Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 1 | /****************************************************************************** |
| 2 | * |
| 3 | * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved. |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of version 2 of the GNU General Public License as |
| 7 | * published by the Free Software Foundation. |
| 8 | * |
| 9 | * This program is distributed in the hope that it will be useful, but WITHOUT |
| 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 12 | * more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU General Public License along with |
| 15 | * this program; if not, write to the Free Software Foundation, Inc., |
| 16 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA |
| 17 | * |
| 18 | * The full GNU General Public License is included in this distribution in the |
| 19 | * file called LICENSE. |
| 20 | * |
| 21 | * Contact Information: |
| 22 | * Intel Linux Wireless <ilw@linux.intel.com> |
| 23 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
| 24 | * |
| 25 | *****************************************************************************/ |
| 26 | /* |
| 27 | * Please use this file (iwl-dev.h) for driver implementation definitions. |
| 28 | * Please use iwl-commands.h for uCode API definitions. |
| 29 | * Please use iwl-4965-hw.h for hardware-related definitions. |
| 30 | */ |
| 31 | |
| 32 | #ifndef __iwl_legacy_dev_h__ |
| 33 | #define __iwl_legacy_dev_h__ |
| 34 | |
| 35 | #include <linux/pci.h> /* for struct pci_device_id */ |
| 36 | #include <linux/kernel.h> |
| 37 | #include <linux/leds.h> |
| 38 | #include <linux/wait.h> |
| 39 | #include <net/ieee80211_radiotap.h> |
| 40 | |
| 41 | #include "iwl-eeprom.h" |
| 42 | #include "iwl-csr.h" |
| 43 | #include "iwl-prph.h" |
| 44 | #include "iwl-fh.h" |
| 45 | #include "iwl-debug.h" |
| 46 | #include "iwl-4965-hw.h" |
| 47 | #include "iwl-3945-hw.h" |
| 48 | #include "iwl-led.h" |
| 49 | #include "iwl-power.h" |
| 50 | #include "iwl-legacy-rs.h" |
| 51 | |
| 52 | struct iwl_tx_queue; |
| 53 | |
| 54 | /* CT-KILL constants */ |
| 55 | #define CT_KILL_THRESHOLD_LEGACY 110 /* in Celsius */ |
| 56 | |
| 57 | /* Default noise level to report when noise measurement is not available. |
| 58 | * This may be because we're: |
| 59 | * 1) Not associated (4965, no beacon statistics being sent to driver) |
| 60 | * 2) Scanning (noise measurement does not apply to associated channel) |
| 61 | * 3) Receiving CCK (3945 delivers noise info only for OFDM frames) |
| 62 | * Use default noise value of -127 ... this is below the range of measurable |
| 63 | * Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user. |
| 64 | * Also, -127 works better than 0 when averaging frames with/without |
| 65 | * noise info (e.g. averaging might be done in app); measured dBm values are |
| 66 | * always negative ... using a negative value as the default keeps all |
| 67 | * averages within an s8's (used in some apps) range of negative values. */ |
| 68 | #define IWL_NOISE_MEAS_NOT_AVAILABLE (-127) |
| 69 | |
| 70 | /* |
| 71 | * RTS threshold here is total size [2347] minus 4 FCS bytes |
| 72 | * Per spec: |
| 73 | * a value of 0 means RTS on all data/management packets |
| 74 | * a value > max MSDU size means no RTS |
| 75 | * else RTS for data/management frames where MPDU is larger |
| 76 | * than RTS value. |
| 77 | */ |
| 78 | #define DEFAULT_RTS_THRESHOLD 2347U |
| 79 | #define MIN_RTS_THRESHOLD 0U |
| 80 | #define MAX_RTS_THRESHOLD 2347U |
| 81 | #define MAX_MSDU_SIZE 2304U |
| 82 | #define MAX_MPDU_SIZE 2346U |
| 83 | #define DEFAULT_BEACON_INTERVAL 100U |
| 84 | #define DEFAULT_SHORT_RETRY_LIMIT 7U |
| 85 | #define DEFAULT_LONG_RETRY_LIMIT 4U |
| 86 | |
| 87 | struct iwl_rx_mem_buffer { |
| 88 | dma_addr_t page_dma; |
| 89 | struct page *page; |
| 90 | struct list_head list; |
| 91 | }; |
| 92 | |
| 93 | #define rxb_addr(r) page_address(r->page) |
| 94 | |
| 95 | /* defined below */ |
| 96 | struct iwl_device_cmd; |
| 97 | |
| 98 | struct iwl_cmd_meta { |
| 99 | /* only for SYNC commands, iff the reply skb is wanted */ |
| 100 | struct iwl_host_cmd *source; |
| 101 | /* |
| 102 | * only for ASYNC commands |
| 103 | * (which is somewhat stupid -- look at iwl-sta.c for instance |
| 104 | * which duplicates a bunch of code because the callback isn't |
| 105 | * invoked for SYNC commands, if it were and its result passed |
| 106 | * through it would be simpler...) |
| 107 | */ |
| 108 | void (*callback)(struct iwl_priv *priv, |
| 109 | struct iwl_device_cmd *cmd, |
| 110 | struct iwl_rx_packet *pkt); |
| 111 | |
| 112 | /* The CMD_SIZE_HUGE flag bit indicates that the command |
| 113 | * structure is stored at the end of the shared queue memory. */ |
| 114 | u32 flags; |
| 115 | |
| 116 | DEFINE_DMA_UNMAP_ADDR(mapping); |
| 117 | DEFINE_DMA_UNMAP_LEN(len); |
| 118 | }; |
| 119 | |
| 120 | /* |
| 121 | * Generic queue structure |
| 122 | * |
| 123 | * Contains common data for Rx and Tx queues |
| 124 | */ |
| 125 | struct iwl_queue { |
| 126 | int n_bd; /* number of BDs in this queue */ |
| 127 | int write_ptr; /* 1-st empty entry (index) host_w*/ |
| 128 | int read_ptr; /* last used entry (index) host_r*/ |
| 129 | /* use for monitoring and recovering the stuck queue */ |
| 130 | dma_addr_t dma_addr; /* physical addr for BD's */ |
| 131 | int n_window; /* safe queue window */ |
| 132 | u32 id; |
| 133 | int low_mark; /* low watermark, resume queue if free |
| 134 | * space more than this */ |
| 135 | int high_mark; /* high watermark, stop queue if free |
| 136 | * space less than this */ |
Stanislaw Gruszka | 5855c7d | 2011-04-28 11:51:28 +0200 | [diff] [blame] | 137 | }; |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 138 | |
| 139 | /* One for each TFD */ |
| 140 | struct iwl_tx_info { |
| 141 | struct sk_buff *skb; |
| 142 | struct iwl_rxon_context *ctx; |
| 143 | }; |
| 144 | |
| 145 | /** |
| 146 | * struct iwl_tx_queue - Tx Queue for DMA |
| 147 | * @q: generic Rx/Tx queue descriptor |
| 148 | * @bd: base of circular buffer of TFDs |
| 149 | * @cmd: array of command/TX buffer pointers |
| 150 | * @meta: array of meta data for each command/tx buffer |
| 151 | * @dma_addr_cmd: physical address of cmd/tx buffer array |
| 152 | * @txb: array of per-TFD driver data |
| 153 | * @time_stamp: time (in jiffies) of last read_ptr change |
| 154 | * @need_update: indicates need to update read/write index |
| 155 | * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled |
| 156 | * |
| 157 | * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame |
| 158 | * descriptors) and required locking structures. |
| 159 | */ |
| 160 | #define TFD_TX_CMD_SLOTS 256 |
| 161 | #define TFD_CMD_SLOTS 32 |
| 162 | |
| 163 | struct iwl_tx_queue { |
| 164 | struct iwl_queue q; |
| 165 | void *tfds; |
| 166 | struct iwl_device_cmd **cmd; |
| 167 | struct iwl_cmd_meta *meta; |
| 168 | struct iwl_tx_info *txb; |
| 169 | unsigned long time_stamp; |
| 170 | u8 need_update; |
| 171 | u8 sched_retry; |
| 172 | u8 active; |
| 173 | u8 swq_id; |
| 174 | }; |
| 175 | |
| 176 | #define IWL_NUM_SCAN_RATES (2) |
| 177 | |
| 178 | struct iwl4965_channel_tgd_info { |
| 179 | u8 type; |
| 180 | s8 max_power; |
| 181 | }; |
| 182 | |
| 183 | struct iwl4965_channel_tgh_info { |
| 184 | s64 last_radar_time; |
| 185 | }; |
| 186 | |
| 187 | #define IWL4965_MAX_RATE (33) |
| 188 | |
| 189 | struct iwl3945_clip_group { |
| 190 | /* maximum power level to prevent clipping for each rate, derived by |
| 191 | * us from this band's saturation power in EEPROM */ |
| 192 | const s8 clip_powers[IWL_MAX_RATES]; |
| 193 | }; |
| 194 | |
| 195 | /* current Tx power values to use, one for each rate for each channel. |
| 196 | * requested power is limited by: |
| 197 | * -- regulatory EEPROM limits for this channel |
| 198 | * -- hardware capabilities (clip-powers) |
| 199 | * -- spectrum management |
| 200 | * -- user preference (e.g. iwconfig) |
| 201 | * when requested power is set, base power index must also be set. */ |
| 202 | struct iwl3945_channel_power_info { |
| 203 | struct iwl3945_tx_power tpc; /* actual radio and DSP gain settings */ |
| 204 | s8 power_table_index; /* actual (compenst'd) index into gain table */ |
| 205 | s8 base_power_index; /* gain index for power at factory temp. */ |
| 206 | s8 requested_power; /* power (dBm) requested for this chnl/rate */ |
| 207 | }; |
| 208 | |
| 209 | /* current scan Tx power values to use, one for each scan rate for each |
| 210 | * channel. */ |
| 211 | struct iwl3945_scan_power_info { |
| 212 | struct iwl3945_tx_power tpc; /* actual radio and DSP gain settings */ |
| 213 | s8 power_table_index; /* actual (compenst'd) index into gain table */ |
| 214 | s8 requested_power; /* scan pwr (dBm) requested for chnl/rate */ |
| 215 | }; |
| 216 | |
| 217 | /* |
| 218 | * One for each channel, holds all channel setup data |
| 219 | * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant |
| 220 | * with one another! |
| 221 | */ |
| 222 | struct iwl_channel_info { |
| 223 | struct iwl4965_channel_tgd_info tgd; |
| 224 | struct iwl4965_channel_tgh_info tgh; |
| 225 | struct iwl_eeprom_channel eeprom; /* EEPROM regulatory limit */ |
| 226 | struct iwl_eeprom_channel ht40_eeprom; /* EEPROM regulatory limit for |
| 227 | * HT40 channel */ |
| 228 | |
| 229 | u8 channel; /* channel number */ |
| 230 | u8 flags; /* flags copied from EEPROM */ |
| 231 | s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */ |
| 232 | s8 curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) limit */ |
| 233 | s8 min_power; /* always 0 */ |
| 234 | s8 scan_power; /* (dBm) regul. eeprom, direct scans, any rate */ |
| 235 | |
| 236 | u8 group_index; /* 0-4, maps channel to group1/2/3/4/5 */ |
| 237 | u8 band_index; /* 0-4, maps channel to band1/2/3/4/5 */ |
| 238 | enum ieee80211_band band; |
| 239 | |
| 240 | /* HT40 channel info */ |
| 241 | s8 ht40_max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */ |
| 242 | u8 ht40_flags; /* flags copied from EEPROM */ |
| 243 | u8 ht40_extension_channel; /* HT_IE_EXT_CHANNEL_* */ |
| 244 | |
| 245 | /* Radio/DSP gain settings for each "normal" data Tx rate. |
| 246 | * These include, in addition to RF and DSP gain, a few fields for |
| 247 | * remembering/modifying gain settings (indexes). */ |
| 248 | struct iwl3945_channel_power_info power_info[IWL4965_MAX_RATE]; |
| 249 | |
| 250 | /* Radio/DSP gain settings for each scan rate, for directed scans. */ |
| 251 | struct iwl3945_scan_power_info scan_pwr_info[IWL_NUM_SCAN_RATES]; |
| 252 | }; |
| 253 | |
| 254 | #define IWL_TX_FIFO_BK 0 /* shared */ |
| 255 | #define IWL_TX_FIFO_BE 1 |
| 256 | #define IWL_TX_FIFO_VI 2 /* shared */ |
| 257 | #define IWL_TX_FIFO_VO 3 |
| 258 | #define IWL_TX_FIFO_UNUSED -1 |
| 259 | |
| 260 | /* Minimum number of queues. MAX_NUM is defined in hw specific files. |
| 261 | * Set the minimum to accommodate the 4 standard TX queues, 1 command |
| 262 | * queue, 2 (unused) HCCA queues, and 4 HT queues (one for each AC) */ |
| 263 | #define IWL_MIN_NUM_QUEUES 10 |
| 264 | |
| 265 | #define IWL_DEFAULT_CMD_QUEUE_NUM 4 |
| 266 | |
| 267 | #define IEEE80211_DATA_LEN 2304 |
| 268 | #define IEEE80211_4ADDR_LEN 30 |
| 269 | #define IEEE80211_HLEN (IEEE80211_4ADDR_LEN) |
| 270 | #define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN) |
| 271 | |
| 272 | struct iwl_frame { |
| 273 | union { |
| 274 | struct ieee80211_hdr frame; |
| 275 | struct iwl_tx_beacon_cmd beacon; |
| 276 | u8 raw[IEEE80211_FRAME_LEN]; |
| 277 | u8 cmd[360]; |
| 278 | } u; |
| 279 | struct list_head list; |
| 280 | }; |
| 281 | |
| 282 | #define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4) |
| 283 | #define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ) |
| 284 | #define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4) |
| 285 | |
| 286 | enum { |
| 287 | CMD_SYNC = 0, |
| 288 | CMD_SIZE_NORMAL = 0, |
| 289 | CMD_NO_SKB = 0, |
| 290 | CMD_SIZE_HUGE = (1 << 0), |
| 291 | CMD_ASYNC = (1 << 1), |
| 292 | CMD_WANT_SKB = (1 << 2), |
Stanislaw Gruszka | 81e6326 | 2011-04-28 11:51:31 +0200 | [diff] [blame] | 293 | CMD_MAPPED = (1 << 3), |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 294 | }; |
| 295 | |
| 296 | #define DEF_CMD_PAYLOAD_SIZE 320 |
| 297 | |
| 298 | /** |
| 299 | * struct iwl_device_cmd |
| 300 | * |
| 301 | * For allocation of the command and tx queues, this establishes the overall |
| 302 | * size of the largest command we send to uCode, except for a scan command |
| 303 | * (which is relatively huge; space is allocated separately). |
| 304 | */ |
| 305 | struct iwl_device_cmd { |
| 306 | struct iwl_cmd_header hdr; /* uCode API */ |
| 307 | union { |
| 308 | u32 flags; |
| 309 | u8 val8; |
| 310 | u16 val16; |
| 311 | u32 val32; |
| 312 | struct iwl_tx_cmd tx; |
| 313 | u8 payload[DEF_CMD_PAYLOAD_SIZE]; |
| 314 | } __packed cmd; |
| 315 | } __packed; |
| 316 | |
| 317 | #define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_device_cmd)) |
| 318 | |
| 319 | |
| 320 | struct iwl_host_cmd { |
| 321 | const void *data; |
| 322 | unsigned long reply_page; |
| 323 | void (*callback)(struct iwl_priv *priv, |
| 324 | struct iwl_device_cmd *cmd, |
| 325 | struct iwl_rx_packet *pkt); |
| 326 | u32 flags; |
| 327 | u16 len; |
| 328 | u8 id; |
| 329 | }; |
| 330 | |
| 331 | #define SUP_RATE_11A_MAX_NUM_CHANNELS 8 |
| 332 | #define SUP_RATE_11B_MAX_NUM_CHANNELS 4 |
| 333 | #define SUP_RATE_11G_MAX_NUM_CHANNELS 12 |
| 334 | |
| 335 | /** |
| 336 | * struct iwl_rx_queue - Rx queue |
| 337 | * @bd: driver's pointer to buffer of receive buffer descriptors (rbd) |
| 338 | * @bd_dma: bus address of buffer of receive buffer descriptors (rbd) |
| 339 | * @read: Shared index to newest available Rx buffer |
| 340 | * @write: Shared index to oldest written Rx packet |
| 341 | * @free_count: Number of pre-allocated buffers in rx_free |
| 342 | * @rx_free: list of free SKBs for use |
| 343 | * @rx_used: List of Rx buffers with no SKB |
| 344 | * @need_update: flag to indicate we need to update read/write index |
| 345 | * @rb_stts: driver's pointer to receive buffer status |
| 346 | * @rb_stts_dma: bus address of receive buffer status |
| 347 | * |
| 348 | * NOTE: rx_free and rx_used are used as a FIFO for iwl_rx_mem_buffers |
| 349 | */ |
| 350 | struct iwl_rx_queue { |
| 351 | __le32 *bd; |
| 352 | dma_addr_t bd_dma; |
| 353 | struct iwl_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS]; |
| 354 | struct iwl_rx_mem_buffer *queue[RX_QUEUE_SIZE]; |
| 355 | u32 read; |
| 356 | u32 write; |
| 357 | u32 free_count; |
| 358 | u32 write_actual; |
| 359 | struct list_head rx_free; |
| 360 | struct list_head rx_used; |
| 361 | int need_update; |
| 362 | struct iwl_rb_status *rb_stts; |
| 363 | dma_addr_t rb_stts_dma; |
| 364 | spinlock_t lock; |
| 365 | }; |
| 366 | |
| 367 | #define IWL_SUPPORTED_RATES_IE_LEN 8 |
| 368 | |
| 369 | #define MAX_TID_COUNT 9 |
| 370 | |
| 371 | #define IWL_INVALID_RATE 0xFF |
| 372 | #define IWL_INVALID_VALUE -1 |
| 373 | |
| 374 | /** |
| 375 | * struct iwl_ht_agg -- aggregation status while waiting for block-ack |
| 376 | * @txq_id: Tx queue used for Tx attempt |
| 377 | * @frame_count: # frames attempted by Tx command |
| 378 | * @wait_for_ba: Expect block-ack before next Tx reply |
| 379 | * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window |
| 380 | * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window |
| 381 | * @bitmap1: High order, one bit for each frame pending ACK in Tx window |
| 382 | * @rate_n_flags: Rate at which Tx was attempted |
| 383 | * |
| 384 | * If REPLY_TX indicates that aggregation was attempted, driver must wait |
| 385 | * for block ack (REPLY_COMPRESSED_BA). This struct stores tx reply info |
| 386 | * until block ack arrives. |
| 387 | */ |
| 388 | struct iwl_ht_agg { |
| 389 | u16 txq_id; |
| 390 | u16 frame_count; |
| 391 | u16 wait_for_ba; |
| 392 | u16 start_idx; |
| 393 | u64 bitmap; |
| 394 | u32 rate_n_flags; |
| 395 | #define IWL_AGG_OFF 0 |
| 396 | #define IWL_AGG_ON 1 |
| 397 | #define IWL_EMPTYING_HW_QUEUE_ADDBA 2 |
| 398 | #define IWL_EMPTYING_HW_QUEUE_DELBA 3 |
| 399 | u8 state; |
| 400 | }; |
| 401 | |
| 402 | |
| 403 | struct iwl_tid_data { |
| 404 | u16 seq_number; /* 4965 only */ |
| 405 | u16 tfds_in_queue; |
| 406 | struct iwl_ht_agg agg; |
| 407 | }; |
| 408 | |
| 409 | struct iwl_hw_key { |
| 410 | u32 cipher; |
| 411 | int keylen; |
| 412 | u8 keyidx; |
| 413 | u8 key[32]; |
| 414 | }; |
| 415 | |
| 416 | union iwl_ht_rate_supp { |
| 417 | u16 rates; |
| 418 | struct { |
| 419 | u8 siso_rate; |
| 420 | u8 mimo_rate; |
| 421 | }; |
| 422 | }; |
| 423 | |
| 424 | #define CFG_HT_RX_AMPDU_FACTOR_8K (0x0) |
| 425 | #define CFG_HT_RX_AMPDU_FACTOR_16K (0x1) |
| 426 | #define CFG_HT_RX_AMPDU_FACTOR_32K (0x2) |
| 427 | #define CFG_HT_RX_AMPDU_FACTOR_64K (0x3) |
| 428 | #define CFG_HT_RX_AMPDU_FACTOR_DEF CFG_HT_RX_AMPDU_FACTOR_64K |
| 429 | #define CFG_HT_RX_AMPDU_FACTOR_MAX CFG_HT_RX_AMPDU_FACTOR_64K |
| 430 | #define CFG_HT_RX_AMPDU_FACTOR_MIN CFG_HT_RX_AMPDU_FACTOR_8K |
| 431 | |
| 432 | /* |
| 433 | * Maximal MPDU density for TX aggregation |
| 434 | * 4 - 2us density |
| 435 | * 5 - 4us density |
| 436 | * 6 - 8us density |
| 437 | * 7 - 16us density |
| 438 | */ |
| 439 | #define CFG_HT_MPDU_DENSITY_2USEC (0x4) |
| 440 | #define CFG_HT_MPDU_DENSITY_4USEC (0x5) |
| 441 | #define CFG_HT_MPDU_DENSITY_8USEC (0x6) |
| 442 | #define CFG_HT_MPDU_DENSITY_16USEC (0x7) |
| 443 | #define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_4USEC |
| 444 | #define CFG_HT_MPDU_DENSITY_MAX CFG_HT_MPDU_DENSITY_16USEC |
| 445 | #define CFG_HT_MPDU_DENSITY_MIN (0x1) |
| 446 | |
| 447 | struct iwl_ht_config { |
| 448 | bool single_chain_sufficient; |
| 449 | enum ieee80211_smps_mode smps; /* current smps mode */ |
| 450 | }; |
| 451 | |
| 452 | /* QoS structures */ |
| 453 | struct iwl_qos_info { |
| 454 | int qos_active; |
| 455 | struct iwl_qosparam_cmd def_qos_parm; |
| 456 | }; |
| 457 | |
| 458 | /* |
| 459 | * Structure should be accessed with sta_lock held. When station addition |
| 460 | * is in progress (IWL_STA_UCODE_INPROGRESS) it is possible to access only |
| 461 | * the commands (iwl_legacy_addsta_cmd and iwl_link_quality_cmd) without |
| 462 | * sta_lock held. |
| 463 | */ |
| 464 | struct iwl_station_entry { |
| 465 | struct iwl_legacy_addsta_cmd sta; |
| 466 | struct iwl_tid_data tid[MAX_TID_COUNT]; |
| 467 | u8 used, ctxid; |
| 468 | struct iwl_hw_key keyinfo; |
| 469 | struct iwl_link_quality_cmd *lq; |
| 470 | }; |
| 471 | |
| 472 | struct iwl_station_priv_common { |
| 473 | struct iwl_rxon_context *ctx; |
| 474 | u8 sta_id; |
| 475 | }; |
| 476 | |
| 477 | /* |
| 478 | * iwl_station_priv: Driver's private station information |
| 479 | * |
| 480 | * When mac80211 creates a station it reserves some space (hw->sta_data_size) |
| 481 | * in the structure for use by driver. This structure is places in that |
| 482 | * space. |
| 483 | * |
| 484 | * The common struct MUST be first because it is shared between |
| 485 | * 3945 and 4965! |
| 486 | */ |
| 487 | struct iwl_station_priv { |
| 488 | struct iwl_station_priv_common common; |
| 489 | struct iwl_lq_sta lq_sta; |
| 490 | atomic_t pending_frames; |
| 491 | bool client; |
| 492 | bool asleep; |
| 493 | }; |
| 494 | |
| 495 | /** |
| 496 | * struct iwl_vif_priv - driver's private per-interface information |
| 497 | * |
| 498 | * When mac80211 allocates a virtual interface, it can allocate |
| 499 | * space for us to put data into. |
| 500 | */ |
| 501 | struct iwl_vif_priv { |
| 502 | struct iwl_rxon_context *ctx; |
| 503 | u8 ibss_bssid_sta_id; |
| 504 | }; |
| 505 | |
| 506 | /* one for each uCode image (inst/data, boot/init/runtime) */ |
| 507 | struct fw_desc { |
| 508 | void *v_addr; /* access by driver */ |
| 509 | dma_addr_t p_addr; /* access by card's busmaster DMA */ |
| 510 | u32 len; /* bytes */ |
| 511 | }; |
| 512 | |
| 513 | /* uCode file layout */ |
| 514 | struct iwl_ucode_header { |
| 515 | __le32 ver; /* major/minor/API/serial */ |
| 516 | struct { |
| 517 | __le32 inst_size; /* bytes of runtime code */ |
| 518 | __le32 data_size; /* bytes of runtime data */ |
| 519 | __le32 init_size; /* bytes of init code */ |
| 520 | __le32 init_data_size; /* bytes of init data */ |
| 521 | __le32 boot_size; /* bytes of bootstrap code */ |
| 522 | u8 data[0]; /* in same order as sizes */ |
| 523 | } v1; |
| 524 | }; |
| 525 | |
| 526 | struct iwl4965_ibss_seq { |
| 527 | u8 mac[ETH_ALEN]; |
| 528 | u16 seq_num; |
| 529 | u16 frag_num; |
| 530 | unsigned long packet_time; |
| 531 | struct list_head list; |
| 532 | }; |
| 533 | |
| 534 | struct iwl_sensitivity_ranges { |
| 535 | u16 min_nrg_cck; |
| 536 | u16 max_nrg_cck; |
| 537 | |
| 538 | u16 nrg_th_cck; |
| 539 | u16 nrg_th_ofdm; |
| 540 | |
| 541 | u16 auto_corr_min_ofdm; |
| 542 | u16 auto_corr_min_ofdm_mrc; |
| 543 | u16 auto_corr_min_ofdm_x1; |
| 544 | u16 auto_corr_min_ofdm_mrc_x1; |
| 545 | |
| 546 | u16 auto_corr_max_ofdm; |
| 547 | u16 auto_corr_max_ofdm_mrc; |
| 548 | u16 auto_corr_max_ofdm_x1; |
| 549 | u16 auto_corr_max_ofdm_mrc_x1; |
| 550 | |
| 551 | u16 auto_corr_max_cck; |
| 552 | u16 auto_corr_max_cck_mrc; |
| 553 | u16 auto_corr_min_cck; |
| 554 | u16 auto_corr_min_cck_mrc; |
| 555 | |
| 556 | u16 barker_corr_th_min; |
| 557 | u16 barker_corr_th_min_mrc; |
| 558 | u16 nrg_th_cca; |
| 559 | }; |
| 560 | |
| 561 | |
| 562 | #define KELVIN_TO_CELSIUS(x) ((x)-273) |
| 563 | #define CELSIUS_TO_KELVIN(x) ((x)+273) |
| 564 | |
| 565 | |
| 566 | /** |
| 567 | * struct iwl_hw_params |
| 568 | * @max_txq_num: Max # Tx queues supported |
| 569 | * @dma_chnl_num: Number of Tx DMA/FIFO channels |
| 570 | * @scd_bc_tbls_size: size of scheduler byte count tables |
| 571 | * @tfd_size: TFD size |
| 572 | * @tx/rx_chains_num: Number of TX/RX chains |
| 573 | * @valid_tx/rx_ant: usable antennas |
| 574 | * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2) |
| 575 | * @max_rxq_log: Log-base-2 of max_rxq_size |
| 576 | * @rx_page_order: Rx buffer page order |
| 577 | * @rx_wrt_ptr_reg: FH{39}_RSCSR_CHNL0_WPTR |
| 578 | * @max_stations: |
| 579 | * @ht40_channel: is 40MHz width possible in band 2.4 |
| 580 | * BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ) |
| 581 | * @sw_crypto: 0 for hw, 1 for sw |
| 582 | * @max_xxx_size: for ucode uses |
| 583 | * @ct_kill_threshold: temperature threshold |
| 584 | * @beacon_time_tsf_bits: number of valid tsf bits for beacon time |
| 585 | * @struct iwl_sensitivity_ranges: range of sensitivity values |
| 586 | */ |
| 587 | struct iwl_hw_params { |
| 588 | u8 max_txq_num; |
| 589 | u8 dma_chnl_num; |
| 590 | u16 scd_bc_tbls_size; |
| 591 | u32 tfd_size; |
| 592 | u8 tx_chains_num; |
| 593 | u8 rx_chains_num; |
| 594 | u8 valid_tx_ant; |
| 595 | u8 valid_rx_ant; |
| 596 | u16 max_rxq_size; |
| 597 | u16 max_rxq_log; |
| 598 | u32 rx_page_order; |
| 599 | u32 rx_wrt_ptr_reg; |
| 600 | u8 max_stations; |
| 601 | u8 ht40_channel; |
| 602 | u8 max_beacon_itrvl; /* in 1024 ms */ |
| 603 | u32 max_inst_size; |
| 604 | u32 max_data_size; |
| 605 | u32 max_bsm_size; |
| 606 | u32 ct_kill_threshold; /* value in hw-dependent units */ |
| 607 | u16 beacon_time_tsf_bits; |
| 608 | const struct iwl_sensitivity_ranges *sens; |
| 609 | }; |
| 610 | |
| 611 | |
| 612 | /****************************************************************************** |
| 613 | * |
| 614 | * Functions implemented in core module which are forward declared here |
| 615 | * for use by iwl-[4-5].c |
| 616 | * |
| 617 | * NOTE: The implementation of these functions are not hardware specific |
| 618 | * which is why they are in the core module files. |
| 619 | * |
| 620 | * Naming convention -- |
| 621 | * iwl_ <-- Is part of iwlwifi |
| 622 | * iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX) |
| 623 | * iwl4965_bg_ <-- Called from work queue context |
| 624 | * iwl4965_mac_ <-- mac80211 callback |
| 625 | * |
| 626 | ****************************************************************************/ |
| 627 | extern void iwl4965_update_chain_flags(struct iwl_priv *priv); |
John W. Linville | ef33417 | 2011-02-25 15:51:01 -0500 | [diff] [blame] | 628 | extern const u8 iwlegacy_bcast_addr[ETH_ALEN]; |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 629 | extern int iwl_legacy_queue_space(const struct iwl_queue *q); |
| 630 | static inline int iwl_legacy_queue_used(const struct iwl_queue *q, int i) |
| 631 | { |
| 632 | return q->write_ptr >= q->read_ptr ? |
| 633 | (i >= q->read_ptr && i < q->write_ptr) : |
| 634 | !(i < q->read_ptr && i >= q->write_ptr); |
| 635 | } |
| 636 | |
| 637 | |
| 638 | static inline u8 iwl_legacy_get_cmd_index(struct iwl_queue *q, u32 index, |
| 639 | int is_huge) |
| 640 | { |
| 641 | /* |
| 642 | * This is for init calibration result and scan command which |
| 643 | * required buffer > TFD_MAX_PAYLOAD_SIZE, |
| 644 | * the big buffer at end of command array |
| 645 | */ |
| 646 | if (is_huge) |
| 647 | return q->n_window; /* must be power of 2 */ |
| 648 | |
| 649 | /* Otherwise, use normal size buffers */ |
| 650 | return index & (q->n_window - 1); |
| 651 | } |
| 652 | |
| 653 | |
| 654 | struct iwl_dma_ptr { |
| 655 | dma_addr_t dma; |
| 656 | void *addr; |
| 657 | size_t size; |
| 658 | }; |
| 659 | |
| 660 | #define IWL_OPERATION_MODE_AUTO 0 |
| 661 | #define IWL_OPERATION_MODE_HT_ONLY 1 |
| 662 | #define IWL_OPERATION_MODE_MIXED 2 |
| 663 | #define IWL_OPERATION_MODE_20MHZ 3 |
| 664 | |
| 665 | #define IWL_TX_CRC_SIZE 4 |
| 666 | #define IWL_TX_DELIMITER_SIZE 4 |
| 667 | |
| 668 | #define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000 |
| 669 | |
| 670 | /* Sensitivity and chain noise calibration */ |
| 671 | #define INITIALIZATION_VALUE 0xFFFF |
| 672 | #define IWL4965_CAL_NUM_BEACONS 20 |
| 673 | #define IWL_CAL_NUM_BEACONS 16 |
| 674 | #define MAXIMUM_ALLOWED_PATHLOSS 15 |
| 675 | |
| 676 | #define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3 |
| 677 | |
| 678 | #define MAX_FA_OFDM 50 |
| 679 | #define MIN_FA_OFDM 5 |
| 680 | #define MAX_FA_CCK 50 |
| 681 | #define MIN_FA_CCK 5 |
| 682 | |
| 683 | #define AUTO_CORR_STEP_OFDM 1 |
| 684 | |
| 685 | #define AUTO_CORR_STEP_CCK 3 |
| 686 | #define AUTO_CORR_MAX_TH_CCK 160 |
| 687 | |
| 688 | #define NRG_DIFF 2 |
| 689 | #define NRG_STEP_CCK 2 |
| 690 | #define NRG_MARGIN 8 |
| 691 | #define MAX_NUMBER_CCK_NO_FA 100 |
| 692 | |
| 693 | #define AUTO_CORR_CCK_MIN_VAL_DEF (125) |
| 694 | |
| 695 | #define CHAIN_A 0 |
| 696 | #define CHAIN_B 1 |
| 697 | #define CHAIN_C 2 |
| 698 | #define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4 |
| 699 | #define ALL_BAND_FILTER 0xFF00 |
| 700 | #define IN_BAND_FILTER 0xFF |
| 701 | #define MIN_AVERAGE_NOISE_MAX_VALUE 0xFFFFFFFF |
| 702 | |
| 703 | #define NRG_NUM_PREV_STAT_L 20 |
| 704 | #define NUM_RX_CHAINS 3 |
| 705 | |
| 706 | enum iwl4965_false_alarm_state { |
| 707 | IWL_FA_TOO_MANY = 0, |
| 708 | IWL_FA_TOO_FEW = 1, |
| 709 | IWL_FA_GOOD_RANGE = 2, |
| 710 | }; |
| 711 | |
| 712 | enum iwl4965_chain_noise_state { |
| 713 | IWL_CHAIN_NOISE_ALIVE = 0, /* must be 0 */ |
| 714 | IWL_CHAIN_NOISE_ACCUMULATE, |
| 715 | IWL_CHAIN_NOISE_CALIBRATED, |
| 716 | IWL_CHAIN_NOISE_DONE, |
| 717 | }; |
| 718 | |
| 719 | enum iwl4965_calib_enabled_state { |
| 720 | IWL_CALIB_DISABLED = 0, /* must be 0 */ |
| 721 | IWL_CALIB_ENABLED = 1, |
| 722 | }; |
| 723 | |
| 724 | /* |
| 725 | * enum iwl_calib |
| 726 | * defines the order in which results of initial calibrations |
| 727 | * should be sent to the runtime uCode |
| 728 | */ |
| 729 | enum iwl_calib { |
| 730 | IWL_CALIB_MAX, |
| 731 | }; |
| 732 | |
| 733 | /* Opaque calibration results */ |
| 734 | struct iwl_calib_result { |
| 735 | void *buf; |
| 736 | size_t buf_len; |
| 737 | }; |
| 738 | |
| 739 | enum ucode_type { |
| 740 | UCODE_NONE = 0, |
| 741 | UCODE_INIT, |
| 742 | UCODE_RT |
| 743 | }; |
| 744 | |
| 745 | /* Sensitivity calib data */ |
| 746 | struct iwl_sensitivity_data { |
| 747 | u32 auto_corr_ofdm; |
| 748 | u32 auto_corr_ofdm_mrc; |
| 749 | u32 auto_corr_ofdm_x1; |
| 750 | u32 auto_corr_ofdm_mrc_x1; |
| 751 | u32 auto_corr_cck; |
| 752 | u32 auto_corr_cck_mrc; |
| 753 | |
| 754 | u32 last_bad_plcp_cnt_ofdm; |
| 755 | u32 last_fa_cnt_ofdm; |
| 756 | u32 last_bad_plcp_cnt_cck; |
| 757 | u32 last_fa_cnt_cck; |
| 758 | |
| 759 | u32 nrg_curr_state; |
| 760 | u32 nrg_prev_state; |
| 761 | u32 nrg_value[10]; |
| 762 | u8 nrg_silence_rssi[NRG_NUM_PREV_STAT_L]; |
| 763 | u32 nrg_silence_ref; |
| 764 | u32 nrg_energy_idx; |
| 765 | u32 nrg_silence_idx; |
| 766 | u32 nrg_th_cck; |
| 767 | s32 nrg_auto_corr_silence_diff; |
| 768 | u32 num_in_cck_no_fa; |
| 769 | u32 nrg_th_ofdm; |
| 770 | |
| 771 | u16 barker_corr_th_min; |
| 772 | u16 barker_corr_th_min_mrc; |
| 773 | u16 nrg_th_cca; |
| 774 | }; |
| 775 | |
| 776 | /* Chain noise (differential Rx gain) calib data */ |
| 777 | struct iwl_chain_noise_data { |
| 778 | u32 active_chains; |
| 779 | u32 chain_noise_a; |
| 780 | u32 chain_noise_b; |
| 781 | u32 chain_noise_c; |
| 782 | u32 chain_signal_a; |
| 783 | u32 chain_signal_b; |
| 784 | u32 chain_signal_c; |
| 785 | u16 beacon_count; |
| 786 | u8 disconn_array[NUM_RX_CHAINS]; |
| 787 | u8 delta_gain_code[NUM_RX_CHAINS]; |
| 788 | u8 radio_write; |
| 789 | u8 state; |
| 790 | }; |
| 791 | |
| 792 | #define EEPROM_SEM_TIMEOUT 10 /* milliseconds */ |
| 793 | #define EEPROM_SEM_RETRY_LIMIT 1000 /* number of attempts (not time) */ |
| 794 | |
| 795 | #define IWL_TRAFFIC_ENTRIES (256) |
| 796 | #define IWL_TRAFFIC_ENTRY_SIZE (64) |
| 797 | |
| 798 | enum { |
| 799 | MEASUREMENT_READY = (1 << 0), |
| 800 | MEASUREMENT_ACTIVE = (1 << 1), |
| 801 | }; |
| 802 | |
| 803 | /* interrupt statistics */ |
| 804 | struct isr_statistics { |
| 805 | u32 hw; |
| 806 | u32 sw; |
| 807 | u32 err_code; |
| 808 | u32 sch; |
| 809 | u32 alive; |
| 810 | u32 rfkill; |
| 811 | u32 ctkill; |
| 812 | u32 wakeup; |
| 813 | u32 rx; |
| 814 | u32 rx_handlers[REPLY_MAX]; |
| 815 | u32 tx; |
| 816 | u32 unhandled; |
| 817 | }; |
| 818 | |
| 819 | /* management statistics */ |
| 820 | enum iwl_mgmt_stats { |
| 821 | MANAGEMENT_ASSOC_REQ = 0, |
| 822 | MANAGEMENT_ASSOC_RESP, |
| 823 | MANAGEMENT_REASSOC_REQ, |
| 824 | MANAGEMENT_REASSOC_RESP, |
| 825 | MANAGEMENT_PROBE_REQ, |
| 826 | MANAGEMENT_PROBE_RESP, |
| 827 | MANAGEMENT_BEACON, |
| 828 | MANAGEMENT_ATIM, |
| 829 | MANAGEMENT_DISASSOC, |
| 830 | MANAGEMENT_AUTH, |
| 831 | MANAGEMENT_DEAUTH, |
| 832 | MANAGEMENT_ACTION, |
| 833 | MANAGEMENT_MAX, |
| 834 | }; |
| 835 | /* control statistics */ |
| 836 | enum iwl_ctrl_stats { |
| 837 | CONTROL_BACK_REQ = 0, |
| 838 | CONTROL_BACK, |
| 839 | CONTROL_PSPOLL, |
| 840 | CONTROL_RTS, |
| 841 | CONTROL_CTS, |
| 842 | CONTROL_ACK, |
| 843 | CONTROL_CFEND, |
| 844 | CONTROL_CFENDACK, |
| 845 | CONTROL_MAX, |
| 846 | }; |
| 847 | |
| 848 | struct traffic_stats { |
| 849 | #ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS |
| 850 | u32 mgmt[MANAGEMENT_MAX]; |
| 851 | u32 ctrl[CONTROL_MAX]; |
| 852 | u32 data_cnt; |
| 853 | u64 data_bytes; |
| 854 | #endif |
| 855 | }; |
| 856 | |
| 857 | /* |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 858 | * schedule the timer to wake up every UCODE_TRACE_PERIOD milliseconds |
| 859 | * to perform continuous uCode event logging operation if enabled |
| 860 | */ |
| 861 | #define UCODE_TRACE_PERIOD (100) |
| 862 | |
| 863 | /* |
| 864 | * iwl_event_log: current uCode event log position |
| 865 | * |
| 866 | * @ucode_trace: enable/disable ucode continuous trace timer |
| 867 | * @num_wraps: how many times the event buffer wraps |
| 868 | * @next_entry: the entry just before the next one that uCode would fill |
| 869 | * @non_wraps_count: counter for no wrap detected when dump ucode events |
| 870 | * @wraps_once_count: counter for wrap once detected when dump ucode events |
| 871 | * @wraps_more_count: counter for wrap more than once detected |
| 872 | * when dump ucode events |
| 873 | */ |
| 874 | struct iwl_event_log { |
| 875 | bool ucode_trace; |
| 876 | u32 num_wraps; |
| 877 | u32 next_entry; |
| 878 | int non_wraps_count; |
| 879 | int wraps_once_count; |
| 880 | int wraps_more_count; |
| 881 | }; |
| 882 | |
| 883 | /* |
| 884 | * host interrupt timeout value |
| 885 | * used with setting interrupt coalescing timer |
| 886 | * the CSR_INT_COALESCING is an 8 bit register in 32-usec unit |
| 887 | * |
| 888 | * default interrupt coalescing timer is 64 x 32 = 2048 usecs |
| 889 | * default interrupt coalescing calibration timer is 16 x 32 = 512 usecs |
| 890 | */ |
| 891 | #define IWL_HOST_INT_TIMEOUT_MAX (0xFF) |
| 892 | #define IWL_HOST_INT_TIMEOUT_DEF (0x40) |
| 893 | #define IWL_HOST_INT_TIMEOUT_MIN (0x0) |
| 894 | #define IWL_HOST_INT_CALIB_TIMEOUT_MAX (0xFF) |
| 895 | #define IWL_HOST_INT_CALIB_TIMEOUT_DEF (0x10) |
| 896 | #define IWL_HOST_INT_CALIB_TIMEOUT_MIN (0x0) |
| 897 | |
| 898 | /* |
| 899 | * This is the threshold value of plcp error rate per 100mSecs. It is |
| 900 | * used to set and check for the validity of plcp_delta. |
| 901 | */ |
| 902 | #define IWL_MAX_PLCP_ERR_THRESHOLD_MIN (1) |
| 903 | #define IWL_MAX_PLCP_ERR_THRESHOLD_DEF (50) |
| 904 | #define IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF (100) |
| 905 | #define IWL_MAX_PLCP_ERR_EXT_LONG_THRESHOLD_DEF (200) |
| 906 | #define IWL_MAX_PLCP_ERR_THRESHOLD_MAX (255) |
| 907 | #define IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE (0) |
| 908 | |
| 909 | #define IWL_DELAY_NEXT_FORCE_RF_RESET (HZ*3) |
| 910 | #define IWL_DELAY_NEXT_FORCE_FW_RELOAD (HZ*5) |
| 911 | |
| 912 | /* TX queue watchdog timeouts in mSecs */ |
| 913 | #define IWL_DEF_WD_TIMEOUT (2000) |
| 914 | #define IWL_LONG_WD_TIMEOUT (10000) |
| 915 | #define IWL_MAX_WD_TIMEOUT (120000) |
| 916 | |
| 917 | enum iwl_reset { |
| 918 | IWL_RF_RESET = 0, |
| 919 | IWL_FW_RESET, |
| 920 | IWL_MAX_FORCE_RESET, |
| 921 | }; |
| 922 | |
| 923 | struct iwl_force_reset { |
| 924 | int reset_request_count; |
| 925 | int reset_success_count; |
| 926 | int reset_reject_count; |
| 927 | unsigned long reset_duration; |
| 928 | unsigned long last_force_reset_jiffies; |
| 929 | }; |
| 930 | |
| 931 | /* extend beacon time format bit shifting */ |
| 932 | /* |
| 933 | * for _3945 devices |
| 934 | * bits 31:24 - extended |
| 935 | * bits 23:0 - interval |
| 936 | */ |
| 937 | #define IWL3945_EXT_BEACON_TIME_POS 24 |
| 938 | /* |
| 939 | * for _4965 devices |
| 940 | * bits 31:22 - extended |
| 941 | * bits 21:0 - interval |
| 942 | */ |
| 943 | #define IWL4965_EXT_BEACON_TIME_POS 22 |
| 944 | |
| 945 | enum iwl_rxon_context_id { |
| 946 | IWL_RXON_CTX_BSS, |
| 947 | |
| 948 | NUM_IWL_RXON_CTX |
| 949 | }; |
| 950 | |
| 951 | struct iwl_rxon_context { |
| 952 | struct ieee80211_vif *vif; |
| 953 | |
| 954 | const u8 *ac_to_fifo; |
| 955 | const u8 *ac_to_queue; |
| 956 | u8 mcast_queue; |
| 957 | |
| 958 | /* |
| 959 | * We could use the vif to indicate active, but we |
| 960 | * also need it to be active during disabling when |
| 961 | * we already removed the vif for type setting. |
| 962 | */ |
| 963 | bool always_active, is_active; |
| 964 | |
| 965 | bool ht_need_multiple_chains; |
| 966 | |
| 967 | enum iwl_rxon_context_id ctxid; |
| 968 | |
| 969 | u32 interface_modes, exclusive_interface_modes; |
| 970 | u8 unused_devtype, ap_devtype, ibss_devtype, station_devtype; |
| 971 | |
| 972 | /* |
| 973 | * We declare this const so it can only be |
| 974 | * changed via explicit cast within the |
| 975 | * routines that actually update the physical |
| 976 | * hardware. |
| 977 | */ |
| 978 | const struct iwl_legacy_rxon_cmd active; |
| 979 | struct iwl_legacy_rxon_cmd staging; |
| 980 | |
| 981 | struct iwl_rxon_time_cmd timing; |
| 982 | |
| 983 | struct iwl_qos_info qos_data; |
| 984 | |
| 985 | u8 bcast_sta_id, ap_sta_id; |
| 986 | |
| 987 | u8 rxon_cmd, rxon_assoc_cmd, rxon_timing_cmd; |
| 988 | u8 qos_cmd; |
| 989 | u8 wep_key_cmd; |
| 990 | |
| 991 | struct iwl_wep_key wep_keys[WEP_KEYS_MAX]; |
| 992 | u8 key_mapping_keys; |
| 993 | |
| 994 | __le32 station_flags; |
| 995 | |
| 996 | struct { |
| 997 | bool non_gf_sta_present; |
| 998 | u8 protection; |
| 999 | bool enabled, is_40mhz; |
| 1000 | u8 extension_chan_offset; |
| 1001 | } ht; |
| 1002 | }; |
| 1003 | |
| 1004 | struct iwl_priv { |
| 1005 | |
| 1006 | /* ieee device used by generic ieee processing code */ |
| 1007 | struct ieee80211_hw *hw; |
| 1008 | struct ieee80211_channel *ieee_channels; |
| 1009 | struct ieee80211_rate *ieee_rates; |
| 1010 | struct iwl_cfg *cfg; |
| 1011 | |
| 1012 | /* temporary frame storage list */ |
| 1013 | struct list_head free_frames; |
| 1014 | int frames_count; |
| 1015 | |
| 1016 | enum ieee80211_band band; |
| 1017 | int alloc_rxb_page; |
| 1018 | |
| 1019 | void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv, |
| 1020 | struct iwl_rx_mem_buffer *rxb); |
| 1021 | |
| 1022 | struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS]; |
| 1023 | |
| 1024 | /* spectrum measurement report caching */ |
| 1025 | struct iwl_spectrum_notification measure_report; |
| 1026 | u8 measurement_status; |
| 1027 | |
| 1028 | /* ucode beacon time */ |
| 1029 | u32 ucode_beacon_time; |
| 1030 | int missed_beacon_threshold; |
| 1031 | |
| 1032 | /* track IBSS manager (last beacon) status */ |
| 1033 | u32 ibss_manager; |
| 1034 | |
| 1035 | /* storing the jiffies when the plcp error rate is received */ |
| 1036 | unsigned long plcp_jiffies; |
| 1037 | |
| 1038 | /* force reset */ |
| 1039 | struct iwl_force_reset force_reset[IWL_MAX_FORCE_RESET]; |
| 1040 | |
| 1041 | /* we allocate array of iwl_channel_info for NIC's valid channels. |
| 1042 | * Access via channel # using indirect index array */ |
| 1043 | struct iwl_channel_info *channel_info; /* channel info array */ |
| 1044 | u8 channel_count; /* # of channels */ |
| 1045 | |
| 1046 | /* thermal calibration */ |
| 1047 | s32 temperature; /* degrees Kelvin */ |
| 1048 | s32 last_temperature; |
| 1049 | |
| 1050 | /* init calibration results */ |
| 1051 | struct iwl_calib_result calib_results[IWL_CALIB_MAX]; |
| 1052 | |
| 1053 | /* Scan related variables */ |
| 1054 | unsigned long scan_start; |
| 1055 | unsigned long scan_start_tsf; |
| 1056 | void *scan_cmd; |
| 1057 | enum ieee80211_band scan_band; |
| 1058 | struct cfg80211_scan_request *scan_request; |
| 1059 | struct ieee80211_vif *scan_vif; |
| 1060 | bool is_internal_short_scan; |
| 1061 | u8 scan_tx_ant[IEEE80211_NUM_BANDS]; |
| 1062 | u8 mgmt_tx_ant; |
| 1063 | |
| 1064 | /* spinlock */ |
| 1065 | spinlock_t lock; /* protect general shared data */ |
| 1066 | spinlock_t hcmd_lock; /* protect hcmd */ |
| 1067 | spinlock_t reg_lock; /* protect hw register access */ |
| 1068 | struct mutex mutex; |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 1069 | |
| 1070 | /* basic pci-network driver stuff */ |
| 1071 | struct pci_dev *pci_dev; |
| 1072 | |
| 1073 | /* pci hardware address support */ |
| 1074 | void __iomem *hw_base; |
| 1075 | u32 hw_rev; |
| 1076 | u32 hw_wa_rev; |
| 1077 | u8 rev_id; |
| 1078 | |
| 1079 | /* microcode/device supports multiple contexts */ |
| 1080 | u8 valid_contexts; |
| 1081 | |
| 1082 | /* command queue number */ |
| 1083 | u8 cmd_queue; |
| 1084 | |
| 1085 | /* max number of station keys */ |
| 1086 | u8 sta_key_max_num; |
| 1087 | |
| 1088 | /* EEPROM MAC addresses */ |
| 1089 | struct mac_address addresses[1]; |
| 1090 | |
| 1091 | /* uCode images, save to reload in case of failure */ |
| 1092 | int fw_index; /* firmware we're trying to load */ |
| 1093 | u32 ucode_ver; /* version of ucode, copy of |
| 1094 | iwl_ucode.ver */ |
| 1095 | struct fw_desc ucode_code; /* runtime inst */ |
| 1096 | struct fw_desc ucode_data; /* runtime data original */ |
| 1097 | struct fw_desc ucode_data_backup; /* runtime data save/restore */ |
| 1098 | struct fw_desc ucode_init; /* initialization inst */ |
| 1099 | struct fw_desc ucode_init_data; /* initialization data */ |
| 1100 | struct fw_desc ucode_boot; /* bootstrap inst */ |
| 1101 | enum ucode_type ucode_type; |
| 1102 | u8 ucode_write_complete; /* the image write is complete */ |
| 1103 | char firmware_name[25]; |
| 1104 | |
| 1105 | struct iwl_rxon_context contexts[NUM_IWL_RXON_CTX]; |
| 1106 | |
Stanislaw Gruszka | 51e6525 | 2011-06-08 15:26:31 +0200 | [diff] [blame] | 1107 | __le16 switch_channel; |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 1108 | |
| 1109 | /* 1st responses from initialize and runtime uCode images. |
| 1110 | * _4965's initialize alive response contains some calibration data. */ |
| 1111 | struct iwl_init_alive_resp card_alive_init; |
| 1112 | struct iwl_alive_resp card_alive; |
| 1113 | |
| 1114 | u16 active_rate; |
| 1115 | |
| 1116 | u8 start_calib; |
| 1117 | struct iwl_sensitivity_data sensitivity_data; |
| 1118 | struct iwl_chain_noise_data chain_noise_data; |
| 1119 | __le16 sensitivity_tbl[HD_TABLE_SIZE]; |
| 1120 | |
| 1121 | struct iwl_ht_config current_ht_config; |
| 1122 | |
| 1123 | /* Rate scaling data */ |
| 1124 | u8 retry_rate; |
| 1125 | |
| 1126 | wait_queue_head_t wait_command_queue; |
| 1127 | |
| 1128 | int activity_timer_active; |
| 1129 | |
| 1130 | /* Rx and Tx DMA processing queues */ |
| 1131 | struct iwl_rx_queue rxq; |
| 1132 | struct iwl_tx_queue *txq; |
| 1133 | unsigned long txq_ctx_active_msk; |
| 1134 | struct iwl_dma_ptr kw; /* keep warm address */ |
| 1135 | struct iwl_dma_ptr scd_bc_tbls; |
| 1136 | |
| 1137 | u32 scd_base_addr; /* scheduler sram base address */ |
| 1138 | |
| 1139 | unsigned long status; |
| 1140 | |
| 1141 | /* counts mgmt, ctl, and data packets */ |
| 1142 | struct traffic_stats tx_stats; |
| 1143 | struct traffic_stats rx_stats; |
| 1144 | |
| 1145 | /* counts interrupts */ |
| 1146 | struct isr_statistics isr_stats; |
| 1147 | |
| 1148 | struct iwl_power_mgr power_data; |
| 1149 | |
| 1150 | /* context information */ |
| 1151 | u8 bssid[ETH_ALEN]; /* used only on 3945 but filled by core */ |
| 1152 | |
| 1153 | /* station table variables */ |
| 1154 | |
| 1155 | /* Note: if lock and sta_lock are needed, lock must be acquired first */ |
| 1156 | spinlock_t sta_lock; |
| 1157 | int num_stations; |
| 1158 | struct iwl_station_entry stations[IWL_STATION_COUNT]; |
| 1159 | unsigned long ucode_key_table; |
| 1160 | |
| 1161 | /* queue refcounts */ |
| 1162 | #define IWL_MAX_HW_QUEUES 32 |
| 1163 | unsigned long queue_stopped[BITS_TO_LONGS(IWL_MAX_HW_QUEUES)]; |
| 1164 | /* for each AC */ |
| 1165 | atomic_t queue_stop_count[4]; |
| 1166 | |
| 1167 | /* Indication if ieee80211_ops->open has been called */ |
| 1168 | u8 is_open; |
| 1169 | |
| 1170 | u8 mac80211_registered; |
| 1171 | |
| 1172 | /* eeprom -- this is in the card's little endian byte order */ |
| 1173 | u8 *eeprom; |
| 1174 | struct iwl_eeprom_calib_info *calib_info; |
| 1175 | |
| 1176 | enum nl80211_iftype iw_mode; |
| 1177 | |
| 1178 | /* Last Rx'd beacon timestamp */ |
| 1179 | u64 timestamp; |
| 1180 | |
| 1181 | union { |
| 1182 | #if defined(CONFIG_IWL3945) || defined(CONFIG_IWL3945_MODULE) |
| 1183 | struct { |
| 1184 | void *shared_virt; |
| 1185 | dma_addr_t shared_phys; |
| 1186 | |
| 1187 | struct delayed_work thermal_periodic; |
| 1188 | struct delayed_work rfkill_poll; |
| 1189 | |
| 1190 | struct iwl3945_notif_statistics statistics; |
| 1191 | #ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS |
| 1192 | struct iwl3945_notif_statistics accum_statistics; |
| 1193 | struct iwl3945_notif_statistics delta_statistics; |
| 1194 | struct iwl3945_notif_statistics max_delta; |
| 1195 | #endif |
| 1196 | |
| 1197 | u32 sta_supp_rates; |
| 1198 | int last_rx_rssi; /* From Rx packet statistics */ |
| 1199 | |
| 1200 | /* Rx'd packet timing information */ |
| 1201 | u32 last_beacon_time; |
| 1202 | u64 last_tsf; |
| 1203 | |
| 1204 | /* |
| 1205 | * each calibration channel group in the |
| 1206 | * EEPROM has a derived clip setting for |
| 1207 | * each rate. |
| 1208 | */ |
| 1209 | const struct iwl3945_clip_group clip_groups[5]; |
| 1210 | |
| 1211 | } _3945; |
| 1212 | #endif |
| 1213 | #if defined(CONFIG_IWL4965) || defined(CONFIG_IWL4965_MODULE) |
| 1214 | struct { |
| 1215 | /* |
| 1216 | * reporting the number of tids has AGG on. 0 means |
| 1217 | * no AGGREGATION |
| 1218 | */ |
| 1219 | u8 agg_tids_count; |
| 1220 | |
| 1221 | struct iwl_rx_phy_res last_phy_res; |
| 1222 | bool last_phy_res_valid; |
| 1223 | |
| 1224 | struct completion firmware_loading_complete; |
| 1225 | |
| 1226 | /* |
| 1227 | * chain noise reset and gain commands are the |
| 1228 | * two extra calibration commands follows the standard |
| 1229 | * phy calibration commands |
| 1230 | */ |
| 1231 | u8 phy_calib_chain_noise_reset_cmd; |
| 1232 | u8 phy_calib_chain_noise_gain_cmd; |
| 1233 | |
| 1234 | struct iwl_notif_statistics statistics; |
| 1235 | #ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS |
| 1236 | struct iwl_notif_statistics accum_statistics; |
| 1237 | struct iwl_notif_statistics delta_statistics; |
| 1238 | struct iwl_notif_statistics max_delta; |
| 1239 | #endif |
| 1240 | |
| 1241 | } _4965; |
| 1242 | #endif |
| 1243 | }; |
| 1244 | |
| 1245 | struct iwl_hw_params hw_params; |
| 1246 | |
| 1247 | u32 inta_mask; |
| 1248 | |
| 1249 | struct workqueue_struct *workqueue; |
| 1250 | |
| 1251 | struct work_struct restart; |
| 1252 | struct work_struct scan_completed; |
| 1253 | struct work_struct rx_replenish; |
| 1254 | struct work_struct abort_scan; |
| 1255 | |
| 1256 | struct iwl_rxon_context *beacon_ctx; |
| 1257 | struct sk_buff *beacon_skb; |
| 1258 | |
| 1259 | struct work_struct start_internal_scan; |
| 1260 | struct work_struct tx_flush; |
| 1261 | |
| 1262 | struct tasklet_struct irq_tasklet; |
| 1263 | |
| 1264 | struct delayed_work init_alive_start; |
| 1265 | struct delayed_work alive_start; |
| 1266 | struct delayed_work scan_check; |
| 1267 | |
| 1268 | /* TX Power */ |
| 1269 | s8 tx_power_user_lmt; |
| 1270 | s8 tx_power_device_lmt; |
| 1271 | s8 tx_power_next; |
| 1272 | |
| 1273 | |
| 1274 | #ifdef CONFIG_IWLWIFI_LEGACY_DEBUG |
| 1275 | /* debugging info */ |
| 1276 | u32 debug_level; /* per device debugging will override global |
John W. Linville | ef33417 | 2011-02-25 15:51:01 -0500 | [diff] [blame] | 1277 | iwlegacy_debug_level if set */ |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 1278 | #endif /* CONFIG_IWLWIFI_LEGACY_DEBUG */ |
| 1279 | #ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS |
| 1280 | /* debugfs */ |
| 1281 | u16 tx_traffic_idx; |
| 1282 | u16 rx_traffic_idx; |
| 1283 | u8 *tx_traffic; |
| 1284 | u8 *rx_traffic; |
| 1285 | struct dentry *debugfs_dir; |
| 1286 | u32 dbgfs_sram_offset, dbgfs_sram_len; |
| 1287 | bool disable_ht40; |
| 1288 | #endif /* CONFIG_IWLWIFI_LEGACY_DEBUGFS */ |
| 1289 | |
| 1290 | struct work_struct txpower_work; |
| 1291 | u32 disable_sens_cal; |
| 1292 | u32 disable_chain_noise_cal; |
| 1293 | u32 disable_tx_power_cal; |
| 1294 | struct work_struct run_time_calib_work; |
| 1295 | struct timer_list statistics_periodic; |
| 1296 | struct timer_list ucode_trace; |
| 1297 | struct timer_list watchdog; |
| 1298 | bool hw_ready; |
| 1299 | |
| 1300 | struct iwl_event_log event_log; |
| 1301 | |
| 1302 | struct led_classdev led; |
| 1303 | unsigned long blink_on, blink_off; |
| 1304 | bool led_registered; |
| 1305 | }; /*iwl_priv */ |
| 1306 | |
| 1307 | static inline void iwl_txq_ctx_activate(struct iwl_priv *priv, int txq_id) |
| 1308 | { |
| 1309 | set_bit(txq_id, &priv->txq_ctx_active_msk); |
| 1310 | } |
| 1311 | |
| 1312 | static inline void iwl_txq_ctx_deactivate(struct iwl_priv *priv, int txq_id) |
| 1313 | { |
| 1314 | clear_bit(txq_id, &priv->txq_ctx_active_msk); |
| 1315 | } |
| 1316 | |
| 1317 | #ifdef CONFIG_IWLWIFI_LEGACY_DEBUG |
| 1318 | /* |
| 1319 | * iwl_legacy_get_debug_level: Return active debug level for device |
| 1320 | * |
| 1321 | * Using sysfs it is possible to set per device debug level. This debug |
| 1322 | * level will be used if set, otherwise the global debug level which can be |
| 1323 | * set via module parameter is used. |
| 1324 | */ |
| 1325 | static inline u32 iwl_legacy_get_debug_level(struct iwl_priv *priv) |
| 1326 | { |
| 1327 | if (priv->debug_level) |
| 1328 | return priv->debug_level; |
| 1329 | else |
John W. Linville | ef33417 | 2011-02-25 15:51:01 -0500 | [diff] [blame] | 1330 | return iwlegacy_debug_level; |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 1331 | } |
| 1332 | #else |
| 1333 | static inline u32 iwl_legacy_get_debug_level(struct iwl_priv *priv) |
| 1334 | { |
John W. Linville | ef33417 | 2011-02-25 15:51:01 -0500 | [diff] [blame] | 1335 | return iwlegacy_debug_level; |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 1336 | } |
| 1337 | #endif |
| 1338 | |
| 1339 | |
| 1340 | static inline struct ieee80211_hdr * |
| 1341 | iwl_legacy_tx_queue_get_hdr(struct iwl_priv *priv, |
| 1342 | int txq_id, int idx) |
| 1343 | { |
| 1344 | if (priv->txq[txq_id].txb[idx].skb) |
| 1345 | return (struct ieee80211_hdr *)priv->txq[txq_id]. |
| 1346 | txb[idx].skb->data; |
| 1347 | return NULL; |
| 1348 | } |
| 1349 | |
| 1350 | static inline struct iwl_rxon_context * |
| 1351 | iwl_legacy_rxon_ctx_from_vif(struct ieee80211_vif *vif) |
| 1352 | { |
| 1353 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; |
| 1354 | |
| 1355 | return vif_priv->ctx; |
| 1356 | } |
| 1357 | |
| 1358 | #define for_each_context(priv, ctx) \ |
| 1359 | for (ctx = &priv->contexts[IWL_RXON_CTX_BSS]; \ |
| 1360 | ctx < &priv->contexts[NUM_IWL_RXON_CTX]; ctx++) \ |
| 1361 | if (priv->valid_contexts & BIT(ctx->ctxid)) |
| 1362 | |
| 1363 | static inline int iwl_legacy_is_associated(struct iwl_priv *priv, |
| 1364 | enum iwl_rxon_context_id ctxid) |
| 1365 | { |
| 1366 | return (priv->contexts[ctxid].active.filter_flags & |
| 1367 | RXON_FILTER_ASSOC_MSK) ? 1 : 0; |
| 1368 | } |
| 1369 | |
| 1370 | static inline int iwl_legacy_is_any_associated(struct iwl_priv *priv) |
| 1371 | { |
| 1372 | return iwl_legacy_is_associated(priv, IWL_RXON_CTX_BSS); |
| 1373 | } |
| 1374 | |
| 1375 | static inline int iwl_legacy_is_associated_ctx(struct iwl_rxon_context *ctx) |
| 1376 | { |
| 1377 | return (ctx->active.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0; |
| 1378 | } |
| 1379 | |
| 1380 | static inline int iwl_legacy_is_channel_valid(const struct iwl_channel_info *ch_info) |
| 1381 | { |
| 1382 | if (ch_info == NULL) |
| 1383 | return 0; |
| 1384 | return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0; |
| 1385 | } |
| 1386 | |
| 1387 | static inline int iwl_legacy_is_channel_radar(const struct iwl_channel_info *ch_info) |
| 1388 | { |
| 1389 | return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0; |
| 1390 | } |
| 1391 | |
| 1392 | static inline u8 iwl_legacy_is_channel_a_band(const struct iwl_channel_info *ch_info) |
| 1393 | { |
| 1394 | return ch_info->band == IEEE80211_BAND_5GHZ; |
| 1395 | } |
| 1396 | |
| 1397 | static inline int |
| 1398 | iwl_legacy_is_channel_passive(const struct iwl_channel_info *ch) |
| 1399 | { |
| 1400 | return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0; |
| 1401 | } |
| 1402 | |
Stanislaw Gruszka | eb85de3 | 2011-05-07 17:46:21 +0200 | [diff] [blame] | 1403 | static inline int |
| 1404 | iwl_legacy_is_channel_ibss(const struct iwl_channel_info *ch) |
| 1405 | { |
| 1406 | return (ch->flags & EEPROM_CHANNEL_IBSS) ? 1 : 0; |
| 1407 | } |
| 1408 | |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 1409 | static inline void |
| 1410 | __iwl_legacy_free_pages(struct iwl_priv *priv, struct page *page) |
| 1411 | { |
| 1412 | __free_pages(page, priv->hw_params.rx_page_order); |
| 1413 | priv->alloc_rxb_page--; |
| 1414 | } |
| 1415 | |
| 1416 | static inline void iwl_legacy_free_pages(struct iwl_priv *priv, unsigned long page) |
| 1417 | { |
| 1418 | free_pages(page, priv->hw_params.rx_page_order); |
| 1419 | priv->alloc_rxb_page--; |
| 1420 | } |
| 1421 | #endif /* __iwl_legacy_dev_h__ */ |