1/*
2 *  Copyright (C) 2003,2004 Aurelien Alleaume <slts@free.fr>
3 *
4 *  This program is free software; you can redistribute it and/or modify
5 *  it under the terms of the GNU General Public License as published by
6 *  the Free Software Foundation; either version 2 of the License
7 *
8 *  This program is distributed in the hope that it will be useful,
9 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
10 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
11 *  GNU General Public License for more details.
12 *
13 *  You should have received a copy of the GNU General Public License
14 *  along with this program; if not, write to the Free Software
15 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
16 *
17 */
18
19#include <linux/kernel.h>
20#include <linux/slab.h>
21
22#include "prismcompat.h"
23#include "islpci_dev.h"
24#include "islpci_mgt.h"
25#include "isl_oid.h"
26#include "oid_mgt.h"
27#include "isl_ioctl.h"
28
29/* to convert between channel and freq */
30static const int frequency_list_bg[] = { 2412, 2417, 2422, 2427, 2432,
31	2437, 2442, 2447, 2452, 2457, 2462, 2467, 2472, 2484
32};
33
34int
35channel_of_freq(int f)
36{
37	int c = 0;
38
39	if ((f >= 2412) && (f <= 2484)) {
40		while ((c < 14) && (f != frequency_list_bg[c]))
41			c++;
42		return (c >= 14) ? 0 : ++c;
43	} else if ((f >= (int) 5000) && (f <= (int) 6000)) {
44		return ( (f - 5000) / 5 );
45	} else
46		return 0;
47}
48
49#define OID_STRUCT(name,oid,s,t) [name] = {oid, 0, sizeof(s), t}
50#define OID_STRUCT_C(name,oid,s,t) OID_STRUCT(name,oid,s,t | OID_FLAG_CACHED)
51#define OID_U32(name,oid) OID_STRUCT(name,oid,u32,OID_TYPE_U32)
52#define OID_U32_C(name,oid) OID_STRUCT_C(name,oid,u32,OID_TYPE_U32)
53#define OID_STRUCT_MLME(name,oid) OID_STRUCT(name,oid,struct obj_mlme,OID_TYPE_MLME)
54#define OID_STRUCT_MLMEEX(name,oid) OID_STRUCT(name,oid,struct obj_mlmeex,OID_TYPE_MLMEEX)
55
56#define OID_UNKNOWN(name,oid) OID_STRUCT(name,oid,0,0)
57
58struct oid_t isl_oid[] = {
59	OID_STRUCT(GEN_OID_MACADDRESS, 0x00000000, u8[6], OID_TYPE_ADDR),
60	OID_U32(GEN_OID_LINKSTATE, 0x00000001),
61	OID_UNKNOWN(GEN_OID_WATCHDOG, 0x00000002),
62	OID_UNKNOWN(GEN_OID_MIBOP, 0x00000003),
63	OID_UNKNOWN(GEN_OID_OPTIONS, 0x00000004),
64	OID_UNKNOWN(GEN_OID_LEDCONFIG, 0x00000005),
65
66	/* 802.11 */
67	OID_U32_C(DOT11_OID_BSSTYPE, 0x10000000),
68	OID_STRUCT_C(DOT11_OID_BSSID, 0x10000001, u8[6], OID_TYPE_RAW),
69	OID_STRUCT_C(DOT11_OID_SSID, 0x10000002, struct obj_ssid,
70		     OID_TYPE_SSID),
71	OID_U32(DOT11_OID_STATE, 0x10000003),
72	OID_U32(DOT11_OID_AID, 0x10000004),
73	OID_STRUCT(DOT11_OID_COUNTRYSTRING, 0x10000005, u8[4], OID_TYPE_RAW),
74	OID_STRUCT_C(DOT11_OID_SSIDOVERRIDE, 0x10000006, struct obj_ssid,
75		     OID_TYPE_SSID),
76
77	OID_U32(DOT11_OID_MEDIUMLIMIT, 0x11000000),
78	OID_U32_C(DOT11_OID_BEACONPERIOD, 0x11000001),
79	OID_U32(DOT11_OID_DTIMPERIOD, 0x11000002),
80	OID_U32(DOT11_OID_ATIMWINDOW, 0x11000003),
81	OID_U32(DOT11_OID_LISTENINTERVAL, 0x11000004),
82	OID_U32(DOT11_OID_CFPPERIOD, 0x11000005),
83	OID_U32(DOT11_OID_CFPDURATION, 0x11000006),
84
85	OID_U32_C(DOT11_OID_AUTHENABLE, 0x12000000),
86	OID_U32_C(DOT11_OID_PRIVACYINVOKED, 0x12000001),
87	OID_U32_C(DOT11_OID_EXUNENCRYPTED, 0x12000002),
88	OID_U32_C(DOT11_OID_DEFKEYID, 0x12000003),
89	[DOT11_OID_DEFKEYX] = {0x12000004, 3, sizeof (struct obj_key),
90			       OID_FLAG_CACHED | OID_TYPE_KEY},	/* DOT11_OID_DEFKEY1,...DOT11_OID_DEFKEY4 */
91	OID_UNKNOWN(DOT11_OID_STAKEY, 0x12000008),
92	OID_U32(DOT11_OID_REKEYTHRESHOLD, 0x12000009),
93	OID_UNKNOWN(DOT11_OID_STASC, 0x1200000a),
94
95	OID_U32(DOT11_OID_PRIVTXREJECTED, 0x1a000000),
96	OID_U32(DOT11_OID_PRIVRXPLAIN, 0x1a000001),
97	OID_U32(DOT11_OID_PRIVRXFAILED, 0x1a000002),
98	OID_U32(DOT11_OID_PRIVRXNOKEY, 0x1a000003),
99
100	OID_U32_C(DOT11_OID_RTSTHRESH, 0x13000000),
101	OID_U32_C(DOT11_OID_FRAGTHRESH, 0x13000001),
102	OID_U32_C(DOT11_OID_SHORTRETRIES, 0x13000002),
103	OID_U32_C(DOT11_OID_LONGRETRIES, 0x13000003),
104	OID_U32_C(DOT11_OID_MAXTXLIFETIME, 0x13000004),
105	OID_U32(DOT11_OID_MAXRXLIFETIME, 0x13000005),
106	OID_U32(DOT11_OID_AUTHRESPTIMEOUT, 0x13000006),
107	OID_U32(DOT11_OID_ASSOCRESPTIMEOUT, 0x13000007),
108
109	OID_UNKNOWN(DOT11_OID_ALOFT_TABLE, 0x1d000000),
110	OID_UNKNOWN(DOT11_OID_ALOFT_CTRL_TABLE, 0x1d000001),
111	OID_UNKNOWN(DOT11_OID_ALOFT_RETREAT, 0x1d000002),
112	OID_UNKNOWN(DOT11_OID_ALOFT_PROGRESS, 0x1d000003),
113	OID_U32(DOT11_OID_ALOFT_FIXEDRATE, 0x1d000004),
114	OID_UNKNOWN(DOT11_OID_ALOFT_RSSIGRAPH, 0x1d000005),
115	OID_UNKNOWN(DOT11_OID_ALOFT_CONFIG, 0x1d000006),
116
117	[DOT11_OID_VDCFX] = {0x1b000000, 7, 0, 0},
118	OID_U32(DOT11_OID_MAXFRAMEBURST, 0x1b000008),
119
120	OID_U32(DOT11_OID_PSM, 0x14000000),
121	OID_U32(DOT11_OID_CAMTIMEOUT, 0x14000001),
122	OID_U32(DOT11_OID_RECEIVEDTIMS, 0x14000002),
123	OID_U32(DOT11_OID_ROAMPREFERENCE, 0x14000003),
124
125	OID_U32(DOT11_OID_BRIDGELOCAL, 0x15000000),
126	OID_U32(DOT11_OID_CLIENTS, 0x15000001),
127	OID_U32(DOT11_OID_CLIENTSASSOCIATED, 0x15000002),
128	[DOT11_OID_CLIENTX] = {0x15000003, 2006, 0, 0},	/* DOT11_OID_CLIENTX,...DOT11_OID_CLIENT2007 */
129
130	OID_STRUCT(DOT11_OID_CLIENTFIND, 0x150007DB, u8[6], OID_TYPE_ADDR),
131	OID_STRUCT(DOT11_OID_WDSLINKADD, 0x150007DC, u8[6], OID_TYPE_ADDR),
132	OID_STRUCT(DOT11_OID_WDSLINKREMOVE, 0x150007DD, u8[6], OID_TYPE_ADDR),
133	OID_STRUCT(DOT11_OID_EAPAUTHSTA, 0x150007DE, u8[6], OID_TYPE_ADDR),
134	OID_STRUCT(DOT11_OID_EAPUNAUTHSTA, 0x150007DF, u8[6], OID_TYPE_ADDR),
135	OID_U32_C(DOT11_OID_DOT1XENABLE, 0x150007E0),
136	OID_UNKNOWN(DOT11_OID_MICFAILURE, 0x150007E1),
137	OID_UNKNOWN(DOT11_OID_REKEYINDICATE, 0x150007E2),
138
139	OID_U32(DOT11_OID_MPDUTXSUCCESSFUL, 0x16000000),
140	OID_U32(DOT11_OID_MPDUTXONERETRY, 0x16000001),
141	OID_U32(DOT11_OID_MPDUTXMULTIPLERETRIES, 0x16000002),
142	OID_U32(DOT11_OID_MPDUTXFAILED, 0x16000003),
143	OID_U32(DOT11_OID_MPDURXSUCCESSFUL, 0x16000004),
144	OID_U32(DOT11_OID_MPDURXDUPS, 0x16000005),
145	OID_U32(DOT11_OID_RTSSUCCESSFUL, 0x16000006),
146	OID_U32(DOT11_OID_RTSFAILED, 0x16000007),
147	OID_U32(DOT11_OID_ACKFAILED, 0x16000008),
148	OID_U32(DOT11_OID_FRAMERECEIVES, 0x16000009),
149	OID_U32(DOT11_OID_FRAMEERRORS, 0x1600000A),
150	OID_U32(DOT11_OID_FRAMEABORTS, 0x1600000B),
151	OID_U32(DOT11_OID_FRAMEABORTSPHY, 0x1600000C),
152
153	OID_U32(DOT11_OID_SLOTTIME, 0x17000000),
154	OID_U32(DOT11_OID_CWMIN, 0x17000001),
155	OID_U32(DOT11_OID_CWMAX, 0x17000002),
156	OID_U32(DOT11_OID_ACKWINDOW, 0x17000003),
157	OID_U32(DOT11_OID_ANTENNARX, 0x17000004),
158	OID_U32(DOT11_OID_ANTENNATX, 0x17000005),
159	OID_U32(DOT11_OID_ANTENNADIVERSITY, 0x17000006),
160	OID_U32_C(DOT11_OID_CHANNEL, 0x17000007),
161	OID_U32_C(DOT11_OID_EDTHRESHOLD, 0x17000008),
162	OID_U32(DOT11_OID_PREAMBLESETTINGS, 0x17000009),
163	OID_STRUCT(DOT11_OID_RATES, 0x1700000A, u8[IWMAX_BITRATES + 1],
164		   OID_TYPE_RAW),
165	OID_U32(DOT11_OID_CCAMODESUPPORTED, 0x1700000B),
166	OID_U32(DOT11_OID_CCAMODE, 0x1700000C),
167	OID_UNKNOWN(DOT11_OID_RSSIVECTOR, 0x1700000D),
168	OID_UNKNOWN(DOT11_OID_OUTPUTPOWERTABLE, 0x1700000E),
169	OID_U32(DOT11_OID_OUTPUTPOWER, 0x1700000F),
170	OID_STRUCT(DOT11_OID_SUPPORTEDRATES, 0x17000010,
171		   u8[IWMAX_BITRATES + 1], OID_TYPE_RAW),
172	OID_U32_C(DOT11_OID_FREQUENCY, 0x17000011),
173	[DOT11_OID_SUPPORTEDFREQUENCIES] =
174	    {0x17000012, 0, sizeof (struct obj_frequencies)
175	     + sizeof (u16) * IWMAX_FREQ, OID_TYPE_FREQUENCIES},
176
177	OID_U32(DOT11_OID_NOISEFLOOR, 0x17000013),
178	OID_STRUCT(DOT11_OID_FREQUENCYACTIVITY, 0x17000014, u8[IWMAX_FREQ + 1],
179		   OID_TYPE_RAW),
180	OID_UNKNOWN(DOT11_OID_IQCALIBRATIONTABLE, 0x17000015),
181	OID_U32(DOT11_OID_NONERPPROTECTION, 0x17000016),
182	OID_U32(DOT11_OID_SLOTSETTINGS, 0x17000017),
183	OID_U32(DOT11_OID_NONERPTIMEOUT, 0x17000018),
184	OID_U32(DOT11_OID_PROFILES, 0x17000019),
185	OID_STRUCT(DOT11_OID_EXTENDEDRATES, 0x17000020,
186		   u8[IWMAX_BITRATES + 1], OID_TYPE_RAW),
187
188	OID_STRUCT_MLME(DOT11_OID_DEAUTHENTICATE, 0x18000000),
189	OID_STRUCT_MLME(DOT11_OID_AUTHENTICATE, 0x18000001),
190	OID_STRUCT_MLME(DOT11_OID_DISASSOCIATE, 0x18000002),
191	OID_STRUCT_MLME(DOT11_OID_ASSOCIATE, 0x18000003),
192	OID_UNKNOWN(DOT11_OID_SCAN, 0x18000004),
193	OID_STRUCT_MLMEEX(DOT11_OID_BEACON, 0x18000005),
194	OID_STRUCT_MLMEEX(DOT11_OID_PROBE, 0x18000006),
195	OID_STRUCT_MLMEEX(DOT11_OID_DEAUTHENTICATEEX, 0x18000007),
196	OID_STRUCT_MLMEEX(DOT11_OID_AUTHENTICATEEX, 0x18000008),
197	OID_STRUCT_MLMEEX(DOT11_OID_DISASSOCIATEEX, 0x18000009),
198	OID_STRUCT_MLMEEX(DOT11_OID_ASSOCIATEEX, 0x1800000A),
199	OID_STRUCT_MLMEEX(DOT11_OID_REASSOCIATE, 0x1800000B),
200	OID_STRUCT_MLMEEX(DOT11_OID_REASSOCIATEEX, 0x1800000C),
201
202	OID_U32(DOT11_OID_NONERPSTATUS, 0x1E000000),
203
204	OID_U32(DOT11_OID_STATIMEOUT, 0x19000000),
205	OID_U32_C(DOT11_OID_MLMEAUTOLEVEL, 0x19000001),
206	OID_U32(DOT11_OID_BSSTIMEOUT, 0x19000002),
207	[DOT11_OID_ATTACHMENT] = {0x19000003, 0,
208		sizeof(struct obj_attachment), OID_TYPE_ATTACH},
209	OID_STRUCT_C(DOT11_OID_PSMBUFFER, 0x19000004, struct obj_buffer,
210		     OID_TYPE_BUFFER),
211
212	OID_U32(DOT11_OID_BSSS, 0x1C000000),
213	[DOT11_OID_BSSX] = {0x1C000001, 63, sizeof (struct obj_bss),
214			    OID_TYPE_BSS},	/*DOT11_OID_BSS1,...,DOT11_OID_BSS64 */
215	OID_STRUCT(DOT11_OID_BSSFIND, 0x1C000042, struct obj_bss, OID_TYPE_BSS),
216	[DOT11_OID_BSSLIST] = {0x1C000043, 0, sizeof (struct
217						      obj_bsslist) +
218			       sizeof (struct obj_bss[IWMAX_BSS]),
219			       OID_TYPE_BSSLIST},
220
221	OID_UNKNOWN(OID_INL_TUNNEL, 0xFF020000),
222	OID_UNKNOWN(OID_INL_MEMADDR, 0xFF020001),
223	OID_UNKNOWN(OID_INL_MEMORY, 0xFF020002),
224	OID_U32_C(OID_INL_MODE, 0xFF020003),
225	OID_UNKNOWN(OID_INL_COMPONENT_NR, 0xFF020004),
226	OID_STRUCT(OID_INL_VERSION, 0xFF020005, u8[8], OID_TYPE_RAW),
227	OID_UNKNOWN(OID_INL_INTERFACE_ID, 0xFF020006),
228	OID_UNKNOWN(OID_INL_COMPONENT_ID, 0xFF020007),
229	OID_U32_C(OID_INL_CONFIG, 0xFF020008),
230	OID_U32_C(OID_INL_DOT11D_CONFORMANCE, 0xFF02000C),
231	OID_U32(OID_INL_PHYCAPABILITIES, 0xFF02000D),
232	OID_U32_C(OID_INL_OUTPUTPOWER, 0xFF02000F),
233
234};
235
236int
237mgt_init(islpci_private *priv)
238{
239	int i;
240
241	priv->mib = kcalloc(OID_NUM_LAST, sizeof (void *), GFP_KERNEL);
242	if (!priv->mib)
243		return -ENOMEM;
244
245	/* Alloc the cache */
246	for (i = 0; i < OID_NUM_LAST; i++) {
247		if (isl_oid[i].flags & OID_FLAG_CACHED) {
248			priv->mib[i] = kzalloc(isl_oid[i].size *
249					       (isl_oid[i].range + 1),
250					       GFP_KERNEL);
251			if (!priv->mib[i])
252				return -ENOMEM;
253		} else
254			priv->mib[i] = NULL;
255	}
256
257	init_rwsem(&priv->mib_sem);
258	prism54_mib_init(priv);
259
260	return 0;
261}
262
263void
264mgt_clean(islpci_private *priv)
265{
266	int i;
267
268	if (!priv->mib)
269		return;
270	for (i = 0; i < OID_NUM_LAST; i++) {
271		kfree(priv->mib[i]);
272		priv->mib[i] = NULL;
273	}
274	kfree(priv->mib);
275	priv->mib = NULL;
276}
277
278void
279mgt_le_to_cpu(int type, void *data)
280{
281	switch (type) {
282	case OID_TYPE_U32:
283		*(u32 *) data = le32_to_cpu(*(u32 *) data);
284		break;
285	case OID_TYPE_BUFFER:{
286			struct obj_buffer *buff = data;
287			buff->size = le32_to_cpu(buff->size);
288			buff->addr = le32_to_cpu(buff->addr);
289			break;
290		}
291	case OID_TYPE_BSS:{
292			struct obj_bss *bss = data;
293			bss->age = le16_to_cpu(bss->age);
294			bss->channel = le16_to_cpu(bss->channel);
295			bss->capinfo = le16_to_cpu(bss->capinfo);
296			bss->rates = le16_to_cpu(bss->rates);
297			bss->basic_rates = le16_to_cpu(bss->basic_rates);
298			break;
299		}
300	case OID_TYPE_BSSLIST:{
301			struct obj_bsslist *list = data;
302			int i;
303			list->nr = le32_to_cpu(list->nr);
304			for (i = 0; i < list->nr; i++)
305				mgt_le_to_cpu(OID_TYPE_BSS, &list->bsslist[i]);
306			break;
307		}
308	case OID_TYPE_FREQUENCIES:{
309			struct obj_frequencies *freq = data;
310			int i;
311			freq->nr = le16_to_cpu(freq->nr);
312			for (i = 0; i < freq->nr; i++)
313				freq->mhz[i] = le16_to_cpu(freq->mhz[i]);
314			break;
315		}
316	case OID_TYPE_MLME:{
317			struct obj_mlme *mlme = data;
318			mlme->id = le16_to_cpu(mlme->id);
319			mlme->state = le16_to_cpu(mlme->state);
320			mlme->code = le16_to_cpu(mlme->code);
321			break;
322		}
323	case OID_TYPE_MLMEEX:{
324			struct obj_mlmeex *mlme = data;
325			mlme->id = le16_to_cpu(mlme->id);
326			mlme->state = le16_to_cpu(mlme->state);
327			mlme->code = le16_to_cpu(mlme->code);
328			mlme->size = le16_to_cpu(mlme->size);
329			break;
330		}
331	case OID_TYPE_ATTACH:{
332			struct obj_attachment *attach = data;
333			attach->id = le16_to_cpu(attach->id);
334			attach->size = le16_to_cpu(attach->size);
335			break;
336	}
337	case OID_TYPE_SSID:
338	case OID_TYPE_KEY:
339	case OID_TYPE_ADDR:
340	case OID_TYPE_RAW:
341		break;
342	default:
343		BUG();
344	}
345}
346
347static void
348mgt_cpu_to_le(int type, void *data)
349{
350	switch (type) {
351	case OID_TYPE_U32:
352		*(u32 *) data = cpu_to_le32(*(u32 *) data);
353		break;
354	case OID_TYPE_BUFFER:{
355			struct obj_buffer *buff = data;
356			buff->size = cpu_to_le32(buff->size);
357			buff->addr = cpu_to_le32(buff->addr);
358			break;
359		}
360	case OID_TYPE_BSS:{
361			struct obj_bss *bss = data;
362			bss->age = cpu_to_le16(bss->age);
363			bss->channel = cpu_to_le16(bss->channel);
364			bss->capinfo = cpu_to_le16(bss->capinfo);
365			bss->rates = cpu_to_le16(bss->rates);
366			bss->basic_rates = cpu_to_le16(bss->basic_rates);
367			break;
368		}
369	case OID_TYPE_BSSLIST:{
370			struct obj_bsslist *list = data;
371			int i;
372			list->nr = cpu_to_le32(list->nr);
373			for (i = 0; i < list->nr; i++)
374				mgt_cpu_to_le(OID_TYPE_BSS, &list->bsslist[i]);
375			break;
376		}
377	case OID_TYPE_FREQUENCIES:{
378			struct obj_frequencies *freq = data;
379			int i;
380			freq->nr = cpu_to_le16(freq->nr);
381			for (i = 0; i < freq->nr; i++)
382				freq->mhz[i] = cpu_to_le16(freq->mhz[i]);
383			break;
384		}
385	case OID_TYPE_MLME:{
386			struct obj_mlme *mlme = data;
387			mlme->id = cpu_to_le16(mlme->id);
388			mlme->state = cpu_to_le16(mlme->state);
389			mlme->code = cpu_to_le16(mlme->code);
390			break;
391		}
392	case OID_TYPE_MLMEEX:{
393			struct obj_mlmeex *mlme = data;
394			mlme->id = cpu_to_le16(mlme->id);
395			mlme->state = cpu_to_le16(mlme->state);
396			mlme->code = cpu_to_le16(mlme->code);
397			mlme->size = cpu_to_le16(mlme->size);
398			break;
399		}
400	case OID_TYPE_ATTACH:{
401			struct obj_attachment *attach = data;
402			attach->id = cpu_to_le16(attach->id);
403			attach->size = cpu_to_le16(attach->size);
404			break;
405	}
406	case OID_TYPE_SSID:
407	case OID_TYPE_KEY:
408	case OID_TYPE_ADDR:
409	case OID_TYPE_RAW:
410		break;
411	default:
412		BUG();
413	}
414}
415
416/* Note : data is modified during this function */
417
418int
419mgt_set_request(islpci_private *priv, enum oid_num_t n, int extra, void *data)
420{
421	int ret = 0;
422	struct islpci_mgmtframe *response = NULL;
423	int response_op = PIMFOR_OP_ERROR;
424	int dlen;
425	void *cache, *_data = data;
426	u32 oid;
427
428	BUG_ON(OID_NUM_LAST <= n);
429	BUG_ON(extra > isl_oid[n].range);
430
431	if (!priv->mib)
432		/* memory has been freed */
433		return -1;
434
435	dlen = isl_oid[n].size;
436	cache = priv->mib[n];
437	cache += (cache ? extra * dlen : 0);
438	oid = isl_oid[n].oid + extra;
439
440	if (_data == NULL)
441		/* we are requested to re-set a cached value */
442		_data = cache;
443	else
444		mgt_cpu_to_le(isl_oid[n].flags & OID_FLAG_TYPE, _data);
445	/* If we are going to write to the cache, we don't want anyone to read
446	 * it -> acquire write lock.
447	 * Else we could acquire a read lock to be sure we don't bother the
448	 * commit process (which takes a write lock). But I'm not sure if it's
449	 * needed.
450	 */
451	if (cache)
452		down_write(&priv->mib_sem);
453
454	if (islpci_get_state(priv) >= PRV_STATE_READY) {
455		ret = islpci_mgt_transaction(priv->ndev, PIMFOR_OP_SET, oid,
456					     _data, dlen, &response);
457		if (!ret) {
458			response_op = response->header->operation;
459			islpci_mgt_release(response);
460		}
461		if (ret || response_op == PIMFOR_OP_ERROR)
462			ret = -EIO;
463	} else if (!cache)
464		ret = -EIO;
465
466	if (cache) {
467		if (!ret && data)
468			memcpy(cache, _data, dlen);
469		up_write(&priv->mib_sem);
470	}
471
472	/* re-set given data to what it was */
473	if (data)
474		mgt_le_to_cpu(isl_oid[n].flags & OID_FLAG_TYPE, data);
475
476	return ret;
477}
478
479/* None of these are cached */
480int
481mgt_set_varlen(islpci_private *priv, enum oid_num_t n, void *data, int extra_len)
482{
483	int ret = 0;
484	struct islpci_mgmtframe *response;
485	int response_op = PIMFOR_OP_ERROR;
486	int dlen;
487	u32 oid;
488
489	BUG_ON(OID_NUM_LAST <= n);
490
491	dlen = isl_oid[n].size;
492	oid = isl_oid[n].oid;
493
494	mgt_cpu_to_le(isl_oid[n].flags & OID_FLAG_TYPE, data);
495
496	if (islpci_get_state(priv) >= PRV_STATE_READY) {
497		ret = islpci_mgt_transaction(priv->ndev, PIMFOR_OP_SET, oid,
498					     data, dlen + extra_len, &response);
499		if (!ret) {
500			response_op = response->header->operation;
501			islpci_mgt_release(response);
502		}
503		if (ret || response_op == PIMFOR_OP_ERROR)
504			ret = -EIO;
505	} else
506		ret = -EIO;
507
508	/* re-set given data to what it was */
509	if (data)
510		mgt_le_to_cpu(isl_oid[n].flags & OID_FLAG_TYPE, data);
511
512	return ret;
513}
514
515int
516mgt_get_request(islpci_private *priv, enum oid_num_t n, int extra, void *data,
517		union oid_res_t *res)
518{
519
520	int ret = -EIO;
521	int reslen = 0;
522	struct islpci_mgmtframe *response = NULL;
523
524	int dlen;
525	void *cache, *_res = NULL;
526	u32 oid;
527
528	BUG_ON(OID_NUM_LAST <= n);
529	BUG_ON(extra > isl_oid[n].range);
530
531	res->ptr = NULL;
532
533	if (!priv->mib)
534		/* memory has been freed */
535		return -1;
536
537	dlen = isl_oid[n].size;
538	cache = priv->mib[n];
539	cache += cache ? extra * dlen : 0;
540	oid = isl_oid[n].oid + extra;
541	reslen = dlen;
542
543	if (cache)
544		down_read(&priv->mib_sem);
545
546	if (islpci_get_state(priv) >= PRV_STATE_READY) {
547		ret = islpci_mgt_transaction(priv->ndev, PIMFOR_OP_GET,
548					     oid, data, dlen, &response);
549		if (ret || !response ||
550		    response->header->operation == PIMFOR_OP_ERROR) {
551			if (response)
552				islpci_mgt_release(response);
553			ret = -EIO;
554		}
555		if (!ret) {
556			_res = response->data;
557			reslen = response->header->length;
558		}
559	} else if (cache) {
560		_res = cache;
561		ret = 0;
562	}
563	if ((isl_oid[n].flags & OID_FLAG_TYPE) == OID_TYPE_U32)
564		res->u = ret ? 0 : le32_to_cpu(*(u32 *) _res);
565	else {
566		res->ptr = kmalloc(reslen, GFP_KERNEL);
567		BUG_ON(res->ptr == NULL);
568		if (ret)
569			memset(res->ptr, 0, reslen);
570		else {
571			memcpy(res->ptr, _res, reslen);
572			mgt_le_to_cpu(isl_oid[n].flags & OID_FLAG_TYPE,
573				      res->ptr);
574		}
575	}
576	if (cache)
577		up_read(&priv->mib_sem);
578
579	if (response && !ret)
580		islpci_mgt_release(response);
581
582	if (reslen > isl_oid[n].size)
583		printk(KERN_DEBUG
584		       "mgt_get_request(0x%x): received data length was bigger "
585		       "than expected (%d > %d). Memory is probably corrupted...",
586		       oid, reslen, isl_oid[n].size);
587
588	return ret;
589}
590
591/* lock outside */
592int
593mgt_commit_list(islpci_private *priv, enum oid_num_t *l, int n)
594{
595	int i, ret = 0;
596	struct islpci_mgmtframe *response;
597
598	for (i = 0; i < n; i++) {
599		struct oid_t *t = &(isl_oid[l[i]]);
600		void *data = priv->mib[l[i]];
601		int j = 0;
602		u32 oid = t->oid;
603		BUG_ON(data == NULL);
604		while (j <= t->range) {
605			int r = islpci_mgt_transaction(priv->ndev, PIMFOR_OP_SET,
606						      oid, data, t->size,
607						      &response);
608			if (response) {
609				r |= (response->header->operation == PIMFOR_OP_ERROR);
610				islpci_mgt_release(response);
611			}
612			if (r)
613				printk(KERN_ERR "%s: mgt_commit_list: failure. "
614					"oid=%08x err=%d\n",
615					priv->ndev->name, oid, r);
616			ret |= r;
617			j++;
618			oid++;
619			data += t->size;
620		}
621	}
622	return ret;
623}
624
625/* Lock outside */
626
627void
628mgt_set(islpci_private *priv, enum oid_num_t n, void *data)
629{
630	BUG_ON(OID_NUM_LAST <= n);
631	BUG_ON(priv->mib[n] == NULL);
632
633	memcpy(priv->mib[n], data, isl_oid[n].size);
634	mgt_cpu_to_le(isl_oid[n].flags & OID_FLAG_TYPE, priv->mib[n]);
635}
636
637void
638mgt_get(islpci_private *priv, enum oid_num_t n, void *res)
639{
640	BUG_ON(OID_NUM_LAST <= n);
641	BUG_ON(priv->mib[n] == NULL);
642	BUG_ON(res == NULL);
643
644	memcpy(res, priv->mib[n], isl_oid[n].size);
645	mgt_le_to_cpu(isl_oid[n].flags & OID_FLAG_TYPE, res);
646}
647
648/* Commits the cache. Lock outside. */
649
650static enum oid_num_t commit_part1[] = {
651	OID_INL_CONFIG,
652	OID_INL_MODE,
653	DOT11_OID_BSSTYPE,
654	DOT11_OID_CHANNEL,
655	DOT11_OID_MLMEAUTOLEVEL
656};
657
658static enum oid_num_t commit_part2[] = {
659	DOT11_OID_SSID,
660	DOT11_OID_PSMBUFFER,
661	DOT11_OID_AUTHENABLE,
662	DOT11_OID_PRIVACYINVOKED,
663	DOT11_OID_EXUNENCRYPTED,
664	DOT11_OID_DEFKEYX,	/* MULTIPLE */
665	DOT11_OID_DEFKEYID,
666	DOT11_OID_DOT1XENABLE,
667	OID_INL_DOT11D_CONFORMANCE,
668	/* Do not initialize this - fw < 1.0.4.3 rejects it
669	OID_INL_OUTPUTPOWER,
670	*/
671};
672
673/* update the MAC addr. */
674static int
675mgt_update_addr(islpci_private *priv)
676{
677	struct islpci_mgmtframe *res;
678	int ret;
679
680	ret = islpci_mgt_transaction(priv->ndev, PIMFOR_OP_GET,
681				     isl_oid[GEN_OID_MACADDRESS].oid, NULL,
682				     isl_oid[GEN_OID_MACADDRESS].size, &res);
683
684	if ((ret == 0) && res && (res->header->operation != PIMFOR_OP_ERROR))
685		memcpy(priv->ndev->dev_addr, res->data, 6);
686	else
687		ret = -EIO;
688	if (res)
689		islpci_mgt_release(res);
690
691	if (ret)
692		printk(KERN_ERR "%s: mgt_update_addr: failure\n", priv->ndev->name);
693	return ret;
694}
695
696#define VEC_SIZE(a) ARRAY_SIZE(a)
697
698int
699mgt_commit(islpci_private *priv)
700{
701	int rvalue;
702	enum oid_num_t u;
703
704	if (islpci_get_state(priv) < PRV_STATE_INIT)
705		return 0;
706
707	rvalue = mgt_commit_list(priv, commit_part1, VEC_SIZE(commit_part1));
708
709	if (priv->iw_mode != IW_MODE_MONITOR)
710		rvalue |= mgt_commit_list(priv, commit_part2, VEC_SIZE(commit_part2));
711
712	u = OID_INL_MODE;
713	rvalue |= mgt_commit_list(priv, &u, 1);
714	rvalue |= mgt_update_addr(priv);
715
716	if (rvalue) {
717		/* some request have failed. The device might be in an
718		   incoherent state. We should reset it ! */
719		printk(KERN_DEBUG "%s: mgt_commit: failure\n", priv->ndev->name);
720	}
721	return rvalue;
722}
723
724/* The following OIDs need to be "unlatched":
725 *
726 * MEDIUMLIMIT,BEACONPERIOD,DTIMPERIOD,ATIMWINDOW,LISTENINTERVAL
727 * FREQUENCY,EXTENDEDRATES.
728 *
729 * The way to do this is to set ESSID. Note though that they may get
730 * unlatch before though by setting another OID. */
731#if 0
732void
733mgt_unlatch_all(islpci_private *priv)
734{
735	u32 u;
736	int rvalue = 0;
737
738	if (islpci_get_state(priv) < PRV_STATE_INIT)
739		return;
740
741	u = DOT11_OID_SSID;
742	rvalue = mgt_commit_list(priv, &u, 1);
743	/* Necessary if in MANUAL RUN mode? */
744#if 0
745	u = OID_INL_MODE;
746	rvalue |= mgt_commit_list(priv, &u, 1);
747
748	u = DOT11_OID_MLMEAUTOLEVEL;
749	rvalue |= mgt_commit_list(priv, &u, 1);
750
751	u = OID_INL_MODE;
752	rvalue |= mgt_commit_list(priv, &u, 1);
753#endif
754
755	if (rvalue)
756		printk(KERN_DEBUG "%s: Unlatching OIDs failed\n", priv->ndev->name);
757}
758#endif
759
760/* This will tell you if you are allowed to answer a mlme(ex) request .*/
761
762int
763mgt_mlme_answer(islpci_private *priv)
764{
765	u32 mlmeautolevel;
766	/* Acquire a read lock because if we are in a mode change, it's
767	 * possible to answer true, while the card is leaving master to managed
768	 * mode. Answering to a mlme in this situation could hang the card.
769	 */
770	down_read(&priv->mib_sem);
771	mlmeautolevel =
772	    le32_to_cpu(*(u32 *) priv->mib[DOT11_OID_MLMEAUTOLEVEL]);
773	up_read(&priv->mib_sem);
774
775	return ((priv->iw_mode == IW_MODE_MASTER) &&
776		(mlmeautolevel >= DOT11_MLME_INTERMEDIATE));
777}
778
779enum oid_num_t
780mgt_oidtonum(u32 oid)
781{
782	int i;
783
784	for (i = 0; i < OID_NUM_LAST; i++)
785		if (isl_oid[i].oid == oid)
786			return i;
787
788	printk(KERN_DEBUG "looking for an unknown oid 0x%x", oid);
789
790	return OID_NUM_LAST;
791}
792
793int
794mgt_response_to_str(enum oid_num_t n, union oid_res_t *r, char *str)
795{
796	switch (isl_oid[n].flags & OID_FLAG_TYPE) {
797	case OID_TYPE_U32:
798		return snprintf(str, PRIV_STR_SIZE, "%u\n", r->u);
799		break;
800	case OID_TYPE_BUFFER:{
801			struct obj_buffer *buff = r->ptr;
802			return snprintf(str, PRIV_STR_SIZE,
803					"size=%u\naddr=0x%X\n", buff->size,
804					buff->addr);
805		}
806		break;
807	case OID_TYPE_BSS:{
808			struct obj_bss *bss = r->ptr;
809			return snprintf(str, PRIV_STR_SIZE,
810					"age=%u\nchannel=%u\n"
811					"capinfo=0x%X\nrates=0x%X\n"
812					"basic_rates=0x%X\n", bss->age,
813					bss->channel, bss->capinfo,
814					bss->rates, bss->basic_rates);
815		}
816		break;
817	case OID_TYPE_BSSLIST:{
818			struct obj_bsslist *list = r->ptr;
819			int i, k;
820			k = snprintf(str, PRIV_STR_SIZE, "nr=%u\n", list->nr);
821			for (i = 0; i < list->nr; i++)
822				k += snprintf(str + k, PRIV_STR_SIZE - k,
823					      "bss[%u] :\nage=%u\nchannel=%u\n"
824					      "capinfo=0x%X\nrates=0x%X\n"
825					      "basic_rates=0x%X\n",
826					      i, list->bsslist[i].age,
827					      list->bsslist[i].channel,
828					      list->bsslist[i].capinfo,
829					      list->bsslist[i].rates,
830					      list->bsslist[i].basic_rates);
831			return k;
832		}
833		break;
834	case OID_TYPE_FREQUENCIES:{
835			struct obj_frequencies *freq = r->ptr;
836			int i, t;
837			printk("nr : %u\n", freq->nr);
838			t = snprintf(str, PRIV_STR_SIZE, "nr=%u\n", freq->nr);
839			for (i = 0; i < freq->nr; i++)
840				t += snprintf(str + t, PRIV_STR_SIZE - t,
841					      "mhz[%u]=%u\n", i, freq->mhz[i]);
842			return t;
843		}
844		break;
845	case OID_TYPE_MLME:{
846			struct obj_mlme *mlme = r->ptr;
847			return snprintf(str, PRIV_STR_SIZE,
848					"id=0x%X\nstate=0x%X\ncode=0x%X\n",
849					mlme->id, mlme->state, mlme->code);
850		}
851		break;
852	case OID_TYPE_MLMEEX:{
853			struct obj_mlmeex *mlme = r->ptr;
854			return snprintf(str, PRIV_STR_SIZE,
855					"id=0x%X\nstate=0x%X\n"
856					"code=0x%X\nsize=0x%X\n", mlme->id,
857					mlme->state, mlme->code, mlme->size);
858		}
859		break;
860	case OID_TYPE_ATTACH:{
861			struct obj_attachment *attach = r->ptr;
862			return snprintf(str, PRIV_STR_SIZE,
863					"id=%d\nsize=%d\n",
864					attach->id,
865					attach->size);
866		}
867		break;
868	case OID_TYPE_SSID:{
869			struct obj_ssid *ssid = r->ptr;
870			return snprintf(str, PRIV_STR_SIZE,
871					"length=%u\noctets=%.*s\n",
872					ssid->length, ssid->length,
873					ssid->octets);
874		}
875		break;
876	case OID_TYPE_KEY:{
877			struct obj_key *key = r->ptr;
878			int t, i;
879			t = snprintf(str, PRIV_STR_SIZE,
880				     "type=0x%X\nlength=0x%X\nkey=0x",
881				     key->type, key->length);
882			for (i = 0; i < key->length; i++)
883				t += snprintf(str + t, PRIV_STR_SIZE - t,
884					      "%02X:", key->key[i]);
885			t += snprintf(str + t, PRIV_STR_SIZE - t, "\n");
886			return t;
887		}
888		break;
889	case OID_TYPE_RAW:
890	case OID_TYPE_ADDR:{
891			unsigned char *buff = r->ptr;
892			int t, i;
893			t = snprintf(str, PRIV_STR_SIZE, "hex data=");
894			for (i = 0; i < isl_oid[n].size; i++)
895				t += snprintf(str + t, PRIV_STR_SIZE - t,
896					      "%02X:", buff[i]);
897			t += snprintf(str + t, PRIV_STR_SIZE - t, "\n");
898			return t;
899		}
900		break;
901	default:
902		BUG();
903	}
904	return 0;
905}
906