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mac80211: change MIMO_PS to SM_PS
[deliverable/linux.git] / drivers / net / wireless / iwlwifi / iwl-dev.h
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1/******************************************************************************
2 *
3 * Copyright(c) 2003 - 2008 Intel Corporation. All rights reserved.
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of version 2 of the GNU General Public License as
7 * published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
12 * more details.
13 *
14 * You should have received a copy of the GNU General Public License along with
15 * this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
17 *
18 * The full GNU General Public License is included in this distribution in the
19 * file called LICENSE.
20 *
21 * Contact Information:
22 * James P. Ketrenos <ipw2100-admin@linux.intel.com>
23 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
24 *
25 *****************************************************************************/
26/*
27 * Please use this file (iwl-dev.h) for driver implementation definitions.
28 * Please use iwl-commands.h for uCode API definitions.
29 * Please use iwl-4965-hw.h for hardware-related definitions.
30 */
31
32#ifndef __iwl_dev_h__
33#define __iwl_dev_h__
34
35#include <linux/pci.h> /* for struct pci_device_id */
36#include <linux/kernel.h>
37#include <net/ieee80211_radiotap.h>
38
39#define DRV_NAME "iwlagn"
40#include "iwl-rfkill.h"
41#include "iwl-eeprom.h"
42#include "iwl-4965-hw.h"
43#include "iwl-csr.h"
44#include "iwl-prph.h"
45#include "iwl-debug.h"
46#include "iwl-led.h"
47#include "iwl-power.h"
48#include "iwl-agn-rs.h"
49
50/* configuration for the iwl4965 */
51extern struct iwl_cfg iwl4965_agn_cfg;
52extern struct iwl_cfg iwl5300_agn_cfg;
53extern struct iwl_cfg iwl5100_agn_cfg;
54extern struct iwl_cfg iwl5350_agn_cfg;
55extern struct iwl_cfg iwl5100_bg_cfg;
56extern struct iwl_cfg iwl5100_abg_cfg;
57
58/* CT-KILL constants */
59#define CT_KILL_THRESHOLD 110 /* in Celsius */
60
61/* Default noise level to report when noise measurement is not available.
62 * This may be because we're:
63 * 1) Not associated (4965, no beacon statistics being sent to driver)
64 * 2) Scanning (noise measurement does not apply to associated channel)
65 * 3) Receiving CCK (3945 delivers noise info only for OFDM frames)
66 * Use default noise value of -127 ... this is below the range of measurable
67 * Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
68 * Also, -127 works better than 0 when averaging frames with/without
69 * noise info (e.g. averaging might be done in app); measured dBm values are
70 * always negative ... using a negative value as the default keeps all
71 * averages within an s8's (used in some apps) range of negative values. */
72#define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
73
74/*
75 * RTS threshold here is total size [2347] minus 4 FCS bytes
76 * Per spec:
77 * a value of 0 means RTS on all data/management packets
78 * a value > max MSDU size means no RTS
79 * else RTS for data/management frames where MPDU is larger
80 * than RTS value.
81 */
82#define DEFAULT_RTS_THRESHOLD 2347U
83#define MIN_RTS_THRESHOLD 0U
84#define MAX_RTS_THRESHOLD 2347U
85#define MAX_MSDU_SIZE 2304U
86#define MAX_MPDU_SIZE 2346U
87#define DEFAULT_BEACON_INTERVAL 100U
88#define DEFAULT_SHORT_RETRY_LIMIT 7U
89#define DEFAULT_LONG_RETRY_LIMIT 4U
90
91struct iwl_rx_mem_buffer {
92 dma_addr_t dma_addr;
93 struct sk_buff *skb;
94 struct list_head list;
95};
96
97/*
98 * Generic queue structure
99 *
100 * Contains common data for Rx and Tx queues
101 */
102struct iwl_queue {
103 int n_bd; /* number of BDs in this queue */
104 int write_ptr; /* 1-st empty entry (index) host_w*/
105 int read_ptr; /* last used entry (index) host_r*/
106 dma_addr_t dma_addr; /* physical addr for BD's */
107 int n_window; /* safe queue window */
108 u32 id;
109 int low_mark; /* low watermark, resume queue if free
110 * space more than this */
111 int high_mark; /* high watermark, stop queue if free
112 * space less than this */
113} __attribute__ ((packed));
114
115#define MAX_NUM_OF_TBS (20)
116
117/* One for each TFD */
118struct iwl_tx_info {
119 struct sk_buff *skb[MAX_NUM_OF_TBS];
120};
121
122/**
123 * struct iwl_tx_queue - Tx Queue for DMA
124 * @q: generic Rx/Tx queue descriptor
125 * @bd: base of circular buffer of TFDs
126 * @cmd: array of command/Tx buffers
127 * @dma_addr_cmd: physical address of cmd/tx buffer array
128 * @txb: array of per-TFD driver data
129 * @need_update: indicates need to update read/write index
130 * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
131 *
132 * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
133 * descriptors) and required locking structures.
134 */
135struct iwl_tx_queue {
136 struct iwl_queue q;
137 struct iwl_tfd_frame *bd;
138 struct iwl_cmd *cmd[TFD_TX_CMD_SLOTS];
139 struct iwl_tx_info *txb;
140 int need_update;
141 int sched_retry;
142 int active;
143};
144
145#define IWL_NUM_SCAN_RATES (2)
146
147struct iwl4965_channel_tgd_info {
148 u8 type;
149 s8 max_power;
150};
151
152struct iwl4965_channel_tgh_info {
153 s64 last_radar_time;
154};
155
156/*
157 * One for each channel, holds all channel setup data
158 * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
159 * with one another!
160 */
161struct iwl_channel_info {
162 struct iwl4965_channel_tgd_info tgd;
163 struct iwl4965_channel_tgh_info tgh;
164 struct iwl_eeprom_channel eeprom; /* EEPROM regulatory limit */
165 struct iwl_eeprom_channel fat_eeprom; /* EEPROM regulatory limit for
166 * FAT channel */
167
168 u8 channel; /* channel number */
169 u8 flags; /* flags copied from EEPROM */
170 s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
171 s8 curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) limit */
172 s8 min_power; /* always 0 */
173 s8 scan_power; /* (dBm) regul. eeprom, direct scans, any rate */
174
175 u8 group_index; /* 0-4, maps channel to group1/2/3/4/5 */
176 u8 band_index; /* 0-4, maps channel to band1/2/3/4/5 */
177 enum ieee80211_band band;
178
179 /* FAT channel info */
180 s8 fat_max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
181 s8 fat_curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) */
182 s8 fat_min_power; /* always 0 */
183 s8 fat_scan_power; /* (dBm) eeprom, direct scans, any rate */
184 u8 fat_flags; /* flags copied from EEPROM */
185 u8 fat_extension_channel; /* HT_IE_EXT_CHANNEL_* */
186};
187
188struct iwl4965_clip_group {
189 /* maximum power level to prevent clipping for each rate, derived by
190 * us from this band's saturation power in EEPROM */
191 const s8 clip_powers[IWL_MAX_RATES];
192};
193
194
195#define IWL_TX_FIFO_AC0 0
196#define IWL_TX_FIFO_AC1 1
197#define IWL_TX_FIFO_AC2 2
198#define IWL_TX_FIFO_AC3 3
199#define IWL_TX_FIFO_HCCA_1 5
200#define IWL_TX_FIFO_HCCA_2 6
201#define IWL_TX_FIFO_NONE 7
202
203/* Minimum number of queues. MAX_NUM is defined in hw specific files */
204#define IWL_MIN_NUM_QUEUES 4
205
206/* Power management (not Tx power) structures */
207
208enum iwl_pwr_src {
209 IWL_PWR_SRC_VMAIN,
210 IWL_PWR_SRC_VAUX,
211};
212
213#define IEEE80211_DATA_LEN 2304
214#define IEEE80211_4ADDR_LEN 30
215#define IEEE80211_HLEN (IEEE80211_4ADDR_LEN)
216#define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
217
218struct iwl_frame {
219 union {
220 struct ieee80211_hdr frame;
221 struct iwl_tx_beacon_cmd beacon;
222 u8 raw[IEEE80211_FRAME_LEN];
223 u8 cmd[360];
224 } u;
225 struct list_head list;
226};
227
228#define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
229#define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
230#define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
231
232enum {
233 /* CMD_SIZE_NORMAL = 0, */
234 CMD_SIZE_HUGE = (1 << 0),
235 /* CMD_SYNC = 0, */
236 CMD_ASYNC = (1 << 1),
237 /* CMD_NO_SKB = 0, */
238 CMD_WANT_SKB = (1 << 2),
239};
240
241struct iwl_cmd;
242struct iwl_priv;
243
244struct iwl_cmd_meta {
245 struct iwl_cmd_meta *source;
246 union {
247 struct sk_buff *skb;
248 int (*callback)(struct iwl_priv *priv,
249 struct iwl_cmd *cmd, struct sk_buff *skb);
250 } __attribute__ ((packed)) u;
251
252 /* The CMD_SIZE_HUGE flag bit indicates that the command
253 * structure is stored at the end of the shared queue memory. */
254 u32 flags;
255
256} __attribute__ ((packed));
257
258#define IWL_CMD_MAX_PAYLOAD 320
259
260/**
261 * struct iwl_cmd
262 *
263 * For allocation of the command and tx queues, this establishes the overall
264 * size of the largest command we send to uCode, except for a scan command
265 * (which is relatively huge; space is allocated separately).
266 */
267struct iwl_cmd {
268 struct iwl_cmd_meta meta; /* driver data */
269 struct iwl_cmd_header hdr; /* uCode API */
270 union {
271 struct iwl_addsta_cmd addsta;
272 struct iwl_led_cmd led;
273 u32 flags;
274 u8 val8;
275 u16 val16;
276 u32 val32;
277 struct iwl4965_bt_cmd bt;
278 struct iwl4965_rxon_time_cmd rxon_time;
279 struct iwl_powertable_cmd powertable;
280 struct iwl_qosparam_cmd qosparam;
281 struct iwl_tx_cmd tx;
282 struct iwl4965_rxon_assoc_cmd rxon_assoc;
283 struct iwl_rem_sta_cmd rm_sta;
284 u8 *indirect;
285 u8 payload[IWL_CMD_MAX_PAYLOAD];
286 } __attribute__ ((packed)) cmd;
287} __attribute__ ((packed));
288
289struct iwl_host_cmd {
290 u8 id;
291 u16 len;
292 struct iwl_cmd_meta meta;
293 const void *data;
294};
295
296#define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_cmd) - \
297 sizeof(struct iwl_cmd_meta))
298
299/*
300 * RX related structures and functions
301 */
302#define RX_FREE_BUFFERS 64
303#define RX_LOW_WATERMARK 8
304
305#define SUP_RATE_11A_MAX_NUM_CHANNELS 8
306#define SUP_RATE_11B_MAX_NUM_CHANNELS 4
307#define SUP_RATE_11G_MAX_NUM_CHANNELS 12
308
309/**
310 * struct iwl_rx_queue - Rx queue
311 * @processed: Internal index to last handled Rx packet
312 * @read: Shared index to newest available Rx buffer
313 * @write: Shared index to oldest written Rx packet
314 * @free_count: Number of pre-allocated buffers in rx_free
315 * @rx_free: list of free SKBs for use
316 * @rx_used: List of Rx buffers with no SKB
317 * @need_update: flag to indicate we need to update read/write index
318 *
319 * NOTE: rx_free and rx_used are used as a FIFO for iwl_rx_mem_buffers
320 */
321struct iwl_rx_queue {
322 __le32 *bd;
323 dma_addr_t dma_addr;
324 struct iwl_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
325 struct iwl_rx_mem_buffer *queue[RX_QUEUE_SIZE];
326 u32 processed;
327 u32 read;
328 u32 write;
329 u32 free_count;
330 struct list_head rx_free;
331 struct list_head rx_used;
332 int need_update;
333 spinlock_t lock;
334};
335
336#define IWL_SUPPORTED_RATES_IE_LEN 8
337
338#define SCAN_INTERVAL 100
339
340#define MAX_A_CHANNELS 252
341#define MIN_A_CHANNELS 7
342
343#define MAX_B_CHANNELS 14
344#define MIN_B_CHANNELS 1
345
346#define MAX_TID_COUNT 9
347
348#define IWL_INVALID_RATE 0xFF
349#define IWL_INVALID_VALUE -1
350
351/**
352 * struct iwl_ht_agg -- aggregation status while waiting for block-ack
353 * @txq_id: Tx queue used for Tx attempt
354 * @frame_count: # frames attempted by Tx command
355 * @wait_for_ba: Expect block-ack before next Tx reply
356 * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window
357 * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window
358 * @bitmap1: High order, one bit for each frame pending ACK in Tx window
359 * @rate_n_flags: Rate at which Tx was attempted
360 *
361 * If REPLY_TX indicates that aggregation was attempted, driver must wait
362 * for block ack (REPLY_COMPRESSED_BA). This struct stores tx reply info
363 * until block ack arrives.
364 */
365struct iwl_ht_agg {
366 u16 txq_id;
367 u16 frame_count;
368 u16 wait_for_ba;
369 u16 start_idx;
370 u64 bitmap;
371 u32 rate_n_flags;
372#define IWL_AGG_OFF 0
373#define IWL_AGG_ON 1
374#define IWL_EMPTYING_HW_QUEUE_ADDBA 2
375#define IWL_EMPTYING_HW_QUEUE_DELBA 3
376 u8 state;
377};
378
379
380struct iwl_tid_data {
381 u16 seq_number;
382 u16 tfds_in_queue;
383 struct iwl_ht_agg agg;
384};
385
386struct iwl_hw_key {
387 enum ieee80211_key_alg alg;
388 int keylen;
389 u8 keyidx;
390 u8 key[32];
391};
392
393union iwl4965_ht_rate_supp {
394 u16 rates;
395 struct {
396 u8 siso_rate;
397 u8 mimo_rate;
398 };
399};
400
401#define CFG_HT_RX_AMPDU_FACTOR_DEF (0x3)
402#define CFG_HT_MPDU_DENSITY_2USEC (0x5)
403#define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_2USEC
404
405struct iwl_ht_info {
406 /* self configuration data */
407 u8 is_ht;
408 u8 supported_chan_width;
409 u8 is_green_field;
410 u8 sgf; /* HT_SHORT_GI_* short guard interval */
411 u8 max_amsdu_size;
412 u8 ampdu_factor;
413 u8 mpdu_density;
414 u8 supp_mcs_set[16];
415 /* BSS related data */
416 u8 control_channel;
417 u8 extension_chan_offset;
418 u8 tx_chan_width;
419 u8 ht_protection;
420 u8 non_GF_STA_present;
421};
422
423union iwl_qos_capabity {
424 struct {
425 u8 edca_count:4; /* bit 0-3 */
426 u8 q_ack:1; /* bit 4 */
427 u8 queue_request:1; /* bit 5 */
428 u8 txop_request:1; /* bit 6 */
429 u8 reserved:1; /* bit 7 */
430 } q_AP;
431 struct {
432 u8 acvo_APSD:1; /* bit 0 */
433 u8 acvi_APSD:1; /* bit 1 */
434 u8 ac_bk_APSD:1; /* bit 2 */
435 u8 ac_be_APSD:1; /* bit 3 */
436 u8 q_ack:1; /* bit 4 */
437 u8 max_len:2; /* bit 5-6 */
438 u8 more_data_ack:1; /* bit 7 */
439 } q_STA;
440 u8 val;
441};
442
443/* QoS structures */
444struct iwl_qos_info {
445 int qos_enable;
446 int qos_active;
447 union iwl_qos_capabity qos_cap;
448 struct iwl_qosparam_cmd def_qos_parm;
449};
450
451#define STA_PS_STATUS_WAKE 0
452#define STA_PS_STATUS_SLEEP 1
453
454struct iwl_station_entry {
455 struct iwl_addsta_cmd sta;
456 struct iwl_tid_data tid[MAX_TID_COUNT];
457 u8 used;
458 u8 ps_status;
459 struct iwl_hw_key keyinfo;
460};
461
462/* one for each uCode image (inst/data, boot/init/runtime) */
463struct fw_desc {
464 void *v_addr; /* access by driver */
465 dma_addr_t p_addr; /* access by card's busmaster DMA */
466 u32 len; /* bytes */
467};
468
469/* uCode file layout */
470struct iwl_ucode {
471 __le32 ver; /* major/minor/subminor */
472 __le32 inst_size; /* bytes of runtime instructions */
473 __le32 data_size; /* bytes of runtime data */
474 __le32 init_size; /* bytes of initialization instructions */
475 __le32 init_data_size; /* bytes of initialization data */
476 __le32 boot_size; /* bytes of bootstrap instructions */
477 u8 data[0]; /* data in same order as "size" elements */
478};
479
480struct iwl4965_ibss_seq {
481 u8 mac[ETH_ALEN];
482 u16 seq_num;
483 u16 frag_num;
484 unsigned long packet_time;
485 struct list_head list;
486};
487
488struct iwl_sensitivity_ranges {
489 u16 min_nrg_cck;
490 u16 max_nrg_cck;
491
492 u16 nrg_th_cck;
493 u16 nrg_th_ofdm;
494
495 u16 auto_corr_min_ofdm;
496 u16 auto_corr_min_ofdm_mrc;
497 u16 auto_corr_min_ofdm_x1;
498 u16 auto_corr_min_ofdm_mrc_x1;
499
500 u16 auto_corr_max_ofdm;
501 u16 auto_corr_max_ofdm_mrc;
502 u16 auto_corr_max_ofdm_x1;
503 u16 auto_corr_max_ofdm_mrc_x1;
504
505 u16 auto_corr_max_cck;
506 u16 auto_corr_max_cck_mrc;
507 u16 auto_corr_min_cck;
508 u16 auto_corr_min_cck_mrc;
509};
510
511
512#define IWL_FAT_CHANNEL_52 BIT(IEEE80211_BAND_5GHZ)
513
514/**
515 * struct iwl_hw_params
516 * @max_txq_num: Max # Tx queues supported
517 * @tx/rx_chains_num: Number of TX/RX chains
518 * @valid_tx/rx_ant: usable antennas
519 * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
520 * @max_rxq_log: Log-base-2 of max_rxq_size
521 * @rx_buf_size: Rx buffer size
522 * @max_stations:
523 * @bcast_sta_id:
524 * @fat_channel: is 40MHz width possible in band 2.4
525 * BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ)
526 * @sw_crypto: 0 for hw, 1 for sw
527 * @max_xxx_size: for ucode uses
528 * @ct_kill_threshold: temperature threshold
529 * @struct iwl_sensitivity_ranges: range of sensitivity values
530 * @first_ampdu_q: first HW queue available for ampdu
531 */
532struct iwl_hw_params {
533 u16 max_txq_num;
534 u8 tx_chains_num;
535 u8 rx_chains_num;
536 u8 valid_tx_ant;
537 u8 valid_rx_ant;
538 u16 max_rxq_size;
539 u16 max_rxq_log;
540 u32 rx_buf_size;
541 u32 max_pkt_size;
542 u8 max_stations;
543 u8 bcast_sta_id;
544 u8 fat_channel;
545 u8 sw_crypto;
546 u32 max_inst_size;
547 u32 max_data_size;
548 u32 max_bsm_size;
549 u32 ct_kill_threshold; /* value in hw-dependent units */
550 const struct iwl_sensitivity_ranges *sens;
551 u8 first_ampdu_q;
552};
553
554#define HT_SHORT_GI_20MHZ (1 << 0)
555#define HT_SHORT_GI_40MHZ (1 << 1)
556
557
558#define IWL_RX_HDR(x) ((struct iwl4965_rx_frame_hdr *)(\
559 x->u.rx_frame.stats.payload + \
560 x->u.rx_frame.stats.phy_count))
561#define IWL_RX_END(x) ((struct iwl4965_rx_frame_end *)(\
562 IWL_RX_HDR(x)->payload + \
563 le16_to_cpu(IWL_RX_HDR(x)->len)))
564#define IWL_RX_STATS(x) (&x->u.rx_frame.stats)
565#define IWL_RX_DATA(x) (IWL_RX_HDR(x)->payload)
566
567
568/******************************************************************************
569 *
570 * Functions implemented in iwl-base.c which are forward declared here
571 * for use by iwl-*.c
572 *
573 *****************************************************************************/
574struct iwl_addsta_cmd;
575extern int iwl_send_add_sta(struct iwl_priv *priv,
576 struct iwl_addsta_cmd *sta, u8 flags);
577u8 iwl_add_station_flags(struct iwl_priv *priv, const u8 *addr, int is_ap,
578 u8 flags, struct ieee80211_ht_info *ht_info);
579extern unsigned int iwl4965_fill_beacon_frame(struct iwl_priv *priv,
580 struct ieee80211_hdr *hdr,
581 const u8 *dest, int left);
582extern void iwl4965_update_chain_flags(struct iwl_priv *priv);
583int iwl4965_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src);
584extern int iwl4965_set_power(struct iwl_priv *priv, void *cmd);
585
586extern const u8 iwl_bcast_addr[ETH_ALEN];
587
588/******************************************************************************
589 *
590 * Functions implemented in iwl-[34]*.c which are forward declared here
591 * for use by iwl-base.c
592 *
593 * NOTE: The implementation of these functions are hardware specific
594 * which is why they are in the hardware specific files (vs. iwl-base.c)
595 *
596 * Naming convention --
597 * iwl4965_ <-- Its part of iwlwifi (should be changed to iwl4965_)
598 * iwl4965_hw_ <-- Hardware specific (implemented in iwl-XXXX.c by all HW)
599 * iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
600 * iwl4965_bg_ <-- Called from work queue context
601 * iwl4965_mac_ <-- mac80211 callback
602 *
603 ****************************************************************************/
604extern int iwl_rxq_stop(struct iwl_priv *priv);
605extern void iwl_txq_ctx_stop(struct iwl_priv *priv);
606extern unsigned int iwl4965_hw_get_beacon_cmd(struct iwl_priv *priv,
607 struct iwl_frame *frame, u8 rate);
608extern void iwl4965_disable_events(struct iwl_priv *priv);
609
610extern int iwl4965_hw_channel_switch(struct iwl_priv *priv, u16 channel);
611extern int iwl_queue_space(const struct iwl_queue *q);
612static inline int iwl_queue_used(const struct iwl_queue *q, int i)
613{
614 return q->write_ptr > q->read_ptr ?
615 (i >= q->read_ptr && i < q->write_ptr) :
616 !(i < q->read_ptr && i >= q->write_ptr);
617}
618
619
620static inline u8 get_cmd_index(struct iwl_queue *q, u32 index, int is_huge)
621{
622 /* This is for scan command, the big buffer at end of command array */
623 if (is_huge)
624 return q->n_window; /* must be power of 2 */
625
626 /* Otherwise, use normal size buffers */
627 return index & (q->n_window - 1);
628}
629
630
631struct iwl_priv;
632
633
634/* Structures, enum, and defines specific to the 4965 */
635
636#define IWL_KW_SIZE 0x1000 /*4k */
637
638struct iwl_kw {
639 dma_addr_t dma_addr;
640 void *v_addr;
641 size_t size;
642};
643
644#define IWL_CHANNEL_WIDTH_20MHZ 0
645#define IWL_CHANNEL_WIDTH_40MHZ 1
646
647#define IWL_OPERATION_MODE_AUTO 0
648#define IWL_OPERATION_MODE_HT_ONLY 1
649#define IWL_OPERATION_MODE_MIXED 2
650#define IWL_OPERATION_MODE_20MHZ 3
651
652#define IWL_TX_CRC_SIZE 4
653#define IWL_TX_DELIMITER_SIZE 4
654
655#define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
656
657/* Sensitivity and chain noise calibration */
658#define INTERFERENCE_DATA_AVAILABLE __constant_cpu_to_le32(1)
659#define INITIALIZATION_VALUE 0xFFFF
660#define CAL_NUM_OF_BEACONS 20
661#define MAXIMUM_ALLOWED_PATHLOSS 15
662
663#define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
664
665#define MAX_FA_OFDM 50
666#define MIN_FA_OFDM 5
667#define MAX_FA_CCK 50
668#define MIN_FA_CCK 5
669
670#define AUTO_CORR_STEP_OFDM 1
671
672#define AUTO_CORR_STEP_CCK 3
673#define AUTO_CORR_MAX_TH_CCK 160
674
675#define NRG_DIFF 2
676#define NRG_STEP_CCK 2
677#define NRG_MARGIN 8
678#define MAX_NUMBER_CCK_NO_FA 100
679
680#define AUTO_CORR_CCK_MIN_VAL_DEF (125)
681
682#define CHAIN_A 0
683#define CHAIN_B 1
684#define CHAIN_C 2
685#define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
686#define ALL_BAND_FILTER 0xFF00
687#define IN_BAND_FILTER 0xFF
688#define MIN_AVERAGE_NOISE_MAX_VALUE 0xFFFFFFFF
689
690#define NRG_NUM_PREV_STAT_L 20
691#define NUM_RX_CHAINS 3
692
693enum iwl4965_false_alarm_state {
694 IWL_FA_TOO_MANY = 0,
695 IWL_FA_TOO_FEW = 1,
696 IWL_FA_GOOD_RANGE = 2,
697};
698
699enum iwl4965_chain_noise_state {
700 IWL_CHAIN_NOISE_ALIVE = 0, /* must be 0 */
701 IWL_CHAIN_NOISE_ACCUMULATE = 1,
702 IWL_CHAIN_NOISE_CALIBRATED = 2,
703};
704
705enum iwl4965_calib_enabled_state {
706 IWL_CALIB_DISABLED = 0, /* must be 0 */
707 IWL_CALIB_ENABLED = 1,
708};
709
710struct statistics_general_data {
711 u32 beacon_silence_rssi_a;
712 u32 beacon_silence_rssi_b;
713 u32 beacon_silence_rssi_c;
714 u32 beacon_energy_a;
715 u32 beacon_energy_b;
716 u32 beacon_energy_c;
717};
718
719/* Opaque calibration results */
720struct iwl_calib_result {
721 void *buf;
722 size_t buf_len;
723};
724
725enum ucode_type {
726 UCODE_NONE = 0,
727 UCODE_INIT,
728 UCODE_RT
729};
730
731/* Sensitivity calib data */
732struct iwl_sensitivity_data {
733 u32 auto_corr_ofdm;
734 u32 auto_corr_ofdm_mrc;
735 u32 auto_corr_ofdm_x1;
736 u32 auto_corr_ofdm_mrc_x1;
737 u32 auto_corr_cck;
738 u32 auto_corr_cck_mrc;
739
740 u32 last_bad_plcp_cnt_ofdm;
741 u32 last_fa_cnt_ofdm;
742 u32 last_bad_plcp_cnt_cck;
743 u32 last_fa_cnt_cck;
744
745 u32 nrg_curr_state;
746 u32 nrg_prev_state;
747 u32 nrg_value[10];
748 u8 nrg_silence_rssi[NRG_NUM_PREV_STAT_L];
749 u32 nrg_silence_ref;
750 u32 nrg_energy_idx;
751 u32 nrg_silence_idx;
752 u32 nrg_th_cck;
753 s32 nrg_auto_corr_silence_diff;
754 u32 num_in_cck_no_fa;
755 u32 nrg_th_ofdm;
756};
757
758/* Chain noise (differential Rx gain) calib data */
759struct iwl_chain_noise_data {
760 u8 state;
761 u16 beacon_count;
762 u32 chain_noise_a;
763 u32 chain_noise_b;
764 u32 chain_noise_c;
765 u32 chain_signal_a;
766 u32 chain_signal_b;
767 u32 chain_signal_c;
768 u8 disconn_array[NUM_RX_CHAINS];
769 u8 delta_gain_code[NUM_RX_CHAINS];
770 u8 radio_write;
771};
772
773#define EEPROM_SEM_TIMEOUT 10 /* milliseconds */
774#define EEPROM_SEM_RETRY_LIMIT 1000 /* number of attempts (not time) */
775
776
777enum {
778 MEASUREMENT_READY = (1 << 0),
779 MEASUREMENT_ACTIVE = (1 << 1),
780};
781
782
783#define IWL_MAX_NUM_QUEUES 20 /* FIXME: do dynamic allocation */
784#define IWL_CALIB_MAX 3
785
786struct iwl_priv {
787
788 /* ieee device used by generic ieee processing code */
789 struct ieee80211_hw *hw;
790 struct ieee80211_channel *ieee_channels;
791 struct ieee80211_rate *ieee_rates;
792 struct iwl_cfg *cfg;
793
794 /* temporary frame storage list */
795 struct list_head free_frames;
796 int frames_count;
797
798 enum ieee80211_band band;
799 int alloc_rxb_skb;
800
801 void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv,
802 struct iwl_rx_mem_buffer *rxb);
803
804 struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
805
806#ifdef CONFIG_IWLAGN_SPECTRUM_MEASUREMENT
807 /* spectrum measurement report caching */
808 struct iwl4965_spectrum_notification measure_report;
809 u8 measurement_status;
810#endif
811 /* ucode beacon time */
812 u32 ucode_beacon_time;
813
814 /* we allocate array of iwl4965_channel_info for NIC's valid channels.
815 * Access via channel # using indirect index array */
816 struct iwl_channel_info *channel_info; /* channel info array */
817 u8 channel_count; /* # of channels */
818
819 /* each calibration channel group in the EEPROM has a derived
820 * clip setting for each rate. */
821 const struct iwl4965_clip_group clip_groups[5];
822
823 /* thermal calibration */
824 s32 temperature; /* degrees Kelvin */
825 s32 last_temperature;
826
827 /* init calibration results */
828 struct iwl_calib_result calib_results[IWL_CALIB_MAX];
829
830 /* Scan related variables */
831 unsigned long last_scan_jiffies;
832 unsigned long next_scan_jiffies;
833 unsigned long scan_start;
834 unsigned long scan_pass_start;
835 unsigned long scan_start_tsf;
836 int scan_bands;
837 int one_direct_scan;
838 u8 direct_ssid_len;
839 u8 direct_ssid[IW_ESSID_MAX_SIZE];
840 struct iwl_scan_cmd *scan;
841 u32 scan_tx_ant[IEEE80211_NUM_BANDS];
842
843 /* spinlock */
844 spinlock_t lock; /* protect general shared data */
845 spinlock_t hcmd_lock; /* protect hcmd */
846 struct mutex mutex;
847
848 /* basic pci-network driver stuff */
849 struct pci_dev *pci_dev;
850
851 /* pci hardware address support */
852 void __iomem *hw_base;
853 u32 hw_rev;
854 u32 hw_wa_rev;
855 u8 rev_id;
856
857 /* uCode images, save to reload in case of failure */
858 struct fw_desc ucode_code; /* runtime inst */
859 struct fw_desc ucode_data; /* runtime data original */
860 struct fw_desc ucode_data_backup; /* runtime data save/restore */
861 struct fw_desc ucode_init; /* initialization inst */
862 struct fw_desc ucode_init_data; /* initialization data */
863 struct fw_desc ucode_boot; /* bootstrap inst */
864 enum ucode_type ucode_type;
865 u8 ucode_write_complete; /* the image write is complete */
866
867
868 struct iwl4965_rxon_time_cmd rxon_timing;
869
870 /* We declare this const so it can only be
871 * changed via explicit cast within the
872 * routines that actually update the physical
873 * hardware */
874 const struct iwl_rxon_cmd active_rxon;
875 struct iwl_rxon_cmd staging_rxon;
876
877 int error_recovering;
878 struct iwl_rxon_cmd recovery_rxon;
879
880 /* 1st responses from initialize and runtime uCode images.
881 * 4965's initialize alive response contains some calibration data. */
882 struct iwl_init_alive_resp card_alive_init;
883 struct iwl_alive_resp card_alive;
884#ifdef CONFIG_IWLWIFI_RFKILL
885 struct rfkill *rfkill;
886#endif
887
888#ifdef CONFIG_IWLWIFI_LEDS
889 struct iwl_led led[IWL_LED_TRG_MAX];
890 unsigned long last_blink_time;
891 u8 last_blink_rate;
892 u8 allow_blinking;
893 u64 led_tpt;
894#endif
895
896 u16 active_rate;
897 u16 active_rate_basic;
898
899 u8 assoc_station_added;
900 u8 use_ant_b_for_management_frame; /* Tx antenna selection */
901 u8 start_calib;
902 struct iwl_sensitivity_data sensitivity_data;
903 struct iwl_chain_noise_data chain_noise_data;
904 __le16 sensitivity_tbl[HD_TABLE_SIZE];
905
906 struct iwl_ht_info current_ht_config;
907 u8 last_phy_res[100];
908
909 /* Rate scaling data */
910 s8 data_retry_limit;
911 u8 retry_rate;
912
913 wait_queue_head_t wait_command_queue;
914
915 int activity_timer_active;
916
917 /* Rx and Tx DMA processing queues */
918 struct iwl_rx_queue rxq;
919 struct iwl_tx_queue txq[IWL_MAX_NUM_QUEUES];
920 unsigned long txq_ctx_active_msk;
921 struct iwl_kw kw; /* keep warm address */
922 u32 scd_base_addr; /* scheduler sram base address */
923
924 unsigned long status;
925
926 int last_rx_rssi; /* From Rx packet statisitics */
927 int last_rx_noise; /* From beacon statistics */
928
929 /* counts mgmt, ctl, and data packets */
930 struct traffic_stats {
931 u32 cnt;
932 u64 bytes;
933 } tx_stats[3], rx_stats[3];
934
935 struct iwl_power_mgr power_data;
936
937 struct iwl_notif_statistics statistics;
938 unsigned long last_statistics_time;
939
940 /* context information */
941 u8 essid[IW_ESSID_MAX_SIZE];
942 u8 essid_len;
943 u16 rates_mask;
944
945 u32 power_mode;
946 u32 antenna;
947 u8 bssid[ETH_ALEN];
948 u16 rts_threshold;
949 u8 mac_addr[ETH_ALEN];
950
951 /*station table variables */
952 spinlock_t sta_lock;
953 int num_stations;
954 struct iwl_station_entry stations[IWL_STATION_COUNT];
955 struct iwl_wep_key wep_keys[WEP_KEYS_MAX];
956 u8 default_wep_key;
957 u8 key_mapping_key;
958 unsigned long ucode_key_table;
959
960 /* Indication if ieee80211_ops->open has been called */
961 u8 is_open;
962
963 u8 mac80211_registered;
964
965 /* Rx'd packet timing information */
966 u32 last_beacon_time;
967 u64 last_tsf;
968
969 /* eeprom */
970 u8 *eeprom;
971 struct iwl_eeprom_calib_info *calib_info;
972
973 enum ieee80211_if_types iw_mode;
974
975 struct sk_buff *ibss_beacon;
976
977 /* Last Rx'd beacon timestamp */
978 u64 timestamp;
979 u16 beacon_int;
980 struct ieee80211_vif *vif;
981
982 struct iwl_hw_params hw_params;
983 /* driver/uCode shared Tx Byte Counts and Rx status */
984 void *shared_virt;
985 int rb_closed_offset;
986 /* Physical Pointer to Tx Byte Counts and Rx status */
987 dma_addr_t shared_phys;
988
989 /* Current association information needed to configure the
990 * hardware */
991 u16 assoc_id;
992 u16 assoc_capability;
993 u8 ps_mode;
994
995 struct iwl_qos_info qos_data;
996
997 struct workqueue_struct *workqueue;
998
999 struct work_struct up;
1000 struct work_struct restart;
1001 struct work_struct calibrated_work;
1002 struct work_struct scan_completed;
1003 struct work_struct rx_replenish;
1004 struct work_struct rf_kill;
1005 struct work_struct abort_scan;
1006 struct work_struct update_link_led;
1007 struct work_struct auth_work;
1008 struct work_struct report_work;
1009 struct work_struct request_scan;
1010 struct work_struct beacon_update;
1011 struct work_struct set_monitor;
1012
1013 struct tasklet_struct irq_tasklet;
1014
1015 struct delayed_work set_power_save;
1016 struct delayed_work init_alive_start;
1017 struct delayed_work alive_start;
1018 struct delayed_work scan_check;
1019 /* TX Power */
1020 s8 tx_power_user_lmt;
1021 s8 tx_power_channel_lmt;
1022
1023#ifdef CONFIG_PM
1024 u32 pm_state[16];
1025#endif
1026
1027#ifdef CONFIG_IWLWIFI_DEBUG
1028 /* debugging info */
1029 u32 debug_level;
1030 u32 framecnt_to_us;
1031 atomic_t restrict_refcnt;
1032#ifdef CONFIG_IWLWIFI_DEBUGFS
1033 /* debugfs */
1034 struct iwl_debugfs *dbgfs;
1035#endif /* CONFIG_IWLWIFI_DEBUGFS */
1036#endif /* CONFIG_IWLWIFI_DEBUG */
1037
1038 struct work_struct txpower_work;
1039 u32 disable_sens_cal;
1040 u32 disable_chain_noise_cal;
1041 u32 disable_tx_power_cal;
1042 struct work_struct run_time_calib_work;
1043 struct timer_list statistics_periodic;
1044}; /*iwl_priv */
1045
1046static inline void iwl_txq_ctx_activate(struct iwl_priv *priv, int txq_id)
1047{
1048 set_bit(txq_id, &priv->txq_ctx_active_msk);
1049}
1050
1051static inline void iwl_txq_ctx_deactivate(struct iwl_priv *priv, int txq_id)
1052{
1053 clear_bit(txq_id, &priv->txq_ctx_active_msk);
1054}
1055
1056#ifdef CONFIG_IWLWIFI_DEBUG
1057const char *iwl_get_tx_fail_reason(u32 status);
1058#else
1059static inline const char *iwl_get_tx_fail_reason(u32 status) { return ""; }
1060#endif
1061
1062
1063static inline struct ieee80211_hdr *iwl_tx_queue_get_hdr(struct iwl_priv *priv,
1064 int txq_id, int idx)
1065{
1066 if (priv->txq[txq_id].txb[idx].skb[0])
1067 return (struct ieee80211_hdr *)priv->txq[txq_id].
1068 txb[idx].skb[0]->data;
1069 return NULL;
1070}
1071
1072
1073static inline int iwl_is_associated(struct iwl_priv *priv)
1074{
1075 return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
1076}
1077
1078static inline int is_channel_valid(const struct iwl_channel_info *ch_info)
1079{
1080 if (ch_info == NULL)
1081 return 0;
1082 return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
1083}
1084
1085static inline int is_channel_radar(const struct iwl_channel_info *ch_info)
1086{
1087 return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
1088}
1089
1090static inline u8 is_channel_a_band(const struct iwl_channel_info *ch_info)
1091{
1092 return ch_info->band == IEEE80211_BAND_5GHZ;
1093}
1094
1095static inline u8 is_channel_bg_band(const struct iwl_channel_info *ch_info)
1096{
1097 return ch_info->band == IEEE80211_BAND_2GHZ;
1098}
1099
1100static inline int is_channel_passive(const struct iwl_channel_info *ch)
1101{
1102 return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
1103}
1104
1105static inline int is_channel_ibss(const struct iwl_channel_info *ch)
1106{
1107 return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
1108}
1109
1110#ifdef CONFIG_IWLWIFI_DEBUG
1111static inline void iwl_print_hex_dump(struct iwl_priv *priv, int level,
1112 void *p, u32 len)
1113{
1114 if (!(priv->debug_level & level))
1115 return;
1116
1117 print_hex_dump(KERN_DEBUG, "iwl data: ", DUMP_PREFIX_OFFSET, 16, 1,
1118 p, len, 1);
1119}
1120#else
1121static inline void iwl_print_hex_dump(struct iwl_priv *priv, int level,
1122 void *p, u32 len)
1123{
1124}
1125#endif
1126
1127extern const struct iwl_channel_info *iwl_get_channel_info(
1128 const struct iwl_priv *priv, enum ieee80211_band band, u16 channel);
1129
1130/* Requires full declaration of iwl_priv before including */
1131
1132#endif /* __iwl_dev_h__ */
Linux kernel - Deliverables
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