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