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/pci.h> /* for struct pci_device_id */
35 #include <linux/kernel.h>
36 #include <linux/wait.h>
37 #include <linux/leds.h>
38 #include <net/ieee80211_radiotap.h>
40 #include "iwl-eeprom.h"
44 #include "iwl-debug.h"
45 #include "iwl-agn-hw.h"
47 #include "iwl-power.h"
48 #include "iwl-agn-rs.h"
49 #include "iwl-agn-tt.h"
51 #include "iwl-trans.h"
53 #define DRV_NAME "iwlagn"
57 /* CT-KILL constants */
58 #define CT_KILL_THRESHOLD_LEGACY 110 /* in Celsius */
59 #define CT_KILL_THRESHOLD 114 /* in Celsius */
60 #define CT_KILL_EXIT_THRESHOLD 95 /* in Celsius */
62 /* Default noise level to report when noise measurement is not available.
63 * This may be because we're:
64 * 1) Not associated (4965, no beacon statistics being sent to driver)
65 * 2) Scanning (noise measurement does not apply to associated channel)
66 * 3) Receiving CCK (3945 delivers noise info only for OFDM frames)
67 * Use default noise value of -127 ... this is below the range of measurable
68 * Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
69 * Also, -127 works better than 0 when averaging frames with/without
70 * noise info (e.g. averaging might be done in app); measured dBm values are
71 * always negative ... using a negative value as the default keeps all
72 * averages within an s8's (used in some apps) range of negative values. */
73 #define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
76 * RTS threshold here is total size [2347] minus 4 FCS bytes
78 * a value of 0 means RTS on all data/management packets
79 * a value > max MSDU size means no RTS
80 * else RTS for data/management frames where MPDU is larger
83 #define DEFAULT_RTS_THRESHOLD 2347U
84 #define MIN_RTS_THRESHOLD 0U
85 #define MAX_RTS_THRESHOLD 2347U
86 #define MAX_MSDU_SIZE 2304U
87 #define MAX_MPDU_SIZE 2346U
88 #define DEFAULT_BEACON_INTERVAL 200U
89 #define DEFAULT_SHORT_RETRY_LIMIT 7U
90 #define DEFAULT_LONG_RETRY_LIMIT 4U
92 struct iwl_rx_mem_buffer {
95 struct list_head list;
98 #define rxb_addr(r) page_address(r->page)
101 struct iwl_device_cmd;
103 struct iwl_cmd_meta {
104 /* only for SYNC commands, iff the reply skb is wanted */
105 struct iwl_host_cmd *source;
107 * only for ASYNC commands
108 * (which is somewhat stupid -- look at iwl-sta.c for instance
109 * which duplicates a bunch of code because the callback isn't
110 * invoked for SYNC commands, if it were and its result passed
111 * through it would be simpler...)
113 void (*callback)(struct iwl_priv *priv,
114 struct iwl_device_cmd *cmd,
115 struct iwl_rx_packet *pkt);
119 DEFINE_DMA_UNMAP_ADDR(mapping);
120 DEFINE_DMA_UNMAP_LEN(len);
124 * Generic queue structure
126 * Contains common data for Rx and Tx queues.
128 * Note the difference between n_bd and n_window: the hardware
129 * always assumes 256 descriptors, so n_bd is always 256 (unless
130 * there might be HW changes in the future). For the normal TX
131 * queues, n_window, which is the size of the software queue data
132 * is also 256; however, for the command queue, n_window is only
133 * 32 since we don't need so many commands pending. Since the HW
134 * still uses 256 BDs for DMA though, n_bd stays 256. As a result,
135 * the software buffers (in the variables @meta, @txb in struct
136 * iwl_tx_queue) only have 32 entries, while the HW buffers (@tfds
137 * in the same struct) have 256.
138 * This means that we end up with the following:
139 * HW entries: | 0 | ... | N * 32 | ... | N * 32 + 31 | ... | 255 |
140 * SW entries: | 0 | ... | 31 |
141 * where N is a number between 0 and 7. This means that the SW
142 * data is a window overlayed over the HW queue.
145 int n_bd; /* number of BDs in this queue */
146 int write_ptr; /* 1-st empty entry (index) host_w*/
147 int read_ptr; /* last used entry (index) host_r*/
148 /* use for monitoring and recovering the stuck queue */
149 dma_addr_t dma_addr; /* physical addr for BD's */
150 int n_window; /* safe queue window */
152 int low_mark; /* low watermark, resume queue if free
153 * space more than this */
154 int high_mark; /* high watermark, stop queue if free
155 * space less than this */
158 /* One for each TFD */
161 struct iwl_rxon_context *ctx;
165 * struct iwl_tx_queue - Tx Queue for DMA
166 * @q: generic Rx/Tx queue descriptor
167 * @bd: base of circular buffer of TFDs
168 * @cmd: array of command/TX buffer pointers
169 * @meta: array of meta data for each command/tx buffer
170 * @dma_addr_cmd: physical address of cmd/tx buffer array
171 * @txb: array of per-TFD driver data
172 * @time_stamp: time (in jiffies) of last read_ptr change
173 * @need_update: indicates need to update read/write index
174 * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
176 * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
177 * descriptors) and required locking structures.
179 #define TFD_TX_CMD_SLOTS 256
180 #define TFD_CMD_SLOTS 32
182 struct iwl_tx_queue {
184 struct iwl_tfd *tfds;
185 struct iwl_device_cmd **cmd;
186 struct iwl_cmd_meta *meta;
187 struct iwl_tx_info *txb;
188 unsigned long time_stamp;
195 #define IWL_NUM_SCAN_RATES (2)
198 * One for each channel, holds all channel setup data
199 * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
202 struct iwl_channel_info {
203 struct iwl_eeprom_channel eeprom; /* EEPROM regulatory limit */
204 struct iwl_eeprom_channel ht40_eeprom; /* EEPROM regulatory limit for
207 u8 channel; /* channel number */
208 u8 flags; /* flags copied from EEPROM */
209 s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
210 s8 curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) limit */
211 s8 min_power; /* always 0 */
212 s8 scan_power; /* (dBm) regul. eeprom, direct scans, any rate */
214 u8 group_index; /* 0-4, maps channel to group1/2/3/4/5 */
215 u8 band_index; /* 0-4, maps channel to band1/2/3/4/5 */
216 enum ieee80211_band band;
218 /* HT40 channel info */
219 s8 ht40_max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
220 u8 ht40_flags; /* flags copied from EEPROM */
221 u8 ht40_extension_channel; /* HT_IE_EXT_CHANNEL_* */
224 #define IWL_TX_FIFO_BK 0 /* shared */
225 #define IWL_TX_FIFO_BE 1
226 #define IWL_TX_FIFO_VI 2 /* shared */
227 #define IWL_TX_FIFO_VO 3
228 #define IWL_TX_FIFO_BK_IPAN IWL_TX_FIFO_BK
229 #define IWL_TX_FIFO_BE_IPAN 4
230 #define IWL_TX_FIFO_VI_IPAN IWL_TX_FIFO_VI
231 #define IWL_TX_FIFO_VO_IPAN 5
232 #define IWL_TX_FIFO_UNUSED -1
234 /* Minimum number of queues. MAX_NUM is defined in hw specific files.
235 * Set the minimum to accommodate the 4 standard TX queues, 1 command
236 * queue, 2 (unused) HCCA queues, and 4 HT queues (one for each AC) */
237 #define IWL_MIN_NUM_QUEUES 10
240 * Command queue depends on iPAN support.
242 #define IWL_DEFAULT_CMD_QUEUE_NUM 4
243 #define IWL_IPAN_CMD_QUEUE_NUM 9
246 * This queue number is required for proper operation
247 * because the ucode will stop/start the scheduler as
250 #define IWL_IPAN_MCAST_QUEUE 8
252 #define IEEE80211_DATA_LEN 2304
253 #define IEEE80211_4ADDR_LEN 30
254 #define IEEE80211_HLEN (IEEE80211_4ADDR_LEN)
255 #define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
258 #define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
259 #define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
260 #define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
265 CMD_WANT_SKB = BIT(1),
266 CMD_ON_DEMAND = BIT(2),
269 #define DEF_CMD_PAYLOAD_SIZE 320
272 * struct iwl_device_cmd
274 * For allocation of the command and tx queues, this establishes the overall
275 * size of the largest command we send to uCode, except for commands that
276 * aren't fully copied and use other TFD space.
278 struct iwl_device_cmd {
279 struct iwl_cmd_header hdr; /* uCode API */
285 struct iwl_tx_cmd tx;
286 struct iwl6000_channel_switch_cmd chswitch;
287 u8 payload[DEF_CMD_PAYLOAD_SIZE];
291 #define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_device_cmd))
293 #define IWL_MAX_CMD_TFDS 2
295 enum iwl_hcmd_dataflag {
296 IWL_HCMD_DFL_NOCOPY = BIT(0),
300 * struct iwl_host_cmd - Host command to the uCode
301 * @data: array of chunks that composes the data of the host command
302 * @reply_page: pointer to the page that holds the response to the host command
304 * @flags: can be CMD_* note CMD_WANT_SKB is incompatible withe CMD_ASYNC
305 * @len: array of the lenths of the chunks in data
307 * @id: id of the host command
309 struct iwl_host_cmd {
310 const void *data[IWL_MAX_CMD_TFDS];
311 unsigned long reply_page;
312 void (*callback)(struct iwl_priv *priv,
313 struct iwl_device_cmd *cmd,
314 struct iwl_rx_packet *pkt);
316 u16 len[IWL_MAX_CMD_TFDS];
317 u8 dataflags[IWL_MAX_CMD_TFDS];
321 #define SUP_RATE_11A_MAX_NUM_CHANNELS 8
322 #define SUP_RATE_11B_MAX_NUM_CHANNELS 4
323 #define SUP_RATE_11G_MAX_NUM_CHANNELS 12
326 * struct iwl_rx_queue - Rx queue
327 * @bd: driver's pointer to buffer of receive buffer descriptors (rbd)
328 * @bd_dma: bus address of buffer of receive buffer descriptors (rbd)
329 * @read: Shared index to newest available Rx buffer
330 * @write: Shared index to oldest written Rx packet
331 * @free_count: Number of pre-allocated buffers in rx_free
332 * @rx_free: list of free SKBs for use
333 * @rx_used: List of Rx buffers with no SKB
334 * @need_update: flag to indicate we need to update read/write index
335 * @rb_stts: driver's pointer to receive buffer status
336 * @rb_stts_dma: bus address of receive buffer status
338 * NOTE: rx_free and rx_used are used as a FIFO for iwl_rx_mem_buffers
340 struct iwl_rx_queue {
343 struct iwl_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
344 struct iwl_rx_mem_buffer *queue[RX_QUEUE_SIZE];
349 struct list_head rx_free;
350 struct list_head rx_used;
352 struct iwl_rb_status *rb_stts;
353 dma_addr_t rb_stts_dma;
357 #define IWL_SUPPORTED_RATES_IE_LEN 8
359 #define MAX_TID_COUNT 9
361 #define IWL_INVALID_RATE 0xFF
362 #define IWL_INVALID_VALUE -1
365 * struct iwl_ht_agg -- aggregation status while waiting for block-ack
366 * @txq_id: Tx queue used for Tx attempt
367 * @frame_count: # frames attempted by Tx command
368 * @wait_for_ba: Expect block-ack before next Tx reply
369 * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window
370 * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window
371 * @bitmap1: High order, one bit for each frame pending ACK in Tx window
372 * @rate_n_flags: Rate at which Tx was attempted
374 * If REPLY_TX indicates that aggregation was attempted, driver must wait
375 * for block ack (REPLY_COMPRESSED_BA). This struct stores tx reply info
376 * until block ack arrives.
385 #define IWL_AGG_OFF 0
387 #define IWL_EMPTYING_HW_QUEUE_ADDBA 2
388 #define IWL_EMPTYING_HW_QUEUE_DELBA 3
394 struct iwl_tid_data {
395 u16 seq_number; /* agn only */
397 struct iwl_ht_agg agg;
400 union iwl_ht_rate_supp {
408 #define CFG_HT_RX_AMPDU_FACTOR_8K (0x0)
409 #define CFG_HT_RX_AMPDU_FACTOR_16K (0x1)
410 #define CFG_HT_RX_AMPDU_FACTOR_32K (0x2)
411 #define CFG_HT_RX_AMPDU_FACTOR_64K (0x3)
412 #define CFG_HT_RX_AMPDU_FACTOR_DEF CFG_HT_RX_AMPDU_FACTOR_64K
413 #define CFG_HT_RX_AMPDU_FACTOR_MAX CFG_HT_RX_AMPDU_FACTOR_64K
414 #define CFG_HT_RX_AMPDU_FACTOR_MIN CFG_HT_RX_AMPDU_FACTOR_8K
417 * Maximal MPDU density for TX aggregation
423 #define CFG_HT_MPDU_DENSITY_2USEC (0x4)
424 #define CFG_HT_MPDU_DENSITY_4USEC (0x5)
425 #define CFG_HT_MPDU_DENSITY_8USEC (0x6)
426 #define CFG_HT_MPDU_DENSITY_16USEC (0x7)
427 #define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_4USEC
428 #define CFG_HT_MPDU_DENSITY_MAX CFG_HT_MPDU_DENSITY_16USEC
429 #define CFG_HT_MPDU_DENSITY_MIN (0x1)
431 struct iwl_ht_config {
432 bool single_chain_sufficient;
433 enum ieee80211_smps_mode smps; /* current smps mode */
437 struct iwl_qos_info {
439 struct iwl_qosparam_cmd def_qos_parm;
443 * Structure should be accessed with sta_lock held. When station addition
444 * is in progress (IWL_STA_UCODE_INPROGRESS) it is possible to access only
445 * the commands (iwl_addsta_cmd and iwl_link_quality_cmd) without sta_lock
448 struct iwl_station_entry {
449 struct iwl_addsta_cmd sta;
450 struct iwl_tid_data tid[MAX_TID_COUNT];
452 struct iwl_link_quality_cmd *lq;
455 struct iwl_station_priv_common {
456 struct iwl_rxon_context *ctx;
461 * iwl_station_priv: Driver's private station information
463 * When mac80211 creates a station it reserves some space (hw->sta_data_size)
464 * in the structure for use by driver. This structure is places in that
467 struct iwl_station_priv {
468 struct iwl_station_priv_common common;
469 struct iwl_lq_sta lq_sta;
470 atomic_t pending_frames;
477 * struct iwl_vif_priv - driver's private per-interface information
479 * When mac80211 allocates a virtual interface, it can allocate
480 * space for us to put data into.
482 struct iwl_vif_priv {
483 struct iwl_rxon_context *ctx;
484 u8 ibss_bssid_sta_id;
487 /* one for each uCode image (inst/data, boot/init/runtime) */
489 void *v_addr; /* access by driver */
490 dma_addr_t p_addr; /* access by card's busmaster DMA */
495 struct fw_desc code, data;
498 /* v1/v2 uCode file layout */
499 struct iwl_ucode_header {
500 __le32 ver; /* major/minor/API/serial */
503 __le32 inst_size; /* bytes of runtime code */
504 __le32 data_size; /* bytes of runtime data */
505 __le32 init_size; /* bytes of init code */
506 __le32 init_data_size; /* bytes of init data */
507 __le32 boot_size; /* bytes of bootstrap code */
508 u8 data[0]; /* in same order as sizes */
511 __le32 build; /* build number */
512 __le32 inst_size; /* bytes of runtime code */
513 __le32 data_size; /* bytes of runtime data */
514 __le32 init_size; /* bytes of init code */
515 __le32 init_data_size; /* bytes of init data */
516 __le32 boot_size; /* bytes of bootstrap code */
517 u8 data[0]; /* in same order as sizes */
523 * new TLV uCode file layout
525 * The new TLV file format contains TLVs, that each specify
526 * some piece of data. To facilitate "groups", for example
527 * different instruction image with different capabilities,
528 * bundled with the same init image, an alternative mechanism
530 * When the alternative field is 0, that means that the item
531 * is always valid. When it is non-zero, then it is only
532 * valid in conjunction with items of the same alternative,
533 * in which case the driver (user) selects one alternative
537 enum iwl_ucode_tlv_type {
538 IWL_UCODE_TLV_INVALID = 0, /* unused */
539 IWL_UCODE_TLV_INST = 1,
540 IWL_UCODE_TLV_DATA = 2,
541 IWL_UCODE_TLV_INIT = 3,
542 IWL_UCODE_TLV_INIT_DATA = 4,
543 IWL_UCODE_TLV_BOOT = 5,
544 IWL_UCODE_TLV_PROBE_MAX_LEN = 6, /* a u32 value */
545 IWL_UCODE_TLV_PAN = 7,
546 IWL_UCODE_TLV_RUNT_EVTLOG_PTR = 8,
547 IWL_UCODE_TLV_RUNT_EVTLOG_SIZE = 9,
548 IWL_UCODE_TLV_RUNT_ERRLOG_PTR = 10,
549 IWL_UCODE_TLV_INIT_EVTLOG_PTR = 11,
550 IWL_UCODE_TLV_INIT_EVTLOG_SIZE = 12,
551 IWL_UCODE_TLV_INIT_ERRLOG_PTR = 13,
552 IWL_UCODE_TLV_ENHANCE_SENS_TBL = 14,
553 IWL_UCODE_TLV_PHY_CALIBRATION_SIZE = 15,
554 IWL_UCODE_TLV_WOWLAN_INST = 16,
555 IWL_UCODE_TLV_WOWLAN_DATA = 17,
556 IWL_UCODE_TLV_FLAGS = 18,
560 * enum iwl_ucode_tlv_flag - ucode API flags
561 * @IWL_UCODE_TLV_FLAGS_PAN: This is PAN capable microcode; this previously
562 * was a separate TLV but moved here to save space.
563 * @IWL_UCODE_TLV_FLAGS_NEWSCAN: new uCode scan behaviour on hidden SSID,
564 * treats good CRC threshold as a boolean
565 * @IWL_UCODE_TLV_FLAGS_MFP: This uCode image supports MFP (802.11w).
567 enum iwl_ucode_tlv_flag {
568 IWL_UCODE_TLV_FLAGS_PAN = BIT(0),
569 IWL_UCODE_TLV_FLAGS_NEWSCAN = BIT(1),
570 IWL_UCODE_TLV_FLAGS_MFP = BIT(2),
573 struct iwl_ucode_tlv {
574 __le16 type; /* see above */
575 __le16 alternative; /* see comment */
576 __le32 length; /* not including type/length fields */
580 #define IWL_TLV_UCODE_MAGIC 0x0a4c5749
582 struct iwl_tlv_ucode_header {
584 * The TLV style ucode header is distinguished from
585 * the v1/v2 style header by first four bytes being
586 * zero, as such is an invalid combination of
587 * major/minor/API/serial versions.
591 u8 human_readable[64];
592 __le32 ver; /* major/minor/API/serial */
594 __le64 alternatives; /* bitmask of valid alternatives */
596 * The data contained herein has a TLV layout,
597 * see above for the TLV header and types.
598 * Note that each TLV is padded to a length
599 * that is a multiple of 4 for alignment.
604 struct iwl_sensitivity_ranges {
611 u16 auto_corr_min_ofdm;
612 u16 auto_corr_min_ofdm_mrc;
613 u16 auto_corr_min_ofdm_x1;
614 u16 auto_corr_min_ofdm_mrc_x1;
616 u16 auto_corr_max_ofdm;
617 u16 auto_corr_max_ofdm_mrc;
618 u16 auto_corr_max_ofdm_x1;
619 u16 auto_corr_max_ofdm_mrc_x1;
621 u16 auto_corr_max_cck;
622 u16 auto_corr_max_cck_mrc;
623 u16 auto_corr_min_cck;
624 u16 auto_corr_min_cck_mrc;
626 u16 barker_corr_th_min;
627 u16 barker_corr_th_min_mrc;
632 #define KELVIN_TO_CELSIUS(x) ((x)-273)
633 #define CELSIUS_TO_KELVIN(x) ((x)+273)
637 * struct iwl_hw_params
638 * @max_txq_num: Max # Tx queues supported
639 * @scd_bc_tbls_size: size of scheduler byte count tables
640 * @tfd_size: TFD size
641 * @tx/rx_chains_num: Number of TX/RX chains
642 * @valid_tx/rx_ant: usable antennas
643 * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
644 * @max_rxq_log: Log-base-2 of max_rxq_size
645 * @rx_page_order: Rx buffer page order
646 * @rx_wrt_ptr_reg: FH{39}_RSCSR_CHNL0_WPTR
648 * @ht40_channel: is 40MHz width possible in band 2.4
649 * BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ)
650 * @sw_crypto: 0 for hw, 1 for sw
651 * @max_xxx_size: for ucode uses
652 * @ct_kill_threshold: temperature threshold
653 * @beacon_time_tsf_bits: number of valid tsf bits for beacon time
654 * @calib_init_cfg: setup initial calibrations for the hw
655 * @calib_rt_cfg: setup runtime calibrations for the hw
656 * @struct iwl_sensitivity_ranges: range of sensitivity values
658 struct iwl_hw_params {
660 u16 scd_bc_tbls_size;
671 u8 max_beacon_itrvl; /* in 1024 ms */
674 u32 ct_kill_threshold; /* value in hw-dependent units */
675 u32 ct_kill_exit_threshold; /* value in hw-dependent units */
676 /* for 1000, 6000 series and up */
677 u16 beacon_time_tsf_bits;
680 const struct iwl_sensitivity_ranges *sens;
684 /******************************************************************************
686 * Functions implemented in core module which are forward declared here
687 * for use by iwl-[4-5].c
689 * NOTE: The implementation of these functions are not hardware specific
690 * which is why they are in the core module files.
692 * Naming convention --
693 * iwl_ <-- Is part of iwlwifi
694 * iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
696 ****************************************************************************/
697 extern void iwl_update_chain_flags(struct iwl_priv *priv);
698 extern const u8 iwl_bcast_addr[ETH_ALEN];
699 extern int iwl_queue_space(const struct iwl_queue *q);
700 static inline int iwl_queue_used(const struct iwl_queue *q, int i)
702 return q->write_ptr >= q->read_ptr ?
703 (i >= q->read_ptr && i < q->write_ptr) :
704 !(i < q->read_ptr && i >= q->write_ptr);
708 static inline u8 get_cmd_index(struct iwl_queue *q, u32 index)
710 return index & (q->n_window - 1);
720 #define IWL_OPERATION_MODE_AUTO 0
721 #define IWL_OPERATION_MODE_HT_ONLY 1
722 #define IWL_OPERATION_MODE_MIXED 2
723 #define IWL_OPERATION_MODE_20MHZ 3
725 #define IWL_TX_CRC_SIZE 4
726 #define IWL_TX_DELIMITER_SIZE 4
728 #define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
730 /* Sensitivity and chain noise calibration */
731 #define INITIALIZATION_VALUE 0xFFFF
732 #define IWL_CAL_NUM_BEACONS 16
733 #define MAXIMUM_ALLOWED_PATHLOSS 15
735 #define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
737 #define MAX_FA_OFDM 50
738 #define MIN_FA_OFDM 5
739 #define MAX_FA_CCK 50
742 #define AUTO_CORR_STEP_OFDM 1
744 #define AUTO_CORR_STEP_CCK 3
745 #define AUTO_CORR_MAX_TH_CCK 160
748 #define NRG_STEP_CCK 2
750 #define MAX_NUMBER_CCK_NO_FA 100
752 #define AUTO_CORR_CCK_MIN_VAL_DEF (125)
757 #define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
758 #define ALL_BAND_FILTER 0xFF00
759 #define IN_BAND_FILTER 0xFF
760 #define MIN_AVERAGE_NOISE_MAX_VALUE 0xFFFFFFFF
762 #define NRG_NUM_PREV_STAT_L 20
763 #define NUM_RX_CHAINS 3
765 enum iwlagn_false_alarm_state {
768 IWL_FA_GOOD_RANGE = 2,
771 enum iwlagn_chain_noise_state {
772 IWL_CHAIN_NOISE_ALIVE = 0, /* must be 0 */
773 IWL_CHAIN_NOISE_ACCUMULATE,
774 IWL_CHAIN_NOISE_CALIBRATED,
775 IWL_CHAIN_NOISE_DONE,
781 * defines the order in which results of initial calibrations
782 * should be sent to the runtime uCode
789 IWL_CALIB_TX_IQ_PERD,
791 IWL_CALIB_TEMP_OFFSET,
795 /* Opaque calibration results */
796 struct iwl_calib_result {
801 /* Sensitivity calib data */
802 struct iwl_sensitivity_data {
804 u32 auto_corr_ofdm_mrc;
805 u32 auto_corr_ofdm_x1;
806 u32 auto_corr_ofdm_mrc_x1;
808 u32 auto_corr_cck_mrc;
810 u32 last_bad_plcp_cnt_ofdm;
811 u32 last_fa_cnt_ofdm;
812 u32 last_bad_plcp_cnt_cck;
818 u8 nrg_silence_rssi[NRG_NUM_PREV_STAT_L];
823 s32 nrg_auto_corr_silence_diff;
824 u32 num_in_cck_no_fa;
827 u16 barker_corr_th_min;
828 u16 barker_corr_th_min_mrc;
832 /* Chain noise (differential Rx gain) calib data */
833 struct iwl_chain_noise_data {
842 u8 disconn_array[NUM_RX_CHAINS];
843 u8 delta_gain_code[NUM_RX_CHAINS];
848 #define EEPROM_SEM_TIMEOUT 10 /* milliseconds */
849 #define EEPROM_SEM_RETRY_LIMIT 1000 /* number of attempts (not time) */
851 #define IWL_TRAFFIC_ENTRIES (256)
852 #define IWL_TRAFFIC_ENTRY_SIZE (64)
855 MEASUREMENT_READY = (1 << 0),
856 MEASUREMENT_ACTIVE = (1 << 1),
860 NVM_DEVICE_TYPE_EEPROM = 0,
865 * Two types of OTP memory access modes
866 * IWL_OTP_ACCESS_ABSOLUTE - absolute address mode,
867 * based on physical memory addressing
868 * IWL_OTP_ACCESS_RELATIVE - relative address mode,
869 * based on logical memory addressing
871 enum iwl_access_mode {
872 IWL_OTP_ACCESS_ABSOLUTE,
873 IWL_OTP_ACCESS_RELATIVE,
877 * enum iwl_pa_type - Power Amplifier type
878 * @IWL_PA_SYSTEM: based on uCode configuration
879 * @IWL_PA_INTERNAL: use Internal only
886 /* interrupt statistics */
887 struct isr_statistics {
897 u32 rx_handlers[REPLY_MAX];
902 /* reply_tx_statistics (for _agn devices) */
903 struct reply_tx_error_statistics {
909 u32 int_crossed_retry;
925 u32 sta_color_mismatch;
929 /* reply_agg_tx_statistics (for _agn devices) */
930 struct reply_agg_tx_error_statistics {
937 u32 last_sent_bt_kill;
946 /* management statistics */
947 enum iwl_mgmt_stats {
948 MANAGEMENT_ASSOC_REQ = 0,
949 MANAGEMENT_ASSOC_RESP,
950 MANAGEMENT_REASSOC_REQ,
951 MANAGEMENT_REASSOC_RESP,
952 MANAGEMENT_PROBE_REQ,
953 MANAGEMENT_PROBE_RESP,
962 /* control statistics */
963 enum iwl_ctrl_stats {
964 CONTROL_BACK_REQ = 0,
975 struct traffic_stats {
976 #ifdef CONFIG_IWLWIFI_DEBUGFS
977 u32 mgmt[MANAGEMENT_MAX];
978 u32 ctrl[CONTROL_MAX];
985 * schedule the timer to wake up every UCODE_TRACE_PERIOD milliseconds
986 * to perform continuous uCode event logging operation if enabled
988 #define UCODE_TRACE_PERIOD (100)
991 * iwl_event_log: current uCode event log position
993 * @ucode_trace: enable/disable ucode continuous trace timer
994 * @num_wraps: how many times the event buffer wraps
995 * @next_entry: the entry just before the next one that uCode would fill
996 * @non_wraps_count: counter for no wrap detected when dump ucode events
997 * @wraps_once_count: counter for wrap once detected when dump ucode events
998 * @wraps_more_count: counter for wrap more than once detected
999 * when dump ucode events
1001 struct iwl_event_log {
1005 int non_wraps_count;
1006 int wraps_once_count;
1007 int wraps_more_count;
1011 * host interrupt timeout value
1012 * used with setting interrupt coalescing timer
1013 * the CSR_INT_COALESCING is an 8 bit register in 32-usec unit
1015 * default interrupt coalescing timer is 64 x 32 = 2048 usecs
1016 * default interrupt coalescing calibration timer is 16 x 32 = 512 usecs
1018 #define IWL_HOST_INT_TIMEOUT_MAX (0xFF)
1019 #define IWL_HOST_INT_TIMEOUT_DEF (0x40)
1020 #define IWL_HOST_INT_TIMEOUT_MIN (0x0)
1021 #define IWL_HOST_INT_CALIB_TIMEOUT_MAX (0xFF)
1022 #define IWL_HOST_INT_CALIB_TIMEOUT_DEF (0x10)
1023 #define IWL_HOST_INT_CALIB_TIMEOUT_MIN (0x0)
1026 * This is the threshold value of plcp error rate per 100mSecs. It is
1027 * used to set and check for the validity of plcp_delta.
1029 #define IWL_MAX_PLCP_ERR_THRESHOLD_MIN (1)
1030 #define IWL_MAX_PLCP_ERR_THRESHOLD_DEF (50)
1031 #define IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF (100)
1032 #define IWL_MAX_PLCP_ERR_EXT_LONG_THRESHOLD_DEF (200)
1033 #define IWL_MAX_PLCP_ERR_THRESHOLD_MAX (255)
1034 #define IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE (0)
1036 #define IWL_DELAY_NEXT_FORCE_RF_RESET (HZ*3)
1037 #define IWL_DELAY_NEXT_FORCE_FW_RELOAD (HZ*5)
1039 /* TX queue watchdog timeouts in mSecs */
1040 #define IWL_DEF_WD_TIMEOUT (2000)
1041 #define IWL_LONG_WD_TIMEOUT (10000)
1042 #define IWL_MAX_WD_TIMEOUT (120000)
1044 /* BT Antenna Coupling Threshold (dB) */
1045 #define IWL_BT_ANTENNA_COUPLING_THRESHOLD (35)
1047 /* Firmware reload counter and Timestamp */
1048 #define IWL_MIN_RELOAD_DURATION 1000 /* 1000 ms */
1049 #define IWL_MAX_CONTINUE_RELOAD_CNT 4
1055 IWL_MAX_FORCE_RESET,
1058 struct iwl_force_reset {
1059 int reset_request_count;
1060 int reset_success_count;
1061 int reset_reject_count;
1062 unsigned long reset_duration;
1063 unsigned long last_force_reset_jiffies;
1066 /* extend beacon time format bit shifting */
1069 * bits 31:22 - extended
1070 * bits 21:0 - interval
1072 #define IWLAGN_EXT_BEACON_TIME_POS 22
1075 * struct iwl_notification_wait - notification wait entry
1076 * @list: list head for global list
1077 * @fn: function called with the notification
1080 * This structure is not used directly, to wait for a
1081 * notification declare it on the stack, and call
1082 * iwlagn_init_notification_wait() with appropriate
1083 * parameters. Then do whatever will cause the ucode
1084 * to notify the driver, and to wait for that then
1085 * call iwlagn_wait_notification().
1087 * Each notification is one-shot. If at some point we
1088 * need to support multi-shot notifications (which
1089 * can't be allocated on the stack) we need to modify
1090 * the code for them.
1092 struct iwl_notification_wait {
1093 struct list_head list;
1095 void (*fn)(struct iwl_priv *priv, struct iwl_rx_packet *pkt,
1100 bool triggered, aborted;
1103 enum iwl_rxon_context_id {
1110 struct iwl_rxon_context {
1111 struct ieee80211_vif *vif;
1113 const u8 *ac_to_fifo;
1114 const u8 *ac_to_queue;
1118 * We could use the vif to indicate active, but we
1119 * also need it to be active during disabling when
1120 * we already removed the vif for type setting.
1122 bool always_active, is_active;
1124 bool ht_need_multiple_chains;
1126 enum iwl_rxon_context_id ctxid;
1128 u32 interface_modes, exclusive_interface_modes;
1129 u8 unused_devtype, ap_devtype, ibss_devtype, station_devtype;
1132 * We declare this const so it can only be
1133 * changed via explicit cast within the
1134 * routines that actually update the physical
1137 const struct iwl_rxon_cmd active;
1138 struct iwl_rxon_cmd staging;
1140 struct iwl_rxon_time_cmd timing;
1142 struct iwl_qos_info qos_data;
1144 u8 bcast_sta_id, ap_sta_id;
1146 u8 rxon_cmd, rxon_assoc_cmd, rxon_timing_cmd;
1150 struct iwl_wep_key wep_keys[WEP_KEYS_MAX];
1151 u8 key_mapping_keys;
1153 __le32 station_flags;
1156 bool non_gf_sta_present;
1158 bool enabled, is_40mhz;
1159 u8 extension_chan_offset;
1162 bool last_tx_rejected;
1165 enum iwl_scan_type {
1167 IWL_SCAN_RADIO_RESET,
1171 enum iwlagn_ucode_type {
1178 #ifdef CONFIG_IWLWIFI_DEVICE_SVTOOL
1179 struct iwl_testmode_trace {
1185 dma_addr_t dma_addr;
1190 /* uCode ownership */
1191 #define IWL_OWNERSHIP_DRIVER 0
1192 #define IWL_OWNERSHIP_TM 1
1196 /* ieee device used by generic ieee processing code */
1197 struct ieee80211_hw *hw;
1198 struct ieee80211_channel *ieee_channels;
1199 struct ieee80211_rate *ieee_rates;
1200 struct iwl_cfg *cfg;
1202 enum ieee80211_band band;
1204 void (*pre_rx_handler)(struct iwl_priv *priv,
1205 struct iwl_rx_mem_buffer *rxb);
1206 void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv,
1207 struct iwl_rx_mem_buffer *rxb);
1209 struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
1211 /* spectrum measurement report caching */
1212 struct iwl_spectrum_notification measure_report;
1213 u8 measurement_status;
1215 /* ucode beacon time */
1216 u32 ucode_beacon_time;
1217 int missed_beacon_threshold;
1219 /* track IBSS manager (last beacon) status */
1222 /* jiffies when last recovery from statistics was performed */
1223 unsigned long rx_statistics_jiffies;
1226 struct iwl_force_reset force_reset[IWL_MAX_FORCE_RESET];
1228 /* firmware reload counter and timestamp */
1229 unsigned long reload_jiffies;
1232 /* we allocate array of iwl_channel_info for NIC's valid channels.
1233 * Access via channel # using indirect index array */
1234 struct iwl_channel_info *channel_info; /* channel info array */
1235 u8 channel_count; /* # of channels */
1237 /* thermal calibration */
1238 s32 temperature; /* degrees Kelvin */
1239 s32 last_temperature;
1241 /* init calibration results */
1242 struct iwl_calib_result calib_results[IWL_CALIB_MAX];
1244 /* Scan related variables */
1245 unsigned long scan_start;
1246 unsigned long scan_start_tsf;
1248 enum ieee80211_band scan_band;
1249 struct cfg80211_scan_request *scan_request;
1250 struct ieee80211_vif *scan_vif;
1251 enum iwl_scan_type scan_type;
1252 u8 scan_tx_ant[IEEE80211_NUM_BANDS];
1256 spinlock_t lock; /* protect general shared data */
1257 spinlock_t hcmd_lock; /* protect hcmd */
1258 spinlock_t reg_lock; /* protect hw register access */
1261 struct iwl_bus *bus; /* bus specific data */
1262 struct iwl_trans trans;
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
1283 /* uCode owner: default: IWL_OWNERSHIP_DRIVER */
1286 struct fw_img ucode_rt;
1287 struct fw_img ucode_init;
1288 struct fw_img ucode_wowlan;
1290 enum iwlagn_ucode_type ucode_type;
1291 u8 ucode_write_complete; /* the image write is complete */
1292 char firmware_name[25];
1294 struct iwl_rxon_context contexts[NUM_IWL_RXON_CTX];
1296 __le16 switch_channel;
1299 u32 error_event_table;
1300 u32 log_event_table;
1306 struct iwl_sensitivity_data sensitivity_data;
1307 struct iwl_chain_noise_data chain_noise_data;
1308 bool enhance_sensitivity_table;
1309 __le16 sensitivity_tbl[HD_TABLE_SIZE];
1310 __le16 enhance_sensitivity_tbl[ENHANCE_HD_TABLE_ENTRIES];
1312 struct iwl_ht_config current_ht_config;
1314 /* Rate scaling data */
1317 wait_queue_head_t wait_command_queue;
1319 int activity_timer_active;
1321 /* Rx and Tx DMA processing queues */
1322 struct iwl_rx_queue rxq;
1323 struct iwl_tx_queue *txq;
1324 unsigned long txq_ctx_active_msk;
1325 struct iwl_dma_ptr kw; /* keep warm address */
1326 struct iwl_dma_ptr scd_bc_tbls;
1328 u32 scd_base_addr; /* scheduler sram base address */
1330 unsigned long status;
1332 /* counts mgmt, ctl, and data packets */
1333 struct traffic_stats tx_stats;
1334 struct traffic_stats rx_stats;
1336 /* counts interrupts */
1337 struct isr_statistics isr_stats;
1339 struct iwl_power_mgr power_data;
1340 struct iwl_tt_mgmt thermal_throttle;
1342 /* station table variables */
1344 /* Note: if lock and sta_lock are needed, lock must be acquired first */
1345 spinlock_t sta_lock;
1347 struct iwl_station_entry stations[IWLAGN_STATION_COUNT];
1348 unsigned long ucode_key_table;
1350 /* queue refcounts */
1351 #define IWL_MAX_HW_QUEUES 32
1352 unsigned long queue_stopped[BITS_TO_LONGS(IWL_MAX_HW_QUEUES)];
1354 atomic_t queue_stop_count[4];
1356 /* Indication if ieee80211_ops->open has been called */
1359 u8 mac80211_registered;
1363 /* eeprom -- this is in the card's little endian byte order */
1365 int nvm_device_type;
1366 struct iwl_eeprom_calib_info *calib_info;
1368 enum nl80211_iftype iw_mode;
1370 /* Last Rx'd beacon timestamp */
1375 struct statistics_general_common common;
1376 struct statistics_rx_non_phy rx_non_phy;
1377 struct statistics_rx_phy rx_ofdm;
1378 struct statistics_rx_ht_phy rx_ofdm_ht;
1379 struct statistics_rx_phy rx_cck;
1380 struct statistics_tx tx;
1381 #ifdef CONFIG_IWLWIFI_DEBUGFS
1382 struct statistics_bt_activity bt_activity;
1383 __le32 num_bt_kills, accum_num_bt_kills;
1386 #ifdef CONFIG_IWLWIFI_DEBUGFS
1388 struct statistics_general_common common;
1389 struct statistics_rx_non_phy rx_non_phy;
1390 struct statistics_rx_phy rx_ofdm;
1391 struct statistics_rx_ht_phy rx_ofdm_ht;
1392 struct statistics_rx_phy rx_cck;
1393 struct statistics_tx tx;
1394 struct statistics_bt_activity bt_activity;
1395 } accum_stats, delta_stats, max_delta_stats;
1401 dma_addr_t ict_tbl_dma;
1402 dma_addr_t aligned_ict_tbl_dma;
1407 * reporting the number of tids has AGG on. 0 means
1412 struct iwl_rx_phy_res last_phy_res;
1413 bool last_phy_res_valid;
1415 struct completion firmware_loading_complete;
1417 u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr;
1418 u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr;
1421 * chain noise reset and gain commands are the
1422 * two extra calibration commands follows the standard
1423 * phy calibration commands
1425 u8 phy_calib_chain_noise_reset_cmd;
1426 u8 phy_calib_chain_noise_gain_cmd;
1428 /* counts reply_tx error */
1429 struct reply_tx_error_statistics reply_tx_stats;
1430 struct reply_agg_tx_error_statistics reply_agg_tx_stats;
1431 /* notification wait support */
1432 struct list_head notif_waits;
1433 spinlock_t notif_wait_lock;
1434 wait_queue_head_t notif_waitq;
1436 /* remain-on-channel offload support */
1437 struct ieee80211_channel *hw_roc_channel;
1438 struct delayed_work hw_roc_work;
1439 enum nl80211_channel_type hw_roc_chantype;
1440 int hw_roc_duration;
1443 struct sk_buff *offchan_tx_skb;
1444 int offchan_tx_timeout;
1445 struct ieee80211_channel *offchan_tx_chan;
1450 u8 bt_traffic_load, last_bt_traffic_load;
1451 bool bt_ch_announce;
1452 bool bt_full_concurrent;
1453 bool bt_ant_couple_ok;
1454 __le32 kill_ack_mask;
1455 __le32 kill_cts_mask;
1459 u16 dynamic_frag_thresh;
1460 u8 bt_ci_compliance;
1461 struct work_struct bt_traffic_change_work;
1462 bool bt_enable_pspoll;
1463 struct iwl_rxon_context *cur_rssi_ctx;
1466 struct iwl_hw_params hw_params;
1470 struct workqueue_struct *workqueue;
1472 struct work_struct restart;
1473 struct work_struct scan_completed;
1474 struct work_struct rx_replenish;
1475 struct work_struct abort_scan;
1477 struct work_struct beacon_update;
1478 struct iwl_rxon_context *beacon_ctx;
1479 struct sk_buff *beacon_skb;
1482 struct work_struct tt_work;
1483 struct work_struct ct_enter;
1484 struct work_struct ct_exit;
1485 struct work_struct start_internal_scan;
1486 struct work_struct tx_flush;
1487 struct work_struct bt_full_concurrency;
1488 struct work_struct bt_runtime_config;
1490 struct tasklet_struct irq_tasklet;
1492 struct delayed_work scan_check;
1495 s8 tx_power_user_lmt;
1496 s8 tx_power_device_lmt;
1497 s8 tx_power_lmt_in_half_dbm; /* max tx power in half-dBm format */
1501 #ifdef CONFIG_IWLWIFI_DEBUG
1502 /* debugging info */
1503 u32 debug_level; /* per device debugging will override global
1504 iwl_debug_level if set */
1505 #endif /* CONFIG_IWLWIFI_DEBUG */
1506 #ifdef CONFIG_IWLWIFI_DEBUGFS
1512 struct dentry *debugfs_dir;
1513 u32 dbgfs_sram_offset, dbgfs_sram_len;
1516 #endif /* CONFIG_IWLWIFI_DEBUGFS */
1518 struct work_struct txpower_work;
1519 u32 disable_sens_cal;
1520 u32 disable_chain_noise_cal;
1521 struct work_struct run_time_calib_work;
1522 struct timer_list statistics_periodic;
1523 struct timer_list ucode_trace;
1524 struct timer_list watchdog;
1526 struct iwl_event_log event_log;
1528 struct led_classdev led;
1529 unsigned long blink_on, blink_off;
1530 bool led_registered;
1531 #ifdef CONFIG_IWLWIFI_DEVICE_SVTOOL
1532 struct iwl_testmode_trace testmode_trace;
1536 /* WoWLAN GTK rekey data */
1537 u8 kck[NL80211_KCK_LEN], kek[NL80211_KEK_LEN];
1539 __le16 last_seq_ctl;
1540 bool have_rekey_data;
1543 static inline void iwl_txq_ctx_activate(struct iwl_priv *priv, int txq_id)
1545 set_bit(txq_id, &priv->txq_ctx_active_msk);
1548 static inline void iwl_txq_ctx_deactivate(struct iwl_priv *priv, int txq_id)
1550 clear_bit(txq_id, &priv->txq_ctx_active_msk);
1553 #ifdef CONFIG_IWLWIFI_DEBUG
1555 * iwl_get_debug_level: Return active debug level for device
1557 * Using sysfs it is possible to set per device debug level. This debug
1558 * level will be used if set, otherwise the global debug level which can be
1559 * set via module parameter is used.
1561 static inline u32 iwl_get_debug_level(struct iwl_priv *priv)
1563 if (priv->debug_level)
1564 return priv->debug_level;
1566 return iwl_debug_level;
1569 static inline u32 iwl_get_debug_level(struct iwl_priv *priv)
1571 return iwl_debug_level;
1576 static inline struct ieee80211_hdr *iwl_tx_queue_get_hdr(struct iwl_priv *priv,
1577 int txq_id, int idx)
1579 if (priv->txq[txq_id].txb[idx].skb)
1580 return (struct ieee80211_hdr *)priv->txq[txq_id].
1585 static inline struct iwl_rxon_context *
1586 iwl_rxon_ctx_from_vif(struct ieee80211_vif *vif)
1588 struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
1590 return vif_priv->ctx;
1593 #define for_each_context(priv, ctx) \
1594 for (ctx = &priv->contexts[IWL_RXON_CTX_BSS]; \
1595 ctx < &priv->contexts[NUM_IWL_RXON_CTX]; ctx++) \
1596 if (priv->valid_contexts & BIT(ctx->ctxid))
1598 static inline int iwl_is_associated_ctx(struct iwl_rxon_context *ctx)
1600 return (ctx->active.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
1603 static inline int iwl_is_associated(struct iwl_priv *priv,
1604 enum iwl_rxon_context_id ctxid)
1606 return iwl_is_associated_ctx(&priv->contexts[ctxid]);
1609 static inline int iwl_is_any_associated(struct iwl_priv *priv)
1611 struct iwl_rxon_context *ctx;
1612 for_each_context(priv, ctx)
1613 if (iwl_is_associated_ctx(ctx))
1618 static inline int is_channel_valid(const struct iwl_channel_info *ch_info)
1620 if (ch_info == NULL)
1622 return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
1625 static inline int is_channel_radar(const struct iwl_channel_info *ch_info)
1627 return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
1630 static inline u8 is_channel_a_band(const struct iwl_channel_info *ch_info)
1632 return ch_info->band == IEEE80211_BAND_5GHZ;
1635 static inline u8 is_channel_bg_band(const struct iwl_channel_info *ch_info)
1637 return ch_info->band == IEEE80211_BAND_2GHZ;
1640 static inline int is_channel_passive(const struct iwl_channel_info *ch)
1642 return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
1645 static inline int is_channel_ibss(const struct iwl_channel_info *ch)
1647 return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
1650 static inline void __iwl_free_pages(struct iwl_priv *priv, struct page *page)
1652 __free_pages(page, priv->hw_params.rx_page_order);
1655 static inline void iwl_free_pages(struct iwl_priv *priv, unsigned long page)
1657 free_pages(page, priv->hw_params.rx_page_order);
1659 #endif /* __iwl_dev_h__ */