| 1 | /****************************************************************************** |
| 2 | * |
| 3 | * Copyright(c) 2003 - 2008 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 | * James P. Ketrenos <ipw2100-admin@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-4965.h) for driver implementation definitions. |
| 28 | * Please use iwl-4965-commands.h for uCode API definitions. |
| 29 | * Please use iwl-4965-hw.h for hardware-related definitions. |
| 30 | */ |
| 31 | |
| 32 | #ifndef __iwl_4965_h__ |
| 33 | #define __iwl_4965_h__ |
| 34 | |
| 35 | #include <linux/pci.h> /* for struct pci_device_id */ |
| 36 | #include <linux/kernel.h> |
| 37 | #include <net/ieee80211_radiotap.h> |
| 38 | |
| 39 | /* Hardware specific file defines the PCI IDs table for that hardware module */ |
| 40 | extern struct pci_device_id iwl4965_hw_card_ids[]; |
| 41 | |
| 42 | #define DRV_NAME "iwl4965" |
| 43 | #include "iwl-rfkill.h" |
| 44 | #include "iwl-eeprom.h" |
| 45 | #include "iwl-4965-hw.h" |
| 46 | #include "iwl-csr.h" |
| 47 | #include "iwl-prph.h" |
| 48 | #include "iwl-debug.h" |
| 49 | #include "iwl-led.h" |
| 50 | |
| 51 | /* Change firmware file name, using "-" and incrementing number, |
| 52 | * *only* when uCode interface or architecture changes so that it |
| 53 | * is not compatible with earlier drivers. |
| 54 | * This number will also appear in << 8 position of 1st dword of uCode file */ |
| 55 | #define IWL4965_UCODE_API "-1" |
| 56 | |
| 57 | |
| 58 | /* Default noise level to report when noise measurement is not available. |
| 59 | * This may be because we're: |
| 60 | * 1) Not associated (4965, no beacon statistics being sent to driver) |
| 61 | * 2) Scanning (noise measurement does not apply to associated channel) |
| 62 | * 3) Receiving CCK (3945 delivers noise info only for OFDM frames) |
| 63 | * Use default noise value of -127 ... this is below the range of measurable |
| 64 | * Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user. |
| 65 | * Also, -127 works better than 0 when averaging frames with/without |
| 66 | * noise info (e.g. averaging might be done in app); measured dBm values are |
| 67 | * always negative ... using a negative value as the default keeps all |
| 68 | * averages within an s8's (used in some apps) range of negative values. */ |
| 69 | #define IWL_NOISE_MEAS_NOT_AVAILABLE (-127) |
| 70 | |
| 71 | enum iwl4965_antenna { |
| 72 | IWL_ANTENNA_DIVERSITY, |
| 73 | IWL_ANTENNA_MAIN, |
| 74 | IWL_ANTENNA_AUX |
| 75 | }; |
| 76 | |
| 77 | /* |
| 78 | * RTS threshold here is total size [2347] minus 4 FCS bytes |
| 79 | * Per spec: |
| 80 | * a value of 0 means RTS on all data/management packets |
| 81 | * a value > max MSDU size means no RTS |
| 82 | * else RTS for data/management frames where MPDU is larger |
| 83 | * than RTS value. |
| 84 | */ |
| 85 | #define DEFAULT_RTS_THRESHOLD 2347U |
| 86 | #define MIN_RTS_THRESHOLD 0U |
| 87 | #define MAX_RTS_THRESHOLD 2347U |
| 88 | #define MAX_MSDU_SIZE 2304U |
| 89 | #define MAX_MPDU_SIZE 2346U |
| 90 | #define DEFAULT_BEACON_INTERVAL 100U |
| 91 | #define DEFAULT_SHORT_RETRY_LIMIT 7U |
| 92 | #define DEFAULT_LONG_RETRY_LIMIT 4U |
| 93 | |
| 94 | struct iwl4965_rx_mem_buffer { |
| 95 | dma_addr_t dma_addr; |
| 96 | struct sk_buff *skb; |
| 97 | struct list_head list; |
| 98 | }; |
| 99 | |
| 100 | /* |
| 101 | * Generic queue structure |
| 102 | * |
| 103 | * Contains common data for Rx and Tx queues |
| 104 | */ |
| 105 | struct iwl4965_queue { |
| 106 | int n_bd; /* number of BDs in this queue */ |
| 107 | int write_ptr; /* 1-st empty entry (index) host_w*/ |
| 108 | int read_ptr; /* last used entry (index) host_r*/ |
| 109 | dma_addr_t dma_addr; /* physical addr for BD's */ |
| 110 | int n_window; /* safe queue window */ |
| 111 | u32 id; |
| 112 | int low_mark; /* low watermark, resume queue if free |
| 113 | * space more than this */ |
| 114 | int high_mark; /* high watermark, stop queue if free |
| 115 | * space less than this */ |
| 116 | } __attribute__ ((packed)); |
| 117 | |
| 118 | #define MAX_NUM_OF_TBS (20) |
| 119 | |
| 120 | /* One for each TFD */ |
| 121 | struct iwl4965_tx_info { |
| 122 | struct ieee80211_tx_status status; |
| 123 | struct sk_buff *skb[MAX_NUM_OF_TBS]; |
| 124 | }; |
| 125 | |
| 126 | /** |
| 127 | * struct iwl4965_tx_queue - Tx Queue for DMA |
| 128 | * @q: generic Rx/Tx queue descriptor |
| 129 | * @bd: base of circular buffer of TFDs |
| 130 | * @cmd: array of command/Tx buffers |
| 131 | * @dma_addr_cmd: physical address of cmd/tx buffer array |
| 132 | * @txb: array of per-TFD driver data |
| 133 | * @need_update: indicates need to update read/write index |
| 134 | * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled |
| 135 | * |
| 136 | * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame |
| 137 | * descriptors) and required locking structures. |
| 138 | */ |
| 139 | struct iwl4965_tx_queue { |
| 140 | struct iwl4965_queue q; |
| 141 | struct iwl4965_tfd_frame *bd; |
| 142 | struct iwl_cmd *cmd; |
| 143 | dma_addr_t dma_addr_cmd; |
| 144 | struct iwl4965_tx_info *txb; |
| 145 | int need_update; |
| 146 | int sched_retry; |
| 147 | int active; |
| 148 | }; |
| 149 | |
| 150 | #define IWL_NUM_SCAN_RATES (2) |
| 151 | |
| 152 | struct iwl4965_channel_tgd_info { |
| 153 | u8 type; |
| 154 | s8 max_power; |
| 155 | }; |
| 156 | |
| 157 | struct iwl4965_channel_tgh_info { |
| 158 | s64 last_radar_time; |
| 159 | }; |
| 160 | |
| 161 | /* current Tx power values to use, one for each rate for each channel. |
| 162 | * requested power is limited by: |
| 163 | * -- regulatory EEPROM limits for this channel |
| 164 | * -- hardware capabilities (clip-powers) |
| 165 | * -- spectrum management |
| 166 | * -- user preference (e.g. iwconfig) |
| 167 | * when requested power is set, base power index must also be set. */ |
| 168 | struct iwl4965_channel_power_info { |
| 169 | struct iwl4965_tx_power tpc; /* actual radio and DSP gain settings */ |
| 170 | s8 power_table_index; /* actual (compenst'd) index into gain table */ |
| 171 | s8 base_power_index; /* gain index for power at factory temp. */ |
| 172 | s8 requested_power; /* power (dBm) requested for this chnl/rate */ |
| 173 | }; |
| 174 | |
| 175 | /* current scan Tx power values to use, one for each scan rate for each |
| 176 | * channel. */ |
| 177 | struct iwl4965_scan_power_info { |
| 178 | struct iwl4965_tx_power tpc; /* actual radio and DSP gain settings */ |
| 179 | s8 power_table_index; /* actual (compenst'd) index into gain table */ |
| 180 | s8 requested_power; /* scan pwr (dBm) requested for chnl/rate */ |
| 181 | }; |
| 182 | |
| 183 | /* For fat_extension_channel */ |
| 184 | enum { |
| 185 | HT_IE_EXT_CHANNEL_NONE = 0, |
| 186 | HT_IE_EXT_CHANNEL_ABOVE, |
| 187 | HT_IE_EXT_CHANNEL_INVALID, |
| 188 | HT_IE_EXT_CHANNEL_BELOW, |
| 189 | HT_IE_EXT_CHANNEL_MAX |
| 190 | }; |
| 191 | |
| 192 | /* |
| 193 | * One for each channel, holds all channel setup data |
| 194 | * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant |
| 195 | * with one another! |
| 196 | */ |
| 197 | #define IWL4965_MAX_RATE (33) |
| 198 | |
| 199 | struct iwl_channel_info { |
| 200 | struct iwl4965_channel_tgd_info tgd; |
| 201 | struct iwl4965_channel_tgh_info tgh; |
| 202 | struct iwl4965_eeprom_channel eeprom; /* EEPROM regulatory limit */ |
| 203 | struct iwl4965_eeprom_channel fat_eeprom; /* EEPROM regulatory limit for |
| 204 | * FAT channel */ |
| 205 | |
| 206 | u8 channel; /* channel number */ |
| 207 | u8 flags; /* flags copied from EEPROM */ |
| 208 | s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */ |
| 209 | s8 curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) limit */ |
| 210 | s8 min_power; /* always 0 */ |
| 211 | s8 scan_power; /* (dBm) regul. eeprom, direct scans, any rate */ |
| 212 | |
| 213 | u8 group_index; /* 0-4, maps channel to group1/2/3/4/5 */ |
| 214 | u8 band_index; /* 0-4, maps channel to band1/2/3/4/5 */ |
| 215 | enum ieee80211_band band; |
| 216 | |
| 217 | /* Radio/DSP gain settings for each "normal" data Tx rate. |
| 218 | * These include, in addition to RF and DSP gain, a few fields for |
| 219 | * remembering/modifying gain settings (indexes). */ |
| 220 | struct iwl4965_channel_power_info power_info[IWL4965_MAX_RATE]; |
| 221 | |
| 222 | /* FAT channel info */ |
| 223 | s8 fat_max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */ |
| 224 | s8 fat_curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) */ |
| 225 | s8 fat_min_power; /* always 0 */ |
| 226 | s8 fat_scan_power; /* (dBm) eeprom, direct scans, any rate */ |
| 227 | u8 fat_flags; /* flags copied from EEPROM */ |
| 228 | u8 fat_extension_channel; /* HT_IE_EXT_CHANNEL_* */ |
| 229 | |
| 230 | /* Radio/DSP gain settings for each scan rate, for directed scans. */ |
| 231 | struct iwl4965_scan_power_info scan_pwr_info[IWL_NUM_SCAN_RATES]; |
| 232 | }; |
| 233 | |
| 234 | struct iwl4965_clip_group { |
| 235 | /* maximum power level to prevent clipping for each rate, derived by |
| 236 | * us from this band's saturation power in EEPROM */ |
| 237 | const s8 clip_powers[IWL_MAX_RATES]; |
| 238 | }; |
| 239 | |
| 240 | #include "iwl-4965-rs.h" |
| 241 | |
| 242 | #define IWL_TX_FIFO_AC0 0 |
| 243 | #define IWL_TX_FIFO_AC1 1 |
| 244 | #define IWL_TX_FIFO_AC2 2 |
| 245 | #define IWL_TX_FIFO_AC3 3 |
| 246 | #define IWL_TX_FIFO_HCCA_1 5 |
| 247 | #define IWL_TX_FIFO_HCCA_2 6 |
| 248 | #define IWL_TX_FIFO_NONE 7 |
| 249 | |
| 250 | /* Minimum number of queues. MAX_NUM is defined in hw specific files */ |
| 251 | #define IWL_MIN_NUM_QUEUES 4 |
| 252 | |
| 253 | /* Power management (not Tx power) structures */ |
| 254 | |
| 255 | struct iwl4965_power_vec_entry { |
| 256 | struct iwl4965_powertable_cmd cmd; |
| 257 | u8 no_dtim; |
| 258 | }; |
| 259 | #define IWL_POWER_RANGE_0 (0) |
| 260 | #define IWL_POWER_RANGE_1 (1) |
| 261 | |
| 262 | #define IWL_POWER_MODE_CAM 0x00 /* Continuously Aware Mode, always on */ |
| 263 | #define IWL_POWER_INDEX_3 0x03 |
| 264 | #define IWL_POWER_INDEX_5 0x05 |
| 265 | #define IWL_POWER_AC 0x06 |
| 266 | #define IWL_POWER_BATTERY 0x07 |
| 267 | #define IWL_POWER_LIMIT 0x07 |
| 268 | #define IWL_POWER_MASK 0x0F |
| 269 | #define IWL_POWER_ENABLED 0x10 |
| 270 | #define IWL_POWER_LEVEL(x) ((x) & IWL_POWER_MASK) |
| 271 | |
| 272 | struct iwl4965_power_mgr { |
| 273 | spinlock_t lock; |
| 274 | struct iwl4965_power_vec_entry pwr_range_0[IWL_POWER_AC]; |
| 275 | struct iwl4965_power_vec_entry pwr_range_1[IWL_POWER_AC]; |
| 276 | u8 active_index; |
| 277 | u32 dtim_val; |
| 278 | }; |
| 279 | |
| 280 | #define IEEE80211_DATA_LEN 2304 |
| 281 | #define IEEE80211_4ADDR_LEN 30 |
| 282 | #define IEEE80211_HLEN (IEEE80211_4ADDR_LEN) |
| 283 | #define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN) |
| 284 | |
| 285 | struct iwl4965_frame { |
| 286 | union { |
| 287 | struct ieee80211_hdr frame; |
| 288 | struct iwl4965_tx_beacon_cmd beacon; |
| 289 | u8 raw[IEEE80211_FRAME_LEN]; |
| 290 | u8 cmd[360]; |
| 291 | } u; |
| 292 | struct list_head list; |
| 293 | }; |
| 294 | |
| 295 | #define SEQ_TO_QUEUE(x) ((x >> 8) & 0xbf) |
| 296 | #define QUEUE_TO_SEQ(x) ((x & 0xbf) << 8) |
| 297 | #define SEQ_TO_INDEX(x) ((u8)(x & 0xff)) |
| 298 | #define INDEX_TO_SEQ(x) ((u8)(x & 0xff)) |
| 299 | #define SEQ_HUGE_FRAME (0x4000) |
| 300 | #define SEQ_RX_FRAME __constant_cpu_to_le16(0x8000) |
| 301 | #define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4) |
| 302 | #define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ) |
| 303 | #define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4) |
| 304 | |
| 305 | enum { |
| 306 | /* CMD_SIZE_NORMAL = 0, */ |
| 307 | CMD_SIZE_HUGE = (1 << 0), |
| 308 | /* CMD_SYNC = 0, */ |
| 309 | CMD_ASYNC = (1 << 1), |
| 310 | /* CMD_NO_SKB = 0, */ |
| 311 | CMD_WANT_SKB = (1 << 2), |
| 312 | }; |
| 313 | |
| 314 | struct iwl_cmd; |
| 315 | struct iwl_priv; |
| 316 | |
| 317 | struct iwl_cmd_meta { |
| 318 | struct iwl_cmd_meta *source; |
| 319 | union { |
| 320 | struct sk_buff *skb; |
| 321 | int (*callback)(struct iwl_priv *priv, |
| 322 | struct iwl_cmd *cmd, struct sk_buff *skb); |
| 323 | } __attribute__ ((packed)) u; |
| 324 | |
| 325 | /* The CMD_SIZE_HUGE flag bit indicates that the command |
| 326 | * structure is stored at the end of the shared queue memory. */ |
| 327 | u32 flags; |
| 328 | |
| 329 | } __attribute__ ((packed)); |
| 330 | |
| 331 | /** |
| 332 | * struct iwl_cmd |
| 333 | * |
| 334 | * For allocation of the command and tx queues, this establishes the overall |
| 335 | * size of the largest command we send to uCode, except for a scan command |
| 336 | * (which is relatively huge; space is allocated separately). |
| 337 | */ |
| 338 | struct iwl_cmd { |
| 339 | struct iwl_cmd_meta meta; /* driver data */ |
| 340 | struct iwl_cmd_header hdr; /* uCode API */ |
| 341 | union { |
| 342 | struct iwl4965_addsta_cmd addsta; |
| 343 | struct iwl4965_led_cmd led; |
| 344 | u32 flags; |
| 345 | u8 val8; |
| 346 | u16 val16; |
| 347 | u32 val32; |
| 348 | struct iwl4965_bt_cmd bt; |
| 349 | struct iwl4965_rxon_time_cmd rxon_time; |
| 350 | struct iwl4965_powertable_cmd powertable; |
| 351 | struct iwl4965_qosparam_cmd qosparam; |
| 352 | struct iwl4965_tx_cmd tx; |
| 353 | struct iwl4965_tx_beacon_cmd tx_beacon; |
| 354 | struct iwl4965_rxon_assoc_cmd rxon_assoc; |
| 355 | u8 *indirect; |
| 356 | u8 payload[360]; |
| 357 | } __attribute__ ((packed)) cmd; |
| 358 | } __attribute__ ((packed)); |
| 359 | |
| 360 | struct iwl_host_cmd { |
| 361 | u8 id; |
| 362 | u16 len; |
| 363 | struct iwl_cmd_meta meta; |
| 364 | const void *data; |
| 365 | }; |
| 366 | |
| 367 | #define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_cmd) - \ |
| 368 | sizeof(struct iwl_cmd_meta)) |
| 369 | |
| 370 | /* |
| 371 | * RX related structures and functions |
| 372 | */ |
| 373 | #define RX_FREE_BUFFERS 64 |
| 374 | #define RX_LOW_WATERMARK 8 |
| 375 | |
| 376 | #define SUP_RATE_11A_MAX_NUM_CHANNELS 8 |
| 377 | #define SUP_RATE_11B_MAX_NUM_CHANNELS 4 |
| 378 | #define SUP_RATE_11G_MAX_NUM_CHANNELS 12 |
| 379 | |
| 380 | /** |
| 381 | * struct iwl4965_rx_queue - Rx queue |
| 382 | * @processed: Internal index to last handled Rx packet |
| 383 | * @read: Shared index to newest available Rx buffer |
| 384 | * @write: Shared index to oldest written Rx packet |
| 385 | * @free_count: Number of pre-allocated buffers in rx_free |
| 386 | * @rx_free: list of free SKBs for use |
| 387 | * @rx_used: List of Rx buffers with no SKB |
| 388 | * @need_update: flag to indicate we need to update read/write index |
| 389 | * |
| 390 | * NOTE: rx_free and rx_used are used as a FIFO for iwl4965_rx_mem_buffers |
| 391 | */ |
| 392 | struct iwl4965_rx_queue { |
| 393 | __le32 *bd; |
| 394 | dma_addr_t dma_addr; |
| 395 | struct iwl4965_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS]; |
| 396 | struct iwl4965_rx_mem_buffer *queue[RX_QUEUE_SIZE]; |
| 397 | u32 processed; |
| 398 | u32 read; |
| 399 | u32 write; |
| 400 | u32 free_count; |
| 401 | struct list_head rx_free; |
| 402 | struct list_head rx_used; |
| 403 | int need_update; |
| 404 | spinlock_t lock; |
| 405 | }; |
| 406 | |
| 407 | #define IWL_SUPPORTED_RATES_IE_LEN 8 |
| 408 | |
| 409 | #define SCAN_INTERVAL 100 |
| 410 | |
| 411 | #define MAX_A_CHANNELS 252 |
| 412 | #define MIN_A_CHANNELS 7 |
| 413 | |
| 414 | #define MAX_B_CHANNELS 14 |
| 415 | #define MIN_B_CHANNELS 1 |
| 416 | |
| 417 | #define MAX_TID_COUNT 9 |
| 418 | |
| 419 | #define IWL_INVALID_RATE 0xFF |
| 420 | #define IWL_INVALID_VALUE -1 |
| 421 | |
| 422 | #ifdef CONFIG_IWL4965_HT |
| 423 | /** |
| 424 | * struct iwl4965_ht_agg -- aggregation status while waiting for block-ack |
| 425 | * @txq_id: Tx queue used for Tx attempt |
| 426 | * @frame_count: # frames attempted by Tx command |
| 427 | * @wait_for_ba: Expect block-ack before next Tx reply |
| 428 | * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window |
| 429 | * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window |
| 430 | * @bitmap1: High order, one bit for each frame pending ACK in Tx window |
| 431 | * @rate_n_flags: Rate at which Tx was attempted |
| 432 | * |
| 433 | * If REPLY_TX indicates that aggregation was attempted, driver must wait |
| 434 | * for block ack (REPLY_COMPRESSED_BA). This struct stores tx reply info |
| 435 | * until block ack arrives. |
| 436 | */ |
| 437 | struct iwl4965_ht_agg { |
| 438 | u16 txq_id; |
| 439 | u16 frame_count; |
| 440 | u16 wait_for_ba; |
| 441 | u16 start_idx; |
| 442 | u64 bitmap; |
| 443 | u32 rate_n_flags; |
| 444 | #define IWL_AGG_OFF 0 |
| 445 | #define IWL_AGG_ON 1 |
| 446 | #define IWL_EMPTYING_HW_QUEUE_ADDBA 2 |
| 447 | #define IWL_EMPTYING_HW_QUEUE_DELBA 3 |
| 448 | u8 state; |
| 449 | }; |
| 450 | |
| 451 | #endif /* CONFIG_IWL4965_HT */ |
| 452 | |
| 453 | struct iwl4965_tid_data { |
| 454 | u16 seq_number; |
| 455 | u16 tfds_in_queue; |
| 456 | #ifdef CONFIG_IWL4965_HT |
| 457 | struct iwl4965_ht_agg agg; |
| 458 | #endif /* CONFIG_IWL4965_HT */ |
| 459 | }; |
| 460 | |
| 461 | struct iwl4965_hw_key { |
| 462 | enum ieee80211_key_alg alg; |
| 463 | int keylen; |
| 464 | u8 keyidx; |
| 465 | struct ieee80211_key_conf *conf; |
| 466 | u8 key[32]; |
| 467 | }; |
| 468 | |
| 469 | union iwl4965_ht_rate_supp { |
| 470 | u16 rates; |
| 471 | struct { |
| 472 | u8 siso_rate; |
| 473 | u8 mimo_rate; |
| 474 | }; |
| 475 | }; |
| 476 | |
| 477 | #ifdef CONFIG_IWL4965_HT |
| 478 | #define CFG_HT_RX_AMPDU_FACTOR_DEF (0x3) |
| 479 | #define CFG_HT_MPDU_DENSITY_2USEC (0x5) |
| 480 | #define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_2USEC |
| 481 | |
| 482 | struct iwl_ht_info { |
| 483 | /* self configuration data */ |
| 484 | u8 is_ht; |
| 485 | u8 supported_chan_width; |
| 486 | u16 tx_mimo_ps_mode; |
| 487 | u8 is_green_field; |
| 488 | u8 sgf; /* HT_SHORT_GI_* short guard interval */ |
| 489 | u8 max_amsdu_size; |
| 490 | u8 ampdu_factor; |
| 491 | u8 mpdu_density; |
| 492 | u8 supp_mcs_set[16]; |
| 493 | /* BSS related data */ |
| 494 | u8 control_channel; |
| 495 | u8 extension_chan_offset; |
| 496 | u8 tx_chan_width; |
| 497 | u8 ht_protection; |
| 498 | u8 non_GF_STA_present; |
| 499 | }; |
| 500 | #endif /*CONFIG_IWL4965_HT */ |
| 501 | |
| 502 | union iwl4965_qos_capabity { |
| 503 | struct { |
| 504 | u8 edca_count:4; /* bit 0-3 */ |
| 505 | u8 q_ack:1; /* bit 4 */ |
| 506 | u8 queue_request:1; /* bit 5 */ |
| 507 | u8 txop_request:1; /* bit 6 */ |
| 508 | u8 reserved:1; /* bit 7 */ |
| 509 | } q_AP; |
| 510 | struct { |
| 511 | u8 acvo_APSD:1; /* bit 0 */ |
| 512 | u8 acvi_APSD:1; /* bit 1 */ |
| 513 | u8 ac_bk_APSD:1; /* bit 2 */ |
| 514 | u8 ac_be_APSD:1; /* bit 3 */ |
| 515 | u8 q_ack:1; /* bit 4 */ |
| 516 | u8 max_len:2; /* bit 5-6 */ |
| 517 | u8 more_data_ack:1; /* bit 7 */ |
| 518 | } q_STA; |
| 519 | u8 val; |
| 520 | }; |
| 521 | |
| 522 | /* QoS structures */ |
| 523 | struct iwl4965_qos_info { |
| 524 | int qos_enable; |
| 525 | int qos_active; |
| 526 | union iwl4965_qos_capabity qos_cap; |
| 527 | struct iwl4965_qosparam_cmd def_qos_parm; |
| 528 | }; |
| 529 | |
| 530 | #define STA_PS_STATUS_WAKE 0 |
| 531 | #define STA_PS_STATUS_SLEEP 1 |
| 532 | |
| 533 | struct iwl4965_station_entry { |
| 534 | struct iwl4965_addsta_cmd sta; |
| 535 | struct iwl4965_tid_data tid[MAX_TID_COUNT]; |
| 536 | u8 used; |
| 537 | u8 ps_status; |
| 538 | struct iwl4965_hw_key keyinfo; |
| 539 | }; |
| 540 | |
| 541 | /* one for each uCode image (inst/data, boot/init/runtime) */ |
| 542 | struct fw_desc { |
| 543 | void *v_addr; /* access by driver */ |
| 544 | dma_addr_t p_addr; /* access by card's busmaster DMA */ |
| 545 | u32 len; /* bytes */ |
| 546 | }; |
| 547 | |
| 548 | /* uCode file layout */ |
| 549 | struct iwl4965_ucode { |
| 550 | __le32 ver; /* major/minor/subminor */ |
| 551 | __le32 inst_size; /* bytes of runtime instructions */ |
| 552 | __le32 data_size; /* bytes of runtime data */ |
| 553 | __le32 init_size; /* bytes of initialization instructions */ |
| 554 | __le32 init_data_size; /* bytes of initialization data */ |
| 555 | __le32 boot_size; /* bytes of bootstrap instructions */ |
| 556 | u8 data[0]; /* data in same order as "size" elements */ |
| 557 | }; |
| 558 | |
| 559 | #define IWL_IBSS_MAC_HASH_SIZE 32 |
| 560 | |
| 561 | struct iwl4965_ibss_seq { |
| 562 | u8 mac[ETH_ALEN]; |
| 563 | u16 seq_num; |
| 564 | u16 frag_num; |
| 565 | unsigned long packet_time; |
| 566 | struct list_head list; |
| 567 | }; |
| 568 | |
| 569 | /** |
| 570 | * struct iwl_hw_params |
| 571 | * @max_txq_num: Max # Tx queues supported |
| 572 | * @tx_cmd_len: Size of Tx command (but not including frame itself) |
| 573 | * @tx_ant_num: Number of TX antennas |
| 574 | * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2) |
| 575 | * @rx_buffer_size: |
| 576 | * @max_rxq_log: Log-base-2 of max_rxq_size |
| 577 | * @max_stations: |
| 578 | * @bcast_sta_id: |
| 579 | */ |
| 580 | struct iwl_hw_params { |
| 581 | u16 max_txq_num; |
| 582 | u16 tx_cmd_len; |
| 583 | u8 tx_chains_num; |
| 584 | u8 rx_chains_num; |
| 585 | u8 valid_tx_ant; |
| 586 | u8 valid_rx_ant; |
| 587 | u16 max_rxq_size; |
| 588 | u16 max_rxq_log; |
| 589 | u32 rx_buf_size; |
| 590 | u32 max_pkt_size; |
| 591 | u8 max_stations; |
| 592 | u8 bcast_sta_id; |
| 593 | }; |
| 594 | |
| 595 | #define HT_SHORT_GI_20MHZ_ONLY (1 << 0) |
| 596 | #define HT_SHORT_GI_40MHZ_ONLY (1 << 1) |
| 597 | |
| 598 | |
| 599 | #define IWL_RX_HDR(x) ((struct iwl4965_rx_frame_hdr *)(\ |
| 600 | x->u.rx_frame.stats.payload + \ |
| 601 | x->u.rx_frame.stats.phy_count)) |
| 602 | #define IWL_RX_END(x) ((struct iwl4965_rx_frame_end *)(\ |
| 603 | IWL_RX_HDR(x)->payload + \ |
| 604 | le16_to_cpu(IWL_RX_HDR(x)->len))) |
| 605 | #define IWL_RX_STATS(x) (&x->u.rx_frame.stats) |
| 606 | #define IWL_RX_DATA(x) (IWL_RX_HDR(x)->payload) |
| 607 | |
| 608 | |
| 609 | /****************************************************************************** |
| 610 | * |
| 611 | * Functions implemented in iwl-base.c which are forward declared here |
| 612 | * for use by iwl-*.c |
| 613 | * |
| 614 | *****************************************************************************/ |
| 615 | struct iwl4965_addsta_cmd; |
| 616 | extern int iwl4965_send_add_station(struct iwl_priv *priv, |
| 617 | struct iwl4965_addsta_cmd *sta, u8 flags); |
| 618 | extern u8 iwl4965_add_station_flags(struct iwl_priv *priv, const u8 *addr, |
| 619 | int is_ap, u8 flags, void *ht_data); |
| 620 | extern int iwl4965_is_network_packet(struct iwl_priv *priv, |
| 621 | struct ieee80211_hdr *header); |
| 622 | extern int iwl4965_power_init_handle(struct iwl_priv *priv); |
| 623 | extern void iwl4965_handle_data_packet_monitor(struct iwl_priv *priv, |
| 624 | struct iwl4965_rx_mem_buffer *rxb, |
| 625 | void *data, short len, |
| 626 | struct ieee80211_rx_status *stats, |
| 627 | u16 phy_flags); |
| 628 | extern int iwl4965_is_duplicate_packet(struct iwl_priv *priv, |
| 629 | struct ieee80211_hdr *header); |
| 630 | extern int iwl4965_rx_queue_alloc(struct iwl_priv *priv); |
| 631 | extern void iwl4965_rx_queue_reset(struct iwl_priv *priv, |
| 632 | struct iwl4965_rx_queue *rxq); |
| 633 | extern int iwl4965_calc_db_from_ratio(int sig_ratio); |
| 634 | extern int iwl4965_calc_sig_qual(int rssi_dbm, int noise_dbm); |
| 635 | extern int iwl4965_tx_queue_init(struct iwl_priv *priv, |
| 636 | struct iwl4965_tx_queue *txq, int count, u32 id); |
| 637 | extern void iwl4965_rx_replenish(void *data); |
| 638 | extern void iwl4965_tx_queue_free(struct iwl_priv *priv, struct iwl4965_tx_queue *txq); |
| 639 | extern unsigned int iwl4965_fill_beacon_frame(struct iwl_priv *priv, |
| 640 | struct ieee80211_hdr *hdr, |
| 641 | const u8 *dest, int left); |
| 642 | extern int iwl4965_rx_queue_update_write_ptr(struct iwl_priv *priv, |
| 643 | struct iwl4965_rx_queue *q); |
| 644 | extern void iwl4965_set_decrypted_flag(struct iwl_priv *priv, struct sk_buff *skb, |
| 645 | u32 decrypt_res, |
| 646 | struct ieee80211_rx_status *stats); |
| 647 | extern __le16 *ieee80211_get_qos_ctrl(struct ieee80211_hdr *hdr); |
| 648 | int iwl4965_init_geos(struct iwl_priv *priv); |
| 649 | void iwl4965_free_geos(struct iwl_priv *priv); |
| 650 | |
| 651 | extern const u8 iwl4965_broadcast_addr[ETH_ALEN]; |
| 652 | int iwl4965_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd); |
| 653 | |
| 654 | /* |
| 655 | * Currently used by iwl-3945-rs... look at restructuring so that it doesn't |
| 656 | * call this... todo... fix that. |
| 657 | */ |
| 658 | extern u8 iwl4965_sync_station(struct iwl_priv *priv, int sta_id, |
| 659 | u16 tx_rate, u8 flags); |
| 660 | |
| 661 | /****************************************************************************** |
| 662 | * |
| 663 | * Functions implemented in iwl-[34]*.c which are forward declared here |
| 664 | * for use by iwl-base.c |
| 665 | * |
| 666 | * NOTE: The implementation of these functions are hardware specific |
| 667 | * which is why they are in the hardware specific files (vs. iwl-base.c) |
| 668 | * |
| 669 | * Naming convention -- |
| 670 | * iwl4965_ <-- Its part of iwlwifi (should be changed to iwl4965_) |
| 671 | * iwl4965_hw_ <-- Hardware specific (implemented in iwl-XXXX.c by all HW) |
| 672 | * iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX) |
| 673 | * iwl4965_bg_ <-- Called from work queue context |
| 674 | * iwl4965_mac_ <-- mac80211 callback |
| 675 | * |
| 676 | ****************************************************************************/ |
| 677 | extern void iwl4965_hw_rx_handler_setup(struct iwl_priv *priv); |
| 678 | extern void iwl4965_hw_setup_deferred_work(struct iwl_priv *priv); |
| 679 | extern void iwl4965_hw_cancel_deferred_work(struct iwl_priv *priv); |
| 680 | extern int iwl4965_hw_rxq_stop(struct iwl_priv *priv); |
| 681 | extern int iwl4965_hw_set_hw_params(struct iwl_priv *priv); |
| 682 | extern int iwl4965_hw_nic_init(struct iwl_priv *priv); |
| 683 | extern int iwl4965_hw_nic_stop_master(struct iwl_priv *priv); |
| 684 | extern void iwl4965_hw_txq_ctx_free(struct iwl_priv *priv); |
| 685 | extern void iwl4965_hw_txq_ctx_stop(struct iwl_priv *priv); |
| 686 | extern int iwl4965_hw_nic_reset(struct iwl_priv *priv); |
| 687 | extern int iwl4965_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv, void *tfd, |
| 688 | dma_addr_t addr, u16 len); |
| 689 | extern int iwl4965_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl4965_tx_queue *txq); |
| 690 | extern int iwl4965_hw_get_temperature(struct iwl_priv *priv); |
| 691 | extern int iwl4965_hw_tx_queue_init(struct iwl_priv *priv, |
| 692 | struct iwl4965_tx_queue *txq); |
| 693 | extern unsigned int iwl4965_hw_get_beacon_cmd(struct iwl_priv *priv, |
| 694 | struct iwl4965_frame *frame, u8 rate); |
| 695 | extern int iwl4965_hw_get_rx_read(struct iwl_priv *priv); |
| 696 | extern void iwl4965_hw_build_tx_cmd_rate(struct iwl_priv *priv, |
| 697 | struct iwl_cmd *cmd, |
| 698 | struct ieee80211_tx_control *ctrl, |
| 699 | struct ieee80211_hdr *hdr, |
| 700 | int sta_id, int tx_id); |
| 701 | extern int iwl4965_hw_reg_send_txpower(struct iwl_priv *priv); |
| 702 | extern int iwl4965_hw_reg_set_txpower(struct iwl_priv *priv, s8 power); |
| 703 | extern void iwl4965_hw_rx_statistics(struct iwl_priv *priv, |
| 704 | struct iwl4965_rx_mem_buffer *rxb); |
| 705 | extern void iwl4965_disable_events(struct iwl_priv *priv); |
| 706 | extern int iwl4965_get_temperature(const struct iwl_priv *priv); |
| 707 | |
| 708 | /** |
| 709 | * iwl4965_hw_find_station - Find station id for a given BSSID |
| 710 | * @bssid: MAC address of station ID to find |
| 711 | * |
| 712 | * NOTE: This should not be hardware specific but the code has |
| 713 | * not yet been merged into a single common layer for managing the |
| 714 | * station tables. |
| 715 | */ |
| 716 | extern u8 iwl4965_hw_find_station(struct iwl_priv *priv, const u8 *bssid); |
| 717 | |
| 718 | extern int iwl4965_hw_channel_switch(struct iwl_priv *priv, u16 channel); |
| 719 | extern int iwl4965_tx_queue_reclaim(struct iwl_priv *priv, int txq_id, int index); |
| 720 | extern int iwl4965_queue_space(const struct iwl4965_queue *q); |
| 721 | struct iwl_priv; |
| 722 | |
| 723 | extern void iwl4965_radio_kill_sw(struct iwl_priv *priv, int disable_radio); |
| 724 | /* |
| 725 | * Forward declare iwl-4965.c functions for iwl-base.c |
| 726 | */ |
| 727 | extern int iwl4965_tx_queue_update_wr_ptr(struct iwl_priv *priv, |
| 728 | struct iwl4965_tx_queue *txq, |
| 729 | u16 byte_cnt); |
| 730 | extern void iwl4965_add_station(struct iwl_priv *priv, const u8 *addr, |
| 731 | int is_ap); |
| 732 | extern void iwl4965_set_rxon_chain(struct iwl_priv *priv); |
| 733 | extern int iwl4965_alive_notify(struct iwl_priv *priv); |
| 734 | extern void iwl4965_update_rate_scaling(struct iwl_priv *priv, u8 mode); |
| 735 | extern void iwl4965_chain_noise_reset(struct iwl_priv *priv); |
| 736 | extern void iwl4965_init_sensitivity(struct iwl_priv *priv, u8 flags, |
| 737 | u8 force); |
| 738 | extern void iwl4965_rf_kill_ct_config(struct iwl_priv *priv); |
| 739 | extern void iwl4965_hwrate_to_tx_control(struct iwl_priv *priv, |
| 740 | u32 rate_n_flags, |
| 741 | struct ieee80211_tx_control *control); |
| 742 | |
| 743 | #ifdef CONFIG_IWL4965_HT |
| 744 | void iwl4965_init_ht_hw_capab(struct iwl_priv *priv, |
| 745 | struct ieee80211_ht_info *ht_info, |
| 746 | enum ieee80211_band band); |
| 747 | void iwl4965_set_rxon_ht(struct iwl_priv *priv, |
| 748 | struct iwl_ht_info *ht_info); |
| 749 | void iwl4965_set_ht_add_station(struct iwl_priv *priv, u8 index, |
| 750 | struct ieee80211_ht_info *sta_ht_inf); |
| 751 | int iwl4965_mac_ampdu_action(struct ieee80211_hw *hw, |
| 752 | enum ieee80211_ampdu_mlme_action action, |
| 753 | const u8 *addr, u16 tid, u16 *ssn); |
| 754 | int iwl4965_check_empty_hw_queue(struct iwl_priv *priv, int sta_id, |
| 755 | u8 tid, int txq_id); |
| 756 | #else |
| 757 | static inline void iwl4965_init_ht_hw_capab(struct iwl_priv *priv, |
| 758 | struct ieee80211_ht_info *ht_info, |
| 759 | enum ieee80211_band band) {} |
| 760 | |
| 761 | #endif /*CONFIG_IWL4965_HT */ |
| 762 | /* Structures, enum, and defines specific to the 4965 */ |
| 763 | |
| 764 | #define IWL4965_KW_SIZE 0x1000 /*4k */ |
| 765 | |
| 766 | struct iwl4965_kw { |
| 767 | dma_addr_t dma_addr; |
| 768 | void *v_addr; |
| 769 | size_t size; |
| 770 | }; |
| 771 | |
| 772 | #define IWL_CHANNEL_WIDTH_20MHZ 0 |
| 773 | #define IWL_CHANNEL_WIDTH_40MHZ 1 |
| 774 | |
| 775 | #define IWL_MIMO_PS_STATIC 0 |
| 776 | #define IWL_MIMO_PS_NONE 3 |
| 777 | #define IWL_MIMO_PS_DYNAMIC 1 |
| 778 | #define IWL_MIMO_PS_INVALID 2 |
| 779 | |
| 780 | #define IWL_OPERATION_MODE_AUTO 0 |
| 781 | #define IWL_OPERATION_MODE_HT_ONLY 1 |
| 782 | #define IWL_OPERATION_MODE_MIXED 2 |
| 783 | #define IWL_OPERATION_MODE_20MHZ 3 |
| 784 | |
| 785 | #define IWL_EXT_CHANNEL_OFFSET_NONE 0 |
| 786 | #define IWL_EXT_CHANNEL_OFFSET_ABOVE 1 |
| 787 | #define IWL_EXT_CHANNEL_OFFSET_RESERVE1 2 |
| 788 | #define IWL_EXT_CHANNEL_OFFSET_BELOW 3 |
| 789 | |
| 790 | #define NRG_NUM_PREV_STAT_L 20 |
| 791 | #define NUM_RX_CHAINS (3) |
| 792 | |
| 793 | #define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000 |
| 794 | |
| 795 | struct iwl4965_lq_mngr { |
| 796 | spinlock_t lock; |
| 797 | s32 max_window_size; |
| 798 | s32 *expected_tpt; |
| 799 | u8 *next_higher_rate; |
| 800 | u8 *next_lower_rate; |
| 801 | unsigned long stamp; |
| 802 | unsigned long stamp_last; |
| 803 | u32 flush_time; |
| 804 | u32 tx_packets; |
| 805 | u8 lq_ready; |
| 806 | }; |
| 807 | |
| 808 | /* Sensitivity and chain noise calibration */ |
| 809 | #define INTERFERENCE_DATA_AVAILABLE __constant_cpu_to_le32(1) |
| 810 | #define INITIALIZATION_VALUE 0xFFFF |
| 811 | #define CAL_NUM_OF_BEACONS 20 |
| 812 | #define MAXIMUM_ALLOWED_PATHLOSS 15 |
| 813 | |
| 814 | #define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3 |
| 815 | |
| 816 | #define MAX_FA_OFDM 50 |
| 817 | #define MIN_FA_OFDM 5 |
| 818 | #define MAX_FA_CCK 50 |
| 819 | #define MIN_FA_CCK 5 |
| 820 | |
| 821 | #define NRG_MIN_CCK 97 |
| 822 | #define NRG_MAX_CCK 0 |
| 823 | |
| 824 | #define AUTO_CORR_MIN_OFDM 85 |
| 825 | #define AUTO_CORR_MIN_OFDM_MRC 170 |
| 826 | #define AUTO_CORR_MIN_OFDM_X1 105 |
| 827 | #define AUTO_CORR_MIN_OFDM_MRC_X1 220 |
| 828 | #define AUTO_CORR_MAX_OFDM 120 |
| 829 | #define AUTO_CORR_MAX_OFDM_MRC 210 |
| 830 | #define AUTO_CORR_MAX_OFDM_X1 140 |
| 831 | #define AUTO_CORR_MAX_OFDM_MRC_X1 270 |
| 832 | #define AUTO_CORR_STEP_OFDM 1 |
| 833 | |
| 834 | #define AUTO_CORR_MIN_CCK (125) |
| 835 | #define AUTO_CORR_MAX_CCK (200) |
| 836 | #define AUTO_CORR_MIN_CCK_MRC 200 |
| 837 | #define AUTO_CORR_MAX_CCK_MRC 400 |
| 838 | #define AUTO_CORR_STEP_CCK 3 |
| 839 | #define AUTO_CORR_MAX_TH_CCK 160 |
| 840 | |
| 841 | #define NRG_DIFF 2 |
| 842 | #define NRG_STEP_CCK 2 |
| 843 | #define NRG_MARGIN 8 |
| 844 | #define MAX_NUMBER_CCK_NO_FA 100 |
| 845 | |
| 846 | #define AUTO_CORR_CCK_MIN_VAL_DEF (125) |
| 847 | |
| 848 | #define CHAIN_A 0 |
| 849 | #define CHAIN_B 1 |
| 850 | #define CHAIN_C 2 |
| 851 | #define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4 |
| 852 | #define ALL_BAND_FILTER 0xFF00 |
| 853 | #define IN_BAND_FILTER 0xFF |
| 854 | #define MIN_AVERAGE_NOISE_MAX_VALUE 0xFFFFFFFF |
| 855 | |
| 856 | enum iwl4965_false_alarm_state { |
| 857 | IWL_FA_TOO_MANY = 0, |
| 858 | IWL_FA_TOO_FEW = 1, |
| 859 | IWL_FA_GOOD_RANGE = 2, |
| 860 | }; |
| 861 | |
| 862 | enum iwl4965_chain_noise_state { |
| 863 | IWL_CHAIN_NOISE_ALIVE = 0, /* must be 0 */ |
| 864 | IWL_CHAIN_NOISE_ACCUMULATE = 1, |
| 865 | IWL_CHAIN_NOISE_CALIBRATED = 2, |
| 866 | }; |
| 867 | |
| 868 | enum iwl4965_sensitivity_state { |
| 869 | IWL_SENS_CALIB_ALLOWED = 0, |
| 870 | IWL_SENS_CALIB_NEED_REINIT = 1, |
| 871 | }; |
| 872 | |
| 873 | enum iwl4965_calib_enabled_state { |
| 874 | IWL_CALIB_DISABLED = 0, /* must be 0 */ |
| 875 | IWL_CALIB_ENABLED = 1, |
| 876 | }; |
| 877 | |
| 878 | struct statistics_general_data { |
| 879 | u32 beacon_silence_rssi_a; |
| 880 | u32 beacon_silence_rssi_b; |
| 881 | u32 beacon_silence_rssi_c; |
| 882 | u32 beacon_energy_a; |
| 883 | u32 beacon_energy_b; |
| 884 | u32 beacon_energy_c; |
| 885 | }; |
| 886 | |
| 887 | /* Sensitivity calib data */ |
| 888 | struct iwl4965_sensitivity_data { |
| 889 | u32 auto_corr_ofdm; |
| 890 | u32 auto_corr_ofdm_mrc; |
| 891 | u32 auto_corr_ofdm_x1; |
| 892 | u32 auto_corr_ofdm_mrc_x1; |
| 893 | u32 auto_corr_cck; |
| 894 | u32 auto_corr_cck_mrc; |
| 895 | |
| 896 | u32 last_bad_plcp_cnt_ofdm; |
| 897 | u32 last_fa_cnt_ofdm; |
| 898 | u32 last_bad_plcp_cnt_cck; |
| 899 | u32 last_fa_cnt_cck; |
| 900 | |
| 901 | u32 nrg_curr_state; |
| 902 | u32 nrg_prev_state; |
| 903 | u32 nrg_value[10]; |
| 904 | u8 nrg_silence_rssi[NRG_NUM_PREV_STAT_L]; |
| 905 | u32 nrg_silence_ref; |
| 906 | u32 nrg_energy_idx; |
| 907 | u32 nrg_silence_idx; |
| 908 | u32 nrg_th_cck; |
| 909 | s32 nrg_auto_corr_silence_diff; |
| 910 | u32 num_in_cck_no_fa; |
| 911 | u32 nrg_th_ofdm; |
| 912 | |
| 913 | u8 state; |
| 914 | }; |
| 915 | |
| 916 | /* Chain noise (differential Rx gain) calib data */ |
| 917 | struct iwl4965_chain_noise_data { |
| 918 | u8 state; |
| 919 | u16 beacon_count; |
| 920 | u32 chain_noise_a; |
| 921 | u32 chain_noise_b; |
| 922 | u32 chain_noise_c; |
| 923 | u32 chain_signal_a; |
| 924 | u32 chain_signal_b; |
| 925 | u32 chain_signal_c; |
| 926 | u8 disconn_array[NUM_RX_CHAINS]; |
| 927 | u8 delta_gain_code[NUM_RX_CHAINS]; |
| 928 | u8 radio_write; |
| 929 | }; |
| 930 | |
| 931 | #define EEPROM_SEM_TIMEOUT 10 /* milliseconds */ |
| 932 | #define EEPROM_SEM_RETRY_LIMIT 1000 /* number of attempts (not time) */ |
| 933 | |
| 934 | |
| 935 | #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT |
| 936 | |
| 937 | enum { |
| 938 | MEASUREMENT_READY = (1 << 0), |
| 939 | MEASUREMENT_ACTIVE = (1 << 1), |
| 940 | }; |
| 941 | |
| 942 | #endif |
| 943 | |
| 944 | struct iwl_priv { |
| 945 | |
| 946 | /* ieee device used by generic ieee processing code */ |
| 947 | struct ieee80211_hw *hw; |
| 948 | struct ieee80211_channel *ieee_channels; |
| 949 | struct ieee80211_rate *ieee_rates; |
| 950 | struct iwl_cfg *cfg; |
| 951 | |
| 952 | /* temporary frame storage list */ |
| 953 | struct list_head free_frames; |
| 954 | int frames_count; |
| 955 | |
| 956 | enum ieee80211_band band; |
| 957 | int alloc_rxb_skb; |
| 958 | bool add_radiotap; |
| 959 | |
| 960 | void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv, |
| 961 | struct iwl4965_rx_mem_buffer *rxb); |
| 962 | |
| 963 | struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS]; |
| 964 | |
| 965 | #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT |
| 966 | /* spectrum measurement report caching */ |
| 967 | struct iwl4965_spectrum_notification measure_report; |
| 968 | u8 measurement_status; |
| 969 | #endif |
| 970 | /* ucode beacon time */ |
| 971 | u32 ucode_beacon_time; |
| 972 | |
| 973 | /* we allocate array of iwl4965_channel_info for NIC's valid channels. |
| 974 | * Access via channel # using indirect index array */ |
| 975 | struct iwl_channel_info *channel_info; /* channel info array */ |
| 976 | u8 channel_count; /* # of channels */ |
| 977 | |
| 978 | /* each calibration channel group in the EEPROM has a derived |
| 979 | * clip setting for each rate. */ |
| 980 | const struct iwl4965_clip_group clip_groups[5]; |
| 981 | |
| 982 | /* thermal calibration */ |
| 983 | s32 temperature; /* degrees Kelvin */ |
| 984 | s32 last_temperature; |
| 985 | |
| 986 | /* Scan related variables */ |
| 987 | unsigned long last_scan_jiffies; |
| 988 | unsigned long next_scan_jiffies; |
| 989 | unsigned long scan_start; |
| 990 | unsigned long scan_pass_start; |
| 991 | unsigned long scan_start_tsf; |
| 992 | int scan_bands; |
| 993 | int one_direct_scan; |
| 994 | u8 direct_ssid_len; |
| 995 | u8 direct_ssid[IW_ESSID_MAX_SIZE]; |
| 996 | struct iwl4965_scan_cmd *scan; |
| 997 | u8 only_active_channel; |
| 998 | |
| 999 | /* spinlock */ |
| 1000 | spinlock_t lock; /* protect general shared data */ |
| 1001 | spinlock_t hcmd_lock; /* protect hcmd */ |
| 1002 | struct mutex mutex; |
| 1003 | |
| 1004 | /* basic pci-network driver stuff */ |
| 1005 | struct pci_dev *pci_dev; |
| 1006 | |
| 1007 | /* pci hardware address support */ |
| 1008 | void __iomem *hw_base; |
| 1009 | |
| 1010 | /* uCode images, save to reload in case of failure */ |
| 1011 | struct fw_desc ucode_code; /* runtime inst */ |
| 1012 | struct fw_desc ucode_data; /* runtime data original */ |
| 1013 | struct fw_desc ucode_data_backup; /* runtime data save/restore */ |
| 1014 | struct fw_desc ucode_init; /* initialization inst */ |
| 1015 | struct fw_desc ucode_init_data; /* initialization data */ |
| 1016 | struct fw_desc ucode_boot; /* bootstrap inst */ |
| 1017 | |
| 1018 | |
| 1019 | struct iwl4965_rxon_time_cmd rxon_timing; |
| 1020 | |
| 1021 | /* We declare this const so it can only be |
| 1022 | * changed via explicit cast within the |
| 1023 | * routines that actually update the physical |
| 1024 | * hardware */ |
| 1025 | const struct iwl4965_rxon_cmd active_rxon; |
| 1026 | struct iwl4965_rxon_cmd staging_rxon; |
| 1027 | |
| 1028 | int error_recovering; |
| 1029 | struct iwl4965_rxon_cmd recovery_rxon; |
| 1030 | |
| 1031 | /* 1st responses from initialize and runtime uCode images. |
| 1032 | * 4965's initialize alive response contains some calibration data. */ |
| 1033 | struct iwl4965_init_alive_resp card_alive_init; |
| 1034 | struct iwl4965_alive_resp card_alive; |
| 1035 | #ifdef CONFIG_IWLWIFI_RFKILL |
| 1036 | struct iwl_rfkill_mngr rfkill_mngr; |
| 1037 | #endif |
| 1038 | |
| 1039 | #ifdef CONFIG_IWLWIFI_LEDS |
| 1040 | struct iwl4965_led led[IWL_LED_TRG_MAX]; |
| 1041 | unsigned long last_blink_time; |
| 1042 | u8 last_blink_rate; |
| 1043 | u8 allow_blinking; |
| 1044 | u64 led_tpt; |
| 1045 | #endif |
| 1046 | |
| 1047 | u16 active_rate; |
| 1048 | u16 active_rate_basic; |
| 1049 | |
| 1050 | u8 assoc_station_added; |
| 1051 | u8 use_ant_b_for_management_frame; /* Tx antenna selection */ |
| 1052 | u8 valid_antenna; /* Bit mask of antennas actually connected */ |
| 1053 | #ifdef CONFIG_IWL4965_SENSITIVITY |
| 1054 | struct iwl4965_sensitivity_data sensitivity_data; |
| 1055 | struct iwl4965_chain_noise_data chain_noise_data; |
| 1056 | u8 start_calib; |
| 1057 | __le16 sensitivity_tbl[HD_TABLE_SIZE]; |
| 1058 | #endif /*CONFIG_IWL4965_SENSITIVITY*/ |
| 1059 | |
| 1060 | #ifdef CONFIG_IWL4965_HT |
| 1061 | struct iwl_ht_info current_ht_config; |
| 1062 | #endif |
| 1063 | u8 last_phy_res[100]; |
| 1064 | |
| 1065 | /* Rate scaling data */ |
| 1066 | struct iwl4965_lq_mngr lq_mngr; |
| 1067 | |
| 1068 | /* Rate scaling data */ |
| 1069 | s8 data_retry_limit; |
| 1070 | u8 retry_rate; |
| 1071 | |
| 1072 | wait_queue_head_t wait_command_queue; |
| 1073 | |
| 1074 | int activity_timer_active; |
| 1075 | |
| 1076 | /* Rx and Tx DMA processing queues */ |
| 1077 | struct iwl4965_rx_queue rxq; |
| 1078 | struct iwl4965_tx_queue txq[IWL_MAX_NUM_QUEUES]; |
| 1079 | unsigned long txq_ctx_active_msk; |
| 1080 | struct iwl4965_kw kw; /* keep warm address */ |
| 1081 | u32 scd_base_addr; /* scheduler sram base address */ |
| 1082 | |
| 1083 | unsigned long status; |
| 1084 | |
| 1085 | int last_rx_rssi; /* From Rx packet statisitics */ |
| 1086 | int last_rx_noise; /* From beacon statistics */ |
| 1087 | |
| 1088 | /* counts mgmt, ctl, and data packets */ |
| 1089 | struct traffic_stats { |
| 1090 | u32 cnt; |
| 1091 | u64 bytes; |
| 1092 | } tx_stats[3], rx_stats[3]; |
| 1093 | |
| 1094 | struct iwl4965_power_mgr power_data; |
| 1095 | |
| 1096 | struct iwl4965_notif_statistics statistics; |
| 1097 | unsigned long last_statistics_time; |
| 1098 | |
| 1099 | /* context information */ |
| 1100 | u8 essid[IW_ESSID_MAX_SIZE]; |
| 1101 | u8 essid_len; |
| 1102 | u16 rates_mask; |
| 1103 | |
| 1104 | u32 power_mode; |
| 1105 | u32 antenna; |
| 1106 | u8 bssid[ETH_ALEN]; |
| 1107 | u16 rts_threshold; |
| 1108 | u8 mac_addr[ETH_ALEN]; |
| 1109 | |
| 1110 | /*station table variables */ |
| 1111 | spinlock_t sta_lock; |
| 1112 | int num_stations; |
| 1113 | struct iwl4965_station_entry stations[IWL_STATION_COUNT]; |
| 1114 | struct iwl_wep_key wep_keys[WEP_KEYS_MAX]; |
| 1115 | u8 default_wep_key; |
| 1116 | u8 key_mapping_key; |
| 1117 | unsigned long ucode_key_table; |
| 1118 | |
| 1119 | /* Indication if ieee80211_ops->open has been called */ |
| 1120 | u8 is_open; |
| 1121 | |
| 1122 | u8 mac80211_registered; |
| 1123 | |
| 1124 | u32 notif_missed_beacons; |
| 1125 | |
| 1126 | /* Rx'd packet timing information */ |
| 1127 | u32 last_beacon_time; |
| 1128 | u64 last_tsf; |
| 1129 | |
| 1130 | /* Duplicate packet detection */ |
| 1131 | u16 last_seq_num; |
| 1132 | u16 last_frag_num; |
| 1133 | unsigned long last_packet_time; |
| 1134 | |
| 1135 | /* Hash table for finding stations in IBSS network */ |
| 1136 | struct list_head ibss_mac_hash[IWL_IBSS_MAC_HASH_SIZE]; |
| 1137 | |
| 1138 | /* eeprom */ |
| 1139 | struct iwl4965_eeprom eeprom; |
| 1140 | |
| 1141 | enum ieee80211_if_types iw_mode; |
| 1142 | |
| 1143 | struct sk_buff *ibss_beacon; |
| 1144 | |
| 1145 | /* Last Rx'd beacon timestamp */ |
| 1146 | u64 timestamp; |
| 1147 | u16 beacon_int; |
| 1148 | struct ieee80211_vif *vif; |
| 1149 | |
| 1150 | struct iwl_hw_params hw_params; |
| 1151 | /* driver/uCode shared Tx Byte Counts and Rx status */ |
| 1152 | void *shared_virt; |
| 1153 | /* Physical Pointer to Tx Byte Counts and Rx status */ |
| 1154 | dma_addr_t shared_phys; |
| 1155 | |
| 1156 | /* Current association information needed to configure the |
| 1157 | * hardware */ |
| 1158 | u16 assoc_id; |
| 1159 | u16 assoc_capability; |
| 1160 | u8 ps_mode; |
| 1161 | |
| 1162 | struct iwl4965_qos_info qos_data; |
| 1163 | |
| 1164 | struct workqueue_struct *workqueue; |
| 1165 | |
| 1166 | struct work_struct up; |
| 1167 | struct work_struct restart; |
| 1168 | struct work_struct calibrated_work; |
| 1169 | struct work_struct scan_completed; |
| 1170 | struct work_struct rx_replenish; |
| 1171 | struct work_struct rf_kill; |
| 1172 | struct work_struct abort_scan; |
| 1173 | struct work_struct update_link_led; |
| 1174 | struct work_struct auth_work; |
| 1175 | struct work_struct report_work; |
| 1176 | struct work_struct request_scan; |
| 1177 | struct work_struct beacon_update; |
| 1178 | |
| 1179 | struct tasklet_struct irq_tasklet; |
| 1180 | |
| 1181 | struct delayed_work init_alive_start; |
| 1182 | struct delayed_work alive_start; |
| 1183 | struct delayed_work activity_timer; |
| 1184 | struct delayed_work thermal_periodic; |
| 1185 | struct delayed_work gather_stats; |
| 1186 | struct delayed_work scan_check; |
| 1187 | struct delayed_work post_associate; |
| 1188 | |
| 1189 | #define IWL_DEFAULT_TX_POWER 0x0F |
| 1190 | s8 user_txpower_limit; |
| 1191 | s8 max_channel_txpower_limit; |
| 1192 | |
| 1193 | #ifdef CONFIG_PM |
| 1194 | u32 pm_state[16]; |
| 1195 | #endif |
| 1196 | |
| 1197 | #ifdef CONFIG_IWLWIFI_DEBUG |
| 1198 | /* debugging info */ |
| 1199 | u32 framecnt_to_us; |
| 1200 | atomic_t restrict_refcnt; |
| 1201 | #ifdef CONFIG_IWLWIFI_DEBUGFS |
| 1202 | /* debugfs */ |
| 1203 | struct iwl_debugfs *dbgfs; |
| 1204 | #endif /* CONFIG_IWLWIFI_DEBUGFS */ |
| 1205 | #endif /* CONFIG_IWLWIFI_DEBUG */ |
| 1206 | |
| 1207 | struct work_struct txpower_work; |
| 1208 | #ifdef CONFIG_IWL4965_SENSITIVITY |
| 1209 | struct work_struct sensitivity_work; |
| 1210 | #endif |
| 1211 | struct timer_list statistics_periodic; |
| 1212 | }; /*iwl_priv */ |
| 1213 | |
| 1214 | static inline int iwl_is_associated(struct iwl_priv *priv) |
| 1215 | { |
| 1216 | return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0; |
| 1217 | } |
| 1218 | |
| 1219 | static inline int is_channel_valid(const struct iwl_channel_info *ch_info) |
| 1220 | { |
| 1221 | if (ch_info == NULL) |
| 1222 | return 0; |
| 1223 | return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0; |
| 1224 | } |
| 1225 | |
| 1226 | static inline int is_channel_narrow(const struct iwl_channel_info *ch_info) |
| 1227 | { |
| 1228 | return (ch_info->flags & EEPROM_CHANNEL_NARROW) ? 1 : 0; |
| 1229 | } |
| 1230 | |
| 1231 | static inline int is_channel_radar(const struct iwl_channel_info *ch_info) |
| 1232 | { |
| 1233 | return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0; |
| 1234 | } |
| 1235 | |
| 1236 | static inline u8 is_channel_a_band(const struct iwl_channel_info *ch_info) |
| 1237 | { |
| 1238 | return ch_info->band == IEEE80211_BAND_5GHZ; |
| 1239 | } |
| 1240 | |
| 1241 | static inline u8 is_channel_bg_band(const struct iwl_channel_info *ch_info) |
| 1242 | { |
| 1243 | return ch_info->band == IEEE80211_BAND_2GHZ; |
| 1244 | } |
| 1245 | |
| 1246 | static inline int is_channel_passive(const struct iwl_channel_info *ch) |
| 1247 | { |
| 1248 | return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0; |
| 1249 | } |
| 1250 | |
| 1251 | static inline int is_channel_ibss(const struct iwl_channel_info *ch) |
| 1252 | { |
| 1253 | return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0; |
| 1254 | } |
| 1255 | |
| 1256 | extern const struct iwl_channel_info *iwl_get_channel_info( |
| 1257 | const struct iwl_priv *priv, enum ieee80211_band band, u16 channel); |
| 1258 | |
| 1259 | /* Requires full declaration of iwl_priv before including */ |
| 1260 | |
| 1261 | #endif /* __iwl4965_4965_h__ */ |