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[PATCH] W1: w1_netlink: New init/fini netlink callbacks.
[linux-2.6/verdex.git] / drivers / net / wireless / orinoco.c
blob8de49fe57233504ffdbf62cf310a9c34c22b286e
1 /* orinoco.c - (formerly known as dldwd_cs.c and orinoco_cs.c)
2 *
3 * A driver for Hermes or Prism 2 chipset based PCMCIA wireless
4 * adaptors, with Lucent/Agere, Intersil or Symbol firmware.
5 *
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>
9 *
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
15 *
16 * Based on dummy_cs.c 1.27 2000/06/12 21:27:25
17 *
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/
21 *
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/
26 *
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.
31 *
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
35 * Reserved.
36 *
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. */
47
48 /*
49 * TODO
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.
57 */
58
59 /* Locking and synchronization:
60 *
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.
66 *
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).
75 */
76
77 #define DRIVER_NAME "orinoco"
78
79 #include <linux/config.h>
80
81 #include <linux/module.h>
82 #include <linux/kernel.h>
83 #include <linux/init.h>
84 #include <linux/ptrace.h>
85 #include <linux/slab.h>
86 #include <linux/string.h>
87 #include <linux/timer.h>
88 #include <linux/ioport.h>
89 #include <linux/netdevice.h>
90 #include <linux/if_arp.h>
91 #include <linux/etherdevice.h>
92 #include <linux/ethtool.h>
93 #include <linux/wireless.h>
94 #include <net/iw_handler.h>
95 #include <net/ieee80211.h>
96
97 #include <net/ieee80211.h>
98
99 #include <asm/uaccess.h>
100 #include <asm/io.h>
101 #include <asm/system.h>
102
103 #include "hermes.h"
104 #include "hermes_rid.h"
105 #include "orinoco.h"
106
107 /********************************************************************/
108 /* Module information */
109 /********************************************************************/
110
111 MODULE_AUTHOR("Pavel Roskin <proski@gnu.org> & David Gibson <hermes@gibson.dropbear.id.au>");
112 MODULE_DESCRIPTION("Driver for Lucent Orinoco, Prism II based and similar wireless cards");
113 MODULE_LICENSE("Dual MPL/GPL");
114
115 /* Level of debugging. Used in the macros in orinoco.h */
116 #ifdef ORINOCO_DEBUG
117 int orinoco_debug = ORINOCO_DEBUG;
118 module_param(orinoco_debug, int, 0644);
119 MODULE_PARM_DESC(orinoco_debug, "Debug level");
120 EXPORT_SYMBOL(orinoco_debug);
121 #endif
122
123 static int suppress_linkstatus; /* = 0 */
124 module_param(suppress_linkstatus, bool, 0644);
125 MODULE_PARM_DESC(suppress_linkstatus, "Don't log link status changes");
126 static int ignore_disconnect; /* = 0 */
127 module_param(ignore_disconnect, int, 0644);
128 MODULE_PARM_DESC(ignore_disconnect, "Don't report lost link to the network layer");
129
130 static int force_monitor; /* = 0 */
131 module_param(force_monitor, int, 0644);
132 MODULE_PARM_DESC(force_monitor, "Allow monitor mode for all firmware versions");
133
134 /********************************************************************/
135 /* Compile time configuration and compatibility stuff */
136 /********************************************************************/
137
138 /* We do this this way to avoid ifdefs in the actual code */
139 #ifdef WIRELESS_SPY
140 #define SPY_NUMBER(priv) (priv->spy_number)
141 #else
142 #define SPY_NUMBER(priv) 0
143 #endif /* WIRELESS_SPY */
144
145 /********************************************************************/
146 /* Internal constants */
147 /********************************************************************/
148
149 /* 802.2 LLC/SNAP header used for Ethernet encapsulation over 802.11 */
150 static const u8 encaps_hdr[] = {0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00};
151 #define ENCAPS_OVERHEAD (sizeof(encaps_hdr) + 2)
152
153 #define ORINOCO_MIN_MTU 256
154 #define ORINOCO_MAX_MTU (IEEE80211_DATA_LEN - ENCAPS_OVERHEAD)
155
156 #define SYMBOL_MAX_VER_LEN (14)
157 #define USER_BAP 0
158 #define IRQ_BAP 1
159 #define MAX_IRQLOOPS_PER_IRQ 10
160 #define MAX_IRQLOOPS_PER_JIFFY (20000/HZ) /* Based on a guestimate of
161 * how many events the
162 * device could
163 * legitimately generate */
164 #define SMALL_KEY_SIZE 5
165 #define LARGE_KEY_SIZE 13
166 #define TX_NICBUF_SIZE_BUG 1585 /* Bug in Symbol firmware */
167
168 #define DUMMY_FID 0xFFFF
169
170 /*#define MAX_MULTICAST(priv) (priv->firmware_type == FIRMWARE_TYPE_AGERE ? \
171 HERMES_MAX_MULTICAST : 0)*/
172 #define MAX_MULTICAST(priv) (HERMES_MAX_MULTICAST)
173
174 #define ORINOCO_INTEN (HERMES_EV_RX | HERMES_EV_ALLOC \
175 | HERMES_EV_TX | HERMES_EV_TXEXC \
176 | HERMES_EV_WTERR | HERMES_EV_INFO \
177 | HERMES_EV_INFDROP )
178
179 #define MAX_RID_LEN 1024
180
181 static const struct iw_handler_def orinoco_handler_def;
182 static struct ethtool_ops orinoco_ethtool_ops;
183
184 /********************************************************************/
185 /* Data tables */
186 /********************************************************************/
187
188 /* The frequency of each channel in MHz */
189 static const long channel_frequency[] = {
190 2412, 2417, 2422, 2427, 2432, 2437, 2442,
191 2447, 2452, 2457, 2462, 2467, 2472, 2484
192 };
193 #define NUM_CHANNELS ARRAY_SIZE(channel_frequency)
194
195 /* This tables gives the actual meanings of the bitrate IDs returned
196 * by the firmware. */
197 static struct {
198 int bitrate; /* in 100s of kilobits */
199 int automatic;
200 u16 agere_txratectrl;
201 u16 intersil_txratectrl;
202 } bitrate_table[] = {
203 {110, 1, 3, 15}, /* Entry 0 is the default */
204 {10, 0, 1, 1},
205 {10, 1, 1, 1},
206 {20, 0, 2, 2},
207 {20, 1, 6, 3},
208 {55, 0, 4, 4},
209 {55, 1, 7, 7},
210 {110, 0, 5, 8},
211 };
212 #define BITRATE_TABLE_SIZE ARRAY_SIZE(bitrate_table)
213
214 /********************************************************************/
215 /* Data types */
216 /********************************************************************/
217
218 /* Used in Event handling.
219 * We avoid nested structres as they break on ARM -- Moustafa */
220 struct hermes_tx_descriptor_802_11 {
221 /* hermes_tx_descriptor */
222 u16 status;
223 u16 reserved1;
224 u16 reserved2;
225 u32 sw_support;
226 u8 retry_count;
227 u8 tx_rate;
228 u16 tx_control;
229
230 /* ieee802_11_hdr */
231 u16 frame_ctl;
232 u16 duration_id;
233 u8 addr1[ETH_ALEN];
234 u8 addr2[ETH_ALEN];
235 u8 addr3[ETH_ALEN];
236 u16 seq_ctl;
237 u8 addr4[ETH_ALEN];
238 u16 data_len;
239
240 /* ethhdr */
241 unsigned char h_dest[ETH_ALEN]; /* destination eth addr */
242 unsigned char h_source[ETH_ALEN]; /* source ether addr */
243 unsigned short h_proto; /* packet type ID field */
244
245 /* p8022_hdr */
246 u8 dsap;
247 u8 ssap;
248 u8 ctrl;
249 u8 oui[3];
250
251 u16 ethertype;
252 } __attribute__ ((packed));
253
254 /* Rx frame header except compatibility 802.3 header */
255 struct hermes_rx_descriptor {
256 /* Control */
257 u16 status;
258 u32 time;
259 u8 silence;
260 u8 signal;
261 u8 rate;
262 u8 rxflow;
263 u32 reserved;
264
265 /* 802.11 header */
266 u16 frame_ctl;
267 u16 duration_id;
268 u8 addr1[ETH_ALEN];
269 u8 addr2[ETH_ALEN];
270 u8 addr3[ETH_ALEN];
271 u16 seq_ctl;
272 u8 addr4[ETH_ALEN];
273
274 /* Data length */
275 u16 data_len;
276 } __attribute__ ((packed));
277
278 /********************************************************************/
279 /* Function prototypes */
280 /********************************************************************/
281
282 static int __orinoco_program_rids(struct net_device *dev);
283 static void __orinoco_set_multicast_list(struct net_device *dev);
284
285 /********************************************************************/
286 /* Internal helper functions */
287 /********************************************************************/
288
289 static inline void set_port_type(struct orinoco_private *priv)
290 {
291 switch (priv->iw_mode) {
292 case IW_MODE_INFRA:
293 priv->port_type = 1;
294 priv->createibss = 0;
295 break;
296 case IW_MODE_ADHOC:
297 if (priv->prefer_port3) {
298 priv->port_type = 3;
299 priv->createibss = 0;
300 } else {
301 priv->port_type = priv->ibss_port;
302 priv->createibss = 1;
303 }
304 break;
305 case IW_MODE_MONITOR:
306 priv->port_type = 3;
307 priv->createibss = 0;
308 break;
309 default:
310 printk(KERN_ERR "%s: Invalid priv->iw_mode in set_port_type()\n",
311 priv->ndev->name);
312 }
313 }
314
315 /********************************************************************/
316 /* Device methods */
317 /********************************************************************/
318
319 static int orinoco_open(struct net_device *dev)
320 {
321 struct orinoco_private *priv = netdev_priv(dev);
322 unsigned long flags;
323 int err;
324
325 if (orinoco_lock(priv, &flags) != 0)
326 return -EBUSY;
327
328 err = __orinoco_up(dev);
329
330 if (! err)
331 priv->open = 1;
332
333 orinoco_unlock(priv, &flags);
334
335 return err;
336 }
337
338 static int orinoco_stop(struct net_device *dev)
339 {
340 struct orinoco_private *priv = netdev_priv(dev);
341 int err = 0;
342
343 /* We mustn't use orinoco_lock() here, because we need to be
344 able to close the interface even if hw_unavailable is set
345 (e.g. as we're released after a PC Card removal) */
346 spin_lock_irq(&priv->lock);
347
348 priv->open = 0;
349
350 err = __orinoco_down(dev);
351
352 spin_unlock_irq(&priv->lock);
353
354 return err;
355 }
356
357 static struct net_device_stats *orinoco_get_stats(struct net_device *dev)
358 {
359 struct orinoco_private *priv = netdev_priv(dev);
360
361 return &priv->stats;
362 }
363
364 static struct iw_statistics *orinoco_get_wireless_stats(struct net_device *dev)
365 {
366 struct orinoco_private *priv = netdev_priv(dev);
367 hermes_t *hw = &priv->hw;
368 struct iw_statistics *wstats = &priv->wstats;
369 int err;
370 unsigned long flags;
371
372 if (! netif_device_present(dev)) {
373 printk(KERN_WARNING "%s: get_wireless_stats() called while device not present\n",
374 dev->name);
375 return NULL; /* FIXME: Can we do better than this? */
376 }
377
378 /* If busy, return the old stats. Returning NULL may cause
379 * the interface to disappear from /proc/net/wireless */
380 if (orinoco_lock(priv, &flags) != 0)
381 return wstats;
382
383 /* We can't really wait for the tallies inquiry command to
384 * complete, so we just use the previous results and trigger
385 * a new tallies inquiry command for next time - Jean II */
386 /* FIXME: Really we should wait for the inquiry to come back -
387 * as it is the stats we give don't make a whole lot of sense.
388 * Unfortunately, it's not clear how to do that within the
389 * wireless extensions framework: I think we're in user
390 * context, but a lock seems to be held by the time we get in
391 * here so we're not safe to sleep here. */
392 hermes_inquire(hw, HERMES_INQ_TALLIES);
393
394 if (priv->iw_mode == IW_MODE_ADHOC) {
395 memset(&wstats->qual, 0, sizeof(wstats->qual));
396 /* If a spy address is defined, we report stats of the
397 * first spy address - Jean II */
398 if (SPY_NUMBER(priv)) {
399 wstats->qual.qual = priv->spy_stat[0].qual;
400 wstats->qual.level = priv->spy_stat[0].level;
401 wstats->qual.noise = priv->spy_stat[0].noise;
402 wstats->qual.updated = priv->spy_stat[0].updated;
403 }
404 } else {
405 struct {
406 u16 qual, signal, noise;
407 } __attribute__ ((packed)) cq;
408
409 err = HERMES_READ_RECORD(hw, USER_BAP,
410 HERMES_RID_COMMSQUALITY, &cq);
411
412 if (!err) {
413 wstats->qual.qual = (int)le16_to_cpu(cq.qual);
414 wstats->qual.level = (int)le16_to_cpu(cq.signal) - 0x95;
415 wstats->qual.noise = (int)le16_to_cpu(cq.noise) - 0x95;
416 wstats->qual.updated = 7;
417 }
418 }
419
420 orinoco_unlock(priv, &flags);
421 return wstats;
422 }
423
424 static void orinoco_set_multicast_list(struct net_device *dev)
425 {
426 struct orinoco_private *priv = netdev_priv(dev);
427 unsigned long flags;
428
429 if (orinoco_lock(priv, &flags) != 0) {
430 printk(KERN_DEBUG "%s: orinoco_set_multicast_list() "
431 "called when hw_unavailable\n", dev->name);
432 return;
433 }
434
435 __orinoco_set_multicast_list(dev);
436 orinoco_unlock(priv, &flags);
437 }
438
439 static int orinoco_change_mtu(struct net_device *dev, int new_mtu)
440 {
441 struct orinoco_private *priv = netdev_priv(dev);
442
443 if ( (new_mtu < ORINOCO_MIN_MTU) || (new_mtu > ORINOCO_MAX_MTU) )
444 return -EINVAL;
445
446 if ( (new_mtu + ENCAPS_OVERHEAD + IEEE80211_HLEN) >
447 (priv->nicbuf_size - ETH_HLEN) )
448 return -EINVAL;
449
450 dev->mtu = new_mtu;
451
452 return 0;
453 }
454
455 /********************************************************************/
456 /* Tx path */
457 /********************************************************************/
458
459 static int orinoco_xmit(struct sk_buff *skb, struct net_device *dev)
460 {
461 struct orinoco_private *priv = netdev_priv(dev);
462 struct net_device_stats *stats = &priv->stats;
463 hermes_t *hw = &priv->hw;
464 int err = 0;
465 u16 txfid = priv->txfid;
466 char *p;
467 struct ethhdr *eh;
468 int len, data_len, data_off;
469 struct hermes_tx_descriptor desc;
470 unsigned long flags;
471
472 TRACE_ENTER(dev->name);
473
474 if (! netif_running(dev)) {
475 printk(KERN_ERR "%s: Tx on stopped device!\n",
476 dev->name);
477 TRACE_EXIT(dev->name);
478 return 1;
479 }
480
481 if (netif_queue_stopped(dev)) {
482 printk(KERN_DEBUG "%s: Tx while transmitter busy!\n",
483 dev->name);
484 TRACE_EXIT(dev->name);
485 return 1;
486 }
487
488 if (orinoco_lock(priv, &flags) != 0) {
489 printk(KERN_ERR "%s: orinoco_xmit() called while hw_unavailable\n",
490 dev->name);
491 TRACE_EXIT(dev->name);
492 return 1;
493 }
494
495 if (! netif_carrier_ok(dev) || (priv->iw_mode == IW_MODE_MONITOR)) {
496 /* Oops, the firmware hasn't established a connection,
497 silently drop the packet (this seems to be the
498 safest approach). */
499 stats->tx_errors++;
500 orinoco_unlock(priv, &flags);
501 dev_kfree_skb(skb);
502 TRACE_EXIT(dev->name);
503 return 0;
504 }
505
506 /* Length of the packet body */
507 /* FIXME: what if the skb is smaller than this? */
508 len = max_t(int,skb->len - ETH_HLEN, ETH_ZLEN - ETH_HLEN);
509
510 eh = (struct ethhdr *)skb->data;
511
512 memset(&desc, 0, sizeof(desc));
513 desc.tx_control = cpu_to_le16(HERMES_TXCTRL_TX_OK | HERMES_TXCTRL_TX_EX);
514 err = hermes_bap_pwrite(hw, USER_BAP, &desc, sizeof(desc), txfid, 0);
515 if (err) {
516 if (net_ratelimit())
517 printk(KERN_ERR "%s: Error %d writing Tx descriptor "
518 "to BAP\n", dev->name, err);
519 stats->tx_errors++;
520 goto fail;
521 }
522
523 /* Clear the 802.11 header and data length fields - some
524 * firmwares (e.g. Lucent/Agere 8.xx) appear to get confused
525 * if this isn't done. */
526 hermes_clear_words(hw, HERMES_DATA0,
527 HERMES_802_3_OFFSET - HERMES_802_11_OFFSET);
528
529 /* Encapsulate Ethernet-II frames */
530 if (ntohs(eh->h_proto) > ETH_DATA_LEN) { /* Ethernet-II frame */
531 struct header_struct hdr;
532 data_len = len;
533 data_off = HERMES_802_3_OFFSET + sizeof(hdr);
534 p = skb->data + ETH_HLEN;
535
536 /* 802.3 header */
537 memcpy(hdr.dest, eh->h_dest, ETH_ALEN);
538 memcpy(hdr.src, eh->h_source, ETH_ALEN);
539 hdr.len = htons(data_len + ENCAPS_OVERHEAD);
540
541 /* 802.2 header */
542 memcpy(&hdr.dsap, &encaps_hdr, sizeof(encaps_hdr));
543
544 hdr.ethertype = eh->h_proto;
545 err = hermes_bap_pwrite(hw, USER_BAP, &hdr, sizeof(hdr),
546 txfid, HERMES_802_3_OFFSET);
547 if (err) {
548 if (net_ratelimit())
549 printk(KERN_ERR "%s: Error %d writing packet "
550 "header to BAP\n", dev->name, err);
551 stats->tx_errors++;
552 goto fail;
553 }
554 } else { /* IEEE 802.3 frame */
555 data_len = len + ETH_HLEN;
556 data_off = HERMES_802_3_OFFSET;
557 p = skb->data;
558 }
559
560 /* Round up for odd length packets */
561 err = hermes_bap_pwrite(hw, USER_BAP, p, ALIGN(data_len, 2),
562 txfid, data_off);
563 if (err) {
564 printk(KERN_ERR "%s: Error %d writing packet to BAP\n",
565 dev->name, err);
566 stats->tx_errors++;
567 goto fail;
568 }
569
570 /* Finally, we actually initiate the send */
571 netif_stop_queue(dev);
572
573 err = hermes_docmd_wait(hw, HERMES_CMD_TX | HERMES_CMD_RECL,
574 txfid, NULL);
575 if (err) {
576 netif_start_queue(dev);
577 printk(KERN_ERR "%s: Error %d transmitting packet\n",
578 dev->name, err);
579 stats->tx_errors++;
580 goto fail;
581 }
582
583 dev->trans_start = jiffies;
584 stats->tx_bytes += data_off + data_len;
585
586 orinoco_unlock(priv, &flags);
587
588 dev_kfree_skb(skb);
589
590 TRACE_EXIT(dev->name);
591
592 return 0;
593 fail:
594 TRACE_EXIT(dev->name);
595
596 orinoco_unlock(priv, &flags);
597 return err;
598 }
599
600 static void __orinoco_ev_alloc(struct net_device *dev, hermes_t *hw)
601 {
602 struct orinoco_private *priv = netdev_priv(dev);
603 u16 fid = hermes_read_regn(hw, ALLOCFID);
604
605 if (fid != priv->txfid) {
606 if (fid != DUMMY_FID)
607 printk(KERN_WARNING "%s: Allocate event on unexpected fid (%04X)\n",
608 dev->name, fid);
609 return;
610 }
611
612 hermes_write_regn(hw, ALLOCFID, DUMMY_FID);
613 }
614
615 static void __orinoco_ev_tx(struct net_device *dev, hermes_t *hw)
616 {
617 struct orinoco_private *priv = netdev_priv(dev);
618 struct net_device_stats *stats = &priv->stats;
619
620 stats->tx_packets++;
621
622 netif_wake_queue(dev);
623
624 hermes_write_regn(hw, TXCOMPLFID, DUMMY_FID);
625 }
626
627 static void __orinoco_ev_txexc(struct net_device *dev, hermes_t *hw)
628 {
629 struct orinoco_private *priv = netdev_priv(dev);
630 struct net_device_stats *stats = &priv->stats;
631 u16 fid = hermes_read_regn(hw, TXCOMPLFID);
632 struct hermes_tx_descriptor_802_11 hdr;
633 int err = 0;
634
635 if (fid == DUMMY_FID)
636 return; /* Nothing's really happened */
637
638 /* Read the frame header */
639 err = hermes_bap_pread(hw, IRQ_BAP, &hdr,
640 sizeof(struct hermes_tx_descriptor) +
641 sizeof(struct ieee80211_hdr),
642 fid, 0);
643
644 hermes_write_regn(hw, TXCOMPLFID, DUMMY_FID);
645 stats->tx_errors++;
646
647 if (err) {
648 printk(KERN_WARNING "%s: Unable to read descriptor on Tx error "
649 "(FID=%04X error %d)\n",
650 dev->name, fid, err);
651 return;
652 }
653
654 DEBUG(1, "%s: Tx error, err %d (FID=%04X)\n", dev->name,
655 err, fid);
656
657 /* We produce a TXDROP event only for retry or lifetime
658 * exceeded, because that's the only status that really mean
659 * that this particular node went away.
660 * Other errors means that *we* screwed up. - Jean II */
661 hdr.status = le16_to_cpu(hdr.status);
662 if (hdr.status & (HERMES_TXSTAT_RETRYERR | HERMES_TXSTAT_AGEDERR)) {
663 union iwreq_data wrqu;
664
665 /* Copy 802.11 dest address.
666 * We use the 802.11 header because the frame may
667 * not be 802.3 or may be mangled...
668 * In Ad-Hoc mode, it will be the node address.
669 * In managed mode, it will be most likely the AP addr
670 * User space will figure out how to convert it to
671 * whatever it needs (IP address or else).
672 * - Jean II */
673 memcpy(wrqu.addr.sa_data, hdr.addr1, ETH_ALEN);
674 wrqu.addr.sa_family = ARPHRD_ETHER;
675
676 /* Send event to user space */
677 wireless_send_event(dev, IWEVTXDROP, &wrqu, NULL);
678 }
679
680 netif_wake_queue(dev);
681 }
682
683 static void orinoco_tx_timeout(struct net_device *dev)
684 {
685 struct orinoco_private *priv = netdev_priv(dev);
686 struct net_device_stats *stats = &priv->stats;
687 struct hermes *hw = &priv->hw;
688
689 printk(KERN_WARNING "%s: Tx timeout! "
690 "ALLOCFID=%04x, TXCOMPLFID=%04x, EVSTAT=%04x\n",
691 dev->name, hermes_read_regn(hw, ALLOCFID),
692 hermes_read_regn(hw, TXCOMPLFID), hermes_read_regn(hw, EVSTAT));
693
694 stats->tx_errors++;
695
696 schedule_work(&priv->reset_work);
697 }
698
699 /********************************************************************/
700 /* Rx path (data frames) */
701 /********************************************************************/
702
703 /* Does the frame have a SNAP header indicating it should be
704 * de-encapsulated to Ethernet-II? */
705 static inline int is_ethersnap(void *_hdr)
706 {
707 u8 *hdr = _hdr;
708
709 /* We de-encapsulate all packets which, a) have SNAP headers
710 * (i.e. SSAP=DSAP=0xaa and CTRL=0x3 in the 802.2 LLC header
711 * and where b) the OUI of the SNAP header is 00:00:00 or
712 * 00:00:f8 - we need both because different APs appear to use
713 * different OUIs for some reason */
714 return (memcmp(hdr, &encaps_hdr, 5) == 0)
715 && ( (hdr[5] == 0x00) || (hdr[5] == 0xf8) );
716 }
717
718 static inline void orinoco_spy_gather(struct net_device *dev, u_char *mac,
719 int level, int noise)
720 {
721 struct orinoco_private *priv = netdev_priv(dev);
722 int i;
723
724 /* Gather wireless spy statistics: for each packet, compare the
725 * source address with out list, and if match, get the stats... */
726 for (i = 0; i < priv->spy_number; i++)
727 if (!memcmp(mac, priv->spy_address[i], ETH_ALEN)) {
728 priv->spy_stat[i].level = level - 0x95;
729 priv->spy_stat[i].noise = noise - 0x95;
730 priv->spy_stat[i].qual = (level > noise) ? (level - noise) : 0;
731 priv->spy_stat[i].updated = 7;
732 }
733 }
734
735 static void orinoco_stat_gather(struct net_device *dev,
736 struct sk_buff *skb,
737 struct hermes_rx_descriptor *desc)
738 {
739 struct orinoco_private *priv = netdev_priv(dev);
740
741 /* Using spy support with lots of Rx packets, like in an
742 * infrastructure (AP), will really slow down everything, because
743 * the MAC address must be compared to each entry of the spy list.
744 * If the user really asks for it (set some address in the
745 * spy list), we do it, but he will pay the price.
746 * Note that to get here, you need both WIRELESS_SPY
747 * compiled in AND some addresses in the list !!!
748 */
749 /* Note : gcc will optimise the whole section away if
750 * WIRELESS_SPY is not defined... - Jean II */
751 if (SPY_NUMBER(priv)) {
752 orinoco_spy_gather(dev, skb->mac.raw + ETH_ALEN,
753 desc->signal, desc->silence);
754 }
755 }
756
757 /*
758 * orinoco_rx_monitor - handle received monitor frames.
759 *
760 * Arguments:
761 * dev network device
762 * rxfid received FID
763 * desc rx descriptor of the frame
764 *
765 * Call context: interrupt
766 */
767 static void orinoco_rx_monitor(struct net_device *dev, u16 rxfid,
768 struct hermes_rx_descriptor *desc)
769 {
770 u32 hdrlen = 30; /* return full header by default */
771 u32 datalen = 0;
772 u16 fc;
773 int err;
774 int len;
775 struct sk_buff *skb;
776 struct orinoco_private *priv = netdev_priv(dev);
777 struct net_device_stats *stats = &priv->stats;
778 hermes_t *hw = &priv->hw;
779
780 len = le16_to_cpu(desc->data_len);
781
782 /* Determine the size of the header and the data */
783 fc = le16_to_cpu(desc->frame_ctl);
784 switch (fc & IEEE80211_FCTL_FTYPE) {
785 case IEEE80211_FTYPE_DATA:
786 if ((fc & IEEE80211_FCTL_TODS)
787 && (fc & IEEE80211_FCTL_FROMDS))
788 hdrlen = 30;
789 else
790 hdrlen = 24;
791 datalen = len;
792 break;
793 case IEEE80211_FTYPE_MGMT:
794 hdrlen = 24;
795 datalen = len;
796 break;
797 case IEEE80211_FTYPE_CTL:
798 switch (fc & IEEE80211_FCTL_STYPE) {
799 case IEEE80211_STYPE_PSPOLL:
800 case IEEE80211_STYPE_RTS:
801 case IEEE80211_STYPE_CFEND:
802 case IEEE80211_STYPE_CFENDACK:
803 hdrlen = 16;
804 break;
805 case IEEE80211_STYPE_CTS:
806 case IEEE80211_STYPE_ACK:
807 hdrlen = 10;
808 break;
809 }
810 break;
811 default:
812 /* Unknown frame type */
813 break;
814 }
815
816 /* sanity check the length */
817 if (datalen > IEEE80211_DATA_LEN + 12) {
818 printk(KERN_DEBUG "%s: oversized monitor frame, "
819 "data length = %d\n", dev->name, datalen);
820 err = -EIO;
821 stats->rx_length_errors++;
822 goto update_stats;
823 }
824
825 skb = dev_alloc_skb(hdrlen + datalen);
826 if (!skb) {
827 printk(KERN_WARNING "%s: Cannot allocate skb for monitor frame\n",
828 dev->name);
829 err = -ENOMEM;
830 goto drop;
831 }
832
833 /* Copy the 802.11 header to the skb */
834 memcpy(skb_put(skb, hdrlen), &(desc->frame_ctl), hdrlen);
835 skb->mac.raw = skb->data;
836
837 /* If any, copy the data from the card to the skb */
838 if (datalen > 0) {
839 err = hermes_bap_pread(hw, IRQ_BAP, skb_put(skb, datalen),
840 ALIGN(datalen, 2), rxfid,
841 HERMES_802_2_OFFSET);
842 if (err) {
843 printk(KERN_ERR "%s: error %d reading monitor frame\n",
844 dev->name, err);
845 goto drop;
846 }
847 }
848
849 skb->dev = dev;
850 skb->ip_summed = CHECKSUM_NONE;
851 skb->pkt_type = PACKET_OTHERHOST;
852 skb->protocol = __constant_htons(ETH_P_802_2);
853
854 dev->last_rx = jiffies;
855 stats->rx_packets++;
856 stats->rx_bytes += skb->len;
857
858 netif_rx(skb);
859 return;
860
861 drop:
862 dev_kfree_skb_irq(skb);
863 update_stats:
864 stats->rx_errors++;
865 stats->rx_dropped++;
866 }
867
868 static void __orinoco_ev_rx(struct net_device *dev, hermes_t *hw)
869 {
870 struct orinoco_private *priv = netdev_priv(dev);
871 struct net_device_stats *stats = &priv->stats;
872 struct iw_statistics *wstats = &priv->wstats;
873 struct sk_buff *skb = NULL;
874 u16 rxfid, status, fc;
875 int length;
876 struct hermes_rx_descriptor desc;
877 struct ethhdr *hdr;
878 int err;
879
880 rxfid = hermes_read_regn(hw, RXFID);
881
882 err = hermes_bap_pread(hw, IRQ_BAP, &desc, sizeof(desc),
883 rxfid, 0);
884 if (err) {
885 printk(KERN_ERR "%s: error %d reading Rx descriptor. "
886 "Frame dropped.\n", dev->name, err);
887 goto update_stats;
888 }
889
890 status = le16_to_cpu(desc.status);
891
892 if (status & HERMES_RXSTAT_BADCRC) {
893 DEBUG(1, "%s: Bad CRC on Rx. Frame dropped.\n",
894 dev->name);
895 stats->rx_crc_errors++;
896 goto update_stats;
897 }
898
899 /* Handle frames in monitor mode */
900 if (priv->iw_mode == IW_MODE_MONITOR) {
901 orinoco_rx_monitor(dev, rxfid, &desc);
902 return;
903 }
904
905 if (status & HERMES_RXSTAT_UNDECRYPTABLE) {
906 DEBUG(1, "%s: Undecryptable frame on Rx. Frame dropped.\n",
907 dev->name);
908 wstats->discard.code++;
909 goto update_stats;
910 }
911
912 length = le16_to_cpu(desc.data_len);
913 fc = le16_to_cpu(desc.frame_ctl);
914
915 /* Sanity checks */
916 if (length < 3) { /* No for even an 802.2 LLC header */
917 /* At least on Symbol firmware with PCF we get quite a
918 lot of these legitimately - Poll frames with no
919 data. */
920 return;
921 }
922 if (length > IEEE80211_DATA_LEN) {
923 printk(KERN_WARNING "%s: Oversized frame received (%d bytes)\n",
924 dev->name, length);
925 stats->rx_length_errors++;
926 goto update_stats;
927 }
928
929 /* We need space for the packet data itself, plus an ethernet
930 header, plus 2 bytes so we can align the IP header on a
931 32bit boundary, plus 1 byte so we can read in odd length
932 packets from the card, which has an IO granularity of 16
933 bits */
934 skb = dev_alloc_skb(length+ETH_HLEN+2+1);
935 if (!skb) {
936 printk(KERN_WARNING "%s: Can't allocate skb for Rx\n",
937 dev->name);
938 goto update_stats;
939 }
940
941 /* We'll prepend the header, so reserve space for it. The worst
942 case is no decapsulation, when 802.3 header is prepended and
943 nothing is removed. 2 is for aligning the IP header. */
944 skb_reserve(skb, ETH_HLEN + 2);
945
946 err = hermes_bap_pread(hw, IRQ_BAP, skb_put(skb, length),
947 ALIGN(length, 2), rxfid,
948 HERMES_802_2_OFFSET);
949 if (err) {
950 printk(KERN_ERR "%s: error %d reading frame. "
951 "Frame dropped.\n", dev->name, err);
952 goto drop;
953 }
954
955 /* Handle decapsulation
956 * In most cases, the firmware tell us about SNAP frames.
957 * For some reason, the SNAP frames sent by LinkSys APs
958 * are not properly recognised by most firmwares.
959 * So, check ourselves */
960 if (length >= ENCAPS_OVERHEAD &&
961 (((status & HERMES_RXSTAT_MSGTYPE) == HERMES_RXSTAT_1042) ||
962 ((status & HERMES_RXSTAT_MSGTYPE) == HERMES_RXSTAT_TUNNEL) ||
963 is_ethersnap(skb->data))) {
964 /* These indicate a SNAP within 802.2 LLC within
965 802.11 frame which we'll need to de-encapsulate to
966 the original EthernetII frame. */
967 hdr = (struct ethhdr *)skb_push(skb, ETH_HLEN - ENCAPS_OVERHEAD);
968 } else {
969 /* 802.3 frame - prepend 802.3 header as is */
970 hdr = (struct ethhdr *)skb_push(skb, ETH_HLEN);
971 hdr->h_proto = htons(length);
972 }
973 memcpy(hdr->h_dest, desc.addr1, ETH_ALEN);
974 if (fc & IEEE80211_FCTL_FROMDS)
975 memcpy(hdr->h_source, desc.addr3, ETH_ALEN);
976 else
977 memcpy(hdr->h_source, desc.addr2, ETH_ALEN);
978
979 dev->last_rx = jiffies;
980 skb->dev = dev;
981 skb->protocol = eth_type_trans(skb, dev);
982 skb->ip_summed = CHECKSUM_NONE;
983 if (fc & IEEE80211_FCTL_TODS)
984 skb->pkt_type = PACKET_OTHERHOST;
985
986 /* Process the wireless stats if needed */
987 orinoco_stat_gather(dev, skb, &desc);
988
989 /* Pass the packet to the networking stack */
990 netif_rx(skb);
991 stats->rx_packets++;
992 stats->rx_bytes += length;
993
994 return;
995
996 drop:
997 dev_kfree_skb_irq(skb);
998 update_stats:
999 stats->rx_errors++;
1000 stats->rx_dropped++;
1001 }
1002
1003 /********************************************************************/
1004 /* Rx path (info frames) */
1005 /********************************************************************/
1006
1007 static void print_linkstatus(struct net_device *dev, u16 status)
1008 {
1009 char * s;
1010
1011 if (suppress_linkstatus)
1012 return;
1013
1014 switch (status) {
1015 case HERMES_LINKSTATUS_NOT_CONNECTED:
1016 s = "Not Connected";
1017 break;
1018 case HERMES_LINKSTATUS_CONNECTED:
1019 s = "Connected";
1020 break;
1021 case HERMES_LINKSTATUS_DISCONNECTED:
1022 s = "Disconnected";
1023 break;
1024 case HERMES_LINKSTATUS_AP_CHANGE:
1025 s = "AP Changed";
1026 break;
1027 case HERMES_LINKSTATUS_AP_OUT_OF_RANGE:
1028 s = "AP Out of Range";
1029 break;
1030 case HERMES_LINKSTATUS_AP_IN_RANGE:
1031 s = "AP In Range";
1032 break;
1033 case HERMES_LINKSTATUS_ASSOC_FAILED:
1034 s = "Association Failed";
1035 break;
1036 default:
1037 s = "UNKNOWN";
1038 }
1039
1040 printk(KERN_INFO "%s: New link status: %s (%04x)\n",
1041 dev->name, s, status);
1042 }
1043
1044 /* Search scan results for requested BSSID, join it if found */
1045 static void orinoco_join_ap(struct net_device *dev)
1046 {
1047 struct orinoco_private *priv = netdev_priv(dev);
1048 struct hermes *hw = &priv->hw;
1049 int err;
1050 unsigned long flags;
1051 struct join_req {
1052 u8 bssid[ETH_ALEN];
1053 u16 channel;
1054 } __attribute__ ((packed)) req;
1055 const int atom_len = offsetof(struct prism2_scan_apinfo, atim);
1056 struct prism2_scan_apinfo *atom = NULL;
1057 int offset = 4;
1058 int found = 0;
1059 u8 *buf;
1060 u16 len;
1061
1062 /* Allocate buffer for scan results */
1063 buf = kmalloc(MAX_SCAN_LEN, GFP_KERNEL);
1064 if (! buf)
1065 return;
1066
1067 if (orinoco_lock(priv, &flags) != 0)
1068 goto out;
1069
1070 /* Sanity checks in case user changed something in the meantime */
1071 if (! priv->bssid_fixed)
1072 goto out;
1073
1074 if (strlen(priv->desired_essid) == 0)
1075 goto out;
1076
1077 /* Read scan results from the firmware */
1078 err = hermes_read_ltv(hw, USER_BAP,
1079 HERMES_RID_SCANRESULTSTABLE,
1080 MAX_SCAN_LEN, &len, buf);
1081 if (err) {
1082 printk(KERN_ERR "%s: Cannot read scan results\n",
1083 dev->name);
1084 goto out;
1085 }
1086
1087 len = HERMES_RECLEN_TO_BYTES(len);
1088
1089 /* Go through the scan results looking for the channel of the AP
1090 * we were requested to join */
1091 for (; offset + atom_len <= len; offset += atom_len) {
1092 atom = (struct prism2_scan_apinfo *) (buf + offset);
1093 if (memcmp(&atom->bssid, priv->desired_bssid, ETH_ALEN) == 0) {
1094 found = 1;
1095 break;
1096 }
1097 }
1098
1099 if (! found) {
1100 DEBUG(1, "%s: Requested AP not found in scan results\n",
1101 dev->name);
1102 goto out;
1103 }
1104
1105 memcpy(req.bssid, priv->desired_bssid, ETH_ALEN);
1106 req.channel = atom->channel; /* both are little-endian */
1107 err = HERMES_WRITE_RECORD(hw, USER_BAP, HERMES_RID_CNFJOINREQUEST,
1108 &req);
1109 if (err)
1110 printk(KERN_ERR "%s: Error issuing join request\n", dev->name);
1111
1112 out:
1113 kfree(buf);
1114 orinoco_unlock(priv, &flags);
1115 }
1116
1117 /* Send new BSSID to userspace */
1118 static void orinoco_send_wevents(struct net_device *dev)
1119 {
1120 struct orinoco_private *priv = netdev_priv(dev);
1121 struct hermes *hw = &priv->hw;
1122 union iwreq_data wrqu;
1123 int err;
1124 unsigned long flags;
1125
1126 if (orinoco_lock(priv, &flags) != 0)
1127 return;
1128
1129 err = hermes_read_ltv(hw, IRQ_BAP, HERMES_RID_CURRENTBSSID,
1130 ETH_ALEN, NULL, wrqu.ap_addr.sa_data);
1131 if (err != 0)
1132 return;
1133
1134 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
1135
1136 /* Send event to user space */
1137 wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
1138 orinoco_unlock(priv, &flags);
1139 }
1140
1141 static void __orinoco_ev_info(struct net_device *dev, hermes_t *hw)
1142 {
1143 struct orinoco_private *priv = netdev_priv(dev);
1144 u16 infofid;
1145 struct {
1146 u16 len;
1147 u16 type;
1148 } __attribute__ ((packed)) info;
1149 int len, type;
1150 int err;
1151
1152 /* This is an answer to an INQUIRE command that we did earlier,
1153 * or an information "event" generated by the card
1154 * The controller return to us a pseudo frame containing
1155 * the information in question - Jean II */
1156 infofid = hermes_read_regn(hw, INFOFID);
1157
1158 /* Read the info frame header - don't try too hard */
1159 err = hermes_bap_pread(hw, IRQ_BAP, &info, sizeof(info),
1160 infofid, 0);
1161 if (err) {
1162 printk(KERN_ERR "%s: error %d reading info frame. "
1163 "Frame dropped.\n", dev->name, err);
1164 return;
1165 }
1166
1167 len = HERMES_RECLEN_TO_BYTES(le16_to_cpu(info.len));
1168 type = le16_to_cpu(info.type);
1169
1170 switch (type) {
1171 case HERMES_INQ_TALLIES: {
1172 struct hermes_tallies_frame tallies;
1173 struct iw_statistics *wstats = &priv->wstats;
1174
1175 if (len > sizeof(tallies)) {
1176 printk(KERN_WARNING "%s: Tallies frame too long (%d bytes)\n",
1177 dev->name, len);
1178 len = sizeof(tallies);
1179 }
1180
1181 err = hermes_bap_pread(hw, IRQ_BAP, &tallies, len,
1182 infofid, sizeof(info));
1183 if (err)
1184 break;
1185
1186 /* Increment our various counters */
1187 /* wstats->discard.nwid - no wrong BSSID stuff */
1188 wstats->discard.code +=
1189 le16_to_cpu(tallies.RxWEPUndecryptable);
1190 if (len == sizeof(tallies))
1191 wstats->discard.code +=
1192 le16_to_cpu(tallies.RxDiscards_WEPICVError) +
1193 le16_to_cpu(tallies.RxDiscards_WEPExcluded);
1194 wstats->discard.misc +=
1195 le16_to_cpu(tallies.TxDiscardsWrongSA);
1196 wstats->discard.fragment +=
1197 le16_to_cpu(tallies.RxMsgInBadMsgFragments);
1198 wstats->discard.retries +=
1199 le16_to_cpu(tallies.TxRetryLimitExceeded);
1200 /* wstats->miss.beacon - no match */
1201 }
1202 break;
1203 case HERMES_INQ_LINKSTATUS: {
1204 struct hermes_linkstatus linkstatus;
1205 u16 newstatus;
1206 int connected;
1207
1208 if (priv->iw_mode == IW_MODE_MONITOR)
1209 break;
1210
1211 if (len != sizeof(linkstatus)) {
1212 printk(KERN_WARNING "%s: Unexpected size for linkstatus frame (%d bytes)\n",
1213 dev->name, len);
1214 break;
1215 }
1216
1217 err = hermes_bap_pread(hw, IRQ_BAP, &linkstatus, len,
1218 infofid, sizeof(info));
1219 if (err)
1220 break;
1221 newstatus = le16_to_cpu(linkstatus.linkstatus);
1222
1223 /* Symbol firmware uses "out of range" to signal that
1224 * the hostscan frame can be requested. */
1225 if (newstatus == HERMES_LINKSTATUS_AP_OUT_OF_RANGE &&
1226 priv->firmware_type == FIRMWARE_TYPE_SYMBOL &&
1227 priv->has_hostscan && priv->scan_inprogress) {
1228 hermes_inquire(hw, HERMES_INQ_HOSTSCAN_SYMBOL);
1229 break;
1230 }
1231
1232 connected = (newstatus == HERMES_LINKSTATUS_CONNECTED)
1233 || (newstatus == HERMES_LINKSTATUS_AP_CHANGE)
1234 || (newstatus == HERMES_LINKSTATUS_AP_IN_RANGE);
1235
1236 if (connected)
1237 netif_carrier_on(dev);
1238 else if (!ignore_disconnect)
1239 netif_carrier_off(dev);
1240
1241 if (newstatus != priv->last_linkstatus) {
1242 priv->last_linkstatus = newstatus;
1243 print_linkstatus(dev, newstatus);
1244 /* The info frame contains only one word which is the
1245 * status (see hermes.h). The status is pretty boring
1246 * in itself, that's why we export the new BSSID...
1247 * Jean II */
1248 schedule_work(&priv->wevent_work);
1249 }
1250 }
1251 break;
1252 case HERMES_INQ_SCAN:
1253 if (!priv->scan_inprogress && priv->bssid_fixed &&
1254 priv->firmware_type == FIRMWARE_TYPE_INTERSIL) {
1255 schedule_work(&priv->join_work);
1256 break;
1257 }
1258 /* fall through */
1259 case HERMES_INQ_HOSTSCAN:
1260 case HERMES_INQ_HOSTSCAN_SYMBOL: {
1261 /* Result of a scanning. Contains information about
1262 * cells in the vicinity - Jean II */
1263 union iwreq_data wrqu;
1264 unsigned char *buf;
1265
1266 /* Sanity check */
1267 if (len > 4096) {
1268 printk(KERN_WARNING "%s: Scan results too large (%d bytes)\n",
1269 dev->name, len);
1270 break;
1271 }
1272
1273 /* We are a strict producer. If the previous scan results
1274 * have not been consumed, we just have to drop this
1275 * frame. We can't remove the previous results ourselves,
1276 * that would be *very* racy... Jean II */
1277 if (priv->scan_result != NULL) {
1278 printk(KERN_WARNING "%s: Previous scan results not consumed, dropping info frame.\n", dev->name);
1279 break;
1280 }
1281
1282 /* Allocate buffer for results */
1283 buf = kmalloc(len, GFP_ATOMIC);
1284 if (buf == NULL)
1285 /* No memory, so can't printk()... */
1286 break;
1287
1288 /* Read scan data */
1289 err = hermes_bap_pread(hw, IRQ_BAP, (void *) buf, len,
1290 infofid, sizeof(info));
1291 if (err) {
1292 kfree(buf);
1293 break;
1294 }
1295
1296 #ifdef ORINOCO_DEBUG
1297 {
1298 int i;
1299 printk(KERN_DEBUG "Scan result [%02X", buf[0]);
1300 for(i = 1; i < (len * 2); i++)
1301 printk(":%02X", buf[i]);
1302 printk("]\n");
1303 }
1304 #endif /* ORINOCO_DEBUG */
1305
1306 /* Allow the clients to access the results */
1307 priv->scan_len = len;
1308 priv->scan_result = buf;
1309
1310 /* Send an empty event to user space.
1311 * We don't send the received data on the event because
1312 * it would require us to do complex transcoding, and
1313 * we want to minimise the work done in the irq handler
1314 * Use a request to extract the data - Jean II */
1315 wrqu.data.length = 0;
1316 wrqu.data.flags = 0;
1317 wireless_send_event(dev, SIOCGIWSCAN, &wrqu, NULL);
1318 }
1319 break;
1320 case HERMES_INQ_SEC_STAT_AGERE:
1321 /* Security status (Agere specific) */
1322 /* Ignore this frame for now */
1323 if (priv->firmware_type == FIRMWARE_TYPE_AGERE)
1324 break;
1325 /* fall through */
1326 default:
1327 printk(KERN_DEBUG "%s: Unknown information frame received: "
1328 "type 0x%04x, length %d\n", dev->name, type, len);
1329 /* We don't actually do anything about it */
1330 break;
1331 }
1332 }
1333
1334 static void __orinoco_ev_infdrop(struct net_device *dev, hermes_t *hw)
1335 {
1336 if (net_ratelimit())
1337 printk(KERN_DEBUG "%s: Information frame lost.\n", dev->name);
1338 }
1339
1340 /********************************************************************/
1341 /* Internal hardware control routines */
1342 /********************************************************************/
1343
1344 int __orinoco_up(struct net_device *dev)
1345 {
1346 struct orinoco_private *priv = netdev_priv(dev);
1347 struct hermes *hw = &priv->hw;
1348 int err;
1349
1350 netif_carrier_off(dev); /* just to make sure */
1351
1352 err = __orinoco_program_rids(dev);
1353 if (err) {
1354 printk(KERN_ERR "%s: Error %d configuring card\n",
1355 dev->name, err);
1356 return err;
1357 }
1358
1359 /* Fire things up again */
1360 hermes_set_irqmask(hw, ORINOCO_INTEN);
1361 err = hermes_enable_port(hw, 0);
1362 if (err) {
1363 printk(KERN_ERR "%s: Error %d enabling MAC port\n",
1364 dev->name, err);
1365 return err;
1366 }
1367
1368 netif_start_queue(dev);
1369
1370 return 0;
1371 }
1372
1373 int __orinoco_down(struct net_device *dev)
1374 {
1375 struct orinoco_private *priv = netdev_priv(dev);
1376 struct hermes *hw = &priv->hw;
1377 int err;
1378
1379 netif_stop_queue(dev);
1380
1381 if (! priv->hw_unavailable) {
1382 if (! priv->broken_disableport) {
1383 err = hermes_disable_port(hw, 0);
1384 if (err) {
1385 /* Some firmwares (e.g. Intersil 1.3.x) seem
1386 * to have problems disabling the port, oh
1387 * well, too bad. */
1388 printk(KERN_WARNING "%s: Error %d disabling MAC port\n",
1389 dev->name, err);
1390 priv->broken_disableport = 1;
1391 }
1392 }
1393 hermes_set_irqmask(hw, 0);
1394 hermes_write_regn(hw, EVACK, 0xffff);
1395 }
1396
1397 /* firmware will have to reassociate */
1398 netif_carrier_off(dev);
1399 priv->last_linkstatus = 0xffff;
1400
1401 return 0;
1402 }
1403
1404 int orinoco_reinit_firmware(struct net_device *dev)
1405 {
1406 struct orinoco_private *priv = netdev_priv(dev);
1407 struct hermes *hw = &priv->hw;
1408 int err;
1409
1410 err = hermes_init(hw);
1411 if (err)
1412 return err;
1413
1414 err = hermes_allocate(hw, priv->nicbuf_size, &priv->txfid);
1415 if (err == -EIO && priv->nicbuf_size > TX_NICBUF_SIZE_BUG) {
1416 /* Try workaround for old Symbol firmware bug */
1417 printk(KERN_WARNING "%s: firmware ALLOC bug detected "
1418 "(old Symbol firmware?). Trying to work around... ",
1419 dev->name);
1420
1421 priv->nicbuf_size = TX_NICBUF_SIZE_BUG;
1422 err = hermes_allocate(hw, priv->nicbuf_size, &priv->txfid);
1423 if (err)
1424 printk("failed!\n");
1425 else
1426 printk("ok.\n");
1427 }
1428
1429 return err;
1430 }
1431
1432 static int __orinoco_hw_set_bitrate(struct orinoco_private *priv)
1433 {
1434 hermes_t *hw = &priv->hw;
1435 int err = 0;
1436
1437 if (priv->bitratemode >= BITRATE_TABLE_SIZE) {
1438 printk(KERN_ERR "%s: BUG: Invalid bitrate mode %d\n",
1439 priv->ndev->name, priv->bitratemode);
1440 return -EINVAL;
1441 }
1442
1443 switch (priv->firmware_type) {
1444 case FIRMWARE_TYPE_AGERE:
1445 err = hermes_write_wordrec(hw, USER_BAP,
1446 HERMES_RID_CNFTXRATECONTROL,
1447 bitrate_table[priv->bitratemode].agere_txratectrl);
1448 break;
1449 case FIRMWARE_TYPE_INTERSIL:
1450 case FIRMWARE_TYPE_SYMBOL:
1451 err = hermes_write_wordrec(hw, USER_BAP,
1452 HERMES_RID_CNFTXRATECONTROL,
1453 bitrate_table[priv->bitratemode].intersil_txratectrl);
1454 break;
1455 default:
1456 BUG();
1457 }
1458
1459 return err;
1460 }
1461
1462 /* Set fixed AP address */
1463 static int __orinoco_hw_set_wap(struct orinoco_private *priv)
1464 {
1465 int roaming_flag;
1466 int err = 0;
1467 hermes_t *hw = &priv->hw;
1468
1469 switch (priv->firmware_type) {
1470 case FIRMWARE_TYPE_AGERE:
1471 /* not supported */
1472 break;
1473 case FIRMWARE_TYPE_INTERSIL:
1474 if (priv->bssid_fixed)
1475 roaming_flag = 2;
1476 else
1477 roaming_flag = 1;
1478
1479 err = hermes_write_wordrec(hw, USER_BAP,
1480 HERMES_RID_CNFROAMINGMODE,
1481 roaming_flag);
1482 break;
1483 case FIRMWARE_TYPE_SYMBOL:
1484 err = HERMES_WRITE_RECORD(hw, USER_BAP,
1485 HERMES_RID_CNFMANDATORYBSSID_SYMBOL,
1486 &priv->desired_bssid);
1487 break;
1488 }
1489 return err;
1490 }
1491
1492 /* Change the WEP keys and/or the current keys. Can be called
1493 * either from __orinoco_hw_setup_wep() or directly from
1494 * orinoco_ioctl_setiwencode(). In the later case the association
1495 * with the AP is not broken (if the firmware can handle it),
1496 * which is needed for 802.1x implementations. */
1497 static int __orinoco_hw_setup_wepkeys(struct orinoco_private *priv)
1498 {
1499 hermes_t *hw = &priv->hw;
1500 int err = 0;
1501
1502 switch (priv->firmware_type) {
1503 case FIRMWARE_TYPE_AGERE:
1504 err = HERMES_WRITE_RECORD(hw, USER_BAP,
1505 HERMES_RID_CNFWEPKEYS_AGERE,
1506 &priv->keys);
1507 if (err)
1508 return err;
1509 err = hermes_write_wordrec(hw, USER_BAP,
1510 HERMES_RID_CNFTXKEY_AGERE,
1511 priv->tx_key);
1512 if (err)
1513 return err;
1514 break;
1515 case FIRMWARE_TYPE_INTERSIL:
1516 case FIRMWARE_TYPE_SYMBOL:
1517 {
1518 int keylen;
1519 int i;
1520
1521 /* Force uniform key length to work around firmware bugs */
1522 keylen = le16_to_cpu(priv->keys[priv->tx_key].len);
1523
1524 if (keylen > LARGE_KEY_SIZE) {
1525 printk(KERN_ERR "%s: BUG: Key %d has oversize length %d.\n",
1526 priv->ndev->name, priv->tx_key, keylen);
1527 return -E2BIG;
1528 }
1529
1530 /* Write all 4 keys */
1531 for(i = 0; i < ORINOCO_MAX_KEYS; i++) {
1532 err = hermes_write_ltv(hw, USER_BAP,
1533 HERMES_RID_CNFDEFAULTKEY0 + i,
1534 HERMES_BYTES_TO_RECLEN(keylen),
1535 priv->keys[i].data);
1536 if (err)
1537 return err;
1538 }
1539
1540 /* Write the index of the key used in transmission */
1541 err = hermes_write_wordrec(hw, USER_BAP,
1542 HERMES_RID_CNFWEPDEFAULTKEYID,
1543 priv->tx_key);
1544 if (err)
1545 return err;
1546 }
1547 break;
1548 }
1549
1550 return 0;
1551 }
1552
1553 static int __orinoco_hw_setup_wep(struct orinoco_private *priv)
1554 {
1555 hermes_t *hw = &priv->hw;
1556 int err = 0;
1557 int master_wep_flag;
1558 int auth_flag;
1559
1560 if (priv->wep_on)
1561 __orinoco_hw_setup_wepkeys(priv);
1562
1563 if (priv->wep_restrict)
1564 auth_flag = HERMES_AUTH_SHARED_KEY;
1565 else
1566 auth_flag = HERMES_AUTH_OPEN;
1567
1568 switch (priv->firmware_type) {
1569 case FIRMWARE_TYPE_AGERE: /* Agere style WEP */
1570 if (priv->wep_on) {
1571 /* Enable the shared-key authentication. */
1572 err = hermes_write_wordrec(hw, USER_BAP,
1573 HERMES_RID_CNFAUTHENTICATION_AGERE,
1574 auth_flag);
1575 }
1576 err = hermes_write_wordrec(hw, USER_BAP,
1577 HERMES_RID_CNFWEPENABLED_AGERE,
1578 priv->wep_on);
1579 if (err)
1580 return err;
1581 break;
1582
1583 case FIRMWARE_TYPE_INTERSIL: /* Intersil style WEP */
1584 case FIRMWARE_TYPE_SYMBOL: /* Symbol style WEP */
1585 if (priv->wep_on) {
1586 if (priv->wep_restrict ||
1587 (priv->firmware_type == FIRMWARE_TYPE_SYMBOL))
1588 master_wep_flag = HERMES_WEP_PRIVACY_INVOKED |
1589 HERMES_WEP_EXCL_UNENCRYPTED;
1590 else
1591 master_wep_flag = HERMES_WEP_PRIVACY_INVOKED;
1592
1593 err = hermes_write_wordrec(hw, USER_BAP,
1594 HERMES_RID_CNFAUTHENTICATION,
1595 auth_flag);
1596 if (err)
1597 return err;
1598 } else
1599 master_wep_flag = 0;
1600
1601 if (priv->iw_mode == IW_MODE_MONITOR)
1602 master_wep_flag |= HERMES_WEP_HOST_DECRYPT;
1603
1604 /* Master WEP setting : on/off */
1605 err = hermes_write_wordrec(hw, USER_BAP,
1606 HERMES_RID_CNFWEPFLAGS_INTERSIL,
1607 master_wep_flag);
1608 if (err)
1609 return err;
1610
1611 break;
1612 }
1613
1614 return 0;
1615 }
1616
1617 static int __orinoco_program_rids(struct net_device *dev)
1618 {
1619 struct orinoco_private *priv = netdev_priv(dev);
1620 hermes_t *hw = &priv->hw;
1621 int err;
1622 struct hermes_idstring idbuf;
1623
1624 /* Set the MAC address */
1625 err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFOWNMACADDR,
1626 HERMES_BYTES_TO_RECLEN(ETH_ALEN), dev->dev_addr);
1627 if (err) {
1628 printk(KERN_ERR "%s: Error %d setting MAC address\n",
1629 dev->name, err);
1630 return err;
1631 }
1632
1633 /* Set up the link mode */
1634 err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFPORTTYPE,
1635 priv->port_type);
1636 if (err) {
1637 printk(KERN_ERR "%s: Error %d setting port type\n",
1638 dev->name, err);
1639 return err;
1640 }
1641 /* Set the channel/frequency */
1642 if (priv->channel != 0 && priv->iw_mode != IW_MODE_INFRA) {
1643 err = hermes_write_wordrec(hw, USER_BAP,
1644 HERMES_RID_CNFOWNCHANNEL,
1645 priv->channel);
1646 if (err) {
1647 printk(KERN_ERR "%s: Error %d setting channel %d\n",
1648 dev->name, err, priv->channel);
1649 return err;
1650 }
1651 }
1652
1653 if (priv->has_ibss) {
1654 u16 createibss;
1655
1656 if ((strlen(priv->desired_essid) == 0) && (priv->createibss)) {
1657 printk(KERN_WARNING "%s: This firmware requires an "
1658 "ESSID in IBSS-Ad-Hoc mode.\n", dev->name);
1659 /* With wvlan_cs, in this case, we would crash.
1660 * hopefully, this driver will behave better...
1661 * Jean II */
1662 createibss = 0;
1663 } else {
1664 createibss = priv->createibss;
1665 }
1666
1667 err = hermes_write_wordrec(hw, USER_BAP,
1668 HERMES_RID_CNFCREATEIBSS,
1669 createibss);
1670 if (err) {
1671 printk(KERN_ERR "%s: Error %d setting CREATEIBSS\n",
1672 dev->name, err);
1673 return err;
1674 }
1675 }
1676
1677 /* Set the desired BSSID */
1678 err = __orinoco_hw_set_wap(priv);
1679 if (err) {
1680 printk(KERN_ERR "%s: Error %d setting AP address\n",
1681 dev->name, err);
1682 return err;
1683 }
1684 /* Set the desired ESSID */
1685 idbuf.len = cpu_to_le16(strlen(priv->desired_essid));
1686 memcpy(&idbuf.val, priv->desired_essid, sizeof(idbuf.val));
1687 /* WinXP wants partner to configure OWNSSID even in IBSS mode. (jimc) */
1688 err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFOWNSSID,
1689 HERMES_BYTES_TO_RECLEN(strlen(priv->desired_essid)+2),
1690 &idbuf);
1691 if (err) {
1692 printk(KERN_ERR "%s: Error %d setting OWNSSID\n",
1693 dev->name, err);
1694 return err;
1695 }
1696 err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFDESIREDSSID,
1697 HERMES_BYTES_TO_RECLEN(strlen(priv->desired_essid)+2),
1698 &idbuf);
1699 if (err) {
1700 printk(KERN_ERR "%s: Error %d setting DESIREDSSID\n",
1701 dev->name, err);
1702 return err;
1703 }
1704
1705 /* Set the station name */
1706 idbuf.len = cpu_to_le16(strlen(priv->nick));
1707 memcpy(&idbuf.val, priv->nick, sizeof(idbuf.val));
1708 err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFOWNNAME,
1709 HERMES_BYTES_TO_RECLEN(strlen(priv->nick)+2),
1710 &idbuf);
1711 if (err) {
1712 printk(KERN_ERR "%s: Error %d setting nickname\n",
1713 dev->name, err);
1714 return err;
1715 }
1716
1717 /* Set AP density */
1718 if (priv->has_sensitivity) {
1719 err = hermes_write_wordrec(hw, USER_BAP,
1720 HERMES_RID_CNFSYSTEMSCALE,
1721 priv->ap_density);
1722 if (err) {
1723 printk(KERN_WARNING "%s: Error %d setting SYSTEMSCALE. "
1724 "Disabling sensitivity control\n",
1725 dev->name, err);
1726
1727 priv->has_sensitivity = 0;
1728 }
1729 }
1730
1731 /* Set RTS threshold */
1732 err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFRTSTHRESHOLD,
1733 priv->rts_thresh);
1734 if (err) {
1735 printk(KERN_ERR "%s: Error %d setting RTS threshold\n",
1736 dev->name, err);
1737 return err;
1738 }
1739
1740 /* Set fragmentation threshold or MWO robustness */
1741 if (priv->has_mwo)
1742 err = hermes_write_wordrec(hw, USER_BAP,
1743 HERMES_RID_CNFMWOROBUST_AGERE,
1744 priv->mwo_robust);
1745 else
1746 err = hermes_write_wordrec(hw, USER_BAP,
1747 HERMES_RID_CNFFRAGMENTATIONTHRESHOLD,
1748 priv->frag_thresh);
1749 if (err) {
1750 printk(KERN_ERR "%s: Error %d setting fragmentation\n",
1751 dev->name, err);
1752 return err;
1753 }
1754
1755 /* Set bitrate */
1756 err = __orinoco_hw_set_bitrate(priv);
1757 if (err) {
1758 printk(KERN_ERR "%s: Error %d setting bitrate\n",
1759 dev->name, err);
1760 return err;
1761 }
1762
1763 /* Set power management */
1764 if (priv->has_pm) {
1765 err = hermes_write_wordrec(hw, USER_BAP,
1766 HERMES_RID_CNFPMENABLED,
1767 priv->pm_on);
1768 if (err) {
1769 printk(KERN_ERR "%s: Error %d setting up PM\n",
1770 dev->name, err);
1771 return err;
1772 }
1773
1774 err = hermes_write_wordrec(hw, USER_BAP,
1775 HERMES_RID_CNFMULTICASTRECEIVE,
1776 priv->pm_mcast);
1777 if (err) {
1778 printk(KERN_ERR "%s: Error %d setting up PM\n",
1779 dev->name, err);
1780 return err;
1781 }
1782 err = hermes_write_wordrec(hw, USER_BAP,
1783 HERMES_RID_CNFMAXSLEEPDURATION,
1784 priv->pm_period);
1785 if (err) {
1786 printk(KERN_ERR "%s: Error %d setting up PM\n",
1787 dev->name, err);
1788 return err;
1789 }
1790 err = hermes_write_wordrec(hw, USER_BAP,
1791 HERMES_RID_CNFPMHOLDOVERDURATION,
1792 priv->pm_timeout);
1793 if (err) {
1794 printk(KERN_ERR "%s: Error %d setting up PM\n",
1795 dev->name, err);
1796 return err;
1797 }
1798 }
1799
1800 /* Set preamble - only for Symbol so far... */
1801 if (priv->has_preamble) {
1802 err = hermes_write_wordrec(hw, USER_BAP,
1803 HERMES_RID_CNFPREAMBLE_SYMBOL,
1804 priv->preamble);
1805 if (err) {
1806 printk(KERN_ERR "%s: Error %d setting preamble\n",
1807 dev->name, err);
1808 return err;
1809 }
1810 }
1811
1812 /* Set up encryption */
1813 if (priv->has_wep) {
1814 err = __orinoco_hw_setup_wep(priv);
1815 if (err) {
1816 printk(KERN_ERR "%s: Error %d activating WEP\n",
1817 dev->name, err);
1818 return err;
1819 }
1820 }
1821
1822 if (priv->iw_mode == IW_MODE_MONITOR) {
1823 /* Enable monitor mode */
1824 dev->type = ARPHRD_IEEE80211;
1825 err = hermes_docmd_wait(hw, HERMES_CMD_TEST |
1826 HERMES_TEST_MONITOR, 0, NULL);
1827 } else {
1828 /* Disable monitor mode */
1829 dev->type = ARPHRD_ETHER;
1830 err = hermes_docmd_wait(hw, HERMES_CMD_TEST |
1831 HERMES_TEST_STOP, 0, NULL);
1832 }
1833 if (err)
1834 return err;
1835
1836 /* Set promiscuity / multicast*/
1837 priv->promiscuous = 0;
1838 priv->mc_count = 0;
1839 __orinoco_set_multicast_list(dev); /* FIXME: what about the xmit_lock */
1840
1841 return 0;
1842 }
1843
1844 /* FIXME: return int? */
1845 static void
1846 __orinoco_set_multicast_list(struct net_device *dev)
1847 {
1848 struct orinoco_private *priv = netdev_priv(dev);
1849 hermes_t *hw = &priv->hw;
1850 int err = 0;
1851 int promisc, mc_count;
1852
1853 /* The Hermes doesn't seem to have an allmulti mode, so we go
1854 * into promiscuous mode and let the upper levels deal. */
1855 if ( (dev->flags & IFF_PROMISC) || (dev->flags & IFF_ALLMULTI) ||
1856 (dev->mc_count > MAX_MULTICAST(priv)) ) {
1857 promisc = 1;
1858 mc_count = 0;
1859 } else {
1860 promisc = 0;
1861 mc_count = dev->mc_count;
1862 }
1863
1864 if (promisc != priv->promiscuous) {
1865 err = hermes_write_wordrec(hw, USER_BAP,
1866 HERMES_RID_CNFPROMISCUOUSMODE,
1867 promisc);
1868 if (err) {
1869 printk(KERN_ERR "%s: Error %d setting PROMISCUOUSMODE to 1.\n",
1870 dev->name, err);
1871 } else
1872 priv->promiscuous = promisc;
1873 }
1874
1875 if (! promisc && (mc_count || priv->mc_count) ) {
1876 struct dev_mc_list *p = dev->mc_list;
1877 struct hermes_multicast mclist;
1878 int i;
1879
1880 for (i = 0; i < mc_count; i++) {
1881 /* paranoia: is list shorter than mc_count? */
1882 BUG_ON(! p);
1883 /* paranoia: bad address size in list? */
1884 BUG_ON(p->dmi_addrlen != ETH_ALEN);
1885
1886 memcpy(mclist.addr[i], p->dmi_addr, ETH_ALEN);
1887 p = p->next;
1888 }
1889
1890 if (p)
1891 printk(KERN_WARNING "%s: Multicast list is "
1892 "longer than mc_count\n", dev->name);
1893
1894 err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFGROUPADDRESSES,
1895 HERMES_BYTES_TO_RECLEN(priv->mc_count * ETH_ALEN),
1896 &mclist);
1897 if (err)
1898 printk(KERN_ERR "%s: Error %d setting multicast list.\n",
1899 dev->name, err);
1900 else
1901 priv->mc_count = mc_count;
1902 }
1903
1904 /* Since we can set the promiscuous flag when it wasn't asked
1905 for, make sure the net_device knows about it. */
1906 if (priv->promiscuous)
1907 dev->flags |= IFF_PROMISC;
1908 else
1909 dev->flags &= ~IFF_PROMISC;
1910 }
1911
1912 /* This must be called from user context, without locks held - use
1913 * schedule_work() */
1914 static void orinoco_reset(struct net_device *dev)
1915 {
1916 struct orinoco_private *priv = netdev_priv(dev);
1917 struct hermes *hw = &priv->hw;
1918 int err;
1919 unsigned long flags;
1920
1921 if (orinoco_lock(priv, &flags) != 0)
1922 /* When the hardware becomes available again, whatever
1923 * detects that is responsible for re-initializing
1924 * it. So no need for anything further */
1925 return;
1926
1927 netif_stop_queue(dev);
1928
1929 /* Shut off interrupts. Depending on what state the hardware
1930 * is in, this might not work, but we'll try anyway */
1931 hermes_set_irqmask(hw, 0);
1932 hermes_write_regn(hw, EVACK, 0xffff);
1933
1934 priv->hw_unavailable++;
1935 priv->last_linkstatus = 0xffff; /* firmware will have to reassociate */
1936 netif_carrier_off(dev);
1937
1938 orinoco_unlock(priv, &flags);
1939
1940 /* Scanning support: Cleanup of driver struct */
1941 kfree(priv->scan_result);
1942 priv->scan_result = NULL;
1943 priv->scan_inprogress = 0;
1944
1945 if (priv->hard_reset) {
1946 err = (*priv->hard_reset)(priv);
1947 if (err) {
1948 printk(KERN_ERR "%s: orinoco_reset: Error %d "
1949 "performing hard reset\n", dev->name, err);
1950 goto disable;
1951 }
1952 }
1953
1954 err = orinoco_reinit_firmware(dev);
1955 if (err) {
1956 printk(KERN_ERR "%s: orinoco_reset: Error %d re-initializing firmware\n",
1957 dev->name, err);
1958 goto disable;
1959 }
1960
1961 spin_lock_irq(&priv->lock); /* This has to be called from user context */
1962
1963 priv->hw_unavailable--;
1964
1965 /* priv->open or priv->hw_unavailable might have changed while
1966 * we dropped the lock */
1967 if (priv->open && (! priv->hw_unavailable)) {
1968 err = __orinoco_up(dev);
1969 if (err) {
1970 printk(KERN_ERR "%s: orinoco_reset: Error %d reenabling card\n",
1971 dev->name, err);
1972 } else
1973 dev->trans_start = jiffies;
1974 }
1975
1976 spin_unlock_irq(&priv->lock);
1977
1978 return;
1979 disable:
1980 hermes_set_irqmask(hw, 0);
1981 netif_device_detach(dev);
1982 printk(KERN_ERR "%s: Device has been disabled!\n", dev->name);
1983 }
1984
1985 /********************************************************************/
1986 /* Interrupt handler */
1987 /********************************************************************/
1988
1989 static void __orinoco_ev_tick(struct net_device *dev, hermes_t *hw)
1990 {
1991 printk(KERN_DEBUG "%s: TICK\n", dev->name);
1992 }
1993
1994 static void __orinoco_ev_wterr(struct net_device *dev, hermes_t *hw)
1995 {
1996 /* This seems to happen a fair bit under load, but ignoring it
1997 seems to work fine...*/
1998 printk(KERN_DEBUG "%s: MAC controller error (WTERR). Ignoring.\n",
1999 dev->name);
2000 }
2001
2002 irqreturn_t orinoco_interrupt(int irq, void *dev_id, struct pt_regs *regs)
2003 {
2004 struct net_device *dev = (struct net_device *)dev_id;
2005 struct orinoco_private *priv = netdev_priv(dev);
2006 hermes_t *hw = &priv->hw;
2007 int count = MAX_IRQLOOPS_PER_IRQ;
2008 u16 evstat, events;
2009 /* These are used to detect a runaway interrupt situation */
2010 /* If we get more than MAX_IRQLOOPS_PER_JIFFY iterations in a jiffy,
2011 * we panic and shut down the hardware */
2012 static int last_irq_jiffy = 0; /* jiffies value the last time
2013 * we were called */
2014 static int loops_this_jiffy = 0;
2015 unsigned long flags;
2016
2017 if (orinoco_lock(priv, &flags) != 0) {
2018 /* If hw is unavailable - we don't know if the irq was
2019 * for us or not */
2020 return IRQ_HANDLED;
2021 }
2022
2023 evstat = hermes_read_regn(hw, EVSTAT);
2024 events = evstat & hw->inten;
2025 if (! events) {
2026 orinoco_unlock(priv, &flags);
2027 return IRQ_NONE;
2028 }
2029
2030 if (jiffies != last_irq_jiffy)
2031 loops_this_jiffy = 0;
2032 last_irq_jiffy = jiffies;
2033
2034 while (events && count--) {
2035 if (++loops_this_jiffy > MAX_IRQLOOPS_PER_JIFFY) {
2036 printk(KERN_WARNING "%s: IRQ handler is looping too "
2037 "much! Resetting.\n", dev->name);
2038 /* Disable interrupts for now */
2039 hermes_set_irqmask(hw, 0);
2040 schedule_work(&priv->reset_work);
2041 break;
2042 }
2043
2044 /* Check the card hasn't been removed */
2045 if (! hermes_present(hw)) {
2046 DEBUG(0, "orinoco_interrupt(): card removed\n");
2047 break;
2048 }
2049
2050 if (events & HERMES_EV_TICK)
2051 __orinoco_ev_tick(dev, hw);
2052 if (events & HERMES_EV_WTERR)
2053 __orinoco_ev_wterr(dev, hw);
2054 if (events & HERMES_EV_INFDROP)
2055 __orinoco_ev_infdrop(dev, hw);
2056 if (events & HERMES_EV_INFO)
2057 __orinoco_ev_info(dev, hw);
2058 if (events & HERMES_EV_RX)
2059 __orinoco_ev_rx(dev, hw);
2060 if (events & HERMES_EV_TXEXC)
2061 __orinoco_ev_txexc(dev, hw);
2062 if (events & HERMES_EV_TX)
2063 __orinoco_ev_tx(dev, hw);
2064 if (events & HERMES_EV_ALLOC)
2065 __orinoco_ev_alloc(dev, hw);
2066
2067 hermes_write_regn(hw, EVACK, evstat);
2068
2069 evstat = hermes_read_regn(hw, EVSTAT);
2070 events = evstat & hw->inten;
2071 };
2072
2073 orinoco_unlock(priv, &flags);
2074 return IRQ_HANDLED;
2075 }
2076
2077 /********************************************************************/
2078 /* Initialization */
2079 /********************************************************************/
2080
2081 struct comp_id {
2082 u16 id, variant, major, minor;
2083 } __attribute__ ((packed));
2084
2085 static inline fwtype_t determine_firmware_type(struct comp_id *nic_id)
2086 {
2087 if (nic_id->id < 0x8000)
2088 return FIRMWARE_TYPE_AGERE;
2089 else if (nic_id->id == 0x8000 && nic_id->major == 0)
2090 return FIRMWARE_TYPE_SYMBOL;
2091 else
2092 return FIRMWARE_TYPE_INTERSIL;
2093 }
2094
2095 /* Set priv->firmware type, determine firmware properties */
2096 static int determine_firmware(struct net_device *dev)
2097 {
2098 struct orinoco_private *priv = netdev_priv(dev);
2099 hermes_t *hw = &priv->hw;
2100 int err;
2101 struct comp_id nic_id, sta_id;
2102 unsigned int firmver;
2103 char tmp[SYMBOL_MAX_VER_LEN+1];
2104
2105 /* Get the hardware version */
2106 err = HERMES_READ_RECORD(hw, USER_BAP, HERMES_RID_NICID, &nic_id);
2107 if (err) {
2108 printk(KERN_ERR "%s: Cannot read hardware identity: error %d\n",
2109 dev->name, err);
2110 return err;
2111 }
2112
2113 le16_to_cpus(&nic_id.id);
2114 le16_to_cpus(&nic_id.variant);
2115 le16_to_cpus(&nic_id.major);
2116 le16_to_cpus(&nic_id.minor);
2117 printk(KERN_DEBUG "%s: Hardware identity %04x:%04x:%04x:%04x\n",
2118 dev->name, nic_id.id, nic_id.variant,
2119 nic_id.major, nic_id.minor);
2120
2121 priv->firmware_type = determine_firmware_type(&nic_id);
2122
2123 /* Get the firmware version */
2124 err = HERMES_READ_RECORD(hw, USER_BAP, HERMES_RID_STAID, &sta_id);
2125 if (err) {
2126 printk(KERN_ERR "%s: Cannot read station identity: error %d\n",
2127 dev->name, err);
2128 return err;
2129 }
2130
2131 le16_to_cpus(&sta_id.id);
2132 le16_to_cpus(&sta_id.variant);
2133 le16_to_cpus(&sta_id.major);
2134 le16_to_cpus(&sta_id.minor);
2135 printk(KERN_DEBUG "%s: Station identity %04x:%04x:%04x:%04x\n",
2136 dev->name, sta_id.id, sta_id.variant,
2137 sta_id.major, sta_id.minor);
2138
2139 switch (sta_id.id) {
2140 case 0x15:
2141 printk(KERN_ERR "%s: Primary firmware is active\n",
2142 dev->name);
2143 return -ENODEV;
2144 case 0x14b:
2145 printk(KERN_ERR "%s: Tertiary firmware is active\n",
2146 dev->name);
2147 return -ENODEV;
2148 case 0x1f: /* Intersil, Agere, Symbol Spectrum24 */
2149 case 0x21: /* Symbol Spectrum24 Trilogy */
2150 break;
2151 default:
2152 printk(KERN_NOTICE "%s: Unknown station ID, please report\n",
2153 dev->name);
2154 break;
2155 }
2156
2157 /* Default capabilities */
2158 priv->has_sensitivity = 1;
2159 priv->has_mwo = 0;
2160 priv->has_preamble = 0;
2161 priv->has_port3 = 1;
2162 priv->has_ibss = 1;
2163 priv->has_wep = 0;
2164 priv->has_big_wep = 0;
2165
2166 /* Determine capabilities from the firmware version */
2167 switch (priv->firmware_type) {
2168 case FIRMWARE_TYPE_AGERE:
2169 /* Lucent Wavelan IEEE, Lucent Orinoco, Cabletron RoamAbout,
2170 ELSA, Melco, HP, IBM, Dell 1150, Compaq 110/210 */
2171 snprintf(priv->fw_name, sizeof(priv->fw_name) - 1,
2172 "Lucent/Agere %d.%02d", sta_id.major, sta_id.minor);
2173
2174 firmver = ((unsigned long)sta_id.major << 16) | sta_id.minor;
2175
2176 priv->has_ibss = (firmver >= 0x60006);
2177 priv->has_wep = (firmver >= 0x40020);
2178 priv->has_big_wep = 1; /* FIXME: this is wrong - how do we tell
2179 Gold cards from the others? */
2180 priv->has_mwo = (firmver >= 0x60000);
2181 priv->has_pm = (firmver >= 0x40020); /* Don't work in 7.52 ? */
2182 priv->ibss_port = 1;
2183 priv->has_hostscan = (firmver >= 0x8000a);
2184 priv->broken_monitor = (firmver >= 0x80000);
2185
2186 /* Tested with Agere firmware :
2187 * 1.16 ; 4.08 ; 4.52 ; 6.04 ; 6.16 ; 7.28 => Jean II
2188 * Tested CableTron firmware : 4.32 => Anton */
2189 break;
2190 case FIRMWARE_TYPE_SYMBOL:
2191 /* Symbol , 3Com AirConnect, Intel, Ericsson WLAN */
2192 /* Intel MAC : 00:02:B3:* */
2193 /* 3Com MAC : 00:50:DA:* */
2194 memset(tmp, 0, sizeof(tmp));
2195 /* Get the Symbol firmware version */
2196 err = hermes_read_ltv(hw, USER_BAP,
2197 HERMES_RID_SECONDARYVERSION_SYMBOL,
2198 SYMBOL_MAX_VER_LEN, NULL, &tmp);
2199 if (err) {
2200 printk(KERN_WARNING
2201 "%s: Error %d reading Symbol firmware info. Wildly guessing capabilities...\n",
2202 dev->name, err);
2203 firmver = 0;
2204 tmp[0] = '\0';
2205 } else {
2206 /* The firmware revision is a string, the format is
2207 * something like : "V2.20-01".
2208 * Quick and dirty parsing... - Jean II
2209 */
2210 firmver = ((tmp[1] - '0') << 16) | ((tmp[3] - '0') << 12)
2211 | ((tmp[4] - '0') << 8) | ((tmp[6] - '0') << 4)
2212 | (tmp[7] - '0');
2213
2214 tmp[SYMBOL_MAX_VER_LEN] = '\0';
2215 }
2216
2217 snprintf(priv->fw_name, sizeof(priv->fw_name) - 1,
2218 "Symbol %s", tmp);
2219
2220 priv->has_ibss = (firmver >= 0x20000);
2221 priv->has_wep = (firmver >= 0x15012);
2222 priv->has_big_wep = (firmver >= 0x20000);
2223 priv->has_pm = (firmver >= 0x20000 && firmver < 0x22000) ||
2224 (firmver >= 0x29000 && firmver < 0x30000) ||
2225 firmver >= 0x31000;
2226 priv->has_preamble = (firmver >= 0x20000);
2227 priv->ibss_port = 4;
2228 priv->broken_disableport = (firmver == 0x25013) ||
2229 (firmver >= 0x30000 && firmver <= 0x31000);
2230 priv->has_hostscan = (firmver >= 0x31001) ||
2231 (firmver >= 0x29057 && firmver < 0x30000);
2232 /* Tested with Intel firmware : 0x20015 => Jean II */
2233 /* Tested with 3Com firmware : 0x15012 & 0x22001 => Jean II */
2234 break;
2235 case FIRMWARE_TYPE_INTERSIL:
2236 /* D-Link, Linksys, Adtron, ZoomAir, and many others...
2237 * Samsung, Compaq 100/200 and Proxim are slightly
2238 * different and less well tested */
2239 /* D-Link MAC : 00:40:05:* */
2240 /* Addtron MAC : 00:90:D1:* */
2241 snprintf(priv->fw_name, sizeof(priv->fw_name) - 1,
2242 "Intersil %d.%d.%d", sta_id.major, sta_id.minor,
2243 sta_id.variant);
2244
2245 firmver = ((unsigned long)sta_id.major << 16) |
2246 ((unsigned long)sta_id.minor << 8) | sta_id.variant;
2247
2248 priv->has_ibss = (firmver >= 0x000700); /* FIXME */
2249 priv->has_big_wep = priv->has_wep = (firmver >= 0x000800);
2250 priv->has_pm = (firmver >= 0x000700);
2251 priv->has_hostscan = (firmver >= 0x010301);
2252
2253 if (firmver >= 0x000800)
2254 priv->ibss_port = 0;
2255 else {
2256 printk(KERN_NOTICE "%s: Intersil firmware earlier "
2257 "than v0.8.x - several features not supported\n",
2258 dev->name);
2259 priv->ibss_port = 1;
2260 }
2261 break;
2262 }
2263 printk(KERN_DEBUG "%s: Firmware determined as %s\n", dev->name,
2264 priv->fw_name);
2265
2266 return 0;
2267 }
2268
2269 static int orinoco_init(struct net_device *dev)
2270 {
2271 struct orinoco_private *priv = netdev_priv(dev);
2272 hermes_t *hw = &priv->hw;
2273 int err = 0;
2274 struct hermes_idstring nickbuf;
2275 u16 reclen;
2276 int len;
2277
2278 TRACE_ENTER(dev->name);
2279
2280 /* No need to lock, the hw_unavailable flag is already set in
2281 * alloc_orinocodev() */
2282 priv->nicbuf_size = IEEE80211_FRAME_LEN + ETH_HLEN;
2283
2284 /* Initialize the firmware */
2285 err = orinoco_reinit_firmware(dev);
2286 if (err != 0) {
2287 printk(KERN_ERR "%s: failed to initialize firmware (err = %d)\n",
2288 dev->name, err);
2289 goto out;
2290 }
2291
2292 err = determine_firmware(dev);
2293 if (err != 0) {
2294 printk(KERN_ERR "%s: Incompatible firmware, aborting\n",
2295 dev->name);
2296 goto out;
2297 }
2298
2299 if (priv->has_port3)
2300 printk(KERN_DEBUG "%s: Ad-hoc demo mode supported\n", dev->name);
2301 if (priv->has_ibss)
2302 printk(KERN_DEBUG "%s: IEEE standard IBSS ad-hoc mode supported\n",
2303 dev->name);
2304 if (priv->has_wep) {
2305 printk(KERN_DEBUG "%s: WEP supported, ", dev->name);
2306 if (priv->has_big_wep)
2307 printk("104-bit key\n");
2308 else
2309 printk("40-bit key\n");
2310 }
2311
2312 /* Get the MAC address */
2313 err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CNFOWNMACADDR,
2314 ETH_ALEN, NULL, dev->dev_addr);
2315 if (err) {
2316 printk(KERN_WARNING "%s: failed to read MAC address!\n",
2317 dev->name);
2318 goto out;
2319 }
2320
2321 printk(KERN_DEBUG "%s: MAC address %02X:%02X:%02X:%02X:%02X:%02X\n",
2322 dev->name, dev->dev_addr[0], dev->dev_addr[1],
2323 dev->dev_addr[2], dev->dev_addr[3], dev->dev_addr[4],
2324 dev->dev_addr[5]);
2325
2326 /* Get the station name */
2327 err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CNFOWNNAME,
2328 sizeof(nickbuf), &reclen, &nickbuf);
2329 if (err) {
2330 printk(KERN_ERR "%s: failed to read station name\n",
2331 dev->name);
2332 goto out;
2333 }
2334 if (nickbuf.len)
2335 len = min(IW_ESSID_MAX_SIZE, (int)le16_to_cpu(nickbuf.len));
2336 else
2337 len = min(IW_ESSID_MAX_SIZE, 2 * reclen);
2338 memcpy(priv->nick, &nickbuf.val, len);
2339 priv->nick[len] = '\0';
2340
2341 printk(KERN_DEBUG "%s: Station name \"%s\"\n", dev->name, priv->nick);
2342
2343 /* Get allowed channels */
2344 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CHANNELLIST,
2345 &priv->channel_mask);
2346 if (err) {
2347 printk(KERN_ERR "%s: failed to read channel list!\n",
2348 dev->name);
2349 goto out;
2350 }
2351
2352 /* Get initial AP density */
2353 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFSYSTEMSCALE,
2354 &priv->ap_density);
2355 if (err || priv->ap_density < 1 || priv->ap_density > 3) {
2356 priv->has_sensitivity = 0;
2357 }
2358
2359 /* Get initial RTS threshold */
2360 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFRTSTHRESHOLD,
2361 &priv->rts_thresh);
2362 if (err) {
2363 printk(KERN_ERR "%s: failed to read RTS threshold!\n",
2364 dev->name);
2365 goto out;
2366 }
2367
2368 /* Get initial fragmentation settings */
2369 if (priv->has_mwo)
2370 err = hermes_read_wordrec(hw, USER_BAP,
2371 HERMES_RID_CNFMWOROBUST_AGERE,
2372 &priv->mwo_robust);
2373 else
2374 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFFRAGMENTATIONTHRESHOLD,
2375 &priv->frag_thresh);
2376 if (err) {
2377 printk(KERN_ERR "%s: failed to read fragmentation settings!\n",
2378 dev->name);
2379 goto out;
2380 }
2381
2382 /* Power management setup */
2383 if (priv->has_pm) {
2384 priv->pm_on = 0;
2385 priv->pm_mcast = 1;
2386 err = hermes_read_wordrec(hw, USER_BAP,
2387 HERMES_RID_CNFMAXSLEEPDURATION,
2388 &priv->pm_period);
2389 if (err) {
2390 printk(KERN_ERR "%s: failed to read power management period!\n",
2391 dev->name);
2392 goto out;
2393 }
2394 err = hermes_read_wordrec(hw, USER_BAP,
2395 HERMES_RID_CNFPMHOLDOVERDURATION,
2396 &priv->pm_timeout);
2397 if (err) {
2398 printk(KERN_ERR "%s: failed to read power management timeout!\n",
2399 dev->name);
2400 goto out;
2401 }
2402 }
2403
2404 /* Preamble setup */
2405 if (priv->has_preamble) {
2406 err = hermes_read_wordrec(hw, USER_BAP,
2407 HERMES_RID_CNFPREAMBLE_SYMBOL,
2408 &priv->preamble);
2409 if (err)
2410 goto out;
2411 }
2412
2413 /* Set up the default configuration */
2414 priv->iw_mode = IW_MODE_INFRA;
2415 /* By default use IEEE/IBSS ad-hoc mode if we have it */
2416 priv->prefer_port3 = priv->has_port3 && (! priv->has_ibss);
2417 set_port_type(priv);
2418 priv->channel = 0; /* use firmware default */
2419
2420 priv->promiscuous = 0;
2421 priv->wep_on = 0;
2422 priv->tx_key = 0;
2423
2424 /* Make the hardware available, as long as it hasn't been
2425 * removed elsewhere (e.g. by PCMCIA hot unplug) */
2426 spin_lock_irq(&priv->lock);
2427 priv->hw_unavailable--;
2428 spin_unlock_irq(&priv->lock);
2429
2430 printk(KERN_DEBUG "%s: ready\n", dev->name);
2431
2432 out:
2433 TRACE_EXIT(dev->name);
2434 return err;
2435 }
2436
2437 struct net_device *alloc_orinocodev(int sizeof_card,
2438 int (*hard_reset)(struct orinoco_private *))
2439 {
2440 struct net_device *dev;
2441 struct orinoco_private *priv;
2442
2443 dev = alloc_etherdev(sizeof(struct orinoco_private) + sizeof_card);
2444 if (! dev)
2445 return NULL;
2446 priv = netdev_priv(dev);
2447 priv->ndev = dev;
2448 if (sizeof_card)
2449 priv->card = (void *)((unsigned long)priv
2450 + sizeof(struct orinoco_private));
2451 else
2452 priv->card = NULL;
2453
2454 /* Setup / override net_device fields */
2455 dev->init = orinoco_init;
2456 dev->hard_start_xmit = orinoco_xmit;
2457 dev->tx_timeout = orinoco_tx_timeout;
2458 dev->watchdog_timeo = HZ; /* 1 second timeout */
2459 dev->get_stats = orinoco_get_stats;
2460 dev->ethtool_ops = &orinoco_ethtool_ops;
2461 dev->get_wireless_stats = orinoco_get_wireless_stats;
2462 dev->wireless_handlers = (struct iw_handler_def *)&orinoco_handler_def;
2463 dev->change_mtu = orinoco_change_mtu;
2464 dev->set_multicast_list = orinoco_set_multicast_list;
2465 /* we use the default eth_mac_addr for setting the MAC addr */
2466
2467 /* Set up default callbacks */
2468 dev->open = orinoco_open;
2469 dev->stop = orinoco_stop;
2470 priv->hard_reset = hard_reset;
2471
2472 spin_lock_init(&priv->lock);
2473 priv->open = 0;
2474 priv->hw_unavailable = 1; /* orinoco_init() must clear this
2475 * before anything else touches the
2476 * hardware */
2477 INIT_WORK(&priv->reset_work, (void (*)(void *))orinoco_reset, dev);
2478 INIT_WORK(&priv->join_work, (void (*)(void *))orinoco_join_ap, dev);
2479 INIT_WORK(&priv->wevent_work, (void (*)(void *))orinoco_send_wevents, dev);
2480
2481 netif_carrier_off(dev);
2482 priv->last_linkstatus = 0xffff;
2483
2484 return dev;
2485
2486 }
2487
2488 void free_orinocodev(struct net_device *dev)
2489 {
2490 struct orinoco_private *priv = netdev_priv(dev);
2491
2492 kfree(priv->scan_result);
2493 free_netdev(dev);
2494 }
2495
2496 /********************************************************************/
2497 /* Wireless extensions */
2498 /********************************************************************/
2499
2500 static int orinoco_hw_get_essid(struct orinoco_private *priv, int *active,
2501 char buf[IW_ESSID_MAX_SIZE+1])
2502 {
2503 hermes_t *hw = &priv->hw;
2504 int err = 0;
2505 struct hermes_idstring essidbuf;
2506 char *p = (char *)(&essidbuf.val);
2507 int len;
2508 unsigned long flags;
2509
2510 if (orinoco_lock(priv, &flags) != 0)
2511 return -EBUSY;
2512
2513 if (strlen(priv->desired_essid) > 0) {
2514 /* We read the desired SSID from the hardware rather
2515 than from priv->desired_essid, just in case the
2516 firmware is allowed to change it on us. I'm not
2517 sure about this */
2518 /* My guess is that the OWNSSID should always be whatever
2519 * we set to the card, whereas CURRENT_SSID is the one that
2520 * may change... - Jean II */
2521 u16 rid;
2522
2523 *active = 1;
2524
2525 rid = (priv->port_type == 3) ? HERMES_RID_CNFOWNSSID :
2526 HERMES_RID_CNFDESIREDSSID;
2527
2528 err = hermes_read_ltv(hw, USER_BAP, rid, sizeof(essidbuf),
2529 NULL, &essidbuf);
2530 if (err)
2531 goto fail_unlock;
2532 } else {
2533 *active = 0;
2534
2535 err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CURRENTSSID,
2536 sizeof(essidbuf), NULL, &essidbuf);
2537 if (err)
2538 goto fail_unlock;
2539 }
2540
2541 len = le16_to_cpu(essidbuf.len);
2542 BUG_ON(len > IW_ESSID_MAX_SIZE);
2543
2544 memset(buf, 0, IW_ESSID_MAX_SIZE+1);
2545 memcpy(buf, p, len);
2546 buf[len] = '\0';
2547
2548 fail_unlock:
2549 orinoco_unlock(priv, &flags);
2550
2551 return err;
2552 }
2553
2554 static long orinoco_hw_get_freq(struct orinoco_private *priv)
2555 {
2556
2557 hermes_t *hw = &priv->hw;
2558 int err = 0;
2559 u16 channel;
2560 long freq = 0;
2561 unsigned long flags;
2562
2563 if (orinoco_lock(priv, &flags) != 0)
2564 return -EBUSY;
2565
2566 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CURRENTCHANNEL, &channel);
2567 if (err)
2568 goto out;
2569
2570 /* Intersil firmware 1.3.5 returns 0 when the interface is down */
2571 if (channel == 0) {
2572 err = -EBUSY;
2573 goto out;
2574 }
2575
2576 if ( (channel < 1) || (channel > NUM_CHANNELS) ) {
2577 printk(KERN_WARNING "%s: Channel out of range (%d)!\n",
2578 priv->ndev->name, channel);
2579 err = -EBUSY;
2580 goto out;
2581
2582 }
2583 freq = channel_frequency[channel-1] * 100000;
2584
2585 out:
2586 orinoco_unlock(priv, &flags);
2587
2588 if (err > 0)
2589 err = -EBUSY;
2590 return err ? err : freq;
2591 }
2592
2593 static int orinoco_hw_get_bitratelist(struct orinoco_private *priv,
2594 int *numrates, s32 *rates, int max)
2595 {
2596 hermes_t *hw = &priv->hw;
2597 struct hermes_idstring list;
2598 unsigned char *p = (unsigned char *)&list.val;
2599 int err = 0;
2600 int num;
2601 int i;
2602 unsigned long flags;
2603
2604 if (orinoco_lock(priv, &flags) != 0)
2605 return -EBUSY;
2606
2607 err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_SUPPORTEDDATARATES,
2608 sizeof(list), NULL, &list);
2609 orinoco_unlock(priv, &flags);
2610
2611 if (err)
2612 return err;
2613
2614 num = le16_to_cpu(list.len);
2615 *numrates = num;
2616 num = min(num, max);
2617
2618 for (i = 0; i < num; i++) {
2619 rates[i] = (p[i] & 0x7f) * 500000; /* convert to bps */
2620 }
2621
2622 return 0;
2623 }
2624
2625 static int orinoco_ioctl_getname(struct net_device *dev,
2626 struct iw_request_info *info,
2627 char *name,
2628 char *extra)
2629 {
2630 struct orinoco_private *priv = netdev_priv(dev);
2631 int numrates;
2632 int err;
2633
2634 err = orinoco_hw_get_bitratelist(priv, &numrates, NULL, 0);
2635
2636 if (!err && (numrates > 2))
2637 strcpy(name, "IEEE 802.11b");
2638 else
2639 strcpy(name, "IEEE 802.11-DS");
2640
2641 return 0;
2642 }
2643
2644 static int orinoco_ioctl_setwap(struct net_device *dev,
2645 struct iw_request_info *info,
2646 struct sockaddr *ap_addr,
2647 char *extra)
2648 {
2649 struct orinoco_private *priv = netdev_priv(dev);
2650 int err = -EINPROGRESS; /* Call commit handler */
2651 unsigned long flags;
2652 static const u8 off_addr[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
2653 static const u8 any_addr[] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
2654
2655 if (orinoco_lock(priv, &flags) != 0)
2656 return -EBUSY;
2657
2658 /* Enable automatic roaming - no sanity checks are needed */
2659 if (memcmp(&ap_addr->sa_data, off_addr, ETH_ALEN) == 0 ||
2660 memcmp(&ap_addr->sa_data, any_addr, ETH_ALEN) == 0) {
2661 priv->bssid_fixed = 0;
2662 memset(priv->desired_bssid, 0, ETH_ALEN);
2663
2664 /* "off" means keep existing connection */
2665 if (ap_addr->sa_data[0] == 0) {
2666 __orinoco_hw_set_wap(priv);
2667 err = 0;
2668 }
2669 goto out;
2670 }
2671
2672 if (priv->firmware_type == FIRMWARE_TYPE_AGERE) {
2673 printk(KERN_WARNING "%s: Lucent/Agere firmware doesn't "
2674 "support manual roaming\n",
2675 dev->name);
2676 err = -EOPNOTSUPP;
2677 goto out;
2678 }
2679
2680 if (priv->iw_mode != IW_MODE_INFRA) {
2681 printk(KERN_WARNING "%s: Manual roaming supported only in "
2682 "managed mode\n", dev->name);
2683 err = -EOPNOTSUPP;
2684 goto out;
2685 }
2686
2687 /* Intersil firmware hangs without Desired ESSID */
2688 if (priv->firmware_type == FIRMWARE_TYPE_INTERSIL &&
2689 strlen(priv->desired_essid) == 0) {
2690 printk(KERN_WARNING "%s: Desired ESSID must be set for "
2691 "manual roaming\n", dev->name);
2692 err = -EOPNOTSUPP;
2693 goto out;
2694 }
2695
2696 /* Finally, enable manual roaming */
2697 priv->bssid_fixed = 1;
2698 memcpy(priv->desired_bssid, &ap_addr->sa_data, ETH_ALEN);
2699
2700 out:
2701 orinoco_unlock(priv, &flags);
2702 return err;
2703 }
2704
2705 static int orinoco_ioctl_getwap(struct net_device *dev,
2706 struct iw_request_info *info,
2707 struct sockaddr *ap_addr,
2708 char *extra)
2709 {
2710 struct orinoco_private *priv = netdev_priv(dev);
2711
2712 hermes_t *hw = &priv->hw;
2713 int err = 0;
2714 unsigned long flags;
2715
2716 if (orinoco_lock(priv, &flags) != 0)
2717 return -EBUSY;
2718
2719 ap_addr->sa_family = ARPHRD_ETHER;
2720 err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CURRENTBSSID,
2721 ETH_ALEN, NULL, ap_addr->sa_data);
2722
2723 orinoco_unlock(priv, &flags);
2724
2725 return err;
2726 }
2727
2728 static int orinoco_ioctl_setmode(struct net_device *dev,
2729 struct iw_request_info *info,
2730 u32 *mode,
2731 char *extra)
2732 {
2733 struct orinoco_private *priv = netdev_priv(dev);
2734 int err = -EINPROGRESS; /* Call commit handler */
2735 unsigned long flags;
2736
2737 if (priv->iw_mode == *mode)
2738 return 0;
2739
2740 if (orinoco_lock(priv, &flags) != 0)
2741 return -EBUSY;
2742
2743 switch (*mode) {
2744 case IW_MODE_ADHOC:
2745 if (!priv->has_ibss && !priv->has_port3)
2746 err = -EOPNOTSUPP;
2747 break;
2748
2749 case IW_MODE_INFRA:
2750 break;
2751
2752 case IW_MODE_MONITOR:
2753 if (priv->broken_monitor && !force_monitor) {
2754 printk(KERN_WARNING "%s: Monitor mode support is "
2755 "buggy in this firmware, not enabling\n",
2756 dev->name);
2757 err = -EOPNOTSUPP;
2758 }
2759 break;
2760
2761 default:
2762 err = -EOPNOTSUPP;
2763 break;
2764 }
2765
2766 if (err == -EINPROGRESS) {
2767 priv->iw_mode = *mode;
2768 set_port_type(priv);
2769 }
2770
2771 orinoco_unlock(priv, &flags);
2772
2773 return err;
2774 }
2775
2776 static int orinoco_ioctl_getmode(struct net_device *dev,
2777 struct iw_request_info *info,
2778 u32 *mode,
2779 char *extra)
2780 {
2781 struct orinoco_private *priv = netdev_priv(dev);
2782
2783 *mode = priv->iw_mode;
2784 return 0;
2785 }
2786
2787 static int orinoco_ioctl_getiwrange(struct net_device *dev,
2788 struct iw_request_info *info,
2789 struct iw_point *rrq,
2790 char *extra)
2791 {
2792 struct orinoco_private *priv = netdev_priv(dev);
2793 int err = 0;
2794 struct iw_range *range = (struct iw_range *) extra;
2795 int numrates;
2796 int i, k;
2797
2798 TRACE_ENTER(dev->name);
2799
2800 rrq->length = sizeof(struct iw_range);
2801 memset(range, 0, sizeof(struct iw_range));
2802
2803 range->we_version_compiled = WIRELESS_EXT;
2804 range->we_version_source = 14;
2805
2806 /* Set available channels/frequencies */
2807 range->num_channels = NUM_CHANNELS;
2808 k = 0;
2809 for (i = 0; i < NUM_CHANNELS; i++) {
2810 if (priv->channel_mask & (1 << i)) {
2811 range->freq[k].i = i + 1;
2812 range->freq[k].m = channel_frequency[i] * 100000;
2813 range->freq[k].e = 1;
2814 k++;
2815 }
2816
2817 if (k >= IW_MAX_FREQUENCIES)
2818 break;
2819 }
2820 range->num_frequency = k;
2821 range->sensitivity = 3;
2822
2823 if (priv->has_wep) {
2824 range->max_encoding_tokens = ORINOCO_MAX_KEYS;
2825 range->encoding_size[0] = SMALL_KEY_SIZE;
2826 range->num_encoding_sizes = 1;
2827
2828 if (priv->has_big_wep) {
2829 range->encoding_size[1] = LARGE_KEY_SIZE;
2830 range->num_encoding_sizes = 2;
2831 }
2832 }
2833
2834 if ((priv->iw_mode == IW_MODE_ADHOC) && (priv->spy_number == 0)){
2835 /* Quality stats meaningless in ad-hoc mode */
2836 } else {
2837 range->max_qual.qual = 0x8b - 0x2f;
2838 range->max_qual.level = 0x2f - 0x95 - 1;
2839 range->max_qual.noise = 0x2f - 0x95 - 1;
2840 /* Need to get better values */
2841 range->avg_qual.qual = 0x24;
2842 range->avg_qual.level = 0xC2;
2843 range->avg_qual.noise = 0x9E;
2844 }
2845
2846 err = orinoco_hw_get_bitratelist(priv, &numrates,
2847 range->bitrate, IW_MAX_BITRATES);
2848 if (err)
2849 return err;
2850 range->num_bitrates = numrates;
2851
2852 /* Set an indication of the max TCP throughput in bit/s that we can
2853 * expect using this interface. May be use for QoS stuff...
2854 * Jean II */
2855 if (numrates > 2)
2856 range->throughput = 5 * 1000 * 1000; /* ~5 Mb/s */
2857 else
2858 range->throughput = 1.5 * 1000 * 1000; /* ~1.5 Mb/s */
2859
2860 range->min_rts = 0;
2861 range->max_rts = 2347;
2862 range->min_frag = 256;
2863 range->max_frag = 2346;
2864
2865 range->min_pmp = 0;
2866 range->max_pmp = 65535000;
2867 range->min_pmt = 0;
2868 range->max_pmt = 65535 * 1000; /* ??? */
2869 range->pmp_flags = IW_POWER_PERIOD;
2870 range->pmt_flags = IW_POWER_TIMEOUT;
2871 range->pm_capa = IW_POWER_PERIOD | IW_POWER_TIMEOUT | IW_POWER_UNICAST_R;
2872
2873 range->retry_capa = IW_RETRY_LIMIT | IW_RETRY_LIFETIME;
2874 range->retry_flags = IW_RETRY_LIMIT;
2875 range->r_time_flags = IW_RETRY_LIFETIME;
2876 range->min_retry = 0;
2877 range->max_retry = 65535; /* ??? */
2878 range->min_r_time = 0;
2879 range->max_r_time = 65535 * 1000; /* ??? */
2880
2881 TRACE_EXIT(dev->name);
2882
2883 return 0;
2884 }
2885
2886 static int orinoco_ioctl_setiwencode(struct net_device *dev,
2887 struct iw_request_info *info,
2888 struct iw_point *erq,
2889 char *keybuf)
2890 {
2891 struct orinoco_private *priv = netdev_priv(dev);
2892 int index = (erq->flags & IW_ENCODE_INDEX) - 1;
2893 int setindex = priv->tx_key;
2894 int enable = priv->wep_on;
2895 int restricted = priv->wep_restrict;
2896 u16 xlen = 0;
2897 int err = -EINPROGRESS; /* Call commit handler */
2898 unsigned long flags;
2899
2900 if (! priv->has_wep)
2901 return -EOPNOTSUPP;
2902
2903 if (erq->pointer) {
2904 /* We actually have a key to set - check its length */
2905 if (erq->length > LARGE_KEY_SIZE)
2906 return -E2BIG;
2907
2908 if ( (erq->length > SMALL_KEY_SIZE) && !priv->has_big_wep )
2909 return -E2BIG;
2910 }
2911
2912 if (orinoco_lock(priv, &flags) != 0)
2913 return -EBUSY;
2914
2915 if (erq->pointer) {
2916 if ((index < 0) || (index >= ORINOCO_MAX_KEYS))
2917 index = priv->tx_key;
2918
2919 /* Adjust key length to a supported value */
2920 if (erq->length > SMALL_KEY_SIZE) {
2921 xlen = LARGE_KEY_SIZE;
2922 } else if (erq->length > 0) {
2923 xlen = SMALL_KEY_SIZE;
2924 } else
2925 xlen = 0;
2926
2927 /* Switch on WEP if off */
2928 if ((!enable) && (xlen > 0)) {
2929 setindex = index;
2930 enable = 1;
2931 }
2932 } else {
2933 /* Important note : if the user do "iwconfig eth0 enc off",
2934 * we will arrive there with an index of -1. This is valid
2935 * but need to be taken care off... Jean II */
2936 if ((index < 0) || (index >= ORINOCO_MAX_KEYS)) {
2937 if((index != -1) || (erq->flags == 0)) {
2938 err = -EINVAL;
2939 goto out;
2940 }
2941 } else {
2942 /* Set the index : Check that the key is valid */
2943 if(priv->keys[index].len == 0) {
2944 err = -EINVAL;
2945 goto out;
2946 }
2947 setindex = index;
2948 }
2949 }
2950
2951 if (erq->flags & IW_ENCODE_DISABLED)
2952 enable = 0;
2953 if (erq->flags & IW_ENCODE_OPEN)
2954 restricted = 0;
2955 if (erq->flags & IW_ENCODE_RESTRICTED)
2956 restricted = 1;
2957
2958 if (erq->pointer) {
2959 priv->keys[index].len = cpu_to_le16(xlen);
2960 memset(priv->keys[index].data, 0,
2961 sizeof(priv->keys[index].data));
2962 memcpy(priv->keys[index].data, keybuf, erq->length);
2963 }
2964 priv->tx_key = setindex;
2965
2966 /* Try fast key change if connected and only keys are changed */
2967 if (priv->wep_on && enable && (priv->wep_restrict == restricted) &&
2968 netif_carrier_ok(dev)) {
2969 err = __orinoco_hw_setup_wepkeys(priv);
2970 /* No need to commit if successful */
2971 goto out;
2972 }
2973
2974 priv->wep_on = enable;
2975 priv->wep_restrict = restricted;
2976
2977 out:
2978 orinoco_unlock(priv, &flags);
2979
2980 return err;
2981 }
2982
2983 static int orinoco_ioctl_getiwencode(struct net_device *dev,
2984 struct iw_request_info *info,
2985 struct iw_point *erq,
2986 char *keybuf)
2987 {
2988 struct orinoco_private *priv = netdev_priv(dev);
2989 int index = (erq->flags & IW_ENCODE_INDEX) - 1;
2990 u16 xlen = 0;
2991 unsigned long flags;
2992
2993 if (! priv->has_wep)
2994 return -EOPNOTSUPP;
2995
2996 if (orinoco_lock(priv, &flags) != 0)
2997 return -EBUSY;
2998
2999 if ((index < 0) || (index >= ORINOCO_MAX_KEYS))
3000 index = priv->tx_key;
3001
3002 erq->flags = 0;
3003 if (! priv->wep_on)
3004 erq->flags |= IW_ENCODE_DISABLED;
3005 erq->flags |= index + 1;
3006
3007 if (priv->wep_restrict)
3008 erq->flags |= IW_ENCODE_RESTRICTED;
3009 else
3010 erq->flags |= IW_ENCODE_OPEN;
3011
3012 xlen = le16_to_cpu(priv->keys[index].len);
3013
3014 erq->length = xlen;
3015
3016 memcpy(keybuf, priv->keys[index].data, ORINOCO_MAX_KEY_SIZE);
3017
3018 orinoco_unlock(priv, &flags);
3019 return 0;
3020 }
3021
3022 static int orinoco_ioctl_setessid(struct net_device *dev,
3023 struct iw_request_info *info,
3024 struct iw_point *erq,
3025 char *essidbuf)
3026 {
3027 struct orinoco_private *priv = netdev_priv(dev);
3028 unsigned long flags;
3029
3030 /* Note : ESSID is ignored in Ad-Hoc demo mode, but we can set it
3031 * anyway... - Jean II */
3032
3033 /* Hum... Should not use Wireless Extension constant (may change),
3034 * should use our own... - Jean II */
3035 if (erq->length > IW_ESSID_MAX_SIZE)
3036 return -E2BIG;
3037
3038 if (orinoco_lock(priv, &flags) != 0)
3039 return -EBUSY;
3040
3041 /* NULL the string (for NULL termination & ESSID = ANY) - Jean II */
3042 memset(priv->desired_essid, 0, sizeof(priv->desired_essid));
3043
3044 /* If not ANY, get the new ESSID */
3045 if (erq->flags) {
3046 memcpy(priv->desired_essid, essidbuf, erq->length);
3047 }
3048
3049 orinoco_unlock(priv, &flags);
3050
3051 return -EINPROGRESS; /* Call commit handler */
3052 }
3053
3054 static int orinoco_ioctl_getessid(struct net_device *dev,
3055 struct iw_request_info *info,
3056 struct iw_point *erq,
3057 char *essidbuf)
3058 {
3059 struct orinoco_private *priv = netdev_priv(dev);
3060 int active;
3061 int err = 0;
3062 unsigned long flags;
3063
3064 TRACE_ENTER(dev->name);
3065
3066 if (netif_running(dev)) {
3067 err = orinoco_hw_get_essid(priv, &active, essidbuf);
3068 if (err)
3069 return err;
3070 } else {
3071 if (orinoco_lock(priv, &flags) != 0)
3072 return -EBUSY;
3073 memcpy(essidbuf, priv->desired_essid, IW_ESSID_MAX_SIZE + 1);
3074 orinoco_unlock(priv, &flags);
3075 }
3076
3077 erq->flags = 1;
3078 erq->length = strlen(essidbuf) + 1;
3079
3080 TRACE_EXIT(dev->name);
3081
3082 return 0;
3083 }
3084
3085 static int orinoco_ioctl_setnick(struct net_device *dev,
3086 struct iw_request_info *info,
3087 struct iw_point *nrq,
3088 char *nickbuf)
3089 {
3090 struct orinoco_private *priv = netdev_priv(dev);
3091 unsigned long flags;
3092
3093 if (nrq->length > IW_ESSID_MAX_SIZE)
3094 return -E2BIG;
3095
3096 if (orinoco_lock(priv, &flags) != 0)
3097 return -EBUSY;
3098
3099 memset(priv->nick, 0, sizeof(priv->nick));
3100 memcpy(priv->nick, nickbuf, nrq->length);
3101
3102 orinoco_unlock(priv, &flags);
3103
3104 return -EINPROGRESS; /* Call commit handler */
3105 }
3106
3107 static int orinoco_ioctl_getnick(struct net_device *dev,
3108 struct iw_request_info *info,
3109 struct iw_point *nrq,
3110 char *nickbuf)
3111 {
3112 struct orinoco_private *priv = netdev_priv(dev);
3113 unsigned long flags;
3114
3115 if (orinoco_lock(priv, &flags) != 0)
3116 return -EBUSY;
3117
3118 memcpy(nickbuf, priv->nick, IW_ESSID_MAX_SIZE+1);
3119 orinoco_unlock(priv, &flags);
3120
3121 nrq->length = strlen(nickbuf)+1;
3122
3123 return 0;
3124 }
3125
3126 static int orinoco_ioctl_setfreq(struct net_device *dev,
3127 struct iw_request_info *info,
3128 struct iw_freq *frq,
3129 char *extra)
3130 {
3131 struct orinoco_private *priv = netdev_priv(dev);
3132 int chan = -1;
3133 unsigned long flags;
3134 int err = -EINPROGRESS; /* Call commit handler */
3135
3136 /* In infrastructure mode the AP sets the channel */
3137 if (priv->iw_mode == IW_MODE_INFRA)
3138 return -EBUSY;
3139
3140 if ( (frq->e == 0) && (frq->m <= 1000) ) {
3141 /* Setting by channel number */
3142 chan = frq->m;
3143 } else {
3144 /* Setting by frequency - search the table */
3145 int mult = 1;
3146 int i;
3147
3148 for (i = 0; i < (6 - frq->e); i++)
3149 mult *= 10;
3150
3151 for (i = 0; i < NUM_CHANNELS; i++)
3152 if (frq->m == (channel_frequency[i] * mult))
3153 chan = i+1;
3154 }
3155
3156 if ( (chan < 1) || (chan > NUM_CHANNELS) ||
3157 ! (priv->channel_mask & (1 << (chan-1)) ) )
3158 return -EINVAL;
3159
3160 if (orinoco_lock(priv, &flags) != 0)
3161 return -EBUSY;
3162
3163 priv->channel = chan;
3164 if (priv->iw_mode == IW_MODE_MONITOR) {
3165 /* Fast channel change - no commit if successful */
3166 hermes_t *hw = &priv->hw;
3167 err = hermes_docmd_wait(hw, HERMES_CMD_TEST |
3168 HERMES_TEST_SET_CHANNEL,
3169 chan, NULL);
3170 }
3171 orinoco_unlock(priv, &flags);
3172
3173 return err;
3174 }
3175
3176 static int orinoco_ioctl_getfreq(struct net_device *dev,
3177 struct iw_request_info *info,
3178 struct iw_freq *frq,
3179 char *extra)
3180 {
3181 struct orinoco_private *priv = netdev_priv(dev);
3182 int tmp;
3183
3184 /* Locking done in there */
3185 tmp = orinoco_hw_get_freq(priv);
3186 if (tmp < 0) {
3187 return tmp;
3188 }
3189
3190 frq->m = tmp;
3191 frq->e = 1;
3192
3193 return 0;
3194 }
3195
3196 static int orinoco_ioctl_getsens(struct net_device *dev,
3197 struct iw_request_info *info,
3198 struct iw_param *srq,
3199 char *extra)
3200 {
3201 struct orinoco_private *priv = netdev_priv(dev);
3202 hermes_t *hw = &priv->hw;
3203 u16 val;
3204 int err;
3205 unsigned long flags;
3206
3207 if (!priv->has_sensitivity)
3208 return -EOPNOTSUPP;
3209
3210 if (orinoco_lock(priv, &flags) != 0)
3211 return -EBUSY;
3212 err = hermes_read_wordrec(hw, USER_BAP,
3213 HERMES_RID_CNFSYSTEMSCALE, &val);
3214 orinoco_unlock(priv, &flags);
3215
3216 if (err)
3217 return err;
3218
3219 srq->value = val;
3220 srq->fixed = 0; /* auto */
3221
3222 return 0;
3223 }
3224
3225 static int orinoco_ioctl_setsens(struct net_device *dev,
3226 struct iw_request_info *info,
3227 struct iw_param *srq,
3228 char *extra)
3229 {
3230 struct orinoco_private *priv = netdev_priv(dev);
3231 int val = srq->value;
3232 unsigned long flags;
3233
3234 if (!priv->has_sensitivity)
3235 return -EOPNOTSUPP;
3236
3237 if ((val < 1) || (val > 3))
3238 return -EINVAL;
3239
3240 if (orinoco_lock(priv, &flags) != 0)
3241 return -EBUSY;
3242 priv->ap_density = val;
3243 orinoco_unlock(priv, &flags);
3244
3245 return -EINPROGRESS; /* Call commit handler */
3246 }
3247
3248 static int orinoco_ioctl_setrts(struct net_device *dev,
3249 struct iw_request_info *info,
3250 struct iw_param *rrq,
3251 char *extra)
3252 {
3253 struct orinoco_private *priv = netdev_priv(dev);
3254 int val = rrq->value;
3255 unsigned long flags;
3256
3257 if (rrq->disabled)
3258 val = 2347;
3259
3260 if ( (val < 0) || (val > 2347) )
3261 return -EINVAL;
3262
3263 if (orinoco_lock(priv, &flags) != 0)
3264 return -EBUSY;
3265
3266 priv->rts_thresh = val;
3267 orinoco_unlock(priv, &flags);
3268
3269 return -EINPROGRESS; /* Call commit handler */
3270 }
3271
3272 static int orinoco_ioctl_getrts(struct net_device *dev,
3273 struct iw_request_info *info,
3274 struct iw_param *rrq,
3275 char *extra)
3276 {
3277 struct orinoco_private *priv = netdev_priv(dev);
3278
3279 rrq->value = priv->rts_thresh;
3280 rrq->disabled = (rrq->value == 2347);
3281 rrq->fixed = 1;
3282
3283 return 0;
3284 }
3285
3286 static int orinoco_ioctl_setfrag(struct net_device *dev,
3287 struct iw_request_info *info,
3288 struct iw_param *frq,
3289 char *extra)
3290 {
3291 struct orinoco_private *priv = netdev_priv(dev);
3292 int err = -EINPROGRESS; /* Call commit handler */
3293 unsigned long flags;
3294
3295 if (orinoco_lock(priv, &flags) != 0)
3296 return -EBUSY;
3297
3298 if (priv->has_mwo) {
3299 if (frq->disabled)
3300 priv->mwo_robust = 0;
3301 else {
3302 if (frq->fixed)
3303 printk(KERN_WARNING "%s: Fixed fragmentation is "
3304 "not supported on this firmware. "
3305 "Using MWO robust instead.\n", dev->name);
3306 priv->mwo_robust = 1;
3307 }
3308 } else {
3309 if (frq->disabled)
3310 priv->frag_thresh = 2346;
3311 else {
3312 if ( (frq->value < 256) || (frq->value > 2346) )
3313 err = -EINVAL;
3314 else
3315 priv->frag_thresh = frq->value & ~0x1; /* must be even */
3316 }
3317 }
3318
3319 orinoco_unlock(priv, &flags);
3320
3321 return err;
3322 }
3323
3324 static int orinoco_ioctl_getfrag(struct net_device *dev,
3325 struct iw_request_info *info,
3326 struct iw_param *frq,
3327 char *extra)
3328 {
3329 struct orinoco_private *priv = netdev_priv(dev);
3330 hermes_t *hw = &priv->hw;
3331 int err;
3332 u16 val;
3333 unsigned long flags;
3334
3335 if (orinoco_lock(priv, &flags) != 0)
3336 return -EBUSY;
3337
3338 if (priv->has_mwo) {
3339 err = hermes_read_wordrec(hw, USER_BAP,
3340 HERMES_RID_CNFMWOROBUST_AGERE,
3341 &val);
3342 if (err)
3343 val = 0;
3344
3345 frq->value = val ? 2347 : 0;
3346 frq->disabled = ! val;
3347 frq->fixed = 0;
3348 } else {
3349 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFFRAGMENTATIONTHRESHOLD,
3350 &val);
3351 if (err)
3352 val = 0;
3353
3354 frq->value = val;
3355 frq->disabled = (val >= 2346);
3356 frq->fixed = 1;
3357 }
3358
3359 orinoco_unlock(priv, &flags);
3360
3361 return err;
3362 }
3363
3364 static int orinoco_ioctl_setrate(struct net_device *dev,
3365 struct iw_request_info *info,
3366 struct iw_param *rrq,
3367 char *extra)
3368 {
3369 struct orinoco_private *priv = netdev_priv(dev);
3370 int ratemode = -1;
3371 int bitrate; /* 100s of kilobits */
3372 int i;
3373 unsigned long flags;
3374
3375 /* As the user space doesn't know our highest rate, it uses -1
3376 * to ask us to set the highest rate. Test it using "iwconfig
3377 * ethX rate auto" - Jean II */
3378 if (rrq->value == -1)
3379 bitrate = 110;
3380 else {
3381 if (rrq->value % 100000)
3382 return -EINVAL;
3383 bitrate = rrq->value / 100000;
3384 }
3385
3386 if ( (bitrate != 10) && (bitrate != 20) &&
3387 (bitrate != 55) && (bitrate != 110) )
3388 return -EINVAL;
3389
3390 for (i = 0; i < BITRATE_TABLE_SIZE; i++)
3391 if ( (bitrate_table[i].bitrate == bitrate) &&
3392 (bitrate_table[i].automatic == ! rrq->fixed) ) {
3393 ratemode = i;
3394 break;
3395 }
3396
3397 if (ratemode == -1)
3398 return -EINVAL;
3399
3400 if (orinoco_lock(priv, &flags) != 0)
3401 return -EBUSY;
3402 priv->bitratemode = ratemode;
3403 orinoco_unlock(priv, &flags);
3404
3405 return -EINPROGRESS;
3406 }
3407
3408 static int orinoco_ioctl_getrate(struct net_device *dev,
3409 struct iw_request_info *info,
3410 struct iw_param *rrq,
3411 char *extra)
3412 {
3413 struct orinoco_private *priv = netdev_priv(dev);
3414 hermes_t *hw = &priv->hw;
3415 int err = 0;
3416 int ratemode;
3417 int i;
3418 u16 val;
3419 unsigned long flags;
3420
3421 if (orinoco_lock(priv, &flags) != 0)
3422 return -EBUSY;
3423
3424 ratemode = priv->bitratemode;
3425
3426 BUG_ON((ratemode < 0) || (ratemode >= BITRATE_TABLE_SIZE));
3427
3428 rrq->value = bitrate_table[ratemode].bitrate * 100000;
3429 rrq->fixed = ! bitrate_table[ratemode].automatic;
3430 rrq->disabled = 0;
3431
3432 /* If the interface is running we try to find more about the
3433 current mode */
3434 if (netif_running(dev)) {
3435 err = hermes_read_wordrec(hw, USER_BAP,
3436 HERMES_RID_CURRENTTXRATE, &val);
3437 if (err)
3438 goto out;
3439
3440 switch (priv->firmware_type) {
3441 case FIRMWARE_TYPE_AGERE: /* Lucent style rate */
3442 /* Note : in Lucent firmware, the return value of
3443 * HERMES_RID_CURRENTTXRATE is the bitrate in Mb/s,
3444 * and therefore is totally different from the
3445 * encoding of HERMES_RID_CNFTXRATECONTROL.
3446 * Don't forget that 6Mb/s is really 5.5Mb/s */
3447 if (val == 6)
3448 rrq->value = 5500000;
3449 else
3450 rrq->value = val * 1000000;
3451 break;
3452 case FIRMWARE_TYPE_INTERSIL: /* Intersil style rate */
3453 case FIRMWARE_TYPE_SYMBOL: /* Symbol style rate */
3454 for (i = 0; i < BITRATE_TABLE_SIZE; i++)
3455 if (bitrate_table[i].intersil_txratectrl == val) {
3456 ratemode = i;
3457 break;
3458 }
3459 if (i >= BITRATE_TABLE_SIZE)
3460 printk(KERN_INFO "%s: Unable to determine current bitrate (0x%04hx)\n",
3461 dev->name, val);
3462
3463 rrq->value = bitrate_table[ratemode].bitrate * 100000;
3464 break;
3465 default:
3466 BUG();
3467 }
3468 }
3469
3470 out:
3471 orinoco_unlock(priv, &flags);
3472
3473 return err;
3474 }
3475
3476 static int orinoco_ioctl_setpower(struct net_device *dev,
3477 struct iw_request_info *info,
3478 struct iw_param *prq,
3479 char *extra)
3480 {
3481 struct orinoco_private *priv = netdev_priv(dev);
3482 int err = -EINPROGRESS; /* Call commit handler */
3483 unsigned long flags;
3484
3485 if (orinoco_lock(priv, &flags) != 0)
3486 return -EBUSY;
3487
3488 if (prq->disabled) {
3489 priv->pm_on = 0;
3490 } else {
3491 switch (prq->flags & IW_POWER_MODE) {
3492 case IW_POWER_UNICAST_R:
3493 priv->pm_mcast = 0;
3494 priv->pm_on = 1;
3495 break;
3496 case IW_POWER_ALL_R:
3497 priv->pm_mcast = 1;
3498 priv->pm_on = 1;
3499 break;
3500 case IW_POWER_ON:
3501 /* No flags : but we may have a value - Jean II */
3502 break;
3503 default:
3504 err = -EINVAL;
3505 }
3506 if (err)
3507 goto out;
3508
3509 if (prq->flags & IW_POWER_TIMEOUT) {
3510 priv->pm_on = 1;
3511 priv->pm_timeout = prq->value / 1000;
3512 }
3513 if (prq->flags & IW_POWER_PERIOD) {
3514 priv->pm_on = 1;
3515 priv->pm_period = prq->value / 1000;
3516 }
3517 /* It's valid to not have a value if we are just toggling
3518 * the flags... Jean II */
3519 if(!priv->pm_on) {
3520 err = -EINVAL;
3521 goto out;
3522 }
3523 }
3524
3525 out:
3526 orinoco_unlock(priv, &flags);
3527
3528 return err;
3529 }
3530
3531 static int orinoco_ioctl_getpower(struct net_device *dev,
3532 struct iw_request_info *info,
3533 struct iw_param *prq,
3534 char *extra)
3535 {
3536 struct orinoco_private *priv = netdev_priv(dev);
3537 hermes_t *hw = &priv->hw;
3538 int err = 0;
3539 u16 enable, period, timeout, mcast;
3540 unsigned long flags;
3541
3542 if (orinoco_lock(priv, &flags) != 0)
3543 return -EBUSY;
3544
3545 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFPMENABLED, &enable);
3546 if (err)
3547 goto out;
3548
3549 err = hermes_read_wordrec(hw, USER_BAP,
3550 HERMES_RID_CNFMAXSLEEPDURATION, &period);
3551 if (err)
3552 goto out;
3553
3554 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFPMHOLDOVERDURATION, &timeout);
3555 if (err)
3556 goto out;
3557
3558 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFMULTICASTRECEIVE, &mcast);
3559 if (err)
3560 goto out;
3561
3562 prq->disabled = !enable;
3563 /* Note : by default, display the period */
3564 if ((prq->flags & IW_POWER_TYPE) == IW_POWER_TIMEOUT) {
3565 prq->flags = IW_POWER_TIMEOUT;
3566 prq->value = timeout * 1000;
3567 } else {
3568 prq->flags = IW_POWER_PERIOD;
3569 prq->value = period * 1000;
3570 }
3571 if (mcast)
3572 prq->flags |= IW_POWER_ALL_R;
3573 else
3574 prq->flags |= IW_POWER_UNICAST_R;
3575
3576 out:
3577 orinoco_unlock(priv, &flags);
3578
3579 return err;
3580 }
3581
3582 static int orinoco_ioctl_getretry(struct net_device *dev,
3583 struct iw_request_info *info,
3584 struct iw_param *rrq,
3585 char *extra)
3586 {
3587 struct orinoco_private *priv = netdev_priv(dev);
3588 hermes_t *hw = &priv->hw;
3589 int err = 0;
3590 u16 short_limit, long_limit, lifetime;
3591 unsigned long flags;
3592
3593 if (orinoco_lock(priv, &flags) != 0)
3594 return -EBUSY;
3595
3596 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_SHORTRETRYLIMIT,
3597 &short_limit);
3598 if (err)
3599 goto out;
3600
3601 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_LONGRETRYLIMIT,
3602 &long_limit);
3603 if (err)
3604 goto out;
3605
3606 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_MAXTRANSMITLIFETIME,
3607 &lifetime);
3608 if (err)
3609 goto out;
3610
3611 rrq->disabled = 0; /* Can't be disabled */
3612
3613 /* Note : by default, display the retry number */
3614 if ((rrq->flags & IW_RETRY_TYPE) == IW_RETRY_LIFETIME) {
3615 rrq->flags = IW_RETRY_LIFETIME;
3616 rrq->value = lifetime * 1000; /* ??? */
3617 } else {
3618 /* By default, display the min number */
3619 if ((rrq->flags & IW_RETRY_MAX)) {
3620 rrq->flags = IW_RETRY_LIMIT | IW_RETRY_MAX;
3621 rrq->value = long_limit;
3622 } else {
3623 rrq->flags = IW_RETRY_LIMIT;
3624 rrq->value = short_limit;
3625 if(short_limit != long_limit)
3626 rrq->flags |= IW_RETRY_MIN;
3627 }
3628 }
3629
3630 out:
3631 orinoco_unlock(priv, &flags);
3632
3633 return err;
3634 }
3635
3636 static int orinoco_ioctl_reset(struct net_device *dev,
3637 struct iw_request_info *info,
3638 void *wrqu,
3639 char *extra)
3640 {
3641 struct orinoco_private *priv = netdev_priv(dev);
3642
3643 if (! capable(CAP_NET_ADMIN))
3644 return -EPERM;
3645
3646 if (info->cmd == (SIOCIWFIRSTPRIV + 0x1)) {
3647 printk(KERN_DEBUG "%s: Forcing reset!\n", dev->name);
3648
3649 /* Firmware reset */
3650 orinoco_reset(dev);
3651 } else {
3652 printk(KERN_DEBUG "%s: Force scheduling reset!\n", dev->name);
3653
3654 schedule_work(&priv->reset_work);
3655 }
3656
3657 return 0;
3658 }
3659
3660 static int orinoco_ioctl_setibssport(struct net_device *dev,
3661 struct iw_request_info *info,
3662 void *wrqu,
3663 char *extra)
3664
3665 {
3666 struct orinoco_private *priv = netdev_priv(dev);
3667 int val = *( (int *) extra );
3668 unsigned long flags;
3669
3670 if (orinoco_lock(priv, &flags) != 0)
3671 return -EBUSY;
3672
3673 priv->ibss_port = val ;
3674
3675 /* Actually update the mode we are using */
3676 set_port_type(priv);
3677
3678 orinoco_unlock(priv, &flags);
3679 return -EINPROGRESS; /* Call commit handler */
3680 }
3681
3682 static int orinoco_ioctl_getibssport(struct net_device *dev,
3683 struct iw_request_info *info,
3684 void *wrqu,
3685 char *extra)
3686 {
3687 struct orinoco_private *priv = netdev_priv(dev);
3688 int *val = (int *) extra;
3689
3690 *val = priv->ibss_port;
3691 return 0;
3692 }
3693
3694 static int orinoco_ioctl_setport3(struct net_device *dev,
3695 struct iw_request_info *info,
3696 void *wrqu,
3697 char *extra)
3698 {
3699 struct orinoco_private *priv = netdev_priv(dev);
3700 int val = *( (int *) extra );
3701 int err = 0;
3702 unsigned long flags;
3703
3704 if (orinoco_lock(priv, &flags) != 0)
3705 return -EBUSY;
3706
3707 switch (val) {
3708 case 0: /* Try to do IEEE ad-hoc mode */
3709 if (! priv->has_ibss) {
3710 err = -EINVAL;
3711 break;
3712 }
3713 priv->prefer_port3 = 0;
3714
3715 break;
3716
3717 case 1: /* Try to do Lucent proprietary ad-hoc mode */
3718 if (! priv->has_port3) {
3719 err = -EINVAL;
3720 break;
3721 }
3722 priv->prefer_port3 = 1;
3723 break;
3724
3725 default:
3726 err = -EINVAL;
3727 }
3728
3729 if (! err) {
3730 /* Actually update the mode we are using */
3731 set_port_type(priv);
3732 err = -EINPROGRESS;
3733 }
3734
3735 orinoco_unlock(priv, &flags);
3736
3737 return err;
3738 }
3739
3740 static int orinoco_ioctl_getport3(struct net_device *dev,
3741 struct iw_request_info *info,
3742 void *wrqu,
3743 char *extra)
3744 {
3745 struct orinoco_private *priv = netdev_priv(dev);
3746 int *val = (int *) extra;
3747
3748 *val = priv->prefer_port3;
3749 return 0;
3750 }
3751
3752 static int orinoco_ioctl_setpreamble(struct net_device *dev,
3753 struct iw_request_info *info,
3754 void *wrqu,
3755 char *extra)
3756 {
3757 struct orinoco_private *priv = netdev_priv(dev);
3758 unsigned long flags;
3759 int val;
3760
3761 if (! priv->has_preamble)
3762 return -EOPNOTSUPP;
3763
3764 /* 802.11b has recently defined some short preamble.
3765 * Basically, the Phy header has been reduced in size.
3766 * This increase performance, especially at high rates
3767 * (the preamble is transmitted at 1Mb/s), unfortunately
3768 * this give compatibility troubles... - Jean II */
3769 val = *( (int *) extra );
3770
3771 if (orinoco_lock(priv, &flags) != 0)
3772 return -EBUSY;
3773
3774 if (val)
3775 priv->preamble = 1;
3776 else
3777 priv->preamble = 0;
3778
3779 orinoco_unlock(priv, &flags);
3780
3781 return -EINPROGRESS; /* Call commit handler */
3782 }
3783
3784 static int orinoco_ioctl_getpreamble(struct net_device *dev,
3785 struct iw_request_info *info,
3786 void *wrqu,
3787 char *extra)
3788 {
3789 struct orinoco_private *priv = netdev_priv(dev);
3790 int *val = (int *) extra;
3791
3792 if (! priv->has_preamble)
3793 return -EOPNOTSUPP;
3794
3795 *val = priv->preamble;
3796 return 0;
3797 }
3798
3799 /* ioctl interface to hermes_read_ltv()
3800 * To use with iwpriv, pass the RID as the token argument, e.g.
3801 * iwpriv get_rid [0xfc00]
3802 * At least Wireless Tools 25 is required to use iwpriv.
3803 * For Wireless Tools 25 and 26 append "dummy" are the end. */
3804 static int orinoco_ioctl_getrid(struct net_device *dev,
3805 struct iw_request_info *info,
3806 struct iw_point *data,
3807 char *extra)
3808 {
3809 struct orinoco_private *priv = netdev_priv(dev);
3810 hermes_t *hw = &priv->hw;
3811 int rid = data->flags;
3812 u16 length;
3813 int err;
3814 unsigned long flags;
3815
3816 /* It's a "get" function, but we don't want users to access the
3817 * WEP key and other raw firmware data */
3818 if (! capable(CAP_NET_ADMIN))
3819 return -EPERM;
3820
3821 if (rid < 0xfc00 || rid > 0xffff)
3822 return -EINVAL;
3823
3824 if (orinoco_lock(priv, &flags) != 0)
3825 return -EBUSY;
3826
3827 err = hermes_read_ltv(hw, USER_BAP, rid, MAX_RID_LEN, &length,
3828 extra);
3829 if (err)
3830 goto out;
3831
3832 data->length = min_t(u16, HERMES_RECLEN_TO_BYTES(length),
3833 MAX_RID_LEN);
3834
3835 out:
3836 orinoco_unlock(priv, &flags);
3837 return err;
3838 }
3839
3840 /* Spy is used for link quality/strength measurements in Ad-Hoc mode
3841 * Jean II */
3842 static int orinoco_ioctl_setspy(struct net_device *dev,
3843 struct iw_request_info *info,
3844 struct iw_point *srq,
3845 char *extra)
3846
3847 {
3848 struct orinoco_private *priv = netdev_priv(dev);
3849 struct sockaddr *address = (struct sockaddr *) extra;
3850 int number = srq->length;
3851 int i;
3852 unsigned long flags;
3853
3854 /* Make sure nobody mess with the structure while we do */
3855 if (orinoco_lock(priv, &flags) != 0)
3856 return -EBUSY;
3857
3858 /* orinoco_lock() doesn't disable interrupts, so make sure the
3859 * interrupt rx path don't get confused while we copy */
3860 priv->spy_number = 0;
3861
3862 if (number > 0) {
3863 /* Extract the addresses */
3864 for (i = 0; i < number; i++)
3865 memcpy(priv->spy_address[i], address[i].sa_data,
3866 ETH_ALEN);
3867 /* Reset stats */
3868 memset(priv->spy_stat, 0,
3869 sizeof(struct iw_quality) * IW_MAX_SPY);
3870 /* Set number of addresses */
3871 priv->spy_number = number;
3872 }
3873
3874 /* Now, let the others play */
3875 orinoco_unlock(priv, &flags);
3876
3877 /* Do NOT call commit handler */
3878 return 0;
3879 }
3880
3881 static int orinoco_ioctl_getspy(struct net_device *dev,
3882 struct iw_request_info *info,
3883 struct iw_point *srq,
3884 char *extra)
3885 {
3886 struct orinoco_private *priv = netdev_priv(dev);
3887 struct sockaddr *address = (struct sockaddr *) extra;
3888 int number;
3889 int i;
3890 unsigned long flags;
3891
3892 if (orinoco_lock(priv, &flags) != 0)
3893 return -EBUSY;
3894
3895 number = priv->spy_number;
3896 /* Create address struct */
3897 for (i = 0; i < number; i++) {
3898 memcpy(address[i].sa_data, priv->spy_address[i], ETH_ALEN);
3899 address[i].sa_family = AF_UNIX;
3900 }
3901 if (number > 0) {
3902 /* Create address struct */
3903 for (i = 0; i < number; i++) {
3904 memcpy(address[i].sa_data, priv->spy_address[i],
3905 ETH_ALEN);
3906 address[i].sa_family = AF_UNIX;
3907 }
3908 /* Copy stats */
3909 /* In theory, we should disable irqs while copying the stats
3910 * because the rx path might update it in the middle...
3911 * Bah, who care ? - Jean II */
3912 memcpy(extra + (sizeof(struct sockaddr) * number),
3913 priv->spy_stat, sizeof(struct iw_quality) * number);
3914 }
3915 /* Reset updated flags. */
3916 for (i = 0; i < number; i++)
3917 priv->spy_stat[i].updated = 0;
3918
3919 orinoco_unlock(priv, &flags);
3920
3921 srq->length = number;
3922
3923 return 0;
3924 }
3925
3926 /* Trigger a scan (look for other cells in the vicinity */
3927 static int orinoco_ioctl_setscan(struct net_device *dev,
3928 struct iw_request_info *info,
3929 struct iw_param *srq,
3930 char *extra)
3931 {
3932 struct orinoco_private *priv = netdev_priv(dev);
3933 hermes_t *hw = &priv->hw;
3934 int err = 0;
3935 unsigned long flags;
3936
3937 /* Note : you may have realised that, as this is a SET operation,
3938 * this is priviledged and therefore a normal user can't
3939 * perform scanning.
3940 * This is not an error, while the device perform scanning,
3941 * traffic doesn't flow, so it's a perfect DoS...
3942 * Jean II */
3943
3944 if (orinoco_lock(priv, &flags) != 0)
3945 return -EBUSY;
3946
3947 /* Scanning with port 0 disabled would fail */
3948 if (!netif_running(dev)) {
3949 err = -ENETDOWN;
3950 goto out;
3951 }
3952
3953 /* In monitor mode, the scan results are always empty.
3954 * Probe responses are passed to the driver as received
3955 * frames and could be processed in software. */
3956 if (priv->iw_mode == IW_MODE_MONITOR) {
3957 err = -EOPNOTSUPP;
3958 goto out;
3959 }
3960
3961 /* Note : because we don't lock out the irq handler, the way
3962 * we access scan variables in priv is critical.
3963 * o scan_inprogress : not touched by irq handler
3964 * o scan_mode : not touched by irq handler
3965 * o scan_result : irq is strict producer, non-irq is strict
3966 * consumer.
3967 * o scan_len : synchronised with scan_result
3968 * Before modifying anything on those variables, please think hard !
3969 * Jean II */
3970
3971 /* If there is still some left-over scan results, get rid of it */
3972 if (priv->scan_result != NULL) {
3973 /* What's likely is that a client did crash or was killed
3974 * between triggering the scan request and reading the
3975 * results, so we need to reset everything.
3976 * Some clients that are too slow may suffer from that...
3977 * Jean II */
3978 kfree(priv->scan_result);
3979 priv->scan_result = NULL;
3980 }
3981
3982 /* Save flags */
3983 priv->scan_mode = srq->flags;
3984
3985 /* Always trigger scanning, even if it's in progress.
3986 * This way, if the info frame get lost, we will recover somewhat
3987 * gracefully - Jean II */
3988
3989 if (priv->has_hostscan) {
3990 switch (priv->firmware_type) {
3991 case FIRMWARE_TYPE_SYMBOL:
3992 err = hermes_write_wordrec(hw, USER_BAP,
3993 HERMES_RID_CNFHOSTSCAN_SYMBOL,
3994 HERMES_HOSTSCAN_SYMBOL_ONCE |
3995 HERMES_HOSTSCAN_SYMBOL_BCAST);
3996 break;
3997 case FIRMWARE_TYPE_INTERSIL: {
3998 u16 req[3];
3999
4000 req[0] = cpu_to_le16(0x3fff); /* All channels */
4001 req[1] = cpu_to_le16(0x0001); /* rate 1 Mbps */
4002 req[2] = 0; /* Any ESSID */
4003 err = HERMES_WRITE_RECORD(hw, USER_BAP,
4004 HERMES_RID_CNFHOSTSCAN, &req);
4005 }
4006 break;
4007 case FIRMWARE_TYPE_AGERE:
4008 err = hermes_write_wordrec(hw, USER_BAP,
4009 HERMES_RID_CNFSCANSSID_AGERE,
4010 0); /* Any ESSID */
4011 if (err)
4012 break;
4013
4014 err = hermes_inquire(hw, HERMES_INQ_SCAN);
4015 break;
4016 }
4017 } else
4018 err = hermes_inquire(hw, HERMES_INQ_SCAN);
4019
4020 /* One more client */
4021 if (! err)
4022 priv->scan_inprogress = 1;
4023
4024 out:
4025 orinoco_unlock(priv, &flags);
4026 return err;
4027 }
4028
4029 /* Translate scan data returned from the card to a card independant
4030 * format that the Wireless Tools will understand - Jean II
4031 * Return message length or -errno for fatal errors */
4032 static inline int orinoco_translate_scan(struct net_device *dev,
4033 char *buffer,
4034 char *scan,
4035 int scan_len)
4036 {
4037 struct orinoco_private *priv = netdev_priv(dev);
4038 int offset; /* In the scan data */
4039 union hermes_scan_info *atom;
4040 int atom_len;
4041 u16 capabilities;
4042 u16 channel;
4043 struct iw_event iwe; /* Temporary buffer */
4044 char * current_ev = buffer;
4045 char * end_buf = buffer + IW_SCAN_MAX_DATA;
4046
4047 switch (priv->firmware_type) {
4048 case FIRMWARE_TYPE_AGERE:
4049 atom_len = sizeof(struct agere_scan_apinfo);
4050 offset = 0;
4051 break;
4052 case FIRMWARE_TYPE_SYMBOL:
4053 /* Lack of documentation necessitates this hack.
4054 * Different firmwares have 68 or 76 byte long atoms.
4055 * We try modulo first. If the length divides by both,
4056 * we check what would be the channel in the second
4057 * frame for a 68-byte atom. 76-byte atoms have 0 there.
4058 * Valid channel cannot be 0. */
4059 if (scan_len % 76)
4060 atom_len = 68;
4061 else if (scan_len % 68)
4062 atom_len = 76;
4063 else if (scan_len >= 1292 && scan[68] == 0)
4064 atom_len = 76;
4065 else
4066 atom_len = 68;
4067 offset = 0;
4068 break;
4069 case FIRMWARE_TYPE_INTERSIL:
4070 offset = 4;
4071 if (priv->has_hostscan) {
4072 atom_len = le16_to_cpup((u16 *)scan);
4073 /* Sanity check for atom_len */
4074 if (atom_len < sizeof(struct prism2_scan_apinfo)) {
4075 printk(KERN_ERR "%s: Invalid atom_len in scan data: %d\n",
4076 dev->name, atom_len);
4077 return -EIO;
4078 }
4079 } else
4080 atom_len = offsetof(struct prism2_scan_apinfo, atim);
4081 break;
4082 default:
4083 return -EOPNOTSUPP;
4084 }
4085
4086 /* Check that we got an whole number of atoms */
4087 if ((scan_len - offset) % atom_len) {
4088 printk(KERN_ERR "%s: Unexpected scan data length %d, "
4089 "atom_len %d, offset %d\n", dev->name, scan_len,
4090 atom_len, offset);
4091 return -EIO;
4092 }
4093
4094 /* Read the entries one by one */
4095 for (; offset + atom_len <= scan_len; offset += atom_len) {
4096 /* Get next atom */
4097 atom = (union hermes_scan_info *) (scan + offset);
4098
4099 /* First entry *MUST* be the AP MAC address */
4100 iwe.cmd = SIOCGIWAP;
4101 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
4102 memcpy(iwe.u.ap_addr.sa_data, atom->a.bssid, ETH_ALEN);
4103 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_ADDR_LEN);
4104
4105 /* Other entries will be displayed in the order we give them */
4106
4107 /* Add the ESSID */
4108 iwe.u.data.length = le16_to_cpu(atom->a.essid_len);
4109 if (iwe.u.data.length > 32)
4110 iwe.u.data.length = 32;
4111 iwe.cmd = SIOCGIWESSID;
4112 iwe.u.data.flags = 1;
4113 current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe, atom->a.essid);
4114
4115 /* Add mode */
4116 iwe.cmd = SIOCGIWMODE;
4117 capabilities = le16_to_cpu(atom->a.capabilities);
4118 if (capabilities & 0x3) {
4119 if (capabilities & 0x1)
4120 iwe.u.mode = IW_MODE_MASTER;
4121 else
4122 iwe.u.mode = IW_MODE_ADHOC;
4123 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_UINT_LEN);
4124 }
4125
4126 channel = atom->s.channel;
4127 if ( (channel >= 1) && (channel <= NUM_CHANNELS) ) {
4128 /* Add frequency */
4129 iwe.cmd = SIOCGIWFREQ;
4130 iwe.u.freq.m = channel_frequency[channel-1] * 100000;
4131 iwe.u.freq.e = 1;
4132 current_ev = iwe_stream_add_event(current_ev, end_buf,
4133 &iwe, IW_EV_FREQ_LEN);
4134 }
4135
4136 /* Add quality statistics */
4137 iwe.cmd = IWEVQUAL;
4138 iwe.u.qual.updated = 0x10; /* no link quality */
4139 iwe.u.qual.level = (__u8) le16_to_cpu(atom->a.level) - 0x95;
4140 iwe.u.qual.noise = (__u8) le16_to_cpu(atom->a.noise) - 0x95;
4141 /* Wireless tools prior to 27.pre22 will show link quality
4142 * anyway, so we provide a reasonable value. */
4143 if (iwe.u.qual.level > iwe.u.qual.noise)
4144 iwe.u.qual.qual = iwe.u.qual.level - iwe.u.qual.noise;
4145 else
4146 iwe.u.qual.qual = 0;
4147 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_QUAL_LEN);
4148
4149 /* Add encryption capability */
4150 iwe.cmd = SIOCGIWENCODE;
4151 if (capabilities & 0x10)
4152 iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
4153 else
4154 iwe.u.data.flags = IW_ENCODE_DISABLED;
4155 iwe.u.data.length = 0;
4156 current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe, atom->a.essid);
4157
4158 /* Bit rate is not available in Lucent/Agere firmwares */
4159 if (priv->firmware_type != FIRMWARE_TYPE_AGERE) {
4160 char * current_val = current_ev + IW_EV_LCP_LEN;
4161 int i;
4162 int step;
4163
4164 if (priv->firmware_type == FIRMWARE_TYPE_SYMBOL)
4165 step = 2;
4166 else
4167 step = 1;
4168
4169 iwe.cmd = SIOCGIWRATE;
4170 /* Those two flags are ignored... */
4171 iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
4172 /* Max 10 values */
4173 for (i = 0; i < 10; i += step) {
4174 /* NULL terminated */
4175 if (atom->p.rates[i] == 0x0)
4176 break;
4177 /* Bit rate given in 500 kb/s units (+ 0x80) */
4178 iwe.u.bitrate.value = ((atom->p.rates[i] & 0x7f) * 500000);
4179 current_val = iwe_stream_add_value(current_ev, current_val,
4180 end_buf, &iwe,
4181 IW_EV_PARAM_LEN);
4182 }
4183 /* Check if we added any event */
4184 if ((current_val - current_ev) > IW_EV_LCP_LEN)
4185 current_ev = current_val;
4186 }
4187
4188 /* The other data in the scan result are not really
4189 * interesting, so for now drop it - Jean II */
4190 }
4191 return current_ev - buffer;
4192 }
4193
4194 /* Return results of a scan */
4195 static int orinoco_ioctl_getscan(struct net_device *dev,
4196 struct iw_request_info *info,
4197 struct iw_point *srq,
4198 char *extra)
4199 {
4200 struct orinoco_private *priv = netdev_priv(dev);
4201 int err = 0;
4202 unsigned long flags;
4203
4204 if (orinoco_lock(priv, &flags) != 0)
4205 return -EBUSY;
4206
4207 /* If no results yet, ask to try again later */
4208 if (priv->scan_result == NULL) {
4209 if (priv->scan_inprogress)
4210 /* Important note : we don't want to block the caller
4211 * until results are ready for various reasons.
4212 * First, managing wait queues is complex and racy.
4213 * Second, we grab some rtnetlink lock before comming
4214 * here (in dev_ioctl()).
4215 * Third, we generate an Wireless Event, so the
4216 * caller can wait itself on that - Jean II */
4217 err = -EAGAIN;
4218 else
4219 /* Client error, no scan results...
4220 * The caller need to restart the scan. */
4221 err = -ENODATA;
4222 } else {
4223 /* We have some results to push back to user space */
4224
4225 /* Translate to WE format */
4226 int ret = orinoco_translate_scan(dev, extra,
4227 priv->scan_result,
4228 priv->scan_len);
4229
4230 if (ret < 0) {
4231 err = ret;
4232 kfree(priv->scan_result);
4233 priv->scan_result = NULL;
4234 } else {
4235 srq->length = ret;
4236
4237 /* Return flags */
4238 srq->flags = (__u16) priv->scan_mode;
4239
4240 /* In any case, Scan results will be cleaned up in the
4241 * reset function and when exiting the driver.
4242 * The person triggering the scanning may never come to
4243 * pick the results, so we need to do it in those places.
4244 * Jean II */
4245
4246 #ifdef SCAN_SINGLE_READ
4247 /* If you enable this option, only one client (the first
4248 * one) will be able to read the result (and only one
4249 * time). If there is multiple concurent clients that
4250 * want to read scan results, this behavior is not
4251 * advisable - Jean II */
4252 kfree(priv->scan_result);
4253 priv->scan_result = NULL;
4254 #endif /* SCAN_SINGLE_READ */
4255 /* Here, if too much time has elapsed since last scan,
4256 * we may want to clean up scan results... - Jean II */
4257 }
4258
4259 /* Scan is no longer in progress */
4260 priv->scan_inprogress = 0;
4261 }
4262
4263 orinoco_unlock(priv, &flags);
4264 return err;
4265 }
4266
4267 /* Commit handler, called after set operations */
4268 static int orinoco_ioctl_commit(struct net_device *dev,
4269 struct iw_request_info *info,
4270 void *wrqu,
4271 char *extra)
4272 {
4273 struct orinoco_private *priv = netdev_priv(dev);
4274 struct hermes *hw = &priv->hw;
4275 unsigned long flags;
4276 int err = 0;
4277
4278 if (!priv->open)
4279 return 0;
4280
4281 if (priv->broken_disableport) {
4282 orinoco_reset(dev);
4283 return 0;
4284 }
4285
4286 if (orinoco_lock(priv, &flags) != 0)
4287 return err;
4288
4289 err = hermes_disable_port(hw, 0);
4290 if (err) {
4291 printk(KERN_WARNING "%s: Unable to disable port "
4292 "while reconfiguring card\n", dev->name);
4293 priv->broken_disableport = 1;
4294 goto out;
4295 }
4296
4297 err = __orinoco_program_rids(dev);
4298 if (err) {
4299 printk(KERN_WARNING "%s: Unable to reconfigure card\n",
4300 dev->name);
4301 goto out;
4302 }
4303
4304 err = hermes_enable_port(hw, 0);
4305 if (err) {
4306 printk(KERN_WARNING "%s: Unable to enable port while reconfiguring card\n",
4307 dev->name);
4308 goto out;
4309 }
4310
4311 out:
4312 if (err) {
4313 printk(KERN_WARNING "%s: Resetting instead...\n", dev->name);
4314 schedule_work(&priv->reset_work);
4315 err = 0;
4316 }
4317
4318 orinoco_unlock(priv, &flags);
4319 return err;
4320 }
4321
4322 static const struct iw_priv_args orinoco_privtab[] = {
4323 { SIOCIWFIRSTPRIV + 0x0, 0, 0, "force_reset" },
4324 { SIOCIWFIRSTPRIV + 0x1, 0, 0, "card_reset" },
4325 { SIOCIWFIRSTPRIV + 0x2, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
4326 0, "set_port3" },
4327 { SIOCIWFIRSTPRIV + 0x3, 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
4328 "get_port3" },
4329 { SIOCIWFIRSTPRIV + 0x4, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
4330 0, "set_preamble" },
4331 { SIOCIWFIRSTPRIV + 0x5, 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
4332 "get_preamble" },
4333 { SIOCIWFIRSTPRIV + 0x6, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
4334 0, "set_ibssport" },
4335 { SIOCIWFIRSTPRIV + 0x7, 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
4336 "get_ibssport" },
4337 { SIOCIWFIRSTPRIV + 0x9, 0, IW_PRIV_TYPE_BYTE | MAX_RID_LEN,
4338 "get_rid" },
4339 };
4340
4341
4342 /*
4343 * Structures to export the Wireless Handlers
4344 */
4345
4346 static const iw_handler orinoco_handler[] = {
4347 [SIOCSIWCOMMIT-SIOCIWFIRST] = (iw_handler) orinoco_ioctl_commit,
4348 [SIOCGIWNAME -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getname,
4349 [SIOCSIWFREQ -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setfreq,
4350 [SIOCGIWFREQ -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getfreq,
4351 [SIOCSIWMODE -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setmode,
4352 [SIOCGIWMODE -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getmode,
4353 [SIOCSIWSENS -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setsens,
4354 [SIOCGIWSENS -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getsens,
4355 [SIOCGIWRANGE -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getiwrange,
4356 [SIOCSIWSPY -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setspy,
4357 [SIOCGIWSPY -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getspy,
4358 [SIOCSIWAP -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setwap,
4359 [SIOCGIWAP -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getwap,
4360 [SIOCSIWSCAN -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setscan,
4361 [SIOCGIWSCAN -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getscan,
4362 [SIOCSIWESSID -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setessid,
4363 [SIOCGIWESSID -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getessid,
4364 [SIOCSIWNICKN -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setnick,
4365 [SIOCGIWNICKN -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getnick,
4366 [SIOCSIWRATE -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setrate,
4367 [SIOCGIWRATE -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getrate,
4368 [SIOCSIWRTS -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setrts,
4369 [SIOCGIWRTS -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getrts,
4370 [SIOCSIWFRAG -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setfrag,
4371 [SIOCGIWFRAG -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getfrag,
4372 [SIOCGIWRETRY -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getretry,
4373 [SIOCSIWENCODE-SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setiwencode,
4374 [SIOCGIWENCODE-SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getiwencode,
4375 [SIOCSIWPOWER -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setpower,
4376 [SIOCGIWPOWER -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getpower,
4377 };
4378
4379
4380 /*
4381 Added typecasting since we no longer use iwreq_data -- Moustafa
4382 */
4383 static const iw_handler orinoco_private_handler[] = {
4384 [0] = (iw_handler) orinoco_ioctl_reset,
4385 [1] = (iw_handler) orinoco_ioctl_reset,
4386 [2] = (iw_handler) orinoco_ioctl_setport3,
4387 [3] = (iw_handler) orinoco_ioctl_getport3,
4388 [4] = (iw_handler) orinoco_ioctl_setpreamble,
4389 [5] = (iw_handler) orinoco_ioctl_getpreamble,
4390 [6] = (iw_handler) orinoco_ioctl_setibssport,
4391 [7] = (iw_handler) orinoco_ioctl_getibssport,
4392 [9] = (iw_handler) orinoco_ioctl_getrid,
4393 };
4394
4395 static const struct iw_handler_def orinoco_handler_def = {
4396 .num_standard = ARRAY_SIZE(orinoco_handler),
4397 .num_private = ARRAY_SIZE(orinoco_private_handler),
4398 .num_private_args = ARRAY_SIZE(orinoco_privtab),
4399 .standard = orinoco_handler,
4400 .private = orinoco_private_handler,
4401 .private_args = orinoco_privtab,
4402 };
4403
4404 static void orinoco_get_drvinfo(struct net_device *dev,
4405 struct ethtool_drvinfo *info)
4406 {
4407 struct orinoco_private *priv = netdev_priv(dev);
4408
4409 strncpy(info->driver, DRIVER_NAME, sizeof(info->driver) - 1);
4410 strncpy(info->version, DRIVER_VERSION, sizeof(info->version) - 1);
4411 strncpy(info->fw_version, priv->fw_name, sizeof(info->fw_version) - 1);
4412 if (dev->class_dev.dev)
4413 strncpy(info->bus_info, dev->class_dev.dev->bus_id,
4414 sizeof(info->bus_info) - 1);
4415 else
4416 snprintf(info->bus_info, sizeof(info->bus_info) - 1,
4417 "PCMCIA %p", priv->hw.iobase);
4418 }
4419
4420 static struct ethtool_ops orinoco_ethtool_ops = {
4421 .get_drvinfo = orinoco_get_drvinfo,
4422 .get_link = ethtool_op_get_link,
4423 };
4424
4425 /********************************************************************/
4426 /* Debugging */
4427 /********************************************************************/
4428
4429 #if 0
4430 static void show_rx_frame(struct orinoco_rxframe_hdr *frame)
4431 {
4432 printk(KERN_DEBUG "RX descriptor:\n");
4433 printk(KERN_DEBUG " status = 0x%04x\n", frame->desc.status);
4434 printk(KERN_DEBUG " time = 0x%08x\n", frame->desc.time);
4435 printk(KERN_DEBUG " silence = 0x%02x\n", frame->desc.silence);
4436 printk(KERN_DEBUG " signal = 0x%02x\n", frame->desc.signal);
4437 printk(KERN_DEBUG " rate = 0x%02x\n", frame->desc.rate);
4438 printk(KERN_DEBUG " rxflow = 0x%02x\n", frame->desc.rxflow);
4439 printk(KERN_DEBUG " reserved = 0x%08x\n", frame->desc.reserved);
4440
4441 printk(KERN_DEBUG "IEEE 802.11 header:\n");
4442 printk(KERN_DEBUG " frame_ctl = 0x%04x\n",
4443 frame->p80211.frame_ctl);
4444 printk(KERN_DEBUG " duration_id = 0x%04x\n",
4445 frame->p80211.duration_id);
4446 printk(KERN_DEBUG " addr1 = %02x:%02x:%02x:%02x:%02x:%02x\n",
4447 frame->p80211.addr1[0], frame->p80211.addr1[1],
4448 frame->p80211.addr1[2], frame->p80211.addr1[3],
4449 frame->p80211.addr1[4], frame->p80211.addr1[5]);
4450 printk(KERN_DEBUG " addr2 = %02x:%02x:%02x:%02x:%02x:%02x\n",
4451 frame->p80211.addr2[0], frame->p80211.addr2[1],
4452 frame->p80211.addr2[2], frame->p80211.addr2[3],
4453 frame->p80211.addr2[4], frame->p80211.addr2[5]);
4454 printk(KERN_DEBUG " addr3 = %02x:%02x:%02x:%02x:%02x:%02x\n",
4455 frame->p80211.addr3[0], frame->p80211.addr3[1],
4456 frame->p80211.addr3[2], frame->p80211.addr3[3],
4457 frame->p80211.addr3[4], frame->p80211.addr3[5]);
4458 printk(KERN_DEBUG " seq_ctl = 0x%04x\n",
4459 frame->p80211.seq_ctl);
4460 printk(KERN_DEBUG " addr4 = %02x:%02x:%02x:%02x:%02x:%02x\n",
4461 frame->p80211.addr4[0], frame->p80211.addr4[1],
4462 frame->p80211.addr4[2], frame->p80211.addr4[3],
4463 frame->p80211.addr4[4], frame->p80211.addr4[5]);
4464 printk(KERN_DEBUG " data_len = 0x%04x\n",
4465 frame->p80211.data_len);
4466
4467 printk(KERN_DEBUG "IEEE 802.3 header:\n");
4468 printk(KERN_DEBUG " dest = %02x:%02x:%02x:%02x:%02x:%02x\n",
4469 frame->p8023.h_dest[0], frame->p8023.h_dest[1],
4470 frame->p8023.h_dest[2], frame->p8023.h_dest[3],
4471 frame->p8023.h_dest[4], frame->p8023.h_dest[5]);
4472 printk(KERN_DEBUG " src = %02x:%02x:%02x:%02x:%02x:%02x\n",
4473 frame->p8023.h_source[0], frame->p8023.h_source[1],
4474 frame->p8023.h_source[2], frame->p8023.h_source[3],
4475 frame->p8023.h_source[4], frame->p8023.h_source[5]);
4476 printk(KERN_DEBUG " len = 0x%04x\n", frame->p8023.h_proto);
4477
4478 printk(KERN_DEBUG "IEEE 802.2 LLC/SNAP header:\n");
4479 printk(KERN_DEBUG " DSAP = 0x%02x\n", frame->p8022.dsap);
4480 printk(KERN_DEBUG " SSAP = 0x%02x\n", frame->p8022.ssap);
4481 printk(KERN_DEBUG " ctrl = 0x%02x\n", frame->p8022.ctrl);
4482 printk(KERN_DEBUG " OUI = %02x:%02x:%02x\n",
4483 frame->p8022.oui[0], frame->p8022.oui[1], frame->p8022.oui[2]);
4484 printk(KERN_DEBUG " ethertype = 0x%04x\n", frame->ethertype);
4485 }
4486 #endif /* 0 */
4487
4488 /********************************************************************/
4489 /* Module initialization */
4490 /********************************************************************/
4491
4492 EXPORT_SYMBOL(alloc_orinocodev);
4493 EXPORT_SYMBOL(free_orinocodev);
4494
4495 EXPORT_SYMBOL(__orinoco_up);
4496 EXPORT_SYMBOL(__orinoco_down);
4497 EXPORT_SYMBOL(orinoco_reinit_firmware);
4498
4499 EXPORT_SYMBOL(orinoco_interrupt);
4500
4501 /* Can't be declared "const" or the whole __initdata section will
4502 * become const */
4503 static char version[] __initdata = DRIVER_NAME " " DRIVER_VERSION
4504 " (David Gibson <hermes@gibson.dropbear.id.au>, "
4505 "Pavel Roskin <proski@gnu.org>, et al)";
4506
4507 static int __init init_orinoco(void)
4508 {
4509 printk(KERN_DEBUG "%s\n", version);
4510 return 0;
4511 }
4512
4513 static void __exit exit_orinoco(void)
4514 {
4515 }
4516
4517 module_init(init_orinoco);
4518 module_exit(exit_orinoco);
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