1 /******************************************************************************
3 * Copyright(c) 2003 - 2011 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.
34 #include <linux/interrupt.h>
35 #include <linux/pci.h> /* for struct pci_device_id */
36 #include <linux/kernel.h>
37 #include <linux/wait.h>
38 #include <linux/leds.h>
39 #include <net/ieee80211_radiotap.h>
41 #include "iwl-eeprom.h"
45 #include "iwl-debug.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 200U
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
);
116 DEFINE_DMA_UNMAP_ADDR(mapping
);
117 DEFINE_DMA_UNMAP_LEN(len
);
121 * Generic queue structure
123 * Contains common data for Rx and Tx queues.
125 * Note the difference between n_bd and n_window: the hardware
126 * always assumes 256 descriptors, so n_bd is always 256 (unless
127 * there might be HW changes in the future). For the normal TX
128 * queues, n_window, which is the size of the software queue data
129 * is also 256; however, for the command queue, n_window is only
130 * 32 since we don't need so many commands pending. Since the HW
131 * still uses 256 BDs for DMA though, n_bd stays 256. As a result,
132 * the software buffers (in the variables @meta, @txb in struct
133 * iwl_tx_queue) only have 32 entries, while the HW buffers (@tfds
134 * in the same struct) have 256.
135 * This means that we end up with the following:
136 * HW entries: | 0 | ... | N * 32 | ... | N * 32 + 31 | ... | 255 |
137 * SW entries: | 0 | ... | 31 |
138 * where N is a number between 0 and 7. This means that the SW
139 * data is a window overlayed over the HW queue.
142 int n_bd
; /* number of BDs in this queue */
143 int write_ptr
; /* 1-st empty entry (index) host_w*/
144 int read_ptr
; /* last used entry (index) host_r*/
145 /* use for monitoring and recovering the stuck queue */
146 dma_addr_t dma_addr
; /* physical addr for BD's */
147 int n_window
; /* safe queue window */
149 int low_mark
; /* low watermark, resume queue if free
150 * space more than this */
151 int high_mark
; /* high watermark, stop queue if free
152 * space less than this */
155 /* One for each TFD */
158 struct iwl_rxon_context
*ctx
;
162 * struct iwl_tx_queue - Tx Queue for DMA
163 * @q: generic Rx/Tx queue descriptor
164 * @bd: base of circular buffer of TFDs
165 * @cmd: array of command/TX buffer pointers
166 * @meta: array of meta data for each command/tx buffer
167 * @dma_addr_cmd: physical address of cmd/tx buffer array
168 * @txb: array of per-TFD driver data
169 * @time_stamp: time (in jiffies) of last read_ptr change
170 * @need_update: indicates need to update read/write index
171 * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
173 * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
174 * descriptors) and required locking structures.
176 #define TFD_TX_CMD_SLOTS 256
177 #define TFD_CMD_SLOTS 32
179 struct iwl_tx_queue
{
181 struct iwl_tfd
*tfds
;
182 struct iwl_device_cmd
**cmd
;
183 struct iwl_cmd_meta
*meta
;
184 struct iwl_tx_info
*txb
;
185 unsigned long time_stamp
;
192 #define IWL_NUM_SCAN_RATES (2)
195 * One for each channel, holds all channel setup data
196 * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
199 struct iwl_channel_info
{
200 struct iwl_eeprom_channel eeprom
; /* EEPROM regulatory limit */
201 struct iwl_eeprom_channel ht40_eeprom
; /* EEPROM regulatory limit for
204 u8 channel
; /* channel number */
205 u8 flags
; /* flags copied from EEPROM */
206 s8 max_power_avg
; /* (dBm) regul. eeprom, normal Tx, any rate */
207 s8 curr_txpow
; /* (dBm) regulatory/spectrum/user (not h/w) limit */
208 s8 min_power
; /* always 0 */
209 s8 scan_power
; /* (dBm) regul. eeprom, direct scans, any rate */
211 u8 group_index
; /* 0-4, maps channel to group1/2/3/4/5 */
212 u8 band_index
; /* 0-4, maps channel to band1/2/3/4/5 */
213 enum ieee80211_band band
;
215 /* HT40 channel info */
216 s8 ht40_max_power_avg
; /* (dBm) regul. eeprom, normal Tx, any rate */
217 u8 ht40_flags
; /* flags copied from EEPROM */
218 u8 ht40_extension_channel
; /* HT_IE_EXT_CHANNEL_* */
221 #define IWL_TX_FIFO_BK 0 /* shared */
222 #define IWL_TX_FIFO_BE 1
223 #define IWL_TX_FIFO_VI 2 /* shared */
224 #define IWL_TX_FIFO_VO 3
225 #define IWL_TX_FIFO_BK_IPAN IWL_TX_FIFO_BK
226 #define IWL_TX_FIFO_BE_IPAN 4
227 #define IWL_TX_FIFO_VI_IPAN IWL_TX_FIFO_VI
228 #define IWL_TX_FIFO_VO_IPAN 5
229 #define IWL_TX_FIFO_UNUSED -1
231 /* Minimum number of queues. MAX_NUM is defined in hw specific files.
232 * Set the minimum to accommodate the 4 standard TX queues, 1 command
233 * queue, 2 (unused) HCCA queues, and 4 HT queues (one for each AC) */
234 #define IWL_MIN_NUM_QUEUES 10
237 * Command queue depends on iPAN support.
239 #define IWL_DEFAULT_CMD_QUEUE_NUM 4
240 #define IWL_IPAN_CMD_QUEUE_NUM 9
243 * This queue number is required for proper operation
244 * because the ucode will stop/start the scheduler as
247 #define IWL_IPAN_MCAST_QUEUE 8
249 #define IEEE80211_DATA_LEN 2304
250 #define IEEE80211_4ADDR_LEN 30
251 #define IEEE80211_HLEN (IEEE80211_4ADDR_LEN)
252 #define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
255 #define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
256 #define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
257 #define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
263 CMD_ASYNC
= (1 << 1),
264 CMD_WANT_SKB
= (1 << 2),
265 CMD_MAPPED
= (1 << 3),
268 #define DEF_CMD_PAYLOAD_SIZE 320
271 * struct iwl_device_cmd
273 * For allocation of the command and tx queues, this establishes the overall
274 * size of the largest command we send to uCode, except for commands that
275 * aren't fully copied and use other TFD space.
277 struct iwl_device_cmd
{
278 struct iwl_cmd_header hdr
; /* uCode API */
284 struct iwl_tx_cmd tx
;
285 struct iwl6000_channel_switch_cmd chswitch
;
286 u8 payload
[DEF_CMD_PAYLOAD_SIZE
];
290 #define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_device_cmd))
292 #define IWL_MAX_CMD_TFDS 2
294 enum iwl_hcmd_dataflag
{
295 IWL_HCMD_DFL_NOCOPY
= BIT(0),
298 struct iwl_host_cmd
{
299 const void *data
[IWL_MAX_CMD_TFDS
];
300 unsigned long reply_page
;
301 void (*callback
)(struct iwl_priv
*priv
,
302 struct iwl_device_cmd
*cmd
,
303 struct iwl_rx_packet
*pkt
);
305 u16 len
[IWL_MAX_CMD_TFDS
];
306 u8 dataflags
[IWL_MAX_CMD_TFDS
];
310 #define SUP_RATE_11A_MAX_NUM_CHANNELS 8
311 #define SUP_RATE_11B_MAX_NUM_CHANNELS 4
312 #define SUP_RATE_11G_MAX_NUM_CHANNELS 12
315 * struct iwl_rx_queue - Rx queue
316 * @bd: driver's pointer to buffer of receive buffer descriptors (rbd)
317 * @bd_dma: bus address of buffer of receive buffer descriptors (rbd)
318 * @read: Shared index to newest available Rx buffer
319 * @write: Shared index to oldest written Rx packet
320 * @free_count: Number of pre-allocated buffers in rx_free
321 * @rx_free: list of free SKBs for use
322 * @rx_used: List of Rx buffers with no SKB
323 * @need_update: flag to indicate we need to update read/write index
324 * @rb_stts: driver's pointer to receive buffer status
325 * @rb_stts_dma: bus address of receive buffer status
327 * NOTE: rx_free and rx_used are used as a FIFO for iwl_rx_mem_buffers
329 struct iwl_rx_queue
{
332 struct iwl_rx_mem_buffer pool
[RX_QUEUE_SIZE
+ RX_FREE_BUFFERS
];
333 struct iwl_rx_mem_buffer
*queue
[RX_QUEUE_SIZE
];
338 struct list_head rx_free
;
339 struct list_head rx_used
;
341 struct iwl_rb_status
*rb_stts
;
342 dma_addr_t rb_stts_dma
;
346 #define IWL_SUPPORTED_RATES_IE_LEN 8
348 #define MAX_TID_COUNT 9
350 #define IWL_INVALID_RATE 0xFF
351 #define IWL_INVALID_VALUE -1
354 * struct iwl_ht_agg -- aggregation status while waiting for block-ack
355 * @txq_id: Tx queue used for Tx attempt
356 * @frame_count: # frames attempted by Tx command
357 * @wait_for_ba: Expect block-ack before next Tx reply
358 * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window
359 * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window
360 * @bitmap1: High order, one bit for each frame pending ACK in Tx window
361 * @rate_n_flags: Rate at which Tx was attempted
363 * If REPLY_TX indicates that aggregation was attempted, driver must wait
364 * for block ack (REPLY_COMPRESSED_BA). This struct stores tx reply info
365 * until block ack arrives.
374 #define IWL_AGG_OFF 0
376 #define IWL_EMPTYING_HW_QUEUE_ADDBA 2
377 #define IWL_EMPTYING_HW_QUEUE_DELBA 3
383 struct iwl_tid_data
{
384 u16 seq_number
; /* agn only */
386 struct iwl_ht_agg agg
;
396 union iwl_ht_rate_supp
{
404 #define CFG_HT_RX_AMPDU_FACTOR_8K (0x0)
405 #define CFG_HT_RX_AMPDU_FACTOR_16K (0x1)
406 #define CFG_HT_RX_AMPDU_FACTOR_32K (0x2)
407 #define CFG_HT_RX_AMPDU_FACTOR_64K (0x3)
408 #define CFG_HT_RX_AMPDU_FACTOR_DEF CFG_HT_RX_AMPDU_FACTOR_64K
409 #define CFG_HT_RX_AMPDU_FACTOR_MAX CFG_HT_RX_AMPDU_FACTOR_64K
410 #define CFG_HT_RX_AMPDU_FACTOR_MIN CFG_HT_RX_AMPDU_FACTOR_8K
413 * Maximal MPDU density for TX aggregation
419 #define CFG_HT_MPDU_DENSITY_2USEC (0x4)
420 #define CFG_HT_MPDU_DENSITY_4USEC (0x5)
421 #define CFG_HT_MPDU_DENSITY_8USEC (0x6)
422 #define CFG_HT_MPDU_DENSITY_16USEC (0x7)
423 #define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_4USEC
424 #define CFG_HT_MPDU_DENSITY_MAX CFG_HT_MPDU_DENSITY_16USEC
425 #define CFG_HT_MPDU_DENSITY_MIN (0x1)
427 struct iwl_ht_config
{
428 bool single_chain_sufficient
;
429 enum ieee80211_smps_mode smps
; /* current smps mode */
433 struct iwl_qos_info
{
435 struct iwl_qosparam_cmd def_qos_parm
;
439 * Structure should be accessed with sta_lock held. When station addition
440 * is in progress (IWL_STA_UCODE_INPROGRESS) it is possible to access only
441 * the commands (iwl_addsta_cmd and iwl_link_quality_cmd) without sta_lock
444 struct iwl_station_entry
{
445 struct iwl_addsta_cmd sta
;
446 struct iwl_tid_data tid
[MAX_TID_COUNT
];
448 struct iwl_hw_key keyinfo
;
449 struct iwl_link_quality_cmd
*lq
;
452 struct iwl_station_priv_common
{
453 struct iwl_rxon_context
*ctx
;
458 * iwl_station_priv: Driver's private station information
460 * When mac80211 creates a station it reserves some space (hw->sta_data_size)
461 * in the structure for use by driver. This structure is places in that
464 struct iwl_station_priv
{
465 struct iwl_station_priv_common common
;
466 struct iwl_lq_sta lq_sta
;
467 atomic_t pending_frames
;
474 * struct iwl_vif_priv - driver's private per-interface information
476 * When mac80211 allocates a virtual interface, it can allocate
477 * space for us to put data into.
479 struct iwl_vif_priv
{
480 struct iwl_rxon_context
*ctx
;
481 u8 ibss_bssid_sta_id
;
484 /* one for each uCode image (inst/data, boot/init/runtime) */
486 void *v_addr
; /* access by driver */
487 dma_addr_t p_addr
; /* access by card's busmaster DMA */
492 struct fw_desc code
, data
;
495 /* v1/v2 uCode file layout */
496 struct iwl_ucode_header
{
497 __le32 ver
; /* major/minor/API/serial */
500 __le32 inst_size
; /* bytes of runtime code */
501 __le32 data_size
; /* bytes of runtime data */
502 __le32 init_size
; /* bytes of init code */
503 __le32 init_data_size
; /* bytes of init data */
504 __le32 boot_size
; /* bytes of bootstrap code */
505 u8 data
[0]; /* in same order as sizes */
508 __le32 build
; /* build number */
509 __le32 inst_size
; /* bytes of runtime code */
510 __le32 data_size
; /* bytes of runtime data */
511 __le32 init_size
; /* bytes of init code */
512 __le32 init_data_size
; /* bytes of init data */
513 __le32 boot_size
; /* bytes of bootstrap code */
514 u8 data
[0]; /* in same order as sizes */
520 * new TLV uCode file layout
522 * The new TLV file format contains TLVs, that each specify
523 * some piece of data. To facilitate "groups", for example
524 * different instruction image with different capabilities,
525 * bundled with the same init image, an alternative mechanism
527 * When the alternative field is 0, that means that the item
528 * is always valid. When it is non-zero, then it is only
529 * valid in conjunction with items of the same alternative,
530 * in which case the driver (user) selects one alternative
534 enum iwl_ucode_tlv_type
{
535 IWL_UCODE_TLV_INVALID
= 0, /* unused */
536 IWL_UCODE_TLV_INST
= 1,
537 IWL_UCODE_TLV_DATA
= 2,
538 IWL_UCODE_TLV_INIT
= 3,
539 IWL_UCODE_TLV_INIT_DATA
= 4,
540 IWL_UCODE_TLV_BOOT
= 5,
541 IWL_UCODE_TLV_PROBE_MAX_LEN
= 6, /* a u32 value */
542 IWL_UCODE_TLV_PAN
= 7,
543 IWL_UCODE_TLV_RUNT_EVTLOG_PTR
= 8,
544 IWL_UCODE_TLV_RUNT_EVTLOG_SIZE
= 9,
545 IWL_UCODE_TLV_RUNT_ERRLOG_PTR
= 10,
546 IWL_UCODE_TLV_INIT_EVTLOG_PTR
= 11,
547 IWL_UCODE_TLV_INIT_EVTLOG_SIZE
= 12,
548 IWL_UCODE_TLV_INIT_ERRLOG_PTR
= 13,
549 IWL_UCODE_TLV_ENHANCE_SENS_TBL
= 14,
550 IWL_UCODE_TLV_PHY_CALIBRATION_SIZE
= 15,
551 /* 16 and 17 reserved for future use */
552 IWL_UCODE_TLV_FLAGS
= 18,
556 * enum iwl_ucode_tlv_flag - ucode API flags
557 * @IWL_UCODE_TLV_FLAGS_PAN: This is PAN capable microcode; this previously
558 * was a separate TLV but moved here to save space.
559 * @IWL_UCODE_TLV_FLAGS_NEWSCAN: new uCode scan behaviour on hidden SSID,
560 * treats good CRC threshold as a boolean
561 * @IWL_UCODE_TLV_FLAGS_MFP: This uCode image supports MFP (802.11w).
563 enum iwl_ucode_tlv_flag
{
564 IWL_UCODE_TLV_FLAGS_PAN
= BIT(0),
565 IWL_UCODE_TLV_FLAGS_NEWSCAN
= BIT(1),
566 IWL_UCODE_TLV_FLAGS_MFP
= BIT(2),
569 struct iwl_ucode_tlv
{
570 __le16 type
; /* see above */
571 __le16 alternative
; /* see comment */
572 __le32 length
; /* not including type/length fields */
576 #define IWL_TLV_UCODE_MAGIC 0x0a4c5749
578 struct iwl_tlv_ucode_header
{
580 * The TLV style ucode header is distinguished from
581 * the v1/v2 style header by first four bytes being
582 * zero, as such is an invalid combination of
583 * major/minor/API/serial versions.
587 u8 human_readable
[64];
588 __le32 ver
; /* major/minor/API/serial */
590 __le64 alternatives
; /* bitmask of valid alternatives */
592 * The data contained herein has a TLV layout,
593 * see above for the TLV header and types.
594 * Note that each TLV is padded to a length
595 * that is a multiple of 4 for alignment.
600 struct iwl_sensitivity_ranges
{
607 u16 auto_corr_min_ofdm
;
608 u16 auto_corr_min_ofdm_mrc
;
609 u16 auto_corr_min_ofdm_x1
;
610 u16 auto_corr_min_ofdm_mrc_x1
;
612 u16 auto_corr_max_ofdm
;
613 u16 auto_corr_max_ofdm_mrc
;
614 u16 auto_corr_max_ofdm_x1
;
615 u16 auto_corr_max_ofdm_mrc_x1
;
617 u16 auto_corr_max_cck
;
618 u16 auto_corr_max_cck_mrc
;
619 u16 auto_corr_min_cck
;
620 u16 auto_corr_min_cck_mrc
;
622 u16 barker_corr_th_min
;
623 u16 barker_corr_th_min_mrc
;
628 #define KELVIN_TO_CELSIUS(x) ((x)-273)
629 #define CELSIUS_TO_KELVIN(x) ((x)+273)
633 * struct iwl_hw_params
634 * @max_txq_num: Max # Tx queues supported
635 * @dma_chnl_num: Number of Tx DMA/FIFO channels
636 * @scd_bc_tbls_size: size of scheduler byte count tables
637 * @tfd_size: TFD size
638 * @tx/rx_chains_num: Number of TX/RX chains
639 * @valid_tx/rx_ant: usable antennas
640 * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
641 * @max_rxq_log: Log-base-2 of max_rxq_size
642 * @rx_page_order: Rx buffer page order
643 * @rx_wrt_ptr_reg: FH{39}_RSCSR_CHNL0_WPTR
645 * @ht40_channel: is 40MHz width possible in band 2.4
646 * BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ)
647 * @sw_crypto: 0 for hw, 1 for sw
648 * @max_xxx_size: for ucode uses
649 * @ct_kill_threshold: temperature threshold
650 * @beacon_time_tsf_bits: number of valid tsf bits for beacon time
651 * @calib_init_cfg: setup initial calibrations for the hw
652 * @calib_rt_cfg: setup runtime calibrations for the hw
653 * @struct iwl_sensitivity_ranges: range of sensitivity values
655 struct iwl_hw_params
{
658 u16 scd_bc_tbls_size
;
670 u8 max_beacon_itrvl
; /* in 1024 ms */
673 u32 ct_kill_threshold
; /* value in hw-dependent units */
674 u32 ct_kill_exit_threshold
; /* value in hw-dependent units */
675 /* for 1000, 6000 series and up */
676 u16 beacon_time_tsf_bits
;
679 const struct iwl_sensitivity_ranges
*sens
;
683 /******************************************************************************
685 * Functions implemented in core module which are forward declared here
686 * for use by iwl-[4-5].c
688 * NOTE: The implementation of these functions are not hardware specific
689 * which is why they are in the core module files.
691 * Naming convention --
692 * iwl_ <-- Is part of iwlwifi
693 * iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
695 ****************************************************************************/
696 extern void iwl_update_chain_flags(struct iwl_priv
*priv
);
697 extern const u8 iwl_bcast_addr
[ETH_ALEN
];
698 extern int iwl_rxq_stop(struct iwl_priv
*priv
);
699 extern void iwl_txq_ctx_stop(struct iwl_priv
*priv
);
700 extern int iwl_queue_space(const struct iwl_queue
*q
);
701 static inline int iwl_queue_used(const struct iwl_queue
*q
, int i
)
703 return q
->write_ptr
>= q
->read_ptr
?
704 (i
>= q
->read_ptr
&& i
< q
->write_ptr
) :
705 !(i
< q
->read_ptr
&& i
>= q
->write_ptr
);
709 static inline u8
get_cmd_index(struct iwl_queue
*q
, u32 index
)
711 return index
& (q
->n_window
- 1);
721 #define IWL_OPERATION_MODE_AUTO 0
722 #define IWL_OPERATION_MODE_HT_ONLY 1
723 #define IWL_OPERATION_MODE_MIXED 2
724 #define IWL_OPERATION_MODE_20MHZ 3
726 #define IWL_TX_CRC_SIZE 4
727 #define IWL_TX_DELIMITER_SIZE 4
729 #define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
731 /* Sensitivity and chain noise calibration */
732 #define INITIALIZATION_VALUE 0xFFFF
733 #define IWL_CAL_NUM_BEACONS 16
734 #define MAXIMUM_ALLOWED_PATHLOSS 15
736 #define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
738 #define MAX_FA_OFDM 50
739 #define MIN_FA_OFDM 5
740 #define MAX_FA_CCK 50
743 #define AUTO_CORR_STEP_OFDM 1
745 #define AUTO_CORR_STEP_CCK 3
746 #define AUTO_CORR_MAX_TH_CCK 160
749 #define NRG_STEP_CCK 2
751 #define MAX_NUMBER_CCK_NO_FA 100
753 #define AUTO_CORR_CCK_MIN_VAL_DEF (125)
758 #define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
759 #define ALL_BAND_FILTER 0xFF00
760 #define IN_BAND_FILTER 0xFF
761 #define MIN_AVERAGE_NOISE_MAX_VALUE 0xFFFFFFFF
763 #define NRG_NUM_PREV_STAT_L 20
764 #define NUM_RX_CHAINS 3
766 enum iwlagn_false_alarm_state
{
769 IWL_FA_GOOD_RANGE
= 2,
772 enum iwlagn_chain_noise_state
{
773 IWL_CHAIN_NOISE_ALIVE
= 0, /* must be 0 */
774 IWL_CHAIN_NOISE_ACCUMULATE
,
775 IWL_CHAIN_NOISE_CALIBRATED
,
776 IWL_CHAIN_NOISE_DONE
,
782 * defines the order in which results of initial calibrations
783 * should be sent to the runtime uCode
790 IWL_CALIB_TX_IQ_PERD
,
792 IWL_CALIB_TEMP_OFFSET
,
796 /* Opaque calibration results */
797 struct iwl_calib_result
{
802 /* Sensitivity calib data */
803 struct iwl_sensitivity_data
{
805 u32 auto_corr_ofdm_mrc
;
806 u32 auto_corr_ofdm_x1
;
807 u32 auto_corr_ofdm_mrc_x1
;
809 u32 auto_corr_cck_mrc
;
811 u32 last_bad_plcp_cnt_ofdm
;
812 u32 last_fa_cnt_ofdm
;
813 u32 last_bad_plcp_cnt_cck
;
819 u8 nrg_silence_rssi
[NRG_NUM_PREV_STAT_L
];
824 s32 nrg_auto_corr_silence_diff
;
825 u32 num_in_cck_no_fa
;
828 u16 barker_corr_th_min
;
829 u16 barker_corr_th_min_mrc
;
833 /* Chain noise (differential Rx gain) calib data */
834 struct iwl_chain_noise_data
{
843 u8 disconn_array
[NUM_RX_CHAINS
];
844 u8 delta_gain_code
[NUM_RX_CHAINS
];
849 #define EEPROM_SEM_TIMEOUT 10 /* milliseconds */
850 #define EEPROM_SEM_RETRY_LIMIT 1000 /* number of attempts (not time) */
852 #define IWL_TRAFFIC_ENTRIES (256)
853 #define IWL_TRAFFIC_ENTRY_SIZE (64)
856 MEASUREMENT_READY
= (1 << 0),
857 MEASUREMENT_ACTIVE
= (1 << 1),
861 NVM_DEVICE_TYPE_EEPROM
= 0,
866 * Two types of OTP memory access modes
867 * IWL_OTP_ACCESS_ABSOLUTE - absolute address mode,
868 * based on physical memory addressing
869 * IWL_OTP_ACCESS_RELATIVE - relative address mode,
870 * based on logical memory addressing
872 enum iwl_access_mode
{
873 IWL_OTP_ACCESS_ABSOLUTE
,
874 IWL_OTP_ACCESS_RELATIVE
,
878 * enum iwl_pa_type - Power Amplifier type
879 * @IWL_PA_SYSTEM: based on uCode configuration
880 * @IWL_PA_INTERNAL: use Internal only
887 /* interrupt statistics */
888 struct isr_statistics
{
898 u32 rx_handlers
[REPLY_MAX
];
903 /* reply_tx_statistics (for _agn devices) */
904 struct reply_tx_error_statistics
{
910 u32 int_crossed_retry
;
926 u32 sta_color_mismatch
;
930 /* reply_agg_tx_statistics (for _agn devices) */
931 struct reply_agg_tx_error_statistics
{
938 u32 last_sent_bt_kill
;
947 /* management statistics */
948 enum iwl_mgmt_stats
{
949 MANAGEMENT_ASSOC_REQ
= 0,
950 MANAGEMENT_ASSOC_RESP
,
951 MANAGEMENT_REASSOC_REQ
,
952 MANAGEMENT_REASSOC_RESP
,
953 MANAGEMENT_PROBE_REQ
,
954 MANAGEMENT_PROBE_RESP
,
963 /* control statistics */
964 enum iwl_ctrl_stats
{
965 CONTROL_BACK_REQ
= 0,
976 struct traffic_stats
{
977 #ifdef CONFIG_IWLWIFI_DEBUGFS
978 u32 mgmt
[MANAGEMENT_MAX
];
979 u32 ctrl
[CONTROL_MAX
];
986 * iwl_switch_rxon: "channel switch" structure
988 * @ switch_in_progress: channel switch in progress
989 * @ channel: new channel
991 struct iwl_switch_rxon
{
992 bool switch_in_progress
;
997 * schedule the timer to wake up every UCODE_TRACE_PERIOD milliseconds
998 * to perform continuous uCode event logging operation if enabled
1000 #define UCODE_TRACE_PERIOD (100)
1003 * iwl_event_log: current uCode event log position
1005 * @ucode_trace: enable/disable ucode continuous trace timer
1006 * @num_wraps: how many times the event buffer wraps
1007 * @next_entry: the entry just before the next one that uCode would fill
1008 * @non_wraps_count: counter for no wrap detected when dump ucode events
1009 * @wraps_once_count: counter for wrap once detected when dump ucode events
1010 * @wraps_more_count: counter for wrap more than once detected
1011 * when dump ucode events
1013 struct iwl_event_log
{
1017 int non_wraps_count
;
1018 int wraps_once_count
;
1019 int wraps_more_count
;
1023 * host interrupt timeout value
1024 * used with setting interrupt coalescing timer
1025 * the CSR_INT_COALESCING is an 8 bit register in 32-usec unit
1027 * default interrupt coalescing timer is 64 x 32 = 2048 usecs
1028 * default interrupt coalescing calibration timer is 16 x 32 = 512 usecs
1030 #define IWL_HOST_INT_TIMEOUT_MAX (0xFF)
1031 #define IWL_HOST_INT_TIMEOUT_DEF (0x40)
1032 #define IWL_HOST_INT_TIMEOUT_MIN (0x0)
1033 #define IWL_HOST_INT_CALIB_TIMEOUT_MAX (0xFF)
1034 #define IWL_HOST_INT_CALIB_TIMEOUT_DEF (0x10)
1035 #define IWL_HOST_INT_CALIB_TIMEOUT_MIN (0x0)
1038 * This is the threshold value of plcp error rate per 100mSecs. It is
1039 * used to set and check for the validity of plcp_delta.
1041 #define IWL_MAX_PLCP_ERR_THRESHOLD_MIN (1)
1042 #define IWL_MAX_PLCP_ERR_THRESHOLD_DEF (50)
1043 #define IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF (100)
1044 #define IWL_MAX_PLCP_ERR_EXT_LONG_THRESHOLD_DEF (200)
1045 #define IWL_MAX_PLCP_ERR_THRESHOLD_MAX (255)
1046 #define IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE (0)
1048 #define IWL_DELAY_NEXT_FORCE_RF_RESET (HZ*3)
1049 #define IWL_DELAY_NEXT_FORCE_FW_RELOAD (HZ*5)
1051 /* TX queue watchdog timeouts in mSecs */
1052 #define IWL_DEF_WD_TIMEOUT (2000)
1053 #define IWL_LONG_WD_TIMEOUT (10000)
1054 #define IWL_MAX_WD_TIMEOUT (120000)
1056 /* BT Antenna Coupling Threshold (dB) */
1057 #define IWL_BT_ANTENNA_COUPLING_THRESHOLD (35)
1059 /* Firmware reload counter and Timestamp */
1060 #define IWL_MIN_RELOAD_DURATION 1000 /* 1000 ms */
1061 #define IWL_MAX_CONTINUE_RELOAD_CNT 4
1067 IWL_MAX_FORCE_RESET
,
1070 struct iwl_force_reset
{
1071 int reset_request_count
;
1072 int reset_success_count
;
1073 int reset_reject_count
;
1074 unsigned long reset_duration
;
1075 unsigned long last_force_reset_jiffies
;
1078 /* extend beacon time format bit shifting */
1081 * bits 31:22 - extended
1082 * bits 21:0 - interval
1084 #define IWLAGN_EXT_BEACON_TIME_POS 22
1087 * struct iwl_notification_wait - notification wait entry
1088 * @list: list head for global list
1089 * @fn: function called with the notification
1092 * This structure is not used directly, to wait for a
1093 * notification declare it on the stack, and call
1094 * iwlagn_init_notification_wait() with appropriate
1095 * parameters. Then do whatever will cause the ucode
1096 * to notify the driver, and to wait for that then
1097 * call iwlagn_wait_notification().
1099 * Each notification is one-shot. If at some point we
1100 * need to support multi-shot notifications (which
1101 * can't be allocated on the stack) we need to modify
1102 * the code for them.
1104 struct iwl_notification_wait
{
1105 struct list_head list
;
1107 void (*fn
)(struct iwl_priv
*priv
, struct iwl_rx_packet
*pkt
,
1112 bool triggered
, aborted
;
1115 enum iwl_rxon_context_id
{
1122 struct iwl_rxon_context
{
1123 struct ieee80211_vif
*vif
;
1125 const u8
*ac_to_fifo
;
1126 const u8
*ac_to_queue
;
1130 * We could use the vif to indicate active, but we
1131 * also need it to be active during disabling when
1132 * we already removed the vif for type setting.
1134 bool always_active
, is_active
;
1136 bool ht_need_multiple_chains
;
1138 enum iwl_rxon_context_id ctxid
;
1140 u32 interface_modes
, exclusive_interface_modes
;
1141 u8 unused_devtype
, ap_devtype
, ibss_devtype
, station_devtype
;
1144 * We declare this const so it can only be
1145 * changed via explicit cast within the
1146 * routines that actually update the physical
1149 const struct iwl_rxon_cmd active
;
1150 struct iwl_rxon_cmd staging
;
1152 struct iwl_rxon_time_cmd timing
;
1154 struct iwl_qos_info qos_data
;
1156 u8 bcast_sta_id
, ap_sta_id
;
1158 u8 rxon_cmd
, rxon_assoc_cmd
, rxon_timing_cmd
;
1162 struct iwl_wep_key wep_keys
[WEP_KEYS_MAX
];
1163 u8 key_mapping_keys
;
1165 __le32 station_flags
;
1168 bool non_gf_sta_present
;
1170 bool enabled
, is_40mhz
;
1171 u8 extension_chan_offset
;
1174 bool last_tx_rejected
;
1177 enum iwl_scan_type
{
1179 IWL_SCAN_RADIO_RESET
,
1183 #ifdef CONFIG_IWLWIFI_DEVICE_SVTOOL
1184 struct iwl_testmode_trace
{
1187 dma_addr_t dma_addr
;
1193 /* ieee device used by generic ieee processing code */
1194 struct ieee80211_hw
*hw
;
1195 struct ieee80211_channel
*ieee_channels
;
1196 struct ieee80211_rate
*ieee_rates
;
1197 struct iwl_cfg
*cfg
;
1199 enum ieee80211_band band
;
1201 void (*pre_rx_handler
)(struct iwl_priv
*priv
,
1202 struct iwl_rx_mem_buffer
*rxb
);
1203 void (*rx_handlers
[REPLY_MAX
])(struct iwl_priv
*priv
,
1204 struct iwl_rx_mem_buffer
*rxb
);
1206 struct ieee80211_supported_band bands
[IEEE80211_NUM_BANDS
];
1208 /* spectrum measurement report caching */
1209 struct iwl_spectrum_notification measure_report
;
1210 u8 measurement_status
;
1212 /* ucode beacon time */
1213 u32 ucode_beacon_time
;
1214 int missed_beacon_threshold
;
1216 /* track IBSS manager (last beacon) status */
1219 /* jiffies when last recovery from statistics was performed */
1220 unsigned long rx_statistics_jiffies
;
1223 struct iwl_force_reset force_reset
[IWL_MAX_FORCE_RESET
];
1225 /* firmware reload counter and timestamp */
1226 unsigned long reload_jiffies
;
1229 /* we allocate array of iwl_channel_info for NIC's valid channels.
1230 * Access via channel # using indirect index array */
1231 struct iwl_channel_info
*channel_info
; /* channel info array */
1232 u8 channel_count
; /* # of channels */
1234 /* thermal calibration */
1235 s32 temperature
; /* degrees Kelvin */
1236 s32 last_temperature
;
1238 /* init calibration results */
1239 struct iwl_calib_result calib_results
[IWL_CALIB_MAX
];
1241 /* Scan related variables */
1242 unsigned long scan_start
;
1243 unsigned long scan_start_tsf
;
1245 enum ieee80211_band scan_band
;
1246 struct cfg80211_scan_request
*scan_request
;
1247 struct ieee80211_vif
*scan_vif
;
1248 enum iwl_scan_type scan_type
;
1249 u8 scan_tx_ant
[IEEE80211_NUM_BANDS
];
1253 spinlock_t lock
; /* protect general shared data */
1254 spinlock_t hcmd_lock
; /* protect hcmd */
1255 spinlock_t reg_lock
; /* protect hw register access */
1258 /* basic pci-network driver stuff */
1259 struct pci_dev
*pci_dev
;
1261 /* pci hardware address support */
1262 void __iomem
*hw_base
;
1264 /* microcode/device supports multiple contexts */
1267 /* command queue number */
1270 /* max number of station keys */
1273 bool new_scan_threshold_behaviour
;
1275 /* EEPROM MAC addresses */
1276 struct mac_address addresses
[2];
1278 /* uCode images, save to reload in case of failure */
1279 int fw_index
; /* firmware we're trying to load */
1280 u32 ucode_ver
; /* version of ucode, copy of
1282 struct fw_img ucode_rt
;
1283 struct fw_img ucode_init
;
1285 enum iwlagn_ucode_subtype ucode_type
;
1286 u8 ucode_write_complete
; /* the image write is complete */
1287 char firmware_name
[25];
1289 struct iwl_rxon_context contexts
[NUM_IWL_RXON_CTX
];
1291 struct iwl_switch_rxon switch_rxon
;
1294 u32 error_event_table
;
1295 u32 log_event_table
;
1301 struct iwl_sensitivity_data sensitivity_data
;
1302 struct iwl_chain_noise_data chain_noise_data
;
1303 bool enhance_sensitivity_table
;
1304 __le16 sensitivity_tbl
[HD_TABLE_SIZE
];
1305 __le16 enhance_sensitivity_tbl
[ENHANCE_HD_TABLE_ENTRIES
];
1307 struct iwl_ht_config current_ht_config
;
1309 /* Rate scaling data */
1312 wait_queue_head_t wait_command_queue
;
1314 int activity_timer_active
;
1316 /* Rx and Tx DMA processing queues */
1317 struct iwl_rx_queue rxq
;
1318 struct iwl_tx_queue
*txq
;
1319 unsigned long txq_ctx_active_msk
;
1320 struct iwl_dma_ptr kw
; /* keep warm address */
1321 struct iwl_dma_ptr scd_bc_tbls
;
1323 u32 scd_base_addr
; /* scheduler sram base address */
1325 unsigned long status
;
1327 /* counts mgmt, ctl, and data packets */
1328 struct traffic_stats tx_stats
;
1329 struct traffic_stats rx_stats
;
1331 /* counts interrupts */
1332 struct isr_statistics isr_stats
;
1334 struct iwl_power_mgr power_data
;
1335 struct iwl_tt_mgmt thermal_throttle
;
1337 /* station table variables */
1339 /* Note: if lock and sta_lock are needed, lock must be acquired first */
1340 spinlock_t sta_lock
;
1342 struct iwl_station_entry stations
[IWLAGN_STATION_COUNT
];
1343 unsigned long ucode_key_table
;
1345 /* queue refcounts */
1346 #define IWL_MAX_HW_QUEUES 32
1347 unsigned long queue_stopped
[BITS_TO_LONGS(IWL_MAX_HW_QUEUES
)];
1349 atomic_t queue_stop_count
[4];
1351 /* Indication if ieee80211_ops->open has been called */
1354 u8 mac80211_registered
;
1356 /* eeprom -- this is in the card's little endian byte order */
1358 int nvm_device_type
;
1359 struct iwl_eeprom_calib_info
*calib_info
;
1361 enum nl80211_iftype iw_mode
;
1363 /* Last Rx'd beacon timestamp */
1368 struct statistics_general_common common
;
1369 struct statistics_rx_non_phy rx_non_phy
;
1370 struct statistics_rx_phy rx_ofdm
;
1371 struct statistics_rx_ht_phy rx_ofdm_ht
;
1372 struct statistics_rx_phy rx_cck
;
1373 struct statistics_tx tx
;
1374 #ifdef CONFIG_IWLWIFI_DEBUGFS
1375 struct statistics_bt_activity bt_activity
;
1376 __le32 num_bt_kills
, accum_num_bt_kills
;
1379 #ifdef CONFIG_IWLWIFI_DEBUGFS
1381 struct statistics_general_common common
;
1382 struct statistics_rx_non_phy rx_non_phy
;
1383 struct statistics_rx_phy rx_ofdm
;
1384 struct statistics_rx_ht_phy rx_ofdm_ht
;
1385 struct statistics_rx_phy rx_cck
;
1386 struct statistics_tx tx
;
1387 struct statistics_bt_activity bt_activity
;
1388 } accum_stats
, delta_stats
, max_delta_stats
;
1395 dma_addr_t ict_tbl_dma
;
1396 dma_addr_t aligned_ict_tbl_dma
;
1401 * reporting the number of tids has AGG on. 0 means
1406 struct iwl_rx_phy_res last_phy_res
;
1407 bool last_phy_res_valid
;
1409 struct completion firmware_loading_complete
;
1411 u32 init_evtlog_ptr
, init_evtlog_size
, init_errlog_ptr
;
1412 u32 inst_evtlog_ptr
, inst_evtlog_size
, inst_errlog_ptr
;
1415 * chain noise reset and gain commands are the
1416 * two extra calibration commands follows the standard
1417 * phy calibration commands
1419 u8 phy_calib_chain_noise_reset_cmd
;
1420 u8 phy_calib_chain_noise_gain_cmd
;
1422 /* counts reply_tx error */
1423 struct reply_tx_error_statistics reply_tx_stats
;
1424 struct reply_agg_tx_error_statistics reply_agg_tx_stats
;
1425 /* notification wait support */
1426 struct list_head notif_waits
;
1427 spinlock_t notif_wait_lock
;
1428 wait_queue_head_t notif_waitq
;
1430 /* remain-on-channel offload support */
1431 struct ieee80211_channel
*hw_roc_channel
;
1432 struct delayed_work hw_roc_work
;
1433 enum nl80211_channel_type hw_roc_chantype
;
1434 int hw_roc_duration
;
1437 struct sk_buff
*offchan_tx_skb
;
1438 int offchan_tx_timeout
;
1439 struct ieee80211_channel
*offchan_tx_chan
;
1445 u8 bt_traffic_load
, last_bt_traffic_load
;
1446 bool bt_ch_announce
;
1447 bool bt_full_concurrent
;
1448 bool bt_ant_couple_ok
;
1449 __le32 kill_ack_mask
;
1450 __le32 kill_cts_mask
;
1454 u16 dynamic_frag_thresh
;
1455 u8 bt_ci_compliance
;
1456 struct work_struct bt_traffic_change_work
;
1458 struct iwl_hw_params hw_params
;
1462 struct workqueue_struct
*workqueue
;
1464 struct work_struct restart
;
1465 struct work_struct scan_completed
;
1466 struct work_struct rx_replenish
;
1467 struct work_struct abort_scan
;
1469 struct work_struct beacon_update
;
1470 struct iwl_rxon_context
*beacon_ctx
;
1471 struct sk_buff
*beacon_skb
;
1474 struct work_struct tt_work
;
1475 struct work_struct ct_enter
;
1476 struct work_struct ct_exit
;
1477 struct work_struct start_internal_scan
;
1478 struct work_struct tx_flush
;
1479 struct work_struct bt_full_concurrency
;
1480 struct work_struct bt_runtime_config
;
1482 struct tasklet_struct irq_tasklet
;
1484 struct delayed_work scan_check
;
1487 s8 tx_power_user_lmt
;
1488 s8 tx_power_device_lmt
;
1489 s8 tx_power_lmt_in_half_dbm
; /* max tx power in half-dBm format */
1493 #ifdef CONFIG_IWLWIFI_DEBUG
1494 /* debugging info */
1495 u32 debug_level
; /* per device debugging will override global
1496 iwl_debug_level if set */
1497 #endif /* CONFIG_IWLWIFI_DEBUG */
1498 #ifdef CONFIG_IWLWIFI_DEBUGFS
1504 struct dentry
*debugfs_dir
;
1505 u32 dbgfs_sram_offset
, dbgfs_sram_len
;
1507 #endif /* CONFIG_IWLWIFI_DEBUGFS */
1509 struct work_struct txpower_work
;
1510 u32 disable_sens_cal
;
1511 u32 disable_chain_noise_cal
;
1512 struct work_struct run_time_calib_work
;
1513 struct timer_list statistics_periodic
;
1514 struct timer_list ucode_trace
;
1515 struct timer_list watchdog
;
1517 struct iwl_event_log event_log
;
1519 struct led_classdev led
;
1520 unsigned long blink_on
, blink_off
;
1521 bool led_registered
;
1522 #ifdef CONFIG_IWLWIFI_DEVICE_SVTOOL
1523 struct iwl_testmode_trace testmode_trace
;
1529 static inline void iwl_txq_ctx_activate(struct iwl_priv
*priv
, int txq_id
)
1531 set_bit(txq_id
, &priv
->txq_ctx_active_msk
);
1534 static inline void iwl_txq_ctx_deactivate(struct iwl_priv
*priv
, int txq_id
)
1536 clear_bit(txq_id
, &priv
->txq_ctx_active_msk
);
1539 #ifdef CONFIG_IWLWIFI_DEBUG
1541 * iwl_get_debug_level: Return active debug level for device
1543 * Using sysfs it is possible to set per device debug level. This debug
1544 * level will be used if set, otherwise the global debug level which can be
1545 * set via module parameter is used.
1547 static inline u32
iwl_get_debug_level(struct iwl_priv
*priv
)
1549 if (priv
->debug_level
)
1550 return priv
->debug_level
;
1552 return iwl_debug_level
;
1555 static inline u32
iwl_get_debug_level(struct iwl_priv
*priv
)
1557 return iwl_debug_level
;
1562 static inline struct ieee80211_hdr
*iwl_tx_queue_get_hdr(struct iwl_priv
*priv
,
1563 int txq_id
, int idx
)
1565 if (priv
->txq
[txq_id
].txb
[idx
].skb
)
1566 return (struct ieee80211_hdr
*)priv
->txq
[txq_id
].
1571 static inline struct iwl_rxon_context
*
1572 iwl_rxon_ctx_from_vif(struct ieee80211_vif
*vif
)
1574 struct iwl_vif_priv
*vif_priv
= (void *)vif
->drv_priv
;
1576 return vif_priv
->ctx
;
1579 #define for_each_context(priv, ctx) \
1580 for (ctx = &priv->contexts[IWL_RXON_CTX_BSS]; \
1581 ctx < &priv->contexts[NUM_IWL_RXON_CTX]; ctx++) \
1582 if (priv->valid_contexts & BIT(ctx->ctxid))
1584 static inline int iwl_is_associated_ctx(struct iwl_rxon_context
*ctx
)
1586 return (ctx
->active
.filter_flags
& RXON_FILTER_ASSOC_MSK
) ? 1 : 0;
1589 static inline int iwl_is_associated(struct iwl_priv
*priv
,
1590 enum iwl_rxon_context_id ctxid
)
1592 return iwl_is_associated_ctx(&priv
->contexts
[ctxid
]);
1595 static inline int iwl_is_any_associated(struct iwl_priv
*priv
)
1597 struct iwl_rxon_context
*ctx
;
1598 for_each_context(priv
, ctx
)
1599 if (iwl_is_associated_ctx(ctx
))
1604 static inline int is_channel_valid(const struct iwl_channel_info
*ch_info
)
1606 if (ch_info
== NULL
)
1608 return (ch_info
->flags
& EEPROM_CHANNEL_VALID
) ? 1 : 0;
1611 static inline int is_channel_radar(const struct iwl_channel_info
*ch_info
)
1613 return (ch_info
->flags
& EEPROM_CHANNEL_RADAR
) ? 1 : 0;
1616 static inline u8
is_channel_a_band(const struct iwl_channel_info
*ch_info
)
1618 return ch_info
->band
== IEEE80211_BAND_5GHZ
;
1621 static inline u8
is_channel_bg_band(const struct iwl_channel_info
*ch_info
)
1623 return ch_info
->band
== IEEE80211_BAND_2GHZ
;
1626 static inline int is_channel_passive(const struct iwl_channel_info
*ch
)
1628 return (!(ch
->flags
& EEPROM_CHANNEL_ACTIVE
)) ? 1 : 0;
1631 static inline int is_channel_ibss(const struct iwl_channel_info
*ch
)
1633 return ((ch
->flags
& EEPROM_CHANNEL_IBSS
)) ? 1 : 0;
1636 static inline void __iwl_free_pages(struct iwl_priv
*priv
, struct page
*page
)
1638 __free_pages(page
, priv
->hw_params
.rx_page_order
);
1641 static inline void iwl_free_pages(struct iwl_priv
*priv
, unsigned long page
)
1643 free_pages(page
, priv
->hw_params
.rx_page_order
);
1645 #endif /* __iwl_dev_h__ */