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 95enum wlcore_state { 96 WLCORE_STATE_OFF, 97 WLCORE_STATE_RESTARTING, 98 WLCORE_STATE_ON, 99}; 100 101enum 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 108struct wl1271; 109 110enum { 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 120struct 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 129struct 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 183struct 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 192struct 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 203struct wlcore_platdev_data { 204 struct wl12xx_platform_data *pdata; 205 struct wl1271_if_operations *if_ops; 206}; 207 208#define MAX_NUM_KEYS 14 209#define MAX_KEY_SIZE 32 210 211struct wl1271_ap_key { 212 u8 id; 213 u8 key_type; 214 u8 key_size; 215 u8 key[MAX_KEY_SIZE]; 216 u8 hlid; 217 u32 tx_seq_32; 218 u16 tx_seq_16; 219}; 220 221enum wl12xx_flags { 222 WL1271_FLAG_GPIO_POWER, 223 WL1271_FLAG_TX_QUEUE_STOPPED, 224 WL1271_FLAG_TX_PENDING, 225 WL1271_FLAG_IN_ELP, 226 WL1271_FLAG_ELP_REQUESTED, 227 WL1271_FLAG_IRQ_RUNNING, 228 WL1271_FLAG_FW_TX_BUSY, 229 WL1271_FLAG_DUMMY_PACKET_PENDING, 230 WL1271_FLAG_SUSPENDED, 231 WL1271_FLAG_PENDING_WORK, 232 WL1271_FLAG_SOFT_GEMINI, 233 WL1271_FLAG_RECOVERY_IN_PROGRESS, 234 WL1271_FLAG_VIF_CHANGE_IN_PROGRESS, 235 WL1271_FLAG_INTENDED_FW_RECOVERY, 236 WL1271_FLAG_IO_FAILED, 237 WL1271_FLAG_REINIT_TX_WDOG, 238}; 239 240enum wl12xx_vif_flags { 241 WLVIF_FLAG_INITIALIZED, 242 WLVIF_FLAG_STA_ASSOCIATED, 243 WLVIF_FLAG_STA_AUTHORIZED, 244 WLVIF_FLAG_IBSS_JOINED, 245 WLVIF_FLAG_AP_STARTED, 246 WLVIF_FLAG_IN_PS, 247 WLVIF_FLAG_STA_STATE_SENT, 248 WLVIF_FLAG_RX_STREAMING_STARTED, 249 WLVIF_FLAG_PSPOLL_FAILURE, 250 WLVIF_FLAG_CS_PROGRESS, 251 WLVIF_FLAG_AP_PROBE_RESP_SET, 252 WLVIF_FLAG_IN_USE, 253 WLVIF_FLAG_ACTIVE, 254}; 255 256struct wl12xx_vif; 257 258struct wl1271_link { 259 /* AP-mode - TX queue per AC in link */ 260 struct sk_buff_head tx_queue[NUM_TX_QUEUES]; 261 262 /* accounting for allocated / freed packets in FW */ 263 u8 allocated_pkts; 264 u8 prev_freed_pkts; 265 266 u8 addr[ETH_ALEN]; 267 268 /* bitmap of TIDs where RX BA sessions are active for this link */ 269 u8 ba_bitmap; 270 271 /* The wlvif this link belongs to. Might be null for global links */ 272 struct wl12xx_vif *wlvif; 273 274 /* 275 * total freed FW packets on the link - used for tracking the 276 * AES/TKIP PN across recoveries. Re-initialized each time 277 * from the wl1271_station structure. 278 */ 279 u64 total_freed_pkts; 280}; 281 282#define WL1271_MAX_RX_FILTERS 5 283#define WL1271_RX_FILTER_MAX_FIELDS 8 284 285#define WL1271_RX_FILTER_ETH_HEADER_SIZE 14 286#define WL1271_RX_FILTER_MAX_FIELDS_SIZE 95 287#define RX_FILTER_FIELD_OVERHEAD \ 288 (sizeof(struct wl12xx_rx_filter_field) - sizeof(u8 *)) 289#define WL1271_RX_FILTER_MAX_PATTERN_SIZE \ 290 (WL1271_RX_FILTER_MAX_FIELDS_SIZE - RX_FILTER_FIELD_OVERHEAD) 291 292#define WL1271_RX_FILTER_FLAG_MASK BIT(0) 293#define WL1271_RX_FILTER_FLAG_IP_HEADER 0 294#define WL1271_RX_FILTER_FLAG_ETHERNET_HEADER BIT(1) 295 296enum rx_filter_action { 297 FILTER_DROP = 0, 298 FILTER_SIGNAL = 1, 299 FILTER_FW_HANDLE = 2 300}; 301 302enum plt_mode { 303 PLT_OFF = 0, 304 PLT_ON = 1, 305 PLT_FEM_DETECT = 2, 306 PLT_CHIP_AWAKE = 3 307}; 308 309struct wl12xx_rx_filter_field { 310 __le16 offset; 311 u8 len; 312 u8 flags; 313 u8 *pattern; 314} __packed; 315 316struct wl12xx_rx_filter { 317 u8 action; 318 int num_fields; 319 struct wl12xx_rx_filter_field fields[WL1271_RX_FILTER_MAX_FIELDS]; 320}; 321 322struct wl1271_station { 323 u8 hlid; 324 bool in_connection; 325 326 /* 327 * total freed FW packets on the link to the STA - used for tracking the 328 * AES/TKIP PN across recoveries. Re-initialized each time from the 329 * wl1271_station structure. 330 * Used in both AP and STA mode. 331 */ 332 u64 total_freed_pkts; 333}; 334 335struct wl12xx_vif { 336 struct wl1271 *wl; 337 struct list_head list; 338 unsigned long flags; 339 u8 bss_type; 340 u8 p2p; /* we are using p2p role */ 341 u8 role_id; 342 343 /* sta/ibss specific */ 344 u8 dev_role_id; 345 u8 dev_hlid; 346 347 union { 348 struct { 349 u8 hlid; 350 351 u8 basic_rate_idx; 352 u8 ap_rate_idx; 353 u8 p2p_rate_idx; 354 355 u8 klv_template_id; 356 357 bool qos; 358 /* channel type we started the STA role with */ 359 enum nl80211_channel_type role_chan_type; 360 } sta; 361 struct { 362 u8 global_hlid; 363 u8 bcast_hlid; 364 365 /* HLIDs bitmap of associated stations */ 366 unsigned long sta_hlid_map[BITS_TO_LONGS( 367 WLCORE_MAX_LINKS)]; 368 369 /* recoreded keys - set here before AP startup */ 370 struct wl1271_ap_key *recorded_keys[MAX_NUM_KEYS]; 371 372 u8 mgmt_rate_idx; 373 u8 bcast_rate_idx; 374 u8 ucast_rate_idx[CONF_TX_MAX_AC_COUNT]; 375 } ap; 376 }; 377 378 /* the hlid of the last transmitted skb */ 379 int last_tx_hlid; 380 381 /* counters of packets per AC, across all links in the vif */ 382 int tx_queue_count[NUM_TX_QUEUES]; 383 384 unsigned long links_map[BITS_TO_LONGS(WLCORE_MAX_LINKS)]; 385 386 u8 ssid[IEEE80211_MAX_SSID_LEN + 1]; 387 u8 ssid_len; 388 389 /* The current band */ 390 enum ieee80211_band band; 391 int channel; 392 enum nl80211_channel_type channel_type; 393 394 u32 bitrate_masks[WLCORE_NUM_BANDS]; 395 u32 basic_rate_set; 396 397 /* 398 * currently configured rate set: 399 * bits 0-15 - 802.11abg rates 400 * bits 16-23 - 802.11n MCS index mask 401 * support only 1 stream, thus only 8 bits for the MCS rates (0-7). 402 */ 403 u32 basic_rate; 404 u32 rate_set; 405 406 /* probe-req template for the current AP */ 407 struct sk_buff *probereq; 408 409 /* Beaconing interval (needed for ad-hoc) */ 410 u32 beacon_int; 411 412 /* Default key (for WEP) */ 413 u32 default_key; 414 415 /* Our association ID */ 416 u16 aid; 417 418 /* retry counter for PSM entries */ 419 u8 psm_entry_retry; 420 421 /* in dBm */ 422 int power_level; 423 424 int rssi_thold; 425 int last_rssi_event; 426 427 /* save the current encryption type for auto-arp config */ 428 u8 encryption_type; 429 __be32 ip_addr; 430 431 /* RX BA constraint value */ 432 bool ba_support; 433 bool ba_allowed; 434 435 bool wmm_enabled; 436 437 /* Rx Streaming */ 438 struct work_struct rx_streaming_enable_work; 439 struct work_struct rx_streaming_disable_work; 440 struct timer_list rx_streaming_timer; 441 442 struct delayed_work channel_switch_work; 443 struct delayed_work connection_loss_work; 444 445 /* number of in connection stations */ 446 int inconn_count; 447 448 /* 449 * This vif's queues are mapped to mac80211 HW queues as: 450 * VO - hw_queue_base 451 * VI - hw_queue_base + 1 452 * BE - hw_queue_base + 2 453 * BK - hw_queue_base + 3 454 */ 455 int hw_queue_base; 456 457 /* do we have a pending auth reply? (and ROC) */ 458 bool ap_pending_auth_reply; 459 460 /* time when we sent the pending auth reply */ 461 unsigned long pending_auth_reply_time; 462 463 /* work for canceling ROC after pending auth reply */ 464 struct delayed_work pending_auth_complete_work; 465 466 /* 467 * total freed FW packets on the link. 468 * For STA this holds the PN of the link to the AP. 469 * For AP this holds the PN of the broadcast link. 470 */ 471 u64 total_freed_pkts; 472 473 /* 474 * This struct must be last! 475 * data that has to be saved acrossed reconfigs (e.g. recovery) 476 * should be declared in this struct. 477 */ 478 struct { 479 u8 persistent[0]; 480 }; 481}; 482 483static inline struct wl12xx_vif *wl12xx_vif_to_data(struct ieee80211_vif *vif) 484{ 485 WARN_ON(!vif); 486 return (struct wl12xx_vif *)vif->drv_priv; 487} 488 489static inline 490struct ieee80211_vif *wl12xx_wlvif_to_vif(struct wl12xx_vif *wlvif) 491{ 492 return container_of((void *)wlvif, struct ieee80211_vif, drv_priv); 493} 494 495#define wl12xx_for_each_wlvif(wl, wlvif) \ 496 list_for_each_entry(wlvif, &wl->wlvif_list, list) 497 498#define wl12xx_for_each_wlvif_continue(wl, wlvif) \ 499 list_for_each_entry_continue(wlvif, &wl->wlvif_list, list) 500 501#define wl12xx_for_each_wlvif_bss_type(wl, wlvif, _bss_type) \ 502 wl12xx_for_each_wlvif(wl, wlvif) \ 503 if (wlvif->bss_type == _bss_type) 504 505#define wl12xx_for_each_wlvif_sta(wl, wlvif) \ 506 wl12xx_for_each_wlvif_bss_type(wl, wlvif, BSS_TYPE_STA_BSS) 507 508#define wl12xx_for_each_wlvif_ap(wl, wlvif) \ 509 wl12xx_for_each_wlvif_bss_type(wl, wlvif, BSS_TYPE_AP_BSS) 510 511int wl1271_plt_start(struct wl1271 *wl, const enum plt_mode plt_mode); 512int wl1271_plt_stop(struct wl1271 *wl); 513int wl1271_recalc_rx_streaming(struct wl1271 *wl, struct wl12xx_vif *wlvif); 514void wl12xx_queue_recovery_work(struct wl1271 *wl); 515size_t wl12xx_copy_fwlog(struct wl1271 *wl, u8 *memblock, size_t maxlen); 516int wl1271_rx_filter_alloc_field(struct wl12xx_rx_filter *filter, 517 u16 offset, u8 flags, 518 const u8 *pattern, u8 len); 519void wl1271_rx_filter_free(struct wl12xx_rx_filter *filter); 520struct wl12xx_rx_filter *wl1271_rx_filter_alloc(void); 521int wl1271_rx_filter_get_fields_size(struct wl12xx_rx_filter *filter); 522void wl1271_rx_filter_flatten_fields(struct wl12xx_rx_filter *filter, 523 u8 *buf); 524 525#define JOIN_TIMEOUT 5000 /* 5000 milliseconds to join */ 526 527#define SESSION_COUNTER_MAX 6 /* maximum value for the session counter */ 528#define SESSION_COUNTER_INVALID 7 /* used with dummy_packet */ 529 530#define WL1271_DEFAULT_POWER_LEVEL 0 531 532#define WL1271_TX_QUEUE_LOW_WATERMARK 32 533#define WL1271_TX_QUEUE_HIGH_WATERMARK 256 534 535#define WL1271_DEFERRED_QUEUE_LIMIT 64 536 537/* WL1271 needs a 200ms sleep after power on, and a 20ms sleep before power 538 on in case is has been shut down shortly before */ 539#define WL1271_PRE_POWER_ON_SLEEP 20 /* in milliseconds */ 540#define WL1271_POWER_ON_SLEEP 200 /* in milliseconds */ 541 542/* Macros to handle wl1271.sta_rate_set */ 543#define HW_BG_RATES_MASK 0xffff 544#define HW_HT_RATES_OFFSET 16 545#define HW_MIMO_RATES_OFFSET 24 546 547#endif /* __WLCORE_I_H__ */ 548