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 */ 26enum 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 92struct 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} __packed; 103 104struct 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} __packed; 115 116struct 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} __packed; 124 125union 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 135struct 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} __packed; 153 154struct at76_command { 155 u8 cmd; 156 u8 reserved; 157 __le16 size; 158 u8 data[0]; 159} __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 164struct 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} __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 179struct 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} __packed; 186 187/* defines for scan_type below */ 188#define SCAN_TYPE_ACTIVE 0 189#define SCAN_TYPE_PASSIVE 1 190 191struct 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} __packed; 202 203struct 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} __packed; 211 212struct 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} __packed; 221 222struct 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} __packed; 233 234struct 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} __packed; 245 246struct 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} __packed; 252 253struct 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} __packed; 273 274struct 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} __packed; 296 297struct 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} __packed; 307 308struct 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} __packed; 324 325struct mib_fw_version { 326 u8 major; 327 u8 minor; 328 u8 patch; 329 u8 build; 330} __packed; 331 332struct mib_mdomain { 333 u8 tx_powerlevel[14]; 334 u8 channel_list[14]; /* 0 for invalid channels */ 335} __packed; 336 337struct 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} __packed; 350 351/* a description of a regulatory domain and the allowed channels */ 352struct 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 */ 359struct 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 372struct 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 work_struct work_join_bssid; 391 struct delayed_work dwork_hw_scan; 392 393 struct tasklet_struct rx_tasklet; 394 395 /* the WEP stuff */ 396 int wep_enabled; /* 1 if WEP is enabled */ 397 int wep_key_id; /* key id to be used */ 398 u8 wep_keys[WEP_KEYS][WEP_LARGE_KEY_LEN]; /* WEP keys */ 399 u8 wep_keys_len[WEP_KEYS]; /* length of WEP keys */ 400 401 int channel; 402 int iw_mode; 403 u8 bssid[ETH_ALEN]; 404 u8 essid[IW_ESSID_MAX_SIZE]; 405 int essid_size; 406 int radio_on; 407 int promisc; 408 409 int preamble_type; /* 0 - long, 1 - short, 2 - auto */ 410 int auth_mode; /* authentication type: 0 open, 1 shared key */ 411 int txrate; /* 0,1,2,3 = 1,2,5.5,11 Mbps, 4 is auto */ 412 int frag_threshold; /* threshold for fragmentation of tx packets */ 413 int rts_threshold; /* threshold for RTS mechanism */ 414 int short_retry_limit; 415 416 int scan_min_time; /* scan min channel time */ 417 int scan_max_time; /* scan max channel time */ 418 int scan_mode; /* SCAN_TYPE_ACTIVE, SCAN_TYPE_PASSIVE */ 419 int scan_need_any; /* if set, need to scan for any ESSID */ 420 421 u16 assoc_id; /* current association ID, if associated */ 422 423 u8 pm_mode; /* power management mode */ 424 u32 pm_period; /* power management period in microseconds */ 425 426 struct reg_domain const *domain; /* reg domain description */ 427 428 /* These fields contain HW config provided by the device (not all of 429 * these fields are used by all board types) */ 430 u8 mac_addr[ETH_ALEN]; 431 u8 regulatory_domain; 432 433 struct at76_card_config card_config; 434 435 enum board_type board_type; 436 struct mib_fw_version fw_version; 437 438 unsigned int device_unplugged:1; 439 unsigned int netdev_registered:1; 440 struct set_mib_buffer mib_buf; /* global buffer for set_mib calls */ 441 442 int beacon_period; /* period of mgmt beacons, Kus */ 443 444 struct ieee80211_hw *hw; 445 int mac80211_registered; 446}; 447 448#define AT76_SUPPORTED_FILTERS FIF_PROMISC_IN_BSS 449 450#define SCAN_POLL_INTERVAL (HZ / 4) 451 452#define CMD_COMPLETION_TIMEOUT (5 * HZ) 453 454#define DEF_RTS_THRESHOLD 1536 455#define DEF_FRAG_THRESHOLD 1536 456#define DEF_SHORT_RETRY_LIMIT 8 457#define DEF_CHANNEL 10 458#define DEF_SCAN_MIN_TIME 10 459#define DEF_SCAN_MAX_TIME 120 460 461/* the max padding size for tx in bytes (see calc_padding) */ 462#define MAX_PADDING_SIZE 53 463 464#endif /* _AT76_USB_H */ 465