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>
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.
11 * This driver was based on information from the Sourceforge driver
12 * released and maintained by Atmel:
14 * http://sourceforge.net/projects/atmelwlandriver/
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!
27 BOARD_503_ISL3861 = 1,
28 BOARD_503_ISL3863 = 2,
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
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
54 #define CMD_SET_MIB 0x01
55 #define CMD_GET_MIB 0x02
58 #define CMD_START_IBSS 0x05
59 #define CMD_RADIO_ON 0x06
60 #define CMD_RADIO_OFF 0x07
61 #define CMD_STARTUP 0x0B
63 #define MIB_LOCAL 0x01
64 #define MIB_MAC_ADDR 0x02
66 #define MIB_MAC_MGMT 0x05
67 #define MIB_MAC_WEP 0x06
69 #define MIB_FW_VERSION 0x08
70 #define MIB_MDOMAIN 0x09
73 #define INFRASTRUCTURE_MODE 2
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
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
87 /* power management modes */
90 #define AT76_PM_SMART 3
97 u8 mac_addr[ETH_ALEN];
102 } __attribute__((packed));
109 u8 mac_addr[ETH_ALEN];
110 u8 regulatory_domain;
111 u8 low_power_values[14];
112 u8 normal_power_values[14];
114 } __attribute__((packed));
116 struct hwcfg_intersil {
117 u8 mac_addr[ETH_ALEN];
121 u8 regulatory_domain;
123 } __attribute__((packed));
126 struct hwcfg_intersil i;
127 struct hwcfg_rfmd r3;
128 struct hwcfg_r505 r5;
131 #define WEP_SMALL_KEY_LEN (40 / 8)
132 #define WEP_LARGE_KEY_LEN (104 / 8)
135 struct at76_card_config {
136 u8 exclude_unencrypted;
138 u8 short_retry_limit;
140 __le16 rts_threshold;
141 __le16 fragmentation_threshold; /* 256..2346 */
142 u8 basic_rate_set[4];
143 u8 auto_rate_fallback; /* 0,1 */
146 u8 wep_default_key_id; /* 0..3 */
148 u8 wep_default_key_value[4][WEP_LARGE_KEY_LEN];
151 __le16 beacon_period;
152 } __attribute__((packed));
154 struct at76_command {
159 } __attribute__((packed));
161 /* Length of Atmel-specific Rx header before 802.11 frame */
162 #define AT76_RX_HDRLEN offsetof(struct at76_rx_buffer, packet)
164 struct at76_rx_buffer {
173 u8 packet[IEEE80211_MAX_FRAG_THRESHOLD];
174 } __attribute__((packed));
176 /* Length of Atmel-specific Tx header before 802.11 frame */
177 #define AT76_TX_HDRLEN offsetof(struct at76_tx_buffer, packet)
179 struct at76_tx_buffer {
184 u8 packet[IEEE80211_MAX_FRAG_THRESHOLD];
185 } __attribute__((packed));
187 /* defines for scan_type below */
188 #define SCAN_TYPE_ACTIVE 0
189 #define SCAN_TYPE_PASSIVE 1
191 struct at76_req_scan {
197 __le16 min_channel_time;
198 __le16 max_channel_time;
200 u8 international_scan;
201 } __attribute__((packed));
203 struct at76_req_ibss {
210 } __attribute__((packed));
212 struct at76_req_join {
220 } __attribute__((packed));
222 struct set_mib_buffer {
232 } __attribute__((packed));
237 u8 txautorate_fallback;
244 } __attribute__((packed));
246 struct mib_mac_addr {
247 u8 mac_addr[ETH_ALEN];
249 u8 group_addr[4][ETH_ALEN];
250 u8 group_addr_status[4];
251 } __attribute__((packed));
254 __le32 max_tx_msdu_lifetime;
255 __le32 max_rx_lifetime;
256 __le16 frag_threshold;
257 __le16 rts_threshold;
262 u8 scan_type; /* active or passive */
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;
269 u8 desired_bssid[ETH_ALEN];
270 u8 desired_bsstype; /* ad-hoc or infrastructure */
272 } __attribute__((packed));
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 */
281 u8 privacy_option_implemented;
284 u8 current_bssid[ETH_ALEN];
285 u8 current_essid[32];
291 u8 multi_domain_capability_implemented;
292 u8 multi_domain_capability_enabled;
293 u8 country_string[3];
295 } __attribute__((packed));
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));
313 __le16 preamble_length;
314 __le16 plcp_header_length;
315 __le16 mpdu_max_length;
316 __le16 cca_mode_supported;
318 u8 operation_rate_set[4];
322 u8 current_reg_domain;
323 } __attribute__((packed));
325 struct mib_fw_version {
330 } __attribute__((packed));
333 u8 tx_powerlevel[14];
334 u8 channel_list[14]; /* 0 for invalid channels */
335 } __attribute__((packed));
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));
351 /* a description of a regulatory domain and the allowed channels */
355 u32 channel_map; /* if bit N is set, channel (N+1) is allowed */
358 /* Data for one loaded firmware file */
360 const char *const fwname;
361 const struct firmware *fw;
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 */
373 struct usb_device *udev; /* USB device pointer */
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 */
379 struct urb *tx_urb; /* URB for sending data */
380 struct urb *rx_urb; /* URB for receiving data */
382 unsigned int tx_pipe; /* bulk out pipe */
383 unsigned int rx_pipe; /* bulk in pipe */
385 struct mutex mtx; /* locks this structure */
388 struct work_struct work_set_promisc;
389 struct work_struct work_submit_rx;
390 struct delayed_work dwork_hw_scan;
392 struct tasklet_struct rx_tasklet;
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 */
403 u8 essid[IW_ESSID_MAX_SIZE];
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;
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 */
420 u16 assoc_id; /* current association ID, if associated */
422 u8 pm_mode; /* power management mode */
423 u32 pm_period; /* power management period in microseconds */
425 struct reg_domain const *domain; /* reg domain description */
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;
432 struct at76_card_config card_config;
434 enum board_type board_type;
435 struct mib_fw_version fw_version;
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 */
441 int beacon_period; /* period of mgmt beacons, Kus */
443 struct ieee80211_hw *hw;
444 int mac80211_registered;
447 #define AT76_SUPPORTED_FILTERS FIF_PROMISC_IN_BSS
449 #define SCAN_POLL_INTERVAL (HZ / 4)
451 #define CMD_COMPLETION_TIMEOUT (5 * HZ)
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
460 /* the max padding size for tx in bytes (see calc_padding) */
461 #define MAX_PADDING_SIZE 53
463 #endif /* _AT76_USB_H */