iwl-dev.h revision 72e15d71b02a21fd7b94ee1af4ba3a41f722b1f3 
1/******************************************************************************
2 *
3 * Copyright(c) 2003 - 2010 Intel Corporation. All rights reserved.
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of version 2 of the GNU General Public License as
7 * published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
12 * more details.
13 *
14 * You should have received a copy of the GNU General Public License along with
15 * this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
17 *
18 * The full GNU General Public License is included in this distribution in the
19 * file called LICENSE.
20 *
21 * Contact Information:
22 *  Intel Linux Wireless <ilw@linux.intel.com>
23 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
24 *
25 *****************************************************************************/
26/*
27 * Please use this file (iwl-dev.h) for driver implementation definitions.
28 * Please use iwl-commands.h for uCode API definitions.
29 * Please use iwl-4965-hw.h for hardware-related definitions.
30 */
31
32#ifndef __iwl_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#include "iwl-eeprom.h"
40#include "iwl-csr.h"
41#include "iwl-prph.h"
42#include "iwl-fh.h"
43#include "iwl-debug.h"
44#include "iwl-4965-hw.h"
45#include "iwl-3945-hw.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_bgn_cfg;
56extern struct iwl_cfg iwl5100_abg_cfg;
57extern struct iwl_cfg iwl5150_agn_cfg;
58extern struct iwl_cfg iwl5150_abg_cfg;
59extern struct iwl_cfg iwl6000i_2agn_cfg;
60extern struct iwl_cfg iwl6000i_2abg_cfg;
61extern struct iwl_cfg iwl6000i_2bg_cfg;
62extern struct iwl_cfg iwl6000_3agn_cfg;
63extern struct iwl_cfg iwl6050_2agn_cfg;
64extern struct iwl_cfg iwl6050_2abg_cfg;
65extern struct iwl_cfg iwl1000_bgn_cfg;
66extern struct iwl_cfg iwl1000_bg_cfg;
67
68struct iwl_tx_queue;
69
70/* shared structures from iwl-5000.c */
71extern struct iwl_mod_params iwl50_mod_params;
72extern struct iwl_ucode_ops iwl5000_ucode;
73extern struct iwl_lib_ops iwl5000_lib;
74extern struct iwl_hcmd_ops iwl5000_hcmd;
75extern struct iwl_hcmd_utils_ops iwl5000_hcmd_utils;
76
77/* shared functions from iwl-5000.c */
78extern u16 iwl5000_get_hcmd_size(u8 cmd_id, u16 len);
79extern u16 iwl5000_build_addsta_hcmd(const struct iwl_addsta_cmd *cmd,
80				     u8 *data);
81extern void iwl5000_rts_tx_cmd_flag(struct ieee80211_tx_info *info,
82				    __le32 *tx_flags);
83extern int iwl5000_calc_rssi(struct iwl_priv *priv,
84			     struct iwl_rx_phy_res *rx_resp);
85extern void iwl5000_nic_config(struct iwl_priv *priv);
86extern u16 iwl5000_eeprom_calib_version(struct iwl_priv *priv);
87extern const u8 *iwl5000_eeprom_query_addr(const struct iwl_priv *priv,
88				    size_t offset);
89extern void iwl5000_txq_update_byte_cnt_tbl(struct iwl_priv *priv,
90					    struct iwl_tx_queue *txq,
91					    u16 byte_cnt);
92extern void iwl5000_txq_inval_byte_cnt_tbl(struct iwl_priv *priv,
93				    struct iwl_tx_queue *txq);
94extern int iwl5000_load_ucode(struct iwl_priv *priv);
95extern void iwl5000_init_alive_start(struct iwl_priv *priv);
96extern int iwl5000_alive_notify(struct iwl_priv *priv);
97extern int iwl5000_hw_set_hw_params(struct iwl_priv *priv);
98extern int iwl5000_txq_agg_enable(struct iwl_priv *priv, int txq_id,
99			   int tx_fifo, int sta_id, int tid, u16 ssn_idx);
100extern int iwl5000_txq_agg_disable(struct iwl_priv *priv, u16 txq_id,
101			    u16 ssn_idx, u8 tx_fifo);
102extern void iwl5000_txq_set_sched(struct iwl_priv *priv, u32 mask);
103extern void iwl5000_setup_deferred_work(struct iwl_priv *priv);
104extern void iwl5000_rx_handler_setup(struct iwl_priv *priv);
105extern int iwl5000_hw_valid_rtc_data_addr(u32 addr);
106extern int iwl5000_send_tx_power(struct iwl_priv *priv);
107extern void iwl5000_temperature(struct iwl_priv *priv);
108
109/* CT-KILL constants */
110#define CT_KILL_THRESHOLD_LEGACY   110 /* in Celsius */
111#define CT_KILL_THRESHOLD	   114 /* in Celsius */
112#define CT_KILL_EXIT_THRESHOLD     95  /* in Celsius */
113
114/* Default noise level to report when noise measurement is not available.
115 *   This may be because we're:
116 *   1)  Not associated (4965, no beacon statistics being sent to driver)
117 *   2)  Scanning (noise measurement does not apply to associated channel)
118 *   3)  Receiving CCK (3945 delivers noise info only for OFDM frames)
119 * Use default noise value of -127 ... this is below the range of measurable
120 *   Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
121 *   Also, -127 works better than 0 when averaging frames with/without
122 *   noise info (e.g. averaging might be done in app); measured dBm values are
123 *   always negative ... using a negative value as the default keeps all
124 *   averages within an s8's (used in some apps) range of negative values. */
125#define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
126
127/*
128 * RTS threshold here is total size [2347] minus 4 FCS bytes
129 * Per spec:
130 *   a value of 0 means RTS on all data/management packets
131 *   a value > max MSDU size means no RTS
132 * else RTS for data/management frames where MPDU is larger
133 *   than RTS value.
134 */
135#define DEFAULT_RTS_THRESHOLD     2347U
136#define MIN_RTS_THRESHOLD         0U
137#define MAX_RTS_THRESHOLD         2347U
138#define MAX_MSDU_SIZE		  2304U
139#define MAX_MPDU_SIZE		  2346U
140#define DEFAULT_BEACON_INTERVAL   100U
141#define	DEFAULT_SHORT_RETRY_LIMIT 7U
142#define	DEFAULT_LONG_RETRY_LIMIT  4U
143
144struct iwl_rx_mem_buffer {
145	dma_addr_t page_dma;
146	struct page *page;
147	struct list_head list;
148};
149
150#define rxb_addr(r) page_address(r->page)
151
152/* defined below */
153struct iwl_device_cmd;
154
155struct iwl_cmd_meta {
156	/* only for SYNC commands, iff the reply skb is wanted */
157	struct iwl_host_cmd *source;
158	/*
159	 * only for ASYNC commands
160	 * (which is somewhat stupid -- look at iwl-sta.c for instance
161	 * which duplicates a bunch of code because the callback isn't
162	 * invoked for SYNC commands, if it were and its result passed
163	 * through it would be simpler...)
164	 */
165	void (*callback)(struct iwl_priv *priv,
166			 struct iwl_device_cmd *cmd,
167			 struct iwl_rx_packet *pkt);
168
169	/* The CMD_SIZE_HUGE flag bit indicates that the command
170	 * structure is stored at the end of the shared queue memory. */
171	u32 flags;
172
173	DECLARE_PCI_UNMAP_ADDR(mapping)
174	DECLARE_PCI_UNMAP_LEN(len)
175};
176
177/*
178 * Generic queue structure
179 *
180 * Contains common data for Rx and Tx queues
181 */
182struct iwl_queue {
183	int n_bd;              /* number of BDs in this queue */
184	int write_ptr;       /* 1-st empty entry (index) host_w*/
185	int read_ptr;         /* last used entry (index) host_r*/
186	dma_addr_t dma_addr;   /* physical addr for BD's */
187	int n_window;	       /* safe queue window */
188	u32 id;
189	int low_mark;	       /* low watermark, resume queue if free
190				* space more than this */
191	int high_mark;         /* high watermark, stop queue if free
192				* space less than this */
193} __attribute__ ((packed));
194
195/* One for each TFD */
196struct iwl_tx_info {
197	struct sk_buff *skb[IWL_NUM_OF_TBS - 1];
198};
199
200/**
201 * struct iwl_tx_queue - Tx Queue for DMA
202 * @q: generic Rx/Tx queue descriptor
203 * @bd: base of circular buffer of TFDs
204 * @cmd: array of command/TX buffer pointers
205 * @meta: array of meta data for each command/tx buffer
206 * @dma_addr_cmd: physical address of cmd/tx buffer array
207 * @txb: array of per-TFD driver data
208 * @need_update: indicates need to update read/write index
209 * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
210 *
211 * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
212 * descriptors) and required locking structures.
213 */
214#define TFD_TX_CMD_SLOTS 256
215#define TFD_CMD_SLOTS 32
216
217struct iwl_tx_queue {
218	struct iwl_queue q;
219	void *tfds;
220	struct iwl_device_cmd **cmd;
221	struct iwl_cmd_meta *meta;
222	struct iwl_tx_info *txb;
223	u8 need_update;
224	u8 sched_retry;
225	u8 active;
226	u8 swq_id;
227};
228
229#define IWL_NUM_SCAN_RATES         (2)
230
231struct iwl4965_channel_tgd_info {
232	u8 type;
233	s8 max_power;
234};
235
236struct iwl4965_channel_tgh_info {
237	s64 last_radar_time;
238};
239
240#define IWL4965_MAX_RATE (33)
241
242struct iwl3945_clip_group {
243	/* maximum power level to prevent clipping for each rate, derived by
244	 *   us from this band's saturation power in EEPROM */
245	const s8 clip_powers[IWL_MAX_RATES];
246};
247
248/* current Tx power values to use, one for each rate for each channel.
249 * requested power is limited by:
250 * -- regulatory EEPROM limits for this channel
251 * -- hardware capabilities (clip-powers)
252 * -- spectrum management
253 * -- user preference (e.g. iwconfig)
254 * when requested power is set, base power index must also be set. */
255struct iwl3945_channel_power_info {
256	struct iwl3945_tx_power tpc;	/* actual radio and DSP gain settings */
257	s8 power_table_index;	/* actual (compenst'd) index into gain table */
258	s8 base_power_index;	/* gain index for power at factory temp. */
259	s8 requested_power;	/* power (dBm) requested for this chnl/rate */
260};
261
262/* current scan Tx power values to use, one for each scan rate for each
263 * channel. */
264struct iwl3945_scan_power_info {
265	struct iwl3945_tx_power tpc;	/* actual radio and DSP gain settings */
266	s8 power_table_index;	/* actual (compenst'd) index into gain table */
267	s8 requested_power;	/* scan pwr (dBm) requested for chnl/rate */
268};
269
270/*
271 * One for each channel, holds all channel setup data
272 * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
273 *     with one another!
274 */
275struct iwl_channel_info {
276	struct iwl4965_channel_tgd_info tgd;
277	struct iwl4965_channel_tgh_info tgh;
278	struct iwl_eeprom_channel eeprom;	/* EEPROM regulatory limit */
279	struct iwl_eeprom_channel ht40_eeprom;	/* EEPROM regulatory limit for
280						 * HT40 channel */
281
282	u8 channel;	  /* channel number */
283	u8 flags;	  /* flags copied from EEPROM */
284	s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
285	s8 curr_txpow;	  /* (dBm) regulatory/spectrum/user (not h/w) limit */
286	s8 min_power;	  /* always 0 */
287	s8 scan_power;	  /* (dBm) regul. eeprom, direct scans, any rate */
288
289	u8 group_index;	  /* 0-4, maps channel to group1/2/3/4/5 */
290	u8 band_index;	  /* 0-4, maps channel to band1/2/3/4/5 */
291	enum ieee80211_band band;
292
293	/* HT40 channel info */
294	s8 ht40_max_power_avg;	/* (dBm) regul. eeprom, normal Tx, any rate */
295	u8 ht40_flags;		/* flags copied from EEPROM */
296	u8 ht40_extension_channel; /* HT_IE_EXT_CHANNEL_* */
297
298	/* Radio/DSP gain settings for each "normal" data Tx rate.
299	 * These include, in addition to RF and DSP gain, a few fields for
300	 *   remembering/modifying gain settings (indexes). */
301	struct iwl3945_channel_power_info power_info[IWL4965_MAX_RATE];
302
303	/* Radio/DSP gain settings for each scan rate, for directed scans. */
304	struct iwl3945_scan_power_info scan_pwr_info[IWL_NUM_SCAN_RATES];
305};
306
307#define IWL_TX_FIFO_AC0	0
308#define IWL_TX_FIFO_AC1	1
309#define IWL_TX_FIFO_AC2	2
310#define IWL_TX_FIFO_AC3	3
311#define IWL_TX_FIFO_HCCA_1	5
312#define IWL_TX_FIFO_HCCA_2	6
313#define IWL_TX_FIFO_NONE	7
314
315/* Minimum number of queues. MAX_NUM is defined in hw specific files.
316 * Set the minimum to accommodate the 4 standard TX queues, 1 command
317 * queue, 2 (unused) HCCA queues, and 4 HT queues (one for each AC) */
318#define IWL_MIN_NUM_QUEUES	10
319
320/*
321 * Queue #4 is the command queue for 3945/4965/5x00/1000/6x00,
322 * the driver maps it into the appropriate device FIFO for the
323 * uCode.
324 */
325#define IWL_CMD_QUEUE_NUM	4
326
327/* Power management (not Tx power) structures */
328
329enum iwl_pwr_src {
330	IWL_PWR_SRC_VMAIN,
331	IWL_PWR_SRC_VAUX,
332};
333
334#define IEEE80211_DATA_LEN              2304
335#define IEEE80211_4ADDR_LEN             30
336#define IEEE80211_HLEN                  (IEEE80211_4ADDR_LEN)
337#define IEEE80211_FRAME_LEN             (IEEE80211_DATA_LEN + IEEE80211_HLEN)
338
339struct iwl_frame {
340	union {
341		struct ieee80211_hdr frame;
342		struct iwl_tx_beacon_cmd beacon;
343		u8 raw[IEEE80211_FRAME_LEN];
344		u8 cmd[360];
345	} u;
346	struct list_head list;
347};
348
349#define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
350#define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
351#define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
352
353enum {
354	CMD_SYNC = 0,
355	CMD_SIZE_NORMAL = 0,
356	CMD_NO_SKB = 0,
357	CMD_SIZE_HUGE = (1 << 0),
358	CMD_ASYNC = (1 << 1),
359	CMD_WANT_SKB = (1 << 2),
360};
361
362#define DEF_CMD_PAYLOAD_SIZE 320
363
364/*
365 * IWL_LINK_HDR_MAX should include ieee80211_hdr, radiotap header,
366 * SNAP header and alignment. It should also be big enough for 802.11
367 * control frames.
368 */
369#define IWL_LINK_HDR_MAX 64
370
371/**
372 * struct iwl_device_cmd
373 *
374 * For allocation of the command and tx queues, this establishes the overall
375 * size of the largest command we send to uCode, except for a scan command
376 * (which is relatively huge; space is allocated separately).
377 */
378struct iwl_device_cmd {
379	struct iwl_cmd_header hdr;	/* uCode API */
380	union {
381		u32 flags;
382		u8 val8;
383		u16 val16;
384		u32 val32;
385		struct iwl_tx_cmd tx;
386		struct iwl6000_channel_switch_cmd chswitch;
387		u8 payload[DEF_CMD_PAYLOAD_SIZE];
388	} __attribute__ ((packed)) cmd;
389} __attribute__ ((packed));
390
391#define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_device_cmd))
392
393
394struct iwl_host_cmd {
395	const void *data;
396	unsigned long reply_page;
397	void (*callback)(struct iwl_priv *priv,
398			 struct iwl_device_cmd *cmd,
399			 struct iwl_rx_packet *pkt);
400	u32 flags;
401	u16 len;
402	u8 id;
403};
404
405#define SUP_RATE_11A_MAX_NUM_CHANNELS  8
406#define SUP_RATE_11B_MAX_NUM_CHANNELS  4
407#define SUP_RATE_11G_MAX_NUM_CHANNELS  12
408
409/**
410 * struct iwl_rx_queue - Rx queue
411 * @bd: driver's pointer to buffer of receive buffer descriptors (rbd)
412 * @dma_addr: bus address of buffer of receive buffer descriptors (rbd)
413 * @read: Shared index to newest available Rx buffer
414 * @write: Shared index to oldest written Rx packet
415 * @free_count: Number of pre-allocated buffers in rx_free
416 * @rx_free: list of free SKBs for use
417 * @rx_used: List of Rx buffers with no SKB
418 * @need_update: flag to indicate we need to update read/write index
419 * @rb_stts: driver's pointer to receive buffer status
420 * @rb_stts_dma: bus address of receive buffer status
421 *
422 * NOTE:  rx_free and rx_used are used as a FIFO for iwl_rx_mem_buffers
423 */
424struct iwl_rx_queue {
425	__le32 *bd;
426	dma_addr_t dma_addr;
427	struct iwl_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
428	struct iwl_rx_mem_buffer *queue[RX_QUEUE_SIZE];
429	u32 read;
430	u32 write;
431	u32 free_count;
432	u32 write_actual;
433	struct list_head rx_free;
434	struct list_head rx_used;
435	int need_update;
436	struct iwl_rb_status *rb_stts;
437	dma_addr_t rb_stts_dma;
438	spinlock_t lock;
439};
440
441#define IWL_SUPPORTED_RATES_IE_LEN         8
442
443#define MAX_TID_COUNT        9
444
445#define IWL_INVALID_RATE     0xFF
446#define IWL_INVALID_VALUE    -1
447
448/**
449 * struct iwl_ht_agg -- aggregation status while waiting for block-ack
450 * @txq_id: Tx queue used for Tx attempt
451 * @frame_count: # frames attempted by Tx command
452 * @wait_for_ba: Expect block-ack before next Tx reply
453 * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window
454 * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window
455 * @bitmap1: High order, one bit for each frame pending ACK in Tx window
456 * @rate_n_flags: Rate at which Tx was attempted
457 *
458 * If REPLY_TX indicates that aggregation was attempted, driver must wait
459 * for block ack (REPLY_COMPRESSED_BA).  This struct stores tx reply info
460 * until block ack arrives.
461 */
462struct iwl_ht_agg {
463	u16 txq_id;
464	u16 frame_count;
465	u16 wait_for_ba;
466	u16 start_idx;
467	u64 bitmap;
468	u32 rate_n_flags;
469#define IWL_AGG_OFF 0
470#define IWL_AGG_ON 1
471#define IWL_EMPTYING_HW_QUEUE_ADDBA 2
472#define IWL_EMPTYING_HW_QUEUE_DELBA 3
473	u8 state;
474};
475
476
477struct iwl_tid_data {
478	u16 seq_number;
479	u16 tfds_in_queue;
480	struct iwl_ht_agg agg;
481};
482
483struct iwl_hw_key {
484	enum ieee80211_key_alg alg;
485	int keylen;
486	u8 keyidx;
487	u8 key[32];
488};
489
490union iwl_ht_rate_supp {
491	u16 rates;
492	struct {
493		u8 siso_rate;
494		u8 mimo_rate;
495	};
496};
497
498#define CFG_HT_RX_AMPDU_FACTOR_DEF  (0x3)
499
500/*
501 * Maximal MPDU density for TX aggregation
502 * 4 - 2us density
503 * 5 - 4us density
504 * 6 - 8us density
505 * 7 - 16us density
506 */
507#define CFG_HT_MPDU_DENSITY_4USEC   (0x5)
508#define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_4USEC
509
510struct iwl_ht_config {
511	/* self configuration data */
512	bool is_ht;
513	bool is_40mhz;
514	bool single_chain_sufficient;
515	enum ieee80211_smps_mode smps; /* current smps mode */
516	/* BSS related data */
517	u8 extension_chan_offset;
518	u8 ht_protection;
519	u8 non_GF_STA_present;
520};
521
522union iwl_qos_capabity {
523	struct {
524		u8 edca_count:4;	/* bit 0-3 */
525		u8 q_ack:1;		/* bit 4 */
526		u8 queue_request:1;	/* bit 5 */
527		u8 txop_request:1;	/* bit 6 */
528		u8 reserved:1;		/* bit 7 */
529	} q_AP;
530	struct {
531		u8 acvo_APSD:1;		/* bit 0 */
532		u8 acvi_APSD:1;		/* bit 1 */
533		u8 ac_bk_APSD:1;	/* bit 2 */
534		u8 ac_be_APSD:1;	/* bit 3 */
535		u8 q_ack:1;		/* bit 4 */
536		u8 max_len:2;		/* bit 5-6 */
537		u8 more_data_ack:1;	/* bit 7 */
538	} q_STA;
539	u8 val;
540};
541
542/* QoS structures */
543struct iwl_qos_info {
544	int qos_active;
545	union iwl_qos_capabity qos_cap;
546	struct iwl_qosparam_cmd def_qos_parm;
547};
548
549struct iwl_station_entry {
550	struct iwl_addsta_cmd sta;
551	struct iwl_tid_data tid[MAX_TID_COUNT];
552	u8 used;
553	struct iwl_hw_key keyinfo;
554};
555
556/*
557 * iwl_station_priv: Driver's private station information
558 *
559 * When mac80211 creates a station it reserves some space (hw->sta_data_size)
560 * in the structure for use by driver. This structure is places in that
561 * space.
562 */
563struct iwl_station_priv {
564	struct iwl_lq_sta lq_sta;
565	atomic_t pending_frames;
566	bool client;
567	bool asleep;
568};
569
570/* one for each uCode image (inst/data, boot/init/runtime) */
571struct fw_desc {
572	void *v_addr;		/* access by driver */
573	dma_addr_t p_addr;	/* access by card's busmaster DMA */
574	u32 len;		/* bytes */
575};
576
577/* uCode file layout */
578struct iwl_ucode_header {
579	__le32 ver;	/* major/minor/API/serial */
580	union {
581		struct {
582			__le32 inst_size;	/* bytes of runtime code */
583			__le32 data_size;	/* bytes of runtime data */
584			__le32 init_size;	/* bytes of init code */
585			__le32 init_data_size;	/* bytes of init data */
586			__le32 boot_size;	/* bytes of bootstrap code */
587			u8 data[0];		/* in same order as sizes */
588		} v1;
589		struct {
590			__le32 build;		/* build number */
591			__le32 inst_size;	/* bytes of runtime code */
592			__le32 data_size;	/* bytes of runtime data */
593			__le32 init_size;	/* bytes of init code */
594			__le32 init_data_size;	/* bytes of init data */
595			__le32 boot_size;	/* bytes of bootstrap code */
596			u8 data[0];		/* in same order as sizes */
597		} v2;
598	} u;
599};
600#define UCODE_HEADER_SIZE(ver) ((ver) == 1 ? 24 : 28)
601
602struct iwl4965_ibss_seq {
603	u8 mac[ETH_ALEN];
604	u16 seq_num;
605	u16 frag_num;
606	unsigned long packet_time;
607	struct list_head list;
608};
609
610struct iwl_sensitivity_ranges {
611	u16 min_nrg_cck;
612	u16 max_nrg_cck;
613
614	u16 nrg_th_cck;
615	u16 nrg_th_ofdm;
616
617	u16 auto_corr_min_ofdm;
618	u16 auto_corr_min_ofdm_mrc;
619	u16 auto_corr_min_ofdm_x1;
620	u16 auto_corr_min_ofdm_mrc_x1;
621
622	u16 auto_corr_max_ofdm;
623	u16 auto_corr_max_ofdm_mrc;
624	u16 auto_corr_max_ofdm_x1;
625	u16 auto_corr_max_ofdm_mrc_x1;
626
627	u16 auto_corr_max_cck;
628	u16 auto_corr_max_cck_mrc;
629	u16 auto_corr_min_cck;
630	u16 auto_corr_min_cck_mrc;
631
632	u16 barker_corr_th_min;
633	u16 barker_corr_th_min_mrc;
634	u16 nrg_th_cca;
635};
636
637
638#define KELVIN_TO_CELSIUS(x) ((x)-273)
639#define CELSIUS_TO_KELVIN(x) ((x)+273)
640
641
642/**
643 * struct iwl_hw_params
644 * @max_txq_num: Max # Tx queues supported
645 * @dma_chnl_num: Number of Tx DMA/FIFO channels
646 * @scd_bc_tbls_size: size of scheduler byte count tables
647 * @tfd_size: TFD size
648 * @tx/rx_chains_num: Number of TX/RX chains
649 * @valid_tx/rx_ant: usable antennas
650 * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
651 * @max_rxq_log: Log-base-2 of max_rxq_size
652 * @rx_page_order: Rx buffer page order
653 * @rx_wrt_ptr_reg: FH{39}_RSCSR_CHNL0_WPTR
654 * @max_stations:
655 * @bcast_sta_id:
656 * @ht40_channel: is 40MHz width possible in band 2.4
657 * BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ)
658 * @sw_crypto: 0 for hw, 1 for sw
659 * @max_xxx_size: for ucode uses
660 * @ct_kill_threshold: temperature threshold
661 * @calib_init_cfg: setup initial calibrations for the hw
662 * @struct iwl_sensitivity_ranges: range of sensitivity values
663 */
664struct iwl_hw_params {
665	u8 max_txq_num;
666	u8 dma_chnl_num;
667	u16 scd_bc_tbls_size;
668	u32 tfd_size;
669	u8  tx_chains_num;
670	u8  rx_chains_num;
671	u8  valid_tx_ant;
672	u8  valid_rx_ant;
673	u16 max_rxq_size;
674	u16 max_rxq_log;
675	u32 rx_page_order;
676	u32 rx_wrt_ptr_reg;
677	u8  max_stations;
678	u8  bcast_sta_id;
679	u8  ht40_channel;
680	u8  max_beacon_itrvl;	/* in 1024 ms */
681	u32 max_inst_size;
682	u32 max_data_size;
683	u32 max_bsm_size;
684	u32 ct_kill_threshold; /* value in hw-dependent units */
685	u32 ct_kill_exit_threshold; /* value in hw-dependent units */
686				    /* for 1000, 6000 series and up */
687	u32 calib_init_cfg;
688	const struct iwl_sensitivity_ranges *sens;
689};
690
691
692/******************************************************************************
693 *
694 * Functions implemented in core module which are forward declared here
695 * for use by iwl-[4-5].c
696 *
697 * NOTE:  The implementation of these functions are not hardware specific
698 * which is why they are in the core module files.
699 *
700 * Naming convention --
701 * iwl_         <-- Is part of iwlwifi
702 * iwlXXXX_     <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
703 * iwl4965_bg_      <-- Called from work queue context
704 * iwl4965_mac_     <-- mac80211 callback
705 *
706 ****************************************************************************/
707extern void iwl_update_chain_flags(struct iwl_priv *priv);
708extern int iwl_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src);
709extern const u8 iwl_bcast_addr[ETH_ALEN];
710extern int iwl_rxq_stop(struct iwl_priv *priv);
711extern void iwl_txq_ctx_stop(struct iwl_priv *priv);
712extern int iwl_queue_space(const struct iwl_queue *q);
713static inline int iwl_queue_used(const struct iwl_queue *q, int i)
714{
715	return q->write_ptr >= q->read_ptr ?
716		(i >= q->read_ptr && i < q->write_ptr) :
717		!(i < q->read_ptr && i >= q->write_ptr);
718}
719
720
721static inline u8 get_cmd_index(struct iwl_queue *q, u32 index, int is_huge)
722{
723	/*
724	 * This is for init calibration result and scan command which
725	 * required buffer > TFD_MAX_PAYLOAD_SIZE,
726	 * the big buffer at end of command array
727	 */
728	if (is_huge)
729		return q->n_window;	/* must be power of 2 */
730
731	/* Otherwise, use normal size buffers */
732	return index & (q->n_window - 1);
733}
734
735
736struct iwl_dma_ptr {
737	dma_addr_t dma;
738	void *addr;
739	size_t size;
740};
741
742#define IWL_OPERATION_MODE_AUTO     0
743#define IWL_OPERATION_MODE_HT_ONLY  1
744#define IWL_OPERATION_MODE_MIXED    2
745#define IWL_OPERATION_MODE_20MHZ    3
746
747#define IWL_TX_CRC_SIZE 4
748#define IWL_TX_DELIMITER_SIZE 4
749
750#define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
751
752/* Sensitivity and chain noise calibration */
753#define INITIALIZATION_VALUE		0xFFFF
754#define IWL4965_CAL_NUM_BEACONS		20
755#define IWL_CAL_NUM_BEACONS		16
756#define MAXIMUM_ALLOWED_PATHLOSS	15
757
758#define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
759
760#define MAX_FA_OFDM  50
761#define MIN_FA_OFDM  5
762#define MAX_FA_CCK   50
763#define MIN_FA_CCK   5
764
765#define AUTO_CORR_STEP_OFDM       1
766
767#define AUTO_CORR_STEP_CCK     3
768#define AUTO_CORR_MAX_TH_CCK   160
769
770#define NRG_DIFF               2
771#define NRG_STEP_CCK           2
772#define NRG_MARGIN             8
773#define MAX_NUMBER_CCK_NO_FA 100
774
775#define AUTO_CORR_CCK_MIN_VAL_DEF    (125)
776
777#define CHAIN_A             0
778#define CHAIN_B             1
779#define CHAIN_C             2
780#define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
781#define ALL_BAND_FILTER			0xFF00
782#define IN_BAND_FILTER			0xFF
783#define MIN_AVERAGE_NOISE_MAX_VALUE	0xFFFFFFFF
784
785#define NRG_NUM_PREV_STAT_L     20
786#define NUM_RX_CHAINS           3
787
788enum iwl4965_false_alarm_state {
789	IWL_FA_TOO_MANY = 0,
790	IWL_FA_TOO_FEW = 1,
791	IWL_FA_GOOD_RANGE = 2,
792};
793
794enum iwl4965_chain_noise_state {
795	IWL_CHAIN_NOISE_ALIVE = 0,  /* must be 0 */
796	IWL_CHAIN_NOISE_ACCUMULATE,
797	IWL_CHAIN_NOISE_CALIBRATED,
798	IWL_CHAIN_NOISE_DONE,
799};
800
801enum iwl4965_calib_enabled_state {
802	IWL_CALIB_DISABLED = 0,  /* must be 0 */
803	IWL_CALIB_ENABLED = 1,
804};
805
806
807/*
808 * enum iwl_calib
809 * defines the order in which results of initial calibrations
810 * should be sent to the runtime uCode
811 */
812enum iwl_calib {
813	IWL_CALIB_XTAL,
814	IWL_CALIB_DC,
815	IWL_CALIB_LO,
816	IWL_CALIB_TX_IQ,
817	IWL_CALIB_TX_IQ_PERD,
818	IWL_CALIB_BASE_BAND,
819	IWL_CALIB_MAX
820};
821
822/* Opaque calibration results */
823struct iwl_calib_result {
824	void *buf;
825	size_t buf_len;
826};
827
828enum ucode_type {
829	UCODE_NONE = 0,
830	UCODE_INIT,
831	UCODE_RT
832};
833
834/* Sensitivity calib data */
835struct iwl_sensitivity_data {
836	u32 auto_corr_ofdm;
837	u32 auto_corr_ofdm_mrc;
838	u32 auto_corr_ofdm_x1;
839	u32 auto_corr_ofdm_mrc_x1;
840	u32 auto_corr_cck;
841	u32 auto_corr_cck_mrc;
842
843	u32 last_bad_plcp_cnt_ofdm;
844	u32 last_fa_cnt_ofdm;
845	u32 last_bad_plcp_cnt_cck;
846	u32 last_fa_cnt_cck;
847
848	u32 nrg_curr_state;
849	u32 nrg_prev_state;
850	u32 nrg_value[10];
851	u8  nrg_silence_rssi[NRG_NUM_PREV_STAT_L];
852	u32 nrg_silence_ref;
853	u32 nrg_energy_idx;
854	u32 nrg_silence_idx;
855	u32 nrg_th_cck;
856	s32 nrg_auto_corr_silence_diff;
857	u32 num_in_cck_no_fa;
858	u32 nrg_th_ofdm;
859
860	u16 barker_corr_th_min;
861	u16 barker_corr_th_min_mrc;
862	u16 nrg_th_cca;
863};
864
865/* Chain noise (differential Rx gain) calib data */
866struct iwl_chain_noise_data {
867	u32 active_chains;
868	u32 chain_noise_a;
869	u32 chain_noise_b;
870	u32 chain_noise_c;
871	u32 chain_signal_a;
872	u32 chain_signal_b;
873	u32 chain_signal_c;
874	u16 beacon_count;
875	u8 disconn_array[NUM_RX_CHAINS];
876	u8 delta_gain_code[NUM_RX_CHAINS];
877	u8 radio_write;
878	u8 state;
879};
880
881#define	EEPROM_SEM_TIMEOUT 10		/* milliseconds */
882#define EEPROM_SEM_RETRY_LIMIT 1000	/* number of attempts (not time) */
883
884#define IWL_TRAFFIC_ENTRIES	(256)
885#define IWL_TRAFFIC_ENTRY_SIZE  (64)
886
887enum {
888	MEASUREMENT_READY = (1 << 0),
889	MEASUREMENT_ACTIVE = (1 << 1),
890};
891
892enum iwl_nvm_type {
893	NVM_DEVICE_TYPE_EEPROM = 0,
894	NVM_DEVICE_TYPE_OTP,
895};
896
897/*
898 * Two types of OTP memory access modes
899 *   IWL_OTP_ACCESS_ABSOLUTE - absolute address mode,
900 * 			        based on physical memory addressing
901 *   IWL_OTP_ACCESS_RELATIVE - relative address mode,
902 * 			       based on logical memory addressing
903 */
904enum iwl_access_mode {
905	IWL_OTP_ACCESS_ABSOLUTE,
906	IWL_OTP_ACCESS_RELATIVE,
907};
908
909/**
910 * enum iwl_pa_type - Power Amplifier type
911 * @IWL_PA_SYSTEM:  based on uCode configuration
912 * @IWL_PA_INTERNAL: use Internal only
913 */
914enum iwl_pa_type {
915	IWL_PA_SYSTEM = 0,
916	IWL_PA_INTERNAL = 1,
917};
918
919/* interrupt statistics */
920struct isr_statistics {
921	u32 hw;
922	u32 sw;
923	u32 sw_err;
924	u32 sch;
925	u32 alive;
926	u32 rfkill;
927	u32 ctkill;
928	u32 wakeup;
929	u32 rx;
930	u32 rx_handlers[REPLY_MAX];
931	u32 tx;
932	u32 unhandled;
933};
934
935#ifdef CONFIG_IWLWIFI_DEBUGFS
936/* management statistics */
937enum iwl_mgmt_stats {
938	MANAGEMENT_ASSOC_REQ = 0,
939	MANAGEMENT_ASSOC_RESP,
940	MANAGEMENT_REASSOC_REQ,
941	MANAGEMENT_REASSOC_RESP,
942	MANAGEMENT_PROBE_REQ,
943	MANAGEMENT_PROBE_RESP,
944	MANAGEMENT_BEACON,
945	MANAGEMENT_ATIM,
946	MANAGEMENT_DISASSOC,
947	MANAGEMENT_AUTH,
948	MANAGEMENT_DEAUTH,
949	MANAGEMENT_ACTION,
950	MANAGEMENT_MAX,
951};
952/* control statistics */
953enum iwl_ctrl_stats {
954	CONTROL_BACK_REQ =  0,
955	CONTROL_BACK,
956	CONTROL_PSPOLL,
957	CONTROL_RTS,
958	CONTROL_CTS,
959	CONTROL_ACK,
960	CONTROL_CFEND,
961	CONTROL_CFENDACK,
962	CONTROL_MAX,
963};
964
965struct traffic_stats {
966	u32 mgmt[MANAGEMENT_MAX];
967	u32 ctrl[CONTROL_MAX];
968	u32 data_cnt;
969	u64 data_bytes;
970};
971#else
972struct traffic_stats {
973	u64 data_bytes;
974};
975#endif
976
977/*
978 * iwl_switch_rxon: "channel switch" structure
979 *
980 * @ switch_in_progress: channel switch in progress
981 * @ channel: new channel
982 */
983struct iwl_switch_rxon {
984	bool switch_in_progress;
985	__le16 channel;
986};
987
988/*
989 * schedule the timer to wake up every UCODE_TRACE_PERIOD milliseconds
990 * to perform continuous uCode event logging operation if enabled
991 */
992#define UCODE_TRACE_PERIOD (100)
993
994/*
995 * iwl_event_log: current uCode event log position
996 *
997 * @ucode_trace: enable/disable ucode continuous trace timer
998 * @num_wraps: how many times the event buffer wraps
999 * @next_entry:  the entry just before the next one that uCode would fill
1000 * @non_wraps_count: counter for no wrap detected when dump ucode events
1001 * @wraps_once_count: counter for wrap once detected when dump ucode events
1002 * @wraps_more_count: counter for wrap more than once detected
1003 *		      when dump ucode events
1004 */
1005struct iwl_event_log {
1006	bool ucode_trace;
1007	u32 num_wraps;
1008	u32 next_entry;
1009	int non_wraps_count;
1010	int wraps_once_count;
1011	int wraps_more_count;
1012};
1013
1014/*
1015 * host interrupt timeout value
1016 * used with setting interrupt coalescing timer
1017 * the CSR_INT_COALESCING is an 8 bit register in 32-usec unit
1018 *
1019 * default interrupt coalescing timer is 64 x 32 = 2048 usecs
1020 * default interrupt coalescing calibration timer is 16 x 32 = 512 usecs
1021 */
1022#define IWL_HOST_INT_TIMEOUT_MAX	(0xFF)
1023#define IWL_HOST_INT_TIMEOUT_DEF	(0x40)
1024#define IWL_HOST_INT_TIMEOUT_MIN	(0x0)
1025#define IWL_HOST_INT_CALIB_TIMEOUT_MAX	(0xFF)
1026#define IWL_HOST_INT_CALIB_TIMEOUT_DEF	(0x10)
1027#define IWL_HOST_INT_CALIB_TIMEOUT_MIN	(0x0)
1028
1029/*
1030 * This is the threshold value of plcp error rate per 100mSecs.  It is
1031 * used to set and check for the validity of plcp_delta.
1032 */
1033#define IWL_MAX_PLCP_ERR_THRESHOLD_MIN	(0)
1034#define IWL_MAX_PLCP_ERR_THRESHOLD_DEF	(50)
1035#define IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF	(100)
1036#define IWL_MAX_PLCP_ERR_EXT_LONG_THRESHOLD_DEF	(200)
1037#define IWL_MAX_PLCP_ERR_THRESHOLD_MAX	(255)
1038
1039#define IWL_DELAY_NEXT_FORCE_RF_RESET  (HZ*3)
1040#define IWL_DELAY_NEXT_FORCE_FW_RELOAD (HZ*5)
1041
1042enum iwl_reset {
1043	IWL_RF_RESET = 0,
1044	IWL_FW_RESET,
1045	IWL_MAX_FORCE_RESET,
1046};
1047
1048struct iwl_force_reset {
1049	int reset_request_count;
1050	int reset_success_count;
1051	int reset_reject_count;
1052	unsigned long reset_duration;
1053	unsigned long last_force_reset_jiffies;
1054};
1055
1056struct iwl_priv {
1057
1058	/* ieee device used by generic ieee processing code */
1059	struct ieee80211_hw *hw;
1060	struct ieee80211_channel *ieee_channels;
1061	struct ieee80211_rate *ieee_rates;
1062	struct iwl_cfg *cfg;
1063
1064	/* temporary frame storage list */
1065	struct list_head free_frames;
1066	int frames_count;
1067
1068	enum ieee80211_band band;
1069	int alloc_rxb_page;
1070
1071	void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv,
1072				       struct iwl_rx_mem_buffer *rxb);
1073
1074	struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
1075
1076	/* spectrum measurement report caching */
1077	struct iwl_spectrum_notification measure_report;
1078	u8 measurement_status;
1079
1080	/* ucode beacon time */
1081	u32 ucode_beacon_time;
1082	int missed_beacon_threshold;
1083
1084	/* storing the jiffies when the plcp error rate is received */
1085	unsigned long plcp_jiffies;
1086
1087	/* force reset */
1088	struct iwl_force_reset force_reset[IWL_MAX_FORCE_RESET];
1089
1090	/* we allocate array of iwl4965_channel_info for NIC's valid channels.
1091	 *    Access via channel # using indirect index array */
1092	struct iwl_channel_info *channel_info;	/* channel info array */
1093	u8 channel_count;	/* # of channels */
1094
1095	/* thermal calibration */
1096	s32 temperature;	/* degrees Kelvin */
1097	s32 last_temperature;
1098
1099	/* init calibration results */
1100	struct iwl_calib_result calib_results[IWL_CALIB_MAX];
1101
1102	/* Scan related variables */
1103	unsigned long next_scan_jiffies;
1104	unsigned long scan_start;
1105	unsigned long scan_pass_start;
1106	unsigned long scan_start_tsf;
1107	void *scan;
1108	int scan_bands;
1109	struct cfg80211_scan_request *scan_request;
1110	bool is_internal_short_scan;
1111	u8 scan_tx_ant[IEEE80211_NUM_BANDS];
1112	u8 mgmt_tx_ant;
1113
1114	/* spinlock */
1115	spinlock_t lock;	/* protect general shared data */
1116	spinlock_t hcmd_lock;	/* protect hcmd */
1117	spinlock_t reg_lock;	/* protect hw register access */
1118	struct mutex mutex;
1119	struct mutex sync_cmd_mutex; /* enable serialization of sync commands */
1120
1121	/* basic pci-network driver stuff */
1122	struct pci_dev *pci_dev;
1123
1124	/* pci hardware address support */
1125	void __iomem *hw_base;
1126	u32  hw_rev;
1127	u32  hw_wa_rev;
1128	u8   rev_id;
1129
1130	/* uCode images, save to reload in case of failure */
1131	int fw_index;			/* firmware we're trying to load */
1132	u32 ucode_ver;			/* version of ucode, copy of
1133					   iwl_ucode.ver */
1134	struct fw_desc ucode_code;	/* runtime inst */
1135	struct fw_desc ucode_data;	/* runtime data original */
1136	struct fw_desc ucode_data_backup;	/* runtime data save/restore */
1137	struct fw_desc ucode_init;	/* initialization inst */
1138	struct fw_desc ucode_init_data;	/* initialization data */
1139	struct fw_desc ucode_boot;	/* bootstrap inst */
1140	enum ucode_type ucode_type;
1141	u8 ucode_write_complete;	/* the image write is complete */
1142	char firmware_name[25];
1143
1144
1145	struct iwl_rxon_time_cmd rxon_timing;
1146
1147	/* We declare this const so it can only be
1148	 * changed via explicit cast within the
1149	 * routines that actually update the physical
1150	 * hardware */
1151	const struct iwl_rxon_cmd active_rxon;
1152	struct iwl_rxon_cmd staging_rxon;
1153
1154	struct iwl_switch_rxon switch_rxon;
1155
1156	/* 1st responses from initialize and runtime uCode images.
1157	 * 4965's initialize alive response contains some calibration data. */
1158	struct iwl_init_alive_resp card_alive_init;
1159	struct iwl_alive_resp card_alive;
1160
1161	unsigned long last_blink_time;
1162	u8 last_blink_rate;
1163	u8 allow_blinking;
1164	u64 led_tpt;
1165
1166	u16 active_rate;
1167
1168	u8 assoc_station_added;
1169	u8 start_calib;
1170	struct iwl_sensitivity_data sensitivity_data;
1171	struct iwl_chain_noise_data chain_noise_data;
1172	__le16 sensitivity_tbl[HD_TABLE_SIZE];
1173
1174	struct iwl_ht_config current_ht_config;
1175	u8 last_phy_res[100];
1176
1177	/* Rate scaling data */
1178	u8 retry_rate;
1179
1180	wait_queue_head_t wait_command_queue;
1181
1182	int activity_timer_active;
1183
1184	/* Rx and Tx DMA processing queues */
1185	struct iwl_rx_queue rxq;
1186	struct iwl_tx_queue *txq;
1187	unsigned long txq_ctx_active_msk;
1188	struct iwl_dma_ptr  kw;	/* keep warm address */
1189	struct iwl_dma_ptr  scd_bc_tbls;
1190
1191	u32 scd_base_addr;	/* scheduler sram base address */
1192
1193	unsigned long status;
1194
1195	int last_rx_noise;	/* From beacon statistics */
1196
1197	/* counts mgmt, ctl, and data packets */
1198	struct traffic_stats tx_stats;
1199	struct traffic_stats rx_stats;
1200
1201	/* counts interrupts */
1202	struct isr_statistics isr_stats;
1203
1204	struct iwl_power_mgr power_data;
1205	struct iwl_tt_mgmt thermal_throttle;
1206
1207	struct iwl_notif_statistics statistics;
1208#ifdef CONFIG_IWLWIFI_DEBUG
1209	struct iwl_notif_statistics accum_statistics;
1210	struct iwl_notif_statistics delta_statistics;
1211	struct iwl_notif_statistics max_delta;
1212#endif
1213
1214	/* context information */
1215	u8 bssid[ETH_ALEN];
1216	u16 rts_threshold;
1217	u8 mac_addr[ETH_ALEN];
1218
1219	/*station table variables */
1220	spinlock_t sta_lock;
1221	int num_stations;
1222	struct iwl_station_entry stations[IWL_STATION_COUNT];
1223	struct iwl_wep_key wep_keys[WEP_KEYS_MAX]; /* protected by mutex */
1224	u8 default_wep_key;
1225	u8 key_mapping_key;
1226	unsigned long ucode_key_table;
1227
1228	/* queue refcounts */
1229#define IWL_MAX_HW_QUEUES	32
1230	unsigned long queue_stopped[BITS_TO_LONGS(IWL_MAX_HW_QUEUES)];
1231	/* for each AC */
1232	atomic_t queue_stop_count[4];
1233
1234	/* Indication if ieee80211_ops->open has been called */
1235	u8 is_open;
1236
1237	u8 mac80211_registered;
1238
1239	/* eeprom -- this is in the card's little endian byte order */
1240	u8 *eeprom;
1241	int    nvm_device_type;
1242	struct iwl_eeprom_calib_info *calib_info;
1243
1244	enum nl80211_iftype iw_mode;
1245
1246	struct sk_buff *ibss_beacon;
1247
1248	/* Last Rx'd beacon timestamp */
1249	u64 timestamp;
1250	u16 beacon_int;
1251	struct ieee80211_vif *vif;
1252
1253	union {
1254#if defined(CONFIG_IWL3945) || defined(CONFIG_IWL3945_MODULE)
1255		struct {
1256			void *shared_virt;
1257			dma_addr_t shared_phys;
1258
1259			struct delayed_work thermal_periodic;
1260			struct delayed_work rfkill_poll;
1261
1262			struct iwl3945_notif_statistics statistics;
1263
1264			u32 sta_supp_rates;
1265			int last_rx_rssi;	/* From Rx packet statistics */
1266
1267			/* Rx'd packet timing information */
1268			u32 last_beacon_time;
1269			u64 last_tsf;
1270
1271			/*
1272			 * each calibration channel group in the
1273			 * EEPROM has a derived clip setting for
1274			 * each rate.
1275			 */
1276			const struct iwl3945_clip_group clip_groups[5];
1277
1278		} _3945;
1279#endif
1280#if defined(CONFIG_IWLAGN) || defined(CONFIG_IWLAGN_MODULE)
1281		struct {
1282			/* INT ICT Table */
1283			__le32 *ict_tbl;
1284			void *ict_tbl_vir;
1285			dma_addr_t ict_tbl_dma;
1286			dma_addr_t aligned_ict_tbl_dma;
1287			int ict_index;
1288			u32 inta;
1289			bool use_ict;
1290		} _agn;
1291#endif
1292	};
1293
1294	struct iwl_hw_params hw_params;
1295
1296	u32 inta_mask;
1297	/* Current association information needed to configure the
1298	 * hardware */
1299	u16 assoc_id;
1300	u16 assoc_capability;
1301
1302	struct iwl_qos_info qos_data;
1303
1304	struct workqueue_struct *workqueue;
1305
1306	struct work_struct restart;
1307	struct work_struct scan_completed;
1308	struct work_struct rx_replenish;
1309	struct work_struct abort_scan;
1310	struct work_struct request_scan;
1311	struct work_struct beacon_update;
1312	struct work_struct tt_work;
1313	struct work_struct ct_enter;
1314	struct work_struct ct_exit;
1315
1316	struct tasklet_struct irq_tasklet;
1317
1318	struct delayed_work init_alive_start;
1319	struct delayed_work alive_start;
1320	struct delayed_work scan_check;
1321
1322	/* TX Power */
1323	s8 tx_power_user_lmt;
1324	s8 tx_power_device_lmt;
1325	s8 tx_power_lmt_in_half_dbm; /* max tx power in half-dBm format */
1326
1327
1328#ifdef CONFIG_IWLWIFI_DEBUG
1329	/* debugging info */
1330	u32 debug_level; /* per device debugging will override global
1331			    iwl_debug_level if set */
1332	u32 framecnt_to_us;
1333	atomic_t restrict_refcnt;
1334	bool disable_ht40;
1335#ifdef CONFIG_IWLWIFI_DEBUGFS
1336	/* debugfs */
1337	u16 tx_traffic_idx;
1338	u16 rx_traffic_idx;
1339	u8 *tx_traffic;
1340	u8 *rx_traffic;
1341	struct dentry *debugfs_dir;
1342	u32 dbgfs_sram_offset, dbgfs_sram_len;
1343#endif /* CONFIG_IWLWIFI_DEBUGFS */
1344#endif /* CONFIG_IWLWIFI_DEBUG */
1345
1346	struct work_struct txpower_work;
1347	u32 disable_sens_cal;
1348	u32 disable_chain_noise_cal;
1349	u32 disable_tx_power_cal;
1350	struct work_struct run_time_calib_work;
1351	struct timer_list statistics_periodic;
1352	struct timer_list ucode_trace;
1353	bool hw_ready;
1354
1355	struct iwl_event_log event_log;
1356}; /*iwl_priv */
1357
1358static inline void iwl_txq_ctx_activate(struct iwl_priv *priv, int txq_id)
1359{
1360	set_bit(txq_id, &priv->txq_ctx_active_msk);
1361}
1362
1363static inline void iwl_txq_ctx_deactivate(struct iwl_priv *priv, int txq_id)
1364{
1365	clear_bit(txq_id, &priv->txq_ctx_active_msk);
1366}
1367
1368#ifdef CONFIG_IWLWIFI_DEBUG
1369const char *iwl_get_tx_fail_reason(u32 status);
1370/*
1371 * iwl_get_debug_level: Return active debug level for device
1372 *
1373 * Using sysfs it is possible to set per device debug level. This debug
1374 * level will be used if set, otherwise the global debug level which can be
1375 * set via module parameter is used.
1376 */
1377static inline u32 iwl_get_debug_level(struct iwl_priv *priv)
1378{
1379	if (priv->debug_level)
1380		return priv->debug_level;
1381	else
1382		return iwl_debug_level;
1383}
1384#else
1385static inline const char *iwl_get_tx_fail_reason(u32 status) { return ""; }
1386
1387static inline u32 iwl_get_debug_level(struct iwl_priv *priv)
1388{
1389	return iwl_debug_level;
1390}
1391#endif
1392
1393
1394static inline struct ieee80211_hdr *iwl_tx_queue_get_hdr(struct iwl_priv *priv,
1395							 int txq_id, int idx)
1396{
1397	if (priv->txq[txq_id].txb[idx].skb[0])
1398		return (struct ieee80211_hdr *)priv->txq[txq_id].
1399				txb[idx].skb[0]->data;
1400	return NULL;
1401}
1402
1403
1404static inline int iwl_is_associated(struct iwl_priv *priv)
1405{
1406	return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
1407}
1408
1409static inline int is_channel_valid(const struct iwl_channel_info *ch_info)
1410{
1411	if (ch_info == NULL)
1412		return 0;
1413	return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
1414}
1415
1416static inline int is_channel_radar(const struct iwl_channel_info *ch_info)
1417{
1418	return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
1419}
1420
1421static inline u8 is_channel_a_band(const struct iwl_channel_info *ch_info)
1422{
1423	return ch_info->band == IEEE80211_BAND_5GHZ;
1424}
1425
1426static inline u8 is_channel_bg_band(const struct iwl_channel_info *ch_info)
1427{
1428	return ch_info->band == IEEE80211_BAND_2GHZ;
1429}
1430
1431static inline int is_channel_passive(const struct iwl_channel_info *ch)
1432{
1433	return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
1434}
1435
1436static inline int is_channel_ibss(const struct iwl_channel_info *ch)
1437{
1438	return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
1439}
1440
1441static inline void __iwl_free_pages(struct iwl_priv *priv, struct page *page)
1442{
1443	__free_pages(page, priv->hw_params.rx_page_order);
1444	priv->alloc_rxb_page--;
1445}
1446
1447static inline void iwl_free_pages(struct iwl_priv *priv, unsigned long page)
1448{
1449	free_pages(page, priv->hw_params.rx_page_order);
1450	priv->alloc_rxb_page--;
1451}
1452#endif				/* __iwl_dev_h__ */
1453