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/etherdevice.h>
10 #include <linux/netdevice.h>
11 #include <linux/if_arp.h>
12 #include <linux/kthread.h>
13 #include <linux/kfifo.h>
14 #include <linux/stddef.h>
16 #include <net/iw_handler.h>
17 #include <net/ieee80211.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);
42 /* This global structure is used to send the confirm_sleep command as
43 * fast as possible down to the firmware. */
44 struct cmd_confirm_sleep confirm_sleep
;
47 #define LBS_TX_PWR_DEFAULT 20 /*100mW */
48 #define LBS_TX_PWR_US_DEFAULT 20 /*100mW */
49 #define LBS_TX_PWR_JP_DEFAULT 16 /*50mW */
50 #define LBS_TX_PWR_FR_DEFAULT 20 /*100mW */
51 #define LBS_TX_PWR_EMEA_DEFAULT 20 /*100mW */
53 /* Format { channel, frequency (MHz), maxtxpower } */
54 /* band: 'B/G', region: USA FCC/Canada IC */
55 static struct chan_freq_power channel_freq_power_US_BG
[] = {
56 {1, 2412, LBS_TX_PWR_US_DEFAULT
},
57 {2, 2417, LBS_TX_PWR_US_DEFAULT
},
58 {3, 2422, LBS_TX_PWR_US_DEFAULT
},
59 {4, 2427, LBS_TX_PWR_US_DEFAULT
},
60 {5, 2432, LBS_TX_PWR_US_DEFAULT
},
61 {6, 2437, LBS_TX_PWR_US_DEFAULT
},
62 {7, 2442, LBS_TX_PWR_US_DEFAULT
},
63 {8, 2447, LBS_TX_PWR_US_DEFAULT
},
64 {9, 2452, LBS_TX_PWR_US_DEFAULT
},
65 {10, 2457, LBS_TX_PWR_US_DEFAULT
},
66 {11, 2462, LBS_TX_PWR_US_DEFAULT
}
69 /* band: 'B/G', region: Europe ETSI */
70 static struct chan_freq_power channel_freq_power_EU_BG
[] = {
71 {1, 2412, LBS_TX_PWR_EMEA_DEFAULT
},
72 {2, 2417, LBS_TX_PWR_EMEA_DEFAULT
},
73 {3, 2422, LBS_TX_PWR_EMEA_DEFAULT
},
74 {4, 2427, LBS_TX_PWR_EMEA_DEFAULT
},
75 {5, 2432, LBS_TX_PWR_EMEA_DEFAULT
},
76 {6, 2437, LBS_TX_PWR_EMEA_DEFAULT
},
77 {7, 2442, LBS_TX_PWR_EMEA_DEFAULT
},
78 {8, 2447, LBS_TX_PWR_EMEA_DEFAULT
},
79 {9, 2452, LBS_TX_PWR_EMEA_DEFAULT
},
80 {10, 2457, LBS_TX_PWR_EMEA_DEFAULT
},
81 {11, 2462, LBS_TX_PWR_EMEA_DEFAULT
},
82 {12, 2467, LBS_TX_PWR_EMEA_DEFAULT
},
83 {13, 2472, LBS_TX_PWR_EMEA_DEFAULT
}
86 /* band: 'B/G', region: Spain */
87 static struct chan_freq_power channel_freq_power_SPN_BG
[] = {
88 {10, 2457, LBS_TX_PWR_DEFAULT
},
89 {11, 2462, LBS_TX_PWR_DEFAULT
}
92 /* band: 'B/G', region: France */
93 static struct chan_freq_power channel_freq_power_FR_BG
[] = {
94 {10, 2457, LBS_TX_PWR_FR_DEFAULT
},
95 {11, 2462, LBS_TX_PWR_FR_DEFAULT
},
96 {12, 2467, LBS_TX_PWR_FR_DEFAULT
},
97 {13, 2472, LBS_TX_PWR_FR_DEFAULT
}
100 /* band: 'B/G', region: Japan */
101 static struct chan_freq_power channel_freq_power_JPN_BG
[] = {
102 {1, 2412, LBS_TX_PWR_JP_DEFAULT
},
103 {2, 2417, LBS_TX_PWR_JP_DEFAULT
},
104 {3, 2422, LBS_TX_PWR_JP_DEFAULT
},
105 {4, 2427, LBS_TX_PWR_JP_DEFAULT
},
106 {5, 2432, LBS_TX_PWR_JP_DEFAULT
},
107 {6, 2437, LBS_TX_PWR_JP_DEFAULT
},
108 {7, 2442, LBS_TX_PWR_JP_DEFAULT
},
109 {8, 2447, LBS_TX_PWR_JP_DEFAULT
},
110 {9, 2452, LBS_TX_PWR_JP_DEFAULT
},
111 {10, 2457, LBS_TX_PWR_JP_DEFAULT
},
112 {11, 2462, LBS_TX_PWR_JP_DEFAULT
},
113 {12, 2467, LBS_TX_PWR_JP_DEFAULT
},
114 {13, 2472, LBS_TX_PWR_JP_DEFAULT
},
115 {14, 2484, LBS_TX_PWR_JP_DEFAULT
}
119 * the structure for channel, frequency and power
121 struct region_cfp_table
{
123 struct chan_freq_power
*cfp_BG
;
128 * the structure for the mapping between region and CFP
130 static struct region_cfp_table region_cfp_table
[] = {
132 channel_freq_power_US_BG
,
133 ARRAY_SIZE(channel_freq_power_US_BG
),
136 {0x20, /*CANADA IC */
137 channel_freq_power_US_BG
,
138 ARRAY_SIZE(channel_freq_power_US_BG
),
141 {0x30, /*EU*/ channel_freq_power_EU_BG
,
142 ARRAY_SIZE(channel_freq_power_EU_BG
),
145 {0x31, /*SPAIN*/ channel_freq_power_SPN_BG
,
146 ARRAY_SIZE(channel_freq_power_SPN_BG
),
149 {0x32, /*FRANCE*/ channel_freq_power_FR_BG
,
150 ARRAY_SIZE(channel_freq_power_FR_BG
),
153 {0x40, /*JAPAN*/ channel_freq_power_JPN_BG
,
154 ARRAY_SIZE(channel_freq_power_JPN_BG
),
157 /*Add new region here */
161 * the table to keep region code
163 u16 lbs_region_code_to_index
[MRVDRV_MAX_REGION_CODE
] =
164 { 0x10, 0x20, 0x30, 0x31, 0x32, 0x40 };
167 * 802.11b/g supported bitrates (in 500Kb/s units)
169 u8 lbs_bg_rates
[MAX_RATES
] =
170 { 0x02, 0x04, 0x0b, 0x16, 0x0c, 0x12, 0x18, 0x24, 0x30, 0x48, 0x60, 0x6c,
174 * FW rate table. FW refers to rates by their index in this table, not by the
175 * rate value itself. Values of 0x00 are
176 * reserved positions.
178 static u8 fw_data_rates
[MAX_RATES
] =
179 { 0x02, 0x04, 0x0B, 0x16, 0x00, 0x0C, 0x12,
180 0x18, 0x24, 0x30, 0x48, 0x60, 0x6C, 0x00
184 * @brief use index to get the data rate
186 * @param idx The index of data rate
187 * @return data rate or 0
189 u32
lbs_fw_index_to_data_rate(u8 idx
)
191 if (idx
>= sizeof(fw_data_rates
))
193 return fw_data_rates
[idx
];
197 * @brief use rate to get the index
199 * @param rate data rate
202 u8
lbs_data_rate_to_fw_index(u32 rate
)
209 for (i
= 0; i
< sizeof(fw_data_rates
); i
++) {
210 if (rate
== fw_data_rates
[i
])
217 * Attributes exported through sysfs
221 * @brief Get function for sysfs attribute anycast_mask
223 static ssize_t
lbs_anycast_get(struct device
*dev
,
224 struct device_attribute
*attr
, char * buf
)
226 struct lbs_private
*priv
= to_net_dev(dev
)->priv
;
227 struct cmd_ds_mesh_access mesh_access
;
230 memset(&mesh_access
, 0, sizeof(mesh_access
));
232 ret
= lbs_mesh_access(priv
, CMD_ACT_MESH_GET_ANYCAST
, &mesh_access
);
236 return snprintf(buf
, 12, "0x%X\n", le32_to_cpu(mesh_access
.data
[0]));
240 * @brief Set function for sysfs attribute anycast_mask
242 static ssize_t
lbs_anycast_set(struct device
*dev
,
243 struct device_attribute
*attr
, const char * buf
, size_t count
)
245 struct lbs_private
*priv
= to_net_dev(dev
)->priv
;
246 struct cmd_ds_mesh_access mesh_access
;
250 memset(&mesh_access
, 0, sizeof(mesh_access
));
251 sscanf(buf
, "%x", &datum
);
252 mesh_access
.data
[0] = cpu_to_le32(datum
);
254 ret
= lbs_mesh_access(priv
, CMD_ACT_MESH_SET_ANYCAST
, &mesh_access
);
261 static int lbs_add_rtap(struct lbs_private
*priv
);
262 static void lbs_remove_rtap(struct lbs_private
*priv
);
263 static int lbs_add_mesh(struct lbs_private
*priv
);
264 static void lbs_remove_mesh(struct lbs_private
*priv
);
268 * Get function for sysfs attribute rtap
270 static ssize_t
lbs_rtap_get(struct device
*dev
,
271 struct device_attribute
*attr
, char * buf
)
273 struct lbs_private
*priv
= to_net_dev(dev
)->priv
;
274 return snprintf(buf
, 5, "0x%X\n", priv
->monitormode
);
278 * Set function for sysfs attribute rtap
280 static ssize_t
lbs_rtap_set(struct device
*dev
,
281 struct device_attribute
*attr
, const char * buf
, size_t count
)
284 struct lbs_private
*priv
= to_net_dev(dev
)->priv
;
286 sscanf(buf
, "%x", &monitor_mode
);
288 if (priv
->monitormode
== monitor_mode
)
290 if (!priv
->monitormode
) {
291 if (priv
->infra_open
|| priv
->mesh_open
)
293 if (priv
->mode
== IW_MODE_INFRA
)
294 lbs_cmd_80211_deauthenticate(priv
,
295 priv
->curbssparams
.bssid
,
296 WLAN_REASON_DEAUTH_LEAVING
);
297 else if (priv
->mode
== IW_MODE_ADHOC
)
298 lbs_adhoc_stop(priv
);
301 priv
->monitormode
= monitor_mode
;
303 if (!priv
->monitormode
)
305 priv
->monitormode
= 0;
306 lbs_remove_rtap(priv
);
308 if (priv
->currenttxskb
) {
309 dev_kfree_skb_any(priv
->currenttxskb
);
310 priv
->currenttxskb
= NULL
;
313 /* Wake queues, command thread, etc. */
314 lbs_host_to_card_done(priv
);
317 lbs_prepare_and_send_command(priv
,
318 CMD_802_11_MONITOR_MODE
, CMD_ACT_SET
,
319 CMD_OPTION_WAITFORRSP
, 0, &priv
->monitormode
);
324 * lbs_rtap attribute to be exported per ethX interface
325 * through sysfs (/sys/class/net/ethX/lbs_rtap)
327 static DEVICE_ATTR(lbs_rtap
, 0644, lbs_rtap_get
, lbs_rtap_set
);
330 * Get function for sysfs attribute mesh
332 static ssize_t
lbs_mesh_get(struct device
*dev
,
333 struct device_attribute
*attr
, char * buf
)
335 struct lbs_private
*priv
= to_net_dev(dev
)->priv
;
336 return snprintf(buf
, 5, "0x%X\n", !!priv
->mesh_dev
);
340 * Set function for sysfs attribute mesh
342 static ssize_t
lbs_mesh_set(struct device
*dev
,
343 struct device_attribute
*attr
, const char * buf
, size_t count
)
345 struct lbs_private
*priv
= to_net_dev(dev
)->priv
;
347 int ret
, action
= CMD_ACT_MESH_CONFIG_STOP
;
349 sscanf(buf
, "%x", &enable
);
351 if (enable
== !!priv
->mesh_dev
)
354 action
= CMD_ACT_MESH_CONFIG_START
;
355 ret
= lbs_mesh_config(priv
, action
, priv
->curbssparams
.channel
);
362 lbs_remove_mesh(priv
);
368 * lbs_mesh attribute to be exported per ethX interface
369 * through sysfs (/sys/class/net/ethX/lbs_mesh)
371 static DEVICE_ATTR(lbs_mesh
, 0644, lbs_mesh_get
, lbs_mesh_set
);
374 * anycast_mask attribute to be exported per mshX interface
375 * through sysfs (/sys/class/net/mshX/anycast_mask)
377 static DEVICE_ATTR(anycast_mask
, 0644, lbs_anycast_get
, lbs_anycast_set
);
379 static struct attribute
*lbs_mesh_sysfs_entries
[] = {
380 &dev_attr_anycast_mask
.attr
,
384 static struct attribute_group lbs_mesh_attr_group
= {
385 .attrs
= lbs_mesh_sysfs_entries
,
389 * @brief This function opens the ethX or mshX interface
391 * @param dev A pointer to net_device structure
392 * @return 0 or -EBUSY if monitor mode active
394 static int lbs_dev_open(struct net_device
*dev
)
396 struct lbs_private
*priv
= (struct lbs_private
*) dev
->priv
;
399 lbs_deb_enter(LBS_DEB_NET
);
401 spin_lock_irq(&priv
->driver_lock
);
403 if (priv
->monitormode
) {
408 if (dev
== priv
->mesh_dev
) {
410 priv
->mesh_connect_status
= LBS_CONNECTED
;
411 netif_carrier_on(dev
);
413 priv
->infra_open
= 1;
415 if (priv
->connect_status
== LBS_CONNECTED
)
416 netif_carrier_on(dev
);
418 netif_carrier_off(dev
);
421 if (!priv
->tx_pending_len
)
422 netif_wake_queue(dev
);
425 spin_unlock_irq(&priv
->driver_lock
);
426 lbs_deb_leave_args(LBS_DEB_NET
, "ret %d", ret
);
431 * @brief This function closes the mshX interface
433 * @param dev A pointer to net_device structure
436 static int lbs_mesh_stop(struct net_device
*dev
)
438 struct lbs_private
*priv
= (struct lbs_private
*) (dev
->priv
);
440 lbs_deb_enter(LBS_DEB_MESH
);
441 spin_lock_irq(&priv
->driver_lock
);
444 priv
->mesh_connect_status
= LBS_DISCONNECTED
;
446 netif_stop_queue(dev
);
447 netif_carrier_off(dev
);
449 spin_unlock_irq(&priv
->driver_lock
);
451 schedule_work(&priv
->mcast_work
);
453 lbs_deb_leave(LBS_DEB_MESH
);
458 * @brief This function closes the ethX interface
460 * @param dev A pointer to net_device structure
463 static int lbs_eth_stop(struct net_device
*dev
)
465 struct lbs_private
*priv
= (struct lbs_private
*) dev
->priv
;
467 lbs_deb_enter(LBS_DEB_NET
);
469 spin_lock_irq(&priv
->driver_lock
);
470 priv
->infra_open
= 0;
471 netif_stop_queue(dev
);
472 spin_unlock_irq(&priv
->driver_lock
);
474 schedule_work(&priv
->mcast_work
);
476 lbs_deb_leave(LBS_DEB_NET
);
480 static void lbs_tx_timeout(struct net_device
*dev
)
482 struct lbs_private
*priv
= (struct lbs_private
*) dev
->priv
;
484 lbs_deb_enter(LBS_DEB_TX
);
486 lbs_pr_err("tx watch dog timeout\n");
488 dev
->trans_start
= jiffies
;
490 if (priv
->currenttxskb
)
491 lbs_send_tx_feedback(priv
, 0);
493 /* XX: Shouldn't we also call into the hw-specific driver
494 to kick it somehow? */
495 lbs_host_to_card_done(priv
);
497 /* More often than not, this actually happens because the
498 firmware has crapped itself -- rather than just a very
499 busy medium. So send a harmless command, and if/when
500 _that_ times out, we'll kick it in the head. */
501 lbs_prepare_and_send_command(priv
, CMD_802_11_RSSI
, 0,
504 lbs_deb_leave(LBS_DEB_TX
);
507 void lbs_host_to_card_done(struct lbs_private
*priv
)
511 lbs_deb_enter(LBS_DEB_THREAD
);
513 spin_lock_irqsave(&priv
->driver_lock
, flags
);
515 priv
->dnld_sent
= DNLD_RES_RECEIVED
;
517 /* Wake main thread if commands are pending */
518 if (!priv
->cur_cmd
|| priv
->tx_pending_len
> 0)
519 wake_up_interruptible(&priv
->waitq
);
521 spin_unlock_irqrestore(&priv
->driver_lock
, flags
);
522 lbs_deb_leave(LBS_DEB_THREAD
);
524 EXPORT_SYMBOL_GPL(lbs_host_to_card_done
);
527 * @brief This function returns the network statistics
529 * @param dev A pointer to struct lbs_private structure
530 * @return A pointer to net_device_stats structure
532 static struct net_device_stats
*lbs_get_stats(struct net_device
*dev
)
534 struct lbs_private
*priv
= (struct lbs_private
*) dev
->priv
;
536 lbs_deb_enter(LBS_DEB_NET
);
540 static int lbs_set_mac_address(struct net_device
*dev
, void *addr
)
543 struct lbs_private
*priv
= (struct lbs_private
*) dev
->priv
;
544 struct sockaddr
*phwaddr
= addr
;
545 struct cmd_ds_802_11_mac_address cmd
;
547 lbs_deb_enter(LBS_DEB_NET
);
549 /* In case it was called from the mesh device */
552 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
));
553 cmd
.action
= cpu_to_le16(CMD_ACT_SET
);
554 memcpy(cmd
.macadd
, phwaddr
->sa_data
, ETH_ALEN
);
556 ret
= lbs_cmd_with_response(priv
, CMD_802_11_MAC_ADDRESS
, &cmd
);
558 lbs_deb_net("set MAC address failed\n");
562 memcpy(priv
->current_addr
, phwaddr
->sa_data
, ETH_ALEN
);
563 memcpy(dev
->dev_addr
, phwaddr
->sa_data
, ETH_ALEN
);
565 memcpy(priv
->mesh_dev
->dev_addr
, phwaddr
->sa_data
, ETH_ALEN
);
568 lbs_deb_leave_args(LBS_DEB_NET
, "ret %d", ret
);
573 static inline int mac_in_list(unsigned char *list
, int list_len
,
577 if (!memcmp(list
, mac
, ETH_ALEN
))
586 static int lbs_add_mcast_addrs(struct cmd_ds_mac_multicast_adr
*cmd
,
587 struct net_device
*dev
, int nr_addrs
)
590 struct dev_mc_list
*mc_list
;
592 if ((dev
->flags
& (IFF_UP
|IFF_MULTICAST
)) != (IFF_UP
|IFF_MULTICAST
))
595 netif_addr_lock_bh(dev
);
596 for (mc_list
= dev
->mc_list
; mc_list
; mc_list
= mc_list
->next
) {
597 if (mac_in_list(cmd
->maclist
, nr_addrs
, mc_list
->dmi_addr
)) {
598 lbs_deb_net("mcast address %s:%pM skipped\n", dev
->name
,
603 if (i
== MRVDRV_MAX_MULTICAST_LIST_SIZE
)
605 memcpy(&cmd
->maclist
[6*i
], mc_list
->dmi_addr
, ETH_ALEN
);
606 lbs_deb_net("mcast address %s:%pM added to filter\n", dev
->name
,
610 netif_addr_unlock_bh(dev
);
617 static void lbs_set_mcast_worker(struct work_struct
*work
)
619 struct lbs_private
*priv
= container_of(work
, struct lbs_private
, mcast_work
);
620 struct cmd_ds_mac_multicast_adr mcast_cmd
;
623 int old_mac_control
= priv
->mac_control
;
625 lbs_deb_enter(LBS_DEB_NET
);
627 dev_flags
= priv
->dev
->flags
;
629 dev_flags
|= priv
->mesh_dev
->flags
;
631 if (dev_flags
& IFF_PROMISC
) {
632 priv
->mac_control
|= CMD_ACT_MAC_PROMISCUOUS_ENABLE
;
633 priv
->mac_control
&= ~(CMD_ACT_MAC_ALL_MULTICAST_ENABLE
|
634 CMD_ACT_MAC_MULTICAST_ENABLE
);
635 goto out_set_mac_control
;
636 } else if (dev_flags
& IFF_ALLMULTI
) {
638 priv
->mac_control
|= CMD_ACT_MAC_ALL_MULTICAST_ENABLE
;
639 priv
->mac_control
&= ~(CMD_ACT_MAC_PROMISCUOUS_ENABLE
|
640 CMD_ACT_MAC_MULTICAST_ENABLE
);
641 goto out_set_mac_control
;
644 /* Once for priv->dev, again for priv->mesh_dev if it exists */
645 nr_addrs
= lbs_add_mcast_addrs(&mcast_cmd
, priv
->dev
, 0);
646 if (nr_addrs
>= 0 && priv
->mesh_dev
)
647 nr_addrs
= lbs_add_mcast_addrs(&mcast_cmd
, priv
->mesh_dev
, nr_addrs
);
652 int size
= offsetof(struct cmd_ds_mac_multicast_adr
,
653 maclist
[6*nr_addrs
]);
655 mcast_cmd
.action
= cpu_to_le16(CMD_ACT_SET
);
656 mcast_cmd
.hdr
.size
= cpu_to_le16(size
);
657 mcast_cmd
.nr_of_adrs
= cpu_to_le16(nr_addrs
);
659 lbs_cmd_async(priv
, CMD_MAC_MULTICAST_ADR
, &mcast_cmd
.hdr
, size
);
661 priv
->mac_control
|= CMD_ACT_MAC_MULTICAST_ENABLE
;
663 priv
->mac_control
&= ~CMD_ACT_MAC_MULTICAST_ENABLE
;
665 priv
->mac_control
&= ~(CMD_ACT_MAC_PROMISCUOUS_ENABLE
|
666 CMD_ACT_MAC_ALL_MULTICAST_ENABLE
);
668 if (priv
->mac_control
!= old_mac_control
)
669 lbs_set_mac_control(priv
);
671 lbs_deb_leave(LBS_DEB_NET
);
674 static void lbs_set_multicast_list(struct net_device
*dev
)
676 struct lbs_private
*priv
= dev
->priv
;
678 schedule_work(&priv
->mcast_work
);
682 * @brief This function handles the major jobs in the LBS driver.
683 * It handles all events generated by firmware, RX data received
684 * from firmware and TX data sent from kernel.
686 * @param data A pointer to lbs_thread structure
689 static int lbs_thread(void *data
)
691 struct net_device
*dev
= data
;
692 struct lbs_private
*priv
= dev
->priv
;
695 lbs_deb_enter(LBS_DEB_THREAD
);
697 init_waitqueue_entry(&wait
, current
);
703 lbs_deb_thread("1: currenttxskb %p, dnld_sent %d\n",
704 priv
->currenttxskb
, priv
->dnld_sent
);
706 add_wait_queue(&priv
->waitq
, &wait
);
707 set_current_state(TASK_INTERRUPTIBLE
);
708 spin_lock_irq(&priv
->driver_lock
);
710 if (kthread_should_stop())
711 shouldsleep
= 0; /* Bye */
712 else if (priv
->surpriseremoved
)
713 shouldsleep
= 1; /* We need to wait until we're _told_ to die */
714 else if (priv
->psstate
== PS_STATE_SLEEP
)
715 shouldsleep
= 1; /* Sleep mode. Nothing we can do till it wakes */
716 else if (priv
->cmd_timed_out
)
717 shouldsleep
= 0; /* Command timed out. Recover */
718 else if (!priv
->fw_ready
)
719 shouldsleep
= 1; /* Firmware not ready. We're waiting for it */
720 else if (priv
->dnld_sent
)
721 shouldsleep
= 1; /* Something is en route to the device already */
722 else if (priv
->tx_pending_len
> 0)
723 shouldsleep
= 0; /* We've a packet to send */
724 else if (priv
->resp_len
[priv
->resp_idx
])
725 shouldsleep
= 0; /* We have a command response */
726 else if (priv
->cur_cmd
)
727 shouldsleep
= 1; /* Can't send a command; one already running */
728 else if (!list_empty(&priv
->cmdpendingq
))
729 shouldsleep
= 0; /* We have a command to send */
730 else if (__kfifo_len(priv
->event_fifo
))
731 shouldsleep
= 0; /* We have an event to process */
733 shouldsleep
= 1; /* No command */
736 lbs_deb_thread("sleeping, connect_status %d, "
737 "psmode %d, psstate %d\n",
738 priv
->connect_status
,
739 priv
->psmode
, priv
->psstate
);
740 spin_unlock_irq(&priv
->driver_lock
);
743 spin_unlock_irq(&priv
->driver_lock
);
745 lbs_deb_thread("2: currenttxskb %p, dnld_send %d\n",
746 priv
->currenttxskb
, priv
->dnld_sent
);
748 set_current_state(TASK_RUNNING
);
749 remove_wait_queue(&priv
->waitq
, &wait
);
751 lbs_deb_thread("3: currenttxskb %p, dnld_sent %d\n",
752 priv
->currenttxskb
, priv
->dnld_sent
);
754 if (kthread_should_stop()) {
755 lbs_deb_thread("break from main thread\n");
759 if (priv
->surpriseremoved
) {
760 lbs_deb_thread("adapter removed; waiting to die...\n");
764 lbs_deb_thread("4: currenttxskb %p, dnld_sent %d\n",
765 priv
->currenttxskb
, priv
->dnld_sent
);
767 /* Process any pending command response */
768 spin_lock_irq(&priv
->driver_lock
);
769 resp_idx
= priv
->resp_idx
;
770 if (priv
->resp_len
[resp_idx
]) {
771 spin_unlock_irq(&priv
->driver_lock
);
772 lbs_process_command_response(priv
,
773 priv
->resp_buf
[resp_idx
],
774 priv
->resp_len
[resp_idx
]);
775 spin_lock_irq(&priv
->driver_lock
);
776 priv
->resp_len
[resp_idx
] = 0;
778 spin_unlock_irq(&priv
->driver_lock
);
780 /* command timeout stuff */
781 if (priv
->cmd_timed_out
&& priv
->cur_cmd
) {
782 struct cmd_ctrl_node
*cmdnode
= priv
->cur_cmd
;
784 if (++priv
->nr_retries
> 3) {
785 lbs_pr_info("Excessive timeouts submitting "
787 le16_to_cpu(cmdnode
->cmdbuf
->command
));
788 lbs_complete_command(priv
, cmdnode
, -ETIMEDOUT
);
789 priv
->nr_retries
= 0;
790 if (priv
->reset_card
)
791 priv
->reset_card(priv
);
793 priv
->cur_cmd
= NULL
;
794 priv
->dnld_sent
= DNLD_RES_RECEIVED
;
795 lbs_pr_info("requeueing command 0x%04x due "
796 "to timeout (#%d)\n",
797 le16_to_cpu(cmdnode
->cmdbuf
->command
),
800 /* Stick it back at the _top_ of the pending queue
801 for immediate resubmission */
802 list_add(&cmdnode
->list
, &priv
->cmdpendingq
);
805 priv
->cmd_timed_out
= 0;
807 /* Process hardware events, e.g. card removed, link lost */
808 spin_lock_irq(&priv
->driver_lock
);
809 while (__kfifo_len(priv
->event_fifo
)) {
812 __kfifo_get(priv
->event_fifo
, (unsigned char *) &event
,
814 spin_unlock_irq(&priv
->driver_lock
);
815 lbs_process_event(priv
, event
);
816 spin_lock_irq(&priv
->driver_lock
);
818 spin_unlock_irq(&priv
->driver_lock
);
823 /* Check if we need to confirm Sleep Request received previously */
824 if (priv
->psstate
== PS_STATE_PRE_SLEEP
&&
825 !priv
->dnld_sent
&& !priv
->cur_cmd
) {
826 if (priv
->connect_status
== LBS_CONNECTED
) {
827 lbs_deb_thread("pre-sleep, currenttxskb %p, "
828 "dnld_sent %d, cur_cmd %p\n",
829 priv
->currenttxskb
, priv
->dnld_sent
,
832 lbs_ps_confirm_sleep(priv
);
834 /* workaround for firmware sending
835 * deauth/linkloss event immediately
836 * after sleep request; remove this
837 * after firmware fixes it
839 priv
->psstate
= PS_STATE_AWAKE
;
840 lbs_pr_alert("ignore PS_SleepConfirm in "
841 "non-connected state\n");
845 /* The PS state is changed during processing of Sleep Request
848 if ((priv
->psstate
== PS_STATE_SLEEP
) ||
849 (priv
->psstate
== PS_STATE_PRE_SLEEP
))
852 /* Execute the next command */
853 if (!priv
->dnld_sent
&& !priv
->cur_cmd
)
854 lbs_execute_next_command(priv
);
856 /* Wake-up command waiters which can't sleep in
857 * lbs_prepare_and_send_command
859 if (!list_empty(&priv
->cmdpendingq
))
860 wake_up_all(&priv
->cmd_pending
);
862 spin_lock_irq(&priv
->driver_lock
);
863 if (!priv
->dnld_sent
&& priv
->tx_pending_len
> 0) {
864 int ret
= priv
->hw_host_to_card(priv
, MVMS_DAT
,
865 priv
->tx_pending_buf
,
866 priv
->tx_pending_len
);
868 lbs_deb_tx("host_to_card failed %d\n", ret
);
869 priv
->dnld_sent
= DNLD_RES_RECEIVED
;
871 priv
->tx_pending_len
= 0;
872 if (!priv
->currenttxskb
) {
873 /* We can wake the queues immediately if we aren't
874 waiting for TX feedback */
875 if (priv
->connect_status
== LBS_CONNECTED
)
876 netif_wake_queue(priv
->dev
);
877 if (priv
->mesh_dev
&&
878 priv
->mesh_connect_status
== LBS_CONNECTED
)
879 netif_wake_queue(priv
->mesh_dev
);
882 spin_unlock_irq(&priv
->driver_lock
);
885 del_timer(&priv
->command_timer
);
886 wake_up_all(&priv
->cmd_pending
);
888 lbs_deb_leave(LBS_DEB_THREAD
);
892 static int lbs_suspend_callback(struct lbs_private
*priv
, unsigned long dummy
,
893 struct cmd_header
*cmd
)
895 lbs_deb_enter(LBS_DEB_FW
);
897 netif_device_detach(priv
->dev
);
899 netif_device_detach(priv
->mesh_dev
);
902 lbs_deb_leave(LBS_DEB_FW
);
906 int lbs_suspend(struct lbs_private
*priv
)
908 struct cmd_header cmd
;
911 lbs_deb_enter(LBS_DEB_FW
);
913 if (priv
->wol_criteria
== 0xffffffff) {
914 lbs_pr_info("Suspend attempt without configuring wake params!\n");
918 memset(&cmd
, 0, sizeof(cmd
));
920 ret
= __lbs_cmd(priv
, CMD_802_11_HOST_SLEEP_ACTIVATE
, &cmd
,
921 sizeof(cmd
), lbs_suspend_callback
, 0);
923 lbs_pr_info("HOST_SLEEP_ACTIVATE failed: %d\n", ret
);
925 lbs_deb_leave_args(LBS_DEB_FW
, "ret %d", ret
);
928 EXPORT_SYMBOL_GPL(lbs_suspend
);
930 void lbs_resume(struct lbs_private
*priv
)
932 lbs_deb_enter(LBS_DEB_FW
);
936 /* Firmware doesn't seem to give us RX packets any more
937 until we send it some command. Might as well update */
938 lbs_prepare_and_send_command(priv
, CMD_802_11_RSSI
, 0,
941 netif_device_attach(priv
->dev
);
943 netif_device_attach(priv
->mesh_dev
);
945 lbs_deb_leave(LBS_DEB_FW
);
947 EXPORT_SYMBOL_GPL(lbs_resume
);
950 * @brief This function downloads firmware image, gets
951 * HW spec from firmware and set basic parameters to
954 * @param priv A pointer to struct lbs_private structure
957 static int lbs_setup_firmware(struct lbs_private
*priv
)
960 s16 curlevel
= 0, minlevel
= 0, maxlevel
= 0;
962 lbs_deb_enter(LBS_DEB_FW
);
964 /* Read MAC address from firmware */
965 memset(priv
->current_addr
, 0xff, ETH_ALEN
);
966 ret
= lbs_update_hw_spec(priv
);
970 /* Read power levels if available */
971 ret
= lbs_get_tx_power(priv
, &curlevel
, &minlevel
, &maxlevel
);
973 priv
->txpower_cur
= curlevel
;
974 priv
->txpower_min
= minlevel
;
975 priv
->txpower_max
= maxlevel
;
978 lbs_set_mac_control(priv
);
980 lbs_deb_leave_args(LBS_DEB_FW
, "ret %d", ret
);
985 * This function handles the timeout of command sending.
986 * It will re-send the same command again.
988 static void command_timer_fn(unsigned long data
)
990 struct lbs_private
*priv
= (struct lbs_private
*)data
;
993 lbs_deb_enter(LBS_DEB_CMD
);
994 spin_lock_irqsave(&priv
->driver_lock
, flags
);
999 lbs_pr_info("command 0x%04x timed out\n",
1000 le16_to_cpu(priv
->cur_cmd
->cmdbuf
->command
));
1002 priv
->cmd_timed_out
= 1;
1003 wake_up_interruptible(&priv
->waitq
);
1005 spin_unlock_irqrestore(&priv
->driver_lock
, flags
);
1006 lbs_deb_leave(LBS_DEB_CMD
);
1009 static void lbs_sync_channel_worker(struct work_struct
*work
)
1011 struct lbs_private
*priv
= container_of(work
, struct lbs_private
,
1014 lbs_deb_enter(LBS_DEB_MAIN
);
1015 if (lbs_update_channel(priv
))
1016 lbs_pr_info("Channel synchronization failed.");
1017 lbs_deb_leave(LBS_DEB_MAIN
);
1021 static int lbs_init_adapter(struct lbs_private
*priv
)
1026 lbs_deb_enter(LBS_DEB_MAIN
);
1028 /* Allocate buffer to store the BSSID list */
1029 bufsize
= MAX_NETWORK_COUNT
* sizeof(struct bss_descriptor
);
1030 priv
->networks
= kzalloc(bufsize
, GFP_KERNEL
);
1031 if (!priv
->networks
) {
1032 lbs_pr_err("Out of memory allocating beacons\n");
1037 /* Initialize scan result lists */
1038 INIT_LIST_HEAD(&priv
->network_free_list
);
1039 INIT_LIST_HEAD(&priv
->network_list
);
1040 for (i
= 0; i
< MAX_NETWORK_COUNT
; i
++) {
1041 list_add_tail(&priv
->networks
[i
].list
,
1042 &priv
->network_free_list
);
1045 memset(priv
->current_addr
, 0xff, ETH_ALEN
);
1047 priv
->connect_status
= LBS_DISCONNECTED
;
1048 priv
->mesh_connect_status
= LBS_DISCONNECTED
;
1049 priv
->secinfo
.auth_mode
= IW_AUTH_ALG_OPEN_SYSTEM
;
1050 priv
->mode
= IW_MODE_INFRA
;
1051 priv
->curbssparams
.channel
= DEFAULT_AD_HOC_CHANNEL
;
1052 priv
->mac_control
= CMD_ACT_MAC_RX_ON
| CMD_ACT_MAC_TX_ON
;
1054 priv
->enablehwauto
= 1;
1055 priv
->capability
= WLAN_CAPABILITY_SHORT_PREAMBLE
;
1056 priv
->psmode
= LBS802_11POWERMODECAM
;
1057 priv
->psstate
= PS_STATE_FULL_POWER
;
1059 mutex_init(&priv
->lock
);
1061 setup_timer(&priv
->command_timer
, command_timer_fn
,
1062 (unsigned long)priv
);
1064 INIT_LIST_HEAD(&priv
->cmdfreeq
);
1065 INIT_LIST_HEAD(&priv
->cmdpendingq
);
1067 spin_lock_init(&priv
->driver_lock
);
1068 init_waitqueue_head(&priv
->cmd_pending
);
1070 /* Allocate the command buffers */
1071 if (lbs_allocate_cmd_buffer(priv
)) {
1072 lbs_pr_err("Out of memory allocating command buffers\n");
1077 priv
->resp_len
[0] = priv
->resp_len
[1] = 0;
1079 /* Create the event FIFO */
1080 priv
->event_fifo
= kfifo_alloc(sizeof(u32
) * 16, GFP_KERNEL
, NULL
);
1081 if (IS_ERR(priv
->event_fifo
)) {
1082 lbs_pr_err("Out of memory allocating event FIFO buffer\n");
1088 lbs_deb_leave_args(LBS_DEB_MAIN
, "ret %d", ret
);
1093 static void lbs_free_adapter(struct lbs_private
*priv
)
1095 lbs_deb_enter(LBS_DEB_MAIN
);
1097 lbs_free_cmd_buffer(priv
);
1098 if (priv
->event_fifo
)
1099 kfifo_free(priv
->event_fifo
);
1100 del_timer(&priv
->command_timer
);
1101 kfree(priv
->networks
);
1102 priv
->networks
= NULL
;
1104 lbs_deb_leave(LBS_DEB_MAIN
);
1108 * @brief This function adds the card. it will probe the
1109 * card, allocate the lbs_priv and initialize the device.
1111 * @param card A pointer to card
1112 * @return A pointer to struct lbs_private structure
1114 struct lbs_private
*lbs_add_card(void *card
, struct device
*dmdev
)
1116 struct net_device
*dev
= NULL
;
1117 struct lbs_private
*priv
= NULL
;
1119 lbs_deb_enter(LBS_DEB_MAIN
);
1121 /* Allocate an Ethernet device and register it */
1122 dev
= alloc_etherdev(sizeof(struct lbs_private
));
1124 lbs_pr_err("init ethX device failed\n");
1129 if (lbs_init_adapter(priv
)) {
1130 lbs_pr_err("failed to initialize adapter structure.\n");
1131 goto err_init_adapter
;
1136 priv
->mesh_open
= 0;
1137 priv
->infra_open
= 0;
1139 /* Setup the OS Interface to our functions */
1140 dev
->open
= lbs_dev_open
;
1141 dev
->hard_start_xmit
= lbs_hard_start_xmit
;
1142 dev
->stop
= lbs_eth_stop
;
1143 dev
->set_mac_address
= lbs_set_mac_address
;
1144 dev
->tx_timeout
= lbs_tx_timeout
;
1145 dev
->get_stats
= lbs_get_stats
;
1146 dev
->watchdog_timeo
= 5 * HZ
;
1147 dev
->ethtool_ops
= &lbs_ethtool_ops
;
1149 dev
->wireless_handlers
= (struct iw_handler_def
*)&lbs_handler_def
;
1151 dev
->flags
|= IFF_BROADCAST
| IFF_MULTICAST
;
1152 dev
->set_multicast_list
= lbs_set_multicast_list
;
1154 SET_NETDEV_DEV(dev
, dmdev
);
1156 priv
->rtap_net_dev
= NULL
;
1158 lbs_deb_thread("Starting main thread...\n");
1159 init_waitqueue_head(&priv
->waitq
);
1160 priv
->main_thread
= kthread_run(lbs_thread
, dev
, "lbs_main");
1161 if (IS_ERR(priv
->main_thread
)) {
1162 lbs_deb_thread("Error creating main thread.\n");
1163 goto err_init_adapter
;
1166 priv
->work_thread
= create_singlethread_workqueue("lbs_worker");
1167 INIT_DELAYED_WORK(&priv
->assoc_work
, lbs_association_worker
);
1168 INIT_DELAYED_WORK(&priv
->scan_work
, lbs_scan_worker
);
1169 INIT_WORK(&priv
->mcast_work
, lbs_set_mcast_worker
);
1170 INIT_WORK(&priv
->sync_channel
, lbs_sync_channel_worker
);
1172 sprintf(priv
->mesh_ssid
, "mesh");
1173 priv
->mesh_ssid_len
= 4;
1175 priv
->wol_criteria
= 0xffffffff;
1176 priv
->wol_gpio
= 0xff;
1181 lbs_free_adapter(priv
);
1186 lbs_deb_leave_args(LBS_DEB_MAIN
, "priv %p", priv
);
1189 EXPORT_SYMBOL_GPL(lbs_add_card
);
1192 void lbs_remove_card(struct lbs_private
*priv
)
1194 struct net_device
*dev
= priv
->dev
;
1195 union iwreq_data wrqu
;
1197 lbs_deb_enter(LBS_DEB_MAIN
);
1199 lbs_remove_mesh(priv
);
1200 lbs_remove_rtap(priv
);
1204 cancel_delayed_work_sync(&priv
->scan_work
);
1205 cancel_delayed_work_sync(&priv
->assoc_work
);
1206 cancel_work_sync(&priv
->mcast_work
);
1208 /* worker thread destruction blocks on the in-flight command which
1209 * should have been cleared already in lbs_stop_card().
1211 lbs_deb_main("destroying worker thread\n");
1212 destroy_workqueue(priv
->work_thread
);
1213 lbs_deb_main("done destroying worker thread\n");
1215 if (priv
->psmode
== LBS802_11POWERMODEMAX_PSP
) {
1216 priv
->psmode
= LBS802_11POWERMODECAM
;
1217 lbs_ps_wakeup(priv
, CMD_OPTION_WAITFORRSP
);
1220 memset(wrqu
.ap_addr
.sa_data
, 0xaa, ETH_ALEN
);
1221 wrqu
.ap_addr
.sa_family
= ARPHRD_ETHER
;
1222 wireless_send_event(priv
->dev
, SIOCGIWAP
, &wrqu
, NULL
);
1224 /* Stop the thread servicing the interrupts */
1225 priv
->surpriseremoved
= 1;
1226 kthread_stop(priv
->main_thread
);
1228 lbs_free_adapter(priv
);
1233 lbs_deb_leave(LBS_DEB_MAIN
);
1235 EXPORT_SYMBOL_GPL(lbs_remove_card
);
1238 int lbs_start_card(struct lbs_private
*priv
)
1240 struct net_device
*dev
= priv
->dev
;
1243 lbs_deb_enter(LBS_DEB_MAIN
);
1245 /* poke the firmware */
1246 ret
= lbs_setup_firmware(priv
);
1253 if (register_netdev(dev
)) {
1254 lbs_pr_err("cannot register ethX device\n");
1258 lbs_update_channel(priv
);
1260 /* 5.0.16p0 is known to NOT support any mesh */
1261 if (priv
->fwrelease
> 0x05001000) {
1262 /* Enable mesh, if supported, and work out which TLV it uses.
1263 0x100 + 291 is an unofficial value used in 5.110.20.pXX
1264 0x100 + 37 is the official value used in 5.110.21.pXX
1265 but we check them in that order because 20.pXX doesn't
1266 give an error -- it just silently fails. */
1268 /* 5.110.20.pXX firmware will fail the command if the channel
1269 doesn't match the existing channel. But only if the TLV
1270 is correct. If the channel is wrong, _BOTH_ versions will
1271 give an error to 0x100+291, and allow 0x100+37 to succeed.
1272 It's just that 5.110.20.pXX will not have done anything
1275 priv
->mesh_tlv
= 0x100 + 291;
1276 if (lbs_mesh_config(priv
, CMD_ACT_MESH_CONFIG_START
,
1277 priv
->curbssparams
.channel
)) {
1278 priv
->mesh_tlv
= 0x100 + 37;
1279 if (lbs_mesh_config(priv
, CMD_ACT_MESH_CONFIG_START
,
1280 priv
->curbssparams
.channel
))
1283 if (priv
->mesh_tlv
) {
1286 if (device_create_file(&dev
->dev
, &dev_attr_lbs_mesh
))
1287 lbs_pr_err("cannot register lbs_mesh attribute\n");
1289 /* While rtap isn't related to mesh, only mesh-enabled
1290 * firmware implements the rtap functionality via
1291 * CMD_802_11_MONITOR_MODE.
1293 if (device_create_file(&dev
->dev
, &dev_attr_lbs_rtap
))
1294 lbs_pr_err("cannot register lbs_rtap attribute\n");
1298 lbs_debugfs_init_one(priv
, dev
);
1300 lbs_pr_info("%s: Marvell WLAN 802.11 adapter\n", dev
->name
);
1305 lbs_deb_leave_args(LBS_DEB_MAIN
, "ret %d", ret
);
1308 EXPORT_SYMBOL_GPL(lbs_start_card
);
1311 void lbs_stop_card(struct lbs_private
*priv
)
1313 struct net_device
*dev
= priv
->dev
;
1314 struct cmd_ctrl_node
*cmdnode
;
1315 unsigned long flags
;
1317 lbs_deb_enter(LBS_DEB_MAIN
);
1322 netif_stop_queue(priv
->dev
);
1323 netif_carrier_off(priv
->dev
);
1325 lbs_debugfs_remove_one(priv
);
1326 if (priv
->mesh_tlv
) {
1327 device_remove_file(&dev
->dev
, &dev_attr_lbs_mesh
);
1328 device_remove_file(&dev
->dev
, &dev_attr_lbs_rtap
);
1331 /* Delete the timeout of the currently processing command */
1332 del_timer_sync(&priv
->command_timer
);
1334 /* Flush pending command nodes */
1335 spin_lock_irqsave(&priv
->driver_lock
, flags
);
1336 lbs_deb_main("clearing pending commands\n");
1337 list_for_each_entry(cmdnode
, &priv
->cmdpendingq
, list
) {
1338 cmdnode
->result
= -ENOENT
;
1339 cmdnode
->cmdwaitqwoken
= 1;
1340 wake_up_interruptible(&cmdnode
->cmdwait_q
);
1343 /* Flush the command the card is currently processing */
1344 if (priv
->cur_cmd
) {
1345 lbs_deb_main("clearing current command\n");
1346 priv
->cur_cmd
->result
= -ENOENT
;
1347 priv
->cur_cmd
->cmdwaitqwoken
= 1;
1348 wake_up_interruptible(&priv
->cur_cmd
->cmdwait_q
);
1350 lbs_deb_main("done clearing commands\n");
1351 spin_unlock_irqrestore(&priv
->driver_lock
, flags
);
1353 unregister_netdev(dev
);
1356 lbs_deb_leave(LBS_DEB_MAIN
);
1358 EXPORT_SYMBOL_GPL(lbs_stop_card
);
1362 * @brief This function adds mshX interface
1364 * @param priv A pointer to the struct lbs_private structure
1365 * @return 0 if successful, -X otherwise
1367 static int lbs_add_mesh(struct lbs_private
*priv
)
1369 struct net_device
*mesh_dev
= NULL
;
1372 lbs_deb_enter(LBS_DEB_MESH
);
1374 /* Allocate a virtual mesh device */
1375 if (!(mesh_dev
= alloc_netdev(0, "msh%d", ether_setup
))) {
1376 lbs_deb_mesh("init mshX device failed\n");
1380 mesh_dev
->priv
= priv
;
1381 priv
->mesh_dev
= mesh_dev
;
1383 mesh_dev
->open
= lbs_dev_open
;
1384 mesh_dev
->hard_start_xmit
= lbs_hard_start_xmit
;
1385 mesh_dev
->stop
= lbs_mesh_stop
;
1386 mesh_dev
->get_stats
= lbs_get_stats
;
1387 mesh_dev
->set_mac_address
= lbs_set_mac_address
;
1388 mesh_dev
->ethtool_ops
= &lbs_ethtool_ops
;
1389 memcpy(mesh_dev
->dev_addr
, priv
->dev
->dev_addr
,
1390 sizeof(priv
->dev
->dev_addr
));
1392 SET_NETDEV_DEV(priv
->mesh_dev
, priv
->dev
->dev
.parent
);
1395 mesh_dev
->wireless_handlers
= (struct iw_handler_def
*)&mesh_handler_def
;
1397 mesh_dev
->flags
|= IFF_BROADCAST
| IFF_MULTICAST
;
1398 mesh_dev
->set_multicast_list
= lbs_set_multicast_list
;
1399 /* Register virtual mesh interface */
1400 ret
= register_netdev(mesh_dev
);
1402 lbs_pr_err("cannot register mshX virtual interface\n");
1406 ret
= sysfs_create_group(&(mesh_dev
->dev
.kobj
), &lbs_mesh_attr_group
);
1408 goto err_unregister
;
1410 lbs_persist_config_init(mesh_dev
);
1412 /* Everything successful */
1417 unregister_netdev(mesh_dev
);
1420 free_netdev(mesh_dev
);
1423 lbs_deb_leave_args(LBS_DEB_MESH
, "ret %d", ret
);
1427 static void lbs_remove_mesh(struct lbs_private
*priv
)
1429 struct net_device
*mesh_dev
;
1432 mesh_dev
= priv
->mesh_dev
;
1436 lbs_deb_enter(LBS_DEB_MESH
);
1437 netif_stop_queue(mesh_dev
);
1438 netif_carrier_off(mesh_dev
);
1439 sysfs_remove_group(&(mesh_dev
->dev
.kobj
), &lbs_mesh_attr_group
);
1440 lbs_persist_config_remove(mesh_dev
);
1441 unregister_netdev(mesh_dev
);
1442 priv
->mesh_dev
= NULL
;
1443 free_netdev(mesh_dev
);
1444 lbs_deb_leave(LBS_DEB_MESH
);
1448 * @brief This function finds the CFP in
1449 * region_cfp_table based on region and band parameter.
1451 * @param region The region code
1452 * @param band The band
1453 * @param cfp_no A pointer to CFP number
1454 * @return A pointer to CFP
1456 struct chan_freq_power
*lbs_get_region_cfp_table(u8 region
, int *cfp_no
)
1460 lbs_deb_enter(LBS_DEB_MAIN
);
1462 end
= ARRAY_SIZE(region_cfp_table
);
1464 for (i
= 0; i
< end
; i
++) {
1465 lbs_deb_main("region_cfp_table[i].region=%d\n",
1466 region_cfp_table
[i
].region
);
1467 if (region_cfp_table
[i
].region
== region
) {
1468 *cfp_no
= region_cfp_table
[i
].cfp_no_BG
;
1469 lbs_deb_leave(LBS_DEB_MAIN
);
1470 return region_cfp_table
[i
].cfp_BG
;
1474 lbs_deb_leave_args(LBS_DEB_MAIN
, "ret NULL");
1478 int lbs_set_regiontable(struct lbs_private
*priv
, u8 region
, u8 band
)
1483 struct chan_freq_power
*cfp
;
1486 lbs_deb_enter(LBS_DEB_MAIN
);
1488 memset(priv
->region_channel
, 0, sizeof(priv
->region_channel
));
1490 cfp
= lbs_get_region_cfp_table(region
, &cfp_no
);
1492 priv
->region_channel
[i
].nrcfp
= cfp_no
;
1493 priv
->region_channel
[i
].CFP
= cfp
;
1495 lbs_deb_main("wrong region code %#x in band B/G\n",
1500 priv
->region_channel
[i
].valid
= 1;
1501 priv
->region_channel
[i
].region
= region
;
1502 priv
->region_channel
[i
].band
= band
;
1505 lbs_deb_leave_args(LBS_DEB_MAIN
, "ret %d", ret
);
1509 void lbs_queue_event(struct lbs_private
*priv
, u32 event
)
1511 unsigned long flags
;
1513 lbs_deb_enter(LBS_DEB_THREAD
);
1514 spin_lock_irqsave(&priv
->driver_lock
, flags
);
1516 if (priv
->psstate
== PS_STATE_SLEEP
)
1517 priv
->psstate
= PS_STATE_AWAKE
;
1519 __kfifo_put(priv
->event_fifo
, (unsigned char *) &event
, sizeof(u32
));
1521 wake_up_interruptible(&priv
->waitq
);
1523 spin_unlock_irqrestore(&priv
->driver_lock
, flags
);
1524 lbs_deb_leave(LBS_DEB_THREAD
);
1526 EXPORT_SYMBOL_GPL(lbs_queue_event
);
1528 void lbs_notify_command_response(struct lbs_private
*priv
, u8 resp_idx
)
1530 lbs_deb_enter(LBS_DEB_THREAD
);
1532 if (priv
->psstate
== PS_STATE_SLEEP
)
1533 priv
->psstate
= PS_STATE_AWAKE
;
1535 /* Swap buffers by flipping the response index */
1536 BUG_ON(resp_idx
> 1);
1537 priv
->resp_idx
= resp_idx
;
1539 wake_up_interruptible(&priv
->waitq
);
1541 lbs_deb_leave(LBS_DEB_THREAD
);
1543 EXPORT_SYMBOL_GPL(lbs_notify_command_response
);
1545 static int __init
lbs_init_module(void)
1547 lbs_deb_enter(LBS_DEB_MAIN
);
1548 memset(&confirm_sleep
, 0, sizeof(confirm_sleep
));
1549 confirm_sleep
.hdr
.command
= cpu_to_le16(CMD_802_11_PS_MODE
);
1550 confirm_sleep
.hdr
.size
= cpu_to_le16(sizeof(confirm_sleep
));
1551 confirm_sleep
.action
= cpu_to_le16(CMD_SUBCMD_SLEEP_CONFIRMED
);
1553 lbs_deb_leave(LBS_DEB_MAIN
);
1557 static void __exit
lbs_exit_module(void)
1559 lbs_deb_enter(LBS_DEB_MAIN
);
1560 lbs_debugfs_remove();
1561 lbs_deb_leave(LBS_DEB_MAIN
);
1565 * rtap interface support fuctions
1568 static int lbs_rtap_open(struct net_device
*dev
)
1570 /* Yes, _stop_ the queue. Because we don't support injection */
1571 lbs_deb_enter(LBS_DEB_MAIN
);
1572 netif_carrier_off(dev
);
1573 netif_stop_queue(dev
);
1574 lbs_deb_leave(LBS_DEB_LEAVE
);
1578 static int lbs_rtap_stop(struct net_device
*dev
)
1580 lbs_deb_enter(LBS_DEB_MAIN
);
1581 lbs_deb_leave(LBS_DEB_MAIN
);
1585 static int lbs_rtap_hard_start_xmit(struct sk_buff
*skb
, struct net_device
*dev
)
1587 netif_stop_queue(dev
);
1588 return NETDEV_TX_BUSY
;
1591 static struct net_device_stats
*lbs_rtap_get_stats(struct net_device
*dev
)
1593 struct lbs_private
*priv
= dev
->priv
;
1594 lbs_deb_enter(LBS_DEB_NET
);
1595 return &priv
->stats
;
1599 static void lbs_remove_rtap(struct lbs_private
*priv
)
1601 lbs_deb_enter(LBS_DEB_MAIN
);
1602 if (priv
->rtap_net_dev
== NULL
)
1604 unregister_netdev(priv
->rtap_net_dev
);
1605 free_netdev(priv
->rtap_net_dev
);
1606 priv
->rtap_net_dev
= NULL
;
1608 lbs_deb_leave(LBS_DEB_MAIN
);
1611 static int lbs_add_rtap(struct lbs_private
*priv
)
1614 struct net_device
*rtap_dev
;
1616 lbs_deb_enter(LBS_DEB_MAIN
);
1617 if (priv
->rtap_net_dev
) {
1622 rtap_dev
= alloc_netdev(0, "rtap%d", ether_setup
);
1623 if (rtap_dev
== NULL
) {
1628 memcpy(rtap_dev
->dev_addr
, priv
->current_addr
, ETH_ALEN
);
1629 rtap_dev
->type
= ARPHRD_IEEE80211_RADIOTAP
;
1630 rtap_dev
->open
= lbs_rtap_open
;
1631 rtap_dev
->stop
= lbs_rtap_stop
;
1632 rtap_dev
->get_stats
= lbs_rtap_get_stats
;
1633 rtap_dev
->hard_start_xmit
= lbs_rtap_hard_start_xmit
;
1634 rtap_dev
->priv
= priv
;
1635 SET_NETDEV_DEV(rtap_dev
, priv
->dev
->dev
.parent
);
1637 ret
= register_netdev(rtap_dev
);
1639 free_netdev(rtap_dev
);
1642 priv
->rtap_net_dev
= rtap_dev
;
1645 lbs_deb_leave_args(LBS_DEB_MAIN
, "ret %d", ret
);
1649 #ifndef CONFIG_IEEE80211
1650 const char *escape_essid(const char *essid
, u8 essid_len
)
1652 static char escaped
[IW_ESSID_MAX_SIZE
* 2 + 1];
1653 const char *s
= essid
;
1656 if (ieee80211_is_empty_essid(essid
, essid_len
)) {
1657 memcpy(escaped
, "<hidden>", sizeof("<hidden>"));
1661 essid_len
= min(essid_len
, (u8
) IW_ESSID_MAX_SIZE
);
1662 while (essid_len
--) {
1676 module_init(lbs_init_module
);
1677 module_exit(lbs_exit_module
);
1679 MODULE_DESCRIPTION("Libertas WLAN Driver Library");
1680 MODULE_AUTHOR("Marvell International Ltd.");
1681 MODULE_LICENSE("GPL");