1 /* main.c - (formerly known as dldwd_cs.c, orinoco_cs.c and orinoco.c)
3 * A driver for Hermes or Prism 2 chipset based PCMCIA wireless
4 * adaptors, with Lucent/Agere, Intersil or Symbol firmware.
6 * Current maintainers (as of 29 September 2003) are:
7 * Pavel Roskin <proski AT gnu.org>
8 * and David Gibson <hermes AT gibson.dropbear.id.au>
10 * (C) Copyright David Gibson, IBM Corporation 2001-2003.
11 * Copyright (C) 2000 David Gibson, Linuxcare Australia.
12 * With some help from :
13 * Copyright (C) 2001 Jean Tourrilhes, HP Labs
14 * Copyright (C) 2001 Benjamin Herrenschmidt
16 * Based on dummy_cs.c 1.27 2000/06/12 21:27:25
18 * Portions based on wvlan_cs.c 1.0.6, Copyright Andreas Neuhaus <andy
19 * AT fasta.fh-dortmund.de>
20 * http://www.stud.fh-dortmund.de/~andy/wvlan/
22 * The contents of this file are subject to the Mozilla Public License
23 * Version 1.1 (the "License"); you may not use this file except in
24 * compliance with the License. You may obtain a copy of the License
25 * at http://www.mozilla.org/MPL/
27 * Software distributed under the License is distributed on an "AS IS"
28 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
29 * the License for the specific language governing rights and
30 * limitations under the License.
32 * The initial developer of the original code is David A. Hinds
33 * <dahinds AT users.sourceforge.net>. Portions created by David
34 * A. Hinds are Copyright (C) 1999 David A. Hinds. All Rights
37 * Alternatively, the contents of this file may be used under the
38 * terms of the GNU General Public License version 2 (the "GPL"), in
39 * which case the provisions of the GPL are applicable instead of the
40 * above. If you wish to allow the use of your version of this file
41 * only under the terms of the GPL and not to allow others to use your
42 * version of this file under the MPL, indicate your decision by
43 * deleting the provisions above and replace them with the notice and
44 * other provisions required by the GPL. If you do not delete the
45 * provisions above, a recipient may use your version of this file
46 * under either the MPL or the GPL. */
50 * o Handle de-encapsulation within network layer, provide 802.11
51 * headers (patch from Thomas 'Dent' Mirlacher)
52 * o Fix possible races in SPY handling.
53 * o Disconnect wireless extensions from fundamental configuration.
54 * o (maybe) Software WEP support (patch from Stano Meduna).
55 * o (maybe) Use multiple Tx buffers - driver handling queue
56 * rather than firmware.
59 /* Locking and synchronization:
61 * The basic principle is that everything is serialized through a
62 * single spinlock, priv->lock. The lock is used in user, bh and irq
63 * context, so when taken outside hardirq context it should always be
64 * taken with interrupts disabled. The lock protects both the
65 * hardware and the struct orinoco_private.
67 * Another flag, priv->hw_unavailable indicates that the hardware is
68 * unavailable for an extended period of time (e.g. suspended, or in
69 * the middle of a hard reset). This flag is protected by the
70 * spinlock. All code which touches the hardware should check the
71 * flag after taking the lock, and if it is set, give up on whatever
72 * they are doing and drop the lock again. The orinoco_lock()
73 * function handles this (it unlocks and returns -EBUSY if
74 * hw_unavailable is non-zero).
77 #define DRIVER_NAME "orinoco"
79 #include <linux/module.h>
80 #include <linux/kernel.h>
81 #include <linux/slab.h>
82 #include <linux/init.h>
83 #include <linux/delay.h>
84 #include <linux/device.h>
85 #include <linux/netdevice.h>
86 #include <linux/etherdevice.h>
87 #include <linux/suspend.h>
88 #include <linux/if_arp.h>
89 #include <linux/wireless.h>
90 #include <linux/ieee80211.h>
91 #include <net/iw_handler.h>
92 #include <net/cfg80211.h>
94 #include "hermes_rid.h"
95 #include "hermes_dld.h"
106 /********************************************************************/
107 /* Module information */
108 /********************************************************************/
110 MODULE_AUTHOR("Pavel Roskin <proski@gnu.org> & "
111 "David Gibson <hermes@gibson.dropbear.id.au>");
112 MODULE_DESCRIPTION("Driver for Lucent Orinoco, Prism II based "
113 "and similar wireless cards");
114 MODULE_LICENSE("Dual MPL/GPL");
116 /* Level of debugging. Used in the macros in orinoco.h */
118 int orinoco_debug
= ORINOCO_DEBUG
;
119 EXPORT_SYMBOL(orinoco_debug
);
120 module_param(orinoco_debug
, int, 0644);
121 MODULE_PARM_DESC(orinoco_debug
, "Debug level");
124 static int suppress_linkstatus
; /* = 0 */
125 module_param(suppress_linkstatus
, bool, 0644);
126 MODULE_PARM_DESC(suppress_linkstatus
, "Don't log link status changes");
128 static int ignore_disconnect
; /* = 0 */
129 module_param(ignore_disconnect
, int, 0644);
130 MODULE_PARM_DESC(ignore_disconnect
,
131 "Don't report lost link to the network layer");
133 int force_monitor
; /* = 0 */
134 module_param(force_monitor
, int, 0644);
135 MODULE_PARM_DESC(force_monitor
, "Allow monitor mode for all firmware versions");
137 /********************************************************************/
138 /* Internal constants */
139 /********************************************************************/
141 /* 802.2 LLC/SNAP header used for Ethernet encapsulation over 802.11 */
142 static const u8 encaps_hdr
[] = {0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00};
143 #define ENCAPS_OVERHEAD (sizeof(encaps_hdr) + 2)
145 #define ORINOCO_MIN_MTU 256
146 #define ORINOCO_MAX_MTU (IEEE80211_MAX_DATA_LEN - ENCAPS_OVERHEAD)
148 #define MAX_IRQLOOPS_PER_IRQ 10
149 #define MAX_IRQLOOPS_PER_JIFFY (20000/HZ) /* Based on a guestimate of
150 * how many events the
152 * legitimately generate */
154 #define DUMMY_FID 0xFFFF
156 /*#define MAX_MULTICAST(priv) (priv->firmware_type == FIRMWARE_TYPE_AGERE ? \
157 HERMES_MAX_MULTICAST : 0)*/
158 #define MAX_MULTICAST(priv) (HERMES_MAX_MULTICAST)
160 #define ORINOCO_INTEN (HERMES_EV_RX | HERMES_EV_ALLOC \
161 | HERMES_EV_TX | HERMES_EV_TXEXC \
162 | HERMES_EV_WTERR | HERMES_EV_INFO \
165 /********************************************************************/
167 /********************************************************************/
169 /* Beginning of the Tx descriptor, used in TxExc handling */
170 struct hermes_txexc_data
{
171 struct hermes_tx_descriptor desc
;
175 } __attribute__ ((packed
));
177 /* Rx frame header except compatibility 802.3 header */
178 struct hermes_rx_descriptor
{
199 } __attribute__ ((packed
));
201 struct orinoco_rx_data
{
202 struct hermes_rx_descriptor
*desc
;
204 struct list_head list
;
207 struct orinoco_scan_data
{
211 struct list_head list
;
214 /********************************************************************/
215 /* Function prototypes */
216 /********************************************************************/
218 static int __orinoco_set_multicast_list(struct net_device
*dev
);
219 static int __orinoco_up(struct orinoco_private
*priv
);
220 static int __orinoco_down(struct orinoco_private
*priv
);
221 static int __orinoco_commit(struct orinoco_private
*priv
);
223 /********************************************************************/
224 /* Internal helper functions */
225 /********************************************************************/
227 void set_port_type(struct orinoco_private
*priv
)
229 switch (priv
->iw_mode
) {
230 case NL80211_IFTYPE_STATION
:
232 priv
->createibss
= 0;
234 case NL80211_IFTYPE_ADHOC
:
235 if (priv
->prefer_port3
) {
237 priv
->createibss
= 0;
239 priv
->port_type
= priv
->ibss_port
;
240 priv
->createibss
= 1;
243 case NL80211_IFTYPE_MONITOR
:
245 priv
->createibss
= 0;
248 printk(KERN_ERR
"%s: Invalid priv->iw_mode in set_port_type()\n",
253 /********************************************************************/
255 /********************************************************************/
257 int orinoco_open(struct net_device
*dev
)
259 struct orinoco_private
*priv
= ndev_priv(dev
);
263 if (orinoco_lock(priv
, &flags
) != 0)
266 err
= __orinoco_up(priv
);
271 orinoco_unlock(priv
, &flags
);
275 EXPORT_SYMBOL(orinoco_open
);
277 int orinoco_stop(struct net_device
*dev
)
279 struct orinoco_private
*priv
= ndev_priv(dev
);
282 /* We mustn't use orinoco_lock() here, because we need to be
283 able to close the interface even if hw_unavailable is set
284 (e.g. as we're released after a PC Card removal) */
285 orinoco_lock_irq(priv
);
289 err
= __orinoco_down(priv
);
291 orinoco_unlock_irq(priv
);
295 EXPORT_SYMBOL(orinoco_stop
);
297 struct net_device_stats
*orinoco_get_stats(struct net_device
*dev
)
299 struct orinoco_private
*priv
= ndev_priv(dev
);
303 EXPORT_SYMBOL(orinoco_get_stats
);
305 void orinoco_set_multicast_list(struct net_device
*dev
)
307 struct orinoco_private
*priv
= ndev_priv(dev
);
310 if (orinoco_lock(priv
, &flags
) != 0) {
311 printk(KERN_DEBUG
"%s: orinoco_set_multicast_list() "
312 "called when hw_unavailable\n", dev
->name
);
316 __orinoco_set_multicast_list(dev
);
317 orinoco_unlock(priv
, &flags
);
319 EXPORT_SYMBOL(orinoco_set_multicast_list
);
321 int orinoco_change_mtu(struct net_device
*dev
, int new_mtu
)
323 struct orinoco_private
*priv
= ndev_priv(dev
);
325 if ((new_mtu
< ORINOCO_MIN_MTU
) || (new_mtu
> ORINOCO_MAX_MTU
))
328 /* MTU + encapsulation + header length */
329 if ((new_mtu
+ ENCAPS_OVERHEAD
+ sizeof(struct ieee80211_hdr
)) >
330 (priv
->nicbuf_size
- ETH_HLEN
))
337 EXPORT_SYMBOL(orinoco_change_mtu
);
339 /********************************************************************/
341 /********************************************************************/
343 static netdev_tx_t
orinoco_xmit(struct sk_buff
*skb
, struct net_device
*dev
)
345 struct orinoco_private
*priv
= ndev_priv(dev
);
346 struct net_device_stats
*stats
= &priv
->stats
;
347 struct orinoco_tkip_key
*key
;
348 hermes_t
*hw
= &priv
->hw
;
350 u16 txfid
= priv
->txfid
;
356 if (!netif_running(dev
)) {
357 printk(KERN_ERR
"%s: Tx on stopped device!\n",
359 return NETDEV_TX_BUSY
;
362 if (netif_queue_stopped(dev
)) {
363 printk(KERN_DEBUG
"%s: Tx while transmitter busy!\n",
365 return NETDEV_TX_BUSY
;
368 if (orinoco_lock(priv
, &flags
) != 0) {
369 printk(KERN_ERR
"%s: orinoco_xmit() called while hw_unavailable\n",
371 return NETDEV_TX_BUSY
;
374 if (!netif_carrier_ok(dev
) ||
375 (priv
->iw_mode
== NL80211_IFTYPE_MONITOR
)) {
376 /* Oops, the firmware hasn't established a connection,
377 silently drop the packet (this seems to be the
382 /* Check packet length */
383 if (skb
->len
< ETH_HLEN
)
386 key
= (struct orinoco_tkip_key
*) priv
->keys
[priv
->tx_key
].key
;
388 do_mic
= ((priv
->encode_alg
== ORINOCO_ALG_TKIP
) &&
391 tx_control
= HERMES_TXCTRL_TX_OK
| HERMES_TXCTRL_TX_EX
;
394 tx_control
|= (priv
->tx_key
<< HERMES_MIC_KEY_ID_SHIFT
) |
397 if (priv
->has_alt_txcntl
) {
398 /* WPA enabled firmwares have tx_cntl at the end of
399 * the 802.11 header. So write zeroed descriptor and
400 * 802.11 header at the same time
402 char desc
[HERMES_802_3_OFFSET
];
403 __le16
*txcntl
= (__le16
*) &desc
[HERMES_TXCNTL2_OFFSET
];
405 memset(&desc
, 0, sizeof(desc
));
407 *txcntl
= cpu_to_le16(tx_control
);
408 err
= hw
->ops
->bap_pwrite(hw
, USER_BAP
, &desc
, sizeof(desc
),
412 printk(KERN_ERR
"%s: Error %d writing Tx "
413 "descriptor to BAP\n", dev
->name
, err
);
417 struct hermes_tx_descriptor desc
;
419 memset(&desc
, 0, sizeof(desc
));
421 desc
.tx_control
= cpu_to_le16(tx_control
);
422 err
= hw
->ops
->bap_pwrite(hw
, USER_BAP
, &desc
, sizeof(desc
),
426 printk(KERN_ERR
"%s: Error %d writing Tx "
427 "descriptor to BAP\n", dev
->name
, err
);
431 /* Clear the 802.11 header and data length fields - some
432 * firmwares (e.g. Lucent/Agere 8.xx) appear to get confused
433 * if this isn't done. */
434 hermes_clear_words(hw
, HERMES_DATA0
,
435 HERMES_802_3_OFFSET
- HERMES_802_11_OFFSET
);
438 eh
= (struct ethhdr
*)skb
->data
;
440 /* Encapsulate Ethernet-II frames */
441 if (ntohs(eh
->h_proto
) > ETH_DATA_LEN
) { /* Ethernet-II frame */
442 struct header_struct
{
443 struct ethhdr eth
; /* 802.3 header */
444 u8 encap
[6]; /* 802.2 header */
445 } __attribute__ ((packed
)) hdr
;
447 /* Strip destination and source from the data */
448 skb_pull(skb
, 2 * ETH_ALEN
);
450 /* And move them to a separate header */
451 memcpy(&hdr
.eth
, eh
, 2 * ETH_ALEN
);
452 hdr
.eth
.h_proto
= htons(sizeof(encaps_hdr
) + skb
->len
);
453 memcpy(hdr
.encap
, encaps_hdr
, sizeof(encaps_hdr
));
455 /* Insert the SNAP header */
456 if (skb_headroom(skb
) < sizeof(hdr
)) {
458 "%s: Not enough headroom for 802.2 headers %d\n",
459 dev
->name
, skb_headroom(skb
));
462 eh
= (struct ethhdr
*) skb_push(skb
, sizeof(hdr
));
463 memcpy(eh
, &hdr
, sizeof(hdr
));
466 err
= hw
->ops
->bap_pwrite(hw
, USER_BAP
, skb
->data
, skb
->len
,
467 txfid
, HERMES_802_3_OFFSET
);
469 printk(KERN_ERR
"%s: Error %d writing packet to BAP\n",
474 /* Calculate Michael MIC */
476 u8 mic_buf
[MICHAEL_MIC_LEN
+ 1];
482 /* MIC start is on an odd boundary */
483 mic_buf
[0] = skb
->data
[skb
->len
- 1];
485 offset
= skb
->len
- 1;
486 len
= MICHAEL_MIC_LEN
+ 1;
490 len
= MICHAEL_MIC_LEN
;
493 orinoco_mic(priv
->tx_tfm_mic
, key
->tx_mic
,
494 eh
->h_dest
, eh
->h_source
, 0 /* priority */,
495 skb
->data
+ ETH_HLEN
, skb
->len
- ETH_HLEN
, mic
);
498 err
= hw
->ops
->bap_pwrite(hw
, USER_BAP
, &mic_buf
[0], len
,
499 txfid
, HERMES_802_3_OFFSET
+ offset
);
501 printk(KERN_ERR
"%s: Error %d writing MIC to BAP\n",
507 /* Finally, we actually initiate the send */
508 netif_stop_queue(dev
);
510 err
= hw
->ops
->cmd_wait(hw
, HERMES_CMD_TX
| HERMES_CMD_RECL
,
513 netif_start_queue(dev
);
515 printk(KERN_ERR
"%s: Error %d transmitting packet\n",
520 stats
->tx_bytes
+= HERMES_802_3_OFFSET
+ skb
->len
;
528 orinoco_unlock(priv
, &flags
);
534 schedule_work(&priv
->reset_work
);
535 orinoco_unlock(priv
, &flags
);
536 return NETDEV_TX_BUSY
;
539 static void __orinoco_ev_alloc(struct net_device
*dev
, hermes_t
*hw
)
541 struct orinoco_private
*priv
= ndev_priv(dev
);
542 u16 fid
= hermes_read_regn(hw
, ALLOCFID
);
544 if (fid
!= priv
->txfid
) {
545 if (fid
!= DUMMY_FID
)
546 printk(KERN_WARNING
"%s: Allocate event on unexpected fid (%04X)\n",
551 hermes_write_regn(hw
, ALLOCFID
, DUMMY_FID
);
554 static void __orinoco_ev_tx(struct net_device
*dev
, hermes_t
*hw
)
556 struct orinoco_private
*priv
= ndev_priv(dev
);
557 struct net_device_stats
*stats
= &priv
->stats
;
561 netif_wake_queue(dev
);
563 hermes_write_regn(hw
, TXCOMPLFID
, DUMMY_FID
);
566 static void __orinoco_ev_txexc(struct net_device
*dev
, hermes_t
*hw
)
568 struct orinoco_private
*priv
= ndev_priv(dev
);
569 struct net_device_stats
*stats
= &priv
->stats
;
570 u16 fid
= hermes_read_regn(hw
, TXCOMPLFID
);
572 struct hermes_txexc_data hdr
;
575 if (fid
== DUMMY_FID
)
576 return; /* Nothing's really happened */
578 /* Read part of the frame header - we need status and addr1 */
579 err
= hw
->ops
->bap_pread(hw
, IRQ_BAP
, &hdr
,
580 sizeof(struct hermes_txexc_data
),
583 hermes_write_regn(hw
, TXCOMPLFID
, DUMMY_FID
);
587 printk(KERN_WARNING
"%s: Unable to read descriptor on Tx error "
588 "(FID=%04X error %d)\n",
589 dev
->name
, fid
, err
);
593 DEBUG(1, "%s: Tx error, err %d (FID=%04X)\n", dev
->name
,
596 /* We produce a TXDROP event only for retry or lifetime
597 * exceeded, because that's the only status that really mean
598 * that this particular node went away.
599 * Other errors means that *we* screwed up. - Jean II */
600 status
= le16_to_cpu(hdr
.desc
.status
);
601 if (status
& (HERMES_TXSTAT_RETRYERR
| HERMES_TXSTAT_AGEDERR
)) {
602 union iwreq_data wrqu
;
604 /* Copy 802.11 dest address.
605 * We use the 802.11 header because the frame may
606 * not be 802.3 or may be mangled...
607 * In Ad-Hoc mode, it will be the node address.
608 * In managed mode, it will be most likely the AP addr
609 * User space will figure out how to convert it to
610 * whatever it needs (IP address or else).
612 memcpy(wrqu
.addr
.sa_data
, hdr
.addr1
, ETH_ALEN
);
613 wrqu
.addr
.sa_family
= ARPHRD_ETHER
;
615 /* Send event to user space */
616 wireless_send_event(dev
, IWEVTXDROP
, &wrqu
, NULL
);
619 netif_wake_queue(dev
);
622 void orinoco_tx_timeout(struct net_device
*dev
)
624 struct orinoco_private
*priv
= ndev_priv(dev
);
625 struct net_device_stats
*stats
= &priv
->stats
;
626 struct hermes
*hw
= &priv
->hw
;
628 printk(KERN_WARNING
"%s: Tx timeout! "
629 "ALLOCFID=%04x, TXCOMPLFID=%04x, EVSTAT=%04x\n",
630 dev
->name
, hermes_read_regn(hw
, ALLOCFID
),
631 hermes_read_regn(hw
, TXCOMPLFID
), hermes_read_regn(hw
, EVSTAT
));
635 schedule_work(&priv
->reset_work
);
637 EXPORT_SYMBOL(orinoco_tx_timeout
);
639 /********************************************************************/
640 /* Rx path (data frames) */
641 /********************************************************************/
643 /* Does the frame have a SNAP header indicating it should be
644 * de-encapsulated to Ethernet-II? */
645 static inline int is_ethersnap(void *_hdr
)
649 /* We de-encapsulate all packets which, a) have SNAP headers
650 * (i.e. SSAP=DSAP=0xaa and CTRL=0x3 in the 802.2 LLC header
651 * and where b) the OUI of the SNAP header is 00:00:00 or
652 * 00:00:f8 - we need both because different APs appear to use
653 * different OUIs for some reason */
654 return (memcmp(hdr
, &encaps_hdr
, 5) == 0)
655 && ((hdr
[5] == 0x00) || (hdr
[5] == 0xf8));
658 static inline void orinoco_spy_gather(struct net_device
*dev
, u_char
*mac
,
659 int level
, int noise
)
661 struct iw_quality wstats
;
662 wstats
.level
= level
- 0x95;
663 wstats
.noise
= noise
- 0x95;
664 wstats
.qual
= (level
> noise
) ? (level
- noise
) : 0;
665 wstats
.updated
= IW_QUAL_ALL_UPDATED
| IW_QUAL_DBM
;
666 /* Update spy records */
667 wireless_spy_update(dev
, mac
, &wstats
);
670 static void orinoco_stat_gather(struct net_device
*dev
,
672 struct hermes_rx_descriptor
*desc
)
674 struct orinoco_private
*priv
= ndev_priv(dev
);
676 /* Using spy support with lots of Rx packets, like in an
677 * infrastructure (AP), will really slow down everything, because
678 * the MAC address must be compared to each entry of the spy list.
679 * If the user really asks for it (set some address in the
680 * spy list), we do it, but he will pay the price.
681 * Note that to get here, you need both WIRELESS_SPY
682 * compiled in AND some addresses in the list !!!
684 /* Note : gcc will optimise the whole section away if
685 * WIRELESS_SPY is not defined... - Jean II */
686 if (SPY_NUMBER(priv
)) {
687 orinoco_spy_gather(dev
, skb_mac_header(skb
) + ETH_ALEN
,
688 desc
->signal
, desc
->silence
);
693 * orinoco_rx_monitor - handle received monitor frames.
698 * desc rx descriptor of the frame
700 * Call context: interrupt
702 static void orinoco_rx_monitor(struct net_device
*dev
, u16 rxfid
,
703 struct hermes_rx_descriptor
*desc
)
705 u32 hdrlen
= 30; /* return full header by default */
711 struct orinoco_private
*priv
= ndev_priv(dev
);
712 struct net_device_stats
*stats
= &priv
->stats
;
713 hermes_t
*hw
= &priv
->hw
;
715 len
= le16_to_cpu(desc
->data_len
);
717 /* Determine the size of the header and the data */
718 fc
= le16_to_cpu(desc
->frame_ctl
);
719 switch (fc
& IEEE80211_FCTL_FTYPE
) {
720 case IEEE80211_FTYPE_DATA
:
721 if ((fc
& IEEE80211_FCTL_TODS
)
722 && (fc
& IEEE80211_FCTL_FROMDS
))
728 case IEEE80211_FTYPE_MGMT
:
732 case IEEE80211_FTYPE_CTL
:
733 switch (fc
& IEEE80211_FCTL_STYPE
) {
734 case IEEE80211_STYPE_PSPOLL
:
735 case IEEE80211_STYPE_RTS
:
736 case IEEE80211_STYPE_CFEND
:
737 case IEEE80211_STYPE_CFENDACK
:
740 case IEEE80211_STYPE_CTS
:
741 case IEEE80211_STYPE_ACK
:
747 /* Unknown frame type */
751 /* sanity check the length */
752 if (datalen
> IEEE80211_MAX_DATA_LEN
+ 12) {
753 printk(KERN_DEBUG
"%s: oversized monitor frame, "
754 "data length = %d\n", dev
->name
, datalen
);
755 stats
->rx_length_errors
++;
759 skb
= dev_alloc_skb(hdrlen
+ datalen
);
761 printk(KERN_WARNING
"%s: Cannot allocate skb for monitor frame\n",
766 /* Copy the 802.11 header to the skb */
767 memcpy(skb_put(skb
, hdrlen
), &(desc
->frame_ctl
), hdrlen
);
768 skb_reset_mac_header(skb
);
770 /* If any, copy the data from the card to the skb */
772 err
= hw
->ops
->bap_pread(hw
, IRQ_BAP
, skb_put(skb
, datalen
),
773 ALIGN(datalen
, 2), rxfid
,
774 HERMES_802_2_OFFSET
);
776 printk(KERN_ERR
"%s: error %d reading monitor frame\n",
783 skb
->ip_summed
= CHECKSUM_NONE
;
784 skb
->pkt_type
= PACKET_OTHERHOST
;
785 skb
->protocol
= cpu_to_be16(ETH_P_802_2
);
788 stats
->rx_bytes
+= skb
->len
;
794 dev_kfree_skb_irq(skb
);
800 void __orinoco_ev_rx(struct net_device
*dev
, hermes_t
*hw
)
802 struct orinoco_private
*priv
= ndev_priv(dev
);
803 struct net_device_stats
*stats
= &priv
->stats
;
804 struct iw_statistics
*wstats
= &priv
->wstats
;
805 struct sk_buff
*skb
= NULL
;
808 struct hermes_rx_descriptor
*desc
;
809 struct orinoco_rx_data
*rx_data
;
812 desc
= kmalloc(sizeof(*desc
), GFP_ATOMIC
);
815 "%s: Can't allocate space for RX descriptor\n",
820 rxfid
= hermes_read_regn(hw
, RXFID
);
822 err
= hw
->ops
->bap_pread(hw
, IRQ_BAP
, desc
, sizeof(*desc
),
825 printk(KERN_ERR
"%s: error %d reading Rx descriptor. "
826 "Frame dropped.\n", dev
->name
, err
);
830 status
= le16_to_cpu(desc
->status
);
832 if (status
& HERMES_RXSTAT_BADCRC
) {
833 DEBUG(1, "%s: Bad CRC on Rx. Frame dropped.\n",
835 stats
->rx_crc_errors
++;
839 /* Handle frames in monitor mode */
840 if (priv
->iw_mode
== NL80211_IFTYPE_MONITOR
) {
841 orinoco_rx_monitor(dev
, rxfid
, desc
);
845 if (status
& HERMES_RXSTAT_UNDECRYPTABLE
) {
846 DEBUG(1, "%s: Undecryptable frame on Rx. Frame dropped.\n",
848 wstats
->discard
.code
++;
852 length
= le16_to_cpu(desc
->data_len
);
855 if (length
< 3) { /* No for even an 802.2 LLC header */
856 /* At least on Symbol firmware with PCF we get quite a
857 lot of these legitimately - Poll frames with no
861 if (length
> IEEE80211_MAX_DATA_LEN
) {
862 printk(KERN_WARNING
"%s: Oversized frame received (%d bytes)\n",
864 stats
->rx_length_errors
++;
868 /* Payload size does not include Michael MIC. Increase payload
869 * size to read it together with the data. */
870 if (status
& HERMES_RXSTAT_MIC
)
871 length
+= MICHAEL_MIC_LEN
;
873 /* We need space for the packet data itself, plus an ethernet
874 header, plus 2 bytes so we can align the IP header on a
875 32bit boundary, plus 1 byte so we can read in odd length
876 packets from the card, which has an IO granularity of 16
878 skb
= dev_alloc_skb(length
+ETH_HLEN
+2+1);
880 printk(KERN_WARNING
"%s: Can't allocate skb for Rx\n",
885 /* We'll prepend the header, so reserve space for it. The worst
886 case is no decapsulation, when 802.3 header is prepended and
887 nothing is removed. 2 is for aligning the IP header. */
888 skb_reserve(skb
, ETH_HLEN
+ 2);
890 err
= hw
->ops
->bap_pread(hw
, IRQ_BAP
, skb_put(skb
, length
),
891 ALIGN(length
, 2), rxfid
,
892 HERMES_802_2_OFFSET
);
894 printk(KERN_ERR
"%s: error %d reading frame. "
895 "Frame dropped.\n", dev
->name
, err
);
899 /* Add desc and skb to rx queue */
900 rx_data
= kzalloc(sizeof(*rx_data
), GFP_ATOMIC
);
902 printk(KERN_WARNING
"%s: Can't allocate RX packet\n",
906 rx_data
->desc
= desc
;
908 list_add_tail(&rx_data
->list
, &priv
->rx_list
);
909 tasklet_schedule(&priv
->rx_tasklet
);
914 dev_kfree_skb_irq(skb
);
921 EXPORT_SYMBOL(__orinoco_ev_rx
);
923 static void orinoco_rx(struct net_device
*dev
,
924 struct hermes_rx_descriptor
*desc
,
927 struct orinoco_private
*priv
= ndev_priv(dev
);
928 struct net_device_stats
*stats
= &priv
->stats
;
933 status
= le16_to_cpu(desc
->status
);
934 length
= le16_to_cpu(desc
->data_len
);
935 fc
= le16_to_cpu(desc
->frame_ctl
);
937 /* Calculate and check MIC */
938 if (status
& HERMES_RXSTAT_MIC
) {
939 struct orinoco_tkip_key
*key
;
940 int key_id
= ((status
& HERMES_RXSTAT_MIC_KEY_ID
) >>
941 HERMES_MIC_KEY_ID_SHIFT
);
942 u8 mic
[MICHAEL_MIC_LEN
];
944 u8
*src
= (fc
& IEEE80211_FCTL_FROMDS
) ?
945 desc
->addr3
: desc
->addr2
;
947 /* Extract Michael MIC from payload */
948 rxmic
= skb
->data
+ skb
->len
- MICHAEL_MIC_LEN
;
950 skb_trim(skb
, skb
->len
- MICHAEL_MIC_LEN
);
951 length
-= MICHAEL_MIC_LEN
;
953 key
= (struct orinoco_tkip_key
*) priv
->keys
[key_id
].key
;
956 printk(KERN_WARNING
"%s: Received encrypted frame from "
957 "%pM using key %i, but key is not installed\n",
958 dev
->name
, src
, key_id
);
962 orinoco_mic(priv
->rx_tfm_mic
, key
->rx_mic
, desc
->addr1
, src
,
963 0, /* priority or QoS? */
964 skb
->data
, skb
->len
, &mic
[0]);
966 if (memcmp(mic
, rxmic
,
968 union iwreq_data wrqu
;
969 struct iw_michaelmicfailure wxmic
;
971 printk(KERN_WARNING
"%s: "
972 "Invalid Michael MIC in data frame from %pM, "
974 dev
->name
, src
, key_id
);
976 /* TODO: update stats */
978 /* Notify userspace */
979 memset(&wxmic
, 0, sizeof(wxmic
));
980 wxmic
.flags
= key_id
& IW_MICFAILURE_KEY_ID
;
981 wxmic
.flags
|= (desc
->addr1
[0] & 1) ?
982 IW_MICFAILURE_GROUP
: IW_MICFAILURE_PAIRWISE
;
983 wxmic
.src_addr
.sa_family
= ARPHRD_ETHER
;
984 memcpy(wxmic
.src_addr
.sa_data
, src
, ETH_ALEN
);
986 (void) orinoco_hw_get_tkip_iv(priv
, key_id
,
989 memset(&wrqu
, 0, sizeof(wrqu
));
990 wrqu
.data
.length
= sizeof(wxmic
);
991 wireless_send_event(dev
, IWEVMICHAELMICFAILURE
, &wrqu
,
998 /* Handle decapsulation
999 * In most cases, the firmware tell us about SNAP frames.
1000 * For some reason, the SNAP frames sent by LinkSys APs
1001 * are not properly recognised by most firmwares.
1002 * So, check ourselves */
1003 if (length
>= ENCAPS_OVERHEAD
&&
1004 (((status
& HERMES_RXSTAT_MSGTYPE
) == HERMES_RXSTAT_1042
) ||
1005 ((status
& HERMES_RXSTAT_MSGTYPE
) == HERMES_RXSTAT_TUNNEL
) ||
1006 is_ethersnap(skb
->data
))) {
1007 /* These indicate a SNAP within 802.2 LLC within
1008 802.11 frame which we'll need to de-encapsulate to
1009 the original EthernetII frame. */
1010 hdr
= (struct ethhdr
*)skb_push(skb
,
1011 ETH_HLEN
- ENCAPS_OVERHEAD
);
1013 /* 802.3 frame - prepend 802.3 header as is */
1014 hdr
= (struct ethhdr
*)skb_push(skb
, ETH_HLEN
);
1015 hdr
->h_proto
= htons(length
);
1017 memcpy(hdr
->h_dest
, desc
->addr1
, ETH_ALEN
);
1018 if (fc
& IEEE80211_FCTL_FROMDS
)
1019 memcpy(hdr
->h_source
, desc
->addr3
, ETH_ALEN
);
1021 memcpy(hdr
->h_source
, desc
->addr2
, ETH_ALEN
);
1023 skb
->protocol
= eth_type_trans(skb
, dev
);
1024 skb
->ip_summed
= CHECKSUM_NONE
;
1025 if (fc
& IEEE80211_FCTL_TODS
)
1026 skb
->pkt_type
= PACKET_OTHERHOST
;
1028 /* Process the wireless stats if needed */
1029 orinoco_stat_gather(dev
, skb
, desc
);
1031 /* Pass the packet to the networking stack */
1033 stats
->rx_packets
++;
1034 stats
->rx_bytes
+= length
;
1041 stats
->rx_dropped
++;
1044 static void orinoco_rx_isr_tasklet(unsigned long data
)
1046 struct orinoco_private
*priv
= (struct orinoco_private
*) data
;
1047 struct net_device
*dev
= priv
->ndev
;
1048 struct orinoco_rx_data
*rx_data
, *temp
;
1049 struct hermes_rx_descriptor
*desc
;
1050 struct sk_buff
*skb
;
1051 unsigned long flags
;
1053 /* orinoco_rx requires the driver lock, and we also need to
1054 * protect priv->rx_list, so just hold the lock over the
1057 * If orinoco_lock fails, we've unplugged the card. In this
1058 * case just abort. */
1059 if (orinoco_lock(priv
, &flags
) != 0)
1062 /* extract desc and skb from queue */
1063 list_for_each_entry_safe(rx_data
, temp
, &priv
->rx_list
, list
) {
1064 desc
= rx_data
->desc
;
1066 list_del(&rx_data
->list
);
1069 orinoco_rx(dev
, desc
, skb
);
1074 orinoco_unlock(priv
, &flags
);
1077 /********************************************************************/
1078 /* Rx path (info frames) */
1079 /********************************************************************/
1081 static void print_linkstatus(struct net_device
*dev
, u16 status
)
1085 if (suppress_linkstatus
)
1089 case HERMES_LINKSTATUS_NOT_CONNECTED
:
1090 s
= "Not Connected";
1092 case HERMES_LINKSTATUS_CONNECTED
:
1095 case HERMES_LINKSTATUS_DISCONNECTED
:
1098 case HERMES_LINKSTATUS_AP_CHANGE
:
1101 case HERMES_LINKSTATUS_AP_OUT_OF_RANGE
:
1102 s
= "AP Out of Range";
1104 case HERMES_LINKSTATUS_AP_IN_RANGE
:
1107 case HERMES_LINKSTATUS_ASSOC_FAILED
:
1108 s
= "Association Failed";
1114 printk(KERN_DEBUG
"%s: New link status: %s (%04x)\n",
1115 dev
->name
, s
, status
);
1118 /* Search scan results for requested BSSID, join it if found */
1119 static void orinoco_join_ap(struct work_struct
*work
)
1121 struct orinoco_private
*priv
=
1122 container_of(work
, struct orinoco_private
, join_work
);
1123 struct net_device
*dev
= priv
->ndev
;
1124 struct hermes
*hw
= &priv
->hw
;
1126 unsigned long flags
;
1130 } __attribute__ ((packed
)) req
;
1131 const int atom_len
= offsetof(struct prism2_scan_apinfo
, atim
);
1132 struct prism2_scan_apinfo
*atom
= NULL
;
1138 /* Allocate buffer for scan results */
1139 buf
= kmalloc(MAX_SCAN_LEN
, GFP_KERNEL
);
1143 if (orinoco_lock(priv
, &flags
) != 0)
1146 /* Sanity checks in case user changed something in the meantime */
1147 if (!priv
->bssid_fixed
)
1150 if (strlen(priv
->desired_essid
) == 0)
1153 /* Read scan results from the firmware */
1154 err
= hw
->ops
->read_ltv(hw
, USER_BAP
,
1155 HERMES_RID_SCANRESULTSTABLE
,
1156 MAX_SCAN_LEN
, &len
, buf
);
1158 printk(KERN_ERR
"%s: Cannot read scan results\n",
1163 len
= HERMES_RECLEN_TO_BYTES(len
);
1165 /* Go through the scan results looking for the channel of the AP
1166 * we were requested to join */
1167 for (; offset
+ atom_len
<= len
; offset
+= atom_len
) {
1168 atom
= (struct prism2_scan_apinfo
*) (buf
+ offset
);
1169 if (memcmp(&atom
->bssid
, priv
->desired_bssid
, ETH_ALEN
) == 0) {
1176 DEBUG(1, "%s: Requested AP not found in scan results\n",
1181 memcpy(req
.bssid
, priv
->desired_bssid
, ETH_ALEN
);
1182 req
.channel
= atom
->channel
; /* both are little-endian */
1183 err
= HERMES_WRITE_RECORD(hw
, USER_BAP
, HERMES_RID_CNFJOINREQUEST
,
1186 printk(KERN_ERR
"%s: Error issuing join request\n", dev
->name
);
1189 orinoco_unlock(priv
, &flags
);
1195 /* Send new BSSID to userspace */
1196 static void orinoco_send_bssid_wevent(struct orinoco_private
*priv
)
1198 struct net_device
*dev
= priv
->ndev
;
1199 struct hermes
*hw
= &priv
->hw
;
1200 union iwreq_data wrqu
;
1203 err
= hw
->ops
->read_ltv(hw
, USER_BAP
, HERMES_RID_CURRENTBSSID
,
1204 ETH_ALEN
, NULL
, wrqu
.ap_addr
.sa_data
);
1208 wrqu
.ap_addr
.sa_family
= ARPHRD_ETHER
;
1210 /* Send event to user space */
1211 wireless_send_event(dev
, SIOCGIWAP
, &wrqu
, NULL
);
1214 static void orinoco_send_assocreqie_wevent(struct orinoco_private
*priv
)
1216 struct net_device
*dev
= priv
->ndev
;
1217 struct hermes
*hw
= &priv
->hw
;
1218 union iwreq_data wrqu
;
1226 err
= hw
->ops
->read_ltv(hw
, USER_BAP
, HERMES_RID_CURRENT_ASSOC_REQ_INFO
,
1227 sizeof(buf
), NULL
, &buf
);
1231 ie
= orinoco_get_wpa_ie(buf
, sizeof(buf
));
1233 int rem
= sizeof(buf
) - (ie
- &buf
[0]);
1234 wrqu
.data
.length
= ie
[1] + 2;
1235 if (wrqu
.data
.length
> rem
)
1236 wrqu
.data
.length
= rem
;
1238 if (wrqu
.data
.length
)
1239 /* Send event to user space */
1240 wireless_send_event(dev
, IWEVASSOCREQIE
, &wrqu
, ie
);
1244 static void orinoco_send_assocrespie_wevent(struct orinoco_private
*priv
)
1246 struct net_device
*dev
= priv
->ndev
;
1247 struct hermes
*hw
= &priv
->hw
;
1248 union iwreq_data wrqu
;
1250 u8 buf
[88]; /* TODO: verify max size or IW_GENERIC_IE_MAX */
1256 err
= hw
->ops
->read_ltv(hw
, USER_BAP
,
1257 HERMES_RID_CURRENT_ASSOC_RESP_INFO
,
1258 sizeof(buf
), NULL
, &buf
);
1262 ie
= orinoco_get_wpa_ie(buf
, sizeof(buf
));
1264 int rem
= sizeof(buf
) - (ie
- &buf
[0]);
1265 wrqu
.data
.length
= ie
[1] + 2;
1266 if (wrqu
.data
.length
> rem
)
1267 wrqu
.data
.length
= rem
;
1269 if (wrqu
.data
.length
)
1270 /* Send event to user space */
1271 wireless_send_event(dev
, IWEVASSOCRESPIE
, &wrqu
, ie
);
1275 static void orinoco_send_wevents(struct work_struct
*work
)
1277 struct orinoco_private
*priv
=
1278 container_of(work
, struct orinoco_private
, wevent_work
);
1279 unsigned long flags
;
1281 if (orinoco_lock(priv
, &flags
) != 0)
1284 orinoco_send_assocreqie_wevent(priv
);
1285 orinoco_send_assocrespie_wevent(priv
);
1286 orinoco_send_bssid_wevent(priv
);
1288 orinoco_unlock(priv
, &flags
);
1291 static void qbuf_scan(struct orinoco_private
*priv
, void *buf
,
1294 struct orinoco_scan_data
*sd
;
1295 unsigned long flags
;
1297 sd
= kmalloc(sizeof(*sd
), GFP_ATOMIC
);
1302 spin_lock_irqsave(&priv
->scan_lock
, flags
);
1303 list_add_tail(&sd
->list
, &priv
->scan_list
);
1304 spin_unlock_irqrestore(&priv
->scan_lock
, flags
);
1306 schedule_work(&priv
->process_scan
);
1309 static void qabort_scan(struct orinoco_private
*priv
)
1311 struct orinoco_scan_data
*sd
;
1312 unsigned long flags
;
1314 sd
= kmalloc(sizeof(*sd
), GFP_ATOMIC
);
1315 sd
->len
= -1; /* Abort */
1317 spin_lock_irqsave(&priv
->scan_lock
, flags
);
1318 list_add_tail(&sd
->list
, &priv
->scan_list
);
1319 spin_unlock_irqrestore(&priv
->scan_lock
, flags
);
1321 schedule_work(&priv
->process_scan
);
1324 static void orinoco_process_scan_results(struct work_struct
*work
)
1326 struct orinoco_private
*priv
=
1327 container_of(work
, struct orinoco_private
, process_scan
);
1328 struct orinoco_scan_data
*sd
, *temp
;
1329 unsigned long flags
;
1334 spin_lock_irqsave(&priv
->scan_lock
, flags
);
1335 list_for_each_entry_safe(sd
, temp
, &priv
->scan_list
, list
) {
1336 spin_unlock_irqrestore(&priv
->scan_lock
, flags
);
1342 list_del(&sd
->list
);
1346 if (type
== HERMES_INQ_CHANNELINFO
)
1347 orinoco_add_extscan_result(priv
, buf
, len
);
1349 orinoco_add_hostscan_results(priv
, buf
, len
);
1352 } else if (priv
->scan_request
) {
1353 /* Either abort or complete the scan */
1354 cfg80211_scan_done(priv
->scan_request
, (len
< 0));
1355 priv
->scan_request
= NULL
;
1358 spin_lock_irqsave(&priv
->scan_lock
, flags
);
1360 spin_unlock_irqrestore(&priv
->scan_lock
, flags
);
1363 void __orinoco_ev_info(struct net_device
*dev
, hermes_t
*hw
)
1365 struct orinoco_private
*priv
= ndev_priv(dev
);
1370 } __attribute__ ((packed
)) info
;
1374 /* This is an answer to an INQUIRE command that we did earlier,
1375 * or an information "event" generated by the card
1376 * The controller return to us a pseudo frame containing
1377 * the information in question - Jean II */
1378 infofid
= hermes_read_regn(hw
, INFOFID
);
1380 /* Read the info frame header - don't try too hard */
1381 err
= hw
->ops
->bap_pread(hw
, IRQ_BAP
, &info
, sizeof(info
),
1384 printk(KERN_ERR
"%s: error %d reading info frame. "
1385 "Frame dropped.\n", dev
->name
, err
);
1389 len
= HERMES_RECLEN_TO_BYTES(le16_to_cpu(info
.len
));
1390 type
= le16_to_cpu(info
.type
);
1393 case HERMES_INQ_TALLIES
: {
1394 struct hermes_tallies_frame tallies
;
1395 struct iw_statistics
*wstats
= &priv
->wstats
;
1397 if (len
> sizeof(tallies
)) {
1398 printk(KERN_WARNING
"%s: Tallies frame too long (%d bytes)\n",
1400 len
= sizeof(tallies
);
1403 err
= hw
->ops
->bap_pread(hw
, IRQ_BAP
, &tallies
, len
,
1404 infofid
, sizeof(info
));
1408 /* Increment our various counters */
1409 /* wstats->discard.nwid - no wrong BSSID stuff */
1410 wstats
->discard
.code
+=
1411 le16_to_cpu(tallies
.RxWEPUndecryptable
);
1412 if (len
== sizeof(tallies
))
1413 wstats
->discard
.code
+=
1414 le16_to_cpu(tallies
.RxDiscards_WEPICVError
) +
1415 le16_to_cpu(tallies
.RxDiscards_WEPExcluded
);
1416 wstats
->discard
.misc
+=
1417 le16_to_cpu(tallies
.TxDiscardsWrongSA
);
1418 wstats
->discard
.fragment
+=
1419 le16_to_cpu(tallies
.RxMsgInBadMsgFragments
);
1420 wstats
->discard
.retries
+=
1421 le16_to_cpu(tallies
.TxRetryLimitExceeded
);
1422 /* wstats->miss.beacon - no match */
1425 case HERMES_INQ_LINKSTATUS
: {
1426 struct hermes_linkstatus linkstatus
;
1430 if (priv
->iw_mode
== NL80211_IFTYPE_MONITOR
)
1433 if (len
!= sizeof(linkstatus
)) {
1434 printk(KERN_WARNING
"%s: Unexpected size for linkstatus frame (%d bytes)\n",
1439 err
= hw
->ops
->bap_pread(hw
, IRQ_BAP
, &linkstatus
, len
,
1440 infofid
, sizeof(info
));
1443 newstatus
= le16_to_cpu(linkstatus
.linkstatus
);
1445 /* Symbol firmware uses "out of range" to signal that
1446 * the hostscan frame can be requested. */
1447 if (newstatus
== HERMES_LINKSTATUS_AP_OUT_OF_RANGE
&&
1448 priv
->firmware_type
== FIRMWARE_TYPE_SYMBOL
&&
1449 priv
->has_hostscan
&& priv
->scan_request
) {
1450 hermes_inquire(hw
, HERMES_INQ_HOSTSCAN_SYMBOL
);
1454 connected
= (newstatus
== HERMES_LINKSTATUS_CONNECTED
)
1455 || (newstatus
== HERMES_LINKSTATUS_AP_CHANGE
)
1456 || (newstatus
== HERMES_LINKSTATUS_AP_IN_RANGE
);
1459 netif_carrier_on(dev
);
1460 else if (!ignore_disconnect
)
1461 netif_carrier_off(dev
);
1463 if (newstatus
!= priv
->last_linkstatus
) {
1464 priv
->last_linkstatus
= newstatus
;
1465 print_linkstatus(dev
, newstatus
);
1466 /* The info frame contains only one word which is the
1467 * status (see hermes.h). The status is pretty boring
1468 * in itself, that's why we export the new BSSID...
1470 schedule_work(&priv
->wevent_work
);
1474 case HERMES_INQ_SCAN
:
1475 if (!priv
->scan_request
&& priv
->bssid_fixed
&&
1476 priv
->firmware_type
== FIRMWARE_TYPE_INTERSIL
) {
1477 schedule_work(&priv
->join_work
);
1481 case HERMES_INQ_HOSTSCAN
:
1482 case HERMES_INQ_HOSTSCAN_SYMBOL
: {
1483 /* Result of a scanning. Contains information about
1484 * cells in the vicinity - Jean II */
1489 printk(KERN_WARNING
"%s: Scan results too large (%d bytes)\n",
1495 /* Allocate buffer for results */
1496 buf
= kmalloc(len
, GFP_ATOMIC
);
1498 /* No memory, so can't printk()... */
1503 /* Read scan data */
1504 err
= hw
->ops
->bap_pread(hw
, IRQ_BAP
, (void *) buf
, len
,
1505 infofid
, sizeof(info
));
1512 #ifdef ORINOCO_DEBUG
1515 printk(KERN_DEBUG
"Scan result [%02X", buf
[0]);
1516 for (i
= 1; i
< (len
* 2); i
++)
1517 printk(":%02X", buf
[i
]);
1520 #endif /* ORINOCO_DEBUG */
1522 qbuf_scan(priv
, buf
, len
, type
);
1525 case HERMES_INQ_CHANNELINFO
:
1527 struct agere_ext_scan_info
*bss
;
1529 if (!priv
->scan_request
) {
1530 printk(KERN_DEBUG
"%s: Got chaninfo without scan, "
1531 "len=%d\n", dev
->name
, len
);
1535 /* An empty result indicates that the scan is complete */
1537 qbuf_scan(priv
, NULL
, len
, type
);
1542 else if (len
< (offsetof(struct agere_ext_scan_info
,
1544 /* Drop this result now so we don't have to
1545 * keep checking later */
1547 "%s: Ext scan results too short (%d bytes)\n",
1552 bss
= kmalloc(len
, GFP_ATOMIC
);
1556 /* Read scan data */
1557 err
= hw
->ops
->bap_pread(hw
, IRQ_BAP
, (void *) bss
, len
,
1558 infofid
, sizeof(info
));
1562 qbuf_scan(priv
, bss
, len
, type
);
1566 case HERMES_INQ_SEC_STAT_AGERE
:
1567 /* Security status (Agere specific) */
1568 /* Ignore this frame for now */
1569 if (priv
->firmware_type
== FIRMWARE_TYPE_AGERE
)
1573 printk(KERN_DEBUG
"%s: Unknown information frame received: "
1574 "type 0x%04x, length %d\n", dev
->name
, type
, len
);
1575 /* We don't actually do anything about it */
1581 EXPORT_SYMBOL(__orinoco_ev_info
);
1583 static void __orinoco_ev_infdrop(struct net_device
*dev
, hermes_t
*hw
)
1585 if (net_ratelimit())
1586 printk(KERN_DEBUG
"%s: Information frame lost.\n", dev
->name
);
1589 /********************************************************************/
1590 /* Internal hardware control routines */
1591 /********************************************************************/
1593 static int __orinoco_up(struct orinoco_private
*priv
)
1595 struct net_device
*dev
= priv
->ndev
;
1596 struct hermes
*hw
= &priv
->hw
;
1599 netif_carrier_off(dev
); /* just to make sure */
1601 err
= __orinoco_commit(priv
);
1603 printk(KERN_ERR
"%s: Error %d configuring card\n",
1608 /* Fire things up again */
1609 hermes_set_irqmask(hw
, ORINOCO_INTEN
);
1610 err
= hermes_enable_port(hw
, 0);
1612 printk(KERN_ERR
"%s: Error %d enabling MAC port\n",
1617 netif_start_queue(dev
);
1622 static int __orinoco_down(struct orinoco_private
*priv
)
1624 struct net_device
*dev
= priv
->ndev
;
1625 struct hermes
*hw
= &priv
->hw
;
1628 netif_stop_queue(dev
);
1630 if (!priv
->hw_unavailable
) {
1631 if (!priv
->broken_disableport
) {
1632 err
= hermes_disable_port(hw
, 0);
1634 /* Some firmwares (e.g. Intersil 1.3.x) seem
1635 * to have problems disabling the port, oh
1637 printk(KERN_WARNING
"%s: Error %d disabling MAC port\n",
1639 priv
->broken_disableport
= 1;
1642 hermes_set_irqmask(hw
, 0);
1643 hermes_write_regn(hw
, EVACK
, 0xffff);
1646 /* firmware will have to reassociate */
1647 netif_carrier_off(dev
);
1648 priv
->last_linkstatus
= 0xffff;
1653 static int orinoco_reinit_firmware(struct orinoco_private
*priv
)
1655 struct hermes
*hw
= &priv
->hw
;
1658 err
= hw
->ops
->init(hw
);
1659 if (priv
->do_fw_download
&& !err
) {
1660 err
= orinoco_download(priv
);
1662 priv
->do_fw_download
= 0;
1665 err
= orinoco_hw_allocate_fid(priv
);
1671 __orinoco_set_multicast_list(struct net_device
*dev
)
1673 struct orinoco_private
*priv
= ndev_priv(dev
);
1675 int promisc
, mc_count
;
1677 /* The Hermes doesn't seem to have an allmulti mode, so we go
1678 * into promiscuous mode and let the upper levels deal. */
1679 if ((dev
->flags
& IFF_PROMISC
) || (dev
->flags
& IFF_ALLMULTI
) ||
1680 (netdev_mc_count(dev
) > MAX_MULTICAST(priv
))) {
1685 mc_count
= netdev_mc_count(dev
);
1688 err
= __orinoco_hw_set_multicast_list(priv
, dev
, mc_count
, promisc
);
1693 /* This must be called from user context, without locks held - use
1694 * schedule_work() */
1695 void orinoco_reset(struct work_struct
*work
)
1697 struct orinoco_private
*priv
=
1698 container_of(work
, struct orinoco_private
, reset_work
);
1699 struct net_device
*dev
= priv
->ndev
;
1700 struct hermes
*hw
= &priv
->hw
;
1702 unsigned long flags
;
1704 if (orinoco_lock(priv
, &flags
) != 0)
1705 /* When the hardware becomes available again, whatever
1706 * detects that is responsible for re-initializing
1707 * it. So no need for anything further */
1710 netif_stop_queue(dev
);
1712 /* Shut off interrupts. Depending on what state the hardware
1713 * is in, this might not work, but we'll try anyway */
1714 hermes_set_irqmask(hw
, 0);
1715 hermes_write_regn(hw
, EVACK
, 0xffff);
1717 priv
->hw_unavailable
++;
1718 priv
->last_linkstatus
= 0xffff; /* firmware will have to reassociate */
1719 netif_carrier_off(dev
);
1721 orinoco_unlock(priv
, &flags
);
1723 /* Scanning support: Notify scan cancellation */
1724 if (priv
->scan_request
) {
1725 cfg80211_scan_done(priv
->scan_request
, 1);
1726 priv
->scan_request
= NULL
;
1729 if (priv
->hard_reset
) {
1730 err
= (*priv
->hard_reset
)(priv
);
1732 printk(KERN_ERR
"%s: orinoco_reset: Error %d "
1733 "performing hard reset\n", dev
->name
, err
);
1738 err
= orinoco_reinit_firmware(priv
);
1740 printk(KERN_ERR
"%s: orinoco_reset: Error %d re-initializing firmware\n",
1745 /* This has to be called from user context */
1746 orinoco_lock_irq(priv
);
1748 priv
->hw_unavailable
--;
1750 /* priv->open or priv->hw_unavailable might have changed while
1751 * we dropped the lock */
1752 if (priv
->open
&& (!priv
->hw_unavailable
)) {
1753 err
= __orinoco_up(priv
);
1755 printk(KERN_ERR
"%s: orinoco_reset: Error %d reenabling card\n",
1758 dev
->trans_start
= jiffies
;
1761 orinoco_unlock_irq(priv
);
1765 hermes_set_irqmask(hw
, 0);
1766 netif_device_detach(dev
);
1767 printk(KERN_ERR
"%s: Device has been disabled!\n", dev
->name
);
1770 static int __orinoco_commit(struct orinoco_private
*priv
)
1772 struct net_device
*dev
= priv
->ndev
;
1775 err
= orinoco_hw_program_rids(priv
);
1777 /* FIXME: what about netif_tx_lock */
1778 (void) __orinoco_set_multicast_list(dev
);
1783 /* Ensures configuration changes are applied. May result in a reset.
1784 * The caller should hold priv->lock
1786 int orinoco_commit(struct orinoco_private
*priv
)
1788 struct net_device
*dev
= priv
->ndev
;
1789 hermes_t
*hw
= &priv
->hw
;
1792 if (priv
->broken_disableport
) {
1793 schedule_work(&priv
->reset_work
);
1797 err
= hermes_disable_port(hw
, 0);
1799 printk(KERN_WARNING
"%s: Unable to disable port "
1800 "while reconfiguring card\n", dev
->name
);
1801 priv
->broken_disableport
= 1;
1805 err
= __orinoco_commit(priv
);
1807 printk(KERN_WARNING
"%s: Unable to reconfigure card\n",
1812 err
= hermes_enable_port(hw
, 0);
1814 printk(KERN_WARNING
"%s: Unable to enable port while reconfiguring card\n",
1821 printk(KERN_WARNING
"%s: Resetting instead...\n", dev
->name
);
1822 schedule_work(&priv
->reset_work
);
1828 /********************************************************************/
1829 /* Interrupt handler */
1830 /********************************************************************/
1832 static void __orinoco_ev_tick(struct net_device
*dev
, hermes_t
*hw
)
1834 printk(KERN_DEBUG
"%s: TICK\n", dev
->name
);
1837 static void __orinoco_ev_wterr(struct net_device
*dev
, hermes_t
*hw
)
1839 /* This seems to happen a fair bit under load, but ignoring it
1840 seems to work fine...*/
1841 printk(KERN_DEBUG
"%s: MAC controller error (WTERR). Ignoring.\n",
1845 irqreturn_t
orinoco_interrupt(int irq
, void *dev_id
)
1847 struct orinoco_private
*priv
= dev_id
;
1848 struct net_device
*dev
= priv
->ndev
;
1849 hermes_t
*hw
= &priv
->hw
;
1850 int count
= MAX_IRQLOOPS_PER_IRQ
;
1852 /* These are used to detect a runaway interrupt situation.
1854 * If we get more than MAX_IRQLOOPS_PER_JIFFY iterations in a jiffy,
1855 * we panic and shut down the hardware
1857 /* jiffies value the last time we were called */
1858 static int last_irq_jiffy
; /* = 0 */
1859 static int loops_this_jiffy
; /* = 0 */
1860 unsigned long flags
;
1862 if (orinoco_lock(priv
, &flags
) != 0) {
1863 /* If hw is unavailable - we don't know if the irq was
1868 evstat
= hermes_read_regn(hw
, EVSTAT
);
1869 events
= evstat
& hw
->inten
;
1871 orinoco_unlock(priv
, &flags
);
1875 if (jiffies
!= last_irq_jiffy
)
1876 loops_this_jiffy
= 0;
1877 last_irq_jiffy
= jiffies
;
1879 while (events
&& count
--) {
1880 if (++loops_this_jiffy
> MAX_IRQLOOPS_PER_JIFFY
) {
1881 printk(KERN_WARNING
"%s: IRQ handler is looping too "
1882 "much! Resetting.\n", dev
->name
);
1883 /* Disable interrupts for now */
1884 hermes_set_irqmask(hw
, 0);
1885 schedule_work(&priv
->reset_work
);
1889 /* Check the card hasn't been removed */
1890 if (!hermes_present(hw
)) {
1891 DEBUG(0, "orinoco_interrupt(): card removed\n");
1895 if (events
& HERMES_EV_TICK
)
1896 __orinoco_ev_tick(dev
, hw
);
1897 if (events
& HERMES_EV_WTERR
)
1898 __orinoco_ev_wterr(dev
, hw
);
1899 if (events
& HERMES_EV_INFDROP
)
1900 __orinoco_ev_infdrop(dev
, hw
);
1901 if (events
& HERMES_EV_INFO
)
1902 __orinoco_ev_info(dev
, hw
);
1903 if (events
& HERMES_EV_RX
)
1904 __orinoco_ev_rx(dev
, hw
);
1905 if (events
& HERMES_EV_TXEXC
)
1906 __orinoco_ev_txexc(dev
, hw
);
1907 if (events
& HERMES_EV_TX
)
1908 __orinoco_ev_tx(dev
, hw
);
1909 if (events
& HERMES_EV_ALLOC
)
1910 __orinoco_ev_alloc(dev
, hw
);
1912 hermes_write_regn(hw
, EVACK
, evstat
);
1914 evstat
= hermes_read_regn(hw
, EVSTAT
);
1915 events
= evstat
& hw
->inten
;
1918 orinoco_unlock(priv
, &flags
);
1921 EXPORT_SYMBOL(orinoco_interrupt
);
1923 /********************************************************************/
1924 /* Power management */
1925 /********************************************************************/
1926 #if defined(CONFIG_PM_SLEEP) && !defined(CONFIG_HERMES_CACHE_FW_ON_INIT)
1927 static int orinoco_pm_notifier(struct notifier_block
*notifier
,
1928 unsigned long pm_event
,
1931 struct orinoco_private
*priv
= container_of(notifier
,
1932 struct orinoco_private
,
1935 /* All we need to do is cache the firmware before suspend, and
1936 * release it when we come out.
1938 * Only need to do this if we're downloading firmware. */
1939 if (!priv
->do_fw_download
)
1943 case PM_HIBERNATION_PREPARE
:
1944 case PM_SUSPEND_PREPARE
:
1945 orinoco_cache_fw(priv
, 0);
1948 case PM_POST_RESTORE
:
1949 /* Restore from hibernation failed. We need to clean
1950 * up in exactly the same way, so fall through. */
1951 case PM_POST_HIBERNATION
:
1952 case PM_POST_SUSPEND
:
1953 orinoco_uncache_fw(priv
);
1956 case PM_RESTORE_PREPARE
:
1964 static void orinoco_register_pm_notifier(struct orinoco_private
*priv
)
1966 priv
->pm_notifier
.notifier_call
= orinoco_pm_notifier
;
1967 register_pm_notifier(&priv
->pm_notifier
);
1970 static void orinoco_unregister_pm_notifier(struct orinoco_private
*priv
)
1972 unregister_pm_notifier(&priv
->pm_notifier
);
1974 #else /* !PM_SLEEP || HERMES_CACHE_FW_ON_INIT */
1975 #define orinoco_register_pm_notifier(priv) do { } while(0)
1976 #define orinoco_unregister_pm_notifier(priv) do { } while(0)
1979 /********************************************************************/
1980 /* Initialization */
1981 /********************************************************************/
1983 int orinoco_init(struct orinoco_private
*priv
)
1985 struct device
*dev
= priv
->dev
;
1986 struct wiphy
*wiphy
= priv_to_wiphy(priv
);
1987 hermes_t
*hw
= &priv
->hw
;
1990 /* No need to lock, the hw_unavailable flag is already set in
1991 * alloc_orinocodev() */
1992 priv
->nicbuf_size
= IEEE80211_MAX_FRAME_LEN
+ ETH_HLEN
;
1994 /* Initialize the firmware */
1995 err
= hw
->ops
->init(hw
);
1997 dev_err(dev
, "Failed to initialize firmware (err = %d)\n",
2002 err
= determine_fw_capabilities(priv
, wiphy
->fw_version
,
2003 sizeof(wiphy
->fw_version
),
2004 &wiphy
->hw_version
);
2006 dev_err(dev
, "Incompatible firmware, aborting\n");
2010 if (priv
->do_fw_download
) {
2011 #ifdef CONFIG_HERMES_CACHE_FW_ON_INIT
2012 orinoco_cache_fw(priv
, 0);
2015 err
= orinoco_download(priv
);
2017 priv
->do_fw_download
= 0;
2019 /* Check firmware version again */
2020 err
= determine_fw_capabilities(priv
, wiphy
->fw_version
,
2021 sizeof(wiphy
->fw_version
),
2022 &wiphy
->hw_version
);
2024 dev_err(dev
, "Incompatible firmware, aborting\n");
2029 if (priv
->has_port3
)
2030 dev_info(dev
, "Ad-hoc demo mode supported\n");
2032 dev_info(dev
, "IEEE standard IBSS ad-hoc mode supported\n");
2034 dev_info(dev
, "WEP supported, %s-bit key\n",
2035 priv
->has_big_wep
? "104" : "40");
2036 if (priv
->has_wpa
) {
2037 dev_info(dev
, "WPA-PSK supported\n");
2038 if (orinoco_mic_init(priv
)) {
2039 dev_err(dev
, "Failed to setup MIC crypto algorithm. "
2040 "Disabling WPA support\n");
2045 err
= orinoco_hw_read_card_settings(priv
, wiphy
->perm_addr
);
2049 err
= orinoco_hw_allocate_fid(priv
);
2051 dev_err(dev
, "Failed to allocate NIC buffer!\n");
2055 /* Set up the default configuration */
2056 priv
->iw_mode
= NL80211_IFTYPE_STATION
;
2057 /* By default use IEEE/IBSS ad-hoc mode if we have it */
2058 priv
->prefer_port3
= priv
->has_port3
&& (!priv
->has_ibss
);
2059 set_port_type(priv
);
2060 priv
->channel
= 0; /* use firmware default */
2062 priv
->promiscuous
= 0;
2063 priv
->encode_alg
= ORINOCO_ALG_NONE
;
2065 priv
->wpa_enabled
= 0;
2066 priv
->tkip_cm_active
= 0;
2068 priv
->wpa_ie_len
= 0;
2069 priv
->wpa_ie
= NULL
;
2071 if (orinoco_wiphy_register(wiphy
)) {
2076 /* Make the hardware available, as long as it hasn't been
2077 * removed elsewhere (e.g. by PCMCIA hot unplug) */
2078 orinoco_lock_irq(priv
);
2079 priv
->hw_unavailable
--;
2080 orinoco_unlock_irq(priv
);
2082 dev_dbg(dev
, "Ready\n");
2087 EXPORT_SYMBOL(orinoco_init
);
2089 static const struct net_device_ops orinoco_netdev_ops
= {
2090 .ndo_open
= orinoco_open
,
2091 .ndo_stop
= orinoco_stop
,
2092 .ndo_start_xmit
= orinoco_xmit
,
2093 .ndo_set_multicast_list
= orinoco_set_multicast_list
,
2094 .ndo_change_mtu
= orinoco_change_mtu
,
2095 .ndo_set_mac_address
= eth_mac_addr
,
2096 .ndo_validate_addr
= eth_validate_addr
,
2097 .ndo_tx_timeout
= orinoco_tx_timeout
,
2098 .ndo_get_stats
= orinoco_get_stats
,
2101 /* Allocate private data.
2103 * This driver has a number of structures associated with it
2104 * netdev - Net device structure for each network interface
2105 * wiphy - structure associated with wireless phy
2106 * wireless_dev (wdev) - structure for each wireless interface
2107 * hw - structure for hermes chip info
2108 * card - card specific structure for use by the card driver
2109 * (airport, orinoco_cs)
2110 * priv - orinoco private data
2111 * device - generic linux device structure
2113 * +---------+ +---------+
2114 * | wiphy | | netdev |
2115 * | +-------+ | +-------+
2116 * | | priv | | | wdev |
2117 * | | +-----+ +-+-------+
2123 * priv has a link to netdev and device
2124 * wdev has a link to wiphy
2126 struct orinoco_private
2127 *alloc_orinocodev(int sizeof_card
,
2128 struct device
*device
,
2129 int (*hard_reset
)(struct orinoco_private
*),
2130 int (*stop_fw
)(struct orinoco_private
*, int))
2132 struct orinoco_private
*priv
;
2133 struct wiphy
*wiphy
;
2136 * NOTE: We only support a single virtual interface
2137 * but this may change when monitor mode is added
2139 wiphy
= wiphy_new(&orinoco_cfg_ops
,
2140 sizeof(struct orinoco_private
) + sizeof_card
);
2144 priv
= wiphy_priv(wiphy
);
2148 priv
->card
= (void *)((unsigned long)priv
2149 + sizeof(struct orinoco_private
));
2153 orinoco_wiphy_init(wiphy
);
2156 priv
->wireless_data
.spy_data
= &priv
->spy_data
;
2159 /* Set up default callbacks */
2160 priv
->hard_reset
= hard_reset
;
2161 priv
->stop_fw
= stop_fw
;
2163 spin_lock_init(&priv
->lock
);
2165 priv
->hw_unavailable
= 1; /* orinoco_init() must clear this
2166 * before anything else touches the
2168 INIT_WORK(&priv
->reset_work
, orinoco_reset
);
2169 INIT_WORK(&priv
->join_work
, orinoco_join_ap
);
2170 INIT_WORK(&priv
->wevent_work
, orinoco_send_wevents
);
2172 INIT_LIST_HEAD(&priv
->rx_list
);
2173 tasklet_init(&priv
->rx_tasklet
, orinoco_rx_isr_tasklet
,
2174 (unsigned long) priv
);
2176 spin_lock_init(&priv
->scan_lock
);
2177 INIT_LIST_HEAD(&priv
->scan_list
);
2178 INIT_WORK(&priv
->process_scan
, orinoco_process_scan_results
);
2180 priv
->last_linkstatus
= 0xffff;
2182 #if defined(CONFIG_HERMES_CACHE_FW_ON_INIT) || defined(CONFIG_PM_SLEEP)
2183 priv
->cached_pri_fw
= NULL
;
2184 priv
->cached_fw
= NULL
;
2187 /* Register PM notifiers */
2188 orinoco_register_pm_notifier(priv
);
2192 EXPORT_SYMBOL(alloc_orinocodev
);
2194 /* We can only support a single interface. We provide a separate
2195 * function to set it up to distinguish between hardware
2196 * initialisation and interface setup.
2198 * The base_addr and irq parameters are passed on to netdev for use
2201 int orinoco_if_add(struct orinoco_private
*priv
,
2202 unsigned long base_addr
,
2204 const struct net_device_ops
*ops
)
2206 struct wiphy
*wiphy
= priv_to_wiphy(priv
);
2207 struct wireless_dev
*wdev
;
2208 struct net_device
*dev
;
2211 dev
= alloc_etherdev(sizeof(struct wireless_dev
));
2216 /* Initialise wireless_dev */
2217 wdev
= netdev_priv(dev
);
2218 wdev
->wiphy
= wiphy
;
2219 wdev
->iftype
= NL80211_IFTYPE_STATION
;
2221 /* Setup / override net_device fields */
2222 dev
->ieee80211_ptr
= wdev
;
2223 dev
->watchdog_timeo
= HZ
; /* 1 second timeout */
2224 dev
->wireless_handlers
= &orinoco_handler_def
;
2226 dev
->wireless_data
= &priv
->wireless_data
;
2228 /* Default to standard ops if not set */
2230 dev
->netdev_ops
= ops
;
2232 dev
->netdev_ops
= &orinoco_netdev_ops
;
2234 /* we use the default eth_mac_addr for setting the MAC addr */
2236 /* Reserve space in skb for the SNAP header */
2237 dev
->hard_header_len
+= ENCAPS_OVERHEAD
;
2239 netif_carrier_off(dev
);
2241 memcpy(dev
->dev_addr
, wiphy
->perm_addr
, ETH_ALEN
);
2242 memcpy(dev
->perm_addr
, wiphy
->perm_addr
, ETH_ALEN
);
2244 dev
->base_addr
= base_addr
;
2247 SET_NETDEV_DEV(dev
, priv
->dev
);
2248 ret
= register_netdev(dev
);
2254 /* Report what we've done */
2255 dev_dbg(priv
->dev
, "Registerred interface %s.\n", dev
->name
);
2263 EXPORT_SYMBOL(orinoco_if_add
);
2265 void orinoco_if_del(struct orinoco_private
*priv
)
2267 struct net_device
*dev
= priv
->ndev
;
2269 unregister_netdev(dev
);
2272 EXPORT_SYMBOL(orinoco_if_del
);
2274 void free_orinocodev(struct orinoco_private
*priv
)
2276 struct wiphy
*wiphy
= priv_to_wiphy(priv
);
2277 struct orinoco_rx_data
*rx_data
, *temp
;
2278 struct orinoco_scan_data
*sd
, *sdtemp
;
2280 wiphy_unregister(wiphy
);
2282 /* If the tasklet is scheduled when we call tasklet_kill it
2283 * will run one final time. However the tasklet will only
2284 * drain priv->rx_list if the hw is still available. */
2285 tasklet_kill(&priv
->rx_tasklet
);
2287 /* Explicitly drain priv->rx_list */
2288 list_for_each_entry_safe(rx_data
, temp
, &priv
->rx_list
, list
) {
2289 list_del(&rx_data
->list
);
2291 dev_kfree_skb(rx_data
->skb
);
2292 kfree(rx_data
->desc
);
2296 cancel_work_sync(&priv
->process_scan
);
2297 /* Explicitly drain priv->scan_list */
2298 list_for_each_entry_safe(sd
, sdtemp
, &priv
->scan_list
, list
) {
2299 list_del(&sd
->list
);
2301 if ((sd
->len
> 0) && sd
->buf
)
2306 orinoco_unregister_pm_notifier(priv
);
2307 orinoco_uncache_fw(priv
);
2309 priv
->wpa_ie_len
= 0;
2310 kfree(priv
->wpa_ie
);
2311 orinoco_mic_free(priv
);
2314 EXPORT_SYMBOL(free_orinocodev
);
2316 int orinoco_up(struct orinoco_private
*priv
)
2318 struct net_device
*dev
= priv
->ndev
;
2319 unsigned long flags
;
2322 priv
->hw
.ops
->lock_irqsave(&priv
->lock
, &flags
);
2324 err
= orinoco_reinit_firmware(priv
);
2326 printk(KERN_ERR
"%s: Error %d re-initializing firmware\n",
2331 netif_device_attach(dev
);
2332 priv
->hw_unavailable
--;
2334 if (priv
->open
&& !priv
->hw_unavailable
) {
2335 err
= __orinoco_up(priv
);
2337 printk(KERN_ERR
"%s: Error %d restarting card\n",
2342 priv
->hw
.ops
->unlock_irqrestore(&priv
->lock
, &flags
);
2346 EXPORT_SYMBOL(orinoco_up
);
2348 void orinoco_down(struct orinoco_private
*priv
)
2350 struct net_device
*dev
= priv
->ndev
;
2351 unsigned long flags
;
2354 priv
->hw
.ops
->lock_irqsave(&priv
->lock
, &flags
);
2355 err
= __orinoco_down(priv
);
2357 printk(KERN_WARNING
"%s: Error %d downing interface\n",
2360 netif_device_detach(dev
);
2361 priv
->hw_unavailable
++;
2362 priv
->hw
.ops
->unlock_irqrestore(&priv
->lock
, &flags
);
2364 EXPORT_SYMBOL(orinoco_down
);
2366 /********************************************************************/
2367 /* Module initialization */
2368 /********************************************************************/
2370 /* Can't be declared "const" or the whole __initdata section will
2372 static char version
[] __initdata
= DRIVER_NAME
" " DRIVER_VERSION
2373 " (David Gibson <hermes@gibson.dropbear.id.au>, "
2374 "Pavel Roskin <proski@gnu.org>, et al)";
2376 static int __init
init_orinoco(void)
2378 printk(KERN_DEBUG
"%s\n", version
);
2382 static void __exit
exit_orinoco(void)
2386 module_init(init_orinoco
);
2387 module_exit(exit_orinoco
);