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Linux 2.6.20.7
[linux/fpc-iii.git] / drivers / net / wireless / orinoco.c
blob936c888e03e15aa44352285ea3c952a15ea587e0
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/if_arp.h>
86 #include <linux/wireless.h>
87 #include <net/iw_handler.h>
88 #include <net/ieee80211.h>
89
90 #include "hermes_rid.h"
91 #include "orinoco.h"
92
93 /********************************************************************/
94 /* Module information */
95 /********************************************************************/
96
97 MODULE_AUTHOR("Pavel Roskin <proski@gnu.org> & David Gibson <hermes@gibson.dropbear.id.au>");
98 MODULE_DESCRIPTION("Driver for Lucent Orinoco, Prism II based and similar wireless cards");
99 MODULE_LICENSE("Dual MPL/GPL");
100
101 /* Level of debugging. Used in the macros in orinoco.h */
102 #ifdef ORINOCO_DEBUG
103 int orinoco_debug = ORINOCO_DEBUG;
104 module_param(orinoco_debug, int, 0644);
105 MODULE_PARM_DESC(orinoco_debug, "Debug level");
106 EXPORT_SYMBOL(orinoco_debug);
107 #endif
108
109 static int suppress_linkstatus; /* = 0 */
110 module_param(suppress_linkstatus, bool, 0644);
111 MODULE_PARM_DESC(suppress_linkstatus, "Don't log link status changes");
112 static int ignore_disconnect; /* = 0 */
113 module_param(ignore_disconnect, int, 0644);
114 MODULE_PARM_DESC(ignore_disconnect, "Don't report lost link to the network layer");
115
116 static int force_monitor; /* = 0 */
117 module_param(force_monitor, int, 0644);
118 MODULE_PARM_DESC(force_monitor, "Allow monitor mode for all firmware versions");
119
120 /********************************************************************/
121 /* Compile time configuration and compatibility stuff */
122 /********************************************************************/
123
124 /* We do this this way to avoid ifdefs in the actual code */
125 #ifdef WIRELESS_SPY
126 #define SPY_NUMBER(priv) (priv->spy_data.spy_number)
127 #else
128 #define SPY_NUMBER(priv) 0
129 #endif /* WIRELESS_SPY */
130
131 /********************************************************************/
132 /* Internal constants */
133 /********************************************************************/
134
135 /* 802.2 LLC/SNAP header used for Ethernet encapsulation over 802.11 */
136 static const u8 encaps_hdr[] = {0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00};
137 #define ENCAPS_OVERHEAD (sizeof(encaps_hdr) + 2)
138
139 #define ORINOCO_MIN_MTU 256
140 #define ORINOCO_MAX_MTU (IEEE80211_DATA_LEN - ENCAPS_OVERHEAD)
141
142 #define SYMBOL_MAX_VER_LEN (14)
143 #define USER_BAP 0
144 #define IRQ_BAP 1
145 #define MAX_IRQLOOPS_PER_IRQ 10
146 #define MAX_IRQLOOPS_PER_JIFFY (20000/HZ) /* Based on a guestimate of
147 * how many events the
148 * device could
149 * legitimately generate */
150 #define SMALL_KEY_SIZE 5
151 #define LARGE_KEY_SIZE 13
152 #define TX_NICBUF_SIZE_BUG 1585 /* Bug in Symbol firmware */
153
154 #define DUMMY_FID 0xFFFF
155
156 /*#define MAX_MULTICAST(priv) (priv->firmware_type == FIRMWARE_TYPE_AGERE ? \
157 HERMES_MAX_MULTICAST : 0)*/
158 #define MAX_MULTICAST(priv) (HERMES_MAX_MULTICAST)
159
160 #define ORINOCO_INTEN (HERMES_EV_RX | HERMES_EV_ALLOC \
161 | HERMES_EV_TX | HERMES_EV_TXEXC \
162 | HERMES_EV_WTERR | HERMES_EV_INFO \
163 | HERMES_EV_INFDROP )
164
165 #define MAX_RID_LEN 1024
166
167 static const struct iw_handler_def orinoco_handler_def;
168 static const struct ethtool_ops orinoco_ethtool_ops;
169
170 /********************************************************************/
171 /* Data tables */
172 /********************************************************************/
173
174 /* The frequency of each channel in MHz */
175 static const long channel_frequency[] = {
176 2412, 2417, 2422, 2427, 2432, 2437, 2442,
177 2447, 2452, 2457, 2462, 2467, 2472, 2484
178 };
179 #define NUM_CHANNELS ARRAY_SIZE(channel_frequency)
180
181 /* This tables gives the actual meanings of the bitrate IDs returned
182 * by the firmware. */
183 static struct {
184 int bitrate; /* in 100s of kilobits */
185 int automatic;
186 u16 agere_txratectrl;
187 u16 intersil_txratectrl;
188 } bitrate_table[] = {
189 {110, 1, 3, 15}, /* Entry 0 is the default */
190 {10, 0, 1, 1},
191 {10, 1, 1, 1},
192 {20, 0, 2, 2},
193 {20, 1, 6, 3},
194 {55, 0, 4, 4},
195 {55, 1, 7, 7},
196 {110, 0, 5, 8},
197 };
198 #define BITRATE_TABLE_SIZE ARRAY_SIZE(bitrate_table)
199
200 /********************************************************************/
201 /* Data types */
202 /********************************************************************/
203
204 /* Beginning of the Tx descriptor, used in TxExc handling */
205 struct hermes_txexc_data {
206 struct hermes_tx_descriptor desc;
207 __le16 frame_ctl;
208 __le16 duration_id;
209 u8 addr1[ETH_ALEN];
210 } __attribute__ ((packed));
211
212 /* Rx frame header except compatibility 802.3 header */
213 struct hermes_rx_descriptor {
214 /* Control */
215 __le16 status;
216 __le32 time;
217 u8 silence;
218 u8 signal;
219 u8 rate;
220 u8 rxflow;
221 __le32 reserved;
222
223 /* 802.11 header */
224 __le16 frame_ctl;
225 __le16 duration_id;
226 u8 addr1[ETH_ALEN];
227 u8 addr2[ETH_ALEN];
228 u8 addr3[ETH_ALEN];
229 __le16 seq_ctl;
230 u8 addr4[ETH_ALEN];
231
232 /* Data length */
233 __le16 data_len;
234 } __attribute__ ((packed));
235
236 /********************************************************************/
237 /* Function prototypes */
238 /********************************************************************/
239
240 static int __orinoco_program_rids(struct net_device *dev);
241 static void __orinoco_set_multicast_list(struct net_device *dev);
242
243 /********************************************************************/
244 /* Internal helper functions */
245 /********************************************************************/
246
247 static inline void set_port_type(struct orinoco_private *priv)
248 {
249 switch (priv->iw_mode) {
250 case IW_MODE_INFRA:
251 priv->port_type = 1;
252 priv->createibss = 0;
253 break;
254 case IW_MODE_ADHOC:
255 if (priv->prefer_port3) {
256 priv->port_type = 3;
257 priv->createibss = 0;
258 } else {
259 priv->port_type = priv->ibss_port;
260 priv->createibss = 1;
261 }
262 break;
263 case IW_MODE_MONITOR:
264 priv->port_type = 3;
265 priv->createibss = 0;
266 break;
267 default:
268 printk(KERN_ERR "%s: Invalid priv->iw_mode in set_port_type()\n",
269 priv->ndev->name);
270 }
271 }
272
273 /********************************************************************/
274 /* Device methods */
275 /********************************************************************/
276
277 static int orinoco_open(struct net_device *dev)
278 {
279 struct orinoco_private *priv = netdev_priv(dev);
280 unsigned long flags;
281 int err;
282
283 if (orinoco_lock(priv, &flags) != 0)
284 return -EBUSY;
285
286 err = __orinoco_up(dev);
287
288 if (! err)
289 priv->open = 1;
290
291 orinoco_unlock(priv, &flags);
292
293 return err;
294 }
295
296 static int orinoco_stop(struct net_device *dev)
297 {
298 struct orinoco_private *priv = netdev_priv(dev);
299 int err = 0;
300
301 /* We mustn't use orinoco_lock() here, because we need to be
302 able to close the interface even if hw_unavailable is set
303 (e.g. as we're released after a PC Card removal) */
304 spin_lock_irq(&priv->lock);
305
306 priv->open = 0;
307
308 err = __orinoco_down(dev);
309
310 spin_unlock_irq(&priv->lock);
311
312 return err;
313 }
314
315 static struct net_device_stats *orinoco_get_stats(struct net_device *dev)
316 {
317 struct orinoco_private *priv = netdev_priv(dev);
318
319 return &priv->stats;
320 }
321
322 static struct iw_statistics *orinoco_get_wireless_stats(struct net_device *dev)
323 {
324 struct orinoco_private *priv = netdev_priv(dev);
325 hermes_t *hw = &priv->hw;
326 struct iw_statistics *wstats = &priv->wstats;
327 int err;
328 unsigned long flags;
329
330 if (! netif_device_present(dev)) {
331 printk(KERN_WARNING "%s: get_wireless_stats() called while device not present\n",
332 dev->name);
333 return NULL; /* FIXME: Can we do better than this? */
334 }
335
336 /* If busy, return the old stats. Returning NULL may cause
337 * the interface to disappear from /proc/net/wireless */
338 if (orinoco_lock(priv, &flags) != 0)
339 return wstats;
340
341 /* We can't really wait for the tallies inquiry command to
342 * complete, so we just use the previous results and trigger
343 * a new tallies inquiry command for next time - Jean II */
344 /* FIXME: Really we should wait for the inquiry to come back -
345 * as it is the stats we give don't make a whole lot of sense.
346 * Unfortunately, it's not clear how to do that within the
347 * wireless extensions framework: I think we're in user
348 * context, but a lock seems to be held by the time we get in
349 * here so we're not safe to sleep here. */
350 hermes_inquire(hw, HERMES_INQ_TALLIES);
351
352 if (priv->iw_mode == IW_MODE_ADHOC) {
353 memset(&wstats->qual, 0, sizeof(wstats->qual));
354 /* If a spy address is defined, we report stats of the
355 * first spy address - Jean II */
356 if (SPY_NUMBER(priv)) {
357 wstats->qual.qual = priv->spy_data.spy_stat[0].qual;
358 wstats->qual.level = priv->spy_data.spy_stat[0].level;
359 wstats->qual.noise = priv->spy_data.spy_stat[0].noise;
360 wstats->qual.updated = priv->spy_data.spy_stat[0].updated;
361 }
362 } else {
363 struct {
364 __le16 qual, signal, noise, unused;
365 } __attribute__ ((packed)) cq;
366
367 err = HERMES_READ_RECORD(hw, USER_BAP,
368 HERMES_RID_COMMSQUALITY, &cq);
369
370 if (!err) {
371 wstats->qual.qual = (int)le16_to_cpu(cq.qual);
372 wstats->qual.level = (int)le16_to_cpu(cq.signal) - 0x95;
373 wstats->qual.noise = (int)le16_to_cpu(cq.noise) - 0x95;
374 wstats->qual.updated = 7;
375 }
376 }
377
378 orinoco_unlock(priv, &flags);
379 return wstats;
380 }
381
382 static void orinoco_set_multicast_list(struct net_device *dev)
383 {
384 struct orinoco_private *priv = netdev_priv(dev);
385 unsigned long flags;
386
387 if (orinoco_lock(priv, &flags) != 0) {
388 printk(KERN_DEBUG "%s: orinoco_set_multicast_list() "
389 "called when hw_unavailable\n", dev->name);
390 return;
391 }
392
393 __orinoco_set_multicast_list(dev);
394 orinoco_unlock(priv, &flags);
395 }
396
397 static int orinoco_change_mtu(struct net_device *dev, int new_mtu)
398 {
399 struct orinoco_private *priv = netdev_priv(dev);
400
401 if ( (new_mtu < ORINOCO_MIN_MTU) || (new_mtu > ORINOCO_MAX_MTU) )
402 return -EINVAL;
403
404 if ( (new_mtu + ENCAPS_OVERHEAD + IEEE80211_HLEN) >
405 (priv->nicbuf_size - ETH_HLEN) )
406 return -EINVAL;
407
408 dev->mtu = new_mtu;
409
410 return 0;
411 }
412
413 /********************************************************************/
414 /* Tx path */
415 /********************************************************************/
416
417 static int orinoco_xmit(struct sk_buff *skb, struct net_device *dev)
418 {
419 struct orinoco_private *priv = netdev_priv(dev);
420 struct net_device_stats *stats = &priv->stats;
421 hermes_t *hw = &priv->hw;
422 int err = 0;
423 u16 txfid = priv->txfid;
424 struct ethhdr *eh;
425 int data_off;
426 struct hermes_tx_descriptor desc;
427 unsigned long flags;
428
429 if (! netif_running(dev)) {
430 printk(KERN_ERR "%s: Tx on stopped device!\n",
431 dev->name);
432 return NETDEV_TX_BUSY;
433 }
434
435 if (netif_queue_stopped(dev)) {
436 printk(KERN_DEBUG "%s: Tx while transmitter busy!\n",
437 dev->name);
438 return NETDEV_TX_BUSY;
439 }
440
441 if (orinoco_lock(priv, &flags) != 0) {
442 printk(KERN_ERR "%s: orinoco_xmit() called while hw_unavailable\n",
443 dev->name);
444 return NETDEV_TX_BUSY;
445 }
446
447 if (! netif_carrier_ok(dev) || (priv->iw_mode == IW_MODE_MONITOR)) {
448 /* Oops, the firmware hasn't established a connection,
449 silently drop the packet (this seems to be the
450 safest approach). */
451 goto drop;
452 }
453
454 /* Check packet length */
455 if (skb->len < ETH_HLEN)
456 goto drop;
457
458 eh = (struct ethhdr *)skb->data;
459
460 memset(&desc, 0, sizeof(desc));
461 desc.tx_control = cpu_to_le16(HERMES_TXCTRL_TX_OK | HERMES_TXCTRL_TX_EX);
462 err = hermes_bap_pwrite(hw, USER_BAP, &desc, sizeof(desc), txfid, 0);
463 if (err) {
464 if (net_ratelimit())
465 printk(KERN_ERR "%s: Error %d writing Tx descriptor "
466 "to BAP\n", dev->name, err);
467 goto busy;
468 }
469
470 /* Clear the 802.11 header and data length fields - some
471 * firmwares (e.g. Lucent/Agere 8.xx) appear to get confused
472 * if this isn't done. */
473 hermes_clear_words(hw, HERMES_DATA0,
474 HERMES_802_3_OFFSET - HERMES_802_11_OFFSET);
475
476 /* Encapsulate Ethernet-II frames */
477 if (ntohs(eh->h_proto) > ETH_DATA_LEN) { /* Ethernet-II frame */
478 struct header_struct {
479 struct ethhdr eth; /* 802.3 header */
480 u8 encap[6]; /* 802.2 header */
481 } __attribute__ ((packed)) hdr;
482
483 /* Strip destination and source from the data */
484 skb_pull(skb, 2 * ETH_ALEN);
485 data_off = HERMES_802_2_OFFSET + sizeof(encaps_hdr);
486
487 /* And move them to a separate header */
488 memcpy(&hdr.eth, eh, 2 * ETH_ALEN);
489 hdr.eth.h_proto = htons(sizeof(encaps_hdr) + skb->len);
490 memcpy(hdr.encap, encaps_hdr, sizeof(encaps_hdr));
491
492 err = hermes_bap_pwrite(hw, USER_BAP, &hdr, sizeof(hdr),
493 txfid, HERMES_802_3_OFFSET);
494 if (err) {
495 if (net_ratelimit())
496 printk(KERN_ERR "%s: Error %d writing packet "
497 "header to BAP\n", dev->name, err);
498 goto busy;
499 }
500 } else { /* IEEE 802.3 frame */
501 data_off = HERMES_802_3_OFFSET;
502 }
503
504 err = hermes_bap_pwrite(hw, USER_BAP, skb->data, skb->len,
505 txfid, data_off);
506 if (err) {
507 printk(KERN_ERR "%s: Error %d writing packet to BAP\n",
508 dev->name, err);
509 goto busy;
510 }
511
512 /* Finally, we actually initiate the send */
513 netif_stop_queue(dev);
514
515 err = hermes_docmd_wait(hw, HERMES_CMD_TX | HERMES_CMD_RECL,
516 txfid, NULL);
517 if (err) {
518 netif_start_queue(dev);
519 if (net_ratelimit())
520 printk(KERN_ERR "%s: Error %d transmitting packet\n",
521 dev->name, err);
522 goto busy;
523 }
524
525 dev->trans_start = jiffies;
526 stats->tx_bytes += data_off + skb->len;
527 goto ok;
528
529 drop:
530 stats->tx_errors++;
531 stats->tx_dropped++;
532
533 ok:
534 orinoco_unlock(priv, &flags);
535 dev_kfree_skb(skb);
536 return NETDEV_TX_OK;
537
538 busy:
539 if (err == -EIO)
540 schedule_work(&priv->reset_work);
541 orinoco_unlock(priv, &flags);
542 return NETDEV_TX_BUSY;
543 }
544
545 static void __orinoco_ev_alloc(struct net_device *dev, hermes_t *hw)
546 {
547 struct orinoco_private *priv = netdev_priv(dev);
548 u16 fid = hermes_read_regn(hw, ALLOCFID);
549
550 if (fid != priv->txfid) {
551 if (fid != DUMMY_FID)
552 printk(KERN_WARNING "%s: Allocate event on unexpected fid (%04X)\n",
553 dev->name, fid);
554 return;
555 }
556
557 hermes_write_regn(hw, ALLOCFID, DUMMY_FID);
558 }
559
560 static void __orinoco_ev_tx(struct net_device *dev, hermes_t *hw)
561 {
562 struct orinoco_private *priv = netdev_priv(dev);
563 struct net_device_stats *stats = &priv->stats;
564
565 stats->tx_packets++;
566
567 netif_wake_queue(dev);
568
569 hermes_write_regn(hw, TXCOMPLFID, DUMMY_FID);
570 }
571
572 static void __orinoco_ev_txexc(struct net_device *dev, hermes_t *hw)
573 {
574 struct orinoco_private *priv = netdev_priv(dev);
575 struct net_device_stats *stats = &priv->stats;
576 u16 fid = hermes_read_regn(hw, TXCOMPLFID);
577 u16 status;
578 struct hermes_txexc_data hdr;
579 int err = 0;
580
581 if (fid == DUMMY_FID)
582 return; /* Nothing's really happened */
583
584 /* Read part of the frame header - we need status and addr1 */
585 err = hermes_bap_pread(hw, IRQ_BAP, &hdr,
586 sizeof(struct hermes_txexc_data),
587 fid, 0);
588
589 hermes_write_regn(hw, TXCOMPLFID, DUMMY_FID);
590 stats->tx_errors++;
591
592 if (err) {
593 printk(KERN_WARNING "%s: Unable to read descriptor on Tx error "
594 "(FID=%04X error %d)\n",
595 dev->name, fid, err);
596 return;
597 }
598
599 DEBUG(1, "%s: Tx error, err %d (FID=%04X)\n", dev->name,
600 err, fid);
601
602 /* We produce a TXDROP event only for retry or lifetime
603 * exceeded, because that's the only status that really mean
604 * that this particular node went away.
605 * Other errors means that *we* screwed up. - Jean II */
606 status = le16_to_cpu(hdr.desc.status);
607 if (status & (HERMES_TXSTAT_RETRYERR | HERMES_TXSTAT_AGEDERR)) {
608 union iwreq_data wrqu;
609
610 /* Copy 802.11 dest address.
611 * We use the 802.11 header because the frame may
612 * not be 802.3 or may be mangled...
613 * In Ad-Hoc mode, it will be the node address.
614 * In managed mode, it will be most likely the AP addr
615 * User space will figure out how to convert it to
616 * whatever it needs (IP address or else).
617 * - Jean II */
618 memcpy(wrqu.addr.sa_data, hdr.addr1, ETH_ALEN);
619 wrqu.addr.sa_family = ARPHRD_ETHER;
620
621 /* Send event to user space */
622 wireless_send_event(dev, IWEVTXDROP, &wrqu, NULL);
623 }
624
625 netif_wake_queue(dev);
626 }
627
628 static void orinoco_tx_timeout(struct net_device *dev)
629 {
630 struct orinoco_private *priv = netdev_priv(dev);
631 struct net_device_stats *stats = &priv->stats;
632 struct hermes *hw = &priv->hw;
633
634 printk(KERN_WARNING "%s: Tx timeout! "
635 "ALLOCFID=%04x, TXCOMPLFID=%04x, EVSTAT=%04x\n",
636 dev->name, hermes_read_regn(hw, ALLOCFID),
637 hermes_read_regn(hw, TXCOMPLFID), hermes_read_regn(hw, EVSTAT));
638
639 stats->tx_errors++;
640
641 schedule_work(&priv->reset_work);
642 }
643
644 /********************************************************************/
645 /* Rx path (data frames) */
646 /********************************************************************/
647
648 /* Does the frame have a SNAP header indicating it should be
649 * de-encapsulated to Ethernet-II? */
650 static inline int is_ethersnap(void *_hdr)
651 {
652 u8 *hdr = _hdr;
653
654 /* We de-encapsulate all packets which, a) have SNAP headers
655 * (i.e. SSAP=DSAP=0xaa and CTRL=0x3 in the 802.2 LLC header
656 * and where b) the OUI of the SNAP header is 00:00:00 or
657 * 00:00:f8 - we need both because different APs appear to use
658 * different OUIs for some reason */
659 return (memcmp(hdr, &encaps_hdr, 5) == 0)
660 && ( (hdr[5] == 0x00) || (hdr[5] == 0xf8) );
661 }
662
663 static inline void orinoco_spy_gather(struct net_device *dev, u_char *mac,
664 int level, int noise)
665 {
666 struct iw_quality wstats;
667 wstats.level = level - 0x95;
668 wstats.noise = noise - 0x95;
669 wstats.qual = (level > noise) ? (level - noise) : 0;
670 wstats.updated = 7;
671 /* Update spy records */
672 wireless_spy_update(dev, mac, &wstats);
673 }
674
675 static void orinoco_stat_gather(struct net_device *dev,
676 struct sk_buff *skb,
677 struct hermes_rx_descriptor *desc)
678 {
679 struct orinoco_private *priv = netdev_priv(dev);
680
681 /* Using spy support with lots of Rx packets, like in an
682 * infrastructure (AP), will really slow down everything, because
683 * the MAC address must be compared to each entry of the spy list.
684 * If the user really asks for it (set some address in the
685 * spy list), we do it, but he will pay the price.
686 * Note that to get here, you need both WIRELESS_SPY
687 * compiled in AND some addresses in the list !!!
688 */
689 /* Note : gcc will optimise the whole section away if
690 * WIRELESS_SPY is not defined... - Jean II */
691 if (SPY_NUMBER(priv)) {
692 orinoco_spy_gather(dev, skb->mac.raw + ETH_ALEN,
693 desc->signal, desc->silence);
694 }
695 }
696
697 /*
698 * orinoco_rx_monitor - handle received monitor frames.
699 *
700 * Arguments:
701 * dev network device
702 * rxfid received FID
703 * desc rx descriptor of the frame
704 *
705 * Call context: interrupt
706 */
707 static void orinoco_rx_monitor(struct net_device *dev, u16 rxfid,
708 struct hermes_rx_descriptor *desc)
709 {
710 u32 hdrlen = 30; /* return full header by default */
711 u32 datalen = 0;
712 u16 fc;
713 int err;
714 int len;
715 struct sk_buff *skb;
716 struct orinoco_private *priv = netdev_priv(dev);
717 struct net_device_stats *stats = &priv->stats;
718 hermes_t *hw = &priv->hw;
719
720 len = le16_to_cpu(desc->data_len);
721
722 /* Determine the size of the header and the data */
723 fc = le16_to_cpu(desc->frame_ctl);
724 switch (fc & IEEE80211_FCTL_FTYPE) {
725 case IEEE80211_FTYPE_DATA:
726 if ((fc & IEEE80211_FCTL_TODS)
727 && (fc & IEEE80211_FCTL_FROMDS))
728 hdrlen = 30;
729 else
730 hdrlen = 24;
731 datalen = len;
732 break;
733 case IEEE80211_FTYPE_MGMT:
734 hdrlen = 24;
735 datalen = len;
736 break;
737 case IEEE80211_FTYPE_CTL:
738 switch (fc & IEEE80211_FCTL_STYPE) {
739 case IEEE80211_STYPE_PSPOLL:
740 case IEEE80211_STYPE_RTS:
741 case IEEE80211_STYPE_CFEND:
742 case IEEE80211_STYPE_CFENDACK:
743 hdrlen = 16;
744 break;
745 case IEEE80211_STYPE_CTS:
746 case IEEE80211_STYPE_ACK:
747 hdrlen = 10;
748 break;
749 }
750 break;
751 default:
752 /* Unknown frame type */
753 break;
754 }
755
756 /* sanity check the length */
757 if (datalen > IEEE80211_DATA_LEN + 12) {
758 printk(KERN_DEBUG "%s: oversized monitor frame, "
759 "data length = %d\n", dev->name, datalen);
760 stats->rx_length_errors++;
761 goto update_stats;
762 }
763
764 skb = dev_alloc_skb(hdrlen + datalen);
765 if (!skb) {
766 printk(KERN_WARNING "%s: Cannot allocate skb for monitor frame\n",
767 dev->name);
768 goto update_stats;
769 }
770
771 /* Copy the 802.11 header to the skb */
772 memcpy(skb_put(skb, hdrlen), &(desc->frame_ctl), hdrlen);
773 skb->mac.raw = skb->data;
774
775 /* If any, copy the data from the card to the skb */
776 if (datalen > 0) {
777 err = hermes_bap_pread(hw, IRQ_BAP, skb_put(skb, datalen),
778 ALIGN(datalen, 2), rxfid,
779 HERMES_802_2_OFFSET);
780 if (err) {
781 printk(KERN_ERR "%s: error %d reading monitor frame\n",
782 dev->name, err);
783 goto drop;
784 }
785 }
786
787 skb->dev = dev;
788 skb->ip_summed = CHECKSUM_NONE;
789 skb->pkt_type = PACKET_OTHERHOST;
790 skb->protocol = __constant_htons(ETH_P_802_2);
791
792 dev->last_rx = jiffies;
793 stats->rx_packets++;
794 stats->rx_bytes += skb->len;
795
796 netif_rx(skb);
797 return;
798
799 drop:
800 dev_kfree_skb_irq(skb);
801 update_stats:
802 stats->rx_errors++;
803 stats->rx_dropped++;
804 }
805
806 static void __orinoco_ev_rx(struct net_device *dev, hermes_t *hw)
807 {
808 struct orinoco_private *priv = netdev_priv(dev);
809 struct net_device_stats *stats = &priv->stats;
810 struct iw_statistics *wstats = &priv->wstats;
811 struct sk_buff *skb = NULL;
812 u16 rxfid, status, fc;
813 int length;
814 struct hermes_rx_descriptor desc;
815 struct ethhdr *hdr;
816 int err;
817
818 rxfid = hermes_read_regn(hw, RXFID);
819
820 err = hermes_bap_pread(hw, IRQ_BAP, &desc, sizeof(desc),
821 rxfid, 0);
822 if (err) {
823 printk(KERN_ERR "%s: error %d reading Rx descriptor. "
824 "Frame dropped.\n", dev->name, err);
825 goto update_stats;
826 }
827
828 status = le16_to_cpu(desc.status);
829
830 if (status & HERMES_RXSTAT_BADCRC) {
831 DEBUG(1, "%s: Bad CRC on Rx. Frame dropped.\n",
832 dev->name);
833 stats->rx_crc_errors++;
834 goto update_stats;
835 }
836
837 /* Handle frames in monitor mode */
838 if (priv->iw_mode == IW_MODE_MONITOR) {
839 orinoco_rx_monitor(dev, rxfid, &desc);
840 return;
841 }
842
843 if (status & HERMES_RXSTAT_UNDECRYPTABLE) {
844 DEBUG(1, "%s: Undecryptable frame on Rx. Frame dropped.\n",
845 dev->name);
846 wstats->discard.code++;
847 goto update_stats;
848 }
849
850 length = le16_to_cpu(desc.data_len);
851 fc = le16_to_cpu(desc.frame_ctl);
852
853 /* Sanity checks */
854 if (length < 3) { /* No for even an 802.2 LLC header */
855 /* At least on Symbol firmware with PCF we get quite a
856 lot of these legitimately - Poll frames with no
857 data. */
858 return;
859 }
860 if (length > IEEE80211_DATA_LEN) {
861 printk(KERN_WARNING "%s: Oversized frame received (%d bytes)\n",
862 dev->name, length);
863 stats->rx_length_errors++;
864 goto update_stats;
865 }
866
867 /* We need space for the packet data itself, plus an ethernet
868 header, plus 2 bytes so we can align the IP header on a
869 32bit boundary, plus 1 byte so we can read in odd length
870 packets from the card, which has an IO granularity of 16
871 bits */
872 skb = dev_alloc_skb(length+ETH_HLEN+2+1);
873 if (!skb) {
874 printk(KERN_WARNING "%s: Can't allocate skb for Rx\n",
875 dev->name);
876 goto update_stats;
877 }
878
879 /* We'll prepend the header, so reserve space for it. The worst
880 case is no decapsulation, when 802.3 header is prepended and
881 nothing is removed. 2 is for aligning the IP header. */
882 skb_reserve(skb, ETH_HLEN + 2);
883
884 err = hermes_bap_pread(hw, IRQ_BAP, skb_put(skb, length),
885 ALIGN(length, 2), rxfid,
886 HERMES_802_2_OFFSET);
887 if (err) {
888 printk(KERN_ERR "%s: error %d reading frame. "
889 "Frame dropped.\n", dev->name, err);
890 goto drop;
891 }
892
893 /* Handle decapsulation
894 * In most cases, the firmware tell us about SNAP frames.
895 * For some reason, the SNAP frames sent by LinkSys APs
896 * are not properly recognised by most firmwares.
897 * So, check ourselves */
898 if (length >= ENCAPS_OVERHEAD &&
899 (((status & HERMES_RXSTAT_MSGTYPE) == HERMES_RXSTAT_1042) ||
900 ((status & HERMES_RXSTAT_MSGTYPE) == HERMES_RXSTAT_TUNNEL) ||
901 is_ethersnap(skb->data))) {
902 /* These indicate a SNAP within 802.2 LLC within
903 802.11 frame which we'll need to de-encapsulate to
904 the original EthernetII frame. */
905 hdr = (struct ethhdr *)skb_push(skb, ETH_HLEN - ENCAPS_OVERHEAD);
906 } else {
907 /* 802.3 frame - prepend 802.3 header as is */
908 hdr = (struct ethhdr *)skb_push(skb, ETH_HLEN);
909 hdr->h_proto = htons(length);
910 }
911 memcpy(hdr->h_dest, desc.addr1, ETH_ALEN);
912 if (fc & IEEE80211_FCTL_FROMDS)
913 memcpy(hdr->h_source, desc.addr3, ETH_ALEN);
914 else
915 memcpy(hdr->h_source, desc.addr2, ETH_ALEN);
916
917 dev->last_rx = jiffies;
918 skb->dev = dev;
919 skb->protocol = eth_type_trans(skb, dev);
920 skb->ip_summed = CHECKSUM_NONE;
921 if (fc & IEEE80211_FCTL_TODS)
922 skb->pkt_type = PACKET_OTHERHOST;
923
924 /* Process the wireless stats if needed */
925 orinoco_stat_gather(dev, skb, &desc);
926
927 /* Pass the packet to the networking stack */
928 netif_rx(skb);
929 stats->rx_packets++;
930 stats->rx_bytes += length;
931
932 return;
933
934 drop:
935 dev_kfree_skb_irq(skb);
936 update_stats:
937 stats->rx_errors++;
938 stats->rx_dropped++;
939 }
940
941 /********************************************************************/
942 /* Rx path (info frames) */
943 /********************************************************************/
944
945 static void print_linkstatus(struct net_device *dev, u16 status)
946 {
947 char * s;
948
949 if (suppress_linkstatus)
950 return;
951
952 switch (status) {
953 case HERMES_LINKSTATUS_NOT_CONNECTED:
954 s = "Not Connected";
955 break;
956 case HERMES_LINKSTATUS_CONNECTED:
957 s = "Connected";
958 break;
959 case HERMES_LINKSTATUS_DISCONNECTED:
960 s = "Disconnected";
961 break;
962 case HERMES_LINKSTATUS_AP_CHANGE:
963 s = "AP Changed";
964 break;
965 case HERMES_LINKSTATUS_AP_OUT_OF_RANGE:
966 s = "AP Out of Range";
967 break;
968 case HERMES_LINKSTATUS_AP_IN_RANGE:
969 s = "AP In Range";
970 break;
971 case HERMES_LINKSTATUS_ASSOC_FAILED:
972 s = "Association Failed";
973 break;
974 default:
975 s = "UNKNOWN";
976 }
977
978 printk(KERN_INFO "%s: New link status: %s (%04x)\n",
979 dev->name, s, status);
980 }
981
982 /* Search scan results for requested BSSID, join it if found */
983 static void orinoco_join_ap(struct work_struct *work)
984 {
985 struct orinoco_private *priv =
986 container_of(work, struct orinoco_private, join_work);
987 struct net_device *dev = priv->ndev;
988 struct hermes *hw = &priv->hw;
989 int err;
990 unsigned long flags;
991 struct join_req {
992 u8 bssid[ETH_ALEN];
993 __le16 channel;
994 } __attribute__ ((packed)) req;
995 const int atom_len = offsetof(struct prism2_scan_apinfo, atim);
996 struct prism2_scan_apinfo *atom = NULL;
997 int offset = 4;
998 int found = 0;
999 u8 *buf;
1000 u16 len;
1001
1002 /* Allocate buffer for scan results */
1003 buf = kmalloc(MAX_SCAN_LEN, GFP_KERNEL);
1004 if (! buf)
1005 return;
1006
1007 if (orinoco_lock(priv, &flags) != 0)
1008 goto fail_lock;
1009
1010 /* Sanity checks in case user changed something in the meantime */
1011 if (! priv->bssid_fixed)
1012 goto out;
1013
1014 if (strlen(priv->desired_essid) == 0)
1015 goto out;
1016
1017 /* Read scan results from the firmware */
1018 err = hermes_read_ltv(hw, USER_BAP,
1019 HERMES_RID_SCANRESULTSTABLE,
1020 MAX_SCAN_LEN, &len, buf);
1021 if (err) {
1022 printk(KERN_ERR "%s: Cannot read scan results\n",
1023 dev->name);
1024 goto out;
1025 }
1026
1027 len = HERMES_RECLEN_TO_BYTES(len);
1028
1029 /* Go through the scan results looking for the channel of the AP
1030 * we were requested to join */
1031 for (; offset + atom_len <= len; offset += atom_len) {
1032 atom = (struct prism2_scan_apinfo *) (buf + offset);
1033 if (memcmp(&atom->bssid, priv->desired_bssid, ETH_ALEN) == 0) {
1034 found = 1;
1035 break;
1036 }
1037 }
1038
1039 if (! found) {
1040 DEBUG(1, "%s: Requested AP not found in scan results\n",
1041 dev->name);
1042 goto out;
1043 }
1044
1045 memcpy(req.bssid, priv->desired_bssid, ETH_ALEN);
1046 req.channel = atom->channel; /* both are little-endian */
1047 err = HERMES_WRITE_RECORD(hw, USER_BAP, HERMES_RID_CNFJOINREQUEST,
1048 &req);
1049 if (err)
1050 printk(KERN_ERR "%s: Error issuing join request\n", dev->name);
1051
1052 out:
1053 orinoco_unlock(priv, &flags);
1054
1055 fail_lock:
1056 kfree(buf);
1057 }
1058
1059 /* Send new BSSID to userspace */
1060 static void orinoco_send_wevents(struct work_struct *work)
1061 {
1062 struct orinoco_private *priv =
1063 container_of(work, struct orinoco_private, wevent_work);
1064 struct net_device *dev = priv->ndev;
1065 struct hermes *hw = &priv->hw;
1066 union iwreq_data wrqu;
1067 int err;
1068 unsigned long flags;
1069
1070 if (orinoco_lock(priv, &flags) != 0)
1071 return;
1072
1073 err = hermes_read_ltv(hw, IRQ_BAP, HERMES_RID_CURRENTBSSID,
1074 ETH_ALEN, NULL, wrqu.ap_addr.sa_data);
1075 if (err != 0)
1076 goto out;
1077
1078 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
1079
1080 /* Send event to user space */
1081 wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
1082
1083 out:
1084 orinoco_unlock(priv, &flags);
1085 }
1086
1087 static void __orinoco_ev_info(struct net_device *dev, hermes_t *hw)
1088 {
1089 struct orinoco_private *priv = netdev_priv(dev);
1090 u16 infofid;
1091 struct {
1092 __le16 len;
1093 __le16 type;
1094 } __attribute__ ((packed)) info;
1095 int len, type;
1096 int err;
1097
1098 /* This is an answer to an INQUIRE command that we did earlier,
1099 * or an information "event" generated by the card
1100 * The controller return to us a pseudo frame containing
1101 * the information in question - Jean II */
1102 infofid = hermes_read_regn(hw, INFOFID);
1103
1104 /* Read the info frame header - don't try too hard */
1105 err = hermes_bap_pread(hw, IRQ_BAP, &info, sizeof(info),
1106 infofid, 0);
1107 if (err) {
1108 printk(KERN_ERR "%s: error %d reading info frame. "
1109 "Frame dropped.\n", dev->name, err);
1110 return;
1111 }
1112
1113 len = HERMES_RECLEN_TO_BYTES(le16_to_cpu(info.len));
1114 type = le16_to_cpu(info.type);
1115
1116 switch (type) {
1117 case HERMES_INQ_TALLIES: {
1118 struct hermes_tallies_frame tallies;
1119 struct iw_statistics *wstats = &priv->wstats;
1120
1121 if (len > sizeof(tallies)) {
1122 printk(KERN_WARNING "%s: Tallies frame too long (%d bytes)\n",
1123 dev->name, len);
1124 len = sizeof(tallies);
1125 }
1126
1127 err = hermes_bap_pread(hw, IRQ_BAP, &tallies, len,
1128 infofid, sizeof(info));
1129 if (err)
1130 break;
1131
1132 /* Increment our various counters */
1133 /* wstats->discard.nwid - no wrong BSSID stuff */
1134 wstats->discard.code +=
1135 le16_to_cpu(tallies.RxWEPUndecryptable);
1136 if (len == sizeof(tallies))
1137 wstats->discard.code +=
1138 le16_to_cpu(tallies.RxDiscards_WEPICVError) +
1139 le16_to_cpu(tallies.RxDiscards_WEPExcluded);
1140 wstats->discard.misc +=
1141 le16_to_cpu(tallies.TxDiscardsWrongSA);
1142 wstats->discard.fragment +=
1143 le16_to_cpu(tallies.RxMsgInBadMsgFragments);
1144 wstats->discard.retries +=
1145 le16_to_cpu(tallies.TxRetryLimitExceeded);
1146 /* wstats->miss.beacon - no match */
1147 }
1148 break;
1149 case HERMES_INQ_LINKSTATUS: {
1150 struct hermes_linkstatus linkstatus;
1151 u16 newstatus;
1152 int connected;
1153
1154 if (priv->iw_mode == IW_MODE_MONITOR)
1155 break;
1156
1157 if (len != sizeof(linkstatus)) {
1158 printk(KERN_WARNING "%s: Unexpected size for linkstatus frame (%d bytes)\n",
1159 dev->name, len);
1160 break;
1161 }
1162
1163 err = hermes_bap_pread(hw, IRQ_BAP, &linkstatus, len,
1164 infofid, sizeof(info));
1165 if (err)
1166 break;
1167 newstatus = le16_to_cpu(linkstatus.linkstatus);
1168
1169 /* Symbol firmware uses "out of range" to signal that
1170 * the hostscan frame can be requested. */
1171 if (newstatus == HERMES_LINKSTATUS_AP_OUT_OF_RANGE &&
1172 priv->firmware_type == FIRMWARE_TYPE_SYMBOL &&
1173 priv->has_hostscan && priv->scan_inprogress) {
1174 hermes_inquire(hw, HERMES_INQ_HOSTSCAN_SYMBOL);
1175 break;
1176 }
1177
1178 connected = (newstatus == HERMES_LINKSTATUS_CONNECTED)
1179 || (newstatus == HERMES_LINKSTATUS_AP_CHANGE)
1180 || (newstatus == HERMES_LINKSTATUS_AP_IN_RANGE);
1181
1182 if (connected)
1183 netif_carrier_on(dev);
1184 else if (!ignore_disconnect)
1185 netif_carrier_off(dev);
1186
1187 if (newstatus != priv->last_linkstatus) {
1188 priv->last_linkstatus = newstatus;
1189 print_linkstatus(dev, newstatus);
1190 /* The info frame contains only one word which is the
1191 * status (see hermes.h). The status is pretty boring
1192 * in itself, that's why we export the new BSSID...
1193 * Jean II */
1194 schedule_work(&priv->wevent_work);
1195 }
1196 }
1197 break;
1198 case HERMES_INQ_SCAN:
1199 if (!priv->scan_inprogress && priv->bssid_fixed &&
1200 priv->firmware_type == FIRMWARE_TYPE_INTERSIL) {
1201 schedule_work(&priv->join_work);
1202 break;
1203 }
1204 /* fall through */
1205 case HERMES_INQ_HOSTSCAN:
1206 case HERMES_INQ_HOSTSCAN_SYMBOL: {
1207 /* Result of a scanning. Contains information about
1208 * cells in the vicinity - Jean II */
1209 union iwreq_data wrqu;
1210 unsigned char *buf;
1211
1212 /* Sanity check */
1213 if (len > 4096) {
1214 printk(KERN_WARNING "%s: Scan results too large (%d bytes)\n",
1215 dev->name, len);
1216 break;
1217 }
1218
1219 /* We are a strict producer. If the previous scan results
1220 * have not been consumed, we just have to drop this
1221 * frame. We can't remove the previous results ourselves,
1222 * that would be *very* racy... Jean II */
1223 if (priv->scan_result != NULL) {
1224 printk(KERN_WARNING "%s: Previous scan results not consumed, dropping info frame.\n", dev->name);
1225 break;
1226 }
1227
1228 /* Allocate buffer for results */
1229 buf = kmalloc(len, GFP_ATOMIC);
1230 if (buf == NULL)
1231 /* No memory, so can't printk()... */
1232 break;
1233
1234 /* Read scan data */
1235 err = hermes_bap_pread(hw, IRQ_BAP, (void *) buf, len,
1236 infofid, sizeof(info));
1237 if (err) {
1238 kfree(buf);
1239 break;
1240 }
1241
1242 #ifdef ORINOCO_DEBUG
1243 {
1244 int i;
1245 printk(KERN_DEBUG "Scan result [%02X", buf[0]);
1246 for(i = 1; i < (len * 2); i++)
1247 printk(":%02X", buf[i]);
1248 printk("]\n");
1249 }
1250 #endif /* ORINOCO_DEBUG */
1251
1252 /* Allow the clients to access the results */
1253 priv->scan_len = len;
1254 priv->scan_result = buf;
1255
1256 /* Send an empty event to user space.
1257 * We don't send the received data on the event because
1258 * it would require us to do complex transcoding, and
1259 * we want to minimise the work done in the irq handler
1260 * Use a request to extract the data - Jean II */
1261 wrqu.data.length = 0;
1262 wrqu.data.flags = 0;
1263 wireless_send_event(dev, SIOCGIWSCAN, &wrqu, NULL);
1264 }
1265 break;
1266 case HERMES_INQ_SEC_STAT_AGERE:
1267 /* Security status (Agere specific) */
1268 /* Ignore this frame for now */
1269 if (priv->firmware_type == FIRMWARE_TYPE_AGERE)
1270 break;
1271 /* fall through */
1272 default:
1273 printk(KERN_DEBUG "%s: Unknown information frame received: "
1274 "type 0x%04x, length %d\n", dev->name, type, len);
1275 /* We don't actually do anything about it */
1276 break;
1277 }
1278 }
1279
1280 static void __orinoco_ev_infdrop(struct net_device *dev, hermes_t *hw)
1281 {
1282 if (net_ratelimit())
1283 printk(KERN_DEBUG "%s: Information frame lost.\n", dev->name);
1284 }
1285
1286 /********************************************************************/
1287 /* Internal hardware control routines */
1288 /********************************************************************/
1289
1290 int __orinoco_up(struct net_device *dev)
1291 {
1292 struct orinoco_private *priv = netdev_priv(dev);
1293 struct hermes *hw = &priv->hw;
1294 int err;
1295
1296 netif_carrier_off(dev); /* just to make sure */
1297
1298 err = __orinoco_program_rids(dev);
1299 if (err) {
1300 printk(KERN_ERR "%s: Error %d configuring card\n",
1301 dev->name, err);
1302 return err;
1303 }
1304
1305 /* Fire things up again */
1306 hermes_set_irqmask(hw, ORINOCO_INTEN);
1307 err = hermes_enable_port(hw, 0);
1308 if (err) {
1309 printk(KERN_ERR "%s: Error %d enabling MAC port\n",
1310 dev->name, err);
1311 return err;
1312 }
1313
1314 netif_start_queue(dev);
1315
1316 return 0;
1317 }
1318
1319 int __orinoco_down(struct net_device *dev)
1320 {
1321 struct orinoco_private *priv = netdev_priv(dev);
1322 struct hermes *hw = &priv->hw;
1323 int err;
1324
1325 netif_stop_queue(dev);
1326
1327 if (! priv->hw_unavailable) {
1328 if (! priv->broken_disableport) {
1329 err = hermes_disable_port(hw, 0);
1330 if (err) {
1331 /* Some firmwares (e.g. Intersil 1.3.x) seem
1332 * to have problems disabling the port, oh
1333 * well, too bad. */
1334 printk(KERN_WARNING "%s: Error %d disabling MAC port\n",
1335 dev->name, err);
1336 priv->broken_disableport = 1;
1337 }
1338 }
1339 hermes_set_irqmask(hw, 0);
1340 hermes_write_regn(hw, EVACK, 0xffff);
1341 }
1342
1343 /* firmware will have to reassociate */
1344 netif_carrier_off(dev);
1345 priv->last_linkstatus = 0xffff;
1346
1347 return 0;
1348 }
1349
1350 static int orinoco_allocate_fid(struct net_device *dev)
1351 {
1352 struct orinoco_private *priv = netdev_priv(dev);
1353 struct hermes *hw = &priv->hw;
1354 int err;
1355
1356 err = hermes_allocate(hw, priv->nicbuf_size, &priv->txfid);
1357 if (err == -EIO && priv->nicbuf_size > TX_NICBUF_SIZE_BUG) {
1358 /* Try workaround for old Symbol firmware bug */
1359 printk(KERN_WARNING "%s: firmware ALLOC bug detected "
1360 "(old Symbol firmware?). Trying to work around... ",
1361 dev->name);
1362
1363 priv->nicbuf_size = TX_NICBUF_SIZE_BUG;
1364 err = hermes_allocate(hw, priv->nicbuf_size, &priv->txfid);
1365 if (err)
1366 printk("failed!\n");
1367 else
1368 printk("ok.\n");
1369 }
1370
1371 return err;
1372 }
1373
1374 int orinoco_reinit_firmware(struct net_device *dev)
1375 {
1376 struct orinoco_private *priv = netdev_priv(dev);
1377 struct hermes *hw = &priv->hw;
1378 int err;
1379
1380 err = hermes_init(hw);
1381 if (!err)
1382 err = orinoco_allocate_fid(dev);
1383
1384 return err;
1385 }
1386
1387 static int __orinoco_hw_set_bitrate(struct orinoco_private *priv)
1388 {
1389 hermes_t *hw = &priv->hw;
1390 int err = 0;
1391
1392 if (priv->bitratemode >= BITRATE_TABLE_SIZE) {
1393 printk(KERN_ERR "%s: BUG: Invalid bitrate mode %d\n",
1394 priv->ndev->name, priv->bitratemode);
1395 return -EINVAL;
1396 }
1397
1398 switch (priv->firmware_type) {
1399 case FIRMWARE_TYPE_AGERE:
1400 err = hermes_write_wordrec(hw, USER_BAP,
1401 HERMES_RID_CNFTXRATECONTROL,
1402 bitrate_table[priv->bitratemode].agere_txratectrl);
1403 break;
1404 case FIRMWARE_TYPE_INTERSIL:
1405 case FIRMWARE_TYPE_SYMBOL:
1406 err = hermes_write_wordrec(hw, USER_BAP,
1407 HERMES_RID_CNFTXRATECONTROL,
1408 bitrate_table[priv->bitratemode].intersil_txratectrl);
1409 break;
1410 default:
1411 BUG();
1412 }
1413
1414 return err;
1415 }
1416
1417 /* Set fixed AP address */
1418 static int __orinoco_hw_set_wap(struct orinoco_private *priv)
1419 {
1420 int roaming_flag;
1421 int err = 0;
1422 hermes_t *hw = &priv->hw;
1423
1424 switch (priv->firmware_type) {
1425 case FIRMWARE_TYPE_AGERE:
1426 /* not supported */
1427 break;
1428 case FIRMWARE_TYPE_INTERSIL:
1429 if (priv->bssid_fixed)
1430 roaming_flag = 2;
1431 else
1432 roaming_flag = 1;
1433
1434 err = hermes_write_wordrec(hw, USER_BAP,
1435 HERMES_RID_CNFROAMINGMODE,
1436 roaming_flag);
1437 break;
1438 case FIRMWARE_TYPE_SYMBOL:
1439 err = HERMES_WRITE_RECORD(hw, USER_BAP,
1440 HERMES_RID_CNFMANDATORYBSSID_SYMBOL,
1441 &priv->desired_bssid);
1442 break;
1443 }
1444 return err;
1445 }
1446
1447 /* Change the WEP keys and/or the current keys. Can be called
1448 * either from __orinoco_hw_setup_wep() or directly from
1449 * orinoco_ioctl_setiwencode(). In the later case the association
1450 * with the AP is not broken (if the firmware can handle it),
1451 * which is needed for 802.1x implementations. */
1452 static int __orinoco_hw_setup_wepkeys(struct orinoco_private *priv)
1453 {
1454 hermes_t *hw = &priv->hw;
1455 int err = 0;
1456
1457 switch (priv->firmware_type) {
1458 case FIRMWARE_TYPE_AGERE:
1459 err = HERMES_WRITE_RECORD(hw, USER_BAP,
1460 HERMES_RID_CNFWEPKEYS_AGERE,
1461 &priv->keys);
1462 if (err)
1463 return err;
1464 err = hermes_write_wordrec(hw, USER_BAP,
1465 HERMES_RID_CNFTXKEY_AGERE,
1466 priv->tx_key);
1467 if (err)
1468 return err;
1469 break;
1470 case FIRMWARE_TYPE_INTERSIL:
1471 case FIRMWARE_TYPE_SYMBOL:
1472 {
1473 int keylen;
1474 int i;
1475
1476 /* Force uniform key length to work around firmware bugs */
1477 keylen = le16_to_cpu(priv->keys[priv->tx_key].len);
1478
1479 if (keylen > LARGE_KEY_SIZE) {
1480 printk(KERN_ERR "%s: BUG: Key %d has oversize length %d.\n",
1481 priv->ndev->name, priv->tx_key, keylen);
1482 return -E2BIG;
1483 }
1484
1485 /* Write all 4 keys */
1486 for(i = 0; i < ORINOCO_MAX_KEYS; i++) {
1487 err = hermes_write_ltv(hw, USER_BAP,
1488 HERMES_RID_CNFDEFAULTKEY0 + i,
1489 HERMES_BYTES_TO_RECLEN(keylen),
1490 priv->keys[i].data);
1491 if (err)
1492 return err;
1493 }
1494
1495 /* Write the index of the key used in transmission */
1496 err = hermes_write_wordrec(hw, USER_BAP,
1497 HERMES_RID_CNFWEPDEFAULTKEYID,
1498 priv->tx_key);
1499 if (err)
1500 return err;
1501 }
1502 break;
1503 }
1504
1505 return 0;
1506 }
1507
1508 static int __orinoco_hw_setup_wep(struct orinoco_private *priv)
1509 {
1510 hermes_t *hw = &priv->hw;
1511 int err = 0;
1512 int master_wep_flag;
1513 int auth_flag;
1514
1515 if (priv->wep_on)
1516 __orinoco_hw_setup_wepkeys(priv);
1517
1518 if (priv->wep_restrict)
1519 auth_flag = HERMES_AUTH_SHARED_KEY;
1520 else
1521 auth_flag = HERMES_AUTH_OPEN;
1522
1523 switch (priv->firmware_type) {
1524 case FIRMWARE_TYPE_AGERE: /* Agere style WEP */
1525 if (priv->wep_on) {
1526 /* Enable the shared-key authentication. */
1527 err = hermes_write_wordrec(hw, USER_BAP,
1528 HERMES_RID_CNFAUTHENTICATION_AGERE,
1529 auth_flag);
1530 }
1531 err = hermes_write_wordrec(hw, USER_BAP,
1532 HERMES_RID_CNFWEPENABLED_AGERE,
1533 priv->wep_on);
1534 if (err)
1535 return err;
1536 break;
1537
1538 case FIRMWARE_TYPE_INTERSIL: /* Intersil style WEP */
1539 case FIRMWARE_TYPE_SYMBOL: /* Symbol style WEP */
1540 if (priv->wep_on) {
1541 if (priv->wep_restrict ||
1542 (priv->firmware_type == FIRMWARE_TYPE_SYMBOL))
1543 master_wep_flag = HERMES_WEP_PRIVACY_INVOKED |
1544 HERMES_WEP_EXCL_UNENCRYPTED;
1545 else
1546 master_wep_flag = HERMES_WEP_PRIVACY_INVOKED;
1547
1548 err = hermes_write_wordrec(hw, USER_BAP,
1549 HERMES_RID_CNFAUTHENTICATION,
1550 auth_flag);
1551 if (err)
1552 return err;
1553 } else
1554 master_wep_flag = 0;
1555
1556 if (priv->iw_mode == IW_MODE_MONITOR)
1557 master_wep_flag |= HERMES_WEP_HOST_DECRYPT;
1558
1559 /* Master WEP setting : on/off */
1560 err = hermes_write_wordrec(hw, USER_BAP,
1561 HERMES_RID_CNFWEPFLAGS_INTERSIL,
1562 master_wep_flag);
1563 if (err)
1564 return err;
1565
1566 break;
1567 }
1568
1569 return 0;
1570 }
1571
1572 static int __orinoco_program_rids(struct net_device *dev)
1573 {
1574 struct orinoco_private *priv = netdev_priv(dev);
1575 hermes_t *hw = &priv->hw;
1576 int err;
1577 struct hermes_idstring idbuf;
1578
1579 /* Set the MAC address */
1580 err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFOWNMACADDR,
1581 HERMES_BYTES_TO_RECLEN(ETH_ALEN), dev->dev_addr);
1582 if (err) {
1583 printk(KERN_ERR "%s: Error %d setting MAC address\n",
1584 dev->name, err);
1585 return err;
1586 }
1587
1588 /* Set up the link mode */
1589 err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFPORTTYPE,
1590 priv->port_type);
1591 if (err) {
1592 printk(KERN_ERR "%s: Error %d setting port type\n",
1593 dev->name, err);
1594 return err;
1595 }
1596 /* Set the channel/frequency */
1597 if (priv->channel != 0 && priv->iw_mode != IW_MODE_INFRA) {
1598 err = hermes_write_wordrec(hw, USER_BAP,
1599 HERMES_RID_CNFOWNCHANNEL,
1600 priv->channel);
1601 if (err) {
1602 printk(KERN_ERR "%s: Error %d setting channel %d\n",
1603 dev->name, err, priv->channel);
1604 return err;
1605 }
1606 }
1607
1608 if (priv->has_ibss) {
1609 u16 createibss;
1610
1611 if ((strlen(priv->desired_essid) == 0) && (priv->createibss)) {
1612 printk(KERN_WARNING "%s: This firmware requires an "
1613 "ESSID in IBSS-Ad-Hoc mode.\n", dev->name);
1614 /* With wvlan_cs, in this case, we would crash.
1615 * hopefully, this driver will behave better...
1616 * Jean II */
1617 createibss = 0;
1618 } else {
1619 createibss = priv->createibss;
1620 }
1621
1622 err = hermes_write_wordrec(hw, USER_BAP,
1623 HERMES_RID_CNFCREATEIBSS,
1624 createibss);
1625 if (err) {
1626 printk(KERN_ERR "%s: Error %d setting CREATEIBSS\n",
1627 dev->name, err);
1628 return err;
1629 }
1630 }
1631
1632 /* Set the desired BSSID */
1633 err = __orinoco_hw_set_wap(priv);
1634 if (err) {
1635 printk(KERN_ERR "%s: Error %d setting AP address\n",
1636 dev->name, err);
1637 return err;
1638 }
1639 /* Set the desired ESSID */
1640 idbuf.len = cpu_to_le16(strlen(priv->desired_essid));
1641 memcpy(&idbuf.val, priv->desired_essid, sizeof(idbuf.val));
1642 /* WinXP wants partner to configure OWNSSID even in IBSS mode. (jimc) */
1643 err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFOWNSSID,
1644 HERMES_BYTES_TO_RECLEN(strlen(priv->desired_essid)+2),
1645 &idbuf);
1646 if (err) {
1647 printk(KERN_ERR "%s: Error %d setting OWNSSID\n",
1648 dev->name, err);
1649 return err;
1650 }
1651 err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFDESIREDSSID,
1652 HERMES_BYTES_TO_RECLEN(strlen(priv->desired_essid)+2),
1653 &idbuf);
1654 if (err) {
1655 printk(KERN_ERR "%s: Error %d setting DESIREDSSID\n",
1656 dev->name, err);
1657 return err;
1658 }
1659
1660 /* Set the station name */
1661 idbuf.len = cpu_to_le16(strlen(priv->nick));
1662 memcpy(&idbuf.val, priv->nick, sizeof(idbuf.val));
1663 err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFOWNNAME,
1664 HERMES_BYTES_TO_RECLEN(strlen(priv->nick)+2),
1665 &idbuf);
1666 if (err) {
1667 printk(KERN_ERR "%s: Error %d setting nickname\n",
1668 dev->name, err);
1669 return err;
1670 }
1671
1672 /* Set AP density */
1673 if (priv->has_sensitivity) {
1674 err = hermes_write_wordrec(hw, USER_BAP,
1675 HERMES_RID_CNFSYSTEMSCALE,
1676 priv->ap_density);
1677 if (err) {
1678 printk(KERN_WARNING "%s: Error %d setting SYSTEMSCALE. "
1679 "Disabling sensitivity control\n",
1680 dev->name, err);
1681
1682 priv->has_sensitivity = 0;
1683 }
1684 }
1685
1686 /* Set RTS threshold */
1687 err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFRTSTHRESHOLD,
1688 priv->rts_thresh);
1689 if (err) {
1690 printk(KERN_ERR "%s: Error %d setting RTS threshold\n",
1691 dev->name, err);
1692 return err;
1693 }
1694
1695 /* Set fragmentation threshold or MWO robustness */
1696 if (priv->has_mwo)
1697 err = hermes_write_wordrec(hw, USER_BAP,
1698 HERMES_RID_CNFMWOROBUST_AGERE,
1699 priv->mwo_robust);
1700 else
1701 err = hermes_write_wordrec(hw, USER_BAP,
1702 HERMES_RID_CNFFRAGMENTATIONTHRESHOLD,
1703 priv->frag_thresh);
1704 if (err) {
1705 printk(KERN_ERR "%s: Error %d setting fragmentation\n",
1706 dev->name, err);
1707 return err;
1708 }
1709
1710 /* Set bitrate */
1711 err = __orinoco_hw_set_bitrate(priv);
1712 if (err) {
1713 printk(KERN_ERR "%s: Error %d setting bitrate\n",
1714 dev->name, err);
1715 return err;
1716 }
1717
1718 /* Set power management */
1719 if (priv->has_pm) {
1720 err = hermes_write_wordrec(hw, USER_BAP,
1721 HERMES_RID_CNFPMENABLED,
1722 priv->pm_on);
1723 if (err) {
1724 printk(KERN_ERR "%s: Error %d setting up PM\n",
1725 dev->name, err);
1726 return err;
1727 }
1728
1729 err = hermes_write_wordrec(hw, USER_BAP,
1730 HERMES_RID_CNFMULTICASTRECEIVE,
1731 priv->pm_mcast);
1732 if (err) {
1733 printk(KERN_ERR "%s: Error %d setting up PM\n",
1734 dev->name, err);
1735 return err;
1736 }
1737 err = hermes_write_wordrec(hw, USER_BAP,
1738 HERMES_RID_CNFMAXSLEEPDURATION,
1739 priv->pm_period);
1740 if (err) {
1741 printk(KERN_ERR "%s: Error %d setting up PM\n",
1742 dev->name, err);
1743 return err;
1744 }
1745 err = hermes_write_wordrec(hw, USER_BAP,
1746 HERMES_RID_CNFPMHOLDOVERDURATION,
1747 priv->pm_timeout);
1748 if (err) {
1749 printk(KERN_ERR "%s: Error %d setting up PM\n",
1750 dev->name, err);
1751 return err;
1752 }
1753 }
1754
1755 /* Set preamble - only for Symbol so far... */
1756 if (priv->has_preamble) {
1757 err = hermes_write_wordrec(hw, USER_BAP,
1758 HERMES_RID_CNFPREAMBLE_SYMBOL,
1759 priv->preamble);
1760 if (err) {
1761 printk(KERN_ERR "%s: Error %d setting preamble\n",
1762 dev->name, err);
1763 return err;
1764 }
1765 }
1766
1767 /* Set up encryption */
1768 if (priv->has_wep) {
1769 err = __orinoco_hw_setup_wep(priv);
1770 if (err) {
1771 printk(KERN_ERR "%s: Error %d activating WEP\n",
1772 dev->name, err);
1773 return err;
1774 }
1775 }
1776
1777 if (priv->iw_mode == IW_MODE_MONITOR) {
1778 /* Enable monitor mode */
1779 dev->type = ARPHRD_IEEE80211;
1780 err = hermes_docmd_wait(hw, HERMES_CMD_TEST |
1781 HERMES_TEST_MONITOR, 0, NULL);
1782 } else {
1783 /* Disable monitor mode */
1784 dev->type = ARPHRD_ETHER;
1785 err = hermes_docmd_wait(hw, HERMES_CMD_TEST |
1786 HERMES_TEST_STOP, 0, NULL);
1787 }
1788 if (err)
1789 return err;
1790
1791 /* Set promiscuity / multicast*/
1792 priv->promiscuous = 0;
1793 priv->mc_count = 0;
1794
1795 /* FIXME: what about netif_tx_lock */
1796 __orinoco_set_multicast_list(dev);
1797
1798 return 0;
1799 }
1800
1801 /* FIXME: return int? */
1802 static void
1803 __orinoco_set_multicast_list(struct net_device *dev)
1804 {
1805 struct orinoco_private *priv = netdev_priv(dev);
1806 hermes_t *hw = &priv->hw;
1807 int err = 0;
1808 int promisc, mc_count;
1809
1810 /* The Hermes doesn't seem to have an allmulti mode, so we go
1811 * into promiscuous mode and let the upper levels deal. */
1812 if ( (dev->flags & IFF_PROMISC) || (dev->flags & IFF_ALLMULTI) ||
1813 (dev->mc_count > MAX_MULTICAST(priv)) ) {
1814 promisc = 1;
1815 mc_count = 0;
1816 } else {
1817 promisc = 0;
1818 mc_count = dev->mc_count;
1819 }
1820
1821 if (promisc != priv->promiscuous) {
1822 err = hermes_write_wordrec(hw, USER_BAP,
1823 HERMES_RID_CNFPROMISCUOUSMODE,
1824 promisc);
1825 if (err) {
1826 printk(KERN_ERR "%s: Error %d setting PROMISCUOUSMODE to 1.\n",
1827 dev->name, err);
1828 } else
1829 priv->promiscuous = promisc;
1830 }
1831
1832 if (! promisc && (mc_count || priv->mc_count) ) {
1833 struct dev_mc_list *p = dev->mc_list;
1834 struct hermes_multicast mclist;
1835 int i;
1836
1837 for (i = 0; i < mc_count; i++) {
1838 /* paranoia: is list shorter than mc_count? */
1839 BUG_ON(! p);
1840 /* paranoia: bad address size in list? */
1841 BUG_ON(p->dmi_addrlen != ETH_ALEN);
1842
1843 memcpy(mclist.addr[i], p->dmi_addr, ETH_ALEN);
1844 p = p->next;
1845 }
1846
1847 if (p)
1848 printk(KERN_WARNING "%s: Multicast list is "
1849 "longer than mc_count\n", dev->name);
1850
1851 err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFGROUPADDRESSES,
1852 HERMES_BYTES_TO_RECLEN(priv->mc_count * ETH_ALEN),
1853 &mclist);
1854 if (err)
1855 printk(KERN_ERR "%s: Error %d setting multicast list.\n",
1856 dev->name, err);
1857 else
1858 priv->mc_count = mc_count;
1859 }
1860
1861 /* Since we can set the promiscuous flag when it wasn't asked
1862 for, make sure the net_device knows about it. */
1863 if (priv->promiscuous)
1864 dev->flags |= IFF_PROMISC;
1865 else
1866 dev->flags &= ~IFF_PROMISC;
1867 }
1868
1869 /* This must be called from user context, without locks held - use
1870 * schedule_work() */
1871 static void orinoco_reset(struct work_struct *work)
1872 {
1873 struct orinoco_private *priv =
1874 container_of(work, struct orinoco_private, reset_work);
1875 struct net_device *dev = priv->ndev;
1876 struct hermes *hw = &priv->hw;
1877 int err;
1878 unsigned long flags;
1879
1880 if (orinoco_lock(priv, &flags) != 0)
1881 /* When the hardware becomes available again, whatever
1882 * detects that is responsible for re-initializing
1883 * it. So no need for anything further */
1884 return;
1885
1886 netif_stop_queue(dev);
1887
1888 /* Shut off interrupts. Depending on what state the hardware
1889 * is in, this might not work, but we'll try anyway */
1890 hermes_set_irqmask(hw, 0);
1891 hermes_write_regn(hw, EVACK, 0xffff);
1892
1893 priv->hw_unavailable++;
1894 priv->last_linkstatus = 0xffff; /* firmware will have to reassociate */
1895 netif_carrier_off(dev);
1896
1897 orinoco_unlock(priv, &flags);
1898
1899 /* Scanning support: Cleanup of driver struct */
1900 kfree(priv->scan_result);
1901 priv->scan_result = NULL;
1902 priv->scan_inprogress = 0;
1903
1904 if (priv->hard_reset) {
1905 err = (*priv->hard_reset)(priv);
1906 if (err) {
1907 printk(KERN_ERR "%s: orinoco_reset: Error %d "
1908 "performing hard reset\n", dev->name, err);
1909 goto disable;
1910 }
1911 }
1912
1913 err = orinoco_reinit_firmware(dev);
1914 if (err) {
1915 printk(KERN_ERR "%s: orinoco_reset: Error %d re-initializing firmware\n",
1916 dev->name, err);
1917 goto disable;
1918 }
1919
1920 spin_lock_irq(&priv->lock); /* This has to be called from user context */
1921
1922 priv->hw_unavailable--;
1923
1924 /* priv->open or priv->hw_unavailable might have changed while
1925 * we dropped the lock */
1926 if (priv->open && (! priv->hw_unavailable)) {
1927 err = __orinoco_up(dev);
1928 if (err) {
1929 printk(KERN_ERR "%s: orinoco_reset: Error %d reenabling card\n",
1930 dev->name, err);
1931 } else
1932 dev->trans_start = jiffies;
1933 }
1934
1935 spin_unlock_irq(&priv->lock);
1936
1937 return;
1938 disable:
1939 hermes_set_irqmask(hw, 0);
1940 netif_device_detach(dev);
1941 printk(KERN_ERR "%s: Device has been disabled!\n", dev->name);
1942 }
1943
1944 /********************************************************************/
1945 /* Interrupt handler */
1946 /********************************************************************/
1947
1948 static void __orinoco_ev_tick(struct net_device *dev, hermes_t *hw)
1949 {
1950 printk(KERN_DEBUG "%s: TICK\n", dev->name);
1951 }
1952
1953 static void __orinoco_ev_wterr(struct net_device *dev, hermes_t *hw)
1954 {
1955 /* This seems to happen a fair bit under load, but ignoring it
1956 seems to work fine...*/
1957 printk(KERN_DEBUG "%s: MAC controller error (WTERR). Ignoring.\n",
1958 dev->name);
1959 }
1960
1961 irqreturn_t orinoco_interrupt(int irq, void *dev_id)
1962 {
1963 struct net_device *dev = dev_id;
1964 struct orinoco_private *priv = netdev_priv(dev);
1965 hermes_t *hw = &priv->hw;
1966 int count = MAX_IRQLOOPS_PER_IRQ;
1967 u16 evstat, events;
1968 /* These are used to detect a runaway interrupt situation */
1969 /* If we get more than MAX_IRQLOOPS_PER_JIFFY iterations in a jiffy,
1970 * we panic and shut down the hardware */
1971 static int last_irq_jiffy = 0; /* jiffies value the last time
1972 * we were called */
1973 static int loops_this_jiffy = 0;
1974 unsigned long flags;
1975
1976 if (orinoco_lock(priv, &flags) != 0) {
1977 /* If hw is unavailable - we don't know if the irq was
1978 * for us or not */
1979 return IRQ_HANDLED;
1980 }
1981
1982 evstat = hermes_read_regn(hw, EVSTAT);
1983 events = evstat & hw->inten;
1984 if (! events) {
1985 orinoco_unlock(priv, &flags);
1986 return IRQ_NONE;
1987 }
1988
1989 if (jiffies != last_irq_jiffy)
1990 loops_this_jiffy = 0;
1991 last_irq_jiffy = jiffies;
1992
1993 while (events && count--) {
1994 if (++loops_this_jiffy > MAX_IRQLOOPS_PER_JIFFY) {
1995 printk(KERN_WARNING "%s: IRQ handler is looping too "
1996 "much! Resetting.\n", dev->name);
1997 /* Disable interrupts for now */
1998 hermes_set_irqmask(hw, 0);
1999 schedule_work(&priv->reset_work);
2000 break;
2001 }
2002
2003 /* Check the card hasn't been removed */
2004 if (! hermes_present(hw)) {
2005 DEBUG(0, "orinoco_interrupt(): card removed\n");
2006 break;
2007 }
2008
2009 if (events & HERMES_EV_TICK)
2010 __orinoco_ev_tick(dev, hw);
2011 if (events & HERMES_EV_WTERR)
2012 __orinoco_ev_wterr(dev, hw);
2013 if (events & HERMES_EV_INFDROP)
2014 __orinoco_ev_infdrop(dev, hw);
2015 if (events & HERMES_EV_INFO)
2016 __orinoco_ev_info(dev, hw);
2017 if (events & HERMES_EV_RX)
2018 __orinoco_ev_rx(dev, hw);
2019 if (events & HERMES_EV_TXEXC)
2020 __orinoco_ev_txexc(dev, hw);
2021 if (events & HERMES_EV_TX)
2022 __orinoco_ev_tx(dev, hw);
2023 if (events & HERMES_EV_ALLOC)
2024 __orinoco_ev_alloc(dev, hw);
2025
2026 hermes_write_regn(hw, EVACK, evstat);
2027
2028 evstat = hermes_read_regn(hw, EVSTAT);
2029 events = evstat & hw->inten;
2030 };
2031
2032 orinoco_unlock(priv, &flags);
2033 return IRQ_HANDLED;
2034 }
2035
2036 /********************************************************************/
2037 /* Initialization */
2038 /********************************************************************/
2039
2040 struct comp_id {
2041 u16 id, variant, major, minor;
2042 } __attribute__ ((packed));
2043
2044 static inline fwtype_t determine_firmware_type(struct comp_id *nic_id)
2045 {
2046 if (nic_id->id < 0x8000)
2047 return FIRMWARE_TYPE_AGERE;
2048 else if (nic_id->id == 0x8000 && nic_id->major == 0)
2049 return FIRMWARE_TYPE_SYMBOL;
2050 else
2051 return FIRMWARE_TYPE_INTERSIL;
2052 }
2053
2054 /* Set priv->firmware type, determine firmware properties */
2055 static int determine_firmware(struct net_device *dev)
2056 {
2057 struct orinoco_private *priv = netdev_priv(dev);
2058 hermes_t *hw = &priv->hw;
2059 int err;
2060 struct comp_id nic_id, sta_id;
2061 unsigned int firmver;
2062 char tmp[SYMBOL_MAX_VER_LEN+1];
2063
2064 /* Get the hardware version */
2065 err = HERMES_READ_RECORD(hw, USER_BAP, HERMES_RID_NICID, &nic_id);
2066 if (err) {
2067 printk(KERN_ERR "%s: Cannot read hardware identity: error %d\n",
2068 dev->name, err);
2069 return err;
2070 }
2071
2072 le16_to_cpus(&nic_id.id);
2073 le16_to_cpus(&nic_id.variant);
2074 le16_to_cpus(&nic_id.major);
2075 le16_to_cpus(&nic_id.minor);
2076 printk(KERN_DEBUG "%s: Hardware identity %04x:%04x:%04x:%04x\n",
2077 dev->name, nic_id.id, nic_id.variant,
2078 nic_id.major, nic_id.minor);
2079
2080 priv->firmware_type = determine_firmware_type(&nic_id);
2081
2082 /* Get the firmware version */
2083 err = HERMES_READ_RECORD(hw, USER_BAP, HERMES_RID_STAID, &sta_id);
2084 if (err) {
2085 printk(KERN_ERR "%s: Cannot read station identity: error %d\n",
2086 dev->name, err);
2087 return err;
2088 }
2089
2090 le16_to_cpus(&sta_id.id);
2091 le16_to_cpus(&sta_id.variant);
2092 le16_to_cpus(&sta_id.major);
2093 le16_to_cpus(&sta_id.minor);
2094 printk(KERN_DEBUG "%s: Station identity %04x:%04x:%04x:%04x\n",
2095 dev->name, sta_id.id, sta_id.variant,
2096 sta_id.major, sta_id.minor);
2097
2098 switch (sta_id.id) {
2099 case 0x15:
2100 printk(KERN_ERR "%s: Primary firmware is active\n",
2101 dev->name);
2102 return -ENODEV;
2103 case 0x14b:
2104 printk(KERN_ERR "%s: Tertiary firmware is active\n",
2105 dev->name);
2106 return -ENODEV;
2107 case 0x1f: /* Intersil, Agere, Symbol Spectrum24 */
2108 case 0x21: /* Symbol Spectrum24 Trilogy */
2109 break;
2110 default:
2111 printk(KERN_NOTICE "%s: Unknown station ID, please report\n",
2112 dev->name);
2113 break;
2114 }
2115
2116 /* Default capabilities */
2117 priv->has_sensitivity = 1;
2118 priv->has_mwo = 0;
2119 priv->has_preamble = 0;
2120 priv->has_port3 = 1;
2121 priv->has_ibss = 1;
2122 priv->has_wep = 0;
2123 priv->has_big_wep = 0;
2124
2125 /* Determine capabilities from the firmware version */
2126 switch (priv->firmware_type) {
2127 case FIRMWARE_TYPE_AGERE:
2128 /* Lucent Wavelan IEEE, Lucent Orinoco, Cabletron RoamAbout,
2129 ELSA, Melco, HP, IBM, Dell 1150, Compaq 110/210 */
2130 snprintf(priv->fw_name, sizeof(priv->fw_name) - 1,
2131 "Lucent/Agere %d.%02d", sta_id.major, sta_id.minor);
2132
2133 firmver = ((unsigned long)sta_id.major << 16) | sta_id.minor;
2134
2135 priv->has_ibss = (firmver >= 0x60006);
2136 priv->has_wep = (firmver >= 0x40020);
2137 priv->has_big_wep = 1; /* FIXME: this is wrong - how do we tell
2138 Gold cards from the others? */
2139 priv->has_mwo = (firmver >= 0x60000);
2140 priv->has_pm = (firmver >= 0x40020); /* Don't work in 7.52 ? */
2141 priv->ibss_port = 1;
2142 priv->has_hostscan = (firmver >= 0x8000a);
2143 priv->broken_monitor = (firmver >= 0x80000);
2144
2145 /* Tested with Agere firmware :
2146 * 1.16 ; 4.08 ; 4.52 ; 6.04 ; 6.16 ; 7.28 => Jean II
2147 * Tested CableTron firmware : 4.32 => Anton */
2148 break;
2149 case FIRMWARE_TYPE_SYMBOL:
2150 /* Symbol , 3Com AirConnect, Intel, Ericsson WLAN */
2151 /* Intel MAC : 00:02:B3:* */
2152 /* 3Com MAC : 00:50:DA:* */
2153 memset(tmp, 0, sizeof(tmp));
2154 /* Get the Symbol firmware version */
2155 err = hermes_read_ltv(hw, USER_BAP,
2156 HERMES_RID_SECONDARYVERSION_SYMBOL,
2157 SYMBOL_MAX_VER_LEN, NULL, &tmp);
2158 if (err) {
2159 printk(KERN_WARNING
2160 "%s: Error %d reading Symbol firmware info. Wildly guessing capabilities...\n",
2161 dev->name, err);
2162 firmver = 0;
2163 tmp[0] = '\0';
2164 } else {
2165 /* The firmware revision is a string, the format is
2166 * something like : "V2.20-01".
2167 * Quick and dirty parsing... - Jean II
2168 */
2169 firmver = ((tmp[1] - '0') << 16) | ((tmp[3] - '0') << 12)
2170 | ((tmp[4] - '0') << 8) | ((tmp[6] - '0') << 4)
2171 | (tmp[7] - '0');
2172
2173 tmp[SYMBOL_MAX_VER_LEN] = '\0';
2174 }
2175
2176 snprintf(priv->fw_name, sizeof(priv->fw_name) - 1,
2177 "Symbol %s", tmp);
2178
2179 priv->has_ibss = (firmver >= 0x20000);
2180 priv->has_wep = (firmver >= 0x15012);
2181 priv->has_big_wep = (firmver >= 0x20000);
2182 priv->has_pm = (firmver >= 0x20000 && firmver < 0x22000) ||
2183 (firmver >= 0x29000 && firmver < 0x30000) ||
2184 firmver >= 0x31000;
2185 priv->has_preamble = (firmver >= 0x20000);
2186 priv->ibss_port = 4;
2187 priv->broken_disableport = (firmver == 0x25013) ||
2188 (firmver >= 0x30000 && firmver <= 0x31000);
2189 priv->has_hostscan = (firmver >= 0x31001) ||
2190 (firmver >= 0x29057 && firmver < 0x30000);
2191 /* Tested with Intel firmware : 0x20015 => Jean II */
2192 /* Tested with 3Com firmware : 0x15012 & 0x22001 => Jean II */
2193 break;
2194 case FIRMWARE_TYPE_INTERSIL:
2195 /* D-Link, Linksys, Adtron, ZoomAir, and many others...
2196 * Samsung, Compaq 100/200 and Proxim are slightly
2197 * different and less well tested */
2198 /* D-Link MAC : 00:40:05:* */
2199 /* Addtron MAC : 00:90:D1:* */
2200 snprintf(priv->fw_name, sizeof(priv->fw_name) - 1,
2201 "Intersil %d.%d.%d", sta_id.major, sta_id.minor,
2202 sta_id.variant);
2203
2204 firmver = ((unsigned long)sta_id.major << 16) |
2205 ((unsigned long)sta_id.minor << 8) | sta_id.variant;
2206
2207 priv->has_ibss = (firmver >= 0x000700); /* FIXME */
2208 priv->has_big_wep = priv->has_wep = (firmver >= 0x000800);
2209 priv->has_pm = (firmver >= 0x000700);
2210 priv->has_hostscan = (firmver >= 0x010301);
2211
2212 if (firmver >= 0x000800)
2213 priv->ibss_port = 0;
2214 else {
2215 printk(KERN_NOTICE "%s: Intersil firmware earlier "
2216 "than v0.8.x - several features not supported\n",
2217 dev->name);
2218 priv->ibss_port = 1;
2219 }
2220 break;
2221 }
2222 printk(KERN_DEBUG "%s: Firmware determined as %s\n", dev->name,
2223 priv->fw_name);
2224
2225 return 0;
2226 }
2227
2228 static int orinoco_init(struct net_device *dev)
2229 {
2230 struct orinoco_private *priv = netdev_priv(dev);
2231 hermes_t *hw = &priv->hw;
2232 int err = 0;
2233 struct hermes_idstring nickbuf;
2234 u16 reclen;
2235 int len;
2236
2237 /* No need to lock, the hw_unavailable flag is already set in
2238 * alloc_orinocodev() */
2239 priv->nicbuf_size = IEEE80211_FRAME_LEN + ETH_HLEN;
2240
2241 /* Initialize the firmware */
2242 err = hermes_init(hw);
2243 if (err != 0) {
2244 printk(KERN_ERR "%s: failed to initialize firmware (err = %d)\n",
2245 dev->name, err);
2246 goto out;
2247 }
2248
2249 err = determine_firmware(dev);
2250 if (err != 0) {
2251 printk(KERN_ERR "%s: Incompatible firmware, aborting\n",
2252 dev->name);
2253 goto out;
2254 }
2255
2256 if (priv->has_port3)
2257 printk(KERN_DEBUG "%s: Ad-hoc demo mode supported\n", dev->name);
2258 if (priv->has_ibss)
2259 printk(KERN_DEBUG "%s: IEEE standard IBSS ad-hoc mode supported\n",
2260 dev->name);
2261 if (priv->has_wep) {
2262 printk(KERN_DEBUG "%s: WEP supported, ", dev->name);
2263 if (priv->has_big_wep)
2264 printk("104-bit key\n");
2265 else
2266 printk("40-bit key\n");
2267 }
2268
2269 /* Get the MAC address */
2270 err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CNFOWNMACADDR,
2271 ETH_ALEN, NULL, dev->dev_addr);
2272 if (err) {
2273 printk(KERN_WARNING "%s: failed to read MAC address!\n",
2274 dev->name);
2275 goto out;
2276 }
2277
2278 printk(KERN_DEBUG "%s: MAC address %02X:%02X:%02X:%02X:%02X:%02X\n",
2279 dev->name, dev->dev_addr[0], dev->dev_addr[1],
2280 dev->dev_addr[2], dev->dev_addr[3], dev->dev_addr[4],
2281 dev->dev_addr[5]);
2282
2283 /* Get the station name */
2284 err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CNFOWNNAME,
2285 sizeof(nickbuf), &reclen, &nickbuf);
2286 if (err) {
2287 printk(KERN_ERR "%s: failed to read station name\n",
2288 dev->name);
2289 goto out;
2290 }
2291 if (nickbuf.len)
2292 len = min(IW_ESSID_MAX_SIZE, (int)le16_to_cpu(nickbuf.len));
2293 else
2294 len = min(IW_ESSID_MAX_SIZE, 2 * reclen);
2295 memcpy(priv->nick, &nickbuf.val, len);
2296 priv->nick[len] = '\0';
2297
2298 printk(KERN_DEBUG "%s: Station name \"%s\"\n", dev->name, priv->nick);
2299
2300 err = orinoco_allocate_fid(dev);
2301 if (err) {
2302 printk(KERN_ERR "%s: failed to allocate NIC buffer!\n",
2303 dev->name);
2304 goto out;
2305 }
2306
2307 /* Get allowed channels */
2308 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CHANNELLIST,
2309 &priv->channel_mask);
2310 if (err) {
2311 printk(KERN_ERR "%s: failed to read channel list!\n",
2312 dev->name);
2313 goto out;
2314 }
2315
2316 /* Get initial AP density */
2317 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFSYSTEMSCALE,
2318 &priv->ap_density);
2319 if (err || priv->ap_density < 1 || priv->ap_density > 3) {
2320 priv->has_sensitivity = 0;
2321 }
2322
2323 /* Get initial RTS threshold */
2324 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFRTSTHRESHOLD,
2325 &priv->rts_thresh);
2326 if (err) {
2327 printk(KERN_ERR "%s: failed to read RTS threshold!\n",
2328 dev->name);
2329 goto out;
2330 }
2331
2332 /* Get initial fragmentation settings */
2333 if (priv->has_mwo)
2334 err = hermes_read_wordrec(hw, USER_BAP,
2335 HERMES_RID_CNFMWOROBUST_AGERE,
2336 &priv->mwo_robust);
2337 else
2338 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFFRAGMENTATIONTHRESHOLD,
2339 &priv->frag_thresh);
2340 if (err) {
2341 printk(KERN_ERR "%s: failed to read fragmentation settings!\n",
2342 dev->name);
2343 goto out;
2344 }
2345
2346 /* Power management setup */
2347 if (priv->has_pm) {
2348 priv->pm_on = 0;
2349 priv->pm_mcast = 1;
2350 err = hermes_read_wordrec(hw, USER_BAP,
2351 HERMES_RID_CNFMAXSLEEPDURATION,
2352 &priv->pm_period);
2353 if (err) {
2354 printk(KERN_ERR "%s: failed to read power management period!\n",
2355 dev->name);
2356 goto out;
2357 }
2358 err = hermes_read_wordrec(hw, USER_BAP,
2359 HERMES_RID_CNFPMHOLDOVERDURATION,
2360 &priv->pm_timeout);
2361 if (err) {
2362 printk(KERN_ERR "%s: failed to read power management timeout!\n",
2363 dev->name);
2364 goto out;
2365 }
2366 }
2367
2368 /* Preamble setup */
2369 if (priv->has_preamble) {
2370 err = hermes_read_wordrec(hw, USER_BAP,
2371 HERMES_RID_CNFPREAMBLE_SYMBOL,
2372 &priv->preamble);
2373 if (err)
2374 goto out;
2375 }
2376
2377 /* Set up the default configuration */
2378 priv->iw_mode = IW_MODE_INFRA;
2379 /* By default use IEEE/IBSS ad-hoc mode if we have it */
2380 priv->prefer_port3 = priv->has_port3 && (! priv->has_ibss);
2381 set_port_type(priv);
2382 priv->channel = 0; /* use firmware default */
2383
2384 priv->promiscuous = 0;
2385 priv->wep_on = 0;
2386 priv->tx_key = 0;
2387
2388 /* Make the hardware available, as long as it hasn't been
2389 * removed elsewhere (e.g. by PCMCIA hot unplug) */
2390 spin_lock_irq(&priv->lock);
2391 priv->hw_unavailable--;
2392 spin_unlock_irq(&priv->lock);
2393
2394 printk(KERN_DEBUG "%s: ready\n", dev->name);
2395
2396 out:
2397 return err;
2398 }
2399
2400 struct net_device *alloc_orinocodev(int sizeof_card,
2401 int (*hard_reset)(struct orinoco_private *))
2402 {
2403 struct net_device *dev;
2404 struct orinoco_private *priv;
2405
2406 dev = alloc_etherdev(sizeof(struct orinoco_private) + sizeof_card);
2407 if (! dev)
2408 return NULL;
2409 priv = netdev_priv(dev);
2410 priv->ndev = dev;
2411 if (sizeof_card)
2412 priv->card = (void *)((unsigned long)priv
2413 + sizeof(struct orinoco_private));
2414 else
2415 priv->card = NULL;
2416
2417 /* Setup / override net_device fields */
2418 dev->init = orinoco_init;
2419 dev->hard_start_xmit = orinoco_xmit;
2420 dev->tx_timeout = orinoco_tx_timeout;
2421 dev->watchdog_timeo = HZ; /* 1 second timeout */
2422 dev->get_stats = orinoco_get_stats;
2423 dev->ethtool_ops = &orinoco_ethtool_ops;
2424 dev->wireless_handlers = (struct iw_handler_def *)&orinoco_handler_def;
2425 #ifdef WIRELESS_SPY
2426 priv->wireless_data.spy_data = &priv->spy_data;
2427 dev->wireless_data = &priv->wireless_data;
2428 #endif
2429 dev->change_mtu = orinoco_change_mtu;
2430 dev->set_multicast_list = orinoco_set_multicast_list;
2431 /* we use the default eth_mac_addr for setting the MAC addr */
2432
2433 /* Set up default callbacks */
2434 dev->open = orinoco_open;
2435 dev->stop = orinoco_stop;
2436 priv->hard_reset = hard_reset;
2437
2438 spin_lock_init(&priv->lock);
2439 priv->open = 0;
2440 priv->hw_unavailable = 1; /* orinoco_init() must clear this
2441 * before anything else touches the
2442 * hardware */
2443 INIT_WORK(&priv->reset_work, orinoco_reset);
2444 INIT_WORK(&priv->join_work, orinoco_join_ap);
2445 INIT_WORK(&priv->wevent_work, orinoco_send_wevents);
2446
2447 netif_carrier_off(dev);
2448 priv->last_linkstatus = 0xffff;
2449
2450 return dev;
2451
2452 }
2453
2454 void free_orinocodev(struct net_device *dev)
2455 {
2456 struct orinoco_private *priv = netdev_priv(dev);
2457
2458 kfree(priv->scan_result);
2459 free_netdev(dev);
2460 }
2461
2462 /********************************************************************/
2463 /* Wireless extensions */
2464 /********************************************************************/
2465
2466 /* Return : < 0 -> error code ; >= 0 -> length */
2467 static int orinoco_hw_get_essid(struct orinoco_private *priv, int *active,
2468 char buf[IW_ESSID_MAX_SIZE+1])
2469 {
2470 hermes_t *hw = &priv->hw;
2471 int err = 0;
2472 struct hermes_idstring essidbuf;
2473 char *p = (char *)(&essidbuf.val);
2474 int len;
2475 unsigned long flags;
2476
2477 if (orinoco_lock(priv, &flags) != 0)
2478 return -EBUSY;
2479
2480 if (strlen(priv->desired_essid) > 0) {
2481 /* We read the desired SSID from the hardware rather
2482 than from priv->desired_essid, just in case the
2483 firmware is allowed to change it on us. I'm not
2484 sure about this */
2485 /* My guess is that the OWNSSID should always be whatever
2486 * we set to the card, whereas CURRENT_SSID is the one that
2487 * may change... - Jean II */
2488 u16 rid;
2489
2490 *active = 1;
2491
2492 rid = (priv->port_type == 3) ? HERMES_RID_CNFOWNSSID :
2493 HERMES_RID_CNFDESIREDSSID;
2494
2495 err = hermes_read_ltv(hw, USER_BAP, rid, sizeof(essidbuf),
2496 NULL, &essidbuf);
2497 if (err)
2498 goto fail_unlock;
2499 } else {
2500 *active = 0;
2501
2502 err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CURRENTSSID,
2503 sizeof(essidbuf), NULL, &essidbuf);
2504 if (err)
2505 goto fail_unlock;
2506 }
2507
2508 len = le16_to_cpu(essidbuf.len);
2509 BUG_ON(len > IW_ESSID_MAX_SIZE);
2510
2511 memset(buf, 0, IW_ESSID_MAX_SIZE);
2512 memcpy(buf, p, len);
2513 err = len;
2514
2515 fail_unlock:
2516 orinoco_unlock(priv, &flags);
2517
2518 return err;
2519 }
2520
2521 static long orinoco_hw_get_freq(struct orinoco_private *priv)
2522 {
2523
2524 hermes_t *hw = &priv->hw;
2525 int err = 0;
2526 u16 channel;
2527 long freq = 0;
2528 unsigned long flags;
2529
2530 if (orinoco_lock(priv, &flags) != 0)
2531 return -EBUSY;
2532
2533 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CURRENTCHANNEL, &channel);
2534 if (err)
2535 goto out;
2536
2537 /* Intersil firmware 1.3.5 returns 0 when the interface is down */
2538 if (channel == 0) {
2539 err = -EBUSY;
2540 goto out;
2541 }
2542
2543 if ( (channel < 1) || (channel > NUM_CHANNELS) ) {
2544 printk(KERN_WARNING "%s: Channel out of range (%d)!\n",
2545 priv->ndev->name, channel);
2546 err = -EBUSY;
2547 goto out;
2548
2549 }
2550 freq = channel_frequency[channel-1] * 100000;
2551
2552 out:
2553 orinoco_unlock(priv, &flags);
2554
2555 if (err > 0)
2556 err = -EBUSY;
2557 return err ? err : freq;
2558 }
2559
2560 static int orinoco_hw_get_bitratelist(struct orinoco_private *priv,
2561 int *numrates, s32 *rates, int max)
2562 {
2563 hermes_t *hw = &priv->hw;
2564 struct hermes_idstring list;
2565 unsigned char *p = (unsigned char *)&list.val;
2566 int err = 0;
2567 int num;
2568 int i;
2569 unsigned long flags;
2570
2571 if (orinoco_lock(priv, &flags) != 0)
2572 return -EBUSY;
2573
2574 err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_SUPPORTEDDATARATES,
2575 sizeof(list), NULL, &list);
2576 orinoco_unlock(priv, &flags);
2577
2578 if (err)
2579 return err;
2580
2581 num = le16_to_cpu(list.len);
2582 *numrates = num;
2583 num = min(num, max);
2584
2585 for (i = 0; i < num; i++) {
2586 rates[i] = (p[i] & 0x7f) * 500000; /* convert to bps */
2587 }
2588
2589 return 0;
2590 }
2591
2592 static int orinoco_ioctl_getname(struct net_device *dev,
2593 struct iw_request_info *info,
2594 char *name,
2595 char *extra)
2596 {
2597 struct orinoco_private *priv = netdev_priv(dev);
2598 int numrates;
2599 int err;
2600
2601 err = orinoco_hw_get_bitratelist(priv, &numrates, NULL, 0);
2602
2603 if (!err && (numrates > 2))
2604 strcpy(name, "IEEE 802.11b");
2605 else
2606 strcpy(name, "IEEE 802.11-DS");
2607
2608 return 0;
2609 }
2610
2611 static int orinoco_ioctl_setwap(struct net_device *dev,
2612 struct iw_request_info *info,
2613 struct sockaddr *ap_addr,
2614 char *extra)
2615 {
2616 struct orinoco_private *priv = netdev_priv(dev);
2617 int err = -EINPROGRESS; /* Call commit handler */
2618 unsigned long flags;
2619 static const u8 off_addr[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
2620 static const u8 any_addr[] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
2621
2622 if (orinoco_lock(priv, &flags) != 0)
2623 return -EBUSY;
2624
2625 /* Enable automatic roaming - no sanity checks are needed */
2626 if (memcmp(&ap_addr->sa_data, off_addr, ETH_ALEN) == 0 ||
2627 memcmp(&ap_addr->sa_data, any_addr, ETH_ALEN) == 0) {
2628 priv->bssid_fixed = 0;
2629 memset(priv->desired_bssid, 0, ETH_ALEN);
2630
2631 /* "off" means keep existing connection */
2632 if (ap_addr->sa_data[0] == 0) {
2633 __orinoco_hw_set_wap(priv);
2634 err = 0;
2635 }
2636 goto out;
2637 }
2638
2639 if (priv->firmware_type == FIRMWARE_TYPE_AGERE) {
2640 printk(KERN_WARNING "%s: Lucent/Agere firmware doesn't "
2641 "support manual roaming\n",
2642 dev->name);
2643 err = -EOPNOTSUPP;
2644 goto out;
2645 }
2646
2647 if (priv->iw_mode != IW_MODE_INFRA) {
2648 printk(KERN_WARNING "%s: Manual roaming supported only in "
2649 "managed mode\n", dev->name);
2650 err = -EOPNOTSUPP;
2651 goto out;
2652 }
2653
2654 /* Intersil firmware hangs without Desired ESSID */
2655 if (priv->firmware_type == FIRMWARE_TYPE_INTERSIL &&
2656 strlen(priv->desired_essid) == 0) {
2657 printk(KERN_WARNING "%s: Desired ESSID must be set for "
2658 "manual roaming\n", dev->name);
2659 err = -EOPNOTSUPP;
2660 goto out;
2661 }
2662
2663 /* Finally, enable manual roaming */
2664 priv->bssid_fixed = 1;
2665 memcpy(priv->desired_bssid, &ap_addr->sa_data, ETH_ALEN);
2666
2667 out:
2668 orinoco_unlock(priv, &flags);
2669 return err;
2670 }
2671
2672 static int orinoco_ioctl_getwap(struct net_device *dev,
2673 struct iw_request_info *info,
2674 struct sockaddr *ap_addr,
2675 char *extra)
2676 {
2677 struct orinoco_private *priv = netdev_priv(dev);
2678
2679 hermes_t *hw = &priv->hw;
2680 int err = 0;
2681 unsigned long flags;
2682
2683 if (orinoco_lock(priv, &flags) != 0)
2684 return -EBUSY;
2685
2686 ap_addr->sa_family = ARPHRD_ETHER;
2687 err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CURRENTBSSID,
2688 ETH_ALEN, NULL, ap_addr->sa_data);
2689
2690 orinoco_unlock(priv, &flags);
2691
2692 return err;
2693 }
2694
2695 static int orinoco_ioctl_setmode(struct net_device *dev,
2696 struct iw_request_info *info,
2697 u32 *mode,
2698 char *extra)
2699 {
2700 struct orinoco_private *priv = netdev_priv(dev);
2701 int err = -EINPROGRESS; /* Call commit handler */
2702 unsigned long flags;
2703
2704 if (priv->iw_mode == *mode)
2705 return 0;
2706
2707 if (orinoco_lock(priv, &flags) != 0)
2708 return -EBUSY;
2709
2710 switch (*mode) {
2711 case IW_MODE_ADHOC:
2712 if (!priv->has_ibss && !priv->has_port3)
2713 err = -EOPNOTSUPP;
2714 break;
2715
2716 case IW_MODE_INFRA:
2717 break;
2718
2719 case IW_MODE_MONITOR:
2720 if (priv->broken_monitor && !force_monitor) {
2721 printk(KERN_WARNING "%s: Monitor mode support is "
2722 "buggy in this firmware, not enabling\n",
2723 dev->name);
2724 err = -EOPNOTSUPP;
2725 }
2726 break;
2727
2728 default:
2729 err = -EOPNOTSUPP;
2730 break;
2731 }
2732
2733 if (err == -EINPROGRESS) {
2734 priv->iw_mode = *mode;
2735 set_port_type(priv);
2736 }
2737
2738 orinoco_unlock(priv, &flags);
2739
2740 return err;
2741 }
2742
2743 static int orinoco_ioctl_getmode(struct net_device *dev,
2744 struct iw_request_info *info,
2745 u32 *mode,
2746 char *extra)
2747 {
2748 struct orinoco_private *priv = netdev_priv(dev);
2749
2750 *mode = priv->iw_mode;
2751 return 0;
2752 }
2753
2754 static int orinoco_ioctl_getiwrange(struct net_device *dev,
2755 struct iw_request_info *info,
2756 struct iw_point *rrq,
2757 char *extra)
2758 {
2759 struct orinoco_private *priv = netdev_priv(dev);
2760 int err = 0;
2761 struct iw_range *range = (struct iw_range *) extra;
2762 int numrates;
2763 int i, k;
2764
2765 rrq->length = sizeof(struct iw_range);
2766 memset(range, 0, sizeof(struct iw_range));
2767
2768 range->we_version_compiled = WIRELESS_EXT;
2769 range->we_version_source = 14;
2770
2771 /* Set available channels/frequencies */
2772 range->num_channels = NUM_CHANNELS;
2773 k = 0;
2774 for (i = 0; i < NUM_CHANNELS; i++) {
2775 if (priv->channel_mask & (1 << i)) {
2776 range->freq[k].i = i + 1;
2777 range->freq[k].m = channel_frequency[i] * 100000;
2778 range->freq[k].e = 1;
2779 k++;
2780 }
2781
2782 if (k >= IW_MAX_FREQUENCIES)
2783 break;
2784 }
2785 range->num_frequency = k;
2786 range->sensitivity = 3;
2787
2788 if (priv->has_wep) {
2789 range->max_encoding_tokens = ORINOCO_MAX_KEYS;
2790 range->encoding_size[0] = SMALL_KEY_SIZE;
2791 range->num_encoding_sizes = 1;
2792
2793 if (priv->has_big_wep) {
2794 range->encoding_size[1] = LARGE_KEY_SIZE;
2795 range->num_encoding_sizes = 2;
2796 }
2797 }
2798
2799 if ((priv->iw_mode == IW_MODE_ADHOC) && (!SPY_NUMBER(priv))){
2800 /* Quality stats meaningless in ad-hoc mode */
2801 } else {
2802 range->max_qual.qual = 0x8b - 0x2f;
2803 range->max_qual.level = 0x2f - 0x95 - 1;
2804 range->max_qual.noise = 0x2f - 0x95 - 1;
2805 /* Need to get better values */
2806 range->avg_qual.qual = 0x24;
2807 range->avg_qual.level = 0xC2;
2808 range->avg_qual.noise = 0x9E;
2809 }
2810
2811 err = orinoco_hw_get_bitratelist(priv, &numrates,
2812 range->bitrate, IW_MAX_BITRATES);
2813 if (err)
2814 return err;
2815 range->num_bitrates = numrates;
2816
2817 /* Set an indication of the max TCP throughput in bit/s that we can
2818 * expect using this interface. May be use for QoS stuff...
2819 * Jean II */
2820 if (numrates > 2)
2821 range->throughput = 5 * 1000 * 1000; /* ~5 Mb/s */
2822 else
2823 range->throughput = 1.5 * 1000 * 1000; /* ~1.5 Mb/s */
2824
2825 range->min_rts = 0;
2826 range->max_rts = 2347;
2827 range->min_frag = 256;
2828 range->max_frag = 2346;
2829
2830 range->min_pmp = 0;
2831 range->max_pmp = 65535000;
2832 range->min_pmt = 0;
2833 range->max_pmt = 65535 * 1000; /* ??? */
2834 range->pmp_flags = IW_POWER_PERIOD;
2835 range->pmt_flags = IW_POWER_TIMEOUT;
2836 range->pm_capa = IW_POWER_PERIOD | IW_POWER_TIMEOUT | IW_POWER_UNICAST_R;
2837
2838 range->retry_capa = IW_RETRY_LIMIT | IW_RETRY_LIFETIME;
2839 range->retry_flags = IW_RETRY_LIMIT;
2840 range->r_time_flags = IW_RETRY_LIFETIME;
2841 range->min_retry = 0;
2842 range->max_retry = 65535; /* ??? */
2843 range->min_r_time = 0;
2844 range->max_r_time = 65535 * 1000; /* ??? */
2845
2846 /* Event capability (kernel) */
2847 IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
2848 /* Event capability (driver) */
2849 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWTHRSPY);
2850 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
2851 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
2852 IW_EVENT_CAPA_SET(range->event_capa, IWEVTXDROP);
2853
2854 return 0;
2855 }
2856
2857 static int orinoco_ioctl_setiwencode(struct net_device *dev,
2858 struct iw_request_info *info,
2859 struct iw_point *erq,
2860 char *keybuf)
2861 {
2862 struct orinoco_private *priv = netdev_priv(dev);
2863 int index = (erq->flags & IW_ENCODE_INDEX) - 1;
2864 int setindex = priv->tx_key;
2865 int enable = priv->wep_on;
2866 int restricted = priv->wep_restrict;
2867 u16 xlen = 0;
2868 int err = -EINPROGRESS; /* Call commit handler */
2869 unsigned long flags;
2870
2871 if (! priv->has_wep)
2872 return -EOPNOTSUPP;
2873
2874 if (erq->pointer) {
2875 /* We actually have a key to set - check its length */
2876 if (erq->length > LARGE_KEY_SIZE)
2877 return -E2BIG;
2878
2879 if ( (erq->length > SMALL_KEY_SIZE) && !priv->has_big_wep )
2880 return -E2BIG;
2881 }
2882
2883 if (orinoco_lock(priv, &flags) != 0)
2884 return -EBUSY;
2885
2886 if (erq->length > 0) {
2887 if ((index < 0) || (index >= ORINOCO_MAX_KEYS))
2888 index = priv->tx_key;
2889
2890 /* Adjust key length to a supported value */
2891 if (erq->length > SMALL_KEY_SIZE) {
2892 xlen = LARGE_KEY_SIZE;
2893 } else if (erq->length > 0) {
2894 xlen = SMALL_KEY_SIZE;
2895 } else
2896 xlen = 0;
2897
2898 /* Switch on WEP if off */
2899 if ((!enable) && (xlen > 0)) {
2900 setindex = index;
2901 enable = 1;
2902 }
2903 } else {
2904 /* Important note : if the user do "iwconfig eth0 enc off",
2905 * we will arrive there with an index of -1. This is valid
2906 * but need to be taken care off... Jean II */
2907 if ((index < 0) || (index >= ORINOCO_MAX_KEYS)) {
2908 if((index != -1) || (erq->flags == 0)) {
2909 err = -EINVAL;
2910 goto out;
2911 }
2912 } else {
2913 /* Set the index : Check that the key is valid */
2914 if(priv->keys[index].len == 0) {
2915 err = -EINVAL;
2916 goto out;
2917 }
2918 setindex = index;
2919 }
2920 }
2921
2922 if (erq->flags & IW_ENCODE_DISABLED)
2923 enable = 0;
2924 if (erq->flags & IW_ENCODE_OPEN)
2925 restricted = 0;
2926 if (erq->flags & IW_ENCODE_RESTRICTED)
2927 restricted = 1;
2928
2929 if (erq->pointer && erq->length > 0) {
2930 priv->keys[index].len = cpu_to_le16(xlen);
2931 memset(priv->keys[index].data, 0,
2932 sizeof(priv->keys[index].data));
2933 memcpy(priv->keys[index].data, keybuf, erq->length);
2934 }
2935 priv->tx_key = setindex;
2936
2937 /* Try fast key change if connected and only keys are changed */
2938 if (priv->wep_on && enable && (priv->wep_restrict == restricted) &&
2939 netif_carrier_ok(dev)) {
2940 err = __orinoco_hw_setup_wepkeys(priv);
2941 /* No need to commit if successful */
2942 goto out;
2943 }
2944
2945 priv->wep_on = enable;
2946 priv->wep_restrict = restricted;
2947
2948 out:
2949 orinoco_unlock(priv, &flags);
2950
2951 return err;
2952 }
2953
2954 static int orinoco_ioctl_getiwencode(struct net_device *dev,
2955 struct iw_request_info *info,
2956 struct iw_point *erq,
2957 char *keybuf)
2958 {
2959 struct orinoco_private *priv = netdev_priv(dev);
2960 int index = (erq->flags & IW_ENCODE_INDEX) - 1;
2961 u16 xlen = 0;
2962 unsigned long flags;
2963
2964 if (! priv->has_wep)
2965 return -EOPNOTSUPP;
2966
2967 if (orinoco_lock(priv, &flags) != 0)
2968 return -EBUSY;
2969
2970 if ((index < 0) || (index >= ORINOCO_MAX_KEYS))
2971 index = priv->tx_key;
2972
2973 erq->flags = 0;
2974 if (! priv->wep_on)
2975 erq->flags |= IW_ENCODE_DISABLED;
2976 erq->flags |= index + 1;
2977
2978 if (priv->wep_restrict)
2979 erq->flags |= IW_ENCODE_RESTRICTED;
2980 else
2981 erq->flags |= IW_ENCODE_OPEN;
2982
2983 xlen = le16_to_cpu(priv->keys[index].len);
2984
2985 erq->length = xlen;
2986
2987 memcpy(keybuf, priv->keys[index].data, ORINOCO_MAX_KEY_SIZE);
2988
2989 orinoco_unlock(priv, &flags);
2990 return 0;
2991 }
2992
2993 static int orinoco_ioctl_setessid(struct net_device *dev,
2994 struct iw_request_info *info,
2995 struct iw_point *erq,
2996 char *essidbuf)
2997 {
2998 struct orinoco_private *priv = netdev_priv(dev);
2999 unsigned long flags;
3000
3001 /* Note : ESSID is ignored in Ad-Hoc demo mode, but we can set it
3002 * anyway... - Jean II */
3003
3004 /* Hum... Should not use Wireless Extension constant (may change),
3005 * should use our own... - Jean II */
3006 if (erq->length > IW_ESSID_MAX_SIZE)
3007 return -E2BIG;
3008
3009 if (orinoco_lock(priv, &flags) != 0)
3010 return -EBUSY;
3011
3012 /* NULL the string (for NULL termination & ESSID = ANY) - Jean II */
3013 memset(priv->desired_essid, 0, sizeof(priv->desired_essid));
3014
3015 /* If not ANY, get the new ESSID */
3016 if (erq->flags) {
3017 memcpy(priv->desired_essid, essidbuf, erq->length);
3018 }
3019
3020 orinoco_unlock(priv, &flags);
3021
3022 return -EINPROGRESS; /* Call commit handler */
3023 }
3024
3025 static int orinoco_ioctl_getessid(struct net_device *dev,
3026 struct iw_request_info *info,
3027 struct iw_point *erq,
3028 char *essidbuf)
3029 {
3030 struct orinoco_private *priv = netdev_priv(dev);
3031 int active;
3032 int err = 0;
3033 unsigned long flags;
3034
3035 if (netif_running(dev)) {
3036 err = orinoco_hw_get_essid(priv, &active, essidbuf);
3037 if (err < 0)
3038 return err;
3039 erq->length = err;
3040 } else {
3041 if (orinoco_lock(priv, &flags) != 0)
3042 return -EBUSY;
3043 memcpy(essidbuf, priv->desired_essid, IW_ESSID_MAX_SIZE);
3044 erq->length = strlen(priv->desired_essid);
3045 orinoco_unlock(priv, &flags);
3046 }
3047
3048 erq->flags = 1;
3049
3050 return 0;
3051 }
3052
3053 static int orinoco_ioctl_setnick(struct net_device *dev,
3054 struct iw_request_info *info,
3055 struct iw_point *nrq,
3056 char *nickbuf)
3057 {
3058 struct orinoco_private *priv = netdev_priv(dev);
3059 unsigned long flags;
3060
3061 if (nrq->length > IW_ESSID_MAX_SIZE)
3062 return -E2BIG;
3063
3064 if (orinoco_lock(priv, &flags) != 0)
3065 return -EBUSY;
3066
3067 memset(priv->nick, 0, sizeof(priv->nick));
3068 memcpy(priv->nick, nickbuf, nrq->length);
3069
3070 orinoco_unlock(priv, &flags);
3071
3072 return -EINPROGRESS; /* Call commit handler */
3073 }
3074
3075 static int orinoco_ioctl_getnick(struct net_device *dev,
3076 struct iw_request_info *info,
3077 struct iw_point *nrq,
3078 char *nickbuf)
3079 {
3080 struct orinoco_private *priv = netdev_priv(dev);
3081 unsigned long flags;
3082
3083 if (orinoco_lock(priv, &flags) != 0)
3084 return -EBUSY;
3085
3086 memcpy(nickbuf, priv->nick, IW_ESSID_MAX_SIZE);
3087 orinoco_unlock(priv, &flags);
3088
3089 nrq->length = strlen(priv->nick);
3090
3091 return 0;
3092 }
3093
3094 static int orinoco_ioctl_setfreq(struct net_device *dev,
3095 struct iw_request_info *info,
3096 struct iw_freq *frq,
3097 char *extra)
3098 {
3099 struct orinoco_private *priv = netdev_priv(dev);
3100 int chan = -1;
3101 unsigned long flags;
3102 int err = -EINPROGRESS; /* Call commit handler */
3103
3104 /* In infrastructure mode the AP sets the channel */
3105 if (priv->iw_mode == IW_MODE_INFRA)
3106 return -EBUSY;
3107
3108 if ( (frq->e == 0) && (frq->m <= 1000) ) {
3109 /* Setting by channel number */
3110 chan = frq->m;
3111 } else {
3112 /* Setting by frequency - search the table */
3113 int mult = 1;
3114 int i;
3115
3116 for (i = 0; i < (6 - frq->e); i++)
3117 mult *= 10;
3118
3119 for (i = 0; i < NUM_CHANNELS; i++)
3120 if (frq->m == (channel_frequency[i] * mult))
3121 chan = i+1;
3122 }
3123
3124 if ( (chan < 1) || (chan > NUM_CHANNELS) ||
3125 ! (priv->channel_mask & (1 << (chan-1)) ) )
3126 return -EINVAL;
3127
3128 if (orinoco_lock(priv, &flags) != 0)
3129 return -EBUSY;
3130
3131 priv->channel = chan;
3132 if (priv->iw_mode == IW_MODE_MONITOR) {
3133 /* Fast channel change - no commit if successful */
3134 hermes_t *hw = &priv->hw;
3135 err = hermes_docmd_wait(hw, HERMES_CMD_TEST |
3136 HERMES_TEST_SET_CHANNEL,
3137 chan, NULL);
3138 }
3139 orinoco_unlock(priv, &flags);
3140
3141 return err;
3142 }
3143
3144 static int orinoco_ioctl_getfreq(struct net_device *dev,
3145 struct iw_request_info *info,
3146 struct iw_freq *frq,
3147 char *extra)
3148 {
3149 struct orinoco_private *priv = netdev_priv(dev);
3150 int tmp;
3151
3152 /* Locking done in there */
3153 tmp = orinoco_hw_get_freq(priv);
3154 if (tmp < 0) {
3155 return tmp;
3156 }
3157
3158 frq->m = tmp;
3159 frq->e = 1;
3160
3161 return 0;
3162 }
3163
3164 static int orinoco_ioctl_getsens(struct net_device *dev,
3165 struct iw_request_info *info,
3166 struct iw_param *srq,
3167 char *extra)
3168 {
3169 struct orinoco_private *priv = netdev_priv(dev);
3170 hermes_t *hw = &priv->hw;
3171 u16 val;
3172 int err;
3173 unsigned long flags;
3174
3175 if (!priv->has_sensitivity)
3176 return -EOPNOTSUPP;
3177
3178 if (orinoco_lock(priv, &flags) != 0)
3179 return -EBUSY;
3180 err = hermes_read_wordrec(hw, USER_BAP,
3181 HERMES_RID_CNFSYSTEMSCALE, &val);
3182 orinoco_unlock(priv, &flags);
3183
3184 if (err)
3185 return err;
3186
3187 srq->value = val;
3188 srq->fixed = 0; /* auto */
3189
3190 return 0;
3191 }
3192
3193 static int orinoco_ioctl_setsens(struct net_device *dev,
3194 struct iw_request_info *info,
3195 struct iw_param *srq,
3196 char *extra)
3197 {
3198 struct orinoco_private *priv = netdev_priv(dev);
3199 int val = srq->value;
3200 unsigned long flags;
3201
3202 if (!priv->has_sensitivity)
3203 return -EOPNOTSUPP;
3204
3205 if ((val < 1) || (val > 3))
3206 return -EINVAL;
3207
3208 if (orinoco_lock(priv, &flags) != 0)
3209 return -EBUSY;
3210 priv->ap_density = val;
3211 orinoco_unlock(priv, &flags);
3212
3213 return -EINPROGRESS; /* Call commit handler */
3214 }
3215
3216 static int orinoco_ioctl_setrts(struct net_device *dev,
3217 struct iw_request_info *info,
3218 struct iw_param *rrq,
3219 char *extra)
3220 {
3221 struct orinoco_private *priv = netdev_priv(dev);
3222 int val = rrq->value;
3223 unsigned long flags;
3224
3225 if (rrq->disabled)
3226 val = 2347;
3227
3228 if ( (val < 0) || (val > 2347) )
3229 return -EINVAL;
3230
3231 if (orinoco_lock(priv, &flags) != 0)
3232 return -EBUSY;
3233
3234 priv->rts_thresh = val;
3235 orinoco_unlock(priv, &flags);
3236
3237 return -EINPROGRESS; /* Call commit handler */
3238 }
3239
3240 static int orinoco_ioctl_getrts(struct net_device *dev,
3241 struct iw_request_info *info,
3242 struct iw_param *rrq,
3243 char *extra)
3244 {
3245 struct orinoco_private *priv = netdev_priv(dev);
3246
3247 rrq->value = priv->rts_thresh;
3248 rrq->disabled = (rrq->value == 2347);
3249 rrq->fixed = 1;
3250
3251 return 0;
3252 }
3253
3254 static int orinoco_ioctl_setfrag(struct net_device *dev,
3255 struct iw_request_info *info,
3256 struct iw_param *frq,
3257 char *extra)
3258 {
3259 struct orinoco_private *priv = netdev_priv(dev);
3260 int err = -EINPROGRESS; /* Call commit handler */
3261 unsigned long flags;
3262
3263 if (orinoco_lock(priv, &flags) != 0)
3264 return -EBUSY;
3265
3266 if (priv->has_mwo) {
3267 if (frq->disabled)
3268 priv->mwo_robust = 0;
3269 else {
3270 if (frq->fixed)
3271 printk(KERN_WARNING "%s: Fixed fragmentation is "
3272 "not supported on this firmware. "
3273 "Using MWO robust instead.\n", dev->name);
3274 priv->mwo_robust = 1;
3275 }
3276 } else {
3277 if (frq->disabled)
3278 priv->frag_thresh = 2346;
3279 else {
3280 if ( (frq->value < 256) || (frq->value > 2346) )
3281 err = -EINVAL;
3282 else
3283 priv->frag_thresh = frq->value & ~0x1; /* must be even */
3284 }
3285 }
3286
3287 orinoco_unlock(priv, &flags);
3288
3289 return err;
3290 }
3291
3292 static int orinoco_ioctl_getfrag(struct net_device *dev,
3293 struct iw_request_info *info,
3294 struct iw_param *frq,
3295 char *extra)
3296 {
3297 struct orinoco_private *priv = netdev_priv(dev);
3298 hermes_t *hw = &priv->hw;
3299 int err;
3300 u16 val;
3301 unsigned long flags;
3302
3303 if (orinoco_lock(priv, &flags) != 0)
3304 return -EBUSY;
3305
3306 if (priv->has_mwo) {
3307 err = hermes_read_wordrec(hw, USER_BAP,
3308 HERMES_RID_CNFMWOROBUST_AGERE,
3309 &val);
3310 if (err)
3311 val = 0;
3312
3313 frq->value = val ? 2347 : 0;
3314 frq->disabled = ! val;
3315 frq->fixed = 0;
3316 } else {
3317 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFFRAGMENTATIONTHRESHOLD,
3318 &val);
3319 if (err)
3320 val = 0;
3321
3322 frq->value = val;
3323 frq->disabled = (val >= 2346);
3324 frq->fixed = 1;
3325 }
3326
3327 orinoco_unlock(priv, &flags);
3328
3329 return err;
3330 }
3331
3332 static int orinoco_ioctl_setrate(struct net_device *dev,
3333 struct iw_request_info *info,
3334 struct iw_param *rrq,
3335 char *extra)
3336 {
3337 struct orinoco_private *priv = netdev_priv(dev);
3338 int ratemode = -1;
3339 int bitrate; /* 100s of kilobits */
3340 int i;
3341 unsigned long flags;
3342
3343 /* As the user space doesn't know our highest rate, it uses -1
3344 * to ask us to set the highest rate. Test it using "iwconfig
3345 * ethX rate auto" - Jean II */
3346 if (rrq->value == -1)
3347 bitrate = 110;
3348 else {
3349 if (rrq->value % 100000)
3350 return -EINVAL;
3351 bitrate = rrq->value / 100000;
3352 }
3353
3354 if ( (bitrate != 10) && (bitrate != 20) &&
3355 (bitrate != 55) && (bitrate != 110) )
3356 return -EINVAL;
3357
3358 for (i = 0; i < BITRATE_TABLE_SIZE; i++)
3359 if ( (bitrate_table[i].bitrate == bitrate) &&
3360 (bitrate_table[i].automatic == ! rrq->fixed) ) {
3361 ratemode = i;
3362 break;
3363 }
3364
3365 if (ratemode == -1)
3366 return -EINVAL;
3367
3368 if (orinoco_lock(priv, &flags) != 0)
3369 return -EBUSY;
3370 priv->bitratemode = ratemode;
3371 orinoco_unlock(priv, &flags);
3372
3373 return -EINPROGRESS;
3374 }
3375
3376 static int orinoco_ioctl_getrate(struct net_device *dev,
3377 struct iw_request_info *info,
3378 struct iw_param *rrq,
3379 char *extra)
3380 {
3381 struct orinoco_private *priv = netdev_priv(dev);
3382 hermes_t *hw = &priv->hw;
3383 int err = 0;
3384 int ratemode;
3385 int i;
3386 u16 val;
3387 unsigned long flags;
3388
3389 if (orinoco_lock(priv, &flags) != 0)
3390 return -EBUSY;
3391
3392 ratemode = priv->bitratemode;
3393
3394 BUG_ON((ratemode < 0) || (ratemode >= BITRATE_TABLE_SIZE));
3395
3396 rrq->value = bitrate_table[ratemode].bitrate * 100000;
3397 rrq->fixed = ! bitrate_table[ratemode].automatic;
3398 rrq->disabled = 0;
3399
3400 /* If the interface is running we try to find more about the
3401 current mode */
3402 if (netif_running(dev)) {
3403 err = hermes_read_wordrec(hw, USER_BAP,
3404 HERMES_RID_CURRENTTXRATE, &val);
3405 if (err)
3406 goto out;
3407
3408 switch (priv->firmware_type) {
3409 case FIRMWARE_TYPE_AGERE: /* Lucent style rate */
3410 /* Note : in Lucent firmware, the return value of
3411 * HERMES_RID_CURRENTTXRATE is the bitrate in Mb/s,
3412 * and therefore is totally different from the
3413 * encoding of HERMES_RID_CNFTXRATECONTROL.
3414 * Don't forget that 6Mb/s is really 5.5Mb/s */
3415 if (val == 6)
3416 rrq->value = 5500000;
3417 else
3418 rrq->value = val * 1000000;
3419 break;
3420 case FIRMWARE_TYPE_INTERSIL: /* Intersil style rate */
3421 case FIRMWARE_TYPE_SYMBOL: /* Symbol style rate */
3422 for (i = 0; i < BITRATE_TABLE_SIZE; i++)
3423 if (bitrate_table[i].intersil_txratectrl == val) {
3424 ratemode = i;
3425 break;
3426 }
3427 if (i >= BITRATE_TABLE_SIZE)
3428 printk(KERN_INFO "%s: Unable to determine current bitrate (0x%04hx)\n",
3429 dev->name, val);
3430
3431 rrq->value = bitrate_table[ratemode].bitrate * 100000;
3432 break;
3433 default:
3434 BUG();
3435 }
3436 }
3437
3438 out:
3439 orinoco_unlock(priv, &flags);
3440
3441 return err;
3442 }
3443
3444 static int orinoco_ioctl_setpower(struct net_device *dev,
3445 struct iw_request_info *info,
3446 struct iw_param *prq,
3447 char *extra)
3448 {
3449 struct orinoco_private *priv = netdev_priv(dev);
3450 int err = -EINPROGRESS; /* Call commit handler */
3451 unsigned long flags;
3452
3453 if (orinoco_lock(priv, &flags) != 0)
3454 return -EBUSY;
3455
3456 if (prq->disabled) {
3457 priv->pm_on = 0;
3458 } else {
3459 switch (prq->flags & IW_POWER_MODE) {
3460 case IW_POWER_UNICAST_R:
3461 priv->pm_mcast = 0;
3462 priv->pm_on = 1;
3463 break;
3464 case IW_POWER_ALL_R:
3465 priv->pm_mcast = 1;
3466 priv->pm_on = 1;
3467 break;
3468 case IW_POWER_ON:
3469 /* No flags : but we may have a value - Jean II */
3470 break;
3471 default:
3472 err = -EINVAL;
3473 goto out;
3474 }
3475
3476 if (prq->flags & IW_POWER_TIMEOUT) {
3477 priv->pm_on = 1;
3478 priv->pm_timeout = prq->value / 1000;
3479 }
3480 if (prq->flags & IW_POWER_PERIOD) {
3481 priv->pm_on = 1;
3482 priv->pm_period = prq->value / 1000;
3483 }
3484 /* It's valid to not have a value if we are just toggling
3485 * the flags... Jean II */
3486 if(!priv->pm_on) {
3487 err = -EINVAL;
3488 goto out;
3489 }
3490 }
3491
3492 out:
3493 orinoco_unlock(priv, &flags);
3494
3495 return err;
3496 }
3497
3498 static int orinoco_ioctl_getpower(struct net_device *dev,
3499 struct iw_request_info *info,
3500 struct iw_param *prq,
3501 char *extra)
3502 {
3503 struct orinoco_private *priv = netdev_priv(dev);
3504 hermes_t *hw = &priv->hw;
3505 int err = 0;
3506 u16 enable, period, timeout, mcast;
3507 unsigned long flags;
3508
3509 if (orinoco_lock(priv, &flags) != 0)
3510 return -EBUSY;
3511
3512 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFPMENABLED, &enable);
3513 if (err)
3514 goto out;
3515
3516 err = hermes_read_wordrec(hw, USER_BAP,
3517 HERMES_RID_CNFMAXSLEEPDURATION, &period);
3518 if (err)
3519 goto out;
3520
3521 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFPMHOLDOVERDURATION, &timeout);
3522 if (err)
3523 goto out;
3524
3525 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFMULTICASTRECEIVE, &mcast);
3526 if (err)
3527 goto out;
3528
3529 prq->disabled = !enable;
3530 /* Note : by default, display the period */
3531 if ((prq->flags & IW_POWER_TYPE) == IW_POWER_TIMEOUT) {
3532 prq->flags = IW_POWER_TIMEOUT;
3533 prq->value = timeout * 1000;
3534 } else {
3535 prq->flags = IW_POWER_PERIOD;
3536 prq->value = period * 1000;
3537 }
3538 if (mcast)
3539 prq->flags |= IW_POWER_ALL_R;
3540 else
3541 prq->flags |= IW_POWER_UNICAST_R;
3542
3543 out:
3544 orinoco_unlock(priv, &flags);
3545
3546 return err;
3547 }
3548
3549 static int orinoco_ioctl_getretry(struct net_device *dev,
3550 struct iw_request_info *info,
3551 struct iw_param *rrq,
3552 char *extra)
3553 {
3554 struct orinoco_private *priv = netdev_priv(dev);
3555 hermes_t *hw = &priv->hw;
3556 int err = 0;
3557 u16 short_limit, long_limit, lifetime;
3558 unsigned long flags;
3559
3560 if (orinoco_lock(priv, &flags) != 0)
3561 return -EBUSY;
3562
3563 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_SHORTRETRYLIMIT,
3564 &short_limit);
3565 if (err)
3566 goto out;
3567
3568 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_LONGRETRYLIMIT,
3569 &long_limit);
3570 if (err)
3571 goto out;
3572
3573 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_MAXTRANSMITLIFETIME,
3574 &lifetime);
3575 if (err)
3576 goto out;
3577
3578 rrq->disabled = 0; /* Can't be disabled */
3579
3580 /* Note : by default, display the retry number */
3581 if ((rrq->flags & IW_RETRY_TYPE) == IW_RETRY_LIFETIME) {
3582 rrq->flags = IW_RETRY_LIFETIME;
3583 rrq->value = lifetime * 1000; /* ??? */
3584 } else {
3585 /* By default, display the min number */
3586 if ((rrq->flags & IW_RETRY_LONG)) {
3587 rrq->flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
3588 rrq->value = long_limit;
3589 } else {
3590 rrq->flags = IW_RETRY_LIMIT;
3591 rrq->value = short_limit;
3592 if(short_limit != long_limit)
3593 rrq->flags |= IW_RETRY_SHORT;
3594 }
3595 }
3596
3597 out:
3598 orinoco_unlock(priv, &flags);
3599
3600 return err;
3601 }
3602
3603 static int orinoco_ioctl_reset(struct net_device *dev,
3604 struct iw_request_info *info,
3605 void *wrqu,
3606 char *extra)
3607 {
3608 struct orinoco_private *priv = netdev_priv(dev);
3609
3610 if (! capable(CAP_NET_ADMIN))
3611 return -EPERM;
3612
3613 if (info->cmd == (SIOCIWFIRSTPRIV + 0x1)) {
3614 printk(KERN_DEBUG "%s: Forcing reset!\n", dev->name);
3615
3616 /* Firmware reset */
3617 orinoco_reset(&priv->reset_work);
3618 } else {
3619 printk(KERN_DEBUG "%s: Force scheduling reset!\n", dev->name);
3620
3621 schedule_work(&priv->reset_work);
3622 }
3623
3624 return 0;
3625 }
3626
3627 static int orinoco_ioctl_setibssport(struct net_device *dev,
3628 struct iw_request_info *info,
3629 void *wrqu,
3630 char *extra)
3631
3632 {
3633 struct orinoco_private *priv = netdev_priv(dev);
3634 int val = *( (int *) extra );
3635 unsigned long flags;
3636
3637 if (orinoco_lock(priv, &flags) != 0)
3638 return -EBUSY;
3639
3640 priv->ibss_port = val ;
3641
3642 /* Actually update the mode we are using */
3643 set_port_type(priv);
3644
3645 orinoco_unlock(priv, &flags);
3646 return -EINPROGRESS; /* Call commit handler */
3647 }
3648
3649 static int orinoco_ioctl_getibssport(struct net_device *dev,
3650 struct iw_request_info *info,
3651 void *wrqu,
3652 char *extra)
3653 {
3654 struct orinoco_private *priv = netdev_priv(dev);
3655 int *val = (int *) extra;
3656
3657 *val = priv->ibss_port;
3658 return 0;
3659 }
3660
3661 static int orinoco_ioctl_setport3(struct net_device *dev,
3662 struct iw_request_info *info,
3663 void *wrqu,
3664 char *extra)
3665 {
3666 struct orinoco_private *priv = netdev_priv(dev);
3667 int val = *( (int *) extra );
3668 int err = 0;
3669 unsigned long flags;
3670
3671 if (orinoco_lock(priv, &flags) != 0)
3672 return -EBUSY;
3673
3674 switch (val) {
3675 case 0: /* Try to do IEEE ad-hoc mode */
3676 if (! priv->has_ibss) {
3677 err = -EINVAL;
3678 break;
3679 }
3680 priv->prefer_port3 = 0;
3681
3682 break;
3683
3684 case 1: /* Try to do Lucent proprietary ad-hoc mode */
3685 if (! priv->has_port3) {
3686 err = -EINVAL;
3687 break;
3688 }
3689 priv->prefer_port3 = 1;
3690 break;
3691
3692 default:
3693 err = -EINVAL;
3694 }
3695
3696 if (! err) {
3697 /* Actually update the mode we are using */
3698 set_port_type(priv);
3699 err = -EINPROGRESS;
3700 }
3701
3702 orinoco_unlock(priv, &flags);
3703
3704 return err;
3705 }
3706
3707 static int orinoco_ioctl_getport3(struct net_device *dev,
3708 struct iw_request_info *info,
3709 void *wrqu,
3710 char *extra)
3711 {
3712 struct orinoco_private *priv = netdev_priv(dev);
3713 int *val = (int *) extra;
3714
3715 *val = priv->prefer_port3;
3716 return 0;
3717 }
3718
3719 static int orinoco_ioctl_setpreamble(struct net_device *dev,
3720 struct iw_request_info *info,
3721 void *wrqu,
3722 char *extra)
3723 {
3724 struct orinoco_private *priv = netdev_priv(dev);
3725 unsigned long flags;
3726 int val;
3727
3728 if (! priv->has_preamble)
3729 return -EOPNOTSUPP;
3730
3731 /* 802.11b has recently defined some short preamble.
3732 * Basically, the Phy header has been reduced in size.
3733 * This increase performance, especially at high rates
3734 * (the preamble is transmitted at 1Mb/s), unfortunately
3735 * this give compatibility troubles... - Jean II */
3736 val = *( (int *) extra );
3737
3738 if (orinoco_lock(priv, &flags) != 0)
3739 return -EBUSY;
3740
3741 if (val)
3742 priv->preamble = 1;
3743 else
3744 priv->preamble = 0;
3745
3746 orinoco_unlock(priv, &flags);
3747
3748 return -EINPROGRESS; /* Call commit handler */
3749 }
3750
3751 static int orinoco_ioctl_getpreamble(struct net_device *dev,
3752 struct iw_request_info *info,
3753 void *wrqu,
3754 char *extra)
3755 {
3756 struct orinoco_private *priv = netdev_priv(dev);
3757 int *val = (int *) extra;
3758
3759 if (! priv->has_preamble)
3760 return -EOPNOTSUPP;
3761
3762 *val = priv->preamble;
3763 return 0;
3764 }
3765
3766 /* ioctl interface to hermes_read_ltv()
3767 * To use with iwpriv, pass the RID as the token argument, e.g.
3768 * iwpriv get_rid [0xfc00]
3769 * At least Wireless Tools 25 is required to use iwpriv.
3770 * For Wireless Tools 25 and 26 append "dummy" are the end. */
3771 static int orinoco_ioctl_getrid(struct net_device *dev,
3772 struct iw_request_info *info,
3773 struct iw_point *data,
3774 char *extra)
3775 {
3776 struct orinoco_private *priv = netdev_priv(dev);
3777 hermes_t *hw = &priv->hw;
3778 int rid = data->flags;
3779 u16 length;
3780 int err;
3781 unsigned long flags;
3782
3783 /* It's a "get" function, but we don't want users to access the
3784 * WEP key and other raw firmware data */
3785 if (! capable(CAP_NET_ADMIN))
3786 return -EPERM;
3787
3788 if (rid < 0xfc00 || rid > 0xffff)
3789 return -EINVAL;
3790
3791 if (orinoco_lock(priv, &flags) != 0)
3792 return -EBUSY;
3793
3794 err = hermes_read_ltv(hw, USER_BAP, rid, MAX_RID_LEN, &length,
3795 extra);
3796 if (err)
3797 goto out;
3798
3799 data->length = min_t(u16, HERMES_RECLEN_TO_BYTES(length),
3800 MAX_RID_LEN);
3801
3802 out:
3803 orinoco_unlock(priv, &flags);
3804 return err;
3805 }
3806
3807 /* Trigger a scan (look for other cells in the vicinity */
3808 static int orinoco_ioctl_setscan(struct net_device *dev,
3809 struct iw_request_info *info,
3810 struct iw_param *srq,
3811 char *extra)
3812 {
3813 struct orinoco_private *priv = netdev_priv(dev);
3814 hermes_t *hw = &priv->hw;
3815 int err = 0;
3816 unsigned long flags;
3817
3818 /* Note : you may have realised that, as this is a SET operation,
3819 * this is privileged and therefore a normal user can't
3820 * perform scanning.
3821 * This is not an error, while the device perform scanning,
3822 * traffic doesn't flow, so it's a perfect DoS...
3823 * Jean II */
3824
3825 if (orinoco_lock(priv, &flags) != 0)
3826 return -EBUSY;
3827
3828 /* Scanning with port 0 disabled would fail */
3829 if (!netif_running(dev)) {
3830 err = -ENETDOWN;
3831 goto out;
3832 }
3833
3834 /* In monitor mode, the scan results are always empty.
3835 * Probe responses are passed to the driver as received
3836 * frames and could be processed in software. */
3837 if (priv->iw_mode == IW_MODE_MONITOR) {
3838 err = -EOPNOTSUPP;
3839 goto out;
3840 }
3841
3842 /* Note : because we don't lock out the irq handler, the way
3843 * we access scan variables in priv is critical.
3844 * o scan_inprogress : not touched by irq handler
3845 * o scan_mode : not touched by irq handler
3846 * o scan_result : irq is strict producer, non-irq is strict
3847 * consumer.
3848 * o scan_len : synchronised with scan_result
3849 * Before modifying anything on those variables, please think hard !
3850 * Jean II */
3851
3852 /* If there is still some left-over scan results, get rid of it */
3853 if (priv->scan_result != NULL) {
3854 /* What's likely is that a client did crash or was killed
3855 * between triggering the scan request and reading the
3856 * results, so we need to reset everything.
3857 * Some clients that are too slow may suffer from that...
3858 * Jean II */
3859 kfree(priv->scan_result);
3860 priv->scan_result = NULL;
3861 }
3862
3863 /* Save flags */
3864 priv->scan_mode = srq->flags;
3865
3866 /* Always trigger scanning, even if it's in progress.
3867 * This way, if the info frame get lost, we will recover somewhat
3868 * gracefully - Jean II */
3869
3870 if (priv->has_hostscan) {
3871 switch (priv->firmware_type) {
3872 case FIRMWARE_TYPE_SYMBOL:
3873 err = hermes_write_wordrec(hw, USER_BAP,
3874 HERMES_RID_CNFHOSTSCAN_SYMBOL,
3875 HERMES_HOSTSCAN_SYMBOL_ONCE |
3876 HERMES_HOSTSCAN_SYMBOL_BCAST);
3877 break;
3878 case FIRMWARE_TYPE_INTERSIL: {
3879 __le16 req[3];
3880
3881 req[0] = cpu_to_le16(0x3fff); /* All channels */
3882 req[1] = cpu_to_le16(0x0001); /* rate 1 Mbps */
3883 req[2] = 0; /* Any ESSID */
3884 err = HERMES_WRITE_RECORD(hw, USER_BAP,
3885 HERMES_RID_CNFHOSTSCAN, &req);
3886 }
3887 break;
3888 case FIRMWARE_TYPE_AGERE:
3889 err = hermes_write_wordrec(hw, USER_BAP,
3890 HERMES_RID_CNFSCANSSID_AGERE,
3891 0); /* Any ESSID */
3892 if (err)
3893 break;
3894
3895 err = hermes_inquire(hw, HERMES_INQ_SCAN);
3896 break;
3897 }
3898 } else
3899 err = hermes_inquire(hw, HERMES_INQ_SCAN);
3900
3901 /* One more client */
3902 if (! err)
3903 priv->scan_inprogress = 1;
3904
3905 out:
3906 orinoco_unlock(priv, &flags);
3907 return err;
3908 }
3909
3910 /* Translate scan data returned from the card to a card independant
3911 * format that the Wireless Tools will understand - Jean II
3912 * Return message length or -errno for fatal errors */
3913 static inline int orinoco_translate_scan(struct net_device *dev,
3914 char *buffer,
3915 char *scan,
3916 int scan_len)
3917 {
3918 struct orinoco_private *priv = netdev_priv(dev);
3919 int offset; /* In the scan data */
3920 union hermes_scan_info *atom;
3921 int atom_len;
3922 u16 capabilities;
3923 u16 channel;
3924 struct iw_event iwe; /* Temporary buffer */
3925 char * current_ev = buffer;
3926 char * end_buf = buffer + IW_SCAN_MAX_DATA;
3927
3928 switch (priv->firmware_type) {
3929 case FIRMWARE_TYPE_AGERE:
3930 atom_len = sizeof(struct agere_scan_apinfo);
3931 offset = 0;
3932 break;
3933 case FIRMWARE_TYPE_SYMBOL:
3934 /* Lack of documentation necessitates this hack.
3935 * Different firmwares have 68 or 76 byte long atoms.
3936 * We try modulo first. If the length divides by both,
3937 * we check what would be the channel in the second
3938 * frame for a 68-byte atom. 76-byte atoms have 0 there.
3939 * Valid channel cannot be 0. */
3940 if (scan_len % 76)
3941 atom_len = 68;
3942 else if (scan_len % 68)
3943 atom_len = 76;
3944 else if (scan_len >= 1292 && scan[68] == 0)
3945 atom_len = 76;
3946 else
3947 atom_len = 68;
3948 offset = 0;
3949 break;
3950 case FIRMWARE_TYPE_INTERSIL:
3951 offset = 4;
3952 if (priv->has_hostscan) {
3953 atom_len = le16_to_cpup((__le16 *)scan);
3954 /* Sanity check for atom_len */
3955 if (atom_len < sizeof(struct prism2_scan_apinfo)) {
3956 printk(KERN_ERR "%s: Invalid atom_len in scan data: %d\n",
3957 dev->name, atom_len);
3958 return -EIO;
3959 }
3960 } else
3961 atom_len = offsetof(struct prism2_scan_apinfo, atim);
3962 break;
3963 default:
3964 return -EOPNOTSUPP;
3965 }
3966
3967 /* Check that we got an whole number of atoms */
3968 if ((scan_len - offset) % atom_len) {
3969 printk(KERN_ERR "%s: Unexpected scan data length %d, "
3970 "atom_len %d, offset %d\n", dev->name, scan_len,
3971 atom_len, offset);
3972 return -EIO;
3973 }
3974
3975 /* Read the entries one by one */
3976 for (; offset + atom_len <= scan_len; offset += atom_len) {
3977 /* Get next atom */
3978 atom = (union hermes_scan_info *) (scan + offset);
3979
3980 /* First entry *MUST* be the AP MAC address */
3981 iwe.cmd = SIOCGIWAP;
3982 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
3983 memcpy(iwe.u.ap_addr.sa_data, atom->a.bssid, ETH_ALEN);
3984 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_ADDR_LEN);
3985
3986 /* Other entries will be displayed in the order we give them */
3987
3988 /* Add the ESSID */
3989 iwe.u.data.length = le16_to_cpu(atom->a.essid_len);
3990 if (iwe.u.data.length > 32)
3991 iwe.u.data.length = 32;
3992 iwe.cmd = SIOCGIWESSID;
3993 iwe.u.data.flags = 1;
3994 current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe, atom->a.essid);
3995
3996 /* Add mode */
3997 iwe.cmd = SIOCGIWMODE;
3998 capabilities = le16_to_cpu(atom->a.capabilities);
3999 if (capabilities & 0x3) {
4000 if (capabilities & 0x1)
4001 iwe.u.mode = IW_MODE_MASTER;
4002 else
4003 iwe.u.mode = IW_MODE_ADHOC;
4004 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_UINT_LEN);
4005 }
4006
4007 channel = atom->s.channel;
4008 if ( (channel >= 1) && (channel <= NUM_CHANNELS) ) {
4009 /* Add frequency */
4010 iwe.cmd = SIOCGIWFREQ;
4011 iwe.u.freq.m = channel_frequency[channel-1] * 100000;
4012 iwe.u.freq.e = 1;
4013 current_ev = iwe_stream_add_event(current_ev, end_buf,
4014 &iwe, IW_EV_FREQ_LEN);
4015 }
4016
4017 /* Add quality statistics */
4018 iwe.cmd = IWEVQUAL;
4019 iwe.u.qual.updated = 0x10; /* no link quality */
4020 iwe.u.qual.level = (__u8) le16_to_cpu(atom->a.level) - 0x95;
4021 iwe.u.qual.noise = (__u8) le16_to_cpu(atom->a.noise) - 0x95;
4022 /* Wireless tools prior to 27.pre22 will show link quality
4023 * anyway, so we provide a reasonable value. */
4024 if (iwe.u.qual.level > iwe.u.qual.noise)
4025 iwe.u.qual.qual = iwe.u.qual.level - iwe.u.qual.noise;
4026 else
4027 iwe.u.qual.qual = 0;
4028 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_QUAL_LEN);
4029
4030 /* Add encryption capability */
4031 iwe.cmd = SIOCGIWENCODE;
4032 if (capabilities & 0x10)
4033 iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
4034 else
4035 iwe.u.data.flags = IW_ENCODE_DISABLED;
4036 iwe.u.data.length = 0;
4037 current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe, atom->a.essid);
4038
4039 /* Bit rate is not available in Lucent/Agere firmwares */
4040 if (priv->firmware_type != FIRMWARE_TYPE_AGERE) {
4041 char * current_val = current_ev + IW_EV_LCP_LEN;
4042 int i;
4043 int step;
4044
4045 if (priv->firmware_type == FIRMWARE_TYPE_SYMBOL)
4046 step = 2;
4047 else
4048 step = 1;
4049
4050 iwe.cmd = SIOCGIWRATE;
4051 /* Those two flags are ignored... */
4052 iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
4053 /* Max 10 values */
4054 for (i = 0; i < 10; i += step) {
4055 /* NULL terminated */
4056 if (atom->p.rates[i] == 0x0)
4057 break;
4058 /* Bit rate given in 500 kb/s units (+ 0x80) */
4059 iwe.u.bitrate.value = ((atom->p.rates[i] & 0x7f) * 500000);
4060 current_val = iwe_stream_add_value(current_ev, current_val,
4061 end_buf, &iwe,
4062 IW_EV_PARAM_LEN);
4063 }
4064 /* Check if we added any event */
4065 if ((current_val - current_ev) > IW_EV_LCP_LEN)
4066 current_ev = current_val;
4067 }
4068
4069 /* The other data in the scan result are not really
4070 * interesting, so for now drop it - Jean II */
4071 }
4072 return current_ev - buffer;
4073 }
4074
4075 /* Return results of a scan */
4076 static int orinoco_ioctl_getscan(struct net_device *dev,
4077 struct iw_request_info *info,
4078 struct iw_point *srq,
4079 char *extra)
4080 {
4081 struct orinoco_private *priv = netdev_priv(dev);
4082 int err = 0;
4083 unsigned long flags;
4084
4085 if (orinoco_lock(priv, &flags) != 0)
4086 return -EBUSY;
4087
4088 /* If no results yet, ask to try again later */
4089 if (priv->scan_result == NULL) {
4090 if (priv->scan_inprogress)
4091 /* Important note : we don't want to block the caller
4092 * until results are ready for various reasons.
4093 * First, managing wait queues is complex and racy.
4094 * Second, we grab some rtnetlink lock before comming
4095 * here (in dev_ioctl()).
4096 * Third, we generate an Wireless Event, so the
4097 * caller can wait itself on that - Jean II */
4098 err = -EAGAIN;
4099 else
4100 /* Client error, no scan results...
4101 * The caller need to restart the scan. */
4102 err = -ENODATA;
4103 } else {
4104 /* We have some results to push back to user space */
4105
4106 /* Translate to WE format */
4107 int ret = orinoco_translate_scan(dev, extra,
4108 priv->scan_result,
4109 priv->scan_len);
4110
4111 if (ret < 0) {
4112 err = ret;
4113 kfree(priv->scan_result);
4114 priv->scan_result = NULL;
4115 } else {
4116 srq->length = ret;
4117
4118 /* Return flags */
4119 srq->flags = (__u16) priv->scan_mode;
4120
4121 /* In any case, Scan results will be cleaned up in the
4122 * reset function and when exiting the driver.
4123 * The person triggering the scanning may never come to
4124 * pick the results, so we need to do it in those places.
4125 * Jean II */
4126
4127 #ifdef SCAN_SINGLE_READ
4128 /* If you enable this option, only one client (the first
4129 * one) will be able to read the result (and only one
4130 * time). If there is multiple concurent clients that
4131 * want to read scan results, this behavior is not
4132 * advisable - Jean II */
4133 kfree(priv->scan_result);
4134 priv->scan_result = NULL;
4135 #endif /* SCAN_SINGLE_READ */
4136 /* Here, if too much time has elapsed since last scan,
4137 * we may want to clean up scan results... - Jean II */
4138 }
4139
4140 /* Scan is no longer in progress */
4141 priv->scan_inprogress = 0;
4142 }
4143
4144 orinoco_unlock(priv, &flags);
4145 return err;
4146 }
4147
4148 /* Commit handler, called after set operations */
4149 static int orinoco_ioctl_commit(struct net_device *dev,
4150 struct iw_request_info *info,
4151 void *wrqu,
4152 char *extra)
4153 {
4154 struct orinoco_private *priv = netdev_priv(dev);
4155 struct hermes *hw = &priv->hw;
4156 unsigned long flags;
4157 int err = 0;
4158
4159 if (!priv->open)
4160 return 0;
4161
4162 if (priv->broken_disableport) {
4163 orinoco_reset(&priv->reset_work);
4164 return 0;
4165 }
4166
4167 if (orinoco_lock(priv, &flags) != 0)
4168 return err;
4169
4170 err = hermes_disable_port(hw, 0);
4171 if (err) {
4172 printk(KERN_WARNING "%s: Unable to disable port "
4173 "while reconfiguring card\n", dev->name);
4174 priv->broken_disableport = 1;
4175 goto out;
4176 }
4177
4178 err = __orinoco_program_rids(dev);
4179 if (err) {
4180 printk(KERN_WARNING "%s: Unable to reconfigure card\n",
4181 dev->name);
4182 goto out;
4183 }
4184
4185 err = hermes_enable_port(hw, 0);
4186 if (err) {
4187 printk(KERN_WARNING "%s: Unable to enable port while reconfiguring card\n",
4188 dev->name);
4189 goto out;
4190 }
4191
4192 out:
4193 if (err) {
4194 printk(KERN_WARNING "%s: Resetting instead...\n", dev->name);
4195 schedule_work(&priv->reset_work);
4196 err = 0;
4197 }
4198
4199 orinoco_unlock(priv, &flags);
4200 return err;
4201 }
4202
4203 static const struct iw_priv_args orinoco_privtab[] = {
4204 { SIOCIWFIRSTPRIV + 0x0, 0, 0, "force_reset" },
4205 { SIOCIWFIRSTPRIV + 0x1, 0, 0, "card_reset" },
4206 { SIOCIWFIRSTPRIV + 0x2, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
4207 0, "set_port3" },
4208 { SIOCIWFIRSTPRIV + 0x3, 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
4209 "get_port3" },
4210 { SIOCIWFIRSTPRIV + 0x4, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
4211 0, "set_preamble" },
4212 { SIOCIWFIRSTPRIV + 0x5, 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
4213 "get_preamble" },
4214 { SIOCIWFIRSTPRIV + 0x6, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
4215 0, "set_ibssport" },
4216 { SIOCIWFIRSTPRIV + 0x7, 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
4217 "get_ibssport" },
4218 { SIOCIWFIRSTPRIV + 0x9, 0, IW_PRIV_TYPE_BYTE | MAX_RID_LEN,
4219 "get_rid" },
4220 };
4221
4222
4223 /*
4224 * Structures to export the Wireless Handlers
4225 */
4226
4227 static const iw_handler orinoco_handler[] = {
4228 [SIOCSIWCOMMIT-SIOCIWFIRST] = (iw_handler) orinoco_ioctl_commit,
4229 [SIOCGIWNAME -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getname,
4230 [SIOCSIWFREQ -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setfreq,
4231 [SIOCGIWFREQ -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getfreq,
4232 [SIOCSIWMODE -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setmode,
4233 [SIOCGIWMODE -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getmode,
4234 [SIOCSIWSENS -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setsens,
4235 [SIOCGIWSENS -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getsens,
4236 [SIOCGIWRANGE -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getiwrange,
4237 [SIOCSIWSPY -SIOCIWFIRST] = (iw_handler) iw_handler_set_spy,
4238 [SIOCGIWSPY -SIOCIWFIRST] = (iw_handler) iw_handler_get_spy,
4239 [SIOCSIWTHRSPY-SIOCIWFIRST] = (iw_handler) iw_handler_set_thrspy,
4240 [SIOCGIWTHRSPY-SIOCIWFIRST] = (iw_handler) iw_handler_get_thrspy,
4241 [SIOCSIWAP -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setwap,
4242 [SIOCGIWAP -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getwap,
4243 [SIOCSIWSCAN -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setscan,
4244 [SIOCGIWSCAN -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getscan,
4245 [SIOCSIWESSID -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setessid,
4246 [SIOCGIWESSID -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getessid,
4247 [SIOCSIWNICKN -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setnick,
4248 [SIOCGIWNICKN -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getnick,
4249 [SIOCSIWRATE -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setrate,
4250 [SIOCGIWRATE -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getrate,
4251 [SIOCSIWRTS -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setrts,
4252 [SIOCGIWRTS -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getrts,
4253 [SIOCSIWFRAG -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setfrag,
4254 [SIOCGIWFRAG -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getfrag,
4255 [SIOCGIWRETRY -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getretry,
4256 [SIOCSIWENCODE-SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setiwencode,
4257 [SIOCGIWENCODE-SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getiwencode,
4258 [SIOCSIWPOWER -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setpower,
4259 [SIOCGIWPOWER -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getpower,
4260 };
4261
4262
4263 /*
4264 Added typecasting since we no longer use iwreq_data -- Moustafa
4265 */
4266 static const iw_handler orinoco_private_handler[] = {
4267 [0] = (iw_handler) orinoco_ioctl_reset,
4268 [1] = (iw_handler) orinoco_ioctl_reset,
4269 [2] = (iw_handler) orinoco_ioctl_setport3,
4270 [3] = (iw_handler) orinoco_ioctl_getport3,
4271 [4] = (iw_handler) orinoco_ioctl_setpreamble,
4272 [5] = (iw_handler) orinoco_ioctl_getpreamble,
4273 [6] = (iw_handler) orinoco_ioctl_setibssport,
4274 [7] = (iw_handler) orinoco_ioctl_getibssport,
4275 [9] = (iw_handler) orinoco_ioctl_getrid,
4276 };
4277
4278 static const struct iw_handler_def orinoco_handler_def = {
4279 .num_standard = ARRAY_SIZE(orinoco_handler),
4280 .num_private = ARRAY_SIZE(orinoco_private_handler),
4281 .num_private_args = ARRAY_SIZE(orinoco_privtab),
4282 .standard = orinoco_handler,
4283 .private = orinoco_private_handler,
4284 .private_args = orinoco_privtab,
4285 .get_wireless_stats = orinoco_get_wireless_stats,
4286 };
4287
4288 static void orinoco_get_drvinfo(struct net_device *dev,
4289 struct ethtool_drvinfo *info)
4290 {
4291 struct orinoco_private *priv = netdev_priv(dev);
4292
4293 strncpy(info->driver, DRIVER_NAME, sizeof(info->driver) - 1);
4294 strncpy(info->version, DRIVER_VERSION, sizeof(info->version) - 1);
4295 strncpy(info->fw_version, priv->fw_name, sizeof(info->fw_version) - 1);
4296 if (dev->class_dev.dev)
4297 strncpy(info->bus_info, dev->class_dev.dev->bus_id,
4298 sizeof(info->bus_info) - 1);
4299 else
4300 snprintf(info->bus_info, sizeof(info->bus_info) - 1,
4301 "PCMCIA %p", priv->hw.iobase);
4302 }
4303
4304 static const struct ethtool_ops orinoco_ethtool_ops = {
4305 .get_drvinfo = orinoco_get_drvinfo,
4306 .get_link = ethtool_op_get_link,
4307 };
4308
4309 /********************************************************************/
4310 /* Module initialization */
4311 /********************************************************************/
4312
4313 EXPORT_SYMBOL(alloc_orinocodev);
4314 EXPORT_SYMBOL(free_orinocodev);
4315
4316 EXPORT_SYMBOL(__orinoco_up);
4317 EXPORT_SYMBOL(__orinoco_down);
4318 EXPORT_SYMBOL(orinoco_reinit_firmware);
4319
4320 EXPORT_SYMBOL(orinoco_interrupt);
4321
4322 /* Can't be declared "const" or the whole __initdata section will
4323 * become const */
4324 static char version[] __initdata = DRIVER_NAME " " DRIVER_VERSION
4325 " (David Gibson <hermes@gibson.dropbear.id.au>, "
4326 "Pavel Roskin <proski@gnu.org>, et al)";
4327
4328 static int __init init_orinoco(void)
4329 {
4330 printk(KERN_DEBUG "%s\n", version);
4331 return 0;
4332 }
4333
4334 static void __exit exit_orinoco(void)
4335 {
4336 }
4337
4338 module_init(init_orinoco);
4339 module_exit(exit_orinoco);
Linux with added FPC-III support