iwl-dev.h revision 0b5af201b25334f7b9c991b2800693dd4cb4b5f7 
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_g2_2agn_cfg;
61extern struct iwl_cfg iwl6000i_2abg_cfg;
62extern struct iwl_cfg iwl6000i_2bg_cfg;
63extern struct iwl_cfg iwl6000_3agn_cfg;
64extern struct iwl_cfg iwl6050_2agn_cfg;
65extern struct iwl_cfg iwl6050_2abg_cfg;
66extern struct iwl_cfg iwl1000_bgn_cfg;
67extern struct iwl_cfg iwl1000_bg_cfg;
68
69struct iwl_tx_queue;
70
71/* shared structures from iwl-5000.c */
72extern struct iwl_mod_params iwl50_mod_params;
73extern struct iwl_ucode_ops iwl5000_ucode;
74extern struct iwl_lib_ops iwl5000_lib;
75extern struct iwl_hcmd_ops iwl5000_hcmd;
76extern struct iwl_hcmd_utils_ops iwl5000_hcmd_utils;
77
78/* shared functions from iwl-5000.c */
79extern u16 iwl5000_get_hcmd_size(u8 cmd_id, u16 len);
80extern u16 iwl5000_build_addsta_hcmd(const struct iwl_addsta_cmd *cmd,
81				     u8 *data);
82extern void iwl5000_rts_tx_cmd_flag(struct ieee80211_tx_info *info,
83				    __le32 *tx_flags);
84extern int iwl5000_calc_rssi(struct iwl_priv *priv,
85			     struct iwl_rx_phy_res *rx_resp);
86extern void iwl5000_nic_config(struct iwl_priv *priv);
87extern u16 iwl5000_eeprom_calib_version(struct iwl_priv *priv);
88extern const u8 *iwl5000_eeprom_query_addr(const struct iwl_priv *priv,
89				    size_t offset);
90extern void iwl5000_txq_update_byte_cnt_tbl(struct iwl_priv *priv,
91					    struct iwl_tx_queue *txq,
92					    u16 byte_cnt);
93extern void iwl5000_txq_inval_byte_cnt_tbl(struct iwl_priv *priv,
94				    struct iwl_tx_queue *txq);
95extern int iwl5000_load_ucode(struct iwl_priv *priv);
96extern void iwl5000_init_alive_start(struct iwl_priv *priv);
97extern int iwl5000_alive_notify(struct iwl_priv *priv);
98extern int iwl5000_hw_set_hw_params(struct iwl_priv *priv);
99extern int iwl5000_txq_agg_enable(struct iwl_priv *priv, int txq_id,
100			   int tx_fifo, int sta_id, int tid, u16 ssn_idx);
101extern int iwl5000_txq_agg_disable(struct iwl_priv *priv, u16 txq_id,
102			    u16 ssn_idx, u8 tx_fifo);
103extern void iwl5000_txq_set_sched(struct iwl_priv *priv, u32 mask);
104extern void iwl5000_setup_deferred_work(struct iwl_priv *priv);
105extern void iwl5000_rx_handler_setup(struct iwl_priv *priv);
106extern int iwl5000_hw_valid_rtc_data_addr(u32 addr);
107extern int iwl5000_send_tx_power(struct iwl_priv *priv);
108extern void iwl5000_temperature(struct iwl_priv *priv);
109
110/* CT-KILL constants */
111#define CT_KILL_THRESHOLD_LEGACY   110 /* in Celsius */
112#define CT_KILL_THRESHOLD	   114 /* in Celsius */
113#define CT_KILL_EXIT_THRESHOLD     95  /* in Celsius */
114
115/* Default noise level to report when noise measurement is not available.
116 *   This may be because we're:
117 *   1)  Not associated (4965, no beacon statistics being sent to driver)
118 *   2)  Scanning (noise measurement does not apply to associated channel)
119 *   3)  Receiving CCK (3945 delivers noise info only for OFDM frames)
120 * Use default noise value of -127 ... this is below the range of measurable
121 *   Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
122 *   Also, -127 works better than 0 when averaging frames with/without
123 *   noise info (e.g. averaging might be done in app); measured dBm values are
124 *   always negative ... using a negative value as the default keeps all
125 *   averages within an s8's (used in some apps) range of negative values. */
126#define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
127
128/*
129 * RTS threshold here is total size [2347] minus 4 FCS bytes
130 * Per spec:
131 *   a value of 0 means RTS on all data/management packets
132 *   a value > max MSDU size means no RTS
133 * else RTS for data/management frames where MPDU is larger
134 *   than RTS value.
135 */
136#define DEFAULT_RTS_THRESHOLD     2347U
137#define MIN_RTS_THRESHOLD         0U
138#define MAX_RTS_THRESHOLD         2347U
139#define MAX_MSDU_SIZE		  2304U
140#define MAX_MPDU_SIZE		  2346U
141#define DEFAULT_BEACON_INTERVAL   100U
142#define	DEFAULT_SHORT_RETRY_LIMIT 7U
143#define	DEFAULT_LONG_RETRY_LIMIT  4U
144
145struct iwl_rx_mem_buffer {
146	dma_addr_t page_dma;
147	struct page *page;
148	struct list_head list;
149};
150
151#define rxb_addr(r) page_address(r->page)
152
153/* defined below */
154struct iwl_device_cmd;
155
156struct iwl_cmd_meta {
157	/* only for SYNC commands, iff the reply skb is wanted */
158	struct iwl_host_cmd *source;
159	/*
160	 * only for ASYNC commands
161	 * (which is somewhat stupid -- look at iwl-sta.c for instance
162	 * which duplicates a bunch of code because the callback isn't
163	 * invoked for SYNC commands, if it were and its result passed
164	 * through it would be simpler...)
165	 */
166	void (*callback)(struct iwl_priv *priv,
167			 struct iwl_device_cmd *cmd,
168			 struct iwl_rx_packet *pkt);
169
170	/* The CMD_SIZE_HUGE flag bit indicates that the command
171	 * structure is stored at the end of the shared queue memory. */
172	u32 flags;
173
174	DECLARE_PCI_UNMAP_ADDR(mapping)
175	DECLARE_PCI_UNMAP_LEN(len)
176};
177
178/*
179 * Generic queue structure
180 *
181 * Contains common data for Rx and Tx queues
182 */
183struct iwl_queue {
184	int n_bd;              /* number of BDs in this queue */
185	int write_ptr;       /* 1-st empty entry (index) host_w*/
186	int read_ptr;         /* last used entry (index) host_r*/
187	/* use for monitoring and recovering the stuck queue */
188	int last_read_ptr;      /* storing the last read_ptr */
189	/* number of time read_ptr and last_read_ptr are the same */
190	u8 repeat_same_read_ptr;
191	dma_addr_t dma_addr;   /* physical addr for BD's */
192	int n_window;	       /* safe queue window */
193	u32 id;
194	int low_mark;	       /* low watermark, resume queue if free
195				* space more than this */
196	int high_mark;         /* high watermark, stop queue if free
197				* space less than this */
198} __attribute__ ((packed));
199
200/* One for each TFD */
201struct iwl_tx_info {
202	struct sk_buff *skb[IWL_NUM_OF_TBS - 1];
203};
204
205/**
206 * struct iwl_tx_queue - Tx Queue for DMA
207 * @q: generic Rx/Tx queue descriptor
208 * @bd: base of circular buffer of TFDs
209 * @cmd: array of command/TX buffer pointers
210 * @meta: array of meta data for each command/tx buffer
211 * @dma_addr_cmd: physical address of cmd/tx buffer array
212 * @txb: array of per-TFD driver data
213 * @need_update: indicates need to update read/write index
214 * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
215 *
216 * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
217 * descriptors) and required locking structures.
218 */
219#define TFD_TX_CMD_SLOTS 256
220#define TFD_CMD_SLOTS 32
221
222struct iwl_tx_queue {
223	struct iwl_queue q;
224	void *tfds;
225	struct iwl_device_cmd **cmd;
226	struct iwl_cmd_meta *meta;
227	struct iwl_tx_info *txb;
228	u8 need_update;
229	u8 sched_retry;
230	u8 active;
231	u8 swq_id;
232};
233
234#define IWL_NUM_SCAN_RATES         (2)
235
236struct iwl4965_channel_tgd_info {
237	u8 type;
238	s8 max_power;
239};
240
241struct iwl4965_channel_tgh_info {
242	s64 last_radar_time;
243};
244
245#define IWL4965_MAX_RATE (33)
246
247struct iwl3945_clip_group {
248	/* maximum power level to prevent clipping for each rate, derived by
249	 *   us from this band's saturation power in EEPROM */
250	const s8 clip_powers[IWL_MAX_RATES];
251};
252
253/* current Tx power values to use, one for each rate for each channel.
254 * requested power is limited by:
255 * -- regulatory EEPROM limits for this channel
256 * -- hardware capabilities (clip-powers)
257 * -- spectrum management
258 * -- user preference (e.g. iwconfig)
259 * when requested power is set, base power index must also be set. */
260struct iwl3945_channel_power_info {
261	struct iwl3945_tx_power tpc;	/* actual radio and DSP gain settings */
262	s8 power_table_index;	/* actual (compenst'd) index into gain table */
263	s8 base_power_index;	/* gain index for power at factory temp. */
264	s8 requested_power;	/* power (dBm) requested for this chnl/rate */
265};
266
267/* current scan Tx power values to use, one for each scan rate for each
268 * channel. */
269struct iwl3945_scan_power_info {
270	struct iwl3945_tx_power tpc;	/* actual radio and DSP gain settings */
271	s8 power_table_index;	/* actual (compenst'd) index into gain table */
272	s8 requested_power;	/* scan pwr (dBm) requested for chnl/rate */
273};
274
275/*
276 * One for each channel, holds all channel setup data
277 * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
278 *     with one another!
279 */
280struct iwl_channel_info {
281	struct iwl4965_channel_tgd_info tgd;
282	struct iwl4965_channel_tgh_info tgh;
283	struct iwl_eeprom_channel eeprom;	/* EEPROM regulatory limit */
284	struct iwl_eeprom_channel ht40_eeprom;	/* EEPROM regulatory limit for
285						 * HT40 channel */
286
287	u8 channel;	  /* channel number */
288	u8 flags;	  /* flags copied from EEPROM */
289	s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
290	s8 curr_txpow;	  /* (dBm) regulatory/spectrum/user (not h/w) limit */
291	s8 min_power;	  /* always 0 */
292	s8 scan_power;	  /* (dBm) regul. eeprom, direct scans, any rate */
293
294	u8 group_index;	  /* 0-4, maps channel to group1/2/3/4/5 */
295	u8 band_index;	  /* 0-4, maps channel to band1/2/3/4/5 */
296	enum ieee80211_band band;
297
298	/* HT40 channel info */
299	s8 ht40_max_power_avg;	/* (dBm) regul. eeprom, normal Tx, any rate */
300	u8 ht40_flags;		/* flags copied from EEPROM */
301	u8 ht40_extension_channel; /* HT_IE_EXT_CHANNEL_* */
302
303	/* Radio/DSP gain settings for each "normal" data Tx rate.
304	 * These include, in addition to RF and DSP gain, a few fields for
305	 *   remembering/modifying gain settings (indexes). */
306	struct iwl3945_channel_power_info power_info[IWL4965_MAX_RATE];
307
308	/* Radio/DSP gain settings for each scan rate, for directed scans. */
309	struct iwl3945_scan_power_info scan_pwr_info[IWL_NUM_SCAN_RATES];
310};
311
312#define IWL_TX_FIFO_BK		0
313#define IWL_TX_FIFO_BE		1
314#define IWL_TX_FIFO_VI		2
315#define IWL_TX_FIFO_VO		3
316#define IWL_TX_FIFO_UNUSED	-1
317
318/* Minimum number of queues. MAX_NUM is defined in hw specific files.
319 * Set the minimum to accommodate the 4 standard TX queues, 1 command
320 * queue, 2 (unused) HCCA queues, and 4 HT queues (one for each AC) */
321#define IWL_MIN_NUM_QUEUES	10
322
323/*
324 * Queue #4 is the command queue for 3945/4965/5x00/1000/6x00,
325 * the driver maps it into the appropriate device FIFO for the
326 * uCode.
327 */
328#define IWL_CMD_QUEUE_NUM	4
329
330/* Power management (not Tx power) structures */
331
332enum iwl_pwr_src {
333	IWL_PWR_SRC_VMAIN,
334	IWL_PWR_SRC_VAUX,
335};
336
337#define IEEE80211_DATA_LEN              2304
338#define IEEE80211_4ADDR_LEN             30
339#define IEEE80211_HLEN                  (IEEE80211_4ADDR_LEN)
340#define IEEE80211_FRAME_LEN             (IEEE80211_DATA_LEN + IEEE80211_HLEN)
341
342struct iwl_frame {
343	union {
344		struct ieee80211_hdr frame;
345		struct iwl_tx_beacon_cmd beacon;
346		u8 raw[IEEE80211_FRAME_LEN];
347		u8 cmd[360];
348	} u;
349	struct list_head list;
350};
351
352#define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
353#define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
354#define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
355
356enum {
357	CMD_SYNC = 0,
358	CMD_SIZE_NORMAL = 0,
359	CMD_NO_SKB = 0,
360	CMD_SIZE_HUGE = (1 << 0),
361	CMD_ASYNC = (1 << 1),
362	CMD_WANT_SKB = (1 << 2),
363};
364
365#define DEF_CMD_PAYLOAD_SIZE 320
366
367/*
368 * IWL_LINK_HDR_MAX should include ieee80211_hdr, radiotap header,
369 * SNAP header and alignment. It should also be big enough for 802.11
370 * control frames.
371 */
372#define IWL_LINK_HDR_MAX 64
373
374/**
375 * struct iwl_device_cmd
376 *
377 * For allocation of the command and tx queues, this establishes the overall
378 * size of the largest command we send to uCode, except for a scan command
379 * (which is relatively huge; space is allocated separately).
380 */
381struct iwl_device_cmd {
382	struct iwl_cmd_header hdr;	/* uCode API */
383	union {
384		u32 flags;
385		u8 val8;
386		u16 val16;
387		u32 val32;
388		struct iwl_tx_cmd tx;
389		struct iwl6000_channel_switch_cmd chswitch;
390		u8 payload[DEF_CMD_PAYLOAD_SIZE];
391	} __attribute__ ((packed)) cmd;
392} __attribute__ ((packed));
393
394#define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_device_cmd))
395
396
397struct iwl_host_cmd {
398	const void *data;
399	unsigned long reply_page;
400	void (*callback)(struct iwl_priv *priv,
401			 struct iwl_device_cmd *cmd,
402			 struct iwl_rx_packet *pkt);
403	u32 flags;
404	u16 len;
405	u8 id;
406};
407
408#define SUP_RATE_11A_MAX_NUM_CHANNELS  8
409#define SUP_RATE_11B_MAX_NUM_CHANNELS  4
410#define SUP_RATE_11G_MAX_NUM_CHANNELS  12
411
412/**
413 * struct iwl_rx_queue - Rx queue
414 * @bd: driver's pointer to buffer of receive buffer descriptors (rbd)
415 * @dma_addr: bus address of buffer of receive buffer descriptors (rbd)
416 * @read: Shared index to newest available Rx buffer
417 * @write: Shared index to oldest written Rx packet
418 * @free_count: Number of pre-allocated buffers in rx_free
419 * @rx_free: list of free SKBs for use
420 * @rx_used: List of Rx buffers with no SKB
421 * @need_update: flag to indicate we need to update read/write index
422 * @rb_stts: driver's pointer to receive buffer status
423 * @rb_stts_dma: bus address of receive buffer status
424 *
425 * NOTE:  rx_free and rx_used are used as a FIFO for iwl_rx_mem_buffers
426 */
427struct iwl_rx_queue {
428	__le32 *bd;
429	dma_addr_t dma_addr;
430	struct iwl_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
431	struct iwl_rx_mem_buffer *queue[RX_QUEUE_SIZE];
432	u32 read;
433	u32 write;
434	u32 free_count;
435	u32 write_actual;
436	struct list_head rx_free;
437	struct list_head rx_used;
438	int need_update;
439	struct iwl_rb_status *rb_stts;
440	dma_addr_t rb_stts_dma;
441	spinlock_t lock;
442};
443
444#define IWL_SUPPORTED_RATES_IE_LEN         8
445
446#define MAX_TID_COUNT        9
447
448#define IWL_INVALID_RATE     0xFF
449#define IWL_INVALID_VALUE    -1
450
451/**
452 * struct iwl_ht_agg -- aggregation status while waiting for block-ack
453 * @txq_id: Tx queue used for Tx attempt
454 * @frame_count: # frames attempted by Tx command
455 * @wait_for_ba: Expect block-ack before next Tx reply
456 * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window
457 * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window
458 * @bitmap1: High order, one bit for each frame pending ACK in Tx window
459 * @rate_n_flags: Rate at which Tx was attempted
460 *
461 * If REPLY_TX indicates that aggregation was attempted, driver must wait
462 * for block ack (REPLY_COMPRESSED_BA).  This struct stores tx reply info
463 * until block ack arrives.
464 */
465struct iwl_ht_agg {
466	u16 txq_id;
467	u16 frame_count;
468	u16 wait_for_ba;
469	u16 start_idx;
470	u64 bitmap;
471	u32 rate_n_flags;
472#define IWL_AGG_OFF 0
473#define IWL_AGG_ON 1
474#define IWL_EMPTYING_HW_QUEUE_ADDBA 2
475#define IWL_EMPTYING_HW_QUEUE_DELBA 3
476	u8 state;
477};
478
479
480struct iwl_tid_data {
481	u16 seq_number;
482	u16 tfds_in_queue;
483	struct iwl_ht_agg agg;
484};
485
486struct iwl_hw_key {
487	enum ieee80211_key_alg alg;
488	int keylen;
489	u8 keyidx;
490	u8 key[32];
491};
492
493union iwl_ht_rate_supp {
494	u16 rates;
495	struct {
496		u8 siso_rate;
497		u8 mimo_rate;
498	};
499};
500
501#define CFG_HT_RX_AMPDU_FACTOR_DEF  (0x3)
502
503/*
504 * Maximal MPDU density for TX aggregation
505 * 4 - 2us density
506 * 5 - 4us density
507 * 6 - 8us density
508 * 7 - 16us density
509 */
510#define CFG_HT_MPDU_DENSITY_4USEC   (0x5)
511#define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_4USEC
512
513struct iwl_ht_config {
514	/* self configuration data */
515	bool is_ht;
516	bool is_40mhz;
517	bool single_chain_sufficient;
518	enum ieee80211_smps_mode smps; /* current smps mode */
519	/* BSS related data */
520	u8 extension_chan_offset;
521	u8 ht_protection;
522	u8 non_GF_STA_present;
523};
524
525union iwl_qos_capabity {
526	struct {
527		u8 edca_count:4;	/* bit 0-3 */
528		u8 q_ack:1;		/* bit 4 */
529		u8 queue_request:1;	/* bit 5 */
530		u8 txop_request:1;	/* bit 6 */
531		u8 reserved:1;		/* bit 7 */
532	} q_AP;
533	struct {
534		u8 acvo_APSD:1;		/* bit 0 */
535		u8 acvi_APSD:1;		/* bit 1 */
536		u8 ac_bk_APSD:1;	/* bit 2 */
537		u8 ac_be_APSD:1;	/* bit 3 */
538		u8 q_ack:1;		/* bit 4 */
539		u8 max_len:2;		/* bit 5-6 */
540		u8 more_data_ack:1;	/* bit 7 */
541	} q_STA;
542	u8 val;
543};
544
545/* QoS structures */
546struct iwl_qos_info {
547	int qos_active;
548	union iwl_qos_capabity qos_cap;
549	struct iwl_qosparam_cmd def_qos_parm;
550};
551
552/*
553 * Structure should be accessed with sta_lock held. When station addition
554 * is in progress (IWL_STA_UCODE_INPROGRESS) it is possible to access only
555 * the commands (iwl_addsta_cmd and iwl_link_quality_cmd) without sta_lock
556 * held.
557 */
558struct iwl_station_entry {
559	struct iwl_addsta_cmd sta;
560	struct iwl_tid_data tid[MAX_TID_COUNT];
561	u8 used;
562	struct iwl_hw_key keyinfo;
563	struct iwl_link_quality_cmd *lq;
564};
565
566/*
567 * iwl_station_priv: Driver's private station information
568 *
569 * When mac80211 creates a station it reserves some space (hw->sta_data_size)
570 * in the structure for use by driver. This structure is places in that
571 * space.
572 */
573struct iwl_station_priv {
574	struct iwl_lq_sta lq_sta;
575	atomic_t pending_frames;
576	bool client;
577	bool asleep;
578};
579
580/* one for each uCode image (inst/data, boot/init/runtime) */
581struct fw_desc {
582	void *v_addr;		/* access by driver */
583	dma_addr_t p_addr;	/* access by card's busmaster DMA */
584	u32 len;		/* bytes */
585};
586
587/* uCode file layout */
588struct iwl_ucode_header {
589	__le32 ver;	/* major/minor/API/serial */
590	union {
591		struct {
592			__le32 inst_size;	/* bytes of runtime code */
593			__le32 data_size;	/* bytes of runtime data */
594			__le32 init_size;	/* bytes of init code */
595			__le32 init_data_size;	/* bytes of init data */
596			__le32 boot_size;	/* bytes of bootstrap code */
597			u8 data[0];		/* in same order as sizes */
598		} v1;
599		struct {
600			__le32 build;		/* build number */
601			__le32 inst_size;	/* bytes of runtime code */
602			__le32 data_size;	/* bytes of runtime data */
603			__le32 init_size;	/* bytes of init code */
604			__le32 init_data_size;	/* bytes of init data */
605			__le32 boot_size;	/* bytes of bootstrap code */
606			u8 data[0];		/* in same order as sizes */
607		} v2;
608	} u;
609};
610#define UCODE_HEADER_SIZE(ver) ((ver) == 1 ? 24 : 28)
611
612struct iwl4965_ibss_seq {
613	u8 mac[ETH_ALEN];
614	u16 seq_num;
615	u16 frag_num;
616	unsigned long packet_time;
617	struct list_head list;
618};
619
620struct iwl_sensitivity_ranges {
621	u16 min_nrg_cck;
622	u16 max_nrg_cck;
623
624	u16 nrg_th_cck;
625	u16 nrg_th_ofdm;
626
627	u16 auto_corr_min_ofdm;
628	u16 auto_corr_min_ofdm_mrc;
629	u16 auto_corr_min_ofdm_x1;
630	u16 auto_corr_min_ofdm_mrc_x1;
631
632	u16 auto_corr_max_ofdm;
633	u16 auto_corr_max_ofdm_mrc;
634	u16 auto_corr_max_ofdm_x1;
635	u16 auto_corr_max_ofdm_mrc_x1;
636
637	u16 auto_corr_max_cck;
638	u16 auto_corr_max_cck_mrc;
639	u16 auto_corr_min_cck;
640	u16 auto_corr_min_cck_mrc;
641
642	u16 barker_corr_th_min;
643	u16 barker_corr_th_min_mrc;
644	u16 nrg_th_cca;
645};
646
647
648#define KELVIN_TO_CELSIUS(x) ((x)-273)
649#define CELSIUS_TO_KELVIN(x) ((x)+273)
650
651
652/**
653 * struct iwl_hw_params
654 * @max_txq_num: Max # Tx queues supported
655 * @dma_chnl_num: Number of Tx DMA/FIFO channels
656 * @scd_bc_tbls_size: size of scheduler byte count tables
657 * @tfd_size: TFD size
658 * @tx/rx_chains_num: Number of TX/RX chains
659 * @valid_tx/rx_ant: usable antennas
660 * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
661 * @max_rxq_log: Log-base-2 of max_rxq_size
662 * @rx_page_order: Rx buffer page order
663 * @rx_wrt_ptr_reg: FH{39}_RSCSR_CHNL0_WPTR
664 * @max_stations:
665 * @bcast_sta_id:
666 * @ht40_channel: is 40MHz width possible in band 2.4
667 * BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ)
668 * @sw_crypto: 0 for hw, 1 for sw
669 * @max_xxx_size: for ucode uses
670 * @ct_kill_threshold: temperature threshold
671 * @calib_init_cfg: setup initial calibrations for the hw
672 * @struct iwl_sensitivity_ranges: range of sensitivity values
673 */
674struct iwl_hw_params {
675	u8 max_txq_num;
676	u8 dma_chnl_num;
677	u16 scd_bc_tbls_size;
678	u32 tfd_size;
679	u8  tx_chains_num;
680	u8  rx_chains_num;
681	u8  valid_tx_ant;
682	u8  valid_rx_ant;
683	u16 max_rxq_size;
684	u16 max_rxq_log;
685	u32 rx_page_order;
686	u32 rx_wrt_ptr_reg;
687	u8  max_stations;
688	u8  bcast_sta_id;
689	u8  ht40_channel;
690	u8  max_beacon_itrvl;	/* in 1024 ms */
691	u32 max_inst_size;
692	u32 max_data_size;
693	u32 max_bsm_size;
694	u32 ct_kill_threshold; /* value in hw-dependent units */
695	u32 ct_kill_exit_threshold; /* value in hw-dependent units */
696				    /* for 1000, 6000 series and up */
697	u32 calib_init_cfg;
698	const struct iwl_sensitivity_ranges *sens;
699};
700
701
702/******************************************************************************
703 *
704 * Functions implemented in core module which are forward declared here
705 * for use by iwl-[4-5].c
706 *
707 * NOTE:  The implementation of these functions are not hardware specific
708 * which is why they are in the core module files.
709 *
710 * Naming convention --
711 * iwl_         <-- Is part of iwlwifi
712 * iwlXXXX_     <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
713 * iwl4965_bg_      <-- Called from work queue context
714 * iwl4965_mac_     <-- mac80211 callback
715 *
716 ****************************************************************************/
717extern void iwl_update_chain_flags(struct iwl_priv *priv);
718extern int iwl_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src);
719extern const u8 iwl_bcast_addr[ETH_ALEN];
720extern int iwl_rxq_stop(struct iwl_priv *priv);
721extern void iwl_txq_ctx_stop(struct iwl_priv *priv);
722extern int iwl_queue_space(const struct iwl_queue *q);
723static inline int iwl_queue_used(const struct iwl_queue *q, int i)
724{
725	return q->write_ptr >= q->read_ptr ?
726		(i >= q->read_ptr && i < q->write_ptr) :
727		!(i < q->read_ptr && i >= q->write_ptr);
728}
729
730
731static inline u8 get_cmd_index(struct iwl_queue *q, u32 index, int is_huge)
732{
733	/*
734	 * This is for init calibration result and scan command which
735	 * required buffer > TFD_MAX_PAYLOAD_SIZE,
736	 * the big buffer at end of command array
737	 */
738	if (is_huge)
739		return q->n_window;	/* must be power of 2 */
740
741	/* Otherwise, use normal size buffers */
742	return index & (q->n_window - 1);
743}
744
745
746struct iwl_dma_ptr {
747	dma_addr_t dma;
748	void *addr;
749	size_t size;
750};
751
752#define IWL_OPERATION_MODE_AUTO     0
753#define IWL_OPERATION_MODE_HT_ONLY  1
754#define IWL_OPERATION_MODE_MIXED    2
755#define IWL_OPERATION_MODE_20MHZ    3
756
757#define IWL_TX_CRC_SIZE 4
758#define IWL_TX_DELIMITER_SIZE 4
759
760#define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
761
762/* Sensitivity and chain noise calibration */
763#define INITIALIZATION_VALUE		0xFFFF
764#define IWL4965_CAL_NUM_BEACONS		20
765#define IWL_CAL_NUM_BEACONS		16
766#define MAXIMUM_ALLOWED_PATHLOSS	15
767
768#define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
769
770#define MAX_FA_OFDM  50
771#define MIN_FA_OFDM  5
772#define MAX_FA_CCK   50
773#define MIN_FA_CCK   5
774
775#define AUTO_CORR_STEP_OFDM       1
776
777#define AUTO_CORR_STEP_CCK     3
778#define AUTO_CORR_MAX_TH_CCK   160
779
780#define NRG_DIFF               2
781#define NRG_STEP_CCK           2
782#define NRG_MARGIN             8
783#define MAX_NUMBER_CCK_NO_FA 100
784
785#define AUTO_CORR_CCK_MIN_VAL_DEF    (125)
786
787#define CHAIN_A             0
788#define CHAIN_B             1
789#define CHAIN_C             2
790#define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
791#define ALL_BAND_FILTER			0xFF00
792#define IN_BAND_FILTER			0xFF
793#define MIN_AVERAGE_NOISE_MAX_VALUE	0xFFFFFFFF
794
795#define NRG_NUM_PREV_STAT_L     20
796#define NUM_RX_CHAINS           3
797
798enum iwl4965_false_alarm_state {
799	IWL_FA_TOO_MANY = 0,
800	IWL_FA_TOO_FEW = 1,
801	IWL_FA_GOOD_RANGE = 2,
802};
803
804enum iwl4965_chain_noise_state {
805	IWL_CHAIN_NOISE_ALIVE = 0,  /* must be 0 */
806	IWL_CHAIN_NOISE_ACCUMULATE,
807	IWL_CHAIN_NOISE_CALIBRATED,
808	IWL_CHAIN_NOISE_DONE,
809};
810
811enum iwl4965_calib_enabled_state {
812	IWL_CALIB_DISABLED = 0,  /* must be 0 */
813	IWL_CALIB_ENABLED = 1,
814};
815
816
817/*
818 * enum iwl_calib
819 * defines the order in which results of initial calibrations
820 * should be sent to the runtime uCode
821 */
822enum iwl_calib {
823	IWL_CALIB_XTAL,
824	IWL_CALIB_DC,
825	IWL_CALIB_LO,
826	IWL_CALIB_TX_IQ,
827	IWL_CALIB_TX_IQ_PERD,
828	IWL_CALIB_BASE_BAND,
829	IWL_CALIB_MAX
830};
831
832/* Opaque calibration results */
833struct iwl_calib_result {
834	void *buf;
835	size_t buf_len;
836};
837
838enum ucode_type {
839	UCODE_NONE = 0,
840	UCODE_INIT,
841	UCODE_RT
842};
843
844/* Sensitivity calib data */
845struct iwl_sensitivity_data {
846	u32 auto_corr_ofdm;
847	u32 auto_corr_ofdm_mrc;
848	u32 auto_corr_ofdm_x1;
849	u32 auto_corr_ofdm_mrc_x1;
850	u32 auto_corr_cck;
851	u32 auto_corr_cck_mrc;
852
853	u32 last_bad_plcp_cnt_ofdm;
854	u32 last_fa_cnt_ofdm;
855	u32 last_bad_plcp_cnt_cck;
856	u32 last_fa_cnt_cck;
857
858	u32 nrg_curr_state;
859	u32 nrg_prev_state;
860	u32 nrg_value[10];
861	u8  nrg_silence_rssi[NRG_NUM_PREV_STAT_L];
862	u32 nrg_silence_ref;
863	u32 nrg_energy_idx;
864	u32 nrg_silence_idx;
865	u32 nrg_th_cck;
866	s32 nrg_auto_corr_silence_diff;
867	u32 num_in_cck_no_fa;
868	u32 nrg_th_ofdm;
869
870	u16 barker_corr_th_min;
871	u16 barker_corr_th_min_mrc;
872	u16 nrg_th_cca;
873};
874
875/* Chain noise (differential Rx gain) calib data */
876struct iwl_chain_noise_data {
877	u32 active_chains;
878	u32 chain_noise_a;
879	u32 chain_noise_b;
880	u32 chain_noise_c;
881	u32 chain_signal_a;
882	u32 chain_signal_b;
883	u32 chain_signal_c;
884	u16 beacon_count;
885	u8 disconn_array[NUM_RX_CHAINS];
886	u8 delta_gain_code[NUM_RX_CHAINS];
887	u8 radio_write;
888	u8 state;
889};
890
891#define	EEPROM_SEM_TIMEOUT 10		/* milliseconds */
892#define EEPROM_SEM_RETRY_LIMIT 1000	/* number of attempts (not time) */
893
894#define IWL_TRAFFIC_ENTRIES	(256)
895#define IWL_TRAFFIC_ENTRY_SIZE  (64)
896
897enum {
898	MEASUREMENT_READY = (1 << 0),
899	MEASUREMENT_ACTIVE = (1 << 1),
900};
901
902enum iwl_nvm_type {
903	NVM_DEVICE_TYPE_EEPROM = 0,
904	NVM_DEVICE_TYPE_OTP,
905};
906
907/*
908 * Two types of OTP memory access modes
909 *   IWL_OTP_ACCESS_ABSOLUTE - absolute address mode,
910 * 			        based on physical memory addressing
911 *   IWL_OTP_ACCESS_RELATIVE - relative address mode,
912 * 			       based on logical memory addressing
913 */
914enum iwl_access_mode {
915	IWL_OTP_ACCESS_ABSOLUTE,
916	IWL_OTP_ACCESS_RELATIVE,
917};
918
919/**
920 * enum iwl_pa_type - Power Amplifier type
921 * @IWL_PA_SYSTEM:  based on uCode configuration
922 * @IWL_PA_INTERNAL: use Internal only
923 */
924enum iwl_pa_type {
925	IWL_PA_SYSTEM = 0,
926	IWL_PA_INTERNAL = 1,
927};
928
929/* interrupt statistics */
930struct isr_statistics {
931	u32 hw;
932	u32 sw;
933	u32 sw_err;
934	u32 sch;
935	u32 alive;
936	u32 rfkill;
937	u32 ctkill;
938	u32 wakeup;
939	u32 rx;
940	u32 rx_handlers[REPLY_MAX];
941	u32 tx;
942	u32 unhandled;
943};
944
945#ifdef CONFIG_IWLWIFI_DEBUGFS
946/* management statistics */
947enum iwl_mgmt_stats {
948	MANAGEMENT_ASSOC_REQ = 0,
949	MANAGEMENT_ASSOC_RESP,
950	MANAGEMENT_REASSOC_REQ,
951	MANAGEMENT_REASSOC_RESP,
952	MANAGEMENT_PROBE_REQ,
953	MANAGEMENT_PROBE_RESP,
954	MANAGEMENT_BEACON,
955	MANAGEMENT_ATIM,
956	MANAGEMENT_DISASSOC,
957	MANAGEMENT_AUTH,
958	MANAGEMENT_DEAUTH,
959	MANAGEMENT_ACTION,
960	MANAGEMENT_MAX,
961};
962/* control statistics */
963enum iwl_ctrl_stats {
964	CONTROL_BACK_REQ =  0,
965	CONTROL_BACK,
966	CONTROL_PSPOLL,
967	CONTROL_RTS,
968	CONTROL_CTS,
969	CONTROL_ACK,
970	CONTROL_CFEND,
971	CONTROL_CFENDACK,
972	CONTROL_MAX,
973};
974
975struct traffic_stats {
976	u32 mgmt[MANAGEMENT_MAX];
977	u32 ctrl[CONTROL_MAX];
978	u32 data_cnt;
979	u64 data_bytes;
980};
981#else
982struct traffic_stats {
983	u64 data_bytes;
984};
985#endif
986
987/*
988 * iwl_switch_rxon: "channel switch" structure
989 *
990 * @ switch_in_progress: channel switch in progress
991 * @ channel: new channel
992 */
993struct iwl_switch_rxon {
994	bool switch_in_progress;
995	__le16 channel;
996};
997
998/*
999 * schedule the timer to wake up every UCODE_TRACE_PERIOD milliseconds
1000 * to perform continuous uCode event logging operation if enabled
1001 */
1002#define UCODE_TRACE_PERIOD (100)
1003
1004/*
1005 * iwl_event_log: current uCode event log position
1006 *
1007 * @ucode_trace: enable/disable ucode continuous trace timer
1008 * @num_wraps: how many times the event buffer wraps
1009 * @next_entry:  the entry just before the next one that uCode would fill
1010 * @non_wraps_count: counter for no wrap detected when dump ucode events
1011 * @wraps_once_count: counter for wrap once detected when dump ucode events
1012 * @wraps_more_count: counter for wrap more than once detected
1013 *		      when dump ucode events
1014 */
1015struct iwl_event_log {
1016	bool ucode_trace;
1017	u32 num_wraps;
1018	u32 next_entry;
1019	int non_wraps_count;
1020	int wraps_once_count;
1021	int wraps_more_count;
1022};
1023
1024/*
1025 * host interrupt timeout value
1026 * used with setting interrupt coalescing timer
1027 * the CSR_INT_COALESCING is an 8 bit register in 32-usec unit
1028 *
1029 * default interrupt coalescing timer is 64 x 32 = 2048 usecs
1030 * default interrupt coalescing calibration timer is 16 x 32 = 512 usecs
1031 */
1032#define IWL_HOST_INT_TIMEOUT_MAX	(0xFF)
1033#define IWL_HOST_INT_TIMEOUT_DEF	(0x40)
1034#define IWL_HOST_INT_TIMEOUT_MIN	(0x0)
1035#define IWL_HOST_INT_CALIB_TIMEOUT_MAX	(0xFF)
1036#define IWL_HOST_INT_CALIB_TIMEOUT_DEF	(0x10)
1037#define IWL_HOST_INT_CALIB_TIMEOUT_MIN	(0x0)
1038
1039/*
1040 * This is the threshold value of plcp error rate per 100mSecs.  It is
1041 * used to set and check for the validity of plcp_delta.
1042 */
1043#define IWL_MAX_PLCP_ERR_THRESHOLD_MIN	(0)
1044#define IWL_MAX_PLCP_ERR_THRESHOLD_DEF	(50)
1045#define IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF	(100)
1046#define IWL_MAX_PLCP_ERR_EXT_LONG_THRESHOLD_DEF	(200)
1047#define IWL_MAX_PLCP_ERR_THRESHOLD_MAX	(255)
1048
1049#define IWL_DELAY_NEXT_FORCE_RF_RESET  (HZ*3)
1050#define IWL_DELAY_NEXT_FORCE_FW_RELOAD (HZ*5)
1051
1052/* timer constants use to monitor and recover stuck tx queues in mSecs */
1053#define IWL_MONITORING_PERIOD  (1000)
1054#define IWL_ONE_HUNDRED_MSECS   (100)
1055#define IWL_SIXTY_SECS          (60000)
1056
1057enum iwl_reset {
1058	IWL_RF_RESET = 0,
1059	IWL_FW_RESET,
1060	IWL_MAX_FORCE_RESET,
1061};
1062
1063struct iwl_force_reset {
1064	int reset_request_count;
1065	int reset_success_count;
1066	int reset_reject_count;
1067	unsigned long reset_duration;
1068	unsigned long last_force_reset_jiffies;
1069};
1070
1071struct iwl_priv {
1072
1073	/* ieee device used by generic ieee processing code */
1074	struct ieee80211_hw *hw;
1075	struct ieee80211_channel *ieee_channels;
1076	struct ieee80211_rate *ieee_rates;
1077	struct iwl_cfg *cfg;
1078
1079	/* temporary frame storage list */
1080	struct list_head free_frames;
1081	int frames_count;
1082
1083	enum ieee80211_band band;
1084	int alloc_rxb_page;
1085
1086	void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv,
1087				       struct iwl_rx_mem_buffer *rxb);
1088
1089	struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
1090
1091	/* spectrum measurement report caching */
1092	struct iwl_spectrum_notification measure_report;
1093	u8 measurement_status;
1094
1095	/* ucode beacon time */
1096	u32 ucode_beacon_time;
1097	int missed_beacon_threshold;
1098
1099	/* storing the jiffies when the plcp error rate is received */
1100	unsigned long plcp_jiffies;
1101
1102	/* force reset */
1103	struct iwl_force_reset force_reset[IWL_MAX_FORCE_RESET];
1104
1105	/* we allocate array of iwl4965_channel_info for NIC's valid channels.
1106	 *    Access via channel # using indirect index array */
1107	struct iwl_channel_info *channel_info;	/* channel info array */
1108	u8 channel_count;	/* # of channels */
1109
1110	/* thermal calibration */
1111	s32 temperature;	/* degrees Kelvin */
1112	s32 last_temperature;
1113
1114	/* init calibration results */
1115	struct iwl_calib_result calib_results[IWL_CALIB_MAX];
1116
1117	/* Scan related variables */
1118	unsigned long next_scan_jiffies;
1119	unsigned long scan_start;
1120	unsigned long scan_pass_start;
1121	unsigned long scan_start_tsf;
1122	void *scan;
1123	int scan_bands;
1124	struct cfg80211_scan_request *scan_request;
1125	bool is_internal_short_scan;
1126	u8 scan_tx_ant[IEEE80211_NUM_BANDS];
1127	u8 mgmt_tx_ant;
1128
1129	/* spinlock */
1130	spinlock_t lock;	/* protect general shared data */
1131	spinlock_t hcmd_lock;	/* protect hcmd */
1132	spinlock_t reg_lock;	/* protect hw register access */
1133	struct mutex mutex;
1134	struct mutex sync_cmd_mutex; /* enable serialization of sync commands */
1135
1136	/* basic pci-network driver stuff */
1137	struct pci_dev *pci_dev;
1138
1139	/* pci hardware address support */
1140	void __iomem *hw_base;
1141	u32  hw_rev;
1142	u32  hw_wa_rev;
1143	u8   rev_id;
1144
1145	/* uCode images, save to reload in case of failure */
1146	int fw_index;			/* firmware we're trying to load */
1147	u32 ucode_ver;			/* version of ucode, copy of
1148					   iwl_ucode.ver */
1149	struct fw_desc ucode_code;	/* runtime inst */
1150	struct fw_desc ucode_data;	/* runtime data original */
1151	struct fw_desc ucode_data_backup;	/* runtime data save/restore */
1152	struct fw_desc ucode_init;	/* initialization inst */
1153	struct fw_desc ucode_init_data;	/* initialization data */
1154	struct fw_desc ucode_boot;	/* bootstrap inst */
1155	enum ucode_type ucode_type;
1156	u8 ucode_write_complete;	/* the image write is complete */
1157	char firmware_name[25];
1158
1159
1160	struct iwl_rxon_time_cmd rxon_timing;
1161
1162	/* We declare this const so it can only be
1163	 * changed via explicit cast within the
1164	 * routines that actually update the physical
1165	 * hardware */
1166	const struct iwl_rxon_cmd active_rxon;
1167	struct iwl_rxon_cmd staging_rxon;
1168
1169	struct iwl_switch_rxon switch_rxon;
1170
1171	/* 1st responses from initialize and runtime uCode images.
1172	 * 4965's initialize alive response contains some calibration data. */
1173	struct iwl_init_alive_resp card_alive_init;
1174	struct iwl_alive_resp card_alive;
1175
1176	unsigned long last_blink_time;
1177	u8 last_blink_rate;
1178	u8 allow_blinking;
1179	u64 led_tpt;
1180
1181	u16 active_rate;
1182
1183	u8 start_calib;
1184	struct iwl_sensitivity_data sensitivity_data;
1185	struct iwl_chain_noise_data chain_noise_data;
1186	__le16 sensitivity_tbl[HD_TABLE_SIZE];
1187
1188	struct iwl_ht_config current_ht_config;
1189	u8 last_phy_res[100];
1190
1191	/* Rate scaling data */
1192	u8 retry_rate;
1193
1194	wait_queue_head_t wait_command_queue;
1195
1196	int activity_timer_active;
1197
1198	/* Rx and Tx DMA processing queues */
1199	struct iwl_rx_queue rxq;
1200	struct iwl_tx_queue *txq;
1201	unsigned long txq_ctx_active_msk;
1202	struct iwl_dma_ptr  kw;	/* keep warm address */
1203	struct iwl_dma_ptr  scd_bc_tbls;
1204
1205	u32 scd_base_addr;	/* scheduler sram base address */
1206
1207	unsigned long status;
1208
1209	int last_rx_noise;	/* From beacon statistics */
1210
1211	/* counts mgmt, ctl, and data packets */
1212	struct traffic_stats tx_stats;
1213	struct traffic_stats rx_stats;
1214
1215	/* counts interrupts */
1216	struct isr_statistics isr_stats;
1217
1218	struct iwl_power_mgr power_data;
1219	struct iwl_tt_mgmt thermal_throttle;
1220
1221	struct iwl_notif_statistics statistics;
1222#ifdef CONFIG_IWLWIFI_DEBUG
1223	struct iwl_notif_statistics accum_statistics;
1224	struct iwl_notif_statistics delta_statistics;
1225	struct iwl_notif_statistics max_delta;
1226#endif
1227
1228	/* context information */
1229	u8 bssid[ETH_ALEN];
1230	u16 rts_threshold;
1231	u8 mac_addr[ETH_ALEN];
1232
1233	/*station table variables */
1234	spinlock_t sta_lock;
1235	int num_stations;
1236	struct iwl_station_entry stations[IWL_STATION_COUNT];
1237	struct iwl_wep_key wep_keys[WEP_KEYS_MAX]; /* protected by mutex */
1238	u8 default_wep_key;
1239	u8 key_mapping_key;
1240	unsigned long ucode_key_table;
1241
1242	/* queue refcounts */
1243#define IWL_MAX_HW_QUEUES	32
1244	unsigned long queue_stopped[BITS_TO_LONGS(IWL_MAX_HW_QUEUES)];
1245	/* for each AC */
1246	atomic_t queue_stop_count[4];
1247
1248	/* Indication if ieee80211_ops->open has been called */
1249	u8 is_open;
1250
1251	u8 mac80211_registered;
1252
1253	/* eeprom -- this is in the card's little endian byte order */
1254	u8 *eeprom;
1255	int    nvm_device_type;
1256	struct iwl_eeprom_calib_info *calib_info;
1257
1258	enum nl80211_iftype iw_mode;
1259
1260	struct sk_buff *ibss_beacon;
1261
1262	/* Last Rx'd beacon timestamp */
1263	u64 timestamp;
1264	u16 beacon_int;
1265	struct ieee80211_vif *vif;
1266
1267	union {
1268#if defined(CONFIG_IWL3945) || defined(CONFIG_IWL3945_MODULE)
1269		struct {
1270			void *shared_virt;
1271			dma_addr_t shared_phys;
1272
1273			struct delayed_work thermal_periodic;
1274			struct delayed_work rfkill_poll;
1275
1276			struct iwl3945_notif_statistics statistics;
1277
1278			u32 sta_supp_rates;
1279			int last_rx_rssi;	/* From Rx packet statistics */
1280
1281			/* Rx'd packet timing information */
1282			u32 last_beacon_time;
1283			u64 last_tsf;
1284
1285			/*
1286			 * each calibration channel group in the
1287			 * EEPROM has a derived clip setting for
1288			 * each rate.
1289			 */
1290			const struct iwl3945_clip_group clip_groups[5];
1291
1292		} _3945;
1293#endif
1294#if defined(CONFIG_IWLAGN) || defined(CONFIG_IWLAGN_MODULE)
1295		struct {
1296			/* INT ICT Table */
1297			__le32 *ict_tbl;
1298			void *ict_tbl_vir;
1299			dma_addr_t ict_tbl_dma;
1300			dma_addr_t aligned_ict_tbl_dma;
1301			int ict_index;
1302			u32 inta;
1303			bool use_ict;
1304			/*
1305			 * reporting the number of tids has AGG on. 0 means
1306			 * no AGGREGATION
1307			 */
1308			u8 agg_tids_count;
1309		} _agn;
1310#endif
1311	};
1312
1313	struct iwl_hw_params hw_params;
1314
1315	u32 inta_mask;
1316	/* Current association information needed to configure the
1317	 * hardware */
1318	u16 assoc_id;
1319	u16 assoc_capability;
1320
1321	struct iwl_qos_info qos_data;
1322
1323	struct workqueue_struct *workqueue;
1324
1325	struct work_struct restart;
1326	struct work_struct scan_completed;
1327	struct work_struct rx_replenish;
1328	struct work_struct abort_scan;
1329	struct work_struct request_scan;
1330	struct work_struct beacon_update;
1331	struct work_struct tt_work;
1332	struct work_struct ct_enter;
1333	struct work_struct ct_exit;
1334
1335	struct tasklet_struct irq_tasklet;
1336
1337	struct delayed_work init_alive_start;
1338	struct delayed_work alive_start;
1339	struct delayed_work scan_check;
1340
1341	/* TX Power */
1342	s8 tx_power_user_lmt;
1343	s8 tx_power_device_lmt;
1344	s8 tx_power_lmt_in_half_dbm; /* max tx power in half-dBm format */
1345
1346
1347#ifdef CONFIG_IWLWIFI_DEBUG
1348	/* debugging info */
1349	u32 debug_level; /* per device debugging will override global
1350			    iwl_debug_level if set */
1351	u32 framecnt_to_us;
1352	atomic_t restrict_refcnt;
1353	bool disable_ht40;
1354#ifdef CONFIG_IWLWIFI_DEBUGFS
1355	/* debugfs */
1356	u16 tx_traffic_idx;
1357	u16 rx_traffic_idx;
1358	u8 *tx_traffic;
1359	u8 *rx_traffic;
1360	struct dentry *debugfs_dir;
1361	u32 dbgfs_sram_offset, dbgfs_sram_len;
1362#endif /* CONFIG_IWLWIFI_DEBUGFS */
1363#endif /* CONFIG_IWLWIFI_DEBUG */
1364
1365	struct work_struct txpower_work;
1366	u32 disable_sens_cal;
1367	u32 disable_chain_noise_cal;
1368	u32 disable_tx_power_cal;
1369	struct work_struct run_time_calib_work;
1370	struct timer_list statistics_periodic;
1371	struct timer_list ucode_trace;
1372	struct timer_list monitor_recover;
1373	bool hw_ready;
1374
1375	struct iwl_event_log event_log;
1376}; /*iwl_priv */
1377
1378static inline void iwl_txq_ctx_activate(struct iwl_priv *priv, int txq_id)
1379{
1380	set_bit(txq_id, &priv->txq_ctx_active_msk);
1381}
1382
1383static inline void iwl_txq_ctx_deactivate(struct iwl_priv *priv, int txq_id)
1384{
1385	clear_bit(txq_id, &priv->txq_ctx_active_msk);
1386}
1387
1388#ifdef CONFIG_IWLWIFI_DEBUG
1389const char *iwl_get_tx_fail_reason(u32 status);
1390/*
1391 * iwl_get_debug_level: Return active debug level for device
1392 *
1393 * Using sysfs it is possible to set per device debug level. This debug
1394 * level will be used if set, otherwise the global debug level which can be
1395 * set via module parameter is used.
1396 */
1397static inline u32 iwl_get_debug_level(struct iwl_priv *priv)
1398{
1399	if (priv->debug_level)
1400		return priv->debug_level;
1401	else
1402		return iwl_debug_level;
1403}
1404#else
1405static inline const char *iwl_get_tx_fail_reason(u32 status) { return ""; }
1406
1407static inline u32 iwl_get_debug_level(struct iwl_priv *priv)
1408{
1409	return iwl_debug_level;
1410}
1411#endif
1412
1413
1414static inline struct ieee80211_hdr *iwl_tx_queue_get_hdr(struct iwl_priv *priv,
1415							 int txq_id, int idx)
1416{
1417	if (priv->txq[txq_id].txb[idx].skb[0])
1418		return (struct ieee80211_hdr *)priv->txq[txq_id].
1419				txb[idx].skb[0]->data;
1420	return NULL;
1421}
1422
1423
1424static inline int iwl_is_associated(struct iwl_priv *priv)
1425{
1426	return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
1427}
1428
1429static inline int is_channel_valid(const struct iwl_channel_info *ch_info)
1430{
1431	if (ch_info == NULL)
1432		return 0;
1433	return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
1434}
1435
1436static inline int is_channel_radar(const struct iwl_channel_info *ch_info)
1437{
1438	return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
1439}
1440
1441static inline u8 is_channel_a_band(const struct iwl_channel_info *ch_info)
1442{
1443	return ch_info->band == IEEE80211_BAND_5GHZ;
1444}
1445
1446static inline u8 is_channel_bg_band(const struct iwl_channel_info *ch_info)
1447{
1448	return ch_info->band == IEEE80211_BAND_2GHZ;
1449}
1450
1451static inline int is_channel_passive(const struct iwl_channel_info *ch)
1452{
1453	return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
1454}
1455
1456static inline int is_channel_ibss(const struct iwl_channel_info *ch)
1457{
1458	return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
1459}
1460
1461static inline void __iwl_free_pages(struct iwl_priv *priv, struct page *page)
1462{
1463	__free_pages(page, priv->hw_params.rx_page_order);
1464	priv->alloc_rxb_page--;
1465}
1466
1467static inline void iwl_free_pages(struct iwl_priv *priv, unsigned long page)
1468{
1469	free_pages(page, priv->hw_params.rx_page_order);
1470	priv->alloc_rxb_page--;
1471}
1472#endif				/* __iwl_dev_h__ */
1473