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1264b951 KV |
1 | /* |
2 | * Copyright (c) 2002,2003 Oliver Kurth | |
3 | * (c) 2003,2004 Joerg Albert <joerg.albert@gmx.de> | |
4 | * (c) 2007 Guido Guenther <agx@sigxcpu.org> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU General Public License as | |
8 | * published by the Free Software Foundation; either version 2 of | |
9 | * the License, or (at your option) any later version. | |
10 | * | |
11 | * This driver was based on information from the Sourceforge driver | |
12 | * released and maintained by Atmel: | |
13 | * | |
14 | * http://sourceforge.net/projects/atmelwlandriver/ | |
15 | * | |
16 | * Although the code was completely re-written, | |
17 | * it would have been impossible without Atmel's decision to | |
18 | * release an Open Source driver (unfortunately the firmware was | |
19 | * kept binary only). Thanks for that decision to Atmel! | |
20 | */ | |
21 | ||
22 | #ifndef _AT76_USB_H | |
23 | #define _AT76_USB_H | |
24 | ||
25 | /* Board types */ | |
26 | enum board_type { | |
27 | BOARD_503_ISL3861 = 1, | |
28 | BOARD_503_ISL3863 = 2, | |
29 | BOARD_503 = 3, | |
30 | BOARD_503_ACC = 4, | |
31 | BOARD_505 = 5, | |
32 | BOARD_505_2958 = 6, | |
33 | BOARD_505A = 7, | |
34 | BOARD_505AMX = 8 | |
35 | }; | |
36 | ||
37 | #define CMD_STATUS_IDLE 0x00 | |
38 | #define CMD_STATUS_COMPLETE 0x01 | |
39 | #define CMD_STATUS_UNKNOWN 0x02 | |
40 | #define CMD_STATUS_INVALID_PARAMETER 0x03 | |
41 | #define CMD_STATUS_FUNCTION_NOT_SUPPORTED 0x04 | |
42 | #define CMD_STATUS_TIME_OUT 0x07 | |
43 | #define CMD_STATUS_IN_PROGRESS 0x08 | |
44 | #define CMD_STATUS_HOST_FAILURE 0xff | |
45 | #define CMD_STATUS_SCAN_FAILED 0xf0 | |
46 | ||
47 | /* answers to get op mode */ | |
48 | #define OPMODE_NONE 0x00 | |
49 | #define OPMODE_NORMAL_NIC_WITH_FLASH 0x01 | |
50 | #define OPMODE_HW_CONFIG_MODE 0x02 | |
51 | #define OPMODE_DFU_MODE_WITH_FLASH 0x03 | |
52 | #define OPMODE_NORMAL_NIC_WITHOUT_FLASH 0x04 | |
53 | ||
54 | #define CMD_SET_MIB 0x01 | |
55 | #define CMD_GET_MIB 0x02 | |
56 | #define CMD_SCAN 0x03 | |
57 | #define CMD_JOIN 0x04 | |
58 | #define CMD_START_IBSS 0x05 | |
59 | #define CMD_RADIO_ON 0x06 | |
60 | #define CMD_RADIO_OFF 0x07 | |
61 | #define CMD_STARTUP 0x0B | |
62 | ||
63 | #define MIB_LOCAL 0x01 | |
64 | #define MIB_MAC_ADDR 0x02 | |
65 | #define MIB_MAC 0x03 | |
66 | #define MIB_MAC_MGMT 0x05 | |
67 | #define MIB_MAC_WEP 0x06 | |
68 | #define MIB_PHY 0x07 | |
69 | #define MIB_FW_VERSION 0x08 | |
70 | #define MIB_MDOMAIN 0x09 | |
71 | ||
72 | #define ADHOC_MODE 1 | |
73 | #define INFRASTRUCTURE_MODE 2 | |
74 | ||
75 | /* values for struct mib_local, field preamble_type */ | |
76 | #define PREAMBLE_TYPE_LONG 0 | |
77 | #define PREAMBLE_TYPE_SHORT 1 | |
78 | #define PREAMBLE_TYPE_AUTO 2 | |
79 | ||
80 | /* values for tx_rate */ | |
81 | #define TX_RATE_1MBIT 0 | |
82 | #define TX_RATE_2MBIT 1 | |
83 | #define TX_RATE_5_5MBIT 2 | |
84 | #define TX_RATE_11MBIT 3 | |
85 | #define TX_RATE_AUTO 4 | |
86 | ||
87 | /* power management modes */ | |
88 | #define AT76_PM_OFF 1 | |
89 | #define AT76_PM_ON 2 | |
90 | #define AT76_PM_SMART 3 | |
91 | ||
92 | struct hwcfg_r505 { | |
93 | u8 cr39_values[14]; | |
94 | u8 reserved1[14]; | |
95 | u8 bb_cr[14]; | |
96 | u8 pidvid[4]; | |
97 | u8 mac_addr[ETH_ALEN]; | |
98 | u8 regulatory_domain; | |
99 | u8 reserved2[14]; | |
100 | u8 cr15_values[14]; | |
101 | u8 reserved3[3]; | |
102 | } __attribute__((packed)); | |
103 | ||
104 | struct hwcfg_rfmd { | |
105 | u8 cr20_values[14]; | |
106 | u8 cr21_values[14]; | |
107 | u8 bb_cr[14]; | |
108 | u8 pidvid[4]; | |
109 | u8 mac_addr[ETH_ALEN]; | |
110 | u8 regulatory_domain; | |
111 | u8 low_power_values[14]; | |
112 | u8 normal_power_values[14]; | |
113 | u8 reserved1[3]; | |
114 | } __attribute__((packed)); | |
115 | ||
116 | struct hwcfg_intersil { | |
117 | u8 mac_addr[ETH_ALEN]; | |
118 | u8 cr31_values[14]; | |
119 | u8 cr58_values[14]; | |
120 | u8 pidvid[4]; | |
121 | u8 regulatory_domain; | |
122 | u8 reserved[1]; | |
123 | } __attribute__((packed)); | |
124 | ||
125 | union at76_hwcfg { | |
126 | struct hwcfg_intersil i; | |
127 | struct hwcfg_rfmd r3; | |
128 | struct hwcfg_r505 r5; | |
129 | }; | |
130 | ||
131 | #define WEP_SMALL_KEY_LEN (40 / 8) | |
132 | #define WEP_LARGE_KEY_LEN (104 / 8) | |
133 | #define WEP_KEYS (4) | |
134 | ||
135 | struct at76_card_config { | |
136 | u8 exclude_unencrypted; | |
137 | u8 promiscuous_mode; | |
138 | u8 short_retry_limit; | |
139 | u8 encryption_type; | |
140 | __le16 rts_threshold; | |
141 | __le16 fragmentation_threshold; /* 256..2346 */ | |
142 | u8 basic_rate_set[4]; | |
143 | u8 auto_rate_fallback; /* 0,1 */ | |
144 | u8 channel; | |
145 | u8 privacy_invoked; | |
146 | u8 wep_default_key_id; /* 0..3 */ | |
147 | u8 current_ssid[32]; | |
148 | u8 wep_default_key_value[4][WEP_LARGE_KEY_LEN]; | |
149 | u8 ssid_len; | |
150 | u8 short_preamble; | |
151 | __le16 beacon_period; | |
152 | } __attribute__((packed)); | |
153 | ||
154 | struct at76_command { | |
155 | u8 cmd; | |
156 | u8 reserved; | |
157 | __le16 size; | |
158 | u8 data[0]; | |
159 | } __attribute__((packed)); | |
160 | ||
161 | /* Length of Atmel-specific Rx header before 802.11 frame */ | |
162 | #define AT76_RX_HDRLEN offsetof(struct at76_rx_buffer, packet) | |
163 | ||
164 | struct at76_rx_buffer { | |
165 | __le16 wlength; | |
166 | u8 rx_rate; | |
167 | u8 newbss; | |
168 | u8 fragmentation; | |
169 | u8 rssi; | |
170 | u8 link_quality; | |
171 | u8 noise_level; | |
172 | __le32 rx_time; | |
173 | u8 packet[IEEE80211_MAX_FRAG_THRESHOLD]; | |
174 | } __attribute__((packed)); | |
175 | ||
176 | /* Length of Atmel-specific Tx header before 802.11 frame */ | |
177 | #define AT76_TX_HDRLEN offsetof(struct at76_tx_buffer, packet) | |
178 | ||
179 | struct at76_tx_buffer { | |
180 | __le16 wlength; | |
181 | u8 tx_rate; | |
182 | u8 padding; | |
183 | u8 reserved[4]; | |
184 | u8 packet[IEEE80211_MAX_FRAG_THRESHOLD]; | |
185 | } __attribute__((packed)); | |
186 | ||
187 | /* defines for scan_type below */ | |
188 | #define SCAN_TYPE_ACTIVE 0 | |
189 | #define SCAN_TYPE_PASSIVE 1 | |
190 | ||
191 | struct at76_req_scan { | |
192 | u8 bssid[ETH_ALEN]; | |
193 | u8 essid[32]; | |
194 | u8 scan_type; | |
195 | u8 channel; | |
196 | __le16 probe_delay; | |
197 | __le16 min_channel_time; | |
198 | __le16 max_channel_time; | |
199 | u8 essid_size; | |
200 | u8 international_scan; | |
201 | } __attribute__((packed)); | |
202 | ||
203 | struct at76_req_ibss { | |
204 | u8 bssid[ETH_ALEN]; | |
205 | u8 essid[32]; | |
206 | u8 bss_type; | |
207 | u8 channel; | |
208 | u8 essid_size; | |
209 | u8 reserved[3]; | |
210 | } __attribute__((packed)); | |
211 | ||
212 | struct at76_req_join { | |
213 | u8 bssid[ETH_ALEN]; | |
214 | u8 essid[32]; | |
215 | u8 bss_type; | |
216 | u8 channel; | |
217 | __le16 timeout; | |
218 | u8 essid_size; | |
219 | u8 reserved; | |
220 | } __attribute__((packed)); | |
221 | ||
222 | struct set_mib_buffer { | |
223 | u8 type; | |
224 | u8 size; | |
225 | u8 index; | |
226 | u8 reserved; | |
227 | union { | |
228 | u8 byte; | |
229 | __le16 word; | |
230 | u8 addr[ETH_ALEN]; | |
231 | } data; | |
232 | } __attribute__((packed)); | |
233 | ||
234 | struct mib_local { | |
235 | u16 reserved0; | |
236 | u8 beacon_enable; | |
237 | u8 txautorate_fallback; | |
238 | u8 reserved1; | |
239 | u8 ssid_size; | |
240 | u8 promiscuous_mode; | |
241 | u16 reserved2; | |
242 | u8 preamble_type; | |
243 | u16 reserved3; | |
244 | } __attribute__((packed)); | |
245 | ||
246 | struct mib_mac_addr { | |
247 | u8 mac_addr[ETH_ALEN]; | |
248 | u8 res[2]; /* ??? */ | |
249 | u8 group_addr[4][ETH_ALEN]; | |
250 | u8 group_addr_status[4]; | |
251 | } __attribute__((packed)); | |
252 | ||
253 | struct mib_mac { | |
254 | __le32 max_tx_msdu_lifetime; | |
255 | __le32 max_rx_lifetime; | |
256 | __le16 frag_threshold; | |
257 | __le16 rts_threshold; | |
258 | __le16 cwmin; | |
259 | __le16 cwmax; | |
260 | u8 short_retry_time; | |
261 | u8 long_retry_time; | |
262 | u8 scan_type; /* active or passive */ | |
263 | u8 scan_channel; | |
264 | __le16 probe_delay; /* delay before ProbeReq in active scan, RO */ | |
265 | __le16 min_channel_time; | |
266 | __le16 max_channel_time; | |
267 | __le16 listen_interval; | |
268 | u8 desired_ssid[32]; | |
269 | u8 desired_bssid[ETH_ALEN]; | |
270 | u8 desired_bsstype; /* ad-hoc or infrastructure */ | |
271 | u8 reserved2; | |
272 | } __attribute__((packed)); | |
273 | ||
274 | struct mib_mac_mgmt { | |
275 | __le16 beacon_period; | |
276 | __le16 CFP_max_duration; | |
277 | __le16 medium_occupancy_limit; | |
278 | __le16 station_id; /* assoc id */ | |
279 | __le16 ATIM_window; | |
280 | u8 CFP_mode; | |
281 | u8 privacy_option_implemented; | |
282 | u8 DTIM_period; | |
283 | u8 CFP_period; | |
284 | u8 current_bssid[ETH_ALEN]; | |
285 | u8 current_essid[32]; | |
286 | u8 current_bss_type; | |
287 | u8 power_mgmt_mode; | |
288 | /* rfmd and 505 */ | |
289 | u8 ibss_change; | |
290 | u8 res; | |
291 | u8 multi_domain_capability_implemented; | |
292 | u8 multi_domain_capability_enabled; | |
293 | u8 country_string[3]; | |
294 | u8 reserved[3]; | |
295 | } __attribute__((packed)); | |
296 | ||
297 | struct mib_mac_wep { | |
298 | u8 privacy_invoked; /* 0 disable encr., 1 enable encr */ | |
299 | u8 wep_default_key_id; | |
300 | u8 wep_key_mapping_len; | |
301 | u8 exclude_unencrypted; | |
302 | __le32 wep_icv_error_count; | |
303 | __le32 wep_excluded_count; | |
304 | u8 wep_default_keyvalue[WEP_KEYS][WEP_LARGE_KEY_LEN]; | |
305 | u8 encryption_level; /* 1 for 40bit, 2 for 104bit encryption */ | |
306 | } __attribute__((packed)); | |
307 | ||
308 | struct mib_phy { | |
309 | __le32 ed_threshold; | |
310 | ||
311 | __le16 slot_time; | |
312 | __le16 sifs_time; | |
313 | __le16 preamble_length; | |
314 | __le16 plcp_header_length; | |
315 | __le16 mpdu_max_length; | |
316 | __le16 cca_mode_supported; | |
317 | ||
318 | u8 operation_rate_set[4]; | |
319 | u8 channel_id; | |
320 | u8 current_cca_mode; | |
321 | u8 phy_type; | |
322 | u8 current_reg_domain; | |
323 | } __attribute__((packed)); | |
324 | ||
325 | struct mib_fw_version { | |
326 | u8 major; | |
327 | u8 minor; | |
328 | u8 patch; | |
329 | u8 build; | |
330 | } __attribute__((packed)); | |
331 | ||
332 | struct mib_mdomain { | |
333 | u8 tx_powerlevel[14]; | |
334 | u8 channel_list[14]; /* 0 for invalid channels */ | |
335 | } __attribute__((packed)); | |
336 | ||
337 | struct at76_fw_header { | |
338 | __le32 crc; /* CRC32 of the whole image */ | |
339 | __le32 board_type; /* firmware compatibility code */ | |
340 | u8 build; /* firmware build number */ | |
341 | u8 patch; /* firmware patch level */ | |
342 | u8 minor; /* firmware minor version */ | |
343 | u8 major; /* firmware major version */ | |
344 | __le32 str_offset; /* offset of the copyright string */ | |
345 | __le32 int_fw_offset; /* internal firmware image offset */ | |
346 | __le32 int_fw_len; /* internal firmware image length */ | |
347 | __le32 ext_fw_offset; /* external firmware image offset */ | |
348 | __le32 ext_fw_len; /* external firmware image length */ | |
349 | } __attribute__((packed)); | |
350 | ||
351 | /* a description of a regulatory domain and the allowed channels */ | |
352 | struct reg_domain { | |
353 | u16 code; | |
354 | char const *name; | |
355 | u32 channel_map; /* if bit N is set, channel (N+1) is allowed */ | |
356 | }; | |
357 | ||
358 | /* Data for one loaded firmware file */ | |
359 | struct fwentry { | |
360 | const char *const fwname; | |
361 | const struct firmware *fw; | |
362 | int extfw_size; | |
363 | int intfw_size; | |
364 | /* pointer to loaded firmware, no need to free */ | |
365 | u8 *extfw; /* external firmware, extfw_size bytes long */ | |
366 | u8 *intfw; /* internal firmware, intfw_size bytes long */ | |
367 | enum board_type board_type; /* board type */ | |
368 | struct mib_fw_version fw_version; | |
369 | int loaded; /* Loaded and parsed successfully */ | |
370 | }; | |
371 | ||
372 | struct at76_priv { | |
373 | struct usb_device *udev; /* USB device pointer */ | |
374 | ||
375 | struct sk_buff *rx_skb; /* skbuff for receiving data */ | |
376 | struct sk_buff *tx_skb; /* skbuff for transmitting data */ | |
377 | void *bulk_out_buffer; /* buffer for sending data */ | |
378 | ||
379 | struct urb *tx_urb; /* URB for sending data */ | |
380 | struct urb *rx_urb; /* URB for receiving data */ | |
381 | ||
382 | unsigned int tx_pipe; /* bulk out pipe */ | |
383 | unsigned int rx_pipe; /* bulk in pipe */ | |
384 | ||
385 | struct mutex mtx; /* locks this structure */ | |
386 | ||
387 | /* work queues */ | |
388 | struct work_struct work_set_promisc; | |
389 | struct work_struct work_submit_rx; | |
390 | struct delayed_work dwork_hw_scan; | |
391 | ||
392 | struct tasklet_struct rx_tasklet; | |
393 | ||
394 | /* the WEP stuff */ | |
395 | int wep_enabled; /* 1 if WEP is enabled */ | |
396 | int wep_key_id; /* key id to be used */ | |
397 | u8 wep_keys[WEP_KEYS][WEP_LARGE_KEY_LEN]; /* WEP keys */ | |
398 | u8 wep_keys_len[WEP_KEYS]; /* length of WEP keys */ | |
399 | ||
400 | int channel; | |
401 | int iw_mode; | |
402 | u8 bssid[ETH_ALEN]; | |
403 | u8 essid[IW_ESSID_MAX_SIZE]; | |
404 | int essid_size; | |
405 | int radio_on; | |
406 | int promisc; | |
407 | ||
408 | int preamble_type; /* 0 - long, 1 - short, 2 - auto */ | |
409 | int auth_mode; /* authentication type: 0 open, 1 shared key */ | |
410 | int txrate; /* 0,1,2,3 = 1,2,5.5,11 Mbps, 4 is auto */ | |
411 | int frag_threshold; /* threshold for fragmentation of tx packets */ | |
412 | int rts_threshold; /* threshold for RTS mechanism */ | |
413 | int short_retry_limit; | |
414 | ||
415 | int scan_min_time; /* scan min channel time */ | |
416 | int scan_max_time; /* scan max channel time */ | |
417 | int scan_mode; /* SCAN_TYPE_ACTIVE, SCAN_TYPE_PASSIVE */ | |
418 | int scan_need_any; /* if set, need to scan for any ESSID */ | |
419 | ||
420 | u16 assoc_id; /* current association ID, if associated */ | |
421 | ||
422 | u8 pm_mode; /* power management mode */ | |
423 | u32 pm_period; /* power management period in microseconds */ | |
424 | ||
425 | struct reg_domain const *domain; /* reg domain description */ | |
426 | ||
427 | /* These fields contain HW config provided by the device (not all of | |
428 | * these fields are used by all board types) */ | |
429 | u8 mac_addr[ETH_ALEN]; | |
430 | u8 regulatory_domain; | |
431 | ||
432 | struct at76_card_config card_config; | |
433 | ||
434 | enum board_type board_type; | |
435 | struct mib_fw_version fw_version; | |
436 | ||
437 | unsigned int device_unplugged:1; | |
438 | unsigned int netdev_registered:1; | |
439 | struct set_mib_buffer mib_buf; /* global buffer for set_mib calls */ | |
440 | ||
441 | int beacon_period; /* period of mgmt beacons, Kus */ | |
442 | ||
443 | struct ieee80211_hw *hw; | |
444 | int mac80211_registered; | |
445 | }; | |
446 | ||
447 | #define AT76_SUPPORTED_FILTERS FIF_PROMISC_IN_BSS | |
448 | ||
449 | #define SCAN_POLL_INTERVAL (HZ / 4) | |
450 | ||
451 | #define CMD_COMPLETION_TIMEOUT (5 * HZ) | |
452 | ||
453 | #define DEF_RTS_THRESHOLD 1536 | |
454 | #define DEF_FRAG_THRESHOLD 1536 | |
455 | #define DEF_SHORT_RETRY_LIMIT 8 | |
456 | #define DEF_CHANNEL 10 | |
457 | #define DEF_SCAN_MIN_TIME 10 | |
458 | #define DEF_SCAN_MAX_TIME 120 | |
459 | ||
460 | /* the max padding size for tx in bytes (see calc_padding) */ | |
461 | #define MAX_PADDING_SIZE 53 | |
462 | ||
463 | #endif /* _AT76_USB_H */ |