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 bool 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
;
177 /* Rx frame header except compatibility 802.3 header */
178 struct hermes_rx_descriptor
{
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 /* Add encapsulation and MIC to the existing SKB.
344 * The main xmit routine will then send the whole lot to the card.
345 * Need 8 bytes headroom
346 * Need 8 bytes tailroom
348 * With encapsulated ethernet II frame
350 * 803.3 header (14 bytes)
353 * 803.3 header (14 bytes) len[2]
354 * dst[6] 803.2 header (8 bytes)
356 * len[2] <- leave alone -> len[2]
357 * -------- -------- <-- 0
365 * returns 0 on success, -ENOMEM on error.
367 int orinoco_process_xmit_skb(struct sk_buff
*skb
,
368 struct net_device
*dev
,
369 struct orinoco_private
*priv
,
373 struct orinoco_tkip_key
*key
;
377 key
= (struct orinoco_tkip_key
*) priv
->keys
[priv
->tx_key
].key
;
379 do_mic
= ((priv
->encode_alg
== ORINOCO_ALG_TKIP
) &&
383 *tx_control
|= (priv
->tx_key
<< HERMES_MIC_KEY_ID_SHIFT
) |
386 eh
= (struct ethhdr
*)skb
->data
;
388 /* Encapsulate Ethernet-II frames */
389 if (ntohs(eh
->h_proto
) > ETH_DATA_LEN
) { /* Ethernet-II frame */
390 struct header_struct
{
391 struct ethhdr eth
; /* 802.3 header */
392 u8 encap
[6]; /* 802.2 header */
394 int len
= skb
->len
+ sizeof(encaps_hdr
) - (2 * ETH_ALEN
);
396 if (skb_headroom(skb
) < ENCAPS_OVERHEAD
) {
399 "%s: Not enough headroom for 802.2 headers %d\n",
400 dev
->name
, skb_headroom(skb
));
404 /* Fill in new header */
405 memcpy(&hdr
.eth
, eh
, 2 * ETH_ALEN
);
406 hdr
.eth
.h_proto
= htons(len
);
407 memcpy(hdr
.encap
, encaps_hdr
, sizeof(encaps_hdr
));
409 /* Make room for the new header, and copy it in */
410 eh
= (struct ethhdr
*) skb_push(skb
, ENCAPS_OVERHEAD
);
411 memcpy(eh
, &hdr
, sizeof(hdr
));
414 /* Calculate Michael MIC */
416 size_t len
= skb
->len
- ETH_HLEN
;
417 u8
*mic
= &mic_buf
[0];
419 /* Have to write to an even address, so copy the spare
422 *mic
= skb
->data
[skb
->len
- 1];
426 orinoco_mic(priv
->tx_tfm_mic
, key
->tx_mic
,
427 eh
->h_dest
, eh
->h_source
, 0 /* priority */,
428 skb
->data
+ ETH_HLEN
,
434 EXPORT_SYMBOL(orinoco_process_xmit_skb
);
436 static netdev_tx_t
orinoco_xmit(struct sk_buff
*skb
, struct net_device
*dev
)
438 struct orinoco_private
*priv
= ndev_priv(dev
);
439 struct net_device_stats
*stats
= &priv
->stats
;
440 struct hermes
*hw
= &priv
->hw
;
442 u16 txfid
= priv
->txfid
;
445 u8 mic_buf
[MICHAEL_MIC_LEN
+ 1];
447 if (!netif_running(dev
)) {
448 printk(KERN_ERR
"%s: Tx on stopped device!\n",
450 return NETDEV_TX_BUSY
;
453 if (netif_queue_stopped(dev
)) {
454 printk(KERN_DEBUG
"%s: Tx while transmitter busy!\n",
456 return NETDEV_TX_BUSY
;
459 if (orinoco_lock(priv
, &flags
) != 0) {
460 printk(KERN_ERR
"%s: orinoco_xmit() called while hw_unavailable\n",
462 return NETDEV_TX_BUSY
;
465 if (!netif_carrier_ok(dev
) ||
466 (priv
->iw_mode
== NL80211_IFTYPE_MONITOR
)) {
467 /* Oops, the firmware hasn't established a connection,
468 silently drop the packet (this seems to be the
473 /* Check packet length */
474 if (skb
->len
< ETH_HLEN
)
477 tx_control
= HERMES_TXCTRL_TX_OK
| HERMES_TXCTRL_TX_EX
;
479 err
= orinoco_process_xmit_skb(skb
, dev
, priv
, &tx_control
,
484 if (priv
->has_alt_txcntl
) {
485 /* WPA enabled firmwares have tx_cntl at the end of
486 * the 802.11 header. So write zeroed descriptor and
487 * 802.11 header at the same time
489 char desc
[HERMES_802_3_OFFSET
];
490 __le16
*txcntl
= (__le16
*) &desc
[HERMES_TXCNTL2_OFFSET
];
492 memset(&desc
, 0, sizeof(desc
));
494 *txcntl
= cpu_to_le16(tx_control
);
495 err
= hw
->ops
->bap_pwrite(hw
, USER_BAP
, &desc
, sizeof(desc
),
499 printk(KERN_ERR
"%s: Error %d writing Tx "
500 "descriptor to BAP\n", dev
->name
, err
);
504 struct hermes_tx_descriptor desc
;
506 memset(&desc
, 0, sizeof(desc
));
508 desc
.tx_control
= cpu_to_le16(tx_control
);
509 err
= hw
->ops
->bap_pwrite(hw
, USER_BAP
, &desc
, sizeof(desc
),
513 printk(KERN_ERR
"%s: Error %d writing Tx "
514 "descriptor to BAP\n", dev
->name
, err
);
518 /* Clear the 802.11 header and data length fields - some
519 * firmwares (e.g. Lucent/Agere 8.xx) appear to get confused
520 * if this isn't done. */
521 hermes_clear_words(hw
, HERMES_DATA0
,
522 HERMES_802_3_OFFSET
- HERMES_802_11_OFFSET
);
525 err
= hw
->ops
->bap_pwrite(hw
, USER_BAP
, skb
->data
, skb
->len
,
526 txfid
, HERMES_802_3_OFFSET
);
528 printk(KERN_ERR
"%s: Error %d writing packet to BAP\n",
533 if (tx_control
& HERMES_TXCTRL_MIC
) {
534 size_t offset
= HERMES_802_3_OFFSET
+ skb
->len
;
535 size_t len
= MICHAEL_MIC_LEN
;
541 err
= hw
->ops
->bap_pwrite(hw
, USER_BAP
, &mic_buf
[0], len
,
544 printk(KERN_ERR
"%s: Error %d writing MIC to BAP\n",
550 /* Finally, we actually initiate the send */
551 netif_stop_queue(dev
);
553 err
= hw
->ops
->cmd_wait(hw
, HERMES_CMD_TX
| HERMES_CMD_RECL
,
556 netif_start_queue(dev
);
558 printk(KERN_ERR
"%s: Error %d transmitting packet\n",
563 stats
->tx_bytes
+= HERMES_802_3_OFFSET
+ skb
->len
;
571 orinoco_unlock(priv
, &flags
);
577 schedule_work(&priv
->reset_work
);
578 orinoco_unlock(priv
, &flags
);
579 return NETDEV_TX_BUSY
;
582 static void __orinoco_ev_alloc(struct net_device
*dev
, struct hermes
*hw
)
584 struct orinoco_private
*priv
= ndev_priv(dev
);
585 u16 fid
= hermes_read_regn(hw
, ALLOCFID
);
587 if (fid
!= priv
->txfid
) {
588 if (fid
!= DUMMY_FID
)
589 printk(KERN_WARNING
"%s: Allocate event on unexpected fid (%04X)\n",
594 hermes_write_regn(hw
, ALLOCFID
, DUMMY_FID
);
597 static void __orinoco_ev_tx(struct net_device
*dev
, struct hermes
*hw
)
599 struct orinoco_private
*priv
= ndev_priv(dev
);
600 struct net_device_stats
*stats
= &priv
->stats
;
604 netif_wake_queue(dev
);
606 hermes_write_regn(hw
, TXCOMPLFID
, DUMMY_FID
);
609 static void __orinoco_ev_txexc(struct net_device
*dev
, struct hermes
*hw
)
611 struct orinoco_private
*priv
= ndev_priv(dev
);
612 struct net_device_stats
*stats
= &priv
->stats
;
613 u16 fid
= hermes_read_regn(hw
, TXCOMPLFID
);
615 struct hermes_txexc_data hdr
;
618 if (fid
== DUMMY_FID
)
619 return; /* Nothing's really happened */
621 /* Read part of the frame header - we need status and addr1 */
622 err
= hw
->ops
->bap_pread(hw
, IRQ_BAP
, &hdr
,
623 sizeof(struct hermes_txexc_data
),
626 hermes_write_regn(hw
, TXCOMPLFID
, DUMMY_FID
);
630 printk(KERN_WARNING
"%s: Unable to read descriptor on Tx error "
631 "(FID=%04X error %d)\n",
632 dev
->name
, fid
, err
);
636 DEBUG(1, "%s: Tx error, err %d (FID=%04X)\n", dev
->name
,
639 /* We produce a TXDROP event only for retry or lifetime
640 * exceeded, because that's the only status that really mean
641 * that this particular node went away.
642 * Other errors means that *we* screwed up. - Jean II */
643 status
= le16_to_cpu(hdr
.desc
.status
);
644 if (status
& (HERMES_TXSTAT_RETRYERR
| HERMES_TXSTAT_AGEDERR
)) {
645 union iwreq_data wrqu
;
647 /* Copy 802.11 dest address.
648 * We use the 802.11 header because the frame may
649 * not be 802.3 or may be mangled...
650 * In Ad-Hoc mode, it will be the node address.
651 * In managed mode, it will be most likely the AP addr
652 * User space will figure out how to convert it to
653 * whatever it needs (IP address or else).
655 memcpy(wrqu
.addr
.sa_data
, hdr
.addr1
, ETH_ALEN
);
656 wrqu
.addr
.sa_family
= ARPHRD_ETHER
;
658 /* Send event to user space */
659 wireless_send_event(dev
, IWEVTXDROP
, &wrqu
, NULL
);
662 netif_wake_queue(dev
);
665 void orinoco_tx_timeout(struct net_device
*dev
)
667 struct orinoco_private
*priv
= ndev_priv(dev
);
668 struct net_device_stats
*stats
= &priv
->stats
;
669 struct hermes
*hw
= &priv
->hw
;
671 printk(KERN_WARNING
"%s: Tx timeout! "
672 "ALLOCFID=%04x, TXCOMPLFID=%04x, EVSTAT=%04x\n",
673 dev
->name
, hermes_read_regn(hw
, ALLOCFID
),
674 hermes_read_regn(hw
, TXCOMPLFID
), hermes_read_regn(hw
, EVSTAT
));
678 schedule_work(&priv
->reset_work
);
680 EXPORT_SYMBOL(orinoco_tx_timeout
);
682 /********************************************************************/
683 /* Rx path (data frames) */
684 /********************************************************************/
686 /* Does the frame have a SNAP header indicating it should be
687 * de-encapsulated to Ethernet-II? */
688 static inline int is_ethersnap(void *_hdr
)
692 /* We de-encapsulate all packets which, a) have SNAP headers
693 * (i.e. SSAP=DSAP=0xaa and CTRL=0x3 in the 802.2 LLC header
694 * and where b) the OUI of the SNAP header is 00:00:00 or
695 * 00:00:f8 - we need both because different APs appear to use
696 * different OUIs for some reason */
697 return (memcmp(hdr
, &encaps_hdr
, 5) == 0)
698 && ((hdr
[5] == 0x00) || (hdr
[5] == 0xf8));
701 static inline void orinoco_spy_gather(struct net_device
*dev
, u_char
*mac
,
702 int level
, int noise
)
704 struct iw_quality wstats
;
705 wstats
.level
= level
- 0x95;
706 wstats
.noise
= noise
- 0x95;
707 wstats
.qual
= (level
> noise
) ? (level
- noise
) : 0;
708 wstats
.updated
= IW_QUAL_ALL_UPDATED
| IW_QUAL_DBM
;
709 /* Update spy records */
710 wireless_spy_update(dev
, mac
, &wstats
);
713 static void orinoco_stat_gather(struct net_device
*dev
,
715 struct hermes_rx_descriptor
*desc
)
717 struct orinoco_private
*priv
= ndev_priv(dev
);
719 /* Using spy support with lots of Rx packets, like in an
720 * infrastructure (AP), will really slow down everything, because
721 * the MAC address must be compared to each entry of the spy list.
722 * If the user really asks for it (set some address in the
723 * spy list), we do it, but he will pay the price.
724 * Note that to get here, you need both WIRELESS_SPY
725 * compiled in AND some addresses in the list !!!
727 /* Note : gcc will optimise the whole section away if
728 * WIRELESS_SPY is not defined... - Jean II */
729 if (SPY_NUMBER(priv
)) {
730 orinoco_spy_gather(dev
, skb_mac_header(skb
) + ETH_ALEN
,
731 desc
->signal
, desc
->silence
);
736 * orinoco_rx_monitor - handle received monitor frames.
741 * desc rx descriptor of the frame
743 * Call context: interrupt
745 static void orinoco_rx_monitor(struct net_device
*dev
, u16 rxfid
,
746 struct hermes_rx_descriptor
*desc
)
748 u32 hdrlen
= 30; /* return full header by default */
754 struct orinoco_private
*priv
= ndev_priv(dev
);
755 struct net_device_stats
*stats
= &priv
->stats
;
756 struct hermes
*hw
= &priv
->hw
;
758 len
= le16_to_cpu(desc
->data_len
);
760 /* Determine the size of the header and the data */
761 fc
= le16_to_cpu(desc
->frame_ctl
);
762 switch (fc
& IEEE80211_FCTL_FTYPE
) {
763 case IEEE80211_FTYPE_DATA
:
764 if ((fc
& IEEE80211_FCTL_TODS
)
765 && (fc
& IEEE80211_FCTL_FROMDS
))
771 case IEEE80211_FTYPE_MGMT
:
775 case IEEE80211_FTYPE_CTL
:
776 switch (fc
& IEEE80211_FCTL_STYPE
) {
777 case IEEE80211_STYPE_PSPOLL
:
778 case IEEE80211_STYPE_RTS
:
779 case IEEE80211_STYPE_CFEND
:
780 case IEEE80211_STYPE_CFENDACK
:
783 case IEEE80211_STYPE_CTS
:
784 case IEEE80211_STYPE_ACK
:
790 /* Unknown frame type */
794 /* sanity check the length */
795 if (datalen
> IEEE80211_MAX_DATA_LEN
+ 12) {
796 printk(KERN_DEBUG
"%s: oversized monitor frame, "
797 "data length = %d\n", dev
->name
, datalen
);
798 stats
->rx_length_errors
++;
802 skb
= dev_alloc_skb(hdrlen
+ datalen
);
804 printk(KERN_WARNING
"%s: Cannot allocate skb for monitor frame\n",
809 /* Copy the 802.11 header to the skb */
810 memcpy(skb_put(skb
, hdrlen
), &(desc
->frame_ctl
), hdrlen
);
811 skb_reset_mac_header(skb
);
813 /* If any, copy the data from the card to the skb */
815 err
= hw
->ops
->bap_pread(hw
, IRQ_BAP
, skb_put(skb
, datalen
),
816 ALIGN(datalen
, 2), rxfid
,
817 HERMES_802_2_OFFSET
);
819 printk(KERN_ERR
"%s: error %d reading monitor frame\n",
826 skb
->ip_summed
= CHECKSUM_NONE
;
827 skb
->pkt_type
= PACKET_OTHERHOST
;
828 skb
->protocol
= cpu_to_be16(ETH_P_802_2
);
831 stats
->rx_bytes
+= skb
->len
;
837 dev_kfree_skb_irq(skb
);
843 void __orinoco_ev_rx(struct net_device
*dev
, struct hermes
*hw
)
845 struct orinoco_private
*priv
= ndev_priv(dev
);
846 struct net_device_stats
*stats
= &priv
->stats
;
847 struct iw_statistics
*wstats
= &priv
->wstats
;
848 struct sk_buff
*skb
= NULL
;
851 struct hermes_rx_descriptor
*desc
;
852 struct orinoco_rx_data
*rx_data
;
855 desc
= kmalloc(sizeof(*desc
), GFP_ATOMIC
);
858 "%s: Can't allocate space for RX descriptor\n",
863 rxfid
= hermes_read_regn(hw
, RXFID
);
865 err
= hw
->ops
->bap_pread(hw
, IRQ_BAP
, desc
, sizeof(*desc
),
868 printk(KERN_ERR
"%s: error %d reading Rx descriptor. "
869 "Frame dropped.\n", dev
->name
, err
);
873 status
= le16_to_cpu(desc
->status
);
875 if (status
& HERMES_RXSTAT_BADCRC
) {
876 DEBUG(1, "%s: Bad CRC on Rx. Frame dropped.\n",
878 stats
->rx_crc_errors
++;
882 /* Handle frames in monitor mode */
883 if (priv
->iw_mode
== NL80211_IFTYPE_MONITOR
) {
884 orinoco_rx_monitor(dev
, rxfid
, desc
);
888 if (status
& HERMES_RXSTAT_UNDECRYPTABLE
) {
889 DEBUG(1, "%s: Undecryptable frame on Rx. Frame dropped.\n",
891 wstats
->discard
.code
++;
895 length
= le16_to_cpu(desc
->data_len
);
898 if (length
< 3) { /* No for even an 802.2 LLC header */
899 /* At least on Symbol firmware with PCF we get quite a
900 lot of these legitimately - Poll frames with no
904 if (length
> IEEE80211_MAX_DATA_LEN
) {
905 printk(KERN_WARNING
"%s: Oversized frame received (%d bytes)\n",
907 stats
->rx_length_errors
++;
911 /* Payload size does not include Michael MIC. Increase payload
912 * size to read it together with the data. */
913 if (status
& HERMES_RXSTAT_MIC
)
914 length
+= MICHAEL_MIC_LEN
;
916 /* We need space for the packet data itself, plus an ethernet
917 header, plus 2 bytes so we can align the IP header on a
918 32bit boundary, plus 1 byte so we can read in odd length
919 packets from the card, which has an IO granularity of 16
921 skb
= dev_alloc_skb(length
+ ETH_HLEN
+ 2 + 1);
923 printk(KERN_WARNING
"%s: Can't allocate skb for Rx\n",
928 /* We'll prepend the header, so reserve space for it. The worst
929 case is no decapsulation, when 802.3 header is prepended and
930 nothing is removed. 2 is for aligning the IP header. */
931 skb_reserve(skb
, ETH_HLEN
+ 2);
933 err
= hw
->ops
->bap_pread(hw
, IRQ_BAP
, skb_put(skb
, length
),
934 ALIGN(length
, 2), rxfid
,
935 HERMES_802_2_OFFSET
);
937 printk(KERN_ERR
"%s: error %d reading frame. "
938 "Frame dropped.\n", dev
->name
, err
);
942 /* Add desc and skb to rx queue */
943 rx_data
= kzalloc(sizeof(*rx_data
), GFP_ATOMIC
);
945 printk(KERN_WARNING
"%s: Can't allocate RX packet\n",
949 rx_data
->desc
= desc
;
951 list_add_tail(&rx_data
->list
, &priv
->rx_list
);
952 tasklet_schedule(&priv
->rx_tasklet
);
957 dev_kfree_skb_irq(skb
);
964 EXPORT_SYMBOL(__orinoco_ev_rx
);
966 static void orinoco_rx(struct net_device
*dev
,
967 struct hermes_rx_descriptor
*desc
,
970 struct orinoco_private
*priv
= ndev_priv(dev
);
971 struct net_device_stats
*stats
= &priv
->stats
;
976 status
= le16_to_cpu(desc
->status
);
977 length
= le16_to_cpu(desc
->data_len
);
978 fc
= le16_to_cpu(desc
->frame_ctl
);
980 /* Calculate and check MIC */
981 if (status
& HERMES_RXSTAT_MIC
) {
982 struct orinoco_tkip_key
*key
;
983 int key_id
= ((status
& HERMES_RXSTAT_MIC_KEY_ID
) >>
984 HERMES_MIC_KEY_ID_SHIFT
);
985 u8 mic
[MICHAEL_MIC_LEN
];
987 u8
*src
= (fc
& IEEE80211_FCTL_FROMDS
) ?
988 desc
->addr3
: desc
->addr2
;
990 /* Extract Michael MIC from payload */
991 rxmic
= skb
->data
+ skb
->len
- MICHAEL_MIC_LEN
;
993 skb_trim(skb
, skb
->len
- MICHAEL_MIC_LEN
);
994 length
-= MICHAEL_MIC_LEN
;
996 key
= (struct orinoco_tkip_key
*) priv
->keys
[key_id
].key
;
999 printk(KERN_WARNING
"%s: Received encrypted frame from "
1000 "%pM using key %i, but key is not installed\n",
1001 dev
->name
, src
, key_id
);
1005 orinoco_mic(priv
->rx_tfm_mic
, key
->rx_mic
, desc
->addr1
, src
,
1006 0, /* priority or QoS? */
1007 skb
->data
, skb
->len
, &mic
[0]);
1009 if (memcmp(mic
, rxmic
,
1011 union iwreq_data wrqu
;
1012 struct iw_michaelmicfailure wxmic
;
1014 printk(KERN_WARNING
"%s: "
1015 "Invalid Michael MIC in data frame from %pM, "
1017 dev
->name
, src
, key_id
);
1019 /* TODO: update stats */
1021 /* Notify userspace */
1022 memset(&wxmic
, 0, sizeof(wxmic
));
1023 wxmic
.flags
= key_id
& IW_MICFAILURE_KEY_ID
;
1024 wxmic
.flags
|= (desc
->addr1
[0] & 1) ?
1025 IW_MICFAILURE_GROUP
: IW_MICFAILURE_PAIRWISE
;
1026 wxmic
.src_addr
.sa_family
= ARPHRD_ETHER
;
1027 memcpy(wxmic
.src_addr
.sa_data
, src
, ETH_ALEN
);
1029 (void) orinoco_hw_get_tkip_iv(priv
, key_id
,
1032 memset(&wrqu
, 0, sizeof(wrqu
));
1033 wrqu
.data
.length
= sizeof(wxmic
);
1034 wireless_send_event(dev
, IWEVMICHAELMICFAILURE
, &wrqu
,
1041 /* Handle decapsulation
1042 * In most cases, the firmware tell us about SNAP frames.
1043 * For some reason, the SNAP frames sent by LinkSys APs
1044 * are not properly recognised by most firmwares.
1045 * So, check ourselves */
1046 if (length
>= ENCAPS_OVERHEAD
&&
1047 (((status
& HERMES_RXSTAT_MSGTYPE
) == HERMES_RXSTAT_1042
) ||
1048 ((status
& HERMES_RXSTAT_MSGTYPE
) == HERMES_RXSTAT_TUNNEL
) ||
1049 is_ethersnap(skb
->data
))) {
1050 /* These indicate a SNAP within 802.2 LLC within
1051 802.11 frame which we'll need to de-encapsulate to
1052 the original EthernetII frame. */
1053 hdr
= (struct ethhdr
*)skb_push(skb
,
1054 ETH_HLEN
- ENCAPS_OVERHEAD
);
1056 /* 802.3 frame - prepend 802.3 header as is */
1057 hdr
= (struct ethhdr
*)skb_push(skb
, ETH_HLEN
);
1058 hdr
->h_proto
= htons(length
);
1060 memcpy(hdr
->h_dest
, desc
->addr1
, ETH_ALEN
);
1061 if (fc
& IEEE80211_FCTL_FROMDS
)
1062 memcpy(hdr
->h_source
, desc
->addr3
, ETH_ALEN
);
1064 memcpy(hdr
->h_source
, desc
->addr2
, ETH_ALEN
);
1066 skb
->protocol
= eth_type_trans(skb
, dev
);
1067 skb
->ip_summed
= CHECKSUM_NONE
;
1068 if (fc
& IEEE80211_FCTL_TODS
)
1069 skb
->pkt_type
= PACKET_OTHERHOST
;
1071 /* Process the wireless stats if needed */
1072 orinoco_stat_gather(dev
, skb
, desc
);
1074 /* Pass the packet to the networking stack */
1076 stats
->rx_packets
++;
1077 stats
->rx_bytes
+= length
;
1084 stats
->rx_dropped
++;
1087 static void orinoco_rx_isr_tasklet(unsigned long data
)
1089 struct orinoco_private
*priv
= (struct orinoco_private
*) data
;
1090 struct net_device
*dev
= priv
->ndev
;
1091 struct orinoco_rx_data
*rx_data
, *temp
;
1092 struct hermes_rx_descriptor
*desc
;
1093 struct sk_buff
*skb
;
1094 unsigned long flags
;
1096 /* orinoco_rx requires the driver lock, and we also need to
1097 * protect priv->rx_list, so just hold the lock over the
1100 * If orinoco_lock fails, we've unplugged the card. In this
1101 * case just abort. */
1102 if (orinoco_lock(priv
, &flags
) != 0)
1105 /* extract desc and skb from queue */
1106 list_for_each_entry_safe(rx_data
, temp
, &priv
->rx_list
, list
) {
1107 desc
= rx_data
->desc
;
1109 list_del(&rx_data
->list
);
1112 orinoco_rx(dev
, desc
, skb
);
1117 orinoco_unlock(priv
, &flags
);
1120 /********************************************************************/
1121 /* Rx path (info frames) */
1122 /********************************************************************/
1124 static void print_linkstatus(struct net_device
*dev
, u16 status
)
1128 if (suppress_linkstatus
)
1132 case HERMES_LINKSTATUS_NOT_CONNECTED
:
1133 s
= "Not Connected";
1135 case HERMES_LINKSTATUS_CONNECTED
:
1138 case HERMES_LINKSTATUS_DISCONNECTED
:
1141 case HERMES_LINKSTATUS_AP_CHANGE
:
1144 case HERMES_LINKSTATUS_AP_OUT_OF_RANGE
:
1145 s
= "AP Out of Range";
1147 case HERMES_LINKSTATUS_AP_IN_RANGE
:
1150 case HERMES_LINKSTATUS_ASSOC_FAILED
:
1151 s
= "Association Failed";
1157 printk(KERN_DEBUG
"%s: New link status: %s (%04x)\n",
1158 dev
->name
, s
, status
);
1161 /* Search scan results for requested BSSID, join it if found */
1162 static void orinoco_join_ap(struct work_struct
*work
)
1164 struct orinoco_private
*priv
=
1165 container_of(work
, struct orinoco_private
, join_work
);
1166 struct net_device
*dev
= priv
->ndev
;
1167 struct hermes
*hw
= &priv
->hw
;
1169 unsigned long flags
;
1174 const int atom_len
= offsetof(struct prism2_scan_apinfo
, atim
);
1175 struct prism2_scan_apinfo
*atom
= NULL
;
1181 /* Allocate buffer for scan results */
1182 buf
= kmalloc(MAX_SCAN_LEN
, GFP_KERNEL
);
1186 if (orinoco_lock(priv
, &flags
) != 0)
1189 /* Sanity checks in case user changed something in the meantime */
1190 if (!priv
->bssid_fixed
)
1193 if (strlen(priv
->desired_essid
) == 0)
1196 /* Read scan results from the firmware */
1197 err
= hw
->ops
->read_ltv(hw
, USER_BAP
,
1198 HERMES_RID_SCANRESULTSTABLE
,
1199 MAX_SCAN_LEN
, &len
, buf
);
1201 printk(KERN_ERR
"%s: Cannot read scan results\n",
1206 len
= HERMES_RECLEN_TO_BYTES(len
);
1208 /* Go through the scan results looking for the channel of the AP
1209 * we were requested to join */
1210 for (; offset
+ atom_len
<= len
; offset
+= atom_len
) {
1211 atom
= (struct prism2_scan_apinfo
*) (buf
+ offset
);
1212 if (memcmp(&atom
->bssid
, priv
->desired_bssid
, ETH_ALEN
) == 0) {
1219 DEBUG(1, "%s: Requested AP not found in scan results\n",
1224 memcpy(req
.bssid
, priv
->desired_bssid
, ETH_ALEN
);
1225 req
.channel
= atom
->channel
; /* both are little-endian */
1226 err
= HERMES_WRITE_RECORD(hw
, USER_BAP
, HERMES_RID_CNFJOINREQUEST
,
1229 printk(KERN_ERR
"%s: Error issuing join request\n", dev
->name
);
1232 orinoco_unlock(priv
, &flags
);
1238 /* Send new BSSID to userspace */
1239 static void orinoco_send_bssid_wevent(struct orinoco_private
*priv
)
1241 struct net_device
*dev
= priv
->ndev
;
1242 struct hermes
*hw
= &priv
->hw
;
1243 union iwreq_data wrqu
;
1246 err
= hw
->ops
->read_ltv(hw
, USER_BAP
, HERMES_RID_CURRENTBSSID
,
1247 ETH_ALEN
, NULL
, wrqu
.ap_addr
.sa_data
);
1251 wrqu
.ap_addr
.sa_family
= ARPHRD_ETHER
;
1253 /* Send event to user space */
1254 wireless_send_event(dev
, SIOCGIWAP
, &wrqu
, NULL
);
1257 static void orinoco_send_assocreqie_wevent(struct orinoco_private
*priv
)
1259 struct net_device
*dev
= priv
->ndev
;
1260 struct hermes
*hw
= &priv
->hw
;
1261 union iwreq_data wrqu
;
1269 err
= hw
->ops
->read_ltv(hw
, USER_BAP
, HERMES_RID_CURRENT_ASSOC_REQ_INFO
,
1270 sizeof(buf
), NULL
, &buf
);
1274 ie
= orinoco_get_wpa_ie(buf
, sizeof(buf
));
1276 int rem
= sizeof(buf
) - (ie
- &buf
[0]);
1277 wrqu
.data
.length
= ie
[1] + 2;
1278 if (wrqu
.data
.length
> rem
)
1279 wrqu
.data
.length
= rem
;
1281 if (wrqu
.data
.length
)
1282 /* Send event to user space */
1283 wireless_send_event(dev
, IWEVASSOCREQIE
, &wrqu
, ie
);
1287 static void orinoco_send_assocrespie_wevent(struct orinoco_private
*priv
)
1289 struct net_device
*dev
= priv
->ndev
;
1290 struct hermes
*hw
= &priv
->hw
;
1291 union iwreq_data wrqu
;
1293 u8 buf
[88]; /* TODO: verify max size or IW_GENERIC_IE_MAX */
1299 err
= hw
->ops
->read_ltv(hw
, USER_BAP
,
1300 HERMES_RID_CURRENT_ASSOC_RESP_INFO
,
1301 sizeof(buf
), NULL
, &buf
);
1305 ie
= orinoco_get_wpa_ie(buf
, sizeof(buf
));
1307 int rem
= sizeof(buf
) - (ie
- &buf
[0]);
1308 wrqu
.data
.length
= ie
[1] + 2;
1309 if (wrqu
.data
.length
> rem
)
1310 wrqu
.data
.length
= rem
;
1312 if (wrqu
.data
.length
)
1313 /* Send event to user space */
1314 wireless_send_event(dev
, IWEVASSOCRESPIE
, &wrqu
, ie
);
1318 static void orinoco_send_wevents(struct work_struct
*work
)
1320 struct orinoco_private
*priv
=
1321 container_of(work
, struct orinoco_private
, wevent_work
);
1322 unsigned long flags
;
1324 if (orinoco_lock(priv
, &flags
) != 0)
1327 orinoco_send_assocreqie_wevent(priv
);
1328 orinoco_send_assocrespie_wevent(priv
);
1329 orinoco_send_bssid_wevent(priv
);
1331 orinoco_unlock(priv
, &flags
);
1334 static void qbuf_scan(struct orinoco_private
*priv
, void *buf
,
1337 struct orinoco_scan_data
*sd
;
1338 unsigned long flags
;
1340 sd
= kmalloc(sizeof(*sd
), GFP_ATOMIC
);
1345 spin_lock_irqsave(&priv
->scan_lock
, flags
);
1346 list_add_tail(&sd
->list
, &priv
->scan_list
);
1347 spin_unlock_irqrestore(&priv
->scan_lock
, flags
);
1349 schedule_work(&priv
->process_scan
);
1352 static void qabort_scan(struct orinoco_private
*priv
)
1354 struct orinoco_scan_data
*sd
;
1355 unsigned long flags
;
1357 sd
= kmalloc(sizeof(*sd
), GFP_ATOMIC
);
1358 sd
->len
= -1; /* Abort */
1360 spin_lock_irqsave(&priv
->scan_lock
, flags
);
1361 list_add_tail(&sd
->list
, &priv
->scan_list
);
1362 spin_unlock_irqrestore(&priv
->scan_lock
, flags
);
1364 schedule_work(&priv
->process_scan
);
1367 static void orinoco_process_scan_results(struct work_struct
*work
)
1369 struct orinoco_private
*priv
=
1370 container_of(work
, struct orinoco_private
, process_scan
);
1371 struct orinoco_scan_data
*sd
, *temp
;
1372 unsigned long flags
;
1377 spin_lock_irqsave(&priv
->scan_lock
, flags
);
1378 list_for_each_entry_safe(sd
, temp
, &priv
->scan_list
, list
) {
1384 list_del(&sd
->list
);
1385 spin_unlock_irqrestore(&priv
->scan_lock
, flags
);
1389 if (type
== HERMES_INQ_CHANNELINFO
)
1390 orinoco_add_extscan_result(priv
, buf
, len
);
1392 orinoco_add_hostscan_results(priv
, buf
, len
);
1396 /* Either abort or complete the scan */
1397 orinoco_scan_done(priv
, (len
< 0));
1400 spin_lock_irqsave(&priv
->scan_lock
, flags
);
1402 spin_unlock_irqrestore(&priv
->scan_lock
, flags
);
1405 void __orinoco_ev_info(struct net_device
*dev
, struct hermes
*hw
)
1407 struct orinoco_private
*priv
= ndev_priv(dev
);
1416 /* This is an answer to an INQUIRE command that we did earlier,
1417 * or an information "event" generated by the card
1418 * The controller return to us a pseudo frame containing
1419 * the information in question - Jean II */
1420 infofid
= hermes_read_regn(hw
, INFOFID
);
1422 /* Read the info frame header - don't try too hard */
1423 err
= hw
->ops
->bap_pread(hw
, IRQ_BAP
, &info
, sizeof(info
),
1426 printk(KERN_ERR
"%s: error %d reading info frame. "
1427 "Frame dropped.\n", dev
->name
, err
);
1431 len
= HERMES_RECLEN_TO_BYTES(le16_to_cpu(info
.len
));
1432 type
= le16_to_cpu(info
.type
);
1435 case HERMES_INQ_TALLIES
: {
1436 struct hermes_tallies_frame tallies
;
1437 struct iw_statistics
*wstats
= &priv
->wstats
;
1439 if (len
> sizeof(tallies
)) {
1440 printk(KERN_WARNING
"%s: Tallies frame too long (%d bytes)\n",
1442 len
= sizeof(tallies
);
1445 err
= hw
->ops
->bap_pread(hw
, IRQ_BAP
, &tallies
, len
,
1446 infofid
, sizeof(info
));
1450 /* Increment our various counters */
1451 /* wstats->discard.nwid - no wrong BSSID stuff */
1452 wstats
->discard
.code
+=
1453 le16_to_cpu(tallies
.RxWEPUndecryptable
);
1454 if (len
== sizeof(tallies
))
1455 wstats
->discard
.code
+=
1456 le16_to_cpu(tallies
.RxDiscards_WEPICVError
) +
1457 le16_to_cpu(tallies
.RxDiscards_WEPExcluded
);
1458 wstats
->discard
.misc
+=
1459 le16_to_cpu(tallies
.TxDiscardsWrongSA
);
1460 wstats
->discard
.fragment
+=
1461 le16_to_cpu(tallies
.RxMsgInBadMsgFragments
);
1462 wstats
->discard
.retries
+=
1463 le16_to_cpu(tallies
.TxRetryLimitExceeded
);
1464 /* wstats->miss.beacon - no match */
1467 case HERMES_INQ_LINKSTATUS
: {
1468 struct hermes_linkstatus linkstatus
;
1472 if (priv
->iw_mode
== NL80211_IFTYPE_MONITOR
)
1475 if (len
!= sizeof(linkstatus
)) {
1476 printk(KERN_WARNING
"%s: Unexpected size for linkstatus frame (%d bytes)\n",
1481 err
= hw
->ops
->bap_pread(hw
, IRQ_BAP
, &linkstatus
, len
,
1482 infofid
, sizeof(info
));
1485 newstatus
= le16_to_cpu(linkstatus
.linkstatus
);
1487 /* Symbol firmware uses "out of range" to signal that
1488 * the hostscan frame can be requested. */
1489 if (newstatus
== HERMES_LINKSTATUS_AP_OUT_OF_RANGE
&&
1490 priv
->firmware_type
== FIRMWARE_TYPE_SYMBOL
&&
1491 priv
->has_hostscan
&& priv
->scan_request
) {
1492 hermes_inquire(hw
, HERMES_INQ_HOSTSCAN_SYMBOL
);
1496 connected
= (newstatus
== HERMES_LINKSTATUS_CONNECTED
)
1497 || (newstatus
== HERMES_LINKSTATUS_AP_CHANGE
)
1498 || (newstatus
== HERMES_LINKSTATUS_AP_IN_RANGE
);
1501 netif_carrier_on(dev
);
1502 else if (!ignore_disconnect
)
1503 netif_carrier_off(dev
);
1505 if (newstatus
!= priv
->last_linkstatus
) {
1506 priv
->last_linkstatus
= newstatus
;
1507 print_linkstatus(dev
, newstatus
);
1508 /* The info frame contains only one word which is the
1509 * status (see hermes.h). The status is pretty boring
1510 * in itself, that's why we export the new BSSID...
1512 schedule_work(&priv
->wevent_work
);
1516 case HERMES_INQ_SCAN
:
1517 if (!priv
->scan_request
&& priv
->bssid_fixed
&&
1518 priv
->firmware_type
== FIRMWARE_TYPE_INTERSIL
) {
1519 schedule_work(&priv
->join_work
);
1523 case HERMES_INQ_HOSTSCAN
:
1524 case HERMES_INQ_HOSTSCAN_SYMBOL
: {
1525 /* Result of a scanning. Contains information about
1526 * cells in the vicinity - Jean II */
1531 printk(KERN_WARNING
"%s: Scan results too large (%d bytes)\n",
1537 /* Allocate buffer for results */
1538 buf
= kmalloc(len
, GFP_ATOMIC
);
1540 /* No memory, so can't printk()... */
1545 /* Read scan data */
1546 err
= hw
->ops
->bap_pread(hw
, IRQ_BAP
, (void *) buf
, len
,
1547 infofid
, sizeof(info
));
1554 #ifdef ORINOCO_DEBUG
1557 printk(KERN_DEBUG
"Scan result [%02X", buf
[0]);
1558 for (i
= 1; i
< (len
* 2); i
++)
1559 printk(":%02X", buf
[i
]);
1562 #endif /* ORINOCO_DEBUG */
1564 qbuf_scan(priv
, buf
, len
, type
);
1567 case HERMES_INQ_CHANNELINFO
:
1569 struct agere_ext_scan_info
*bss
;
1571 if (!priv
->scan_request
) {
1572 printk(KERN_DEBUG
"%s: Got chaninfo without scan, "
1573 "len=%d\n", dev
->name
, len
);
1577 /* An empty result indicates that the scan is complete */
1579 qbuf_scan(priv
, NULL
, len
, type
);
1584 else if (len
< (offsetof(struct agere_ext_scan_info
,
1586 /* Drop this result now so we don't have to
1587 * keep checking later */
1589 "%s: Ext scan results too short (%d bytes)\n",
1594 bss
= kmalloc(len
, GFP_ATOMIC
);
1598 /* Read scan data */
1599 err
= hw
->ops
->bap_pread(hw
, IRQ_BAP
, (void *) bss
, len
,
1600 infofid
, sizeof(info
));
1604 qbuf_scan(priv
, bss
, len
, type
);
1608 case HERMES_INQ_SEC_STAT_AGERE
:
1609 /* Security status (Agere specific) */
1610 /* Ignore this frame for now */
1611 if (priv
->firmware_type
== FIRMWARE_TYPE_AGERE
)
1615 printk(KERN_DEBUG
"%s: Unknown information frame received: "
1616 "type 0x%04x, length %d\n", dev
->name
, type
, len
);
1617 /* We don't actually do anything about it */
1621 EXPORT_SYMBOL(__orinoco_ev_info
);
1623 static void __orinoco_ev_infdrop(struct net_device
*dev
, struct hermes
*hw
)
1625 if (net_ratelimit())
1626 printk(KERN_DEBUG
"%s: Information frame lost.\n", dev
->name
);
1629 /********************************************************************/
1630 /* Internal hardware control routines */
1631 /********************************************************************/
1633 static int __orinoco_up(struct orinoco_private
*priv
)
1635 struct net_device
*dev
= priv
->ndev
;
1636 struct hermes
*hw
= &priv
->hw
;
1639 netif_carrier_off(dev
); /* just to make sure */
1641 err
= __orinoco_commit(priv
);
1643 printk(KERN_ERR
"%s: Error %d configuring card\n",
1648 /* Fire things up again */
1649 hermes_set_irqmask(hw
, ORINOCO_INTEN
);
1650 err
= hermes_enable_port(hw
, 0);
1652 printk(KERN_ERR
"%s: Error %d enabling MAC port\n",
1657 netif_start_queue(dev
);
1662 static int __orinoco_down(struct orinoco_private
*priv
)
1664 struct net_device
*dev
= priv
->ndev
;
1665 struct hermes
*hw
= &priv
->hw
;
1668 netif_stop_queue(dev
);
1670 if (!priv
->hw_unavailable
) {
1671 if (!priv
->broken_disableport
) {
1672 err
= hermes_disable_port(hw
, 0);
1674 /* Some firmwares (e.g. Intersil 1.3.x) seem
1675 * to have problems disabling the port, oh
1677 printk(KERN_WARNING
"%s: Error %d disabling MAC port\n",
1679 priv
->broken_disableport
= 1;
1682 hermes_set_irqmask(hw
, 0);
1683 hermes_write_regn(hw
, EVACK
, 0xffff);
1686 orinoco_scan_done(priv
, true);
1688 /* firmware will have to reassociate */
1689 netif_carrier_off(dev
);
1690 priv
->last_linkstatus
= 0xffff;
1695 static int orinoco_reinit_firmware(struct orinoco_private
*priv
)
1697 struct hermes
*hw
= &priv
->hw
;
1700 err
= hw
->ops
->init(hw
);
1701 if (priv
->do_fw_download
&& !err
) {
1702 err
= orinoco_download(priv
);
1704 priv
->do_fw_download
= 0;
1707 err
= orinoco_hw_allocate_fid(priv
);
1713 __orinoco_set_multicast_list(struct net_device
*dev
)
1715 struct orinoco_private
*priv
= ndev_priv(dev
);
1717 int promisc
, mc_count
;
1719 /* The Hermes doesn't seem to have an allmulti mode, so we go
1720 * into promiscuous mode and let the upper levels deal. */
1721 if ((dev
->flags
& IFF_PROMISC
) || (dev
->flags
& IFF_ALLMULTI
) ||
1722 (netdev_mc_count(dev
) > MAX_MULTICAST(priv
))) {
1727 mc_count
= netdev_mc_count(dev
);
1730 err
= __orinoco_hw_set_multicast_list(priv
, dev
, mc_count
, promisc
);
1735 /* This must be called from user context, without locks held - use
1736 * schedule_work() */
1737 void orinoco_reset(struct work_struct
*work
)
1739 struct orinoco_private
*priv
=
1740 container_of(work
, struct orinoco_private
, reset_work
);
1741 struct net_device
*dev
= priv
->ndev
;
1742 struct hermes
*hw
= &priv
->hw
;
1744 unsigned long flags
;
1746 if (orinoco_lock(priv
, &flags
) != 0)
1747 /* When the hardware becomes available again, whatever
1748 * detects that is responsible for re-initializing
1749 * it. So no need for anything further */
1752 netif_stop_queue(dev
);
1754 /* Shut off interrupts. Depending on what state the hardware
1755 * is in, this might not work, but we'll try anyway */
1756 hermes_set_irqmask(hw
, 0);
1757 hermes_write_regn(hw
, EVACK
, 0xffff);
1759 priv
->hw_unavailable
++;
1760 priv
->last_linkstatus
= 0xffff; /* firmware will have to reassociate */
1761 netif_carrier_off(dev
);
1763 orinoco_unlock(priv
, &flags
);
1765 /* Scanning support: Notify scan cancellation */
1766 orinoco_scan_done(priv
, true);
1768 if (priv
->hard_reset
) {
1769 err
= (*priv
->hard_reset
)(priv
);
1771 printk(KERN_ERR
"%s: orinoco_reset: Error %d "
1772 "performing hard reset\n", dev
->name
, err
);
1777 err
= orinoco_reinit_firmware(priv
);
1779 printk(KERN_ERR
"%s: orinoco_reset: Error %d re-initializing firmware\n",
1784 /* This has to be called from user context */
1785 orinoco_lock_irq(priv
);
1787 priv
->hw_unavailable
--;
1789 /* priv->open or priv->hw_unavailable might have changed while
1790 * we dropped the lock */
1791 if (priv
->open
&& (!priv
->hw_unavailable
)) {
1792 err
= __orinoco_up(priv
);
1794 printk(KERN_ERR
"%s: orinoco_reset: Error %d reenabling card\n",
1797 dev
->trans_start
= jiffies
;
1800 orinoco_unlock_irq(priv
);
1804 hermes_set_irqmask(hw
, 0);
1805 netif_device_detach(dev
);
1806 printk(KERN_ERR
"%s: Device has been disabled!\n", dev
->name
);
1809 static int __orinoco_commit(struct orinoco_private
*priv
)
1811 struct net_device
*dev
= priv
->ndev
;
1814 /* If we've called commit, we are reconfiguring or bringing the
1815 * interface up. Maintaining countermeasures across this would
1816 * be confusing, so note that we've disabled them. The port will
1817 * be enabled later in orinoco_commit or __orinoco_up. */
1818 priv
->tkip_cm_active
= 0;
1820 err
= orinoco_hw_program_rids(priv
);
1822 /* FIXME: what about netif_tx_lock */
1823 (void) __orinoco_set_multicast_list(dev
);
1828 /* Ensures configuration changes are applied. May result in a reset.
1829 * The caller should hold priv->lock
1831 int orinoco_commit(struct orinoco_private
*priv
)
1833 struct net_device
*dev
= priv
->ndev
;
1834 struct hermes
*hw
= &priv
->hw
;
1837 if (priv
->broken_disableport
) {
1838 schedule_work(&priv
->reset_work
);
1842 err
= hermes_disable_port(hw
, 0);
1844 printk(KERN_WARNING
"%s: Unable to disable port "
1845 "while reconfiguring card\n", dev
->name
);
1846 priv
->broken_disableport
= 1;
1850 err
= __orinoco_commit(priv
);
1852 printk(KERN_WARNING
"%s: Unable to reconfigure card\n",
1857 err
= hermes_enable_port(hw
, 0);
1859 printk(KERN_WARNING
"%s: Unable to enable port while reconfiguring card\n",
1866 printk(KERN_WARNING
"%s: Resetting instead...\n", dev
->name
);
1867 schedule_work(&priv
->reset_work
);
1873 /********************************************************************/
1874 /* Interrupt handler */
1875 /********************************************************************/
1877 static void __orinoco_ev_tick(struct net_device
*dev
, struct hermes
*hw
)
1879 printk(KERN_DEBUG
"%s: TICK\n", dev
->name
);
1882 static void __orinoco_ev_wterr(struct net_device
*dev
, struct hermes
*hw
)
1884 /* This seems to happen a fair bit under load, but ignoring it
1885 seems to work fine...*/
1886 printk(KERN_DEBUG
"%s: MAC controller error (WTERR). Ignoring.\n",
1890 irqreturn_t
orinoco_interrupt(int irq
, void *dev_id
)
1892 struct orinoco_private
*priv
= dev_id
;
1893 struct net_device
*dev
= priv
->ndev
;
1894 struct hermes
*hw
= &priv
->hw
;
1895 int count
= MAX_IRQLOOPS_PER_IRQ
;
1897 /* These are used to detect a runaway interrupt situation.
1899 * If we get more than MAX_IRQLOOPS_PER_JIFFY iterations in a jiffy,
1900 * we panic and shut down the hardware
1902 /* jiffies value the last time we were called */
1903 static int last_irq_jiffy
; /* = 0 */
1904 static int loops_this_jiffy
; /* = 0 */
1905 unsigned long flags
;
1907 if (orinoco_lock(priv
, &flags
) != 0) {
1908 /* If hw is unavailable - we don't know if the irq was
1913 evstat
= hermes_read_regn(hw
, EVSTAT
);
1914 events
= evstat
& hw
->inten
;
1916 orinoco_unlock(priv
, &flags
);
1920 if (jiffies
!= last_irq_jiffy
)
1921 loops_this_jiffy
= 0;
1922 last_irq_jiffy
= jiffies
;
1924 while (events
&& count
--) {
1925 if (++loops_this_jiffy
> MAX_IRQLOOPS_PER_JIFFY
) {
1926 printk(KERN_WARNING
"%s: IRQ handler is looping too "
1927 "much! Resetting.\n", dev
->name
);
1928 /* Disable interrupts for now */
1929 hermes_set_irqmask(hw
, 0);
1930 schedule_work(&priv
->reset_work
);
1934 /* Check the card hasn't been removed */
1935 if (!hermes_present(hw
)) {
1936 DEBUG(0, "orinoco_interrupt(): card removed\n");
1940 if (events
& HERMES_EV_TICK
)
1941 __orinoco_ev_tick(dev
, hw
);
1942 if (events
& HERMES_EV_WTERR
)
1943 __orinoco_ev_wterr(dev
, hw
);
1944 if (events
& HERMES_EV_INFDROP
)
1945 __orinoco_ev_infdrop(dev
, hw
);
1946 if (events
& HERMES_EV_INFO
)
1947 __orinoco_ev_info(dev
, hw
);
1948 if (events
& HERMES_EV_RX
)
1949 __orinoco_ev_rx(dev
, hw
);
1950 if (events
& HERMES_EV_TXEXC
)
1951 __orinoco_ev_txexc(dev
, hw
);
1952 if (events
& HERMES_EV_TX
)
1953 __orinoco_ev_tx(dev
, hw
);
1954 if (events
& HERMES_EV_ALLOC
)
1955 __orinoco_ev_alloc(dev
, hw
);
1957 hermes_write_regn(hw
, EVACK
, evstat
);
1959 evstat
= hermes_read_regn(hw
, EVSTAT
);
1960 events
= evstat
& hw
->inten
;
1963 orinoco_unlock(priv
, &flags
);
1966 EXPORT_SYMBOL(orinoco_interrupt
);
1968 /********************************************************************/
1969 /* Power management */
1970 /********************************************************************/
1971 #if defined(CONFIG_PM_SLEEP) && !defined(CONFIG_HERMES_CACHE_FW_ON_INIT)
1972 static int orinoco_pm_notifier(struct notifier_block
*notifier
,
1973 unsigned long pm_event
,
1976 struct orinoco_private
*priv
= container_of(notifier
,
1977 struct orinoco_private
,
1980 /* All we need to do is cache the firmware before suspend, and
1981 * release it when we come out.
1983 * Only need to do this if we're downloading firmware. */
1984 if (!priv
->do_fw_download
)
1988 case PM_HIBERNATION_PREPARE
:
1989 case PM_SUSPEND_PREPARE
:
1990 orinoco_cache_fw(priv
, 0);
1993 case PM_POST_RESTORE
:
1994 /* Restore from hibernation failed. We need to clean
1995 * up in exactly the same way, so fall through. */
1996 case PM_POST_HIBERNATION
:
1997 case PM_POST_SUSPEND
:
1998 orinoco_uncache_fw(priv
);
2001 case PM_RESTORE_PREPARE
:
2009 static void orinoco_register_pm_notifier(struct orinoco_private
*priv
)
2011 priv
->pm_notifier
.notifier_call
= orinoco_pm_notifier
;
2012 register_pm_notifier(&priv
->pm_notifier
);
2015 static void orinoco_unregister_pm_notifier(struct orinoco_private
*priv
)
2017 unregister_pm_notifier(&priv
->pm_notifier
);
2019 #else /* !PM_SLEEP || HERMES_CACHE_FW_ON_INIT */
2020 #define orinoco_register_pm_notifier(priv) do { } while (0)
2021 #define orinoco_unregister_pm_notifier(priv) do { } while (0)
2024 /********************************************************************/
2025 /* Initialization */
2026 /********************************************************************/
2028 int orinoco_init(struct orinoco_private
*priv
)
2030 struct device
*dev
= priv
->dev
;
2031 struct wiphy
*wiphy
= priv_to_wiphy(priv
);
2032 struct hermes
*hw
= &priv
->hw
;
2035 /* No need to lock, the hw_unavailable flag is already set in
2036 * alloc_orinocodev() */
2037 priv
->nicbuf_size
= IEEE80211_MAX_FRAME_LEN
+ ETH_HLEN
;
2039 /* Initialize the firmware */
2040 err
= hw
->ops
->init(hw
);
2042 dev_err(dev
, "Failed to initialize firmware (err = %d)\n",
2047 err
= determine_fw_capabilities(priv
, wiphy
->fw_version
,
2048 sizeof(wiphy
->fw_version
),
2049 &wiphy
->hw_version
);
2051 dev_err(dev
, "Incompatible firmware, aborting\n");
2055 if (priv
->do_fw_download
) {
2056 #ifdef CONFIG_HERMES_CACHE_FW_ON_INIT
2057 orinoco_cache_fw(priv
, 0);
2060 err
= orinoco_download(priv
);
2062 priv
->do_fw_download
= 0;
2064 /* Check firmware version again */
2065 err
= determine_fw_capabilities(priv
, wiphy
->fw_version
,
2066 sizeof(wiphy
->fw_version
),
2067 &wiphy
->hw_version
);
2069 dev_err(dev
, "Incompatible firmware, aborting\n");
2074 if (priv
->has_port3
)
2075 dev_info(dev
, "Ad-hoc demo mode supported\n");
2077 dev_info(dev
, "IEEE standard IBSS ad-hoc mode supported\n");
2079 dev_info(dev
, "WEP supported, %s-bit key\n",
2080 priv
->has_big_wep
? "104" : "40");
2081 if (priv
->has_wpa
) {
2082 dev_info(dev
, "WPA-PSK supported\n");
2083 if (orinoco_mic_init(priv
)) {
2084 dev_err(dev
, "Failed to setup MIC crypto algorithm. "
2085 "Disabling WPA support\n");
2090 err
= orinoco_hw_read_card_settings(priv
, wiphy
->perm_addr
);
2094 err
= orinoco_hw_allocate_fid(priv
);
2096 dev_err(dev
, "Failed to allocate NIC buffer!\n");
2100 /* Set up the default configuration */
2101 priv
->iw_mode
= NL80211_IFTYPE_STATION
;
2102 /* By default use IEEE/IBSS ad-hoc mode if we have it */
2103 priv
->prefer_port3
= priv
->has_port3
&& (!priv
->has_ibss
);
2104 set_port_type(priv
);
2105 priv
->channel
= 0; /* use firmware default */
2107 priv
->promiscuous
= 0;
2108 priv
->encode_alg
= ORINOCO_ALG_NONE
;
2110 priv
->wpa_enabled
= 0;
2111 priv
->tkip_cm_active
= 0;
2113 priv
->wpa_ie_len
= 0;
2114 priv
->wpa_ie
= NULL
;
2116 if (orinoco_wiphy_register(wiphy
)) {
2121 /* Make the hardware available, as long as it hasn't been
2122 * removed elsewhere (e.g. by PCMCIA hot unplug) */
2123 orinoco_lock_irq(priv
);
2124 priv
->hw_unavailable
--;
2125 orinoco_unlock_irq(priv
);
2127 dev_dbg(dev
, "Ready\n");
2132 EXPORT_SYMBOL(orinoco_init
);
2134 static const struct net_device_ops orinoco_netdev_ops
= {
2135 .ndo_open
= orinoco_open
,
2136 .ndo_stop
= orinoco_stop
,
2137 .ndo_start_xmit
= orinoco_xmit
,
2138 .ndo_set_rx_mode
= orinoco_set_multicast_list
,
2139 .ndo_change_mtu
= orinoco_change_mtu
,
2140 .ndo_set_mac_address
= eth_mac_addr
,
2141 .ndo_validate_addr
= eth_validate_addr
,
2142 .ndo_tx_timeout
= orinoco_tx_timeout
,
2143 .ndo_get_stats
= orinoco_get_stats
,
2146 /* Allocate private data.
2148 * This driver has a number of structures associated with it
2149 * netdev - Net device structure for each network interface
2150 * wiphy - structure associated with wireless phy
2151 * wireless_dev (wdev) - structure for each wireless interface
2152 * hw - structure for hermes chip info
2153 * card - card specific structure for use by the card driver
2154 * (airport, orinoco_cs)
2155 * priv - orinoco private data
2156 * device - generic linux device structure
2158 * +---------+ +---------+
2159 * | wiphy | | netdev |
2160 * | +-------+ | +-------+
2161 * | | priv | | | wdev |
2162 * | | +-----+ +-+-------+
2168 * priv has a link to netdev and device
2169 * wdev has a link to wiphy
2171 struct orinoco_private
2172 *alloc_orinocodev(int sizeof_card
,
2173 struct device
*device
,
2174 int (*hard_reset
)(struct orinoco_private
*),
2175 int (*stop_fw
)(struct orinoco_private
*, int))
2177 struct orinoco_private
*priv
;
2178 struct wiphy
*wiphy
;
2181 * NOTE: We only support a single virtual interface
2182 * but this may change when monitor mode is added
2184 wiphy
= wiphy_new(&orinoco_cfg_ops
,
2185 sizeof(struct orinoco_private
) + sizeof_card
);
2189 priv
= wiphy_priv(wiphy
);
2193 priv
->card
= (void *)((unsigned long)priv
2194 + sizeof(struct orinoco_private
));
2198 orinoco_wiphy_init(wiphy
);
2201 priv
->wireless_data
.spy_data
= &priv
->spy_data
;
2204 /* Set up default callbacks */
2205 priv
->hard_reset
= hard_reset
;
2206 priv
->stop_fw
= stop_fw
;
2208 spin_lock_init(&priv
->lock
);
2210 priv
->hw_unavailable
= 1; /* orinoco_init() must clear this
2211 * before anything else touches the
2213 INIT_WORK(&priv
->reset_work
, orinoco_reset
);
2214 INIT_WORK(&priv
->join_work
, orinoco_join_ap
);
2215 INIT_WORK(&priv
->wevent_work
, orinoco_send_wevents
);
2217 INIT_LIST_HEAD(&priv
->rx_list
);
2218 tasklet_init(&priv
->rx_tasklet
, orinoco_rx_isr_tasklet
,
2219 (unsigned long) priv
);
2221 spin_lock_init(&priv
->scan_lock
);
2222 INIT_LIST_HEAD(&priv
->scan_list
);
2223 INIT_WORK(&priv
->process_scan
, orinoco_process_scan_results
);
2225 priv
->last_linkstatus
= 0xffff;
2227 #if defined(CONFIG_HERMES_CACHE_FW_ON_INIT) || defined(CONFIG_PM_SLEEP)
2228 priv
->cached_pri_fw
= NULL
;
2229 priv
->cached_fw
= NULL
;
2232 /* Register PM notifiers */
2233 orinoco_register_pm_notifier(priv
);
2237 EXPORT_SYMBOL(alloc_orinocodev
);
2239 /* We can only support a single interface. We provide a separate
2240 * function to set it up to distinguish between hardware
2241 * initialisation and interface setup.
2243 * The base_addr and irq parameters are passed on to netdev for use
2246 int orinoco_if_add(struct orinoco_private
*priv
,
2247 unsigned long base_addr
,
2249 const struct net_device_ops
*ops
)
2251 struct wiphy
*wiphy
= priv_to_wiphy(priv
);
2252 struct wireless_dev
*wdev
;
2253 struct net_device
*dev
;
2256 dev
= alloc_etherdev(sizeof(struct wireless_dev
));
2261 /* Initialise wireless_dev */
2262 wdev
= netdev_priv(dev
);
2263 wdev
->wiphy
= wiphy
;
2264 wdev
->iftype
= NL80211_IFTYPE_STATION
;
2266 /* Setup / override net_device fields */
2267 dev
->ieee80211_ptr
= wdev
;
2268 dev
->watchdog_timeo
= HZ
; /* 1 second timeout */
2269 dev
->wireless_handlers
= &orinoco_handler_def
;
2271 dev
->wireless_data
= &priv
->wireless_data
;
2273 /* Default to standard ops if not set */
2275 dev
->netdev_ops
= ops
;
2277 dev
->netdev_ops
= &orinoco_netdev_ops
;
2279 /* we use the default eth_mac_addr for setting the MAC addr */
2281 /* Reserve space in skb for the SNAP header */
2282 dev
->needed_headroom
= ENCAPS_OVERHEAD
;
2284 netif_carrier_off(dev
);
2286 memcpy(dev
->dev_addr
, wiphy
->perm_addr
, ETH_ALEN
);
2287 memcpy(dev
->perm_addr
, wiphy
->perm_addr
, ETH_ALEN
);
2289 dev
->base_addr
= base_addr
;
2292 SET_NETDEV_DEV(dev
, priv
->dev
);
2293 ret
= register_netdev(dev
);
2299 /* Report what we've done */
2300 dev_dbg(priv
->dev
, "Registerred interface %s.\n", dev
->name
);
2308 EXPORT_SYMBOL(orinoco_if_add
);
2310 void orinoco_if_del(struct orinoco_private
*priv
)
2312 struct net_device
*dev
= priv
->ndev
;
2314 unregister_netdev(dev
);
2317 EXPORT_SYMBOL(orinoco_if_del
);
2319 void free_orinocodev(struct orinoco_private
*priv
)
2321 struct wiphy
*wiphy
= priv_to_wiphy(priv
);
2322 struct orinoco_rx_data
*rx_data
, *temp
;
2323 struct orinoco_scan_data
*sd
, *sdtemp
;
2325 wiphy_unregister(wiphy
);
2327 /* If the tasklet is scheduled when we call tasklet_kill it
2328 * will run one final time. However the tasklet will only
2329 * drain priv->rx_list if the hw is still available. */
2330 tasklet_kill(&priv
->rx_tasklet
);
2332 /* Explicitly drain priv->rx_list */
2333 list_for_each_entry_safe(rx_data
, temp
, &priv
->rx_list
, list
) {
2334 list_del(&rx_data
->list
);
2336 dev_kfree_skb(rx_data
->skb
);
2337 kfree(rx_data
->desc
);
2341 cancel_work_sync(&priv
->process_scan
);
2342 /* Explicitly drain priv->scan_list */
2343 list_for_each_entry_safe(sd
, sdtemp
, &priv
->scan_list
, list
) {
2344 list_del(&sd
->list
);
2346 if ((sd
->len
> 0) && sd
->buf
)
2351 orinoco_unregister_pm_notifier(priv
);
2352 orinoco_uncache_fw(priv
);
2354 priv
->wpa_ie_len
= 0;
2355 kfree(priv
->wpa_ie
);
2356 orinoco_mic_free(priv
);
2359 EXPORT_SYMBOL(free_orinocodev
);
2361 int orinoco_up(struct orinoco_private
*priv
)
2363 struct net_device
*dev
= priv
->ndev
;
2364 unsigned long flags
;
2367 priv
->hw
.ops
->lock_irqsave(&priv
->lock
, &flags
);
2369 err
= orinoco_reinit_firmware(priv
);
2371 printk(KERN_ERR
"%s: Error %d re-initializing firmware\n",
2376 netif_device_attach(dev
);
2377 priv
->hw_unavailable
--;
2379 if (priv
->open
&& !priv
->hw_unavailable
) {
2380 err
= __orinoco_up(priv
);
2382 printk(KERN_ERR
"%s: Error %d restarting card\n",
2387 priv
->hw
.ops
->unlock_irqrestore(&priv
->lock
, &flags
);
2391 EXPORT_SYMBOL(orinoco_up
);
2393 void orinoco_down(struct orinoco_private
*priv
)
2395 struct net_device
*dev
= priv
->ndev
;
2396 unsigned long flags
;
2399 priv
->hw
.ops
->lock_irqsave(&priv
->lock
, &flags
);
2400 err
= __orinoco_down(priv
);
2402 printk(KERN_WARNING
"%s: Error %d downing interface\n",
2405 netif_device_detach(dev
);
2406 priv
->hw_unavailable
++;
2407 priv
->hw
.ops
->unlock_irqrestore(&priv
->lock
, &flags
);
2409 EXPORT_SYMBOL(orinoco_down
);
2411 /********************************************************************/
2412 /* Module initialization */
2413 /********************************************************************/
2415 /* Can't be declared "const" or the whole __initdata section will
2417 static char version
[] __initdata
= DRIVER_NAME
" " DRIVER_VERSION
2418 " (David Gibson <hermes@gibson.dropbear.id.au>, "
2419 "Pavel Roskin <proski@gnu.org>, et al)";
2421 static int __init
init_orinoco(void)
2423 printk(KERN_DEBUG
"%s\n", version
);
2427 static void __exit
exit_orinoco(void)
2431 module_init(init_orinoco
);
2432 module_exit(exit_orinoco
);