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>
15 #include <linux/ieee80211.h>
16 #include <net/iw_handler.h>
27 #define DRIVER_RELEASE_VERSION "323.p0"
28 const char lbs_driver_version
[] = "COMM-USB8388-" DRIVER_RELEASE_VERSION
35 /* Module parameters */
36 unsigned int lbs_debug
;
37 EXPORT_SYMBOL_GPL(lbs_debug
);
38 module_param_named(libertas_debug
, lbs_debug
, int, 0644);
41 /* This global structure is used to send the confirm_sleep command as
42 * fast as possible down to the firmware. */
43 struct cmd_confirm_sleep confirm_sleep
;
46 #define LBS_TX_PWR_DEFAULT 20 /*100mW */
47 #define LBS_TX_PWR_US_DEFAULT 20 /*100mW */
48 #define LBS_TX_PWR_JP_DEFAULT 16 /*50mW */
49 #define LBS_TX_PWR_FR_DEFAULT 20 /*100mW */
50 #define LBS_TX_PWR_EMEA_DEFAULT 20 /*100mW */
52 /* Format { channel, frequency (MHz), maxtxpower } */
53 /* band: 'B/G', region: USA FCC/Canada IC */
54 static struct chan_freq_power channel_freq_power_US_BG
[] = {
55 {1, 2412, LBS_TX_PWR_US_DEFAULT
},
56 {2, 2417, LBS_TX_PWR_US_DEFAULT
},
57 {3, 2422, LBS_TX_PWR_US_DEFAULT
},
58 {4, 2427, LBS_TX_PWR_US_DEFAULT
},
59 {5, 2432, LBS_TX_PWR_US_DEFAULT
},
60 {6, 2437, LBS_TX_PWR_US_DEFAULT
},
61 {7, 2442, LBS_TX_PWR_US_DEFAULT
},
62 {8, 2447, LBS_TX_PWR_US_DEFAULT
},
63 {9, 2452, LBS_TX_PWR_US_DEFAULT
},
64 {10, 2457, LBS_TX_PWR_US_DEFAULT
},
65 {11, 2462, LBS_TX_PWR_US_DEFAULT
}
68 /* band: 'B/G', region: Europe ETSI */
69 static struct chan_freq_power channel_freq_power_EU_BG
[] = {
70 {1, 2412, LBS_TX_PWR_EMEA_DEFAULT
},
71 {2, 2417, LBS_TX_PWR_EMEA_DEFAULT
},
72 {3, 2422, LBS_TX_PWR_EMEA_DEFAULT
},
73 {4, 2427, LBS_TX_PWR_EMEA_DEFAULT
},
74 {5, 2432, LBS_TX_PWR_EMEA_DEFAULT
},
75 {6, 2437, LBS_TX_PWR_EMEA_DEFAULT
},
76 {7, 2442, LBS_TX_PWR_EMEA_DEFAULT
},
77 {8, 2447, LBS_TX_PWR_EMEA_DEFAULT
},
78 {9, 2452, LBS_TX_PWR_EMEA_DEFAULT
},
79 {10, 2457, LBS_TX_PWR_EMEA_DEFAULT
},
80 {11, 2462, LBS_TX_PWR_EMEA_DEFAULT
},
81 {12, 2467, LBS_TX_PWR_EMEA_DEFAULT
},
82 {13, 2472, LBS_TX_PWR_EMEA_DEFAULT
}
85 /* band: 'B/G', region: Spain */
86 static struct chan_freq_power channel_freq_power_SPN_BG
[] = {
87 {10, 2457, LBS_TX_PWR_DEFAULT
},
88 {11, 2462, LBS_TX_PWR_DEFAULT
}
91 /* band: 'B/G', region: France */
92 static struct chan_freq_power channel_freq_power_FR_BG
[] = {
93 {10, 2457, LBS_TX_PWR_FR_DEFAULT
},
94 {11, 2462, LBS_TX_PWR_FR_DEFAULT
},
95 {12, 2467, LBS_TX_PWR_FR_DEFAULT
},
96 {13, 2472, LBS_TX_PWR_FR_DEFAULT
}
99 /* band: 'B/G', region: Japan */
100 static struct chan_freq_power channel_freq_power_JPN_BG
[] = {
101 {1, 2412, LBS_TX_PWR_JP_DEFAULT
},
102 {2, 2417, LBS_TX_PWR_JP_DEFAULT
},
103 {3, 2422, LBS_TX_PWR_JP_DEFAULT
},
104 {4, 2427, LBS_TX_PWR_JP_DEFAULT
},
105 {5, 2432, LBS_TX_PWR_JP_DEFAULT
},
106 {6, 2437, LBS_TX_PWR_JP_DEFAULT
},
107 {7, 2442, LBS_TX_PWR_JP_DEFAULT
},
108 {8, 2447, LBS_TX_PWR_JP_DEFAULT
},
109 {9, 2452, LBS_TX_PWR_JP_DEFAULT
},
110 {10, 2457, LBS_TX_PWR_JP_DEFAULT
},
111 {11, 2462, LBS_TX_PWR_JP_DEFAULT
},
112 {12, 2467, LBS_TX_PWR_JP_DEFAULT
},
113 {13, 2472, LBS_TX_PWR_JP_DEFAULT
},
114 {14, 2484, LBS_TX_PWR_JP_DEFAULT
}
118 * the structure for channel, frequency and power
120 struct region_cfp_table
{
122 struct chan_freq_power
*cfp_BG
;
127 * the structure for the mapping between region and CFP
129 static struct region_cfp_table region_cfp_table
[] = {
131 channel_freq_power_US_BG
,
132 ARRAY_SIZE(channel_freq_power_US_BG
),
135 {0x20, /*CANADA IC */
136 channel_freq_power_US_BG
,
137 ARRAY_SIZE(channel_freq_power_US_BG
),
140 {0x30, /*EU*/ channel_freq_power_EU_BG
,
141 ARRAY_SIZE(channel_freq_power_EU_BG
),
144 {0x31, /*SPAIN*/ channel_freq_power_SPN_BG
,
145 ARRAY_SIZE(channel_freq_power_SPN_BG
),
148 {0x32, /*FRANCE*/ channel_freq_power_FR_BG
,
149 ARRAY_SIZE(channel_freq_power_FR_BG
),
152 {0x40, /*JAPAN*/ channel_freq_power_JPN_BG
,
153 ARRAY_SIZE(channel_freq_power_JPN_BG
),
156 /*Add new region here */
160 * the table to keep region code
162 u16 lbs_region_code_to_index
[MRVDRV_MAX_REGION_CODE
] =
163 { 0x10, 0x20, 0x30, 0x31, 0x32, 0x40 };
166 * 802.11b/g supported bitrates (in 500Kb/s units)
168 u8 lbs_bg_rates
[MAX_RATES
] =
169 { 0x02, 0x04, 0x0b, 0x16, 0x0c, 0x12, 0x18, 0x24, 0x30, 0x48, 0x60, 0x6c,
173 * FW rate table. FW refers to rates by their index in this table, not by the
174 * rate value itself. Values of 0x00 are
175 * reserved positions.
177 static u8 fw_data_rates
[MAX_RATES
] =
178 { 0x02, 0x04, 0x0B, 0x16, 0x00, 0x0C, 0x12,
179 0x18, 0x24, 0x30, 0x48, 0x60, 0x6C, 0x00
183 * @brief use index to get the data rate
185 * @param idx The index of data rate
186 * @return data rate or 0
188 u32
lbs_fw_index_to_data_rate(u8 idx
)
190 if (idx
>= sizeof(fw_data_rates
))
192 return fw_data_rates
[idx
];
196 * @brief use rate to get the index
198 * @param rate data rate
201 u8
lbs_data_rate_to_fw_index(u32 rate
)
208 for (i
= 0; i
< sizeof(fw_data_rates
); i
++) {
209 if (rate
== fw_data_rates
[i
])
216 * Attributes exported through sysfs
220 * @brief Get function for sysfs attribute anycast_mask
222 static ssize_t
lbs_anycast_get(struct device
*dev
,
223 struct device_attribute
*attr
, char * buf
)
225 struct lbs_private
*priv
= to_net_dev(dev
)->ml_priv
;
226 struct cmd_ds_mesh_access mesh_access
;
229 memset(&mesh_access
, 0, sizeof(mesh_access
));
231 ret
= lbs_mesh_access(priv
, CMD_ACT_MESH_GET_ANYCAST
, &mesh_access
);
235 return snprintf(buf
, 12, "0x%X\n", le32_to_cpu(mesh_access
.data
[0]));
239 * @brief Set function for sysfs attribute anycast_mask
241 static ssize_t
lbs_anycast_set(struct device
*dev
,
242 struct device_attribute
*attr
, const char * buf
, size_t count
)
244 struct lbs_private
*priv
= to_net_dev(dev
)->ml_priv
;
245 struct cmd_ds_mesh_access mesh_access
;
249 memset(&mesh_access
, 0, sizeof(mesh_access
));
250 sscanf(buf
, "%x", &datum
);
251 mesh_access
.data
[0] = cpu_to_le32(datum
);
253 ret
= lbs_mesh_access(priv
, CMD_ACT_MESH_SET_ANYCAST
, &mesh_access
);
261 * @brief Get function for sysfs attribute prb_rsp_limit
263 static ssize_t
lbs_prb_rsp_limit_get(struct device
*dev
,
264 struct device_attribute
*attr
, char *buf
)
266 struct lbs_private
*priv
= to_net_dev(dev
)->ml_priv
;
267 struct cmd_ds_mesh_access mesh_access
;
271 memset(&mesh_access
, 0, sizeof(mesh_access
));
272 mesh_access
.data
[0] = cpu_to_le32(CMD_ACT_GET
);
274 ret
= lbs_mesh_access(priv
, CMD_ACT_MESH_SET_GET_PRB_RSP_LIMIT
,
279 retry_limit
= le32_to_cpu(mesh_access
.data
[1]);
280 return snprintf(buf
, 10, "%d\n", retry_limit
);
284 * @brief Set function for sysfs attribute prb_rsp_limit
286 static ssize_t
lbs_prb_rsp_limit_set(struct device
*dev
,
287 struct device_attribute
*attr
, const char *buf
, size_t count
)
289 struct lbs_private
*priv
= to_net_dev(dev
)->ml_priv
;
290 struct cmd_ds_mesh_access mesh_access
;
292 unsigned long retry_limit
;
294 memset(&mesh_access
, 0, sizeof(mesh_access
));
295 mesh_access
.data
[0] = cpu_to_le32(CMD_ACT_SET
);
297 if (!strict_strtoul(buf
, 10, &retry_limit
))
299 if (retry_limit
> 15)
302 mesh_access
.data
[1] = cpu_to_le32(retry_limit
);
304 ret
= lbs_mesh_access(priv
, CMD_ACT_MESH_SET_GET_PRB_RSP_LIMIT
,
312 static int lbs_add_rtap(struct lbs_private
*priv
);
313 static void lbs_remove_rtap(struct lbs_private
*priv
);
314 static int lbs_add_mesh(struct lbs_private
*priv
);
315 static void lbs_remove_mesh(struct lbs_private
*priv
);
319 * Get function for sysfs attribute rtap
321 static ssize_t
lbs_rtap_get(struct device
*dev
,
322 struct device_attribute
*attr
, char * buf
)
324 struct lbs_private
*priv
= to_net_dev(dev
)->ml_priv
;
325 return snprintf(buf
, 5, "0x%X\n", priv
->monitormode
);
329 * Set function for sysfs attribute rtap
331 static ssize_t
lbs_rtap_set(struct device
*dev
,
332 struct device_attribute
*attr
, const char * buf
, size_t count
)
335 struct lbs_private
*priv
= to_net_dev(dev
)->ml_priv
;
337 sscanf(buf
, "%x", &monitor_mode
);
339 if (priv
->monitormode
== monitor_mode
)
341 if (!priv
->monitormode
) {
342 if (priv
->infra_open
|| priv
->mesh_open
)
344 if (priv
->mode
== IW_MODE_INFRA
)
345 lbs_cmd_80211_deauthenticate(priv
,
346 priv
->curbssparams
.bssid
,
347 WLAN_REASON_DEAUTH_LEAVING
);
348 else if (priv
->mode
== IW_MODE_ADHOC
)
349 lbs_adhoc_stop(priv
);
352 priv
->monitormode
= monitor_mode
;
354 if (!priv
->monitormode
)
356 priv
->monitormode
= 0;
357 lbs_remove_rtap(priv
);
359 if (priv
->currenttxskb
) {
360 dev_kfree_skb_any(priv
->currenttxskb
);
361 priv
->currenttxskb
= NULL
;
364 /* Wake queues, command thread, etc. */
365 lbs_host_to_card_done(priv
);
368 lbs_prepare_and_send_command(priv
,
369 CMD_802_11_MONITOR_MODE
, CMD_ACT_SET
,
370 CMD_OPTION_WAITFORRSP
, 0, &priv
->monitormode
);
375 * lbs_rtap attribute to be exported per ethX interface
376 * through sysfs (/sys/class/net/ethX/lbs_rtap)
378 static DEVICE_ATTR(lbs_rtap
, 0644, lbs_rtap_get
, lbs_rtap_set
);
381 * Get function for sysfs attribute mesh
383 static ssize_t
lbs_mesh_get(struct device
*dev
,
384 struct device_attribute
*attr
, char * buf
)
386 struct lbs_private
*priv
= to_net_dev(dev
)->ml_priv
;
387 return snprintf(buf
, 5, "0x%X\n", !!priv
->mesh_dev
);
391 * Set function for sysfs attribute mesh
393 static ssize_t
lbs_mesh_set(struct device
*dev
,
394 struct device_attribute
*attr
, const char * buf
, size_t count
)
396 struct lbs_private
*priv
= to_net_dev(dev
)->ml_priv
;
398 int ret
, action
= CMD_ACT_MESH_CONFIG_STOP
;
400 sscanf(buf
, "%x", &enable
);
402 if (enable
== !!priv
->mesh_dev
)
405 action
= CMD_ACT_MESH_CONFIG_START
;
406 ret
= lbs_mesh_config(priv
, action
, priv
->curbssparams
.channel
);
413 lbs_remove_mesh(priv
);
419 * lbs_mesh attribute to be exported per ethX interface
420 * through sysfs (/sys/class/net/ethX/lbs_mesh)
422 static DEVICE_ATTR(lbs_mesh
, 0644, lbs_mesh_get
, lbs_mesh_set
);
425 * anycast_mask attribute to be exported per mshX interface
426 * through sysfs (/sys/class/net/mshX/anycast_mask)
428 static DEVICE_ATTR(anycast_mask
, 0644, lbs_anycast_get
, lbs_anycast_set
);
431 * prb_rsp_limit attribute to be exported per mshX interface
432 * through sysfs (/sys/class/net/mshX/prb_rsp_limit)
434 static DEVICE_ATTR(prb_rsp_limit
, 0644, lbs_prb_rsp_limit_get
,
435 lbs_prb_rsp_limit_set
);
437 static struct attribute
*lbs_mesh_sysfs_entries
[] = {
438 &dev_attr_anycast_mask
.attr
,
439 &dev_attr_prb_rsp_limit
.attr
,
443 static struct attribute_group lbs_mesh_attr_group
= {
444 .attrs
= lbs_mesh_sysfs_entries
,
448 * @brief This function opens the ethX or mshX interface
450 * @param dev A pointer to net_device structure
451 * @return 0 or -EBUSY if monitor mode active
453 static int lbs_dev_open(struct net_device
*dev
)
455 struct lbs_private
*priv
= dev
->ml_priv
;
458 lbs_deb_enter(LBS_DEB_NET
);
460 spin_lock_irq(&priv
->driver_lock
);
462 if (priv
->monitormode
) {
467 if (dev
== priv
->mesh_dev
) {
469 priv
->mesh_connect_status
= LBS_CONNECTED
;
470 netif_carrier_on(dev
);
472 priv
->infra_open
= 1;
474 if (priv
->connect_status
== LBS_CONNECTED
)
475 netif_carrier_on(dev
);
477 netif_carrier_off(dev
);
480 if (!priv
->tx_pending_len
)
481 netif_wake_queue(dev
);
484 spin_unlock_irq(&priv
->driver_lock
);
485 lbs_deb_leave_args(LBS_DEB_NET
, "ret %d", ret
);
490 * @brief This function closes the mshX interface
492 * @param dev A pointer to net_device structure
495 static int lbs_mesh_stop(struct net_device
*dev
)
497 struct lbs_private
*priv
= dev
->ml_priv
;
499 lbs_deb_enter(LBS_DEB_MESH
);
500 spin_lock_irq(&priv
->driver_lock
);
503 priv
->mesh_connect_status
= LBS_DISCONNECTED
;
505 netif_stop_queue(dev
);
506 netif_carrier_off(dev
);
508 spin_unlock_irq(&priv
->driver_lock
);
510 schedule_work(&priv
->mcast_work
);
512 lbs_deb_leave(LBS_DEB_MESH
);
517 * @brief This function closes the ethX interface
519 * @param dev A pointer to net_device structure
522 static int lbs_eth_stop(struct net_device
*dev
)
524 struct lbs_private
*priv
= dev
->ml_priv
;
526 lbs_deb_enter(LBS_DEB_NET
);
528 spin_lock_irq(&priv
->driver_lock
);
529 priv
->infra_open
= 0;
530 netif_stop_queue(dev
);
531 spin_unlock_irq(&priv
->driver_lock
);
533 schedule_work(&priv
->mcast_work
);
535 lbs_deb_leave(LBS_DEB_NET
);
539 static void lbs_tx_timeout(struct net_device
*dev
)
541 struct lbs_private
*priv
= dev
->ml_priv
;
543 lbs_deb_enter(LBS_DEB_TX
);
545 lbs_pr_err("tx watch dog timeout\n");
547 dev
->trans_start
= jiffies
;
549 if (priv
->currenttxskb
)
550 lbs_send_tx_feedback(priv
, 0);
552 /* XX: Shouldn't we also call into the hw-specific driver
553 to kick it somehow? */
554 lbs_host_to_card_done(priv
);
556 /* More often than not, this actually happens because the
557 firmware has crapped itself -- rather than just a very
558 busy medium. So send a harmless command, and if/when
559 _that_ times out, we'll kick it in the head. */
560 lbs_prepare_and_send_command(priv
, CMD_802_11_RSSI
, 0,
563 lbs_deb_leave(LBS_DEB_TX
);
566 void lbs_host_to_card_done(struct lbs_private
*priv
)
570 lbs_deb_enter(LBS_DEB_THREAD
);
572 spin_lock_irqsave(&priv
->driver_lock
, flags
);
574 priv
->dnld_sent
= DNLD_RES_RECEIVED
;
576 /* Wake main thread if commands are pending */
577 if (!priv
->cur_cmd
|| priv
->tx_pending_len
> 0)
578 wake_up_interruptible(&priv
->waitq
);
580 spin_unlock_irqrestore(&priv
->driver_lock
, flags
);
581 lbs_deb_leave(LBS_DEB_THREAD
);
583 EXPORT_SYMBOL_GPL(lbs_host_to_card_done
);
585 static int lbs_set_mac_address(struct net_device
*dev
, void *addr
)
588 struct lbs_private
*priv
= dev
->ml_priv
;
589 struct sockaddr
*phwaddr
= addr
;
590 struct cmd_ds_802_11_mac_address cmd
;
592 lbs_deb_enter(LBS_DEB_NET
);
594 /* In case it was called from the mesh device */
597 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
));
598 cmd
.action
= cpu_to_le16(CMD_ACT_SET
);
599 memcpy(cmd
.macadd
, phwaddr
->sa_data
, ETH_ALEN
);
601 ret
= lbs_cmd_with_response(priv
, CMD_802_11_MAC_ADDRESS
, &cmd
);
603 lbs_deb_net("set MAC address failed\n");
607 memcpy(priv
->current_addr
, phwaddr
->sa_data
, ETH_ALEN
);
608 memcpy(dev
->dev_addr
, phwaddr
->sa_data
, ETH_ALEN
);
610 memcpy(priv
->mesh_dev
->dev_addr
, phwaddr
->sa_data
, ETH_ALEN
);
613 lbs_deb_leave_args(LBS_DEB_NET
, "ret %d", ret
);
618 static inline int mac_in_list(unsigned char *list
, int list_len
,
622 if (!memcmp(list
, mac
, ETH_ALEN
))
631 static int lbs_add_mcast_addrs(struct cmd_ds_mac_multicast_adr
*cmd
,
632 struct net_device
*dev
, int nr_addrs
)
635 struct dev_mc_list
*mc_list
;
637 if ((dev
->flags
& (IFF_UP
|IFF_MULTICAST
)) != (IFF_UP
|IFF_MULTICAST
))
640 netif_addr_lock_bh(dev
);
641 for (mc_list
= dev
->mc_list
; mc_list
; mc_list
= mc_list
->next
) {
642 if (mac_in_list(cmd
->maclist
, nr_addrs
, mc_list
->dmi_addr
)) {
643 lbs_deb_net("mcast address %s:%pM skipped\n", dev
->name
,
648 if (i
== MRVDRV_MAX_MULTICAST_LIST_SIZE
)
650 memcpy(&cmd
->maclist
[6*i
], mc_list
->dmi_addr
, ETH_ALEN
);
651 lbs_deb_net("mcast address %s:%pM added to filter\n", dev
->name
,
655 netif_addr_unlock_bh(dev
);
662 static void lbs_set_mcast_worker(struct work_struct
*work
)
664 struct lbs_private
*priv
= container_of(work
, struct lbs_private
, mcast_work
);
665 struct cmd_ds_mac_multicast_adr mcast_cmd
;
668 int old_mac_control
= priv
->mac_control
;
670 lbs_deb_enter(LBS_DEB_NET
);
672 dev_flags
= priv
->dev
->flags
;
674 dev_flags
|= priv
->mesh_dev
->flags
;
676 if (dev_flags
& IFF_PROMISC
) {
677 priv
->mac_control
|= CMD_ACT_MAC_PROMISCUOUS_ENABLE
;
678 priv
->mac_control
&= ~(CMD_ACT_MAC_ALL_MULTICAST_ENABLE
|
679 CMD_ACT_MAC_MULTICAST_ENABLE
);
680 goto out_set_mac_control
;
681 } else if (dev_flags
& IFF_ALLMULTI
) {
683 priv
->mac_control
|= CMD_ACT_MAC_ALL_MULTICAST_ENABLE
;
684 priv
->mac_control
&= ~(CMD_ACT_MAC_PROMISCUOUS_ENABLE
|
685 CMD_ACT_MAC_MULTICAST_ENABLE
);
686 goto out_set_mac_control
;
689 /* Once for priv->dev, again for priv->mesh_dev if it exists */
690 nr_addrs
= lbs_add_mcast_addrs(&mcast_cmd
, priv
->dev
, 0);
691 if (nr_addrs
>= 0 && priv
->mesh_dev
)
692 nr_addrs
= lbs_add_mcast_addrs(&mcast_cmd
, priv
->mesh_dev
, nr_addrs
);
697 int size
= offsetof(struct cmd_ds_mac_multicast_adr
,
698 maclist
[6*nr_addrs
]);
700 mcast_cmd
.action
= cpu_to_le16(CMD_ACT_SET
);
701 mcast_cmd
.hdr
.size
= cpu_to_le16(size
);
702 mcast_cmd
.nr_of_adrs
= cpu_to_le16(nr_addrs
);
704 lbs_cmd_async(priv
, CMD_MAC_MULTICAST_ADR
, &mcast_cmd
.hdr
, size
);
706 priv
->mac_control
|= CMD_ACT_MAC_MULTICAST_ENABLE
;
708 priv
->mac_control
&= ~CMD_ACT_MAC_MULTICAST_ENABLE
;
710 priv
->mac_control
&= ~(CMD_ACT_MAC_PROMISCUOUS_ENABLE
|
711 CMD_ACT_MAC_ALL_MULTICAST_ENABLE
);
713 if (priv
->mac_control
!= old_mac_control
)
714 lbs_set_mac_control(priv
);
716 lbs_deb_leave(LBS_DEB_NET
);
719 static void lbs_set_multicast_list(struct net_device
*dev
)
721 struct lbs_private
*priv
= dev
->ml_priv
;
723 schedule_work(&priv
->mcast_work
);
727 * @brief This function handles the major jobs in the LBS driver.
728 * It handles all events generated by firmware, RX data received
729 * from firmware and TX data sent from kernel.
731 * @param data A pointer to lbs_thread structure
734 static int lbs_thread(void *data
)
736 struct net_device
*dev
= data
;
737 struct lbs_private
*priv
= dev
->ml_priv
;
740 lbs_deb_enter(LBS_DEB_THREAD
);
742 init_waitqueue_entry(&wait
, current
);
748 lbs_deb_thread("1: currenttxskb %p, dnld_sent %d\n",
749 priv
->currenttxskb
, priv
->dnld_sent
);
751 add_wait_queue(&priv
->waitq
, &wait
);
752 set_current_state(TASK_INTERRUPTIBLE
);
753 spin_lock_irq(&priv
->driver_lock
);
755 if (kthread_should_stop())
756 shouldsleep
= 0; /* Bye */
757 else if (priv
->surpriseremoved
)
758 shouldsleep
= 1; /* We need to wait until we're _told_ to die */
759 else if (priv
->psstate
== PS_STATE_SLEEP
)
760 shouldsleep
= 1; /* Sleep mode. Nothing we can do till it wakes */
761 else if (priv
->cmd_timed_out
)
762 shouldsleep
= 0; /* Command timed out. Recover */
763 else if (!priv
->fw_ready
)
764 shouldsleep
= 1; /* Firmware not ready. We're waiting for it */
765 else if (priv
->dnld_sent
)
766 shouldsleep
= 1; /* Something is en route to the device already */
767 else if (priv
->tx_pending_len
> 0)
768 shouldsleep
= 0; /* We've a packet to send */
769 else if (priv
->resp_len
[priv
->resp_idx
])
770 shouldsleep
= 0; /* We have a command response */
771 else if (priv
->cur_cmd
)
772 shouldsleep
= 1; /* Can't send a command; one already running */
773 else if (!list_empty(&priv
->cmdpendingq
))
774 shouldsleep
= 0; /* We have a command to send */
775 else if (__kfifo_len(priv
->event_fifo
))
776 shouldsleep
= 0; /* We have an event to process */
778 shouldsleep
= 1; /* No command */
781 lbs_deb_thread("sleeping, connect_status %d, "
782 "psmode %d, psstate %d\n",
783 priv
->connect_status
,
784 priv
->psmode
, priv
->psstate
);
785 spin_unlock_irq(&priv
->driver_lock
);
788 spin_unlock_irq(&priv
->driver_lock
);
790 lbs_deb_thread("2: currenttxskb %p, dnld_send %d\n",
791 priv
->currenttxskb
, priv
->dnld_sent
);
793 set_current_state(TASK_RUNNING
);
794 remove_wait_queue(&priv
->waitq
, &wait
);
796 lbs_deb_thread("3: currenttxskb %p, dnld_sent %d\n",
797 priv
->currenttxskb
, priv
->dnld_sent
);
799 if (kthread_should_stop()) {
800 lbs_deb_thread("break from main thread\n");
804 if (priv
->surpriseremoved
) {
805 lbs_deb_thread("adapter removed; waiting to die...\n");
809 lbs_deb_thread("4: currenttxskb %p, dnld_sent %d\n",
810 priv
->currenttxskb
, priv
->dnld_sent
);
812 /* Process any pending command response */
813 spin_lock_irq(&priv
->driver_lock
);
814 resp_idx
= priv
->resp_idx
;
815 if (priv
->resp_len
[resp_idx
]) {
816 spin_unlock_irq(&priv
->driver_lock
);
817 lbs_process_command_response(priv
,
818 priv
->resp_buf
[resp_idx
],
819 priv
->resp_len
[resp_idx
]);
820 spin_lock_irq(&priv
->driver_lock
);
821 priv
->resp_len
[resp_idx
] = 0;
823 spin_unlock_irq(&priv
->driver_lock
);
825 /* command timeout stuff */
826 if (priv
->cmd_timed_out
&& priv
->cur_cmd
) {
827 struct cmd_ctrl_node
*cmdnode
= priv
->cur_cmd
;
829 if (++priv
->nr_retries
> 3) {
830 lbs_pr_info("Excessive timeouts submitting "
832 le16_to_cpu(cmdnode
->cmdbuf
->command
));
833 lbs_complete_command(priv
, cmdnode
, -ETIMEDOUT
);
834 priv
->nr_retries
= 0;
835 if (priv
->reset_card
)
836 priv
->reset_card(priv
);
838 priv
->cur_cmd
= NULL
;
839 priv
->dnld_sent
= DNLD_RES_RECEIVED
;
840 lbs_pr_info("requeueing command 0x%04x due "
841 "to timeout (#%d)\n",
842 le16_to_cpu(cmdnode
->cmdbuf
->command
),
845 /* Stick it back at the _top_ of the pending queue
846 for immediate resubmission */
847 list_add(&cmdnode
->list
, &priv
->cmdpendingq
);
850 priv
->cmd_timed_out
= 0;
852 /* Process hardware events, e.g. card removed, link lost */
853 spin_lock_irq(&priv
->driver_lock
);
854 while (__kfifo_len(priv
->event_fifo
)) {
857 __kfifo_get(priv
->event_fifo
, (unsigned char *) &event
,
859 spin_unlock_irq(&priv
->driver_lock
);
860 lbs_process_event(priv
, event
);
861 spin_lock_irq(&priv
->driver_lock
);
863 spin_unlock_irq(&priv
->driver_lock
);
868 /* Check if we need to confirm Sleep Request received previously */
869 if (priv
->psstate
== PS_STATE_PRE_SLEEP
&&
870 !priv
->dnld_sent
&& !priv
->cur_cmd
) {
871 if (priv
->connect_status
== LBS_CONNECTED
) {
872 lbs_deb_thread("pre-sleep, currenttxskb %p, "
873 "dnld_sent %d, cur_cmd %p\n",
874 priv
->currenttxskb
, priv
->dnld_sent
,
877 lbs_ps_confirm_sleep(priv
);
879 /* workaround for firmware sending
880 * deauth/linkloss event immediately
881 * after sleep request; remove this
882 * after firmware fixes it
884 priv
->psstate
= PS_STATE_AWAKE
;
885 lbs_pr_alert("ignore PS_SleepConfirm in "
886 "non-connected state\n");
890 /* The PS state is changed during processing of Sleep Request
893 if ((priv
->psstate
== PS_STATE_SLEEP
) ||
894 (priv
->psstate
== PS_STATE_PRE_SLEEP
))
897 /* Execute the next command */
898 if (!priv
->dnld_sent
&& !priv
->cur_cmd
)
899 lbs_execute_next_command(priv
);
901 /* Wake-up command waiters which can't sleep in
902 * lbs_prepare_and_send_command
904 if (!list_empty(&priv
->cmdpendingq
))
905 wake_up_all(&priv
->cmd_pending
);
907 spin_lock_irq(&priv
->driver_lock
);
908 if (!priv
->dnld_sent
&& priv
->tx_pending_len
> 0) {
909 int ret
= priv
->hw_host_to_card(priv
, MVMS_DAT
,
910 priv
->tx_pending_buf
,
911 priv
->tx_pending_len
);
913 lbs_deb_tx("host_to_card failed %d\n", ret
);
914 priv
->dnld_sent
= DNLD_RES_RECEIVED
;
916 priv
->tx_pending_len
= 0;
917 if (!priv
->currenttxskb
) {
918 /* We can wake the queues immediately if we aren't
919 waiting for TX feedback */
920 if (priv
->connect_status
== LBS_CONNECTED
)
921 netif_wake_queue(priv
->dev
);
922 if (priv
->mesh_dev
&&
923 priv
->mesh_connect_status
== LBS_CONNECTED
)
924 netif_wake_queue(priv
->mesh_dev
);
927 spin_unlock_irq(&priv
->driver_lock
);
930 del_timer(&priv
->command_timer
);
931 wake_up_all(&priv
->cmd_pending
);
933 lbs_deb_leave(LBS_DEB_THREAD
);
937 static int lbs_suspend_callback(struct lbs_private
*priv
, unsigned long dummy
,
938 struct cmd_header
*cmd
)
940 lbs_deb_enter(LBS_DEB_FW
);
942 netif_device_detach(priv
->dev
);
944 netif_device_detach(priv
->mesh_dev
);
947 lbs_deb_leave(LBS_DEB_FW
);
951 int lbs_suspend(struct lbs_private
*priv
)
953 struct cmd_header cmd
;
956 lbs_deb_enter(LBS_DEB_FW
);
958 if (priv
->wol_criteria
== 0xffffffff) {
959 lbs_pr_info("Suspend attempt without configuring wake params!\n");
963 memset(&cmd
, 0, sizeof(cmd
));
965 ret
= __lbs_cmd(priv
, CMD_802_11_HOST_SLEEP_ACTIVATE
, &cmd
,
966 sizeof(cmd
), lbs_suspend_callback
, 0);
968 lbs_pr_info("HOST_SLEEP_ACTIVATE failed: %d\n", ret
);
970 lbs_deb_leave_args(LBS_DEB_FW
, "ret %d", ret
);
973 EXPORT_SYMBOL_GPL(lbs_suspend
);
975 void lbs_resume(struct lbs_private
*priv
)
977 lbs_deb_enter(LBS_DEB_FW
);
981 /* Firmware doesn't seem to give us RX packets any more
982 until we send it some command. Might as well update */
983 lbs_prepare_and_send_command(priv
, CMD_802_11_RSSI
, 0,
986 netif_device_attach(priv
->dev
);
988 netif_device_attach(priv
->mesh_dev
);
990 lbs_deb_leave(LBS_DEB_FW
);
992 EXPORT_SYMBOL_GPL(lbs_resume
);
995 * @brief This function gets the HW spec from the firmware and sets
996 * some basic parameters.
998 * @param priv A pointer to struct lbs_private structure
1001 static int lbs_setup_firmware(struct lbs_private
*priv
)
1004 s16 curlevel
= 0, minlevel
= 0, maxlevel
= 0;
1006 lbs_deb_enter(LBS_DEB_FW
);
1008 /* Read MAC address from firmware */
1009 memset(priv
->current_addr
, 0xff, ETH_ALEN
);
1010 ret
= lbs_update_hw_spec(priv
);
1014 /* Read power levels if available */
1015 ret
= lbs_get_tx_power(priv
, &curlevel
, &minlevel
, &maxlevel
);
1017 priv
->txpower_cur
= curlevel
;
1018 priv
->txpower_min
= minlevel
;
1019 priv
->txpower_max
= maxlevel
;
1022 lbs_set_mac_control(priv
);
1024 lbs_deb_leave_args(LBS_DEB_FW
, "ret %d", ret
);
1029 * This function handles the timeout of command sending.
1030 * It will re-send the same command again.
1032 static void command_timer_fn(unsigned long data
)
1034 struct lbs_private
*priv
= (struct lbs_private
*)data
;
1035 unsigned long flags
;
1037 lbs_deb_enter(LBS_DEB_CMD
);
1038 spin_lock_irqsave(&priv
->driver_lock
, flags
);
1043 lbs_pr_info("command 0x%04x timed out\n",
1044 le16_to_cpu(priv
->cur_cmd
->cmdbuf
->command
));
1046 priv
->cmd_timed_out
= 1;
1047 wake_up_interruptible(&priv
->waitq
);
1049 spin_unlock_irqrestore(&priv
->driver_lock
, flags
);
1050 lbs_deb_leave(LBS_DEB_CMD
);
1053 static void lbs_sync_channel_worker(struct work_struct
*work
)
1055 struct lbs_private
*priv
= container_of(work
, struct lbs_private
,
1058 lbs_deb_enter(LBS_DEB_MAIN
);
1059 if (lbs_update_channel(priv
))
1060 lbs_pr_info("Channel synchronization failed.");
1061 lbs_deb_leave(LBS_DEB_MAIN
);
1065 static int lbs_init_adapter(struct lbs_private
*priv
)
1070 lbs_deb_enter(LBS_DEB_MAIN
);
1072 /* Allocate buffer to store the BSSID list */
1073 bufsize
= MAX_NETWORK_COUNT
* sizeof(struct bss_descriptor
);
1074 priv
->networks
= kzalloc(bufsize
, GFP_KERNEL
);
1075 if (!priv
->networks
) {
1076 lbs_pr_err("Out of memory allocating beacons\n");
1081 /* Initialize scan result lists */
1082 INIT_LIST_HEAD(&priv
->network_free_list
);
1083 INIT_LIST_HEAD(&priv
->network_list
);
1084 for (i
= 0; i
< MAX_NETWORK_COUNT
; i
++) {
1085 list_add_tail(&priv
->networks
[i
].list
,
1086 &priv
->network_free_list
);
1089 memset(priv
->current_addr
, 0xff, ETH_ALEN
);
1091 priv
->connect_status
= LBS_DISCONNECTED
;
1092 priv
->mesh_connect_status
= LBS_DISCONNECTED
;
1093 priv
->secinfo
.auth_mode
= IW_AUTH_ALG_OPEN_SYSTEM
;
1094 priv
->mode
= IW_MODE_INFRA
;
1095 priv
->curbssparams
.channel
= DEFAULT_AD_HOC_CHANNEL
;
1096 priv
->mac_control
= CMD_ACT_MAC_RX_ON
| CMD_ACT_MAC_TX_ON
;
1098 priv
->enablehwauto
= 1;
1099 priv
->capability
= WLAN_CAPABILITY_SHORT_PREAMBLE
;
1100 priv
->psmode
= LBS802_11POWERMODECAM
;
1101 priv
->psstate
= PS_STATE_FULL_POWER
;
1103 mutex_init(&priv
->lock
);
1105 setup_timer(&priv
->command_timer
, command_timer_fn
,
1106 (unsigned long)priv
);
1108 INIT_LIST_HEAD(&priv
->cmdfreeq
);
1109 INIT_LIST_HEAD(&priv
->cmdpendingq
);
1111 spin_lock_init(&priv
->driver_lock
);
1112 init_waitqueue_head(&priv
->cmd_pending
);
1114 /* Allocate the command buffers */
1115 if (lbs_allocate_cmd_buffer(priv
)) {
1116 lbs_pr_err("Out of memory allocating command buffers\n");
1121 priv
->resp_len
[0] = priv
->resp_len
[1] = 0;
1123 /* Create the event FIFO */
1124 priv
->event_fifo
= kfifo_alloc(sizeof(u32
) * 16, GFP_KERNEL
, NULL
);
1125 if (IS_ERR(priv
->event_fifo
)) {
1126 lbs_pr_err("Out of memory allocating event FIFO buffer\n");
1132 lbs_deb_leave_args(LBS_DEB_MAIN
, "ret %d", ret
);
1137 static void lbs_free_adapter(struct lbs_private
*priv
)
1139 lbs_deb_enter(LBS_DEB_MAIN
);
1141 lbs_free_cmd_buffer(priv
);
1142 if (priv
->event_fifo
)
1143 kfifo_free(priv
->event_fifo
);
1144 del_timer(&priv
->command_timer
);
1145 kfree(priv
->networks
);
1146 priv
->networks
= NULL
;
1148 lbs_deb_leave(LBS_DEB_MAIN
);
1151 static const struct net_device_ops lbs_netdev_ops
= {
1152 .ndo_open
= lbs_dev_open
,
1153 .ndo_stop
= lbs_eth_stop
,
1154 .ndo_start_xmit
= lbs_hard_start_xmit
,
1155 .ndo_set_mac_address
= lbs_set_mac_address
,
1156 .ndo_tx_timeout
= lbs_tx_timeout
,
1157 .ndo_set_multicast_list
= lbs_set_multicast_list
,
1158 .ndo_change_mtu
= eth_change_mtu
,
1159 .ndo_validate_addr
= eth_validate_addr
,
1163 * @brief This function adds the card. it will probe the
1164 * card, allocate the lbs_priv and initialize the device.
1166 * @param card A pointer to card
1167 * @return A pointer to struct lbs_private structure
1169 struct lbs_private
*lbs_add_card(void *card
, struct device
*dmdev
)
1171 struct net_device
*dev
= NULL
;
1172 struct lbs_private
*priv
= NULL
;
1174 lbs_deb_enter(LBS_DEB_MAIN
);
1176 /* Allocate an Ethernet device and register it */
1177 dev
= alloc_etherdev(sizeof(struct lbs_private
));
1179 lbs_pr_err("init wlanX device failed\n");
1182 priv
= netdev_priv(dev
);
1183 dev
->ml_priv
= priv
;
1185 if (lbs_init_adapter(priv
)) {
1186 lbs_pr_err("failed to initialize adapter structure.\n");
1187 goto err_init_adapter
;
1192 priv
->mesh_open
= 0;
1193 priv
->infra_open
= 0;
1195 /* Setup the OS Interface to our functions */
1196 dev
->netdev_ops
= &lbs_netdev_ops
;
1197 dev
->watchdog_timeo
= 5 * HZ
;
1198 dev
->ethtool_ops
= &lbs_ethtool_ops
;
1200 dev
->wireless_handlers
= &lbs_handler_def
;
1202 dev
->flags
|= IFF_BROADCAST
| IFF_MULTICAST
;
1204 SET_NETDEV_DEV(dev
, dmdev
);
1206 priv
->rtap_net_dev
= NULL
;
1207 strcpy(dev
->name
, "wlan%d");
1209 lbs_deb_thread("Starting main thread...\n");
1210 init_waitqueue_head(&priv
->waitq
);
1211 priv
->main_thread
= kthread_run(lbs_thread
, dev
, "lbs_main");
1212 if (IS_ERR(priv
->main_thread
)) {
1213 lbs_deb_thread("Error creating main thread.\n");
1214 goto err_init_adapter
;
1217 priv
->work_thread
= create_singlethread_workqueue("lbs_worker");
1218 INIT_DELAYED_WORK(&priv
->assoc_work
, lbs_association_worker
);
1219 INIT_DELAYED_WORK(&priv
->scan_work
, lbs_scan_worker
);
1220 INIT_WORK(&priv
->mcast_work
, lbs_set_mcast_worker
);
1221 INIT_WORK(&priv
->sync_channel
, lbs_sync_channel_worker
);
1223 sprintf(priv
->mesh_ssid
, "mesh");
1224 priv
->mesh_ssid_len
= 4;
1226 priv
->wol_criteria
= 0xffffffff;
1227 priv
->wol_gpio
= 0xff;
1232 lbs_free_adapter(priv
);
1237 lbs_deb_leave_args(LBS_DEB_MAIN
, "priv %p", priv
);
1240 EXPORT_SYMBOL_GPL(lbs_add_card
);
1243 void lbs_remove_card(struct lbs_private
*priv
)
1245 struct net_device
*dev
= priv
->dev
;
1246 union iwreq_data wrqu
;
1248 lbs_deb_enter(LBS_DEB_MAIN
);
1250 lbs_remove_mesh(priv
);
1251 lbs_remove_rtap(priv
);
1255 cancel_delayed_work_sync(&priv
->scan_work
);
1256 cancel_delayed_work_sync(&priv
->assoc_work
);
1257 cancel_work_sync(&priv
->mcast_work
);
1259 /* worker thread destruction blocks on the in-flight command which
1260 * should have been cleared already in lbs_stop_card().
1262 lbs_deb_main("destroying worker thread\n");
1263 destroy_workqueue(priv
->work_thread
);
1264 lbs_deb_main("done destroying worker thread\n");
1266 if (priv
->psmode
== LBS802_11POWERMODEMAX_PSP
) {
1267 priv
->psmode
= LBS802_11POWERMODECAM
;
1268 lbs_ps_wakeup(priv
, CMD_OPTION_WAITFORRSP
);
1271 memset(wrqu
.ap_addr
.sa_data
, 0xaa, ETH_ALEN
);
1272 wrqu
.ap_addr
.sa_family
= ARPHRD_ETHER
;
1273 wireless_send_event(priv
->dev
, SIOCGIWAP
, &wrqu
, NULL
);
1275 /* Stop the thread servicing the interrupts */
1276 priv
->surpriseremoved
= 1;
1277 kthread_stop(priv
->main_thread
);
1279 lbs_free_adapter(priv
);
1284 lbs_deb_leave(LBS_DEB_MAIN
);
1286 EXPORT_SYMBOL_GPL(lbs_remove_card
);
1289 int lbs_start_card(struct lbs_private
*priv
)
1291 struct net_device
*dev
= priv
->dev
;
1294 lbs_deb_enter(LBS_DEB_MAIN
);
1296 /* poke the firmware */
1297 ret
= lbs_setup_firmware(priv
);
1304 if (register_netdev(dev
)) {
1305 lbs_pr_err("cannot register ethX device\n");
1309 lbs_update_channel(priv
);
1311 /* Check mesh FW version and appropriately send the mesh start
1314 if (priv
->mesh_fw_ver
== MESH_FW_OLD
) {
1315 /* Enable mesh, if supported, and work out which TLV it uses.
1316 0x100 + 291 is an unofficial value used in 5.110.20.pXX
1317 0x100 + 37 is the official value used in 5.110.21.pXX
1318 but we check them in that order because 20.pXX doesn't
1319 give an error -- it just silently fails. */
1321 /* 5.110.20.pXX firmware will fail the command if the channel
1322 doesn't match the existing channel. But only if the TLV
1323 is correct. If the channel is wrong, _BOTH_ versions will
1324 give an error to 0x100+291, and allow 0x100+37 to succeed.
1325 It's just that 5.110.20.pXX will not have done anything
1328 priv
->mesh_tlv
= TLV_TYPE_OLD_MESH_ID
;
1329 if (lbs_mesh_config(priv
, CMD_ACT_MESH_CONFIG_START
,
1330 priv
->curbssparams
.channel
)) {
1331 priv
->mesh_tlv
= TLV_TYPE_MESH_ID
;
1332 if (lbs_mesh_config(priv
, CMD_ACT_MESH_CONFIG_START
,
1333 priv
->curbssparams
.channel
))
1336 } else if (priv
->mesh_fw_ver
== MESH_FW_NEW
) {
1337 /* 10.0.0.pXX new firmwares should succeed with TLV
1338 * 0x100+37; Do not invoke command with old TLV.
1340 priv
->mesh_tlv
= TLV_TYPE_MESH_ID
;
1341 if (lbs_mesh_config(priv
, CMD_ACT_MESH_CONFIG_START
,
1342 priv
->curbssparams
.channel
))
1345 if (priv
->mesh_tlv
) {
1348 if (device_create_file(&dev
->dev
, &dev_attr_lbs_mesh
))
1349 lbs_pr_err("cannot register lbs_mesh attribute\n");
1351 /* While rtap isn't related to mesh, only mesh-enabled
1352 * firmware implements the rtap functionality via
1353 * CMD_802_11_MONITOR_MODE.
1355 if (device_create_file(&dev
->dev
, &dev_attr_lbs_rtap
))
1356 lbs_pr_err("cannot register lbs_rtap attribute\n");
1359 lbs_debugfs_init_one(priv
, dev
);
1361 lbs_pr_info("%s: Marvell WLAN 802.11 adapter\n", dev
->name
);
1366 lbs_deb_leave_args(LBS_DEB_MAIN
, "ret %d", ret
);
1369 EXPORT_SYMBOL_GPL(lbs_start_card
);
1372 void lbs_stop_card(struct lbs_private
*priv
)
1374 struct net_device
*dev
;
1375 struct cmd_ctrl_node
*cmdnode
;
1376 unsigned long flags
;
1378 lbs_deb_enter(LBS_DEB_MAIN
);
1384 netif_stop_queue(dev
);
1385 netif_carrier_off(dev
);
1387 lbs_debugfs_remove_one(priv
);
1388 if (priv
->mesh_tlv
) {
1389 device_remove_file(&dev
->dev
, &dev_attr_lbs_mesh
);
1390 device_remove_file(&dev
->dev
, &dev_attr_lbs_rtap
);
1393 /* Delete the timeout of the currently processing command */
1394 del_timer_sync(&priv
->command_timer
);
1396 /* Flush pending command nodes */
1397 spin_lock_irqsave(&priv
->driver_lock
, flags
);
1398 lbs_deb_main("clearing pending commands\n");
1399 list_for_each_entry(cmdnode
, &priv
->cmdpendingq
, list
) {
1400 cmdnode
->result
= -ENOENT
;
1401 cmdnode
->cmdwaitqwoken
= 1;
1402 wake_up_interruptible(&cmdnode
->cmdwait_q
);
1405 /* Flush the command the card is currently processing */
1406 if (priv
->cur_cmd
) {
1407 lbs_deb_main("clearing current command\n");
1408 priv
->cur_cmd
->result
= -ENOENT
;
1409 priv
->cur_cmd
->cmdwaitqwoken
= 1;
1410 wake_up_interruptible(&priv
->cur_cmd
->cmdwait_q
);
1412 lbs_deb_main("done clearing commands\n");
1413 spin_unlock_irqrestore(&priv
->driver_lock
, flags
);
1415 unregister_netdev(dev
);
1418 lbs_deb_leave(LBS_DEB_MAIN
);
1420 EXPORT_SYMBOL_GPL(lbs_stop_card
);
1423 static const struct net_device_ops mesh_netdev_ops
= {
1424 .ndo_open
= lbs_dev_open
,
1425 .ndo_stop
= lbs_mesh_stop
,
1426 .ndo_start_xmit
= lbs_hard_start_xmit
,
1427 .ndo_set_mac_address
= lbs_set_mac_address
,
1428 .ndo_set_multicast_list
= lbs_set_multicast_list
,
1432 * @brief This function adds mshX interface
1434 * @param priv A pointer to the struct lbs_private structure
1435 * @return 0 if successful, -X otherwise
1437 static int lbs_add_mesh(struct lbs_private
*priv
)
1439 struct net_device
*mesh_dev
= NULL
;
1442 lbs_deb_enter(LBS_DEB_MESH
);
1444 /* Allocate a virtual mesh device */
1445 if (!(mesh_dev
= alloc_netdev(0, "msh%d", ether_setup
))) {
1446 lbs_deb_mesh("init mshX device failed\n");
1450 mesh_dev
->ml_priv
= priv
;
1451 priv
->mesh_dev
= mesh_dev
;
1453 mesh_dev
->netdev_ops
= &mesh_netdev_ops
;
1454 mesh_dev
->ethtool_ops
= &lbs_ethtool_ops
;
1455 memcpy(mesh_dev
->dev_addr
, priv
->dev
->dev_addr
,
1456 sizeof(priv
->dev
->dev_addr
));
1458 SET_NETDEV_DEV(priv
->mesh_dev
, priv
->dev
->dev
.parent
);
1461 mesh_dev
->wireless_handlers
= (struct iw_handler_def
*)&mesh_handler_def
;
1463 mesh_dev
->flags
|= IFF_BROADCAST
| IFF_MULTICAST
;
1464 /* Register virtual mesh interface */
1465 ret
= register_netdev(mesh_dev
);
1467 lbs_pr_err("cannot register mshX virtual interface\n");
1471 ret
= sysfs_create_group(&(mesh_dev
->dev
.kobj
), &lbs_mesh_attr_group
);
1473 goto err_unregister
;
1475 lbs_persist_config_init(mesh_dev
);
1477 /* Everything successful */
1482 unregister_netdev(mesh_dev
);
1485 free_netdev(mesh_dev
);
1488 lbs_deb_leave_args(LBS_DEB_MESH
, "ret %d", ret
);
1492 static void lbs_remove_mesh(struct lbs_private
*priv
)
1494 struct net_device
*mesh_dev
;
1497 mesh_dev
= priv
->mesh_dev
;
1501 lbs_deb_enter(LBS_DEB_MESH
);
1502 netif_stop_queue(mesh_dev
);
1503 netif_carrier_off(mesh_dev
);
1504 sysfs_remove_group(&(mesh_dev
->dev
.kobj
), &lbs_mesh_attr_group
);
1505 lbs_persist_config_remove(mesh_dev
);
1506 unregister_netdev(mesh_dev
);
1507 priv
->mesh_dev
= NULL
;
1508 free_netdev(mesh_dev
);
1509 lbs_deb_leave(LBS_DEB_MESH
);
1513 * @brief This function finds the CFP in
1514 * region_cfp_table based on region and band parameter.
1516 * @param region The region code
1517 * @param band The band
1518 * @param cfp_no A pointer to CFP number
1519 * @return A pointer to CFP
1521 struct chan_freq_power
*lbs_get_region_cfp_table(u8 region
, int *cfp_no
)
1525 lbs_deb_enter(LBS_DEB_MAIN
);
1527 end
= ARRAY_SIZE(region_cfp_table
);
1529 for (i
= 0; i
< end
; i
++) {
1530 lbs_deb_main("region_cfp_table[i].region=%d\n",
1531 region_cfp_table
[i
].region
);
1532 if (region_cfp_table
[i
].region
== region
) {
1533 *cfp_no
= region_cfp_table
[i
].cfp_no_BG
;
1534 lbs_deb_leave(LBS_DEB_MAIN
);
1535 return region_cfp_table
[i
].cfp_BG
;
1539 lbs_deb_leave_args(LBS_DEB_MAIN
, "ret NULL");
1543 int lbs_set_regiontable(struct lbs_private
*priv
, u8 region
, u8 band
)
1548 struct chan_freq_power
*cfp
;
1551 lbs_deb_enter(LBS_DEB_MAIN
);
1553 memset(priv
->region_channel
, 0, sizeof(priv
->region_channel
));
1555 cfp
= lbs_get_region_cfp_table(region
, &cfp_no
);
1557 priv
->region_channel
[i
].nrcfp
= cfp_no
;
1558 priv
->region_channel
[i
].CFP
= cfp
;
1560 lbs_deb_main("wrong region code %#x in band B/G\n",
1565 priv
->region_channel
[i
].valid
= 1;
1566 priv
->region_channel
[i
].region
= region
;
1567 priv
->region_channel
[i
].band
= band
;
1570 lbs_deb_leave_args(LBS_DEB_MAIN
, "ret %d", ret
);
1574 void lbs_queue_event(struct lbs_private
*priv
, u32 event
)
1576 unsigned long flags
;
1578 lbs_deb_enter(LBS_DEB_THREAD
);
1579 spin_lock_irqsave(&priv
->driver_lock
, flags
);
1581 if (priv
->psstate
== PS_STATE_SLEEP
)
1582 priv
->psstate
= PS_STATE_AWAKE
;
1584 __kfifo_put(priv
->event_fifo
, (unsigned char *) &event
, sizeof(u32
));
1586 wake_up_interruptible(&priv
->waitq
);
1588 spin_unlock_irqrestore(&priv
->driver_lock
, flags
);
1589 lbs_deb_leave(LBS_DEB_THREAD
);
1591 EXPORT_SYMBOL_GPL(lbs_queue_event
);
1593 void lbs_notify_command_response(struct lbs_private
*priv
, u8 resp_idx
)
1595 lbs_deb_enter(LBS_DEB_THREAD
);
1597 if (priv
->psstate
== PS_STATE_SLEEP
)
1598 priv
->psstate
= PS_STATE_AWAKE
;
1600 /* Swap buffers by flipping the response index */
1601 BUG_ON(resp_idx
> 1);
1602 priv
->resp_idx
= resp_idx
;
1604 wake_up_interruptible(&priv
->waitq
);
1606 lbs_deb_leave(LBS_DEB_THREAD
);
1608 EXPORT_SYMBOL_GPL(lbs_notify_command_response
);
1610 static int __init
lbs_init_module(void)
1612 lbs_deb_enter(LBS_DEB_MAIN
);
1613 memset(&confirm_sleep
, 0, sizeof(confirm_sleep
));
1614 confirm_sleep
.hdr
.command
= cpu_to_le16(CMD_802_11_PS_MODE
);
1615 confirm_sleep
.hdr
.size
= cpu_to_le16(sizeof(confirm_sleep
));
1616 confirm_sleep
.action
= cpu_to_le16(CMD_SUBCMD_SLEEP_CONFIRMED
);
1618 lbs_deb_leave(LBS_DEB_MAIN
);
1622 static void __exit
lbs_exit_module(void)
1624 lbs_deb_enter(LBS_DEB_MAIN
);
1625 lbs_debugfs_remove();
1626 lbs_deb_leave(LBS_DEB_MAIN
);
1630 * rtap interface support fuctions
1633 static int lbs_rtap_open(struct net_device
*dev
)
1635 /* Yes, _stop_ the queue. Because we don't support injection */
1636 lbs_deb_enter(LBS_DEB_MAIN
);
1637 netif_carrier_off(dev
);
1638 netif_stop_queue(dev
);
1639 lbs_deb_leave(LBS_DEB_LEAVE
);
1643 static int lbs_rtap_stop(struct net_device
*dev
)
1645 lbs_deb_enter(LBS_DEB_MAIN
);
1646 lbs_deb_leave(LBS_DEB_MAIN
);
1650 static netdev_tx_t
lbs_rtap_hard_start_xmit(struct sk_buff
*skb
,
1651 struct net_device
*dev
)
1653 netif_stop_queue(dev
);
1654 return NETDEV_TX_BUSY
;
1657 static void lbs_remove_rtap(struct lbs_private
*priv
)
1659 lbs_deb_enter(LBS_DEB_MAIN
);
1660 if (priv
->rtap_net_dev
== NULL
)
1662 unregister_netdev(priv
->rtap_net_dev
);
1663 free_netdev(priv
->rtap_net_dev
);
1664 priv
->rtap_net_dev
= NULL
;
1666 lbs_deb_leave(LBS_DEB_MAIN
);
1669 static const struct net_device_ops rtap_netdev_ops
= {
1670 .ndo_open
= lbs_rtap_open
,
1671 .ndo_stop
= lbs_rtap_stop
,
1672 .ndo_start_xmit
= lbs_rtap_hard_start_xmit
,
1675 static int lbs_add_rtap(struct lbs_private
*priv
)
1678 struct net_device
*rtap_dev
;
1680 lbs_deb_enter(LBS_DEB_MAIN
);
1681 if (priv
->rtap_net_dev
) {
1686 rtap_dev
= alloc_netdev(0, "rtap%d", ether_setup
);
1687 if (rtap_dev
== NULL
) {
1692 memcpy(rtap_dev
->dev_addr
, priv
->current_addr
, ETH_ALEN
);
1693 rtap_dev
->type
= ARPHRD_IEEE80211_RADIOTAP
;
1694 rtap_dev
->netdev_ops
= &rtap_netdev_ops
;
1695 rtap_dev
->ml_priv
= priv
;
1696 SET_NETDEV_DEV(rtap_dev
, priv
->dev
->dev
.parent
);
1698 ret
= register_netdev(rtap_dev
);
1700 free_netdev(rtap_dev
);
1703 priv
->rtap_net_dev
= rtap_dev
;
1706 lbs_deb_leave_args(LBS_DEB_MAIN
, "ret %d", ret
);
1710 module_init(lbs_init_module
);
1711 module_exit(lbs_exit_module
);
1713 MODULE_DESCRIPTION("Libertas WLAN Driver Library");
1714 MODULE_AUTHOR("Marvell International Ltd.");
1715 MODULE_LICENSE("GPL");