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[deliverable/linux.git] / drivers / net / wireless / iwlwifi / iwl-dev.h
1 /******************************************************************************
2 *
3 * Copyright(c) 2003 - 2009 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_bg_cfg;
56 extern struct iwl_cfg iwl5100_abg_cfg;
57 extern struct iwl_cfg iwl5150_agn_cfg;
58 extern struct iwl_cfg iwl6000h_2agn_cfg;
59 extern struct iwl_cfg iwl6000h_2abg_cfg;
60 extern struct iwl_cfg iwl6000h_2bg_cfg;
61 extern struct iwl_cfg iwl6000i_2agn_cfg;
62 extern struct iwl_cfg iwl6000i_2abg_cfg;
63 extern struct iwl_cfg iwl6000i_2bg_cfg;
64 extern struct iwl_cfg iwl6000_3agn_cfg;
65 extern struct iwl_cfg iwl6050_2agn_cfg;
66 extern struct iwl_cfg iwl6050_2abg_cfg;
67 extern struct iwl_cfg iwl6050_3agn_cfg;
68 extern struct iwl_cfg iwl1000_bgn_cfg;
69 extern struct iwl_cfg iwl1000_bg_cfg;
70
71 struct iwl_tx_queue;
72
73 /* shared structures from iwl-5000.c */
74 extern struct iwl_mod_params iwl50_mod_params;
75 extern struct iwl_ucode_ops iwl5000_ucode;
76 extern struct iwl_lib_ops iwl5000_lib;
77 extern struct iwl_hcmd_ops iwl5000_hcmd;
78 extern struct iwl_hcmd_utils_ops iwl5000_hcmd_utils;
79
80 /* shared functions from iwl-5000.c */
81 extern u16 iwl5000_get_hcmd_size(u8 cmd_id, u16 len);
82 extern u16 iwl5000_build_addsta_hcmd(const struct iwl_addsta_cmd *cmd,
83 u8 *data);
84 extern void iwl5000_rts_tx_cmd_flag(struct ieee80211_tx_info *info,
85 __le32 *tx_flags);
86 extern int iwl5000_calc_rssi(struct iwl_priv *priv,
87 struct iwl_rx_phy_res *rx_resp);
88 extern int iwl5000_apm_init(struct iwl_priv *priv);
89 extern int iwl5000_apm_reset(struct iwl_priv *priv);
90 extern void iwl5000_nic_config(struct iwl_priv *priv);
91 extern u16 iwl5000_eeprom_calib_version(struct iwl_priv *priv);
92 extern const u8 *iwl5000_eeprom_query_addr(const struct iwl_priv *priv,
93 size_t offset);
94 extern void iwl5000_txq_update_byte_cnt_tbl(struct iwl_priv *priv,
95 struct iwl_tx_queue *txq,
96 u16 byte_cnt);
97 extern void iwl5000_txq_inval_byte_cnt_tbl(struct iwl_priv *priv,
98 struct iwl_tx_queue *txq);
99 extern int iwl5000_load_ucode(struct iwl_priv *priv);
100 extern void iwl5000_init_alive_start(struct iwl_priv *priv);
101 extern int iwl5000_alive_notify(struct iwl_priv *priv);
102 extern int iwl5000_hw_set_hw_params(struct iwl_priv *priv);
103 extern int iwl5000_txq_agg_enable(struct iwl_priv *priv, int txq_id,
104 int tx_fifo, int sta_id, int tid, u16 ssn_idx);
105 extern int iwl5000_txq_agg_disable(struct iwl_priv *priv, u16 txq_id,
106 u16 ssn_idx, u8 tx_fifo);
107 extern void iwl5000_txq_set_sched(struct iwl_priv *priv, u32 mask);
108 extern void iwl5000_setup_deferred_work(struct iwl_priv *priv);
109 extern void iwl5000_rx_handler_setup(struct iwl_priv *priv);
110 extern int iwl5000_hw_valid_rtc_data_addr(u32 addr);
111 extern int iwl5000_send_tx_power(struct iwl_priv *priv);
112 extern void iwl5000_temperature(struct iwl_priv *priv);
113
114 /* CT-KILL constants */
115 #define CT_KILL_THRESHOLD_LEGACY 110 /* in Celsius */
116 #define CT_KILL_THRESHOLD 114 /* in Celsius */
117 #define CT_KILL_EXIT_THRESHOLD 95 /* in Celsius */
118
119 /* Default noise level to report when noise measurement is not available.
120 * This may be because we're:
121 * 1) Not associated (4965, no beacon statistics being sent to driver)
122 * 2) Scanning (noise measurement does not apply to associated channel)
123 * 3) Receiving CCK (3945 delivers noise info only for OFDM frames)
124 * Use default noise value of -127 ... this is below the range of measurable
125 * Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
126 * Also, -127 works better than 0 when averaging frames with/without
127 * noise info (e.g. averaging might be done in app); measured dBm values are
128 * always negative ... using a negative value as the default keeps all
129 * averages within an s8's (used in some apps) range of negative values. */
130 #define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
131
132 /*
133 * RTS threshold here is total size [2347] minus 4 FCS bytes
134 * Per spec:
135 * a value of 0 means RTS on all data/management packets
136 * a value > max MSDU size means no RTS
137 * else RTS for data/management frames where MPDU is larger
138 * than RTS value.
139 */
140 #define DEFAULT_RTS_THRESHOLD 2347U
141 #define MIN_RTS_THRESHOLD 0U
142 #define MAX_RTS_THRESHOLD 2347U
143 #define MAX_MSDU_SIZE 2304U
144 #define MAX_MPDU_SIZE 2346U
145 #define DEFAULT_BEACON_INTERVAL 100U
146 #define DEFAULT_SHORT_RETRY_LIMIT 7U
147 #define DEFAULT_LONG_RETRY_LIMIT 4U
148
149 struct iwl_rx_mem_buffer {
150 dma_addr_t real_dma_addr;
151 dma_addr_t aligned_dma_addr;
152 struct sk_buff *skb;
153 struct list_head list;
154 };
155
156 /* defined below */
157 struct iwl_device_cmd;
158
159 struct iwl_cmd_meta {
160 /* only for SYNC commands, iff the reply skb is wanted */
161 struct iwl_host_cmd *source;
162 /*
163 * only for ASYNC commands
164 * (which is somewhat stupid -- look at iwl-sta.c for instance
165 * which duplicates a bunch of code because the callback isn't
166 * invoked for SYNC commands, if it were and its result passed
167 * through it would be simpler...)
168 */
169 void (*callback)(struct iwl_priv *priv,
170 struct iwl_device_cmd *cmd,
171 struct sk_buff *skb);
172
173 /* The CMD_SIZE_HUGE flag bit indicates that the command
174 * structure is stored at the end of the shared queue memory. */
175 u32 flags;
176
177 DECLARE_PCI_UNMAP_ADDR(mapping)
178 DECLARE_PCI_UNMAP_LEN(len)
179 };
180
181 /*
182 * Generic queue structure
183 *
184 * Contains common data for Rx and Tx queues
185 */
186 struct iwl_queue {
187 int n_bd; /* number of BDs in this queue */
188 int write_ptr; /* 1-st empty entry (index) host_w*/
189 int read_ptr; /* last used entry (index) host_r*/
190 dma_addr_t dma_addr; /* physical addr for BD's */
191 int n_window; /* safe queue window */
192 u32 id;
193 int low_mark; /* low watermark, resume queue if free
194 * space more than this */
195 int high_mark; /* high watermark, stop queue if free
196 * space less than this */
197 } __attribute__ ((packed));
198
199 /* One for each TFD */
200 struct iwl_tx_info {
201 struct sk_buff *skb[IWL_NUM_OF_TBS - 1];
202 };
203
204 /**
205 * struct iwl_tx_queue - Tx Queue for DMA
206 * @q: generic Rx/Tx queue descriptor
207 * @bd: base of circular buffer of TFDs
208 * @cmd: array of command/TX buffer pointers
209 * @meta: array of meta data for each command/tx buffer
210 * @dma_addr_cmd: physical address of cmd/tx buffer array
211 * @txb: array of per-TFD driver data
212 * @need_update: indicates need to update read/write index
213 * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
214 *
215 * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
216 * descriptors) and required locking structures.
217 */
218 #define TFD_TX_CMD_SLOTS 256
219 #define TFD_CMD_SLOTS 32
220
221 struct iwl_tx_queue {
222 struct iwl_queue q;
223 void *tfds;
224 struct iwl_device_cmd **cmd;
225 struct iwl_cmd_meta *meta;
226 struct iwl_tx_info *txb;
227 u8 need_update;
228 u8 sched_retry;
229 u8 active;
230 u8 swq_id;
231 };
232
233 #define IWL_NUM_SCAN_RATES (2)
234
235 struct iwl4965_channel_tgd_info {
236 u8 type;
237 s8 max_power;
238 };
239
240 struct iwl4965_channel_tgh_info {
241 s64 last_radar_time;
242 };
243
244 #define IWL4965_MAX_RATE (33)
245
246 struct iwl3945_clip_group {
247 /* maximum power level to prevent clipping for each rate, derived by
248 * us from this band's saturation power in EEPROM */
249 const s8 clip_powers[IWL_MAX_RATES];
250 };
251
252 /* current Tx power values to use, one for each rate for each channel.
253 * requested power is limited by:
254 * -- regulatory EEPROM limits for this channel
255 * -- hardware capabilities (clip-powers)
256 * -- spectrum management
257 * -- user preference (e.g. iwconfig)
258 * when requested power is set, base power index must also be set. */
259 struct iwl3945_channel_power_info {
260 struct iwl3945_tx_power tpc; /* actual radio and DSP gain settings */
261 s8 power_table_index; /* actual (compenst'd) index into gain table */
262 s8 base_power_index; /* gain index for power at factory temp. */
263 s8 requested_power; /* power (dBm) requested for this chnl/rate */
264 };
265
266 /* current scan Tx power values to use, one for each scan rate for each
267 * channel. */
268 struct iwl3945_scan_power_info {
269 struct iwl3945_tx_power tpc; /* actual radio and DSP gain settings */
270 s8 power_table_index; /* actual (compenst'd) index into gain table */
271 s8 requested_power; /* scan pwr (dBm) requested for chnl/rate */
272 };
273
274 /*
275 * One for each channel, holds all channel setup data
276 * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
277 * with one another!
278 */
279 struct iwl_channel_info {
280 struct iwl4965_channel_tgd_info tgd;
281 struct iwl4965_channel_tgh_info tgh;
282 struct iwl_eeprom_channel eeprom; /* EEPROM regulatory limit */
283 struct iwl_eeprom_channel ht40_eeprom; /* EEPROM regulatory limit for
284 * HT40 channel */
285
286 u8 channel; /* channel number */
287 u8 flags; /* flags copied from EEPROM */
288 s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
289 s8 curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) limit */
290 s8 min_power; /* always 0 */
291 s8 scan_power; /* (dBm) regul. eeprom, direct scans, any rate */
292
293 u8 group_index; /* 0-4, maps channel to group1/2/3/4/5 */
294 u8 band_index; /* 0-4, maps channel to band1/2/3/4/5 */
295 enum ieee80211_band band;
296
297 /* HT40 channel info */
298 s8 ht40_max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
299 s8 ht40_curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) */
300 s8 ht40_min_power; /* always 0 */
301 s8 ht40_scan_power; /* (dBm) eeprom, direct scans, any rate */
302 u8 ht40_flags; /* flags copied from EEPROM */
303 u8 ht40_extension_channel; /* HT_IE_EXT_CHANNEL_* */
304
305 /* Radio/DSP gain settings for each "normal" data Tx rate.
306 * These include, in addition to RF and DSP gain, a few fields for
307 * remembering/modifying gain settings (indexes). */
308 struct iwl3945_channel_power_info power_info[IWL4965_MAX_RATE];
309
310 /* Radio/DSP gain settings for each scan rate, for directed scans. */
311 struct iwl3945_scan_power_info scan_pwr_info[IWL_NUM_SCAN_RATES];
312 };
313
314 #define IWL_TX_FIFO_AC0 0
315 #define IWL_TX_FIFO_AC1 1
316 #define IWL_TX_FIFO_AC2 2
317 #define IWL_TX_FIFO_AC3 3
318 #define IWL_TX_FIFO_HCCA_1 5
319 #define IWL_TX_FIFO_HCCA_2 6
320 #define IWL_TX_FIFO_NONE 7
321
322 /* Minimum number of queues. MAX_NUM is defined in hw specific files.
323 * Set the minimum to accommodate the 4 standard TX queues, 1 command
324 * queue, 2 (unused) HCCA queues, and 4 HT queues (one for each AC) */
325 #define IWL_MIN_NUM_QUEUES 10
326
327 /* Power management (not Tx power) structures */
328
329 enum iwl_pwr_src {
330 IWL_PWR_SRC_VMAIN,
331 IWL_PWR_SRC_VAUX,
332 };
333
334 #define IEEE80211_DATA_LEN 2304
335 #define IEEE80211_4ADDR_LEN 30
336 #define IEEE80211_HLEN (IEEE80211_4ADDR_LEN)
337 #define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
338
339 struct iwl_frame {
340 union {
341 struct ieee80211_hdr frame;
342 struct iwl_tx_beacon_cmd beacon;
343 u8 raw[IEEE80211_FRAME_LEN];
344 u8 cmd[360];
345 } u;
346 struct list_head list;
347 };
348
349 #define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
350 #define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
351 #define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
352
353 enum {
354 CMD_SYNC = 0,
355 CMD_SIZE_NORMAL = 0,
356 CMD_NO_SKB = 0,
357 CMD_SIZE_HUGE = (1 << 0),
358 CMD_ASYNC = (1 << 1),
359 CMD_WANT_SKB = (1 << 2),
360 };
361
362 #define IWL_CMD_MAX_PAYLOAD 320
363
364 /**
365 * struct iwl_device_cmd
366 *
367 * For allocation of the command and tx queues, this establishes the overall
368 * size of the largest command we send to uCode, except for a scan command
369 * (which is relatively huge; space is allocated separately).
370 */
371 struct iwl_device_cmd {
372 struct iwl_cmd_header hdr; /* uCode API */
373 union {
374 u32 flags;
375 u8 val8;
376 u16 val16;
377 u32 val32;
378 struct iwl_tx_cmd tx;
379 u8 payload[IWL_CMD_MAX_PAYLOAD];
380 } __attribute__ ((packed)) cmd;
381 } __attribute__ ((packed));
382
383 #define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_device_cmd))
384
385
386 struct iwl_host_cmd {
387 const void *data;
388 struct sk_buff *reply_skb;
389 void (*callback)(struct iwl_priv *priv,
390 struct iwl_device_cmd *cmd,
391 struct sk_buff *skb);
392 u32 flags;
393 u16 len;
394 u8 id;
395 };
396
397 /*
398 * RX related structures and functions
399 */
400 #define RX_FREE_BUFFERS 64
401 #define RX_LOW_WATERMARK 8
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 /* BSS related data */
514 u8 extension_chan_offset;
515 u8 ht_protection;
516 u8 non_GF_STA_present;
517 };
518
519 union iwl_qos_capabity {
520 struct {
521 u8 edca_count:4; /* bit 0-3 */
522 u8 q_ack:1; /* bit 4 */
523 u8 queue_request:1; /* bit 5 */
524 u8 txop_request:1; /* bit 6 */
525 u8 reserved:1; /* bit 7 */
526 } q_AP;
527 struct {
528 u8 acvo_APSD:1; /* bit 0 */
529 u8 acvi_APSD:1; /* bit 1 */
530 u8 ac_bk_APSD:1; /* bit 2 */
531 u8 ac_be_APSD:1; /* bit 3 */
532 u8 q_ack:1; /* bit 4 */
533 u8 max_len:2; /* bit 5-6 */
534 u8 more_data_ack:1; /* bit 7 */
535 } q_STA;
536 u8 val;
537 };
538
539 /* QoS structures */
540 struct iwl_qos_info {
541 int qos_active;
542 union iwl_qos_capabity qos_cap;
543 struct iwl_qosparam_cmd def_qos_parm;
544 };
545
546 #define STA_PS_STATUS_WAKE 0
547 #define STA_PS_STATUS_SLEEP 1
548
549
550 struct iwl3945_station_entry {
551 struct iwl3945_addsta_cmd sta;
552 struct iwl_tid_data tid[MAX_TID_COUNT];
553 u8 used;
554 u8 ps_status;
555 struct iwl_hw_key keyinfo;
556 };
557
558 struct iwl_station_entry {
559 struct iwl_addsta_cmd sta;
560 struct iwl_tid_data tid[MAX_TID_COUNT];
561 u8 used;
562 u8 ps_status;
563 struct iwl_hw_key keyinfo;
564 };
565
566 /* one for each uCode image (inst/data, boot/init/runtime) */
567 struct fw_desc {
568 void *v_addr; /* access by driver */
569 dma_addr_t p_addr; /* access by card's busmaster DMA */
570 u32 len; /* bytes */
571 };
572
573 /* uCode file layout */
574 struct iwl_ucode_header {
575 __le32 ver; /* major/minor/API/serial */
576 union {
577 struct {
578 __le32 inst_size; /* bytes of runtime code */
579 __le32 data_size; /* bytes of runtime data */
580 __le32 init_size; /* bytes of init code */
581 __le32 init_data_size; /* bytes of init data */
582 __le32 boot_size; /* bytes of bootstrap code */
583 u8 data[0]; /* in same order as sizes */
584 } v1;
585 struct {
586 __le32 build; /* build number */
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 } v2;
594 } u;
595 };
596 #define UCODE_HEADER_SIZE(ver) ((ver) == 1 ? 24 : 28)
597
598 struct iwl4965_ibss_seq {
599 u8 mac[ETH_ALEN];
600 u16 seq_num;
601 u16 frag_num;
602 unsigned long packet_time;
603 struct list_head list;
604 };
605
606 struct iwl_sensitivity_ranges {
607 u16 min_nrg_cck;
608 u16 max_nrg_cck;
609
610 u16 nrg_th_cck;
611 u16 nrg_th_ofdm;
612
613 u16 auto_corr_min_ofdm;
614 u16 auto_corr_min_ofdm_mrc;
615 u16 auto_corr_min_ofdm_x1;
616 u16 auto_corr_min_ofdm_mrc_x1;
617
618 u16 auto_corr_max_ofdm;
619 u16 auto_corr_max_ofdm_mrc;
620 u16 auto_corr_max_ofdm_x1;
621 u16 auto_corr_max_ofdm_mrc_x1;
622
623 u16 auto_corr_max_cck;
624 u16 auto_corr_max_cck_mrc;
625 u16 auto_corr_min_cck;
626 u16 auto_corr_min_cck_mrc;
627 };
628
629
630 #define KELVIN_TO_CELSIUS(x) ((x)-273)
631 #define CELSIUS_TO_KELVIN(x) ((x)+273)
632
633
634 /**
635 * struct iwl_hw_params
636 * @max_txq_num: Max # Tx queues supported
637 * @dma_chnl_num: Number of Tx DMA/FIFO channels
638 * @scd_bc_tbls_size: size of scheduler byte count tables
639 * @tfd_size: TFD size
640 * @tx/rx_chains_num: Number of TX/RX chains
641 * @valid_tx/rx_ant: usable antennas
642 * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
643 * @max_rxq_log: Log-base-2 of max_rxq_size
644 * @rx_buf_size: Rx buffer size
645 * @rx_wrt_ptr_reg: FH{39}_RSCSR_CHNL0_WPTR
646 * @max_stations:
647 * @bcast_sta_id:
648 * @ht40_channel: is 40MHz width possible in band 2.4
649 * BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ)
650 * @sw_crypto: 0 for hw, 1 for sw
651 * @max_xxx_size: for ucode uses
652 * @ct_kill_threshold: temperature threshold
653 * @calib_init_cfg: setup initial calibrations for the hw
654 * @struct iwl_sensitivity_ranges: range of sensitivity values
655 */
656 struct iwl_hw_params {
657 u8 max_txq_num;
658 u8 dma_chnl_num;
659 u16 scd_bc_tbls_size;
660 u32 tfd_size;
661 u8 tx_chains_num;
662 u8 rx_chains_num;
663 u8 valid_tx_ant;
664 u8 valid_rx_ant;
665 u16 max_rxq_size;
666 u16 max_rxq_log;
667 u32 rx_buf_size;
668 u32 rx_wrt_ptr_reg;
669 u32 max_pkt_size;
670 u8 max_stations;
671 u8 bcast_sta_id;
672 u8 ht40_channel;
673 u8 max_beacon_itrvl; /* in 1024 ms */
674 u32 max_inst_size;
675 u32 max_data_size;
676 u32 max_bsm_size;
677 u32 ct_kill_threshold; /* value in hw-dependent units */
678 u32 ct_kill_exit_threshold; /* value in hw-dependent units */
679 /* for 1000, 6000 series and up */
680 u32 calib_init_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 * iwl4965_bg_ <-- Called from work queue context
697 * iwl4965_mac_ <-- mac80211 callback
698 *
699 ****************************************************************************/
700 extern void iwl_update_chain_flags(struct iwl_priv *priv);
701 extern int iwl_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src);
702 extern const u8 iwl_bcast_addr[ETH_ALEN];
703 extern int iwl_rxq_stop(struct iwl_priv *priv);
704 extern void iwl_txq_ctx_stop(struct iwl_priv *priv);
705 extern int iwl_queue_space(const struct iwl_queue *q);
706 static inline int iwl_queue_used(const struct iwl_queue *q, int i)
707 {
708 return q->write_ptr > q->read_ptr ?
709 (i >= q->read_ptr && i < q->write_ptr) :
710 !(i < q->read_ptr && i >= q->write_ptr);
711 }
712
713
714 static inline u8 get_cmd_index(struct iwl_queue *q, u32 index, int is_huge)
715 {
716 /* This is for scan command, the big buffer at end of command array */
717 if (is_huge)
718 return q->n_window; /* must be power of 2 */
719
720 /* Otherwise, use normal size buffers */
721 return index & (q->n_window - 1);
722 }
723
724
725 struct iwl_dma_ptr {
726 dma_addr_t dma;
727 void *addr;
728 size_t size;
729 };
730
731 #define IWL_OPERATION_MODE_AUTO 0
732 #define IWL_OPERATION_MODE_HT_ONLY 1
733 #define IWL_OPERATION_MODE_MIXED 2
734 #define IWL_OPERATION_MODE_20MHZ 3
735
736 #define IWL_TX_CRC_SIZE 4
737 #define IWL_TX_DELIMITER_SIZE 4
738
739 #define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
740
741 /* Sensitivity and chain noise calibration */
742 #define INITIALIZATION_VALUE 0xFFFF
743 #define IWL4965_CAL_NUM_BEACONS 20
744 #define IWL_CAL_NUM_BEACONS 16
745 #define MAXIMUM_ALLOWED_PATHLOSS 15
746
747 #define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
748
749 #define MAX_FA_OFDM 50
750 #define MIN_FA_OFDM 5
751 #define MAX_FA_CCK 50
752 #define MIN_FA_CCK 5
753
754 #define AUTO_CORR_STEP_OFDM 1
755
756 #define AUTO_CORR_STEP_CCK 3
757 #define AUTO_CORR_MAX_TH_CCK 160
758
759 #define NRG_DIFF 2
760 #define NRG_STEP_CCK 2
761 #define NRG_MARGIN 8
762 #define MAX_NUMBER_CCK_NO_FA 100
763
764 #define AUTO_CORR_CCK_MIN_VAL_DEF (125)
765
766 #define CHAIN_A 0
767 #define CHAIN_B 1
768 #define CHAIN_C 2
769 #define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
770 #define ALL_BAND_FILTER 0xFF00
771 #define IN_BAND_FILTER 0xFF
772 #define MIN_AVERAGE_NOISE_MAX_VALUE 0xFFFFFFFF
773
774 #define NRG_NUM_PREV_STAT_L 20
775 #define NUM_RX_CHAINS 3
776
777 enum iwl4965_false_alarm_state {
778 IWL_FA_TOO_MANY = 0,
779 IWL_FA_TOO_FEW = 1,
780 IWL_FA_GOOD_RANGE = 2,
781 };
782
783 enum iwl4965_chain_noise_state {
784 IWL_CHAIN_NOISE_ALIVE = 0, /* must be 0 */
785 IWL_CHAIN_NOISE_ACCUMULATE,
786 IWL_CHAIN_NOISE_CALIBRATED,
787 IWL_CHAIN_NOISE_DONE,
788 };
789
790 enum iwl4965_calib_enabled_state {
791 IWL_CALIB_DISABLED = 0, /* must be 0 */
792 IWL_CALIB_ENABLED = 1,
793 };
794
795
796 /*
797 * enum iwl_calib
798 * defines the order in which results of initial calibrations
799 * should be sent to the runtime uCode
800 */
801 enum iwl_calib {
802 IWL_CALIB_XTAL,
803 IWL_CALIB_DC,
804 IWL_CALIB_LO,
805 IWL_CALIB_TX_IQ,
806 IWL_CALIB_TX_IQ_PERD,
807 IWL_CALIB_BASE_BAND,
808 IWL_CALIB_MAX
809 };
810
811 /* Opaque calibration results */
812 struct iwl_calib_result {
813 void *buf;
814 size_t buf_len;
815 };
816
817 enum ucode_type {
818 UCODE_NONE = 0,
819 UCODE_INIT,
820 UCODE_RT
821 };
822
823 /* Sensitivity calib data */
824 struct iwl_sensitivity_data {
825 u32 auto_corr_ofdm;
826 u32 auto_corr_ofdm_mrc;
827 u32 auto_corr_ofdm_x1;
828 u32 auto_corr_ofdm_mrc_x1;
829 u32 auto_corr_cck;
830 u32 auto_corr_cck_mrc;
831
832 u32 last_bad_plcp_cnt_ofdm;
833 u32 last_fa_cnt_ofdm;
834 u32 last_bad_plcp_cnt_cck;
835 u32 last_fa_cnt_cck;
836
837 u32 nrg_curr_state;
838 u32 nrg_prev_state;
839 u32 nrg_value[10];
840 u8 nrg_silence_rssi[NRG_NUM_PREV_STAT_L];
841 u32 nrg_silence_ref;
842 u32 nrg_energy_idx;
843 u32 nrg_silence_idx;
844 u32 nrg_th_cck;
845 s32 nrg_auto_corr_silence_diff;
846 u32 num_in_cck_no_fa;
847 u32 nrg_th_ofdm;
848 };
849
850 /* Chain noise (differential Rx gain) calib data */
851 struct iwl_chain_noise_data {
852 u32 active_chains;
853 u32 chain_noise_a;
854 u32 chain_noise_b;
855 u32 chain_noise_c;
856 u32 chain_signal_a;
857 u32 chain_signal_b;
858 u32 chain_signal_c;
859 u16 beacon_count;
860 u8 disconn_array[NUM_RX_CHAINS];
861 u8 delta_gain_code[NUM_RX_CHAINS];
862 u8 radio_write;
863 u8 state;
864 };
865
866 #define EEPROM_SEM_TIMEOUT 10 /* milliseconds */
867 #define EEPROM_SEM_RETRY_LIMIT 1000 /* number of attempts (not time) */
868
869 #define IWL_TRAFFIC_ENTRIES (256)
870 #define IWL_TRAFFIC_ENTRY_SIZE (64)
871
872 enum {
873 MEASUREMENT_READY = (1 << 0),
874 MEASUREMENT_ACTIVE = (1 << 1),
875 };
876
877 enum iwl_nvm_type {
878 NVM_DEVICE_TYPE_EEPROM = 0,
879 NVM_DEVICE_TYPE_OTP,
880 };
881
882 /*
883 * Two types of OTP memory access modes
884 * IWL_OTP_ACCESS_ABSOLUTE - absolute address mode,
885 * based on physical memory addressing
886 * IWL_OTP_ACCESS_RELATIVE - relative address mode,
887 * based on logical memory addressing
888 */
889 enum iwl_access_mode {
890 IWL_OTP_ACCESS_ABSOLUTE,
891 IWL_OTP_ACCESS_RELATIVE,
892 };
893
894 /**
895 * enum iwl_pa_type - Power Amplifier type
896 * @IWL_PA_SYSTEM: based on uCode configuration
897 * @IWL_PA_HYBRID: use both Internal and external PA
898 * @IWL_PA_INTERNAL: use Internal only
899 */
900 enum iwl_pa_type {
901 IWL_PA_SYSTEM = 0,
902 IWL_PA_HYBRID = 1,
903 IWL_PA_INTERNAL = 2,
904 };
905
906 /* interrupt statistics */
907 struct isr_statistics {
908 u32 hw;
909 u32 sw;
910 u32 sw_err;
911 u32 sch;
912 u32 alive;
913 u32 rfkill;
914 u32 ctkill;
915 u32 wakeup;
916 u32 rx;
917 u32 rx_handlers[REPLY_MAX];
918 u32 tx;
919 u32 unhandled;
920 };
921
922 #ifdef CONFIG_IWLWIFI_DEBUGFS
923 /* management statistics */
924 enum iwl_mgmt_stats {
925 MANAGEMENT_ASSOC_REQ = 0,
926 MANAGEMENT_ASSOC_RESP,
927 MANAGEMENT_REASSOC_REQ,
928 MANAGEMENT_REASSOC_RESP,
929 MANAGEMENT_PROBE_REQ,
930 MANAGEMENT_PROBE_RESP,
931 MANAGEMENT_BEACON,
932 MANAGEMENT_ATIM,
933 MANAGEMENT_DISASSOC,
934 MANAGEMENT_AUTH,
935 MANAGEMENT_DEAUTH,
936 MANAGEMENT_ACTION,
937 MANAGEMENT_MAX,
938 };
939 /* control statistics */
940 enum iwl_ctrl_stats {
941 CONTROL_BACK_REQ = 0,
942 CONTROL_BACK,
943 CONTROL_PSPOLL,
944 CONTROL_RTS,
945 CONTROL_CTS,
946 CONTROL_ACK,
947 CONTROL_CFEND,
948 CONTROL_CFENDACK,
949 CONTROL_MAX,
950 };
951
952 struct traffic_stats {
953 u32 mgmt[MANAGEMENT_MAX];
954 u32 ctrl[CONTROL_MAX];
955 u32 data_cnt;
956 u64 data_bytes;
957 };
958 #else
959 struct traffic_stats {
960 u64 data_bytes;
961 };
962 #endif
963
964 #define IWL_MAX_NUM_QUEUES 20 /* FIXME: do dynamic allocation */
965
966 struct iwl_priv {
967
968 /* ieee device used by generic ieee processing code */
969 struct ieee80211_hw *hw;
970 struct ieee80211_channel *ieee_channels;
971 struct ieee80211_rate *ieee_rates;
972 struct iwl_cfg *cfg;
973
974 /* temporary frame storage list */
975 struct list_head free_frames;
976 int frames_count;
977
978 enum ieee80211_band band;
979 int alloc_rxb_skb;
980
981 void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv,
982 struct iwl_rx_mem_buffer *rxb);
983
984 struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
985
986 #if defined(CONFIG_IWLWIFI_SPECTRUM_MEASUREMENT) || defined(CONFIG_IWL3945_SPECTRUM_MEASUREMENT)
987 /* spectrum measurement report caching */
988 struct iwl_spectrum_notification measure_report;
989 u8 measurement_status;
990 #endif
991 /* ucode beacon time */
992 u32 ucode_beacon_time;
993
994 /* we allocate array of iwl4965_channel_info for NIC's valid channels.
995 * Access via channel # using indirect index array */
996 struct iwl_channel_info *channel_info; /* channel info array */
997 u8 channel_count; /* # of channels */
998
999 /* each calibration channel group in the EEPROM has a derived
1000 * clip setting for each rate. 3945 only.*/
1001 const struct iwl3945_clip_group clip39_groups[5];
1002
1003 /* thermal calibration */
1004 s32 temperature; /* degrees Kelvin */
1005 s32 last_temperature;
1006
1007 /* init calibration results */
1008 struct iwl_calib_result calib_results[IWL_CALIB_MAX];
1009
1010 /* Scan related variables */
1011 unsigned long last_scan_jiffies;
1012 unsigned long next_scan_jiffies;
1013 unsigned long scan_start;
1014 unsigned long scan_pass_start;
1015 unsigned long scan_start_tsf;
1016 void *scan;
1017 int scan_bands;
1018 struct cfg80211_scan_request *scan_request;
1019 u8 scan_tx_ant[IEEE80211_NUM_BANDS];
1020 u8 mgmt_tx_ant;
1021
1022 /* spinlock */
1023 spinlock_t lock; /* protect general shared data */
1024 spinlock_t hcmd_lock; /* protect hcmd */
1025 spinlock_t reg_lock; /* protect hw register access */
1026 struct mutex mutex;
1027
1028 /* basic pci-network driver stuff */
1029 struct pci_dev *pci_dev;
1030
1031 /* pci hardware address support */
1032 void __iomem *hw_base;
1033 u32 hw_rev;
1034 u32 hw_wa_rev;
1035 u8 rev_id;
1036
1037 /* uCode images, save to reload in case of failure */
1038 u32 ucode_ver; /* version of ucode, copy of
1039 iwl_ucode.ver */
1040 struct fw_desc ucode_code; /* runtime inst */
1041 struct fw_desc ucode_data; /* runtime data original */
1042 struct fw_desc ucode_data_backup; /* runtime data save/restore */
1043 struct fw_desc ucode_init; /* initialization inst */
1044 struct fw_desc ucode_init_data; /* initialization data */
1045 struct fw_desc ucode_boot; /* bootstrap inst */
1046 enum ucode_type ucode_type;
1047 u8 ucode_write_complete; /* the image write is complete */
1048
1049
1050 struct iwl_rxon_time_cmd rxon_timing;
1051
1052 /* We declare this const so it can only be
1053 * changed via explicit cast within the
1054 * routines that actually update the physical
1055 * hardware */
1056 const struct iwl_rxon_cmd active_rxon;
1057 struct iwl_rxon_cmd staging_rxon;
1058
1059 struct iwl_rxon_cmd recovery_rxon;
1060
1061 /* 1st responses from initialize and runtime uCode images.
1062 * 4965's initialize alive response contains some calibration data. */
1063 struct iwl_init_alive_resp card_alive_init;
1064 struct iwl_alive_resp card_alive;
1065
1066 unsigned long last_blink_time;
1067 u8 last_blink_rate;
1068 u8 allow_blinking;
1069 u64 led_tpt;
1070
1071 u16 active_rate;
1072 u16 active_rate_basic;
1073
1074 u8 assoc_station_added;
1075 u8 start_calib;
1076 struct iwl_sensitivity_data sensitivity_data;
1077 struct iwl_chain_noise_data chain_noise_data;
1078 __le16 sensitivity_tbl[HD_TABLE_SIZE];
1079
1080 struct iwl_ht_config current_ht_config;
1081 u8 last_phy_res[100];
1082
1083 /* Rate scaling data */
1084 s8 data_retry_limit;
1085 u8 retry_rate;
1086
1087 wait_queue_head_t wait_command_queue;
1088
1089 int activity_timer_active;
1090
1091 /* Rx and Tx DMA processing queues */
1092 struct iwl_rx_queue rxq;
1093 struct iwl_tx_queue txq[IWL_MAX_NUM_QUEUES];
1094 unsigned long txq_ctx_active_msk;
1095 struct iwl_dma_ptr kw; /* keep warm address */
1096 struct iwl_dma_ptr scd_bc_tbls;
1097
1098 u32 scd_base_addr; /* scheduler sram base address */
1099
1100 unsigned long status;
1101
1102 int last_rx_rssi; /* From Rx packet statistics */
1103 int last_rx_noise; /* From beacon statistics */
1104
1105 /* counts mgmt, ctl, and data packets */
1106 struct traffic_stats tx_stats;
1107 struct traffic_stats rx_stats;
1108
1109 /* counts interrupts */
1110 struct isr_statistics isr_stats;
1111
1112 struct iwl_power_mgr power_data;
1113 struct iwl_tt_mgmt thermal_throttle;
1114
1115 struct iwl_notif_statistics statistics;
1116 unsigned long last_statistics_time;
1117
1118 /* context information */
1119 u16 rates_mask;
1120
1121 u8 bssid[ETH_ALEN];
1122 u16 rts_threshold;
1123 u8 mac_addr[ETH_ALEN];
1124
1125 /*station table variables */
1126 spinlock_t sta_lock;
1127 int num_stations;
1128 struct iwl_station_entry stations[IWL_STATION_COUNT];
1129 struct iwl_wep_key wep_keys[WEP_KEYS_MAX];
1130 u8 default_wep_key;
1131 u8 key_mapping_key;
1132 unsigned long ucode_key_table;
1133
1134 /* queue refcounts */
1135 #define IWL_MAX_HW_QUEUES 32
1136 unsigned long queue_stopped[BITS_TO_LONGS(IWL_MAX_HW_QUEUES)];
1137 /* for each AC */
1138 atomic_t queue_stop_count[4];
1139
1140 /* Indication if ieee80211_ops->open has been called */
1141 u8 is_open;
1142
1143 u8 mac80211_registered;
1144
1145 /* Rx'd packet timing information */
1146 u32 last_beacon_time;
1147 u64 last_tsf;
1148
1149 /* eeprom */
1150 u8 *eeprom;
1151 int nvm_device_type;
1152 struct iwl_eeprom_calib_info *calib_info;
1153
1154 enum nl80211_iftype iw_mode;
1155
1156 struct sk_buff *ibss_beacon;
1157
1158 /* Last Rx'd beacon timestamp */
1159 u64 timestamp;
1160 u16 beacon_int;
1161 struct ieee80211_vif *vif;
1162
1163 /*Added for 3945 */
1164 void *shared_virt;
1165 dma_addr_t shared_phys;
1166 /*End*/
1167 struct iwl_hw_params hw_params;
1168
1169 /* INT ICT Table */
1170 __le32 *ict_tbl;
1171 dma_addr_t ict_tbl_dma;
1172 dma_addr_t aligned_ict_tbl_dma;
1173 int ict_index;
1174 void *ict_tbl_vir;
1175 u32 inta;
1176 bool use_ict;
1177
1178 u32 inta_mask;
1179 /* Current association information needed to configure the
1180 * hardware */
1181 u16 assoc_id;
1182 u16 assoc_capability;
1183
1184 struct iwl_qos_info qos_data;
1185
1186 struct workqueue_struct *workqueue;
1187
1188 struct work_struct up;
1189 struct work_struct restart;
1190 struct work_struct calibrated_work;
1191 struct work_struct scan_completed;
1192 struct work_struct rx_replenish;
1193 struct work_struct abort_scan;
1194 struct work_struct update_link_led;
1195 struct work_struct auth_work;
1196 struct work_struct report_work;
1197 struct work_struct request_scan;
1198 struct work_struct beacon_update;
1199 struct work_struct tt_work;
1200 struct work_struct ct_enter;
1201 struct work_struct ct_exit;
1202
1203 struct tasklet_struct irq_tasklet;
1204
1205 struct delayed_work init_alive_start;
1206 struct delayed_work alive_start;
1207 struct delayed_work scan_check;
1208
1209 /*For 3945 only*/
1210 struct delayed_work thermal_periodic;
1211 struct delayed_work rfkill_poll;
1212
1213 /* TX Power */
1214 s8 tx_power_user_lmt;
1215 s8 tx_power_device_lmt;
1216
1217
1218 #ifdef CONFIG_IWLWIFI_DEBUG
1219 /* debugging info */
1220 u32 debug_level; /* per device debugging will override global
1221 iwl_debug_level if set */
1222 u32 framecnt_to_us;
1223 atomic_t restrict_refcnt;
1224 bool disable_ht40;
1225 #ifdef CONFIG_IWLWIFI_DEBUGFS
1226 /* debugfs */
1227 u16 tx_traffic_idx;
1228 u16 rx_traffic_idx;
1229 u8 *tx_traffic;
1230 u8 *rx_traffic;
1231 struct iwl_debugfs *dbgfs;
1232 #endif /* CONFIG_IWLWIFI_DEBUGFS */
1233 #endif /* CONFIG_IWLWIFI_DEBUG */
1234
1235 struct work_struct txpower_work;
1236 u32 disable_sens_cal;
1237 u32 disable_chain_noise_cal;
1238 u32 disable_tx_power_cal;
1239 struct work_struct run_time_calib_work;
1240 struct timer_list statistics_periodic;
1241 bool hw_ready;
1242 /*For 3945*/
1243 #define IWL_DEFAULT_TX_POWER 0x0F
1244
1245 struct iwl3945_notif_statistics statistics_39;
1246
1247 u32 sta_supp_rates;
1248 }; /*iwl_priv */
1249
1250 static inline void iwl_txq_ctx_activate(struct iwl_priv *priv, int txq_id)
1251 {
1252 set_bit(txq_id, &priv->txq_ctx_active_msk);
1253 }
1254
1255 static inline void iwl_txq_ctx_deactivate(struct iwl_priv *priv, int txq_id)
1256 {
1257 clear_bit(txq_id, &priv->txq_ctx_active_msk);
1258 }
1259
1260 #ifdef CONFIG_IWLWIFI_DEBUG
1261 const char *iwl_get_tx_fail_reason(u32 status);
1262 /*
1263 * iwl_get_debug_level: Return active debug level for device
1264 *
1265 * Using sysfs it is possible to set per device debug level. This debug
1266 * level will be used if set, otherwise the global debug level which can be
1267 * set via module parameter is used.
1268 */
1269 static inline u32 iwl_get_debug_level(struct iwl_priv *priv)
1270 {
1271 if (priv->debug_level)
1272 return priv->debug_level;
1273 else
1274 return iwl_debug_level;
1275 }
1276 #else
1277 static inline const char *iwl_get_tx_fail_reason(u32 status) { return ""; }
1278
1279 static inline u32 iwl_get_debug_level(struct iwl_priv *priv)
1280 {
1281 return iwl_debug_level;
1282 }
1283 #endif
1284
1285
1286 static inline struct ieee80211_hdr *iwl_tx_queue_get_hdr(struct iwl_priv *priv,
1287 int txq_id, int idx)
1288 {
1289 if (priv->txq[txq_id].txb[idx].skb[0])
1290 return (struct ieee80211_hdr *)priv->txq[txq_id].
1291 txb[idx].skb[0]->data;
1292 return NULL;
1293 }
1294
1295
1296 static inline int iwl_is_associated(struct iwl_priv *priv)
1297 {
1298 return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
1299 }
1300
1301 static inline int is_channel_valid(const struct iwl_channel_info *ch_info)
1302 {
1303 if (ch_info == NULL)
1304 return 0;
1305 return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
1306 }
1307
1308 static inline int is_channel_radar(const struct iwl_channel_info *ch_info)
1309 {
1310 return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
1311 }
1312
1313 static inline u8 is_channel_a_band(const struct iwl_channel_info *ch_info)
1314 {
1315 return ch_info->band == IEEE80211_BAND_5GHZ;
1316 }
1317
1318 static inline u8 is_channel_bg_band(const struct iwl_channel_info *ch_info)
1319 {
1320 return ch_info->band == IEEE80211_BAND_2GHZ;
1321 }
1322
1323 static inline int is_channel_passive(const struct iwl_channel_info *ch)
1324 {
1325 return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
1326 }
1327
1328 static inline int is_channel_ibss(const struct iwl_channel_info *ch)
1329 {
1330 return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
1331 }
1332
1333 #endif /* __iwl_dev_h__ */
Linux kernel - Deliverables
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