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