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iwlwifi: document 4965 rate scaling
[deliverable/linux.git] / drivers / net / wireless / iwlwifi / iwl-4965.h
CommitLineData
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
bb8c093b 39struct iwl4965_priv;
5d08cd1d
CH		 40
41/* Hardware specific file defines the PCI IDs table for that hardware module */
bb8c093b 42extern struct pci_device_id iwl4965_hw_card_ids[];
5d08cd1d
CH		 43
44#define DRV_NAME "iwl4965"
45#include "iwl-4965-hw.h"
46#include "iwl-prph.h"
47#include "iwl-4965-debug.h"
48
49/* Default noise level to report when noise measurement is not available.
50 * This may be because we're:
51 * 1) Not associated (4965, no beacon statistics being sent to driver)
52 * 2) Scanning (noise measurement does not apply to associated channel)
53 * 3) Receiving CCK (3945 delivers noise info only for OFDM frames)
54 * Use default noise value of -127 ... this is below the range of measurable
55 * Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
56 * Also, -127 works better than 0 when averaging frames with/without
57 * noise info (e.g. averaging might be done in app); measured dBm values are
58 * always negative ... using a negative value as the default keeps all
59 * averages within an s8's (used in some apps) range of negative values. */
60#define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
61
62/* Module parameters accessible from iwl-*.c */
bb8c093b
CH		 63extern int iwl4965_param_hwcrypto;
64extern int iwl4965_param_queues_num;
5d08cd1d 65
bb8c093b 66enum iwl4965_antenna {
5d08cd1d
CH		 67 IWL_ANTENNA_DIVERSITY,
68 IWL_ANTENNA_MAIN,
69 IWL_ANTENNA_AUX
70};
71
72/*
73 * RTS threshold here is total size [2347] minus 4 FCS bytes
74 * Per spec:
75 * a value of 0 means RTS on all data/management packets
76 * a value > max MSDU size means no RTS
77 * else RTS for data/management frames where MPDU is larger
78 * than RTS value.
79 */
80#define DEFAULT_RTS_THRESHOLD 2347U
81#define MIN_RTS_THRESHOLD 0U
82#define MAX_RTS_THRESHOLD 2347U
83#define MAX_MSDU_SIZE 2304U
84#define MAX_MPDU_SIZE 2346U
85#define DEFAULT_BEACON_INTERVAL 100U
86#define DEFAULT_SHORT_RETRY_LIMIT 7U
87#define DEFAULT_LONG_RETRY_LIMIT 4U
88
bb8c093b 89struct iwl4965_rx_mem_buffer {
5d08cd1d
CH		 90 dma_addr_t dma_addr;
91 struct sk_buff *skb;
92 struct list_head list;
93};
94
bb8c093b 95struct iwl4965_rt_rx_hdr {
5d08cd1d
CH		 96 struct ieee80211_radiotap_header rt_hdr;
97 __le64 rt_tsf; /* TSF */
98 u8 rt_flags; /* radiotap packet flags */
99 u8 rt_rate; /* rate in 500kb/s */
100 __le16 rt_channelMHz; /* channel in MHz */
101 __le16 rt_chbitmask; /* channel bitfield */
102 s8 rt_dbmsignal; /* signal in dBm, kluged to signed */
103 s8 rt_dbmnoise;
104 u8 rt_antenna; /* antenna number */
105 u8 payload[0]; /* payload... */
106} __attribute__ ((packed));
107
bb8c093b 108struct iwl4965_rt_tx_hdr {
5d08cd1d
CH		 109 struct ieee80211_radiotap_header rt_hdr;
110 u8 rt_rate; /* rate in 500kb/s */
111 __le16 rt_channel; /* channel in mHz */
112 __le16 rt_chbitmask; /* channel bitfield */
113 s8 rt_dbmsignal; /* signal in dBm, kluged to signed */
114 u8 rt_antenna; /* antenna number */
115 u8 payload[0]; /* payload... */
116} __attribute__ ((packed));
117
118/*
119 * Generic queue structure
120 *
121 * Contains common data for Rx and Tx queues
122 */
bb8c093b 123struct iwl4965_queue {
5d08cd1d
CH		 124 int n_bd; /* number of BDs in this queue */
125 int write_ptr; /* 1-st empty entry (index) host_w*/
126 int read_ptr; /* last used entry (index) host_r*/
127 dma_addr_t dma_addr; /* physical addr for BD's */
128 int n_window; /* safe queue window */
129 u32 id;
130 int low_mark; /* low watermark, resume queue if free
131 * space more than this */
132 int high_mark; /* high watermark, stop queue if free
133 * space less than this */
134} __attribute__ ((packed));
135
136#define MAX_NUM_OF_TBS (20)
137
bc47279f 138/* One for each TFD */
bb8c093b 139struct iwl4965_tx_info {
5d08cd1d
CH		 140 struct ieee80211_tx_status status;
141 struct sk_buff *skb[MAX_NUM_OF_TBS];
142};
143
144/**
bb8c093b 145 * struct iwl4965_tx_queue - Tx Queue for DMA
bc47279f
BC		 146 * @q: generic Rx/Tx queue descriptor
147 * @bd: base of circular buffer of TFDs
148 * @cmd: array of command/Tx buffers
149 * @dma_addr_cmd: physical address of cmd/tx buffer array
150 * @txb: array of per-TFD driver data
151 * @need_update: indicates need to update read/write index
152 * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
5d08cd1d 153 *
bc47279f
BC		 154 * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
155 * descriptors) and required locking structures.
5d08cd1d 156 */
bb8c093b
CH		 157struct iwl4965_tx_queue {
158 struct iwl4965_queue q;
159 struct iwl4965_tfd_frame *bd;
160 struct iwl4965_cmd *cmd;
5d08cd1d 161 dma_addr_t dma_addr_cmd;
bb8c093b 162 struct iwl4965_tx_info *txb;
5d08cd1d
CH		 163 int need_update;
164 int sched_retry;
165 int active;
166};
167
168#define IWL_NUM_SCAN_RATES (2)
169
bb8c093b 170struct iwl4965_channel_tgd_info {
5d08cd1d
CH		 171 u8 type;
172 s8 max_power;
173};
174
bb8c093b 175struct iwl4965_channel_tgh_info {
5d08cd1d
CH		 176 s64 last_radar_time;
177};
178
179/* current Tx power values to use, one for each rate for each channel.
180 * requested power is limited by:
181 * -- regulatory EEPROM limits for this channel
182 * -- hardware capabilities (clip-powers)
183 * -- spectrum management
184 * -- user preference (e.g. iwconfig)
185 * when requested power is set, base power index must also be set. */
bb8c093b
CH		 186struct iwl4965_channel_power_info {
187 struct iwl4965_tx_power tpc; /* actual radio and DSP gain settings */
5d08cd1d
CH		 188 s8 power_table_index; /* actual (compenst'd) index into gain table */
189 s8 base_power_index; /* gain index for power at factory temp. */
190 s8 requested_power; /* power (dBm) requested for this chnl/rate */
191};
192
193/* current scan Tx power values to use, one for each scan rate for each
194 * channel. */
bb8c093b
CH		 195struct iwl4965_scan_power_info {
196 struct iwl4965_tx_power tpc; /* actual radio and DSP gain settings */
5d08cd1d
CH		 197 s8 power_table_index; /* actual (compenst'd) index into gain table */
198 s8 requested_power; /* scan pwr (dBm) requested for chnl/rate */
199};
200
fcd427bb
BC		 201/* For fat_extension_channel */
202enum {
203 HT_IE_EXT_CHANNEL_NONE = 0,
204 HT_IE_EXT_CHANNEL_ABOVE,
205 HT_IE_EXT_CHANNEL_INVALID,
206 HT_IE_EXT_CHANNEL_BELOW,
207 HT_IE_EXT_CHANNEL_MAX
208};
209
5d08cd1d
CH		 210/*
211 * One for each channel, holds all channel setup data
212 * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
213 * with one another!
214 */
215#define IWL4965_MAX_RATE (33)
216
bb8c093b
CH		 217struct iwl4965_channel_info {
218 struct iwl4965_channel_tgd_info tgd;
219 struct iwl4965_channel_tgh_info tgh;
fcd427bb
BC		 220 struct iwl4965_eeprom_channel eeprom; /* EEPROM regulatory limit */
221 struct iwl4965_eeprom_channel fat_eeprom; /* EEPROM regulatory limit for
222 * FAT channel */
5d08cd1d
CH		 223
224 u8 channel; /* channel number */
225 u8 flags; /* flags copied from EEPROM */
226 s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
fcd427bb 227 s8 curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) limit */
5d08cd1d
CH		 228 s8 min_power; /* always 0 */
229 s8 scan_power; /* (dBm) regul. eeprom, direct scans, any rate */
230
231 u8 group_index; /* 0-4, maps channel to group1/2/3/4/5 */
232 u8 band_index; /* 0-4, maps channel to band1/2/3/4/5 */
233 u8 phymode; /* MODE_IEEE80211{A,B,G} */
234
235 /* Radio/DSP gain settings for each "normal" data Tx rate.
236 * These include, in addition to RF and DSP gain, a few fields for
237 * remembering/modifying gain settings (indexes). */
bb8c093b 238 struct iwl4965_channel_power_info power_info[IWL4965_MAX_RATE];
5d08cd1d
CH		 239
240 /* FAT channel info */
241 s8 fat_max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
242 s8 fat_curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) */
243 s8 fat_min_power; /* always 0 */
244 s8 fat_scan_power; /* (dBm) eeprom, direct scans, any rate */
245 u8 fat_flags; /* flags copied from EEPROM */
fcd427bb 246 u8 fat_extension_channel; /* HT_IE_EXT_CHANNEL_* */
5d08cd1d
CH		 247
248 /* Radio/DSP gain settings for each scan rate, for directed scans. */
bb8c093b 249 struct iwl4965_scan_power_info scan_pwr_info[IWL_NUM_SCAN_RATES];
5d08cd1d
CH		 250};
251
bb8c093b 252struct iwl4965_clip_group {
5d08cd1d
CH		 253 /* maximum power level to prevent clipping for each rate, derived by
254 * us from this band's saturation power in EEPROM */
255 const s8 clip_powers[IWL_MAX_RATES];
256};
257
258#include "iwl-4965-rs.h"
259
260#define IWL_TX_FIFO_AC0 0
261#define IWL_TX_FIFO_AC1 1
262#define IWL_TX_FIFO_AC2 2
263#define IWL_TX_FIFO_AC3 3
264#define IWL_TX_FIFO_HCCA_1 5
265#define IWL_TX_FIFO_HCCA_2 6
266#define IWL_TX_FIFO_NONE 7
267
268/* Minimum number of queues. MAX_NUM is defined in hw specific files */
269#define IWL_MIN_NUM_QUEUES 4
270
271/* Power management (not Tx power) structures */
272
bb8c093b
CH		 273struct iwl4965_power_vec_entry {
274 struct iwl4965_powertable_cmd cmd;
5d08cd1d
CH		 275 u8 no_dtim;
276};
277#define IWL_POWER_RANGE_0 (0)
278#define IWL_POWER_RANGE_1 (1)
279
280#define IWL_POWER_MODE_CAM 0x00 /* Continuously Aware Mode, always on */
281#define IWL_POWER_INDEX_3 0x03
282#define IWL_POWER_INDEX_5 0x05
283#define IWL_POWER_AC 0x06
284#define IWL_POWER_BATTERY 0x07
285#define IWL_POWER_LIMIT 0x07
286#define IWL_POWER_MASK 0x0F
287#define IWL_POWER_ENABLED 0x10
288#define IWL_POWER_LEVEL(x) ((x) & IWL_POWER_MASK)
289
bb8c093b 290struct iwl4965_power_mgr {
5d08cd1d 291 spinlock_t lock;
bb8c093b
CH		 292 struct iwl4965_power_vec_entry pwr_range_0[IWL_POWER_AC];
293 struct iwl4965_power_vec_entry pwr_range_1[IWL_POWER_AC];
5d08cd1d
CH		 294 u8 active_index;
295 u32 dtim_val;
296};
297
298#define IEEE80211_DATA_LEN 2304
299#define IEEE80211_4ADDR_LEN 30
300#define IEEE80211_HLEN (IEEE80211_4ADDR_LEN)
301#define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
302
bb8c093b 303struct iwl4965_frame {
5d08cd1d
CH		 304 union {
305 struct ieee80211_hdr frame;
bb8c093b 306 struct iwl4965_tx_beacon_cmd beacon;
5d08cd1d
CH		 307 u8 raw[IEEE80211_FRAME_LEN];
308 u8 cmd[360];
309 } u;
310 struct list_head list;
311};
312
313#define SEQ_TO_QUEUE(x) ((x >> 8) & 0xbf)
314#define QUEUE_TO_SEQ(x) ((x & 0xbf) << 8)
315#define SEQ_TO_INDEX(x) (x & 0xff)
316#define INDEX_TO_SEQ(x) (x & 0xff)
317#define SEQ_HUGE_FRAME (0x4000)
318#define SEQ_RX_FRAME __constant_cpu_to_le16(0x8000)
319#define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
320#define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
321#define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
322
323enum {
324 /* CMD_SIZE_NORMAL = 0, */
325 CMD_SIZE_HUGE = (1 << 0),
326 /* CMD_SYNC = 0, */
327 CMD_ASYNC = (1 << 1),
328 /* CMD_NO_SKB = 0, */
329 CMD_WANT_SKB = (1 << 2),
330};
331
bb8c093b
CH		 332struct iwl4965_cmd;
333struct iwl4965_priv;
5d08cd1d 334
bb8c093b
CH		 335struct iwl4965_cmd_meta {
336 struct iwl4965_cmd_meta *source;
5d08cd1d
CH		 337 union {
338 struct sk_buff *skb;
bb8c093b
CH		 339 int (*callback)(struct iwl4965_priv *priv,
340 struct iwl4965_cmd *cmd, struct sk_buff *skb);
5d08cd1d
CH		 341 } __attribute__ ((packed)) u;
342
343 /* The CMD_SIZE_HUGE flag bit indicates that the command
344 * structure is stored at the end of the shared queue memory. */
345 u32 flags;
346
347} __attribute__ ((packed));
348
bc47279f
BC		 349/**
350 * struct iwl4965_cmd
351 *
352 * For allocation of the command and tx queues, this establishes the overall
353 * size of the largest command we send to uCode, except for a scan command
354 * (which is relatively huge; space is allocated separately).
355 */
bb8c093b 356struct iwl4965_cmd {
bc47279f
BC		 357 struct iwl4965_cmd_meta meta; /* driver data */
358 struct iwl4965_cmd_header hdr; /* uCode API */
5d08cd1d 359 union {
bb8c093b
CH		 360 struct iwl4965_addsta_cmd addsta;
361 struct iwl4965_led_cmd led;
5d08cd1d
CH		 362 u32 flags;
363 u8 val8;
364 u16 val16;
365 u32 val32;
bb8c093b
CH		 366 struct iwl4965_bt_cmd bt;
367 struct iwl4965_rxon_time_cmd rxon_time;
368 struct iwl4965_powertable_cmd powertable;
369 struct iwl4965_qosparam_cmd qosparam;
370 struct iwl4965_tx_cmd tx;
371 struct iwl4965_tx_beacon_cmd tx_beacon;
372 struct iwl4965_rxon_assoc_cmd rxon_assoc;
5d08cd1d
CH		 373 u8 *indirect;
374 u8 payload[360];
375 } __attribute__ ((packed)) cmd;
376} __attribute__ ((packed));
377
bb8c093b 378struct iwl4965_host_cmd {
5d08cd1d
CH		 379 u8 id;
380 u16 len;
bb8c093b 381 struct iwl4965_cmd_meta meta;
5d08cd1d
CH		 382 const void *data;
383};
384
bb8c093b
CH		 385#define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl4965_cmd) - \
386 sizeof(struct iwl4965_cmd_meta))
5d08cd1d
CH		 387
388/*
389 * RX related structures and functions
390 */
391#define RX_FREE_BUFFERS 64
392#define RX_LOW_WATERMARK 8
393
394#define SUP_RATE_11A_MAX_NUM_CHANNELS 8
395#define SUP_RATE_11B_MAX_NUM_CHANNELS 4
396#define SUP_RATE_11G_MAX_NUM_CHANNELS 12
397
398/**
bb8c093b 399 * struct iwl4965_rx_queue - Rx queue
5d08cd1d
CH		 400 * @processed: Internal index to last handled Rx packet
401 * @read: Shared index to newest available Rx buffer
402 * @write: Shared index to oldest written Rx packet
403 * @free_count: Number of pre-allocated buffers in rx_free
404 * @rx_free: list of free SKBs for use
405 * @rx_used: List of Rx buffers with no SKB
406 * @need_update: flag to indicate we need to update read/write index
407 *
bb8c093b 408 * NOTE: rx_free and rx_used are used as a FIFO for iwl4965_rx_mem_buffers
5d08cd1d 409 */
bb8c093b 410struct iwl4965_rx_queue {
5d08cd1d
CH		 411 __le32 *bd;
412 dma_addr_t dma_addr;
bb8c093b
CH		 413 struct iwl4965_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
414 struct iwl4965_rx_mem_buffer *queue[RX_QUEUE_SIZE];
5d08cd1d
CH		 415 u32 processed;
416 u32 read;
417 u32 write;
418 u32 free_count;
419 struct list_head rx_free;
420 struct list_head rx_used;
421 int need_update;
422 spinlock_t lock;
423};
424
425#define IWL_SUPPORTED_RATES_IE_LEN 8
426
427#define SCAN_INTERVAL 100
428
429#define MAX_A_CHANNELS 252
430#define MIN_A_CHANNELS 7
431
432#define MAX_B_CHANNELS 14
433#define MIN_B_CHANNELS 1
434
435#define STATUS_HCMD_ACTIVE 0 /* host command in progress */
436#define STATUS_INT_ENABLED 1
437#define STATUS_RF_KILL_HW 2
438#define STATUS_RF_KILL_SW 3
439#define STATUS_INIT 4
440#define STATUS_ALIVE 5
441#define STATUS_READY 6
442#define STATUS_TEMPERATURE 7
443#define STATUS_GEO_CONFIGURED 8
444#define STATUS_EXIT_PENDING 9
445#define STATUS_IN_SUSPEND 10
446#define STATUS_STATISTICS 11
447#define STATUS_SCANNING 12
448#define STATUS_SCAN_ABORTING 13
449#define STATUS_SCAN_HW 14
450#define STATUS_POWER_PMI 15
451#define STATUS_FW_ERROR 16
452
453#define MAX_TID_COUNT 9
454
455#define IWL_INVALID_RATE 0xFF
456#define IWL_INVALID_VALUE -1
457
c8b0e6e1
CH		 458#ifdef CONFIG_IWL4965_HT
459#ifdef CONFIG_IWL4965_HT_AGG
bc47279f
BC		 460/**
461 * struct iwl4965_ht_agg -- aggregation status while waiting for block-ack
462 * @txq_id: Tx queue used for Tx attempt
463 * @frame_count: # frames attempted by Tx command
464 * @wait_for_ba: Expect block-ack before next Tx reply
465 * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window
466 * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window
467 * @bitmap1: High order, one bit for each frame pending ACK in Tx window
468 * @rate_n_flags: Rate at which Tx was attempted
469 *
470 * If REPLY_TX indicates that aggregation was attempted, driver must wait
471 * for block ack (REPLY_COMPRESSED_BA). This struct stores tx reply info
472 * until block ack arrives.
473 */
bb8c093b 474struct iwl4965_ht_agg {
5d08cd1d
CH		 475 u16 txq_id;
476 u16 frame_count;
477 u16 wait_for_ba;
478 u16 start_idx;
479 u32 bitmap0;
480 u32 bitmap1;
481 u32 rate_n_flags;
482};
c8b0e6e1
CH		 483#endif /* CONFIG_IWL4965_HT_AGG */
484#endif /* CONFIG_IWL4965_HT */
5d08cd1d 485
bb8c093b 486struct iwl4965_tid_data {
5d08cd1d 487 u16 seq_number;
c8b0e6e1
CH		 488#ifdef CONFIG_IWL4965_HT
489#ifdef CONFIG_IWL4965_HT_AGG
bb8c093b 490 struct iwl4965_ht_agg agg;
c8b0e6e1
CH		 491#endif /* CONFIG_IWL4965_HT_AGG */
492#endif /* CONFIG_IWL4965_HT */
5d08cd1d
CH		 493};
494
bb8c093b 495struct iwl4965_hw_key {
5d08cd1d
CH		 496 enum ieee80211_key_alg alg;
497 int keylen;
498 u8 key[32];
499};
500
bb8c093b 501union iwl4965_ht_rate_supp {
5d08cd1d
CH		 502 u16 rates;
503 struct {
504 u8 siso_rate;
505 u8 mimo_rate;
506 };
507};
508
c8b0e6e1 509#ifdef CONFIG_IWL4965_HT
5d08cd1d
CH		 510#define CFG_HT_RX_AMPDU_FACTOR_DEF (0x3)
511#define HT_IE_MAX_AMSDU_SIZE_4K (0)
512#define CFG_HT_MPDU_DENSITY_2USEC (0x5)
513#define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_2USEC
514
515struct sta_ht_info {
516 u8 is_ht;
517 u16 rx_mimo_ps_mode;
518 u16 tx_mimo_ps_mode;
519 u16 control_channel;
520 u8 max_amsdu_size;
521 u8 ampdu_factor;
522 u8 mpdu_density;
523 u8 operating_mode;
524 u8 supported_chan_width;
525 u8 extension_chan_offset;
526 u8 is_green_field;
77626355 527 u8 sgf; /* HT_SHORT_GI_* short guard interval */
5d08cd1d
CH		 528 u8 supp_rates[16];
529 u8 tx_chan_width;
530 u8 chan_width_cap;
531};
c8b0e6e1 532#endif /*CONFIG_IWL4965_HT */
5d08cd1d 533
c8b0e6e1 534#ifdef CONFIG_IWL4965_QOS
5d08cd1d 535
bb8c093b 536union iwl4965_qos_capabity {
5d08cd1d
CH		 537 struct {
538 u8 edca_count:4; /* bit 0-3 */
539 u8 q_ack:1; /* bit 4 */
540 u8 queue_request:1; /* bit 5 */
541 u8 txop_request:1; /* bit 6 */
542 u8 reserved:1; /* bit 7 */
543 } q_AP;
544 struct {
545 u8 acvo_APSD:1; /* bit 0 */
546 u8 acvi_APSD:1; /* bit 1 */
547 u8 ac_bk_APSD:1; /* bit 2 */
548 u8 ac_be_APSD:1; /* bit 3 */
549 u8 q_ack:1; /* bit 4 */
550 u8 max_len:2; /* bit 5-6 */
551 u8 more_data_ack:1; /* bit 7 */
552 } q_STA;
553 u8 val;
554};
555
556/* QoS structures */
bb8c093b 557struct iwl4965_qos_info {
5d08cd1d
CH		 558 int qos_enable;
559 int qos_active;
bb8c093b
CH		 560 union iwl4965_qos_capabity qos_cap;
561 struct iwl4965_qosparam_cmd def_qos_parm;
5d08cd1d 562};
c8b0e6e1 563#endif /*CONFIG_IWL4965_QOS */
5d08cd1d
CH		 564
565#define STA_PS_STATUS_WAKE 0
566#define STA_PS_STATUS_SLEEP 1
567
bb8c093b
CH		 568struct iwl4965_station_entry {
569 struct iwl4965_addsta_cmd sta;
570 struct iwl4965_tid_data tid[MAX_TID_COUNT];
5d08cd1d
CH		 571 u8 used;
572 u8 ps_status;
bb8c093b 573 struct iwl4965_hw_key keyinfo;
5d08cd1d
CH		 574};
575
576/* one for each uCode image (inst/data, boot/init/runtime) */
577struct fw_desc {
578 void *v_addr; /* access by driver */
579 dma_addr_t p_addr; /* access by card's busmaster DMA */
580 u32 len; /* bytes */
581};
582
583/* uCode file layout */
bb8c093b 584struct iwl4965_ucode {
5d08cd1d
CH		 585 __le32 ver; /* major/minor/subminor */
586 __le32 inst_size; /* bytes of runtime instructions */
587 __le32 data_size; /* bytes of runtime data */
588 __le32 init_size; /* bytes of initialization instructions */
589 __le32 init_data_size; /* bytes of initialization data */
590 __le32 boot_size; /* bytes of bootstrap instructions */
591 u8 data[0]; /* data in same order as "size" elements */
592};
593
594#define IWL_IBSS_MAC_HASH_SIZE 32
595
bb8c093b 596struct iwl4965_ibss_seq {
5d08cd1d
CH		 597 u8 mac[ETH_ALEN];
598 u16 seq_num;
599 u16 frag_num;
600 unsigned long packet_time;
601 struct list_head list;
602};
603
bc47279f
BC		 604/**
605 * struct iwl4965_driver_hw_info
606 * @max_txq_num: Max # Tx queues supported
607 * @ac_queue_count: # Tx queues for EDCA Access Categories (AC)
608 * @tx_cmd_len: Size of Tx command (but not including frame itself)
609 * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
610 * @rx_buffer_size:
611 * @max_rxq_log: Log-base-2 of max_rxq_size
612 * @max_stations:
613 * @bcast_sta_id:
614 * @shared_virt: Pointer to driver/uCode shared Tx Byte Counts and Rx status
615 * @shared_phys: Physical Pointer to Tx Byte Counts and Rx status
616 */
bb8c093b 617struct iwl4965_driver_hw_info {
5d08cd1d
CH		 618 u16 max_txq_num;
619 u16 ac_queue_count;
620 u16 tx_cmd_len;
621 u16 max_rxq_size;
622 u32 rx_buffer_size;
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);
653extern u8 iwl4965_add_station_flags(struct iwl4965_priv *priv, const u8 *bssid,
5d08cd1d 654 int is_ap, u8 flags);
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		 770struct sta_ht_info;
771
772/*
773 * Forward declare iwl-4965.c functions for iwl-base.c
774 */
bb8c093b
CH		 775extern int iwl4965_eeprom_acquire_semaphore(struct iwl4965_priv *priv);
776extern void iwl4965_eeprom_release_semaphore(struct iwl4965_priv *priv);
b481de9c 777
bb8c093b
CH		 778extern int iwl4965_tx_queue_update_wr_ptr(struct iwl4965_priv *priv,
779 struct iwl4965_tx_queue *txq,
b481de9c 780 u16 byte_cnt);
bb8c093b 781extern void iwl4965_add_station(struct iwl4965_priv *priv, const u8 *addr,
b481de9c 782 int is_ap);
bb8c093b 783extern void iwl4965_set_rxon_ht(struct iwl4965_priv *priv,
b481de9c
ZY		 784 struct sta_ht_info *ht_info);
785
bb8c093b
CH		 786extern void iwl4965_set_rxon_chain(struct iwl4965_priv *priv);
787extern int iwl4965_tx_cmd(struct iwl4965_priv *priv, struct iwl4965_cmd *out_cmd,
b481de9c
ZY		 788 u8 sta_id, dma_addr_t txcmd_phys,
789 struct ieee80211_hdr *hdr, u8 hdr_len,
790 struct ieee80211_tx_control *ctrl, void *sta_in);
bb8c093b
CH		 791extern int iwl4965_alive_notify(struct iwl4965_priv *priv);
792extern void iwl4965_update_rate_scaling(struct iwl4965_priv *priv, u8 mode);
793extern void iwl4965_set_ht_add_station(struct iwl4965_priv *priv, u8 index);
794
795extern void iwl4965_chain_noise_reset(struct iwl4965_priv *priv);
796extern void iwl4965_init_sensitivity(struct iwl4965_priv *priv, u8 flags,
b481de9c 797 u8 force);
bb8c093b 798extern int iwl4965_set_fat_chan_info(struct iwl4965_priv *priv, int phymode,
b481de9c 799 u16 channel,
bb8c093b 800 const struct iwl4965_eeprom_channel *eeprom_ch,
b481de9c 801 u8 fat_extension_channel);
bb8c093b 802extern void iwl4965_rf_kill_ct_config(struct iwl4965_priv *priv);
b481de9c 803
c8b0e6e1
CH		 804#ifdef CONFIG_IWL4965_HT
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;
1049
1050 /* temporary frame storage list */
1051 struct list_head free_frames;
1052 int frames_count;
1053
1054 u8 phymode;
1055 int alloc_rxb_skb;
1056
bb8c093b
CH		 1057 void (*rx_handlers[REPLY_MAX])(struct iwl4965_priv *priv,
1058 struct iwl4965_rx_mem_buffer *rxb);
5d08cd1d
CH		 1059
1060 const struct ieee80211_hw_mode *modes;
1061
c8b0e6e1 1062#ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
5d08cd1d 1063 /* spectrum measurement report caching */
bb8c093b 1064 struct iwl4965_spectrum_notification measure_report;
5d08cd1d
CH		 1065 u8 measurement_status;
1066#endif
1067 /* ucode beacon time */
1068 u32 ucode_beacon_time;
1069
bb8c093b 1070 /* we allocate array of iwl4965_channel_info for NIC's valid channels.
5d08cd1d 1071 * Access via channel # using indirect index array */
bb8c093b 1072 struct iwl4965_channel_info *channel_info; /* channel info array */
5d08cd1d
CH		 1073 u8 channel_count; /* # of channels */
1074
1075 /* each calibration channel group in the EEPROM has a derived
1076 * clip setting for each rate. */
bb8c093b 1077 const struct iwl4965_clip_group clip_groups[5];
5d08cd1d
CH		 1078
1079 /* thermal calibration */
1080 s32 temperature; /* degrees Kelvin */
1081 s32 last_temperature;
1082
1083 /* Scan related variables */
1084 unsigned long last_scan_jiffies;
1085 unsigned long scan_start;
1086 unsigned long scan_pass_start;
1087 unsigned long scan_start_tsf;
1088 int scan_bands;
1089 int one_direct_scan;
1090 u8 direct_ssid_len;
1091 u8 direct_ssid[IW_ESSID_MAX_SIZE];
bb8c093b 1092 struct iwl4965_scan_cmd *scan;
5d08cd1d
CH		 1093 u8 only_active_channel;
1094
1095 /* spinlock */
1096 spinlock_t lock; /* protect general shared data */
1097 spinlock_t hcmd_lock; /* protect hcmd */
1098 struct mutex mutex;
1099
1100 /* basic pci-network driver stuff */
1101 struct pci_dev *pci_dev;
1102
1103 /* pci hardware address support */
1104 void __iomem *hw_base;
1105
1106 /* uCode images, save to reload in case of failure */
1107 struct fw_desc ucode_code; /* runtime inst */
1108 struct fw_desc ucode_data; /* runtime data original */
1109 struct fw_desc ucode_data_backup; /* runtime data save/restore */
1110 struct fw_desc ucode_init; /* initialization inst */
1111 struct fw_desc ucode_init_data; /* initialization data */
1112 struct fw_desc ucode_boot; /* bootstrap inst */
1113
1114
bb8c093b 1115 struct iwl4965_rxon_time_cmd rxon_timing;
5d08cd1d
CH		 1116
1117 /* We declare this const so it can only be
1118 * changed via explicit cast within the
1119 * routines that actually update the physical
1120 * hardware */
bb8c093b
CH		 1121 const struct iwl4965_rxon_cmd active_rxon;
1122 struct iwl4965_rxon_cmd staging_rxon;
5d08cd1d
CH		 1123
1124 int error_recovering;
bb8c093b 1125 struct iwl4965_rxon_cmd recovery_rxon;
5d08cd1d
CH		 1126
1127 /* 1st responses from initialize and runtime uCode images.
1128 * 4965's initialize alive response contains some calibration data. */
bb8c093b
CH		 1129 struct iwl4965_init_alive_resp card_alive_init;
1130 struct iwl4965_alive_resp card_alive;
5d08cd1d
CH		 1131
1132#ifdef LED
1133 /* LED related variables */
bb8c093b 1134 struct iwl4965_activity_blink activity;
5d08cd1d
CH		 1135 unsigned long led_packets;
1136 int led_state;
1137#endif
1138
1139 u16 active_rate;
1140 u16 active_rate_basic;
1141
1142 u8 call_post_assoc_from_beacon;
1143 u8 assoc_station_added;
1144 u8 use_ant_b_for_management_frame; /* Tx antenna selection */
bc47279f
BC		 1145
1146 /* High Throughput (HT) variables */
5d08cd1d
CH		 1147 u8 is_dup;
1148 u8 is_ht_enabled;
bc47279f 1149 u8 channel_width; /* 0=20MHZ, 1=40MHZ supported */
5d08cd1d
CH		 1150 u8 current_channel_width;
1151 u8 valid_antenna; /* Bit mask of antennas actually connected */
c8b0e6e1 1152#ifdef CONFIG_IWL4965_SENSITIVITY
bb8c093b
CH		 1153 struct iwl4965_sensitivity_data sensitivity_data;
1154 struct iwl4965_chain_noise_data chain_noise_data;
5d08cd1d
CH		 1155 u8 start_calib;
1156 __le16 sensitivity_tbl[HD_TABLE_SIZE];
c8b0e6e1 1157#endif /*CONFIG_IWL4965_SENSITIVITY*/
5d08cd1d 1158
c8b0e6e1 1159#ifdef CONFIG_IWL4965_HT
5d08cd1d
CH		 1160 struct sta_ht_info current_assoc_ht;
1161#endif
1162 u8 active_rate_ht[2];
1163 u8 last_phy_res[100];
1164
1165 /* Rate scaling data */
bb8c093b 1166 struct iwl4965_lq_mngr lq_mngr;
5d08cd1d
CH		 1167
1168 /* Rate scaling data */
1169 s8 data_retry_limit;
1170 u8 retry_rate;
1171
1172 wait_queue_head_t wait_command_queue;
1173
1174 int activity_timer_active;
1175
1176 /* Rx and Tx DMA processing queues */
bb8c093b
CH		 1177 struct iwl4965_rx_queue rxq;
1178 struct iwl4965_tx_queue txq[IWL_MAX_NUM_QUEUES];
5d08cd1d 1179 unsigned long txq_ctx_active_msk;
bb8c093b 1180 struct iwl4965_kw kw; /* keep warm address */
5d08cd1d
CH		 1181 u32 scd_base_addr; /* scheduler sram base address */
1182
1183 unsigned long status;
1184 u32 config;
1185
1186 int last_rx_rssi; /* From Rx packet statisitics */
1187 int last_rx_noise; /* From beacon statistics */
1188
bb8c093b 1189 struct iwl4965_power_mgr power_data;
5d08cd1d 1190
bb8c093b 1191 struct iwl4965_notif_statistics statistics;
5d08cd1d
CH		 1192 unsigned long last_statistics_time;
1193
1194 /* context information */
1195 u8 essid[IW_ESSID_MAX_SIZE];
1196 u8 essid_len;
1197 u16 rates_mask;
1198
1199 u32 power_mode;
1200 u32 antenna;
1201 u8 bssid[ETH_ALEN];
1202 u16 rts_threshold;
1203 u8 mac_addr[ETH_ALEN];
1204
1205 /*station table variables */
1206 spinlock_t sta_lock;
1207 int num_stations;
bb8c093b 1208 struct iwl4965_station_entry stations[IWL_STATION_COUNT];
5d08cd1d
CH		 1209
1210 /* Indication if ieee80211_ops->open has been called */
1211 int is_open;
1212
1213 u8 mac80211_registered;
1214 int is_abg;
1215
1216 u32 notif_missed_beacons;
1217
1218 /* Rx'd packet timing information */
1219 u32 last_beacon_time;
1220 u64 last_tsf;
1221
1222 /* Duplicate packet detection */
1223 u16 last_seq_num;
1224 u16 last_frag_num;
1225 unsigned long last_packet_time;
bc47279f
BC		 1226
1227 /* Hash table for finding stations in IBSS network */
5d08cd1d
CH		 1228 struct list_head ibss_mac_hash[IWL_IBSS_MAC_HASH_SIZE];
1229
1230 /* eeprom */
bb8c093b 1231 struct iwl4965_eeprom eeprom;
5d08cd1d
CH		 1232
1233 int iw_mode;
1234
1235 struct sk_buff *ibss_beacon;
1236
1237 /* Last Rx'd beacon timestamp */
1238 u32 timestamp0;
1239 u32 timestamp1;
1240 u16 beacon_int;
bb8c093b 1241 struct iwl4965_driver_hw_info hw_setting;
5d08cd1d
CH		 1242 int interface_id;
1243
1244 /* Current association information needed to configure the
1245 * hardware */
1246 u16 assoc_id;
1247 u16 assoc_capability;
1248 u8 ps_mode;
1249
c8b0e6e1 1250#ifdef CONFIG_IWL4965_QOS
bb8c093b 1251 struct iwl4965_qos_info qos_data;
c8b0e6e1 1252#endif /*CONFIG_IWL4965_QOS */
5d08cd1d
CH		 1253
1254 struct workqueue_struct *workqueue;
1255
1256 struct work_struct up;
1257 struct work_struct restart;
1258 struct work_struct calibrated_work;
1259 struct work_struct scan_completed;
1260 struct work_struct rx_replenish;
1261 struct work_struct rf_kill;
1262 struct work_struct abort_scan;
1263 struct work_struct update_link_led;
1264 struct work_struct auth_work;
1265 struct work_struct report_work;
1266 struct work_struct request_scan;
1267 struct work_struct beacon_update;
1268
1269 struct tasklet_struct irq_tasklet;
1270
1271 struct delayed_work init_alive_start;
1272 struct delayed_work alive_start;
1273 struct delayed_work activity_timer;
1274 struct delayed_work thermal_periodic;
1275 struct delayed_work gather_stats;
1276 struct delayed_work scan_check;
1277 struct delayed_work post_associate;
1278
1279#define IWL_DEFAULT_TX_POWER 0x0F
1280 s8 user_txpower_limit;
1281 s8 max_channel_txpower_limit;
1282
1283#ifdef CONFIG_PM
1284 u32 pm_state[16];
1285#endif
1286
c8b0e6e1 1287#ifdef CONFIG_IWL4965_DEBUG
5d08cd1d
CH		 1288 /* debugging info */
1289 u32 framecnt_to_us;
1290 atomic_t restrict_refcnt;
1291#endif
1292
1293 struct work_struct txpower_work;
c8b0e6e1 1294#ifdef CONFIG_IWL4965_SENSITIVITY
5d08cd1d
CH		 1295 struct work_struct sensitivity_work;
1296#endif
1297 struct work_struct statistics_work;
1298 struct timer_list statistics_periodic;
1299
c8b0e6e1 1300#ifdef CONFIG_IWL4965_HT_AGG
5d08cd1d
CH		 1301 struct work_struct agg_work;
1302#endif
bb8c093b 1303}; /*iwl4965_priv */
5d08cd1d 1304
bb8c093b 1305static inline int iwl4965_is_associated(struct iwl4965_priv *priv)
5d08cd1d
CH		 1306{
1307 return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
1308}
1309
bb8c093b 1310static inline int is_channel_valid(const struct iwl4965_channel_info *ch_info)
5d08cd1d
CH		 1311{
1312 if (ch_info == NULL)
1313 return 0;
1314 return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
1315}
1316
bb8c093b 1317static inline int is_channel_narrow(const struct iwl4965_channel_info *ch_info)
5d08cd1d
CH		 1318{
1319 return (ch_info->flags & EEPROM_CHANNEL_NARROW) ? 1 : 0;
1320}
1321
bb8c093b 1322static inline int is_channel_radar(const struct iwl4965_channel_info *ch_info)
5d08cd1d
CH		 1323{
1324 return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
1325}
1326
bb8c093b 1327static inline u8 is_channel_a_band(const struct iwl4965_channel_info *ch_info)
5d08cd1d
CH		 1328{
1329 return ch_info->phymode == MODE_IEEE80211A;
1330}
1331
bb8c093b 1332static inline u8 is_channel_bg_band(const struct iwl4965_channel_info *ch_info)
5d08cd1d
CH		 1333{
1334 return ((ch_info->phymode == MODE_IEEE80211B) ||
1335 (ch_info->phymode == MODE_IEEE80211G));
1336}
1337
bb8c093b 1338static inline int is_channel_passive(const struct iwl4965_channel_info *ch)
5d08cd1d
CH		 1339{
1340 return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
1341}
1342
bb8c093b 1343static inline int is_channel_ibss(const struct iwl4965_channel_info *ch)
5d08cd1d
CH		 1344{
1345 return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
1346}
1347
bb8c093b
CH		 1348extern const struct iwl4965_channel_info *iwl4965_get_channel_info(
1349 const struct iwl4965_priv *priv, int phymode, u16 channel);
5d08cd1d 1350
bb8c093b 1351/* Requires full declaration of iwl4965_priv before including */
5d08cd1d
CH		 1352#include "iwl-4965-io.h"
1353
bb8c093b 1354#endif /* __iwl4965_4965_h__ */
Linux kernel - Deliverables
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