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1/******************************************************************************
2 *
3 * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
4 *
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.
8 *
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
12 * more details.
13 *
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
17 *
18 * The full GNU General Public License is included in this distribution in the
19 * file called LICENSE.
20 *
21 * Contact Information:
22 * Intel Linux Wireless <ilw@linux.intel.com>
23 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
24 *
25 *****************************************************************************/
26/*
27 * Please use this file (iwl-dev.h) for driver implementation definitions.
28 * Please use iwl-commands.h for uCode API definitions.
29 */
30
31#ifndef __iwl_dev_h__
32#define __iwl_dev_h__
33
34#include <linux/interrupt.h>
35#include <linux/pci.h> /* for struct pci_device_id */
36#include <linux/kernel.h>
37#include <linux/wait.h>
38#include <linux/leds.h>
39#include <net/ieee80211_radiotap.h>
40
41#include "iwl-eeprom.h"
42#include "iwl-csr.h"
43#include "iwl-prph.h"
44#include "iwl-fh.h"
45#include "iwl-debug.h"
46#include "iwl-agn-hw.h"
47#include "iwl-led.h"
48#include "iwl-power.h"
49#include "iwl-agn-rs.h"
50#include "iwl-agn-tt.h"
51#include "iwl-bus.h"
52#include "iwl-trans.h"
53
54#define DRV_NAME "iwlagn"
55
56struct iwl_tx_queue;
57
58/* CT-KILL constants */
59#define CT_KILL_THRESHOLD_LEGACY 110 /* in Celsius */
60#define CT_KILL_THRESHOLD 114 /* in Celsius */
61#define CT_KILL_EXIT_THRESHOLD 95 /* in Celsius */
62
63/* Default noise level to report when noise measurement is not available.
64 * This may be because we're:
65 * 1) Not associated (4965, no beacon statistics being sent to driver)
66 * 2) Scanning (noise measurement does not apply to associated channel)
67 * 3) Receiving CCK (3945 delivers noise info only for OFDM frames)
68 * Use default noise value of -127 ... this is below the range of measurable
69 * Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
70 * Also, -127 works better than 0 when averaging frames with/without
71 * noise info (e.g. averaging might be done in app); measured dBm values are
72 * always negative ... using a negative value as the default keeps all
73 * averages within an s8's (used in some apps) range of negative values. */
74#define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
75
76/*
77 * RTS threshold here is total size [2347] minus 4 FCS bytes
78 * Per spec:
79 * a value of 0 means RTS on all data/management packets
80 * a value > max MSDU size means no RTS
81 * else RTS for data/management frames where MPDU is larger
82 * than RTS value.
83 */
84#define DEFAULT_RTS_THRESHOLD 2347U
85#define MIN_RTS_THRESHOLD 0U
86#define MAX_RTS_THRESHOLD 2347U
87#define MAX_MSDU_SIZE 2304U
88#define MAX_MPDU_SIZE 2346U
89#define DEFAULT_BEACON_INTERVAL 200U
90#define DEFAULT_SHORT_RETRY_LIMIT 7U
91#define DEFAULT_LONG_RETRY_LIMIT 4U
92
93struct iwl_rx_mem_buffer {
94 dma_addr_t page_dma;
95 struct page *page;
96 struct list_head list;
97};
98
99#define rxb_addr(r) page_address(r->page)
100
101/* defined below */
102struct iwl_device_cmd;
103
104struct iwl_cmd_meta {
105 /* only for SYNC commands, iff the reply skb is wanted */
106 struct iwl_host_cmd *source;
107 /*
108 * only for ASYNC commands
109 * (which is somewhat stupid -- look at iwl-sta.c for instance
110 * which duplicates a bunch of code because the callback isn't
111 * invoked for SYNC commands, if it were and its result passed
112 * through it would be simpler...)
113 */
114 void (*callback)(struct iwl_priv *priv,
115 struct iwl_device_cmd *cmd,
116 struct iwl_rx_packet *pkt);
117
118 u32 flags;
119
120 DEFINE_DMA_UNMAP_ADDR(mapping);
121 DEFINE_DMA_UNMAP_LEN(len);
122};
123
124/*
125 * Generic queue structure
126 *
127 * Contains common data for Rx and Tx queues.
128 *
129 * Note the difference between n_bd and n_window: the hardware
130 * always assumes 256 descriptors, so n_bd is always 256 (unless
131 * there might be HW changes in the future). For the normal TX
132 * queues, n_window, which is the size of the software queue data
133 * is also 256; however, for the command queue, n_window is only
134 * 32 since we don't need so many commands pending. Since the HW
135 * still uses 256 BDs for DMA though, n_bd stays 256. As a result,
136 * the software buffers (in the variables @meta, @txb in struct
137 * iwl_tx_queue) only have 32 entries, while the HW buffers (@tfds
138 * in the same struct) have 256.
139 * This means that we end up with the following:
140 * HW entries: | 0 | ... | N * 32 | ... | N * 32 + 31 | ... | 255 |
141 * SW entries: | 0 | ... | 31 |
142 * where N is a number between 0 and 7. This means that the SW
143 * data is a window overlayed over the HW queue.
144 */
145struct iwl_queue {
146 int n_bd; /* number of BDs in this queue */
147 int write_ptr; /* 1-st empty entry (index) host_w*/
148 int read_ptr; /* last used entry (index) host_r*/
149 /* use for monitoring and recovering the stuck queue */
150 dma_addr_t dma_addr; /* physical addr for BD's */
151 int n_window; /* safe queue window */
152 u32 id;
153 int low_mark; /* low watermark, resume queue if free
154 * space more than this */
155 int high_mark; /* high watermark, stop queue if free
156 * space less than this */
157};
158
159/* One for each TFD */
160struct iwl_tx_info {
161 struct sk_buff *skb;
162 struct iwl_rxon_context *ctx;
163};
164
165/**
166 * struct iwl_tx_queue - Tx Queue for DMA
167 * @q: generic Rx/Tx queue descriptor
168 * @bd: base of circular buffer of TFDs
169 * @cmd: array of command/TX buffer pointers
170 * @meta: array of meta data for each command/tx buffer
171 * @dma_addr_cmd: physical address of cmd/tx buffer array
172 * @txb: array of per-TFD driver data
173 * @time_stamp: time (in jiffies) of last read_ptr change
174 * @need_update: indicates need to update read/write index
175 * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
176 *
177 * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
178 * descriptors) and required locking structures.
179 */
180#define TFD_TX_CMD_SLOTS 256
181#define TFD_CMD_SLOTS 32
182
183struct iwl_tx_queue {
184 struct iwl_queue q;
185 struct iwl_tfd *tfds;
186 struct iwl_device_cmd **cmd;
187 struct iwl_cmd_meta *meta;
188 struct iwl_tx_info *txb;
189 unsigned long time_stamp;
190 u8 need_update;
191 u8 sched_retry;
192 u8 active;
193 u8 swq_id;
194};
195
196#define IWL_NUM_SCAN_RATES (2)
197
198/*
199 * One for each channel, holds all channel setup data
200 * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
201 * with one another!
202 */
203struct iwl_channel_info {
204 struct iwl_eeprom_channel eeprom; /* EEPROM regulatory limit */
205 struct iwl_eeprom_channel ht40_eeprom; /* EEPROM regulatory limit for
206 * HT40 channel */
207
208 u8 channel; /* channel number */
209 u8 flags; /* flags copied from EEPROM */
210 s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
211 s8 curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) limit */
212 s8 min_power; /* always 0 */
213 s8 scan_power; /* (dBm) regul. eeprom, direct scans, any rate */
214
215 u8 group_index; /* 0-4, maps channel to group1/2/3/4/5 */
216 u8 band_index; /* 0-4, maps channel to band1/2/3/4/5 */
217 enum ieee80211_band band;
218
219 /* HT40 channel info */
220 s8 ht40_max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
221 u8 ht40_flags; /* flags copied from EEPROM */
222 u8 ht40_extension_channel; /* HT_IE_EXT_CHANNEL_* */
223};
224
225#define IWL_TX_FIFO_BK 0 /* shared */
226#define IWL_TX_FIFO_BE 1
227#define IWL_TX_FIFO_VI 2 /* shared */
228#define IWL_TX_FIFO_VO 3
229#define IWL_TX_FIFO_BK_IPAN IWL_TX_FIFO_BK
230#define IWL_TX_FIFO_BE_IPAN 4
231#define IWL_TX_FIFO_VI_IPAN IWL_TX_FIFO_VI
232#define IWL_TX_FIFO_VO_IPAN 5
233#define IWL_TX_FIFO_UNUSED -1
234
235/* Minimum number of queues. MAX_NUM is defined in hw specific files.
236 * Set the minimum to accommodate the 4 standard TX queues, 1 command
237 * queue, 2 (unused) HCCA queues, and 4 HT queues (one for each AC) */
238#define IWL_MIN_NUM_QUEUES 10
239
240/*
241 * Command queue depends on iPAN support.
242 */
243#define IWL_DEFAULT_CMD_QUEUE_NUM 4
244#define IWL_IPAN_CMD_QUEUE_NUM 9
245
246/*
247 * This queue number is required for proper operation
248 * because the ucode will stop/start the scheduler as
249 * required.
250 */
251#define IWL_IPAN_MCAST_QUEUE 8
252
253#define IEEE80211_DATA_LEN 2304
254#define IEEE80211_4ADDR_LEN 30
255#define IEEE80211_HLEN (IEEE80211_4ADDR_LEN)
256#define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
257
258
259#define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
260#define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
261#define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
262
263enum {
264 CMD_SYNC = 0,
265 CMD_ASYNC = BIT(0),
266 CMD_WANT_SKB = BIT(1),
267 CMD_ON_DEMAND = BIT(2),
268};
269
270#define DEF_CMD_PAYLOAD_SIZE 320
271
272/**
273 * struct iwl_device_cmd
274 *
275 * For allocation of the command and tx queues, this establishes the overall
276 * size of the largest command we send to uCode, except for commands that
277 * aren't fully copied and use other TFD space.
278 */
279struct iwl_device_cmd {
280 struct iwl_cmd_header hdr; /* uCode API */
281 union {
282 u32 flags;
283 u8 val8;
284 u16 val16;
285 u32 val32;
286 struct iwl_tx_cmd tx;
287 struct iwl6000_channel_switch_cmd chswitch;
288 u8 payload[DEF_CMD_PAYLOAD_SIZE];
289 } __packed cmd;
290} __packed;
291
292#define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_device_cmd))
293
294#define IWL_MAX_CMD_TFDS 2
295
296enum iwl_hcmd_dataflag {
297 IWL_HCMD_DFL_NOCOPY = BIT(0),
298};
299
300/**
301 * struct iwl_host_cmd - Host command to the uCode
302 * @data: array of chunks that composes the data of the host command
303 * @reply_page: pointer to the page that holds the response to the host command
304 * @callback:
305 * @flags: can be CMD_* note CMD_WANT_SKB is incompatible withe CMD_ASYNC
306 * @len: array of the lenths of the chunks in data
307 * @dataflags:
308 * @id: id of the host command
309 */
310struct iwl_host_cmd {
311 const void *data[IWL_MAX_CMD_TFDS];
312 unsigned long reply_page;
313 void (*callback)(struct iwl_priv *priv,
314 struct iwl_device_cmd *cmd,
315 struct iwl_rx_packet *pkt);
316 u32 flags;
317 u16 len[IWL_MAX_CMD_TFDS];
318 u8 dataflags[IWL_MAX_CMD_TFDS];
319 u8 id;
320};
321
322#define SUP_RATE_11A_MAX_NUM_CHANNELS 8
323#define SUP_RATE_11B_MAX_NUM_CHANNELS 4
324#define SUP_RATE_11G_MAX_NUM_CHANNELS 12
325
326/**
327 * struct iwl_rx_queue - Rx queue
328 * @bd: driver's pointer to buffer of receive buffer descriptors (rbd)
329 * @bd_dma: bus address of buffer of receive buffer descriptors (rbd)
330 * @read: Shared index to newest available Rx buffer
331 * @write: Shared index to oldest written Rx packet
332 * @free_count: Number of pre-allocated buffers in rx_free
333 * @rx_free: list of free SKBs for use
334 * @rx_used: List of Rx buffers with no SKB
335 * @need_update: flag to indicate we need to update read/write index
336 * @rb_stts: driver's pointer to receive buffer status
337 * @rb_stts_dma: bus address of receive buffer status
338 *
339 * NOTE: rx_free and rx_used are used as a FIFO for iwl_rx_mem_buffers
340 */
341struct iwl_rx_queue {
342 __le32 *bd;
343 dma_addr_t bd_dma;
344 struct iwl_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
345 struct iwl_rx_mem_buffer *queue[RX_QUEUE_SIZE];
346 u32 read;
347 u32 write;
348 u32 free_count;
349 u32 write_actual;
350 struct list_head rx_free;
351 struct list_head rx_used;
352 int need_update;
353 struct iwl_rb_status *rb_stts;
354 dma_addr_t rb_stts_dma;
355 spinlock_t lock;
356};
357
358#define IWL_SUPPORTED_RATES_IE_LEN 8
359
360#define MAX_TID_COUNT 9
361
362#define IWL_INVALID_RATE 0xFF
363#define IWL_INVALID_VALUE -1
364
365/**
366 * struct iwl_ht_agg -- aggregation status while waiting for block-ack
367 * @txq_id: Tx queue used for Tx attempt
368 * @frame_count: # frames attempted by Tx command
369 * @wait_for_ba: Expect block-ack before next Tx reply
370 * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window
371 * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window
372 * @bitmap1: High order, one bit for each frame pending ACK in Tx window
373 * @rate_n_flags: Rate at which Tx was attempted
374 *
375 * If REPLY_TX indicates that aggregation was attempted, driver must wait
376 * for block ack (REPLY_COMPRESSED_BA). This struct stores tx reply info
377 * until block ack arrives.
378 */
379struct iwl_ht_agg {
380 u16 txq_id;
381 u16 frame_count;
382 u16 wait_for_ba;
383 u16 start_idx;
384 u64 bitmap;
385 u32 rate_n_flags;
386#define IWL_AGG_OFF 0
387#define IWL_AGG_ON 1
388#define IWL_EMPTYING_HW_QUEUE_ADDBA 2
389#define IWL_EMPTYING_HW_QUEUE_DELBA 3
390 u8 state;
391 u8 tx_fifo;
392};
393
394
395struct iwl_tid_data {
396 u16 seq_number; /* agn only */
397 u16 tfds_in_queue;
398 struct iwl_ht_agg agg;
399};
400
401union iwl_ht_rate_supp {
402 u16 rates;
403 struct {
404 u8 siso_rate;
405 u8 mimo_rate;
406 };
407};
408
409#define CFG_HT_RX_AMPDU_FACTOR_8K (0x0)
410#define CFG_HT_RX_AMPDU_FACTOR_16K (0x1)
411#define CFG_HT_RX_AMPDU_FACTOR_32K (0x2)
412#define CFG_HT_RX_AMPDU_FACTOR_64K (0x3)
413#define CFG_HT_RX_AMPDU_FACTOR_DEF CFG_HT_RX_AMPDU_FACTOR_64K
414#define CFG_HT_RX_AMPDU_FACTOR_MAX CFG_HT_RX_AMPDU_FACTOR_64K
415#define CFG_HT_RX_AMPDU_FACTOR_MIN CFG_HT_RX_AMPDU_FACTOR_8K
416
417/*
418 * Maximal MPDU density for TX aggregation
419 * 4 - 2us density
420 * 5 - 4us density
421 * 6 - 8us density
422 * 7 - 16us density
423 */
424#define CFG_HT_MPDU_DENSITY_2USEC (0x4)
425#define CFG_HT_MPDU_DENSITY_4USEC (0x5)
426#define CFG_HT_MPDU_DENSITY_8USEC (0x6)
427#define CFG_HT_MPDU_DENSITY_16USEC (0x7)
428#define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_4USEC
429#define CFG_HT_MPDU_DENSITY_MAX CFG_HT_MPDU_DENSITY_16USEC
430#define CFG_HT_MPDU_DENSITY_MIN (0x1)
431
432struct iwl_ht_config {
433 bool single_chain_sufficient;
434 enum ieee80211_smps_mode smps; /* current smps mode */
435};
436
437/* QoS structures */
438struct iwl_qos_info {
439 int qos_active;
440 struct iwl_qosparam_cmd def_qos_parm;
441};
442
443/*
444 * Structure should be accessed with sta_lock held. When station addition
445 * is in progress (IWL_STA_UCODE_INPROGRESS) it is possible to access only
446 * the commands (iwl_addsta_cmd and iwl_link_quality_cmd) without sta_lock
447 * held.
448 */
449struct iwl_station_entry {
450 struct iwl_addsta_cmd sta;
451 struct iwl_tid_data tid[MAX_TID_COUNT];
452 u8 used, ctxid;
453 struct iwl_link_quality_cmd *lq;
454};
455
456struct iwl_station_priv_common {
457 struct iwl_rxon_context *ctx;
458 u8 sta_id;
459};
460
461/*
462 * iwl_station_priv: Driver's private station information
463 *
464 * When mac80211 creates a station it reserves some space (hw->sta_data_size)
465 * in the structure for use by driver. This structure is places in that
466 * space.
467 */
468struct iwl_station_priv {
469 struct iwl_station_priv_common common;
470 struct iwl_lq_sta lq_sta;
471 atomic_t pending_frames;
472 bool client;
473 bool asleep;
474 u8 max_agg_bufsize;
475};
476
477/**
478 * struct iwl_vif_priv - driver's private per-interface information
479 *
480 * When mac80211 allocates a virtual interface, it can allocate
481 * space for us to put data into.
482 */
483struct iwl_vif_priv {
484 struct iwl_rxon_context *ctx;
485 u8 ibss_bssid_sta_id;
486};
487
488/* one for each uCode image (inst/data, boot/init/runtime) */
489struct fw_desc {
490 void *v_addr; /* access by driver */
491 dma_addr_t p_addr; /* access by card's busmaster DMA */
492 u32 len; /* bytes */
493};
494
495struct fw_img {
496 struct fw_desc code, data;
497};
498
499/* v1/v2 uCode file layout */
500struct iwl_ucode_header {
501 __le32 ver; /* major/minor/API/serial */
502 union {
503 struct {
504 __le32 inst_size; /* bytes of runtime code */
505 __le32 data_size; /* bytes of runtime data */
506 __le32 init_size; /* bytes of init code */
507 __le32 init_data_size; /* bytes of init data */
508 __le32 boot_size; /* bytes of bootstrap code */
509 u8 data[0]; /* in same order as sizes */
510 } v1;
511 struct {
512 __le32 build; /* build number */
513 __le32 inst_size; /* bytes of runtime code */
514 __le32 data_size; /* bytes of runtime data */
515 __le32 init_size; /* bytes of init code */
516 __le32 init_data_size; /* bytes of init data */
517 __le32 boot_size; /* bytes of bootstrap code */
518 u8 data[0]; /* in same order as sizes */
519 } v2;
520 } u;
521};
522
523/*
524 * new TLV uCode file layout
525 *
526 * The new TLV file format contains TLVs, that each specify
527 * some piece of data. To facilitate "groups", for example
528 * different instruction image with different capabilities,
529 * bundled with the same init image, an alternative mechanism
530 * is provided:
531 * When the alternative field is 0, that means that the item
532 * is always valid. When it is non-zero, then it is only
533 * valid in conjunction with items of the same alternative,
534 * in which case the driver (user) selects one alternative
535 * to use.
536 */
537
538enum iwl_ucode_tlv_type {
539 IWL_UCODE_TLV_INVALID = 0, /* unused */
540 IWL_UCODE_TLV_INST = 1,
541 IWL_UCODE_TLV_DATA = 2,
542 IWL_UCODE_TLV_INIT = 3,
543 IWL_UCODE_TLV_INIT_DATA = 4,
544 IWL_UCODE_TLV_BOOT = 5,
545 IWL_UCODE_TLV_PROBE_MAX_LEN = 6, /* a u32 value */
546 IWL_UCODE_TLV_PAN = 7,
547 IWL_UCODE_TLV_RUNT_EVTLOG_PTR = 8,
548 IWL_UCODE_TLV_RUNT_EVTLOG_SIZE = 9,
549 IWL_UCODE_TLV_RUNT_ERRLOG_PTR = 10,
550 IWL_UCODE_TLV_INIT_EVTLOG_PTR = 11,
551 IWL_UCODE_TLV_INIT_EVTLOG_SIZE = 12,
552 IWL_UCODE_TLV_INIT_ERRLOG_PTR = 13,
553 IWL_UCODE_TLV_ENHANCE_SENS_TBL = 14,
554 IWL_UCODE_TLV_PHY_CALIBRATION_SIZE = 15,
555 IWL_UCODE_TLV_WOWLAN_INST = 16,
556 IWL_UCODE_TLV_WOWLAN_DATA = 17,
557 IWL_UCODE_TLV_FLAGS = 18,
558};
559
560/**
561 * enum iwl_ucode_tlv_flag - ucode API flags
562 * @IWL_UCODE_TLV_FLAGS_PAN: This is PAN capable microcode; this previously
563 * was a separate TLV but moved here to save space.
564 * @IWL_UCODE_TLV_FLAGS_NEWSCAN: new uCode scan behaviour on hidden SSID,
565 * treats good CRC threshold as a boolean
566 * @IWL_UCODE_TLV_FLAGS_MFP: This uCode image supports MFP (802.11w).
567 */
568enum iwl_ucode_tlv_flag {
569 IWL_UCODE_TLV_FLAGS_PAN = BIT(0),
570 IWL_UCODE_TLV_FLAGS_NEWSCAN = BIT(1),
571 IWL_UCODE_TLV_FLAGS_MFP = BIT(2),
572};
573
574struct iwl_ucode_tlv {
575 __le16 type; /* see above */
576 __le16 alternative; /* see comment */
577 __le32 length; /* not including type/length fields */
578 u8 data[0];
579} __packed;
580
581#define IWL_TLV_UCODE_MAGIC 0x0a4c5749
582
583struct iwl_tlv_ucode_header {
584 /*
585 * The TLV style ucode header is distinguished from
586 * the v1/v2 style header by first four bytes being
587 * zero, as such is an invalid combination of
588 * major/minor/API/serial versions.
589 */
590 __le32 zero;
591 __le32 magic;
592 u8 human_readable[64];
593 __le32 ver; /* major/minor/API/serial */
594 __le32 build;
595 __le64 alternatives; /* bitmask of valid alternatives */
596 /*
597 * The data contained herein has a TLV layout,
598 * see above for the TLV header and types.
599 * Note that each TLV is padded to a length
600 * that is a multiple of 4 for alignment.
601 */
602 u8 data[0];
603};
604
605struct iwl_sensitivity_ranges {
606 u16 min_nrg_cck;
607 u16 max_nrg_cck;
608
609 u16 nrg_th_cck;
610 u16 nrg_th_ofdm;
611
612 u16 auto_corr_min_ofdm;
613 u16 auto_corr_min_ofdm_mrc;
614 u16 auto_corr_min_ofdm_x1;
615 u16 auto_corr_min_ofdm_mrc_x1;
616
617 u16 auto_corr_max_ofdm;
618 u16 auto_corr_max_ofdm_mrc;
619 u16 auto_corr_max_ofdm_x1;
620 u16 auto_corr_max_ofdm_mrc_x1;
621
622 u16 auto_corr_max_cck;
623 u16 auto_corr_max_cck_mrc;
624 u16 auto_corr_min_cck;
625 u16 auto_corr_min_cck_mrc;
626
627 u16 barker_corr_th_min;
628 u16 barker_corr_th_min_mrc;
629 u16 nrg_th_cca;
630};
631
632
633#define KELVIN_TO_CELSIUS(x) ((x)-273)
634#define CELSIUS_TO_KELVIN(x) ((x)+273)
635
636
637/**
638 * struct iwl_hw_params
639 * @max_txq_num: Max # Tx queues supported
640 * @scd_bc_tbls_size: size of scheduler byte count tables
641 * @tfd_size: TFD size
642 * @tx/rx_chains_num: Number of TX/RX chains
643 * @valid_tx/rx_ant: usable antennas
644 * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
645 * @max_rxq_log: Log-base-2 of max_rxq_size
646 * @rx_page_order: Rx buffer page order
647 * @rx_wrt_ptr_reg: FH{39}_RSCSR_CHNL0_WPTR
648 * @max_stations:
649 * @ht40_channel: is 40MHz width possible in band 2.4
650 * BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ)
651 * @sw_crypto: 0 for hw, 1 for sw
652 * @max_xxx_size: for ucode uses
653 * @ct_kill_threshold: temperature threshold
654 * @beacon_time_tsf_bits: number of valid tsf bits for beacon time
655 * @calib_init_cfg: setup initial calibrations for the hw
656 * @calib_rt_cfg: setup runtime calibrations for the hw
657 * @struct iwl_sensitivity_ranges: range of sensitivity values
658 */
659struct iwl_hw_params {
660 u8 max_txq_num;
661 u16 scd_bc_tbls_size;
662 u32 tfd_size;
663 u8 tx_chains_num;
664 u8 rx_chains_num;
665 u8 valid_tx_ant;
666 u8 valid_rx_ant;
667 u16 max_rxq_size;
668 u16 max_rxq_log;
669 u32 rx_page_order;
670 u8 max_stations;
671 u8 ht40_channel;
672 u8 max_beacon_itrvl; /* in 1024 ms */
673 u32 max_inst_size;
674 u32 max_data_size;
675 u32 ct_kill_threshold; /* value in hw-dependent units */
676 u32 ct_kill_exit_threshold; /* value in hw-dependent units */
677 /* for 1000, 6000 series and up */
678 u16 beacon_time_tsf_bits;
679 u32 calib_init_cfg;
680 u32 calib_rt_cfg;
681 const struct iwl_sensitivity_ranges *sens;
682};
683
684
685/******************************************************************************
686 *
687 * Functions implemented in core module which are forward declared here
688 * for use by iwl-[4-5].c
689 *
690 * NOTE: The implementation of these functions are not hardware specific
691 * which is why they are in the core module files.
692 *
693 * Naming convention --
694 * iwl_ <-- Is part of iwlwifi
695 * iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
696 *
697 ****************************************************************************/
698extern void iwl_update_chain_flags(struct iwl_priv *priv);
699extern const u8 iwl_bcast_addr[ETH_ALEN];
700extern int iwl_queue_space(const struct iwl_queue *q);
701static inline int iwl_queue_used(const struct iwl_queue *q, int i)
702{
703 return q->write_ptr >= q->read_ptr ?
704 (i >= q->read_ptr && i < q->write_ptr) :
705 !(i < q->read_ptr && i >= q->write_ptr);
706}
707
708
709static inline u8 get_cmd_index(struct iwl_queue *q, u32 index)
710{
711 return index & (q->n_window - 1);
712}
713
714
715struct iwl_dma_ptr {
716 dma_addr_t dma;
717 void *addr;
718 size_t size;
719};
720
721#define IWL_OPERATION_MODE_AUTO 0
722#define IWL_OPERATION_MODE_HT_ONLY 1
723#define IWL_OPERATION_MODE_MIXED 2
724#define IWL_OPERATION_MODE_20MHZ 3
725
726#define IWL_TX_CRC_SIZE 4
727#define IWL_TX_DELIMITER_SIZE 4
728
729#define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
730
731/* Sensitivity and chain noise calibration */
732#define INITIALIZATION_VALUE 0xFFFF
733#define IWL_CAL_NUM_BEACONS 16
734#define MAXIMUM_ALLOWED_PATHLOSS 15
735
736#define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
737
738#define MAX_FA_OFDM 50
739#define MIN_FA_OFDM 5
740#define MAX_FA_CCK 50
741#define MIN_FA_CCK 5
742
743#define AUTO_CORR_STEP_OFDM 1
744
745#define AUTO_CORR_STEP_CCK 3
746#define AUTO_CORR_MAX_TH_CCK 160
747
748#define NRG_DIFF 2
749#define NRG_STEP_CCK 2
750#define NRG_MARGIN 8
751#define MAX_NUMBER_CCK_NO_FA 100
752
753#define AUTO_CORR_CCK_MIN_VAL_DEF (125)
754
755#define CHAIN_A 0
756#define CHAIN_B 1
757#define CHAIN_C 2
758#define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
759#define ALL_BAND_FILTER 0xFF00
760#define IN_BAND_FILTER 0xFF
761#define MIN_AVERAGE_NOISE_MAX_VALUE 0xFFFFFFFF
762
763#define NRG_NUM_PREV_STAT_L 20
764#define NUM_RX_CHAINS 3
765
766enum iwlagn_false_alarm_state {
767 IWL_FA_TOO_MANY = 0,
768 IWL_FA_TOO_FEW = 1,
769 IWL_FA_GOOD_RANGE = 2,
770};
771
772enum iwlagn_chain_noise_state {
773 IWL_CHAIN_NOISE_ALIVE = 0, /* must be 0 */
774 IWL_CHAIN_NOISE_ACCUMULATE,
775 IWL_CHAIN_NOISE_CALIBRATED,
776 IWL_CHAIN_NOISE_DONE,
777};
778
779
780/*
781 * enum iwl_calib
782 * defines the order in which results of initial calibrations
783 * should be sent to the runtime uCode
784 */
785enum iwl_calib {
786 IWL_CALIB_XTAL,
787 IWL_CALIB_DC,
788 IWL_CALIB_LO,
789 IWL_CALIB_TX_IQ,
790 IWL_CALIB_TX_IQ_PERD,
791 IWL_CALIB_BASE_BAND,
792 IWL_CALIB_TEMP_OFFSET,
793 IWL_CALIB_MAX
794};
795
796/* Opaque calibration results */
797struct iwl_calib_result {
798 void *buf;
799 size_t buf_len;
800};
801
802/* Sensitivity calib data */
803struct iwl_sensitivity_data {
804 u32 auto_corr_ofdm;
805 u32 auto_corr_ofdm_mrc;
806 u32 auto_corr_ofdm_x1;
807 u32 auto_corr_ofdm_mrc_x1;
808 u32 auto_corr_cck;
809 u32 auto_corr_cck_mrc;
810
811 u32 last_bad_plcp_cnt_ofdm;
812 u32 last_fa_cnt_ofdm;
813 u32 last_bad_plcp_cnt_cck;
814 u32 last_fa_cnt_cck;
815
816 u32 nrg_curr_state;
817 u32 nrg_prev_state;
818 u32 nrg_value[10];
819 u8 nrg_silence_rssi[NRG_NUM_PREV_STAT_L];
820 u32 nrg_silence_ref;
821 u32 nrg_energy_idx;
822 u32 nrg_silence_idx;
823 u32 nrg_th_cck;
824 s32 nrg_auto_corr_silence_diff;
825 u32 num_in_cck_no_fa;
826 u32 nrg_th_ofdm;
827
828 u16 barker_corr_th_min;
829 u16 barker_corr_th_min_mrc;
830 u16 nrg_th_cca;
831};
832
833/* Chain noise (differential Rx gain) calib data */
834struct iwl_chain_noise_data {
835 u32 active_chains;
836 u32 chain_noise_a;
837 u32 chain_noise_b;
838 u32 chain_noise_c;
839 u32 chain_signal_a;
840 u32 chain_signal_b;
841 u32 chain_signal_c;
842 u16 beacon_count;
843 u8 disconn_array[NUM_RX_CHAINS];
844 u8 delta_gain_code[NUM_RX_CHAINS];
845 u8 radio_write;
846 u8 state;
847};
848
849#define EEPROM_SEM_TIMEOUT 10 /* milliseconds */
850#define EEPROM_SEM_RETRY_LIMIT 1000 /* number of attempts (not time) */
851
852#define IWL_TRAFFIC_ENTRIES (256)
853#define IWL_TRAFFIC_ENTRY_SIZE (64)
854
855enum {
856 MEASUREMENT_READY = (1 << 0),
857 MEASUREMENT_ACTIVE = (1 << 1),
858};
859
860enum iwl_nvm_type {
861 NVM_DEVICE_TYPE_EEPROM = 0,
862 NVM_DEVICE_TYPE_OTP,
863};
864
865/*
866 * Two types of OTP memory access modes
867 * IWL_OTP_ACCESS_ABSOLUTE - absolute address mode,
868 * based on physical memory addressing
869 * IWL_OTP_ACCESS_RELATIVE - relative address mode,
870 * based on logical memory addressing
871 */
872enum iwl_access_mode {
873 IWL_OTP_ACCESS_ABSOLUTE,
874 IWL_OTP_ACCESS_RELATIVE,
875};
876
877/**
878 * enum iwl_pa_type - Power Amplifier type
879 * @IWL_PA_SYSTEM: based on uCode configuration
880 * @IWL_PA_INTERNAL: use Internal only
881 */
882enum iwl_pa_type {
883 IWL_PA_SYSTEM = 0,
884 IWL_PA_INTERNAL = 1,
885};
886
887/* interrupt statistics */
888struct isr_statistics {
889 u32 hw;
890 u32 sw;
891 u32 err_code;
892 u32 sch;
893 u32 alive;
894 u32 rfkill;
895 u32 ctkill;
896 u32 wakeup;
897 u32 rx;
898 u32 rx_handlers[REPLY_MAX];
899 u32 tx;
900 u32 unhandled;
901};
902
903/* reply_tx_statistics (for _agn devices) */
904struct reply_tx_error_statistics {
905 u32 pp_delay;
906 u32 pp_few_bytes;
907 u32 pp_bt_prio;
908 u32 pp_quiet_period;
909 u32 pp_calc_ttak;
910 u32 int_crossed_retry;
911 u32 short_limit;
912 u32 long_limit;
913 u32 fifo_underrun;
914 u32 drain_flow;
915 u32 rfkill_flush;
916 u32 life_expire;
917 u32 dest_ps;
918 u32 host_abort;
919 u32 bt_retry;
920 u32 sta_invalid;
921 u32 frag_drop;
922 u32 tid_disable;
923 u32 fifo_flush;
924 u32 insuff_cf_poll;
925 u32 fail_hw_drop;
926 u32 sta_color_mismatch;
927 u32 unknown;
928};
929
930/* reply_agg_tx_statistics (for _agn devices) */
931struct reply_agg_tx_error_statistics {
932 u32 underrun;
933 u32 bt_prio;
934 u32 few_bytes;
935 u32 abort;
936 u32 last_sent_ttl;
937 u32 last_sent_try;
938 u32 last_sent_bt_kill;
939 u32 scd_query;
940 u32 bad_crc32;
941 u32 response;
942 u32 dump_tx;
943 u32 delay_tx;
944 u32 unknown;
945};
946
947/* management statistics */
948enum iwl_mgmt_stats {
949 MANAGEMENT_ASSOC_REQ = 0,
950 MANAGEMENT_ASSOC_RESP,
951 MANAGEMENT_REASSOC_REQ,
952 MANAGEMENT_REASSOC_RESP,
953 MANAGEMENT_PROBE_REQ,
954 MANAGEMENT_PROBE_RESP,
955 MANAGEMENT_BEACON,
956 MANAGEMENT_ATIM,
957 MANAGEMENT_DISASSOC,
958 MANAGEMENT_AUTH,
959 MANAGEMENT_DEAUTH,
960 MANAGEMENT_ACTION,
961 MANAGEMENT_MAX,
962};
963/* control statistics */
964enum iwl_ctrl_stats {
965 CONTROL_BACK_REQ = 0,
966 CONTROL_BACK,
967 CONTROL_PSPOLL,
968 CONTROL_RTS,
969 CONTROL_CTS,
970 CONTROL_ACK,
971 CONTROL_CFEND,
972 CONTROL_CFENDACK,
973 CONTROL_MAX,
974};
975
976struct traffic_stats {
977#ifdef CONFIG_IWLWIFI_DEBUGFS
978 u32 mgmt[MANAGEMENT_MAX];
979 u32 ctrl[CONTROL_MAX];
980 u32 data_cnt;
981 u64 data_bytes;
982#endif
983};
984
985/*
986 * schedule the timer to wake up every UCODE_TRACE_PERIOD milliseconds
987 * to perform continuous uCode event logging operation if enabled
988 */
989#define UCODE_TRACE_PERIOD (100)
990
991/*
992 * iwl_event_log: current uCode event log position
993 *
994 * @ucode_trace: enable/disable ucode continuous trace timer
995 * @num_wraps: how many times the event buffer wraps
996 * @next_entry: the entry just before the next one that uCode would fill
997 * @non_wraps_count: counter for no wrap detected when dump ucode events
998 * @wraps_once_count: counter for wrap once detected when dump ucode events
999 * @wraps_more_count: counter for wrap more than once detected
1000 * when dump ucode events
1001 */
1002struct iwl_event_log {
1003 bool ucode_trace;
1004 u32 num_wraps;
1005 u32 next_entry;
1006 int non_wraps_count;
1007 int wraps_once_count;
1008 int wraps_more_count;
1009};
1010
1011/*
1012 * host interrupt timeout value
1013 * used with setting interrupt coalescing timer
1014 * the CSR_INT_COALESCING is an 8 bit register in 32-usec unit
1015 *
1016 * default interrupt coalescing timer is 64 x 32 = 2048 usecs
1017 * default interrupt coalescing calibration timer is 16 x 32 = 512 usecs
1018 */
1019#define IWL_HOST_INT_TIMEOUT_MAX (0xFF)
1020#define IWL_HOST_INT_TIMEOUT_DEF (0x40)
1021#define IWL_HOST_INT_TIMEOUT_MIN (0x0)
1022#define IWL_HOST_INT_CALIB_TIMEOUT_MAX (0xFF)
1023#define IWL_HOST_INT_CALIB_TIMEOUT_DEF (0x10)
1024#define IWL_HOST_INT_CALIB_TIMEOUT_MIN (0x0)
1025
1026/*
1027 * This is the threshold value of plcp error rate per 100mSecs. It is
1028 * used to set and check for the validity of plcp_delta.
1029 */
1030#define IWL_MAX_PLCP_ERR_THRESHOLD_MIN (1)
1031#define IWL_MAX_PLCP_ERR_THRESHOLD_DEF (50)
1032#define IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF (100)
1033#define IWL_MAX_PLCP_ERR_EXT_LONG_THRESHOLD_DEF (200)
1034#define IWL_MAX_PLCP_ERR_THRESHOLD_MAX (255)
1035#define IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE (0)
1036
1037#define IWL_DELAY_NEXT_FORCE_RF_RESET (HZ*3)
1038#define IWL_DELAY_NEXT_FORCE_FW_RELOAD (HZ*5)
1039
1040/* TX queue watchdog timeouts in mSecs */
1041#define IWL_DEF_WD_TIMEOUT (2000)
1042#define IWL_LONG_WD_TIMEOUT (10000)
1043#define IWL_MAX_WD_TIMEOUT (120000)
1044
1045/* BT Antenna Coupling Threshold (dB) */
1046#define IWL_BT_ANTENNA_COUPLING_THRESHOLD (35)
1047
1048/* Firmware reload counter and Timestamp */
1049#define IWL_MIN_RELOAD_DURATION 1000 /* 1000 ms */
1050#define IWL_MAX_CONTINUE_RELOAD_CNT 4
1051
1052
1053enum iwl_reset {
1054 IWL_RF_RESET = 0,
1055 IWL_FW_RESET,
1056 IWL_MAX_FORCE_RESET,
1057};
1058
1059struct iwl_force_reset {
1060 int reset_request_count;
1061 int reset_success_count;
1062 int reset_reject_count;
1063 unsigned long reset_duration;
1064 unsigned long last_force_reset_jiffies;
1065};
1066
1067/* extend beacon time format bit shifting */
1068/*
1069 * for _agn devices
1070 * bits 31:22 - extended
1071 * bits 21:0 - interval
1072 */
1073#define IWLAGN_EXT_BEACON_TIME_POS 22
1074
1075/**
1076 * struct iwl_notification_wait - notification wait entry
1077 * @list: list head for global list
1078 * @fn: function called with the notification
1079 * @cmd: command ID
1080 *
1081 * This structure is not used directly, to wait for a
1082 * notification declare it on the stack, and call
1083 * iwlagn_init_notification_wait() with appropriate
1084 * parameters. Then do whatever will cause the ucode
1085 * to notify the driver, and to wait for that then
1086 * call iwlagn_wait_notification().
1087 *
1088 * Each notification is one-shot. If at some point we
1089 * need to support multi-shot notifications (which
1090 * can't be allocated on the stack) we need to modify
1091 * the code for them.
1092 */
1093struct iwl_notification_wait {
1094 struct list_head list;
1095
1096 void (*fn)(struct iwl_priv *priv, struct iwl_rx_packet *pkt,
1097 void *data);
1098 void *fn_data;
1099
1100 u8 cmd;
1101 bool triggered, aborted;
1102};
1103
1104enum iwl_rxon_context_id {
1105 IWL_RXON_CTX_BSS,
1106 IWL_RXON_CTX_PAN,
1107
1108 NUM_IWL_RXON_CTX
1109};
1110
1111struct iwl_rxon_context {
1112 struct ieee80211_vif *vif;
1113
1114 const u8 *ac_to_fifo;
1115 const u8 *ac_to_queue;
1116 u8 mcast_queue;
1117
1118 /*
1119 * We could use the vif to indicate active, but we
1120 * also need it to be active during disabling when
1121 * we already removed the vif for type setting.
1122 */
1123 bool always_active, is_active;
1124
1125 bool ht_need_multiple_chains;
1126
1127 enum iwl_rxon_context_id ctxid;
1128
1129 u32 interface_modes, exclusive_interface_modes;
1130 u8 unused_devtype, ap_devtype, ibss_devtype, station_devtype;
1131
1132 /*
1133 * We declare this const so it can only be
1134 * changed via explicit cast within the
1135 * routines that actually update the physical
1136 * hardware.
1137 */
1138 const struct iwl_rxon_cmd active;
1139 struct iwl_rxon_cmd staging;
1140
1141 struct iwl_rxon_time_cmd timing;
1142
1143 struct iwl_qos_info qos_data;
1144
1145 u8 bcast_sta_id, ap_sta_id;
1146
1147 u8 rxon_cmd, rxon_assoc_cmd, rxon_timing_cmd;
1148 u8 qos_cmd;
1149 u8 wep_key_cmd;
1150
1151 struct iwl_wep_key wep_keys[WEP_KEYS_MAX];
1152 u8 key_mapping_keys;
1153
1154 __le32 station_flags;
1155
1156 int beacon_int;
1157
1158 struct {
1159 bool non_gf_sta_present;
1160 u8 protection;
1161 bool enabled, is_40mhz;
1162 u8 extension_chan_offset;
1163 } ht;
1164
1165 bool last_tx_rejected;
1166};
1167
1168enum iwl_scan_type {
1169 IWL_SCAN_NORMAL,
1170 IWL_SCAN_RADIO_RESET,
1171 IWL_SCAN_OFFCH_TX,
1172};
1173
1174enum iwlagn_ucode_type {
1175 IWL_UCODE_NONE,
1176 IWL_UCODE_REGULAR,
1177 IWL_UCODE_INIT,
1178 IWL_UCODE_WOWLAN,
1179};
1180
1181#ifdef CONFIG_IWLWIFI_DEVICE_SVTOOL
1182struct iwl_testmode_trace {
1183 u32 buff_size;
1184 u32 total_size;
1185 u32 num_chunks;
1186 u8 *cpu_addr;
1187 u8 *trace_addr;
1188 dma_addr_t dma_addr;
1189 bool trace_enabled;
1190};
1191#endif
1192
1193/* uCode ownership */
1194#define IWL_OWNERSHIP_DRIVER 0
1195#define IWL_OWNERSHIP_TM 1
1196
1197struct iwl_priv {
1198
1199 /* ieee device used by generic ieee processing code */
1200 struct ieee80211_hw *hw;
1201 struct ieee80211_channel *ieee_channels;
1202 struct ieee80211_rate *ieee_rates;
1203 struct iwl_cfg *cfg;
1204
1205 enum ieee80211_band band;
1206
1207 void (*pre_rx_handler)(struct iwl_priv *priv,
1208 struct iwl_rx_mem_buffer *rxb);
1209 void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv,
1210 struct iwl_rx_mem_buffer *rxb);
1211
1212 struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
1213
1214 /* spectrum measurement report caching */
1215 struct iwl_spectrum_notification measure_report;
1216 u8 measurement_status;
1217
1218 /* ucode beacon time */
1219 u32 ucode_beacon_time;
1220 int missed_beacon_threshold;
1221
1222 /* track IBSS manager (last beacon) status */
1223 u32 ibss_manager;
1224
1225 /* jiffies when last recovery from statistics was performed */
1226 unsigned long rx_statistics_jiffies;
1227
1228 /* force reset */
1229 struct iwl_force_reset force_reset[IWL_MAX_FORCE_RESET];
1230
1231 /* firmware reload counter and timestamp */
1232 unsigned long reload_jiffies;
1233 int reload_count;
1234
1235 /* we allocate array of iwl_channel_info for NIC's valid channels.
1236 * Access via channel # using indirect index array */
1237 struct iwl_channel_info *channel_info; /* channel info array */
1238 u8 channel_count; /* # of channels */
1239
1240 /* thermal calibration */
1241 s32 temperature; /* degrees Kelvin */
1242 s32 last_temperature;
1243
1244 /* init calibration results */
1245 struct iwl_calib_result calib_results[IWL_CALIB_MAX];
1246
1247 /* Scan related variables */
1248 unsigned long scan_start;
1249 unsigned long scan_start_tsf;
1250 void *scan_cmd;
1251 enum ieee80211_band scan_band;
1252 struct cfg80211_scan_request *scan_request;
1253 struct ieee80211_vif *scan_vif;
1254 enum iwl_scan_type scan_type;
1255 u8 scan_tx_ant[IEEE80211_NUM_BANDS];
1256 u8 mgmt_tx_ant;
1257
1258 /* spinlock */
1259 spinlock_t lock; /* protect general shared data */
1260 spinlock_t hcmd_lock; /* protect hcmd */
1261 spinlock_t reg_lock; /* protect hw register access */
1262 struct mutex mutex;
1263
1264 struct iwl_bus *bus; /* bus specific data */
1265 struct iwl_trans trans;
1266
1267 /* microcode/device supports multiple contexts */
1268 u8 valid_contexts;
1269
1270 /* command queue number */
1271 u8 cmd_queue;
1272
1273 /* max number of station keys */
1274 u8 sta_key_max_num;
1275
1276 bool new_scan_threshold_behaviour;
1277
1278 /* EEPROM MAC addresses */
1279 struct mac_address addresses[2];
1280
1281 /* uCode images, save to reload in case of failure */
1282 int fw_index; /* firmware we're trying to load */
1283 u32 ucode_ver; /* version of ucode, copy of
1284 iwl_ucode.ver */
1285
1286 /* uCode owner: default: IWL_OWNERSHIP_DRIVER */
1287 u8 ucode_owner;
1288
1289 struct fw_img ucode_rt;
1290 struct fw_img ucode_init;
1291 struct fw_img ucode_wowlan;
1292
1293 enum iwlagn_ucode_type ucode_type;
1294 u8 ucode_write_complete; /* the image write is complete */
1295 char firmware_name[25];
1296
1297 struct iwl_rxon_context contexts[NUM_IWL_RXON_CTX];
1298
1299 __le16 switch_channel;
1300
1301 struct {
1302 u32 error_event_table;
1303 u32 log_event_table;
1304 } device_pointers;
1305
1306 u16 active_rate;
1307
1308 u8 start_calib;
1309 struct iwl_sensitivity_data sensitivity_data;
1310 struct iwl_chain_noise_data chain_noise_data;
1311 bool enhance_sensitivity_table;
1312 __le16 sensitivity_tbl[HD_TABLE_SIZE];
1313 __le16 enhance_sensitivity_tbl[ENHANCE_HD_TABLE_ENTRIES];
1314
1315 struct iwl_ht_config current_ht_config;
1316
1317 /* Rate scaling data */
1318 u8 retry_rate;
1319
1320 wait_queue_head_t wait_command_queue;
1321
1322 int activity_timer_active;
1323
1324 /* Rx and Tx DMA processing queues */
1325 struct iwl_rx_queue rxq;
1326 struct iwl_tx_queue *txq;
1327 unsigned long txq_ctx_active_msk;
1328 struct iwl_dma_ptr kw; /* keep warm address */
1329 struct iwl_dma_ptr scd_bc_tbls;
1330
1331 u32 scd_base_addr; /* scheduler sram base address */
1332
1333 unsigned long status;
1334
1335 /* counts mgmt, ctl, and data packets */
1336 struct traffic_stats tx_stats;
1337 struct traffic_stats rx_stats;
1338
1339 /* counts interrupts */
1340 struct isr_statistics isr_stats;
1341
1342 struct iwl_power_mgr power_data;
1343 struct iwl_tt_mgmt thermal_throttle;
1344
1345 /* station table variables */
1346
1347 /* Note: if lock and sta_lock are needed, lock must be acquired first */
1348 spinlock_t sta_lock;
1349 int num_stations;
1350 struct iwl_station_entry stations[IWLAGN_STATION_COUNT];
1351 unsigned long ucode_key_table;
1352
1353 /* queue refcounts */
1354#define IWL_MAX_HW_QUEUES 32
1355 unsigned long queue_stopped[BITS_TO_LONGS(IWL_MAX_HW_QUEUES)];
1356 /* for each AC */
1357 atomic_t queue_stop_count[4];
1358
1359 /* Indication if ieee80211_ops->open has been called */
1360 u8 is_open;
1361
1362 u8 mac80211_registered;
1363
1364 bool wowlan;
1365
1366 /* eeprom -- this is in the card's little endian byte order */
1367 u8 *eeprom;
1368 int nvm_device_type;
1369 struct iwl_eeprom_calib_info *calib_info;
1370
1371 enum nl80211_iftype iw_mode;
1372
1373 /* Last Rx'd beacon timestamp */
1374 u64 timestamp;
1375
1376 struct {
1377 __le32 flag;
1378 struct statistics_general_common common;
1379 struct statistics_rx_non_phy rx_non_phy;
1380 struct statistics_rx_phy rx_ofdm;
1381 struct statistics_rx_ht_phy rx_ofdm_ht;
1382 struct statistics_rx_phy rx_cck;
1383 struct statistics_tx tx;
1384#ifdef CONFIG_IWLWIFI_DEBUGFS
1385 struct statistics_bt_activity bt_activity;
1386 __le32 num_bt_kills, accum_num_bt_kills;
1387#endif
1388 } statistics;
1389#ifdef CONFIG_IWLWIFI_DEBUGFS
1390 struct {
1391 struct statistics_general_common common;
1392 struct statistics_rx_non_phy rx_non_phy;
1393 struct statistics_rx_phy rx_ofdm;
1394 struct statistics_rx_ht_phy rx_ofdm_ht;
1395 struct statistics_rx_phy rx_cck;
1396 struct statistics_tx tx;
1397 struct statistics_bt_activity bt_activity;
1398 } accum_stats, delta_stats, max_delta_stats;
1399#endif
1400
1401 /* INT ICT Table */
1402 __le32 *ict_tbl;
1403 void *ict_tbl_vir;
1404 dma_addr_t ict_tbl_dma;
1405 dma_addr_t aligned_ict_tbl_dma;
1406 int ict_index;
1407 u32 inta;
1408 bool use_ict;
1409 /*
1410 * reporting the number of tids has AGG on. 0 means
1411 * no AGGREGATION
1412 */
1413 u8 agg_tids_count;
1414
1415 struct iwl_rx_phy_res last_phy_res;
1416 bool last_phy_res_valid;
1417
1418 struct completion firmware_loading_complete;
1419
1420 u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr;
1421 u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr;
1422
1423 /*
1424 * chain noise reset and gain commands are the
1425 * two extra calibration commands follows the standard
1426 * phy calibration commands
1427 */
1428 u8 phy_calib_chain_noise_reset_cmd;
1429 u8 phy_calib_chain_noise_gain_cmd;
1430
1431 /* counts reply_tx error */
1432 struct reply_tx_error_statistics reply_tx_stats;
1433 struct reply_agg_tx_error_statistics reply_agg_tx_stats;
1434 /* notification wait support */
1435 struct list_head notif_waits;
1436 spinlock_t notif_wait_lock;
1437 wait_queue_head_t notif_waitq;
1438
1439 /* remain-on-channel offload support */
1440 struct ieee80211_channel *hw_roc_channel;
1441 struct delayed_work hw_roc_work;
1442 enum nl80211_channel_type hw_roc_chantype;
1443 int hw_roc_duration;
1444 bool hw_roc_setup;
1445
1446 struct sk_buff *offchan_tx_skb;
1447 int offchan_tx_timeout;
1448 struct ieee80211_channel *offchan_tx_chan;
1449
1450 /* bt coex */
1451 u8 bt_enable_flag;
1452 u8 bt_status;
1453 u8 bt_traffic_load, last_bt_traffic_load;
1454 bool bt_ch_announce;
1455 bool bt_full_concurrent;
1456 bool bt_ant_couple_ok;
1457 __le32 kill_ack_mask;
1458 __le32 kill_cts_mask;
1459 __le16 bt_valid;
1460 u16 bt_on_thresh;
1461 u16 bt_duration;
1462 u16 dynamic_frag_thresh;
1463 u8 bt_ci_compliance;
1464 struct work_struct bt_traffic_change_work;
1465 bool bt_enable_pspoll;
1466 struct iwl_rxon_context *cur_rssi_ctx;
1467 bool bt_is_sco;
1468
1469 struct iwl_hw_params hw_params;
1470
1471 u32 inta_mask;
1472
1473 struct workqueue_struct *workqueue;
1474
1475 struct work_struct restart;
1476 struct work_struct scan_completed;
1477 struct work_struct rx_replenish;
1478 struct work_struct abort_scan;
1479
1480 struct work_struct beacon_update;
1481 struct iwl_rxon_context *beacon_ctx;
1482 struct sk_buff *beacon_skb;
1483 void *beacon_cmd;
1484
1485 struct work_struct tt_work;
1486 struct work_struct ct_enter;
1487 struct work_struct ct_exit;
1488 struct work_struct start_internal_scan;
1489 struct work_struct tx_flush;
1490 struct work_struct bt_full_concurrency;
1491 struct work_struct bt_runtime_config;
1492
1493 struct tasklet_struct irq_tasklet;
1494
1495 struct delayed_work scan_check;
1496
1497 /* TX Power */
1498 s8 tx_power_user_lmt;
1499 s8 tx_power_device_lmt;
1500 s8 tx_power_lmt_in_half_dbm; /* max tx power in half-dBm format */
1501 s8 tx_power_next;
1502
1503
1504#ifdef CONFIG_IWLWIFI_DEBUG
1505 /* debugging info */
1506 u32 debug_level; /* per device debugging will override global
1507 iwl_debug_level if set */
1508#endif /* CONFIG_IWLWIFI_DEBUG */
1509#ifdef CONFIG_IWLWIFI_DEBUGFS
1510 /* debugfs */
1511 u16 tx_traffic_idx;
1512 u16 rx_traffic_idx;
1513 u8 *tx_traffic;
1514 u8 *rx_traffic;
1515 struct dentry *debugfs_dir;
1516 u32 dbgfs_sram_offset, dbgfs_sram_len;
1517 bool disable_ht40;
1518 void *wowlan_sram;
1519#endif /* CONFIG_IWLWIFI_DEBUGFS */
1520
1521 struct work_struct txpower_work;
1522 u32 disable_sens_cal;
1523 u32 disable_chain_noise_cal;
1524 struct work_struct run_time_calib_work;
1525 struct timer_list statistics_periodic;
1526 struct timer_list ucode_trace;
1527 struct timer_list watchdog;
1528
1529 struct iwl_event_log event_log;
1530
1531 struct led_classdev led;
1532 unsigned long blink_on, blink_off;
1533 bool led_registered;
1534#ifdef CONFIG_IWLWIFI_DEVICE_SVTOOL
1535 struct iwl_testmode_trace testmode_trace;
1536 u32 tm_fixed_rate;
1537#endif
1538
1539 /* WoWLAN GTK rekey data */
1540 u8 kck[NL80211_KCK_LEN], kek[NL80211_KEK_LEN];
1541 __le64 replay_ctr;
1542 __le16 last_seq_ctl;
1543 bool have_rekey_data;
1544}; /*iwl_priv */
1545
1546static inline void iwl_txq_ctx_activate(struct iwl_priv *priv, int txq_id)
1547{
1548 set_bit(txq_id, &priv->txq_ctx_active_msk);
1549}
1550
1551static inline void iwl_txq_ctx_deactivate(struct iwl_priv *priv, int txq_id)
1552{
1553 clear_bit(txq_id, &priv->txq_ctx_active_msk);
1554}
1555
1556#ifdef CONFIG_IWLWIFI_DEBUG
1557/*
1558 * iwl_get_debug_level: Return active debug level for device
1559 *
1560 * Using sysfs it is possible to set per device debug level. This debug
1561 * level will be used if set, otherwise the global debug level which can be
1562 * set via module parameter is used.
1563 */
1564static inline u32 iwl_get_debug_level(struct iwl_priv *priv)
1565{
1566 if (priv->debug_level)
1567 return priv->debug_level;
1568 else
1569 return iwl_debug_level;
1570}
1571#else
1572static inline u32 iwl_get_debug_level(struct iwl_priv *priv)
1573{
1574 return iwl_debug_level;
1575}
1576#endif
1577
1578
1579static inline struct ieee80211_hdr *iwl_tx_queue_get_hdr(struct iwl_priv *priv,
1580 int txq_id, int idx)
1581{
1582 if (priv->txq[txq_id].txb[idx].skb)
1583 return (struct ieee80211_hdr *)priv->txq[txq_id].
1584 txb[idx].skb->data;
1585 return NULL;
1586}
1587
1588static inline struct iwl_rxon_context *
1589iwl_rxon_ctx_from_vif(struct ieee80211_vif *vif)
1590{
1591 struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
1592
1593 return vif_priv->ctx;
1594}
1595
1596#define for_each_context(priv, ctx) \
1597 for (ctx = &priv->contexts[IWL_RXON_CTX_BSS]; \
1598 ctx < &priv->contexts[NUM_IWL_RXON_CTX]; ctx++) \
1599 if (priv->valid_contexts & BIT(ctx->ctxid))
1600
1601static inline int iwl_is_associated_ctx(struct iwl_rxon_context *ctx)
1602{
1603 return (ctx->active.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
1604}
1605
1606static inline int iwl_is_associated(struct iwl_priv *priv,
1607 enum iwl_rxon_context_id ctxid)
1608{
1609 return iwl_is_associated_ctx(&priv->contexts[ctxid]);
1610}
1611
1612static inline int iwl_is_any_associated(struct iwl_priv *priv)
1613{
1614 struct iwl_rxon_context *ctx;
1615 for_each_context(priv, ctx)
1616 if (iwl_is_associated_ctx(ctx))
1617 return true;
1618 return false;
1619}
1620
1621static inline int is_channel_valid(const struct iwl_channel_info *ch_info)
1622{
1623 if (ch_info == NULL)
1624 return 0;
1625 return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
1626}
1627
1628static inline int is_channel_radar(const struct iwl_channel_info *ch_info)
1629{
1630 return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
1631}
1632
1633static inline u8 is_channel_a_band(const struct iwl_channel_info *ch_info)
1634{
1635 return ch_info->band == IEEE80211_BAND_5GHZ;
1636}
1637
1638static inline u8 is_channel_bg_band(const struct iwl_channel_info *ch_info)
1639{
1640 return ch_info->band == IEEE80211_BAND_2GHZ;
1641}
1642
1643static inline int is_channel_passive(const struct iwl_channel_info *ch)
1644{
1645 return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
1646}
1647
1648static inline int is_channel_ibss(const struct iwl_channel_info *ch)
1649{
1650 return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
1651}
1652
1653static inline void __iwl_free_pages(struct iwl_priv *priv, struct page *page)
1654{
1655 __free_pages(page, priv->hw_params.rx_page_order);
1656}
1657
1658static inline void iwl_free_pages(struct iwl_priv *priv, unsigned long page)
1659{
1660 free_pages(page, priv->hw_params.rx_page_order);
1661}
1662#endif /* __iwl_dev_h__ */
generated by cgit v1.2.2 (git 2.25.0) at 2025-03-20 14:53:37 -0400