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 #define U32_PAD(n) ((4-(n))&0x3)
55 /* CT-KILL constants */
56 #define CT_KILL_THRESHOLD_LEGACY 110 /* in Celsius */
57 #define CT_KILL_THRESHOLD 114 /* in Celsius */
58 #define CT_KILL_EXIT_THRESHOLD 95 /* in Celsius */
60 /* Default noise level to report when noise measurement is not available.
61 * This may be because we're:
62 * 1) Not associated (4965, no beacon statistics being sent to driver)
63 * 2) Scanning (noise measurement does not apply to associated channel)
64 * 3) Receiving CCK (3945 delivers noise info only for OFDM frames)
65 * Use default noise value of -127 ... this is below the range of measurable
66 * Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
67 * Also, -127 works better than 0 when averaging frames with/without
68 * noise info (e.g. averaging might be done in app); measured dBm values are
69 * always negative ... using a negative value as the default keeps all
70 * averages within an s8's (used in some apps) range of negative values. */
71 #define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
74 * RTS threshold here is total size [2347] minus 4 FCS bytes
76 * a value of 0 means RTS on all data/management packets
77 * a value > max MSDU size means no RTS
78 * else RTS for data/management frames where MPDU is larger
81 #define DEFAULT_RTS_THRESHOLD 2347U
82 #define MIN_RTS_THRESHOLD 0U
83 #define MAX_RTS_THRESHOLD 2347U
84 #define MAX_MSDU_SIZE 2304U
85 #define MAX_MPDU_SIZE 2346U
86 #define DEFAULT_BEACON_INTERVAL 100U
87 #define DEFAULT_SHORT_RETRY_LIMIT 7U
88 #define DEFAULT_LONG_RETRY_LIMIT 4U
90 struct iwl_rx_mem_buffer {
93 struct list_head list;
96 #define rxb_addr(r) page_address(r->page)
99 struct iwl_device_cmd;
101 struct iwl_cmd_meta {
102 /* only for SYNC commands, iff the reply skb is wanted */
103 struct iwl_host_cmd *source;
105 * only for ASYNC commands
106 * (which is somewhat stupid -- look at iwl-sta.c for instance
107 * which duplicates a bunch of code because the callback isn't
108 * invoked for SYNC commands, if it were and its result passed
109 * through it would be simpler...)
111 void (*callback)(struct iwl_priv *priv,
112 struct iwl_device_cmd *cmd,
113 struct iwl_rx_packet *pkt);
115 /* The CMD_SIZE_HUGE flag bit indicates that the command
116 * structure is stored at the end of the shared queue memory. */
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
129 int n_bd; /* number of BDs in this queue */
130 int write_ptr; /* 1-st empty entry (index) host_w*/
131 int read_ptr; /* last used entry (index) host_r*/
132 /* use for monitoring and recovering the stuck queue */
133 dma_addr_t dma_addr; /* physical addr for BD's */
134 int n_window; /* safe queue window */
136 int low_mark; /* low watermark, resume queue if free
137 * space more than this */
138 int high_mark; /* high watermark, stop queue if free
139 * space less than this */
142 /* One for each TFD */
145 struct iwl_rxon_context *ctx;
149 * struct iwl_tx_queue - Tx Queue for DMA
150 * @q: generic Rx/Tx queue descriptor
151 * @bd: base of circular buffer of TFDs
152 * @cmd: array of command/TX buffer pointers
153 * @meta: array of meta data for each command/tx buffer
154 * @dma_addr_cmd: physical address of cmd/tx buffer array
155 * @txb: array of per-TFD driver data
156 * @time_stamp: time (in jiffies) of last read_ptr change
157 * @need_update: indicates need to update read/write index
158 * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
160 * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
161 * descriptors) and required locking structures.
163 #define TFD_TX_CMD_SLOTS 256
164 #define TFD_CMD_SLOTS 32
166 struct iwl_tx_queue {
169 struct iwl_device_cmd **cmd;
170 struct iwl_cmd_meta *meta;
171 struct iwl_tx_info *txb;
172 unsigned long time_stamp;
179 #define IWL_NUM_SCAN_RATES (2)
182 * One for each channel, holds all channel setup data
183 * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
186 struct iwl_channel_info {
187 struct iwl_eeprom_channel eeprom; /* EEPROM regulatory limit */
188 struct iwl_eeprom_channel ht40_eeprom; /* EEPROM regulatory limit for
191 u8 channel; /* channel number */
192 u8 flags; /* flags copied from EEPROM */
193 s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
194 s8 curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) limit */
195 s8 min_power; /* always 0 */
196 s8 scan_power; /* (dBm) regul. eeprom, direct scans, any rate */
198 u8 group_index; /* 0-4, maps channel to group1/2/3/4/5 */
199 u8 band_index; /* 0-4, maps channel to band1/2/3/4/5 */
200 enum ieee80211_band band;
202 /* HT40 channel info */
203 s8 ht40_max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
204 u8 ht40_flags; /* flags copied from EEPROM */
205 u8 ht40_extension_channel; /* HT_IE_EXT_CHANNEL_* */
208 #define IWL_TX_FIFO_BK 0 /* shared */
209 #define IWL_TX_FIFO_BE 1
210 #define IWL_TX_FIFO_VI 2 /* shared */
211 #define IWL_TX_FIFO_VO 3
212 #define IWL_TX_FIFO_BK_IPAN IWL_TX_FIFO_BK
213 #define IWL_TX_FIFO_BE_IPAN 4
214 #define IWL_TX_FIFO_VI_IPAN IWL_TX_FIFO_VI
215 #define IWL_TX_FIFO_VO_IPAN 5
216 #define IWL_TX_FIFO_UNUSED -1
218 /* Minimum number of queues. MAX_NUM is defined in hw specific files.
219 * Set the minimum to accommodate the 4 standard TX queues, 1 command
220 * queue, 2 (unused) HCCA queues, and 4 HT queues (one for each AC) */
221 #define IWL_MIN_NUM_QUEUES 10
224 * Command queue depends on iPAN support.
226 #define IWL_DEFAULT_CMD_QUEUE_NUM 4
227 #define IWL_IPAN_CMD_QUEUE_NUM 9
230 * This queue number is required for proper operation
231 * because the ucode will stop/start the scheduler as
234 #define IWL_IPAN_MCAST_QUEUE 8
236 #define IEEE80211_DATA_LEN 2304
237 #define IEEE80211_4ADDR_LEN 30
238 #define IEEE80211_HLEN (IEEE80211_4ADDR_LEN)
239 #define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
243 struct ieee80211_hdr frame;
244 struct iwl_tx_beacon_cmd beacon;
245 u8 raw[IEEE80211_FRAME_LEN];
248 struct list_head list;
251 #define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
252 #define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
253 #define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
259 CMD_SIZE_HUGE = (1 << 0),
260 CMD_ASYNC = (1 << 1),
261 CMD_WANT_SKB = (1 << 2),
262 CMD_MAPPED = (1 << 3),
265 #define DEF_CMD_PAYLOAD_SIZE 320
268 * struct iwl_device_cmd
270 * For allocation of the command and tx queues, this establishes the overall
271 * size of the largest command we send to uCode, except for a scan command
272 * (which is relatively huge; space is allocated separately).
274 struct iwl_device_cmd {
275 struct iwl_cmd_header hdr; /* uCode API */
281 struct iwl_tx_cmd tx;
282 struct iwl6000_channel_switch_cmd chswitch;
283 u8 payload[DEF_CMD_PAYLOAD_SIZE];
287 #define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_device_cmd))
290 struct iwl_host_cmd {
292 unsigned long reply_page;
293 void (*callback)(struct iwl_priv *priv,
294 struct iwl_device_cmd *cmd,
295 struct iwl_rx_packet *pkt);
301 #define SUP_RATE_11A_MAX_NUM_CHANNELS 8
302 #define SUP_RATE_11B_MAX_NUM_CHANNELS 4
303 #define SUP_RATE_11G_MAX_NUM_CHANNELS 12
306 * struct iwl_rx_queue - Rx queue
307 * @bd: driver's pointer to buffer of receive buffer descriptors (rbd)
308 * @bd_dma: bus address of buffer of receive buffer descriptors (rbd)
309 * @read: Shared index to newest available Rx buffer
310 * @write: Shared index to oldest written Rx packet
311 * @free_count: Number of pre-allocated buffers in rx_free
312 * @rx_free: list of free SKBs for use
313 * @rx_used: List of Rx buffers with no SKB
314 * @need_update: flag to indicate we need to update read/write index
315 * @rb_stts: driver's pointer to receive buffer status
316 * @rb_stts_dma: bus address of receive buffer status
318 * NOTE: rx_free and rx_used are used as a FIFO for iwl_rx_mem_buffers
320 struct iwl_rx_queue {
323 struct iwl_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
324 struct iwl_rx_mem_buffer *queue[RX_QUEUE_SIZE];
329 struct list_head rx_free;
330 struct list_head rx_used;
332 struct iwl_rb_status *rb_stts;
333 dma_addr_t rb_stts_dma;
337 #define IWL_SUPPORTED_RATES_IE_LEN 8
339 #define MAX_TID_COUNT 9
341 #define IWL_INVALID_RATE 0xFF
342 #define IWL_INVALID_VALUE -1
345 * struct iwl_ht_agg -- aggregation status while waiting for block-ack
346 * @txq_id: Tx queue used for Tx attempt
347 * @frame_count: # frames attempted by Tx command
348 * @wait_for_ba: Expect block-ack before next Tx reply
349 * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window
350 * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window
351 * @bitmap1: High order, one bit for each frame pending ACK in Tx window
352 * @rate_n_flags: Rate at which Tx was attempted
354 * If REPLY_TX indicates that aggregation was attempted, driver must wait
355 * for block ack (REPLY_COMPRESSED_BA). This struct stores tx reply info
356 * until block ack arrives.
365 #define IWL_AGG_OFF 0
367 #define IWL_EMPTYING_HW_QUEUE_ADDBA 2
368 #define IWL_EMPTYING_HW_QUEUE_DELBA 3
374 struct iwl_tid_data {
375 u16 seq_number; /* agn only */
377 struct iwl_ht_agg agg;
387 union iwl_ht_rate_supp {
395 #define CFG_HT_RX_AMPDU_FACTOR_8K (0x0)
396 #define CFG_HT_RX_AMPDU_FACTOR_16K (0x1)
397 #define CFG_HT_RX_AMPDU_FACTOR_32K (0x2)
398 #define CFG_HT_RX_AMPDU_FACTOR_64K (0x3)
399 #define CFG_HT_RX_AMPDU_FACTOR_DEF CFG_HT_RX_AMPDU_FACTOR_64K
400 #define CFG_HT_RX_AMPDU_FACTOR_MAX CFG_HT_RX_AMPDU_FACTOR_64K
401 #define CFG_HT_RX_AMPDU_FACTOR_MIN CFG_HT_RX_AMPDU_FACTOR_8K
404 * Maximal MPDU density for TX aggregation
410 #define CFG_HT_MPDU_DENSITY_2USEC (0x4)
411 #define CFG_HT_MPDU_DENSITY_4USEC (0x5)
412 #define CFG_HT_MPDU_DENSITY_8USEC (0x6)
413 #define CFG_HT_MPDU_DENSITY_16USEC (0x7)
414 #define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_4USEC
415 #define CFG_HT_MPDU_DENSITY_MAX CFG_HT_MPDU_DENSITY_16USEC
416 #define CFG_HT_MPDU_DENSITY_MIN (0x1)
418 struct iwl_ht_config {
419 bool single_chain_sufficient;
420 enum ieee80211_smps_mode smps; /* current smps mode */
424 struct iwl_qos_info {
426 struct iwl_qosparam_cmd def_qos_parm;
430 * Structure should be accessed with sta_lock held. When station addition
431 * is in progress (IWL_STA_UCODE_INPROGRESS) it is possible to access only
432 * the commands (iwl_addsta_cmd and iwl_link_quality_cmd) without sta_lock
435 struct iwl_station_entry {
436 struct iwl_addsta_cmd sta;
437 struct iwl_tid_data tid[MAX_TID_COUNT];
439 struct iwl_hw_key keyinfo;
440 struct iwl_link_quality_cmd *lq;
443 struct iwl_station_priv_common {
444 struct iwl_rxon_context *ctx;
449 * iwl_station_priv: Driver's private station information
451 * When mac80211 creates a station it reserves some space (hw->sta_data_size)
452 * in the structure for use by driver. This structure is places in that
455 struct iwl_station_priv {
456 struct iwl_station_priv_common common;
457 struct iwl_lq_sta lq_sta;
458 atomic_t pending_frames;
465 * struct iwl_vif_priv - driver's private per-interface information
467 * When mac80211 allocates a virtual interface, it can allocate
468 * space for us to put data into.
470 struct iwl_vif_priv {
471 struct iwl_rxon_context *ctx;
472 u8 ibss_bssid_sta_id;
475 /* one for each uCode image (inst/data, boot/init/runtime) */
477 void *v_addr; /* access by driver */
478 dma_addr_t p_addr; /* access by card's busmaster DMA */
482 /* v1/v2 uCode file layout */
483 struct iwl_ucode_header {
484 __le32 ver; /* major/minor/API/serial */
487 __le32 inst_size; /* bytes of runtime code */
488 __le32 data_size; /* bytes of runtime data */
489 __le32 init_size; /* bytes of init code */
490 __le32 init_data_size; /* bytes of init data */
491 __le32 boot_size; /* bytes of bootstrap code */
492 u8 data[0]; /* in same order as sizes */
495 __le32 build; /* build number */
496 __le32 inst_size; /* bytes of runtime code */
497 __le32 data_size; /* bytes of runtime data */
498 __le32 init_size; /* bytes of init code */
499 __le32 init_data_size; /* bytes of init data */
500 __le32 boot_size; /* bytes of bootstrap code */
501 u8 data[0]; /* in same order as sizes */
507 * new TLV uCode file layout
509 * The new TLV file format contains TLVs, that each specify
510 * some piece of data. To facilitate "groups", for example
511 * different instruction image with different capabilities,
512 * bundled with the same init image, an alternative mechanism
514 * When the alternative field is 0, that means that the item
515 * is always valid. When it is non-zero, then it is only
516 * valid in conjunction with items of the same alternative,
517 * in which case the driver (user) selects one alternative
521 enum iwl_ucode_tlv_type {
522 IWL_UCODE_TLV_INVALID = 0, /* unused */
523 IWL_UCODE_TLV_INST = 1,
524 IWL_UCODE_TLV_DATA = 2,
525 IWL_UCODE_TLV_INIT = 3,
526 IWL_UCODE_TLV_INIT_DATA = 4,
527 IWL_UCODE_TLV_BOOT = 5,
528 IWL_UCODE_TLV_PROBE_MAX_LEN = 6, /* a u32 value */
529 IWL_UCODE_TLV_PAN = 7,
530 IWL_UCODE_TLV_RUNT_EVTLOG_PTR = 8,
531 IWL_UCODE_TLV_RUNT_EVTLOG_SIZE = 9,
532 IWL_UCODE_TLV_RUNT_ERRLOG_PTR = 10,
533 IWL_UCODE_TLV_INIT_EVTLOG_PTR = 11,
534 IWL_UCODE_TLV_INIT_EVTLOG_SIZE = 12,
535 IWL_UCODE_TLV_INIT_ERRLOG_PTR = 13,
536 IWL_UCODE_TLV_ENHANCE_SENS_TBL = 14,
537 IWL_UCODE_TLV_PHY_CALIBRATION_SIZE = 15,
538 /* 16 and 17 reserved for future use */
539 IWL_UCODE_TLV_FLAGS = 18,
543 * enum iwl_ucode_tlv_flag - ucode API flags
544 * @IWL_UCODE_TLV_FLAGS_PAN: This is PAN capable microcode; this previously
545 * was a separate TLV but moved here to save space.
546 * @IWL_UCODE_TLV_FLAGS_BTSTATS: This uCode image uses BT statistics, which
547 * may be true even if the device doesn't have BT.
548 * @IWL_UCODE_TLV_FLAGS_MFP: This uCode image supports MFP (802.11w).
550 enum iwl_ucode_tlv_flag {
551 IWL_UCODE_TLV_FLAGS_PAN = BIT(0),
552 IWL_UCODE_TLV_FLAGS_BTSTATS = BIT(1),
553 IWL_UCODE_TLV_FLAGS_MFP = BIT(2),
556 struct iwl_ucode_tlv {
557 __le16 type; /* see above */
558 __le16 alternative; /* see comment */
559 __le32 length; /* not including type/length fields */
563 #define IWL_TLV_UCODE_MAGIC 0x0a4c5749
565 struct iwl_tlv_ucode_header {
567 * The TLV style ucode header is distinguished from
568 * the v1/v2 style header by first four bytes being
569 * zero, as such is an invalid combination of
570 * major/minor/API/serial versions.
574 u8 human_readable[64];
575 __le32 ver; /* major/minor/API/serial */
577 __le64 alternatives; /* bitmask of valid alternatives */
579 * The data contained herein has a TLV layout,
580 * see above for the TLV header and types.
581 * Note that each TLV is padded to a length
582 * that is a multiple of 4 for alignment.
587 struct iwl_sensitivity_ranges {
594 u16 auto_corr_min_ofdm;
595 u16 auto_corr_min_ofdm_mrc;
596 u16 auto_corr_min_ofdm_x1;
597 u16 auto_corr_min_ofdm_mrc_x1;
599 u16 auto_corr_max_ofdm;
600 u16 auto_corr_max_ofdm_mrc;
601 u16 auto_corr_max_ofdm_x1;
602 u16 auto_corr_max_ofdm_mrc_x1;
604 u16 auto_corr_max_cck;
605 u16 auto_corr_max_cck_mrc;
606 u16 auto_corr_min_cck;
607 u16 auto_corr_min_cck_mrc;
609 u16 barker_corr_th_min;
610 u16 barker_corr_th_min_mrc;
615 #define KELVIN_TO_CELSIUS(x) ((x)-273)
616 #define CELSIUS_TO_KELVIN(x) ((x)+273)
620 * struct iwl_hw_params
621 * @max_txq_num: Max # Tx queues supported
622 * @dma_chnl_num: Number of Tx DMA/FIFO channels
623 * @scd_bc_tbls_size: size of scheduler byte count tables
624 * @tfd_size: TFD size
625 * @tx/rx_chains_num: Number of TX/RX chains
626 * @valid_tx/rx_ant: usable antennas
627 * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
628 * @max_rxq_log: Log-base-2 of max_rxq_size
629 * @rx_page_order: Rx buffer page order
630 * @rx_wrt_ptr_reg: FH{39}_RSCSR_CHNL0_WPTR
632 * @ht40_channel: is 40MHz width possible in band 2.4
633 * BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ)
634 * @sw_crypto: 0 for hw, 1 for sw
635 * @max_xxx_size: for ucode uses
636 * @ct_kill_threshold: temperature threshold
637 * @beacon_time_tsf_bits: number of valid tsf bits for beacon time
638 * @calib_init_cfg: setup initial calibrations for the hw
639 * @calib_rt_cfg: setup runtime calibrations for the hw
640 * @struct iwl_sensitivity_ranges: range of sensitivity values
642 struct iwl_hw_params {
645 u16 scd_bc_tbls_size;
657 u8 max_beacon_itrvl; /* in 1024 ms */
660 u32 ct_kill_threshold; /* value in hw-dependent units */
661 u32 ct_kill_exit_threshold; /* value in hw-dependent units */
662 /* for 1000, 6000 series and up */
663 u16 beacon_time_tsf_bits;
666 const struct iwl_sensitivity_ranges *sens;
670 /******************************************************************************
672 * Functions implemented in core module which are forward declared here
673 * for use by iwl-[4-5].c
675 * NOTE: The implementation of these functions are not hardware specific
676 * which is why they are in the core module files.
678 * Naming convention --
679 * iwl_ <-- Is part of iwlwifi
680 * iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
682 ****************************************************************************/
683 extern void iwl_update_chain_flags(struct iwl_priv *priv);
684 extern const u8 iwl_bcast_addr[ETH_ALEN];
685 extern int iwl_rxq_stop(struct iwl_priv *priv);
686 extern void iwl_txq_ctx_stop(struct iwl_priv *priv);
687 extern int iwl_queue_space(const struct iwl_queue *q);
688 static inline int iwl_queue_used(const struct iwl_queue *q, int i)
690 return q->write_ptr >= q->read_ptr ?
691 (i >= q->read_ptr && i < q->write_ptr) :
692 !(i < q->read_ptr && i >= q->write_ptr);
696 static inline u8 get_cmd_index(struct iwl_queue *q, u32 index, int is_huge)
699 * This is for init calibration result and scan command which
700 * required buffer > TFD_MAX_PAYLOAD_SIZE,
701 * the big buffer at end of command array
704 return q->n_window; /* must be power of 2 */
706 /* Otherwise, use normal size buffers */
707 return index & (q->n_window - 1);
717 #define IWL_OPERATION_MODE_AUTO 0
718 #define IWL_OPERATION_MODE_HT_ONLY 1
719 #define IWL_OPERATION_MODE_MIXED 2
720 #define IWL_OPERATION_MODE_20MHZ 3
722 #define IWL_TX_CRC_SIZE 4
723 #define IWL_TX_DELIMITER_SIZE 4
725 #define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
727 /* Sensitivity and chain noise calibration */
728 #define INITIALIZATION_VALUE 0xFFFF
729 #define IWL_CAL_NUM_BEACONS 16
730 #define MAXIMUM_ALLOWED_PATHLOSS 15
732 #define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
734 #define MAX_FA_OFDM 50
735 #define MIN_FA_OFDM 5
736 #define MAX_FA_CCK 50
739 #define AUTO_CORR_STEP_OFDM 1
741 #define AUTO_CORR_STEP_CCK 3
742 #define AUTO_CORR_MAX_TH_CCK 160
745 #define NRG_STEP_CCK 2
747 #define MAX_NUMBER_CCK_NO_FA 100
749 #define AUTO_CORR_CCK_MIN_VAL_DEF (125)
754 #define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
755 #define ALL_BAND_FILTER 0xFF00
756 #define IN_BAND_FILTER 0xFF
757 #define MIN_AVERAGE_NOISE_MAX_VALUE 0xFFFFFFFF
759 #define NRG_NUM_PREV_STAT_L 20
760 #define NUM_RX_CHAINS 3
762 enum iwlagn_false_alarm_state {
765 IWL_FA_GOOD_RANGE = 2,
768 enum iwlagn_chain_noise_state {
769 IWL_CHAIN_NOISE_ALIVE = 0, /* must be 0 */
770 IWL_CHAIN_NOISE_ACCUMULATE,
771 IWL_CHAIN_NOISE_CALIBRATED,
772 IWL_CHAIN_NOISE_DONE,
778 * defines the order in which results of initial calibrations
779 * should be sent to the runtime uCode
786 IWL_CALIB_TX_IQ_PERD,
788 IWL_CALIB_TEMP_OFFSET,
792 /* Opaque calibration results */
793 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 * iwl_switch_rxon: "channel switch" structure
990 * @ switch_in_progress: channel switch in progress
991 * @ channel: new channel
993 struct iwl_switch_rxon {
994 bool switch_in_progress;
999 * schedule the timer to wake up every UCODE_TRACE_PERIOD milliseconds
1000 * to perform continuous uCode event logging operation if enabled
1002 #define UCODE_TRACE_PERIOD (100)
1005 * iwl_event_log: current uCode event log position
1007 * @ucode_trace: enable/disable ucode continuous trace timer
1008 * @num_wraps: how many times the event buffer wraps
1009 * @next_entry: the entry just before the next one that uCode would fill
1010 * @non_wraps_count: counter for no wrap detected when dump ucode events
1011 * @wraps_once_count: counter for wrap once detected when dump ucode events
1012 * @wraps_more_count: counter for wrap more than once detected
1013 * when dump ucode events
1015 struct iwl_event_log {
1019 int non_wraps_count;
1020 int wraps_once_count;
1021 int wraps_more_count;
1025 * host interrupt timeout value
1026 * used with setting interrupt coalescing timer
1027 * the CSR_INT_COALESCING is an 8 bit register in 32-usec unit
1029 * default interrupt coalescing timer is 64 x 32 = 2048 usecs
1030 * default interrupt coalescing calibration timer is 16 x 32 = 512 usecs
1032 #define IWL_HOST_INT_TIMEOUT_MAX (0xFF)
1033 #define IWL_HOST_INT_TIMEOUT_DEF (0x40)
1034 #define IWL_HOST_INT_TIMEOUT_MIN (0x0)
1035 #define IWL_HOST_INT_CALIB_TIMEOUT_MAX (0xFF)
1036 #define IWL_HOST_INT_CALIB_TIMEOUT_DEF (0x10)
1037 #define IWL_HOST_INT_CALIB_TIMEOUT_MIN (0x0)
1040 * This is the threshold value of plcp error rate per 100mSecs. It is
1041 * used to set and check for the validity of plcp_delta.
1043 #define IWL_MAX_PLCP_ERR_THRESHOLD_MIN (1)
1044 #define IWL_MAX_PLCP_ERR_THRESHOLD_DEF (50)
1045 #define IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF (100)
1046 #define IWL_MAX_PLCP_ERR_EXT_LONG_THRESHOLD_DEF (200)
1047 #define IWL_MAX_PLCP_ERR_THRESHOLD_MAX (255)
1048 #define IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE (0)
1050 #define IWL_DELAY_NEXT_FORCE_RF_RESET (HZ*3)
1051 #define IWL_DELAY_NEXT_FORCE_FW_RELOAD (HZ*5)
1053 /* TX queue watchdog timeouts in mSecs */
1054 #define IWL_DEF_WD_TIMEOUT (2000)
1055 #define IWL_LONG_WD_TIMEOUT (10000)
1056 #define IWL_MAX_WD_TIMEOUT (120000)
1058 /* BT Antenna Coupling Threshold (dB) */
1059 #define IWL_BT_ANTENNA_COUPLING_THRESHOLD (35)
1061 /* Firmware reload counter and Timestamp */
1062 #define IWL_MIN_RELOAD_DURATION 1000 /* 1000 ms */
1063 #define IWL_MAX_CONTINUE_RELOAD_CNT 4
1069 IWL_MAX_FORCE_RESET,
1072 struct iwl_force_reset {
1073 int reset_request_count;
1074 int reset_success_count;
1075 int reset_reject_count;
1076 unsigned long reset_duration;
1077 unsigned long last_force_reset_jiffies;
1080 /* extend beacon time format bit shifting */
1083 * bits 31:22 - extended
1084 * bits 21:0 - interval
1086 #define IWLAGN_EXT_BEACON_TIME_POS 22
1089 * struct iwl_notification_wait - notification wait entry
1090 * @list: list head for global list
1091 * @fn: function called with the notification
1094 * This structure is not used directly, to wait for a
1095 * notification declare it on the stack, and call
1096 * iwlagn_init_notification_wait() with appropriate
1097 * parameters. Then do whatever will cause the ucode
1098 * to notify the driver, and to wait for that then
1099 * call iwlagn_wait_notification().
1101 * Each notification is one-shot. If at some point we
1102 * need to support multi-shot notifications (which
1103 * can't be allocated on the stack) we need to modify
1104 * the code for them.
1106 struct iwl_notification_wait {
1107 struct list_head list;
1109 void (*fn)(struct iwl_priv *priv, struct iwl_rx_packet *pkt);
1115 enum iwl_rxon_context_id {
1122 struct iwl_rxon_context {
1123 struct ieee80211_vif *vif;
1125 const u8 *ac_to_fifo;
1126 const u8 *ac_to_queue;
1130 * We could use the vif to indicate active, but we
1131 * also need it to be active during disabling when
1132 * we already removed the vif for type setting.
1134 bool always_active, is_active;
1136 bool ht_need_multiple_chains;
1138 enum iwl_rxon_context_id ctxid;
1140 u32 interface_modes, exclusive_interface_modes;
1141 u8 unused_devtype, ap_devtype, ibss_devtype, station_devtype;
1144 * We declare this const so it can only be
1145 * changed via explicit cast within the
1146 * routines that actually update the physical
1149 const struct iwl_rxon_cmd active;
1150 struct iwl_rxon_cmd staging;
1152 struct iwl_rxon_time_cmd timing;
1154 struct iwl_qos_info qos_data;
1156 u8 bcast_sta_id, ap_sta_id;
1158 u8 rxon_cmd, rxon_assoc_cmd, rxon_timing_cmd;
1162 struct iwl_wep_key wep_keys[WEP_KEYS_MAX];
1163 u8 key_mapping_keys;
1165 __le32 station_flags;
1168 bool non_gf_sta_present;
1170 bool enabled, is_40mhz;
1171 u8 extension_chan_offset;
1175 enum iwl_scan_type {
1177 IWL_SCAN_RADIO_RESET,
1183 /* ieee device used by generic ieee processing code */
1184 struct ieee80211_hw *hw;
1185 struct ieee80211_channel *ieee_channels;
1186 struct ieee80211_rate *ieee_rates;
1187 struct iwl_cfg *cfg;
1189 /* temporary frame storage list */
1190 struct list_head free_frames;
1193 enum ieee80211_band band;
1196 void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv,
1197 struct iwl_rx_mem_buffer *rxb);
1199 struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
1201 /* spectrum measurement report caching */
1202 struct iwl_spectrum_notification measure_report;
1203 u8 measurement_status;
1205 /* ucode beacon time */
1206 u32 ucode_beacon_time;
1207 int missed_beacon_threshold;
1209 /* track IBSS manager (last beacon) status */
1212 /* jiffies when last recovery from statistics was performed */
1213 unsigned long rx_statistics_jiffies;
1216 struct iwl_force_reset force_reset[IWL_MAX_FORCE_RESET];
1218 /* firmware reload counter and timestamp */
1219 unsigned long reload_jiffies;
1222 /* we allocate array of iwl_channel_info for NIC's valid channels.
1223 * Access via channel # using indirect index array */
1224 struct iwl_channel_info *channel_info; /* channel info array */
1225 u8 channel_count; /* # of channels */
1227 /* thermal calibration */
1228 s32 temperature; /* degrees Kelvin */
1229 s32 last_temperature;
1231 /* init calibration results */
1232 struct iwl_calib_result calib_results[IWL_CALIB_MAX];
1234 /* Scan related variables */
1235 unsigned long scan_start;
1236 unsigned long scan_start_tsf;
1238 enum ieee80211_band scan_band;
1239 struct cfg80211_scan_request *scan_request;
1240 struct ieee80211_vif *scan_vif;
1241 enum iwl_scan_type scan_type;
1242 u8 scan_tx_ant[IEEE80211_NUM_BANDS];
1246 spinlock_t lock; /* protect general shared data */
1247 spinlock_t hcmd_lock; /* protect hcmd */
1248 spinlock_t reg_lock; /* protect hw register access */
1251 /* basic pci-network driver stuff */
1252 struct pci_dev *pci_dev;
1254 /* pci hardware address support */
1255 void __iomem *hw_base;
1260 /* microcode/device supports multiple contexts */
1263 /* command queue number */
1266 /* max number of station keys */
1269 /* EEPROM MAC addresses */
1270 struct mac_address addresses[2];
1272 /* uCode images, save to reload in case of failure */
1273 int fw_index; /* firmware we're trying to load */
1274 u32 ucode_ver; /* version of ucode, copy of
1276 struct fw_desc ucode_code; /* runtime inst */
1277 struct fw_desc ucode_data; /* runtime data original */
1278 struct fw_desc ucode_init; /* initialization inst */
1279 struct fw_desc ucode_init_data; /* initialization data */
1280 enum ucode_type ucode_type;
1281 u8 ucode_write_complete; /* the image write is complete */
1282 char firmware_name[25];
1284 struct iwl_rxon_context contexts[NUM_IWL_RXON_CTX];
1286 struct iwl_switch_rxon switch_rxon;
1289 u32 error_event_table;
1290 u32 log_event_table;
1296 struct iwl_sensitivity_data sensitivity_data;
1297 struct iwl_chain_noise_data chain_noise_data;
1298 bool enhance_sensitivity_table;
1299 __le16 sensitivity_tbl[HD_TABLE_SIZE];
1300 __le16 enhance_sensitivity_tbl[ENHANCE_HD_TABLE_ENTRIES];
1302 struct iwl_ht_config current_ht_config;
1304 /* Rate scaling data */
1307 wait_queue_head_t wait_command_queue;
1309 int activity_timer_active;
1311 /* Rx and Tx DMA processing queues */
1312 struct iwl_rx_queue rxq;
1313 struct iwl_tx_queue *txq;
1314 unsigned long txq_ctx_active_msk;
1315 struct iwl_dma_ptr kw; /* keep warm address */
1316 struct iwl_dma_ptr scd_bc_tbls;
1318 u32 scd_base_addr; /* scheduler sram base address */
1320 unsigned long status;
1322 /* counts mgmt, ctl, and data packets */
1323 struct traffic_stats tx_stats;
1324 struct traffic_stats rx_stats;
1326 /* counts interrupts */
1327 struct isr_statistics isr_stats;
1329 struct iwl_power_mgr power_data;
1330 struct iwl_tt_mgmt thermal_throttle;
1332 /* station table variables */
1334 /* Note: if lock and sta_lock are needed, lock must be acquired first */
1335 spinlock_t sta_lock;
1337 struct iwl_station_entry stations[IWLAGN_STATION_COUNT];
1338 unsigned long ucode_key_table;
1340 /* queue refcounts */
1341 #define IWL_MAX_HW_QUEUES 32
1342 unsigned long queue_stopped[BITS_TO_LONGS(IWL_MAX_HW_QUEUES)];
1344 atomic_t queue_stop_count[4];
1346 /* Indication if ieee80211_ops->open has been called */
1349 u8 mac80211_registered;
1351 /* eeprom -- this is in the card's little endian byte order */
1353 int nvm_device_type;
1354 struct iwl_eeprom_calib_info *calib_info;
1356 enum nl80211_iftype iw_mode;
1358 /* Last Rx'd beacon timestamp */
1365 dma_addr_t ict_tbl_dma;
1366 dma_addr_t aligned_ict_tbl_dma;
1371 * reporting the number of tids has AGG on. 0 means
1376 struct iwl_rx_phy_res last_phy_res;
1377 bool last_phy_res_valid;
1379 struct completion firmware_loading_complete;
1381 u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr;
1382 u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr;
1385 * chain noise reset and gain commands are the
1386 * two extra calibration commands follows the standard
1387 * phy calibration commands
1389 u8 phy_calib_chain_noise_reset_cmd;
1390 u8 phy_calib_chain_noise_gain_cmd;
1392 struct iwl_notif_statistics statistics;
1393 struct iwl_bt_notif_statistics statistics_bt;
1394 /* counts reply_tx error */
1395 struct reply_tx_error_statistics reply_tx_stats;
1396 struct reply_agg_tx_error_statistics reply_agg_tx_stats;
1397 #ifdef CONFIG_IWLWIFI_DEBUGFS
1398 struct iwl_notif_statistics accum_statistics;
1399 struct iwl_notif_statistics delta_statistics;
1400 struct iwl_notif_statistics max_delta;
1401 struct iwl_bt_notif_statistics accum_statistics_bt;
1402 struct iwl_bt_notif_statistics delta_statistics_bt;
1403 struct iwl_bt_notif_statistics max_delta_bt;
1405 /* notification wait support */
1406 struct list_head notif_waits;
1407 spinlock_t notif_wait_lock;
1408 wait_queue_head_t notif_waitq;
1410 /* remain-on-channel offload support */
1411 struct ieee80211_channel *hw_roc_channel;
1412 struct delayed_work hw_roc_work;
1413 enum nl80211_channel_type hw_roc_chantype;
1414 int hw_roc_duration;
1417 struct sk_buff *offchan_tx_skb;
1418 int offchan_tx_timeout;
1419 struct ieee80211_channel *offchan_tx_chan;
1425 u8 bt_traffic_load, last_bt_traffic_load;
1426 bool bt_ch_announce;
1427 bool bt_full_concurrent;
1428 bool bt_ant_couple_ok;
1430 __le32 kill_ack_mask;
1431 __le32 kill_cts_mask;
1435 u16 dynamic_frag_thresh;
1436 u8 bt_ci_compliance;
1437 struct work_struct bt_traffic_change_work;
1439 struct iwl_hw_params hw_params;
1443 struct workqueue_struct *workqueue;
1445 struct work_struct restart;
1446 struct work_struct scan_completed;
1447 struct work_struct rx_replenish;
1448 struct work_struct abort_scan;
1450 struct work_struct beacon_update;
1451 struct iwl_rxon_context *beacon_ctx;
1452 struct sk_buff *beacon_skb;
1454 struct work_struct tt_work;
1455 struct work_struct ct_enter;
1456 struct work_struct ct_exit;
1457 struct work_struct start_internal_scan;
1458 struct work_struct tx_flush;
1459 struct work_struct bt_full_concurrency;
1460 struct work_struct bt_runtime_config;
1462 struct tasklet_struct irq_tasklet;
1464 struct delayed_work init_alive_start;
1465 struct delayed_work alive_start;
1466 struct delayed_work scan_check;
1469 s8 tx_power_user_lmt;
1470 s8 tx_power_device_lmt;
1471 s8 tx_power_lmt_in_half_dbm; /* max tx power in half-dBm format */
1475 #ifdef CONFIG_IWLWIFI_DEBUG
1476 /* debugging info */
1477 u32 debug_level; /* per device debugging will override global
1478 iwl_debug_level if set */
1479 #endif /* CONFIG_IWLWIFI_DEBUG */
1480 #ifdef CONFIG_IWLWIFI_DEBUGFS
1486 struct dentry *debugfs_dir;
1487 u32 dbgfs_sram_offset, dbgfs_sram_len;
1489 #endif /* CONFIG_IWLWIFI_DEBUGFS */
1491 struct work_struct txpower_work;
1492 u32 disable_sens_cal;
1493 u32 disable_chain_noise_cal;
1494 u32 disable_tx_power_cal;
1495 struct work_struct run_time_calib_work;
1496 struct timer_list statistics_periodic;
1497 struct timer_list ucode_trace;
1498 struct timer_list watchdog;
1501 struct iwl_event_log event_log;
1503 struct led_classdev led;
1504 unsigned long blink_on, blink_off;
1505 bool led_registered;
1508 static inline void iwl_txq_ctx_activate(struct iwl_priv *priv, int txq_id)
1510 set_bit(txq_id, &priv->txq_ctx_active_msk);
1513 static inline void iwl_txq_ctx_deactivate(struct iwl_priv *priv, int txq_id)
1515 clear_bit(txq_id, &priv->txq_ctx_active_msk);
1518 #ifdef CONFIG_IWLWIFI_DEBUG
1520 * iwl_get_debug_level: Return active debug level for device
1522 * Using sysfs it is possible to set per device debug level. This debug
1523 * level will be used if set, otherwise the global debug level which can be
1524 * set via module parameter is used.
1526 static inline u32 iwl_get_debug_level(struct iwl_priv *priv)
1528 if (priv->debug_level)
1529 return priv->debug_level;
1531 return iwl_debug_level;
1534 static inline u32 iwl_get_debug_level(struct iwl_priv *priv)
1536 return iwl_debug_level;
1541 static inline struct ieee80211_hdr *iwl_tx_queue_get_hdr(struct iwl_priv *priv,
1542 int txq_id, int idx)
1544 if (priv->txq[txq_id].txb[idx].skb)
1545 return (struct ieee80211_hdr *)priv->txq[txq_id].
1550 static inline struct iwl_rxon_context *
1551 iwl_rxon_ctx_from_vif(struct ieee80211_vif *vif)
1553 struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
1555 return vif_priv->ctx;
1558 #define for_each_context(priv, ctx) \
1559 for (ctx = &priv->contexts[IWL_RXON_CTX_BSS]; \
1560 ctx < &priv->contexts[NUM_IWL_RXON_CTX]; ctx++) \
1561 if (priv->valid_contexts & BIT(ctx->ctxid))
1563 static inline int iwl_is_associated(struct iwl_priv *priv,
1564 enum iwl_rxon_context_id ctxid)
1566 return (priv->contexts[ctxid].active.filter_flags &
1567 RXON_FILTER_ASSOC_MSK) ? 1 : 0;
1570 static inline int iwl_is_any_associated(struct iwl_priv *priv)
1572 return iwl_is_associated(priv, IWL_RXON_CTX_BSS);
1575 static inline int iwl_is_associated_ctx(struct iwl_rxon_context *ctx)
1577 return (ctx->active.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
1580 static inline int is_channel_valid(const struct iwl_channel_info *ch_info)
1582 if (ch_info == NULL)
1584 return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
1587 static inline int is_channel_radar(const struct iwl_channel_info *ch_info)
1589 return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
1592 static inline u8 is_channel_a_band(const struct iwl_channel_info *ch_info)
1594 return ch_info->band == IEEE80211_BAND_5GHZ;
1597 static inline u8 is_channel_bg_band(const struct iwl_channel_info *ch_info)
1599 return ch_info->band == IEEE80211_BAND_2GHZ;
1602 static inline int is_channel_passive(const struct iwl_channel_info *ch)
1604 return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
1607 static inline int is_channel_ibss(const struct iwl_channel_info *ch)
1609 return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
1612 static inline void __iwl_free_pages(struct iwl_priv *priv, struct page *page)
1614 __free_pages(page, priv->hw_params.rx_page_order);
1615 priv->alloc_rxb_page--;
1618 static inline void iwl_free_pages(struct iwl_priv *priv, unsigned long page)
1620 free_pages(page, priv->hw_params.rx_page_order);
1621 priv->alloc_rxb_page--;
1623 #endif /* __iwl_dev_h__ */