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[deliverable/linux.git] / drivers / net / wireless / orinoco.c
1 /* orinoco.c - (formerly known as dldwd_cs.c and orinoco_cs.c)
2 *
3 * A driver for Hermes or Prism 2 chipset based PCMCIA wireless
4 * adaptors, with Lucent/Agere, Intersil or Symbol firmware.
5 *
6 * Current maintainers (as of 29 September 2003) are:
7 * Pavel Roskin <proski AT gnu.org>
8 * and David Gibson <hermes AT gibson.dropbear.id.au>
9 *
10 * (C) Copyright David Gibson, IBM Corporation 2001-2003.
11 * Copyright (C) 2000 David Gibson, Linuxcare Australia.
12 * With some help from :
13 * Copyright (C) 2001 Jean Tourrilhes, HP Labs
14 * Copyright (C) 2001 Benjamin Herrenschmidt
15 *
16 * Based on dummy_cs.c 1.27 2000/06/12 21:27:25
17 *
18 * Portions based on wvlan_cs.c 1.0.6, Copyright Andreas Neuhaus <andy
19 * AT fasta.fh-dortmund.de>
20 * http://www.stud.fh-dortmund.de/~andy/wvlan/
21 *
22 * The contents of this file are subject to the Mozilla Public License
23 * Version 1.1 (the "License"); you may not use this file except in
24 * compliance with the License. You may obtain a copy of the License
25 * at http://www.mozilla.org/MPL/
26 *
27 * Software distributed under the License is distributed on an "AS IS"
28 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
29 * the License for the specific language governing rights and
30 * limitations under the License.
31 *
32 * The initial developer of the original code is David A. Hinds
33 * <dahinds AT users.sourceforge.net>. Portions created by David
34 * A. Hinds are Copyright (C) 1999 David A. Hinds. All Rights
35 * Reserved.
36 *
37 * Alternatively, the contents of this file may be used under the
38 * terms of the GNU General Public License version 2 (the "GPL"), in
39 * which case the provisions of the GPL are applicable instead of the
40 * above. If you wish to allow the use of your version of this file
41 * only under the terms of the GPL and not to allow others to use your
42 * version of this file under the MPL, indicate your decision by
43 * deleting the provisions above and replace them with the notice and
44 * other provisions required by the GPL. If you do not delete the
45 * provisions above, a recipient may use your version of this file
46 * under either the MPL or the GPL. */
47
48 /*
49 * TODO
50 * o Handle de-encapsulation within network layer, provide 802.11
51 * headers (patch from Thomas 'Dent' Mirlacher)
52 * o Fix possible races in SPY handling.
53 * o Disconnect wireless extensions from fundamental configuration.
54 * o (maybe) Software WEP support (patch from Stano Meduna).
55 * o (maybe) Use multiple Tx buffers - driver handling queue
56 * rather than firmware.
57 */
58
59 /* Locking and synchronization:
60 *
61 * The basic principle is that everything is serialized through a
62 * single spinlock, priv->lock. The lock is used in user, bh and irq
63 * context, so when taken outside hardirq context it should always be
64 * taken with interrupts disabled. The lock protects both the
65 * hardware and the struct orinoco_private.
66 *
67 * Another flag, priv->hw_unavailable indicates that the hardware is
68 * unavailable for an extended period of time (e.g. suspended, or in
69 * the middle of a hard reset). This flag is protected by the
70 * spinlock. All code which touches the hardware should check the
71 * flag after taking the lock, and if it is set, give up on whatever
72 * they are doing and drop the lock again. The orinoco_lock()
73 * function handles this (it unlocks and returns -EBUSY if
74 * hw_unavailable is non-zero).
75 */
76
77 #define DRIVER_NAME "orinoco"
78
79 #include <linux/config.h>
80
81 #include <linux/module.h>
82 #include <linux/kernel.h>
83 #include <linux/init.h>
84 #include <linux/ptrace.h>
85 #include <linux/slab.h>
86 #include <linux/string.h>
87 #include <linux/timer.h>
88 #include <linux/ioport.h>
89 #include <linux/netdevice.h>
90 #include <linux/if_arp.h>
91 #include <linux/etherdevice.h>
92 #include <linux/ethtool.h>
93 #include <linux/wireless.h>
94 #include <net/iw_handler.h>
95 #include <net/ieee80211.h>
96
97 #include <net/ieee80211.h>
98
99 #include <asm/uaccess.h>
100 #include <asm/io.h>
101 #include <asm/system.h>
102
103 #include "hermes.h"
104 #include "hermes_rid.h"
105 #include "orinoco.h"
106
107 /********************************************************************/
108 /* Module information */
109 /********************************************************************/
110
111 MODULE_AUTHOR("Pavel Roskin <proski@gnu.org> & David Gibson <hermes@gibson.dropbear.id.au>");
112 MODULE_DESCRIPTION("Driver for Lucent Orinoco, Prism II based and similar wireless cards");
113 MODULE_LICENSE("Dual MPL/GPL");
114
115 /* Level of debugging. Used in the macros in orinoco.h */
116 #ifdef ORINOCO_DEBUG
117 int orinoco_debug = ORINOCO_DEBUG;
118 module_param(orinoco_debug, int, 0644);
119 MODULE_PARM_DESC(orinoco_debug, "Debug level");
120 EXPORT_SYMBOL(orinoco_debug);
121 #endif
122
123 static int suppress_linkstatus; /* = 0 */
124 module_param(suppress_linkstatus, bool, 0644);
125 MODULE_PARM_DESC(suppress_linkstatus, "Don't log link status changes");
126 static int ignore_disconnect; /* = 0 */
127 module_param(ignore_disconnect, int, 0644);
128 MODULE_PARM_DESC(ignore_disconnect, "Don't report lost link to the network layer");
129
130 static int force_monitor; /* = 0 */
131 module_param(force_monitor, int, 0644);
132 MODULE_PARM_DESC(force_monitor, "Allow monitor mode for all firmware versions");
133
134 /********************************************************************/
135 /* Compile time configuration and compatibility stuff */
136 /********************************************************************/
137
138 /* We do this this way to avoid ifdefs in the actual code */
139 #ifdef WIRELESS_SPY
140 #define SPY_NUMBER(priv) (priv->spy_number)
141 #else
142 #define SPY_NUMBER(priv) 0
143 #endif /* WIRELESS_SPY */
144
145 /********************************************************************/
146 /* Internal constants */
147 /********************************************************************/
148
149 /* 802.2 LLC/SNAP header used for Ethernet encapsulation over 802.11 */
150 static const u8 encaps_hdr[] = {0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00};
151 #define ENCAPS_OVERHEAD (sizeof(encaps_hdr) + 2)
152
153 #define ORINOCO_MIN_MTU 256
154 #define ORINOCO_MAX_MTU (IEEE80211_DATA_LEN - ENCAPS_OVERHEAD)
155
156 #define SYMBOL_MAX_VER_LEN (14)
157 #define USER_BAP 0
158 #define IRQ_BAP 1
159 #define MAX_IRQLOOPS_PER_IRQ 10
160 #define MAX_IRQLOOPS_PER_JIFFY (20000/HZ) /* Based on a guestimate of
161 * how many events the
162 * device could
163 * legitimately generate */
164 #define SMALL_KEY_SIZE 5
165 #define LARGE_KEY_SIZE 13
166 #define TX_NICBUF_SIZE_BUG 1585 /* Bug in Symbol firmware */
167
168 #define DUMMY_FID 0xFFFF
169
170 /*#define MAX_MULTICAST(priv) (priv->firmware_type == FIRMWARE_TYPE_AGERE ? \
171 HERMES_MAX_MULTICAST : 0)*/
172 #define MAX_MULTICAST(priv) (HERMES_MAX_MULTICAST)
173
174 #define ORINOCO_INTEN (HERMES_EV_RX | HERMES_EV_ALLOC \
175 | HERMES_EV_TX | HERMES_EV_TXEXC \
176 | HERMES_EV_WTERR | HERMES_EV_INFO \
177 | HERMES_EV_INFDROP )
178
179 #define MAX_RID_LEN 1024
180
181 static const struct iw_handler_def orinoco_handler_def;
182 static struct ethtool_ops orinoco_ethtool_ops;
183
184 /********************************************************************/
185 /* Data tables */
186 /********************************************************************/
187
188 /* The frequency of each channel in MHz */
189 static const long channel_frequency[] = {
190 2412, 2417, 2422, 2427, 2432, 2437, 2442,
191 2447, 2452, 2457, 2462, 2467, 2472, 2484
192 };
193 #define NUM_CHANNELS ARRAY_SIZE(channel_frequency)
194
195 /* This tables gives the actual meanings of the bitrate IDs returned
196 * by the firmware. */
197 static struct {
198 int bitrate; /* in 100s of kilobits */
199 int automatic;
200 u16 agere_txratectrl;
201 u16 intersil_txratectrl;
202 } bitrate_table[] = {
203 {110, 1, 3, 15}, /* Entry 0 is the default */
204 {10, 0, 1, 1},
205 {10, 1, 1, 1},
206 {20, 0, 2, 2},
207 {20, 1, 6, 3},
208 {55, 0, 4, 4},
209 {55, 1, 7, 7},
210 {110, 0, 5, 8},
211 };
212 #define BITRATE_TABLE_SIZE ARRAY_SIZE(bitrate_table)
213
214 /********************************************************************/
215 /* Data types */
216 /********************************************************************/
217
218 /* Used in Event handling.
219 * We avoid nested structres as they break on ARM -- Moustafa */
220 struct hermes_tx_descriptor_802_11 {
221 /* hermes_tx_descriptor */
222 u16 status;
223 u16 reserved1;
224 u16 reserved2;
225 u32 sw_support;
226 u8 retry_count;
227 u8 tx_rate;
228 u16 tx_control;
229
230 /* ieee802_11_hdr */
231 u16 frame_ctl;
232 u16 duration_id;
233 u8 addr1[ETH_ALEN];
234 u8 addr2[ETH_ALEN];
235 u8 addr3[ETH_ALEN];
236 u16 seq_ctl;
237 u8 addr4[ETH_ALEN];
238 u16 data_len;
239
240 /* ethhdr */
241 unsigned char h_dest[ETH_ALEN]; /* destination eth addr */
242 unsigned char h_source[ETH_ALEN]; /* source ether addr */
243 unsigned short h_proto; /* packet type ID field */
244
245 /* p8022_hdr */
246 u8 dsap;
247 u8 ssap;
248 u8 ctrl;
249 u8 oui[3];
250
251 u16 ethertype;
252 } __attribute__ ((packed));
253
254 /* Rx frame header except compatibility 802.3 header */
255 struct hermes_rx_descriptor {
256 /* Control */
257 u16 status;
258 u32 time;
259 u8 silence;
260 u8 signal;
261 u8 rate;
262 u8 rxflow;
263 u32 reserved;
264
265 /* 802.11 header */
266 u16 frame_ctl;
267 u16 duration_id;
268 u8 addr1[ETH_ALEN];
269 u8 addr2[ETH_ALEN];
270 u8 addr3[ETH_ALEN];
271 u16 seq_ctl;
272 u8 addr4[ETH_ALEN];
273
274 /* Data length */
275 u16 data_len;
276 } __attribute__ ((packed));
277
278 /********************************************************************/
279 /* Function prototypes */
280 /********************************************************************/
281
282 static int __orinoco_program_rids(struct net_device *dev);
283 static void __orinoco_set_multicast_list(struct net_device *dev);
284
285 /********************************************************************/
286 /* Internal helper functions */
287 /********************************************************************/
288
289 static inline void set_port_type(struct orinoco_private *priv)
290 {
291 switch (priv->iw_mode) {
292 case IW_MODE_INFRA:
293 priv->port_type = 1;
294 priv->createibss = 0;
295 break;
296 case IW_MODE_ADHOC:
297 if (priv->prefer_port3) {
298 priv->port_type = 3;
299 priv->createibss = 0;
300 } else {
301 priv->port_type = priv->ibss_port;
302 priv->createibss = 1;
303 }
304 break;
305 case IW_MODE_MONITOR:
306 priv->port_type = 3;
307 priv->createibss = 0;
308 break;
309 default:
310 printk(KERN_ERR "%s: Invalid priv->iw_mode in set_port_type()\n",
311 priv->ndev->name);
312 }
313 }
314
315 /********************************************************************/
316 /* Device methods */
317 /********************************************************************/
318
319 static int orinoco_open(struct net_device *dev)
320 {
321 struct orinoco_private *priv = netdev_priv(dev);
322 unsigned long flags;
323 int err;
324
325 if (orinoco_lock(priv, &flags) != 0)
326 return -EBUSY;
327
328 err = __orinoco_up(dev);
329
330 if (! err)
331 priv->open = 1;
332
333 orinoco_unlock(priv, &flags);
334
335 return err;
336 }
337
338 static int orinoco_stop(struct net_device *dev)
339 {
340 struct orinoco_private *priv = netdev_priv(dev);
341 int err = 0;
342
343 /* We mustn't use orinoco_lock() here, because we need to be
344 able to close the interface even if hw_unavailable is set
345 (e.g. as we're released after a PC Card removal) */
346 spin_lock_irq(&priv->lock);
347
348 priv->open = 0;
349
350 err = __orinoco_down(dev);
351
352 spin_unlock_irq(&priv->lock);
353
354 return err;
355 }
356
357 static struct net_device_stats *orinoco_get_stats(struct net_device *dev)
358 {
359 struct orinoco_private *priv = netdev_priv(dev);
360
361 return &priv->stats;
362 }
363
364 static struct iw_statistics *orinoco_get_wireless_stats(struct net_device *dev)
365 {
366 struct orinoco_private *priv = netdev_priv(dev);
367 hermes_t *hw = &priv->hw;
368 struct iw_statistics *wstats = &priv->wstats;
369 int err;
370 unsigned long flags;
371
372 if (! netif_device_present(dev)) {
373 printk(KERN_WARNING "%s: get_wireless_stats() called while device not present\n",
374 dev->name);
375 return NULL; /* FIXME: Can we do better than this? */
376 }
377
378 /* If busy, return the old stats. Returning NULL may cause
379 * the interface to disappear from /proc/net/wireless */
380 if (orinoco_lock(priv, &flags) != 0)
381 return wstats;
382
383 /* We can't really wait for the tallies inquiry command to
384 * complete, so we just use the previous results and trigger
385 * a new tallies inquiry command for next time - Jean II */
386 /* FIXME: Really we should wait for the inquiry to come back -
387 * as it is the stats we give don't make a whole lot of sense.
388 * Unfortunately, it's not clear how to do that within the
389 * wireless extensions framework: I think we're in user
390 * context, but a lock seems to be held by the time we get in
391 * here so we're not safe to sleep here. */
392 hermes_inquire(hw, HERMES_INQ_TALLIES);
393
394 if (priv->iw_mode == IW_MODE_ADHOC) {
395 memset(&wstats->qual, 0, sizeof(wstats->qual));
396 /* If a spy address is defined, we report stats of the
397 * first spy address - Jean II */
398 if (SPY_NUMBER(priv)) {
399 wstats->qual.qual = priv->spy_stat[0].qual;
400 wstats->qual.level = priv->spy_stat[0].level;
401 wstats->qual.noise = priv->spy_stat[0].noise;
402 wstats->qual.updated = priv->spy_stat[0].updated;
403 }
404 } else {
405 struct {
406 u16 qual, signal, noise;
407 } __attribute__ ((packed)) cq;
408
409 err = HERMES_READ_RECORD(hw, USER_BAP,
410 HERMES_RID_COMMSQUALITY, &cq);
411
412 if (!err) {
413 wstats->qual.qual = (int)le16_to_cpu(cq.qual);
414 wstats->qual.level = (int)le16_to_cpu(cq.signal) - 0x95;
415 wstats->qual.noise = (int)le16_to_cpu(cq.noise) - 0x95;
416 wstats->qual.updated = 7;
417 }
418 }
419
420 orinoco_unlock(priv, &flags);
421 return wstats;
422 }
423
424 static void orinoco_set_multicast_list(struct net_device *dev)
425 {
426 struct orinoco_private *priv = netdev_priv(dev);
427 unsigned long flags;
428
429 if (orinoco_lock(priv, &flags) != 0) {
430 printk(KERN_DEBUG "%s: orinoco_set_multicast_list() "
431 "called when hw_unavailable\n", dev->name);
432 return;
433 }
434
435 __orinoco_set_multicast_list(dev);
436 orinoco_unlock(priv, &flags);
437 }
438
439 static int orinoco_change_mtu(struct net_device *dev, int new_mtu)
440 {
441 struct orinoco_private *priv = netdev_priv(dev);
442
443 if ( (new_mtu < ORINOCO_MIN_MTU) || (new_mtu > ORINOCO_MAX_MTU) )
444 return -EINVAL;
445
446 if ( (new_mtu + ENCAPS_OVERHEAD + IEEE80211_HLEN) >
447 (priv->nicbuf_size - ETH_HLEN) )
448 return -EINVAL;
449
450 dev->mtu = new_mtu;
451
452 return 0;
453 }
454
455 /********************************************************************/
456 /* Tx path */
457 /********************************************************************/
458
459 static int orinoco_xmit(struct sk_buff *skb, struct net_device *dev)
460 {
461 struct orinoco_private *priv = netdev_priv(dev);
462 struct net_device_stats *stats = &priv->stats;
463 hermes_t *hw = &priv->hw;
464 int err = 0;
465 u16 txfid = priv->txfid;
466 char *p;
467 struct ethhdr *eh;
468 int len, data_len, data_off;
469 struct hermes_tx_descriptor desc;
470 unsigned long flags;
471
472 TRACE_ENTER(dev->name);
473
474 if (! netif_running(dev)) {
475 printk(KERN_ERR "%s: Tx on stopped device!\n",
476 dev->name);
477 TRACE_EXIT(dev->name);
478 return 1;
479 }
480
481 if (netif_queue_stopped(dev)) {
482 printk(KERN_DEBUG "%s: Tx while transmitter busy!\n",
483 dev->name);
484 TRACE_EXIT(dev->name);
485 return 1;
486 }
487
488 if (orinoco_lock(priv, &flags) != 0) {
489 printk(KERN_ERR "%s: orinoco_xmit() called while hw_unavailable\n",
490 dev->name);
491 TRACE_EXIT(dev->name);
492 return 1;
493 }
494
495 if (! netif_carrier_ok(dev) || (priv->iw_mode == IW_MODE_MONITOR)) {
496 /* Oops, the firmware hasn't established a connection,
497 silently drop the packet (this seems to be the
498 safest approach). */
499 stats->tx_errors++;
500 orinoco_unlock(priv, &flags);
501 dev_kfree_skb(skb);
502 TRACE_EXIT(dev->name);
503 return 0;
504 }
505
506 /* Length of the packet body */
507 /* FIXME: what if the skb is smaller than this? */
508 len = max_t(int,skb->len - ETH_HLEN, ETH_ZLEN - ETH_HLEN);
509
510 eh = (struct ethhdr *)skb->data;
511
512 memset(&desc, 0, sizeof(desc));
513 desc.tx_control = cpu_to_le16(HERMES_TXCTRL_TX_OK | HERMES_TXCTRL_TX_EX);
514 err = hermes_bap_pwrite(hw, USER_BAP, &desc, sizeof(desc), txfid, 0);
515 if (err) {
516 if (net_ratelimit())
517 printk(KERN_ERR "%s: Error %d writing Tx descriptor "
518 "to BAP\n", dev->name, err);
519 stats->tx_errors++;
520 goto fail;
521 }
522
523 /* Clear the 802.11 header and data length fields - some
524 * firmwares (e.g. Lucent/Agere 8.xx) appear to get confused
525 * if this isn't done. */
526 hermes_clear_words(hw, HERMES_DATA0,
527 HERMES_802_3_OFFSET - HERMES_802_11_OFFSET);
528
529 /* Encapsulate Ethernet-II frames */
530 if (ntohs(eh->h_proto) > ETH_DATA_LEN) { /* Ethernet-II frame */
531 struct header_struct hdr;
532 data_len = len;
533 data_off = HERMES_802_3_OFFSET + sizeof(hdr);
534 p = skb->data + ETH_HLEN;
535
536 /* 802.3 header */
537 memcpy(hdr.dest, eh->h_dest, ETH_ALEN);
538 memcpy(hdr.src, eh->h_source, ETH_ALEN);
539 hdr.len = htons(data_len + ENCAPS_OVERHEAD);
540
541 /* 802.2 header */
542 memcpy(&hdr.dsap, &encaps_hdr, sizeof(encaps_hdr));
543
544 hdr.ethertype = eh->h_proto;
545 err = hermes_bap_pwrite(hw, USER_BAP, &hdr, sizeof(hdr),
546 txfid, HERMES_802_3_OFFSET);
547 if (err) {
548 if (net_ratelimit())
549 printk(KERN_ERR "%s: Error %d writing packet "
550 "header to BAP\n", dev->name, err);
551 stats->tx_errors++;
552 goto fail;
553 }
554 } else { /* IEEE 802.3 frame */
555 data_len = len + ETH_HLEN;
556 data_off = HERMES_802_3_OFFSET;
557 p = skb->data;
558 }
559
560 /* Round up for odd length packets */
561 err = hermes_bap_pwrite(hw, USER_BAP, p, ALIGN(data_len, 2),
562 txfid, data_off);
563 if (err) {
564 printk(KERN_ERR "%s: Error %d writing packet to BAP\n",
565 dev->name, err);
566 stats->tx_errors++;
567 goto fail;
568 }
569
570 /* Finally, we actually initiate the send */
571 netif_stop_queue(dev);
572
573 err = hermes_docmd_wait(hw, HERMES_CMD_TX | HERMES_CMD_RECL,
574 txfid, NULL);
575 if (err) {
576 netif_start_queue(dev);
577 printk(KERN_ERR "%s: Error %d transmitting packet\n",
578 dev->name, err);
579 stats->tx_errors++;
580 goto fail;
581 }
582
583 dev->trans_start = jiffies;
584 stats->tx_bytes += data_off + data_len;
585
586 orinoco_unlock(priv, &flags);
587
588 dev_kfree_skb(skb);
589
590 TRACE_EXIT(dev->name);
591
592 return 0;
593 fail:
594 TRACE_EXIT(dev->name);
595
596 orinoco_unlock(priv, &flags);
597 return err;
598 }
599
600 static void __orinoco_ev_alloc(struct net_device *dev, hermes_t *hw)
601 {
602 struct orinoco_private *priv = netdev_priv(dev);
603 u16 fid = hermes_read_regn(hw, ALLOCFID);
604
605 if (fid != priv->txfid) {
606 if (fid != DUMMY_FID)
607 printk(KERN_WARNING "%s: Allocate event on unexpected fid (%04X)\n",
608 dev->name, fid);
609 return;
610 }
611
612 hermes_write_regn(hw, ALLOCFID, DUMMY_FID);
613 }
614
615 static void __orinoco_ev_tx(struct net_device *dev, hermes_t *hw)
616 {
617 struct orinoco_private *priv = netdev_priv(dev);
618 struct net_device_stats *stats = &priv->stats;
619
620 stats->tx_packets++;
621
622 netif_wake_queue(dev);
623
624 hermes_write_regn(hw, TXCOMPLFID, DUMMY_FID);
625 }
626
627 static void __orinoco_ev_txexc(struct net_device *dev, hermes_t *hw)
628 {
629 struct orinoco_private *priv = netdev_priv(dev);
630 struct net_device_stats *stats = &priv->stats;
631 u16 fid = hermes_read_regn(hw, TXCOMPLFID);
632 struct hermes_tx_descriptor_802_11 hdr;
633 int err = 0;
634
635 if (fid == DUMMY_FID)
636 return; /* Nothing's really happened */
637
638 /* Read the frame header */
639 err = hermes_bap_pread(hw, IRQ_BAP, &hdr,
640 sizeof(struct hermes_tx_descriptor) +
641 sizeof(struct ieee80211_hdr),
642 fid, 0);
643
644 hermes_write_regn(hw, TXCOMPLFID, DUMMY_FID);
645 stats->tx_errors++;
646
647 if (err) {
648 printk(KERN_WARNING "%s: Unable to read descriptor on Tx error "
649 "(FID=%04X error %d)\n",
650 dev->name, fid, err);
651 return;
652 }
653
654 DEBUG(1, "%s: Tx error, err %d (FID=%04X)\n", dev->name,
655 err, fid);
656
657 /* We produce a TXDROP event only for retry or lifetime
658 * exceeded, because that's the only status that really mean
659 * that this particular node went away.
660 * Other errors means that *we* screwed up. - Jean II */
661 hdr.status = le16_to_cpu(hdr.status);
662 if (hdr.status & (HERMES_TXSTAT_RETRYERR | HERMES_TXSTAT_AGEDERR)) {
663 union iwreq_data wrqu;
664
665 /* Copy 802.11 dest address.
666 * We use the 802.11 header because the frame may
667 * not be 802.3 or may be mangled...
668 * In Ad-Hoc mode, it will be the node address.
669 * In managed mode, it will be most likely the AP addr
670 * User space will figure out how to convert it to
671 * whatever it needs (IP address or else).
672 * - Jean II */
673 memcpy(wrqu.addr.sa_data, hdr.addr1, ETH_ALEN);
674 wrqu.addr.sa_family = ARPHRD_ETHER;
675
676 /* Send event to user space */
677 wireless_send_event(dev, IWEVTXDROP, &wrqu, NULL);
678 }
679
680 netif_wake_queue(dev);
681 }
682
683 static void orinoco_tx_timeout(struct net_device *dev)
684 {
685 struct orinoco_private *priv = netdev_priv(dev);
686 struct net_device_stats *stats = &priv->stats;
687 struct hermes *hw = &priv->hw;
688
689 printk(KERN_WARNING "%s: Tx timeout! "
690 "ALLOCFID=%04x, TXCOMPLFID=%04x, EVSTAT=%04x\n",
691 dev->name, hermes_read_regn(hw, ALLOCFID),
692 hermes_read_regn(hw, TXCOMPLFID), hermes_read_regn(hw, EVSTAT));
693
694 stats->tx_errors++;
695
696 schedule_work(&priv->reset_work);
697 }
698
699 /********************************************************************/
700 /* Rx path (data frames) */
701 /********************************************************************/
702
703 /* Does the frame have a SNAP header indicating it should be
704 * de-encapsulated to Ethernet-II? */
705 static inline int is_ethersnap(void *_hdr)
706 {
707 u8 *hdr = _hdr;
708
709 /* We de-encapsulate all packets which, a) have SNAP headers
710 * (i.e. SSAP=DSAP=0xaa and CTRL=0x3 in the 802.2 LLC header
711 * and where b) the OUI of the SNAP header is 00:00:00 or
712 * 00:00:f8 - we need both because different APs appear to use
713 * different OUIs for some reason */
714 return (memcmp(hdr, &encaps_hdr, 5) == 0)
715 && ( (hdr[5] == 0x00) || (hdr[5] == 0xf8) );
716 }
717
718 static inline void orinoco_spy_gather(struct net_device *dev, u_char *mac,
719 int level, int noise)
720 {
721 struct orinoco_private *priv = netdev_priv(dev);
722 int i;
723
724 /* Gather wireless spy statistics: for each packet, compare the
725 * source address with out list, and if match, get the stats... */
726 for (i = 0; i < priv->spy_number; i++)
727 if (!memcmp(mac, priv->spy_address[i], ETH_ALEN)) {
728 priv->spy_stat[i].level = level - 0x95;
729 priv->spy_stat[i].noise = noise - 0x95;
730 priv->spy_stat[i].qual = (level > noise) ? (level - noise) : 0;
731 priv->spy_stat[i].updated = 7;
732 }
733 }
734
735 static void orinoco_stat_gather(struct net_device *dev,
736 struct sk_buff *skb,
737 struct hermes_rx_descriptor *desc)
738 {
739 struct orinoco_private *priv = netdev_priv(dev);
740
741 /* Using spy support with lots of Rx packets, like in an
742 * infrastructure (AP), will really slow down everything, because
743 * the MAC address must be compared to each entry of the spy list.
744 * If the user really asks for it (set some address in the
745 * spy list), we do it, but he will pay the price.
746 * Note that to get here, you need both WIRELESS_SPY
747 * compiled in AND some addresses in the list !!!
748 */
749 /* Note : gcc will optimise the whole section away if
750 * WIRELESS_SPY is not defined... - Jean II */
751 if (SPY_NUMBER(priv)) {
752 orinoco_spy_gather(dev, skb->mac.raw + ETH_ALEN,
753 desc->signal, desc->silence);
754 }
755 }
756
757 /*
758 * orinoco_rx_monitor - handle received monitor frames.
759 *
760 * Arguments:
761 * dev network device
762 * rxfid received FID
763 * desc rx descriptor of the frame
764 *
765 * Call context: interrupt
766 */
767 static void orinoco_rx_monitor(struct net_device *dev, u16 rxfid,
768 struct hermes_rx_descriptor *desc)
769 {
770 u32 hdrlen = 30; /* return full header by default */
771 u32 datalen = 0;
772 u16 fc;
773 int err;
774 int len;
775 struct sk_buff *skb;
776 struct orinoco_private *priv = netdev_priv(dev);
777 struct net_device_stats *stats = &priv->stats;
778 hermes_t *hw = &priv->hw;
779
780 len = le16_to_cpu(desc->data_len);
781
782 /* Determine the size of the header and the data */
783 fc = le16_to_cpu(desc->frame_ctl);
784 switch (fc & IEEE80211_FCTL_FTYPE) {
785 case IEEE80211_FTYPE_DATA:
786 if ((fc & IEEE80211_FCTL_TODS)
787 && (fc & IEEE80211_FCTL_FROMDS))
788 hdrlen = 30;
789 else
790 hdrlen = 24;
791 datalen = len;
792 break;
793 case IEEE80211_FTYPE_MGMT:
794 hdrlen = 24;
795 datalen = len;
796 break;
797 case IEEE80211_FTYPE_CTL:
798 switch (fc & IEEE80211_FCTL_STYPE) {
799 case IEEE80211_STYPE_PSPOLL:
800 case IEEE80211_STYPE_RTS:
801 case IEEE80211_STYPE_CFEND:
802 case IEEE80211_STYPE_CFENDACK:
803 hdrlen = 16;
804 break;
805 case IEEE80211_STYPE_CTS:
806 case IEEE80211_STYPE_ACK:
807 hdrlen = 10;
808 break;
809 }
810 break;
811 default:
812 /* Unknown frame type */
813 break;
814 }
815
816 /* sanity check the length */
817 if (datalen > IEEE80211_DATA_LEN + 12) {
818 printk(KERN_DEBUG "%s: oversized monitor frame, "
819 "data length = %d\n", dev->name, datalen);
820 err = -EIO;
821 stats->rx_length_errors++;
822 goto update_stats;
823 }
824
825 skb = dev_alloc_skb(hdrlen + datalen);
826 if (!skb) {
827 printk(KERN_WARNING "%s: Cannot allocate skb for monitor frame\n",
828 dev->name);
829 err = -ENOMEM;
830 goto drop;
831 }
832
833 /* Copy the 802.11 header to the skb */
834 memcpy(skb_put(skb, hdrlen), &(desc->frame_ctl), hdrlen);
835 skb->mac.raw = skb->data;
836
837 /* If any, copy the data from the card to the skb */
838 if (datalen > 0) {
839 err = hermes_bap_pread(hw, IRQ_BAP, skb_put(skb, datalen),
840 ALIGN(datalen, 2), rxfid,
841 HERMES_802_2_OFFSET);
842 if (err) {
843 printk(KERN_ERR "%s: error %d reading monitor frame\n",
844 dev->name, err);
845 goto drop;
846 }
847 }
848
849 skb->dev = dev;
850 skb->ip_summed = CHECKSUM_NONE;
851 skb->pkt_type = PACKET_OTHERHOST;
852 skb->protocol = __constant_htons(ETH_P_802_2);
853
854 dev->last_rx = jiffies;
855 stats->rx_packets++;
856 stats->rx_bytes += skb->len;
857
858 netif_rx(skb);
859 return;
860
861 drop:
862 dev_kfree_skb_irq(skb);
863 update_stats:
864 stats->rx_errors++;
865 stats->rx_dropped++;
866 }
867
868 static void __orinoco_ev_rx(struct net_device *dev, hermes_t *hw)
869 {
870 struct orinoco_private *priv = netdev_priv(dev);
871 struct net_device_stats *stats = &priv->stats;
872 struct iw_statistics *wstats = &priv->wstats;
873 struct sk_buff *skb = NULL;
874 u16 rxfid, status, fc;
875 int length;
876 struct hermes_rx_descriptor desc;
877 struct ethhdr *hdr;
878 int err;
879
880 rxfid = hermes_read_regn(hw, RXFID);
881
882 err = hermes_bap_pread(hw, IRQ_BAP, &desc, sizeof(desc),
883 rxfid, 0);
884 if (err) {
885 printk(KERN_ERR "%s: error %d reading Rx descriptor. "
886 "Frame dropped.\n", dev->name, err);
887 goto update_stats;
888 }
889
890 status = le16_to_cpu(desc.status);
891
892 if (status & HERMES_RXSTAT_BADCRC) {
893 DEBUG(1, "%s: Bad CRC on Rx. Frame dropped.\n",
894 dev->name);
895 stats->rx_crc_errors++;
896 goto update_stats;
897 }
898
899 /* Handle frames in monitor mode */
900 if (priv->iw_mode == IW_MODE_MONITOR) {
901 orinoco_rx_monitor(dev, rxfid, &desc);
902 return;
903 }
904
905 if (status & HERMES_RXSTAT_UNDECRYPTABLE) {
906 DEBUG(1, "%s: Undecryptable frame on Rx. Frame dropped.\n",
907 dev->name);
908 wstats->discard.code++;
909 goto update_stats;
910 }
911
912 length = le16_to_cpu(desc.data_len);
913 fc = le16_to_cpu(desc.frame_ctl);
914
915 /* Sanity checks */
916 if (length < 3) { /* No for even an 802.2 LLC header */
917 /* At least on Symbol firmware with PCF we get quite a
918 lot of these legitimately - Poll frames with no
919 data. */
920 return;
921 }
922 if (length > IEEE80211_DATA_LEN) {
923 printk(KERN_WARNING "%s: Oversized frame received (%d bytes)\n",
924 dev->name, length);
925 stats->rx_length_errors++;
926 goto update_stats;
927 }
928
929 /* We need space for the packet data itself, plus an ethernet
930 header, plus 2 bytes so we can align the IP header on a
931 32bit boundary, plus 1 byte so we can read in odd length
932 packets from the card, which has an IO granularity of 16
933 bits */
934 skb = dev_alloc_skb(length+ETH_HLEN+2+1);
935 if (!skb) {
936 printk(KERN_WARNING "%s: Can't allocate skb for Rx\n",
937 dev->name);
938 goto update_stats;
939 }
940
941 /* We'll prepend the header, so reserve space for it. The worst
942 case is no decapsulation, when 802.3 header is prepended and
943 nothing is removed. 2 is for aligning the IP header. */
944 skb_reserve(skb, ETH_HLEN + 2);
945
946 err = hermes_bap_pread(hw, IRQ_BAP, skb_put(skb, length),
947 ALIGN(length, 2), rxfid,
948 HERMES_802_2_OFFSET);
949 if (err) {
950 printk(KERN_ERR "%s: error %d reading frame. "
951 "Frame dropped.\n", dev->name, err);
952 goto drop;
953 }
954
955 /* Handle decapsulation
956 * In most cases, the firmware tell us about SNAP frames.
957 * For some reason, the SNAP frames sent by LinkSys APs
958 * are not properly recognised by most firmwares.
959 * So, check ourselves */
960 if (length >= ENCAPS_OVERHEAD &&
961 (((status & HERMES_RXSTAT_MSGTYPE) == HERMES_RXSTAT_1042) ||
962 ((status & HERMES_RXSTAT_MSGTYPE) == HERMES_RXSTAT_TUNNEL) ||
963 is_ethersnap(skb->data))) {
964 /* These indicate a SNAP within 802.2 LLC within
965 802.11 frame which we'll need to de-encapsulate to
966 the original EthernetII frame. */
967 hdr = (struct ethhdr *)skb_push(skb, ETH_HLEN - ENCAPS_OVERHEAD);
968 } else {
969 /* 802.3 frame - prepend 802.3 header as is */
970 hdr = (struct ethhdr *)skb_push(skb, ETH_HLEN);
971 hdr->h_proto = htons(length);
972 }
973 memcpy(hdr->h_dest, desc.addr1, ETH_ALEN);
974 if (fc & IEEE80211_FCTL_FROMDS)
975 memcpy(hdr->h_source, desc.addr3, ETH_ALEN);
976 else
977 memcpy(hdr->h_source, desc.addr2, ETH_ALEN);
978
979 dev->last_rx = jiffies;
980 skb->dev = dev;
981 skb->protocol = eth_type_trans(skb, dev);
982 skb->ip_summed = CHECKSUM_NONE;
983 if (fc & IEEE80211_FCTL_TODS)
984 skb->pkt_type = PACKET_OTHERHOST;
985
986 /* Process the wireless stats if needed */
987 orinoco_stat_gather(dev, skb, &desc);
988
989 /* Pass the packet to the networking stack */
990 netif_rx(skb);
991 stats->rx_packets++;
992 stats->rx_bytes += length;
993
994 return;
995
996 drop:
997 dev_kfree_skb_irq(skb);
998 update_stats:
999 stats->rx_errors++;
1000 stats->rx_dropped++;
1001 }
1002
1003 /********************************************************************/
1004 /* Rx path (info frames) */
1005 /********************************************************************/
1006
1007 static void print_linkstatus(struct net_device *dev, u16 status)
1008 {
1009 char * s;
1010
1011 if (suppress_linkstatus)
1012 return;
1013
1014 switch (status) {
1015 case HERMES_LINKSTATUS_NOT_CONNECTED:
1016 s = "Not Connected";
1017 break;
1018 case HERMES_LINKSTATUS_CONNECTED:
1019 s = "Connected";
1020 break;
1021 case HERMES_LINKSTATUS_DISCONNECTED:
1022 s = "Disconnected";
1023 break;
1024 case HERMES_LINKSTATUS_AP_CHANGE:
1025 s = "AP Changed";
1026 break;
1027 case HERMES_LINKSTATUS_AP_OUT_OF_RANGE:
1028 s = "AP Out of Range";
1029 break;
1030 case HERMES_LINKSTATUS_AP_IN_RANGE:
1031 s = "AP In Range";
1032 break;
1033 case HERMES_LINKSTATUS_ASSOC_FAILED:
1034 s = "Association Failed";
1035 break;
1036 default:
1037 s = "UNKNOWN";
1038 }
1039
1040 printk(KERN_INFO "%s: New link status: %s (%04x)\n",
1041 dev->name, s, status);
1042 }
1043
1044 /* Search scan results for requested BSSID, join it if found */
1045 static void orinoco_join_ap(struct net_device *dev)
1046 {
1047 struct orinoco_private *priv = netdev_priv(dev);
1048 struct hermes *hw = &priv->hw;
1049 int err;
1050 unsigned long flags;
1051 struct join_req {
1052 u8 bssid[ETH_ALEN];
1053 u16 channel;
1054 } __attribute__ ((packed)) req;
1055 const int atom_len = offsetof(struct prism2_scan_apinfo, atim);
1056 struct prism2_scan_apinfo *atom;
1057 int offset = 4;
1058 u8 *buf;
1059 u16 len;
1060
1061 /* Allocate buffer for scan results */
1062 buf = kmalloc(MAX_SCAN_LEN, GFP_KERNEL);
1063 if (! buf)
1064 return;
1065
1066 if (orinoco_lock(priv, &flags) != 0)
1067 goto out;
1068
1069 /* Sanity checks in case user changed something in the meantime */
1070 if (! priv->bssid_fixed)
1071 goto out;
1072
1073 if (strlen(priv->desired_essid) == 0)
1074 goto out;
1075
1076 /* Read scan results from the firmware */
1077 err = hermes_read_ltv(hw, USER_BAP,
1078 HERMES_RID_SCANRESULTSTABLE,
1079 MAX_SCAN_LEN, &len, buf);
1080 if (err) {
1081 printk(KERN_ERR "%s: Cannot read scan results\n",
1082 dev->name);
1083 goto out;
1084 }
1085
1086 len = HERMES_RECLEN_TO_BYTES(len);
1087
1088 /* Go through the scan results looking for the channel of the AP
1089 * we were requested to join */
1090 for (; offset + atom_len <= len; offset += atom_len) {
1091 atom = (struct prism2_scan_apinfo *) (buf + offset);
1092 if (memcmp(&atom->bssid, priv->desired_bssid, ETH_ALEN) == 0)
1093 goto found;
1094 }
1095
1096 DEBUG(1, "%s: Requested AP not found in scan results\n",
1097 dev->name);
1098 goto out;
1099
1100 found:
1101 memcpy(req.bssid, priv->desired_bssid, ETH_ALEN);
1102 req.channel = atom->channel; /* both are little-endian */
1103 err = HERMES_WRITE_RECORD(hw, USER_BAP, HERMES_RID_CNFJOINREQUEST,
1104 &req);
1105 if (err)
1106 printk(KERN_ERR "%s: Error issuing join request\n", dev->name);
1107
1108 out:
1109 kfree(buf);
1110 orinoco_unlock(priv, &flags);
1111 }
1112
1113 /* Send new BSSID to userspace */
1114 static void orinoco_send_wevents(struct net_device *dev)
1115 {
1116 struct orinoco_private *priv = netdev_priv(dev);
1117 struct hermes *hw = &priv->hw;
1118 union iwreq_data wrqu;
1119 int err;
1120 unsigned long flags;
1121
1122 if (orinoco_lock(priv, &flags) != 0)
1123 return;
1124
1125 err = hermes_read_ltv(hw, IRQ_BAP, HERMES_RID_CURRENTBSSID,
1126 ETH_ALEN, NULL, wrqu.ap_addr.sa_data);
1127 if (err != 0)
1128 return;
1129
1130 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
1131
1132 /* Send event to user space */
1133 wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
1134 orinoco_unlock(priv, &flags);
1135 }
1136
1137 static void __orinoco_ev_info(struct net_device *dev, hermes_t *hw)
1138 {
1139 struct orinoco_private *priv = netdev_priv(dev);
1140 u16 infofid;
1141 struct {
1142 u16 len;
1143 u16 type;
1144 } __attribute__ ((packed)) info;
1145 int len, type;
1146 int err;
1147
1148 /* This is an answer to an INQUIRE command that we did earlier,
1149 * or an information "event" generated by the card
1150 * The controller return to us a pseudo frame containing
1151 * the information in question - Jean II */
1152 infofid = hermes_read_regn(hw, INFOFID);
1153
1154 /* Read the info frame header - don't try too hard */
1155 err = hermes_bap_pread(hw, IRQ_BAP, &info, sizeof(info),
1156 infofid, 0);
1157 if (err) {
1158 printk(KERN_ERR "%s: error %d reading info frame. "
1159 "Frame dropped.\n", dev->name, err);
1160 return;
1161 }
1162
1163 len = HERMES_RECLEN_TO_BYTES(le16_to_cpu(info.len));
1164 type = le16_to_cpu(info.type);
1165
1166 switch (type) {
1167 case HERMES_INQ_TALLIES: {
1168 struct hermes_tallies_frame tallies;
1169 struct iw_statistics *wstats = &priv->wstats;
1170
1171 if (len > sizeof(tallies)) {
1172 printk(KERN_WARNING "%s: Tallies frame too long (%d bytes)\n",
1173 dev->name, len);
1174 len = sizeof(tallies);
1175 }
1176
1177 err = hermes_bap_pread(hw, IRQ_BAP, &tallies, len,
1178 infofid, sizeof(info));
1179 if (err)
1180 break;
1181
1182 /* Increment our various counters */
1183 /* wstats->discard.nwid - no wrong BSSID stuff */
1184 wstats->discard.code +=
1185 le16_to_cpu(tallies.RxWEPUndecryptable);
1186 if (len == sizeof(tallies))
1187 wstats->discard.code +=
1188 le16_to_cpu(tallies.RxDiscards_WEPICVError) +
1189 le16_to_cpu(tallies.RxDiscards_WEPExcluded);
1190 wstats->discard.misc +=
1191 le16_to_cpu(tallies.TxDiscardsWrongSA);
1192 wstats->discard.fragment +=
1193 le16_to_cpu(tallies.RxMsgInBadMsgFragments);
1194 wstats->discard.retries +=
1195 le16_to_cpu(tallies.TxRetryLimitExceeded);
1196 /* wstats->miss.beacon - no match */
1197 }
1198 break;
1199 case HERMES_INQ_LINKSTATUS: {
1200 struct hermes_linkstatus linkstatus;
1201 u16 newstatus;
1202 int connected;
1203
1204 if (priv->iw_mode == IW_MODE_MONITOR)
1205 break;
1206
1207 if (len != sizeof(linkstatus)) {
1208 printk(KERN_WARNING "%s: Unexpected size for linkstatus frame (%d bytes)\n",
1209 dev->name, len);
1210 break;
1211 }
1212
1213 err = hermes_bap_pread(hw, IRQ_BAP, &linkstatus, len,
1214 infofid, sizeof(info));
1215 if (err)
1216 break;
1217 newstatus = le16_to_cpu(linkstatus.linkstatus);
1218
1219 /* Symbol firmware uses "out of range" to signal that
1220 * the hostscan frame can be requested. */
1221 if (newstatus == HERMES_LINKSTATUS_AP_OUT_OF_RANGE &&
1222 priv->firmware_type == FIRMWARE_TYPE_SYMBOL &&
1223 priv->has_hostscan && priv->scan_inprogress) {
1224 hermes_inquire(hw, HERMES_INQ_HOSTSCAN_SYMBOL);
1225 break;
1226 }
1227
1228 connected = (newstatus == HERMES_LINKSTATUS_CONNECTED)
1229 || (newstatus == HERMES_LINKSTATUS_AP_CHANGE)
1230 || (newstatus == HERMES_LINKSTATUS_AP_IN_RANGE);
1231
1232 if (connected)
1233 netif_carrier_on(dev);
1234 else if (!ignore_disconnect)
1235 netif_carrier_off(dev);
1236
1237 if (newstatus != priv->last_linkstatus) {
1238 priv->last_linkstatus = newstatus;
1239 print_linkstatus(dev, newstatus);
1240 /* The info frame contains only one word which is the
1241 * status (see hermes.h). The status is pretty boring
1242 * in itself, that's why we export the new BSSID...
1243 * Jean II */
1244 schedule_work(&priv->wevent_work);
1245 }
1246 }
1247 break;
1248 case HERMES_INQ_SCAN:
1249 if (!priv->scan_inprogress && priv->bssid_fixed &&
1250 priv->firmware_type == FIRMWARE_TYPE_INTERSIL) {
1251 schedule_work(&priv->join_work);
1252 break;
1253 }
1254 /* fall through */
1255 case HERMES_INQ_HOSTSCAN:
1256 case HERMES_INQ_HOSTSCAN_SYMBOL: {
1257 /* Result of a scanning. Contains information about
1258 * cells in the vicinity - Jean II */
1259 union iwreq_data wrqu;
1260 unsigned char *buf;
1261
1262 /* Sanity check */
1263 if (len > 4096) {
1264 printk(KERN_WARNING "%s: Scan results too large (%d bytes)\n",
1265 dev->name, len);
1266 break;
1267 }
1268
1269 /* We are a strict producer. If the previous scan results
1270 * have not been consumed, we just have to drop this
1271 * frame. We can't remove the previous results ourselves,
1272 * that would be *very* racy... Jean II */
1273 if (priv->scan_result != NULL) {
1274 printk(KERN_WARNING "%s: Previous scan results not consumed, dropping info frame.\n", dev->name);
1275 break;
1276 }
1277
1278 /* Allocate buffer for results */
1279 buf = kmalloc(len, GFP_ATOMIC);
1280 if (buf == NULL)
1281 /* No memory, so can't printk()... */
1282 break;
1283
1284 /* Read scan data */
1285 err = hermes_bap_pread(hw, IRQ_BAP, (void *) buf, len,
1286 infofid, sizeof(info));
1287 if (err)
1288 break;
1289
1290 #ifdef ORINOCO_DEBUG
1291 {
1292 int i;
1293 printk(KERN_DEBUG "Scan result [%02X", buf[0]);
1294 for(i = 1; i < (len * 2); i++)
1295 printk(":%02X", buf[i]);
1296 printk("]\n");
1297 }
1298 #endif /* ORINOCO_DEBUG */
1299
1300 /* Allow the clients to access the results */
1301 priv->scan_len = len;
1302 priv->scan_result = buf;
1303
1304 /* Send an empty event to user space.
1305 * We don't send the received data on the event because
1306 * it would require us to do complex transcoding, and
1307 * we want to minimise the work done in the irq handler
1308 * Use a request to extract the data - Jean II */
1309 wrqu.data.length = 0;
1310 wrqu.data.flags = 0;
1311 wireless_send_event(dev, SIOCGIWSCAN, &wrqu, NULL);
1312 }
1313 break;
1314 case HERMES_INQ_SEC_STAT_AGERE:
1315 /* Security status (Agere specific) */
1316 /* Ignore this frame for now */
1317 if (priv->firmware_type == FIRMWARE_TYPE_AGERE)
1318 break;
1319 /* fall through */
1320 default:
1321 printk(KERN_DEBUG "%s: Unknown information frame received: "
1322 "type 0x%04x, length %d\n", dev->name, type, len);
1323 /* We don't actually do anything about it */
1324 break;
1325 }
1326 }
1327
1328 static void __orinoco_ev_infdrop(struct net_device *dev, hermes_t *hw)
1329 {
1330 if (net_ratelimit())
1331 printk(KERN_DEBUG "%s: Information frame lost.\n", dev->name);
1332 }
1333
1334 /********************************************************************/
1335 /* Internal hardware control routines */
1336 /********************************************************************/
1337
1338 int __orinoco_up(struct net_device *dev)
1339 {
1340 struct orinoco_private *priv = netdev_priv(dev);
1341 struct hermes *hw = &priv->hw;
1342 int err;
1343
1344 netif_carrier_off(dev); /* just to make sure */
1345
1346 err = __orinoco_program_rids(dev);
1347 if (err) {
1348 printk(KERN_ERR "%s: Error %d configuring card\n",
1349 dev->name, err);
1350 return err;
1351 }
1352
1353 /* Fire things up again */
1354 hermes_set_irqmask(hw, ORINOCO_INTEN);
1355 err = hermes_enable_port(hw, 0);
1356 if (err) {
1357 printk(KERN_ERR "%s: Error %d enabling MAC port\n",
1358 dev->name, err);
1359 return err;
1360 }
1361
1362 netif_start_queue(dev);
1363
1364 return 0;
1365 }
1366
1367 int __orinoco_down(struct net_device *dev)
1368 {
1369 struct orinoco_private *priv = netdev_priv(dev);
1370 struct hermes *hw = &priv->hw;
1371 int err;
1372
1373 netif_stop_queue(dev);
1374
1375 if (! priv->hw_unavailable) {
1376 if (! priv->broken_disableport) {
1377 err = hermes_disable_port(hw, 0);
1378 if (err) {
1379 /* Some firmwares (e.g. Intersil 1.3.x) seem
1380 * to have problems disabling the port, oh
1381 * well, too bad. */
1382 printk(KERN_WARNING "%s: Error %d disabling MAC port\n",
1383 dev->name, err);
1384 priv->broken_disableport = 1;
1385 }
1386 }
1387 hermes_set_irqmask(hw, 0);
1388 hermes_write_regn(hw, EVACK, 0xffff);
1389 }
1390
1391 /* firmware will have to reassociate */
1392 netif_carrier_off(dev);
1393 priv->last_linkstatus = 0xffff;
1394
1395 return 0;
1396 }
1397
1398 int orinoco_reinit_firmware(struct net_device *dev)
1399 {
1400 struct orinoco_private *priv = netdev_priv(dev);
1401 struct hermes *hw = &priv->hw;
1402 int err;
1403
1404 err = hermes_init(hw);
1405 if (err)
1406 return err;
1407
1408 err = hermes_allocate(hw, priv->nicbuf_size, &priv->txfid);
1409 if (err == -EIO && priv->nicbuf_size > TX_NICBUF_SIZE_BUG) {
1410 /* Try workaround for old Symbol firmware bug */
1411 printk(KERN_WARNING "%s: firmware ALLOC bug detected "
1412 "(old Symbol firmware?). Trying to work around... ",
1413 dev->name);
1414
1415 priv->nicbuf_size = TX_NICBUF_SIZE_BUG;
1416 err = hermes_allocate(hw, priv->nicbuf_size, &priv->txfid);
1417 if (err)
1418 printk("failed!\n");
1419 else
1420 printk("ok.\n");
1421 }
1422
1423 return err;
1424 }
1425
1426 static int __orinoco_hw_set_bitrate(struct orinoco_private *priv)
1427 {
1428 hermes_t *hw = &priv->hw;
1429 int err = 0;
1430
1431 if (priv->bitratemode >= BITRATE_TABLE_SIZE) {
1432 printk(KERN_ERR "%s: BUG: Invalid bitrate mode %d\n",
1433 priv->ndev->name, priv->bitratemode);
1434 return -EINVAL;
1435 }
1436
1437 switch (priv->firmware_type) {
1438 case FIRMWARE_TYPE_AGERE:
1439 err = hermes_write_wordrec(hw, USER_BAP,
1440 HERMES_RID_CNFTXRATECONTROL,
1441 bitrate_table[priv->bitratemode].agere_txratectrl);
1442 break;
1443 case FIRMWARE_TYPE_INTERSIL:
1444 case FIRMWARE_TYPE_SYMBOL:
1445 err = hermes_write_wordrec(hw, USER_BAP,
1446 HERMES_RID_CNFTXRATECONTROL,
1447 bitrate_table[priv->bitratemode].intersil_txratectrl);
1448 break;
1449 default:
1450 BUG();
1451 }
1452
1453 return err;
1454 }
1455
1456 /* Set fixed AP address */
1457 static int __orinoco_hw_set_wap(struct orinoco_private *priv)
1458 {
1459 int roaming_flag;
1460 int err = 0;
1461 hermes_t *hw = &priv->hw;
1462
1463 switch (priv->firmware_type) {
1464 case FIRMWARE_TYPE_AGERE:
1465 /* not supported */
1466 break;
1467 case FIRMWARE_TYPE_INTERSIL:
1468 if (priv->bssid_fixed)
1469 roaming_flag = 2;
1470 else
1471 roaming_flag = 1;
1472
1473 err = hermes_write_wordrec(hw, USER_BAP,
1474 HERMES_RID_CNFROAMINGMODE,
1475 roaming_flag);
1476 break;
1477 case FIRMWARE_TYPE_SYMBOL:
1478 err = HERMES_WRITE_RECORD(hw, USER_BAP,
1479 HERMES_RID_CNFMANDATORYBSSID_SYMBOL,
1480 &priv->desired_bssid);
1481 break;
1482 }
1483 return err;
1484 }
1485
1486 /* Change the WEP keys and/or the current keys. Can be called
1487 * either from __orinoco_hw_setup_wep() or directly from
1488 * orinoco_ioctl_setiwencode(). In the later case the association
1489 * with the AP is not broken (if the firmware can handle it),
1490 * which is needed for 802.1x implementations. */
1491 static int __orinoco_hw_setup_wepkeys(struct orinoco_private *priv)
1492 {
1493 hermes_t *hw = &priv->hw;
1494 int err = 0;
1495
1496 switch (priv->firmware_type) {
1497 case FIRMWARE_TYPE_AGERE:
1498 err = HERMES_WRITE_RECORD(hw, USER_BAP,
1499 HERMES_RID_CNFWEPKEYS_AGERE,
1500 &priv->keys);
1501 if (err)
1502 return err;
1503 err = hermes_write_wordrec(hw, USER_BAP,
1504 HERMES_RID_CNFTXKEY_AGERE,
1505 priv->tx_key);
1506 if (err)
1507 return err;
1508 break;
1509 case FIRMWARE_TYPE_INTERSIL:
1510 case FIRMWARE_TYPE_SYMBOL:
1511 {
1512 int keylen;
1513 int i;
1514
1515 /* Force uniform key length to work around firmware bugs */
1516 keylen = le16_to_cpu(priv->keys[priv->tx_key].len);
1517
1518 if (keylen > LARGE_KEY_SIZE) {
1519 printk(KERN_ERR "%s: BUG: Key %d has oversize length %d.\n",
1520 priv->ndev->name, priv->tx_key, keylen);
1521 return -E2BIG;
1522 }
1523
1524 /* Write all 4 keys */
1525 for(i = 0; i < ORINOCO_MAX_KEYS; i++) {
1526 err = hermes_write_ltv(hw, USER_BAP,
1527 HERMES_RID_CNFDEFAULTKEY0 + i,
1528 HERMES_BYTES_TO_RECLEN(keylen),
1529 priv->keys[i].data);
1530 if (err)
1531 return err;
1532 }
1533
1534 /* Write the index of the key used in transmission */
1535 err = hermes_write_wordrec(hw, USER_BAP,
1536 HERMES_RID_CNFWEPDEFAULTKEYID,
1537 priv->tx_key);
1538 if (err)
1539 return err;
1540 }
1541 break;
1542 }
1543
1544 return 0;
1545 }
1546
1547 static int __orinoco_hw_setup_wep(struct orinoco_private *priv)
1548 {
1549 hermes_t *hw = &priv->hw;
1550 int err = 0;
1551 int master_wep_flag;
1552 int auth_flag;
1553
1554 if (priv->wep_on)
1555 __orinoco_hw_setup_wepkeys(priv);
1556
1557 if (priv->wep_restrict)
1558 auth_flag = HERMES_AUTH_SHARED_KEY;
1559 else
1560 auth_flag = HERMES_AUTH_OPEN;
1561
1562 switch (priv->firmware_type) {
1563 case FIRMWARE_TYPE_AGERE: /* Agere style WEP */
1564 if (priv->wep_on) {
1565 /* Enable the shared-key authentication. */
1566 err = hermes_write_wordrec(hw, USER_BAP,
1567 HERMES_RID_CNFAUTHENTICATION_AGERE,
1568 auth_flag);
1569 }
1570 err = hermes_write_wordrec(hw, USER_BAP,
1571 HERMES_RID_CNFWEPENABLED_AGERE,
1572 priv->wep_on);
1573 if (err)
1574 return err;
1575 break;
1576
1577 case FIRMWARE_TYPE_INTERSIL: /* Intersil style WEP */
1578 case FIRMWARE_TYPE_SYMBOL: /* Symbol style WEP */
1579 if (priv->wep_on) {
1580 if (priv->wep_restrict ||
1581 (priv->firmware_type == FIRMWARE_TYPE_SYMBOL))
1582 master_wep_flag = HERMES_WEP_PRIVACY_INVOKED |
1583 HERMES_WEP_EXCL_UNENCRYPTED;
1584 else
1585 master_wep_flag = HERMES_WEP_PRIVACY_INVOKED;
1586
1587 err = hermes_write_wordrec(hw, USER_BAP,
1588 HERMES_RID_CNFAUTHENTICATION,
1589 auth_flag);
1590 if (err)
1591 return err;
1592 } else
1593 master_wep_flag = 0;
1594
1595 if (priv->iw_mode == IW_MODE_MONITOR)
1596 master_wep_flag |= HERMES_WEP_HOST_DECRYPT;
1597
1598 /* Master WEP setting : on/off */
1599 err = hermes_write_wordrec(hw, USER_BAP,
1600 HERMES_RID_CNFWEPFLAGS_INTERSIL,
1601 master_wep_flag);
1602 if (err)
1603 return err;
1604
1605 break;
1606 }
1607
1608 return 0;
1609 }
1610
1611 static int __orinoco_program_rids(struct net_device *dev)
1612 {
1613 struct orinoco_private *priv = netdev_priv(dev);
1614 hermes_t *hw = &priv->hw;
1615 int err;
1616 struct hermes_idstring idbuf;
1617
1618 /* Set the MAC address */
1619 err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFOWNMACADDR,
1620 HERMES_BYTES_TO_RECLEN(ETH_ALEN), dev->dev_addr);
1621 if (err) {
1622 printk(KERN_ERR "%s: Error %d setting MAC address\n",
1623 dev->name, err);
1624 return err;
1625 }
1626
1627 /* Set up the link mode */
1628 err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFPORTTYPE,
1629 priv->port_type);
1630 if (err) {
1631 printk(KERN_ERR "%s: Error %d setting port type\n",
1632 dev->name, err);
1633 return err;
1634 }
1635 /* Set the channel/frequency */
1636 if (priv->channel != 0 && priv->iw_mode != IW_MODE_INFRA) {
1637 err = hermes_write_wordrec(hw, USER_BAP,
1638 HERMES_RID_CNFOWNCHANNEL,
1639 priv->channel);
1640 if (err) {
1641 printk(KERN_ERR "%s: Error %d setting channel %d\n",
1642 dev->name, err, priv->channel);
1643 return err;
1644 }
1645 }
1646
1647 if (priv->has_ibss) {
1648 u16 createibss;
1649
1650 if ((strlen(priv->desired_essid) == 0) && (priv->createibss)) {
1651 printk(KERN_WARNING "%s: This firmware requires an "
1652 "ESSID in IBSS-Ad-Hoc mode.\n", dev->name);
1653 /* With wvlan_cs, in this case, we would crash.
1654 * hopefully, this driver will behave better...
1655 * Jean II */
1656 createibss = 0;
1657 } else {
1658 createibss = priv->createibss;
1659 }
1660
1661 err = hermes_write_wordrec(hw, USER_BAP,
1662 HERMES_RID_CNFCREATEIBSS,
1663 createibss);
1664 if (err) {
1665 printk(KERN_ERR "%s: Error %d setting CREATEIBSS\n",
1666 dev->name, err);
1667 return err;
1668 }
1669 }
1670
1671 /* Set the desired BSSID */
1672 err = __orinoco_hw_set_wap(priv);
1673 if (err) {
1674 printk(KERN_ERR "%s: Error %d setting AP address\n",
1675 dev->name, err);
1676 return err;
1677 }
1678 /* Set the desired ESSID */
1679 idbuf.len = cpu_to_le16(strlen(priv->desired_essid));
1680 memcpy(&idbuf.val, priv->desired_essid, sizeof(idbuf.val));
1681 /* WinXP wants partner to configure OWNSSID even in IBSS mode. (jimc) */
1682 err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFOWNSSID,
1683 HERMES_BYTES_TO_RECLEN(strlen(priv->desired_essid)+2),
1684 &idbuf);
1685 if (err) {
1686 printk(KERN_ERR "%s: Error %d setting OWNSSID\n",
1687 dev->name, err);
1688 return err;
1689 }
1690 err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFDESIREDSSID,
1691 HERMES_BYTES_TO_RECLEN(strlen(priv->desired_essid)+2),
1692 &idbuf);
1693 if (err) {
1694 printk(KERN_ERR "%s: Error %d setting DESIREDSSID\n",
1695 dev->name, err);
1696 return err;
1697 }
1698
1699 /* Set the station name */
1700 idbuf.len = cpu_to_le16(strlen(priv->nick));
1701 memcpy(&idbuf.val, priv->nick, sizeof(idbuf.val));
1702 err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFOWNNAME,
1703 HERMES_BYTES_TO_RECLEN(strlen(priv->nick)+2),
1704 &idbuf);
1705 if (err) {
1706 printk(KERN_ERR "%s: Error %d setting nickname\n",
1707 dev->name, err);
1708 return err;
1709 }
1710
1711 /* Set AP density */
1712 if (priv->has_sensitivity) {
1713 err = hermes_write_wordrec(hw, USER_BAP,
1714 HERMES_RID_CNFSYSTEMSCALE,
1715 priv->ap_density);
1716 if (err) {
1717 printk(KERN_WARNING "%s: Error %d setting SYSTEMSCALE. "
1718 "Disabling sensitivity control\n",
1719 dev->name, err);
1720
1721 priv->has_sensitivity = 0;
1722 }
1723 }
1724
1725 /* Set RTS threshold */
1726 err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFRTSTHRESHOLD,
1727 priv->rts_thresh);
1728 if (err) {
1729 printk(KERN_ERR "%s: Error %d setting RTS threshold\n",
1730 dev->name, err);
1731 return err;
1732 }
1733
1734 /* Set fragmentation threshold or MWO robustness */
1735 if (priv->has_mwo)
1736 err = hermes_write_wordrec(hw, USER_BAP,
1737 HERMES_RID_CNFMWOROBUST_AGERE,
1738 priv->mwo_robust);
1739 else
1740 err = hermes_write_wordrec(hw, USER_BAP,
1741 HERMES_RID_CNFFRAGMENTATIONTHRESHOLD,
1742 priv->frag_thresh);
1743 if (err) {
1744 printk(KERN_ERR "%s: Error %d setting fragmentation\n",
1745 dev->name, err);
1746 return err;
1747 }
1748
1749 /* Set bitrate */
1750 err = __orinoco_hw_set_bitrate(priv);
1751 if (err) {
1752 printk(KERN_ERR "%s: Error %d setting bitrate\n",
1753 dev->name, err);
1754 return err;
1755 }
1756
1757 /* Set power management */
1758 if (priv->has_pm) {
1759 err = hermes_write_wordrec(hw, USER_BAP,
1760 HERMES_RID_CNFPMENABLED,
1761 priv->pm_on);
1762 if (err) {
1763 printk(KERN_ERR "%s: Error %d setting up PM\n",
1764 dev->name, err);
1765 return err;
1766 }
1767
1768 err = hermes_write_wordrec(hw, USER_BAP,
1769 HERMES_RID_CNFMULTICASTRECEIVE,
1770 priv->pm_mcast);
1771 if (err) {
1772 printk(KERN_ERR "%s: Error %d setting up PM\n",
1773 dev->name, err);
1774 return err;
1775 }
1776 err = hermes_write_wordrec(hw, USER_BAP,
1777 HERMES_RID_CNFMAXSLEEPDURATION,
1778 priv->pm_period);
1779 if (err) {
1780 printk(KERN_ERR "%s: Error %d setting up PM\n",
1781 dev->name, err);
1782 return err;
1783 }
1784 err = hermes_write_wordrec(hw, USER_BAP,
1785 HERMES_RID_CNFPMHOLDOVERDURATION,
1786 priv->pm_timeout);
1787 if (err) {
1788 printk(KERN_ERR "%s: Error %d setting up PM\n",
1789 dev->name, err);
1790 return err;
1791 }
1792 }
1793
1794 /* Set preamble - only for Symbol so far... */
1795 if (priv->has_preamble) {
1796 err = hermes_write_wordrec(hw, USER_BAP,
1797 HERMES_RID_CNFPREAMBLE_SYMBOL,
1798 priv->preamble);
1799 if (err) {
1800 printk(KERN_ERR "%s: Error %d setting preamble\n",
1801 dev->name, err);
1802 return err;
1803 }
1804 }
1805
1806 /* Set up encryption */
1807 if (priv->has_wep) {
1808 err = __orinoco_hw_setup_wep(priv);
1809 if (err) {
1810 printk(KERN_ERR "%s: Error %d activating WEP\n",
1811 dev->name, err);
1812 return err;
1813 }
1814 }
1815
1816 if (priv->iw_mode == IW_MODE_MONITOR) {
1817 /* Enable monitor mode */
1818 dev->type = ARPHRD_IEEE80211;
1819 err = hermes_docmd_wait(hw, HERMES_CMD_TEST |
1820 HERMES_TEST_MONITOR, 0, NULL);
1821 } else {
1822 /* Disable monitor mode */
1823 dev->type = ARPHRD_ETHER;
1824 err = hermes_docmd_wait(hw, HERMES_CMD_TEST |
1825 HERMES_TEST_STOP, 0, NULL);
1826 }
1827 if (err)
1828 return err;
1829
1830 /* Set promiscuity / multicast*/
1831 priv->promiscuous = 0;
1832 priv->mc_count = 0;
1833 __orinoco_set_multicast_list(dev); /* FIXME: what about the xmit_lock */
1834
1835 return 0;
1836 }
1837
1838 /* FIXME: return int? */
1839 static void
1840 __orinoco_set_multicast_list(struct net_device *dev)
1841 {
1842 struct orinoco_private *priv = netdev_priv(dev);
1843 hermes_t *hw = &priv->hw;
1844 int err = 0;
1845 int promisc, mc_count;
1846
1847 /* The Hermes doesn't seem to have an allmulti mode, so we go
1848 * into promiscuous mode and let the upper levels deal. */
1849 if ( (dev->flags & IFF_PROMISC) || (dev->flags & IFF_ALLMULTI) ||
1850 (dev->mc_count > MAX_MULTICAST(priv)) ) {
1851 promisc = 1;
1852 mc_count = 0;
1853 } else {
1854 promisc = 0;
1855 mc_count = dev->mc_count;
1856 }
1857
1858 if (promisc != priv->promiscuous) {
1859 err = hermes_write_wordrec(hw, USER_BAP,
1860 HERMES_RID_CNFPROMISCUOUSMODE,
1861 promisc);
1862 if (err) {
1863 printk(KERN_ERR "%s: Error %d setting PROMISCUOUSMODE to 1.\n",
1864 dev->name, err);
1865 } else
1866 priv->promiscuous = promisc;
1867 }
1868
1869 if (! promisc && (mc_count || priv->mc_count) ) {
1870 struct dev_mc_list *p = dev->mc_list;
1871 struct hermes_multicast mclist;
1872 int i;
1873
1874 for (i = 0; i < mc_count; i++) {
1875 /* paranoia: is list shorter than mc_count? */
1876 BUG_ON(! p);
1877 /* paranoia: bad address size in list? */
1878 BUG_ON(p->dmi_addrlen != ETH_ALEN);
1879
1880 memcpy(mclist.addr[i], p->dmi_addr, ETH_ALEN);
1881 p = p->next;
1882 }
1883
1884 if (p)
1885 printk(KERN_WARNING "%s: Multicast list is "
1886 "longer than mc_count\n", dev->name);
1887
1888 err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFGROUPADDRESSES,
1889 HERMES_BYTES_TO_RECLEN(priv->mc_count * ETH_ALEN),
1890 &mclist);
1891 if (err)
1892 printk(KERN_ERR "%s: Error %d setting multicast list.\n",
1893 dev->name, err);
1894 else
1895 priv->mc_count = mc_count;
1896 }
1897
1898 /* Since we can set the promiscuous flag when it wasn't asked
1899 for, make sure the net_device knows about it. */
1900 if (priv->promiscuous)
1901 dev->flags |= IFF_PROMISC;
1902 else
1903 dev->flags &= ~IFF_PROMISC;
1904 }
1905
1906 /* This must be called from user context, without locks held - use
1907 * schedule_work() */
1908 static void orinoco_reset(struct net_device *dev)
1909 {
1910 struct orinoco_private *priv = netdev_priv(dev);
1911 struct hermes *hw = &priv->hw;
1912 int err;
1913 unsigned long flags;
1914
1915 if (orinoco_lock(priv, &flags) != 0)
1916 /* When the hardware becomes available again, whatever
1917 * detects that is responsible for re-initializing
1918 * it. So no need for anything further */
1919 return;
1920
1921 netif_stop_queue(dev);
1922
1923 /* Shut off interrupts. Depending on what state the hardware
1924 * is in, this might not work, but we'll try anyway */
1925 hermes_set_irqmask(hw, 0);
1926 hermes_write_regn(hw, EVACK, 0xffff);
1927
1928 priv->hw_unavailable++;
1929 priv->last_linkstatus = 0xffff; /* firmware will have to reassociate */
1930 netif_carrier_off(dev);
1931
1932 orinoco_unlock(priv, &flags);
1933
1934 /* Scanning support: Cleanup of driver struct */
1935 kfree(priv->scan_result);
1936 priv->scan_result = NULL;
1937 priv->scan_inprogress = 0;
1938
1939 if (priv->hard_reset) {
1940 err = (*priv->hard_reset)(priv);
1941 if (err) {
1942 printk(KERN_ERR "%s: orinoco_reset: Error %d "
1943 "performing hard reset\n", dev->name, err);
1944 goto disable;
1945 }
1946 }
1947
1948 err = orinoco_reinit_firmware(dev);
1949 if (err) {
1950 printk(KERN_ERR "%s: orinoco_reset: Error %d re-initializing firmware\n",
1951 dev->name, err);
1952 goto disable;
1953 }
1954
1955 spin_lock_irq(&priv->lock); /* This has to be called from user context */
1956
1957 priv->hw_unavailable--;
1958
1959 /* priv->open or priv->hw_unavailable might have changed while
1960 * we dropped the lock */
1961 if (priv->open && (! priv->hw_unavailable)) {
1962 err = __orinoco_up(dev);
1963 if (err) {
1964 printk(KERN_ERR "%s: orinoco_reset: Error %d reenabling card\n",
1965 dev->name, err);
1966 } else
1967 dev->trans_start = jiffies;
1968 }
1969
1970 spin_unlock_irq(&priv->lock);
1971
1972 return;
1973 disable:
1974 hermes_set_irqmask(hw, 0);
1975 netif_device_detach(dev);
1976 printk(KERN_ERR "%s: Device has been disabled!\n", dev->name);
1977 }
1978
1979 /********************************************************************/
1980 /* Interrupt handler */
1981 /********************************************************************/
1982
1983 static void __orinoco_ev_tick(struct net_device *dev, hermes_t *hw)
1984 {
1985 printk(KERN_DEBUG "%s: TICK\n", dev->name);
1986 }
1987
1988 static void __orinoco_ev_wterr(struct net_device *dev, hermes_t *hw)
1989 {
1990 /* This seems to happen a fair bit under load, but ignoring it
1991 seems to work fine...*/
1992 printk(KERN_DEBUG "%s: MAC controller error (WTERR). Ignoring.\n",
1993 dev->name);
1994 }
1995
1996 irqreturn_t orinoco_interrupt(int irq, void *dev_id, struct pt_regs *regs)
1997 {
1998 struct net_device *dev = (struct net_device *)dev_id;
1999 struct orinoco_private *priv = netdev_priv(dev);
2000 hermes_t *hw = &priv->hw;
2001 int count = MAX_IRQLOOPS_PER_IRQ;
2002 u16 evstat, events;
2003 /* These are used to detect a runaway interrupt situation */
2004 /* If we get more than MAX_IRQLOOPS_PER_JIFFY iterations in a jiffy,
2005 * we panic and shut down the hardware */
2006 static int last_irq_jiffy = 0; /* jiffies value the last time
2007 * we were called */
2008 static int loops_this_jiffy = 0;
2009 unsigned long flags;
2010
2011 if (orinoco_lock(priv, &flags) != 0) {
2012 /* If hw is unavailable - we don't know if the irq was
2013 * for us or not */
2014 return IRQ_HANDLED;
2015 }
2016
2017 evstat = hermes_read_regn(hw, EVSTAT);
2018 events = evstat & hw->inten;
2019 if (! events) {
2020 orinoco_unlock(priv, &flags);
2021 return IRQ_NONE;
2022 }
2023
2024 if (jiffies != last_irq_jiffy)
2025 loops_this_jiffy = 0;
2026 last_irq_jiffy = jiffies;
2027
2028 while (events && count--) {
2029 if (++loops_this_jiffy > MAX_IRQLOOPS_PER_JIFFY) {
2030 printk(KERN_WARNING "%s: IRQ handler is looping too "
2031 "much! Resetting.\n", dev->name);
2032 /* Disable interrupts for now */
2033 hermes_set_irqmask(hw, 0);
2034 schedule_work(&priv->reset_work);
2035 break;
2036 }
2037
2038 /* Check the card hasn't been removed */
2039 if (! hermes_present(hw)) {
2040 DEBUG(0, "orinoco_interrupt(): card removed\n");
2041 break;
2042 }
2043
2044 if (events & HERMES_EV_TICK)
2045 __orinoco_ev_tick(dev, hw);
2046 if (events & HERMES_EV_WTERR)
2047 __orinoco_ev_wterr(dev, hw);
2048 if (events & HERMES_EV_INFDROP)
2049 __orinoco_ev_infdrop(dev, hw);
2050 if (events & HERMES_EV_INFO)
2051 __orinoco_ev_info(dev, hw);
2052 if (events & HERMES_EV_RX)
2053 __orinoco_ev_rx(dev, hw);
2054 if (events & HERMES_EV_TXEXC)
2055 __orinoco_ev_txexc(dev, hw);
2056 if (events & HERMES_EV_TX)
2057 __orinoco_ev_tx(dev, hw);
2058 if (events & HERMES_EV_ALLOC)
2059 __orinoco_ev_alloc(dev, hw);
2060
2061 hermes_write_regn(hw, EVACK, evstat);
2062
2063 evstat = hermes_read_regn(hw, EVSTAT);
2064 events = evstat & hw->inten;
2065 };
2066
2067 orinoco_unlock(priv, &flags);
2068 return IRQ_HANDLED;
2069 }
2070
2071 /********************************************************************/
2072 /* Initialization */
2073 /********************************************************************/
2074
2075 struct comp_id {
2076 u16 id, variant, major, minor;
2077 } __attribute__ ((packed));
2078
2079 static inline fwtype_t determine_firmware_type(struct comp_id *nic_id)
2080 {
2081 if (nic_id->id < 0x8000)
2082 return FIRMWARE_TYPE_AGERE;
2083 else if (nic_id->id == 0x8000 && nic_id->major == 0)
2084 return FIRMWARE_TYPE_SYMBOL;
2085 else
2086 return FIRMWARE_TYPE_INTERSIL;
2087 }
2088
2089 /* Set priv->firmware type, determine firmware properties */
2090 static int determine_firmware(struct net_device *dev)
2091 {
2092 struct orinoco_private *priv = netdev_priv(dev);
2093 hermes_t *hw = &priv->hw;
2094 int err;
2095 struct comp_id nic_id, sta_id;
2096 unsigned int firmver;
2097 char tmp[SYMBOL_MAX_VER_LEN+1];
2098
2099 /* Get the hardware version */
2100 err = HERMES_READ_RECORD(hw, USER_BAP, HERMES_RID_NICID, &nic_id);
2101 if (err) {
2102 printk(KERN_ERR "%s: Cannot read hardware identity: error %d\n",
2103 dev->name, err);
2104 return err;
2105 }
2106
2107 le16_to_cpus(&nic_id.id);
2108 le16_to_cpus(&nic_id.variant);
2109 le16_to_cpus(&nic_id.major);
2110 le16_to_cpus(&nic_id.minor);
2111 printk(KERN_DEBUG "%s: Hardware identity %04x:%04x:%04x:%04x\n",
2112 dev->name, nic_id.id, nic_id.variant,
2113 nic_id.major, nic_id.minor);
2114
2115 priv->firmware_type = determine_firmware_type(&nic_id);
2116
2117 /* Get the firmware version */
2118 err = HERMES_READ_RECORD(hw, USER_BAP, HERMES_RID_STAID, &sta_id);
2119 if (err) {
2120 printk(KERN_ERR "%s: Cannot read station identity: error %d\n",
2121 dev->name, err);
2122 return err;
2123 }
2124
2125 le16_to_cpus(&sta_id.id);
2126 le16_to_cpus(&sta_id.variant);
2127 le16_to_cpus(&sta_id.major);
2128 le16_to_cpus(&sta_id.minor);
2129 printk(KERN_DEBUG "%s: Station identity %04x:%04x:%04x:%04x\n",
2130 dev->name, sta_id.id, sta_id.variant,
2131 sta_id.major, sta_id.minor);
2132
2133 switch (sta_id.id) {
2134 case 0x15:
2135 printk(KERN_ERR "%s: Primary firmware is active\n",
2136 dev->name);
2137 return -ENODEV;
2138 case 0x14b:
2139 printk(KERN_ERR "%s: Tertiary firmware is active\n",
2140 dev->name);
2141 return -ENODEV;
2142 case 0x1f: /* Intersil, Agere, Symbol Spectrum24 */
2143 case 0x21: /* Symbol Spectrum24 Trilogy */
2144 break;
2145 default:
2146 printk(KERN_NOTICE "%s: Unknown station ID, please report\n",
2147 dev->name);
2148 break;
2149 }
2150
2151 /* Default capabilities */
2152 priv->has_sensitivity = 1;
2153 priv->has_mwo = 0;
2154 priv->has_preamble = 0;
2155 priv->has_port3 = 1;
2156 priv->has_ibss = 1;
2157 priv->has_wep = 0;
2158 priv->has_big_wep = 0;
2159
2160 /* Determine capabilities from the firmware version */
2161 switch (priv->firmware_type) {
2162 case FIRMWARE_TYPE_AGERE:
2163 /* Lucent Wavelan IEEE, Lucent Orinoco, Cabletron RoamAbout,
2164 ELSA, Melco, HP, IBM, Dell 1150, Compaq 110/210 */
2165 snprintf(priv->fw_name, sizeof(priv->fw_name) - 1,
2166 "Lucent/Agere %d.%02d", sta_id.major, sta_id.minor);
2167
2168 firmver = ((unsigned long)sta_id.major << 16) | sta_id.minor;
2169
2170 priv->has_ibss = (firmver >= 0x60006);
2171 priv->has_wep = (firmver >= 0x40020);
2172 priv->has_big_wep = 1; /* FIXME: this is wrong - how do we tell
2173 Gold cards from the others? */
2174 priv->has_mwo = (firmver >= 0x60000);
2175 priv->has_pm = (firmver >= 0x40020); /* Don't work in 7.52 ? */
2176 priv->ibss_port = 1;
2177 priv->has_hostscan = (firmver >= 0x8000a);
2178 priv->broken_monitor = (firmver >= 0x80000);
2179
2180 /* Tested with Agere firmware :
2181 * 1.16 ; 4.08 ; 4.52 ; 6.04 ; 6.16 ; 7.28 => Jean II
2182 * Tested CableTron firmware : 4.32 => Anton */
2183 break;
2184 case FIRMWARE_TYPE_SYMBOL:
2185 /* Symbol , 3Com AirConnect, Intel, Ericsson WLAN */
2186 /* Intel MAC : 00:02:B3:* */
2187 /* 3Com MAC : 00:50:DA:* */
2188 memset(tmp, 0, sizeof(tmp));
2189 /* Get the Symbol firmware version */
2190 err = hermes_read_ltv(hw, USER_BAP,
2191 HERMES_RID_SECONDARYVERSION_SYMBOL,
2192 SYMBOL_MAX_VER_LEN, NULL, &tmp);
2193 if (err) {
2194 printk(KERN_WARNING
2195 "%s: Error %d reading Symbol firmware info. Wildly guessing capabilities...\n",
2196 dev->name, err);
2197 firmver = 0;
2198 tmp[0] = '\0';
2199 } else {
2200 /* The firmware revision is a string, the format is
2201 * something like : "V2.20-01".
2202 * Quick and dirty parsing... - Jean II
2203 */
2204 firmver = ((tmp[1] - '0') << 16) | ((tmp[3] - '0') << 12)
2205 | ((tmp[4] - '0') << 8) | ((tmp[6] - '0') << 4)
2206 | (tmp[7] - '0');
2207
2208 tmp[SYMBOL_MAX_VER_LEN] = '\0';
2209 }
2210
2211 snprintf(priv->fw_name, sizeof(priv->fw_name) - 1,
2212 "Symbol %s", tmp);
2213
2214 priv->has_ibss = (firmver >= 0x20000);
2215 priv->has_wep = (firmver >= 0x15012);
2216 priv->has_big_wep = (firmver >= 0x20000);
2217 priv->has_pm = (firmver >= 0x20000 && firmver < 0x22000) ||
2218 (firmver >= 0x29000 && firmver < 0x30000) ||
2219 firmver >= 0x31000;
2220 priv->has_preamble = (firmver >= 0x20000);
2221 priv->ibss_port = 4;
2222 priv->broken_disableport = (firmver == 0x25013) ||
2223 (firmver >= 0x30000 && firmver <= 0x31000);
2224 priv->has_hostscan = (firmver >= 0x31001) ||
2225 (firmver >= 0x29057 && firmver < 0x30000);
2226 /* Tested with Intel firmware : 0x20015 => Jean II */
2227 /* Tested with 3Com firmware : 0x15012 & 0x22001 => Jean II */
2228 break;
2229 case FIRMWARE_TYPE_INTERSIL:
2230 /* D-Link, Linksys, Adtron, ZoomAir, and many others...
2231 * Samsung, Compaq 100/200 and Proxim are slightly
2232 * different and less well tested */
2233 /* D-Link MAC : 00:40:05:* */
2234 /* Addtron MAC : 00:90:D1:* */
2235 snprintf(priv->fw_name, sizeof(priv->fw_name) - 1,
2236 "Intersil %d.%d.%d", sta_id.major, sta_id.minor,
2237 sta_id.variant);
2238
2239 firmver = ((unsigned long)sta_id.major << 16) |
2240 ((unsigned long)sta_id.minor << 8) | sta_id.variant;
2241
2242 priv->has_ibss = (firmver >= 0x000700); /* FIXME */
2243 priv->has_big_wep = priv->has_wep = (firmver >= 0x000800);
2244 priv->has_pm = (firmver >= 0x000700);
2245 priv->has_hostscan = (firmver >= 0x010301);
2246
2247 if (firmver >= 0x000800)
2248 priv->ibss_port = 0;
2249 else {
2250 printk(KERN_NOTICE "%s: Intersil firmware earlier "
2251 "than v0.8.x - several features not supported\n",
2252 dev->name);
2253 priv->ibss_port = 1;
2254 }
2255 break;
2256 }
2257 printk(KERN_DEBUG "%s: Firmware determined as %s\n", dev->name,
2258 priv->fw_name);
2259
2260 return 0;
2261 }
2262
2263 static int orinoco_init(struct net_device *dev)
2264 {
2265 struct orinoco_private *priv = netdev_priv(dev);
2266 hermes_t *hw = &priv->hw;
2267 int err = 0;
2268 struct hermes_idstring nickbuf;
2269 u16 reclen;
2270 int len;
2271
2272 TRACE_ENTER(dev->name);
2273
2274 /* No need to lock, the hw_unavailable flag is already set in
2275 * alloc_orinocodev() */
2276 priv->nicbuf_size = IEEE80211_FRAME_LEN + ETH_HLEN;
2277
2278 /* Initialize the firmware */
2279 err = orinoco_reinit_firmware(dev);
2280 if (err != 0) {
2281 printk(KERN_ERR "%s: failed to initialize firmware (err = %d)\n",
2282 dev->name, err);
2283 goto out;
2284 }
2285
2286 err = determine_firmware(dev);
2287 if (err != 0) {
2288 printk(KERN_ERR "%s: Incompatible firmware, aborting\n",
2289 dev->name);
2290 goto out;
2291 }
2292
2293 if (priv->has_port3)
2294 printk(KERN_DEBUG "%s: Ad-hoc demo mode supported\n", dev->name);
2295 if (priv->has_ibss)
2296 printk(KERN_DEBUG "%s: IEEE standard IBSS ad-hoc mode supported\n",
2297 dev->name);
2298 if (priv->has_wep) {
2299 printk(KERN_DEBUG "%s: WEP supported, ", dev->name);
2300 if (priv->has_big_wep)
2301 printk("104-bit key\n");
2302 else
2303 printk("40-bit key\n");
2304 }
2305
2306 /* Get the MAC address */
2307 err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CNFOWNMACADDR,
2308 ETH_ALEN, NULL, dev->dev_addr);
2309 if (err) {
2310 printk(KERN_WARNING "%s: failed to read MAC address!\n",
2311 dev->name);
2312 goto out;
2313 }
2314
2315 printk(KERN_DEBUG "%s: MAC address %02X:%02X:%02X:%02X:%02X:%02X\n",
2316 dev->name, dev->dev_addr[0], dev->dev_addr[1],
2317 dev->dev_addr[2], dev->dev_addr[3], dev->dev_addr[4],
2318 dev->dev_addr[5]);
2319
2320 /* Get the station name */
2321 err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CNFOWNNAME,
2322 sizeof(nickbuf), &reclen, &nickbuf);
2323 if (err) {
2324 printk(KERN_ERR "%s: failed to read station name\n",
2325 dev->name);
2326 goto out;
2327 }
2328 if (nickbuf.len)
2329 len = min(IW_ESSID_MAX_SIZE, (int)le16_to_cpu(nickbuf.len));
2330 else
2331 len = min(IW_ESSID_MAX_SIZE, 2 * reclen);
2332 memcpy(priv->nick, &nickbuf.val, len);
2333 priv->nick[len] = '\0';
2334
2335 printk(KERN_DEBUG "%s: Station name \"%s\"\n", dev->name, priv->nick);
2336
2337 /* Get allowed channels */
2338 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CHANNELLIST,
2339 &priv->channel_mask);
2340 if (err) {
2341 printk(KERN_ERR "%s: failed to read channel list!\n",
2342 dev->name);
2343 goto out;
2344 }
2345
2346 /* Get initial AP density */
2347 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFSYSTEMSCALE,
2348 &priv->ap_density);
2349 if (err || priv->ap_density < 1 || priv->ap_density > 3) {
2350 priv->has_sensitivity = 0;
2351 }
2352
2353 /* Get initial RTS threshold */
2354 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFRTSTHRESHOLD,
2355 &priv->rts_thresh);
2356 if (err) {
2357 printk(KERN_ERR "%s: failed to read RTS threshold!\n",
2358 dev->name);
2359 goto out;
2360 }
2361
2362 /* Get initial fragmentation settings */
2363 if (priv->has_mwo)
2364 err = hermes_read_wordrec(hw, USER_BAP,
2365 HERMES_RID_CNFMWOROBUST_AGERE,
2366 &priv->mwo_robust);
2367 else
2368 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFFRAGMENTATIONTHRESHOLD,
2369 &priv->frag_thresh);
2370 if (err) {
2371 printk(KERN_ERR "%s: failed to read fragmentation settings!\n",
2372 dev->name);
2373 goto out;
2374 }
2375
2376 /* Power management setup */
2377 if (priv->has_pm) {
2378 priv->pm_on = 0;
2379 priv->pm_mcast = 1;
2380 err = hermes_read_wordrec(hw, USER_BAP,
2381 HERMES_RID_CNFMAXSLEEPDURATION,
2382 &priv->pm_period);
2383 if (err) {
2384 printk(KERN_ERR "%s: failed to read power management period!\n",
2385 dev->name);
2386 goto out;
2387 }
2388 err = hermes_read_wordrec(hw, USER_BAP,
2389 HERMES_RID_CNFPMHOLDOVERDURATION,
2390 &priv->pm_timeout);
2391 if (err) {
2392 printk(KERN_ERR "%s: failed to read power management timeout!\n",
2393 dev->name);
2394 goto out;
2395 }
2396 }
2397
2398 /* Preamble setup */
2399 if (priv->has_preamble) {
2400 err = hermes_read_wordrec(hw, USER_BAP,
2401 HERMES_RID_CNFPREAMBLE_SYMBOL,
2402 &priv->preamble);
2403 if (err)
2404 goto out;
2405 }
2406
2407 /* Set up the default configuration */
2408 priv->iw_mode = IW_MODE_INFRA;
2409 /* By default use IEEE/IBSS ad-hoc mode if we have it */
2410 priv->prefer_port3 = priv->has_port3 && (! priv->has_ibss);
2411 set_port_type(priv);
2412 priv->channel = 0; /* use firmware default */
2413
2414 priv->promiscuous = 0;
2415 priv->wep_on = 0;
2416 priv->tx_key = 0;
2417
2418 /* Make the hardware available, as long as it hasn't been
2419 * removed elsewhere (e.g. by PCMCIA hot unplug) */
2420 spin_lock_irq(&priv->lock);
2421 priv->hw_unavailable--;
2422 spin_unlock_irq(&priv->lock);
2423
2424 printk(KERN_DEBUG "%s: ready\n", dev->name);
2425
2426 out:
2427 TRACE_EXIT(dev->name);
2428 return err;
2429 }
2430
2431 struct net_device *alloc_orinocodev(int sizeof_card,
2432 int (*hard_reset)(struct orinoco_private *))
2433 {
2434 struct net_device *dev;
2435 struct orinoco_private *priv;
2436
2437 dev = alloc_etherdev(sizeof(struct orinoco_private) + sizeof_card);
2438 if (! dev)
2439 return NULL;
2440 priv = netdev_priv(dev);
2441 priv->ndev = dev;
2442 if (sizeof_card)
2443 priv->card = (void *)((unsigned long)priv
2444 + sizeof(struct orinoco_private));
2445 else
2446 priv->card = NULL;
2447
2448 /* Setup / override net_device fields */
2449 dev->init = orinoco_init;
2450 dev->hard_start_xmit = orinoco_xmit;
2451 dev->tx_timeout = orinoco_tx_timeout;
2452 dev->watchdog_timeo = HZ; /* 1 second timeout */
2453 dev->get_stats = orinoco_get_stats;
2454 dev->ethtool_ops = &orinoco_ethtool_ops;
2455 dev->get_wireless_stats = orinoco_get_wireless_stats;
2456 dev->wireless_handlers = (struct iw_handler_def *)&orinoco_handler_def;
2457 dev->change_mtu = orinoco_change_mtu;
2458 dev->set_multicast_list = orinoco_set_multicast_list;
2459 /* we use the default eth_mac_addr for setting the MAC addr */
2460
2461 /* Set up default callbacks */
2462 dev->open = orinoco_open;
2463 dev->stop = orinoco_stop;
2464 priv->hard_reset = hard_reset;
2465
2466 spin_lock_init(&priv->lock);
2467 priv->open = 0;
2468 priv->hw_unavailable = 1; /* orinoco_init() must clear this
2469 * before anything else touches the
2470 * hardware */
2471 INIT_WORK(&priv->reset_work, (void (*)(void *))orinoco_reset, dev);
2472 INIT_WORK(&priv->join_work, (void (*)(void *))orinoco_join_ap, dev);
2473 INIT_WORK(&priv->wevent_work, (void (*)(void *))orinoco_send_wevents, dev);
2474
2475 netif_carrier_off(dev);
2476 priv->last_linkstatus = 0xffff;
2477
2478 return dev;
2479
2480 }
2481
2482 void free_orinocodev(struct net_device *dev)
2483 {
2484 struct orinoco_private *priv = netdev_priv(dev);
2485
2486 kfree(priv->scan_result);
2487 free_netdev(dev);
2488 }
2489
2490 /********************************************************************/
2491 /* Wireless extensions */
2492 /********************************************************************/
2493
2494 static int orinoco_hw_get_essid(struct orinoco_private *priv, int *active,
2495 char buf[IW_ESSID_MAX_SIZE+1])
2496 {
2497 hermes_t *hw = &priv->hw;
2498 int err = 0;
2499 struct hermes_idstring essidbuf;
2500 char *p = (char *)(&essidbuf.val);
2501 int len;
2502 unsigned long flags;
2503
2504 if (orinoco_lock(priv, &flags) != 0)
2505 return -EBUSY;
2506
2507 if (strlen(priv->desired_essid) > 0) {
2508 /* We read the desired SSID from the hardware rather
2509 than from priv->desired_essid, just in case the
2510 firmware is allowed to change it on us. I'm not
2511 sure about this */
2512 /* My guess is that the OWNSSID should always be whatever
2513 * we set to the card, whereas CURRENT_SSID is the one that
2514 * may change... - Jean II */
2515 u16 rid;
2516
2517 *active = 1;
2518
2519 rid = (priv->port_type == 3) ? HERMES_RID_CNFOWNSSID :
2520 HERMES_RID_CNFDESIREDSSID;
2521
2522 err = hermes_read_ltv(hw, USER_BAP, rid, sizeof(essidbuf),
2523 NULL, &essidbuf);
2524 if (err)
2525 goto fail_unlock;
2526 } else {
2527 *active = 0;
2528
2529 err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CURRENTSSID,
2530 sizeof(essidbuf), NULL, &essidbuf);
2531 if (err)
2532 goto fail_unlock;
2533 }
2534
2535 len = le16_to_cpu(essidbuf.len);
2536 BUG_ON(len > IW_ESSID_MAX_SIZE);
2537
2538 memset(buf, 0, IW_ESSID_MAX_SIZE+1);
2539 memcpy(buf, p, len);
2540 buf[len] = '\0';
2541
2542 fail_unlock:
2543 orinoco_unlock(priv, &flags);
2544
2545 return err;
2546 }
2547
2548 static long orinoco_hw_get_freq(struct orinoco_private *priv)
2549 {
2550
2551 hermes_t *hw = &priv->hw;
2552 int err = 0;
2553 u16 channel;
2554 long freq = 0;
2555 unsigned long flags;
2556
2557 if (orinoco_lock(priv, &flags) != 0)
2558 return -EBUSY;
2559
2560 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CURRENTCHANNEL, &channel);
2561 if (err)
2562 goto out;
2563
2564 /* Intersil firmware 1.3.5 returns 0 when the interface is down */
2565 if (channel == 0) {
2566 err = -EBUSY;
2567 goto out;
2568 }
2569
2570 if ( (channel < 1) || (channel > NUM_CHANNELS) ) {
2571 printk(KERN_WARNING "%s: Channel out of range (%d)!\n",
2572 priv->ndev->name, channel);
2573 err = -EBUSY;
2574 goto out;
2575
2576 }
2577 freq = channel_frequency[channel-1] * 100000;
2578
2579 out:
2580 orinoco_unlock(priv, &flags);
2581
2582 if (err > 0)
2583 err = -EBUSY;
2584 return err ? err : freq;
2585 }
2586
2587 static int orinoco_hw_get_bitratelist(struct orinoco_private *priv,
2588 int *numrates, s32 *rates, int max)
2589 {
2590 hermes_t *hw = &priv->hw;
2591 struct hermes_idstring list;
2592 unsigned char *p = (unsigned char *)&list.val;
2593 int err = 0;
2594 int num;
2595 int i;
2596 unsigned long flags;
2597
2598 if (orinoco_lock(priv, &flags) != 0)
2599 return -EBUSY;
2600
2601 err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_SUPPORTEDDATARATES,
2602 sizeof(list), NULL, &list);
2603 orinoco_unlock(priv, &flags);
2604
2605 if (err)
2606 return err;
2607
2608 num = le16_to_cpu(list.len);
2609 *numrates = num;
2610 num = min(num, max);
2611
2612 for (i = 0; i < num; i++) {
2613 rates[i] = (p[i] & 0x7f) * 500000; /* convert to bps */
2614 }
2615
2616 return 0;
2617 }
2618
2619 static int orinoco_ioctl_getname(struct net_device *dev,
2620 struct iw_request_info *info,
2621 char *name,
2622 char *extra)
2623 {
2624 struct orinoco_private *priv = netdev_priv(dev);
2625 int numrates;
2626 int err;
2627
2628 err = orinoco_hw_get_bitratelist(priv, &numrates, NULL, 0);
2629
2630 if (!err && (numrates > 2))
2631 strcpy(name, "IEEE 802.11b");
2632 else
2633 strcpy(name, "IEEE 802.11-DS");
2634
2635 return 0;
2636 }
2637
2638 static int orinoco_ioctl_setwap(struct net_device *dev,
2639 struct iw_request_info *info,
2640 struct sockaddr *ap_addr,
2641 char *extra)
2642 {
2643 struct orinoco_private *priv = netdev_priv(dev);
2644 int err = -EINPROGRESS; /* Call commit handler */
2645 unsigned long flags;
2646 static const u8 off_addr[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
2647 static const u8 any_addr[] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
2648
2649 if (orinoco_lock(priv, &flags) != 0)
2650 return -EBUSY;
2651
2652 /* Enable automatic roaming - no sanity checks are needed */
2653 if (memcmp(&ap_addr->sa_data, off_addr, ETH_ALEN) == 0 ||
2654 memcmp(&ap_addr->sa_data, any_addr, ETH_ALEN) == 0) {
2655 priv->bssid_fixed = 0;
2656 memset(priv->desired_bssid, 0, ETH_ALEN);
2657
2658 /* "off" means keep existing connection */
2659 if (ap_addr->sa_data[0] == 0) {
2660 __orinoco_hw_set_wap(priv);
2661 err = 0;
2662 }
2663 goto out;
2664 }
2665
2666 if (priv->firmware_type == FIRMWARE_TYPE_AGERE) {
2667 printk(KERN_WARNING "%s: Lucent/Agere firmware doesn't "
2668 "support manual roaming\n",
2669 dev->name);
2670 err = -EOPNOTSUPP;
2671 goto out;
2672 }
2673
2674 if (priv->iw_mode != IW_MODE_INFRA) {
2675 printk(KERN_WARNING "%s: Manual roaming supported only in "
2676 "managed mode\n", dev->name);
2677 err = -EOPNOTSUPP;
2678 goto out;
2679 }
2680
2681 /* Intersil firmware hangs without Desired ESSID */
2682 if (priv->firmware_type == FIRMWARE_TYPE_INTERSIL &&
2683 strlen(priv->desired_essid) == 0) {
2684 printk(KERN_WARNING "%s: Desired ESSID must be set for "
2685 "manual roaming\n", dev->name);
2686 err = -EOPNOTSUPP;
2687 goto out;
2688 }
2689
2690 /* Finally, enable manual roaming */
2691 priv->bssid_fixed = 1;
2692 memcpy(priv->desired_bssid, &ap_addr->sa_data, ETH_ALEN);
2693
2694 out:
2695 orinoco_unlock(priv, &flags);
2696 return err;
2697 }
2698
2699 static int orinoco_ioctl_getwap(struct net_device *dev,
2700 struct iw_request_info *info,
2701 struct sockaddr *ap_addr,
2702 char *extra)
2703 {
2704 struct orinoco_private *priv = netdev_priv(dev);
2705
2706 hermes_t *hw = &priv->hw;
2707 int err = 0;
2708 unsigned long flags;
2709
2710 if (orinoco_lock(priv, &flags) != 0)
2711 return -EBUSY;
2712
2713 ap_addr->sa_family = ARPHRD_ETHER;
2714 err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CURRENTBSSID,
2715 ETH_ALEN, NULL, ap_addr->sa_data);
2716
2717 orinoco_unlock(priv, &flags);
2718
2719 return err;
2720 }
2721
2722 static int orinoco_ioctl_setmode(struct net_device *dev,
2723 struct iw_request_info *info,
2724 u32 *mode,
2725 char *extra)
2726 {
2727 struct orinoco_private *priv = netdev_priv(dev);
2728 int err = -EINPROGRESS; /* Call commit handler */
2729 unsigned long flags;
2730
2731 if (priv->iw_mode == *mode)
2732 return 0;
2733
2734 if (orinoco_lock(priv, &flags) != 0)
2735 return -EBUSY;
2736
2737 switch (*mode) {
2738 case IW_MODE_ADHOC:
2739 if (!priv->has_ibss && !priv->has_port3)
2740 err = -EOPNOTSUPP;
2741 break;
2742
2743 case IW_MODE_INFRA:
2744 break;
2745
2746 case IW_MODE_MONITOR:
2747 if (priv->broken_monitor && !force_monitor) {
2748 printk(KERN_WARNING "%s: Monitor mode support is "
2749 "buggy in this firmware, not enabling\n",
2750 dev->name);
2751 err = -EOPNOTSUPP;
2752 }
2753 break;
2754
2755 default:
2756 err = -EOPNOTSUPP;
2757 break;
2758 }
2759
2760 if (err == -EINPROGRESS) {
2761 priv->iw_mode = *mode;
2762 set_port_type(priv);
2763 }
2764
2765 orinoco_unlock(priv, &flags);
2766
2767 return err;
2768 }
2769
2770 static int orinoco_ioctl_getmode(struct net_device *dev,
2771 struct iw_request_info *info,
2772 u32 *mode,
2773 char *extra)
2774 {
2775 struct orinoco_private *priv = netdev_priv(dev);
2776
2777 *mode = priv->iw_mode;
2778 return 0;
2779 }
2780
2781 static int orinoco_ioctl_getiwrange(struct net_device *dev,
2782 struct iw_request_info *info,
2783 struct iw_point *rrq,
2784 char *extra)
2785 {
2786 struct orinoco_private *priv = netdev_priv(dev);
2787 int err = 0;
2788 struct iw_range *range = (struct iw_range *) extra;
2789 int numrates;
2790 int i, k;
2791
2792 TRACE_ENTER(dev->name);
2793
2794 rrq->length = sizeof(struct iw_range);
2795 memset(range, 0, sizeof(struct iw_range));
2796
2797 range->we_version_compiled = WIRELESS_EXT;
2798 range->we_version_source = 14;
2799
2800 /* Set available channels/frequencies */
2801 range->num_channels = NUM_CHANNELS;
2802 k = 0;
2803 for (i = 0; i < NUM_CHANNELS; i++) {
2804 if (priv->channel_mask & (1 << i)) {
2805 range->freq[k].i = i + 1;
2806 range->freq[k].m = channel_frequency[i] * 100000;
2807 range->freq[k].e = 1;
2808 k++;
2809 }
2810
2811 if (k >= IW_MAX_FREQUENCIES)
2812 break;
2813 }
2814 range->num_frequency = k;
2815 range->sensitivity = 3;
2816
2817 if (priv->has_wep) {
2818 range->max_encoding_tokens = ORINOCO_MAX_KEYS;
2819 range->encoding_size[0] = SMALL_KEY_SIZE;
2820 range->num_encoding_sizes = 1;
2821
2822 if (priv->has_big_wep) {
2823 range->encoding_size[1] = LARGE_KEY_SIZE;
2824 range->num_encoding_sizes = 2;
2825 }
2826 }
2827
2828 if ((priv->iw_mode == IW_MODE_ADHOC) && (priv->spy_number == 0)){
2829 /* Quality stats meaningless in ad-hoc mode */
2830 } else {
2831 range->max_qual.qual = 0x8b - 0x2f;
2832 range->max_qual.level = 0x2f - 0x95 - 1;
2833 range->max_qual.noise = 0x2f - 0x95 - 1;
2834 /* Need to get better values */
2835 range->avg_qual.qual = 0x24;
2836 range->avg_qual.level = 0xC2;
2837 range->avg_qual.noise = 0x9E;
2838 }
2839
2840 err = orinoco_hw_get_bitratelist(priv, &numrates,
2841 range->bitrate, IW_MAX_BITRATES);
2842 if (err)
2843 return err;
2844 range->num_bitrates = numrates;
2845
2846 /* Set an indication of the max TCP throughput in bit/s that we can
2847 * expect using this interface. May be use for QoS stuff...
2848 * Jean II */
2849 if (numrates > 2)
2850 range->throughput = 5 * 1000 * 1000; /* ~5 Mb/s */
2851 else
2852 range->throughput = 1.5 * 1000 * 1000; /* ~1.5 Mb/s */
2853
2854 range->min_rts = 0;
2855 range->max_rts = 2347;
2856 range->min_frag = 256;
2857 range->max_frag = 2346;
2858
2859 range->min_pmp = 0;
2860 range->max_pmp = 65535000;
2861 range->min_pmt = 0;
2862 range->max_pmt = 65535 * 1000; /* ??? */
2863 range->pmp_flags = IW_POWER_PERIOD;
2864 range->pmt_flags = IW_POWER_TIMEOUT;
2865 range->pm_capa = IW_POWER_PERIOD | IW_POWER_TIMEOUT | IW_POWER_UNICAST_R;
2866
2867 range->retry_capa = IW_RETRY_LIMIT | IW_RETRY_LIFETIME;
2868 range->retry_flags = IW_RETRY_LIMIT;
2869 range->r_time_flags = IW_RETRY_LIFETIME;
2870 range->min_retry = 0;
2871 range->max_retry = 65535; /* ??? */
2872 range->min_r_time = 0;
2873 range->max_r_time = 65535 * 1000; /* ??? */
2874
2875 TRACE_EXIT(dev->name);
2876
2877 return 0;
2878 }
2879
2880 static int orinoco_ioctl_setiwencode(struct net_device *dev,
2881 struct iw_request_info *info,
2882 struct iw_point *erq,
2883 char *keybuf)
2884 {
2885 struct orinoco_private *priv = netdev_priv(dev);
2886 int index = (erq->flags & IW_ENCODE_INDEX) - 1;
2887 int setindex = priv->tx_key;
2888 int enable = priv->wep_on;
2889 int restricted = priv->wep_restrict;
2890 u16 xlen = 0;
2891 int err = -EINPROGRESS; /* Call commit handler */
2892 unsigned long flags;
2893
2894 if (! priv->has_wep)
2895 return -EOPNOTSUPP;
2896
2897 if (erq->pointer) {
2898 /* We actually have a key to set - check its length */
2899 if (erq->length > LARGE_KEY_SIZE)
2900 return -E2BIG;
2901
2902 if ( (erq->length > SMALL_KEY_SIZE) && !priv->has_big_wep )
2903 return -E2BIG;
2904 }
2905
2906 if (orinoco_lock(priv, &flags) != 0)
2907 return -EBUSY;
2908
2909 if (erq->pointer) {
2910 if ((index < 0) || (index >= ORINOCO_MAX_KEYS))
2911 index = priv->tx_key;
2912
2913 /* Adjust key length to a supported value */
2914 if (erq->length > SMALL_KEY_SIZE) {
2915 xlen = LARGE_KEY_SIZE;
2916 } else if (erq->length > 0) {
2917 xlen = SMALL_KEY_SIZE;
2918 } else
2919 xlen = 0;
2920
2921 /* Switch on WEP if off */
2922 if ((!enable) && (xlen > 0)) {
2923 setindex = index;
2924 enable = 1;
2925 }
2926 } else {
2927 /* Important note : if the user do "iwconfig eth0 enc off",
2928 * we will arrive there with an index of -1. This is valid
2929 * but need to be taken care off... Jean II */
2930 if ((index < 0) || (index >= ORINOCO_MAX_KEYS)) {
2931 if((index != -1) || (erq->flags == 0)) {
2932 err = -EINVAL;
2933 goto out;
2934 }
2935 } else {
2936 /* Set the index : Check that the key is valid */
2937 if(priv->keys[index].len == 0) {
2938 err = -EINVAL;
2939 goto out;
2940 }
2941 setindex = index;
2942 }
2943 }
2944
2945 if (erq->flags & IW_ENCODE_DISABLED)
2946 enable = 0;
2947 if (erq->flags & IW_ENCODE_OPEN)
2948 restricted = 0;
2949 if (erq->flags & IW_ENCODE_RESTRICTED)
2950 restricted = 1;
2951
2952 if (erq->pointer) {
2953 priv->keys[index].len = cpu_to_le16(xlen);
2954 memset(priv->keys[index].data, 0,
2955 sizeof(priv->keys[index].data));
2956 memcpy(priv->keys[index].data, keybuf, erq->length);
2957 }
2958 priv->tx_key = setindex;
2959
2960 /* Try fast key change if connected and only keys are changed */
2961 if (priv->wep_on && enable && (priv->wep_restrict == restricted) &&
2962 netif_carrier_ok(dev)) {
2963 err = __orinoco_hw_setup_wepkeys(priv);
2964 /* No need to commit if successful */
2965 goto out;
2966 }
2967
2968 priv->wep_on = enable;
2969 priv->wep_restrict = restricted;
2970
2971 out:
2972 orinoco_unlock(priv, &flags);
2973
2974 return err;
2975 }
2976
2977 static int orinoco_ioctl_getiwencode(struct net_device *dev,
2978 struct iw_request_info *info,
2979 struct iw_point *erq,
2980 char *keybuf)
2981 {
2982 struct orinoco_private *priv = netdev_priv(dev);
2983 int index = (erq->flags & IW_ENCODE_INDEX) - 1;
2984 u16 xlen = 0;
2985 unsigned long flags;
2986
2987 if (! priv->has_wep)
2988 return -EOPNOTSUPP;
2989
2990 if (orinoco_lock(priv, &flags) != 0)
2991 return -EBUSY;
2992
2993 if ((index < 0) || (index >= ORINOCO_MAX_KEYS))
2994 index = priv->tx_key;
2995
2996 erq->flags = 0;
2997 if (! priv->wep_on)
2998 erq->flags |= IW_ENCODE_DISABLED;
2999 erq->flags |= index + 1;
3000
3001 if (priv->wep_restrict)
3002 erq->flags |= IW_ENCODE_RESTRICTED;
3003 else
3004 erq->flags |= IW_ENCODE_OPEN;
3005
3006 xlen = le16_to_cpu(priv->keys[index].len);
3007
3008 erq->length = xlen;
3009
3010 memcpy(keybuf, priv->keys[index].data, ORINOCO_MAX_KEY_SIZE);
3011
3012 orinoco_unlock(priv, &flags);
3013 return 0;
3014 }
3015
3016 static int orinoco_ioctl_setessid(struct net_device *dev,
3017 struct iw_request_info *info,
3018 struct iw_point *erq,
3019 char *essidbuf)
3020 {
3021 struct orinoco_private *priv = netdev_priv(dev);
3022 unsigned long flags;
3023
3024 /* Note : ESSID is ignored in Ad-Hoc demo mode, but we can set it
3025 * anyway... - Jean II */
3026
3027 /* Hum... Should not use Wireless Extension constant (may change),
3028 * should use our own... - Jean II */
3029 if (erq->length > IW_ESSID_MAX_SIZE)
3030 return -E2BIG;
3031
3032 if (orinoco_lock(priv, &flags) != 0)
3033 return -EBUSY;
3034
3035 /* NULL the string (for NULL termination & ESSID = ANY) - Jean II */
3036 memset(priv->desired_essid, 0, sizeof(priv->desired_essid));
3037
3038 /* If not ANY, get the new ESSID */
3039 if (erq->flags) {
3040 memcpy(priv->desired_essid, essidbuf, erq->length);
3041 }
3042
3043 orinoco_unlock(priv, &flags);
3044
3045 return -EINPROGRESS; /* Call commit handler */
3046 }
3047
3048 static int orinoco_ioctl_getessid(struct net_device *dev,
3049 struct iw_request_info *info,
3050 struct iw_point *erq,
3051 char *essidbuf)
3052 {
3053 struct orinoco_private *priv = netdev_priv(dev);
3054 int active;
3055 int err = 0;
3056 unsigned long flags;
3057
3058 TRACE_ENTER(dev->name);
3059
3060 if (netif_running(dev)) {
3061 err = orinoco_hw_get_essid(priv, &active, essidbuf);
3062 if (err)
3063 return err;
3064 } else {
3065 if (orinoco_lock(priv, &flags) != 0)
3066 return -EBUSY;
3067 memcpy(essidbuf, priv->desired_essid, IW_ESSID_MAX_SIZE + 1);
3068 orinoco_unlock(priv, &flags);
3069 }
3070
3071 erq->flags = 1;
3072 erq->length = strlen(essidbuf) + 1;
3073
3074 TRACE_EXIT(dev->name);
3075
3076 return 0;
3077 }
3078
3079 static int orinoco_ioctl_setnick(struct net_device *dev,
3080 struct iw_request_info *info,
3081 struct iw_point *nrq,
3082 char *nickbuf)
3083 {
3084 struct orinoco_private *priv = netdev_priv(dev);
3085 unsigned long flags;
3086
3087 if (nrq->length > IW_ESSID_MAX_SIZE)
3088 return -E2BIG;
3089
3090 if (orinoco_lock(priv, &flags) != 0)
3091 return -EBUSY;
3092
3093 memset(priv->nick, 0, sizeof(priv->nick));
3094 memcpy(priv->nick, nickbuf, nrq->length);
3095
3096 orinoco_unlock(priv, &flags);
3097
3098 return -EINPROGRESS; /* Call commit handler */
3099 }
3100
3101 static int orinoco_ioctl_getnick(struct net_device *dev,
3102 struct iw_request_info *info,
3103 struct iw_point *nrq,
3104 char *nickbuf)
3105 {
3106 struct orinoco_private *priv = netdev_priv(dev);
3107 unsigned long flags;
3108
3109 if (orinoco_lock(priv, &flags) != 0)
3110 return -EBUSY;
3111
3112 memcpy(nickbuf, priv->nick, IW_ESSID_MAX_SIZE+1);
3113 orinoco_unlock(priv, &flags);
3114
3115 nrq->length = strlen(nickbuf)+1;
3116
3117 return 0;
3118 }
3119
3120 static int orinoco_ioctl_setfreq(struct net_device *dev,
3121 struct iw_request_info *info,
3122 struct iw_freq *frq,
3123 char *extra)
3124 {
3125 struct orinoco_private *priv = netdev_priv(dev);
3126 int chan = -1;
3127 unsigned long flags;
3128 int err = -EINPROGRESS; /* Call commit handler */
3129
3130 /* In infrastructure mode the AP sets the channel */
3131 if (priv->iw_mode == IW_MODE_INFRA)
3132 return -EBUSY;
3133
3134 if ( (frq->e == 0) && (frq->m <= 1000) ) {
3135 /* Setting by channel number */
3136 chan = frq->m;
3137 } else {
3138 /* Setting by frequency - search the table */
3139 int mult = 1;
3140 int i;
3141
3142 for (i = 0; i < (6 - frq->e); i++)
3143 mult *= 10;
3144
3145 for (i = 0; i < NUM_CHANNELS; i++)
3146 if (frq->m == (channel_frequency[i] * mult))
3147 chan = i+1;
3148 }
3149
3150 if ( (chan < 1) || (chan > NUM_CHANNELS) ||
3151 ! (priv->channel_mask & (1 << (chan-1)) ) )
3152 return -EINVAL;
3153
3154 if (orinoco_lock(priv, &flags) != 0)
3155 return -EBUSY;
3156
3157 priv->channel = chan;
3158 if (priv->iw_mode == IW_MODE_MONITOR) {
3159 /* Fast channel change - no commit if successful */
3160 hermes_t *hw = &priv->hw;
3161 err = hermes_docmd_wait(hw, HERMES_CMD_TEST |
3162 HERMES_TEST_SET_CHANNEL,
3163 chan, NULL);
3164 }
3165 orinoco_unlock(priv, &flags);
3166
3167 return err;
3168 }
3169
3170 static int orinoco_ioctl_getfreq(struct net_device *dev,
3171 struct iw_request_info *info,
3172 struct iw_freq *frq,
3173 char *extra)
3174 {
3175 struct orinoco_private *priv = netdev_priv(dev);
3176 int tmp;
3177
3178 /* Locking done in there */
3179 tmp = orinoco_hw_get_freq(priv);
3180 if (tmp < 0) {
3181 return tmp;
3182 }
3183
3184 frq->m = tmp;
3185 frq->e = 1;
3186
3187 return 0;
3188 }
3189
3190 static int orinoco_ioctl_getsens(struct net_device *dev,
3191 struct iw_request_info *info,
3192 struct iw_param *srq,
3193 char *extra)
3194 {
3195 struct orinoco_private *priv = netdev_priv(dev);
3196 hermes_t *hw = &priv->hw;
3197 u16 val;
3198 int err;
3199 unsigned long flags;
3200
3201 if (!priv->has_sensitivity)
3202 return -EOPNOTSUPP;
3203
3204 if (orinoco_lock(priv, &flags) != 0)
3205 return -EBUSY;
3206 err = hermes_read_wordrec(hw, USER_BAP,
3207 HERMES_RID_CNFSYSTEMSCALE, &val);
3208 orinoco_unlock(priv, &flags);
3209
3210 if (err)
3211 return err;
3212
3213 srq->value = val;
3214 srq->fixed = 0; /* auto */
3215
3216 return 0;
3217 }
3218
3219 static int orinoco_ioctl_setsens(struct net_device *dev,
3220 struct iw_request_info *info,
3221 struct iw_param *srq,
3222 char *extra)
3223 {
3224 struct orinoco_private *priv = netdev_priv(dev);
3225 int val = srq->value;
3226 unsigned long flags;
3227
3228 if (!priv->has_sensitivity)
3229 return -EOPNOTSUPP;
3230
3231 if ((val < 1) || (val > 3))
3232 return -EINVAL;
3233
3234 if (orinoco_lock(priv, &flags) != 0)
3235 return -EBUSY;
3236 priv->ap_density = val;
3237 orinoco_unlock(priv, &flags);
3238
3239 return -EINPROGRESS; /* Call commit handler */
3240 }
3241
3242 static int orinoco_ioctl_setrts(struct net_device *dev,
3243 struct iw_request_info *info,
3244 struct iw_param *rrq,
3245 char *extra)
3246 {
3247 struct orinoco_private *priv = netdev_priv(dev);
3248 int val = rrq->value;
3249 unsigned long flags;
3250
3251 if (rrq->disabled)
3252 val = 2347;
3253
3254 if ( (val < 0) || (val > 2347) )
3255 return -EINVAL;
3256
3257 if (orinoco_lock(priv, &flags) != 0)
3258 return -EBUSY;
3259
3260 priv->rts_thresh = val;
3261 orinoco_unlock(priv, &flags);
3262
3263 return -EINPROGRESS; /* Call commit handler */
3264 }
3265
3266 static int orinoco_ioctl_getrts(struct net_device *dev,
3267 struct iw_request_info *info,
3268 struct iw_param *rrq,
3269 char *extra)
3270 {
3271 struct orinoco_private *priv = netdev_priv(dev);
3272
3273 rrq->value = priv->rts_thresh;
3274 rrq->disabled = (rrq->value == 2347);
3275 rrq->fixed = 1;
3276
3277 return 0;
3278 }
3279
3280 static int orinoco_ioctl_setfrag(struct net_device *dev,
3281 struct iw_request_info *info,
3282 struct iw_param *frq,
3283 char *extra)
3284 {
3285 struct orinoco_private *priv = netdev_priv(dev);
3286 int err = -EINPROGRESS; /* Call commit handler */
3287 unsigned long flags;
3288
3289 if (orinoco_lock(priv, &flags) != 0)
3290 return -EBUSY;
3291
3292 if (priv->has_mwo) {
3293 if (frq->disabled)
3294 priv->mwo_robust = 0;
3295 else {
3296 if (frq->fixed)
3297 printk(KERN_WARNING "%s: Fixed fragmentation is "
3298 "not supported on this firmware. "
3299 "Using MWO robust instead.\n", dev->name);
3300 priv->mwo_robust = 1;
3301 }
3302 } else {
3303 if (frq->disabled)
3304 priv->frag_thresh = 2346;
3305 else {
3306 if ( (frq->value < 256) || (frq->value > 2346) )
3307 err = -EINVAL;
3308 else
3309 priv->frag_thresh = frq->value & ~0x1; /* must be even */
3310 }
3311 }
3312
3313 orinoco_unlock(priv, &flags);
3314
3315 return err;
3316 }
3317
3318 static int orinoco_ioctl_getfrag(struct net_device *dev,
3319 struct iw_request_info *info,
3320 struct iw_param *frq,
3321 char *extra)
3322 {
3323 struct orinoco_private *priv = netdev_priv(dev);
3324 hermes_t *hw = &priv->hw;
3325 int err;
3326 u16 val;
3327 unsigned long flags;
3328
3329 if (orinoco_lock(priv, &flags) != 0)
3330 return -EBUSY;
3331
3332 if (priv->has_mwo) {
3333 err = hermes_read_wordrec(hw, USER_BAP,
3334 HERMES_RID_CNFMWOROBUST_AGERE,
3335 &val);
3336 if (err)
3337 val = 0;
3338
3339 frq->value = val ? 2347 : 0;
3340 frq->disabled = ! val;
3341 frq->fixed = 0;
3342 } else {
3343 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFFRAGMENTATIONTHRESHOLD,
3344 &val);
3345 if (err)
3346 val = 0;
3347
3348 frq->value = val;
3349 frq->disabled = (val >= 2346);
3350 frq->fixed = 1;
3351 }
3352
3353 orinoco_unlock(priv, &flags);
3354
3355 return err;
3356 }
3357
3358 static int orinoco_ioctl_setrate(struct net_device *dev,
3359 struct iw_request_info *info,
3360 struct iw_param *rrq,
3361 char *extra)
3362 {
3363 struct orinoco_private *priv = netdev_priv(dev);
3364 int ratemode = -1;
3365 int bitrate; /* 100s of kilobits */
3366 int i;
3367 unsigned long flags;
3368
3369 /* As the user space doesn't know our highest rate, it uses -1
3370 * to ask us to set the highest rate. Test it using "iwconfig
3371 * ethX rate auto" - Jean II */
3372 if (rrq->value == -1)
3373 bitrate = 110;
3374 else {
3375 if (rrq->value % 100000)
3376 return -EINVAL;
3377 bitrate = rrq->value / 100000;
3378 }
3379
3380 if ( (bitrate != 10) && (bitrate != 20) &&
3381 (bitrate != 55) && (bitrate != 110) )
3382 return -EINVAL;
3383
3384 for (i = 0; i < BITRATE_TABLE_SIZE; i++)
3385 if ( (bitrate_table[i].bitrate == bitrate) &&
3386 (bitrate_table[i].automatic == ! rrq->fixed) ) {
3387 ratemode = i;
3388 break;
3389 }
3390
3391 if (ratemode == -1)
3392 return -EINVAL;
3393
3394 if (orinoco_lock(priv, &flags) != 0)
3395 return -EBUSY;
3396 priv->bitratemode = ratemode;
3397 orinoco_unlock(priv, &flags);
3398
3399 return -EINPROGRESS;
3400 }
3401
3402 static int orinoco_ioctl_getrate(struct net_device *dev,
3403 struct iw_request_info *info,
3404 struct iw_param *rrq,
3405 char *extra)
3406 {
3407 struct orinoco_private *priv = netdev_priv(dev);
3408 hermes_t *hw = &priv->hw;
3409 int err = 0;
3410 int ratemode;
3411 int i;
3412 u16 val;
3413 unsigned long flags;
3414
3415 if (orinoco_lock(priv, &flags) != 0)
3416 return -EBUSY;
3417
3418 ratemode = priv->bitratemode;
3419
3420 BUG_ON((ratemode < 0) || (ratemode >= BITRATE_TABLE_SIZE));
3421
3422 rrq->value = bitrate_table[ratemode].bitrate * 100000;
3423 rrq->fixed = ! bitrate_table[ratemode].automatic;
3424 rrq->disabled = 0;
3425
3426 /* If the interface is running we try to find more about the
3427 current mode */
3428 if (netif_running(dev)) {
3429 err = hermes_read_wordrec(hw, USER_BAP,
3430 HERMES_RID_CURRENTTXRATE, &val);
3431 if (err)
3432 goto out;
3433
3434 switch (priv->firmware_type) {
3435 case FIRMWARE_TYPE_AGERE: /* Lucent style rate */
3436 /* Note : in Lucent firmware, the return value of
3437 * HERMES_RID_CURRENTTXRATE is the bitrate in Mb/s,
3438 * and therefore is totally different from the
3439 * encoding of HERMES_RID_CNFTXRATECONTROL.
3440 * Don't forget that 6Mb/s is really 5.5Mb/s */
3441 if (val == 6)
3442 rrq->value = 5500000;
3443 else
3444 rrq->value = val * 1000000;
3445 break;
3446 case FIRMWARE_TYPE_INTERSIL: /* Intersil style rate */
3447 case FIRMWARE_TYPE_SYMBOL: /* Symbol style rate */
3448 for (i = 0; i < BITRATE_TABLE_SIZE; i++)
3449 if (bitrate_table[i].intersil_txratectrl == val) {
3450 ratemode = i;
3451 break;
3452 }
3453 if (i >= BITRATE_TABLE_SIZE)
3454 printk(KERN_INFO "%s: Unable to determine current bitrate (0x%04hx)\n",
3455 dev->name, val);
3456
3457 rrq->value = bitrate_table[ratemode].bitrate * 100000;
3458 break;
3459 default:
3460 BUG();
3461 }
3462 }
3463
3464 out:
3465 orinoco_unlock(priv, &flags);
3466
3467 return err;
3468 }
3469
3470 static int orinoco_ioctl_setpower(struct net_device *dev,
3471 struct iw_request_info *info,
3472 struct iw_param *prq,
3473 char *extra)
3474 {
3475 struct orinoco_private *priv = netdev_priv(dev);
3476 int err = -EINPROGRESS; /* Call commit handler */
3477 unsigned long flags;
3478
3479 if (orinoco_lock(priv, &flags) != 0)
3480 return -EBUSY;
3481
3482 if (prq->disabled) {
3483 priv->pm_on = 0;
3484 } else {
3485 switch (prq->flags & IW_POWER_MODE) {
3486 case IW_POWER_UNICAST_R:
3487 priv->pm_mcast = 0;
3488 priv->pm_on = 1;
3489 break;
3490 case IW_POWER_ALL_R:
3491 priv->pm_mcast = 1;
3492 priv->pm_on = 1;
3493 break;
3494 case IW_POWER_ON:
3495 /* No flags : but we may have a value - Jean II */
3496 break;
3497 default:
3498 err = -EINVAL;
3499 }
3500 if (err)
3501 goto out;
3502
3503 if (prq->flags & IW_POWER_TIMEOUT) {
3504 priv->pm_on = 1;
3505 priv->pm_timeout = prq->value / 1000;
3506 }
3507 if (prq->flags & IW_POWER_PERIOD) {
3508 priv->pm_on = 1;
3509 priv->pm_period = prq->value / 1000;
3510 }
3511 /* It's valid to not have a value if we are just toggling
3512 * the flags... Jean II */
3513 if(!priv->pm_on) {
3514 err = -EINVAL;
3515 goto out;
3516 }
3517 }
3518
3519 out:
3520 orinoco_unlock(priv, &flags);
3521
3522 return err;
3523 }
3524
3525 static int orinoco_ioctl_getpower(struct net_device *dev,
3526 struct iw_request_info *info,
3527 struct iw_param *prq,
3528 char *extra)
3529 {
3530 struct orinoco_private *priv = netdev_priv(dev);
3531 hermes_t *hw = &priv->hw;
3532 int err = 0;
3533 u16 enable, period, timeout, mcast;
3534 unsigned long flags;
3535
3536 if (orinoco_lock(priv, &flags) != 0)
3537 return -EBUSY;
3538
3539 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFPMENABLED, &enable);
3540 if (err)
3541 goto out;
3542
3543 err = hermes_read_wordrec(hw, USER_BAP,
3544 HERMES_RID_CNFMAXSLEEPDURATION, &period);
3545 if (err)
3546 goto out;
3547
3548 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFPMHOLDOVERDURATION, &timeout);
3549 if (err)
3550 goto out;
3551
3552 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFMULTICASTRECEIVE, &mcast);
3553 if (err)
3554 goto out;
3555
3556 prq->disabled = !enable;
3557 /* Note : by default, display the period */
3558 if ((prq->flags & IW_POWER_TYPE) == IW_POWER_TIMEOUT) {
3559 prq->flags = IW_POWER_TIMEOUT;
3560 prq->value = timeout * 1000;
3561 } else {
3562 prq->flags = IW_POWER_PERIOD;
3563 prq->value = period * 1000;
3564 }
3565 if (mcast)
3566 prq->flags |= IW_POWER_ALL_R;
3567 else
3568 prq->flags |= IW_POWER_UNICAST_R;
3569
3570 out:
3571 orinoco_unlock(priv, &flags);
3572
3573 return err;
3574 }
3575
3576 static int orinoco_ioctl_getretry(struct net_device *dev,
3577 struct iw_request_info *info,
3578 struct iw_param *rrq,
3579 char *extra)
3580 {
3581 struct orinoco_private *priv = netdev_priv(dev);
3582 hermes_t *hw = &priv->hw;
3583 int err = 0;
3584 u16 short_limit, long_limit, lifetime;
3585 unsigned long flags;
3586
3587 if (orinoco_lock(priv, &flags) != 0)
3588 return -EBUSY;
3589
3590 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_SHORTRETRYLIMIT,
3591 &short_limit);
3592 if (err)
3593 goto out;
3594
3595 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_LONGRETRYLIMIT,
3596 &long_limit);
3597 if (err)
3598 goto out;
3599
3600 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_MAXTRANSMITLIFETIME,
3601 &lifetime);
3602 if (err)
3603 goto out;
3604
3605 rrq->disabled = 0; /* Can't be disabled */
3606
3607 /* Note : by default, display the retry number */
3608 if ((rrq->flags & IW_RETRY_TYPE) == IW_RETRY_LIFETIME) {
3609 rrq->flags = IW_RETRY_LIFETIME;
3610 rrq->value = lifetime * 1000; /* ??? */
3611 } else {
3612 /* By default, display the min number */
3613 if ((rrq->flags & IW_RETRY_MAX)) {
3614 rrq->flags = IW_RETRY_LIMIT | IW_RETRY_MAX;
3615 rrq->value = long_limit;
3616 } else {
3617 rrq->flags = IW_RETRY_LIMIT;
3618 rrq->value = short_limit;
3619 if(short_limit != long_limit)
3620 rrq->flags |= IW_RETRY_MIN;
3621 }
3622 }
3623
3624 out:
3625 orinoco_unlock(priv, &flags);
3626
3627 return err;
3628 }
3629
3630 static int orinoco_ioctl_reset(struct net_device *dev,
3631 struct iw_request_info *info,
3632 void *wrqu,
3633 char *extra)
3634 {
3635 struct orinoco_private *priv = netdev_priv(dev);
3636
3637 if (! capable(CAP_NET_ADMIN))
3638 return -EPERM;
3639
3640 if (info->cmd == (SIOCIWFIRSTPRIV + 0x1)) {
3641 printk(KERN_DEBUG "%s: Forcing reset!\n", dev->name);
3642
3643 /* Firmware reset */
3644 orinoco_reset(dev);
3645 } else {
3646 printk(KERN_DEBUG "%s: Force scheduling reset!\n", dev->name);
3647
3648 schedule_work(&priv->reset_work);
3649 }
3650
3651 return 0;
3652 }
3653
3654 static int orinoco_ioctl_setibssport(struct net_device *dev,
3655 struct iw_request_info *info,
3656 void *wrqu,
3657 char *extra)
3658
3659 {
3660 struct orinoco_private *priv = netdev_priv(dev);
3661 int val = *( (int *) extra );
3662 unsigned long flags;
3663
3664 if (orinoco_lock(priv, &flags) != 0)
3665 return -EBUSY;
3666
3667 priv->ibss_port = val ;
3668
3669 /* Actually update the mode we are using */
3670 set_port_type(priv);
3671
3672 orinoco_unlock(priv, &flags);
3673 return -EINPROGRESS; /* Call commit handler */
3674 }
3675
3676 static int orinoco_ioctl_getibssport(struct net_device *dev,
3677 struct iw_request_info *info,
3678 void *wrqu,
3679 char *extra)
3680 {
3681 struct orinoco_private *priv = netdev_priv(dev);
3682 int *val = (int *) extra;
3683
3684 *val = priv->ibss_port;
3685 return 0;
3686 }
3687
3688 static int orinoco_ioctl_setport3(struct net_device *dev,
3689 struct iw_request_info *info,
3690 void *wrqu,
3691 char *extra)
3692 {
3693 struct orinoco_private *priv = netdev_priv(dev);
3694 int val = *( (int *) extra );
3695 int err = 0;
3696 unsigned long flags;
3697
3698 if (orinoco_lock(priv, &flags) != 0)
3699 return -EBUSY;
3700
3701 switch (val) {
3702 case 0: /* Try to do IEEE ad-hoc mode */
3703 if (! priv->has_ibss) {
3704 err = -EINVAL;
3705 break;
3706 }
3707 priv->prefer_port3 = 0;
3708
3709 break;
3710
3711 case 1: /* Try to do Lucent proprietary ad-hoc mode */
3712 if (! priv->has_port3) {
3713 err = -EINVAL;
3714 break;
3715 }
3716 priv->prefer_port3 = 1;
3717 break;
3718
3719 default:
3720 err = -EINVAL;
3721 }
3722
3723 if (! err) {
3724 /* Actually update the mode we are using */
3725 set_port_type(priv);
3726 err = -EINPROGRESS;
3727 }
3728
3729 orinoco_unlock(priv, &flags);
3730
3731 return err;
3732 }
3733
3734 static int orinoco_ioctl_getport3(struct net_device *dev,
3735 struct iw_request_info *info,
3736 void *wrqu,
3737 char *extra)
3738 {
3739 struct orinoco_private *priv = netdev_priv(dev);
3740 int *val = (int *) extra;
3741
3742 *val = priv->prefer_port3;
3743 return 0;
3744 }
3745
3746 static int orinoco_ioctl_setpreamble(struct net_device *dev,
3747 struct iw_request_info *info,
3748 void *wrqu,
3749 char *extra)
3750 {
3751 struct orinoco_private *priv = netdev_priv(dev);
3752 unsigned long flags;
3753 int val;
3754
3755 if (! priv->has_preamble)
3756 return -EOPNOTSUPP;
3757
3758 /* 802.11b has recently defined some short preamble.
3759 * Basically, the Phy header has been reduced in size.
3760 * This increase performance, especially at high rates
3761 * (the preamble is transmitted at 1Mb/s), unfortunately
3762 * this give compatibility troubles... - Jean II */
3763 val = *( (int *) extra );
3764
3765 if (orinoco_lock(priv, &flags) != 0)
3766 return -EBUSY;
3767
3768 if (val)
3769 priv->preamble = 1;
3770 else
3771 priv->preamble = 0;
3772
3773 orinoco_unlock(priv, &flags);
3774
3775 return -EINPROGRESS; /* Call commit handler */
3776 }
3777
3778 static int orinoco_ioctl_getpreamble(struct net_device *dev,
3779 struct iw_request_info *info,
3780 void *wrqu,
3781 char *extra)
3782 {
3783 struct orinoco_private *priv = netdev_priv(dev);
3784 int *val = (int *) extra;
3785
3786 if (! priv->has_preamble)
3787 return -EOPNOTSUPP;
3788
3789 *val = priv->preamble;
3790 return 0;
3791 }
3792
3793 /* ioctl interface to hermes_read_ltv()
3794 * To use with iwpriv, pass the RID as the token argument, e.g.
3795 * iwpriv get_rid [0xfc00]
3796 * At least Wireless Tools 25 is required to use iwpriv.
3797 * For Wireless Tools 25 and 26 append "dummy" are the end. */
3798 static int orinoco_ioctl_getrid(struct net_device *dev,
3799 struct iw_request_info *info,
3800 struct iw_point *data,
3801 char *extra)
3802 {
3803 struct orinoco_private *priv = netdev_priv(dev);
3804 hermes_t *hw = &priv->hw;
3805 int rid = data->flags;
3806 u16 length;
3807 int err;
3808 unsigned long flags;
3809
3810 /* It's a "get" function, but we don't want users to access the
3811 * WEP key and other raw firmware data */
3812 if (! capable(CAP_NET_ADMIN))
3813 return -EPERM;
3814
3815 if (rid < 0xfc00 || rid > 0xffff)
3816 return -EINVAL;
3817
3818 if (orinoco_lock(priv, &flags) != 0)
3819 return -EBUSY;
3820
3821 err = hermes_read_ltv(hw, USER_BAP, rid, MAX_RID_LEN, &length,
3822 extra);
3823 if (err)
3824 goto out;
3825
3826 data->length = min_t(u16, HERMES_RECLEN_TO_BYTES(length),
3827 MAX_RID_LEN);
3828
3829 out:
3830 orinoco_unlock(priv, &flags);
3831 return err;
3832 }
3833
3834 /* Spy is used for link quality/strength measurements in Ad-Hoc mode
3835 * Jean II */
3836 static int orinoco_ioctl_setspy(struct net_device *dev,
3837 struct iw_request_info *info,
3838 struct iw_point *srq,
3839 char *extra)
3840
3841 {
3842 struct orinoco_private *priv = netdev_priv(dev);
3843 struct sockaddr *address = (struct sockaddr *) extra;
3844 int number = srq->length;
3845 int i;
3846 unsigned long flags;
3847
3848 /* Make sure nobody mess with the structure while we do */
3849 if (orinoco_lock(priv, &flags) != 0)
3850 return -EBUSY;
3851
3852 /* orinoco_lock() doesn't disable interrupts, so make sure the
3853 * interrupt rx path don't get confused while we copy */
3854 priv->spy_number = 0;
3855
3856 if (number > 0) {
3857 /* Extract the addresses */
3858 for (i = 0; i < number; i++)
3859 memcpy(priv->spy_address[i], address[i].sa_data,
3860 ETH_ALEN);
3861 /* Reset stats */
3862 memset(priv->spy_stat, 0,
3863 sizeof(struct iw_quality) * IW_MAX_SPY);
3864 /* Set number of addresses */
3865 priv->spy_number = number;
3866 }
3867
3868 /* Now, let the others play */
3869 orinoco_unlock(priv, &flags);
3870
3871 /* Do NOT call commit handler */
3872 return 0;
3873 }
3874
3875 static int orinoco_ioctl_getspy(struct net_device *dev,
3876 struct iw_request_info *info,
3877 struct iw_point *srq,
3878 char *extra)
3879 {
3880 struct orinoco_private *priv = netdev_priv(dev);
3881 struct sockaddr *address = (struct sockaddr *) extra;
3882 int number;
3883 int i;
3884 unsigned long flags;
3885
3886 if (orinoco_lock(priv, &flags) != 0)
3887 return -EBUSY;
3888
3889 number = priv->spy_number;
3890 /* Create address struct */
3891 for (i = 0; i < number; i++) {
3892 memcpy(address[i].sa_data, priv->spy_address[i], ETH_ALEN);
3893 address[i].sa_family = AF_UNIX;
3894 }
3895 if (number > 0) {
3896 /* Create address struct */
3897 for (i = 0; i < number; i++) {
3898 memcpy(address[i].sa_data, priv->spy_address[i],
3899 ETH_ALEN);
3900 address[i].sa_family = AF_UNIX;
3901 }
3902 /* Copy stats */
3903 /* In theory, we should disable irqs while copying the stats
3904 * because the rx path might update it in the middle...
3905 * Bah, who care ? - Jean II */
3906 memcpy(extra + (sizeof(struct sockaddr) * number),
3907 priv->spy_stat, sizeof(struct iw_quality) * number);
3908 }
3909 /* Reset updated flags. */
3910 for (i = 0; i < number; i++)
3911 priv->spy_stat[i].updated = 0;
3912
3913 orinoco_unlock(priv, &flags);
3914
3915 srq->length = number;
3916
3917 return 0;
3918 }
3919
3920 /* Trigger a scan (look for other cells in the vicinity */
3921 static int orinoco_ioctl_setscan(struct net_device *dev,
3922 struct iw_request_info *info,
3923 struct iw_param *srq,
3924 char *extra)
3925 {
3926 struct orinoco_private *priv = netdev_priv(dev);
3927 hermes_t *hw = &priv->hw;
3928 int err = 0;
3929 unsigned long flags;
3930
3931 /* Note : you may have realised that, as this is a SET operation,
3932 * this is priviledged and therefore a normal user can't
3933 * perform scanning.
3934 * This is not an error, while the device perform scanning,
3935 * traffic doesn't flow, so it's a perfect DoS...
3936 * Jean II */
3937
3938 if (orinoco_lock(priv, &flags) != 0)
3939 return -EBUSY;
3940
3941 /* Scanning with port 0 disabled would fail */
3942 if (!netif_running(dev)) {
3943 err = -ENETDOWN;
3944 goto out;
3945 }
3946
3947 /* In monitor mode, the scan results are always empty.
3948 * Probe responses are passed to the driver as received
3949 * frames and could be processed in software. */
3950 if (priv->iw_mode == IW_MODE_MONITOR) {
3951 err = -EOPNOTSUPP;
3952 goto out;
3953 }
3954
3955 /* Note : because we don't lock out the irq handler, the way
3956 * we access scan variables in priv is critical.
3957 * o scan_inprogress : not touched by irq handler
3958 * o scan_mode : not touched by irq handler
3959 * o scan_result : irq is strict producer, non-irq is strict
3960 * consumer.
3961 * o scan_len : synchronised with scan_result
3962 * Before modifying anything on those variables, please think hard !
3963 * Jean II */
3964
3965 /* If there is still some left-over scan results, get rid of it */
3966 if (priv->scan_result != NULL) {
3967 /* What's likely is that a client did crash or was killed
3968 * between triggering the scan request and reading the
3969 * results, so we need to reset everything.
3970 * Some clients that are too slow may suffer from that...
3971 * Jean II */
3972 kfree(priv->scan_result);
3973 priv->scan_result = NULL;
3974 }
3975
3976 /* Save flags */
3977 priv->scan_mode = srq->flags;
3978
3979 /* Always trigger scanning, even if it's in progress.
3980 * This way, if the info frame get lost, we will recover somewhat
3981 * gracefully - Jean II */
3982
3983 if (priv->has_hostscan) {
3984 switch (priv->firmware_type) {
3985 case FIRMWARE_TYPE_SYMBOL:
3986 err = hermes_write_wordrec(hw, USER_BAP,
3987 HERMES_RID_CNFHOSTSCAN_SYMBOL,
3988 HERMES_HOSTSCAN_SYMBOL_ONCE |
3989 HERMES_HOSTSCAN_SYMBOL_BCAST);
3990 break;
3991 case FIRMWARE_TYPE_INTERSIL: {
3992 u16 req[3];
3993
3994 req[0] = cpu_to_le16(0x3fff); /* All channels */
3995 req[1] = cpu_to_le16(0x0001); /* rate 1 Mbps */
3996 req[2] = 0; /* Any ESSID */
3997 err = HERMES_WRITE_RECORD(hw, USER_BAP,
3998 HERMES_RID_CNFHOSTSCAN, &req);
3999 }
4000 break;
4001 case FIRMWARE_TYPE_AGERE:
4002 err = hermes_write_wordrec(hw, USER_BAP,
4003 HERMES_RID_CNFSCANSSID_AGERE,
4004 0); /* Any ESSID */
4005 if (err)
4006 break;
4007
4008 err = hermes_inquire(hw, HERMES_INQ_SCAN);
4009 break;
4010 }
4011 } else
4012 err = hermes_inquire(hw, HERMES_INQ_SCAN);
4013
4014 /* One more client */
4015 if (! err)
4016 priv->scan_inprogress = 1;
4017
4018 out:
4019 orinoco_unlock(priv, &flags);
4020 return err;
4021 }
4022
4023 /* Translate scan data returned from the card to a card independant
4024 * format that the Wireless Tools will understand - Jean II */
4025 static inline int orinoco_translate_scan(struct net_device *dev,
4026 char *buffer,
4027 char *scan,
4028 int scan_len)
4029 {
4030 struct orinoco_private *priv = netdev_priv(dev);
4031 int offset; /* In the scan data */
4032 union hermes_scan_info *atom;
4033 int atom_len;
4034 u16 capabilities;
4035 u16 channel;
4036 struct iw_event iwe; /* Temporary buffer */
4037 char * current_ev = buffer;
4038 char * end_buf = buffer + IW_SCAN_MAX_DATA;
4039
4040 switch (priv->firmware_type) {
4041 case FIRMWARE_TYPE_AGERE:
4042 atom_len = sizeof(struct agere_scan_apinfo);
4043 offset = 0;
4044 break;
4045 case FIRMWARE_TYPE_SYMBOL:
4046 /* Lack of documentation necessitates this hack.
4047 * Different firmwares have 68 or 76 byte long atoms.
4048 * We try modulo first. If the length divides by both,
4049 * we check what would be the channel in the second
4050 * frame for a 68-byte atom. 76-byte atoms have 0 there.
4051 * Valid channel cannot be 0. */
4052 if (scan_len % 76)
4053 atom_len = 68;
4054 else if (scan_len % 68)
4055 atom_len = 76;
4056 else if (scan_len >= 1292 && scan[68] == 0)
4057 atom_len = 76;
4058 else
4059 atom_len = 68;
4060 offset = 0;
4061 break;
4062 case FIRMWARE_TYPE_INTERSIL:
4063 offset = 4;
4064 if (priv->has_hostscan)
4065 atom_len = scan[0] + (scan[1] << 8);
4066 else
4067 atom_len = offsetof(struct prism2_scan_apinfo, atim);
4068 break;
4069 default:
4070 return 0;
4071 }
4072
4073 /* Check that we got an whole number of atoms */
4074 if ((scan_len - offset) % atom_len) {
4075 printk(KERN_ERR "%s: Unexpected scan data length %d, "
4076 "atom_len %d, offset %d\n", dev->name, scan_len,
4077 atom_len, offset);
4078 return 0;
4079 }
4080
4081 /* Read the entries one by one */
4082 for (; offset + atom_len <= scan_len; offset += atom_len) {
4083 /* Get next atom */
4084 atom = (union hermes_scan_info *) (scan + offset);
4085
4086 /* First entry *MUST* be the AP MAC address */
4087 iwe.cmd = SIOCGIWAP;
4088 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
4089 memcpy(iwe.u.ap_addr.sa_data, atom->a.bssid, ETH_ALEN);
4090 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_ADDR_LEN);
4091
4092 /* Other entries will be displayed in the order we give them */
4093
4094 /* Add the ESSID */
4095 iwe.u.data.length = le16_to_cpu(atom->a.essid_len);
4096 if (iwe.u.data.length > 32)
4097 iwe.u.data.length = 32;
4098 iwe.cmd = SIOCGIWESSID;
4099 iwe.u.data.flags = 1;
4100 current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe, atom->a.essid);
4101
4102 /* Add mode */
4103 iwe.cmd = SIOCGIWMODE;
4104 capabilities = le16_to_cpu(atom->a.capabilities);
4105 if (capabilities & 0x3) {
4106 if (capabilities & 0x1)
4107 iwe.u.mode = IW_MODE_MASTER;
4108 else
4109 iwe.u.mode = IW_MODE_ADHOC;
4110 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_UINT_LEN);
4111 }
4112
4113 channel = atom->s.channel;
4114 if ( (channel >= 1) && (channel <= NUM_CHANNELS) ) {
4115 /* Add frequency */
4116 iwe.cmd = SIOCGIWFREQ;
4117 iwe.u.freq.m = channel_frequency[channel-1] * 100000;
4118 iwe.u.freq.e = 1;
4119 current_ev = iwe_stream_add_event(current_ev, end_buf,
4120 &iwe, IW_EV_FREQ_LEN);
4121 }
4122
4123 /* Add quality statistics */
4124 iwe.cmd = IWEVQUAL;
4125 iwe.u.qual.updated = 0x10; /* no link quality */
4126 iwe.u.qual.level = (__u8) le16_to_cpu(atom->a.level) - 0x95;
4127 iwe.u.qual.noise = (__u8) le16_to_cpu(atom->a.noise) - 0x95;
4128 /* Wireless tools prior to 27.pre22 will show link quality
4129 * anyway, so we provide a reasonable value. */
4130 if (iwe.u.qual.level > iwe.u.qual.noise)
4131 iwe.u.qual.qual = iwe.u.qual.level - iwe.u.qual.noise;
4132 else
4133 iwe.u.qual.qual = 0;
4134 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_QUAL_LEN);
4135
4136 /* Add encryption capability */
4137 iwe.cmd = SIOCGIWENCODE;
4138 if (capabilities & 0x10)
4139 iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
4140 else
4141 iwe.u.data.flags = IW_ENCODE_DISABLED;
4142 iwe.u.data.length = 0;
4143 current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe, atom->a.essid);
4144
4145 /* Bit rate is not available in Lucent/Agere firmwares */
4146 if (priv->firmware_type != FIRMWARE_TYPE_AGERE) {
4147 char * current_val = current_ev + IW_EV_LCP_LEN;
4148 int i;
4149 int step;
4150
4151 if (priv->firmware_type == FIRMWARE_TYPE_SYMBOL)
4152 step = 2;
4153 else
4154 step = 1;
4155
4156 iwe.cmd = SIOCGIWRATE;
4157 /* Those two flags are ignored... */
4158 iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
4159 /* Max 10 values */
4160 for (i = 0; i < 10; i += step) {
4161 /* NULL terminated */
4162 if (atom->p.rates[i] == 0x0)
4163 break;
4164 /* Bit rate given in 500 kb/s units (+ 0x80) */
4165 iwe.u.bitrate.value = ((atom->p.rates[i] & 0x7f) * 500000);
4166 current_val = iwe_stream_add_value(current_ev, current_val,
4167 end_buf, &iwe,
4168 IW_EV_PARAM_LEN);
4169 }
4170 /* Check if we added any event */
4171 if ((current_val - current_ev) > IW_EV_LCP_LEN)
4172 current_ev = current_val;
4173 }
4174
4175 /* The other data in the scan result are not really
4176 * interesting, so for now drop it - Jean II */
4177 }
4178 return current_ev - buffer;
4179 }
4180
4181 /* Return results of a scan */
4182 static int orinoco_ioctl_getscan(struct net_device *dev,
4183 struct iw_request_info *info,
4184 struct iw_point *srq,
4185 char *extra)
4186 {
4187 struct orinoco_private *priv = netdev_priv(dev);
4188 int err = 0;
4189 unsigned long flags;
4190
4191 if (orinoco_lock(priv, &flags) != 0)
4192 return -EBUSY;
4193
4194 /* If no results yet, ask to try again later */
4195 if (priv->scan_result == NULL) {
4196 if (priv->scan_inprogress)
4197 /* Important note : we don't want to block the caller
4198 * until results are ready for various reasons.
4199 * First, managing wait queues is complex and racy.
4200 * Second, we grab some rtnetlink lock before comming
4201 * here (in dev_ioctl()).
4202 * Third, we generate an Wireless Event, so the
4203 * caller can wait itself on that - Jean II */
4204 err = -EAGAIN;
4205 else
4206 /* Client error, no scan results...
4207 * The caller need to restart the scan. */
4208 err = -ENODATA;
4209 } else {
4210 /* We have some results to push back to user space */
4211
4212 /* Translate to WE format */
4213 srq->length = orinoco_translate_scan(dev, extra,
4214 priv->scan_result,
4215 priv->scan_len);
4216
4217 /* Return flags */
4218 srq->flags = (__u16) priv->scan_mode;
4219
4220 /* Results are here, so scan no longer in progress */
4221 priv->scan_inprogress = 0;
4222
4223 /* In any case, Scan results will be cleaned up in the
4224 * reset function and when exiting the driver.
4225 * The person triggering the scanning may never come to
4226 * pick the results, so we need to do it in those places.
4227 * Jean II */
4228
4229 #ifdef SCAN_SINGLE_READ
4230 /* If you enable this option, only one client (the first
4231 * one) will be able to read the result (and only one
4232 * time). If there is multiple concurent clients that
4233 * want to read scan results, this behavior is not
4234 * advisable - Jean II */
4235 kfree(priv->scan_result);
4236 priv->scan_result = NULL;
4237 #endif /* SCAN_SINGLE_READ */
4238 /* Here, if too much time has elapsed since last scan,
4239 * we may want to clean up scan results... - Jean II */
4240 }
4241
4242 orinoco_unlock(priv, &flags);
4243 return err;
4244 }
4245
4246 /* Commit handler, called after set operations */
4247 static int orinoco_ioctl_commit(struct net_device *dev,
4248 struct iw_request_info *info,
4249 void *wrqu,
4250 char *extra)
4251 {
4252 struct orinoco_private *priv = netdev_priv(dev);
4253 struct hermes *hw = &priv->hw;
4254 unsigned long flags;
4255 int err = 0;
4256
4257 if (!priv->open)
4258 return 0;
4259
4260 if (priv->broken_disableport) {
4261 orinoco_reset(dev);
4262 return 0;
4263 }
4264
4265 if (orinoco_lock(priv, &flags) != 0)
4266 return err;
4267
4268 err = hermes_disable_port(hw, 0);
4269 if (err) {
4270 printk(KERN_WARNING "%s: Unable to disable port "
4271 "while reconfiguring card\n", dev->name);
4272 priv->broken_disableport = 1;
4273 goto out;
4274 }
4275
4276 err = __orinoco_program_rids(dev);
4277 if (err) {
4278 printk(KERN_WARNING "%s: Unable to reconfigure card\n",
4279 dev->name);
4280 goto out;
4281 }
4282
4283 err = hermes_enable_port(hw, 0);
4284 if (err) {
4285 printk(KERN_WARNING "%s: Unable to enable port while reconfiguring card\n",
4286 dev->name);
4287 goto out;
4288 }
4289
4290 out:
4291 if (err) {
4292 printk(KERN_WARNING "%s: Resetting instead...\n", dev->name);
4293 schedule_work(&priv->reset_work);
4294 err = 0;
4295 }
4296
4297 orinoco_unlock(priv, &flags);
4298 return err;
4299 }
4300
4301 static const struct iw_priv_args orinoco_privtab[] = {
4302 { SIOCIWFIRSTPRIV + 0x0, 0, 0, "force_reset" },
4303 { SIOCIWFIRSTPRIV + 0x1, 0, 0, "card_reset" },
4304 { SIOCIWFIRSTPRIV + 0x2, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
4305 0, "set_port3" },
4306 { SIOCIWFIRSTPRIV + 0x3, 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
4307 "get_port3" },
4308 { SIOCIWFIRSTPRIV + 0x4, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
4309 0, "set_preamble" },
4310 { SIOCIWFIRSTPRIV + 0x5, 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
4311 "get_preamble" },
4312 { SIOCIWFIRSTPRIV + 0x6, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
4313 0, "set_ibssport" },
4314 { SIOCIWFIRSTPRIV + 0x7, 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
4315 "get_ibssport" },
4316 { SIOCIWFIRSTPRIV + 0x9, 0, IW_PRIV_TYPE_BYTE | MAX_RID_LEN,
4317 "get_rid" },
4318 };
4319
4320
4321 /*
4322 * Structures to export the Wireless Handlers
4323 */
4324
4325 static const iw_handler orinoco_handler[] = {
4326 [SIOCSIWCOMMIT-SIOCIWFIRST] = (iw_handler) orinoco_ioctl_commit,
4327 [SIOCGIWNAME -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getname,
4328 [SIOCSIWFREQ -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setfreq,
4329 [SIOCGIWFREQ -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getfreq,
4330 [SIOCSIWMODE -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setmode,
4331 [SIOCGIWMODE -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getmode,
4332 [SIOCSIWSENS -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setsens,
4333 [SIOCGIWSENS -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getsens,
4334 [SIOCGIWRANGE -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getiwrange,
4335 [SIOCSIWSPY -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setspy,
4336 [SIOCGIWSPY -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getspy,
4337 [SIOCSIWAP -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setwap,
4338 [SIOCGIWAP -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getwap,
4339 [SIOCSIWSCAN -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setscan,
4340 [SIOCGIWSCAN -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getscan,
4341 [SIOCSIWESSID -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setessid,
4342 [SIOCGIWESSID -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getessid,
4343 [SIOCSIWNICKN -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setnick,
4344 [SIOCGIWNICKN -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getnick,
4345 [SIOCSIWRATE -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setrate,
4346 [SIOCGIWRATE -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getrate,
4347 [SIOCSIWRTS -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setrts,
4348 [SIOCGIWRTS -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getrts,
4349 [SIOCSIWFRAG -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setfrag,
4350 [SIOCGIWFRAG -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getfrag,
4351 [SIOCGIWRETRY -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getretry,
4352 [SIOCSIWENCODE-SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setiwencode,
4353 [SIOCGIWENCODE-SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getiwencode,
4354 [SIOCSIWPOWER -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setpower,
4355 [SIOCGIWPOWER -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getpower,
4356 };
4357
4358
4359 /*
4360 Added typecasting since we no longer use iwreq_data -- Moustafa
4361 */
4362 static const iw_handler orinoco_private_handler[] = {
4363 [0] = (iw_handler) orinoco_ioctl_reset,
4364 [1] = (iw_handler) orinoco_ioctl_reset,
4365 [2] = (iw_handler) orinoco_ioctl_setport3,
4366 [3] = (iw_handler) orinoco_ioctl_getport3,
4367 [4] = (iw_handler) orinoco_ioctl_setpreamble,
4368 [5] = (iw_handler) orinoco_ioctl_getpreamble,
4369 [6] = (iw_handler) orinoco_ioctl_setibssport,
4370 [7] = (iw_handler) orinoco_ioctl_getibssport,
4371 [9] = (iw_handler) orinoco_ioctl_getrid,
4372 };
4373
4374 static const struct iw_handler_def orinoco_handler_def = {
4375 .num_standard = ARRAY_SIZE(orinoco_handler),
4376 .num_private = ARRAY_SIZE(orinoco_private_handler),
4377 .num_private_args = ARRAY_SIZE(orinoco_privtab),
4378 .standard = orinoco_handler,
4379 .private = orinoco_private_handler,
4380 .private_args = orinoco_privtab,
4381 };
4382
4383 static void orinoco_get_drvinfo(struct net_device *dev,
4384 struct ethtool_drvinfo *info)
4385 {
4386 struct orinoco_private *priv = netdev_priv(dev);
4387
4388 strncpy(info->driver, DRIVER_NAME, sizeof(info->driver) - 1);
4389 strncpy(info->version, DRIVER_VERSION, sizeof(info->version) - 1);
4390 strncpy(info->fw_version, priv->fw_name, sizeof(info->fw_version) - 1);
4391 if (dev->class_dev.dev)
4392 strncpy(info->bus_info, dev->class_dev.dev->bus_id,
4393 sizeof(info->bus_info) - 1);
4394 else
4395 snprintf(info->bus_info, sizeof(info->bus_info) - 1,
4396 "PCMCIA %p", priv->hw.iobase);
4397 }
4398
4399 static struct ethtool_ops orinoco_ethtool_ops = {
4400 .get_drvinfo = orinoco_get_drvinfo,
4401 .get_link = ethtool_op_get_link,
4402 };
4403
4404 /********************************************************************/
4405 /* Debugging */
4406 /********************************************************************/
4407
4408 #if 0
4409 static void show_rx_frame(struct orinoco_rxframe_hdr *frame)
4410 {
4411 printk(KERN_DEBUG "RX descriptor:\n");
4412 printk(KERN_DEBUG " status = 0x%04x\n", frame->desc.status);
4413 printk(KERN_DEBUG " time = 0x%08x\n", frame->desc.time);
4414 printk(KERN_DEBUG " silence = 0x%02x\n", frame->desc.silence);
4415 printk(KERN_DEBUG " signal = 0x%02x\n", frame->desc.signal);
4416 printk(KERN_DEBUG " rate = 0x%02x\n", frame->desc.rate);
4417 printk(KERN_DEBUG " rxflow = 0x%02x\n", frame->desc.rxflow);
4418 printk(KERN_DEBUG " reserved = 0x%08x\n", frame->desc.reserved);
4419
4420 printk(KERN_DEBUG "IEEE 802.11 header:\n");
4421 printk(KERN_DEBUG " frame_ctl = 0x%04x\n",
4422 frame->p80211.frame_ctl);
4423 printk(KERN_DEBUG " duration_id = 0x%04x\n",
4424 frame->p80211.duration_id);
4425 printk(KERN_DEBUG " addr1 = %02x:%02x:%02x:%02x:%02x:%02x\n",
4426 frame->p80211.addr1[0], frame->p80211.addr1[1],
4427 frame->p80211.addr1[2], frame->p80211.addr1[3],
4428 frame->p80211.addr1[4], frame->p80211.addr1[5]);
4429 printk(KERN_DEBUG " addr2 = %02x:%02x:%02x:%02x:%02x:%02x\n",
4430 frame->p80211.addr2[0], frame->p80211.addr2[1],
4431 frame->p80211.addr2[2], frame->p80211.addr2[3],
4432 frame->p80211.addr2[4], frame->p80211.addr2[5]);
4433 printk(KERN_DEBUG " addr3 = %02x:%02x:%02x:%02x:%02x:%02x\n",
4434 frame->p80211.addr3[0], frame->p80211.addr3[1],
4435 frame->p80211.addr3[2], frame->p80211.addr3[3],
4436 frame->p80211.addr3[4], frame->p80211.addr3[5]);
4437 printk(KERN_DEBUG " seq_ctl = 0x%04x\n",
4438 frame->p80211.seq_ctl);
4439 printk(KERN_DEBUG " addr4 = %02x:%02x:%02x:%02x:%02x:%02x\n",
4440 frame->p80211.addr4[0], frame->p80211.addr4[1],
4441 frame->p80211.addr4[2], frame->p80211.addr4[3],
4442 frame->p80211.addr4[4], frame->p80211.addr4[5]);
4443 printk(KERN_DEBUG " data_len = 0x%04x\n",
4444 frame->p80211.data_len);
4445
4446 printk(KERN_DEBUG "IEEE 802.3 header:\n");
4447 printk(KERN_DEBUG " dest = %02x:%02x:%02x:%02x:%02x:%02x\n",
4448 frame->p8023.h_dest[0], frame->p8023.h_dest[1],
4449 frame->p8023.h_dest[2], frame->p8023.h_dest[3],
4450 frame->p8023.h_dest[4], frame->p8023.h_dest[5]);
4451 printk(KERN_DEBUG " src = %02x:%02x:%02x:%02x:%02x:%02x\n",
4452 frame->p8023.h_source[0], frame->p8023.h_source[1],
4453 frame->p8023.h_source[2], frame->p8023.h_source[3],
4454 frame->p8023.h_source[4], frame->p8023.h_source[5]);
4455 printk(KERN_DEBUG " len = 0x%04x\n", frame->p8023.h_proto);
4456
4457 printk(KERN_DEBUG "IEEE 802.2 LLC/SNAP header:\n");
4458 printk(KERN_DEBUG " DSAP = 0x%02x\n", frame->p8022.dsap);
4459 printk(KERN_DEBUG " SSAP = 0x%02x\n", frame->p8022.ssap);
4460 printk(KERN_DEBUG " ctrl = 0x%02x\n", frame->p8022.ctrl);
4461 printk(KERN_DEBUG " OUI = %02x:%02x:%02x\n",
4462 frame->p8022.oui[0], frame->p8022.oui[1], frame->p8022.oui[2]);
4463 printk(KERN_DEBUG " ethertype = 0x%04x\n", frame->ethertype);
4464 }
4465 #endif /* 0 */
4466
4467 /********************************************************************/
4468 /* Module initialization */
4469 /********************************************************************/
4470
4471 EXPORT_SYMBOL(alloc_orinocodev);
4472 EXPORT_SYMBOL(free_orinocodev);
4473
4474 EXPORT_SYMBOL(__orinoco_up);
4475 EXPORT_SYMBOL(__orinoco_down);
4476 EXPORT_SYMBOL(orinoco_reinit_firmware);
4477
4478 EXPORT_SYMBOL(orinoco_interrupt);
4479
4480 /* Can't be declared "const" or the whole __initdata section will
4481 * become const */
4482 static char version[] __initdata = DRIVER_NAME " " DRIVER_VERSION
4483 " (David Gibson <hermes@gibson.dropbear.id.au>, "
4484 "Pavel Roskin <proski@gnu.org>, et al)";
4485
4486 static int __init init_orinoco(void)
4487 {
4488 printk(KERN_DEBUG "%s\n", version);
4489 return 0;
4490 }
4491
4492 static void __exit exit_orinoco(void)
4493 {
4494 }
4495
4496 module_init(init_orinoco);
4497 module_exit(exit_orinoco);
Linux kernel - Deliverables
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