1 /* 2 * This file is part of wl1271 3 * 4 * Copyright (C) 1998-2009 Texas Instruments. All rights reserved. 5 * Copyright (C) 2008-2009 Nokia Corporation 6 * 7 * Contact: Luciano Coelho <luciano.coelho@nokia.com> 8 * 9 * This program is free software; you can redistribute it and/or 10 * modify it under the terms of the GNU General Public License 11 * version 2 as published by the Free Software Foundation. 12 * 13 * This program is distributed in the hope that it will be useful, but 14 * WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 16 * General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the Free Software 20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 21 * 02110-1301 USA 22 * 23 */ 24 25 #ifndef __WLCORE_I_H__ 26 #define __WLCORE_I_H__ 27 28 #include <linux/mutex.h> 29 #include <linux/completion.h> 30 #include <linux/spinlock.h> 31 #include <linux/list.h> 32 #include <linux/bitops.h> 33 #include <net/mac80211.h> 34 35 #include "conf.h" 36 #include "ini.h" 37 38 /* 39 * wl127x and wl128x are using the same NVS file name. However, the 40 * ini parameters between them are different. The driver validates 41 * the correct NVS size in wl1271_boot_upload_nvs(). 42 */ 43 #define WL12XX_NVS_NAME "ti-connectivity/wl1271-nvs.bin" 44 45 #define WL1271_TX_SECURITY_LO16(s) ((u16)((s) & 0xffff)) 46 #define WL1271_TX_SECURITY_HI32(s) ((u32)(((s) >> 16) & 0xffffffff)) 47 #define WL1271_TX_SQN_POST_RECOVERY_PADDING 0xff 48 /* Use smaller padding for GEM, as some APs have issues when it's too big */ 49 #define WL1271_TX_SQN_POST_RECOVERY_PADDING_GEM 0x20 50 51 52 #define WL1271_CIPHER_SUITE_GEM 0x00147201 53 54 #define WL1271_BUSY_WORD_CNT 1 55 #define WL1271_BUSY_WORD_LEN (WL1271_BUSY_WORD_CNT * sizeof(u32)) 56 57 #define WL1271_ELP_HW_STATE_ASLEEP 0 58 #define WL1271_ELP_HW_STATE_IRQ 1 59 60 #define WL1271_DEFAULT_BEACON_INT 100 61 #define WL1271_DEFAULT_DTIM_PERIOD 1 62 63 #define WL12XX_MAX_ROLES 4 64 #define WL12XX_INVALID_ROLE_ID 0xff 65 #define WL12XX_INVALID_LINK_ID 0xff 66 67 /* 68 * max number of links allowed by all HWs. 69 * this is NOT the actual max links supported by the current hw. 70 */ 71 #define WLCORE_MAX_LINKS 16 72 73 /* the driver supports the 2.4Ghz and 5Ghz bands */ 74 #define WLCORE_NUM_BANDS 2 75 76 #define WL12XX_MAX_RATE_POLICIES 16 77 #define WLCORE_MAX_KLV_TEMPLATES 4 78 79 /* Defined by FW as 0. Will not be freed or allocated. */ 80 #define WL12XX_SYSTEM_HLID 0 81 82 /* 83 * When in AP-mode, we allow (at least) this number of packets 84 * to be transmitted to FW for a STA in PS-mode. Only when packets are 85 * present in the FW buffers it will wake the sleeping STA. We want to put 86 * enough packets for the driver to transmit all of its buffered data before 87 * the STA goes to sleep again. But we don't want to take too much memory 88 * as it might hurt the throughput of active STAs. 89 */ 90 #define WL1271_PS_STA_MAX_PACKETS 2 91 92 #define WL1271_AP_BSS_INDEX 0 93 #define WL1271_AP_DEF_BEACON_EXP 20 94 95 enum wlcore_state { 96 WLCORE_STATE_OFF, 97 WLCORE_STATE_RESTARTING, 98 WLCORE_STATE_ON, 99 }; 100 101 enum wl12xx_fw_type { 102 WL12XX_FW_TYPE_NONE, 103 WL12XX_FW_TYPE_NORMAL, 104 WL12XX_FW_TYPE_MULTI, 105 WL12XX_FW_TYPE_PLT, 106 }; 107 108 struct wl1271; 109 110 enum { 111 FW_VER_CHIP, 112 FW_VER_IF_TYPE, 113 FW_VER_MAJOR, 114 FW_VER_SUBTYPE, 115 FW_VER_MINOR, 116 117 NUM_FW_VER 118 }; 119 120 struct wl1271_chip { 121 u32 id; 122 char fw_ver_str[ETHTOOL_FWVERS_LEN]; 123 unsigned int fw_ver[NUM_FW_VER]; 124 char phy_fw_ver_str[ETHTOOL_FWVERS_LEN]; 125 }; 126 127 #define NUM_TX_QUEUES 4 128 129 struct wl_fw_status { 130 u32 intr; 131 u8 fw_rx_counter; 132 u8 drv_rx_counter; 133 u8 tx_results_counter; 134 __le32 *rx_pkt_descs; 135 136 u32 fw_localtime; 137 138 /* 139 * A bitmap (where each bit represents a single HLID) 140 * to indicate if the station is in PS mode. 141 */ 142 u32 link_ps_bitmap; 143 144 /* 145 * A bitmap (where each bit represents a single HLID) to indicate 146 * if the station is in Fast mode 147 */ 148 u32 link_fast_bitmap; 149 150 /* Cumulative counter of total released mem blocks since FW-reset */ 151 u32 total_released_blks; 152 153 /* Size (in Memory Blocks) of TX pool */ 154 u32 tx_total; 155 156 struct { 157 /* 158 * Cumulative counter of released packets per AC 159 * (length of the array is NUM_TX_QUEUES) 160 */ 161 u8 *tx_released_pkts; 162 163 /* 164 * Cumulative counter of freed packets per HLID 165 * (length of the array is wl->num_links) 166 */ 167 u8 *tx_lnk_free_pkts; 168 169 /* Cumulative counter of released Voice memory blocks */ 170 u8 tx_voice_released_blks; 171 172 /* Tx rate of the last transmitted packet */ 173 u8 tx_last_rate; 174 } counters; 175 176 u32 log_start_addr; 177 178 /* Private status to be used by the lower drivers */ 179 void *priv; 180 }; 181 182 #define WL1271_MAX_CHANNELS 64 183 struct wl1271_scan { 184 struct cfg80211_scan_request *req; 185 unsigned long scanned_ch[BITS_TO_LONGS(WL1271_MAX_CHANNELS)]; 186 bool failed; 187 u8 state; 188 u8 ssid[IEEE80211_MAX_SSID_LEN+1]; 189 size_t ssid_len; 190 }; 191 192 struct wl1271_if_operations { 193 int __must_check (*read)(struct device *child, int addr, void *buf, 194 size_t len, bool fixed); 195 int __must_check (*write)(struct device *child, int addr, void *buf, 196 size_t len, bool fixed); 197 void (*reset)(struct device *child); 198 void (*init)(struct device *child); 199 int (*power)(struct device *child, bool enable); 200 void (*set_block_size) (struct device *child, unsigned int blksz); 201 }; 202 203 struct wlcore_platdev_data { 204 struct wl1271_if_operations *if_ops; 205 206 bool ref_clock_xtal; /* specify whether the clock is XTAL or not */ 207 u32 ref_clock_freq; /* in Hertz */ 208 u32 tcxo_clock_freq; /* in Hertz, tcxo is always XTAL */ 209 bool pwr_in_suspend; 210 }; 211 212 #define MAX_NUM_KEYS 14 213 #define MAX_KEY_SIZE 32 214 215 struct wl1271_ap_key { 216 u8 id; 217 u8 key_type; 218 u8 key_size; 219 u8 key[MAX_KEY_SIZE]; 220 u8 hlid; 221 u32 tx_seq_32; 222 u16 tx_seq_16; 223 }; 224 225 enum wl12xx_flags { 226 WL1271_FLAG_GPIO_POWER, 227 WL1271_FLAG_TX_QUEUE_STOPPED, 228 WL1271_FLAG_TX_PENDING, 229 WL1271_FLAG_IN_ELP, 230 WL1271_FLAG_ELP_REQUESTED, 231 WL1271_FLAG_IRQ_RUNNING, 232 WL1271_FLAG_FW_TX_BUSY, 233 WL1271_FLAG_DUMMY_PACKET_PENDING, 234 WL1271_FLAG_SUSPENDED, 235 WL1271_FLAG_PENDING_WORK, 236 WL1271_FLAG_SOFT_GEMINI, 237 WL1271_FLAG_RECOVERY_IN_PROGRESS, 238 WL1271_FLAG_VIF_CHANGE_IN_PROGRESS, 239 WL1271_FLAG_INTENDED_FW_RECOVERY, 240 WL1271_FLAG_IO_FAILED, 241 WL1271_FLAG_REINIT_TX_WDOG, 242 }; 243 244 enum wl12xx_vif_flags { 245 WLVIF_FLAG_INITIALIZED, 246 WLVIF_FLAG_STA_ASSOCIATED, 247 WLVIF_FLAG_STA_AUTHORIZED, 248 WLVIF_FLAG_IBSS_JOINED, 249 WLVIF_FLAG_AP_STARTED, 250 WLVIF_FLAG_IN_PS, 251 WLVIF_FLAG_STA_STATE_SENT, 252 WLVIF_FLAG_RX_STREAMING_STARTED, 253 WLVIF_FLAG_PSPOLL_FAILURE, 254 WLVIF_FLAG_CS_PROGRESS, 255 WLVIF_FLAG_AP_PROBE_RESP_SET, 256 WLVIF_FLAG_IN_USE, 257 WLVIF_FLAG_ACTIVE, 258 WLVIF_FLAG_BEACON_DISABLED, 259 }; 260 261 struct wl12xx_vif; 262 263 struct wl1271_link { 264 /* AP-mode - TX queue per AC in link */ 265 struct sk_buff_head tx_queue[NUM_TX_QUEUES]; 266 267 /* accounting for allocated / freed packets in FW */ 268 u8 allocated_pkts; 269 u8 prev_freed_pkts; 270 271 u8 addr[ETH_ALEN]; 272 273 /* bitmap of TIDs where RX BA sessions are active for this link */ 274 u8 ba_bitmap; 275 276 /* The wlvif this link belongs to. Might be null for global links */ 277 struct wl12xx_vif *wlvif; 278 279 /* 280 * total freed FW packets on the link - used for tracking the 281 * AES/TKIP PN across recoveries. Re-initialized each time 282 * from the wl1271_station structure. 283 */ 284 u64 total_freed_pkts; 285 }; 286 287 #define WL1271_MAX_RX_FILTERS 5 288 #define WL1271_RX_FILTER_MAX_FIELDS 8 289 290 #define WL1271_RX_FILTER_ETH_HEADER_SIZE 14 291 #define WL1271_RX_FILTER_MAX_FIELDS_SIZE 95 292 #define RX_FILTER_FIELD_OVERHEAD \ 293 (sizeof(struct wl12xx_rx_filter_field) - sizeof(u8 *)) 294 #define WL1271_RX_FILTER_MAX_PATTERN_SIZE \ 295 (WL1271_RX_FILTER_MAX_FIELDS_SIZE - RX_FILTER_FIELD_OVERHEAD) 296 297 #define WL1271_RX_FILTER_FLAG_MASK BIT(0) 298 #define WL1271_RX_FILTER_FLAG_IP_HEADER 0 299 #define WL1271_RX_FILTER_FLAG_ETHERNET_HEADER BIT(1) 300 301 enum rx_filter_action { 302 FILTER_DROP = 0, 303 FILTER_SIGNAL = 1, 304 FILTER_FW_HANDLE = 2 305 }; 306 307 enum plt_mode { 308 PLT_OFF = 0, 309 PLT_ON = 1, 310 PLT_FEM_DETECT = 2, 311 PLT_CHIP_AWAKE = 3 312 }; 313 314 struct wl12xx_rx_filter_field { 315 __le16 offset; 316 u8 len; 317 u8 flags; 318 u8 *pattern; 319 } __packed; 320 321 struct wl12xx_rx_filter { 322 u8 action; 323 int num_fields; 324 struct wl12xx_rx_filter_field fields[WL1271_RX_FILTER_MAX_FIELDS]; 325 }; 326 327 struct wl1271_station { 328 u8 hlid; 329 bool in_connection; 330 331 /* 332 * total freed FW packets on the link to the STA - used for tracking the 333 * AES/TKIP PN across recoveries. Re-initialized each time from the 334 * wl1271_station structure. 335 * Used in both AP and STA mode. 336 */ 337 u64 total_freed_pkts; 338 }; 339 340 struct wl12xx_vif { 341 struct wl1271 *wl; 342 struct list_head list; 343 unsigned long flags; 344 u8 bss_type; 345 u8 p2p; /* we are using p2p role */ 346 u8 role_id; 347 348 /* sta/ibss specific */ 349 u8 dev_role_id; 350 u8 dev_hlid; 351 352 union { 353 struct { 354 u8 hlid; 355 356 u8 basic_rate_idx; 357 u8 ap_rate_idx; 358 u8 p2p_rate_idx; 359 360 u8 klv_template_id; 361 362 bool qos; 363 /* channel type we started the STA role with */ 364 enum nl80211_channel_type role_chan_type; 365 } sta; 366 struct { 367 u8 global_hlid; 368 u8 bcast_hlid; 369 370 /* HLIDs bitmap of associated stations */ 371 unsigned long sta_hlid_map[BITS_TO_LONGS( 372 WLCORE_MAX_LINKS)]; 373 374 /* recoreded keys - set here before AP startup */ 375 struct wl1271_ap_key *recorded_keys[MAX_NUM_KEYS]; 376 377 u8 mgmt_rate_idx; 378 u8 bcast_rate_idx; 379 u8 ucast_rate_idx[CONF_TX_MAX_AC_COUNT]; 380 } ap; 381 }; 382 383 /* the hlid of the last transmitted skb */ 384 int last_tx_hlid; 385 386 /* counters of packets per AC, across all links in the vif */ 387 int tx_queue_count[NUM_TX_QUEUES]; 388 389 unsigned long links_map[BITS_TO_LONGS(WLCORE_MAX_LINKS)]; 390 391 u8 ssid[IEEE80211_MAX_SSID_LEN + 1]; 392 u8 ssid_len; 393 394 /* The current band */ 395 enum nl80211_band band; 396 int channel; 397 enum nl80211_channel_type channel_type; 398 399 u32 bitrate_masks[WLCORE_NUM_BANDS]; 400 u32 basic_rate_set; 401 402 /* 403 * currently configured rate set: 404 * bits 0-15 - 802.11abg rates 405 * bits 16-23 - 802.11n MCS index mask 406 * support only 1 stream, thus only 8 bits for the MCS rates (0-7). 407 */ 408 u32 basic_rate; 409 u32 rate_set; 410 411 /* probe-req template for the current AP */ 412 struct sk_buff *probereq; 413 414 /* Beaconing interval (needed for ad-hoc) */ 415 u32 beacon_int; 416 417 /* Default key (for WEP) */ 418 u32 default_key; 419 420 /* Our association ID */ 421 u16 aid; 422 423 /* retry counter for PSM entries */ 424 u8 psm_entry_retry; 425 426 /* in dBm */ 427 int power_level; 428 429 int rssi_thold; 430 int last_rssi_event; 431 432 /* save the current encryption type for auto-arp config */ 433 u8 encryption_type; 434 __be32 ip_addr; 435 436 /* RX BA constraint value */ 437 bool ba_support; 438 bool ba_allowed; 439 440 bool wmm_enabled; 441 442 bool radar_enabled; 443 444 /* Rx Streaming */ 445 struct work_struct rx_streaming_enable_work; 446 struct work_struct rx_streaming_disable_work; 447 struct timer_list rx_streaming_timer; 448 449 struct delayed_work channel_switch_work; 450 struct delayed_work connection_loss_work; 451 452 /* number of in connection stations */ 453 int inconn_count; 454 455 /* 456 * This vif's queues are mapped to mac80211 HW queues as: 457 * VO - hw_queue_base 458 * VI - hw_queue_base + 1 459 * BE - hw_queue_base + 2 460 * BK - hw_queue_base + 3 461 */ 462 int hw_queue_base; 463 464 /* do we have a pending auth reply? (and ROC) */ 465 bool ap_pending_auth_reply; 466 467 /* time when we sent the pending auth reply */ 468 unsigned long pending_auth_reply_time; 469 470 /* work for canceling ROC after pending auth reply */ 471 struct delayed_work pending_auth_complete_work; 472 473 /* update rate conrol */ 474 enum ieee80211_sta_rx_bandwidth rc_update_bw; 475 struct work_struct rc_update_work; 476 477 /* 478 * total freed FW packets on the link. 479 * For STA this holds the PN of the link to the AP. 480 * For AP this holds the PN of the broadcast link. 481 */ 482 u64 total_freed_pkts; 483 484 /* 485 * This struct must be last! 486 * data that has to be saved acrossed reconfigs (e.g. recovery) 487 * should be declared in this struct. 488 */ 489 struct { 490 u8 persistent[0]; 491 }; 492 }; 493 494 static inline struct wl12xx_vif *wl12xx_vif_to_data(struct ieee80211_vif *vif) 495 { 496 WARN_ON(!vif); 497 return (struct wl12xx_vif *)vif->drv_priv; 498 } 499 500 static inline 501 struct ieee80211_vif *wl12xx_wlvif_to_vif(struct wl12xx_vif *wlvif) 502 { 503 return container_of((void *)wlvif, struct ieee80211_vif, drv_priv); 504 } 505 506 static inline bool wlcore_is_p2p_mgmt(struct wl12xx_vif *wlvif) 507 { 508 return wl12xx_wlvif_to_vif(wlvif)->type == NL80211_IFTYPE_P2P_DEVICE; 509 } 510 511 #define wl12xx_for_each_wlvif(wl, wlvif) \ 512 list_for_each_entry(wlvif, &wl->wlvif_list, list) 513 514 #define wl12xx_for_each_wlvif_continue(wl, wlvif) \ 515 list_for_each_entry_continue(wlvif, &wl->wlvif_list, list) 516 517 #define wl12xx_for_each_wlvif_bss_type(wl, wlvif, _bss_type) \ 518 wl12xx_for_each_wlvif(wl, wlvif) \ 519 if (wlvif->bss_type == _bss_type) 520 521 #define wl12xx_for_each_wlvif_sta(wl, wlvif) \ 522 wl12xx_for_each_wlvif_bss_type(wl, wlvif, BSS_TYPE_STA_BSS) 523 524 #define wl12xx_for_each_wlvif_ap(wl, wlvif) \ 525 wl12xx_for_each_wlvif_bss_type(wl, wlvif, BSS_TYPE_AP_BSS) 526 527 int wl1271_plt_start(struct wl1271 *wl, const enum plt_mode plt_mode); 528 int wl1271_plt_stop(struct wl1271 *wl); 529 int wl1271_recalc_rx_streaming(struct wl1271 *wl, struct wl12xx_vif *wlvif); 530 void wl12xx_queue_recovery_work(struct wl1271 *wl); 531 size_t wl12xx_copy_fwlog(struct wl1271 *wl, u8 *memblock, size_t maxlen); 532 int wl1271_rx_filter_alloc_field(struct wl12xx_rx_filter *filter, 533 u16 offset, u8 flags, 534 const u8 *pattern, u8 len); 535 void wl1271_rx_filter_free(struct wl12xx_rx_filter *filter); 536 struct wl12xx_rx_filter *wl1271_rx_filter_alloc(void); 537 int wl1271_rx_filter_get_fields_size(struct wl12xx_rx_filter *filter); 538 void wl1271_rx_filter_flatten_fields(struct wl12xx_rx_filter *filter, 539 u8 *buf); 540 541 #define JOIN_TIMEOUT 5000 /* 5000 milliseconds to join */ 542 543 #define SESSION_COUNTER_MAX 6 /* maximum value for the session counter */ 544 #define SESSION_COUNTER_INVALID 7 /* used with dummy_packet */ 545 546 #define WL1271_DEFAULT_POWER_LEVEL 0 547 548 #define WL1271_TX_QUEUE_LOW_WATERMARK 32 549 #define WL1271_TX_QUEUE_HIGH_WATERMARK 256 550 551 #define WL1271_DEFERRED_QUEUE_LIMIT 64 552 553 /* WL1271 needs a 200ms sleep after power on, and a 20ms sleep before power 554 on in case is has been shut down shortly before */ 555 #define WL1271_PRE_POWER_ON_SLEEP 20 /* in milliseconds */ 556 #define WL1271_POWER_ON_SLEEP 200 /* in milliseconds */ 557 558 /* Macros to handle wl1271.sta_rate_set */ 559 #define HW_BG_RATES_MASK 0xffff 560 #define HW_HT_RATES_OFFSET 16 561 #define HW_MIMO_RATES_OFFSET 24 562 563 #endif /* __WLCORE_I_H__ */ 564