1 /******************************************************************************
3 * Copyright(c) 2003 - 2010 Intel Corporation. All rights reserved.
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.
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
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
18 * The full GNU General Public License is included in this distribution in the
19 * file called LICENSE.
21 * Contact Information:
22 * Intel Linux Wireless <ilw@linux.intel.com>
23 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
25 *****************************************************************************/
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.
35 #include <linux/pci.h> /* for struct pci_device_id */
36 #include <linux/kernel.h>
37 #include <net/ieee80211_radiotap.h>
39 #include "iwl-eeprom.h"
43 #include "iwl-debug.h"
44 #include "iwl-4965-hw.h"
45 #include "iwl-3945-hw.h"
46 #include "iwl-agn-hw.h"
48 #include "iwl-power.h"
49 #include "iwl-agn-rs.h"
50 #include "iwl-agn-tt.h"
54 /* CT-KILL constants */
55 #define CT_KILL_THRESHOLD_LEGACY 110 /* in Celsius */
56 #define CT_KILL_THRESHOLD 114 /* in Celsius */
57 #define CT_KILL_EXIT_THRESHOLD 95 /* in Celsius */
59 /* Default noise level to report when noise measurement is not available.
60 * This may be because we're:
61 * 1) Not associated (4965, no beacon statistics being sent to driver)
62 * 2) Scanning (noise measurement does not apply to associated channel)
63 * 3) Receiving CCK (3945 delivers noise info only for OFDM frames)
64 * Use default noise value of -127 ... this is below the range of measurable
65 * Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
66 * Also, -127 works better than 0 when averaging frames with/without
67 * noise info (e.g. averaging might be done in app); measured dBm values are
68 * always negative ... using a negative value as the default keeps all
69 * averages within an s8's (used in some apps) range of negative values. */
70 #define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
73 * RTS threshold here is total size [2347] minus 4 FCS bytes
75 * a value of 0 means RTS on all data/management packets
76 * a value > max MSDU size means no RTS
77 * else RTS for data/management frames where MPDU is larger
80 #define DEFAULT_RTS_THRESHOLD 2347U
81 #define MIN_RTS_THRESHOLD 0U
82 #define MAX_RTS_THRESHOLD 2347U
83 #define MAX_MSDU_SIZE 2304U
84 #define MAX_MPDU_SIZE 2346U
85 #define DEFAULT_BEACON_INTERVAL 100U
86 #define DEFAULT_SHORT_RETRY_LIMIT 7U
87 #define DEFAULT_LONG_RETRY_LIMIT 4U
89 struct iwl_rx_mem_buffer
{
92 struct list_head list
;
95 #define rxb_addr(r) page_address(r->page)
98 struct iwl_device_cmd
;
100 struct iwl_cmd_meta
{
101 /* only for SYNC commands, iff the reply skb is wanted */
102 struct iwl_host_cmd
*source
;
104 * only for ASYNC commands
105 * (which is somewhat stupid -- look at iwl-sta.c for instance
106 * which duplicates a bunch of code because the callback isn't
107 * invoked for SYNC commands, if it were and its result passed
108 * through it would be simpler...)
110 void (*callback
)(struct iwl_priv
*priv
,
111 struct iwl_device_cmd
*cmd
,
112 struct iwl_rx_packet
*pkt
);
114 /* The CMD_SIZE_HUGE flag bit indicates that the command
115 * structure is stored at the end of the shared queue memory. */
118 DEFINE_DMA_UNMAP_ADDR(mapping
);
119 DEFINE_DMA_UNMAP_LEN(len
);
123 * Generic queue structure
125 * Contains common data for Rx and Tx queues
128 int n_bd
; /* number of BDs in this queue */
129 int write_ptr
; /* 1-st empty entry (index) host_w*/
130 int read_ptr
; /* last used entry (index) host_r*/
131 /* use for monitoring and recovering the stuck queue */
132 int last_read_ptr
; /* storing the last read_ptr */
133 /* number of time read_ptr and last_read_ptr are the same */
134 u8 repeat_same_read_ptr
;
135 dma_addr_t dma_addr
; /* physical addr for BD's */
136 int n_window
; /* safe queue window */
138 int low_mark
; /* low watermark, resume queue if free
139 * space more than this */
140 int high_mark
; /* high watermark, stop queue if free
141 * space less than this */
144 /* One for each TFD */
147 struct iwl_rxon_context
*ctx
;
151 * struct iwl_tx_queue - Tx Queue for DMA
152 * @q: generic Rx/Tx queue descriptor
153 * @bd: base of circular buffer of TFDs
154 * @cmd: array of command/TX buffer pointers
155 * @meta: array of meta data for each command/tx buffer
156 * @dma_addr_cmd: physical address of cmd/tx buffer array
157 * @txb: array of per-TFD driver data
158 * @need_update: indicates need to update read/write index
159 * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
161 * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
162 * descriptors) and required locking structures.
164 #define TFD_TX_CMD_SLOTS 256
165 #define TFD_CMD_SLOTS 32
167 struct iwl_tx_queue
{
170 struct iwl_device_cmd
**cmd
;
171 struct iwl_cmd_meta
*meta
;
172 struct iwl_tx_info
*txb
;
179 #define IWL_NUM_SCAN_RATES (2)
181 struct iwl4965_channel_tgd_info
{
186 struct iwl4965_channel_tgh_info
{
190 #define IWL4965_MAX_RATE (33)
192 struct iwl3945_clip_group
{
193 /* maximum power level to prevent clipping for each rate, derived by
194 * us from this band's saturation power in EEPROM */
195 const s8 clip_powers
[IWL_MAX_RATES
];
198 /* current Tx power values to use, one for each rate for each channel.
199 * requested power is limited by:
200 * -- regulatory EEPROM limits for this channel
201 * -- hardware capabilities (clip-powers)
202 * -- spectrum management
203 * -- user preference (e.g. iwconfig)
204 * when requested power is set, base power index must also be set. */
205 struct iwl3945_channel_power_info
{
206 struct iwl3945_tx_power tpc
; /* actual radio and DSP gain settings */
207 s8 power_table_index
; /* actual (compenst'd) index into gain table */
208 s8 base_power_index
; /* gain index for power at factory temp. */
209 s8 requested_power
; /* power (dBm) requested for this chnl/rate */
212 /* current scan Tx power values to use, one for each scan rate for each
214 struct iwl3945_scan_power_info
{
215 struct iwl3945_tx_power tpc
; /* actual radio and DSP gain settings */
216 s8 power_table_index
; /* actual (compenst'd) index into gain table */
217 s8 requested_power
; /* scan pwr (dBm) requested for chnl/rate */
221 * One for each channel, holds all channel setup data
222 * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
225 struct iwl_channel_info
{
226 struct iwl4965_channel_tgd_info tgd
;
227 struct iwl4965_channel_tgh_info tgh
;
228 struct iwl_eeprom_channel eeprom
; /* EEPROM regulatory limit */
229 struct iwl_eeprom_channel ht40_eeprom
; /* EEPROM regulatory limit for
232 u8 channel
; /* channel number */
233 u8 flags
; /* flags copied from EEPROM */
234 s8 max_power_avg
; /* (dBm) regul. eeprom, normal Tx, any rate */
235 s8 curr_txpow
; /* (dBm) regulatory/spectrum/user (not h/w) limit */
236 s8 min_power
; /* always 0 */
237 s8 scan_power
; /* (dBm) regul. eeprom, direct scans, any rate */
239 u8 group_index
; /* 0-4, maps channel to group1/2/3/4/5 */
240 u8 band_index
; /* 0-4, maps channel to band1/2/3/4/5 */
241 enum ieee80211_band band
;
243 /* HT40 channel info */
244 s8 ht40_max_power_avg
; /* (dBm) regul. eeprom, normal Tx, any rate */
245 u8 ht40_flags
; /* flags copied from EEPROM */
246 u8 ht40_extension_channel
; /* HT_IE_EXT_CHANNEL_* */
248 /* Radio/DSP gain settings for each "normal" data Tx rate.
249 * These include, in addition to RF and DSP gain, a few fields for
250 * remembering/modifying gain settings (indexes). */
251 struct iwl3945_channel_power_info power_info
[IWL4965_MAX_RATE
];
253 /* Radio/DSP gain settings for each scan rate, for directed scans. */
254 struct iwl3945_scan_power_info scan_pwr_info
[IWL_NUM_SCAN_RATES
];
257 #define IWL_TX_FIFO_BK 0 /* shared */
258 #define IWL_TX_FIFO_BE 1
259 #define IWL_TX_FIFO_VI 2 /* shared */
260 #define IWL_TX_FIFO_VO 3
261 #define IWL_TX_FIFO_BK_IPAN IWL_TX_FIFO_BK
262 #define IWL_TX_FIFO_BE_IPAN 4
263 #define IWL_TX_FIFO_VI_IPAN IWL_TX_FIFO_VI
264 #define IWL_TX_FIFO_VO_IPAN 5
265 #define IWL_TX_FIFO_UNUSED -1
267 /* Minimum number of queues. MAX_NUM is defined in hw specific files.
268 * Set the minimum to accommodate the 4 standard TX queues, 1 command
269 * queue, 2 (unused) HCCA queues, and 4 HT queues (one for each AC) */
270 #define IWL_MIN_NUM_QUEUES 10
273 * Command queue depends on iPAN support.
275 #define IWL_DEFAULT_CMD_QUEUE_NUM 4
276 #define IWL_IPAN_CMD_QUEUE_NUM 9
279 * This queue number is required for proper operation
280 * because the ucode will stop/start the scheduler as
283 #define IWL_IPAN_MCAST_QUEUE 8
285 #define IEEE80211_DATA_LEN 2304
286 #define IEEE80211_4ADDR_LEN 30
287 #define IEEE80211_HLEN (IEEE80211_4ADDR_LEN)
288 #define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
292 struct ieee80211_hdr frame
;
293 struct iwl_tx_beacon_cmd beacon
;
294 u8 raw
[IEEE80211_FRAME_LEN
];
297 struct list_head list
;
300 #define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
301 #define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
302 #define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
308 CMD_SIZE_HUGE
= (1 << 0),
309 CMD_ASYNC
= (1 << 1),
310 CMD_WANT_SKB
= (1 << 2),
313 #define DEF_CMD_PAYLOAD_SIZE 320
316 * struct iwl_device_cmd
318 * For allocation of the command and tx queues, this establishes the overall
319 * size of the largest command we send to uCode, except for a scan command
320 * (which is relatively huge; space is allocated separately).
322 struct iwl_device_cmd
{
323 struct iwl_cmd_header hdr
; /* uCode API */
329 struct iwl_tx_cmd tx
;
330 struct iwl6000_channel_switch_cmd chswitch
;
331 u8 payload
[DEF_CMD_PAYLOAD_SIZE
];
335 #define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_device_cmd))
338 struct iwl_host_cmd
{
340 unsigned long reply_page
;
341 void (*callback
)(struct iwl_priv
*priv
,
342 struct iwl_device_cmd
*cmd
,
343 struct iwl_rx_packet
*pkt
);
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
354 * struct iwl_rx_queue - Rx queue
355 * @bd: driver's pointer to buffer of receive buffer descriptors (rbd)
356 * @bd_dma: bus address of buffer of receive buffer descriptors (rbd)
357 * @read: Shared index to newest available Rx buffer
358 * @write: Shared index to oldest written Rx packet
359 * @free_count: Number of pre-allocated buffers in rx_free
360 * @rx_free: list of free SKBs for use
361 * @rx_used: List of Rx buffers with no SKB
362 * @need_update: flag to indicate we need to update read/write index
363 * @rb_stts: driver's pointer to receive buffer status
364 * @rb_stts_dma: bus address of receive buffer status
366 * NOTE: rx_free and rx_used are used as a FIFO for iwl_rx_mem_buffers
368 struct iwl_rx_queue
{
371 struct iwl_rx_mem_buffer pool
[RX_QUEUE_SIZE
+ RX_FREE_BUFFERS
];
372 struct iwl_rx_mem_buffer
*queue
[RX_QUEUE_SIZE
];
377 struct list_head rx_free
;
378 struct list_head rx_used
;
380 struct iwl_rb_status
*rb_stts
;
381 dma_addr_t rb_stts_dma
;
385 #define IWL_SUPPORTED_RATES_IE_LEN 8
387 #define MAX_TID_COUNT 9
389 #define IWL_INVALID_RATE 0xFF
390 #define IWL_INVALID_VALUE -1
393 * struct iwl_ht_agg -- aggregation status while waiting for block-ack
394 * @txq_id: Tx queue used for Tx attempt
395 * @frame_count: # frames attempted by Tx command
396 * @wait_for_ba: Expect block-ack before next Tx reply
397 * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window
398 * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window
399 * @bitmap1: High order, one bit for each frame pending ACK in Tx window
400 * @rate_n_flags: Rate at which Tx was attempted
402 * If REPLY_TX indicates that aggregation was attempted, driver must wait
403 * for block ack (REPLY_COMPRESSED_BA). This struct stores tx reply info
404 * until block ack arrives.
413 #define IWL_AGG_OFF 0
415 #define IWL_EMPTYING_HW_QUEUE_ADDBA 2
416 #define IWL_EMPTYING_HW_QUEUE_DELBA 3
421 struct iwl_tid_data
{
422 u16 seq_number
; /* agn only */
424 struct iwl_ht_agg agg
;
434 union iwl_ht_rate_supp
{
442 #define CFG_HT_RX_AMPDU_FACTOR_8K (0x0)
443 #define CFG_HT_RX_AMPDU_FACTOR_16K (0x1)
444 #define CFG_HT_RX_AMPDU_FACTOR_32K (0x2)
445 #define CFG_HT_RX_AMPDU_FACTOR_64K (0x3)
446 #define CFG_HT_RX_AMPDU_FACTOR_DEF CFG_HT_RX_AMPDU_FACTOR_64K
447 #define CFG_HT_RX_AMPDU_FACTOR_MAX CFG_HT_RX_AMPDU_FACTOR_64K
448 #define CFG_HT_RX_AMPDU_FACTOR_MIN CFG_HT_RX_AMPDU_FACTOR_8K
451 * Maximal MPDU density for TX aggregation
457 #define CFG_HT_MPDU_DENSITY_2USEC (0x4)
458 #define CFG_HT_MPDU_DENSITY_4USEC (0x5)
459 #define CFG_HT_MPDU_DENSITY_8USEC (0x6)
460 #define CFG_HT_MPDU_DENSITY_16USEC (0x7)
461 #define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_4USEC
462 #define CFG_HT_MPDU_DENSITY_MAX CFG_HT_MPDU_DENSITY_16USEC
463 #define CFG_HT_MPDU_DENSITY_MIN (0x1)
465 struct iwl_ht_config
{
466 bool single_chain_sufficient
;
467 enum ieee80211_smps_mode smps
; /* current smps mode */
471 struct iwl_qos_info
{
473 struct iwl_qosparam_cmd def_qos_parm
;
477 * Structure should be accessed with sta_lock held. When station addition
478 * is in progress (IWL_STA_UCODE_INPROGRESS) it is possible to access only
479 * the commands (iwl_addsta_cmd and iwl_link_quality_cmd) without sta_lock
482 struct iwl_station_entry
{
483 struct iwl_addsta_cmd sta
;
484 struct iwl_tid_data tid
[MAX_TID_COUNT
];
486 struct iwl_hw_key keyinfo
;
487 struct iwl_link_quality_cmd
*lq
;
490 struct iwl_station_priv_common
{
491 struct iwl_rxon_context
*ctx
;
496 * iwl_station_priv: Driver's private station information
498 * When mac80211 creates a station it reserves some space (hw->sta_data_size)
499 * in the structure for use by driver. This structure is places in that
502 * The common struct MUST be first because it is shared between
505 struct iwl_station_priv
{
506 struct iwl_station_priv_common common
;
507 struct iwl_lq_sta lq_sta
;
508 atomic_t pending_frames
;
514 * struct iwl_vif_priv - driver's private per-interface information
516 * When mac80211 allocates a virtual interface, it can allocate
517 * space for us to put data into.
519 struct iwl_vif_priv
{
520 struct iwl_rxon_context
*ctx
;
521 u8 ibss_bssid_sta_id
;
524 /* one for each uCode image (inst/data, boot/init/runtime) */
526 void *v_addr
; /* access by driver */
527 dma_addr_t p_addr
; /* access by card's busmaster DMA */
531 /* v1/v2 uCode file layout */
532 struct iwl_ucode_header
{
533 __le32 ver
; /* major/minor/API/serial */
536 __le32 inst_size
; /* bytes of runtime code */
537 __le32 data_size
; /* bytes of runtime data */
538 __le32 init_size
; /* bytes of init code */
539 __le32 init_data_size
; /* bytes of init data */
540 __le32 boot_size
; /* bytes of bootstrap code */
541 u8 data
[0]; /* in same order as sizes */
544 __le32 build
; /* build number */
545 __le32 inst_size
; /* bytes of runtime code */
546 __le32 data_size
; /* bytes of runtime data */
547 __le32 init_size
; /* bytes of init code */
548 __le32 init_data_size
; /* bytes of init data */
549 __le32 boot_size
; /* bytes of bootstrap code */
550 u8 data
[0]; /* in same order as sizes */
556 * new TLV uCode file layout
558 * The new TLV file format contains TLVs, that each specify
559 * some piece of data. To facilitate "groups", for example
560 * different instruction image with different capabilities,
561 * bundled with the same init image, an alternative mechanism
563 * When the alternative field is 0, that means that the item
564 * is always valid. When it is non-zero, then it is only
565 * valid in conjunction with items of the same alternative,
566 * in which case the driver (user) selects one alternative
570 enum iwl_ucode_tlv_type
{
571 IWL_UCODE_TLV_INVALID
= 0, /* unused */
572 IWL_UCODE_TLV_INST
= 1,
573 IWL_UCODE_TLV_DATA
= 2,
574 IWL_UCODE_TLV_INIT
= 3,
575 IWL_UCODE_TLV_INIT_DATA
= 4,
576 IWL_UCODE_TLV_BOOT
= 5,
577 IWL_UCODE_TLV_PROBE_MAX_LEN
= 6, /* a u32 value */
578 IWL_UCODE_TLV_PAN
= 7,
579 IWL_UCODE_TLV_RUNT_EVTLOG_PTR
= 8,
580 IWL_UCODE_TLV_RUNT_EVTLOG_SIZE
= 9,
581 IWL_UCODE_TLV_RUNT_ERRLOG_PTR
= 10,
582 IWL_UCODE_TLV_INIT_EVTLOG_PTR
= 11,
583 IWL_UCODE_TLV_INIT_EVTLOG_SIZE
= 12,
584 IWL_UCODE_TLV_INIT_ERRLOG_PTR
= 13,
585 IWL_UCODE_TLV_ENHANCE_SENS_TBL
= 14,
586 IWL_UCODE_TLV_PHY_CALIBRATION_SIZE
= 15,
589 struct iwl_ucode_tlv
{
590 __le16 type
; /* see above */
591 __le16 alternative
; /* see comment */
592 __le32 length
; /* not including type/length fields */
596 #define IWL_TLV_UCODE_MAGIC 0x0a4c5749
598 struct iwl_tlv_ucode_header
{
600 * The TLV style ucode header is distinguished from
601 * the v1/v2 style header by first four bytes being
602 * zero, as such is an invalid combination of
603 * major/minor/API/serial versions.
607 u8 human_readable
[64];
608 __le32 ver
; /* major/minor/API/serial */
610 __le64 alternatives
; /* bitmask of valid alternatives */
612 * The data contained herein has a TLV layout,
613 * see above for the TLV header and types.
614 * Note that each TLV is padded to a length
615 * that is a multiple of 4 for alignment.
620 struct iwl4965_ibss_seq
{
624 unsigned long packet_time
;
625 struct list_head list
;
628 struct iwl_sensitivity_ranges
{
635 u16 auto_corr_min_ofdm
;
636 u16 auto_corr_min_ofdm_mrc
;
637 u16 auto_corr_min_ofdm_x1
;
638 u16 auto_corr_min_ofdm_mrc_x1
;
640 u16 auto_corr_max_ofdm
;
641 u16 auto_corr_max_ofdm_mrc
;
642 u16 auto_corr_max_ofdm_x1
;
643 u16 auto_corr_max_ofdm_mrc_x1
;
645 u16 auto_corr_max_cck
;
646 u16 auto_corr_max_cck_mrc
;
647 u16 auto_corr_min_cck
;
648 u16 auto_corr_min_cck_mrc
;
650 u16 barker_corr_th_min
;
651 u16 barker_corr_th_min_mrc
;
656 #define KELVIN_TO_CELSIUS(x) ((x)-273)
657 #define CELSIUS_TO_KELVIN(x) ((x)+273)
661 * struct iwl_hw_params
662 * @max_txq_num: Max # Tx queues supported
663 * @dma_chnl_num: Number of Tx DMA/FIFO channels
664 * @scd_bc_tbls_size: size of scheduler byte count tables
665 * @tfd_size: TFD size
666 * @tx/rx_chains_num: Number of TX/RX chains
667 * @valid_tx/rx_ant: usable antennas
668 * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
669 * @max_rxq_log: Log-base-2 of max_rxq_size
670 * @rx_page_order: Rx buffer page order
671 * @rx_wrt_ptr_reg: FH{39}_RSCSR_CHNL0_WPTR
673 * @ht40_channel: is 40MHz width possible in band 2.4
674 * BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ)
675 * @sw_crypto: 0 for hw, 1 for sw
676 * @max_xxx_size: for ucode uses
677 * @ct_kill_threshold: temperature threshold
678 * @beacon_time_tsf_bits: number of valid tsf bits for beacon time
679 * @calib_init_cfg: setup initial calibrations for the hw
680 * @calib_rt_cfg: setup runtime calibrations for the hw
681 * @struct iwl_sensitivity_ranges: range of sensitivity values
683 struct iwl_hw_params
{
686 u16 scd_bc_tbls_size
;
698 u8 max_beacon_itrvl
; /* in 1024 ms */
702 u32 ct_kill_threshold
; /* value in hw-dependent units */
703 u32 ct_kill_exit_threshold
; /* value in hw-dependent units */
704 /* for 1000, 6000 series and up */
705 u16 beacon_time_tsf_bits
;
708 const struct iwl_sensitivity_ranges
*sens
;
712 /******************************************************************************
714 * Functions implemented in core module which are forward declared here
715 * for use by iwl-[4-5].c
717 * NOTE: The implementation of these functions are not hardware specific
718 * which is why they are in the core module files.
720 * Naming convention --
721 * iwl_ <-- Is part of iwlwifi
722 * iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
723 * iwl4965_bg_ <-- Called from work queue context
724 * iwl4965_mac_ <-- mac80211 callback
726 ****************************************************************************/
727 extern void iwl_update_chain_flags(struct iwl_priv
*priv
);
728 extern const u8 iwl_bcast_addr
[ETH_ALEN
];
729 extern int iwl_rxq_stop(struct iwl_priv
*priv
);
730 extern void iwl_txq_ctx_stop(struct iwl_priv
*priv
);
731 extern int iwl_queue_space(const struct iwl_queue
*q
);
732 static inline int iwl_queue_used(const struct iwl_queue
*q
, int i
)
734 return q
->write_ptr
>= q
->read_ptr
?
735 (i
>= q
->read_ptr
&& i
< q
->write_ptr
) :
736 !(i
< q
->read_ptr
&& i
>= q
->write_ptr
);
740 static inline u8
get_cmd_index(struct iwl_queue
*q
, u32 index
, int is_huge
)
743 * This is for init calibration result and scan command which
744 * required buffer > TFD_MAX_PAYLOAD_SIZE,
745 * the big buffer at end of command array
748 return q
->n_window
; /* must be power of 2 */
750 /* Otherwise, use normal size buffers */
751 return index
& (q
->n_window
- 1);
761 #define IWL_OPERATION_MODE_AUTO 0
762 #define IWL_OPERATION_MODE_HT_ONLY 1
763 #define IWL_OPERATION_MODE_MIXED 2
764 #define IWL_OPERATION_MODE_20MHZ 3
766 #define IWL_TX_CRC_SIZE 4
767 #define IWL_TX_DELIMITER_SIZE 4
769 #define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
771 /* Sensitivity and chain noise calibration */
772 #define INITIALIZATION_VALUE 0xFFFF
773 #define IWL4965_CAL_NUM_BEACONS 20
774 #define IWL_CAL_NUM_BEACONS 16
775 #define MAXIMUM_ALLOWED_PATHLOSS 15
777 #define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
779 #define MAX_FA_OFDM 50
780 #define MIN_FA_OFDM 5
781 #define MAX_FA_CCK 50
784 #define AUTO_CORR_STEP_OFDM 1
786 #define AUTO_CORR_STEP_CCK 3
787 #define AUTO_CORR_MAX_TH_CCK 160
790 #define NRG_STEP_CCK 2
792 #define MAX_NUMBER_CCK_NO_FA 100
794 #define AUTO_CORR_CCK_MIN_VAL_DEF (125)
799 #define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
800 #define ALL_BAND_FILTER 0xFF00
801 #define IN_BAND_FILTER 0xFF
802 #define MIN_AVERAGE_NOISE_MAX_VALUE 0xFFFFFFFF
804 #define NRG_NUM_PREV_STAT_L 20
805 #define NUM_RX_CHAINS 3
807 enum iwl4965_false_alarm_state
{
810 IWL_FA_GOOD_RANGE
= 2,
813 enum iwl4965_chain_noise_state
{
814 IWL_CHAIN_NOISE_ALIVE
= 0, /* must be 0 */
815 IWL_CHAIN_NOISE_ACCUMULATE
,
816 IWL_CHAIN_NOISE_CALIBRATED
,
817 IWL_CHAIN_NOISE_DONE
,
820 enum iwl4965_calib_enabled_state
{
821 IWL_CALIB_DISABLED
= 0, /* must be 0 */
822 IWL_CALIB_ENABLED
= 1,
828 * defines the order in which results of initial calibrations
829 * should be sent to the runtime uCode
836 IWL_CALIB_TX_IQ_PERD
,
838 IWL_CALIB_TEMP_OFFSET
,
842 /* Opaque calibration results */
843 struct iwl_calib_result
{
854 /* Sensitivity calib data */
855 struct iwl_sensitivity_data
{
857 u32 auto_corr_ofdm_mrc
;
858 u32 auto_corr_ofdm_x1
;
859 u32 auto_corr_ofdm_mrc_x1
;
861 u32 auto_corr_cck_mrc
;
863 u32 last_bad_plcp_cnt_ofdm
;
864 u32 last_fa_cnt_ofdm
;
865 u32 last_bad_plcp_cnt_cck
;
871 u8 nrg_silence_rssi
[NRG_NUM_PREV_STAT_L
];
876 s32 nrg_auto_corr_silence_diff
;
877 u32 num_in_cck_no_fa
;
880 u16 barker_corr_th_min
;
881 u16 barker_corr_th_min_mrc
;
885 /* Chain noise (differential Rx gain) calib data */
886 struct iwl_chain_noise_data
{
895 u8 disconn_array
[NUM_RX_CHAINS
];
896 u8 delta_gain_code
[NUM_RX_CHAINS
];
901 #define EEPROM_SEM_TIMEOUT 10 /* milliseconds */
902 #define EEPROM_SEM_RETRY_LIMIT 1000 /* number of attempts (not time) */
904 #define IWL_TRAFFIC_ENTRIES (256)
905 #define IWL_TRAFFIC_ENTRY_SIZE (64)
908 MEASUREMENT_READY
= (1 << 0),
909 MEASUREMENT_ACTIVE
= (1 << 1),
913 NVM_DEVICE_TYPE_EEPROM
= 0,
918 * Two types of OTP memory access modes
919 * IWL_OTP_ACCESS_ABSOLUTE - absolute address mode,
920 * based on physical memory addressing
921 * IWL_OTP_ACCESS_RELATIVE - relative address mode,
922 * based on logical memory addressing
924 enum iwl_access_mode
{
925 IWL_OTP_ACCESS_ABSOLUTE
,
926 IWL_OTP_ACCESS_RELATIVE
,
930 * enum iwl_pa_type - Power Amplifier type
931 * @IWL_PA_SYSTEM: based on uCode configuration
932 * @IWL_PA_INTERNAL: use Internal only
939 /* interrupt statistics */
940 struct isr_statistics
{
950 u32 rx_handlers
[REPLY_MAX
];
955 /* reply_tx_statistics (for _agn devices) */
956 struct reply_tx_error_statistics
{
962 u32 int_crossed_retry
;
978 u32 sta_color_mismatch
;
982 /* reply_agg_tx_statistics (for _agn devices) */
983 struct reply_agg_tx_error_statistics
{
990 u32 last_sent_bt_kill
;
999 #ifdef CONFIG_IWLWIFI_DEBUGFS
1000 /* management statistics */
1001 enum iwl_mgmt_stats
{
1002 MANAGEMENT_ASSOC_REQ
= 0,
1003 MANAGEMENT_ASSOC_RESP
,
1004 MANAGEMENT_REASSOC_REQ
,
1005 MANAGEMENT_REASSOC_RESP
,
1006 MANAGEMENT_PROBE_REQ
,
1007 MANAGEMENT_PROBE_RESP
,
1010 MANAGEMENT_DISASSOC
,
1016 /* control statistics */
1017 enum iwl_ctrl_stats
{
1018 CONTROL_BACK_REQ
= 0,
1029 struct traffic_stats
{
1030 u32 mgmt
[MANAGEMENT_MAX
];
1031 u32 ctrl
[CONTROL_MAX
];
1036 struct traffic_stats
{
1042 * iwl_switch_rxon: "channel switch" structure
1044 * @ switch_in_progress: channel switch in progress
1045 * @ channel: new channel
1047 struct iwl_switch_rxon
{
1048 bool switch_in_progress
;
1053 * schedule the timer to wake up every UCODE_TRACE_PERIOD milliseconds
1054 * to perform continuous uCode event logging operation if enabled
1056 #define UCODE_TRACE_PERIOD (100)
1059 * iwl_event_log: current uCode event log position
1061 * @ucode_trace: enable/disable ucode continuous trace timer
1062 * @num_wraps: how many times the event buffer wraps
1063 * @next_entry: the entry just before the next one that uCode would fill
1064 * @non_wraps_count: counter for no wrap detected when dump ucode events
1065 * @wraps_once_count: counter for wrap once detected when dump ucode events
1066 * @wraps_more_count: counter for wrap more than once detected
1067 * when dump ucode events
1069 struct iwl_event_log
{
1073 int non_wraps_count
;
1074 int wraps_once_count
;
1075 int wraps_more_count
;
1079 * host interrupt timeout value
1080 * used with setting interrupt coalescing timer
1081 * the CSR_INT_COALESCING is an 8 bit register in 32-usec unit
1083 * default interrupt coalescing timer is 64 x 32 = 2048 usecs
1084 * default interrupt coalescing calibration timer is 16 x 32 = 512 usecs
1086 #define IWL_HOST_INT_TIMEOUT_MAX (0xFF)
1087 #define IWL_HOST_INT_TIMEOUT_DEF (0x40)
1088 #define IWL_HOST_INT_TIMEOUT_MIN (0x0)
1089 #define IWL_HOST_INT_CALIB_TIMEOUT_MAX (0xFF)
1090 #define IWL_HOST_INT_CALIB_TIMEOUT_DEF (0x10)
1091 #define IWL_HOST_INT_CALIB_TIMEOUT_MIN (0x0)
1094 * This is the threshold value of plcp error rate per 100mSecs. It is
1095 * used to set and check for the validity of plcp_delta.
1097 #define IWL_MAX_PLCP_ERR_THRESHOLD_MIN (1)
1098 #define IWL_MAX_PLCP_ERR_THRESHOLD_DEF (50)
1099 #define IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF (100)
1100 #define IWL_MAX_PLCP_ERR_EXT_LONG_THRESHOLD_DEF (200)
1101 #define IWL_MAX_PLCP_ERR_THRESHOLD_MAX (255)
1102 #define IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE (0)
1104 #define IWL_DELAY_NEXT_FORCE_RF_RESET (HZ*3)
1105 #define IWL_DELAY_NEXT_FORCE_FW_RELOAD (HZ*5)
1107 /* timer constants use to monitor and recover stuck tx queues in mSecs */
1108 #define IWL_DEF_MONITORING_PERIOD (1000)
1109 #define IWL_LONG_MONITORING_PERIOD (5000)
1110 #define IWL_ONE_HUNDRED_MSECS (100)
1111 #define IWL_MAX_MONITORING_PERIOD (60000)
1113 /* BT Antenna Coupling Threshold (dB) */
1114 #define IWL_BT_ANTENNA_COUPLING_THRESHOLD (35)
1119 IWL_MAX_FORCE_RESET
,
1122 struct iwl_force_reset
{
1123 int reset_request_count
;
1124 int reset_success_count
;
1125 int reset_reject_count
;
1126 unsigned long reset_duration
;
1127 unsigned long last_force_reset_jiffies
;
1130 /* extend beacon time format bit shifting */
1133 * bits 31:24 - extended
1134 * bits 23:0 - interval
1136 #define IWL3945_EXT_BEACON_TIME_POS 24
1139 * bits 31:22 - extended
1140 * bits 21:0 - interval
1142 #define IWLAGN_EXT_BEACON_TIME_POS 22
1144 enum iwl_rxon_context_id
{
1151 struct iwl_rxon_context
{
1152 struct ieee80211_vif
*vif
;
1154 const u8
*ac_to_fifo
;
1155 const u8
*ac_to_queue
;
1159 * We could use the vif to indicate active, but we
1160 * also need it to be active during disabling when
1161 * we already removed the vif for type setting.
1163 bool always_active
, is_active
;
1165 bool ht_need_multiple_chains
;
1167 enum iwl_rxon_context_id ctxid
;
1169 u32 interface_modes
, exclusive_interface_modes
;
1170 u8 unused_devtype
, ap_devtype
, ibss_devtype
, station_devtype
;
1173 * We declare this const so it can only be
1174 * changed via explicit cast within the
1175 * routines that actually update the physical
1178 const struct iwl_rxon_cmd active
;
1179 struct iwl_rxon_cmd staging
;
1181 struct iwl_rxon_time_cmd timing
;
1183 struct iwl_qos_info qos_data
;
1185 u8 bcast_sta_id
, ap_sta_id
;
1187 u8 rxon_cmd
, rxon_assoc_cmd
, rxon_timing_cmd
;
1191 struct iwl_wep_key wep_keys
[WEP_KEYS_MAX
];
1192 u8 key_mapping_keys
;
1194 __le32 station_flags
;
1197 bool non_gf_sta_present
;
1199 bool enabled
, is_40mhz
;
1200 u8 extension_chan_offset
;
1206 /* ieee device used by generic ieee processing code */
1207 struct ieee80211_hw
*hw
;
1208 struct ieee80211_channel
*ieee_channels
;
1209 struct ieee80211_rate
*ieee_rates
;
1210 struct iwl_cfg
*cfg
;
1212 /* temporary frame storage list */
1213 struct list_head free_frames
;
1216 enum ieee80211_band band
;
1219 void (*rx_handlers
[REPLY_MAX
])(struct iwl_priv
*priv
,
1220 struct iwl_rx_mem_buffer
*rxb
);
1222 struct ieee80211_supported_band bands
[IEEE80211_NUM_BANDS
];
1224 /* spectrum measurement report caching */
1225 struct iwl_spectrum_notification measure_report
;
1226 u8 measurement_status
;
1228 /* ucode beacon time */
1229 u32 ucode_beacon_time
;
1230 int missed_beacon_threshold
;
1232 /* track IBSS manager (last beacon) status */
1235 /* storing the jiffies when the plcp error rate is received */
1236 unsigned long plcp_jiffies
;
1239 struct iwl_force_reset force_reset
[IWL_MAX_FORCE_RESET
];
1241 /* we allocate array of iwl_channel_info for NIC's valid channels.
1242 * Access via channel # using indirect index array */
1243 struct iwl_channel_info
*channel_info
; /* channel info array */
1244 u8 channel_count
; /* # of channels */
1246 /* thermal calibration */
1247 s32 temperature
; /* degrees Kelvin */
1248 s32 last_temperature
;
1250 /* init calibration results */
1251 struct iwl_calib_result calib_results
[IWL_CALIB_MAX
];
1253 /* Scan related variables */
1254 unsigned long scan_start
;
1255 unsigned long scan_start_tsf
;
1257 enum ieee80211_band scan_band
;
1258 struct cfg80211_scan_request
*scan_request
;
1259 struct ieee80211_vif
*scan_vif
;
1260 bool is_internal_short_scan
;
1261 u8 scan_tx_ant
[IEEE80211_NUM_BANDS
];
1265 spinlock_t lock
; /* protect general shared data */
1266 spinlock_t hcmd_lock
; /* protect hcmd */
1267 spinlock_t reg_lock
; /* protect hw register access */
1269 struct mutex sync_cmd_mutex
; /* enable serialization of sync commands */
1271 /* basic pci-network driver stuff */
1272 struct pci_dev
*pci_dev
;
1274 /* pci hardware address support */
1275 void __iomem
*hw_base
;
1280 /* microcode/device supports multiple contexts */
1283 /* command queue number */
1286 /* max number of station keys */
1289 /* EEPROM MAC addresses */
1290 struct mac_address addresses
[2];
1292 /* uCode images, save to reload in case of failure */
1293 int fw_index
; /* firmware we're trying to load */
1294 u32 ucode_ver
; /* version of ucode, copy of
1296 struct fw_desc ucode_code
; /* runtime inst */
1297 struct fw_desc ucode_data
; /* runtime data original */
1298 struct fw_desc ucode_data_backup
; /* runtime data save/restore */
1299 struct fw_desc ucode_init
; /* initialization inst */
1300 struct fw_desc ucode_init_data
; /* initialization data */
1301 struct fw_desc ucode_boot
; /* bootstrap inst */
1302 enum ucode_type ucode_type
;
1303 u8 ucode_write_complete
; /* the image write is complete */
1304 char firmware_name
[25];
1306 struct iwl_rxon_context contexts
[NUM_IWL_RXON_CTX
];
1308 struct iwl_switch_rxon switch_rxon
;
1310 /* 1st responses from initialize and runtime uCode images.
1311 * _agn's initialize alive response contains some calibration data. */
1312 struct iwl_init_alive_resp card_alive_init
;
1313 struct iwl_alive_resp card_alive
;
1315 unsigned long last_blink_time
;
1323 struct iwl_sensitivity_data sensitivity_data
;
1324 struct iwl_chain_noise_data chain_noise_data
;
1325 bool enhance_sensitivity_table
;
1326 __le16 sensitivity_tbl
[HD_TABLE_SIZE
];
1327 __le16 enhance_sensitivity_tbl
[ENHANCE_HD_TABLE_ENTRIES
];
1329 struct iwl_ht_config current_ht_config
;
1331 /* Rate scaling data */
1334 wait_queue_head_t wait_command_queue
;
1336 int activity_timer_active
;
1338 /* Rx and Tx DMA processing queues */
1339 struct iwl_rx_queue rxq
;
1340 struct iwl_tx_queue
*txq
;
1341 unsigned long txq_ctx_active_msk
;
1342 struct iwl_dma_ptr kw
; /* keep warm address */
1343 struct iwl_dma_ptr scd_bc_tbls
;
1345 u32 scd_base_addr
; /* scheduler sram base address */
1347 unsigned long status
;
1349 /* counts mgmt, ctl, and data packets */
1350 struct traffic_stats tx_stats
;
1351 struct traffic_stats rx_stats
;
1353 /* counts interrupts */
1354 struct isr_statistics isr_stats
;
1356 struct iwl_power_mgr power_data
;
1357 struct iwl_tt_mgmt thermal_throttle
;
1359 /* context information */
1360 u8 bssid
[ETH_ALEN
]; /* used only on 3945 but filled by core */
1362 /* station table variables */
1364 /* Note: if lock and sta_lock are needed, lock must be acquired first */
1365 spinlock_t sta_lock
;
1367 struct iwl_station_entry stations
[IWL_STATION_COUNT
];
1368 unsigned long ucode_key_table
;
1370 /* queue refcounts */
1371 #define IWL_MAX_HW_QUEUES 32
1372 unsigned long queue_stopped
[BITS_TO_LONGS(IWL_MAX_HW_QUEUES
)];
1374 atomic_t queue_stop_count
[4];
1376 /* Indication if ieee80211_ops->open has been called */
1379 u8 mac80211_registered
;
1381 /* eeprom -- this is in the card's little endian byte order */
1383 int nvm_device_type
;
1384 struct iwl_eeprom_calib_info
*calib_info
;
1386 enum nl80211_iftype iw_mode
;
1388 /* Last Rx'd beacon timestamp */
1392 #if defined(CONFIG_IWL3945) || defined(CONFIG_IWL3945_MODULE)
1395 dma_addr_t shared_phys
;
1397 struct delayed_work thermal_periodic
;
1398 struct delayed_work rfkill_poll
;
1400 struct iwl3945_notif_statistics statistics
;
1401 #ifdef CONFIG_IWLWIFI_DEBUGFS
1402 struct iwl3945_notif_statistics accum_statistics
;
1403 struct iwl3945_notif_statistics delta_statistics
;
1404 struct iwl3945_notif_statistics max_delta
;
1408 int last_rx_rssi
; /* From Rx packet statistics */
1410 /* Rx'd packet timing information */
1411 u32 last_beacon_time
;
1415 * each calibration channel group in the
1416 * EEPROM has a derived clip setting for
1419 const struct iwl3945_clip_group clip_groups
[5];
1423 #if defined(CONFIG_IWLAGN) || defined(CONFIG_IWLAGN_MODULE)
1428 dma_addr_t ict_tbl_dma
;
1429 dma_addr_t aligned_ict_tbl_dma
;
1434 * reporting the number of tids has AGG on. 0 means
1439 struct iwl_rx_phy_res last_phy_res
;
1440 bool last_phy_res_valid
;
1442 struct completion firmware_loading_complete
;
1444 u32 init_evtlog_ptr
, init_evtlog_size
, init_errlog_ptr
;
1445 u32 inst_evtlog_ptr
, inst_evtlog_size
, inst_errlog_ptr
;
1448 * chain noise reset and gain commands are the
1449 * two extra calibration commands follows the standard
1450 * phy calibration commands
1452 u8 phy_calib_chain_noise_reset_cmd
;
1453 u8 phy_calib_chain_noise_gain_cmd
;
1455 struct iwl_notif_statistics statistics
;
1456 struct iwl_bt_notif_statistics statistics_bt
;
1457 /* counts reply_tx error */
1458 struct reply_tx_error_statistics reply_tx_stats
;
1459 struct reply_agg_tx_error_statistics reply_agg_tx_stats
;
1460 #ifdef CONFIG_IWLWIFI_DEBUGFS
1461 struct iwl_notif_statistics accum_statistics
;
1462 struct iwl_notif_statistics delta_statistics
;
1463 struct iwl_notif_statistics max_delta
;
1464 struct iwl_bt_notif_statistics accum_statistics_bt
;
1465 struct iwl_bt_notif_statistics delta_statistics_bt
;
1466 struct iwl_bt_notif_statistics max_delta_bt
;
1474 u8 bt_traffic_load
, notif_bt_traffic_load
;
1475 bool bt_ch_announce
;
1477 bool bt_full_concurrent
;
1478 bool bt_ant_couple_ok
;
1479 __le32 kill_ack_mask
;
1480 __le32 kill_cts_mask
;
1484 u16 dynamic_frag_thresh
;
1485 u16 dynamic_agg_thresh
;
1486 u8 bt_ci_compliance
;
1487 struct work_struct bt_traffic_change_work
;
1489 struct iwl_hw_params hw_params
;
1493 struct workqueue_struct
*workqueue
;
1495 struct work_struct restart
;
1496 struct work_struct scan_completed
;
1497 struct work_struct rx_replenish
;
1498 struct work_struct abort_scan
;
1500 struct work_struct beacon_update
;
1501 struct iwl_rxon_context
*beacon_ctx
;
1502 struct sk_buff
*beacon_skb
;
1504 struct work_struct tt_work
;
1505 struct work_struct ct_enter
;
1506 struct work_struct ct_exit
;
1507 struct work_struct start_internal_scan
;
1508 struct work_struct tx_flush
;
1509 struct work_struct bt_full_concurrency
;
1510 struct work_struct bt_runtime_config
;
1512 struct tasklet_struct irq_tasklet
;
1514 struct delayed_work init_alive_start
;
1515 struct delayed_work alive_start
;
1516 struct delayed_work scan_check
;
1519 s8 tx_power_user_lmt
;
1520 s8 tx_power_device_lmt
;
1521 s8 tx_power_lmt_in_half_dbm
; /* max tx power in half-dBm format */
1525 #ifdef CONFIG_IWLWIFI_DEBUG
1526 /* debugging info */
1527 u32 debug_level
; /* per device debugging will override global
1528 iwl_debug_level if set */
1529 #endif /* CONFIG_IWLWIFI_DEBUG */
1530 #ifdef CONFIG_IWLWIFI_DEBUGFS
1536 struct dentry
*debugfs_dir
;
1537 u32 dbgfs_sram_offset
, dbgfs_sram_len
;
1539 #endif /* CONFIG_IWLWIFI_DEBUGFS */
1541 struct work_struct txpower_work
;
1542 u32 disable_sens_cal
;
1543 u32 disable_chain_noise_cal
;
1544 u32 disable_tx_power_cal
;
1545 struct work_struct run_time_calib_work
;
1546 struct timer_list statistics_periodic
;
1547 struct timer_list ucode_trace
;
1548 struct timer_list monitor_recover
;
1551 struct iwl_event_log event_log
;
1554 static inline void iwl_txq_ctx_activate(struct iwl_priv
*priv
, int txq_id
)
1556 set_bit(txq_id
, &priv
->txq_ctx_active_msk
);
1559 static inline void iwl_txq_ctx_deactivate(struct iwl_priv
*priv
, int txq_id
)
1561 clear_bit(txq_id
, &priv
->txq_ctx_active_msk
);
1564 #ifdef CONFIG_IWLWIFI_DEBUG
1566 * iwl_get_debug_level: Return active debug level for device
1568 * Using sysfs it is possible to set per device debug level. This debug
1569 * level will be used if set, otherwise the global debug level which can be
1570 * set via module parameter is used.
1572 static inline u32
iwl_get_debug_level(struct iwl_priv
*priv
)
1574 if (priv
->debug_level
)
1575 return priv
->debug_level
;
1577 return iwl_debug_level
;
1580 static inline u32
iwl_get_debug_level(struct iwl_priv
*priv
)
1582 return iwl_debug_level
;
1587 static inline struct ieee80211_hdr
*iwl_tx_queue_get_hdr(struct iwl_priv
*priv
,
1588 int txq_id
, int idx
)
1590 if (priv
->txq
[txq_id
].txb
[idx
].skb
)
1591 return (struct ieee80211_hdr
*)priv
->txq
[txq_id
].
1596 static inline struct iwl_rxon_context
*
1597 iwl_rxon_ctx_from_vif(struct ieee80211_vif
*vif
)
1599 struct iwl_vif_priv
*vif_priv
= (void *)vif
->drv_priv
;
1601 return vif_priv
->ctx
;
1604 #define for_each_context(priv, ctx) \
1605 for (ctx = &priv->contexts[IWL_RXON_CTX_BSS]; \
1606 ctx < &priv->contexts[NUM_IWL_RXON_CTX]; ctx++) \
1607 if (priv->valid_contexts & BIT(ctx->ctxid))
1609 static inline int iwl_is_associated(struct iwl_priv
*priv
,
1610 enum iwl_rxon_context_id ctxid
)
1612 return (priv
->contexts
[ctxid
].active
.filter_flags
&
1613 RXON_FILTER_ASSOC_MSK
) ? 1 : 0;
1616 static inline int iwl_is_any_associated(struct iwl_priv
*priv
)
1618 return iwl_is_associated(priv
, IWL_RXON_CTX_BSS
);
1621 static inline int iwl_is_associated_ctx(struct iwl_rxon_context
*ctx
)
1623 return (ctx
->active
.filter_flags
& RXON_FILTER_ASSOC_MSK
) ? 1 : 0;
1626 static inline int is_channel_valid(const struct iwl_channel_info
*ch_info
)
1628 if (ch_info
== NULL
)
1630 return (ch_info
->flags
& EEPROM_CHANNEL_VALID
) ? 1 : 0;
1633 static inline int is_channel_radar(const struct iwl_channel_info
*ch_info
)
1635 return (ch_info
->flags
& EEPROM_CHANNEL_RADAR
) ? 1 : 0;
1638 static inline u8
is_channel_a_band(const struct iwl_channel_info
*ch_info
)
1640 return ch_info
->band
== IEEE80211_BAND_5GHZ
;
1643 static inline u8
is_channel_bg_band(const struct iwl_channel_info
*ch_info
)
1645 return ch_info
->band
== IEEE80211_BAND_2GHZ
;
1648 static inline int is_channel_passive(const struct iwl_channel_info
*ch
)
1650 return (!(ch
->flags
& EEPROM_CHANNEL_ACTIVE
)) ? 1 : 0;
1653 static inline int is_channel_ibss(const struct iwl_channel_info
*ch
)
1655 return ((ch
->flags
& EEPROM_CHANNEL_IBSS
)) ? 1 : 0;
1658 static inline void __iwl_free_pages(struct iwl_priv
*priv
, struct page
*page
)
1660 __free_pages(page
, priv
->hw_params
.rx_page_order
);
1661 priv
->alloc_rxb_page
--;
1664 static inline void iwl_free_pages(struct iwl_priv
*priv
, unsigned long page
)
1666 free_pages(page
, priv
->hw_params
.rx_page_order
);
1667 priv
->alloc_rxb_page
--;
1669 #endif /* __iwl_dev_h__ */