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PCIE: check and return bus_register errors
[linux-2.6/next.git] / drivers / net / wireless / orinoco.c
blob1840b69e3cb5a6c5c5dfd3a04d239d50ac335442
1 /* orinoco.c - (formerly known as dldwd_cs.c and orinoco_cs.c)
2 *
3 * A driver for Hermes or Prism 2 chipset based PCMCIA wireless
4 * adaptors, with Lucent/Agere, Intersil or Symbol firmware.
5 *
6 * Current maintainers (as of 29 September 2003) are:
7 * Pavel Roskin <proski AT gnu.org>
8 * and David Gibson <hermes AT gibson.dropbear.id.au>
9 *
10 * (C) Copyright David Gibson, IBM Corporation 2001-2003.
11 * Copyright (C) 2000 David Gibson, Linuxcare Australia.
12 * With some help from :
13 * Copyright (C) 2001 Jean Tourrilhes, HP Labs
14 * Copyright (C) 2001 Benjamin Herrenschmidt
15 *
16 * Based on dummy_cs.c 1.27 2000/06/12 21:27:25
17 *
18 * Portions based on wvlan_cs.c 1.0.6, Copyright Andreas Neuhaus <andy
19 * AT fasta.fh-dortmund.de>
20 * http://www.stud.fh-dortmund.de/~andy/wvlan/
21 *
22 * The contents of this file are subject to the Mozilla Public License
23 * Version 1.1 (the "License"); you may not use this file except in
24 * compliance with the License. You may obtain a copy of the License
25 * at http://www.mozilla.org/MPL/
26 *
27 * Software distributed under the License is distributed on an "AS IS"
28 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
29 * the License for the specific language governing rights and
30 * limitations under the License.
31 *
32 * The initial developer of the original code is David A. Hinds
33 * <dahinds AT users.sourceforge.net>. Portions created by David
34 * A. Hinds are Copyright (C) 1999 David A. Hinds. All Rights
35 * Reserved.
36 *
37 * Alternatively, the contents of this file may be used under the
38 * terms of the GNU General Public License version 2 (the "GPL"), in
39 * which case the provisions of the GPL are applicable instead of the
40 * above. If you wish to allow the use of your version of this file
41 * only under the terms of the GPL and not to allow others to use your
42 * version of this file under the MPL, indicate your decision by
43 * deleting the provisions above and replace them with the notice and
44 * other provisions required by the GPL. If you do not delete the
45 * provisions above, a recipient may use your version of this file
46 * under either the MPL or the GPL. */
47
48 /*
49 * TODO
50 * o Handle de-encapsulation within network layer, provide 802.11
51 * headers (patch from Thomas 'Dent' Mirlacher)
52 * o Fix possible races in SPY handling.
53 * o Disconnect wireless extensions from fundamental configuration.
54 * o (maybe) Software WEP support (patch from Stano Meduna).
55 * o (maybe) Use multiple Tx buffers - driver handling queue
56 * rather than firmware.
57 */
58
59 /* Locking and synchronization:
60 *
61 * The basic principle is that everything is serialized through a
62 * single spinlock, priv->lock. The lock is used in user, bh and irq
63 * context, so when taken outside hardirq context it should always be
64 * taken with interrupts disabled. The lock protects both the
65 * hardware and the struct orinoco_private.
66 *
67 * Another flag, priv->hw_unavailable indicates that the hardware is
68 * unavailable for an extended period of time (e.g. suspended, or in
69 * the middle of a hard reset). This flag is protected by the
70 * spinlock. All code which touches the hardware should check the
71 * flag after taking the lock, and if it is set, give up on whatever
72 * they are doing and drop the lock again. The orinoco_lock()
73 * function handles this (it unlocks and returns -EBUSY if
74 * hw_unavailable is non-zero).
75 */
76
77 #define DRIVER_NAME "orinoco"
78
79 #include <linux/module.h>
80 #include <linux/kernel.h>
81 #include <linux/init.h>
82 #include <linux/netdevice.h>
83 #include <linux/etherdevice.h>
84 #include <linux/ethtool.h>
85 #include <linux/if_arp.h>
86 #include <linux/wireless.h>
87 #include <net/iw_handler.h>
88 #include <net/ieee80211.h>
89
90 #include "hermes_rid.h"
91 #include "orinoco.h"
92
93 /********************************************************************/
94 /* Module information */
95 /********************************************************************/
96
97 MODULE_AUTHOR("Pavel Roskin <proski@gnu.org> & David Gibson <hermes@gibson.dropbear.id.au>");
98 MODULE_DESCRIPTION("Driver for Lucent Orinoco, Prism II based and similar wireless cards");
99 MODULE_LICENSE("Dual MPL/GPL");
100
101 /* Level of debugging. Used in the macros in orinoco.h */
102 #ifdef ORINOCO_DEBUG
103 int orinoco_debug = ORINOCO_DEBUG;
104 module_param(orinoco_debug, int, 0644);
105 MODULE_PARM_DESC(orinoco_debug, "Debug level");
106 EXPORT_SYMBOL(orinoco_debug);
107 #endif
108
109 static int suppress_linkstatus; /* = 0 */
110 module_param(suppress_linkstatus, bool, 0644);
111 MODULE_PARM_DESC(suppress_linkstatus, "Don't log link status changes");
112 static int ignore_disconnect; /* = 0 */
113 module_param(ignore_disconnect, int, 0644);
114 MODULE_PARM_DESC(ignore_disconnect, "Don't report lost link to the network layer");
115
116 static int force_monitor; /* = 0 */
117 module_param(force_monitor, int, 0644);
118 MODULE_PARM_DESC(force_monitor, "Allow monitor mode for all firmware versions");
119
120 /********************************************************************/
121 /* Compile time configuration and compatibility stuff */
122 /********************************************************************/
123
124 /* We do this this way to avoid ifdefs in the actual code */
125 #ifdef WIRELESS_SPY
126 #define SPY_NUMBER(priv) (priv->spy_data.spy_number)
127 #else
128 #define SPY_NUMBER(priv) 0
129 #endif /* WIRELESS_SPY */
130
131 /********************************************************************/
132 /* Internal constants */
133 /********************************************************************/
134
135 /* 802.2 LLC/SNAP header used for Ethernet encapsulation over 802.11 */
136 static const u8 encaps_hdr[] = {0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00};
137 #define ENCAPS_OVERHEAD (sizeof(encaps_hdr) + 2)
138
139 #define ORINOCO_MIN_MTU 256
140 #define ORINOCO_MAX_MTU (IEEE80211_DATA_LEN - ENCAPS_OVERHEAD)
141
142 #define SYMBOL_MAX_VER_LEN (14)
143 #define USER_BAP 0
144 #define IRQ_BAP 1
145 #define MAX_IRQLOOPS_PER_IRQ 10
146 #define MAX_IRQLOOPS_PER_JIFFY (20000/HZ) /* Based on a guestimate of
147 * how many events the
148 * device could
149 * legitimately generate */
150 #define SMALL_KEY_SIZE 5
151 #define LARGE_KEY_SIZE 13
152 #define TX_NICBUF_SIZE_BUG 1585 /* Bug in Symbol firmware */
153
154 #define DUMMY_FID 0xFFFF
155
156 /*#define MAX_MULTICAST(priv) (priv->firmware_type == FIRMWARE_TYPE_AGERE ? \
157 HERMES_MAX_MULTICAST : 0)*/
158 #define MAX_MULTICAST(priv) (HERMES_MAX_MULTICAST)
159
160 #define ORINOCO_INTEN (HERMES_EV_RX | HERMES_EV_ALLOC \
161 | HERMES_EV_TX | HERMES_EV_TXEXC \
162 | HERMES_EV_WTERR | HERMES_EV_INFO \
163 | HERMES_EV_INFDROP )
164
165 #define MAX_RID_LEN 1024
166
167 static const struct iw_handler_def orinoco_handler_def;
168 static const struct ethtool_ops orinoco_ethtool_ops;
169
170 /********************************************************************/
171 /* Data tables */
172 /********************************************************************/
173
174 /* The frequency of each channel in MHz */
175 static const long channel_frequency[] = {
176 2412, 2417, 2422, 2427, 2432, 2437, 2442,
177 2447, 2452, 2457, 2462, 2467, 2472, 2484
178 };
179 #define NUM_CHANNELS ARRAY_SIZE(channel_frequency)
180
181 /* This tables gives the actual meanings of the bitrate IDs returned
182 * by the firmware. */
183 static struct {
184 int bitrate; /* in 100s of kilobits */
185 int automatic;
186 u16 agere_txratectrl;
187 u16 intersil_txratectrl;
188 } bitrate_table[] = {
189 {110, 1, 3, 15}, /* Entry 0 is the default */
190 {10, 0, 1, 1},
191 {10, 1, 1, 1},
192 {20, 0, 2, 2},
193 {20, 1, 6, 3},
194 {55, 0, 4, 4},
195 {55, 1, 7, 7},
196 {110, 0, 5, 8},
197 };
198 #define BITRATE_TABLE_SIZE ARRAY_SIZE(bitrate_table)
199
200 /********************************************************************/
201 /* Data types */
202 /********************************************************************/
203
204 /* Beginning of the Tx descriptor, used in TxExc handling */
205 struct hermes_txexc_data {
206 struct hermes_tx_descriptor desc;
207 __le16 frame_ctl;
208 __le16 duration_id;
209 u8 addr1[ETH_ALEN];
210 } __attribute__ ((packed));
211
212 /* Rx frame header except compatibility 802.3 header */
213 struct hermes_rx_descriptor {
214 /* Control */
215 __le16 status;
216 __le32 time;
217 u8 silence;
218 u8 signal;
219 u8 rate;
220 u8 rxflow;
221 __le32 reserved;
222
223 /* 802.11 header */
224 __le16 frame_ctl;
225 __le16 duration_id;
226 u8 addr1[ETH_ALEN];
227 u8 addr2[ETH_ALEN];
228 u8 addr3[ETH_ALEN];
229 __le16 seq_ctl;
230 u8 addr4[ETH_ALEN];
231
232 /* Data length */
233 __le16 data_len;
234 } __attribute__ ((packed));
235
236 /********************************************************************/
237 /* Function prototypes */
238 /********************************************************************/
239
240 static int __orinoco_program_rids(struct net_device *dev);
241 static void __orinoco_set_multicast_list(struct net_device *dev);
242
243 /********************************************************************/
244 /* Internal helper functions */
245 /********************************************************************/
246
247 static inline void set_port_type(struct orinoco_private *priv)
248 {
249 switch (priv->iw_mode) {
250 case IW_MODE_INFRA:
251 priv->port_type = 1;
252 priv->createibss = 0;
253 break;
254 case IW_MODE_ADHOC:
255 if (priv->prefer_port3) {
256 priv->port_type = 3;
257 priv->createibss = 0;
258 } else {
259 priv->port_type = priv->ibss_port;
260 priv->createibss = 1;
261 }
262 break;
263 case IW_MODE_MONITOR:
264 priv->port_type = 3;
265 priv->createibss = 0;
266 break;
267 default:
268 printk(KERN_ERR "%s: Invalid priv->iw_mode in set_port_type()\n",
269 priv->ndev->name);
270 }
271 }
272
273 /********************************************************************/
274 /* Device methods */
275 /********************************************************************/
276
277 static int orinoco_open(struct net_device *dev)
278 {
279 struct orinoco_private *priv = netdev_priv(dev);
280 unsigned long flags;
281 int err;
282
283 if (orinoco_lock(priv, &flags) != 0)
284 return -EBUSY;
285
286 err = __orinoco_up(dev);
287
288 if (! err)
289 priv->open = 1;
290
291 orinoco_unlock(priv, &flags);
292
293 return err;
294 }
295
296 static int orinoco_stop(struct net_device *dev)
297 {
298 struct orinoco_private *priv = netdev_priv(dev);
299 int err = 0;
300
301 /* We mustn't use orinoco_lock() here, because we need to be
302 able to close the interface even if hw_unavailable is set
303 (e.g. as we're released after a PC Card removal) */
304 spin_lock_irq(&priv->lock);
305
306 priv->open = 0;
307
308 err = __orinoco_down(dev);
309
310 spin_unlock_irq(&priv->lock);
311
312 return err;
313 }
314
315 static struct net_device_stats *orinoco_get_stats(struct net_device *dev)
316 {
317 struct orinoco_private *priv = netdev_priv(dev);
318
319 return &priv->stats;
320 }
321
322 static struct iw_statistics *orinoco_get_wireless_stats(struct net_device *dev)
323 {
324 struct orinoco_private *priv = netdev_priv(dev);
325 hermes_t *hw = &priv->hw;
326 struct iw_statistics *wstats = &priv->wstats;
327 int err;
328 unsigned long flags;
329
330 if (! netif_device_present(dev)) {
331 printk(KERN_WARNING "%s: get_wireless_stats() called while device not present\n",
332 dev->name);
333 return NULL; /* FIXME: Can we do better than this? */
334 }
335
336 /* If busy, return the old stats. Returning NULL may cause
337 * the interface to disappear from /proc/net/wireless */
338 if (orinoco_lock(priv, &flags) != 0)
339 return wstats;
340
341 /* We can't really wait for the tallies inquiry command to
342 * complete, so we just use the previous results and trigger
343 * a new tallies inquiry command for next time - Jean II */
344 /* FIXME: Really we should wait for the inquiry to come back -
345 * as it is the stats we give don't make a whole lot of sense.
346 * Unfortunately, it's not clear how to do that within the
347 * wireless extensions framework: I think we're in user
348 * context, but a lock seems to be held by the time we get in
349 * here so we're not safe to sleep here. */
350 hermes_inquire(hw, HERMES_INQ_TALLIES);
351
352 if (priv->iw_mode == IW_MODE_ADHOC) {
353 memset(&wstats->qual, 0, sizeof(wstats->qual));
354 /* If a spy address is defined, we report stats of the
355 * first spy address - Jean II */
356 if (SPY_NUMBER(priv)) {
357 wstats->qual.qual = priv->spy_data.spy_stat[0].qual;
358 wstats->qual.level = priv->spy_data.spy_stat[0].level;
359 wstats->qual.noise = priv->spy_data.spy_stat[0].noise;
360 wstats->qual.updated = priv->spy_data.spy_stat[0].updated;
361 }
362 } else {
363 struct {
364 __le16 qual, signal, noise, unused;
365 } __attribute__ ((packed)) cq;
366
367 err = HERMES_READ_RECORD(hw, USER_BAP,
368 HERMES_RID_COMMSQUALITY, &cq);
369
370 if (!err) {
371 wstats->qual.qual = (int)le16_to_cpu(cq.qual);
372 wstats->qual.level = (int)le16_to_cpu(cq.signal) - 0x95;
373 wstats->qual.noise = (int)le16_to_cpu(cq.noise) - 0x95;
374 wstats->qual.updated = 7;
375 }
376 }
377
378 orinoco_unlock(priv, &flags);
379 return wstats;
380 }
381
382 static void orinoco_set_multicast_list(struct net_device *dev)
383 {
384 struct orinoco_private *priv = netdev_priv(dev);
385 unsigned long flags;
386
387 if (orinoco_lock(priv, &flags) != 0) {
388 printk(KERN_DEBUG "%s: orinoco_set_multicast_list() "
389 "called when hw_unavailable\n", dev->name);
390 return;
391 }
392
393 __orinoco_set_multicast_list(dev);
394 orinoco_unlock(priv, &flags);
395 }
396
397 static int orinoco_change_mtu(struct net_device *dev, int new_mtu)
398 {
399 struct orinoco_private *priv = netdev_priv(dev);
400
401 if ( (new_mtu < ORINOCO_MIN_MTU) || (new_mtu > ORINOCO_MAX_MTU) )
402 return -EINVAL;
403
404 if ( (new_mtu + ENCAPS_OVERHEAD + IEEE80211_HLEN) >
405 (priv->nicbuf_size - ETH_HLEN) )
406 return -EINVAL;
407
408 dev->mtu = new_mtu;
409
410 return 0;
411 }
412
413 /********************************************************************/
414 /* Tx path */
415 /********************************************************************/
416
417 static int orinoco_xmit(struct sk_buff *skb, struct net_device *dev)
418 {
419 struct orinoco_private *priv = netdev_priv(dev);
420 struct net_device_stats *stats = &priv->stats;
421 hermes_t *hw = &priv->hw;
422 int err = 0;
423 u16 txfid = priv->txfid;
424 struct ethhdr *eh;
425 int data_off;
426 struct hermes_tx_descriptor desc;
427 unsigned long flags;
428
429 if (! netif_running(dev)) {
430 printk(KERN_ERR "%s: Tx on stopped device!\n",
431 dev->name);
432 return NETDEV_TX_BUSY;
433 }
434
435 if (netif_queue_stopped(dev)) {
436 printk(KERN_DEBUG "%s: Tx while transmitter busy!\n",
437 dev->name);
438 return NETDEV_TX_BUSY;
439 }
440
441 if (orinoco_lock(priv, &flags) != 0) {
442 printk(KERN_ERR "%s: orinoco_xmit() called while hw_unavailable\n",
443 dev->name);
444 return NETDEV_TX_BUSY;
445 }
446
447 if (! netif_carrier_ok(dev) || (priv->iw_mode == IW_MODE_MONITOR)) {
448 /* Oops, the firmware hasn't established a connection,
449 silently drop the packet (this seems to be the
450 safest approach). */
451 goto drop;
452 }
453
454 /* Check packet length */
455 if (skb->len < ETH_HLEN)
456 goto drop;
457
458 eh = (struct ethhdr *)skb->data;
459
460 memset(&desc, 0, sizeof(desc));
461 desc.tx_control = cpu_to_le16(HERMES_TXCTRL_TX_OK | HERMES_TXCTRL_TX_EX);
462 err = hermes_bap_pwrite(hw, USER_BAP, &desc, sizeof(desc), txfid, 0);
463 if (err) {
464 if (net_ratelimit())
465 printk(KERN_ERR "%s: Error %d writing Tx descriptor "
466 "to BAP\n", dev->name, err);
467 goto busy;
468 }
469
470 /* Clear the 802.11 header and data length fields - some
471 * firmwares (e.g. Lucent/Agere 8.xx) appear to get confused
472 * if this isn't done. */
473 hermes_clear_words(hw, HERMES_DATA0,
474 HERMES_802_3_OFFSET - HERMES_802_11_OFFSET);
475
476 /* Encapsulate Ethernet-II frames */
477 if (ntohs(eh->h_proto) > ETH_DATA_LEN) { /* Ethernet-II frame */
478 struct header_struct {
479 struct ethhdr eth; /* 802.3 header */
480 u8 encap[6]; /* 802.2 header */
481 } __attribute__ ((packed)) hdr;
482
483 /* Strip destination and source from the data */
484 skb_pull(skb, 2 * ETH_ALEN);
485 data_off = HERMES_802_2_OFFSET + sizeof(encaps_hdr);
486
487 /* And move them to a separate header */
488 memcpy(&hdr.eth, eh, 2 * ETH_ALEN);
489 hdr.eth.h_proto = htons(sizeof(encaps_hdr) + skb->len);
490 memcpy(hdr.encap, encaps_hdr, sizeof(encaps_hdr));
491
492 err = hermes_bap_pwrite(hw, USER_BAP, &hdr, sizeof(hdr),
493 txfid, HERMES_802_3_OFFSET);
494 if (err) {
495 if (net_ratelimit())
496 printk(KERN_ERR "%s: Error %d writing packet "
497 "header to BAP\n", dev->name, err);
498 goto busy;
499 }
500 } else { /* IEEE 802.3 frame */
501 data_off = HERMES_802_3_OFFSET;
502 }
503
504 err = hermes_bap_pwrite(hw, USER_BAP, skb->data, skb->len,
505 txfid, data_off);
506 if (err) {
507 printk(KERN_ERR "%s: Error %d writing packet to BAP\n",
508 dev->name, err);
509 goto busy;
510 }
511
512 /* Finally, we actually initiate the send */
513 netif_stop_queue(dev);
514
515 err = hermes_docmd_wait(hw, HERMES_CMD_TX | HERMES_CMD_RECL,
516 txfid, NULL);
517 if (err) {
518 netif_start_queue(dev);
519 if (net_ratelimit())
520 printk(KERN_ERR "%s: Error %d transmitting packet\n",
521 dev->name, err);
522 goto busy;
523 }
524
525 dev->trans_start = jiffies;
526 stats->tx_bytes += data_off + skb->len;
527 goto ok;
528
529 drop:
530 stats->tx_errors++;
531 stats->tx_dropped++;
532
533 ok:
534 orinoco_unlock(priv, &flags);
535 dev_kfree_skb(skb);
536 return NETDEV_TX_OK;
537
538 busy:
539 if (err == -EIO)
540 schedule_work(&priv->reset_work);
541 orinoco_unlock(priv, &flags);
542 return NETDEV_TX_BUSY;
543 }
544
545 static void __orinoco_ev_alloc(struct net_device *dev, hermes_t *hw)
546 {
547 struct orinoco_private *priv = netdev_priv(dev);
548 u16 fid = hermes_read_regn(hw, ALLOCFID);
549
550 if (fid != priv->txfid) {
551 if (fid != DUMMY_FID)
552 printk(KERN_WARNING "%s: Allocate event on unexpected fid (%04X)\n",
553 dev->name, fid);
554 return;
555 }
556
557 hermes_write_regn(hw, ALLOCFID, DUMMY_FID);
558 }
559
560 static void __orinoco_ev_tx(struct net_device *dev, hermes_t *hw)
561 {
562 struct orinoco_private *priv = netdev_priv(dev);
563 struct net_device_stats *stats = &priv->stats;
564
565 stats->tx_packets++;
566
567 netif_wake_queue(dev);
568
569 hermes_write_regn(hw, TXCOMPLFID, DUMMY_FID);
570 }
571
572 static void __orinoco_ev_txexc(struct net_device *dev, hermes_t *hw)
573 {
574 struct orinoco_private *priv = netdev_priv(dev);
575 struct net_device_stats *stats = &priv->stats;
576 u16 fid = hermes_read_regn(hw, TXCOMPLFID);
577 u16 status;
578 struct hermes_txexc_data hdr;
579 int err = 0;
580
581 if (fid == DUMMY_FID)
582 return; /* Nothing's really happened */
583
584 /* Read part of the frame header - we need status and addr1 */
585 err = hermes_bap_pread(hw, IRQ_BAP, &hdr,
586 sizeof(struct hermes_txexc_data),
587 fid, 0);
588
589 hermes_write_regn(hw, TXCOMPLFID, DUMMY_FID);
590 stats->tx_errors++;
591
592 if (err) {
593 printk(KERN_WARNING "%s: Unable to read descriptor on Tx error "
594 "(FID=%04X error %d)\n",
595 dev->name, fid, err);
596 return;
597 }
598
599 DEBUG(1, "%s: Tx error, err %d (FID=%04X)\n", dev->name,
600 err, fid);
601
602 /* We produce a TXDROP event only for retry or lifetime
603 * exceeded, because that's the only status that really mean
604 * that this particular node went away.
605 * Other errors means that *we* screwed up. - Jean II */
606 status = le16_to_cpu(hdr.desc.status);
607 if (status & (HERMES_TXSTAT_RETRYERR | HERMES_TXSTAT_AGEDERR)) {
608 union iwreq_data wrqu;
609
610 /* Copy 802.11 dest address.
611 * We use the 802.11 header because the frame may
612 * not be 802.3 or may be mangled...
613 * In Ad-Hoc mode, it will be the node address.
614 * In managed mode, it will be most likely the AP addr
615 * User space will figure out how to convert it to
616 * whatever it needs (IP address or else).
617 * - Jean II */
618 memcpy(wrqu.addr.sa_data, hdr.addr1, ETH_ALEN);
619 wrqu.addr.sa_family = ARPHRD_ETHER;
620
621 /* Send event to user space */
622 wireless_send_event(dev, IWEVTXDROP, &wrqu, NULL);
623 }
624
625 netif_wake_queue(dev);
626 }
627
628 static void orinoco_tx_timeout(struct net_device *dev)
629 {
630 struct orinoco_private *priv = netdev_priv(dev);
631 struct net_device_stats *stats = &priv->stats;
632 struct hermes *hw = &priv->hw;
633
634 printk(KERN_WARNING "%s: Tx timeout! "
635 "ALLOCFID=%04x, TXCOMPLFID=%04x, EVSTAT=%04x\n",
636 dev->name, hermes_read_regn(hw, ALLOCFID),
637 hermes_read_regn(hw, TXCOMPLFID), hermes_read_regn(hw, EVSTAT));
638
639 stats->tx_errors++;
640
641 schedule_work(&priv->reset_work);
642 }
643
644 /********************************************************************/
645 /* Rx path (data frames) */
646 /********************************************************************/
647
648 /* Does the frame have a SNAP header indicating it should be
649 * de-encapsulated to Ethernet-II? */
650 static inline int is_ethersnap(void *_hdr)
651 {
652 u8 *hdr = _hdr;
653
654 /* We de-encapsulate all packets which, a) have SNAP headers
655 * (i.e. SSAP=DSAP=0xaa and CTRL=0x3 in the 802.2 LLC header
656 * and where b) the OUI of the SNAP header is 00:00:00 or
657 * 00:00:f8 - we need both because different APs appear to use
658 * different OUIs for some reason */
659 return (memcmp(hdr, &encaps_hdr, 5) == 0)
660 && ( (hdr[5] == 0x00) || (hdr[5] == 0xf8) );
661 }
662
663 static inline void orinoco_spy_gather(struct net_device *dev, u_char *mac,
664 int level, int noise)
665 {
666 struct iw_quality wstats;
667 wstats.level = level - 0x95;
668 wstats.noise = noise - 0x95;
669 wstats.qual = (level > noise) ? (level - noise) : 0;
670 wstats.updated = 7;
671 /* Update spy records */
672 wireless_spy_update(dev, mac, &wstats);
673 }
674
675 static void orinoco_stat_gather(struct net_device *dev,
676 struct sk_buff *skb,
677 struct hermes_rx_descriptor *desc)
678 {
679 struct orinoco_private *priv = netdev_priv(dev);
680
681 /* Using spy support with lots of Rx packets, like in an
682 * infrastructure (AP), will really slow down everything, because
683 * the MAC address must be compared to each entry of the spy list.
684 * If the user really asks for it (set some address in the
685 * spy list), we do it, but he will pay the price.
686 * Note that to get here, you need both WIRELESS_SPY
687 * compiled in AND some addresses in the list !!!
688 */
689 /* Note : gcc will optimise the whole section away if
690 * WIRELESS_SPY is not defined... - Jean II */
691 if (SPY_NUMBER(priv)) {
692 orinoco_spy_gather(dev, skb->mac.raw + ETH_ALEN,
693 desc->signal, desc->silence);
694 }
695 }
696
697 /*
698 * orinoco_rx_monitor - handle received monitor frames.
699 *
700 * Arguments:
701 * dev network device
702 * rxfid received FID
703 * desc rx descriptor of the frame
704 *
705 * Call context: interrupt
706 */
707 static void orinoco_rx_monitor(struct net_device *dev, u16 rxfid,
708 struct hermes_rx_descriptor *desc)
709 {
710 u32 hdrlen = 30; /* return full header by default */
711 u32 datalen = 0;
712 u16 fc;
713 int err;
714 int len;
715 struct sk_buff *skb;
716 struct orinoco_private *priv = netdev_priv(dev);
717 struct net_device_stats *stats = &priv->stats;
718 hermes_t *hw = &priv->hw;
719
720 len = le16_to_cpu(desc->data_len);
721
722 /* Determine the size of the header and the data */
723 fc = le16_to_cpu(desc->frame_ctl);
724 switch (fc & IEEE80211_FCTL_FTYPE) {
725 case IEEE80211_FTYPE_DATA:
726 if ((fc & IEEE80211_FCTL_TODS)
727 && (fc & IEEE80211_FCTL_FROMDS))
728 hdrlen = 30;
729 else
730 hdrlen = 24;
731 datalen = len;
732 break;
733 case IEEE80211_FTYPE_MGMT:
734 hdrlen = 24;
735 datalen = len;
736 break;
737 case IEEE80211_FTYPE_CTL:
738 switch (fc & IEEE80211_FCTL_STYPE) {
739 case IEEE80211_STYPE_PSPOLL:
740 case IEEE80211_STYPE_RTS:
741 case IEEE80211_STYPE_CFEND:
742 case IEEE80211_STYPE_CFENDACK:
743 hdrlen = 16;
744 break;
745 case IEEE80211_STYPE_CTS:
746 case IEEE80211_STYPE_ACK:
747 hdrlen = 10;
748 break;
749 }
750 break;
751 default:
752 /* Unknown frame type */
753 break;
754 }
755
756 /* sanity check the length */
757 if (datalen > IEEE80211_DATA_LEN + 12) {
758 printk(KERN_DEBUG "%s: oversized monitor frame, "
759 "data length = %d\n", dev->name, datalen);
760 stats->rx_length_errors++;
761 goto update_stats;
762 }
763
764 skb = dev_alloc_skb(hdrlen + datalen);
765 if (!skb) {
766 printk(KERN_WARNING "%s: Cannot allocate skb for monitor frame\n",
767 dev->name);
768 goto update_stats;
769 }
770
771 /* Copy the 802.11 header to the skb */
772 memcpy(skb_put(skb, hdrlen), &(desc->frame_ctl), hdrlen);
773 skb->mac.raw = skb->data;
774
775 /* If any, copy the data from the card to the skb */
776 if (datalen > 0) {
777 err = hermes_bap_pread(hw, IRQ_BAP, skb_put(skb, datalen),
778 ALIGN(datalen, 2), rxfid,
779 HERMES_802_2_OFFSET);
780 if (err) {
781 printk(KERN_ERR "%s: error %d reading monitor frame\n",
782 dev->name, err);
783 goto drop;
784 }
785 }
786
787 skb->dev = dev;
788 skb->ip_summed = CHECKSUM_NONE;
789 skb->pkt_type = PACKET_OTHERHOST;
790 skb->protocol = __constant_htons(ETH_P_802_2);
791
792 dev->last_rx = jiffies;
793 stats->rx_packets++;
794 stats->rx_bytes += skb->len;
795
796 netif_rx(skb);
797 return;
798
799 drop:
800 dev_kfree_skb_irq(skb);
801 update_stats:
802 stats->rx_errors++;
803 stats->rx_dropped++;
804 }
805
806 static void __orinoco_ev_rx(struct net_device *dev, hermes_t *hw)
807 {
808 struct orinoco_private *priv = netdev_priv(dev);
809 struct net_device_stats *stats = &priv->stats;
810 struct iw_statistics *wstats = &priv->wstats;
811 struct sk_buff *skb = NULL;
812 u16 rxfid, status, fc;
813 int length;
814 struct hermes_rx_descriptor desc;
815 struct ethhdr *hdr;
816 int err;
817
818 rxfid = hermes_read_regn(hw, RXFID);
819
820 err = hermes_bap_pread(hw, IRQ_BAP, &desc, sizeof(desc),
821 rxfid, 0);
822 if (err) {
823 printk(KERN_ERR "%s: error %d reading Rx descriptor. "
824 "Frame dropped.\n", dev->name, err);
825 goto update_stats;
826 }
827
828 status = le16_to_cpu(desc.status);
829
830 if (status & HERMES_RXSTAT_BADCRC) {
831 DEBUG(1, "%s: Bad CRC on Rx. Frame dropped.\n",
832 dev->name);
833 stats->rx_crc_errors++;
834 goto update_stats;
835 }
836
837 /* Handle frames in monitor mode */
838 if (priv->iw_mode == IW_MODE_MONITOR) {
839 orinoco_rx_monitor(dev, rxfid, &desc);
840 return;
841 }
842
843 if (status & HERMES_RXSTAT_UNDECRYPTABLE) {
844 DEBUG(1, "%s: Undecryptable frame on Rx. Frame dropped.\n",
845 dev->name);
846 wstats->discard.code++;
847 goto update_stats;
848 }
849
850 length = le16_to_cpu(desc.data_len);
851 fc = le16_to_cpu(desc.frame_ctl);
852
853 /* Sanity checks */
854 if (length < 3) { /* No for even an 802.2 LLC header */
855 /* At least on Symbol firmware with PCF we get quite a
856 lot of these legitimately - Poll frames with no
857 data. */
858 return;
859 }
860 if (length > IEEE80211_DATA_LEN) {
861 printk(KERN_WARNING "%s: Oversized frame received (%d bytes)\n",
862 dev->name, length);
863 stats->rx_length_errors++;
864 goto update_stats;
865 }
866
867 /* We need space for the packet data itself, plus an ethernet
868 header, plus 2 bytes so we can align the IP header on a
869 32bit boundary, plus 1 byte so we can read in odd length
870 packets from the card, which has an IO granularity of 16
871 bits */
872 skb = dev_alloc_skb(length+ETH_HLEN+2+1);
873 if (!skb) {
874 printk(KERN_WARNING "%s: Can't allocate skb for Rx\n",
875 dev->name);
876 goto update_stats;
877 }
878
879 /* We'll prepend the header, so reserve space for it. The worst
880 case is no decapsulation, when 802.3 header is prepended and
881 nothing is removed. 2 is for aligning the IP header. */
882 skb_reserve(skb, ETH_HLEN + 2);
883
884 err = hermes_bap_pread(hw, IRQ_BAP, skb_put(skb, length),
885 ALIGN(length, 2), rxfid,
886 HERMES_802_2_OFFSET);
887 if (err) {
888 printk(KERN_ERR "%s: error %d reading frame. "
889 "Frame dropped.\n", dev->name, err);
890 goto drop;
891 }
892
893 /* Handle decapsulation
894 * In most cases, the firmware tell us about SNAP frames.
895 * For some reason, the SNAP frames sent by LinkSys APs
896 * are not properly recognised by most firmwares.
897 * So, check ourselves */
898 if (length >= ENCAPS_OVERHEAD &&
899 (((status & HERMES_RXSTAT_MSGTYPE) == HERMES_RXSTAT_1042) ||
900 ((status & HERMES_RXSTAT_MSGTYPE) == HERMES_RXSTAT_TUNNEL) ||
901 is_ethersnap(skb->data))) {
902 /* These indicate a SNAP within 802.2 LLC within
903 802.11 frame which we'll need to de-encapsulate to
904 the original EthernetII frame. */
905 hdr = (struct ethhdr *)skb_push(skb, ETH_HLEN - ENCAPS_OVERHEAD);
906 } else {
907 /* 802.3 frame - prepend 802.3 header as is */
908 hdr = (struct ethhdr *)skb_push(skb, ETH_HLEN);
909 hdr->h_proto = htons(length);
910 }
911 memcpy(hdr->h_dest, desc.addr1, ETH_ALEN);
912 if (fc & IEEE80211_FCTL_FROMDS)
913 memcpy(hdr->h_source, desc.addr3, ETH_ALEN);
914 else
915 memcpy(hdr->h_source, desc.addr2, ETH_ALEN);
916
917 dev->last_rx = jiffies;
918 skb->dev = dev;
919 skb->protocol = eth_type_trans(skb, dev);
920 skb->ip_summed = CHECKSUM_NONE;
921 if (fc & IEEE80211_FCTL_TODS)
922 skb->pkt_type = PACKET_OTHERHOST;
923
924 /* Process the wireless stats if needed */
925 orinoco_stat_gather(dev, skb, &desc);
926
927 /* Pass the packet to the networking stack */
928 netif_rx(skb);
929 stats->rx_packets++;
930 stats->rx_bytes += length;
931
932 return;
933
934 drop:
935 dev_kfree_skb_irq(skb);
936 update_stats:
937 stats->rx_errors++;
938 stats->rx_dropped++;
939 }
940
941 /********************************************************************/
942 /* Rx path (info frames) */
943 /********************************************************************/
944
945 static void print_linkstatus(struct net_device *dev, u16 status)
946 {
947 char * s;
948
949 if (suppress_linkstatus)
950 return;
951
952 switch (status) {
953 case HERMES_LINKSTATUS_NOT_CONNECTED:
954 s = "Not Connected";
955 break;
956 case HERMES_LINKSTATUS_CONNECTED:
957 s = "Connected";
958 break;
959 case HERMES_LINKSTATUS_DISCONNECTED:
960 s = "Disconnected";
961 break;
962 case HERMES_LINKSTATUS_AP_CHANGE:
963 s = "AP Changed";
964 break;
965 case HERMES_LINKSTATUS_AP_OUT_OF_RANGE:
966 s = "AP Out of Range";
967 break;
968 case HERMES_LINKSTATUS_AP_IN_RANGE:
969 s = "AP In Range";
970 break;
971 case HERMES_LINKSTATUS_ASSOC_FAILED:
972 s = "Association Failed";
973 break;
974 default:
975 s = "UNKNOWN";
976 }
977
978 printk(KERN_INFO "%s: New link status: %s (%04x)\n",
979 dev->name, s, status);
980 }
981
982 /* Search scan results for requested BSSID, join it if found */
983 static void orinoco_join_ap(struct net_device *dev)
984 {
985 struct orinoco_private *priv = netdev_priv(dev);
986 struct hermes *hw = &priv->hw;
987 int err;
988 unsigned long flags;
989 struct join_req {
990 u8 bssid[ETH_ALEN];
991 __le16 channel;
992 } __attribute__ ((packed)) req;
993 const int atom_len = offsetof(struct prism2_scan_apinfo, atim);
994 struct prism2_scan_apinfo *atom = NULL;
995 int offset = 4;
996 int found = 0;
997 u8 *buf;
998 u16 len;
999
1000 /* Allocate buffer for scan results */
1001 buf = kmalloc(MAX_SCAN_LEN, GFP_KERNEL);
1002 if (! buf)
1003 return;
1004
1005 if (orinoco_lock(priv, &flags) != 0)
1006 goto fail_lock;
1007
1008 /* Sanity checks in case user changed something in the meantime */
1009 if (! priv->bssid_fixed)
1010 goto out;
1011
1012 if (strlen(priv->desired_essid) == 0)
1013 goto out;
1014
1015 /* Read scan results from the firmware */
1016 err = hermes_read_ltv(hw, USER_BAP,
1017 HERMES_RID_SCANRESULTSTABLE,
1018 MAX_SCAN_LEN, &len, buf);
1019 if (err) {
1020 printk(KERN_ERR "%s: Cannot read scan results\n",
1021 dev->name);
1022 goto out;
1023 }
1024
1025 len = HERMES_RECLEN_TO_BYTES(len);
1026
1027 /* Go through the scan results looking for the channel of the AP
1028 * we were requested to join */
1029 for (; offset + atom_len <= len; offset += atom_len) {
1030 atom = (struct prism2_scan_apinfo *) (buf + offset);
1031 if (memcmp(&atom->bssid, priv->desired_bssid, ETH_ALEN) == 0) {
1032 found = 1;
1033 break;
1034 }
1035 }
1036
1037 if (! found) {
1038 DEBUG(1, "%s: Requested AP not found in scan results\n",
1039 dev->name);
1040 goto out;
1041 }
1042
1043 memcpy(req.bssid, priv->desired_bssid, ETH_ALEN);
1044 req.channel = atom->channel; /* both are little-endian */
1045 err = HERMES_WRITE_RECORD(hw, USER_BAP, HERMES_RID_CNFJOINREQUEST,
1046 &req);
1047 if (err)
1048 printk(KERN_ERR "%s: Error issuing join request\n", dev->name);
1049
1050 out:
1051 orinoco_unlock(priv, &flags);
1052
1053 fail_lock:
1054 kfree(buf);
1055 }
1056
1057 /* Send new BSSID to userspace */
1058 static void orinoco_send_wevents(struct net_device *dev)
1059 {
1060 struct orinoco_private *priv = netdev_priv(dev);
1061 struct hermes *hw = &priv->hw;
1062 union iwreq_data wrqu;
1063 int err;
1064 unsigned long flags;
1065
1066 if (orinoco_lock(priv, &flags) != 0)
1067 return;
1068
1069 err = hermes_read_ltv(hw, IRQ_BAP, HERMES_RID_CURRENTBSSID,
1070 ETH_ALEN, NULL, wrqu.ap_addr.sa_data);
1071 if (err != 0)
1072 goto out;
1073
1074 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
1075
1076 /* Send event to user space */
1077 wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
1078
1079 out:
1080 orinoco_unlock(priv, &flags);
1081 }
1082
1083 static void __orinoco_ev_info(struct net_device *dev, hermes_t *hw)
1084 {
1085 struct orinoco_private *priv = netdev_priv(dev);
1086 u16 infofid;
1087 struct {
1088 __le16 len;
1089 __le16 type;
1090 } __attribute__ ((packed)) info;
1091 int len, type;
1092 int err;
1093
1094 /* This is an answer to an INQUIRE command that we did earlier,
1095 * or an information "event" generated by the card
1096 * The controller return to us a pseudo frame containing
1097 * the information in question - Jean II */
1098 infofid = hermes_read_regn(hw, INFOFID);
1099
1100 /* Read the info frame header - don't try too hard */
1101 err = hermes_bap_pread(hw, IRQ_BAP, &info, sizeof(info),
1102 infofid, 0);
1103 if (err) {
1104 printk(KERN_ERR "%s: error %d reading info frame. "
1105 "Frame dropped.\n", dev->name, err);
1106 return;
1107 }
1108
1109 len = HERMES_RECLEN_TO_BYTES(le16_to_cpu(info.len));
1110 type = le16_to_cpu(info.type);
1111
1112 switch (type) {
1113 case HERMES_INQ_TALLIES: {
1114 struct hermes_tallies_frame tallies;
1115 struct iw_statistics *wstats = &priv->wstats;
1116
1117 if (len > sizeof(tallies)) {
1118 printk(KERN_WARNING "%s: Tallies frame too long (%d bytes)\n",
1119 dev->name, len);
1120 len = sizeof(tallies);
1121 }
1122
1123 err = hermes_bap_pread(hw, IRQ_BAP, &tallies, len,
1124 infofid, sizeof(info));
1125 if (err)
1126 break;
1127
1128 /* Increment our various counters */
1129 /* wstats->discard.nwid - no wrong BSSID stuff */
1130 wstats->discard.code +=
1131 le16_to_cpu(tallies.RxWEPUndecryptable);
1132 if (len == sizeof(tallies))
1133 wstats->discard.code +=
1134 le16_to_cpu(tallies.RxDiscards_WEPICVError) +
1135 le16_to_cpu(tallies.RxDiscards_WEPExcluded);
1136 wstats->discard.misc +=
1137 le16_to_cpu(tallies.TxDiscardsWrongSA);
1138 wstats->discard.fragment +=
1139 le16_to_cpu(tallies.RxMsgInBadMsgFragments);
1140 wstats->discard.retries +=
1141 le16_to_cpu(tallies.TxRetryLimitExceeded);
1142 /* wstats->miss.beacon - no match */
1143 }
1144 break;
1145 case HERMES_INQ_LINKSTATUS: {
1146 struct hermes_linkstatus linkstatus;
1147 u16 newstatus;
1148 int connected;
1149
1150 if (priv->iw_mode == IW_MODE_MONITOR)
1151 break;
1152
1153 if (len != sizeof(linkstatus)) {
1154 printk(KERN_WARNING "%s: Unexpected size for linkstatus frame (%d bytes)\n",
1155 dev->name, len);
1156 break;
1157 }
1158
1159 err = hermes_bap_pread(hw, IRQ_BAP, &linkstatus, len,
1160 infofid, sizeof(info));
1161 if (err)
1162 break;
1163 newstatus = le16_to_cpu(linkstatus.linkstatus);
1164
1165 /* Symbol firmware uses "out of range" to signal that
1166 * the hostscan frame can be requested. */
1167 if (newstatus == HERMES_LINKSTATUS_AP_OUT_OF_RANGE &&
1168 priv->firmware_type == FIRMWARE_TYPE_SYMBOL &&
1169 priv->has_hostscan && priv->scan_inprogress) {
1170 hermes_inquire(hw, HERMES_INQ_HOSTSCAN_SYMBOL);
1171 break;
1172 }
1173
1174 connected = (newstatus == HERMES_LINKSTATUS_CONNECTED)
1175 || (newstatus == HERMES_LINKSTATUS_AP_CHANGE)
1176 || (newstatus == HERMES_LINKSTATUS_AP_IN_RANGE);
1177
1178 if (connected)
1179 netif_carrier_on(dev);
1180 else if (!ignore_disconnect)
1181 netif_carrier_off(dev);
1182
1183 if (newstatus != priv->last_linkstatus) {
1184 priv->last_linkstatus = newstatus;
1185 print_linkstatus(dev, newstatus);
1186 /* The info frame contains only one word which is the
1187 * status (see hermes.h). The status is pretty boring
1188 * in itself, that's why we export the new BSSID...
1189 * Jean II */
1190 schedule_work(&priv->wevent_work);
1191 }
1192 }
1193 break;
1194 case HERMES_INQ_SCAN:
1195 if (!priv->scan_inprogress && priv->bssid_fixed &&
1196 priv->firmware_type == FIRMWARE_TYPE_INTERSIL) {
1197 schedule_work(&priv->join_work);
1198 break;
1199 }
1200 /* fall through */
1201 case HERMES_INQ_HOSTSCAN:
1202 case HERMES_INQ_HOSTSCAN_SYMBOL: {
1203 /* Result of a scanning. Contains information about
1204 * cells in the vicinity - Jean II */
1205 union iwreq_data wrqu;
1206 unsigned char *buf;
1207
1208 /* Sanity check */
1209 if (len > 4096) {
1210 printk(KERN_WARNING "%s: Scan results too large (%d bytes)\n",
1211 dev->name, len);
1212 break;
1213 }
1214
1215 /* We are a strict producer. If the previous scan results
1216 * have not been consumed, we just have to drop this
1217 * frame. We can't remove the previous results ourselves,
1218 * that would be *very* racy... Jean II */
1219 if (priv->scan_result != NULL) {
1220 printk(KERN_WARNING "%s: Previous scan results not consumed, dropping info frame.\n", dev->name);
1221 break;
1222 }
1223
1224 /* Allocate buffer for results */
1225 buf = kmalloc(len, GFP_ATOMIC);
1226 if (buf == NULL)
1227 /* No memory, so can't printk()... */
1228 break;
1229
1230 /* Read scan data */
1231 err = hermes_bap_pread(hw, IRQ_BAP, (void *) buf, len,
1232 infofid, sizeof(info));
1233 if (err) {
1234 kfree(buf);
1235 break;
1236 }
1237
1238 #ifdef ORINOCO_DEBUG
1239 {
1240 int i;
1241 printk(KERN_DEBUG "Scan result [%02X", buf[0]);
1242 for(i = 1; i < (len * 2); i++)
1243 printk(":%02X", buf[i]);
1244 printk("]\n");
1245 }
1246 #endif /* ORINOCO_DEBUG */
1247
1248 /* Allow the clients to access the results */
1249 priv->scan_len = len;
1250 priv->scan_result = buf;
1251
1252 /* Send an empty event to user space.
1253 * We don't send the received data on the event because
1254 * it would require us to do complex transcoding, and
1255 * we want to minimise the work done in the irq handler
1256 * Use a request to extract the data - Jean II */
1257 wrqu.data.length = 0;
1258 wrqu.data.flags = 0;
1259 wireless_send_event(dev, SIOCGIWSCAN, &wrqu, NULL);
1260 }
1261 break;
1262 case HERMES_INQ_SEC_STAT_AGERE:
1263 /* Security status (Agere specific) */
1264 /* Ignore this frame for now */
1265 if (priv->firmware_type == FIRMWARE_TYPE_AGERE)
1266 break;
1267 /* fall through */
1268 default:
1269 printk(KERN_DEBUG "%s: Unknown information frame received: "
1270 "type 0x%04x, length %d\n", dev->name, type, len);
1271 /* We don't actually do anything about it */
1272 break;
1273 }
1274 }
1275
1276 static void __orinoco_ev_infdrop(struct net_device *dev, hermes_t *hw)
1277 {
1278 if (net_ratelimit())
1279 printk(KERN_DEBUG "%s: Information frame lost.\n", dev->name);
1280 }
1281
1282 /********************************************************************/
1283 /* Internal hardware control routines */
1284 /********************************************************************/
1285
1286 int __orinoco_up(struct net_device *dev)
1287 {
1288 struct orinoco_private *priv = netdev_priv(dev);
1289 struct hermes *hw = &priv->hw;
1290 int err;
1291
1292 netif_carrier_off(dev); /* just to make sure */
1293
1294 err = __orinoco_program_rids(dev);
1295 if (err) {
1296 printk(KERN_ERR "%s: Error %d configuring card\n",
1297 dev->name, err);
1298 return err;
1299 }
1300
1301 /* Fire things up again */
1302 hermes_set_irqmask(hw, ORINOCO_INTEN);
1303 err = hermes_enable_port(hw, 0);
1304 if (err) {
1305 printk(KERN_ERR "%s: Error %d enabling MAC port\n",
1306 dev->name, err);
1307 return err;
1308 }
1309
1310 netif_start_queue(dev);
1311
1312 return 0;
1313 }
1314
1315 int __orinoco_down(struct net_device *dev)
1316 {
1317 struct orinoco_private *priv = netdev_priv(dev);
1318 struct hermes *hw = &priv->hw;
1319 int err;
1320
1321 netif_stop_queue(dev);
1322
1323 if (! priv->hw_unavailable) {
1324 if (! priv->broken_disableport) {
1325 err = hermes_disable_port(hw, 0);
1326 if (err) {
1327 /* Some firmwares (e.g. Intersil 1.3.x) seem
1328 * to have problems disabling the port, oh
1329 * well, too bad. */
1330 printk(KERN_WARNING "%s: Error %d disabling MAC port\n",
1331 dev->name, err);
1332 priv->broken_disableport = 1;
1333 }
1334 }
1335 hermes_set_irqmask(hw, 0);
1336 hermes_write_regn(hw, EVACK, 0xffff);
1337 }
1338
1339 /* firmware will have to reassociate */
1340 netif_carrier_off(dev);
1341 priv->last_linkstatus = 0xffff;
1342
1343 return 0;
1344 }
1345
1346 static int orinoco_allocate_fid(struct net_device *dev)
1347 {
1348 struct orinoco_private *priv = netdev_priv(dev);
1349 struct hermes *hw = &priv->hw;
1350 int err;
1351
1352 err = hermes_allocate(hw, priv->nicbuf_size, &priv->txfid);
1353 if (err == -EIO && priv->nicbuf_size > TX_NICBUF_SIZE_BUG) {
1354 /* Try workaround for old Symbol firmware bug */
1355 printk(KERN_WARNING "%s: firmware ALLOC bug detected "
1356 "(old Symbol firmware?). Trying to work around... ",
1357 dev->name);
1358
1359 priv->nicbuf_size = TX_NICBUF_SIZE_BUG;
1360 err = hermes_allocate(hw, priv->nicbuf_size, &priv->txfid);
1361 if (err)
1362 printk("failed!\n");
1363 else
1364 printk("ok.\n");
1365 }
1366
1367 return err;
1368 }
1369
1370 int orinoco_reinit_firmware(struct net_device *dev)
1371 {
1372 struct orinoco_private *priv = netdev_priv(dev);
1373 struct hermes *hw = &priv->hw;
1374 int err;
1375
1376 err = hermes_init(hw);
1377 if (!err)
1378 err = orinoco_allocate_fid(dev);
1379
1380 return err;
1381 }
1382
1383 static int __orinoco_hw_set_bitrate(struct orinoco_private *priv)
1384 {
1385 hermes_t *hw = &priv->hw;
1386 int err = 0;
1387
1388 if (priv->bitratemode >= BITRATE_TABLE_SIZE) {
1389 printk(KERN_ERR "%s: BUG: Invalid bitrate mode %d\n",
1390 priv->ndev->name, priv->bitratemode);
1391 return -EINVAL;
1392 }
1393
1394 switch (priv->firmware_type) {
1395 case FIRMWARE_TYPE_AGERE:
1396 err = hermes_write_wordrec(hw, USER_BAP,
1397 HERMES_RID_CNFTXRATECONTROL,
1398 bitrate_table[priv->bitratemode].agere_txratectrl);
1399 break;
1400 case FIRMWARE_TYPE_INTERSIL:
1401 case FIRMWARE_TYPE_SYMBOL:
1402 err = hermes_write_wordrec(hw, USER_BAP,
1403 HERMES_RID_CNFTXRATECONTROL,
1404 bitrate_table[priv->bitratemode].intersil_txratectrl);
1405 break;
1406 default:
1407 BUG();
1408 }
1409
1410 return err;
1411 }
1412
1413 /* Set fixed AP address */
1414 static int __orinoco_hw_set_wap(struct orinoco_private *priv)
1415 {
1416 int roaming_flag;
1417 int err = 0;
1418 hermes_t *hw = &priv->hw;
1419
1420 switch (priv->firmware_type) {
1421 case FIRMWARE_TYPE_AGERE:
1422 /* not supported */
1423 break;
1424 case FIRMWARE_TYPE_INTERSIL:
1425 if (priv->bssid_fixed)
1426 roaming_flag = 2;
1427 else
1428 roaming_flag = 1;
1429
1430 err = hermes_write_wordrec(hw, USER_BAP,
1431 HERMES_RID_CNFROAMINGMODE,
1432 roaming_flag);
1433 break;
1434 case FIRMWARE_TYPE_SYMBOL:
1435 err = HERMES_WRITE_RECORD(hw, USER_BAP,
1436 HERMES_RID_CNFMANDATORYBSSID_SYMBOL,
1437 &priv->desired_bssid);
1438 break;
1439 }
1440 return err;
1441 }
1442
1443 /* Change the WEP keys and/or the current keys. Can be called
1444 * either from __orinoco_hw_setup_wep() or directly from
1445 * orinoco_ioctl_setiwencode(). In the later case the association
1446 * with the AP is not broken (if the firmware can handle it),
1447 * which is needed for 802.1x implementations. */
1448 static int __orinoco_hw_setup_wepkeys(struct orinoco_private *priv)
1449 {
1450 hermes_t *hw = &priv->hw;
1451 int err = 0;
1452
1453 switch (priv->firmware_type) {
1454 case FIRMWARE_TYPE_AGERE:
1455 err = HERMES_WRITE_RECORD(hw, USER_BAP,
1456 HERMES_RID_CNFWEPKEYS_AGERE,
1457 &priv->keys);
1458 if (err)
1459 return err;
1460 err = hermes_write_wordrec(hw, USER_BAP,
1461 HERMES_RID_CNFTXKEY_AGERE,
1462 priv->tx_key);
1463 if (err)
1464 return err;
1465 break;
1466 case FIRMWARE_TYPE_INTERSIL:
1467 case FIRMWARE_TYPE_SYMBOL:
1468 {
1469 int keylen;
1470 int i;
1471
1472 /* Force uniform key length to work around firmware bugs */
1473 keylen = le16_to_cpu(priv->keys[priv->tx_key].len);
1474
1475 if (keylen > LARGE_KEY_SIZE) {
1476 printk(KERN_ERR "%s: BUG: Key %d has oversize length %d.\n",
1477 priv->ndev->name, priv->tx_key, keylen);
1478 return -E2BIG;
1479 }
1480
1481 /* Write all 4 keys */
1482 for(i = 0; i < ORINOCO_MAX_KEYS; i++) {
1483 err = hermes_write_ltv(hw, USER_BAP,
1484 HERMES_RID_CNFDEFAULTKEY0 + i,
1485 HERMES_BYTES_TO_RECLEN(keylen),
1486 priv->keys[i].data);
1487 if (err)
1488 return err;
1489 }
1490
1491 /* Write the index of the key used in transmission */
1492 err = hermes_write_wordrec(hw, USER_BAP,
1493 HERMES_RID_CNFWEPDEFAULTKEYID,
1494 priv->tx_key);
1495 if (err)
1496 return err;
1497 }
1498 break;
1499 }
1500
1501 return 0;
1502 }
1503
1504 static int __orinoco_hw_setup_wep(struct orinoco_private *priv)
1505 {
1506 hermes_t *hw = &priv->hw;
1507 int err = 0;
1508 int master_wep_flag;
1509 int auth_flag;
1510
1511 if (priv->wep_on)
1512 __orinoco_hw_setup_wepkeys(priv);
1513
1514 if (priv->wep_restrict)
1515 auth_flag = HERMES_AUTH_SHARED_KEY;
1516 else
1517 auth_flag = HERMES_AUTH_OPEN;
1518
1519 switch (priv->firmware_type) {
1520 case FIRMWARE_TYPE_AGERE: /* Agere style WEP */
1521 if (priv->wep_on) {
1522 /* Enable the shared-key authentication. */
1523 err = hermes_write_wordrec(hw, USER_BAP,
1524 HERMES_RID_CNFAUTHENTICATION_AGERE,
1525 auth_flag);
1526 }
1527 err = hermes_write_wordrec(hw, USER_BAP,
1528 HERMES_RID_CNFWEPENABLED_AGERE,
1529 priv->wep_on);
1530 if (err)
1531 return err;
1532 break;
1533
1534 case FIRMWARE_TYPE_INTERSIL: /* Intersil style WEP */
1535 case FIRMWARE_TYPE_SYMBOL: /* Symbol style WEP */
1536 if (priv->wep_on) {
1537 if (priv->wep_restrict ||
1538 (priv->firmware_type == FIRMWARE_TYPE_SYMBOL))
1539 master_wep_flag = HERMES_WEP_PRIVACY_INVOKED |
1540 HERMES_WEP_EXCL_UNENCRYPTED;
1541 else
1542 master_wep_flag = HERMES_WEP_PRIVACY_INVOKED;
1543
1544 err = hermes_write_wordrec(hw, USER_BAP,
1545 HERMES_RID_CNFAUTHENTICATION,
1546 auth_flag);
1547 if (err)
1548 return err;
1549 } else
1550 master_wep_flag = 0;
1551
1552 if (priv->iw_mode == IW_MODE_MONITOR)
1553 master_wep_flag |= HERMES_WEP_HOST_DECRYPT;
1554
1555 /* Master WEP setting : on/off */
1556 err = hermes_write_wordrec(hw, USER_BAP,
1557 HERMES_RID_CNFWEPFLAGS_INTERSIL,
1558 master_wep_flag);
1559 if (err)
1560 return err;
1561
1562 break;
1563 }
1564
1565 return 0;
1566 }
1567
1568 static int __orinoco_program_rids(struct net_device *dev)
1569 {
1570 struct orinoco_private *priv = netdev_priv(dev);
1571 hermes_t *hw = &priv->hw;
1572 int err;
1573 struct hermes_idstring idbuf;
1574
1575 /* Set the MAC address */
1576 err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFOWNMACADDR,
1577 HERMES_BYTES_TO_RECLEN(ETH_ALEN), dev->dev_addr);
1578 if (err) {
1579 printk(KERN_ERR "%s: Error %d setting MAC address\n",
1580 dev->name, err);
1581 return err;
1582 }
1583
1584 /* Set up the link mode */
1585 err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFPORTTYPE,
1586 priv->port_type);
1587 if (err) {
1588 printk(KERN_ERR "%s: Error %d setting port type\n",
1589 dev->name, err);
1590 return err;
1591 }
1592 /* Set the channel/frequency */
1593 if (priv->channel != 0 && priv->iw_mode != IW_MODE_INFRA) {
1594 err = hermes_write_wordrec(hw, USER_BAP,
1595 HERMES_RID_CNFOWNCHANNEL,
1596 priv->channel);
1597 if (err) {
1598 printk(KERN_ERR "%s: Error %d setting channel %d\n",
1599 dev->name, err, priv->channel);
1600 return err;
1601 }
1602 }
1603
1604 if (priv->has_ibss) {
1605 u16 createibss;
1606
1607 if ((strlen(priv->desired_essid) == 0) && (priv->createibss)) {
1608 printk(KERN_WARNING "%s: This firmware requires an "
1609 "ESSID in IBSS-Ad-Hoc mode.\n", dev->name);
1610 /* With wvlan_cs, in this case, we would crash.
1611 * hopefully, this driver will behave better...
1612 * Jean II */
1613 createibss = 0;
1614 } else {
1615 createibss = priv->createibss;
1616 }
1617
1618 err = hermes_write_wordrec(hw, USER_BAP,
1619 HERMES_RID_CNFCREATEIBSS,
1620 createibss);
1621 if (err) {
1622 printk(KERN_ERR "%s: Error %d setting CREATEIBSS\n",
1623 dev->name, err);
1624 return err;
1625 }
1626 }
1627
1628 /* Set the desired BSSID */
1629 err = __orinoco_hw_set_wap(priv);
1630 if (err) {
1631 printk(KERN_ERR "%s: Error %d setting AP address\n",
1632 dev->name, err);
1633 return err;
1634 }
1635 /* Set the desired ESSID */
1636 idbuf.len = cpu_to_le16(strlen(priv->desired_essid));
1637 memcpy(&idbuf.val, priv->desired_essid, sizeof(idbuf.val));
1638 /* WinXP wants partner to configure OWNSSID even in IBSS mode. (jimc) */
1639 err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFOWNSSID,
1640 HERMES_BYTES_TO_RECLEN(strlen(priv->desired_essid)+2),
1641 &idbuf);
1642 if (err) {
1643 printk(KERN_ERR "%s: Error %d setting OWNSSID\n",
1644 dev->name, err);
1645 return err;
1646 }
1647 err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFDESIREDSSID,
1648 HERMES_BYTES_TO_RECLEN(strlen(priv->desired_essid)+2),
1649 &idbuf);
1650 if (err) {
1651 printk(KERN_ERR "%s: Error %d setting DESIREDSSID\n",
1652 dev->name, err);
1653 return err;
1654 }
1655
1656 /* Set the station name */
1657 idbuf.len = cpu_to_le16(strlen(priv->nick));
1658 memcpy(&idbuf.val, priv->nick, sizeof(idbuf.val));
1659 err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFOWNNAME,
1660 HERMES_BYTES_TO_RECLEN(strlen(priv->nick)+2),
1661 &idbuf);
1662 if (err) {
1663 printk(KERN_ERR "%s: Error %d setting nickname\n",
1664 dev->name, err);
1665 return err;
1666 }
1667
1668 /* Set AP density */
1669 if (priv->has_sensitivity) {
1670 err = hermes_write_wordrec(hw, USER_BAP,
1671 HERMES_RID_CNFSYSTEMSCALE,
1672 priv->ap_density);
1673 if (err) {
1674 printk(KERN_WARNING "%s: Error %d setting SYSTEMSCALE. "
1675 "Disabling sensitivity control\n",
1676 dev->name, err);
1677
1678 priv->has_sensitivity = 0;
1679 }
1680 }
1681
1682 /* Set RTS threshold */
1683 err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFRTSTHRESHOLD,
1684 priv->rts_thresh);
1685 if (err) {
1686 printk(KERN_ERR "%s: Error %d setting RTS threshold\n",
1687 dev->name, err);
1688 return err;
1689 }
1690
1691 /* Set fragmentation threshold or MWO robustness */
1692 if (priv->has_mwo)
1693 err = hermes_write_wordrec(hw, USER_BAP,
1694 HERMES_RID_CNFMWOROBUST_AGERE,
1695 priv->mwo_robust);
1696 else
1697 err = hermes_write_wordrec(hw, USER_BAP,
1698 HERMES_RID_CNFFRAGMENTATIONTHRESHOLD,
1699 priv->frag_thresh);
1700 if (err) {
1701 printk(KERN_ERR "%s: Error %d setting fragmentation\n",
1702 dev->name, err);
1703 return err;
1704 }
1705
1706 /* Set bitrate */
1707 err = __orinoco_hw_set_bitrate(priv);
1708 if (err) {
1709 printk(KERN_ERR "%s: Error %d setting bitrate\n",
1710 dev->name, err);
1711 return err;
1712 }
1713
1714 /* Set power management */
1715 if (priv->has_pm) {
1716 err = hermes_write_wordrec(hw, USER_BAP,
1717 HERMES_RID_CNFPMENABLED,
1718 priv->pm_on);
1719 if (err) {
1720 printk(KERN_ERR "%s: Error %d setting up PM\n",
1721 dev->name, err);
1722 return err;
1723 }
1724
1725 err = hermes_write_wordrec(hw, USER_BAP,
1726 HERMES_RID_CNFMULTICASTRECEIVE,
1727 priv->pm_mcast);
1728 if (err) {
1729 printk(KERN_ERR "%s: Error %d setting up PM\n",
1730 dev->name, err);
1731 return err;
1732 }
1733 err = hermes_write_wordrec(hw, USER_BAP,
1734 HERMES_RID_CNFMAXSLEEPDURATION,
1735 priv->pm_period);
1736 if (err) {
1737 printk(KERN_ERR "%s: Error %d setting up PM\n",
1738 dev->name, err);
1739 return err;
1740 }
1741 err = hermes_write_wordrec(hw, USER_BAP,
1742 HERMES_RID_CNFPMHOLDOVERDURATION,
1743 priv->pm_timeout);
1744 if (err) {
1745 printk(KERN_ERR "%s: Error %d setting up PM\n",
1746 dev->name, err);
1747 return err;
1748 }
1749 }
1750
1751 /* Set preamble - only for Symbol so far... */
1752 if (priv->has_preamble) {
1753 err = hermes_write_wordrec(hw, USER_BAP,
1754 HERMES_RID_CNFPREAMBLE_SYMBOL,
1755 priv->preamble);
1756 if (err) {
1757 printk(KERN_ERR "%s: Error %d setting preamble\n",
1758 dev->name, err);
1759 return err;
1760 }
1761 }
1762
1763 /* Set up encryption */
1764 if (priv->has_wep) {
1765 err = __orinoco_hw_setup_wep(priv);
1766 if (err) {
1767 printk(KERN_ERR "%s: Error %d activating WEP\n",
1768 dev->name, err);
1769 return err;
1770 }
1771 }
1772
1773 if (priv->iw_mode == IW_MODE_MONITOR) {
1774 /* Enable monitor mode */
1775 dev->type = ARPHRD_IEEE80211;
1776 err = hermes_docmd_wait(hw, HERMES_CMD_TEST |
1777 HERMES_TEST_MONITOR, 0, NULL);
1778 } else {
1779 /* Disable monitor mode */
1780 dev->type = ARPHRD_ETHER;
1781 err = hermes_docmd_wait(hw, HERMES_CMD_TEST |
1782 HERMES_TEST_STOP, 0, NULL);
1783 }
1784 if (err)
1785 return err;
1786
1787 /* Set promiscuity / multicast*/
1788 priv->promiscuous = 0;
1789 priv->mc_count = 0;
1790
1791 /* FIXME: what about netif_tx_lock */
1792 __orinoco_set_multicast_list(dev);
1793
1794 return 0;
1795 }
1796
1797 /* FIXME: return int? */
1798 static void
1799 __orinoco_set_multicast_list(struct net_device *dev)
1800 {
1801 struct orinoco_private *priv = netdev_priv(dev);
1802 hermes_t *hw = &priv->hw;
1803 int err = 0;
1804 int promisc, mc_count;
1805
1806 /* The Hermes doesn't seem to have an allmulti mode, so we go
1807 * into promiscuous mode and let the upper levels deal. */
1808 if ( (dev->flags & IFF_PROMISC) || (dev->flags & IFF_ALLMULTI) ||
1809 (dev->mc_count > MAX_MULTICAST(priv)) ) {
1810 promisc = 1;
1811 mc_count = 0;
1812 } else {
1813 promisc = 0;
1814 mc_count = dev->mc_count;
1815 }
1816
1817 if (promisc != priv->promiscuous) {
1818 err = hermes_write_wordrec(hw, USER_BAP,
1819 HERMES_RID_CNFPROMISCUOUSMODE,
1820 promisc);
1821 if (err) {
1822 printk(KERN_ERR "%s: Error %d setting PROMISCUOUSMODE to 1.\n",
1823 dev->name, err);
1824 } else
1825 priv->promiscuous = promisc;
1826 }
1827
1828 if (! promisc && (mc_count || priv->mc_count) ) {
1829 struct dev_mc_list *p = dev->mc_list;
1830 struct hermes_multicast mclist;
1831 int i;
1832
1833 for (i = 0; i < mc_count; i++) {
1834 /* paranoia: is list shorter than mc_count? */
1835 BUG_ON(! p);
1836 /* paranoia: bad address size in list? */
1837 BUG_ON(p->dmi_addrlen != ETH_ALEN);
1838
1839 memcpy(mclist.addr[i], p->dmi_addr, ETH_ALEN);
1840 p = p->next;
1841 }
1842
1843 if (p)
1844 printk(KERN_WARNING "%s: Multicast list is "
1845 "longer than mc_count\n", dev->name);
1846
1847 err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFGROUPADDRESSES,
1848 HERMES_BYTES_TO_RECLEN(priv->mc_count * ETH_ALEN),
1849 &mclist);
1850 if (err)
1851 printk(KERN_ERR "%s: Error %d setting multicast list.\n",
1852 dev->name, err);
1853 else
1854 priv->mc_count = mc_count;
1855 }
1856
1857 /* Since we can set the promiscuous flag when it wasn't asked
1858 for, make sure the net_device knows about it. */
1859 if (priv->promiscuous)
1860 dev->flags |= IFF_PROMISC;
1861 else
1862 dev->flags &= ~IFF_PROMISC;
1863 }
1864
1865 /* This must be called from user context, without locks held - use
1866 * schedule_work() */
1867 static void orinoco_reset(struct net_device *dev)
1868 {
1869 struct orinoco_private *priv = netdev_priv(dev);
1870 struct hermes *hw = &priv->hw;
1871 int err;
1872 unsigned long flags;
1873
1874 if (orinoco_lock(priv, &flags) != 0)
1875 /* When the hardware becomes available again, whatever
1876 * detects that is responsible for re-initializing
1877 * it. So no need for anything further */
1878 return;
1879
1880 netif_stop_queue(dev);
1881
1882 /* Shut off interrupts. Depending on what state the hardware
1883 * is in, this might not work, but we'll try anyway */
1884 hermes_set_irqmask(hw, 0);
1885 hermes_write_regn(hw, EVACK, 0xffff);
1886
1887 priv->hw_unavailable++;
1888 priv->last_linkstatus = 0xffff; /* firmware will have to reassociate */
1889 netif_carrier_off(dev);
1890
1891 orinoco_unlock(priv, &flags);
1892
1893 /* Scanning support: Cleanup of driver struct */
1894 kfree(priv->scan_result);
1895 priv->scan_result = NULL;
1896 priv->scan_inprogress = 0;
1897
1898 if (priv->hard_reset) {
1899 err = (*priv->hard_reset)(priv);
1900 if (err) {
1901 printk(KERN_ERR "%s: orinoco_reset: Error %d "
1902 "performing hard reset\n", dev->name, err);
1903 goto disable;
1904 }
1905 }
1906
1907 err = orinoco_reinit_firmware(dev);
1908 if (err) {
1909 printk(KERN_ERR "%s: orinoco_reset: Error %d re-initializing firmware\n",
1910 dev->name, err);
1911 goto disable;
1912 }
1913
1914 spin_lock_irq(&priv->lock); /* This has to be called from user context */
1915
1916 priv->hw_unavailable--;
1917
1918 /* priv->open or priv->hw_unavailable might have changed while
1919 * we dropped the lock */
1920 if (priv->open && (! priv->hw_unavailable)) {
1921 err = __orinoco_up(dev);
1922 if (err) {
1923 printk(KERN_ERR "%s: orinoco_reset: Error %d reenabling card\n",
1924 dev->name, err);
1925 } else
1926 dev->trans_start = jiffies;
1927 }
1928
1929 spin_unlock_irq(&priv->lock);
1930
1931 return;
1932 disable:
1933 hermes_set_irqmask(hw, 0);
1934 netif_device_detach(dev);
1935 printk(KERN_ERR "%s: Device has been disabled!\n", dev->name);
1936 }
1937
1938 /********************************************************************/
1939 /* Interrupt handler */
1940 /********************************************************************/
1941
1942 static void __orinoco_ev_tick(struct net_device *dev, hermes_t *hw)
1943 {
1944 printk(KERN_DEBUG "%s: TICK\n", dev->name);
1945 }
1946
1947 static void __orinoco_ev_wterr(struct net_device *dev, hermes_t *hw)
1948 {
1949 /* This seems to happen a fair bit under load, but ignoring it
1950 seems to work fine...*/
1951 printk(KERN_DEBUG "%s: MAC controller error (WTERR). Ignoring.\n",
1952 dev->name);
1953 }
1954
1955 irqreturn_t orinoco_interrupt(int irq, void *dev_id, struct pt_regs *regs)
1956 {
1957 struct net_device *dev = (struct net_device *)dev_id;
1958 struct orinoco_private *priv = netdev_priv(dev);
1959 hermes_t *hw = &priv->hw;
1960 int count = MAX_IRQLOOPS_PER_IRQ;
1961 u16 evstat, events;
1962 /* These are used to detect a runaway interrupt situation */
1963 /* If we get more than MAX_IRQLOOPS_PER_JIFFY iterations in a jiffy,
1964 * we panic and shut down the hardware */
1965 static int last_irq_jiffy = 0; /* jiffies value the last time
1966 * we were called */
1967 static int loops_this_jiffy = 0;
1968 unsigned long flags;
1969
1970 if (orinoco_lock(priv, &flags) != 0) {
1971 /* If hw is unavailable - we don't know if the irq was
1972 * for us or not */
1973 return IRQ_HANDLED;
1974 }
1975
1976 evstat = hermes_read_regn(hw, EVSTAT);
1977 events = evstat & hw->inten;
1978 if (! events) {
1979 orinoco_unlock(priv, &flags);
1980 return IRQ_NONE;
1981 }
1982
1983 if (jiffies != last_irq_jiffy)
1984 loops_this_jiffy = 0;
1985 last_irq_jiffy = jiffies;
1986
1987 while (events && count--) {
1988 if (++loops_this_jiffy > MAX_IRQLOOPS_PER_JIFFY) {
1989 printk(KERN_WARNING "%s: IRQ handler is looping too "
1990 "much! Resetting.\n", dev->name);
1991 /* Disable interrupts for now */
1992 hermes_set_irqmask(hw, 0);
1993 schedule_work(&priv->reset_work);
1994 break;
1995 }
1996
1997 /* Check the card hasn't been removed */
1998 if (! hermes_present(hw)) {
1999 DEBUG(0, "orinoco_interrupt(): card removed\n");
2000 break;
2001 }
2002
2003 if (events & HERMES_EV_TICK)
2004 __orinoco_ev_tick(dev, hw);
2005 if (events & HERMES_EV_WTERR)
2006 __orinoco_ev_wterr(dev, hw);
2007 if (events & HERMES_EV_INFDROP)
2008 __orinoco_ev_infdrop(dev, hw);
2009 if (events & HERMES_EV_INFO)
2010 __orinoco_ev_info(dev, hw);
2011 if (events & HERMES_EV_RX)
2012 __orinoco_ev_rx(dev, hw);
2013 if (events & HERMES_EV_TXEXC)
2014 __orinoco_ev_txexc(dev, hw);
2015 if (events & HERMES_EV_TX)
2016 __orinoco_ev_tx(dev, hw);
2017 if (events & HERMES_EV_ALLOC)
2018 __orinoco_ev_alloc(dev, hw);
2019
2020 hermes_write_regn(hw, EVACK, evstat);
2021
2022 evstat = hermes_read_regn(hw, EVSTAT);
2023 events = evstat & hw->inten;
2024 };
2025
2026 orinoco_unlock(priv, &flags);
2027 return IRQ_HANDLED;
2028 }
2029
2030 /********************************************************************/
2031 /* Initialization */
2032 /********************************************************************/
2033
2034 struct comp_id {
2035 u16 id, variant, major, minor;
2036 } __attribute__ ((packed));
2037
2038 static inline fwtype_t determine_firmware_type(struct comp_id *nic_id)
2039 {
2040 if (nic_id->id < 0x8000)
2041 return FIRMWARE_TYPE_AGERE;
2042 else if (nic_id->id == 0x8000 && nic_id->major == 0)
2043 return FIRMWARE_TYPE_SYMBOL;
2044 else
2045 return FIRMWARE_TYPE_INTERSIL;
2046 }
2047
2048 /* Set priv->firmware type, determine firmware properties */
2049 static int determine_firmware(struct net_device *dev)
2050 {
2051 struct orinoco_private *priv = netdev_priv(dev);
2052 hermes_t *hw = &priv->hw;
2053 int err;
2054 struct comp_id nic_id, sta_id;
2055 unsigned int firmver;
2056 char tmp[SYMBOL_MAX_VER_LEN+1];
2057
2058 /* Get the hardware version */
2059 err = HERMES_READ_RECORD(hw, USER_BAP, HERMES_RID_NICID, &nic_id);
2060 if (err) {
2061 printk(KERN_ERR "%s: Cannot read hardware identity: error %d\n",
2062 dev->name, err);
2063 return err;
2064 }
2065
2066 le16_to_cpus(&nic_id.id);
2067 le16_to_cpus(&nic_id.variant);
2068 le16_to_cpus(&nic_id.major);
2069 le16_to_cpus(&nic_id.minor);
2070 printk(KERN_DEBUG "%s: Hardware identity %04x:%04x:%04x:%04x\n",
2071 dev->name, nic_id.id, nic_id.variant,
2072 nic_id.major, nic_id.minor);
2073
2074 priv->firmware_type = determine_firmware_type(&nic_id);
2075
2076 /* Get the firmware version */
2077 err = HERMES_READ_RECORD(hw, USER_BAP, HERMES_RID_STAID, &sta_id);
2078 if (err) {
2079 printk(KERN_ERR "%s: Cannot read station identity: error %d\n",
2080 dev->name, err);
2081 return err;
2082 }
2083
2084 le16_to_cpus(&sta_id.id);
2085 le16_to_cpus(&sta_id.variant);
2086 le16_to_cpus(&sta_id.major);
2087 le16_to_cpus(&sta_id.minor);
2088 printk(KERN_DEBUG "%s: Station identity %04x:%04x:%04x:%04x\n",
2089 dev->name, sta_id.id, sta_id.variant,
2090 sta_id.major, sta_id.minor);
2091
2092 switch (sta_id.id) {
2093 case 0x15:
2094 printk(KERN_ERR "%s: Primary firmware is active\n",
2095 dev->name);
2096 return -ENODEV;
2097 case 0x14b:
2098 printk(KERN_ERR "%s: Tertiary firmware is active\n",
2099 dev->name);
2100 return -ENODEV;
2101 case 0x1f: /* Intersil, Agere, Symbol Spectrum24 */
2102 case 0x21: /* Symbol Spectrum24 Trilogy */
2103 break;
2104 default:
2105 printk(KERN_NOTICE "%s: Unknown station ID, please report\n",
2106 dev->name);
2107 break;
2108 }
2109
2110 /* Default capabilities */
2111 priv->has_sensitivity = 1;
2112 priv->has_mwo = 0;
2113 priv->has_preamble = 0;
2114 priv->has_port3 = 1;
2115 priv->has_ibss = 1;
2116 priv->has_wep = 0;
2117 priv->has_big_wep = 0;
2118
2119 /* Determine capabilities from the firmware version */
2120 switch (priv->firmware_type) {
2121 case FIRMWARE_TYPE_AGERE:
2122 /* Lucent Wavelan IEEE, Lucent Orinoco, Cabletron RoamAbout,
2123 ELSA, Melco, HP, IBM, Dell 1150, Compaq 110/210 */
2124 snprintf(priv->fw_name, sizeof(priv->fw_name) - 1,
2125 "Lucent/Agere %d.%02d", sta_id.major, sta_id.minor);
2126
2127 firmver = ((unsigned long)sta_id.major << 16) | sta_id.minor;
2128
2129 priv->has_ibss = (firmver >= 0x60006);
2130 priv->has_wep = (firmver >= 0x40020);
2131 priv->has_big_wep = 1; /* FIXME: this is wrong - how do we tell
2132 Gold cards from the others? */
2133 priv->has_mwo = (firmver >= 0x60000);
2134 priv->has_pm = (firmver >= 0x40020); /* Don't work in 7.52 ? */
2135 priv->ibss_port = 1;
2136 priv->has_hostscan = (firmver >= 0x8000a);
2137 priv->broken_monitor = (firmver >= 0x80000);
2138
2139 /* Tested with Agere firmware :
2140 * 1.16 ; 4.08 ; 4.52 ; 6.04 ; 6.16 ; 7.28 => Jean II
2141 * Tested CableTron firmware : 4.32 => Anton */
2142 break;
2143 case FIRMWARE_TYPE_SYMBOL:
2144 /* Symbol , 3Com AirConnect, Intel, Ericsson WLAN */
2145 /* Intel MAC : 00:02:B3:* */
2146 /* 3Com MAC : 00:50:DA:* */
2147 memset(tmp, 0, sizeof(tmp));
2148 /* Get the Symbol firmware version */
2149 err = hermes_read_ltv(hw, USER_BAP,
2150 HERMES_RID_SECONDARYVERSION_SYMBOL,
2151 SYMBOL_MAX_VER_LEN, NULL, &tmp);
2152 if (err) {
2153 printk(KERN_WARNING
2154 "%s: Error %d reading Symbol firmware info. Wildly guessing capabilities...\n",
2155 dev->name, err);
2156 firmver = 0;
2157 tmp[0] = '\0';
2158 } else {
2159 /* The firmware revision is a string, the format is
2160 * something like : "V2.20-01".
2161 * Quick and dirty parsing... - Jean II
2162 */
2163 firmver = ((tmp[1] - '0') << 16) | ((tmp[3] - '0') << 12)
2164 | ((tmp[4] - '0') << 8) | ((tmp[6] - '0') << 4)
2165 | (tmp[7] - '0');
2166
2167 tmp[SYMBOL_MAX_VER_LEN] = '\0';
2168 }
2169
2170 snprintf(priv->fw_name, sizeof(priv->fw_name) - 1,
2171 "Symbol %s", tmp);
2172
2173 priv->has_ibss = (firmver >= 0x20000);
2174 priv->has_wep = (firmver >= 0x15012);
2175 priv->has_big_wep = (firmver >= 0x20000);
2176 priv->has_pm = (firmver >= 0x20000 && firmver < 0x22000) ||
2177 (firmver >= 0x29000 && firmver < 0x30000) ||
2178 firmver >= 0x31000;
2179 priv->has_preamble = (firmver >= 0x20000);
2180 priv->ibss_port = 4;
2181 priv->broken_disableport = (firmver == 0x25013) ||
2182 (firmver >= 0x30000 && firmver <= 0x31000);
2183 priv->has_hostscan = (firmver >= 0x31001) ||
2184 (firmver >= 0x29057 && firmver < 0x30000);
2185 /* Tested with Intel firmware : 0x20015 => Jean II */
2186 /* Tested with 3Com firmware : 0x15012 & 0x22001 => Jean II */
2187 break;
2188 case FIRMWARE_TYPE_INTERSIL:
2189 /* D-Link, Linksys, Adtron, ZoomAir, and many others...
2190 * Samsung, Compaq 100/200 and Proxim are slightly
2191 * different and less well tested */
2192 /* D-Link MAC : 00:40:05:* */
2193 /* Addtron MAC : 00:90:D1:* */
2194 snprintf(priv->fw_name, sizeof(priv->fw_name) - 1,
2195 "Intersil %d.%d.%d", sta_id.major, sta_id.minor,
2196 sta_id.variant);
2197
2198 firmver = ((unsigned long)sta_id.major << 16) |
2199 ((unsigned long)sta_id.minor << 8) | sta_id.variant;
2200
2201 priv->has_ibss = (firmver >= 0x000700); /* FIXME */
2202 priv->has_big_wep = priv->has_wep = (firmver >= 0x000800);
2203 priv->has_pm = (firmver >= 0x000700);
2204 priv->has_hostscan = (firmver >= 0x010301);
2205
2206 if (firmver >= 0x000800)
2207 priv->ibss_port = 0;
2208 else {
2209 printk(KERN_NOTICE "%s: Intersil firmware earlier "
2210 "than v0.8.x - several features not supported\n",
2211 dev->name);
2212 priv->ibss_port = 1;
2213 }
2214 break;
2215 }
2216 printk(KERN_DEBUG "%s: Firmware determined as %s\n", dev->name,
2217 priv->fw_name);
2218
2219 return 0;
2220 }
2221
2222 static int orinoco_init(struct net_device *dev)
2223 {
2224 struct orinoco_private *priv = netdev_priv(dev);
2225 hermes_t *hw = &priv->hw;
2226 int err = 0;
2227 struct hermes_idstring nickbuf;
2228 u16 reclen;
2229 int len;
2230
2231 /* No need to lock, the hw_unavailable flag is already set in
2232 * alloc_orinocodev() */
2233 priv->nicbuf_size = IEEE80211_FRAME_LEN + ETH_HLEN;
2234
2235 /* Initialize the firmware */
2236 err = hermes_init(hw);
2237 if (err != 0) {
2238 printk(KERN_ERR "%s: failed to initialize firmware (err = %d)\n",
2239 dev->name, err);
2240 goto out;
2241 }
2242
2243 err = determine_firmware(dev);
2244 if (err != 0) {
2245 printk(KERN_ERR "%s: Incompatible firmware, aborting\n",
2246 dev->name);
2247 goto out;
2248 }
2249
2250 if (priv->has_port3)
2251 printk(KERN_DEBUG "%s: Ad-hoc demo mode supported\n", dev->name);
2252 if (priv->has_ibss)
2253 printk(KERN_DEBUG "%s: IEEE standard IBSS ad-hoc mode supported\n",
2254 dev->name);
2255 if (priv->has_wep) {
2256 printk(KERN_DEBUG "%s: WEP supported, ", dev->name);
2257 if (priv->has_big_wep)
2258 printk("104-bit key\n");
2259 else
2260 printk("40-bit key\n");
2261 }
2262
2263 /* Get the MAC address */
2264 err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CNFOWNMACADDR,
2265 ETH_ALEN, NULL, dev->dev_addr);
2266 if (err) {
2267 printk(KERN_WARNING "%s: failed to read MAC address!\n",
2268 dev->name);
2269 goto out;
2270 }
2271
2272 printk(KERN_DEBUG "%s: MAC address %02X:%02X:%02X:%02X:%02X:%02X\n",
2273 dev->name, dev->dev_addr[0], dev->dev_addr[1],
2274 dev->dev_addr[2], dev->dev_addr[3], dev->dev_addr[4],
2275 dev->dev_addr[5]);
2276
2277 /* Get the station name */
2278 err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CNFOWNNAME,
2279 sizeof(nickbuf), &reclen, &nickbuf);
2280 if (err) {
2281 printk(KERN_ERR "%s: failed to read station name\n",
2282 dev->name);
2283 goto out;
2284 }
2285 if (nickbuf.len)
2286 len = min(IW_ESSID_MAX_SIZE, (int)le16_to_cpu(nickbuf.len));
2287 else
2288 len = min(IW_ESSID_MAX_SIZE, 2 * reclen);
2289 memcpy(priv->nick, &nickbuf.val, len);
2290 priv->nick[len] = '\0';
2291
2292 printk(KERN_DEBUG "%s: Station name \"%s\"\n", dev->name, priv->nick);
2293
2294 err = orinoco_allocate_fid(dev);
2295 if (err) {
2296 printk(KERN_ERR "%s: failed to allocate NIC buffer!\n",
2297 dev->name);
2298 goto out;
2299 }
2300
2301 /* Get allowed channels */
2302 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CHANNELLIST,
2303 &priv->channel_mask);
2304 if (err) {
2305 printk(KERN_ERR "%s: failed to read channel list!\n",
2306 dev->name);
2307 goto out;
2308 }
2309
2310 /* Get initial AP density */
2311 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFSYSTEMSCALE,
2312 &priv->ap_density);
2313 if (err || priv->ap_density < 1 || priv->ap_density > 3) {
2314 priv->has_sensitivity = 0;
2315 }
2316
2317 /* Get initial RTS threshold */
2318 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFRTSTHRESHOLD,
2319 &priv->rts_thresh);
2320 if (err) {
2321 printk(KERN_ERR "%s: failed to read RTS threshold!\n",
2322 dev->name);
2323 goto out;
2324 }
2325
2326 /* Get initial fragmentation settings */
2327 if (priv->has_mwo)
2328 err = hermes_read_wordrec(hw, USER_BAP,
2329 HERMES_RID_CNFMWOROBUST_AGERE,
2330 &priv->mwo_robust);
2331 else
2332 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFFRAGMENTATIONTHRESHOLD,
2333 &priv->frag_thresh);
2334 if (err) {
2335 printk(KERN_ERR "%s: failed to read fragmentation settings!\n",
2336 dev->name);
2337 goto out;
2338 }
2339
2340 /* Power management setup */
2341 if (priv->has_pm) {
2342 priv->pm_on = 0;
2343 priv->pm_mcast = 1;
2344 err = hermes_read_wordrec(hw, USER_BAP,
2345 HERMES_RID_CNFMAXSLEEPDURATION,
2346 &priv->pm_period);
2347 if (err) {
2348 printk(KERN_ERR "%s: failed to read power management period!\n",
2349 dev->name);
2350 goto out;
2351 }
2352 err = hermes_read_wordrec(hw, USER_BAP,
2353 HERMES_RID_CNFPMHOLDOVERDURATION,
2354 &priv->pm_timeout);
2355 if (err) {
2356 printk(KERN_ERR "%s: failed to read power management timeout!\n",
2357 dev->name);
2358 goto out;
2359 }
2360 }
2361
2362 /* Preamble setup */
2363 if (priv->has_preamble) {
2364 err = hermes_read_wordrec(hw, USER_BAP,
2365 HERMES_RID_CNFPREAMBLE_SYMBOL,
2366 &priv->preamble);
2367 if (err)
2368 goto out;
2369 }
2370
2371 /* Set up the default configuration */
2372 priv->iw_mode = IW_MODE_INFRA;
2373 /* By default use IEEE/IBSS ad-hoc mode if we have it */
2374 priv->prefer_port3 = priv->has_port3 && (! priv->has_ibss);
2375 set_port_type(priv);
2376 priv->channel = 0; /* use firmware default */
2377
2378 priv->promiscuous = 0;
2379 priv->wep_on = 0;
2380 priv->tx_key = 0;
2381
2382 /* Make the hardware available, as long as it hasn't been
2383 * removed elsewhere (e.g. by PCMCIA hot unplug) */
2384 spin_lock_irq(&priv->lock);
2385 priv->hw_unavailable--;
2386 spin_unlock_irq(&priv->lock);
2387
2388 printk(KERN_DEBUG "%s: ready\n", dev->name);
2389
2390 out:
2391 return err;
2392 }
2393
2394 struct net_device *alloc_orinocodev(int sizeof_card,
2395 int (*hard_reset)(struct orinoco_private *))
2396 {
2397 struct net_device *dev;
2398 struct orinoco_private *priv;
2399
2400 dev = alloc_etherdev(sizeof(struct orinoco_private) + sizeof_card);
2401 if (! dev)
2402 return NULL;
2403 priv = netdev_priv(dev);
2404 priv->ndev = dev;
2405 if (sizeof_card)
2406 priv->card = (void *)((unsigned long)priv
2407 + sizeof(struct orinoco_private));
2408 else
2409 priv->card = NULL;
2410
2411 /* Setup / override net_device fields */
2412 dev->init = orinoco_init;
2413 dev->hard_start_xmit = orinoco_xmit;
2414 dev->tx_timeout = orinoco_tx_timeout;
2415 dev->watchdog_timeo = HZ; /* 1 second timeout */
2416 dev->get_stats = orinoco_get_stats;
2417 dev->ethtool_ops = &orinoco_ethtool_ops;
2418 dev->wireless_handlers = (struct iw_handler_def *)&orinoco_handler_def;
2419 #ifdef WIRELESS_SPY
2420 priv->wireless_data.spy_data = &priv->spy_data;
2421 dev->wireless_data = &priv->wireless_data;
2422 #endif
2423 dev->change_mtu = orinoco_change_mtu;
2424 dev->set_multicast_list = orinoco_set_multicast_list;
2425 /* we use the default eth_mac_addr for setting the MAC addr */
2426
2427 /* Set up default callbacks */
2428 dev->open = orinoco_open;
2429 dev->stop = orinoco_stop;
2430 priv->hard_reset = hard_reset;
2431
2432 spin_lock_init(&priv->lock);
2433 priv->open = 0;
2434 priv->hw_unavailable = 1; /* orinoco_init() must clear this
2435 * before anything else touches the
2436 * hardware */
2437 INIT_WORK(&priv->reset_work, (void (*)(void *))orinoco_reset, dev);
2438 INIT_WORK(&priv->join_work, (void (*)(void *))orinoco_join_ap, dev);
2439 INIT_WORK(&priv->wevent_work, (void (*)(void *))orinoco_send_wevents, dev);
2440
2441 netif_carrier_off(dev);
2442 priv->last_linkstatus = 0xffff;
2443
2444 return dev;
2445
2446 }
2447
2448 void free_orinocodev(struct net_device *dev)
2449 {
2450 struct orinoco_private *priv = netdev_priv(dev);
2451
2452 kfree(priv->scan_result);
2453 free_netdev(dev);
2454 }
2455
2456 /********************************************************************/
2457 /* Wireless extensions */
2458 /********************************************************************/
2459
2460 static int orinoco_hw_get_essid(struct orinoco_private *priv, int *active,
2461 char buf[IW_ESSID_MAX_SIZE+1])
2462 {
2463 hermes_t *hw = &priv->hw;
2464 int err = 0;
2465 struct hermes_idstring essidbuf;
2466 char *p = (char *)(&essidbuf.val);
2467 int len;
2468 unsigned long flags;
2469
2470 if (orinoco_lock(priv, &flags) != 0)
2471 return -EBUSY;
2472
2473 if (strlen(priv->desired_essid) > 0) {
2474 /* We read the desired SSID from the hardware rather
2475 than from priv->desired_essid, just in case the
2476 firmware is allowed to change it on us. I'm not
2477 sure about this */
2478 /* My guess is that the OWNSSID should always be whatever
2479 * we set to the card, whereas CURRENT_SSID is the one that
2480 * may change... - Jean II */
2481 u16 rid;
2482
2483 *active = 1;
2484
2485 rid = (priv->port_type == 3) ? HERMES_RID_CNFOWNSSID :
2486 HERMES_RID_CNFDESIREDSSID;
2487
2488 err = hermes_read_ltv(hw, USER_BAP, rid, sizeof(essidbuf),
2489 NULL, &essidbuf);
2490 if (err)
2491 goto fail_unlock;
2492 } else {
2493 *active = 0;
2494
2495 err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CURRENTSSID,
2496 sizeof(essidbuf), NULL, &essidbuf);
2497 if (err)
2498 goto fail_unlock;
2499 }
2500
2501 len = le16_to_cpu(essidbuf.len);
2502 BUG_ON(len > IW_ESSID_MAX_SIZE);
2503
2504 memset(buf, 0, IW_ESSID_MAX_SIZE+1);
2505 memcpy(buf, p, len);
2506 buf[len] = '\0';
2507
2508 fail_unlock:
2509 orinoco_unlock(priv, &flags);
2510
2511 return err;
2512 }
2513
2514 static long orinoco_hw_get_freq(struct orinoco_private *priv)
2515 {
2516
2517 hermes_t *hw = &priv->hw;
2518 int err = 0;
2519 u16 channel;
2520 long freq = 0;
2521 unsigned long flags;
2522
2523 if (orinoco_lock(priv, &flags) != 0)
2524 return -EBUSY;
2525
2526 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CURRENTCHANNEL, &channel);
2527 if (err)
2528 goto out;
2529
2530 /* Intersil firmware 1.3.5 returns 0 when the interface is down */
2531 if (channel == 0) {
2532 err = -EBUSY;
2533 goto out;
2534 }
2535
2536 if ( (channel < 1) || (channel > NUM_CHANNELS) ) {
2537 printk(KERN_WARNING "%s: Channel out of range (%d)!\n",
2538 priv->ndev->name, channel);
2539 err = -EBUSY;
2540 goto out;
2541
2542 }
2543 freq = channel_frequency[channel-1] * 100000;
2544
2545 out:
2546 orinoco_unlock(priv, &flags);
2547
2548 if (err > 0)
2549 err = -EBUSY;
2550 return err ? err : freq;
2551 }
2552
2553 static int orinoco_hw_get_bitratelist(struct orinoco_private *priv,
2554 int *numrates, s32 *rates, int max)
2555 {
2556 hermes_t *hw = &priv->hw;
2557 struct hermes_idstring list;
2558 unsigned char *p = (unsigned char *)&list.val;
2559 int err = 0;
2560 int num;
2561 int i;
2562 unsigned long flags;
2563
2564 if (orinoco_lock(priv, &flags) != 0)
2565 return -EBUSY;
2566
2567 err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_SUPPORTEDDATARATES,
2568 sizeof(list), NULL, &list);
2569 orinoco_unlock(priv, &flags);
2570
2571 if (err)
2572 return err;
2573
2574 num = le16_to_cpu(list.len);
2575 *numrates = num;
2576 num = min(num, max);
2577
2578 for (i = 0; i < num; i++) {
2579 rates[i] = (p[i] & 0x7f) * 500000; /* convert to bps */
2580 }
2581
2582 return 0;
2583 }
2584
2585 static int orinoco_ioctl_getname(struct net_device *dev,
2586 struct iw_request_info *info,
2587 char *name,
2588 char *extra)
2589 {
2590 struct orinoco_private *priv = netdev_priv(dev);
2591 int numrates;
2592 int err;
2593
2594 err = orinoco_hw_get_bitratelist(priv, &numrates, NULL, 0);
2595
2596 if (!err && (numrates > 2))
2597 strcpy(name, "IEEE 802.11b");
2598 else
2599 strcpy(name, "IEEE 802.11-DS");
2600
2601 return 0;
2602 }
2603
2604 static int orinoco_ioctl_setwap(struct net_device *dev,
2605 struct iw_request_info *info,
2606 struct sockaddr *ap_addr,
2607 char *extra)
2608 {
2609 struct orinoco_private *priv = netdev_priv(dev);
2610 int err = -EINPROGRESS; /* Call commit handler */
2611 unsigned long flags;
2612 static const u8 off_addr[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
2613 static const u8 any_addr[] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
2614
2615 if (orinoco_lock(priv, &flags) != 0)
2616 return -EBUSY;
2617
2618 /* Enable automatic roaming - no sanity checks are needed */
2619 if (memcmp(&ap_addr->sa_data, off_addr, ETH_ALEN) == 0 ||
2620 memcmp(&ap_addr->sa_data, any_addr, ETH_ALEN) == 0) {
2621 priv->bssid_fixed = 0;
2622 memset(priv->desired_bssid, 0, ETH_ALEN);
2623
2624 /* "off" means keep existing connection */
2625 if (ap_addr->sa_data[0] == 0) {
2626 __orinoco_hw_set_wap(priv);
2627 err = 0;
2628 }
2629 goto out;
2630 }
2631
2632 if (priv->firmware_type == FIRMWARE_TYPE_AGERE) {
2633 printk(KERN_WARNING "%s: Lucent/Agere firmware doesn't "
2634 "support manual roaming\n",
2635 dev->name);
2636 err = -EOPNOTSUPP;
2637 goto out;
2638 }
2639
2640 if (priv->iw_mode != IW_MODE_INFRA) {
2641 printk(KERN_WARNING "%s: Manual roaming supported only in "
2642 "managed mode\n", dev->name);
2643 err = -EOPNOTSUPP;
2644 goto out;
2645 }
2646
2647 /* Intersil firmware hangs without Desired ESSID */
2648 if (priv->firmware_type == FIRMWARE_TYPE_INTERSIL &&
2649 strlen(priv->desired_essid) == 0) {
2650 printk(KERN_WARNING "%s: Desired ESSID must be set for "
2651 "manual roaming\n", dev->name);
2652 err = -EOPNOTSUPP;
2653 goto out;
2654 }
2655
2656 /* Finally, enable manual roaming */
2657 priv->bssid_fixed = 1;
2658 memcpy(priv->desired_bssid, &ap_addr->sa_data, ETH_ALEN);
2659
2660 out:
2661 orinoco_unlock(priv, &flags);
2662 return err;
2663 }
2664
2665 static int orinoco_ioctl_getwap(struct net_device *dev,
2666 struct iw_request_info *info,
2667 struct sockaddr *ap_addr,
2668 char *extra)
2669 {
2670 struct orinoco_private *priv = netdev_priv(dev);
2671
2672 hermes_t *hw = &priv->hw;
2673 int err = 0;
2674 unsigned long flags;
2675
2676 if (orinoco_lock(priv, &flags) != 0)
2677 return -EBUSY;
2678
2679 ap_addr->sa_family = ARPHRD_ETHER;
2680 err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CURRENTBSSID,
2681 ETH_ALEN, NULL, ap_addr->sa_data);
2682
2683 orinoco_unlock(priv, &flags);
2684
2685 return err;
2686 }
2687
2688 static int orinoco_ioctl_setmode(struct net_device *dev,
2689 struct iw_request_info *info,
2690 u32 *mode,
2691 char *extra)
2692 {
2693 struct orinoco_private *priv = netdev_priv(dev);
2694 int err = -EINPROGRESS; /* Call commit handler */
2695 unsigned long flags;
2696
2697 if (priv->iw_mode == *mode)
2698 return 0;
2699
2700 if (orinoco_lock(priv, &flags) != 0)
2701 return -EBUSY;
2702
2703 switch (*mode) {
2704 case IW_MODE_ADHOC:
2705 if (!priv->has_ibss && !priv->has_port3)
2706 err = -EOPNOTSUPP;
2707 break;
2708
2709 case IW_MODE_INFRA:
2710 break;
2711
2712 case IW_MODE_MONITOR:
2713 if (priv->broken_monitor && !force_monitor) {
2714 printk(KERN_WARNING "%s: Monitor mode support is "
2715 "buggy in this firmware, not enabling\n",
2716 dev->name);
2717 err = -EOPNOTSUPP;
2718 }
2719 break;
2720
2721 default:
2722 err = -EOPNOTSUPP;
2723 break;
2724 }
2725
2726 if (err == -EINPROGRESS) {
2727 priv->iw_mode = *mode;
2728 set_port_type(priv);
2729 }
2730
2731 orinoco_unlock(priv, &flags);
2732
2733 return err;
2734 }
2735
2736 static int orinoco_ioctl_getmode(struct net_device *dev,
2737 struct iw_request_info *info,
2738 u32 *mode,
2739 char *extra)
2740 {
2741 struct orinoco_private *priv = netdev_priv(dev);
2742
2743 *mode = priv->iw_mode;
2744 return 0;
2745 }
2746
2747 static int orinoco_ioctl_getiwrange(struct net_device *dev,
2748 struct iw_request_info *info,
2749 struct iw_point *rrq,
2750 char *extra)
2751 {
2752 struct orinoco_private *priv = netdev_priv(dev);
2753 int err = 0;
2754 struct iw_range *range = (struct iw_range *) extra;
2755 int numrates;
2756 int i, k;
2757
2758 rrq->length = sizeof(struct iw_range);
2759 memset(range, 0, sizeof(struct iw_range));
2760
2761 range->we_version_compiled = WIRELESS_EXT;
2762 range->we_version_source = 14;
2763
2764 /* Set available channels/frequencies */
2765 range->num_channels = NUM_CHANNELS;
2766 k = 0;
2767 for (i = 0; i < NUM_CHANNELS; i++) {
2768 if (priv->channel_mask & (1 << i)) {
2769 range->freq[k].i = i + 1;
2770 range->freq[k].m = channel_frequency[i] * 100000;
2771 range->freq[k].e = 1;
2772 k++;
2773 }
2774
2775 if (k >= IW_MAX_FREQUENCIES)
2776 break;
2777 }
2778 range->num_frequency = k;
2779 range->sensitivity = 3;
2780
2781 if (priv->has_wep) {
2782 range->max_encoding_tokens = ORINOCO_MAX_KEYS;
2783 range->encoding_size[0] = SMALL_KEY_SIZE;
2784 range->num_encoding_sizes = 1;
2785
2786 if (priv->has_big_wep) {
2787 range->encoding_size[1] = LARGE_KEY_SIZE;
2788 range->num_encoding_sizes = 2;
2789 }
2790 }
2791
2792 if ((priv->iw_mode == IW_MODE_ADHOC) && (!SPY_NUMBER(priv))){
2793 /* Quality stats meaningless in ad-hoc mode */
2794 } else {
2795 range->max_qual.qual = 0x8b - 0x2f;
2796 range->max_qual.level = 0x2f - 0x95 - 1;
2797 range->max_qual.noise = 0x2f - 0x95 - 1;
2798 /* Need to get better values */
2799 range->avg_qual.qual = 0x24;
2800 range->avg_qual.level = 0xC2;
2801 range->avg_qual.noise = 0x9E;
2802 }
2803
2804 err = orinoco_hw_get_bitratelist(priv, &numrates,
2805 range->bitrate, IW_MAX_BITRATES);
2806 if (err)
2807 return err;
2808 range->num_bitrates = numrates;
2809
2810 /* Set an indication of the max TCP throughput in bit/s that we can
2811 * expect using this interface. May be use for QoS stuff...
2812 * Jean II */
2813 if (numrates > 2)
2814 range->throughput = 5 * 1000 * 1000; /* ~5 Mb/s */
2815 else
2816 range->throughput = 1.5 * 1000 * 1000; /* ~1.5 Mb/s */
2817
2818 range->min_rts = 0;
2819 range->max_rts = 2347;
2820 range->min_frag = 256;
2821 range->max_frag = 2346;
2822
2823 range->min_pmp = 0;
2824 range->max_pmp = 65535000;
2825 range->min_pmt = 0;
2826 range->max_pmt = 65535 * 1000; /* ??? */
2827 range->pmp_flags = IW_POWER_PERIOD;
2828 range->pmt_flags = IW_POWER_TIMEOUT;
2829 range->pm_capa = IW_POWER_PERIOD | IW_POWER_TIMEOUT | IW_POWER_UNICAST_R;
2830
2831 range->retry_capa = IW_RETRY_LIMIT | IW_RETRY_LIFETIME;
2832 range->retry_flags = IW_RETRY_LIMIT;
2833 range->r_time_flags = IW_RETRY_LIFETIME;
2834 range->min_retry = 0;
2835 range->max_retry = 65535; /* ??? */
2836 range->min_r_time = 0;
2837 range->max_r_time = 65535 * 1000; /* ??? */
2838
2839 /* Event capability (kernel) */
2840 IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
2841 /* Event capability (driver) */
2842 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWTHRSPY);
2843 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
2844 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
2845 IW_EVENT_CAPA_SET(range->event_capa, IWEVTXDROP);
2846
2847 return 0;
2848 }
2849
2850 static int orinoco_ioctl_setiwencode(struct net_device *dev,
2851 struct iw_request_info *info,
2852 struct iw_point *erq,
2853 char *keybuf)
2854 {
2855 struct orinoco_private *priv = netdev_priv(dev);
2856 int index = (erq->flags & IW_ENCODE_INDEX) - 1;
2857 int setindex = priv->tx_key;
2858 int enable = priv->wep_on;
2859 int restricted = priv->wep_restrict;
2860 u16 xlen = 0;
2861 int err = -EINPROGRESS; /* Call commit handler */
2862 unsigned long flags;
2863
2864 if (! priv->has_wep)
2865 return -EOPNOTSUPP;
2866
2867 if (erq->pointer) {
2868 /* We actually have a key to set - check its length */
2869 if (erq->length > LARGE_KEY_SIZE)
2870 return -E2BIG;
2871
2872 if ( (erq->length > SMALL_KEY_SIZE) && !priv->has_big_wep )
2873 return -E2BIG;
2874 }
2875
2876 if (orinoco_lock(priv, &flags) != 0)
2877 return -EBUSY;
2878
2879 if (erq->length > 0) {
2880 if ((index < 0) || (index >= ORINOCO_MAX_KEYS))
2881 index = priv->tx_key;
2882
2883 /* Adjust key length to a supported value */
2884 if (erq->length > SMALL_KEY_SIZE) {
2885 xlen = LARGE_KEY_SIZE;
2886 } else if (erq->length > 0) {
2887 xlen = SMALL_KEY_SIZE;
2888 } else
2889 xlen = 0;
2890
2891 /* Switch on WEP if off */
2892 if ((!enable) && (xlen > 0)) {
2893 setindex = index;
2894 enable = 1;
2895 }
2896 } else {
2897 /* Important note : if the user do "iwconfig eth0 enc off",
2898 * we will arrive there with an index of -1. This is valid
2899 * but need to be taken care off... Jean II */
2900 if ((index < 0) || (index >= ORINOCO_MAX_KEYS)) {
2901 if((index != -1) || (erq->flags == 0)) {
2902 err = -EINVAL;
2903 goto out;
2904 }
2905 } else {
2906 /* Set the index : Check that the key is valid */
2907 if(priv->keys[index].len == 0) {
2908 err = -EINVAL;
2909 goto out;
2910 }
2911 setindex = index;
2912 }
2913 }
2914
2915 if (erq->flags & IW_ENCODE_DISABLED)
2916 enable = 0;
2917 if (erq->flags & IW_ENCODE_OPEN)
2918 restricted = 0;
2919 if (erq->flags & IW_ENCODE_RESTRICTED)
2920 restricted = 1;
2921
2922 if (erq->pointer && erq->length > 0) {
2923 priv->keys[index].len = cpu_to_le16(xlen);
2924 memset(priv->keys[index].data, 0,
2925 sizeof(priv->keys[index].data));
2926 memcpy(priv->keys[index].data, keybuf, erq->length);
2927 }
2928 priv->tx_key = setindex;
2929
2930 /* Try fast key change if connected and only keys are changed */
2931 if (priv->wep_on && enable && (priv->wep_restrict == restricted) &&
2932 netif_carrier_ok(dev)) {
2933 err = __orinoco_hw_setup_wepkeys(priv);
2934 /* No need to commit if successful */
2935 goto out;
2936 }
2937
2938 priv->wep_on = enable;
2939 priv->wep_restrict = restricted;
2940
2941 out:
2942 orinoco_unlock(priv, &flags);
2943
2944 return err;
2945 }
2946
2947 static int orinoco_ioctl_getiwencode(struct net_device *dev,
2948 struct iw_request_info *info,
2949 struct iw_point *erq,
2950 char *keybuf)
2951 {
2952 struct orinoco_private *priv = netdev_priv(dev);
2953 int index = (erq->flags & IW_ENCODE_INDEX) - 1;
2954 u16 xlen = 0;
2955 unsigned long flags;
2956
2957 if (! priv->has_wep)
2958 return -EOPNOTSUPP;
2959
2960 if (orinoco_lock(priv, &flags) != 0)
2961 return -EBUSY;
2962
2963 if ((index < 0) || (index >= ORINOCO_MAX_KEYS))
2964 index = priv->tx_key;
2965
2966 erq->flags = 0;
2967 if (! priv->wep_on)
2968 erq->flags |= IW_ENCODE_DISABLED;
2969 erq->flags |= index + 1;
2970
2971 if (priv->wep_restrict)
2972 erq->flags |= IW_ENCODE_RESTRICTED;
2973 else
2974 erq->flags |= IW_ENCODE_OPEN;
2975
2976 xlen = le16_to_cpu(priv->keys[index].len);
2977
2978 erq->length = xlen;
2979
2980 memcpy(keybuf, priv->keys[index].data, ORINOCO_MAX_KEY_SIZE);
2981
2982 orinoco_unlock(priv, &flags);
2983 return 0;
2984 }
2985
2986 static int orinoco_ioctl_setessid(struct net_device *dev,
2987 struct iw_request_info *info,
2988 struct iw_point *erq,
2989 char *essidbuf)
2990 {
2991 struct orinoco_private *priv = netdev_priv(dev);
2992 unsigned long flags;
2993
2994 /* Note : ESSID is ignored in Ad-Hoc demo mode, but we can set it
2995 * anyway... - Jean II */
2996
2997 /* Hum... Should not use Wireless Extension constant (may change),
2998 * should use our own... - Jean II */
2999 if (erq->length > IW_ESSID_MAX_SIZE)
3000 return -E2BIG;
3001
3002 if (orinoco_lock(priv, &flags) != 0)
3003 return -EBUSY;
3004
3005 /* NULL the string (for NULL termination & ESSID = ANY) - Jean II */
3006 memset(priv->desired_essid, 0, sizeof(priv->desired_essid));
3007
3008 /* If not ANY, get the new ESSID */
3009 if (erq->flags) {
3010 memcpy(priv->desired_essid, essidbuf, erq->length);
3011 }
3012
3013 orinoco_unlock(priv, &flags);
3014
3015 return -EINPROGRESS; /* Call commit handler */
3016 }
3017
3018 static int orinoco_ioctl_getessid(struct net_device *dev,
3019 struct iw_request_info *info,
3020 struct iw_point *erq,
3021 char *essidbuf)
3022 {
3023 struct orinoco_private *priv = netdev_priv(dev);
3024 int active;
3025 int err = 0;
3026 unsigned long flags;
3027
3028 if (netif_running(dev)) {
3029 err = orinoco_hw_get_essid(priv, &active, essidbuf);
3030 if (err)
3031 return err;
3032 } else {
3033 if (orinoco_lock(priv, &flags) != 0)
3034 return -EBUSY;
3035 memcpy(essidbuf, priv->desired_essid, IW_ESSID_MAX_SIZE + 1);
3036 orinoco_unlock(priv, &flags);
3037 }
3038
3039 erq->flags = 1;
3040 erq->length = strlen(essidbuf) + 1;
3041
3042 return 0;
3043 }
3044
3045 static int orinoco_ioctl_setnick(struct net_device *dev,
3046 struct iw_request_info *info,
3047 struct iw_point *nrq,
3048 char *nickbuf)
3049 {
3050 struct orinoco_private *priv = netdev_priv(dev);
3051 unsigned long flags;
3052
3053 if (nrq->length > IW_ESSID_MAX_SIZE)
3054 return -E2BIG;
3055
3056 if (orinoco_lock(priv, &flags) != 0)
3057 return -EBUSY;
3058
3059 memset(priv->nick, 0, sizeof(priv->nick));
3060 memcpy(priv->nick, nickbuf, nrq->length);
3061
3062 orinoco_unlock(priv, &flags);
3063
3064 return -EINPROGRESS; /* Call commit handler */
3065 }
3066
3067 static int orinoco_ioctl_getnick(struct net_device *dev,
3068 struct iw_request_info *info,
3069 struct iw_point *nrq,
3070 char *nickbuf)
3071 {
3072 struct orinoco_private *priv = netdev_priv(dev);
3073 unsigned long flags;
3074
3075 if (orinoco_lock(priv, &flags) != 0)
3076 return -EBUSY;
3077
3078 memcpy(nickbuf, priv->nick, IW_ESSID_MAX_SIZE+1);
3079 orinoco_unlock(priv, &flags);
3080
3081 nrq->length = strlen(nickbuf)+1;
3082
3083 return 0;
3084 }
3085
3086 static int orinoco_ioctl_setfreq(struct net_device *dev,
3087 struct iw_request_info *info,
3088 struct iw_freq *frq,
3089 char *extra)
3090 {
3091 struct orinoco_private *priv = netdev_priv(dev);
3092 int chan = -1;
3093 unsigned long flags;
3094 int err = -EINPROGRESS; /* Call commit handler */
3095
3096 /* In infrastructure mode the AP sets the channel */
3097 if (priv->iw_mode == IW_MODE_INFRA)
3098 return -EBUSY;
3099
3100 if ( (frq->e == 0) && (frq->m <= 1000) ) {
3101 /* Setting by channel number */
3102 chan = frq->m;
3103 } else {
3104 /* Setting by frequency - search the table */
3105 int mult = 1;
3106 int i;
3107
3108 for (i = 0; i < (6 - frq->e); i++)
3109 mult *= 10;
3110
3111 for (i = 0; i < NUM_CHANNELS; i++)
3112 if (frq->m == (channel_frequency[i] * mult))
3113 chan = i+1;
3114 }
3115
3116 if ( (chan < 1) || (chan > NUM_CHANNELS) ||
3117 ! (priv->channel_mask & (1 << (chan-1)) ) )
3118 return -EINVAL;
3119
3120 if (orinoco_lock(priv, &flags) != 0)
3121 return -EBUSY;
3122
3123 priv->channel = chan;
3124 if (priv->iw_mode == IW_MODE_MONITOR) {
3125 /* Fast channel change - no commit if successful */
3126 hermes_t *hw = &priv->hw;
3127 err = hermes_docmd_wait(hw, HERMES_CMD_TEST |
3128 HERMES_TEST_SET_CHANNEL,
3129 chan, NULL);
3130 }
3131 orinoco_unlock(priv, &flags);
3132
3133 return err;
3134 }
3135
3136 static int orinoco_ioctl_getfreq(struct net_device *dev,
3137 struct iw_request_info *info,
3138 struct iw_freq *frq,
3139 char *extra)
3140 {
3141 struct orinoco_private *priv = netdev_priv(dev);
3142 int tmp;
3143
3144 /* Locking done in there */
3145 tmp = orinoco_hw_get_freq(priv);
3146 if (tmp < 0) {
3147 return tmp;
3148 }
3149
3150 frq->m = tmp;
3151 frq->e = 1;
3152
3153 return 0;
3154 }
3155
3156 static int orinoco_ioctl_getsens(struct net_device *dev,
3157 struct iw_request_info *info,
3158 struct iw_param *srq,
3159 char *extra)
3160 {
3161 struct orinoco_private *priv = netdev_priv(dev);
3162 hermes_t *hw = &priv->hw;
3163 u16 val;
3164 int err;
3165 unsigned long flags;
3166
3167 if (!priv->has_sensitivity)
3168 return -EOPNOTSUPP;
3169
3170 if (orinoco_lock(priv, &flags) != 0)
3171 return -EBUSY;
3172 err = hermes_read_wordrec(hw, USER_BAP,
3173 HERMES_RID_CNFSYSTEMSCALE, &val);
3174 orinoco_unlock(priv, &flags);
3175
3176 if (err)
3177 return err;
3178
3179 srq->value = val;
3180 srq->fixed = 0; /* auto */
3181
3182 return 0;
3183 }
3184
3185 static int orinoco_ioctl_setsens(struct net_device *dev,
3186 struct iw_request_info *info,
3187 struct iw_param *srq,
3188 char *extra)
3189 {
3190 struct orinoco_private *priv = netdev_priv(dev);
3191 int val = srq->value;
3192 unsigned long flags;
3193
3194 if (!priv->has_sensitivity)
3195 return -EOPNOTSUPP;
3196
3197 if ((val < 1) || (val > 3))
3198 return -EINVAL;
3199
3200 if (orinoco_lock(priv, &flags) != 0)
3201 return -EBUSY;
3202 priv->ap_density = val;
3203 orinoco_unlock(priv, &flags);
3204
3205 return -EINPROGRESS; /* Call commit handler */
3206 }
3207
3208 static int orinoco_ioctl_setrts(struct net_device *dev,
3209 struct iw_request_info *info,
3210 struct iw_param *rrq,
3211 char *extra)
3212 {
3213 struct orinoco_private *priv = netdev_priv(dev);
3214 int val = rrq->value;
3215 unsigned long flags;
3216
3217 if (rrq->disabled)
3218 val = 2347;
3219
3220 if ( (val < 0) || (val > 2347) )
3221 return -EINVAL;
3222
3223 if (orinoco_lock(priv, &flags) != 0)
3224 return -EBUSY;
3225
3226 priv->rts_thresh = val;
3227 orinoco_unlock(priv, &flags);
3228
3229 return -EINPROGRESS; /* Call commit handler */
3230 }
3231
3232 static int orinoco_ioctl_getrts(struct net_device *dev,
3233 struct iw_request_info *info,
3234 struct iw_param *rrq,
3235 char *extra)
3236 {
3237 struct orinoco_private *priv = netdev_priv(dev);
3238
3239 rrq->value = priv->rts_thresh;
3240 rrq->disabled = (rrq->value == 2347);
3241 rrq->fixed = 1;
3242
3243 return 0;
3244 }
3245
3246 static int orinoco_ioctl_setfrag(struct net_device *dev,
3247 struct iw_request_info *info,
3248 struct iw_param *frq,
3249 char *extra)
3250 {
3251 struct orinoco_private *priv = netdev_priv(dev);
3252 int err = -EINPROGRESS; /* Call commit handler */
3253 unsigned long flags;
3254
3255 if (orinoco_lock(priv, &flags) != 0)
3256 return -EBUSY;
3257
3258 if (priv->has_mwo) {
3259 if (frq->disabled)
3260 priv->mwo_robust = 0;
3261 else {
3262 if (frq->fixed)
3263 printk(KERN_WARNING "%s: Fixed fragmentation is "
3264 "not supported on this firmware. "
3265 "Using MWO robust instead.\n", dev->name);
3266 priv->mwo_robust = 1;
3267 }
3268 } else {
3269 if (frq->disabled)
3270 priv->frag_thresh = 2346;
3271 else {
3272 if ( (frq->value < 256) || (frq->value > 2346) )
3273 err = -EINVAL;
3274 else
3275 priv->frag_thresh = frq->value & ~0x1; /* must be even */
3276 }
3277 }
3278
3279 orinoco_unlock(priv, &flags);
3280
3281 return err;
3282 }
3283
3284 static int orinoco_ioctl_getfrag(struct net_device *dev,
3285 struct iw_request_info *info,
3286 struct iw_param *frq,
3287 char *extra)
3288 {
3289 struct orinoco_private *priv = netdev_priv(dev);
3290 hermes_t *hw = &priv->hw;
3291 int err;
3292 u16 val;
3293 unsigned long flags;
3294
3295 if (orinoco_lock(priv, &flags) != 0)
3296 return -EBUSY;
3297
3298 if (priv->has_mwo) {
3299 err = hermes_read_wordrec(hw, USER_BAP,
3300 HERMES_RID_CNFMWOROBUST_AGERE,
3301 &val);
3302 if (err)
3303 val = 0;
3304
3305 frq->value = val ? 2347 : 0;
3306 frq->disabled = ! val;
3307 frq->fixed = 0;
3308 } else {
3309 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFFRAGMENTATIONTHRESHOLD,
3310 &val);
3311 if (err)
3312 val = 0;
3313
3314 frq->value = val;
3315 frq->disabled = (val >= 2346);
3316 frq->fixed = 1;
3317 }
3318
3319 orinoco_unlock(priv, &flags);
3320
3321 return err;
3322 }
3323
3324 static int orinoco_ioctl_setrate(struct net_device *dev,
3325 struct iw_request_info *info,
3326 struct iw_param *rrq,
3327 char *extra)
3328 {
3329 struct orinoco_private *priv = netdev_priv(dev);
3330 int ratemode = -1;
3331 int bitrate; /* 100s of kilobits */
3332 int i;
3333 unsigned long flags;
3334
3335 /* As the user space doesn't know our highest rate, it uses -1
3336 * to ask us to set the highest rate. Test it using "iwconfig
3337 * ethX rate auto" - Jean II */
3338 if (rrq->value == -1)
3339 bitrate = 110;
3340 else {
3341 if (rrq->value % 100000)
3342 return -EINVAL;
3343 bitrate = rrq->value / 100000;
3344 }
3345
3346 if ( (bitrate != 10) && (bitrate != 20) &&
3347 (bitrate != 55) && (bitrate != 110) )
3348 return -EINVAL;
3349
3350 for (i = 0; i < BITRATE_TABLE_SIZE; i++)
3351 if ( (bitrate_table[i].bitrate == bitrate) &&
3352 (bitrate_table[i].automatic == ! rrq->fixed) ) {
3353 ratemode = i;
3354 break;
3355 }
3356
3357 if (ratemode == -1)
3358 return -EINVAL;
3359
3360 if (orinoco_lock(priv, &flags) != 0)
3361 return -EBUSY;
3362 priv->bitratemode = ratemode;
3363 orinoco_unlock(priv, &flags);
3364
3365 return -EINPROGRESS;
3366 }
3367
3368 static int orinoco_ioctl_getrate(struct net_device *dev,
3369 struct iw_request_info *info,
3370 struct iw_param *rrq,
3371 char *extra)
3372 {
3373 struct orinoco_private *priv = netdev_priv(dev);
3374 hermes_t *hw = &priv->hw;
3375 int err = 0;
3376 int ratemode;
3377 int i;
3378 u16 val;
3379 unsigned long flags;
3380
3381 if (orinoco_lock(priv, &flags) != 0)
3382 return -EBUSY;
3383
3384 ratemode = priv->bitratemode;
3385
3386 BUG_ON((ratemode < 0) || (ratemode >= BITRATE_TABLE_SIZE));
3387
3388 rrq->value = bitrate_table[ratemode].bitrate * 100000;
3389 rrq->fixed = ! bitrate_table[ratemode].automatic;
3390 rrq->disabled = 0;
3391
3392 /* If the interface is running we try to find more about the
3393 current mode */
3394 if (netif_running(dev)) {
3395 err = hermes_read_wordrec(hw, USER_BAP,
3396 HERMES_RID_CURRENTTXRATE, &val);
3397 if (err)
3398 goto out;
3399
3400 switch (priv->firmware_type) {
3401 case FIRMWARE_TYPE_AGERE: /* Lucent style rate */
3402 /* Note : in Lucent firmware, the return value of
3403 * HERMES_RID_CURRENTTXRATE is the bitrate in Mb/s,
3404 * and therefore is totally different from the
3405 * encoding of HERMES_RID_CNFTXRATECONTROL.
3406 * Don't forget that 6Mb/s is really 5.5Mb/s */
3407 if (val == 6)
3408 rrq->value = 5500000;
3409 else
3410 rrq->value = val * 1000000;
3411 break;
3412 case FIRMWARE_TYPE_INTERSIL: /* Intersil style rate */
3413 case FIRMWARE_TYPE_SYMBOL: /* Symbol style rate */
3414 for (i = 0; i < BITRATE_TABLE_SIZE; i++)
3415 if (bitrate_table[i].intersil_txratectrl == val) {
3416 ratemode = i;
3417 break;
3418 }
3419 if (i >= BITRATE_TABLE_SIZE)
3420 printk(KERN_INFO "%s: Unable to determine current bitrate (0x%04hx)\n",
3421 dev->name, val);
3422
3423 rrq->value = bitrate_table[ratemode].bitrate * 100000;
3424 break;
3425 default:
3426 BUG();
3427 }
3428 }
3429
3430 out:
3431 orinoco_unlock(priv, &flags);
3432
3433 return err;
3434 }
3435
3436 static int orinoco_ioctl_setpower(struct net_device *dev,
3437 struct iw_request_info *info,
3438 struct iw_param *prq,
3439 char *extra)
3440 {
3441 struct orinoco_private *priv = netdev_priv(dev);
3442 int err = -EINPROGRESS; /* Call commit handler */
3443 unsigned long flags;
3444
3445 if (orinoco_lock(priv, &flags) != 0)
3446 return -EBUSY;
3447
3448 if (prq->disabled) {
3449 priv->pm_on = 0;
3450 } else {
3451 switch (prq->flags & IW_POWER_MODE) {
3452 case IW_POWER_UNICAST_R:
3453 priv->pm_mcast = 0;
3454 priv->pm_on = 1;
3455 break;
3456 case IW_POWER_ALL_R:
3457 priv->pm_mcast = 1;
3458 priv->pm_on = 1;
3459 break;
3460 case IW_POWER_ON:
3461 /* No flags : but we may have a value - Jean II */
3462 break;
3463 default:
3464 err = -EINVAL;
3465 goto out;
3466 }
3467
3468 if (prq->flags & IW_POWER_TIMEOUT) {
3469 priv->pm_on = 1;
3470 priv->pm_timeout = prq->value / 1000;
3471 }
3472 if (prq->flags & IW_POWER_PERIOD) {
3473 priv->pm_on = 1;
3474 priv->pm_period = prq->value / 1000;
3475 }
3476 /* It's valid to not have a value if we are just toggling
3477 * the flags... Jean II */
3478 if(!priv->pm_on) {
3479 err = -EINVAL;
3480 goto out;
3481 }
3482 }
3483
3484 out:
3485 orinoco_unlock(priv, &flags);
3486
3487 return err;
3488 }
3489
3490 static int orinoco_ioctl_getpower(struct net_device *dev,
3491 struct iw_request_info *info,
3492 struct iw_param *prq,
3493 char *extra)
3494 {
3495 struct orinoco_private *priv = netdev_priv(dev);
3496 hermes_t *hw = &priv->hw;
3497 int err = 0;
3498 u16 enable, period, timeout, mcast;
3499 unsigned long flags;
3500
3501 if (orinoco_lock(priv, &flags) != 0)
3502 return -EBUSY;
3503
3504 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFPMENABLED, &enable);
3505 if (err)
3506 goto out;
3507
3508 err = hermes_read_wordrec(hw, USER_BAP,
3509 HERMES_RID_CNFMAXSLEEPDURATION, &period);
3510 if (err)
3511 goto out;
3512
3513 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFPMHOLDOVERDURATION, &timeout);
3514 if (err)
3515 goto out;
3516
3517 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFMULTICASTRECEIVE, &mcast);
3518 if (err)
3519 goto out;
3520
3521 prq->disabled = !enable;
3522 /* Note : by default, display the period */
3523 if ((prq->flags & IW_POWER_TYPE) == IW_POWER_TIMEOUT) {
3524 prq->flags = IW_POWER_TIMEOUT;
3525 prq->value = timeout * 1000;
3526 } else {
3527 prq->flags = IW_POWER_PERIOD;
3528 prq->value = period * 1000;
3529 }
3530 if (mcast)
3531 prq->flags |= IW_POWER_ALL_R;
3532 else
3533 prq->flags |= IW_POWER_UNICAST_R;
3534
3535 out:
3536 orinoco_unlock(priv, &flags);
3537
3538 return err;
3539 }
3540
3541 static int orinoco_ioctl_getretry(struct net_device *dev,
3542 struct iw_request_info *info,
3543 struct iw_param *rrq,
3544 char *extra)
3545 {
3546 struct orinoco_private *priv = netdev_priv(dev);
3547 hermes_t *hw = &priv->hw;
3548 int err = 0;
3549 u16 short_limit, long_limit, lifetime;
3550 unsigned long flags;
3551
3552 if (orinoco_lock(priv, &flags) != 0)
3553 return -EBUSY;
3554
3555 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_SHORTRETRYLIMIT,
3556 &short_limit);
3557 if (err)
3558 goto out;
3559
3560 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_LONGRETRYLIMIT,
3561 &long_limit);
3562 if (err)
3563 goto out;
3564
3565 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_MAXTRANSMITLIFETIME,
3566 &lifetime);
3567 if (err)
3568 goto out;
3569
3570 rrq->disabled = 0; /* Can't be disabled */
3571
3572 /* Note : by default, display the retry number */
3573 if ((rrq->flags & IW_RETRY_TYPE) == IW_RETRY_LIFETIME) {
3574 rrq->flags = IW_RETRY_LIFETIME;
3575 rrq->value = lifetime * 1000; /* ??? */
3576 } else {
3577 /* By default, display the min number */
3578 if ((rrq->flags & IW_RETRY_MAX)) {
3579 rrq->flags = IW_RETRY_LIMIT | IW_RETRY_MAX;
3580 rrq->value = long_limit;
3581 } else {
3582 rrq->flags = IW_RETRY_LIMIT;
3583 rrq->value = short_limit;
3584 if(short_limit != long_limit)
3585 rrq->flags |= IW_RETRY_MIN;
3586 }
3587 }
3588
3589 out:
3590 orinoco_unlock(priv, &flags);
3591
3592 return err;
3593 }
3594
3595 static int orinoco_ioctl_reset(struct net_device *dev,
3596 struct iw_request_info *info,
3597 void *wrqu,
3598 char *extra)
3599 {
3600 struct orinoco_private *priv = netdev_priv(dev);
3601
3602 if (! capable(CAP_NET_ADMIN))
3603 return -EPERM;
3604
3605 if (info->cmd == (SIOCIWFIRSTPRIV + 0x1)) {
3606 printk(KERN_DEBUG "%s: Forcing reset!\n", dev->name);
3607
3608 /* Firmware reset */
3609 orinoco_reset(dev);
3610 } else {
3611 printk(KERN_DEBUG "%s: Force scheduling reset!\n", dev->name);
3612
3613 schedule_work(&priv->reset_work);
3614 }
3615
3616 return 0;
3617 }
3618
3619 static int orinoco_ioctl_setibssport(struct net_device *dev,
3620 struct iw_request_info *info,
3621 void *wrqu,
3622 char *extra)
3623
3624 {
3625 struct orinoco_private *priv = netdev_priv(dev);
3626 int val = *( (int *) extra );
3627 unsigned long flags;
3628
3629 if (orinoco_lock(priv, &flags) != 0)
3630 return -EBUSY;
3631
3632 priv->ibss_port = val ;
3633
3634 /* Actually update the mode we are using */
3635 set_port_type(priv);
3636
3637 orinoco_unlock(priv, &flags);
3638 return -EINPROGRESS; /* Call commit handler */
3639 }
3640
3641 static int orinoco_ioctl_getibssport(struct net_device *dev,
3642 struct iw_request_info *info,
3643 void *wrqu,
3644 char *extra)
3645 {
3646 struct orinoco_private *priv = netdev_priv(dev);
3647 int *val = (int *) extra;
3648
3649 *val = priv->ibss_port;
3650 return 0;
3651 }
3652
3653 static int orinoco_ioctl_setport3(struct net_device *dev,
3654 struct iw_request_info *info,
3655 void *wrqu,
3656 char *extra)
3657 {
3658 struct orinoco_private *priv = netdev_priv(dev);
3659 int val = *( (int *) extra );
3660 int err = 0;
3661 unsigned long flags;
3662
3663 if (orinoco_lock(priv, &flags) != 0)
3664 return -EBUSY;
3665
3666 switch (val) {
3667 case 0: /* Try to do IEEE ad-hoc mode */
3668 if (! priv->has_ibss) {
3669 err = -EINVAL;
3670 break;
3671 }
3672 priv->prefer_port3 = 0;
3673
3674 break;
3675
3676 case 1: /* Try to do Lucent proprietary ad-hoc mode */
3677 if (! priv->has_port3) {
3678 err = -EINVAL;
3679 break;
3680 }
3681 priv->prefer_port3 = 1;
3682 break;
3683
3684 default:
3685 err = -EINVAL;
3686 }
3687
3688 if (! err) {
3689 /* Actually update the mode we are using */
3690 set_port_type(priv);
3691 err = -EINPROGRESS;
3692 }
3693
3694 orinoco_unlock(priv, &flags);
3695
3696 return err;
3697 }
3698
3699 static int orinoco_ioctl_getport3(struct net_device *dev,
3700 struct iw_request_info *info,
3701 void *wrqu,
3702 char *extra)
3703 {
3704 struct orinoco_private *priv = netdev_priv(dev);
3705 int *val = (int *) extra;
3706
3707 *val = priv->prefer_port3;
3708 return 0;
3709 }
3710
3711 static int orinoco_ioctl_setpreamble(struct net_device *dev,
3712 struct iw_request_info *info,
3713 void *wrqu,
3714 char *extra)
3715 {
3716 struct orinoco_private *priv = netdev_priv(dev);
3717 unsigned long flags;
3718 int val;
3719
3720 if (! priv->has_preamble)
3721 return -EOPNOTSUPP;
3722
3723 /* 802.11b has recently defined some short preamble.
3724 * Basically, the Phy header has been reduced in size.
3725 * This increase performance, especially at high rates
3726 * (the preamble is transmitted at 1Mb/s), unfortunately
3727 * this give compatibility troubles... - Jean II */
3728 val = *( (int *) extra );
3729
3730 if (orinoco_lock(priv, &flags) != 0)
3731 return -EBUSY;
3732
3733 if (val)
3734 priv->preamble = 1;
3735 else
3736 priv->preamble = 0;
3737
3738 orinoco_unlock(priv, &flags);
3739
3740 return -EINPROGRESS; /* Call commit handler */
3741 }
3742
3743 static int orinoco_ioctl_getpreamble(struct net_device *dev,
3744 struct iw_request_info *info,
3745 void *wrqu,
3746 char *extra)
3747 {
3748 struct orinoco_private *priv = netdev_priv(dev);
3749 int *val = (int *) extra;
3750
3751 if (! priv->has_preamble)
3752 return -EOPNOTSUPP;
3753
3754 *val = priv->preamble;
3755 return 0;
3756 }
3757
3758 /* ioctl interface to hermes_read_ltv()
3759 * To use with iwpriv, pass the RID as the token argument, e.g.
3760 * iwpriv get_rid [0xfc00]
3761 * At least Wireless Tools 25 is required to use iwpriv.
3762 * For Wireless Tools 25 and 26 append "dummy" are the end. */
3763 static int orinoco_ioctl_getrid(struct net_device *dev,
3764 struct iw_request_info *info,
3765 struct iw_point *data,
3766 char *extra)
3767 {
3768 struct orinoco_private *priv = netdev_priv(dev);
3769 hermes_t *hw = &priv->hw;
3770 int rid = data->flags;
3771 u16 length;
3772 int err;
3773 unsigned long flags;
3774
3775 /* It's a "get" function, but we don't want users to access the
3776 * WEP key and other raw firmware data */
3777 if (! capable(CAP_NET_ADMIN))
3778 return -EPERM;
3779
3780 if (rid < 0xfc00 || rid > 0xffff)
3781 return -EINVAL;
3782
3783 if (orinoco_lock(priv, &flags) != 0)
3784 return -EBUSY;
3785
3786 err = hermes_read_ltv(hw, USER_BAP, rid, MAX_RID_LEN, &length,
3787 extra);
3788 if (err)
3789 goto out;
3790
3791 data->length = min_t(u16, HERMES_RECLEN_TO_BYTES(length),
3792 MAX_RID_LEN);
3793
3794 out:
3795 orinoco_unlock(priv, &flags);
3796 return err;
3797 }
3798
3799 /* Trigger a scan (look for other cells in the vicinity */
3800 static int orinoco_ioctl_setscan(struct net_device *dev,
3801 struct iw_request_info *info,
3802 struct iw_param *srq,
3803 char *extra)
3804 {
3805 struct orinoco_private *priv = netdev_priv(dev);
3806 hermes_t *hw = &priv->hw;
3807 int err = 0;
3808 unsigned long flags;
3809
3810 /* Note : you may have realised that, as this is a SET operation,
3811 * this is privileged and therefore a normal user can't
3812 * perform scanning.
3813 * This is not an error, while the device perform scanning,
3814 * traffic doesn't flow, so it's a perfect DoS...
3815 * Jean II */
3816
3817 if (orinoco_lock(priv, &flags) != 0)
3818 return -EBUSY;
3819
3820 /* Scanning with port 0 disabled would fail */
3821 if (!netif_running(dev)) {
3822 err = -ENETDOWN;
3823 goto out;
3824 }
3825
3826 /* In monitor mode, the scan results are always empty.
3827 * Probe responses are passed to the driver as received
3828 * frames and could be processed in software. */
3829 if (priv->iw_mode == IW_MODE_MONITOR) {
3830 err = -EOPNOTSUPP;
3831 goto out;
3832 }
3833
3834 /* Note : because we don't lock out the irq handler, the way
3835 * we access scan variables in priv is critical.
3836 * o scan_inprogress : not touched by irq handler
3837 * o scan_mode : not touched by irq handler
3838 * o scan_result : irq is strict producer, non-irq is strict
3839 * consumer.
3840 * o scan_len : synchronised with scan_result
3841 * Before modifying anything on those variables, please think hard !
3842 * Jean II */
3843
3844 /* If there is still some left-over scan results, get rid of it */
3845 if (priv->scan_result != NULL) {
3846 /* What's likely is that a client did crash or was killed
3847 * between triggering the scan request and reading the
3848 * results, so we need to reset everything.
3849 * Some clients that are too slow may suffer from that...
3850 * Jean II */
3851 kfree(priv->scan_result);
3852 priv->scan_result = NULL;
3853 }
3854
3855 /* Save flags */
3856 priv->scan_mode = srq->flags;
3857
3858 /* Always trigger scanning, even if it's in progress.
3859 * This way, if the info frame get lost, we will recover somewhat
3860 * gracefully - Jean II */
3861
3862 if (priv->has_hostscan) {
3863 switch (priv->firmware_type) {
3864 case FIRMWARE_TYPE_SYMBOL:
3865 err = hermes_write_wordrec(hw, USER_BAP,
3866 HERMES_RID_CNFHOSTSCAN_SYMBOL,
3867 HERMES_HOSTSCAN_SYMBOL_ONCE |
3868 HERMES_HOSTSCAN_SYMBOL_BCAST);
3869 break;
3870 case FIRMWARE_TYPE_INTERSIL: {
3871 __le16 req[3];
3872
3873 req[0] = cpu_to_le16(0x3fff); /* All channels */
3874 req[1] = cpu_to_le16(0x0001); /* rate 1 Mbps */
3875 req[2] = 0; /* Any ESSID */
3876 err = HERMES_WRITE_RECORD(hw, USER_BAP,
3877 HERMES_RID_CNFHOSTSCAN, &req);
3878 }
3879 break;
3880 case FIRMWARE_TYPE_AGERE:
3881 err = hermes_write_wordrec(hw, USER_BAP,
3882 HERMES_RID_CNFSCANSSID_AGERE,
3883 0); /* Any ESSID */
3884 if (err)
3885 break;
3886
3887 err = hermes_inquire(hw, HERMES_INQ_SCAN);
3888 break;
3889 }
3890 } else
3891 err = hermes_inquire(hw, HERMES_INQ_SCAN);
3892
3893 /* One more client */
3894 if (! err)
3895 priv->scan_inprogress = 1;
3896
3897 out:
3898 orinoco_unlock(priv, &flags);
3899 return err;
3900 }
3901
3902 /* Translate scan data returned from the card to a card independant
3903 * format that the Wireless Tools will understand - Jean II
3904 * Return message length or -errno for fatal errors */
3905 static inline int orinoco_translate_scan(struct net_device *dev,
3906 char *buffer,
3907 char *scan,
3908 int scan_len)
3909 {
3910 struct orinoco_private *priv = netdev_priv(dev);
3911 int offset; /* In the scan data */
3912 union hermes_scan_info *atom;
3913 int atom_len;
3914 u16 capabilities;
3915 u16 channel;
3916 struct iw_event iwe; /* Temporary buffer */
3917 char * current_ev = buffer;
3918 char * end_buf = buffer + IW_SCAN_MAX_DATA;
3919
3920 switch (priv->firmware_type) {
3921 case FIRMWARE_TYPE_AGERE:
3922 atom_len = sizeof(struct agere_scan_apinfo);
3923 offset = 0;
3924 break;
3925 case FIRMWARE_TYPE_SYMBOL:
3926 /* Lack of documentation necessitates this hack.
3927 * Different firmwares have 68 or 76 byte long atoms.
3928 * We try modulo first. If the length divides by both,
3929 * we check what would be the channel in the second
3930 * frame for a 68-byte atom. 76-byte atoms have 0 there.
3931 * Valid channel cannot be 0. */
3932 if (scan_len % 76)
3933 atom_len = 68;
3934 else if (scan_len % 68)
3935 atom_len = 76;
3936 else if (scan_len >= 1292 && scan[68] == 0)
3937 atom_len = 76;
3938 else
3939 atom_len = 68;
3940 offset = 0;
3941 break;
3942 case FIRMWARE_TYPE_INTERSIL:
3943 offset = 4;
3944 if (priv->has_hostscan) {
3945 atom_len = le16_to_cpup((__le16 *)scan);
3946 /* Sanity check for atom_len */
3947 if (atom_len < sizeof(struct prism2_scan_apinfo)) {
3948 printk(KERN_ERR "%s: Invalid atom_len in scan data: %d\n",
3949 dev->name, atom_len);
3950 return -EIO;
3951 }
3952 } else
3953 atom_len = offsetof(struct prism2_scan_apinfo, atim);
3954 break;
3955 default:
3956 return -EOPNOTSUPP;
3957 }
3958
3959 /* Check that we got an whole number of atoms */
3960 if ((scan_len - offset) % atom_len) {
3961 printk(KERN_ERR "%s: Unexpected scan data length %d, "
3962 "atom_len %d, offset %d\n", dev->name, scan_len,
3963 atom_len, offset);
3964 return -EIO;
3965 }
3966
3967 /* Read the entries one by one */
3968 for (; offset + atom_len <= scan_len; offset += atom_len) {
3969 /* Get next atom */
3970 atom = (union hermes_scan_info *) (scan + offset);
3971
3972 /* First entry *MUST* be the AP MAC address */
3973 iwe.cmd = SIOCGIWAP;
3974 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
3975 memcpy(iwe.u.ap_addr.sa_data, atom->a.bssid, ETH_ALEN);
3976 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_ADDR_LEN);
3977
3978 /* Other entries will be displayed in the order we give them */
3979
3980 /* Add the ESSID */
3981 iwe.u.data.length = le16_to_cpu(atom->a.essid_len);
3982 if (iwe.u.data.length > 32)
3983 iwe.u.data.length = 32;
3984 iwe.cmd = SIOCGIWESSID;
3985 iwe.u.data.flags = 1;
3986 current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe, atom->a.essid);
3987
3988 /* Add mode */
3989 iwe.cmd = SIOCGIWMODE;
3990 capabilities = le16_to_cpu(atom->a.capabilities);
3991 if (capabilities & 0x3) {
3992 if (capabilities & 0x1)
3993 iwe.u.mode = IW_MODE_MASTER;
3994 else
3995 iwe.u.mode = IW_MODE_ADHOC;
3996 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_UINT_LEN);
3997 }
3998
3999 channel = atom->s.channel;
4000 if ( (channel >= 1) && (channel <= NUM_CHANNELS) ) {
4001 /* Add frequency */
4002 iwe.cmd = SIOCGIWFREQ;
4003 iwe.u.freq.m = channel_frequency[channel-1] * 100000;
4004 iwe.u.freq.e = 1;
4005 current_ev = iwe_stream_add_event(current_ev, end_buf,
4006 &iwe, IW_EV_FREQ_LEN);
4007 }
4008
4009 /* Add quality statistics */
4010 iwe.cmd = IWEVQUAL;
4011 iwe.u.qual.updated = 0x10; /* no link quality */
4012 iwe.u.qual.level = (__u8) le16_to_cpu(atom->a.level) - 0x95;
4013 iwe.u.qual.noise = (__u8) le16_to_cpu(atom->a.noise) - 0x95;
4014 /* Wireless tools prior to 27.pre22 will show link quality
4015 * anyway, so we provide a reasonable value. */
4016 if (iwe.u.qual.level > iwe.u.qual.noise)
4017 iwe.u.qual.qual = iwe.u.qual.level - iwe.u.qual.noise;
4018 else
4019 iwe.u.qual.qual = 0;
4020 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_QUAL_LEN);
4021
4022 /* Add encryption capability */
4023 iwe.cmd = SIOCGIWENCODE;
4024 if (capabilities & 0x10)
4025 iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
4026 else
4027 iwe.u.data.flags = IW_ENCODE_DISABLED;
4028 iwe.u.data.length = 0;
4029 current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe, atom->a.essid);
4030
4031 /* Bit rate is not available in Lucent/Agere firmwares */
4032 if (priv->firmware_type != FIRMWARE_TYPE_AGERE) {
4033 char * current_val = current_ev + IW_EV_LCP_LEN;
4034 int i;
4035 int step;
4036
4037 if (priv->firmware_type == FIRMWARE_TYPE_SYMBOL)
4038 step = 2;
4039 else
4040 step = 1;
4041
4042 iwe.cmd = SIOCGIWRATE;
4043 /* Those two flags are ignored... */
4044 iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
4045 /* Max 10 values */
4046 for (i = 0; i < 10; i += step) {
4047 /* NULL terminated */
4048 if (atom->p.rates[i] == 0x0)
4049 break;
4050 /* Bit rate given in 500 kb/s units (+ 0x80) */
4051 iwe.u.bitrate.value = ((atom->p.rates[i] & 0x7f) * 500000);
4052 current_val = iwe_stream_add_value(current_ev, current_val,
4053 end_buf, &iwe,
4054 IW_EV_PARAM_LEN);
4055 }
4056 /* Check if we added any event */
4057 if ((current_val - current_ev) > IW_EV_LCP_LEN)
4058 current_ev = current_val;
4059 }
4060
4061 /* The other data in the scan result are not really
4062 * interesting, so for now drop it - Jean II */
4063 }
4064 return current_ev - buffer;
4065 }
4066
4067 /* Return results of a scan */
4068 static int orinoco_ioctl_getscan(struct net_device *dev,
4069 struct iw_request_info *info,
4070 struct iw_point *srq,
4071 char *extra)
4072 {
4073 struct orinoco_private *priv = netdev_priv(dev);
4074 int err = 0;
4075 unsigned long flags;
4076
4077 if (orinoco_lock(priv, &flags) != 0)
4078 return -EBUSY;
4079
4080 /* If no results yet, ask to try again later */
4081 if (priv->scan_result == NULL) {
4082 if (priv->scan_inprogress)
4083 /* Important note : we don't want to block the caller
4084 * until results are ready for various reasons.
4085 * First, managing wait queues is complex and racy.
4086 * Second, we grab some rtnetlink lock before comming
4087 * here (in dev_ioctl()).
4088 * Third, we generate an Wireless Event, so the
4089 * caller can wait itself on that - Jean II */
4090 err = -EAGAIN;
4091 else
4092 /* Client error, no scan results...
4093 * The caller need to restart the scan. */
4094 err = -ENODATA;
4095 } else {
4096 /* We have some results to push back to user space */
4097
4098 /* Translate to WE format */
4099 int ret = orinoco_translate_scan(dev, extra,
4100 priv->scan_result,
4101 priv->scan_len);
4102
4103 if (ret < 0) {
4104 err = ret;
4105 kfree(priv->scan_result);
4106 priv->scan_result = NULL;
4107 } else {
4108 srq->length = ret;
4109
4110 /* Return flags */
4111 srq->flags = (__u16) priv->scan_mode;
4112
4113 /* In any case, Scan results will be cleaned up in the
4114 * reset function and when exiting the driver.
4115 * The person triggering the scanning may never come to
4116 * pick the results, so we need to do it in those places.
4117 * Jean II */
4118
4119 #ifdef SCAN_SINGLE_READ
4120 /* If you enable this option, only one client (the first
4121 * one) will be able to read the result (and only one
4122 * time). If there is multiple concurent clients that
4123 * want to read scan results, this behavior is not
4124 * advisable - Jean II */
4125 kfree(priv->scan_result);
4126 priv->scan_result = NULL;
4127 #endif /* SCAN_SINGLE_READ */
4128 /* Here, if too much time has elapsed since last scan,
4129 * we may want to clean up scan results... - Jean II */
4130 }
4131
4132 /* Scan is no longer in progress */
4133 priv->scan_inprogress = 0;
4134 }
4135
4136 orinoco_unlock(priv, &flags);
4137 return err;
4138 }
4139
4140 /* Commit handler, called after set operations */
4141 static int orinoco_ioctl_commit(struct net_device *dev,
4142 struct iw_request_info *info,
4143 void *wrqu,
4144 char *extra)
4145 {
4146 struct orinoco_private *priv = netdev_priv(dev);
4147 struct hermes *hw = &priv->hw;
4148 unsigned long flags;
4149 int err = 0;
4150
4151 if (!priv->open)
4152 return 0;
4153
4154 if (priv->broken_disableport) {
4155 orinoco_reset(dev);
4156 return 0;
4157 }
4158
4159 if (orinoco_lock(priv, &flags) != 0)
4160 return err;
4161
4162 err = hermes_disable_port(hw, 0);
4163 if (err) {
4164 printk(KERN_WARNING "%s: Unable to disable port "
4165 "while reconfiguring card\n", dev->name);
4166 priv->broken_disableport = 1;
4167 goto out;
4168 }
4169
4170 err = __orinoco_program_rids(dev);
4171 if (err) {
4172 printk(KERN_WARNING "%s: Unable to reconfigure card\n",
4173 dev->name);
4174 goto out;
4175 }
4176
4177 err = hermes_enable_port(hw, 0);
4178 if (err) {
4179 printk(KERN_WARNING "%s: Unable to enable port while reconfiguring card\n",
4180 dev->name);
4181 goto out;
4182 }
4183
4184 out:
4185 if (err) {
4186 printk(KERN_WARNING "%s: Resetting instead...\n", dev->name);
4187 schedule_work(&priv->reset_work);
4188 err = 0;
4189 }
4190
4191 orinoco_unlock(priv, &flags);
4192 return err;
4193 }
4194
4195 static const struct iw_priv_args orinoco_privtab[] = {
4196 { SIOCIWFIRSTPRIV + 0x0, 0, 0, "force_reset" },
4197 { SIOCIWFIRSTPRIV + 0x1, 0, 0, "card_reset" },
4198 { SIOCIWFIRSTPRIV + 0x2, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
4199 0, "set_port3" },
4200 { SIOCIWFIRSTPRIV + 0x3, 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
4201 "get_port3" },
4202 { SIOCIWFIRSTPRIV + 0x4, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
4203 0, "set_preamble" },
4204 { SIOCIWFIRSTPRIV + 0x5, 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
4205 "get_preamble" },
4206 { SIOCIWFIRSTPRIV + 0x6, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
4207 0, "set_ibssport" },
4208 { SIOCIWFIRSTPRIV + 0x7, 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
4209 "get_ibssport" },
4210 { SIOCIWFIRSTPRIV + 0x9, 0, IW_PRIV_TYPE_BYTE | MAX_RID_LEN,
4211 "get_rid" },
4212 };
4213
4214
4215 /*
4216 * Structures to export the Wireless Handlers
4217 */
4218
4219 static const iw_handler orinoco_handler[] = {
4220 [SIOCSIWCOMMIT-SIOCIWFIRST] = (iw_handler) orinoco_ioctl_commit,
4221 [SIOCGIWNAME -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getname,
4222 [SIOCSIWFREQ -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setfreq,
4223 [SIOCGIWFREQ -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getfreq,
4224 [SIOCSIWMODE -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setmode,
4225 [SIOCGIWMODE -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getmode,
4226 [SIOCSIWSENS -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setsens,
4227 [SIOCGIWSENS -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getsens,
4228 [SIOCGIWRANGE -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getiwrange,
4229 [SIOCSIWSPY -SIOCIWFIRST] = (iw_handler) iw_handler_set_spy,
4230 [SIOCGIWSPY -SIOCIWFIRST] = (iw_handler) iw_handler_get_spy,
4231 [SIOCSIWTHRSPY-SIOCIWFIRST] = (iw_handler) iw_handler_set_thrspy,
4232 [SIOCGIWTHRSPY-SIOCIWFIRST] = (iw_handler) iw_handler_get_thrspy,
4233 [SIOCSIWAP -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setwap,
4234 [SIOCGIWAP -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getwap,
4235 [SIOCSIWSCAN -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setscan,
4236 [SIOCGIWSCAN -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getscan,
4237 [SIOCSIWESSID -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setessid,
4238 [SIOCGIWESSID -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getessid,
4239 [SIOCSIWNICKN -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setnick,
4240 [SIOCGIWNICKN -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getnick,
4241 [SIOCSIWRATE -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setrate,
4242 [SIOCGIWRATE -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getrate,
4243 [SIOCSIWRTS -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setrts,
4244 [SIOCGIWRTS -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getrts,
4245 [SIOCSIWFRAG -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setfrag,
4246 [SIOCGIWFRAG -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getfrag,
4247 [SIOCGIWRETRY -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getretry,
4248 [SIOCSIWENCODE-SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setiwencode,
4249 [SIOCGIWENCODE-SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getiwencode,
4250 [SIOCSIWPOWER -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setpower,
4251 [SIOCGIWPOWER -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getpower,
4252 };
4253
4254
4255 /*
4256 Added typecasting since we no longer use iwreq_data -- Moustafa
4257 */
4258 static const iw_handler orinoco_private_handler[] = {
4259 [0] = (iw_handler) orinoco_ioctl_reset,
4260 [1] = (iw_handler) orinoco_ioctl_reset,
4261 [2] = (iw_handler) orinoco_ioctl_setport3,
4262 [3] = (iw_handler) orinoco_ioctl_getport3,
4263 [4] = (iw_handler) orinoco_ioctl_setpreamble,
4264 [5] = (iw_handler) orinoco_ioctl_getpreamble,
4265 [6] = (iw_handler) orinoco_ioctl_setibssport,
4266 [7] = (iw_handler) orinoco_ioctl_getibssport,
4267 [9] = (iw_handler) orinoco_ioctl_getrid,
4268 };
4269
4270 static const struct iw_handler_def orinoco_handler_def = {
4271 .num_standard = ARRAY_SIZE(orinoco_handler),
4272 .num_private = ARRAY_SIZE(orinoco_private_handler),
4273 .num_private_args = ARRAY_SIZE(orinoco_privtab),
4274 .standard = orinoco_handler,
4275 .private = orinoco_private_handler,
4276 .private_args = orinoco_privtab,
4277 .get_wireless_stats = orinoco_get_wireless_stats,
4278 };
4279
4280 static void orinoco_get_drvinfo(struct net_device *dev,
4281 struct ethtool_drvinfo *info)
4282 {
4283 struct orinoco_private *priv = netdev_priv(dev);
4284
4285 strncpy(info->driver, DRIVER_NAME, sizeof(info->driver) - 1);
4286 strncpy(info->version, DRIVER_VERSION, sizeof(info->version) - 1);
4287 strncpy(info->fw_version, priv->fw_name, sizeof(info->fw_version) - 1);
4288 if (dev->class_dev.dev)
4289 strncpy(info->bus_info, dev->class_dev.dev->bus_id,
4290 sizeof(info->bus_info) - 1);
4291 else
4292 snprintf(info->bus_info, sizeof(info->bus_info) - 1,
4293 "PCMCIA %p", priv->hw.iobase);
4294 }
4295
4296 static const struct ethtool_ops orinoco_ethtool_ops = {
4297 .get_drvinfo = orinoco_get_drvinfo,
4298 .get_link = ethtool_op_get_link,
4299 };
4300
4301 /********************************************************************/
4302 /* Module initialization */
4303 /********************************************************************/
4304
4305 EXPORT_SYMBOL(alloc_orinocodev);
4306 EXPORT_SYMBOL(free_orinocodev);
4307
4308 EXPORT_SYMBOL(__orinoco_up);
4309 EXPORT_SYMBOL(__orinoco_down);
4310 EXPORT_SYMBOL(orinoco_reinit_firmware);
4311
4312 EXPORT_SYMBOL(orinoco_interrupt);
4313
4314 /* Can't be declared "const" or the whole __initdata section will
4315 * become const */
4316 static char version[] __initdata = DRIVER_NAME " " DRIVER_VERSION
4317 " (David Gibson <hermes@gibson.dropbear.id.au>, "
4318 "Pavel Roskin <proski@gnu.org>, et al)";
4319
4320 static int __init init_orinoco(void)
4321 {
4322 printk(KERN_DEBUG "%s\n", version);
4323 return 0;
4324 }
4325
4326 static void __exit exit_orinoco(void)
4327 {
4328 }
4329
4330 module_init(init_orinoco);
4331 module_exit(exit_orinoco);
linux-next