxlevel
= 0;
646 /* Read MAC address from firmware */
647 eth_broadcast_addr(priv
->current_addr
);
648 ret
= lbs_update_hw_spec(priv
);
652 /* Read power levels if available */
653 ret
= lbs_get_tx_power(priv
, &curlevel
, &minlevel
, &maxlevel
);
655 priv
->txpower_cur
= curlevel
;
656 priv
->txpower_min
= minlevel
;
657 priv
->txpower_max
= maxlevel
;
660 /* Send cmd to FW to enable 11D function */
661 ret
= lbs_set_snmp_mib(priv
, SNMP_MIB_OID_11D_ENABLE
, 1);
665 ret
= lbs_set_mac_control_sync(priv
);
670 int lbs_suspend(struct lbs_private
*priv
)
674 if (priv
->is_deep_sleep
) {
675 ret
= lbs_set_deep_sleep(priv
, 0);
677 netdev_err(priv
->dev
,
678 "deep sleep cancellation failed: %d\n", ret
);
681 priv
->deep_sleep_required
= 1;
684 ret
= lbs_set_host_sleep(priv
, 1);
686 netif_device_detach(priv
->dev
);
688 netif_device_detach(priv
->mesh_dev
);
692 EXPORT_SYMBOL_GPL(lbs_suspend
);
694 int lbs_resume(struct lbs_private
*priv
)
698 ret
= lbs_set_host_sleep(priv
, 0);
700 netif_device_attach(priv
->dev
);
702 netif_device_attach(priv
->mesh_dev
);
704 if (priv
->deep_sleep_required
) {
705 priv
->deep_sleep_required
= 0;
706 ret
= lbs_set_deep_sleep(priv
, 1);
708 netdev_err(priv
->dev
,
709 "deep sleep activation failed: %d\n", ret
);
712 if (priv
->setup_fw_on_resume
)
713 ret
= lbs_setup_firmware(priv
);
717 EXPORT_SYMBOL_GPL(lbs_resume
);
720 * lbs_cmd_timeout_handler - handles the timeout of command sending.
721 * It will re-send the same command again.
723 * @data: &struct lbs_private pointer
725 static void lbs_cmd_timeout_handler(unsigned long data
)
727 struct lbs_private
*priv
= (struct lbs_private
*)data
;
730 spin_lock_irqsave(&priv
->driver_lock
, flags
);
735 netdev_info(priv
->dev
, "command 0x%04x timed out\n",
736 le16_to_cpu(priv
->cur_cmd
->cmdbuf
->command
));
738 priv
->cmd_timed_out
= 1;
741 * If the device didn't even acknowledge the command, reset the state
742 * so that we don't block all future commands due to this one timeout.
744 if (priv
->dnld_sent
== DNLD_CMD_SENT
)
745 priv
->dnld_sent
= DNLD_RES_RECEIVED
;
747 wake_up(&priv
->waitq
);
749 spin_unlock_irqrestore(&priv
->driver_lock
, flags
);
753 * lbs_tx_lockup_handler - handles the timeout of the passing of TX frames
754 * to the hardware. This is known to frequently happen with SD8686 when
755 * waking up after a Wake-on-WLAN-triggered resume.
757 * @data: &struct lbs_private pointer
759 static void lbs_tx_lockup_handler(unsigned long data
)
761 struct lbs_private
*priv
= (struct lbs_private
*)data
;
764 spin_lock_irqsave(&priv
->driver_lock
, flags
);
766 netdev_info(priv
->dev
, "TX lockup detected\n");
767 if (priv
->reset_card
)
768 priv
->reset_card(priv
);
770 priv
->dnld_sent
= DNLD_RES_RECEIVED
;
771 wake_up_interruptible(&priv
->waitq
);
773 spin_unlock_irqrestore(&priv
->driver_lock
, flags
);
777 * auto_deepsleep_timer_fn - put the device back to deep sleep mode when
778 * timer expires and no activity (command, event, data etc.) is detected.
779 * @data: &struct lbs_private pointer
782 static void auto_deepsleep_timer_fn(unsigned long data
)
784 struct lbs_private
*priv
= (struct lbs_private
*)data
;
786 if (priv
->is_activity_detected
) {
787 priv
->is_activity_detected
= 0;
789 if (priv
->is_auto_deep_sleep_enabled
&&
790 (!priv
->wakeup_dev_required
) &&
791 (priv
->connect_status
!= LBS_CONNECTED
)) {
792 struct cmd_header cmd
;
794 lbs_deb_main("Entering auto deep sleep mode...\n");
795 memset(&cmd
, 0, sizeof(cmd
));
796 cmd
.size
= cpu_to_le16(sizeof(cmd
));
797 lbs_cmd_async(priv
, CMD_802_11_DEEP_SLEEP
, &cmd
,
801 mod_timer(&priv
->auto_deepsleep_timer
, jiffies
+
802 (priv
->auto_deep_sleep_timeout
* HZ
)/1000);
805 int lbs_enter_auto_deep_sleep(struct lbs_private
*priv
)
807 priv
->is_auto_deep_sleep_enabled
= 1;
808 if (priv
->is_deep_sleep
)
809 priv
->wakeup_dev_required
= 1;
810 mod_timer(&priv
->auto_deepsleep_timer
,
811 jiffies
+ (priv
->auto_deep_sleep_timeout
* HZ
)/1000);
816 int lbs_exit_auto_deep_sleep(struct lbs_private
*priv
)
818 priv
->is_auto_deep_sleep_enabled
= 0;
819 priv
->auto_deep_sleep_timeout
= 0;
820 del_timer(&priv
->auto_deepsleep_timer
);
825 static int lbs_init_adapter(struct lbs_private
*priv
)
829 eth_broadcast_addr(priv
->current_addr
);
831 priv
->connect_status
= LBS_DISCONNECTED
;
832 priv
->channel
= DEFAULT_AD_HOC_CHANNEL
;
833 priv
->mac_control
= CMD_ACT_MAC_RX_ON
| CMD_ACT_MAC_TX_ON
;
835 priv
->psmode
= LBS802_11POWERMODECAM
;
836 priv
->psstate
= PS_STATE_FULL_POWER
;
837 priv
->is_deep_sleep
= 0;
838 priv
->is_auto_deep_sleep_enabled
= 0;
839 priv
->deep_sleep_required
= 0;
840 priv
->wakeup_dev_required
= 0;
841 init_waitqueue_head(&priv
->ds_awake_q
);
842 init_waitqueue_head(&priv
->scan_q
);
843 priv
->authtype_auto
= 1;
844 priv
->is_host_sleep_configured
= 0;
845 priv
->is_host_sleep_activated
= 0;
846 init_waitqueue_head(&priv
->host_sleep_q
);
847 init_waitqueue_head(&priv
->fw_waitq
);
848 mutex_init(&priv
->lock
);
850 setup_timer(&priv
->command_timer
, lbs_cmd_timeout_handler
,
851 (unsigned long)priv
);
852 setup_timer(&priv
->tx_lockup_timer
, lbs_tx_lockup_handler
,
853 (unsigned long)priv
);
854 setup_timer(&priv
->auto_deepsleep_timer
, auto_deepsleep_timer_fn
,
855 (unsigned long)priv
);
857 INIT_LIST_HEAD(&priv
->cmdfreeq
);
858 INIT_LIST_HEAD(&priv
->cmdpendingq
);
860 spin_lock_init(&priv
->driver_lock
);
862 /* Allocate the command buffers */
863 if (lbs_allocate_cmd_buffer(priv
)) {
864 pr_err("Out of memory allocating command buffers\n");
869 priv
->resp_len
[0] = priv
->resp_len
[1] = 0;
871 /* Create the event FIFO */
872 ret
= kfifo_alloc(&priv
->event_fifo
, sizeof(u32
) * 16, GFP_KERNEL
);
874 pr_err("Out of memory allocating event FIFO buffer\n");
882 static void lbs_free_adapter(struct lbs_private
*priv
)
884 lbs_free_cmd_buffer(priv
);
885 kfifo_free(&priv
->event_fifo
);
886 del_timer(&priv
->command_timer
);
887 del_timer(&priv
->tx_lockup_timer
);
888 del_timer(&priv
->auto_deepsleep_timer
);
891 static const struct net_device_ops lbs_netdev_ops
= {
892 .ndo_open
= lbs_dev_open
,
893 .ndo_stop
= lbs_eth_stop
,
894 .ndo_start_xmit
= lbs_hard_start_xmit
,
895 .ndo_set_mac_address
= lbs_set_mac_address
,
896 .ndo_set_rx_mode
= lbs_set_multicast_list
,
897 .ndo_validate_addr
= eth_validate_addr
,
901 * lbs_add_card - adds the card. It will probe the
902 * card, allocate the lbs_priv and initialize the device.
904 * @card: A pointer to card
905 * @dmdev: A pointer to &struct device
906 * returns: A pointer to &struct lbs_private structure
908 struct lbs_private
*lbs_add_card(void *card
, struct device
*dmdev
)
910 struct net_device
*dev
;
911 struct wireless_dev
*wdev
;
912 struct lbs_private
*priv
= NULL
;
914 /* Allocate an Ethernet device and register it */
915 wdev
= lbs_cfg_alloc(dmdev
);
917 pr_err("cfg80211 init failed\n");
921 wdev
->iftype
= NL80211_IFTYPE_STATION
;
922 priv
= wdev_priv(wdev
);
925 if (lbs_init_adapter(priv
)) {
926 pr_err("failed to initialize adapter structure\n");
930 dev
= alloc_netdev(0, "wlan%d", NET_NAME_UNKNOWN
, ether_setup
);
932 dev_err(dmdev
, "no memory for network device instance\n");
936 dev
->ieee80211_ptr
= wdev
;
938 SET_NETDEV_DEV(dev
, dmdev
);
942 dev
->netdev_ops
= &lbs_netdev_ops
;
943 dev
->watchdog_timeo
= 5 * HZ
;
944 dev
->ethtool_ops
= &lbs_ethtool_ops
;
945 dev
->flags
|= IFF_BROADCAST
| IFF_MULTICAST
;
949 strcpy(dev
->name
, "wlan%d");
951 lbs_deb_thread("Starting main thread...\n");
952 init_waitqueue_head(&priv
->waitq
);
953 priv
->main_thread
= kthread_run(lbs_thread
, dev
, "lbs_main");
954 if (IS_ERR(priv
->main_thread
)) {
955 lbs_deb_thread("Error creating main thread.\n");
959 priv
->work_thread
= create_singlethread_workqueue("lbs_worker");
960 INIT_WORK(&priv
->mcast_work
, lbs_set_mcast_worker
);
962 priv
->wol_criteria
= EHS_REMOVE_WAKEUP
;
963 priv
->wol_gpio
= 0xff;
965 priv
->ehs_remove_supported
= true;
973 lbs_free_adapter(priv
);
983 EXPORT_SYMBOL_GPL(lbs_add_card
);
986 void lbs_remove_card(struct lbs_private
*priv
)
988 struct net_device
*dev
= priv
->dev
;
990 lbs_remove_mesh(priv
);
992 if (priv
->wiphy_registered
)
993 lbs_scan_deinit(priv
);
995 lbs_wait_for_firmware_load(priv
);
997 /* worker thread destruction blocks on the in-flight command which
998 * should have been cleared already in lbs_stop_card().
1000 lbs_deb_main("destroying worker thread\n");
1001 destroy_workqueue(priv
->work_thread
);
1002 lbs_deb_main("done destroying worker thread\n");
1004 if (priv
->psmode
== LBS802_11POWERMODEMAX_PSP
) {
1005 priv
->psmode
= LBS802_11POWERMODECAM
;
1006 /* no need to wakeup if already woken up,
1007 * on suspend, this exit ps command is not processed
1010 if (priv
->psstate
!= PS_STATE_FULL_POWER
)
1011 lbs_set_ps_mode(priv
, PS_MODE_ACTION_EXIT_PS
, true);
1014 if (priv
->is_deep_sleep
) {
1015 priv
->is_deep_sleep
= 0;
1016 wake_up_interruptible(&priv
->ds_awake_q
);
1019 priv
->is_host_sleep_configured
= 0;
1020 priv
->is_host_sleep_activated
= 0;
1021 wake_up_interruptible(&priv
->host_sleep_q
);
1023 /* Stop the thread servicing the interrupts */
1024 priv
->surpriseremoved
= 1;
1025 kthread_stop(priv
->main_thread
);
1027 lbs_free_adapter(priv
);
1031 EXPORT_SYMBOL_GPL(lbs_remove_card
);
1034 int lbs_rtap_supported(struct lbs_private
*priv
)
1036 if (MRVL_FW_MAJOR_REV(priv
->fwrelease
) == MRVL_FW_V5
)
1039 /* newer firmware use a capability mask */
1040 return ((MRVL_FW_MAJOR_REV(priv
->fwrelease
) >= MRVL_FW_V10
) &&
1041 (priv
->fwcapinfo
& MESH_CAPINFO_ENABLE_MASK
));
1045 int lbs_start_card(struct lbs_private
*priv
)
1047 struct net_device
*dev
= priv
->dev
;
1050 /* poke the firmware */
1051 ret
= lbs_setup_firmware(priv
);
1055 if (!lbs_disablemesh
)
1056 lbs_init_mesh(priv
);
1058 pr_info("%s: mesh disabled\n", dev
->name
);
1060 ret
= lbs_cfg_register(priv
);
1062 pr_err("cannot register device\n");
1066 if (lbs_mesh_activated(priv
))
1067 lbs_start_mesh(priv
);
1069 lbs_debugfs_init_one(priv
, dev
);
1071 netdev_info(dev
, "Marvell WLAN 802.11 adapter\n");
1078 EXPORT_SYMBOL_GPL(lbs_start_card
);
1081 void lbs_stop_card(struct lbs_private
*priv
)
1083 struct net_device
*dev
;
1089 /* If the netdev isn't registered, it means that lbs_start_card() was
1090 * never called so we have nothing to do here. */
1091 if (dev
->reg_state
!= NETREG_REGISTERED
)
1094 netif_stop_queue(dev
);
1095 netif_carrier_off(dev
);
1097 lbs_debugfs_remove_one(priv
);
1098 lbs_deinit_mesh(priv
);
1099 unregister_netdev(dev
);
1101 EXPORT_SYMBOL_GPL(lbs_stop_card
);
1104 void lbs_queue_event(struct lbs_private
*priv
, u32 event
)
1106 unsigned long flags
;
1108 spin_lock_irqsave(&priv
->driver_lock
, flags
);
1110 if (priv
->psstate
== PS_STATE_SLEEP
)
1111 priv
->psstate
= PS_STATE_AWAKE
;
1113 kfifo_in(&priv
->event_fifo
, (unsigned char *) &event
, sizeof(u32
));
1115 wake_up(&priv
->waitq
);
1117 spin_unlock_irqrestore(&priv
->driver_lock
, flags
);
1119 EXPORT_SYMBOL_GPL(lbs_queue_event
);
1121 void lbs_notify_command_response(struct lbs_private
*priv
, u8 resp_idx
)
1123 if (priv
->psstate
== PS_STATE_SLEEP
)
1124 priv
->psstate
= PS_STATE_AWAKE
;
1126 /* Swap buffers by flipping the response index */
1127 BUG_ON(resp_idx
> 1);
1128 priv
->resp_idx
= resp_idx
;
1130 wake_up(&priv
->waitq
);
1132 EXPORT_SYMBOL_GPL(lbs_notify_command_response
);
1134 static int __init
lbs_init_module(void)
1136 memset(&confirm_sleep
, 0, sizeof(confirm_sleep
));
1137 confirm_sleep
.hdr
.command
= cpu_to_le16(CMD_802_11_PS_MODE
);
1138 confirm_sleep
.hdr
.size
= cpu_to_le16(sizeof(confirm_sleep
));
1139 confirm_sleep
.action
= cpu_to_le16(PS_MODE_ACTION_SLEEP_CONFIRMED
);
1145 static void __exit
lbs_exit_module(void)
1147 lbs_debugfs_remove();
1150 module_init(lbs_init_module
);
1151 module_exit(lbs_exit_module
);
1153 MODULE_DESCRIPTION("Libertas WLAN Driver Library");
1154 MODULE_AUTHOR("Marvell International Ltd.");
1155 MODULE_LICENSE("GPL");