iwl-dev.h revision 7d2ed110a80991849a2824a6dc3c063ffca9dbe4
1/******************************************************************************
2 *
3 * Copyright(c) 2003 - 2009 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_bg_cfg;
56extern struct iwl_cfg iwl5100_abg_cfg;
57extern struct iwl_cfg iwl5150_agn_cfg;
58extern struct iwl_cfg iwl6000i_2agn_cfg;
59extern struct iwl_cfg iwl6000i_2abg_cfg;
60extern struct iwl_cfg iwl6000i_2bg_cfg;
61extern struct iwl_cfg iwl6000_3agn_cfg;
62extern struct iwl_cfg iwl6050_2agn_cfg;
63extern struct iwl_cfg iwl6050_2abg_cfg;
64extern struct iwl_cfg iwl1000_bgn_cfg;
65extern struct iwl_cfg iwl1000_bg_cfg;
66
67struct iwl_tx_queue;
68
69/* shared structures from iwl-5000.c */
70extern struct iwl_mod_params iwl50_mod_params;
71extern struct iwl_ucode_ops iwl5000_ucode;
72extern struct iwl_lib_ops iwl5000_lib;
73extern struct iwl_hcmd_ops iwl5000_hcmd;
74extern struct iwl_hcmd_utils_ops iwl5000_hcmd_utils;
75
76/* shared functions from iwl-5000.c */
77extern u16 iwl5000_get_hcmd_size(u8 cmd_id, u16 len);
78extern u16 iwl5000_build_addsta_hcmd(const struct iwl_addsta_cmd *cmd,
79				     u8 *data);
80extern void iwl5000_rts_tx_cmd_flag(struct ieee80211_tx_info *info,
81				    __le32 *tx_flags);
82extern int iwl5000_calc_rssi(struct iwl_priv *priv,
83			     struct iwl_rx_phy_res *rx_resp);
84extern void iwl5000_nic_config(struct iwl_priv *priv);
85extern u16 iwl5000_eeprom_calib_version(struct iwl_priv *priv);
86extern const u8 *iwl5000_eeprom_query_addr(const struct iwl_priv *priv,
87				    size_t offset);
88extern void iwl5000_txq_update_byte_cnt_tbl(struct iwl_priv *priv,
89					    struct iwl_tx_queue *txq,
90					    u16 byte_cnt);
91extern void iwl5000_txq_inval_byte_cnt_tbl(struct iwl_priv *priv,
92				    struct iwl_tx_queue *txq);
93extern int iwl5000_load_ucode(struct iwl_priv *priv);
94extern void iwl5000_init_alive_start(struct iwl_priv *priv);
95extern int iwl5000_alive_notify(struct iwl_priv *priv);
96extern int iwl5000_hw_set_hw_params(struct iwl_priv *priv);
97extern int iwl5000_txq_agg_enable(struct iwl_priv *priv, int txq_id,
98			   int tx_fifo, int sta_id, int tid, u16 ssn_idx);
99extern int iwl5000_txq_agg_disable(struct iwl_priv *priv, u16 txq_id,
100			    u16 ssn_idx, u8 tx_fifo);
101extern void iwl5000_txq_set_sched(struct iwl_priv *priv, u32 mask);
102extern void iwl5000_setup_deferred_work(struct iwl_priv *priv);
103extern void iwl5000_rx_handler_setup(struct iwl_priv *priv);
104extern int iwl5000_hw_valid_rtc_data_addr(u32 addr);
105extern int iwl5000_send_tx_power(struct iwl_priv *priv);
106extern void iwl5000_temperature(struct iwl_priv *priv);
107
108/* CT-KILL constants */
109#define CT_KILL_THRESHOLD_LEGACY   110 /* in Celsius */
110#define CT_KILL_THRESHOLD	   114 /* in Celsius */
111#define CT_KILL_EXIT_THRESHOLD     95  /* in Celsius */
112
113/* Default noise level to report when noise measurement is not available.
114 *   This may be because we're:
115 *   1)  Not associated (4965, no beacon statistics being sent to driver)
116 *   2)  Scanning (noise measurement does not apply to associated channel)
117 *   3)  Receiving CCK (3945 delivers noise info only for OFDM frames)
118 * Use default noise value of -127 ... this is below the range of measurable
119 *   Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
120 *   Also, -127 works better than 0 when averaging frames with/without
121 *   noise info (e.g. averaging might be done in app); measured dBm values are
122 *   always negative ... using a negative value as the default keeps all
123 *   averages within an s8's (used in some apps) range of negative values. */
124#define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
125
126/*
127 * RTS threshold here is total size [2347] minus 4 FCS bytes
128 * Per spec:
129 *   a value of 0 means RTS on all data/management packets
130 *   a value > max MSDU size means no RTS
131 * else RTS for data/management frames where MPDU is larger
132 *   than RTS value.
133 */
134#define DEFAULT_RTS_THRESHOLD     2347U
135#define MIN_RTS_THRESHOLD         0U
136#define MAX_RTS_THRESHOLD         2347U
137#define MAX_MSDU_SIZE		  2304U
138#define MAX_MPDU_SIZE		  2346U
139#define DEFAULT_BEACON_INTERVAL   100U
140#define	DEFAULT_SHORT_RETRY_LIMIT 7U
141#define	DEFAULT_LONG_RETRY_LIMIT  4U
142
143struct iwl_rx_mem_buffer {
144	dma_addr_t page_dma;
145	struct page *page;
146	struct list_head list;
147};
148
149#define rxb_addr(r) page_address(r->page)
150
151/* defined below */
152struct iwl_device_cmd;
153
154struct iwl_cmd_meta {
155	/* only for SYNC commands, iff the reply skb is wanted */
156	struct iwl_host_cmd *source;
157	/*
158	 * only for ASYNC commands
159	 * (which is somewhat stupid -- look at iwl-sta.c for instance
160	 * which duplicates a bunch of code because the callback isn't
161	 * invoked for SYNC commands, if it were and its result passed
162	 * through it would be simpler...)
163	 */
164	void (*callback)(struct iwl_priv *priv,
165			 struct iwl_device_cmd *cmd,
166			 struct iwl_rx_packet *pkt);
167
168	/* The CMD_SIZE_HUGE flag bit indicates that the command
169	 * structure is stored at the end of the shared queue memory. */
170	u32 flags;
171
172	DECLARE_PCI_UNMAP_ADDR(mapping)
173	DECLARE_PCI_UNMAP_LEN(len)
174};
175
176/*
177 * Generic queue structure
178 *
179 * Contains common data for Rx and Tx queues
180 */
181struct iwl_queue {
182	int n_bd;              /* number of BDs in this queue */
183	int write_ptr;       /* 1-st empty entry (index) host_w*/
184	int read_ptr;         /* last used entry (index) host_r*/
185	dma_addr_t dma_addr;   /* physical addr for BD's */
186	int n_window;	       /* safe queue window */
187	u32 id;
188	int low_mark;	       /* low watermark, resume queue if free
189				* space more than this */
190	int high_mark;         /* high watermark, stop queue if free
191				* space less than this */
192} __attribute__ ((packed));
193
194/* One for each TFD */
195struct iwl_tx_info {
196	struct sk_buff *skb[IWL_NUM_OF_TBS - 1];
197};
198
199/**
200 * struct iwl_tx_queue - Tx Queue for DMA
201 * @q: generic Rx/Tx queue descriptor
202 * @bd: base of circular buffer of TFDs
203 * @cmd: array of command/TX buffer pointers
204 * @meta: array of meta data for each command/tx buffer
205 * @dma_addr_cmd: physical address of cmd/tx buffer array
206 * @txb: array of per-TFD driver data
207 * @need_update: indicates need to update read/write index
208 * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
209 *
210 * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
211 * descriptors) and required locking structures.
212 */
213#define TFD_TX_CMD_SLOTS 256
214#define TFD_CMD_SLOTS 32
215
216struct iwl_tx_queue {
217	struct iwl_queue q;
218	void *tfds;
219	struct iwl_device_cmd **cmd;
220	struct iwl_cmd_meta *meta;
221	struct iwl_tx_info *txb;
222	u8 need_update;
223	u8 sched_retry;
224	u8 active;
225	u8 swq_id;
226};
227
228#define IWL_NUM_SCAN_RATES         (2)
229
230struct iwl4965_channel_tgd_info {
231	u8 type;
232	s8 max_power;
233};
234
235struct iwl4965_channel_tgh_info {
236	s64 last_radar_time;
237};
238
239#define IWL4965_MAX_RATE (33)
240
241struct iwl3945_clip_group {
242	/* maximum power level to prevent clipping for each rate, derived by
243	 *   us from this band's saturation power in EEPROM */
244	const s8 clip_powers[IWL_MAX_RATES];
245};
246
247/* current Tx power values to use, one for each rate for each channel.
248 * requested power is limited by:
249 * -- regulatory EEPROM limits for this channel
250 * -- hardware capabilities (clip-powers)
251 * -- spectrum management
252 * -- user preference (e.g. iwconfig)
253 * when requested power is set, base power index must also be set. */
254struct iwl3945_channel_power_info {
255	struct iwl3945_tx_power tpc;	/* actual radio and DSP gain settings */
256	s8 power_table_index;	/* actual (compenst'd) index into gain table */
257	s8 base_power_index;	/* gain index for power at factory temp. */
258	s8 requested_power;	/* power (dBm) requested for this chnl/rate */
259};
260
261/* current scan Tx power values to use, one for each scan rate for each
262 * channel. */
263struct iwl3945_scan_power_info {
264	struct iwl3945_tx_power tpc;	/* actual radio and DSP gain settings */
265	s8 power_table_index;	/* actual (compenst'd) index into gain table */
266	s8 requested_power;	/* scan pwr (dBm) requested for chnl/rate */
267};
268
269/*
270 * One for each channel, holds all channel setup data
271 * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
272 *     with one another!
273 */
274struct iwl_channel_info {
275	struct iwl4965_channel_tgd_info tgd;
276	struct iwl4965_channel_tgh_info tgh;
277	struct iwl_eeprom_channel eeprom;	/* EEPROM regulatory limit */
278	struct iwl_eeprom_channel ht40_eeprom;	/* EEPROM regulatory limit for
279						 * HT40 channel */
280
281	u8 channel;	  /* channel number */
282	u8 flags;	  /* flags copied from EEPROM */
283	s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
284	s8 curr_txpow;	  /* (dBm) regulatory/spectrum/user (not h/w) limit */
285	s8 min_power;	  /* always 0 */
286	s8 scan_power;	  /* (dBm) regul. eeprom, direct scans, any rate */
287
288	u8 group_index;	  /* 0-4, maps channel to group1/2/3/4/5 */
289	u8 band_index;	  /* 0-4, maps channel to band1/2/3/4/5 */
290	enum ieee80211_band band;
291
292	/* HT40 channel info */
293	s8 ht40_max_power_avg;	/* (dBm) regul. eeprom, normal Tx, any rate */
294	u8 ht40_flags;		/* flags copied from EEPROM */
295	u8 ht40_extension_channel; /* HT_IE_EXT_CHANNEL_* */
296
297	/* Radio/DSP gain settings for each "normal" data Tx rate.
298	 * These include, in addition to RF and DSP gain, a few fields for
299	 *   remembering/modifying gain settings (indexes). */
300	struct iwl3945_channel_power_info power_info[IWL4965_MAX_RATE];
301
302	/* Radio/DSP gain settings for each scan rate, for directed scans. */
303	struct iwl3945_scan_power_info scan_pwr_info[IWL_NUM_SCAN_RATES];
304};
305
306#define IWL_TX_FIFO_AC0	0
307#define IWL_TX_FIFO_AC1	1
308#define IWL_TX_FIFO_AC2	2
309#define IWL_TX_FIFO_AC3	3
310#define IWL_TX_FIFO_HCCA_1	5
311#define IWL_TX_FIFO_HCCA_2	6
312#define IWL_TX_FIFO_NONE	7
313
314/* Minimum number of queues. MAX_NUM is defined in hw specific files.
315 * Set the minimum to accommodate the 4 standard TX queues, 1 command
316 * queue, 2 (unused) HCCA queues, and 4 HT queues (one for each AC) */
317#define IWL_MIN_NUM_QUEUES	10
318
319/*
320 * Queue #4 is the command queue for 3945/4965/5x00/1000/6x00,
321 * the driver maps it into the appropriate device FIFO for the
322 * uCode.
323 */
324#define IWL_CMD_QUEUE_NUM	4
325
326/* Power management (not Tx power) structures */
327
328enum iwl_pwr_src {
329	IWL_PWR_SRC_VMAIN,
330	IWL_PWR_SRC_VAUX,
331};
332
333#define IEEE80211_DATA_LEN              2304
334#define IEEE80211_4ADDR_LEN             30
335#define IEEE80211_HLEN                  (IEEE80211_4ADDR_LEN)
336#define IEEE80211_FRAME_LEN             (IEEE80211_DATA_LEN + IEEE80211_HLEN)
337
338struct iwl_frame {
339	union {
340		struct ieee80211_hdr frame;
341		struct iwl_tx_beacon_cmd beacon;
342		u8 raw[IEEE80211_FRAME_LEN];
343		u8 cmd[360];
344	} u;
345	struct list_head list;
346};
347
348#define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
349#define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
350#define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
351
352enum {
353	CMD_SYNC = 0,
354	CMD_SIZE_NORMAL = 0,
355	CMD_NO_SKB = 0,
356	CMD_SIZE_HUGE = (1 << 0),
357	CMD_ASYNC = (1 << 1),
358	CMD_WANT_SKB = (1 << 2),
359};
360
361#define DEF_CMD_PAYLOAD_SIZE 320
362
363/*
364 * IWL_LINK_HDR_MAX should include ieee80211_hdr, radiotap header,
365 * SNAP header and alignment. It should also be big enough for 802.11
366 * control frames.
367 */
368#define IWL_LINK_HDR_MAX 64
369
370/**
371 * struct iwl_device_cmd
372 *
373 * For allocation of the command and tx queues, this establishes the overall
374 * size of the largest command we send to uCode, except for a scan command
375 * (which is relatively huge; space is allocated separately).
376 */
377struct iwl_device_cmd {
378	struct iwl_cmd_header hdr;	/* uCode API */
379	union {
380		u32 flags;
381		u8 val8;
382		u16 val16;
383		u32 val32;
384		struct iwl_tx_cmd tx;
385		struct iwl6000_channel_switch_cmd chswitch;
386		u8 payload[DEF_CMD_PAYLOAD_SIZE];
387	} __attribute__ ((packed)) cmd;
388} __attribute__ ((packed));
389
390#define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_device_cmd))
391
392
393struct iwl_host_cmd {
394	const void *data;
395	unsigned long reply_page;
396	void (*callback)(struct iwl_priv *priv,
397			 struct iwl_device_cmd *cmd,
398			 struct iwl_rx_packet *pkt);
399	u32 flags;
400	u16 len;
401	u8 id;
402};
403
404#define SUP_RATE_11A_MAX_NUM_CHANNELS  8
405#define SUP_RATE_11B_MAX_NUM_CHANNELS  4
406#define SUP_RATE_11G_MAX_NUM_CHANNELS  12
407
408/**
409 * struct iwl_rx_queue - Rx queue
410 * @bd: driver's pointer to buffer of receive buffer descriptors (rbd)
411 * @dma_addr: bus address of buffer of receive buffer descriptors (rbd)
412 * @read: Shared index to newest available Rx buffer
413 * @write: Shared index to oldest written Rx packet
414 * @free_count: Number of pre-allocated buffers in rx_free
415 * @rx_free: list of free SKBs for use
416 * @rx_used: List of Rx buffers with no SKB
417 * @need_update: flag to indicate we need to update read/write index
418 * @rb_stts: driver's pointer to receive buffer status
419 * @rb_stts_dma: bus address of receive buffer status
420 *
421 * NOTE:  rx_free and rx_used are used as a FIFO for iwl_rx_mem_buffers
422 */
423struct iwl_rx_queue {
424	__le32 *bd;
425	dma_addr_t dma_addr;
426	struct iwl_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
427	struct iwl_rx_mem_buffer *queue[RX_QUEUE_SIZE];
428	u32 read;
429	u32 write;
430	u32 free_count;
431	u32 write_actual;
432	struct list_head rx_free;
433	struct list_head rx_used;
434	int need_update;
435	struct iwl_rb_status *rb_stts;
436	dma_addr_t rb_stts_dma;
437	spinlock_t lock;
438};
439
440#define IWL_SUPPORTED_RATES_IE_LEN         8
441
442#define MAX_TID_COUNT        9
443
444#define IWL_INVALID_RATE     0xFF
445#define IWL_INVALID_VALUE    -1
446
447/**
448 * struct iwl_ht_agg -- aggregation status while waiting for block-ack
449 * @txq_id: Tx queue used for Tx attempt
450 * @frame_count: # frames attempted by Tx command
451 * @wait_for_ba: Expect block-ack before next Tx reply
452 * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window
453 * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window
454 * @bitmap1: High order, one bit for each frame pending ACK in Tx window
455 * @rate_n_flags: Rate at which Tx was attempted
456 *
457 * If REPLY_TX indicates that aggregation was attempted, driver must wait
458 * for block ack (REPLY_COMPRESSED_BA).  This struct stores tx reply info
459 * until block ack arrives.
460 */
461struct iwl_ht_agg {
462	u16 txq_id;
463	u16 frame_count;
464	u16 wait_for_ba;
465	u16 start_idx;
466	u64 bitmap;
467	u32 rate_n_flags;
468#define IWL_AGG_OFF 0
469#define IWL_AGG_ON 1
470#define IWL_EMPTYING_HW_QUEUE_ADDBA 2
471#define IWL_EMPTYING_HW_QUEUE_DELBA 3
472	u8 state;
473};
474
475
476struct iwl_tid_data {
477	u16 seq_number;
478	u16 tfds_in_queue;
479	struct iwl_ht_agg agg;
480};
481
482struct iwl_hw_key {
483	enum ieee80211_key_alg alg;
484	int keylen;
485	u8 keyidx;
486	u8 key[32];
487};
488
489union iwl_ht_rate_supp {
490	u16 rates;
491	struct {
492		u8 siso_rate;
493		u8 mimo_rate;
494	};
495};
496
497#define CFG_HT_RX_AMPDU_FACTOR_DEF  (0x3)
498
499/*
500 * Maximal MPDU density for TX aggregation
501 * 4 - 2us density
502 * 5 - 4us density
503 * 6 - 8us density
504 * 7 - 16us density
505 */
506#define CFG_HT_MPDU_DENSITY_4USEC   (0x5)
507#define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_4USEC
508
509struct iwl_ht_config {
510	/* self configuration data */
511	bool is_ht;
512	bool is_40mhz;
513	bool single_chain_sufficient;
514	u8 sm_ps;
515	/* BSS related data */
516	u8 extension_chan_offset;
517	u8 ht_protection;
518	u8 non_GF_STA_present;
519};
520
521union iwl_qos_capabity {
522	struct {
523		u8 edca_count:4;	/* bit 0-3 */
524		u8 q_ack:1;		/* bit 4 */
525		u8 queue_request:1;	/* bit 5 */
526		u8 txop_request:1;	/* bit 6 */
527		u8 reserved:1;		/* bit 7 */
528	} q_AP;
529	struct {
530		u8 acvo_APSD:1;		/* bit 0 */
531		u8 acvi_APSD:1;		/* bit 1 */
532		u8 ac_bk_APSD:1;	/* bit 2 */
533		u8 ac_be_APSD:1;	/* bit 3 */
534		u8 q_ack:1;		/* bit 4 */
535		u8 max_len:2;		/* bit 5-6 */
536		u8 more_data_ack:1;	/* bit 7 */
537	} q_STA;
538	u8 val;
539};
540
541/* QoS structures */
542struct iwl_qos_info {
543	int qos_active;
544	union iwl_qos_capabity qos_cap;
545	struct iwl_qosparam_cmd def_qos_parm;
546};
547
548#define STA_PS_STATUS_WAKE             0
549#define STA_PS_STATUS_SLEEP            1
550
551
552struct iwl3945_station_entry {
553	struct iwl3945_addsta_cmd sta;
554	struct iwl_tid_data tid[MAX_TID_COUNT];
555	u8 used;
556	u8 ps_status;
557	struct iwl_hw_key keyinfo;
558};
559
560struct iwl_station_entry {
561	struct iwl_addsta_cmd sta;
562	struct iwl_tid_data tid[MAX_TID_COUNT];
563	u8 used;
564	u8 ps_status;
565	struct iwl_hw_key keyinfo;
566};
567
568/*
569 * iwl_station_priv: Driver's private station information
570 *
571 * When mac80211 creates a station it reserves some space (hw->sta_data_size)
572 * in the structure for use by driver. This structure is places in that
573 * space.
574 *
575 * At the moment use it for the station's rate scaling information.
576 */
577struct iwl_station_priv {
578	struct iwl_lq_sta lq_sta;
579};
580
581/* one for each uCode image (inst/data, boot/init/runtime) */
582struct fw_desc {
583	void *v_addr;		/* access by driver */
584	dma_addr_t p_addr;	/* access by card's busmaster DMA */
585	u32 len;		/* bytes */
586};
587
588/* uCode file layout */
589struct iwl_ucode_header {
590	__le32 ver;	/* major/minor/API/serial */
591	union {
592		struct {
593			__le32 inst_size;	/* bytes of runtime code */
594			__le32 data_size;	/* bytes of runtime data */
595			__le32 init_size;	/* bytes of init code */
596			__le32 init_data_size;	/* bytes of init data */
597			__le32 boot_size;	/* bytes of bootstrap code */
598			u8 data[0];		/* in same order as sizes */
599		} v1;
600		struct {
601			__le32 build;		/* build number */
602			__le32 inst_size;	/* bytes of runtime code */
603			__le32 data_size;	/* bytes of runtime data */
604			__le32 init_size;	/* bytes of init code */
605			__le32 init_data_size;	/* bytes of init data */
606			__le32 boot_size;	/* bytes of bootstrap code */
607			u8 data[0];		/* in same order as sizes */
608		} v2;
609	} u;
610};
611#define UCODE_HEADER_SIZE(ver) ((ver) == 1 ? 24 : 28)
612
613struct iwl4965_ibss_seq {
614	u8 mac[ETH_ALEN];
615	u16 seq_num;
616	u16 frag_num;
617	unsigned long packet_time;
618	struct list_head list;
619};
620
621struct iwl_sensitivity_ranges {
622	u16 min_nrg_cck;
623	u16 max_nrg_cck;
624
625	u16 nrg_th_cck;
626	u16 nrg_th_ofdm;
627
628	u16 auto_corr_min_ofdm;
629	u16 auto_corr_min_ofdm_mrc;
630	u16 auto_corr_min_ofdm_x1;
631	u16 auto_corr_min_ofdm_mrc_x1;
632
633	u16 auto_corr_max_ofdm;
634	u16 auto_corr_max_ofdm_mrc;
635	u16 auto_corr_max_ofdm_x1;
636	u16 auto_corr_max_ofdm_mrc_x1;
637
638	u16 auto_corr_max_cck;
639	u16 auto_corr_max_cck_mrc;
640	u16 auto_corr_min_cck;
641	u16 auto_corr_min_cck_mrc;
642
643	u16 barker_corr_th_min;
644	u16 barker_corr_th_min_mrc;
645	u16 nrg_th_cca;
646};
647
648
649#define KELVIN_TO_CELSIUS(x) ((x)-273)
650#define CELSIUS_TO_KELVIN(x) ((x)+273)
651
652
653/**
654 * struct iwl_hw_params
655 * @max_txq_num: Max # Tx queues supported
656 * @dma_chnl_num: Number of Tx DMA/FIFO channels
657 * @scd_bc_tbls_size: size of scheduler byte count tables
658 * @tfd_size: TFD size
659 * @tx/rx_chains_num: Number of TX/RX chains
660 * @valid_tx/rx_ant: usable antennas
661 * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
662 * @max_rxq_log: Log-base-2 of max_rxq_size
663 * @rx_page_order: Rx buffer page order
664 * @rx_wrt_ptr_reg: FH{39}_RSCSR_CHNL0_WPTR
665 * @max_stations:
666 * @bcast_sta_id:
667 * @ht40_channel: is 40MHz width possible in band 2.4
668 * BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ)
669 * @sw_crypto: 0 for hw, 1 for sw
670 * @max_xxx_size: for ucode uses
671 * @ct_kill_threshold: temperature threshold
672 * @calib_init_cfg: setup initial calibrations for the hw
673 * @struct iwl_sensitivity_ranges: range of sensitivity values
674 */
675struct iwl_hw_params {
676	u8 max_txq_num;
677	u8 dma_chnl_num;
678	u16 scd_bc_tbls_size;
679	u32 tfd_size;
680	u8  tx_chains_num;
681	u8  rx_chains_num;
682	u8  valid_tx_ant;
683	u8  valid_rx_ant;
684	u16 max_rxq_size;
685	u16 max_rxq_log;
686	u32 rx_page_order;
687	u32 rx_wrt_ptr_reg;
688	u8  max_stations;
689	u8  bcast_sta_id;
690	u8  ht40_channel;
691	u8  max_beacon_itrvl;	/* in 1024 ms */
692	u32 max_inst_size;
693	u32 max_data_size;
694	u32 max_bsm_size;
695	u32 ct_kill_threshold; /* value in hw-dependent units */
696	u32 ct_kill_exit_threshold; /* value in hw-dependent units */
697				    /* for 1000, 6000 series and up */
698	u32 calib_init_cfg;
699	const struct iwl_sensitivity_ranges *sens;
700};
701
702
703/******************************************************************************
704 *
705 * Functions implemented in core module which are forward declared here
706 * for use by iwl-[4-5].c
707 *
708 * NOTE:  The implementation of these functions are not hardware specific
709 * which is why they are in the core module files.
710 *
711 * Naming convention --
712 * iwl_         <-- Is part of iwlwifi
713 * iwlXXXX_     <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
714 * iwl4965_bg_      <-- Called from work queue context
715 * iwl4965_mac_     <-- mac80211 callback
716 *
717 ****************************************************************************/
718extern void iwl_update_chain_flags(struct iwl_priv *priv);
719extern int iwl_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src);
720extern const u8 iwl_bcast_addr[ETH_ALEN];
721extern int iwl_rxq_stop(struct iwl_priv *priv);
722extern void iwl_txq_ctx_stop(struct iwl_priv *priv);
723extern int iwl_queue_space(const struct iwl_queue *q);
724static inline int iwl_queue_used(const struct iwl_queue *q, int i)
725{
726	return q->write_ptr > q->read_ptr ?
727		(i >= q->read_ptr && i < q->write_ptr) :
728		!(i < q->read_ptr && i >= q->write_ptr);
729}
730
731
732static inline u8 get_cmd_index(struct iwl_queue *q, u32 index, int is_huge)
733{
734	/*
735	 * This is for init calibration result and scan command which
736	 * required buffer > TFD_MAX_PAYLOAD_SIZE,
737	 * the big buffer at end of command array
738	 */
739	if (is_huge)
740		return q->n_window;	/* must be power of 2 */
741
742	/* Otherwise, use normal size buffers */
743	return index & (q->n_window - 1);
744}
745
746
747struct iwl_dma_ptr {
748	dma_addr_t dma;
749	void *addr;
750	size_t size;
751};
752
753#define IWL_OPERATION_MODE_AUTO     0
754#define IWL_OPERATION_MODE_HT_ONLY  1
755#define IWL_OPERATION_MODE_MIXED    2
756#define IWL_OPERATION_MODE_20MHZ    3
757
758#define IWL_TX_CRC_SIZE 4
759#define IWL_TX_DELIMITER_SIZE 4
760
761#define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
762
763/* Sensitivity and chain noise calibration */
764#define INITIALIZATION_VALUE		0xFFFF
765#define IWL4965_CAL_NUM_BEACONS		20
766#define IWL_CAL_NUM_BEACONS		16
767#define MAXIMUM_ALLOWED_PATHLOSS	15
768
769#define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
770
771#define MAX_FA_OFDM  50
772#define MIN_FA_OFDM  5
773#define MAX_FA_CCK   50
774#define MIN_FA_CCK   5
775
776#define AUTO_CORR_STEP_OFDM       1
777
778#define AUTO_CORR_STEP_CCK     3
779#define AUTO_CORR_MAX_TH_CCK   160
780
781#define NRG_DIFF               2
782#define NRG_STEP_CCK           2
783#define NRG_MARGIN             8
784#define MAX_NUMBER_CCK_NO_FA 100
785
786#define AUTO_CORR_CCK_MIN_VAL_DEF    (125)
787
788#define CHAIN_A             0
789#define CHAIN_B             1
790#define CHAIN_C             2
791#define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
792#define ALL_BAND_FILTER			0xFF00
793#define IN_BAND_FILTER			0xFF
794#define MIN_AVERAGE_NOISE_MAX_VALUE	0xFFFFFFFF
795
796#define NRG_NUM_PREV_STAT_L     20
797#define NUM_RX_CHAINS           3
798
799enum iwl4965_false_alarm_state {
800	IWL_FA_TOO_MANY = 0,
801	IWL_FA_TOO_FEW = 1,
802	IWL_FA_GOOD_RANGE = 2,
803};
804
805enum iwl4965_chain_noise_state {
806	IWL_CHAIN_NOISE_ALIVE = 0,  /* must be 0 */
807	IWL_CHAIN_NOISE_ACCUMULATE,
808	IWL_CHAIN_NOISE_CALIBRATED,
809	IWL_CHAIN_NOISE_DONE,
810};
811
812enum iwl4965_calib_enabled_state {
813	IWL_CALIB_DISABLED = 0,  /* must be 0 */
814	IWL_CALIB_ENABLED = 1,
815};
816
817
818/*
819 * enum iwl_calib
820 * defines the order in which results of initial calibrations
821 * should be sent to the runtime uCode
822 */
823enum iwl_calib {
824	IWL_CALIB_XTAL,
825	IWL_CALIB_DC,
826	IWL_CALIB_LO,
827	IWL_CALIB_TX_IQ,
828	IWL_CALIB_TX_IQ_PERD,
829	IWL_CALIB_BASE_BAND,
830	IWL_CALIB_MAX
831};
832
833/* Opaque calibration results */
834struct iwl_calib_result {
835	void *buf;
836	size_t buf_len;
837};
838
839enum ucode_type {
840	UCODE_NONE = 0,
841	UCODE_INIT,
842	UCODE_RT
843};
844
845/* Sensitivity calib data */
846struct iwl_sensitivity_data {
847	u32 auto_corr_ofdm;
848	u32 auto_corr_ofdm_mrc;
849	u32 auto_corr_ofdm_x1;
850	u32 auto_corr_ofdm_mrc_x1;
851	u32 auto_corr_cck;
852	u32 auto_corr_cck_mrc;
853
854	u32 last_bad_plcp_cnt_ofdm;
855	u32 last_fa_cnt_ofdm;
856	u32 last_bad_plcp_cnt_cck;
857	u32 last_fa_cnt_cck;
858
859	u32 nrg_curr_state;
860	u32 nrg_prev_state;
861	u32 nrg_value[10];
862	u8  nrg_silence_rssi[NRG_NUM_PREV_STAT_L];
863	u32 nrg_silence_ref;
864	u32 nrg_energy_idx;
865	u32 nrg_silence_idx;
866	u32 nrg_th_cck;
867	s32 nrg_auto_corr_silence_diff;
868	u32 num_in_cck_no_fa;
869	u32 nrg_th_ofdm;
870
871	u16 barker_corr_th_min;
872	u16 barker_corr_th_min_mrc;
873	u16 nrg_th_cca;
874};
875
876/* Chain noise (differential Rx gain) calib data */
877struct iwl_chain_noise_data {
878	u32 active_chains;
879	u32 chain_noise_a;
880	u32 chain_noise_b;
881	u32 chain_noise_c;
882	u32 chain_signal_a;
883	u32 chain_signal_b;
884	u32 chain_signal_c;
885	u16 beacon_count;
886	u8 disconn_array[NUM_RX_CHAINS];
887	u8 delta_gain_code[NUM_RX_CHAINS];
888	u8 radio_write;
889	u8 state;
890};
891
892#define	EEPROM_SEM_TIMEOUT 10		/* milliseconds */
893#define EEPROM_SEM_RETRY_LIMIT 1000	/* number of attempts (not time) */
894
895#define IWL_TRAFFIC_ENTRIES	(256)
896#define IWL_TRAFFIC_ENTRY_SIZE  (64)
897
898enum {
899	MEASUREMENT_READY = (1 << 0),
900	MEASUREMENT_ACTIVE = (1 << 1),
901};
902
903enum iwl_nvm_type {
904	NVM_DEVICE_TYPE_EEPROM = 0,
905	NVM_DEVICE_TYPE_OTP,
906};
907
908/*
909 * Two types of OTP memory access modes
910 *   IWL_OTP_ACCESS_ABSOLUTE - absolute address mode,
911 * 			        based on physical memory addressing
912 *   IWL_OTP_ACCESS_RELATIVE - relative address mode,
913 * 			       based on logical memory addressing
914 */
915enum iwl_access_mode {
916	IWL_OTP_ACCESS_ABSOLUTE,
917	IWL_OTP_ACCESS_RELATIVE,
918};
919
920/**
921 * enum iwl_pa_type - Power Amplifier type
922 * @IWL_PA_SYSTEM:  based on uCode configuration
923 * @IWL_PA_INTERNAL: use Internal only
924 */
925enum iwl_pa_type {
926	IWL_PA_SYSTEM = 0,
927	IWL_PA_INTERNAL = 1,
928};
929
930/* interrupt statistics */
931struct isr_statistics {
932	u32 hw;
933	u32 sw;
934	u32 sw_err;
935	u32 sch;
936	u32 alive;
937	u32 rfkill;
938	u32 ctkill;
939	u32 wakeup;
940	u32 rx;
941	u32 rx_handlers[REPLY_MAX];
942	u32 tx;
943	u32 unhandled;
944};
945
946#ifdef CONFIG_IWLWIFI_DEBUGFS
947/* management statistics */
948enum iwl_mgmt_stats {
949	MANAGEMENT_ASSOC_REQ = 0,
950	MANAGEMENT_ASSOC_RESP,
951	MANAGEMENT_REASSOC_REQ,
952	MANAGEMENT_REASSOC_RESP,
953	MANAGEMENT_PROBE_REQ,
954	MANAGEMENT_PROBE_RESP,
955	MANAGEMENT_BEACON,
956	MANAGEMENT_ATIM,
957	MANAGEMENT_DISASSOC,
958	MANAGEMENT_AUTH,
959	MANAGEMENT_DEAUTH,
960	MANAGEMENT_ACTION,
961	MANAGEMENT_MAX,
962};
963/* control statistics */
964enum iwl_ctrl_stats {
965	CONTROL_BACK_REQ =  0,
966	CONTROL_BACK,
967	CONTROL_PSPOLL,
968	CONTROL_RTS,
969	CONTROL_CTS,
970	CONTROL_ACK,
971	CONTROL_CFEND,
972	CONTROL_CFENDACK,
973	CONTROL_MAX,
974};
975
976struct traffic_stats {
977	u32 mgmt[MANAGEMENT_MAX];
978	u32 ctrl[CONTROL_MAX];
979	u32 data_cnt;
980	u64 data_bytes;
981};
982#else
983struct traffic_stats {
984	u64 data_bytes;
985};
986#endif
987
988/*
989 * iwl_switch_rxon: "channel switch" structure
990 *
991 * @ switch_in_progress: channel switch in progress
992 * @ channel: new channel
993 */
994struct iwl_switch_rxon {
995	bool switch_in_progress;
996	__le16 channel;
997};
998
999struct iwl_priv {
1000
1001	/* ieee device used by generic ieee processing code */
1002	struct ieee80211_hw *hw;
1003	struct ieee80211_channel *ieee_channels;
1004	struct ieee80211_rate *ieee_rates;
1005	struct iwl_cfg *cfg;
1006
1007	/* temporary frame storage list */
1008	struct list_head free_frames;
1009	int frames_count;
1010
1011	enum ieee80211_band band;
1012	int alloc_rxb_page;
1013
1014	void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv,
1015				       struct iwl_rx_mem_buffer *rxb);
1016
1017	struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
1018
1019#if defined(CONFIG_IWLWIFI_SPECTRUM_MEASUREMENT) || defined(CONFIG_IWL3945_SPECTRUM_MEASUREMENT)
1020	/* spectrum measurement report caching */
1021	struct iwl_spectrum_notification measure_report;
1022	u8 measurement_status;
1023#endif
1024	/* ucode beacon time */
1025	u32 ucode_beacon_time;
1026
1027	/* we allocate array of iwl4965_channel_info for NIC's valid channels.
1028	 *    Access via channel # using indirect index array */
1029	struct iwl_channel_info *channel_info;	/* channel info array */
1030	u8 channel_count;	/* # of channels */
1031
1032	/* each calibration channel group in the EEPROM has a derived
1033	 * clip setting for each rate. 3945 only.*/
1034	const struct iwl3945_clip_group clip39_groups[5];
1035
1036	/* thermal calibration */
1037	s32 temperature;	/* degrees Kelvin */
1038	s32 last_temperature;
1039
1040	/* init calibration results */
1041	struct iwl_calib_result calib_results[IWL_CALIB_MAX];
1042
1043	/* Scan related variables */
1044	unsigned long last_scan_jiffies;
1045	unsigned long next_scan_jiffies;
1046	unsigned long scan_start;
1047	unsigned long scan_pass_start;
1048	unsigned long scan_start_tsf;
1049	void *scan;
1050	int scan_bands;
1051	struct cfg80211_scan_request *scan_request;
1052	u8 scan_tx_ant[IEEE80211_NUM_BANDS];
1053	u8 mgmt_tx_ant;
1054
1055	/* spinlock */
1056	spinlock_t lock;	/* protect general shared data */
1057	spinlock_t hcmd_lock;	/* protect hcmd */
1058	spinlock_t reg_lock;	/* protect hw register access */
1059	struct mutex mutex;
1060
1061	/* basic pci-network driver stuff */
1062	struct pci_dev *pci_dev;
1063
1064	/* pci hardware address support */
1065	void __iomem *hw_base;
1066	u32  hw_rev;
1067	u32  hw_wa_rev;
1068	u8   rev_id;
1069
1070	/* uCode images, save to reload in case of failure */
1071	u32 ucode_ver;			/* version of ucode, copy of
1072					   iwl_ucode.ver */
1073	struct fw_desc ucode_code;	/* runtime inst */
1074	struct fw_desc ucode_data;	/* runtime data original */
1075	struct fw_desc ucode_data_backup;	/* runtime data save/restore */
1076	struct fw_desc ucode_init;	/* initialization inst */
1077	struct fw_desc ucode_init_data;	/* initialization data */
1078	struct fw_desc ucode_boot;	/* bootstrap inst */
1079	enum ucode_type ucode_type;
1080	u8 ucode_write_complete;	/* the image write is complete */
1081
1082
1083	struct iwl_rxon_time_cmd rxon_timing;
1084
1085	/* We declare this const so it can only be
1086	 * changed via explicit cast within the
1087	 * routines that actually update the physical
1088	 * hardware */
1089	const struct iwl_rxon_cmd active_rxon;
1090	struct iwl_rxon_cmd staging_rxon;
1091
1092	struct iwl_switch_rxon switch_rxon;
1093
1094	/* 1st responses from initialize and runtime uCode images.
1095	 * 4965's initialize alive response contains some calibration data. */
1096	struct iwl_init_alive_resp card_alive_init;
1097	struct iwl_alive_resp card_alive;
1098
1099	unsigned long last_blink_time;
1100	u8 last_blink_rate;
1101	u8 allow_blinking;
1102	u64 led_tpt;
1103
1104	u16 active_rate;
1105	u16 active_rate_basic;
1106
1107	u8 assoc_station_added;
1108	u8 start_calib;
1109	struct iwl_sensitivity_data sensitivity_data;
1110	struct iwl_chain_noise_data chain_noise_data;
1111	__le16 sensitivity_tbl[HD_TABLE_SIZE];
1112
1113	struct iwl_ht_config current_ht_config;
1114	u8 last_phy_res[100];
1115
1116	/* Rate scaling data */
1117	u8 retry_rate;
1118
1119	wait_queue_head_t wait_command_queue;
1120
1121	int activity_timer_active;
1122
1123	/* Rx and Tx DMA processing queues */
1124	struct iwl_rx_queue rxq;
1125	struct iwl_tx_queue *txq;
1126	unsigned long txq_ctx_active_msk;
1127	struct iwl_dma_ptr  kw;	/* keep warm address */
1128	struct iwl_dma_ptr  scd_bc_tbls;
1129
1130	u32 scd_base_addr;	/* scheduler sram base address */
1131
1132	unsigned long status;
1133
1134	int last_rx_rssi;	/* From Rx packet statistics */
1135	int last_rx_noise;	/* From beacon statistics */
1136
1137	/* counts mgmt, ctl, and data packets */
1138	struct traffic_stats tx_stats;
1139	struct traffic_stats rx_stats;
1140
1141	/* counts interrupts */
1142	struct isr_statistics isr_stats;
1143
1144	struct iwl_power_mgr power_data;
1145	struct iwl_tt_mgmt thermal_throttle;
1146
1147	struct iwl_notif_statistics statistics;
1148#ifdef CONFIG_IWLWIFI_DEBUG
1149	struct iwl_notif_statistics accum_statistics;
1150#endif
1151
1152	/* context information */
1153	u16 rates_mask;
1154
1155	u8 bssid[ETH_ALEN];
1156	u16 rts_threshold;
1157	u8 mac_addr[ETH_ALEN];
1158
1159	/*station table variables */
1160	spinlock_t sta_lock;
1161	int num_stations;
1162	struct iwl_station_entry stations[IWL_STATION_COUNT];
1163	struct iwl_wep_key wep_keys[WEP_KEYS_MAX];
1164	u8 default_wep_key;
1165	u8 key_mapping_key;
1166	unsigned long ucode_key_table;
1167
1168	/* queue refcounts */
1169#define IWL_MAX_HW_QUEUES	32
1170	unsigned long queue_stopped[BITS_TO_LONGS(IWL_MAX_HW_QUEUES)];
1171	/* for each AC */
1172	atomic_t queue_stop_count[4];
1173
1174	/* Indication if ieee80211_ops->open has been called */
1175	u8 is_open;
1176
1177	u8 mac80211_registered;
1178
1179	/* Rx'd packet timing information */
1180	u32 last_beacon_time;
1181	u64 last_tsf;
1182
1183	/* eeprom */
1184	u8 *eeprom;
1185	int    nvm_device_type;
1186	struct iwl_eeprom_calib_info *calib_info;
1187
1188	enum nl80211_iftype iw_mode;
1189
1190	struct sk_buff *ibss_beacon;
1191
1192	/* Last Rx'd beacon timestamp */
1193	u64 timestamp;
1194	u16 beacon_int;
1195	struct ieee80211_vif *vif;
1196
1197	/*Added for 3945 */
1198	void *shared_virt;
1199	dma_addr_t shared_phys;
1200	/*End*/
1201	struct iwl_hw_params hw_params;
1202
1203	/* INT ICT Table */
1204	__le32 *ict_tbl;
1205	dma_addr_t ict_tbl_dma;
1206	dma_addr_t aligned_ict_tbl_dma;
1207	int ict_index;
1208	void *ict_tbl_vir;
1209	u32 inta;
1210	bool use_ict;
1211
1212	u32 inta_mask;
1213	/* Current association information needed to configure the
1214	 * hardware */
1215	u16 assoc_id;
1216	u16 assoc_capability;
1217
1218	struct iwl_qos_info qos_data;
1219
1220	struct workqueue_struct *workqueue;
1221
1222	struct work_struct up;
1223	struct work_struct restart;
1224	struct work_struct calibrated_work;
1225	struct work_struct scan_completed;
1226	struct work_struct rx_replenish;
1227	struct work_struct abort_scan;
1228	struct work_struct update_link_led;
1229	struct work_struct auth_work;
1230	struct work_struct report_work;
1231	struct work_struct request_scan;
1232	struct work_struct beacon_update;
1233	struct work_struct tt_work;
1234	struct work_struct ct_enter;
1235	struct work_struct ct_exit;
1236
1237	struct tasklet_struct irq_tasklet;
1238
1239	struct delayed_work init_alive_start;
1240	struct delayed_work alive_start;
1241	struct delayed_work scan_check;
1242
1243	/*For 3945 only*/
1244	struct delayed_work thermal_periodic;
1245	struct delayed_work rfkill_poll;
1246
1247	/* TX Power */
1248	s8 tx_power_user_lmt;
1249	s8 tx_power_device_lmt;
1250
1251
1252#ifdef CONFIG_IWLWIFI_DEBUG
1253	/* debugging info */
1254	u32 debug_level; /* per device debugging will override global
1255			    iwl_debug_level if set */
1256	u32 framecnt_to_us;
1257	atomic_t restrict_refcnt;
1258	bool disable_ht40;
1259#ifdef CONFIG_IWLWIFI_DEBUGFS
1260	/* debugfs */
1261	u16 tx_traffic_idx;
1262	u16 rx_traffic_idx;
1263	u8 *tx_traffic;
1264	u8 *rx_traffic;
1265	struct iwl_debugfs *dbgfs;
1266#endif /* CONFIG_IWLWIFI_DEBUGFS */
1267#endif /* CONFIG_IWLWIFI_DEBUG */
1268
1269	struct work_struct txpower_work;
1270	u32 disable_sens_cal;
1271	u32 disable_chain_noise_cal;
1272	u32 disable_tx_power_cal;
1273	struct work_struct run_time_calib_work;
1274	struct timer_list statistics_periodic;
1275	bool hw_ready;
1276	/*For 3945*/
1277#define IWL_DEFAULT_TX_POWER 0x0F
1278
1279	struct iwl3945_notif_statistics statistics_39;
1280
1281	u32 sta_supp_rates;
1282}; /*iwl_priv */
1283
1284static inline void iwl_txq_ctx_activate(struct iwl_priv *priv, int txq_id)
1285{
1286	set_bit(txq_id, &priv->txq_ctx_active_msk);
1287}
1288
1289static inline void iwl_txq_ctx_deactivate(struct iwl_priv *priv, int txq_id)
1290{
1291	clear_bit(txq_id, &priv->txq_ctx_active_msk);
1292}
1293
1294#ifdef CONFIG_IWLWIFI_DEBUG
1295const char *iwl_get_tx_fail_reason(u32 status);
1296/*
1297 * iwl_get_debug_level: Return active debug level for device
1298 *
1299 * Using sysfs it is possible to set per device debug level. This debug
1300 * level will be used if set, otherwise the global debug level which can be
1301 * set via module parameter is used.
1302 */
1303static inline u32 iwl_get_debug_level(struct iwl_priv *priv)
1304{
1305	if (priv->debug_level)
1306		return priv->debug_level;
1307	else
1308		return iwl_debug_level;
1309}
1310#else
1311static inline const char *iwl_get_tx_fail_reason(u32 status) { return ""; }
1312
1313static inline u32 iwl_get_debug_level(struct iwl_priv *priv)
1314{
1315	return iwl_debug_level;
1316}
1317#endif
1318
1319
1320static inline struct ieee80211_hdr *iwl_tx_queue_get_hdr(struct iwl_priv *priv,
1321							 int txq_id, int idx)
1322{
1323	if (priv->txq[txq_id].txb[idx].skb[0])
1324		return (struct ieee80211_hdr *)priv->txq[txq_id].
1325				txb[idx].skb[0]->data;
1326	return NULL;
1327}
1328
1329
1330static inline int iwl_is_associated(struct iwl_priv *priv)
1331{
1332	return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
1333}
1334
1335static inline int is_channel_valid(const struct iwl_channel_info *ch_info)
1336{
1337	if (ch_info == NULL)
1338		return 0;
1339	return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
1340}
1341
1342static inline int is_channel_radar(const struct iwl_channel_info *ch_info)
1343{
1344	return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
1345}
1346
1347static inline u8 is_channel_a_band(const struct iwl_channel_info *ch_info)
1348{
1349	return ch_info->band == IEEE80211_BAND_5GHZ;
1350}
1351
1352static inline u8 is_channel_bg_band(const struct iwl_channel_info *ch_info)
1353{
1354	return ch_info->band == IEEE80211_BAND_2GHZ;
1355}
1356
1357static inline int is_channel_passive(const struct iwl_channel_info *ch)
1358{
1359	return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
1360}
1361
1362static inline int is_channel_ibss(const struct iwl_channel_info *ch)
1363{
1364	return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
1365}
1366
1367#endif				/* __iwl_dev_h__ */
1368