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RT-AC66 3.0.0.4.374.130 core
[tomato.git] / release / src-rt-6.x / linux / linux-2.6 / drivers / net / wireless / orinoco.c
blob062286dc8e152370da4d2f1ed6f9cff8e8646132
1 /* orinoco.c - (formerly known as dldwd_cs.c and orinoco_cs.c)
2 *
3 * A driver for Hermes or Prism 2 chipset based PCMCIA wireless
4 * adaptors, with Lucent/Agere, Intersil or Symbol firmware.
5 *
6 * Current maintainers (as of 29 September 2003) are:
7 * Pavel Roskin <proski AT gnu.org>
8 * and David Gibson <hermes AT gibson.dropbear.id.au>
9 *
10 * (C) Copyright David Gibson, IBM Corporation 2001-2003.
11 * Copyright (C) 2000 David Gibson, Linuxcare Australia.
12 * With some help from :
13 * Copyright (C) 2001 Jean Tourrilhes, HP Labs
14 * Copyright (C) 2001 Benjamin Herrenschmidt
15 *
16 * Based on dummy_cs.c 1.27 2000/06/12 21:27:25
17 *
18 * Portions based on wvlan_cs.c 1.0.6, Copyright Andreas Neuhaus <andy
19 * AT fasta.fh-dortmund.de>
20 * http://www.stud.fh-dortmund.de/~andy/wvlan/
21 *
22 * The contents of this file are subject to the Mozilla Public License
23 * Version 1.1 (the "License"); you may not use this file except in
24 * compliance with the License. You may obtain a copy of the License
25 * at http://www.mozilla.org/MPL/
26 *
27 * Software distributed under the License is distributed on an "AS IS"
28 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
29 * the License for the specific language governing rights and
30 * limitations under the License.
31 *
32 * The initial developer of the original code is David A. Hinds
33 * <dahinds AT users.sourceforge.net>. Portions created by David
34 * A. Hinds are Copyright (C) 1999 David A. Hinds. All Rights
35 * Reserved.
36 *
37 * Alternatively, the contents of this file may be used under the
38 * terms of the GNU General Public License version 2 (the "GPL"), in
39 * which case the provisions of the GPL are applicable instead of the
40 * above. If you wish to allow the use of your version of this file
41 * only under the terms of the GPL and not to allow others to use your
42 * version of this file under the MPL, indicate your decision by
43 * deleting the provisions above and replace them with the notice and
44 * other provisions required by the GPL. If you do not delete the
45 * provisions above, a recipient may use your version of this file
46 * under either the MPL or the GPL. */
47
48 /*
49 * TODO
50 * o Handle de-encapsulation within network layer, provide 802.11
51 * headers (patch from Thomas 'Dent' Mirlacher)
52 * o Fix possible races in SPY handling.
53 * o Disconnect wireless extensions from fundamental configuration.
54 * o (maybe) Software WEP support (patch from Stano Meduna).
55 * o (maybe) Use multiple Tx buffers - driver handling queue
56 * rather than firmware.
57 */
58
59 /* Locking and synchronization:
60 *
61 * The basic principle is that everything is serialized through a
62 * single spinlock, priv->lock. The lock is used in user, bh and irq
63 * context, so when taken outside hardirq context it should always be
64 * taken with interrupts disabled. The lock protects both the
65 * hardware and the struct orinoco_private.
66 *
67 * Another flag, priv->hw_unavailable indicates that the hardware is
68 * unavailable for an extended period of time (e.g. suspended, or in
69 * the middle of a hard reset). This flag is protected by the
70 * spinlock. All code which touches the hardware should check the
71 * flag after taking the lock, and if it is set, give up on whatever
72 * they are doing and drop the lock again. The orinoco_lock()
73 * function handles this (it unlocks and returns -EBUSY if
74 * hw_unavailable is non-zero).
75 */
76
77 #define DRIVER_NAME "orinoco"
78
79 #include <linux/module.h>
80 #include <linux/kernel.h>
81 #include <linux/init.h>
82 #include <linux/netdevice.h>
83 #include <linux/etherdevice.h>
84 #include <linux/ethtool.h>
85 #include <linux/if_arp.h>
86 #include <linux/wireless.h>
87 #include <net/iw_handler.h>
88 #include <net/ieee80211.h>
89
90 #include "hermes_rid.h"
91 #include "orinoco.h"
92
93 /********************************************************************/
94 /* Module information */
95 /********************************************************************/
96
97 MODULE_AUTHOR("Pavel Roskin <proski@gnu.org> & David Gibson <hermes@gibson.dropbear.id.au>");
98 MODULE_DESCRIPTION("Driver for Lucent Orinoco, Prism II based and similar wireless cards");
99 MODULE_LICENSE("Dual MPL/GPL");
100
101 /* Level of debugging. Used in the macros in orinoco.h */
102 #ifdef ORINOCO_DEBUG
103 int orinoco_debug = ORINOCO_DEBUG;
104 module_param(orinoco_debug, int, 0644);
105 MODULE_PARM_DESC(orinoco_debug, "Debug level");
106 EXPORT_SYMBOL(orinoco_debug);
107 #endif
108
109 static int suppress_linkstatus; /* = 0 */
110 module_param(suppress_linkstatus, bool, 0644);
111 MODULE_PARM_DESC(suppress_linkstatus, "Don't log link status changes");
112 static int ignore_disconnect; /* = 0 */
113 module_param(ignore_disconnect, int, 0644);
114 MODULE_PARM_DESC(ignore_disconnect, "Don't report lost link to the network layer");
115
116 static int force_monitor; /* = 0 */
117 module_param(force_monitor, int, 0644);
118 MODULE_PARM_DESC(force_monitor, "Allow monitor mode for all firmware versions");
119
120 /********************************************************************/
121 /* Compile time configuration and compatibility stuff */
122 /********************************************************************/
123
124 /* We do this this way to avoid ifdefs in the actual code */
125 #ifdef WIRELESS_SPY
126 #define SPY_NUMBER(priv) (priv->spy_data.spy_number)
127 #else
128 #define SPY_NUMBER(priv) 0
129 #endif /* WIRELESS_SPY */
130
131 /********************************************************************/
132 /* Internal constants */
133 /********************************************************************/
134
135 /* 802.2 LLC/SNAP header used for Ethernet encapsulation over 802.11 */
136 static const u8 encaps_hdr[] = {0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00};
137 #define ENCAPS_OVERHEAD (sizeof(encaps_hdr) + 2)
138
139 #define ORINOCO_MIN_MTU 256
140 #define ORINOCO_MAX_MTU (IEEE80211_DATA_LEN - ENCAPS_OVERHEAD)
141
142 #define SYMBOL_MAX_VER_LEN (14)
143 #define USER_BAP 0
144 #define IRQ_BAP 1
145 #define MAX_IRQLOOPS_PER_IRQ 10
146 #define MAX_IRQLOOPS_PER_JIFFY (20000/HZ) /* Based on a guestimate of
147 * how many events the
148 * device could
149 * legitimately generate */
150 #define SMALL_KEY_SIZE 5
151 #define LARGE_KEY_SIZE 13
152 #define TX_NICBUF_SIZE_BUG 1585 /* Bug in Symbol firmware */
153
154 #define DUMMY_FID 0xFFFF
155
156 /*#define MAX_MULTICAST(priv) (priv->firmware_type == FIRMWARE_TYPE_AGERE ? \
157 HERMES_MAX_MULTICAST : 0)*/
158 #define MAX_MULTICAST(priv) (HERMES_MAX_MULTICAST)
159
160 #define ORINOCO_INTEN (HERMES_EV_RX | HERMES_EV_ALLOC \
161 | HERMES_EV_TX | HERMES_EV_TXEXC \
162 | HERMES_EV_WTERR | HERMES_EV_INFO \
163 | HERMES_EV_INFDROP )
164
165 #define MAX_RID_LEN 1024
166
167 static const struct iw_handler_def orinoco_handler_def;
168 static const struct ethtool_ops orinoco_ethtool_ops;
169
170 /********************************************************************/
171 /* Data tables */
172 /********************************************************************/
173
174 /* The frequency of each channel in MHz */
175 static const long channel_frequency[] = {
176 2412, 2417, 2422, 2427, 2432, 2437, 2442,
177 2447, 2452, 2457, 2462, 2467, 2472, 2484
178 };
179 #define NUM_CHANNELS ARRAY_SIZE(channel_frequency)
180
181 /* This tables gives the actual meanings of the bitrate IDs returned
182 * by the firmware. */
183 static struct {
184 int bitrate; /* in 100s of kilobits */
185 int automatic;
186 u16 agere_txratectrl;
187 u16 intersil_txratectrl;
188 } bitrate_table[] = {
189 {110, 1, 3, 15}, /* Entry 0 is the default */
190 {10, 0, 1, 1},
191 {10, 1, 1, 1},
192 {20, 0, 2, 2},
193 {20, 1, 6, 3},
194 {55, 0, 4, 4},
195 {55, 1, 7, 7},
196 {110, 0, 5, 8},
197 };
198 #define BITRATE_TABLE_SIZE ARRAY_SIZE(bitrate_table)
199
200 /********************************************************************/
201 /* Data types */
202 /********************************************************************/
203
204 /* Beginning of the Tx descriptor, used in TxExc handling */
205 struct hermes_txexc_data {
206 struct hermes_tx_descriptor desc;
207 __le16 frame_ctl;
208 __le16 duration_id;
209 u8 addr1[ETH_ALEN];
210 } __attribute__ ((packed));
211
212 /* Rx frame header except compatibility 802.3 header */
213 struct hermes_rx_descriptor {
214 /* Control */
215 __le16 status;
216 __le32 time;
217 u8 silence;
218 u8 signal;
219 u8 rate;
220 u8 rxflow;
221 __le32 reserved;
222
223 /* 802.11 header */
224 __le16 frame_ctl;
225 __le16 duration_id;
226 u8 addr1[ETH_ALEN];
227 u8 addr2[ETH_ALEN];
228 u8 addr3[ETH_ALEN];
229 __le16 seq_ctl;
230 u8 addr4[ETH_ALEN];
231
232 /* Data length */
233 __le16 data_len;
234 } __attribute__ ((packed));
235
236 /********************************************************************/
237 /* Function prototypes */
238 /********************************************************************/
239
240 static int __orinoco_program_rids(struct net_device *dev);
241 static void __orinoco_set_multicast_list(struct net_device *dev);
242
243 /********************************************************************/
244 /* Internal helper functions */
245 /********************************************************************/
246
247 static inline void set_port_type(struct orinoco_private *priv)
248 {
249 switch (priv->iw_mode) {
250 case IW_MODE_INFRA:
251 priv->port_type = 1;
252 priv->createibss = 0;
253 break;
254 case IW_MODE_ADHOC:
255 if (priv->prefer_port3) {
256 priv->port_type = 3;
257 priv->createibss = 0;
258 } else {
259 priv->port_type = priv->ibss_port;
260 priv->createibss = 1;
261 }
262 break;
263 case IW_MODE_MONITOR:
264 priv->port_type = 3;
265 priv->createibss = 0;
266 break;
267 default:
268 printk(KERN_ERR "%s: Invalid priv->iw_mode in set_port_type()\n",
269 priv->ndev->name);
270 }
271 }
272
273 /********************************************************************/
274 /* Device methods */
275 /********************************************************************/
276
277 static int orinoco_open(struct net_device *dev)
278 {
279 struct orinoco_private *priv = netdev_priv(dev);
280 unsigned long flags;
281 int err;
282
283 if (orinoco_lock(priv, &flags) != 0)
284 return -EBUSY;
285
286 err = __orinoco_up(dev);
287
288 if (! err)
289 priv->open = 1;
290
291 orinoco_unlock(priv, &flags);
292
293 return err;
294 }
295
296 static int orinoco_stop(struct net_device *dev)
297 {
298 struct orinoco_private *priv = netdev_priv(dev);
299 int err = 0;
300
301 /* We mustn't use orinoco_lock() here, because we need to be
302 able to close the interface even if hw_unavailable is set
303 (e.g. as we're released after a PC Card removal) */
304 spin_lock_irq(&priv->lock);
305
306 priv->open = 0;
307
308 err = __orinoco_down(dev);
309
310 spin_unlock_irq(&priv->lock);
311
312 return err;
313 }
314
315 static struct net_device_stats *orinoco_get_stats(struct net_device *dev)
316 {
317 struct orinoco_private *priv = netdev_priv(dev);
318
319 return &priv->stats;
320 }
321
322 static struct iw_statistics *orinoco_get_wireless_stats(struct net_device *dev)
323 {
324 struct orinoco_private *priv = netdev_priv(dev);
325 hermes_t *hw = &priv->hw;
326 struct iw_statistics *wstats = &priv->wstats;
327 int err;
328 unsigned long flags;
329
330 if (! netif_device_present(dev)) {
331 printk(KERN_WARNING "%s: get_wireless_stats() called while device not present\n",
332 dev->name);
333 return NULL; /* FIXME: Can we do better than this? */
334 }
335
336 /* If busy, return the old stats. Returning NULL may cause
337 * the interface to disappear from /proc/net/wireless */
338 if (orinoco_lock(priv, &flags) != 0)
339 return wstats;
340
341 /* We can't really wait for the tallies inquiry command to
342 * complete, so we just use the previous results and trigger
343 * a new tallies inquiry command for next time - Jean II */
344 /* FIXME: Really we should wait for the inquiry to come back -
345 * as it is the stats we give don't make a whole lot of sense.
346 * Unfortunately, it's not clear how to do that within the
347 * wireless extensions framework: I think we're in user
348 * context, but a lock seems to be held by the time we get in
349 * here so we're not safe to sleep here. */
350 hermes_inquire(hw, HERMES_INQ_TALLIES);
351
352 if (priv->iw_mode == IW_MODE_ADHOC) {
353 memset(&wstats->qual, 0, sizeof(wstats->qual));
354 /* If a spy address is defined, we report stats of the
355 * first spy address - Jean II */
356 if (SPY_NUMBER(priv)) {
357 wstats->qual.qual = priv->spy_data.spy_stat[0].qual;
358 wstats->qual.level = priv->spy_data.spy_stat[0].level;
359 wstats->qual.noise = priv->spy_data.spy_stat[0].noise;
360 wstats->qual.updated = priv->spy_data.spy_stat[0].updated;
361 }
362 } else {
363 struct {
364 __le16 qual, signal, noise, unused;
365 } __attribute__ ((packed)) cq;
366
367 err = HERMES_READ_RECORD(hw, USER_BAP,
368 HERMES_RID_COMMSQUALITY, &cq);
369
370 if (!err) {
371 wstats->qual.qual = (int)le16_to_cpu(cq.qual);
372 wstats->qual.level = (int)le16_to_cpu(cq.signal) - 0x95;
373 wstats->qual.noise = (int)le16_to_cpu(cq.noise) - 0x95;
374 wstats->qual.updated = 7;
375 }
376 }
377
378 orinoco_unlock(priv, &flags);
379 return wstats;
380 }
381
382 static void orinoco_set_multicast_list(struct net_device *dev)
383 {
384 struct orinoco_private *priv = netdev_priv(dev);
385 unsigned long flags;
386
387 if (orinoco_lock(priv, &flags) != 0) {
388 printk(KERN_DEBUG "%s: orinoco_set_multicast_list() "
389 "called when hw_unavailable\n", dev->name);
390 return;
391 }
392
393 __orinoco_set_multicast_list(dev);
394 orinoco_unlock(priv, &flags);
395 }
396
397 static int orinoco_change_mtu(struct net_device *dev, int new_mtu)
398 {
399 struct orinoco_private *priv = netdev_priv(dev);
400
401 if ( (new_mtu < ORINOCO_MIN_MTU) || (new_mtu > ORINOCO_MAX_MTU) )
402 return -EINVAL;
403
404 if ( (new_mtu + ENCAPS_OVERHEAD + IEEE80211_HLEN) >
405 (priv->nicbuf_size - ETH_HLEN) )
406 return -EINVAL;
407
408 dev->mtu = new_mtu;
409
410 return 0;
411 }
412
413 /********************************************************************/
414 /* Tx path */
415 /********************************************************************/
416
417 static int orinoco_xmit(struct sk_buff *skb, struct net_device *dev)
418 {
419 struct orinoco_private *priv = netdev_priv(dev);
420 struct net_device_stats *stats = &priv->stats;
421 hermes_t *hw = &priv->hw;
422 int err = 0;
423 u16 txfid = priv->txfid;
424 struct ethhdr *eh;
425 int data_off;
426 struct hermes_tx_descriptor desc;
427 unsigned long flags;
428
429 if (! netif_running(dev)) {
430 printk(KERN_ERR "%s: Tx on stopped device!\n",
431 dev->name);
432 return NETDEV_TX_BUSY;
433 }
434
435 if (netif_queue_stopped(dev)) {
436 printk(KERN_DEBUG "%s: Tx while transmitter busy!\n",
437 dev->name);
438 return NETDEV_TX_BUSY;
439 }
440
441 if (orinoco_lock(priv, &flags) != 0) {
442 printk(KERN_ERR "%s: orinoco_xmit() called while hw_unavailable\n",
443 dev->name);
444 return NETDEV_TX_BUSY;
445 }
446
447 if (! netif_carrier_ok(dev) || (priv->iw_mode == IW_MODE_MONITOR)) {
448 /* Oops, the firmware hasn't established a connection,
449 silently drop the packet (this seems to be the
450 safest approach). */
451 goto drop;
452 }
453
454 /* Check packet length */
455 if (skb->len < ETH_HLEN)
456 goto drop;
457
458 eh = (struct ethhdr *)skb->data;
459
460 memset(&desc, 0, sizeof(desc));
461 desc.tx_control = cpu_to_le16(HERMES_TXCTRL_TX_OK | HERMES_TXCTRL_TX_EX);
462 err = hermes_bap_pwrite(hw, USER_BAP, &desc, sizeof(desc), txfid, 0);
463 if (err) {
464 if (net_ratelimit())
465 printk(KERN_ERR "%s: Error %d writing Tx descriptor "
466 "to BAP\n", dev->name, err);
467 goto busy;
468 }
469
470 /* Clear the 802.11 header and data length fields - some
471 * firmwares (e.g. Lucent/Agere 8.xx) appear to get confused
472 * if this isn't done. */
473 hermes_clear_words(hw, HERMES_DATA0,
474 HERMES_802_3_OFFSET - HERMES_802_11_OFFSET);
475
476 /* Encapsulate Ethernet-II frames */
477 if (ntohs(eh->h_proto) > ETH_DATA_LEN) { /* Ethernet-II frame */
478 struct header_struct {
479 struct ethhdr eth; /* 802.3 header */
480 u8 encap[6]; /* 802.2 header */
481 } __attribute__ ((packed)) hdr;
482
483 /* Strip destination and source from the data */
484 skb_pull(skb, 2 * ETH_ALEN);
485 data_off = HERMES_802_2_OFFSET + sizeof(encaps_hdr);
486
487 /* And move them to a separate header */
488 memcpy(&hdr.eth, eh, 2 * ETH_ALEN);
489 hdr.eth.h_proto = htons(sizeof(encaps_hdr) + skb->len);
490 memcpy(hdr.encap, encaps_hdr, sizeof(encaps_hdr));
491
492 err = hermes_bap_pwrite(hw, USER_BAP, &hdr, sizeof(hdr),
493 txfid, HERMES_802_3_OFFSET);
494 if (err) {
495 if (net_ratelimit())
496 printk(KERN_ERR "%s: Error %d writing packet "
497 "header to BAP\n", dev->name, err);
498 goto busy;
499 }
500 } else { /* IEEE 802.3 frame */
501 data_off = HERMES_802_3_OFFSET;
502 }
503
504 err = hermes_bap_pwrite(hw, USER_BAP, skb->data, skb->len,
505 txfid, data_off);
506 if (err) {
507 printk(KERN_ERR "%s: Error %d writing packet to BAP\n",
508 dev->name, err);
509 goto busy;
510 }
511
512 /* Finally, we actually initiate the send */
513 netif_stop_queue(dev);
514
515 err = hermes_docmd_wait(hw, HERMES_CMD_TX | HERMES_CMD_RECL,
516 txfid, NULL);
517 if (err) {
518 netif_start_queue(dev);
519 if (net_ratelimit())
520 printk(KERN_ERR "%s: Error %d transmitting packet\n",
521 dev->name, err);
522 goto busy;
523 }
524
525 dev->trans_start = jiffies;
526 stats->tx_bytes += data_off + skb->len;
527 goto ok;
528
529 drop:
530 stats->tx_errors++;
531 stats->tx_dropped++;
532
533 ok:
534 orinoco_unlock(priv, &flags);
535 dev_kfree_skb(skb);
536 return NETDEV_TX_OK;
537
538 busy:
539 if (err == -EIO)
540 schedule_work(&priv->reset_work);
541 orinoco_unlock(priv, &flags);
542 return NETDEV_TX_BUSY;
543 }
544
545 static void __orinoco_ev_alloc(struct net_device *dev, hermes_t *hw)
546 {
547 struct orinoco_private *priv = netdev_priv(dev);
548 u16 fid = hermes_read_regn(hw, ALLOCFID);
549
550 if (fid != priv->txfid) {
551 if (fid != DUMMY_FID)
552 printk(KERN_WARNING "%s: Allocate event on unexpected fid (%04X)\n",
553 dev->name, fid);
554 return;
555 }
556
557 hermes_write_regn(hw, ALLOCFID, DUMMY_FID);
558 }
559
560 static void __orinoco_ev_tx(struct net_device *dev, hermes_t *hw)
561 {
562 struct orinoco_private *priv = netdev_priv(dev);
563 struct net_device_stats *stats = &priv->stats;
564
565 stats->tx_packets++;
566
567 netif_wake_queue(dev);
568
569 hermes_write_regn(hw, TXCOMPLFID, DUMMY_FID);
570 }
571
572 static void __orinoco_ev_txexc(struct net_device *dev, hermes_t *hw)
573 {
574 struct orinoco_private *priv = netdev_priv(dev);
575 struct net_device_stats *stats = &priv->stats;
576 u16 fid = hermes_read_regn(hw, TXCOMPLFID);
577 u16 status;
578 struct hermes_txexc_data hdr;
579 int err = 0;
580
581 if (fid == DUMMY_FID)
582 return; /* Nothing's really happened */
583
584 /* Read part of the frame header - we need status and addr1 */
585 err = hermes_bap_pread(hw, IRQ_BAP, &hdr,
586 sizeof(struct hermes_txexc_data),
587 fid, 0);
588
589 hermes_write_regn(hw, TXCOMPLFID, DUMMY_FID);
590 stats->tx_errors++;
591
592 if (err) {
593 printk(KERN_WARNING "%s: Unable to read descriptor on Tx error "
594 "(FID=%04X error %d)\n",
595 dev->name, fid, err);
596 return;
597 }
598
599 DEBUG(1, "%s: Tx error, err %d (FID=%04X)\n", dev->name,
600 err, fid);
601
602 /* We produce a TXDROP event only for retry or lifetime
603 * exceeded, because that's the only status that really mean
604 * that this particular node went away.
605 * Other errors means that *we* screwed up. - Jean II */
606 status = le16_to_cpu(hdr.desc.status);
607 if (status & (HERMES_TXSTAT_RETRYERR | HERMES_TXSTAT_AGEDERR)) {
608 union iwreq_data wrqu;
609
610 /* Copy 802.11 dest address.
611 * We use the 802.11 header because the frame may
612 * not be 802.3 or may be mangled...
613 * In Ad-Hoc mode, it will be the node address.
614 * In managed mode, it will be most likely the AP addr
615 * User space will figure out how to convert it to
616 * whatever it needs (IP address or else).
617 * - Jean II */
618 memcpy(wrqu.addr.sa_data, hdr.addr1, ETH_ALEN);
619 wrqu.addr.sa_family = ARPHRD_ETHER;
620
621 /* Send event to user space */
622 wireless_send_event(dev, IWEVTXDROP, &wrqu, NULL);
623 }
624
625 netif_wake_queue(dev);
626 }
627
628 static void orinoco_tx_timeout(struct net_device *dev)
629 {
630 struct orinoco_private *priv = netdev_priv(dev);
631 struct net_device_stats *stats = &priv->stats;
632 struct hermes *hw = &priv->hw;
633
634 printk(KERN_WARNING "%s: Tx timeout! "
635 "ALLOCFID=%04x, TXCOMPLFID=%04x, EVSTAT=%04x\n",
636 dev->name, hermes_read_regn(hw, ALLOCFID),
637 hermes_read_regn(hw, TXCOMPLFID), hermes_read_regn(hw, EVSTAT));
638
639 stats->tx_errors++;
640
641 schedule_work(&priv->reset_work);
642 }
643
644 /********************************************************************/
645 /* Rx path (data frames) */
646 /********************************************************************/
647
648 /* Does the frame have a SNAP header indicating it should be
649 * de-encapsulated to Ethernet-II? */
650 static inline int is_ethersnap(void *_hdr)
651 {
652 u8 *hdr = _hdr;
653
654 /* We de-encapsulate all packets which, a) have SNAP headers
655 * (i.e. SSAP=DSAP=0xaa and CTRL=0x3 in the 802.2 LLC header
656 * and where b) the OUI of the SNAP header is 00:00:00 or
657 * 00:00:f8 - we need both because different APs appear to use
658 * different OUIs for some reason */
659 return (memcmp(hdr, &encaps_hdr, 5) == 0)
660 && ( (hdr[5] == 0x00) || (hdr[5] == 0xf8) );
661 }
662
663 static inline void orinoco_spy_gather(struct net_device *dev, u_char *mac,
664 int level, int noise)
665 {
666 struct iw_quality wstats;
667 wstats.level = level - 0x95;
668 wstats.noise = noise - 0x95;
669 wstats.qual = (level > noise) ? (level - noise) : 0;
670 wstats.updated = 7;
671 /* Update spy records */
672 wireless_spy_update(dev, mac, &wstats);
673 }
674
675 static void orinoco_stat_gather(struct net_device *dev,
676 struct sk_buff *skb,
677 struct hermes_rx_descriptor *desc)
678 {
679 struct orinoco_private *priv = netdev_priv(dev);
680
681 /* Using spy support with lots of Rx packets, like in an
682 * infrastructure (AP), will really slow down everything, because
683 * the MAC address must be compared to each entry of the spy list.
684 * If the user really asks for it (set some address in the
685 * spy list), we do it, but he will pay the price.
686 * Note that to get here, you need both WIRELESS_SPY
687 * compiled in AND some addresses in the list !!!
688 */
689 /* Note : gcc will optimise the whole section away if
690 * WIRELESS_SPY is not defined... - Jean II */
691 if (SPY_NUMBER(priv)) {
692 orinoco_spy_gather(dev, skb_mac_header(skb) + ETH_ALEN,
693 desc->signal, desc->silence);
694 }
695 }
696
697 /*
698 * orinoco_rx_monitor - handle received monitor frames.
699 *
700 * Arguments:
701 * dev network device
702 * rxfid received FID
703 * desc rx descriptor of the frame
704 *
705 * Call context: interrupt
706 */
707 static void orinoco_rx_monitor(struct net_device *dev, u16 rxfid,
708 struct hermes_rx_descriptor *desc)
709 {
710 u32 hdrlen = 30; /* return full header by default */
711 u32 datalen = 0;
712 u16 fc;
713 int err;
714 int len;
715 struct sk_buff *skb;
716 struct orinoco_private *priv = netdev_priv(dev);
717 struct net_device_stats *stats = &priv->stats;
718 hermes_t *hw = &priv->hw;
719
720 len = le16_to_cpu(desc->data_len);
721
722 /* Determine the size of the header and the data */
723 fc = le16_to_cpu(desc->frame_ctl);
724 switch (fc & IEEE80211_FCTL_FTYPE) {
725 case IEEE80211_FTYPE_DATA:
726 if ((fc & IEEE80211_FCTL_TODS)
727 && (fc & IEEE80211_FCTL_FROMDS))
728 hdrlen = 30;
729 else
730 hdrlen = 24;
731 datalen = len;
732 break;
733 case IEEE80211_FTYPE_MGMT:
734 hdrlen = 24;
735 datalen = len;
736 break;
737 case IEEE80211_FTYPE_CTL:
738 switch (fc & IEEE80211_FCTL_STYPE) {
739 case IEEE80211_STYPE_PSPOLL:
740 case IEEE80211_STYPE_RTS:
741 case IEEE80211_STYPE_CFEND:
742 case IEEE80211_STYPE_CFENDACK:
743 hdrlen = 16;
744 break;
745 case IEEE80211_STYPE_CTS:
746 case IEEE80211_STYPE_ACK:
747 hdrlen = 10;
748 break;
749 }
750 break;
751 default:
752 /* Unknown frame type */
753 break;
754 }
755
756 /* sanity check the length */
757 if (datalen > IEEE80211_DATA_LEN + 12) {
758 printk(KERN_DEBUG "%s: oversized monitor frame, "
759 "data length = %d\n", dev->name, datalen);
760 stats->rx_length_errors++;
761 goto update_stats;
762 }
763
764 skb = dev_alloc_skb(hdrlen + datalen);
765 if (!skb) {
766 printk(KERN_WARNING "%s: Cannot allocate skb for monitor frame\n",
767 dev->name);
768 goto update_stats;
769 }
770
771 /* Copy the 802.11 header to the skb */
772 memcpy(skb_put(skb, hdrlen), &(desc->frame_ctl), hdrlen);
773 skb_reset_mac_header(skb);
774
775 /* If any, copy the data from the card to the skb */
776 if (datalen > 0) {
777 err = hermes_bap_pread(hw, IRQ_BAP, skb_put(skb, datalen),
778 ALIGN(datalen, 2), rxfid,
779 HERMES_802_2_OFFSET);
780 if (err) {
781 printk(KERN_ERR "%s: error %d reading monitor frame\n",
782 dev->name, err);
783 goto drop;
784 }
785 }
786
787 skb->dev = dev;
788 skb->ip_summed = CHECKSUM_NONE;
789 skb->pkt_type = PACKET_OTHERHOST;
790 skb->protocol = __constant_htons(ETH_P_802_2);
791
792 dev->last_rx = jiffies;
793 stats->rx_packets++;
794 stats->rx_bytes += skb->len;
795
796 netif_rx(skb);
797 return;
798
799 drop:
800 dev_kfree_skb_irq(skb);
801 update_stats:
802 stats->rx_errors++;
803 stats->rx_dropped++;
804 }
805
806 static void __orinoco_ev_rx(struct net_device *dev, hermes_t *hw)
807 {
808 struct orinoco_private *priv = netdev_priv(dev);
809 struct net_device_stats *stats = &priv->stats;
810 struct iw_statistics *wstats = &priv->wstats;
811 struct sk_buff *skb = NULL;
812 u16 rxfid, status, fc;
813 int length;
814 struct hermes_rx_descriptor desc;
815 struct ethhdr *hdr;
816 int err;
817
818 rxfid = hermes_read_regn(hw, RXFID);
819
820 err = hermes_bap_pread(hw, IRQ_BAP, &desc, sizeof(desc),
821 rxfid, 0);
822 if (err) {
823 printk(KERN_ERR "%s: error %d reading Rx descriptor. "
824 "Frame dropped.\n", dev->name, err);
825 goto update_stats;
826 }
827
828 status = le16_to_cpu(desc.status);
829
830 if (status & HERMES_RXSTAT_BADCRC) {
831 DEBUG(1, "%s: Bad CRC on Rx. Frame dropped.\n",
832 dev->name);
833 stats->rx_crc_errors++;
834 goto update_stats;
835 }
836
837 /* Handle frames in monitor mode */
838 if (priv->iw_mode == IW_MODE_MONITOR) {
839 orinoco_rx_monitor(dev, rxfid, &desc);
840 return;
841 }
842
843 if (status & HERMES_RXSTAT_UNDECRYPTABLE) {
844 DEBUG(1, "%s: Undecryptable frame on Rx. Frame dropped.\n",
845 dev->name);
846 wstats->discard.code++;
847 goto update_stats;
848 }
849
850 length = le16_to_cpu(desc.data_len);
851 fc = le16_to_cpu(desc.frame_ctl);
852
853 /* Sanity checks */
854 if (length < 3) { /* No for even an 802.2 LLC header */
855 /* At least on Symbol firmware with PCF we get quite a
856 lot of these legitimately - Poll frames with no
857 data. */
858 return;
859 }
860 if (length > IEEE80211_DATA_LEN) {
861 printk(KERN_WARNING "%s: Oversized frame received (%d bytes)\n",
862 dev->name, length);
863 stats->rx_length_errors++;
864 goto update_stats;
865 }
866
867 /* We need space for the packet data itself, plus an ethernet
868 header, plus 2 bytes so we can align the IP header on a
869 32bit boundary, plus 1 byte so we can read in odd length
870 packets from the card, which has an IO granularity of 16
871 bits */
872 skb = dev_alloc_skb(length+ETH_HLEN+2+1);
873 if (!skb) {
874 printk(KERN_WARNING "%s: Can't allocate skb for Rx\n",
875 dev->name);
876 goto update_stats;
877 }
878
879 /* We'll prepend the header, so reserve space for it. The worst
880 case is no decapsulation, when 802.3 header is prepended and
881 nothing is removed. 2 is for aligning the IP header. */
882 skb_reserve(skb, ETH_HLEN + 2);
883
884 err = hermes_bap_pread(hw, IRQ_BAP, skb_put(skb, length),
885 ALIGN(length, 2), rxfid,
886 HERMES_802_2_OFFSET);
887 if (err) {
888 printk(KERN_ERR "%s: error %d reading frame. "
889 "Frame dropped.\n", dev->name, err);
890 goto drop;
891 }
892
893 /* Handle decapsulation
894 * In most cases, the firmware tell us about SNAP frames.
895 * For some reason, the SNAP frames sent by LinkSys APs
896 * are not properly recognised by most firmwares.
897 * So, check ourselves */
898 if (length >= ENCAPS_OVERHEAD &&
899 (((status & HERMES_RXSTAT_MSGTYPE) == HERMES_RXSTAT_1042) ||
900 ((status & HERMES_RXSTAT_MSGTYPE) == HERMES_RXSTAT_TUNNEL) ||
901 is_ethersnap(skb->data))) {
902 /* These indicate a SNAP within 802.2 LLC within
903 802.11 frame which we'll need to de-encapsulate to
904 the original EthernetII frame. */
905 hdr = (struct ethhdr *)skb_push(skb, ETH_HLEN - ENCAPS_OVERHEAD);
906 } else {
907 /* 802.3 frame - prepend 802.3 header as is */
908 hdr = (struct ethhdr *)skb_push(skb, ETH_HLEN);
909 hdr->h_proto = htons(length);
910 }
911 memcpy(hdr->h_dest, desc.addr1, ETH_ALEN);
912 if (fc & IEEE80211_FCTL_FROMDS)
913 memcpy(hdr->h_source, desc.addr3, ETH_ALEN);
914 else
915 memcpy(hdr->h_source, desc.addr2, ETH_ALEN);
916
917 dev->last_rx = jiffies;
918 skb->protocol = eth_type_trans(skb, dev);
919 skb->ip_summed = CHECKSUM_NONE;
920 if (fc & IEEE80211_FCTL_TODS)
921 skb->pkt_type = PACKET_OTHERHOST;
922
923 /* Process the wireless stats if needed */
924 orinoco_stat_gather(dev, skb, &desc);
925
926 /* Pass the packet to the networking stack */
927 netif_rx(skb);
928 stats->rx_packets++;
929 stats->rx_bytes += length;
930
931 return;
932
933 drop:
934 dev_kfree_skb_irq(skb);
935 update_stats:
936 stats->rx_errors++;
937 stats->rx_dropped++;
938 }
939
940 /********************************************************************/
941 /* Rx path (info frames) */
942 /********************************************************************/
943
944 static void print_linkstatus(struct net_device *dev, u16 status)
945 {
946 char * s;
947
948 if (suppress_linkstatus)
949 return;
950
951 switch (status) {
952 case HERMES_LINKSTATUS_NOT_CONNECTED:
953 s = "Not Connected";
954 break;
955 case HERMES_LINKSTATUS_CONNECTED:
956 s = "Connected";
957 break;
958 case HERMES_LINKSTATUS_DISCONNECTED:
959 s = "Disconnected";
960 break;
961 case HERMES_LINKSTATUS_AP_CHANGE:
962 s = "AP Changed";
963 break;
964 case HERMES_LINKSTATUS_AP_OUT_OF_RANGE:
965 s = "AP Out of Range";
966 break;
967 case HERMES_LINKSTATUS_AP_IN_RANGE:
968 s = "AP In Range";
969 break;
970 case HERMES_LINKSTATUS_ASSOC_FAILED:
971 s = "Association Failed";
972 break;
973 default:
974 s = "UNKNOWN";
975 }
976
977 printk(KERN_INFO "%s: New link status: %s (%04x)\n",
978 dev->name, s, status);
979 }
980
981 /* Search scan results for requested BSSID, join it if found */
982 static void orinoco_join_ap(struct work_struct *work)
983 {
984 struct orinoco_private *priv =
985 container_of(work, struct orinoco_private, join_work);
986 struct net_device *dev = priv->ndev;
987 struct hermes *hw = &priv->hw;
988 int err;
989 unsigned long flags;
990 struct join_req {
991 u8 bssid[ETH_ALEN];
992 __le16 channel;
993 } __attribute__ ((packed)) req;
994 const int atom_len = offsetof(struct prism2_scan_apinfo, atim);
995 struct prism2_scan_apinfo *atom = NULL;
996 int offset = 4;
997 int found = 0;
998 u8 *buf;
999 u16 len;
1000
1001 /* Allocate buffer for scan results */
1002 buf = kmalloc(MAX_SCAN_LEN, GFP_KERNEL);
1003 if (! buf)
1004 return;
1005
1006 if (orinoco_lock(priv, &flags) != 0)
1007 goto fail_lock;
1008
1009 /* Sanity checks in case user changed something in the meantime */
1010 if (! priv->bssid_fixed)
1011 goto out;
1012
1013 if (strlen(priv->desired_essid) == 0)
1014 goto out;
1015
1016 /* Read scan results from the firmware */
1017 err = hermes_read_ltv(hw, USER_BAP,
1018 HERMES_RID_SCANRESULTSTABLE,
1019 MAX_SCAN_LEN, &len, buf);
1020 if (err) {
1021 printk(KERN_ERR "%s: Cannot read scan results\n",
1022 dev->name);
1023 goto out;
1024 }
1025
1026 len = HERMES_RECLEN_TO_BYTES(len);
1027
1028 /* Go through the scan results looking for the channel of the AP
1029 * we were requested to join */
1030 for (; offset + atom_len <= len; offset += atom_len) {
1031 atom = (struct prism2_scan_apinfo *) (buf + offset);
1032 if (memcmp(&atom->bssid, priv->desired_bssid, ETH_ALEN) == 0) {
1033 found = 1;
1034 break;
1035 }
1036 }
1037
1038 if (! found) {
1039 DEBUG(1, "%s: Requested AP not found in scan results\n",
1040 dev->name);
1041 goto out;
1042 }
1043
1044 memcpy(req.bssid, priv->desired_bssid, ETH_ALEN);
1045 req.channel = atom->channel; /* both are little-endian */
1046 err = HERMES_WRITE_RECORD(hw, USER_BAP, HERMES_RID_CNFJOINREQUEST,
1047 &req);
1048 if (err)
1049 printk(KERN_ERR "%s: Error issuing join request\n", dev->name);
1050
1051 out:
1052 orinoco_unlock(priv, &flags);
1053
1054 fail_lock:
1055 kfree(buf);
1056 }
1057
1058 /* Send new BSSID to userspace */
1059 static void orinoco_send_wevents(struct work_struct *work)
1060 {
1061 struct orinoco_private *priv =
1062 container_of(work, struct orinoco_private, wevent_work);
1063 struct net_device *dev = priv->ndev;
1064 struct hermes *hw = &priv->hw;
1065 union iwreq_data wrqu;
1066 int err;
1067 unsigned long flags;
1068
1069 if (orinoco_lock(priv, &flags) != 0)
1070 return;
1071
1072 err = hermes_read_ltv(hw, IRQ_BAP, HERMES_RID_CURRENTBSSID,
1073 ETH_ALEN, NULL, wrqu.ap_addr.sa_data);
1074 if (err != 0)
1075 goto out;
1076
1077 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
1078
1079 /* Send event to user space */
1080 wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
1081
1082 out:
1083 orinoco_unlock(priv, &flags);
1084 }
1085
1086 static void __orinoco_ev_info(struct net_device *dev, hermes_t *hw)
1087 {
1088 struct orinoco_private *priv = netdev_priv(dev);
1089 u16 infofid;
1090 struct {
1091 __le16 len;
1092 __le16 type;
1093 } __attribute__ ((packed)) info;
1094 int len, type;
1095 int err;
1096
1097 /* This is an answer to an INQUIRE command that we did earlier,
1098 * or an information "event" generated by the card
1099 * The controller return to us a pseudo frame containing
1100 * the information in question - Jean II */
1101 infofid = hermes_read_regn(hw, INFOFID);
1102
1103 /* Read the info frame header - don't try too hard */
1104 err = hermes_bap_pread(hw, IRQ_BAP, &info, sizeof(info),
1105 infofid, 0);
1106 if (err) {
1107 printk(KERN_ERR "%s: error %d reading info frame. "
1108 "Frame dropped.\n", dev->name, err);
1109 return;
1110 }
1111
1112 len = HERMES_RECLEN_TO_BYTES(le16_to_cpu(info.len));
1113 type = le16_to_cpu(info.type);
1114
1115 switch (type) {
1116 case HERMES_INQ_TALLIES: {
1117 struct hermes_tallies_frame tallies;
1118 struct iw_statistics *wstats = &priv->wstats;
1119
1120 if (len > sizeof(tallies)) {
1121 printk(KERN_WARNING "%s: Tallies frame too long (%d bytes)\n",
1122 dev->name, len);
1123 len = sizeof(tallies);
1124 }
1125
1126 err = hermes_bap_pread(hw, IRQ_BAP, &tallies, len,
1127 infofid, sizeof(info));
1128 if (err)
1129 break;
1130
1131 /* Increment our various counters */
1132 /* wstats->discard.nwid - no wrong BSSID stuff */
1133 wstats->discard.code +=
1134 le16_to_cpu(tallies.RxWEPUndecryptable);
1135 if (len == sizeof(tallies))
1136 wstats->discard.code +=
1137 le16_to_cpu(tallies.RxDiscards_WEPICVError) +
1138 le16_to_cpu(tallies.RxDiscards_WEPExcluded);
1139 wstats->discard.misc +=
1140 le16_to_cpu(tallies.TxDiscardsWrongSA);
1141 wstats->discard.fragment +=
1142 le16_to_cpu(tallies.RxMsgInBadMsgFragments);
1143 wstats->discard.retries +=
1144 le16_to_cpu(tallies.TxRetryLimitExceeded);
1145 /* wstats->miss.beacon - no match */
1146 }
1147 break;
1148 case HERMES_INQ_LINKSTATUS: {
1149 struct hermes_linkstatus linkstatus;
1150 u16 newstatus;
1151 int connected;
1152
1153 if (priv->iw_mode == IW_MODE_MONITOR)
1154 break;
1155
1156 if (len != sizeof(linkstatus)) {
1157 printk(KERN_WARNING "%s: Unexpected size for linkstatus frame (%d bytes)\n",
1158 dev->name, len);
1159 break;
1160 }
1161
1162 err = hermes_bap_pread(hw, IRQ_BAP, &linkstatus, len,
1163 infofid, sizeof(info));
1164 if (err)
1165 break;
1166 newstatus = le16_to_cpu(linkstatus.linkstatus);
1167
1168 /* Symbol firmware uses "out of range" to signal that
1169 * the hostscan frame can be requested. */
1170 if (newstatus == HERMES_LINKSTATUS_AP_OUT_OF_RANGE &&
1171 priv->firmware_type == FIRMWARE_TYPE_SYMBOL &&
1172 priv->has_hostscan && priv->scan_inprogress) {
1173 hermes_inquire(hw, HERMES_INQ_HOSTSCAN_SYMBOL);
1174 break;
1175 }
1176
1177 connected = (newstatus == HERMES_LINKSTATUS_CONNECTED)
1178 || (newstatus == HERMES_LINKSTATUS_AP_CHANGE)
1179 || (newstatus == HERMES_LINKSTATUS_AP_IN_RANGE);
1180
1181 if (connected)
1182 netif_carrier_on(dev);
1183 else if (!ignore_disconnect)
1184 netif_carrier_off(dev);
1185
1186 if (newstatus != priv->last_linkstatus) {
1187 priv->last_linkstatus = newstatus;
1188 print_linkstatus(dev, newstatus);
1189 /* The info frame contains only one word which is the
1190 * status (see hermes.h). The status is pretty boring
1191 * in itself, that's why we export the new BSSID...
1192 * Jean II */
1193 schedule_work(&priv->wevent_work);
1194 }
1195 }
1196 break;
1197 case HERMES_INQ_SCAN:
1198 if (!priv->scan_inprogress && priv->bssid_fixed &&
1199 priv->firmware_type == FIRMWARE_TYPE_INTERSIL) {
1200 schedule_work(&priv->join_work);
1201 break;
1202 }
1203 /* fall through */
1204 case HERMES_INQ_HOSTSCAN:
1205 case HERMES_INQ_HOSTSCAN_SYMBOL: {
1206 /* Result of a scanning. Contains information about
1207 * cells in the vicinity - Jean II */
1208 union iwreq_data wrqu;
1209 unsigned char *buf;
1210
1211 /* Sanity check */
1212 if (len > 4096) {
1213 printk(KERN_WARNING "%s: Scan results too large (%d bytes)\n",
1214 dev->name, len);
1215 break;
1216 }
1217
1218 /* We are a strict producer. If the previous scan results
1219 * have not been consumed, we just have to drop this
1220 * frame. We can't remove the previous results ourselves,
1221 * that would be *very* racy... Jean II */
1222 if (priv->scan_result != NULL) {
1223 printk(KERN_WARNING "%s: Previous scan results not consumed, dropping info frame.\n", dev->name);
1224 break;
1225 }
1226
1227 /* Allocate buffer for results */
1228 buf = kmalloc(len, GFP_ATOMIC);
1229 if (buf == NULL)
1230 /* No memory, so can't printk()... */
1231 break;
1232
1233 /* Read scan data */
1234 err = hermes_bap_pread(hw, IRQ_BAP, (void *) buf, len,
1235 infofid, sizeof(info));
1236 if (err) {
1237 kfree(buf);
1238 break;
1239 }
1240
1241 #ifdef ORINOCO_DEBUG
1242 {
1243 int i;
1244 printk(KERN_DEBUG "Scan result [%02X", buf[0]);
1245 for(i = 1; i < (len * 2); i++)
1246 printk(":%02X", buf[i]);
1247 printk("]\n");
1248 }
1249 #endif /* ORINOCO_DEBUG */
1250
1251 /* Allow the clients to access the results */
1252 priv->scan_len = len;
1253 priv->scan_result = buf;
1254
1255 /* Send an empty event to user space.
1256 * We don't send the received data on the event because
1257 * it would require us to do complex transcoding, and
1258 * we want to minimise the work done in the irq handler
1259 * Use a request to extract the data - Jean II */
1260 wrqu.data.length = 0;
1261 wrqu.data.flags = 0;
1262 wireless_send_event(dev, SIOCGIWSCAN, &wrqu, NULL);
1263 }
1264 break;
1265 case HERMES_INQ_SEC_STAT_AGERE:
1266 /* Security status (Agere specific) */
1267 /* Ignore this frame for now */
1268 if (priv->firmware_type == FIRMWARE_TYPE_AGERE)
1269 break;
1270 /* fall through */
1271 default:
1272 printk(KERN_DEBUG "%s: Unknown information frame received: "
1273 "type 0x%04x, length %d\n", dev->name, type, len);
1274 /* We don't actually do anything about it */
1275 break;
1276 }
1277 }
1278
1279 static void __orinoco_ev_infdrop(struct net_device *dev, hermes_t *hw)
1280 {
1281 if (net_ratelimit())
1282 printk(KERN_DEBUG "%s: Information frame lost.\n", dev->name);
1283 }
1284
1285 /********************************************************************/
1286 /* Internal hardware control routines */
1287 /********************************************************************/
1288
1289 int __orinoco_up(struct net_device *dev)
1290 {
1291 struct orinoco_private *priv = netdev_priv(dev);
1292 struct hermes *hw = &priv->hw;
1293 int err;
1294
1295 netif_carrier_off(dev); /* just to make sure */
1296
1297 err = __orinoco_program_rids(dev);
1298 if (err) {
1299 printk(KERN_ERR "%s: Error %d configuring card\n",
1300 dev->name, err);
1301 return err;
1302 }
1303
1304 /* Fire things up again */
1305 hermes_set_irqmask(hw, ORINOCO_INTEN);
1306 err = hermes_enable_port(hw, 0);
1307 if (err) {
1308 printk(KERN_ERR "%s: Error %d enabling MAC port\n",
1309 dev->name, err);
1310 return err;
1311 }
1312
1313 netif_start_queue(dev);
1314
1315 return 0;
1316 }
1317
1318 int __orinoco_down(struct net_device *dev)
1319 {
1320 struct orinoco_private *priv = netdev_priv(dev);
1321 struct hermes *hw = &priv->hw;
1322 int err;
1323
1324 netif_stop_queue(dev);
1325
1326 if (! priv->hw_unavailable) {
1327 if (! priv->broken_disableport) {
1328 err = hermes_disable_port(hw, 0);
1329 if (err) {
1330 /* Some firmwares (e.g. Intersil 1.3.x) seem
1331 * to have problems disabling the port, oh
1332 * well, too bad. */
1333 printk(KERN_WARNING "%s: Error %d disabling MAC port\n",
1334 dev->name, err);
1335 priv->broken_disableport = 1;
1336 }
1337 }
1338 hermes_set_irqmask(hw, 0);
1339 hermes_write_regn(hw, EVACK, 0xffff);
1340 }
1341
1342 /* firmware will have to reassociate */
1343 netif_carrier_off(dev);
1344 priv->last_linkstatus = 0xffff;
1345
1346 return 0;
1347 }
1348
1349 static int orinoco_allocate_fid(struct net_device *dev)
1350 {
1351 struct orinoco_private *priv = netdev_priv(dev);
1352 struct hermes *hw = &priv->hw;
1353 int err;
1354
1355 err = hermes_allocate(hw, priv->nicbuf_size, &priv->txfid);
1356 if (err == -EIO && priv->nicbuf_size > TX_NICBUF_SIZE_BUG) {
1357 /* Try workaround for old Symbol firmware bug */
1358 printk(KERN_WARNING "%s: firmware ALLOC bug detected "
1359 "(old Symbol firmware?). Trying to work around... ",
1360 dev->name);
1361
1362 priv->nicbuf_size = TX_NICBUF_SIZE_BUG;
1363 err = hermes_allocate(hw, priv->nicbuf_size, &priv->txfid);
1364 if (err)
1365 printk("failed!\n");
1366 else
1367 printk("ok.\n");
1368 }
1369
1370 return err;
1371 }
1372
1373 int orinoco_reinit_firmware(struct net_device *dev)
1374 {
1375 struct orinoco_private *priv = netdev_priv(dev);
1376 struct hermes *hw = &priv->hw;
1377 int err;
1378
1379 err = hermes_init(hw);
1380 if (!err)
1381 err = orinoco_allocate_fid(dev);
1382
1383 return err;
1384 }
1385
1386 static int __orinoco_hw_set_bitrate(struct orinoco_private *priv)
1387 {
1388 hermes_t *hw = &priv->hw;
1389 int err = 0;
1390
1391 if (priv->bitratemode >= BITRATE_TABLE_SIZE) {
1392 printk(KERN_ERR "%s: BUG: Invalid bitrate mode %d\n",
1393 priv->ndev->name, priv->bitratemode);
1394 return -EINVAL;
1395 }
1396
1397 switch (priv->firmware_type) {
1398 case FIRMWARE_TYPE_AGERE:
1399 err = hermes_write_wordrec(hw, USER_BAP,
1400 HERMES_RID_CNFTXRATECONTROL,
1401 bitrate_table[priv->bitratemode].agere_txratectrl);
1402 break;
1403 case FIRMWARE_TYPE_INTERSIL:
1404 case FIRMWARE_TYPE_SYMBOL:
1405 err = hermes_write_wordrec(hw, USER_BAP,
1406 HERMES_RID_CNFTXRATECONTROL,
1407 bitrate_table[priv->bitratemode].intersil_txratectrl);
1408 break;
1409 default:
1410 BUG();
1411 }
1412
1413 return err;
1414 }
1415
1416 /* Set fixed AP address */
1417 static int __orinoco_hw_set_wap(struct orinoco_private *priv)
1418 {
1419 int roaming_flag;
1420 int err = 0;
1421 hermes_t *hw = &priv->hw;
1422
1423 switch (priv->firmware_type) {
1424 case FIRMWARE_TYPE_AGERE:
1425 /* not supported */
1426 break;
1427 case FIRMWARE_TYPE_INTERSIL:
1428 if (priv->bssid_fixed)
1429 roaming_flag = 2;
1430 else
1431 roaming_flag = 1;
1432
1433 err = hermes_write_wordrec(hw, USER_BAP,
1434 HERMES_RID_CNFROAMINGMODE,
1435 roaming_flag);
1436 break;
1437 case FIRMWARE_TYPE_SYMBOL:
1438 err = HERMES_WRITE_RECORD(hw, USER_BAP,
1439 HERMES_RID_CNFMANDATORYBSSID_SYMBOL,
1440 &priv->desired_bssid);
1441 break;
1442 }
1443 return err;
1444 }
1445
1446 /* Change the WEP keys and/or the current keys. Can be called
1447 * either from __orinoco_hw_setup_wep() or directly from
1448 * orinoco_ioctl_setiwencode(). In the later case the association
1449 * with the AP is not broken (if the firmware can handle it),
1450 * which is needed for 802.1x implementations. */
1451 static int __orinoco_hw_setup_wepkeys(struct orinoco_private *priv)
1452 {
1453 hermes_t *hw = &priv->hw;
1454 int err = 0;
1455
1456 switch (priv->firmware_type) {
1457 case FIRMWARE_TYPE_AGERE:
1458 err = HERMES_WRITE_RECORD(hw, USER_BAP,
1459 HERMES_RID_CNFWEPKEYS_AGERE,
1460 &priv->keys);
1461 if (err)
1462 return err;
1463 err = hermes_write_wordrec(hw, USER_BAP,
1464 HERMES_RID_CNFTXKEY_AGERE,
1465 priv->tx_key);
1466 if (err)
1467 return err;
1468 break;
1469 case FIRMWARE_TYPE_INTERSIL:
1470 case FIRMWARE_TYPE_SYMBOL:
1471 {
1472 int keylen;
1473 int i;
1474
1475 /* Force uniform key length to work around firmware bugs */
1476 keylen = le16_to_cpu(priv->keys[priv->tx_key].len);
1477
1478 if (keylen > LARGE_KEY_SIZE) {
1479 printk(KERN_ERR "%s: BUG: Key %d has oversize length %d.\n",
1480 priv->ndev->name, priv->tx_key, keylen);
1481 return -E2BIG;
1482 }
1483
1484 /* Write all 4 keys */
1485 for(i = 0; i < ORINOCO_MAX_KEYS; i++) {
1486 err = hermes_write_ltv(hw, USER_BAP,
1487 HERMES_RID_CNFDEFAULTKEY0 + i,
1488 HERMES_BYTES_TO_RECLEN(keylen),
1489 priv->keys[i].data);
1490 if (err)
1491 return err;
1492 }
1493
1494 /* Write the index of the key used in transmission */
1495 err = hermes_write_wordrec(hw, USER_BAP,
1496 HERMES_RID_CNFWEPDEFAULTKEYID,
1497 priv->tx_key);
1498 if (err)
1499 return err;
1500 }
1501 break;
1502 }
1503
1504 return 0;
1505 }
1506
1507 static int __orinoco_hw_setup_wep(struct orinoco_private *priv)
1508 {
1509 hermes_t *hw = &priv->hw;
1510 int err = 0;
1511 int master_wep_flag;
1512 int auth_flag;
1513
1514 if (priv->wep_on)
1515 __orinoco_hw_setup_wepkeys(priv);
1516
1517 if (priv->wep_restrict)
1518 auth_flag = HERMES_AUTH_SHARED_KEY;
1519 else
1520 auth_flag = HERMES_AUTH_OPEN;
1521
1522 switch (priv->firmware_type) {
1523 case FIRMWARE_TYPE_AGERE: /* Agere style WEP */
1524 if (priv->wep_on) {
1525 /* Enable the shared-key authentication. */
1526 err = hermes_write_wordrec(hw, USER_BAP,
1527 HERMES_RID_CNFAUTHENTICATION_AGERE,
1528 auth_flag);
1529 }
1530 err = hermes_write_wordrec(hw, USER_BAP,
1531 HERMES_RID_CNFWEPENABLED_AGERE,
1532 priv->wep_on);
1533 if (err)
1534 return err;
1535 break;
1536
1537 case FIRMWARE_TYPE_INTERSIL: /* Intersil style WEP */
1538 case FIRMWARE_TYPE_SYMBOL: /* Symbol style WEP */
1539 if (priv->wep_on) {
1540 if (priv->wep_restrict ||
1541 (priv->firmware_type == FIRMWARE_TYPE_SYMBOL))
1542 master_wep_flag = HERMES_WEP_PRIVACY_INVOKED |
1543 HERMES_WEP_EXCL_UNENCRYPTED;
1544 else
1545 master_wep_flag = HERMES_WEP_PRIVACY_INVOKED;
1546
1547 err = hermes_write_wordrec(hw, USER_BAP,
1548 HERMES_RID_CNFAUTHENTICATION,
1549 auth_flag);
1550 if (err)
1551 return err;
1552 } else
1553 master_wep_flag = 0;
1554
1555 if (priv->iw_mode == IW_MODE_MONITOR)
1556 master_wep_flag |= HERMES_WEP_HOST_DECRYPT;
1557
1558 /* Master WEP setting : on/off */
1559 err = hermes_write_wordrec(hw, USER_BAP,
1560 HERMES_RID_CNFWEPFLAGS_INTERSIL,
1561 master_wep_flag);
1562 if (err)
1563 return err;
1564
1565 break;
1566 }
1567
1568 return 0;
1569 }
1570
1571 static int __orinoco_program_rids(struct net_device *dev)
1572 {
1573 struct orinoco_private *priv = netdev_priv(dev);
1574 hermes_t *hw = &priv->hw;
1575 int err;
1576 struct hermes_idstring idbuf;
1577
1578 /* Set the MAC address */
1579 err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFOWNMACADDR,
1580 HERMES_BYTES_TO_RECLEN(ETH_ALEN), dev->dev_addr);
1581 if (err) {
1582 printk(KERN_ERR "%s: Error %d setting MAC address\n",
1583 dev->name, err);
1584 return err;
1585 }
1586
1587 /* Set up the link mode */
1588 err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFPORTTYPE,
1589 priv->port_type);
1590 if (err) {
1591 printk(KERN_ERR "%s: Error %d setting port type\n",
1592 dev->name, err);
1593 return err;
1594 }
1595 /* Set the channel/frequency */
1596 if (priv->channel != 0 && priv->iw_mode != IW_MODE_INFRA) {
1597 err = hermes_write_wordrec(hw, USER_BAP,
1598 HERMES_RID_CNFOWNCHANNEL,
1599 priv->channel);
1600 if (err) {
1601 printk(KERN_ERR "%s: Error %d setting channel %d\n",
1602 dev->name, err, priv->channel);
1603 return err;
1604 }
1605 }
1606
1607 if (priv->has_ibss) {
1608 u16 createibss;
1609
1610 if ((strlen(priv->desired_essid) == 0) && (priv->createibss)) {
1611 printk(KERN_WARNING "%s: This firmware requires an "
1612 "ESSID in IBSS-Ad-Hoc mode.\n", dev->name);
1613 /* With wvlan_cs, in this case, we would crash.
1614 * hopefully, this driver will behave better...
1615 * Jean II */
1616 createibss = 0;
1617 } else {
1618 createibss = priv->createibss;
1619 }
1620
1621 err = hermes_write_wordrec(hw, USER_BAP,
1622 HERMES_RID_CNFCREATEIBSS,
1623 createibss);
1624 if (err) {
1625 printk(KERN_ERR "%s: Error %d setting CREATEIBSS\n",
1626 dev->name, err);
1627 return err;
1628 }
1629 }
1630
1631 /* Set the desired BSSID */
1632 err = __orinoco_hw_set_wap(priv);
1633 if (err) {
1634 printk(KERN_ERR "%s: Error %d setting AP address\n",
1635 dev->name, err);
1636 return err;
1637 }
1638 /* Set the desired ESSID */
1639 idbuf.len = cpu_to_le16(strlen(priv->desired_essid));
1640 memcpy(&idbuf.val, priv->desired_essid, sizeof(idbuf.val));
1641 /* WinXP wants partner to configure OWNSSID even in IBSS mode. (jimc) */
1642 err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFOWNSSID,
1643 HERMES_BYTES_TO_RECLEN(strlen(priv->desired_essid)+2),
1644 &idbuf);
1645 if (err) {
1646 printk(KERN_ERR "%s: Error %d setting OWNSSID\n",
1647 dev->name, err);
1648 return err;
1649 }
1650 err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFDESIREDSSID,
1651 HERMES_BYTES_TO_RECLEN(strlen(priv->desired_essid)+2),
1652 &idbuf);
1653 if (err) {
1654 printk(KERN_ERR "%s: Error %d setting DESIREDSSID\n",
1655 dev->name, err);
1656 return err;
1657 }
1658
1659 /* Set the station name */
1660 idbuf.len = cpu_to_le16(strlen(priv->nick));
1661 memcpy(&idbuf.val, priv->nick, sizeof(idbuf.val));
1662 err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFOWNNAME,
1663 HERMES_BYTES_TO_RECLEN(strlen(priv->nick)+2),
1664 &idbuf);
1665 if (err) {
1666 printk(KERN_ERR "%s: Error %d setting nickname\n",
1667 dev->name, err);
1668 return err;
1669 }
1670
1671 /* Set AP density */
1672 if (priv->has_sensitivity) {
1673 err = hermes_write_wordrec(hw, USER_BAP,
1674 HERMES_RID_CNFSYSTEMSCALE,
1675 priv->ap_density);
1676 if (err) {
1677 printk(KERN_WARNING "%s: Error %d setting SYSTEMSCALE. "
1678 "Disabling sensitivity control\n",
1679 dev->name, err);
1680
1681 priv->has_sensitivity = 0;
1682 }
1683 }
1684
1685 /* Set RTS threshold */
1686 err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFRTSTHRESHOLD,
1687 priv->rts_thresh);
1688 if (err) {
1689 printk(KERN_ERR "%s: Error %d setting RTS threshold\n",
1690 dev->name, err);
1691 return err;
1692 }
1693
1694 /* Set fragmentation threshold or MWO robustness */
1695 if (priv->has_mwo)
1696 err = hermes_write_wordrec(hw, USER_BAP,
1697 HERMES_RID_CNFMWOROBUST_AGERE,
1698 priv->mwo_robust);
1699 else
1700 err = hermes_write_wordrec(hw, USER_BAP,
1701 HERMES_RID_CNFFRAGMENTATIONTHRESHOLD,
1702 priv->frag_thresh);
1703 if (err) {
1704 printk(KERN_ERR "%s: Error %d setting fragmentation\n",
1705 dev->name, err);
1706 return err;
1707 }
1708
1709 /* Set bitrate */
1710 err = __orinoco_hw_set_bitrate(priv);
1711 if (err) {
1712 printk(KERN_ERR "%s: Error %d setting bitrate\n",
1713 dev->name, err);
1714 return err;
1715 }
1716
1717 /* Set power management */
1718 if (priv->has_pm) {
1719 err = hermes_write_wordrec(hw, USER_BAP,
1720 HERMES_RID_CNFPMENABLED,
1721 priv->pm_on);
1722 if (err) {
1723 printk(KERN_ERR "%s: Error %d setting up PM\n",
1724 dev->name, err);
1725 return err;
1726 }
1727
1728 err = hermes_write_wordrec(hw, USER_BAP,
1729 HERMES_RID_CNFMULTICASTRECEIVE,
1730 priv->pm_mcast);
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_CNFMAXSLEEPDURATION,
1738 priv->pm_period);
1739 if (err) {
1740 printk(KERN_ERR "%s: Error %d setting up PM\n",
1741 dev->name, err);
1742 return err;
1743 }
1744 err = hermes_write_wordrec(hw, USER_BAP,
1745 HERMES_RID_CNFPMHOLDOVERDURATION,
1746 priv->pm_timeout);
1747 if (err) {
1748 printk(KERN_ERR "%s: Error %d setting up PM\n",
1749 dev->name, err);
1750 return err;
1751 }
1752 }
1753
1754 /* Set preamble - only for Symbol so far... */
1755 if (priv->has_preamble) {
1756 err = hermes_write_wordrec(hw, USER_BAP,
1757 HERMES_RID_CNFPREAMBLE_SYMBOL,
1758 priv->preamble);
1759 if (err) {
1760 printk(KERN_ERR "%s: Error %d setting preamble\n",
1761 dev->name, err);
1762 return err;
1763 }
1764 }
1765
1766 /* Set up encryption */
1767 if (priv->has_wep) {
1768 err = __orinoco_hw_setup_wep(priv);
1769 if (err) {
1770 printk(KERN_ERR "%s: Error %d activating WEP\n",
1771 dev->name, err);
1772 return err;
1773 }
1774 }
1775
1776 if (priv->iw_mode == IW_MODE_MONITOR) {
1777 /* Enable monitor mode */
1778 dev->type = ARPHRD_IEEE80211;
1779 err = hermes_docmd_wait(hw, HERMES_CMD_TEST |
1780 HERMES_TEST_MONITOR, 0, NULL);
1781 } else {
1782 /* Disable monitor mode */
1783 dev->type = ARPHRD_ETHER;
1784 err = hermes_docmd_wait(hw, HERMES_CMD_TEST |
1785 HERMES_TEST_STOP, 0, NULL);
1786 }
1787 if (err)
1788 return err;
1789
1790 /* Set promiscuity / multicast*/
1791 priv->promiscuous = 0;
1792 priv->mc_count = 0;
1793
1794 /* FIXME: what about netif_tx_lock */
1795 __orinoco_set_multicast_list(dev);
1796
1797 return 0;
1798 }
1799
1800 /* FIXME: return int? */
1801 static void
1802 __orinoco_set_multicast_list(struct net_device *dev)
1803 {
1804 struct orinoco_private *priv = netdev_priv(dev);
1805 hermes_t *hw = &priv->hw;
1806 int err = 0;
1807 int promisc, mc_count;
1808
1809 /* The Hermes doesn't seem to have an allmulti mode, so we go
1810 * into promiscuous mode and let the upper levels deal. */
1811 if ( (dev->flags & IFF_PROMISC) || (dev->flags & IFF_ALLMULTI) ||
1812 (dev->mc_count > MAX_MULTICAST(priv)) ) {
1813 promisc = 1;
1814 mc_count = 0;
1815 } else {
1816 promisc = 0;
1817 mc_count = dev->mc_count;
1818 }
1819
1820 if (promisc != priv->promiscuous) {
1821 err = hermes_write_wordrec(hw, USER_BAP,
1822 HERMES_RID_CNFPROMISCUOUSMODE,
1823 promisc);
1824 if (err) {
1825 printk(KERN_ERR "%s: Error %d setting PROMISCUOUSMODE to 1.\n",
1826 dev->name, err);
1827 } else
1828 priv->promiscuous = promisc;
1829 }
1830
1831 if (! promisc && (mc_count || priv->mc_count) ) {
1832 struct dev_mc_list *p = dev->mc_list;
1833 struct hermes_multicast mclist;
1834 int i;
1835
1836 for (i = 0; i < mc_count; i++) {
1837 /* paranoia: is list shorter than mc_count? */
1838 BUG_ON(! p);
1839 /* paranoia: bad address size in list? */
1840 BUG_ON(p->dmi_addrlen != ETH_ALEN);
1841
1842 memcpy(mclist.addr[i], p->dmi_addr, ETH_ALEN);
1843 p = p->next;
1844 }
1845
1846 if (p)
1847 printk(KERN_WARNING "%s: Multicast list is "
1848 "longer than mc_count\n", dev->name);
1849
1850 err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFGROUPADDRESSES,
1851 HERMES_BYTES_TO_RECLEN(priv->mc_count * ETH_ALEN),
1852 &mclist);
1853 if (err)
1854 printk(KERN_ERR "%s: Error %d setting multicast list.\n",
1855 dev->name, err);
1856 else
1857 priv->mc_count = mc_count;
1858 }
1859
1860 /* Since we can set the promiscuous flag when it wasn't asked
1861 for, make sure the net_device knows about it. */
1862 if (priv->promiscuous)
1863 dev->flags |= IFF_PROMISC;
1864 else
1865 dev->flags &= ~IFF_PROMISC;
1866 }
1867
1868 /* This must be called from user context, without locks held - use
1869 * schedule_work() */
1870 static void orinoco_reset(struct work_struct *work)
1871 {
1872 struct orinoco_private *priv =
1873 container_of(work, struct orinoco_private, reset_work);
1874 struct net_device *dev = priv->ndev;
1875 struct hermes *hw = &priv->hw;
1876 int err;
1877 unsigned long flags;
1878
1879 if (orinoco_lock(priv, &flags) != 0)
1880 /* When the hardware becomes available again, whatever
1881 * detects that is responsible for re-initializing
1882 * it. So no need for anything further */
1883 return;
1884
1885 netif_stop_queue(dev);
1886
1887 /* Shut off interrupts. Depending on what state the hardware
1888 * is in, this might not work, but we'll try anyway */
1889 hermes_set_irqmask(hw, 0);
1890 hermes_write_regn(hw, EVACK, 0xffff);
1891
1892 priv->hw_unavailable++;
1893 priv->last_linkstatus = 0xffff; /* firmware will have to reassociate */
1894 netif_carrier_off(dev);
1895
1896 orinoco_unlock(priv, &flags);
1897
1898 /* Scanning support: Cleanup of driver struct */
1899 kfree(priv->scan_result);
1900 priv->scan_result = NULL;
1901 priv->scan_inprogress = 0;
1902
1903 if (priv->hard_reset) {
1904 err = (*priv->hard_reset)(priv);
1905 if (err) {
1906 printk(KERN_ERR "%s: orinoco_reset: Error %d "
1907 "performing hard reset\n", dev->name, err);
1908 goto disable;
1909 }
1910 }
1911
1912 err = orinoco_reinit_firmware(dev);
1913 if (err) {
1914 printk(KERN_ERR "%s: orinoco_reset: Error %d re-initializing firmware\n",
1915 dev->name, err);
1916 goto disable;
1917 }
1918
1919 spin_lock_irq(&priv->lock); /* This has to be called from user context */
1920
1921 priv->hw_unavailable--;
1922
1923 /* priv->open or priv->hw_unavailable might have changed while
1924 * we dropped the lock */
1925 if (priv->open && (! priv->hw_unavailable)) {
1926 err = __orinoco_up(dev);
1927 if (err) {
1928 printk(KERN_ERR "%s: orinoco_reset: Error %d reenabling card\n",
1929 dev->name, err);
1930 } else
1931 dev->trans_start = jiffies;
1932 }
1933
1934 spin_unlock_irq(&priv->lock);
1935
1936 return;
1937 disable:
1938 hermes_set_irqmask(hw, 0);
1939 netif_device_detach(dev);
1940 printk(KERN_ERR "%s: Device has been disabled!\n", dev->name);
1941 }
1942
1943 /********************************************************************/
1944 /* Interrupt handler */
1945 /********************************************************************/
1946
1947 static void __orinoco_ev_tick(struct net_device *dev, hermes_t *hw)
1948 {
1949 printk(KERN_DEBUG "%s: TICK\n", dev->name);
1950 }
1951
1952 static void __orinoco_ev_wterr(struct net_device *dev, hermes_t *hw)
1953 {
1954 /* This seems to happen a fair bit under load, but ignoring it
1955 seems to work fine...*/
1956 printk(KERN_DEBUG "%s: MAC controller error (WTERR). Ignoring.\n",
1957 dev->name);
1958 }
1959
1960 irqreturn_t orinoco_interrupt(int irq, void *dev_id)
1961 {
1962 struct net_device *dev = dev_id;
1963 struct orinoco_private *priv = netdev_priv(dev);
1964 hermes_t *hw = &priv->hw;
1965 int count = MAX_IRQLOOPS_PER_IRQ;
1966 u16 evstat, events;
1967 /* These are used to detect a runaway interrupt situation */
1968 /* If we get more than MAX_IRQLOOPS_PER_JIFFY iterations in a jiffy,
1969 * we panic and shut down the hardware */
1970 static int last_irq_jiffy = 0; /* jiffies value the last time
1971 * we were called */
1972 static int loops_this_jiffy = 0;
1973 unsigned long flags;
1974
1975 if (orinoco_lock(priv, &flags) != 0) {
1976 /* If hw is unavailable - we don't know if the irq was
1977 * for us or not */
1978 return IRQ_HANDLED;
1979 }
1980
1981 evstat = hermes_read_regn(hw, EVSTAT);
1982 events = evstat & hw->inten;
1983 if (! events) {
1984 orinoco_unlock(priv, &flags);
1985 return IRQ_NONE;
1986 }
1987
1988 if (jiffies != last_irq_jiffy)
1989 loops_this_jiffy = 0;
1990 last_irq_jiffy = jiffies;
1991
1992 while (events && count--) {
1993 if (++loops_this_jiffy > MAX_IRQLOOPS_PER_JIFFY) {
1994 printk(KERN_WARNING "%s: IRQ handler is looping too "
1995 "much! Resetting.\n", dev->name);
1996 /* Disable interrupts for now */
1997 hermes_set_irqmask(hw, 0);
1998 schedule_work(&priv->reset_work);
1999 break;
2000 }
2001
2002 /* Check the card hasn't been removed */
2003 if (! hermes_present(hw)) {
2004 DEBUG(0, "orinoco_interrupt(): card removed\n");
2005 break;
2006 }
2007
2008 if (events & HERMES_EV_TICK)
2009 __orinoco_ev_tick(dev, hw);
2010 if (events & HERMES_EV_WTERR)
2011 __orinoco_ev_wterr(dev, hw);
2012 if (events & HERMES_EV_INFDROP)
2013 __orinoco_ev_infdrop(dev, hw);
2014 if (events & HERMES_EV_INFO)
2015 __orinoco_ev_info(dev, hw);
2016 if (events & HERMES_EV_RX)
2017 __orinoco_ev_rx(dev, hw);
2018 if (events & HERMES_EV_TXEXC)
2019 __orinoco_ev_txexc(dev, hw);
2020 if (events & HERMES_EV_TX)
2021 __orinoco_ev_tx(dev, hw);
2022 if (events & HERMES_EV_ALLOC)
2023 __orinoco_ev_alloc(dev, hw);
2024
2025 hermes_write_regn(hw, EVACK, evstat);
2026
2027 evstat = hermes_read_regn(hw, EVSTAT);
2028 events = evstat & hw->inten;
2029 };
2030
2031 orinoco_unlock(priv, &flags);
2032 return IRQ_HANDLED;
2033 }
2034
2035 /********************************************************************/
2036 /* Initialization */
2037 /********************************************************************/
2038
2039 struct comp_id {
2040 u16 id, variant, major, minor;
2041 } __attribute__ ((packed));
2042
2043 static inline fwtype_t determine_firmware_type(struct comp_id *nic_id)
2044 {
2045 if (nic_id->id < 0x8000)
2046 return FIRMWARE_TYPE_AGERE;
2047 else if (nic_id->id == 0x8000 && nic_id->major == 0)
2048 return FIRMWARE_TYPE_SYMBOL;
2049 else
2050 return FIRMWARE_TYPE_INTERSIL;
2051 }
2052
2053 /* Set priv->firmware type, determine firmware properties */
2054 static int determine_firmware(struct net_device *dev)
2055 {
2056 struct orinoco_private *priv = netdev_priv(dev);
2057 hermes_t *hw = &priv->hw;
2058 int err;
2059 struct comp_id nic_id, sta_id;
2060 unsigned int firmver;
2061 char tmp[SYMBOL_MAX_VER_LEN+1] __attribute__((aligned(2)));
2062
2063 /* Get the hardware version */
2064 err = HERMES_READ_RECORD(hw, USER_BAP, HERMES_RID_NICID, &nic_id);
2065 if (err) {
2066 printk(KERN_ERR "%s: Cannot read hardware identity: error %d\n",
2067 dev->name, err);
2068 return err;
2069 }
2070
2071 le16_to_cpus(&nic_id.id);
2072 le16_to_cpus(&nic_id.variant);
2073 le16_to_cpus(&nic_id.major);
2074 le16_to_cpus(&nic_id.minor);
2075 printk(KERN_DEBUG "%s: Hardware identity %04x:%04x:%04x:%04x\n",
2076 dev->name, nic_id.id, nic_id.variant,
2077 nic_id.major, nic_id.minor);
2078
2079 priv->firmware_type = determine_firmware_type(&nic_id);
2080
2081 /* Get the firmware version */
2082 err = HERMES_READ_RECORD(hw, USER_BAP, HERMES_RID_STAID, &sta_id);
2083 if (err) {
2084 printk(KERN_ERR "%s: Cannot read station identity: error %d\n",
2085 dev->name, err);
2086 return err;
2087 }
2088
2089 le16_to_cpus(&sta_id.id);
2090 le16_to_cpus(&sta_id.variant);
2091 le16_to_cpus(&sta_id.major);
2092 le16_to_cpus(&sta_id.minor);
2093 printk(KERN_DEBUG "%s: Station identity %04x:%04x:%04x:%04x\n",
2094 dev->name, sta_id.id, sta_id.variant,
2095 sta_id.major, sta_id.minor);
2096
2097 switch (sta_id.id) {
2098 case 0x15:
2099 printk(KERN_ERR "%s: Primary firmware is active\n",
2100 dev->name);
2101 return -ENODEV;
2102 case 0x14b:
2103 printk(KERN_ERR "%s: Tertiary firmware is active\n",
2104 dev->name);
2105 return -ENODEV;
2106 case 0x1f: /* Intersil, Agere, Symbol Spectrum24 */
2107 case 0x21: /* Symbol Spectrum24 Trilogy */
2108 break;
2109 default:
2110 printk(KERN_NOTICE "%s: Unknown station ID, please report\n",
2111 dev->name);
2112 break;
2113 }
2114
2115 /* Default capabilities */
2116 priv->has_sensitivity = 1;
2117 priv->has_mwo = 0;
2118 priv->has_preamble = 0;
2119 priv->has_port3 = 1;
2120 priv->has_ibss = 1;
2121 priv->has_wep = 0;
2122 priv->has_big_wep = 0;
2123
2124 /* Determine capabilities from the firmware version */
2125 switch (priv->firmware_type) {
2126 case FIRMWARE_TYPE_AGERE:
2127 /* Lucent Wavelan IEEE, Lucent Orinoco, Cabletron RoamAbout,
2128 ELSA, Melco, HP, IBM, Dell 1150, Compaq 110/210 */
2129 snprintf(priv->fw_name, sizeof(priv->fw_name) - 1,
2130 "Lucent/Agere %d.%02d", sta_id.major, sta_id.minor);
2131
2132 firmver = ((unsigned long)sta_id.major << 16) | sta_id.minor;
2133
2134 priv->has_ibss = (firmver >= 0x60006);
2135 priv->has_wep = (firmver >= 0x40020);
2136 priv->has_big_wep = 1; /* FIXME: this is wrong - how do we tell
2137 Gold cards from the others? */
2138 priv->has_mwo = (firmver >= 0x60000);
2139 priv->has_pm = (firmver >= 0x40020); /* Don't work in 7.52 ? */
2140 priv->ibss_port = 1;
2141 priv->has_hostscan = (firmver >= 0x8000a);
2142 priv->broken_monitor = (firmver >= 0x80000);
2143
2144 /* Tested with Agere firmware :
2145 * 1.16 ; 4.08 ; 4.52 ; 6.04 ; 6.16 ; 7.28 => Jean II
2146 * Tested CableTron firmware : 4.32 => Anton */
2147 break;
2148 case FIRMWARE_TYPE_SYMBOL:
2149 /* Symbol , 3Com AirConnect, Intel, Ericsson WLAN */
2150 /* Intel MAC : 00:02:B3:* */
2151 /* 3Com MAC : 00:50:DA:* */
2152 memset(tmp, 0, sizeof(tmp));
2153 /* Get the Symbol firmware version */
2154 err = hermes_read_ltv(hw, USER_BAP,
2155 HERMES_RID_SECONDARYVERSION_SYMBOL,
2156 SYMBOL_MAX_VER_LEN, NULL, &tmp);
2157 if (err) {
2158 printk(KERN_WARNING
2159 "%s: Error %d reading Symbol firmware info. Wildly guessing capabilities...\n",
2160 dev->name, err);
2161 firmver = 0;
2162 tmp[0] = '\0';
2163 } else {
2164 /* The firmware revision is a string, the format is
2165 * something like : "V2.20-01".
2166 * Quick and dirty parsing... - Jean II
2167 */
2168 firmver = ((tmp[1] - '0') << 16) | ((tmp[3] - '0') << 12)
2169 | ((tmp[4] - '0') << 8) | ((tmp[6] - '0') << 4)
2170 | (tmp[7] - '0');
2171
2172 tmp[SYMBOL_MAX_VER_LEN] = '\0';
2173 }
2174
2175 snprintf(priv->fw_name, sizeof(priv->fw_name) - 1,
2176 "Symbol %s", tmp);
2177
2178 priv->has_ibss = (firmver >= 0x20000);
2179 priv->has_wep = (firmver >= 0x15012);
2180 priv->has_big_wep = (firmver >= 0x20000);
2181 priv->has_pm = (firmver >= 0x20000 && firmver < 0x22000) ||
2182 (firmver >= 0x29000 && firmver < 0x30000) ||
2183 firmver >= 0x31000;
2184 priv->has_preamble = (firmver >= 0x20000);
2185 priv->ibss_port = 4;
2186 priv->broken_disableport = (firmver == 0x25013) ||
2187 (firmver >= 0x30000 && firmver <= 0x31000);
2188 priv->has_hostscan = (firmver >= 0x31001) ||
2189 (firmver >= 0x29057 && firmver < 0x30000);
2190 /* Tested with Intel firmware : 0x20015 => Jean II */
2191 /* Tested with 3Com firmware : 0x15012 & 0x22001 => Jean II */
2192 break;
2193 case FIRMWARE_TYPE_INTERSIL:
2194 /* D-Link, Linksys, Adtron, ZoomAir, and many others...
2195 * Samsung, Compaq 100/200 and Proxim are slightly
2196 * different and less well tested */
2197 /* D-Link MAC : 00:40:05:* */
2198 /* Addtron MAC : 00:90:D1:* */
2199 snprintf(priv->fw_name, sizeof(priv->fw_name) - 1,
2200 "Intersil %d.%d.%d", sta_id.major, sta_id.minor,
2201 sta_id.variant);
2202
2203 firmver = ((unsigned long)sta_id.major << 16) |
2204 ((unsigned long)sta_id.minor << 8) | sta_id.variant;
2205
2206 priv->has_ibss = (firmver >= 0x000700); /* FIXME */
2207 priv->has_big_wep = priv->has_wep = (firmver >= 0x000800);
2208 priv->has_pm = (firmver >= 0x000700);
2209 priv->has_hostscan = (firmver >= 0x010301);
2210
2211 if (firmver >= 0x000800)
2212 priv->ibss_port = 0;
2213 else {
2214 printk(KERN_NOTICE "%s: Intersil firmware earlier "
2215 "than v0.8.x - several features not supported\n",
2216 dev->name);
2217 priv->ibss_port = 1;
2218 }
2219 break;
2220 }
2221 printk(KERN_DEBUG "%s: Firmware determined as %s\n", dev->name,
2222 priv->fw_name);
2223
2224 return 0;
2225 }
2226
2227 static int orinoco_init(struct net_device *dev)
2228 {
2229 struct orinoco_private *priv = netdev_priv(dev);
2230 hermes_t *hw = &priv->hw;
2231 int err = 0;
2232 struct hermes_idstring nickbuf;
2233 u16 reclen;
2234 int len;
2235
2236 /* No need to lock, the hw_unavailable flag is already set in
2237 * alloc_orinocodev() */
2238 priv->nicbuf_size = IEEE80211_FRAME_LEN + ETH_HLEN;
2239
2240 /* Initialize the firmware */
2241 err = hermes_init(hw);
2242 if (err != 0) {
2243 printk(KERN_ERR "%s: failed to initialize firmware (err = %d)\n",
2244 dev->name, err);
2245 goto out;
2246 }
2247
2248 err = determine_firmware(dev);
2249 if (err != 0) {
2250 printk(KERN_ERR "%s: Incompatible firmware, aborting\n",
2251 dev->name);
2252 goto out;
2253 }
2254
2255 if (priv->has_port3)
2256 printk(KERN_DEBUG "%s: Ad-hoc demo mode supported\n", dev->name);
2257 if (priv->has_ibss)
2258 printk(KERN_DEBUG "%s: IEEE standard IBSS ad-hoc mode supported\n",
2259 dev->name);
2260 if (priv->has_wep) {
2261 printk(KERN_DEBUG "%s: WEP supported, ", dev->name);
2262 if (priv->has_big_wep)
2263 printk("104-bit key\n");
2264 else
2265 printk("40-bit key\n");
2266 }
2267
2268 /* Get the MAC address */
2269 err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CNFOWNMACADDR,
2270 ETH_ALEN, NULL, dev->dev_addr);
2271 if (err) {
2272 printk(KERN_WARNING "%s: failed to read MAC address!\n",
2273 dev->name);
2274 goto out;
2275 }
2276
2277 printk(KERN_DEBUG "%s: MAC address %02X:%02X:%02X:%02X:%02X:%02X\n",
2278 dev->name, dev->dev_addr[0], dev->dev_addr[1],
2279 dev->dev_addr[2], dev->dev_addr[3], dev->dev_addr[4],
2280 dev->dev_addr[5]);
2281
2282 /* Get the station name */
2283 err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CNFOWNNAME,
2284 sizeof(nickbuf), &reclen, &nickbuf);
2285 if (err) {
2286 printk(KERN_ERR "%s: failed to read station name\n",
2287 dev->name);
2288 goto out;
2289 }
2290 if (nickbuf.len)
2291 len = min(IW_ESSID_MAX_SIZE, (int)le16_to_cpu(nickbuf.len));
2292 else
2293 len = min(IW_ESSID_MAX_SIZE, 2 * reclen);
2294 memcpy(priv->nick, &nickbuf.val, len);
2295 priv->nick[len] = '\0';
2296
2297 printk(KERN_DEBUG "%s: Station name \"%s\"\n", dev->name, priv->nick);
2298
2299 err = orinoco_allocate_fid(dev);
2300 if (err) {
2301 printk(KERN_ERR "%s: failed to allocate NIC buffer!\n",
2302 dev->name);
2303 goto out;
2304 }
2305
2306 /* Get allowed channels */
2307 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CHANNELLIST,
2308 &priv->channel_mask);
2309 if (err) {
2310 printk(KERN_ERR "%s: failed to read channel list!\n",
2311 dev->name);
2312 goto out;
2313 }
2314
2315 /* Get initial AP density */
2316 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFSYSTEMSCALE,
2317 &priv->ap_density);
2318 if (err || priv->ap_density < 1 || priv->ap_density > 3) {
2319 priv->has_sensitivity = 0;
2320 }
2321
2322 /* Get initial RTS threshold */
2323 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFRTSTHRESHOLD,
2324 &priv->rts_thresh);
2325 if (err) {
2326 printk(KERN_ERR "%s: failed to read RTS threshold!\n",
2327 dev->name);
2328 goto out;
2329 }
2330
2331 /* Get initial fragmentation settings */
2332 if (priv->has_mwo)
2333 err = hermes_read_wordrec(hw, USER_BAP,
2334 HERMES_RID_CNFMWOROBUST_AGERE,
2335 &priv->mwo_robust);
2336 else
2337 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFFRAGMENTATIONTHRESHOLD,
2338 &priv->frag_thresh);
2339 if (err) {
2340 printk(KERN_ERR "%s: failed to read fragmentation settings!\n",
2341 dev->name);
2342 goto out;
2343 }
2344
2345 /* Power management setup */
2346 if (priv->has_pm) {
2347 priv->pm_on = 0;
2348 priv->pm_mcast = 1;
2349 err = hermes_read_wordrec(hw, USER_BAP,
2350 HERMES_RID_CNFMAXSLEEPDURATION,
2351 &priv->pm_period);
2352 if (err) {
2353 printk(KERN_ERR "%s: failed to read power management period!\n",
2354 dev->name);
2355 goto out;
2356 }
2357 err = hermes_read_wordrec(hw, USER_BAP,
2358 HERMES_RID_CNFPMHOLDOVERDURATION,
2359 &priv->pm_timeout);
2360 if (err) {
2361 printk(KERN_ERR "%s: failed to read power management timeout!\n",
2362 dev->name);
2363 goto out;
2364 }
2365 }
2366
2367 /* Preamble setup */
2368 if (priv->has_preamble) {
2369 err = hermes_read_wordrec(hw, USER_BAP,
2370 HERMES_RID_CNFPREAMBLE_SYMBOL,
2371 &priv->preamble);
2372 if (err)
2373 goto out;
2374 }
2375
2376 /* Set up the default configuration */
2377 priv->iw_mode = IW_MODE_INFRA;
2378 /* By default use IEEE/IBSS ad-hoc mode if we have it */
2379 priv->prefer_port3 = priv->has_port3 && (! priv->has_ibss);
2380 set_port_type(priv);
2381 priv->channel = 0; /* use firmware default */
2382
2383 priv->promiscuous = 0;
2384 priv->wep_on = 0;
2385 priv->tx_key = 0;
2386
2387 /* Make the hardware available, as long as it hasn't been
2388 * removed elsewhere (e.g. by PCMCIA hot unplug) */
2389 spin_lock_irq(&priv->lock);
2390 priv->hw_unavailable--;
2391 spin_unlock_irq(&priv->lock);
2392
2393 printk(KERN_DEBUG "%s: ready\n", dev->name);
2394
2395 out:
2396 return err;
2397 }
2398
2399 struct net_device *alloc_orinocodev(int sizeof_card,
2400 int (*hard_reset)(struct orinoco_private *))
2401 {
2402 struct net_device *dev;
2403 struct orinoco_private *priv;
2404
2405 dev = alloc_etherdev(sizeof(struct orinoco_private) + sizeof_card);
2406 if (! dev)
2407 return NULL;
2408 priv = netdev_priv(dev);
2409 priv->ndev = dev;
2410 if (sizeof_card)
2411 priv->card = (void *)((unsigned long)priv
2412 + sizeof(struct orinoco_private));
2413 else
2414 priv->card = NULL;
2415
2416 /* Setup / override net_device fields */
2417 dev->init = orinoco_init;
2418 dev->hard_start_xmit = orinoco_xmit;
2419 dev->tx_timeout = orinoco_tx_timeout;
2420 dev->watchdog_timeo = HZ; /* 1 second timeout */
2421 dev->get_stats = orinoco_get_stats;
2422 dev->ethtool_ops = &orinoco_ethtool_ops;
2423 dev->wireless_handlers = (struct iw_handler_def *)&orinoco_handler_def;
2424 #ifdef WIRELESS_SPY
2425 priv->wireless_data.spy_data = &priv->spy_data;
2426 dev->wireless_data = &priv->wireless_data;
2427 #endif
2428 dev->change_mtu = orinoco_change_mtu;
2429 dev->set_multicast_list = orinoco_set_multicast_list;
2430 /* we use the default eth_mac_addr for setting the MAC addr */
2431
2432 /* Set up default callbacks */
2433 dev->open = orinoco_open;
2434 dev->stop = orinoco_stop;
2435 priv->hard_reset = hard_reset;
2436
2437 spin_lock_init(&priv->lock);
2438 priv->open = 0;
2439 priv->hw_unavailable = 1; /* orinoco_init() must clear this
2440 * before anything else touches the
2441 * hardware */
2442 INIT_WORK(&priv->reset_work, orinoco_reset);
2443 INIT_WORK(&priv->join_work, orinoco_join_ap);
2444 INIT_WORK(&priv->wevent_work, orinoco_send_wevents);
2445
2446 netif_carrier_off(dev);
2447 priv->last_linkstatus = 0xffff;
2448
2449 return dev;
2450
2451 }
2452
2453 void free_orinocodev(struct net_device *dev)
2454 {
2455 struct orinoco_private *priv = netdev_priv(dev);
2456
2457 kfree(priv->scan_result);
2458 free_netdev(dev);
2459 }
2460
2461 /********************************************************************/
2462 /* Wireless extensions */
2463 /********************************************************************/
2464
2465 /* Return : < 0 -> error code ; >= 0 -> length */
2466 static int orinoco_hw_get_essid(struct orinoco_private *priv, int *active,
2467 char buf[IW_ESSID_MAX_SIZE+1])
2468 {
2469 hermes_t *hw = &priv->hw;
2470 int err = 0;
2471 struct hermes_idstring essidbuf;
2472 char *p = (char *)(&essidbuf.val);
2473 int len;
2474 unsigned long flags;
2475
2476 if (orinoco_lock(priv, &flags) != 0)
2477 return -EBUSY;
2478
2479 if (strlen(priv->desired_essid) > 0) {
2480 /* We read the desired SSID from the hardware rather
2481 than from priv->desired_essid, just in case the
2482 firmware is allowed to change it on us. I'm not
2483 sure about this */
2484 /* My guess is that the OWNSSID should always be whatever
2485 * we set to the card, whereas CURRENT_SSID is the one that
2486 * may change... - Jean II */
2487 u16 rid;
2488
2489 *active = 1;
2490
2491 rid = (priv->port_type == 3) ? HERMES_RID_CNFOWNSSID :
2492 HERMES_RID_CNFDESIREDSSID;
2493
2494 err = hermes_read_ltv(hw, USER_BAP, rid, sizeof(essidbuf),
2495 NULL, &essidbuf);
2496 if (err)
2497 goto fail_unlock;
2498 } else {
2499 *active = 0;
2500
2501 err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CURRENTSSID,
2502 sizeof(essidbuf), NULL, &essidbuf);
2503 if (err)
2504 goto fail_unlock;
2505 }
2506
2507 len = le16_to_cpu(essidbuf.len);
2508 BUG_ON(len > IW_ESSID_MAX_SIZE);
2509
2510 memset(buf, 0, IW_ESSID_MAX_SIZE);
2511 memcpy(buf, p, len);
2512 err = len;
2513
2514 fail_unlock:
2515 orinoco_unlock(priv, &flags);
2516
2517 return err;
2518 }
2519
2520 static long orinoco_hw_get_freq(struct orinoco_private *priv)
2521 {
2522
2523 hermes_t *hw = &priv->hw;
2524 int err = 0;
2525 u16 channel;
2526 long freq = 0;
2527 unsigned long flags;
2528
2529 if (orinoco_lock(priv, &flags) != 0)
2530 return -EBUSY;
2531
2532 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CURRENTCHANNEL, &channel);
2533 if (err)
2534 goto out;
2535
2536 /* Intersil firmware 1.3.5 returns 0 when the interface is down */
2537 if (channel == 0) {
2538 err = -EBUSY;
2539 goto out;
2540 }
2541
2542 if ( (channel < 1) || (channel > NUM_CHANNELS) ) {
2543 printk(KERN_WARNING "%s: Channel out of range (%d)!\n",
2544 priv->ndev->name, channel);
2545 err = -EBUSY;
2546 goto out;
2547
2548 }
2549 freq = channel_frequency[channel-1] * 100000;
2550
2551 out:
2552 orinoco_unlock(priv, &flags);
2553
2554 if (err > 0)
2555 err = -EBUSY;
2556 return err ? err : freq;
2557 }
2558
2559 static int orinoco_hw_get_bitratelist(struct orinoco_private *priv,
2560 int *numrates, s32 *rates, int max)
2561 {
2562 hermes_t *hw = &priv->hw;
2563 struct hermes_idstring list;
2564 unsigned char *p = (unsigned char *)&list.val;
2565 int err = 0;
2566 int num;
2567 int i;
2568 unsigned long flags;
2569
2570 if (orinoco_lock(priv, &flags) != 0)
2571 return -EBUSY;
2572
2573 err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_SUPPORTEDDATARATES,
2574 sizeof(list), NULL, &list);
2575 orinoco_unlock(priv, &flags);
2576
2577 if (err)
2578 return err;
2579
2580 num = le16_to_cpu(list.len);
2581 *numrates = num;
2582 num = min(num, max);
2583
2584 for (i = 0; i < num; i++) {
2585 rates[i] = (p[i] & 0x7f) * 500000; /* convert to bps */
2586 }
2587
2588 return 0;
2589 }
2590
2591 static int orinoco_ioctl_getname(struct net_device *dev,
2592 struct iw_request_info *info,
2593 char *name,
2594 char *extra)
2595 {
2596 struct orinoco_private *priv = netdev_priv(dev);
2597 int numrates;
2598 int err;
2599
2600 err = orinoco_hw_get_bitratelist(priv, &numrates, NULL, 0);
2601
2602 if (!err && (numrates > 2))
2603 strcpy(name, "IEEE 802.11b");
2604 else
2605 strcpy(name, "IEEE 802.11-DS");
2606
2607 return 0;
2608 }
2609
2610 static int orinoco_ioctl_setwap(struct net_device *dev,
2611 struct iw_request_info *info,
2612 struct sockaddr *ap_addr,
2613 char *extra)
2614 {
2615 struct orinoco_private *priv = netdev_priv(dev);
2616 int err = -EINPROGRESS; /* Call commit handler */
2617 unsigned long flags;
2618 static const u8 off_addr[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
2619 static const u8 any_addr[] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
2620
2621 if (orinoco_lock(priv, &flags) != 0)
2622 return -EBUSY;
2623
2624 /* Enable automatic roaming - no sanity checks are needed */
2625 if (memcmp(&ap_addr->sa_data, off_addr, ETH_ALEN) == 0 ||
2626 memcmp(&ap_addr->sa_data, any_addr, ETH_ALEN) == 0) {
2627 priv->bssid_fixed = 0;
2628 memset(priv->desired_bssid, 0, ETH_ALEN);
2629
2630 /* "off" means keep existing connection */
2631 if (ap_addr->sa_data[0] == 0) {
2632 __orinoco_hw_set_wap(priv);
2633 err = 0;
2634 }
2635 goto out;
2636 }
2637
2638 if (priv->firmware_type == FIRMWARE_TYPE_AGERE) {
2639 printk(KERN_WARNING "%s: Lucent/Agere firmware doesn't "
2640 "support manual roaming\n",
2641 dev->name);
2642 err = -EOPNOTSUPP;
2643 goto out;
2644 }
2645
2646 if (priv->iw_mode != IW_MODE_INFRA) {
2647 printk(KERN_WARNING "%s: Manual roaming supported only in "
2648 "managed mode\n", dev->name);
2649 err = -EOPNOTSUPP;
2650 goto out;
2651 }
2652
2653 /* Intersil firmware hangs without Desired ESSID */
2654 if (priv->firmware_type == FIRMWARE_TYPE_INTERSIL &&
2655 strlen(priv->desired_essid) == 0) {
2656 printk(KERN_WARNING "%s: Desired ESSID must be set for "
2657 "manual roaming\n", dev->name);
2658 err = -EOPNOTSUPP;
2659 goto out;
2660 }
2661
2662 /* Finally, enable manual roaming */
2663 priv->bssid_fixed = 1;
2664 memcpy(priv->desired_bssid, &ap_addr->sa_data, ETH_ALEN);
2665
2666 out:
2667 orinoco_unlock(priv, &flags);
2668 return err;
2669 }
2670
2671 static int orinoco_ioctl_getwap(struct net_device *dev,
2672 struct iw_request_info *info,
2673 struct sockaddr *ap_addr,
2674 char *extra)
2675 {
2676 struct orinoco_private *priv = netdev_priv(dev);
2677
2678 hermes_t *hw = &priv->hw;
2679 int err = 0;
2680 unsigned long flags;
2681
2682 if (orinoco_lock(priv, &flags) != 0)
2683 return -EBUSY;
2684
2685 ap_addr->sa_family = ARPHRD_ETHER;
2686 err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CURRENTBSSID,
2687 ETH_ALEN, NULL, ap_addr->sa_data);
2688
2689 orinoco_unlock(priv, &flags);
2690
2691 return err;
2692 }
2693
2694 static int orinoco_ioctl_setmode(struct net_device *dev,
2695 struct iw_request_info *info,
2696 u32 *mode,
2697 char *extra)
2698 {
2699 struct orinoco_private *priv = netdev_priv(dev);
2700 int err = -EINPROGRESS; /* Call commit handler */
2701 unsigned long flags;
2702
2703 if (priv->iw_mode == *mode)
2704 return 0;
2705
2706 if (orinoco_lock(priv, &flags) != 0)
2707 return -EBUSY;
2708
2709 switch (*mode) {
2710 case IW_MODE_ADHOC:
2711 if (!priv->has_ibss && !priv->has_port3)
2712 err = -EOPNOTSUPP;
2713 break;
2714
2715 case IW_MODE_INFRA:
2716 break;
2717
2718 case IW_MODE_MONITOR:
2719 if (priv->broken_monitor && !force_monitor) {
2720 printk(KERN_WARNING "%s: Monitor mode support is "
2721 "buggy in this firmware, not enabling\n",
2722 dev->name);
2723 err = -EOPNOTSUPP;
2724 }
2725 break;
2726
2727 default:
2728 err = -EOPNOTSUPP;
2729 break;
2730 }
2731
2732 if (err == -EINPROGRESS) {
2733 priv->iw_mode = *mode;
2734 set_port_type(priv);
2735 }
2736
2737 orinoco_unlock(priv, &flags);
2738
2739 return err;
2740 }
2741
2742 static int orinoco_ioctl_getmode(struct net_device *dev,
2743 struct iw_request_info *info,
2744 u32 *mode,
2745 char *extra)
2746 {
2747 struct orinoco_private *priv = netdev_priv(dev);
2748
2749 *mode = priv->iw_mode;
2750 return 0;
2751 }
2752
2753 static int orinoco_ioctl_getiwrange(struct net_device *dev,
2754 struct iw_request_info *info,
2755 struct iw_point *rrq,
2756 char *extra)
2757 {
2758 struct orinoco_private *priv = netdev_priv(dev);
2759 int err = 0;
2760 struct iw_range *range = (struct iw_range *) extra;
2761 int numrates;
2762 int i, k;
2763
2764 rrq->length = sizeof(struct iw_range);
2765 memset(range, 0, sizeof(struct iw_range));
2766
2767 range->we_version_compiled = WIRELESS_EXT;
2768 range->we_version_source = 14;
2769
2770 /* Set available channels/frequencies */
2771 range->num_channels = NUM_CHANNELS;
2772 k = 0;
2773 for (i = 0; i < NUM_CHANNELS; i++) {
2774 if (priv->channel_mask & (1 << i)) {
2775 range->freq[k].i = i + 1;
2776 range->freq[k].m = channel_frequency[i] * 100000;
2777 range->freq[k].e = 1;
2778 k++;
2779 }
2780
2781 if (k >= IW_MAX_FREQUENCIES)
2782 break;
2783 }
2784 range->num_frequency = k;
2785 range->sensitivity = 3;
2786
2787 if (priv->has_wep) {
2788 range->max_encoding_tokens = ORINOCO_MAX_KEYS;
2789 range->encoding_size[0] = SMALL_KEY_SIZE;
2790 range->num_encoding_sizes = 1;
2791
2792 if (priv->has_big_wep) {
2793 range->encoding_size[1] = LARGE_KEY_SIZE;
2794 range->num_encoding_sizes = 2;
2795 }
2796 }
2797
2798 if ((priv->iw_mode == IW_MODE_ADHOC) && (!SPY_NUMBER(priv))){
2799 /* Quality stats meaningless in ad-hoc mode */
2800 } else {
2801 range->max_qual.qual = 0x8b - 0x2f;
2802 range->max_qual.level = 0x2f - 0x95 - 1;
2803 range->max_qual.noise = 0x2f - 0x95 - 1;
2804 /* Need to get better values */
2805 range->avg_qual.qual = 0x24;
2806 range->avg_qual.level = 0xC2;
2807 range->avg_qual.noise = 0x9E;
2808 }
2809
2810 err = orinoco_hw_get_bitratelist(priv, &numrates,
2811 range->bitrate, IW_MAX_BITRATES);
2812 if (err)
2813 return err;
2814 range->num_bitrates = numrates;
2815
2816 /* Set an indication of the max TCP throughput in bit/s that we can
2817 * expect using this interface. May be use for QoS stuff...
2818 * Jean II */
2819 if (numrates > 2)
2820 range->throughput = 5 * 1000 * 1000; /* ~5 Mb/s */
2821 else
2822 range->throughput = 1.5 * 1000 * 1000; /* ~1.5 Mb/s */
2823
2824 range->min_rts = 0;
2825 range->max_rts = 2347;
2826 range->min_frag = 256;
2827 range->max_frag = 2346;
2828
2829 range->min_pmp = 0;
2830 range->max_pmp = 65535000;
2831 range->min_pmt = 0;
2832 range->max_pmt = 65535 * 1000; /* ??? */
2833 range->pmp_flags = IW_POWER_PERIOD;
2834 range->pmt_flags = IW_POWER_TIMEOUT;
2835 range->pm_capa = IW_POWER_PERIOD | IW_POWER_TIMEOUT | IW_POWER_UNICAST_R;
2836
2837 range->retry_capa = IW_RETRY_LIMIT | IW_RETRY_LIFETIME;
2838 range->retry_flags = IW_RETRY_LIMIT;
2839 range->r_time_flags = IW_RETRY_LIFETIME;
2840 range->min_retry = 0;
2841 range->max_retry = 65535; /* ??? */
2842 range->min_r_time = 0;
2843 range->max_r_time = 65535 * 1000; /* ??? */
2844
2845 /* Event capability (kernel) */
2846 IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
2847 /* Event capability (driver) */
2848 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWTHRSPY);
2849 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
2850 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
2851 IW_EVENT_CAPA_SET(range->event_capa, IWEVTXDROP);
2852
2853 return 0;
2854 }
2855
2856 static int orinoco_ioctl_setiwencode(struct net_device *dev,
2857 struct iw_request_info *info,
2858 struct iw_point *erq,
2859 char *keybuf)
2860 {
2861 struct orinoco_private *priv = netdev_priv(dev);
2862 int index = (erq->flags & IW_ENCODE_INDEX) - 1;
2863 int setindex = priv->tx_key;
2864 int enable = priv->wep_on;
2865 int restricted = priv->wep_restrict;
2866 u16 xlen = 0;
2867 int err = -EINPROGRESS; /* Call commit handler */
2868 unsigned long flags;
2869
2870 if (! priv->has_wep)
2871 return -EOPNOTSUPP;
2872
2873 if (erq->pointer) {
2874 /* We actually have a key to set - check its length */
2875 if (erq->length > LARGE_KEY_SIZE)
2876 return -E2BIG;
2877
2878 if ( (erq->length > SMALL_KEY_SIZE) && !priv->has_big_wep )
2879 return -E2BIG;
2880 }
2881
2882 if (orinoco_lock(priv, &flags) != 0)
2883 return -EBUSY;
2884
2885 if (erq->length > 0) {
2886 if ((index < 0) || (index >= ORINOCO_MAX_KEYS))
2887 index = priv->tx_key;
2888
2889 /* Adjust key length to a supported value */
2890 if (erq->length > SMALL_KEY_SIZE) {
2891 xlen = LARGE_KEY_SIZE;
2892 } else if (erq->length > 0) {
2893 xlen = SMALL_KEY_SIZE;
2894 } else
2895 xlen = 0;
2896
2897 /* Switch on WEP if off */
2898 if ((!enable) && (xlen > 0)) {
2899 setindex = index;
2900 enable = 1;
2901 }
2902 } else {
2903 /* Important note : if the user do "iwconfig eth0 enc off",
2904 * we will arrive there with an index of -1. This is valid
2905 * but need to be taken care off... Jean II */
2906 if ((index < 0) || (index >= ORINOCO_MAX_KEYS)) {
2907 if((index != -1) || (erq->flags == 0)) {
2908 err = -EINVAL;
2909 goto out;
2910 }
2911 } else {
2912 /* Set the index : Check that the key is valid */
2913 if(priv->keys[index].len == 0) {
2914 err = -EINVAL;
2915 goto out;
2916 }
2917 setindex = index;
2918 }
2919 }
2920
2921 if (erq->flags & IW_ENCODE_DISABLED)
2922 enable = 0;
2923 if (erq->flags & IW_ENCODE_OPEN)
2924 restricted = 0;
2925 if (erq->flags & IW_ENCODE_RESTRICTED)
2926 restricted = 1;
2927
2928 if (erq->pointer && erq->length > 0) {
2929 priv->keys[index].len = cpu_to_le16(xlen);
2930 memset(priv->keys[index].data, 0,
2931 sizeof(priv->keys[index].data));
2932 memcpy(priv->keys[index].data, keybuf, erq->length);
2933 }
2934 priv->tx_key = setindex;
2935
2936 /* Try fast key change if connected and only keys are changed */
2937 if (priv->wep_on && enable && (priv->wep_restrict == restricted) &&
2938 netif_carrier_ok(dev)) {
2939 err = __orinoco_hw_setup_wepkeys(priv);
2940 /* No need to commit if successful */
2941 goto out;
2942 }
2943
2944 priv->wep_on = enable;
2945 priv->wep_restrict = restricted;
2946
2947 out:
2948 orinoco_unlock(priv, &flags);
2949
2950 return err;
2951 }
2952
2953 static int orinoco_ioctl_getiwencode(struct net_device *dev,
2954 struct iw_request_info *info,
2955 struct iw_point *erq,
2956 char *keybuf)
2957 {
2958 struct orinoco_private *priv = netdev_priv(dev);
2959 int index = (erq->flags & IW_ENCODE_INDEX) - 1;
2960 u16 xlen = 0;
2961 unsigned long flags;
2962
2963 if (! priv->has_wep)
2964 return -EOPNOTSUPP;
2965
2966 if (orinoco_lock(priv, &flags) != 0)
2967 return -EBUSY;
2968
2969 if ((index < 0) || (index >= ORINOCO_MAX_KEYS))
2970 index = priv->tx_key;
2971
2972 erq->flags = 0;
2973 if (! priv->wep_on)
2974 erq->flags |= IW_ENCODE_DISABLED;
2975 erq->flags |= index + 1;
2976
2977 if (priv->wep_restrict)
2978 erq->flags |= IW_ENCODE_RESTRICTED;
2979 else
2980 erq->flags |= IW_ENCODE_OPEN;
2981
2982 xlen = le16_to_cpu(priv->keys[index].len);
2983
2984 erq->length = xlen;
2985
2986 memcpy(keybuf, priv->keys[index].data, ORINOCO_MAX_KEY_SIZE);
2987
2988 orinoco_unlock(priv, &flags);
2989 return 0;
2990 }
2991
2992 static int orinoco_ioctl_setessid(struct net_device *dev,
2993 struct iw_request_info *info,
2994 struct iw_point *erq,
2995 char *essidbuf)
2996 {
2997 struct orinoco_private *priv = netdev_priv(dev);
2998 unsigned long flags;
2999
3000 /* Note : ESSID is ignored in Ad-Hoc demo mode, but we can set it
3001 * anyway... - Jean II */
3002
3003 /* Hum... Should not use Wireless Extension constant (may change),
3004 * should use our own... - Jean II */
3005 if (erq->length > IW_ESSID_MAX_SIZE)
3006 return -E2BIG;
3007
3008 if (orinoco_lock(priv, &flags) != 0)
3009 return -EBUSY;
3010
3011 /* NULL the string (for NULL termination & ESSID = ANY) - Jean II */
3012 memset(priv->desired_essid, 0, sizeof(priv->desired_essid));
3013
3014 /* If not ANY, get the new ESSID */
3015 if (erq->flags) {
3016 memcpy(priv->desired_essid, essidbuf, erq->length);
3017 }
3018
3019 orinoco_unlock(priv, &flags);
3020
3021 return -EINPROGRESS; /* Call commit handler */
3022 }
3023
3024 static int orinoco_ioctl_getessid(struct net_device *dev,
3025 struct iw_request_info *info,
3026 struct iw_point *erq,
3027 char *essidbuf)
3028 {
3029 struct orinoco_private *priv = netdev_priv(dev);
3030 int active;
3031 int err = 0;
3032 unsigned long flags;
3033
3034 if (netif_running(dev)) {
3035 err = orinoco_hw_get_essid(priv, &active, essidbuf);
3036 if (err < 0)
3037 return err;
3038 erq->length = err;
3039 } else {
3040 if (orinoco_lock(priv, &flags) != 0)
3041 return -EBUSY;
3042 memcpy(essidbuf, priv->desired_essid, IW_ESSID_MAX_SIZE);
3043 erq->length = strlen(priv->desired_essid);
3044 orinoco_unlock(priv, &flags);
3045 }
3046
3047 erq->flags = 1;
3048
3049 return 0;
3050 }
3051
3052 static int orinoco_ioctl_setnick(struct net_device *dev,
3053 struct iw_request_info *info,
3054 struct iw_point *nrq,
3055 char *nickbuf)
3056 {
3057 struct orinoco_private *priv = netdev_priv(dev);
3058 unsigned long flags;
3059
3060 if (nrq->length > IW_ESSID_MAX_SIZE)
3061 return -E2BIG;
3062
3063 if (orinoco_lock(priv, &flags) != 0)
3064 return -EBUSY;
3065
3066 memset(priv->nick, 0, sizeof(priv->nick));
3067 memcpy(priv->nick, nickbuf, nrq->length);
3068
3069 orinoco_unlock(priv, &flags);
3070
3071 return -EINPROGRESS; /* Call commit handler */
3072 }
3073
3074 static int orinoco_ioctl_getnick(struct net_device *dev,
3075 struct iw_request_info *info,
3076 struct iw_point *nrq,
3077 char *nickbuf)
3078 {
3079 struct orinoco_private *priv = netdev_priv(dev);
3080 unsigned long flags;
3081
3082 if (orinoco_lock(priv, &flags) != 0)
3083 return -EBUSY;
3084
3085 memcpy(nickbuf, priv->nick, IW_ESSID_MAX_SIZE);
3086 orinoco_unlock(priv, &flags);
3087
3088 nrq->length = strlen(priv->nick);
3089
3090 return 0;
3091 }
3092
3093 static int orinoco_ioctl_setfreq(struct net_device *dev,
3094 struct iw_request_info *info,
3095 struct iw_freq *frq,
3096 char *extra)
3097 {
3098 struct orinoco_private *priv = netdev_priv(dev);
3099 int chan = -1;
3100 unsigned long flags;
3101 int err = -EINPROGRESS; /* Call commit handler */
3102
3103 /* In infrastructure mode the AP sets the channel */
3104 if (priv->iw_mode == IW_MODE_INFRA)
3105 return -EBUSY;
3106
3107 if ( (frq->e == 0) && (frq->m <= 1000) ) {
3108 /* Setting by channel number */
3109 chan = frq->m;
3110 } else {
3111 /* Setting by frequency - search the table */
3112 int mult = 1;
3113 int i;
3114
3115 for (i = 0; i < (6 - frq->e); i++)
3116 mult *= 10;
3117
3118 for (i = 0; i < NUM_CHANNELS; i++)
3119 if (frq->m == (channel_frequency[i] * mult))
3120 chan = i+1;
3121 }
3122
3123 if ( (chan < 1) || (chan > NUM_CHANNELS) ||
3124 ! (priv->channel_mask & (1 << (chan-1)) ) )
3125 return -EINVAL;
3126
3127 if (orinoco_lock(priv, &flags) != 0)
3128 return -EBUSY;
3129
3130 priv->channel = chan;
3131 if (priv->iw_mode == IW_MODE_MONITOR) {
3132 /* Fast channel change - no commit if successful */
3133 hermes_t *hw = &priv->hw;
3134 err = hermes_docmd_wait(hw, HERMES_CMD_TEST |
3135 HERMES_TEST_SET_CHANNEL,
3136 chan, NULL);
3137 }
3138 orinoco_unlock(priv, &flags);
3139
3140 return err;
3141 }
3142
3143 static int orinoco_ioctl_getfreq(struct net_device *dev,
3144 struct iw_request_info *info,
3145 struct iw_freq *frq,
3146 char *extra)
3147 {
3148 struct orinoco_private *priv = netdev_priv(dev);
3149 int tmp;
3150
3151 /* Locking done in there */
3152 tmp = orinoco_hw_get_freq(priv);
3153 if (tmp < 0) {
3154 return tmp;
3155 }
3156
3157 frq->m = tmp;
3158 frq->e = 1;
3159
3160 return 0;
3161 }
3162
3163 static int orinoco_ioctl_getsens(struct net_device *dev,
3164 struct iw_request_info *info,
3165 struct iw_param *srq,
3166 char *extra)
3167 {
3168 struct orinoco_private *priv = netdev_priv(dev);
3169 hermes_t *hw = &priv->hw;
3170 u16 val;
3171 int err;
3172 unsigned long flags;
3173
3174 if (!priv->has_sensitivity)
3175 return -EOPNOTSUPP;
3176
3177 if (orinoco_lock(priv, &flags) != 0)
3178 return -EBUSY;
3179 err = hermes_read_wordrec(hw, USER_BAP,
3180 HERMES_RID_CNFSYSTEMSCALE, &val);
3181 orinoco_unlock(priv, &flags);
3182
3183 if (err)
3184 return err;
3185
3186 srq->value = val;
3187 srq->fixed = 0; /* auto */
3188
3189 return 0;
3190 }
3191
3192 static int orinoco_ioctl_setsens(struct net_device *dev,
3193 struct iw_request_info *info,
3194 struct iw_param *srq,
3195 char *extra)
3196 {
3197 struct orinoco_private *priv = netdev_priv(dev);
3198 int val = srq->value;
3199 unsigned long flags;
3200
3201 if (!priv->has_sensitivity)
3202 return -EOPNOTSUPP;
3203
3204 if ((val < 1) || (val > 3))
3205 return -EINVAL;
3206
3207 if (orinoco_lock(priv, &flags) != 0)
3208 return -EBUSY;
3209 priv->ap_density = val;
3210 orinoco_unlock(priv, &flags);
3211
3212 return -EINPROGRESS; /* Call commit handler */
3213 }
3214
3215 static int orinoco_ioctl_setrts(struct net_device *dev,
3216 struct iw_request_info *info,
3217 struct iw_param *rrq,
3218 char *extra)
3219 {
3220 struct orinoco_private *priv = netdev_priv(dev);
3221 int val = rrq->value;
3222 unsigned long flags;
3223
3224 if (rrq->disabled)
3225 val = 2347;
3226
3227 if ( (val < 0) || (val > 2347) )
3228 return -EINVAL;
3229
3230 if (orinoco_lock(priv, &flags) != 0)
3231 return -EBUSY;
3232
3233 priv->rts_thresh = val;
3234 orinoco_unlock(priv, &flags);
3235
3236 return -EINPROGRESS; /* Call commit handler */
3237 }
3238
3239 static int orinoco_ioctl_getrts(struct net_device *dev,
3240 struct iw_request_info *info,
3241 struct iw_param *rrq,
3242 char *extra)
3243 {
3244 struct orinoco_private *priv = netdev_priv(dev);
3245
3246 rrq->value = priv->rts_thresh;
3247 rrq->disabled = (rrq->value == 2347);
3248 rrq->fixed = 1;
3249
3250 return 0;
3251 }
3252
3253 static int orinoco_ioctl_setfrag(struct net_device *dev,
3254 struct iw_request_info *info,
3255 struct iw_param *frq,
3256 char *extra)
3257 {
3258 struct orinoco_private *priv = netdev_priv(dev);
3259 int err = -EINPROGRESS; /* Call commit handler */
3260 unsigned long flags;
3261
3262 if (orinoco_lock(priv, &flags) != 0)
3263 return -EBUSY;
3264
3265 if (priv->has_mwo) {
3266 if (frq->disabled)
3267 priv->mwo_robust = 0;
3268 else {
3269 if (frq->fixed)
3270 printk(KERN_WARNING "%s: Fixed fragmentation is "
3271 "not supported on this firmware. "
3272 "Using MWO robust instead.\n", dev->name);
3273 priv->mwo_robust = 1;
3274 }
3275 } else {
3276 if (frq->disabled)
3277 priv->frag_thresh = 2346;
3278 else {
3279 if ( (frq->value < 256) || (frq->value > 2346) )
3280 err = -EINVAL;
3281 else
3282 priv->frag_thresh = frq->value & ~0x1; /* must be even */
3283 }
3284 }
3285
3286 orinoco_unlock(priv, &flags);
3287
3288 return err;
3289 }
3290
3291 static int orinoco_ioctl_getfrag(struct net_device *dev,
3292 struct iw_request_info *info,
3293 struct iw_param *frq,
3294 char *extra)
3295 {
3296 struct orinoco_private *priv = netdev_priv(dev);
3297 hermes_t *hw = &priv->hw;
3298 int err;
3299 u16 val;
3300 unsigned long flags;
3301
3302 if (orinoco_lock(priv, &flags) != 0)
3303 return -EBUSY;
3304
3305 if (priv->has_mwo) {
3306 err = hermes_read_wordrec(hw, USER_BAP,
3307 HERMES_RID_CNFMWOROBUST_AGERE,
3308 &val);
3309 if (err)
3310 val = 0;
3311
3312 frq->value = val ? 2347 : 0;
3313 frq->disabled = ! val;
3314 frq->fixed = 0;
3315 } else {
3316 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFFRAGMENTATIONTHRESHOLD,
3317 &val);
3318 if (err)
3319 val = 0;
3320
3321 frq->value = val;
3322 frq->disabled = (val >= 2346);
3323 frq->fixed = 1;
3324 }
3325
3326 orinoco_unlock(priv, &flags);
3327
3328 return err;
3329 }
3330
3331 static int orinoco_ioctl_setrate(struct net_device *dev,
3332 struct iw_request_info *info,
3333 struct iw_param *rrq,
3334 char *extra)
3335 {
3336 struct orinoco_private *priv = netdev_priv(dev);
3337 int ratemode = -1;
3338 int bitrate; /* 100s of kilobits */
3339 int i;
3340 unsigned long flags;
3341
3342 /* As the user space doesn't know our highest rate, it uses -1
3343 * to ask us to set the highest rate. Test it using "iwconfig
3344 * ethX rate auto" - Jean II */
3345 if (rrq->value == -1)
3346 bitrate = 110;
3347 else {
3348 if (rrq->value % 100000)
3349 return -EINVAL;
3350 bitrate = rrq->value / 100000;
3351 }
3352
3353 if ( (bitrate != 10) && (bitrate != 20) &&
3354 (bitrate != 55) && (bitrate != 110) )
3355 return -EINVAL;
3356
3357 for (i = 0; i < BITRATE_TABLE_SIZE; i++)
3358 if ( (bitrate_table[i].bitrate == bitrate) &&
3359 (bitrate_table[i].automatic == ! rrq->fixed) ) {
3360 ratemode = i;
3361 break;
3362 }
3363
3364 if (ratemode == -1)
3365 return -EINVAL;
3366
3367 if (orinoco_lock(priv, &flags) != 0)
3368 return -EBUSY;
3369 priv->bitratemode = ratemode;
3370 orinoco_unlock(priv, &flags);
3371
3372 return -EINPROGRESS;
3373 }
3374
3375 static int orinoco_ioctl_getrate(struct net_device *dev,
3376 struct iw_request_info *info,
3377 struct iw_param *rrq,
3378 char *extra)
3379 {
3380 struct orinoco_private *priv = netdev_priv(dev);
3381 hermes_t *hw = &priv->hw;
3382 int err = 0;
3383 int ratemode;
3384 int i;
3385 u16 val;
3386 unsigned long flags;
3387
3388 if (orinoco_lock(priv, &flags) != 0)
3389 return -EBUSY;
3390
3391 ratemode = priv->bitratemode;
3392
3393 BUG_ON((ratemode < 0) || (ratemode >= BITRATE_TABLE_SIZE));
3394
3395 rrq->value = bitrate_table[ratemode].bitrate * 100000;
3396 rrq->fixed = ! bitrate_table[ratemode].automatic;
3397 rrq->disabled = 0;
3398
3399 /* If the interface is running we try to find more about the
3400 current mode */
3401 if (netif_running(dev)) {
3402 err = hermes_read_wordrec(hw, USER_BAP,
3403 HERMES_RID_CURRENTTXRATE, &val);
3404 if (err)
3405 goto out;
3406
3407 switch (priv->firmware_type) {
3408 case FIRMWARE_TYPE_AGERE: /* Lucent style rate */
3409 /* Note : in Lucent firmware, the return value of
3410 * HERMES_RID_CURRENTTXRATE is the bitrate in Mb/s,
3411 * and therefore is totally different from the
3412 * encoding of HERMES_RID_CNFTXRATECONTROL.
3413 * Don't forget that 6Mb/s is really 5.5Mb/s */
3414 if (val == 6)
3415 rrq->value = 5500000;
3416 else
3417 rrq->value = val * 1000000;
3418 break;
3419 case FIRMWARE_TYPE_INTERSIL: /* Intersil style rate */
3420 case FIRMWARE_TYPE_SYMBOL: /* Symbol style rate */
3421 for (i = 0; i < BITRATE_TABLE_SIZE; i++)
3422 if (bitrate_table[i].intersil_txratectrl == val) {
3423 ratemode = i;
3424 break;
3425 }
3426 if (i >= BITRATE_TABLE_SIZE)
3427 printk(KERN_INFO "%s: Unable to determine current bitrate (0x%04hx)\n",
3428 dev->name, val);
3429
3430 rrq->value = bitrate_table[ratemode].bitrate * 100000;
3431 break;
3432 default:
3433 BUG();
3434 }
3435 }
3436
3437 out:
3438 orinoco_unlock(priv, &flags);
3439
3440 return err;
3441 }
3442
3443 static int orinoco_ioctl_setpower(struct net_device *dev,
3444 struct iw_request_info *info,
3445 struct iw_param *prq,
3446 char *extra)
3447 {
3448 struct orinoco_private *priv = netdev_priv(dev);
3449 int err = -EINPROGRESS; /* Call commit handler */
3450 unsigned long flags;
3451
3452 if (orinoco_lock(priv, &flags) != 0)
3453 return -EBUSY;
3454
3455 if (prq->disabled) {
3456 priv->pm_on = 0;
3457 } else {
3458 switch (prq->flags & IW_POWER_MODE) {
3459 case IW_POWER_UNICAST_R:
3460 priv->pm_mcast = 0;
3461 priv->pm_on = 1;
3462 break;
3463 case IW_POWER_ALL_R:
3464 priv->pm_mcast = 1;
3465 priv->pm_on = 1;
3466 break;
3467 case IW_POWER_ON:
3468 /* No flags : but we may have a value - Jean II */
3469 break;
3470 default:
3471 err = -EINVAL;
3472 goto out;
3473 }
3474
3475 if (prq->flags & IW_POWER_TIMEOUT) {
3476 priv->pm_on = 1;
3477 priv->pm_timeout = prq->value / 1000;
3478 }
3479 if (prq->flags & IW_POWER_PERIOD) {
3480 priv->pm_on = 1;
3481 priv->pm_period = prq->value / 1000;
3482 }
3483 /* It's valid to not have a value if we are just toggling
3484 * the flags... Jean II */
3485 if(!priv->pm_on) {
3486 err = -EINVAL;
3487 goto out;
3488 }
3489 }
3490
3491 out:
3492 orinoco_unlock(priv, &flags);
3493
3494 return err;
3495 }
3496
3497 static int orinoco_ioctl_getpower(struct net_device *dev,
3498 struct iw_request_info *info,
3499 struct iw_param *prq,
3500 char *extra)
3501 {
3502 struct orinoco_private *priv = netdev_priv(dev);
3503 hermes_t *hw = &priv->hw;
3504 int err = 0;
3505 u16 enable, period, timeout, mcast;
3506 unsigned long flags;
3507
3508 if (orinoco_lock(priv, &flags) != 0)
3509 return -EBUSY;
3510
3511 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFPMENABLED, &enable);
3512 if (err)
3513 goto out;
3514
3515 err = hermes_read_wordrec(hw, USER_BAP,
3516 HERMES_RID_CNFMAXSLEEPDURATION, &period);
3517 if (err)
3518 goto out;
3519
3520 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFPMHOLDOVERDURATION, &timeout);
3521 if (err)
3522 goto out;
3523
3524 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFMULTICASTRECEIVE, &mcast);
3525 if (err)
3526 goto out;
3527
3528 prq->disabled = !enable;
3529 /* Note : by default, display the period */
3530 if ((prq->flags & IW_POWER_TYPE) == IW_POWER_TIMEOUT) {
3531 prq->flags = IW_POWER_TIMEOUT;
3532 prq->value = timeout * 1000;
3533 } else {
3534 prq->flags = IW_POWER_PERIOD;
3535 prq->value = period * 1000;
3536 }
3537 if (mcast)
3538 prq->flags |= IW_POWER_ALL_R;
3539 else
3540 prq->flags |= IW_POWER_UNICAST_R;
3541
3542 out:
3543 orinoco_unlock(priv, &flags);
3544
3545 return err;
3546 }
3547
3548 static int orinoco_ioctl_getretry(struct net_device *dev,
3549 struct iw_request_info *info,
3550 struct iw_param *rrq,
3551 char *extra)
3552 {
3553 struct orinoco_private *priv = netdev_priv(dev);
3554 hermes_t *hw = &priv->hw;
3555 int err = 0;
3556 u16 short_limit, long_limit, lifetime;
3557 unsigned long flags;
3558
3559 if (orinoco_lock(priv, &flags) != 0)
3560 return -EBUSY;
3561
3562 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_SHORTRETRYLIMIT,
3563 &short_limit);
3564 if (err)
3565 goto out;
3566
3567 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_LONGRETRYLIMIT,
3568 &long_limit);
3569 if (err)
3570 goto out;
3571
3572 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_MAXTRANSMITLIFETIME,
3573 &lifetime);
3574 if (err)
3575 goto out;
3576
3577 rrq->disabled = 0; /* Can't be disabled */
3578
3579 /* Note : by default, display the retry number */
3580 if ((rrq->flags & IW_RETRY_TYPE) == IW_RETRY_LIFETIME) {
3581 rrq->flags = IW_RETRY_LIFETIME;
3582 rrq->value = lifetime * 1000; /* ??? */
3583 } else {
3584 /* By default, display the min number */
3585 if ((rrq->flags & IW_RETRY_LONG)) {
3586 rrq->flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
3587 rrq->value = long_limit;
3588 } else {
3589 rrq->flags = IW_RETRY_LIMIT;
3590 rrq->value = short_limit;
3591 if(short_limit != long_limit)
3592 rrq->flags |= IW_RETRY_SHORT;
3593 }
3594 }
3595
3596 out:
3597 orinoco_unlock(priv, &flags);
3598
3599 return err;
3600 }
3601
3602 static int orinoco_ioctl_reset(struct net_device *dev,
3603 struct iw_request_info *info,
3604 void *wrqu,
3605 char *extra)
3606 {
3607 struct orinoco_private *priv = netdev_priv(dev);
3608
3609 if (! capable(CAP_NET_ADMIN))
3610 return -EPERM;
3611
3612 if (info->cmd == (SIOCIWFIRSTPRIV + 0x1)) {
3613 printk(KERN_DEBUG "%s: Forcing reset!\n", dev->name);
3614
3615 /* Firmware reset */
3616 orinoco_reset(&priv->reset_work);
3617 } else {
3618 printk(KERN_DEBUG "%s: Force scheduling reset!\n", dev->name);
3619
3620 schedule_work(&priv->reset_work);
3621 }
3622
3623 return 0;
3624 }
3625
3626 static int orinoco_ioctl_setibssport(struct net_device *dev,
3627 struct iw_request_info *info,
3628 void *wrqu,
3629 char *extra)
3630
3631 {
3632 struct orinoco_private *priv = netdev_priv(dev);
3633 int val = *( (int *) extra );
3634 unsigned long flags;
3635
3636 if (orinoco_lock(priv, &flags) != 0)
3637 return -EBUSY;
3638
3639 priv->ibss_port = val ;
3640
3641 /* Actually update the mode we are using */
3642 set_port_type(priv);
3643
3644 orinoco_unlock(priv, &flags);
3645 return -EINPROGRESS; /* Call commit handler */
3646 }
3647
3648 static int orinoco_ioctl_getibssport(struct net_device *dev,
3649 struct iw_request_info *info,
3650 void *wrqu,
3651 char *extra)
3652 {
3653 struct orinoco_private *priv = netdev_priv(dev);
3654 int *val = (int *) extra;
3655
3656 *val = priv->ibss_port;
3657 return 0;
3658 }
3659
3660 static int orinoco_ioctl_setport3(struct net_device *dev,
3661 struct iw_request_info *info,
3662 void *wrqu,
3663 char *extra)
3664 {
3665 struct orinoco_private *priv = netdev_priv(dev);
3666 int val = *( (int *) extra );
3667 int err = 0;
3668 unsigned long flags;
3669
3670 if (orinoco_lock(priv, &flags) != 0)
3671 return -EBUSY;
3672
3673 switch (val) {
3674 case 0: /* Try to do IEEE ad-hoc mode */
3675 if (! priv->has_ibss) {
3676 err = -EINVAL;
3677 break;
3678 }
3679 priv->prefer_port3 = 0;
3680
3681 break;
3682
3683 case 1: /* Try to do Lucent proprietary ad-hoc mode */
3684 if (! priv->has_port3) {
3685 err = -EINVAL;
3686 break;
3687 }
3688 priv->prefer_port3 = 1;
3689 break;
3690
3691 default:
3692 err = -EINVAL;
3693 }
3694
3695 if (! err) {
3696 /* Actually update the mode we are using */
3697 set_port_type(priv);
3698 err = -EINPROGRESS;
3699 }
3700
3701 orinoco_unlock(priv, &flags);
3702
3703 return err;
3704 }
3705
3706 static int orinoco_ioctl_getport3(struct net_device *dev,
3707 struct iw_request_info *info,
3708 void *wrqu,
3709 char *extra)
3710 {
3711 struct orinoco_private *priv = netdev_priv(dev);
3712 int *val = (int *) extra;
3713
3714 *val = priv->prefer_port3;
3715 return 0;
3716 }
3717
3718 static int orinoco_ioctl_setpreamble(struct net_device *dev,
3719 struct iw_request_info *info,
3720 void *wrqu,
3721 char *extra)
3722 {
3723 struct orinoco_private *priv = netdev_priv(dev);
3724 unsigned long flags;
3725 int val;
3726
3727 if (! priv->has_preamble)
3728 return -EOPNOTSUPP;
3729
3730 /* 802.11b has recently defined some short preamble.
3731 * Basically, the Phy header has been reduced in size.
3732 * This increase performance, especially at high rates
3733 * (the preamble is transmitted at 1Mb/s), unfortunately
3734 * this give compatibility troubles... - Jean II */
3735 val = *( (int *) extra );
3736
3737 if (orinoco_lock(priv, &flags) != 0)
3738 return -EBUSY;
3739
3740 if (val)
3741 priv->preamble = 1;
3742 else
3743 priv->preamble = 0;
3744
3745 orinoco_unlock(priv, &flags);
3746
3747 return -EINPROGRESS; /* Call commit handler */
3748 }
3749
3750 static int orinoco_ioctl_getpreamble(struct net_device *dev,
3751 struct iw_request_info *info,
3752 void *wrqu,
3753 char *extra)
3754 {
3755 struct orinoco_private *priv = netdev_priv(dev);
3756 int *val = (int *) extra;
3757
3758 if (! priv->has_preamble)
3759 return -EOPNOTSUPP;
3760
3761 *val = priv->preamble;
3762 return 0;
3763 }
3764
3765 /* ioctl interface to hermes_read_ltv()
3766 * To use with iwpriv, pass the RID as the token argument, e.g.
3767 * iwpriv get_rid [0xfc00]
3768 * At least Wireless Tools 25 is required to use iwpriv.
3769 * For Wireless Tools 25 and 26 append "dummy" are the end. */
3770 static int orinoco_ioctl_getrid(struct net_device *dev,
3771 struct iw_request_info *info,
3772 struct iw_point *data,
3773 char *extra)
3774 {
3775 struct orinoco_private *priv = netdev_priv(dev);
3776 hermes_t *hw = &priv->hw;
3777 int rid = data->flags;
3778 u16 length;
3779 int err;
3780 unsigned long flags;
3781
3782 /* It's a "get" function, but we don't want users to access the
3783 * WEP key and other raw firmware data */
3784 if (! capable(CAP_NET_ADMIN))
3785 return -EPERM;
3786
3787 if (rid < 0xfc00 || rid > 0xffff)
3788 return -EINVAL;
3789
3790 if (orinoco_lock(priv, &flags) != 0)
3791 return -EBUSY;
3792
3793 err = hermes_read_ltv(hw, USER_BAP, rid, MAX_RID_LEN, &length,
3794 extra);
3795 if (err)
3796 goto out;
3797
3798 data->length = min_t(u16, HERMES_RECLEN_TO_BYTES(length),
3799 MAX_RID_LEN);
3800
3801 out:
3802 orinoco_unlock(priv, &flags);
3803 return err;
3804 }
3805
3806 /* Trigger a scan (look for other cells in the vicinity */
3807 static int orinoco_ioctl_setscan(struct net_device *dev,
3808 struct iw_request_info *info,
3809 struct iw_param *srq,
3810 char *extra)
3811 {
3812 struct orinoco_private *priv = netdev_priv(dev);
3813 hermes_t *hw = &priv->hw;
3814 int err = 0;
3815 unsigned long flags;
3816
3817 /* Note : you may have realised that, as this is a SET operation,
3818 * this is privileged and therefore a normal user can't
3819 * perform scanning.
3820 * This is not an error, while the device perform scanning,
3821 * traffic doesn't flow, so it's a perfect DoS...
3822 * Jean II */
3823
3824 if (orinoco_lock(priv, &flags) != 0)
3825 return -EBUSY;
3826
3827 /* Scanning with port 0 disabled would fail */
3828 if (!netif_running(dev)) {
3829 err = -ENETDOWN;
3830 goto out;
3831 }
3832
3833 /* In monitor mode, the scan results are always empty.
3834 * Probe responses are passed to the driver as received
3835 * frames and could be processed in software. */
3836 if (priv->iw_mode == IW_MODE_MONITOR) {
3837 err = -EOPNOTSUPP;
3838 goto out;
3839 }
3840
3841 /* Note : because we don't lock out the irq handler, the way
3842 * we access scan variables in priv is critical.
3843 * o scan_inprogress : not touched by irq handler
3844 * o scan_mode : not touched by irq handler
3845 * o scan_result : irq is strict producer, non-irq is strict
3846 * consumer.
3847 * o scan_len : synchronised with scan_result
3848 * Before modifying anything on those variables, please think hard !
3849 * Jean II */
3850
3851 /* If there is still some left-over scan results, get rid of it */
3852 if (priv->scan_result != NULL) {
3853 /* What's likely is that a client did crash or was killed
3854 * between triggering the scan request and reading the
3855 * results, so we need to reset everything.
3856 * Some clients that are too slow may suffer from that...
3857 * Jean II */
3858 kfree(priv->scan_result);
3859 priv->scan_result = NULL;
3860 }
3861
3862 /* Save flags */
3863 priv->scan_mode = srq->flags;
3864
3865 /* Always trigger scanning, even if it's in progress.
3866 * This way, if the info frame get lost, we will recover somewhat
3867 * gracefully - Jean II */
3868
3869 if (priv->has_hostscan) {
3870 switch (priv->firmware_type) {
3871 case FIRMWARE_TYPE_SYMBOL:
3872 err = hermes_write_wordrec(hw, USER_BAP,
3873 HERMES_RID_CNFHOSTSCAN_SYMBOL,
3874 HERMES_HOSTSCAN_SYMBOL_ONCE |
3875 HERMES_HOSTSCAN_SYMBOL_BCAST);
3876 break;
3877 case FIRMWARE_TYPE_INTERSIL: {
3878 __le16 req[3];
3879
3880 req[0] = cpu_to_le16(0x3fff); /* All channels */
3881 req[1] = cpu_to_le16(0x0001); /* rate 1 Mbps */
3882 req[2] = 0; /* Any ESSID */
3883 err = HERMES_WRITE_RECORD(hw, USER_BAP,
3884 HERMES_RID_CNFHOSTSCAN, &req);
3885 }
3886 break;
3887 case FIRMWARE_TYPE_AGERE:
3888 err = hermes_write_wordrec(hw, USER_BAP,
3889 HERMES_RID_CNFSCANSSID_AGERE,
3890 0); /* Any ESSID */
3891 if (err)
3892 break;
3893
3894 err = hermes_inquire(hw, HERMES_INQ_SCAN);
3895 break;
3896 }
3897 } else
3898 err = hermes_inquire(hw, HERMES_INQ_SCAN);
3899
3900 /* One more client */
3901 if (! err)
3902 priv->scan_inprogress = 1;
3903
3904 out:
3905 orinoco_unlock(priv, &flags);
3906 return err;
3907 }
3908
3909 /* Translate scan data returned from the card to a card independant
3910 * format that the Wireless Tools will understand - Jean II
3911 * Return message length or -errno for fatal errors */
3912 static inline int orinoco_translate_scan(struct net_device *dev,
3913 char *buffer,
3914 char *scan,
3915 int scan_len)
3916 {
3917 struct orinoco_private *priv = netdev_priv(dev);
3918 int offset; /* In the scan data */
3919 union hermes_scan_info *atom;
3920 int atom_len;
3921 u16 capabilities;
3922 u16 channel;
3923 struct iw_event iwe; /* Temporary buffer */
3924 char * current_ev = buffer;
3925 char * end_buf = buffer + IW_SCAN_MAX_DATA;
3926
3927 switch (priv->firmware_type) {
3928 case FIRMWARE_TYPE_AGERE:
3929 atom_len = sizeof(struct agere_scan_apinfo);
3930 offset = 0;
3931 break;
3932 case FIRMWARE_TYPE_SYMBOL:
3933 /* Lack of documentation necessitates this hack.
3934 * Different firmwares have 68 or 76 byte long atoms.
3935 * We try modulo first. If the length divides by both,
3936 * we check what would be the channel in the second
3937 * frame for a 68-byte atom. 76-byte atoms have 0 there.
3938 * Valid channel cannot be 0. */
3939 if (scan_len % 76)
3940 atom_len = 68;
3941 else if (scan_len % 68)
3942 atom_len = 76;
3943 else if (scan_len >= 1292 && scan[68] == 0)
3944 atom_len = 76;
3945 else
3946 atom_len = 68;
3947 offset = 0;
3948 break;
3949 case FIRMWARE_TYPE_INTERSIL:
3950 offset = 4;
3951 if (priv->has_hostscan) {
3952 atom_len = le16_to_cpup((__le16 *)scan);
3953 /* Sanity check for atom_len */
3954 if (atom_len < sizeof(struct prism2_scan_apinfo)) {
3955 printk(KERN_ERR "%s: Invalid atom_len in scan data: %d\n",
3956 dev->name, atom_len);
3957 return -EIO;
3958 }
3959 } else
3960 atom_len = offsetof(struct prism2_scan_apinfo, atim);
3961 break;
3962 default:
3963 return -EOPNOTSUPP;
3964 }
3965
3966 /* Check that we got an whole number of atoms */
3967 if ((scan_len - offset) % atom_len) {
3968 printk(KERN_ERR "%s: Unexpected scan data length %d, "
3969 "atom_len %d, offset %d\n", dev->name, scan_len,
3970 atom_len, offset);
3971 return -EIO;
3972 }
3973
3974 /* Read the entries one by one */
3975 for (; offset + atom_len <= scan_len; offset += atom_len) {
3976 /* Get next atom */
3977 atom = (union hermes_scan_info *) (scan + offset);
3978
3979 /* First entry *MUST* be the AP MAC address */
3980 iwe.cmd = SIOCGIWAP;
3981 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
3982 memcpy(iwe.u.ap_addr.sa_data, atom->a.bssid, ETH_ALEN);
3983 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_ADDR_LEN);
3984
3985 /* Other entries will be displayed in the order we give them */
3986
3987 /* Add the ESSID */
3988 iwe.u.data.length = le16_to_cpu(atom->a.essid_len);
3989 if (iwe.u.data.length > 32)
3990 iwe.u.data.length = 32;
3991 iwe.cmd = SIOCGIWESSID;
3992 iwe.u.data.flags = 1;
3993 current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe, atom->a.essid);
3994
3995 /* Add mode */
3996 iwe.cmd = SIOCGIWMODE;
3997 capabilities = le16_to_cpu(atom->a.capabilities);
3998 if (capabilities & 0x3) {
3999 if (capabilities & 0x1)
4000 iwe.u.mode = IW_MODE_MASTER;
4001 else
4002 iwe.u.mode = IW_MODE_ADHOC;
4003 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_UINT_LEN);
4004 }
4005
4006 channel = atom->s.channel;
4007 if ( (channel >= 1) && (channel <= NUM_CHANNELS) ) {
4008 /* Add frequency */
4009 iwe.cmd = SIOCGIWFREQ;
4010 iwe.u.freq.m = channel_frequency[channel-1] * 100000;
4011 iwe.u.freq.e = 1;
4012 current_ev = iwe_stream_add_event(current_ev, end_buf,
4013 &iwe, IW_EV_FREQ_LEN);
4014 }
4015
4016 /* Add quality statistics */
4017 iwe.cmd = IWEVQUAL;
4018 iwe.u.qual.updated = 0x10; /* no link quality */
4019 iwe.u.qual.level = (__u8) le16_to_cpu(atom->a.level) - 0x95;
4020 iwe.u.qual.noise = (__u8) le16_to_cpu(atom->a.noise) - 0x95;
4021 /* Wireless tools prior to 27.pre22 will show link quality
4022 * anyway, so we provide a reasonable value. */
4023 if (iwe.u.qual.level > iwe.u.qual.noise)
4024 iwe.u.qual.qual = iwe.u.qual.level - iwe.u.qual.noise;
4025 else
4026 iwe.u.qual.qual = 0;
4027 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_QUAL_LEN);
4028
4029 /* Add encryption capability */
4030 iwe.cmd = SIOCGIWENCODE;
4031 if (capabilities & 0x10)
4032 iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
4033 else
4034 iwe.u.data.flags = IW_ENCODE_DISABLED;
4035 iwe.u.data.length = 0;
4036 current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe, atom->a.essid);
4037
4038 /* Bit rate is not available in Lucent/Agere firmwares */
4039 if (priv->firmware_type != FIRMWARE_TYPE_AGERE) {
4040 char * current_val = current_ev + IW_EV_LCP_LEN;
4041 int i;
4042 int step;
4043
4044 if (priv->firmware_type == FIRMWARE_TYPE_SYMBOL)
4045 step = 2;
4046 else
4047 step = 1;
4048
4049 iwe.cmd = SIOCGIWRATE;
4050 /* Those two flags are ignored... */
4051 iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
4052 /* Max 10 values */
4053 for (i = 0; i < 10; i += step) {
4054 /* NULL terminated */
4055 if (atom->p.rates[i] == 0x0)
4056 break;
4057 /* Bit rate given in 500 kb/s units (+ 0x80) */
4058 iwe.u.bitrate.value = ((atom->p.rates[i] & 0x7f) * 500000);
4059 current_val = iwe_stream_add_value(current_ev, current_val,
4060 end_buf, &iwe,
4061 IW_EV_PARAM_LEN);
4062 }
4063 /* Check if we added any event */
4064 if ((current_val - current_ev) > IW_EV_LCP_LEN)
4065 current_ev = current_val;
4066 }
4067
4068 /* The other data in the scan result are not really
4069 * interesting, so for now drop it - Jean II */
4070 }
4071 return current_ev - buffer;
4072 }
4073
4074 /* Return results of a scan */
4075 static int orinoco_ioctl_getscan(struct net_device *dev,
4076 struct iw_request_info *info,
4077 struct iw_point *srq,
4078 char *extra)
4079 {
4080 struct orinoco_private *priv = netdev_priv(dev);
4081 int err = 0;
4082 unsigned long flags;
4083
4084 if (orinoco_lock(priv, &flags) != 0)
4085 return -EBUSY;
4086
4087 /* If no results yet, ask to try again later */
4088 if (priv->scan_result == NULL) {
4089 if (priv->scan_inprogress)
4090 /* Important note : we don't want to block the caller
4091 * until results are ready for various reasons.
4092 * First, managing wait queues is complex and racy.
4093 * Second, we grab some rtnetlink lock before comming
4094 * here (in dev_ioctl()).
4095 * Third, we generate an Wireless Event, so the
4096 * caller can wait itself on that - Jean II */
4097 err = -EAGAIN;
4098 else
4099 /* Client error, no scan results...
4100 * The caller need to restart the scan. */
4101 err = -ENODATA;
4102 } else {
4103 /* We have some results to push back to user space */
4104
4105 /* Translate to WE format */
4106 int ret = orinoco_translate_scan(dev, extra,
4107 priv->scan_result,
4108 priv->scan_len);
4109
4110 if (ret < 0) {
4111 err = ret;
4112 kfree(priv->scan_result);
4113 priv->scan_result = NULL;
4114 } else {
4115 srq->length = ret;
4116
4117 /* Return flags */
4118 srq->flags = (__u16) priv->scan_mode;
4119
4120 /* In any case, Scan results will be cleaned up in the
4121 * reset function and when exiting the driver.
4122 * The person triggering the scanning may never come to
4123 * pick the results, so we need to do it in those places.
4124 * Jean II */
4125
4126 #ifdef SCAN_SINGLE_READ
4127 /* If you enable this option, only one client (the first
4128 * one) will be able to read the result (and only one
4129 * time). If there is multiple concurent clients that
4130 * want to read scan results, this behavior is not
4131 * advisable - Jean II */
4132 kfree(priv->scan_result);
4133 priv->scan_result = NULL;
4134 #endif /* SCAN_SINGLE_READ */
4135 /* Here, if too much time has elapsed since last scan,
4136 * we may want to clean up scan results... - Jean II */
4137 }
4138
4139 /* Scan is no longer in progress */
4140 priv->scan_inprogress = 0;
4141 }
4142
4143 orinoco_unlock(priv, &flags);
4144 return err;
4145 }
4146
4147 /* Commit handler, called after set operations */
4148 static int orinoco_ioctl_commit(struct net_device *dev,
4149 struct iw_request_info *info,
4150 void *wrqu,
4151 char *extra)
4152 {
4153 struct orinoco_private *priv = netdev_priv(dev);
4154 struct hermes *hw = &priv->hw;
4155 unsigned long flags;
4156 int err = 0;
4157
4158 if (!priv->open)
4159 return 0;
4160
4161 if (priv->broken_disableport) {
4162 orinoco_reset(&priv->reset_work);
4163 return 0;
4164 }
4165
4166 if (orinoco_lock(priv, &flags) != 0)
4167 return err;
4168
4169 err = hermes_disable_port(hw, 0);
4170 if (err) {
4171 printk(KERN_WARNING "%s: Unable to disable port "
4172 "while reconfiguring card\n", dev->name);
4173 priv->broken_disableport = 1;
4174 goto out;
4175 }
4176
4177 err = __orinoco_program_rids(dev);
4178 if (err) {
4179 printk(KERN_WARNING "%s: Unable to reconfigure card\n",
4180 dev->name);
4181 goto out;
4182 }
4183
4184 err = hermes_enable_port(hw, 0);
4185 if (err) {
4186 printk(KERN_WARNING "%s: Unable to enable port while reconfiguring card\n",
4187 dev->name);
4188 goto out;
4189 }
4190
4191 out:
4192 if (err) {
4193 printk(KERN_WARNING "%s: Resetting instead...\n", dev->name);
4194 schedule_work(&priv->reset_work);
4195 err = 0;
4196 }
4197
4198 orinoco_unlock(priv, &flags);
4199 return err;
4200 }
4201
4202 static const struct iw_priv_args orinoco_privtab[] = {
4203 { SIOCIWFIRSTPRIV + 0x0, 0, 0, "force_reset" },
4204 { SIOCIWFIRSTPRIV + 0x1, 0, 0, "card_reset" },
4205 { SIOCIWFIRSTPRIV + 0x2, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
4206 0, "set_port3" },
4207 { SIOCIWFIRSTPRIV + 0x3, 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
4208 "get_port3" },
4209 { SIOCIWFIRSTPRIV + 0x4, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
4210 0, "set_preamble" },
4211 { SIOCIWFIRSTPRIV + 0x5, 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
4212 "get_preamble" },
4213 { SIOCIWFIRSTPRIV + 0x6, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
4214 0, "set_ibssport" },
4215 { SIOCIWFIRSTPRIV + 0x7, 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
4216 "get_ibssport" },
4217 { SIOCIWFIRSTPRIV + 0x9, 0, IW_PRIV_TYPE_BYTE | MAX_RID_LEN,
4218 "get_rid" },
4219 };
4220
4221
4222 /*
4223 * Structures to export the Wireless Handlers
4224 */
4225
4226 static const iw_handler orinoco_handler[] = {
4227 [SIOCSIWCOMMIT-SIOCIWFIRST] = (iw_handler) orinoco_ioctl_commit,
4228 [SIOCGIWNAME -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getname,
4229 [SIOCSIWFREQ -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setfreq,
4230 [SIOCGIWFREQ -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getfreq,
4231 [SIOCSIWMODE -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setmode,
4232 [SIOCGIWMODE -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getmode,
4233 [SIOCSIWSENS -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setsens,
4234 [SIOCGIWSENS -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getsens,
4235 [SIOCGIWRANGE -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getiwrange,
4236 [SIOCSIWSPY -SIOCIWFIRST] = (iw_handler) iw_handler_set_spy,
4237 [SIOCGIWSPY -SIOCIWFIRST] = (iw_handler) iw_handler_get_spy,
4238 [SIOCSIWTHRSPY-SIOCIWFIRST] = (iw_handler) iw_handler_set_thrspy,
4239 [SIOCGIWTHRSPY-SIOCIWFIRST] = (iw_handler) iw_handler_get_thrspy,
4240 [SIOCSIWAP -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setwap,
4241 [SIOCGIWAP -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getwap,
4242 [SIOCSIWSCAN -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setscan,
4243 [SIOCGIWSCAN -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getscan,
4244 [SIOCSIWESSID -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setessid,
4245 [SIOCGIWESSID -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getessid,
4246 [SIOCSIWNICKN -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setnick,
4247 [SIOCGIWNICKN -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getnick,
4248 [SIOCSIWRATE -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setrate,
4249 [SIOCGIWRATE -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getrate,
4250 [SIOCSIWRTS -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setrts,
4251 [SIOCGIWRTS -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getrts,
4252 [SIOCSIWFRAG -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setfrag,
4253 [SIOCGIWFRAG -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getfrag,
4254 [SIOCGIWRETRY -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getretry,
4255 [SIOCSIWENCODE-SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setiwencode,
4256 [SIOCGIWENCODE-SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getiwencode,
4257 [SIOCSIWPOWER -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_setpower,
4258 [SIOCGIWPOWER -SIOCIWFIRST] = (iw_handler) orinoco_ioctl_getpower,
4259 };
4260
4261
4262 /*
4263 Added typecasting since we no longer use iwreq_data -- Moustafa
4264 */
4265 static const iw_handler orinoco_private_handler[] = {
4266 [0] = (iw_handler) orinoco_ioctl_reset,
4267 [1] = (iw_handler) orinoco_ioctl_reset,
4268 [2] = (iw_handler) orinoco_ioctl_setport3,
4269 [3] = (iw_handler) orinoco_ioctl_getport3,
4270 [4] = (iw_handler) orinoco_ioctl_setpreamble,
4271 [5] = (iw_handler) orinoco_ioctl_getpreamble,
4272 [6] = (iw_handler) orinoco_ioctl_setibssport,
4273 [7] = (iw_handler) orinoco_ioctl_getibssport,
4274 [9] = (iw_handler) orinoco_ioctl_getrid,
4275 };
4276
4277 static const struct iw_handler_def orinoco_handler_def = {
4278 .num_standard = ARRAY_SIZE(orinoco_handler),
4279 .num_private = ARRAY_SIZE(orinoco_private_handler),
4280 .num_private_args = ARRAY_SIZE(orinoco_privtab),
4281 .standard = orinoco_handler,
4282 .private = orinoco_private_handler,
4283 .private_args = orinoco_privtab,
4284 .get_wireless_stats = orinoco_get_wireless_stats,
4285 };
4286
4287 static void orinoco_get_drvinfo(struct net_device *dev,
4288 struct ethtool_drvinfo *info)
4289 {
4290 struct orinoco_private *priv = netdev_priv(dev);
4291
4292 strncpy(info->driver, DRIVER_NAME, sizeof(info->driver) - 1);
4293 strncpy(info->version, DRIVER_VERSION, sizeof(info->version) - 1);
4294 strncpy(info->fw_version, priv->fw_name, sizeof(info->fw_version) - 1);
4295 if (dev->dev.parent)
4296 strncpy(info->bus_info, dev->dev.parent->bus_id,
4297 sizeof(info->bus_info) - 1);
4298 else
4299 snprintf(info->bus_info, sizeof(info->bus_info) - 1,
4300 "PCMCIA %p", priv->hw.iobase);
4301 }
4302
4303 static const struct ethtool_ops orinoco_ethtool_ops = {
4304 .get_drvinfo = orinoco_get_drvinfo,
4305 .get_link = ethtool_op_get_link,
4306 };
4307
4308 /********************************************************************/
4309 /* Module initialization */
4310 /********************************************************************/
4311
4312 EXPORT_SYMBOL(alloc_orinocodev);
4313 EXPORT_SYMBOL(free_orinocodev);
4314
4315 EXPORT_SYMBOL(__orinoco_up);
4316 EXPORT_SYMBOL(__orinoco_down);
4317 EXPORT_SYMBOL(orinoco_reinit_firmware);
4318
4319 EXPORT_SYMBOL(orinoco_interrupt);
4320
4321 /* Can't be declared "const" or the whole __initdata section will
4322 * become const */
4323 static char version[] __initdata = DRIVER_NAME " " DRIVER_VERSION
4324 " (David Gibson <hermes@gibson.dropbear.id.au>, "
4325 "Pavel Roskin <proski@gnu.org>, et al)";
4326
4327 static int __init init_orinoco(void)
4328 {
4329 printk(KERN_DEBUG "%s\n", version);
4330 return 0;
4331 }
4332
4333 static void __exit exit_orinoco(void)
4334 {
4335 }
4336
4337 module_init(init_orinoco);
4338 module_exit(exit_orinoco);
Tomato firmware and modifications.