projects / deliverable / linux.git / blame_incremental
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (non-incremental) | history | HEAD
iwlwifi: remove 4965 prefix from iwl4965_ucode
[deliverable/linux.git] / drivers / net / wireless / iwlwifi / iwl-dev.h
... / ...
CommitLineData
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;
54
55/* Change firmware file name, using "-" and incrementing number,
56 * *only* when uCode interface or architecture changes so that it
57 * is not compatible with earlier drivers.
58 * This number will also appear in << 8 position of 1st dword of uCode file */
59#define IWL4965_UCODE_API "-1"
60
61/* CT-KILL constants */
62#define CT_KILL_THRESHOLD 110 /* in Celsius */
63
64/* Default noise level to report when noise measurement is not available.
65 * This may be because we're:
66 * 1) Not associated (4965, no beacon statistics being sent to driver)
67 * 2) Scanning (noise measurement does not apply to associated channel)
68 * 3) Receiving CCK (3945 delivers noise info only for OFDM frames)
69 * Use default noise value of -127 ... this is below the range of measurable
70 * Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
71 * Also, -127 works better than 0 when averaging frames with/without
72 * noise info (e.g. averaging might be done in app); measured dBm values are
73 * always negative ... using a negative value as the default keeps all
74 * averages within an s8's (used in some apps) range of negative values. */
75#define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
76
77/*
78 * RTS threshold here is total size [2347] minus 4 FCS bytes
79 * Per spec:
80 * a value of 0 means RTS on all data/management packets
81 * a value > max MSDU size means no RTS
82 * else RTS for data/management frames where MPDU is larger
83 * than RTS value.
84 */
85#define DEFAULT_RTS_THRESHOLD 2347U
86#define MIN_RTS_THRESHOLD 0U
87#define MAX_RTS_THRESHOLD 2347U
88#define MAX_MSDU_SIZE 2304U
89#define MAX_MPDU_SIZE 2346U
90#define DEFAULT_BEACON_INTERVAL 100U
91#define DEFAULT_SHORT_RETRY_LIMIT 7U
92#define DEFAULT_LONG_RETRY_LIMIT 4U
93
94struct iwl_rx_mem_buffer {
95 dma_addr_t dma_addr;
96 struct sk_buff *skb;
97 struct list_head list;
98};
99
100/*
101 * Generic queue structure
102 *
103 * Contains common data for Rx and Tx queues
104 */
105struct iwl_queue {
106 int n_bd; /* number of BDs in this queue */
107 int write_ptr; /* 1-st empty entry (index) host_w*/
108 int read_ptr; /* last used entry (index) host_r*/
109 dma_addr_t dma_addr; /* physical addr for BD's */
110 int n_window; /* safe queue window */
111 u32 id;
112 int low_mark; /* low watermark, resume queue if free
113 * space more than this */
114 int high_mark; /* high watermark, stop queue if free
115 * space less than this */
116} __attribute__ ((packed));
117
118#define MAX_NUM_OF_TBS (20)
119
120/* One for each TFD */
121struct iwl_tx_info {
122 struct sk_buff *skb[MAX_NUM_OF_TBS];
123};
124
125/**
126 * struct iwl_tx_queue - Tx Queue for DMA
127 * @q: generic Rx/Tx queue descriptor
128 * @bd: base of circular buffer of TFDs
129 * @cmd: array of command/Tx buffers
130 * @dma_addr_cmd: physical address of cmd/tx buffer array
131 * @txb: array of per-TFD driver data
132 * @need_update: indicates need to update read/write index
133 * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
134 *
135 * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
136 * descriptors) and required locking structures.
137 */
138struct iwl_tx_queue {
139 struct iwl_queue q;
140 struct iwl_tfd_frame *bd;
141 struct iwl_cmd *cmd;
142 dma_addr_t dma_addr_cmd;
143 struct iwl_tx_info *txb;
144 int need_update;
145 int sched_retry;
146 int active;
147};
148
149#define IWL_NUM_SCAN_RATES (2)
150
151struct iwl4965_channel_tgd_info {
152 u8 type;
153 s8 max_power;
154};
155
156struct iwl4965_channel_tgh_info {
157 s64 last_radar_time;
158};
159
160/*
161 * One for each channel, holds all channel setup data
162 * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
163 * with one another!
164 */
165struct iwl_channel_info {
166 struct iwl4965_channel_tgd_info tgd;
167 struct iwl4965_channel_tgh_info tgh;
168 struct iwl_eeprom_channel eeprom; /* EEPROM regulatory limit */
169 struct iwl_eeprom_channel fat_eeprom; /* EEPROM regulatory limit for
170 * FAT channel */
171
172 u8 channel; /* channel number */
173 u8 flags; /* flags copied from EEPROM */
174 s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
175 s8 curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) limit */
176 s8 min_power; /* always 0 */
177 s8 scan_power; /* (dBm) regul. eeprom, direct scans, any rate */
178
179 u8 group_index; /* 0-4, maps channel to group1/2/3/4/5 */
180 u8 band_index; /* 0-4, maps channel to band1/2/3/4/5 */
181 enum ieee80211_band band;
182
183 /* FAT channel info */
184 s8 fat_max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
185 s8 fat_curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) */
186 s8 fat_min_power; /* always 0 */
187 s8 fat_scan_power; /* (dBm) eeprom, direct scans, any rate */
188 u8 fat_flags; /* flags copied from EEPROM */
189 u8 fat_extension_channel; /* HT_IE_EXT_CHANNEL_* */
190};
191
192struct iwl4965_clip_group {
193 /* maximum power level to prevent clipping for each rate, derived by
194 * us from this band's saturation power in EEPROM */
195 const s8 clip_powers[IWL_MAX_RATES];
196};
197
198#include "iwl-4965-rs.h"
199
200#define IWL_TX_FIFO_AC0 0
201#define IWL_TX_FIFO_AC1 1
202#define IWL_TX_FIFO_AC2 2
203#define IWL_TX_FIFO_AC3 3
204#define IWL_TX_FIFO_HCCA_1 5
205#define IWL_TX_FIFO_HCCA_2 6
206#define IWL_TX_FIFO_NONE 7
207
208/* Minimum number of queues. MAX_NUM is defined in hw specific files */
209#define IWL_MIN_NUM_QUEUES 4
210
211/* Power management (not Tx power) structures */
212
213enum iwl_pwr_src {
214 IWL_PWR_SRC_VMAIN,
215 IWL_PWR_SRC_VAUX,
216};
217
218#define IEEE80211_DATA_LEN 2304
219#define IEEE80211_4ADDR_LEN 30
220#define IEEE80211_HLEN (IEEE80211_4ADDR_LEN)
221#define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
222
223struct iwl_frame {
224 union {
225 struct ieee80211_hdr frame;
226 struct iwl4965_tx_beacon_cmd beacon;
227 u8 raw[IEEE80211_FRAME_LEN];
228 u8 cmd[360];
229 } u;
230 struct list_head list;
231};
232
233#define SEQ_TO_QUEUE(x) ((x >> 8) & 0xbf)
234#define QUEUE_TO_SEQ(x) ((x & 0xbf) << 8)
235#define SEQ_TO_INDEX(x) ((u8)(x & 0xff))
236#define INDEX_TO_SEQ(x) ((u8)(x & 0xff))
237#define SEQ_HUGE_FRAME (0x4000)
238#define SEQ_RX_FRAME __constant_cpu_to_le16(0x8000)
239#define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
240#define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
241#define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
242
243enum {
244 /* CMD_SIZE_NORMAL = 0, */
245 CMD_SIZE_HUGE = (1 << 0),
246 /* CMD_SYNC = 0, */
247 CMD_ASYNC = (1 << 1),
248 /* CMD_NO_SKB = 0, */
249 CMD_WANT_SKB = (1 << 2),
250};
251
252struct iwl_cmd;
253struct iwl_priv;
254
255struct iwl_cmd_meta {
256 struct iwl_cmd_meta *source;
257 union {
258 struct sk_buff *skb;
259 int (*callback)(struct iwl_priv *priv,
260 struct iwl_cmd *cmd, struct sk_buff *skb);
261 } __attribute__ ((packed)) u;
262
263 /* The CMD_SIZE_HUGE flag bit indicates that the command
264 * structure is stored at the end of the shared queue memory. */
265 u32 flags;
266
267} __attribute__ ((packed));
268
269#define IWL_CMD_MAX_PAYLOAD 320
270
271/**
272 * struct iwl_cmd
273 *
274 * For allocation of the command and tx queues, this establishes the overall
275 * size of the largest command we send to uCode, except for a scan command
276 * (which is relatively huge; space is allocated separately).
277 */
278struct iwl_cmd {
279 struct iwl_cmd_meta meta; /* driver data */
280 struct iwl_cmd_header hdr; /* uCode API */
281 union {
282 struct iwl_addsta_cmd addsta;
283 struct iwl4965_led_cmd led;
284 u32 flags;
285 u8 val8;
286 u16 val16;
287 u32 val32;
288 struct iwl4965_bt_cmd bt;
289 struct iwl4965_rxon_time_cmd rxon_time;
290 struct iwl4965_powertable_cmd powertable;
291 struct iwl4965_qosparam_cmd qosparam;
292 struct iwl_tx_cmd tx;
293 struct iwl4965_tx_beacon_cmd tx_beacon;
294 struct iwl4965_rxon_assoc_cmd rxon_assoc;
295 struct iwl_rem_sta_cmd rm_sta;
296 u8 *indirect;
297 u8 payload[IWL_CMD_MAX_PAYLOAD];
298 } __attribute__ ((packed)) cmd;
299} __attribute__ ((packed));
300
301struct iwl_host_cmd {
302 u8 id;
303 u16 len;
304 struct iwl_cmd_meta meta;
305 const void *data;
306};
307
308#define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_cmd) - \
309 sizeof(struct iwl_cmd_meta))
310
311/*
312 * RX related structures and functions
313 */
314#define RX_FREE_BUFFERS 64
315#define RX_LOW_WATERMARK 8
316
317#define SUP_RATE_11A_MAX_NUM_CHANNELS 8
318#define SUP_RATE_11B_MAX_NUM_CHANNELS 4
319#define SUP_RATE_11G_MAX_NUM_CHANNELS 12
320
321/**
322 * struct iwl_rx_queue - Rx queue
323 * @processed: Internal index to last handled Rx packet
324 * @read: Shared index to newest available Rx buffer
325 * @write: Shared index to oldest written Rx packet
326 * @free_count: Number of pre-allocated buffers in rx_free
327 * @rx_free: list of free SKBs for use
328 * @rx_used: List of Rx buffers with no SKB
329 * @need_update: flag to indicate we need to update read/write index
330 *
331 * NOTE: rx_free and rx_used are used as a FIFO for iwl_rx_mem_buffers
332 */
333struct iwl_rx_queue {
334 __le32 *bd;
335 dma_addr_t dma_addr;
336 struct iwl_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
337 struct iwl_rx_mem_buffer *queue[RX_QUEUE_SIZE];
338 u32 processed;
339 u32 read;
340 u32 write;
341 u32 free_count;
342 struct list_head rx_free;
343 struct list_head rx_used;
344 int need_update;
345 spinlock_t lock;
346};
347
348#define IWL_SUPPORTED_RATES_IE_LEN 8
349
350#define SCAN_INTERVAL 100
351
352#define MAX_A_CHANNELS 252
353#define MIN_A_CHANNELS 7
354
355#define MAX_B_CHANNELS 14
356#define MIN_B_CHANNELS 1
357
358#define MAX_TID_COUNT 9
359
360#define IWL_INVALID_RATE 0xFF
361#define IWL_INVALID_VALUE -1
362
363/**
364 * struct iwl_ht_agg -- aggregation status while waiting for block-ack
365 * @txq_id: Tx queue used for Tx attempt
366 * @frame_count: # frames attempted by Tx command
367 * @wait_for_ba: Expect block-ack before next Tx reply
368 * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window
369 * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window
370 * @bitmap1: High order, one bit for each frame pending ACK in Tx window
371 * @rate_n_flags: Rate at which Tx was attempted
372 *
373 * If REPLY_TX indicates that aggregation was attempted, driver must wait
374 * for block ack (REPLY_COMPRESSED_BA). This struct stores tx reply info
375 * until block ack arrives.
376 */
377struct iwl_ht_agg {
378 u16 txq_id;
379 u16 frame_count;
380 u16 wait_for_ba;
381 u16 start_idx;
382 u64 bitmap;
383 u32 rate_n_flags;
384#define IWL_AGG_OFF 0
385#define IWL_AGG_ON 1
386#define IWL_EMPTYING_HW_QUEUE_ADDBA 2
387#define IWL_EMPTYING_HW_QUEUE_DELBA 3
388 u8 state;
389};
390
391
392struct iwl_tid_data {
393 u16 seq_number;
394 u16 tfds_in_queue;
395 struct iwl_ht_agg agg;
396};
397
398struct iwl_hw_key {
399 enum ieee80211_key_alg alg;
400 int keylen;
401 u8 keyidx;
402 u8 key[32];
403};
404
405union iwl4965_ht_rate_supp {
406 u16 rates;
407 struct {
408 u8 siso_rate;
409 u8 mimo_rate;
410 };
411};
412
413#define CFG_HT_RX_AMPDU_FACTOR_DEF (0x3)
414#define CFG_HT_MPDU_DENSITY_2USEC (0x5)
415#define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_2USEC
416
417struct iwl_ht_info {
418 /* self configuration data */
419 u8 is_ht;
420 u8 supported_chan_width;
421 u16 tx_mimo_ps_mode;
422 u8 is_green_field;
423 u8 sgf; /* HT_SHORT_GI_* short guard interval */
424 u8 max_amsdu_size;
425 u8 ampdu_factor;
426 u8 mpdu_density;
427 u8 supp_mcs_set[16];
428 /* BSS related data */
429 u8 control_channel;
430 u8 extension_chan_offset;
431 u8 tx_chan_width;
432 u8 ht_protection;
433 u8 non_GF_STA_present;
434};
435
436union iwl4965_qos_capabity {
437 struct {
438 u8 edca_count:4; /* bit 0-3 */
439 u8 q_ack:1; /* bit 4 */
440 u8 queue_request:1; /* bit 5 */
441 u8 txop_request:1; /* bit 6 */
442 u8 reserved:1; /* bit 7 */
443 } q_AP;
444 struct {
445 u8 acvo_APSD:1; /* bit 0 */
446 u8 acvi_APSD:1; /* bit 1 */
447 u8 ac_bk_APSD:1; /* bit 2 */
448 u8 ac_be_APSD:1; /* bit 3 */
449 u8 q_ack:1; /* bit 4 */
450 u8 max_len:2; /* bit 5-6 */
451 u8 more_data_ack:1; /* bit 7 */
452 } q_STA;
453 u8 val;
454};
455
456/* QoS structures */
457struct iwl4965_qos_info {
458 int qos_enable;
459 int qos_active;
460 union iwl4965_qos_capabity qos_cap;
461 struct iwl4965_qosparam_cmd def_qos_parm;
462};
463
464#define STA_PS_STATUS_WAKE 0
465#define STA_PS_STATUS_SLEEP 1
466
467struct iwl_station_entry {
468 struct iwl_addsta_cmd sta;
469 struct iwl_tid_data tid[MAX_TID_COUNT];
470 u8 used;
471 u8 ps_status;
472 struct iwl_hw_key keyinfo;
473};
474
475/* one for each uCode image (inst/data, boot/init/runtime) */
476struct fw_desc {
477 void *v_addr; /* access by driver */
478 dma_addr_t p_addr; /* access by card's busmaster DMA */
479 u32 len; /* bytes */
480};
481
482/* uCode file layout */
483struct iwl_ucode {
484 __le32 ver; /* major/minor/subminor */
485 __le32 inst_size; /* bytes of runtime instructions */
486 __le32 data_size; /* bytes of runtime data */
487 __le32 init_size; /* bytes of initialization instructions */
488 __le32 init_data_size; /* bytes of initialization data */
489 __le32 boot_size; /* bytes of bootstrap instructions */
490 u8 data[0]; /* data in same order as "size" elements */
491};
492
493#define IWL_IBSS_MAC_HASH_SIZE 32
494
495struct iwl4965_ibss_seq {
496 u8 mac[ETH_ALEN];
497 u16 seq_num;
498 u16 frag_num;
499 unsigned long packet_time;
500 struct list_head list;
501};
502
503struct iwl_sensitivity_ranges {
504 u16 min_nrg_cck;
505 u16 max_nrg_cck;
506
507 u16 nrg_th_cck;
508 u16 nrg_th_ofdm;
509
510 u16 auto_corr_min_ofdm;
511 u16 auto_corr_min_ofdm_mrc;
512 u16 auto_corr_min_ofdm_x1;
513 u16 auto_corr_min_ofdm_mrc_x1;
514
515 u16 auto_corr_max_ofdm;
516 u16 auto_corr_max_ofdm_mrc;
517 u16 auto_corr_max_ofdm_x1;
518 u16 auto_corr_max_ofdm_mrc_x1;
519
520 u16 auto_corr_max_cck;
521 u16 auto_corr_max_cck_mrc;
522 u16 auto_corr_min_cck;
523 u16 auto_corr_min_cck_mrc;
524};
525
526
527#define IWL_FAT_CHANNEL_52 BIT(IEEE80211_BAND_5GHZ)
528
529/**
530 * struct iwl_hw_params
531 * @max_txq_num: Max # Tx queues supported
532 * @tx/rx_chains_num: Number of TX/RX chains
533 * @valid_tx/rx_ant: usable antennas
534 * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
535 * @max_rxq_log: Log-base-2 of max_rxq_size
536 * @rx_buf_size: Rx buffer size
537 * @max_stations:
538 * @bcast_sta_id:
539 * @fat_channel: is 40MHz width possible in band 2.4
540 * BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ)
541 * @sw_crypto: 0 for hw, 1 for sw
542 * @max_xxx_size: for ucode uses
543 * @ct_kill_threshold: temperature threshold
544 * @struct iwl_sensitivity_ranges: range of sensitivity values
545 * @first_ampdu_q: first HW queue available for ampdu
546 */
547struct iwl_hw_params {
548 u16 max_txq_num;
549 u8 tx_chains_num;
550 u8 rx_chains_num;
551 u8 valid_tx_ant;
552 u8 valid_rx_ant;
553 u16 max_rxq_size;
554 u16 max_rxq_log;
555 u32 rx_buf_size;
556 u32 max_pkt_size;
557 u8 max_stations;
558 u8 bcast_sta_id;
559 u8 fat_channel;
560 u8 sw_crypto;
561 u32 max_inst_size;
562 u32 max_data_size;
563 u32 max_bsm_size;
564 u32 ct_kill_threshold; /* value in hw-dependent units */
565 const struct iwl_sensitivity_ranges *sens;
566 u8 first_ampdu_q;
567};
568
569#define HT_SHORT_GI_20MHZ (1 << 0)
570#define HT_SHORT_GI_40MHZ (1 << 1)
571
572
573#define IWL_RX_HDR(x) ((struct iwl4965_rx_frame_hdr *)(\
574 x->u.rx_frame.stats.payload + \
575 x->u.rx_frame.stats.phy_count))
576#define IWL_RX_END(x) ((struct iwl4965_rx_frame_end *)(\
577 IWL_RX_HDR(x)->payload + \
578 le16_to_cpu(IWL_RX_HDR(x)->len)))
579#define IWL_RX_STATS(x) (&x->u.rx_frame.stats)
580#define IWL_RX_DATA(x) (IWL_RX_HDR(x)->payload)
581
582
583/******************************************************************************
584 *
585 * Functions implemented in iwl-base.c which are forward declared here
586 * for use by iwl-*.c
587 *
588 *****************************************************************************/
589struct iwl_addsta_cmd;
590extern int iwl_send_add_sta(struct iwl_priv *priv,
591 struct iwl_addsta_cmd *sta, u8 flags);
592u8 iwl_add_station_flags(struct iwl_priv *priv, const u8 *addr, int is_ap,
593 u8 flags, struct ieee80211_ht_info *ht_info);
594extern int iwl4965_is_network_packet(struct iwl_priv *priv,
595 struct ieee80211_hdr *header);
596extern int iwl4965_is_duplicate_packet(struct iwl_priv *priv,
597 struct ieee80211_hdr *header);
598extern int iwl4965_calc_sig_qual(int rssi_dbm, int noise_dbm);
599extern unsigned int iwl4965_fill_beacon_frame(struct iwl_priv *priv,
600 struct ieee80211_hdr *hdr,
601 const u8 *dest, int left);
602extern void iwl4965_update_chain_flags(struct iwl_priv *priv);
603int iwl4965_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src);
604
605extern const u8 iwl_bcast_addr[ETH_ALEN];
606
607/******************************************************************************
608 *
609 * Functions implemented in iwl-[34]*.c which are forward declared here
610 * for use by iwl-base.c
611 *
612 * NOTE: The implementation of these functions are hardware specific
613 * which is why they are in the hardware specific files (vs. iwl-base.c)
614 *
615 * Naming convention --
616 * iwl4965_ <-- Its part of iwlwifi (should be changed to iwl4965_)
617 * iwl4965_hw_ <-- Hardware specific (implemented in iwl-XXXX.c by all HW)
618 * iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
619 * iwl4965_bg_ <-- Called from work queue context
620 * iwl4965_mac_ <-- mac80211 callback
621 *
622 ****************************************************************************/
623extern int iwl_rxq_stop(struct iwl_priv *priv);
624extern void iwl_txq_ctx_stop(struct iwl_priv *priv);
625extern unsigned int iwl4965_hw_get_beacon_cmd(struct iwl_priv *priv,
626 struct iwl_frame *frame, u8 rate);
627extern void iwl4965_hw_rx_statistics(struct iwl_priv *priv,
628 struct iwl_rx_mem_buffer *rxb);
629extern void iwl4965_disable_events(struct iwl_priv *priv);
630extern void iwl4965_rx_reply_rx(struct iwl_priv *priv,
631 struct iwl_rx_mem_buffer *rxb);
632
633extern int iwl4965_hw_channel_switch(struct iwl_priv *priv, u16 channel);
634extern int iwl_queue_space(const struct iwl_queue *q);
635static inline int iwl_queue_used(const struct iwl_queue *q, int i)
636{
637 return q->write_ptr > q->read_ptr ?
638 (i >= q->read_ptr && i < q->write_ptr) :
639 !(i < q->read_ptr && i >= q->write_ptr);
640}
641
642
643static inline u8 get_cmd_index(struct iwl_queue *q, u32 index, int is_huge)
644{
645 /* This is for scan command, the big buffer at end of command array */
646 if (is_huge)
647 return q->n_window; /* must be power of 2 */
648
649 /* Otherwise, use normal size buffers */
650 return index & (q->n_window - 1);
651}
652
653
654struct iwl_priv;
655
656extern int iwl4965_radio_kill_sw(struct iwl_priv *priv, int disable_radio);
657/*
658 * Forward declare iwl-4965.c functions for iwl-base.c
659 */
660extern void iwl4965_rf_kill_ct_config(struct iwl_priv *priv);
661
662int iwl4965_mac_ampdu_action(struct ieee80211_hw *hw,
663 enum ieee80211_ampdu_mlme_action action,
664 const u8 *addr, u16 tid, u16 *ssn);
665int iwl4965_check_empty_hw_queue(struct iwl_priv *priv, int sta_id,
666 u8 tid, int txq_id);
667
668/* Structures, enum, and defines specific to the 4965 */
669
670#define IWL_KW_SIZE 0x1000 /*4k */
671
672struct iwl_kw {
673 dma_addr_t dma_addr;
674 void *v_addr;
675 size_t size;
676};
677
678#define IWL_CHANNEL_WIDTH_20MHZ 0
679#define IWL_CHANNEL_WIDTH_40MHZ 1
680
681#define IWL_MIMO_PS_STATIC 0
682#define IWL_MIMO_PS_NONE 3
683#define IWL_MIMO_PS_DYNAMIC 1
684#define IWL_MIMO_PS_INVALID 2
685
686#define IWL_OPERATION_MODE_AUTO 0
687#define IWL_OPERATION_MODE_HT_ONLY 1
688#define IWL_OPERATION_MODE_MIXED 2
689#define IWL_OPERATION_MODE_20MHZ 3
690
691#define IWL_TX_CRC_SIZE 4
692#define IWL_TX_DELIMITER_SIZE 4
693
694#define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
695
696struct iwl4965_lq_mngr {
697 spinlock_t lock;
698 s32 max_window_size;
699 s32 *expected_tpt;
700 u8 *next_higher_rate;
701 u8 *next_lower_rate;
702 unsigned long stamp;
703 unsigned long stamp_last;
704 u32 flush_time;
705 u32 tx_packets;
706 u8 lq_ready;
707};
708
709/* Sensitivity and chain noise calibration */
710#define INTERFERENCE_DATA_AVAILABLE __constant_cpu_to_le32(1)
711#define INITIALIZATION_VALUE 0xFFFF
712#define CAL_NUM_OF_BEACONS 20
713#define MAXIMUM_ALLOWED_PATHLOSS 15
714
715#define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
716
717#define MAX_FA_OFDM 50
718#define MIN_FA_OFDM 5
719#define MAX_FA_CCK 50
720#define MIN_FA_CCK 5
721
722#define AUTO_CORR_STEP_OFDM 1
723
724#define AUTO_CORR_STEP_CCK 3
725#define AUTO_CORR_MAX_TH_CCK 160
726
727#define NRG_DIFF 2
728#define NRG_STEP_CCK 2
729#define NRG_MARGIN 8
730#define MAX_NUMBER_CCK_NO_FA 100
731
732#define AUTO_CORR_CCK_MIN_VAL_DEF (125)
733
734#define CHAIN_A 0
735#define CHAIN_B 1
736#define CHAIN_C 2
737#define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
738#define ALL_BAND_FILTER 0xFF00
739#define IN_BAND_FILTER 0xFF
740#define MIN_AVERAGE_NOISE_MAX_VALUE 0xFFFFFFFF
741
742#define NRG_NUM_PREV_STAT_L 20
743#define NUM_RX_CHAINS 3
744
745enum iwl4965_false_alarm_state {
746 IWL_FA_TOO_MANY = 0,
747 IWL_FA_TOO_FEW = 1,
748 IWL_FA_GOOD_RANGE = 2,
749};
750
751enum iwl4965_chain_noise_state {
752 IWL_CHAIN_NOISE_ALIVE = 0, /* must be 0 */
753 IWL_CHAIN_NOISE_ACCUMULATE = 1,
754 IWL_CHAIN_NOISE_CALIBRATED = 2,
755};
756
757enum iwl4965_calib_enabled_state {
758 IWL_CALIB_DISABLED = 0, /* must be 0 */
759 IWL_CALIB_ENABLED = 1,
760};
761
762struct statistics_general_data {
763 u32 beacon_silence_rssi_a;
764 u32 beacon_silence_rssi_b;
765 u32 beacon_silence_rssi_c;
766 u32 beacon_energy_a;
767 u32 beacon_energy_b;
768 u32 beacon_energy_c;
769};
770
771struct iwl_calib_results {
772 void *tx_iq_res;
773 void *tx_iq_perd_res;
774 void *lo_res;
775 u32 tx_iq_res_len;
776 u32 tx_iq_perd_res_len;
777 u32 lo_res_len;
778};
779
780enum ucode_type {
781 UCODE_NONE = 0,
782 UCODE_INIT,
783 UCODE_RT
784};
785
786/* Sensitivity calib data */
787struct iwl_sensitivity_data {
788 u32 auto_corr_ofdm;
789 u32 auto_corr_ofdm_mrc;
790 u32 auto_corr_ofdm_x1;
791 u32 auto_corr_ofdm_mrc_x1;
792 u32 auto_corr_cck;
793 u32 auto_corr_cck_mrc;
794
795 u32 last_bad_plcp_cnt_ofdm;
796 u32 last_fa_cnt_ofdm;
797 u32 last_bad_plcp_cnt_cck;
798 u32 last_fa_cnt_cck;
799
800 u32 nrg_curr_state;
801 u32 nrg_prev_state;
802 u32 nrg_value[10];
803 u8 nrg_silence_rssi[NRG_NUM_PREV_STAT_L];
804 u32 nrg_silence_ref;
805 u32 nrg_energy_idx;
806 u32 nrg_silence_idx;
807 u32 nrg_th_cck;
808 s32 nrg_auto_corr_silence_diff;
809 u32 num_in_cck_no_fa;
810 u32 nrg_th_ofdm;
811};
812
813/* Chain noise (differential Rx gain) calib data */
814struct iwl_chain_noise_data {
815 u8 state;
816 u16 beacon_count;
817 u32 chain_noise_a;
818 u32 chain_noise_b;
819 u32 chain_noise_c;
820 u32 chain_signal_a;
821 u32 chain_signal_b;
822 u32 chain_signal_c;
823 u8 disconn_array[NUM_RX_CHAINS];
824 u8 delta_gain_code[NUM_RX_CHAINS];
825 u8 radio_write;
826};
827
828#define EEPROM_SEM_TIMEOUT 10 /* milliseconds */
829#define EEPROM_SEM_RETRY_LIMIT 1000 /* number of attempts (not time) */
830
831
832#ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
833
834enum {
835 MEASUREMENT_READY = (1 << 0),
836 MEASUREMENT_ACTIVE = (1 << 1),
837};
838
839#endif
840
841#define IWL_MAX_NUM_QUEUES 20 /* FIXME: do dynamic allocation */
842
843struct iwl_priv {
844
845 /* ieee device used by generic ieee processing code */
846 struct ieee80211_hw *hw;
847 struct ieee80211_channel *ieee_channels;
848 struct ieee80211_rate *ieee_rates;
849 struct iwl_cfg *cfg;
850
851 /* temporary frame storage list */
852 struct list_head free_frames;
853 int frames_count;
854
855 enum ieee80211_band band;
856 int alloc_rxb_skb;
857 bool add_radiotap;
858
859 void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv,
860 struct iwl_rx_mem_buffer *rxb);
861
862 struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
863
864#ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
865 /* spectrum measurement report caching */
866 struct iwl4965_spectrum_notification measure_report;
867 u8 measurement_status;
868#endif
869 /* ucode beacon time */
870 u32 ucode_beacon_time;
871
872 /* we allocate array of iwl4965_channel_info for NIC's valid channels.
873 * Access via channel # using indirect index array */
874 struct iwl_channel_info *channel_info; /* channel info array */
875 u8 channel_count; /* # of channels */
876
877 /* each calibration channel group in the EEPROM has a derived
878 * clip setting for each rate. */
879 const struct iwl4965_clip_group clip_groups[5];
880
881 /* thermal calibration */
882 s32 temperature; /* degrees Kelvin */
883 s32 last_temperature;
884
885 /* init calibration results */
886 struct iwl_calib_results calib_results;
887
888 /* Scan related variables */
889 unsigned long last_scan_jiffies;
890 unsigned long next_scan_jiffies;
891 unsigned long scan_start;
892 unsigned long scan_pass_start;
893 unsigned long scan_start_tsf;
894 int scan_bands;
895 int one_direct_scan;
896 u8 direct_ssid_len;
897 u8 direct_ssid[IW_ESSID_MAX_SIZE];
898 struct iwl_scan_cmd *scan;
899 u32 scan_tx_ant[IEEE80211_NUM_BANDS];
900
901 /* spinlock */
902 spinlock_t lock; /* protect general shared data */
903 spinlock_t hcmd_lock; /* protect hcmd */
904 struct mutex mutex;
905
906 /* basic pci-network driver stuff */
907 struct pci_dev *pci_dev;
908
909 /* pci hardware address support */
910 void __iomem *hw_base;
911 u32 hw_rev;
912 u32 hw_wa_rev;
913 u8 rev_id;
914
915 /* uCode images, save to reload in case of failure */
916 struct fw_desc ucode_code; /* runtime inst */
917 struct fw_desc ucode_data; /* runtime data original */
918 struct fw_desc ucode_data_backup; /* runtime data save/restore */
919 struct fw_desc ucode_init; /* initialization inst */
920 struct fw_desc ucode_init_data; /* initialization data */
921 struct fw_desc ucode_boot; /* bootstrap inst */
922 enum ucode_type ucode_type;
923 u8 ucode_write_complete; /* the image write is complete */
924
925
926 struct iwl4965_rxon_time_cmd rxon_timing;
927
928 /* We declare this const so it can only be
929 * changed via explicit cast within the
930 * routines that actually update the physical
931 * hardware */
932 const struct iwl_rxon_cmd active_rxon;
933 struct iwl_rxon_cmd staging_rxon;
934
935 int error_recovering;
936 struct iwl_rxon_cmd recovery_rxon;
937
938 /* 1st responses from initialize and runtime uCode images.
939 * 4965's initialize alive response contains some calibration data. */
940 struct iwl_init_alive_resp card_alive_init;
941 struct iwl_alive_resp card_alive;
942#ifdef CONFIG_IWLWIFI_RFKILL
943 struct iwl_rfkill_mngr rfkill_mngr;
944#endif
945
946#ifdef CONFIG_IWLWIFI_LEDS
947 struct iwl4965_led led[IWL_LED_TRG_MAX];
948 unsigned long last_blink_time;
949 u8 last_blink_rate;
950 u8 allow_blinking;
951 u64 led_tpt;
952#endif
953
954 u16 active_rate;
955 u16 active_rate_basic;
956
957 u8 assoc_station_added;
958 u8 use_ant_b_for_management_frame; /* Tx antenna selection */
959 u8 start_calib;
960 struct iwl_sensitivity_data sensitivity_data;
961 struct iwl_chain_noise_data chain_noise_data;
962 __le16 sensitivity_tbl[HD_TABLE_SIZE];
963
964 struct iwl_ht_info current_ht_config;
965 u8 last_phy_res[100];
966
967 /* Rate scaling data */
968 struct iwl4965_lq_mngr lq_mngr;
969
970 /* Rate scaling data */
971 s8 data_retry_limit;
972 u8 retry_rate;
973
974 wait_queue_head_t wait_command_queue;
975
976 int activity_timer_active;
977
978 /* Rx and Tx DMA processing queues */
979 struct iwl_rx_queue rxq;
980 struct iwl_tx_queue txq[IWL_MAX_NUM_QUEUES];
981 unsigned long txq_ctx_active_msk;
982 struct iwl_kw kw; /* keep warm address */
983 u32 scd_base_addr; /* scheduler sram base address */
984
985 unsigned long status;
986
987 int last_rx_rssi; /* From Rx packet statisitics */
988 int last_rx_noise; /* From beacon statistics */
989
990 /* counts mgmt, ctl, and data packets */
991 struct traffic_stats {
992 u32 cnt;
993 u64 bytes;
994 } tx_stats[3], rx_stats[3];
995
996 struct iwl_power_mgr power_data;
997
998 struct iwl4965_notif_statistics statistics;
999 unsigned long last_statistics_time;
1000
1001 /* context information */
1002 u8 essid[IW_ESSID_MAX_SIZE];
1003 u8 essid_len;
1004 u16 rates_mask;
1005
1006 u32 power_mode;
1007 u32 antenna;
1008 u8 bssid[ETH_ALEN];
1009 u16 rts_threshold;
1010 u8 mac_addr[ETH_ALEN];
1011
1012 /*station table variables */
1013 spinlock_t sta_lock;
1014 int num_stations;
1015 struct iwl_station_entry stations[IWL_STATION_COUNT];
1016 struct iwl_wep_key wep_keys[WEP_KEYS_MAX];
1017 u8 default_wep_key;
1018 u8 key_mapping_key;
1019 unsigned long ucode_key_table;
1020
1021 /* Indication if ieee80211_ops->open has been called */
1022 u8 is_open;
1023
1024 u8 mac80211_registered;
1025
1026 /* Rx'd packet timing information */
1027 u32 last_beacon_time;
1028 u64 last_tsf;
1029
1030 /* Duplicate packet detection */
1031 u16 last_seq_num;
1032 u16 last_frag_num;
1033 unsigned long last_packet_time;
1034
1035 /* Hash table for finding stations in IBSS network */
1036 struct list_head ibss_mac_hash[IWL_IBSS_MAC_HASH_SIZE];
1037
1038 /* eeprom */
1039 u8 *eeprom;
1040 struct iwl_eeprom_calib_info *calib_info;
1041
1042 enum ieee80211_if_types iw_mode;
1043
1044 struct sk_buff *ibss_beacon;
1045
1046 /* Last Rx'd beacon timestamp */
1047 u64 timestamp;
1048 u16 beacon_int;
1049 struct ieee80211_vif *vif;
1050
1051 struct iwl_hw_params hw_params;
1052 /* driver/uCode shared Tx Byte Counts and Rx status */
1053 void *shared_virt;
1054 int rb_closed_offset;
1055 /* Physical Pointer to Tx Byte Counts and Rx status */
1056 dma_addr_t shared_phys;
1057
1058 /* Current association information needed to configure the
1059 * hardware */
1060 u16 assoc_id;
1061 u16 assoc_capability;
1062 u8 ps_mode;
1063
1064 struct iwl4965_qos_info qos_data;
1065
1066 struct workqueue_struct *workqueue;
1067
1068 struct work_struct up;
1069 struct work_struct restart;
1070 struct work_struct calibrated_work;
1071 struct work_struct scan_completed;
1072 struct work_struct rx_replenish;
1073 struct work_struct rf_kill;
1074 struct work_struct abort_scan;
1075 struct work_struct update_link_led;
1076 struct work_struct auth_work;
1077 struct work_struct report_work;
1078 struct work_struct request_scan;
1079 struct work_struct beacon_update;
1080 struct work_struct set_monitor;
1081
1082 struct tasklet_struct irq_tasklet;
1083
1084 struct delayed_work init_alive_start;
1085 struct delayed_work alive_start;
1086 struct delayed_work scan_check;
1087 struct delayed_work post_associate;
1088 /* TX Power */
1089 s8 tx_power_user_lmt;
1090 s8 tx_power_channel_lmt;
1091
1092#ifdef CONFIG_PM
1093 u32 pm_state[16];
1094#endif
1095
1096#ifdef CONFIG_IWLWIFI_DEBUG
1097 /* debugging info */
1098 u32 debug_level;
1099 u32 framecnt_to_us;
1100 atomic_t restrict_refcnt;
1101#ifdef CONFIG_IWLWIFI_DEBUGFS
1102 /* debugfs */
1103 struct iwl_debugfs *dbgfs;
1104#endif /* CONFIG_IWLWIFI_DEBUGFS */
1105#endif /* CONFIG_IWLWIFI_DEBUG */
1106
1107 struct work_struct txpower_work;
1108 u32 disable_sens_cal;
1109 u32 disable_chain_noise_cal;
1110 u32 disable_tx_power_cal;
1111 struct work_struct run_time_calib_work;
1112 struct timer_list statistics_periodic;
1113}; /*iwl_priv */
1114
1115static inline void iwl_txq_ctx_activate(struct iwl_priv *priv, int txq_id)
1116{
1117 set_bit(txq_id, &priv->txq_ctx_active_msk);
1118}
1119
1120static inline void iwl_txq_ctx_deactivate(struct iwl_priv *priv, int txq_id)
1121{
1122 clear_bit(txq_id, &priv->txq_ctx_active_msk);
1123}
1124
1125#ifdef CONFIG_IWLWIF_DEBUG
1126const char *iwl_get_tx_fail_reason(u32 status);
1127#else
1128static inline const char *iwl_get_tx_fail_reason(u32 status) { return ""; }
1129#endif
1130
1131
1132static inline struct ieee80211_hdr *iwl_tx_queue_get_hdr(struct iwl_priv *priv,
1133 int txq_id, int idx)
1134{
1135 if (priv->txq[txq_id].txb[idx].skb[0])
1136 return (struct ieee80211_hdr *)priv->txq[txq_id].
1137 txb[idx].skb[0]->data;
1138 return NULL;
1139}
1140
1141
1142static inline int iwl_is_associated(struct iwl_priv *priv)
1143{
1144 return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
1145}
1146
1147static inline int is_channel_valid(const struct iwl_channel_info *ch_info)
1148{
1149 if (ch_info == NULL)
1150 return 0;
1151 return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
1152}
1153
1154static inline int is_channel_radar(const struct iwl_channel_info *ch_info)
1155{
1156 return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
1157}
1158
1159static inline u8 is_channel_a_band(const struct iwl_channel_info *ch_info)
1160{
1161 return ch_info->band == IEEE80211_BAND_5GHZ;
1162}
1163
1164static inline u8 is_channel_bg_band(const struct iwl_channel_info *ch_info)
1165{
1166 return ch_info->band == IEEE80211_BAND_2GHZ;
1167}
1168
1169static inline int is_channel_passive(const struct iwl_channel_info *ch)
1170{
1171 return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
1172}
1173
1174static inline int is_channel_ibss(const struct iwl_channel_info *ch)
1175{
1176 return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
1177}
1178
1179#ifdef CONFIG_IWLWIFI_DEBUG
1180static inline void iwl_print_hex_dump(struct iwl_priv *priv, int level,
1181 void *p, u32 len)
1182{
1183 if (!(priv->debug_level & level))
1184 return;
1185
1186 print_hex_dump(KERN_DEBUG, "iwl data: ", DUMP_PREFIX_OFFSET, 16, 1,
1187 p, len, 1);
1188}
1189#else
1190static inline void iwl_print_hex_dump(struct iwl_priv *priv, int level,
1191 void *p, u32 len)
1192{
1193}
1194#endif
1195
1196extern const struct iwl_channel_info *iwl_get_channel_info(
1197 const struct iwl_priv *priv, enum ieee80211_band band, u16 channel);
1198
1199/* Requires full declaration of iwl_priv before including */
1200
1201#endif /* __iwl_dev_h__ */
Linux kernel - Deliverables
This page took 0.027877 seconds and 5 git commands to generate.