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[mirror_ubuntu-jammy-kernel.git] / drivers / net / wireless / orinoco.c
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/module.h>
80 #include <linux/kernel.h>
81 #include <linux/init.h>
82 #include <linux/netdevice.h>
83 #include <linux/etherdevice.h>
84 #include <linux/ethtool.h>
85 #include <linux/wireless.h>
86 #include <net/iw_handler.h>
87 #include <net/ieee80211.h>
88
89 #include "hermes_rid.h"
90 #include "orinoco.h"
91
92 /********************************************************************/
93 /* Module information */
94 /********************************************************************/
95
96 MODULE_AUTHOR("Pavel Roskin <proski@gnu.org> & David Gibson <hermes@gibson.dropbear.id.au>");
97 MODULE_DESCRIPTION("Driver for Lucent Orinoco, Prism II based and similar wireless cards");
98 MODULE_LICENSE("Dual MPL/GPL");
99
100 /* Level of debugging. Used in the macros in orinoco.h */
101 #ifdef ORINOCO_DEBUG
102 int orinoco_debug = ORINOCO_DEBUG;
103 module_param(orinoco_debug, int, 0644);
104 MODULE_PARM_DESC(orinoco_debug, "Debug level");
105 EXPORT_SYMBOL(orinoco_debug);
106 #endif
107
108 static int suppress_linkstatus; /* = 0 */
109 module_param(suppress_linkstatus, bool, 0644);
110 MODULE_PARM_DESC(suppress_linkstatus, "Don't log link status changes");
111 static int ignore_disconnect; /* = 0 */
112 module_param(ignore_disconnect, int, 0644);
113 MODULE_PARM_DESC(ignore_disconnect, "Don't report lost link to the network layer");
114
115 static int force_monitor; /* = 0 */
116 module_param(force_monitor, int, 0644);
117 MODULE_PARM_DESC(force_monitor, "Allow monitor mode for all firmware versions");
118
119 /********************************************************************/
120 /* Compile time configuration and compatibility stuff */
121 /********************************************************************/
122
123 /* We do this this way to avoid ifdefs in the actual code */
124 #ifdef WIRELESS_SPY
125 #define SPY_NUMBER(priv) (priv->spy_data.spy_number)
126 #else
127 #define SPY_NUMBER(priv) 0
128 #endif /* WIRELESS_SPY */
129
130 /********************************************************************/
131 /* Internal constants */
132 /********************************************************************/
133
134 /* 802.2 LLC/SNAP header used for Ethernet encapsulation over 802.11 */
135 static const u8 encaps_hdr[] = {0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00};
136 #define ENCAPS_OVERHEAD (sizeof(encaps_hdr) + 2)
137
138 #define ORINOCO_MIN_MTU 256
139 #define ORINOCO_MAX_MTU (IEEE80211_DATA_LEN - ENCAPS_OVERHEAD)
140
141 #define SYMBOL_MAX_VER_LEN (14)
142 #define USER_BAP 0
143 #define IRQ_BAP 1
144 #define MAX_IRQLOOPS_PER_IRQ 10
145 #define MAX_IRQLOOPS_PER_JIFFY (20000/HZ) /* Based on a guestimate of
146 * how many events the
147 * device could
148 * legitimately generate */
149 #define SMALL_KEY_SIZE 5
150 #define LARGE_KEY_SIZE 13
151 #define TX_NICBUF_SIZE_BUG 1585 /* Bug in Symbol firmware */
152
153 #define DUMMY_FID 0xFFFF
154
155 /*#define MAX_MULTICAST(priv) (priv->firmware_type == FIRMWARE_TYPE_AGERE ? \
156 HERMES_MAX_MULTICAST : 0)*/
157 #define MAX_MULTICAST(priv) (HERMES_MAX_MULTICAST)
158
159 #define ORINOCO_INTEN (HERMES_EV_RX | HERMES_EV_ALLOC \
160 | HERMES_EV_TX | HERMES_EV_TXEXC \
161 | HERMES_EV_WTERR | HERMES_EV_INFO \
162 | HERMES_EV_INFDROP )
163
164 #define MAX_RID_LEN 1024
165
166 static const struct iw_handler_def orinoco_handler_def;
167 static struct ethtool_ops orinoco_ethtool_ops;
168
169 /********************************************************************/
170 /* Data tables */
171 /********************************************************************/
172
173 /* The frequency of each channel in MHz */
174 static const long channel_frequency[] = {
175 2412, 2417, 2422, 2427, 2432, 2437, 2442,
176 2447, 2452, 2457, 2462, 2467, 2472, 2484
177 };
178 #define NUM_CHANNELS ARRAY_SIZE(channel_frequency)
179
180 /* This tables gives the actual meanings of the bitrate IDs returned
181 * by the firmware. */
182 static struct {
183 int bitrate; /* in 100s of kilobits */
184 int automatic;
185 u16 agere_txratectrl;
186 u16 intersil_txratectrl;
187 } bitrate_table[] = {
188 {110, 1, 3, 15}, /* Entry 0 is the default */
189 {10, 0, 1, 1},
190 {10, 1, 1, 1},
191 {20, 0, 2, 2},
192 {20, 1, 6, 3},
193 {55, 0, 4, 4},
194 {55, 1, 7, 7},
195 {110, 0, 5, 8},
196 };
197 #define BITRATE_TABLE_SIZE ARRAY_SIZE(bitrate_table)
198
199 /********************************************************************/
200 /* Data types */
201 /********************************************************************/
202
203 /* Beginning of the Tx descriptor, used in TxExc handling */
204 struct hermes_txexc_data {
205 struct hermes_tx_descriptor desc;
206 __le16 frame_ctl;
207 __le16 duration_id;
208 u8 addr1[ETH_ALEN];
209 } __attribute__ ((packed));
210
211 /* Rx frame header except compatibility 802.3 header */
212 struct hermes_rx_descriptor {
213 /* Control */
214 __le16 status;
215 __le32 time;
216 u8 silence;
217 u8 signal;
218 u8 rate;
219 u8 rxflow;
220 __le32 reserved;
221
222 /* 802.11 header */
223 __le16 frame_ctl;
224 __le16 duration_id;
225 u8 addr1[ETH_ALEN];
226 u8 addr2[ETH_ALEN];
227 u8 addr3[ETH_ALEN];
228 __le16 seq_ctl;
229 u8 addr4[ETH_ALEN];
230
231 /* Data length */
232 __le16 data_len;
233 } __attribute__ ((packed));
234
235 /********************************************************************/
236 /* Function prototypes */
237 /********************************************************************/
238
239 static int __orinoco_program_rids(struct net_device *dev);
240 static void __orinoco_set_multicast_list(struct net_device *dev);
241
242 /********************************************************************/
243 /* Internal helper functions */
244 /********************************************************************/
245
246 static inline void set_port_type(struct orinoco_private *priv)
247 {
248 switch (priv->iw_mode) {
249 case IW_MODE_INFRA:
250 priv->port_type = 1;
251 priv->createibss = 0;
252 break;
253 case IW_MODE_ADHOC:
254 if (priv->prefer_port3) {
255 priv->port_type = 3;
256 priv->createibss = 0;
257 } else {
258 priv->port_type = priv->ibss_port;
259 priv->createibss = 1;
260 }
261 break;
262 case IW_MODE_MONITOR:
263 priv->port_type = 3;
264 priv->createibss = 0;
265 break;
266 default:
267 printk(KERN_ERR "%s: Invalid priv->iw_mode in set_port_type()\n",
268 priv->ndev->name);
269 }
270 }
271
272 /********************************************************************/
273 /* Device methods */
274 /********************************************************************/
275
276 static int orinoco_open(struct net_device *dev)
277 {
278 struct orinoco_private *priv = netdev_priv(dev);
279 unsigned long flags;
280 int err;
281
282 if (orinoco_lock(priv, &flags) != 0)
283 return -EBUSY;
284
285 err = __orinoco_up(dev);
286
287 if (! err)
288 priv->open = 1;
289
290 orinoco_unlock(priv, &flags);
291
292 return err;
293 }
294
295 static int orinoco_stop(struct net_device *dev)
296 {
297 struct orinoco_private *priv = netdev_priv(dev);
298 int err = 0;
299
300 /* We mustn't use orinoco_lock() here, because we need to be
301 able to close the interface even if hw_unavailable is set
302 (e.g. as we're released after a PC Card removal) */
303 spin_lock_irq(&priv->lock);
304
305 priv->open = 0;
306
307 err = __orinoco_down(dev);
308
309 spin_unlock_irq(&priv->lock);
310
311 return err;
312 }
313
314 static struct net_device_stats *orinoco_get_stats(struct net_device *dev)
315 {
316 struct orinoco_private *priv = netdev_priv(dev);
317
318 return &priv->stats;
319 }
320
321 static struct iw_statistics *orinoco_get_wireless_stats(struct net_device *dev)
322 {
323 struct orinoco_private *priv = netdev_priv(dev);
324 hermes_t *hw = &priv->hw;
325 struct iw_statistics *wstats = &priv->wstats;
326 int err;
327 unsigned long flags;
328
329 if (! netif_device_present(dev)) {
330 printk(KERN_WARNING "%s: get_wireless_stats() called while device not present\n",
331 dev->name);
332 return NULL; /* FIXME: Can we do better than this? */
333 }
334
335 /* If busy, return the old stats. Returning NULL may cause
336 * the interface to disappear from /proc/net/wireless */
337 if (orinoco_lock(priv, &flags) != 0)
338 return wstats;
339
340 /* We can't really wait for the tallies inquiry command to
341 * complete, so we just use the previous results and trigger
342 * a new tallies inquiry command for next time - Jean II */
343 /* FIXME: Really we should wait for the inquiry to come back -
344 * as it is the stats we give don't make a whole lot of sense.
345 * Unfortunately, it's not clear how to do that within the
346 * wireless extensions framework: I think we're in user
347 * context, but a lock seems to be held by the time we get in
348 * here so we're not safe to sleep here. */
349 hermes_inquire(hw, HERMES_INQ_TALLIES);
350
351 if (priv->iw_mode == IW_MODE_ADHOC) {
352 memset(&wstats->qual, 0, sizeof(wstats->qual));
353 /* If a spy address is defined, we report stats of the
354 * first spy address - Jean II */
355 if (SPY_NUMBER(priv)) {
356 wstats->qual.qual = priv->spy_data.spy_stat[0].qual;
357 wstats->qual.level = priv->spy_data.spy_stat[0].level;
358 wstats->qual.noise = priv->spy_data.spy_stat[0].noise;
359 wstats->qual.updated = priv->spy_data.spy_stat[0].updated;
360 }
361 } else {
362 struct {
363 __le16 qual, signal, noise, unused;
364 } __attribute__ ((packed)) cq;
365
366 err = HERMES_READ_RECORD(hw, USER_BAP,
367 HERMES_RID_COMMSQUALITY, &cq);
368
369 if (!err) {
370 wstats->qual.qual = (int)le16_to_cpu(cq.qual);
371 wstats->qual.level = (int)le16_to_cpu(cq.signal) - 0x95;
372 wstats->qual.noise = (int)le16_to_cpu(cq.noise) - 0x95;
373 wstats->qual.updated = 7;
374 }
375 }
376
377 orinoco_unlock(priv, &flags);
378 return wstats;
379 }
380
381 static void orinoco_set_multicast_list(struct net_device *dev)
382 {
383 struct orinoco_private *priv = netdev_priv(dev);
384 unsigned long flags;
385
386 if (orinoco_lock(priv, &flags) != 0) {
387 printk(KERN_DEBUG "%s: orinoco_set_multicast_list() "
388 "called when hw_unavailable\n", dev->name);
389 return;
390 }
391
392 __orinoco_set_multicast_list(dev);
393 orinoco_unlock(priv, &flags);
394 }
395
396 static int orinoco_change_mtu(struct net_device *dev, int new_mtu)
397 {
398 struct orinoco_private *priv = netdev_priv(dev);
399
400 if ( (new_mtu < ORINOCO_MIN_MTU) || (new_mtu > ORINOCO_MAX_MTU) )
401 return -EINVAL;
402
403 if ( (new_mtu + ENCAPS_OVERHEAD + IEEE80211_HLEN) >
404 (priv->nicbuf_size - ETH_HLEN) )
405 return -EINVAL;
406
407 dev->mtu = new_mtu;
408
409 return 0;
410 }
411
412 /********************************************************************/
413 /* Tx path */
414 /********************************************************************/
415
416 static int orinoco_xmit(struct sk_buff *skb, struct net_device *dev)
417 {
418 struct orinoco_private *priv = netdev_priv(dev);
419 struct net_device_stats *stats = &priv->stats;
420 hermes_t *hw = &priv->hw;
421 int err = 0;
422 u16 txfid = priv->txfid;
423 struct ethhdr *eh;
424 int data_off;
425 struct hermes_tx_descriptor desc;
426 unsigned long flags;
427
428 if (! netif_running(dev)) {
429 printk(KERN_ERR "%s: Tx on stopped device!\n",
430 dev->name);
431 return NETDEV_TX_BUSY;
432 }
433
434 if (netif_queue_stopped(dev)) {
435 printk(KERN_DEBUG "%s: Tx while transmitter busy!\n",
436 dev->name);
437 return NETDEV_TX_BUSY;
438 }
439
440 if (orinoco_lock(priv, &flags) != 0) {
441 printk(KERN_ERR "%s: orinoco_xmit() called while hw_unavailable\n",
442 dev->name);
443 return NETDEV_TX_BUSY;
444 }
445
446 if (! netif_carrier_ok(dev) || (priv->iw_mode == IW_MODE_MONITOR)) {
447 /* Oops, the firmware hasn't established a connection,
448 silently drop the packet (this seems to be the
449 safest approach). */
450 goto drop;
451 }
452
453 /* Check packet length */
454 if (skb->len < ETH_HLEN)
455 goto drop;
456
457 eh = (struct ethhdr *)skb->data;
458
459 memset(&desc, 0, sizeof(desc));
460 desc.tx_control = cpu_to_le16(HERMES_TXCTRL_TX_OK | HERMES_TXCTRL_TX_EX);
461 err = hermes_bap_pwrite(hw, USER_BAP, &desc, sizeof(desc), txfid, 0);
462 if (err) {
463 if (net_ratelimit())
464 printk(KERN_ERR "%s: Error %d writing Tx descriptor "
465 "to BAP\n", dev->name, err);
466 goto busy;
467 }
468
469 /* Clear the 802.11 header and data length fields - some
470 * firmwares (e.g. Lucent/Agere 8.xx) appear to get confused
471 * if this isn't done. */
472 hermes_clear_words(hw, HERMES_DATA0,
473 HERMES_802_3_OFFSET - HERMES_802_11_OFFSET);
474
475 /* Encapsulate Ethernet-II frames */
476 if (ntohs(eh->h_proto) > ETH_DATA_LEN) { /* Ethernet-II frame */
477 struct header_struct {
478 struct ethhdr eth; /* 802.3 header */
479 u8 encap[6]; /* 802.2 header */
480 } __attribute__ ((packed)) hdr;
481
482 /* Strip destination and source from the data */
483 skb_pull(skb, 2 * ETH_ALEN);
484 data_off = HERMES_802_2_OFFSET + sizeof(encaps_hdr);
485
486 /* And move them to a separate header */
487 memcpy(&hdr.eth, eh, 2 * ETH_ALEN);
488 hdr.eth.h_proto = htons(sizeof(encaps_hdr) + skb->len);
489 memcpy(hdr.encap, encaps_hdr, sizeof(encaps_hdr));
490
491 err = hermes_bap_pwrite(hw, USER_BAP, &hdr, sizeof(hdr),
492 txfid, HERMES_802_3_OFFSET);
493 if (err) {
494 if (net_ratelimit())
495 printk(KERN_ERR "%s: Error %d writing packet "
496 "header to BAP\n", dev->name, err);
497 goto busy;
498 }
499 } else { /* IEEE 802.3 frame */
500 data_off = HERMES_802_3_OFFSET;
501 }
502
503 err = hermes_bap_pwrite(hw, USER_BAP, skb->data, skb->len,
504 txfid, data_off);
505 if (err) {
506 printk(KERN_ERR "%s: Error %d writing packet to BAP\n",
507 dev->name, err);
508 goto busy;
509 }
510
511 /* Finally, we actually initiate the send */
512 netif_stop_queue(dev);
513
514 err = hermes_docmd_wait(hw, HERMES_CMD_TX | HERMES_CMD_RECL,
515 txfid, NULL);
516 if (err) {
517 netif_start_queue(dev);
518 if (net_ratelimit())
519 printk(KERN_ERR "%s: Error %d transmitting packet\n",
520 dev->name, err);
521 goto busy;
522 }
523
524 dev->trans_start = jiffies;
525 stats->tx_bytes += data_off + skb->len;
526 goto ok;
527
528 drop:
529 stats->tx_errors++;
530 stats->tx_dropped++;
531
532 ok:
533 orinoco_unlock(priv, &flags);
534 dev_kfree_skb(skb);
535 return NETDEV_TX_OK;
536
537 busy:
538 if (err == -EIO)
539 schedule_work(&priv->reset_work);
540 orinoco_unlock(priv, &flags);
541 return NETDEV_TX_BUSY;
542 }
543
544 static void __orinoco_ev_alloc(struct net_device *dev, hermes_t *hw)
545 {
546 struct orinoco_private *priv = netdev_priv(dev);
547 u16 fid = hermes_read_regn(hw, ALLOCFID);
548
549 if (fid != priv->txfid) {
550 if (fid != DUMMY_FID)
551 printk(KERN_WARNING "%s: Allocate event on unexpected fid (%04X)\n",
552 dev->name, fid);
553 return;
554 }
555
556 hermes_write_regn(hw, ALLOCFID, DUMMY_FID);
557 }
558
559 static void __orinoco_ev_tx(struct net_device *dev, hermes_t *hw)
560 {
561 struct orinoco_private *priv = netdev_priv(dev);
562 struct net_device_stats *stats = &priv->stats;
563
564 stats->tx_packets++;
565
566 netif_wake_queue(dev);
567
568 hermes_write_regn(hw, TXCOMPLFID, DUMMY_FID);
569 }
570
571 static void __orinoco_ev_txexc(struct net_device *dev, hermes_t *hw)
572 {
573 struct orinoco_private *priv = netdev_priv(dev);
574 struct net_device_stats *stats = &priv->stats;
575 u16 fid = hermes_read_regn(hw, TXCOMPLFID);
576 u16 status;
577 struct hermes_txexc_data hdr;
578 int err = 0;
579
580 if (fid == DUMMY_FID)
581 return; /* Nothing's really happened */
582
583 /* Read part of the frame header - we need status and addr1 */
584 err = hermes_bap_pread(hw, IRQ_BAP, &hdr,
585 sizeof(struct hermes_txexc_data),
586 fid, 0);
587
588 hermes_write_regn(hw, TXCOMPLFID, DUMMY_FID);
589 stats->tx_errors++;
590
591 if (err) {
592 printk(KERN_WARNING "%s: Unable to read descriptor on Tx error "
593 "(FID=%04X error %d)\n",
594 dev->name, fid, err);
595 return;
596 }
597
598 DEBUG(1, "%s: Tx error, err %d (FID=%04X)\n", dev->name,
599 err, fid);
600
601 /* We produce a TXDROP event only for retry or lifetime
602 * exceeded, because that's the only status that really mean
603 * that this particular node went away.
604 * Other errors means that *we* screwed up. - Jean II */
605 status = le16_to_cpu(hdr.desc.status);
606 if (status & (HERMES_TXSTAT_RETRYERR | HERMES_TXSTAT_AGEDERR)) {
607 union iwreq_data wrqu;
608
609 /* Copy 802.11 dest address.
610 * We use the 802.11 header because the frame may
611 * not be 802.3 or may be mangled...
612 * In Ad-Hoc mode, it will be the node address.
613 * In managed mode, it will be most likely the AP addr
614 * User space will figure out how to convert it to
615 * whatever it needs (IP address or else).
616 * - Jean II */
617 memcpy(wrqu.addr.sa_data, hdr.addr1, ETH_ALEN);
618 wrqu.addr.sa_family = ARPHRD_ETHER;
619
620 /* Send event to user space */
621 wireless_send_event(dev, IWEVTXDROP, &wrqu, NULL);
622 }
623
624 netif_wake_queue(dev);
625 }
626
627 static void orinoco_tx_timeout(struct net_device *dev)
628 {
629 struct orinoco_private *priv = netdev_priv(dev);
630 struct net_device_stats *stats = &priv->stats;
631 struct hermes *hw = &priv->hw;
632
633 printk(KERN_WARNING "%s: Tx timeout! "
634 "ALLOCFID=%04x, TXCOMPLFID=%04x, EVSTAT=%04x\n",
635 dev->name, hermes_read_regn(hw, ALLOCFID),
636 hermes_read_regn(hw, TXCOMPLFID), hermes_read_regn(hw, EVSTAT));
637
638 stats->tx_errors++;
639
640 schedule_work(&priv->reset_work);
641 }
642
643 /********************************************************************/
644 /* Rx path (data frames) */
645 /********************************************************************/
646
647 /* Does the frame have a SNAP header indicating it should be
648 * de-encapsulated to Ethernet-II? */
649 static inline int is_ethersnap(void *_hdr)
650 {
651 u8 *hdr = _hdr;
652
653 /* We de-encapsulate all packets which, a) have SNAP headers
654 * (i.e. SSAP=DSAP=0xaa and CTRL=0x3 in the 802.2 LLC header
655 * and where b) the OUI of the SNAP header is 00:00:00 or
656 * 00:00:f8 - we need both because different APs appear to use
657 * different OUIs for some reason */
658 return (memcmp(hdr, &encaps_hdr, 5) == 0)
659 && ( (hdr[5] == 0x00) || (hdr[5] == 0xf8) );
660 }
661
662 static inline void orinoco_spy_gather(struct net_device *dev, u_char *mac,
663 int level, int noise)
664 {
665 struct iw_quality wstats;
666 wstats.level = level - 0x95;
667 wstats.noise = noise - 0x95;
668 wstats.qual = (level > noise) ? (level - noise) : 0;
669 wstats.updated = 7;
670 /* Update spy records */
671 wireless_spy_update(dev, mac, &wstats);
672 }
673
674 static void orinoco_stat_gather(struct net_device *dev,
675 struct sk_buff *skb,
676 struct hermes_rx_descriptor *desc)
677 {
678 struct orinoco_private *priv = netdev_priv(dev);
679
680 /* Using spy support with lots of Rx packets, like in an
681 * infrastructure (AP), will really slow down everything, because
682 * the MAC address must be compared to each entry of the spy list.
683 * If the user really asks for it (set some address in the
684 * spy list), we do it, but he will pay the price.
685 * Note that to get here, you need both WIRELESS_SPY
686 * compiled in AND some addresses in the list !!!
687 */
688 /* Note : gcc will optimise the whole section away if
689 * WIRELESS_SPY is not defined... - Jean II */
690 if (SPY_NUMBER(priv)) {
691 orinoco_spy_gather(dev, skb->mac.raw + ETH_ALEN,
692 desc->signal, desc->silence);
693 }
694 }
695
696 /*
697 * orinoco_rx_monitor - handle received monitor frames.
698 *
699 * Arguments:
700 * dev network device
701 * rxfid received FID
702 * desc rx descriptor of the frame
703 *
704 * Call context: interrupt
705 */
706 static void orinoco_rx_monitor(struct net_device *dev, u16 rxfid,
707 struct hermes_rx_descriptor *desc)
708 {
709 u32 hdrlen = 30; /* return full header by default */
710 u32 datalen = 0;
711 u16 fc;
712 int err;
713 int len;
714 struct sk_buff *skb;
715 struct orinoco_private *priv = netdev_priv(dev);
716 struct net_device_stats *stats = &priv->stats;
717 hermes_t *hw = &priv->hw;
718
719 len = le16_to_cpu(desc->data_len);
720
721 /* Determine the size of the header and the data */
722 fc = le16_to_cpu(desc->frame_ctl);
723 switch (fc & IEEE80211_FCTL_FTYPE) {
724 case IEEE80211_FTYPE_DATA:
725 if ((fc & IEEE80211_FCTL_TODS)
726 && (fc & IEEE80211_FCTL_FROMDS))
727 hdrlen = 30;
728 else
729 hdrlen = 24;
730 datalen = len;
731 break;
732 case IEEE80211_FTYPE_MGMT:
733 hdrlen = 24;
734 datalen = len;
735 break;
736 case IEEE80211_FTYPE_CTL:
737 switch (fc & IEEE80211_FCTL_STYPE) {
738 case IEEE80211_STYPE_PSPOLL:
739 case IEEE80211_STYPE_RTS:
740 case IEEE80211_STYPE_CFEND:
741 case IEEE80211_STYPE_CFENDACK:
742 hdrlen = 16;
743 break;
744 case IEEE80211_STYPE_CTS:
745 case IEEE80211_STYPE_ACK:
746 hdrlen = 10;
747 break;
748 }
749 break;
750 default:
751 /* Unknown frame type */
752 break;
753 }
754
755 /* sanity check the length */
756 if (datalen > IEEE80211_DATA_LEN + 12) {
757 printk(KERN_DEBUG "%s: oversized monitor frame, "
758 "data length = %d\n", dev->name, datalen);
759 stats->rx_length_errors++;
760 goto update_stats;
761 }
762
763 skb = dev_alloc_skb(hdrlen + datalen);
764 if (!skb) {
765 printk(KERN_WARNING "%s: Cannot allocate skb for monitor frame\n",
766 dev->name);
767 goto update_stats;
768 }
769
770 /* Copy the 802.11 header to the skb */
771 memcpy(skb_put(skb, hdrlen), &(desc->frame_ctl), hdrlen);
772 skb->mac.raw = skb->data;
773
774 /* If any, copy the data from the card to the skb */
775 if (datalen > 0) {
776 err = hermes_bap_pread(hw, IRQ_BAP, skb_put(skb, datalen),
777 ALIGN(datalen, 2), rxfid,
778 HERMES_802_2_OFFSET);
779 if (err) {
780 printk(KERN_ERR "%s: error %d reading monitor frame\n",
781 dev->name, err);
782 goto drop;
783 }
784 }
785
786 skb->dev = dev;
787 skb->ip_summed = CHECKSUM_NONE;
788 skb->pkt_type = PACKET_OTHERHOST;
789 skb->protocol = __constant_htons(ETH_P_802_2);
790
791 dev->last_rx = jiffies;
792 stats->rx_packets++;
793 stats->rx_bytes += skb->len;
794
795 netif_rx(skb);
796 return;
797
798 drop:
799 dev_kfree_skb_irq(skb);
800 update_stats:
801 stats->rx_errors++;
802 stats->rx_dropped++;
803 }
804
805 static void __orinoco_ev_rx(struct net_device *dev, hermes_t *hw)
806 {
807 struct orinoco_private *priv = netdev_priv(dev);
808 struct net_device_stats *stats = &priv->stats;
809 struct iw_statistics *wstats = &priv->wstats;
810 struct sk_buff *skb = NULL;
811 u16 rxfid, status, fc;
812 int length;
813 struct hermes_rx_descriptor desc;
814 struct ethhdr *hdr;
815 int err;
816
817 rxfid = hermes_read_regn(hw, RXFID);
818
819 err = hermes_bap_pread(hw, IRQ_BAP, &desc, sizeof(desc),
820 rxfid, 0);
821 if (err) {
822 printk(KERN_ERR "%s: error %d reading Rx descriptor. "
823 "Frame dropped.\n", dev->name, err);
824 goto update_stats;
825 }
826
827 status = le16_to_cpu(desc.status);
828
829 if (status & HERMES_RXSTAT_BADCRC) {
830 DEBUG(1, "%s: Bad CRC on Rx. Frame dropped.\n",
831 dev->name);
832 stats->rx_crc_errors++;
833 goto update_stats;
834 }
835
836 /* Handle frames in monitor mode */
837 if (priv->iw_mode == IW_MODE_MONITOR) {
838 orinoco_rx_monitor(dev, rxfid, &desc);
839 return;
840 }
841
842 if (status & HERMES_RXSTAT_UNDECRYPTABLE) {
843 DEBUG(1, "%s: Undecryptable frame on Rx. Frame dropped.\n",
844 dev->name);
845 wstats->discard.code++;
846 goto update_stats;
847 }
848
849 length = le16_to_cpu(desc.data_len);
850 fc = le16_to_cpu(desc.frame_ctl);
851
852 /* Sanity checks */
853 if (length < 3) { /* No for even an 802.2 LLC header */
854 /* At least on Symbol firmware with PCF we get quite a
855 lot of these legitimately - Poll frames with no
856 data. */
857 return;
858 }
859 if (length > IEEE80211_DATA_LEN) {
860 printk(KERN_WARNING "%s: Oversized frame received (%d bytes)\n",
861 dev->name, length);
862 stats->rx_length_errors++;
863 goto update_stats;
864 }
865
866 /* We need space for the packet data itself, plus an ethernet
867 header, plus 2 bytes so we can align the IP header on a
868 32bit boundary, plus 1 byte so we can read in odd length
869 packets from the card, which has an IO granularity of 16
870 bits */
871 skb = dev_alloc_skb(length+ETH_HLEN+2+1);
872 if (!skb) {
873 printk(KERN_WARNING "%s: Can't allocate skb for Rx\n",
874 dev->name);
875 goto update_stats;
876 }
877
878 /* We'll prepend the header, so reserve space for it. The worst
879 case is no decapsulation, when 802.3 header is prepended and
880 nothing is removed. 2 is for aligning the IP header. */
881 skb_reserve(skb, ETH_HLEN + 2);
882
883 err = hermes_bap_pread(hw, IRQ_BAP, skb_put(skb, length),
884 ALIGN(length, 2), rxfid,
885 HERMES_802_2_OFFSET);
886 if (err) {
887 printk(KERN_ERR "%s: error %d reading frame. "
888 "Frame dropped.\n", dev->name, err);
889 goto drop;
890 }
891
892 /* Handle decapsulation
893 * In most cases, the firmware tell us about SNAP frames.
894 * For some reason, the SNAP frames sent by LinkSys APs
895 * are not properly recognised by most firmwares.
896 * So, check ourselves */
897 if (length >= ENCAPS_OVERHEAD &&
898 (((status & HERMES_RXSTAT_MSGTYPE) == HERMES_RXSTAT_1042) ||
899 ((status & HERMES_RXSTAT_MSGTYPE) == HERMES_RXSTAT_TUNNEL) ||
900 is_ethersnap(skb->data))) {
901 /* These indicate a SNAP within 802.2 LLC within
902 802.11 frame which we'll need to de-encapsulate to
903 the original EthernetII frame. */
904 hdr = (struct ethhdr *)skb_push(skb, ETH_HLEN - ENCAPS_OVERHEAD);
905 } else {
906 /* 802.3 frame - prepend 802.3 header as is */
907 hdr = (struct ethhdr *)skb_push(skb, ETH_HLEN);
908 hdr->h_proto = htons(length);
909 }
910 memcpy(hdr->h_dest, desc.addr1, ETH_ALEN);
911 if (fc & IEEE80211_FCTL_FROMDS)
912 memcpy(hdr->h_source, desc.addr3, ETH_ALEN);
913 else
914 memcpy(hdr->h_source, desc.addr2, ETH_ALEN);
915
916 dev->last_rx = jiffies;
917 skb->dev = dev;
918 skb->protocol = eth_type_trans(skb, dev);
919 skb->ip_summed = CHECKSUM_NONE;
920 if (fc & IEEE80211_FCTL_TODS)
921 skb->pkt_type = PACKET_OTHERHOST;
922
923 /* Process the wireless stats if needed */
924 orinoco_stat_gather(dev, skb, &desc);
925
926 /* Pass the packet to the networking stack */
927 netif_rx(skb);
928 stats->rx_packets++;
929 stats->rx_bytes += length;
930
931 return;
932
933 drop:
934 dev_kfree_skb_irq(skb);
935 update_stats:
936 stats->rx_errors++;
937 stats->rx_dropped++;
938 }
939
940 /********************************************************************/
941 /* Rx path (info frames) */
942 /********************************************************************/
943
944 static void print_linkstatus(struct net_device *dev, u16 status)
945 {
946 char * s;
947
948 if (suppress_linkstatus)
949 return;
950
951 switch (status) {
952 case HERMES_LINKSTATUS_NOT_CONNECTED:
953 s = "Not Connected";
954 break;
955 case HERMES_LINKSTATUS_CONNECTED:
956 s = "Connected";
957 break;
958 case HERMES_LINKSTATUS_DISCONNECTED:
959 s = "Disconnected";
960 break;
961 case HERMES_LINKSTATUS_AP_CHANGE:
962 s = "AP Changed";
963 break;
964 case HERMES_LINKSTATUS_AP_OUT_OF_RANGE:
965 s = "AP Out of Range";
966 break;
967 case HERMES_LINKSTATUS_AP_IN_RANGE:
968 s = "AP In Range";
969 break;
970 case HERMES_LINKSTATUS_ASSOC_FAILED:
971 s = "Association Failed";
972 break;
973 default:
974 s = "UNKNOWN";
975 }
976
977 printk(KERN_INFO "%s: New link status: %s (%04x)\n",
978 dev->name, s, status);
979 }
980
981 /* Search scan results for requested BSSID, join it if found */
982 static void orinoco_join_ap(struct net_device *dev)
983 {
984 struct orinoco_private *priv = netdev_priv(dev);
985 struct hermes *hw = &priv->hw;
986 int err;
987 unsigned long flags;
988 struct join_req {
989 u8 bssid[ETH_ALEN];
990 __le16 channel;
991 } __attribute__ ((packed)) req;
992 const int atom_len = offsetof(struct prism2_scan_apinfo, atim);
993 struct prism2_scan_apinfo *atom = NULL;
994 int offset = 4;
995 int found = 0;
996 u8 *buf;
997 u16 len;
998
999 /* Allocate buffer for scan results */
1000 buf = kmalloc(MAX_SCAN_LEN, GFP_KERNEL);
1001 if (! buf)
1002 return;
1003
1004 if (orinoco_lock(priv, &flags) != 0)
1005 goto fail_lock;
1006
1007 /* Sanity checks in case user changed something in the meantime */
1008 if (! priv->bssid_fixed)
1009 goto out;
1010
1011 if (strlen(priv->desired_essid) == 0)
1012 goto out;
1013
1014 /* Read scan results from the firmware */
1015 err = hermes_read_ltv(hw, USER_BAP,
1016 HERMES_RID_SCANRESULTSTABLE,
1017 MAX_SCAN_LEN, &len, buf);
1018 if (err) {
1019 printk(KERN_ERR "%s: Cannot read scan results\n",
1020 dev->name);
1021 goto out;
1022 }
1023
1024 len = HERMES_RECLEN_TO_BYTES(len);
1025
1026 /* Go through the scan results looking for the channel of the AP
1027 * we were requested to join */
1028 for (; offset + atom_len <= len; offset += atom_len) {
1029 atom = (struct prism2_scan_apinfo *) (buf + offset);
1030 if (memcmp(&atom->bssid, priv->desired_bssid, ETH_ALEN) == 0) {
1031 found = 1;
1032 break;
1033 }
1034 }
1035
1036 if (! found) {
1037 DEBUG(1, "%s: Requested AP not found in scan results\n",
1038 dev->name);
1039 goto out;
1040 }
1041
1042 memcpy(req.bssid, priv->desired_bssid, ETH_ALEN);
1043 req.channel = atom->channel; /* both are little-endian */
1044 err = HERMES_WRITE_RECORD(hw, USER_BAP, HERMES_RID_CNFJOINREQUEST,
1045 &req);
1046 if (err)
1047 printk(KERN_ERR "%s: Error issuing join request\n", dev->name);
1048
1049 out:
1050 orinoco_unlock(priv, &flags);
1051
1052 fail_lock:
1053 kfree(buf);
1054 }
1055
1056 /* Send new BSSID to userspace */
1057 static void orinoco_send_wevents(struct net_device *dev)
1058 {
1059 struct orinoco_private *priv = netdev_priv(dev);
1060 struct hermes *hw = &priv->hw;
1061 union iwreq_data wrqu;
1062 int err;
1063 unsigned long flags;
1064
1065 if (orinoco_lock(priv, &flags) != 0)
1066 return;
1067
1068 err = hermes_read_ltv(hw, IRQ_BAP, HERMES_RID_CURRENTBSSID,
1069 ETH_ALEN, NULL, wrqu.ap_addr.sa_data);
1070 if (err != 0)
1071 goto out;
1072
1073 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
1074
1075 /* Send event to user space */
1076 wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
1077
1078 out:
1079 orinoco_unlock(priv, &flags);
1080 }
1081
1082 static void __orinoco_ev_info(struct net_device *dev, hermes_t *hw)
1083 {
1084 struct orinoco_private *priv = netdev_priv(dev);
1085 u16 infofid;
1086 struct {
1087 __le16 len;
1088 __le16 type;
1089 } __attribute__ ((packed)) info;
1090 int len, type;
1091 int err;
1092
1093 /* This is an answer to an INQUIRE command that we did earlier,
1094 * or an information "event" generated by the card
1095 * The controller return to us a pseudo frame containing
1096 * the information in question - Jean II */
1097 infofid = hermes_read_regn(hw, INFOFID);
1098
1099 /* Read the info frame header - don't try too hard */
1100 err = hermes_bap_pread(hw, IRQ_BAP, &info, sizeof(info),
1101 infofid, 0);
1102 if (err) {
1103 printk(KERN_ERR "%s: error %d reading info frame. "
1104 "Frame dropped.\n", dev->name, err);
1105 return;
1106 }
1107
1108 len = HERMES_RECLEN_TO_BYTES(le16_to_cpu(info.len));
1109 type = le16_to_cpu(info.type);
1110
1111 switch (type) {
1112 case HERMES_INQ_TALLIES: {
1113 struct hermes_tallies_frame tallies;
1114 struct iw_statistics *wstats = &priv->wstats;
1115
1116 if (len > sizeof(tallies)) {
1117 printk(KERN_WARNING "%s: Tallies frame too long (%d bytes)\n",
1118 dev->name, len);
1119 len = sizeof(tallies);
1120 }
1121
1122 err = hermes_bap_pread(hw, IRQ_BAP, &tallies, len,
1123 infofid, sizeof(info));
1124 if (err)
1125 break;
1126
1127 /* Increment our various counters */
1128 /* wstats->discard.nwid - no wrong BSSID stuff */
1129 wstats->discard.code +=
1130 le16_to_cpu(tallies.RxWEPUndecryptable);
1131 if (len == sizeof(tallies))
1132 wstats->discard.code +=
1133 le16_to_cpu(tallies.RxDiscards_WEPICVError) +
1134 le16_to_cpu(tallies.RxDiscards_WEPExcluded);
1135 wstats->discard.misc +=
1136 le16_to_cpu(tallies.TxDiscardsWrongSA);
1137 wstats->discard.fragment +=
1138 le16_to_cpu(tallies.RxMsgInBadMsgFragments);
1139 wstats->discard.retries +=
1140 le16_to_cpu(tallies.TxRetryLimitExceeded);
1141 /* wstats->miss.beacon - no match */
1142 }
1143 break;
1144 case HERMES_INQ_LINKSTATUS: {
1145 struct hermes_linkstatus linkstatus;
1146 u16 newstatus;
1147 int connected;
1148
1149 if (priv->iw_mode == IW_MODE_MONITOR)
1150 break;
1151
1152 if (len != sizeof(linkstatus)) {
1153 printk(KERN_WARNING "%s: Unexpected size for linkstatus frame (%d bytes)\n",
1154 dev->name, len);
1155 break;
1156 }
1157
1158 err = hermes_bap_pread(hw, IRQ_BAP, &linkstatus, len,
1159 infofid, sizeof(info));
1160 if (err)
1161 break;
1162 newstatus = le16_to_cpu(linkstatus.linkstatus);
1163
1164 /* Symbol firmware uses "out of range" to signal that
1165 * the hostscan frame can be requested. */
1166 if (newstatus == HERMES_LINKSTATUS_AP_OUT_OF_RANGE &&
1167 priv->firmware_type == FIRMWARE_TYPE_SYMBOL &&
1168 priv->has_hostscan && priv->scan_inprogress) {
1169 hermes_inquire(hw, HERMES_INQ_HOSTSCAN_SYMBOL);
1170 break;
1171 }
1172
1173 connected = (newstatus == HERMES_LINKSTATUS_CONNECTED)
1174 || (newstatus == HERMES_LINKSTATUS_AP_CHANGE)
1175 || (newstatus == HERMES_LINKSTATUS_AP_IN_RANGE);
1176
1177 if (connected)
1178 netif_carrier_on(dev);
1179 else if (!ignore_disconnect)
1180 netif_carrier_off(dev);
1181
1182 if (newstatus != priv->last_linkstatus) {
1183 priv->last_linkstatus = newstatus;
1184 print_linkstatus(dev, newstatus);
1185 /* The info frame contains only one word which is the
1186 * status (see hermes.h). The status is pretty boring
1187 * in itself, that's why we export the new BSSID...
1188 * Jean II */
1189 schedule_work(&priv->wevent_work);
1190 }
1191 }
1192 break;
1193 case HERMES_INQ_SCAN:
1194 if (!priv->scan_inprogress && priv->bssid_fixed &&
1195 priv->firmware_type == FIRMWARE_TYPE_INTERSIL) {
1196 schedule_work(&priv->join_work);
1197 break;
1198 }
1199 /* fall through */
1200 case HERMES_INQ_HOSTSCAN:
1201 case HERMES_INQ_HOSTSCAN_SYMBOL: {
1202 /* Result of a scanning. Contains information about
1203 * cells in the vicinity - Jean II */
1204 union iwreq_data wrqu;
1205 unsigned char *buf;
1206
1207 /* Sanity check */
1208 if (len > 4096) {
1209 printk(KERN_WARNING "%s: Scan results too large (%d bytes)\n",
1210 dev->name, len);
1211 break;
1212 }
1213
1214 /* We are a strict producer. If the previous scan results
1215 * have not been consumed, we just have to drop this
1216 * frame. We can't remove the previous results ourselves,
1217 * that would be *very* racy... Jean II */
1218 if (priv->scan_result != NULL) {
1219 printk(KERN_WARNING "%s: Previous scan results not consumed, dropping info frame.\n", dev->name);
1220 break;
1221 }
1222
1223 /* Allocate buffer for results */
1224 buf = kmalloc(len, GFP_ATOMIC);
1225 if (buf == NULL)
1226 /* No memory, so can't printk()... */
1227 break;
1228
1229 /* Read scan data */
1230 err = hermes_bap_pread(hw, IRQ_BAP, (void *) buf, len,
1231 infofid, sizeof(info));
1232 if (err) {
1233 kfree(buf);
1234 break;
1235 }
1236
1237 #ifdef ORINOCO_DEBUG
1238 {
1239 int i;
1240 printk(KERN_DEBUG "Scan result [%02X", buf[0]);
1241 for(i = 1; i < (len * 2); i++)
1242 printk(":%02X", buf[i]);
1243 printk("]\n");
1244 }
1245 #endif /* ORINOCO_DEBUG */
1246
1247 /* Allow the clients to access the results */
1248 priv->scan_len = len;
1249 priv->scan_result = buf;
1250
1251 /* Send an empty event to user space.
1252 * We don't send the received data on the event because
1253 * it would require us to do complex transcoding, and
1254 * we want to minimise the work done in the irq handler
1255 * Use a request to extract the data - Jean II */
1256 wrqu.data.length = 0;
1257 wrqu.data.flags = 0;
1258 wireless_send_event(dev, SIOCGIWSCAN, &wrqu, NULL);
1259 }
1260 break;
1261 case HERMES_INQ_SEC_STAT_AGERE:
1262 /* Security status (Agere specific) */
1263 /* Ignore this frame for now */
1264 if (priv->firmware_type == FIRMWARE_TYPE_AGERE)
1265 break;
1266 /* fall through */
1267 default:
1268 printk(KERN_DEBUG "%s: Unknown information frame received: "
1269 "type 0x%04x, length %d\n", dev->name, type, len);
1270 /* We don't actually do anything about it */
1271 break;
1272 }
1273 }
1274
1275 static void __orinoco_ev_infdrop(struct net_device *dev, hermes_t *hw)
1276 {
1277 if (net_ratelimit())
1278 printk(KERN_DEBUG "%s: Information frame lost.\n", dev->name);
1279 }
1280
1281 /********************************************************************/
1282 /* Internal hardware control routines */
1283 /********************************************************************/
1284
1285 int __orinoco_up(struct net_device *dev)
1286 {
1287 struct orinoco_private *priv = netdev_priv(dev);
1288 struct hermes *hw = &priv->hw;
1289 int err;
1290
1291 netif_carrier_off(dev); /* just to make sure */
1292
1293 err = __orinoco_program_rids(dev);
1294 if (err) {
1295 printk(KERN_ERR "%s: Error %d configuring card\n",
1296 dev->name, err);
1297 return err;
1298 }
1299
1300 /* Fire things up again */
1301 hermes_set_irqmask(hw, ORINOCO_INTEN);
1302 err = hermes_enable_port(hw, 0);
1303 if (err) {
1304 printk(KERN_ERR "%s: Error %d enabling MAC port\n",
1305 dev->name, err);
1306 return err;
1307 }
1308
1309 netif_start_queue(dev);
1310
1311 return 0;
1312 }
1313
1314 int __orinoco_down(struct net_device *dev)
1315 {
1316 struct orinoco_private *priv = netdev_priv(dev);
1317 struct hermes *hw = &priv->hw;
1318 int err;
1319
1320 netif_stop_queue(dev);
1321
1322 if (! priv->hw_unavailable) {
1323 if (! priv->broken_disableport) {
1324 err = hermes_disable_port(hw, 0);
1325 if (err) {
1326 /* Some firmwares (e.g. Intersil 1.3.x) seem
1327 * to have problems disabling the port, oh
1328 * well, too bad. */
1329 printk(KERN_WARNING "%s: Error %d disabling MAC port\n",
1330 dev->name, err);
1331 priv->broken_disableport = 1;
1332 }
1333 }
1334 hermes_set_irqmask(hw, 0);
1335 hermes_write_regn(hw, EVACK, 0xffff);
1336 }
1337
1338 /* firmware will have to reassociate */
1339 netif_carrier_off(dev);
1340 priv->last_linkstatus = 0xffff;
1341
1342 return 0;
1343 }
1344
1345 static int orinoco_allocate_fid(struct net_device *dev)
1346 {
1347 struct orinoco_private *priv = netdev_priv(dev);
1348 struct hermes *hw = &priv->hw;
1349 int err;
1350
1351 err = hermes_allocate(hw, priv->nicbuf_size, &priv->txfid);
1352 if (err == -EIO && priv->nicbuf_size > TX_NICBUF_SIZE_BUG) {
1353 /* Try workaround for old Symbol firmware bug */
1354 printk(KERN_WARNING "%s: firmware ALLOC bug detected "
1355 "(old Symbol firmware?). Trying to work around... ",
1356 dev->name);
1357
1358 priv->nicbuf_size = TX_NICBUF_SIZE_BUG;
1359 err = hermes_allocate(hw, priv->nicbuf_size, &priv->txfid);
1360 if (err)
1361 printk("failed!\n");
1362 else
1363 printk("ok.\n");
1364 }
1365
1366 return err;
1367 }
1368
1369 int orinoco_reinit_firmware(struct net_device *dev)
1370 {
1371 struct orinoco_private *priv = netdev_priv(dev);
1372 struct hermes *hw = &priv->hw;
1373 int err;
1374
1375 err = hermes_init(hw);
1376 if (!err)
1377 err = orinoco_allocate_fid(dev);
1378
1379 return err;
1380 }
1381
1382 static int __orinoco_hw_set_bitrate(struct orinoco_private *priv)
1383 {
1384 hermes_t *hw = &priv->hw;
1385 int err = 0;
1386
1387 if (priv->bitratemode >= BITRATE_TABLE_SIZE) {
1388 printk(KERN_ERR "%s: BUG: Invalid bitrate mode %d\n",
1389 priv->ndev->name, priv->bitratemode);
1390 return -EINVAL;
1391 }
1392
1393 switch (priv->firmware_type) {
1394 case FIRMWARE_TYPE_AGERE:
1395 err = hermes_write_wordrec(hw, USER_BAP,
1396 HERMES_RID_CNFTXRATECONTROL,
1397 bitrate_table[priv->bitratemode].agere_txratectrl);
1398 break;
1399 case FIRMWARE_TYPE_INTERSIL:
1400 case FIRMWARE_TYPE_SYMBOL:
1401 err = hermes_write_wordrec(hw, USER_BAP,
1402 HERMES_RID_CNFTXRATECONTROL,
1403 bitrate_table[priv->bitratemode].intersil_txratectrl);
1404 break;
1405 default:
1406 BUG();
1407 }
1408
1409 return err;
1410 }
1411
1412 /* Set fixed AP address */
1413 static int __orinoco_hw_set_wap(struct orinoco_private *priv)
1414 {
1415 int roaming_flag;
1416 int err = 0;
1417 hermes_t *hw = &priv->hw;
1418
1419 switch (priv->firmware_type) {
1420 case FIRMWARE_TYPE_AGERE:
1421 /* not supported */
1422 break;
1423 case FIRMWARE_TYPE_INTERSIL:
1424 if (priv->bssid_fixed)
1425 roaming_flag = 2;
1426 else
1427 roaming_flag = 1;
1428
1429 err = hermes_write_wordrec(hw, USER_BAP,
1430 HERMES_RID_CNFROAMINGMODE,
1431 roaming_flag);
1432 break;
1433 case FIRMWARE_TYPE_SYMBOL:
1434 err = HERMES_WRITE_RECORD(hw, USER_BAP,
1435 HERMES_RID_CNFMANDATORYBSSID_SYMBOL,
1436 &priv->desired_bssid);
1437 break;
1438 }
1439 return err;
1440 }
1441
1442 /* Change the WEP keys and/or the current keys. Can be called
1443 * either from __orinoco_hw_setup_wep() or directly from
1444 * orinoco_ioctl_setiwencode(). In the later case the association
1445 * with the AP is not broken (if the firmware can handle it),
1446 * which is needed for 802.1x implementations. */
1447 static int __orinoco_hw_setup_wepkeys(struct orinoco_private *priv)
1448 {
1449 hermes_t *hw = &priv->hw;
1450 int err = 0;
1451
1452 switch (priv->firmware_type) {
1453 case FIRMWARE_TYPE_AGERE:
1454 err = HERMES_WRITE_RECORD(hw, USER_BAP,
1455 HERMES_RID_CNFWEPKEYS_AGERE,
1456 &priv->keys);
1457 if (err)
1458 return err;
1459 err = hermes_write_wordrec(hw, USER_BAP,
1460 HERMES_RID_CNFTXKEY_AGERE,
1461 priv->tx_key);
1462 if (err)
1463 return err;
1464 break;
1465 case FIRMWARE_TYPE_INTERSIL:
1466 case FIRMWARE_TYPE_SYMBOL:
1467 {
1468 int keylen;
1469 int i;
1470
1471 /* Force uniform key length to work around firmware bugs */
1472 keylen = le16_to_cpu(priv->keys[priv->tx_key].len);
1473
1474 if (keylen > LARGE_KEY_SIZE) {
1475 printk(KERN_ERR "%s: BUG: Key %d has oversize length %d.\n",
1476 priv->ndev->name, priv->tx_key, keylen);
1477 return -E2BIG;
1478 }
1479
1480 /* Write all 4 keys */
1481 for(i = 0; i < ORINOCO_MAX_KEYS; i++) {
1482 err = hermes_write_ltv(hw, USER_BAP,
1483 HERMES_RID_CNFDEFAULTKEY0 + i,
1484 HERMES_BYTES_TO_RECLEN(keylen),
1485 priv->keys[i].data);
1486 if (err)
1487 return err;
1488 }
1489
1490 /* Write the index of the key used in transmission */
1491 err = hermes_write_wordrec(hw, USER_BAP,
1492 HERMES_RID_CNFWEPDEFAULTKEYID,
1493 priv->tx_key);
1494 if (err)
1495 return err;
1496 }
1497 break;
1498 }
1499
1500 return 0;
1501 }
1502
1503 static int __orinoco_hw_setup_wep(struct orinoco_private *priv)
1504 {
1505 hermes_t *hw = &priv->hw;
1506 int err = 0;
1507 int master_wep_flag;
1508 int auth_flag;
1509
1510 if (priv->wep_on)
1511 __orinoco_hw_setup_wepkeys(priv);
1512
1513 if (priv->wep_restrict)
1514 auth_flag = HERMES_AUTH_SHARED_KEY;
1515 else
1516 auth_flag = HERMES_AUTH_OPEN;
1517
1518 switch (priv->firmware_type) {
1519 case FIRMWARE_TYPE_AGERE: /* Agere style WEP */
1520 if (priv->wep_on) {
1521 /* Enable the shared-key authentication. */
1522 err = hermes_write_wordrec(hw, USER_BAP,
1523 HERMES_RID_CNFAUTHENTICATION_AGERE,
1524 auth_flag);
1525 }
1526 err = hermes_write_wordrec(hw, USER_BAP,
1527 HERMES_RID_CNFWEPENABLED_AGERE,
1528 priv->wep_on);
1529 if (err)
1530 return err;
1531 break;
1532
1533 case FIRMWARE_TYPE_INTERSIL: /* Intersil style WEP */
1534 case FIRMWARE_TYPE_SYMBOL: /* Symbol style WEP */
1535 if (priv->wep_on) {
1536 if (priv->wep_restrict ||
1537 (priv->firmware_type == FIRMWARE_TYPE_SYMBOL))
1538 master_wep_flag = HERMES_WEP_PRIVACY_INVOKED |
1539 HERMES_WEP_EXCL_UNENCRYPTED;
1540 else
1541 master_wep_flag = HERMES_WEP_PRIVACY_INVOKED;
1542
1543 err = hermes_write_wordrec(hw, USER_BAP,
1544 HERMES_RID_CNFAUTHENTICATION,
1545 auth_flag);
1546 if (err)
1547 return err;
1548 } else
1549 master_wep_flag = 0;
1550
1551 if (priv->iw_mode == IW_MODE_MONITOR)
1552 master_wep_flag |= HERMES_WEP_HOST_DECRYPT;
1553
1554 /* Master WEP setting : on/off */
1555 err = hermes_write_wordrec(hw, USER_BAP,
1556 HERMES_RID_CNFWEPFLAGS_INTERSIL,
1557 master_wep_flag);
1558 if (err)
1559 return err;
1560
1561 break;
1562 }
1563
1564 return 0;
1565 }
1566
1567 static int __orinoco_program_rids(struct net_device *dev)
1568 {
1569 struct orinoco_private *priv = netdev_priv(dev);
1570 hermes_t *hw = &priv->hw;
1571 int err;
1572 struct hermes_idstring idbuf;
1573
1574 /* Set the MAC address */
1575 err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFOWNMACADDR,
1576 HERMES_BYTES_TO_RECLEN(ETH_ALEN), dev->dev_addr);
1577 if (err) {
1578 printk(KERN_ERR "%s: Error %d setting MAC address\n",
1579 dev->name, err);
1580 return err;
1581 }
1582
1583 /* Set up the link mode */
1584 err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFPORTTYPE,
1585 priv->port_type);
1586 if (err) {
1587 printk(KERN_ERR "%s: Error %d setting port type\n",
1588 dev->name, err);
1589 return err;
1590 }
1591 /* Set the channel/frequency */
1592 if (priv->channel != 0 && priv->iw_mode != IW_MODE_INFRA) {
1593 err = hermes_write_wordrec(hw, USER_BAP,
1594 HERMES_RID_CNFOWNCHANNEL,
1595 priv->channel);
1596 if (err) {
1597 printk(KERN_ERR "%s: Error %d setting channel %d\n",
1598 dev->name, err, priv->channel);
1599 return err;
1600 }
1601 }
1602
1603 if (priv->has_ibss) {
1604 u16 createibss;
1605
1606 if ((strlen(priv->desired_essid) == 0) && (priv->createibss)) {
1607 printk(KERN_WARNING "%s: This firmware requires an "
1608 "ESSID in IBSS-Ad-Hoc mode.\n", dev->name);
1609 /* With wvlan_cs, in this case, we would crash.
1610 * hopefully, this driver will behave better...
1611 * Jean II */
1612 createibss = 0;
1613 } else {
1614 createibss = priv->createibss;
1615 }
1616
1617 err = hermes_write_wordrec(hw, USER_BAP,
1618 HERMES_RID_CNFCREATEIBSS,
1619 createibss);
1620 if (err) {
1621 printk(KERN_ERR "%s: Error %d setting CREATEIBSS\n",
1622 dev->name, err);
1623 return err;
1624 }
1625 }
1626
1627 /* Set the desired BSSID */
1628 err = __orinoco_hw_set_wap(priv);
1629 if (err) {
1630 printk(KERN_ERR "%s: Error %d setting AP address\n",
1631 dev->name, err);
1632 return err;
1633 }
1634 /* Set the desired ESSID */
1635 idbuf.len = cpu_to_le16(strlen(priv->desired_essid));
1636 memcpy(&idbuf.val, priv->desired_essid, sizeof(idbuf.val));
1637 /* WinXP wants partner to configure OWNSSID even in IBSS mode. (jimc) */
1638 err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFOWNSSID,
1639 HERMES_BYTES_TO_RECLEN(strlen(priv->desired_essid)+2),
1640 &idbuf);
1641 if (err) {
1642 printk(KERN_ERR "%s: Error %d setting OWNSSID\n",
1643 dev->name, err);
1644 return err;
1645 }
1646 err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFDESIREDSSID,
1647 HERMES_BYTES_TO_RECLEN(strlen(priv->desired_essid)+2),
1648 &idbuf);
1649 if (err) {
1650 printk(KERN_ERR "%s: Error %d setting DESIREDSSID\n",
1651 dev->name, err);
1652 return err;
1653 }
1654
1655 /* Set the station name */
1656 idbuf.len = cpu_to_le16(strlen(priv->nick));
1657 memcpy(&idbuf.val, priv->nick, sizeof(idbuf.val));
1658 err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFOWNNAME,
1659 HERMES_BYTES_TO_RECLEN(strlen(priv->nick)+2),
1660 &idbuf);
1661 if (err) {
1662 printk(KERN_ERR "%s: Error %d setting nickname\n",
1663 dev->name, err);
1664 return err;
1665 }
1666
1667 /* Set AP density */
1668 if (priv->has_sensitivity) {
1669 err = hermes_write_wordrec(hw, USER_BAP,
1670 HERMES_RID_CNFSYSTEMSCALE,
1671 priv->ap_density);
1672 if (err) {
1673 printk(KERN_WARNING "%s: Error %d setting SYSTEMSCALE. "
1674 "Disabling sensitivity control\n",
1675 dev->name, err);
1676
1677 priv->has_sensitivity = 0;
1678 }
1679 }
1680
1681 /* Set RTS threshold */
1682 err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFRTSTHRESHOLD,
1683 priv->rts_thresh);
1684 if (err) {
1685 printk(KERN_ERR "%s: Error %d setting RTS threshold\n",
1686 dev->name, err);
1687 return err;
1688 }
1689
1690 /* Set fragmentation threshold or MWO robustness */
1691 if (priv->has_mwo)
1692 err = hermes_write_wordrec(hw, USER_BAP,
1693 HERMES_RID_CNFMWOROBUST_AGERE,
1694 priv->mwo_robust);
1695 else
1696 err = hermes_write_wordrec(hw, USER_BAP,
1697 HERMES_RID_CNFFRAGMENTATIONTHRESHOLD,
1698 priv->frag_thresh);
1699 if (err) {
1700 printk(KERN_ERR "%s: Error %d setting fragmentation\n",
1701 dev->name, err);
1702 return err;
1703 }
1704
1705 /* Set bitrate */
1706 err = __orinoco_hw_set_bitrate(priv);
1707 if (err) {
1708 printk(KERN_ERR "%s: Error %d setting bitrate\n",
1709 dev->name, err);
1710 return err;
1711 }
1712
1713 /* Set power management */
1714 if (priv->has_pm) {
1715 err = hermes_write_wordrec(hw, USER_BAP,
1716 HERMES_RID_CNFPMENABLED,
1717 priv->pm_on);
1718 if (err) {
1719 printk(KERN_ERR "%s: Error %d setting up PM\n",
1720 dev->name, err);
1721 return err;
1722 }
1723
1724 err = hermes_write_wordrec(hw, USER_BAP,
1725 HERMES_RID_CNFMULTICASTRECEIVE,
1726 priv->pm_mcast);
1727 if (err) {
1728 printk(KERN_ERR "%s: Error %d setting up PM\n",
1729 dev->name, err);
1730 return err;
1731 }
1732 err = hermes_write_wordrec(hw, USER_BAP,
1733 HERMES_RID_CNFMAXSLEEPDURATION,
1734 priv->pm_period);
1735 if (err) {
1736 printk(KERN_ERR "%s: Error %d setting up PM\n",
1737 dev->name, err);
1738 return err;
1739 }
1740 err = hermes_write_wordrec(hw, USER_BAP,
1741 HERMES_RID_CNFPMHOLDOVERDURATION,
1742 priv->pm_timeout);
1743 if (err) {
1744 printk(KERN_ERR "%s: Error %d setting up PM\n",
1745 dev->name, err);
1746 return err;
1747 }
1748 }
1749
1750 /* Set preamble - only for Symbol so far... */
1751 if (priv->has_preamble) {
1752 err = hermes_write_wordrec(hw, USER_BAP,
1753 HERMES_RID_CNFPREAMBLE_SYMBOL,
1754 priv->preamble);
1755 if (err) {
1756 printk(KERN_ERR "%s: Error %d setting preamble\n",
1757 dev->name, err);
1758 return err;
1759 }
1760 }
1761
1762 /* Set up encryption */
1763 if (priv->has_wep) {
1764 err = __orinoco_hw_setup_wep(priv);
1765 if (err) {
1766 printk(KERN_ERR "%s: Error %d activating WEP\n",
1767 dev->name, err);
1768 return err;
1769 }
1770 }
1771
1772 if (priv->iw_mode == IW_MODE_MONITOR) {
1773 /* Enable monitor mode */
1774 dev->type = ARPHRD_IEEE80211;
1775 err = hermes_docmd_wait(hw, HERMES_CMD_TEST |
1776 HERMES_TEST_MONITOR, 0, NULL);
1777 } else {
1778 /* Disable monitor mode */
1779 dev->type = ARPHRD_ETHER;
1780 err = hermes_docmd_wait(hw, HERMES_CMD_TEST |
1781 HERMES_TEST_STOP, 0, NULL);
1782 }
1783 if (err)
1784 return err;
1785
1786 /* Set promiscuity / multicast*/
1787 priv->promiscuous = 0;
1788 priv->mc_count = 0;
1789
1790 /* FIXME: what about netif_tx_lock */
1791 __orinoco_set_multicast_list(dev);
1792
1793 return 0;
1794 }
1795
1796 /* FIXME: return int? */
1797 static void
1798 __orinoco_set_multicast_list(struct net_device *dev)
1799 {
1800 struct orinoco_private *priv = netdev_priv(dev);
1801 hermes_t *hw = &priv->hw;
1802 int err = 0;
1803 int promisc, mc_count;
1804
1805 /* The Hermes doesn't seem to have an allmulti mode, so we go
1806 * into promiscuous mode and let the upper levels deal. */
1807 if ( (dev->flags & IFF_PROMISC) || (dev->flags & IFF_ALLMULTI) ||
1808 (dev->mc_count > MAX_MULTICAST(priv)) ) {
1809 promisc = 1;
1810 mc_count = 0;
1811 } else {
1812 promisc = 0;
1813 mc_count = dev->mc_count;
1814 }
1815
1816 if (promisc != priv->promiscuous) {
1817 err = hermes_write_wordrec(hw, USER_BAP,
1818 HERMES_RID_CNFPROMISCUOUSMODE,
1819 promisc);
1820 if (err) {
1821 printk(KERN_ERR "%s: Error %d setting PROMISCUOUSMODE to 1.\n",
1822 dev->name, err);
1823 } else
1824 priv->promiscuous = promisc;
1825 }
1826
1827 if (! promisc && (mc_count || priv->mc_count) ) {
1828 struct dev_mc_list *p = dev->mc_list;
1829 struct hermes_multicast mclist;
1830 int i;
1831
1832 for (i = 0; i < mc_count; i++) {
1833 /* paranoia: is list shorter than mc_count? */
1834 BUG_ON(! p);
1835 /* paranoia: bad address size in list? */
1836 BUG_ON(p->dmi_addrlen != ETH_ALEN);
1837
1838 memcpy(mclist.addr[i], p->dmi_addr, ETH_ALEN);
1839 p = p->next;
1840 }
1841
1842 if (p)
1843 printk(KERN_WARNING "%s: Multicast list is "
1844 "longer than mc_count\n", dev->name);
1845
1846 err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFGROUPADDRESSES,
1847 HERMES_BYTES_TO_RECLEN(priv->mc_count * ETH_ALEN),
1848 &mclist);
1849 if (err)
1850 printk(KERN_ERR "%s: Error %d setting multicast list.\n",
1851 dev->name, err);
1852 else
1853 priv->mc_count = mc_count;
1854 }
1855
1856 /* Since we can set the promiscuous flag when it wasn't asked
1857 for, make sure the net_device knows about it. */
1858 if (priv->promiscuous)
1859 dev->flags |= IFF_PROMISC;
1860 else
1861 dev->flags &= ~IFF_PROMISC;
1862 }
1863
1864 /* This must be called from user context, without locks held - use
1865 * schedule_work() */
1866 static void orinoco_reset(struct net_device *dev)
1867 {
1868 struct orinoco_private *priv = netdev_priv(dev);
1869 struct hermes *hw = &priv->hw;
1870 int err;
1871 unsigned long flags;
1872
1873 if (orinoco_lock(priv, &flags) != 0)
1874 /* When the hardware becomes available again, whatever
1875 * detects that is responsible for re-initializing
1876 * it. So no need for anything further */
1877 return;
1878
1879 netif_stop_queue(dev);
1880
1881 /* Shut off interrupts. Depending on what state the hardware
1882 * is in, this might not work, but we'll try anyway */
1883 hermes_set_irqmask(hw, 0);
1884 hermes_write_regn(hw, EVACK, 0xffff);
1885
1886 priv->hw_unavailable++;
1887 priv->last_linkstatus = 0xffff; /* firmware will have to reassociate */
1888 netif_carrier_off(dev);
1889
1890 orinoco_unlock(priv, &flags);
1891
1892 /* Scanning support: Cleanup of driver struct */
1893 kfree(priv->scan_result);
1894 priv->scan_result = NULL;
1895 priv->scan_inprogress = 0;
1896
1897 if (priv->hard_reset) {
1898 err = (*priv->hard_reset)(priv);
1899 if (err) {
1900 printk(KERN_ERR "%s: orinoco_reset: Error %d "
1901 "performing hard reset\n", dev->name, err);
1902 goto disable;
1903 }
1904 }
1905
1906 err = orinoco_reinit_firmware(dev);
1907 if (err) {
1908 printk(KERN_ERR "%s: orinoco_reset: Error %d re-initializing firmware\n",
1909 dev->name, err);
1910 goto disable;
1911 }
1912
1913 spin_lock_irq(&priv->lock); /* This has to be called from user context */
1914
1915 priv->hw_unavailable--;
1916
1917 /* priv->open or priv->hw_unavailable might have changed while
1918 * we dropped the lock */
1919 if (priv->open && (! priv->hw_unavailable)) {
1920 err = __orinoco_up(dev);
1921 if (err) {
1922 printk(KERN_ERR "%s: orinoco_reset: Error %d reenabling card\n",
1923 dev->name, err);
1924 } else
1925 dev->trans_start = jiffies;
1926 }
1927
1928 spin_unlock_irq(&priv->lock);
1929
1930 return;
1931 disable:
1932 hermes_set_irqmask(hw, 0);
1933 netif_device_detach(dev);
1934 printk(KERN_ERR "%s: Device has been disabled!\n", dev->name);
1935 }
1936
1937 /********************************************************************/
1938 /* Interrupt handler */
1939 /********************************************************************/
1940
1941 static void __orinoco_ev_tick(struct net_device *dev, hermes_t *hw)
1942 {
1943 printk(KERN_DEBUG "%s: TICK\n", dev->name);
1944 }
1945
1946 static void __orinoco_ev_wterr(struct net_device *dev, hermes_t *hw)
1947 {
1948 /* This seems to happen a fair bit under load, but ignoring it
1949 seems to work fine...*/
1950 printk(KERN_DEBUG "%s: MAC controller error (WTERR). Ignoring.\n",
1951 dev->name);
1952 }
1953
1954 irqreturn_t orinoco_interrupt(int irq, void *dev_id, struct pt_regs *regs)
1955 {
1956 struct net_device *dev = (struct net_device *)dev_id;
1957 struct orinoco_private *priv = netdev_priv(dev);
1958 hermes_t *hw = &priv->hw;
1959 int count = MAX_IRQLOOPS_PER_IRQ;
1960 u16 evstat, events;
1961 /* These are used to detect a runaway interrupt situation */
1962 /* If we get more than MAX_IRQLOOPS_PER_JIFFY iterations in a jiffy,
1963 * we panic and shut down the hardware */
1964 static int last_irq_jiffy = 0; /* jiffies value the last time
1965 * we were called */
1966 static int loops_this_jiffy = 0;
1967 unsigned long flags;
1968
1969 if (orinoco_lock(priv, &flags) != 0) {
1970 /* If hw is unavailable - we don't know if the irq was
1971 * for us or not */
1972 return IRQ_HANDLED;
1973 }
1974
1975 evstat = hermes_read_regn(hw, EVSTAT);
1976 events = evstat & hw->inten;
1977 if (! events) {
1978 orinoco_unlock(priv, &flags);
1979 return IRQ_NONE;
1980 }
1981
1982 if (jiffies != last_irq_jiffy)
1983 loops_this_jiffy = 0;
1984 last_irq_jiffy = jiffies;
1985
1986 while (events && count--) {
1987 if (++loops_this_jiffy > MAX_IRQLOOPS_PER_JIFFY) {
1988 printk(KERN_WARNING "%s: IRQ handler is looping too "
1989 "much! Resetting.\n", dev->name);
1990 /* Disable interrupts for now */
1991 hermes_set_irqmask(hw, 0);
1992 schedule_work(&priv->reset_work);
1993 break;
1994 }
1995
1996 /* Check the card hasn't been removed */
1997 if (! hermes_present(hw)) {
1998 DEBUG(0, "orinoco_interrupt(): card removed\n");
1999 break;
2000 }
2001
2002 if (events & HERMES_EV_TICK)
2003 __orinoco_ev_tick(dev, hw);
2004 if (events & HERMES_EV_WTERR)
2005 __orinoco_ev_wterr(dev, hw);
2006 if (events & HERMES_EV_INFDROP)
2007 __orinoco_ev_infdrop(dev, hw);
2008 if (events & HERMES_EV_INFO)
2009 __orinoco_ev_info(dev, hw);
2010 if (events & HERMES_EV_RX)
2011 __orinoco_ev_rx(dev, hw);
2012 if (events & HERMES_EV_TXEXC)
2013 __orinoco_ev_txexc(dev, hw);
2014 if (events & HERMES_EV_TX)
2015 __orinoco_ev_tx(dev, hw);
2016 if (events & HERMES_EV_ALLOC)
2017 __orinoco_ev_alloc(dev, hw);
2018
2019 hermes_write_regn(hw, EVACK, evstat);
2020
2021 evstat = hermes_read_regn(hw, EVSTAT);
2022 events = evstat & hw->inten;
2023 };
2024
2025 orinoco_unlock(priv, &flags);
2026 return IRQ_HANDLED;
2027 }
2028
2029 /********************************************************************/
2030 /* Initialization */
2031 /********************************************************************/
2032
2033 struct comp_id {
2034 u16 id, variant, major, minor;
2035 } __attribute__ ((packed));
2036
2037 static inline fwtype_t determine_firmware_type(struct comp_id *nic_id)
2038 {
2039 if (nic_id->id < 0x8000)
2040 return FIRMWARE_TYPE_AGERE;
2041 else if (nic_id->id == 0x8000 && nic_id->major == 0)
2042 return FIRMWARE_TYPE_SYMBOL;
2043 else
2044 return FIRMWARE_TYPE_INTERSIL;
2045 }
2046
2047 /* Set priv->firmware type, determine firmware properties */
2048 static int determine_firmware(struct net_device *dev)
2049 {
2050 struct orinoco_private *priv = netdev_priv(dev);
2051 hermes_t *hw = &priv->hw;
2052 int err;
2053 struct comp_id nic_id, sta_id;
2054 unsigned int firmver;
2055 char tmp[SYMBOL_MAX_VER_LEN+1];
2056
2057 /* Get the hardware version */
2058 err = HERMES_READ_RECORD(hw, USER_BAP, HERMES_RID_NICID, &nic_id);
2059 if (err) {
2060 printk(KERN_ERR "%s: Cannot read hardware identity: error %d\n",
2061 dev->name, err);
2062 return err;
2063 }
2064
2065 le16_to_cpus(&nic_id.id);
2066 le16_to_cpus(&nic_id.variant);
2067 le16_to_cpus(&nic_id.major);
2068 le16_to_cpus(&nic_id.minor);
2069 printk(KERN_DEBUG "%s: Hardware identity %04x:%04x:%04x:%04x\n",
2070 dev->name, nic_id.id, nic_id.variant,
2071 nic_id.major, nic_id.minor);
2072
2073 priv->firmware_type = determine_firmware_type(&nic_id);
2074
2075 /* Get the firmware version */
2076 err = HERMES_READ_RECORD(hw, USER_BAP, HERMES_RID_STAID, &sta_id);
2077 if (err) {
2078 printk(KERN_ERR "%s: Cannot read station identity: error %d\n",
2079 dev->name, err);
2080 return err;
2081 }
2082
2083 le16_to_cpus(&sta_id.id);
2084 le16_to_cpus(&sta_id.variant);
2085 le16_to_cpus(&sta_id.major);
2086 le16_to_cpus(&sta_id.minor);
2087 printk(KERN_DEBUG "%s: Station identity %04x:%04x:%04x:%04x\n",
2088 dev->name, sta_id.id, sta_id.variant,
2089 sta_id.major, sta_id.minor);
2090
2091 switch (sta_id.id) {
2092 case 0x15:
2093 printk(KERN_ERR "%s: Primary firmware is active\n",
2094 dev->name);
2095 return -ENODEV;
2096 case 0x14b:
2097 printk(KERN_ERR "%s: Tertiary firmware is active\n",
2098 dev->name);
2099 return -ENODEV;
2100 case 0x1f: /* Intersil, Agere, Symbol Spectrum24 */
2101 case 0x21: /* Symbol Spectrum24 Trilogy */
2102 break;
2103 default:
2104 printk(KERN_NOTICE "%s: Unknown station ID, please report\n",
2105 dev->name);
2106 break;
2107 }
2108
2109 /* Default capabilities */
2110 priv->has_sensitivity = 1;
2111 priv->has_mwo = 0;
2112 priv->has_preamble = 0;
2113 priv->has_port3 = 1;
2114 priv->has_ibss = 1;
2115 priv->has_wep = 0;
2116 priv->has_big_wep = 0;
2117
2118 /* Determine capabilities from the firmware version */
2119 switch (priv->firmware_type) {
2120 case FIRMWARE_TYPE_AGERE:
2121 /* Lucent Wavelan IEEE, Lucent Orinoco, Cabletron RoamAbout,
2122 ELSA, Melco, HP, IBM, Dell 1150, Compaq 110/210 */
2123 snprintf(priv->fw_name, sizeof(priv->fw_name) - 1,
2124 "Lucent/Agere %d.%02d", sta_id.major, sta_id.minor);
2125
2126 firmver = ((unsigned long)sta_id.major << 16) | sta_id.minor;
2127
2128 priv->has_ibss = (firmver >= 0x60006);
2129 priv->has_wep = (firmver >= 0x40020);
2130 priv->has_big_wep = 1; /* FIXME: this is wrong - how do we tell
2131 Gold cards from the others? */
2132 priv->has_mwo = (firmver >= 0x60000);
2133 priv->has_pm = (firmver >= 0x40020); /* Don't work in 7.52 ? */
2134 priv->ibss_port = 1;
2135 priv->has_hostscan = (firmver >= 0x8000a);
2136 priv->broken_monitor = (firmver >= 0x80000);
2137
2138 /* Tested with Agere firmware :
2139 * 1.16 ; 4.08 ; 4.52 ; 6.04 ; 6.16 ; 7.28 => Jean II
2140 * Tested CableTron firmware : 4.32 => Anton */
2141 break;
2142 case FIRMWARE_TYPE_SYMBOL:
2143 /* Symbol , 3Com AirConnect, Intel, Ericsson WLAN */
2144 /* Intel MAC : 00:02:B3:* */
2145 /* 3Com MAC : 00:50:DA:* */
2146 memset(tmp, 0, sizeof(tmp));
2147 /* Get the Symbol firmware version */
2148 err = hermes_read_ltv(hw, USER_BAP,
2149 HERMES_RID_SECONDARYVERSION_SYMBOL,
2150 SYMBOL_MAX_VER_LEN, NULL, &tmp);
2151 if (err) {
2152 printk(KERN_WARNING
2153 "%s: Error %d reading Symbol firmware info. Wildly guessing capabilities...\n",
2154 dev->name, err);
2155 firmver = 0;
2156 tmp[0] = '\0';
2157 } else {
2158 /* The firmware revision is a string, the format is
2159 * something like : "V2.20-01".
2160 * Quick and dirty parsing... - Jean II
2161 */
2162 firmver = ((tmp[1] - '0') << 16) | ((tmp[3] - '0') << 12)
2163 | ((tmp[4] - '0') << 8) | ((tmp[6] - '0') << 4)
2164 | (tmp[7] - '0');
2165
2166 tmp[SYMBOL_MAX_VER_LEN] = '\0';
2167 }
2168
2169 snprintf(priv->fw_name, sizeof(priv->fw_name) - 1,
2170 "Symbol %s", tmp);
2171
2172 priv->has_ibss = (firmver >= 0x20000);
2173 priv->has_wep = (firmver >= 0x15012);
2174 priv->has_big_wep = (firmver >= 0x20000);
2175 priv->has_pm = (firmver >= 0x20000 && firmver < 0x22000) ||
2176 (firmver >= 0x29000 && firmver < 0x30000) ||
2177 firmver >= 0x31000;
2178 priv->has_preamble = (firmver >= 0x20000);
2179 priv->ibss_port = 4;
2180 priv->broken_disableport = (firmver == 0x25013) ||
2181 (firmver >= 0x30000 && firmver <= 0x31000);
2182 priv->has_hostscan = (firmver >= 0x31001) ||
2183 (firmver >= 0x29057 && firmver < 0x30000);
2184 /* Tested with Intel firmware : 0x20015 => Jean II */
2185 /* Tested with 3Com firmware : 0x15012 & 0x22001 => Jean II */
2186 break;
2187 case FIRMWARE_TYPE_INTERSIL:
2188 /* D-Link, Linksys, Adtron, ZoomAir, and many others...
2189 * Samsung, Compaq 100/200 and Proxim are slightly
2190 * different and less well tested */
2191 /* D-Link MAC : 00:40:05:* */
2192 /* Addtron MAC : 00:90:D1:* */
2193 snprintf(priv->fw_name, sizeof(priv->fw_name) - 1,
2194 "Intersil %d.%d.%d", sta_id.major, sta_id.minor,
2195 sta_id.variant);
2196
2197 firmver = ((unsigned long)sta_id.major << 16) |
2198 ((unsigned long)sta_id.minor << 8) | sta_id.variant;
2199
2200 priv->has_ibss = (firmver >= 0x000700); /* FIXME */
2201 priv->has_big_wep = priv->has_wep = (firmver >= 0x000800);
2202 priv->has_pm = (firmver >= 0x000700);
2203 priv->has_hostscan = (firmver >= 0x010301);
2204
2205 if (firmver >= 0x000800)
2206 priv->ibss_port = 0;
2207 else {
2208 printk(KERN_NOTICE "%s: Intersil firmware earlier "
2209 "than v0.8.x - several features not supported\n",
2210 dev->name);
2211 priv->ibss_port = 1;
2212 }
2213 break;
2214 }
2215 printk(KERN_DEBUG "%s: Firmware determined as %s\n", dev->name,
2216 priv->fw_name);
2217
2218 return 0;
2219 }
2220
2221 static int orinoco_init(struct net_device *dev)
2222 {
2223 struct orinoco_private *priv = netdev_priv(dev);
2224 hermes_t *hw = &priv->hw;
2225 int err = 0;
2226 struct hermes_idstring nickbuf;
2227 u16 reclen;
2228 int len;
2229
2230 /* No need to lock, the hw_unavailable flag is already set in
2231 * alloc_orinocodev() */
2232 priv->nicbuf_size = IEEE80211_FRAME_LEN + ETH_HLEN;
2233
2234 /* Initialize the firmware */
2235 err = hermes_init(hw);
2236 if (err != 0) {
2237 printk(KERN_ERR "%s: failed to initialize firmware (err = %d)\n",
2238 dev->name, err);
2239 goto out;
2240 }
2241
2242 err = determine_firmware(dev);
2243 if (err != 0) {
2244 printk(KERN_ERR "%s: Incompatible firmware, aborting\n",
2245 dev->name);
2246 goto out;
2247 }
2248
2249 if (priv->has_port3)
2250 printk(KERN_DEBUG "%s: Ad-hoc demo mode supported\n", dev->name);
2251 if (priv->has_ibss)
2252 printk(KERN_DEBUG "%s: IEEE standard IBSS ad-hoc mode supported\n",
2253 dev->name);
2254 if (priv->has_wep) {
2255 printk(KERN_DEBUG "%s: WEP supported, ", dev->name);
2256 if (priv->has_big_wep)
2257 printk("104-bit key\n");
2258 else
2259 printk("40-bit key\n");
2260 }
2261
2262 /* Get the MAC address */
2263 err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CNFOWNMACADDR,
2264 ETH_ALEN, NULL, dev->dev_addr);
2265 if (err) {
2266 printk(KERN_WARNING "%s: failed to read MAC address!\n",
2267 dev->name);
2268 goto out;
2269 }
2270
2271 printk(KERN_DEBUG "%s: MAC address %02X:%02X:%02X:%02X:%02X:%02X\n",
2272 dev->name, dev->dev_addr[0], dev->dev_addr[1],
2273 dev->dev_addr[2], dev->dev_addr[3], dev->dev_addr[4],
2274 dev->dev_addr[5]);
2275
2276 /* Get the station name */
2277 err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CNFOWNNAME,
2278 sizeof(nickbuf), &reclen, &nickbuf);
2279 if (err) {
2280 printk(KERN_ERR "%s: failed to read station name\n",
2281 dev->name);
2282 goto out;
2283 }
2284 if (nickbuf.len)
2285 len = min(IW_ESSID_MAX_SIZE, (int)le16_to_cpu(nickbuf.len));
2286 else
2287 len = min(IW_ESSID_MAX_SIZE, 2 * reclen);
2288 memcpy(priv->nick, &nickbuf.val, len);
2289 priv->nick[len] = '\0';
2290
2291 printk(KERN_DEBUG "%s: Station name \"%s\"\n", dev->name, priv->nick);
2292
2293 err = orinoco_allocate_fid(dev);
2294 if (err) {
2295 printk(KERN_ERR "%s: failed to allocate NIC buffer!\n",
2296 dev->name);
2297 goto out;
2298 }
2299
2300 /* Get allowed channels */
2301 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CHANNELLIST,
2302 &priv->channel_mask);
2303 if (err) {
2304 printk(KERN_ERR "%s: failed to read channel list!\n",
2305 dev->name);
2306 goto out;
2307 }
2308
2309 /* Get initial AP density */
2310 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFSYSTEMSCALE,
2311 &priv->ap_density);
2312 if (err || priv->ap_density < 1 || priv->ap_density > 3) {
2313 priv->has_sensitivity = 0;
2314 }
2315
2316 /* Get initial RTS threshold */
2317 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFRTSTHRESHOLD,
2318 &priv->rts_thresh);
2319 if (err) {
2320 printk(KERN_ERR "%s: failed to read RTS threshold!\n",
2321 dev->name);
2322 goto out;
2323 }
2324
2325 /* Get initial fragmentation settings */
2326 if (priv->has_mwo)
2327 err = hermes_read_wordrec(hw, USER_BAP,
2328 HERMES_RID_CNFMWOROBUST_AGERE,
2329 &priv->mwo_robust);
2330 else
2331 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFFRAGMENTATIONTHRESHOLD,
2332 &priv->frag_thresh);
2333 if (err) {
2334 printk(KERN_ERR "%s: failed to read fragmentation settings!\n",
2335 dev->name);
2336 goto out;
2337 }
2338
2339 /* Power management setup */
2340 if (priv->has_pm) {
2341 priv->pm_on = 0;
2342 priv->pm_mcast = 1;
2343 err = hermes_read_wordrec(hw, USER_BAP,
2344 HERMES_RID_CNFMAXSLEEPDURATION,
2345 &priv->pm_period);
2346 if (err) {
2347 printk(KERN_ERR "%s: failed to read power management period!\n",
2348 dev->name);
2349 goto out;
2350 }
2351 err = hermes_read_wordrec(hw, USER_BAP,
2352 HERMES_RID_CNFPMHOLDOVERDURATION,
2353 &priv->pm_timeout);
2354 if (err) {
2355 printk(KERN_ERR "%s: failed to read power management timeout!\n",
2356 dev->name);
2357 goto out;
2358 }
2359 }
2360
2361 /* Preamble setup */
2362 if (priv->has_preamble) {
2363 err = hermes_read_wordrec(hw, USER_BAP,
2364 HERMES_RID_CNFPREAMBLE_SYMBOL,
2365 &priv->preamble);
2366 if (err)
2367 goto out;
2368 }
2369
2370 /* Set up the default configuration */
2371 priv->iw_mode = IW_MODE_INFRA;
2372 /* By default use IEEE/IBSS ad-hoc mode if we have it */
2373 priv->prefer_port3 = priv->has_port3 && (! priv->has_ibss);
2374 set_port_type(priv);
2375 priv->channel = 0; /* use firmware default */
2376
2377 priv->promiscuous = 0;
2378 priv->wep_on = 0;
2379 priv->tx_key = 0;
2380
2381 /* Make the hardware available, as long as it hasn't been
2382 * removed elsewhere (e.g. by PCMCIA hot unplug) */
2383 spin_lock_irq(&priv->lock);
2384 priv->hw_unavailable--;
2385 spin_unlock_irq(&priv->lock);
2386
2387 printk(KERN_DEBUG "%s: ready\n", dev->name);
2388
2389 out:
2390 return err;
2391 }
2392
2393 struct net_device *alloc_orinocodev(int sizeof_card,
2394 int (*hard_reset)(struct orinoco_private *))
2395 {
2396 struct net_device *dev;
2397 struct orinoco_private *priv;
2398
2399 dev = alloc_etherdev(sizeof(struct orinoco_private) + sizeof_card);
2400 if (! dev)
2401 return NULL;
2402 priv = netdev_priv(dev);
2403 priv->ndev = dev;
2404 if (sizeof_card)
2405 priv->card = (void *)((unsigned long)priv
2406 + sizeof(struct orinoco_private));
2407 else
2408 priv->card = NULL;
2409
2410 /* Setup / override net_device fields */
2411 dev->init = orinoco_init;
2412 dev->hard_start_xmit = orinoco_xmit;
2413 dev->tx_timeout = orinoco_tx_timeout;
2414 dev->watchdog_timeo = HZ; /* 1 second timeout */
2415 dev->get_stats = orinoco_get_stats;
2416 dev->ethtool_ops = &orinoco_ethtool_ops;
2417 dev->wireless_handlers = (struct iw_handler_def *)&orinoco_handler_def;
2418 #ifdef WIRELESS_SPY
2419 priv->wireless_data.spy_data = &priv->spy_data;
2420 dev->wireless_data = &priv->wireless_data;
2421 #endif
2422 dev->change_mtu = orinoco_change_mtu;
2423 dev->set_multicast_list = orinoco_set_multicast_list;
2424 /* we use the default eth_mac_addr for setting the MAC addr */
2425
2426 /* Set up default callbacks */
2427 dev->open = orinoco_open;
2428 dev->stop = orinoco_stop;
2429 priv->hard_reset = hard_reset;
2430
2431 spin_lock_init(&priv->lock);
2432 priv->open = 0;
2433 priv->hw_unavailable = 1; /* orinoco_init() must clear this
2434 * before anything else touches the
2435 * hardware */
2436 INIT_WORK(&priv->reset_work, (void (*)(void *))orinoco_reset, dev);
2437 INIT_WORK(&priv->join_work, (void (*)(void *))orinoco_join_ap, dev);
2438 INIT_WORK(&priv->wevent_work, (void (*)(void *))orinoco_send_wevents, dev);
2439
2440 netif_carrier_off(dev);
2441 priv->last_linkstatus = 0xffff;
2442
2443 return dev;
2444
2445 }
2446
2447 void free_orinocodev(struct net_device *dev)
2448 {
2449 struct orinoco_private *priv = netdev_priv(dev);
2450
2451 kfree(priv->scan_result);
2452 free_netdev(dev);
2453 }
2454
2455 /********************************************************************/
2456 /* Wireless extensions */
2457 /********************************************************************/
2458
2459 static int orinoco_hw_get_essid(struct orinoco_private *priv, int *active,
2460 char buf[IW_ESSID_MAX_SIZE+1])
2461 {
2462 hermes_t *hw = &priv->hw;
2463 int err = 0;
2464 struct hermes_idstring essidbuf;
2465 char *p = (char *)(&essidbuf.val);
2466 int len;
2467 unsigned long flags;
2468
2469 if (orinoco_lock(priv, &flags) != 0)
2470 return -EBUSY;
2471
2472 if (strlen(priv->desired_essid) > 0) {
2473 /* We read the desired SSID from the hardware rather
2474 than from priv->desired_essid, just in case the
2475 firmware is allowed to change it on us. I'm not
2476 sure about this */
2477 /* My guess is that the OWNSSID should always be whatever
2478 * we set to the card, whereas CURRENT_SSID is the one that
2479 * may change... - Jean II */
2480 u16 rid;
2481
2482 *active = 1;
2483
2484 rid = (priv->port_type == 3) ? HERMES_RID_CNFOWNSSID :
2485 HERMES_RID_CNFDESIREDSSID;
2486
2487 err = hermes_read_ltv(hw, USER_BAP, rid, sizeof(essidbuf),
2488 NULL, &essidbuf);
2489 if (err)
2490 goto fail_unlock;
2491 } else {
2492 *active = 0;
2493
2494 err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CURRENTSSID,
2495 sizeof(essidbuf), NULL, &essidbuf);
2496 if (err)
2497 goto fail_unlock;
2498 }
2499
2500 len = le16_to_cpu(essidbuf.len);
2501 BUG_ON(len > IW_ESSID_MAX_SIZE);
2502
2503 memset(buf, 0, IW_ESSID_MAX_SIZE+1);
2504 memcpy(buf, p, len);
2505 buf[len] = '\0';
2506
2507 fail_unlock:
2508 orinoco_unlock(priv, &flags);
2509
2510 return err;
2511 }
2512
2513 static long orinoco_hw_get_freq(struct orinoco_private *priv)
2514 {
2515
2516 hermes_t *hw = &priv->hw;
2517 int err = 0;
2518 u16 channel;
2519 long freq = 0;
2520 unsigned long flags;
2521
2522 if (orinoco_lock(priv, &flags) != 0)
2523 return -EBUSY;
2524
2525 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CURRENTCHANNEL, &channel);
2526 if (err)
2527 goto out;
2528
2529 /* Intersil firmware 1.3.5 returns 0 when the interface is down */
2530 if (channel == 0) {
2531 err = -EBUSY;
2532 goto out;
2533 }
2534
2535 if ( (channel < 1) || (channel > NUM_CHANNELS) ) {
2536 printk(KERN_WARNING "%s: Channel out of range (%d)!\n",
2537 priv->ndev->name, channel);
2538 err = -EBUSY;
2539 goto out;
2540
2541 }
2542 freq = channel_frequency[channel-1] * 100000;
2543
2544 out:
2545 orinoco_unlock(priv, &flags);
2546
2547 if (err > 0)
2548 err = -EBUSY;
2549 return err ? err : freq;
2550 }
2551
2552 static int orinoco_hw_get_bitratelist(struct orinoco_private *priv,
2553 int *numrates, s32 *rates, int max)
2554 {
2555 hermes_t *hw = &priv->hw;
2556 struct hermes_idstring list;
2557 unsigned char *p = (unsigned char *)&list.val;
2558 int err = 0;
2559 int num;
2560 int i;
2561 unsigned long flags;
2562
2563 if (orinoco_lock(priv, &flags) != 0)
2564 return -EBUSY;
2565
2566 err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_SUPPORTEDDATARATES,
2567 sizeof(list), NULL, &list);
2568 orinoco_unlock(priv, &flags);
2569
2570 if (err)
2571 return err;
2572
2573 num = le16_to_cpu(list.len);
2574 *numrates = num;
2575 num = min(num, max);
2576
2577 for (i = 0; i < num; i++) {
2578 rates[i] = (p[i] & 0x7f) * 500000; /* convert to bps */
2579 }
2580
2581 return 0;
2582 }
2583
2584 static int orinoco_ioctl_getname(struct net_device *dev,
2585 struct iw_request_info *info,
2586 char *name,
2587 char *extra)
2588 {
2589 struct orinoco_private *priv = netdev_priv(dev);
2590 int numrates;
2591 int err;
2592
2593 err = orinoco_hw_get_bitratelist(priv, &numrates, NULL, 0);
2594
2595 if (!err && (numrates > 2))
2596 strcpy(name, "IEEE 802.11b");
2597 else
2598 strcpy(name, "IEEE 802.11-DS");
2599
2600 return 0;
2601 }
2602
2603 static int orinoco_ioctl_setwap(struct net_device *dev,
2604 struct iw_request_info *info,
2605 struct sockaddr *ap_addr,
2606 char *extra)
2607 {
2608 struct orinoco_private *priv = netdev_priv(dev);
2609 int err = -EINPROGRESS; /* Call commit handler */
2610 unsigned long flags;
2611 static const u8 off_addr[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
2612 static const u8 any_addr[] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
2613
2614 if (orinoco_lock(priv, &flags) != 0)
2615 return -EBUSY;
2616
2617 /* Enable automatic roaming - no sanity checks are needed */
2618 if (memcmp(&ap_addr->sa_data, off_addr, ETH_ALEN) == 0 ||
2619 memcmp(&ap_addr->sa_data, any_addr, ETH_ALEN) == 0) {
2620 priv->bssid_fixed = 0;
2621 memset(priv->desired_bssid, 0, ETH_ALEN);
2622
2623 /* "off" means keep existing connection */
2624 if (ap_addr->sa_data[0] == 0) {
2625 __orinoco_hw_set_wap(priv);
2626 err = 0;
2627 }
2628 goto out;
2629 }
2630
2631 if (priv->firmware_type == FIRMWARE_TYPE_AGERE) {
2632 printk(KERN_WARNING "%s: Lucent/Agere firmware doesn't "
2633 "support manual roaming\n",
2634 dev->name);
2635 err = -EOPNOTSUPP;
2636 goto out;
2637 }
2638
2639 if (priv->iw_mode != IW_MODE_INFRA) {
2640 printk(KERN_WARNING "%s: Manual roaming supported only in "
2641 "managed mode\n", dev->name);
2642 err = -EOPNOTSUPP;
2643 goto out;
2644 }
2645
2646 /* Intersil firmware hangs without Desired ESSID */
2647 if (priv->firmware_type == FIRMWARE_TYPE_INTERSIL &&
2648 strlen(priv->desired_essid) == 0) {
2649 printk(KERN_WARNING "%s: Desired ESSID must be set for "
2650 "manual roaming\n", dev->name);
2651 err = -EOPNOTSUPP;
2652 goto out;
2653 }
2654
2655 /* Finally, enable manual roaming */
2656 priv->bssid_fixed = 1;
2657 memcpy(priv->desired_bssid, &ap_addr->sa_data, ETH_ALEN);
2658
2659 out:
2660 orinoco_unlock(priv, &flags);
2661 return err;
2662 }
2663
2664 static int orinoco_ioctl_getwap(struct net_device *dev,
2665 struct iw_request_info *info,
2666 struct sockaddr *ap_addr,
2667 char *extra)
2668 {
2669 struct orinoco_private *priv = netdev_priv(dev);
2670
2671 hermes_t *hw = &priv->hw;
2672 int err = 0;
2673 unsigned long flags;
2674
2675 if (orinoco_lock(priv, &flags) != 0)
2676 return -EBUSY;
2677
2678 ap_addr->sa_family = ARPHRD_ETHER;
2679 err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CURRENTBSSID,
2680 ETH_ALEN, NULL, ap_addr->sa_data);
2681
2682 orinoco_unlock(priv, &flags);
2683
2684 return err;
2685 }
2686
2687 static int orinoco_ioctl_setmode(struct net_device *dev,
2688 struct iw_request_info *info,
2689 u32 *mode,
2690 char *extra)
2691 {
2692 struct orinoco_private *priv = netdev_priv(dev);
2693 int err = -EINPROGRESS; /* Call commit handler */
2694 unsigned long flags;
2695
2696 if (priv->iw_mode == *mode)
2697 return 0;
2698
2699 if (orinoco_lock(priv, &flags) != 0)
2700 return -EBUSY;
2701
2702 switch (*mode) {
2703 case IW_MODE_ADHOC:
2704 if (!priv->has_ibss && !priv->has_port3)
2705 err = -EOPNOTSUPP;
2706 break;
2707
2708 case IW_MODE_INFRA:
2709 break;
2710
2711 case IW_MODE_MONITOR:
2712 if (priv->broken_monitor && !force_monitor) {
2713 printk(KERN_WARNING "%s: Monitor mode support is "
2714 "buggy in this firmware, not enabling\n",
2715 dev->name);
2716 err = -EOPNOTSUPP;
2717 }
2718 break;
2719
2720 default:
2721 err = -EOPNOTSUPP;
2722 break;
2723 }
2724
2725 if (err == -EINPROGRESS) {
2726 priv->iw_mode = *mode;
2727 set_port_type(priv);
2728 }
2729
2730 orinoco_unlock(priv, &flags);
2731
2732 return err;
2733 }
2734
2735 static int orinoco_ioctl_getmode(struct net_device *dev,
2736 struct iw_request_info *info,
2737 u32 *mode,
2738 char *extra)
2739 {
2740 struct orinoco_private *priv = netdev_priv(dev);
2741
2742 *mode = priv->iw_mode;
2743 return 0;
2744 }
2745
2746 static int orinoco_ioctl_getiwrange(struct net_device *dev,
2747 struct iw_request_info *info,
2748 struct iw_point *rrq,
2749 char *extra)
2750 {
2751 struct orinoco_private *priv = netdev_priv(dev);
2752 int err = 0;
2753 struct iw_range *range = (struct iw_range *) extra;
2754 int numrates;
2755 int i, k;
2756
2757 rrq->length = sizeof(struct iw_range);
2758 memset(range, 0, sizeof(struct iw_range));
2759
2760 range->we_version_compiled = WIRELESS_EXT;
2761 range->we_version_source = 14;
2762
2763 /* Set available channels/frequencies */
2764 range->num_channels = NUM_CHANNELS;
2765 k = 0;
2766 for (i = 0; i < NUM_CHANNELS; i++) {
2767 if (priv->channel_mask & (1 << i)) {
2768 range->freq[k].i = i + 1;
2769 range->freq[k].m = channel_frequency[i] * 100000;
2770 range->freq[k].e = 1;
2771 k++;
2772 }
2773
2774 if (k >= IW_MAX_FREQUENCIES)
2775 break;
2776 }
2777 range->num_frequency = k;
2778 range->sensitivity = 3;
2779
2780 if (priv->has_wep) {
2781 range->max_encoding_tokens = ORINOCO_MAX_KEYS;
2782 range->encoding_size[0] = SMALL_KEY_SIZE;
2783 range->num_encoding_sizes = 1;
2784
2785 if (priv->has_big_wep) {
2786 range->encoding_size[1] = LARGE_KEY_SIZE;
2787 range->num_encoding_sizes = 2;
2788 }
2789 }
2790
2791 if ((priv->iw_mode == IW_MODE_ADHOC) && (!SPY_NUMBER(priv))){
2792 /* Quality stats meaningless in ad-hoc mode */
2793 } else {
2794 range->max_qual.qual = 0x8b - 0x2f;
2795 range->max_qual.level = 0x2f - 0x95 - 1;
2796 range->max_qual.noise = 0x2f - 0x95 - 1;
2797 /* Need to get better values */
2798 range->avg_qual.qual = 0x24;
2799 range->avg_qual.level = 0xC2;
2800 range->avg_qual.noise = 0x9E;
2801 }
2802
2803 err = orinoco_hw_get_bitratelist(priv, &numrates,
2804 range->bitrate, IW_MAX_BITRATES);
2805 if (err)
2806 return err;
2807 range->num_bitrates = numrates;
2808
2809 /* Set an indication of the max TCP throughput in bit/s that we can
2810 * expect using this interface. May be use for QoS stuff...
2811 * Jean II */
2812 if (numrates > 2)
2813 range->throughput = 5 * 1000 * 1000; /* ~5 Mb/s */
2814 else
2815 range->throughput = 1.5 * 1000 * 1000; /* ~1.5 Mb/s */
2816
2817 range->min_rts = 0;
2818 range->max_rts = 2347;
2819 range->min_frag = 256;
2820 range->max_frag = 2346;
2821
2822 range->min_pmp = 0;
2823 range->max_pmp = 65535000;
2824 range->min_pmt = 0;
2825 range->max_pmt = 65535 * 1000; /* ??? */
2826 range->pmp_flags = IW_POWER_PERIOD;
2827 range->pmt_flags = IW_POWER_TIMEOUT;
2828 range->pm_capa = IW_POWER_PERIOD | IW_POWER_TIMEOUT | IW_POWER_UNICAST_R;
2829
2830 range->retry_capa = IW_RETRY_LIMIT | IW_RETRY_LIFETIME;
2831 range->retry_flags = IW_RETRY_LIMIT;
2832 range->r_time_flags = IW_RETRY_LIFETIME;
2833 range->min_retry = 0;
2834 range->max_retry = 65535; /* ??? */
2835 range->min_r_time = 0;
2836 range->max_r_time = 65535 * 1000; /* ??? */
2837
2838 /* Event capability (kernel) */
2839 IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
2840 /* Event capability (driver) */
2841 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWTHRSPY);
2842 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
2843 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
2844 IW_EVENT_CAPA_SET(range->event_capa, IWEVTXDROP);
2845
2846 return 0;
2847 }
2848
2849 static int orinoco_ioctl_setiwencode(struct net_device *dev,
2850 struct iw_request_info *info,
2851 struct iw_point *erq,
2852 char *keybuf)
2853 {
2854 struct orinoco_private *priv = netdev_priv(dev);
2855 int index = (erq->flags & IW_ENCODE_INDEX) - 1;
2856 int setindex = priv->tx_key;
2857 int enable = priv->wep_on;
2858 int restricted = priv->wep_restrict;
2859 u16 xlen = 0;
2860 int err = -EINPROGRESS; /* Call commit handler */
2861 unsigned long flags;
2862
2863 if (! priv->has_wep)
2864 return -EOPNOTSUPP;
2865
2866 if (erq->pointer) {
2867 /* We actually have a key to set - check its length */
2868 if (erq->length > LARGE_KEY_SIZE)
2869 return -E2BIG;
2870
2871 if ( (erq->length > SMALL_KEY_SIZE) && !priv->has_big_wep )
2872 return -E2BIG;
2873 }
2874
2875 if (orinoco_lock(priv, &flags) != 0)
2876 return -EBUSY;
2877
2878 if (erq->pointer) {
2879 if ((index < 0) || (index >= ORINOCO_MAX_KEYS))
2880 index = priv->tx_key;
2881
2882 /* Adjust key length to a supported value */
2883 if (erq->length > SMALL_KEY_SIZE) {
2884 xlen = LARGE_KEY_SIZE;
2885 } else if (erq->length > 0) {
2886 xlen = SMALL_KEY_SIZE;
2887 } else
2888 xlen = 0;
2889
2890 /* Switch on WEP if off */
2891 if ((!enable) && (xlen > 0)) {
2892 setindex = index;
2893 enable = 1;
2894 }
2895 } else {
2896 /* Important note : if the user do "iwconfig eth0 enc off",
2897 * we will arrive there with an index of -1. This is valid
2898 * but need to be taken care off... Jean II */
2899 if ((index < 0) || (index >= ORINOCO_MAX_KEYS)) {
2900 if((index != -1) || (erq->flags == 0)) {
2901 err = -EINVAL;
2902 goto out;
2903 }
2904 } else {
2905 /* Set the index : Check that the key is valid */
2906 if(priv->keys[index].len == 0) {
2907 err = -EINVAL;
2908 goto out;
2909 }
2910 setindex = index;
2911 }
2912 }
2913
2914 if (erq->flags & IW_ENCODE_DISABLED)
2915 enable = 0;
2916 if (erq->flags & IW_ENCODE_OPEN)
2917 restricted = 0;
2918 if (erq->flags & IW_ENCODE_RESTRICTED)
2919 restricted = 1;
2920
2921 if (erq->pointer) {
2922 priv->keys[index].len = cpu_to_le16(xlen);
2923 memset(priv->keys[index].data, 0,
2924 sizeof(priv->keys[index].data));
2925 memcpy(priv->keys[index].data, keybuf, erq->length);
2926 }
2927 priv->tx_key = setindex;
2928
2929 /* Try fast key change if connected and only keys are changed */
2930 if (priv->wep_on && enable && (priv->wep_restrict == restricted) &&
2931 netif_carrier_ok(dev)) {
2932 err = __orinoco_hw_setup_wepkeys(priv);
2933 /* No need to commit if successful */
2934 goto out;
2935 }
2936
2937 priv->wep_on = enable;
2938 priv->wep_restrict = restricted;
2939
2940 out:
2941 orinoco_unlock(priv, &flags);
2942
2943 return err;
2944 }
2945
2946 static int orinoco_ioctl_getiwencode(struct net_device *dev,
2947 struct iw_request_info *info,
2948 struct iw_point *erq,
2949 char *keybuf)
2950 {
2951 struct orinoco_private *priv = netdev_priv(dev);
2952 int index = (erq->flags & IW_ENCODE_INDEX) - 1;
2953 u16 xlen = 0;
2954 unsigned long flags;
2955
2956 if (! priv->has_wep)
2957 return -EOPNOTSUPP;
2958
2959 if (orinoco_lock(priv, &flags) != 0)
2960 return -EBUSY;
2961
2962 if ((index < 0) || (index >= ORINOCO_MAX_KEYS))
2963 index = priv->tx_key;
2964
2965 erq->flags = 0;
2966 if (! priv->wep_on)
2967 erq->flags |= IW_ENCODE_DISABLED;
2968 erq->flags |= index + 1;
2969
2970 if (priv->wep_restrict)
2971 erq->flags |= IW_ENCODE_RESTRICTED;
2972 else
2973 erq->flags |= IW_ENCODE_OPEN;
2974
2975 xlen = le16_to_cpu(priv->keys[index].len);
2976
2977 erq->length = xlen;
2978
2979 memcpy(keybuf, priv->keys[index].data, ORINOCO_MAX_KEY_SIZE);
2980
2981 orinoco_unlock(priv, &flags);
2982 return 0;
2983 }
2984
2985 static int orinoco_ioctl_setessid(struct net_device *dev,
2986 struct iw_request_info *info,
2987 struct iw_point *erq,
2988 char *essidbuf)
2989 {
2990 struct orinoco_private *priv = netdev_priv(dev);
2991 unsigned long flags;
2992
2993 /* Note : ESSID is ignored in Ad-Hoc demo mode, but we can set it
2994 * anyway... - Jean II */
2995
2996 /* Hum... Should not use Wireless Extension constant (may change),
2997 * should use our own... - Jean II */
2998 if (erq->length > IW_ESSID_MAX_SIZE)
2999 return -E2BIG;
3000
3001 if (orinoco_lock(priv, &flags) != 0)
3002 return -EBUSY;
3003
3004 /* NULL the string (for NULL termination & ESSID = ANY) - Jean II */
3005 memset(priv->desired_essid, 0, sizeof(priv->desired_essid));
3006
3007 /* If not ANY, get the new ESSID */
3008 if (erq->flags) {
3009 memcpy(priv->desired_essid, essidbuf, erq->length);
3010 }
3011
3012 orinoco_unlock(priv, &flags);
3013
3014 return -EINPROGRESS; /* Call commit handler */
3015 }
3016
3017 static int orinoco_ioctl_getessid(struct net_device *dev,
3018 struct iw_request_info *info,
3019 struct iw_point *erq,
3020 char *essidbuf)
3021 {
3022 struct orinoco_private *priv = netdev_priv(dev);
3023 int active;
3024 int err = 0;
3025 unsigned long flags;
3026
3027 if (netif_running(dev)) {
3028 err = orinoco_hw_get_essid(priv, &active, essidbuf);
3029 if (err)
3030 return err;
3031 } else {
3032 if (orinoco_lock(priv, &flags) != 0)
3033 return -EBUSY;
3034 memcpy(essidbuf, priv->desired_essid, IW_ESSID_MAX_SIZE + 1);
3035 orinoco_unlock(priv, &flags);
3036 }
3037
3038 erq->flags = 1;
3039 erq->length = strlen(essidbuf) + 1;
3040
3041 return 0;
3042 }
3043
3044 static int orinoco_ioctl_setnick(struct net_device *dev,
3045 struct iw_request_info *info,
3046 struct iw_point *nrq,
3047 char *nickbuf)
3048 {
3049 struct orinoco_private *priv = netdev_priv(dev);
3050 unsigned long flags;
3051
3052 if (nrq->length > IW_ESSID_MAX_SIZE)
3053 return -E2BIG;
3054
3055 if (orinoco_lock(priv, &flags) != 0)
3056 return -EBUSY;
3057
3058 memset(priv->nick, 0, sizeof(priv->nick));
3059 memcpy(priv->nick, nickbuf, nrq->length);
3060
3061 orinoco_unlock(priv, &flags);
3062
3063 return -EINPROGRESS; /* Call commit handler */
3064 }
3065
3066 static int orinoco_ioctl_getnick(struct net_device *dev,
3067 struct iw_request_info *info,
3068 struct iw_point *nrq,
3069 char *nickbuf)
3070 {
3071 struct orinoco_private *priv = netdev_priv(dev);
3072 unsigned long flags;
3073
3074 if (orinoco_lock(priv, &flags) != 0)
3075 return -EBUSY;
3076
3077 memcpy(nickbuf, priv->nick, IW_ESSID_MAX_SIZE+1);
3078 orinoco_unlock(priv, &flags);
3079
3080 nrq->length = strlen(nickbuf)+1;
3081
3082 return 0;
3083 }
3084
3085 static int orinoco_ioctl_setfreq(struct net_device *dev,
3086 struct iw_request_info *info,
3087 struct iw_freq *frq,
3088 char *extra)
3089 {
3090 struct orinoco_private *priv = netdev_priv(dev);
3091 int chan = -1;
3092 unsigned long flags;
3093 int err = -EINPROGRESS; /* Call commit handler */
3094
3095 /* In infrastructure mode the AP sets the channel */
3096 if (priv->iw_mode == IW_MODE_INFRA)
3097 return -EBUSY;
3098
3099 if ( (frq->e == 0) && (frq->m <= 1000) ) {
3100 /* Setting by channel number */
3101 chan = frq->m;
3102 } else {
3103 /* Setting by frequency - search the table */
3104 int mult = 1;
3105 int i;
3106
3107 for (i = 0; i < (6 - frq->e); i++)
3108 mult *= 10;
3109
3110 for (i = 0; i < NUM_CHANNELS; i++)
3111 if (frq->m == (channel_frequency[i] * mult))
3112 chan = i+1;
3113 }
3114
3115 if ( (chan < 1) || (chan > NUM_CHANNELS) ||
3116 ! (priv->channel_mask & (1 << (chan-1)) ) )
3117 return -EINVAL;
3118
3119 if (orinoco_lock(priv, &flags) != 0)
3120 return -EBUSY;
3121
3122 priv->channel = chan;
3123 if (priv->iw_mode == IW_MODE_MONITOR) {
3124 /* Fast channel change - no commit if successful */
3125 hermes_t *hw = &priv->hw;
3126 err = hermes_docmd_wait(hw, HERMES_CMD_TEST |
3127 HERMES_TEST_SET_CHANNEL,
3128 chan, NULL);
3129 }
3130 orinoco_unlock(priv, &flags);
3131
3132 return err;
3133 }
3134
3135 static int orinoco_ioctl_getfreq(struct net_device *dev,
3136 struct iw_request_info *info,
3137 struct iw_freq *frq,
3138 char *extra)
3139 {
3140 struct orinoco_private *priv = netdev_priv(dev);
3141 int tmp;
3142
3143 /* Locking done in there */
3144 tmp = orinoco_hw_get_freq(priv);
3145 if (tmp < 0) {
3146 return tmp;
3147 }
3148
3149 frq->m = tmp;
3150 frq->e = 1;
3151
3152 return 0;
3153 }
3154
3155 static int orinoco_ioctl_getsens(struct net_device *dev,
3156 struct iw_request_info *info,
3157 struct iw_param *srq,
3158 char *extra)
3159 {
3160 struct orinoco_private *priv = netdev_priv(dev);
3161 hermes_t *hw = &priv->hw;
3162 u16 val;
3163 int err;
3164 unsigned long flags;
3165
3166 if (!priv->has_sensitivity)
3167 return -EOPNOTSUPP;
3168
3169 if (orinoco_lock(priv, &flags) != 0)
3170 return -EBUSY;
3171 err = hermes_read_wordrec(hw, USER_BAP,
3172 HERMES_RID_CNFSYSTEMSCALE, &val);
3173 orinoco_unlock(priv, &flags);
3174
3175 if (err)
3176 return err;
3177
3178 srq->value = val;
3179 srq->fixed = 0; /* auto */
3180
3181 return 0;
3182 }
3183
3184 static int orinoco_ioctl_setsens(struct net_device *dev,
3185 struct iw_request_info *info,
3186 struct iw_param *srq,
3187 char *extra)
3188 {
3189 struct orinoco_private *priv = netdev_priv(dev);
3190 int val = srq->value;
3191 unsigned long flags;
3192
3193 if (!priv->has_sensitivity)
3194 return -EOPNOTSUPP;
3195
3196 if ((val < 1) || (val > 3))
3197 return -EINVAL;
3198
3199 if (orinoco_lock(priv, &flags) != 0)
3200 return -EBUSY;
3201 priv->ap_density = val;
3202 orinoco_unlock(priv, &flags);
3203
3204 return -EINPROGRESS; /* Call commit handler */
3205 }
3206
3207 static int orinoco_ioctl_setrts(struct net_device *dev,
3208 struct iw_request_info *info,
3209 struct iw_param *rrq,
3210 char *extra)
3211 {
3212 struct orinoco_private *priv = netdev_priv(dev);
3213 int val = rrq->value;
3214 unsigned long flags;
3215
3216 if (rrq->disabled)
3217 val = 2347;
3218
3219 if ( (val < 0) || (val > 2347) )
3220 return -EINVAL;
3221
3222 if (orinoco_lock(priv, &flags) != 0)
3223 return -EBUSY;
3224
3225 priv->rts_thresh = val;
3226 orinoco_unlock(priv, &flags);
3227
3228 return -EINPROGRESS; /* Call commit handler */
3229 }
3230
3231 static int orinoco_ioctl_getrts(struct net_device *dev,
3232 struct iw_request_info *info,
3233 struct iw_param *rrq,
3234 char *extra)
3235 {
3236 struct orinoco_private *priv = netdev_priv(dev);
3237
3238 rrq->value = priv->rts_thresh;
3239 rrq->disabled = (rrq->value == 2347);
3240 rrq->fixed = 1;
3241
3242 return 0;
3243 }
3244
3245 static int orinoco_ioctl_setfrag(struct net_device *dev,
3246 struct iw_request_info *info,
3247 struct iw_param *frq,
3248 char *extra)
3249 {
3250 struct orinoco_private *priv = netdev_priv(dev);
3251 int err = -EINPROGRESS; /* Call commit handler */
3252 unsigned long flags;
3253
3254 if (orinoco_lock(priv, &flags) != 0)
3255 return -EBUSY;
3256
3257 if (priv->has_mwo) {
3258 if (frq->disabled)
3259 priv->mwo_robust = 0;
3260 else {
3261 if (frq->fixed)
3262 printk(KERN_WARNING "%s: Fixed fragmentation is "
3263 "not supported on this firmware. "
3264 "Using MWO robust instead.\n", dev->name);
3265 priv->mwo_robust = 1;
3266 }
3267 } else {
3268 if (frq->disabled)
3269 priv->frag_thresh = 2346;
3270 else {
3271 if ( (frq->value < 256) || (frq->value > 2346) )
3272 err = -EINVAL;
3273 else
3274 priv->frag_thresh = frq->value & ~0x1; /* must be even */
3275 }
3276 }
3277
3278 orinoco_unlock(priv, &flags);
3279
3280 return err;
3281 }
3282
3283 static int orinoco_ioctl_getfrag(struct net_device *dev,
3284 struct iw_request_info *info,
3285 struct iw_param *frq,
3286 char *extra)
3287 {
3288 struct orinoco_private *priv = netdev_priv(dev);
3289 hermes_t *hw = &priv->hw;
3290 int err;
3291 u16 val;
3292 unsigned long flags;
3293
3294 if (orinoco_lock(priv, &flags) != 0)
3295 return -EBUSY;
3296
3297 if (priv->has_mwo) {
3298 err = hermes_read_wordrec(hw, USER_BAP,
3299 HERMES_RID_CNFMWOROBUST_AGERE,
3300 &val);
3301 if (err)
3302 val = 0;
3303
3304 frq->value = val ? 2347 : 0;
3305 frq->disabled = ! val;
3306 frq->fixed = 0;
3307 } else {
3308 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFFRAGMENTATIONTHRESHOLD,
3309 &val);
3310 if (err)
3311 val = 0;
3312
3313 frq->value = val;
3314 frq->disabled = (val >= 2346);
3315 frq->fixed = 1;
3316 }
3317
3318 orinoco_unlock(priv, &flags);
3319
3320 return err;
3321 }
3322
3323 static int orinoco_ioctl_setrate(struct net_device *dev,
3324 struct iw_request_info *info,
3325 struct iw_param *rrq,
3326 char *extra)
3327 {
3328 struct orinoco_private *priv = netdev_priv(dev);
3329 int ratemode = -1;
3330 int bitrate; /* 100s of kilobits */
3331 int i;
3332 unsigned long flags;
3333
3334 /* As the user space doesn't know our highest rate, it uses -1
3335 * to ask us to set the highest rate. Test it using "iwconfig
3336 * ethX rate auto" - Jean II */
3337 if (rrq->value == -1)
3338 bitrate = 110;
3339 else {
3340 if (rrq->value % 100000)
3341 return -EINVAL;
3342 bitrate = rrq->value / 100000;
3343 }
3344
3345 if ( (bitrate != 10) && (bitrate != 20) &&
3346 (bitrate != 55) && (bitrate != 110) )
3347 return -EINVAL;
3348
3349 for (i = 0; i < BITRATE_TABLE_SIZE; i++)
3350 if ( (bitrate_table[i].bitrate == bitrate) &&
3351 (bitrate_table[i].automatic == ! rrq->fixed) ) {
3352 ratemode = i;
3353 break;
3354 }
3355
3356 if (ratemode == -1)
3357 return -EINVAL;
3358
3359 if (orinoco_lock(priv, &flags) != 0)
3360 return -EBUSY;
3361 priv->bitratemode = ratemode;
3362 orinoco_unlock(priv, &flags);
3363
3364 return -EINPROGRESS;
3365 }
3366
3367 static int orinoco_ioctl_getrate(struct net_device *dev,
3368 struct iw_request_info *info,
3369 struct iw_param *rrq,
3370 char *extra)
3371 {
3372 struct orinoco_private *priv = netdev_priv(dev);
3373 hermes_t *hw = &priv->hw;
3374 int err = 0;
3375 int ratemode;
3376 int i;
3377 u16 val;
3378 unsigned long flags;
3379
3380 if (orinoco_lock(priv, &flags) != 0)
3381 return -EBUSY;
3382
3383 ratemode = priv->bitratemode;
3384
3385 BUG_ON((ratemode < 0) || (ratemode >= BITRATE_TABLE_SIZE));
3386
3387 rrq->value = bitrate_table[ratemode].bitrate * 100000;
3388 rrq->fixed = ! bitrate_table[ratemode].automatic;
3389 rrq->disabled = 0;
3390
3391 /* If the interface is running we try to find more about the
3392 current mode */
3393 if (netif_running(dev)) {
3394 err = hermes_read_wordrec(hw, USER_BAP,
3395 HERMES_RID_CURRENTTXRATE, &val);
3396 if (err)
3397 goto out;
3398
3399 switch (priv->firmware_type) {
3400 case FIRMWARE_TYPE_AGERE: /* Lucent style rate */
3401 /* Note : in Lucent firmware, the return value of
3402 * HERMES_RID_CURRENTTXRATE is the bitrate in Mb/s,
3403 * and therefore is totally different from the
3404 * encoding of HERMES_RID_CNFTXRATECONTROL.
3405 * Don't forget that 6Mb/s is really 5.5Mb/s */
3406 if (val == 6)
3407 rrq->value = 5500000;
3408 else
3409 rrq->value = val * 1000000;
3410 break;
3411 case FIRMWARE_TYPE_INTERSIL: /* Intersil style rate */
3412 case FIRMWARE_TYPE_SYMBOL: /* Symbol style rate */
3413 for (i = 0; i < BITRATE_TABLE_SIZE; i++)
3414 if (bitrate_table[i].intersil_txratectrl == val) {
3415 ratemode = i;
3416 break;
3417 }
3418 if (i >= BITRATE_TABLE_SIZE)
3419 printk(KERN_INFO "%s: Unable to determine current bitrate (0x%04hx)\n",
3420 dev->name, val);
3421
3422 rrq->value = bitrate_table[ratemode].bitrate * 100000;
3423 break;
3424 default:
3425 BUG();
3426 }
3427 }
3428
3429 out:
3430 orinoco_unlock(priv, &flags);
3431
3432 return err;
3433 }
3434
3435 static int orinoco_ioctl_setpower(struct net_device *dev,
3436 struct iw_request_info *info,
3437 struct iw_param *prq,
3438 char *extra)
3439 {
3440 struct orinoco_private *priv = netdev_priv(dev);
3441 int err = -EINPROGRESS; /* Call commit handler */
3442 unsigned long flags;
3443
3444 if (orinoco_lock(priv, &flags) != 0)
3445 return -EBUSY;
3446
3447 if (prq->disabled) {
3448 priv->pm_on = 0;
3449 } else {
3450 switch (prq->flags & IW_POWER_MODE) {
3451 case IW_POWER_UNICAST_R:
3452 priv->pm_mcast = 0;
3453 priv->pm_on = 1;
3454 break;
3455 case IW_POWER_ALL_R:
3456 priv->pm_mcast = 1;
3457 priv->pm_on = 1;
3458 break;
3459 case IW_POWER_ON:
3460 /* No flags : but we may have a value - Jean II */
3461 break;
3462 default:
3463 err = -EINVAL;
3464 goto out;
3465 }
3466
3467 if (prq->flags & IW_POWER_TIMEOUT) {
3468 priv->pm_on = 1;
3469 priv->pm_timeout = prq->value / 1000;
3470 }
3471 if (prq->flags & IW_POWER_PERIOD) {
3472 priv->pm_on = 1;
3473 priv->pm_period = prq->value / 1000;
3474 }
3475 /* It's valid to not have a value if we are just toggling
3476 * the flags... Jean II */
3477 if(!priv->pm_on) {
3478 err = -EINVAL;
3479 goto out;
3480 }
3481 }
3482
3483 out:
3484 orinoco_unlock(priv, &flags);
3485
3486 return err;
3487 }
3488
3489 static int orinoco_ioctl_getpower(struct net_device *dev,
3490 struct iw_request_info *info,
3491 struct iw_param *prq,
3492 char *extra)
3493 {
3494 struct orinoco_private *priv = netdev_priv(dev);
3495 hermes_t *hw = &priv->hw;
3496 int err = 0;
3497 u16 enable, period, timeout, mcast;
3498 unsigned long flags;
3499
3500 if (orinoco_lock(priv, &flags) != 0)
3501 return -EBUSY;
3502
3503 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFPMENABLED, &enable);
3504 if (err)
3505 goto out;
3506
3507 err = hermes_read_wordrec(hw, USER_BAP,
3508 HERMES_RID_CNFMAXSLEEPDURATION, &period);
3509 if (err)
3510 goto out;
3511
3512 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFPMHOLDOVERDURATION, &timeout);
3513 if (err)
3514 goto out;
3515
3516 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFMULTICASTRECEIVE, &mcast);
3517 if (err)
3518 goto out;
3519
3520 prq->disabled = !enable;
3521 /* Note : by default, display the period */
3522 if ((prq->flags & IW_POWER_TYPE) == IW_POWER_TIMEOUT) {
3523 prq->flags = IW_POWER_TIMEOUT;
3524 prq->value = timeout * 1000;
3525 } else {
3526 prq->flags = IW_POWER_PERIOD;
3527 prq->value = period * 1000;
3528 }
3529 if (mcast)
3530 prq->flags |= IW_POWER_ALL_R;
3531 else
3532 prq->flags |= IW_POWER_UNICAST_R;
3533
3534 out:
3535 orinoco_unlock(priv, &flags);
3536
3537 return err;
3538 }
3539
3540 static int orinoco_ioctl_getretry(struct net_device *dev,
3541 struct iw_request_info *info,
3542 struct iw_param *rrq,
3543 char *extra)
3544 {
3545 struct orinoco_private *priv = netdev_priv(dev);
3546 hermes_t *hw = &priv->hw;
3547 int err = 0;
3548 u16 short_limit, long_limit, lifetime;
3549 unsigned long flags;
3550
3551 if (orinoco_lock(priv, &flags) != 0)
3552 return -EBUSY;
3553
3554 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_SHORTRETRYLIMIT,
3555 &short_limit);
3556 if (err)
3557 goto out;
3558
3559 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_LONGRETRYLIMIT,
3560 &long_limit);
3561 if (err)
3562 goto out;
3563
3564 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_MAXTRANSMITLIFETIME,
3565 &lifetime);
3566 if (err)
3567 goto out;
3568
3569 rrq->disabled = 0; /* Can't be disabled */
3570
3571 /* Note : by default, display the retry number */
3572 if ((rrq->flags & IW_RETRY_TYPE) == IW_RETRY_LIFETIME) {
3573 rrq->flags = IW_RETRY_LIFETIME;
3574 rrq->value = lifetime * 1000; /* ??? */
3575 } else {
3576 /* By default, display the min number */
3577 if ((rrq->flags & IW_RETRY_MAX)) {
3578 rrq->flags = IW_RETRY_LIMIT | IW_RETRY_MAX;
3579 rrq->value = long_limit;
3580 } else {
3581 rrq->flags = IW_RETRY_LIMIT;
3582 rrq->value = short_limit;
3583 if(short_limit != long_limit)
3584 rrq->flags |= IW_RETRY_MIN;
3585 }
3586 }
3587
3588 out:
3589 orinoco_unlock(priv, &flags);
3590
3591 return err;
3592 }
3593
3594 static int orinoco_ioctl_reset(struct net_device *dev,
3595 struct iw_request_info *info,
3596 void *wrqu,
3597 char *extra)
3598 {
3599 struct orinoco_private *priv = netdev_priv(dev);
3600
3601 if (! capable(CAP_NET_ADMIN))
3602 return -EPERM;
3603
3604 if (info->cmd == (SIOCIWFIRSTPRIV + 0x1)) {
3605 printk(KERN_DEBUG "%s: Forcing reset!\n", dev->name);
3606
3607 /* Firmware reset */
3608 orinoco_reset(dev);
3609 } else {
3610 printk(KERN_DEBUG "%s: Force scheduling reset!\n", dev->name);
3611
3612 schedule_work(&priv->reset_work);
3613 }
3614
3615 return 0;
3616 }
3617
3618 static int orinoco_ioctl_setibssport(struct net_device *dev,
3619 struct iw_request_info *info,
3620 void *wrqu,
3621 char *extra)
3622
3623 {
3624 struct orinoco_private *priv = netdev_priv(dev);
3625 int val = *( (int *) extra );
3626 unsigned long flags;
3627
3628 if (orinoco_lock(priv, &flags) != 0)
3629 return -EBUSY;
3630
3631 priv->ibss_port = val ;
3632
3633 /* Actually update the mode we are using */
3634 set_port_type(priv);
3635
3636 orinoco_unlock(priv, &flags);
3637 return -EINPROGRESS; /* Call commit handler */
3638 }
3639
3640 static int orinoco_ioctl_getibssport(struct net_device *dev,
3641 struct iw_request_info *info,
3642 void *wrqu,
3643 char *extra)
3644 {
3645 struct orinoco_private *priv = netdev_priv(dev);
3646 int *val = (int *) extra;
3647
3648 *val = priv->ibss_port;
3649 return 0;
3650 }
3651
3652 static int orinoco_ioctl_setport3(struct net_device *dev,
3653 struct iw_request_info *info,
3654 void *wrqu,
3655 char *extra)
3656 {
3657 struct orinoco_private *priv = netdev_priv(dev);
3658 int val = *( (int *) extra );
3659 int err = 0;
3660 unsigned long flags;
3661
3662 if (orinoco_lock(priv, &flags) != 0)
3663 return -EBUSY;
3664
3665 switch (val) {
3666 case 0: /* Try to do IEEE ad-hoc mode */
3667 if (! priv->has_ibss) {
3668 err = -EINVAL;
3669 break;
3670 }
3671 priv->prefer_port3 = 0;
3672
3673 break;
3674
3675 case 1: /* Try to do Lucent proprietary ad-hoc mode */
3676 if (! priv->has_port3) {
3677 err = -EINVAL;
3678 break;
3679 }
3680 priv->prefer_port3 = 1;
3681 break;
3682
3683 default:
3684 err = -EINVAL;
3685 }
3686
3687 if (! err) {
3688 /* Actually update the mode we are using */
3689 set_port_type(priv);
3690 err = -EINPROGRESS;
3691 }
3692
3693 orinoco_unlock(priv, &flags);
3694
3695 return err;
3696 }
3697
3698 static int orinoco_ioctl_getport3(struct net_device *dev,
3699 struct iw_request_info *info,
3700 void *wrqu,
3701 char *extra)
3702 {
3703 struct orinoco_private *priv = netdev_priv(dev);
3704 int *val = (int *) extra;
3705
3706 *val = priv->prefer_port3;
3707 return 0;
3708 }
3709
3710 static int orinoco_ioctl_setpreamble(struct net_device *dev,
3711 struct iw_request_info *info,
3712 void *wrqu,
3713 char *extra)
3714 {
3715 struct orinoco_private *priv = netdev_priv(dev);
3716 unsigned long flags;
3717 int val;
3718
3719 if (! priv->has_preamble)
3720 return -EOPNOTSUPP;
3721
3722 /* 802.11b has recently defined some short preamble.
3723 * Basically, the Phy header has been reduced in size.
3724 * This increase performance, especially at high rates
3725 * (the preamble is transmitted at 1Mb/s), unfortunately
3726 * this give compatibility troubles... - Jean II */
3727 val = *( (int *) extra );
3728
3729 if (orinoco_lock(priv, &flags) != 0)
3730 return -EBUSY;
3731
3732 if (val)
3733 priv->preamble = 1;
3734 else
3735 priv->preamble = 0;
3736
3737 orinoco_unlock(priv, &flags);
3738
3739 return -EINPROGRESS; /* Call commit handler */
3740 }
3741
3742 static int orinoco_ioctl_getpreamble(struct net_device *dev,
3743 struct iw_request_info *info,
3744 void *wrqu,
3745 char *extra)
3746 {
3747 struct orinoco_private *priv = netdev_priv(dev);
3748 int *val = (int *) extra;
3749
3750 if (! priv->has_preamble)
3751 return -EOPNOTSUPP;
3752
3753 *val = priv->preamble;
3754 return 0;
3755 }
3756
3757 /* ioctl interface to hermes_read_ltv()
3758 * To use with iwpriv, pass the RID as the token argument, e.g.
3759 * iwpriv get_rid [0xfc00]
3760 * At least Wireless Tools 25 is required to use iwpriv.
3761 * For Wireless Tools 25 and 26 append "dummy" are the end. */
3762 static int orinoco_ioctl_getrid(struct net_device *dev,
3763 struct iw_request_info *info,
3764 struct iw_point *data,
3765 char *extra)
3766 {
3767 struct orinoco_private *priv = netdev_priv(dev);
3768 hermes_t *hw = &priv->hw;
3769 int rid = data->flags;
3770 u16 length;
3771 int err;
3772 unsigned long flags;
3773
3774 /* It's a "get" function, but we don't want users to access the
3775 * WEP key and other raw firmware data */
3776 if (! capable(CAP_NET_ADMIN))
3777 return -EPERM;
3778
3779 if (rid < 0xfc00 || rid > 0xffff)
3780 return -EINVAL;
3781
3782 if (orinoco_lock(priv, &flags) != 0)
3783 return -EBUSY;
3784
3785 err = hermes_read_ltv(hw, USER_BAP, rid, MAX_RID_LEN, &length,
3786 extra);
3787 if (err)
3788 goto out;
3789
3790 data->length = min_t(u16, HERMES_RECLEN_TO_BYTES(length),
3791 MAX_RID_LEN);
3792
3793 out:
3794 orinoco_unlock(priv, &flags);
3795 return err;
3796 }
3797
3798 /* Trigger a scan (look for other cells in the vicinity */
3799 static int orinoco_ioctl_setscan(struct net_device *dev,
3800 struct iw_request_info *info,
3801 struct iw_param *srq,
3802 char *extra)
3803 {
3804 struct orinoco_private *priv = netdev_priv(dev);
3805 hermes_t *hw = &priv->hw;
3806 int err = 0;
3807 unsigned long flags;
3808
3809 /* Note : you may have realised that, as this is a SET operation,
3810 * this is privileged and therefore a normal user can't
3811 * perform scanning.
3812 * This is not an error, while the device perform scanning,
3813 * traffic doesn't flow, so it's a perfect DoS...
3814 * Jean II */
3815
3816 if (orinoco_lock(priv, &flags) != 0)
3817 return -EBUSY;
3818
3819 /* Scanning with port 0 disabled would fail */
3820 if (!netif_running(dev)) {
3821 err = -ENETDOWN;
3822 goto out;
3823 }
3824
3825 /* In monitor mode, the scan results are always empty.
3826 * Probe responses are passed to the driver as received
3827 * frames and could be processed in software. */
3828 if (priv->iw_mode == IW_MODE_MONITOR) {
3829 err = -EOPNOTSUPP;
3830 goto out;
3831 }
3832
3833 /* Note : because we don't lock out the irq handler, the way
3834 * we access scan variables in priv is critical.
3835 * o scan_inprogress : not touched by irq handler
3836 * o scan_mode : not touched by irq handler
3837 * o scan_result : irq is strict producer, non-irq is strict
3838 * consumer.
3839 * o scan_len : synchronised with scan_result
3840 * Before modifying anything on those variables, please think hard !
3841 * Jean II */
3842
3843 /* If there is still some left-over scan results, get rid of it */
3844 if (priv->scan_result != NULL) {
3845 /* What's likely is that a client did crash or was killed
3846 * between triggering the scan request and reading the
3847 * results, so we need to reset everything.
3848 * Some clients that are too slow may suffer from that...
3849 * Jean II */
3850 kfree(priv->scan_result);
3851 priv->scan_result = NULL;
3852 }
3853
3854 /* Save flags */
3855 priv->scan_mode = srq->flags;
3856
3857 /* Always trigger scanning, even if it's in progress.
3858 * This way, if the info frame get lost, we will recover somewhat
3859 * gracefully - Jean II */
3860
3861 if (priv->has_hostscan) {
3862 switch (priv->firmware_type) {
3863 case FIRMWARE_TYPE_SYMBOL:
3864 err = hermes_write_wordrec(hw, USER_BAP,
3865 HERMES_RID_CNFHOSTSCAN_SYMBOL,
3866 HERMES_HOSTSCAN_SYMBOL_ONCE |
3867 HERMES_HOSTSCAN_SYMBOL_BCAST);
3868 break;
3869 case FIRMWARE_TYPE_INTERSIL: {
3870 __le16 req[3];
3871
3872 req[0] = cpu_to_le16(0x3fff); /* All channels */
3873 req[1] = cpu_to_le16(0x0001); /* rate 1 Mbps */
3874 req[2] = 0; /* Any ESSID */
3875 err = HERMES_WRITE_RECORD(hw, USER_BAP,
3876 HERMES_RID_CNFHOSTSCAN, &req);
3877 }
3878 break;
3879 case FIRMWARE_TYPE_AGERE:
3880 err = hermes_write_wordrec(hw, USER_BAP,
3881 HERMES_RID_CNFSCANSSID_AGERE,
3882 0); /* Any ESSID */
3883 if (err)
3884 break;
3885
3886 err = hermes_inquire(hw, HERMES_INQ_SCAN);
3887 break;
3888 }
3889 } else
3890 err = hermes_inquire(hw, HERMES_INQ_SCAN);
3891
3892 /* One more client */
3893 if (! err)
3894 priv->scan_inprogress = 1;
3895
3896 out:
3897 orinoco_unlock(priv, &flags);
3898 return err;
3899 }
3900
3901 /* Translate scan data returned from the card to a card independant
3902 * format that the Wireless Tools will understand - Jean II
3903 * Return message length or -errno for fatal errors */
3904 static inline int orinoco_translate_scan(struct net_device *dev,
3905 char *buffer,
3906 char *scan,
3907 int scan_len)
3908 {
3909 struct orinoco_private *priv = netdev_priv(dev);
3910 int offset; /* In the scan data */
3911 union hermes_scan_info *atom;
3912 int atom_len;
3913 u16 capabilities;
3914 u16 channel;
3915 struct iw_event iwe; /* Temporary buffer */
3916 char * current_ev = buffer;
3917 char * end_buf = buffer + IW_SCAN_MAX_DATA;
3918
3919 switch (priv->firmware_type) {
3920 case FIRMWARE_TYPE_AGERE:
3921 atom_len = sizeof(struct agere_scan_apinfo);
3922 offset = 0;
3923 break;
3924 case FIRMWARE_TYPE_SYMBOL:
3925 /* Lack of documentation necessitates this hack.
3926 * Different firmwares have 68 or 76 byte long atoms.
3927 * We try modulo first. If the length divides by both,
3928 * we check what would be the channel in the second
3929 * frame for a 68-byte atom. 76-byte atoms have 0 there.
3930 * Valid channel cannot be 0. */
3931 if (scan_len % 76)
3932 atom_len = 68;
3933 else if (scan_len % 68)
3934 atom_len = 76;
3935 else if (scan_len >= 1292 && scan[68] == 0)
3936 atom_len = 76;
3937 else
3938 atom_len = 68;
3939 offset = 0;
3940 break;
3941 case FIRMWARE_TYPE_INTERSIL:
3942 offset = 4;
3943 if (priv->has_hostscan) {
3944 atom_len = le16_to_cpup((__le16 *)scan);
3945 /* Sanity check for atom_len */
3946 if (atom_len < sizeof(struct prism2_scan_apinfo)) {
3947 printk(KERN_ERR "%s: Invalid atom_len in scan data: %d\n",
3948 dev->name, atom_len);
3949 return -EIO;
3950 }
3951 } else
3952 atom_len = offsetof(struct prism2_scan_apinfo, atim);
3953 break;
3954 default:
3955 return -EOPNOTSUPP;
3956 }
3957
3958 /* Check that we got an whole number of atoms */
3959 if ((scan_len - offset) % atom_len) {
3960 printk(KERN_ERR "%s: Unexpected scan data length %d, "
3961 "atom_len %d, offset %d\n", dev->name, scan_len,
3962 atom_len, offset);
3963 return -EIO;
3964 }
3965
3966 /* Read the entries one by one */
3967 for (; offset + atom_len <= scan_len; offset += atom_len) {
3968 /* Get next atom */
3969 atom = (union hermes_scan_info *) (scan + offset);
3970
3971 /* First entry *MUST* be the AP MAC address */
3972 iwe.cmd = SIOCGIWAP;
3973 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
3974 memcpy(iwe.u.ap_addr.sa_data, atom->a.bssid, ETH_ALEN);
3975 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_ADDR_LEN);
3976
3977 /* Other entries will be displayed in the order we give them */
3978
3979 /* Add the ESSID */
3980 iwe.u.data.length = le16_to_cpu(atom->a.essid_len);
3981 if (iwe.u.data.length > 32)
3982 iwe.u.data.length = 32;
3983 iwe.cmd = SIOCGIWESSID;
3984 iwe.u.data.flags = 1;
3985 current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe, atom->a.essid);
3986
3987 /* Add mode */
3988 iwe.cmd = SIOCGIWMODE;
3989 capabilities = le16_to_cpu(atom->a.capabilities);
3990 if (capabilities & 0x3) {
3991 if (capabilities & 0x1)
3992 iwe.u.mode = IW_MODE_MASTER;
3993 else
3994 iwe.u.mode = IW_MODE_ADHOC;
3995 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_UINT_LEN);
3996 }
3997
3998 channel = atom->s.channel;
3999 if ( (channel >= 1) && (channel <= NUM_CHANNELS) ) {
4000 /* Add frequency */
4001 iwe.cmd = SIOCGIWFREQ;
4002 iwe.u.freq.m = channel_frequency[channel-1] * 100000;
4003 iwe.u.freq.e = 1;
4004 current_ev = iwe_stream_add_event(current_ev, end_buf,
4005 &iwe, IW_EV_FREQ_LEN);
4006 }
4007
4008 /* Add quality statistics */
4009 iwe.cmd = IWEVQUAL;
4010 iwe.u.qual.updated = 0x10; /* no link quality */
4011 iwe.u.qual.level = (__u8) le16_to_cpu(atom->a.level) - 0x95;
4012 iwe.u.qual.noise = (__u8) le16_to_cpu(atom->a.noise) - 0x95;
4013 /* Wireless tools prior to 27.pre22 will show link quality
4014 * anyway, so we provide a reasonable value. */
4015 if (iwe.u.qual.level > iwe.u.qual.noise)
4016 iwe.u.qual.qual = iwe.u.qual.level - iwe.u.qual.noise;
4017 else
4018 iwe.u.qual.qual = 0;
4019 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_QUAL_LEN);
4020
4021 /* Add encryption capability */
4022 iwe.cmd = SIOCGIWENCODE;
4023 if (capabilities & 0x10)
4024 iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
4025 else
4026 iwe.u.data.flags = IW_ENCODE_DISABLED;
4027 iwe.u.data.length = 0;
4028 current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe, atom->a.essid);
4029
4030 /* Bit rate is not available in Lucent/Agere firmwares */
4031 if (priv->firmware_type != FIRMWARE_TYPE_AGERE) {
4032 char * current_val = current_ev + IW_EV_LCP_LEN;
4033 int i;
4034 int step;
4035
4036 if (priv->firmware_type == FIRMWARE_TYPE_SYMBOL)
4037 step = 2;
4038 else
4039 step = 1;
4040
4041 iwe.cmd = SIOCGIWRATE;
4042 /* Those two flags are ignored... */
4043 iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
4044 /* Max 10 values */
4045 for (i = 0; i < 10; i += step) {
4046 /* NULL terminated */
4047 if (atom->p.rates[i] == 0x0)
4048 break;
4049 /* Bit rate given in 500 kb/s units (+ 0x80) */
4050 iwe.u.bitrate.value = ((atom->p.rates[i] & 0x7f) * 500000);
4051 current_val = iwe_stream_add_value(current_ev, current_val,
4052 end_buf, &iwe,
4053 IW_EV_PARAM_LEN);
4054 }
4055 /* Check if we added any event */
4056 if ((current_val - current_ev) > IW_EV_LCP_LEN)
4057 current_ev = current_val;
4058 }
4059
4060 /* The other data in the scan result are not really
4061 * interesting, so for now drop it - Jean II */
4062 }
4063 return current_ev - buffer;
4064 }
4065
4066 /* Return results of a scan */
4067 static int orinoco_ioctl_getscan(struct net_device *dev,
4068 struct iw_request_info *info,
4069 struct iw_point *srq,
4070 char *extra)
4071 {
4072 struct orinoco_private *priv = netdev_priv(dev);
4073 int err = 0;
4074 unsigned long flags;
4075
4076 if (orinoco_lock(priv, &flags) != 0)
4077 return -EBUSY;
4078
4079 /* If no results yet, ask to try again later */
4080 if (priv->scan_result == NULL) {
4081 if (priv->scan_inprogress)
4082 /* Important note : we don't want to block the caller
4083 * until results are ready for various reasons.
4084 * First, managing wait queues is complex and racy.
4085 * Second, we grab some rtnetlink lock before comming
4086 * here (in dev_ioctl()).
4087 * Third, we generate an Wireless Event, so the
4088 * caller can wait itself on that - Jean II */
4089 err = -EAGAIN;
4090 else
4091 /* Client error, no scan results...
4092 * The caller need to restart the scan. */
4093 err = -ENODATA;
4094 } else {
4095 /* We have some results to push back to user space */
4096
4097 /* Translate to WE format */
4098 int ret = orinoco_translate_scan(dev, extra,
4099 priv->scan_result,
4100 priv->scan_len);
4101
4102 if (ret < 0) {
4103 err = ret;
4104 kfree(priv->scan_result);
4105 priv->scan_result = NULL;
4106 } else {
4107 srq->length = ret;
4108
4109 /* Return flags */
4110 srq->flags = (__u16) priv->scan_mode;
4111
4112 /* In any case, Scan results will be cleaned up in the
4113 * reset function and when exiting the driver.
4114 * The person triggering the scanning may never come to
4115 * pick the results, so we need to do it in those places.
4116 * Jean II */
4117
4118 #ifdef SCAN_SINGLE_READ
4119 /* If you enable this option, only one client (the first
4120 * one) will be able to read the result (and only one
4121 * time). If there is multiple concurent clients that
4122 * want to read scan results, this behavior is not
4123 * advisable - Jean II */
4124 kfree(priv->scan_result);
4125 priv->scan_result = NULL;
4126 #endif /* SCAN_SINGLE_READ */
4127 /* Here, if too much time has elapsed since last scan,
4128 * we may want to clean up scan results... - Jean II */
4129 }
4130
4131 /* Scan is no longer in progress */
4132 priv->scan_inprogress = 0;
4133 }
4134
4135 orinoco_unlock(priv, &flags);
4136 return err;
4137 }
4138
4139 /* Commit handler, called after set operations */
4140 static int orinoco_ioctl_commit(struct net_device *dev,
4141 struct iw_request_info *info,
4142 void *wrqu,
4143 char *extra)
4144 {
4145 struct orinoco_private *priv = netdev_priv(dev);
4146 struct hermes *hw = &priv->hw;
4147 unsigned long flags;
4148 int err = 0;
4149
4150 if (!priv->open)
4151 return 0;
4152
4153 if (priv->broken_disableport) {
4154 orinoco_reset(dev);
4155 return 0;
4156 }
4157
4158 if (orinoco_lock(priv, &flags) != 0)
4159 return err;
4160
4161 err = hermes_disable_port(hw, 0);
4162 if (err) {
4163 printk(KERN_WARNING "%s: Unable to disable port "
4164 "while reconfiguring card\n", dev->name);
4165 priv->broken_disableport = 1;
4166 goto out;
4167 }
4168
4169 err = __orinoco_program_rids(dev);
4170 if (err) {
4171 printk(KERN_WARNING "%s: Unable to reconfigure card\n",
4172 dev->name);
4173 goto out;
4174 }
4175
4176 err = hermes_enable_port(hw, 0);
4177 if (err) {
4178 printk(KERN_WARNING "%s: Unable to enable port while reconfiguring card\n",
4179 dev->name);
4180 goto out;
4181 }
4182
4183 out:
4184 if (err) {
4185 printk(KERN_WARNING "%s: Resetting instead...\n", dev->name);
4186 schedule_work(&priv->reset_work);
4187 err = 0;
4188 }
4189
4190 orinoco_unlock(priv, &flags);
4191 return err;
4192 }
4193
4194 static const struct iw_priv_args orinoco_privtab[] = {
4195 { SIOCIWFIRSTPRIV + 0x0, 0, 0, "force_reset" },
4196 { SIOCIWFIRSTPRIV + 0x1, 0, 0, "card_reset" },
4197 { SIOCIWFIRSTPRIV + 0x2, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
4198 0, "set_port3" },
4199 { SIOCIWFIRSTPRIV + 0x3, 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
4200 "get_port3" },
4201 { SIOCIWFIRSTPRIV + 0x4, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
4202 0, "set_preamble" },
4203 { SIOCIWFIRSTPRIV + 0x5, 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
4204 "get_preamble" },
4205 { SIOCIWFIRSTPRIV + 0x6, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
4206 0, "set_ibssport" },
4207 { SIOCIWFIRSTPRIV + 0x7, 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
4208 "get_ibssport" },
4209 { SIOCIWFIRSTPRIV + 0x9, 0, IW_PRIV_TYPE_BYTE | MAX_RID_LEN,
4210 "get_rid" },
4211 };
4212
4213
4214 /*
4215 * Structures to export the Wireless Handlers
4216 */
4217
4218 static const iw_handler orinoco_handler[] = {
4219 [SIOCSIWCOMMIT-SIOCIWFIRST] = (iw_handler) orinoco_ioctl_commit,
4220 [SIOCGIWNAME -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getname,
4221 [SIOCSIWFREQ -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setfreq,
4222 [SIOCGIWFREQ -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getfreq,
4223 [SIOCSIWMODE -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setmode,
4224 [SIOCGIWMODE -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getmode,
4225 [SIOCSIWSENS -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setsens,
4226 [SIOCGIWSENS -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getsens,
4227 [SIOCGIWRANGE -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getiwrange,
4228 [SIOCSIWSPY -SIOCIWFIRST] = (iw_handler) iw_handler_set_spy,
4229 [SIOCGIWSPY -SIOCIWFIRST] = (iw_handler) iw_handler_get_spy,
4230 [SIOCSIWTHRSPY-SIOCIWFIRST] = (iw_handler) iw_handler_set_thrspy,
4231 [SIOCGIWTHRSPY-SIOCIWFIRST] = (iw_handler) iw_handler_get_thrspy,
4232 [SIOCSIWAP -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setwap,
4233 [SIOCGIWAP -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getwap,
4234 [SIOCSIWSCAN -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setscan,
4235 [SIOCGIWSCAN -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getscan,
4236 [SIOCSIWESSID -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setessid,
4237 [SIOCGIWESSID -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getessid,
4238 [SIOCSIWNICKN -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setnick,
4239 [SIOCGIWNICKN -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getnick,
4240 [SIOCSIWRATE -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setrate,
4241 [SIOCGIWRATE -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getrate,
4242 [SIOCSIWRTS -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setrts,
4243 [SIOCGIWRTS -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getrts,
4244 [SIOCSIWFRAG -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setfrag,
4245 [SIOCGIWFRAG -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getfrag,
4246 [SIOCGIWRETRY -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getretry,
4247 [SIOCSIWENCODE-SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setiwencode,
4248 [SIOCGIWENCODE-SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getiwencode,
4249 [SIOCSIWPOWER -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setpower,
4250 [SIOCGIWPOWER -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getpower,
4251 };
4252
4253
4254 /*
4255 Added typecasting since we no longer use iwreq_data -- Moustafa
4256 */
4257 static const iw_handler orinoco_private_handler[] = {
4258 [0] = (iw_handler) orinoco_ioctl_reset,
4259 [1] = (iw_handler) orinoco_ioctl_reset,
4260 [2] = (iw_handler) orinoco_ioctl_setport3,
4261 [3] = (iw_handler) orinoco_ioctl_getport3,
4262 [4] = (iw_handler) orinoco_ioctl_setpreamble,
4263 [5] = (iw_handler) orinoco_ioctl_getpreamble,
4264 [6] = (iw_handler) orinoco_ioctl_setibssport,
4265 [7] = (iw_handler) orinoco_ioctl_getibssport,
4266 [9] = (iw_handler) orinoco_ioctl_getrid,
4267 };
4268
4269 static const struct iw_handler_def orinoco_handler_def = {
4270 .num_standard = ARRAY_SIZE(orinoco_handler),
4271 .num_private = ARRAY_SIZE(orinoco_private_handler),
4272 .num_private_args = ARRAY_SIZE(orinoco_privtab),
4273 .standard = orinoco_handler,
4274 .private = orinoco_private_handler,
4275 .private_args = orinoco_privtab,
4276 .get_wireless_stats = orinoco_get_wireless_stats,
4277 };
4278
4279 static void orinoco_get_drvinfo(struct net_device *dev,
4280 struct ethtool_drvinfo *info)
4281 {
4282 struct orinoco_private *priv = netdev_priv(dev);
4283
4284 strncpy(info->driver, DRIVER_NAME, sizeof(info->driver) - 1);
4285 strncpy(info->version, DRIVER_VERSION, sizeof(info->version) - 1);
4286 strncpy(info->fw_version, priv->fw_name, sizeof(info->fw_version) - 1);
4287 if (dev->class_dev.dev)
4288 strncpy(info->bus_info, dev->class_dev.dev->bus_id,
4289 sizeof(info->bus_info) - 1);
4290 else
4291 snprintf(info->bus_info, sizeof(info->bus_info) - 1,
4292 "PCMCIA %p", priv->hw.iobase);
4293 }
4294
4295 static struct ethtool_ops orinoco_ethtool_ops = {
4296 .get_drvinfo = orinoco_get_drvinfo,
4297 .get_link = ethtool_op_get_link,
4298 };
4299
4300 /********************************************************************/
4301 /* Module initialization */
4302 /********************************************************************/
4303
4304 EXPORT_SYMBOL(alloc_orinocodev);
4305 EXPORT_SYMBOL(free_orinocodev);
4306
4307 EXPORT_SYMBOL(__orinoco_up);
4308 EXPORT_SYMBOL(__orinoco_down);
4309 EXPORT_SYMBOL(orinoco_reinit_firmware);
4310
4311 EXPORT_SYMBOL(orinoco_interrupt);
4312
4313 /* Can't be declared "const" or the whole __initdata section will
4314 * become const */
4315 static char version[] __initdata = DRIVER_NAME " " DRIVER_VERSION
4316 " (David Gibson <hermes@gibson.dropbear.id.au>, "
4317 "Pavel Roskin <proski@gnu.org>, et al)";
4318
4319 static int __init init_orinoco(void)
4320 {
4321 printk(KERN_DEBUG "%s\n", version);
4322 return 0;
4323 }
4324
4325 static void __exit exit_orinoco(void)
4326 {
4327 }
4328
4329 module_init(init_orinoco);
4330 module_exit(exit_orinoco);
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