2 * This file contains the major functions in WLAN
3 * driver. It includes init, exit, open, close and main
7 #include <linux/moduleparam.h>
8 #include <linux/delay.h>
9 #include <linux/freezer.h>
10 #include <linux/etherdevice.h>
11 #include <linux/netdevice.h>
12 #include <linux/if_arp.h>
14 #include <net/iw_handler.h>
15 #include <net/ieee80211.h>
24 #define DRIVER_RELEASE_VERSION "322.p0"
25 const char libertas_driver_version
[] = "COMM-USB8388-" DRIVER_RELEASE_VERSION
32 /* Module parameters */
33 unsigned int libertas_debug
= 0;
34 module_param(libertas_debug
, int, 0644);
35 EXPORT_SYMBOL_GPL(libertas_debug
);
38 #define WLAN_TX_PWR_DEFAULT 20 /*100mW */
39 #define WLAN_TX_PWR_US_DEFAULT 20 /*100mW */
40 #define WLAN_TX_PWR_JP_DEFAULT 16 /*50mW */
41 #define WLAN_TX_PWR_FR_DEFAULT 20 /*100mW */
42 #define WLAN_TX_PWR_EMEA_DEFAULT 20 /*100mW */
44 /* Format { channel, frequency (MHz), maxtxpower } */
45 /* band: 'B/G', region: USA FCC/Canada IC */
46 static struct chan_freq_power channel_freq_power_US_BG
[] = {
47 {1, 2412, WLAN_TX_PWR_US_DEFAULT
},
48 {2, 2417, WLAN_TX_PWR_US_DEFAULT
},
49 {3, 2422, WLAN_TX_PWR_US_DEFAULT
},
50 {4, 2427, WLAN_TX_PWR_US_DEFAULT
},
51 {5, 2432, WLAN_TX_PWR_US_DEFAULT
},
52 {6, 2437, WLAN_TX_PWR_US_DEFAULT
},
53 {7, 2442, WLAN_TX_PWR_US_DEFAULT
},
54 {8, 2447, WLAN_TX_PWR_US_DEFAULT
},
55 {9, 2452, WLAN_TX_PWR_US_DEFAULT
},
56 {10, 2457, WLAN_TX_PWR_US_DEFAULT
},
57 {11, 2462, WLAN_TX_PWR_US_DEFAULT
}
60 /* band: 'B/G', region: Europe ETSI */
61 static struct chan_freq_power channel_freq_power_EU_BG
[] = {
62 {1, 2412, WLAN_TX_PWR_EMEA_DEFAULT
},
63 {2, 2417, WLAN_TX_PWR_EMEA_DEFAULT
},
64 {3, 2422, WLAN_TX_PWR_EMEA_DEFAULT
},
65 {4, 2427, WLAN_TX_PWR_EMEA_DEFAULT
},
66 {5, 2432, WLAN_TX_PWR_EMEA_DEFAULT
},
67 {6, 2437, WLAN_TX_PWR_EMEA_DEFAULT
},
68 {7, 2442, WLAN_TX_PWR_EMEA_DEFAULT
},
69 {8, 2447, WLAN_TX_PWR_EMEA_DEFAULT
},
70 {9, 2452, WLAN_TX_PWR_EMEA_DEFAULT
},
71 {10, 2457, WLAN_TX_PWR_EMEA_DEFAULT
},
72 {11, 2462, WLAN_TX_PWR_EMEA_DEFAULT
},
73 {12, 2467, WLAN_TX_PWR_EMEA_DEFAULT
},
74 {13, 2472, WLAN_TX_PWR_EMEA_DEFAULT
}
77 /* band: 'B/G', region: Spain */
78 static struct chan_freq_power channel_freq_power_SPN_BG
[] = {
79 {10, 2457, WLAN_TX_PWR_DEFAULT
},
80 {11, 2462, WLAN_TX_PWR_DEFAULT
}
83 /* band: 'B/G', region: France */
84 static struct chan_freq_power channel_freq_power_FR_BG
[] = {
85 {10, 2457, WLAN_TX_PWR_FR_DEFAULT
},
86 {11, 2462, WLAN_TX_PWR_FR_DEFAULT
},
87 {12, 2467, WLAN_TX_PWR_FR_DEFAULT
},
88 {13, 2472, WLAN_TX_PWR_FR_DEFAULT
}
91 /* band: 'B/G', region: Japan */
92 static struct chan_freq_power channel_freq_power_JPN_BG
[] = {
93 {1, 2412, WLAN_TX_PWR_JP_DEFAULT
},
94 {2, 2417, WLAN_TX_PWR_JP_DEFAULT
},
95 {3, 2422, WLAN_TX_PWR_JP_DEFAULT
},
96 {4, 2427, WLAN_TX_PWR_JP_DEFAULT
},
97 {5, 2432, WLAN_TX_PWR_JP_DEFAULT
},
98 {6, 2437, WLAN_TX_PWR_JP_DEFAULT
},
99 {7, 2442, WLAN_TX_PWR_JP_DEFAULT
},
100 {8, 2447, WLAN_TX_PWR_JP_DEFAULT
},
101 {9, 2452, WLAN_TX_PWR_JP_DEFAULT
},
102 {10, 2457, WLAN_TX_PWR_JP_DEFAULT
},
103 {11, 2462, WLAN_TX_PWR_JP_DEFAULT
},
104 {12, 2467, WLAN_TX_PWR_JP_DEFAULT
},
105 {13, 2472, WLAN_TX_PWR_JP_DEFAULT
},
106 {14, 2484, WLAN_TX_PWR_JP_DEFAULT
}
110 * the structure for channel, frequency and power
112 struct region_cfp_table
{
114 struct chan_freq_power
*cfp_BG
;
119 * the structure for the mapping between region and CFP
121 static struct region_cfp_table region_cfp_table
[] = {
123 channel_freq_power_US_BG
,
124 sizeof(channel_freq_power_US_BG
) / sizeof(struct chan_freq_power
),
127 {0x20, /*CANADA IC */
128 channel_freq_power_US_BG
,
129 sizeof(channel_freq_power_US_BG
) / sizeof(struct chan_freq_power
),
132 {0x30, /*EU*/ channel_freq_power_EU_BG
,
133 sizeof(channel_freq_power_EU_BG
) / sizeof(struct chan_freq_power
),
136 {0x31, /*SPAIN*/ channel_freq_power_SPN_BG
,
137 sizeof(channel_freq_power_SPN_BG
) / sizeof(struct chan_freq_power
),
140 {0x32, /*FRANCE*/ channel_freq_power_FR_BG
,
141 sizeof(channel_freq_power_FR_BG
) / sizeof(struct chan_freq_power
),
144 {0x40, /*JAPAN*/ channel_freq_power_JPN_BG
,
145 sizeof(channel_freq_power_JPN_BG
) / sizeof(struct chan_freq_power
),
148 /*Add new region here */
152 * the rates supported
154 u8 libertas_supported_rates
[G_SUPPORTED_RATES
] =
155 { 0x82, 0x84, 0x8b, 0x96, 0x0c, 0x12, 0x18, 0x24, 0x30, 0x48, 0x60, 0x6c,
159 * the rates supported for ad-hoc G mode
161 u8 libertas_adhoc_rates_g
[G_SUPPORTED_RATES
] =
162 { 0x82, 0x84, 0x8b, 0x96, 0x0c, 0x12, 0x18, 0x24, 0x30, 0x48, 0x60, 0x6c,
166 * the rates supported for ad-hoc B mode
168 u8 libertas_adhoc_rates_b
[4] = { 0x82, 0x84, 0x8b, 0x96 };
171 * the table to keep region code
173 u16 libertas_region_code_to_index
[MRVDRV_MAX_REGION_CODE
] =
174 { 0x10, 0x20, 0x30, 0x31, 0x32, 0x40 };
177 * Attributes exported through sysfs
181 * @brief Get function for sysfs attribute anycast_mask
183 static ssize_t
libertas_anycast_get(struct device
* dev
,
184 struct device_attribute
*attr
, char * buf
)
186 struct cmd_ds_mesh_access mesh_access
;
188 memset(&mesh_access
, 0, sizeof(mesh_access
));
189 libertas_prepare_and_send_command(to_net_dev(dev
)->priv
,
191 cmd_act_mesh_get_anycast
,
192 cmd_option_waitforrsp
, 0, (void *)&mesh_access
);
194 return snprintf(buf
, 12, "0x%X\n", le32_to_cpu(mesh_access
.data
[0]));
198 * @brief Set function for sysfs attribute anycast_mask
200 static ssize_t
libertas_anycast_set(struct device
* dev
,
201 struct device_attribute
*attr
, const char * buf
, size_t count
)
203 struct cmd_ds_mesh_access mesh_access
;
206 memset(&mesh_access
, 0, sizeof(mesh_access
));
207 sscanf(buf
, "%x", &datum
);
208 mesh_access
.data
[0] = cpu_to_le32(datum
);
210 libertas_prepare_and_send_command((to_net_dev(dev
))->priv
,
212 cmd_act_mesh_set_anycast
,
213 cmd_option_waitforrsp
, 0, (void *)&mesh_access
);
218 * anycast_mask attribute to be exported per mshX interface
219 * through sysfs (/sys/class/net/mshX/anycast_mask)
221 static DEVICE_ATTR(anycast_mask
, 0644, libertas_anycast_get
, libertas_anycast_set
);
224 * @brief Check if the device can be open and wait if necessary.
226 * @param dev A pointer to net_device structure
229 * For USB adapter, on some systems the device open handler will be
230 * called before FW ready. Use the following flag check and wait
231 * function to work around the issue.
234 static int pre_open_check(struct net_device
*dev
)
236 wlan_private
*priv
= (wlan_private
*) dev
->priv
;
237 wlan_adapter
*adapter
= priv
->adapter
;
240 while (!adapter
->fw_ready
&& i
< 20) {
242 msleep_interruptible(100);
244 if (!adapter
->fw_ready
) {
245 lbs_pr_err("firmware not ready\n");
253 * @brief This function opens the device
255 * @param dev A pointer to net_device structure
258 static int wlan_dev_open(struct net_device
*dev
)
260 wlan_private
*priv
= (wlan_private
*) dev
->priv
;
261 wlan_adapter
*adapter
= priv
->adapter
;
263 lbs_deb_enter(LBS_DEB_NET
);
267 if (adapter
->connect_status
== libertas_connected
) {
268 netif_carrier_on(priv
->dev
);
269 netif_carrier_on(priv
->mesh_dev
);
271 netif_carrier_off(priv
->dev
);
272 netif_carrier_off(priv
->mesh_dev
);
275 lbs_deb_leave(LBS_DEB_NET
);
279 * @brief This function opens the mshX interface
281 * @param dev A pointer to net_device structure
284 static int mesh_open(struct net_device
*dev
)
286 wlan_private
*priv
= (wlan_private
*) dev
->priv
;
288 if (pre_open_check(dev
) == -1)
290 priv
->mesh_open
= 1 ;
291 netif_wake_queue(priv
->mesh_dev
);
292 if (priv
->infra_open
== 0)
293 return wlan_dev_open(priv
->dev
) ;
298 * @brief This function opens the ethX interface
300 * @param dev A pointer to net_device structure
303 static int wlan_open(struct net_device
*dev
)
305 wlan_private
*priv
= (wlan_private
*) dev
->priv
;
307 if(pre_open_check(dev
) == -1)
309 priv
->infra_open
= 1 ;
310 netif_wake_queue(priv
->dev
);
312 return wlan_dev_open(priv
->dev
) ;
316 static int wlan_dev_close(struct net_device
*dev
)
318 wlan_private
*priv
= dev
->priv
;
320 lbs_deb_enter(LBS_DEB_NET
);
322 netif_carrier_off(priv
->dev
);
325 lbs_deb_leave(LBS_DEB_NET
);
330 * @brief This function closes the mshX interface
332 * @param dev A pointer to net_device structure
335 static int mesh_close(struct net_device
*dev
)
337 wlan_private
*priv
= (wlan_private
*) (dev
->priv
);
340 netif_stop_queue(priv
->mesh_dev
);
341 if (priv
->infra_open
== 0)
342 return wlan_dev_close(dev
);
348 * @brief This function closes the ethX interface
350 * @param dev A pointer to net_device structure
353 static int wlan_close(struct net_device
*dev
)
355 wlan_private
*priv
= (wlan_private
*) dev
->priv
;
357 netif_stop_queue(dev
);
358 priv
->infra_open
= 0;
359 if (priv
->mesh_open
== 0)
360 return wlan_dev_close(dev
);
366 static int wlan_hard_start_xmit(struct sk_buff
*skb
, struct net_device
*dev
)
369 wlan_private
*priv
= dev
->priv
;
371 lbs_deb_enter(LBS_DEB_NET
);
373 if (priv
->dnld_sent
|| priv
->adapter
->TxLockFlag
) {
374 priv
->stats
.tx_dropped
++;
378 netif_stop_queue(priv
->dev
);
379 netif_stop_queue(priv
->mesh_dev
);
381 if (libertas_process_tx(priv
, skb
) == 0)
382 dev
->trans_start
= jiffies
;
384 lbs_deb_leave_args(LBS_DEB_NET
, "ret %d", ret
);
389 * @brief Mark mesh packets and handover them to wlan_hard_start_xmit
392 static int mesh_pre_start_xmit(struct sk_buff
*skb
, struct net_device
*dev
)
394 wlan_private
*priv
= dev
->priv
;
397 lbs_deb_enter(LBS_DEB_MESH
);
401 ret
= wlan_hard_start_xmit(skb
, priv
->dev
);
402 lbs_deb_leave_args(LBS_DEB_MESH
, "ret %d", ret
);
407 * @brief Mark non-mesh packets and handover them to wlan_hard_start_xmit
410 static int wlan_pre_start_xmit(struct sk_buff
*skb
, struct net_device
*dev
)
414 lbs_deb_enter(LBS_DEB_NET
);
416 UNSET_MESH_FRAME(skb
);
418 ret
= wlan_hard_start_xmit(skb
, dev
);
419 lbs_deb_leave_args(LBS_DEB_NET
, "ret %d", ret
);
423 static void wlan_tx_timeout(struct net_device
*dev
)
425 wlan_private
*priv
= (wlan_private
*) dev
->priv
;
427 lbs_deb_enter(LBS_DEB_TX
);
429 lbs_pr_err("tx watch dog timeout\n");
431 priv
->dnld_sent
= DNLD_RES_RECEIVED
;
432 dev
->trans_start
= jiffies
;
434 if (priv
->adapter
->currenttxskb
) {
435 if (priv
->adapter
->radiomode
== WLAN_RADIOMODE_RADIOTAP
) {
436 /* If we are here, we have not received feedback from
437 the previous packet. Assume TX_FAIL and move on. */
438 priv
->adapter
->eventcause
= 0x01000000;
439 libertas_send_tx_feedback(priv
);
441 wake_up_interruptible(&priv
->mainthread
.waitq
);
442 } else if (priv
->adapter
->connect_status
== libertas_connected
) {
443 netif_wake_queue(priv
->dev
);
444 netif_wake_queue(priv
->mesh_dev
);
447 lbs_deb_leave(LBS_DEB_TX
);
451 * @brief This function returns the network statistics
453 * @param dev A pointer to wlan_private structure
454 * @return A pointer to net_device_stats structure
456 static struct net_device_stats
*wlan_get_stats(struct net_device
*dev
)
458 wlan_private
*priv
= (wlan_private
*) dev
->priv
;
463 static int wlan_set_mac_address(struct net_device
*dev
, void *addr
)
466 wlan_private
*priv
= (wlan_private
*) dev
->priv
;
467 wlan_adapter
*adapter
= priv
->adapter
;
468 struct sockaddr
*phwaddr
= addr
;
470 lbs_deb_enter(LBS_DEB_NET
);
472 /* In case it was called from the mesh device */
475 memset(adapter
->current_addr
, 0, ETH_ALEN
);
477 /* dev->dev_addr is 8 bytes */
478 lbs_dbg_hex("dev->dev_addr:", dev
->dev_addr
, ETH_ALEN
);
480 lbs_dbg_hex("addr:", phwaddr
->sa_data
, ETH_ALEN
);
481 memcpy(adapter
->current_addr
, phwaddr
->sa_data
, ETH_ALEN
);
483 ret
= libertas_prepare_and_send_command(priv
, cmd_802_11_mac_address
,
485 cmd_option_waitforrsp
, 0, NULL
);
488 lbs_deb_net("set MAC address failed\n");
493 lbs_dbg_hex("adapter->macaddr:", adapter
->current_addr
, ETH_ALEN
);
494 memcpy(dev
->dev_addr
, adapter
->current_addr
, ETH_ALEN
);
496 memcpy(priv
->mesh_dev
->dev_addr
, adapter
->current_addr
, ETH_ALEN
);
499 lbs_deb_leave_args(LBS_DEB_NET
, "ret %d", ret
);
503 static int wlan_copy_multicast_address(wlan_adapter
* adapter
,
504 struct net_device
*dev
)
507 struct dev_mc_list
*mcptr
= dev
->mc_list
;
509 for (i
= 0; i
< dev
->mc_count
; i
++) {
510 memcpy(&adapter
->multicastlist
[i
], mcptr
->dmi_addr
, ETH_ALEN
);
518 static void wlan_set_multicast_list(struct net_device
*dev
)
520 wlan_private
*priv
= dev
->priv
;
521 wlan_adapter
*adapter
= priv
->adapter
;
524 lbs_deb_enter(LBS_DEB_NET
);
526 oldpacketfilter
= adapter
->currentpacketfilter
;
528 if (dev
->flags
& IFF_PROMISC
) {
529 lbs_deb_net("enable promiscuous mode\n");
530 adapter
->currentpacketfilter
|=
531 cmd_act_mac_promiscuous_enable
;
532 adapter
->currentpacketfilter
&=
533 ~(cmd_act_mac_all_multicast_enable
|
534 cmd_act_mac_multicast_enable
);
537 adapter
->currentpacketfilter
&=
538 ~cmd_act_mac_promiscuous_enable
;
540 if (dev
->flags
& IFF_ALLMULTI
|| dev
->mc_count
>
541 MRVDRV_MAX_MULTICAST_LIST_SIZE
) {
542 lbs_deb_net( "enabling all multicast\n");
543 adapter
->currentpacketfilter
|=
544 cmd_act_mac_all_multicast_enable
;
545 adapter
->currentpacketfilter
&=
546 ~cmd_act_mac_multicast_enable
;
548 adapter
->currentpacketfilter
&=
549 ~cmd_act_mac_all_multicast_enable
;
551 if (!dev
->mc_count
) {
552 lbs_deb_net("no multicast addresses, "
553 "disabling multicast\n");
554 adapter
->currentpacketfilter
&=
555 ~cmd_act_mac_multicast_enable
;
559 adapter
->currentpacketfilter
|=
560 cmd_act_mac_multicast_enable
;
562 adapter
->nr_of_multicastmacaddr
=
563 wlan_copy_multicast_address(adapter
, dev
);
565 lbs_deb_net("multicast addresses: %d\n",
568 for (i
= 0; i
< dev
->mc_count
; i
++) {
569 lbs_deb_net("Multicast address %d:"
571 adapter
->multicastlist
[i
][0],
572 adapter
->multicastlist
[i
][1],
573 adapter
->multicastlist
[i
][2],
574 adapter
->multicastlist
[i
][3],
575 adapter
->multicastlist
[i
][4],
576 adapter
->multicastlist
[i
][5]);
578 /* send multicast addresses to firmware */
579 libertas_prepare_and_send_command(priv
,
580 cmd_mac_multicast_adr
,
587 if (adapter
->currentpacketfilter
!= oldpacketfilter
) {
588 libertas_set_mac_packet_filter(priv
);
591 lbs_deb_leave(LBS_DEB_NET
);
595 * @brief This function handles the major jobs in the WLAN driver.
596 * It handles all events generated by firmware, RX data received
597 * from firmware and TX data sent from kernel.
599 * @param data A pointer to wlan_thread structure
602 static int wlan_service_main_thread(void *data
)
604 struct wlan_thread
*thread
= data
;
605 wlan_private
*priv
= thread
->priv
;
606 wlan_adapter
*adapter
= priv
->adapter
;
610 lbs_deb_enter(LBS_DEB_THREAD
);
612 wlan_activate_thread(thread
);
614 init_waitqueue_entry(&wait
, current
);
617 lbs_deb_thread( "main-thread 111: intcounter=%d "
618 "currenttxskb=%p dnld_sent=%d\n",
620 adapter
->currenttxskb
, priv
->dnld_sent
);
622 add_wait_queue(&thread
->waitq
, &wait
);
623 set_current_state(TASK_INTERRUPTIBLE
);
624 spin_lock_irq(&adapter
->driver_lock
);
625 if ((adapter
->psstate
== PS_STATE_SLEEP
) ||
626 (!adapter
->intcounter
627 && (priv
->dnld_sent
|| adapter
->cur_cmd
||
628 list_empty(&adapter
->cmdpendingq
)))) {
630 "main-thread sleeping... Conn=%d IntC=%d PS_mode=%d PS_State=%d\n",
631 adapter
->connect_status
, adapter
->intcounter
,
632 adapter
->psmode
, adapter
->psstate
);
633 spin_unlock_irq(&adapter
->driver_lock
);
636 spin_unlock_irq(&adapter
->driver_lock
);
640 "main-thread 222 (waking up): intcounter=%d currenttxskb=%p "
641 "dnld_sent=%d\n", adapter
->intcounter
,
642 adapter
->currenttxskb
, priv
->dnld_sent
);
644 set_current_state(TASK_RUNNING
);
645 remove_wait_queue(&thread
->waitq
, &wait
);
648 lbs_deb_thread("main-thread 333: intcounter=%d currenttxskb=%p "
651 adapter
->currenttxskb
, priv
->dnld_sent
);
653 if (kthread_should_stop()
654 || adapter
->surpriseremoved
) {
656 "main-thread: break from main thread: surpriseremoved=0x%x\n",
657 adapter
->surpriseremoved
);
662 spin_lock_irq(&adapter
->driver_lock
);
663 if (adapter
->intcounter
) {
665 adapter
->intcounter
= 0;
666 int_status
= priv
->hw_get_int_status(priv
, &ireg
);
670 "main-thread: reading HOST_INT_STATUS_REG failed\n");
671 spin_unlock_irq(&adapter
->driver_lock
);
674 adapter
->hisregcpy
|= ireg
;
677 lbs_deb_thread("main-thread 444: intcounter=%d currenttxskb=%p "
680 adapter
->currenttxskb
, priv
->dnld_sent
);
682 /* command response? */
683 if (adapter
->hisregcpy
& his_cmdupldrdy
) {
684 lbs_deb_thread("main-thread: cmd response ready\n");
686 adapter
->hisregcpy
&= ~his_cmdupldrdy
;
687 spin_unlock_irq(&adapter
->driver_lock
);
688 libertas_process_rx_command(priv
);
689 spin_lock_irq(&adapter
->driver_lock
);
693 if (adapter
->hisregcpy
& his_cardevent
) {
694 lbs_deb_thread("main-thread: Card Event Activity\n");
696 adapter
->hisregcpy
&= ~his_cardevent
;
698 if (priv
->hw_read_event_cause(priv
)) {
700 "main-thread: hw_read_event_cause failed\n");
701 spin_unlock_irq(&adapter
->driver_lock
);
704 spin_unlock_irq(&adapter
->driver_lock
);
705 libertas_process_event(priv
);
707 spin_unlock_irq(&adapter
->driver_lock
);
709 /* Check if we need to confirm Sleep Request received previously */
710 if (adapter
->psstate
== PS_STATE_PRE_SLEEP
) {
711 if (!priv
->dnld_sent
&& !adapter
->cur_cmd
) {
712 if (adapter
->connect_status
==
713 libertas_connected
) {
715 "main_thread: PRE_SLEEP--intcounter=%d currenttxskb=%p "
716 "dnld_sent=%d cur_cmd=%p, confirm now\n",
718 adapter
->currenttxskb
,
722 libertas_ps_confirm_sleep(priv
,
723 (u16
) adapter
->psmode
);
725 /* workaround for firmware sending
726 * deauth/linkloss event immediately
727 * after sleep request, remove this
728 * after firmware fixes it
730 adapter
->psstate
= PS_STATE_AWAKE
;
732 "main-thread: ignore PS_SleepConfirm in non-connected state\n");
737 /* The PS state is changed during processing of Sleep Request
740 if ((priv
->adapter
->psstate
== PS_STATE_SLEEP
) ||
741 (priv
->adapter
->psstate
== PS_STATE_PRE_SLEEP
))
744 /* Execute the next command */
745 if (!priv
->dnld_sent
&& !priv
->adapter
->cur_cmd
)
746 libertas_execute_next_command(priv
);
748 /* Wake-up command waiters which can't sleep in
749 * libertas_prepare_and_send_command
751 if (!adapter
->nr_cmd_pending
)
752 wake_up_all(&adapter
->cmd_pending
);
754 libertas_tx_runqueue(priv
);
757 del_timer(&adapter
->command_timer
);
758 adapter
->nr_cmd_pending
= 0;
759 wake_up_all(&adapter
->cmd_pending
);
760 wlan_deactivate_thread(thread
);
762 lbs_deb_leave(LBS_DEB_THREAD
);
767 * @brief This function adds the card. it will probe the
768 * card, allocate the wlan_priv and initialize the device.
770 * @param card A pointer to card
771 * @return A pointer to wlan_private structure
773 wlan_private
*libertas_add_card(void *card
, struct device
*dmdev
)
775 struct net_device
*dev
= NULL
;
776 wlan_private
*priv
= NULL
;
778 lbs_deb_enter(LBS_DEB_NET
);
780 /* Allocate an Ethernet device and register it */
781 if (!(dev
= alloc_etherdev(sizeof(wlan_private
)))) {
782 lbs_pr_err("init ethX device failed\n");
787 /* allocate buffer for wlan_adapter */
788 if (!(priv
->adapter
= kzalloc(sizeof(wlan_adapter
), GFP_KERNEL
))) {
789 lbs_pr_err("allocate buffer for wlan_adapter failed\n");
796 priv
->infra_open
= 0;
798 SET_MODULE_OWNER(dev
);
800 /* Setup the OS Interface to our functions */
801 dev
->open
= wlan_open
;
802 dev
->hard_start_xmit
= wlan_pre_start_xmit
;
803 dev
->stop
= wlan_close
;
804 dev
->set_mac_address
= wlan_set_mac_address
;
805 dev
->tx_timeout
= wlan_tx_timeout
;
806 dev
->get_stats
= wlan_get_stats
;
807 dev
->watchdog_timeo
= 5 * HZ
;
808 dev
->ethtool_ops
= &libertas_ethtool_ops
;
810 dev
->wireless_handlers
= (struct iw_handler_def
*)&libertas_handler_def
;
812 #define NETIF_F_DYNALLOC 16
813 dev
->features
|= NETIF_F_DYNALLOC
;
814 dev
->flags
|= IFF_BROADCAST
| IFF_MULTICAST
;
815 dev
->set_multicast_list
= wlan_set_multicast_list
;
817 SET_NETDEV_DEV(dev
, dmdev
);
819 INIT_LIST_HEAD(&priv
->adapter
->cmdfreeq
);
820 INIT_LIST_HEAD(&priv
->adapter
->cmdpendingq
);
822 spin_lock_init(&priv
->adapter
->driver_lock
);
823 init_waitqueue_head(&priv
->adapter
->cmd_pending
);
824 priv
->adapter
->nr_cmd_pending
= 0;
831 lbs_deb_leave_args(LBS_DEB_NET
, "priv %p", priv
);
834 EXPORT_SYMBOL_GPL(libertas_add_card
);
836 int libertas_activate_card(wlan_private
*priv
, char *fw_name
)
838 struct net_device
*dev
= priv
->dev
;
841 lbs_deb_enter(LBS_DEB_MAIN
);
843 lbs_deb_thread("Starting kthread...\n");
844 priv
->mainthread
.priv
= priv
;
845 wlan_create_thread(wlan_service_main_thread
,
846 &priv
->mainthread
, "wlan_main_service");
849 create_singlethread_workqueue("libertas_assoc");
850 INIT_DELAYED_WORK(&priv
->assoc_work
, libertas_association_worker
);
851 INIT_WORK(&priv
->sync_channel
, libertas_sync_channel
);
854 * Register the device. Fillup the private data structure with
855 * relevant information from the card and request for the required
858 if (priv
->hw_register_dev(priv
) < 0) {
859 lbs_pr_err("failed to register WLAN device\n");
860 goto err_registerdev
;
864 if (fw_name
&& libertas_init_fw(priv
, fw_name
)) {
865 lbs_pr_err("firmware init failed\n");
866 goto err_registerdev
;
869 if (register_netdev(dev
)) {
870 lbs_pr_err("cannot register ethX device\n");
874 lbs_pr_info("%s: Marvell WLAN 802.11 adapter\n", dev
->name
);
876 libertas_debugfs_init_one(priv
, dev
);
882 priv
->hw_unregister_dev(priv
);
884 destroy_workqueue(priv
->assoc_thread
);
885 /* Stop the thread servicing the interrupts */
886 wake_up_interruptible(&priv
->mainthread
.waitq
);
887 wlan_terminate_thread(&priv
->mainthread
);
889 lbs_deb_leave_args(LBS_DEB_NET
, "ret %d", ret
);
892 EXPORT_SYMBOL_GPL(libertas_activate_card
);
896 * @brief This function adds mshX interface
898 * @param priv A pointer to the wlan_private structure
899 * @return 0 if successful, -X otherwise
901 int libertas_add_mesh(wlan_private
*priv
, struct device
*dev
)
903 struct net_device
*mesh_dev
= NULL
;
906 lbs_deb_enter(LBS_DEB_MESH
);
908 /* Allocate a virtual mesh device */
909 if (!(mesh_dev
= alloc_netdev(0, "msh%d", ether_setup
))) {
910 lbs_deb_mesh("init mshX device failed\n");
914 mesh_dev
->priv
= priv
;
915 priv
->mesh_dev
= mesh_dev
;
917 SET_MODULE_OWNER(mesh_dev
);
919 mesh_dev
->open
= mesh_open
;
920 mesh_dev
->hard_start_xmit
= mesh_pre_start_xmit
;
921 mesh_dev
->stop
= mesh_close
;
922 mesh_dev
->get_stats
= wlan_get_stats
;
923 mesh_dev
->set_mac_address
= wlan_set_mac_address
;
924 mesh_dev
->ethtool_ops
= &libertas_ethtool_ops
;
925 memcpy(mesh_dev
->dev_addr
, priv
->dev
->dev_addr
,
926 sizeof(priv
->dev
->dev_addr
));
928 SET_NETDEV_DEV(priv
->mesh_dev
, dev
);
931 mesh_dev
->wireless_handlers
= (struct iw_handler_def
*)&mesh_handler_def
;
933 #define NETIF_F_DYNALLOC 16
935 /* Register virtual mesh interface */
936 ret
= register_netdev(mesh_dev
);
938 lbs_pr_err("cannot register mshX virtual interface\n");
942 ret
= device_create_file(&(mesh_dev
->dev
), &dev_attr_anycast_mask
);
946 /* Everything successful */
952 unregister_netdev(mesh_dev
);
955 free_netdev(mesh_dev
);
958 lbs_deb_leave_args(LBS_DEB_MESH
, "ret %d", ret
);
961 EXPORT_SYMBOL_GPL(libertas_add_mesh
);
963 static void wake_pending_cmdnodes(wlan_private
*priv
)
965 struct cmd_ctrl_node
*cmdnode
;
968 lbs_deb_enter(LBS_DEB_CMD
);
970 spin_lock_irqsave(&priv
->adapter
->driver_lock
, flags
);
971 list_for_each_entry(cmdnode
, &priv
->adapter
->cmdpendingq
, list
) {
972 cmdnode
->cmdwaitqwoken
= 1;
973 wake_up_interruptible(&cmdnode
->cmdwait_q
);
975 spin_unlock_irqrestore(&priv
->adapter
->driver_lock
, flags
);
979 int libertas_remove_card(wlan_private
*priv
)
981 wlan_adapter
*adapter
;
982 struct net_device
*dev
;
983 union iwreq_data wrqu
;
985 lbs_deb_enter(LBS_DEB_NET
);
990 adapter
= priv
->adapter
;
997 netif_stop_queue(priv
->dev
);
998 netif_carrier_off(priv
->dev
);
1000 wake_pending_cmdnodes(priv
);
1002 unregister_netdev(dev
);
1004 cancel_delayed_work(&priv
->assoc_work
);
1005 destroy_workqueue(priv
->assoc_thread
);
1007 if (adapter
->psmode
== wlan802_11powermodemax_psp
) {
1008 adapter
->psmode
= wlan802_11powermodecam
;
1009 libertas_ps_wakeup(priv
, cmd_option_waitforrsp
);
1012 memset(wrqu
.ap_addr
.sa_data
, 0xaa, ETH_ALEN
);
1013 wrqu
.ap_addr
.sa_family
= ARPHRD_ETHER
;
1014 wireless_send_event(priv
->dev
, SIOCGIWAP
, &wrqu
, NULL
);
1016 adapter
->surpriseremoved
= 1;
1018 /* Stop the thread servicing the interrupts */
1019 wlan_terminate_thread(&priv
->mainthread
);
1021 libertas_debugfs_remove_one(priv
);
1023 lbs_deb_net("free adapter\n");
1024 libertas_free_adapter(priv
);
1026 lbs_deb_net("unregister finish\n");
1032 lbs_deb_leave(LBS_DEB_NET
);
1035 EXPORT_SYMBOL_GPL(libertas_remove_card
);
1038 void libertas_remove_mesh(wlan_private
*priv
)
1040 struct net_device
*mesh_dev
;
1042 lbs_deb_enter(LBS_DEB_NET
);
1047 mesh_dev
= priv
->mesh_dev
;
1049 netif_stop_queue(mesh_dev
);
1050 netif_carrier_off(priv
->mesh_dev
);
1052 device_remove_file(&(mesh_dev
->dev
), &dev_attr_anycast_mask
);
1053 unregister_netdev(mesh_dev
);
1055 priv
->mesh_dev
= NULL
;
1056 free_netdev(mesh_dev
);
1059 lbs_deb_leave(LBS_DEB_NET
);
1061 EXPORT_SYMBOL_GPL(libertas_remove_mesh
);
1064 * @brief This function finds the CFP in
1065 * region_cfp_table based on region and band parameter.
1067 * @param region The region code
1068 * @param band The band
1069 * @param cfp_no A pointer to CFP number
1070 * @return A pointer to CFP
1072 struct chan_freq_power
*libertas_get_region_cfp_table(u8 region
, u8 band
, int *cfp_no
)
1076 lbs_deb_enter(LBS_DEB_MAIN
);
1078 end
= sizeof(region_cfp_table
)/sizeof(struct region_cfp_table
);
1080 for (i
= 0; i
< end
; i
++) {
1081 lbs_deb_main("region_cfp_table[i].region=%d\n",
1082 region_cfp_table
[i
].region
);
1083 if (region_cfp_table
[i
].region
== region
) {
1084 *cfp_no
= region_cfp_table
[i
].cfp_no_BG
;
1085 lbs_deb_leave(LBS_DEB_MAIN
);
1086 return region_cfp_table
[i
].cfp_BG
;
1090 lbs_deb_leave_args(LBS_DEB_MAIN
, "ret NULL");
1094 int libertas_set_regiontable(wlan_private
* priv
, u8 region
, u8 band
)
1096 wlan_adapter
*adapter
= priv
->adapter
;
1100 struct chan_freq_power
*cfp
;
1103 lbs_deb_enter(LBS_DEB_MAIN
);
1105 memset(adapter
->region_channel
, 0, sizeof(adapter
->region_channel
));
1108 cfp
= libertas_get_region_cfp_table(region
, band
, &cfp_no
);
1110 adapter
->region_channel
[i
].nrcfp
= cfp_no
;
1111 adapter
->region_channel
[i
].CFP
= cfp
;
1113 lbs_deb_main("wrong region code %#x in band B/G\n",
1118 adapter
->region_channel
[i
].valid
= 1;
1119 adapter
->region_channel
[i
].region
= region
;
1120 adapter
->region_channel
[i
].band
= band
;
1124 lbs_deb_leave_args(LBS_DEB_MAIN
, "ret %d", ret
);
1129 * @brief This function handles the interrupt. it will change PS
1130 * state if applicable. it will wake up main_thread to handle
1131 * the interrupt event as well.
1133 * @param dev A pointer to net_device structure
1136 void libertas_interrupt(struct net_device
*dev
)
1138 wlan_private
*priv
= dev
->priv
;
1140 lbs_deb_enter(LBS_DEB_THREAD
);
1142 lbs_deb_thread("libertas_interrupt: intcounter=%d\n",
1143 priv
->adapter
->intcounter
);
1145 priv
->adapter
->intcounter
++;
1147 if (priv
->adapter
->psstate
== PS_STATE_SLEEP
) {
1148 priv
->adapter
->psstate
= PS_STATE_AWAKE
;
1149 netif_wake_queue(dev
);
1150 netif_wake_queue(priv
->mesh_dev
);
1153 wake_up_interruptible(&priv
->mainthread
.waitq
);
1155 lbs_deb_leave(LBS_DEB_THREAD
);
1157 EXPORT_SYMBOL_GPL(libertas_interrupt
);
1159 static int libertas_init_module(void)
1161 lbs_deb_enter(LBS_DEB_MAIN
);
1162 libertas_debugfs_init();
1163 lbs_deb_leave(LBS_DEB_MAIN
);
1167 static void libertas_exit_module(void)
1169 lbs_deb_enter(LBS_DEB_MAIN
);
1171 libertas_debugfs_remove();
1173 lbs_deb_leave(LBS_DEB_MAIN
);
1176 module_init(libertas_init_module
);
1177 module_exit(libertas_exit_module
);
1179 MODULE_DESCRIPTION("Libertas WLAN Driver Library");
1180 MODULE_AUTHOR("Marvell International Ltd.");
1181 MODULE_LICENSE("GPL");