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iwlwifi: add missing comments
[deliverable/linux.git] / drivers / net / wireless / iwlwifi / iwl-4965.h
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b481de9c
ZY		 1/******************************************************************************
2 *
3 * Copyright(c) 2003 - 2007 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 *****************************************************************************/
fcd427bb
BC		 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
b481de9c
ZY		 32#ifndef __iwl_4965_h__
33#define __iwl_4965_h__
34
5d08cd1d
CH		 35#include <linux/pci.h> /* for struct pci_device_id */
36#include <linux/kernel.h>
37#include <net/ieee80211_radiotap.h>
38
5d08cd1d 39/* Hardware specific file defines the PCI IDs table for that hardware module */
bb8c093b 40extern struct pci_device_id iwl4965_hw_card_ids[];
5d08cd1d
CH		 41
42#define DRV_NAME "iwl4965"
43#include "iwl-4965-hw.h"
44#include "iwl-prph.h"
45#include "iwl-4965-debug.h"
46
47/* Default noise level to report when noise measurement is not available.
48 * This may be because we're:
49 * 1) Not associated (4965, no beacon statistics being sent to driver)
50 * 2) Scanning (noise measurement does not apply to associated channel)
51 * 3) Receiving CCK (3945 delivers noise info only for OFDM frames)
52 * Use default noise value of -127 ... this is below the range of measurable
53 * Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
54 * Also, -127 works better than 0 when averaging frames with/without
55 * noise info (e.g. averaging might be done in app); measured dBm values are
56 * always negative ... using a negative value as the default keeps all
57 * averages within an s8's (used in some apps) range of negative values. */
58#define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
59
60/* Module parameters accessible from iwl-*.c */
bb8c093b
CH		 61extern int iwl4965_param_hwcrypto;
62extern int iwl4965_param_queues_num;
9ee1ba47 63extern int iwl4965_param_amsdu_size_8K;
5d08cd1d 64
bb8c093b 65enum iwl4965_antenna {
5d08cd1d
CH		 66 IWL_ANTENNA_DIVERSITY,
67 IWL_ANTENNA_MAIN,
68 IWL_ANTENNA_AUX
69};
70
71/*
72 * RTS threshold here is total size [2347] minus 4 FCS bytes
73 * Per spec:
74 * a value of 0 means RTS on all data/management packets
75 * a value > max MSDU size means no RTS
76 * else RTS for data/management frames where MPDU is larger
77 * than RTS value.
78 */
79#define DEFAULT_RTS_THRESHOLD 2347U
80#define MIN_RTS_THRESHOLD 0U
81#define MAX_RTS_THRESHOLD 2347U
82#define MAX_MSDU_SIZE 2304U
83#define MAX_MPDU_SIZE 2346U
84#define DEFAULT_BEACON_INTERVAL 100U
85#define DEFAULT_SHORT_RETRY_LIMIT 7U
86#define DEFAULT_LONG_RETRY_LIMIT 4U
87
bb8c093b 88struct iwl4965_rx_mem_buffer {
5d08cd1d
CH		 89 dma_addr_t dma_addr;
90 struct sk_buff *skb;
91 struct list_head list;
92};
93
bb8c093b 94struct iwl4965_rt_rx_hdr {
5d08cd1d
CH		 95 struct ieee80211_radiotap_header rt_hdr;
96 __le64 rt_tsf; /* TSF */
97 u8 rt_flags; /* radiotap packet flags */
98 u8 rt_rate; /* rate in 500kb/s */
99 __le16 rt_channelMHz; /* channel in MHz */
100 __le16 rt_chbitmask; /* channel bitfield */
101 s8 rt_dbmsignal; /* signal in dBm, kluged to signed */
102 s8 rt_dbmnoise;
103 u8 rt_antenna; /* antenna number */
104 u8 payload[0]; /* payload... */
105} __attribute__ ((packed));
106
bb8c093b 107struct iwl4965_rt_tx_hdr {
5d08cd1d
CH		 108 struct ieee80211_radiotap_header rt_hdr;
109 u8 rt_rate; /* rate in 500kb/s */
110 __le16 rt_channel; /* channel in mHz */
111 __le16 rt_chbitmask; /* channel bitfield */
112 s8 rt_dbmsignal; /* signal in dBm, kluged to signed */
113 u8 rt_antenna; /* antenna number */
114 u8 payload[0]; /* payload... */
115} __attribute__ ((packed));
116
117/*
118 * Generic queue structure
119 *
120 * Contains common data for Rx and Tx queues
121 */
bb8c093b 122struct iwl4965_queue {
5d08cd1d
CH		 123 int n_bd; /* number of BDs in this queue */
124 int write_ptr; /* 1-st empty entry (index) host_w*/
125 int read_ptr; /* last used entry (index) host_r*/
126 dma_addr_t dma_addr; /* physical addr for BD's */
127 int n_window; /* safe queue window */
128 u32 id;
129 int low_mark; /* low watermark, resume queue if free
130 * space more than this */
131 int high_mark; /* high watermark, stop queue if free
132 * space less than this */
133} __attribute__ ((packed));
134
135#define MAX_NUM_OF_TBS (20)
136
bc47279f 137/* One for each TFD */
bb8c093b 138struct iwl4965_tx_info {
5d08cd1d
CH		 139 struct ieee80211_tx_status status;
140 struct sk_buff *skb[MAX_NUM_OF_TBS];
141};
142
143/**
bb8c093b 144 * struct iwl4965_tx_queue - Tx Queue for DMA
bc47279f
BC		 145 * @q: generic Rx/Tx queue descriptor
146 * @bd: base of circular buffer of TFDs
147 * @cmd: array of command/Tx buffers
148 * @dma_addr_cmd: physical address of cmd/tx buffer array
149 * @txb: array of per-TFD driver data
150 * @need_update: indicates need to update read/write index
151 * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
5d08cd1d 152 *
bc47279f
BC		 153 * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
154 * descriptors) and required locking structures.
5d08cd1d 155 */
bb8c093b
CH		 156struct iwl4965_tx_queue {
157 struct iwl4965_queue q;
158 struct iwl4965_tfd_frame *bd;
159 struct iwl4965_cmd *cmd;
5d08cd1d 160 dma_addr_t dma_addr_cmd;
bb8c093b 161 struct iwl4965_tx_info *txb;
5d08cd1d
CH		 162 int need_update;
163 int sched_retry;
164 int active;
165};
166
167#define IWL_NUM_SCAN_RATES (2)
168
bb8c093b 169struct iwl4965_channel_tgd_info {
5d08cd1d
CH		 170 u8 type;
171 s8 max_power;
172};
173
bb8c093b 174struct iwl4965_channel_tgh_info {
5d08cd1d
CH		 175 s64 last_radar_time;
176};
177
178/* current Tx power values to use, one for each rate for each channel.
179 * requested power is limited by:
180 * -- regulatory EEPROM limits for this channel
181 * -- hardware capabilities (clip-powers)
182 * -- spectrum management
183 * -- user preference (e.g. iwconfig)
184 * when requested power is set, base power index must also be set. */
bb8c093b
CH		 185struct iwl4965_channel_power_info {
186 struct iwl4965_tx_power tpc; /* actual radio and DSP gain settings */
5d08cd1d
CH		 187 s8 power_table_index; /* actual (compenst'd) index into gain table */
188 s8 base_power_index; /* gain index for power at factory temp. */
189 s8 requested_power; /* power (dBm) requested for this chnl/rate */
190};
191
192/* current scan Tx power values to use, one for each scan rate for each
193 * channel. */
bb8c093b
CH		 194struct iwl4965_scan_power_info {
195 struct iwl4965_tx_power tpc; /* actual radio and DSP gain settings */
5d08cd1d
CH		 196 s8 power_table_index; /* actual (compenst'd) index into gain table */
197 s8 requested_power; /* scan pwr (dBm) requested for chnl/rate */
198};
199
fcd427bb
BC		 200/* For fat_extension_channel */
201enum {
202 HT_IE_EXT_CHANNEL_NONE = 0,
203 HT_IE_EXT_CHANNEL_ABOVE,
204 HT_IE_EXT_CHANNEL_INVALID,
205 HT_IE_EXT_CHANNEL_BELOW,
206 HT_IE_EXT_CHANNEL_MAX
207};
208
5d08cd1d
CH		 209/*
210 * One for each channel, holds all channel setup data
211 * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
212 * with one another!
213 */
214#define IWL4965_MAX_RATE (33)
215
bb8c093b
CH		 216struct iwl4965_channel_info {
217 struct iwl4965_channel_tgd_info tgd;
218 struct iwl4965_channel_tgh_info tgh;
fcd427bb
BC		 219 struct iwl4965_eeprom_channel eeprom; /* EEPROM regulatory limit */
220 struct iwl4965_eeprom_channel fat_eeprom; /* EEPROM regulatory limit for
221 * FAT channel */
5d08cd1d
CH		 222
223 u8 channel; /* channel number */
224 u8 flags; /* flags copied from EEPROM */
225 s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
fcd427bb 226 s8 curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) limit */
5d08cd1d
CH		 227 s8 min_power; /* always 0 */
228 s8 scan_power; /* (dBm) regul. eeprom, direct scans, any rate */
229
230 u8 group_index; /* 0-4, maps channel to group1/2/3/4/5 */
231 u8 band_index; /* 0-4, maps channel to band1/2/3/4/5 */
232 u8 phymode; /* MODE_IEEE80211{A,B,G} */
233
234 /* Radio/DSP gain settings for each "normal" data Tx rate.
235 * These include, in addition to RF and DSP gain, a few fields for
236 * remembering/modifying gain settings (indexes). */
bb8c093b 237 struct iwl4965_channel_power_info power_info[IWL4965_MAX_RATE];
5d08cd1d
CH		 238
239 /* FAT channel info */
240 s8 fat_max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
241 s8 fat_curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) */
242 s8 fat_min_power; /* always 0 */
243 s8 fat_scan_power; /* (dBm) eeprom, direct scans, any rate */
244 u8 fat_flags; /* flags copied from EEPROM */
fcd427bb 245 u8 fat_extension_channel; /* HT_IE_EXT_CHANNEL_* */
5d08cd1d
CH		 246
247 /* Radio/DSP gain settings for each scan rate, for directed scans. */
bb8c093b 248 struct iwl4965_scan_power_info scan_pwr_info[IWL_NUM_SCAN_RATES];
5d08cd1d
CH		 249};
250
bb8c093b 251struct iwl4965_clip_group {
5d08cd1d
CH		 252 /* maximum power level to prevent clipping for each rate, derived by
253 * us from this band's saturation power in EEPROM */
254 const s8 clip_powers[IWL_MAX_RATES];
255};
256
257#include "iwl-4965-rs.h"
258
259#define IWL_TX_FIFO_AC0 0
260#define IWL_TX_FIFO_AC1 1
261#define IWL_TX_FIFO_AC2 2
262#define IWL_TX_FIFO_AC3 3
263#define IWL_TX_FIFO_HCCA_1 5
264#define IWL_TX_FIFO_HCCA_2 6
265#define IWL_TX_FIFO_NONE 7
266
267/* Minimum number of queues. MAX_NUM is defined in hw specific files */
268#define IWL_MIN_NUM_QUEUES 4
269
270/* Power management (not Tx power) structures */
271
bb8c093b
CH		 272struct iwl4965_power_vec_entry {
273 struct iwl4965_powertable_cmd cmd;
5d08cd1d
CH		 274 u8 no_dtim;
275};
276#define IWL_POWER_RANGE_0 (0)
277#define IWL_POWER_RANGE_1 (1)
278
279#define IWL_POWER_MODE_CAM 0x00 /* Continuously Aware Mode, always on */
280#define IWL_POWER_INDEX_3 0x03
281#define IWL_POWER_INDEX_5 0x05
282#define IWL_POWER_AC 0x06
283#define IWL_POWER_BATTERY 0x07
284#define IWL_POWER_LIMIT 0x07
285#define IWL_POWER_MASK 0x0F
286#define IWL_POWER_ENABLED 0x10
287#define IWL_POWER_LEVEL(x) ((x) & IWL_POWER_MASK)
288
bb8c093b 289struct iwl4965_power_mgr {
5d08cd1d 290 spinlock_t lock;
bb8c093b
CH		 291 struct iwl4965_power_vec_entry pwr_range_0[IWL_POWER_AC];
292 struct iwl4965_power_vec_entry pwr_range_1[IWL_POWER_AC];
5d08cd1d
CH		 293 u8 active_index;
294 u32 dtim_val;
295};
296
297#define IEEE80211_DATA_LEN 2304
298#define IEEE80211_4ADDR_LEN 30
299#define IEEE80211_HLEN (IEEE80211_4ADDR_LEN)
300#define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
301
bb8c093b 302struct iwl4965_frame {
5d08cd1d
CH		 303 union {
304 struct ieee80211_hdr frame;
bb8c093b 305 struct iwl4965_tx_beacon_cmd beacon;
5d08cd1d
CH		 306 u8 raw[IEEE80211_FRAME_LEN];
307 u8 cmd[360];
308 } u;
309 struct list_head list;
310};
311
312#define SEQ_TO_QUEUE(x) ((x >> 8) & 0xbf)
313#define QUEUE_TO_SEQ(x) ((x & 0xbf) << 8)
314#define SEQ_TO_INDEX(x) (x & 0xff)
315#define INDEX_TO_SEQ(x) (x & 0xff)
316#define SEQ_HUGE_FRAME (0x4000)
317#define SEQ_RX_FRAME __constant_cpu_to_le16(0x8000)
318#define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
319#define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
320#define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
321
322enum {
323 /* CMD_SIZE_NORMAL = 0, */
324 CMD_SIZE_HUGE = (1 << 0),
325 /* CMD_SYNC = 0, */
326 CMD_ASYNC = (1 << 1),
327 /* CMD_NO_SKB = 0, */
328 CMD_WANT_SKB = (1 << 2),
329};
330
bb8c093b
CH		 331struct iwl4965_cmd;
332struct iwl4965_priv;
5d08cd1d 333
bb8c093b
CH		 334struct iwl4965_cmd_meta {
335 struct iwl4965_cmd_meta *source;
5d08cd1d
CH		 336 union {
337 struct sk_buff *skb;
bb8c093b
CH		 338 int (*callback)(struct iwl4965_priv *priv,
339 struct iwl4965_cmd *cmd, struct sk_buff *skb);
5d08cd1d
CH		 340 } __attribute__ ((packed)) u;
341
342 /* The CMD_SIZE_HUGE flag bit indicates that the command
343 * structure is stored at the end of the shared queue memory. */
344 u32 flags;
345
346} __attribute__ ((packed));
347
bc47279f
BC		 348/**
349 * struct iwl4965_cmd
350 *
351 * For allocation of the command and tx queues, this establishes the overall
352 * size of the largest command we send to uCode, except for a scan command
353 * (which is relatively huge; space is allocated separately).
354 */
bb8c093b 355struct iwl4965_cmd {
bc47279f
BC		 356 struct iwl4965_cmd_meta meta; /* driver data */
357 struct iwl4965_cmd_header hdr; /* uCode API */
5d08cd1d 358 union {
bb8c093b
CH		 359 struct iwl4965_addsta_cmd addsta;
360 struct iwl4965_led_cmd led;
5d08cd1d
CH		 361 u32 flags;
362 u8 val8;
363 u16 val16;
364 u32 val32;
bb8c093b
CH		 365 struct iwl4965_bt_cmd bt;
366 struct iwl4965_rxon_time_cmd rxon_time;
367 struct iwl4965_powertable_cmd powertable;
368 struct iwl4965_qosparam_cmd qosparam;
369 struct iwl4965_tx_cmd tx;
370 struct iwl4965_tx_beacon_cmd tx_beacon;
371 struct iwl4965_rxon_assoc_cmd rxon_assoc;
5d08cd1d
CH		 372 u8 *indirect;
373 u8 payload[360];
374 } __attribute__ ((packed)) cmd;
375} __attribute__ ((packed));
376
bb8c093b 377struct iwl4965_host_cmd {
5d08cd1d
CH		 378 u8 id;
379 u16 len;
bb8c093b 380 struct iwl4965_cmd_meta meta;
5d08cd1d
CH		 381 const void *data;
382};
383
bb8c093b
CH		 384#define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl4965_cmd) - \
385 sizeof(struct iwl4965_cmd_meta))
5d08cd1d
CH		 386
387/*
388 * RX related structures and functions
389 */
390#define RX_FREE_BUFFERS 64
391#define RX_LOW_WATERMARK 8
392
393#define SUP_RATE_11A_MAX_NUM_CHANNELS 8
394#define SUP_RATE_11B_MAX_NUM_CHANNELS 4
395#define SUP_RATE_11G_MAX_NUM_CHANNELS 12
396
397/**
bb8c093b 398 * struct iwl4965_rx_queue - Rx queue
5d08cd1d
CH		 399 * @processed: Internal index to last handled Rx packet
400 * @read: Shared index to newest available Rx buffer
401 * @write: Shared index to oldest written Rx packet
402 * @free_count: Number of pre-allocated buffers in rx_free
403 * @rx_free: list of free SKBs for use
404 * @rx_used: List of Rx buffers with no SKB
405 * @need_update: flag to indicate we need to update read/write index
406 *
bb8c093b 407 * NOTE: rx_free and rx_used are used as a FIFO for iwl4965_rx_mem_buffers
5d08cd1d 408 */
bb8c093b 409struct iwl4965_rx_queue {
5d08cd1d
CH		 410 __le32 *bd;
411 dma_addr_t dma_addr;
bb8c093b
CH		 412 struct iwl4965_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
413 struct iwl4965_rx_mem_buffer *queue[RX_QUEUE_SIZE];
5d08cd1d
CH		 414 u32 processed;
415 u32 read;
416 u32 write;
417 u32 free_count;
418 struct list_head rx_free;
419 struct list_head rx_used;
420 int need_update;
421 spinlock_t lock;
422};
423
424#define IWL_SUPPORTED_RATES_IE_LEN 8
425
426#define SCAN_INTERVAL 100
427
428#define MAX_A_CHANNELS 252
429#define MIN_A_CHANNELS 7
430
431#define MAX_B_CHANNELS 14
432#define MIN_B_CHANNELS 1
433
434#define STATUS_HCMD_ACTIVE 0 /* host command in progress */
435#define STATUS_INT_ENABLED 1
436#define STATUS_RF_KILL_HW 2
437#define STATUS_RF_KILL_SW 3
438#define STATUS_INIT 4
439#define STATUS_ALIVE 5
440#define STATUS_READY 6
441#define STATUS_TEMPERATURE 7
442#define STATUS_GEO_CONFIGURED 8
443#define STATUS_EXIT_PENDING 9
444#define STATUS_IN_SUSPEND 10
445#define STATUS_STATISTICS 11
446#define STATUS_SCANNING 12
447#define STATUS_SCAN_ABORTING 13
448#define STATUS_SCAN_HW 14
449#define STATUS_POWER_PMI 15
450#define STATUS_FW_ERROR 16
451
452#define MAX_TID_COUNT 9
453
454#define IWL_INVALID_RATE 0xFF
455#define IWL_INVALID_VALUE -1
456
c8b0e6e1
CH		 457#ifdef CONFIG_IWL4965_HT
458#ifdef CONFIG_IWL4965_HT_AGG
bc47279f
BC		 459/**
460 * struct iwl4965_ht_agg -- aggregation status while waiting for block-ack
461 * @txq_id: Tx queue used for Tx attempt
462 * @frame_count: # frames attempted by Tx command
463 * @wait_for_ba: Expect block-ack before next Tx reply
464 * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window
465 * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window
466 * @bitmap1: High order, one bit for each frame pending ACK in Tx window
467 * @rate_n_flags: Rate at which Tx was attempted
468 *
469 * If REPLY_TX indicates that aggregation was attempted, driver must wait
470 * for block ack (REPLY_COMPRESSED_BA). This struct stores tx reply info
471 * until block ack arrives.
472 */
bb8c093b 473struct iwl4965_ht_agg {
5d08cd1d
CH		 474 u16 txq_id;
475 u16 frame_count;
476 u16 wait_for_ba;
477 u16 start_idx;
478 u32 bitmap0;
479 u32 bitmap1;
480 u32 rate_n_flags;
481};
c8b0e6e1
CH		 482#endif /* CONFIG_IWL4965_HT_AGG */
483#endif /* CONFIG_IWL4965_HT */
5d08cd1d 484
bb8c093b 485struct iwl4965_tid_data {
5d08cd1d 486 u16 seq_number;
c8b0e6e1
CH		 487#ifdef CONFIG_IWL4965_HT
488#ifdef CONFIG_IWL4965_HT_AGG
bb8c093b 489 struct iwl4965_ht_agg agg;
c8b0e6e1
CH		 490#endif /* CONFIG_IWL4965_HT_AGG */
491#endif /* CONFIG_IWL4965_HT */
5d08cd1d
CH		 492};
493
bb8c093b 494struct iwl4965_hw_key {
5d08cd1d
CH		 495 enum ieee80211_key_alg alg;
496 int keylen;
497 u8 key[32];
498};
499
bb8c093b 500union iwl4965_ht_rate_supp {
5d08cd1d
CH		 501 u16 rates;
502 struct {
503 u8 siso_rate;
504 u8 mimo_rate;
505 };
506};
507
c8b0e6e1 508#ifdef CONFIG_IWL4965_HT
5d08cd1d 509#define CFG_HT_RX_AMPDU_FACTOR_DEF (0x3)
5d08cd1d
CH		 510#define CFG_HT_MPDU_DENSITY_2USEC (0x5)
511#define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_2USEC
512
9e0cc6de
RR		 513struct iwl_ht_info {
514 /* self configuration data */
5d08cd1d 515 u8 is_ht;
9e0cc6de 516 u8 supported_chan_width;
5d08cd1d 517 u16 tx_mimo_ps_mode;
9e0cc6de 518 u8 is_green_field;
bb54244b 519 u8 sgf; /* HT_SHORT_GI_* short guard interval */
5d08cd1d
CH		 520 u8 max_amsdu_size;
521 u8 ampdu_factor;
522 u8 mpdu_density;
9e0cc6de
RR		 523 u8 supp_mcs_set[16];
524 /* BSS related data */
525 u8 control_channel;
5d08cd1d 526 u8 extension_chan_offset;
5d08cd1d 527 u8 tx_chan_width;
9e0cc6de
RR		 528 u8 ht_protection;
529 u8 non_GF_STA_present;
5d08cd1d 530};
c8b0e6e1 531#endif /*CONFIG_IWL4965_HT */
5d08cd1d 532
c8b0e6e1 533#ifdef CONFIG_IWL4965_QOS
5d08cd1d 534
bb8c093b 535union iwl4965_qos_capabity {
5d08cd1d
CH		 536 struct {
537 u8 edca_count:4; /* bit 0-3 */
538 u8 q_ack:1; /* bit 4 */
539 u8 queue_request:1; /* bit 5 */
540 u8 txop_request:1; /* bit 6 */
541 u8 reserved:1; /* bit 7 */
542 } q_AP;
543 struct {
544 u8 acvo_APSD:1; /* bit 0 */
545 u8 acvi_APSD:1; /* bit 1 */
546 u8 ac_bk_APSD:1; /* bit 2 */
547 u8 ac_be_APSD:1; /* bit 3 */
548 u8 q_ack:1; /* bit 4 */
549 u8 max_len:2; /* bit 5-6 */
550 u8 more_data_ack:1; /* bit 7 */
551 } q_STA;
552 u8 val;
553};
554
555/* QoS structures */
bb8c093b 556struct iwl4965_qos_info {
5d08cd1d
CH		 557 int qos_enable;
558 int qos_active;
bb8c093b
CH		 559 union iwl4965_qos_capabity qos_cap;
560 struct iwl4965_qosparam_cmd def_qos_parm;
5d08cd1d 561};
c8b0e6e1 562#endif /*CONFIG_IWL4965_QOS */
5d08cd1d
CH		 563
564#define STA_PS_STATUS_WAKE 0
565#define STA_PS_STATUS_SLEEP 1
566
bb8c093b
CH		 567struct iwl4965_station_entry {
568 struct iwl4965_addsta_cmd sta;
569 struct iwl4965_tid_data tid[MAX_TID_COUNT];
5d08cd1d
CH		 570 u8 used;
571 u8 ps_status;
bb8c093b 572 struct iwl4965_hw_key keyinfo;
5d08cd1d
CH		 573};
574
575/* one for each uCode image (inst/data, boot/init/runtime) */
576struct fw_desc {
577 void *v_addr; /* access by driver */
578 dma_addr_t p_addr; /* access by card's busmaster DMA */
579 u32 len; /* bytes */
580};
581
582/* uCode file layout */
bb8c093b 583struct iwl4965_ucode {
5d08cd1d
CH		 584 __le32 ver; /* major/minor/subminor */
585 __le32 inst_size; /* bytes of runtime instructions */
586 __le32 data_size; /* bytes of runtime data */
587 __le32 init_size; /* bytes of initialization instructions */
588 __le32 init_data_size; /* bytes of initialization data */
589 __le32 boot_size; /* bytes of bootstrap instructions */
590 u8 data[0]; /* data in same order as "size" elements */
591};
592
593#define IWL_IBSS_MAC_HASH_SIZE 32
594
bb8c093b 595struct iwl4965_ibss_seq {
5d08cd1d
CH		 596 u8 mac[ETH_ALEN];
597 u16 seq_num;
598 u16 frag_num;
599 unsigned long packet_time;
600 struct list_head list;
601};
602
bc47279f
BC		 603/**
604 * struct iwl4965_driver_hw_info
605 * @max_txq_num: Max # Tx queues supported
606 * @ac_queue_count: # Tx queues for EDCA Access Categories (AC)
607 * @tx_cmd_len: Size of Tx command (but not including frame itself)
608 * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
609 * @rx_buffer_size:
610 * @max_rxq_log: Log-base-2 of max_rxq_size
611 * @max_stations:
612 * @bcast_sta_id:
613 * @shared_virt: Pointer to driver/uCode shared Tx Byte Counts and Rx status
614 * @shared_phys: Physical Pointer to Tx Byte Counts and Rx status
615 */
bb8c093b 616struct iwl4965_driver_hw_info {
5d08cd1d
CH		 617 u16 max_txq_num;
618 u16 ac_queue_count;
619 u16 tx_cmd_len;
620 u16 max_rxq_size;
9ee1ba47
RR		 621 u32 rx_buf_size;
622 u32 max_pkt_size;
5d08cd1d
CH		 623 u16 max_rxq_log;
624 u8 max_stations;
625 u8 bcast_sta_id;
626 void *shared_virt;
627 dma_addr_t shared_phys;
628};
629
5d08cd1d
CH		 630#define HT_SHORT_GI_20MHZ_ONLY (1 << 0)
631#define HT_SHORT_GI_40MHZ_ONLY (1 << 1)
632
633
bb8c093b 634#define IWL_RX_HDR(x) ((struct iwl4965_rx_frame_hdr *)(\
5d08cd1d
CH		 635 x->u.rx_frame.stats.payload + \
636 x->u.rx_frame.stats.phy_count))
bb8c093b 637#define IWL_RX_END(x) ((struct iwl4965_rx_frame_end *)(\
5d08cd1d
CH		 638 IWL_RX_HDR(x)->payload + \
639 le16_to_cpu(IWL_RX_HDR(x)->len)))
640#define IWL_RX_STATS(x) (&x->u.rx_frame.stats)
641#define IWL_RX_DATA(x) (IWL_RX_HDR(x)->payload)
642
643
644/******************************************************************************
645 *
646 * Functions implemented in iwl-base.c which are forward declared here
647 * for use by iwl-*.c
648 *
649 *****************************************************************************/
bb8c093b
CH		 650struct iwl4965_addsta_cmd;
651extern int iwl4965_send_add_station(struct iwl4965_priv *priv,
652 struct iwl4965_addsta_cmd *sta, u8 flags);
67d62035
RR		 653extern u8 iwl4965_add_station_flags(struct iwl4965_priv *priv, const u8 *addr,
654 int is_ap, u8 flags, void *ht_data);
bb8c093b 655extern int iwl4965_is_network_packet(struct iwl4965_priv *priv,
5d08cd1d 656 struct ieee80211_hdr *header);
bb8c093b
CH		 657extern int iwl4965_power_init_handle(struct iwl4965_priv *priv);
658extern int iwl4965_eeprom_init(struct iwl4965_priv *priv);
c8b0e6e1 659#ifdef CONFIG_IWL4965_DEBUG
bb8c093b
CH		 660extern void iwl4965_report_frame(struct iwl4965_priv *priv,
661 struct iwl4965_rx_packet *pkt,
5d08cd1d
CH		 662 struct ieee80211_hdr *header, int group100);
663#else
bb8c093b
CH		 664static inline void iwl4965_report_frame(struct iwl4965_priv *priv,
665 struct iwl4965_rx_packet *pkt,
5d08cd1d
CH		 666 struct ieee80211_hdr *header,
667 int group100) {}
668#endif
bb8c093b
CH		 669extern void iwl4965_handle_data_packet_monitor(struct iwl4965_priv *priv,
670 struct iwl4965_rx_mem_buffer *rxb,
5d08cd1d
CH		 671 void *data, short len,
672 struct ieee80211_rx_status *stats,
673 u16 phy_flags);
bb8c093b
CH		 674extern int iwl4965_is_duplicate_packet(struct iwl4965_priv *priv,
675 struct ieee80211_hdr *header);
676extern int iwl4965_rx_queue_alloc(struct iwl4965_priv *priv);
677extern void iwl4965_rx_queue_reset(struct iwl4965_priv *priv,
678 struct iwl4965_rx_queue *rxq);
679extern int iwl4965_calc_db_from_ratio(int sig_ratio);
680extern int iwl4965_calc_sig_qual(int rssi_dbm, int noise_dbm);
681extern int iwl4965_tx_queue_init(struct iwl4965_priv *priv,
682 struct iwl4965_tx_queue *txq, int count, u32 id);
683extern void iwl4965_rx_replenish(void *data);
684extern void iwl4965_tx_queue_free(struct iwl4965_priv *priv, struct iwl4965_tx_queue *txq);
685extern int iwl4965_send_cmd_pdu(struct iwl4965_priv *priv, u8 id, u16 len,
5d08cd1d 686 const void *data);
bb8c093b
CH		 687extern int __must_check iwl4965_send_cmd(struct iwl4965_priv *priv,
688 struct iwl4965_host_cmd *cmd);
689extern unsigned int iwl4965_fill_beacon_frame(struct iwl4965_priv *priv,
5d08cd1d
CH		 690 struct ieee80211_hdr *hdr,
691 const u8 *dest, int left);
bb8c093b
CH		 692extern int iwl4965_rx_queue_update_write_ptr(struct iwl4965_priv *priv,
693 struct iwl4965_rx_queue *q);
694extern int iwl4965_send_statistics_request(struct iwl4965_priv *priv);
695extern void iwl4965_set_decrypted_flag(struct iwl4965_priv *priv, struct sk_buff *skb,
5d08cd1d
CH		 696 u32 decrypt_res,
697 struct ieee80211_rx_status *stats);
698extern __le16 *ieee80211_get_qos_ctrl(struct ieee80211_hdr *hdr);
699
bb8c093b 700extern const u8 iwl4965_broadcast_addr[ETH_ALEN];
5d08cd1d
CH		 701
702/*
703 * Currently used by iwl-3945-rs... look at restructuring so that it doesn't
704 * call this... todo... fix that.
705*/
bb8c093b 706extern u8 iwl4965_sync_station(struct iwl4965_priv *priv, int sta_id,
5d08cd1d
CH		 707 u16 tx_rate, u8 flags);
708
709/******************************************************************************
710 *
711 * Functions implemented in iwl-[34]*.c which are forward declared here
712 * for use by iwl-base.c
713 *
714 * NOTE: The implementation of these functions are hardware specific
715 * which is why they are in the hardware specific files (vs. iwl-base.c)
716 *
717 * Naming convention --
bb8c093b
CH		 718 * iwl4965_ <-- Its part of iwlwifi (should be changed to iwl4965_)
719 * iwl4965_hw_ <-- Hardware specific (implemented in iwl-XXXX.c by all HW)
5d08cd1d 720 * iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
bb8c093b
CH		 721 * iwl4965_bg_ <-- Called from work queue context
722 * iwl4965_mac_ <-- mac80211 callback
5d08cd1d
CH		 723 *
724 ****************************************************************************/
bb8c093b
CH		 725extern void iwl4965_hw_rx_handler_setup(struct iwl4965_priv *priv);
726extern void iwl4965_hw_setup_deferred_work(struct iwl4965_priv *priv);
727extern void iwl4965_hw_cancel_deferred_work(struct iwl4965_priv *priv);
728extern int iwl4965_hw_rxq_stop(struct iwl4965_priv *priv);
729extern int iwl4965_hw_set_hw_setting(struct iwl4965_priv *priv);
730extern int iwl4965_hw_nic_init(struct iwl4965_priv *priv);
731extern int iwl4965_hw_nic_stop_master(struct iwl4965_priv *priv);
732extern void iwl4965_hw_txq_ctx_free(struct iwl4965_priv *priv);
733extern void iwl4965_hw_txq_ctx_stop(struct iwl4965_priv *priv);
734extern int iwl4965_hw_nic_reset(struct iwl4965_priv *priv);
735extern int iwl4965_hw_txq_attach_buf_to_tfd(struct iwl4965_priv *priv, void *tfd,
5d08cd1d 736 dma_addr_t addr, u16 len);
bb8c093b
CH		 737extern int iwl4965_hw_txq_free_tfd(struct iwl4965_priv *priv, struct iwl4965_tx_queue *txq);
738extern int iwl4965_hw_get_temperature(struct iwl4965_priv *priv);
739extern int iwl4965_hw_tx_queue_init(struct iwl4965_priv *priv,
740 struct iwl4965_tx_queue *txq);
741extern unsigned int iwl4965_hw_get_beacon_cmd(struct iwl4965_priv *priv,
742 struct iwl4965_frame *frame, u8 rate);
743extern int iwl4965_hw_get_rx_read(struct iwl4965_priv *priv);
744extern void iwl4965_hw_build_tx_cmd_rate(struct iwl4965_priv *priv,
745 struct iwl4965_cmd *cmd,
5d08cd1d
CH		 746 struct ieee80211_tx_control *ctrl,
747 struct ieee80211_hdr *hdr,
748 int sta_id, int tx_id);
bb8c093b
CH		 749extern int iwl4965_hw_reg_send_txpower(struct iwl4965_priv *priv);
750extern int iwl4965_hw_reg_set_txpower(struct iwl4965_priv *priv, s8 power);
751extern void iwl4965_hw_rx_statistics(struct iwl4965_priv *priv,
752 struct iwl4965_rx_mem_buffer *rxb);
753extern void iwl4965_disable_events(struct iwl4965_priv *priv);
754extern int iwl4965_get_temperature(const struct iwl4965_priv *priv);
5d08cd1d
CH		 755
756/**
bb8c093b 757 * iwl4965_hw_find_station - Find station id for a given BSSID
5d08cd1d
CH		 758 * @bssid: MAC address of station ID to find
759 *
760 * NOTE: This should not be hardware specific but the code has
761 * not yet been merged into a single common layer for managing the
762 * station tables.
763 */
bb8c093b 764extern u8 iwl4965_hw_find_station(struct iwl4965_priv *priv, const u8 *bssid);
5d08cd1d 765
bb8c093b
CH		 766extern int iwl4965_hw_channel_switch(struct iwl4965_priv *priv, u16 channel);
767extern int iwl4965_tx_queue_reclaim(struct iwl4965_priv *priv, int txq_id, int index);
5d08cd1d 768
bb8c093b 769struct iwl4965_priv;
b481de9c
ZY		 770
771/*
772 * Forward declare iwl-4965.c functions for iwl-base.c
773 */
bb8c093b
CH		 774extern int iwl4965_eeprom_acquire_semaphore(struct iwl4965_priv *priv);
775extern void iwl4965_eeprom_release_semaphore(struct iwl4965_priv *priv);
b481de9c 776
bb8c093b
CH		 777extern int iwl4965_tx_queue_update_wr_ptr(struct iwl4965_priv *priv,
778 struct iwl4965_tx_queue *txq,
b481de9c 779 u16 byte_cnt);
bb8c093b 780extern void iwl4965_add_station(struct iwl4965_priv *priv, const u8 *addr,
b481de9c 781 int is_ap);
bb8c093b
CH		 782extern void iwl4965_set_rxon_chain(struct iwl4965_priv *priv);
783extern int iwl4965_tx_cmd(struct iwl4965_priv *priv, struct iwl4965_cmd *out_cmd,
b481de9c
ZY		 784 u8 sta_id, dma_addr_t txcmd_phys,
785 struct ieee80211_hdr *hdr, u8 hdr_len,
786 struct ieee80211_tx_control *ctrl, void *sta_in);
bb8c093b
CH		 787extern int iwl4965_alive_notify(struct iwl4965_priv *priv);
788extern void iwl4965_update_rate_scaling(struct iwl4965_priv *priv, u8 mode);
bb8c093b
CH		 789extern void iwl4965_chain_noise_reset(struct iwl4965_priv *priv);
790extern void iwl4965_init_sensitivity(struct iwl4965_priv *priv, u8 flags,
b481de9c 791 u8 force);
bb8c093b 792extern int iwl4965_set_fat_chan_info(struct iwl4965_priv *priv, int phymode,
b481de9c 793 u16 channel,
bb8c093b 794 const struct iwl4965_eeprom_channel *eeprom_ch,
b481de9c 795 u8 fat_extension_channel);
bb8c093b 796extern void iwl4965_rf_kill_ct_config(struct iwl4965_priv *priv);
b481de9c 797
c8b0e6e1 798#ifdef CONFIG_IWL4965_HT
326eeee8
RR		 799extern void iwl4965_init_ht_hw_capab(struct ieee80211_ht_info *ht_info,
800 int mode);
fd105e79
RR		 801extern void iwl4965_set_rxon_ht(struct iwl4965_priv *priv,
802 struct iwl_ht_info *ht_info);
67d62035
RR		 803extern void iwl4965_set_ht_add_station(struct iwl4965_priv *priv, u8 index,
804 struct ieee80211_ht_info *sta_ht_inf);
c8b0e6e1 805#ifdef CONFIG_IWL4965_HT_AGG
bb8c093b 806extern int iwl4965_mac_ht_tx_agg_start(struct ieee80211_hw *hw, u8 *da,
b481de9c 807 u16 tid, u16 *start_seq_num);
bb8c093b 808extern int iwl4965_mac_ht_rx_agg_start(struct ieee80211_hw *hw, u8 *da,
b481de9c 809 u16 tid, u16 start_seq_num);
bb8c093b 810extern int iwl4965_mac_ht_rx_agg_stop(struct ieee80211_hw *hw, u8 *da,
b481de9c 811 u16 tid, int generator);
bb8c093b 812extern int iwl4965_mac_ht_tx_agg_stop(struct ieee80211_hw *hw, u8 *da,
b481de9c 813 u16 tid, int generator);
bb8c093b 814extern void iwl4965_turn_off_agg(struct iwl4965_priv *priv, u8 tid);
c8b0e6e1
CH		 815#endif /* CONFIG_IWL4965_HT_AGG */
816#endif /*CONFIG_IWL4965_HT */
b481de9c
ZY		 817/* Structures, enum, and defines specific to the 4965 */
818
819#define IWL4965_KW_SIZE 0x1000 /*4k */
820
bb8c093b 821struct iwl4965_kw {
b481de9c
ZY		 822 dma_addr_t dma_addr;
823 void *v_addr;
824 size_t size;
825};
826
827#define TID_QUEUE_CELL_SPACING 50 /*mS */
828#define TID_QUEUE_MAX_SIZE 20
829#define TID_ROUND_VALUE 5 /* mS */
830#define TID_MAX_LOAD_COUNT 8
831
832#define TID_MAX_TIME_DIFF ((TID_QUEUE_MAX_SIZE - 1) * TID_QUEUE_CELL_SPACING)
833#define TIME_WRAP_AROUND(x, y) (((y) > (x)) ? (y) - (x) : (0-(x)) + (y))
834
835#define TID_ALL_ENABLED 0x7f
836#define TID_ALL_SPECIFIED 0xff
837#define TID_AGG_TPT_THREHOLD 0x0
838
839#define IWL_CHANNEL_WIDTH_20MHZ 0
840#define IWL_CHANNEL_WIDTH_40MHZ 1
841
842#define IWL_MIMO_PS_STATIC 0
843#define IWL_MIMO_PS_NONE 3
844#define IWL_MIMO_PS_DYNAMIC 1
845#define IWL_MIMO_PS_INVALID 2
846
847#define IWL_OPERATION_MODE_AUTO 0
848#define IWL_OPERATION_MODE_HT_ONLY 1
849#define IWL_OPERATION_MODE_MIXED 2
850#define IWL_OPERATION_MODE_20MHZ 3
851
852#define IWL_EXT_CHANNEL_OFFSET_AUTO 0
853#define IWL_EXT_CHANNEL_OFFSET_ABOVE 1
854#define IWL_EXT_CHANNEL_OFFSET_ 2
855#define IWL_EXT_CHANNEL_OFFSET_BELOW 3
856#define IWL_EXT_CHANNEL_OFFSET_MAX 4
857
858#define NRG_NUM_PREV_STAT_L 20
859#define NUM_RX_CHAINS (3)
860
b481de9c 861#define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
b481de9c 862
bb8c093b 863struct iwl4965_traffic_load {
b481de9c
ZY		 864 unsigned long time_stamp;
865 u32 packet_count[TID_QUEUE_MAX_SIZE];
866 u8 queue_count;
867 u8 head;
868 u32 total;
869};
870
c8b0e6e1 871#ifdef CONFIG_IWL4965_HT_AGG
abceddb4
BC		 872/**
873 * struct iwl4965_agg_control
874 * @requested_ba: bit map of tids requesting aggregation/block-ack
875 * @granted_ba: bit map of tids granted aggregation/block-ack
876 */
bb8c093b 877struct iwl4965_agg_control {
b481de9c
ZY		 878 unsigned long next_retry;
879 u32 wait_for_agg_status;
880 u32 tid_retry;
881 u32 requested_ba;
882 u32 granted_ba;
883 u8 auto_agg;
884 u32 tid_traffic_load_threshold;
885 u32 ba_timeout;
bb8c093b 886 struct iwl4965_traffic_load traffic_load[TID_MAX_LOAD_COUNT];
b481de9c 887};
c8b0e6e1 888#endif /*CONFIG_IWL4965_HT_AGG */
b481de9c 889
bb8c093b 890struct iwl4965_lq_mngr {
c8b0e6e1 891#ifdef CONFIG_IWL4965_HT_AGG
bb8c093b 892 struct iwl4965_agg_control agg_ctrl;
b481de9c
ZY		 893#endif
894 spinlock_t lock;
895 s32 max_window_size;
896 s32 *expected_tpt;
897 u8 *next_higher_rate;
898 u8 *next_lower_rate;
899 unsigned long stamp;
900 unsigned long stamp_last;
901 u32 flush_time;
902 u32 tx_packets;
903 u8 lq_ready;
904};
905
906
907/* Sensitivity and chain noise calibration */
908#define INTERFERENCE_DATA_AVAILABLE __constant_cpu_to_le32(1)
909#define INITIALIZATION_VALUE 0xFFFF
910#define CAL_NUM_OF_BEACONS 20
911#define MAXIMUM_ALLOWED_PATHLOSS 15
912
b481de9c
ZY		 913#define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
914
915#define MAX_FA_OFDM 50
916#define MIN_FA_OFDM 5
917#define MAX_FA_CCK 50
918#define MIN_FA_CCK 5
919
920#define NRG_MIN_CCK 97
921#define NRG_MAX_CCK 0
922
923#define AUTO_CORR_MIN_OFDM 85
924#define AUTO_CORR_MIN_OFDM_MRC 170
925#define AUTO_CORR_MIN_OFDM_X1 105
926#define AUTO_CORR_MIN_OFDM_MRC_X1 220
927#define AUTO_CORR_MAX_OFDM 120
928#define AUTO_CORR_MAX_OFDM_MRC 210
929#define AUTO_CORR_MAX_OFDM_X1 140
930#define AUTO_CORR_MAX_OFDM_MRC_X1 270
931#define AUTO_CORR_STEP_OFDM 1
932
933#define AUTO_CORR_MIN_CCK (125)
934#define AUTO_CORR_MAX_CCK (200)
935#define AUTO_CORR_MIN_CCK_MRC 200
936#define AUTO_CORR_MAX_CCK_MRC 400
937#define AUTO_CORR_STEP_CCK 3
938#define AUTO_CORR_MAX_TH_CCK 160
939
b481de9c
ZY		 940#define NRG_DIFF 2
941#define NRG_STEP_CCK 2
942#define NRG_MARGIN 8
943#define MAX_NUMBER_CCK_NO_FA 100
944
945#define AUTO_CORR_CCK_MIN_VAL_DEF (125)
946
947#define CHAIN_A 0
948#define CHAIN_B 1
949#define CHAIN_C 2
950#define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
951#define ALL_BAND_FILTER 0xFF00
952#define IN_BAND_FILTER 0xFF
953#define MIN_AVERAGE_NOISE_MAX_VALUE 0xFFFFFFFF
954
bb8c093b 955enum iwl4965_false_alarm_state {
b481de9c
ZY		 956 IWL_FA_TOO_MANY = 0,
957 IWL_FA_TOO_FEW = 1,
958 IWL_FA_GOOD_RANGE = 2,
959};
960
bb8c093b 961enum iwl4965_chain_noise_state {
b481de9c
ZY		 962 IWL_CHAIN_NOISE_ALIVE = 0, /* must be 0 */
963 IWL_CHAIN_NOISE_ACCUMULATE = 1,
964 IWL_CHAIN_NOISE_CALIBRATED = 2,
965};
966
bb8c093b 967enum iwl4965_sensitivity_state {
b481de9c
ZY		 968 IWL_SENS_CALIB_ALLOWED = 0,
969 IWL_SENS_CALIB_NEED_REINIT = 1,
970};
971
bb8c093b 972enum iwl4965_calib_enabled_state {
b481de9c
ZY		 973 IWL_CALIB_DISABLED = 0, /* must be 0 */
974 IWL_CALIB_ENABLED = 1,
975};
976
977struct statistics_general_data {
978 u32 beacon_silence_rssi_a;
979 u32 beacon_silence_rssi_b;
980 u32 beacon_silence_rssi_c;
981 u32 beacon_energy_a;
982 u32 beacon_energy_b;
983 u32 beacon_energy_c;
984};
985
986/* Sensitivity calib data */
bb8c093b 987struct iwl4965_sensitivity_data {
b481de9c
ZY		 988 u32 auto_corr_ofdm;
989 u32 auto_corr_ofdm_mrc;
990 u32 auto_corr_ofdm_x1;
991 u32 auto_corr_ofdm_mrc_x1;
992 u32 auto_corr_cck;
993 u32 auto_corr_cck_mrc;
994
995 u32 last_bad_plcp_cnt_ofdm;
996 u32 last_fa_cnt_ofdm;
997 u32 last_bad_plcp_cnt_cck;
998 u32 last_fa_cnt_cck;
999
1000 u32 nrg_curr_state;
1001 u32 nrg_prev_state;
1002 u32 nrg_value[10];
1003 u8 nrg_silence_rssi[NRG_NUM_PREV_STAT_L];
1004 u32 nrg_silence_ref;
1005 u32 nrg_energy_idx;
1006 u32 nrg_silence_idx;
1007 u32 nrg_th_cck;
1008 s32 nrg_auto_corr_silence_diff;
1009 u32 num_in_cck_no_fa;
1010 u32 nrg_th_ofdm;
1011
1012 u8 state;
1013};
1014
1015/* Chain noise (differential Rx gain) calib data */
bb8c093b 1016struct iwl4965_chain_noise_data {
b481de9c
ZY		 1017 u8 state;
1018 u16 beacon_count;
1019 u32 chain_noise_a;
1020 u32 chain_noise_b;
1021 u32 chain_noise_c;
1022 u32 chain_signal_a;
1023 u32 chain_signal_b;
1024 u32 chain_signal_c;
1025 u8 disconn_array[NUM_RX_CHAINS];
1026 u8 delta_gain_code[NUM_RX_CHAINS];
1027 u8 radio_write;
1028};
1029
abceddb4
BC		 1030#define EEPROM_SEM_TIMEOUT 10 /* milliseconds */
1031#define EEPROM_SEM_RETRY_LIMIT 1000 /* number of attempts (not time) */
b481de9c 1032
5d08cd1d 1033
c8b0e6e1 1034#ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
5d08cd1d
CH		 1035
1036enum {
1037 MEASUREMENT_READY = (1 << 0),
1038 MEASUREMENT_ACTIVE = (1 << 1),
1039};
1040
1041#endif
1042
bb8c093b 1043struct iwl4965_priv {
5d08cd1d
CH		 1044
1045 /* ieee device used by generic ieee processing code */
1046 struct ieee80211_hw *hw;
1047 struct ieee80211_channel *ieee_channels;
1048 struct ieee80211_rate *ieee_rates;
76bb77e0 1049 struct ieee80211_conf *cache_conf;
5d08cd1d
CH		 1050
1051 /* temporary frame storage list */
1052 struct list_head free_frames;
1053 int frames_count;
1054
1055 u8 phymode;
1056 int alloc_rxb_skb;
1057
bb8c093b
CH		 1058 void (*rx_handlers[REPLY_MAX])(struct iwl4965_priv *priv,
1059 struct iwl4965_rx_mem_buffer *rxb);
5d08cd1d
CH		 1060
1061 const struct ieee80211_hw_mode *modes;
1062
c8b0e6e1 1063#ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
5d08cd1d 1064 /* spectrum measurement report caching */
bb8c093b 1065 struct iwl4965_spectrum_notification measure_report;
5d08cd1d
CH		 1066 u8 measurement_status;
1067#endif
1068 /* ucode beacon time */
1069 u32 ucode_beacon_time;
1070
bb8c093b 1071 /* we allocate array of iwl4965_channel_info for NIC's valid channels.
5d08cd1d 1072 * Access via channel # using indirect index array */
bb8c093b 1073 struct iwl4965_channel_info *channel_info; /* channel info array */
5d08cd1d
CH		 1074 u8 channel_count; /* # of channels */
1075
1076 /* each calibration channel group in the EEPROM has a derived
1077 * clip setting for each rate. */
bb8c093b 1078 const struct iwl4965_clip_group clip_groups[5];
5d08cd1d
CH		 1079
1080 /* thermal calibration */
1081 s32 temperature; /* degrees Kelvin */
1082 s32 last_temperature;
1083
1084 /* Scan related variables */
1085 unsigned long last_scan_jiffies;
7878a5a4 1086 unsigned long next_scan_jiffies;
5d08cd1d
CH		 1087 unsigned long scan_start;
1088 unsigned long scan_pass_start;
1089 unsigned long scan_start_tsf;
1090 int scan_bands;
1091 int one_direct_scan;
1092 u8 direct_ssid_len;
1093 u8 direct_ssid[IW_ESSID_MAX_SIZE];
bb8c093b 1094 struct iwl4965_scan_cmd *scan;
5d08cd1d
CH		 1095 u8 only_active_channel;
1096
1097 /* spinlock */
1098 spinlock_t lock; /* protect general shared data */
1099 spinlock_t hcmd_lock; /* protect hcmd */
1100 struct mutex mutex;
1101
1102 /* basic pci-network driver stuff */
1103 struct pci_dev *pci_dev;
1104
1105 /* pci hardware address support */
1106 void __iomem *hw_base;
1107
1108 /* uCode images, save to reload in case of failure */
1109 struct fw_desc ucode_code; /* runtime inst */
1110 struct fw_desc ucode_data; /* runtime data original */
1111 struct fw_desc ucode_data_backup; /* runtime data save/restore */
1112 struct fw_desc ucode_init; /* initialization inst */
1113 struct fw_desc ucode_init_data; /* initialization data */
1114 struct fw_desc ucode_boot; /* bootstrap inst */
1115
1116
bb8c093b 1117 struct iwl4965_rxon_time_cmd rxon_timing;
5d08cd1d
CH		 1118
1119 /* We declare this const so it can only be
1120 * changed via explicit cast within the
1121 * routines that actually update the physical
1122 * hardware */
bb8c093b
CH		 1123 const struct iwl4965_rxon_cmd active_rxon;
1124 struct iwl4965_rxon_cmd staging_rxon;
5d08cd1d
CH		 1125
1126 int error_recovering;
bb8c093b 1127 struct iwl4965_rxon_cmd recovery_rxon;
5d08cd1d
CH		 1128
1129 /* 1st responses from initialize and runtime uCode images.
1130 * 4965's initialize alive response contains some calibration data. */
bb8c093b
CH		 1131 struct iwl4965_init_alive_resp card_alive_init;
1132 struct iwl4965_alive_resp card_alive;
5d08cd1d
CH		 1133
1134#ifdef LED
1135 /* LED related variables */
bb8c093b 1136 struct iwl4965_activity_blink activity;
5d08cd1d
CH		 1137 unsigned long led_packets;
1138 int led_state;
1139#endif
1140
1141 u16 active_rate;
1142 u16 active_rate_basic;
1143
1144 u8 call_post_assoc_from_beacon;
1145 u8 assoc_station_added;
1146 u8 use_ant_b_for_management_frame; /* Tx antenna selection */
5d08cd1d 1147 u8 valid_antenna; /* Bit mask of antennas actually connected */
c8b0e6e1 1148#ifdef CONFIG_IWL4965_SENSITIVITY
bb8c093b
CH		 1149 struct iwl4965_sensitivity_data sensitivity_data;
1150 struct iwl4965_chain_noise_data chain_noise_data;
5d08cd1d
CH		 1151 u8 start_calib;
1152 __le16 sensitivity_tbl[HD_TABLE_SIZE];
c8b0e6e1 1153#endif /*CONFIG_IWL4965_SENSITIVITY*/
5d08cd1d 1154
c8b0e6e1 1155#ifdef CONFIG_IWL4965_HT
9e0cc6de 1156 struct iwl_ht_info current_ht_config;
5d08cd1d 1157#endif
5d08cd1d
CH		 1158 u8 last_phy_res[100];
1159
1160 /* Rate scaling data */
bb8c093b 1161 struct iwl4965_lq_mngr lq_mngr;
5d08cd1d
CH		 1162
1163 /* Rate scaling data */
1164 s8 data_retry_limit;
1165 u8 retry_rate;
1166
1167 wait_queue_head_t wait_command_queue;
1168
1169 int activity_timer_active;
1170
1171 /* Rx and Tx DMA processing queues */
bb8c093b
CH		 1172 struct iwl4965_rx_queue rxq;
1173 struct iwl4965_tx_queue txq[IWL_MAX_NUM_QUEUES];
5d08cd1d 1174 unsigned long txq_ctx_active_msk;
bb8c093b 1175 struct iwl4965_kw kw; /* keep warm address */
5d08cd1d
CH		 1176 u32 scd_base_addr; /* scheduler sram base address */
1177
1178 unsigned long status;
1179 u32 config;
1180
1181 int last_rx_rssi; /* From Rx packet statisitics */
1182 int last_rx_noise; /* From beacon statistics */
1183
bb8c093b 1184 struct iwl4965_power_mgr power_data;
5d08cd1d 1185
bb8c093b 1186 struct iwl4965_notif_statistics statistics;
5d08cd1d
CH		 1187 unsigned long last_statistics_time;
1188
1189 /* context information */
1190 u8 essid[IW_ESSID_MAX_SIZE];
1191 u8 essid_len;
1192 u16 rates_mask;
1193
1194 u32 power_mode;
1195 u32 antenna;
1196 u8 bssid[ETH_ALEN];
1197 u16 rts_threshold;
1198 u8 mac_addr[ETH_ALEN];
1199
1200 /*station table variables */
1201 spinlock_t sta_lock;
1202 int num_stations;
bb8c093b 1203 struct iwl4965_station_entry stations[IWL_STATION_COUNT];
5d08cd1d
CH		 1204
1205 /* Indication if ieee80211_ops->open has been called */
1206 int is_open;
1207
1208 u8 mac80211_registered;
1209 int is_abg;
1210
1211 u32 notif_missed_beacons;
1212
1213 /* Rx'd packet timing information */
1214 u32 last_beacon_time;
1215 u64 last_tsf;
1216
1217 /* Duplicate packet detection */
1218 u16 last_seq_num;
1219 u16 last_frag_num;
1220 unsigned long last_packet_time;
bc47279f
BC		 1221
1222 /* Hash table for finding stations in IBSS network */
5d08cd1d
CH		 1223 struct list_head ibss_mac_hash[IWL_IBSS_MAC_HASH_SIZE];
1224
1225 /* eeprom */
bb8c093b 1226 struct iwl4965_eeprom eeprom;
5d08cd1d
CH		 1227
1228 int iw_mode;
1229
1230 struct sk_buff *ibss_beacon;
1231
1232 /* Last Rx'd beacon timestamp */
1233 u32 timestamp0;
1234 u32 timestamp1;
1235 u16 beacon_int;
bb8c093b 1236 struct iwl4965_driver_hw_info hw_setting;
5d08cd1d
CH		 1237 int interface_id;
1238
1239 /* Current association information needed to configure the
1240 * hardware */
1241 u16 assoc_id;
1242 u16 assoc_capability;
1243 u8 ps_mode;
1244
c8b0e6e1 1245#ifdef CONFIG_IWL4965_QOS
bb8c093b 1246 struct iwl4965_qos_info qos_data;
c8b0e6e1 1247#endif /*CONFIG_IWL4965_QOS */
5d08cd1d
CH		 1248
1249 struct workqueue_struct *workqueue;
1250
1251 struct work_struct up;
1252 struct work_struct restart;
1253 struct work_struct calibrated_work;
1254 struct work_struct scan_completed;
1255 struct work_struct rx_replenish;
1256 struct work_struct rf_kill;
1257 struct work_struct abort_scan;
1258 struct work_struct update_link_led;
1259 struct work_struct auth_work;
1260 struct work_struct report_work;
1261 struct work_struct request_scan;
1262 struct work_struct beacon_update;
1263
1264 struct tasklet_struct irq_tasklet;
1265
1266 struct delayed_work init_alive_start;
1267 struct delayed_work alive_start;
1268 struct delayed_work activity_timer;
1269 struct delayed_work thermal_periodic;
1270 struct delayed_work gather_stats;
1271 struct delayed_work scan_check;
1272 struct delayed_work post_associate;
1273
1274#define IWL_DEFAULT_TX_POWER 0x0F
1275 s8 user_txpower_limit;
1276 s8 max_channel_txpower_limit;
1277
1278#ifdef CONFIG_PM
1279 u32 pm_state[16];
1280#endif
1281
c8b0e6e1 1282#ifdef CONFIG_IWL4965_DEBUG
5d08cd1d
CH		 1283 /* debugging info */
1284 u32 framecnt_to_us;
1285 atomic_t restrict_refcnt;
1286#endif
1287
1288 struct work_struct txpower_work;
c8b0e6e1 1289#ifdef CONFIG_IWL4965_SENSITIVITY
5d08cd1d
CH		 1290 struct work_struct sensitivity_work;
1291#endif
1292 struct work_struct statistics_work;
1293 struct timer_list statistics_periodic;
1294
c8b0e6e1 1295#ifdef CONFIG_IWL4965_HT_AGG
5d08cd1d
CH		 1296 struct work_struct agg_work;
1297#endif
bb8c093b 1298}; /*iwl4965_priv */
5d08cd1d 1299
bb8c093b 1300static inline int iwl4965_is_associated(struct iwl4965_priv *priv)
5d08cd1d
CH		 1301{
1302 return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
1303}
1304
bb8c093b 1305static inline int is_channel_valid(const struct iwl4965_channel_info *ch_info)
5d08cd1d
CH		 1306{
1307 if (ch_info == NULL)
1308 return 0;
1309 return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
1310}
1311
bb8c093b 1312static inline int is_channel_narrow(const struct iwl4965_channel_info *ch_info)
5d08cd1d
CH		 1313{
1314 return (ch_info->flags & EEPROM_CHANNEL_NARROW) ? 1 : 0;
1315}
1316
bb8c093b 1317static inline int is_channel_radar(const struct iwl4965_channel_info *ch_info)
5d08cd1d
CH		 1318{
1319 return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
1320}
1321
bb8c093b 1322static inline u8 is_channel_a_band(const struct iwl4965_channel_info *ch_info)
5d08cd1d
CH		 1323{
1324 return ch_info->phymode == MODE_IEEE80211A;
1325}
1326
bb8c093b 1327static inline u8 is_channel_bg_band(const struct iwl4965_channel_info *ch_info)
5d08cd1d
CH		 1328{
1329 return ((ch_info->phymode == MODE_IEEE80211B) ||
1330 (ch_info->phymode == MODE_IEEE80211G));
1331}
1332
bb8c093b 1333static inline int is_channel_passive(const struct iwl4965_channel_info *ch)
5d08cd1d
CH		 1334{
1335 return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
1336}
1337
bb8c093b 1338static inline int is_channel_ibss(const struct iwl4965_channel_info *ch)
5d08cd1d
CH		 1339{
1340 return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
1341}
1342
bb8c093b
CH		 1343extern const struct iwl4965_channel_info *iwl4965_get_channel_info(
1344 const struct iwl4965_priv *priv, int phymode, u16 channel);
5d08cd1d 1345
bb8c093b 1346/* Requires full declaration of iwl4965_priv before including */
5d08cd1d
CH		 1347#include "iwl-4965-io.h"
1348
bb8c093b 1349#endif /* __iwl4965_4965_h__ */
Linux kernel - Deliverables
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