iwl-dev.h revision bd35f150823c21000f4c0f029abb258bc1ae3b5f 
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 iwl6000h_2agn_cfg;
59extern struct iwl_cfg iwl6000h_2abg_cfg;
60extern struct iwl_cfg iwl6000h_2bg_cfg;
61extern struct iwl_cfg iwl6000i_2agn_cfg;
62extern struct iwl_cfg iwl6000i_2abg_cfg;
63extern struct iwl_cfg iwl6000i_2bg_cfg;
64extern struct iwl_cfg iwl6000_3agn_cfg;
65extern struct iwl_cfg iwl6050_2agn_cfg;
66extern struct iwl_cfg iwl6050_2abg_cfg;
67extern struct iwl_cfg iwl6050_3agn_cfg;
68extern struct iwl_cfg iwl1000_bgn_cfg;
69extern struct iwl_cfg iwl1000_bg_cfg;
70
71struct iwl_tx_queue;
72
73/* shared structures from iwl-5000.c */
74extern struct iwl_mod_params iwl50_mod_params;
75extern struct iwl_ucode_ops iwl5000_ucode;
76extern struct iwl_lib_ops iwl5000_lib;
77extern struct iwl_hcmd_ops iwl5000_hcmd;
78extern struct iwl_hcmd_utils_ops iwl5000_hcmd_utils;
79
80/* shared functions from iwl-5000.c */
81extern u16 iwl5000_get_hcmd_size(u8 cmd_id, u16 len);
82extern u16 iwl5000_build_addsta_hcmd(const struct iwl_addsta_cmd *cmd,
83				     u8 *data);
84extern void iwl5000_rts_tx_cmd_flag(struct ieee80211_tx_info *info,
85				    __le32 *tx_flags);
86extern int iwl5000_calc_rssi(struct iwl_priv *priv,
87			     struct iwl_rx_phy_res *rx_resp);
88extern int iwl5000_apm_init(struct iwl_priv *priv);
89extern void iwl5000_nic_config(struct iwl_priv *priv);
90extern u16 iwl5000_eeprom_calib_version(struct iwl_priv *priv);
91extern const u8 *iwl5000_eeprom_query_addr(const struct iwl_priv *priv,
92				    size_t offset);
93extern void iwl5000_txq_update_byte_cnt_tbl(struct iwl_priv *priv,
94					    struct iwl_tx_queue *txq,
95					    u16 byte_cnt);
96extern void iwl5000_txq_inval_byte_cnt_tbl(struct iwl_priv *priv,
97				    struct iwl_tx_queue *txq);
98extern int iwl5000_load_ucode(struct iwl_priv *priv);
99extern void iwl5000_init_alive_start(struct iwl_priv *priv);
100extern int iwl5000_alive_notify(struct iwl_priv *priv);
101extern int iwl5000_hw_set_hw_params(struct iwl_priv *priv);
102extern int iwl5000_txq_agg_enable(struct iwl_priv *priv, int txq_id,
103			   int tx_fifo, int sta_id, int tid, u16 ssn_idx);
104extern int iwl5000_txq_agg_disable(struct iwl_priv *priv, u16 txq_id,
105			    u16 ssn_idx, u8 tx_fifo);
106extern void iwl5000_txq_set_sched(struct iwl_priv *priv, u32 mask);
107extern void iwl5000_setup_deferred_work(struct iwl_priv *priv);
108extern void iwl5000_rx_handler_setup(struct iwl_priv *priv);
109extern int iwl5000_hw_valid_rtc_data_addr(u32 addr);
110extern int iwl5000_send_tx_power(struct iwl_priv *priv);
111extern void iwl5000_temperature(struct iwl_priv *priv);
112
113/* CT-KILL constants */
114#define CT_KILL_THRESHOLD_LEGACY   110 /* in Celsius */
115#define CT_KILL_THRESHOLD	   114 /* in Celsius */
116#define CT_KILL_EXIT_THRESHOLD     95  /* in Celsius */
117
118/* Default noise level to report when noise measurement is not available.
119 *   This may be because we're:
120 *   1)  Not associated (4965, no beacon statistics being sent to driver)
121 *   2)  Scanning (noise measurement does not apply to associated channel)
122 *   3)  Receiving CCK (3945 delivers noise info only for OFDM frames)
123 * Use default noise value of -127 ... this is below the range of measurable
124 *   Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
125 *   Also, -127 works better than 0 when averaging frames with/without
126 *   noise info (e.g. averaging might be done in app); measured dBm values are
127 *   always negative ... using a negative value as the default keeps all
128 *   averages within an s8's (used in some apps) range of negative values. */
129#define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
130
131/*
132 * RTS threshold here is total size [2347] minus 4 FCS bytes
133 * Per spec:
134 *   a value of 0 means RTS on all data/management packets
135 *   a value > max MSDU size means no RTS
136 * else RTS for data/management frames where MPDU is larger
137 *   than RTS value.
138 */
139#define DEFAULT_RTS_THRESHOLD     2347U
140#define MIN_RTS_THRESHOLD         0U
141#define MAX_RTS_THRESHOLD         2347U
142#define MAX_MSDU_SIZE		  2304U
143#define MAX_MPDU_SIZE		  2346U
144#define DEFAULT_BEACON_INTERVAL   100U
145#define	DEFAULT_SHORT_RETRY_LIMIT 7U
146#define	DEFAULT_LONG_RETRY_LIMIT  4U
147
148struct iwl_rx_mem_buffer {
149	dma_addr_t real_dma_addr;
150	dma_addr_t aligned_dma_addr;
151	struct sk_buff *skb;
152	struct list_head list;
153};
154
155/* defined below */
156struct iwl_device_cmd;
157
158struct iwl_cmd_meta {
159	/* only for SYNC commands, iff the reply skb is wanted */
160	struct iwl_host_cmd *source;
161	/*
162	 * only for ASYNC commands
163	 * (which is somewhat stupid -- look at iwl-sta.c for instance
164	 * which duplicates a bunch of code because the callback isn't
165	 * invoked for SYNC commands, if it were and its result passed
166	 * through it would be simpler...)
167	 */
168	void (*callback)(struct iwl_priv *priv,
169			 struct iwl_device_cmd *cmd,
170			 struct sk_buff *skb);
171
172	/* The CMD_SIZE_HUGE flag bit indicates that the command
173	 * structure is stored at the end of the shared queue memory. */
174	u32 flags;
175
176	DECLARE_PCI_UNMAP_ADDR(mapping)
177	DECLARE_PCI_UNMAP_LEN(len)
178};
179
180/*
181 * Generic queue structure
182 *
183 * Contains common data for Rx and Tx queues
184 */
185struct iwl_queue {
186	int n_bd;              /* number of BDs in this queue */
187	int write_ptr;       /* 1-st empty entry (index) host_w*/
188	int read_ptr;         /* last used entry (index) host_r*/
189	dma_addr_t dma_addr;   /* physical addr for BD's */
190	int n_window;	       /* safe queue window */
191	u32 id;
192	int low_mark;	       /* low watermark, resume queue if free
193				* space more than this */
194	int high_mark;         /* high watermark, stop queue if free
195				* space less than this */
196} __attribute__ ((packed));
197
198/* One for each TFD */
199struct iwl_tx_info {
200	struct sk_buff *skb[IWL_NUM_OF_TBS - 1];
201};
202
203/**
204 * struct iwl_tx_queue - Tx Queue for DMA
205 * @q: generic Rx/Tx queue descriptor
206 * @bd: base of circular buffer of TFDs
207 * @cmd: array of command/TX buffer pointers
208 * @meta: array of meta data for each command/tx buffer
209 * @dma_addr_cmd: physical address of cmd/tx buffer array
210 * @txb: array of per-TFD driver data
211 * @need_update: indicates need to update read/write index
212 * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
213 *
214 * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
215 * descriptors) and required locking structures.
216 */
217#define TFD_TX_CMD_SLOTS 256
218#define TFD_CMD_SLOTS 32
219
220struct iwl_tx_queue {
221	struct iwl_queue q;
222	void *tfds;
223	struct iwl_device_cmd **cmd;
224	struct iwl_cmd_meta *meta;
225	struct iwl_tx_info *txb;
226	u8 need_update;
227	u8 sched_retry;
228	u8 active;
229	u8 swq_id;
230};
231
232#define IWL_NUM_SCAN_RATES         (2)
233
234struct iwl4965_channel_tgd_info {
235	u8 type;
236	s8 max_power;
237};
238
239struct iwl4965_channel_tgh_info {
240	s64 last_radar_time;
241};
242
243#define IWL4965_MAX_RATE (33)
244
245struct iwl3945_clip_group {
246	/* maximum power level to prevent clipping for each rate, derived by
247	 *   us from this band's saturation power in EEPROM */
248	const s8 clip_powers[IWL_MAX_RATES];
249};
250
251/* current Tx power values to use, one for each rate for each channel.
252 * requested power is limited by:
253 * -- regulatory EEPROM limits for this channel
254 * -- hardware capabilities (clip-powers)
255 * -- spectrum management
256 * -- user preference (e.g. iwconfig)
257 * when requested power is set, base power index must also be set. */
258struct iwl3945_channel_power_info {
259	struct iwl3945_tx_power tpc;	/* actual radio and DSP gain settings */
260	s8 power_table_index;	/* actual (compenst'd) index into gain table */
261	s8 base_power_index;	/* gain index for power at factory temp. */
262	s8 requested_power;	/* power (dBm) requested for this chnl/rate */
263};
264
265/* current scan Tx power values to use, one for each scan rate for each
266 * channel. */
267struct iwl3945_scan_power_info {
268	struct iwl3945_tx_power tpc;	/* actual radio and DSP gain settings */
269	s8 power_table_index;	/* actual (compenst'd) index into gain table */
270	s8 requested_power;	/* scan pwr (dBm) requested for chnl/rate */
271};
272
273/*
274 * One for each channel, holds all channel setup data
275 * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
276 *     with one another!
277 */
278struct iwl_channel_info {
279	struct iwl4965_channel_tgd_info tgd;
280	struct iwl4965_channel_tgh_info tgh;
281	struct iwl_eeprom_channel eeprom;	/* EEPROM regulatory limit */
282	struct iwl_eeprom_channel ht40_eeprom;	/* EEPROM regulatory limit for
283						 * HT40 channel */
284
285	u8 channel;	  /* channel number */
286	u8 flags;	  /* flags copied from EEPROM */
287	s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
288	s8 curr_txpow;	  /* (dBm) regulatory/spectrum/user (not h/w) limit */
289	s8 min_power;	  /* always 0 */
290	s8 scan_power;	  /* (dBm) regul. eeprom, direct scans, any rate */
291
292	u8 group_index;	  /* 0-4, maps channel to group1/2/3/4/5 */
293	u8 band_index;	  /* 0-4, maps channel to band1/2/3/4/5 */
294	enum ieee80211_band band;
295
296	/* HT40 channel info */
297	s8 ht40_max_power_avg;	/* (dBm) regul. eeprom, normal Tx, any rate */
298	s8 ht40_curr_txpow;	/* (dBm) regulatory/spectrum/user (not h/w) */
299	s8 ht40_min_power;	/* always 0 */
300	s8 ht40_scan_power;	/* (dBm) eeprom, direct scans, any rate */
301	u8 ht40_flags;		/* flags copied from EEPROM */
302	u8 ht40_extension_channel; /* HT_IE_EXT_CHANNEL_* */
303
304	/* Radio/DSP gain settings for each "normal" data Tx rate.
305	 * These include, in addition to RF and DSP gain, a few fields for
306	 *   remembering/modifying gain settings (indexes). */
307	struct iwl3945_channel_power_info power_info[IWL4965_MAX_RATE];
308
309	/* Radio/DSP gain settings for each scan rate, for directed scans. */
310	struct iwl3945_scan_power_info scan_pwr_info[IWL_NUM_SCAN_RATES];
311};
312
313#define IWL_TX_FIFO_AC0	0
314#define IWL_TX_FIFO_AC1	1
315#define IWL_TX_FIFO_AC2	2
316#define IWL_TX_FIFO_AC3	3
317#define IWL_TX_FIFO_HCCA_1	5
318#define IWL_TX_FIFO_HCCA_2	6
319#define IWL_TX_FIFO_NONE	7
320
321/* Minimum number of queues. MAX_NUM is defined in hw specific files.
322 * Set the minimum to accommodate the 4 standard TX queues, 1 command
323 * queue, 2 (unused) HCCA queues, and 4 HT queues (one for each AC) */
324#define IWL_MIN_NUM_QUEUES	10
325
326/*
327 * uCode queue management definitions ...
328 * Queue #4 is the command queue for 3945/4965/5x00/1000/6x00.
329 */
330#define IWL_CMD_QUEUE_NUM	4
331
332/* Power management (not Tx power) structures */
333
334enum iwl_pwr_src {
335	IWL_PWR_SRC_VMAIN,
336	IWL_PWR_SRC_VAUX,
337};
338
339#define IEEE80211_DATA_LEN              2304
340#define IEEE80211_4ADDR_LEN             30
341#define IEEE80211_HLEN                  (IEEE80211_4ADDR_LEN)
342#define IEEE80211_FRAME_LEN             (IEEE80211_DATA_LEN + IEEE80211_HLEN)
343
344struct iwl_frame {
345	union {
346		struct ieee80211_hdr frame;
347		struct iwl_tx_beacon_cmd beacon;
348		u8 raw[IEEE80211_FRAME_LEN];
349		u8 cmd[360];
350	} u;
351	struct list_head list;
352};
353
354#define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
355#define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
356#define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
357
358enum {
359	CMD_SYNC = 0,
360	CMD_SIZE_NORMAL = 0,
361	CMD_NO_SKB = 0,
362	CMD_SIZE_HUGE = (1 << 0),
363	CMD_ASYNC = (1 << 1),
364	CMD_WANT_SKB = (1 << 2),
365};
366
367#define IWL_CMD_MAX_PAYLOAD 320
368
369/**
370 * struct iwl_device_cmd
371 *
372 * For allocation of the command and tx queues, this establishes the overall
373 * size of the largest command we send to uCode, except for a scan command
374 * (which is relatively huge; space is allocated separately).
375 */
376struct iwl_device_cmd {
377	struct iwl_cmd_header hdr;	/* uCode API */
378	union {
379		u32 flags;
380		u8 val8;
381		u16 val16;
382		u32 val32;
383		struct iwl_tx_cmd tx;
384		u8 payload[IWL_CMD_MAX_PAYLOAD];
385	} __attribute__ ((packed)) cmd;
386} __attribute__ ((packed));
387
388#define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_device_cmd))
389
390
391struct iwl_host_cmd {
392	const void *data;
393	struct sk_buff *reply_skb;
394	void (*callback)(struct iwl_priv *priv,
395			 struct iwl_device_cmd *cmd,
396			 struct sk_buff *skb);
397	u32 flags;
398	u16 len;
399	u8 id;
400};
401
402/*
403 * RX related structures and functions
404 */
405#define RX_FREE_BUFFERS 64
406#define RX_LOW_WATERMARK 8
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	/* BSS related data */
519	u8 extension_chan_offset;
520	u8 ht_protection;
521	u8 non_GF_STA_present;
522};
523
524union iwl_qos_capabity {
525	struct {
526		u8 edca_count:4;	/* bit 0-3 */
527		u8 q_ack:1;		/* bit 4 */
528		u8 queue_request:1;	/* bit 5 */
529		u8 txop_request:1;	/* bit 6 */
530		u8 reserved:1;		/* bit 7 */
531	} q_AP;
532	struct {
533		u8 acvo_APSD:1;		/* bit 0 */
534		u8 acvi_APSD:1;		/* bit 1 */
535		u8 ac_bk_APSD:1;	/* bit 2 */
536		u8 ac_be_APSD:1;	/* bit 3 */
537		u8 q_ack:1;		/* bit 4 */
538		u8 max_len:2;		/* bit 5-6 */
539		u8 more_data_ack:1;	/* bit 7 */
540	} q_STA;
541	u8 val;
542};
543
544/* QoS structures */
545struct iwl_qos_info {
546	int qos_active;
547	union iwl_qos_capabity qos_cap;
548	struct iwl_qosparam_cmd def_qos_parm;
549};
550
551#define STA_PS_STATUS_WAKE             0
552#define STA_PS_STATUS_SLEEP            1
553
554
555struct iwl3945_station_entry {
556	struct iwl3945_addsta_cmd sta;
557	struct iwl_tid_data tid[MAX_TID_COUNT];
558	u8 used;
559	u8 ps_status;
560	struct iwl_hw_key keyinfo;
561};
562
563struct iwl_station_entry {
564	struct iwl_addsta_cmd sta;
565	struct iwl_tid_data tid[MAX_TID_COUNT];
566	u8 used;
567	u8 ps_status;
568	struct iwl_hw_key keyinfo;
569};
570
571/* one for each uCode image (inst/data, boot/init/runtime) */
572struct fw_desc {
573	void *v_addr;		/* access by driver */
574	dma_addr_t p_addr;	/* access by card's busmaster DMA */
575	u32 len;		/* bytes */
576};
577
578/* uCode file layout */
579struct iwl_ucode_header {
580	__le32 ver;	/* major/minor/API/serial */
581	union {
582		struct {
583			__le32 inst_size;	/* bytes of runtime code */
584			__le32 data_size;	/* bytes of runtime data */
585			__le32 init_size;	/* bytes of init code */
586			__le32 init_data_size;	/* bytes of init data */
587			__le32 boot_size;	/* bytes of bootstrap code */
588			u8 data[0];		/* in same order as sizes */
589		} v1;
590		struct {
591			__le32 build;		/* build number */
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		} v2;
599	} u;
600};
601#define UCODE_HEADER_SIZE(ver) ((ver) == 1 ? 24 : 28)
602
603struct iwl4965_ibss_seq {
604	u8 mac[ETH_ALEN];
605	u16 seq_num;
606	u16 frag_num;
607	unsigned long packet_time;
608	struct list_head list;
609};
610
611struct iwl_sensitivity_ranges {
612	u16 min_nrg_cck;
613	u16 max_nrg_cck;
614
615	u16 nrg_th_cck;
616	u16 nrg_th_ofdm;
617
618	u16 auto_corr_min_ofdm;
619	u16 auto_corr_min_ofdm_mrc;
620	u16 auto_corr_min_ofdm_x1;
621	u16 auto_corr_min_ofdm_mrc_x1;
622
623	u16 auto_corr_max_ofdm;
624	u16 auto_corr_max_ofdm_mrc;
625	u16 auto_corr_max_ofdm_x1;
626	u16 auto_corr_max_ofdm_mrc_x1;
627
628	u16 auto_corr_max_cck;
629	u16 auto_corr_max_cck_mrc;
630	u16 auto_corr_min_cck;
631	u16 auto_corr_min_cck_mrc;
632};
633
634
635#define KELVIN_TO_CELSIUS(x) ((x)-273)
636#define CELSIUS_TO_KELVIN(x) ((x)+273)
637
638
639/**
640 * struct iwl_hw_params
641 * @max_txq_num: Max # Tx queues supported
642 * @dma_chnl_num: Number of Tx DMA/FIFO channels
643 * @scd_bc_tbls_size: size of scheduler byte count tables
644 * @tfd_size: TFD size
645 * @tx/rx_chains_num: Number of TX/RX chains
646 * @valid_tx/rx_ant: usable antennas
647 * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
648 * @max_rxq_log: Log-base-2 of max_rxq_size
649 * @rx_buf_size: Rx buffer size
650 * @rx_wrt_ptr_reg: FH{39}_RSCSR_CHNL0_WPTR
651 * @max_stations:
652 * @bcast_sta_id:
653 * @ht40_channel: is 40MHz width possible in band 2.4
654 * BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ)
655 * @sw_crypto: 0 for hw, 1 for sw
656 * @max_xxx_size: for ucode uses
657 * @ct_kill_threshold: temperature threshold
658 * @calib_init_cfg: setup initial calibrations for the hw
659 * @struct iwl_sensitivity_ranges: range of sensitivity values
660 */
661struct iwl_hw_params {
662	u8 max_txq_num;
663	u8 dma_chnl_num;
664	u16 scd_bc_tbls_size;
665	u32 tfd_size;
666	u8  tx_chains_num;
667	u8  rx_chains_num;
668	u8  valid_tx_ant;
669	u8  valid_rx_ant;
670	u16 max_rxq_size;
671	u16 max_rxq_log;
672	u32 rx_buf_size;
673	u32 rx_wrt_ptr_reg;
674	u32 max_pkt_size;
675	u8  max_stations;
676	u8  bcast_sta_id;
677	u8  ht40_channel;
678	u8  max_beacon_itrvl;	/* in 1024 ms */
679	u32 max_inst_size;
680	u32 max_data_size;
681	u32 max_bsm_size;
682	u32 ct_kill_threshold; /* value in hw-dependent units */
683	u32 ct_kill_exit_threshold; /* value in hw-dependent units */
684				    /* for 1000, 6000 series and up */
685	u32 calib_init_cfg;
686	const struct iwl_sensitivity_ranges *sens;
687};
688
689
690/******************************************************************************
691 *
692 * Functions implemented in core module which are forward declared here
693 * for use by iwl-[4-5].c
694 *
695 * NOTE:  The implementation of these functions are not hardware specific
696 * which is why they are in the core module files.
697 *
698 * Naming convention --
699 * iwl_         <-- Is part of iwlwifi
700 * iwlXXXX_     <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
701 * iwl4965_bg_      <-- Called from work queue context
702 * iwl4965_mac_     <-- mac80211 callback
703 *
704 ****************************************************************************/
705extern void iwl_update_chain_flags(struct iwl_priv *priv);
706extern int iwl_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src);
707extern const u8 iwl_bcast_addr[ETH_ALEN];
708extern int iwl_rxq_stop(struct iwl_priv *priv);
709extern void iwl_txq_ctx_stop(struct iwl_priv *priv);
710extern int iwl_queue_space(const struct iwl_queue *q);
711static inline int iwl_queue_used(const struct iwl_queue *q, int i)
712{
713	return q->write_ptr > q->read_ptr ?
714		(i >= q->read_ptr && i < q->write_ptr) :
715		!(i < q->read_ptr && i >= q->write_ptr);
716}
717
718
719static inline u8 get_cmd_index(struct iwl_queue *q, u32 index, int is_huge)
720{
721	/* This is for scan command, the big buffer at end of command array */
722	if (is_huge)
723		return q->n_window;	/* must be power of 2 */
724
725	/* Otherwise, use normal size buffers */
726	return index & (q->n_window - 1);
727}
728
729
730struct iwl_dma_ptr {
731	dma_addr_t dma;
732	void *addr;
733	size_t size;
734};
735
736#define IWL_OPERATION_MODE_AUTO     0
737#define IWL_OPERATION_MODE_HT_ONLY  1
738#define IWL_OPERATION_MODE_MIXED    2
739#define IWL_OPERATION_MODE_20MHZ    3
740
741#define IWL_TX_CRC_SIZE 4
742#define IWL_TX_DELIMITER_SIZE 4
743
744#define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
745
746/* Sensitivity and chain noise calibration */
747#define INITIALIZATION_VALUE		0xFFFF
748#define IWL4965_CAL_NUM_BEACONS		20
749#define IWL_CAL_NUM_BEACONS		16
750#define MAXIMUM_ALLOWED_PATHLOSS	15
751
752#define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
753
754#define MAX_FA_OFDM  50
755#define MIN_FA_OFDM  5
756#define MAX_FA_CCK   50
757#define MIN_FA_CCK   5
758
759#define AUTO_CORR_STEP_OFDM       1
760
761#define AUTO_CORR_STEP_CCK     3
762#define AUTO_CORR_MAX_TH_CCK   160
763
764#define NRG_DIFF               2
765#define NRG_STEP_CCK           2
766#define NRG_MARGIN             8
767#define MAX_NUMBER_CCK_NO_FA 100
768
769#define AUTO_CORR_CCK_MIN_VAL_DEF    (125)
770
771#define CHAIN_A             0
772#define CHAIN_B             1
773#define CHAIN_C             2
774#define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
775#define ALL_BAND_FILTER			0xFF00
776#define IN_BAND_FILTER			0xFF
777#define MIN_AVERAGE_NOISE_MAX_VALUE	0xFFFFFFFF
778
779#define NRG_NUM_PREV_STAT_L     20
780#define NUM_RX_CHAINS           3
781
782enum iwl4965_false_alarm_state {
783	IWL_FA_TOO_MANY = 0,
784	IWL_FA_TOO_FEW = 1,
785	IWL_FA_GOOD_RANGE = 2,
786};
787
788enum iwl4965_chain_noise_state {
789	IWL_CHAIN_NOISE_ALIVE = 0,  /* must be 0 */
790	IWL_CHAIN_NOISE_ACCUMULATE,
791	IWL_CHAIN_NOISE_CALIBRATED,
792	IWL_CHAIN_NOISE_DONE,
793};
794
795enum iwl4965_calib_enabled_state {
796	IWL_CALIB_DISABLED = 0,  /* must be 0 */
797	IWL_CALIB_ENABLED = 1,
798};
799
800
801/*
802 * enum iwl_calib
803 * defines the order in which results of initial calibrations
804 * should be sent to the runtime uCode
805 */
806enum iwl_calib {
807	IWL_CALIB_XTAL,
808	IWL_CALIB_DC,
809	IWL_CALIB_LO,
810	IWL_CALIB_TX_IQ,
811	IWL_CALIB_TX_IQ_PERD,
812	IWL_CALIB_BASE_BAND,
813	IWL_CALIB_MAX
814};
815
816/* Opaque calibration results */
817struct iwl_calib_result {
818	void *buf;
819	size_t buf_len;
820};
821
822enum ucode_type {
823	UCODE_NONE = 0,
824	UCODE_INIT,
825	UCODE_RT
826};
827
828/* Sensitivity calib data */
829struct iwl_sensitivity_data {
830	u32 auto_corr_ofdm;
831	u32 auto_corr_ofdm_mrc;
832	u32 auto_corr_ofdm_x1;
833	u32 auto_corr_ofdm_mrc_x1;
834	u32 auto_corr_cck;
835	u32 auto_corr_cck_mrc;
836
837	u32 last_bad_plcp_cnt_ofdm;
838	u32 last_fa_cnt_ofdm;
839	u32 last_bad_plcp_cnt_cck;
840	u32 last_fa_cnt_cck;
841
842	u32 nrg_curr_state;
843	u32 nrg_prev_state;
844	u32 nrg_value[10];
845	u8  nrg_silence_rssi[NRG_NUM_PREV_STAT_L];
846	u32 nrg_silence_ref;
847	u32 nrg_energy_idx;
848	u32 nrg_silence_idx;
849	u32 nrg_th_cck;
850	s32 nrg_auto_corr_silence_diff;
851	u32 num_in_cck_no_fa;
852	u32 nrg_th_ofdm;
853};
854
855/* Chain noise (differential Rx gain) calib data */
856struct iwl_chain_noise_data {
857	u32 active_chains;
858	u32 chain_noise_a;
859	u32 chain_noise_b;
860	u32 chain_noise_c;
861	u32 chain_signal_a;
862	u32 chain_signal_b;
863	u32 chain_signal_c;
864	u16 beacon_count;
865	u8 disconn_array[NUM_RX_CHAINS];
866	u8 delta_gain_code[NUM_RX_CHAINS];
867	u8 radio_write;
868	u8 state;
869};
870
871#define	EEPROM_SEM_TIMEOUT 10		/* milliseconds */
872#define EEPROM_SEM_RETRY_LIMIT 1000	/* number of attempts (not time) */
873
874#define IWL_TRAFFIC_ENTRIES	(256)
875#define IWL_TRAFFIC_ENTRY_SIZE  (64)
876
877enum {
878	MEASUREMENT_READY = (1 << 0),
879	MEASUREMENT_ACTIVE = (1 << 1),
880};
881
882enum iwl_nvm_type {
883	NVM_DEVICE_TYPE_EEPROM = 0,
884	NVM_DEVICE_TYPE_OTP,
885};
886
887/*
888 * Two types of OTP memory access modes
889 *   IWL_OTP_ACCESS_ABSOLUTE - absolute address mode,
890 * 			        based on physical memory addressing
891 *   IWL_OTP_ACCESS_RELATIVE - relative address mode,
892 * 			       based on logical memory addressing
893 */
894enum iwl_access_mode {
895	IWL_OTP_ACCESS_ABSOLUTE,
896	IWL_OTP_ACCESS_RELATIVE,
897};
898
899/**
900 * enum iwl_pa_type - Power Amplifier type
901 * @IWL_PA_SYSTEM:  based on uCode configuration
902 * @IWL_PA_HYBRID: use both Internal and external PA
903 * @IWL_PA_INTERNAL: use Internal only
904 */
905enum iwl_pa_type {
906	IWL_PA_SYSTEM = 0,
907	IWL_PA_HYBRID = 1,
908	IWL_PA_INTERNAL = 2,
909};
910
911/* interrupt statistics */
912struct isr_statistics {
913	u32 hw;
914	u32 sw;
915	u32 sw_err;
916	u32 sch;
917	u32 alive;
918	u32 rfkill;
919	u32 ctkill;
920	u32 wakeup;
921	u32 rx;
922	u32 rx_handlers[REPLY_MAX];
923	u32 tx;
924	u32 unhandled;
925};
926
927#ifdef CONFIG_IWLWIFI_DEBUGFS
928/* management statistics */
929enum iwl_mgmt_stats {
930	MANAGEMENT_ASSOC_REQ = 0,
931	MANAGEMENT_ASSOC_RESP,
932	MANAGEMENT_REASSOC_REQ,
933	MANAGEMENT_REASSOC_RESP,
934	MANAGEMENT_PROBE_REQ,
935	MANAGEMENT_PROBE_RESP,
936	MANAGEMENT_BEACON,
937	MANAGEMENT_ATIM,
938	MANAGEMENT_DISASSOC,
939	MANAGEMENT_AUTH,
940	MANAGEMENT_DEAUTH,
941	MANAGEMENT_ACTION,
942	MANAGEMENT_MAX,
943};
944/* control statistics */
945enum iwl_ctrl_stats {
946	CONTROL_BACK_REQ =  0,
947	CONTROL_BACK,
948	CONTROL_PSPOLL,
949	CONTROL_RTS,
950	CONTROL_CTS,
951	CONTROL_ACK,
952	CONTROL_CFEND,
953	CONTROL_CFENDACK,
954	CONTROL_MAX,
955};
956
957struct traffic_stats {
958	u32 mgmt[MANAGEMENT_MAX];
959	u32 ctrl[CONTROL_MAX];
960	u32 data_cnt;
961	u64 data_bytes;
962};
963#else
964struct traffic_stats {
965	u64 data_bytes;
966};
967#endif
968
969#define IWL_MAX_NUM_QUEUES	20 /* FIXME: do dynamic allocation */
970
971struct iwl_priv {
972
973	/* ieee device used by generic ieee processing code */
974	struct ieee80211_hw *hw;
975	struct ieee80211_channel *ieee_channels;
976	struct ieee80211_rate *ieee_rates;
977	struct iwl_cfg *cfg;
978
979	/* temporary frame storage list */
980	struct list_head free_frames;
981	int frames_count;
982
983	enum ieee80211_band band;
984	int alloc_rxb_skb;
985
986	void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv,
987				       struct iwl_rx_mem_buffer *rxb);
988
989	struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
990
991#if defined(CONFIG_IWLWIFI_SPECTRUM_MEASUREMENT) || defined(CONFIG_IWL3945_SPECTRUM_MEASUREMENT)
992	/* spectrum measurement report caching */
993	struct iwl_spectrum_notification measure_report;
994	u8 measurement_status;
995#endif
996	/* ucode beacon time */
997	u32 ucode_beacon_time;
998
999	/* we allocate array of iwl4965_channel_info for NIC's valid channels.
1000	 *    Access via channel # using indirect index array */
1001	struct iwl_channel_info *channel_info;	/* channel info array */
1002	u8 channel_count;	/* # of channels */
1003
1004	/* each calibration channel group in the EEPROM has a derived
1005	 * clip setting for each rate. 3945 only.*/
1006	const struct iwl3945_clip_group clip39_groups[5];
1007
1008	/* thermal calibration */
1009	s32 temperature;	/* degrees Kelvin */
1010	s32 last_temperature;
1011
1012	/* init calibration results */
1013	struct iwl_calib_result calib_results[IWL_CALIB_MAX];
1014
1015	/* Scan related variables */
1016	unsigned long last_scan_jiffies;
1017	unsigned long next_scan_jiffies;
1018	unsigned long scan_start;
1019	unsigned long scan_pass_start;
1020	unsigned long scan_start_tsf;
1021	void *scan;
1022	int scan_bands;
1023	struct cfg80211_scan_request *scan_request;
1024	u8 scan_tx_ant[IEEE80211_NUM_BANDS];
1025	u8 mgmt_tx_ant;
1026
1027	/* spinlock */
1028	spinlock_t lock;	/* protect general shared data */
1029	spinlock_t hcmd_lock;	/* protect hcmd */
1030	spinlock_t reg_lock;	/* protect hw register access */
1031	struct mutex mutex;
1032
1033	/* basic pci-network driver stuff */
1034	struct pci_dev *pci_dev;
1035
1036	/* pci hardware address support */
1037	void __iomem *hw_base;
1038	u32  hw_rev;
1039	u32  hw_wa_rev;
1040	u8   rev_id;
1041
1042	/* uCode images, save to reload in case of failure */
1043	u32 ucode_ver;			/* version of ucode, copy of
1044					   iwl_ucode.ver */
1045	struct fw_desc ucode_code;	/* runtime inst */
1046	struct fw_desc ucode_data;	/* runtime data original */
1047	struct fw_desc ucode_data_backup;	/* runtime data save/restore */
1048	struct fw_desc ucode_init;	/* initialization inst */
1049	struct fw_desc ucode_init_data;	/* initialization data */
1050	struct fw_desc ucode_boot;	/* bootstrap inst */
1051	enum ucode_type ucode_type;
1052	u8 ucode_write_complete;	/* the image write is complete */
1053
1054
1055	struct iwl_rxon_time_cmd rxon_timing;
1056
1057	/* We declare this const so it can only be
1058	 * changed via explicit cast within the
1059	 * routines that actually update the physical
1060	 * hardware */
1061	const struct iwl_rxon_cmd active_rxon;
1062	struct iwl_rxon_cmd staging_rxon;
1063
1064	struct iwl_rxon_cmd recovery_rxon;
1065
1066	/* 1st responses from initialize and runtime uCode images.
1067	 * 4965's initialize alive response contains some calibration data. */
1068	struct iwl_init_alive_resp card_alive_init;
1069	struct iwl_alive_resp card_alive;
1070
1071	unsigned long last_blink_time;
1072	u8 last_blink_rate;
1073	u8 allow_blinking;
1074	u64 led_tpt;
1075
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