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authorLinus Torvalds <torvalds@linux-foundation.org>2008-07-20 20:43:29 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-07-20 20:43:29 -0400
commitdb6d8c7a4027b48d797b369a53f8470aaeed7063 (patch)
treee140c104a89abc2154e1f41a7db8ebecbb6fa0b4 /drivers/net/wireless/iwlwifi/iwl-dev.h
parent3a533374283aea50eab3976d8a6d30532175f009 (diff)
parentfb65a7c091529bfffb1262515252c0d0f6241c5c (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (1232 commits) iucv: Fix bad merging. net_sched: Add size table for qdiscs net_sched: Add accessor function for packet length for qdiscs net_sched: Add qdisc_enqueue wrapper highmem: Export totalhigh_pages. ipv6 mcast: Omit redundant address family checks in ip6_mc_source(). net: Use standard structures for generic socket address structures. ipv6 netns: Make several "global" sysctl variables namespace aware. netns: Use net_eq() to compare net-namespaces for optimization. ipv6: remove unused macros from net/ipv6.h ipv6: remove unused parameter from ip6_ra_control tcp: fix kernel panic with listening_get_next tcp: Remove redundant checks when setting eff_sacks tcp: options clean up tcp: Fix MD5 signatures for non-linear skbs sctp: Update sctp global memory limit allocations. sctp: remove unnecessary byteshifting, calculate directly in big-endian sctp: Allow only 1 listening socket with SO_REUSEADDR sctp: Do not leak memory on multiple listen() calls sctp: Support ipv6only AF_INET6 sockets. ...
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-dev.h')
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-dev.h1175
1 files changed, 1175 insertions, 0 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
new file mode 100644
index 000000000000..4d789e353e3a
--- /dev/null
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -0,0 +1,1175 @@
1/******************************************************************************
2 *
3 * Copyright(c) 2003 - 2008 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 * James P. Ketrenos <ipw2100-admin@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#define DRV_NAME "iwl4965"
40#include "iwl-rfkill.h"
41#include "iwl-eeprom.h"
42#include "iwl-4965-hw.h"
43#include "iwl-csr.h"
44#include "iwl-prph.h"
45#include "iwl-debug.h"
46#include "iwl-led.h"
47#include "iwl-power.h"
48
49/* configuration for the iwl4965 */
50extern struct iwl_cfg iwl4965_agn_cfg;
51extern struct iwl_cfg iwl5300_agn_cfg;
52extern struct iwl_cfg iwl5100_agn_cfg;
53extern struct iwl_cfg iwl5350_agn_cfg;
54extern struct iwl_cfg iwl5100_bg_cfg;
55extern struct iwl_cfg iwl5100_abg_cfg;
56
57/* CT-KILL constants */
58#define CT_KILL_THRESHOLD 110 /* in Celsius */
59
60/* Default noise level to report when noise measurement is not available.
61 * This may be because we're:
62 * 1) Not associated (4965, no beacon statistics being sent to driver)
63 * 2) Scanning (noise measurement does not apply to associated channel)
64 * 3) Receiving CCK (3945 delivers noise info only for OFDM frames)
65 * Use default noise value of -127 ... this is below the range of measurable
66 * Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
67 * Also, -127 works better than 0 when averaging frames with/without
68 * noise info (e.g. averaging might be done in app); measured dBm values are
69 * always negative ... using a negative value as the default keeps all
70 * averages within an s8's (used in some apps) range of negative values. */
71#define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
72
73/*
74 * RTS threshold here is total size [2347] minus 4 FCS bytes
75 * Per spec:
76 * a value of 0 means RTS on all data/management packets
77 * a value > max MSDU size means no RTS
78 * else RTS for data/management frames where MPDU is larger
79 * than RTS value.
80 */
81#define DEFAULT_RTS_THRESHOLD 2347U
82#define MIN_RTS_THRESHOLD 0U
83#define MAX_RTS_THRESHOLD 2347U
84#define MAX_MSDU_SIZE 2304U
85#define MAX_MPDU_SIZE 2346U
86#define DEFAULT_BEACON_INTERVAL 100U
87#define DEFAULT_SHORT_RETRY_LIMIT 7U
88#define DEFAULT_LONG_RETRY_LIMIT 4U
89
90struct iwl_rx_mem_buffer {
91 dma_addr_t dma_addr;
92 struct sk_buff *skb;
93 struct list_head list;
94};
95
96/*
97 * Generic queue structure
98 *
99 * Contains common data for Rx and Tx queues
100 */
101struct iwl_queue {
102 int n_bd; /* number of BDs in this queue */
103 int write_ptr; /* 1-st empty entry (index) host_w*/
104 int read_ptr; /* last used entry (index) host_r*/
105 dma_addr_t dma_addr; /* physical addr for BD's */
106 int n_window; /* safe queue window */
107 u32 id;
108 int low_mark; /* low watermark, resume queue if free
109 * space more than this */
110 int high_mark; /* high watermark, stop queue if free
111 * space less than this */
112} __attribute__ ((packed));
113
114#define MAX_NUM_OF_TBS (20)
115
116/* One for each TFD */
117struct iwl_tx_info {
118 struct sk_buff *skb[MAX_NUM_OF_TBS];
119};
120
121/**
122 * struct iwl_tx_queue - Tx Queue for DMA
123 * @q: generic Rx/Tx queue descriptor
124 * @bd: base of circular buffer of TFDs
125 * @cmd: array of command/Tx buffers
126 * @dma_addr_cmd: physical address of cmd/tx buffer array
127 * @txb: array of per-TFD driver data
128 * @need_update: indicates need to update read/write index
129 * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
130 *
131 * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
132 * descriptors) and required locking structures.
133 */
134struct iwl_tx_queue {
135 struct iwl_queue q;
136 struct iwl_tfd_frame *bd;
137 struct iwl_cmd *cmd;
138 dma_addr_t dma_addr_cmd;
139 struct iwl_tx_info *txb;
140 int need_update;
141 int sched_retry;
142 int active;
143};
144
145#define IWL_NUM_SCAN_RATES (2)
146
147struct iwl4965_channel_tgd_info {
148 u8 type;
149 s8 max_power;
150};
151
152struct iwl4965_channel_tgh_info {
153 s64 last_radar_time;
154};
155
156/*
157 * One for each channel, holds all channel setup data
158 * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
159 * with one another!
160 */
161struct iwl_channel_info {
162 struct iwl4965_channel_tgd_info tgd;
163 struct iwl4965_channel_tgh_info tgh;
164 struct iwl_eeprom_channel eeprom; /* EEPROM regulatory limit */
165 struct iwl_eeprom_channel fat_eeprom; /* EEPROM regulatory limit for
166 * FAT channel */
167
168 u8 channel; /* channel number */
169 u8 flags; /* flags copied from EEPROM */
170 s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
171 s8 curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) limit */
172 s8 min_power; /* always 0 */
173 s8 scan_power; /* (dBm) regul. eeprom, direct scans, any rate */
174
175 u8 group_index; /* 0-4, maps channel to group1/2/3/4/5 */
176 u8 band_index; /* 0-4, maps channel to band1/2/3/4/5 */
177 enum ieee80211_band band;
178
179 /* FAT channel info */
180 s8 fat_max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
181 s8 fat_curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) */
182 s8 fat_min_power; /* always 0 */
183 s8 fat_scan_power; /* (dBm) eeprom, direct scans, any rate */
184 u8 fat_flags; /* flags copied from EEPROM */
185 u8 fat_extension_channel; /* HT_IE_EXT_CHANNEL_* */
186};
187
188struct iwl4965_clip_group {
189 /* maximum power level to prevent clipping for each rate, derived by
190 * us from this band's saturation power in EEPROM */
191 const s8 clip_powers[IWL_MAX_RATES];
192};
193
194#include "iwl-4965-rs.h"
195
196#define IWL_TX_FIFO_AC0 0
197#define IWL_TX_FIFO_AC1 1
198#define IWL_TX_FIFO_AC2 2
199#define IWL_TX_FIFO_AC3 3
200#define IWL_TX_FIFO_HCCA_1 5
201#define IWL_TX_FIFO_HCCA_2 6
202#define IWL_TX_FIFO_NONE 7
203
204/* Minimum number of queues. MAX_NUM is defined in hw specific files */
205#define IWL_MIN_NUM_QUEUES 4
206
207/* Power management (not Tx power) structures */
208
209enum iwl_pwr_src {
210 IWL_PWR_SRC_VMAIN,
211 IWL_PWR_SRC_VAUX,
212};
213
214#define IEEE80211_DATA_LEN 2304
215#define IEEE80211_4ADDR_LEN 30
216#define IEEE80211_HLEN (IEEE80211_4ADDR_LEN)
217#define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
218
219struct iwl_frame {
220 union {
221 struct ieee80211_hdr frame;
222 struct iwl4965_tx_beacon_cmd beacon;
223 u8 raw[IEEE80211_FRAME_LEN];
224 u8 cmd[360];
225 } u;
226 struct list_head list;
227};
228
229#define SEQ_TO_QUEUE(x) ((x >> 8) & 0xbf)
230#define QUEUE_TO_SEQ(x) ((x & 0xbf) << 8)
231#define SEQ_TO_INDEX(x) ((u8)(x & 0xff))
232#define INDEX_TO_SEQ(x) ((u8)(x & 0xff))
233#define SEQ_HUGE_FRAME (0x4000)
234#define SEQ_RX_FRAME __constant_cpu_to_le16(0x8000)
235#define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
236#define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
237#define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
238
239enum {
240 /* CMD_SIZE_NORMAL = 0, */
241 CMD_SIZE_HUGE = (1 << 0),
242 /* CMD_SYNC = 0, */
243 CMD_ASYNC = (1 << 1),
244 /* CMD_NO_SKB = 0, */
245 CMD_WANT_SKB = (1 << 2),
246};
247
248struct iwl_cmd;
249struct iwl_priv;
250
251struct iwl_cmd_meta {
252 struct iwl_cmd_meta *source;
253 union {
254 struct sk_buff *skb;
255 int (*callback)(struct iwl_priv *priv,
256 struct iwl_cmd *cmd, struct sk_buff *skb);
257 } __attribute__ ((packed)) u;
258
259 /* The CMD_SIZE_HUGE flag bit indicates that the command
260 * structure is stored at the end of the shared queue memory. */
261 u32 flags;
262
263} __attribute__ ((packed));
264
265#define IWL_CMD_MAX_PAYLOAD 320
266
267/**
268 * struct iwl_cmd
269 *
270 * For allocation of the command and tx queues, this establishes the overall
271 * size of the largest command we send to uCode, except for a scan command
272 * (which is relatively huge; space is allocated separately).
273 */
274struct iwl_cmd {
275 struct iwl_cmd_meta meta; /* driver data */
276 struct iwl_cmd_header hdr; /* uCode API */
277 union {
278 struct iwl_addsta_cmd addsta;
279 struct iwl_led_cmd led;
280 u32 flags;
281 u8 val8;
282 u16 val16;
283 u32 val32;
284 struct iwl4965_bt_cmd bt;
285 struct iwl4965_rxon_time_cmd rxon_time;
286 struct iwl4965_powertable_cmd powertable;
287 struct iwl_qosparam_cmd qosparam;
288 struct iwl_tx_cmd tx;
289 struct iwl4965_tx_beacon_cmd tx_beacon;
290 struct iwl4965_rxon_assoc_cmd rxon_assoc;
291 struct iwl_rem_sta_cmd rm_sta;
292 u8 *indirect;
293 u8 payload[IWL_CMD_MAX_PAYLOAD];
294 } __attribute__ ((packed)) cmd;
295} __attribute__ ((packed));
296
297struct iwl_host_cmd {
298 u8 id;
299 u16 len;
300 struct iwl_cmd_meta meta;
301 const void *data;
302};
303
304#define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_cmd) - \
305 sizeof(struct iwl_cmd_meta))
306
307/*
308 * RX related structures and functions
309 */
310#define RX_FREE_BUFFERS 64
311#define RX_LOW_WATERMARK 8
312
313#define SUP_RATE_11A_MAX_NUM_CHANNELS 8
314#define SUP_RATE_11B_MAX_NUM_CHANNELS 4
315#define SUP_RATE_11G_MAX_NUM_CHANNELS 12
316
317/**
318 * struct iwl_rx_queue - Rx queue
319 * @processed: Internal index to last handled Rx packet
320 * @read: Shared index to newest available Rx buffer
321 * @write: Shared index to oldest written Rx packet
322 * @free_count: Number of pre-allocated buffers in rx_free
323 * @rx_free: list of free SKBs for use
324 * @rx_used: List of Rx buffers with no SKB
325 * @need_update: flag to indicate we need to update read/write index
326 *
327 * NOTE: rx_free and rx_used are used as a FIFO for iwl_rx_mem_buffers
328 */
329struct iwl_rx_queue {
330 __le32 *bd;
331 dma_addr_t dma_addr;
332 struct iwl_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
333 struct iwl_rx_mem_buffer *queue[RX_QUEUE_SIZE];
334 u32 processed;
335 u32 read;
336 u32 write;
337 u32 free_count;
338 struct list_head rx_free;
339 struct list_head rx_used;
340 int need_update;
341 spinlock_t lock;
342};
343
344#define IWL_SUPPORTED_RATES_IE_LEN 8
345
346#define SCAN_INTERVAL 100
347
348#define MAX_A_CHANNELS 252
349#define MIN_A_CHANNELS 7
350
351#define MAX_B_CHANNELS 14
352#define MIN_B_CHANNELS 1
353
354#define MAX_TID_COUNT 9
355
356#define IWL_INVALID_RATE 0xFF
357#define IWL_INVALID_VALUE -1
358
359/**
360 * struct iwl_ht_agg -- aggregation status while waiting for block-ack
361 * @txq_id: Tx queue used for Tx attempt
362 * @frame_count: # frames attempted by Tx command
363 * @wait_for_ba: Expect block-ack before next Tx reply
364 * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window
365 * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window
366 * @bitmap1: High order, one bit for each frame pending ACK in Tx window
367 * @rate_n_flags: Rate at which Tx was attempted
368 *
369 * If REPLY_TX indicates that aggregation was attempted, driver must wait
370 * for block ack (REPLY_COMPRESSED_BA). This struct stores tx reply info
371 * until block ack arrives.
372 */
373struct iwl_ht_agg {
374 u16 txq_id;
375 u16 frame_count;
376 u16 wait_for_ba;
377 u16 start_idx;
378 u64 bitmap;
379 u32 rate_n_flags;
380#define IWL_AGG_OFF 0
381#define IWL_AGG_ON 1
382#define IWL_EMPTYING_HW_QUEUE_ADDBA 2
383#define IWL_EMPTYING_HW_QUEUE_DELBA 3
384 u8 state;
385};
386
387
388struct iwl_tid_data {
389 u16 seq_number;
390 u16 tfds_in_queue;
391 struct iwl_ht_agg agg;
392};
393
394struct iwl_hw_key {
395 enum ieee80211_key_alg alg;
396 int keylen;
397 u8 keyidx;
398 u8 key[32];
399};
400
401union iwl4965_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_DEF (0x3)
410#define CFG_HT_MPDU_DENSITY_2USEC (0x5)
411#define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_2USEC
412
413struct iwl_ht_info {
414 /* self configuration data */
415 u8 is_ht;
416 u8 supported_chan_width;
417 u16 tx_mimo_ps_mode;
418 u8 is_green_field;
419 u8 sgf; /* HT_SHORT_GI_* short guard interval */
420 u8 max_amsdu_size;
421 u8 ampdu_factor;
422 u8 mpdu_density;
423 u8 supp_mcs_set[16];
424 /* BSS related data */
425 u8 control_channel;
426 u8 extension_chan_offset;
427 u8 tx_chan_width;
428 u8 ht_protection;
429 u8 non_GF_STA_present;
430};
431
432union iwl_qos_capabity {
433 struct {
434 u8 edca_count:4; /* bit 0-3 */
435 u8 q_ack:1; /* bit 4 */
436 u8 queue_request:1; /* bit 5 */
437 u8 txop_request:1; /* bit 6 */
438 u8 reserved:1; /* bit 7 */
439 } q_AP;
440 struct {
441 u8 acvo_APSD:1; /* bit 0 */
442 u8 acvi_APSD:1; /* bit 1 */
443 u8 ac_bk_APSD:1; /* bit 2 */
444 u8 ac_be_APSD:1; /* bit 3 */
445 u8 q_ack:1; /* bit 4 */
446 u8 max_len:2; /* bit 5-6 */
447 u8 more_data_ack:1; /* bit 7 */
448 } q_STA;
449 u8 val;
450};
451
452/* QoS structures */
453struct iwl_qos_info {
454 int qos_enable;
455 int qos_active;
456 union iwl_qos_capabity qos_cap;
457 struct iwl_qosparam_cmd def_qos_parm;
458};
459
460#define STA_PS_STATUS_WAKE 0
461#define STA_PS_STATUS_SLEEP 1
462
463struct iwl_station_entry {
464 struct iwl_addsta_cmd sta;
465 struct iwl_tid_data tid[MAX_TID_COUNT];
466 u8 used;
467 u8 ps_status;
468 struct iwl_hw_key keyinfo;
469};
470
471/* one for each uCode image (inst/data, boot/init/runtime) */
472struct fw_desc {
473 void *v_addr; /* access by driver */
474 dma_addr_t p_addr; /* access by card's busmaster DMA */
475 u32 len; /* bytes */
476};
477
478/* uCode file layout */
479struct iwl_ucode {
480 __le32 ver; /* major/minor/subminor */
481 __le32 inst_size; /* bytes of runtime instructions */
482 __le32 data_size; /* bytes of runtime data */
483 __le32 init_size; /* bytes of initialization instructions */
484 __le32 init_data_size; /* bytes of initialization data */
485 __le32 boot_size; /* bytes of bootstrap instructions */
486 u8 data[0]; /* data in same order as "size" elements */
487};
488
489struct iwl4965_ibss_seq {
490 u8 mac[ETH_ALEN];
491 u16 seq_num;
492 u16 frag_num;
493 unsigned long packet_time;
494 struct list_head list;
495};
496
497struct iwl_sensitivity_ranges {
498 u16 min_nrg_cck;
499 u16 max_nrg_cck;
500
501 u16 nrg_th_cck;
502 u16 nrg_th_ofdm;
503
504 u16 auto_corr_min_ofdm;
505 u16 auto_corr_min_ofdm_mrc;
506 u16 auto_corr_min_ofdm_x1;
507 u16 auto_corr_min_ofdm_mrc_x1;
508
509 u16 auto_corr_max_ofdm;
510 u16 auto_corr_max_ofdm_mrc;
511 u16 auto_corr_max_ofdm_x1;
512 u16 auto_corr_max_ofdm_mrc_x1;
513
514 u16 auto_corr_max_cck;
515 u16 auto_corr_max_cck_mrc;
516 u16 auto_corr_min_cck;
517 u16 auto_corr_min_cck_mrc;
518};
519
520
521#define IWL_FAT_CHANNEL_52 BIT(IEEE80211_BAND_5GHZ)
522
523/**
524 * struct iwl_hw_params
525 * @max_txq_num: Max # Tx queues supported
526 * @tx/rx_chains_num: Number of TX/RX chains
527 * @valid_tx/rx_ant: usable antennas
528 * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
529 * @max_rxq_log: Log-base-2 of max_rxq_size
530 * @rx_buf_size: Rx buffer size
531 * @max_stations:
532 * @bcast_sta_id:
533 * @fat_channel: is 40MHz width possible in band 2.4
534 * BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ)
535 * @sw_crypto: 0 for hw, 1 for sw
536 * @max_xxx_size: for ucode uses
537 * @ct_kill_threshold: temperature threshold
538 * @struct iwl_sensitivity_ranges: range of sensitivity values
539 * @first_ampdu_q: first HW queue available for ampdu
540 */
541struct iwl_hw_params {
542 u16 max_txq_num;
543 u8 tx_chains_num;
544 u8 rx_chains_num;
545 u8 valid_tx_ant;
546 u8 valid_rx_ant;
547 u16 max_rxq_size;
548 u16 max_rxq_log;
549 u32 rx_buf_size;
550 u32 max_pkt_size;
551 u8 max_stations;
552 u8 bcast_sta_id;
553 u8 fat_channel;
554 u8 sw_crypto;
555 u32 max_inst_size;
556 u32 max_data_size;
557 u32 max_bsm_size;
558 u32 ct_kill_threshold; /* value in hw-dependent units */
559 const struct iwl_sensitivity_ranges *sens;
560 u8 first_ampdu_q;
561};
562
563#define HT_SHORT_GI_20MHZ (1 << 0)
564#define HT_SHORT_GI_40MHZ (1 << 1)
565
566
567#define IWL_RX_HDR(x) ((struct iwl4965_rx_frame_hdr *)(\
568 x->u.rx_frame.stats.payload + \
569 x->u.rx_frame.stats.phy_count))
570#define IWL_RX_END(x) ((struct iwl4965_rx_frame_end *)(\
571 IWL_RX_HDR(x)->payload + \
572 le16_to_cpu(IWL_RX_HDR(x)->len)))
573#define IWL_RX_STATS(x) (&x->u.rx_frame.stats)
574#define IWL_RX_DATA(x) (IWL_RX_HDR(x)->payload)
575
576
577/******************************************************************************
578 *
579 * Functions implemented in iwl-base.c which are forward declared here
580 * for use by iwl-*.c
581 *
582 *****************************************************************************/
583struct iwl_addsta_cmd;
584extern int iwl_send_add_sta(struct iwl_priv *priv,
585 struct iwl_addsta_cmd *sta, u8 flags);
586u8 iwl_add_station_flags(struct iwl_priv *priv, const u8 *addr, int is_ap,
587 u8 flags, struct ieee80211_ht_info *ht_info);
588extern unsigned int iwl4965_fill_beacon_frame(struct iwl_priv *priv,
589 struct ieee80211_hdr *hdr,
590 const u8 *dest, int left);
591extern void iwl4965_update_chain_flags(struct iwl_priv *priv);
592int iwl4965_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src);
593
594extern const u8 iwl_bcast_addr[ETH_ALEN];
595
596/******************************************************************************
597 *
598 * Functions implemented in iwl-[34]*.c which are forward declared here
599 * for use by iwl-base.c
600 *
601 * NOTE: The implementation of these functions are hardware specific
602 * which is why they are in the hardware specific files (vs. iwl-base.c)
603 *
604 * Naming convention --
605 * iwl4965_ <-- Its part of iwlwifi (should be changed to iwl4965_)
606 * iwl4965_hw_ <-- Hardware specific (implemented in iwl-XXXX.c by all HW)
607 * iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
608 * iwl4965_bg_ <-- Called from work queue context
609 * iwl4965_mac_ <-- mac80211 callback
610 *
611 ****************************************************************************/
612extern int iwl_rxq_stop(struct iwl_priv *priv);
613extern void iwl_txq_ctx_stop(struct iwl_priv *priv);
614extern unsigned int iwl4965_hw_get_beacon_cmd(struct iwl_priv *priv,
615 struct iwl_frame *frame, u8 rate);
616extern void iwl4965_disable_events(struct iwl_priv *priv);
617
618extern int iwl4965_hw_channel_switch(struct iwl_priv *priv, u16 channel);
619extern int iwl_queue_space(const struct iwl_queue *q);
620static inline int iwl_queue_used(const struct iwl_queue *q, int i)
621{
622 return q->write_ptr > q->read_ptr ?
623 (i >= q->read_ptr && i < q->write_ptr) :
624 !(i < q->read_ptr && i >= q->write_ptr);
625}
626
627
628static inline u8 get_cmd_index(struct iwl_queue *q, u32 index, int is_huge)
629{
630 /* This is for scan command, the big buffer at end of command array */
631 if (is_huge)
632 return q->n_window; /* must be power of 2 */
633
634 /* Otherwise, use normal size buffers */
635 return index & (q->n_window - 1);
636}
637
638
639struct iwl_priv;
640
641/*
642 * Forward declare iwl-4965.c functions for iwl-base.c
643 */
644extern void iwl4965_rf_kill_ct_config(struct iwl_priv *priv);
645
646int iwl4965_mac_ampdu_action(struct ieee80211_hw *hw,
647 enum ieee80211_ampdu_mlme_action action,
648 const u8 *addr, u16 tid, u16 *ssn);
649int iwl4965_check_empty_hw_queue(struct iwl_priv *priv, int sta_id,
650 u8 tid, int txq_id);
651
652/* Structures, enum, and defines specific to the 4965 */
653
654#define IWL_KW_SIZE 0x1000 /*4k */
655
656struct iwl_kw {
657 dma_addr_t dma_addr;
658 void *v_addr;
659 size_t size;
660};
661
662#define IWL_CHANNEL_WIDTH_20MHZ 0
663#define IWL_CHANNEL_WIDTH_40MHZ 1
664
665#define IWL_MIMO_PS_STATIC 0
666#define IWL_MIMO_PS_NONE 3
667#define IWL_MIMO_PS_DYNAMIC 1
668#define IWL_MIMO_PS_INVALID 2
669
670#define IWL_OPERATION_MODE_AUTO 0
671#define IWL_OPERATION_MODE_HT_ONLY 1
672#define IWL_OPERATION_MODE_MIXED 2
673#define IWL_OPERATION_MODE_20MHZ 3
674
675#define IWL_TX_CRC_SIZE 4
676#define IWL_TX_DELIMITER_SIZE 4
677
678#define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
679
680struct iwl4965_lq_mngr {
681 spinlock_t lock;
682 s32 max_window_size;
683 s32 *expected_tpt;
684 u8 *next_higher_rate;
685 u8 *next_lower_rate;
686 unsigned long stamp;
687 unsigned long stamp_last;
688 u32 flush_time;
689 u32 tx_packets;
690};
691
692/* Sensitivity and chain noise calibration */
693#define INTERFERENCE_DATA_AVAILABLE __constant_cpu_to_le32(1)
694#define INITIALIZATION_VALUE 0xFFFF
695#define CAL_NUM_OF_BEACONS 20
696#define MAXIMUM_ALLOWED_PATHLOSS 15
697
698#define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
699
700#define MAX_FA_OFDM 50
701#define MIN_FA_OFDM 5
702#define MAX_FA_CCK 50
703#define MIN_FA_CCK 5
704
705#define AUTO_CORR_STEP_OFDM 1
706
707#define AUTO_CORR_STEP_CCK 3
708#define AUTO_CORR_MAX_TH_CCK 160
709
710#define NRG_DIFF 2
711#define NRG_STEP_CCK 2
712#define NRG_MARGIN 8
713#define MAX_NUMBER_CCK_NO_FA 100
714
715#define AUTO_CORR_CCK_MIN_VAL_DEF (125)
716
717#define CHAIN_A 0
718#define CHAIN_B 1
719#define CHAIN_C 2
720#define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
721#define ALL_BAND_FILTER 0xFF00
722#define IN_BAND_FILTER 0xFF
723#define MIN_AVERAGE_NOISE_MAX_VALUE 0xFFFFFFFF
724
725#define NRG_NUM_PREV_STAT_L 20
726#define NUM_RX_CHAINS 3
727
728enum iwl4965_false_alarm_state {
729 IWL_FA_TOO_MANY = 0,
730 IWL_FA_TOO_FEW = 1,
731 IWL_FA_GOOD_RANGE = 2,
732};
733
734enum iwl4965_chain_noise_state {
735 IWL_CHAIN_NOISE_ALIVE = 0, /* must be 0 */
736 IWL_CHAIN_NOISE_ACCUMULATE = 1,
737 IWL_CHAIN_NOISE_CALIBRATED = 2,
738};
739
740enum iwl4965_calib_enabled_state {
741 IWL_CALIB_DISABLED = 0, /* must be 0 */
742 IWL_CALIB_ENABLED = 1,
743};
744
745struct statistics_general_data {
746 u32 beacon_silence_rssi_a;
747 u32 beacon_silence_rssi_b;
748 u32 beacon_silence_rssi_c;
749 u32 beacon_energy_a;
750 u32 beacon_energy_b;
751 u32 beacon_energy_c;
752};
753
754struct iwl_calib_results {
755 void *tx_iq_res;
756 void *tx_iq_perd_res;
757 void *lo_res;
758 u32 tx_iq_res_len;
759 u32 tx_iq_perd_res_len;
760 u32 lo_res_len;
761};
762
763enum ucode_type {
764 UCODE_NONE = 0,
765 UCODE_INIT,
766 UCODE_RT
767};
768
769/* Sensitivity calib data */
770struct iwl_sensitivity_data {
771 u32 auto_corr_ofdm;
772 u32 auto_corr_ofdm_mrc;
773 u32 auto_corr_ofdm_x1;
774 u32 auto_corr_ofdm_mrc_x1;
775 u32 auto_corr_cck;
776 u32 auto_corr_cck_mrc;
777
778 u32 last_bad_plcp_cnt_ofdm;
779 u32 last_fa_cnt_ofdm;
780 u32 last_bad_plcp_cnt_cck;
781 u32 last_fa_cnt_cck;
782
783 u32 nrg_curr_state;
784 u32 nrg_prev_state;
785 u32 nrg_value[10];
786 u8 nrg_silence_rssi[NRG_NUM_PREV_STAT_L];
787 u32 nrg_silence_ref;
788 u32 nrg_energy_idx;
789 u32 nrg_silence_idx;
790 u32 nrg_th_cck;
791 s32 nrg_auto_corr_silence_diff;
792 u32 num_in_cck_no_fa;
793 u32 nrg_th_ofdm;
794};
795
796/* Chain noise (differential Rx gain) calib data */
797struct iwl_chain_noise_data {
798 u8 state;
799 u16 beacon_count;
800 u32 chain_noise_a;
801 u32 chain_noise_b;
802 u32 chain_noise_c;
803 u32 chain_signal_a;
804 u32 chain_signal_b;
805 u32 chain_signal_c;
806 u8 disconn_array[NUM_RX_CHAINS];
807 u8 delta_gain_code[NUM_RX_CHAINS];
808 u8 radio_write;
809};
810
811#define EEPROM_SEM_TIMEOUT 10 /* milliseconds */
812#define EEPROM_SEM_RETRY_LIMIT 1000 /* number of attempts (not time) */
813
814
815#ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
816
817enum {
818 MEASUREMENT_READY = (1 << 0),
819 MEASUREMENT_ACTIVE = (1 << 1),
820};
821
822#endif
823
824#define IWL_MAX_NUM_QUEUES 20 /* FIXME: do dynamic allocation */
825
826struct iwl_priv {
827
828 /* ieee device used by generic ieee processing code */
829 struct ieee80211_hw *hw;
830 struct ieee80211_channel *ieee_channels;
831 struct ieee80211_rate *ieee_rates;
832 struct iwl_cfg *cfg;
833
834 /* temporary frame storage list */
835 struct list_head free_frames;
836 int frames_count;
837
838 enum ieee80211_band band;
839 int alloc_rxb_skb;
840 bool add_radiotap;
841
842 void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv,
843 struct iwl_rx_mem_buffer *rxb);
844
845 struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
846
847#ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
848 /* spectrum measurement report caching */
849 struct iwl4965_spectrum_notification measure_report;
850 u8 measurement_status;
851#endif
852 /* ucode beacon time */
853 u32 ucode_beacon_time;
854
855 /* we allocate array of iwl4965_channel_info for NIC's valid channels.
856 * Access via channel # using indirect index array */
857 struct iwl_channel_info *channel_info; /* channel info array */
858 u8 channel_count; /* # of channels */
859
860 /* each calibration channel group in the EEPROM has a derived
861 * clip setting for each rate. */
862 const struct iwl4965_clip_group clip_groups[5];
863
864 /* thermal calibration */
865 s32 temperature; /* degrees Kelvin */
866 s32 last_temperature;
867
868 /* init calibration results */
869 struct iwl_calib_results calib_results;
870
871 /* Scan related variables */
872 unsigned long last_scan_jiffies;
873 unsigned long next_scan_jiffies;
874 unsigned long scan_start;
875 unsigned long scan_pass_start;
876 unsigned long scan_start_tsf;
877 int scan_bands;
878 int one_direct_scan;
879 u8 direct_ssid_len;
880 u8 direct_ssid[IW_ESSID_MAX_SIZE];
881 struct iwl_scan_cmd *scan;
882 u32 scan_tx_ant[IEEE80211_NUM_BANDS];
883
884 /* spinlock */
885 spinlock_t lock; /* protect general shared data */
886 spinlock_t hcmd_lock; /* protect hcmd */
887 struct mutex mutex;
888
889 /* basic pci-network driver stuff */
890 struct pci_dev *pci_dev;
891
892 /* pci hardware address support */
893 void __iomem *hw_base;
894 u32 hw_rev;
895 u32 hw_wa_rev;
896 u8 rev_id;
897
898 /* uCode images, save to reload in case of failure */
899 struct fw_desc ucode_code; /* runtime inst */
900 struct fw_desc ucode_data; /* runtime data original */
901 struct fw_desc ucode_data_backup; /* runtime data save/restore */
902 struct fw_desc ucode_init; /* initialization inst */
903 struct fw_desc ucode_init_data; /* initialization data */
904 struct fw_desc ucode_boot; /* bootstrap inst */
905 enum ucode_type ucode_type;
906 u8 ucode_write_complete; /* the image write is complete */
907
908
909 struct iwl4965_rxon_time_cmd rxon_timing;
910
911 /* We declare this const so it can only be
912 * changed via explicit cast within the
913 * routines that actually update the physical
914 * hardware */
915 const struct iwl_rxon_cmd active_rxon;
916 struct iwl_rxon_cmd staging_rxon;
917
918 int error_recovering;
919 struct iwl_rxon_cmd recovery_rxon;
920
921 /* 1st responses from initialize and runtime uCode images.
922 * 4965's initialize alive response contains some calibration data. */
923 struct iwl_init_alive_resp card_alive_init;
924 struct iwl_alive_resp card_alive;
925#ifdef CONFIG_IWLWIFI_RFKILL
926 struct rfkill *rfkill;
927#endif
928
929#ifdef CONFIG_IWLWIFI_LEDS
930 struct iwl_led led[IWL_LED_TRG_MAX];
931 unsigned long last_blink_time;
932 u8 last_blink_rate;
933 u8 allow_blinking;
934 u64 led_tpt;
935#endif
936
937 u16 active_rate;
938 u16 active_rate_basic;
939
940 u8 assoc_station_added;
941 u8 use_ant_b_for_management_frame; /* Tx antenna selection */
942 u8 start_calib;
943 struct iwl_sensitivity_data sensitivity_data;
944 struct iwl_chain_noise_data chain_noise_data;
945 __le16 sensitivity_tbl[HD_TABLE_SIZE];
946
947 struct iwl_ht_info current_ht_config;
948 u8 last_phy_res[100];
949
950 /* Rate scaling data */
951 struct iwl4965_lq_mngr lq_mngr;
952
953 /* Rate scaling data */
954 s8 data_retry_limit;
955 u8 retry_rate;
956
957 wait_queue_head_t wait_command_queue;
958
959 int activity_timer_active;
960
961 /* Rx and Tx DMA processing queues */
962 struct iwl_rx_queue rxq;
963 struct iwl_tx_queue txq[IWL_MAX_NUM_QUEUES];
964 unsigned long txq_ctx_active_msk;
965 struct iwl_kw kw; /* keep warm address */
966 u32 scd_base_addr; /* scheduler sram base address */
967
968 unsigned long status;
969
970 int last_rx_rssi; /* From Rx packet statisitics */
971 int last_rx_noise; /* From beacon statistics */
972
973 /* counts mgmt, ctl, and data packets */
974 struct traffic_stats {
975 u32 cnt;
976 u64 bytes;
977 } tx_stats[3], rx_stats[3];
978
979 struct iwl_power_mgr power_data;
980
981 struct iwl_notif_statistics statistics;
982 unsigned long last_statistics_time;
983
984 /* context information */
985 u8 essid[IW_ESSID_MAX_SIZE];
986 u8 essid_len;
987 u16 rates_mask;
988
989 u32 power_mode;
990 u32 antenna;
991 u8 bssid[ETH_ALEN];
992 u16 rts_threshold;
993 u8 mac_addr[ETH_ALEN];
994
995 /*station table variables */
996 spinlock_t sta_lock;
997 int num_stations;
998 struct iwl_station_entry stations[IWL_STATION_COUNT];
999 struct iwl_wep_key wep_keys[WEP_KEYS_MAX];
1000 u8 default_wep_key;
1001 u8 key_mapping_key;
1002 unsigned long ucode_key_table;
1003
1004 /* Indication if ieee80211_ops->open has been called */
1005 u8 is_open;
1006
1007 u8 mac80211_registered;
1008
1009 /* Rx'd packet timing information */
1010 u32 last_beacon_time;
1011 u64 last_tsf;
1012
1013 /* eeprom */
1014 u8 *eeprom;
1015 struct iwl_eeprom_calib_info *calib_info;
1016
1017 enum ieee80211_if_types iw_mode;
1018
1019 struct sk_buff *ibss_beacon;
1020
1021 /* Last Rx'd beacon timestamp */
1022 u64 timestamp;
1023 u16 beacon_int;
1024 struct ieee80211_vif *vif;
1025
1026 struct iwl_hw_params hw_params;
1027 /* driver/uCode shared Tx Byte Counts and Rx status */
1028 void *shared_virt;
1029 int rb_closed_offset;
1030 /* Physical Pointer to Tx Byte Counts and Rx status */
1031 dma_addr_t shared_phys;
1032
1033 /* Current association information needed to configure the
1034 * hardware */
1035 u16 assoc_id;
1036 u16 assoc_capability;
1037 u8 ps_mode;
1038
1039 struct iwl_qos_info qos_data;
1040
1041 struct workqueue_struct *workqueue;
1042
1043 struct work_struct up;
1044 struct work_struct restart;
1045 struct work_struct calibrated_work;
1046 struct work_struct scan_completed;
1047 struct work_struct rx_replenish;
1048 struct work_struct rf_kill;
1049 struct work_struct abort_scan;
1050 struct work_struct update_link_led;
1051 struct work_struct auth_work;
1052 struct work_struct report_work;
1053 struct work_struct request_scan;
1054 struct work_struct beacon_update;
1055 struct work_struct set_monitor;
1056
1057 struct tasklet_struct irq_tasklet;
1058
1059 struct delayed_work init_alive_start;
1060 struct delayed_work alive_start;
1061 struct delayed_work scan_check;
1062 /* TX Power */
1063 s8 tx_power_user_lmt;
1064 s8 tx_power_channel_lmt;
1065
1066#ifdef CONFIG_PM
1067 u32 pm_state[16];
1068#endif
1069
1070#ifdef CONFIG_IWLWIFI_DEBUG
1071 /* debugging info */
1072 u32 debug_level;
1073 u32 framecnt_to_us;
1074 atomic_t restrict_refcnt;
1075#ifdef CONFIG_IWLWIFI_DEBUGFS
1076 /* debugfs */
1077 struct iwl_debugfs *dbgfs;
1078#endif /* CONFIG_IWLWIFI_DEBUGFS */
1079#endif /* CONFIG_IWLWIFI_DEBUG */
1080
1081 struct work_struct txpower_work;
1082 u32 disable_sens_cal;
1083 u32 disable_chain_noise_cal;
1084 u32 disable_tx_power_cal;
1085 struct work_struct run_time_calib_work;
1086 struct timer_list statistics_periodic;
1087}; /*iwl_priv */
1088
1089static inline void iwl_txq_ctx_activate(struct iwl_priv *priv, int txq_id)
1090{
1091 set_bit(txq_id, &priv->txq_ctx_active_msk);
1092}
1093
1094static inline void iwl_txq_ctx_deactivate(struct iwl_priv *priv, int txq_id)
1095{
1096 clear_bit(txq_id, &priv->txq_ctx_active_msk);
1097}
1098
1099#ifdef CONFIG_IWLWIFI_DEBUG
1100const char *iwl_get_tx_fail_reason(u32 status);
1101#else
1102static inline const char *iwl_get_tx_fail_reason(u32 status) { return ""; }
1103#endif
1104
1105
1106static inline struct ieee80211_hdr *iwl_tx_queue_get_hdr(struct iwl_priv *priv,
1107 int txq_id, int idx)
1108{
1109 if (priv->txq[txq_id].txb[idx].skb[0])
1110 return (struct ieee80211_hdr *)priv->txq[txq_id].
1111 txb[idx].skb[0]->data;
1112 return NULL;
1113}
1114
1115
1116static inline int iwl_is_associated(struct iwl_priv *priv)
1117{
1118 return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
1119}
1120
1121static inline int is_channel_valid(const struct iwl_channel_info *ch_info)
1122{
1123 if (ch_info == NULL)
1124 return 0;
1125 return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
1126}
1127
1128static inline int is_channel_radar(const struct iwl_channel_info *ch_info)
1129{
1130 return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
1131}
1132
1133static inline u8 is_channel_a_band(const struct iwl_channel_info *ch_info)
1134{
1135 return ch_info->band == IEEE80211_BAND_5GHZ;
1136}
1137
1138static inline u8 is_channel_bg_band(const struct iwl_channel_info *ch_info)
1139{
1140 return ch_info->band == IEEE80211_BAND_2GHZ;
1141}
1142
1143static inline int is_channel_passive(const struct iwl_channel_info *ch)
1144{
1145 return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
1146}
1147
1148static inline int is_channel_ibss(const struct iwl_channel_info *ch)
1149{
1150 return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
1151}
1152
1153#ifdef CONFIG_IWLWIFI_DEBUG
1154static inline void iwl_print_hex_dump(struct iwl_priv *priv, int level,
1155 void *p, u32 len)
1156{
1157 if (!(priv->debug_level & level))
1158 return;
1159
1160 print_hex_dump(KERN_DEBUG, "iwl data: ", DUMP_PREFIX_OFFSET, 16, 1,
1161 p, len, 1);
1162}
1163#else
1164static inline void iwl_print_hex_dump(struct iwl_priv *priv, int level,
1165 void *p, u32 len)
1166{
1167}
1168#endif
1169
1170extern const struct iwl_channel_info *iwl_get_channel_info(
1171 const struct iwl_priv *priv, enum ieee80211_band band, u16 channel);
1172
1173/* Requires full declaration of iwl_priv before including */
1174
1175#endif /* __iwl_dev_h__ */