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[PATCH] UFS: inode->i_sem is not released in error path
[linux-2.6/verdex.git] / drivers / net / wireless / orinoco.c
blob6fd0bf736830f4c7a0694005d32b50613f05818b
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 structures as they break on ARM -- Moustafa */
206 struct hermes_tx_descriptor_802_11 {
207 /* hermes_tx_descriptor */
208 __le16 status;
209 __le16 reserved1;
210 __le16 reserved2;
211 __le32 sw_support;
212 u8 retry_count;
213 u8 tx_rate;
214 __le16 tx_control;
215
216 /* ieee80211_hdr */
217 __le16 frame_ctl;
218 __le16 duration_id;
219 u8 addr1[ETH_ALEN];
220 u8 addr2[ETH_ALEN];
221 u8 addr3[ETH_ALEN];
222 __le16 seq_ctl;
223 u8 addr4[ETH_ALEN];
224
225 __le16 data_len;
226
227 /* ethhdr */
228 u8 h_dest[ETH_ALEN]; /* destination eth addr */
229 u8 h_source[ETH_ALEN]; /* source ether addr */
230 __be16 h_proto; /* packet type ID field */
231
232 /* p8022_hdr */
233 u8 dsap;
234 u8 ssap;
235 u8 ctrl;
236 u8 oui[3];
237
238 __be16 ethertype;
239 } __attribute__ ((packed));
240
241 /* Rx frame header except compatibility 802.3 header */
242 struct hermes_rx_descriptor {
243 /* Control */
244 __le16 status;
245 __le32 time;
246 u8 silence;
247 u8 signal;
248 u8 rate;
249 u8 rxflow;
250 __le32 reserved;
251
252 /* 802.11 header */
253 __le16 frame_ctl;
254 __le16 duration_id;
255 u8 addr1[ETH_ALEN];
256 u8 addr2[ETH_ALEN];
257 u8 addr3[ETH_ALEN];
258 __le16 seq_ctl;
259 u8 addr4[ETH_ALEN];
260
261 /* Data length */
262 __le16 data_len;
263 } __attribute__ ((packed));
264
265 /********************************************************************/
266 /* Function prototypes */
267 /********************************************************************/
268
269 static int __orinoco_program_rids(struct net_device *dev);
270 static void __orinoco_set_multicast_list(struct net_device *dev);
271
272 /********************************************************************/
273 /* Internal helper functions */
274 /********************************************************************/
275
276 static inline void set_port_type(struct orinoco_private *priv)
277 {
278 switch (priv->iw_mode) {
279 case IW_MODE_INFRA:
280 priv->port_type = 1;
281 priv->createibss = 0;
282 break;
283 case IW_MODE_ADHOC:
284 if (priv->prefer_port3) {
285 priv->port_type = 3;
286 priv->createibss = 0;
287 } else {
288 priv->port_type = priv->ibss_port;
289 priv->createibss = 1;
290 }
291 break;
292 case IW_MODE_MONITOR:
293 priv->port_type = 3;
294 priv->createibss = 0;
295 break;
296 default:
297 printk(KERN_ERR "%s: Invalid priv->iw_mode in set_port_type()\n",
298 priv->ndev->name);
299 }
300 }
301
302 /********************************************************************/
303 /* Device methods */
304 /********************************************************************/
305
306 static int orinoco_open(struct net_device *dev)
307 {
308 struct orinoco_private *priv = netdev_priv(dev);
309 unsigned long flags;
310 int err;
311
312 if (orinoco_lock(priv, &flags) != 0)
313 return -EBUSY;
314
315 err = __orinoco_up(dev);
316
317 if (! err)
318 priv->open = 1;
319
320 orinoco_unlock(priv, &flags);
321
322 return err;
323 }
324
325 static int orinoco_stop(struct net_device *dev)
326 {
327 struct orinoco_private *priv = netdev_priv(dev);
328 int err = 0;
329
330 /* We mustn't use orinoco_lock() here, because we need to be
331 able to close the interface even if hw_unavailable is set
332 (e.g. as we're released after a PC Card removal) */
333 spin_lock_irq(&priv->lock);
334
335 priv->open = 0;
336
337 err = __orinoco_down(dev);
338
339 spin_unlock_irq(&priv->lock);
340
341 return err;
342 }
343
344 static struct net_device_stats *orinoco_get_stats(struct net_device *dev)
345 {
346 struct orinoco_private *priv = netdev_priv(dev);
347
348 return &priv->stats;
349 }
350
351 static struct iw_statistics *orinoco_get_wireless_stats(struct net_device *dev)
352 {
353 struct orinoco_private *priv = netdev_priv(dev);
354 hermes_t *hw = &priv->hw;
355 struct iw_statistics *wstats = &priv->wstats;
356 int err;
357 unsigned long flags;
358
359 if (! netif_device_present(dev)) {
360 printk(KERN_WARNING "%s: get_wireless_stats() called while device not present\n",
361 dev->name);
362 return NULL; /* FIXME: Can we do better than this? */
363 }
364
365 /* If busy, return the old stats. Returning NULL may cause
366 * the interface to disappear from /proc/net/wireless */
367 if (orinoco_lock(priv, &flags) != 0)
368 return wstats;
369
370 /* We can't really wait for the tallies inquiry command to
371 * complete, so we just use the previous results and trigger
372 * a new tallies inquiry command for next time - Jean II */
373 /* FIXME: Really we should wait for the inquiry to come back -
374 * as it is the stats we give don't make a whole lot of sense.
375 * Unfortunately, it's not clear how to do that within the
376 * wireless extensions framework: I think we're in user
377 * context, but a lock seems to be held by the time we get in
378 * here so we're not safe to sleep here. */
379 hermes_inquire(hw, HERMES_INQ_TALLIES);
380
381 if (priv->iw_mode == IW_MODE_ADHOC) {
382 memset(&wstats->qual, 0, sizeof(wstats->qual));
383 /* If a spy address is defined, we report stats of the
384 * first spy address - Jean II */
385 if (SPY_NUMBER(priv)) {
386 wstats->qual.qual = priv->spy_data.spy_stat[0].qual;
387 wstats->qual.level = priv->spy_data.spy_stat[0].level;
388 wstats->qual.noise = priv->spy_data.spy_stat[0].noise;
389 wstats->qual.updated = priv->spy_data.spy_stat[0].updated;
390 }
391 } else {
392 struct {
393 __le16 qual, signal, noise;
394 } __attribute__ ((packed)) cq;
395
396 err = HERMES_READ_RECORD(hw, USER_BAP,
397 HERMES_RID_COMMSQUALITY, &cq);
398
399 if (!err) {
400 wstats->qual.qual = (int)le16_to_cpu(cq.qual);
401 wstats->qual.level = (int)le16_to_cpu(cq.signal) - 0x95;
402 wstats->qual.noise = (int)le16_to_cpu(cq.noise) - 0x95;
403 wstats->qual.updated = 7;
404 }
405 }
406
407 orinoco_unlock(priv, &flags);
408 return wstats;
409 }
410
411 static void orinoco_set_multicast_list(struct net_device *dev)
412 {
413 struct orinoco_private *priv = netdev_priv(dev);
414 unsigned long flags;
415
416 if (orinoco_lock(priv, &flags) != 0) {
417 printk(KERN_DEBUG "%s: orinoco_set_multicast_list() "
418 "called when hw_unavailable\n", dev->name);
419 return;
420 }
421
422 __orinoco_set_multicast_list(dev);
423 orinoco_unlock(priv, &flags);
424 }
425
426 static int orinoco_change_mtu(struct net_device *dev, int new_mtu)
427 {
428 struct orinoco_private *priv = netdev_priv(dev);
429
430 if ( (new_mtu < ORINOCO_MIN_MTU) || (new_mtu > ORINOCO_MAX_MTU) )
431 return -EINVAL;
432
433 if ( (new_mtu + ENCAPS_OVERHEAD + IEEE80211_HLEN) >
434 (priv->nicbuf_size - ETH_HLEN) )
435 return -EINVAL;
436
437 dev->mtu = new_mtu;
438
439 return 0;
440 }
441
442 /********************************************************************/
443 /* Tx path */
444 /********************************************************************/
445
446 static int orinoco_xmit(struct sk_buff *skb, struct net_device *dev)
447 {
448 struct orinoco_private *priv = netdev_priv(dev);
449 struct net_device_stats *stats = &priv->stats;
450 hermes_t *hw = &priv->hw;
451 int err = 0;
452 u16 txfid = priv->txfid;
453 char *p;
454 struct ethhdr *eh;
455 int len, data_len, data_off;
456 struct hermes_tx_descriptor desc;
457 unsigned long flags;
458
459 TRACE_ENTER(dev->name);
460
461 if (! netif_running(dev)) {
462 printk(KERN_ERR "%s: Tx on stopped device!\n",
463 dev->name);
464 TRACE_EXIT(dev->name);
465 return 1;
466 }
467
468 if (netif_queue_stopped(dev)) {
469 printk(KERN_DEBUG "%s: Tx while transmitter busy!\n",
470 dev->name);
471 TRACE_EXIT(dev->name);
472 return 1;
473 }
474
475 if (orinoco_lock(priv, &flags) != 0) {
476 printk(KERN_ERR "%s: orinoco_xmit() called while hw_unavailable\n",
477 dev->name);
478 TRACE_EXIT(dev->name);
479 return 1;
480 }
481
482 if (! netif_carrier_ok(dev) || (priv->iw_mode == IW_MODE_MONITOR)) {
483 /* Oops, the firmware hasn't established a connection,
484 silently drop the packet (this seems to be the
485 safest approach). */
486 stats->tx_errors++;
487 orinoco_unlock(priv, &flags);
488 dev_kfree_skb(skb);
489 TRACE_EXIT(dev->name);
490 return 0;
491 }
492
493 /* Length of the packet body */
494 /* FIXME: what if the skb is smaller than this? */
495 len = max_t(int, ALIGN(skb->len, 2), ETH_ZLEN);
496 skb = skb_padto(skb, len);
497 if (skb == NULL)
498 goto fail;
499 len -= ETH_HLEN;
500
501 eh = (struct ethhdr *)skb->data;
502
503 memset(&desc, 0, sizeof(desc));
504 desc.tx_control = cpu_to_le16(HERMES_TXCTRL_TX_OK | HERMES_TXCTRL_TX_EX);
505 err = hermes_bap_pwrite(hw, USER_BAP, &desc, sizeof(desc), txfid, 0);
506 if (err) {
507 if (net_ratelimit())
508 printk(KERN_ERR "%s: Error %d writing Tx descriptor "
509 "to BAP\n", dev->name, err);
510 stats->tx_errors++;
511 goto fail;
512 }
513
514 /* Clear the 802.11 header and data length fields - some
515 * firmwares (e.g. Lucent/Agere 8.xx) appear to get confused
516 * if this isn't done. */
517 hermes_clear_words(hw, HERMES_DATA0,
518 HERMES_802_3_OFFSET - HERMES_802_11_OFFSET);
519
520 /* Encapsulate Ethernet-II frames */
521 if (ntohs(eh->h_proto) > ETH_DATA_LEN) { /* Ethernet-II frame */
522 struct header_struct hdr;
523 data_len = len;
524 data_off = HERMES_802_3_OFFSET + sizeof(hdr);
525 p = skb->data + ETH_HLEN;
526
527 /* 802.3 header */
528 memcpy(hdr.dest, eh->h_dest, ETH_ALEN);
529 memcpy(hdr.src, eh->h_source, ETH_ALEN);
530 hdr.len = htons(data_len + ENCAPS_OVERHEAD);
531
532 /* 802.2 header */
533 memcpy(&hdr.dsap, &encaps_hdr, sizeof(encaps_hdr));
534
535 hdr.ethertype = eh->h_proto;
536 err = hermes_bap_pwrite(hw, USER_BAP, &hdr, sizeof(hdr),
537 txfid, HERMES_802_3_OFFSET);
538 if (err) {
539 if (net_ratelimit())
540 printk(KERN_ERR "%s: Error %d writing packet "
541 "header to BAP\n", dev->name, err);
542 stats->tx_errors++;
543 goto fail;
544 }
545 /* Actual xfer length - allow for padding */
546 len = ALIGN(data_len, 2);
547 if (len < ETH_ZLEN - ETH_HLEN)
548 len = ETH_ZLEN - ETH_HLEN;
549 } else { /* IEEE 802.3 frame */
550 data_len = len + ETH_HLEN;
551 data_off = HERMES_802_3_OFFSET;
552 p = skb->data;
553 /* Actual xfer length - round up for odd length packets */
554 len = ALIGN(data_len, 2);
555 if (len < ETH_ZLEN)
556 len = ETH_ZLEN;
557 }
558
559 err = hermes_bap_pwrite_pad(hw, USER_BAP, p, data_len, len,
560 txfid, data_off);
561 if (err) {
562 printk(KERN_ERR "%s: Error %d writing packet to BAP\n",
563 dev->name, err);
564 stats->tx_errors++;
565 goto fail;
566 }
567
568 /* Finally, we actually initiate the send */
569 netif_stop_queue(dev);
570
571 err = hermes_docmd_wait(hw, HERMES_CMD_TX | HERMES_CMD_RECL,
572 txfid, NULL);
573 if (err) {
574 netif_start_queue(dev);
575 if (net_ratelimit())
576 printk(KERN_ERR "%s: Error %d transmitting packet\n",
577 dev->name, err);
578 stats->tx_errors++;
579 goto fail;
580 }
581
582 dev->trans_start = jiffies;
583 stats->tx_bytes += data_off + data_len;
584
585 orinoco_unlock(priv, &flags);
586
587 dev_kfree_skb(skb);
588
589 TRACE_EXIT(dev->name);
590
591 return 0;
592 fail:
593 TRACE_EXIT(dev->name);
594
595 orinoco_unlock(priv, &flags);
596 return err;
597 }
598
599 static void __orinoco_ev_alloc(struct net_device *dev, hermes_t *hw)
600 {
601 struct orinoco_private *priv = netdev_priv(dev);
602 u16 fid = hermes_read_regn(hw, ALLOCFID);
603
604 if (fid != priv->txfid) {
605 if (fid != DUMMY_FID)
606 printk(KERN_WARNING "%s: Allocate event on unexpected fid (%04X)\n",
607 dev->name, fid);
608 return;
609 }
610
611 hermes_write_regn(hw, ALLOCFID, DUMMY_FID);
612 }
613
614 static void __orinoco_ev_tx(struct net_device *dev, hermes_t *hw)
615 {
616 struct orinoco_private *priv = netdev_priv(dev);
617 struct net_device_stats *stats = &priv->stats;
618
619 stats->tx_packets++;
620
621 netif_wake_queue(dev);
622
623 hermes_write_regn(hw, TXCOMPLFID, DUMMY_FID);
624 }
625
626 static void __orinoco_ev_txexc(struct net_device *dev, hermes_t *hw)
627 {
628 struct orinoco_private *priv = netdev_priv(dev);
629 struct net_device_stats *stats = &priv->stats;
630 u16 fid = hermes_read_regn(hw, TXCOMPLFID);
631 u16 status;
632 struct hermes_tx_descriptor_802_11 hdr;
633 int err = 0;
634
635 if (fid == DUMMY_FID)
636 return; /* Nothing's really happened */
637
638 /* Read part of the frame header - we need status and addr1 */
639 err = hermes_bap_pread(hw, IRQ_BAP, &hdr,
640 offsetof(struct hermes_tx_descriptor_802_11,
641 addr2),
642 fid, 0);
643
644 hermes_write_regn(hw, TXCOMPLFID, DUMMY_FID);
645 stats->tx_errors++;
646
647 if (err) {
648 printk(KERN_WARNING "%s: Unable to read descriptor on Tx error "
649 "(FID=%04X error %d)\n",
650 dev->name, fid, err);
651 return;
652 }
653
654 DEBUG(1, "%s: Tx error, err %d (FID=%04X)\n", dev->name,
655 err, fid);
656
657 /* We produce a TXDROP event only for retry or lifetime
658 * exceeded, because that's the only status that really mean
659 * that this particular node went away.
660 * Other errors means that *we* screwed up. - Jean II */
661 status = le16_to_cpu(hdr.status);
662 if (status & (HERMES_TXSTAT_RETRYERR | HERMES_TXSTAT_AGEDERR)) {
663 union iwreq_data wrqu;
664
665 /* Copy 802.11 dest address.
666 * We use the 802.11 header because the frame may
667 * not be 802.3 or may be mangled...
668 * In Ad-Hoc mode, it will be the node address.
669 * In managed mode, it will be most likely the AP addr
670 * User space will figure out how to convert it to
671 * whatever it needs (IP address or else).
672 * - Jean II */
673 memcpy(wrqu.addr.sa_data, hdr.addr1, ETH_ALEN);
674 wrqu.addr.sa_family = ARPHRD_ETHER;
675
676 /* Send event to user space */
677 wireless_send_event(dev, IWEVTXDROP, &wrqu, NULL);
678 }
679
680 netif_wake_queue(dev);
681 }
682
683 static void orinoco_tx_timeout(struct net_device *dev)
684 {
685 struct orinoco_private *priv = netdev_priv(dev);
686 struct net_device_stats *stats = &priv->stats;
687 struct hermes *hw = &priv->hw;
688
689 printk(KERN_WARNING "%s: Tx timeout! "
690 "ALLOCFID=%04x, TXCOMPLFID=%04x, EVSTAT=%04x\n",
691 dev->name, hermes_read_regn(hw, ALLOCFID),
692 hermes_read_regn(hw, TXCOMPLFID), hermes_read_regn(hw, EVSTAT));
693
694 stats->tx_errors++;
695
696 schedule_work(&priv->reset_work);
697 }
698
699 /********************************************************************/
700 /* Rx path (data frames) */
701 /********************************************************************/
702
703 /* Does the frame have a SNAP header indicating it should be
704 * de-encapsulated to Ethernet-II? */
705 static inline int is_ethersnap(void *_hdr)
706 {
707 u8 *hdr = _hdr;
708
709 /* We de-encapsulate all packets which, a) have SNAP headers
710 * (i.e. SSAP=DSAP=0xaa and CTRL=0x3 in the 802.2 LLC header
711 * and where b) the OUI of the SNAP header is 00:00:00 or
712 * 00:00:f8 - we need both because different APs appear to use
713 * different OUIs for some reason */
714 return (memcmp(hdr, &encaps_hdr, 5) == 0)
715 && ( (hdr[5] == 0x00) || (hdr[5] == 0xf8) );
716 }
717
718 static inline void orinoco_spy_gather(struct net_device *dev, u_char *mac,
719 int level, int noise)
720 {
721 struct iw_quality wstats;
722 wstats.level = level - 0x95;
723 wstats.noise = noise - 0x95;
724 wstats.qual = (level > noise) ? (level - noise) : 0;
725 wstats.updated = 7;
726 /* Update spy records */
727 wireless_spy_update(dev, mac, &wstats);
728 }
729
730 static void orinoco_stat_gather(struct net_device *dev,
731 struct sk_buff *skb,
732 struct hermes_rx_descriptor *desc)
733 {
734 struct orinoco_private *priv = netdev_priv(dev);
735
736 /* Using spy support with lots of Rx packets, like in an
737 * infrastructure (AP), will really slow down everything, because
738 * the MAC address must be compared to each entry of the spy list.
739 * If the user really asks for it (set some address in the
740 * spy list), we do it, but he will pay the price.
741 * Note that to get here, you need both WIRELESS_SPY
742 * compiled in AND some addresses in the list !!!
743 */
744 /* Note : gcc will optimise the whole section away if
745 * WIRELESS_SPY is not defined... - Jean II */
746 if (SPY_NUMBER(priv)) {
747 orinoco_spy_gather(dev, skb->mac.raw + ETH_ALEN,
748 desc->signal, desc->silence);
749 }
750 }
751
752 /*
753 * orinoco_rx_monitor - handle received monitor frames.
754 *
755 * Arguments:
756 * dev network device
757 * rxfid received FID
758 * desc rx descriptor of the frame
759 *
760 * Call context: interrupt
761 */
762 static void orinoco_rx_monitor(struct net_device *dev, u16 rxfid,
763 struct hermes_rx_descriptor *desc)
764 {
765 u32 hdrlen = 30; /* return full header by default */
766 u32 datalen = 0;
767 u16 fc;
768 int err;
769 int len;
770 struct sk_buff *skb;
771 struct orinoco_private *priv = netdev_priv(dev);
772 struct net_device_stats *stats = &priv->stats;
773 hermes_t *hw = &priv->hw;
774
775 len = le16_to_cpu(desc->data_len);
776
777 /* Determine the size of the header and the data */
778 fc = le16_to_cpu(desc->frame_ctl);
779 switch (fc & IEEE80211_FCTL_FTYPE) {
780 case IEEE80211_FTYPE_DATA:
781 if ((fc & IEEE80211_FCTL_TODS)
782 && (fc & IEEE80211_FCTL_FROMDS))
783 hdrlen = 30;
784 else
785 hdrlen = 24;
786 datalen = len;
787 break;
788 case IEEE80211_FTYPE_MGMT:
789 hdrlen = 24;
790 datalen = len;
791 break;
792 case IEEE80211_FTYPE_CTL:
793 switch (fc & IEEE80211_FCTL_STYPE) {
794 case IEEE80211_STYPE_PSPOLL:
795 case IEEE80211_STYPE_RTS:
796 case IEEE80211_STYPE_CFEND:
797 case IEEE80211_STYPE_CFENDACK:
798 hdrlen = 16;
799 break;
800 case IEEE80211_STYPE_CTS:
801 case IEEE80211_STYPE_ACK:
802 hdrlen = 10;
803 break;
804 }
805 break;
806 default:
807 /* Unknown frame type */
808 break;
809 }
810
811 /* sanity check the length */
812 if (datalen > IEEE80211_DATA_LEN + 12) {
813 printk(KERN_DEBUG "%s: oversized monitor frame, "
814 "data length = %d\n", dev->name, datalen);
815 err = -EIO;
816 stats->rx_length_errors++;
817 goto update_stats;
818 }
819
820 skb = dev_alloc_skb(hdrlen + datalen);
821 if (!skb) {
822 printk(KERN_WARNING "%s: Cannot allocate skb for monitor frame\n",
823 dev->name);
824 err = -ENOMEM;
825 goto drop;
826 }
827
828 /* Copy the 802.11 header to the skb */
829 memcpy(skb_put(skb, hdrlen), &(desc->frame_ctl), hdrlen);
830 skb->mac.raw = skb->data;
831
832 /* If any, copy the data from the card to the skb */
833 if (datalen > 0) {
834 err = hermes_bap_pread(hw, IRQ_BAP, skb_put(skb, datalen),
835 ALIGN(datalen, 2), rxfid,
836 HERMES_802_2_OFFSET);
837 if (err) {
838 printk(KERN_ERR "%s: error %d reading monitor frame\n",
839 dev->name, err);
840 goto drop;
841 }
842 }
843
844 skb->dev = dev;
845 skb->ip_summed = CHECKSUM_NONE;
846 skb->pkt_type = PACKET_OTHERHOST;
847 skb->protocol = __constant_htons(ETH_P_802_2);
848
849 dev->last_rx = jiffies;
850 stats->rx_packets++;
851 stats->rx_bytes += skb->len;
852
853 netif_rx(skb);
854 return;
855
856 drop:
857 dev_kfree_skb_irq(skb);
858 update_stats:
859 stats->rx_errors++;
860 stats->rx_dropped++;
861 }
862
863 static void __orinoco_ev_rx(struct net_device *dev, hermes_t *hw)
864 {
865 struct orinoco_private *priv = netdev_priv(dev);
866 struct net_device_stats *stats = &priv->stats;
867 struct iw_statistics *wstats = &priv->wstats;
868 struct sk_buff *skb = NULL;
869 u16 rxfid, status, fc;
870 int length;
871 struct hermes_rx_descriptor desc;
872 struct ethhdr *hdr;
873 int err;
874
875 rxfid = hermes_read_regn(hw, RXFID);
876
877 err = hermes_bap_pread(hw, IRQ_BAP, &desc, sizeof(desc),
878 rxfid, 0);
879 if (err) {
880 printk(KERN_ERR "%s: error %d reading Rx descriptor. "
881 "Frame dropped.\n", dev->name, err);
882 goto update_stats;
883 }
884
885 status = le16_to_cpu(desc.status);
886
887 if (status & HERMES_RXSTAT_BADCRC) {
888 DEBUG(1, "%s: Bad CRC on Rx. Frame dropped.\n",
889 dev->name);
890 stats->rx_crc_errors++;
891 goto update_stats;
892 }
893
894 /* Handle frames in monitor mode */
895 if (priv->iw_mode == IW_MODE_MONITOR) {
896 orinoco_rx_monitor(dev, rxfid, &desc);
897 return;
898 }
899
900 if (status & HERMES_RXSTAT_UNDECRYPTABLE) {
901 DEBUG(1, "%s: Undecryptable frame on Rx. Frame dropped.\n",
902 dev->name);
903 wstats->discard.code++;
904 goto update_stats;
905 }
906
907 length = le16_to_cpu(desc.data_len);
908 fc = le16_to_cpu(desc.frame_ctl);
909
910 /* Sanity checks */
911 if (length < 3) { /* No for even an 802.2 LLC header */
912 /* At least on Symbol firmware with PCF we get quite a
913 lot of these legitimately - Poll frames with no
914 data. */
915 return;
916 }
917 if (length > IEEE80211_DATA_LEN) {
918 printk(KERN_WARNING "%s: Oversized frame received (%d bytes)\n",
919 dev->name, length);
920 stats->rx_length_errors++;
921 goto update_stats;
922 }
923
924 /* We need space for the packet data itself, plus an ethernet
925 header, plus 2 bytes so we can align the IP header on a
926 32bit boundary, plus 1 byte so we can read in odd length
927 packets from the card, which has an IO granularity of 16
928 bits */
929 skb = dev_alloc_skb(length+ETH_HLEN+2+1);
930 if (!skb) {
931 printk(KERN_WARNING "%s: Can't allocate skb for Rx\n",
932 dev->name);
933 goto update_stats;
934 }
935
936 /* We'll prepend the header, so reserve space for it. The worst
937 case is no decapsulation, when 802.3 header is prepended and
938 nothing is removed. 2 is for aligning the IP header. */
939 skb_reserve(skb, ETH_HLEN + 2);
940
941 err = hermes_bap_pread(hw, IRQ_BAP, skb_put(skb, length),
942 ALIGN(length, 2), rxfid,
943 HERMES_802_2_OFFSET);
944 if (err) {
945 printk(KERN_ERR "%s: error %d reading frame. "
946 "Frame dropped.\n", dev->name, err);
947 goto drop;
948 }
949
950 /* Handle decapsulation
951 * In most cases, the firmware tell us about SNAP frames.
952 * For some reason, the SNAP frames sent by LinkSys APs
953 * are not properly recognised by most firmwares.
954 * So, check ourselves */
955 if (length >= ENCAPS_OVERHEAD &&
956 (((status & HERMES_RXSTAT_MSGTYPE) == HERMES_RXSTAT_1042) ||
957 ((status & HERMES_RXSTAT_MSGTYPE) == HERMES_RXSTAT_TUNNEL) ||
958 is_ethersnap(skb->data))) {
959 /* These indicate a SNAP within 802.2 LLC within
960 802.11 frame which we'll need to de-encapsulate to
961 the original EthernetII frame. */
962 hdr = (struct ethhdr *)skb_push(skb, ETH_HLEN - ENCAPS_OVERHEAD);
963 } else {
964 /* 802.3 frame - prepend 802.3 header as is */
965 hdr = (struct ethhdr *)skb_push(skb, ETH_HLEN);
966 hdr->h_proto = htons(length);
967 }
968 memcpy(hdr->h_dest, desc.addr1, ETH_ALEN);
969 if (fc & IEEE80211_FCTL_FROMDS)
970 memcpy(hdr->h_source, desc.addr3, ETH_ALEN);
971 else
972 memcpy(hdr->h_source, desc.addr2, ETH_ALEN);
973
974 dev->last_rx = jiffies;
975 skb->dev = dev;
976 skb->protocol = eth_type_trans(skb, dev);
977 skb->ip_summed = CHECKSUM_NONE;
978 if (fc & IEEE80211_FCTL_TODS)
979 skb->pkt_type = PACKET_OTHERHOST;
980
981 /* Process the wireless stats if needed */
982 orinoco_stat_gather(dev, skb, &desc);
983
984 /* Pass the packet to the networking stack */
985 netif_rx(skb);
986 stats->rx_packets++;
987 stats->rx_bytes += length;
988
989 return;
990
991 drop:
992 dev_kfree_skb_irq(skb);
993 update_stats:
994 stats->rx_errors++;
995 stats->rx_dropped++;
996 }
997
998 /********************************************************************/
999 /* Rx path (info frames) */
1000 /********************************************************************/
1001
1002 static void print_linkstatus(struct net_device *dev, u16 status)
1003 {
1004 char * s;
1005
1006 if (suppress_linkstatus)
1007 return;
1008
1009 switch (status) {
1010 case HERMES_LINKSTATUS_NOT_CONNECTED:
1011 s = "Not Connected";
1012 break;
1013 case HERMES_LINKSTATUS_CONNECTED:
1014 s = "Connected";
1015 break;
1016 case HERMES_LINKSTATUS_DISCONNECTED:
1017 s = "Disconnected";
1018 break;
1019 case HERMES_LINKSTATUS_AP_CHANGE:
1020 s = "AP Changed";
1021 break;
1022 case HERMES_LINKSTATUS_AP_OUT_OF_RANGE:
1023 s = "AP Out of Range";
1024 break;
1025 case HERMES_LINKSTATUS_AP_IN_RANGE:
1026 s = "AP In Range";
1027 break;
1028 case HERMES_LINKSTATUS_ASSOC_FAILED:
1029 s = "Association Failed";
1030 break;
1031 default:
1032 s = "UNKNOWN";
1033 }
1034
1035 printk(KERN_INFO "%s: New link status: %s (%04x)\n",
1036 dev->name, s, status);
1037 }
1038
1039 /* Search scan results for requested BSSID, join it if found */
1040 static void orinoco_join_ap(struct net_device *dev)
1041 {
1042 struct orinoco_private *priv = netdev_priv(dev);
1043 struct hermes *hw = &priv->hw;
1044 int err;
1045 unsigned long flags;
1046 struct join_req {
1047 u8 bssid[ETH_ALEN];
1048 __le16 channel;
1049 } __attribute__ ((packed)) req;
1050 const int atom_len = offsetof(struct prism2_scan_apinfo, atim);
1051 struct prism2_scan_apinfo *atom = NULL;
1052 int offset = 4;
1053 int found = 0;
1054 u8 *buf;
1055 u16 len;
1056
1057 /* Allocate buffer for scan results */
1058 buf = kmalloc(MAX_SCAN_LEN, GFP_KERNEL);
1059 if (! buf)
1060 return;
1061
1062 if (orinoco_lock(priv, &flags) != 0)
1063 goto fail_lock;
1064
1065 /* Sanity checks in case user changed something in the meantime */
1066 if (! priv->bssid_fixed)
1067 goto out;
1068
1069 if (strlen(priv->desired_essid) == 0)
1070 goto out;
1071
1072 /* Read scan results from the firmware */
1073 err = hermes_read_ltv(hw, USER_BAP,
1074 HERMES_RID_SCANRESULTSTABLE,
1075 MAX_SCAN_LEN, &len, buf);
1076 if (err) {
1077 printk(KERN_ERR "%s: Cannot read scan results\n",
1078 dev->name);
1079 goto out;
1080 }
1081
1082 len = HERMES_RECLEN_TO_BYTES(len);
1083
1084 /* Go through the scan results looking for the channel of the AP
1085 * we were requested to join */
1086 for (; offset + atom_len <= len; offset += atom_len) {
1087 atom = (struct prism2_scan_apinfo *) (buf + offset);
1088 if (memcmp(&atom->bssid, priv->desired_bssid, ETH_ALEN) == 0) {
1089 found = 1;
1090 break;
1091 }
1092 }
1093
1094 if (! found) {
1095 DEBUG(1, "%s: Requested AP not found in scan results\n",
1096 dev->name);
1097 goto out;
1098 }
1099
1100 memcpy(req.bssid, priv->desired_bssid, ETH_ALEN);
1101 req.channel = atom->channel; /* both are little-endian */
1102 err = HERMES_WRITE_RECORD(hw, USER_BAP, HERMES_RID_CNFJOINREQUEST,
1103 &req);
1104 if (err)
1105 printk(KERN_ERR "%s: Error issuing join request\n", dev->name);
1106
1107 out:
1108 orinoco_unlock(priv, &flags);
1109
1110 fail_lock:
1111 kfree(buf);
1112 }
1113
1114 /* Send new BSSID to userspace */
1115 static void orinoco_send_wevents(struct net_device *dev)
1116 {
1117 struct orinoco_private *priv = netdev_priv(dev);
1118 struct hermes *hw = &priv->hw;
1119 union iwreq_data wrqu;
1120 int err;
1121 unsigned long flags;
1122
1123 if (orinoco_lock(priv, &flags) != 0)
1124 return;
1125
1126 err = hermes_read_ltv(hw, IRQ_BAP, HERMES_RID_CURRENTBSSID,
1127 ETH_ALEN, NULL, wrqu.ap_addr.sa_data);
1128 if (err != 0)
1129 goto out;
1130
1131 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
1132
1133 /* Send event to user space */
1134 wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
1135
1136 out:
1137 orinoco_unlock(priv, &flags);
1138 }
1139
1140 static void __orinoco_ev_info(struct net_device *dev, hermes_t *hw)
1141 {
1142 struct orinoco_private *priv = netdev_priv(dev);
1143 u16 infofid;
1144 struct {
1145 __le16 len;
1146 __le16 type;
1147 } __attribute__ ((packed)) info;
1148 int len, type;
1149 int err;
1150
1151 /* This is an answer to an INQUIRE command that we did earlier,
1152 * or an information "event" generated by the card
1153 * The controller return to us a pseudo frame containing
1154 * the information in question - Jean II */
1155 infofid = hermes_read_regn(hw, INFOFID);
1156
1157 /* Read the info frame header - don't try too hard */
1158 err = hermes_bap_pread(hw, IRQ_BAP, &info, sizeof(info),
1159 infofid, 0);
1160 if (err) {
1161 printk(KERN_ERR "%s: error %d reading info frame. "
1162 "Frame dropped.\n", dev->name, err);
1163 return;
1164 }
1165
1166 len = HERMES_RECLEN_TO_BYTES(le16_to_cpu(info.len));
1167 type = le16_to_cpu(info.type);
1168
1169 switch (type) {
1170 case HERMES_INQ_TALLIES: {
1171 struct hermes_tallies_frame tallies;
1172 struct iw_statistics *wstats = &priv->wstats;
1173
1174 if (len > sizeof(tallies)) {
1175 printk(KERN_WARNING "%s: Tallies frame too long (%d bytes)\n",
1176 dev->name, len);
1177 len = sizeof(tallies);
1178 }
1179
1180 err = hermes_bap_pread(hw, IRQ_BAP, &tallies, len,
1181 infofid, sizeof(info));
1182 if (err)
1183 break;
1184
1185 /* Increment our various counters */
1186 /* wstats->discard.nwid - no wrong BSSID stuff */
1187 wstats->discard.code +=
1188 le16_to_cpu(tallies.RxWEPUndecryptable);
1189 if (len == sizeof(tallies))
1190 wstats->discard.code +=
1191 le16_to_cpu(tallies.RxDiscards_WEPICVError) +
1192 le16_to_cpu(tallies.RxDiscards_WEPExcluded);
1193 wstats->discard.misc +=
1194 le16_to_cpu(tallies.TxDiscardsWrongSA);
1195 wstats->discard.fragment +=
1196 le16_to_cpu(tallies.RxMsgInBadMsgFragments);
1197 wstats->discard.retries +=
1198 le16_to_cpu(tallies.TxRetryLimitExceeded);
1199 /* wstats->miss.beacon - no match */
1200 }
1201 break;
1202 case HERMES_INQ_LINKSTATUS: {
1203 struct hermes_linkstatus linkstatus;
1204 u16 newstatus;
1205 int connected;
1206
1207 if (priv->iw_mode == IW_MODE_MONITOR)
1208 break;
1209
1210 if (len != sizeof(linkstatus)) {
1211 printk(KERN_WARNING "%s: Unexpected size for linkstatus frame (%d bytes)\n",
1212 dev->name, len);
1213 break;
1214 }
1215
1216 err = hermes_bap_pread(hw, IRQ_BAP, &linkstatus, len,
1217 infofid, sizeof(info));
1218 if (err)
1219 break;
1220 newstatus = le16_to_cpu(linkstatus.linkstatus);
1221
1222 /* Symbol firmware uses "out of range" to signal that
1223 * the hostscan frame can be requested. */
1224 if (newstatus == HERMES_LINKSTATUS_AP_OUT_OF_RANGE &&
1225 priv->firmware_type == FIRMWARE_TYPE_SYMBOL &&
1226 priv->has_hostscan && priv->scan_inprogress) {
1227 hermes_inquire(hw, HERMES_INQ_HOSTSCAN_SYMBOL);
1228 break;
1229 }
1230
1231 connected = (newstatus == HERMES_LINKSTATUS_CONNECTED)
1232 || (newstatus == HERMES_LINKSTATUS_AP_CHANGE)
1233 || (newstatus == HERMES_LINKSTATUS_AP_IN_RANGE);
1234
1235 if (connected)
1236 netif_carrier_on(dev);
1237 else if (!ignore_disconnect)
1238 netif_carrier_off(dev);
1239
1240 if (newstatus != priv->last_linkstatus) {
1241 priv->last_linkstatus = newstatus;
1242 print_linkstatus(dev, newstatus);
1243 /* The info frame contains only one word which is the
1244 * status (see hermes.h). The status is pretty boring
1245 * in itself, that's why we export the new BSSID...
1246 * Jean II */
1247 schedule_work(&priv->wevent_work);
1248 }
1249 }
1250 break;
1251 case HERMES_INQ_SCAN:
1252 if (!priv->scan_inprogress && priv->bssid_fixed &&
1253 priv->firmware_type == FIRMWARE_TYPE_INTERSIL) {
1254 schedule_work(&priv->join_work);
1255 break;
1256 }
1257 /* fall through */
1258 case HERMES_INQ_HOSTSCAN:
1259 case HERMES_INQ_HOSTSCAN_SYMBOL: {
1260 /* Result of a scanning. Contains information about
1261 * cells in the vicinity - Jean II */
1262 union iwreq_data wrqu;
1263 unsigned char *buf;
1264
1265 /* Sanity check */
1266 if (len > 4096) {
1267 printk(KERN_WARNING "%s: Scan results too large (%d bytes)\n",
1268 dev->name, len);
1269 break;
1270 }
1271
1272 /* We are a strict producer. If the previous scan results
1273 * have not been consumed, we just have to drop this
1274 * frame. We can't remove the previous results ourselves,
1275 * that would be *very* racy... Jean II */
1276 if (priv->scan_result != NULL) {
1277 printk(KERN_WARNING "%s: Previous scan results not consumed, dropping info frame.\n", dev->name);
1278 break;
1279 }
1280
1281 /* Allocate buffer for results */
1282 buf = kmalloc(len, GFP_ATOMIC);
1283 if (buf == NULL)
1284 /* No memory, so can't printk()... */
1285 break;
1286
1287 /* Read scan data */
1288 err = hermes_bap_pread(hw, IRQ_BAP, (void *) buf, len,
1289 infofid, sizeof(info));
1290 if (err) {
1291 kfree(buf);
1292 break;
1293 }
1294
1295 #ifdef ORINOCO_DEBUG
1296 {
1297 int i;
1298 printk(KERN_DEBUG "Scan result [%02X", buf[0]);
1299 for(i = 1; i < (len * 2); i++)
1300 printk(":%02X", buf[i]);
1301 printk("]\n");
1302 }
1303 #endif /* ORINOCO_DEBUG */
1304
1305 /* Allow the clients to access the results */
1306 priv->scan_len = len;
1307 priv->scan_result = buf;
1308
1309 /* Send an empty event to user space.
1310 * We don't send the received data on the event because
1311 * it would require us to do complex transcoding, and
1312 * we want to minimise the work done in the irq handler
1313 * Use a request to extract the data - Jean II */
1314 wrqu.data.length = 0;
1315 wrqu.data.flags = 0;
1316 wireless_send_event(dev, SIOCGIWSCAN, &wrqu, NULL);
1317 }
1318 break;
1319 case HERMES_INQ_SEC_STAT_AGERE:
1320 /* Security status (Agere specific) */
1321 /* Ignore this frame for now */
1322 if (priv->firmware_type == FIRMWARE_TYPE_AGERE)
1323 break;
1324 /* fall through */
1325 default:
1326 printk(KERN_DEBUG "%s: Unknown information frame received: "
1327 "type 0x%04x, length %d\n", dev->name, type, len);
1328 /* We don't actually do anything about it */
1329 break;
1330 }
1331 }
1332
1333 static void __orinoco_ev_infdrop(struct net_device *dev, hermes_t *hw)
1334 {
1335 if (net_ratelimit())
1336 printk(KERN_DEBUG "%s: Information frame lost.\n", dev->name);
1337 }
1338
1339 /********************************************************************/
1340 /* Internal hardware control routines */
1341 /********************************************************************/
1342
1343 int __orinoco_up(struct net_device *dev)
1344 {
1345 struct orinoco_private *priv = netdev_priv(dev);
1346 struct hermes *hw = &priv->hw;
1347 int err;
1348
1349 netif_carrier_off(dev); /* just to make sure */
1350
1351 err = __orinoco_program_rids(dev);
1352 if (err) {
1353 printk(KERN_ERR "%s: Error %d configuring card\n",
1354 dev->name, err);
1355 return err;
1356 }
1357
1358 /* Fire things up again */
1359 hermes_set_irqmask(hw, ORINOCO_INTEN);
1360 err = hermes_enable_port(hw, 0);
1361 if (err) {
1362 printk(KERN_ERR "%s: Error %d enabling MAC port\n",
1363 dev->name, err);
1364 return err;
1365 }
1366
1367 netif_start_queue(dev);
1368
1369 return 0;
1370 }
1371
1372 int __orinoco_down(struct net_device *dev)
1373 {
1374 struct orinoco_private *priv = netdev_priv(dev);
1375 struct hermes *hw = &priv->hw;
1376 int err;
1377
1378 netif_stop_queue(dev);
1379
1380 if (! priv->hw_unavailable) {
1381 if (! priv->broken_disableport) {
1382 err = hermes_disable_port(hw, 0);
1383 if (err) {
1384 /* Some firmwares (e.g. Intersil 1.3.x) seem
1385 * to have problems disabling the port, oh
1386 * well, too bad. */
1387 printk(KERN_WARNING "%s: Error %d disabling MAC port\n",
1388 dev->name, err);
1389 priv->broken_disableport = 1;
1390 }
1391 }
1392 hermes_set_irqmask(hw, 0);
1393 hermes_write_regn(hw, EVACK, 0xffff);
1394 }
1395
1396 /* firmware will have to reassociate */
1397 netif_carrier_off(dev);
1398 priv->last_linkstatus = 0xffff;
1399
1400 return 0;
1401 }
1402
1403 int orinoco_reinit_firmware(struct net_device *dev)
1404 {
1405 struct orinoco_private *priv = netdev_priv(dev);
1406 struct hermes *hw = &priv->hw;
1407 int err;
1408
1409 err = hermes_init(hw);
1410 if (err)
1411 return err;
1412
1413 err = hermes_allocate(hw, priv->nicbuf_size, &priv->txfid);
1414 if (err == -EIO && priv->nicbuf_size > TX_NICBUF_SIZE_BUG) {
1415 /* Try workaround for old Symbol firmware bug */
1416 printk(KERN_WARNING "%s: firmware ALLOC bug detected "
1417 "(old Symbol firmware?). Trying to work around... ",
1418 dev->name);
1419
1420 priv->nicbuf_size = TX_NICBUF_SIZE_BUG;
1421 err = hermes_allocate(hw, priv->nicbuf_size, &priv->txfid);
1422 if (err)
1423 printk("failed!\n");
1424 else
1425 printk("ok.\n");
1426 }
1427
1428 return err;
1429 }
1430
1431 static int __orinoco_hw_set_bitrate(struct orinoco_private *priv)
1432 {
1433 hermes_t *hw = &priv->hw;
1434 int err = 0;
1435
1436 if (priv->bitratemode >= BITRATE_TABLE_SIZE) {
1437 printk(KERN_ERR "%s: BUG: Invalid bitrate mode %d\n",
1438 priv->ndev->name, priv->bitratemode);
1439 return -EINVAL;
1440 }
1441
1442 switch (priv->firmware_type) {
1443 case FIRMWARE_TYPE_AGERE:
1444 err = hermes_write_wordrec(hw, USER_BAP,
1445 HERMES_RID_CNFTXRATECONTROL,
1446 bitrate_table[priv->bitratemode].agere_txratectrl);
1447 break;
1448 case FIRMWARE_TYPE_INTERSIL:
1449 case FIRMWARE_TYPE_SYMBOL:
1450 err = hermes_write_wordrec(hw, USER_BAP,
1451 HERMES_RID_CNFTXRATECONTROL,
1452 bitrate_table[priv->bitratemode].intersil_txratectrl);
1453 break;
1454 default:
1455 BUG();
1456 }
1457
1458 return err;
1459 }
1460
1461 /* Set fixed AP address */
1462 static int __orinoco_hw_set_wap(struct orinoco_private *priv)
1463 {
1464 int roaming_flag;
1465 int err = 0;
1466 hermes_t *hw = &priv->hw;
1467
1468 switch (priv->firmware_type) {
1469 case FIRMWARE_TYPE_AGERE:
1470 /* not supported */
1471 break;
1472 case FIRMWARE_TYPE_INTERSIL:
1473 if (priv->bssid_fixed)
1474 roaming_flag = 2;
1475 else
1476 roaming_flag = 1;
1477
1478 err = hermes_write_wordrec(hw, USER_BAP,
1479 HERMES_RID_CNFROAMINGMODE,
1480 roaming_flag);
1481 break;
1482 case FIRMWARE_TYPE_SYMBOL:
1483 err = HERMES_WRITE_RECORD(hw, USER_BAP,
1484 HERMES_RID_CNFMANDATORYBSSID_SYMBOL,
1485 &priv->desired_bssid);
1486 break;
1487 }
1488 return err;
1489 }
1490
1491 /* Change the WEP keys and/or the current keys. Can be called
1492 * either from __orinoco_hw_setup_wep() or directly from
1493 * orinoco_ioctl_setiwencode(). In the later case the association
1494 * with the AP is not broken (if the firmware can handle it),
1495 * which is needed for 802.1x implementations. */
1496 static int __orinoco_hw_setup_wepkeys(struct orinoco_private *priv)
1497 {
1498 hermes_t *hw = &priv->hw;
1499 int err = 0;
1500
1501 switch (priv->firmware_type) {
1502 case FIRMWARE_TYPE_AGERE:
1503 err = HERMES_WRITE_RECORD(hw, USER_BAP,
1504 HERMES_RID_CNFWEPKEYS_AGERE,
1505 &priv->keys);
1506 if (err)
1507 return err;
1508 err = hermes_write_wordrec(hw, USER_BAP,
1509 HERMES_RID_CNFTXKEY_AGERE,
1510 priv->tx_key);
1511 if (err)
1512 return err;
1513 break;
1514 case FIRMWARE_TYPE_INTERSIL:
1515 case FIRMWARE_TYPE_SYMBOL:
1516 {
1517 int keylen;
1518 int i;
1519
1520 /* Force uniform key length to work around firmware bugs */
1521 keylen = le16_to_cpu(priv->keys[priv->tx_key].len);
1522
1523 if (keylen > LARGE_KEY_SIZE) {
1524 printk(KERN_ERR "%s: BUG: Key %d has oversize length %d.\n",
1525 priv->ndev->name, priv->tx_key, keylen);
1526 return -E2BIG;
1527 }
1528
1529 /* Write all 4 keys */
1530 for(i = 0; i < ORINOCO_MAX_KEYS; i++) {
1531 err = hermes_write_ltv(hw, USER_BAP,
1532 HERMES_RID_CNFDEFAULTKEY0 + i,
1533 HERMES_BYTES_TO_RECLEN(keylen),
1534 priv->keys[i].data);
1535 if (err)
1536 return err;
1537 }
1538
1539 /* Write the index of the key used in transmission */
1540 err = hermes_write_wordrec(hw, USER_BAP,
1541 HERMES_RID_CNFWEPDEFAULTKEYID,
1542 priv->tx_key);
1543 if (err)
1544 return err;
1545 }
1546 break;
1547 }
1548
1549 return 0;
1550 }
1551
1552 static int __orinoco_hw_setup_wep(struct orinoco_private *priv)
1553 {
1554 hermes_t *hw = &priv->hw;
1555 int err = 0;
1556 int master_wep_flag;
1557 int auth_flag;
1558
1559 if (priv->wep_on)
1560 __orinoco_hw_setup_wepkeys(priv);
1561
1562 if (priv->wep_restrict)
1563 auth_flag = HERMES_AUTH_SHARED_KEY;
1564 else
1565 auth_flag = HERMES_AUTH_OPEN;
1566
1567 switch (priv->firmware_type) {
1568 case FIRMWARE_TYPE_AGERE: /* Agere style WEP */
1569 if (priv->wep_on) {
1570 /* Enable the shared-key authentication. */
1571 err = hermes_write_wordrec(hw, USER_BAP,
1572 HERMES_RID_CNFAUTHENTICATION_AGERE,
1573 auth_flag);
1574 }
1575 err = hermes_write_wordrec(hw, USER_BAP,
1576 HERMES_RID_CNFWEPENABLED_AGERE,
1577 priv->wep_on);
1578 if (err)
1579 return err;
1580 break;
1581
1582 case FIRMWARE_TYPE_INTERSIL: /* Intersil style WEP */
1583 case FIRMWARE_TYPE_SYMBOL: /* Symbol style WEP */
1584 if (priv->wep_on) {
1585 if (priv->wep_restrict ||
1586 (priv->firmware_type == FIRMWARE_TYPE_SYMBOL))
1587 master_wep_flag = HERMES_WEP_PRIVACY_INVOKED |
1588 HERMES_WEP_EXCL_UNENCRYPTED;
1589 else
1590 master_wep_flag = HERMES_WEP_PRIVACY_INVOKED;
1591
1592 err = hermes_write_wordrec(hw, USER_BAP,
1593 HERMES_RID_CNFAUTHENTICATION,
1594 auth_flag);
1595 if (err)
1596 return err;
1597 } else
1598 master_wep_flag = 0;
1599
1600 if (priv->iw_mode == IW_MODE_MONITOR)
1601 master_wep_flag |= HERMES_WEP_HOST_DECRYPT;
1602
1603 /* Master WEP setting : on/off */
1604 err = hermes_write_wordrec(hw, USER_BAP,
1605 HERMES_RID_CNFWEPFLAGS_INTERSIL,
1606 master_wep_flag);
1607 if (err)
1608 return err;
1609
1610 break;
1611 }
1612
1613 return 0;
1614 }
1615
1616 static int __orinoco_program_rids(struct net_device *dev)
1617 {
1618 struct orinoco_private *priv = netdev_priv(dev);
1619 hermes_t *hw = &priv->hw;
1620 int err;
1621 struct hermes_idstring idbuf;
1622
1623 /* Set the MAC address */
1624 err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFOWNMACADDR,
1625 HERMES_BYTES_TO_RECLEN(ETH_ALEN), dev->dev_addr);
1626 if (err) {
1627 printk(KERN_ERR "%s: Error %d setting MAC address\n",
1628 dev->name, err);
1629 return err;
1630 }
1631
1632 /* Set up the link mode */
1633 err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFPORTTYPE,
1634 priv->port_type);
1635 if (err) {
1636 printk(KERN_ERR "%s: Error %d setting port type\n",
1637 dev->name, err);
1638 return err;
1639 }
1640 /* Set the channel/frequency */
1641 if (priv->channel != 0 && priv->iw_mode != IW_MODE_INFRA) {
1642 err = hermes_write_wordrec(hw, USER_BAP,
1643 HERMES_RID_CNFOWNCHANNEL,
1644 priv->channel);
1645 if (err) {
1646 printk(KERN_ERR "%s: Error %d setting channel %d\n",
1647 dev->name, err, priv->channel);
1648 return err;
1649 }
1650 }
1651
1652 if (priv->has_ibss) {
1653 u16 createibss;
1654
1655 if ((strlen(priv->desired_essid) == 0) && (priv->createibss)) {
1656 printk(KERN_WARNING "%s: This firmware requires an "
1657 "ESSID in IBSS-Ad-Hoc mode.\n", dev->name);
1658 /* With wvlan_cs, in this case, we would crash.
1659 * hopefully, this driver will behave better...
1660 * Jean II */
1661 createibss = 0;
1662 } else {
1663 createibss = priv->createibss;
1664 }
1665
1666 err = hermes_write_wordrec(hw, USER_BAP,
1667 HERMES_RID_CNFCREATEIBSS,
1668 createibss);
1669 if (err) {
1670 printk(KERN_ERR "%s: Error %d setting CREATEIBSS\n",
1671 dev->name, err);
1672 return err;
1673 }
1674 }
1675
1676 /* Set the desired BSSID */
1677 err = __orinoco_hw_set_wap(priv);
1678 if (err) {
1679 printk(KERN_ERR "%s: Error %d setting AP address\n",
1680 dev->name, err);
1681 return err;
1682 }
1683 /* Set the desired ESSID */
1684 idbuf.len = cpu_to_le16(strlen(priv->desired_essid));
1685 memcpy(&idbuf.val, priv->desired_essid, sizeof(idbuf.val));
1686 /* WinXP wants partner to configure OWNSSID even in IBSS mode. (jimc) */
1687 err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFOWNSSID,
1688 HERMES_BYTES_TO_RECLEN(strlen(priv->desired_essid)+2),
1689 &idbuf);
1690 if (err) {
1691 printk(KERN_ERR "%s: Error %d setting OWNSSID\n",
1692 dev->name, err);
1693 return err;
1694 }
1695 err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFDESIREDSSID,
1696 HERMES_BYTES_TO_RECLEN(strlen(priv->desired_essid)+2),
1697 &idbuf);
1698 if (err) {
1699 printk(KERN_ERR "%s: Error %d setting DESIREDSSID\n",
1700 dev->name, err);
1701 return err;
1702 }
1703
1704 /* Set the station name */
1705 idbuf.len = cpu_to_le16(strlen(priv->nick));
1706 memcpy(&idbuf.val, priv->nick, sizeof(idbuf.val));
1707 err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFOWNNAME,
1708 HERMES_BYTES_TO_RECLEN(strlen(priv->nick)+2),
1709 &idbuf);
1710 if (err) {
1711 printk(KERN_ERR "%s: Error %d setting nickname\n",
1712 dev->name, err);
1713 return err;
1714 }
1715
1716 /* Set AP density */
1717 if (priv->has_sensitivity) {
1718 err = hermes_write_wordrec(hw, USER_BAP,
1719 HERMES_RID_CNFSYSTEMSCALE,
1720 priv->ap_density);
1721 if (err) {
1722 printk(KERN_WARNING "%s: Error %d setting SYSTEMSCALE. "
1723 "Disabling sensitivity control\n",
1724 dev->name, err);
1725
1726 priv->has_sensitivity = 0;
1727 }
1728 }
1729
1730 /* Set RTS threshold */
1731 err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFRTSTHRESHOLD,
1732 priv->rts_thresh);
1733 if (err) {
1734 printk(KERN_ERR "%s: Error %d setting RTS threshold\n",
1735 dev->name, err);
1736 return err;
1737 }
1738
1739 /* Set fragmentation threshold or MWO robustness */
1740 if (priv->has_mwo)
1741 err = hermes_write_wordrec(hw, USER_BAP,
1742 HERMES_RID_CNFMWOROBUST_AGERE,
1743 priv->mwo_robust);
1744 else
1745 err = hermes_write_wordrec(hw, USER_BAP,
1746 HERMES_RID_CNFFRAGMENTATIONTHRESHOLD,
1747 priv->frag_thresh);
1748 if (err) {
1749 printk(KERN_ERR "%s: Error %d setting fragmentation\n",
1750 dev->name, err);
1751 return err;
1752 }
1753
1754 /* Set bitrate */
1755 err = __orinoco_hw_set_bitrate(priv);
1756 if (err) {
1757 printk(KERN_ERR "%s: Error %d setting bitrate\n",
1758 dev->name, err);
1759 return err;
1760 }
1761
1762 /* Set power management */
1763 if (priv->has_pm) {
1764 err = hermes_write_wordrec(hw, USER_BAP,
1765 HERMES_RID_CNFPMENABLED,
1766 priv->pm_on);
1767 if (err) {
1768 printk(KERN_ERR "%s: Error %d setting up PM\n",
1769 dev->name, err);
1770 return err;
1771 }
1772
1773 err = hermes_write_wordrec(hw, USER_BAP,
1774 HERMES_RID_CNFMULTICASTRECEIVE,
1775 priv->pm_mcast);
1776 if (err) {
1777 printk(KERN_ERR "%s: Error %d setting up PM\n",
1778 dev->name, err);
1779 return err;
1780 }
1781 err = hermes_write_wordrec(hw, USER_BAP,
1782 HERMES_RID_CNFMAXSLEEPDURATION,
1783 priv->pm_period);
1784 if (err) {
1785 printk(KERN_ERR "%s: Error %d setting up PM\n",
1786 dev->name, err);
1787 return err;
1788 }
1789 err = hermes_write_wordrec(hw, USER_BAP,
1790 HERMES_RID_CNFPMHOLDOVERDURATION,
1791 priv->pm_timeout);
1792 if (err) {
1793 printk(KERN_ERR "%s: Error %d setting up PM\n",
1794 dev->name, err);
1795 return err;
1796 }
1797 }
1798
1799 /* Set preamble - only for Symbol so far... */
1800 if (priv->has_preamble) {
1801 err = hermes_write_wordrec(hw, USER_BAP,
1802 HERMES_RID_CNFPREAMBLE_SYMBOL,
1803 priv->preamble);
1804 if (err) {
1805 printk(KERN_ERR "%s: Error %d setting preamble\n",
1806 dev->name, err);
1807 return err;
1808 }
1809 }
1810
1811 /* Set up encryption */
1812 if (priv->has_wep) {
1813 err = __orinoco_hw_setup_wep(priv);
1814 if (err) {
1815 printk(KERN_ERR "%s: Error %d activating WEP\n",
1816 dev->name, err);
1817 return err;
1818 }
1819 }
1820
1821 if (priv->iw_mode == IW_MODE_MONITOR) {
1822 /* Enable monitor mode */
1823 dev->type = ARPHRD_IEEE80211;
1824 err = hermes_docmd_wait(hw, HERMES_CMD_TEST |
1825 HERMES_TEST_MONITOR, 0, NULL);
1826 } else {
1827 /* Disable monitor mode */
1828 dev->type = ARPHRD_ETHER;
1829 err = hermes_docmd_wait(hw, HERMES_CMD_TEST |
1830 HERMES_TEST_STOP, 0, NULL);
1831 }
1832 if (err)
1833 return err;
1834
1835 /* Set promiscuity / multicast*/
1836 priv->promiscuous = 0;
1837 priv->mc_count = 0;
1838 __orinoco_set_multicast_list(dev); /* FIXME: what about the xmit_lock */
1839
1840 return 0;
1841 }
1842
1843 /* FIXME: return int? */
1844 static void
1845 __orinoco_set_multicast_list(struct net_device *dev)
1846 {
1847 struct orinoco_private *priv = netdev_priv(dev);
1848 hermes_t *hw = &priv->hw;
1849 int err = 0;
1850 int promisc, mc_count;
1851
1852 /* The Hermes doesn't seem to have an allmulti mode, so we go
1853 * into promiscuous mode and let the upper levels deal. */
1854 if ( (dev->flags & IFF_PROMISC) || (dev->flags & IFF_ALLMULTI) ||
1855 (dev->mc_count > MAX_MULTICAST(priv)) ) {
1856 promisc = 1;
1857 mc_count = 0;
1858 } else {
1859 promisc = 0;
1860 mc_count = dev->mc_count;
1861 }
1862
1863 if (promisc != priv->promiscuous) {
1864 err = hermes_write_wordrec(hw, USER_BAP,
1865 HERMES_RID_CNFPROMISCUOUSMODE,
1866 promisc);
1867 if (err) {
1868 printk(KERN_ERR "%s: Error %d setting PROMISCUOUSMODE to 1.\n",
1869 dev->name, err);
1870 } else
1871 priv->promiscuous = promisc;
1872 }
1873
1874 if (! promisc && (mc_count || priv->mc_count) ) {
1875 struct dev_mc_list *p = dev->mc_list;
1876 struct hermes_multicast mclist;
1877 int i;
1878
1879 for (i = 0; i < mc_count; i++) {
1880 /* paranoia: is list shorter than mc_count? */
1881 BUG_ON(! p);
1882 /* paranoia: bad address size in list? */
1883 BUG_ON(p->dmi_addrlen != ETH_ALEN);
1884
1885 memcpy(mclist.addr[i], p->dmi_addr, ETH_ALEN);
1886 p = p->next;
1887 }
1888
1889 if (p)
1890 printk(KERN_WARNING "%s: Multicast list is "
1891 "longer than mc_count\n", dev->name);
1892
1893 err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFGROUPADDRESSES,
1894 HERMES_BYTES_TO_RECLEN(priv->mc_count * ETH_ALEN),
1895 &mclist);
1896 if (err)
1897 printk(KERN_ERR "%s: Error %d setting multicast list.\n",
1898 dev->name, err);
1899 else
1900 priv->mc_count = mc_count;
1901 }
1902
1903 /* Since we can set the promiscuous flag when it wasn't asked
1904 for, make sure the net_device knows about it. */
1905 if (priv->promiscuous)
1906 dev->flags |= IFF_PROMISC;
1907 else
1908 dev->flags &= ~IFF_PROMISC;
1909 }
1910
1911 /* This must be called from user context, without locks held - use
1912 * schedule_work() */
1913 static void orinoco_reset(struct net_device *dev)
1914 {
1915 struct orinoco_private *priv = netdev_priv(dev);
1916 struct hermes *hw = &priv->hw;
1917 int err;
1918 unsigned long flags;
1919
1920 if (orinoco_lock(priv, &flags) != 0)
1921 /* When the hardware becomes available again, whatever
1922 * detects that is responsible for re-initializing
1923 * it. So no need for anything further */
1924 return;
1925
1926 netif_stop_queue(dev);
1927
1928 /* Shut off interrupts. Depending on what state the hardware
1929 * is in, this might not work, but we'll try anyway */
1930 hermes_set_irqmask(hw, 0);
1931 hermes_write_regn(hw, EVACK, 0xffff);
1932
1933 priv->hw_unavailable++;
1934 priv->last_linkstatus = 0xffff; /* firmware will have to reassociate */
1935 netif_carrier_off(dev);
1936
1937 orinoco_unlock(priv, &flags);
1938
1939 /* Scanning support: Cleanup of driver struct */
1940 kfree(priv->scan_result);
1941 priv->scan_result = NULL;
1942 priv->scan_inprogress = 0;
1943
1944 if (priv->hard_reset) {
1945 err = (*priv->hard_reset)(priv);
1946 if (err) {
1947 printk(KERN_ERR "%s: orinoco_reset: Error %d "
1948 "performing hard reset\n", dev->name, err);
1949 goto disable;
1950 }
1951 }
1952
1953 err = orinoco_reinit_firmware(dev);
1954 if (err) {
1955 printk(KERN_ERR "%s: orinoco_reset: Error %d re-initializing firmware\n",
1956 dev->name, err);
1957 goto disable;
1958 }
1959
1960 spin_lock_irq(&priv->lock); /* This has to be called from user context */
1961
1962 priv->hw_unavailable--;
1963
1964 /* priv->open or priv->hw_unavailable might have changed while
1965 * we dropped the lock */
1966 if (priv->open && (! priv->hw_unavailable)) {
1967 err = __orinoco_up(dev);
1968 if (err) {
1969 printk(KERN_ERR "%s: orinoco_reset: Error %d reenabling card\n",
1970 dev->name, err);
1971 } else
1972 dev->trans_start = jiffies;
1973 }
1974
1975 spin_unlock_irq(&priv->lock);
1976
1977 return;
1978 disable:
1979 hermes_set_irqmask(hw, 0);
1980 netif_device_detach(dev);
1981 printk(KERN_ERR "%s: Device has been disabled!\n", dev->name);
1982 }
1983
1984 /********************************************************************/
1985 /* Interrupt handler */
1986 /********************************************************************/
1987
1988 static void __orinoco_ev_tick(struct net_device *dev, hermes_t *hw)
1989 {
1990 printk(KERN_DEBUG "%s: TICK\n", dev->name);
1991 }
1992
1993 static void __orinoco_ev_wterr(struct net_device *dev, hermes_t *hw)
1994 {
1995 /* This seems to happen a fair bit under load, but ignoring it
1996 seems to work fine...*/
1997 printk(KERN_DEBUG "%s: MAC controller error (WTERR). Ignoring.\n",
1998 dev->name);
1999 }
2000
2001 irqreturn_t orinoco_interrupt(int irq, void *dev_id, struct pt_regs *regs)
2002 {
2003 struct net_device *dev = (struct net_device *)dev_id;
2004 struct orinoco_private *priv = netdev_priv(dev);
2005 hermes_t *hw = &priv->hw;
2006 int count = MAX_IRQLOOPS_PER_IRQ;
2007 u16 evstat, events;
2008 /* These are used to detect a runaway interrupt situation */
2009 /* If we get more than MAX_IRQLOOPS_PER_JIFFY iterations in a jiffy,
2010 * we panic and shut down the hardware */
2011 static int last_irq_jiffy = 0; /* jiffies value the last time
2012 * we were called */
2013 static int loops_this_jiffy = 0;
2014 unsigned long flags;
2015
2016 if (orinoco_lock(priv, &flags) != 0) {
2017 /* If hw is unavailable - we don't know if the irq was
2018 * for us or not */
2019 return IRQ_HANDLED;
2020 }
2021
2022 evstat = hermes_read_regn(hw, EVSTAT);
2023 events = evstat & hw->inten;
2024 if (! events) {
2025 orinoco_unlock(priv, &flags);
2026 return IRQ_NONE;
2027 }
2028
2029 if (jiffies != last_irq_jiffy)
2030 loops_this_jiffy = 0;
2031 last_irq_jiffy = jiffies;
2032
2033 while (events && count--) {
2034 if (++loops_this_jiffy > MAX_IRQLOOPS_PER_JIFFY) {
2035 printk(KERN_WARNING "%s: IRQ handler is looping too "
2036 "much! Resetting.\n", dev->name);
2037 /* Disable interrupts for now */
2038 hermes_set_irqmask(hw, 0);
2039 schedule_work(&priv->reset_work);
2040 break;
2041 }
2042
2043 /* Check the card hasn't been removed */
2044 if (! hermes_present(hw)) {
2045 DEBUG(0, "orinoco_interrupt(): card removed\n");
2046 break;
2047 }
2048
2049 if (events & HERMES_EV_TICK)
2050 __orinoco_ev_tick(dev, hw);
2051 if (events & HERMES_EV_WTERR)
2052 __orinoco_ev_wterr(dev, hw);
2053 if (events & HERMES_EV_INFDROP)
2054 __orinoco_ev_infdrop(dev, hw);
2055 if (events & HERMES_EV_INFO)
2056 __orinoco_ev_info(dev, hw);
2057 if (events & HERMES_EV_RX)
2058 __orinoco_ev_rx(dev, hw);
2059 if (events & HERMES_EV_TXEXC)
2060 __orinoco_ev_txexc(dev, hw);
2061 if (events & HERMES_EV_TX)
2062 __orinoco_ev_tx(dev, hw);
2063 if (events & HERMES_EV_ALLOC)
2064 __orinoco_ev_alloc(dev, hw);
2065
2066 hermes_write_regn(hw, EVACK, evstat);
2067
2068 evstat = hermes_read_regn(hw, EVSTAT);
2069 events = evstat & hw->inten;
2070 };
2071
2072 orinoco_unlock(priv, &flags);
2073 return IRQ_HANDLED;
2074 }
2075
2076 /********************************************************************/
2077 /* Initialization */
2078 /********************************************************************/
2079
2080 struct comp_id {
2081 u16 id, variant, major, minor;
2082 } __attribute__ ((packed));
2083
2084 static inline fwtype_t determine_firmware_type(struct comp_id *nic_id)
2085 {
2086 if (nic_id->id < 0x8000)
2087 return FIRMWARE_TYPE_AGERE;
2088 else if (nic_id->id == 0x8000 && nic_id->major == 0)
2089 return FIRMWARE_TYPE_SYMBOL;
2090 else
2091 return FIRMWARE_TYPE_INTERSIL;
2092 }
2093
2094 /* Set priv->firmware type, determine firmware properties */
2095 static int determine_firmware(struct net_device *dev)
2096 {
2097 struct orinoco_private *priv = netdev_priv(dev);
2098 hermes_t *hw = &priv->hw;
2099 int err;
2100 struct comp_id nic_id, sta_id;
2101 unsigned int firmver;
2102 char tmp[SYMBOL_MAX_VER_LEN+1];
2103
2104 /* Get the hardware version */
2105 err = HERMES_READ_RECORD(hw, USER_BAP, HERMES_RID_NICID, &nic_id);
2106 if (err) {
2107 printk(KERN_ERR "%s: Cannot read hardware identity: error %d\n",
2108 dev->name, err);
2109 return err;
2110 }
2111
2112 le16_to_cpus(&nic_id.id);
2113 le16_to_cpus(&nic_id.variant);
2114 le16_to_cpus(&nic_id.major);
2115 le16_to_cpus(&nic_id.minor);
2116 printk(KERN_DEBUG "%s: Hardware identity %04x:%04x:%04x:%04x\n",
2117 dev->name, nic_id.id, nic_id.variant,
2118 nic_id.major, nic_id.minor);
2119
2120 priv->firmware_type = determine_firmware_type(&nic_id);
2121
2122 /* Get the firmware version */
2123 err = HERMES_READ_RECORD(hw, USER_BAP, HERMES_RID_STAID, &sta_id);
2124 if (err) {
2125 printk(KERN_ERR "%s: Cannot read station identity: error %d\n",
2126 dev->name, err);
2127 return err;
2128 }
2129
2130 le16_to_cpus(&sta_id.id);
2131 le16_to_cpus(&sta_id.variant);
2132 le16_to_cpus(&sta_id.major);
2133 le16_to_cpus(&sta_id.minor);
2134 printk(KERN_DEBUG "%s: Station identity %04x:%04x:%04x:%04x\n",
2135 dev->name, sta_id.id, sta_id.variant,
2136 sta_id.major, sta_id.minor);
2137
2138 switch (sta_id.id) {
2139 case 0x15:
2140 printk(KERN_ERR "%s: Primary firmware is active\n",
2141 dev->name);
2142 return -ENODEV;
2143 case 0x14b:
2144 printk(KERN_ERR "%s: Tertiary firmware is active\n",
2145 dev->name);
2146 return -ENODEV;
2147 case 0x1f: /* Intersil, Agere, Symbol Spectrum24 */
2148 case 0x21: /* Symbol Spectrum24 Trilogy */
2149 break;
2150 default:
2151 printk(KERN_NOTICE "%s: Unknown station ID, please report\n",
2152 dev->name);
2153 break;
2154 }
2155
2156 /* Default capabilities */
2157 priv->has_sensitivity = 1;
2158 priv->has_mwo = 0;
2159 priv->has_preamble = 0;
2160 priv->has_port3 = 1;
2161 priv->has_ibss = 1;
2162 priv->has_wep = 0;
2163 priv->has_big_wep = 0;
2164
2165 /* Determine capabilities from the firmware version */
2166 switch (priv->firmware_type) {
2167 case FIRMWARE_TYPE_AGERE:
2168 /* Lucent Wavelan IEEE, Lucent Orinoco, Cabletron RoamAbout,
2169 ELSA, Melco, HP, IBM, Dell 1150, Compaq 110/210 */
2170 snprintf(priv->fw_name, sizeof(priv->fw_name) - 1,
2171 "Lucent/Agere %d.%02d", sta_id.major, sta_id.minor);
2172
2173 firmver = ((unsigned long)sta_id.major << 16) | sta_id.minor;
2174
2175 priv->has_ibss = (firmver >= 0x60006);
2176 priv->has_wep = (firmver >= 0x40020);
2177 priv->has_big_wep = 1; /* FIXME: this is wrong - how do we tell
2178 Gold cards from the others? */
2179 priv->has_mwo = (firmver >= 0x60000);
2180 priv->has_pm = (firmver >= 0x40020); /* Don't work in 7.52 ? */
2181 priv->ibss_port = 1;
2182 priv->has_hostscan = (firmver >= 0x8000a);
2183 priv->broken_monitor = (firmver >= 0x80000);
2184
2185 /* Tested with Agere firmware :
2186 * 1.16 ; 4.08 ; 4.52 ; 6.04 ; 6.16 ; 7.28 => Jean II
2187 * Tested CableTron firmware : 4.32 => Anton */
2188 break;
2189 case FIRMWARE_TYPE_SYMBOL:
2190 /* Symbol , 3Com AirConnect, Intel, Ericsson WLAN */
2191 /* Intel MAC : 00:02:B3:* */
2192 /* 3Com MAC : 00:50:DA:* */
2193 memset(tmp, 0, sizeof(tmp));
2194 /* Get the Symbol firmware version */
2195 err = hermes_read_ltv(hw, USER_BAP,
2196 HERMES_RID_SECONDARYVERSION_SYMBOL,
2197 SYMBOL_MAX_VER_LEN, NULL, &tmp);
2198 if (err) {
2199 printk(KERN_WARNING
2200 "%s: Error %d reading Symbol firmware info. Wildly guessing capabilities...\n",
2201 dev->name, err);
2202 firmver = 0;
2203 tmp[0] = '\0';
2204 } else {
2205 /* The firmware revision is a string, the format is
2206 * something like : "V2.20-01".
2207 * Quick and dirty parsing... - Jean II
2208 */
2209 firmver = ((tmp[1] - '0') << 16) | ((tmp[3] - '0') << 12)
2210 | ((tmp[4] - '0') << 8) | ((tmp[6] - '0') << 4)
2211 | (tmp[7] - '0');
2212
2213 tmp[SYMBOL_MAX_VER_LEN] = '\0';
2214 }
2215
2216 snprintf(priv->fw_name, sizeof(priv->fw_name) - 1,
2217 "Symbol %s", tmp);
2218
2219 priv->has_ibss = (firmver >= 0x20000);
2220 priv->has_wep = (firmver >= 0x15012);
2221 priv->has_big_wep = (firmver >= 0x20000);
2222 priv->has_pm = (firmver >= 0x20000 && firmver < 0x22000) ||
2223 (firmver >= 0x29000 && firmver < 0x30000) ||
2224 firmver >= 0x31000;
2225 priv->has_preamble = (firmver >= 0x20000);
2226 priv->ibss_port = 4;
2227 priv->broken_disableport = (firmver == 0x25013) ||
2228 (firmver >= 0x30000 && firmver <= 0x31000);
2229 priv->has_hostscan = (firmver >= 0x31001) ||
2230 (firmver >= 0x29057 && firmver < 0x30000);
2231 /* Tested with Intel firmware : 0x20015 => Jean II */
2232 /* Tested with 3Com firmware : 0x15012 & 0x22001 => Jean II */
2233 break;
2234 case FIRMWARE_TYPE_INTERSIL:
2235 /* D-Link, Linksys, Adtron, ZoomAir, and many others...
2236 * Samsung, Compaq 100/200 and Proxim are slightly
2237 * different and less well tested */
2238 /* D-Link MAC : 00:40:05:* */
2239 /* Addtron MAC : 00:90:D1:* */
2240 snprintf(priv->fw_name, sizeof(priv->fw_name) - 1,
2241 "Intersil %d.%d.%d", sta_id.major, sta_id.minor,
2242 sta_id.variant);
2243
2244 firmver = ((unsigned long)sta_id.major << 16) |
2245 ((unsigned long)sta_id.minor << 8) | sta_id.variant;
2246
2247 priv->has_ibss = (firmver >= 0x000700); /* FIXME */
2248 priv->has_big_wep = priv->has_wep = (firmver >= 0x000800);
2249 priv->has_pm = (firmver >= 0x000700);
2250 priv->has_hostscan = (firmver >= 0x010301);
2251
2252 if (firmver >= 0x000800)
2253 priv->ibss_port = 0;
2254 else {
2255 printk(KERN_NOTICE "%s: Intersil firmware earlier "
2256 "than v0.8.x - several features not supported\n",
2257 dev->name);
2258 priv->ibss_port = 1;
2259 }
2260 break;
2261 }
2262 printk(KERN_DEBUG "%s: Firmware determined as %s\n", dev->name,
2263 priv->fw_name);
2264
2265 return 0;
2266 }
2267
2268 static int orinoco_init(struct net_device *dev)
2269 {
2270 struct orinoco_private *priv = netdev_priv(dev);
2271 hermes_t *hw = &priv->hw;
2272 int err = 0;
2273 struct hermes_idstring nickbuf;
2274 u16 reclen;
2275 int len;
2276
2277 TRACE_ENTER(dev->name);
2278
2279 /* No need to lock, the hw_unavailable flag is already set in
2280 * alloc_orinocodev() */
2281 priv->nicbuf_size = IEEE80211_FRAME_LEN + ETH_HLEN;
2282
2283 /* Initialize the firmware */
2284 err = orinoco_reinit_firmware(dev);
2285 if (err != 0) {
2286 printk(KERN_ERR "%s: failed to initialize firmware (err = %d)\n",
2287 dev->name, err);
2288 goto out;
2289 }
2290
2291 err = determine_firmware(dev);
2292 if (err != 0) {
2293 printk(KERN_ERR "%s: Incompatible firmware, aborting\n",
2294 dev->name);
2295 goto out;
2296 }
2297
2298 if (priv->has_port3)
2299 printk(KERN_DEBUG "%s: Ad-hoc demo mode supported\n", dev->name);
2300 if (priv->has_ibss)
2301 printk(KERN_DEBUG "%s: IEEE standard IBSS ad-hoc mode supported\n",
2302 dev->name);
2303 if (priv->has_wep) {
2304 printk(KERN_DEBUG "%s: WEP supported, ", dev->name);
2305 if (priv->has_big_wep)
2306 printk("104-bit key\n");
2307 else
2308 printk("40-bit key\n");
2309 }
2310
2311 /* Get the MAC address */
2312 err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CNFOWNMACADDR,
2313 ETH_ALEN, NULL, dev->dev_addr);
2314 if (err) {
2315 printk(KERN_WARNING "%s: failed to read MAC address!\n",
2316 dev->name);
2317 goto out;
2318 }
2319
2320 printk(KERN_DEBUG "%s: MAC address %02X:%02X:%02X:%02X:%02X:%02X\n",
2321 dev->name, dev->dev_addr[0], dev->dev_addr[1],
2322 dev->dev_addr[2], dev->dev_addr[3], dev->dev_addr[4],
2323 dev->dev_addr[5]);
2324
2325 /* Get the station name */
2326 err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CNFOWNNAME,
2327 sizeof(nickbuf), &reclen, &nickbuf);
2328 if (err) {
2329 printk(KERN_ERR "%s: failed to read station name\n",
2330 dev->name);
2331 goto out;
2332 }
2333 if (nickbuf.len)
2334 len = min(IW_ESSID_MAX_SIZE, (int)le16_to_cpu(nickbuf.len));
2335 else
2336 len = min(IW_ESSID_MAX_SIZE, 2 * reclen);
2337 memcpy(priv->nick, &nickbuf.val, len);
2338 priv->nick[len] = '\0';
2339
2340 printk(KERN_DEBUG "%s: Station name \"%s\"\n", dev->name, priv->nick);
2341
2342 /* Get allowed channels */
2343 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CHANNELLIST,
2344 &priv->channel_mask);
2345 if (err) {
2346 printk(KERN_ERR "%s: failed to read channel list!\n",
2347 dev->name);
2348 goto out;
2349 }
2350
2351 /* Get initial AP density */
2352 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFSYSTEMSCALE,
2353 &priv->ap_density);
2354 if (err || priv->ap_density < 1 || priv->ap_density > 3) {
2355 priv->has_sensitivity = 0;
2356 }
2357
2358 /* Get initial RTS threshold */
2359 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFRTSTHRESHOLD,
2360 &priv->rts_thresh);
2361 if (err) {
2362 printk(KERN_ERR "%s: failed to read RTS threshold!\n",
2363 dev->name);
2364 goto out;
2365 }
2366
2367 /* Get initial fragmentation settings */
2368 if (priv->has_mwo)
2369 err = hermes_read_wordrec(hw, USER_BAP,
2370 HERMES_RID_CNFMWOROBUST_AGERE,
2371 &priv->mwo_robust);
2372 else
2373 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFFRAGMENTATIONTHRESHOLD,
2374 &priv->frag_thresh);
2375 if (err) {
2376 printk(KERN_ERR "%s: failed to read fragmentation settings!\n",
2377 dev->name);
2378 goto out;
2379 }
2380
2381 /* Power management setup */
2382 if (priv->has_pm) {
2383 priv->pm_on = 0;
2384 priv->pm_mcast = 1;
2385 err = hermes_read_wordrec(hw, USER_BAP,
2386 HERMES_RID_CNFMAXSLEEPDURATION,
2387 &priv->pm_period);
2388 if (err) {
2389 printk(KERN_ERR "%s: failed to read power management period!\n",
2390 dev->name);
2391 goto out;
2392 }
2393 err = hermes_read_wordrec(hw, USER_BAP,
2394 HERMES_RID_CNFPMHOLDOVERDURATION,
2395 &priv->pm_timeout);
2396 if (err) {
2397 printk(KERN_ERR "%s: failed to read power management timeout!\n",
2398 dev->name);
2399 goto out;
2400 }
2401 }
2402
2403 /* Preamble setup */
2404 if (priv->has_preamble) {
2405 err = hermes_read_wordrec(hw, USER_BAP,
2406 HERMES_RID_CNFPREAMBLE_SYMBOL,
2407 &priv->preamble);
2408 if (err)
2409 goto out;
2410 }
2411
2412 /* Set up the default configuration */
2413 priv->iw_mode = IW_MODE_INFRA;
2414 /* By default use IEEE/IBSS ad-hoc mode if we have it */
2415 priv->prefer_port3 = priv->has_port3 && (! priv->has_ibss);
2416 set_port_type(priv);
2417 priv->channel = 0; /* use firmware default */
2418
2419 priv->promiscuous = 0;
2420 priv->wep_on = 0;
2421 priv->tx_key = 0;
2422
2423 /* Make the hardware available, as long as it hasn't been
2424 * removed elsewhere (e.g. by PCMCIA hot unplug) */
2425 spin_lock_irq(&priv->lock);
2426 priv->hw_unavailable--;
2427 spin_unlock_irq(&priv->lock);
2428
2429 printk(KERN_DEBUG "%s: ready\n", dev->name);
2430
2431 out:
2432 TRACE_EXIT(dev->name);
2433 return err;
2434 }
2435
2436 struct net_device *alloc_orinocodev(int sizeof_card,
2437 int (*hard_reset)(struct orinoco_private *))
2438 {
2439 struct net_device *dev;
2440 struct orinoco_private *priv;
2441
2442 dev = alloc_etherdev(sizeof(struct orinoco_private) + sizeof_card);
2443 if (! dev)
2444 return NULL;
2445 priv = netdev_priv(dev);
2446 priv->ndev = dev;
2447 if (sizeof_card)
2448 priv->card = (void *)((unsigned long)priv
2449 + sizeof(struct orinoco_private));
2450 else
2451 priv->card = NULL;
2452
2453 /* Setup / override net_device fields */
2454 dev->init = orinoco_init;
2455 dev->hard_start_xmit = orinoco_xmit;
2456 dev->tx_timeout = orinoco_tx_timeout;
2457 dev->watchdog_timeo = HZ; /* 1 second timeout */
2458 dev->get_stats = orinoco_get_stats;
2459 dev->ethtool_ops = &orinoco_ethtool_ops;
2460 dev->wireless_handlers = (struct iw_handler_def *)&orinoco_handler_def;
2461 #ifdef WIRELESS_SPY
2462 priv->wireless_data.spy_data = &priv->spy_data;
2463 dev->wireless_data = &priv->wireless_data;
2464 #endif
2465 dev->change_mtu = orinoco_change_mtu;
2466 dev->set_multicast_list = orinoco_set_multicast_list;
2467 /* we use the default eth_mac_addr for setting the MAC addr */
2468
2469 /* Set up default callbacks */
2470 dev->open = orinoco_open;
2471 dev->stop = orinoco_stop;
2472 priv->hard_reset = hard_reset;
2473
2474 spin_lock_init(&priv->lock);
2475 priv->open = 0;
2476 priv->hw_unavailable = 1; /* orinoco_init() must clear this
2477 * before anything else touches the
2478 * hardware */
2479 INIT_WORK(&priv->reset_work, (void (*)(void *))orinoco_reset, dev);
2480 INIT_WORK(&priv->join_work, (void (*)(void *))orinoco_join_ap, dev);
2481 INIT_WORK(&priv->wevent_work, (void (*)(void *))orinoco_send_wevents, dev);
2482
2483 netif_carrier_off(dev);
2484 priv->last_linkstatus = 0xffff;
2485
2486 return dev;
2487
2488 }
2489
2490 void free_orinocodev(struct net_device *dev)
2491 {
2492 struct orinoco_private *priv = netdev_priv(dev);
2493
2494 kfree(priv->scan_result);
2495 free_netdev(dev);
2496 }
2497
2498 /********************************************************************/
2499 /* Wireless extensions */
2500 /********************************************************************/
2501
2502 static int orinoco_hw_get_essid(struct orinoco_private *priv, int *active,
2503 char buf[IW_ESSID_MAX_SIZE+1])
2504 {
2505 hermes_t *hw = &priv->hw;
2506 int err = 0;
2507 struct hermes_idstring essidbuf;
2508 char *p = (char *)(&essidbuf.val);
2509 int len;
2510 unsigned long flags;
2511
2512 if (orinoco_lock(priv, &flags) != 0)
2513 return -EBUSY;
2514
2515 if (strlen(priv->desired_essid) > 0) {
2516 /* We read the desired SSID from the hardware rather
2517 than from priv->desired_essid, just in case the
2518 firmware is allowed to change it on us. I'm not
2519 sure about this */
2520 /* My guess is that the OWNSSID should always be whatever
2521 * we set to the card, whereas CURRENT_SSID is the one that
2522 * may change... - Jean II */
2523 u16 rid;
2524
2525 *active = 1;
2526
2527 rid = (priv->port_type == 3) ? HERMES_RID_CNFOWNSSID :
2528 HERMES_RID_CNFDESIREDSSID;
2529
2530 err = hermes_read_ltv(hw, USER_BAP, rid, sizeof(essidbuf),
2531 NULL, &essidbuf);
2532 if (err)
2533 goto fail_unlock;
2534 } else {
2535 *active = 0;
2536
2537 err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CURRENTSSID,
2538 sizeof(essidbuf), NULL, &essidbuf);
2539 if (err)
2540 goto fail_unlock;
2541 }
2542
2543 len = le16_to_cpu(essidbuf.len);
2544 BUG_ON(len > IW_ESSID_MAX_SIZE);
2545
2546 memset(buf, 0, IW_ESSID_MAX_SIZE+1);
2547 memcpy(buf, p, len);
2548 buf[len] = '\0';
2549
2550 fail_unlock:
2551 orinoco_unlock(priv, &flags);
2552
2553 return err;
2554 }
2555
2556 static long orinoco_hw_get_freq(struct orinoco_private *priv)
2557 {
2558
2559 hermes_t *hw = &priv->hw;
2560 int err = 0;
2561 u16 channel;
2562 long freq = 0;
2563 unsigned long flags;
2564
2565 if (orinoco_lock(priv, &flags) != 0)
2566 return -EBUSY;
2567
2568 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CURRENTCHANNEL, &channel);
2569 if (err)
2570 goto out;
2571
2572 /* Intersil firmware 1.3.5 returns 0 when the interface is down */
2573 if (channel == 0) {
2574 err = -EBUSY;
2575 goto out;
2576 }
2577
2578 if ( (channel < 1) || (channel > NUM_CHANNELS) ) {
2579 printk(KERN_WARNING "%s: Channel out of range (%d)!\n",
2580 priv->ndev->name, channel);
2581 err = -EBUSY;
2582 goto out;
2583
2584 }
2585 freq = channel_frequency[channel-1] * 100000;
2586
2587 out:
2588 orinoco_unlock(priv, &flags);
2589
2590 if (err > 0)
2591 err = -EBUSY;
2592 return err ? err : freq;
2593 }
2594
2595 static int orinoco_hw_get_bitratelist(struct orinoco_private *priv,
2596 int *numrates, s32 *rates, int max)
2597 {
2598 hermes_t *hw = &priv->hw;
2599 struct hermes_idstring list;
2600 unsigned char *p = (unsigned char *)&list.val;
2601 int err = 0;
2602 int num;
2603 int i;
2604 unsigned long flags;
2605
2606 if (orinoco_lock(priv, &flags) != 0)
2607 return -EBUSY;
2608
2609 err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_SUPPORTEDDATARATES,
2610 sizeof(list), NULL, &list);
2611 orinoco_unlock(priv, &flags);
2612
2613 if (err)
2614 return err;
2615
2616 num = le16_to_cpu(list.len);
2617 *numrates = num;
2618 num = min(num, max);
2619
2620 for (i = 0; i < num; i++) {
2621 rates[i] = (p[i] & 0x7f) * 500000; /* convert to bps */
2622 }
2623
2624 return 0;
2625 }
2626
2627 static int orinoco_ioctl_getname(struct net_device *dev,
2628 struct iw_request_info *info,
2629 char *name,
2630 char *extra)
2631 {
2632 struct orinoco_private *priv = netdev_priv(dev);
2633 int numrates;
2634 int err;
2635
2636 err = orinoco_hw_get_bitratelist(priv, &numrates, NULL, 0);
2637
2638 if (!err && (numrates > 2))
2639 strcpy(name, "IEEE 802.11b");
2640 else
2641 strcpy(name, "IEEE 802.11-DS");
2642
2643 return 0;
2644 }
2645
2646 static int orinoco_ioctl_setwap(struct net_device *dev,
2647 struct iw_request_info *info,
2648 struct sockaddr *ap_addr,
2649 char *extra)
2650 {
2651 struct orinoco_private *priv = netdev_priv(dev);
2652 int err = -EINPROGRESS; /* Call commit handler */
2653 unsigned long flags;
2654 static const u8 off_addr[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
2655 static const u8 any_addr[] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
2656
2657 if (orinoco_lock(priv, &flags) != 0)
2658 return -EBUSY;
2659
2660 /* Enable automatic roaming - no sanity checks are needed */
2661 if (memcmp(&ap_addr->sa_data, off_addr, ETH_ALEN) == 0 ||
2662 memcmp(&ap_addr->sa_data, any_addr, ETH_ALEN) == 0) {
2663 priv->bssid_fixed = 0;
2664 memset(priv->desired_bssid, 0, ETH_ALEN);
2665
2666 /* "off" means keep existing connection */
2667 if (ap_addr->sa_data[0] == 0) {
2668 __orinoco_hw_set_wap(priv);
2669 err = 0;
2670 }
2671 goto out;
2672 }
2673
2674 if (priv->firmware_type == FIRMWARE_TYPE_AGERE) {
2675 printk(KERN_WARNING "%s: Lucent/Agere firmware doesn't "
2676 "support manual roaming\n",
2677 dev->name);
2678 err = -EOPNOTSUPP;
2679 goto out;
2680 }
2681
2682 if (priv->iw_mode != IW_MODE_INFRA) {
2683 printk(KERN_WARNING "%s: Manual roaming supported only in "
2684 "managed mode\n", dev->name);
2685 err = -EOPNOTSUPP;
2686 goto out;
2687 }
2688
2689 /* Intersil firmware hangs without Desired ESSID */
2690 if (priv->firmware_type == FIRMWARE_TYPE_INTERSIL &&
2691 strlen(priv->desired_essid) == 0) {
2692 printk(KERN_WARNING "%s: Desired ESSID must be set for "
2693 "manual roaming\n", dev->name);
2694 err = -EOPNOTSUPP;
2695 goto out;
2696 }
2697
2698 /* Finally, enable manual roaming */
2699 priv->bssid_fixed = 1;
2700 memcpy(priv->desired_bssid, &ap_addr->sa_data, ETH_ALEN);
2701
2702 out:
2703 orinoco_unlock(priv, &flags);
2704 return err;
2705 }
2706
2707 static int orinoco_ioctl_getwap(struct net_device *dev,
2708 struct iw_request_info *info,
2709 struct sockaddr *ap_addr,
2710 char *extra)
2711 {
2712 struct orinoco_private *priv = netdev_priv(dev);
2713
2714 hermes_t *hw = &priv->hw;
2715 int err = 0;
2716 unsigned long flags;
2717
2718 if (orinoco_lock(priv, &flags) != 0)
2719 return -EBUSY;
2720
2721 ap_addr->sa_family = ARPHRD_ETHER;
2722 err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CURRENTBSSID,
2723 ETH_ALEN, NULL, ap_addr->sa_data);
2724
2725 orinoco_unlock(priv, &flags);
2726
2727 return err;
2728 }
2729
2730 static int orinoco_ioctl_setmode(struct net_device *dev,
2731 struct iw_request_info *info,
2732 u32 *mode,
2733 char *extra)
2734 {
2735 struct orinoco_private *priv = netdev_priv(dev);
2736 int err = -EINPROGRESS; /* Call commit handler */
2737 unsigned long flags;
2738
2739 if (priv->iw_mode == *mode)
2740 return 0;
2741
2742 if (orinoco_lock(priv, &flags) != 0)
2743 return -EBUSY;
2744
2745 switch (*mode) {
2746 case IW_MODE_ADHOC:
2747 if (!priv->has_ibss && !priv->has_port3)
2748 err = -EOPNOTSUPP;
2749 break;
2750
2751 case IW_MODE_INFRA:
2752 break;
2753
2754 case IW_MODE_MONITOR:
2755 if (priv->broken_monitor && !force_monitor) {
2756 printk(KERN_WARNING "%s: Monitor mode support is "
2757 "buggy in this firmware, not enabling\n",
2758 dev->name);
2759 err = -EOPNOTSUPP;
2760 }
2761 break;
2762
2763 default:
2764 err = -EOPNOTSUPP;
2765 break;
2766 }
2767
2768 if (err == -EINPROGRESS) {
2769 priv->iw_mode = *mode;
2770 set_port_type(priv);
2771 }
2772
2773 orinoco_unlock(priv, &flags);
2774
2775 return err;
2776 }
2777
2778 static int orinoco_ioctl_getmode(struct net_device *dev,
2779 struct iw_request_info *info,
2780 u32 *mode,
2781 char *extra)
2782 {
2783 struct orinoco_private *priv = netdev_priv(dev);
2784
2785 *mode = priv->iw_mode;
2786 return 0;
2787 }
2788
2789 static int orinoco_ioctl_getiwrange(struct net_device *dev,
2790 struct iw_request_info *info,
2791 struct iw_point *rrq,
2792 char *extra)
2793 {
2794 struct orinoco_private *priv = netdev_priv(dev);
2795 int err = 0;
2796 struct iw_range *range = (struct iw_range *) extra;
2797 int numrates;
2798 int i, k;
2799
2800 TRACE_ENTER(dev->name);
2801
2802 rrq->length = sizeof(struct iw_range);
2803 memset(range, 0, sizeof(struct iw_range));
2804
2805 range->we_version_compiled = WIRELESS_EXT;
2806 range->we_version_source = 14;
2807
2808 /* Set available channels/frequencies */
2809 range->num_channels = NUM_CHANNELS;
2810 k = 0;
2811 for (i = 0; i < NUM_CHANNELS; i++) {
2812 if (priv->channel_mask & (1 << i)) {
2813 range->freq[k].i = i + 1;
2814 range->freq[k].m = channel_frequency[i] * 100000;
2815 range->freq[k].e = 1;
2816 k++;
2817 }
2818
2819 if (k >= IW_MAX_FREQUENCIES)
2820 break;
2821 }
2822 range->num_frequency = k;
2823 range->sensitivity = 3;
2824
2825 if (priv->has_wep) {
2826 range->max_encoding_tokens = ORINOCO_MAX_KEYS;
2827 range->encoding_size[0] = SMALL_KEY_SIZE;
2828 range->num_encoding_sizes = 1;
2829
2830 if (priv->has_big_wep) {
2831 range->encoding_size[1] = LARGE_KEY_SIZE;
2832 range->num_encoding_sizes = 2;
2833 }
2834 }
2835
2836 if ((priv->iw_mode == IW_MODE_ADHOC) && (!SPY_NUMBER(priv))){
2837 /* Quality stats meaningless in ad-hoc mode */
2838 } else {
2839 range->max_qual.qual = 0x8b - 0x2f;
2840 range->max_qual.level = 0x2f - 0x95 - 1;
2841 range->max_qual.noise = 0x2f - 0x95 - 1;
2842 /* Need to get better values */
2843 range->avg_qual.qual = 0x24;
2844 range->avg_qual.level = 0xC2;
2845 range->avg_qual.noise = 0x9E;
2846 }
2847
2848 err = orinoco_hw_get_bitratelist(priv, &numrates,
2849 range->bitrate, IW_MAX_BITRATES);
2850 if (err)
2851 return err;
2852 range->num_bitrates = numrates;
2853
2854 /* Set an indication of the max TCP throughput in bit/s that we can
2855 * expect using this interface. May be use for QoS stuff...
2856 * Jean II */
2857 if (numrates > 2)
2858 range->throughput = 5 * 1000 * 1000; /* ~5 Mb/s */
2859 else
2860 range->throughput = 1.5 * 1000 * 1000; /* ~1.5 Mb/s */
2861
2862 range->min_rts = 0;
2863 range->max_rts = 2347;
2864 range->min_frag = 256;
2865 range->max_frag = 2346;
2866
2867 range->min_pmp = 0;
2868 range->max_pmp = 65535000;
2869 range->min_pmt = 0;
2870 range->max_pmt = 65535 * 1000; /* ??? */
2871 range->pmp_flags = IW_POWER_PERIOD;
2872 range->pmt_flags = IW_POWER_TIMEOUT;
2873 range->pm_capa = IW_POWER_PERIOD | IW_POWER_TIMEOUT | IW_POWER_UNICAST_R;
2874
2875 range->retry_capa = IW_RETRY_LIMIT | IW_RETRY_LIFETIME;
2876 range->retry_flags = IW_RETRY_LIMIT;
2877 range->r_time_flags = IW_RETRY_LIFETIME;
2878 range->min_retry = 0;
2879 range->max_retry = 65535; /* ??? */
2880 range->min_r_time = 0;
2881 range->max_r_time = 65535 * 1000; /* ??? */
2882
2883 /* Event capability (kernel) */
2884 IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
2885 /* Event capability (driver) */
2886 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWTHRSPY);
2887 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
2888 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
2889 IW_EVENT_CAPA_SET(range->event_capa, IWEVTXDROP);
2890
2891 TRACE_EXIT(dev->name);
2892
2893 return 0;
2894 }
2895
2896 static int orinoco_ioctl_setiwencode(struct net_device *dev,
2897 struct iw_request_info *info,
2898 struct iw_point *erq,
2899 char *keybuf)
2900 {
2901 struct orinoco_private *priv = netdev_priv(dev);
2902 int index = (erq->flags & IW_ENCODE_INDEX) - 1;
2903 int setindex = priv->tx_key;
2904 int enable = priv->wep_on;
2905 int restricted = priv->wep_restrict;
2906 u16 xlen = 0;
2907 int err = -EINPROGRESS; /* Call commit handler */
2908 unsigned long flags;
2909
2910 if (! priv->has_wep)
2911 return -EOPNOTSUPP;
2912
2913 if (erq->pointer) {
2914 /* We actually have a key to set - check its length */
2915 if (erq->length > LARGE_KEY_SIZE)
2916 return -E2BIG;
2917
2918 if ( (erq->length > SMALL_KEY_SIZE) && !priv->has_big_wep )
2919 return -E2BIG;
2920 }
2921
2922 if (orinoco_lock(priv, &flags) != 0)
2923 return -EBUSY;
2924
2925 if (erq->pointer) {
2926 if ((index < 0) || (index >= ORINOCO_MAX_KEYS))
2927 index = priv->tx_key;
2928
2929 /* Adjust key length to a supported value */
2930 if (erq->length > SMALL_KEY_SIZE) {
2931 xlen = LARGE_KEY_SIZE;
2932 } else if (erq->length > 0) {
2933 xlen = SMALL_KEY_SIZE;
2934 } else
2935 xlen = 0;
2936
2937 /* Switch on WEP if off */
2938 if ((!enable) && (xlen > 0)) {
2939 setindex = index;
2940 enable = 1;
2941 }
2942 } else {
2943 /* Important note : if the user do "iwconfig eth0 enc off",
2944 * we will arrive there with an index of -1. This is valid
2945 * but need to be taken care off... Jean II */
2946 if ((index < 0) || (index >= ORINOCO_MAX_KEYS)) {
2947 if((index != -1) || (erq->flags == 0)) {
2948 err = -EINVAL;
2949 goto out;
2950 }
2951 } else {
2952 /* Set the index : Check that the key is valid */
2953 if(priv->keys[index].len == 0) {
2954 err = -EINVAL;
2955 goto out;
2956 }
2957 setindex = index;
2958 }
2959 }
2960
2961 if (erq->flags & IW_ENCODE_DISABLED)
2962 enable = 0;
2963 if (erq->flags & IW_ENCODE_OPEN)
2964 restricted = 0;
2965 if (erq->flags & IW_ENCODE_RESTRICTED)
2966 restricted = 1;
2967
2968 if (erq->pointer) {
2969 priv->keys[index].len = cpu_to_le16(xlen);
2970 memset(priv->keys[index].data, 0,
2971 sizeof(priv->keys[index].data));
2972 memcpy(priv->keys[index].data, keybuf, erq->length);
2973 }
2974 priv->tx_key = setindex;
2975
2976 /* Try fast key change if connected and only keys are changed */
2977 if (priv->wep_on && enable && (priv->wep_restrict == restricted) &&
2978 netif_carrier_ok(dev)) {
2979 err = __orinoco_hw_setup_wepkeys(priv);
2980 /* No need to commit if successful */
2981 goto out;
2982 }
2983
2984 priv->wep_on = enable;
2985 priv->wep_restrict = restricted;
2986
2987 out:
2988 orinoco_unlock(priv, &flags);
2989
2990 return err;
2991 }
2992
2993 static int orinoco_ioctl_getiwencode(struct net_device *dev,
2994 struct iw_request_info *info,
2995 struct iw_point *erq,
2996 char *keybuf)
2997 {
2998 struct orinoco_private *priv = netdev_priv(dev);
2999 int index = (erq->flags & IW_ENCODE_INDEX) - 1;
3000 u16 xlen = 0;
3001 unsigned long flags;
3002
3003 if (! priv->has_wep)
3004 return -EOPNOTSUPP;
3005
3006 if (orinoco_lock(priv, &flags) != 0)
3007 return -EBUSY;
3008
3009 if ((index < 0) || (index >= ORINOCO_MAX_KEYS))
3010 index = priv->tx_key;
3011
3012 erq->flags = 0;
3013 if (! priv->wep_on)
3014 erq->flags |= IW_ENCODE_DISABLED;
3015 erq->flags |= index + 1;
3016
3017 if (priv->wep_restrict)
3018 erq->flags |= IW_ENCODE_RESTRICTED;
3019 else
3020 erq->flags |= IW_ENCODE_OPEN;
3021
3022 xlen = le16_to_cpu(priv->keys[index].len);
3023
3024 erq->length = xlen;
3025
3026 memcpy(keybuf, priv->keys[index].data, ORINOCO_MAX_KEY_SIZE);
3027
3028 orinoco_unlock(priv, &flags);
3029 return 0;
3030 }
3031
3032 static int orinoco_ioctl_setessid(struct net_device *dev,
3033 struct iw_request_info *info,
3034 struct iw_point *erq,
3035 char *essidbuf)
3036 {
3037 struct orinoco_private *priv = netdev_priv(dev);
3038 unsigned long flags;
3039
3040 /* Note : ESSID is ignored in Ad-Hoc demo mode, but we can set it
3041 * anyway... - Jean II */
3042
3043 /* Hum... Should not use Wireless Extension constant (may change),
3044 * should use our own... - Jean II */
3045 if (erq->length > IW_ESSID_MAX_SIZE)
3046 return -E2BIG;
3047
3048 if (orinoco_lock(priv, &flags) != 0)
3049 return -EBUSY;
3050
3051 /* NULL the string (for NULL termination & ESSID = ANY) - Jean II */
3052 memset(priv->desired_essid, 0, sizeof(priv->desired_essid));
3053
3054 /* If not ANY, get the new ESSID */
3055 if (erq->flags) {
3056 memcpy(priv->desired_essid, essidbuf, erq->length);
3057 }
3058
3059 orinoco_unlock(priv, &flags);
3060
3061 return -EINPROGRESS; /* Call commit handler */
3062 }
3063
3064 static int orinoco_ioctl_getessid(struct net_device *dev,
3065 struct iw_request_info *info,
3066 struct iw_point *erq,
3067 char *essidbuf)
3068 {
3069 struct orinoco_private *priv = netdev_priv(dev);
3070 int active;
3071 int err = 0;
3072 unsigned long flags;
3073
3074 TRACE_ENTER(dev->name);
3075
3076 if (netif_running(dev)) {
3077 err = orinoco_hw_get_essid(priv, &active, essidbuf);
3078 if (err)
3079 return err;
3080 } else {
3081 if (orinoco_lock(priv, &flags) != 0)
3082 return -EBUSY;
3083 memcpy(essidbuf, priv->desired_essid, IW_ESSID_MAX_SIZE + 1);
3084 orinoco_unlock(priv, &flags);
3085 }
3086
3087 erq->flags = 1;
3088 erq->length = strlen(essidbuf) + 1;
3089
3090 TRACE_EXIT(dev->name);
3091
3092 return 0;
3093 }
3094
3095 static int orinoco_ioctl_setnick(struct net_device *dev,
3096 struct iw_request_info *info,
3097 struct iw_point *nrq,
3098 char *nickbuf)
3099 {
3100 struct orinoco_private *priv = netdev_priv(dev);
3101 unsigned long flags;
3102
3103 if (nrq->length > IW_ESSID_MAX_SIZE)
3104 return -E2BIG;
3105
3106 if (orinoco_lock(priv, &flags) != 0)
3107 return -EBUSY;
3108
3109 memset(priv->nick, 0, sizeof(priv->nick));
3110 memcpy(priv->nick, nickbuf, nrq->length);
3111
3112 orinoco_unlock(priv, &flags);
3113
3114 return -EINPROGRESS; /* Call commit handler */
3115 }
3116
3117 static int orinoco_ioctl_getnick(struct net_device *dev,
3118 struct iw_request_info *info,
3119 struct iw_point *nrq,
3120 char *nickbuf)
3121 {
3122 struct orinoco_private *priv = netdev_priv(dev);
3123 unsigned long flags;
3124
3125 if (orinoco_lock(priv, &flags) != 0)
3126 return -EBUSY;
3127
3128 memcpy(nickbuf, priv->nick, IW_ESSID_MAX_SIZE+1);
3129 orinoco_unlock(priv, &flags);
3130
3131 nrq->length = strlen(nickbuf)+1;
3132
3133 return 0;
3134 }
3135
3136 static int orinoco_ioctl_setfreq(struct net_device *dev,
3137 struct iw_request_info *info,
3138 struct iw_freq *frq,
3139 char *extra)
3140 {
3141 struct orinoco_private *priv = netdev_priv(dev);
3142 int chan = -1;
3143 unsigned long flags;
3144 int err = -EINPROGRESS; /* Call commit handler */
3145
3146 /* In infrastructure mode the AP sets the channel */
3147 if (priv->iw_mode == IW_MODE_INFRA)
3148 return -EBUSY;
3149
3150 if ( (frq->e == 0) && (frq->m <= 1000) ) {
3151 /* Setting by channel number */
3152 chan = frq->m;
3153 } else {
3154 /* Setting by frequency - search the table */
3155 int mult = 1;
3156 int i;
3157
3158 for (i = 0; i < (6 - frq->e); i++)
3159 mult *= 10;
3160
3161 for (i = 0; i < NUM_CHANNELS; i++)
3162 if (frq->m == (channel_frequency[i] * mult))
3163 chan = i+1;
3164 }
3165
3166 if ( (chan < 1) || (chan > NUM_CHANNELS) ||
3167 ! (priv->channel_mask & (1 << (chan-1)) ) )
3168 return -EINVAL;
3169
3170 if (orinoco_lock(priv, &flags) != 0)
3171 return -EBUSY;
3172
3173 priv->channel = chan;
3174 if (priv->iw_mode == IW_MODE_MONITOR) {
3175 /* Fast channel change - no commit if successful */
3176 hermes_t *hw = &priv->hw;
3177 err = hermes_docmd_wait(hw, HERMES_CMD_TEST |
3178 HERMES_TEST_SET_CHANNEL,
3179 chan, NULL);
3180 }
3181 orinoco_unlock(priv, &flags);
3182
3183 return err;
3184 }
3185
3186 static int orinoco_ioctl_getfreq(struct net_device *dev,
3187 struct iw_request_info *info,
3188 struct iw_freq *frq,
3189 char *extra)
3190 {
3191 struct orinoco_private *priv = netdev_priv(dev);
3192 int tmp;
3193
3194 /* Locking done in there */
3195 tmp = orinoco_hw_get_freq(priv);
3196 if (tmp < 0) {
3197 return tmp;
3198 }
3199
3200 frq->m = tmp;
3201 frq->e = 1;
3202
3203 return 0;
3204 }
3205
3206 static int orinoco_ioctl_getsens(struct net_device *dev,
3207 struct iw_request_info *info,
3208 struct iw_param *srq,
3209 char *extra)
3210 {
3211 struct orinoco_private *priv = netdev_priv(dev);
3212 hermes_t *hw = &priv->hw;
3213 u16 val;
3214 int err;
3215 unsigned long flags;
3216
3217 if (!priv->has_sensitivity)
3218 return -EOPNOTSUPP;
3219
3220 if (orinoco_lock(priv, &flags) != 0)
3221 return -EBUSY;
3222 err = hermes_read_wordrec(hw, USER_BAP,
3223 HERMES_RID_CNFSYSTEMSCALE, &val);
3224 orinoco_unlock(priv, &flags);
3225
3226 if (err)
3227 return err;
3228
3229 srq->value = val;
3230 srq->fixed = 0; /* auto */
3231
3232 return 0;
3233 }
3234
3235 static int orinoco_ioctl_setsens(struct net_device *dev,
3236 struct iw_request_info *info,
3237 struct iw_param *srq,
3238 char *extra)
3239 {
3240 struct orinoco_private *priv = netdev_priv(dev);
3241 int val = srq->value;
3242 unsigned long flags;
3243
3244 if (!priv->has_sensitivity)
3245 return -EOPNOTSUPP;
3246
3247 if ((val < 1) || (val > 3))
3248 return -EINVAL;
3249
3250 if (orinoco_lock(priv, &flags) != 0)
3251 return -EBUSY;
3252 priv->ap_density = val;
3253 orinoco_unlock(priv, &flags);
3254
3255 return -EINPROGRESS; /* Call commit handler */
3256 }
3257
3258 static int orinoco_ioctl_setrts(struct net_device *dev,
3259 struct iw_request_info *info,
3260 struct iw_param *rrq,
3261 char *extra)
3262 {
3263 struct orinoco_private *priv = netdev_priv(dev);
3264 int val = rrq->value;
3265 unsigned long flags;
3266
3267 if (rrq->disabled)
3268 val = 2347;
3269
3270 if ( (val < 0) || (val > 2347) )
3271 return -EINVAL;
3272
3273 if (orinoco_lock(priv, &flags) != 0)
3274 return -EBUSY;
3275
3276 priv->rts_thresh = val;
3277 orinoco_unlock(priv, &flags);
3278
3279 return -EINPROGRESS; /* Call commit handler */
3280 }
3281
3282 static int orinoco_ioctl_getrts(struct net_device *dev,
3283 struct iw_request_info *info,
3284 struct iw_param *rrq,
3285 char *extra)
3286 {
3287 struct orinoco_private *priv = netdev_priv(dev);
3288
3289 rrq->value = priv->rts_thresh;
3290 rrq->disabled = (rrq->value == 2347);
3291 rrq->fixed = 1;
3292
3293 return 0;
3294 }
3295
3296 static int orinoco_ioctl_setfrag(struct net_device *dev,
3297 struct iw_request_info *info,
3298 struct iw_param *frq,
3299 char *extra)
3300 {
3301 struct orinoco_private *priv = netdev_priv(dev);
3302 int err = -EINPROGRESS; /* Call commit handler */
3303 unsigned long flags;
3304
3305 if (orinoco_lock(priv, &flags) != 0)
3306 return -EBUSY;
3307
3308 if (priv->has_mwo) {
3309 if (frq->disabled)
3310 priv->mwo_robust = 0;
3311 else {
3312 if (frq->fixed)
3313 printk(KERN_WARNING "%s: Fixed fragmentation is "
3314 "not supported on this firmware. "
3315 "Using MWO robust instead.\n", dev->name);
3316 priv->mwo_robust = 1;
3317 }
3318 } else {
3319 if (frq->disabled)
3320 priv->frag_thresh = 2346;
3321 else {
3322 if ( (frq->value < 256) || (frq->value > 2346) )
3323 err = -EINVAL;
3324 else
3325 priv->frag_thresh = frq->value & ~0x1; /* must be even */
3326 }
3327 }
3328
3329 orinoco_unlock(priv, &flags);
3330
3331 return err;
3332 }
3333
3334 static int orinoco_ioctl_getfrag(struct net_device *dev,
3335 struct iw_request_info *info,
3336 struct iw_param *frq,
3337 char *extra)
3338 {
3339 struct orinoco_private *priv = netdev_priv(dev);
3340 hermes_t *hw = &priv->hw;
3341 int err;
3342 u16 val;
3343 unsigned long flags;
3344
3345 if (orinoco_lock(priv, &flags) != 0)
3346 return -EBUSY;
3347
3348 if (priv->has_mwo) {
3349 err = hermes_read_wordrec(hw, USER_BAP,
3350 HERMES_RID_CNFMWOROBUST_AGERE,
3351 &val);
3352 if (err)
3353 val = 0;
3354
3355 frq->value = val ? 2347 : 0;
3356 frq->disabled = ! val;
3357 frq->fixed = 0;
3358 } else {
3359 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFFRAGMENTATIONTHRESHOLD,
3360 &val);
3361 if (err)
3362 val = 0;
3363
3364 frq->value = val;
3365 frq->disabled = (val >= 2346);
3366 frq->fixed = 1;
3367 }
3368
3369 orinoco_unlock(priv, &flags);
3370
3371 return err;
3372 }
3373
3374 static int orinoco_ioctl_setrate(struct net_device *dev,
3375 struct iw_request_info *info,
3376 struct iw_param *rrq,
3377 char *extra)
3378 {
3379 struct orinoco_private *priv = netdev_priv(dev);
3380 int ratemode = -1;
3381 int bitrate; /* 100s of kilobits */
3382 int i;
3383 unsigned long flags;
3384
3385 /* As the user space doesn't know our highest rate, it uses -1
3386 * to ask us to set the highest rate. Test it using "iwconfig
3387 * ethX rate auto" - Jean II */
3388 if (rrq->value == -1)
3389 bitrate = 110;
3390 else {
3391 if (rrq->value % 100000)
3392 return -EINVAL;
3393 bitrate = rrq->value / 100000;
3394 }
3395
3396 if ( (bitrate != 10) && (bitrate != 20) &&
3397 (bitrate != 55) && (bitrate != 110) )
3398 return -EINVAL;
3399
3400 for (i = 0; i < BITRATE_TABLE_SIZE; i++)
3401 if ( (bitrate_table[i].bitrate == bitrate) &&
3402 (bitrate_table[i].automatic == ! rrq->fixed) ) {
3403 ratemode = i;
3404 break;
3405 }
3406
3407 if (ratemode == -1)
3408 return -EINVAL;
3409
3410 if (orinoco_lock(priv, &flags) != 0)
3411 return -EBUSY;
3412 priv->bitratemode = ratemode;
3413 orinoco_unlock(priv, &flags);
3414
3415 return -EINPROGRESS;
3416 }
3417
3418 static int orinoco_ioctl_getrate(struct net_device *dev,
3419 struct iw_request_info *info,
3420 struct iw_param *rrq,
3421 char *extra)
3422 {
3423 struct orinoco_private *priv = netdev_priv(dev);
3424 hermes_t *hw = &priv->hw;
3425 int err = 0;
3426 int ratemode;
3427 int i;
3428 u16 val;
3429 unsigned long flags;
3430
3431 if (orinoco_lock(priv, &flags) != 0)
3432 return -EBUSY;
3433
3434 ratemode = priv->bitratemode;
3435
3436 BUG_ON((ratemode < 0) || (ratemode >= BITRATE_TABLE_SIZE));
3437
3438 rrq->value = bitrate_table[ratemode].bitrate * 100000;
3439 rrq->fixed = ! bitrate_table[ratemode].automatic;
3440 rrq->disabled = 0;
3441
3442 /* If the interface is running we try to find more about the
3443 current mode */
3444 if (netif_running(dev)) {
3445 err = hermes_read_wordrec(hw, USER_BAP,
3446 HERMES_RID_CURRENTTXRATE, &val);
3447 if (err)
3448 goto out;
3449
3450 switch (priv->firmware_type) {
3451 case FIRMWARE_TYPE_AGERE: /* Lucent style rate */
3452 /* Note : in Lucent firmware, the return value of
3453 * HERMES_RID_CURRENTTXRATE is the bitrate in Mb/s,
3454 * and therefore is totally different from the
3455 * encoding of HERMES_RID_CNFTXRATECONTROL.
3456 * Don't forget that 6Mb/s is really 5.5Mb/s */
3457 if (val == 6)
3458 rrq->value = 5500000;
3459 else
3460 rrq->value = val * 1000000;
3461 break;
3462 case FIRMWARE_TYPE_INTERSIL: /* Intersil style rate */
3463 case FIRMWARE_TYPE_SYMBOL: /* Symbol style rate */
3464 for (i = 0; i < BITRATE_TABLE_SIZE; i++)
3465 if (bitrate_table[i].intersil_txratectrl == val) {
3466 ratemode = i;
3467 break;
3468 }
3469 if (i >= BITRATE_TABLE_SIZE)
3470 printk(KERN_INFO "%s: Unable to determine current bitrate (0x%04hx)\n",
3471 dev->name, val);
3472
3473 rrq->value = bitrate_table[ratemode].bitrate * 100000;
3474 break;
3475 default:
3476 BUG();
3477 }
3478 }
3479
3480 out:
3481 orinoco_unlock(priv, &flags);
3482
3483 return err;
3484 }
3485
3486 static int orinoco_ioctl_setpower(struct net_device *dev,
3487 struct iw_request_info *info,
3488 struct iw_param *prq,
3489 char *extra)
3490 {
3491 struct orinoco_private *priv = netdev_priv(dev);
3492 int err = -EINPROGRESS; /* Call commit handler */
3493 unsigned long flags;
3494
3495 if (orinoco_lock(priv, &flags) != 0)
3496 return -EBUSY;
3497
3498 if (prq->disabled) {
3499 priv->pm_on = 0;
3500 } else {
3501 switch (prq->flags & IW_POWER_MODE) {
3502 case IW_POWER_UNICAST_R:
3503 priv->pm_mcast = 0;
3504 priv->pm_on = 1;
3505 break;
3506 case IW_POWER_ALL_R:
3507 priv->pm_mcast = 1;
3508 priv->pm_on = 1;
3509 break;
3510 case IW_POWER_ON:
3511 /* No flags : but we may have a value - Jean II */
3512 break;
3513 default:
3514 err = -EINVAL;
3515 goto out;
3516 }
3517
3518 if (prq->flags & IW_POWER_TIMEOUT) {
3519 priv->pm_on = 1;
3520 priv->pm_timeout = prq->value / 1000;
3521 }
3522 if (prq->flags & IW_POWER_PERIOD) {
3523 priv->pm_on = 1;
3524 priv->pm_period = prq->value / 1000;
3525 }
3526 /* It's valid to not have a value if we are just toggling
3527 * the flags... Jean II */
3528 if(!priv->pm_on) {
3529 err = -EINVAL;
3530 goto out;
3531 }
3532 }
3533
3534 out:
3535 orinoco_unlock(priv, &flags);
3536
3537 return err;
3538 }
3539
3540 static int orinoco_ioctl_getpower(struct net_device *dev,
3541 struct iw_request_info *info,
3542 struct iw_param *prq,
3543 char *extra)
3544 {
3545 struct orinoco_private *priv = netdev_priv(dev);
3546 hermes_t *hw = &priv->hw;
3547 int err = 0;
3548 u16 enable, period, timeout, mcast;
3549 unsigned long flags;
3550
3551 if (orinoco_lock(priv, &flags) != 0)
3552 return -EBUSY;
3553
3554 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFPMENABLED, &enable);
3555 if (err)
3556 goto out;
3557
3558 err = hermes_read_wordrec(hw, USER_BAP,
3559 HERMES_RID_CNFMAXSLEEPDURATION, &period);
3560 if (err)
3561 goto out;
3562
3563 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFPMHOLDOVERDURATION, &timeout);
3564 if (err)
3565 goto out;
3566
3567 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFMULTICASTRECEIVE, &mcast);
3568 if (err)
3569 goto out;
3570
3571 prq->disabled = !enable;
3572 /* Note : by default, display the period */
3573 if ((prq->flags & IW_POWER_TYPE) == IW_POWER_TIMEOUT) {
3574 prq->flags = IW_POWER_TIMEOUT;
3575 prq->value = timeout * 1000;
3576 } else {
3577 prq->flags = IW_POWER_PERIOD;
3578 prq->value = period * 1000;
3579 }
3580 if (mcast)
3581 prq->flags |= IW_POWER_ALL_R;
3582 else
3583 prq->flags |= IW_POWER_UNICAST_R;
3584
3585 out:
3586 orinoco_unlock(priv, &flags);
3587
3588 return err;
3589 }
3590
3591 static int orinoco_ioctl_getretry(struct net_device *dev,
3592 struct iw_request_info *info,
3593 struct iw_param *rrq,
3594 char *extra)
3595 {
3596 struct orinoco_private *priv = netdev_priv(dev);
3597 hermes_t *hw = &priv->hw;
3598 int err = 0;
3599 u16 short_limit, long_limit, lifetime;
3600 unsigned long flags;
3601
3602 if (orinoco_lock(priv, &flags) != 0)
3603 return -EBUSY;
3604
3605 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_SHORTRETRYLIMIT,
3606 &short_limit);
3607 if (err)
3608 goto out;
3609
3610 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_LONGRETRYLIMIT,
3611 &long_limit);
3612 if (err)
3613 goto out;
3614
3615 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_MAXTRANSMITLIFETIME,
3616 &lifetime);
3617 if (err)
3618 goto out;
3619
3620 rrq->disabled = 0; /* Can't be disabled */
3621
3622 /* Note : by default, display the retry number */
3623 if ((rrq->flags & IW_RETRY_TYPE) == IW_RETRY_LIFETIME) {
3624 rrq->flags = IW_RETRY_LIFETIME;
3625 rrq->value = lifetime * 1000; /* ??? */
3626 } else {
3627 /* By default, display the min number */
3628 if ((rrq->flags & IW_RETRY_MAX)) {
3629 rrq->flags = IW_RETRY_LIMIT | IW_RETRY_MAX;
3630 rrq->value = long_limit;
3631 } else {
3632 rrq->flags = IW_RETRY_LIMIT;
3633 rrq->value = short_limit;
3634 if(short_limit != long_limit)
3635 rrq->flags |= IW_RETRY_MIN;
3636 }
3637 }
3638
3639 out:
3640 orinoco_unlock(priv, &flags);
3641
3642 return err;
3643 }
3644
3645 static int orinoco_ioctl_reset(struct net_device *dev,
3646 struct iw_request_info *info,
3647 void *wrqu,
3648 char *extra)
3649 {
3650 struct orinoco_private *priv = netdev_priv(dev);
3651
3652 if (! capable(CAP_NET_ADMIN))
3653 return -EPERM;
3654
3655 if (info->cmd == (SIOCIWFIRSTPRIV + 0x1)) {
3656 printk(KERN_DEBUG "%s: Forcing reset!\n", dev->name);
3657
3658 /* Firmware reset */
3659 orinoco_reset(dev);
3660 } else {
3661 printk(KERN_DEBUG "%s: Force scheduling reset!\n", dev->name);
3662
3663 schedule_work(&priv->reset_work);
3664 }
3665
3666 return 0;
3667 }
3668
3669 static int orinoco_ioctl_setibssport(struct net_device *dev,
3670 struct iw_request_info *info,
3671 void *wrqu,
3672 char *extra)
3673
3674 {
3675 struct orinoco_private *priv = netdev_priv(dev);
3676 int val = *( (int *) extra );
3677 unsigned long flags;
3678
3679 if (orinoco_lock(priv, &flags) != 0)
3680 return -EBUSY;
3681
3682 priv->ibss_port = val ;
3683
3684 /* Actually update the mode we are using */
3685 set_port_type(priv);
3686
3687 orinoco_unlock(priv, &flags);
3688 return -EINPROGRESS; /* Call commit handler */
3689 }
3690
3691 static int orinoco_ioctl_getibssport(struct net_device *dev,
3692 struct iw_request_info *info,
3693 void *wrqu,
3694 char *extra)
3695 {
3696 struct orinoco_private *priv = netdev_priv(dev);
3697 int *val = (int *) extra;
3698
3699 *val = priv->ibss_port;
3700 return 0;
3701 }
3702
3703 static int orinoco_ioctl_setport3(struct net_device *dev,
3704 struct iw_request_info *info,
3705 void *wrqu,
3706 char *extra)
3707 {
3708 struct orinoco_private *priv = netdev_priv(dev);
3709 int val = *( (int *) extra );
3710 int err = 0;
3711 unsigned long flags;
3712
3713 if (orinoco_lock(priv, &flags) != 0)
3714 return -EBUSY;
3715
3716 switch (val) {
3717 case 0: /* Try to do IEEE ad-hoc mode */
3718 if (! priv->has_ibss) {
3719 err = -EINVAL;
3720 break;
3721 }
3722 priv->prefer_port3 = 0;
3723
3724 break;
3725
3726 case 1: /* Try to do Lucent proprietary ad-hoc mode */
3727 if (! priv->has_port3) {
3728 err = -EINVAL;
3729 break;
3730 }
3731 priv->prefer_port3 = 1;
3732 break;
3733
3734 default:
3735 err = -EINVAL;
3736 }
3737
3738 if (! err) {
3739 /* Actually update the mode we are using */
3740 set_port_type(priv);
3741 err = -EINPROGRESS;
3742 }
3743
3744 orinoco_unlock(priv, &flags);
3745
3746 return err;
3747 }
3748
3749 static int orinoco_ioctl_getport3(struct net_device *dev,
3750 struct iw_request_info *info,
3751 void *wrqu,
3752 char *extra)
3753 {
3754 struct orinoco_private *priv = netdev_priv(dev);
3755 int *val = (int *) extra;
3756
3757 *val = priv->prefer_port3;
3758 return 0;
3759 }
3760
3761 static int orinoco_ioctl_setpreamble(struct net_device *dev,
3762 struct iw_request_info *info,
3763 void *wrqu,
3764 char *extra)
3765 {
3766 struct orinoco_private *priv = netdev_priv(dev);
3767 unsigned long flags;
3768 int val;
3769
3770 if (! priv->has_preamble)
3771 return -EOPNOTSUPP;
3772
3773 /* 802.11b has recently defined some short preamble.
3774 * Basically, the Phy header has been reduced in size.
3775 * This increase performance, especially at high rates
3776 * (the preamble is transmitted at 1Mb/s), unfortunately
3777 * this give compatibility troubles... - Jean II */
3778 val = *( (int *) extra );
3779
3780 if (orinoco_lock(priv, &flags) != 0)
3781 return -EBUSY;
3782
3783 if (val)
3784 priv->preamble = 1;
3785 else
3786 priv->preamble = 0;
3787
3788 orinoco_unlock(priv, &flags);
3789
3790 return -EINPROGRESS; /* Call commit handler */
3791 }
3792
3793 static int orinoco_ioctl_getpreamble(struct net_device *dev,
3794 struct iw_request_info *info,
3795 void *wrqu,
3796 char *extra)
3797 {
3798 struct orinoco_private *priv = netdev_priv(dev);
3799 int *val = (int *) extra;
3800
3801 if (! priv->has_preamble)
3802 return -EOPNOTSUPP;
3803
3804 *val = priv->preamble;
3805 return 0;
3806 }
3807
3808 /* ioctl interface to hermes_read_ltv()
3809 * To use with iwpriv, pass the RID as the token argument, e.g.
3810 * iwpriv get_rid [0xfc00]
3811 * At least Wireless Tools 25 is required to use iwpriv.
3812 * For Wireless Tools 25 and 26 append "dummy" are the end. */
3813 static int orinoco_ioctl_getrid(struct net_device *dev,
3814 struct iw_request_info *info,
3815 struct iw_point *data,
3816 char *extra)
3817 {
3818 struct orinoco_private *priv = netdev_priv(dev);
3819 hermes_t *hw = &priv->hw;
3820 int rid = data->flags;
3821 u16 length;
3822 int err;
3823 unsigned long flags;
3824
3825 /* It's a "get" function, but we don't want users to access the
3826 * WEP key and other raw firmware data */
3827 if (! capable(CAP_NET_ADMIN))
3828 return -EPERM;
3829
3830 if (rid < 0xfc00 || rid > 0xffff)
3831 return -EINVAL;
3832
3833 if (orinoco_lock(priv, &flags) != 0)
3834 return -EBUSY;
3835
3836 err = hermes_read_ltv(hw, USER_BAP, rid, MAX_RID_LEN, &length,
3837 extra);
3838 if (err)
3839 goto out;
3840
3841 data->length = min_t(u16, HERMES_RECLEN_TO_BYTES(length),
3842 MAX_RID_LEN);
3843
3844 out:
3845 orinoco_unlock(priv, &flags);
3846 return err;
3847 }
3848
3849 /* Trigger a scan (look for other cells in the vicinity */
3850 static int orinoco_ioctl_setscan(struct net_device *dev,
3851 struct iw_request_info *info,
3852 struct iw_param *srq,
3853 char *extra)
3854 {
3855 struct orinoco_private *priv = netdev_priv(dev);
3856 hermes_t *hw = &priv->hw;
3857 int err = 0;
3858 unsigned long flags;
3859
3860 /* Note : you may have realised that, as this is a SET operation,
3861 * this is priviledged and therefore a normal user can't
3862 * perform scanning.
3863 * This is not an error, while the device perform scanning,
3864 * traffic doesn't flow, so it's a perfect DoS...
3865 * Jean II */
3866
3867 if (orinoco_lock(priv, &flags) != 0)
3868 return -EBUSY;
3869
3870 /* Scanning with port 0 disabled would fail */
3871 if (!netif_running(dev)) {
3872 err = -ENETDOWN;
3873 goto out;
3874 }
3875
3876 /* In monitor mode, the scan results are always empty.
3877 * Probe responses are passed to the driver as received
3878 * frames and could be processed in software. */
3879 if (priv->iw_mode == IW_MODE_MONITOR) {
3880 err = -EOPNOTSUPP;
3881 goto out;
3882 }
3883
3884 /* Note : because we don't lock out the irq handler, the way
3885 * we access scan variables in priv is critical.
3886 * o scan_inprogress : not touched by irq handler
3887 * o scan_mode : not touched by irq handler
3888 * o scan_result : irq is strict producer, non-irq is strict
3889 * consumer.
3890 * o scan_len : synchronised with scan_result
3891 * Before modifying anything on those variables, please think hard !
3892 * Jean II */
3893
3894 /* If there is still some left-over scan results, get rid of it */
3895 if (priv->scan_result != NULL) {
3896 /* What's likely is that a client did crash or was killed
3897 * between triggering the scan request and reading the
3898 * results, so we need to reset everything.
3899 * Some clients that are too slow may suffer from that...
3900 * Jean II */
3901 kfree(priv->scan_result);
3902 priv->scan_result = NULL;
3903 }
3904
3905 /* Save flags */
3906 priv->scan_mode = srq->flags;
3907
3908 /* Always trigger scanning, even if it's in progress.
3909 * This way, if the info frame get lost, we will recover somewhat
3910 * gracefully - Jean II */
3911
3912 if (priv->has_hostscan) {
3913 switch (priv->firmware_type) {
3914 case FIRMWARE_TYPE_SYMBOL:
3915 err = hermes_write_wordrec(hw, USER_BAP,
3916 HERMES_RID_CNFHOSTSCAN_SYMBOL,
3917 HERMES_HOSTSCAN_SYMBOL_ONCE |
3918 HERMES_HOSTSCAN_SYMBOL_BCAST);
3919 break;
3920 case FIRMWARE_TYPE_INTERSIL: {
3921 __le16 req[3];
3922
3923 req[0] = cpu_to_le16(0x3fff); /* All channels */
3924 req[1] = cpu_to_le16(0x0001); /* rate 1 Mbps */
3925 req[2] = 0; /* Any ESSID */
3926 err = HERMES_WRITE_RECORD(hw, USER_BAP,
3927 HERMES_RID_CNFHOSTSCAN, &req);
3928 }
3929 break;
3930 case FIRMWARE_TYPE_AGERE:
3931 err = hermes_write_wordrec(hw, USER_BAP,
3932 HERMES_RID_CNFSCANSSID_AGERE,
3933 0); /* Any ESSID */
3934 if (err)
3935 break;
3936
3937 err = hermes_inquire(hw, HERMES_INQ_SCAN);
3938 break;
3939 }
3940 } else
3941 err = hermes_inquire(hw, HERMES_INQ_SCAN);
3942
3943 /* One more client */
3944 if (! err)
3945 priv->scan_inprogress = 1;
3946
3947 out:
3948 orinoco_unlock(priv, &flags);
3949 return err;
3950 }
3951
3952 /* Translate scan data returned from the card to a card independant
3953 * format that the Wireless Tools will understand - Jean II
3954 * Return message length or -errno for fatal errors */
3955 static inline int orinoco_translate_scan(struct net_device *dev,
3956 char *buffer,
3957 char *scan,
3958 int scan_len)
3959 {
3960 struct orinoco_private *priv = netdev_priv(dev);
3961 int offset; /* In the scan data */
3962 union hermes_scan_info *atom;
3963 int atom_len;
3964 u16 capabilities;
3965 u16 channel;
3966 struct iw_event iwe; /* Temporary buffer */
3967 char * current_ev = buffer;
3968 char * end_buf = buffer + IW_SCAN_MAX_DATA;
3969
3970 switch (priv->firmware_type) {
3971 case FIRMWARE_TYPE_AGERE:
3972 atom_len = sizeof(struct agere_scan_apinfo);
3973 offset = 0;
3974 break;
3975 case FIRMWARE_TYPE_SYMBOL:
3976 /* Lack of documentation necessitates this hack.
3977 * Different firmwares have 68 or 76 byte long atoms.
3978 * We try modulo first. If the length divides by both,
3979 * we check what would be the channel in the second
3980 * frame for a 68-byte atom. 76-byte atoms have 0 there.
3981 * Valid channel cannot be 0. */
3982 if (scan_len % 76)
3983 atom_len = 68;
3984 else if (scan_len % 68)
3985 atom_len = 76;
3986 else if (scan_len >= 1292 && scan[68] == 0)
3987 atom_len = 76;
3988 else
3989 atom_len = 68;
3990 offset = 0;
3991 break;
3992 case FIRMWARE_TYPE_INTERSIL:
3993 offset = 4;
3994 if (priv->has_hostscan) {
3995 atom_len = le16_to_cpup((__le16 *)scan);
3996 /* Sanity check for atom_len */
3997 if (atom_len < sizeof(struct prism2_scan_apinfo)) {
3998 printk(KERN_ERR "%s: Invalid atom_len in scan data: %d\n",
3999 dev->name, atom_len);
4000 return -EIO;
4001 }
4002 } else
4003 atom_len = offsetof(struct prism2_scan_apinfo, atim);
4004 break;
4005 default:
4006 return -EOPNOTSUPP;
4007 }
4008
4009 /* Check that we got an whole number of atoms */
4010 if ((scan_len - offset) % atom_len) {
4011 printk(KERN_ERR "%s: Unexpected scan data length %d, "
4012 "atom_len %d, offset %d\n", dev->name, scan_len,
4013 atom_len, offset);
4014 return -EIO;
4015 }
4016
4017 /* Read the entries one by one */
4018 for (; offset + atom_len <= scan_len; offset += atom_len) {
4019 /* Get next atom */
4020 atom = (union hermes_scan_info *) (scan + offset);
4021
4022 /* First entry *MUST* be the AP MAC address */
4023 iwe.cmd = SIOCGIWAP;
4024 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
4025 memcpy(iwe.u.ap_addr.sa_data, atom->a.bssid, ETH_ALEN);
4026 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_ADDR_LEN);
4027
4028 /* Other entries will be displayed in the order we give them */
4029
4030 /* Add the ESSID */
4031 iwe.u.data.length = le16_to_cpu(atom->a.essid_len);
4032 if (iwe.u.data.length > 32)
4033 iwe.u.data.length = 32;
4034 iwe.cmd = SIOCGIWESSID;
4035 iwe.u.data.flags = 1;
4036 current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe, atom->a.essid);
4037
4038 /* Add mode */
4039 iwe.cmd = SIOCGIWMODE;
4040 capabilities = le16_to_cpu(atom->a.capabilities);
4041 if (capabilities & 0x3) {
4042 if (capabilities & 0x1)
4043 iwe.u.mode = IW_MODE_MASTER;
4044 else
4045 iwe.u.mode = IW_MODE_ADHOC;
4046 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_UINT_LEN);
4047 }
4048
4049 channel = atom->s.channel;
4050 if ( (channel >= 1) && (channel <= NUM_CHANNELS) ) {
4051 /* Add frequency */
4052 iwe.cmd = SIOCGIWFREQ;
4053 iwe.u.freq.m = channel_frequency[channel-1] * 100000;
4054 iwe.u.freq.e = 1;
4055 current_ev = iwe_stream_add_event(current_ev, end_buf,
4056 &iwe, IW_EV_FREQ_LEN);
4057 }
4058
4059 /* Add quality statistics */
4060 iwe.cmd = IWEVQUAL;
4061 iwe.u.qual.updated = 0x10; /* no link quality */
4062 iwe.u.qual.level = (__u8) le16_to_cpu(atom->a.level) - 0x95;
4063 iwe.u.qual.noise = (__u8) le16_to_cpu(atom->a.noise) - 0x95;
4064 /* Wireless tools prior to 27.pre22 will show link quality
4065 * anyway, so we provide a reasonable value. */
4066 if (iwe.u.qual.level > iwe.u.qual.noise)
4067 iwe.u.qual.qual = iwe.u.qual.level - iwe.u.qual.noise;
4068 else
4069 iwe.u.qual.qual = 0;
4070 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_QUAL_LEN);
4071
4072 /* Add encryption capability */
4073 iwe.cmd = SIOCGIWENCODE;
4074 if (capabilities & 0x10)
4075 iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
4076 else
4077 iwe.u.data.flags = IW_ENCODE_DISABLED;
4078 iwe.u.data.length = 0;
4079 current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe, atom->a.essid);
4080
4081 /* Bit rate is not available in Lucent/Agere firmwares */
4082 if (priv->firmware_type != FIRMWARE_TYPE_AGERE) {
4083 char * current_val = current_ev + IW_EV_LCP_LEN;
4084 int i;
4085 int step;
4086
4087 if (priv->firmware_type == FIRMWARE_TYPE_SYMBOL)
4088 step = 2;
4089 else
4090 step = 1;
4091
4092 iwe.cmd = SIOCGIWRATE;
4093 /* Those two flags are ignored... */
4094 iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
4095 /* Max 10 values */
4096 for (i = 0; i < 10; i += step) {
4097 /* NULL terminated */
4098 if (atom->p.rates[i] == 0x0)
4099 break;
4100 /* Bit rate given in 500 kb/s units (+ 0x80) */
4101 iwe.u.bitrate.value = ((atom->p.rates[i] & 0x7f) * 500000);
4102 current_val = iwe_stream_add_value(current_ev, current_val,
4103 end_buf, &iwe,
4104 IW_EV_PARAM_LEN);
4105 }
4106 /* Check if we added any event */
4107 if ((current_val - current_ev) > IW_EV_LCP_LEN)
4108 current_ev = current_val;
4109 }
4110
4111 /* The other data in the scan result are not really
4112 * interesting, so for now drop it - Jean II */
4113 }
4114 return current_ev - buffer;
4115 }
4116
4117 /* Return results of a scan */
4118 static int orinoco_ioctl_getscan(struct net_device *dev,
4119 struct iw_request_info *info,
4120 struct iw_point *srq,
4121 char *extra)
4122 {
4123 struct orinoco_private *priv = netdev_priv(dev);
4124 int err = 0;
4125 unsigned long flags;
4126
4127 if (orinoco_lock(priv, &flags) != 0)
4128 return -EBUSY;
4129
4130 /* If no results yet, ask to try again later */
4131 if (priv->scan_result == NULL) {
4132 if (priv->scan_inprogress)
4133 /* Important note : we don't want to block the caller
4134 * until results are ready for various reasons.
4135 * First, managing wait queues is complex and racy.
4136 * Second, we grab some rtnetlink lock before comming
4137 * here (in dev_ioctl()).
4138 * Third, we generate an Wireless Event, so the
4139 * caller can wait itself on that - Jean II */
4140 err = -EAGAIN;
4141 else
4142 /* Client error, no scan results...
4143 * The caller need to restart the scan. */
4144 err = -ENODATA;
4145 } else {
4146 /* We have some results to push back to user space */
4147
4148 /* Translate to WE format */
4149 int ret = orinoco_translate_scan(dev, extra,
4150 priv->scan_result,
4151 priv->scan_len);
4152
4153 if (ret < 0) {
4154 err = ret;
4155 kfree(priv->scan_result);
4156 priv->scan_result = NULL;
4157 } else {
4158 srq->length = ret;
4159
4160 /* Return flags */
4161 srq->flags = (__u16) priv->scan_mode;
4162
4163 /* In any case, Scan results will be cleaned up in the
4164 * reset function and when exiting the driver.
4165 * The person triggering the scanning may never come to
4166 * pick the results, so we need to do it in those places.
4167 * Jean II */
4168
4169 #ifdef SCAN_SINGLE_READ
4170 /* If you enable this option, only one client (the first
4171 * one) will be able to read the result (and only one
4172 * time). If there is multiple concurent clients that
4173 * want to read scan results, this behavior is not
4174 * advisable - Jean II */
4175 kfree(priv->scan_result);
4176 priv->scan_result = NULL;
4177 #endif /* SCAN_SINGLE_READ */
4178 /* Here, if too much time has elapsed since last scan,
4179 * we may want to clean up scan results... - Jean II */
4180 }
4181
4182 /* Scan is no longer in progress */
4183 priv->scan_inprogress = 0;
4184 }
4185
4186 orinoco_unlock(priv, &flags);
4187 return err;
4188 }
4189
4190 /* Commit handler, called after set operations */
4191 static int orinoco_ioctl_commit(struct net_device *dev,
4192 struct iw_request_info *info,
4193 void *wrqu,
4194 char *extra)
4195 {
4196 struct orinoco_private *priv = netdev_priv(dev);
4197 struct hermes *hw = &priv->hw;
4198 unsigned long flags;
4199 int err = 0;
4200
4201 if (!priv->open)
4202 return 0;
4203
4204 if (priv->broken_disableport) {
4205 orinoco_reset(dev);
4206 return 0;
4207 }
4208
4209 if (orinoco_lock(priv, &flags) != 0)
4210 return err;
4211
4212 err = hermes_disable_port(hw, 0);
4213 if (err) {
4214 printk(KERN_WARNING "%s: Unable to disable port "
4215 "while reconfiguring card\n", dev->name);
4216 priv->broken_disableport = 1;
4217 goto out;
4218 }
4219
4220 err = __orinoco_program_rids(dev);
4221 if (err) {
4222 printk(KERN_WARNING "%s: Unable to reconfigure card\n",
4223 dev->name);
4224 goto out;
4225 }
4226
4227 err = hermes_enable_port(hw, 0);
4228 if (err) {
4229 printk(KERN_WARNING "%s: Unable to enable port while reconfiguring card\n",
4230 dev->name);
4231 goto out;
4232 }
4233
4234 out:
4235 if (err) {
4236 printk(KERN_WARNING "%s: Resetting instead...\n", dev->name);
4237 schedule_work(&priv->reset_work);
4238 err = 0;
4239 }
4240
4241 orinoco_unlock(priv, &flags);
4242 return err;
4243 }
4244
4245 static const struct iw_priv_args orinoco_privtab[] = {
4246 { SIOCIWFIRSTPRIV + 0x0, 0, 0, "force_reset" },
4247 { SIOCIWFIRSTPRIV + 0x1, 0, 0, "card_reset" },
4248 { SIOCIWFIRSTPRIV + 0x2, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
4249 0, "set_port3" },
4250 { SIOCIWFIRSTPRIV + 0x3, 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
4251 "get_port3" },
4252 { SIOCIWFIRSTPRIV + 0x4, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
4253 0, "set_preamble" },
4254 { SIOCIWFIRSTPRIV + 0x5, 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
4255 "get_preamble" },
4256 { SIOCIWFIRSTPRIV + 0x6, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
4257 0, "set_ibssport" },
4258 { SIOCIWFIRSTPRIV + 0x7, 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
4259 "get_ibssport" },
4260 { SIOCIWFIRSTPRIV + 0x9, 0, IW_PRIV_TYPE_BYTE | MAX_RID_LEN,
4261 "get_rid" },
4262 };
4263
4264
4265 /*
4266 * Structures to export the Wireless Handlers
4267 */
4268
4269 static const iw_handler orinoco_handler[] = {
4270 [SIOCSIWCOMMIT-SIOCIWFIRST] = (iw_handler) orinoco_ioctl_commit,
4271 [SIOCGIWNAME -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getname,
4272 [SIOCSIWFREQ -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setfreq,
4273 [SIOCGIWFREQ -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getfreq,
4274 [SIOCSIWMODE -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setmode,
4275 [SIOCGIWMODE -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getmode,
4276 [SIOCSIWSENS -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setsens,
4277 [SIOCGIWSENS -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getsens,
4278 [SIOCGIWRANGE -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getiwrange,
4279 [SIOCSIWSPY -SIOCIWFIRST] = (iw_handler) iw_handler_set_spy,
4280 [SIOCGIWSPY -SIOCIWFIRST] = (iw_handler) iw_handler_get_spy,
4281 [SIOCSIWTHRSPY-SIOCIWFIRST] = (iw_handler) iw_handler_set_thrspy,
4282 [SIOCGIWTHRSPY-SIOCIWFIRST] = (iw_handler) iw_handler_get_thrspy,
4283 [SIOCSIWAP -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setwap,
4284 [SIOCGIWAP -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getwap,
4285 [SIOCSIWSCAN -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setscan,
4286 [SIOCGIWSCAN -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getscan,
4287 [SIOCSIWESSID -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setessid,
4288 [SIOCGIWESSID -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getessid,
4289 [SIOCSIWNICKN -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setnick,
4290 [SIOCGIWNICKN -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getnick,
4291 [SIOCSIWRATE -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setrate,
4292 [SIOCGIWRATE -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getrate,
4293 [SIOCSIWRTS -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setrts,
4294 [SIOCGIWRTS -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getrts,
4295 [SIOCSIWFRAG -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setfrag,
4296 [SIOCGIWFRAG -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getfrag,
4297 [SIOCGIWRETRY -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getretry,
4298 [SIOCSIWENCODE-SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setiwencode,
4299 [SIOCGIWENCODE-SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getiwencode,
4300 [SIOCSIWPOWER -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setpower,
4301 [SIOCGIWPOWER -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getpower,
4302 };
4303
4304
4305 /*
4306 Added typecasting since we no longer use iwreq_data -- Moustafa
4307 */
4308 static const iw_handler orinoco_private_handler[] = {
4309 [0] = (iw_handler) orinoco_ioctl_reset,
4310 [1] = (iw_handler) orinoco_ioctl_reset,
4311 [2] = (iw_handler) orinoco_ioctl_setport3,
4312 [3] = (iw_handler) orinoco_ioctl_getport3,
4313 [4] = (iw_handler) orinoco_ioctl_setpreamble,
4314 [5] = (iw_handler) orinoco_ioctl_getpreamble,
4315 [6] = (iw_handler) orinoco_ioctl_setibssport,
4316 [7] = (iw_handler) orinoco_ioctl_getibssport,
4317 [9] = (iw_handler) orinoco_ioctl_getrid,
4318 };
4319
4320 static const struct iw_handler_def orinoco_handler_def = {
4321 .num_standard = ARRAY_SIZE(orinoco_handler),
4322 .num_private = ARRAY_SIZE(orinoco_private_handler),
4323 .num_private_args = ARRAY_SIZE(orinoco_privtab),
4324 .standard = orinoco_handler,
4325 .private = orinoco_private_handler,
4326 .private_args = orinoco_privtab,
4327 .get_wireless_stats = orinoco_get_wireless_stats,
4328 };
4329
4330 static void orinoco_get_drvinfo(struct net_device *dev,
4331 struct ethtool_drvinfo *info)
4332 {
4333 struct orinoco_private *priv = netdev_priv(dev);
4334
4335 strncpy(info->driver, DRIVER_NAME, sizeof(info->driver) - 1);
4336 strncpy(info->version, DRIVER_VERSION, sizeof(info->version) - 1);
4337 strncpy(info->fw_version, priv->fw_name, sizeof(info->fw_version) - 1);
4338 if (dev->class_dev.dev)
4339 strncpy(info->bus_info, dev->class_dev.dev->bus_id,
4340 sizeof(info->bus_info) - 1);
4341 else
4342 snprintf(info->bus_info, sizeof(info->bus_info) - 1,
4343 "PCMCIA %p", priv->hw.iobase);
4344 }
4345
4346 static struct ethtool_ops orinoco_ethtool_ops = {
4347 .get_drvinfo = orinoco_get_drvinfo,
4348 .get_link = ethtool_op_get_link,
4349 };
4350
4351 /********************************************************************/
4352 /* Debugging */
4353 /********************************************************************/
4354
4355 #if 0
4356 static void show_rx_frame(struct orinoco_rxframe_hdr *frame)
4357 {
4358 printk(KERN_DEBUG "RX descriptor:\n");
4359 printk(KERN_DEBUG " status = 0x%04x\n", frame->desc.status);
4360 printk(KERN_DEBUG " time = 0x%08x\n", frame->desc.time);
4361 printk(KERN_DEBUG " silence = 0x%02x\n", frame->desc.silence);
4362 printk(KERN_DEBUG " signal = 0x%02x\n", frame->desc.signal);
4363 printk(KERN_DEBUG " rate = 0x%02x\n", frame->desc.rate);
4364 printk(KERN_DEBUG " rxflow = 0x%02x\n", frame->desc.rxflow);
4365 printk(KERN_DEBUG " reserved = 0x%08x\n", frame->desc.reserved);
4366
4367 printk(KERN_DEBUG "IEEE 802.11 header:\n");
4368 printk(KERN_DEBUG " frame_ctl = 0x%04x\n",
4369 frame->p80211.frame_ctl);
4370 printk(KERN_DEBUG " duration_id = 0x%04x\n",
4371 frame->p80211.duration_id);
4372 printk(KERN_DEBUG " addr1 = %02x:%02x:%02x:%02x:%02x:%02x\n",
4373 frame->p80211.addr1[0], frame->p80211.addr1[1],
4374 frame->p80211.addr1[2], frame->p80211.addr1[3],
4375 frame->p80211.addr1[4], frame->p80211.addr1[5]);
4376 printk(KERN_DEBUG " addr2 = %02x:%02x:%02x:%02x:%02x:%02x\n",
4377 frame->p80211.addr2[0], frame->p80211.addr2[1],
4378 frame->p80211.addr2[2], frame->p80211.addr2[3],
4379 frame->p80211.addr2[4], frame->p80211.addr2[5]);
4380 printk(KERN_DEBUG " addr3 = %02x:%02x:%02x:%02x:%02x:%02x\n",
4381 frame->p80211.addr3[0], frame->p80211.addr3[1],
4382 frame->p80211.addr3[2], frame->p80211.addr3[3],
4383 frame->p80211.addr3[4], frame->p80211.addr3[5]);
4384 printk(KERN_DEBUG " seq_ctl = 0x%04x\n",
4385 frame->p80211.seq_ctl);
4386 printk(KERN_DEBUG " addr4 = %02x:%02x:%02x:%02x:%02x:%02x\n",
4387 frame->p80211.addr4[0], frame->p80211.addr4[1],
4388 frame->p80211.addr4[2], frame->p80211.addr4[3],
4389 frame->p80211.addr4[4], frame->p80211.addr4[5]);
4390 printk(KERN_DEBUG " data_len = 0x%04x\n",
4391 frame->p80211.data_len);
4392
4393 printk(KERN_DEBUG "IEEE 802.3 header:\n");
4394 printk(KERN_DEBUG " dest = %02x:%02x:%02x:%02x:%02x:%02x\n",
4395 frame->p8023.h_dest[0], frame->p8023.h_dest[1],
4396 frame->p8023.h_dest[2], frame->p8023.h_dest[3],
4397 frame->p8023.h_dest[4], frame->p8023.h_dest[5]);
4398 printk(KERN_DEBUG " src = %02x:%02x:%02x:%02x:%02x:%02x\n",
4399 frame->p8023.h_source[0], frame->p8023.h_source[1],
4400 frame->p8023.h_source[2], frame->p8023.h_source[3],
4401 frame->p8023.h_source[4], frame->p8023.h_source[5]);
4402 printk(KERN_DEBUG " len = 0x%04x\n", frame->p8023.h_proto);
4403
4404 printk(KERN_DEBUG "IEEE 802.2 LLC/SNAP header:\n");
4405 printk(KERN_DEBUG " DSAP = 0x%02x\n", frame->p8022.dsap);
4406 printk(KERN_DEBUG " SSAP = 0x%02x\n", frame->p8022.ssap);
4407 printk(KERN_DEBUG " ctrl = 0x%02x\n", frame->p8022.ctrl);
4408 printk(KERN_DEBUG " OUI = %02x:%02x:%02x\n",
4409 frame->p8022.oui[0], frame->p8022.oui[1], frame->p8022.oui[2]);
4410 printk(KERN_DEBUG " ethertype = 0x%04x\n", frame->ethertype);
4411 }
4412 #endif /* 0 */
4413
4414 /********************************************************************/
4415 /* Module initialization */
4416 /********************************************************************/
4417
4418 EXPORT_SYMBOL(alloc_orinocodev);
4419 EXPORT_SYMBOL(free_orinocodev);
4420
4421 EXPORT_SYMBOL(__orinoco_up);
4422 EXPORT_SYMBOL(__orinoco_down);
4423 EXPORT_SYMBOL(orinoco_reinit_firmware);
4424
4425 EXPORT_SYMBOL(orinoco_interrupt);
4426
4427 /* Can't be declared "const" or the whole __initdata section will
4428 * become const */
4429 static char version[] __initdata = DRIVER_NAME " " DRIVER_VERSION
4430 " (David Gibson <hermes@gibson.dropbear.id.au>, "
4431 "Pavel Roskin <proski@gnu.org>, et al)";
4432
4433 static int __init init_orinoco(void)
4434 {
4435 printk(KERN_DEBUG "%s\n", version);
4436 return 0;
4437 }
4438
4439 static void __exit exit_orinoco(void)
4440 {
4441 }
4442
4443 module_init(init_orinoco);
4444 module_exit(exit_orinoco);
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