iwl-dev.h revision 5953a62e7df064a5d7ba7e790d590f27c65ddf4c 
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-3945-led.h"
47#include "iwl-led.h"
48#include "iwl-power.h"
49#include "iwl-agn-rs.h"
50
51/* configuration for the iwl4965 */
52extern struct iwl_cfg iwl4965_agn_cfg;
53extern struct iwl_cfg iwl5300_agn_cfg;
54extern struct iwl_cfg iwl5100_agn_cfg;
55extern struct iwl_cfg iwl5350_agn_cfg;
56extern struct iwl_cfg iwl5100_bg_cfg;
57extern struct iwl_cfg iwl5100_abg_cfg;
58extern struct iwl_cfg iwl5150_agn_cfg;
59extern struct iwl_cfg iwl6000h_2agn_cfg;
60extern struct iwl_cfg iwl6000h_2abg_cfg;
61extern struct iwl_cfg iwl6000h_2bg_cfg;
62extern struct iwl_cfg iwl6000i_2agn_cfg;
63extern struct iwl_cfg iwl6000i_2abg_cfg;
64extern struct iwl_cfg iwl6000i_2bg_cfg;
65extern struct iwl_cfg iwl6000_3agn_cfg;
66extern struct iwl_cfg iwl6050_2agn_cfg;
67extern struct iwl_cfg iwl6050_2abg_cfg;
68extern struct iwl_cfg iwl6050_3agn_cfg;
69extern struct iwl_cfg iwl1000_bgn_cfg;
70extern struct iwl_cfg iwl1000_bg_cfg;
71
72struct iwl_tx_queue;
73
74/* shared structures from iwl-5000.c */
75extern struct iwl_mod_params iwl50_mod_params;
76extern struct iwl_ops iwl5000_ops;
77extern struct iwl_ucode_ops iwl5000_ucode;
78extern struct iwl_lib_ops iwl5000_lib;
79extern struct iwl_hcmd_ops iwl5000_hcmd;
80extern struct iwl_hcmd_utils_ops iwl5000_hcmd_utils;
81
82/* shared functions from iwl-5000.c */
83extern u16 iwl5000_get_hcmd_size(u8 cmd_id, u16 len);
84extern u16 iwl5000_build_addsta_hcmd(const struct iwl_addsta_cmd *cmd,
85				     u8 *data);
86extern void iwl5000_rts_tx_cmd_flag(struct ieee80211_tx_info *info,
87				    __le32 *tx_flags);
88extern int iwl5000_calc_rssi(struct iwl_priv *priv,
89			     struct iwl_rx_phy_res *rx_resp);
90extern int iwl5000_apm_init(struct iwl_priv *priv);
91extern void iwl5000_apm_stop(struct iwl_priv *priv);
92extern int iwl5000_apm_reset(struct iwl_priv *priv);
93extern void iwl5000_nic_config(struct iwl_priv *priv);
94extern u16 iwl5000_eeprom_calib_version(struct iwl_priv *priv);
95extern const u8 *iwl5000_eeprom_query_addr(const struct iwl_priv *priv,
96				    size_t offset);
97extern void iwl5000_txq_update_byte_cnt_tbl(struct iwl_priv *priv,
98					    struct iwl_tx_queue *txq,
99					    u16 byte_cnt);
100extern void iwl5000_txq_inval_byte_cnt_tbl(struct iwl_priv *priv,
101				    struct iwl_tx_queue *txq);
102extern int iwl5000_load_ucode(struct iwl_priv *priv);
103extern void iwl5000_init_alive_start(struct iwl_priv *priv);
104extern int iwl5000_alive_notify(struct iwl_priv *priv);
105extern int iwl5000_hw_set_hw_params(struct iwl_priv *priv);
106extern int iwl5000_txq_agg_enable(struct iwl_priv *priv, int txq_id,
107			   int tx_fifo, int sta_id, int tid, u16 ssn_idx);
108extern int iwl5000_txq_agg_disable(struct iwl_priv *priv, u16 txq_id,
109			    u16 ssn_idx, u8 tx_fifo);
110extern void iwl5000_txq_set_sched(struct iwl_priv *priv, u32 mask);
111extern void iwl5000_setup_deferred_work(struct iwl_priv *priv);
112extern void iwl5000_rx_handler_setup(struct iwl_priv *priv);
113extern int iwl5000_hw_valid_rtc_data_addr(u32 addr);
114extern int iwl5000_send_tx_power(struct iwl_priv *priv);
115extern void iwl5000_temperature(struct iwl_priv *priv);
116
117/* CT-KILL constants */
118#define CT_KILL_THRESHOLD_LEGACY   110 /* in Celsius */
119#define CT_KILL_THRESHOLD	   114 /* in Celsius */
120#define CT_KILL_EXIT_THRESHOLD     95  /* in Celsius */
121
122/* Default noise level to report when noise measurement is not available.
123 *   This may be because we're:
124 *   1)  Not associated (4965, no beacon statistics being sent to driver)
125 *   2)  Scanning (noise measurement does not apply to associated channel)
126 *   3)  Receiving CCK (3945 delivers noise info only for OFDM frames)
127 * Use default noise value of -127 ... this is below the range of measurable
128 *   Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
129 *   Also, -127 works better than 0 when averaging frames with/without
130 *   noise info (e.g. averaging might be done in app); measured dBm values are
131 *   always negative ... using a negative value as the default keeps all
132 *   averages within an s8's (used in some apps) range of negative values. */
133#define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
134
135/*
136 * RTS threshold here is total size [2347] minus 4 FCS bytes
137 * Per spec:
138 *   a value of 0 means RTS on all data/management packets
139 *   a value > max MSDU size means no RTS
140 * else RTS for data/management frames where MPDU is larger
141 *   than RTS value.
142 */
143#define DEFAULT_RTS_THRESHOLD     2347U
144#define MIN_RTS_THRESHOLD         0U
145#define MAX_RTS_THRESHOLD         2347U
146#define MAX_MSDU_SIZE		  2304U
147#define MAX_MPDU_SIZE		  2346U
148#define DEFAULT_BEACON_INTERVAL   100U
149#define	DEFAULT_SHORT_RETRY_LIMIT 7U
150#define	DEFAULT_LONG_RETRY_LIMIT  4U
151
152struct iwl_rx_mem_buffer {
153	dma_addr_t real_dma_addr;
154	dma_addr_t aligned_dma_addr;
155	struct sk_buff *skb;
156	struct list_head list;
157};
158
159/* defined below */
160struct iwl_device_cmd;
161
162struct iwl_cmd_meta {
163	/* only for SYNC commands, iff the reply skb is wanted */
164	struct iwl_host_cmd *source;
165	/*
166	 * only for ASYNC commands
167	 * (which is somewhat stupid -- look at iwl-sta.c for instance
168	 * which duplicates a bunch of code because the callback isn't
169	 * invoked for SYNC commands, if it were and its result passed
170	 * through it would be simpler...)
171	 */
172	void (*callback)(struct iwl_priv *priv,
173			 struct iwl_device_cmd *cmd,
174			 struct sk_buff *skb);
175
176	/* The CMD_SIZE_HUGE flag bit indicates that the command
177	 * structure is stored at the end of the shared queue memory. */
178	u32 flags;
179
180	DECLARE_PCI_UNMAP_ADDR(mapping)
181	DECLARE_PCI_UNMAP_LEN(len)
182};
183
184/*
185 * Generic queue structure
186 *
187 * Contains common data for Rx and Tx queues
188 */
189struct iwl_queue {
190	int n_bd;              /* number of BDs in this queue */
191	int write_ptr;       /* 1-st empty entry (index) host_w*/
192	int read_ptr;         /* last used entry (index) host_r*/
193	dma_addr_t dma_addr;   /* physical addr for BD's */
194	int n_window;	       /* safe queue window */
195	u32 id;
196	int low_mark;	       /* low watermark, resume queue if free
197				* space more than this */
198	int high_mark;         /* high watermark, stop queue if free
199				* space less than this */
200} __attribute__ ((packed));
201
202/* One for each TFD */
203struct iwl_tx_info {
204	struct sk_buff *skb[IWL_NUM_OF_TBS - 1];
205};
206
207/**
208 * struct iwl_tx_queue - Tx Queue for DMA
209 * @q: generic Rx/Tx queue descriptor
210 * @bd: base of circular buffer of TFDs
211 * @cmd: array of command/TX buffer pointers
212 * @meta: array of meta data for each command/tx buffer
213 * @dma_addr_cmd: physical address of cmd/tx buffer array
214 * @txb: array of per-TFD driver data
215 * @need_update: indicates need to update read/write index
216 * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
217 *
218 * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
219 * descriptors) and required locking structures.
220 */
221#define TFD_TX_CMD_SLOTS 256
222#define TFD_CMD_SLOTS 32
223
224struct iwl_tx_queue {
225	struct iwl_queue q;
226	void *tfds;
227	struct iwl_device_cmd **cmd;
228	struct iwl_cmd_meta *meta;
229	struct iwl_tx_info *txb;
230	u8 need_update;
231	u8 sched_retry;
232	u8 active;
233	u8 swq_id;
234};
235
236#define IWL_NUM_SCAN_RATES         (2)
237
238struct iwl4965_channel_tgd_info {
239	u8 type;
240	s8 max_power;
241};
242
243struct iwl4965_channel_tgh_info {
244	s64 last_radar_time;
245};
246
247#define IWL4965_MAX_RATE (33)
248
249struct iwl3945_clip_group {
250	/* maximum power level to prevent clipping for each rate, derived by
251	 *   us from this band's saturation power in EEPROM */
252	const s8 clip_powers[IWL_MAX_RATES];
253};
254
255/* current Tx power values to use, one for each rate for each channel.
256 * requested power is limited by:
257 * -- regulatory EEPROM limits for this channel
258 * -- hardware capabilities (clip-powers)
259 * -- spectrum management
260 * -- user preference (e.g. iwconfig)
261 * when requested power is set, base power index must also be set. */
262struct iwl3945_channel_power_info {
263	struct iwl3945_tx_power tpc;	/* actual radio and DSP gain settings */
264	s8 power_table_index;	/* actual (compenst'd) index into gain table */
265	s8 base_power_index;	/* gain index for power at factory temp. */
266	s8 requested_power;	/* power (dBm) requested for this chnl/rate */
267};
268
269/* current scan Tx power values to use, one for each scan rate for each
270 * channel. */
271struct iwl3945_scan_power_info {
272	struct iwl3945_tx_power tpc;	/* actual radio and DSP gain settings */
273	s8 power_table_index;	/* actual (compenst'd) index into gain table */
274	s8 requested_power;	/* scan pwr (dBm) requested for chnl/rate */
275};
276
277/*
278 * One for each channel, holds all channel setup data
279 * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
280 *     with one another!
281 */
282struct iwl_channel_info {
283	struct iwl4965_channel_tgd_info tgd;
284	struct iwl4965_channel_tgh_info tgh;
285	struct iwl_eeprom_channel eeprom;	/* EEPROM regulatory limit */
286	struct iwl_eeprom_channel ht40_eeprom;	/* EEPROM regulatory limit for
287						 * HT40 channel */
288
289	u8 channel;	  /* channel number */
290	u8 flags;	  /* flags copied from EEPROM */
291	s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
292	s8 curr_txpow;	  /* (dBm) regulatory/spectrum/user (not h/w) limit */
293	s8 min_power;	  /* always 0 */
294	s8 scan_power;	  /* (dBm) regul. eeprom, direct scans, any rate */
295
296	u8 group_index;	  /* 0-4, maps channel to group1/2/3/4/5 */
297	u8 band_index;	  /* 0-4, maps channel to band1/2/3/4/5 */
298	enum ieee80211_band band;
299
300	/* HT40 channel info */
301	s8 ht40_max_power_avg;	/* (dBm) regul. eeprom, normal Tx, any rate */
302	s8 ht40_curr_txpow;	/* (dBm) regulatory/spectrum/user (not h/w) */
303	s8 ht40_min_power;	/* always 0 */
304	s8 ht40_scan_power;	/* (dBm) eeprom, direct scans, any rate */
305	u8 ht40_flags;		/* flags copied from EEPROM */
306	u8 ht40_extension_channel; /* HT_IE_EXT_CHANNEL_* */
307
308	/* Radio/DSP gain settings for each "normal" data Tx rate.
309	 * These include, in addition to RF and DSP gain, a few fields for
310	 *   remembering/modifying gain settings (indexes). */
311	struct iwl3945_channel_power_info power_info[IWL4965_MAX_RATE];
312
313	/* Radio/DSP gain settings for each scan rate, for directed scans. */
314	struct iwl3945_scan_power_info scan_pwr_info[IWL_NUM_SCAN_RATES];
315};
316
317#define IWL_TX_FIFO_AC0	0
318#define IWL_TX_FIFO_AC1	1
319#define IWL_TX_FIFO_AC2	2
320#define IWL_TX_FIFO_AC3	3
321#define IWL_TX_FIFO_HCCA_1	5
322#define IWL_TX_FIFO_HCCA_2	6
323#define IWL_TX_FIFO_NONE	7
324
325/* Minimum number of queues. MAX_NUM is defined in hw specific files.
326 * Set the minimum to accommodate the 4 standard TX queues, 1 command
327 * queue, 2 (unused) HCCA queues, and 4 HT queues (one for each AC) */
328#define IWL_MIN_NUM_QUEUES	10
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 IWL_CMD_MAX_PAYLOAD 320
366
367/**
368 * struct iwl_device_cmd
369 *
370 * For allocation of the command and tx queues, this establishes the overall
371 * size of the largest command we send to uCode, except for a scan command
372 * (which is relatively huge; space is allocated separately).
373 */
374struct iwl_device_cmd {
375	struct iwl_cmd_header hdr;	/* uCode API */
376	union {
377		u32 flags;
378		u8 val8;
379		u16 val16;
380		u32 val32;
381		struct iwl_tx_cmd tx;
382		u8 payload[IWL_CMD_MAX_PAYLOAD];
383	} __attribute__ ((packed)) cmd;
384} __attribute__ ((packed));
385
386#define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_device_cmd))
387
388
389struct iwl_host_cmd {
390	const void *data;
391	struct sk_buff *reply_skb;
392	void (*callback)(struct iwl_priv *priv,
393			 struct iwl_device_cmd *cmd,
394			 struct sk_buff *skb);
395	u32 flags;
396	u16 len;
397	u8 id;
398};
399
400/*
401 * RX related structures and functions
402 */
403#define RX_FREE_BUFFERS 64
404#define RX_LOW_WATERMARK 8
405
406#define SUP_RATE_11A_MAX_NUM_CHANNELS  8
407#define SUP_RATE_11B_MAX_NUM_CHANNELS  4
408#define SUP_RATE_11G_MAX_NUM_CHANNELS  12
409
410/**
411 * struct iwl_rx_queue - Rx queue
412 * @bd: driver's pointer to buffer of receive buffer descriptors (rbd)
413 * @dma_addr: bus address of buffer of receive buffer descriptors (rbd)
414 * @read: Shared index to newest available Rx buffer
415 * @write: Shared index to oldest written Rx packet
416 * @free_count: Number of pre-allocated buffers in rx_free
417 * @rx_free: list of free SKBs for use
418 * @rx_used: List of Rx buffers with no SKB
419 * @need_update: flag to indicate we need to update read/write index
420 * @rb_stts: driver's pointer to receive buffer status
421 * @rb_stts_dma: bus address of receive buffer status
422 *
423 * NOTE:  rx_free and rx_used are used as a FIFO for iwl_rx_mem_buffers
424 */
425struct iwl_rx_queue {
426	__le32 *bd;
427	dma_addr_t dma_addr;
428	struct iwl_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
429	struct iwl_rx_mem_buffer *queue[RX_QUEUE_SIZE];
430	u32 read;
431	u32 write;
432	u32 free_count;
433	u32 write_actual;
434	struct list_head rx_free;
435	struct list_head rx_used;
436	int need_update;
437	struct iwl_rb_status *rb_stts;
438	dma_addr_t rb_stts_dma;
439	spinlock_t lock;
440};
441
442#define IWL_SUPPORTED_RATES_IE_LEN         8
443
444#define MAX_TID_COUNT        9
445
446#define IWL_INVALID_RATE     0xFF
447#define IWL_INVALID_VALUE    -1
448
449/**
450 * struct iwl_ht_agg -- aggregation status while waiting for block-ack
451 * @txq_id: Tx queue used for Tx attempt
452 * @frame_count: # frames attempted by Tx command
453 * @wait_for_ba: Expect block-ack before next Tx reply
454 * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window
455 * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window
456 * @bitmap1: High order, one bit for each frame pending ACK in Tx window
457 * @rate_n_flags: Rate at which Tx was attempted
458 *
459 * If REPLY_TX indicates that aggregation was attempted, driver must wait
460 * for block ack (REPLY_COMPRESSED_BA).  This struct stores tx reply info
461 * until block ack arrives.
462 */
463struct iwl_ht_agg {
464	u16 txq_id;
465	u16 frame_count;
466	u16 wait_for_ba;
467	u16 start_idx;
468	u64 bitmap;
469	u32 rate_n_flags;
470#define IWL_AGG_OFF 0
471#define IWL_AGG_ON 1
472#define IWL_EMPTYING_HW_QUEUE_ADDBA 2
473#define IWL_EMPTYING_HW_QUEUE_DELBA 3
474	u8 state;
475};
476
477
478struct iwl_tid_data {
479	u16 seq_number;
480	u16 tfds_in_queue;
481	struct iwl_ht_agg agg;
482};
483
484struct iwl_hw_key {
485	enum ieee80211_key_alg alg;
486	int keylen;
487	u8 keyidx;
488	u8 key[32];
489};
490
491union iwl_ht_rate_supp {
492	u16 rates;
493	struct {
494		u8 siso_rate;
495		u8 mimo_rate;
496	};
497};
498
499#define CFG_HT_RX_AMPDU_FACTOR_DEF  (0x3)
500
501/*
502 * Maximal MPDU density for TX aggregation
503 * 4 - 2us density
504 * 5 - 4us density
505 * 6 - 8us density
506 * 7 - 16us density
507 */
508#define CFG_HT_MPDU_DENSITY_4USEC   (0x5)
509#define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_4USEC
510
511struct iwl_ht_config {
512	/* self configuration data */
513	bool is_ht;
514	bool is_40mhz;
515	bool single_chain_sufficient;
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
549#define STA_PS_STATUS_WAKE             0
550#define STA_PS_STATUS_SLEEP            1
551
552
553struct iwl3945_station_entry {
554	struct iwl3945_addsta_cmd sta;
555	struct iwl_tid_data tid[MAX_TID_COUNT];
556	u8 used;
557	u8 ps_status;
558	struct iwl_hw_key keyinfo;
559};
560
561struct iwl_station_entry {
562	struct iwl_addsta_cmd sta;
563	struct iwl_tid_data tid[MAX_TID_COUNT];
564	u8 used;
565	u8 ps_status;
566	struct iwl_hw_key keyinfo;
567};
568
569/* one for each uCode image (inst/data, boot/init/runtime) */
570struct fw_desc {
571	void *v_addr;		/* access by driver */
572	dma_addr_t p_addr;	/* access by card's busmaster DMA */
573	u32 len;		/* bytes */
574};
575
576/* uCode file layout */
577struct iwl_ucode_header {
578	__le32 ver;	/* major/minor/API/serial */
579	union {
580		struct {
581			__le32 inst_size;	/* bytes of runtime code */
582			__le32 data_size;	/* bytes of runtime data */
583			__le32 init_size;	/* bytes of init code */
584			__le32 init_data_size;	/* bytes of init data */
585			__le32 boot_size;	/* bytes of bootstrap code */
586			u8 data[0];		/* in same order as sizes */
587		} v1;
588		struct {
589			__le32 build;		/* build number */
590			__le32 inst_size;	/* bytes of runtime code */
591			__le32 data_size;	/* bytes of runtime data */
592			__le32 init_size;	/* bytes of init code */
593			__le32 init_data_size;	/* bytes of init data */
594			__le32 boot_size;	/* bytes of bootstrap code */
595			u8 data[0];		/* in same order as sizes */
596		} v2;
597	} u;
598};
599#define UCODE_HEADER_SIZE(ver) ((ver) == 1 ? 24 : 28)
600
601struct iwl4965_ibss_seq {
602	u8 mac[ETH_ALEN];
603	u16 seq_num;
604	u16 frag_num;
605	unsigned long packet_time;
606	struct list_head list;
607};
608
609struct iwl_sensitivity_ranges {
610	u16 min_nrg_cck;
611	u16 max_nrg_cck;
612
613	u16 nrg_th_cck;
614	u16 nrg_th_ofdm;
615
616	u16 auto_corr_min_ofdm;
617	u16 auto_corr_min_ofdm_mrc;
618	u16 auto_corr_min_ofdm_x1;
619	u16 auto_corr_min_ofdm_mrc_x1;
620
621	u16 auto_corr_max_ofdm;
622	u16 auto_corr_max_ofdm_mrc;
623	u16 auto_corr_max_ofdm_x1;
624	u16 auto_corr_max_ofdm_mrc_x1;
625
626	u16 auto_corr_max_cck;
627	u16 auto_corr_max_cck_mrc;
628	u16 auto_corr_min_cck;
629	u16 auto_corr_min_cck_mrc;
630};
631
632
633#define KELVIN_TO_CELSIUS(x) ((x)-273)
634#define CELSIUS_TO_KELVIN(x) ((x)+273)
635
636
637/**
638 * struct iwl_hw_params
639 * @max_txq_num: Max # Tx queues supported
640 * @dma_chnl_num: Number of Tx DMA/FIFO channels
641 * @scd_bc_tbls_size: size of scheduler byte count tables
642 * @tfd_size: TFD size
643 * @tx/rx_chains_num: Number of TX/RX chains
644 * @valid_tx/rx_ant: usable antennas
645 * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
646 * @max_rxq_log: Log-base-2 of max_rxq_size
647 * @rx_buf_size: Rx buffer size
648 * @rx_wrt_ptr_reg: FH{39}_RSCSR_CHNL0_WPTR
649 * @max_stations:
650 * @bcast_sta_id:
651 * @ht40_channel: is 40MHz width possible in band 2.4
652 * BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ)
653 * @sw_crypto: 0 for hw, 1 for sw
654 * @max_xxx_size: for ucode uses
655 * @ct_kill_threshold: temperature threshold
656 * @calib_init_cfg: setup initial calibrations for the hw
657 * @struct iwl_sensitivity_ranges: range of sensitivity values
658 */
659struct iwl_hw_params {
660	u8 max_txq_num;
661	u8 dma_chnl_num;
662	u16 scd_bc_tbls_size;
663	u32 tfd_size;
664	u8  tx_chains_num;
665	u8  rx_chains_num;
666	u8  valid_tx_ant;
667	u8  valid_rx_ant;
668	u16 max_rxq_size;
669	u16 max_rxq_log;
670	u32 rx_buf_size;
671	u32 rx_wrt_ptr_reg;
672	u32 max_pkt_size;
673	u8  max_stations;
674	u8  bcast_sta_id;
675	u8  ht40_channel;
676	u8  max_beacon_itrvl;	/* in 1024 ms */
677	u32 max_inst_size;
678	u32 max_data_size;
679	u32 max_bsm_size;
680	u32 ct_kill_threshold; /* value in hw-dependent units */
681	u32 ct_kill_exit_threshold; /* value in hw-dependent units */
682				    /* for 1000, 6000 series and up */
683	u32 calib_init_cfg;
684	const struct iwl_sensitivity_ranges *sens;
685};
686
687
688/******************************************************************************
689 *
690 * Functions implemented in core module which are forward declared here
691 * for use by iwl-[4-5].c
692 *
693 * NOTE:  The implementation of these functions are not hardware specific
694 * which is why they are in the core module files.
695 *
696 * Naming convention --
697 * iwl_         <-- Is part of iwlwifi
698 * iwlXXXX_     <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
699 * iwl4965_bg_      <-- Called from work queue context
700 * iwl4965_mac_     <-- mac80211 callback
701 *
702 ****************************************************************************/
703extern void iwl_update_chain_flags(struct iwl_priv *priv);
704extern int iwl_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src);
705extern const u8 iwl_bcast_addr[ETH_ALEN];
706extern int iwl_rxq_stop(struct iwl_priv *priv);
707extern void iwl_txq_ctx_stop(struct iwl_priv *priv);
708extern int iwl_queue_space(const struct iwl_queue *q);
709static inline int iwl_queue_used(const struct iwl_queue *q, int i)
710{
711	return q->write_ptr > q->read_ptr ?
712		(i >= q->read_ptr && i < q->write_ptr) :
713		!(i < q->read_ptr && i >= q->write_ptr);
714}
715
716
717static inline u8 get_cmd_index(struct iwl_queue *q, u32 index, int is_huge)
718{
719	/* This is for scan command, the big buffer at end of command array */
720	if (is_huge)
721		return q->n_window;	/* must be power of 2 */
722
723	/* Otherwise, use normal size buffers */
724	return index & (q->n_window - 1);
725}
726
727
728struct iwl_dma_ptr {
729	dma_addr_t dma;
730	void *addr;
731	size_t size;
732};
733
734#define IWL_OPERATION_MODE_AUTO     0
735#define IWL_OPERATION_MODE_HT_ONLY  1
736#define IWL_OPERATION_MODE_MIXED    2
737#define IWL_OPERATION_MODE_20MHZ    3
738
739#define IWL_TX_CRC_SIZE 4
740#define IWL_TX_DELIMITER_SIZE 4
741
742#define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
743
744/* Sensitivity and chain noise calibration */
745#define INITIALIZATION_VALUE		0xFFFF
746#define CAL_NUM_OF_BEACONS		20
747#define MAXIMUM_ALLOWED_PATHLOSS	15
748
749#define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
750
751#define MAX_FA_OFDM  50
752#define MIN_FA_OFDM  5
753#define MAX_FA_CCK   50
754#define MIN_FA_CCK   5
755
756#define AUTO_CORR_STEP_OFDM       1
757
758#define AUTO_CORR_STEP_CCK     3
759#define AUTO_CORR_MAX_TH_CCK   160
760
761#define NRG_DIFF               2
762#define NRG_STEP_CCK           2
763#define NRG_MARGIN             8
764#define MAX_NUMBER_CCK_NO_FA 100
765
766#define AUTO_CORR_CCK_MIN_VAL_DEF    (125)
767
768#define CHAIN_A             0
769#define CHAIN_B             1
770#define CHAIN_C             2
771#define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
772#define ALL_BAND_FILTER			0xFF00
773#define IN_BAND_FILTER			0xFF
774#define MIN_AVERAGE_NOISE_MAX_VALUE	0xFFFFFFFF
775
776#define NRG_NUM_PREV_STAT_L     20
777#define NUM_RX_CHAINS           3
778
779enum iwl4965_false_alarm_state {
780	IWL_FA_TOO_MANY = 0,
781	IWL_FA_TOO_FEW = 1,
782	IWL_FA_GOOD_RANGE = 2,
783};
784
785enum iwl4965_chain_noise_state {
786	IWL_CHAIN_NOISE_ALIVE = 0,  /* must be 0 */
787	IWL_CHAIN_NOISE_ACCUMULATE,
788	IWL_CHAIN_NOISE_CALIBRATED,
789	IWL_CHAIN_NOISE_DONE,
790};
791
792enum iwl4965_calib_enabled_state {
793	IWL_CALIB_DISABLED = 0,  /* must be 0 */
794	IWL_CALIB_ENABLED = 1,
795};
796
797
798/*
799 * enum iwl_calib
800 * defines the order in which results of initial calibrations
801 * should be sent to the runtime uCode
802 */
803enum iwl_calib {
804	IWL_CALIB_XTAL,
805	IWL_CALIB_DC,
806	IWL_CALIB_LO,
807	IWL_CALIB_TX_IQ,
808	IWL_CALIB_TX_IQ_PERD,
809	IWL_CALIB_BASE_BAND,
810	IWL_CALIB_MAX
811};
812
813/* Opaque calibration results */
814struct iwl_calib_result {
815	void *buf;
816	size_t buf_len;
817};
818
819enum ucode_type {
820	UCODE_NONE = 0,
821	UCODE_INIT,
822	UCODE_RT
823};
824
825/* Sensitivity calib data */
826struct iwl_sensitivity_data {
827	u32 auto_corr_ofdm;
828	u32 auto_corr_ofdm_mrc;
829	u32 auto_corr_ofdm_x1;
830	u32 auto_corr_ofdm_mrc_x1;
831	u32 auto_corr_cck;
832	u32 auto_corr_cck_mrc;
833
834	u32 last_bad_plcp_cnt_ofdm;
835	u32 last_fa_cnt_ofdm;
836	u32 last_bad_plcp_cnt_cck;
837	u32 last_fa_cnt_cck;
838
839	u32 nrg_curr_state;
840	u32 nrg_prev_state;
841	u32 nrg_value[10];
842	u8  nrg_silence_rssi[NRG_NUM_PREV_STAT_L];
843	u32 nrg_silence_ref;
844	u32 nrg_energy_idx;
845	u32 nrg_silence_idx;
846	u32 nrg_th_cck;
847	s32 nrg_auto_corr_silence_diff;
848	u32 num_in_cck_no_fa;
849	u32 nrg_th_ofdm;
850};
851
852/* Chain noise (differential Rx gain) calib data */
853struct iwl_chain_noise_data {
854	u32 active_chains;
855	u32 chain_noise_a;
856	u32 chain_noise_b;
857	u32 chain_noise_c;
858	u32 chain_signal_a;
859	u32 chain_signal_b;
860	u32 chain_signal_c;
861	u16 beacon_count;
862	u8 disconn_array[NUM_RX_CHAINS];
863	u8 delta_gain_code[NUM_RX_CHAINS];
864	u8 radio_write;
865	u8 state;
866};
867
868#define	EEPROM_SEM_TIMEOUT 10		/* milliseconds */
869#define EEPROM_SEM_RETRY_LIMIT 1000	/* number of attempts (not time) */
870
871#define IWL_TRAFFIC_ENTRIES	(256)
872#define IWL_TRAFFIC_ENTRY_SIZE  (64)
873
874enum {
875	MEASUREMENT_READY = (1 << 0),
876	MEASUREMENT_ACTIVE = (1 << 1),
877};
878
879enum iwl_nvm_type {
880	NVM_DEVICE_TYPE_EEPROM = 0,
881	NVM_DEVICE_TYPE_OTP,
882};
883
884/*
885 * Two types of OTP memory access modes
886 *   IWL_OTP_ACCESS_ABSOLUTE - absolute address mode,
887 * 			        based on physical memory addressing
888 *   IWL_OTP_ACCESS_RELATIVE - relative address mode,
889 * 			       based on logical memory addressing
890 */
891enum iwl_access_mode {
892	IWL_OTP_ACCESS_ABSOLUTE,
893	IWL_OTP_ACCESS_RELATIVE,
894};
895
896/**
897 * enum iwl_pa_type - Power Amplifier type
898 * @IWL_PA_SYSTEM:  based on uCode configuration
899 * @IWL_PA_HYBRID: use both Internal and external PA
900 * @IWL_PA_INTERNAL: use Internal only
901 */
902enum iwl_pa_type {
903	IWL_PA_SYSTEM = 0,
904	IWL_PA_HYBRID = 1,
905	IWL_PA_INTERNAL = 2,
906};
907
908/* interrupt statistics */
909struct isr_statistics {
910	u32 hw;
911	u32 sw;
912	u32 sw_err;
913	u32 sch;
914	u32 alive;
915	u32 rfkill;
916	u32 ctkill;
917	u32 wakeup;
918	u32 rx;
919	u32 rx_handlers[REPLY_MAX];
920	u32 tx;
921	u32 unhandled;
922};
923
924#ifdef CONFIG_IWLWIFI_DEBUGFS
925/* management statistics */
926enum iwl_mgmt_stats {
927	MANAGEMENT_ASSOC_REQ = 0,
928	MANAGEMENT_ASSOC_RESP,
929	MANAGEMENT_REASSOC_REQ,
930	MANAGEMENT_REASSOC_RESP,
931	MANAGEMENT_PROBE_REQ,
932	MANAGEMENT_PROBE_RESP,
933	MANAGEMENT_BEACON,
934	MANAGEMENT_ATIM,
935	MANAGEMENT_DISASSOC,
936	MANAGEMENT_AUTH,
937	MANAGEMENT_DEAUTH,
938	MANAGEMENT_ACTION,
939	MANAGEMENT_MAX,
940};
941/* control statistics */
942enum iwl_ctrl_stats {
943	CONTROL_BACK_REQ =  0,
944	CONTROL_BACK,
945	CONTROL_PSPOLL,
946	CONTROL_RTS,
947	CONTROL_CTS,
948	CONTROL_ACK,
949	CONTROL_CFEND,
950	CONTROL_CFENDACK,
951	CONTROL_MAX,
952};
953
954struct traffic_stats {
955	u32 mgmt[MANAGEMENT_MAX];
956	u32 ctrl[CONTROL_MAX];
957	u32 data_cnt;
958	u64 data_bytes;
959};
960#else
961struct traffic_stats {
962	u64 data_bytes;
963};
964#endif
965
966#define IWL_MAX_NUM_QUEUES	20 /* FIXME: do dynamic allocation */
967
968struct iwl_priv {
969
970	/* ieee device used by generic ieee processing code */
971	struct ieee80211_hw *hw;
972	struct ieee80211_channel *ieee_channels;
973	struct ieee80211_rate *ieee_rates;
974	struct iwl_cfg *cfg;
975
976	/* temporary frame storage list */
977	struct list_head free_frames;
978	int frames_count;
979
980	enum ieee80211_band band;
981	int alloc_rxb_skb;
982
983	void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv,
984				       struct iwl_rx_mem_buffer *rxb);
985
986	struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
987
988#if defined(CONFIG_IWLWIFI_SPECTRUM_MEASUREMENT) || defined(CONFIG_IWL3945_SPECTRUM_MEASUREMENT)
989	/* spectrum measurement report caching */
990	struct iwl_spectrum_notification measure_report;
991	u8 measurement_status;
992#endif
993	/* ucode beacon time */
994	u32 ucode_beacon_time;
995
996	/* we allocate array of iwl4965_channel_info for NIC's valid channels.
997	 *    Access via channel # using indirect index array */
998	struct iwl_channel_info *channel_info;	/* channel info array */
999	u8 channel_count;	/* # of channels */
1000
1001	/* each calibration channel group in the EEPROM has a derived
1002	 * clip setting for each rate. 3945 only.*/
1003	const struct iwl3945_clip_group clip39_groups[5];
1004
1005	/* thermal calibration */
1006	s32 temperature;	/* degrees Kelvin */
1007	s32 last_temperature;
1008
1009	/* init calibration results */
1010	struct iwl_calib_result calib_results[IWL_CALIB_MAX];
1011
1012	/* Scan related variables */
1013	unsigned long last_scan_jiffies;
1014	unsigned long next_scan_jiffies;
1015	unsigned long scan_start;
1016	unsigned long scan_pass_start;
1017	unsigned long scan_start_tsf;
1018	void *scan;
1019	int scan_bands;
1020	struct cfg80211_scan_request *scan_request;
1021	u8 scan_tx_ant[IEEE80211_NUM_BANDS];
1022	u8 mgmt_tx_ant;
1023
1024	/* spinlock */
1025	spinlock_t lock;	/* protect general shared data */
1026	spinlock_t hcmd_lock;	/* protect hcmd */
1027	spinlock_t reg_lock;	/* protect hw register access */
1028	struct mutex mutex;
1029
1030	/* basic pci-network driver stuff */
1031	struct pci_dev *pci_dev;
1032
1033	/* pci hardware address support */
1034	void __iomem *hw_base;
1035	u32  hw_rev;
1036	u32  hw_wa_rev;
1037	u8   rev_id;
1038
1039	/* uCode images, save to reload in case of failure */
1040	u32 ucode_ver;			/* version of ucode, copy of
1041					   iwl_ucode.ver */
1042	struct fw_desc ucode_code;	/* runtime inst */
1043	struct fw_desc ucode_data;	/* runtime data original */
1044	struct fw_desc ucode_data_backup;	/* runtime data save/restore */
1045	struct fw_desc ucode_init;	/* initialization inst */
1046	struct fw_desc ucode_init_data;	/* initialization data */
1047	struct fw_desc ucode_boot;	/* bootstrap inst */
1048	enum ucode_type ucode_type;
1049	u8 ucode_write_complete;	/* the image write is complete */
1050
1051
1052	struct iwl_rxon_time_cmd rxon_timing;
1053
1054	/* We declare this const so it can only be
1055	 * changed via explicit cast within the
1056	 * routines that actually update the physical
1057	 * hardware */
1058	const struct iwl_rxon_cmd active_rxon;
1059	struct iwl_rxon_cmd staging_rxon;
1060
1061	struct iwl_rxon_cmd recovery_rxon;
1062
1063	/* 1st responses from initialize and runtime uCode images.
1064	 * 4965's initialize alive response contains some calibration data. */
1065	struct iwl_init_alive_resp card_alive_init;
1066	struct iwl_alive_resp card_alive;
1067
1068#ifdef CONFIG_IWLWIFI_LEDS
1069	unsigned long last_blink_time;
1070	u8 last_blink_rate;
1071	u8 allow_blinking;
1072	u64 led_tpt;
1073	struct iwl_led led[IWL_LED_TRG_MAX];
1074	unsigned int rxtxpackets;
1075#endif
1076	u16 active_rate;
1077	u16 active_rate_basic;
1078
1079	u8 assoc_station_added;
1080	u8 start_calib;
1081	struct iwl_sensitivity_data sensitivity_data;
1082	struct iwl_chain_noise_data chain_noise_data;
1083	__le16 sensitivity_tbl[HD_TABLE_SIZE];
1084
1085	struct iwl_ht_config current_ht_config;
1086	u8 last_phy_res[100];
1087
1088	/* Rate scaling data */
1089	s8 data_retry_limit;
1090	u8 retry_rate;
1091
1092	wait_queue_head_t wait_command_queue;
1093
1094	int activity_timer_active;
1095
1096	/* Rx and Tx DMA processing queues */
1097	struct iwl_rx_queue rxq;
1098	struct iwl_tx_queue txq[IWL_MAX_NUM_QUEUES];
1099	unsigned long txq_ctx_active_msk;
1100	struct iwl_dma_ptr  kw;	/* keep warm address */
1101	struct iwl_dma_ptr  scd_bc_tbls;
1102
1103	u32 scd_base_addr;	/* scheduler sram base address */
1104
1105	unsigned long status;
1106
1107	int last_rx_rssi;	/* From Rx packet statistics */
1108	int last_rx_noise;	/* From beacon statistics */
1109
1110	/* counts mgmt, ctl, and data packets */
1111	struct traffic_stats tx_stats;
1112	struct traffic_stats rx_stats;
1113
1114	/* counts interrupts */
1115	struct isr_statistics isr_stats;
1116
1117	struct iwl_power_mgr power_data;
1118	struct iwl_tt_mgmt thermal_throttle;
1119
1120	struct iwl_notif_statistics statistics;
1121	unsigned long last_statistics_time;
1122
1123	/* context information */
1124	u16 rates_mask;
1125
1126	u8 bssid[ETH_ALEN];
1127	u16 rts_threshold;
1128	u8 mac_addr[ETH_ALEN];
1129
1130	/*station table variables */
1131	spinlock_t sta_lock;
1132	int num_stations;
1133	struct iwl_station_entry stations[IWL_STATION_COUNT];
1134	struct iwl_wep_key wep_keys[WEP_KEYS_MAX];
1135	u8 default_wep_key;
1136	u8 key_mapping_key;
1137	unsigned long ucode_key_table;
1138
1139	/* queue refcounts */
1140#define IWL_MAX_HW_QUEUES	32
1141	unsigned long queue_stopped[BITS_TO_LONGS(IWL_MAX_HW_QUEUES)];
1142	/* for each AC */
1143	atomic_t queue_stop_count[4];
1144
1145	/* Indication if ieee80211_ops->open has been called */
1146	u8 is_open;
1147
1148	u8 mac80211_registered;
1149
1150	/* Rx'd packet timing information */
1151	u32 last_beacon_time;
1152	u64 last_tsf;
1153
1154	/* eeprom */
1155	u8 *eeprom;
1156	int    nvm_device_type;
1157	struct iwl_eeprom_calib_info *calib_info;
1158
1159	enum nl80211_iftype iw_mode;
1160
1161	struct sk_buff *ibss_beacon;
1162
1163	/* Last Rx'd beacon timestamp */
1164	u64 timestamp;
1165	u16 beacon_int;
1166	struct ieee80211_vif *vif;
1167
1168	/*Added for 3945 */
1169	void *shared_virt;
1170	dma_addr_t shared_phys;
1171	/*End*/
1172	struct iwl_hw_params hw_params;
1173
1174	/* INT ICT Table */
1175	__le32 *ict_tbl;
1176	dma_addr_t ict_tbl_dma;
1177	dma_addr_t aligned_ict_tbl_dma;
1178	int ict_index;
1179	void *ict_tbl_vir;
1180	u32 inta;
1181	bool use_ict;
1182
1183	u32 inta_mask;
1184	/* Current association information needed to configure the
1185	 * hardware */
1186	u16 assoc_id;
1187	u16 assoc_capability;
1188
1189	struct iwl_qos_info qos_data;
1190
1191	struct workqueue_struct *workqueue;
1192
1193	struct work_struct up;
1194	struct work_struct restart;
1195	struct work_struct calibrated_work;
1196	struct work_struct scan_completed;
1197	struct work_struct rx_replenish;
1198	struct work_struct abort_scan;
1199	struct work_struct update_link_led;
1200	struct work_struct auth_work;
1201	struct work_struct report_work;
1202	struct work_struct request_scan;
1203	struct work_struct beacon_update;
1204	struct work_struct tt_work;
1205	struct work_struct ct_enter;
1206	struct work_struct ct_exit;
1207
1208	struct tasklet_struct irq_tasklet;
1209
1210	struct delayed_work init_alive_start;
1211	struct delayed_work alive_start;
1212	struct delayed_work scan_check;
1213
1214	/*For 3945 only*/
1215	struct delayed_work thermal_periodic;
1216	struct delayed_work rfkill_poll;
1217
1218	/* TX Power */
1219	s8 tx_power_user_lmt;
1220	s8 tx_power_device_lmt;
1221
1222
1223#ifdef CONFIG_IWLWIFI_DEBUG
1224	/* debugging info */
1225	u32 debug_level; /* per device debugging will override global
1226			    iwl_debug_level if set */
1227	u32 framecnt_to_us;
1228	atomic_t restrict_refcnt;
1229	bool disable_ht40;
1230#ifdef CONFIG_IWLWIFI_DEBUGFS
1231	/* debugfs */
1232	u16 tx_traffic_idx;
1233	u16 rx_traffic_idx;
1234	u8 *tx_traffic;
1235	u8 *rx_traffic;
1236	struct iwl_debugfs *dbgfs;
1237#endif /* CONFIG_IWLWIFI_DEBUGFS */
1238#endif /* CONFIG_IWLWIFI_DEBUG */
1239
1240	struct work_struct txpower_work;
1241	u32 disable_sens_cal;
1242	u32 disable_chain_noise_cal;
1243	u32 disable_tx_power_cal;
1244	struct work_struct run_time_calib_work;
1245	struct timer_list statistics_periodic;
1246	bool hw_ready;
1247	/*For 3945*/
1248#define IWL_DEFAULT_TX_POWER 0x0F
1249
1250	struct iwl3945_notif_statistics statistics_39;
1251
1252	u32 sta_supp_rates;
1253}; /*iwl_priv */
1254
1255static inline void iwl_txq_ctx_activate(struct iwl_priv *priv, int txq_id)
1256{
1257	set_bit(txq_id, &priv->txq_ctx_active_msk);
1258}
1259
1260static inline void iwl_txq_ctx_deactivate(struct iwl_priv *priv, int txq_id)
1261{
1262	clear_bit(txq_id, &priv->txq_ctx_active_msk);
1263}
1264
1265#ifdef CONFIG_IWLWIFI_DEBUG
1266const char *iwl_get_tx_fail_reason(u32 status);
1267/*
1268 * iwl_get_debug_level: Return active debug level for device
1269 *
1270 * Using sysfs it is possible to set per device debug level. This debug
1271 * level will be used if set, otherwise the global debug level which can be
1272 * set via module parameter is used.
1273 */
1274static inline u32 iwl_get_debug_level(struct iwl_priv *priv)
1275{
1276	if (priv->debug_level)
1277		return priv->debug_level;
1278	else
1279		return iwl_debug_level;
1280}
1281#else
1282static inline const char *iwl_get_tx_fail_reason(u32 status) { return ""; }
1283
1284static inline u32 iwl_get_debug_level(struct iwl_priv *priv)
1285{
1286	return iwl_debug_level;
1287}
1288#endif
1289
1290
1291static inline struct ieee80211_hdr *iwl_tx_queue_get_hdr(struct iwl_priv *priv,
1292							 int txq_id, int idx)
1293{
1294	if (priv->txq[txq_id].txb[idx].skb[0])
1295		return (struct ieee80211_hdr *)priv->txq[txq_id].
1296				txb[idx].skb[0]->data;
1297	return NULL;
1298}
1299
1300
1301static inline int iwl_is_associated(struct iwl_priv *priv)
1302{
1303	return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
1304}
1305
1306static inline int is_channel_valid(const struct iwl_channel_info *ch_info)
1307{
1308	if (ch_info == NULL)
1309		return 0;
1310	return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
1311}
1312
1313static inline int is_channel_radar(const struct iwl_channel_info *ch_info)
1314{
1315	return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
1316}
1317
1318static inline u8 is_channel_a_band(const struct iwl_channel_info *ch_info)
1319{
1320	return ch_info->band == IEEE80211_BAND_5GHZ;
1321}
1322
1323static inline u8 is_channel_bg_band(const struct iwl_channel_info *ch_info)
1324{
1325	return ch_info->band == IEEE80211_BAND_2GHZ;
1326}
1327
1328static inline int is_channel_passive(const struct iwl_channel_info *ch)
1329{
1330	return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
1331}
1332
1333static inline int is_channel_ibss(const struct iwl_channel_info *ch)
1334{
1335	return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
1336}
1337
1338#endif				/* __iwl_dev_h__ */
1339