1 /* orinoco.c - (formerly known as dldwd_cs.c and orinoco_cs.c)
3 * A driver for Hermes or Prism 2 chipset based PCMCIA wireless
4 * adaptors, with Lucent/Agere, Intersil or Symbol firmware.
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>
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
16 * Based on dummy_cs.c 1.27 2000/06/12 21:27:25
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/
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/
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.
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
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. */
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.
59 /* Locking and synchronization:
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.
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).
77 #define DRIVER_NAME "orinoco"
79 #include <linux/config.h>
81 #include <linux/module.h>
82 #include <linux/kernel.h>
83 #include <linux/init.h>
84 #include <linux/ptrace.h>
85 #include <linux/slab.h>
86 #include <linux/string.h>
87 #include <linux/timer.h>
88 #include <linux/ioport.h>
89 #include <linux/netdevice.h>
90 #include <linux/if_arp.h>
91 #include <linux/etherdevice.h>
92 #include <linux/ethtool.h>
93 #include <linux/wireless.h>
94 #include <net/iw_handler.h>
95 #include <net/ieee80211.h>
97 #include <asm/uaccess.h>
99 #include <asm/system.h>
102 #include "hermes_rid.h"
104 #include "ieee802_11.h"
106 /********************************************************************/
107 /* Module information */
108 /********************************************************************/
110 MODULE_AUTHOR("Pavel Roskin <proski@gnu.org> & David Gibson <hermes@gibson.dropbear.id.au>");
111 MODULE_DESCRIPTION("Driver for Lucent Orinoco, Prism II based and similar wireless cards");
112 MODULE_LICENSE("Dual MPL/GPL");
114 /* Level of debugging. Used in the macros in orinoco.h */
116 int orinoco_debug = ORINOCO_DEBUG;
117 module_param(orinoco_debug, int, 0644);
118 MODULE_PARM_DESC(orinoco_debug, "Debug level");
119 EXPORT_SYMBOL(orinoco_debug);
122 static int suppress_linkstatus; /* = 0 */
123 module_param(suppress_linkstatus, bool, 0644);
124 MODULE_PARM_DESC(suppress_linkstatus, "Don't log link status changes");
125 static int ignore_disconnect; /* = 0 */
126 module_param(ignore_disconnect, int, 0644);
127 MODULE_PARM_DESC(ignore_disconnect, "Don't report lost link to the network layer");
129 static int force_monitor; /* = 0 */
130 module_param(force_monitor, int, 0644);
131 MODULE_PARM_DESC(force_monitor, "Allow monitor mode for all firmware versions");
133 /********************************************************************/
134 /* Compile time configuration and compatibility stuff */
135 /********************************************************************/
137 /* We do this this way to avoid ifdefs in the actual code */
139 #define SPY_NUMBER(priv) (priv->spy_number)
141 #define SPY_NUMBER(priv) 0
142 #endif /* WIRELESS_SPY */
144 /********************************************************************/
145 /* Internal constants */
146 /********************************************************************/
148 /* 802.2 LLC/SNAP header used for Ethernet encapsulation over 802.11 */
149 static const u8 encaps_hdr[] = {0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00};
150 #define ENCAPS_OVERHEAD (sizeof(encaps_hdr) + 2)
152 #define ORINOCO_MIN_MTU 256
153 #define ORINOCO_MAX_MTU (IEEE802_11_DATA_LEN - ENCAPS_OVERHEAD)
155 #define SYMBOL_MAX_VER_LEN (14)
158 #define MAX_IRQLOOPS_PER_IRQ 10
159 #define MAX_IRQLOOPS_PER_JIFFY (20000/HZ) /* Based on a guestimate of
160 * how many events the
162 * legitimately generate */
163 #define SMALL_KEY_SIZE 5
164 #define LARGE_KEY_SIZE 13
165 #define TX_NICBUF_SIZE_BUG 1585 /* Bug in Symbol firmware */
167 #define DUMMY_FID 0xFFFF
169 /*#define MAX_MULTICAST(priv) (priv->firmware_type == FIRMWARE_TYPE_AGERE ? \
170 HERMES_MAX_MULTICAST : 0)*/
171 #define MAX_MULTICAST(priv) (HERMES_MAX_MULTICAST)
173 #define ORINOCO_INTEN (HERMES_EV_RX | HERMES_EV_ALLOC \
174 | HERMES_EV_TX | HERMES_EV_TXEXC \
175 | HERMES_EV_WTERR | HERMES_EV_INFO \
176 | HERMES_EV_INFDROP )
178 #define MAX_RID_LEN 1024
180 static const struct iw_handler_def orinoco_handler_def;
181 static struct ethtool_ops orinoco_ethtool_ops;
183 /********************************************************************/
185 /********************************************************************/
187 /* The frequency of each channel in MHz */
188 static const long channel_frequency[] = {
189 2412, 2417, 2422, 2427, 2432, 2437, 2442,
190 2447, 2452, 2457, 2462, 2467, 2472, 2484
192 #define NUM_CHANNELS ARRAY_SIZE(channel_frequency)
194 /* This tables gives the actual meanings of the bitrate IDs returned
195 * by the firmware. */
197 int bitrate; /* in 100s of kilobits */
199 u16 agere_txratectrl;
200 u16 intersil_txratectrl;
201 } bitrate_table[] = {
202 {110, 1, 3, 15}, /* Entry 0 is the default */
211 #define BITRATE_TABLE_SIZE ARRAY_SIZE(bitrate_table)
213 /********************************************************************/
215 /********************************************************************/
217 /* Used in Event handling.
218 * We avoid nested structres as they break on ARM -- Moustafa */
219 struct hermes_tx_descriptor_802_11 {
220 /* hermes_tx_descriptor */
240 unsigned char h_dest[ETH_ALEN]; /* destination eth addr */
241 unsigned char h_source[ETH_ALEN]; /* source ether addr */
242 unsigned short h_proto; /* packet type ID field */
251 } __attribute__ ((packed));
253 /* Rx frame header except compatibility 802.3 header */
254 struct hermes_rx_descriptor {
275 } __attribute__ ((packed));
277 /********************************************************************/
278 /* Function prototypes */
279 /********************************************************************/
281 static int __orinoco_program_rids(struct net_device *dev);
282 static void __orinoco_set_multicast_list(struct net_device *dev);
284 /********************************************************************/
285 /* Internal helper functions */
286 /********************************************************************/
288 static inline void set_port_type(struct orinoco_private *priv)
290 switch (priv->iw_mode) {
293 priv->createibss = 0;
296 if (priv->prefer_port3) {
298 priv->createibss = 0;
300 priv->port_type = priv->ibss_port;
301 priv->createibss = 1;
304 case IW_MODE_MONITOR:
306 priv->createibss = 0;
309 printk(KERN_ERR "%s: Invalid priv->iw_mode in set_port_type()\n",
314 /********************************************************************/
316 /********************************************************************/
318 static int orinoco_open(struct net_device *dev)
320 struct orinoco_private *priv = netdev_priv(dev);
324 if (orinoco_lock(priv, &flags) != 0)
327 err = __orinoco_up(dev);
332 orinoco_unlock(priv, &flags);
337 static int orinoco_stop(struct net_device *dev)
339 struct orinoco_private *priv = netdev_priv(dev);
342 /* We mustn't use orinoco_lock() here, because we need to be
343 able to close the interface even if hw_unavailable is set
344 (e.g. as we're released after a PC Card removal) */
345 spin_lock_irq(&priv->lock);
349 err = __orinoco_down(dev);
351 spin_unlock_irq(&priv->lock);
356 static struct net_device_stats *orinoco_get_stats(struct net_device *dev)
358 struct orinoco_private *priv = netdev_priv(dev);
363 static struct iw_statistics *orinoco_get_wireless_stats(struct net_device *dev)
365 struct orinoco_private *priv = netdev_priv(dev);
366 hermes_t *hw = &priv->hw;
367 struct iw_statistics *wstats = &priv->wstats;
371 if (! netif_device_present(dev)) {
372 printk(KERN_WARNING "%s: get_wireless_stats() called while device not present\n",
374 return NULL; /* FIXME: Can we do better than this? */
377 /* If busy, return the old stats. Returning NULL may cause
378 * the interface to disappear from /proc/net/wireless */
379 if (orinoco_lock(priv, &flags) != 0)
382 /* We can't really wait for the tallies inquiry command to
383 * complete, so we just use the previous results and trigger
384 * a new tallies inquiry command for next time - Jean II */
385 /* FIXME: Really we should wait for the inquiry to come back -
386 * as it is the stats we give don't make a whole lot of sense.
387 * Unfortunately, it's not clear how to do that within the
388 * wireless extensions framework: I think we're in user
389 * context, but a lock seems to be held by the time we get in
390 * here so we're not safe to sleep here. */
391 hermes_inquire(hw, HERMES_INQ_TALLIES);
393 if (priv->iw_mode == IW_MODE_ADHOC) {
394 memset(&wstats->qual, 0, sizeof(wstats->qual));
395 /* If a spy address is defined, we report stats of the
396 * first spy address - Jean II */
397 if (SPY_NUMBER(priv)) {
398 wstats->qual.qual = priv->spy_stat[0].qual;
399 wstats->qual.level = priv->spy_stat[0].level;
400 wstats->qual.noise = priv->spy_stat[0].noise;
401 wstats->qual.updated = priv->spy_stat[0].updated;
405 u16 qual, signal, noise;
406 } __attribute__ ((packed)) cq;
408 err = HERMES_READ_RECORD(hw, USER_BAP,
409 HERMES_RID_COMMSQUALITY, &cq);
412 wstats->qual.qual = (int)le16_to_cpu(cq.qual);
413 wstats->qual.level = (int)le16_to_cpu(cq.signal) - 0x95;
414 wstats->qual.noise = (int)le16_to_cpu(cq.noise) - 0x95;
415 wstats->qual.updated = 7;
419 orinoco_unlock(priv, &flags);
423 static void orinoco_set_multicast_list(struct net_device *dev)
425 struct orinoco_private *priv = netdev_priv(dev);
428 if (orinoco_lock(priv, &flags) != 0) {
429 printk(KERN_DEBUG "%s: orinoco_set_multicast_list() "
430 "called when hw_unavailable\n", dev->name);
434 __orinoco_set_multicast_list(dev);
435 orinoco_unlock(priv, &flags);
438 static int orinoco_change_mtu(struct net_device *dev, int new_mtu)
440 struct orinoco_private *priv = netdev_priv(dev);
442 if ( (new_mtu < ORINOCO_MIN_MTU) || (new_mtu > ORINOCO_MAX_MTU) )
445 if ( (new_mtu + ENCAPS_OVERHEAD + IEEE802_11_HLEN) >
446 (priv->nicbuf_size - ETH_HLEN) )
454 /********************************************************************/
456 /********************************************************************/
458 static int orinoco_xmit(struct sk_buff *skb, struct net_device *dev)
460 struct orinoco_private *priv = netdev_priv(dev);
461 struct net_device_stats *stats = &priv->stats;
462 hermes_t *hw = &priv->hw;
464 u16 txfid = priv->txfid;
467 int len, data_len, data_off;
468 struct hermes_tx_descriptor desc;
471 TRACE_ENTER(dev->name);
473 if (! netif_running(dev)) {
474 printk(KERN_ERR "%s: Tx on stopped device!\n",
476 TRACE_EXIT(dev->name);
480 if (netif_queue_stopped(dev)) {
481 printk(KERN_DEBUG "%s: Tx while transmitter busy!\n",
483 TRACE_EXIT(dev->name);
487 if (orinoco_lock(priv, &flags) != 0) {
488 printk(KERN_ERR "%s: orinoco_xmit() called while hw_unavailable\n",
490 TRACE_EXIT(dev->name);
494 if (! netif_carrier_ok(dev) || (priv->iw_mode == IW_MODE_MONITOR)) {
495 /* Oops, the firmware hasn't established a connection,
496 silently drop the packet (this seems to be the
499 orinoco_unlock(priv, &flags);
501 TRACE_EXIT(dev->name);
505 /* Length of the packet body */
506 /* FIXME: what if the skb is smaller than this? */
507 len = max_t(int,skb->len - ETH_HLEN, ETH_ZLEN - ETH_HLEN);
509 eh = (struct ethhdr *)skb->data;
511 memset(&desc, 0, sizeof(desc));
512 desc.tx_control = cpu_to_le16(HERMES_TXCTRL_TX_OK | HERMES_TXCTRL_TX_EX);
513 err = hermes_bap_pwrite(hw, USER_BAP, &desc, sizeof(desc), txfid, 0);
516 printk(KERN_ERR "%s: Error %d writing Tx descriptor "
517 "to BAP\n", dev->name, err);
522 /* Clear the 802.11 header and data length fields - some
523 * firmwares (e.g. Lucent/Agere 8.xx) appear to get confused
524 * if this isn't done. */
525 hermes_clear_words(hw, HERMES_DATA0,
526 HERMES_802_3_OFFSET - HERMES_802_11_OFFSET);
528 /* Encapsulate Ethernet-II frames */
529 if (ntohs(eh->h_proto) > ETH_DATA_LEN) { /* Ethernet-II frame */
530 struct header_struct hdr;
532 data_off = HERMES_802_3_OFFSET + sizeof(hdr);
533 p = skb->data + ETH_HLEN;
536 memcpy(hdr.dest, eh->h_dest, ETH_ALEN);
537 memcpy(hdr.src, eh->h_source, ETH_ALEN);
538 hdr.len = htons(data_len + ENCAPS_OVERHEAD);
541 memcpy(&hdr.dsap, &encaps_hdr, sizeof(encaps_hdr));
543 hdr.ethertype = eh->h_proto;
544 err = hermes_bap_pwrite(hw, USER_BAP, &hdr, sizeof(hdr),
545 txfid, HERMES_802_3_OFFSET);
548 printk(KERN_ERR "%s: Error %d writing packet "
549 "header to BAP\n", dev->name, err);
553 } else { /* IEEE 802.3 frame */
554 data_len = len + ETH_HLEN;
555 data_off = HERMES_802_3_OFFSET;
559 /* Round up for odd length packets */
560 err = hermes_bap_pwrite(hw, USER_BAP, p, ALIGN(data_len, 2),
563 printk(KERN_ERR "%s: Error %d writing packet to BAP\n",
569 /* Finally, we actually initiate the send */
570 netif_stop_queue(dev);
572 err = hermes_docmd_wait(hw, HERMES_CMD_TX | HERMES_CMD_RECL,
575 netif_start_queue(dev);
576 printk(KERN_ERR "%s: Error %d transmitting packet\n",
582 dev->trans_start = jiffies;
583 stats->tx_bytes += data_off + data_len;
585 orinoco_unlock(priv, &flags);
589 TRACE_EXIT(dev->name);
593 TRACE_EXIT(dev->name);
595 orinoco_unlock(priv, &flags);
599 static void __orinoco_ev_alloc(struct net_device *dev, hermes_t *hw)
601 struct orinoco_private *priv = netdev_priv(dev);
602 u16 fid = hermes_read_regn(hw, ALLOCFID);
604 if (fid != priv->txfid) {
605 if (fid != DUMMY_FID)
606 printk(KERN_WARNING "%s: Allocate event on unexpected fid (%04X)\n",
611 hermes_write_regn(hw, ALLOCFID, DUMMY_FID);
614 static void __orinoco_ev_tx(struct net_device *dev, hermes_t *hw)
616 struct orinoco_private *priv = netdev_priv(dev);
617 struct net_device_stats *stats = &priv->stats;
621 netif_wake_queue(dev);
623 hermes_write_regn(hw, TXCOMPLFID, DUMMY_FID);
626 static void __orinoco_ev_txexc(struct net_device *dev, hermes_t *hw)
628 struct orinoco_private *priv = netdev_priv(dev);
629 struct net_device_stats *stats = &priv->stats;
630 u16 fid = hermes_read_regn(hw, TXCOMPLFID);
631 struct hermes_tx_descriptor_802_11 hdr;
634 if (fid == DUMMY_FID)
635 return; /* Nothing's really happened */
637 /* Read the frame header */
638 err = hermes_bap_pread(hw, IRQ_BAP, &hdr,
639 sizeof(struct hermes_tx_descriptor) +
640 sizeof(struct ieee80211_hdr),
643 hermes_write_regn(hw, TXCOMPLFID, DUMMY_FID);
647 printk(KERN_WARNING "%s: Unable to read descriptor on Tx error "
648 "(FID=%04X error %d)\n",
649 dev->name, fid, err);
653 DEBUG(1, "%s: Tx error, err %d (FID=%04X)\n", dev->name,
656 /* We produce a TXDROP event only for retry or lifetime
657 * exceeded, because that's the only status that really mean
658 * that this particular node went away.
659 * Other errors means that *we* screwed up. - Jean II */
660 hdr.status = le16_to_cpu(hdr.status);
661 if (hdr.status & (HERMES_TXSTAT_RETRYERR | HERMES_TXSTAT_AGEDERR)) {
662 union iwreq_data wrqu;
664 /* Copy 802.11 dest address.
665 * We use the 802.11 header because the frame may
666 * not be 802.3 or may be mangled...
667 * In Ad-Hoc mode, it will be the node address.
668 * In managed mode, it will be most likely the AP addr
669 * User space will figure out how to convert it to
670 * whatever it needs (IP address or else).
672 memcpy(wrqu.addr.sa_data, hdr.addr1, ETH_ALEN);
673 wrqu.addr.sa_family = ARPHRD_ETHER;
675 /* Send event to user space */
676 wireless_send_event(dev, IWEVTXDROP, &wrqu, NULL);
679 netif_wake_queue(dev);
682 static void orinoco_tx_timeout(struct net_device *dev)
684 struct orinoco_private *priv = netdev_priv(dev);
685 struct net_device_stats *stats = &priv->stats;
686 struct hermes *hw = &priv->hw;
688 printk(KERN_WARNING "%s: Tx timeout! "
689 "ALLOCFID=%04x, TXCOMPLFID=%04x, EVSTAT=%04x\n",
690 dev->name, hermes_read_regn(hw, ALLOCFID),
691 hermes_read_regn(hw, TXCOMPLFID), hermes_read_regn(hw, EVSTAT));
695 schedule_work(&priv->reset_work);
698 /********************************************************************/
699 /* Rx path (data frames) */
700 /********************************************************************/
702 /* Does the frame have a SNAP header indicating it should be
703 * de-encapsulated to Ethernet-II? */
704 static inline int is_ethersnap(void *_hdr)
708 /* We de-encapsulate all packets which, a) have SNAP headers
709 * (i.e. SSAP=DSAP=0xaa and CTRL=0x3 in the 802.2 LLC header
710 * and where b) the OUI of the SNAP header is 00:00:00 or
711 * 00:00:f8 - we need both because different APs appear to use
712 * different OUIs for some reason */
713 return (memcmp(hdr, &encaps_hdr, 5) == 0)
714 && ( (hdr[5] == 0x00) || (hdr[5] == 0xf8) );
717 static inline void orinoco_spy_gather(struct net_device *dev, u_char *mac,
718 int level, int noise)
720 struct orinoco_private *priv = netdev_priv(dev);
723 /* Gather wireless spy statistics: for each packet, compare the
724 * source address with out list, and if match, get the stats... */
725 for (i = 0; i < priv->spy_number; i++)
726 if (!memcmp(mac, priv->spy_address[i], ETH_ALEN)) {
727 priv->spy_stat[i].level = level - 0x95;
728 priv->spy_stat[i].noise = noise - 0x95;
729 priv->spy_stat[i].qual = (level > noise) ? (level - noise) : 0;
730 priv->spy_stat[i].updated = 7;
734 static void orinoco_stat_gather(struct net_device *dev,
736 struct hermes_rx_descriptor *desc)
738 struct orinoco_private *priv = netdev_priv(dev);
740 /* Using spy support with lots of Rx packets, like in an
741 * infrastructure (AP), will really slow down everything, because
742 * the MAC address must be compared to each entry of the spy list.
743 * If the user really asks for it (set some address in the
744 * spy list), we do it, but he will pay the price.
745 * Note that to get here, you need both WIRELESS_SPY
746 * compiled in AND some addresses in the list !!!
748 /* Note : gcc will optimise the whole section away if
749 * WIRELESS_SPY is not defined... - Jean II */
750 if (SPY_NUMBER(priv)) {
751 orinoco_spy_gather(dev, skb->mac.raw + ETH_ALEN,
752 desc->signal, desc->silence);
757 * orinoco_rx_monitor - handle received monitor frames.
762 * desc rx descriptor of the frame
764 * Call context: interrupt
766 static void orinoco_rx_monitor(struct net_device *dev, u16 rxfid,
767 struct hermes_rx_descriptor *desc)
769 u32 hdrlen = 30; /* return full header by default */
775 struct orinoco_private *priv = netdev_priv(dev);
776 struct net_device_stats *stats = &priv->stats;
777 hermes_t *hw = &priv->hw;
779 len = le16_to_cpu(desc->data_len);
781 /* Determine the size of the header and the data */
782 fc = le16_to_cpu(desc->frame_ctl);
783 switch (fc & IEEE80211_FCTL_FTYPE) {
784 case IEEE80211_FTYPE_DATA:
785 if ((fc & IEEE80211_FCTL_TODS)
786 && (fc & IEEE80211_FCTL_FROMDS))
792 case IEEE80211_FTYPE_MGMT:
796 case IEEE80211_FTYPE_CTL:
797 switch (fc & IEEE80211_FCTL_STYPE) {
798 case IEEE80211_STYPE_PSPOLL:
799 case IEEE80211_STYPE_RTS:
800 case IEEE80211_STYPE_CFEND:
801 case IEEE80211_STYPE_CFENDACK:
804 case IEEE80211_STYPE_CTS:
805 case IEEE80211_STYPE_ACK:
811 /* Unknown frame type */
815 /* sanity check the length */
816 if (datalen > IEEE80211_DATA_LEN + 12) {
817 printk(KERN_DEBUG "%s: oversized monitor frame, "
818 "data length = %d\n", dev->name, datalen);
820 stats->rx_length_errors++;
824 skb = dev_alloc_skb(hdrlen + datalen);
826 printk(KERN_WARNING "%s: Cannot allocate skb for monitor frame\n",
832 /* Copy the 802.11 header to the skb */
833 memcpy(skb_put(skb, hdrlen), &(desc->frame_ctl), hdrlen);
834 skb->mac.raw = skb->data;
836 /* If any, copy the data from the card to the skb */
838 err = hermes_bap_pread(hw, IRQ_BAP, skb_put(skb, datalen),
839 ALIGN(datalen, 2), rxfid,
840 HERMES_802_2_OFFSET);
842 printk(KERN_ERR "%s: error %d reading monitor frame\n",
849 skb->ip_summed = CHECKSUM_NONE;
850 skb->pkt_type = PACKET_OTHERHOST;
851 skb->protocol = __constant_htons(ETH_P_802_2);
853 dev->last_rx = jiffies;
855 stats->rx_bytes += skb->len;
861 dev_kfree_skb_irq(skb);
867 static void __orinoco_ev_rx(struct net_device *dev, hermes_t *hw)
869 struct orinoco_private *priv = netdev_priv(dev);
870 struct net_device_stats *stats = &priv->stats;
871 struct iw_statistics *wstats = &priv->wstats;
872 struct sk_buff *skb = NULL;
873 u16 rxfid, status, fc;
875 struct hermes_rx_descriptor desc;
879 rxfid = hermes_read_regn(hw, RXFID);
881 err = hermes_bap_pread(hw, IRQ_BAP, &desc, sizeof(desc),
884 printk(KERN_ERR "%s: error %d reading Rx descriptor. "
885 "Frame dropped.\n", dev->name, err);
889 status = le16_to_cpu(desc.status);
891 if (status & HERMES_RXSTAT_BADCRC) {
892 DEBUG(1, "%s: Bad CRC on Rx. Frame dropped.\n",
894 stats->rx_crc_errors++;
898 /* Handle frames in monitor mode */
899 if (priv->iw_mode == IW_MODE_MONITOR) {
900 orinoco_rx_monitor(dev, rxfid, &desc);
904 if (status & HERMES_RXSTAT_UNDECRYPTABLE) {
905 DEBUG(1, "%s: Undecryptable frame on Rx. Frame dropped.\n",
907 wstats->discard.code++;
911 length = le16_to_cpu(desc.data_len);
912 fc = le16_to_cpu(desc.frame_ctl);
915 if (length < 3) { /* No for even an 802.2 LLC header */
916 /* At least on Symbol firmware with PCF we get quite a
917 lot of these legitimately - Poll frames with no
921 if (length > IEEE802_11_DATA_LEN) {
922 printk(KERN_WARNING "%s: Oversized frame received (%d bytes)\n",
924 stats->rx_length_errors++;
928 /* We need space for the packet data itself, plus an ethernet
929 header, plus 2 bytes so we can align the IP header on a
930 32bit boundary, plus 1 byte so we can read in odd length
931 packets from the card, which has an IO granularity of 16
933 skb = dev_alloc_skb(length+ETH_HLEN+2+1);
935 printk(KERN_WARNING "%s: Can't allocate skb for Rx\n",
940 /* We'll prepend the header, so reserve space for it. The worst
941 case is no decapsulation, when 802.3 header is prepended and
942 nothing is removed. 2 is for aligning the IP header. */
943 skb_reserve(skb, ETH_HLEN + 2);
945 err = hermes_bap_pread(hw, IRQ_BAP, skb_put(skb, length),
946 ALIGN(length, 2), rxfid,
947 HERMES_802_2_OFFSET);
949 printk(KERN_ERR "%s: error %d reading frame. "
950 "Frame dropped.\n", dev->name, err);
954 /* Handle decapsulation
955 * In most cases, the firmware tell us about SNAP frames.
956 * For some reason, the SNAP frames sent by LinkSys APs
957 * are not properly recognised by most firmwares.
958 * So, check ourselves */
959 if (length >= ENCAPS_OVERHEAD &&
960 (((status & HERMES_RXSTAT_MSGTYPE) == HERMES_RXSTAT_1042) ||
961 ((status & HERMES_RXSTAT_MSGTYPE) == HERMES_RXSTAT_TUNNEL) ||
962 is_ethersnap(skb->data))) {
963 /* These indicate a SNAP within 802.2 LLC within
964 802.11 frame which we'll need to de-encapsulate to
965 the original EthernetII frame. */
966 hdr = (struct ethhdr *)skb_push(skb, ETH_HLEN - ENCAPS_OVERHEAD);
968 /* 802.3 frame - prepend 802.3 header as is */
969 hdr = (struct ethhdr *)skb_push(skb, ETH_HLEN);
970 hdr->h_proto = htons(length);
972 memcpy(hdr->h_dest, desc.addr1, ETH_ALEN);
973 if (fc & IEEE80211_FCTL_FROMDS)
974 memcpy(hdr->h_source, desc.addr3, ETH_ALEN);
976 memcpy(hdr->h_source, desc.addr2, ETH_ALEN);
978 dev->last_rx = jiffies;
980 skb->protocol = eth_type_trans(skb, dev);
981 skb->ip_summed = CHECKSUM_NONE;
982 if (fc & IEEE80211_FCTL_TODS)
983 skb->pkt_type = PACKET_OTHERHOST;
985 /* Process the wireless stats if needed */
986 orinoco_stat_gather(dev, skb, &desc);
988 /* Pass the packet to the networking stack */
991 stats->rx_bytes += length;
996 dev_kfree_skb_irq(skb);
1002 /********************************************************************/
1003 /* Rx path (info frames) */
1004 /********************************************************************/
1006 static void print_linkstatus(struct net_device *dev, u16 status)
1010 if (suppress_linkstatus)
1014 case HERMES_LINKSTATUS_NOT_CONNECTED:
1015 s = "Not Connected";
1017 case HERMES_LINKSTATUS_CONNECTED:
1020 case HERMES_LINKSTATUS_DISCONNECTED:
1023 case HERMES_LINKSTATUS_AP_CHANGE:
1026 case HERMES_LINKSTATUS_AP_OUT_OF_RANGE:
1027 s = "AP Out of Range";
1029 case HERMES_LINKSTATUS_AP_IN_RANGE:
1032 case HERMES_LINKSTATUS_ASSOC_FAILED:
1033 s = "Association Failed";
1039 printk(KERN_INFO "%s: New link status: %s (%04x)\n",
1040 dev->name, s, status);
1043 /* Search scan results for requested BSSID, join it if found */
1044 static void orinoco_join_ap(struct net_device *dev)
1046 struct orinoco_private *priv = netdev_priv(dev);
1047 struct hermes *hw = &priv->hw;
1049 unsigned long flags;
1053 } __attribute__ ((packed)) req;
1054 const int atom_len = offsetof(struct prism2_scan_apinfo, atim);
1055 struct prism2_scan_apinfo *atom;
1060 /* Allocate buffer for scan results */
1061 buf = kmalloc(MAX_SCAN_LEN, GFP_KERNEL);
1065 if (orinoco_lock(priv, &flags) != 0)
1068 /* Sanity checks in case user changed something in the meantime */
1069 if (! priv->bssid_fixed)
1072 if (strlen(priv->desired_essid) == 0)
1075 /* Read scan results from the firmware */
1076 err = hermes_read_ltv(hw, USER_BAP,
1077 HERMES_RID_SCANRESULTSTABLE,
1078 MAX_SCAN_LEN, &len, buf);
1080 printk(KERN_ERR "%s: Cannot read scan results\n",
1085 len = HERMES_RECLEN_TO_BYTES(len);
1087 /* Go through the scan results looking for the channel of the AP
1088 * we were requested to join */
1089 for (; offset + atom_len <= len; offset += atom_len) {
1090 atom = (struct prism2_scan_apinfo *) (buf + offset);
1091 if (memcmp(&atom->bssid, priv->desired_bssid, ETH_ALEN) == 0)
1095 DEBUG(1, "%s: Requested AP not found in scan results\n",
1100 memcpy(req.bssid, priv->desired_bssid, ETH_ALEN);
1101 req.channel = atom->channel; /* both are little-endian */
1102 err = HERMES_WRITE_RECORD(hw, USER_BAP, HERMES_RID_CNFJOINREQUEST,
1105 printk(KERN_ERR "%s: Error issuing join request\n", dev->name);
1109 orinoco_unlock(priv, &flags);
1112 /* Send new BSSID to userspace */
1113 static void orinoco_send_wevents(struct net_device *dev)
1115 struct orinoco_private *priv = netdev_priv(dev);
1116 struct hermes *hw = &priv->hw;
1117 union iwreq_data wrqu;
1119 unsigned long flags;
1121 if (orinoco_lock(priv, &flags) != 0)
1124 err = hermes_read_ltv(hw, IRQ_BAP, HERMES_RID_CURRENTBSSID,
1125 ETH_ALEN, NULL, wrqu.ap_addr.sa_data);
1129 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
1131 /* Send event to user space */
1132 wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
1133 orinoco_unlock(priv, &flags);
1136 static void __orinoco_ev_info(struct net_device *dev, hermes_t *hw)
1138 struct orinoco_private *priv = netdev_priv(dev);
1143 } __attribute__ ((packed)) info;
1147 /* This is an answer to an INQUIRE command that we did earlier,
1148 * or an information "event" generated by the card
1149 * The controller return to us a pseudo frame containing
1150 * the information in question - Jean II */
1151 infofid = hermes_read_regn(hw, INFOFID);
1153 /* Read the info frame header - don't try too hard */
1154 err = hermes_bap_pread(hw, IRQ_BAP, &info, sizeof(info),
1157 printk(KERN_ERR "%s: error %d reading info frame. "
1158 "Frame dropped.\n", dev->name, err);
1162 len = HERMES_RECLEN_TO_BYTES(le16_to_cpu(info.len));
1163 type = le16_to_cpu(info.type);
1166 case HERMES_INQ_TALLIES: {
1167 struct hermes_tallies_frame tallies;
1168 struct iw_statistics *wstats = &priv->wstats;
1170 if (len > sizeof(tallies)) {
1171 printk(KERN_WARNING "%s: Tallies frame too long (%d bytes)\n",
1173 len = sizeof(tallies);
1176 err = hermes_bap_pread(hw, IRQ_BAP, &tallies, len,
1177 infofid, sizeof(info));
1181 /* Increment our various counters */
1182 /* wstats->discard.nwid - no wrong BSSID stuff */
1183 wstats->discard.code +=
1184 le16_to_cpu(tallies.RxWEPUndecryptable);
1185 if (len == sizeof(tallies))
1186 wstats->discard.code +=
1187 le16_to_cpu(tallies.RxDiscards_WEPICVError) +
1188 le16_to_cpu(tallies.RxDiscards_WEPExcluded);
1189 wstats->discard.misc +=
1190 le16_to_cpu(tallies.TxDiscardsWrongSA);
1191 wstats->discard.fragment +=
1192 le16_to_cpu(tallies.RxMsgInBadMsgFragments);
1193 wstats->discard.retries +=
1194 le16_to_cpu(tallies.TxRetryLimitExceeded);
1195 /* wstats->miss.beacon - no match */
1198 case HERMES_INQ_LINKSTATUS: {
1199 struct hermes_linkstatus linkstatus;
1203 if (priv->iw_mode == IW_MODE_MONITOR)
1206 if (len != sizeof(linkstatus)) {
1207 printk(KERN_WARNING "%s: Unexpected size for linkstatus frame (%d bytes)\n",
1212 err = hermes_bap_pread(hw, IRQ_BAP, &linkstatus, len,
1213 infofid, sizeof(info));
1216 newstatus = le16_to_cpu(linkstatus.linkstatus);
1218 /* Symbol firmware uses "out of range" to signal that
1219 * the hostscan frame can be requested. */
1220 if (newstatus == HERMES_LINKSTATUS_AP_OUT_OF_RANGE &&
1221 priv->firmware_type == FIRMWARE_TYPE_SYMBOL &&
1222 priv->has_hostscan && priv->scan_inprogress) {
1223 hermes_inquire(hw, HERMES_INQ_HOSTSCAN_SYMBOL);
1227 connected = (newstatus == HERMES_LINKSTATUS_CONNECTED)
1228 || (newstatus == HERMES_LINKSTATUS_AP_CHANGE)
1229 || (newstatus == HERMES_LINKSTATUS_AP_IN_RANGE);
1232 netif_carrier_on(dev);
1233 else if (!ignore_disconnect)
1234 netif_carrier_off(dev);
1236 if (newstatus != priv->last_linkstatus) {
1237 priv->last_linkstatus = newstatus;
1238 print_linkstatus(dev, newstatus);
1239 /* The info frame contains only one word which is the
1240 * status (see hermes.h). The status is pretty boring
1241 * in itself, that's why we export the new BSSID...
1243 schedule_work(&priv->wevent_work);
1247 case HERMES_INQ_SCAN:
1248 if (!priv->scan_inprogress && priv->bssid_fixed &&
1249 priv->firmware_type == FIRMWARE_TYPE_INTERSIL) {
1250 schedule_work(&priv->join_work);
1254 case HERMES_INQ_HOSTSCAN:
1255 case HERMES_INQ_HOSTSCAN_SYMBOL: {
1256 /* Result of a scanning. Contains information about
1257 * cells in the vicinity - Jean II */
1258 union iwreq_data wrqu;
1263 printk(KERN_WARNING "%s: Scan results too large (%d bytes)\n",
1268 /* We are a strict producer. If the previous scan results
1269 * have not been consumed, we just have to drop this
1270 * frame. We can't remove the previous results ourselves,
1271 * that would be *very* racy... Jean II */
1272 if (priv->scan_result != NULL) {
1273 printk(KERN_WARNING "%s: Previous scan results not consumed, dropping info frame.\n", dev->name);
1277 /* Allocate buffer for results */
1278 buf = kmalloc(len, GFP_ATOMIC);
1280 /* No memory, so can't printk()... */
1283 /* Read scan data */
1284 err = hermes_bap_pread(hw, IRQ_BAP, (void *) buf, len,
1285 infofid, sizeof(info));
1289 #ifdef ORINOCO_DEBUG
1292 printk(KERN_DEBUG "Scan result [%02X", buf[0]);
1293 for(i = 1; i < (len * 2); i++)
1294 printk(":%02X", buf[i]);
1297 #endif /* ORINOCO_DEBUG */
1299 /* Allow the clients to access the results */
1300 priv->scan_len = len;
1301 priv->scan_result = buf;
1303 /* Send an empty event to user space.
1304 * We don't send the received data on the event because
1305 * it would require us to do complex transcoding, and
1306 * we want to minimise the work done in the irq handler
1307 * Use a request to extract the data - Jean II */
1308 wrqu.data.length = 0;
1309 wrqu.data.flags = 0;
1310 wireless_send_event(dev, SIOCGIWSCAN, &wrqu, NULL);
1313 case HERMES_INQ_SEC_STAT_AGERE:
1314 /* Security status (Agere specific) */
1315 /* Ignore this frame for now */
1316 if (priv->firmware_type == FIRMWARE_TYPE_AGERE)
1320 printk(KERN_DEBUG "%s: Unknown information frame received: "
1321 "type 0x%04x, length %d\n", dev->name, type, len);
1322 /* We don't actually do anything about it */
1327 static void __orinoco_ev_infdrop(struct net_device *dev, hermes_t *hw)
1329 if (net_ratelimit())
1330 printk(KERN_DEBUG "%s: Information frame lost.\n", dev->name);
1333 /********************************************************************/
1334 /* Internal hardware control routines */
1335 /********************************************************************/
1337 int __orinoco_up(struct net_device *dev)
1339 struct orinoco_private *priv = netdev_priv(dev);
1340 struct hermes *hw = &priv->hw;
1343 netif_carrier_off(dev); /* just to make sure */
1345 err = __orinoco_program_rids(dev);
1347 printk(KERN_ERR "%s: Error %d configuring card\n",
1352 /* Fire things up again */
1353 hermes_set_irqmask(hw, ORINOCO_INTEN);
1354 err = hermes_enable_port(hw, 0);
1356 printk(KERN_ERR "%s: Error %d enabling MAC port\n",
1361 netif_start_queue(dev);
1366 int __orinoco_down(struct net_device *dev)
1368 struct orinoco_private *priv = netdev_priv(dev);
1369 struct hermes *hw = &priv->hw;
1372 netif_stop_queue(dev);
1374 if (! priv->hw_unavailable) {
1375 if (! priv->broken_disableport) {
1376 err = hermes_disable_port(hw, 0);
1378 /* Some firmwares (e.g. Intersil 1.3.x) seem
1379 * to have problems disabling the port, oh
1381 printk(KERN_WARNING "%s: Error %d disabling MAC port\n",
1383 priv->broken_disableport = 1;
1386 hermes_set_irqmask(hw, 0);
1387 hermes_write_regn(hw, EVACK, 0xffff);
1390 /* firmware will have to reassociate */
1391 netif_carrier_off(dev);
1392 priv->last_linkstatus = 0xffff;
1397 int orinoco_reinit_firmware(struct net_device *dev)
1399 struct orinoco_private *priv = netdev_priv(dev);
1400 struct hermes *hw = &priv->hw;
1403 err = hermes_init(hw);
1407 err = hermes_allocate(hw, priv->nicbuf_size, &priv->txfid);
1408 if (err == -EIO && priv->nicbuf_size > TX_NICBUF_SIZE_BUG) {
1409 /* Try workaround for old Symbol firmware bug */
1410 printk(KERN_WARNING "%s: firmware ALLOC bug detected "
1411 "(old Symbol firmware?). Trying to work around... ",
1414 priv->nicbuf_size = TX_NICBUF_SIZE_BUG;
1415 err = hermes_allocate(hw, priv->nicbuf_size, &priv->txfid);
1417 printk("failed!\n");
1425 static int __orinoco_hw_set_bitrate(struct orinoco_private *priv)
1427 hermes_t *hw = &priv->hw;
1430 if (priv->bitratemode >= BITRATE_TABLE_SIZE) {
1431 printk(KERN_ERR "%s: BUG: Invalid bitrate mode %d\n",
1432 priv->ndev->name, priv->bitratemode);
1436 switch (priv->firmware_type) {
1437 case FIRMWARE_TYPE_AGERE:
1438 err = hermes_write_wordrec(hw, USER_BAP,
1439 HERMES_RID_CNFTXRATECONTROL,
1440 bitrate_table[priv->bitratemode].agere_txratectrl);
1442 case FIRMWARE_TYPE_INTERSIL:
1443 case FIRMWARE_TYPE_SYMBOL:
1444 err = hermes_write_wordrec(hw, USER_BAP,
1445 HERMES_RID_CNFTXRATECONTROL,
1446 bitrate_table[priv->bitratemode].intersil_txratectrl);
1455 /* Set fixed AP address */
1456 static int __orinoco_hw_set_wap(struct orinoco_private *priv)
1460 hermes_t *hw = &priv->hw;
1462 switch (priv->firmware_type) {
1463 case FIRMWARE_TYPE_AGERE:
1466 case FIRMWARE_TYPE_INTERSIL:
1467 if (priv->bssid_fixed)
1472 err = hermes_write_wordrec(hw, USER_BAP,
1473 HERMES_RID_CNFROAMINGMODE,
1476 case FIRMWARE_TYPE_SYMBOL:
1477 err = HERMES_WRITE_RECORD(hw, USER_BAP,
1478 HERMES_RID_CNFMANDATORYBSSID_SYMBOL,
1479 &priv->desired_bssid);
1485 /* Change the WEP keys and/or the current keys. Can be called
1486 * either from __orinoco_hw_setup_wep() or directly from
1487 * orinoco_ioctl_setiwencode(). In the later case the association
1488 * with the AP is not broken (if the firmware can handle it),
1489 * which is needed for 802.1x implementations. */
1490 static int __orinoco_hw_setup_wepkeys(struct orinoco_private *priv)
1492 hermes_t *hw = &priv->hw;
1495 switch (priv->firmware_type) {
1496 case FIRMWARE_TYPE_AGERE:
1497 err = HERMES_WRITE_RECORD(hw, USER_BAP,
1498 HERMES_RID_CNFWEPKEYS_AGERE,
1502 err = hermes_write_wordrec(hw, USER_BAP,
1503 HERMES_RID_CNFTXKEY_AGERE,
1508 case FIRMWARE_TYPE_INTERSIL:
1509 case FIRMWARE_TYPE_SYMBOL:
1514 /* Force uniform key length to work around firmware bugs */
1515 keylen = le16_to_cpu(priv->keys[priv->tx_key].len);
1517 if (keylen > LARGE_KEY_SIZE) {
1518 printk(KERN_ERR "%s: BUG: Key %d has oversize length %d.\n",
1519 priv->ndev->name, priv->tx_key, keylen);
1523 /* Write all 4 keys */
1524 for(i = 0; i < ORINOCO_MAX_KEYS; i++) {
1525 err = hermes_write_ltv(hw, USER_BAP,
1526 HERMES_RID_CNFDEFAULTKEY0 + i,
1527 HERMES_BYTES_TO_RECLEN(keylen),
1528 priv->keys[i].data);
1533 /* Write the index of the key used in transmission */
1534 err = hermes_write_wordrec(hw, USER_BAP,
1535 HERMES_RID_CNFWEPDEFAULTKEYID,
1546 static int __orinoco_hw_setup_wep(struct orinoco_private *priv)
1548 hermes_t *hw = &priv->hw;
1550 int master_wep_flag;
1554 __orinoco_hw_setup_wepkeys(priv);
1556 if (priv->wep_restrict)
1557 auth_flag = HERMES_AUTH_SHARED_KEY;
1559 auth_flag = HERMES_AUTH_OPEN;
1561 switch (priv->firmware_type) {
1562 case FIRMWARE_TYPE_AGERE: /* Agere style WEP */
1564 /* Enable the shared-key authentication. */
1565 err = hermes_write_wordrec(hw, USER_BAP,
1566 HERMES_RID_CNFAUTHENTICATION_AGERE,
1569 err = hermes_write_wordrec(hw, USER_BAP,
1570 HERMES_RID_CNFWEPENABLED_AGERE,
1576 case FIRMWARE_TYPE_INTERSIL: /* Intersil style WEP */
1577 case FIRMWARE_TYPE_SYMBOL: /* Symbol style WEP */
1579 if (priv->wep_restrict ||
1580 (priv->firmware_type == FIRMWARE_TYPE_SYMBOL))
1581 master_wep_flag = HERMES_WEP_PRIVACY_INVOKED |
1582 HERMES_WEP_EXCL_UNENCRYPTED;
1584 master_wep_flag = HERMES_WEP_PRIVACY_INVOKED;
1586 err = hermes_write_wordrec(hw, USER_BAP,
1587 HERMES_RID_CNFAUTHENTICATION,
1592 master_wep_flag = 0;
1594 if (priv->iw_mode == IW_MODE_MONITOR)
1595 master_wep_flag |= HERMES_WEP_HOST_DECRYPT;
1597 /* Master WEP setting : on/off */
1598 err = hermes_write_wordrec(hw, USER_BAP,
1599 HERMES_RID_CNFWEPFLAGS_INTERSIL,
1610 static int __orinoco_program_rids(struct net_device *dev)
1612 struct orinoco_private *priv = netdev_priv(dev);
1613 hermes_t *hw = &priv->hw;
1615 struct hermes_idstring idbuf;
1617 /* Set the MAC address */
1618 err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFOWNMACADDR,
1619 HERMES_BYTES_TO_RECLEN(ETH_ALEN), dev->dev_addr);
1621 printk(KERN_ERR "%s: Error %d setting MAC address\n",
1626 /* Set up the link mode */
1627 err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFPORTTYPE,
1630 printk(KERN_ERR "%s: Error %d setting port type\n",
1634 /* Set the channel/frequency */
1635 if (priv->channel != 0 && priv->iw_mode != IW_MODE_INFRA) {
1636 err = hermes_write_wordrec(hw, USER_BAP,
1637 HERMES_RID_CNFOWNCHANNEL,
1640 printk(KERN_ERR "%s: Error %d setting channel %d\n",
1641 dev->name, err, priv->channel);
1646 if (priv->has_ibss) {
1649 if ((strlen(priv->desired_essid) == 0) && (priv->createibss)) {
1650 printk(KERN_WARNING "%s: This firmware requires an "
1651 "ESSID in IBSS-Ad-Hoc mode.\n", dev->name);
1652 /* With wvlan_cs, in this case, we would crash.
1653 * hopefully, this driver will behave better...
1657 createibss = priv->createibss;
1660 err = hermes_write_wordrec(hw, USER_BAP,
1661 HERMES_RID_CNFCREATEIBSS,
1664 printk(KERN_ERR "%s: Error %d setting CREATEIBSS\n",
1670 /* Set the desired BSSID */
1671 err = __orinoco_hw_set_wap(priv);
1673 printk(KERN_ERR "%s: Error %d setting AP address\n",
1677 /* Set the desired ESSID */
1678 idbuf.len = cpu_to_le16(strlen(priv->desired_essid));
1679 memcpy(&idbuf.val, priv->desired_essid, sizeof(idbuf.val));
1680 /* WinXP wants partner to configure OWNSSID even in IBSS mode. (jimc) */
1681 err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFOWNSSID,
1682 HERMES_BYTES_TO_RECLEN(strlen(priv->desired_essid)+2),
1685 printk(KERN_ERR "%s: Error %d setting OWNSSID\n",
1689 err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFDESIREDSSID,
1690 HERMES_BYTES_TO_RECLEN(strlen(priv->desired_essid)+2),
1693 printk(KERN_ERR "%s: Error %d setting DESIREDSSID\n",
1698 /* Set the station name */
1699 idbuf.len = cpu_to_le16(strlen(priv->nick));
1700 memcpy(&idbuf.val, priv->nick, sizeof(idbuf.val));
1701 err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFOWNNAME,
1702 HERMES_BYTES_TO_RECLEN(strlen(priv->nick)+2),
1705 printk(KERN_ERR "%s: Error %d setting nickname\n",
1710 /* Set AP density */
1711 if (priv->has_sensitivity) {
1712 err = hermes_write_wordrec(hw, USER_BAP,
1713 HERMES_RID_CNFSYSTEMSCALE,
1716 printk(KERN_WARNING "%s: Error %d setting SYSTEMSCALE. "
1717 "Disabling sensitivity control\n",
1720 priv->has_sensitivity = 0;
1724 /* Set RTS threshold */
1725 err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFRTSTHRESHOLD,
1728 printk(KERN_ERR "%s: Error %d setting RTS threshold\n",
1733 /* Set fragmentation threshold or MWO robustness */
1735 err = hermes_write_wordrec(hw, USER_BAP,
1736 HERMES_RID_CNFMWOROBUST_AGERE,
1739 err = hermes_write_wordrec(hw, USER_BAP,
1740 HERMES_RID_CNFFRAGMENTATIONTHRESHOLD,
1743 printk(KERN_ERR "%s: Error %d setting fragmentation\n",
1749 err = __orinoco_hw_set_bitrate(priv);
1751 printk(KERN_ERR "%s: Error %d setting bitrate\n",
1756 /* Set power management */
1758 err = hermes_write_wordrec(hw, USER_BAP,
1759 HERMES_RID_CNFPMENABLED,
1762 printk(KERN_ERR "%s: Error %d setting up PM\n",
1767 err = hermes_write_wordrec(hw, USER_BAP,
1768 HERMES_RID_CNFMULTICASTRECEIVE,
1771 printk(KERN_ERR "%s: Error %d setting up PM\n",
1775 err = hermes_write_wordrec(hw, USER_BAP,
1776 HERMES_RID_CNFMAXSLEEPDURATION,
1779 printk(KERN_ERR "%s: Error %d setting up PM\n",
1783 err = hermes_write_wordrec(hw, USER_BAP,
1784 HERMES_RID_CNFPMHOLDOVERDURATION,
1787 printk(KERN_ERR "%s: Error %d setting up PM\n",
1793 /* Set preamble - only for Symbol so far... */
1794 if (priv->has_preamble) {
1795 err = hermes_write_wordrec(hw, USER_BAP,
1796 HERMES_RID_CNFPREAMBLE_SYMBOL,
1799 printk(KERN_ERR "%s: Error %d setting preamble\n",
1805 /* Set up encryption */
1806 if (priv->has_wep) {
1807 err = __orinoco_hw_setup_wep(priv);
1809 printk(KERN_ERR "%s: Error %d activating WEP\n",
1815 if (priv->iw_mode == IW_MODE_MONITOR) {
1816 /* Enable monitor mode */
1817 dev->type = ARPHRD_IEEE80211;
1818 err = hermes_docmd_wait(hw, HERMES_CMD_TEST |
1819 HERMES_TEST_MONITOR, 0, NULL);
1821 /* Disable monitor mode */
1822 dev->type = ARPHRD_ETHER;
1823 err = hermes_docmd_wait(hw, HERMES_CMD_TEST |
1824 HERMES_TEST_STOP, 0, NULL);
1829 /* Set promiscuity / multicast*/
1830 priv->promiscuous = 0;
1832 __orinoco_set_multicast_list(dev); /* FIXME: what about the xmit_lock */
1837 /* FIXME: return int? */
1839 __orinoco_set_multicast_list(struct net_device *dev)
1841 struct orinoco_private *priv = netdev_priv(dev);
1842 hermes_t *hw = &priv->hw;
1844 int promisc, mc_count;
1846 /* The Hermes doesn't seem to have an allmulti mode, so we go
1847 * into promiscuous mode and let the upper levels deal. */
1848 if ( (dev->flags & IFF_PROMISC) || (dev->flags & IFF_ALLMULTI) ||
1849 (dev->mc_count > MAX_MULTICAST(priv)) ) {
1854 mc_count = dev->mc_count;
1857 if (promisc != priv->promiscuous) {
1858 err = hermes_write_wordrec(hw, USER_BAP,
1859 HERMES_RID_CNFPROMISCUOUSMODE,
1862 printk(KERN_ERR "%s: Error %d setting PROMISCUOUSMODE to 1.\n",
1865 priv->promiscuous = promisc;
1868 if (! promisc && (mc_count || priv->mc_count) ) {
1869 struct dev_mc_list *p = dev->mc_list;
1870 struct hermes_multicast mclist;
1873 for (i = 0; i < mc_count; i++) {
1874 /* paranoia: is list shorter than mc_count? */
1876 /* paranoia: bad address size in list? */
1877 BUG_ON(p->dmi_addrlen != ETH_ALEN);
1879 memcpy(mclist.addr[i], p->dmi_addr, ETH_ALEN);
1884 printk(KERN_WARNING "%s: Multicast list is "
1885 "longer than mc_count\n", dev->name);
1887 err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFGROUPADDRESSES,
1888 HERMES_BYTES_TO_RECLEN(priv->mc_count * ETH_ALEN),
1891 printk(KERN_ERR "%s: Error %d setting multicast list.\n",
1894 priv->mc_count = mc_count;
1897 /* Since we can set the promiscuous flag when it wasn't asked
1898 for, make sure the net_device knows about it. */
1899 if (priv->promiscuous)
1900 dev->flags |= IFF_PROMISC;
1902 dev->flags &= ~IFF_PROMISC;
1905 /* This must be called from user context, without locks held - use
1906 * schedule_work() */
1907 static void orinoco_reset(struct net_device *dev)
1909 struct orinoco_private *priv = netdev_priv(dev);
1910 struct hermes *hw = &priv->hw;
1912 unsigned long flags;
1914 if (orinoco_lock(priv, &flags) != 0)
1915 /* When the hardware becomes available again, whatever
1916 * detects that is responsible for re-initializing
1917 * it. So no need for anything further */
1920 netif_stop_queue(dev);
1922 /* Shut off interrupts. Depending on what state the hardware
1923 * is in, this might not work, but we'll try anyway */
1924 hermes_set_irqmask(hw, 0);
1925 hermes_write_regn(hw, EVACK, 0xffff);
1927 priv->hw_unavailable++;
1928 priv->last_linkstatus = 0xffff; /* firmware will have to reassociate */
1929 netif_carrier_off(dev);
1931 orinoco_unlock(priv, &flags);
1933 /* Scanning support: Cleanup of driver struct */
1934 kfree(priv->scan_result);
1935 priv->scan_result = NULL;
1936 priv->scan_inprogress = 0;
1938 if (priv->hard_reset) {
1939 err = (*priv->hard_reset)(priv);
1941 printk(KERN_ERR "%s: orinoco_reset: Error %d "
1942 "performing hard reset\n", dev->name, err);
1947 err = orinoco_reinit_firmware(dev);
1949 printk(KERN_ERR "%s: orinoco_reset: Error %d re-initializing firmware\n",
1954 spin_lock_irq(&priv->lock); /* This has to be called from user context */
1956 priv->hw_unavailable--;
1958 /* priv->open or priv->hw_unavailable might have changed while
1959 * we dropped the lock */
1960 if (priv->open && (! priv->hw_unavailable)) {
1961 err = __orinoco_up(dev);
1963 printk(KERN_ERR "%s: orinoco_reset: Error %d reenabling card\n",
1966 dev->trans_start = jiffies;
1969 spin_unlock_irq(&priv->lock);
1973 hermes_set_irqmask(hw, 0);
1974 netif_device_detach(dev);
1975 printk(KERN_ERR "%s: Device has been disabled!\n", dev->name);
1978 /********************************************************************/
1979 /* Interrupt handler */
1980 /********************************************************************/
1982 static void __orinoco_ev_tick(struct net_device *dev, hermes_t *hw)
1984 printk(KERN_DEBUG "%s: TICK\n", dev->name);
1987 static void __orinoco_ev_wterr(struct net_device *dev, hermes_t *hw)
1989 /* This seems to happen a fair bit under load, but ignoring it
1990 seems to work fine...*/
1991 printk(KERN_DEBUG "%s: MAC controller error (WTERR). Ignoring.\n",
1995 irqreturn_t orinoco_interrupt(int irq, void *dev_id, struct pt_regs *regs)
1997 struct net_device *dev = (struct net_device *)dev_id;
1998 struct orinoco_private *priv = netdev_priv(dev);
1999 hermes_t *hw = &priv->hw;
2000 int count = MAX_IRQLOOPS_PER_IRQ;
2002 /* These are used to detect a runaway interrupt situation */
2003 /* If we get more than MAX_IRQLOOPS_PER_JIFFY iterations in a jiffy,
2004 * we panic and shut down the hardware */
2005 static int last_irq_jiffy = 0; /* jiffies value the last time
2007 static int loops_this_jiffy = 0;
2008 unsigned long flags;
2010 if (orinoco_lock(priv, &flags) != 0) {
2011 /* If hw is unavailable - we don't know if the irq was
2016 evstat = hermes_read_regn(hw, EVSTAT);
2017 events = evstat & hw->inten;
2019 orinoco_unlock(priv, &flags);
2023 if (jiffies != last_irq_jiffy)
2024 loops_this_jiffy = 0;
2025 last_irq_jiffy = jiffies;
2027 while (events && count--) {
2028 if (++loops_this_jiffy > MAX_IRQLOOPS_PER_JIFFY) {
2029 printk(KERN_WARNING "%s: IRQ handler is looping too "
2030 "much! Resetting.\n", dev->name);
2031 /* Disable interrupts for now */
2032 hermes_set_irqmask(hw, 0);
2033 schedule_work(&priv->reset_work);
2037 /* Check the card hasn't been removed */
2038 if (! hermes_present(hw)) {
2039 DEBUG(0, "orinoco_interrupt(): card removed\n");
2043 if (events & HERMES_EV_TICK)
2044 __orinoco_ev_tick(dev, hw);
2045 if (events & HERMES_EV_WTERR)
2046 __orinoco_ev_wterr(dev, hw);
2047 if (events & HERMES_EV_INFDROP)
2048 __orinoco_ev_infdrop(dev, hw);
2049 if (events & HERMES_EV_INFO)
2050 __orinoco_ev_info(dev, hw);
2051 if (events & HERMES_EV_RX)
2052 __orinoco_ev_rx(dev, hw);
2053 if (events & HERMES_EV_TXEXC)
2054 __orinoco_ev_txexc(dev, hw);
2055 if (events & HERMES_EV_TX)
2056 __orinoco_ev_tx(dev, hw);
2057 if (events & HERMES_EV_ALLOC)
2058 __orinoco_ev_alloc(dev, hw);
2060 hermes_write_regn(hw, EVACK, evstat);
2062 evstat = hermes_read_regn(hw, EVSTAT);
2063 events = evstat & hw->inten;
2066 orinoco_unlock(priv, &flags);
2070 /********************************************************************/
2071 /* Initialization */
2072 /********************************************************************/
2075 u16 id, variant, major, minor;
2076 } __attribute__ ((packed));
2078 static inline fwtype_t determine_firmware_type(struct comp_id *nic_id)
2080 if (nic_id->id < 0x8000)
2081 return FIRMWARE_TYPE_AGERE;
2082 else if (nic_id->id == 0x8000 && nic_id->major == 0)
2083 return FIRMWARE_TYPE_SYMBOL;
2085 return FIRMWARE_TYPE_INTERSIL;
2088 /* Set priv->firmware type, determine firmware properties */
2089 static int determine_firmware(struct net_device *dev)
2091 struct orinoco_private *priv = netdev_priv(dev);
2092 hermes_t *hw = &priv->hw;
2094 struct comp_id nic_id, sta_id;
2095 unsigned int firmver;
2096 char tmp[SYMBOL_MAX_VER_LEN+1];
2098 /* Get the hardware version */
2099 err = HERMES_READ_RECORD(hw, USER_BAP, HERMES_RID_NICID, &nic_id);
2101 printk(KERN_ERR "%s: Cannot read hardware identity: error %d\n",
2106 le16_to_cpus(&nic_id.id);
2107 le16_to_cpus(&nic_id.variant);
2108 le16_to_cpus(&nic_id.major);
2109 le16_to_cpus(&nic_id.minor);
2110 printk(KERN_DEBUG "%s: Hardware identity %04x:%04x:%04x:%04x\n",
2111 dev->name, nic_id.id, nic_id.variant,
2112 nic_id.major, nic_id.minor);
2114 priv->firmware_type = determine_firmware_type(&nic_id);
2116 /* Get the firmware version */
2117 err = HERMES_READ_RECORD(hw, USER_BAP, HERMES_RID_STAID, &sta_id);
2119 printk(KERN_ERR "%s: Cannot read station identity: error %d\n",
2124 le16_to_cpus(&sta_id.id);
2125 le16_to_cpus(&sta_id.variant);
2126 le16_to_cpus(&sta_id.major);
2127 le16_to_cpus(&sta_id.minor);
2128 printk(KERN_DEBUG "%s: Station identity %04x:%04x:%04x:%04x\n",
2129 dev->name, sta_id.id, sta_id.variant,
2130 sta_id.major, sta_id.minor);
2132 switch (sta_id.id) {
2134 printk(KERN_ERR "%s: Primary firmware is active\n",
2138 printk(KERN_ERR "%s: Tertiary firmware is active\n",
2141 case 0x1f: /* Intersil, Agere, Symbol Spectrum24 */
2142 case 0x21: /* Symbol Spectrum24 Trilogy */
2145 printk(KERN_NOTICE "%s: Unknown station ID, please report\n",
2150 /* Default capabilities */
2151 priv->has_sensitivity = 1;
2153 priv->has_preamble = 0;
2154 priv->has_port3 = 1;
2157 priv->has_big_wep = 0;
2159 /* Determine capabilities from the firmware version */
2160 switch (priv->firmware_type) {
2161 case FIRMWARE_TYPE_AGERE:
2162 /* Lucent Wavelan IEEE, Lucent Orinoco, Cabletron RoamAbout,
2163 ELSA, Melco, HP, IBM, Dell 1150, Compaq 110/210 */
2164 snprintf(priv->fw_name, sizeof(priv->fw_name) - 1,
2165 "Lucent/Agere %d.%02d", sta_id.major, sta_id.minor);
2167 firmver = ((unsigned long)sta_id.major << 16) | sta_id.minor;
2169 priv->has_ibss = (firmver >= 0x60006);
2170 priv->has_wep = (firmver >= 0x40020);
2171 priv->has_big_wep = 1; /* FIXME: this is wrong - how do we tell
2172 Gold cards from the others? */
2173 priv->has_mwo = (firmver >= 0x60000);
2174 priv->has_pm = (firmver >= 0x40020); /* Don't work in 7.52 ? */
2175 priv->ibss_port = 1;
2176 priv->has_hostscan = (firmver >= 0x8000a);
2177 priv->broken_monitor = (firmver >= 0x80000);
2179 /* Tested with Agere firmware :
2180 * 1.16 ; 4.08 ; 4.52 ; 6.04 ; 6.16 ; 7.28 => Jean II
2181 * Tested CableTron firmware : 4.32 => Anton */
2183 case FIRMWARE_TYPE_SYMBOL:
2184 /* Symbol , 3Com AirConnect, Intel, Ericsson WLAN */
2185 /* Intel MAC : 00:02:B3:* */
2186 /* 3Com MAC : 00:50:DA:* */
2187 memset(tmp, 0, sizeof(tmp));
2188 /* Get the Symbol firmware version */
2189 err = hermes_read_ltv(hw, USER_BAP,
2190 HERMES_RID_SECONDARYVERSION_SYMBOL,
2191 SYMBOL_MAX_VER_LEN, NULL, &tmp);
2194 "%s: Error %d reading Symbol firmware info. Wildly guessing capabilities...\n",
2199 /* The firmware revision is a string, the format is
2200 * something like : "V2.20-01".
2201 * Quick and dirty parsing... - Jean II
2203 firmver = ((tmp[1] - '0') << 16) | ((tmp[3] - '0') << 12)
2204 | ((tmp[4] - '0') << 8) | ((tmp[6] - '0') << 4)
2207 tmp[SYMBOL_MAX_VER_LEN] = '\0';
2210 snprintf(priv->fw_name, sizeof(priv->fw_name) - 1,
2213 priv->has_ibss = (firmver >= 0x20000);
2214 priv->has_wep = (firmver >= 0x15012);
2215 priv->has_big_wep = (firmver >= 0x20000);
2216 priv->has_pm = (firmver >= 0x20000 && firmver < 0x22000) ||
2217 (firmver >= 0x29000 && firmver < 0x30000) ||
2219 priv->has_preamble = (firmver >= 0x20000);
2220 priv->ibss_port = 4;
2221 priv->broken_disableport = (firmver == 0x25013) ||
2222 (firmver >= 0x30000 && firmver <= 0x31000);
2223 priv->has_hostscan = (firmver >= 0x31001) ||
2224 (firmver >= 0x29057 && firmver < 0x30000);
2225 /* Tested with Intel firmware : 0x20015 => Jean II */
2226 /* Tested with 3Com firmware : 0x15012 & 0x22001 => Jean II */
2228 case FIRMWARE_TYPE_INTERSIL:
2229 /* D-Link, Linksys, Adtron, ZoomAir, and many others...
2230 * Samsung, Compaq 100/200 and Proxim are slightly
2231 * different and less well tested */
2232 /* D-Link MAC : 00:40:05:* */
2233 /* Addtron MAC : 00:90:D1:* */
2234 snprintf(priv->fw_name, sizeof(priv->fw_name) - 1,
2235 "Intersil %d.%d.%d", sta_id.major, sta_id.minor,
2238 firmver = ((unsigned long)sta_id.major << 16) |
2239 ((unsigned long)sta_id.minor << 8) | sta_id.variant;
2241 priv->has_ibss = (firmver >= 0x000700); /* FIXME */
2242 priv->has_big_wep = priv->has_wep = (firmver >= 0x000800);
2243 priv->has_pm = (firmver >= 0x000700);
2244 priv->has_hostscan = (firmver >= 0x010301);
2246 if (firmver >= 0x000800)
2247 priv->ibss_port = 0;
2249 printk(KERN_NOTICE "%s: Intersil firmware earlier "
2250 "than v0.8.x - several features not supported\n",
2252 priv->ibss_port = 1;
2256 printk(KERN_DEBUG "%s: Firmware determined as %s\n", dev->name,
2262 static int orinoco_init(struct net_device *dev)
2264 struct orinoco_private *priv = netdev_priv(dev);
2265 hermes_t *hw = &priv->hw;
2267 struct hermes_idstring nickbuf;
2271 TRACE_ENTER(dev->name);
2273 /* No need to lock, the hw_unavailable flag is already set in
2274 * alloc_orinocodev() */
2275 priv->nicbuf_size = IEEE802_11_FRAME_LEN + ETH_HLEN;
2277 /* Initialize the firmware */
2278 err = orinoco_reinit_firmware(dev);
2280 printk(KERN_ERR "%s: failed to initialize firmware (err = %d)\n",
2285 err = determine_firmware(dev);
2287 printk(KERN_ERR "%s: Incompatible firmware, aborting\n",
2292 if (priv->has_port3)
2293 printk(KERN_DEBUG "%s: Ad-hoc demo mode supported\n", dev->name);
2295 printk(KERN_DEBUG "%s: IEEE standard IBSS ad-hoc mode supported\n",
2297 if (priv->has_wep) {
2298 printk(KERN_DEBUG "%s: WEP supported, ", dev->name);
2299 if (priv->has_big_wep)
2300 printk("104-bit key\n");
2302 printk("40-bit key\n");
2305 /* Get the MAC address */
2306 err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CNFOWNMACADDR,
2307 ETH_ALEN, NULL, dev->dev_addr);
2309 printk(KERN_WARNING "%s: failed to read MAC address!\n",
2314 printk(KERN_DEBUG "%s: MAC address %02X:%02X:%02X:%02X:%02X:%02X\n",
2315 dev->name, dev->dev_addr[0], dev->dev_addr[1],
2316 dev->dev_addr[2], dev->dev_addr[3], dev->dev_addr[4],
2319 /* Get the station name */
2320 err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CNFOWNNAME,
2321 sizeof(nickbuf), &reclen, &nickbuf);
2323 printk(KERN_ERR "%s: failed to read station name\n",
2328 len = min(IW_ESSID_MAX_SIZE, (int)le16_to_cpu(nickbuf.len));
2330 len = min(IW_ESSID_MAX_SIZE, 2 * reclen);
2331 memcpy(priv->nick, &nickbuf.val, len);
2332 priv->nick[len] = '\0';
2334 printk(KERN_DEBUG "%s: Station name \"%s\"\n", dev->name, priv->nick);
2336 /* Get allowed channels */
2337 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CHANNELLIST,
2338 &priv->channel_mask);
2340 printk(KERN_ERR "%s: failed to read channel list!\n",
2345 /* Get initial AP density */
2346 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFSYSTEMSCALE,
2348 if (err || priv->ap_density < 1 || priv->ap_density > 3) {
2349 priv->has_sensitivity = 0;
2352 /* Get initial RTS threshold */
2353 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFRTSTHRESHOLD,
2356 printk(KERN_ERR "%s: failed to read RTS threshold!\n",
2361 /* Get initial fragmentation settings */
2363 err = hermes_read_wordrec(hw, USER_BAP,
2364 HERMES_RID_CNFMWOROBUST_AGERE,
2367 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFFRAGMENTATIONTHRESHOLD,
2368 &priv->frag_thresh);
2370 printk(KERN_ERR "%s: failed to read fragmentation settings!\n",
2375 /* Power management setup */
2379 err = hermes_read_wordrec(hw, USER_BAP,
2380 HERMES_RID_CNFMAXSLEEPDURATION,
2383 printk(KERN_ERR "%s: failed to read power management period!\n",
2387 err = hermes_read_wordrec(hw, USER_BAP,
2388 HERMES_RID_CNFPMHOLDOVERDURATION,
2391 printk(KERN_ERR "%s: failed to read power management timeout!\n",
2397 /* Preamble setup */
2398 if (priv->has_preamble) {
2399 err = hermes_read_wordrec(hw, USER_BAP,
2400 HERMES_RID_CNFPREAMBLE_SYMBOL,
2406 /* Set up the default configuration */
2407 priv->iw_mode = IW_MODE_INFRA;
2408 /* By default use IEEE/IBSS ad-hoc mode if we have it */
2409 priv->prefer_port3 = priv->has_port3 && (! priv->has_ibss);
2410 set_port_type(priv);
2411 priv->channel = 0; /* use firmware default */
2413 priv->promiscuous = 0;
2417 /* Make the hardware available, as long as it hasn't been
2418 * removed elsewhere (e.g. by PCMCIA hot unplug) */
2419 spin_lock_irq(&priv->lock);
2420 priv->hw_unavailable--;
2421 spin_unlock_irq(&priv->lock);
2423 printk(KERN_DEBUG "%s: ready\n", dev->name);
2426 TRACE_EXIT(dev->name);
2430 struct net_device *alloc_orinocodev(int sizeof_card,
2431 int (*hard_reset)(struct orinoco_private *))
2433 struct net_device *dev;
2434 struct orinoco_private *priv;
2436 dev = alloc_etherdev(sizeof(struct orinoco_private) + sizeof_card);
2439 priv = netdev_priv(dev);
2442 priv->card = (void *)((unsigned long)priv
2443 + sizeof(struct orinoco_private));
2447 /* Setup / override net_device fields */
2448 dev->init = orinoco_init;
2449 dev->hard_start_xmit = orinoco_xmit;
2450 dev->tx_timeout = orinoco_tx_timeout;
2451 dev->watchdog_timeo = HZ; /* 1 second timeout */
2452 dev->get_stats = orinoco_get_stats;
2453 dev->ethtool_ops = &orinoco_ethtool_ops;
2454 dev->get_wireless_stats = orinoco_get_wireless_stats;
2455 dev->wireless_handlers = (struct iw_handler_def *)&orinoco_handler_def;
2456 dev->change_mtu = orinoco_change_mtu;
2457 dev->set_multicast_list = orinoco_set_multicast_list;
2458 /* we use the default eth_mac_addr for setting the MAC addr */
2460 /* Set up default callbacks */
2461 dev->open = orinoco_open;
2462 dev->stop = orinoco_stop;
2463 priv->hard_reset = hard_reset;
2465 spin_lock_init(&priv->lock);
2467 priv->hw_unavailable = 1; /* orinoco_init() must clear this
2468 * before anything else touches the
2470 INIT_WORK(&priv->reset_work, (void (*)(void *))orinoco_reset, dev);
2471 INIT_WORK(&priv->join_work, (void (*)(void *))orinoco_join_ap, dev);
2472 INIT_WORK(&priv->wevent_work, (void (*)(void *))orinoco_send_wevents, dev);
2474 netif_carrier_off(dev);
2475 priv->last_linkstatus = 0xffff;
2481 void free_orinocodev(struct net_device *dev)
2483 struct orinoco_private *priv = netdev_priv(dev);
2485 kfree(priv->scan_result);
2489 /********************************************************************/
2490 /* Wireless extensions */
2491 /********************************************************************/
2493 static int orinoco_hw_get_essid(struct orinoco_private *priv, int *active,
2494 char buf[IW_ESSID_MAX_SIZE+1])
2496 hermes_t *hw = &priv->hw;
2498 struct hermes_idstring essidbuf;
2499 char *p = (char *)(&essidbuf.val);
2501 unsigned long flags;
2503 if (orinoco_lock(priv, &flags) != 0)
2506 if (strlen(priv->desired_essid) > 0) {
2507 /* We read the desired SSID from the hardware rather
2508 than from priv->desired_essid, just in case the
2509 firmware is allowed to change it on us. I'm not
2511 /* My guess is that the OWNSSID should always be whatever
2512 * we set to the card, whereas CURRENT_SSID is the one that
2513 * may change... - Jean II */
2518 rid = (priv->port_type == 3) ? HERMES_RID_CNFOWNSSID :
2519 HERMES_RID_CNFDESIREDSSID;
2521 err = hermes_read_ltv(hw, USER_BAP, rid, sizeof(essidbuf),
2528 err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CURRENTSSID,
2529 sizeof(essidbuf), NULL, &essidbuf);
2534 len = le16_to_cpu(essidbuf.len);
2535 BUG_ON(len > IW_ESSID_MAX_SIZE);
2537 memset(buf, 0, IW_ESSID_MAX_SIZE+1);
2538 memcpy(buf, p, len);
2542 orinoco_unlock(priv, &flags);
2547 static long orinoco_hw_get_freq(struct orinoco_private *priv)
2550 hermes_t *hw = &priv->hw;
2554 unsigned long flags;
2556 if (orinoco_lock(priv, &flags) != 0)
2559 err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CURRENTCHANNEL, &channel);
2563 /* Intersil firmware 1.3.5 returns 0 when the interface is down */
2569 if ( (channel < 1) || (channel > NUM_CHANNELS) ) {
2570 printk(KERN_WARNING "%s: Channel out of range (%d)!\n",
2571 priv->ndev->name, channel);
2576 freq = channel_frequency[channel-1] * 100000;
2579 orinoco_unlock(priv, &flags);
2583 return err ? err : freq;
2586 static int orinoco_hw_get_bitratelist(struct orinoco_private *priv,
2587 int *numrates, s32 *rates, int max)
2589 hermes_t *hw = &priv->hw;
2590 struct hermes_idstring list;
2591 unsigned char *p = (unsigned char *)&list.val;
2595 unsigned long flags;
2597 if (orinoco_lock(priv, &flags) != 0)
2600 err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_SUPPORTEDDATARATES,
2601 sizeof(list), NULL, &list);
2602 orinoco_unlock(priv, &flags);
2607 num = le16_to_cpu(list.len);
2609 num = min(num, max);
2611 for (i = 0; i < num; i++) {
2612 rates[i] = (p[i] & 0x7f) * 500000; /* convert to bps */
2618 static int orinoco_ioctl_getname(struct net_device *dev,
2619 struct iw_request_info *info,
2623 struct orinoco_private *priv = netdev_priv(dev);
2627 err = orinoco_hw_get_bitratelist(priv, &numrates, NULL, 0);
2629 if (!err && (numrates > 2))
2630 strcpy(name, "IEEE 802.11b");
2632 strcpy(name, "IEEE 802.11-DS");
2637 static int orinoco_ioctl_setwap(struct net_device *dev,
2638 struct iw_request_info *info,
2639 struct sockaddr *ap_addr,
2642 struct orinoco_private *priv = netdev_priv(dev);
2643 int err = -EINPROGRESS; /* Call commit handler */
2644 unsigned long flags;
2645 static const u8 off_addr[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
2646 static const u8 any_addr[] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
2648 if (orinoco_lock(priv, &flags) != 0)
2651 /* Enable automatic roaming - no sanity checks are needed */
2652 if (memcmp(&ap_addr->sa_data, off_addr, ETH_ALEN) == 0 ||
2653 memcmp(&ap_addr->sa_data, any_addr, ETH_ALEN) == 0) {
2654 priv->bssid_fixed = 0;
2655 memset(priv->desired_bssid, 0, ETH_ALEN);
2657 /* "off" means keep existing connection */
2658 if (ap_addr->sa_data[0] == 0) {
2659 __orinoco_hw_set_wap(priv);
2665 if (priv->firmware_type == FIRMWARE_TYPE_AGERE) {
2666 printk(KERN_WARNING "%s: Lucent/Agere firmware doesn't "
2667 "support manual roaming\n",
2673 if (priv->iw_mode != IW_MODE_INFRA) {
2674 printk(KERN_WARNING "%s: Manual roaming supported only in "
2675 "managed mode\n", dev->name);
2680 /* Intersil firmware hangs without Desired ESSID */
2681 if (priv->firmware_type == FIRMWARE_TYPE_INTERSIL &&
2682 strlen(priv->desired_essid) == 0) {
2683 printk(KERN_WARNING "%s: Desired ESSID must be set for "
2684 "manual roaming\n", dev->name);
2689 /* Finally, enable manual roaming */
2690 priv->bssid_fixed = 1;
2691 memcpy(priv->desired_bssid, &ap_addr->sa_data, ETH_ALEN);
2694 orinoco_unlock(priv, &flags);
2698 static int orinoco_ioctl_getwap(struct net_device *dev,
2699 struct iw_request_info *info,
2700 struct sockaddr *ap_addr,
2703 struct orinoco_private *priv = netdev_priv(dev);
2705 hermes_t *hw = &priv->hw;
2707 unsigned long flags;
2709 if (orinoco_lock(priv, &flags) != 0)
2712 ap_addr->sa_family = ARPHRD_ETHER;
2713 err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CURRENTBSSID,
2714 ETH_ALEN, NULL, ap_addr->sa_data);
2716 orinoco_unlock(priv, &flags);
2721 static int orinoco_ioctl_setmode(struct net_device *dev,
2722 struct iw_request_info *info,
2726 struct orinoco_private *priv = netdev_priv(dev);
2727 int err = -EINPROGRESS; /* Call commit handler */
2728 unsigned long flags;
2730 if (priv->iw_mode == *mode)
2733 if (orinoco_lock(priv, &flags) != 0)
2738 if (!priv->has_ibss && !priv->has_port3)
2745 case IW_MODE_MONITOR:
2746 if (priv->broken_monitor && !force_monitor) {
2747 printk(KERN_WARNING "%s: Monitor mode support is "
2748 "buggy in this firmware, not enabling\n",
2759 if (err == -EINPROGRESS) {
2760 priv->iw_mode = *mode;
2761 set_port_type(priv);
2764 orinoco_unlock(priv, &flags);
2769 static int orinoco_ioctl_getmode(struct net_device *dev,
2770 struct iw_request_info *info,
2774 struct orinoco_private *priv = netdev_priv(dev);
2776 *mode = priv->iw_mode;
2780 static int orinoco_ioctl_getiwrange(struct net_device *dev,
2781 struct iw_request_info *info,
2782 struct iw_point *rrq,
2785 struct orinoco_private *priv = netdev_priv(dev);
2787 struct iw_range *range = (struct iw_range *) extra;
2791 TRACE_ENTER(dev->name);
2793 rrq->length = sizeof(struct iw_range);
2794 memset(range, 0, sizeof(struct iw_range));
2796 range->we_version_compiled = WIRELESS_EXT;
2797 range->we_version_source = 14;
2799 /* Set available channels/frequencies */
2800 range->num_channels = NUM_CHANNELS;
2802 for (i = 0; i < NUM_CHANNELS; i++) {
2803 if (priv->channel_mask & (1 << i)) {
2804 range->freq[k].i = i + 1;
2805 range->freq[k].m = channel_frequency[i] * 100000;
2806 range->freq[k].e = 1;
2810 if (k >= IW_MAX_FREQUENCIES)
2813 range->num_frequency = k;
2814 range->sensitivity = 3;
2816 if (priv->has_wep) {
2817 range->max_encoding_tokens = ORINOCO_MAX_KEYS;
2818 range->encoding_size[0] = SMALL_KEY_SIZE;
2819 range->num_encoding_sizes = 1;
2821 if (priv->has_big_wep) {
2822 range->encoding_size[1] = LARGE_KEY_SIZE;
2823 range->num_encoding_sizes = 2;
2827 if ((priv->iw_mode == IW_MODE_ADHOC) && (priv->spy_number == 0)){
2828 /* Quality stats meaningless in ad-hoc mode */
2830 range->max_qual.qual = 0x8b - 0x2f;
2831 range->max_qual.level = 0x2f - 0x95 - 1;
2832 range->max_qual.noise = 0x2f - 0x95 - 1;
2833 /* Need to get better values */
2834 range->avg_qual.qual = 0x24;
2835 range->avg_qual.level = 0xC2;
2836 range->avg_qual.noise = 0x9E;
2839 err = orinoco_hw_get_bitratelist(priv, &numrates,
2840 range->bitrate, IW_MAX_BITRATES);
2843 range->num_bitrates = numrates;
2845 /* Set an indication of the max TCP throughput in bit/s that we can
2846 * expect using this interface. May be use for QoS stuff...
2849 range->throughput = 5 * 1000 * 1000; /* ~5 Mb/s */
2851 range->throughput = 1.5 * 1000 * 1000; /* ~1.5 Mb/s */
2854 range->max_rts = 2347;
2855 range->min_frag = 256;
2856 range->max_frag = 2346;
2859 range->max_pmp = 65535000;
2861 range->max_pmt = 65535 * 1000; /* ??? */
2862 range->pmp_flags = IW_POWER_PERIOD;
2863 range->pmt_flags = IW_POWER_TIMEOUT;
2864 range->pm_capa = IW_POWER_PERIOD | IW_POWER_TIMEOUT | IW_POWER_UNICAST_R;
2866 range->retry_capa = IW_RETRY_LIMIT | IW_RETRY_LIFETIME;
2867 range->retry_flags = IW_RETRY_LIMIT;
2868 range->r_time_flags = IW_RETRY_LIFETIME;
2869 range->min_retry = 0;
2870 range->max_retry = 65535; /* ??? */
2871 range->min_r_time = 0;
2872 range->max_r_time = 65535 * 1000; /* ??? */
2874 TRACE_EXIT(dev->name);
2879 static int orinoco_ioctl_setiwencode(struct net_device *dev,
2880 struct iw_request_info *info,
2881 struct iw_point *erq,
2884 struct orinoco_private *priv = netdev_priv(dev);
2885 int index = (erq->flags & IW_ENCODE_INDEX) - 1;
2886 int setindex = priv->tx_key;
2887 int enable = priv->wep_on;
2888 int restricted = priv->wep_restrict;
2890 int err = -EINPROGRESS; /* Call commit handler */
2891 unsigned long flags;
2893 if (! priv->has_wep)
2897 /* We actually have a key to set - check its length */
2898 if (erq->length > LARGE_KEY_SIZE)
2901 if ( (erq->length > SMALL_KEY_SIZE) && !priv->has_big_wep )
2905 if (orinoco_lock(priv, &flags) != 0)
2909 if ((index < 0) || (index >= ORINOCO_MAX_KEYS))
2910 index = priv->tx_key;
2912 /* Adjust key length to a supported value */
2913 if (erq->length > SMALL_KEY_SIZE) {
2914 xlen = LARGE_KEY_SIZE;
2915 } else if (erq->length > 0) {
2916 xlen = SMALL_KEY_SIZE;
2920 /* Switch on WEP if off */
2921 if ((!enable) && (xlen > 0)) {
2926 /* Important note : if the user do "iwconfig eth0 enc off",
2927 * we will arrive there with an index of -1. This is valid
2928 * but need to be taken care off... Jean II */
2929 if ((index < 0) || (index >= ORINOCO_MAX_KEYS)) {
2930 if((index != -1) || (erq->flags == 0)) {
2935 /* Set the index : Check that the key is valid */
2936 if(priv->keys[index].len == 0) {
2944 if (erq->flags & IW_ENCODE_DISABLED)
2946 if (erq->flags & IW_ENCODE_OPEN)
2948 if (erq->flags & IW_ENCODE_RESTRICTED)
2952 priv->keys[index].len = cpu_to_le16(xlen);
2953 memset(priv->keys[index].data, 0,
2954 sizeof(priv->keys[index].data));
2955 memcpy(priv->keys[index].data, keybuf, erq->length);
2957 priv->tx_key = setindex;
2959 /* Try fast key change if connected and only keys are changed */
2960 if (priv->wep_on && enable && (priv->wep_restrict == restricted) &&
2961 netif_carrier_ok(dev)) {
2962 err = __orinoco_hw_setup_wepkeys(priv);
2963 /* No need to commit if successful */
2967 priv->wep_on = enable;
2968 priv->wep_restrict = restricted;
2971 orinoco_unlock(priv, &flags);
2976 static int orinoco_ioctl_getiwencode(struct net_device *dev,
2977 struct iw_request_info *info,
2978 struct iw_point *erq,
2981 struct orinoco_private *priv = netdev_priv(dev);
2982 int index = (erq->flags & IW_ENCODE_INDEX) - 1;
2984 unsigned long flags;
2986 if (! priv->has_wep)
2989 if (orinoco_lock(priv, &flags) != 0)
2992 if ((index < 0) || (index >= ORINOCO_MAX_KEYS))
2993 index = priv->tx_key;
2997 erq->flags |= IW_ENCODE_DISABLED;
2998 erq->flags |= index + 1;
3000 if (priv->wep_restrict)
3001 erq->flags |= IW_ENCODE_RESTRICTED;
3003 erq->flags |= IW_ENCODE_OPEN;
3005 xlen = le16_to_cpu(priv->keys[index].len);
3009 memcpy(keybuf, priv->keys[index].data, ORINOCO_MAX_KEY_SIZE);
3011 orinoco_unlock(priv, &flags);
3015 static int orinoco_ioctl_setessid(struct net_device *dev,
3016 struct iw_request_info *info,
3017 struct iw_point *erq,
3020 struct orinoco_private *priv = netdev_priv(dev);
3021 unsigned long flags;
3023 /* Note : ESSID is ignored in Ad-Hoc demo mode, but we can set it
3024 * anyway... - Jean II */
3026 /* Hum... Should not use Wireless Extension constant (may change),
3027 * should use our own... - Jean II */
3028 if (erq->length > IW_ESSID_MAX_SIZE)
3031 if (orinoco_lock(priv, &flags) != 0)
3034 /* NULL the string (for NULL termination & ESSID = ANY) - Jean II */
3035 memset(priv->desired_essid, 0, sizeof(priv->desired_essid));
3037 /* If not ANY, get the new ESSID */
3039 memcpy(priv->desired_essid, essidbuf, erq->length);
3042 orinoco_unlock(priv, &flags);
3044 return -EINPROGRESS; /* Call commit handler */
3047 static int orinoco_ioctl_getessid(struct net_device *dev,
3048 struct iw_request_info *info,
3049 struct iw_point *erq,
3052 struct orinoco_private *priv = netdev_priv(dev);
3055 unsigned long flags;
3057 TRACE_ENTER(dev->name);
3059 if (netif_running(dev)) {
3060 err = orinoco_hw_get_essid(priv, &active, essidbuf);
3064 if (orinoco_lock(priv, &flags) != 0)
3066 memcpy(essidbuf, priv->desired_essid, IW_ESSID_MAX_SIZE + 1);
3067 orinoco_unlock(priv, &flags);
3071 erq->length = strlen(essidbuf) + 1;
3073 TRACE_EXIT(dev->name);
3078 static int orinoco_ioctl_setnick(struct net_device *dev,
3079 struct iw_request_info *info,
3080 struct iw_point *nrq,
3083 struct orinoco_private *priv = netdev_priv(dev);
3084 unsigned long flags;
3086 if (nrq->length > IW_ESSID_MAX_SIZE)
3089 if (orinoco_lock(priv, &flags) != 0)
3092 memset(priv->nick, 0, sizeof(priv->nick));
3093 memcpy(priv->nick, nickbuf, nrq->length);
3095 orinoco_unlock(priv, &flags);
3097 return -EINPROGRESS; /* Call commit handler */
3100 static int orinoco_ioctl_getnick(struct net_device *dev,
3101 struct iw_request_info *info,
3102 struct iw_point *nrq,
3105 struct orinoco_private *priv = netdev_priv(dev);
3106 unsigned long flags;
3108 if (orinoco_lock(priv, &flags) != 0)
3111 memcpy(nickbuf, priv->nick, IW_ESSID_MAX_SIZE+1);
3112 orinoco_unlock(priv, &flags);
3114 nrq->length = strlen(nickbuf)+1;
3119 static int orinoco_ioctl_setfreq(struct net_device *dev,
3120 struct iw_request_info *info,
3121 struct iw_freq *frq,
3124 struct orinoco_private *priv = netdev_priv(dev);
3126 unsigned long flags;
3127 int err = -EINPROGRESS; /* Call commit handler */
3129 /* In infrastructure mode the AP sets the channel */
3130 if (priv->iw_mode == IW_MODE_INFRA)
3133 if ( (frq->e == 0) && (frq->m <= 1000) ) {
3134 /* Setting by channel number */