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"
52 #define DRV_NAME "iwlagn"
56 /* CT-KILL constants */
57 #define CT_KILL_THRESHOLD_LEGACY 110 /* in Celsius */
58 #define CT_KILL_THRESHOLD 114 /* in Celsius */
59 #define CT_KILL_EXIT_THRESHOLD 95 /* in Celsius */
61 /* Default noise level to report when noise measurement is not available.
62 * This may be because we're:
63 * 1) Not associated (4965, no beacon statistics being sent to driver)
64 * 2) Scanning (noise measurement does not apply to associated channel)
65 * 3) Receiving CCK (3945 delivers noise info only for OFDM frames)
66 * Use default noise value of -127 ... this is below the range of measurable
67 * Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
68 * Also, -127 works better than 0 when averaging frames with/without
69 * noise info (e.g. averaging might be done in app); measured dBm values are
70 * always negative ... using a negative value as the default keeps all
71 * averages within an s8's (used in some apps) range of negative values. */
72 #define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
75 * RTS threshold here is total size [2347] minus 4 FCS bytes
77 * a value of 0 means RTS on all data/management packets
78 * a value > max MSDU size means no RTS
79 * else RTS for data/management frames where MPDU is larger
82 #define DEFAULT_RTS_THRESHOLD 2347U
83 #define MIN_RTS_THRESHOLD 0U
84 #define MAX_RTS_THRESHOLD 2347U
85 #define MAX_MSDU_SIZE 2304U
86 #define MAX_MPDU_SIZE 2346U
87 #define DEFAULT_BEACON_INTERVAL 200U
88 #define DEFAULT_SHORT_RETRY_LIMIT 7U
89 #define DEFAULT_LONG_RETRY_LIMIT 4U
91 struct iwl_rx_mem_buffer {
94 struct list_head list;
97 #define rxb_addr(r) page_address(r->page)
100 struct iwl_device_cmd;
102 struct iwl_cmd_meta {
103 /* only for SYNC commands, iff the reply skb is wanted */
104 struct iwl_host_cmd *source;
106 * only for ASYNC commands
107 * (which is somewhat stupid -- look at iwl-sta.c for instance
108 * which duplicates a bunch of code because the callback isn't
109 * invoked for SYNC commands, if it were and its result passed
110 * through it would be simpler...)
112 void (*callback)(struct iwl_priv *priv,
113 struct iwl_device_cmd *cmd,
114 struct iwl_rx_packet *pkt);
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.
127 * Note the difference between n_bd and n_window: the hardware
128 * always assumes 256 descriptors, so n_bd is always 256 (unless
129 * there might be HW changes in the future). For the normal TX
130 * queues, n_window, which is the size of the software queue data
131 * is also 256; however, for the command queue, n_window is only
132 * 32 since we don't need so many commands pending. Since the HW
133 * still uses 256 BDs for DMA though, n_bd stays 256. As a result,
134 * the software buffers (in the variables @meta, @txb in struct
135 * iwl_tx_queue) only have 32 entries, while the HW buffers (@tfds
136 * in the same struct) have 256.
137 * This means that we end up with the following:
138 * HW entries: | 0 | ... | N * 32 | ... | N * 32 + 31 | ... | 255 |
139 * SW entries: | 0 | ... | 31 |
140 * where N is a number between 0 and 7. This means that the SW
141 * data is a window overlayed over the HW queue.
144 int n_bd; /* number of BDs in this queue */
145 int write_ptr; /* 1-st empty entry (index) host_w*/
146 int read_ptr; /* last used entry (index) host_r*/
147 /* use for monitoring and recovering the stuck queue */
148 dma_addr_t dma_addr; /* physical addr for BD's */
149 int n_window; /* safe queue window */
151 int low_mark; /* low watermark, resume queue if free
152 * space more than this */
153 int high_mark; /* high watermark, stop queue if free
154 * space less than this */
157 /* One for each TFD */
160 struct iwl_rxon_context *ctx;
164 * struct iwl_tx_queue - Tx Queue for DMA
165 * @q: generic Rx/Tx queue descriptor
166 * @bd: base of circular buffer of TFDs
167 * @cmd: array of command/TX buffer pointers
168 * @meta: array of meta data for each command/tx buffer
169 * @dma_addr_cmd: physical address of cmd/tx buffer array
170 * @txb: array of per-TFD driver data
171 * @time_stamp: time (in jiffies) of last read_ptr change
172 * @need_update: indicates need to update read/write index
173 * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
175 * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
176 * descriptors) and required locking structures.
178 #define TFD_TX_CMD_SLOTS 256
179 #define TFD_CMD_SLOTS 32
181 struct iwl_tx_queue {
183 struct iwl_tfd *tfds;
184 struct iwl_device_cmd **cmd;
185 struct iwl_cmd_meta *meta;
186 struct iwl_tx_info *txb;
187 unsigned long time_stamp;
194 #define IWL_NUM_SCAN_RATES (2)
197 * One for each channel, holds all channel setup data
198 * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
201 struct iwl_channel_info {
202 struct iwl_eeprom_channel eeprom; /* EEPROM regulatory limit */
203 struct iwl_eeprom_channel ht40_eeprom; /* EEPROM regulatory limit for
206 u8 channel; /* channel number */
207 u8 flags; /* flags copied from EEPROM */
208 s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
209 s8 curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) limit */
210 s8 min_power; /* always 0 */
211 s8 scan_power; /* (dBm) regul. eeprom, direct scans, any rate */
213 u8 group_index; /* 0-4, maps channel to group1/2/3/4/5 */
214 u8 band_index; /* 0-4, maps channel to band1/2/3/4/5 */
215 enum ieee80211_band band;
217 /* HT40 channel info */
218 s8 ht40_max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
219 u8 ht40_flags; /* flags copied from EEPROM */
220 u8 ht40_extension_channel; /* HT_IE_EXT_CHANNEL_* */
223 #define IWL_TX_FIFO_BK 0 /* shared */
224 #define IWL_TX_FIFO_BE 1
225 #define IWL_TX_FIFO_VI 2 /* shared */
226 #define IWL_TX_FIFO_VO 3
227 #define IWL_TX_FIFO_BK_IPAN IWL_TX_FIFO_BK
228 #define IWL_TX_FIFO_BE_IPAN 4
229 #define IWL_TX_FIFO_VI_IPAN IWL_TX_FIFO_VI
230 #define IWL_TX_FIFO_VO_IPAN 5
231 #define IWL_TX_FIFO_UNUSED -1
233 /* Minimum number of queues. MAX_NUM is defined in hw specific files.
234 * Set the minimum to accommodate the 4 standard TX queues, 1 command
235 * queue, 2 (unused) HCCA queues, and 4 HT queues (one for each AC) */
236 #define IWL_MIN_NUM_QUEUES 10
239 * Command queue depends on iPAN support.
241 #define IWL_DEFAULT_CMD_QUEUE_NUM 4
242 #define IWL_IPAN_CMD_QUEUE_NUM 9
245 * This queue number is required for proper operation
246 * because the ucode will stop/start the scheduler as
249 #define IWL_IPAN_MCAST_QUEUE 8
251 #define IEEE80211_DATA_LEN 2304
252 #define IEEE80211_4ADDR_LEN 30
253 #define IEEE80211_HLEN (IEEE80211_4ADDR_LEN)
254 #define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
257 #define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
258 #define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
259 #define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
265 CMD_ASYNC = (1 << 1),
266 CMD_WANT_SKB = (1 << 2),
267 CMD_MAPPED = (1 << 3),
270 #define DEF_CMD_PAYLOAD_SIZE 320
273 * struct iwl_device_cmd
275 * For allocation of the command and tx queues, this establishes the overall
276 * size of the largest command we send to uCode, except for commands that
277 * aren't fully copied and use other TFD space.
279 struct iwl_device_cmd {
280 struct iwl_cmd_header hdr; /* uCode API */
286 struct iwl_tx_cmd tx;
287 struct iwl6000_channel_switch_cmd chswitch;
288 u8 payload[DEF_CMD_PAYLOAD_SIZE];
292 #define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_device_cmd))
294 #define IWL_MAX_CMD_TFDS 2
296 enum iwl_hcmd_dataflag {
297 IWL_HCMD_DFL_NOCOPY = BIT(0),
300 struct iwl_host_cmd {
301 const void *data[IWL_MAX_CMD_TFDS];
302 unsigned long reply_page;
303 void (*callback)(struct iwl_priv *priv,
304 struct iwl_device_cmd *cmd,
305 struct iwl_rx_packet *pkt);
307 u16 len[IWL_MAX_CMD_TFDS];
308 u8 dataflags[IWL_MAX_CMD_TFDS];
312 #define SUP_RATE_11A_MAX_NUM_CHANNELS 8
313 #define SUP_RATE_11B_MAX_NUM_CHANNELS 4
314 #define SUP_RATE_11G_MAX_NUM_CHANNELS 12
317 * struct iwl_rx_queue - Rx queue
318 * @bd: driver's pointer to buffer of receive buffer descriptors (rbd)
319 * @bd_dma: bus address of buffer of receive buffer descriptors (rbd)
320 * @read: Shared index to newest available Rx buffer
321 * @write: Shared index to oldest written Rx packet
322 * @free_count: Number of pre-allocated buffers in rx_free
323 * @rx_free: list of free SKBs for use
324 * @rx_used: List of Rx buffers with no SKB
325 * @need_update: flag to indicate we need to update read/write index
326 * @rb_stts: driver's pointer to receive buffer status
327 * @rb_stts_dma: bus address of receive buffer status
329 * NOTE: rx_free and rx_used are used as a FIFO for iwl_rx_mem_buffers
331 struct iwl_rx_queue {
334 struct iwl_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
335 struct iwl_rx_mem_buffer *queue[RX_QUEUE_SIZE];
340 struct list_head rx_free;
341 struct list_head rx_used;
343 struct iwl_rb_status *rb_stts;
344 dma_addr_t rb_stts_dma;
348 #define IWL_SUPPORTED_RATES_IE_LEN 8
350 #define MAX_TID_COUNT 9
352 #define IWL_INVALID_RATE 0xFF
353 #define IWL_INVALID_VALUE -1
356 * struct iwl_ht_agg -- aggregation status while waiting for block-ack
357 * @txq_id: Tx queue used for Tx attempt
358 * @frame_count: # frames attempted by Tx command
359 * @wait_for_ba: Expect block-ack before next Tx reply
360 * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window
361 * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window
362 * @bitmap1: High order, one bit for each frame pending ACK in Tx window
363 * @rate_n_flags: Rate at which Tx was attempted
365 * If REPLY_TX indicates that aggregation was attempted, driver must wait
366 * for block ack (REPLY_COMPRESSED_BA). This struct stores tx reply info
367 * until block ack arrives.
376 #define IWL_AGG_OFF 0
378 #define IWL_EMPTYING_HW_QUEUE_ADDBA 2
379 #define IWL_EMPTYING_HW_QUEUE_DELBA 3
385 struct iwl_tid_data {
386 u16 seq_number; /* agn only */
388 struct iwl_ht_agg agg;
398 union iwl_ht_rate_supp {
406 #define CFG_HT_RX_AMPDU_FACTOR_8K (0x0)
407 #define CFG_HT_RX_AMPDU_FACTOR_16K (0x1)
408 #define CFG_HT_RX_AMPDU_FACTOR_32K (0x2)
409 #define CFG_HT_RX_AMPDU_FACTOR_64K (0x3)
410 #define CFG_HT_RX_AMPDU_FACTOR_DEF CFG_HT_RX_AMPDU_FACTOR_64K
411 #define CFG_HT_RX_AMPDU_FACTOR_MAX CFG_HT_RX_AMPDU_FACTOR_64K
412 #define CFG_HT_RX_AMPDU_FACTOR_MIN CFG_HT_RX_AMPDU_FACTOR_8K
415 * Maximal MPDU density for TX aggregation
421 #define CFG_HT_MPDU_DENSITY_2USEC (0x4)
422 #define CFG_HT_MPDU_DENSITY_4USEC (0x5)
423 #define CFG_HT_MPDU_DENSITY_8USEC (0x6)
424 #define CFG_HT_MPDU_DENSITY_16USEC (0x7)
425 #define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_4USEC
426 #define CFG_HT_MPDU_DENSITY_MAX CFG_HT_MPDU_DENSITY_16USEC
427 #define CFG_HT_MPDU_DENSITY_MIN (0x1)
429 struct iwl_ht_config {
430 bool single_chain_sufficient;
431 enum ieee80211_smps_mode smps; /* current smps mode */
435 struct iwl_qos_info {
437 struct iwl_qosparam_cmd def_qos_parm;
441 * Structure should be accessed with sta_lock held. When station addition
442 * is in progress (IWL_STA_UCODE_INPROGRESS) it is possible to access only
443 * the commands (iwl_addsta_cmd and iwl_link_quality_cmd) without sta_lock
446 struct iwl_station_entry {
447 struct iwl_addsta_cmd sta;
448 struct iwl_tid_data tid[MAX_TID_COUNT];
450 struct iwl_hw_key keyinfo;
451 struct iwl_link_quality_cmd *lq;
454 struct iwl_station_priv_common {
455 struct iwl_rxon_context *ctx;
460 * iwl_station_priv: Driver's private station information
462 * When mac80211 creates a station it reserves some space (hw->sta_data_size)
463 * in the structure for use by driver. This structure is places in that
466 struct iwl_station_priv {
467 struct iwl_station_priv_common common;
468 struct iwl_lq_sta lq_sta;
469 atomic_t pending_frames;
476 * struct iwl_vif_priv - driver's private per-interface information
478 * When mac80211 allocates a virtual interface, it can allocate
479 * space for us to put data into.
481 struct iwl_vif_priv {
482 struct iwl_rxon_context *ctx;
483 u8 ibss_bssid_sta_id;
486 /* one for each uCode image (inst/data, boot/init/runtime) */
488 void *v_addr; /* access by driver */
489 dma_addr_t p_addr; /* access by card's busmaster DMA */
494 struct fw_desc code, data;
497 /* v1/v2 uCode file layout */
498 struct iwl_ucode_header {
499 __le32 ver; /* major/minor/API/serial */
502 __le32 inst_size; /* bytes of runtime code */
503 __le32 data_size; /* bytes of runtime data */
504 __le32 init_size; /* bytes of init code */
505 __le32 init_data_size; /* bytes of init data */
506 __le32 boot_size; /* bytes of bootstrap code */
507 u8 data[0]; /* in same order as sizes */
510 __le32 build; /* build number */
511 __le32 inst_size; /* bytes of runtime code */
512 __le32 data_size; /* bytes of runtime data */
513 __le32 init_size; /* bytes of init code */
514 __le32 init_data_size; /* bytes of init data */
515 __le32 boot_size; /* bytes of bootstrap code */
516 u8 data[0]; /* in same order as sizes */
522 * new TLV uCode file layout
524 * The new TLV file format contains TLVs, that each specify
525 * some piece of data. To facilitate "groups", for example
526 * different instruction image with different capabilities,
527 * bundled with the same init image, an alternative mechanism
529 * When the alternative field is 0, that means that the item
530 * is always valid. When it is non-zero, then it is only
531 * valid in conjunction with items of the same alternative,
532 * in which case the driver (user) selects one alternative
536 enum iwl_ucode_tlv_type {
537 IWL_UCODE_TLV_INVALID = 0, /* unused */
538 IWL_UCODE_TLV_INST = 1,
539 IWL_UCODE_TLV_DATA = 2,
540 IWL_UCODE_TLV_INIT = 3,
541 IWL_UCODE_TLV_INIT_DATA = 4,
542 IWL_UCODE_TLV_BOOT = 5,
543 IWL_UCODE_TLV_PROBE_MAX_LEN = 6, /* a u32 value */
544 IWL_UCODE_TLV_PAN = 7,
545 IWL_UCODE_TLV_RUNT_EVTLOG_PTR = 8,
546 IWL_UCODE_TLV_RUNT_EVTLOG_SIZE = 9,
547 IWL_UCODE_TLV_RUNT_ERRLOG_PTR = 10,
548 IWL_UCODE_TLV_INIT_EVTLOG_PTR = 11,
549 IWL_UCODE_TLV_INIT_EVTLOG_SIZE = 12,
550 IWL_UCODE_TLV_INIT_ERRLOG_PTR = 13,
551 IWL_UCODE_TLV_ENHANCE_SENS_TBL = 14,
552 IWL_UCODE_TLV_PHY_CALIBRATION_SIZE = 15,
553 /* 16 and 17 reserved for future use */
554 IWL_UCODE_TLV_FLAGS = 18,
558 * enum iwl_ucode_tlv_flag - ucode API flags
559 * @IWL_UCODE_TLV_FLAGS_PAN: This is PAN capable microcode; this previously
560 * was a separate TLV but moved here to save space.
561 * @IWL_UCODE_TLV_FLAGS_NEWSCAN: new uCode scan behaviour on hidden SSID,
562 * treats good CRC threshold as a boolean
563 * @IWL_UCODE_TLV_FLAGS_MFP: This uCode image supports MFP (802.11w).
565 enum iwl_ucode_tlv_flag {
566 IWL_UCODE_TLV_FLAGS_PAN = BIT(0),
567 IWL_UCODE_TLV_FLAGS_NEWSCAN = BIT(1),
568 IWL_UCODE_TLV_FLAGS_MFP = BIT(2),
571 struct iwl_ucode_tlv {
572 __le16 type; /* see above */
573 __le16 alternative; /* see comment */
574 __le32 length; /* not including type/length fields */
578 #define IWL_TLV_UCODE_MAGIC 0x0a4c5749
580 struct iwl_tlv_ucode_header {
582 * The TLV style ucode header is distinguished from
583 * the v1/v2 style header by first four bytes being
584 * zero, as such is an invalid combination of
585 * major/minor/API/serial versions.
589 u8 human_readable[64];
590 __le32 ver; /* major/minor/API/serial */
592 __le64 alternatives; /* bitmask of valid alternatives */
594 * The data contained herein has a TLV layout,
595 * see above for the TLV header and types.
596 * Note that each TLV is padded to a length
597 * that is a multiple of 4 for alignment.
602 struct iwl_sensitivity_ranges {
609 u16 auto_corr_min_ofdm;
610 u16 auto_corr_min_ofdm_mrc;
611 u16 auto_corr_min_ofdm_x1;
612 u16 auto_corr_min_ofdm_mrc_x1;
614 u16 auto_corr_max_ofdm;
615 u16 auto_corr_max_ofdm_mrc;
616 u16 auto_corr_max_ofdm_x1;
617 u16 auto_corr_max_ofdm_mrc_x1;
619 u16 auto_corr_max_cck;
620 u16 auto_corr_max_cck_mrc;
621 u16 auto_corr_min_cck;
622 u16 auto_corr_min_cck_mrc;
624 u16 barker_corr_th_min;
625 u16 barker_corr_th_min_mrc;
630 #define KELVIN_TO_CELSIUS(x) ((x)-273)
631 #define CELSIUS_TO_KELVIN(x) ((x)+273)
635 * struct iwl_hw_params
636 * @max_txq_num: Max # Tx queues supported
637 * @dma_chnl_num: Number of Tx DMA/FIFO channels
638 * @scd_bc_tbls_size: size of scheduler byte count tables
639 * @tfd_size: TFD size
640 * @tx/rx_chains_num: Number of TX/RX chains
641 * @valid_tx/rx_ant: usable antennas
642 * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
643 * @max_rxq_log: Log-base-2 of max_rxq_size
644 * @rx_page_order: Rx buffer page order
645 * @rx_wrt_ptr_reg: FH{39}_RSCSR_CHNL0_WPTR
647 * @ht40_channel: is 40MHz width possible in band 2.4
648 * BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ)
649 * @sw_crypto: 0 for hw, 1 for sw
650 * @max_xxx_size: for ucode uses
651 * @ct_kill_threshold: temperature threshold
652 * @beacon_time_tsf_bits: number of valid tsf bits for beacon time
653 * @calib_init_cfg: setup initial calibrations for the hw
654 * @calib_rt_cfg: setup runtime calibrations for the hw
655 * @struct iwl_sensitivity_ranges: range of sensitivity values
657 struct iwl_hw_params {
660 u16 scd_bc_tbls_size;
672 u8 max_beacon_itrvl; /* in 1024 ms */
675 u32 ct_kill_threshold; /* value in hw-dependent units */
676 u32 ct_kill_exit_threshold; /* value in hw-dependent units */
677 /* for 1000, 6000 series and up */
678 u16 beacon_time_tsf_bits;
681 const struct iwl_sensitivity_ranges *sens;
685 /******************************************************************************
687 * Functions implemented in core module which are forward declared here
688 * for use by iwl-[4-5].c
690 * NOTE: The implementation of these functions are not hardware specific
691 * which is why they are in the core module files.
693 * Naming convention --
694 * iwl_ <-- Is part of iwlwifi
695 * iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
697 ****************************************************************************/
698 extern void iwl_update_chain_flags(struct iwl_priv *priv);
699 extern const u8 iwl_bcast_addr[ETH_ALEN];
700 extern int iwl_rxq_stop(struct iwl_priv *priv);
701 extern void iwl_txq_ctx_stop(struct iwl_priv *priv);
702 extern int iwl_queue_space(const struct iwl_queue *q);
703 static inline int iwl_queue_used(const struct iwl_queue *q, int i)
705 return q->write_ptr >= q->read_ptr ?
706 (i >= q->read_ptr && i < q->write_ptr) :
707 !(i < q->read_ptr && i >= q->write_ptr);
711 static inline u8 get_cmd_index(struct iwl_queue *q, u32 index)
713 return index & (q->n_window - 1);
723 #define IWL_OPERATION_MODE_AUTO 0
724 #define IWL_OPERATION_MODE_HT_ONLY 1
725 #define IWL_OPERATION_MODE_MIXED 2
726 #define IWL_OPERATION_MODE_20MHZ 3
728 #define IWL_TX_CRC_SIZE 4
729 #define IWL_TX_DELIMITER_SIZE 4
731 #define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
733 /* Sensitivity and chain noise calibration */
734 #define INITIALIZATION_VALUE 0xFFFF
735 #define IWL_CAL_NUM_BEACONS 16
736 #define MAXIMUM_ALLOWED_PATHLOSS 15
738 #define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
740 #define MAX_FA_OFDM 50
741 #define MIN_FA_OFDM 5
742 #define MAX_FA_CCK 50
745 #define AUTO_CORR_STEP_OFDM 1
747 #define AUTO_CORR_STEP_CCK 3
748 #define AUTO_CORR_MAX_TH_CCK 160
751 #define NRG_STEP_CCK 2
753 #define MAX_NUMBER_CCK_NO_FA 100
755 #define AUTO_CORR_CCK_MIN_VAL_DEF (125)
760 #define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
761 #define ALL_BAND_FILTER 0xFF00
762 #define IN_BAND_FILTER 0xFF
763 #define MIN_AVERAGE_NOISE_MAX_VALUE 0xFFFFFFFF
765 #define NRG_NUM_PREV_STAT_L 20
766 #define NUM_RX_CHAINS 3
768 enum iwlagn_false_alarm_state {
771 IWL_FA_GOOD_RANGE = 2,
774 enum iwlagn_chain_noise_state {
775 IWL_CHAIN_NOISE_ALIVE = 0, /* must be 0 */
776 IWL_CHAIN_NOISE_ACCUMULATE,
777 IWL_CHAIN_NOISE_CALIBRATED,
778 IWL_CHAIN_NOISE_DONE,
784 * defines the order in which results of initial calibrations
785 * should be sent to the runtime uCode
792 IWL_CALIB_TX_IQ_PERD,
794 IWL_CALIB_TEMP_OFFSET,
798 /* Opaque calibration results */
799 struct iwl_calib_result {
804 /* Sensitivity calib data */
805 struct iwl_sensitivity_data {
807 u32 auto_corr_ofdm_mrc;
808 u32 auto_corr_ofdm_x1;
809 u32 auto_corr_ofdm_mrc_x1;
811 u32 auto_corr_cck_mrc;
813 u32 last_bad_plcp_cnt_ofdm;
814 u32 last_fa_cnt_ofdm;
815 u32 last_bad_plcp_cnt_cck;
821 u8 nrg_silence_rssi[NRG_NUM_PREV_STAT_L];
826 s32 nrg_auto_corr_silence_diff;
827 u32 num_in_cck_no_fa;
830 u16 barker_corr_th_min;
831 u16 barker_corr_th_min_mrc;
835 /* Chain noise (differential Rx gain) calib data */
836 struct iwl_chain_noise_data {
845 u8 disconn_array[NUM_RX_CHAINS];
846 u8 delta_gain_code[NUM_RX_CHAINS];
851 #define EEPROM_SEM_TIMEOUT 10 /* milliseconds */
852 #define EEPROM_SEM_RETRY_LIMIT 1000 /* number of attempts (not time) */
854 #define IWL_TRAFFIC_ENTRIES (256)
855 #define IWL_TRAFFIC_ENTRY_SIZE (64)
858 MEASUREMENT_READY = (1 << 0),
859 MEASUREMENT_ACTIVE = (1 << 1),
863 NVM_DEVICE_TYPE_EEPROM = 0,
868 * Two types of OTP memory access modes
869 * IWL_OTP_ACCESS_ABSOLUTE - absolute address mode,
870 * based on physical memory addressing
871 * IWL_OTP_ACCESS_RELATIVE - relative address mode,
872 * based on logical memory addressing
874 enum iwl_access_mode {
875 IWL_OTP_ACCESS_ABSOLUTE,
876 IWL_OTP_ACCESS_RELATIVE,
880 * enum iwl_pa_type - Power Amplifier type
881 * @IWL_PA_SYSTEM: based on uCode configuration
882 * @IWL_PA_INTERNAL: use Internal only
889 /* interrupt statistics */
890 struct isr_statistics {
900 u32 rx_handlers[REPLY_MAX];
905 /* reply_tx_statistics (for _agn devices) */
906 struct reply_tx_error_statistics {
912 u32 int_crossed_retry;
928 u32 sta_color_mismatch;
932 /* reply_agg_tx_statistics (for _agn devices) */
933 struct reply_agg_tx_error_statistics {
940 u32 last_sent_bt_kill;
949 /* management statistics */
950 enum iwl_mgmt_stats {
951 MANAGEMENT_ASSOC_REQ = 0,
952 MANAGEMENT_ASSOC_RESP,
953 MANAGEMENT_REASSOC_REQ,
954 MANAGEMENT_REASSOC_RESP,
955 MANAGEMENT_PROBE_REQ,
956 MANAGEMENT_PROBE_RESP,
965 /* control statistics */
966 enum iwl_ctrl_stats {
967 CONTROL_BACK_REQ = 0,
978 struct traffic_stats {
979 #ifdef CONFIG_IWLWIFI_DEBUGFS
980 u32 mgmt[MANAGEMENT_MAX];
981 u32 ctrl[CONTROL_MAX];
988 * schedule the timer to wake up every UCODE_TRACE_PERIOD milliseconds
989 * to perform continuous uCode event logging operation if enabled
991 #define UCODE_TRACE_PERIOD (100)
994 * iwl_event_log: current uCode event log position
996 * @ucode_trace: enable/disable ucode continuous trace timer
997 * @num_wraps: how many times the event buffer wraps
998 * @next_entry: the entry just before the next one that uCode would fill
999 * @non_wraps_count: counter for no wrap detected when dump ucode events
1000 * @wraps_once_count: counter for wrap once detected when dump ucode events
1001 * @wraps_more_count: counter for wrap more than once detected
1002 * when dump ucode events
1004 struct iwl_event_log {
1008 int non_wraps_count;
1009 int wraps_once_count;
1010 int wraps_more_count;
1014 * host interrupt timeout value
1015 * used with setting interrupt coalescing timer
1016 * the CSR_INT_COALESCING is an 8 bit register in 32-usec unit
1018 * default interrupt coalescing timer is 64 x 32 = 2048 usecs
1019 * default interrupt coalescing calibration timer is 16 x 32 = 512 usecs
1021 #define IWL_HOST_INT_TIMEOUT_MAX (0xFF)
1022 #define IWL_HOST_INT_TIMEOUT_DEF (0x40)
1023 #define IWL_HOST_INT_TIMEOUT_MIN (0x0)
1024 #define IWL_HOST_INT_CALIB_TIMEOUT_MAX (0xFF)
1025 #define IWL_HOST_INT_CALIB_TIMEOUT_DEF (0x10)
1026 #define IWL_HOST_INT_CALIB_TIMEOUT_MIN (0x0)
1029 * This is the threshold value of plcp error rate per 100mSecs. It is
1030 * used to set and check for the validity of plcp_delta.
1032 #define IWL_MAX_PLCP_ERR_THRESHOLD_MIN (1)
1033 #define IWL_MAX_PLCP_ERR_THRESHOLD_DEF (50)
1034 #define IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF (100)
1035 #define IWL_MAX_PLCP_ERR_EXT_LONG_THRESHOLD_DEF (200)
1036 #define IWL_MAX_PLCP_ERR_THRESHOLD_MAX (255)
1037 #define IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE (0)
1039 #define IWL_DELAY_NEXT_FORCE_RF_RESET (HZ*3)
1040 #define IWL_DELAY_NEXT_FORCE_FW_RELOAD (HZ*5)
1042 /* TX queue watchdog timeouts in mSecs */
1043 #define IWL_DEF_WD_TIMEOUT (2000)
1044 #define IWL_LONG_WD_TIMEOUT (10000)
1045 #define IWL_MAX_WD_TIMEOUT (120000)
1047 /* BT Antenna Coupling Threshold (dB) */
1048 #define IWL_BT_ANTENNA_COUPLING_THRESHOLD (35)
1050 /* Firmware reload counter and Timestamp */
1051 #define IWL_MIN_RELOAD_DURATION 1000 /* 1000 ms */
1052 #define IWL_MAX_CONTINUE_RELOAD_CNT 4
1058 IWL_MAX_FORCE_RESET,
1061 struct iwl_force_reset {
1062 int reset_request_count;
1063 int reset_success_count;
1064 int reset_reject_count;
1065 unsigned long reset_duration;
1066 unsigned long last_force_reset_jiffies;
1069 /* extend beacon time format bit shifting */
1072 * bits 31:22 - extended
1073 * bits 21:0 - interval
1075 #define IWLAGN_EXT_BEACON_TIME_POS 22
1078 * struct iwl_notification_wait - notification wait entry
1079 * @list: list head for global list
1080 * @fn: function called with the notification
1083 * This structure is not used directly, to wait for a
1084 * notification declare it on the stack, and call
1085 * iwlagn_init_notification_wait() with appropriate
1086 * parameters. Then do whatever will cause the ucode
1087 * to notify the driver, and to wait for that then
1088 * call iwlagn_wait_notification().
1090 * Each notification is one-shot. If at some point we
1091 * need to support multi-shot notifications (which
1092 * can't be allocated on the stack) we need to modify
1093 * the code for them.
1095 struct iwl_notification_wait {
1096 struct list_head list;
1098 void (*fn)(struct iwl_priv *priv, struct iwl_rx_packet *pkt,
1103 bool triggered, aborted;
1106 enum iwl_rxon_context_id {
1113 struct iwl_rxon_context {
1114 struct ieee80211_vif *vif;
1116 const u8 *ac_to_fifo;
1117 const u8 *ac_to_queue;
1121 * We could use the vif to indicate active, but we
1122 * also need it to be active during disabling when
1123 * we already removed the vif for type setting.
1125 bool always_active, is_active;
1127 bool ht_need_multiple_chains;
1129 enum iwl_rxon_context_id ctxid;
1131 u32 interface_modes, exclusive_interface_modes;
1132 u8 unused_devtype, ap_devtype, ibss_devtype, station_devtype;
1135 * We declare this const so it can only be
1136 * changed via explicit cast within the
1137 * routines that actually update the physical
1140 const struct iwl_rxon_cmd active;
1141 struct iwl_rxon_cmd staging;
1143 struct iwl_rxon_time_cmd timing;
1145 struct iwl_qos_info qos_data;
1147 u8 bcast_sta_id, ap_sta_id;
1149 u8 rxon_cmd, rxon_assoc_cmd, rxon_timing_cmd;
1153 struct iwl_wep_key wep_keys[WEP_KEYS_MAX];
1154 u8 key_mapping_keys;
1156 __le32 station_flags;
1159 bool non_gf_sta_present;
1161 bool enabled, is_40mhz;
1162 u8 extension_chan_offset;
1165 bool last_tx_rejected;
1168 enum iwl_scan_type {
1170 IWL_SCAN_RADIO_RESET,
1174 enum iwlagn_ucode_type {
1181 #ifdef CONFIG_IWLWIFI_DEVICE_SVTOOL
1182 struct iwl_testmode_trace {
1188 dma_addr_t dma_addr;
1196 * struct iwl_bus_ops - bus specific operations
1198 * @get_pm_support: must returns true if the bus can go to sleep
1199 * @apm_config: will be called during the config of the APM configuration
1200 * @set_drv_data: set the priv pointer to the bus layer
1201 * @get_dev: returns the device struct
1202 * @get_irq: returns the irq number
1203 * @get_hw_id: prints the hw_id in the provided buffer
1204 * @write8: write a byte to register at offset ofs
1205 * @write32: write a dword to register at offset ofs
1206 * @wread32: read a dword at register at offset ofs
1208 struct iwl_bus_ops {
1209 bool (*get_pm_support)(struct iwl_bus *bus);
1210 void (*apm_config)(struct iwl_bus *bus);
1211 void (*set_drv_data)(struct iwl_bus *bus, void *priv);
1212 struct device *(*get_dev)(const struct iwl_bus *bus);
1213 unsigned int (*get_irq)(const struct iwl_bus *bus);
1214 void (*get_hw_id)(struct iwl_bus *bus, char buf[], int buf_len);
1215 void (*write8)(struct iwl_bus *bus, u32 ofs, u8 val);
1216 void (*write32)(struct iwl_bus *bus, u32 ofs, u32 val);
1217 u32 (*read32)(struct iwl_bus *bus, u32 ofs);
1221 /* pointer to bus specific struct */
1224 /* Common data to all buses */
1225 struct iwl_priv *priv; /* driver's context */
1227 struct iwl_bus_ops *ops;
1233 /* ieee device used by generic ieee processing code */
1234 struct ieee80211_hw *hw;
1235 struct ieee80211_channel *ieee_channels;
1236 struct ieee80211_rate *ieee_rates;
1237 struct iwl_cfg *cfg;
1239 enum ieee80211_band band;
1241 void (*pre_rx_handler)(struct iwl_priv *priv,
1242 struct iwl_rx_mem_buffer *rxb);
1243 void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv,
1244 struct iwl_rx_mem_buffer *rxb);
1246 struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
1248 /* spectrum measurement report caching */
1249 struct iwl_spectrum_notification measure_report;
1250 u8 measurement_status;
1252 /* ucode beacon time */
1253 u32 ucode_beacon_time;
1254 int missed_beacon_threshold;
1256 /* track IBSS manager (last beacon) status */
1259 /* jiffies when last recovery from statistics was performed */
1260 unsigned long rx_statistics_jiffies;
1263 struct iwl_force_reset force_reset[IWL_MAX_FORCE_RESET];
1265 /* firmware reload counter and timestamp */
1266 unsigned long reload_jiffies;
1269 /* we allocate array of iwl_channel_info for NIC's valid channels.
1270 * Access via channel # using indirect index array */
1271 struct iwl_channel_info *channel_info; /* channel info array */
1272 u8 channel_count; /* # of channels */
1274 /* thermal calibration */
1275 s32 temperature; /* degrees Kelvin */
1276 s32 last_temperature;
1278 /* init calibration results */
1279 struct iwl_calib_result calib_results[IWL_CALIB_MAX];
1281 /* Scan related variables */
1282 unsigned long scan_start;
1283 unsigned long scan_start_tsf;
1285 enum ieee80211_band scan_band;
1286 struct cfg80211_scan_request *scan_request;
1287 struct ieee80211_vif *scan_vif;
1288 enum iwl_scan_type scan_type;
1289 u8 scan_tx_ant[IEEE80211_NUM_BANDS];
1293 spinlock_t lock; /* protect general shared data */
1294 spinlock_t hcmd_lock; /* protect hcmd */
1295 spinlock_t reg_lock; /* protect hw register access */
1298 struct iwl_bus bus; /* bus specific data */
1300 /* microcode/device supports multiple contexts */
1303 /* command queue number */
1305 u8 last_sync_cmd_id;
1307 /* max number of station keys */
1310 bool new_scan_threshold_behaviour;
1312 /* EEPROM MAC addresses */
1313 struct mac_address addresses[2];
1315 /* uCode images, save to reload in case of failure */
1316 int fw_index; /* firmware we're trying to load */
1317 u32 ucode_ver; /* version of ucode, copy of
1319 struct fw_img ucode_rt;
1320 struct fw_img ucode_init;
1322 enum iwlagn_ucode_type ucode_type;
1323 u8 ucode_write_complete; /* the image write is complete */
1324 char firmware_name[25];
1326 struct iwl_rxon_context contexts[NUM_IWL_RXON_CTX];
1328 __le16 switch_channel;
1331 u32 error_event_table;
1332 u32 log_event_table;
1338 struct iwl_sensitivity_data sensitivity_data;
1339 struct iwl_chain_noise_data chain_noise_data;
1340 bool enhance_sensitivity_table;
1341 __le16 sensitivity_tbl[HD_TABLE_SIZE];
1342 __le16 enhance_sensitivity_tbl[ENHANCE_HD_TABLE_ENTRIES];
1344 struct iwl_ht_config current_ht_config;
1346 /* Rate scaling data */
1349 wait_queue_head_t wait_command_queue;
1351 int activity_timer_active;
1353 /* Rx and Tx DMA processing queues */
1354 struct iwl_rx_queue rxq;
1355 struct iwl_tx_queue *txq;
1356 unsigned long txq_ctx_active_msk;
1357 struct iwl_dma_ptr kw; /* keep warm address */
1358 struct iwl_dma_ptr scd_bc_tbls;
1360 u32 scd_base_addr; /* scheduler sram base address */
1362 unsigned long status;
1364 /* counts mgmt, ctl, and data packets */
1365 struct traffic_stats tx_stats;
1366 struct traffic_stats rx_stats;
1368 /* counts interrupts */
1369 struct isr_statistics isr_stats;
1371 struct iwl_power_mgr power_data;
1372 struct iwl_tt_mgmt thermal_throttle;
1374 /* station table variables */
1376 /* Note: if lock and sta_lock are needed, lock must be acquired first */
1377 spinlock_t sta_lock;
1379 struct iwl_station_entry stations[IWLAGN_STATION_COUNT];
1380 unsigned long ucode_key_table;
1382 /* queue refcounts */
1383 #define IWL_MAX_HW_QUEUES 32
1384 unsigned long queue_stopped[BITS_TO_LONGS(IWL_MAX_HW_QUEUES)];
1386 atomic_t queue_stop_count[4];
1388 /* Indication if ieee80211_ops->open has been called */
1391 u8 mac80211_registered;
1393 /* eeprom -- this is in the card's little endian byte order */
1395 int nvm_device_type;
1396 struct iwl_eeprom_calib_info *calib_info;
1398 enum nl80211_iftype iw_mode;
1400 /* Last Rx'd beacon timestamp */
1405 struct statistics_general_common common;
1406 struct statistics_rx_non_phy rx_non_phy;
1407 struct statistics_rx_phy rx_ofdm;
1408 struct statistics_rx_ht_phy rx_ofdm_ht;
1409 struct statistics_rx_phy rx_cck;
1410 struct statistics_tx tx;
1411 #ifdef CONFIG_IWLWIFI_DEBUGFS
1412 struct statistics_bt_activity bt_activity;
1413 __le32 num_bt_kills, accum_num_bt_kills;
1416 #ifdef CONFIG_IWLWIFI_DEBUGFS
1418 struct statistics_general_common common;
1419 struct statistics_rx_non_phy rx_non_phy;
1420 struct statistics_rx_phy rx_ofdm;
1421 struct statistics_rx_ht_phy rx_ofdm_ht;
1422 struct statistics_rx_phy rx_cck;
1423 struct statistics_tx tx;
1424 struct statistics_bt_activity bt_activity;
1425 } accum_stats, delta_stats, max_delta_stats;
1432 dma_addr_t ict_tbl_dma;
1433 dma_addr_t aligned_ict_tbl_dma;
1438 * reporting the number of tids has AGG on. 0 means
1443 struct iwl_rx_phy_res last_phy_res;
1444 bool last_phy_res_valid;
1446 struct completion firmware_loading_complete;
1448 u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr;
1449 u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr;
1452 * chain noise reset and gain commands are the
1453 * two extra calibration commands follows the standard
1454 * phy calibration commands
1456 u8 phy_calib_chain_noise_reset_cmd;
1457 u8 phy_calib_chain_noise_gain_cmd;
1459 /* counts reply_tx error */
1460 struct reply_tx_error_statistics reply_tx_stats;
1461 struct reply_agg_tx_error_statistics reply_agg_tx_stats;
1462 /* notification wait support */
1463 struct list_head notif_waits;
1464 spinlock_t notif_wait_lock;
1465 wait_queue_head_t notif_waitq;
1467 /* remain-on-channel offload support */
1468 struct ieee80211_channel *hw_roc_channel;
1469 struct delayed_work hw_roc_work;
1470 enum nl80211_channel_type hw_roc_chantype;
1471 int hw_roc_duration;
1474 struct sk_buff *offchan_tx_skb;
1475 int offchan_tx_timeout;
1476 struct ieee80211_channel *offchan_tx_chan;
1482 u8 bt_traffic_load, last_bt_traffic_load;
1483 bool bt_ch_announce;
1484 bool bt_full_concurrent;
1485 bool bt_ant_couple_ok;
1486 __le32 kill_ack_mask;
1487 __le32 kill_cts_mask;
1491 u16 dynamic_frag_thresh;
1492 u8 bt_ci_compliance;
1493 struct work_struct bt_traffic_change_work;
1495 struct iwl_hw_params hw_params;
1499 struct workqueue_struct *workqueue;
1501 struct work_struct restart;
1502 struct work_struct scan_completed;
1503 struct work_struct rx_replenish;
1504 struct work_struct abort_scan;
1506 struct work_struct beacon_update;
1507 struct iwl_rxon_context *beacon_ctx;
1508 struct sk_buff *beacon_skb;
1511 struct work_struct tt_work;
1512 struct work_struct ct_enter;
1513 struct work_struct ct_exit;
1514 struct work_struct start_internal_scan;
1515 struct work_struct tx_flush;
1516 struct work_struct bt_full_concurrency;
1517 struct work_struct bt_runtime_config;
1519 struct tasklet_struct irq_tasklet;
1521 struct delayed_work scan_check;
1524 s8 tx_power_user_lmt;
1525 s8 tx_power_device_lmt;
1526 s8 tx_power_lmt_in_half_dbm; /* max tx power in half-dBm format */
1530 #ifdef CONFIG_IWLWIFI_DEBUG
1531 /* debugging info */
1532 u32 debug_level; /* per device debugging will override global
1533 iwl_debug_level if set */
1534 #endif /* CONFIG_IWLWIFI_DEBUG */
1535 #ifdef CONFIG_IWLWIFI_DEBUGFS
1541 struct dentry *debugfs_dir;
1542 u32 dbgfs_sram_offset, dbgfs_sram_len;
1544 #endif /* CONFIG_IWLWIFI_DEBUGFS */
1546 struct work_struct txpower_work;
1547 u32 disable_sens_cal;
1548 u32 disable_chain_noise_cal;
1549 struct work_struct run_time_calib_work;
1550 struct timer_list statistics_periodic;
1551 struct timer_list ucode_trace;
1552 struct timer_list watchdog;
1554 struct iwl_event_log event_log;
1556 struct led_classdev led;
1557 unsigned long blink_on, blink_off;
1558 bool led_registered;
1559 #ifdef CONFIG_IWLWIFI_DEVICE_SVTOOL
1560 struct iwl_testmode_trace testmode_trace;
1566 static inline void iwl_txq_ctx_activate(struct iwl_priv *priv, int txq_id)
1568 set_bit(txq_id, &priv->txq_ctx_active_msk);
1571 static inline void iwl_txq_ctx_deactivate(struct iwl_priv *priv, int txq_id)
1573 clear_bit(txq_id, &priv->txq_ctx_active_msk);
1576 #ifdef CONFIG_IWLWIFI_DEBUG
1578 * iwl_get_debug_level: Return active debug level for device
1580 * Using sysfs it is possible to set per device debug level. This debug
1581 * level will be used if set, otherwise the global debug level which can be
1582 * set via module parameter is used.
1584 static inline u32 iwl_get_debug_level(struct iwl_priv *priv)
1586 if (priv->debug_level)
1587 return priv->debug_level;
1589 return iwl_debug_level;
1592 static inline u32 iwl_get_debug_level(struct iwl_priv *priv)
1594 return iwl_debug_level;
1599 static inline struct ieee80211_hdr *iwl_tx_queue_get_hdr(struct iwl_priv *priv,
1600 int txq_id, int idx)
1602 if (priv->txq[txq_id].txb[idx].skb)
1603 return (struct ieee80211_hdr *)priv->txq[txq_id].
1608 static inline struct iwl_rxon_context *
1609 iwl_rxon_ctx_from_vif(struct ieee80211_vif *vif)
1611 struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
1613 return vif_priv->ctx;
1616 #define for_each_context(priv, ctx) \
1617 for (ctx = &priv->contexts[IWL_RXON_CTX_BSS]; \
1618 ctx < &priv->contexts[NUM_IWL_RXON_CTX]; ctx++) \
1619 if (priv->valid_contexts & BIT(ctx->ctxid))
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 iwl_is_associated(struct iwl_priv *priv,
1627 enum iwl_rxon_context_id ctxid)
1629 return iwl_is_associated_ctx(&priv->contexts[ctxid]);
1632 static inline int iwl_is_any_associated(struct iwl_priv *priv)
1634 struct iwl_rxon_context *ctx;
1635 for_each_context(priv, ctx)
1636 if (iwl_is_associated_ctx(ctx))
1641 static inline int is_channel_valid(const struct iwl_channel_info *ch_info)
1643 if (ch_info == NULL)
1645 return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
1648 static inline int is_channel_radar(const struct iwl_channel_info *ch_info)
1650 return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
1653 static inline u8 is_channel_a_band(const struct iwl_channel_info *ch_info)
1655 return ch_info->band == IEEE80211_BAND_5GHZ;
1658 static inline u8 is_channel_bg_band(const struct iwl_channel_info *ch_info)
1660 return ch_info->band == IEEE80211_BAND_2GHZ;
1663 static inline int is_channel_passive(const struct iwl_channel_info *ch)
1665 return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
1668 static inline int is_channel_ibss(const struct iwl_channel_info *ch)
1670 return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
1673 static inline void __iwl_free_pages(struct iwl_priv *priv, struct page *page)
1675 __free_pages(page, priv->hw_params.rx_page_order);
1678 static inline void iwl_free_pages(struct iwl_priv *priv, unsigned long page)
1680 free_pages(page, priv->hw_params.rx_page_order);
1682 #endif /* __iwl_dev_h__ */