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[deliverable/linux.git] / drivers / net / wireless / iwlwifi / iwl-dev.h
1 /******************************************************************************
2 *
3 * Copyright(c) 2003 - 2010 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 * Please use iwl-4965-hw.h for hardware-related definitions.
30 */
31
32 #ifndef __iwl_dev_h__
33 #define __iwl_dev_h__
34
35 #include <linux/pci.h> /* for struct pci_device_id */
36 #include <linux/kernel.h>
37 #include <net/ieee80211_radiotap.h>
38
39 #include "iwl-eeprom.h"
40 #include "iwl-csr.h"
41 #include "iwl-prph.h"
42 #include "iwl-fh.h"
43 #include "iwl-debug.h"
44 #include "iwl-4965-hw.h"
45 #include "iwl-3945-hw.h"
46 #include "iwl-led.h"
47 #include "iwl-power.h"
48 #include "iwl-agn-rs.h"
49
50 /* configuration for the iwl4965 */
51 extern struct iwl_cfg iwl4965_agn_cfg;
52 extern struct iwl_cfg iwl5300_agn_cfg;
53 extern struct iwl_cfg iwl5100_agn_cfg;
54 extern struct iwl_cfg iwl5350_agn_cfg;
55 extern struct iwl_cfg iwl5100_bgn_cfg;
56 extern struct iwl_cfg iwl5100_abg_cfg;
57 extern struct iwl_cfg iwl5150_agn_cfg;
58 extern struct iwl_cfg iwl5150_abg_cfg;
59 extern struct iwl_cfg iwl6000i_2agn_cfg;
60 extern struct iwl_cfg iwl6000i_2abg_cfg;
61 extern struct iwl_cfg iwl6000i_2bg_cfg;
62 extern struct iwl_cfg iwl6000_3agn_cfg;
63 extern struct iwl_cfg iwl6050_2agn_cfg;
64 extern struct iwl_cfg iwl6050_2abg_cfg;
65 extern struct iwl_cfg iwl1000_bgn_cfg;
66 extern struct iwl_cfg iwl1000_bg_cfg;
67
68 struct iwl_tx_queue;
69
70 /* shared structures from iwl-5000.c */
71 extern struct iwl_mod_params iwl50_mod_params;
72 extern struct iwl_ucode_ops iwl5000_ucode;
73 extern struct iwl_lib_ops iwl5000_lib;
74 extern struct iwl_hcmd_ops iwl5000_hcmd;
75 extern struct iwl_hcmd_utils_ops iwl5000_hcmd_utils;
76
77 /* shared functions from iwl-5000.c */
78 extern u16 iwl5000_get_hcmd_size(u8 cmd_id, u16 len);
79 extern u16 iwl5000_build_addsta_hcmd(const struct iwl_addsta_cmd *cmd,
80 u8 *data);
81 extern void iwl5000_rts_tx_cmd_flag(struct ieee80211_tx_info *info,
82 __le32 *tx_flags);
83 extern int iwl5000_calc_rssi(struct iwl_priv *priv,
84 struct iwl_rx_phy_res *rx_resp);
85 extern void iwl5000_nic_config(struct iwl_priv *priv);
86 extern u16 iwl5000_eeprom_calib_version(struct iwl_priv *priv);
87 extern const u8 *iwl5000_eeprom_query_addr(const struct iwl_priv *priv,
88 size_t offset);
89 extern void iwl5000_txq_update_byte_cnt_tbl(struct iwl_priv *priv,
90 struct iwl_tx_queue *txq,
91 u16 byte_cnt);
92 extern void iwl5000_txq_inval_byte_cnt_tbl(struct iwl_priv *priv,
93 struct iwl_tx_queue *txq);
94 extern int iwl5000_load_ucode(struct iwl_priv *priv);
95 extern void iwl5000_init_alive_start(struct iwl_priv *priv);
96 extern int iwl5000_alive_notify(struct iwl_priv *priv);
97 extern int iwl5000_hw_set_hw_params(struct iwl_priv *priv);
98 extern int iwl5000_txq_agg_enable(struct iwl_priv *priv, int txq_id,
99 int tx_fifo, int sta_id, int tid, u16 ssn_idx);
100 extern int iwl5000_txq_agg_disable(struct iwl_priv *priv, u16 txq_id,
101 u16 ssn_idx, u8 tx_fifo);
102 extern void iwl5000_txq_set_sched(struct iwl_priv *priv, u32 mask);
103 extern void iwl5000_setup_deferred_work(struct iwl_priv *priv);
104 extern void iwl5000_rx_handler_setup(struct iwl_priv *priv);
105 extern int iwl5000_hw_valid_rtc_data_addr(u32 addr);
106 extern int iwl5000_send_tx_power(struct iwl_priv *priv);
107 extern void iwl5000_temperature(struct iwl_priv *priv);
108
109 /* CT-KILL constants */
110 #define CT_KILL_THRESHOLD_LEGACY 110 /* in Celsius */
111 #define CT_KILL_THRESHOLD 114 /* in Celsius */
112 #define CT_KILL_EXIT_THRESHOLD 95 /* in Celsius */
113
114 /* Default noise level to report when noise measurement is not available.
115 * This may be because we're:
116 * 1) Not associated (4965, no beacon statistics being sent to driver)
117 * 2) Scanning (noise measurement does not apply to associated channel)
118 * 3) Receiving CCK (3945 delivers noise info only for OFDM frames)
119 * Use default noise value of -127 ... this is below the range of measurable
120 * Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
121 * Also, -127 works better than 0 when averaging frames with/without
122 * noise info (e.g. averaging might be done in app); measured dBm values are
123 * always negative ... using a negative value as the default keeps all
124 * averages within an s8's (used in some apps) range of negative values. */
125 #define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
126
127 /*
128 * RTS threshold here is total size [2347] minus 4 FCS bytes
129 * Per spec:
130 * a value of 0 means RTS on all data/management packets
131 * a value > max MSDU size means no RTS
132 * else RTS for data/management frames where MPDU is larger
133 * than RTS value.
134 */
135 #define DEFAULT_RTS_THRESHOLD 2347U
136 #define MIN_RTS_THRESHOLD 0U
137 #define MAX_RTS_THRESHOLD 2347U
138 #define MAX_MSDU_SIZE 2304U
139 #define MAX_MPDU_SIZE 2346U
140 #define DEFAULT_BEACON_INTERVAL 100U
141 #define DEFAULT_SHORT_RETRY_LIMIT 7U
142 #define DEFAULT_LONG_RETRY_LIMIT 4U
143
144 struct iwl_rx_mem_buffer {
145 dma_addr_t page_dma;
146 struct page *page;
147 struct list_head list;
148 };
149
150 #define rxb_addr(r) page_address(r->page)
151
152 /* defined below */
153 struct iwl_device_cmd;
154
155 struct iwl_cmd_meta {
156 /* only for SYNC commands, iff the reply skb is wanted */
157 struct iwl_host_cmd *source;
158 /*
159 * only for ASYNC commands
160 * (which is somewhat stupid -- look at iwl-sta.c for instance
161 * which duplicates a bunch of code because the callback isn't
162 * invoked for SYNC commands, if it were and its result passed
163 * through it would be simpler...)
164 */
165 void (*callback)(struct iwl_priv *priv,
166 struct iwl_device_cmd *cmd,
167 struct iwl_rx_packet *pkt);
168
169 /* The CMD_SIZE_HUGE flag bit indicates that the command
170 * structure is stored at the end of the shared queue memory. */
171 u32 flags;
172
173 DECLARE_PCI_UNMAP_ADDR(mapping)
174 DECLARE_PCI_UNMAP_LEN(len)
175 };
176
177 /*
178 * Generic queue structure
179 *
180 * Contains common data for Rx and Tx queues
181 */
182 struct iwl_queue {
183 int n_bd; /* number of BDs in this queue */
184 int write_ptr; /* 1-st empty entry (index) host_w*/
185 int read_ptr; /* last used entry (index) host_r*/
186 dma_addr_t dma_addr; /* physical addr for BD's */
187 int n_window; /* safe queue window */
188 u32 id;
189 int low_mark; /* low watermark, resume queue if free
190 * space more than this */
191 int high_mark; /* high watermark, stop queue if free
192 * space less than this */
193 } __attribute__ ((packed));
194
195 /* One for each TFD */
196 struct iwl_tx_info {
197 struct sk_buff *skb[IWL_NUM_OF_TBS - 1];
198 };
199
200 /**
201 * struct iwl_tx_queue - Tx Queue for DMA
202 * @q: generic Rx/Tx queue descriptor
203 * @bd: base of circular buffer of TFDs
204 * @cmd: array of command/TX buffer pointers
205 * @meta: array of meta data for each command/tx buffer
206 * @dma_addr_cmd: physical address of cmd/tx buffer array
207 * @txb: array of per-TFD driver data
208 * @need_update: indicates need to update read/write index
209 * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
210 *
211 * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
212 * descriptors) and required locking structures.
213 */
214 #define TFD_TX_CMD_SLOTS 256
215 #define TFD_CMD_SLOTS 32
216
217 struct iwl_tx_queue {
218 struct iwl_queue q;
219 void *tfds;
220 struct iwl_device_cmd **cmd;
221 struct iwl_cmd_meta *meta;
222 struct iwl_tx_info *txb;
223 u8 need_update;
224 u8 sched_retry;
225 u8 active;
226 u8 swq_id;
227 };
228
229 #define IWL_NUM_SCAN_RATES (2)
230
231 struct iwl4965_channel_tgd_info {
232 u8 type;
233 s8 max_power;
234 };
235
236 struct iwl4965_channel_tgh_info {
237 s64 last_radar_time;
238 };
239
240 #define IWL4965_MAX_RATE (33)
241
242 struct iwl3945_clip_group {
243 /* maximum power level to prevent clipping for each rate, derived by
244 * us from this band's saturation power in EEPROM */
245 const s8 clip_powers[IWL_MAX_RATES];
246 };
247
248 /* current Tx power values to use, one for each rate for each channel.
249 * requested power is limited by:
250 * -- regulatory EEPROM limits for this channel
251 * -- hardware capabilities (clip-powers)
252 * -- spectrum management
253 * -- user preference (e.g. iwconfig)
254 * when requested power is set, base power index must also be set. */
255 struct iwl3945_channel_power_info {
256 struct iwl3945_tx_power tpc; /* actual radio and DSP gain settings */
257 s8 power_table_index; /* actual (compenst'd) index into gain table */
258 s8 base_power_index; /* gain index for power at factory temp. */
259 s8 requested_power; /* power (dBm) requested for this chnl/rate */
260 };
261
262 /* current scan Tx power values to use, one for each scan rate for each
263 * channel. */
264 struct iwl3945_scan_power_info {
265 struct iwl3945_tx_power tpc; /* actual radio and DSP gain settings */
266 s8 power_table_index; /* actual (compenst'd) index into gain table */
267 s8 requested_power; /* scan pwr (dBm) requested for chnl/rate */
268 };
269
270 /*
271 * One for each channel, holds all channel setup data
272 * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
273 * with one another!
274 */
275 struct iwl_channel_info {
276 struct iwl4965_channel_tgd_info tgd;
277 struct iwl4965_channel_tgh_info tgh;
278 struct iwl_eeprom_channel eeprom; /* EEPROM regulatory limit */
279 struct iwl_eeprom_channel ht40_eeprom; /* EEPROM regulatory limit for
280 * HT40 channel */
281
282 u8 channel; /* channel number */
283 u8 flags; /* flags copied from EEPROM */
284 s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
285 s8 curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) limit */
286 s8 min_power; /* always 0 */
287 s8 scan_power; /* (dBm) regul. eeprom, direct scans, any rate */
288
289 u8 group_index; /* 0-4, maps channel to group1/2/3/4/5 */
290 u8 band_index; /* 0-4, maps channel to band1/2/3/4/5 */
291 enum ieee80211_band band;
292
293 /* HT40 channel info */
294 s8 ht40_max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
295 u8 ht40_flags; /* flags copied from EEPROM */
296 u8 ht40_extension_channel; /* HT_IE_EXT_CHANNEL_* */
297
298 /* Radio/DSP gain settings for each "normal" data Tx rate.
299 * These include, in addition to RF and DSP gain, a few fields for
300 * remembering/modifying gain settings (indexes). */
301 struct iwl3945_channel_power_info power_info[IWL4965_MAX_RATE];
302
303 /* Radio/DSP gain settings for each scan rate, for directed scans. */
304 struct iwl3945_scan_power_info scan_pwr_info[IWL_NUM_SCAN_RATES];
305 };
306
307 #define IWL_TX_FIFO_BK 0
308 #define IWL_TX_FIFO_BE 1
309 #define IWL_TX_FIFO_VI 2
310 #define IWL_TX_FIFO_VO 3
311 #define IWL_TX_FIFO_UNUSED -1
312
313 /* Minimum number of queues. MAX_NUM is defined in hw specific files.
314 * Set the minimum to accommodate the 4 standard TX queues, 1 command
315 * queue, 2 (unused) HCCA queues, and 4 HT queues (one for each AC) */
316 #define IWL_MIN_NUM_QUEUES 10
317
318 /*
319 * Queue #4 is the command queue for 3945/4965/5x00/1000/6x00,
320 * the driver maps it into the appropriate device FIFO for the
321 * uCode.
322 */
323 #define IWL_CMD_QUEUE_NUM 4
324
325 /* Power management (not Tx power) structures */
326
327 enum iwl_pwr_src {
328 IWL_PWR_SRC_VMAIN,
329 IWL_PWR_SRC_VAUX,
330 };
331
332 #define IEEE80211_DATA_LEN 2304
333 #define IEEE80211_4ADDR_LEN 30
334 #define IEEE80211_HLEN (IEEE80211_4ADDR_LEN)
335 #define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
336
337 struct iwl_frame {
338 union {
339 struct ieee80211_hdr frame;
340 struct iwl_tx_beacon_cmd beacon;
341 u8 raw[IEEE80211_FRAME_LEN];
342 u8 cmd[360];
343 } u;
344 struct list_head list;
345 };
346
347 #define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
348 #define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
349 #define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
350
351 enum {
352 CMD_SYNC = 0,
353 CMD_SIZE_NORMAL = 0,
354 CMD_NO_SKB = 0,
355 CMD_SIZE_HUGE = (1 << 0),
356 CMD_ASYNC = (1 << 1),
357 CMD_WANT_SKB = (1 << 2),
358 };
359
360 #define DEF_CMD_PAYLOAD_SIZE 320
361
362 /*
363 * IWL_LINK_HDR_MAX should include ieee80211_hdr, radiotap header,
364 * SNAP header and alignment. It should also be big enough for 802.11
365 * control frames.
366 */
367 #define IWL_LINK_HDR_MAX 64
368
369 /**
370 * struct iwl_device_cmd
371 *
372 * For allocation of the command and tx queues, this establishes the overall
373 * size of the largest command we send to uCode, except for a scan command
374 * (which is relatively huge; space is allocated separately).
375 */
376 struct iwl_device_cmd {
377 struct iwl_cmd_header hdr; /* uCode API */
378 union {
379 u32 flags;
380 u8 val8;
381 u16 val16;
382 u32 val32;
383 struct iwl_tx_cmd tx;
384 struct iwl6000_channel_switch_cmd chswitch;
385 u8 payload[DEF_CMD_PAYLOAD_SIZE];
386 } __attribute__ ((packed)) cmd;
387 } __attribute__ ((packed));
388
389 #define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_device_cmd))
390
391
392 struct iwl_host_cmd {
393 const void *data;
394 unsigned long reply_page;
395 void (*callback)(struct iwl_priv *priv,
396 struct iwl_device_cmd *cmd,
397 struct iwl_rx_packet *pkt);
398 u32 flags;
399 u16 len;
400 u8 id;
401 };
402
403 #define SUP_RATE_11A_MAX_NUM_CHANNELS 8
404 #define SUP_RATE_11B_MAX_NUM_CHANNELS 4
405 #define SUP_RATE_11G_MAX_NUM_CHANNELS 12
406
407 /**
408 * struct iwl_rx_queue - Rx queue
409 * @bd: driver's pointer to buffer of receive buffer descriptors (rbd)
410 * @dma_addr: bus address of buffer of receive buffer descriptors (rbd)
411 * @read: Shared index to newest available Rx buffer
412 * @write: Shared index to oldest written Rx packet
413 * @free_count: Number of pre-allocated buffers in rx_free
414 * @rx_free: list of free SKBs for use
415 * @rx_used: List of Rx buffers with no SKB
416 * @need_update: flag to indicate we need to update read/write index
417 * @rb_stts: driver's pointer to receive buffer status
418 * @rb_stts_dma: bus address of receive buffer status
419 *
420 * NOTE: rx_free and rx_used are used as a FIFO for iwl_rx_mem_buffers
421 */
422 struct iwl_rx_queue {
423 __le32 *bd;
424 dma_addr_t dma_addr;
425 struct iwl_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
426 struct iwl_rx_mem_buffer *queue[RX_QUEUE_SIZE];
427 u32 read;
428 u32 write;
429 u32 free_count;
430 u32 write_actual;
431 struct list_head rx_free;
432 struct list_head rx_used;
433 int need_update;
434 struct iwl_rb_status *rb_stts;
435 dma_addr_t rb_stts_dma;
436 spinlock_t lock;
437 };
438
439 #define IWL_SUPPORTED_RATES_IE_LEN 8
440
441 #define MAX_TID_COUNT 9
442
443 #define IWL_INVALID_RATE 0xFF
444 #define IWL_INVALID_VALUE -1
445
446 /**
447 * struct iwl_ht_agg -- aggregation status while waiting for block-ack
448 * @txq_id: Tx queue used for Tx attempt
449 * @frame_count: # frames attempted by Tx command
450 * @wait_for_ba: Expect block-ack before next Tx reply
451 * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window
452 * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window
453 * @bitmap1: High order, one bit for each frame pending ACK in Tx window
454 * @rate_n_flags: Rate at which Tx was attempted
455 *
456 * If REPLY_TX indicates that aggregation was attempted, driver must wait
457 * for block ack (REPLY_COMPRESSED_BA). This struct stores tx reply info
458 * until block ack arrives.
459 */
460 struct iwl_ht_agg {
461 u16 txq_id;
462 u16 frame_count;
463 u16 wait_for_ba;
464 u16 start_idx;
465 u64 bitmap;
466 u32 rate_n_flags;
467 #define IWL_AGG_OFF 0
468 #define IWL_AGG_ON 1
469 #define IWL_EMPTYING_HW_QUEUE_ADDBA 2
470 #define IWL_EMPTYING_HW_QUEUE_DELBA 3
471 u8 state;
472 };
473
474
475 struct iwl_tid_data {
476 u16 seq_number;
477 u16 tfds_in_queue;
478 struct iwl_ht_agg agg;
479 };
480
481 struct iwl_hw_key {
482 enum ieee80211_key_alg alg;
483 int keylen;
484 u8 keyidx;
485 u8 key[32];
486 };
487
488 union iwl_ht_rate_supp {
489 u16 rates;
490 struct {
491 u8 siso_rate;
492 u8 mimo_rate;
493 };
494 };
495
496 #define CFG_HT_RX_AMPDU_FACTOR_DEF (0x3)
497
498 /*
499 * Maximal MPDU density for TX aggregation
500 * 4 - 2us density
501 * 5 - 4us density
502 * 6 - 8us density
503 * 7 - 16us density
504 */
505 #define CFG_HT_MPDU_DENSITY_4USEC (0x5)
506 #define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_4USEC
507
508 struct iwl_ht_config {
509 /* self configuration data */
510 bool is_ht;
511 bool is_40mhz;
512 bool single_chain_sufficient;
513 enum ieee80211_smps_mode smps; /* current smps mode */
514 /* BSS related data */
515 u8 extension_chan_offset;
516 u8 ht_protection;
517 u8 non_GF_STA_present;
518 };
519
520 union iwl_qos_capabity {
521 struct {
522 u8 edca_count:4; /* bit 0-3 */
523 u8 q_ack:1; /* bit 4 */
524 u8 queue_request:1; /* bit 5 */
525 u8 txop_request:1; /* bit 6 */
526 u8 reserved:1; /* bit 7 */
527 } q_AP;
528 struct {
529 u8 acvo_APSD:1; /* bit 0 */
530 u8 acvi_APSD:1; /* bit 1 */
531 u8 ac_bk_APSD:1; /* bit 2 */
532 u8 ac_be_APSD:1; /* bit 3 */
533 u8 q_ack:1; /* bit 4 */
534 u8 max_len:2; /* bit 5-6 */
535 u8 more_data_ack:1; /* bit 7 */
536 } q_STA;
537 u8 val;
538 };
539
540 /* QoS structures */
541 struct iwl_qos_info {
542 int qos_active;
543 union iwl_qos_capabity qos_cap;
544 struct iwl_qosparam_cmd def_qos_parm;
545 };
546
547 /*
548 * Structure should be accessed with sta_lock held. When station addition
549 * is in progress (IWL_STA_UCODE_INPROGRESS) it is possible to access only
550 * the commands (iwl_addsta_cmd and iwl_link_quality_cmd) without sta_lock
551 * held.
552 */
553 struct iwl_station_entry {
554 struct iwl_addsta_cmd sta;
555 struct iwl_tid_data tid[MAX_TID_COUNT];
556 u8 used;
557 struct iwl_hw_key keyinfo;
558 struct iwl_link_quality_cmd *lq;
559 };
560
561 /*
562 * iwl_station_priv: Driver's private station information
563 *
564 * When mac80211 creates a station it reserves some space (hw->sta_data_size)
565 * in the structure for use by driver. This structure is places in that
566 * space.
567 */
568 struct iwl_station_priv {
569 struct iwl_lq_sta lq_sta;
570 atomic_t pending_frames;
571 bool client;
572 bool asleep;
573 };
574
575 /* one for each uCode image (inst/data, boot/init/runtime) */
576 struct fw_desc {
577 void *v_addr; /* access by driver */
578 dma_addr_t p_addr; /* access by card's busmaster DMA */
579 u32 len; /* bytes */
580 };
581
582 /* uCode file layout */
583 struct iwl_ucode_header {
584 __le32 ver; /* major/minor/API/serial */
585 union {
586 struct {
587 __le32 inst_size; /* bytes of runtime code */
588 __le32 data_size; /* bytes of runtime data */
589 __le32 init_size; /* bytes of init code */
590 __le32 init_data_size; /* bytes of init data */
591 __le32 boot_size; /* bytes of bootstrap code */
592 u8 data[0]; /* in same order as sizes */
593 } v1;
594 struct {
595 __le32 build; /* build number */
596 __le32 inst_size; /* bytes of runtime code */
597 __le32 data_size; /* bytes of runtime data */
598 __le32 init_size; /* bytes of init code */
599 __le32 init_data_size; /* bytes of init data */
600 __le32 boot_size; /* bytes of bootstrap code */
601 u8 data[0]; /* in same order as sizes */
602 } v2;
603 } u;
604 };
605 #define UCODE_HEADER_SIZE(ver) ((ver) == 1 ? 24 : 28)
606
607 struct iwl4965_ibss_seq {
608 u8 mac[ETH_ALEN];
609 u16 seq_num;
610 u16 frag_num;
611 unsigned long packet_time;
612 struct list_head list;
613 };
614
615 struct iwl_sensitivity_ranges {
616 u16 min_nrg_cck;
617 u16 max_nrg_cck;
618
619 u16 nrg_th_cck;
620 u16 nrg_th_ofdm;
621
622 u16 auto_corr_min_ofdm;
623 u16 auto_corr_min_ofdm_mrc;
624 u16 auto_corr_min_ofdm_x1;
625 u16 auto_corr_min_ofdm_mrc_x1;
626
627 u16 auto_corr_max_ofdm;
628 u16 auto_corr_max_ofdm_mrc;
629 u16 auto_corr_max_ofdm_x1;
630 u16 auto_corr_max_ofdm_mrc_x1;
631
632 u16 auto_corr_max_cck;
633 u16 auto_corr_max_cck_mrc;
634 u16 auto_corr_min_cck;
635 u16 auto_corr_min_cck_mrc;
636
637 u16 barker_corr_th_min;
638 u16 barker_corr_th_min_mrc;
639 u16 nrg_th_cca;
640 };
641
642
643 #define KELVIN_TO_CELSIUS(x) ((x)-273)
644 #define CELSIUS_TO_KELVIN(x) ((x)+273)
645
646
647 /**
648 * struct iwl_hw_params
649 * @max_txq_num: Max # Tx queues supported
650 * @dma_chnl_num: Number of Tx DMA/FIFO channels
651 * @scd_bc_tbls_size: size of scheduler byte count tables
652 * @tfd_size: TFD size
653 * @tx/rx_chains_num: Number of TX/RX chains
654 * @valid_tx/rx_ant: usable antennas
655 * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
656 * @max_rxq_log: Log-base-2 of max_rxq_size
657 * @rx_page_order: Rx buffer page order
658 * @rx_wrt_ptr_reg: FH{39}_RSCSR_CHNL0_WPTR
659 * @max_stations:
660 * @bcast_sta_id:
661 * @ht40_channel: is 40MHz width possible in band 2.4
662 * BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ)
663 * @sw_crypto: 0 for hw, 1 for sw
664 * @max_xxx_size: for ucode uses
665 * @ct_kill_threshold: temperature threshold
666 * @calib_init_cfg: setup initial calibrations for the hw
667 * @struct iwl_sensitivity_ranges: range of sensitivity values
668 */
669 struct iwl_hw_params {
670 u8 max_txq_num;
671 u8 dma_chnl_num;
672 u16 scd_bc_tbls_size;
673 u32 tfd_size;
674 u8 tx_chains_num;
675 u8 rx_chains_num;
676 u8 valid_tx_ant;
677 u8 valid_rx_ant;
678 u16 max_rxq_size;
679 u16 max_rxq_log;
680 u32 rx_page_order;
681 u32 rx_wrt_ptr_reg;
682 u8 max_stations;
683 u8 bcast_sta_id;
684 u8 ht40_channel;
685 u8 max_beacon_itrvl; /* in 1024 ms */
686 u32 max_inst_size;
687 u32 max_data_size;
688 u32 max_bsm_size;
689 u32 ct_kill_threshold; /* value in hw-dependent units */
690 u32 ct_kill_exit_threshold; /* value in hw-dependent units */
691 /* for 1000, 6000 series and up */
692 u32 calib_init_cfg;
693 const struct iwl_sensitivity_ranges *sens;
694 };
695
696
697 /******************************************************************************
698 *
699 * Functions implemented in core module which are forward declared here
700 * for use by iwl-[4-5].c
701 *
702 * NOTE: The implementation of these functions are not hardware specific
703 * which is why they are in the core module files.
704 *
705 * Naming convention --
706 * iwl_ <-- Is part of iwlwifi
707 * iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
708 * iwl4965_bg_ <-- Called from work queue context
709 * iwl4965_mac_ <-- mac80211 callback
710 *
711 ****************************************************************************/
712 extern void iwl_update_chain_flags(struct iwl_priv *priv);
713 extern int iwl_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src);
714 extern const u8 iwl_bcast_addr[ETH_ALEN];
715 extern int iwl_rxq_stop(struct iwl_priv *priv);
716 extern void iwl_txq_ctx_stop(struct iwl_priv *priv);
717 extern int iwl_queue_space(const struct iwl_queue *q);
718 static inline int iwl_queue_used(const struct iwl_queue *q, int i)
719 {
720 return q->write_ptr >= q->read_ptr ?
721 (i >= q->read_ptr && i < q->write_ptr) :
722 !(i < q->read_ptr && i >= q->write_ptr);
723 }
724
725
726 static inline u8 get_cmd_index(struct iwl_queue *q, u32 index, int is_huge)
727 {
728 /*
729 * This is for init calibration result and scan command which
730 * required buffer > TFD_MAX_PAYLOAD_SIZE,
731 * the big buffer at end of command array
732 */
733 if (is_huge)
734 return q->n_window; /* must be power of 2 */
735
736 /* Otherwise, use normal size buffers */
737 return index & (q->n_window - 1);
738 }
739
740
741 struct iwl_dma_ptr {
742 dma_addr_t dma;
743 void *addr;
744 size_t size;
745 };
746
747 #define IWL_OPERATION_MODE_AUTO 0
748 #define IWL_OPERATION_MODE_HT_ONLY 1
749 #define IWL_OPERATION_MODE_MIXED 2
750 #define IWL_OPERATION_MODE_20MHZ 3
751
752 #define IWL_TX_CRC_SIZE 4
753 #define IWL_TX_DELIMITER_SIZE 4
754
755 #define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
756
757 /* Sensitivity and chain noise calibration */
758 #define INITIALIZATION_VALUE 0xFFFF
759 #define IWL4965_CAL_NUM_BEACONS 20
760 #define IWL_CAL_NUM_BEACONS 16
761 #define MAXIMUM_ALLOWED_PATHLOSS 15
762
763 #define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
764
765 #define MAX_FA_OFDM 50
766 #define MIN_FA_OFDM 5
767 #define MAX_FA_CCK 50
768 #define MIN_FA_CCK 5
769
770 #define AUTO_CORR_STEP_OFDM 1
771
772 #define AUTO_CORR_STEP_CCK 3
773 #define AUTO_CORR_MAX_TH_CCK 160
774
775 #define NRG_DIFF 2
776 #define NRG_STEP_CCK 2
777 #define NRG_MARGIN 8
778 #define MAX_NUMBER_CCK_NO_FA 100
779
780 #define AUTO_CORR_CCK_MIN_VAL_DEF (125)
781
782 #define CHAIN_A 0
783 #define CHAIN_B 1
784 #define CHAIN_C 2
785 #define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
786 #define ALL_BAND_FILTER 0xFF00
787 #define IN_BAND_FILTER 0xFF
788 #define MIN_AVERAGE_NOISE_MAX_VALUE 0xFFFFFFFF
789
790 #define NRG_NUM_PREV_STAT_L 20
791 #define NUM_RX_CHAINS 3
792
793 enum iwl4965_false_alarm_state {
794 IWL_FA_TOO_MANY = 0,
795 IWL_FA_TOO_FEW = 1,
796 IWL_FA_GOOD_RANGE = 2,
797 };
798
799 enum iwl4965_chain_noise_state {
800 IWL_CHAIN_NOISE_ALIVE = 0, /* must be 0 */
801 IWL_CHAIN_NOISE_ACCUMULATE,
802 IWL_CHAIN_NOISE_CALIBRATED,
803 IWL_CHAIN_NOISE_DONE,
804 };
805
806 enum iwl4965_calib_enabled_state {
807 IWL_CALIB_DISABLED = 0, /* must be 0 */
808 IWL_CALIB_ENABLED = 1,
809 };
810
811
812 /*
813 * enum iwl_calib
814 * defines the order in which results of initial calibrations
815 * should be sent to the runtime uCode
816 */
817 enum iwl_calib {
818 IWL_CALIB_XTAL,
819 IWL_CALIB_DC,
820 IWL_CALIB_LO,
821 IWL_CALIB_TX_IQ,
822 IWL_CALIB_TX_IQ_PERD,
823 IWL_CALIB_BASE_BAND,
824 IWL_CALIB_MAX
825 };
826
827 /* Opaque calibration results */
828 struct iwl_calib_result {
829 void *buf;
830 size_t buf_len;
831 };
832
833 enum ucode_type {
834 UCODE_NONE = 0,
835 UCODE_INIT,
836 UCODE_RT
837 };
838
839 /* Sensitivity calib data */
840 struct iwl_sensitivity_data {
841 u32 auto_corr_ofdm;
842 u32 auto_corr_ofdm_mrc;
843 u32 auto_corr_ofdm_x1;
844 u32 auto_corr_ofdm_mrc_x1;
845 u32 auto_corr_cck;
846 u32 auto_corr_cck_mrc;
847
848 u32 last_bad_plcp_cnt_ofdm;
849 u32 last_fa_cnt_ofdm;
850 u32 last_bad_plcp_cnt_cck;
851 u32 last_fa_cnt_cck;
852
853 u32 nrg_curr_state;
854 u32 nrg_prev_state;
855 u32 nrg_value[10];
856 u8 nrg_silence_rssi[NRG_NUM_PREV_STAT_L];
857 u32 nrg_silence_ref;
858 u32 nrg_energy_idx;
859 u32 nrg_silence_idx;
860 u32 nrg_th_cck;
861 s32 nrg_auto_corr_silence_diff;
862 u32 num_in_cck_no_fa;
863 u32 nrg_th_ofdm;
864
865 u16 barker_corr_th_min;
866 u16 barker_corr_th_min_mrc;
867 u16 nrg_th_cca;
868 };
869
870 /* Chain noise (differential Rx gain) calib data */
871 struct iwl_chain_noise_data {
872 u32 active_chains;
873 u32 chain_noise_a;
874 u32 chain_noise_b;
875 u32 chain_noise_c;
876 u32 chain_signal_a;
877 u32 chain_signal_b;
878 u32 chain_signal_c;
879 u16 beacon_count;
880 u8 disconn_array[NUM_RX_CHAINS];
881 u8 delta_gain_code[NUM_RX_CHAINS];
882 u8 radio_write;
883 u8 state;
884 };
885
886 #define EEPROM_SEM_TIMEOUT 10 /* milliseconds */
887 #define EEPROM_SEM_RETRY_LIMIT 1000 /* number of attempts (not time) */
888
889 #define IWL_TRAFFIC_ENTRIES (256)
890 #define IWL_TRAFFIC_ENTRY_SIZE (64)
891
892 enum {
893 MEASUREMENT_READY = (1 << 0),
894 MEASUREMENT_ACTIVE = (1 << 1),
895 };
896
897 enum iwl_nvm_type {
898 NVM_DEVICE_TYPE_EEPROM = 0,
899 NVM_DEVICE_TYPE_OTP,
900 };
901
902 /*
903 * Two types of OTP memory access modes
904 * IWL_OTP_ACCESS_ABSOLUTE - absolute address mode,
905 * based on physical memory addressing
906 * IWL_OTP_ACCESS_RELATIVE - relative address mode,
907 * based on logical memory addressing
908 */
909 enum iwl_access_mode {
910 IWL_OTP_ACCESS_ABSOLUTE,
911 IWL_OTP_ACCESS_RELATIVE,
912 };
913
914 /**
915 * enum iwl_pa_type - Power Amplifier type
916 * @IWL_PA_SYSTEM: based on uCode configuration
917 * @IWL_PA_INTERNAL: use Internal only
918 */
919 enum iwl_pa_type {
920 IWL_PA_SYSTEM = 0,
921 IWL_PA_INTERNAL = 1,
922 };
923
924 /* interrupt statistics */
925 struct isr_statistics {
926 u32 hw;
927 u32 sw;
928 u32 sw_err;
929 u32 sch;
930 u32 alive;
931 u32 rfkill;
932 u32 ctkill;
933 u32 wakeup;
934 u32 rx;
935 u32 rx_handlers[REPLY_MAX];
936 u32 tx;
937 u32 unhandled;
938 };
939
940 #ifdef CONFIG_IWLWIFI_DEBUGFS
941 /* management statistics */
942 enum iwl_mgmt_stats {
943 MANAGEMENT_ASSOC_REQ = 0,
944 MANAGEMENT_ASSOC_RESP,
945 MANAGEMENT_REASSOC_REQ,
946 MANAGEMENT_REASSOC_RESP,
947 MANAGEMENT_PROBE_REQ,
948 MANAGEMENT_PROBE_RESP,
949 MANAGEMENT_BEACON,
950 MANAGEMENT_ATIM,
951 MANAGEMENT_DISASSOC,
952 MANAGEMENT_AUTH,
953 MANAGEMENT_DEAUTH,
954 MANAGEMENT_ACTION,
955 MANAGEMENT_MAX,
956 };
957 /* control statistics */
958 enum iwl_ctrl_stats {
959 CONTROL_BACK_REQ = 0,
960 CONTROL_BACK,
961 CONTROL_PSPOLL,
962 CONTROL_RTS,
963 CONTROL_CTS,
964 CONTROL_ACK,
965 CONTROL_CFEND,
966 CONTROL_CFENDACK,
967 CONTROL_MAX,
968 };
969
970 struct traffic_stats {
971 u32 mgmt[MANAGEMENT_MAX];
972 u32 ctrl[CONTROL_MAX];
973 u32 data_cnt;
974 u64 data_bytes;
975 };
976 #else
977 struct traffic_stats {
978 u64 data_bytes;
979 };
980 #endif
981
982 /*
983 * iwl_switch_rxon: "channel switch" structure
984 *
985 * @ switch_in_progress: channel switch in progress
986 * @ channel: new channel
987 */
988 struct iwl_switch_rxon {
989 bool switch_in_progress;
990 __le16 channel;
991 };
992
993 /*
994 * schedule the timer to wake up every UCODE_TRACE_PERIOD milliseconds
995 * to perform continuous uCode event logging operation if enabled
996 */
997 #define UCODE_TRACE_PERIOD (100)
998
999 /*
1000 * iwl_event_log: current uCode event log position
1001 *
1002 * @ucode_trace: enable/disable ucode continuous trace timer
1003 * @num_wraps: how many times the event buffer wraps
1004 * @next_entry: the entry just before the next one that uCode would fill
1005 * @non_wraps_count: counter for no wrap detected when dump ucode events
1006 * @wraps_once_count: counter for wrap once detected when dump ucode events
1007 * @wraps_more_count: counter for wrap more than once detected
1008 * when dump ucode events
1009 */
1010 struct iwl_event_log {
1011 bool ucode_trace;
1012 u32 num_wraps;
1013 u32 next_entry;
1014 int non_wraps_count;
1015 int wraps_once_count;
1016 int wraps_more_count;
1017 };
1018
1019 /*
1020 * host interrupt timeout value
1021 * used with setting interrupt coalescing timer
1022 * the CSR_INT_COALESCING is an 8 bit register in 32-usec unit
1023 *
1024 * default interrupt coalescing timer is 64 x 32 = 2048 usecs
1025 * default interrupt coalescing calibration timer is 16 x 32 = 512 usecs
1026 */
1027 #define IWL_HOST_INT_TIMEOUT_MAX (0xFF)
1028 #define IWL_HOST_INT_TIMEOUT_DEF (0x40)
1029 #define IWL_HOST_INT_TIMEOUT_MIN (0x0)
1030 #define IWL_HOST_INT_CALIB_TIMEOUT_MAX (0xFF)
1031 #define IWL_HOST_INT_CALIB_TIMEOUT_DEF (0x10)
1032 #define IWL_HOST_INT_CALIB_TIMEOUT_MIN (0x0)
1033
1034 /*
1035 * This is the threshold value of plcp error rate per 100mSecs. It is
1036 * used to set and check for the validity of plcp_delta.
1037 */
1038 #define IWL_MAX_PLCP_ERR_THRESHOLD_MIN (0)
1039 #define IWL_MAX_PLCP_ERR_THRESHOLD_DEF (50)
1040 #define IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF (100)
1041 #define IWL_MAX_PLCP_ERR_EXT_LONG_THRESHOLD_DEF (200)
1042 #define IWL_MAX_PLCP_ERR_THRESHOLD_MAX (255)
1043
1044 #define IWL_DELAY_NEXT_FORCE_RF_RESET (HZ*3)
1045 #define IWL_DELAY_NEXT_FORCE_FW_RELOAD (HZ*5)
1046
1047 enum iwl_reset {
1048 IWL_RF_RESET = 0,
1049 IWL_FW_RESET,
1050 IWL_MAX_FORCE_RESET,
1051 };
1052
1053 struct iwl_force_reset {
1054 int reset_request_count;
1055 int reset_success_count;
1056 int reset_reject_count;
1057 unsigned long reset_duration;
1058 unsigned long last_force_reset_jiffies;
1059 };
1060
1061 struct iwl_priv {
1062
1063 /* ieee device used by generic ieee processing code */
1064 struct ieee80211_hw *hw;
1065 struct ieee80211_channel *ieee_channels;
1066 struct ieee80211_rate *ieee_rates;
1067 struct iwl_cfg *cfg;
1068
1069 /* temporary frame storage list */
1070 struct list_head free_frames;
1071 int frames_count;
1072
1073 enum ieee80211_band band;
1074 int alloc_rxb_page;
1075
1076 void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv,
1077 struct iwl_rx_mem_buffer *rxb);
1078
1079 struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
1080
1081 /* spectrum measurement report caching */
1082 struct iwl_spectrum_notification measure_report;
1083 u8 measurement_status;
1084
1085 /* ucode beacon time */
1086 u32 ucode_beacon_time;
1087 int missed_beacon_threshold;
1088
1089 /* storing the jiffies when the plcp error rate is received */
1090 unsigned long plcp_jiffies;
1091
1092 /* force reset */
1093 struct iwl_force_reset force_reset[IWL_MAX_FORCE_RESET];
1094
1095 /* we allocate array of iwl4965_channel_info for NIC's valid channels.
1096 * Access via channel # using indirect index array */
1097 struct iwl_channel_info *channel_info; /* channel info array */
1098 u8 channel_count; /* # of channels */
1099
1100 /* thermal calibration */
1101 s32 temperature; /* degrees Kelvin */
1102 s32 last_temperature;
1103
1104 /* init calibration results */
1105 struct iwl_calib_result calib_results[IWL_CALIB_MAX];
1106
1107 /* Scan related variables */
1108 unsigned long next_scan_jiffies;
1109 unsigned long scan_start;
1110 unsigned long scan_pass_start;
1111 unsigned long scan_start_tsf;
1112 void *scan;
1113 int scan_bands;
1114 struct cfg80211_scan_request *scan_request;
1115 bool is_internal_short_scan;
1116 u8 scan_tx_ant[IEEE80211_NUM_BANDS];
1117 u8 mgmt_tx_ant;
1118
1119 /* spinlock */
1120 spinlock_t lock; /* protect general shared data */
1121 spinlock_t hcmd_lock; /* protect hcmd */
1122 spinlock_t reg_lock; /* protect hw register access */
1123 struct mutex mutex;
1124 struct mutex sync_cmd_mutex; /* enable serialization of sync commands */
1125
1126 /* basic pci-network driver stuff */
1127 struct pci_dev *pci_dev;
1128
1129 /* pci hardware address support */
1130 void __iomem *hw_base;
1131 u32 hw_rev;
1132 u32 hw_wa_rev;
1133 u8 rev_id;
1134
1135 /* uCode images, save to reload in case of failure */
1136 int fw_index; /* firmware we're trying to load */
1137 u32 ucode_ver; /* version of ucode, copy of
1138 iwl_ucode.ver */
1139 struct fw_desc ucode_code; /* runtime inst */
1140 struct fw_desc ucode_data; /* runtime data original */
1141 struct fw_desc ucode_data_backup; /* runtime data save/restore */
1142 struct fw_desc ucode_init; /* initialization inst */
1143 struct fw_desc ucode_init_data; /* initialization data */
1144 struct fw_desc ucode_boot; /* bootstrap inst */
1145 enum ucode_type ucode_type;
1146 u8 ucode_write_complete; /* the image write is complete */
1147 char firmware_name[25];
1148
1149
1150 struct iwl_rxon_time_cmd rxon_timing;
1151
1152 /* We declare this const so it can only be
1153 * changed via explicit cast within the
1154 * routines that actually update the physical
1155 * hardware */
1156 const struct iwl_rxon_cmd active_rxon;
1157 struct iwl_rxon_cmd staging_rxon;
1158
1159 struct iwl_switch_rxon switch_rxon;
1160
1161 /* 1st responses from initialize and runtime uCode images.
1162 * 4965's initialize alive response contains some calibration data. */
1163 struct iwl_init_alive_resp card_alive_init;
1164 struct iwl_alive_resp card_alive;
1165
1166 unsigned long last_blink_time;
1167 u8 last_blink_rate;
1168 u8 allow_blinking;
1169 u64 led_tpt;
1170
1171 u16 active_rate;
1172
1173 u8 start_calib;
1174 struct iwl_sensitivity_data sensitivity_data;
1175 struct iwl_chain_noise_data chain_noise_data;
1176 __le16 sensitivity_tbl[HD_TABLE_SIZE];
1177
1178 struct iwl_ht_config current_ht_config;
1179 u8 last_phy_res[100];
1180
1181 /* Rate scaling data */
1182 u8 retry_rate;
1183
1184 wait_queue_head_t wait_command_queue;
1185
1186 int activity_timer_active;
1187
1188 /* Rx and Tx DMA processing queues */
1189 struct iwl_rx_queue rxq;
1190 struct iwl_tx_queue *txq;
1191 unsigned long txq_ctx_active_msk;
1192 struct iwl_dma_ptr kw; /* keep warm address */
1193 struct iwl_dma_ptr scd_bc_tbls;
1194
1195 u32 scd_base_addr; /* scheduler sram base address */
1196
1197 unsigned long status;
1198
1199 int last_rx_noise; /* From beacon statistics */
1200
1201 /* counts mgmt, ctl, and data packets */
1202 struct traffic_stats tx_stats;
1203 struct traffic_stats rx_stats;
1204
1205 /* counts interrupts */
1206 struct isr_statistics isr_stats;
1207
1208 struct iwl_power_mgr power_data;
1209 struct iwl_tt_mgmt thermal_throttle;
1210
1211 struct iwl_notif_statistics statistics;
1212 #ifdef CONFIG_IWLWIFI_DEBUG
1213 struct iwl_notif_statistics accum_statistics;
1214 struct iwl_notif_statistics delta_statistics;
1215 struct iwl_notif_statistics max_delta;
1216 #endif
1217
1218 /* context information */
1219 u8 bssid[ETH_ALEN];
1220 u16 rts_threshold;
1221 u8 mac_addr[ETH_ALEN];
1222
1223 /*station table variables */
1224 spinlock_t sta_lock;
1225 int num_stations;
1226 struct iwl_station_entry stations[IWL_STATION_COUNT];
1227 struct iwl_wep_key wep_keys[WEP_KEYS_MAX]; /* protected by mutex */
1228 u8 default_wep_key;
1229 u8 key_mapping_key;
1230 unsigned long ucode_key_table;
1231
1232 /* queue refcounts */
1233 #define IWL_MAX_HW_QUEUES 32
1234 unsigned long queue_stopped[BITS_TO_LONGS(IWL_MAX_HW_QUEUES)];
1235 /* for each AC */
1236 atomic_t queue_stop_count[4];
1237
1238 /* Indication if ieee80211_ops->open has been called */
1239 u8 is_open;
1240
1241 u8 mac80211_registered;
1242
1243 /* eeprom -- this is in the card's little endian byte order */
1244 u8 *eeprom;
1245 int nvm_device_type;
1246 struct iwl_eeprom_calib_info *calib_info;
1247
1248 enum nl80211_iftype iw_mode;
1249
1250 struct sk_buff *ibss_beacon;
1251
1252 /* Last Rx'd beacon timestamp */
1253 u64 timestamp;
1254 u16 beacon_int;
1255 struct ieee80211_vif *vif;
1256
1257 union {
1258 #if defined(CONFIG_IWL3945) || defined(CONFIG_IWL3945_MODULE)
1259 struct {
1260 void *shared_virt;
1261 dma_addr_t shared_phys;
1262
1263 struct delayed_work thermal_periodic;
1264 struct delayed_work rfkill_poll;
1265
1266 struct iwl3945_notif_statistics statistics;
1267
1268 u32 sta_supp_rates;
1269 int last_rx_rssi; /* From Rx packet statistics */
1270
1271 /* Rx'd packet timing information */
1272 u32 last_beacon_time;
1273 u64 last_tsf;
1274
1275 /*
1276 * each calibration channel group in the
1277 * EEPROM has a derived clip setting for
1278 * each rate.
1279 */
1280 const struct iwl3945_clip_group clip_groups[5];
1281
1282 } _3945;
1283 #endif
1284 #if defined(CONFIG_IWLAGN) || defined(CONFIG_IWLAGN_MODULE)
1285 struct {
1286 /* INT ICT Table */
1287 __le32 *ict_tbl;
1288 void *ict_tbl_vir;
1289 dma_addr_t ict_tbl_dma;
1290 dma_addr_t aligned_ict_tbl_dma;
1291 int ict_index;
1292 u32 inta;
1293 bool use_ict;
1294 } _agn;
1295 #endif
1296 };
1297
1298 struct iwl_hw_params hw_params;
1299
1300 u32 inta_mask;
1301 /* Current association information needed to configure the
1302 * hardware */
1303 u16 assoc_id;
1304 u16 assoc_capability;
1305
1306 struct iwl_qos_info qos_data;
1307
1308 struct workqueue_struct *workqueue;
1309
1310 struct work_struct restart;
1311 struct work_struct scan_completed;
1312 struct work_struct rx_replenish;
1313 struct work_struct abort_scan;
1314 struct work_struct request_scan;
1315 struct work_struct beacon_update;
1316 struct work_struct tt_work;
1317 struct work_struct ct_enter;
1318 struct work_struct ct_exit;
1319
1320 struct tasklet_struct irq_tasklet;
1321
1322 struct delayed_work init_alive_start;
1323 struct delayed_work alive_start;
1324 struct delayed_work scan_check;
1325
1326 /* TX Power */
1327 s8 tx_power_user_lmt;
1328 s8 tx_power_device_lmt;
1329 s8 tx_power_lmt_in_half_dbm; /* max tx power in half-dBm format */
1330
1331
1332 #ifdef CONFIG_IWLWIFI_DEBUG
1333 /* debugging info */
1334 u32 debug_level; /* per device debugging will override global
1335 iwl_debug_level if set */
1336 u32 framecnt_to_us;
1337 atomic_t restrict_refcnt;
1338 bool disable_ht40;
1339 #ifdef CONFIG_IWLWIFI_DEBUGFS
1340 /* debugfs */
1341 u16 tx_traffic_idx;
1342 u16 rx_traffic_idx;
1343 u8 *tx_traffic;
1344 u8 *rx_traffic;
1345 struct dentry *debugfs_dir;
1346 u32 dbgfs_sram_offset, dbgfs_sram_len;
1347 #endif /* CONFIG_IWLWIFI_DEBUGFS */
1348 #endif /* CONFIG_IWLWIFI_DEBUG */
1349
1350 struct work_struct txpower_work;
1351 u32 disable_sens_cal;
1352 u32 disable_chain_noise_cal;
1353 u32 disable_tx_power_cal;
1354 struct work_struct run_time_calib_work;
1355 struct timer_list statistics_periodic;
1356 struct timer_list ucode_trace;
1357 bool hw_ready;
1358
1359 struct iwl_event_log event_log;
1360 }; /*iwl_priv */
1361
1362 static inline void iwl_txq_ctx_activate(struct iwl_priv *priv, int txq_id)
1363 {
1364 set_bit(txq_id, &priv->txq_ctx_active_msk);
1365 }
1366
1367 static inline void iwl_txq_ctx_deactivate(struct iwl_priv *priv, int txq_id)
1368 {
1369 clear_bit(txq_id, &priv->txq_ctx_active_msk);
1370 }
1371
1372 #ifdef CONFIG_IWLWIFI_DEBUG
1373 const char *iwl_get_tx_fail_reason(u32 status);
1374 /*
1375 * iwl_get_debug_level: Return active debug level for device
1376 *
1377 * Using sysfs it is possible to set per device debug level. This debug
1378 * level will be used if set, otherwise the global debug level which can be
1379 * set via module parameter is used.
1380 */
1381 static inline u32 iwl_get_debug_level(struct iwl_priv *priv)
1382 {
1383 if (priv->debug_level)
1384 return priv->debug_level;
1385 else
1386 return iwl_debug_level;
1387 }
1388 #else
1389 static inline const char *iwl_get_tx_fail_reason(u32 status) { return ""; }
1390
1391 static inline u32 iwl_get_debug_level(struct iwl_priv *priv)
1392 {
1393 return iwl_debug_level;
1394 }
1395 #endif
1396
1397
1398 static inline struct ieee80211_hdr *iwl_tx_queue_get_hdr(struct iwl_priv *priv,
1399 int txq_id, int idx)
1400 {
1401 if (priv->txq[txq_id].txb[idx].skb[0])
1402 return (struct ieee80211_hdr *)priv->txq[txq_id].
1403 txb[idx].skb[0]->data;
1404 return NULL;
1405 }
1406
1407
1408 static inline int iwl_is_associated(struct iwl_priv *priv)
1409 {
1410 return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
1411 }
1412
1413 static inline int is_channel_valid(const struct iwl_channel_info *ch_info)
1414 {
1415 if (ch_info == NULL)
1416 return 0;
1417 return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
1418 }
1419
1420 static inline int is_channel_radar(const struct iwl_channel_info *ch_info)
1421 {
1422 return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
1423 }
1424
1425 static inline u8 is_channel_a_band(const struct iwl_channel_info *ch_info)
1426 {
1427 return ch_info->band == IEEE80211_BAND_5GHZ;
1428 }
1429
1430 static inline u8 is_channel_bg_band(const struct iwl_channel_info *ch_info)
1431 {
1432 return ch_info->band == IEEE80211_BAND_2GHZ;
1433 }
1434
1435 static inline int is_channel_passive(const struct iwl_channel_info *ch)
1436 {
1437 return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
1438 }
1439
1440 static inline int is_channel_ibss(const struct iwl_channel_info *ch)
1441 {
1442 return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
1443 }
1444
1445 static inline void __iwl_free_pages(struct iwl_priv *priv, struct page *page)
1446 {
1447 __free_pages(page, priv->hw_params.rx_page_order);
1448 priv->alloc_rxb_page--;
1449 }
1450
1451 static inline void iwl_free_pages(struct iwl_priv *priv, unsigned long page)
1452 {
1453 free_pages(page, priv->hw_params.rx_page_order);
1454 priv->alloc_rxb_page--;
1455 }
1456 #endif /* __iwl_dev_h__ */
Linux kernel - Deliverables
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