Commit | Line | Data |
---|---|---|
47445cb9 | 1 | /* main.c - (formerly known as dldwd_cs.c, orinoco_cs.c and orinoco.c) |
1da177e4 LT |
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 | /* | |
1da177e4 | 49 | * TODO |
1da177e4 LT |
50 | * o Handle de-encapsulation within network layer, provide 802.11 |
51 | * headers (patch from Thomas 'Dent' Mirlacher) | |
1da177e4 LT |
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 | ||
1da177e4 LT |
79 | #include <linux/module.h> |
80 | #include <linux/kernel.h> | |
81 | #include <linux/init.h> | |
d03032af | 82 | #include <linux/delay.h> |
1da177e4 | 83 | #include <linux/netdevice.h> |
1da177e4 | 84 | #include <linux/etherdevice.h> |
1fab2e8b | 85 | #include <linux/ethtool.h> |
39d1ffee | 86 | #include <linux/suspend.h> |
9c974fb1 | 87 | #include <linux/if_arp.h> |
1da177e4 | 88 | #include <linux/wireless.h> |
2c706002 | 89 | #include <linux/ieee80211.h> |
620554e4 | 90 | #include <net/iw_handler.h> |
1da177e4 | 91 | |
1da177e4 | 92 | #include "hermes_rid.h" |
3994d502 | 93 | #include "hermes_dld.h" |
712a4342 | 94 | #include "hw.h" |
fb791b1c | 95 | #include "scan.h" |
4adb474b | 96 | #include "mic.h" |
37a2e566 | 97 | #include "fw.h" |
cb1576a8 DK |
98 | #include "wext.h" |
99 | #include "main.h" | |
fb791b1c | 100 | |
1da177e4 | 101 | #include "orinoco.h" |
1da177e4 LT |
102 | |
103 | /********************************************************************/ | |
104 | /* Module information */ | |
105 | /********************************************************************/ | |
106 | ||
b2f30a0a DK |
107 | MODULE_AUTHOR("Pavel Roskin <proski@gnu.org> & " |
108 | "David Gibson <hermes@gibson.dropbear.id.au>"); | |
109 | MODULE_DESCRIPTION("Driver for Lucent Orinoco, Prism II based " | |
110 | "and similar wireless cards"); | |
1da177e4 LT |
111 | MODULE_LICENSE("Dual MPL/GPL"); |
112 | ||
113 | /* Level of debugging. Used in the macros in orinoco.h */ | |
114 | #ifdef ORINOCO_DEBUG | |
115 | int orinoco_debug = ORINOCO_DEBUG; | |
2131266d | 116 | EXPORT_SYMBOL(orinoco_debug); |
1da177e4 LT |
117 | module_param(orinoco_debug, int, 0644); |
118 | MODULE_PARM_DESC(orinoco_debug, "Debug level"); | |
1da177e4 LT |
119 | #endif |
120 | ||
121 | static int suppress_linkstatus; /* = 0 */ | |
122 | module_param(suppress_linkstatus, bool, 0644); | |
123 | MODULE_PARM_DESC(suppress_linkstatus, "Don't log link status changes"); | |
b2f30a0a | 124 | |
7bb7c3a3 DG |
125 | static int ignore_disconnect; /* = 0 */ |
126 | module_param(ignore_disconnect, int, 0644); | |
b2f30a0a DK |
127 | MODULE_PARM_DESC(ignore_disconnect, |
128 | "Don't report lost link to the network layer"); | |
1da177e4 | 129 | |
cb1576a8 | 130 | int force_monitor; /* = 0 */ |
98c4cae1 CH |
131 | module_param(force_monitor, int, 0644); |
132 | MODULE_PARM_DESC(force_monitor, "Allow monitor mode for all firmware versions"); | |
133 | ||
1da177e4 LT |
134 | /********************************************************************/ |
135 | /* Internal constants */ | |
136 | /********************************************************************/ | |
137 | ||
95dd91fb CH |
138 | /* 802.2 LLC/SNAP header used for Ethernet encapsulation over 802.11 */ |
139 | static const u8 encaps_hdr[] = {0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00}; | |
140 | #define ENCAPS_OVERHEAD (sizeof(encaps_hdr) + 2) | |
141 | ||
1da177e4 | 142 | #define ORINOCO_MIN_MTU 256 |
2c706002 | 143 | #define ORINOCO_MAX_MTU (IEEE80211_MAX_DATA_LEN - ENCAPS_OVERHEAD) |
1da177e4 LT |
144 | |
145 | #define SYMBOL_MAX_VER_LEN (14) | |
1da177e4 LT |
146 | #define MAX_IRQLOOPS_PER_IRQ 10 |
147 | #define MAX_IRQLOOPS_PER_JIFFY (20000/HZ) /* Based on a guestimate of | |
148 | * how many events the | |
149 | * device could | |
150 | * legitimately generate */ | |
1da177e4 LT |
151 | #define TX_NICBUF_SIZE_BUG 1585 /* Bug in Symbol firmware */ |
152 | ||
153 | #define DUMMY_FID 0xFFFF | |
154 | ||
155 | /*#define MAX_MULTICAST(priv) (priv->firmware_type == FIRMWARE_TYPE_AGERE ? \ | |
156 | HERMES_MAX_MULTICAST : 0)*/ | |
157 | #define MAX_MULTICAST(priv) (HERMES_MAX_MULTICAST) | |
158 | ||
159 | #define ORINOCO_INTEN (HERMES_EV_RX | HERMES_EV_ALLOC \ | |
160 | | HERMES_EV_TX | HERMES_EV_TXEXC \ | |
161 | | HERMES_EV_WTERR | HERMES_EV_INFO \ | |
a94e8427 | 162 | | HERMES_EV_INFDROP) |
1da177e4 | 163 | |
7282d491 | 164 | static const struct ethtool_ops orinoco_ethtool_ops; |
620554e4 | 165 | |
1da177e4 LT |
166 | /********************************************************************/ |
167 | /* Data types */ | |
168 | /********************************************************************/ | |
169 | ||
30c2d3b4 PR |
170 | /* Beginning of the Tx descriptor, used in TxExc handling */ |
171 | struct hermes_txexc_data { | |
172 | struct hermes_tx_descriptor desc; | |
d133ae4c PR |
173 | __le16 frame_ctl; |
174 | __le16 duration_id; | |
95dd91fb | 175 | u8 addr1[ETH_ALEN]; |
1da177e4 LT |
176 | } __attribute__ ((packed)); |
177 | ||
8f2abf44 | 178 | /* Rx frame header except compatibility 802.3 header */ |
1da177e4 | 179 | struct hermes_rx_descriptor { |
8f2abf44 | 180 | /* Control */ |
d133ae4c PR |
181 | __le16 status; |
182 | __le32 time; | |
1da177e4 LT |
183 | u8 silence; |
184 | u8 signal; | |
185 | u8 rate; | |
186 | u8 rxflow; | |
d133ae4c | 187 | __le32 reserved; |
8f2abf44 CH |
188 | |
189 | /* 802.11 header */ | |
d133ae4c PR |
190 | __le16 frame_ctl; |
191 | __le16 duration_id; | |
8f2abf44 CH |
192 | u8 addr1[ETH_ALEN]; |
193 | u8 addr2[ETH_ALEN]; | |
194 | u8 addr3[ETH_ALEN]; | |
d133ae4c | 195 | __le16 seq_ctl; |
8f2abf44 CH |
196 | u8 addr4[ETH_ALEN]; |
197 | ||
198 | /* Data length */ | |
d133ae4c | 199 | __le16 data_len; |
1da177e4 LT |
200 | } __attribute__ ((packed)); |
201 | ||
47166791 DK |
202 | struct orinoco_rx_data { |
203 | struct hermes_rx_descriptor *desc; | |
204 | struct sk_buff *skb; | |
205 | struct list_head list; | |
206 | }; | |
207 | ||
1da177e4 LT |
208 | /********************************************************************/ |
209 | /* Function prototypes */ | |
210 | /********************************************************************/ | |
211 | ||
1da177e4 | 212 | static void __orinoco_set_multicast_list(struct net_device *dev); |
1da177e4 LT |
213 | |
214 | /********************************************************************/ | |
215 | /* Internal helper functions */ | |
216 | /********************************************************************/ | |
217 | ||
cb1576a8 | 218 | void set_port_type(struct orinoco_private *priv) |
1da177e4 LT |
219 | { |
220 | switch (priv->iw_mode) { | |
221 | case IW_MODE_INFRA: | |
222 | priv->port_type = 1; | |
223 | priv->createibss = 0; | |
224 | break; | |
225 | case IW_MODE_ADHOC: | |
226 | if (priv->prefer_port3) { | |
227 | priv->port_type = 3; | |
228 | priv->createibss = 0; | |
229 | } else { | |
230 | priv->port_type = priv->ibss_port; | |
231 | priv->createibss = 1; | |
232 | } | |
233 | break; | |
98c4cae1 CH |
234 | case IW_MODE_MONITOR: |
235 | priv->port_type = 3; | |
236 | priv->createibss = 0; | |
237 | break; | |
1da177e4 LT |
238 | default: |
239 | printk(KERN_ERR "%s: Invalid priv->iw_mode in set_port_type()\n", | |
240 | priv->ndev->name); | |
241 | } | |
242 | } | |
243 | ||
244 | /********************************************************************/ | |
245 | /* Device methods */ | |
246 | /********************************************************************/ | |
247 | ||
248 | static int orinoco_open(struct net_device *dev) | |
249 | { | |
250 | struct orinoco_private *priv = netdev_priv(dev); | |
251 | unsigned long flags; | |
252 | int err; | |
253 | ||
254 | if (orinoco_lock(priv, &flags) != 0) | |
255 | return -EBUSY; | |
256 | ||
257 | err = __orinoco_up(dev); | |
258 | ||
a94e8427 | 259 | if (!err) |
1da177e4 LT |
260 | priv->open = 1; |
261 | ||
262 | orinoco_unlock(priv, &flags); | |
263 | ||
264 | return err; | |
265 | } | |
266 | ||
ad8f451b | 267 | static int orinoco_stop(struct net_device *dev) |
1da177e4 LT |
268 | { |
269 | struct orinoco_private *priv = netdev_priv(dev); | |
270 | int err = 0; | |
271 | ||
272 | /* We mustn't use orinoco_lock() here, because we need to be | |
273 | able to close the interface even if hw_unavailable is set | |
274 | (e.g. as we're released after a PC Card removal) */ | |
275 | spin_lock_irq(&priv->lock); | |
276 | ||
277 | priv->open = 0; | |
278 | ||
279 | err = __orinoco_down(dev); | |
280 | ||
281 | spin_unlock_irq(&priv->lock); | |
282 | ||
283 | return err; | |
284 | } | |
285 | ||
286 | static struct net_device_stats *orinoco_get_stats(struct net_device *dev) | |
287 | { | |
288 | struct orinoco_private *priv = netdev_priv(dev); | |
6fe9deb1 | 289 | |
1da177e4 LT |
290 | return &priv->stats; |
291 | } | |
292 | ||
1da177e4 LT |
293 | static void orinoco_set_multicast_list(struct net_device *dev) |
294 | { | |
295 | struct orinoco_private *priv = netdev_priv(dev); | |
296 | unsigned long flags; | |
297 | ||
298 | if (orinoco_lock(priv, &flags) != 0) { | |
299 | printk(KERN_DEBUG "%s: orinoco_set_multicast_list() " | |
300 | "called when hw_unavailable\n", dev->name); | |
301 | return; | |
302 | } | |
303 | ||
304 | __orinoco_set_multicast_list(dev); | |
305 | orinoco_unlock(priv, &flags); | |
306 | } | |
307 | ||
308 | static int orinoco_change_mtu(struct net_device *dev, int new_mtu) | |
309 | { | |
310 | struct orinoco_private *priv = netdev_priv(dev); | |
311 | ||
a94e8427 | 312 | if ((new_mtu < ORINOCO_MIN_MTU) || (new_mtu > ORINOCO_MAX_MTU)) |
1da177e4 LT |
313 | return -EINVAL; |
314 | ||
2c706002 | 315 | /* MTU + encapsulation + header length */ |
a94e8427 DK |
316 | if ((new_mtu + ENCAPS_OVERHEAD + sizeof(struct ieee80211_hdr)) > |
317 | (priv->nicbuf_size - ETH_HLEN)) | |
1da177e4 LT |
318 | return -EINVAL; |
319 | ||
320 | dev->mtu = new_mtu; | |
321 | ||
322 | return 0; | |
323 | } | |
324 | ||
325 | /********************************************************************/ | |
326 | /* Tx path */ | |
327 | /********************************************************************/ | |
328 | ||
329 | static int orinoco_xmit(struct sk_buff *skb, struct net_device *dev) | |
330 | { | |
331 | struct orinoco_private *priv = netdev_priv(dev); | |
332 | struct net_device_stats *stats = &priv->stats; | |
333 | hermes_t *hw = &priv->hw; | |
334 | int err = 0; | |
335 | u16 txfid = priv->txfid; | |
1da177e4 | 336 | struct ethhdr *eh; |
6eecad77 | 337 | int tx_control; |
1da177e4 LT |
338 | unsigned long flags; |
339 | ||
a94e8427 | 340 | if (!netif_running(dev)) { |
1da177e4 LT |
341 | printk(KERN_ERR "%s: Tx on stopped device!\n", |
342 | dev->name); | |
b34b867e | 343 | return NETDEV_TX_BUSY; |
1da177e4 | 344 | } |
6fe9deb1 | 345 | |
1da177e4 | 346 | if (netif_queue_stopped(dev)) { |
6fe9deb1 | 347 | printk(KERN_DEBUG "%s: Tx while transmitter busy!\n", |
1da177e4 | 348 | dev->name); |
b34b867e | 349 | return NETDEV_TX_BUSY; |
1da177e4 | 350 | } |
6fe9deb1 | 351 | |
1da177e4 LT |
352 | if (orinoco_lock(priv, &flags) != 0) { |
353 | printk(KERN_ERR "%s: orinoco_xmit() called while hw_unavailable\n", | |
354 | dev->name); | |
b34b867e | 355 | return NETDEV_TX_BUSY; |
1da177e4 LT |
356 | } |
357 | ||
a94e8427 | 358 | if (!netif_carrier_ok(dev) || (priv->iw_mode == IW_MODE_MONITOR)) { |
1da177e4 | 359 | /* Oops, the firmware hasn't established a connection, |
6fe9deb1 DK |
360 | silently drop the packet (this seems to be the |
361 | safest approach). */ | |
470e2aa6 | 362 | goto drop; |
1da177e4 LT |
363 | } |
364 | ||
8d5be088 | 365 | /* Check packet length */ |
a28dc81d | 366 | if (skb->len < ETH_HLEN) |
470e2aa6 | 367 | goto drop; |
1da177e4 | 368 | |
6eecad77 DK |
369 | tx_control = HERMES_TXCTRL_TX_OK | HERMES_TXCTRL_TX_EX; |
370 | ||
23edcc41 DK |
371 | if (priv->encode_alg == IW_ENCODE_ALG_TKIP) |
372 | tx_control |= (priv->tx_key << HERMES_MIC_KEY_ID_SHIFT) | | |
373 | HERMES_TXCTRL_MIC; | |
374 | ||
6eecad77 DK |
375 | if (priv->has_alt_txcntl) { |
376 | /* WPA enabled firmwares have tx_cntl at the end of | |
377 | * the 802.11 header. So write zeroed descriptor and | |
378 | * 802.11 header at the same time | |
379 | */ | |
380 | char desc[HERMES_802_3_OFFSET]; | |
381 | __le16 *txcntl = (__le16 *) &desc[HERMES_TXCNTL2_OFFSET]; | |
382 | ||
383 | memset(&desc, 0, sizeof(desc)); | |
384 | ||
385 | *txcntl = cpu_to_le16(tx_control); | |
386 | err = hermes_bap_pwrite(hw, USER_BAP, &desc, sizeof(desc), | |
387 | txfid, 0); | |
388 | if (err) { | |
389 | if (net_ratelimit()) | |
390 | printk(KERN_ERR "%s: Error %d writing Tx " | |
391 | "descriptor to BAP\n", dev->name, err); | |
392 | goto busy; | |
393 | } | |
394 | } else { | |
395 | struct hermes_tx_descriptor desc; | |
396 | ||
397 | memset(&desc, 0, sizeof(desc)); | |
398 | ||
399 | desc.tx_control = cpu_to_le16(tx_control); | |
400 | err = hermes_bap_pwrite(hw, USER_BAP, &desc, sizeof(desc), | |
401 | txfid, 0); | |
402 | if (err) { | |
403 | if (net_ratelimit()) | |
404 | printk(KERN_ERR "%s: Error %d writing Tx " | |
405 | "descriptor to BAP\n", dev->name, err); | |
406 | goto busy; | |
407 | } | |
1da177e4 | 408 | |
6eecad77 DK |
409 | /* Clear the 802.11 header and data length fields - some |
410 | * firmwares (e.g. Lucent/Agere 8.xx) appear to get confused | |
411 | * if this isn't done. */ | |
412 | hermes_clear_words(hw, HERMES_DATA0, | |
413 | HERMES_802_3_OFFSET - HERMES_802_11_OFFSET); | |
414 | } | |
1da177e4 | 415 | |
23edcc41 DK |
416 | eh = (struct ethhdr *)skb->data; |
417 | ||
1da177e4 LT |
418 | /* Encapsulate Ethernet-II frames */ |
419 | if (ntohs(eh->h_proto) > ETH_DATA_LEN) { /* Ethernet-II frame */ | |
a28dc81d PR |
420 | struct header_struct { |
421 | struct ethhdr eth; /* 802.3 header */ | |
422 | u8 encap[6]; /* 802.2 header */ | |
423 | } __attribute__ ((packed)) hdr; | |
424 | ||
425 | /* Strip destination and source from the data */ | |
426 | skb_pull(skb, 2 * ETH_ALEN); | |
a28dc81d PR |
427 | |
428 | /* And move them to a separate header */ | |
429 | memcpy(&hdr.eth, eh, 2 * ETH_ALEN); | |
430 | hdr.eth.h_proto = htons(sizeof(encaps_hdr) + skb->len); | |
431 | memcpy(hdr.encap, encaps_hdr, sizeof(encaps_hdr)); | |
432 | ||
23edcc41 DK |
433 | /* Insert the SNAP header */ |
434 | if (skb_headroom(skb) < sizeof(hdr)) { | |
435 | printk(KERN_ERR | |
436 | "%s: Not enough headroom for 802.2 headers %d\n", | |
437 | dev->name, skb_headroom(skb)); | |
438 | goto drop; | |
1da177e4 | 439 | } |
23edcc41 DK |
440 | eh = (struct ethhdr *) skb_push(skb, sizeof(hdr)); |
441 | memcpy(eh, &hdr, sizeof(hdr)); | |
1da177e4 LT |
442 | } |
443 | ||
a28dc81d | 444 | err = hermes_bap_pwrite(hw, USER_BAP, skb->data, skb->len, |
23edcc41 | 445 | txfid, HERMES_802_3_OFFSET); |
1da177e4 LT |
446 | if (err) { |
447 | printk(KERN_ERR "%s: Error %d writing packet to BAP\n", | |
448 | dev->name, err); | |
470e2aa6 | 449 | goto busy; |
1da177e4 LT |
450 | } |
451 | ||
23edcc41 DK |
452 | /* Calculate Michael MIC */ |
453 | if (priv->encode_alg == IW_ENCODE_ALG_TKIP) { | |
454 | u8 mic_buf[MICHAEL_MIC_LEN + 1]; | |
455 | u8 *mic; | |
456 | size_t offset; | |
457 | size_t len; | |
458 | ||
459 | if (skb->len % 2) { | |
460 | /* MIC start is on an odd boundary */ | |
461 | mic_buf[0] = skb->data[skb->len - 1]; | |
462 | mic = &mic_buf[1]; | |
463 | offset = skb->len - 1; | |
464 | len = MICHAEL_MIC_LEN + 1; | |
465 | } else { | |
466 | mic = &mic_buf[0]; | |
467 | offset = skb->len; | |
468 | len = MICHAEL_MIC_LEN; | |
469 | } | |
470 | ||
4adb474b | 471 | orinoco_mic(priv->tx_tfm_mic, |
23edcc41 DK |
472 | priv->tkip_key[priv->tx_key].tx_mic, |
473 | eh->h_dest, eh->h_source, 0 /* priority */, | |
474 | skb->data + ETH_HLEN, skb->len - ETH_HLEN, mic); | |
475 | ||
476 | /* Write the MIC */ | |
477 | err = hermes_bap_pwrite(hw, USER_BAP, &mic_buf[0], len, | |
478 | txfid, HERMES_802_3_OFFSET + offset); | |
479 | if (err) { | |
480 | printk(KERN_ERR "%s: Error %d writing MIC to BAP\n", | |
481 | dev->name, err); | |
482 | goto busy; | |
483 | } | |
484 | } | |
485 | ||
1da177e4 LT |
486 | /* Finally, we actually initiate the send */ |
487 | netif_stop_queue(dev); | |
488 | ||
489 | err = hermes_docmd_wait(hw, HERMES_CMD_TX | HERMES_CMD_RECL, | |
490 | txfid, NULL); | |
491 | if (err) { | |
492 | netif_start_queue(dev); | |
c367c21c AM |
493 | if (net_ratelimit()) |
494 | printk(KERN_ERR "%s: Error %d transmitting packet\n", | |
495 | dev->name, err); | |
470e2aa6 | 496 | goto busy; |
1da177e4 LT |
497 | } |
498 | ||
499 | dev->trans_start = jiffies; | |
23edcc41 | 500 | stats->tx_bytes += HERMES_802_3_OFFSET + skb->len; |
470e2aa6 | 501 | goto ok; |
1da177e4 | 502 | |
470e2aa6 PR |
503 | drop: |
504 | stats->tx_errors++; | |
505 | stats->tx_dropped++; | |
1da177e4 | 506 | |
470e2aa6 PR |
507 | ok: |
508 | orinoco_unlock(priv, &flags); | |
1da177e4 | 509 | dev_kfree_skb(skb); |
b34b867e | 510 | return NETDEV_TX_OK; |
1da177e4 | 511 | |
470e2aa6 | 512 | busy: |
2c1bd260 JB |
513 | if (err == -EIO) |
514 | schedule_work(&priv->reset_work); | |
1da177e4 | 515 | orinoco_unlock(priv, &flags); |
b34b867e | 516 | return NETDEV_TX_BUSY; |
1da177e4 LT |
517 | } |
518 | ||
519 | static void __orinoco_ev_alloc(struct net_device *dev, hermes_t *hw) | |
520 | { | |
521 | struct orinoco_private *priv = netdev_priv(dev); | |
522 | u16 fid = hermes_read_regn(hw, ALLOCFID); | |
523 | ||
524 | if (fid != priv->txfid) { | |
525 | if (fid != DUMMY_FID) | |
526 | printk(KERN_WARNING "%s: Allocate event on unexpected fid (%04X)\n", | |
527 | dev->name, fid); | |
528 | return; | |
529 | } | |
530 | ||
531 | hermes_write_regn(hw, ALLOCFID, DUMMY_FID); | |
532 | } | |
533 | ||
534 | static void __orinoco_ev_tx(struct net_device *dev, hermes_t *hw) | |
535 | { | |
536 | struct orinoco_private *priv = netdev_priv(dev); | |
537 | struct net_device_stats *stats = &priv->stats; | |
538 | ||
539 | stats->tx_packets++; | |
540 | ||
541 | netif_wake_queue(dev); | |
542 | ||
543 | hermes_write_regn(hw, TXCOMPLFID, DUMMY_FID); | |
544 | } | |
545 | ||
546 | static void __orinoco_ev_txexc(struct net_device *dev, hermes_t *hw) | |
547 | { | |
548 | struct orinoco_private *priv = netdev_priv(dev); | |
549 | struct net_device_stats *stats = &priv->stats; | |
550 | u16 fid = hermes_read_regn(hw, TXCOMPLFID); | |
d133ae4c | 551 | u16 status; |
30c2d3b4 | 552 | struct hermes_txexc_data hdr; |
1da177e4 LT |
553 | int err = 0; |
554 | ||
555 | if (fid == DUMMY_FID) | |
556 | return; /* Nothing's really happened */ | |
557 | ||
48ca7038 | 558 | /* Read part of the frame header - we need status and addr1 */ |
95dd91fb | 559 | err = hermes_bap_pread(hw, IRQ_BAP, &hdr, |
30c2d3b4 | 560 | sizeof(struct hermes_txexc_data), |
95dd91fb CH |
561 | fid, 0); |
562 | ||
563 | hermes_write_regn(hw, TXCOMPLFID, DUMMY_FID); | |
564 | stats->tx_errors++; | |
565 | ||
1da177e4 LT |
566 | if (err) { |
567 | printk(KERN_WARNING "%s: Unable to read descriptor on Tx error " | |
568 | "(FID=%04X error %d)\n", | |
569 | dev->name, fid, err); | |
95dd91fb | 570 | return; |
1da177e4 | 571 | } |
6fe9deb1 | 572 | |
95dd91fb CH |
573 | DEBUG(1, "%s: Tx error, err %d (FID=%04X)\n", dev->name, |
574 | err, fid); | |
6fe9deb1 | 575 | |
95dd91fb CH |
576 | /* We produce a TXDROP event only for retry or lifetime |
577 | * exceeded, because that's the only status that really mean | |
578 | * that this particular node went away. | |
579 | * Other errors means that *we* screwed up. - Jean II */ | |
30c2d3b4 | 580 | status = le16_to_cpu(hdr.desc.status); |
d133ae4c | 581 | if (status & (HERMES_TXSTAT_RETRYERR | HERMES_TXSTAT_AGEDERR)) { |
95dd91fb CH |
582 | union iwreq_data wrqu; |
583 | ||
584 | /* Copy 802.11 dest address. | |
585 | * We use the 802.11 header because the frame may | |
586 | * not be 802.3 or may be mangled... | |
587 | * In Ad-Hoc mode, it will be the node address. | |
588 | * In managed mode, it will be most likely the AP addr | |
589 | * User space will figure out how to convert it to | |
590 | * whatever it needs (IP address or else). | |
591 | * - Jean II */ | |
592 | memcpy(wrqu.addr.sa_data, hdr.addr1, ETH_ALEN); | |
593 | wrqu.addr.sa_family = ARPHRD_ETHER; | |
594 | ||
595 | /* Send event to user space */ | |
596 | wireless_send_event(dev, IWEVTXDROP, &wrqu, NULL); | |
597 | } | |
1da177e4 LT |
598 | |
599 | netif_wake_queue(dev); | |
1da177e4 LT |
600 | } |
601 | ||
602 | static void orinoco_tx_timeout(struct net_device *dev) | |
603 | { | |
604 | struct orinoco_private *priv = netdev_priv(dev); | |
605 | struct net_device_stats *stats = &priv->stats; | |
606 | struct hermes *hw = &priv->hw; | |
607 | ||
608 | printk(KERN_WARNING "%s: Tx timeout! " | |
609 | "ALLOCFID=%04x, TXCOMPLFID=%04x, EVSTAT=%04x\n", | |
610 | dev->name, hermes_read_regn(hw, ALLOCFID), | |
611 | hermes_read_regn(hw, TXCOMPLFID), hermes_read_regn(hw, EVSTAT)); | |
612 | ||
613 | stats->tx_errors++; | |
614 | ||
615 | schedule_work(&priv->reset_work); | |
616 | } | |
617 | ||
618 | /********************************************************************/ | |
619 | /* Rx path (data frames) */ | |
620 | /********************************************************************/ | |
621 | ||
622 | /* Does the frame have a SNAP header indicating it should be | |
623 | * de-encapsulated to Ethernet-II? */ | |
624 | static inline int is_ethersnap(void *_hdr) | |
625 | { | |
626 | u8 *hdr = _hdr; | |
627 | ||
628 | /* We de-encapsulate all packets which, a) have SNAP headers | |
629 | * (i.e. SSAP=DSAP=0xaa and CTRL=0x3 in the 802.2 LLC header | |
630 | * and where b) the OUI of the SNAP header is 00:00:00 or | |
631 | * 00:00:f8 - we need both because different APs appear to use | |
632 | * different OUIs for some reason */ | |
633 | return (memcmp(hdr, &encaps_hdr, 5) == 0) | |
a94e8427 | 634 | && ((hdr[5] == 0x00) || (hdr[5] == 0xf8)); |
1da177e4 LT |
635 | } |
636 | ||
637 | static inline void orinoco_spy_gather(struct net_device *dev, u_char *mac, | |
638 | int level, int noise) | |
639 | { | |
343c686c PR |
640 | struct iw_quality wstats; |
641 | wstats.level = level - 0x95; | |
642 | wstats.noise = noise - 0x95; | |
643 | wstats.qual = (level > noise) ? (level - noise) : 0; | |
f941f859 | 644 | wstats.updated = IW_QUAL_ALL_UPDATED | IW_QUAL_DBM; |
343c686c PR |
645 | /* Update spy records */ |
646 | wireless_spy_update(dev, mac, &wstats); | |
1da177e4 LT |
647 | } |
648 | ||
649 | static void orinoco_stat_gather(struct net_device *dev, | |
650 | struct sk_buff *skb, | |
651 | struct hermes_rx_descriptor *desc) | |
652 | { | |
653 | struct orinoco_private *priv = netdev_priv(dev); | |
654 | ||
655 | /* Using spy support with lots of Rx packets, like in an | |
656 | * infrastructure (AP), will really slow down everything, because | |
657 | * the MAC address must be compared to each entry of the spy list. | |
658 | * If the user really asks for it (set some address in the | |
659 | * spy list), we do it, but he will pay the price. | |
660 | * Note that to get here, you need both WIRELESS_SPY | |
661 | * compiled in AND some addresses in the list !!! | |
662 | */ | |
663 | /* Note : gcc will optimise the whole section away if | |
664 | * WIRELESS_SPY is not defined... - Jean II */ | |
665 | if (SPY_NUMBER(priv)) { | |
98e399f8 | 666 | orinoco_spy_gather(dev, skb_mac_header(skb) + ETH_ALEN, |
1da177e4 LT |
667 | desc->signal, desc->silence); |
668 | } | |
669 | } | |
670 | ||
98c4cae1 CH |
671 | /* |
672 | * orinoco_rx_monitor - handle received monitor frames. | |
673 | * | |
674 | * Arguments: | |
675 | * dev network device | |
676 | * rxfid received FID | |
677 | * desc rx descriptor of the frame | |
678 | * | |
679 | * Call context: interrupt | |
680 | */ | |
681 | static void orinoco_rx_monitor(struct net_device *dev, u16 rxfid, | |
682 | struct hermes_rx_descriptor *desc) | |
683 | { | |
684 | u32 hdrlen = 30; /* return full header by default */ | |
685 | u32 datalen = 0; | |
686 | u16 fc; | |
687 | int err; | |
688 | int len; | |
689 | struct sk_buff *skb; | |
690 | struct orinoco_private *priv = netdev_priv(dev); | |
691 | struct net_device_stats *stats = &priv->stats; | |
692 | hermes_t *hw = &priv->hw; | |
693 | ||
694 | len = le16_to_cpu(desc->data_len); | |
695 | ||
696 | /* Determine the size of the header and the data */ | |
697 | fc = le16_to_cpu(desc->frame_ctl); | |
698 | switch (fc & IEEE80211_FCTL_FTYPE) { | |
699 | case IEEE80211_FTYPE_DATA: | |
700 | if ((fc & IEEE80211_FCTL_TODS) | |
701 | && (fc & IEEE80211_FCTL_FROMDS)) | |
702 | hdrlen = 30; | |
703 | else | |
704 | hdrlen = 24; | |
705 | datalen = len; | |
706 | break; | |
707 | case IEEE80211_FTYPE_MGMT: | |
708 | hdrlen = 24; | |
709 | datalen = len; | |
710 | break; | |
711 | case IEEE80211_FTYPE_CTL: | |
712 | switch (fc & IEEE80211_FCTL_STYPE) { | |
713 | case IEEE80211_STYPE_PSPOLL: | |
714 | case IEEE80211_STYPE_RTS: | |
715 | case IEEE80211_STYPE_CFEND: | |
716 | case IEEE80211_STYPE_CFENDACK: | |
717 | hdrlen = 16; | |
718 | break; | |
719 | case IEEE80211_STYPE_CTS: | |
720 | case IEEE80211_STYPE_ACK: | |
721 | hdrlen = 10; | |
722 | break; | |
723 | } | |
724 | break; | |
725 | default: | |
726 | /* Unknown frame type */ | |
727 | break; | |
728 | } | |
729 | ||
730 | /* sanity check the length */ | |
2c706002 | 731 | if (datalen > IEEE80211_MAX_DATA_LEN + 12) { |
98c4cae1 CH |
732 | printk(KERN_DEBUG "%s: oversized monitor frame, " |
733 | "data length = %d\n", dev->name, datalen); | |
98c4cae1 CH |
734 | stats->rx_length_errors++; |
735 | goto update_stats; | |
736 | } | |
737 | ||
738 | skb = dev_alloc_skb(hdrlen + datalen); | |
739 | if (!skb) { | |
740 | printk(KERN_WARNING "%s: Cannot allocate skb for monitor frame\n", | |
741 | dev->name); | |
bb6e093d | 742 | goto update_stats; |
98c4cae1 CH |
743 | } |
744 | ||
745 | /* Copy the 802.11 header to the skb */ | |
746 | memcpy(skb_put(skb, hdrlen), &(desc->frame_ctl), hdrlen); | |
459a98ed | 747 | skb_reset_mac_header(skb); |
98c4cae1 CH |
748 | |
749 | /* If any, copy the data from the card to the skb */ | |
750 | if (datalen > 0) { | |
751 | err = hermes_bap_pread(hw, IRQ_BAP, skb_put(skb, datalen), | |
752 | ALIGN(datalen, 2), rxfid, | |
753 | HERMES_802_2_OFFSET); | |
754 | if (err) { | |
755 | printk(KERN_ERR "%s: error %d reading monitor frame\n", | |
756 | dev->name, err); | |
757 | goto drop; | |
758 | } | |
759 | } | |
760 | ||
761 | skb->dev = dev; | |
762 | skb->ip_summed = CHECKSUM_NONE; | |
763 | skb->pkt_type = PACKET_OTHERHOST; | |
c1b4aa3f | 764 | skb->protocol = cpu_to_be16(ETH_P_802_2); |
6fe9deb1 | 765 | |
98c4cae1 CH |
766 | stats->rx_packets++; |
767 | stats->rx_bytes += skb->len; | |
768 | ||
769 | netif_rx(skb); | |
770 | return; | |
771 | ||
772 | drop: | |
773 | dev_kfree_skb_irq(skb); | |
774 | update_stats: | |
775 | stats->rx_errors++; | |
776 | stats->rx_dropped++; | |
777 | } | |
778 | ||
1da177e4 LT |
779 | static void __orinoco_ev_rx(struct net_device *dev, hermes_t *hw) |
780 | { | |
781 | struct orinoco_private *priv = netdev_priv(dev); | |
782 | struct net_device_stats *stats = &priv->stats; | |
783 | struct iw_statistics *wstats = &priv->wstats; | |
784 | struct sk_buff *skb = NULL; | |
31afcef3 | 785 | u16 rxfid, status; |
8f2abf44 | 786 | int length; |
31afcef3 DK |
787 | struct hermes_rx_descriptor *desc; |
788 | struct orinoco_rx_data *rx_data; | |
1da177e4 LT |
789 | int err; |
790 | ||
31afcef3 DK |
791 | desc = kmalloc(sizeof(*desc), GFP_ATOMIC); |
792 | if (!desc) { | |
793 | printk(KERN_WARNING | |
794 | "%s: Can't allocate space for RX descriptor\n", | |
795 | dev->name); | |
796 | goto update_stats; | |
797 | } | |
798 | ||
1da177e4 LT |
799 | rxfid = hermes_read_regn(hw, RXFID); |
800 | ||
31afcef3 | 801 | err = hermes_bap_pread(hw, IRQ_BAP, desc, sizeof(*desc), |
1da177e4 LT |
802 | rxfid, 0); |
803 | if (err) { | |
804 | printk(KERN_ERR "%s: error %d reading Rx descriptor. " | |
805 | "Frame dropped.\n", dev->name, err); | |
98c4cae1 | 806 | goto update_stats; |
1da177e4 LT |
807 | } |
808 | ||
31afcef3 | 809 | status = le16_to_cpu(desc->status); |
1da177e4 | 810 | |
98c4cae1 CH |
811 | if (status & HERMES_RXSTAT_BADCRC) { |
812 | DEBUG(1, "%s: Bad CRC on Rx. Frame dropped.\n", | |
813 | dev->name); | |
814 | stats->rx_crc_errors++; | |
815 | goto update_stats; | |
1da177e4 LT |
816 | } |
817 | ||
98c4cae1 CH |
818 | /* Handle frames in monitor mode */ |
819 | if (priv->iw_mode == IW_MODE_MONITOR) { | |
31afcef3 DK |
820 | orinoco_rx_monitor(dev, rxfid, desc); |
821 | goto out; | |
98c4cae1 | 822 | } |
1da177e4 | 823 | |
98c4cae1 CH |
824 | if (status & HERMES_RXSTAT_UNDECRYPTABLE) { |
825 | DEBUG(1, "%s: Undecryptable frame on Rx. Frame dropped.\n", | |
826 | dev->name); | |
827 | wstats->discard.code++; | |
828 | goto update_stats; | |
1da177e4 LT |
829 | } |
830 | ||
31afcef3 | 831 | length = le16_to_cpu(desc->data_len); |
8f2abf44 | 832 | |
1da177e4 LT |
833 | /* Sanity checks */ |
834 | if (length < 3) { /* No for even an 802.2 LLC header */ | |
835 | /* At least on Symbol firmware with PCF we get quite a | |
6fe9deb1 DK |
836 | lot of these legitimately - Poll frames with no |
837 | data. */ | |
31afcef3 | 838 | goto out; |
1da177e4 | 839 | } |
2c706002 | 840 | if (length > IEEE80211_MAX_DATA_LEN) { |
1da177e4 LT |
841 | printk(KERN_WARNING "%s: Oversized frame received (%d bytes)\n", |
842 | dev->name, length); | |
843 | stats->rx_length_errors++; | |
98c4cae1 | 844 | goto update_stats; |
1da177e4 LT |
845 | } |
846 | ||
23edcc41 DK |
847 | /* Payload size does not include Michael MIC. Increase payload |
848 | * size to read it together with the data. */ | |
849 | if (status & HERMES_RXSTAT_MIC) | |
850 | length += MICHAEL_MIC_LEN; | |
851 | ||
1da177e4 LT |
852 | /* We need space for the packet data itself, plus an ethernet |
853 | header, plus 2 bytes so we can align the IP header on a | |
854 | 32bit boundary, plus 1 byte so we can read in odd length | |
855 | packets from the card, which has an IO granularity of 16 | |
6fe9deb1 | 856 | bits */ |
1da177e4 LT |
857 | skb = dev_alloc_skb(length+ETH_HLEN+2+1); |
858 | if (!skb) { | |
859 | printk(KERN_WARNING "%s: Can't allocate skb for Rx\n", | |
860 | dev->name); | |
98c4cae1 | 861 | goto update_stats; |
1da177e4 LT |
862 | } |
863 | ||
8f2abf44 CH |
864 | /* We'll prepend the header, so reserve space for it. The worst |
865 | case is no decapsulation, when 802.3 header is prepended and | |
866 | nothing is removed. 2 is for aligning the IP header. */ | |
867 | skb_reserve(skb, ETH_HLEN + 2); | |
868 | ||
869 | err = hermes_bap_pread(hw, IRQ_BAP, skb_put(skb, length), | |
870 | ALIGN(length, 2), rxfid, | |
871 | HERMES_802_2_OFFSET); | |
872 | if (err) { | |
873 | printk(KERN_ERR "%s: error %d reading frame. " | |
874 | "Frame dropped.\n", dev->name, err); | |
8f2abf44 CH |
875 | goto drop; |
876 | } | |
1da177e4 | 877 | |
31afcef3 DK |
878 | /* Add desc and skb to rx queue */ |
879 | rx_data = kzalloc(sizeof(*rx_data), GFP_ATOMIC); | |
880 | if (!rx_data) { | |
881 | printk(KERN_WARNING "%s: Can't allocate RX packet\n", | |
882 | dev->name); | |
883 | goto drop; | |
884 | } | |
885 | rx_data->desc = desc; | |
886 | rx_data->skb = skb; | |
887 | list_add_tail(&rx_data->list, &priv->rx_list); | |
888 | tasklet_schedule(&priv->rx_tasklet); | |
889 | ||
890 | return; | |
891 | ||
892 | drop: | |
893 | dev_kfree_skb_irq(skb); | |
894 | update_stats: | |
895 | stats->rx_errors++; | |
896 | stats->rx_dropped++; | |
897 | out: | |
898 | kfree(desc); | |
899 | } | |
900 | ||
901 | static void orinoco_rx(struct net_device *dev, | |
902 | struct hermes_rx_descriptor *desc, | |
903 | struct sk_buff *skb) | |
904 | { | |
905 | struct orinoco_private *priv = netdev_priv(dev); | |
906 | struct net_device_stats *stats = &priv->stats; | |
907 | u16 status, fc; | |
908 | int length; | |
909 | struct ethhdr *hdr; | |
910 | ||
911 | status = le16_to_cpu(desc->status); | |
912 | length = le16_to_cpu(desc->data_len); | |
913 | fc = le16_to_cpu(desc->frame_ctl); | |
914 | ||
23edcc41 DK |
915 | /* Calculate and check MIC */ |
916 | if (status & HERMES_RXSTAT_MIC) { | |
917 | int key_id = ((status & HERMES_RXSTAT_MIC_KEY_ID) >> | |
918 | HERMES_MIC_KEY_ID_SHIFT); | |
919 | u8 mic[MICHAEL_MIC_LEN]; | |
920 | u8 *rxmic; | |
921 | u8 *src = (fc & IEEE80211_FCTL_FROMDS) ? | |
922 | desc->addr3 : desc->addr2; | |
923 | ||
924 | /* Extract Michael MIC from payload */ | |
925 | rxmic = skb->data + skb->len - MICHAEL_MIC_LEN; | |
926 | ||
927 | skb_trim(skb, skb->len - MICHAEL_MIC_LEN); | |
928 | length -= MICHAEL_MIC_LEN; | |
929 | ||
4adb474b | 930 | orinoco_mic(priv->rx_tfm_mic, |
23edcc41 DK |
931 | priv->tkip_key[key_id].rx_mic, |
932 | desc->addr1, | |
933 | src, | |
934 | 0, /* priority or QoS? */ | |
935 | skb->data, | |
936 | skb->len, | |
937 | &mic[0]); | |
938 | ||
939 | if (memcmp(mic, rxmic, | |
940 | MICHAEL_MIC_LEN)) { | |
941 | union iwreq_data wrqu; | |
942 | struct iw_michaelmicfailure wxmic; | |
23edcc41 DK |
943 | |
944 | printk(KERN_WARNING "%s: " | |
e174961c | 945 | "Invalid Michael MIC in data frame from %pM, " |
23edcc41 | 946 | "using key %i\n", |
e174961c | 947 | dev->name, src, key_id); |
23edcc41 DK |
948 | |
949 | /* TODO: update stats */ | |
950 | ||
951 | /* Notify userspace */ | |
952 | memset(&wxmic, 0, sizeof(wxmic)); | |
953 | wxmic.flags = key_id & IW_MICFAILURE_KEY_ID; | |
954 | wxmic.flags |= (desc->addr1[0] & 1) ? | |
955 | IW_MICFAILURE_GROUP : IW_MICFAILURE_PAIRWISE; | |
956 | wxmic.src_addr.sa_family = ARPHRD_ETHER; | |
957 | memcpy(wxmic.src_addr.sa_data, src, ETH_ALEN); | |
958 | ||
959 | (void) orinoco_hw_get_tkip_iv(priv, key_id, | |
960 | &wxmic.tsc[0]); | |
961 | ||
962 | memset(&wrqu, 0, sizeof(wrqu)); | |
963 | wrqu.data.length = sizeof(wxmic); | |
964 | wireless_send_event(dev, IWEVMICHAELMICFAILURE, &wrqu, | |
965 | (char *) &wxmic); | |
966 | ||
967 | goto drop; | |
968 | } | |
969 | } | |
970 | ||
1da177e4 LT |
971 | /* Handle decapsulation |
972 | * In most cases, the firmware tell us about SNAP frames. | |
973 | * For some reason, the SNAP frames sent by LinkSys APs | |
974 | * are not properly recognised by most firmwares. | |
975 | * So, check ourselves */ | |
8f2abf44 CH |
976 | if (length >= ENCAPS_OVERHEAD && |
977 | (((status & HERMES_RXSTAT_MSGTYPE) == HERMES_RXSTAT_1042) || | |
978 | ((status & HERMES_RXSTAT_MSGTYPE) == HERMES_RXSTAT_TUNNEL) || | |
979 | is_ethersnap(skb->data))) { | |
1da177e4 LT |
980 | /* These indicate a SNAP within 802.2 LLC within |
981 | 802.11 frame which we'll need to de-encapsulate to | |
982 | the original EthernetII frame. */ | |
b2f30a0a DK |
983 | hdr = (struct ethhdr *)skb_push(skb, |
984 | ETH_HLEN - ENCAPS_OVERHEAD); | |
1da177e4 | 985 | } else { |
8f2abf44 CH |
986 | /* 802.3 frame - prepend 802.3 header as is */ |
987 | hdr = (struct ethhdr *)skb_push(skb, ETH_HLEN); | |
988 | hdr->h_proto = htons(length); | |
1da177e4 | 989 | } |
31afcef3 | 990 | memcpy(hdr->h_dest, desc->addr1, ETH_ALEN); |
8f2abf44 | 991 | if (fc & IEEE80211_FCTL_FROMDS) |
31afcef3 | 992 | memcpy(hdr->h_source, desc->addr3, ETH_ALEN); |
8f2abf44 | 993 | else |
31afcef3 | 994 | memcpy(hdr->h_source, desc->addr2, ETH_ALEN); |
1da177e4 | 995 | |
1da177e4 LT |
996 | skb->protocol = eth_type_trans(skb, dev); |
997 | skb->ip_summed = CHECKSUM_NONE; | |
8f2abf44 CH |
998 | if (fc & IEEE80211_FCTL_TODS) |
999 | skb->pkt_type = PACKET_OTHERHOST; | |
6fe9deb1 | 1000 | |
1da177e4 | 1001 | /* Process the wireless stats if needed */ |
31afcef3 | 1002 | orinoco_stat_gather(dev, skb, desc); |
1da177e4 LT |
1003 | |
1004 | /* Pass the packet to the networking stack */ | |
1005 | netif_rx(skb); | |
1006 | stats->rx_packets++; | |
1007 | stats->rx_bytes += length; | |
1008 | ||
1009 | return; | |
23edcc41 DK |
1010 | |
1011 | drop: | |
1012 | dev_kfree_skb(skb); | |
1013 | stats->rx_errors++; | |
1014 | stats->rx_dropped++; | |
31afcef3 | 1015 | } |
1da177e4 | 1016 | |
31afcef3 DK |
1017 | static void orinoco_rx_isr_tasklet(unsigned long data) |
1018 | { | |
1019 | struct net_device *dev = (struct net_device *) data; | |
1020 | struct orinoco_private *priv = netdev_priv(dev); | |
1021 | struct orinoco_rx_data *rx_data, *temp; | |
1022 | struct hermes_rx_descriptor *desc; | |
1023 | struct sk_buff *skb; | |
20953ad6 DK |
1024 | unsigned long flags; |
1025 | ||
1026 | /* orinoco_rx requires the driver lock, and we also need to | |
1027 | * protect priv->rx_list, so just hold the lock over the | |
1028 | * lot. | |
1029 | * | |
1030 | * If orinoco_lock fails, we've unplugged the card. In this | |
1031 | * case just abort. */ | |
1032 | if (orinoco_lock(priv, &flags) != 0) | |
1033 | return; | |
31afcef3 DK |
1034 | |
1035 | /* extract desc and skb from queue */ | |
1036 | list_for_each_entry_safe(rx_data, temp, &priv->rx_list, list) { | |
1037 | desc = rx_data->desc; | |
1038 | skb = rx_data->skb; | |
1039 | list_del(&rx_data->list); | |
1040 | kfree(rx_data); | |
1041 | ||
1042 | orinoco_rx(dev, desc, skb); | |
1043 | ||
1044 | kfree(desc); | |
1045 | } | |
20953ad6 DK |
1046 | |
1047 | orinoco_unlock(priv, &flags); | |
1da177e4 LT |
1048 | } |
1049 | ||
1050 | /********************************************************************/ | |
1051 | /* Rx path (info frames) */ | |
1052 | /********************************************************************/ | |
1053 | ||
1054 | static void print_linkstatus(struct net_device *dev, u16 status) | |
1055 | { | |
2131266d | 1056 | char *s; |
1da177e4 LT |
1057 | |
1058 | if (suppress_linkstatus) | |
1059 | return; | |
1060 | ||
1061 | switch (status) { | |
1062 | case HERMES_LINKSTATUS_NOT_CONNECTED: | |
1063 | s = "Not Connected"; | |
1064 | break; | |
1065 | case HERMES_LINKSTATUS_CONNECTED: | |
1066 | s = "Connected"; | |
1067 | break; | |
1068 | case HERMES_LINKSTATUS_DISCONNECTED: | |
1069 | s = "Disconnected"; | |
1070 | break; | |
1071 | case HERMES_LINKSTATUS_AP_CHANGE: | |
1072 | s = "AP Changed"; | |
1073 | break; | |
1074 | case HERMES_LINKSTATUS_AP_OUT_OF_RANGE: | |
1075 | s = "AP Out of Range"; | |
1076 | break; | |
1077 | case HERMES_LINKSTATUS_AP_IN_RANGE: | |
1078 | s = "AP In Range"; | |
1079 | break; | |
1080 | case HERMES_LINKSTATUS_ASSOC_FAILED: | |
1081 | s = "Association Failed"; | |
1082 | break; | |
1083 | default: | |
1084 | s = "UNKNOWN"; | |
1085 | } | |
6fe9deb1 | 1086 | |
11eaea41 | 1087 | printk(KERN_DEBUG "%s: New link status: %s (%04x)\n", |
1da177e4 LT |
1088 | dev->name, s, status); |
1089 | } | |
1090 | ||
16739b06 | 1091 | /* Search scan results for requested BSSID, join it if found */ |
c4028958 | 1092 | static void orinoco_join_ap(struct work_struct *work) |
16739b06 | 1093 | { |
c4028958 DH |
1094 | struct orinoco_private *priv = |
1095 | container_of(work, struct orinoco_private, join_work); | |
1096 | struct net_device *dev = priv->ndev; | |
16739b06 CH |
1097 | struct hermes *hw = &priv->hw; |
1098 | int err; | |
1099 | unsigned long flags; | |
1100 | struct join_req { | |
1101 | u8 bssid[ETH_ALEN]; | |
d133ae4c | 1102 | __le16 channel; |
16739b06 CH |
1103 | } __attribute__ ((packed)) req; |
1104 | const int atom_len = offsetof(struct prism2_scan_apinfo, atim); | |
c89cc225 | 1105 | struct prism2_scan_apinfo *atom = NULL; |
16739b06 | 1106 | int offset = 4; |
c89cc225 | 1107 | int found = 0; |
16739b06 CH |
1108 | u8 *buf; |
1109 | u16 len; | |
1110 | ||
1111 | /* Allocate buffer for scan results */ | |
1112 | buf = kmalloc(MAX_SCAN_LEN, GFP_KERNEL); | |
a94e8427 | 1113 | if (!buf) |
16739b06 CH |
1114 | return; |
1115 | ||
1116 | if (orinoco_lock(priv, &flags) != 0) | |
f3cb4cc1 | 1117 | goto fail_lock; |
16739b06 CH |
1118 | |
1119 | /* Sanity checks in case user changed something in the meantime */ | |
a94e8427 | 1120 | if (!priv->bssid_fixed) |
16739b06 CH |
1121 | goto out; |
1122 | ||
1123 | if (strlen(priv->desired_essid) == 0) | |
1124 | goto out; | |
1125 | ||
1126 | /* Read scan results from the firmware */ | |
1127 | err = hermes_read_ltv(hw, USER_BAP, | |
1128 | HERMES_RID_SCANRESULTSTABLE, | |
1129 | MAX_SCAN_LEN, &len, buf); | |
1130 | if (err) { | |
1131 | printk(KERN_ERR "%s: Cannot read scan results\n", | |
1132 | dev->name); | |
1133 | goto out; | |
1134 | } | |
1135 | ||
1136 | len = HERMES_RECLEN_TO_BYTES(len); | |
1137 | ||
1138 | /* Go through the scan results looking for the channel of the AP | |
1139 | * we were requested to join */ | |
1140 | for (; offset + atom_len <= len; offset += atom_len) { | |
1141 | atom = (struct prism2_scan_apinfo *) (buf + offset); | |
c89cc225 PR |
1142 | if (memcmp(&atom->bssid, priv->desired_bssid, ETH_ALEN) == 0) { |
1143 | found = 1; | |
1144 | break; | |
1145 | } | |
16739b06 CH |
1146 | } |
1147 | ||
a94e8427 | 1148 | if (!found) { |
c89cc225 PR |
1149 | DEBUG(1, "%s: Requested AP not found in scan results\n", |
1150 | dev->name); | |
1151 | goto out; | |
1152 | } | |
16739b06 | 1153 | |
16739b06 CH |
1154 | memcpy(req.bssid, priv->desired_bssid, ETH_ALEN); |
1155 | req.channel = atom->channel; /* both are little-endian */ | |
1156 | err = HERMES_WRITE_RECORD(hw, USER_BAP, HERMES_RID_CNFJOINREQUEST, | |
1157 | &req); | |
1158 | if (err) | |
1159 | printk(KERN_ERR "%s: Error issuing join request\n", dev->name); | |
1160 | ||
1161 | out: | |
16739b06 | 1162 | orinoco_unlock(priv, &flags); |
f3cb4cc1 PR |
1163 | |
1164 | fail_lock: | |
1165 | kfree(buf); | |
16739b06 CH |
1166 | } |
1167 | ||
95dd91fb | 1168 | /* Send new BSSID to userspace */ |
6cd90b1c | 1169 | static void orinoco_send_bssid_wevent(struct orinoco_private *priv) |
95dd91fb | 1170 | { |
c4028958 | 1171 | struct net_device *dev = priv->ndev; |
95dd91fb CH |
1172 | struct hermes *hw = &priv->hw; |
1173 | union iwreq_data wrqu; | |
1174 | int err; | |
95dd91fb | 1175 | |
499b702a | 1176 | err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CURRENTBSSID, |
95dd91fb CH |
1177 | ETH_ALEN, NULL, wrqu.ap_addr.sa_data); |
1178 | if (err != 0) | |
6cd90b1c | 1179 | return; |
95dd91fb CH |
1180 | |
1181 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
1182 | ||
1183 | /* Send event to user space */ | |
1184 | wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL); | |
6cd90b1c DK |
1185 | } |
1186 | ||
06009fda DK |
1187 | static void orinoco_send_assocreqie_wevent(struct orinoco_private *priv) |
1188 | { | |
1189 | struct net_device *dev = priv->ndev; | |
1190 | struct hermes *hw = &priv->hw; | |
1191 | union iwreq_data wrqu; | |
1192 | int err; | |
1193 | u8 buf[88]; | |
1194 | u8 *ie; | |
1195 | ||
1196 | if (!priv->has_wpa) | |
1197 | return; | |
1198 | ||
499b702a | 1199 | err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CURRENT_ASSOC_REQ_INFO, |
06009fda DK |
1200 | sizeof(buf), NULL, &buf); |
1201 | if (err != 0) | |
1202 | return; | |
1203 | ||
1204 | ie = orinoco_get_wpa_ie(buf, sizeof(buf)); | |
1205 | if (ie) { | |
1206 | int rem = sizeof(buf) - (ie - &buf[0]); | |
1207 | wrqu.data.length = ie[1] + 2; | |
1208 | if (wrqu.data.length > rem) | |
1209 | wrqu.data.length = rem; | |
1210 | ||
1211 | if (wrqu.data.length) | |
1212 | /* Send event to user space */ | |
1213 | wireless_send_event(dev, IWEVASSOCREQIE, &wrqu, ie); | |
1214 | } | |
1215 | } | |
1216 | ||
1217 | static void orinoco_send_assocrespie_wevent(struct orinoco_private *priv) | |
1218 | { | |
1219 | struct net_device *dev = priv->ndev; | |
1220 | struct hermes *hw = &priv->hw; | |
1221 | union iwreq_data wrqu; | |
1222 | int err; | |
1223 | u8 buf[88]; /* TODO: verify max size or IW_GENERIC_IE_MAX */ | |
1224 | u8 *ie; | |
1225 | ||
1226 | if (!priv->has_wpa) | |
1227 | return; | |
1228 | ||
499b702a | 1229 | err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CURRENT_ASSOC_RESP_INFO, |
06009fda DK |
1230 | sizeof(buf), NULL, &buf); |
1231 | if (err != 0) | |
1232 | return; | |
1233 | ||
1234 | ie = orinoco_get_wpa_ie(buf, sizeof(buf)); | |
1235 | if (ie) { | |
1236 | int rem = sizeof(buf) - (ie - &buf[0]); | |
1237 | wrqu.data.length = ie[1] + 2; | |
1238 | if (wrqu.data.length > rem) | |
1239 | wrqu.data.length = rem; | |
1240 | ||
1241 | if (wrqu.data.length) | |
1242 | /* Send event to user space */ | |
1243 | wireless_send_event(dev, IWEVASSOCRESPIE, &wrqu, ie); | |
1244 | } | |
1245 | } | |
1246 | ||
6cd90b1c DK |
1247 | static void orinoco_send_wevents(struct work_struct *work) |
1248 | { | |
1249 | struct orinoco_private *priv = | |
1250 | container_of(work, struct orinoco_private, wevent_work); | |
1251 | unsigned long flags; | |
1252 | ||
1253 | if (orinoco_lock(priv, &flags) != 0) | |
1254 | return; | |
1255 | ||
06009fda DK |
1256 | orinoco_send_assocreqie_wevent(priv); |
1257 | orinoco_send_assocrespie_wevent(priv); | |
6cd90b1c | 1258 | orinoco_send_bssid_wevent(priv); |
8aeabc37 | 1259 | |
95dd91fb CH |
1260 | orinoco_unlock(priv, &flags); |
1261 | } | |
1262 | ||
1da177e4 LT |
1263 | static void __orinoco_ev_info(struct net_device *dev, hermes_t *hw) |
1264 | { | |
1265 | struct orinoco_private *priv = netdev_priv(dev); | |
1266 | u16 infofid; | |
1267 | struct { | |
d133ae4c PR |
1268 | __le16 len; |
1269 | __le16 type; | |
1da177e4 LT |
1270 | } __attribute__ ((packed)) info; |
1271 | int len, type; | |
1272 | int err; | |
1273 | ||
1274 | /* This is an answer to an INQUIRE command that we did earlier, | |
1275 | * or an information "event" generated by the card | |
1276 | * The controller return to us a pseudo frame containing | |
1277 | * the information in question - Jean II */ | |
1278 | infofid = hermes_read_regn(hw, INFOFID); | |
1279 | ||
1280 | /* Read the info frame header - don't try too hard */ | |
1281 | err = hermes_bap_pread(hw, IRQ_BAP, &info, sizeof(info), | |
1282 | infofid, 0); | |
1283 | if (err) { | |
1284 | printk(KERN_ERR "%s: error %d reading info frame. " | |
1285 | "Frame dropped.\n", dev->name, err); | |
1286 | return; | |
1287 | } | |
6fe9deb1 | 1288 | |
1da177e4 LT |
1289 | len = HERMES_RECLEN_TO_BYTES(le16_to_cpu(info.len)); |
1290 | type = le16_to_cpu(info.type); | |
1291 | ||
1292 | switch (type) { | |
1293 | case HERMES_INQ_TALLIES: { | |
1294 | struct hermes_tallies_frame tallies; | |
1295 | struct iw_statistics *wstats = &priv->wstats; | |
6fe9deb1 | 1296 | |
1da177e4 LT |
1297 | if (len > sizeof(tallies)) { |
1298 | printk(KERN_WARNING "%s: Tallies frame too long (%d bytes)\n", | |
1299 | dev->name, len); | |
1300 | len = sizeof(tallies); | |
1301 | } | |
6fe9deb1 | 1302 | |
84d8a2fb CH |
1303 | err = hermes_bap_pread(hw, IRQ_BAP, &tallies, len, |
1304 | infofid, sizeof(info)); | |
1305 | if (err) | |
1306 | break; | |
6fe9deb1 | 1307 | |
1da177e4 LT |
1308 | /* Increment our various counters */ |
1309 | /* wstats->discard.nwid - no wrong BSSID stuff */ | |
1310 | wstats->discard.code += | |
1311 | le16_to_cpu(tallies.RxWEPUndecryptable); | |
6fe9deb1 | 1312 | if (len == sizeof(tallies)) |
1da177e4 LT |
1313 | wstats->discard.code += |
1314 | le16_to_cpu(tallies.RxDiscards_WEPICVError) + | |
1315 | le16_to_cpu(tallies.RxDiscards_WEPExcluded); | |
1316 | wstats->discard.misc += | |
1317 | le16_to_cpu(tallies.TxDiscardsWrongSA); | |
1318 | wstats->discard.fragment += | |
1319 | le16_to_cpu(tallies.RxMsgInBadMsgFragments); | |
1320 | wstats->discard.retries += | |
1321 | le16_to_cpu(tallies.TxRetryLimitExceeded); | |
1322 | /* wstats->miss.beacon - no match */ | |
1323 | } | |
1324 | break; | |
1325 | case HERMES_INQ_LINKSTATUS: { | |
1326 | struct hermes_linkstatus linkstatus; | |
1327 | u16 newstatus; | |
1328 | int connected; | |
1329 | ||
8f2abf44 CH |
1330 | if (priv->iw_mode == IW_MODE_MONITOR) |
1331 | break; | |
1332 | ||
1da177e4 LT |
1333 | if (len != sizeof(linkstatus)) { |
1334 | printk(KERN_WARNING "%s: Unexpected size for linkstatus frame (%d bytes)\n", | |
1335 | dev->name, len); | |
1336 | break; | |
1337 | } | |
1338 | ||
84d8a2fb CH |
1339 | err = hermes_bap_pread(hw, IRQ_BAP, &linkstatus, len, |
1340 | infofid, sizeof(info)); | |
1341 | if (err) | |
1342 | break; | |
1da177e4 LT |
1343 | newstatus = le16_to_cpu(linkstatus.linkstatus); |
1344 | ||
95dd91fb CH |
1345 | /* Symbol firmware uses "out of range" to signal that |
1346 | * the hostscan frame can be requested. */ | |
1347 | if (newstatus == HERMES_LINKSTATUS_AP_OUT_OF_RANGE && | |
1348 | priv->firmware_type == FIRMWARE_TYPE_SYMBOL && | |
1349 | priv->has_hostscan && priv->scan_inprogress) { | |
1350 | hermes_inquire(hw, HERMES_INQ_HOSTSCAN_SYMBOL); | |
1351 | break; | |
1352 | } | |
1353 | ||
1da177e4 LT |
1354 | connected = (newstatus == HERMES_LINKSTATUS_CONNECTED) |
1355 | || (newstatus == HERMES_LINKSTATUS_AP_CHANGE) | |
1356 | || (newstatus == HERMES_LINKSTATUS_AP_IN_RANGE); | |
1357 | ||
1358 | if (connected) | |
1359 | netif_carrier_on(dev); | |
7bb7c3a3 | 1360 | else if (!ignore_disconnect) |
1da177e4 LT |
1361 | netif_carrier_off(dev); |
1362 | ||
95dd91fb CH |
1363 | if (newstatus != priv->last_linkstatus) { |
1364 | priv->last_linkstatus = newstatus; | |
1da177e4 | 1365 | print_linkstatus(dev, newstatus); |
95dd91fb CH |
1366 | /* The info frame contains only one word which is the |
1367 | * status (see hermes.h). The status is pretty boring | |
1368 | * in itself, that's why we export the new BSSID... | |
1369 | * Jean II */ | |
1370 | schedule_work(&priv->wevent_work); | |
1371 | } | |
1372 | } | |
1373 | break; | |
1374 | case HERMES_INQ_SCAN: | |
1375 | if (!priv->scan_inprogress && priv->bssid_fixed && | |
1376 | priv->firmware_type == FIRMWARE_TYPE_INTERSIL) { | |
1377 | schedule_work(&priv->join_work); | |
1378 | break; | |
1379 | } | |
1380 | /* fall through */ | |
1381 | case HERMES_INQ_HOSTSCAN: | |
1382 | case HERMES_INQ_HOSTSCAN_SYMBOL: { | |
1383 | /* Result of a scanning. Contains information about | |
1384 | * cells in the vicinity - Jean II */ | |
1385 | union iwreq_data wrqu; | |
1386 | unsigned char *buf; | |
1387 | ||
1e3428e9 DW |
1388 | /* Scan is no longer in progress */ |
1389 | priv->scan_inprogress = 0; | |
1390 | ||
95dd91fb CH |
1391 | /* Sanity check */ |
1392 | if (len > 4096) { | |
1393 | printk(KERN_WARNING "%s: Scan results too large (%d bytes)\n", | |
1394 | dev->name, len); | |
1395 | break; | |
1396 | } | |
1397 | ||
95dd91fb CH |
1398 | /* Allocate buffer for results */ |
1399 | buf = kmalloc(len, GFP_ATOMIC); | |
1400 | if (buf == NULL) | |
1401 | /* No memory, so can't printk()... */ | |
1402 | break; | |
1403 | ||
1404 | /* Read scan data */ | |
1405 | err = hermes_bap_pread(hw, IRQ_BAP, (void *) buf, len, | |
1406 | infofid, sizeof(info)); | |
708218b0 PR |
1407 | if (err) { |
1408 | kfree(buf); | |
95dd91fb | 1409 | break; |
708218b0 | 1410 | } |
1da177e4 | 1411 | |
95dd91fb CH |
1412 | #ifdef ORINOCO_DEBUG |
1413 | { | |
1414 | int i; | |
1415 | printk(KERN_DEBUG "Scan result [%02X", buf[0]); | |
a94e8427 | 1416 | for (i = 1; i < (len * 2); i++) |
95dd91fb CH |
1417 | printk(":%02X", buf[i]); |
1418 | printk("]\n"); | |
1419 | } | |
1420 | #endif /* ORINOCO_DEBUG */ | |
1421 | ||
aea48b15 | 1422 | if (orinoco_process_scan_results(priv, buf, len) == 0) { |
1e3428e9 DW |
1423 | /* Send an empty event to user space. |
1424 | * We don't send the received data on the event because | |
1425 | * it would require us to do complex transcoding, and | |
1426 | * we want to minimise the work done in the irq handler | |
1427 | * Use a request to extract the data - Jean II */ | |
1428 | wrqu.data.length = 0; | |
1429 | wrqu.data.flags = 0; | |
1430 | wireless_send_event(dev, SIOCGIWSCAN, &wrqu, NULL); | |
1431 | } | |
1432 | kfree(buf); | |
1da177e4 LT |
1433 | } |
1434 | break; | |
01632fa4 DK |
1435 | case HERMES_INQ_CHANNELINFO: |
1436 | { | |
1437 | struct agere_ext_scan_info *bss; | |
1438 | ||
1439 | if (!priv->scan_inprogress) { | |
1440 | printk(KERN_DEBUG "%s: Got chaninfo without scan, " | |
1441 | "len=%d\n", dev->name, len); | |
1442 | break; | |
1443 | } | |
1444 | ||
1445 | /* An empty result indicates that the scan is complete */ | |
1446 | if (len == 0) { | |
1447 | union iwreq_data wrqu; | |
1448 | ||
1449 | /* Scan is no longer in progress */ | |
1450 | priv->scan_inprogress = 0; | |
1451 | ||
1452 | wrqu.data.length = 0; | |
1453 | wrqu.data.flags = 0; | |
1454 | wireless_send_event(dev, SIOCGIWSCAN, &wrqu, NULL); | |
1455 | break; | |
1456 | } | |
1457 | ||
1458 | /* Sanity check */ | |
1459 | else if (len > sizeof(*bss)) { | |
1460 | printk(KERN_WARNING | |
1461 | "%s: Ext scan results too large (%d bytes). " | |
1462 | "Truncating results to %zd bytes.\n", | |
1463 | dev->name, len, sizeof(*bss)); | |
1464 | len = sizeof(*bss); | |
1465 | } else if (len < (offsetof(struct agere_ext_scan_info, | |
1466 | data) + 2)) { | |
1467 | /* Drop this result now so we don't have to | |
1468 | * keep checking later */ | |
1469 | printk(KERN_WARNING | |
1470 | "%s: Ext scan results too short (%d bytes)\n", | |
1471 | dev->name, len); | |
1472 | break; | |
1473 | } | |
1474 | ||
1475 | bss = kmalloc(sizeof(*bss), GFP_ATOMIC); | |
1476 | if (bss == NULL) | |
1477 | break; | |
1478 | ||
1479 | /* Read scan data */ | |
1480 | err = hermes_bap_pread(hw, IRQ_BAP, (void *) bss, len, | |
1481 | infofid, sizeof(info)); | |
1482 | if (err) { | |
1483 | kfree(bss); | |
1484 | break; | |
1485 | } | |
1486 | ||
1487 | orinoco_add_ext_scan_result(priv, bss); | |
1488 | ||
1489 | kfree(bss); | |
1490 | break; | |
1491 | } | |
95dd91fb CH |
1492 | case HERMES_INQ_SEC_STAT_AGERE: |
1493 | /* Security status (Agere specific) */ | |
1494 | /* Ignore this frame for now */ | |
1495 | if (priv->firmware_type == FIRMWARE_TYPE_AGERE) | |
1496 | break; | |
1497 | /* fall through */ | |
1da177e4 LT |
1498 | default: |
1499 | printk(KERN_DEBUG "%s: Unknown information frame received: " | |
1500 | "type 0x%04x, length %d\n", dev->name, type, len); | |
1501 | /* We don't actually do anything about it */ | |
1502 | break; | |
1503 | } | |
1504 | } | |
1505 | ||
1506 | static void __orinoco_ev_infdrop(struct net_device *dev, hermes_t *hw) | |
1507 | { | |
1508 | if (net_ratelimit()) | |
1509 | printk(KERN_DEBUG "%s: Information frame lost.\n", dev->name); | |
1510 | } | |
1511 | ||
1512 | /********************************************************************/ | |
1513 | /* Internal hardware control routines */ | |
1514 | /********************************************************************/ | |
1515 | ||
1516 | int __orinoco_up(struct net_device *dev) | |
1517 | { | |
1518 | struct orinoco_private *priv = netdev_priv(dev); | |
1519 | struct hermes *hw = &priv->hw; | |
1520 | int err; | |
1521 | ||
84d8a2fb CH |
1522 | netif_carrier_off(dev); /* just to make sure */ |
1523 | ||
1da177e4 LT |
1524 | err = __orinoco_program_rids(dev); |
1525 | if (err) { | |
1526 | printk(KERN_ERR "%s: Error %d configuring card\n", | |
1527 | dev->name, err); | |
1528 | return err; | |
1529 | } | |
1530 | ||
1531 | /* Fire things up again */ | |
1532 | hermes_set_irqmask(hw, ORINOCO_INTEN); | |
1533 | err = hermes_enable_port(hw, 0); | |
1534 | if (err) { | |
1535 | printk(KERN_ERR "%s: Error %d enabling MAC port\n", | |
1536 | dev->name, err); | |
1537 | return err; | |
1538 | } | |
1539 | ||
1540 | netif_start_queue(dev); | |
1541 | ||
1542 | return 0; | |
1543 | } | |
2131266d | 1544 | EXPORT_SYMBOL(__orinoco_up); |
1da177e4 LT |
1545 | |
1546 | int __orinoco_down(struct net_device *dev) | |
1547 | { | |
1548 | struct orinoco_private *priv = netdev_priv(dev); | |
1549 | struct hermes *hw = &priv->hw; | |
1550 | int err; | |
1551 | ||
1552 | netif_stop_queue(dev); | |
1553 | ||
a94e8427 DK |
1554 | if (!priv->hw_unavailable) { |
1555 | if (!priv->broken_disableport) { | |
1da177e4 LT |
1556 | err = hermes_disable_port(hw, 0); |
1557 | if (err) { | |
1558 | /* Some firmwares (e.g. Intersil 1.3.x) seem | |
1559 | * to have problems disabling the port, oh | |
1560 | * well, too bad. */ | |
1561 | printk(KERN_WARNING "%s: Error %d disabling MAC port\n", | |
1562 | dev->name, err); | |
1563 | priv->broken_disableport = 1; | |
1564 | } | |
1565 | } | |
1566 | hermes_set_irqmask(hw, 0); | |
1567 | hermes_write_regn(hw, EVACK, 0xffff); | |
1568 | } | |
6fe9deb1 | 1569 | |
1da177e4 LT |
1570 | /* firmware will have to reassociate */ |
1571 | netif_carrier_off(dev); | |
1572 | priv->last_linkstatus = 0xffff; | |
1573 | ||
1574 | return 0; | |
1575 | } | |
2131266d | 1576 | EXPORT_SYMBOL(__orinoco_down); |
1da177e4 | 1577 | |
37a6c611 | 1578 | static int orinoco_allocate_fid(struct net_device *dev) |
1da177e4 LT |
1579 | { |
1580 | struct orinoco_private *priv = netdev_priv(dev); | |
1581 | struct hermes *hw = &priv->hw; | |
1582 | int err; | |
1583 | ||
1da177e4 | 1584 | err = hermes_allocate(hw, priv->nicbuf_size, &priv->txfid); |
b24d4582 | 1585 | if (err == -EIO && priv->nicbuf_size > TX_NICBUF_SIZE_BUG) { |
1da177e4 | 1586 | /* Try workaround for old Symbol firmware bug */ |
1da177e4 LT |
1587 | priv->nicbuf_size = TX_NICBUF_SIZE_BUG; |
1588 | err = hermes_allocate(hw, priv->nicbuf_size, &priv->txfid); | |
2131266d DK |
1589 | |
1590 | printk(KERN_WARNING "%s: firmware ALLOC bug detected " | |
1591 | "(old Symbol firmware?). Work around %s\n", | |
1592 | dev->name, err ? "failed!" : "ok."); | |
1da177e4 LT |
1593 | } |
1594 | ||
1595 | return err; | |
1596 | } | |
1597 | ||
37a6c611 PR |
1598 | int orinoco_reinit_firmware(struct net_device *dev) |
1599 | { | |
1600 | struct orinoco_private *priv = netdev_priv(dev); | |
1601 | struct hermes *hw = &priv->hw; | |
1602 | int err; | |
1603 | ||
1604 | err = hermes_init(hw); | |
0df6cbb7 AB |
1605 | if (priv->do_fw_download && !err) { |
1606 | err = orinoco_download(priv); | |
1607 | if (err) | |
1608 | priv->do_fw_download = 0; | |
1609 | } | |
37a6c611 PR |
1610 | if (!err) |
1611 | err = orinoco_allocate_fid(dev); | |
1612 | ||
1613 | return err; | |
1614 | } | |
2131266d | 1615 | EXPORT_SYMBOL(orinoco_reinit_firmware); |
37a6c611 | 1616 | |
cb1576a8 | 1617 | int __orinoco_program_rids(struct net_device *dev) |
1da177e4 LT |
1618 | { |
1619 | struct orinoco_private *priv = netdev_priv(dev); | |
1620 | hermes_t *hw = &priv->hw; | |
1621 | int err; | |
1622 | struct hermes_idstring idbuf; | |
1623 | ||
1624 | /* Set the MAC address */ | |
1625 | err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFOWNMACADDR, | |
1626 | HERMES_BYTES_TO_RECLEN(ETH_ALEN), dev->dev_addr); | |
1627 | if (err) { | |
1628 | printk(KERN_ERR "%s: Error %d setting MAC address\n", | |
1629 | dev->name, err); | |
1630 | return err; | |
1631 | } | |
1632 | ||
1633 | /* Set up the link mode */ | |
1634 | err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFPORTTYPE, | |
1635 | priv->port_type); | |
1636 | if (err) { | |
1637 | printk(KERN_ERR "%s: Error %d setting port type\n", | |
1638 | dev->name, err); | |
1639 | return err; | |
1640 | } | |
1641 | /* Set the channel/frequency */ | |
d51d8b1f DG |
1642 | if (priv->channel != 0 && priv->iw_mode != IW_MODE_INFRA) { |
1643 | err = hermes_write_wordrec(hw, USER_BAP, | |
1644 | HERMES_RID_CNFOWNCHANNEL, | |
1645 | priv->channel); | |
1646 | if (err) { | |
1647 | printk(KERN_ERR "%s: Error %d setting channel %d\n", | |
1648 | dev->name, err, priv->channel); | |
1649 | return err; | |
1650 | } | |
1da177e4 LT |
1651 | } |
1652 | ||
1653 | if (priv->has_ibss) { | |
1654 | u16 createibss; | |
1655 | ||
1656 | if ((strlen(priv->desired_essid) == 0) && (priv->createibss)) { | |
1657 | printk(KERN_WARNING "%s: This firmware requires an " | |
1658 | "ESSID in IBSS-Ad-Hoc mode.\n", dev->name); | |
1659 | /* With wvlan_cs, in this case, we would crash. | |
1660 | * hopefully, this driver will behave better... | |
1661 | * Jean II */ | |
1662 | createibss = 0; | |
1663 | } else { | |
1664 | createibss = priv->createibss; | |
1665 | } | |
6fe9deb1 | 1666 | |
1da177e4 LT |
1667 | err = hermes_write_wordrec(hw, USER_BAP, |
1668 | HERMES_RID_CNFCREATEIBSS, | |
1669 | createibss); | |
1670 | if (err) { | |
1671 | printk(KERN_ERR "%s: Error %d setting CREATEIBSS\n", | |
1672 | dev->name, err); | |
1673 | return err; | |
1674 | } | |
1675 | } | |
1676 | ||
16739b06 CH |
1677 | /* Set the desired BSSID */ |
1678 | err = __orinoco_hw_set_wap(priv); | |
1679 | if (err) { | |
1680 | printk(KERN_ERR "%s: Error %d setting AP address\n", | |
1681 | dev->name, err); | |
1682 | return err; | |
1683 | } | |
1da177e4 LT |
1684 | /* Set the desired ESSID */ |
1685 | idbuf.len = cpu_to_le16(strlen(priv->desired_essid)); | |
1686 | memcpy(&idbuf.val, priv->desired_essid, sizeof(idbuf.val)); | |
1687 | /* WinXP wants partner to configure OWNSSID even in IBSS mode. (jimc) */ | |
1688 | err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFOWNSSID, | |
b2f30a0a DK |
1689 | HERMES_BYTES_TO_RECLEN(strlen(priv->desired_essid)+2), |
1690 | &idbuf); | |
1da177e4 LT |
1691 | if (err) { |
1692 | printk(KERN_ERR "%s: Error %d setting OWNSSID\n", | |
1693 | dev->name, err); | |
1694 | return err; | |
1695 | } | |
1696 | err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFDESIREDSSID, | |
b2f30a0a DK |
1697 | HERMES_BYTES_TO_RECLEN(strlen(priv->desired_essid)+2), |
1698 | &idbuf); | |
1da177e4 LT |
1699 | if (err) { |
1700 | printk(KERN_ERR "%s: Error %d setting DESIREDSSID\n", | |
1701 | dev->name, err); | |
1702 | return err; | |
1703 | } | |
1704 | ||
1705 | /* Set the station name */ | |
1706 | idbuf.len = cpu_to_le16(strlen(priv->nick)); | |
1707 | memcpy(&idbuf.val, priv->nick, sizeof(idbuf.val)); | |
1708 | err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFOWNNAME, | |
1709 | HERMES_BYTES_TO_RECLEN(strlen(priv->nick)+2), | |
1710 | &idbuf); | |
1711 | if (err) { | |
1712 | printk(KERN_ERR "%s: Error %d setting nickname\n", | |
1713 | dev->name, err); | |
1714 | return err; | |
1715 | } | |
1716 | ||
1717 | /* Set AP density */ | |
1718 | if (priv->has_sensitivity) { | |
1719 | err = hermes_write_wordrec(hw, USER_BAP, | |
1720 | HERMES_RID_CNFSYSTEMSCALE, | |
1721 | priv->ap_density); | |
1722 | if (err) { | |
b2f30a0a | 1723 | printk(KERN_WARNING "%s: Error %d setting SYSTEMSCALE. " |
1da177e4 LT |
1724 | "Disabling sensitivity control\n", |
1725 | dev->name, err); | |
1726 | ||
1727 | priv->has_sensitivity = 0; | |
1728 | } | |
1729 | } | |
1730 | ||
1731 | /* Set RTS threshold */ | |
1732 | err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFRTSTHRESHOLD, | |
1733 | priv->rts_thresh); | |
1734 | if (err) { | |
1735 | printk(KERN_ERR "%s: Error %d setting RTS threshold\n", | |
1736 | dev->name, err); | |
1737 | return err; | |
1738 | } | |
1739 | ||
1740 | /* Set fragmentation threshold or MWO robustness */ | |
1741 | if (priv->has_mwo) | |
1742 | err = hermes_write_wordrec(hw, USER_BAP, | |
1743 | HERMES_RID_CNFMWOROBUST_AGERE, | |
1744 | priv->mwo_robust); | |
1745 | else | |
1746 | err = hermes_write_wordrec(hw, USER_BAP, | |
1747 | HERMES_RID_CNFFRAGMENTATIONTHRESHOLD, | |
1748 | priv->frag_thresh); | |
1749 | if (err) { | |
1750 | printk(KERN_ERR "%s: Error %d setting fragmentation\n", | |
1751 | dev->name, err); | |
1752 | return err; | |
1753 | } | |
1754 | ||
1755 | /* Set bitrate */ | |
1756 | err = __orinoco_hw_set_bitrate(priv); | |
1757 | if (err) { | |
1758 | printk(KERN_ERR "%s: Error %d setting bitrate\n", | |
1759 | dev->name, err); | |
1760 | return err; | |
1761 | } | |
1762 | ||
1763 | /* Set power management */ | |
1764 | if (priv->has_pm) { | |
1765 | err = hermes_write_wordrec(hw, USER_BAP, | |
1766 | HERMES_RID_CNFPMENABLED, | |
1767 | priv->pm_on); | |
1768 | if (err) { | |
1769 | printk(KERN_ERR "%s: Error %d setting up PM\n", | |
1770 | dev->name, err); | |
1771 | return err; | |
1772 | } | |
1773 | ||
1774 | err = hermes_write_wordrec(hw, USER_BAP, | |
1775 | HERMES_RID_CNFMULTICASTRECEIVE, | |
1776 | priv->pm_mcast); | |
1777 | if (err) { | |
1778 | printk(KERN_ERR "%s: Error %d setting up PM\n", | |
1779 | dev->name, err); | |
1780 | return err; | |
1781 | } | |
1782 | err = hermes_write_wordrec(hw, USER_BAP, | |
1783 | HERMES_RID_CNFMAXSLEEPDURATION, | |
1784 | priv->pm_period); | |
1785 | if (err) { | |
1786 | printk(KERN_ERR "%s: Error %d setting up PM\n", | |
1787 | dev->name, err); | |
1788 | return err; | |
1789 | } | |
1790 | err = hermes_write_wordrec(hw, USER_BAP, | |
1791 | HERMES_RID_CNFPMHOLDOVERDURATION, | |
1792 | priv->pm_timeout); | |
1793 | if (err) { | |
1794 | printk(KERN_ERR "%s: Error %d setting up PM\n", | |
1795 | dev->name, err); | |
1796 | return err; | |
1797 | } | |
1798 | } | |
1799 | ||
1800 | /* Set preamble - only for Symbol so far... */ | |
1801 | if (priv->has_preamble) { | |
1802 | err = hermes_write_wordrec(hw, USER_BAP, | |
1803 | HERMES_RID_CNFPREAMBLE_SYMBOL, | |
1804 | priv->preamble); | |
1805 | if (err) { | |
1806 | printk(KERN_ERR "%s: Error %d setting preamble\n", | |
1807 | dev->name, err); | |
1808 | return err; | |
1809 | } | |
1810 | } | |
1811 | ||
1812 | /* Set up encryption */ | |
d03032af DK |
1813 | if (priv->has_wep || priv->has_wpa) { |
1814 | err = __orinoco_hw_setup_enc(priv); | |
1da177e4 | 1815 | if (err) { |
d03032af | 1816 | printk(KERN_ERR "%s: Error %d activating encryption\n", |
1da177e4 LT |
1817 | dev->name, err); |
1818 | return err; | |
1819 | } | |
1820 | } | |
1821 | ||
98c4cae1 CH |
1822 | if (priv->iw_mode == IW_MODE_MONITOR) { |
1823 | /* Enable monitor mode */ | |
1824 | dev->type = ARPHRD_IEEE80211; | |
6fe9deb1 | 1825 | err = hermes_docmd_wait(hw, HERMES_CMD_TEST | |
98c4cae1 CH |
1826 | HERMES_TEST_MONITOR, 0, NULL); |
1827 | } else { | |
1828 | /* Disable monitor mode */ | |
1829 | dev->type = ARPHRD_ETHER; | |
1830 | err = hermes_docmd_wait(hw, HERMES_CMD_TEST | | |
1831 | HERMES_TEST_STOP, 0, NULL); | |
1832 | } | |
1833 | if (err) | |
1834 | return err; | |
1835 | ||
1da177e4 LT |
1836 | /* Set promiscuity / multicast*/ |
1837 | priv->promiscuous = 0; | |
1838 | priv->mc_count = 0; | |
932ff279 HX |
1839 | |
1840 | /* FIXME: what about netif_tx_lock */ | |
1841 | __orinoco_set_multicast_list(dev); | |
1da177e4 LT |
1842 | |
1843 | return 0; | |
1844 | } | |
1845 | ||
5865d015 DK |
1846 | /* FIXME: return int? */ |
1847 | static void | |
1848 | __orinoco_set_multicast_list(struct net_device *dev) | |
1849 | { | |
1850 | struct orinoco_private *priv = netdev_priv(dev); | |
1851 | int err = 0; | |
1852 | int promisc, mc_count; | |
1853 | ||
1854 | /* The Hermes doesn't seem to have an allmulti mode, so we go | |
1855 | * into promiscuous mode and let the upper levels deal. */ | |
1856 | if ((dev->flags & IFF_PROMISC) || (dev->flags & IFF_ALLMULTI) || | |
1857 | (dev->mc_count > MAX_MULTICAST(priv))) { | |
1858 | promisc = 1; | |
1859 | mc_count = 0; | |
1860 | } else { | |
1861 | promisc = 0; | |
1862 | mc_count = dev->mc_count; | |
1863 | } | |
1864 | ||
1865 | err = __orinoco_hw_set_multicast_list(priv, dev->mc_list, mc_count, | |
1866 | promisc); | |
1da177e4 LT |
1867 | } |
1868 | ||
1da177e4 LT |
1869 | /* This must be called from user context, without locks held - use |
1870 | * schedule_work() */ | |
cb1576a8 | 1871 | void orinoco_reset(struct work_struct *work) |
1da177e4 | 1872 | { |
c4028958 DH |
1873 | struct orinoco_private *priv = |
1874 | container_of(work, struct orinoco_private, reset_work); | |
1875 | struct net_device *dev = priv->ndev; | |
1da177e4 | 1876 | struct hermes *hw = &priv->hw; |
8551cb98 | 1877 | int err; |
1da177e4 LT |
1878 | unsigned long flags; |
1879 | ||
1880 | if (orinoco_lock(priv, &flags) != 0) | |
1881 | /* When the hardware becomes available again, whatever | |
1882 | * detects that is responsible for re-initializing | |
1883 | * it. So no need for anything further */ | |
1884 | return; | |
1885 | ||
1886 | netif_stop_queue(dev); | |
1887 | ||
1888 | /* Shut off interrupts. Depending on what state the hardware | |
1889 | * is in, this might not work, but we'll try anyway */ | |
1890 | hermes_set_irqmask(hw, 0); | |
1891 | hermes_write_regn(hw, EVACK, 0xffff); | |
1892 | ||
1893 | priv->hw_unavailable++; | |
1894 | priv->last_linkstatus = 0xffff; /* firmware will have to reassociate */ | |
1895 | netif_carrier_off(dev); | |
1896 | ||
1897 | orinoco_unlock(priv, &flags); | |
1898 | ||
6fe9deb1 | 1899 | /* Scanning support: Cleanup of driver struct */ |
1e3428e9 | 1900 | orinoco_clear_scan_results(priv, 0); |
95dd91fb CH |
1901 | priv->scan_inprogress = 0; |
1902 | ||
8551cb98 | 1903 | if (priv->hard_reset) { |
1da177e4 | 1904 | err = (*priv->hard_reset)(priv); |
8551cb98 CH |
1905 | if (err) { |
1906 | printk(KERN_ERR "%s: orinoco_reset: Error %d " | |
1907 | "performing hard reset\n", dev->name, err); | |
1908 | goto disable; | |
1909 | } | |
1da177e4 LT |
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); | |
8551cb98 | 1916 | goto disable; |
1da177e4 LT |
1917 | } |
1918 | ||
b2f30a0a DK |
1919 | /* This has to be called from user context */ |
1920 | spin_lock_irq(&priv->lock); | |
1da177e4 LT |
1921 | |
1922 | priv->hw_unavailable--; | |
1923 | ||
1924 | /* priv->open or priv->hw_unavailable might have changed while | |
1925 | * we dropped the lock */ | |
a94e8427 | 1926 | if (priv->open && (!priv->hw_unavailable)) { |
1da177e4 LT |
1927 | err = __orinoco_up(dev); |
1928 | if (err) { | |
1929 | printk(KERN_ERR "%s: orinoco_reset: Error %d reenabling card\n", | |
1930 | dev->name, err); | |
1931 | } else | |
1932 | dev->trans_start = jiffies; | |
1933 | } | |
1934 | ||
1935 | spin_unlock_irq(&priv->lock); | |
1936 | ||
1937 | return; | |
8551cb98 CH |
1938 | disable: |
1939 | hermes_set_irqmask(hw, 0); | |
1940 | netif_device_detach(dev); | |
1941 | printk(KERN_ERR "%s: Device has been disabled!\n", dev->name); | |
1da177e4 LT |
1942 | } |
1943 | ||
1944 | /********************************************************************/ | |
1945 | /* Interrupt handler */ | |
1946 | /********************************************************************/ | |
1947 | ||
1948 | static void __orinoco_ev_tick(struct net_device *dev, hermes_t *hw) | |
1949 | { | |
1950 | printk(KERN_DEBUG "%s: TICK\n", dev->name); | |
1951 | } | |
1952 | ||
1953 | static void __orinoco_ev_wterr(struct net_device *dev, hermes_t *hw) | |
1954 | { | |
1955 | /* This seems to happen a fair bit under load, but ignoring it | |
1956 | seems to work fine...*/ | |
1957 | printk(KERN_DEBUG "%s: MAC controller error (WTERR). Ignoring.\n", | |
1958 | dev->name); | |
1959 | } | |
1960 | ||
7d12e780 | 1961 | irqreturn_t orinoco_interrupt(int irq, void *dev_id) |
1da177e4 | 1962 | { |
c31f28e7 | 1963 | struct net_device *dev = dev_id; |
1da177e4 LT |
1964 | struct orinoco_private *priv = netdev_priv(dev); |
1965 | hermes_t *hw = &priv->hw; | |
1966 | int count = MAX_IRQLOOPS_PER_IRQ; | |
1967 | u16 evstat, events; | |
2131266d DK |
1968 | /* These are used to detect a runaway interrupt situation. |
1969 | * | |
1970 | * If we get more than MAX_IRQLOOPS_PER_JIFFY iterations in a jiffy, | |
1971 | * we panic and shut down the hardware | |
1972 | */ | |
1973 | /* jiffies value the last time we were called */ | |
1974 | static int last_irq_jiffy; /* = 0 */ | |
1975 | static int loops_this_jiffy; /* = 0 */ | |
1da177e4 LT |
1976 | unsigned long flags; |
1977 | ||
1978 | if (orinoco_lock(priv, &flags) != 0) { | |
1979 | /* If hw is unavailable - we don't know if the irq was | |
1980 | * for us or not */ | |
1981 | return IRQ_HANDLED; | |
1982 | } | |
1983 | ||
1984 | evstat = hermes_read_regn(hw, EVSTAT); | |
1985 | events = evstat & hw->inten; | |
a94e8427 | 1986 | if (!events) { |
1da177e4 LT |
1987 | orinoco_unlock(priv, &flags); |
1988 | return IRQ_NONE; | |
1989 | } | |
6fe9deb1 | 1990 | |
1da177e4 LT |
1991 | if (jiffies != last_irq_jiffy) |
1992 | loops_this_jiffy = 0; | |
1993 | last_irq_jiffy = jiffies; | |
1994 | ||
1995 | while (events && count--) { | |
1996 | if (++loops_this_jiffy > MAX_IRQLOOPS_PER_JIFFY) { | |
1997 | printk(KERN_WARNING "%s: IRQ handler is looping too " | |
1998 | "much! Resetting.\n", dev->name); | |
1999 | /* Disable interrupts for now */ | |
2000 | hermes_set_irqmask(hw, 0); | |
2001 | schedule_work(&priv->reset_work); | |
2002 | break; | |
2003 | } | |
2004 | ||
2005 | /* Check the card hasn't been removed */ | |
a94e8427 | 2006 | if (!hermes_present(hw)) { |
1da177e4 LT |
2007 | DEBUG(0, "orinoco_interrupt(): card removed\n"); |
2008 | break; | |
2009 | } | |
2010 | ||
2011 | if (events & HERMES_EV_TICK) | |
2012 | __orinoco_ev_tick(dev, hw); | |
2013 | if (events & HERMES_EV_WTERR) | |
2014 | __orinoco_ev_wterr(dev, hw); | |
2015 | if (events & HERMES_EV_INFDROP) | |
2016 | __orinoco_ev_infdrop(dev, hw); | |
2017 | if (events & HERMES_EV_INFO) | |
2018 | __orinoco_ev_info(dev, hw); | |
2019 | if (events & HERMES_EV_RX) | |
2020 | __orinoco_ev_rx(dev, hw); | |
2021 | if (events & HERMES_EV_TXEXC) | |
2022 | __orinoco_ev_txexc(dev, hw); | |
2023 | if (events & HERMES_EV_TX) | |
2024 | __orinoco_ev_tx(dev, hw); | |
2025 | if (events & HERMES_EV_ALLOC) | |
2026 | __orinoco_ev_alloc(dev, hw); | |
6fe9deb1 | 2027 | |
84d8a2fb | 2028 | hermes_write_regn(hw, EVACK, evstat); |
1da177e4 LT |
2029 | |
2030 | evstat = hermes_read_regn(hw, EVSTAT); | |
2031 | events = evstat & hw->inten; | |
2032 | }; | |
2033 | ||
2034 | orinoco_unlock(priv, &flags); | |
2035 | return IRQ_HANDLED; | |
2036 | } | |
2131266d | 2037 | EXPORT_SYMBOL(orinoco_interrupt); |
1da177e4 | 2038 | |
39d1ffee DK |
2039 | /********************************************************************/ |
2040 | /* Power management */ | |
2041 | /********************************************************************/ | |
2042 | #if defined(CONFIG_PM_SLEEP) && !defined(CONFIG_HERMES_CACHE_FW_ON_INIT) | |
2043 | static int orinoco_pm_notifier(struct notifier_block *notifier, | |
2044 | unsigned long pm_event, | |
2045 | void *unused) | |
2046 | { | |
2047 | struct orinoco_private *priv = container_of(notifier, | |
2048 | struct orinoco_private, | |
2049 | pm_notifier); | |
2050 | ||
2051 | /* All we need to do is cache the firmware before suspend, and | |
2052 | * release it when we come out. | |
2053 | * | |
2054 | * Only need to do this if we're downloading firmware. */ | |
2055 | if (!priv->do_fw_download) | |
2056 | return NOTIFY_DONE; | |
2057 | ||
2058 | switch (pm_event) { | |
2059 | case PM_HIBERNATION_PREPARE: | |
2060 | case PM_SUSPEND_PREPARE: | |
2061 | orinoco_cache_fw(priv, 0); | |
2062 | break; | |
2063 | ||
2064 | case PM_POST_RESTORE: | |
2065 | /* Restore from hibernation failed. We need to clean | |
2066 | * up in exactly the same way, so fall through. */ | |
2067 | case PM_POST_HIBERNATION: | |
2068 | case PM_POST_SUSPEND: | |
2069 | orinoco_uncache_fw(priv); | |
2070 | break; | |
2071 | ||
2072 | case PM_RESTORE_PREPARE: | |
2073 | default: | |
2074 | break; | |
2075 | } | |
2076 | ||
2077 | return NOTIFY_DONE; | |
2078 | } | |
f11c179e DM |
2079 | |
2080 | static void orinoco_register_pm_notifier(struct orinoco_private *priv) | |
2081 | { | |
2082 | priv->pm_notifier.notifier_call = orinoco_pm_notifier; | |
2083 | register_pm_notifier(&priv->pm_notifier); | |
2084 | } | |
2085 | ||
2086 | static void orinoco_unregister_pm_notifier(struct orinoco_private *priv) | |
2087 | { | |
2088 | unregister_pm_notifier(&priv->pm_notifier); | |
2089 | } | |
39d1ffee | 2090 | #else /* !PM_SLEEP || HERMES_CACHE_FW_ON_INIT */ |
f11c179e DM |
2091 | #define orinoco_register_pm_notifier(priv) do { } while(0) |
2092 | #define orinoco_unregister_pm_notifier(priv) do { } while(0) | |
39d1ffee DK |
2093 | #endif |
2094 | ||
1da177e4 LT |
2095 | /********************************************************************/ |
2096 | /* Initialization */ | |
2097 | /********************************************************************/ | |
2098 | ||
2099 | struct comp_id { | |
2100 | u16 id, variant, major, minor; | |
2101 | } __attribute__ ((packed)); | |
2102 | ||
2103 | static inline fwtype_t determine_firmware_type(struct comp_id *nic_id) | |
2104 | { | |
2105 | if (nic_id->id < 0x8000) | |
2106 | return FIRMWARE_TYPE_AGERE; | |
2107 | else if (nic_id->id == 0x8000 && nic_id->major == 0) | |
2108 | return FIRMWARE_TYPE_SYMBOL; | |
2109 | else | |
2110 | return FIRMWARE_TYPE_INTERSIL; | |
2111 | } | |
2112 | ||
2113 | /* Set priv->firmware type, determine firmware properties */ | |
2114 | static int determine_firmware(struct net_device *dev) | |
2115 | { | |
2116 | struct orinoco_private *priv = netdev_priv(dev); | |
2117 | hermes_t *hw = &priv->hw; | |
2118 | int err; | |
2119 | struct comp_id nic_id, sta_id; | |
2120 | unsigned int firmver; | |
dde6d43d | 2121 | char tmp[SYMBOL_MAX_VER_LEN+1] __attribute__((aligned(2))); |
1da177e4 LT |
2122 | |
2123 | /* Get the hardware version */ | |
2124 | err = HERMES_READ_RECORD(hw, USER_BAP, HERMES_RID_NICID, &nic_id); | |
2125 | if (err) { | |
2126 | printk(KERN_ERR "%s: Cannot read hardware identity: error %d\n", | |
2127 | dev->name, err); | |
2128 | return err; | |
2129 | } | |
2130 | ||
2131 | le16_to_cpus(&nic_id.id); | |
2132 | le16_to_cpus(&nic_id.variant); | |
2133 | le16_to_cpus(&nic_id.major); | |
2134 | le16_to_cpus(&nic_id.minor); | |
2135 | printk(KERN_DEBUG "%s: Hardware identity %04x:%04x:%04x:%04x\n", | |
2136 | dev->name, nic_id.id, nic_id.variant, | |
2137 | nic_id.major, nic_id.minor); | |
2138 | ||
2139 | priv->firmware_type = determine_firmware_type(&nic_id); | |
2140 | ||
2141 | /* Get the firmware version */ | |
2142 | err = HERMES_READ_RECORD(hw, USER_BAP, HERMES_RID_STAID, &sta_id); | |
2143 | if (err) { | |
2144 | printk(KERN_ERR "%s: Cannot read station identity: error %d\n", | |
2145 | dev->name, err); | |
2146 | return err; | |
2147 | } | |
2148 | ||
2149 | le16_to_cpus(&sta_id.id); | |
2150 | le16_to_cpus(&sta_id.variant); | |
2151 | le16_to_cpus(&sta_id.major); | |
2152 | le16_to_cpus(&sta_id.minor); | |
2153 | printk(KERN_DEBUG "%s: Station identity %04x:%04x:%04x:%04x\n", | |
2154 | dev->name, sta_id.id, sta_id.variant, | |
2155 | sta_id.major, sta_id.minor); | |
2156 | ||
2157 | switch (sta_id.id) { | |
2158 | case 0x15: | |
2159 | printk(KERN_ERR "%s: Primary firmware is active\n", | |
2160 | dev->name); | |
2161 | return -ENODEV; | |
2162 | case 0x14b: | |
2163 | printk(KERN_ERR "%s: Tertiary firmware is active\n", | |
2164 | dev->name); | |
2165 | return -ENODEV; | |
2166 | case 0x1f: /* Intersil, Agere, Symbol Spectrum24 */ | |
2167 | case 0x21: /* Symbol Spectrum24 Trilogy */ | |
2168 | break; | |
2169 | default: | |
2170 | printk(KERN_NOTICE "%s: Unknown station ID, please report\n", | |
2171 | dev->name); | |
2172 | break; | |
2173 | } | |
2174 | ||
2175 | /* Default capabilities */ | |
2176 | priv->has_sensitivity = 1; | |
2177 | priv->has_mwo = 0; | |
2178 | priv->has_preamble = 0; | |
2179 | priv->has_port3 = 1; | |
2180 | priv->has_ibss = 1; | |
2181 | priv->has_wep = 0; | |
2182 | priv->has_big_wep = 0; | |
6eecad77 | 2183 | priv->has_alt_txcntl = 0; |
01632fa4 | 2184 | priv->has_ext_scan = 0; |
d03032af | 2185 | priv->has_wpa = 0; |
3994d502 | 2186 | priv->do_fw_download = 0; |
1da177e4 LT |
2187 | |
2188 | /* Determine capabilities from the firmware version */ | |
2189 | switch (priv->firmware_type) { | |
2190 | case FIRMWARE_TYPE_AGERE: | |
2191 | /* Lucent Wavelan IEEE, Lucent Orinoco, Cabletron RoamAbout, | |
2192 | ELSA, Melco, HP, IBM, Dell 1150, Compaq 110/210 */ | |
2193 | snprintf(priv->fw_name, sizeof(priv->fw_name) - 1, | |
2194 | "Lucent/Agere %d.%02d", sta_id.major, sta_id.minor); | |
2195 | ||
2196 | firmver = ((unsigned long)sta_id.major << 16) | sta_id.minor; | |
2197 | ||
2198 | priv->has_ibss = (firmver >= 0x60006); | |
2199 | priv->has_wep = (firmver >= 0x40020); | |
2200 | priv->has_big_wep = 1; /* FIXME: this is wrong - how do we tell | |
2201 | Gold cards from the others? */ | |
2202 | priv->has_mwo = (firmver >= 0x60000); | |
2203 | priv->has_pm = (firmver >= 0x40020); /* Don't work in 7.52 ? */ | |
2204 | priv->ibss_port = 1; | |
95dd91fb | 2205 | priv->has_hostscan = (firmver >= 0x8000a); |
3994d502 | 2206 | priv->do_fw_download = 1; |
98c4cae1 | 2207 | priv->broken_monitor = (firmver >= 0x80000); |
6eecad77 | 2208 | priv->has_alt_txcntl = (firmver >= 0x90000); /* All 9.x ? */ |
01632fa4 | 2209 | priv->has_ext_scan = (firmver >= 0x90000); /* All 9.x ? */ |
d03032af | 2210 | priv->has_wpa = (firmver >= 0x9002a); |
1da177e4 LT |
2211 | /* Tested with Agere firmware : |
2212 | * 1.16 ; 4.08 ; 4.52 ; 6.04 ; 6.16 ; 7.28 => Jean II | |
2213 | * Tested CableTron firmware : 4.32 => Anton */ | |
2214 | break; | |
2215 | case FIRMWARE_TYPE_SYMBOL: | |
2216 | /* Symbol , 3Com AirConnect, Intel, Ericsson WLAN */ | |
2217 | /* Intel MAC : 00:02:B3:* */ | |
2218 | /* 3Com MAC : 00:50:DA:* */ | |
2219 | memset(tmp, 0, sizeof(tmp)); | |
2220 | /* Get the Symbol firmware version */ | |
2221 | err = hermes_read_ltv(hw, USER_BAP, | |
2222 | HERMES_RID_SECONDARYVERSION_SYMBOL, | |
2223 | SYMBOL_MAX_VER_LEN, NULL, &tmp); | |
2224 | if (err) { | |
2225 | printk(KERN_WARNING | |
b2f30a0a DK |
2226 | "%s: Error %d reading Symbol firmware info. " |
2227 | "Wildly guessing capabilities...\n", | |
1da177e4 LT |
2228 | dev->name, err); |
2229 | firmver = 0; | |
2230 | tmp[0] = '\0'; | |
2231 | } else { | |
2232 | /* The firmware revision is a string, the format is | |
2233 | * something like : "V2.20-01". | |
2234 | * Quick and dirty parsing... - Jean II | |
2235 | */ | |
b2f30a0a DK |
2236 | firmver = ((tmp[1] - '0') << 16) |
2237 | | ((tmp[3] - '0') << 12) | |
2238 | | ((tmp[4] - '0') << 8) | |
2239 | | ((tmp[6] - '0') << 4) | |
1da177e4 LT |
2240 | | (tmp[7] - '0'); |
2241 | ||
2242 | tmp[SYMBOL_MAX_VER_LEN] = '\0'; | |
2243 | } | |
2244 | ||
2245 | snprintf(priv->fw_name, sizeof(priv->fw_name) - 1, | |
2246 | "Symbol %s", tmp); | |
2247 | ||
2248 | priv->has_ibss = (firmver >= 0x20000); | |
2249 | priv->has_wep = (firmver >= 0x15012); | |
2250 | priv->has_big_wep = (firmver >= 0x20000); | |
6fe9deb1 | 2251 | priv->has_pm = (firmver >= 0x20000 && firmver < 0x22000) || |
1da177e4 LT |
2252 | (firmver >= 0x29000 && firmver < 0x30000) || |
2253 | firmver >= 0x31000; | |
2254 | priv->has_preamble = (firmver >= 0x20000); | |
2255 | priv->ibss_port = 4; | |
3994d502 DK |
2256 | |
2257 | /* Symbol firmware is found on various cards, but | |
2258 | * there has been no attempt to check firmware | |
2259 | * download on non-spectrum_cs based cards. | |
2260 | * | |
2261 | * Given that the Agere firmware download works | |
2262 | * differently, we should avoid doing a firmware | |
2263 | * download with the Symbol algorithm on non-spectrum | |
2264 | * cards. | |
2265 | * | |
2266 | * For now we can identify a spectrum_cs based card | |
2267 | * because it has a firmware reset function. | |
2268 | */ | |
2269 | priv->do_fw_download = (priv->stop_fw != NULL); | |
2270 | ||
6fe9deb1 | 2271 | priv->broken_disableport = (firmver == 0x25013) || |
b2f30a0a | 2272 | (firmver >= 0x30000 && firmver <= 0x31000); |
95dd91fb CH |
2273 | priv->has_hostscan = (firmver >= 0x31001) || |
2274 | (firmver >= 0x29057 && firmver < 0x30000); | |
1da177e4 LT |
2275 | /* Tested with Intel firmware : 0x20015 => Jean II */ |
2276 | /* Tested with 3Com firmware : 0x15012 & 0x22001 => Jean II */ | |
2277 | break; | |
2278 | case FIRMWARE_TYPE_INTERSIL: | |
2279 | /* D-Link, Linksys, Adtron, ZoomAir, and many others... | |
2280 | * Samsung, Compaq 100/200 and Proxim are slightly | |
2281 | * different and less well tested */ | |
2282 | /* D-Link MAC : 00:40:05:* */ | |
2283 | /* Addtron MAC : 00:90:D1:* */ | |
2284 | snprintf(priv->fw_name, sizeof(priv->fw_name) - 1, | |
2285 | "Intersil %d.%d.%d", sta_id.major, sta_id.minor, | |
2286 | sta_id.variant); | |
2287 | ||
2288 | firmver = ((unsigned long)sta_id.major << 16) | | |
2289 | ((unsigned long)sta_id.minor << 8) | sta_id.variant; | |
2290 | ||
2291 | priv->has_ibss = (firmver >= 0x000700); /* FIXME */ | |
2292 | priv->has_big_wep = priv->has_wep = (firmver >= 0x000800); | |
2293 | priv->has_pm = (firmver >= 0x000700); | |
95dd91fb | 2294 | priv->has_hostscan = (firmver >= 0x010301); |
1da177e4 LT |
2295 | |
2296 | if (firmver >= 0x000800) | |
2297 | priv->ibss_port = 0; | |
2298 | else { | |
2299 | printk(KERN_NOTICE "%s: Intersil firmware earlier " | |
2300 | "than v0.8.x - several features not supported\n", | |
2301 | dev->name); | |
2302 | priv->ibss_port = 1; | |
2303 | } | |
2304 | break; | |
2305 | } | |
2306 | printk(KERN_DEBUG "%s: Firmware determined as %s\n", dev->name, | |
2307 | priv->fw_name); | |
2308 | ||
2309 | return 0; | |
2310 | } | |
2311 | ||
2312 | static int orinoco_init(struct net_device *dev) | |
2313 | { | |
2314 | struct orinoco_private *priv = netdev_priv(dev); | |
2315 | hermes_t *hw = &priv->hw; | |
2316 | int err = 0; | |
2317 | struct hermes_idstring nickbuf; | |
2318 | u16 reclen; | |
2319 | int len; | |
2320 | ||
1da177e4 LT |
2321 | /* No need to lock, the hw_unavailable flag is already set in |
2322 | * alloc_orinocodev() */ | |
2c706002 | 2323 | priv->nicbuf_size = IEEE80211_MAX_FRAME_LEN + ETH_HLEN; |
1da177e4 LT |
2324 | |
2325 | /* Initialize the firmware */ | |
37a6c611 | 2326 | err = hermes_init(hw); |
1da177e4 LT |
2327 | if (err != 0) { |
2328 | printk(KERN_ERR "%s: failed to initialize firmware (err = %d)\n", | |
2329 | dev->name, err); | |
2330 | goto out; | |
2331 | } | |
2332 | ||
2333 | err = determine_firmware(dev); | |
2334 | if (err != 0) { | |
2335 | printk(KERN_ERR "%s: Incompatible firmware, aborting\n", | |
2336 | dev->name); | |
2337 | goto out; | |
2338 | } | |
2339 | ||
3994d502 | 2340 | if (priv->do_fw_download) { |
39d1ffee | 2341 | #ifdef CONFIG_HERMES_CACHE_FW_ON_INIT |
74734312 | 2342 | orinoco_cache_fw(priv, 0); |
39d1ffee | 2343 | #endif |
74734312 | 2344 | |
3994d502 DK |
2345 | err = orinoco_download(priv); |
2346 | if (err) | |
2347 | priv->do_fw_download = 0; | |
2348 | ||
2349 | /* Check firmware version again */ | |
2350 | err = determine_firmware(dev); | |
2351 | if (err != 0) { | |
2352 | printk(KERN_ERR "%s: Incompatible firmware, aborting\n", | |
2353 | dev->name); | |
2354 | goto out; | |
2355 | } | |
2356 | } | |
2357 | ||
1da177e4 | 2358 | if (priv->has_port3) |
b2f30a0a DK |
2359 | printk(KERN_DEBUG "%s: Ad-hoc demo mode supported\n", |
2360 | dev->name); | |
1da177e4 LT |
2361 | if (priv->has_ibss) |
2362 | printk(KERN_DEBUG "%s: IEEE standard IBSS ad-hoc mode supported\n", | |
2363 | dev->name); | |
2364 | if (priv->has_wep) { | |
2131266d DK |
2365 | printk(KERN_DEBUG "%s: WEP supported, %s-bit key\n", dev->name, |
2366 | priv->has_big_wep ? "104" : "40"); | |
1da177e4 | 2367 | } |
23edcc41 | 2368 | if (priv->has_wpa) { |
d03032af | 2369 | printk(KERN_DEBUG "%s: WPA-PSK supported\n", dev->name); |
23edcc41 DK |
2370 | if (orinoco_mic_init(priv)) { |
2371 | printk(KERN_ERR "%s: Failed to setup MIC crypto " | |
2372 | "algorithm. Disabling WPA support\n", dev->name); | |
2373 | priv->has_wpa = 0; | |
2374 | } | |
2375 | } | |
1da177e4 | 2376 | |
01632fa4 DK |
2377 | /* Now we have the firmware capabilities, allocate appropiate |
2378 | * sized scan buffers */ | |
2379 | if (orinoco_bss_data_allocate(priv)) | |
2380 | goto out; | |
2381 | orinoco_bss_data_init(priv); | |
2382 | ||
1da177e4 LT |
2383 | /* Get the MAC address */ |
2384 | err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CNFOWNMACADDR, | |
2385 | ETH_ALEN, NULL, dev->dev_addr); | |
2386 | if (err) { | |
2387 | printk(KERN_WARNING "%s: failed to read MAC address!\n", | |
2388 | dev->name); | |
2389 | goto out; | |
2390 | } | |
2391 | ||
e174961c JB |
2392 | printk(KERN_DEBUG "%s: MAC address %pM\n", |
2393 | dev->name, dev->dev_addr); | |
1da177e4 LT |
2394 | |
2395 | /* Get the station name */ | |
2396 | err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CNFOWNNAME, | |
2397 | sizeof(nickbuf), &reclen, &nickbuf); | |
2398 | if (err) { | |
2399 | printk(KERN_ERR "%s: failed to read station name\n", | |
2400 | dev->name); | |
2401 | goto out; | |
2402 | } | |
2403 | if (nickbuf.len) | |
2404 | len = min(IW_ESSID_MAX_SIZE, (int)le16_to_cpu(nickbuf.len)); | |
2405 | else | |
2406 | len = min(IW_ESSID_MAX_SIZE, 2 * reclen); | |
2407 | memcpy(priv->nick, &nickbuf.val, len); | |
2408 | priv->nick[len] = '\0'; | |
2409 | ||
2410 | printk(KERN_DEBUG "%s: Station name \"%s\"\n", dev->name, priv->nick); | |
2411 | ||
37a6c611 PR |
2412 | err = orinoco_allocate_fid(dev); |
2413 | if (err) { | |
2414 | printk(KERN_ERR "%s: failed to allocate NIC buffer!\n", | |
2415 | dev->name); | |
2416 | goto out; | |
2417 | } | |
2418 | ||
1da177e4 LT |
2419 | /* Get allowed channels */ |
2420 | err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CHANNELLIST, | |
2421 | &priv->channel_mask); | |
2422 | if (err) { | |
2423 | printk(KERN_ERR "%s: failed to read channel list!\n", | |
2424 | dev->name); | |
2425 | goto out; | |
2426 | } | |
2427 | ||
2428 | /* Get initial AP density */ | |
2429 | err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFSYSTEMSCALE, | |
2430 | &priv->ap_density); | |
566f2d9e | 2431 | if (err || priv->ap_density < 1 || priv->ap_density > 3) |
1da177e4 | 2432 | priv->has_sensitivity = 0; |
1da177e4 LT |
2433 | |
2434 | /* Get initial RTS threshold */ | |
2435 | err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFRTSTHRESHOLD, | |
2436 | &priv->rts_thresh); | |
2437 | if (err) { | |
2438 | printk(KERN_ERR "%s: failed to read RTS threshold!\n", | |
2439 | dev->name); | |
2440 | goto out; | |
2441 | } | |
2442 | ||
2443 | /* Get initial fragmentation settings */ | |
2444 | if (priv->has_mwo) | |
2445 | err = hermes_read_wordrec(hw, USER_BAP, | |
2446 | HERMES_RID_CNFMWOROBUST_AGERE, | |
2447 | &priv->mwo_robust); | |
2448 | else | |
b2f30a0a DK |
2449 | err = hermes_read_wordrec(hw, USER_BAP, |
2450 | HERMES_RID_CNFFRAGMENTATIONTHRESHOLD, | |
1da177e4 LT |
2451 | &priv->frag_thresh); |
2452 | if (err) { | |
2453 | printk(KERN_ERR "%s: failed to read fragmentation settings!\n", | |
2454 | dev->name); | |
2455 | goto out; | |
2456 | } | |
2457 | ||
2458 | /* Power management setup */ | |
2459 | if (priv->has_pm) { | |
2460 | priv->pm_on = 0; | |
2461 | priv->pm_mcast = 1; | |
2462 | err = hermes_read_wordrec(hw, USER_BAP, | |
2463 | HERMES_RID_CNFMAXSLEEPDURATION, | |
2464 | &priv->pm_period); | |
2465 | if (err) { | |
2466 | printk(KERN_ERR "%s: failed to read power management period!\n", | |
2467 | dev->name); | |
2468 | goto out; | |
2469 | } | |
2470 | err = hermes_read_wordrec(hw, USER_BAP, | |
2471 | HERMES_RID_CNFPMHOLDOVERDURATION, | |
2472 | &priv->pm_timeout); | |
2473 | if (err) { | |
2474 | printk(KERN_ERR "%s: failed to read power management timeout!\n", | |
2475 | dev->name); | |
2476 | goto out; | |
2477 | } | |
2478 | } | |
2479 | ||
2480 | /* Preamble setup */ | |
2481 | if (priv->has_preamble) { | |
2482 | err = hermes_read_wordrec(hw, USER_BAP, | |
2483 | HERMES_RID_CNFPREAMBLE_SYMBOL, | |
2484 | &priv->preamble); | |
2485 | if (err) | |
2486 | goto out; | |
2487 | } | |
6fe9deb1 | 2488 | |
1da177e4 LT |
2489 | /* Set up the default configuration */ |
2490 | priv->iw_mode = IW_MODE_INFRA; | |
2491 | /* By default use IEEE/IBSS ad-hoc mode if we have it */ | |
a94e8427 | 2492 | priv->prefer_port3 = priv->has_port3 && (!priv->has_ibss); |
1da177e4 | 2493 | set_port_type(priv); |
d51d8b1f | 2494 | priv->channel = 0; /* use firmware default */ |
1da177e4 LT |
2495 | |
2496 | priv->promiscuous = 0; | |
4ae6ee2d | 2497 | priv->encode_alg = IW_ENCODE_ALG_NONE; |
1da177e4 | 2498 | priv->tx_key = 0; |
d03032af DK |
2499 | priv->wpa_enabled = 0; |
2500 | priv->tkip_cm_active = 0; | |
2501 | priv->key_mgmt = 0; | |
2502 | priv->wpa_ie_len = 0; | |
2503 | priv->wpa_ie = NULL; | |
1da177e4 | 2504 | |
1da177e4 LT |
2505 | /* Make the hardware available, as long as it hasn't been |
2506 | * removed elsewhere (e.g. by PCMCIA hot unplug) */ | |
2507 | spin_lock_irq(&priv->lock); | |
2508 | priv->hw_unavailable--; | |
2509 | spin_unlock_irq(&priv->lock); | |
2510 | ||
2511 | printk(KERN_DEBUG "%s: ready\n", dev->name); | |
2512 | ||
2513 | out: | |
1da177e4 LT |
2514 | return err; |
2515 | } | |
2516 | ||
89ea4090 AB |
2517 | static const struct net_device_ops orinoco_netdev_ops = { |
2518 | .ndo_init = orinoco_init, | |
2519 | .ndo_open = orinoco_open, | |
2520 | .ndo_stop = orinoco_stop, | |
2521 | .ndo_start_xmit = orinoco_xmit, | |
2522 | .ndo_set_multicast_list = orinoco_set_multicast_list, | |
2523 | .ndo_change_mtu = orinoco_change_mtu, | |
2524 | .ndo_tx_timeout = orinoco_tx_timeout, | |
2525 | .ndo_get_stats = orinoco_get_stats, | |
2526 | }; | |
2527 | ||
3994d502 DK |
2528 | struct net_device |
2529 | *alloc_orinocodev(int sizeof_card, | |
2530 | struct device *device, | |
2531 | int (*hard_reset)(struct orinoco_private *), | |
2532 | int (*stop_fw)(struct orinoco_private *, int)) | |
1da177e4 LT |
2533 | { |
2534 | struct net_device *dev; | |
2535 | struct orinoco_private *priv; | |
2536 | ||
2537 | dev = alloc_etherdev(sizeof(struct orinoco_private) + sizeof_card); | |
e129a948 | 2538 | if (!dev) |
1da177e4 LT |
2539 | return NULL; |
2540 | priv = netdev_priv(dev); | |
2541 | priv->ndev = dev; | |
2542 | if (sizeof_card) | |
84d8a2fb | 2543 | priv->card = (void *)((unsigned long)priv |
1da177e4 LT |
2544 | + sizeof(struct orinoco_private)); |
2545 | else | |
2546 | priv->card = NULL; | |
3994d502 | 2547 | priv->dev = device; |
1da177e4 LT |
2548 | |
2549 | /* Setup / override net_device fields */ | |
89ea4090 | 2550 | dev->netdev_ops = &orinoco_netdev_ops; |
1da177e4 | 2551 | dev->watchdog_timeo = HZ; /* 1 second timeout */ |
1fab2e8b | 2552 | dev->ethtool_ops = &orinoco_ethtool_ops; |
e129a948 | 2553 | dev->wireless_handlers = &orinoco_handler_def; |
343c686c PR |
2554 | #ifdef WIRELESS_SPY |
2555 | priv->wireless_data.spy_data = &priv->spy_data; | |
2556 | dev->wireless_data = &priv->wireless_data; | |
2557 | #endif | |
1da177e4 LT |
2558 | /* we use the default eth_mac_addr for setting the MAC addr */ |
2559 | ||
23edcc41 DK |
2560 | /* Reserve space in skb for the SNAP header */ |
2561 | dev->hard_header_len += ENCAPS_OVERHEAD; | |
2562 | ||
1da177e4 | 2563 | /* Set up default callbacks */ |
1da177e4 | 2564 | priv->hard_reset = hard_reset; |
3994d502 | 2565 | priv->stop_fw = stop_fw; |
1da177e4 LT |
2566 | |
2567 | spin_lock_init(&priv->lock); | |
2568 | priv->open = 0; | |
2569 | priv->hw_unavailable = 1; /* orinoco_init() must clear this | |
2570 | * before anything else touches the | |
2571 | * hardware */ | |
c4028958 DH |
2572 | INIT_WORK(&priv->reset_work, orinoco_reset); |
2573 | INIT_WORK(&priv->join_work, orinoco_join_ap); | |
2574 | INIT_WORK(&priv->wevent_work, orinoco_send_wevents); | |
1da177e4 | 2575 | |
31afcef3 DK |
2576 | INIT_LIST_HEAD(&priv->rx_list); |
2577 | tasklet_init(&priv->rx_tasklet, orinoco_rx_isr_tasklet, | |
2578 | (unsigned long) dev); | |
2579 | ||
1da177e4 LT |
2580 | netif_carrier_off(dev); |
2581 | priv->last_linkstatus = 0xffff; | |
2582 | ||
2cea7b26 | 2583 | priv->cached_pri_fw = NULL; |
4fb30784 AB |
2584 | priv->cached_fw = NULL; |
2585 | ||
39d1ffee | 2586 | /* Register PM notifiers */ |
f11c179e | 2587 | orinoco_register_pm_notifier(priv); |
39d1ffee | 2588 | |
1da177e4 | 2589 | return dev; |
1da177e4 | 2590 | } |
2131266d | 2591 | EXPORT_SYMBOL(alloc_orinocodev); |
1da177e4 LT |
2592 | |
2593 | void free_orinocodev(struct net_device *dev) | |
2594 | { | |
95dd91fb | 2595 | struct orinoco_private *priv = netdev_priv(dev); |
20953ad6 | 2596 | struct orinoco_rx_data *rx_data, *temp; |
95dd91fb | 2597 | |
20953ad6 DK |
2598 | /* If the tasklet is scheduled when we call tasklet_kill it |
2599 | * will run one final time. However the tasklet will only | |
2600 | * drain priv->rx_list if the hw is still available. */ | |
31afcef3 | 2601 | tasklet_kill(&priv->rx_tasklet); |
74734312 | 2602 | |
20953ad6 DK |
2603 | /* Explicitly drain priv->rx_list */ |
2604 | list_for_each_entry_safe(rx_data, temp, &priv->rx_list, list) { | |
2605 | list_del(&rx_data->list); | |
2606 | ||
2607 | dev_kfree_skb(rx_data->skb); | |
2608 | kfree(rx_data->desc); | |
2609 | kfree(rx_data); | |
2610 | } | |
2611 | ||
f11c179e | 2612 | orinoco_unregister_pm_notifier(priv); |
74734312 DK |
2613 | orinoco_uncache_fw(priv); |
2614 | ||
d03032af DK |
2615 | priv->wpa_ie_len = 0; |
2616 | kfree(priv->wpa_ie); | |
23edcc41 | 2617 | orinoco_mic_free(priv); |
1e3428e9 | 2618 | orinoco_bss_data_free(priv); |
1da177e4 LT |
2619 | free_netdev(dev); |
2620 | } | |
2131266d | 2621 | EXPORT_SYMBOL(free_orinocodev); |
1da177e4 | 2622 | |
1fab2e8b CH |
2623 | static void orinoco_get_drvinfo(struct net_device *dev, |
2624 | struct ethtool_drvinfo *info) | |
2625 | { | |
2626 | struct orinoco_private *priv = netdev_priv(dev); | |
1da177e4 | 2627 | |
1fab2e8b CH |
2628 | strncpy(info->driver, DRIVER_NAME, sizeof(info->driver) - 1); |
2629 | strncpy(info->version, DRIVER_VERSION, sizeof(info->version) - 1); | |
2630 | strncpy(info->fw_version, priv->fw_name, sizeof(info->fw_version) - 1); | |
43cb76d9 | 2631 | if (dev->dev.parent) |
fb28ad35 | 2632 | strncpy(info->bus_info, dev_name(dev->dev.parent), |
1fab2e8b CH |
2633 | sizeof(info->bus_info) - 1); |
2634 | else | |
2635 | snprintf(info->bus_info, sizeof(info->bus_info) - 1, | |
2636 | "PCMCIA %p", priv->hw.iobase); | |
1da177e4 LT |
2637 | } |
2638 | ||
7282d491 | 2639 | static const struct ethtool_ops orinoco_ethtool_ops = { |
1fab2e8b CH |
2640 | .get_drvinfo = orinoco_get_drvinfo, |
2641 | .get_link = ethtool_op_get_link, | |
2642 | }; | |
1da177e4 | 2643 | |
1da177e4 LT |
2644 | /********************************************************************/ |
2645 | /* Module initialization */ | |
2646 | /********************************************************************/ | |
2647 | ||
1da177e4 LT |
2648 | /* Can't be declared "const" or the whole __initdata section will |
2649 | * become const */ | |
2650 | static char version[] __initdata = DRIVER_NAME " " DRIVER_VERSION | |
2651 | " (David Gibson <hermes@gibson.dropbear.id.au>, " | |
2652 | "Pavel Roskin <proski@gnu.org>, et al)"; | |
2653 | ||
2654 | static int __init init_orinoco(void) | |
2655 | { | |
2656 | printk(KERN_DEBUG "%s\n", version); | |
2657 | return 0; | |
2658 | } | |
2659 | ||
2660 | static void __exit exit_orinoco(void) | |
2661 | { | |
2662 | } | |
2663 | ||
2664 | module_init(init_orinoco); | |
2665 | module_exit(exit_orinoco); |