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1 /* src/prism2/driver/prism2sta.c
2  *
3  * Implements the station functionality for prism2
4  *
5  * Copyright (C) 1999 AbsoluteValue Systems, Inc.  All Rights Reserved.
6  * --------------------------------------------------------------------
7  *
8  * linux-wlan
9  *
10  *   The contents of this file are subject to the Mozilla Public
11  *   License Version 1.1 (the "License"); you may not use this file
12  *   except in compliance with the License. You may obtain a copy of
13  *   the License at http://www.mozilla.org/MPL/
14  *
15  *   Software distributed under the License is distributed on an "AS
16  *   IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
17  *   implied. See the License for the specific language governing
18  *   rights and limitations under the License.
19  *
20  *   Alternatively, the contents of this file may be used under the
21  *   terms of the GNU Public License version 2 (the "GPL"), in which
22  *   case the provisions of the GPL are applicable instead of the
23  *   above.  If you wish to allow the use of your version of this file
24  *   only under the terms of the GPL and not to allow others to use
25  *   your version of this file under the MPL, indicate your decision
26  *   by deleting the provisions above and replace them with the notice
27  *   and other provisions required by the GPL.  If you do not delete
28  *   the provisions above, a recipient may use your version of this
29  *   file under either the MPL or the GPL.
30  *
31  * --------------------------------------------------------------------
32  *
33  * Inquiries regarding the linux-wlan Open Source project can be
34  * made directly to:
35  *
36  * AbsoluteValue Systems Inc.
37  * info@linux-wlan.com
38  * http://www.linux-wlan.com
39  *
40  * --------------------------------------------------------------------
41  *
42  * Portions of the development of this software were funded by
43  * Intersil Corporation as part of PRISM(R) chipset product development.
44  *
45  * --------------------------------------------------------------------
46  *
47  * This file implements the module and linux pcmcia routines for the
48  * prism2 driver.
49  *
50  * --------------------------------------------------------------------
51  */
52 
53 #include <linux/module.h>
54 #include <linux/kernel.h>
55 #include <linux/sched.h>
56 #include <linux/types.h>
57 #include <linux/slab.h>
58 #include <linux/wireless.h>
59 #include <linux/netdevice.h>
60 #include <linux/workqueue.h>
61 #include <linux/byteorder/generic.h>
62 #include <linux/etherdevice.h>
63 
64 #include <linux/io.h>
65 #include <linux/delay.h>
66 #include <asm/byteorder.h>
67 #include <linux/if_arp.h>
68 #include <linux/if_ether.h>
69 #include <linux/bitops.h>
70 
71 #include "p80211types.h"
72 #include "p80211hdr.h"
73 #include "p80211mgmt.h"
74 #include "p80211conv.h"
75 #include "p80211msg.h"
76 #include "p80211netdev.h"
77 #include "p80211req.h"
78 #include "p80211metadef.h"
79 #include "p80211metastruct.h"
80 #include "hfa384x.h"
81 #include "prism2mgmt.h"
82 
83 static char *dev_info = "prism2_usb";
84 static wlandevice_t *create_wlan(void);
85 
86 int prism2_reset_holdtime = 30;	/* Reset hold time in ms */
87 int prism2_reset_settletime = 100;	/* Reset settle time in ms */
88 
89 static int prism2_doreset;	/* Do a reset at init? */
90 
91 module_param(prism2_doreset, int, 0644);
92 MODULE_PARM_DESC(prism2_doreset, "Issue a reset on initialization");
93 
94 module_param(prism2_reset_holdtime, int, 0644);
95 MODULE_PARM_DESC(prism2_reset_holdtime, "reset hold time in ms");
96 module_param(prism2_reset_settletime, int, 0644);
97 MODULE_PARM_DESC(prism2_reset_settletime, "reset settle time in ms");
98 
99 MODULE_LICENSE("Dual MPL/GPL");
100 
101 static int prism2sta_open(wlandevice_t *wlandev);
102 static int prism2sta_close(wlandevice_t *wlandev);
103 static void prism2sta_reset(wlandevice_t *wlandev);
104 static int prism2sta_txframe(wlandevice_t *wlandev, struct sk_buff *skb,
105 			     union p80211_hdr *p80211_hdr,
106 			     struct p80211_metawep *p80211_wep);
107 static int prism2sta_mlmerequest(wlandevice_t *wlandev, struct p80211msg *msg);
108 static int prism2sta_getcardinfo(wlandevice_t *wlandev);
109 static int prism2sta_globalsetup(wlandevice_t *wlandev);
110 static int prism2sta_setmulticast(wlandevice_t *wlandev, netdevice_t *dev);
111 
112 static void prism2sta_inf_handover(wlandevice_t *wlandev,
113 				   hfa384x_InfFrame_t *inf);
114 static void prism2sta_inf_tallies(wlandevice_t *wlandev,
115 				  hfa384x_InfFrame_t *inf);
116 static void prism2sta_inf_hostscanresults(wlandevice_t *wlandev,
117 					  hfa384x_InfFrame_t *inf);
118 static void prism2sta_inf_scanresults(wlandevice_t *wlandev,
119 				      hfa384x_InfFrame_t *inf);
120 static void prism2sta_inf_chinforesults(wlandevice_t *wlandev,
121 					hfa384x_InfFrame_t *inf);
122 static void prism2sta_inf_linkstatus(wlandevice_t *wlandev,
123 				     hfa384x_InfFrame_t *inf);
124 static void prism2sta_inf_assocstatus(wlandevice_t *wlandev,
125 				      hfa384x_InfFrame_t *inf);
126 static void prism2sta_inf_authreq(wlandevice_t *wlandev,
127 				  hfa384x_InfFrame_t *inf);
128 static void prism2sta_inf_authreq_defer(wlandevice_t *wlandev,
129 					hfa384x_InfFrame_t *inf);
130 static void prism2sta_inf_psusercnt(wlandevice_t *wlandev,
131 				    hfa384x_InfFrame_t *inf);
132 
133 /*
134  * prism2sta_open
135  *
136  * WLAN device open method.  Called from p80211netdev when kernel
137  * device open (start) method is called in response to the
138  * SIOCSIIFFLAGS ioctl changing the flags bit IFF_UP
139  * from clear to set.
140  *
141  * Arguments:
142  *	wlandev		wlan device structure
143  *
144  * Returns:
145  *	0	success
146  *	>0	f/w reported error
147  *	<0	driver reported error
148  *
149  * Side effects:
150  *
151  * Call context:
152  *	process thread
153  */
prism2sta_open(wlandevice_t * wlandev)154 static int prism2sta_open(wlandevice_t *wlandev)
155 {
156 	/* We don't currently have to do anything else.
157 	 * The setup of the MAC should be subsequently completed via
158 	 * the mlme commands.
159 	 * Higher layers know we're ready from dev->start==1 and
160 	 * dev->tbusy==0.  Our rx path knows to pass up received/
161 	 * frames because of dev->flags&IFF_UP is true.
162 	 */
163 
164 	return 0;
165 }
166 
167 /*
168  * prism2sta_close
169  *
170  * WLAN device close method.  Called from p80211netdev when kernel
171  * device close method is called in response to the
172  * SIOCSIIFFLAGS ioctl changing the flags bit IFF_UP
173  * from set to clear.
174  *
175  * Arguments:
176  *	wlandev		wlan device structure
177  *
178  * Returns:
179  *	0	success
180  *	>0	f/w reported error
181  *	<0	driver reported error
182  *
183  * Side effects:
184  *
185  * Call context:
186  *	process thread
187  */
prism2sta_close(wlandevice_t * wlandev)188 static int prism2sta_close(wlandevice_t *wlandev)
189 {
190 	/* We don't currently have to do anything else.
191 	 * Higher layers know we're not ready from dev->start==0 and
192 	 * dev->tbusy==1.  Our rx path knows to not pass up received
193 	 * frames because of dev->flags&IFF_UP is false.
194 	 */
195 
196 	return 0;
197 }
198 
199 /*
200  * prism2sta_reset
201  *
202  * Currently not implemented.
203  *
204  * Arguments:
205  *	wlandev		wlan device structure
206  *	none
207  *
208  * Returns:
209  *	nothing
210  *
211  * Side effects:
212  *
213  * Call context:
214  *	process thread
215  */
prism2sta_reset(wlandevice_t * wlandev)216 static void prism2sta_reset(wlandevice_t *wlandev)
217 {
218 }
219 
220 /*
221  * prism2sta_txframe
222  *
223  * Takes a frame from p80211 and queues it for transmission.
224  *
225  * Arguments:
226  *	wlandev		wlan device structure
227  *	pb		packet buffer struct.  Contains an 802.11
228  *			data frame.
229  *       p80211_hdr      points to the 802.11 header for the packet.
230  * Returns:
231  *	0		Success and more buffs available
232  *	1		Success but no more buffs
233  *	2		Allocation failure
234  *	4		Buffer full or queue busy
235  *
236  * Side effects:
237  *
238  * Call context:
239  *	process thread
240  */
prism2sta_txframe(wlandevice_t * wlandev,struct sk_buff * skb,union p80211_hdr * p80211_hdr,struct p80211_metawep * p80211_wep)241 static int prism2sta_txframe(wlandevice_t *wlandev, struct sk_buff *skb,
242 			     union p80211_hdr *p80211_hdr,
243 			     struct p80211_metawep *p80211_wep)
244 {
245 	hfa384x_t *hw = (hfa384x_t *) wlandev->priv;
246 
247 	/* If necessary, set the 802.11 WEP bit */
248 	if ((wlandev->hostwep & (HOSTWEP_PRIVACYINVOKED | HOSTWEP_ENCRYPT)) ==
249 	    HOSTWEP_PRIVACYINVOKED) {
250 		p80211_hdr->a3.fc |= cpu_to_le16(WLAN_SET_FC_ISWEP(1));
251 	}
252 
253 	return hfa384x_drvr_txframe(hw, skb, p80211_hdr, p80211_wep);
254 }
255 
256 /*
257  * prism2sta_mlmerequest
258  *
259  * wlan command message handler.  All we do here is pass the message
260  * over to the prism2sta_mgmt_handler.
261  *
262  * Arguments:
263  *	wlandev		wlan device structure
264  *	msg		wlan command message
265  * Returns:
266  *	0		success
267  *	<0		successful acceptance of message, but we're
268  *			waiting for an async process to finish before
269  *			we're done with the msg.  When the asynch
270  *			process is done, we'll call the p80211
271  *			function p80211req_confirm() .
272  *	>0		An error occurred while we were handling
273  *			the message.
274  *
275  * Side effects:
276  *
277  * Call context:
278  *	process thread
279  */
prism2sta_mlmerequest(wlandevice_t * wlandev,struct p80211msg * msg)280 static int prism2sta_mlmerequest(wlandevice_t *wlandev, struct p80211msg *msg)
281 {
282 	hfa384x_t *hw = (hfa384x_t *) wlandev->priv;
283 
284 	int result = 0;
285 
286 	switch (msg->msgcode) {
287 	case DIDmsg_dot11req_mibget:
288 		pr_debug("Received mibget request\n");
289 		result = prism2mgmt_mibset_mibget(wlandev, msg);
290 		break;
291 	case DIDmsg_dot11req_mibset:
292 		pr_debug("Received mibset request\n");
293 		result = prism2mgmt_mibset_mibget(wlandev, msg);
294 		break;
295 	case DIDmsg_dot11req_scan:
296 		pr_debug("Received scan request\n");
297 		result = prism2mgmt_scan(wlandev, msg);
298 		break;
299 	case DIDmsg_dot11req_scan_results:
300 		pr_debug("Received scan_results request\n");
301 		result = prism2mgmt_scan_results(wlandev, msg);
302 		break;
303 	case DIDmsg_dot11req_start:
304 		pr_debug("Received mlme start request\n");
305 		result = prism2mgmt_start(wlandev, msg);
306 		break;
307 		/*
308 		 * Prism2 specific messages
309 		 */
310 	case DIDmsg_p2req_readpda:
311 		pr_debug("Received mlme readpda request\n");
312 		result = prism2mgmt_readpda(wlandev, msg);
313 		break;
314 	case DIDmsg_p2req_ramdl_state:
315 		pr_debug("Received mlme ramdl_state request\n");
316 		result = prism2mgmt_ramdl_state(wlandev, msg);
317 		break;
318 	case DIDmsg_p2req_ramdl_write:
319 		pr_debug("Received mlme ramdl_write request\n");
320 		result = prism2mgmt_ramdl_write(wlandev, msg);
321 		break;
322 	case DIDmsg_p2req_flashdl_state:
323 		pr_debug("Received mlme flashdl_state request\n");
324 		result = prism2mgmt_flashdl_state(wlandev, msg);
325 		break;
326 	case DIDmsg_p2req_flashdl_write:
327 		pr_debug("Received mlme flashdl_write request\n");
328 		result = prism2mgmt_flashdl_write(wlandev, msg);
329 		break;
330 		/*
331 		 * Linux specific messages
332 		 */
333 	case DIDmsg_lnxreq_hostwep:
334 		break;		/* ignore me. */
335 	case DIDmsg_lnxreq_ifstate:
336 		{
337 			struct p80211msg_lnxreq_ifstate *ifstatemsg;
338 
339 			pr_debug("Received mlme ifstate request\n");
340 			ifstatemsg = (struct p80211msg_lnxreq_ifstate *) msg;
341 			result =
342 			    prism2sta_ifstate(wlandev,
343 					      ifstatemsg->ifstate.data);
344 			ifstatemsg->resultcode.status =
345 			    P80211ENUM_msgitem_status_data_ok;
346 			ifstatemsg->resultcode.data = result;
347 			result = 0;
348 		}
349 		break;
350 	case DIDmsg_lnxreq_wlansniff:
351 		pr_debug("Received mlme wlansniff request\n");
352 		result = prism2mgmt_wlansniff(wlandev, msg);
353 		break;
354 	case DIDmsg_lnxreq_autojoin:
355 		pr_debug("Received mlme autojoin request\n");
356 		result = prism2mgmt_autojoin(wlandev, msg);
357 		break;
358 	case DIDmsg_lnxreq_commsquality:{
359 			struct p80211msg_lnxreq_commsquality *qualmsg;
360 
361 			pr_debug("Received commsquality request\n");
362 
363 			qualmsg = (struct p80211msg_lnxreq_commsquality *) msg;
364 
365 			qualmsg->link.status =
366 			    P80211ENUM_msgitem_status_data_ok;
367 			qualmsg->level.status =
368 			    P80211ENUM_msgitem_status_data_ok;
369 			qualmsg->noise.status =
370 			    P80211ENUM_msgitem_status_data_ok;
371 
372 			qualmsg->link.data = le16_to_cpu(hw->qual.CQ_currBSS);
373 			qualmsg->level.data = le16_to_cpu(hw->qual.ASL_currBSS);
374 			qualmsg->noise.data = le16_to_cpu(hw->qual.ANL_currFC);
375 			qualmsg->txrate.data = hw->txrate;
376 
377 			break;
378 		}
379 	default:
380 		netdev_warn(wlandev->netdev,
381 			    "Unknown mgmt request message 0x%08x",
382 			    msg->msgcode);
383 		break;
384 	}
385 
386 	return result;
387 }
388 
389 /*
390  * prism2sta_ifstate
391  *
392  * Interface state.  This is the primary WLAN interface enable/disable
393  * handler.  Following the driver/load/deviceprobe sequence, this
394  * function must be called with a state of "enable" before any other
395  * commands will be accepted.
396  *
397  * Arguments:
398  *	wlandev		wlan device structure
399  *	msgp		ptr to msg buffer
400  *
401  * Returns:
402  *	A p80211 message resultcode value.
403  *
404  * Side effects:
405  *
406  * Call context:
407  *	process thread  (usually)
408  *	interrupt
409  */
prism2sta_ifstate(wlandevice_t * wlandev,u32 ifstate)410 u32 prism2sta_ifstate(wlandevice_t *wlandev, u32 ifstate)
411 {
412 	hfa384x_t *hw = (hfa384x_t *) wlandev->priv;
413 	u32 result;
414 
415 	result = P80211ENUM_resultcode_implementation_failure;
416 
417 	pr_debug("Current MSD state(%d), requesting(%d)\n",
418 		 wlandev->msdstate, ifstate);
419 	switch (ifstate) {
420 	case P80211ENUM_ifstate_fwload:
421 		switch (wlandev->msdstate) {
422 		case WLAN_MSD_HWPRESENT:
423 			wlandev->msdstate = WLAN_MSD_FWLOAD_PENDING;
424 			/*
425 			 * Initialize the device+driver sufficiently
426 			 * for firmware loading.
427 			 */
428 			result = hfa384x_drvr_start(hw);
429 			if (result) {
430 				netdev_err(wlandev->netdev,
431 					   "hfa384x_drvr_start() failed,result=%d\n",
432 					   (int)result);
433 				result =
434 				 P80211ENUM_resultcode_implementation_failure;
435 				wlandev->msdstate = WLAN_MSD_HWPRESENT;
436 				break;
437 			}
438 			wlandev->msdstate = WLAN_MSD_FWLOAD;
439 			result = P80211ENUM_resultcode_success;
440 			break;
441 		case WLAN_MSD_FWLOAD:
442 			hfa384x_cmd_initialize(hw);
443 			result = P80211ENUM_resultcode_success;
444 			break;
445 		case WLAN_MSD_RUNNING:
446 			netdev_warn(wlandev->netdev,
447 				    "Cannot enter fwload state from enable state, you must disable first.\n");
448 			result = P80211ENUM_resultcode_invalid_parameters;
449 			break;
450 		case WLAN_MSD_HWFAIL:
451 		default:
452 			/* probe() had a problem or the msdstate contains
453 			 * an unrecognized value, there's nothing we can do.
454 			 */
455 			result = P80211ENUM_resultcode_implementation_failure;
456 			break;
457 		}
458 		break;
459 	case P80211ENUM_ifstate_enable:
460 		switch (wlandev->msdstate) {
461 		case WLAN_MSD_HWPRESENT:
462 		case WLAN_MSD_FWLOAD:
463 			wlandev->msdstate = WLAN_MSD_RUNNING_PENDING;
464 			/* Initialize the device+driver for full
465 			 * operation. Note that this might me an FWLOAD to
466 			 * to RUNNING transition so we must not do a chip
467 			 * or board level reset.  Note that on failure,
468 			 * the MSD state is set to HWPRESENT because we
469 			 * can't make any assumptions about the state
470 			 * of the hardware or a previous firmware load.
471 			 */
472 			result = hfa384x_drvr_start(hw);
473 			if (result) {
474 				netdev_err(wlandev->netdev,
475 					   "hfa384x_drvr_start() failed,result=%d\n",
476 					   (int)result);
477 				result =
478 				  P80211ENUM_resultcode_implementation_failure;
479 				wlandev->msdstate = WLAN_MSD_HWPRESENT;
480 				break;
481 			}
482 
483 			result = prism2sta_getcardinfo(wlandev);
484 			if (result) {
485 				netdev_err(wlandev->netdev,
486 					   "prism2sta_getcardinfo() failed,result=%d\n",
487 					   (int)result);
488 				result =
489 				  P80211ENUM_resultcode_implementation_failure;
490 				hfa384x_drvr_stop(hw);
491 				wlandev->msdstate = WLAN_MSD_HWPRESENT;
492 				break;
493 			}
494 			result = prism2sta_globalsetup(wlandev);
495 			if (result) {
496 				netdev_err(wlandev->netdev,
497 					   "prism2sta_globalsetup() failed,result=%d\n",
498 					   (int)result);
499 				result =
500 				  P80211ENUM_resultcode_implementation_failure;
501 				hfa384x_drvr_stop(hw);
502 				wlandev->msdstate = WLAN_MSD_HWPRESENT;
503 				break;
504 			}
505 			wlandev->msdstate = WLAN_MSD_RUNNING;
506 			hw->join_ap = 0;
507 			hw->join_retries = 60;
508 			result = P80211ENUM_resultcode_success;
509 			break;
510 		case WLAN_MSD_RUNNING:
511 			/* Do nothing, we're already in this state. */
512 			result = P80211ENUM_resultcode_success;
513 			break;
514 		case WLAN_MSD_HWFAIL:
515 		default:
516 			/* probe() had a problem or the msdstate contains
517 			 * an unrecognized value, there's nothing we can do.
518 			 */
519 			result = P80211ENUM_resultcode_implementation_failure;
520 			break;
521 		}
522 		break;
523 	case P80211ENUM_ifstate_disable:
524 		switch (wlandev->msdstate) {
525 		case WLAN_MSD_HWPRESENT:
526 			/* Do nothing, we're already in this state. */
527 			result = P80211ENUM_resultcode_success;
528 			break;
529 		case WLAN_MSD_FWLOAD:
530 		case WLAN_MSD_RUNNING:
531 			wlandev->msdstate = WLAN_MSD_HWPRESENT_PENDING;
532 			/*
533 			 * TODO: Shut down the MAC completely. Here a chip
534 			 * or board level reset is probably called for.
535 			 * After a "disable" _all_ results are lost, even
536 			 * those from a fwload.
537 			 */
538 			if (!wlandev->hwremoved)
539 				netif_carrier_off(wlandev->netdev);
540 
541 			hfa384x_drvr_stop(hw);
542 
543 			wlandev->macmode = WLAN_MACMODE_NONE;
544 			wlandev->msdstate = WLAN_MSD_HWPRESENT;
545 			result = P80211ENUM_resultcode_success;
546 			break;
547 		case WLAN_MSD_HWFAIL:
548 		default:
549 			/* probe() had a problem or the msdstate contains
550 			 * an unrecognized value, there's nothing we can do.
551 			 */
552 			result = P80211ENUM_resultcode_implementation_failure;
553 			break;
554 		}
555 		break;
556 	default:
557 		result = P80211ENUM_resultcode_invalid_parameters;
558 		break;
559 	}
560 
561 	return result;
562 }
563 
564 /*
565  * prism2sta_getcardinfo
566  *
567  * Collect the NICID, firmware version and any other identifiers
568  * we'd like to have in host-side data structures.
569  *
570  * Arguments:
571  *	wlandev		wlan device structure
572  *
573  * Returns:
574  *	0	success
575  *	>0	f/w reported error
576  *	<0	driver reported error
577  *
578  * Side effects:
579  *
580  * Call context:
581  *	Either.
582  */
prism2sta_getcardinfo(wlandevice_t * wlandev)583 static int prism2sta_getcardinfo(wlandevice_t *wlandev)
584 {
585 	int result = 0;
586 	hfa384x_t *hw = (hfa384x_t *) wlandev->priv;
587 	u16 temp;
588 	u8 snum[HFA384x_RID_NICSERIALNUMBER_LEN];
589 
590 	/* Collect version and compatibility info */
591 	/*  Some are critical, some are not */
592 	/* NIC identity */
593 	result = hfa384x_drvr_getconfig(hw, HFA384x_RID_NICIDENTITY,
594 					&hw->ident_nic,
595 					sizeof(hfa384x_compident_t));
596 	if (result) {
597 		netdev_err(wlandev->netdev, "Failed to retrieve NICIDENTITY\n");
598 		goto failed;
599 	}
600 
601 	/* get all the nic id fields in host byte order */
602 	hw->ident_nic.id = le16_to_cpu(hw->ident_nic.id);
603 	hw->ident_nic.variant = le16_to_cpu(hw->ident_nic.variant);
604 	hw->ident_nic.major = le16_to_cpu(hw->ident_nic.major);
605 	hw->ident_nic.minor = le16_to_cpu(hw->ident_nic.minor);
606 
607 	netdev_info(wlandev->netdev, "ident: nic h/w: id=0x%02x %d.%d.%d\n",
608 	       hw->ident_nic.id, hw->ident_nic.major,
609 	       hw->ident_nic.minor, hw->ident_nic.variant);
610 
611 	/* Primary f/w identity */
612 	result = hfa384x_drvr_getconfig(hw, HFA384x_RID_PRIIDENTITY,
613 					&hw->ident_pri_fw,
614 					sizeof(hfa384x_compident_t));
615 	if (result) {
616 		netdev_err(wlandev->netdev, "Failed to retrieve PRIIDENTITY\n");
617 		goto failed;
618 	}
619 
620 	/* get all the private fw id fields in host byte order */
621 	hw->ident_pri_fw.id = le16_to_cpu(hw->ident_pri_fw.id);
622 	hw->ident_pri_fw.variant = le16_to_cpu(hw->ident_pri_fw.variant);
623 	hw->ident_pri_fw.major = le16_to_cpu(hw->ident_pri_fw.major);
624 	hw->ident_pri_fw.minor = le16_to_cpu(hw->ident_pri_fw.minor);
625 
626 	netdev_info(wlandev->netdev, "ident: pri f/w: id=0x%02x %d.%d.%d\n",
627 	       hw->ident_pri_fw.id, hw->ident_pri_fw.major,
628 	       hw->ident_pri_fw.minor, hw->ident_pri_fw.variant);
629 
630 	/* Station (Secondary?) f/w identity */
631 	result = hfa384x_drvr_getconfig(hw, HFA384x_RID_STAIDENTITY,
632 					&hw->ident_sta_fw,
633 					sizeof(hfa384x_compident_t));
634 	if (result) {
635 		netdev_err(wlandev->netdev, "Failed to retrieve STAIDENTITY\n");
636 		goto failed;
637 	}
638 
639 	if (hw->ident_nic.id < 0x8000) {
640 		netdev_err(wlandev->netdev,
641 		       "FATAL: Card is not an Intersil Prism2/2.5/3\n");
642 		result = -1;
643 		goto failed;
644 	}
645 
646 	/* get all the station fw id fields in host byte order */
647 	hw->ident_sta_fw.id = le16_to_cpu(hw->ident_sta_fw.id);
648 	hw->ident_sta_fw.variant = le16_to_cpu(hw->ident_sta_fw.variant);
649 	hw->ident_sta_fw.major = le16_to_cpu(hw->ident_sta_fw.major);
650 	hw->ident_sta_fw.minor = le16_to_cpu(hw->ident_sta_fw.minor);
651 
652 	/* strip out the 'special' variant bits */
653 	hw->mm_mods = hw->ident_sta_fw.variant & (BIT(14) | BIT(15));
654 	hw->ident_sta_fw.variant &= ~((u16) (BIT(14) | BIT(15)));
655 
656 	if (hw->ident_sta_fw.id == 0x1f) {
657 		netdev_info(wlandev->netdev,
658 		       "ident: sta f/w: id=0x%02x %d.%d.%d\n",
659 		       hw->ident_sta_fw.id, hw->ident_sta_fw.major,
660 		       hw->ident_sta_fw.minor, hw->ident_sta_fw.variant);
661 	} else {
662 		netdev_info(wlandev->netdev,
663 		       "ident:  ap f/w: id=0x%02x %d.%d.%d\n",
664 		       hw->ident_sta_fw.id, hw->ident_sta_fw.major,
665 		       hw->ident_sta_fw.minor, hw->ident_sta_fw.variant);
666 		netdev_err(wlandev->netdev, "Unsupported Tertiary AP firmware loaded!\n");
667 		goto failed;
668 	}
669 
670 	/* Compatibility range, Modem supplier */
671 	result = hfa384x_drvr_getconfig(hw, HFA384x_RID_MFISUPRANGE,
672 					&hw->cap_sup_mfi,
673 					sizeof(hfa384x_caplevel_t));
674 	if (result) {
675 		netdev_err(wlandev->netdev, "Failed to retrieve MFISUPRANGE\n");
676 		goto failed;
677 	}
678 
679 	/* get all the Compatibility range, modem interface supplier
680 	 * fields in byte order
681 	 */
682 	hw->cap_sup_mfi.role = le16_to_cpu(hw->cap_sup_mfi.role);
683 	hw->cap_sup_mfi.id = le16_to_cpu(hw->cap_sup_mfi.id);
684 	hw->cap_sup_mfi.variant = le16_to_cpu(hw->cap_sup_mfi.variant);
685 	hw->cap_sup_mfi.bottom = le16_to_cpu(hw->cap_sup_mfi.bottom);
686 	hw->cap_sup_mfi.top = le16_to_cpu(hw->cap_sup_mfi.top);
687 
688 	netdev_info(wlandev->netdev,
689 	       "MFI:SUP:role=0x%02x:id=0x%02x:var=0x%02x:b/t=%d/%d\n",
690 	       hw->cap_sup_mfi.role, hw->cap_sup_mfi.id,
691 	       hw->cap_sup_mfi.variant, hw->cap_sup_mfi.bottom,
692 	       hw->cap_sup_mfi.top);
693 
694 	/* Compatibility range, Controller supplier */
695 	result = hfa384x_drvr_getconfig(hw, HFA384x_RID_CFISUPRANGE,
696 					&hw->cap_sup_cfi,
697 					sizeof(hfa384x_caplevel_t));
698 	if (result) {
699 		netdev_err(wlandev->netdev, "Failed to retrieve CFISUPRANGE\n");
700 		goto failed;
701 	}
702 
703 	/* get all the Compatibility range, controller interface supplier
704 	 * fields in byte order
705 	 */
706 	hw->cap_sup_cfi.role = le16_to_cpu(hw->cap_sup_cfi.role);
707 	hw->cap_sup_cfi.id = le16_to_cpu(hw->cap_sup_cfi.id);
708 	hw->cap_sup_cfi.variant = le16_to_cpu(hw->cap_sup_cfi.variant);
709 	hw->cap_sup_cfi.bottom = le16_to_cpu(hw->cap_sup_cfi.bottom);
710 	hw->cap_sup_cfi.top = le16_to_cpu(hw->cap_sup_cfi.top);
711 
712 	netdev_info(wlandev->netdev,
713 	       "CFI:SUP:role=0x%02x:id=0x%02x:var=0x%02x:b/t=%d/%d\n",
714 	       hw->cap_sup_cfi.role, hw->cap_sup_cfi.id,
715 	       hw->cap_sup_cfi.variant, hw->cap_sup_cfi.bottom,
716 	       hw->cap_sup_cfi.top);
717 
718 	/* Compatibility range, Primary f/w supplier */
719 	result = hfa384x_drvr_getconfig(hw, HFA384x_RID_PRISUPRANGE,
720 					&hw->cap_sup_pri,
721 					sizeof(hfa384x_caplevel_t));
722 	if (result) {
723 		netdev_err(wlandev->netdev, "Failed to retrieve PRISUPRANGE\n");
724 		goto failed;
725 	}
726 
727 	/* get all the Compatibility range, primary firmware supplier
728 	 * fields in byte order
729 	 */
730 	hw->cap_sup_pri.role = le16_to_cpu(hw->cap_sup_pri.role);
731 	hw->cap_sup_pri.id = le16_to_cpu(hw->cap_sup_pri.id);
732 	hw->cap_sup_pri.variant = le16_to_cpu(hw->cap_sup_pri.variant);
733 	hw->cap_sup_pri.bottom = le16_to_cpu(hw->cap_sup_pri.bottom);
734 	hw->cap_sup_pri.top = le16_to_cpu(hw->cap_sup_pri.top);
735 
736 	netdev_info(wlandev->netdev,
737 	       "PRI:SUP:role=0x%02x:id=0x%02x:var=0x%02x:b/t=%d/%d\n",
738 	       hw->cap_sup_pri.role, hw->cap_sup_pri.id,
739 	       hw->cap_sup_pri.variant, hw->cap_sup_pri.bottom,
740 	       hw->cap_sup_pri.top);
741 
742 	/* Compatibility range, Station f/w supplier */
743 	result = hfa384x_drvr_getconfig(hw, HFA384x_RID_STASUPRANGE,
744 					&hw->cap_sup_sta,
745 					sizeof(hfa384x_caplevel_t));
746 	if (result) {
747 		netdev_err(wlandev->netdev, "Failed to retrieve STASUPRANGE\n");
748 		goto failed;
749 	}
750 
751 	/* get all the Compatibility range, station firmware supplier
752 	 * fields in byte order
753 	 */
754 	hw->cap_sup_sta.role = le16_to_cpu(hw->cap_sup_sta.role);
755 	hw->cap_sup_sta.id = le16_to_cpu(hw->cap_sup_sta.id);
756 	hw->cap_sup_sta.variant = le16_to_cpu(hw->cap_sup_sta.variant);
757 	hw->cap_sup_sta.bottom = le16_to_cpu(hw->cap_sup_sta.bottom);
758 	hw->cap_sup_sta.top = le16_to_cpu(hw->cap_sup_sta.top);
759 
760 	if (hw->cap_sup_sta.id == 0x04) {
761 		netdev_info(wlandev->netdev,
762 		       "STA:SUP:role=0x%02x:id=0x%02x:var=0x%02x:b/t=%d/%d\n",
763 		       hw->cap_sup_sta.role, hw->cap_sup_sta.id,
764 		       hw->cap_sup_sta.variant, hw->cap_sup_sta.bottom,
765 		       hw->cap_sup_sta.top);
766 	} else {
767 		netdev_info(wlandev->netdev,
768 		       "AP:SUP:role=0x%02x:id=0x%02x:var=0x%02x:b/t=%d/%d\n",
769 		       hw->cap_sup_sta.role, hw->cap_sup_sta.id,
770 		       hw->cap_sup_sta.variant, hw->cap_sup_sta.bottom,
771 		       hw->cap_sup_sta.top);
772 	}
773 
774 	/* Compatibility range, primary f/w actor, CFI supplier */
775 	result = hfa384x_drvr_getconfig(hw, HFA384x_RID_PRI_CFIACTRANGES,
776 					&hw->cap_act_pri_cfi,
777 					sizeof(hfa384x_caplevel_t));
778 	if (result) {
779 		netdev_err(wlandev->netdev, "Failed to retrieve PRI_CFIACTRANGES\n");
780 		goto failed;
781 	}
782 
783 	/* get all the Compatibility range, primary f/w actor, CFI supplier
784 	 * fields in byte order
785 	 */
786 	hw->cap_act_pri_cfi.role = le16_to_cpu(hw->cap_act_pri_cfi.role);
787 	hw->cap_act_pri_cfi.id = le16_to_cpu(hw->cap_act_pri_cfi.id);
788 	hw->cap_act_pri_cfi.variant = le16_to_cpu(hw->cap_act_pri_cfi.variant);
789 	hw->cap_act_pri_cfi.bottom = le16_to_cpu(hw->cap_act_pri_cfi.bottom);
790 	hw->cap_act_pri_cfi.top = le16_to_cpu(hw->cap_act_pri_cfi.top);
791 
792 	netdev_info(wlandev->netdev,
793 	       "PRI-CFI:ACT:role=0x%02x:id=0x%02x:var=0x%02x:b/t=%d/%d\n",
794 	       hw->cap_act_pri_cfi.role, hw->cap_act_pri_cfi.id,
795 	       hw->cap_act_pri_cfi.variant, hw->cap_act_pri_cfi.bottom,
796 	       hw->cap_act_pri_cfi.top);
797 
798 	/* Compatibility range, sta f/w actor, CFI supplier */
799 	result = hfa384x_drvr_getconfig(hw, HFA384x_RID_STA_CFIACTRANGES,
800 					&hw->cap_act_sta_cfi,
801 					sizeof(hfa384x_caplevel_t));
802 	if (result) {
803 		netdev_err(wlandev->netdev, "Failed to retrieve STA_CFIACTRANGES\n");
804 		goto failed;
805 	}
806 
807 	/* get all the Compatibility range, station f/w actor, CFI supplier
808 	 * fields in byte order
809 	 */
810 	hw->cap_act_sta_cfi.role = le16_to_cpu(hw->cap_act_sta_cfi.role);
811 	hw->cap_act_sta_cfi.id = le16_to_cpu(hw->cap_act_sta_cfi.id);
812 	hw->cap_act_sta_cfi.variant = le16_to_cpu(hw->cap_act_sta_cfi.variant);
813 	hw->cap_act_sta_cfi.bottom = le16_to_cpu(hw->cap_act_sta_cfi.bottom);
814 	hw->cap_act_sta_cfi.top = le16_to_cpu(hw->cap_act_sta_cfi.top);
815 
816 	netdev_info(wlandev->netdev,
817 	       "STA-CFI:ACT:role=0x%02x:id=0x%02x:var=0x%02x:b/t=%d/%d\n",
818 	       hw->cap_act_sta_cfi.role, hw->cap_act_sta_cfi.id,
819 	       hw->cap_act_sta_cfi.variant, hw->cap_act_sta_cfi.bottom,
820 	       hw->cap_act_sta_cfi.top);
821 
822 	/* Compatibility range, sta f/w actor, MFI supplier */
823 	result = hfa384x_drvr_getconfig(hw, HFA384x_RID_STA_MFIACTRANGES,
824 					&hw->cap_act_sta_mfi,
825 					sizeof(hfa384x_caplevel_t));
826 	if (result) {
827 		netdev_err(wlandev->netdev, "Failed to retrieve STA_MFIACTRANGES\n");
828 		goto failed;
829 	}
830 
831 	/* get all the Compatibility range, station f/w actor, MFI supplier
832 	 * fields in byte order
833 	 */
834 	hw->cap_act_sta_mfi.role = le16_to_cpu(hw->cap_act_sta_mfi.role);
835 	hw->cap_act_sta_mfi.id = le16_to_cpu(hw->cap_act_sta_mfi.id);
836 	hw->cap_act_sta_mfi.variant = le16_to_cpu(hw->cap_act_sta_mfi.variant);
837 	hw->cap_act_sta_mfi.bottom = le16_to_cpu(hw->cap_act_sta_mfi.bottom);
838 	hw->cap_act_sta_mfi.top = le16_to_cpu(hw->cap_act_sta_mfi.top);
839 
840 	netdev_info(wlandev->netdev,
841 	       "STA-MFI:ACT:role=0x%02x:id=0x%02x:var=0x%02x:b/t=%d/%d\n",
842 	       hw->cap_act_sta_mfi.role, hw->cap_act_sta_mfi.id,
843 	       hw->cap_act_sta_mfi.variant, hw->cap_act_sta_mfi.bottom,
844 	       hw->cap_act_sta_mfi.top);
845 
846 	/* Serial Number */
847 	result = hfa384x_drvr_getconfig(hw, HFA384x_RID_NICSERIALNUMBER,
848 					snum, HFA384x_RID_NICSERIALNUMBER_LEN);
849 	if (!result) {
850 		netdev_info(wlandev->netdev, "Prism2 card SN: %*pEhp\n",
851 			    HFA384x_RID_NICSERIALNUMBER_LEN, snum);
852 	} else {
853 		netdev_err(wlandev->netdev, "Failed to retrieve Prism2 Card SN\n");
854 		goto failed;
855 	}
856 
857 	/* Collect the MAC address */
858 	result = hfa384x_drvr_getconfig(hw, HFA384x_RID_CNFOWNMACADDR,
859 					wlandev->netdev->dev_addr, ETH_ALEN);
860 	if (result != 0) {
861 		netdev_err(wlandev->netdev, "Failed to retrieve mac address\n");
862 		goto failed;
863 	}
864 
865 	/* short preamble is always implemented */
866 	wlandev->nsdcaps |= P80211_NSDCAP_SHORT_PREAMBLE;
867 
868 	/* find out if hardware wep is implemented */
869 	hfa384x_drvr_getconfig16(hw, HFA384x_RID_PRIVACYOPTIMP, &temp);
870 	if (temp)
871 		wlandev->nsdcaps |= P80211_NSDCAP_HARDWAREWEP;
872 
873 	/* get the dBm Scaling constant */
874 	hfa384x_drvr_getconfig16(hw, HFA384x_RID_CNFDBMADJUST, &temp);
875 	hw->dbmadjust = temp;
876 
877 	/* Only enable scan by default on newer firmware */
878 	if (HFA384x_FIRMWARE_VERSION(hw->ident_sta_fw.major,
879 				     hw->ident_sta_fw.minor,
880 				     hw->ident_sta_fw.variant) <
881 	    HFA384x_FIRMWARE_VERSION(1, 5, 5)) {
882 		wlandev->nsdcaps |= P80211_NSDCAP_NOSCAN;
883 	}
884 
885 	/* TODO: Set any internally managed config items */
886 
887 	goto done;
888 failed:
889 	netdev_err(wlandev->netdev, "Failed, result=%d\n", result);
890 done:
891 	return result;
892 }
893 
894 /*
895  * prism2sta_globalsetup
896  *
897  * Set any global RIDs that we want to set at device activation.
898  *
899  * Arguments:
900  *	wlandev		wlan device structure
901  *
902  * Returns:
903  *	0	success
904  *	>0	f/w reported error
905  *	<0	driver reported error
906  *
907  * Side effects:
908  *
909  * Call context:
910  *	process thread
911  */
prism2sta_globalsetup(wlandevice_t * wlandev)912 static int prism2sta_globalsetup(wlandevice_t *wlandev)
913 {
914 	hfa384x_t *hw = (hfa384x_t *) wlandev->priv;
915 
916 	/* Set the maximum frame size */
917 	return hfa384x_drvr_setconfig16(hw, HFA384x_RID_CNFMAXDATALEN,
918 					WLAN_DATA_MAXLEN);
919 }
920 
prism2sta_setmulticast(wlandevice_t * wlandev,netdevice_t * dev)921 static int prism2sta_setmulticast(wlandevice_t *wlandev, netdevice_t *dev)
922 {
923 	int result = 0;
924 	hfa384x_t *hw = (hfa384x_t *) wlandev->priv;
925 
926 	u16 promisc;
927 
928 	/* If we're not ready, what's the point? */
929 	if (hw->state != HFA384x_STATE_RUNNING)
930 		goto exit;
931 
932 	if ((dev->flags & (IFF_PROMISC | IFF_ALLMULTI)) != 0)
933 		promisc = P80211ENUM_truth_true;
934 	else
935 		promisc = P80211ENUM_truth_false;
936 
937 	result =
938 	    hfa384x_drvr_setconfig16_async(hw, HFA384x_RID_PROMISCMODE,
939 					   promisc);
940 exit:
941 	return result;
942 }
943 
944 /*
945  * prism2sta_inf_handover
946  *
947  * Handles the receipt of a Handover info frame. Should only be present
948  * in APs only.
949  *
950  * Arguments:
951  *	wlandev		wlan device structure
952  *	inf		ptr to info frame (contents in hfa384x order)
953  *
954  * Returns:
955  *	nothing
956  *
957  * Side effects:
958  *
959  * Call context:
960  *	interrupt
961  */
prism2sta_inf_handover(wlandevice_t * wlandev,hfa384x_InfFrame_t * inf)962 static void prism2sta_inf_handover(wlandevice_t *wlandev,
963 				   hfa384x_InfFrame_t *inf)
964 {
965 	pr_debug("received infoframe:HANDOVER (unhandled)\n");
966 }
967 
968 /*
969  * prism2sta_inf_tallies
970  *
971  * Handles the receipt of a CommTallies info frame.
972  *
973  * Arguments:
974  *	wlandev		wlan device structure
975  *	inf		ptr to info frame (contents in hfa384x order)
976  *
977  * Returns:
978  *	nothing
979  *
980  * Side effects:
981  *
982  * Call context:
983  *	interrupt
984  */
prism2sta_inf_tallies(wlandevice_t * wlandev,hfa384x_InfFrame_t * inf)985 static void prism2sta_inf_tallies(wlandevice_t *wlandev,
986 				  hfa384x_InfFrame_t *inf)
987 {
988 	hfa384x_t *hw = (hfa384x_t *) wlandev->priv;
989 	u16 *src16;
990 	u32 *dst;
991 	u32 *src32;
992 	int i;
993 	int cnt;
994 
995 	/*
996 	 * Determine if these are 16-bit or 32-bit tallies, based on the
997 	 * record length of the info record.
998 	 */
999 
1000 	cnt = sizeof(hfa384x_CommTallies32_t) / sizeof(u32);
1001 	if (inf->framelen > 22) {
1002 		dst = (u32 *) &hw->tallies;
1003 		src32 = (u32 *) &inf->info.commtallies32;
1004 		for (i = 0; i < cnt; i++, dst++, src32++)
1005 			*dst += le32_to_cpu(*src32);
1006 	} else {
1007 		dst = (u32 *) &hw->tallies;
1008 		src16 = (u16 *) &inf->info.commtallies16;
1009 		for (i = 0; i < cnt; i++, dst++, src16++)
1010 			*dst += le16_to_cpu(*src16);
1011 	}
1012 }
1013 
1014 /*
1015  * prism2sta_inf_scanresults
1016  *
1017  * Handles the receipt of a Scan Results info frame.
1018  *
1019  * Arguments:
1020  *	wlandev		wlan device structure
1021  *	inf		ptr to info frame (contents in hfa384x order)
1022  *
1023  * Returns:
1024  *	nothing
1025  *
1026  * Side effects:
1027  *
1028  * Call context:
1029  *	interrupt
1030  */
prism2sta_inf_scanresults(wlandevice_t * wlandev,hfa384x_InfFrame_t * inf)1031 static void prism2sta_inf_scanresults(wlandevice_t *wlandev,
1032 				      hfa384x_InfFrame_t *inf)
1033 {
1034 
1035 	hfa384x_t *hw = (hfa384x_t *) wlandev->priv;
1036 	int nbss;
1037 	hfa384x_ScanResult_t *sr = &(inf->info.scanresult);
1038 	int i;
1039 	hfa384x_JoinRequest_data_t joinreq;
1040 	int result;
1041 
1042 	/* Get the number of results, first in bytes, then in results */
1043 	nbss = (inf->framelen * sizeof(u16)) -
1044 	    sizeof(inf->infotype) - sizeof(inf->info.scanresult.scanreason);
1045 	nbss /= sizeof(hfa384x_ScanResultSub_t);
1046 
1047 	/* Print em */
1048 	pr_debug("rx scanresults, reason=%d, nbss=%d:\n",
1049 		 inf->info.scanresult.scanreason, nbss);
1050 	for (i = 0; i < nbss; i++) {
1051 		pr_debug("chid=%d anl=%d sl=%d bcnint=%d\n",
1052 			 sr->result[i].chid,
1053 			 sr->result[i].anl,
1054 			 sr->result[i].sl, sr->result[i].bcnint);
1055 		pr_debug("  capinfo=0x%04x proberesp_rate=%d\n",
1056 			 sr->result[i].capinfo, sr->result[i].proberesp_rate);
1057 	}
1058 	/* issue a join request */
1059 	joinreq.channel = sr->result[0].chid;
1060 	memcpy(joinreq.bssid, sr->result[0].bssid, WLAN_BSSID_LEN);
1061 	result = hfa384x_drvr_setconfig(hw,
1062 					HFA384x_RID_JOINREQUEST,
1063 					&joinreq, HFA384x_RID_JOINREQUEST_LEN);
1064 	if (result) {
1065 		netdev_err(wlandev->netdev, "setconfig(joinreq) failed, result=%d\n",
1066 		       result);
1067 	}
1068 }
1069 
1070 /*
1071  * prism2sta_inf_hostscanresults
1072  *
1073  * Handles the receipt of a Scan Results info frame.
1074  *
1075  * Arguments:
1076  *	wlandev		wlan device structure
1077  *	inf		ptr to info frame (contents in hfa384x order)
1078  *
1079  * Returns:
1080  *	nothing
1081  *
1082  * Side effects:
1083  *
1084  * Call context:
1085  *	interrupt
1086  */
prism2sta_inf_hostscanresults(wlandevice_t * wlandev,hfa384x_InfFrame_t * inf)1087 static void prism2sta_inf_hostscanresults(wlandevice_t *wlandev,
1088 					  hfa384x_InfFrame_t *inf)
1089 {
1090 	hfa384x_t *hw = (hfa384x_t *) wlandev->priv;
1091 	int nbss;
1092 
1093 	nbss = (inf->framelen - 3) / 32;
1094 	pr_debug("Received %d hostscan results\n", nbss);
1095 
1096 	if (nbss > 32)
1097 		nbss = 32;
1098 
1099 	kfree(hw->scanresults);
1100 
1101 	hw->scanresults = kmemdup(inf, sizeof(hfa384x_InfFrame_t), GFP_ATOMIC);
1102 
1103 	if (nbss == 0)
1104 		nbss = -1;
1105 
1106 	/* Notify/wake the sleeping caller. */
1107 	hw->scanflag = nbss;
1108 	wake_up_interruptible(&hw->cmdq);
1109 };
1110 
1111 /*
1112  * prism2sta_inf_chinforesults
1113  *
1114  * Handles the receipt of a Channel Info Results info frame.
1115  *
1116  * Arguments:
1117  *	wlandev		wlan device structure
1118  *	inf		ptr to info frame (contents in hfa384x order)
1119  *
1120  * Returns:
1121  *	nothing
1122  *
1123  * Side effects:
1124  *
1125  * Call context:
1126  *	interrupt
1127  */
prism2sta_inf_chinforesults(wlandevice_t * wlandev,hfa384x_InfFrame_t * inf)1128 static void prism2sta_inf_chinforesults(wlandevice_t *wlandev,
1129 					hfa384x_InfFrame_t *inf)
1130 {
1131 	hfa384x_t *hw = (hfa384x_t *) wlandev->priv;
1132 	unsigned int i, n;
1133 
1134 	hw->channel_info.results.scanchannels =
1135 	    le16_to_cpu(inf->info.chinforesult.scanchannels);
1136 
1137 	for (i = 0, n = 0; i < HFA384x_CHINFORESULT_MAX; i++) {
1138 		hfa384x_ChInfoResultSub_t *result;
1139 		hfa384x_ChInfoResultSub_t *chinforesult;
1140 		int chan;
1141 
1142 		if (!(hw->channel_info.results.scanchannels & (1 << i)))
1143 			continue;
1144 
1145 		result = &inf->info.chinforesult.result[n];
1146 		chan = le16_to_cpu(result->chid) - 1;
1147 
1148 		if (chan < 0 || chan >= HFA384x_CHINFORESULT_MAX)
1149 			continue;
1150 
1151 		chinforesult = &hw->channel_info.results.result[chan];
1152 		chinforesult->chid = chan;
1153 		chinforesult->anl = le16_to_cpu(result->anl);
1154 		chinforesult->pnl = le16_to_cpu(result->pnl);
1155 		chinforesult->active = le16_to_cpu(result->active);
1156 
1157 		pr_debug("chinfo: channel %d, %s level (avg/peak)=%d/%d dB, pcf %d\n",
1158 			 chan + 1,
1159 			 (chinforesult->active & HFA384x_CHINFORESULT_BSSACTIVE)
1160 				? "signal" : "noise",
1161 			 chinforesult->anl, chinforesult->pnl,
1162 			 (chinforesult->active & HFA384x_CHINFORESULT_PCFACTIVE)
1163 				? 1 : 0);
1164 		n++;
1165 	}
1166 	atomic_set(&hw->channel_info.done, 2);
1167 
1168 	hw->channel_info.count = n;
1169 }
1170 
prism2sta_processing_defer(struct work_struct * data)1171 void prism2sta_processing_defer(struct work_struct *data)
1172 {
1173 	hfa384x_t *hw = container_of(data, struct hfa384x, link_bh);
1174 	wlandevice_t *wlandev = hw->wlandev;
1175 	hfa384x_bytestr32_t ssid;
1176 	int result;
1177 
1178 	/* First let's process the auth frames */
1179 	{
1180 		struct sk_buff *skb;
1181 		hfa384x_InfFrame_t *inf;
1182 
1183 		while ((skb = skb_dequeue(&hw->authq))) {
1184 			inf = (hfa384x_InfFrame_t *) skb->data;
1185 			prism2sta_inf_authreq_defer(wlandev, inf);
1186 		}
1187 
1188 	}
1189 
1190 	/* Now let's handle the linkstatus stuff */
1191 	if (hw->link_status == hw->link_status_new)
1192 		return;
1193 
1194 	hw->link_status = hw->link_status_new;
1195 
1196 	switch (hw->link_status) {
1197 	case HFA384x_LINK_NOTCONNECTED:
1198 		/* I'm currently assuming that this is the initial link
1199 		 * state.  It should only be possible immediately
1200 		 * following an Enable command.
1201 		 * Response:
1202 		 * Block Transmits, Ignore receives of data frames
1203 		 */
1204 		netif_carrier_off(wlandev->netdev);
1205 
1206 		netdev_info(wlandev->netdev, "linkstatus=NOTCONNECTED (unhandled)\n");
1207 		break;
1208 
1209 	case HFA384x_LINK_CONNECTED:
1210 		/* This one indicates a successful scan/join/auth/assoc.
1211 		 * When we have the full MLME complement, this event will
1212 		 * signify successful completion of both mlme_authenticate
1213 		 * and mlme_associate.  State management will get a little
1214 		 * ugly here.
1215 		 * Response:
1216 		 * Indicate authentication and/or association
1217 		 * Enable Transmits, Receives and pass up data frames
1218 		 */
1219 
1220 		netif_carrier_on(wlandev->netdev);
1221 
1222 		/* If we are joining a specific AP, set our
1223 		 * state and reset retries
1224 		 */
1225 		if (hw->join_ap == 1)
1226 			hw->join_ap = 2;
1227 		hw->join_retries = 60;
1228 
1229 		/* Don't call this in monitor mode */
1230 		if (wlandev->netdev->type == ARPHRD_ETHER) {
1231 			u16 portstatus;
1232 
1233 			netdev_info(wlandev->netdev, "linkstatus=CONNECTED\n");
1234 
1235 			/* For non-usb devices, we can use the sync versions */
1236 			/* Collect the BSSID, and set state to allow tx */
1237 
1238 			result = hfa384x_drvr_getconfig(hw,
1239 						HFA384x_RID_CURRENTBSSID,
1240 						wlandev->bssid,
1241 						WLAN_BSSID_LEN);
1242 			if (result) {
1243 				pr_debug
1244 				    ("getconfig(0x%02x) failed, result = %d\n",
1245 				     HFA384x_RID_CURRENTBSSID, result);
1246 				return;
1247 			}
1248 
1249 			result = hfa384x_drvr_getconfig(hw,
1250 							HFA384x_RID_CURRENTSSID,
1251 							&ssid, sizeof(ssid));
1252 			if (result) {
1253 				pr_debug
1254 				    ("getconfig(0x%02x) failed, result = %d\n",
1255 				     HFA384x_RID_CURRENTSSID, result);
1256 				return;
1257 			}
1258 			prism2mgmt_bytestr2pstr(
1259 					(struct hfa384x_bytestr *) &ssid,
1260 					(p80211pstrd_t *) &wlandev->ssid);
1261 
1262 			/* Collect the port status */
1263 			result = hfa384x_drvr_getconfig16(hw,
1264 							HFA384x_RID_PORTSTATUS,
1265 							&portstatus);
1266 			if (result) {
1267 				pr_debug
1268 				    ("getconfig(0x%02x) failed, result = %d\n",
1269 				     HFA384x_RID_PORTSTATUS, result);
1270 				return;
1271 			}
1272 			wlandev->macmode =
1273 			    (portstatus == HFA384x_PSTATUS_CONN_IBSS) ?
1274 			    WLAN_MACMODE_IBSS_STA : WLAN_MACMODE_ESS_STA;
1275 
1276 			/* signal back up to cfg80211 layer */
1277 			prism2_connect_result(wlandev, P80211ENUM_truth_false);
1278 
1279 			/* Get the ball rolling on the comms quality stuff */
1280 			prism2sta_commsqual_defer(&hw->commsqual_bh);
1281 		}
1282 		break;
1283 
1284 	case HFA384x_LINK_DISCONNECTED:
1285 		/* This one indicates that our association is gone.  We've
1286 		 * lost connection with the AP and/or been disassociated.
1287 		 * This indicates that the MAC has completely cleared it's
1288 		 * associated state.  We * should send a deauth indication
1289 		 * (implying disassoc) up * to the MLME.
1290 		 * Response:
1291 		 * Indicate Deauthentication
1292 		 * Block Transmits, Ignore receives of data frames
1293 		 */
1294 		if (wlandev->netdev->type == ARPHRD_ETHER)
1295 			netdev_info(wlandev->netdev,
1296 			       "linkstatus=DISCONNECTED (unhandled)\n");
1297 		wlandev->macmode = WLAN_MACMODE_NONE;
1298 
1299 		netif_carrier_off(wlandev->netdev);
1300 
1301 		/* signal back up to cfg80211 layer */
1302 		prism2_disconnected(wlandev);
1303 
1304 		break;
1305 
1306 	case HFA384x_LINK_AP_CHANGE:
1307 		/* This one indicates that the MAC has decided to and
1308 		 * successfully completed a change to another AP.  We
1309 		 * should probably implement a reassociation indication
1310 		 * in response to this one.  I'm thinking that the the
1311 		 * p80211 layer needs to be notified in case of
1312 		 * buffering/queueing issues.  User mode also needs to be
1313 		 * notified so that any BSS dependent elements can be
1314 		 * updated.
1315 		 * associated state.  We * should send a deauth indication
1316 		 * (implying disassoc) up * to the MLME.
1317 		 * Response:
1318 		 * Indicate Reassociation
1319 		 * Enable Transmits, Receives and pass up data frames
1320 		 */
1321 		netdev_info(wlandev->netdev, "linkstatus=AP_CHANGE\n");
1322 
1323 		result = hfa384x_drvr_getconfig(hw,
1324 						HFA384x_RID_CURRENTBSSID,
1325 						wlandev->bssid, WLAN_BSSID_LEN);
1326 		if (result) {
1327 			pr_debug("getconfig(0x%02x) failed, result = %d\n",
1328 				 HFA384x_RID_CURRENTBSSID, result);
1329 			return;
1330 		}
1331 
1332 		result = hfa384x_drvr_getconfig(hw,
1333 						HFA384x_RID_CURRENTSSID,
1334 						&ssid, sizeof(ssid));
1335 		if (result) {
1336 			pr_debug("getconfig(0x%02x) failed, result = %d\n",
1337 				 HFA384x_RID_CURRENTSSID, result);
1338 			return;
1339 		}
1340 		prism2mgmt_bytestr2pstr((struct hfa384x_bytestr *) &ssid,
1341 					(p80211pstrd_t *) &wlandev->ssid);
1342 
1343 		hw->link_status = HFA384x_LINK_CONNECTED;
1344 		netif_carrier_on(wlandev->netdev);
1345 
1346 		/* signal back up to cfg80211 layer */
1347 		prism2_roamed(wlandev);
1348 
1349 		break;
1350 
1351 	case HFA384x_LINK_AP_OUTOFRANGE:
1352 		/* This one indicates that the MAC has decided that the
1353 		 * AP is out of range, but hasn't found a better candidate
1354 		 * so the MAC maintains its "associated" state in case
1355 		 * we get back in range.  We should block transmits and
1356 		 * receives in this state.  Do we need an indication here?
1357 		 * Probably not since a polling user-mode element would
1358 		 * get this status from from p2PortStatus(FD40). What about
1359 		 * p80211?
1360 		 * Response:
1361 		 * Block Transmits, Ignore receives of data frames
1362 		 */
1363 		netdev_info(wlandev->netdev, "linkstatus=AP_OUTOFRANGE (unhandled)\n");
1364 
1365 		netif_carrier_off(wlandev->netdev);
1366 
1367 		break;
1368 
1369 	case HFA384x_LINK_AP_INRANGE:
1370 		/* This one indicates that the MAC has decided that the
1371 		 * AP is back in range.  We continue working with our
1372 		 * existing association.
1373 		 * Response:
1374 		 * Enable Transmits, Receives and pass up data frames
1375 		 */
1376 		netdev_info(wlandev->netdev, "linkstatus=AP_INRANGE\n");
1377 
1378 		hw->link_status = HFA384x_LINK_CONNECTED;
1379 		netif_carrier_on(wlandev->netdev);
1380 
1381 		break;
1382 
1383 	case HFA384x_LINK_ASSOCFAIL:
1384 		/* This one is actually a peer to CONNECTED.  We've
1385 		 * requested a join for a given SSID and optionally BSSID.
1386 		 * We can use this one to indicate authentication and
1387 		 * association failures.  The trick is going to be
1388 		 * 1) identifying the failure, and 2) state management.
1389 		 * Response:
1390 		 * Disable Transmits, Ignore receives of data frames
1391 		 */
1392 		if (hw->join_ap && --hw->join_retries > 0) {
1393 			hfa384x_JoinRequest_data_t joinreq;
1394 
1395 			joinreq = hw->joinreq;
1396 			/* Send the join request */
1397 			hfa384x_drvr_setconfig(hw,
1398 					       HFA384x_RID_JOINREQUEST,
1399 					       &joinreq,
1400 					       HFA384x_RID_JOINREQUEST_LEN);
1401 			netdev_info(wlandev->netdev,
1402 			       "linkstatus=ASSOCFAIL (re-submitting join)\n");
1403 		} else {
1404 			netdev_info(wlandev->netdev, "linkstatus=ASSOCFAIL (unhandled)\n");
1405 		}
1406 
1407 		netif_carrier_off(wlandev->netdev);
1408 
1409 		/* signal back up to cfg80211 layer */
1410 		prism2_connect_result(wlandev, P80211ENUM_truth_true);
1411 
1412 		break;
1413 
1414 	default:
1415 		/* This is bad, IO port problems? */
1416 		netdev_warn(wlandev->netdev,
1417 		       "unknown linkstatus=0x%02x\n", hw->link_status);
1418 		return;
1419 	}
1420 
1421 	wlandev->linkstatus = (hw->link_status == HFA384x_LINK_CONNECTED);
1422 }
1423 
1424 /*
1425  * prism2sta_inf_linkstatus
1426  *
1427  * Handles the receipt of a Link Status info frame.
1428  *
1429  * Arguments:
1430  *	wlandev		wlan device structure
1431  *	inf		ptr to info frame (contents in hfa384x order)
1432  *
1433  * Returns:
1434  *	nothing
1435  *
1436  * Side effects:
1437  *
1438  * Call context:
1439  *	interrupt
1440  */
prism2sta_inf_linkstatus(wlandevice_t * wlandev,hfa384x_InfFrame_t * inf)1441 static void prism2sta_inf_linkstatus(wlandevice_t *wlandev,
1442 				     hfa384x_InfFrame_t *inf)
1443 {
1444 	hfa384x_t *hw = (hfa384x_t *) wlandev->priv;
1445 
1446 	hw->link_status_new = le16_to_cpu(inf->info.linkstatus.linkstatus);
1447 
1448 	schedule_work(&hw->link_bh);
1449 }
1450 
1451 /*
1452  * prism2sta_inf_assocstatus
1453  *
1454  * Handles the receipt of an Association Status info frame. Should
1455  * be present in APs only.
1456  *
1457  * Arguments:
1458  *	wlandev		wlan device structure
1459  *	inf		ptr to info frame (contents in hfa384x order)
1460  *
1461  * Returns:
1462  *	nothing
1463  *
1464  * Side effects:
1465  *
1466  * Call context:
1467  *	interrupt
1468  */
prism2sta_inf_assocstatus(wlandevice_t * wlandev,hfa384x_InfFrame_t * inf)1469 static void prism2sta_inf_assocstatus(wlandevice_t *wlandev,
1470 				      hfa384x_InfFrame_t *inf)
1471 {
1472 	hfa384x_t *hw = (hfa384x_t *) wlandev->priv;
1473 	hfa384x_AssocStatus_t rec;
1474 	int i;
1475 
1476 	memcpy(&rec, &inf->info.assocstatus, sizeof(rec));
1477 	rec.assocstatus = le16_to_cpu(rec.assocstatus);
1478 	rec.reason = le16_to_cpu(rec.reason);
1479 
1480 	/*
1481 	 * Find the address in the list of authenticated stations.
1482 	 * If it wasn't found, then this address has not been previously
1483 	 * authenticated and something weird has happened if this is
1484 	 * anything other than an "authentication failed" message.
1485 	 * If the address was found, then set the "associated" flag for
1486 	 * that station, based on whether the station is associating or
1487 	 * losing its association.  Something weird has also happened
1488 	 * if we find the address in the list of authenticated stations
1489 	 * but we are getting an "authentication failed" message.
1490 	 */
1491 
1492 	for (i = 0; i < hw->authlist.cnt; i++)
1493 		if (ether_addr_equal(rec.sta_addr, hw->authlist.addr[i]))
1494 			break;
1495 
1496 	if (i >= hw->authlist.cnt) {
1497 		if (rec.assocstatus != HFA384x_ASSOCSTATUS_AUTHFAIL)
1498 			netdev_warn(wlandev->netdev,
1499 	"assocstatus info frame received for non-authenticated station.\n");
1500 	} else {
1501 		hw->authlist.assoc[i] =
1502 		    (rec.assocstatus == HFA384x_ASSOCSTATUS_STAASSOC ||
1503 		     rec.assocstatus == HFA384x_ASSOCSTATUS_REASSOC);
1504 
1505 		if (rec.assocstatus == HFA384x_ASSOCSTATUS_AUTHFAIL)
1506 			netdev_warn(wlandev->netdev,
1507 "authfail assocstatus info frame received for authenticated station.\n");
1508 	}
1509 }
1510 
1511 /*
1512  * prism2sta_inf_authreq
1513  *
1514  * Handles the receipt of an Authentication Request info frame. Should
1515  * be present in APs only.
1516  *
1517  * Arguments:
1518  *	wlandev		wlan device structure
1519  *	inf		ptr to info frame (contents in hfa384x order)
1520  *
1521  * Returns:
1522  *	nothing
1523  *
1524  * Side effects:
1525  *
1526  * Call context:
1527  *	interrupt
1528  *
1529  */
prism2sta_inf_authreq(wlandevice_t * wlandev,hfa384x_InfFrame_t * inf)1530 static void prism2sta_inf_authreq(wlandevice_t *wlandev,
1531 				  hfa384x_InfFrame_t *inf)
1532 {
1533 	hfa384x_t *hw = (hfa384x_t *) wlandev->priv;
1534 	struct sk_buff *skb;
1535 
1536 	skb = dev_alloc_skb(sizeof(*inf));
1537 	if (skb) {
1538 		skb_put(skb, sizeof(*inf));
1539 		memcpy(skb->data, inf, sizeof(*inf));
1540 		skb_queue_tail(&hw->authq, skb);
1541 		schedule_work(&hw->link_bh);
1542 	}
1543 }
1544 
prism2sta_inf_authreq_defer(wlandevice_t * wlandev,hfa384x_InfFrame_t * inf)1545 static void prism2sta_inf_authreq_defer(wlandevice_t *wlandev,
1546 					hfa384x_InfFrame_t *inf)
1547 {
1548 	hfa384x_t *hw = (hfa384x_t *) wlandev->priv;
1549 	hfa384x_authenticateStation_data_t rec;
1550 
1551 	int i, added, result, cnt;
1552 	u8 *addr;
1553 
1554 	/*
1555 	 * Build the AuthenticateStation record.  Initialize it for denying
1556 	 * authentication.
1557 	 */
1558 
1559 	ether_addr_copy(rec.address, inf->info.authreq.sta_addr);
1560 	rec.status = P80211ENUM_status_unspec_failure;
1561 
1562 	/*
1563 	 * Authenticate based on the access mode.
1564 	 */
1565 
1566 	switch (hw->accessmode) {
1567 	case WLAN_ACCESS_NONE:
1568 
1569 		/*
1570 		 * Deny all new authentications.  However, if a station
1571 		 * is ALREADY authenticated, then accept it.
1572 		 */
1573 
1574 		for (i = 0; i < hw->authlist.cnt; i++)
1575 			if (ether_addr_equal(rec.address,
1576 					     hw->authlist.addr[i])) {
1577 				rec.status = P80211ENUM_status_successful;
1578 				break;
1579 			}
1580 
1581 		break;
1582 
1583 	case WLAN_ACCESS_ALL:
1584 
1585 		/*
1586 		 * Allow all authentications.
1587 		 */
1588 
1589 		rec.status = P80211ENUM_status_successful;
1590 		break;
1591 
1592 	case WLAN_ACCESS_ALLOW:
1593 
1594 		/*
1595 		 * Only allow the authentication if the MAC address
1596 		 * is in the list of allowed addresses.
1597 		 *
1598 		 * Since this is the interrupt handler, we may be here
1599 		 * while the access list is in the middle of being
1600 		 * updated.  Choose the list which is currently okay.
1601 		 * See "prism2mib_priv_accessallow()" for details.
1602 		 */
1603 
1604 		if (hw->allow.modify == 0) {
1605 			cnt = hw->allow.cnt;
1606 			addr = hw->allow.addr[0];
1607 		} else {
1608 			cnt = hw->allow.cnt1;
1609 			addr = hw->allow.addr1[0];
1610 		}
1611 
1612 		for (i = 0; i < cnt; i++, addr += ETH_ALEN)
1613 			if (ether_addr_equal(rec.address, addr)) {
1614 				rec.status = P80211ENUM_status_successful;
1615 				break;
1616 			}
1617 
1618 		break;
1619 
1620 	case WLAN_ACCESS_DENY:
1621 
1622 		/*
1623 		 * Allow the authentication UNLESS the MAC address is
1624 		 * in the list of denied addresses.
1625 		 *
1626 		 * Since this is the interrupt handler, we may be here
1627 		 * while the access list is in the middle of being
1628 		 * updated.  Choose the list which is currently okay.
1629 		 * See "prism2mib_priv_accessdeny()" for details.
1630 		 */
1631 
1632 		if (hw->deny.modify == 0) {
1633 			cnt = hw->deny.cnt;
1634 			addr = hw->deny.addr[0];
1635 		} else {
1636 			cnt = hw->deny.cnt1;
1637 			addr = hw->deny.addr1[0];
1638 		}
1639 
1640 		rec.status = P80211ENUM_status_successful;
1641 
1642 		for (i = 0; i < cnt; i++, addr += ETH_ALEN)
1643 			if (ether_addr_equal(rec.address, addr)) {
1644 				rec.status = P80211ENUM_status_unspec_failure;
1645 				break;
1646 			}
1647 
1648 		break;
1649 	}
1650 
1651 	/*
1652 	 * If the authentication is okay, then add the MAC address to the
1653 	 * list of authenticated stations.  Don't add the address if it
1654 	 * is already in the list. (802.11b does not seem to disallow
1655 	 * a station from issuing an authentication request when the
1656 	 * station is already authenticated. Does this sort of thing
1657 	 * ever happen?  We might as well do the check just in case.)
1658 	 */
1659 
1660 	added = 0;
1661 
1662 	if (rec.status == P80211ENUM_status_successful) {
1663 		for (i = 0; i < hw->authlist.cnt; i++)
1664 			if (ether_addr_equal(rec.address,
1665 					     hw->authlist.addr[i]))
1666 				break;
1667 
1668 		if (i >= hw->authlist.cnt) {
1669 			if (hw->authlist.cnt >= WLAN_AUTH_MAX) {
1670 				rec.status = P80211ENUM_status_ap_full;
1671 			} else {
1672 				ether_addr_copy(
1673 					hw->authlist.addr[hw->authlist.cnt],
1674 					rec.address);
1675 				hw->authlist.cnt++;
1676 				added = 1;
1677 			}
1678 		}
1679 	}
1680 
1681 	/*
1682 	 * Send back the results of the authentication.  If this doesn't work,
1683 	 * then make sure to remove the address from the authenticated list if
1684 	 * it was added.
1685 	 */
1686 
1687 	rec.status = cpu_to_le16(rec.status);
1688 	rec.algorithm = inf->info.authreq.algorithm;
1689 
1690 	result = hfa384x_drvr_setconfig(hw, HFA384x_RID_AUTHENTICATESTA,
1691 					&rec, sizeof(rec));
1692 	if (result) {
1693 		if (added)
1694 			hw->authlist.cnt--;
1695 		netdev_err(wlandev->netdev,
1696 		       "setconfig(authenticatestation) failed, result=%d\n",
1697 		       result);
1698 	}
1699 }
1700 
1701 /*
1702  * prism2sta_inf_psusercnt
1703  *
1704  * Handles the receipt of a PowerSaveUserCount info frame. Should
1705  * be present in APs only.
1706  *
1707  * Arguments:
1708  *	wlandev		wlan device structure
1709  *	inf		ptr to info frame (contents in hfa384x order)
1710  *
1711  * Returns:
1712  *	nothing
1713  *
1714  * Side effects:
1715  *
1716  * Call context:
1717  *	interrupt
1718  */
prism2sta_inf_psusercnt(wlandevice_t * wlandev,hfa384x_InfFrame_t * inf)1719 static void prism2sta_inf_psusercnt(wlandevice_t *wlandev,
1720 				    hfa384x_InfFrame_t *inf)
1721 {
1722 	hfa384x_t *hw = (hfa384x_t *) wlandev->priv;
1723 
1724 	hw->psusercount = le16_to_cpu(inf->info.psusercnt.usercnt);
1725 }
1726 
1727 /*
1728  * prism2sta_ev_info
1729  *
1730  * Handles the Info event.
1731  *
1732  * Arguments:
1733  *	wlandev		wlan device structure
1734  *	inf		ptr to a generic info frame
1735  *
1736  * Returns:
1737  *	nothing
1738  *
1739  * Side effects:
1740  *
1741  * Call context:
1742  *	interrupt
1743  */
prism2sta_ev_info(wlandevice_t * wlandev,hfa384x_InfFrame_t * inf)1744 void prism2sta_ev_info(wlandevice_t *wlandev, hfa384x_InfFrame_t *inf)
1745 {
1746 	inf->infotype = le16_to_cpu(inf->infotype);
1747 	/* Dispatch */
1748 	switch (inf->infotype) {
1749 	case HFA384x_IT_HANDOVERADDR:
1750 		prism2sta_inf_handover(wlandev, inf);
1751 		break;
1752 	case HFA384x_IT_COMMTALLIES:
1753 		prism2sta_inf_tallies(wlandev, inf);
1754 		break;
1755 	case HFA384x_IT_HOSTSCANRESULTS:
1756 		prism2sta_inf_hostscanresults(wlandev, inf);
1757 		break;
1758 	case HFA384x_IT_SCANRESULTS:
1759 		prism2sta_inf_scanresults(wlandev, inf);
1760 		break;
1761 	case HFA384x_IT_CHINFORESULTS:
1762 		prism2sta_inf_chinforesults(wlandev, inf);
1763 		break;
1764 	case HFA384x_IT_LINKSTATUS:
1765 		prism2sta_inf_linkstatus(wlandev, inf);
1766 		break;
1767 	case HFA384x_IT_ASSOCSTATUS:
1768 		prism2sta_inf_assocstatus(wlandev, inf);
1769 		break;
1770 	case HFA384x_IT_AUTHREQ:
1771 		prism2sta_inf_authreq(wlandev, inf);
1772 		break;
1773 	case HFA384x_IT_PSUSERCNT:
1774 		prism2sta_inf_psusercnt(wlandev, inf);
1775 		break;
1776 	case HFA384x_IT_KEYIDCHANGED:
1777 		netdev_warn(wlandev->netdev, "Unhandled IT_KEYIDCHANGED\n");
1778 		break;
1779 	case HFA384x_IT_ASSOCREQ:
1780 		netdev_warn(wlandev->netdev, "Unhandled IT_ASSOCREQ\n");
1781 		break;
1782 	case HFA384x_IT_MICFAILURE:
1783 		netdev_warn(wlandev->netdev, "Unhandled IT_MICFAILURE\n");
1784 		break;
1785 	default:
1786 		netdev_warn(wlandev->netdev,
1787 		       "Unknown info type=0x%02x\n", inf->infotype);
1788 		break;
1789 	}
1790 }
1791 
1792 /*
1793  * prism2sta_ev_txexc
1794  *
1795  * Handles the TxExc event.  A Transmit Exception event indicates
1796  * that the MAC's TX process was unsuccessful - so the packet did
1797  * not get transmitted.
1798  *
1799  * Arguments:
1800  *	wlandev		wlan device structure
1801  *	status		tx frame status word
1802  *
1803  * Returns:
1804  *	nothing
1805  *
1806  * Side effects:
1807  *
1808  * Call context:
1809  *	interrupt
1810  */
prism2sta_ev_txexc(wlandevice_t * wlandev,u16 status)1811 void prism2sta_ev_txexc(wlandevice_t *wlandev, u16 status)
1812 {
1813 	pr_debug("TxExc status=0x%x.\n", status);
1814 }
1815 
1816 /*
1817  * prism2sta_ev_tx
1818  *
1819  * Handles the Tx event.
1820  *
1821  * Arguments:
1822  *	wlandev		wlan device structure
1823  *	status		tx frame status word
1824  * Returns:
1825  *	nothing
1826  *
1827  * Side effects:
1828  *
1829  * Call context:
1830  *	interrupt
1831  */
prism2sta_ev_tx(wlandevice_t * wlandev,u16 status)1832 void prism2sta_ev_tx(wlandevice_t *wlandev, u16 status)
1833 {
1834 	pr_debug("Tx Complete, status=0x%04x\n", status);
1835 	/* update linux network stats */
1836 	wlandev->netdev->stats.tx_packets++;
1837 }
1838 
1839 /*
1840  * prism2sta_ev_rx
1841  *
1842  * Handles the Rx event.
1843  *
1844  * Arguments:
1845  *	wlandev		wlan device structure
1846  *
1847  * Returns:
1848  *	nothing
1849  *
1850  * Side effects:
1851  *
1852  * Call context:
1853  *	interrupt
1854  */
prism2sta_ev_rx(wlandevice_t * wlandev,struct sk_buff * skb)1855 void prism2sta_ev_rx(wlandevice_t *wlandev, struct sk_buff *skb)
1856 {
1857 	p80211netdev_rx(wlandev, skb);
1858 }
1859 
1860 /*
1861  * prism2sta_ev_alloc
1862  *
1863  * Handles the Alloc event.
1864  *
1865  * Arguments:
1866  *	wlandev		wlan device structure
1867  *
1868  * Returns:
1869  *	nothing
1870  *
1871  * Side effects:
1872  *
1873  * Call context:
1874  *	interrupt
1875  */
prism2sta_ev_alloc(wlandevice_t * wlandev)1876 void prism2sta_ev_alloc(wlandevice_t *wlandev)
1877 {
1878 	netif_wake_queue(wlandev->netdev);
1879 }
1880 
1881 /*
1882 * create_wlan
1883 *
1884 * Called at module init time.  This creates the wlandevice_t structure
1885 * and initializes it with relevant bits.
1886 *
1887 * Arguments:
1888 *	none
1889 *
1890 * Returns:
1891 *	the created wlandevice_t structure.
1892 *
1893 * Side effects:
1894 *	also allocates the priv/hw structures.
1895 *
1896 * Call context:
1897 *	process thread
1898 *
1899 */
create_wlan(void)1900 static wlandevice_t *create_wlan(void)
1901 {
1902 	wlandevice_t *wlandev = NULL;
1903 	hfa384x_t *hw = NULL;
1904 
1905 	/* Alloc our structures */
1906 	wlandev = kzalloc(sizeof(wlandevice_t), GFP_KERNEL);
1907 	hw = kzalloc(sizeof(hfa384x_t), GFP_KERNEL);
1908 
1909 	if (!wlandev || !hw) {
1910 		pr_err("%s: Memory allocation failure.\n", dev_info);
1911 		kfree(wlandev);
1912 		kfree(hw);
1913 		return NULL;
1914 	}
1915 
1916 	/* Initialize the network device object. */
1917 	wlandev->nsdname = dev_info;
1918 	wlandev->msdstate = WLAN_MSD_HWPRESENT_PENDING;
1919 	wlandev->priv = hw;
1920 	wlandev->open = prism2sta_open;
1921 	wlandev->close = prism2sta_close;
1922 	wlandev->reset = prism2sta_reset;
1923 	wlandev->txframe = prism2sta_txframe;
1924 	wlandev->mlmerequest = prism2sta_mlmerequest;
1925 	wlandev->set_multicast_list = prism2sta_setmulticast;
1926 	wlandev->tx_timeout = hfa384x_tx_timeout;
1927 
1928 	wlandev->nsdcaps = P80211_NSDCAP_HWFRAGMENT | P80211_NSDCAP_AUTOJOIN;
1929 
1930 	/* Initialize the device private data structure. */
1931 	hw->dot11_desired_bss_type = 1;
1932 
1933 	return wlandev;
1934 }
1935 
prism2sta_commsqual_defer(struct work_struct * data)1936 void prism2sta_commsqual_defer(struct work_struct *data)
1937 {
1938 	hfa384x_t *hw = container_of(data, struct hfa384x, commsqual_bh);
1939 	wlandevice_t *wlandev = hw->wlandev;
1940 	hfa384x_bytestr32_t ssid;
1941 	struct p80211msg_dot11req_mibget msg;
1942 	p80211item_uint32_t *mibitem = (p80211item_uint32_t *)
1943 						&msg.mibattribute.data;
1944 	int result = 0;
1945 
1946 	if (hw->wlandev->hwremoved)
1947 		return;
1948 
1949 	/* we don't care if we're in AP mode */
1950 	if ((wlandev->macmode == WLAN_MACMODE_NONE) ||
1951 	    (wlandev->macmode == WLAN_MACMODE_ESS_AP)) {
1952 		return;
1953 	}
1954 
1955 	/* It only makes sense to poll these in non-IBSS */
1956 	if (wlandev->macmode != WLAN_MACMODE_IBSS_STA) {
1957 		result = hfa384x_drvr_getconfig(
1958 				hw, HFA384x_RID_DBMCOMMSQUALITY,
1959 				&hw->qual, HFA384x_RID_DBMCOMMSQUALITY_LEN);
1960 
1961 		if (result) {
1962 			netdev_err(wlandev->netdev, "error fetching commsqual\n");
1963 			return;
1964 		}
1965 
1966 		pr_debug("commsqual %d %d %d\n",
1967 			 le16_to_cpu(hw->qual.CQ_currBSS),
1968 			 le16_to_cpu(hw->qual.ASL_currBSS),
1969 			 le16_to_cpu(hw->qual.ANL_currFC));
1970 	}
1971 
1972 	/* Get the signal rate */
1973 	msg.msgcode = DIDmsg_dot11req_mibget;
1974 	mibitem->did = DIDmib_p2_p2MAC_p2CurrentTxRate;
1975 	result = p80211req_dorequest(wlandev, (u8 *) &msg);
1976 
1977 	if (result) {
1978 		pr_debug("get signal rate failed, result = %d\n",
1979 			 result);
1980 		return;
1981 	}
1982 
1983 	switch (mibitem->data) {
1984 	case HFA384x_RATEBIT_1:
1985 		hw->txrate = 10;
1986 		break;
1987 	case HFA384x_RATEBIT_2:
1988 		hw->txrate = 20;
1989 		break;
1990 	case HFA384x_RATEBIT_5dot5:
1991 		hw->txrate = 55;
1992 		break;
1993 	case HFA384x_RATEBIT_11:
1994 		hw->txrate = 110;
1995 		break;
1996 	default:
1997 		pr_debug("Bad ratebit (%d)\n", mibitem->data);
1998 	}
1999 
2000 	/* Lastly, we need to make sure the BSSID didn't change on us */
2001 	result = hfa384x_drvr_getconfig(hw,
2002 					HFA384x_RID_CURRENTBSSID,
2003 					wlandev->bssid, WLAN_BSSID_LEN);
2004 	if (result) {
2005 		pr_debug("getconfig(0x%02x) failed, result = %d\n",
2006 			 HFA384x_RID_CURRENTBSSID, result);
2007 		return;
2008 	}
2009 
2010 	result = hfa384x_drvr_getconfig(hw,
2011 					HFA384x_RID_CURRENTSSID,
2012 					&ssid, sizeof(ssid));
2013 	if (result) {
2014 		pr_debug("getconfig(0x%02x) failed, result = %d\n",
2015 			 HFA384x_RID_CURRENTSSID, result);
2016 		return;
2017 	}
2018 	prism2mgmt_bytestr2pstr((struct hfa384x_bytestr *) &ssid,
2019 				(p80211pstrd_t *) &wlandev->ssid);
2020 
2021 	/* Reschedule timer */
2022 	mod_timer(&hw->commsqual_timer, jiffies + HZ);
2023 }
2024 
prism2sta_commsqual_timer(unsigned long data)2025 void prism2sta_commsqual_timer(unsigned long data)
2026 {
2027 	hfa384x_t *hw = (hfa384x_t *) data;
2028 
2029 	schedule_work(&hw->commsqual_bh);
2030 }
2031