1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef HOSTAP_WLAN_H
3 #define HOSTAP_WLAN_H
4
5 #include <linux/interrupt.h>
6 #include <linux/wireless.h>
7 #include <linux/netdevice.h>
8 #include <linux/etherdevice.h>
9 #include <linux/mutex.h>
10 #include <linux/refcount.h>
11 #include <net/iw_handler.h>
12 #include <net/ieee80211_radiotap.h>
13 #include <net/lib80211.h>
14
15 #include "hostap_config.h"
16 #include "hostap_common.h"
17
18 #define MAX_PARM_DEVICES 8
19 #define PARM_MIN_MAX "1-" __MODULE_STRING(MAX_PARM_DEVICES)
20 #define DEF_INTS -1, -1, -1, -1, -1, -1, -1
21 #define GET_INT_PARM(var,idx) var[var[idx] < 0 ? 0 : idx]
22
23
24 /* Specific skb->protocol value that indicates that the packet already contains
25 * txdesc header.
26 * FIX: This might need own value that would be allocated especially for Prism2
27 * txdesc; ETH_P_CONTROL is commented as "Card specific control frames".
28 * However, these skb's should have only minimal path in the kernel side since
29 * prism2_send_mgmt() sends these with dev_queue_xmit() to prism2_tx(). */
30 #define ETH_P_HOSTAP ETH_P_CONTROL
31
32 /* ARPHRD_IEEE80211_PRISM uses a bloated version of Prism2 RX frame header
33 * (from linux-wlan-ng) */
34 struct linux_wlan_ng_val {
35 u32 did;
36 u16 status, len;
37 u32 data;
38 } __packed;
39
40 struct linux_wlan_ng_prism_hdr {
41 u32 msgcode, msglen;
42 char devname[16];
43 struct linux_wlan_ng_val hosttime, mactime, channel, rssi, sq, signal,
44 noise, rate, istx, frmlen;
45 } __packed;
46
47 struct linux_wlan_ng_cap_hdr {
48 __be32 version;
49 __be32 length;
50 __be64 mactime;
51 __be64 hosttime;
52 __be32 phytype;
53 __be32 channel;
54 __be32 datarate;
55 __be32 antenna;
56 __be32 priority;
57 __be32 ssi_type;
58 __be32 ssi_signal;
59 __be32 ssi_noise;
60 __be32 preamble;
61 __be32 encoding;
62 } __packed;
63
64 struct hostap_radiotap_rx {
65 struct ieee80211_radiotap_header hdr;
66 __le64 tsft;
67 u8 rate;
68 u8 padding;
69 __le16 chan_freq;
70 __le16 chan_flags;
71 s8 dbm_antsignal;
72 s8 dbm_antnoise;
73 } __packed;
74
75 #define LWNG_CAP_DID_BASE (4 | (1 << 6)) /* section 4, group 1 */
76 #define LWNG_CAPHDR_VERSION 0x80211001
77
78 struct hfa384x_rx_frame {
79 /* HFA384X RX frame descriptor */
80 __le16 status; /* HFA384X_RX_STATUS_ flags */
81 __le32 time; /* timestamp, 1 microsecond resolution */
82 u8 silence; /* 27 .. 154; seems to be 0 */
83 u8 signal; /* 27 .. 154 */
84 u8 rate; /* 10, 20, 55, or 110 */
85 u8 rxflow;
86 __le32 reserved;
87
88 /* 802.11 */
89 __le16 frame_control;
90 __le16 duration_id;
91 u8 addr1[ETH_ALEN];
92 u8 addr2[ETH_ALEN];
93 u8 addr3[ETH_ALEN];
94 __le16 seq_ctrl;
95 u8 addr4[ETH_ALEN];
96 __le16 data_len;
97
98 /* 802.3 */
99 u8 dst_addr[ETH_ALEN];
100 u8 src_addr[ETH_ALEN];
101 __be16 len;
102
103 /* followed by frame data; max 2304 bytes */
104 } __packed;
105
106
107 struct hfa384x_tx_frame {
108 /* HFA384X TX frame descriptor */
109 __le16 status; /* HFA384X_TX_STATUS_ flags */
110 __le16 reserved1;
111 __le16 reserved2;
112 __le32 sw_support;
113 u8 retry_count; /* not yet implemented */
114 u8 tx_rate; /* Host AP only; 0 = firmware, or 10, 20, 55, 110 */
115 __le16 tx_control; /* HFA384X_TX_CTRL_ flags */
116
117 /* 802.11 */
118 __le16 frame_control; /* parts not used */
119 __le16 duration_id;
120 u8 addr1[ETH_ALEN];
121 u8 addr2[ETH_ALEN]; /* filled by firmware */
122 u8 addr3[ETH_ALEN];
123 __le16 seq_ctrl; /* filled by firmware */
124 u8 addr4[ETH_ALEN];
125 __le16 data_len;
126
127 /* 802.3 */
128 u8 dst_addr[ETH_ALEN];
129 u8 src_addr[ETH_ALEN];
130 __be16 len;
131
132 /* followed by frame data; max 2304 bytes */
133 } __packed;
134
135
136 struct hfa384x_rid_hdr
137 {
138 __le16 len;
139 __le16 rid;
140 } __packed;
141
142
143 /* Macro for converting signal levels (range 27 .. 154) to wireless ext
144 * dBm value with some accuracy */
145 #define HFA384X_LEVEL_TO_dBm(v) 0x100 + (v) * 100 / 255 - 100
146
147 #define HFA384X_LEVEL_TO_dBm_sign(v) (v) * 100 / 255 - 100
148
149 struct hfa384x_scan_request {
150 __le16 channel_list;
151 __le16 txrate; /* HFA384X_RATES_* */
152 } __packed;
153
154 struct hfa384x_hostscan_request {
155 __le16 channel_list;
156 __le16 txrate;
157 __le16 target_ssid_len;
158 u8 target_ssid[32];
159 } __packed;
160
161 struct hfa384x_join_request {
162 u8 bssid[ETH_ALEN];
163 __le16 channel;
164 } __packed;
165
166 struct hfa384x_info_frame {
167 __le16 len;
168 __le16 type;
169 } __packed;
170
171 struct hfa384x_comm_tallies {
172 __le16 tx_unicast_frames;
173 __le16 tx_multicast_frames;
174 __le16 tx_fragments;
175 __le16 tx_unicast_octets;
176 __le16 tx_multicast_octets;
177 __le16 tx_deferred_transmissions;
178 __le16 tx_single_retry_frames;
179 __le16 tx_multiple_retry_frames;
180 __le16 tx_retry_limit_exceeded;
181 __le16 tx_discards;
182 __le16 rx_unicast_frames;
183 __le16 rx_multicast_frames;
184 __le16 rx_fragments;
185 __le16 rx_unicast_octets;
186 __le16 rx_multicast_octets;
187 __le16 rx_fcs_errors;
188 __le16 rx_discards_no_buffer;
189 __le16 tx_discards_wrong_sa;
190 __le16 rx_discards_wep_undecryptable;
191 __le16 rx_message_in_msg_fragments;
192 __le16 rx_message_in_bad_msg_fragments;
193 } __packed;
194
195 struct hfa384x_comm_tallies32 {
196 __le32 tx_unicast_frames;
197 __le32 tx_multicast_frames;
198 __le32 tx_fragments;
199 __le32 tx_unicast_octets;
200 __le32 tx_multicast_octets;
201 __le32 tx_deferred_transmissions;
202 __le32 tx_single_retry_frames;
203 __le32 tx_multiple_retry_frames;
204 __le32 tx_retry_limit_exceeded;
205 __le32 tx_discards;
206 __le32 rx_unicast_frames;
207 __le32 rx_multicast_frames;
208 __le32 rx_fragments;
209 __le32 rx_unicast_octets;
210 __le32 rx_multicast_octets;
211 __le32 rx_fcs_errors;
212 __le32 rx_discards_no_buffer;
213 __le32 tx_discards_wrong_sa;
214 __le32 rx_discards_wep_undecryptable;
215 __le32 rx_message_in_msg_fragments;
216 __le32 rx_message_in_bad_msg_fragments;
217 } __packed;
218
219 struct hfa384x_scan_result_hdr {
220 __le16 reserved;
221 __le16 scan_reason;
222 #define HFA384X_SCAN_IN_PROGRESS 0 /* no results available yet */
223 #define HFA384X_SCAN_HOST_INITIATED 1
224 #define HFA384X_SCAN_FIRMWARE_INITIATED 2
225 #define HFA384X_SCAN_INQUIRY_FROM_HOST 3
226 } __packed;
227
228 #define HFA384X_SCAN_MAX_RESULTS 32
229
230 struct hfa384x_scan_result {
231 __le16 chid;
232 __le16 anl;
233 __le16 sl;
234 u8 bssid[ETH_ALEN];
235 __le16 beacon_interval;
236 __le16 capability;
237 __le16 ssid_len;
238 u8 ssid[32];
239 u8 sup_rates[10];
240 __le16 rate;
241 } __packed;
242
243 struct hfa384x_hostscan_result {
244 __le16 chid;
245 __le16 anl;
246 __le16 sl;
247 u8 bssid[ETH_ALEN];
248 __le16 beacon_interval;
249 __le16 capability;
250 __le16 ssid_len;
251 u8 ssid[32];
252 u8 sup_rates[10];
253 __le16 rate;
254 __le16 atim;
255 } __packed;
256
257 struct comm_tallies_sums {
258 unsigned int tx_unicast_frames;
259 unsigned int tx_multicast_frames;
260 unsigned int tx_fragments;
261 unsigned int tx_unicast_octets;
262 unsigned int tx_multicast_octets;
263 unsigned int tx_deferred_transmissions;
264 unsigned int tx_single_retry_frames;
265 unsigned int tx_multiple_retry_frames;
266 unsigned int tx_retry_limit_exceeded;
267 unsigned int tx_discards;
268 unsigned int rx_unicast_frames;
269 unsigned int rx_multicast_frames;
270 unsigned int rx_fragments;
271 unsigned int rx_unicast_octets;
272 unsigned int rx_multicast_octets;
273 unsigned int rx_fcs_errors;
274 unsigned int rx_discards_no_buffer;
275 unsigned int tx_discards_wrong_sa;
276 unsigned int rx_discards_wep_undecryptable;
277 unsigned int rx_message_in_msg_fragments;
278 unsigned int rx_message_in_bad_msg_fragments;
279 };
280
281
282 struct hfa384x_regs {
283 u16 cmd;
284 u16 evstat;
285 u16 offset0;
286 u16 offset1;
287 u16 swsupport0;
288 };
289
290
291 #if defined(PRISM2_PCCARD) || defined(PRISM2_PLX)
292 /* I/O ports for HFA384X Controller access */
293 #define HFA384X_CMD_OFF 0x00
294 #define HFA384X_PARAM0_OFF 0x02
295 #define HFA384X_PARAM1_OFF 0x04
296 #define HFA384X_PARAM2_OFF 0x06
297 #define HFA384X_STATUS_OFF 0x08
298 #define HFA384X_RESP0_OFF 0x0A
299 #define HFA384X_RESP1_OFF 0x0C
300 #define HFA384X_RESP2_OFF 0x0E
301 #define HFA384X_INFOFID_OFF 0x10
302 #define HFA384X_CONTROL_OFF 0x14
303 #define HFA384X_SELECT0_OFF 0x18
304 #define HFA384X_SELECT1_OFF 0x1A
305 #define HFA384X_OFFSET0_OFF 0x1C
306 #define HFA384X_OFFSET1_OFF 0x1E
307 #define HFA384X_RXFID_OFF 0x20
308 #define HFA384X_ALLOCFID_OFF 0x22
309 #define HFA384X_TXCOMPLFID_OFF 0x24
310 #define HFA384X_SWSUPPORT0_OFF 0x28
311 #define HFA384X_SWSUPPORT1_OFF 0x2A
312 #define HFA384X_SWSUPPORT2_OFF 0x2C
313 #define HFA384X_EVSTAT_OFF 0x30
314 #define HFA384X_INTEN_OFF 0x32
315 #define HFA384X_EVACK_OFF 0x34
316 #define HFA384X_DATA0_OFF 0x36
317 #define HFA384X_DATA1_OFF 0x38
318 #define HFA384X_AUXPAGE_OFF 0x3A
319 #define HFA384X_AUXOFFSET_OFF 0x3C
320 #define HFA384X_AUXDATA_OFF 0x3E
321 #endif /* PRISM2_PCCARD || PRISM2_PLX */
322
323 #ifdef PRISM2_PCI
324 /* Memory addresses for ISL3874 controller access */
325 #define HFA384X_CMD_OFF 0x00
326 #define HFA384X_PARAM0_OFF 0x04
327 #define HFA384X_PARAM1_OFF 0x08
328 #define HFA384X_PARAM2_OFF 0x0C
329 #define HFA384X_STATUS_OFF 0x10
330 #define HFA384X_RESP0_OFF 0x14
331 #define HFA384X_RESP1_OFF 0x18
332 #define HFA384X_RESP2_OFF 0x1C
333 #define HFA384X_INFOFID_OFF 0x20
334 #define HFA384X_CONTROL_OFF 0x28
335 #define HFA384X_SELECT0_OFF 0x30
336 #define HFA384X_SELECT1_OFF 0x34
337 #define HFA384X_OFFSET0_OFF 0x38
338 #define HFA384X_OFFSET1_OFF 0x3C
339 #define HFA384X_RXFID_OFF 0x40
340 #define HFA384X_ALLOCFID_OFF 0x44
341 #define HFA384X_TXCOMPLFID_OFF 0x48
342 #define HFA384X_PCICOR_OFF 0x4C
343 #define HFA384X_SWSUPPORT0_OFF 0x50
344 #define HFA384X_SWSUPPORT1_OFF 0x54
345 #define HFA384X_SWSUPPORT2_OFF 0x58
346 #define HFA384X_PCIHCR_OFF 0x5C
347 #define HFA384X_EVSTAT_OFF 0x60
348 #define HFA384X_INTEN_OFF 0x64
349 #define HFA384X_EVACK_OFF 0x68
350 #define HFA384X_DATA0_OFF 0x6C
351 #define HFA384X_DATA1_OFF 0x70
352 #define HFA384X_AUXPAGE_OFF 0x74
353 #define HFA384X_AUXOFFSET_OFF 0x78
354 #define HFA384X_AUXDATA_OFF 0x7C
355 #define HFA384X_PCI_M0_ADDRH_OFF 0x80
356 #define HFA384X_PCI_M0_ADDRL_OFF 0x84
357 #define HFA384X_PCI_M0_LEN_OFF 0x88
358 #define HFA384X_PCI_M0_CTL_OFF 0x8C
359 #define HFA384X_PCI_STATUS_OFF 0x98
360 #define HFA384X_PCI_M1_ADDRH_OFF 0xA0
361 #define HFA384X_PCI_M1_ADDRL_OFF 0xA4
362 #define HFA384X_PCI_M1_LEN_OFF 0xA8
363 #define HFA384X_PCI_M1_CTL_OFF 0xAC
364
365 /* PCI bus master control bits (these are undocumented; based on guessing and
366 * experimenting..) */
367 #define HFA384X_PCI_CTL_FROM_BAP (BIT(5) | BIT(1) | BIT(0))
368 #define HFA384X_PCI_CTL_TO_BAP (BIT(5) | BIT(0))
369
370 #endif /* PRISM2_PCI */
371
372
373 /* Command codes for CMD reg. */
374 #define HFA384X_CMDCODE_INIT 0x00
375 #define HFA384X_CMDCODE_ENABLE 0x01
376 #define HFA384X_CMDCODE_DISABLE 0x02
377 #define HFA384X_CMDCODE_ALLOC 0x0A
378 #define HFA384X_CMDCODE_TRANSMIT 0x0B
379 #define HFA384X_CMDCODE_INQUIRE 0x11
380 #define HFA384X_CMDCODE_ACCESS 0x21
381 #define HFA384X_CMDCODE_ACCESS_WRITE (0x21 | BIT(8))
382 #define HFA384X_CMDCODE_DOWNLOAD 0x22
383 #define HFA384X_CMDCODE_READMIF 0x30
384 #define HFA384X_CMDCODE_WRITEMIF 0x31
385 #define HFA384X_CMDCODE_TEST 0x38
386
387 #define HFA384X_CMDCODE_MASK 0x3F
388
389 /* Test mode operations */
390 #define HFA384X_TEST_CHANGE_CHANNEL 0x08
391 #define HFA384X_TEST_MONITOR 0x0B
392 #define HFA384X_TEST_STOP 0x0F
393 #define HFA384X_TEST_CFG_BITS 0x15
394 #define HFA384X_TEST_CFG_BIT_ALC BIT(3)
395
396 #define HFA384X_CMD_BUSY BIT(15)
397
398 #define HFA384X_CMD_TX_RECLAIM BIT(8)
399
400 #define HFA384X_OFFSET_ERR BIT(14)
401 #define HFA384X_OFFSET_BUSY BIT(15)
402
403
404 /* ProgMode for download command */
405 #define HFA384X_PROGMODE_DISABLE 0
406 #define HFA384X_PROGMODE_ENABLE_VOLATILE 1
407 #define HFA384X_PROGMODE_ENABLE_NON_VOLATILE 2
408 #define HFA384X_PROGMODE_PROGRAM_NON_VOLATILE 3
409
410 #define HFA384X_AUX_MAGIC0 0xfe01
411 #define HFA384X_AUX_MAGIC1 0xdc23
412 #define HFA384X_AUX_MAGIC2 0xba45
413
414 #define HFA384X_AUX_PORT_DISABLED 0
415 #define HFA384X_AUX_PORT_DISABLE BIT(14)
416 #define HFA384X_AUX_PORT_ENABLE BIT(15)
417 #define HFA384X_AUX_PORT_ENABLED (BIT(14) | BIT(15))
418 #define HFA384X_AUX_PORT_MASK (BIT(14) | BIT(15))
419
420 #define PRISM2_PDA_SIZE 1024
421
422
423 /* Events; EvStat, Interrupt mask (IntEn), and acknowledge bits (EvAck) */
424 #define HFA384X_EV_TICK BIT(15)
425 #define HFA384X_EV_WTERR BIT(14)
426 #define HFA384X_EV_INFDROP BIT(13)
427 #ifdef PRISM2_PCI
428 #define HFA384X_EV_PCI_M1 BIT(9)
429 #define HFA384X_EV_PCI_M0 BIT(8)
430 #endif /* PRISM2_PCI */
431 #define HFA384X_EV_INFO BIT(7)
432 #define HFA384X_EV_DTIM BIT(5)
433 #define HFA384X_EV_CMD BIT(4)
434 #define HFA384X_EV_ALLOC BIT(3)
435 #define HFA384X_EV_TXEXC BIT(2)
436 #define HFA384X_EV_TX BIT(1)
437 #define HFA384X_EV_RX BIT(0)
438
439
440 /* HFA384X Information frames */
441 #define HFA384X_INFO_HANDOVERADDR 0xF000 /* AP f/w ? */
442 #define HFA384X_INFO_HANDOVERDEAUTHADDR 0xF001 /* AP f/w 1.3.7 */
443 #define HFA384X_INFO_COMMTALLIES 0xF100
444 #define HFA384X_INFO_SCANRESULTS 0xF101
445 #define HFA384X_INFO_CHANNELINFORESULTS 0xF102 /* AP f/w only */
446 #define HFA384X_INFO_HOSTSCANRESULTS 0xF103
447 #define HFA384X_INFO_LINKSTATUS 0xF200
448 #define HFA384X_INFO_ASSOCSTATUS 0xF201 /* ? */
449 #define HFA384X_INFO_AUTHREQ 0xF202 /* ? */
450 #define HFA384X_INFO_PSUSERCNT 0xF203 /* ? */
451 #define HFA384X_INFO_KEYIDCHANGED 0xF204 /* ? */
452
453 enum { HFA384X_LINKSTATUS_CONNECTED = 1,
454 HFA384X_LINKSTATUS_DISCONNECTED = 2,
455 HFA384X_LINKSTATUS_AP_CHANGE = 3,
456 HFA384X_LINKSTATUS_AP_OUT_OF_RANGE = 4,
457 HFA384X_LINKSTATUS_AP_IN_RANGE = 5,
458 HFA384X_LINKSTATUS_ASSOC_FAILED = 6 };
459
460 enum { HFA384X_PORTTYPE_BSS = 1, HFA384X_PORTTYPE_WDS = 2,
461 HFA384X_PORTTYPE_PSEUDO_IBSS = 3, HFA384X_PORTTYPE_IBSS = 0,
462 HFA384X_PORTTYPE_HOSTAP = 6 };
463
464 #define HFA384X_RATES_1MBPS BIT(0)
465 #define HFA384X_RATES_2MBPS BIT(1)
466 #define HFA384X_RATES_5MBPS BIT(2)
467 #define HFA384X_RATES_11MBPS BIT(3)
468
469 #define HFA384X_ROAMING_FIRMWARE 1
470 #define HFA384X_ROAMING_HOST 2
471 #define HFA384X_ROAMING_DISABLED 3
472
473 #define HFA384X_WEPFLAGS_PRIVACYINVOKED BIT(0)
474 #define HFA384X_WEPFLAGS_EXCLUDEUNENCRYPTED BIT(1)
475 #define HFA384X_WEPFLAGS_HOSTENCRYPT BIT(4)
476 #define HFA384X_WEPFLAGS_HOSTDECRYPT BIT(7)
477
478 #define HFA384X_RX_STATUS_MSGTYPE (BIT(15) | BIT(14) | BIT(13))
479 #define HFA384X_RX_STATUS_PCF BIT(12)
480 #define HFA384X_RX_STATUS_MACPORT (BIT(10) | BIT(9) | BIT(8))
481 #define HFA384X_RX_STATUS_UNDECR BIT(1)
482 #define HFA384X_RX_STATUS_FCSERR BIT(0)
483
484 #define HFA384X_RX_STATUS_GET_MSGTYPE(s) \
485 (((s) & HFA384X_RX_STATUS_MSGTYPE) >> 13)
486 #define HFA384X_RX_STATUS_GET_MACPORT(s) \
487 (((s) & HFA384X_RX_STATUS_MACPORT) >> 8)
488
489 enum { HFA384X_RX_MSGTYPE_NORMAL = 0, HFA384X_RX_MSGTYPE_RFC1042 = 1,
490 HFA384X_RX_MSGTYPE_BRIDGETUNNEL = 2, HFA384X_RX_MSGTYPE_MGMT = 4 };
491
492
493 #define HFA384X_TX_CTRL_ALT_RTRY BIT(5)
494 #define HFA384X_TX_CTRL_802_11 BIT(3)
495 #define HFA384X_TX_CTRL_802_3 0
496 #define HFA384X_TX_CTRL_TX_EX BIT(2)
497 #define HFA384X_TX_CTRL_TX_OK BIT(1)
498
499 #define HFA384X_TX_STATUS_RETRYERR BIT(0)
500 #define HFA384X_TX_STATUS_AGEDERR BIT(1)
501 #define HFA384X_TX_STATUS_DISCON BIT(2)
502 #define HFA384X_TX_STATUS_FORMERR BIT(3)
503
504 /* HFA3861/3863 (BBP) Control Registers */
505 #define HFA386X_CR_TX_CONFIGURE 0x12 /* CR9 */
506 #define HFA386X_CR_RX_CONFIGURE 0x14 /* CR10 */
507 #define HFA386X_CR_A_D_TEST_MODES2 0x1A /* CR13 */
508 #define HFA386X_CR_MANUAL_TX_POWER 0x3E /* CR31 */
509 #define HFA386X_CR_MEASURED_TX_POWER 0x74 /* CR58 */
510
511
512 #ifdef __KERNEL__
513
514 #define PRISM2_TXFID_COUNT 8
515 #define PRISM2_DATA_MAXLEN 2304
516 #define PRISM2_TXFID_LEN (PRISM2_DATA_MAXLEN + sizeof(struct hfa384x_tx_frame))
517 #define PRISM2_TXFID_EMPTY 0xffff
518 #define PRISM2_TXFID_RESERVED 0xfffe
519 #define PRISM2_DUMMY_FID 0xffff
520 #define MAX_SSID_LEN 32
521 #define MAX_NAME_LEN 32 /* this is assumed to be equal to MAX_SSID_LEN */
522
523 #define PRISM2_DUMP_RX_HDR BIT(0)
524 #define PRISM2_DUMP_TX_HDR BIT(1)
525 #define PRISM2_DUMP_TXEXC_HDR BIT(2)
526
527 struct hostap_tx_callback_info {
528 u16 idx;
529 void (*func)(struct sk_buff *, int ok, void *);
530 void *data;
531 struct hostap_tx_callback_info *next;
532 };
533
534
535 /* IEEE 802.11 requires that STA supports concurrent reception of at least
536 * three fragmented frames. This define can be increased to support more
537 * concurrent frames, but it should be noted that each entry can consume about
538 * 2 kB of RAM and increasing cache size will slow down frame reassembly. */
539 #define PRISM2_FRAG_CACHE_LEN 4
540
541 struct prism2_frag_entry {
542 unsigned long first_frag_time;
543 unsigned int seq;
544 unsigned int last_frag;
545 struct sk_buff *skb;
546 u8 src_addr[ETH_ALEN];
547 u8 dst_addr[ETH_ALEN];
548 };
549
550
551 struct hostap_cmd_queue {
552 struct list_head list;
553 wait_queue_head_t compl;
554 volatile enum { CMD_SLEEP, CMD_CALLBACK, CMD_COMPLETED } type;
555 void (*callback)(struct net_device *dev, long context, u16 resp0,
556 u16 res);
557 long context;
558 u16 cmd, param0, param1;
559 u16 resp0, res;
560 volatile int issued, issuing;
561
562 refcount_t usecnt;
563 int del_req;
564 };
565
566 /* options for hw_shutdown */
567 #define HOSTAP_HW_NO_DISABLE BIT(0)
568 #define HOSTAP_HW_ENABLE_CMDCOMPL BIT(1)
569
570 typedef struct local_info local_info_t;
571
572 struct prism2_helper_functions {
573 /* these functions are defined in hardware model specific files
574 * (hostap_{cs,plx,pci}.c */
575 int (*card_present)(local_info_t *local);
576 void (*cor_sreset)(local_info_t *local);
577 void (*genesis_reset)(local_info_t *local, int hcr);
578
579 /* the following functions are from hostap_hw.c, but they may have some
580 * hardware model specific code */
581
582 /* FIX: low-level commands like cmd might disappear at some point to
583 * make it easier to change them if needed (e.g., cmd would be replaced
584 * with write_mif/read_mif/testcmd/inquire); at least get_rid and
585 * set_rid might move to hostap_{cs,plx,pci}.c */
586 int (*cmd)(struct net_device *dev, u16 cmd, u16 param0, u16 *param1,
587 u16 *resp0);
588 void (*read_regs)(struct net_device *dev, struct hfa384x_regs *regs);
589 int (*get_rid)(struct net_device *dev, u16 rid, void *buf, int len,
590 int exact_len);
591 int (*set_rid)(struct net_device *dev, u16 rid, void *buf, int len);
592 int (*hw_enable)(struct net_device *dev, int initial);
593 int (*hw_config)(struct net_device *dev, int initial);
594 void (*hw_reset)(struct net_device *dev);
595 void (*hw_shutdown)(struct net_device *dev, int no_disable);
596 int (*reset_port)(struct net_device *dev);
597 void (*schedule_reset)(local_info_t *local);
598 int (*download)(local_info_t *local,
599 struct prism2_download_param *param);
600 int (*tx)(struct sk_buff *skb, struct net_device *dev);
601 int (*set_tim)(struct net_device *dev, int aid, int set);
602 const struct file_operations *read_aux_fops;
603
604 int need_tx_headroom; /* number of bytes of headroom needed before
605 * IEEE 802.11 header */
606 enum { HOSTAP_HW_PCCARD, HOSTAP_HW_PLX, HOSTAP_HW_PCI } hw_type;
607 };
608
609
610 struct prism2_download_data {
611 u32 dl_cmd;
612 u32 start_addr;
613 u32 num_areas;
614 struct prism2_download_data_area {
615 u32 addr; /* wlan card address */
616 u32 len;
617 u8 *data; /* allocated data */
618 } data[0];
619 };
620
621
622 #define HOSTAP_MAX_BSS_COUNT 64
623 #define MAX_WPA_IE_LEN 64
624
625 struct hostap_bss_info {
626 struct list_head list;
627 unsigned long last_update;
628 unsigned int count;
629 u8 bssid[ETH_ALEN];
630 u16 capab_info;
631 u8 ssid[32];
632 size_t ssid_len;
633 u8 wpa_ie[MAX_WPA_IE_LEN];
634 size_t wpa_ie_len;
635 u8 rsn_ie[MAX_WPA_IE_LEN];
636 size_t rsn_ie_len;
637 int chan;
638 int included;
639 };
640
641
642 /* Per radio private Host AP data - shared by all net devices interfaces used
643 * by each radio (wlan#, wlan#ap, wlan#sta, WDS).
644 * ((struct hostap_interface *) netdev_priv(dev))->local points to this
645 * structure. */
646 struct local_info {
647 struct module *hw_module;
648 int card_idx;
649 int dev_enabled;
650 int master_dev_auto_open; /* was master device opened automatically */
651 int num_dev_open; /* number of open devices */
652 struct net_device *dev; /* master radio device */
653 struct net_device *ddev; /* main data device */
654 struct list_head hostap_interfaces; /* Host AP interface list (contains
655 * struct hostap_interface entries)
656 */
657 rwlock_t iface_lock; /* hostap_interfaces read lock; use write lock
658 * when removing entries from the list.
659 * TX and RX paths can use read lock. */
660 spinlock_t cmdlock, baplock, lock, irq_init_lock;
661 struct mutex rid_bap_mtx;
662 u16 infofid; /* MAC buffer id for info frame */
663 /* txfid, intransmitfid, next_txtid, and next_alloc are protected by
664 * txfidlock */
665 spinlock_t txfidlock;
666 int txfid_len; /* length of allocated TX buffers */
667 u16 txfid[PRISM2_TXFID_COUNT]; /* buffer IDs for TX frames */
668 /* buffer IDs for intransmit frames or PRISM2_TXFID_EMPTY if
669 * corresponding txfid is free for next TX frame */
670 u16 intransmitfid[PRISM2_TXFID_COUNT];
671 int next_txfid; /* index to the next txfid to be checked for
672 * availability */
673 int next_alloc; /* index to the next intransmitfid to be checked for
674 * allocation events */
675
676 /* bitfield for atomic bitops */
677 #define HOSTAP_BITS_TRANSMIT 0
678 #define HOSTAP_BITS_BAP_TASKLET 1
679 #define HOSTAP_BITS_BAP_TASKLET2 2
680 unsigned long bits;
681
682 struct ap_data *ap;
683
684 char essid[MAX_SSID_LEN + 1];
685 char name[MAX_NAME_LEN + 1];
686 int name_set;
687 u16 channel_mask; /* mask of allowed channels */
688 u16 scan_channel_mask; /* mask of channels to be scanned */
689 struct comm_tallies_sums comm_tallies;
690 struct proc_dir_entry *proc;
691 int iw_mode; /* operating mode (IW_MODE_*) */
692 int pseudo_adhoc; /* 0: IW_MODE_ADHOC is real 802.11 compliant IBSS
693 * 1: IW_MODE_ADHOC is "pseudo IBSS" */
694 char bssid[ETH_ALEN];
695 int channel;
696 int beacon_int;
697 int dtim_period;
698 int mtu;
699 int frame_dump; /* dump RX/TX frame headers, PRISM2_DUMP_ flags */
700 int fw_tx_rate_control;
701 u16 tx_rate_control;
702 u16 basic_rates;
703 int hw_resetting;
704 int hw_ready;
705 int hw_reset_tries; /* how many times reset has been tried */
706 int hw_downloading;
707 int shutdown;
708 int pri_only;
709 int no_pri; /* no PRI f/w present */
710 int sram_type; /* 8 = x8 SRAM, 16 = x16 SRAM, -1 = unknown */
711
712 enum {
713 PRISM2_TXPOWER_AUTO = 0, PRISM2_TXPOWER_OFF,
714 PRISM2_TXPOWER_FIXED, PRISM2_TXPOWER_UNKNOWN
715 } txpower_type;
716 int txpower; /* if txpower_type == PRISM2_TXPOWER_FIXED */
717
718 /* command queue for hfa384x_cmd(); protected with cmdlock */
719 struct list_head cmd_queue;
720 /* max_len for cmd_queue; in addition, cmd_callback can use two
721 * additional entries to prevent sleeping commands from stopping
722 * transmits */
723 #define HOSTAP_CMD_QUEUE_MAX_LEN 16
724 int cmd_queue_len; /* number of entries in cmd_queue */
725
726 /* if card timeout is detected in interrupt context, reset_queue is
727 * used to schedule card reseting to be done in user context */
728 struct work_struct reset_queue;
729
730 /* For scheduling a change of the promiscuous mode RID */
731 int is_promisc;
732 struct work_struct set_multicast_list_queue;
733
734 struct work_struct set_tim_queue;
735 struct list_head set_tim_list;
736 spinlock_t set_tim_lock;
737
738 int wds_max_connections;
739 int wds_connections;
740 #define HOSTAP_WDS_BROADCAST_RA BIT(0)
741 #define HOSTAP_WDS_AP_CLIENT BIT(1)
742 #define HOSTAP_WDS_STANDARD_FRAME BIT(2)
743 u32 wds_type;
744 u16 tx_control; /* flags to be used in TX description */
745 int manual_retry_count; /* -1 = use f/w default; otherwise retry count
746 * to be used with all frames */
747
748 struct iw_statistics wstats;
749 unsigned long scan_timestamp; /* Time started to scan */
750 enum {
751 PRISM2_MONITOR_80211 = 0, PRISM2_MONITOR_PRISM = 1,
752 PRISM2_MONITOR_CAPHDR = 2, PRISM2_MONITOR_RADIOTAP = 3
753 } monitor_type;
754 int monitor_allow_fcserr;
755
756 int hostapd; /* whether user space daemon, hostapd, is used for AP
757 * management */
758 int hostapd_sta; /* whether hostapd is used with an extra STA interface
759 */
760 struct net_device *apdev;
761 struct net_device_stats apdevstats;
762
763 char assoc_ap_addr[ETH_ALEN];
764 struct net_device *stadev;
765 struct net_device_stats stadevstats;
766
767 #define WEP_KEYS 4
768 #define WEP_KEY_LEN 13
769 struct lib80211_crypt_info crypt_info;
770
771 int open_wep; /* allow unencrypted frames */
772 int host_encrypt;
773 int host_decrypt;
774 int privacy_invoked; /* force privacy invoked flag even if no keys are
775 * configured */
776 int fw_encrypt_ok; /* whether firmware-based WEP encrypt is working
777 * in Host AP mode (STA f/w 1.4.9 or newer) */
778 int bcrx_sta_key; /* use individual keys to override default keys even
779 * with RX of broad/multicast frames */
780
781 struct prism2_frag_entry frag_cache[PRISM2_FRAG_CACHE_LEN];
782 unsigned int frag_next_idx;
783
784 int ieee_802_1x; /* is IEEE 802.1X used */
785
786 int antsel_tx, antsel_rx;
787 int rts_threshold; /* dot11RTSThreshold */
788 int fragm_threshold; /* dot11FragmentationThreshold */
789 int auth_algs; /* PRISM2_AUTH_ flags */
790
791 int enh_sec; /* cnfEnhSecurity options (broadcast SSID hide/ignore) */
792 int tallies32; /* 32-bit tallies in use */
793
794 struct prism2_helper_functions *func;
795
796 u8 *pda;
797 int fw_ap;
798 #define PRISM2_FW_VER(major, minor, variant) \
799 (((major) << 16) | ((minor) << 8) | variant)
800 u32 sta_fw_ver;
801
802 /* Tasklets for handling hardware IRQ related operations outside hw IRQ
803 * handler */
804 struct tasklet_struct bap_tasklet;
805
806 struct tasklet_struct info_tasklet;
807 struct sk_buff_head info_list; /* info frames as skb's for
808 * info_tasklet */
809
810 struct hostap_tx_callback_info *tx_callback; /* registered TX callbacks
811 */
812
813 struct tasklet_struct rx_tasklet;
814 struct sk_buff_head rx_list;
815
816 struct tasklet_struct sta_tx_exc_tasklet;
817 struct sk_buff_head sta_tx_exc_list;
818
819 int host_roaming;
820 unsigned long last_join_time; /* time of last JoinRequest */
821 struct hfa384x_hostscan_result *last_scan_results;
822 int last_scan_results_count;
823 enum { PRISM2_SCAN, PRISM2_HOSTSCAN } last_scan_type;
824 struct work_struct info_queue;
825 unsigned long pending_info; /* bit field of pending info_queue items */
826 #define PRISM2_INFO_PENDING_LINKSTATUS 0
827 #define PRISM2_INFO_PENDING_SCANRESULTS 1
828 int prev_link_status; /* previous received LinkStatus info */
829 int prev_linkstatus_connected;
830 u8 preferred_ap[ETH_ALEN]; /* use this AP if possible */
831
832 #ifdef PRISM2_CALLBACK
833 void *callback_data; /* Can be used in callbacks; e.g., allocate
834 * on enable event and free on disable event.
835 * Host AP driver code does not touch this. */
836 #endif /* PRISM2_CALLBACK */
837
838 wait_queue_head_t hostscan_wq;
839
840 /* Passive scan in Host AP mode */
841 struct timer_list passive_scan_timer;
842 int passive_scan_interval; /* in seconds, 0 = disabled */
843 int passive_scan_channel;
844 enum { PASSIVE_SCAN_WAIT, PASSIVE_SCAN_LISTEN } passive_scan_state;
845
846 struct timer_list tick_timer;
847 unsigned long last_tick_timer;
848 unsigned int sw_tick_stuck;
849
850 /* commsQuality / dBmCommsQuality data from periodic polling; only
851 * valid for Managed and Ad-hoc modes */
852 unsigned long last_comms_qual_update;
853 int comms_qual; /* in some odd unit.. */
854 int avg_signal; /* in dB (note: negative) */
855 int avg_noise; /* in dB (note: negative) */
856 struct work_struct comms_qual_update;
857
858 /* RSSI to dBm adjustment (for RX descriptor fields) */
859 int rssi_to_dBm; /* subtract from RSSI to get approximate dBm value */
860
861 /* BSS list / protected by local->lock */
862 struct list_head bss_list;
863 int num_bss_info;
864 int wpa; /* WPA support enabled */
865 int tkip_countermeasures;
866 int drop_unencrypted;
867 /* Generic IEEE 802.11 info element to be added to
868 * ProbeResp/Beacon/(Re)AssocReq */
869 u8 *generic_elem;
870 size_t generic_elem_len;
871
872 #ifdef PRISM2_DOWNLOAD_SUPPORT
873 /* Persistent volatile download data */
874 struct prism2_download_data *dl_pri;
875 struct prism2_download_data *dl_sec;
876 #endif /* PRISM2_DOWNLOAD_SUPPORT */
877
878 #ifdef PRISM2_IO_DEBUG
879 #define PRISM2_IO_DEBUG_SIZE 10000
880 u32 io_debug[PRISM2_IO_DEBUG_SIZE];
881 int io_debug_head;
882 int io_debug_enabled;
883 #endif /* PRISM2_IO_DEBUG */
884
885 /* Pointer to hardware model specific (cs,pci,plx) private data. */
886 void *hw_priv;
887 };
888
889
890 /* Per interface private Host AP data
891 * Allocated for each net device that Host AP uses (wlan#, wlan#ap, wlan#sta,
892 * WDS) and netdev_priv(dev) points to this structure. */
893 struct hostap_interface {
894 struct list_head list; /* list entry in Host AP interface list */
895 struct net_device *dev; /* pointer to this device */
896 struct local_info *local; /* pointer to shared private data */
897 struct net_device_stats stats;
898 struct iw_spy_data spy_data; /* iwspy support */
899 struct iw_public_data wireless_data;
900
901 enum {
902 HOSTAP_INTERFACE_MASTER,
903 HOSTAP_INTERFACE_MAIN,
904 HOSTAP_INTERFACE_AP,
905 HOSTAP_INTERFACE_STA,
906 HOSTAP_INTERFACE_WDS,
907 } type;
908
909 union {
910 struct hostap_interface_wds {
911 u8 remote_addr[ETH_ALEN];
912 } wds;
913 } u;
914 };
915
916
917 #define HOSTAP_SKB_TX_DATA_MAGIC 0xf08a36a2
918
919 /*
920 * TX meta data - stored in skb->cb buffer, so this must not be increased over
921 * the 48-byte limit.
922 * THE PADDING THIS STARTS WITH IS A HORRIBLE HACK THAT SHOULD NOT LIVE
923 * TO SEE THE DAY.
924 */
925 struct hostap_skb_tx_data {
926 unsigned int __padding_for_default_qdiscs;
927 u32 magic; /* HOSTAP_SKB_TX_DATA_MAGIC */
928 u8 rate; /* transmit rate */
929 #define HOSTAP_TX_FLAGS_WDS BIT(0)
930 #define HOSTAP_TX_FLAGS_BUFFERED_FRAME BIT(1)
931 #define HOSTAP_TX_FLAGS_ADD_MOREDATA BIT(2)
932 u8 flags; /* HOSTAP_TX_FLAGS_* */
933 u16 tx_cb_idx;
934 struct hostap_interface *iface;
935 unsigned long jiffies; /* queueing timestamp */
936 unsigned short ethertype;
937 };
938
939
940 #ifndef PRISM2_NO_DEBUG
941
942 #define DEBUG_FID BIT(0)
943 #define DEBUG_PS BIT(1)
944 #define DEBUG_FLOW BIT(2)
945 #define DEBUG_AP BIT(3)
946 #define DEBUG_HW BIT(4)
947 #define DEBUG_EXTRA BIT(5)
948 #define DEBUG_EXTRA2 BIT(6)
949 #define DEBUG_PS2 BIT(7)
950 #define DEBUG_MASK (DEBUG_PS | DEBUG_AP | DEBUG_HW | DEBUG_EXTRA)
951 #define PDEBUG(n, args...) \
952 do { if ((n) & DEBUG_MASK) printk(KERN_DEBUG args); } while (0)
953 #define PDEBUG2(n, args...) \
954 do { if ((n) & DEBUG_MASK) printk(args); } while (0)
955
956 #else /* PRISM2_NO_DEBUG */
957
958 #define PDEBUG(n, args...)
959 #define PDEBUG2(n, args...)
960
961 #endif /* PRISM2_NO_DEBUG */
962
963 enum { BAP0 = 0, BAP1 = 1 };
964
965 #define PRISM2_IO_DEBUG_CMD_INB 0
966 #define PRISM2_IO_DEBUG_CMD_INW 1
967 #define PRISM2_IO_DEBUG_CMD_INSW 2
968 #define PRISM2_IO_DEBUG_CMD_OUTB 3
969 #define PRISM2_IO_DEBUG_CMD_OUTW 4
970 #define PRISM2_IO_DEBUG_CMD_OUTSW 5
971 #define PRISM2_IO_DEBUG_CMD_ERROR 6
972 #define PRISM2_IO_DEBUG_CMD_INTERRUPT 7
973
974 #ifdef PRISM2_IO_DEBUG
975
976 #define PRISM2_IO_DEBUG_ENTRY(cmd, reg, value) \
977 (((cmd) << 24) | ((reg) << 16) | value)
978
prism2_io_debug_add(struct net_device * dev,int cmd,int reg,int value)979 static inline void prism2_io_debug_add(struct net_device *dev, int cmd,
980 int reg, int value)
981 {
982 struct hostap_interface *iface = netdev_priv(dev);
983 local_info_t *local = iface->local;
984
985 if (!local->io_debug_enabled)
986 return;
987
988 local->io_debug[local->io_debug_head] = jiffies & 0xffffffff;
989 if (++local->io_debug_head >= PRISM2_IO_DEBUG_SIZE)
990 local->io_debug_head = 0;
991 local->io_debug[local->io_debug_head] =
992 PRISM2_IO_DEBUG_ENTRY(cmd, reg, value);
993 if (++local->io_debug_head >= PRISM2_IO_DEBUG_SIZE)
994 local->io_debug_head = 0;
995 }
996
997
prism2_io_debug_error(struct net_device * dev,int err)998 static inline void prism2_io_debug_error(struct net_device *dev, int err)
999 {
1000 struct hostap_interface *iface = netdev_priv(dev);
1001 local_info_t *local = iface->local;
1002 unsigned long flags;
1003
1004 if (!local->io_debug_enabled)
1005 return;
1006
1007 spin_lock_irqsave(&local->lock, flags);
1008 prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_ERROR, 0, err);
1009 if (local->io_debug_enabled == 1) {
1010 local->io_debug_enabled = 0;
1011 printk(KERN_DEBUG "%s: I/O debug stopped\n", dev->name);
1012 }
1013 spin_unlock_irqrestore(&local->lock, flags);
1014 }
1015
1016 #else /* PRISM2_IO_DEBUG */
1017
prism2_io_debug_add(struct net_device * dev,int cmd,int reg,int value)1018 static inline void prism2_io_debug_add(struct net_device *dev, int cmd,
1019 int reg, int value)
1020 {
1021 }
1022
prism2_io_debug_error(struct net_device * dev,int err)1023 static inline void prism2_io_debug_error(struct net_device *dev, int err)
1024 {
1025 }
1026
1027 #endif /* PRISM2_IO_DEBUG */
1028
1029
1030 #ifdef PRISM2_CALLBACK
1031 enum {
1032 /* Called when card is enabled */
1033 PRISM2_CALLBACK_ENABLE,
1034
1035 /* Called when card is disabled */
1036 PRISM2_CALLBACK_DISABLE,
1037
1038 /* Called when RX/TX starts/ends */
1039 PRISM2_CALLBACK_RX_START, PRISM2_CALLBACK_RX_END,
1040 PRISM2_CALLBACK_TX_START, PRISM2_CALLBACK_TX_END
1041 };
1042 void prism2_callback(local_info_t *local, int event);
1043 #else /* PRISM2_CALLBACK */
1044 #define prism2_callback(d, e) do { } while (0)
1045 #endif /* PRISM2_CALLBACK */
1046
1047 #endif /* __KERNEL__ */
1048
1049 #endif /* HOSTAP_WLAN_H */
1050
