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[PATCH] orinoco: Remove inneeded system includes.
[linux-2.6/sactl.git] / drivers / net / wireless / orinoco.c
blobf76fe3d10248e4b3c1ed1db46f246495cedd59ad
1 /* orinoco.c - (formerly known as dldwd_cs.c and orinoco_cs.c)
2 *
3 * A driver for Hermes or Prism 2 chipset based PCMCIA wireless
4 * adaptors, with Lucent/Agere, Intersil or Symbol firmware.
5 *
6 * Current maintainers (as of 29 September 2003) are:
7 * Pavel Roskin <proski AT gnu.org>
8 * and David Gibson <hermes AT gibson.dropbear.id.au>
9 *
10 * (C) Copyright David Gibson, IBM Corporation 2001-2003.
11 * Copyright (C) 2000 David Gibson, Linuxcare Australia.
12 * With some help from :
13 * Copyright (C) 2001 Jean Tourrilhes, HP Labs
14 * Copyright (C) 2001 Benjamin Herrenschmidt
15 *
16 * Based on dummy_cs.c 1.27 2000/06/12 21:27:25
17 *
18 * Portions based on wvlan_cs.c 1.0.6, Copyright Andreas Neuhaus <andy
19 * AT fasta.fh-dortmund.de>
20 * http://www.stud.fh-dortmund.de/~andy/wvlan/
21 *
22 * The contents of this file are subject to the Mozilla Public License
23 * Version 1.1 (the "License"); you may not use this file except in
24 * compliance with the License. You may obtain a copy of the License
25 * at http://www.mozilla.org/MPL/
26 *
27 * Software distributed under the License is distributed on an "AS IS"
28 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
29 * the License for the specific language governing rights and
30 * limitations under the License.
31 *
32 * The initial developer of the original code is David A. Hinds
33 * <dahinds AT users.sourceforge.net>. Portions created by David
34 * A. Hinds are Copyright (C) 1999 David A. Hinds. All Rights
35 * Reserved.
36 *
37 * Alternatively, the contents of this file may be used under the
38 * terms of the GNU General Public License version 2 (the "GPL"), in
39 * which case the provisions of the GPL are applicable instead of the
40 * above. If you wish to allow the use of your version of this file
41 * only under the terms of the GPL and not to allow others to use your
42 * version of this file under the MPL, indicate your decision by
43 * deleting the provisions above and replace them with the notice and
44 * other provisions required by the GPL. If you do not delete the
45 * provisions above, a recipient may use your version of this file
46 * under either the MPL or the GPL. */
47
48 /*
49 * TODO
50 * o Handle de-encapsulation within network layer, provide 802.11
51 * headers (patch from Thomas 'Dent' Mirlacher)
52 * o Fix possible races in SPY handling.
53 * o Disconnect wireless extensions from fundamental configuration.
54 * o (maybe) Software WEP support (patch from Stano Meduna).
55 * o (maybe) Use multiple Tx buffers - driver handling queue
56 * rather than firmware.
57 */
58
59 /* Locking and synchronization:
60 *
61 * The basic principle is that everything is serialized through a
62 * single spinlock, priv->lock. The lock is used in user, bh and irq
63 * context, so when taken outside hardirq context it should always be
64 * taken with interrupts disabled. The lock protects both the
65 * hardware and the struct orinoco_private.
66 *
67 * Another flag, priv->hw_unavailable indicates that the hardware is
68 * unavailable for an extended period of time (e.g. suspended, or in
69 * the middle of a hard reset). This flag is protected by the
70 * spinlock. All code which touches the hardware should check the
71 * flag after taking the lock, and if it is set, give up on whatever
72 * they are doing and drop the lock again. The orinoco_lock()
73 * function handles this (it unlocks and returns -EBUSY if
74 * hw_unavailable is non-zero).
75 */
76
77 #define DRIVER_NAME "orinoco"
78
79 #include <linux/config.h>
80 #include <linux/module.h>
81 #include <linux/kernel.h>
82 #include <linux/init.h>
83 #include <linux/netdevice.h>
84 #include <linux/etherdevice.h>
85 #include <linux/ethtool.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 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 /* Used in Event handling.
205 * We avoid nested structres as they break on ARM -- Moustafa */
206 struct hermes_tx_descriptor_802_11 {
207 /* hermes_tx_descriptor */
208 u16 status;
209 u16 reserved1;
210 u16 reserved2;
211 u32 sw_support;
212 u8 retry_count;
213 u8 tx_rate;
214 u16 tx_control;
215
216 /* ieee802_11_hdr */
217 u16 frame_ctl;
218 u16 duration_id;
219 u8 addr1[ETH_ALEN];
220 u8 addr2[ETH_ALEN];
221 u8 addr3[ETH_ALEN];
222 u16 seq_ctl;
223 u8 addr4[ETH_ALEN];
224 u16 data_len;
225
226 /* ethhdr */
227 unsigned char h_dest[ETH_ALEN]; /* destination eth addr */
228 unsigned char h_source[ETH_ALEN]; /* source ether addr */
229 unsigned short h_proto; /* packet type ID field */
230
231 /* p8022_hdr */
232 u8 dsap;
233 u8 ssap;
234 u8 ctrl;
235 u8 oui[3];
236
237 u16 ethertype;
238 } __attribute__ ((packed));
239
240 /* Rx frame header except compatibility 802.3 header */
241 struct hermes_rx_descriptor {
242 /* Control */
243 u16 status;
244 u32 time;
245 u8 silence;
246 u8 signal;
247 u8 rate;
248 u8 rxflow;
249 u32 reserved;
250
251 /* 802.11 header */
252 u16 frame_ctl;
253 u16 duration_id;
254 u8 addr1[ETH_ALEN];
255 u8 addr2[ETH_ALEN];
256 u8 addr3[ETH_ALEN];
257 u16 seq_ctl;
258 u8 addr4[ETH_ALEN];
259
260 /* Data length */
261 u16 data_len;
262 } __attribute__ ((packed));
263
264 /********************************************************************/
265 /* Function prototypes */
266 /********************************************************************/
267
268 static int __orinoco_program_rids(struct net_device *dev);
269 static void __orinoco_set_multicast_list(struct net_device *dev);
270
271 /********************************************************************/
272 /* Internal helper functions */
273 /********************************************************************/
274
275 static inline void set_port_type(struct orinoco_private *priv)
276 {
277 switch (priv->iw_mode) {
278 case IW_MODE_INFRA:
279 priv->port_type = 1;
280 priv->createibss = 0;
281 break;
282 case IW_MODE_ADHOC:
283 if (priv->prefer_port3) {
284 priv->port_type = 3;
285 priv->createibss = 0;
286 } else {
287 priv->port_type = priv->ibss_port;
288 priv->createibss = 1;
289 }
290 break;
291 case IW_MODE_MONITOR:
292 priv->port_type = 3;
293 priv->createibss = 0;
294 break;
295 default:
296 printk(KERN_ERR "%s: Invalid priv->iw_mode in set_port_type()\n",
297 priv->ndev->name);
298 }
299 }
300
301 /********************************************************************/
302 /* Device methods */
303 /********************************************************************/
304
305 static int orinoco_open(struct net_device *dev)
306 {
307 struct orinoco_private *priv = netdev_priv(dev);
308 unsigned long flags;
309 int err;
310
311 if (orinoco_lock(priv, &flags) != 0)
312 return -EBUSY;
313
314 err = __orinoco_up(dev);
315
316 if (! err)
317 priv->open = 1;
318
319 orinoco_unlock(priv, &flags);
320
321 return err;
322 }
323
324 static int orinoco_stop(struct net_device *dev)
325 {
326 struct orinoco_private *priv = netdev_priv(dev);
327 int err = 0;
328
329 /* We mustn't use orinoco_lock() here, because we need to be
330 able to close the interface even if hw_unavailable is set
331 (e.g. as we're released after a PC Card removal) */
332 spin_lock_irq(&priv->lock);
333
334 priv->open = 0;
335
336 err = __orinoco_down(dev);
337
338 spin_unlock_irq(&priv->lock);
339
340 return err;
341 }
342
343 static struct net_device_stats *orinoco_get_stats(struct net_device *dev)
344 {
345 struct orinoco_private *priv = netdev_priv(dev);
346
347 return &priv->stats;
348 }
349
350 static struct iw_statistics *orinoco_get_wireless_stats(struct net_device *dev)
351 {
352 struct orinoco_private *priv = netdev_priv(dev);
353 hermes_t *hw = &priv->hw;
354 struct iw_statistics *wstats = &priv->wstats;
355 int err;
356 unsigned long flags;
357
358 if (! netif_device_present(dev)) {
359 printk(KERN_WARNING "%s: get_wireless_stats() called while device not present\n",
360 dev->name);
361 return NULL; /* FIXME: Can we do better than this? */
362 }
363
364 /* If busy, return the old stats. Returning NULL may cause
365 * the interface to disappear from /proc/net/wireless */
366 if (orinoco_lock(priv, &flags) != 0)
367 return wstats;
368
369 /* We can't really wait for the tallies inquiry command to
370 * complete, so we just use the previous results and trigger
371 * a new tallies inquiry command for next time - Jean II */
372 /* FIXME: Really we should wait for the inquiry to come back -
373 * as it is the stats we give don't make a whole lot of sense.
374 * Unfortunately, it's not clear how to do that within the
375 * wireless extensions framework: I think we're in user
376 * context, but a lock seems to be held by the time we get in
377 * here so we're not safe to sleep here. */
378 hermes_inquire(hw, HERMES_INQ_TALLIES);
379
380 if (priv->iw_mode == IW_MODE_ADHOC) {
381 memset(&wstats->qual, 0, sizeof(wstats->qual));
382 /* If a spy address is defined, we report stats of the
383 * first spy address - Jean II */
384 if (SPY_NUMBER(priv)) {
385 wstats->qual.qual = priv->spy_data.spy_stat[0].qual;
386 wstats->qual.level = priv->spy_data.spy_stat[0].level;
387 wstats->qual.noise = priv->spy_data.spy_stat[0].noise;
388 wstats->qual.updated = priv->spy_data.spy_stat[0].updated;
389 }
390 } else {
391 struct {
392 u16 qual, signal, noise;
393 } __attribute__ ((packed)) cq;
394
395 err = HERMES_READ_RECORD(hw, USER_BAP,
396 HERMES_RID_COMMSQUALITY, &cq);
397
398 if (!err) {
399 wstats->qual.qual = (int)le16_to_cpu(cq.qual);
400 wstats->qual.level = (int)le16_to_cpu(cq.signal) - 0x95;
401 wstats->qual.noise = (int)le16_to_cpu(cq.noise) - 0x95;
402 wstats->qual.updated = 7;
403 }
404 }
405
406 orinoco_unlock(priv, &flags);
407 return wstats;
408 }
409
410 static void orinoco_set_multicast_list(struct net_device *dev)
411 {
412 struct orinoco_private *priv = netdev_priv(dev);
413 unsigned long flags;
414
415 if (orinoco_lock(priv, &flags) != 0) {
416 printk(KERN_DEBUG "%s: orinoco_set_multicast_list() "
417 "called when hw_unavailable\n", dev->name);
418 return;
419 }
420
421 __orinoco_set_multicast_list(dev);
422 orinoco_unlock(priv, &flags);
423 }
424
425 static int orinoco_change_mtu(struct net_device *dev, int new_mtu)
426 {
427 struct orinoco_private *priv = netdev_priv(dev);
428
429 if ( (new_mtu < ORINOCO_MIN_MTU) || (new_mtu > ORINOCO_MAX_MTU) )
430 return -EINVAL;
431
432 if ( (new_mtu + ENCAPS_OVERHEAD + IEEE80211_HLEN) >
433 (priv->nicbuf_size - ETH_HLEN) )
434 return -EINVAL;
435
436 dev->mtu = new_mtu;
437
438 return 0;
439 }
440
441 /********************************************************************/
442 /* Tx path */
443 /********************************************************************/
444
445 static int orinoco_xmit(struct sk_buff *skb, struct net_device *dev)
446 {
447 struct orinoco_private *priv = netdev_priv(dev);
448 struct net_device_stats *stats = &priv->stats;
449 hermes_t *hw = &priv->hw;
450 int err = 0;
451 u16 txfid = priv->txfid;
452 char *p;
453 struct ethhdr *eh;
454 int len, data_len, data_off;
455 struct hermes_tx_descriptor desc;
456 unsigned long flags;
457
458 TRACE_ENTER(dev->name);
459
460 if (! netif_running(dev)) {
461 printk(KERN_ERR "%s: Tx on stopped device!\n",
462 dev->name);
463 TRACE_EXIT(dev->name);
464 return 1;
465 }
466
467 if (netif_queue_stopped(dev)) {
468 printk(KERN_DEBUG "%s: Tx while transmitter busy!\n",
469 dev->name);
470 TRACE_EXIT(dev->name);
471 return 1;
472 }
473
474 if (orinoco_lock(priv, &flags) != 0) {
475 printk(KERN_ERR "%s: orinoco_xmit() called while hw_unavailable\n",
476 dev->name);
477 TRACE_EXIT(dev->name);
478 return 1;
479 }
480
481 if (! netif_carrier_ok(dev) || (priv->iw_mode == IW_MODE_MONITOR)) {
482 /* Oops, the firmware hasn't established a connection,
483 silently drop the packet (this seems to be the
484 safest approach). */
485 stats->tx_errors++;
486 orinoco_unlock(priv, &flags);
487 dev_kfree_skb(skb);
488 TRACE_EXIT(dev->name);
489 return 0;
490 }
491
492 /* Length of the packet body */
493 /* FIXME: what if the skb is smaller than this? */
494 len = max_t(int,skb->len - ETH_HLEN, ETH_ZLEN - ETH_HLEN);
495
496 eh = (struct ethhdr *)skb->data;
497
498 memset(&desc, 0, sizeof(desc));
499 desc.tx_control = cpu_to_le16(HERMES_TXCTRL_TX_OK | HERMES_TXCTRL_TX_EX);
500 err = hermes_bap_pwrite(hw, USER_BAP, &desc, sizeof(desc), txfid, 0);
501 if (err) {
502 if (net_ratelimit())
503 printk(KERN_ERR "%s: Error %d writing Tx descriptor "
504 "to BAP\n", dev->name, err);
505 stats->tx_errors++;
506 goto fail;
507 }
508
509 /* Clear the 802.11 header and data length fields - some
510 * firmwares (e.g. Lucent/Agere 8.xx) appear to get confused
511 * if this isn't done. */
512 hermes_clear_words(hw, HERMES_DATA0,
513 HERMES_802_3_OFFSET - HERMES_802_11_OFFSET);
514
515 /* Encapsulate Ethernet-II frames */
516 if (ntohs(eh->h_proto) > ETH_DATA_LEN) { /* Ethernet-II frame */
517 struct header_struct hdr;
518 data_len = len;
519 data_off = HERMES_802_3_OFFSET + sizeof(hdr);
520 p = skb->data + ETH_HLEN;
521
522 /* 802.3 header */
523 memcpy(hdr.dest, eh->h_dest, ETH_ALEN);
524 memcpy(hdr.src, eh->h_source, ETH_ALEN);
525 hdr.len = htons(data_len + ENCAPS_OVERHEAD);
526
527 /* 802.2 header */
528 memcpy(&hdr.dsap, &encaps_hdr, sizeof(encaps_hdr));
529
530 hdr.ethertype = eh->h_proto;
531 err = hermes_bap_pwrite(hw, USER_BAP, &hdr, sizeof(hdr),
532 txfid, HERMES_802_3_OFFSET);
533 if (err) {
534 if (net_ratelimit())
535 printk(KERN_ERR "%s: Error %d writing packet "
536 "header to BAP\n", dev->name, err);
537 stats->tx_errors++;
538 goto fail;
539 }
540 } else { /* IEEE 802.3 frame */
541 data_len = len + ETH_HLEN;
542 data_off = HERMES_802_3_OFFSET;
543 p = skb->data;
544 }
545
546 /* Round up for odd length packets */
547 err = hermes_bap_pwrite(hw, USER_BAP, p, ALIGN(data_len, 2),
548 txfid, data_off);
549 if (err) {
550 printk(KERN_ERR "%s: Error %d writing packet to BAP\n",
551 dev->name, err);
552 stats->tx_errors++;
553 goto fail;
554 }
555
556 /* Finally, we actually initiate the send */
557 netif_stop_queue(dev);
558
559 err = hermes_docmd_wait(hw, HERMES_CMD_TX | HERMES_CMD_RECL,
560 txfid, NULL);
561 if (err) {
562 netif_start_queue(dev);
563 printk(KERN_ERR "%s: Error %d transmitting packet\n",
564 dev->name, err);
565 stats->tx_errors++;
566 goto fail;
567 }
568
569 dev->trans_start = jiffies;
570 stats->tx_bytes += data_off + data_len;
571
572 orinoco_unlock(priv, &flags);
573
574 dev_kfree_skb(skb);
575
576 TRACE_EXIT(dev->name);
577
578 return 0;
579 fail:
580 TRACE_EXIT(dev->name);
581
582 orinoco_unlock(priv, &flags);
583 return err;
584 }
585
586 static void __orinoco_ev_alloc(struct net_device *dev, hermes_t *hw)
587 {
588 struct orinoco_private *priv = netdev_priv(dev);
589 u16 fid = hermes_read_regn(hw, ALLOCFID);
590
591 if (fid != priv->txfid) {
592 if (fid != DUMMY_FID)
593 printk(KERN_WARNING "%s: Allocate event on unexpected fid (%04X)\n",
594 dev->name, fid);
595 return;
596 }
597
598 hermes_write_regn(hw, ALLOCFID, DUMMY_FID);
599 }
600
601 static void __orinoco_ev_tx(struct net_device *dev, hermes_t *hw)
602 {
603 struct orinoco_private *priv = netdev_priv(dev);
604 struct net_device_stats *stats = &priv->stats;
605
606 stats->tx_packets++;
607
608 netif_wake_queue(dev);
609
610 hermes_write_regn(hw, TXCOMPLFID, DUMMY_FID);
611 }
612
613 static void __orinoco_ev_txexc(struct net_device *dev, hermes_t *hw)
614 {
615 struct orinoco_private *priv = netdev_priv(dev);
616 struct net_device_stats *stats = &priv->stats;
617 u16 fid = hermes_read_regn(hw, TXCOMPLFID);
618 struct hermes_tx_descriptor_802_11 hdr;
619 int err = 0;
620
621 if (fid == DUMMY_FID)
622 return; /* Nothing's really happened */
623
624 /* Read the frame header */
625 err = hermes_bap_pread(hw, IRQ_BAP, &hdr,
626 sizeof(struct hermes_tx_descriptor) +
627 sizeof(struct ieee80211_hdr_4addr),
628 fid, 0);
629
630 hermes_write_regn(hw, TXCOMPLFID, DUMMY_FID);
631 stats->tx_errors++;
632
633 if (err) {
634 printk(KERN_WARNING "%s: Unable to read descriptor on Tx error "
635 "(FID=%04X error %d)\n",
636 dev->name, fid, err);
637 return;
638 }
639
640 DEBUG(1, "%s: Tx error, err %d (FID=%04X)\n", dev->name,
641 err, fid);
642
643 /* We produce a TXDROP event only for retry or lifetime
644 * exceeded, because that's the only status that really mean
645 * that this particular node went away.
646 * Other errors means that *we* screwed up. - Jean II */
647 hdr.status = le16_to_cpu(hdr.status);
648 if (hdr.status & (HERMES_TXSTAT_RETRYERR | HERMES_TXSTAT_AGEDERR)) {
649 union iwreq_data wrqu;
650
651 /* Copy 802.11 dest address.
652 * We use the 802.11 header because the frame may
653 * not be 802.3 or may be mangled...
654 * In Ad-Hoc mode, it will be the node address.
655 * In managed mode, it will be most likely the AP addr
656 * User space will figure out how to convert it to
657 * whatever it needs (IP address or else).
658 * - Jean II */
659 memcpy(wrqu.addr.sa_data, hdr.addr1, ETH_ALEN);
660 wrqu.addr.sa_family = ARPHRD_ETHER;
661
662 /* Send event to user space */
663 wireless_send_event(dev, IWEVTXDROP, &wrqu, NULL);
664 }
665
666 netif_wake_queue(dev);
667 }
668
669 static void orinoco_tx_timeout(struct net_device *dev)
670 {
671 struct orinoco_private *priv = netdev_priv(dev);
672 struct net_device_stats *stats = &priv->stats;
673 struct hermes *hw = &priv->hw;
674
675 printk(KERN_WARNING "%s: Tx timeout! "
676 "ALLOCFID=%04x, TXCOMPLFID=%04x, EVSTAT=%04x\n",
677 dev->name, hermes_read_regn(hw, ALLOCFID),
678 hermes_read_regn(hw, TXCOMPLFID), hermes_read_regn(hw, EVSTAT));
679
680 stats->tx_errors++;
681
682 schedule_work(&priv->reset_work);
683 }
684
685 /********************************************************************/
686 /* Rx path (data frames) */
687 /********************************************************************/
688
689 /* Does the frame have a SNAP header indicating it should be
690 * de-encapsulated to Ethernet-II? */
691 static inline int is_ethersnap(void *_hdr)
692 {
693 u8 *hdr = _hdr;
694
695 /* We de-encapsulate all packets which, a) have SNAP headers
696 * (i.e. SSAP=DSAP=0xaa and CTRL=0x3 in the 802.2 LLC header
697 * and where b) the OUI of the SNAP header is 00:00:00 or
698 * 00:00:f8 - we need both because different APs appear to use
699 * different OUIs for some reason */
700 return (memcmp(hdr, &encaps_hdr, 5) == 0)
701 && ( (hdr[5] == 0x00) || (hdr[5] == 0xf8) );
702 }
703
704 static inline void orinoco_spy_gather(struct net_device *dev, u_char *mac,
705 int level, int noise)
706 {
707 struct iw_quality wstats;
708 wstats.level = level - 0x95;
709 wstats.noise = noise - 0x95;
710 wstats.qual = (level > noise) ? (level - noise) : 0;
711 wstats.updated = 7;
712 /* Update spy records */
713 wireless_spy_update(dev, mac, &wstats);
714 }
715
716 static void orinoco_stat_gather(struct net_device *dev,
717 struct sk_buff *skb,
718 struct hermes_rx_descriptor *desc)
719 {
720 struct orinoco_private *priv = netdev_priv(dev);
721
722 /* Using spy support with lots of Rx packets, like in an
723 * infrastructure (AP), will really slow down everything, because
724 * the MAC address must be compared to each entry of the spy list.
725 * If the user really asks for it (set some address in the
726 * spy list), we do it, but he will pay the price.
727 * Note that to get here, you need both WIRELESS_SPY
728 * compiled in AND some addresses in the list !!!
729 */
730 /* Note : gcc will optimise the whole section away if
731 * WIRELESS_SPY is not defined... - Jean II */
732 if (SPY_NUMBER(priv)) {
733 orinoco_spy_gather(dev, skb->mac.raw + ETH_ALEN,
734 desc->signal, desc->silence);
735 }
736 }
737
738 /*
739 * orinoco_rx_monitor - handle received monitor frames.
740 *
741 * Arguments:
742 * dev network device
743 * rxfid received FID
744 * desc rx descriptor of the frame
745 *
746 * Call context: interrupt
747 */
748 static void orinoco_rx_monitor(struct net_device *dev, u16 rxfid,
749 struct hermes_rx_descriptor *desc)
750 {
751 u32 hdrlen = 30; /* return full header by default */
752 u32 datalen = 0;
753 u16 fc;
754 int err;
755 int len;
756 struct sk_buff *skb;
757 struct orinoco_private *priv = netdev_priv(dev);
758 struct net_device_stats *stats = &priv->stats;
759 hermes_t *hw = &priv->hw;
760
761 len = le16_to_cpu(desc->data_len);
762
763 /* Determine the size of the header and the data */
764 fc = le16_to_cpu(desc->frame_ctl);
765 switch (fc & IEEE80211_FCTL_FTYPE) {
766 case IEEE80211_FTYPE_DATA:
767 if ((fc & IEEE80211_FCTL_TODS)
768 && (fc & IEEE80211_FCTL_FROMDS))
769 hdrlen = 30;
770 else
771 hdrlen = 24;
772 datalen = len;
773 break;
774 case IEEE80211_FTYPE_MGMT:
775 hdrlen = 24;
776 datalen = len;
777 break;
778 case IEEE80211_FTYPE_CTL:
779 switch (fc & IEEE80211_FCTL_STYPE) {
780 case IEEE80211_STYPE_PSPOLL:
781 case IEEE80211_STYPE_RTS:
782 case IEEE80211_STYPE_CFEND:
783 case IEEE80211_STYPE_CFENDACK:
784 hdrlen = 16;
785 break;
786 case IEEE80211_STYPE_CTS:
787 case IEEE80211_STYPE_ACK:
788 hdrlen = 10;
789 break;
790 }
791 break;
792 default:
793 /* Unknown frame type */
794 break;
795 }
796
797 /* sanity check the length */
798 if (datalen > IEEE80211_DATA_LEN + 12) {
799 printk(KERN_DEBUG "%s: oversized monitor frame, "
800 "data length = %d\n", dev->name, datalen);
801 err = -EIO;
802 stats->rx_length_errors++;
803 goto update_stats;
804 }
805
806 skb = dev_alloc_skb(hdrlen + datalen);
807 if (!skb) {
808 printk(KERN_WARNING "%s: Cannot allocate skb for monitor frame\n",
809 dev->name);
810 err = -ENOMEM;
811 goto drop;
812 }
813
814 /* Copy the 802.11 header to the skb */
815 memcpy(skb_put(skb, hdrlen), &(desc->frame_ctl), hdrlen);
816 skb->mac.raw = skb->data;
817
818 /* If any, copy the data from the card to the skb */
819 if (datalen > 0) {
820 err = hermes_bap_pread(hw, IRQ_BAP, skb_put(skb, datalen),
821 ALIGN(datalen, 2), rxfid,
822 HERMES_802_2_OFFSET);
823 if (err) {
824 printk(KERN_ERR "%s: error %d reading monitor frame\n",
825 dev->name, err);
826 goto drop;
827 }
828 }
829
830 skb->dev = dev;
831 skb->ip_summed = CHECKSUM_NONE;
832 skb->pkt_type = PACKET_OTHERHOST;
833 skb->protocol = __constant_htons(ETH_P_802_2);
834
835 dev->last_rx = jiffies;
836 stats->rx_packets++;
837 stats->rx_bytes += skb->len;
838
839 netif_rx(skb);
840 return;
841
842 drop:
843 dev_kfree_skb_irq(skb);
844 update_stats:
845 stats->rx_errors++;
846 stats->rx_dropped++;
847 }
848
849 static void __orinoco_ev_rx(struct net_device *dev, hermes_t *hw)
850 {
851 struct orinoco_private *priv = netdev_priv(dev);
852 struct net_device_stats *stats = &priv->stats;
853 struct iw_statistics *wstats = &priv->wstats;
854 struct sk_buff *skb = NULL;
855 u16 rxfid, status, fc;
856 int length;
857 struct hermes_rx_descriptor desc;
858 struct ethhdr *hdr;
859 int err;
860
861 rxfid = hermes_read_regn(hw, RXFID);
862
863 err = hermes_bap_pread(hw, IRQ_BAP, &desc, sizeof(desc),
864 rxfid, 0);
865 if (err) {
866 printk(KERN_ERR "%s: error %d reading Rx descriptor. "
867 "Frame dropped.\n", dev->name, err);
868 goto update_stats;
869 }
870
871 status = le16_to_cpu(desc.status);
872
873 if (status & HERMES_RXSTAT_BADCRC) {
874 DEBUG(1, "%s: Bad CRC on Rx. Frame dropped.\n",
875 dev->name);
876 stats->rx_crc_errors++;
877 goto update_stats;
878 }
879
880 /* Handle frames in monitor mode */
881 if (priv->iw_mode == IW_MODE_MONITOR) {
882 orinoco_rx_monitor(dev, rxfid, &desc);
883 return;
884 }
885
886 if (status & HERMES_RXSTAT_UNDECRYPTABLE) {
887 DEBUG(1, "%s: Undecryptable frame on Rx. Frame dropped.\n",
888 dev->name);
889 wstats->discard.code++;
890 goto update_stats;
891 }
892
893 length = le16_to_cpu(desc.data_len);
894 fc = le16_to_cpu(desc.frame_ctl);
895
896 /* Sanity checks */
897 if (length < 3) { /* No for even an 802.2 LLC header */
898 /* At least on Symbol firmware with PCF we get quite a
899 lot of these legitimately - Poll frames with no
900 data. */
901 return;
902 }
903 if (length > IEEE80211_DATA_LEN) {
904 printk(KERN_WARNING "%s: Oversized frame received (%d bytes)\n",
905 dev->name, length);
906 stats->rx_length_errors++;
907 goto update_stats;
908 }
909
910 /* We need space for the packet data itself, plus an ethernet
911 header, plus 2 bytes so we can align the IP header on a
912 32bit boundary, plus 1 byte so we can read in odd length
913 packets from the card, which has an IO granularity of 16
914 bits */
915 skb = dev_alloc_skb(length+ETH_HLEN+2+1);
916 if (!skb) {
917 printk(KERN_WARNING "%s: Can't allocate skb for Rx\n",
918 dev->name);
919 goto update_stats;
920 }
921
922 /* We'll prepend the header, so reserve space for it. The worst
923 case is no decapsulation, when 802.3 header is prepended and
924 nothing is removed. 2 is for aligning the IP header. */
925 skb_reserve(skb, ETH_HLEN + 2);
926
927 err = hermes_bap_pread(hw, IRQ_BAP, skb_put(skb, length),
928 ALIGN(length, 2), rxfid,
929 HERMES_802_2_OFFSET);
930 if (err) {
931 printk(KERN_ERR "%s: error %d reading frame. "
932 "Frame dropped.\n", dev->name, err);
933 goto drop;
934 }
935
936 /* Handle decapsulation
937 * In most cases, the firmware tell us about SNAP frames.
938 * For some reason, the SNAP frames sent by LinkSys APs
939 * are not properly recognised by most firmwares.
940 * So, check ourselves */
941 if (length >= ENCAPS_OVERHEAD &&
942 (((status & HERMES_RXSTAT_MSGTYPE) == HERMES_RXSTAT_1042) ||
943 ((status & HERMES_RXSTAT_MSGTYPE) == HERMES_RXSTAT_TUNNEL) ||
944 is_ethersnap(skb->data))) {
945 /* These indicate a SNAP within 802.2 LLC within
946 802.11 frame which we'll need to de-encapsulate to
947 the original EthernetII frame. */
948 hdr = (struct ethhdr *)skb_push(skb, ETH_HLEN - ENCAPS_OVERHEAD);
949 } else {
950 /* 802.3 frame - prepend 802.3 header as is */
951 hdr = (struct ethhdr *)skb_push(skb, ETH_HLEN);
952 hdr->h_proto = htons(length);
953 }
954 memcpy(hdr->h_dest, desc.addr1, ETH_ALEN);
955 if (fc & IEEE80211_FCTL_FROMDS)
956 memcpy(hdr->h_source, desc.addr3, ETH_ALEN);
957 else
958 memcpy(hdr->h_source, desc.addr2, ETH_ALEN);
959
960 dev->last_rx = jiffies;
961 skb->dev = dev;
962 skb->protocol = eth_type_trans(skb, dev);
963 skb->ip_summed = CHECKSUM_NONE;
964 if (fc & IEEE80211_FCTL_TODS)
965 skb->pkt_type = PACKET_OTHERHOST;
966
967 /* Process the wireless stats if needed */
968 orinoco_stat_gather(dev, skb, &desc);
969
970 /* Pass the packet to the networking stack */
971 netif_rx(skb);
972 stats->rx_packets++;
973 stats->rx_bytes += length;
974
975 return;
976
977 drop:
978 dev_kfree_skb_irq(skb);
979 update_stats:
980 stats->rx_errors++;
981 stats->rx_dropped++;
982 }
983
984 /********************************************************************/
985 /* Rx path (info frames) */
986 /********************************************************************/
987
988 static void print_linkstatus(struct net_device *dev, u16 status)
989 {
990 char * s;
991
992 if (suppress_linkstatus)
993 return;
994
995 switch (status) {
996 case HERMES_LINKSTATUS_NOT_CONNECTED:
997 s = "Not Connected";
998 break;
999 case HERMES_LINKSTATUS_CONNECTED:
1000 s = "Connected";
1001 break;
1002 case HERMES_LINKSTATUS_DISCONNECTED:
1003 s = "Disconnected";
1004 break;
1005 case HERMES_LINKSTATUS_AP_CHANGE:
1006 s = "AP Changed";
1007 break;
1008 case HERMES_LINKSTATUS_AP_OUT_OF_RANGE:
1009 s = "AP Out of Range";
1010 break;
1011 case HERMES_LINKSTATUS_AP_IN_RANGE:
1012 s = "AP In Range";
1013 break;
1014 case HERMES_LINKSTATUS_ASSOC_FAILED:
1015 s = "Association Failed";
1016 break;
1017 default:
1018 s = "UNKNOWN";
1019 }
1020
1021 printk(KERN_INFO "%s: New link status: %s (%04x)\n",
1022 dev->name, s, status);
1023 }
1024
1025 /* Search scan results for requested BSSID, join it if found */
1026 static void orinoco_join_ap(struct net_device *dev)
1027 {
1028 struct orinoco_private *priv = netdev_priv(dev);
1029 struct hermes *hw = &priv->hw;
1030 int err;
1031 unsigned long flags;
1032 struct join_req {
1033 u8 bssid[ETH_ALEN];
1034 u16 channel;
1035 } __attribute__ ((packed)) req;
1036 const int atom_len = offsetof(struct prism2_scan_apinfo, atim);
1037 struct prism2_scan_apinfo *atom = NULL;
1038 int offset = 4;
1039 int found = 0;
1040 u8 *buf;
1041 u16 len;
1042
1043 /* Allocate buffer for scan results */
1044 buf = kmalloc(MAX_SCAN_LEN, GFP_KERNEL);
1045 if (! buf)
1046 return;
1047
1048 if (orinoco_lock(priv, &flags) != 0)
1049 goto out;
1050
1051 /* Sanity checks in case user changed something in the meantime */
1052 if (! priv->bssid_fixed)
1053 goto out;
1054
1055 if (strlen(priv->desired_essid) == 0)
1056 goto out;
1057
1058 /* Read scan results from the firmware */
1059 err = hermes_read_ltv(hw, USER_BAP,
1060 HERMES_RID_SCANRESULTSTABLE,
1061 MAX_SCAN_LEN, &len, buf);
1062 if (err) {
1063 printk(KERN_ERR "%s: Cannot read scan results\n",
1064 dev->name);
1065 goto out;
1066 }
1067
1068 len = HERMES_RECLEN_TO_BYTES(len);
1069
1070 /* Go through the scan results looking for the channel of the AP
1071 * we were requested to join */
1072 for (; offset + atom_len <= len; offset += atom_len) {
1073 atom = (struct prism2_scan_apinfo *) (buf + offset);
1074 if (memcmp(&atom->bssid, priv->desired_bssid, ETH_ALEN) == 0) {
1075 found = 1;
1076 break;
1077 }
1078 }
1079
1080 if (! found) {
1081 DEBUG(1, "%s: Requested AP not found in scan results\n",
1082 dev->name);
1083 goto out;
1084 }
1085
1086 memcpy(req.bssid, priv->desired_bssid, ETH_ALEN);
1087 req.channel = atom->channel; /* both are little-endian */
1088 err = HERMES_WRITE_RECORD(hw, USER_BAP, HERMES_RID_CNFJOINREQUEST,
1089 &req);
1090 if (err)
1091 printk(KERN_ERR "%s: Error issuing join request\n", dev->name);
1092
1093 out:
1094 kfree(buf);
1095 orinoco_unlock(priv, &flags);
1096 }
1097
1098 /* Send new BSSID to userspace */
1099 static void orinoco_send_wevents(struct net_device *dev)
1100 {
1101 struct orinoco_private *priv = netdev_priv(dev);
1102 struct hermes *hw = &priv->hw;
1103 union iwreq_data wrqu;
1104 int err;
1105 unsigned long flags;
1106
1107 if (orinoco_lock(priv, &flags) != 0)
1108 return;
1109
1110 err = hermes_read_ltv(hw, IRQ_BAP, HERMES_RID_CURRENTBSSID,
1111 ETH_ALEN, NULL, wrqu.ap_addr.sa_data);
1112 if (err != 0)
1113 return;
1114
1115 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
1116
1117 /* Send event to user space */
1118 wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
1119 orinoco_unlock(priv, &flags);
1120 }
1121
1122 static void __orinoco_ev_info(struct net_device *dev, hermes_t *hw)
1123 {
1124 struct orinoco_private *priv = netdev_priv(dev);
1125 u16 infofid;
1126 struct {
1127 u16 len;
1128 u16 type;
1129 } __attribute__ ((packed)) info;
1130 int len, type;
1131 int err;
1132
1133 /* This is an answer to an INQUIRE command that we did earlier,
1134 * or an information "event" generated by the card
1135 * The controller return to us a pseudo frame containing
1136 * the information in question - Jean II */
1137 infofid = hermes_read_regn(hw, INFOFID);
1138
1139 /* Read the info frame header - don't try too hard */
1140 err = hermes_bap_pread(hw, IRQ_BAP, &info, sizeof(info),
1141 infofid, 0);
1142 if (err) {
1143 printk(KERN_ERR "%s: error %d reading info frame. "
1144 "Frame dropped.\n", dev->name, err);
1145 return;
1146 }
1147
1148 len = HERMES_RECLEN_TO_BYTES(le16_to_cpu(info.len));
1149 type = le16_to_cpu(info.type);
1150
1151 switch (type) {
1152 case HERMES_INQ_TALLIES: {
1153 struct hermes_tallies_frame tallies;
1154 struct iw_statistics *wstats = &priv->wstats;
1155
1156 if (len > sizeof(tallies)) {
1157 printk(KERN_WARNING "%s: Tallies frame too long (%d bytes)\n",
1158 dev->name, len);
1159 len = sizeof(tallies);
1160 }
1161
1162 err = hermes_bap_pread(hw, IRQ_BAP, &tallies, len,
1163 infofid, sizeof(info));
1164 if (err)
1165 break;
1166
1167 /* Increment our various counters */
1168 /* wstats->discard.nwid - no wrong BSSID stuff */
1169 wstats->discard.code +=
1170 le16_to_cpu(tallies.RxWEPUndecryptable);
1171 if (len == sizeof(tallies))
1172 wstats->discard.code +=
1173 le16_to_cpu(tallies.RxDiscards_WEPICVError) +
1174 le16_to_cpu(tallies.RxDiscards_WEPExcluded);
1175 wstats->discard.misc +=
1176 le16_to_cpu(tallies.TxDiscardsWrongSA);
1177 wstats->discard.fragment +=
1178 le16_to_cpu(tallies.RxMsgInBadMsgFragments);
1179 wstats->discard.retries +=
1180 le16_to_cpu(tallies.TxRetryLimitExceeded);
1181 /* wstats->miss.beacon - no match */
1182 }
1183 break;
1184 case HERMES_INQ_LINKSTATUS: {
1185 struct hermes_linkstatus linkstatus;
1186 u16 newstatus;
1187 int connected;
1188
1189 if (priv->iw_mode == IW_MODE_MONITOR)
1190 break;
1191
1192 if (len != sizeof(linkstatus)) {
1193 printk(KERN_WARNING "%s: Unexpected size for linkstatus frame (%d bytes)\n",
1194 dev->name, len);
1195 break;
1196 }
1197
1198 err = hermes_bap_pread(hw, IRQ_BAP, &linkstatus, len,
1199 infofid, sizeof(info));
1200 if (err)
1201 break;
1202 newstatus = le16_to_cpu(linkstatus.linkstatus);
1203
1204 /* Symbol firmware uses "out of range" to signal that
1205 * the hostscan frame can be requested. */
1206 if (newstatus == HERMES_LINKSTATUS_AP_OUT_OF_RANGE &&
1207 priv->firmware_type == FIRMWARE_TYPE_SYMBOL &&
1208 priv->has_hostscan && priv->scan_inprogress) {
1209 hermes_inquire(hw, HERMES_INQ_HOSTSCAN_SYMBOL);
1210 break;
1211 }
1212
1213 connected = (newstatus == HERMES_LINKSTATUS_CONNECTED)
1214 || (newstatus == HERMES_LINKSTATUS_AP_CHANGE)
1215 || (newstatus == HERMES_LINKSTATUS_AP_IN_RANGE);
1216
1217 if (connected)
1218 netif_carrier_on(dev);
1219 else if (!ignore_disconnect)
1220 netif_carrier_off(dev);
1221
1222 if (newstatus != priv->last_linkstatus) {
1223 priv->last_linkstatus = newstatus;
1224 print_linkstatus(dev, newstatus);
1225 /* The info frame contains only one word which is the
1226 * status (see hermes.h). The status is pretty boring
1227 * in itself, that's why we export the new BSSID...
1228 * Jean II */
1229 schedule_work(&priv->wevent_work);
1230 }
1231 }
1232 break;
1233 case HERMES_INQ_SCAN:
1234 if (!priv->scan_inprogress && priv->bssid_fixed &&
1235 priv->firmware_type == FIRMWARE_TYPE_INTERSIL) {
1236 schedule_work(&priv->join_work);
1237 break;
1238 }
1239 /* fall through */
1240 case HERMES_INQ_HOSTSCAN:
1241 case HERMES_INQ_HOSTSCAN_SYMBOL: {
1242 /* Result of a scanning. Contains information about
1243 * cells in the vicinity - Jean II */
1244 union iwreq_data wrqu;
1245 unsigned char *buf;
1246
1247 /* Sanity check */
1248 if (len > 4096) {
1249 printk(KERN_WARNING "%s: Scan results too large (%d bytes)\n",
1250 dev->name, len);
1251 break;
1252 }
1253
1254 /* We are a strict producer. If the previous scan results
1255 * have not been consumed, we just have to drop this
1256 * frame. We can't remove the previous results ourselves,
1257 * that would be *very* racy... Jean II */
1258 if (priv->scan_result != NULL) {
1259 printk(KERN_WARNING "%s: Previous scan results not consumed, dropping info frame.\n", dev->name);
1260 break;
1261 }
1262
1263 /* Allocate buffer for results */
1264 buf = kmalloc(len, GFP_ATOMIC);
1265 if (buf == NULL)
1266 /* No memory, so can't printk()... */
1267 break;
1268
1269 /* Read scan data */
1270 err = hermes_bap_pread(hw, IRQ_BAP, (void *) buf, len,
1271 infofid, sizeof(info));
1272 if (err) {
1273 kfree(buf);
1274 break;
1275 }
1276
1277 #ifdef ORINOCO_DEBUG
1278 {
1279 int i;
1280 printk(KERN_DEBUG "Scan result [%02X", buf[0]);
1281 for(i = 1; i < (len * 2); i++)
1282 printk(":%02X", buf[i]);
1283 printk("]\n");
1284 }
1285 #endif /* ORINOCO_DEBUG */
1286
1287 /* Allow the clients to access the results */
1288 priv->scan_len = len;
1289 priv->scan_result = buf;
1290
1291 /* Send an empty event to user space.
1292 * We don't send the received data on the event because
1293 * it would require us to do complex transcoding, and
1294 * we want to minimise the work done in the irq handler
1295 * Use a request to extract the data - Jean II */
1296 wrqu.data.length = 0;
1297 wrqu.data.flags = 0;
1298 wireless_send_event(dev, SIOCGIWSCAN, &wrqu, NULL);
1299 }
1300 break;
1301 case HERMES_INQ_SEC_STAT_AGERE:
1302 /* Security status (Agere specific) */
1303 /* Ignore this frame for now */
1304 if (priv->firmware_type == FIRMWARE_TYPE_AGERE)
1305 break;
1306 /* fall through */
1307 default:
1308 printk(KERN_DEBUG "%s: Unknown information frame received: "
1309 "type 0x%04x, length %d\n", dev->name, type, len);
1310 /* We don't actually do anything about it */
1311 break;
1312 }
1313 }
1314
1315 static void __orinoco_ev_infdrop(struct net_device *dev, hermes_t *hw)
1316 {
1317 if (net_ratelimit())
1318 printk(KERN_DEBUG "%s: Information frame lost.\n", dev->name);
1319 }
1320
1321 /********************************************************************/
1322 /* Internal hardware control routines */
1323 /********************************************************************/
1324
1325 int __orinoco_up(struct net_device *dev)
1326 {
1327 struct orinoco_private *priv = netdev_priv(dev);
1328 struct hermes *hw = &priv->hw;
1329 int err;
1330
1331 netif_carrier_off(dev); /* just to make sure */
1332
1333 err = __orinoco_program_rids(dev);
1334 if (err) {
1335 printk(KERN_ERR "%s: Error %d configuring card\n",
1336 dev->name, err);
1337 return err;
1338 }
1339
1340 /* Fire things up again */
1341 hermes_set_irqmask(hw, ORINOCO_INTEN);
1342 err = hermes_enable_port(hw, 0);
1343 if (err) {
1344 printk(KERN_ERR "%s: Error %d enabling MAC port\n",
1345 dev->name, err);
1346 return err;
1347 }
1348
1349 netif_start_queue(dev);
1350
1351 return 0;
1352 }
1353
1354 int __orinoco_down(struct net_device *dev)
1355 {
1356 struct orinoco_private *priv = netdev_priv(dev);
1357 struct hermes *hw = &priv->hw;
1358 int err;
1359
1360 netif_stop_queue(dev);
1361
1362 if (! priv->hw_unavailable) {
1363 if (! priv->broken_disableport) {
1364 err = hermes_disable_port(hw, 0);
1365 if (err) {
1366 /* Some firmwares (e.g. Intersil 1.3.x) seem
1367 * to have problems disabling the port, oh
1368 * well, too bad. */
1369 printk(KERN_WARNING "%s: Error %d disabling MAC port\n",
1370 dev->name, err);
1371 priv->broken_disableport = 1;
1372 }
1373 }
1374 hermes_set_irqmask(hw, 0);
1375 hermes_write_regn(hw, EVACK, 0xffff);
1376 }
1377
1378 /* firmware will have to reassociate */
1379 netif_carrier_off(dev);
1380 priv->last_linkstatus = 0xffff;
1381
1382 return 0;
1383 }
1384
1385 int orinoco_reinit_firmware(struct net_device *dev)
1386 {
1387 struct orinoco_private *priv = netdev_priv(dev);
1388 struct hermes *hw = &priv->hw;
1389 int err;
1390
1391 err = hermes_init(hw);
1392 if (err)
1393 return err;
1394
1395 err = hermes_allocate(hw, priv->nicbuf_size, &priv->txfid);
1396 if (err == -EIO && priv->nicbuf_size > TX_NICBUF_SIZE_BUG) {
1397 /* Try workaround for old Symbol firmware bug */
1398 printk(KERN_WARNING "%s: firmware ALLOC bug detected "
1399 "(old Symbol firmware?). Trying to work around... ",
1400 dev->name);
1401
1402 priv->nicbuf_size = TX_NICBUF_SIZE_BUG;
1403 err = hermes_allocate(hw, priv->nicbuf_size, &priv->txfid);
1404 if (err)
1405 printk("failed!\n");
1406 else
1407 printk("ok.\n");
1408 }
1409
1410 return err;
1411 }
1412
1413 static int __orinoco_hw_set_bitrate(struct orinoco_private *priv)
1414 {
1415 hermes_t *hw = &priv->hw;
1416 int err = 0;
1417
1418 if (priv->bitratemode >= BITRATE_TABLE_SIZE) {
1419 printk(KERN_ERR "%s: BUG: Invalid bitrate mode %d\n",
1420 priv->ndev->name, priv->bitratemode);
1421 return -EINVAL;
1422 }
1423
1424 switch (priv->firmware_type) {
1425 case FIRMWARE_TYPE_AGERE:
1426 err = hermes_write_wordrec(hw, USER_BAP,
1427 HERMES_RID_CNFTXRATECONTROL,
1428 bitrate_table[priv->bitratemode].agere_txratectrl);
1429 break;
1430 case FIRMWARE_TYPE_INTERSIL:
1431 case FIRMWARE_TYPE_SYMBOL:
1432 err = hermes_write_wordrec(hw, USER_BAP,
1433 HERMES_RID_CNFTXRATECONTROL,
1434 bitrate_table[priv->bitratemode].intersil_txratectrl);
1435 break;
1436 default:
1437 BUG();
1438 }
1439
1440 return err;
1441 }
1442
1443 /* Set fixed AP address */
1444 static int __orinoco_hw_set_wap(struct orinoco_private *priv)
1445 {
1446 int roaming_flag;
1447 int err = 0;
1448 hermes_t *hw = &priv->hw;
1449
1450 switch (priv->firmware_type) {
1451 case FIRMWARE_TYPE_AGERE:
1452 /* not supported */
1453 break;
1454 case FIRMWARE_TYPE_INTERSIL:
1455 if (priv->bssid_fixed)
1456 roaming_flag = 2;
1457 else
1458 roaming_flag = 1;
1459
1460 err = hermes_write_wordrec(hw, USER_BAP,
1461 HERMES_RID_CNFROAMINGMODE,
1462 roaming_flag);
1463 break;
1464 case FIRMWARE_TYPE_SYMBOL:
1465 err = HERMES_WRITE_RECORD(hw, USER_BAP,
1466 HERMES_RID_CNFMANDATORYBSSID_SYMBOL,
1467 &priv->desired_bssid);
1468 break;
1469 }
1470 return err;
1471 }
1472
1473 /* Change the WEP keys and/or the current keys. Can be called
1474 * either from __orinoco_hw_setup_wep() or directly from
1475 * orinoco_ioctl_setiwencode(). In the later case the association
1476 * with the AP is not broken (if the firmware can handle it),
1477 * which is needed for 802.1x implementations. */
1478 static int __orinoco_hw_setup_wepkeys(struct orinoco_private *priv)
1479 {
1480 hermes_t *hw = &priv->hw;
1481 int err = 0;
1482
1483 switch (priv->firmware_type) {
1484 case FIRMWARE_TYPE_AGERE:
1485 err = HERMES_WRITE_RECORD(hw, USER_BAP,
1486 HERMES_RID_CNFWEPKEYS_AGERE,
1487 &priv->keys);
1488 if (err)
1489 return err;
1490 err = hermes_write_wordrec(hw, USER_BAP,
1491 HERMES_RID_CNFTXKEY_AGERE,
1492 priv->tx_key);
1493 if (err)
1494 return err;
1495 break;
1496 case FIRMWARE_TYPE_INTERSIL:
1497 case FIRMWARE_TYPE_SYMBOL:
1498 {
1499 int keylen;
1500 int i;
1501
1502 /* Force uniform key length to work around firmware bugs */
1503 keylen = le16_to_cpu(priv->keys[priv->tx_key].len);
1504
1505 if (keylen > LARGE_KEY_SIZE) {
1506 printk(KERN_ERR "%s: BUG: Key %d has oversize length %d.\n",
1507 priv->ndev->name, priv->tx_key, keylen);
1508 return -E2BIG;
1509 }
1510
1511 /* Write all 4 keys */
1512 for(i = 0; i < ORINOCO_MAX_KEYS; i++) {
1513 err = hermes_write_ltv(hw, USER_BAP,
1514 HERMES_RID_CNFDEFAULTKEY0 + i,
1515 HERMES_BYTES_TO_RECLEN(keylen),
1516 priv->keys[i].data);
1517 if (err)
1518 return err;
1519 }
1520
1521 /* Write the index of the key used in transmission */
1522 err = hermes_write_wordrec(hw, USER_BAP,
1523 HERMES_RID_CNFWEPDEFAULTKEYID,
1524 priv->tx_key);
1525 if (err)
1526 return err;
1527 }
1528 break;
1529 }
1530
1531 return 0;
1532 }
1533
1534 static int __orinoco_hw_setup_wep(struct orinoco_private *priv)
1535 {
1536 hermes_t *hw = &priv->hw;
1537 int err = 0;
1538 int master_wep_flag;
1539 int auth_flag;
1540
1541 if (priv->wep_on)
1542 __orinoco_hw_setup_wepkeys(priv);
1543
1544 if (priv->wep_restrict)
1545 auth_flag = HERMES_AUTH_SHARED_KEY;
1546 else
1547 auth_flag = HERMES_AUTH_OPEN;
1548
1549 switch (priv->firmware_type) {
1550 case FIRMWARE_TYPE_AGERE: /* Agere style WEP */
1551 if (priv->wep_on) {
1552 /* Enable the shared-key authentication. */
1553 err = hermes_write_wordrec(hw, USER_BAP,
1554 HERMES_RID_CNFAUTHENTICATION_AGERE,
1555 auth_flag);
1556 }
1557 err = hermes_write_wordrec(hw, USER_BAP,
1558 HERMES_RID_CNFWEPENABLED_AGERE,
1559 priv->wep_on);
1560 if (err)
1561 return err;
1562 break;
1563
1564 case FIRMWARE_TYPE_INTERSIL: /* Intersil style WEP */
1565 case FIRMWARE_TYPE_SYMBOL: /* Symbol style WEP */
1566 if (priv->wep_on) {
1567 if (priv->wep_restrict ||
1568 (priv->firmware_type == FIRMWARE_TYPE_SYMBOL))
1569 master_wep_flag = HERMES_WEP_PRIVACY_INVOKED |
1570 HERMES_WEP_EXCL_UNENCRYPTED;
1571 else
1572 master_wep_flag = HERMES_WEP_PRIVACY_INVOKED;
1573
1574 err = hermes_write_wordrec(hw, USER_BAP,
1575 HERMES_RID_CNFAUTHENTICATION,
1576 auth_flag);
1577 if (err)
1578 return err;
1579 } else
1580 master_wep_flag = 0;
1581
1582 if (priv->iw_mode == IW_MODE_MONITOR)
1583 master_wep_flag |= HERMES_WEP_HOST_DECRYPT;
1584
1585 /* Master WEP setting : on/off */
1586 err = hermes_write_wordrec(hw, USER_BAP,
1587 HERMES_RID_CNFWEPFLAGS_INTERSIL,
1588 master_wep_flag);
1589 if (err)
1590 return err;
1591
1592 break;
1593 }
1594
1595 return 0;
1596 }
1597
1598 static int __orinoco_program_rids(struct net_device *dev)
1599 {
1600 struct orinoco_private *priv = netdev_priv(dev);
1601 hermes_t *hw = &priv->hw;
1602 int err;
1603 struct hermes_idstring idbuf;
1604
1605 /* Set the MAC address */
1606 err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFOWNMACADDR,
1607 HERMES_BYTES_TO_RECLEN(ETH_ALEN), dev->dev_addr);
1608 if (err) {
1609 printk(KERN_ERR "%s: Error %d setting MAC address\n",
1610 dev->name, err);
1611 return err;
1612 }
1613
1614 /* Set up the link mode */
1615 err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFPORTTYPE,
1616 priv->port_type);
1617 if (err) {
1618 printk(KERN_ERR "%s: Error %d setting port type\n",
1619 dev->name, err);
1620 return err;
1621 }
1622 /* Set the channel/frequency */
1623 if (priv->channel != 0 && priv->iw_mode != IW_MODE_INFRA) {
1624 err = hermes_write_wordrec(hw, USER_BAP,
1625 HERMES_RID_CNFOWNCHANNEL,
1626 priv->channel);
1627 if (err) {
1628 printk(KERN_ERR "%s: Error %d setting channel %d\n",
1629 dev->name, err, priv->channel);
1630 return err;
1631 }
1632 }
1633
1634 if (priv->has_ibss) {
1635 u16 createibss;
1636
1637 if ((strlen(priv->desired_essid) == 0) && (priv->createibss)) {
1638 printk(KERN_WARNING "%s: This firmware requires an "
1639 "ESSID in IBSS-Ad-Hoc mode.\n", dev->name);
1640 /* With wvlan_cs, in this case, we would crash.
1641 * hopefully, this driver will behave better...
1642 * Jean II */
1643 createibss = 0;
1644 } else {
1645 createibss = priv->createibss;
1646 }
1647
1648 err = hermes_write_wordrec(hw, USER_BAP,
1649 HERMES_RID_CNFCREATEIBSS,
1650 createibss);
1651 if (err) {
1652 printk(KERN_ERR "%s: Error %d setting CREATEIBSS\n",
1653 dev->name, err);
1654 return err;
1655 }
1656 }
1657
1658 /* Set the desired BSSID */
1659 err = __orinoco_hw_set_wap(priv);
1660 if (err) {
1661 printk(KERN_ERR "%s: Error %d setting AP address\n",
1662 dev->name, err);
1663 return err;
1664 }
1665 /* Set the desired ESSID */
1666 idbuf.len = cpu_to_le16(strlen(priv->desired_essid));
1667 memcpy(&idbuf.val, priv->desired_essid, sizeof(idbuf.val));
1668 /* WinXP wants partner to configure OWNSSID even in IBSS mode. (jimc) */
1669 err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFOWNSSID,
1670 HERMES_BYTES_TO_RECLEN(strlen(priv->desired_essid)+2),
1671 &idbuf);
1672 if (err) {
1673 printk(KERN_ERR "%s: Error %d setting OWNSSID\n",
1674 dev->name, err);
1675 return err;
1676 }
1677 err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFDESIREDSSID,
1678 HERMES_BYTES_TO_RECLEN(strlen(priv->desired_essid)+2),
1679 &idbuf);
1680 if (err) {
1681 printk(KERN_ERR "%s: Error %d setting DESIREDSSID\n",
1682 dev->name, err);
1683 return err;
1684 }
1685
1686 /* Set the station name */
1687 idbuf.len = cpu_to_le16(strlen(priv->nick));
1688 memcpy(&idbuf.val, priv->nick, sizeof(idbuf.val));
1689 err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFOWNNAME,
1690 HERMES_BYTES_TO_RECLEN(strlen(priv->nick)+2),
1691 &idbuf);
1692 if (err) {
1693 printk(KERN_ERR "%s: Error %d setting nickname\n",
1694 dev->name, err);
1695 return err;
1696 }
1697
1698 /* Set AP density */
1699 if (priv->has_sensitivity) {
1700 err = hermes_write_wordrec(hw, USER_BAP,
1701 HERMES_RID_CNFSYSTEMSCALE,
1702 priv->ap_density);
1703 if (err) {
1704 printk(KERN_WARNING "%s: Error %d setting SYSTEMSCALE. "
1705 "Disabling sensitivity control\n",
1706 dev->name, err);
1707
1708 priv->has_sensitivity = 0;
1709 }
1710 }
1711
1712 /* Set RTS threshold */
1713 err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFRTSTHRESHOLD,
1714 priv->rts_thresh);
1715 if (err) {
1716 printk(KERN_ERR "%s: Error %d setting RTS threshold\n",
1717 dev->name, err);
1718 return err;
1719 }
1720
1721 /* Set fragmentation threshold or MWO robustness */
1722 if (priv->has_mwo)
1723 err = hermes_write_wordrec(hw, USER_BAP,
1724 HERMES_RID_CNFMWOROBUST_AGERE,
1725 priv->mwo_robust);
1726 else
1727 err = hermes_write_wordrec(hw, USER_BAP,
1728 HERMES_RID_CNFFRAGMENTATIONTHRESHOLD,
1729 priv->frag_thresh);
1730 if (err) {
1731 printk(KERN_ERR "%s: Error %d setting fragmentation\n",
1732 dev->name, err);
1733 return err;
1734 }
1735
1736 /* Set bitrate */
1737 err = __orinoco_hw_set_bitrate(priv);
1738 if (err) {
1739 printk(KERN_ERR "%s: Error %d setting bitrate\n",
1740 dev->name, err);
1741 return err;
1742 }
1743
1744 /* Set power management */
1745 if (priv->has_pm) {
1746 err = hermes_write_wordrec(hw, USER_BAP,
1747 HERMES_RID_CNFPMENABLED,
1748 priv->pm_on);
1749 if (err) {
1750 printk(KERN_ERR "%s: Error %d setting up PM\n",
1751 dev->name, err);
1752 return err;
1753 }
1754
1755 err = hermes_write_wordrec(hw, USER_BAP,
1756 HERMES_RID_CNFMULTICASTRECEIVE,
1757 priv->pm_mcast);
1758 if (err) {
1759 printk(KERN_ERR "%s: Error %d setting up PM\n",
1760 dev->name, err);
1761 return err;
1762 }
1763 err = hermes_write_wordrec(hw, USER_BAP,
1764 HERMES_RID_CNFMAXSLEEPDURATION,
1765 priv->pm_period);
1766 if (err) {
1767 printk(KERN_ERR "%s: Error %d setting up PM\n",
1768 dev->name, err);
1769 return err;
1770 }
1771 err = hermes_write_wordrec(hw, USER_BAP,
1772 HERMES_RID_CNFPMHOLDOVERDURATION,
1773 priv->pm_timeout);
1774 if (err) {
1775 printk(KERN_ERR "%s: Error %d setting up PM\n",
1776 dev->name, err);
1777 return err;
1778 }
1779 }
1780
1781 /* Set preamble - only for Symbol so far... */
1782 if (priv->has_preamble) {
1783 err = hermes_write_wordrec(hw, USER_BAP,
1784 HERMES_RID_CNFPREAMBLE_SYMBOL,
1785 priv->preamble);
1786 if (err) {
1787 printk(KERN_ERR "%s: Error %d setting preamble\n",
1788 dev->name, err);
1789 return err;
1790 }
1791 }
1792
1793 /* Set up encryption */
1794 if (priv->has_wep) {
1795 err = __orinoco_hw_setup_wep(priv);
1796 if (err) {
1797 printk(KERN_ERR "%s: Error %d activating WEP\n",
1798 dev->name, err);
1799 return err;
1800 }
1801 }
1802
1803 if (priv->iw_mode == IW_MODE_MONITOR) {
1804 /* Enable monitor mode */
1805 dev->type = ARPHRD_IEEE80211;
1806 err = hermes_docmd_wait(hw, HERMES_CMD_TEST |
1807 HERMES_TEST_MONITOR, 0, NULL);
1808 } else {
1809 /* Disable monitor mode */
1810 dev->type = ARPHRD_ETHER;
1811 err = hermes_docmd_wait(hw, HERMES_CMD_TEST |
1812 HERMES_TEST_STOP, 0, NULL);
1813 }
1814 if (err)
1815 return err;
1816
1817 /* Set promiscuity / multicast*/
1818 priv->promiscuous = 0;
1819 priv->mc_count = 0;
1820 __orinoco_set_multicast_list(dev); /* FIXME: what about the xmit_lock */
1821
1822 return 0;
1823 }
1824
1825 /* FIXME: return int? */
1826 static void
1827 __orinoco_set_multicast_list(struct net_device *dev)
1828 {
1829 struct orinoco_private *priv = netdev_priv(dev);
1830 hermes_t *hw = &priv->hw;
1831 int err = 0;
1832 int promisc, mc_count;
1833
1834 /* The Hermes doesn't seem to have an allmulti mode, so we go
1835 * into promiscuous mode and let the upper levels deal. */
1836 if ( (dev->flags & IFF_PROMISC) || (dev->flags & IFF_ALLMULTI) ||
1837 (dev->mc_count > MAX_MULTICAST(priv)) ) {
1838 promisc = 1;
1839 mc_count = 0;
1840 } else {
1841 promisc = 0;
1842 mc_count = dev->mc_count;
1843 }
1844
1845 if (promisc != priv->promiscuous) {
1846 err = hermes_write_wordrec(hw, USER_BAP,
1847 HERMES_RID_CNFPROMISCUOUSMODE,
1848 promisc);
1849 if (err) {
1850 printk(KERN_ERR "%s: Error %d setting PROMISCUOUSMODE to 1.\n",
1851 dev->name, err);
1852 } else
1853 priv->promiscuous = promisc;
1854 }
1855
1856 if (! promisc && (mc_count || priv->mc_count) ) {
1857 struct dev_mc_list *p = dev->mc_list;
1858 struct hermes_multicast mclist;
1859 int i;
1860
1861 for (i = 0; i < mc_count; i++) {
1862 /* paranoia: is list shorter than mc_count? */
1863 BUG_ON(! p);
1864 /* paranoia: bad address size in list? */
1865 BUG_ON(p->dmi_addrlen != ETH_ALEN);
1866
1867 memcpy(mclist.addr[i], p->dmi_addr, ETH_ALEN);
1868 p = p->next;
1869 }
1870
1871 if (p)
1872 printk(KERN_WARNING "%s: Multicast list is "
1873 "longer than mc_count\n", dev->name);
1874
1875 err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFGROUPADDRESSES,
1876 HERMES_BYTES_TO_RECLEN(priv->mc_count * ETH_ALEN),
1877 &mclist);
1878 if (err)
1879 printk(KERN_ERR "%s: Error %d setting multicast list.\n",
1880 dev->name, err);
1881 else
1882 priv->mc_count = mc_count;
1883 }
1884
1885 /* Since we can set the promiscuous flag when it wasn't asked
1886 for, make sure the net_device knows about it. */
1887 if (priv->promiscuous)
1888 dev->flags |= IFF_PROMISC;
1889 else
1890 dev->flags &= ~IFF_PROMISC;
1891 }
1892
1893 /* This must be called from user context, without locks held - use
1894 * schedule_work() */
1895 static void orinoco_reset(struct net_device *dev)
1896 {
1897 struct orinoco_private *priv = netdev_priv(dev);
1898 struct hermes *hw = &priv->hw;
1899 int err;
1900 unsigned long flags;
1901
1902 if (orinoco_lock(priv, &flags) != 0)
1903 /* When the hardware becomes available again, whatever
1904 * detects that is responsible for re-initializing
1905 * it. So no need for anything further */
1906 return;
1907
1908 netif_stop_queue(dev);
1909
1910 /* Shut off interrupts. Depending on what state the hardware
1911 * is in, this might not work, but we'll try anyway */
1912 hermes_set_irqmask(hw, 0);
1913 hermes_write_regn(hw, EVACK, 0xffff);
1914
1915 priv->hw_unavailable++;
1916 priv->last_linkstatus = 0xffff; /* firmware will have to reassociate */
1917 netif_carrier_off(dev);
1918
1919 orinoco_unlock(priv, &flags);
1920
1921 /* Scanning support: Cleanup of driver struct */
1922 kfree(priv->scan_result);
1923 priv->scan_result = NULL;
1924 priv->scan_inprogress = 0;
1925
1926 if (priv->hard_reset) {
1927 err = (*priv->hard_reset)(priv);
1928 if (err) {
1929 printk(KERN_ERR "%s: orinoco_reset: Error %d "
1930 "performing hard reset\n", dev->name, err);
1931 goto disable;
1932 }
1933 }
1934
1935 err = orinoco_reinit_firmware(dev);
1936 if (err) {
1937 printk(KERN_ERR "%s: orinoco_reset: Error %d re-initializing firmware\n",
1938 dev->name, err);
1939 goto disable;
1940 }
1941
1942 spin_lock_irq(&priv->lock); /* This has to be called from user context */
1943
1944 priv->hw_unavailable--;
1945
1946 /* priv->open or priv->hw_unavailable might have changed while
1947 * we dropped the lock */
1948 if (priv->open && (! priv->hw_unavailable)) {
1949 err = __orinoco_up(dev);
1950 if (err) {
1951 printk(KERN_ERR "%s: orinoco_reset: Error %d reenabling card\n",
1952 dev->name, err);
1953 } else
1954 dev->trans_start = jiffies;
1955 }
1956
1957 spin_unlock_irq(&priv->lock);
1958
1959 return;
1960 disable:
1961 hermes_set_irqmask(hw, 0);
1962 netif_device_detach(dev);
1963 printk(KERN_ERR "%s: Device has been disabled!\n", dev->name);
1964 }
1965
1966 /********************************************************************/
1967 /* Interrupt handler */
1968 /********************************************************************/
1969
1970 static void __orinoco_ev_tick(struct net_device *dev, hermes_t *hw)
1971 {
1972 printk(KERN_DEBUG "%s: TICK\n", dev->name);
1973 }
1974
1975 static void __orinoco_ev_wterr(struct net_device *dev, hermes_t *hw)
1976 {
1977 /* This seems to happen a fair bit under load, but ignoring it
1978 seems to work fine...*/
1979 printk(KERN_DEBUG "%s: MAC controller error (WTERR). Ignoring.\n",
1980 dev->name);
1981 }
1982
1983 irqreturn_t orinoco_interrupt(int irq, void *dev_id, struct pt_regs *regs)
1984 {
1985 struct net_device *dev = (struct net_device *)dev_id;
1986 struct orinoco_private *priv = netdev_priv(dev);
1987 hermes_t *hw = &priv->hw;
1988 int count = MAX_IRQLOOPS_PER_IRQ;
1989 u16 evstat, events;
1990 /* These are used to detect a runaway interrupt situation */
1991 /* If we get more than MAX_IRQLOOPS_PER_JIFFY iterations in a jiffy,
1992 * we panic and shut down the hardware */
1993 static int last_irq_jiffy = 0; /* jiffies value the last time
1994 * we were called */
1995 static int loops_this_jiffy = 0;
1996 unsigned long flags;
1997
1998 if (orinoco_lock(priv, &flags) != 0) {
1999 /* If hw is unavailable - we don't know if the irq was
2000 * for us or not */
2001 return IRQ_HANDLED;
2002 }
2003
2004 evstat = hermes_read_regn(hw, EVSTAT);
2005 events = evstat & hw->inten;
2006 if (! events) {
2007 orinoco_unlock(priv, &flags);
2008 return IRQ_NONE;
2009 }
2010
2011 if (jiffies != last_irq_jiffy)
2012 loops_this_jiffy = 0;
2013 last_irq_jiffy = jiffies;
2014
2015 while (events && count--) {
2016 if (++loops_this_jiffy > MAX_IRQLOOPS_PER_JIFFY) {
2017 printk(KERN_WARNING "%s: IRQ handler is looping too "
2018 "much! Resetting.\n", dev->name);
2019 /* Disable interrupts for now */
2020 hermes_set_irqmask(hw, 0);
2021 schedule_work(&priv->reset_work);
2022 break;
2023 }
2024
2025 /* Check the card hasn't been removed */
2026 if (! hermes_present(hw)) {
2027 DEBUG(0, "orinoco_interrupt(): card removed\n");
2028 break;
2029 }
2030
2031 if (events & HERMES_EV_TICK)
2032 __orinoco_ev_tick(dev, hw);
2033 if (events & HERMES_EV_WTERR)
2034 __orinoco_ev_wterr(dev, hw);
2035 if (events & HERMES_EV_INFDROP)
2036 __orinoco_ev_infdrop(dev, hw);
2037 if (events & HERMES_EV_INFO)
2038 __orinoco_ev_info(dev, hw);
2039 if (events & HERMES_EV_RX)
2040 __orinoco_ev_rx(dev, hw);
2041 if (events & HERMES_EV_TXEXC)
2042 __orinoco_ev_txexc(dev, hw);
2043 if (events & HERMES_EV_TX)
2044 __orinoco_ev_tx(dev, hw);
2045 if (events & HERMES_EV_ALLOC)
2046 __orinoco_ev_alloc(dev, hw);
2047
2048 hermes_write_regn(hw, EVACK, evstat);
2049
2050 evstat = hermes_read_regn(hw, EVSTAT);
2051 events = evstat & hw->inten;
2052 };
2053
2054 orinoco_unlock(priv, &flags);
2055 return IRQ_HANDLED;
2056 }
2057
2058 /********************************************************************/
2059 /* Initialization */
2060 /********************************************************************/
2061
2062 struct comp_id {
2063 u16 id, variant, major, minor;
2064 } __attribute__ ((packed));
2065
2066 static inline fwtype_t determine_firmware_type(struct comp_id *nic_id)
2067 {
2068 if (nic_id->id < 0x8000)
2069 return FIRMWARE_TYPE_AGERE;
2070 else if (nic_id->id == 0x8000 && nic_id->major == 0)
2071 return FIRMWARE_TYPE_SYMBOL;
2072 else
2073 return FIRMWARE_TYPE_INTERSIL;
2074 }
2075
2076 /* Set priv->firmware type, determine firmware properties */
2077 static int determine_firmware(struct net_device *dev)
2078 {
2079 struct orinoco_private *priv = netdev_priv(dev);
2080 hermes_t *hw = &priv->hw;
2081 int err;
2082 struct comp_id nic_id, sta_id;
2083 unsigned int firmver;
2084 char tmp[SYMBOL_MAX_VER_LEN+1];
2085
2086 /* Get the hardware version */
2087 err = HERMES_READ_RECORD(hw, USER_BAP, HERMES_RID_NICID, &nic_id);
2088 if (err) {
2089 printk(KERN_ERR "%s: Cannot read hardware identity: error %d\n",
2090 dev->name, err);
2091 return err;
2092 }
2093
2094 le16_to_cpus(&nic_id.id);
2095 le16_to_cpus(&nic_id.variant);
2096 le16_to_cpus(&nic_id.major);
2097 le16_to_cpus(&nic_id.minor);
2098 printk(KERN_DEBUG "%s: Hardware identity %04x:%04x:%04x:%04x\n",
2099 dev->name, nic_id.id, nic_id.variant,
2100 nic_id.major, nic_id.minor);
2101
2102 priv->firmware_type = determine_firmware_type(&nic_id);
2103
2104 /* Get the firmware version */
2105 err = HERMES_READ_RECORD(hw, USER_BAP, HERMES_RID_STAID, &sta_id);
2106 if (err) {
2107 printk(KERN_ERR "%s: Cannot read station identity: error %d\n",
2108 dev->name, err);
2109 return err;
2110 }
2111
2112 le16_to_cpus(&sta_id.id);
2113 le16_to_cpus(&sta_id.variant);
2114 le16_to_cpus(&sta_id.major);
2115 le16_to_cpus(&sta_id.minor);
2116 printk(KERN_DEBUG "%s: Station identity %04x:%04x:%04x:%04x\n",
2117 dev->name, sta_id.id, sta_id.variant,
2118 sta_id.major, sta_id.minor);
2119
2120 switch (sta_id.id) {
2121 case 0x15:
2122 printk(KERN_ERR "%s: Primary firmware is active\n",
2123 dev->name);
2124 return -ENODEV;
2125 case 0x14b:
2126 printk(KERN_ERR "%s: Tertiary firmware is active\n",
2127 dev->name);
2128 return -ENODEV;
2129 case 0x1f: /* Intersil, Agere, Symbol Spectrum24 */
2130 case 0x21: /* Symbol Spectrum24 Trilogy */
2131 break;
2132 default:
2133 printk(KERN_NOTICE "%s: Unknown station ID, please report\n",
2134 dev->name);
2135 break;
2136 }
2137
2138 /* Default capabilities */
2139 priv->has_sensitivity = 1;
2140 priv->has_mwo = 0;
2141 priv->has_preamble = 0;
2142 priv->has_port3 = 1;
2143 priv->has_ibss = 1;
2144 priv->has_wep = 0;
2145 priv->has_big_wep = 0;
2146
2147 /* Determine capabilities from the firmware version */
2148 switch (priv->firmware_type) {
2149 case FIRMWARE_TYPE_AGERE:
2150 /* Lucent Wavelan IEEE, Lucent Orinoco, Cabletron RoamAbout,
2151 ELSA, Melco, HP, IBM, Dell 1150, Compaq 110/210 */
2152 snprintf(priv->fw_name, sizeof(priv->fw_name) - 1,
2153 "Lucent/Agere %d.%02d", sta_id.major, sta_id.minor);
2154
2155 firmver = ((unsigned long)sta_id.major << 16) | sta_id.minor;
2156
2157 priv->has_ibss = (firmver >= 0x60006);
2158 priv->has_wep = (firmver >= 0x40020);
2159 priv->has_big_wep = 1; /* FIXME: this is wrong - how do we tell
2160 Gold cards from the others? */
2161 priv->has_mwo = (firmver >= 0x60000);
2162 priv->has_pm = (firmver >= 0x40020); /* Don't work in 7.52 ? */
2163 priv->ibss_port = 1;
2164 priv->has_hostscan = (firmver >= 0x8000a);
2165 priv->broken_monitor = (firmver >= 0x80000);
2166
2167 /* Tested with Agere firmware :
2168 * 1.16 ; 4.08 ; 4.52 ; 6.04 ; 6.16 ; 7.28 => Jean II
2169 * Tested CableTron firmware : 4.32 => Anton */
2170 break;
2171 case FIRMWARE_TYPE_SYMBOL:
2172 /* Symbol , 3Com AirConnect, Intel, Ericsson WLAN */
2173 /* Intel MAC : 00:02:B3:* */
2174 /* 3Com MAC : 00:50:DA:* */
2175 memset(tmp, 0, sizeof(tmp));
2176 /* Get the Symbol firmware version */
2177 err = hermes_read_ltv(hw, USER_BAP,
2178 HERMES_RID_SECONDARYVERSION_SYMBOL,
2179 SYMBOL_MAX_VER_LEN, NULL, &tmp);
2180 if (err) {
2181 printk(KERN_WARNING
2182 "%s: Error %d reading Symbol firmware info. Wildly guessing capabilities...\n",
2183 dev->name, err);
2184 firmver = 0;
2185 tmp[0] = '\0';
2186 } else {
2187 /* The firmware revision is a string, the format is
2188 * something like : "V2.20-01".
2189 * Quick and dirty parsing... - Jean II
2190 */
2191 firmver = ((tmp[1] - '0') << 16) | ((tmp[3] - '0') << 12)
2192 | ((tmp[4] - '0') << 8) | ((tmp[6] - '0') << 4)
2193 | (tmp[7] - '0');
2194
2195 tmp[SYMBOL_MAX_VER_LEN] = '\0';
2196 }
2197
2198 snprintf(priv->fw_name, sizeof(priv->fw_name) - 1,
2199 "Symbol %s", tmp);
2200
2201 priv->has_ibss = (firmver >= 0x20000);
2202 priv->has_wep = (firmver >= 0x15012);
2203 priv->has_big_wep = (firmver >= 0x20000);
2204 priv->has_pm = (firmver >= 0x20000 && firmver < 0x22000) ||
2205 (firmver >= 0x29000 && firmver < 0x30000) ||
2206 firmver >= 0x31000;
2207 priv->has_preamble = (firmver >= 0x20000);
2208 priv->ibss_port = 4;
2209 priv->broken_disableport = (firmver == 0x25013) ||
2210 (firmver >= 0x30000 && firmver <= 0x31000);
2211 priv->has_hostscan = (firmver >= 0x31001) ||
2212 (firmver >= 0x29057 && firmver < 0x30000);
2213 /* Tested with Intel firmware : 0x20015 => Jean II */
2214 /* Tested with 3Com firmware : 0x15012 & 0x22001 => Jean II */
2215 break;
2216 case FIRMWARE_TYPE_INTERSIL:
2217 /* D-Link, Linksys, Adtron, ZoomAir, and many others...
2218 * Samsung, Compaq 100/200 and Proxim are slightly
2219 * different and less well tested */
2220 /* D-Link MAC : 00:40:05:* */
2221 /* Addtron MAC : 00:90:D1:* */
2222 snprintf(priv->fw_name, sizeof(priv->fw_name) - 1,
2223 "Intersil %d.%d.%d", sta_id.major, sta_id.minor,
2224 sta_id.variant);
2225
2226 firmver = ((unsigned long)sta_id.major << 16) |
2227 ((unsigned long)sta_id.minor << 8) | sta_id.variant;
2228
2229 priv->has_ibss = (firmver >= 0x000700); /* FIXME */
2230 priv->has_big_wep = priv->has_wep = (firmver >= 0x000800);
2231 priv->has_pm = (firmver >= 0x000700);
2232 priv->has_hostscan = (firmver >= 0x010301);
2233
2234 if (firmver >= 0x000800)
2235 priv->ibss_port = 0;
2236 else {
2237 printk(KERN_NOTICE "%s: Intersil firmware earlier "
2238 "than v0.8.x - several features not supported\n",
2239 dev->name);
2240 priv->ibss_port = 1;
2241 }
2242 break;
2243 }
2244 printk(KERN_DEBUG "%s: Firmware determined as %s\n", dev->name,
2245 priv->fw_name);
2246
2247 return 0;
2248 }
2249
2250 static int orinoco_init(struct net_device *dev)
2251 {
2252 struct orinoco_private *priv = netdev_priv(dev);
2253 hermes_t *hw = &priv->hw;
2254 int err = 0;
2255 struct hermes_idstring nickbuf;
2256 u16 reclen;
2257 int len;
2258
2259 TRACE_ENTER(dev->name);
2260
2261 /* No need to lock, the hw_unavailable flag is already set in
2262 * alloc_orinocodev() */
2263 priv->nicbuf_size = IEEE80211_FRAME_LEN + ETH_HLEN;
2264
2265 /* Initialize the firmware */
2266 err = orinoco_reinit_firmware(dev);
2267 if (err != 0) {
2268 printk(KERN_ERR "%s: failed to initialize firmware (err = %d)\n",
2269 dev->name, err);
2270 goto out;
2271 }
2272
2273 err = determine_firmware(dev);
2274 if (err != 0) {
2275 printk(KERN_ERR "%s: Incompatible firmware, aborting\n",
2276 dev->name);
2277 goto out;
2278 }
2279
2280 if (priv->has_port3)
2281 printk(KERN_DEBUG "%s: Ad-hoc demo mode supported\n", dev->name);
2282 if (priv->has_ibss)
2283 printk(KERN_DEBUG "%s: IEEE standard IBSS ad-hoc mode supported\n",
2284 dev->name);
2285 if (priv->has_wep) {
2286 printk(KERN_DEBUG "%s: WEP supported, ", dev->name);
2287 if (priv->has_big_wep)
2288 printk("104-bit key\n");
2289 else
2290 printk("40-bit key\n");
2291 }
2292
2293 /* Get the MAC address */
2294 err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CNFOWNMACADDR,
2295 ETH_ALEN, NULL, dev->dev_addr);
2296 if (err) {
2297 printk(KERN_WARNING "%s: failed to read MAC address!\n",
2298 dev->name);
2299 goto out;
2300 }
2301
2302 printk(KERN_DEBUG "%s: MAC address %02X:%02X:%02X:%02X:%02X:%02X\n",
2303 dev->name, dev->dev_addr[0], dev->dev_addr[1],
2304 dev->dev_addr[2], dev->dev_addr[3], dev->dev_addr[4],
2305 dev->dev_addr[5]);
2306
2307 /* Get the station name */
2308 err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CNFOWNNAME,
2309 sizeof(nickbuf), &reclen, &nickbuf);
2310 if (err) {
2311 printk(KERN_ERR "%s: failed to read station name\n",
2312 dev->name);
2313 goto out;
2314 }
2315 if (nickbuf.len)
2316 len = min(IW_ESSID_MAX_SIZE, (int)le16_to_cpu(nickbuf.len));
2317 else
2318 len = min(IW_ESSID_MAX_SIZE, 2 * reclen);
2319 memcpy(priv->nick, &nickbuf.val, len);
2320 priv->nick[len] = '\0';
2321
2322 printk(KERN_DEBUG "%s: Station name \"%s\"\n", dev->name, priv->nick);
2323
2324 /* Get allowed channels */
2325 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CHANNELLIST,
2326 &priv->channel_mask);
2327 if (err) {
2328 printk(KERN_ERR "%s: failed to read channel list!\n",
2329 dev->name);
2330 goto out;
2331 }
2332
2333 /* Get initial AP density */
2334 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFSYSTEMSCALE,
2335 &priv->ap_density);
2336 if (err || priv->ap_density < 1 || priv->ap_density > 3) {
2337 priv->has_sensitivity = 0;
2338 }
2339
2340 /* Get initial RTS threshold */
2341 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFRTSTHRESHOLD,
2342 &priv->rts_thresh);
2343 if (err) {
2344 printk(KERN_ERR "%s: failed to read RTS threshold!\n",
2345 dev->name);
2346 goto out;
2347 }
2348
2349 /* Get initial fragmentation settings */
2350 if (priv->has_mwo)
2351 err = hermes_read_wordrec(hw, USER_BAP,
2352 HERMES_RID_CNFMWOROBUST_AGERE,
2353 &priv->mwo_robust);
2354 else
2355 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFFRAGMENTATIONTHRESHOLD,
2356 &priv->frag_thresh);
2357 if (err) {
2358 printk(KERN_ERR "%s: failed to read fragmentation settings!\n",
2359 dev->name);
2360 goto out;
2361 }
2362
2363 /* Power management setup */
2364 if (priv->has_pm) {
2365 priv->pm_on = 0;
2366 priv->pm_mcast = 1;
2367 err = hermes_read_wordrec(hw, USER_BAP,
2368 HERMES_RID_CNFMAXSLEEPDURATION,
2369 &priv->pm_period);
2370 if (err) {
2371 printk(KERN_ERR "%s: failed to read power management period!\n",
2372 dev->name);
2373 goto out;
2374 }
2375 err = hermes_read_wordrec(hw, USER_BAP,
2376 HERMES_RID_CNFPMHOLDOVERDURATION,
2377 &priv->pm_timeout);
2378 if (err) {
2379 printk(KERN_ERR "%s: failed to read power management timeout!\n",
2380 dev->name);
2381 goto out;
2382 }
2383 }
2384
2385 /* Preamble setup */
2386 if (priv->has_preamble) {
2387 err = hermes_read_wordrec(hw, USER_BAP,
2388 HERMES_RID_CNFPREAMBLE_SYMBOL,
2389 &priv->preamble);
2390 if (err)
2391 goto out;
2392 }
2393
2394 /* Set up the default configuration */
2395 priv->iw_mode = IW_MODE_INFRA;
2396 /* By default use IEEE/IBSS ad-hoc mode if we have it */
2397 priv->prefer_port3 = priv->has_port3 && (! priv->has_ibss);
2398 set_port_type(priv);
2399 priv->channel = 0; /* use firmware default */
2400
2401 priv->promiscuous = 0;
2402 priv->wep_on = 0;
2403 priv->tx_key = 0;
2404
2405 /* Make the hardware available, as long as it hasn't been
2406 * removed elsewhere (e.g. by PCMCIA hot unplug) */
2407 spin_lock_irq(&priv->lock);
2408 priv->hw_unavailable--;
2409 spin_unlock_irq(&priv->lock);
2410
2411 printk(KERN_DEBUG "%s: ready\n", dev->name);
2412
2413 out:
2414 TRACE_EXIT(dev->name);
2415 return err;
2416 }
2417
2418 struct net_device *alloc_orinocodev(int sizeof_card,
2419 int (*hard_reset)(struct orinoco_private *))
2420 {
2421 struct net_device *dev;
2422 struct orinoco_private *priv;
2423
2424 dev = alloc_etherdev(sizeof(struct orinoco_private) + sizeof_card);
2425 if (! dev)
2426 return NULL;
2427 priv = netdev_priv(dev);
2428 priv->ndev = dev;
2429 if (sizeof_card)
2430 priv->card = (void *)((unsigned long)priv
2431 + sizeof(struct orinoco_private));
2432 else
2433 priv->card = NULL;
2434
2435 /* Setup / override net_device fields */
2436 dev->init = orinoco_init;
2437 dev->hard_start_xmit = orinoco_xmit;
2438 dev->tx_timeout = orinoco_tx_timeout;
2439 dev->watchdog_timeo = HZ; /* 1 second timeout */
2440 dev->get_stats = orinoco_get_stats;
2441 dev->ethtool_ops = &orinoco_ethtool_ops;
2442 dev->wireless_handlers = (struct iw_handler_def *)&orinoco_handler_def;
2443 #ifdef WIRELESS_SPY
2444 priv->wireless_data.spy_data = &priv->spy_data;
2445 dev->wireless_data = &priv->wireless_data;
2446 #endif
2447 dev->change_mtu = orinoco_change_mtu;
2448 dev->set_multicast_list = orinoco_set_multicast_list;
2449 /* we use the default eth_mac_addr for setting the MAC addr */
2450
2451 /* Set up default callbacks */
2452 dev->open = orinoco_open;
2453 dev->stop = orinoco_stop;
2454 priv->hard_reset = hard_reset;
2455
2456 spin_lock_init(&priv->lock);
2457 priv->open = 0;
2458 priv->hw_unavailable = 1; /* orinoco_init() must clear this
2459 * before anything else touches the
2460 * hardware */
2461 INIT_WORK(&priv->reset_work, (void (*)(void *))orinoco_reset, dev);
2462 INIT_WORK(&priv->join_work, (void (*)(void *))orinoco_join_ap, dev);
2463 INIT_WORK(&priv->wevent_work, (void (*)(void *))orinoco_send_wevents, dev);
2464
2465 netif_carrier_off(dev);
2466 priv->last_linkstatus = 0xffff;
2467
2468 return dev;
2469
2470 }
2471
2472 void free_orinocodev(struct net_device *dev)
2473 {
2474 struct orinoco_private *priv = netdev_priv(dev);
2475
2476 kfree(priv->scan_result);
2477 free_netdev(dev);
2478 }
2479
2480 /********************************************************************/
2481 /* Wireless extensions */
2482 /********************************************************************/
2483
2484 static int orinoco_hw_get_essid(struct orinoco_private *priv, int *active,
2485 char buf[IW_ESSID_MAX_SIZE+1])
2486 {
2487 hermes_t *hw = &priv->hw;
2488 int err = 0;
2489 struct hermes_idstring essidbuf;
2490 char *p = (char *)(&essidbuf.val);
2491 int len;
2492 unsigned long flags;
2493
2494 if (orinoco_lock(priv, &flags) != 0)
2495 return -EBUSY;
2496
2497 if (strlen(priv->desired_essid) > 0) {
2498 /* We read the desired SSID from the hardware rather
2499 than from priv->desired_essid, just in case the
2500 firmware is allowed to change it on us. I'm not
2501 sure about this */
2502 /* My guess is that the OWNSSID should always be whatever
2503 * we set to the card, whereas CURRENT_SSID is the one that
2504 * may change... - Jean II */
2505 u16 rid;
2506
2507 *active = 1;
2508
2509 rid = (priv->port_type == 3) ? HERMES_RID_CNFOWNSSID :
2510 HERMES_RID_CNFDESIREDSSID;
2511
2512 err = hermes_read_ltv(hw, USER_BAP, rid, sizeof(essidbuf),
2513 NULL, &essidbuf);
2514 if (err)
2515 goto fail_unlock;
2516 } else {
2517 *active = 0;
2518
2519 err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CURRENTSSID,
2520 sizeof(essidbuf), NULL, &essidbuf);
2521 if (err)
2522 goto fail_unlock;
2523 }
2524
2525 len = le16_to_cpu(essidbuf.len);
2526 BUG_ON(len > IW_ESSID_MAX_SIZE);
2527
2528 memset(buf, 0, IW_ESSID_MAX_SIZE+1);
2529 memcpy(buf, p, len);
2530 buf[len] = '\0';
2531
2532 fail_unlock:
2533 orinoco_unlock(priv, &flags);
2534
2535 return err;
2536 }
2537
2538 static long orinoco_hw_get_freq(struct orinoco_private *priv)
2539 {
2540
2541 hermes_t *hw = &priv->hw;
2542 int err = 0;
2543 u16 channel;
2544 long freq = 0;
2545 unsigned long flags;
2546
2547 if (orinoco_lock(priv, &flags) != 0)
2548 return -EBUSY;
2549
2550 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CURRENTCHANNEL, &channel);
2551 if (err)
2552 goto out;
2553
2554 /* Intersil firmware 1.3.5 returns 0 when the interface is down */
2555 if (channel == 0) {
2556 err = -EBUSY;
2557 goto out;
2558 }
2559
2560 if ( (channel < 1) || (channel > NUM_CHANNELS) ) {
2561 printk(KERN_WARNING "%s: Channel out of range (%d)!\n",
2562 priv->ndev->name, channel);
2563 err = -EBUSY;
2564 goto out;
2565
2566 }
2567 freq = channel_frequency[channel-1] * 100000;
2568
2569 out:
2570 orinoco_unlock(priv, &flags);
2571
2572 if (err > 0)
2573 err = -EBUSY;
2574 return err ? err : freq;
2575 }
2576
2577 static int orinoco_hw_get_bitratelist(struct orinoco_private *priv,
2578 int *numrates, s32 *rates, int max)
2579 {
2580 hermes_t *hw = &priv->hw;
2581 struct hermes_idstring list;
2582 unsigned char *p = (unsigned char *)&list.val;
2583 int err = 0;
2584 int num;
2585 int i;
2586 unsigned long flags;
2587
2588 if (orinoco_lock(priv, &flags) != 0)
2589 return -EBUSY;
2590
2591 err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_SUPPORTEDDATARATES,
2592 sizeof(list), NULL, &list);
2593 orinoco_unlock(priv, &flags);
2594
2595 if (err)
2596 return err;
2597
2598 num = le16_to_cpu(list.len);
2599 *numrates = num;
2600 num = min(num, max);
2601
2602 for (i = 0; i < num; i++) {
2603 rates[i] = (p[i] & 0x7f) * 500000; /* convert to bps */
2604 }
2605
2606 return 0;
2607 }
2608
2609 static int orinoco_ioctl_getname(struct net_device *dev,
2610 struct iw_request_info *info,
2611 char *name,
2612 char *extra)
2613 {
2614 struct orinoco_private *priv = netdev_priv(dev);
2615 int numrates;
2616 int err;
2617
2618 err = orinoco_hw_get_bitratelist(priv, &numrates, NULL, 0);
2619
2620 if (!err && (numrates > 2))
2621 strcpy(name, "IEEE 802.11b");
2622 else
2623 strcpy(name, "IEEE 802.11-DS");
2624
2625 return 0;
2626 }
2627
2628 static int orinoco_ioctl_setwap(struct net_device *dev,
2629 struct iw_request_info *info,
2630 struct sockaddr *ap_addr,
2631 char *extra)
2632 {
2633 struct orinoco_private *priv = netdev_priv(dev);
2634 int err = -EINPROGRESS; /* Call commit handler */
2635 unsigned long flags;
2636 static const u8 off_addr[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
2637 static const u8 any_addr[] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
2638
2639 if (orinoco_lock(priv, &flags) != 0)
2640 return -EBUSY;
2641
2642 /* Enable automatic roaming - no sanity checks are needed */
2643 if (memcmp(&ap_addr->sa_data, off_addr, ETH_ALEN) == 0 ||
2644 memcmp(&ap_addr->sa_data, any_addr, ETH_ALEN) == 0) {
2645 priv->bssid_fixed = 0;
2646 memset(priv->desired_bssid, 0, ETH_ALEN);
2647
2648 /* "off" means keep existing connection */
2649 if (ap_addr->sa_data[0] == 0) {
2650 __orinoco_hw_set_wap(priv);
2651 err = 0;
2652 }
2653 goto out;
2654 }
2655
2656 if (priv->firmware_type == FIRMWARE_TYPE_AGERE) {
2657 printk(KERN_WARNING "%s: Lucent/Agere firmware doesn't "
2658 "support manual roaming\n",
2659 dev->name);
2660 err = -EOPNOTSUPP;
2661 goto out;
2662 }
2663
2664 if (priv->iw_mode != IW_MODE_INFRA) {
2665 printk(KERN_WARNING "%s: Manual roaming supported only in "
2666 "managed mode\n", dev->name);
2667 err = -EOPNOTSUPP;
2668 goto out;
2669 }
2670
2671 /* Intersil firmware hangs without Desired ESSID */
2672 if (priv->firmware_type == FIRMWARE_TYPE_INTERSIL &&
2673 strlen(priv->desired_essid) == 0) {
2674 printk(KERN_WARNING "%s: Desired ESSID must be set for "
2675 "manual roaming\n", dev->name);
2676 err = -EOPNOTSUPP;
2677 goto out;
2678 }
2679
2680 /* Finally, enable manual roaming */
2681 priv->bssid_fixed = 1;
2682 memcpy(priv->desired_bssid, &ap_addr->sa_data, ETH_ALEN);
2683
2684 out:
2685 orinoco_unlock(priv, &flags);
2686 return err;
2687 }
2688
2689 static int orinoco_ioctl_getwap(struct net_device *dev,
2690 struct iw_request_info *info,
2691 struct sockaddr *ap_addr,
2692 char *extra)
2693 {
2694 struct orinoco_private *priv = netdev_priv(dev);
2695
2696 hermes_t *hw = &priv->hw;
2697 int err = 0;
2698 unsigned long flags;
2699
2700 if (orinoco_lock(priv, &flags) != 0)
2701 return -EBUSY;
2702
2703 ap_addr->sa_family = ARPHRD_ETHER;
2704 err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CURRENTBSSID,
2705 ETH_ALEN, NULL, ap_addr->sa_data);
2706
2707 orinoco_unlock(priv, &flags);
2708
2709 return err;
2710 }
2711
2712 static int orinoco_ioctl_setmode(struct net_device *dev,
2713 struct iw_request_info *info,
2714 u32 *mode,
2715 char *extra)
2716 {
2717 struct orinoco_private *priv = netdev_priv(dev);
2718 int err = -EINPROGRESS; /* Call commit handler */
2719 unsigned long flags;
2720
2721 if (priv->iw_mode == *mode)
2722 return 0;
2723
2724 if (orinoco_lock(priv, &flags) != 0)
2725 return -EBUSY;
2726
2727 switch (*mode) {
2728 case IW_MODE_ADHOC:
2729 if (!priv->has_ibss && !priv->has_port3)
2730 err = -EOPNOTSUPP;
2731 break;
2732
2733 case IW_MODE_INFRA:
2734 break;
2735
2736 case IW_MODE_MONITOR:
2737 if (priv->broken_monitor && !force_monitor) {
2738 printk(KERN_WARNING "%s: Monitor mode support is "
2739 "buggy in this firmware, not enabling\n",
2740 dev->name);
2741 err = -EOPNOTSUPP;
2742 }
2743 break;
2744
2745 default:
2746 err = -EOPNOTSUPP;
2747 break;
2748 }
2749
2750 if (err == -EINPROGRESS) {
2751 priv->iw_mode = *mode;
2752 set_port_type(priv);
2753 }
2754
2755 orinoco_unlock(priv, &flags);
2756
2757 return err;
2758 }
2759
2760 static int orinoco_ioctl_getmode(struct net_device *dev,
2761 struct iw_request_info *info,
2762 u32 *mode,
2763 char *extra)
2764 {
2765 struct orinoco_private *priv = netdev_priv(dev);
2766
2767 *mode = priv->iw_mode;
2768 return 0;
2769 }
2770
2771 static int orinoco_ioctl_getiwrange(struct net_device *dev,
2772 struct iw_request_info *info,
2773 struct iw_point *rrq,
2774 char *extra)
2775 {
2776 struct orinoco_private *priv = netdev_priv(dev);
2777 int err = 0;
2778 struct iw_range *range = (struct iw_range *) extra;
2779 int numrates;
2780 int i, k;
2781
2782 TRACE_ENTER(dev->name);
2783
2784 rrq->length = sizeof(struct iw_range);
2785 memset(range, 0, sizeof(struct iw_range));
2786
2787 range->we_version_compiled = WIRELESS_EXT;
2788 range->we_version_source = 14;
2789
2790 /* Set available channels/frequencies */
2791 range->num_channels = NUM_CHANNELS;
2792 k = 0;
2793 for (i = 0; i < NUM_CHANNELS; i++) {
2794 if (priv->channel_mask & (1 << i)) {
2795 range->freq[k].i = i + 1;
2796 range->freq[k].m = channel_frequency[i] * 100000;
2797 range->freq[k].e = 1;
2798 k++;
2799 }
2800
2801 if (k >= IW_MAX_FREQUENCIES)
2802 break;
2803 }
2804 range->num_frequency = k;
2805 range->sensitivity = 3;
2806
2807 if (priv->has_wep) {
2808 range->max_encoding_tokens = ORINOCO_MAX_KEYS;
2809 range->encoding_size[0] = SMALL_KEY_SIZE;
2810 range->num_encoding_sizes = 1;
2811
2812 if (priv->has_big_wep) {
2813 range->encoding_size[1] = LARGE_KEY_SIZE;
2814 range->num_encoding_sizes = 2;
2815 }
2816 }
2817
2818 if ((priv->iw_mode == IW_MODE_ADHOC) && (!SPY_NUMBER(priv))){
2819 /* Quality stats meaningless in ad-hoc mode */
2820 } else {
2821 range->max_qual.qual = 0x8b - 0x2f;
2822 range->max_qual.level = 0x2f - 0x95 - 1;
2823 range->max_qual.noise = 0x2f - 0x95 - 1;
2824 /* Need to get better values */
2825 range->avg_qual.qual = 0x24;
2826 range->avg_qual.level = 0xC2;
2827 range->avg_qual.noise = 0x9E;
2828 }
2829
2830 err = orinoco_hw_get_bitratelist(priv, &numrates,
2831 range->bitrate, IW_MAX_BITRATES);
2832 if (err)
2833 return err;
2834 range->num_bitrates = numrates;
2835
2836 /* Set an indication of the max TCP throughput in bit/s that we can
2837 * expect using this interface. May be use for QoS stuff...
2838 * Jean II */
2839 if (numrates > 2)
2840 range->throughput = 5 * 1000 * 1000; /* ~5 Mb/s */
2841 else
2842 range->throughput = 1.5 * 1000 * 1000; /* ~1.5 Mb/s */
2843
2844 range->min_rts = 0;
2845 range->max_rts = 2347;
2846 range->min_frag = 256;
2847 range->max_frag = 2346;
2848
2849 range->min_pmp = 0;
2850 range->max_pmp = 65535000;
2851 range->min_pmt = 0;
2852 range->max_pmt = 65535 * 1000; /* ??? */
2853 range->pmp_flags = IW_POWER_PERIOD;
2854 range->pmt_flags = IW_POWER_TIMEOUT;
2855 range->pm_capa = IW_POWER_PERIOD | IW_POWER_TIMEOUT | IW_POWER_UNICAST_R;
2856
2857 range->retry_capa = IW_RETRY_LIMIT | IW_RETRY_LIFETIME;
2858 range->retry_flags = IW_RETRY_LIMIT;
2859 range->r_time_flags = IW_RETRY_LIFETIME;
2860 range->min_retry = 0;
2861 range->max_retry = 65535; /* ??? */
2862 range->min_r_time = 0;
2863 range->max_r_time = 65535 * 1000; /* ??? */
2864
2865 /* Event capability (kernel) */
2866 IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
2867 /* Event capability (driver) */
2868 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWTHRSPY);
2869 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
2870 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
2871 IW_EVENT_CAPA_SET(range->event_capa, IWEVTXDROP);
2872
2873 TRACE_EXIT(dev->name);
2874
2875 return 0;
2876 }
2877
2878 static int orinoco_ioctl_setiwencode(struct net_device *dev,
2879 struct iw_request_info *info,
2880 struct iw_point *erq,
2881 char *keybuf)
2882 {
2883 struct orinoco_private *priv = netdev_priv(dev);
2884 int index = (erq->flags & IW_ENCODE_INDEX) - 1;
2885 int setindex = priv->tx_key;
2886 int enable = priv->wep_on;
2887 int restricted = priv->wep_restrict;
2888 u16 xlen = 0;
2889 int err = -EINPROGRESS; /* Call commit handler */
2890 unsigned long flags;
2891
2892 if (! priv->has_wep)
2893 return -EOPNOTSUPP;
2894
2895 if (erq->pointer) {
2896 /* We actually have a key to set - check its length */
2897 if (erq->length > LARGE_KEY_SIZE)
2898 return -E2BIG;
2899
2900 if ( (erq->length > SMALL_KEY_SIZE) && !priv->has_big_wep )
2901 return -E2BIG;
2902 }
2903
2904 if (orinoco_lock(priv, &flags) != 0)
2905 return -EBUSY;
2906
2907 if (erq->pointer) {
2908 if ((index < 0) || (index >= ORINOCO_MAX_KEYS))
2909 index = priv->tx_key;
2910
2911 /* Adjust key length to a supported value */
2912 if (erq->length > SMALL_KEY_SIZE) {
2913 xlen = LARGE_KEY_SIZE;
2914 } else if (erq->length > 0) {
2915 xlen = SMALL_KEY_SIZE;
2916 } else
2917 xlen = 0;
2918
2919 /* Switch on WEP if off */
2920 if ((!enable) && (xlen > 0)) {
2921 setindex = index;
2922 enable = 1;
2923 }
2924 } else {
2925 /* Important note : if the user do "iwconfig eth0 enc off",
2926 * we will arrive there with an index of -1. This is valid
2927 * but need to be taken care off... Jean II */
2928 if ((index < 0) || (index >= ORINOCO_MAX_KEYS)) {
2929 if((index != -1) || (erq->flags == 0)) {
2930 err = -EINVAL;
2931 goto out;
2932 }
2933 } else {
2934 /* Set the index : Check that the key is valid */
2935 if(priv->keys[index].len == 0) {
2936 err = -EINVAL;
2937 goto out;
2938 }
2939 setindex = index;
2940 }
2941 }
2942
2943 if (erq->flags & IW_ENCODE_DISABLED)
2944 enable = 0;
2945 if (erq->flags & IW_ENCODE_OPEN)
2946 restricted = 0;
2947 if (erq->flags & IW_ENCODE_RESTRICTED)
2948 restricted = 1;
2949
2950 if (erq->pointer) {
2951 priv->keys[index].len = cpu_to_le16(xlen);
2952 memset(priv->keys[index].data, 0,
2953 sizeof(priv->keys[index].data));
2954 memcpy(priv->keys[index].data, keybuf, erq->length);
2955 }
2956 priv->tx_key = setindex;
2957
2958 /* Try fast key change if connected and only keys are changed */
2959 if (priv->wep_on && enable && (priv->wep_restrict == restricted) &&
2960 netif_carrier_ok(dev)) {
2961 err = __orinoco_hw_setup_wepkeys(priv);
2962 /* No need to commit if successful */
2963 goto out;
2964 }
2965
2966 priv->wep_on = enable;
2967 priv->wep_restrict = restricted;
2968
2969 out:
2970 orinoco_unlock(priv, &flags);
2971
2972 return err;
2973 }
2974
2975 static int orinoco_ioctl_getiwencode(struct net_device *dev,
2976 struct iw_request_info *info,
2977 struct iw_point *erq,
2978 char *keybuf)
2979 {
2980 struct orinoco_private *priv = netdev_priv(dev);
2981 int index = (erq->flags & IW_ENCODE_INDEX) - 1;
2982 u16 xlen = 0;
2983 unsigned long flags;
2984
2985 if (! priv->has_wep)
2986 return -EOPNOTSUPP;
2987
2988 if (orinoco_lock(priv, &flags) != 0)
2989 return -EBUSY;
2990
2991 if ((index < 0) || (index >= ORINOCO_MAX_KEYS))
2992 index = priv->tx_key;
2993
2994 erq->flags = 0;
2995 if (! priv->wep_on)
2996 erq->flags |= IW_ENCODE_DISABLED;
2997 erq->flags |= index + 1;
2998
2999 if (priv->wep_restrict)
3000 erq->flags |= IW_ENCODE_RESTRICTED;
3001 else
3002 erq->flags |= IW_ENCODE_OPEN;
3003
3004 xlen = le16_to_cpu(priv->keys[index].len);
3005
3006 erq->length = xlen;
3007
3008 memcpy(keybuf, priv->keys[index].data, ORINOCO_MAX_KEY_SIZE);
3009
3010 orinoco_unlock(priv, &flags);
3011 return 0;
3012 }
3013
3014 static int orinoco_ioctl_setessid(struct net_device *dev,
3015 struct iw_request_info *info,
3016 struct iw_point *erq,
3017 char *essidbuf)
3018 {
3019 struct orinoco_private *priv = netdev_priv(dev);
3020 unsigned long flags;
3021
3022 /* Note : ESSID is ignored in Ad-Hoc demo mode, but we can set it
3023 * anyway... - Jean II */
3024
3025 /* Hum... Should not use Wireless Extension constant (may change),
3026 * should use our own... - Jean II */
3027 if (erq->length > IW_ESSID_MAX_SIZE)
3028 return -E2BIG;
3029
3030 if (orinoco_lock(priv, &flags) != 0)
3031 return -EBUSY;
3032
3033 /* NULL the string (for NULL termination & ESSID = ANY) - Jean II */
3034 memset(priv->desired_essid, 0, sizeof(priv->desired_essid));
3035
3036 /* If not ANY, get the new ESSID */
3037 if (erq->flags) {
3038 memcpy(priv->desired_essid, essidbuf, erq->length);
3039 }
3040
3041 orinoco_unlock(priv, &flags);
3042
3043 return -EINPROGRESS; /* Call commit handler */
3044 }
3045
3046 static int orinoco_ioctl_getessid(struct net_device *dev,
3047 struct iw_request_info *info,
3048 struct iw_point *erq,
3049 char *essidbuf)
3050 {
3051 struct orinoco_private *priv = netdev_priv(dev);
3052 int active;
3053 int err = 0;
3054 unsigned long flags;
3055
3056 TRACE_ENTER(dev->name);
3057
3058 if (netif_running(dev)) {
3059 err = orinoco_hw_get_essid(priv, &active, essidbuf);
3060 if (err)
3061 return err;
3062 } else {
3063 if (orinoco_lock(priv, &flags) != 0)
3064 return -EBUSY;
3065 memcpy(essidbuf, priv->desired_essid, IW_ESSID_MAX_SIZE + 1);
3066 orinoco_unlock(priv, &flags);
3067 }
3068
3069 erq->flags = 1;
3070 erq->length = strlen(essidbuf) + 1;
3071
3072 TRACE_EXIT(dev->name);
3073
3074 return 0;
3075 }
3076
3077 static int orinoco_ioctl_setnick(struct net_device *dev,
3078 struct iw_request_info *info,
3079 struct iw_point *nrq,
3080 char *nickbuf)
3081 {
3082 struct orinoco_private *priv = netdev_priv(dev);
3083 unsigned long flags;
3084
3085 if (nrq->length > IW_ESSID_MAX_SIZE)
3086 return -E2BIG;
3087
3088 if (orinoco_lock(priv, &flags) != 0)
3089 return -EBUSY;
3090
3091 memset(priv->nick, 0, sizeof(priv->nick));
3092 memcpy(priv->nick, nickbuf, nrq->length);
3093
3094 orinoco_unlock(priv, &flags);
3095
3096 return -EINPROGRESS; /* Call commit handler */
3097 }
3098
3099 static int orinoco_ioctl_getnick(struct net_device *dev,
3100 struct iw_request_info *info,
3101 struct iw_point *nrq,
3102 char *nickbuf)
3103 {
3104 struct orinoco_private *priv = netdev_priv(dev);
3105 unsigned long flags;
3106
3107 if (orinoco_lock(priv, &flags) != 0)
3108 return -EBUSY;
3109
3110 memcpy(nickbuf, priv->nick, IW_ESSID_MAX_SIZE+1);
3111 orinoco_unlock(priv, &flags);
3112
3113 nrq->length = strlen(nickbuf)+1;
3114
3115 return 0;
3116 }
3117
3118 static int orinoco_ioctl_setfreq(struct net_device *dev,
3119 struct iw_request_info *info,
3120 struct iw_freq *frq,
3121 char *extra)
3122 {
3123 struct orinoco_private *priv = netdev_priv(dev);
3124 int chan = -1;
3125 unsigned long flags;
3126 int err = -EINPROGRESS; /* Call commit handler */
3127
3128 /* In infrastructure mode the AP sets the channel */
3129 if (priv->iw_mode == IW_MODE_INFRA)
3130 return -EBUSY;
3131
3132 if ( (frq->e == 0) && (frq->m <= 1000) ) {
3133 /* Setting by channel number */
3134 chan = frq->m;
3135 } else {
3136 /* Setting by frequency - search the table */
3137 int mult = 1;
3138 int i;
3139
3140 for (i = 0; i < (6 - frq->e); i++)
3141 mult *= 10;
3142
3143 for (i = 0; i < NUM_CHANNELS; i++)
3144 if (frq->m == (channel_frequency[i] * mult))
3145 chan = i+1;
3146 }
3147
3148 if ( (chan < 1) || (chan > NUM_CHANNELS) ||
3149 ! (priv->channel_mask & (1 << (chan-1)) ) )
3150 return -EINVAL;
3151
3152 if (orinoco_lock(priv, &flags) != 0)
3153 return -EBUSY;
3154
3155 priv->channel = chan;
3156 if (priv->iw_mode == IW_MODE_MONITOR) {
3157 /* Fast channel change - no commit if successful */
3158 hermes_t *hw = &priv->hw;
3159 err = hermes_docmd_wait(hw, HERMES_CMD_TEST |
3160 HERMES_TEST_SET_CHANNEL,
3161 chan, NULL);
3162 }
3163 orinoco_unlock(priv, &flags);
3164
3165 return err;
3166 }
3167
3168 static int orinoco_ioctl_getfreq(struct net_device *dev,
3169 struct iw_request_info *info,
3170 struct iw_freq *frq,
3171 char *extra)
3172 {
3173 struct orinoco_private *priv = netdev_priv(dev);
3174 int tmp;
3175
3176 /* Locking done in there */
3177 tmp = orinoco_hw_get_freq(priv);
3178 if (tmp < 0) {
3179 return tmp;
3180 }
3181
3182 frq->m = tmp;
3183 frq->e = 1;
3184
3185 return 0;
3186 }
3187
3188 static int orinoco_ioctl_getsens(struct net_device *dev,
3189 struct iw_request_info *info,
3190 struct iw_param *srq,
3191 char *extra)
3192 {
3193 struct orinoco_private *priv = netdev_priv(dev);
3194 hermes_t *hw = &priv->hw;
3195 u16 val;
3196 int err;
3197 unsigned long flags;
3198
3199 if (!priv->has_sensitivity)
3200 return -EOPNOTSUPP;
3201
3202 if (orinoco_lock(priv, &flags) != 0)
3203 return -EBUSY;
3204 err = hermes_read_wordrec(hw, USER_BAP,
3205 HERMES_RID_CNFSYSTEMSCALE, &val);
3206 orinoco_unlock(priv, &flags);
3207
3208 if (err)
3209 return err;
3210
3211 srq->value = val;
3212 srq->fixed = 0; /* auto */
3213
3214 return 0;
3215 }
3216
3217 static int orinoco_ioctl_setsens(struct net_device *dev,
3218 struct iw_request_info *info,
3219 struct iw_param *srq,
3220 char *extra)
3221 {
3222 struct orinoco_private *priv = netdev_priv(dev);
3223 int val = srq->value;
3224 unsigned long flags;
3225
3226 if (!priv->has_sensitivity)
3227 return -EOPNOTSUPP;
3228
3229 if ((val < 1) || (val > 3))
3230 return -EINVAL;
3231
3232 if (orinoco_lock(priv, &flags) != 0)
3233 return -EBUSY;
3234 priv->ap_density = val;
3235 orinoco_unlock(priv, &flags);
3236
3237 return -EINPROGRESS; /* Call commit handler */
3238 }
3239
3240 static int orinoco_ioctl_setrts(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 int val = rrq->value;
3247 unsigned long flags;
3248
3249 if (rrq->disabled)
3250 val = 2347;
3251
3252 if ( (val < 0) || (val > 2347) )
3253 return -EINVAL;
3254
3255 if (orinoco_lock(priv, &flags) != 0)
3256 return -EBUSY;
3257
3258 priv->rts_thresh = val;
3259 orinoco_unlock(priv, &flags);
3260
3261 return -EINPROGRESS; /* Call commit handler */
3262 }
3263
3264 static int orinoco_ioctl_getrts(struct net_device *dev,
3265 struct iw_request_info *info,
3266 struct iw_param *rrq,
3267 char *extra)
3268 {
3269 struct orinoco_private *priv = netdev_priv(dev);
3270
3271 rrq->value = priv->rts_thresh;
3272 rrq->disabled = (rrq->value == 2347);
3273 rrq->fixed = 1;
3274
3275 return 0;
3276 }
3277
3278 static int orinoco_ioctl_setfrag(struct net_device *dev,
3279 struct iw_request_info *info,
3280 struct iw_param *frq,
3281 char *extra)
3282 {
3283 struct orinoco_private *priv = netdev_priv(dev);
3284 int err = -EINPROGRESS; /* Call commit handler */
3285 unsigned long flags;
3286
3287 if (orinoco_lock(priv, &flags) != 0)
3288 return -EBUSY;
3289
3290 if (priv->has_mwo) {
3291 if (frq->disabled)
3292 priv->mwo_robust = 0;
3293 else {
3294 if (frq->fixed)
3295 printk(KERN_WARNING "%s: Fixed fragmentation is "
3296 "not supported on this firmware. "
3297 "Using MWO robust instead.\n", dev->name);
3298 priv->mwo_robust = 1;
3299 }
3300 } else {
3301 if (frq->disabled)
3302 priv->frag_thresh = 2346;
3303 else {
3304 if ( (frq->value < 256) || (frq->value > 2346) )
3305 err = -EINVAL;
3306 else
3307 priv->frag_thresh = frq->value & ~0x1; /* must be even */
3308 }
3309 }
3310
3311 orinoco_unlock(priv, &flags);
3312
3313 return err;
3314 }
3315
3316 static int orinoco_ioctl_getfrag(struct net_device *dev,
3317 struct iw_request_info *info,
3318 struct iw_param *frq,
3319 char *extra)
3320 {
3321 struct orinoco_private *priv = netdev_priv(dev);
3322 hermes_t *hw = &priv->hw;
3323 int err;
3324 u16 val;
3325 unsigned long flags;
3326
3327 if (orinoco_lock(priv, &flags) != 0)
3328 return -EBUSY;
3329
3330 if (priv->has_mwo) {
3331 err = hermes_read_wordrec(hw, USER_BAP,
3332 HERMES_RID_CNFMWOROBUST_AGERE,
3333 &val);
3334 if (err)
3335 val = 0;
3336
3337 frq->value = val ? 2347 : 0;
3338 frq->disabled = ! val;
3339 frq->fixed = 0;
3340 } else {
3341 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFFRAGMENTATIONTHRESHOLD,
3342 &val);
3343 if (err)
3344 val = 0;
3345
3346 frq->value = val;
3347 frq->disabled = (val >= 2346);
3348 frq->fixed = 1;
3349 }
3350
3351 orinoco_unlock(priv, &flags);
3352
3353 return err;
3354 }
3355
3356 static int orinoco_ioctl_setrate(struct net_device *dev,
3357 struct iw_request_info *info,
3358 struct iw_param *rrq,
3359 char *extra)
3360 {
3361 struct orinoco_private *priv = netdev_priv(dev);
3362 int ratemode = -1;
3363 int bitrate; /* 100s of kilobits */
3364 int i;
3365 unsigned long flags;
3366
3367 /* As the user space doesn't know our highest rate, it uses -1
3368 * to ask us to set the highest rate. Test it using "iwconfig
3369 * ethX rate auto" - Jean II */
3370 if (rrq->value == -1)
3371 bitrate = 110;
3372 else {
3373 if (rrq->value % 100000)
3374 return -EINVAL;
3375 bitrate = rrq->value / 100000;
3376 }
3377
3378 if ( (bitrate != 10) && (bitrate != 20) &&
3379 (bitrate != 55) && (bitrate != 110) )
3380 return -EINVAL;
3381
3382 for (i = 0; i < BITRATE_TABLE_SIZE; i++)
3383 if ( (bitrate_table[i].bitrate == bitrate) &&
3384 (bitrate_table[i].automatic == ! rrq->fixed) ) {
3385 ratemode = i;
3386 break;
3387 }
3388
3389 if (ratemode == -1)
3390 return -EINVAL;
3391
3392 if (orinoco_lock(priv, &flags) != 0)
3393 return -EBUSY;
3394 priv->bitratemode = ratemode;
3395 orinoco_unlock(priv, &flags);
3396
3397 return -EINPROGRESS;
3398 }
3399
3400 static int orinoco_ioctl_getrate(struct net_device *dev,
3401 struct iw_request_info *info,
3402 struct iw_param *rrq,
3403 char *extra)
3404 {
3405 struct orinoco_private *priv = netdev_priv(dev);
3406 hermes_t *hw = &priv->hw;
3407 int err = 0;
3408 int ratemode;
3409 int i;
3410 u16 val;
3411 unsigned long flags;
3412
3413 if (orinoco_lock(priv, &flags) != 0)
3414 return -EBUSY;
3415
3416 ratemode = priv->bitratemode;
3417
3418 BUG_ON((ratemode < 0) || (ratemode >= BITRATE_TABLE_SIZE));
3419
3420 rrq->value = bitrate_table[ratemode].bitrate * 100000;
3421 rrq->fixed = ! bitrate_table[ratemode].automatic;
3422 rrq->disabled = 0;
3423
3424 /* If the interface is running we try to find more about the
3425 current mode */
3426 if (netif_running(dev)) {
3427 err = hermes_read_wordrec(hw, USER_BAP,
3428 HERMES_RID_CURRENTTXRATE, &val);
3429 if (err)
3430 goto out;
3431
3432 switch (priv->firmware_type) {
3433 case FIRMWARE_TYPE_AGERE: /* Lucent style rate */
3434 /* Note : in Lucent firmware, the return value of
3435 * HERMES_RID_CURRENTTXRATE is the bitrate in Mb/s,
3436 * and therefore is totally different from the
3437 * encoding of HERMES_RID_CNFTXRATECONTROL.
3438 * Don't forget that 6Mb/s is really 5.5Mb/s */
3439 if (val == 6)
3440 rrq->value = 5500000;
3441 else
3442 rrq->value = val * 1000000;
3443 break;
3444 case FIRMWARE_TYPE_INTERSIL: /* Intersil style rate */
3445 case FIRMWARE_TYPE_SYMBOL: /* Symbol style rate */
3446 for (i = 0; i < BITRATE_TABLE_SIZE; i++)
3447 if (bitrate_table[i].intersil_txratectrl == val) {
3448 ratemode = i;
3449 break;
3450 }
3451 if (i >= BITRATE_TABLE_SIZE)
3452 printk(KERN_INFO "%s: Unable to determine current bitrate (0x%04hx)\n",
3453 dev->name, val);
3454
3455 rrq->value = bitrate_table[ratemode].bitrate * 100000;
3456 break;
3457 default:
3458 BUG();
3459 }
3460 }
3461
3462 out:
3463 orinoco_unlock(priv, &flags);
3464
3465 return err;
3466 }
3467
3468 static int orinoco_ioctl_setpower(struct net_device *dev,
3469 struct iw_request_info *info,
3470 struct iw_param *prq,
3471 char *extra)
3472 {
3473 struct orinoco_private *priv = netdev_priv(dev);
3474 int err = -EINPROGRESS; /* Call commit handler */
3475 unsigned long flags;
3476
3477 if (orinoco_lock(priv, &flags) != 0)
3478 return -EBUSY;
3479
3480 if (prq->disabled) {
3481 priv->pm_on = 0;
3482 } else {
3483 switch (prq->flags & IW_POWER_MODE) {
3484 case IW_POWER_UNICAST_R:
3485 priv->pm_mcast = 0;
3486 priv->pm_on = 1;
3487 break;
3488 case IW_POWER_ALL_R:
3489 priv->pm_mcast = 1;
3490 priv->pm_on = 1;
3491 break;
3492 case IW_POWER_ON:
3493 /* No flags : but we may have a value - Jean II */
3494 break;
3495 default:
3496 err = -EINVAL;
3497 }
3498 if (err)
3499 goto out;
3500
3501 if (prq->flags & IW_POWER_TIMEOUT) {
3502 priv->pm_on = 1;
3503 priv->pm_timeout = prq->value / 1000;
3504 }
3505 if (prq->flags & IW_POWER_PERIOD) {
3506 priv->pm_on = 1;
3507 priv->pm_period = prq->value / 1000;
3508 }
3509 /* It's valid to not have a value if we are just toggling
3510 * the flags... Jean II */
3511 if(!priv->pm_on) {
3512 err = -EINVAL;
3513 goto out;
3514 }
3515 }
3516
3517 out:
3518 orinoco_unlock(priv, &flags);
3519
3520 return err;
3521 }
3522
3523 static int orinoco_ioctl_getpower(struct net_device *dev,
3524 struct iw_request_info *info,
3525 struct iw_param *prq,
3526 char *extra)
3527 {
3528 struct orinoco_private *priv = netdev_priv(dev);
3529 hermes_t *hw = &priv->hw;
3530 int err = 0;
3531 u16 enable, period, timeout, mcast;
3532 unsigned long flags;
3533
3534 if (orinoco_lock(priv, &flags) != 0)
3535 return -EBUSY;
3536
3537 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFPMENABLED, &enable);
3538 if (err)
3539 goto out;
3540
3541 err = hermes_read_wordrec(hw, USER_BAP,
3542 HERMES_RID_CNFMAXSLEEPDURATION, &period);
3543 if (err)
3544 goto out;
3545
3546 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFPMHOLDOVERDURATION, &timeout);
3547 if (err)
3548 goto out;
3549
3550 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFMULTICASTRECEIVE, &mcast);
3551 if (err)
3552 goto out;
3553
3554 prq->disabled = !enable;
3555 /* Note : by default, display the period */
3556 if ((prq->flags & IW_POWER_TYPE) == IW_POWER_TIMEOUT) {
3557 prq->flags = IW_POWER_TIMEOUT;
3558 prq->value = timeout * 1000;
3559 } else {
3560 prq->flags = IW_POWER_PERIOD;
3561 prq->value = period * 1000;
3562 }
3563 if (mcast)
3564 prq->flags |= IW_POWER_ALL_R;
3565 else
3566 prq->flags |= IW_POWER_UNICAST_R;
3567
3568 out:
3569 orinoco_unlock(priv, &flags);
3570
3571 return err;
3572 }
3573
3574 static int orinoco_ioctl_getretry(struct net_device *dev,
3575 struct iw_request_info *info,
3576 struct iw_param *rrq,
3577 char *extra)
3578 {
3579 struct orinoco_private *priv = netdev_priv(dev);
3580 hermes_t *hw = &priv->hw;
3581 int err = 0;
3582 u16 short_limit, long_limit, lifetime;
3583 unsigned long flags;
3584
3585 if (orinoco_lock(priv, &flags) != 0)
3586 return -EBUSY;
3587
3588 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_SHORTRETRYLIMIT,
3589 &short_limit);
3590 if (err)
3591 goto out;
3592
3593 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_LONGRETRYLIMIT,
3594 &long_limit);
3595 if (err)
3596 goto out;
3597
3598 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_MAXTRANSMITLIFETIME,
3599 &lifetime);
3600 if (err)
3601 goto out;
3602
3603 rrq->disabled = 0; /* Can't be disabled */
3604
3605 /* Note : by default, display the retry number */
3606 if ((rrq->flags & IW_RETRY_TYPE) == IW_RETRY_LIFETIME) {
3607 rrq->flags = IW_RETRY_LIFETIME;
3608 rrq->value = lifetime * 1000; /* ??? */
3609 } else {
3610 /* By default, display the min number */
3611 if ((rrq->flags & IW_RETRY_MAX)) {
3612 rrq->flags = IW_RETRY_LIMIT | IW_RETRY_MAX;
3613 rrq->value = long_limit;
3614 } else {
3615 rrq->flags = IW_RETRY_LIMIT;
3616 rrq->value = short_limit;
3617 if(short_limit != long_limit)
3618 rrq->flags |= IW_RETRY_MIN;
3619 }
3620 }
3621
3622 out:
3623 orinoco_unlock(priv, &flags);
3624
3625 return err;
3626 }
3627
3628 static int orinoco_ioctl_reset(struct net_device *dev,
3629 struct iw_request_info *info,
3630 void *wrqu,
3631 char *extra)
3632 {
3633 struct orinoco_private *priv = netdev_priv(dev);
3634
3635 if (! capable(CAP_NET_ADMIN))
3636 return -EPERM;
3637
3638 if (info->cmd == (SIOCIWFIRSTPRIV + 0x1)) {
3639 printk(KERN_DEBUG "%s: Forcing reset!\n", dev->name);
3640
3641 /* Firmware reset */
3642 orinoco_reset(dev);
3643 } else {
3644 printk(KERN_DEBUG "%s: Force scheduling reset!\n", dev->name);
3645
3646 schedule_work(&priv->reset_work);
3647 }
3648
3649 return 0;
3650 }
3651
3652 static int orinoco_ioctl_setibssport(struct net_device *dev,
3653 struct iw_request_info *info,
3654 void *wrqu,
3655 char *extra)
3656
3657 {
3658 struct orinoco_private *priv = netdev_priv(dev);
3659 int val = *( (int *) extra );
3660 unsigned long flags;
3661
3662 if (orinoco_lock(priv, &flags) != 0)
3663 return -EBUSY;
3664
3665 priv->ibss_port = val ;
3666
3667 /* Actually update the mode we are using */
3668 set_port_type(priv);
3669
3670 orinoco_unlock(priv, &flags);
3671 return -EINPROGRESS; /* Call commit handler */
3672 }
3673
3674 static int orinoco_ioctl_getibssport(struct net_device *dev,
3675 struct iw_request_info *info,
3676 void *wrqu,
3677 char *extra)
3678 {
3679 struct orinoco_private *priv = netdev_priv(dev);
3680 int *val = (int *) extra;
3681
3682 *val = priv->ibss_port;
3683 return 0;
3684 }
3685
3686 static int orinoco_ioctl_setport3(struct net_device *dev,
3687 struct iw_request_info *info,
3688 void *wrqu,
3689 char *extra)
3690 {
3691 struct orinoco_private *priv = netdev_priv(dev);
3692 int val = *( (int *) extra );
3693 int err = 0;
3694 unsigned long flags;
3695
3696 if (orinoco_lock(priv, &flags) != 0)
3697 return -EBUSY;
3698
3699 switch (val) {
3700 case 0: /* Try to do IEEE ad-hoc mode */
3701 if (! priv->has_ibss) {
3702 err = -EINVAL;
3703 break;
3704 }
3705 priv->prefer_port3 = 0;
3706
3707 break;
3708
3709 case 1: /* Try to do Lucent proprietary ad-hoc mode */
3710 if (! priv->has_port3) {
3711 err = -EINVAL;
3712 break;
3713 }
3714 priv->prefer_port3 = 1;
3715 break;
3716
3717 default:
3718 err = -EINVAL;
3719 }
3720
3721 if (! err) {
3722 /* Actually update the mode we are using */
3723 set_port_type(priv);
3724 err = -EINPROGRESS;
3725 }
3726
3727 orinoco_unlock(priv, &flags);
3728
3729 return err;
3730 }
3731
3732 static int orinoco_ioctl_getport3(struct net_device *dev,
3733 struct iw_request_info *info,
3734 void *wrqu,
3735 char *extra)
3736 {
3737 struct orinoco_private *priv = netdev_priv(dev);
3738 int *val = (int *) extra;
3739
3740 *val = priv->prefer_port3;
3741 return 0;
3742 }
3743
3744 static int orinoco_ioctl_setpreamble(struct net_device *dev,
3745 struct iw_request_info *info,
3746 void *wrqu,
3747 char *extra)
3748 {
3749 struct orinoco_private *priv = netdev_priv(dev);
3750 unsigned long flags;
3751 int val;
3752
3753 if (! priv->has_preamble)
3754 return -EOPNOTSUPP;
3755
3756 /* 802.11b has recently defined some short preamble.
3757 * Basically, the Phy header has been reduced in size.
3758 * This increase performance, especially at high rates
3759 * (the preamble is transmitted at 1Mb/s), unfortunately
3760 * this give compatibility troubles... - Jean II */
3761 val = *( (int *) extra );
3762
3763 if (orinoco_lock(priv, &flags) != 0)
3764 return -EBUSY;
3765
3766 if (val)
3767 priv->preamble = 1;
3768 else
3769 priv->preamble = 0;
3770
3771 orinoco_unlock(priv, &flags);
3772
3773 return -EINPROGRESS; /* Call commit handler */
3774 }
3775
3776 static int orinoco_ioctl_getpreamble(struct net_device *dev,
3777 struct iw_request_info *info,
3778 void *wrqu,
3779 char *extra)
3780 {
3781 struct orinoco_private *priv = netdev_priv(dev);
3782 int *val = (int *) extra;
3783
3784 if (! priv->has_preamble)
3785 return -EOPNOTSUPP;
3786
3787 *val = priv->preamble;
3788 return 0;
3789 }
3790
3791 /* ioctl interface to hermes_read_ltv()
3792 * To use with iwpriv, pass the RID as the token argument, e.g.
3793 * iwpriv get_rid [0xfc00]
3794 * At least Wireless Tools 25 is required to use iwpriv.
3795 * For Wireless Tools 25 and 26 append "dummy" are the end. */
3796 static int orinoco_ioctl_getrid(struct net_device *dev,
3797 struct iw_request_info *info,
3798 struct iw_point *data,
3799 char *extra)
3800 {
3801 struct orinoco_private *priv = netdev_priv(dev);
3802 hermes_t *hw = &priv->hw;
3803 int rid = data->flags;
3804 u16 length;
3805 int err;
3806 unsigned long flags;
3807
3808 /* It's a "get" function, but we don't want users to access the
3809 * WEP key and other raw firmware data */
3810 if (! capable(CAP_NET_ADMIN))
3811 return -EPERM;
3812
3813 if (rid < 0xfc00 || rid > 0xffff)
3814 return -EINVAL;
3815
3816 if (orinoco_lock(priv, &flags) != 0)
3817 return -EBUSY;
3818
3819 err = hermes_read_ltv(hw, USER_BAP, rid, MAX_RID_LEN, &length,
3820 extra);
3821 if (err)
3822 goto out;
3823
3824 data->length = min_t(u16, HERMES_RECLEN_TO_BYTES(length),
3825 MAX_RID_LEN);
3826
3827 out:
3828 orinoco_unlock(priv, &flags);
3829 return err;
3830 }
3831
3832 /* Trigger a scan (look for other cells in the vicinity */
3833 static int orinoco_ioctl_setscan(struct net_device *dev,
3834 struct iw_request_info *info,
3835 struct iw_param *srq,
3836 char *extra)
3837 {
3838 struct orinoco_private *priv = netdev_priv(dev);
3839 hermes_t *hw = &priv->hw;
3840 int err = 0;
3841 unsigned long flags;
3842
3843 /* Note : you may have realised that, as this is a SET operation,
3844 * this is priviledged and therefore a normal user can't
3845 * perform scanning.
3846 * This is not an error, while the device perform scanning,
3847 * traffic doesn't flow, so it's a perfect DoS...
3848 * Jean II */
3849
3850 if (orinoco_lock(priv, &flags) != 0)
3851 return -EBUSY;
3852
3853 /* Scanning with port 0 disabled would fail */
3854 if (!netif_running(dev)) {
3855 err = -ENETDOWN;
3856 goto out;
3857 }
3858
3859 /* In monitor mode, the scan results are always empty.
3860 * Probe responses are passed to the driver as received
3861 * frames and could be processed in software. */
3862 if (priv->iw_mode == IW_MODE_MONITOR) {
3863 err = -EOPNOTSUPP;
3864 goto out;
3865 }
3866
3867 /* Note : because we don't lock out the irq handler, the way
3868 * we access scan variables in priv is critical.
3869 * o scan_inprogress : not touched by irq handler
3870 * o scan_mode : not touched by irq handler
3871 * o scan_result : irq is strict producer, non-irq is strict
3872 * consumer.
3873 * o scan_len : synchronised with scan_result
3874 * Before modifying anything on those variables, please think hard !
3875 * Jean II */
3876
3877 /* If there is still some left-over scan results, get rid of it */
3878 if (priv->scan_result != NULL) {
3879 /* What's likely is that a client did crash or was killed
3880 * between triggering the scan request and reading the
3881 * results, so we need to reset everything.
3882 * Some clients that are too slow may suffer from that...
3883 * Jean II */
3884 kfree(priv->scan_result);
3885 priv->scan_result = NULL;
3886 }
3887
3888 /* Save flags */
3889 priv->scan_mode = srq->flags;
3890
3891 /* Always trigger scanning, even if it's in progress.
3892 * This way, if the info frame get lost, we will recover somewhat
3893 * gracefully - Jean II */
3894
3895 if (priv->has_hostscan) {
3896 switch (priv->firmware_type) {
3897 case FIRMWARE_TYPE_SYMBOL:
3898 err = hermes_write_wordrec(hw, USER_BAP,
3899 HERMES_RID_CNFHOSTSCAN_SYMBOL,
3900 HERMES_HOSTSCAN_SYMBOL_ONCE |
3901 HERMES_HOSTSCAN_SYMBOL_BCAST);
3902 break;
3903 case FIRMWARE_TYPE_INTERSIL: {
3904 u16 req[3];
3905
3906 req[0] = cpu_to_le16(0x3fff); /* All channels */
3907 req[1] = cpu_to_le16(0x0001); /* rate 1 Mbps */
3908 req[2] = 0; /* Any ESSID */
3909 err = HERMES_WRITE_RECORD(hw, USER_BAP,
3910 HERMES_RID_CNFHOSTSCAN, &req);
3911 }
3912 break;
3913 case FIRMWARE_TYPE_AGERE:
3914 err = hermes_write_wordrec(hw, USER_BAP,
3915 HERMES_RID_CNFSCANSSID_AGERE,
3916 0); /* Any ESSID */
3917 if (err)
3918 break;
3919
3920 err = hermes_inquire(hw, HERMES_INQ_SCAN);
3921 break;
3922 }
3923 } else
3924 err = hermes_inquire(hw, HERMES_INQ_SCAN);
3925
3926 /* One more client */
3927 if (! err)
3928 priv->scan_inprogress = 1;
3929
3930 out:
3931 orinoco_unlock(priv, &flags);
3932 return err;
3933 }
3934
3935 /* Translate scan data returned from the card to a card independant
3936 * format that the Wireless Tools will understand - Jean II
3937 * Return message length or -errno for fatal errors */
3938 static inline int orinoco_translate_scan(struct net_device *dev,
3939 char *buffer,
3940 char *scan,
3941 int scan_len)
3942 {
3943 struct orinoco_private *priv = netdev_priv(dev);
3944 int offset; /* In the scan data */
3945 union hermes_scan_info *atom;
3946 int atom_len;
3947 u16 capabilities;
3948 u16 channel;
3949 struct iw_event iwe; /* Temporary buffer */
3950 char * current_ev = buffer;
3951 char * end_buf = buffer + IW_SCAN_MAX_DATA;
3952
3953 switch (priv->firmware_type) {
3954 case FIRMWARE_TYPE_AGERE:
3955 atom_len = sizeof(struct agere_scan_apinfo);
3956 offset = 0;
3957 break;
3958 case FIRMWARE_TYPE_SYMBOL:
3959 /* Lack of documentation necessitates this hack.
3960 * Different firmwares have 68 or 76 byte long atoms.
3961 * We try modulo first. If the length divides by both,
3962 * we check what would be the channel in the second
3963 * frame for a 68-byte atom. 76-byte atoms have 0 there.
3964 * Valid channel cannot be 0. */
3965 if (scan_len % 76)
3966 atom_len = 68;
3967 else if (scan_len % 68)
3968 atom_len = 76;
3969 else if (scan_len >= 1292 && scan[68] == 0)
3970 atom_len = 76;
3971 else
3972 atom_len = 68;
3973 offset = 0;
3974 break;
3975 case FIRMWARE_TYPE_INTERSIL:
3976 offset = 4;
3977 if (priv->has_hostscan) {
3978 atom_len = le16_to_cpup((u16 *)scan);
3979 /* Sanity check for atom_len */
3980 if (atom_len < sizeof(struct prism2_scan_apinfo)) {
3981 printk(KERN_ERR "%s: Invalid atom_len in scan data: %d\n",
3982 dev->name, atom_len);
3983 return -EIO;
3984 }
3985 } else
3986 atom_len = offsetof(struct prism2_scan_apinfo, atim);
3987 break;
3988 default:
3989 return -EOPNOTSUPP;
3990 }
3991
3992 /* Check that we got an whole number of atoms */
3993 if ((scan_len - offset) % atom_len) {
3994 printk(KERN_ERR "%s: Unexpected scan data length %d, "
3995 "atom_len %d, offset %d\n", dev->name, scan_len,
3996 atom_len, offset);
3997 return -EIO;
3998 }
3999
4000 /* Read the entries one by one */
4001 for (; offset + atom_len <= scan_len; offset += atom_len) {
4002 /* Get next atom */
4003 atom = (union hermes_scan_info *) (scan + offset);
4004
4005 /* First entry *MUST* be the AP MAC address */
4006 iwe.cmd = SIOCGIWAP;
4007 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
4008 memcpy(iwe.u.ap_addr.sa_data, atom->a.bssid, ETH_ALEN);
4009 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_ADDR_LEN);
4010
4011 /* Other entries will be displayed in the order we give them */
4012
4013 /* Add the ESSID */
4014 iwe.u.data.length = le16_to_cpu(atom->a.essid_len);
4015 if (iwe.u.data.length > 32)
4016 iwe.u.data.length = 32;
4017 iwe.cmd = SIOCGIWESSID;
4018 iwe.u.data.flags = 1;
4019 current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe, atom->a.essid);
4020
4021 /* Add mode */
4022 iwe.cmd = SIOCGIWMODE;
4023 capabilities = le16_to_cpu(atom->a.capabilities);
4024 if (capabilities & 0x3) {
4025 if (capabilities & 0x1)
4026 iwe.u.mode = IW_MODE_MASTER;
4027 else
4028 iwe.u.mode = IW_MODE_ADHOC;
4029 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_UINT_LEN);
4030 }
4031
4032 channel = atom->s.channel;
4033 if ( (channel >= 1) && (channel <= NUM_CHANNELS) ) {
4034 /* Add frequency */
4035 iwe.cmd = SIOCGIWFREQ;
4036 iwe.u.freq.m = channel_frequency[channel-1] * 100000;
4037 iwe.u.freq.e = 1;
4038 current_ev = iwe_stream_add_event(current_ev, end_buf,
4039 &iwe, IW_EV_FREQ_LEN);
4040 }
4041
4042 /* Add quality statistics */
4043 iwe.cmd = IWEVQUAL;
4044 iwe.u.qual.updated = 0x10; /* no link quality */
4045 iwe.u.qual.level = (__u8) le16_to_cpu(atom->a.level) - 0x95;
4046 iwe.u.qual.noise = (__u8) le16_to_cpu(atom->a.noise) - 0x95;
4047 /* Wireless tools prior to 27.pre22 will show link quality
4048 * anyway, so we provide a reasonable value. */
4049 if (iwe.u.qual.level > iwe.u.qual.noise)
4050 iwe.u.qual.qual = iwe.u.qual.level - iwe.u.qual.noise;
4051 else
4052 iwe.u.qual.qual = 0;
4053 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_QUAL_LEN);
4054
4055 /* Add encryption capability */
4056 iwe.cmd = SIOCGIWENCODE;
4057 if (capabilities & 0x10)
4058 iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
4059 else
4060 iwe.u.data.flags = IW_ENCODE_DISABLED;
4061 iwe.u.data.length = 0;
4062 current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe, atom->a.essid);
4063
4064 /* Bit rate is not available in Lucent/Agere firmwares */
4065 if (priv->firmware_type != FIRMWARE_TYPE_AGERE) {
4066 char * current_val = current_ev + IW_EV_LCP_LEN;
4067 int i;
4068 int step;
4069
4070 if (priv->firmware_type == FIRMWARE_TYPE_SYMBOL)
4071 step = 2;
4072 else
4073 step = 1;
4074
4075 iwe.cmd = SIOCGIWRATE;
4076 /* Those two flags are ignored... */
4077 iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
4078 /* Max 10 values */
4079 for (i = 0; i < 10; i += step) {
4080 /* NULL terminated */
4081 if (atom->p.rates[i] == 0x0)
4082 break;
4083 /* Bit rate given in 500 kb/s units (+ 0x80) */
4084 iwe.u.bitrate.value = ((atom->p.rates[i] & 0x7f) * 500000);
4085 current_val = iwe_stream_add_value(current_ev, current_val,
4086 end_buf, &iwe,
4087 IW_EV_PARAM_LEN);
4088 }
4089 /* Check if we added any event */
4090 if ((current_val - current_ev) > IW_EV_LCP_LEN)
4091 current_ev = current_val;
4092 }
4093
4094 /* The other data in the scan result are not really
4095 * interesting, so for now drop it - Jean II */
4096 }
4097 return current_ev - buffer;
4098 }
4099
4100 /* Return results of a scan */
4101 static int orinoco_ioctl_getscan(struct net_device *dev,
4102 struct iw_request_info *info,
4103 struct iw_point *srq,
4104 char *extra)
4105 {
4106 struct orinoco_private *priv = netdev_priv(dev);
4107 int err = 0;
4108 unsigned long flags;
4109
4110 if (orinoco_lock(priv, &flags) != 0)
4111 return -EBUSY;
4112
4113 /* If no results yet, ask to try again later */
4114 if (priv->scan_result == NULL) {
4115 if (priv->scan_inprogress)
4116 /* Important note : we don't want to block the caller
4117 * until results are ready for various reasons.
4118 * First, managing wait queues is complex and racy.
4119 * Second, we grab some rtnetlink lock before comming
4120 * here (in dev_ioctl()).
4121 * Third, we generate an Wireless Event, so the
4122 * caller can wait itself on that - Jean II */
4123 err = -EAGAIN;
4124 else
4125 /* Client error, no scan results...
4126 * The caller need to restart the scan. */
4127 err = -ENODATA;
4128 } else {
4129 /* We have some results to push back to user space */
4130
4131 /* Translate to WE format */
4132 int ret = orinoco_translate_scan(dev, extra,
4133 priv->scan_result,
4134 priv->scan_len);
4135
4136 if (ret < 0) {
4137 err = ret;
4138 kfree(priv->scan_result);
4139 priv->scan_result = NULL;
4140 } else {
4141 srq->length = ret;
4142
4143 /* Return flags */
4144 srq->flags = (__u16) priv->scan_mode;
4145
4146 /* In any case, Scan results will be cleaned up in the
4147 * reset function and when exiting the driver.
4148 * The person triggering the scanning may never come to
4149 * pick the results, so we need to do it in those places.
4150 * Jean II */
4151
4152 #ifdef SCAN_SINGLE_READ
4153 /* If you enable this option, only one client (the first
4154 * one) will be able to read the result (and only one
4155 * time). If there is multiple concurent clients that
4156 * want to read scan results, this behavior is not
4157 * advisable - Jean II */
4158 kfree(priv->scan_result);
4159 priv->scan_result = NULL;
4160 #endif /* SCAN_SINGLE_READ */
4161 /* Here, if too much time has elapsed since last scan,
4162 * we may want to clean up scan results... - Jean II */
4163 }
4164
4165 /* Scan is no longer in progress */
4166 priv->scan_inprogress = 0;
4167 }
4168
4169 orinoco_unlock(priv, &flags);
4170 return err;
4171 }
4172
4173 /* Commit handler, called after set operations */
4174 static int orinoco_ioctl_commit(struct net_device *dev,
4175 struct iw_request_info *info,
4176 void *wrqu,
4177 char *extra)
4178 {
4179 struct orinoco_private *priv = netdev_priv(dev);
4180 struct hermes *hw = &priv->hw;
4181 unsigned long flags;
4182 int err = 0;
4183
4184 if (!priv->open)
4185 return 0;
4186
4187 if (priv->broken_disableport) {
4188 orinoco_reset(dev);
4189 return 0;
4190 }
4191
4192 if (orinoco_lock(priv, &flags) != 0)
4193 return err;
4194
4195 err = hermes_disable_port(hw, 0);
4196 if (err) {
4197 printk(KERN_WARNING "%s: Unable to disable port "
4198 "while reconfiguring card\n", dev->name);
4199 priv->broken_disableport = 1;
4200 goto out;
4201 }
4202
4203 err = __orinoco_program_rids(dev);
4204 if (err) {
4205 printk(KERN_WARNING "%s: Unable to reconfigure card\n",
4206 dev->name);
4207 goto out;
4208 }
4209
4210 err = hermes_enable_port(hw, 0);
4211 if (err) {
4212 printk(KERN_WARNING "%s: Unable to enable port while reconfiguring card\n",
4213 dev->name);
4214 goto out;
4215 }
4216
4217 out:
4218 if (err) {
4219 printk(KERN_WARNING "%s: Resetting instead...\n", dev->name);
4220 schedule_work(&priv->reset_work);
4221 err = 0;
4222 }
4223
4224 orinoco_unlock(priv, &flags);
4225 return err;
4226 }
4227
4228 static const struct iw_priv_args orinoco_privtab[] = {
4229 { SIOCIWFIRSTPRIV + 0x0, 0, 0, "force_reset" },
4230 { SIOCIWFIRSTPRIV + 0x1, 0, 0, "card_reset" },
4231 { SIOCIWFIRSTPRIV + 0x2, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
4232 0, "set_port3" },
4233 { SIOCIWFIRSTPRIV + 0x3, 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
4234 "get_port3" },
4235 { SIOCIWFIRSTPRIV + 0x4, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
4236 0, "set_preamble" },
4237 { SIOCIWFIRSTPRIV + 0x5, 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
4238 "get_preamble" },
4239 { SIOCIWFIRSTPRIV + 0x6, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
4240 0, "set_ibssport" },
4241 { SIOCIWFIRSTPRIV + 0x7, 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
4242 "get_ibssport" },
4243 { SIOCIWFIRSTPRIV + 0x9, 0, IW_PRIV_TYPE_BYTE | MAX_RID_LEN,
4244 "get_rid" },
4245 };
4246
4247
4248 /*
4249 * Structures to export the Wireless Handlers
4250 */
4251
4252 static const iw_handler orinoco_handler[] = {
4253 [SIOCSIWCOMMIT-SIOCIWFIRST] = (iw_handler) orinoco_ioctl_commit,
4254 [SIOCGIWNAME -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getname,
4255 [SIOCSIWFREQ -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setfreq,
4256 [SIOCGIWFREQ -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getfreq,
4257 [SIOCSIWMODE -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setmode,
4258 [SIOCGIWMODE -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getmode,
4259 [SIOCSIWSENS -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setsens,
4260 [SIOCGIWSENS -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getsens,
4261 [SIOCGIWRANGE -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getiwrange,
4262 [SIOCSIWSPY -SIOCIWFIRST] = (iw_handler) iw_handler_set_spy,
4263 [SIOCGIWSPY -SIOCIWFIRST] = (iw_handler) iw_handler_get_spy,
4264 [SIOCSIWTHRSPY-SIOCIWFIRST] = (iw_handler) iw_handler_set_thrspy,
4265 [SIOCGIWTHRSPY-SIOCIWFIRST] = (iw_handler) iw_handler_get_thrspy,
4266 [SIOCSIWAP -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setwap,
4267 [SIOCGIWAP -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getwap,
4268 [SIOCSIWSCAN -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setscan,
4269 [SIOCGIWSCAN -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getscan,
4270 [SIOCSIWESSID -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setessid,
4271 [SIOCGIWESSID -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getessid,
4272 [SIOCSIWNICKN -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setnick,
4273 [SIOCGIWNICKN -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getnick,
4274 [SIOCSIWRATE -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setrate,
4275 [SIOCGIWRATE -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getrate,
4276 [SIOCSIWRTS -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setrts,
4277 [SIOCGIWRTS -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getrts,
4278 [SIOCSIWFRAG -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setfrag,
4279 [SIOCGIWFRAG -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getfrag,
4280 [SIOCGIWRETRY -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getretry,
4281 [SIOCSIWENCODE-SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setiwencode,
4282 [SIOCGIWENCODE-SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getiwencode,
4283 [SIOCSIWPOWER -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setpower,
4284 [SIOCGIWPOWER -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getpower,
4285 };
4286
4287
4288 /*
4289 Added typecasting since we no longer use iwreq_data -- Moustafa
4290 */
4291 static const iw_handler orinoco_private_handler[] = {
4292 [0] = (iw_handler) orinoco_ioctl_reset,
4293 [1] = (iw_handler) orinoco_ioctl_reset,
4294 [2] = (iw_handler) orinoco_ioctl_setport3,
4295 [3] = (iw_handler) orinoco_ioctl_getport3,
4296 [4] = (iw_handler) orinoco_ioctl_setpreamble,
4297 [5] = (iw_handler) orinoco_ioctl_getpreamble,
4298 [6] = (iw_handler) orinoco_ioctl_setibssport,
4299 [7] = (iw_handler) orinoco_ioctl_getibssport,
4300 [9] = (iw_handler) orinoco_ioctl_getrid,
4301 };
4302
4303 static const struct iw_handler_def orinoco_handler_def = {
4304 .num_standard = ARRAY_SIZE(orinoco_handler),
4305 .num_private = ARRAY_SIZE(orinoco_private_handler),
4306 .num_private_args = ARRAY_SIZE(orinoco_privtab),
4307 .standard = orinoco_handler,
4308 .private = orinoco_private_handler,
4309 .private_args = orinoco_privtab,
4310 .get_wireless_stats = orinoco_get_wireless_stats,
4311 };
4312
4313 static void orinoco_get_drvinfo(struct net_device *dev,
4314 struct ethtool_drvinfo *info)
4315 {
4316 struct orinoco_private *priv = netdev_priv(dev);
4317
4318 strncpy(info->driver, DRIVER_NAME, sizeof(info->driver) - 1);
4319 strncpy(info->version, DRIVER_VERSION, sizeof(info->version) - 1);
4320 strncpy(info->fw_version, priv->fw_name, sizeof(info->fw_version) - 1);
4321 if (dev->class_dev.dev)
4322 strncpy(info->bus_info, dev->class_dev.dev->bus_id,
4323 sizeof(info->bus_info) - 1);
4324 else
4325 snprintf(info->bus_info, sizeof(info->bus_info) - 1,
4326 "PCMCIA %p", priv->hw.iobase);
4327 }
4328
4329 static struct ethtool_ops orinoco_ethtool_ops = {
4330 .get_drvinfo = orinoco_get_drvinfo,
4331 .get_link = ethtool_op_get_link,
4332 };
4333
4334 /********************************************************************/
4335 /* Debugging */
4336 /********************************************************************/
4337
4338 #if 0
4339 static void show_rx_frame(struct orinoco_rxframe_hdr *frame)
4340 {
4341 printk(KERN_DEBUG "RX descriptor:\n");
4342 printk(KERN_DEBUG " status = 0x%04x\n", frame->desc.status);
4343 printk(KERN_DEBUG " time = 0x%08x\n", frame->desc.time);
4344 printk(KERN_DEBUG " silence = 0x%02x\n", frame->desc.silence);
4345 printk(KERN_DEBUG " signal = 0x%02x\n", frame->desc.signal);
4346 printk(KERN_DEBUG " rate = 0x%02x\n", frame->desc.rate);
4347 printk(KERN_DEBUG " rxflow = 0x%02x\n", frame->desc.rxflow);
4348 printk(KERN_DEBUG " reserved = 0x%08x\n", frame->desc.reserved);
4349
4350 printk(KERN_DEBUG "IEEE 802.11 header:\n");
4351 printk(KERN_DEBUG " frame_ctl = 0x%04x\n",
4352 frame->p80211.frame_ctl);
4353 printk(KERN_DEBUG " duration_id = 0x%04x\n",
4354 frame->p80211.duration_id);
4355 printk(KERN_DEBUG " addr1 = %02x:%02x:%02x:%02x:%02x:%02x\n",
4356 frame->p80211.addr1[0], frame->p80211.addr1[1],
4357 frame->p80211.addr1[2], frame->p80211.addr1[3],
4358 frame->p80211.addr1[4], frame->p80211.addr1[5]);
4359 printk(KERN_DEBUG " addr2 = %02x:%02x:%02x:%02x:%02x:%02x\n",
4360 frame->p80211.addr2[0], frame->p80211.addr2[1],
4361 frame->p80211.addr2[2], frame->p80211.addr2[3],
4362 frame->p80211.addr2[4], frame->p80211.addr2[5]);
4363 printk(KERN_DEBUG " addr3 = %02x:%02x:%02x:%02x:%02x:%02x\n",
4364 frame->p80211.addr3[0], frame->p80211.addr3[1],
4365 frame->p80211.addr3[2], frame->p80211.addr3[3],
4366 frame->p80211.addr3[4], frame->p80211.addr3[5]);
4367 printk(KERN_DEBUG " seq_ctl = 0x%04x\n",
4368 frame->p80211.seq_ctl);
4369 printk(KERN_DEBUG " addr4 = %02x:%02x:%02x:%02x:%02x:%02x\n",
4370 frame->p80211.addr4[0], frame->p80211.addr4[1],
4371 frame->p80211.addr4[2], frame->p80211.addr4[3],
4372 frame->p80211.addr4[4], frame->p80211.addr4[5]);
4373 printk(KERN_DEBUG " data_len = 0x%04x\n",
4374 frame->p80211.data_len);
4375
4376 printk(KERN_DEBUG "IEEE 802.3 header:\n");
4377 printk(KERN_DEBUG " dest = %02x:%02x:%02x:%02x:%02x:%02x\n",
4378 frame->p8023.h_dest[0], frame->p8023.h_dest[1],
4379 frame->p8023.h_dest[2], frame->p8023.h_dest[3],
4380 frame->p8023.h_dest[4], frame->p8023.h_dest[5]);
4381 printk(KERN_DEBUG " src = %02x:%02x:%02x:%02x:%02x:%02x\n",
4382 frame->p8023.h_source[0], frame->p8023.h_source[1],
4383 frame->p8023.h_source[2], frame->p8023.h_source[3],
4384 frame->p8023.h_source[4], frame->p8023.h_source[5]);
4385 printk(KERN_DEBUG " len = 0x%04x\n", frame->p8023.h_proto);
4386
4387 printk(KERN_DEBUG "IEEE 802.2 LLC/SNAP header:\n");
4388 printk(KERN_DEBUG " DSAP = 0x%02x\n", frame->p8022.dsap);
4389 printk(KERN_DEBUG " SSAP = 0x%02x\n", frame->p8022.ssap);
4390 printk(KERN_DEBUG " ctrl = 0x%02x\n", frame->p8022.ctrl);
4391 printk(KERN_DEBUG " OUI = %02x:%02x:%02x\n",
4392 frame->p8022.oui[0], frame->p8022.oui[1], frame->p8022.oui[2]);
4393 printk(KERN_DEBUG " ethertype = 0x%04x\n", frame->ethertype);
4394 }
4395 #endif /* 0 */
4396
4397 /********************************************************************/
4398 /* Module initialization */
4399 /********************************************************************/
4400
4401 EXPORT_SYMBOL(alloc_orinocodev);
4402 EXPORT_SYMBOL(free_orinocodev);
4403
4404 EXPORT_SYMBOL(__orinoco_up);
4405 EXPORT_SYMBOL(__orinoco_down);
4406 EXPORT_SYMBOL(orinoco_reinit_firmware);
4407
4408 EXPORT_SYMBOL(orinoco_interrupt);
4409
4410 /* Can't be declared "const" or the whole __initdata section will
4411 * become const */
4412 static char version[] __initdata = DRIVER_NAME " " DRIVER_VERSION
4413 " (David Gibson <hermes@gibson.dropbear.id.au>, "
4414 "Pavel Roskin <proski@gnu.org>, et al)";
4415
4416 static int __init init_orinoco(void)
4417 {
4418 printk(KERN_DEBUG "%s\n", version);
4419 return 0;
4420 }
4421
4422 static void __exit exit_orinoco(void)
4423 {
4424 }
4425
4426 module_init(init_orinoco);
4427 module_exit(exit_orinoco);
SocketAccessConTroL development