1 /******************************************************************************
3 * Copyright(c) 2003 - 2010 Intel Corporation. All rights reserved.
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of version 2 of the GNU General Public License as
7 * published by the Free Software Foundation.
9 * This program is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
14 * You should have received a copy of the GNU General Public License along with
15 * this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
18 * The full GNU General Public License is included in this distribution in the
19 * file called LICENSE.
21 * Contact Information:
22 * Intel Linux Wireless <ilw@linux.intel.com>
23 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
25 *****************************************************************************/
27 * Please use this file (iwl-dev.h) for driver implementation definitions.
28 * Please use iwl-commands.h for uCode API definitions.
29 * Please use iwl-4965-hw.h for hardware-related definitions.
35 #include <linux/pci.h> /* for struct pci_device_id */
36 #include <linux/kernel.h>
37 #include <net/ieee80211_radiotap.h>
39 #include "iwl-eeprom.h"
43 #include "iwl-debug.h"
44 #include "iwl-4965-hw.h"
45 #include "iwl-3945-hw.h"
46 #include "iwl-agn-hw.h"
48 #include "iwl-power.h"
49 #include "iwl-agn-rs.h"
50 #include "iwl-agn-tt.h"
54 /* CT-KILL constants */
55 #define CT_KILL_THRESHOLD_LEGACY 110 /* in Celsius */
56 #define CT_KILL_THRESHOLD 114 /* in Celsius */
57 #define CT_KILL_EXIT_THRESHOLD 95 /* in Celsius */
59 /* Default noise level to report when noise measurement is not available.
60 * This may be because we're:
61 * 1) Not associated (4965, no beacon statistics being sent to driver)
62 * 2) Scanning (noise measurement does not apply to associated channel)
63 * 3) Receiving CCK (3945 delivers noise info only for OFDM frames)
64 * Use default noise value of -127 ... this is below the range of measurable
65 * Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
66 * Also, -127 works better than 0 when averaging frames with/without
67 * noise info (e.g. averaging might be done in app); measured dBm values are
68 * always negative ... using a negative value as the default keeps all
69 * averages within an s8's (used in some apps) range of negative values. */
70 #define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
73 * RTS threshold here is total size [2347] minus 4 FCS bytes
75 * a value of 0 means RTS on all data/management packets
76 * a value > max MSDU size means no RTS
77 * else RTS for data/management frames where MPDU is larger
80 #define DEFAULT_RTS_THRESHOLD 2347U
81 #define MIN_RTS_THRESHOLD 0U
82 #define MAX_RTS_THRESHOLD 2347U
83 #define MAX_MSDU_SIZE 2304U
84 #define MAX_MPDU_SIZE 2346U
85 #define DEFAULT_BEACON_INTERVAL 100U
86 #define DEFAULT_SHORT_RETRY_LIMIT 7U
87 #define DEFAULT_LONG_RETRY_LIMIT 4U
89 struct iwl_rx_mem_buffer {
92 struct list_head list;
95 #define rxb_addr(r) page_address(r->page)
98 struct iwl_device_cmd;
100 struct iwl_cmd_meta {
101 /* only for SYNC commands, iff the reply skb is wanted */
102 struct iwl_host_cmd *source;
104 * only for ASYNC commands
105 * (which is somewhat stupid -- look at iwl-sta.c for instance
106 * which duplicates a bunch of code because the callback isn't
107 * invoked for SYNC commands, if it were and its result passed
108 * through it would be simpler...)
110 void (*callback)(struct iwl_priv *priv,
111 struct iwl_device_cmd *cmd,
112 struct iwl_rx_packet *pkt);
114 /* The CMD_SIZE_HUGE flag bit indicates that the command
115 * structure is stored at the end of the shared queue memory. */
118 DEFINE_DMA_UNMAP_ADDR(mapping);
119 DEFINE_DMA_UNMAP_LEN(len);
123 * Generic queue structure
125 * Contains common data for Rx and Tx queues
128 int n_bd; /* number of BDs in this queue */
129 int write_ptr; /* 1-st empty entry (index) host_w*/
130 int read_ptr; /* last used entry (index) host_r*/
131 /* use for monitoring and recovering the stuck queue */
132 int last_read_ptr; /* storing the last read_ptr */
133 /* number of time read_ptr and last_read_ptr are the same */
134 u8 repeat_same_read_ptr;
135 dma_addr_t dma_addr; /* physical addr for BD's */
136 int n_window; /* safe queue window */
138 int low_mark; /* low watermark, resume queue if free
139 * space more than this */
140 int high_mark; /* high watermark, stop queue if free
141 * space less than this */
144 /* One for each TFD */
147 struct iwl_rxon_context *ctx;
151 * struct iwl_tx_queue - Tx Queue for DMA
152 * @q: generic Rx/Tx queue descriptor
153 * @bd: base of circular buffer of TFDs
154 * @cmd: array of command/TX buffer pointers
155 * @meta: array of meta data for each command/tx buffer
156 * @dma_addr_cmd: physical address of cmd/tx buffer array
157 * @txb: array of per-TFD driver data
158 * @need_update: indicates need to update read/write index
159 * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
161 * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
162 * descriptors) and required locking structures.
164 #define TFD_TX_CMD_SLOTS 256
165 #define TFD_CMD_SLOTS 32
167 struct iwl_tx_queue {
170 struct iwl_device_cmd **cmd;
171 struct iwl_cmd_meta *meta;
172 struct iwl_tx_info *txb;
179 #define IWL_NUM_SCAN_RATES (2)
181 struct iwl4965_channel_tgd_info {
186 struct iwl4965_channel_tgh_info {
190 #define IWL4965_MAX_RATE (33)
192 struct iwl3945_clip_group {
193 /* maximum power level to prevent clipping for each rate, derived by
194 * us from this band's saturation power in EEPROM */
195 const s8 clip_powers[IWL_MAX_RATES];
198 /* current Tx power values to use, one for each rate for each channel.
199 * requested power is limited by:
200 * -- regulatory EEPROM limits for this channel
201 * -- hardware capabilities (clip-powers)
202 * -- spectrum management
203 * -- user preference (e.g. iwconfig)
204 * when requested power is set, base power index must also be set. */
205 struct iwl3945_channel_power_info {
206 struct iwl3945_tx_power tpc; /* actual radio and DSP gain settings */
207 s8 power_table_index; /* actual (compenst'd) index into gain table */
208 s8 base_power_index; /* gain index for power at factory temp. */
209 s8 requested_power; /* power (dBm) requested for this chnl/rate */
212 /* current scan Tx power values to use, one for each scan rate for each
214 struct iwl3945_scan_power_info {
215 struct iwl3945_tx_power tpc; /* actual radio and DSP gain settings */
216 s8 power_table_index; /* actual (compenst'd) index into gain table */
217 s8 requested_power; /* scan pwr (dBm) requested for chnl/rate */
221 * One for each channel, holds all channel setup data
222 * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
225 struct iwl_channel_info {
226 struct iwl4965_channel_tgd_info tgd;
227 struct iwl4965_channel_tgh_info tgh;
228 struct iwl_eeprom_channel eeprom; /* EEPROM regulatory limit */
229 struct iwl_eeprom_channel ht40_eeprom; /* EEPROM regulatory limit for
232 u8 channel; /* channel number */
233 u8 flags; /* flags copied from EEPROM */
234 s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
235 s8 curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) limit */
236 s8 min_power; /* always 0 */
237 s8 scan_power; /* (dBm) regul. eeprom, direct scans, any rate */
239 u8 group_index; /* 0-4, maps channel to group1/2/3/4/5 */
240 u8 band_index; /* 0-4, maps channel to band1/2/3/4/5 */
241 enum ieee80211_band band;
243 /* HT40 channel info */
244 s8 ht40_max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
245 u8 ht40_flags; /* flags copied from EEPROM */
246 u8 ht40_extension_channel; /* HT_IE_EXT_CHANNEL_* */
248 /* Radio/DSP gain settings for each "normal" data Tx rate.
249 * These include, in addition to RF and DSP gain, a few fields for
250 * remembering/modifying gain settings (indexes). */
251 struct iwl3945_channel_power_info power_info[IWL4965_MAX_RATE];
253 /* Radio/DSP gain settings for each scan rate, for directed scans. */
254 struct iwl3945_scan_power_info scan_pwr_info[IWL_NUM_SCAN_RATES];
257 #define IWL_TX_FIFO_BK 0 /* shared */
258 #define IWL_TX_FIFO_BE 1
259 #define IWL_TX_FIFO_VI 2 /* shared */
260 #define IWL_TX_FIFO_VO 3
261 #define IWL_TX_FIFO_BK_IPAN IWL_TX_FIFO_BK
262 #define IWL_TX_FIFO_BE_IPAN 4
263 #define IWL_TX_FIFO_VI_IPAN IWL_TX_FIFO_VI
264 #define IWL_TX_FIFO_VO_IPAN 5
265 #define IWL_TX_FIFO_UNUSED -1
267 /* Minimum number of queues. MAX_NUM is defined in hw specific files.
268 * Set the minimum to accommodate the 4 standard TX queues, 1 command
269 * queue, 2 (unused) HCCA queues, and 4 HT queues (one for each AC) */
270 #define IWL_MIN_NUM_QUEUES 10
273 * Command queue depends on iPAN support.
275 #define IWL_DEFAULT_CMD_QUEUE_NUM 4
276 #define IWL_IPAN_CMD_QUEUE_NUM 9
279 * This queue number is required for proper operation
280 * because the ucode will stop/start the scheduler as
283 #define IWL_IPAN_MCAST_QUEUE 8
285 /* Power management (not Tx power) structures */
292 #define IEEE80211_DATA_LEN 2304
293 #define IEEE80211_4ADDR_LEN 30
294 #define IEEE80211_HLEN (IEEE80211_4ADDR_LEN)
295 #define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
299 struct ieee80211_hdr frame;
300 struct iwl_tx_beacon_cmd beacon;
301 u8 raw[IEEE80211_FRAME_LEN];
304 struct list_head list;
307 #define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
308 #define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
309 #define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
315 CMD_SIZE_HUGE = (1 << 0),
316 CMD_ASYNC = (1 << 1),
317 CMD_WANT_SKB = (1 << 2),
320 #define DEF_CMD_PAYLOAD_SIZE 320
323 * struct iwl_device_cmd
325 * For allocation of the command and tx queues, this establishes the overall
326 * size of the largest command we send to uCode, except for a scan command
327 * (which is relatively huge; space is allocated separately).
329 struct iwl_device_cmd {
330 struct iwl_cmd_header hdr; /* uCode API */
336 struct iwl_tx_cmd tx;
337 struct iwl6000_channel_switch_cmd chswitch;
338 u8 payload[DEF_CMD_PAYLOAD_SIZE];
342 #define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_device_cmd))
345 struct iwl_host_cmd {
347 unsigned long reply_page;
348 void (*callback)(struct iwl_priv *priv,
349 struct iwl_device_cmd *cmd,
350 struct iwl_rx_packet *pkt);
356 #define SUP_RATE_11A_MAX_NUM_CHANNELS 8
357 #define SUP_RATE_11B_MAX_NUM_CHANNELS 4
358 #define SUP_RATE_11G_MAX_NUM_CHANNELS 12
361 * struct iwl_rx_queue - Rx queue
362 * @bd: driver's pointer to buffer of receive buffer descriptors (rbd)
363 * @bd_dma: bus address of buffer of receive buffer descriptors (rbd)
364 * @read: Shared index to newest available Rx buffer
365 * @write: Shared index to oldest written Rx packet
366 * @free_count: Number of pre-allocated buffers in rx_free
367 * @rx_free: list of free SKBs for use
368 * @rx_used: List of Rx buffers with no SKB
369 * @need_update: flag to indicate we need to update read/write index
370 * @rb_stts: driver's pointer to receive buffer status
371 * @rb_stts_dma: bus address of receive buffer status
373 * NOTE: rx_free and rx_used are used as a FIFO for iwl_rx_mem_buffers
375 struct iwl_rx_queue {
378 struct iwl_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
379 struct iwl_rx_mem_buffer *queue[RX_QUEUE_SIZE];
384 struct list_head rx_free;
385 struct list_head rx_used;
387 struct iwl_rb_status *rb_stts;
388 dma_addr_t rb_stts_dma;
392 #define IWL_SUPPORTED_RATES_IE_LEN 8
394 #define MAX_TID_COUNT 9
396 #define IWL_INVALID_RATE 0xFF
397 #define IWL_INVALID_VALUE -1
400 * struct iwl_ht_agg -- aggregation status while waiting for block-ack
401 * @txq_id: Tx queue used for Tx attempt
402 * @frame_count: # frames attempted by Tx command
403 * @wait_for_ba: Expect block-ack before next Tx reply
404 * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window
405 * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window
406 * @bitmap1: High order, one bit for each frame pending ACK in Tx window
407 * @rate_n_flags: Rate at which Tx was attempted
409 * If REPLY_TX indicates that aggregation was attempted, driver must wait
410 * for block ack (REPLY_COMPRESSED_BA). This struct stores tx reply info
411 * until block ack arrives.
420 #define IWL_AGG_OFF 0
422 #define IWL_EMPTYING_HW_QUEUE_ADDBA 2
423 #define IWL_EMPTYING_HW_QUEUE_DELBA 3
428 struct iwl_tid_data {
429 u16 seq_number; /* agn only */
431 struct iwl_ht_agg agg;
441 union iwl_ht_rate_supp {
449 #define CFG_HT_RX_AMPDU_FACTOR_8K (0x0)
450 #define CFG_HT_RX_AMPDU_FACTOR_16K (0x1)
451 #define CFG_HT_RX_AMPDU_FACTOR_32K (0x2)
452 #define CFG_HT_RX_AMPDU_FACTOR_64K (0x3)
453 #define CFG_HT_RX_AMPDU_FACTOR_DEF CFG_HT_RX_AMPDU_FACTOR_64K
454 #define CFG_HT_RX_AMPDU_FACTOR_MAX CFG_HT_RX_AMPDU_FACTOR_64K
455 #define CFG_HT_RX_AMPDU_FACTOR_MIN CFG_HT_RX_AMPDU_FACTOR_8K
458 * Maximal MPDU density for TX aggregation
464 #define CFG_HT_MPDU_DENSITY_2USEC (0x4)
465 #define CFG_HT_MPDU_DENSITY_4USEC (0x5)
466 #define CFG_HT_MPDU_DENSITY_8USEC (0x6)
467 #define CFG_HT_MPDU_DENSITY_16USEC (0x7)
468 #define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_4USEC
469 #define CFG_HT_MPDU_DENSITY_MAX CFG_HT_MPDU_DENSITY_16USEC
470 #define CFG_HT_MPDU_DENSITY_MIN (0x1)
472 struct iwl_ht_config {
473 bool single_chain_sufficient;
474 enum ieee80211_smps_mode smps; /* current smps mode */
478 struct iwl_qos_info {
480 struct iwl_qosparam_cmd def_qos_parm;
484 * Structure should be accessed with sta_lock held. When station addition
485 * is in progress (IWL_STA_UCODE_INPROGRESS) it is possible to access only
486 * the commands (iwl_addsta_cmd and iwl_link_quality_cmd) without sta_lock
489 struct iwl_station_entry {
490 struct iwl_addsta_cmd sta;
491 struct iwl_tid_data tid[MAX_TID_COUNT];
493 struct iwl_hw_key keyinfo;
494 struct iwl_link_quality_cmd *lq;
497 struct iwl_station_priv_common {
498 struct iwl_rxon_context *ctx;
503 * iwl_station_priv: Driver's private station information
505 * When mac80211 creates a station it reserves some space (hw->sta_data_size)
506 * in the structure for use by driver. This structure is places in that
509 * The common struct MUST be first because it is shared between
512 struct iwl_station_priv {
513 struct iwl_station_priv_common common;
514 struct iwl_lq_sta lq_sta;
515 atomic_t pending_frames;
521 * struct iwl_vif_priv - driver's private per-interface information
523 * When mac80211 allocates a virtual interface, it can allocate
524 * space for us to put data into.
526 struct iwl_vif_priv {
527 struct iwl_rxon_context *ctx;
528 u8 ibss_bssid_sta_id;
531 /* one for each uCode image (inst/data, boot/init/runtime) */
533 void *v_addr; /* access by driver */
534 dma_addr_t p_addr; /* access by card's busmaster DMA */
538 /* v1/v2 uCode file layout */
539 struct iwl_ucode_header {
540 __le32 ver; /* major/minor/API/serial */
543 __le32 inst_size; /* bytes of runtime code */
544 __le32 data_size; /* bytes of runtime data */
545 __le32 init_size; /* bytes of init code */
546 __le32 init_data_size; /* bytes of init data */
547 __le32 boot_size; /* bytes of bootstrap code */
548 u8 data[0]; /* in same order as sizes */
551 __le32 build; /* build number */
552 __le32 inst_size; /* bytes of runtime code */
553 __le32 data_size; /* bytes of runtime data */
554 __le32 init_size; /* bytes of init code */
555 __le32 init_data_size; /* bytes of init data */
556 __le32 boot_size; /* bytes of bootstrap code */
557 u8 data[0]; /* in same order as sizes */
563 * new TLV uCode file layout
565 * The new TLV file format contains TLVs, that each specify
566 * some piece of data. To facilitate "groups", for example
567 * different instruction image with different capabilities,
568 * bundled with the same init image, an alternative mechanism
570 * When the alternative field is 0, that means that the item
571 * is always valid. When it is non-zero, then it is only
572 * valid in conjunction with items of the same alternative,
573 * in which case the driver (user) selects one alternative
577 enum iwl_ucode_tlv_type {
578 IWL_UCODE_TLV_INVALID = 0, /* unused */
579 IWL_UCODE_TLV_INST = 1,
580 IWL_UCODE_TLV_DATA = 2,
581 IWL_UCODE_TLV_INIT = 3,
582 IWL_UCODE_TLV_INIT_DATA = 4,
583 IWL_UCODE_TLV_BOOT = 5,
584 IWL_UCODE_TLV_PROBE_MAX_LEN = 6, /* a u32 value */
585 IWL_UCODE_TLV_PAN = 7,
586 IWL_UCODE_TLV_RUNT_EVTLOG_PTR = 8,
587 IWL_UCODE_TLV_RUNT_EVTLOG_SIZE = 9,
588 IWL_UCODE_TLV_RUNT_ERRLOG_PTR = 10,
589 IWL_UCODE_TLV_INIT_EVTLOG_PTR = 11,
590 IWL_UCODE_TLV_INIT_EVTLOG_SIZE = 12,
591 IWL_UCODE_TLV_INIT_ERRLOG_PTR = 13,
592 IWL_UCODE_TLV_ENHANCE_SENS_TBL = 14,
593 IWL_UCODE_TLV_PHY_CALIBRATION_SIZE = 15,
596 struct iwl_ucode_tlv {
597 __le16 type; /* see above */
598 __le16 alternative; /* see comment */
599 __le32 length; /* not including type/length fields */
603 #define IWL_TLV_UCODE_MAGIC 0x0a4c5749
605 struct iwl_tlv_ucode_header {
607 * The TLV style ucode header is distinguished from
608 * the v1/v2 style header by first four bytes being
609 * zero, as such is an invalid combination of
610 * major/minor/API/serial versions.
614 u8 human_readable[64];
615 __le32 ver; /* major/minor/API/serial */
617 __le64 alternatives; /* bitmask of valid alternatives */
619 * The data contained herein has a TLV layout,
620 * see above for the TLV header and types.
621 * Note that each TLV is padded to a length
622 * that is a multiple of 4 for alignment.
627 struct iwl4965_ibss_seq {
631 unsigned long packet_time;
632 struct list_head list;
635 struct iwl_sensitivity_ranges {
642 u16 auto_corr_min_ofdm;
643 u16 auto_corr_min_ofdm_mrc;
644 u16 auto_corr_min_ofdm_x1;
645 u16 auto_corr_min_ofdm_mrc_x1;
647 u16 auto_corr_max_ofdm;
648 u16 auto_corr_max_ofdm_mrc;
649 u16 auto_corr_max_ofdm_x1;
650 u16 auto_corr_max_ofdm_mrc_x1;
652 u16 auto_corr_max_cck;
653 u16 auto_corr_max_cck_mrc;
654 u16 auto_corr_min_cck;
655 u16 auto_corr_min_cck_mrc;
657 u16 barker_corr_th_min;
658 u16 barker_corr_th_min_mrc;
663 #define KELVIN_TO_CELSIUS(x) ((x)-273)
664 #define CELSIUS_TO_KELVIN(x) ((x)+273)
668 * struct iwl_hw_params
669 * @max_txq_num: Max # Tx queues supported
670 * @dma_chnl_num: Number of Tx DMA/FIFO channels
671 * @scd_bc_tbls_size: size of scheduler byte count tables
672 * @tfd_size: TFD size
673 * @tx/rx_chains_num: Number of TX/RX chains
674 * @valid_tx/rx_ant: usable antennas
675 * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
676 * @max_rxq_log: Log-base-2 of max_rxq_size
677 * @rx_page_order: Rx buffer page order
678 * @rx_wrt_ptr_reg: FH{39}_RSCSR_CHNL0_WPTR
680 * @ht40_channel: is 40MHz width possible in band 2.4
681 * BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ)
682 * @sw_crypto: 0 for hw, 1 for sw
683 * @max_xxx_size: for ucode uses
684 * @ct_kill_threshold: temperature threshold
685 * @beacon_time_tsf_bits: number of valid tsf bits for beacon time
686 * @calib_init_cfg: setup initial calibrations for the hw
687 * @struct iwl_sensitivity_ranges: range of sensitivity values
689 struct iwl_hw_params {
692 u16 scd_bc_tbls_size;
704 u8 max_beacon_itrvl; /* in 1024 ms */
708 u32 ct_kill_threshold; /* value in hw-dependent units */
709 u32 ct_kill_exit_threshold; /* value in hw-dependent units */
710 /* for 1000, 6000 series and up */
711 u16 beacon_time_tsf_bits;
713 const struct iwl_sensitivity_ranges *sens;
717 /******************************************************************************
719 * Functions implemented in core module which are forward declared here
720 * for use by iwl-[4-5].c
722 * NOTE: The implementation of these functions are not hardware specific
723 * which is why they are in the core module files.
725 * Naming convention --
726 * iwl_ <-- Is part of iwlwifi
727 * iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
728 * iwl4965_bg_ <-- Called from work queue context
729 * iwl4965_mac_ <-- mac80211 callback
731 ****************************************************************************/
732 extern void iwl_update_chain_flags(struct iwl_priv *priv);
733 extern int iwl_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src);
734 extern const u8 iwl_bcast_addr[ETH_ALEN];
735 extern int iwl_rxq_stop(struct iwl_priv *priv);
736 extern void iwl_txq_ctx_stop(struct iwl_priv *priv);
737 extern int iwl_queue_space(const struct iwl_queue *q);
738 static inline int iwl_queue_used(const struct iwl_queue *q, int i)
740 return q->write_ptr >= q->read_ptr ?
741 (i >= q->read_ptr && i < q->write_ptr) :
742 !(i < q->read_ptr && i >= q->write_ptr);
746 static inline u8 get_cmd_index(struct iwl_queue *q, u32 index, int is_huge)
749 * This is for init calibration result and scan command which
750 * required buffer > TFD_MAX_PAYLOAD_SIZE,
751 * the big buffer at end of command array
754 return q->n_window; /* must be power of 2 */
756 /* Otherwise, use normal size buffers */
757 return index & (q->n_window - 1);
767 #define IWL_OPERATION_MODE_AUTO 0
768 #define IWL_OPERATION_MODE_HT_ONLY 1
769 #define IWL_OPERATION_MODE_MIXED 2
770 #define IWL_OPERATION_MODE_20MHZ 3
772 #define IWL_TX_CRC_SIZE 4
773 #define IWL_TX_DELIMITER_SIZE 4
775 #define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
777 /* Sensitivity and chain noise calibration */
778 #define INITIALIZATION_VALUE 0xFFFF
779 #define IWL4965_CAL_NUM_BEACONS 20
780 #define IWL_CAL_NUM_BEACONS 16
781 #define MAXIMUM_ALLOWED_PATHLOSS 15
783 #define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
785 #define MAX_FA_OFDM 50
786 #define MIN_FA_OFDM 5
787 #define MAX_FA_CCK 50
790 #define AUTO_CORR_STEP_OFDM 1
792 #define AUTO_CORR_STEP_CCK 3
793 #define AUTO_CORR_MAX_TH_CCK 160
796 #define NRG_STEP_CCK 2
798 #define MAX_NUMBER_CCK_NO_FA 100
800 #define AUTO_CORR_CCK_MIN_VAL_DEF (125)
805 #define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
806 #define ALL_BAND_FILTER 0xFF00
807 #define IN_BAND_FILTER 0xFF
808 #define MIN_AVERAGE_NOISE_MAX_VALUE 0xFFFFFFFF
810 #define NRG_NUM_PREV_STAT_L 20
811 #define NUM_RX_CHAINS 3
813 enum iwl4965_false_alarm_state {
816 IWL_FA_GOOD_RANGE = 2,
819 enum iwl4965_chain_noise_state {
820 IWL_CHAIN_NOISE_ALIVE = 0, /* must be 0 */
821 IWL_CHAIN_NOISE_ACCUMULATE,
822 IWL_CHAIN_NOISE_CALIBRATED,
823 IWL_CHAIN_NOISE_DONE,
826 enum iwl4965_calib_enabled_state {
827 IWL_CALIB_DISABLED = 0, /* must be 0 */
828 IWL_CALIB_ENABLED = 1,
834 * defines the order in which results of initial calibrations
835 * should be sent to the runtime uCode
842 IWL_CALIB_TX_IQ_PERD,
847 /* Opaque calibration results */
848 struct iwl_calib_result {
859 /* Sensitivity calib data */
860 struct iwl_sensitivity_data {
862 u32 auto_corr_ofdm_mrc;
863 u32 auto_corr_ofdm_x1;
864 u32 auto_corr_ofdm_mrc_x1;
866 u32 auto_corr_cck_mrc;
868 u32 last_bad_plcp_cnt_ofdm;
869 u32 last_fa_cnt_ofdm;
870 u32 last_bad_plcp_cnt_cck;
876 u8 nrg_silence_rssi[NRG_NUM_PREV_STAT_L];
881 s32 nrg_auto_corr_silence_diff;
882 u32 num_in_cck_no_fa;
885 u16 barker_corr_th_min;
886 u16 barker_corr_th_min_mrc;
890 /* Chain noise (differential Rx gain) calib data */
891 struct iwl_chain_noise_data {
900 u8 disconn_array[NUM_RX_CHAINS];
901 u8 delta_gain_code[NUM_RX_CHAINS];
906 #define EEPROM_SEM_TIMEOUT 10 /* milliseconds */
907 #define EEPROM_SEM_RETRY_LIMIT 1000 /* number of attempts (not time) */
909 #define IWL_TRAFFIC_ENTRIES (256)
910 #define IWL_TRAFFIC_ENTRY_SIZE (64)
913 MEASUREMENT_READY = (1 << 0),
914 MEASUREMENT_ACTIVE = (1 << 1),
918 NVM_DEVICE_TYPE_EEPROM = 0,
923 * Two types of OTP memory access modes
924 * IWL_OTP_ACCESS_ABSOLUTE - absolute address mode,
925 * based on physical memory addressing
926 * IWL_OTP_ACCESS_RELATIVE - relative address mode,
927 * based on logical memory addressing
929 enum iwl_access_mode {
930 IWL_OTP_ACCESS_ABSOLUTE,
931 IWL_OTP_ACCESS_RELATIVE,
935 * enum iwl_pa_type - Power Amplifier type
936 * @IWL_PA_SYSTEM: based on uCode configuration
937 * @IWL_PA_INTERNAL: use Internal only
944 /* interrupt statistics */
945 struct isr_statistics {
955 u32 rx_handlers[REPLY_MAX];
960 /* reply_tx_statistics (for _agn devices) */
961 struct reply_tx_error_statistics {
967 u32 int_crossed_retry;
983 u32 sta_color_mismatch;
987 /* reply_agg_tx_statistics (for _agn devices) */
988 struct reply_agg_tx_error_statistics {
995 u32 last_sent_bt_kill;
1004 #ifdef CONFIG_IWLWIFI_DEBUGFS
1005 /* management statistics */
1006 enum iwl_mgmt_stats {
1007 MANAGEMENT_ASSOC_REQ = 0,
1008 MANAGEMENT_ASSOC_RESP,
1009 MANAGEMENT_REASSOC_REQ,
1010 MANAGEMENT_REASSOC_RESP,
1011 MANAGEMENT_PROBE_REQ,
1012 MANAGEMENT_PROBE_RESP,
1015 MANAGEMENT_DISASSOC,
1021 /* control statistics */
1022 enum iwl_ctrl_stats {
1023 CONTROL_BACK_REQ = 0,
1034 struct traffic_stats {
1035 u32 mgmt[MANAGEMENT_MAX];
1036 u32 ctrl[CONTROL_MAX];
1041 struct traffic_stats {
1047 * iwl_switch_rxon: "channel switch" structure
1049 * @ switch_in_progress: channel switch in progress
1050 * @ channel: new channel
1052 struct iwl_switch_rxon {
1053 bool switch_in_progress;
1058 * schedule the timer to wake up every UCODE_TRACE_PERIOD milliseconds
1059 * to perform continuous uCode event logging operation if enabled
1061 #define UCODE_TRACE_PERIOD (100)
1064 * iwl_event_log: current uCode event log position
1066 * @ucode_trace: enable/disable ucode continuous trace timer
1067 * @num_wraps: how many times the event buffer wraps
1068 * @next_entry: the entry just before the next one that uCode would fill
1069 * @non_wraps_count: counter for no wrap detected when dump ucode events
1070 * @wraps_once_count: counter for wrap once detected when dump ucode events
1071 * @wraps_more_count: counter for wrap more than once detected
1072 * when dump ucode events
1074 struct iwl_event_log {
1078 int non_wraps_count;
1079 int wraps_once_count;
1080 int wraps_more_count;
1084 * host interrupt timeout value
1085 * used with setting interrupt coalescing timer
1086 * the CSR_INT_COALESCING is an 8 bit register in 32-usec unit
1088 * default interrupt coalescing timer is 64 x 32 = 2048 usecs
1089 * default interrupt coalescing calibration timer is 16 x 32 = 512 usecs
1091 #define IWL_HOST_INT_TIMEOUT_MAX (0xFF)
1092 #define IWL_HOST_INT_TIMEOUT_DEF (0x40)
1093 #define IWL_HOST_INT_TIMEOUT_MIN (0x0)
1094 #define IWL_HOST_INT_CALIB_TIMEOUT_MAX (0xFF)
1095 #define IWL_HOST_INT_CALIB_TIMEOUT_DEF (0x10)
1096 #define IWL_HOST_INT_CALIB_TIMEOUT_MIN (0x0)
1099 * This is the threshold value of plcp error rate per 100mSecs. It is
1100 * used to set and check for the validity of plcp_delta.
1102 #define IWL_MAX_PLCP_ERR_THRESHOLD_MIN (1)
1103 #define IWL_MAX_PLCP_ERR_THRESHOLD_DEF (50)
1104 #define IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF (100)
1105 #define IWL_MAX_PLCP_ERR_EXT_LONG_THRESHOLD_DEF (200)
1106 #define IWL_MAX_PLCP_ERR_THRESHOLD_MAX (255)
1107 #define IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE (0)
1109 #define IWL_DELAY_NEXT_FORCE_RF_RESET (HZ*3)
1110 #define IWL_DELAY_NEXT_FORCE_FW_RELOAD (HZ*5)
1112 /* timer constants use to monitor and recover stuck tx queues in mSecs */
1113 #define IWL_DEF_MONITORING_PERIOD (1000)
1114 #define IWL_LONG_MONITORING_PERIOD (5000)
1115 #define IWL_ONE_HUNDRED_MSECS (100)
1116 #define IWL_MAX_MONITORING_PERIOD (60000)
1118 /* BT Antenna Coupling Threshold (dB) */
1119 #define IWL_BT_ANTENNA_COUPLING_THRESHOLD (35)
1124 IWL_MAX_FORCE_RESET,
1127 struct iwl_force_reset {
1128 int reset_request_count;
1129 int reset_success_count;
1130 int reset_reject_count;
1131 unsigned long reset_duration;
1132 unsigned long last_force_reset_jiffies;
1135 /* extend beacon time format bit shifting */
1138 * bits 31:24 - extended
1139 * bits 23:0 - interval
1141 #define IWL3945_EXT_BEACON_TIME_POS 24
1144 * bits 31:22 - extended
1145 * bits 21:0 - interval
1147 #define IWLAGN_EXT_BEACON_TIME_POS 22
1149 enum iwl_rxon_context_id {
1156 struct iwl_rxon_context {
1157 struct ieee80211_vif *vif;
1159 const u8 *ac_to_fifo;
1160 const u8 *ac_to_queue;
1164 * We could use the vif to indicate active, but we
1165 * also need it to be active during disabling when
1166 * we already removed the vif for type setting.
1168 bool always_active, is_active;
1170 enum iwl_rxon_context_id ctxid;
1172 u32 interface_modes, exclusive_interface_modes;
1173 u8 unused_devtype, ap_devtype, ibss_devtype, station_devtype;
1176 * We declare this const so it can only be
1177 * changed via explicit cast within the
1178 * routines that actually update the physical
1181 const struct iwl_rxon_cmd active;
1182 struct iwl_rxon_cmd staging;
1184 struct iwl_rxon_time_cmd timing;
1186 struct iwl_qos_info qos_data;
1188 u8 bcast_sta_id, ap_sta_id;
1190 u8 rxon_cmd, rxon_assoc_cmd, rxon_timing_cmd;
1194 struct iwl_wep_key wep_keys[WEP_KEYS_MAX];
1195 u8 key_mapping_keys;
1197 __le32 station_flags;
1200 bool non_gf_sta_present;
1202 bool enabled, is_40mhz;
1203 u8 extension_chan_offset;
1209 /* ieee device used by generic ieee processing code */
1210 struct ieee80211_hw *hw;
1211 struct ieee80211_channel *ieee_channels;
1212 struct ieee80211_rate *ieee_rates;
1213 struct iwl_cfg *cfg;
1215 /* temporary frame storage list */
1216 struct list_head free_frames;
1219 enum ieee80211_band band;
1222 void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv,
1223 struct iwl_rx_mem_buffer *rxb);
1225 struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
1227 /* spectrum measurement report caching */
1228 struct iwl_spectrum_notification measure_report;
1229 u8 measurement_status;
1231 /* ucode beacon time */
1232 u32 ucode_beacon_time;
1233 int missed_beacon_threshold;
1235 /* track IBSS manager (last beacon) status */
1238 /* storing the jiffies when the plcp error rate is received */
1239 unsigned long plcp_jiffies;
1242 struct iwl_force_reset force_reset[IWL_MAX_FORCE_RESET];
1244 /* we allocate array of iwl_channel_info for NIC's valid channels.
1245 * Access via channel # using indirect index array */
1246 struct iwl_channel_info *channel_info; /* channel info array */
1247 u8 channel_count; /* # of channels */
1249 /* thermal calibration */
1250 s32 temperature; /* degrees Kelvin */
1251 s32 last_temperature;
1253 /* init calibration results */
1254 struct iwl_calib_result calib_results[IWL_CALIB_MAX];
1256 /* Scan related variables */
1257 unsigned long scan_start;
1258 unsigned long scan_start_tsf;
1260 enum ieee80211_band scan_band;
1261 struct cfg80211_scan_request *scan_request;
1262 struct ieee80211_vif *scan_vif;
1263 bool is_internal_short_scan;
1264 u8 scan_tx_ant[IEEE80211_NUM_BANDS];
1268 spinlock_t lock; /* protect general shared data */
1269 spinlock_t hcmd_lock; /* protect hcmd */
1270 spinlock_t reg_lock; /* protect hw register access */
1272 struct mutex sync_cmd_mutex; /* enable serialization of sync commands */
1274 /* basic pci-network driver stuff */
1275 struct pci_dev *pci_dev;
1277 /* pci hardware address support */
1278 void __iomem *hw_base;
1283 /* microcode/device supports multiple contexts */
1286 /* command queue number */
1289 /* max number of station keys */
1292 /* EEPROM MAC addresses */
1293 struct mac_address addresses[2];
1295 /* uCode images, save to reload in case of failure */
1296 int fw_index; /* firmware we're trying to load */
1297 u32 ucode_ver; /* version of ucode, copy of
1299 struct fw_desc ucode_code; /* runtime inst */
1300 struct fw_desc ucode_data; /* runtime data original */
1301 struct fw_desc ucode_data_backup; /* runtime data save/restore */
1302 struct fw_desc ucode_init; /* initialization inst */
1303 struct fw_desc ucode_init_data; /* initialization data */
1304 struct fw_desc ucode_boot; /* bootstrap inst */
1305 enum ucode_type ucode_type;
1306 u8 ucode_write_complete; /* the image write is complete */
1307 char firmware_name[25];
1309 struct iwl_rxon_context contexts[NUM_IWL_RXON_CTX];
1311 struct iwl_switch_rxon switch_rxon;
1313 /* 1st responses from initialize and runtime uCode images.
1314 * _agn's initialize alive response contains some calibration data. */
1315 struct iwl_init_alive_resp card_alive_init;
1316 struct iwl_alive_resp card_alive;
1318 unsigned long last_blink_time;
1326 struct iwl_sensitivity_data sensitivity_data;
1327 struct iwl_chain_noise_data chain_noise_data;
1328 bool enhance_sensitivity_table;
1329 __le16 sensitivity_tbl[HD_TABLE_SIZE];
1330 __le16 enhance_sensitivity_tbl[ENHANCE_HD_TABLE_ENTRIES];
1332 struct iwl_ht_config current_ht_config;
1334 /* Rate scaling data */
1337 wait_queue_head_t wait_command_queue;
1339 int activity_timer_active;
1341 /* Rx and Tx DMA processing queues */
1342 struct iwl_rx_queue rxq;
1343 struct iwl_tx_queue *txq;
1344 unsigned long txq_ctx_active_msk;
1345 struct iwl_dma_ptr kw; /* keep warm address */
1346 struct iwl_dma_ptr scd_bc_tbls;
1348 u32 scd_base_addr; /* scheduler sram base address */
1350 unsigned long status;
1352 /* counts mgmt, ctl, and data packets */
1353 struct traffic_stats tx_stats;
1354 struct traffic_stats rx_stats;
1356 /* counts interrupts */
1357 struct isr_statistics isr_stats;
1359 struct iwl_power_mgr power_data;
1360 struct iwl_tt_mgmt thermal_throttle;
1362 /* context information */
1363 u8 bssid[ETH_ALEN]; /* used only on 3945 but filled by core */
1365 /* station table variables */
1367 /* Note: if lock and sta_lock are needed, lock must be acquired first */
1368 spinlock_t sta_lock;
1370 struct iwl_station_entry stations[IWL_STATION_COUNT];
1371 unsigned long ucode_key_table;
1373 /* queue refcounts */
1374 #define IWL_MAX_HW_QUEUES 32
1375 unsigned long queue_stopped[BITS_TO_LONGS(IWL_MAX_HW_QUEUES)];
1377 atomic_t queue_stop_count[4];
1379 /* Indication if ieee80211_ops->open has been called */
1382 u8 mac80211_registered;
1384 /* eeprom -- this is in the card's little endian byte order */
1386 int nvm_device_type;
1387 struct iwl_eeprom_calib_info *calib_info;
1389 enum nl80211_iftype iw_mode;
1391 struct sk_buff *ibss_beacon;
1393 /* Last Rx'd beacon timestamp */
1397 #if defined(CONFIG_IWL3945) || defined(CONFIG_IWL3945_MODULE)
1400 dma_addr_t shared_phys;
1402 struct delayed_work thermal_periodic;
1403 struct delayed_work rfkill_poll;
1405 struct iwl3945_notif_statistics statistics;
1406 #ifdef CONFIG_IWLWIFI_DEBUGFS
1407 struct iwl3945_notif_statistics accum_statistics;
1408 struct iwl3945_notif_statistics delta_statistics;
1409 struct iwl3945_notif_statistics max_delta;
1413 int last_rx_rssi; /* From Rx packet statistics */
1415 /* Rx'd packet timing information */
1416 u32 last_beacon_time;
1420 * each calibration channel group in the
1421 * EEPROM has a derived clip setting for
1424 const struct iwl3945_clip_group clip_groups[5];
1428 #if defined(CONFIG_IWLAGN) || defined(CONFIG_IWLAGN_MODULE)
1433 dma_addr_t ict_tbl_dma;
1434 dma_addr_t aligned_ict_tbl_dma;
1439 * reporting the number of tids has AGG on. 0 means
1444 struct iwl_rx_phy_res last_phy_res;
1445 bool last_phy_res_valid;
1447 struct completion firmware_loading_complete;
1449 u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr;
1450 u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr;
1453 * chain noise reset and gain commands are the
1454 * two extra calibration commands follows the standard
1455 * phy calibration commands
1457 u8 phy_calib_chain_noise_reset_cmd;
1458 u8 phy_calib_chain_noise_gain_cmd;
1460 struct iwl_notif_statistics statistics;
1461 struct iwl_bt_notif_statistics statistics_bt;
1462 /* counts reply_tx error */
1463 struct reply_tx_error_statistics reply_tx_stats;
1464 struct reply_agg_tx_error_statistics reply_agg_tx_stats;
1465 #ifdef CONFIG_IWLWIFI_DEBUGFS
1466 struct iwl_notif_statistics accum_statistics;
1467 struct iwl_notif_statistics delta_statistics;
1468 struct iwl_notif_statistics max_delta;
1469 struct iwl_bt_notif_statistics accum_statistics_bt;
1470 struct iwl_bt_notif_statistics delta_statistics_bt;
1471 struct iwl_bt_notif_statistics max_delta_bt;
1479 u8 bt_traffic_load, notif_bt_traffic_load;
1480 bool bt_ch_announce;
1482 bool bt_full_concurrent;
1483 bool bt_ant_couple_ok;
1484 __le32 kill_ack_mask;
1485 __le32 kill_cts_mask;
1489 u16 dynamic_frag_thresh;
1490 u16 dynamic_agg_thresh;
1491 u8 bt_ci_compliance;
1492 struct work_struct bt_traffic_change_work;
1494 struct iwl_hw_params hw_params;
1498 struct workqueue_struct *workqueue;
1500 struct work_struct restart;
1501 struct work_struct scan_completed;
1502 struct work_struct rx_replenish;
1503 struct work_struct abort_scan;
1504 struct work_struct beacon_update;
1505 struct iwl_rxon_context *beacon_ctx;
1507 struct work_struct tt_work;
1508 struct work_struct ct_enter;
1509 struct work_struct ct_exit;
1510 struct work_struct start_internal_scan;
1511 struct work_struct tx_flush;
1512 struct work_struct bt_full_concurrency;
1513 struct work_struct bt_runtime_config;
1515 struct tasklet_struct irq_tasklet;
1517 struct delayed_work init_alive_start;
1518 struct delayed_work alive_start;
1519 struct delayed_work scan_check;
1522 s8 tx_power_user_lmt;
1523 s8 tx_power_device_lmt;
1524 s8 tx_power_lmt_in_half_dbm; /* max tx power in half-dBm format */
1527 #ifdef CONFIG_IWLWIFI_DEBUG
1528 /* debugging info */
1529 u32 debug_level; /* per device debugging will override global
1530 iwl_debug_level if set */
1531 #endif /* CONFIG_IWLWIFI_DEBUG */
1532 #ifdef CONFIG_IWLWIFI_DEBUGFS
1538 struct dentry *debugfs_dir;
1539 u32 dbgfs_sram_offset, dbgfs_sram_len;
1541 #endif /* CONFIG_IWLWIFI_DEBUGFS */
1543 struct work_struct txpower_work;
1544 u32 disable_sens_cal;
1545 u32 disable_chain_noise_cal;
1546 u32 disable_tx_power_cal;
1547 struct work_struct run_time_calib_work;
1548 struct timer_list statistics_periodic;
1549 struct timer_list ucode_trace;
1550 struct timer_list monitor_recover;
1553 struct iwl_event_log event_log;
1556 static inline void iwl_txq_ctx_activate(struct iwl_priv *priv, int txq_id)
1558 set_bit(txq_id, &priv->txq_ctx_active_msk);
1561 static inline void iwl_txq_ctx_deactivate(struct iwl_priv *priv, int txq_id)
1563 clear_bit(txq_id, &priv->txq_ctx_active_msk);
1566 #ifdef CONFIG_IWLWIFI_DEBUG
1567 const char *iwl_get_tx_fail_reason(u32 status);
1569 * iwl_get_debug_level: Return active debug level for device
1571 * Using sysfs it is possible to set per device debug level. This debug
1572 * level will be used if set, otherwise the global debug level which can be
1573 * set via module parameter is used.
1575 static inline u32 iwl_get_debug_level(struct iwl_priv *priv)
1577 if (priv->debug_level)
1578 return priv->debug_level;
1580 return iwl_debug_level;
1583 static inline const char *iwl_get_tx_fail_reason(u32 status) { return ""; }
1585 static inline u32 iwl_get_debug_level(struct iwl_priv *priv)
1587 return iwl_debug_level;
1592 static inline struct ieee80211_hdr *iwl_tx_queue_get_hdr(struct iwl_priv *priv,
1593 int txq_id, int idx)
1595 if (priv->txq[txq_id].txb[idx].skb)
1596 return (struct ieee80211_hdr *)priv->txq[txq_id].
1601 static inline struct iwl_rxon_context *
1602 iwl_rxon_ctx_from_vif(struct ieee80211_vif *vif)
1604 struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
1606 return vif_priv->ctx;
1609 #define for_each_context(priv, ctx) \
1610 for (ctx = &priv->contexts[IWL_RXON_CTX_BSS]; \
1611 ctx < &priv->contexts[NUM_IWL_RXON_CTX]; ctx++) \
1612 if (priv->valid_contexts & BIT(ctx->ctxid))
1614 static inline int iwl_is_associated(struct iwl_priv *priv,
1615 enum iwl_rxon_context_id ctxid)
1617 return (priv->contexts[ctxid].active.filter_flags &
1618 RXON_FILTER_ASSOC_MSK) ? 1 : 0;
1621 static inline int iwl_is_any_associated(struct iwl_priv *priv)
1623 return iwl_is_associated(priv, IWL_RXON_CTX_BSS);
1626 static inline int iwl_is_associated_ctx(struct iwl_rxon_context *ctx)
1628 return (ctx->active.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
1631 static inline int is_channel_valid(const struct iwl_channel_info *ch_info)
1633 if (ch_info == NULL)
1635 return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
1638 static inline int is_channel_radar(const struct iwl_channel_info *ch_info)
1640 return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
1643 static inline u8 is_channel_a_band(const struct iwl_channel_info *ch_info)
1645 return ch_info->band == IEEE80211_BAND_5GHZ;
1648 static inline u8 is_channel_bg_band(const struct iwl_channel_info *ch_info)
1650 return ch_info->band == IEEE80211_BAND_2GHZ;
1653 static inline int is_channel_passive(const struct iwl_channel_info *ch)
1655 return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
1658 static inline int is_channel_ibss(const struct iwl_channel_info *ch)
1660 return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
1663 static inline void __iwl_free_pages(struct iwl_priv *priv, struct page *page)
1665 __free_pages(page, priv->hw_params.rx_page_order);
1666 priv->alloc_rxb_page--;
1669 static inline void iwl_free_pages(struct iwl_priv *priv, unsigned long page)
1671 free_pages(page, priv->hw_params.rx_page_order);
1672 priv->alloc_rxb_page--;
1674 #endif /* __iwl_dev_h__ */