iwl-dev.h revision e7d326ac437e9e9425dcd79382f4e5f6ca31fb16
1/******************************************************************************
2 *
3 * Copyright(c) 2003 - 2008 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 * James P. Ketrenos <ipw2100-admin@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_4965_h__
33#define __iwl_4965_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#define DRV_NAME        "iwl4965"
40#include "iwl-rfkill.h"
41#include "iwl-eeprom.h"
42#include "iwl-4965-hw.h"
43#include "iwl-csr.h"
44#include "iwl-prph.h"
45#include "iwl-debug.h"
46#include "iwl-led.h"
47#include "iwl-power.h"
48
49/* configuration for the iwl4965 */
50extern struct iwl_cfg iwl4965_agn_cfg;
51extern struct iwl_cfg iwl5300_agn_cfg;
52extern struct iwl_cfg iwl5100_agn_cfg;
53extern struct iwl_cfg iwl5350_agn_cfg;
54
55/* Change firmware file name, using "-" and incrementing number,
56 *   *only* when uCode interface or architecture changes so that it
57 *   is not compatible with earlier drivers.
58 * This number will also appear in << 8 position of 1st dword of uCode file */
59#define IWL4965_UCODE_API "-1"
60
61/* CT-KILL constants */
62#define CT_KILL_THRESHOLD	110 /* in Celsius */
63
64/* Default noise level to report when noise measurement is not available.
65 *   This may be because we're:
66 *   1)  Not associated (4965, no beacon statistics being sent to driver)
67 *   2)  Scanning (noise measurement does not apply to associated channel)
68 *   3)  Receiving CCK (3945 delivers noise info only for OFDM frames)
69 * Use default noise value of -127 ... this is below the range of measurable
70 *   Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
71 *   Also, -127 works better than 0 when averaging frames with/without
72 *   noise info (e.g. averaging might be done in app); measured dBm values are
73 *   always negative ... using a negative value as the default keeps all
74 *   averages within an s8's (used in some apps) range of negative values. */
75#define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
76
77/*
78 * RTS threshold here is total size [2347] minus 4 FCS bytes
79 * Per spec:
80 *   a value of 0 means RTS on all data/management packets
81 *   a value > max MSDU size means no RTS
82 * else RTS for data/management frames where MPDU is larger
83 *   than RTS value.
84 */
85#define DEFAULT_RTS_THRESHOLD     2347U
86#define MIN_RTS_THRESHOLD         0U
87#define MAX_RTS_THRESHOLD         2347U
88#define MAX_MSDU_SIZE		  2304U
89#define MAX_MPDU_SIZE		  2346U
90#define DEFAULT_BEACON_INTERVAL   100U
91#define	DEFAULT_SHORT_RETRY_LIMIT 7U
92#define	DEFAULT_LONG_RETRY_LIMIT  4U
93
94struct iwl_rx_mem_buffer {
95	dma_addr_t dma_addr;
96	struct sk_buff *skb;
97	struct list_head list;
98};
99
100/*
101 * Generic queue structure
102 *
103 * Contains common data for Rx and Tx queues
104 */
105struct iwl_queue {
106	int n_bd;              /* number of BDs in this queue */
107	int write_ptr;       /* 1-st empty entry (index) host_w*/
108	int read_ptr;         /* last used entry (index) host_r*/
109	dma_addr_t dma_addr;   /* physical addr for BD's */
110	int n_window;	       /* safe queue window */
111	u32 id;
112	int low_mark;	       /* low watermark, resume queue if free
113				* space more than this */
114	int high_mark;         /* high watermark, stop queue if free
115				* space less than this */
116} __attribute__ ((packed));
117
118#define MAX_NUM_OF_TBS          (20)
119
120/* One for each TFD */
121struct iwl_tx_info {
122	struct sk_buff *skb[MAX_NUM_OF_TBS];
123};
124
125/**
126 * struct iwl_tx_queue - Tx Queue for DMA
127 * @q: generic Rx/Tx queue descriptor
128 * @bd: base of circular buffer of TFDs
129 * @cmd: array of command/Tx buffers
130 * @dma_addr_cmd: physical address of cmd/tx buffer array
131 * @txb: array of per-TFD driver data
132 * @need_update: indicates need to update read/write index
133 * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
134 *
135 * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
136 * descriptors) and required locking structures.
137 */
138struct iwl_tx_queue {
139	struct iwl_queue q;
140	struct iwl_tfd_frame *bd;
141	struct iwl_cmd *cmd;
142	dma_addr_t dma_addr_cmd;
143	struct iwl_tx_info *txb;
144	int need_update;
145	int sched_retry;
146	int active;
147};
148
149#define IWL_NUM_SCAN_RATES         (2)
150
151struct iwl4965_channel_tgd_info {
152	u8 type;
153	s8 max_power;
154};
155
156struct iwl4965_channel_tgh_info {
157	s64 last_radar_time;
158};
159
160/* current Tx power values to use, one for each rate for each channel.
161 * requested power is limited by:
162 * -- regulatory EEPROM limits for this channel
163 * -- hardware capabilities (clip-powers)
164 * -- spectrum management
165 * -- user preference (e.g. iwconfig)
166 * when requested power is set, base power index must also be set. */
167struct iwl4965_channel_power_info {
168	struct iwl4965_tx_power tpc;	/* actual radio and DSP gain settings */
169	s8 power_table_index;	/* actual (compenst'd) index into gain table */
170	s8 base_power_index;	/* gain index for power at factory temp. */
171	s8 requested_power;	/* power (dBm) requested for this chnl/rate */
172};
173
174/* current scan Tx power values to use, one for each scan rate for each
175 * channel. */
176struct iwl4965_scan_power_info {
177	struct iwl4965_tx_power tpc;	/* actual radio and DSP gain settings */
178	s8 power_table_index;	/* actual (compenst'd) index into gain table */
179	s8 requested_power;	/* scan pwr (dBm) requested for chnl/rate */
180};
181
182/*
183 * One for each channel, holds all channel setup data
184 * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
185 *     with one another!
186 */
187#define IWL4965_MAX_RATE (33)
188
189struct iwl_channel_info {
190	struct iwl4965_channel_tgd_info tgd;
191	struct iwl4965_channel_tgh_info tgh;
192	struct iwl_eeprom_channel eeprom;	/* EEPROM regulatory limit */
193	struct iwl_eeprom_channel fat_eeprom;	/* EEPROM regulatory limit for
194						 * FAT channel */
195
196	u8 channel;	  /* channel number */
197	u8 flags;	  /* flags copied from EEPROM */
198	s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
199	s8 curr_txpow;	  /* (dBm) regulatory/spectrum/user (not h/w) limit */
200	s8 min_power;	  /* always 0 */
201	s8 scan_power;	  /* (dBm) regul. eeprom, direct scans, any rate */
202
203	u8 group_index;	  /* 0-4, maps channel to group1/2/3/4/5 */
204	u8 band_index;	  /* 0-4, maps channel to band1/2/3/4/5 */
205	enum ieee80211_band band;
206
207	/* Radio/DSP gain settings for each "normal" data Tx rate.
208	 * These include, in addition to RF and DSP gain, a few fields for
209	 *   remembering/modifying gain settings (indexes). */
210	struct iwl4965_channel_power_info power_info[IWL4965_MAX_RATE];
211
212	/* FAT channel info */
213	s8 fat_max_power_avg;	/* (dBm) regul. eeprom, normal Tx, any rate */
214	s8 fat_curr_txpow;	/* (dBm) regulatory/spectrum/user (not h/w) */
215	s8 fat_min_power;	/* always 0 */
216	s8 fat_scan_power;	/* (dBm) eeprom, direct scans, any rate */
217	u8 fat_flags;		/* flags copied from EEPROM */
218	u8 fat_extension_channel; /* HT_IE_EXT_CHANNEL_* */
219
220	/* Radio/DSP gain settings for each scan rate, for directed scans. */
221	struct iwl4965_scan_power_info scan_pwr_info[IWL_NUM_SCAN_RATES];
222};
223
224struct iwl4965_clip_group {
225	/* maximum power level to prevent clipping for each rate, derived by
226	 *   us from this band's saturation power in EEPROM */
227	const s8 clip_powers[IWL_MAX_RATES];
228};
229
230#include "iwl-4965-rs.h"
231
232#define IWL_TX_FIFO_AC0	0
233#define IWL_TX_FIFO_AC1	1
234#define IWL_TX_FIFO_AC2	2
235#define IWL_TX_FIFO_AC3	3
236#define IWL_TX_FIFO_HCCA_1	5
237#define IWL_TX_FIFO_HCCA_2	6
238#define IWL_TX_FIFO_NONE	7
239
240/* Minimum number of queues. MAX_NUM is defined in hw specific files */
241#define IWL_MIN_NUM_QUEUES	4
242
243/* Power management (not Tx power) structures */
244
245enum iwl_pwr_src {
246	IWL_PWR_SRC_VMAIN,
247	IWL_PWR_SRC_VAUX,
248};
249
250#define IEEE80211_DATA_LEN              2304
251#define IEEE80211_4ADDR_LEN             30
252#define IEEE80211_HLEN                  (IEEE80211_4ADDR_LEN)
253#define IEEE80211_FRAME_LEN             (IEEE80211_DATA_LEN + IEEE80211_HLEN)
254
255struct iwl_frame {
256	union {
257		struct ieee80211_hdr frame;
258		struct iwl4965_tx_beacon_cmd beacon;
259		u8 raw[IEEE80211_FRAME_LEN];
260		u8 cmd[360];
261	} u;
262	struct list_head list;
263};
264
265#define SEQ_TO_QUEUE(x)  ((x >> 8) & 0xbf)
266#define QUEUE_TO_SEQ(x)  ((x & 0xbf) << 8)
267#define SEQ_TO_INDEX(x) ((u8)(x & 0xff))
268#define INDEX_TO_SEQ(x) ((u8)(x & 0xff))
269#define SEQ_HUGE_FRAME  (0x4000)
270#define SEQ_RX_FRAME    __constant_cpu_to_le16(0x8000)
271#define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
272#define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
273#define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
274
275enum {
276	/* CMD_SIZE_NORMAL = 0, */
277	CMD_SIZE_HUGE = (1 << 0),
278	/* CMD_SYNC = 0, */
279	CMD_ASYNC = (1 << 1),
280	/* CMD_NO_SKB = 0, */
281	CMD_WANT_SKB = (1 << 2),
282};
283
284struct iwl_cmd;
285struct iwl_priv;
286
287struct iwl_cmd_meta {
288	struct iwl_cmd_meta *source;
289	union {
290		struct sk_buff *skb;
291		int (*callback)(struct iwl_priv *priv,
292				struct iwl_cmd *cmd, struct sk_buff *skb);
293	} __attribute__ ((packed)) u;
294
295	/* The CMD_SIZE_HUGE flag bit indicates that the command
296	 * structure is stored at the end of the shared queue memory. */
297	u32 flags;
298
299} __attribute__ ((packed));
300
301#define IWL_CMD_MAX_PAYLOAD 320
302
303/**
304 * struct iwl_cmd
305 *
306 * For allocation of the command and tx queues, this establishes the overall
307 * size of the largest command we send to uCode, except for a scan command
308 * (which is relatively huge; space is allocated separately).
309 */
310struct iwl_cmd {
311	struct iwl_cmd_meta meta;	/* driver data */
312	struct iwl_cmd_header hdr;	/* uCode API */
313	union {
314		struct iwl_addsta_cmd addsta;
315		struct iwl4965_led_cmd led;
316		u32 flags;
317		u8 val8;
318		u16 val16;
319		u32 val32;
320		struct iwl4965_bt_cmd bt;
321		struct iwl4965_rxon_time_cmd rxon_time;
322		struct iwl4965_powertable_cmd powertable;
323		struct iwl4965_qosparam_cmd qosparam;
324		struct iwl_tx_cmd tx;
325		struct iwl4965_tx_beacon_cmd tx_beacon;
326		struct iwl4965_rxon_assoc_cmd rxon_assoc;
327		struct iwl_rem_sta_cmd rm_sta;
328		u8 *indirect;
329		u8 payload[IWL_CMD_MAX_PAYLOAD];
330	} __attribute__ ((packed)) cmd;
331} __attribute__ ((packed));
332
333struct iwl_host_cmd {
334	u8 id;
335	u16 len;
336	struct iwl_cmd_meta meta;
337	const void *data;
338};
339
340#define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_cmd) - \
341			      sizeof(struct iwl_cmd_meta))
342
343/*
344 * RX related structures and functions
345 */
346#define RX_FREE_BUFFERS 64
347#define RX_LOW_WATERMARK 8
348
349#define SUP_RATE_11A_MAX_NUM_CHANNELS  8
350#define SUP_RATE_11B_MAX_NUM_CHANNELS  4
351#define SUP_RATE_11G_MAX_NUM_CHANNELS  12
352
353/**
354 * struct iwl_rx_queue - Rx queue
355 * @processed: Internal index to last handled Rx packet
356 * @read: Shared index to newest available Rx buffer
357 * @write: Shared index to oldest written Rx packet
358 * @free_count: Number of pre-allocated buffers in rx_free
359 * @rx_free: list of free SKBs for use
360 * @rx_used: List of Rx buffers with no SKB
361 * @need_update: flag to indicate we need to update read/write index
362 *
363 * NOTE:  rx_free and rx_used are used as a FIFO for iwl_rx_mem_buffers
364 */
365struct iwl_rx_queue {
366	__le32 *bd;
367	dma_addr_t dma_addr;
368	struct iwl_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
369	struct iwl_rx_mem_buffer *queue[RX_QUEUE_SIZE];
370	u32 processed;
371	u32 read;
372	u32 write;
373	u32 free_count;
374	struct list_head rx_free;
375	struct list_head rx_used;
376	int need_update;
377	spinlock_t lock;
378};
379
380#define IWL_SUPPORTED_RATES_IE_LEN         8
381
382#define SCAN_INTERVAL 100
383
384#define MAX_A_CHANNELS  252
385#define MIN_A_CHANNELS  7
386
387#define MAX_B_CHANNELS  14
388#define MIN_B_CHANNELS  1
389
390#define MAX_TID_COUNT        9
391
392#define IWL_INVALID_RATE     0xFF
393#define IWL_INVALID_VALUE    -1
394
395/**
396 * struct iwl_ht_agg -- aggregation status while waiting for block-ack
397 * @txq_id: Tx queue used for Tx attempt
398 * @frame_count: # frames attempted by Tx command
399 * @wait_for_ba: Expect block-ack before next Tx reply
400 * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window
401 * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window
402 * @bitmap1: High order, one bit for each frame pending ACK in Tx window
403 * @rate_n_flags: Rate at which Tx was attempted
404 *
405 * If REPLY_TX indicates that aggregation was attempted, driver must wait
406 * for block ack (REPLY_COMPRESSED_BA).  This struct stores tx reply info
407 * until block ack arrives.
408 */
409struct iwl_ht_agg {
410	u16 txq_id;
411	u16 frame_count;
412	u16 wait_for_ba;
413	u16 start_idx;
414	u64 bitmap;
415	u32 rate_n_flags;
416#define IWL_AGG_OFF 0
417#define IWL_AGG_ON 1
418#define IWL_EMPTYING_HW_QUEUE_ADDBA 2
419#define IWL_EMPTYING_HW_QUEUE_DELBA 3
420	u8 state;
421};
422
423
424struct iwl_tid_data {
425	u16 seq_number;
426	u16 tfds_in_queue;
427	struct iwl_ht_agg agg;
428};
429
430struct iwl_hw_key {
431	enum ieee80211_key_alg alg;
432	int keylen;
433	u8 keyidx;
434	u8 key[32];
435};
436
437union iwl4965_ht_rate_supp {
438	u16 rates;
439	struct {
440		u8 siso_rate;
441		u8 mimo_rate;
442	};
443};
444
445#define CFG_HT_RX_AMPDU_FACTOR_DEF  (0x3)
446#define CFG_HT_MPDU_DENSITY_2USEC   (0x5)
447#define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_2USEC
448
449struct iwl_ht_info {
450	/* self configuration data */
451	u8 is_ht;
452	u8 supported_chan_width;
453	u16 tx_mimo_ps_mode;
454	u8 is_green_field;
455	u8 sgf;			/* HT_SHORT_GI_* short guard interval */
456	u8 max_amsdu_size;
457	u8 ampdu_factor;
458	u8 mpdu_density;
459	u8 supp_mcs_set[16];
460	/* BSS related data */
461	u8 control_channel;
462	u8 extension_chan_offset;
463	u8 tx_chan_width;
464	u8 ht_protection;
465	u8 non_GF_STA_present;
466};
467
468union iwl4965_qos_capabity {
469	struct {
470		u8 edca_count:4;	/* bit 0-3 */
471		u8 q_ack:1;		/* bit 4 */
472		u8 queue_request:1;	/* bit 5 */
473		u8 txop_request:1;	/* bit 6 */
474		u8 reserved:1;		/* bit 7 */
475	} q_AP;
476	struct {
477		u8 acvo_APSD:1;		/* bit 0 */
478		u8 acvi_APSD:1;		/* bit 1 */
479		u8 ac_bk_APSD:1;	/* bit 2 */
480		u8 ac_be_APSD:1;	/* bit 3 */
481		u8 q_ack:1;		/* bit 4 */
482		u8 max_len:2;		/* bit 5-6 */
483		u8 more_data_ack:1;	/* bit 7 */
484	} q_STA;
485	u8 val;
486};
487
488/* QoS structures */
489struct iwl4965_qos_info {
490	int qos_enable;
491	int qos_active;
492	union iwl4965_qos_capabity qos_cap;
493	struct iwl4965_qosparam_cmd def_qos_parm;
494};
495
496#define STA_PS_STATUS_WAKE             0
497#define STA_PS_STATUS_SLEEP            1
498
499struct iwl_station_entry {
500	struct iwl_addsta_cmd sta;
501	struct iwl_tid_data tid[MAX_TID_COUNT];
502	u8 used;
503	u8 ps_status;
504	struct iwl_hw_key keyinfo;
505};
506
507/* one for each uCode image (inst/data, boot/init/runtime) */
508struct fw_desc {
509	void *v_addr;		/* access by driver */
510	dma_addr_t p_addr;	/* access by card's busmaster DMA */
511	u32 len;		/* bytes */
512};
513
514/* uCode file layout */
515struct iwl4965_ucode {
516	__le32 ver;		/* major/minor/subminor */
517	__le32 inst_size;	/* bytes of runtime instructions */
518	__le32 data_size;	/* bytes of runtime data */
519	__le32 init_size;	/* bytes of initialization instructions */
520	__le32 init_data_size;	/* bytes of initialization data */
521	__le32 boot_size;	/* bytes of bootstrap instructions */
522	u8 data[0];		/* data in same order as "size" elements */
523};
524
525#define IWL_IBSS_MAC_HASH_SIZE 32
526
527struct iwl4965_ibss_seq {
528	u8 mac[ETH_ALEN];
529	u16 seq_num;
530	u16 frag_num;
531	unsigned long packet_time;
532	struct list_head list;
533};
534
535struct iwl_sensitivity_ranges {
536	u16 min_nrg_cck;
537	u16 max_nrg_cck;
538
539	u16 nrg_th_cck;
540	u16 nrg_th_ofdm;
541
542	u16 auto_corr_min_ofdm;
543	u16 auto_corr_min_ofdm_mrc;
544	u16 auto_corr_min_ofdm_x1;
545	u16 auto_corr_min_ofdm_mrc_x1;
546
547	u16 auto_corr_max_ofdm;
548	u16 auto_corr_max_ofdm_mrc;
549	u16 auto_corr_max_ofdm_x1;
550	u16 auto_corr_max_ofdm_mrc_x1;
551
552	u16 auto_corr_max_cck;
553	u16 auto_corr_max_cck_mrc;
554	u16 auto_corr_min_cck;
555	u16 auto_corr_min_cck_mrc;
556};
557
558
559#define IWL_FAT_CHANNEL_52 BIT(IEEE80211_BAND_5GHZ)
560
561/**
562 * struct iwl_hw_params
563 * @max_txq_num: Max # Tx queues supported
564 * @tx/rx_chains_num: Number of TX/RX chains
565 * @valid_tx/rx_ant: usable antennas
566 * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
567 * @max_rxq_log: Log-base-2 of max_rxq_size
568 * @rx_buf_size: Rx buffer size
569 * @max_stations:
570 * @bcast_sta_id:
571 * @fat_channel: is 40MHz width possible in band 2.4
572 * BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ)
573 * @sw_crypto: 0 for hw, 1 for sw
574 * @max_xxx_size: for ucode uses
575 * @ct_kill_threshold: temperature threshold
576 * @struct iwl_sensitivity_ranges: range of sensitivity values
577 * @first_ampdu_q: first HW queue available for ampdu
578 */
579struct iwl_hw_params {
580	u16 max_txq_num;
581	u8  tx_chains_num;
582	u8  rx_chains_num;
583	u8  valid_tx_ant;
584	u8  valid_rx_ant;
585	u16 max_rxq_size;
586	u16 max_rxq_log;
587	u32 rx_buf_size;
588	u32 max_pkt_size;
589	u8  max_stations;
590	u8  bcast_sta_id;
591	u8 fat_channel;
592	u8 sw_crypto;
593	u32 max_inst_size;
594	u32 max_data_size;
595	u32 max_bsm_size;
596	u32 ct_kill_threshold; /* value in hw-dependent units */
597	const struct iwl_sensitivity_ranges *sens;
598	u8 first_ampdu_q;
599};
600
601#define HT_SHORT_GI_20MHZ	(1 << 0)
602#define HT_SHORT_GI_40MHZ	(1 << 1)
603
604
605#define IWL_RX_HDR(x) ((struct iwl4965_rx_frame_hdr *)(\
606		       x->u.rx_frame.stats.payload + \
607		       x->u.rx_frame.stats.phy_count))
608#define IWL_RX_END(x) ((struct iwl4965_rx_frame_end *)(\
609		       IWL_RX_HDR(x)->payload + \
610		       le16_to_cpu(IWL_RX_HDR(x)->len)))
611#define IWL_RX_STATS(x) (&x->u.rx_frame.stats)
612#define IWL_RX_DATA(x) (IWL_RX_HDR(x)->payload)
613
614
615/******************************************************************************
616 *
617 * Functions implemented in iwl-base.c which are forward declared here
618 * for use by iwl-*.c
619 *
620 *****************************************************************************/
621struct iwl_addsta_cmd;
622extern int iwl_send_add_sta(struct iwl_priv *priv,
623			    struct iwl_addsta_cmd *sta, u8 flags);
624u8 iwl_add_station_flags(struct iwl_priv *priv, const u8 *addr, int is_ap,
625			 u8 flags, struct ieee80211_ht_info *ht_info);
626extern int iwl4965_is_network_packet(struct iwl_priv *priv,
627				 struct ieee80211_hdr *header);
628extern int iwl4965_power_init_handle(struct iwl_priv *priv);
629extern void iwl4965_handle_data_packet_monitor(struct iwl_priv *priv,
630					   struct iwl_rx_mem_buffer *rxb,
631					   void *data, short len,
632					   struct ieee80211_rx_status *stats,
633					   u16 phy_flags);
634extern int iwl4965_is_duplicate_packet(struct iwl_priv *priv,
635				       struct ieee80211_hdr *header);
636extern int iwl4965_calc_db_from_ratio(int sig_ratio);
637extern int iwl4965_calc_sig_qual(int rssi_dbm, int noise_dbm);
638extern unsigned int iwl4965_fill_beacon_frame(struct iwl_priv *priv,
639					struct ieee80211_hdr *hdr,
640					const u8 *dest, int left);
641extern void iwl4965_update_chain_flags(struct iwl_priv *priv);
642int iwl4965_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src);
643
644int iwl4965_init_geos(struct iwl_priv *priv);
645void iwl4965_free_geos(struct iwl_priv *priv);
646
647extern const u8 iwl_bcast_addr[ETH_ALEN];
648int iwl4965_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd);
649
650/*
651 * Currently used by iwl-3945-rs... look at restructuring so that it doesn't
652 * call this... todo... fix that.
653*/
654extern u8 iwl4965_sync_station(struct iwl_priv *priv, int sta_id,
655			   u16 tx_rate, u8 flags);
656
657/******************************************************************************
658 *
659 * Functions implemented in iwl-[34]*.c which are forward declared here
660 * for use by iwl-base.c
661 *
662 * NOTE:  The implementation of these functions are hardware specific
663 * which is why they are in the hardware specific files (vs. iwl-base.c)
664 *
665 * Naming convention --
666 * iwl4965_         <-- Its part of iwlwifi (should be changed to iwl4965_)
667 * iwl4965_hw_      <-- Hardware specific (implemented in iwl-XXXX.c by all HW)
668 * iwlXXXX_     <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
669 * iwl4965_bg_      <-- Called from work queue context
670 * iwl4965_mac_     <-- mac80211 callback
671 *
672 ****************************************************************************/
673extern void iwl4965_hw_setup_deferred_work(struct iwl_priv *priv);
674extern void iwl4965_hw_cancel_deferred_work(struct iwl_priv *priv);
675extern int iwl4965_hw_set_hw_params(struct iwl_priv *priv);
676extern int iwl_rxq_stop(struct iwl_priv *priv);
677extern void iwl_txq_ctx_stop(struct iwl_priv *priv);
678extern int iwl4965_hw_get_temperature(struct iwl_priv *priv);
679extern unsigned int iwl4965_hw_get_beacon_cmd(struct iwl_priv *priv,
680				 struct iwl_frame *frame, u8 rate);
681extern void iwl4965_hw_build_tx_cmd_rate(struct iwl_priv *priv,
682				     struct iwl_cmd *cmd,
683				     struct ieee80211_tx_info *info,
684				     struct ieee80211_hdr *hdr,
685				     int sta_id, int tx_id);
686extern void iwl4965_hw_rx_statistics(struct iwl_priv *priv,
687				 struct iwl_rx_mem_buffer *rxb);
688extern void iwl4965_disable_events(struct iwl_priv *priv);
689extern int iwl4965_get_temperature(const struct iwl_priv *priv);
690extern void iwl4965_rx_reply_rx(struct iwl_priv *priv,
691				struct iwl_rx_mem_buffer *rxb);
692
693/**
694 * iwl_find_station - Find station id for a given BSSID
695 * @bssid: MAC address of station ID to find
696 *
697 * NOTE:  This should not be hardware specific but the code has
698 * not yet been merged into a single common layer for managing the
699 * station tables.
700 */
701extern u8 iwl_find_station(struct iwl_priv *priv, const u8 *bssid);
702
703extern int iwl4965_hw_channel_switch(struct iwl_priv *priv, u16 channel);
704extern int iwl_queue_space(const struct iwl_queue *q);
705static inline int iwl_queue_used(const struct iwl_queue *q, int i)
706{
707	return q->write_ptr > q->read_ptr ?
708		(i >= q->read_ptr && i < q->write_ptr) :
709		!(i < q->read_ptr && i >= q->write_ptr);
710}
711
712
713static inline u8 get_cmd_index(struct iwl_queue *q, u32 index, int is_huge)
714{
715	/* This is for scan command, the big buffer at end of command array */
716	if (is_huge)
717		return q->n_window;	/* must be power of 2 */
718
719	/* Otherwise, use normal size buffers */
720	return index & (q->n_window - 1);
721}
722
723
724struct iwl_priv;
725
726extern int iwl4965_radio_kill_sw(struct iwl_priv *priv, int disable_radio);
727/*
728 * Forward declare iwl-4965.c functions for iwl-base.c
729 */
730extern int iwl4965_tx_queue_update_wr_ptr(struct iwl_priv *priv,
731					  struct iwl_tx_queue *txq,
732					  u16 byte_cnt);
733extern int iwl4965_alive_notify(struct iwl_priv *priv);
734extern void iwl4965_update_rate_scaling(struct iwl_priv *priv, u8 mode);
735extern void iwl4965_rf_kill_ct_config(struct iwl_priv *priv);
736
737extern void iwl4965_init_ht_hw_capab(const struct iwl_priv *priv,
738				struct ieee80211_ht_info *ht_info,
739				enum ieee80211_band band);
740int iwl4965_mac_ampdu_action(struct ieee80211_hw *hw,
741				    enum ieee80211_ampdu_mlme_action action,
742				    const u8 *addr, u16 tid, u16 *ssn);
743int iwl4965_check_empty_hw_queue(struct iwl_priv *priv, int sta_id,
744					u8 tid, int txq_id);
745
746/* Structures, enum, and defines specific to the 4965 */
747
748#define IWL_KW_SIZE 0x1000	/*4k */
749
750struct iwl_kw {
751	dma_addr_t dma_addr;
752	void *v_addr;
753	size_t size;
754};
755
756#define IWL_CHANNEL_WIDTH_20MHZ   0
757#define IWL_CHANNEL_WIDTH_40MHZ   1
758
759#define IWL_MIMO_PS_STATIC        0
760#define IWL_MIMO_PS_NONE          3
761#define IWL_MIMO_PS_DYNAMIC       1
762#define IWL_MIMO_PS_INVALID       2
763
764#define IWL_OPERATION_MODE_AUTO     0
765#define IWL_OPERATION_MODE_HT_ONLY  1
766#define IWL_OPERATION_MODE_MIXED    2
767#define IWL_OPERATION_MODE_20MHZ    3
768
769#define IWL_TX_CRC_SIZE 4
770#define IWL_TX_DELIMITER_SIZE 4
771
772#define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
773
774struct iwl4965_lq_mngr {
775	spinlock_t lock;
776	s32 max_window_size;
777	s32 *expected_tpt;
778	u8 *next_higher_rate;
779	u8 *next_lower_rate;
780	unsigned long stamp;
781	unsigned long stamp_last;
782	u32 flush_time;
783	u32 tx_packets;
784	u8 lq_ready;
785};
786
787/* Sensitivity and chain noise calibration */
788#define INTERFERENCE_DATA_AVAILABLE	__constant_cpu_to_le32(1)
789#define INITIALIZATION_VALUE		0xFFFF
790#define CAL_NUM_OF_BEACONS		20
791#define MAXIMUM_ALLOWED_PATHLOSS	15
792
793#define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
794
795#define MAX_FA_OFDM  50
796#define MIN_FA_OFDM  5
797#define MAX_FA_CCK   50
798#define MIN_FA_CCK   5
799
800#define AUTO_CORR_STEP_OFDM       1
801
802#define AUTO_CORR_STEP_CCK     3
803#define AUTO_CORR_MAX_TH_CCK   160
804
805#define NRG_DIFF               2
806#define NRG_STEP_CCK           2
807#define NRG_MARGIN             8
808#define MAX_NUMBER_CCK_NO_FA 100
809
810#define AUTO_CORR_CCK_MIN_VAL_DEF    (125)
811
812#define CHAIN_A             0
813#define CHAIN_B             1
814#define CHAIN_C             2
815#define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
816#define ALL_BAND_FILTER			0xFF00
817#define IN_BAND_FILTER			0xFF
818#define MIN_AVERAGE_NOISE_MAX_VALUE	0xFFFFFFFF
819
820#define NRG_NUM_PREV_STAT_L     20
821#define NUM_RX_CHAINS           3
822
823enum iwl4965_false_alarm_state {
824	IWL_FA_TOO_MANY = 0,
825	IWL_FA_TOO_FEW = 1,
826	IWL_FA_GOOD_RANGE = 2,
827};
828
829enum iwl4965_chain_noise_state {
830	IWL_CHAIN_NOISE_ALIVE = 0,  /* must be 0 */
831	IWL_CHAIN_NOISE_ACCUMULATE = 1,
832	IWL_CHAIN_NOISE_CALIBRATED = 2,
833};
834
835enum iwl4965_calib_enabled_state {
836	IWL_CALIB_DISABLED = 0,  /* must be 0 */
837	IWL_CALIB_ENABLED = 1,
838};
839
840struct statistics_general_data {
841	u32 beacon_silence_rssi_a;
842	u32 beacon_silence_rssi_b;
843	u32 beacon_silence_rssi_c;
844	u32 beacon_energy_a;
845	u32 beacon_energy_b;
846	u32 beacon_energy_c;
847};
848
849struct iwl_calib_results {
850	void *tx_iq_res;
851	void *tx_iq_perd_res;
852	void *lo_res;
853	u32 tx_iq_res_len;
854	u32 tx_iq_perd_res_len;
855	u32 lo_res_len;
856};
857
858enum ucode_type {
859	UCODE_NONE = 0,
860	UCODE_INIT,
861	UCODE_RT
862};
863
864/* Sensitivity calib data */
865struct iwl_sensitivity_data {
866	u32 auto_corr_ofdm;
867	u32 auto_corr_ofdm_mrc;
868	u32 auto_corr_ofdm_x1;
869	u32 auto_corr_ofdm_mrc_x1;
870	u32 auto_corr_cck;
871	u32 auto_corr_cck_mrc;
872
873	u32 last_bad_plcp_cnt_ofdm;
874	u32 last_fa_cnt_ofdm;
875	u32 last_bad_plcp_cnt_cck;
876	u32 last_fa_cnt_cck;
877
878	u32 nrg_curr_state;
879	u32 nrg_prev_state;
880	u32 nrg_value[10];
881	u8  nrg_silence_rssi[NRG_NUM_PREV_STAT_L];
882	u32 nrg_silence_ref;
883	u32 nrg_energy_idx;
884	u32 nrg_silence_idx;
885	u32 nrg_th_cck;
886	s32 nrg_auto_corr_silence_diff;
887	u32 num_in_cck_no_fa;
888	u32 nrg_th_ofdm;
889};
890
891/* Chain noise (differential Rx gain) calib data */
892struct iwl_chain_noise_data {
893	u8 state;
894	u16 beacon_count;
895	u32 chain_noise_a;
896	u32 chain_noise_b;
897	u32 chain_noise_c;
898	u32 chain_signal_a;
899	u32 chain_signal_b;
900	u32 chain_signal_c;
901	u8 disconn_array[NUM_RX_CHAINS];
902	u8 delta_gain_code[NUM_RX_CHAINS];
903	u8 radio_write;
904};
905
906#define	EEPROM_SEM_TIMEOUT 10		/* milliseconds */
907#define EEPROM_SEM_RETRY_LIMIT 1000	/* number of attempts (not time) */
908
909
910#ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
911
912enum {
913	MEASUREMENT_READY = (1 << 0),
914	MEASUREMENT_ACTIVE = (1 << 1),
915};
916
917#endif
918
919#define IWL_MAX_NUM_QUEUES	20 /* FIXME: do dynamic allocation */
920
921struct iwl_priv {
922
923	/* ieee device used by generic ieee processing code */
924	struct ieee80211_hw *hw;
925	struct ieee80211_channel *ieee_channels;
926	struct ieee80211_rate *ieee_rates;
927	struct iwl_cfg *cfg;
928
929	/* temporary frame storage list */
930	struct list_head free_frames;
931	int frames_count;
932
933	enum ieee80211_band band;
934	int alloc_rxb_skb;
935	bool add_radiotap;
936
937	void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv,
938				       struct iwl_rx_mem_buffer *rxb);
939
940	struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
941
942#ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
943	/* spectrum measurement report caching */
944	struct iwl4965_spectrum_notification measure_report;
945	u8 measurement_status;
946#endif
947	/* ucode beacon time */
948	u32 ucode_beacon_time;
949
950	/* we allocate array of iwl4965_channel_info for NIC's valid channels.
951	 *    Access via channel # using indirect index array */
952	struct iwl_channel_info *channel_info;	/* channel info array */
953	u8 channel_count;	/* # of channels */
954
955	/* each calibration channel group in the EEPROM has a derived
956	 * clip setting for each rate. */
957	const struct iwl4965_clip_group clip_groups[5];
958
959	/* thermal calibration */
960	s32 temperature;	/* degrees Kelvin */
961	s32 last_temperature;
962
963	/* init calibration results */
964	struct iwl_calib_results calib_results;
965
966	/* Scan related variables */
967	unsigned long last_scan_jiffies;
968	unsigned long next_scan_jiffies;
969	unsigned long scan_start;
970	unsigned long scan_pass_start;
971	unsigned long scan_start_tsf;
972	int scan_bands;
973	int one_direct_scan;
974	u8 direct_ssid_len;
975	u8 direct_ssid[IW_ESSID_MAX_SIZE];
976	struct iwl_scan_cmd *scan;
977
978	/* spinlock */
979	spinlock_t lock;	/* protect general shared data */
980	spinlock_t hcmd_lock;	/* protect hcmd */
981	struct mutex mutex;
982
983	/* basic pci-network driver stuff */
984	struct pci_dev *pci_dev;
985
986	/* pci hardware address support */
987	void __iomem *hw_base;
988	u32  hw_rev;
989	u32  hw_wa_rev;
990	u8   rev_id;
991
992	/* uCode images, save to reload in case of failure */
993	struct fw_desc ucode_code;	/* runtime inst */
994	struct fw_desc ucode_data;	/* runtime data original */
995	struct fw_desc ucode_data_backup;	/* runtime data save/restore */
996	struct fw_desc ucode_init;	/* initialization inst */
997	struct fw_desc ucode_init_data;	/* initialization data */
998	struct fw_desc ucode_boot;	/* bootstrap inst */
999	enum ucode_type ucode_type;
1000	u8 ucode_write_complete;	/* the image write is complete */
1001
1002
1003	struct iwl4965_rxon_time_cmd rxon_timing;
1004
1005	/* We declare this const so it can only be
1006	 * changed via explicit cast within the
1007	 * routines that actually update the physical
1008	 * hardware */
1009	const struct iwl_rxon_cmd active_rxon;
1010	struct iwl_rxon_cmd staging_rxon;
1011
1012	int error_recovering;
1013	struct iwl_rxon_cmd recovery_rxon;
1014
1015	/* 1st responses from initialize and runtime uCode images.
1016	 * 4965's initialize alive response contains some calibration data. */
1017	struct iwl_init_alive_resp card_alive_init;
1018	struct iwl_alive_resp card_alive;
1019#ifdef CONFIG_IWLWIFI_RFKILL
1020	struct iwl_rfkill_mngr rfkill_mngr;
1021#endif
1022
1023#ifdef CONFIG_IWLWIFI_LEDS
1024	struct iwl4965_led led[IWL_LED_TRG_MAX];
1025	unsigned long last_blink_time;
1026	u8 last_blink_rate;
1027	u8 allow_blinking;
1028	u64 led_tpt;
1029#endif
1030
1031	u16 active_rate;
1032	u16 active_rate_basic;
1033
1034	u8 assoc_station_added;
1035	u8 use_ant_b_for_management_frame;	/* Tx antenna selection */
1036	u8 start_calib;
1037	struct iwl_sensitivity_data sensitivity_data;
1038	struct iwl_chain_noise_data chain_noise_data;
1039	__le16 sensitivity_tbl[HD_TABLE_SIZE];
1040
1041	struct iwl_ht_info current_ht_config;
1042	u8 last_phy_res[100];
1043
1044	/* Rate scaling data */
1045	struct iwl4965_lq_mngr lq_mngr;
1046
1047	/* Rate scaling data */
1048	s8 data_retry_limit;
1049	u8 retry_rate;
1050
1051	wait_queue_head_t wait_command_queue;
1052
1053	int activity_timer_active;
1054
1055	/* Rx and Tx DMA processing queues */
1056	struct iwl_rx_queue rxq;
1057	struct iwl_tx_queue txq[IWL_MAX_NUM_QUEUES];
1058	unsigned long txq_ctx_active_msk;
1059	struct iwl_kw kw;	/* keep warm address */
1060	u32 scd_base_addr;	/* scheduler sram base address */
1061
1062	unsigned long status;
1063
1064	int last_rx_rssi;	/* From Rx packet statisitics */
1065	int last_rx_noise;	/* From beacon statistics */
1066
1067	/* counts mgmt, ctl, and data packets */
1068	struct traffic_stats {
1069		u32 cnt;
1070		u64 bytes;
1071	} tx_stats[3], rx_stats[3];
1072
1073	struct iwl_power_mgr power_data;
1074
1075	struct iwl4965_notif_statistics statistics;
1076	unsigned long last_statistics_time;
1077
1078	/* context information */
1079	u8 essid[IW_ESSID_MAX_SIZE];
1080	u8 essid_len;
1081	u16 rates_mask;
1082
1083	u32 power_mode;
1084	u32 antenna;
1085	u8 bssid[ETH_ALEN];
1086	u16 rts_threshold;
1087	u8 mac_addr[ETH_ALEN];
1088
1089	/*station table variables */
1090	spinlock_t sta_lock;
1091	int num_stations;
1092	struct iwl_station_entry stations[IWL_STATION_COUNT];
1093	struct iwl_wep_key wep_keys[WEP_KEYS_MAX];
1094	u8 default_wep_key;
1095	u8 key_mapping_key;
1096	unsigned long ucode_key_table;
1097
1098	/* Indication if ieee80211_ops->open has been called */
1099	u8 is_open;
1100
1101	u8 mac80211_registered;
1102
1103	/* Rx'd packet timing information */
1104	u32 last_beacon_time;
1105	u64 last_tsf;
1106
1107	/* Duplicate packet detection */
1108	u16 last_seq_num;
1109	u16 last_frag_num;
1110	unsigned long last_packet_time;
1111
1112	/* Hash table for finding stations in IBSS network */
1113	struct list_head ibss_mac_hash[IWL_IBSS_MAC_HASH_SIZE];
1114
1115	/* eeprom */
1116	u8 *eeprom;
1117	struct iwl_eeprom_calib_info *calib_info;
1118
1119	enum ieee80211_if_types iw_mode;
1120
1121	struct sk_buff *ibss_beacon;
1122
1123	/* Last Rx'd beacon timestamp */
1124	u64 timestamp;
1125	u16 beacon_int;
1126	struct ieee80211_vif *vif;
1127
1128	struct iwl_hw_params hw_params;
1129	/* driver/uCode shared Tx Byte Counts and Rx status */
1130	void *shared_virt;
1131	int rb_closed_offset;
1132	/* Physical Pointer to Tx Byte Counts and Rx status */
1133	dma_addr_t shared_phys;
1134
1135	/* Current association information needed to configure the
1136	 * hardware */
1137	u16 assoc_id;
1138	u16 assoc_capability;
1139	u8 ps_mode;
1140
1141	struct iwl4965_qos_info qos_data;
1142
1143	struct workqueue_struct *workqueue;
1144
1145	struct work_struct up;
1146	struct work_struct restart;
1147	struct work_struct calibrated_work;
1148	struct work_struct scan_completed;
1149	struct work_struct rx_replenish;
1150	struct work_struct rf_kill;
1151	struct work_struct abort_scan;
1152	struct work_struct update_link_led;
1153	struct work_struct auth_work;
1154	struct work_struct report_work;
1155	struct work_struct request_scan;
1156	struct work_struct beacon_update;
1157	struct work_struct set_monitor;
1158
1159	struct tasklet_struct irq_tasklet;
1160
1161	struct delayed_work init_alive_start;
1162	struct delayed_work alive_start;
1163	struct delayed_work scan_check;
1164	struct delayed_work post_associate;
1165	/* TX Power */
1166	s8 tx_power_user_lmt;
1167	s8 tx_power_channel_lmt;
1168
1169#ifdef CONFIG_PM
1170	u32 pm_state[16];
1171#endif
1172
1173#ifdef CONFIG_IWLWIFI_DEBUG
1174	/* debugging info */
1175	u32 debug_level;
1176	u32 framecnt_to_us;
1177	atomic_t restrict_refcnt;
1178#ifdef CONFIG_IWLWIFI_DEBUGFS
1179	/* debugfs */
1180	struct iwl_debugfs *dbgfs;
1181#endif /* CONFIG_IWLWIFI_DEBUGFS */
1182#endif /* CONFIG_IWLWIFI_DEBUG */
1183
1184	struct work_struct txpower_work;
1185	u32 disable_sens_cal;
1186	u32 disable_chain_noise_cal;
1187	u32 disable_tx_power_cal;
1188	struct work_struct run_time_calib_work;
1189	struct timer_list statistics_periodic;
1190}; /*iwl_priv */
1191
1192static inline void iwl_txq_ctx_activate(struct iwl_priv *priv, int txq_id)
1193{
1194	set_bit(txq_id, &priv->txq_ctx_active_msk);
1195}
1196
1197static inline void iwl_txq_ctx_deactivate(struct iwl_priv *priv, int txq_id)
1198{
1199	clear_bit(txq_id, &priv->txq_ctx_active_msk);
1200}
1201
1202#ifdef CONFIG_IWLWIF_DEBUG
1203const char *iwl_get_tx_fail_reason(u32 status);
1204#else
1205static inline const char *iwl_get_tx_fail_reason(u32 status) { return ""; }
1206#endif
1207
1208
1209static inline int iwl_get_ra_sta_id(struct iwl_priv *priv,
1210				    struct ieee80211_hdr *hdr)
1211{
1212	if (priv->iw_mode == IEEE80211_IF_TYPE_STA) {
1213		return IWL_AP_ID;
1214	} else {
1215		u8 *da = ieee80211_get_DA(hdr);
1216		return iwl_find_station(priv, da);
1217	}
1218}
1219
1220static inline struct ieee80211_hdr *iwl_tx_queue_get_hdr(struct iwl_priv *priv,
1221							 int txq_id, int idx)
1222{
1223	if (priv->txq[txq_id].txb[idx].skb[0])
1224		return (struct ieee80211_hdr *)priv->txq[txq_id].
1225				txb[idx].skb[0]->data;
1226	return NULL;
1227}
1228
1229
1230static inline int iwl_is_associated(struct iwl_priv *priv)
1231{
1232	return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
1233}
1234
1235static inline int is_channel_valid(const struct iwl_channel_info *ch_info)
1236{
1237	if (ch_info == NULL)
1238		return 0;
1239	return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
1240}
1241
1242static inline int is_channel_radar(const struct iwl_channel_info *ch_info)
1243{
1244	return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
1245}
1246
1247static inline u8 is_channel_a_band(const struct iwl_channel_info *ch_info)
1248{
1249	return ch_info->band == IEEE80211_BAND_5GHZ;
1250}
1251
1252static inline u8 is_channel_bg_band(const struct iwl_channel_info *ch_info)
1253{
1254	return ch_info->band == IEEE80211_BAND_2GHZ;
1255}
1256
1257static inline int is_channel_passive(const struct iwl_channel_info *ch)
1258{
1259	return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
1260}
1261
1262static inline int is_channel_ibss(const struct iwl_channel_info *ch)
1263{
1264	return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
1265}
1266
1267#ifdef CONFIG_IWLWIFI_DEBUG
1268static inline void iwl_print_hex_dump(struct iwl_priv *priv, int level,
1269				      void *p, u32 len)
1270{
1271	if (!(priv->debug_level & level))
1272		return;
1273
1274	print_hex_dump(KERN_DEBUG, "iwl data: ", DUMP_PREFIX_OFFSET, 16, 1,
1275			p, len, 1);
1276}
1277#else
1278static inline void iwl_print_hex_dump(struct iwl_priv *priv, int level,
1279				      void *p, u32 len)
1280{
1281}
1282#endif
1283
1284extern const struct iwl_channel_info *iwl_get_channel_info(
1285	const struct iwl_priv *priv, enum ieee80211_band band, u16 channel);
1286
1287/* Requires full declaration of iwl_priv before including */
1288
1289#endif				/* __iwl4965_4965_h__ */
1290