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Zhu Yib481de92007-09-25 17:54:57 -07001/******************************************************************************
2 *
Reinette Chatreeb7ae892008-03-11 16:17:17 -07003 * Copyright(c) 2003 - 2008 Intel Corporation. All rights reserved.
Zhu Yib481de92007-09-25 17:54:57 -07004 *
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:
Winkler, Tomas759ef892008-12-09 11:28:58 -080022 * Intel Linux Wireless <ilw@linux.intel.com>
Zhu Yib481de92007-09-25 17:54:57 -070023 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
24 *
25 *****************************************************************************/
Ben Cahillfcd427b2007-11-29 11:10:00 +080026/*
Tomas Winkler3e0d4cb2008-04-24 11:55:38 -070027 * Please use this file (iwl-dev.h) for driver implementation definitions.
Tomas Winkler5a36ba02008-04-24 11:55:37 -070028 * Please use iwl-commands.h for uCode API definitions.
Ben Cahillfcd427b2007-11-29 11:10:00 +080029 * Please use iwl-4965-hw.h for hardware-related definitions.
30 */
31
Emmanuel Grumbachbe1f3ab62008-06-12 09:47:18 +080032#ifndef __iwl_dev_h__
33#define __iwl_dev_h__
Zhu Yib481de92007-09-25 17:54:57 -070034
Christoph Hellwig5d08cd12007-10-25 17:15:50 +080035#include <linux/pci.h> /* for struct pci_device_id */
36#include <linux/kernel.h>
37#include <net/ieee80211_radiotap.h>
38
Tomas Winkler4fc22b22008-07-21 18:54:42 +030039#define DRV_NAME "iwlagn"
Mohamed Abbasad97edd2008-03-28 16:21:06 -070040#include "iwl-rfkill.h"
Assaf Krauss6bc913b2008-03-11 16:17:18 -070041#include "iwl-eeprom.h"
Christoph Hellwig5d08cd12007-10-25 17:15:50 +080042#include "iwl-4965-hw.h"
Tomas Winkler6f83eaa2008-03-04 18:09:28 -080043#include "iwl-csr.h"
Christoph Hellwig5d08cd12007-10-25 17:15:50 +080044#include "iwl-prph.h"
Tomas Winkler0a6857e2008-03-12 16:58:49 -070045#include "iwl-debug.h"
Mohamed Abbasab53d8a2008-03-25 16:33:36 -070046#include "iwl-led.h"
Mohamed Abbas5da4b552008-04-21 15:41:51 -070047#include "iwl-power.h"
Tomas Winklere227cea2008-07-18 13:53:05 +080048#include "iwl-agn-rs.h"
Christoph Hellwig5d08cd12007-10-25 17:15:50 +080049
Ron Rindjunskyfed90172008-04-15 16:01:41 -070050/* configuration for the iwl4965 */
51extern struct iwl_cfg iwl4965_agn_cfg;
Tomas Winkler5a6a2562008-04-24 11:55:23 -070052extern struct iwl_cfg iwl5300_agn_cfg;
53extern struct iwl_cfg iwl5100_agn_cfg;
54extern struct iwl_cfg iwl5350_agn_cfg;
Esti Kummer47408632008-07-11 11:53:30 +080055extern struct iwl_cfg iwl5100_bg_cfg;
56extern struct iwl_cfg iwl5100_abg_cfg;
Tomas Winkler7100e922008-12-01 16:32:18 -080057extern struct iwl_cfg iwl5150_agn_cfg;
Ron Rindjunskyfed90172008-04-15 16:01:41 -070058
Ron Rindjunsky099b40b2008-04-21 15:41:53 -070059/* CT-KILL constants */
60#define CT_KILL_THRESHOLD 110 /* in Celsius */
Tomas Winkler4bf775c2008-03-04 18:09:31 -080061
Christoph Hellwig5d08cd12007-10-25 17:15:50 +080062/* Default noise level to report when noise measurement is not available.
63 * This may be because we're:
64 * 1) Not associated (4965, no beacon statistics being sent to driver)
65 * 2) Scanning (noise measurement does not apply to associated channel)
66 * 3) Receiving CCK (3945 delivers noise info only for OFDM frames)
67 * Use default noise value of -127 ... this is below the range of measurable
68 * Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
69 * Also, -127 works better than 0 when averaging frames with/without
70 * noise info (e.g. averaging might be done in app); measured dBm values are
71 * always negative ... using a negative value as the default keeps all
72 * averages within an s8's (used in some apps) range of negative values. */
73#define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
74
Christoph Hellwig5d08cd12007-10-25 17:15:50 +080075/*
76 * RTS threshold here is total size [2347] minus 4 FCS bytes
77 * Per spec:
78 * a value of 0 means RTS on all data/management packets
79 * a value > max MSDU size means no RTS
80 * else RTS for data/management frames where MPDU is larger
81 * than RTS value.
82 */
83#define DEFAULT_RTS_THRESHOLD 2347U
84#define MIN_RTS_THRESHOLD 0U
85#define MAX_RTS_THRESHOLD 2347U
86#define MAX_MSDU_SIZE 2304U
87#define MAX_MPDU_SIZE 2346U
88#define DEFAULT_BEACON_INTERVAL 100U
89#define DEFAULT_SHORT_RETRY_LIMIT 7U
90#define DEFAULT_LONG_RETRY_LIMIT 4U
91
Tomas Winklera55360e2008-05-05 10:22:28 +080092struct iwl_rx_mem_buffer {
Johannes Berg40185172008-11-18 01:47:21 +010093 dma_addr_t real_dma_addr;
94 dma_addr_t aligned_dma_addr;
Christoph Hellwig5d08cd12007-10-25 17:15:50 +080095 struct sk_buff *skb;
96 struct list_head list;
97};
98
Christoph Hellwig5d08cd12007-10-25 17:15:50 +080099/*
100 * Generic queue structure
101 *
102 * Contains common data for Rx and Tx queues
103 */
Tomas Winkler443cfd42008-05-15 13:53:57 +0800104struct iwl_queue {
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800105 int n_bd; /* number of BDs in this queue */
106 int write_ptr; /* 1-st empty entry (index) host_w*/
107 int read_ptr; /* last used entry (index) host_r*/
108 dma_addr_t dma_addr; /* physical addr for BD's */
109 int n_window; /* safe queue window */
110 u32 id;
111 int low_mark; /* low watermark, resume queue if free
112 * space more than this */
113 int high_mark; /* high watermark, stop queue if free
114 * space less than this */
115} __attribute__ ((packed));
116
Ben Cahillbc472792007-11-29 11:09:49 +0800117/* One for each TFD */
Tomas Winkler8567c632008-05-15 13:53:58 +0800118struct iwl_tx_info {
Tomas Winkler499b1882008-10-14 12:32:48 -0700119 struct sk_buff *skb[IWL_NUM_OF_TBS - 1];
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800120};
121
122/**
Ron Rindjunsky16466902008-05-05 10:22:50 +0800123 * struct iwl_tx_queue - Tx Queue for DMA
Ben Cahillbc472792007-11-29 11:09:49 +0800124 * @q: generic Rx/Tx queue descriptor
125 * @bd: base of circular buffer of TFDs
126 * @cmd: array of command/Tx buffers
127 * @dma_addr_cmd: physical address of cmd/tx buffer array
128 * @txb: array of per-TFD driver data
129 * @need_update: indicates need to update read/write index
130 * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800131 *
Ben Cahillbc472792007-11-29 11:09:49 +0800132 * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
133 * descriptors) and required locking structures.
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800134 */
Ron Rindjunsky16466902008-05-05 10:22:50 +0800135struct iwl_tx_queue {
Tomas Winkler443cfd42008-05-15 13:53:57 +0800136 struct iwl_queue q;
Tomas Winkler499b1882008-10-14 12:32:48 -0700137 struct iwl_tfd *tfds;
Gregory Greenmanda99c4b2008-08-04 16:00:40 +0800138 struct iwl_cmd *cmd[TFD_TX_CMD_SLOTS];
Tomas Winkler8567c632008-05-15 13:53:58 +0800139 struct iwl_tx_info *txb;
Tomas Winkler3fd07a12008-10-23 23:48:49 -0700140 u8 need_update;
141 u8 sched_retry;
142 u8 active;
143 u8 swq_id;
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800144};
145
146#define IWL_NUM_SCAN_RATES (2)
147
Christoph Hellwigbb8c0932008-01-27 16:41:47 -0800148struct iwl4965_channel_tgd_info {
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800149 u8 type;
150 s8 max_power;
151};
152
Christoph Hellwigbb8c0932008-01-27 16:41:47 -0800153struct iwl4965_channel_tgh_info {
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800154 s64 last_radar_time;
155};
156
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800157/*
158 * One for each channel, holds all channel setup data
159 * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
160 * with one another!
161 */
Assaf Kraussbf85ea42008-03-14 10:38:49 -0700162struct iwl_channel_info {
Christoph Hellwigbb8c0932008-01-27 16:41:47 -0800163 struct iwl4965_channel_tgd_info tgd;
164 struct iwl4965_channel_tgh_info tgh;
Tomas Winkler073d3f52008-04-21 15:41:52 -0700165 struct iwl_eeprom_channel eeprom; /* EEPROM regulatory limit */
166 struct iwl_eeprom_channel fat_eeprom; /* EEPROM regulatory limit for
167 * FAT channel */
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800168
169 u8 channel; /* channel number */
170 u8 flags; /* flags copied from EEPROM */
171 s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
Ben Cahillfcd427b2007-11-29 11:10:00 +0800172 s8 curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) limit */
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800173 s8 min_power; /* always 0 */
174 s8 scan_power; /* (dBm) regul. eeprom, direct scans, any rate */
175
176 u8 group_index; /* 0-4, maps channel to group1/2/3/4/5 */
177 u8 band_index; /* 0-4, maps channel to band1/2/3/4/5 */
Johannes Berg8318d782008-01-24 19:38:38 +0100178 enum ieee80211_band band;
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800179
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800180 /* FAT channel info */
181 s8 fat_max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
182 s8 fat_curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) */
183 s8 fat_min_power; /* always 0 */
184 s8 fat_scan_power; /* (dBm) eeprom, direct scans, any rate */
185 u8 fat_flags; /* flags copied from EEPROM */
Ben Cahillfcd427b2007-11-29 11:10:00 +0800186 u8 fat_extension_channel; /* HT_IE_EXT_CHANNEL_* */
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800187};
188
Christoph Hellwigbb8c0932008-01-27 16:41:47 -0800189struct iwl4965_clip_group {
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800190 /* maximum power level to prevent clipping for each rate, derived by
191 * us from this band's saturation power in EEPROM */
192 const s8 clip_powers[IWL_MAX_RATES];
193};
194
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800195
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
Tomas Winkler6f4083a2008-04-16 16:34:49 -0700209enum iwl_pwr_src {
210 IWL_PWR_SRC_VMAIN,
211 IWL_PWR_SRC_VAUX,
212};
213
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800214#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
Tomas Winklerfcab4232008-05-15 13:54:01 +0800219struct iwl_frame {
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800220 union {
221 struct ieee80211_hdr frame;
Tomas Winkler4bf64ef2008-07-18 13:53:03 +0800222 struct iwl_tx_beacon_cmd beacon;
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800223 u8 raw[IEEE80211_FRAME_LEN];
224 u8 cmd[360];
225 } u;
226 struct list_head list;
227};
228
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800229#define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
230#define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
231#define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
232
233enum {
234 /* CMD_SIZE_NORMAL = 0, */
235 CMD_SIZE_HUGE = (1 << 0),
236 /* CMD_SYNC = 0, */
237 CMD_ASYNC = (1 << 1),
238 /* CMD_NO_SKB = 0, */
239 CMD_WANT_SKB = (1 << 2),
240};
241
Tomas Winkler857485c2008-03-21 13:53:44 -0700242struct iwl_cmd;
Tomas Winklerc79dd5b2008-03-12 16:58:50 -0700243struct iwl_priv;
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800244
Tomas Winkler857485c2008-03-21 13:53:44 -0700245struct iwl_cmd_meta {
246 struct iwl_cmd_meta *source;
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800247 union {
248 struct sk_buff *skb;
Tomas Winklerc79dd5b2008-03-12 16:58:50 -0700249 int (*callback)(struct iwl_priv *priv,
Tomas Winkler857485c2008-03-21 13:53:44 -0700250 struct iwl_cmd *cmd, struct sk_buff *skb);
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800251 } __attribute__ ((packed)) u;
252
253 /* The CMD_SIZE_HUGE flag bit indicates that the command
254 * structure is stored at the end of the shared queue memory. */
255 u32 flags;
Tomas Winkler499b1882008-10-14 12:32:48 -0700256 DECLARE_PCI_UNMAP_ADDR(mapping)
257 DECLARE_PCI_UNMAP_LEN(len)
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800258} __attribute__ ((packed));
259
Emmanuel Grumbachd2f18bf2008-05-29 16:35:27 +0800260#define IWL_CMD_MAX_PAYLOAD 320
Ron Rindjunskybd68fb62008-05-29 16:34:49 +0800261
Ben Cahillbc472792007-11-29 11:09:49 +0800262/**
Tomas Winkler857485c2008-03-21 13:53:44 -0700263 * struct iwl_cmd
Ben Cahillbc472792007-11-29 11:09:49 +0800264 *
265 * For allocation of the command and tx queues, this establishes the overall
266 * size of the largest command we send to uCode, except for a scan command
267 * (which is relatively huge; space is allocated separately).
268 */
Tomas Winkler857485c2008-03-21 13:53:44 -0700269struct iwl_cmd {
270 struct iwl_cmd_meta meta; /* driver data */
271 struct iwl_cmd_header hdr; /* uCode API */
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800272 union {
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800273 u32 flags;
274 u8 val8;
275 u16 val16;
276 u32 val32;
Tomas Winkler83d527d2008-05-15 13:54:05 +0800277 struct iwl_tx_cmd tx;
Ron Rindjunskybd68fb62008-05-29 16:34:49 +0800278 u8 payload[IWL_CMD_MAX_PAYLOAD];
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800279 } __attribute__ ((packed)) cmd;
280} __attribute__ ((packed));
281
Tomas Winkler3257e5d2008-10-14 12:32:43 -0700282
Tomas Winkler857485c2008-03-21 13:53:44 -0700283struct iwl_host_cmd {
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800284 u8 id;
285 u16 len;
Tomas Winkler857485c2008-03-21 13:53:44 -0700286 struct iwl_cmd_meta meta;
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800287 const void *data;
288};
289
Tomas Winkler857485c2008-03-21 13:53:44 -0700290#define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_cmd) - \
291 sizeof(struct iwl_cmd_meta))
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800292
293/*
294 * RX related structures and functions
295 */
296#define RX_FREE_BUFFERS 64
297#define RX_LOW_WATERMARK 8
298
299#define SUP_RATE_11A_MAX_NUM_CHANNELS 8
300#define SUP_RATE_11B_MAX_NUM_CHANNELS 4
301#define SUP_RATE_11G_MAX_NUM_CHANNELS 12
302
303/**
Tomas Winklera55360e2008-05-05 10:22:28 +0800304 * struct iwl_rx_queue - Rx queue
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800305 * @read: Shared index to newest available Rx buffer
306 * @write: Shared index to oldest written Rx packet
307 * @free_count: Number of pre-allocated buffers in rx_free
308 * @rx_free: list of free SKBs for use
309 * @rx_used: List of Rx buffers with no SKB
310 * @need_update: flag to indicate we need to update read/write index
311 *
Tomas Winklera55360e2008-05-05 10:22:28 +0800312 * NOTE: rx_free and rx_used are used as a FIFO for iwl_rx_mem_buffers
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800313 */
Tomas Winklera55360e2008-05-05 10:22:28 +0800314struct iwl_rx_queue {
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800315 __le32 *bd;
316 dma_addr_t dma_addr;
Tomas Winklera55360e2008-05-05 10:22:28 +0800317 struct iwl_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
318 struct iwl_rx_mem_buffer *queue[RX_QUEUE_SIZE];
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800319 u32 read;
320 u32 write;
321 u32 free_count;
322 struct list_head rx_free;
323 struct list_head rx_used;
324 int need_update;
Winkler, Tomas8d864222008-11-07 09:58:39 -0800325 struct iwl_rb_status *rb_stts;
326 dma_addr_t rb_stts_dma;
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800327 spinlock_t lock;
328};
329
330#define IWL_SUPPORTED_RATES_IE_LEN 8
331
332#define SCAN_INTERVAL 100
333
334#define MAX_A_CHANNELS 252
335#define MIN_A_CHANNELS 7
336
337#define MAX_B_CHANNELS 14
338#define MIN_B_CHANNELS 1
339
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800340#define MAX_TID_COUNT 9
341
342#define IWL_INVALID_RATE 0xFF
343#define IWL_INVALID_VALUE -1
344
Ben Cahillbc472792007-11-29 11:09:49 +0800345/**
Tomas Winkler6def9762008-05-05 10:22:31 +0800346 * struct iwl_ht_agg -- aggregation status while waiting for block-ack
Ben Cahillbc472792007-11-29 11:09:49 +0800347 * @txq_id: Tx queue used for Tx attempt
348 * @frame_count: # frames attempted by Tx command
349 * @wait_for_ba: Expect block-ack before next Tx reply
350 * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window
351 * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window
352 * @bitmap1: High order, one bit for each frame pending ACK in Tx window
353 * @rate_n_flags: Rate at which Tx was attempted
354 *
355 * If REPLY_TX indicates that aggregation was attempted, driver must wait
356 * for block ack (REPLY_COMPRESSED_BA). This struct stores tx reply info
357 * until block ack arrives.
358 */
Tomas Winkler6def9762008-05-05 10:22:31 +0800359struct iwl_ht_agg {
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800360 u16 txq_id;
361 u16 frame_count;
362 u16 wait_for_ba;
363 u16 start_idx;
Ron Rindjunskyfe01b472008-01-28 14:07:24 +0200364 u64 bitmap;
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800365 u32 rate_n_flags;
Ron Rindjunskyfe01b472008-01-28 14:07:24 +0200366#define IWL_AGG_OFF 0
367#define IWL_AGG_ON 1
368#define IWL_EMPTYING_HW_QUEUE_ADDBA 2
369#define IWL_EMPTYING_HW_QUEUE_DELBA 3
370 u8 state;
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800371};
Ron Rindjunskyfe01b472008-01-28 14:07:24 +0200372
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800373
Tomas Winkler6def9762008-05-05 10:22:31 +0800374struct iwl_tid_data {
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800375 u16 seq_number;
Ron Rindjunskyfe01b472008-01-28 14:07:24 +0200376 u16 tfds_in_queue;
Tomas Winkler6def9762008-05-05 10:22:31 +0800377 struct iwl_ht_agg agg;
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800378};
379
Tomas Winkler6def9762008-05-05 10:22:31 +0800380struct iwl_hw_key {
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800381 enum ieee80211_key_alg alg;
382 int keylen;
Emmanuel Grumbach0211ddd2008-04-14 21:16:07 -0700383 u8 keyidx;
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800384 u8 key[32];
385};
386
Christoph Hellwigbb8c0932008-01-27 16:41:47 -0800387union iwl4965_ht_rate_supp {
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800388 u16 rates;
389 struct {
390 u8 siso_rate;
391 u8 mimo_rate;
392 };
393};
394
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800395#define CFG_HT_RX_AMPDU_FACTOR_DEF (0x3)
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800396#define CFG_HT_MPDU_DENSITY_2USEC (0x5)
397#define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_2USEC
398
Ron Rindjunsky9e0cc6d2007-11-26 16:14:36 +0200399struct iwl_ht_info {
400 /* self configuration data */
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800401 u8 is_ht;
Ron Rindjunsky9e0cc6d2007-11-26 16:14:36 +0200402 u8 supported_chan_width;
Ron Rindjunsky12837be2008-09-03 11:26:47 +0800403 u8 sm_ps;
Ron Rindjunsky9e0cc6d2007-11-26 16:14:36 +0200404 u8 is_green_field;
Tomas Winklerbb542442007-12-05 20:59:59 +0200405 u8 sgf; /* HT_SHORT_GI_* short guard interval */
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800406 u8 max_amsdu_size;
407 u8 ampdu_factor;
408 u8 mpdu_density;
Johannes Bergd9fe60d2008-10-09 12:13:49 +0200409 struct ieee80211_mcs_info mcs;
Ron Rindjunsky9e0cc6d2007-11-26 16:14:36 +0200410 /* BSS related data */
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800411 u8 extension_chan_offset;
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800412 u8 tx_chan_width;
Ron Rindjunsky9e0cc6d2007-11-26 16:14:36 +0200413 u8 ht_protection;
414 u8 non_GF_STA_present;
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800415};
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800416
Emmanuel Grumbach1ff50bd2008-07-11 11:53:34 +0800417union iwl_qos_capabity {
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800418 struct {
419 u8 edca_count:4; /* bit 0-3 */
420 u8 q_ack:1; /* bit 4 */
421 u8 queue_request:1; /* bit 5 */
422 u8 txop_request:1; /* bit 6 */
423 u8 reserved:1; /* bit 7 */
424 } q_AP;
425 struct {
426 u8 acvo_APSD:1; /* bit 0 */
427 u8 acvi_APSD:1; /* bit 1 */
428 u8 ac_bk_APSD:1; /* bit 2 */
429 u8 ac_be_APSD:1; /* bit 3 */
430 u8 q_ack:1; /* bit 4 */
431 u8 max_len:2; /* bit 5-6 */
432 u8 more_data_ack:1; /* bit 7 */
433 } q_STA;
434 u8 val;
435};
436
437/* QoS structures */
Emmanuel Grumbach1ff50bd2008-07-11 11:53:34 +0800438struct iwl_qos_info {
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800439 int qos_enable;
440 int qos_active;
Emmanuel Grumbach1ff50bd2008-07-11 11:53:34 +0800441 union iwl_qos_capabity qos_cap;
442 struct iwl_qosparam_cmd def_qos_parm;
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800443};
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800444
445#define STA_PS_STATUS_WAKE 0
446#define STA_PS_STATUS_SLEEP 1
447
Tomas Winkler6def9762008-05-05 10:22:31 +0800448struct iwl_station_entry {
Tomas Winkler133636d2008-05-05 10:22:34 +0800449 struct iwl_addsta_cmd sta;
Tomas Winkler6def9762008-05-05 10:22:31 +0800450 struct iwl_tid_data tid[MAX_TID_COUNT];
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800451 u8 used;
452 u8 ps_status;
Tomas Winkler6def9762008-05-05 10:22:31 +0800453 struct iwl_hw_key keyinfo;
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800454};
455
456/* one for each uCode image (inst/data, boot/init/runtime) */
457struct fw_desc {
458 void *v_addr; /* access by driver */
459 dma_addr_t p_addr; /* access by card's busmaster DMA */
460 u32 len; /* bytes */
461};
462
463/* uCode file layout */
Ron Rindjunsky14b3d332008-06-13 15:44:54 +0800464struct iwl_ucode {
Chatre, Reinettec02b3ac2008-12-02 12:14:05 -0800465 __le32 ver; /* major/minor/API/serial */
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800466 __le32 inst_size; /* bytes of runtime instructions */
467 __le32 data_size; /* bytes of runtime data */
468 __le32 init_size; /* bytes of initialization instructions */
469 __le32 init_data_size; /* bytes of initialization data */
470 __le32 boot_size; /* bytes of bootstrap instructions */
471 u8 data[0]; /* data in same order as "size" elements */
472};
473
Christoph Hellwigbb8c0932008-01-27 16:41:47 -0800474struct iwl4965_ibss_seq {
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800475 u8 mac[ETH_ALEN];
476 u16 seq_num;
477 u16 frag_num;
478 unsigned long packet_time;
479 struct list_head list;
480};
481
Emmanuel Grumbachf0832f12008-04-16 16:34:47 -0700482struct iwl_sensitivity_ranges {
483 u16 min_nrg_cck;
484 u16 max_nrg_cck;
485
486 u16 nrg_th_cck;
487 u16 nrg_th_ofdm;
488
489 u16 auto_corr_min_ofdm;
490 u16 auto_corr_min_ofdm_mrc;
491 u16 auto_corr_min_ofdm_x1;
492 u16 auto_corr_min_ofdm_mrc_x1;
493
494 u16 auto_corr_max_ofdm;
495 u16 auto_corr_max_ofdm_mrc;
496 u16 auto_corr_max_ofdm_x1;
497 u16 auto_corr_max_ofdm_mrc_x1;
498
499 u16 auto_corr_max_cck;
500 u16 auto_corr_max_cck_mrc;
501 u16 auto_corr_min_cck;
502 u16 auto_corr_min_cck_mrc;
503};
504
Ron Rindjunsky099b40b2008-04-21 15:41:53 -0700505
506#define IWL_FAT_CHANNEL_52 BIT(IEEE80211_BAND_5GHZ)
507
Ben Cahillbc472792007-11-29 11:09:49 +0800508/**
Tomas Winkler5425e492008-04-15 16:01:38 -0700509 * struct iwl_hw_params
Ben Cahillbc472792007-11-29 11:09:49 +0800510 * @max_txq_num: Max # Tx queues supported
Zhu Yif3f911d2008-12-02 12:14:04 -0800511 * @dma_chnl_num: Number of Tx DMA/FIFO channels
Tomas Winkler4ddbb7d2008-11-07 09:58:40 -0800512 * @scd_bc_tbls_size: size of scheduler byte count tables
Ron Rindjunsky099b40b2008-04-21 15:41:53 -0700513 * @tx/rx_chains_num: Number of TX/RX chains
514 * @valid_tx/rx_ant: usable antennas
Ben Cahillbc472792007-11-29 11:09:49 +0800515 * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
Ben Cahillbc472792007-11-29 11:09:49 +0800516 * @max_rxq_log: Log-base-2 of max_rxq_size
Ron Rindjunsky099b40b2008-04-21 15:41:53 -0700517 * @rx_buf_size: Rx buffer size
Ben Cahillbc472792007-11-29 11:09:49 +0800518 * @max_stations:
519 * @bcast_sta_id:
Ron Rindjunsky099b40b2008-04-21 15:41:53 -0700520 * @fat_channel: is 40MHz width possible in band 2.4
521 * BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ)
522 * @sw_crypto: 0 for hw, 1 for sw
523 * @max_xxx_size: for ucode uses
524 * @ct_kill_threshold: temperature threshold
Tomas Winklera96a27f2008-10-23 23:48:56 -0700525 * @calib_init_cfg: setup initial calibrations for the hw
Emmanuel Grumbachf0832f12008-04-16 16:34:47 -0700526 * @struct iwl_sensitivity_ranges: range of sensitivity values
Ben Cahillbc472792007-11-29 11:09:49 +0800527 */
Tomas Winkler5425e492008-04-15 16:01:38 -0700528struct iwl_hw_params {
Zhu Yif3f911d2008-12-02 12:14:04 -0800529 u8 max_txq_num;
530 u8 dma_chnl_num;
Tomas Winkler4ddbb7d2008-11-07 09:58:40 -0800531 u16 scd_bc_tbls_size;
Tomas Winklerec35cf22008-04-15 16:01:39 -0700532 u8 tx_chains_num;
533 u8 rx_chains_num;
534 u8 valid_tx_ant;
535 u8 valid_rx_ant;
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800536 u16 max_rxq_size;
Tomas Winklerec35cf22008-04-15 16:01:39 -0700537 u16 max_rxq_log;
Ron Rindjunsky9ee1ba42007-11-26 16:14:42 +0200538 u32 rx_buf_size;
539 u32 max_pkt_size;
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800540 u8 max_stations;
541 u8 bcast_sta_id;
Ron Rindjunsky099b40b2008-04-21 15:41:53 -0700542 u8 fat_channel;
543 u8 sw_crypto;
544 u32 max_inst_size;
545 u32 max_data_size;
546 u32 max_bsm_size;
547 u32 ct_kill_threshold; /* value in hw-dependent units */
Tomas Winklerbe5d56e2008-10-08 09:37:27 +0800548 u32 calib_init_cfg;
Emmanuel Grumbachf0832f12008-04-16 16:34:47 -0700549 const struct iwl_sensitivity_ranges *sens;
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800550};
551
Emmanuel Grumbacha9841012008-05-15 13:54:08 +0800552#define HT_SHORT_GI_20MHZ (1 << 0)
553#define HT_SHORT_GI_40MHZ (1 << 1)
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800554
555
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800556/******************************************************************************
557 *
Emmanuel Grumbacha33c2f42008-09-03 11:26:56 +0800558 * Functions implemented in core module which are forward declared here
559 * for use by iwl-[4-5].c
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800560 *
Emmanuel Grumbacha33c2f42008-09-03 11:26:56 +0800561 * NOTE: The implementation of these functions are not hardware specific
562 * which is why they are in the core module files.
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800563 *
564 * Naming convention --
Emmanuel Grumbacha33c2f42008-09-03 11:26:56 +0800565 * iwl_ <-- Is part of iwlwifi
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800566 * iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
Christoph Hellwigbb8c0932008-01-27 16:41:47 -0800567 * iwl4965_bg_ <-- Called from work queue context
568 * iwl4965_mac_ <-- mac80211 callback
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800569 *
570 ****************************************************************************/
Emmanuel Grumbach5b9f8cd2008-10-29 14:05:46 -0700571extern void iwl_update_chain_flags(struct iwl_priv *priv);
572extern int iwl_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src);
Emmanuel Grumbacha33c2f42008-09-03 11:26:56 +0800573extern const u8 iwl_bcast_addr[ETH_ALEN];
Tomas Winklerb3bbacb2008-05-29 16:35:01 +0800574extern int iwl_rxq_stop(struct iwl_priv *priv);
Tomas Winklerda1bc452008-05-29 16:35:00 +0800575extern void iwl_txq_ctx_stop(struct iwl_priv *priv);
Tomas Winkler443cfd42008-05-15 13:53:57 +0800576extern int iwl_queue_space(const struct iwl_queue *q);
Tomas Winklerfd4abac2008-05-15 13:54:07 +0800577static inline int iwl_queue_used(const struct iwl_queue *q, int i)
578{
579 return q->write_ptr > q->read_ptr ?
580 (i >= q->read_ptr && i < q->write_ptr) :
581 !(i < q->read_ptr && i >= q->write_ptr);
582}
583
584
585static inline u8 get_cmd_index(struct iwl_queue *q, u32 index, int is_huge)
586{
587 /* This is for scan command, the big buffer at end of command array */
588 if (is_huge)
589 return q->n_window; /* must be power of 2 */
590
591 /* Otherwise, use normal size buffers */
592 return index & (q->n_window - 1);
593}
594
595
Tomas Winklerc79dd5b2008-03-12 16:58:50 -0700596struct iwl_priv;
Zhu Yib481de92007-09-25 17:54:57 -0700597
Tomas Winkler78330fd2008-02-06 02:37:18 +0200598
Tomas Winkler4ddbb7d2008-11-07 09:58:40 -0800599struct iwl_dma_ptr {
600 dma_addr_t dma;
601 void *addr;
Zhu Yib481de92007-09-25 17:54:57 -0700602 size_t size;
603};
604
Zhu Yib481de92007-09-25 17:54:57 -0700605#define IWL_CHANNEL_WIDTH_20MHZ 0
606#define IWL_CHANNEL_WIDTH_40MHZ 1
607
Zhu Yib481de92007-09-25 17:54:57 -0700608#define IWL_OPERATION_MODE_AUTO 0
609#define IWL_OPERATION_MODE_HT_ONLY 1
610#define IWL_OPERATION_MODE_MIXED 2
611#define IWL_OPERATION_MODE_20MHZ 3
612
Tomas Winkler3195cdb2008-04-23 17:15:00 -0700613#define IWL_TX_CRC_SIZE 4
614#define IWL_TX_DELIMITER_SIZE 4
Zhu Yib481de92007-09-25 17:54:57 -0700615
Zhu Yib481de92007-09-25 17:54:57 -0700616#define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
Zhu Yib481de92007-09-25 17:54:57 -0700617
Zhu Yib481de92007-09-25 17:54:57 -0700618/* Sensitivity and chain noise calibration */
619#define INTERFERENCE_DATA_AVAILABLE __constant_cpu_to_le32(1)
620#define INITIALIZATION_VALUE 0xFFFF
621#define CAL_NUM_OF_BEACONS 20
622#define MAXIMUM_ALLOWED_PATHLOSS 15
623
Zhu Yib481de92007-09-25 17:54:57 -0700624#define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
625
626#define MAX_FA_OFDM 50
627#define MIN_FA_OFDM 5
628#define MAX_FA_CCK 50
629#define MIN_FA_CCK 5
630
Zhu Yib481de92007-09-25 17:54:57 -0700631#define AUTO_CORR_STEP_OFDM 1
632
Zhu Yib481de92007-09-25 17:54:57 -0700633#define AUTO_CORR_STEP_CCK 3
634#define AUTO_CORR_MAX_TH_CCK 160
635
Zhu Yib481de92007-09-25 17:54:57 -0700636#define NRG_DIFF 2
637#define NRG_STEP_CCK 2
638#define NRG_MARGIN 8
639#define MAX_NUMBER_CCK_NO_FA 100
640
641#define AUTO_CORR_CCK_MIN_VAL_DEF (125)
642
643#define CHAIN_A 0
644#define CHAIN_B 1
645#define CHAIN_C 2
646#define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
647#define ALL_BAND_FILTER 0xFF00
648#define IN_BAND_FILTER 0xFF
649#define MIN_AVERAGE_NOISE_MAX_VALUE 0xFFFFFFFF
650
Tomas Winkler3195cdb2008-04-23 17:15:00 -0700651#define NRG_NUM_PREV_STAT_L 20
652#define NUM_RX_CHAINS 3
653
Christoph Hellwigbb8c0932008-01-27 16:41:47 -0800654enum iwl4965_false_alarm_state {
Zhu Yib481de92007-09-25 17:54:57 -0700655 IWL_FA_TOO_MANY = 0,
656 IWL_FA_TOO_FEW = 1,
657 IWL_FA_GOOD_RANGE = 2,
658};
659
Christoph Hellwigbb8c0932008-01-27 16:41:47 -0800660enum iwl4965_chain_noise_state {
Zhu Yib481de92007-09-25 17:54:57 -0700661 IWL_CHAIN_NOISE_ALIVE = 0, /* must be 0 */
Grumbach, Emmanuel04816442008-09-03 11:26:53 +0800662 IWL_CHAIN_NOISE_ACCUMULATE,
663 IWL_CHAIN_NOISE_CALIBRATED,
664 IWL_CHAIN_NOISE_DONE,
Zhu Yib481de92007-09-25 17:54:57 -0700665};
666
Christoph Hellwigbb8c0932008-01-27 16:41:47 -0800667enum iwl4965_calib_enabled_state {
Zhu Yib481de92007-09-25 17:54:57 -0700668 IWL_CALIB_DISABLED = 0, /* must be 0 */
669 IWL_CALIB_ENABLED = 1,
670};
671
672struct statistics_general_data {
673 u32 beacon_silence_rssi_a;
674 u32 beacon_silence_rssi_b;
675 u32 beacon_silence_rssi_c;
676 u32 beacon_energy_a;
677 u32 beacon_energy_b;
678 u32 beacon_energy_c;
679};
680
Tomas Winklerf69f42a2008-10-23 23:48:52 -0700681
682/*
683 * enum iwl_calib
684 * defines the order in which results of initial calibrations
685 * should be sent to the runtime uCode
686 */
687enum iwl_calib {
688 IWL_CALIB_XTAL,
Tomas Winkler819500c2008-12-01 16:32:19 -0800689 IWL_CALIB_DC,
Tomas Winklerf69f42a2008-10-23 23:48:52 -0700690 IWL_CALIB_LO,
691 IWL_CALIB_TX_IQ,
692 IWL_CALIB_TX_IQ_PERD,
Tomas Winkler201706a2008-11-19 15:32:24 -0800693 IWL_CALIB_BASE_BAND,
Tomas Winklerf69f42a2008-10-23 23:48:52 -0700694 IWL_CALIB_MAX
695};
696
Tomas Winkler6e21f2c2008-09-03 11:26:37 +0800697/* Opaque calibration results */
698struct iwl_calib_result {
699 void *buf;
700 size_t buf_len;
Tomas Winkler7c616cb2008-05-29 16:35:05 +0800701};
702
Ron Rindjunskydbb983b2008-05-15 13:54:12 +0800703enum ucode_type {
704 UCODE_NONE = 0,
705 UCODE_INIT,
706 UCODE_RT
707};
708
Zhu Yib481de92007-09-25 17:54:57 -0700709/* Sensitivity calib data */
Emmanuel Grumbachf0832f12008-04-16 16:34:47 -0700710struct iwl_sensitivity_data {
Zhu Yib481de92007-09-25 17:54:57 -0700711 u32 auto_corr_ofdm;
712 u32 auto_corr_ofdm_mrc;
713 u32 auto_corr_ofdm_x1;
714 u32 auto_corr_ofdm_mrc_x1;
715 u32 auto_corr_cck;
716 u32 auto_corr_cck_mrc;
717
718 u32 last_bad_plcp_cnt_ofdm;
719 u32 last_fa_cnt_ofdm;
720 u32 last_bad_plcp_cnt_cck;
721 u32 last_fa_cnt_cck;
722
723 u32 nrg_curr_state;
724 u32 nrg_prev_state;
725 u32 nrg_value[10];
726 u8 nrg_silence_rssi[NRG_NUM_PREV_STAT_L];
727 u32 nrg_silence_ref;
728 u32 nrg_energy_idx;
729 u32 nrg_silence_idx;
730 u32 nrg_th_cck;
731 s32 nrg_auto_corr_silence_diff;
732 u32 num_in_cck_no_fa;
733 u32 nrg_th_ofdm;
Zhu Yib481de92007-09-25 17:54:57 -0700734};
735
736/* Chain noise (differential Rx gain) calib data */
Emmanuel Grumbachf0832f12008-04-16 16:34:47 -0700737struct iwl_chain_noise_data {
Grumbach, Emmanuel04816442008-09-03 11:26:53 +0800738 u32 active_chains;
Zhu Yib481de92007-09-25 17:54:57 -0700739 u32 chain_noise_a;
740 u32 chain_noise_b;
741 u32 chain_noise_c;
742 u32 chain_signal_a;
743 u32 chain_signal_b;
744 u32 chain_signal_c;
Grumbach, Emmanuel04816442008-09-03 11:26:53 +0800745 u16 beacon_count;
Zhu Yib481de92007-09-25 17:54:57 -0700746 u8 disconn_array[NUM_RX_CHAINS];
747 u8 delta_gain_code[NUM_RX_CHAINS];
748 u8 radio_write;
Grumbach, Emmanuel04816442008-09-03 11:26:53 +0800749 u8 state;
Zhu Yib481de92007-09-25 17:54:57 -0700750};
751
Ben Cahillabceddb2007-11-29 11:09:50 +0800752#define EEPROM_SEM_TIMEOUT 10 /* milliseconds */
753#define EEPROM_SEM_RETRY_LIMIT 1000 /* number of attempts (not time) */
Zhu Yib481de92007-09-25 17:54:57 -0700754
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800755
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800756enum {
757 MEASUREMENT_READY = (1 << 0),
758 MEASUREMENT_ACTIVE = (1 << 1),
759};
760
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800761
Ron Rindjunskydfe7d452008-04-15 16:01:45 -0700762#define IWL_MAX_NUM_QUEUES 20 /* FIXME: do dynamic allocation */
763
Tomas Winklerc79dd5b2008-03-12 16:58:50 -0700764struct iwl_priv {
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800765
766 /* ieee device used by generic ieee processing code */
767 struct ieee80211_hw *hw;
768 struct ieee80211_channel *ieee_channels;
769 struct ieee80211_rate *ieee_rates;
Tomas Winkler82b9a122008-03-04 18:09:30 -0800770 struct iwl_cfg *cfg;
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800771
772 /* temporary frame storage list */
773 struct list_head free_frames;
774 int frames_count;
775
Johannes Berg8318d782008-01-24 19:38:38 +0100776 enum ieee80211_band band;
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800777 int alloc_rxb_skb;
778
Tomas Winklerc79dd5b2008-03-12 16:58:50 -0700779 void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv,
Tomas Winklera55360e2008-05-05 10:22:28 +0800780 struct iwl_rx_mem_buffer *rxb);
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800781
Johannes Berg8318d782008-01-24 19:38:38 +0100782 struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800783
Tomas Winkler4fc22b22008-07-21 18:54:42 +0300784#ifdef CONFIG_IWLAGN_SPECTRUM_MEASUREMENT
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800785 /* spectrum measurement report caching */
Christoph Hellwigbb8c0932008-01-27 16:41:47 -0800786 struct iwl4965_spectrum_notification measure_report;
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800787 u8 measurement_status;
788#endif
789 /* ucode beacon time */
790 u32 ucode_beacon_time;
791
Christoph Hellwigbb8c0932008-01-27 16:41:47 -0800792 /* we allocate array of iwl4965_channel_info for NIC's valid channels.
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800793 * Access via channel # using indirect index array */
Assaf Kraussbf85ea42008-03-14 10:38:49 -0700794 struct iwl_channel_info *channel_info; /* channel info array */
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800795 u8 channel_count; /* # of channels */
796
797 /* each calibration channel group in the EEPROM has a derived
798 * clip setting for each rate. */
Christoph Hellwigbb8c0932008-01-27 16:41:47 -0800799 const struct iwl4965_clip_group clip_groups[5];
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800800
801 /* thermal calibration */
802 s32 temperature; /* degrees Kelvin */
803 s32 last_temperature;
804
Tomas Winkler7c616cb2008-05-29 16:35:05 +0800805 /* init calibration results */
Tomas Winkler6e21f2c2008-09-03 11:26:37 +0800806 struct iwl_calib_result calib_results[IWL_CALIB_MAX];
Tomas Winkler7c616cb2008-05-29 16:35:05 +0800807
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800808 /* Scan related variables */
809 unsigned long last_scan_jiffies;
Mohamed Abbas7878a5a2007-11-29 11:10:13 +0800810 unsigned long next_scan_jiffies;
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800811 unsigned long scan_start;
812 unsigned long scan_pass_start;
813 unsigned long scan_start_tsf;
Tomas Winkler76eff182008-10-14 12:32:45 -0700814 struct iwl_scan_cmd *scan;
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800815 int scan_bands;
816 int one_direct_scan;
817 u8 direct_ssid_len;
818 u8 direct_ssid[IW_ESSID_MAX_SIZE];
Tomas Winkler76eff182008-10-14 12:32:45 -0700819 u8 scan_tx_ant[IEEE80211_NUM_BANDS];
820 u8 mgmt_tx_ant;
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800821
822 /* spinlock */
823 spinlock_t lock; /* protect general shared data */
824 spinlock_t hcmd_lock; /* protect hcmd */
825 struct mutex mutex;
826
827 /* basic pci-network driver stuff */
828 struct pci_dev *pci_dev;
829
830 /* pci hardware address support */
831 void __iomem *hw_base;
Tomas Winklerb661c812008-04-23 17:14:54 -0700832 u32 hw_rev;
833 u32 hw_wa_rev;
834 u8 rev_id;
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800835
836 /* uCode images, save to reload in case of failure */
Chatre, Reinettec02b3ac2008-12-02 12:14:05 -0800837 u32 ucode_ver; /* version of ucode, copy of
838 iwl_ucode.ver */
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800839 struct fw_desc ucode_code; /* runtime inst */
840 struct fw_desc ucode_data; /* runtime data original */
841 struct fw_desc ucode_data_backup; /* runtime data save/restore */
842 struct fw_desc ucode_init; /* initialization inst */
843 struct fw_desc ucode_init_data; /* initialization data */
844 struct fw_desc ucode_boot; /* bootstrap inst */
Ron Rindjunskydbb983b2008-05-15 13:54:12 +0800845 enum ucode_type ucode_type;
846 u8 ucode_write_complete; /* the image write is complete */
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800847
848
Tomas Winkler3195c1f2008-10-08 09:37:30 +0800849 struct iwl_rxon_time_cmd rxon_timing;
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800850
851 /* We declare this const so it can only be
852 * changed via explicit cast within the
853 * routines that actually update the physical
854 * hardware */
Gregory Greenmanc1adf9f2008-05-15 13:53:59 +0800855 const struct iwl_rxon_cmd active_rxon;
856 struct iwl_rxon_cmd staging_rxon;
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800857
858 int error_recovering;
Gregory Greenmanc1adf9f2008-05-15 13:53:59 +0800859 struct iwl_rxon_cmd recovery_rxon;
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800860
861 /* 1st responses from initialize and runtime uCode images.
862 * 4965's initialize alive response contains some calibration data. */
Tomas Winkler885ba202008-05-29 16:34:55 +0800863 struct iwl_init_alive_resp card_alive_init;
864 struct iwl_alive_resp card_alive;
Reinette Chatreeadd3c42008-04-14 21:16:12 -0700865#ifdef CONFIG_IWLWIFI_RFKILL
Adel Gadllah80fcc9e2008-07-01 17:49:50 +0200866 struct rfkill *rfkill;
Mohamed Abbasad97edd2008-03-28 16:21:06 -0700867#endif
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800868
Reinette Chatre36316122008-04-02 10:50:35 -0700869#ifdef CONFIG_IWLWIFI_LEDS
Tomas Winkler0eee6122008-07-11 11:53:36 +0800870 struct iwl_led led[IWL_LED_TRG_MAX];
Mohamed Abbasab53d8a2008-03-25 16:33:36 -0700871 unsigned long last_blink_time;
872 u8 last_blink_rate;
873 u8 allow_blinking;
874 u64 led_tpt;
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800875#endif
876
877 u16 active_rate;
878 u16 active_rate_basic;
879
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800880 u8 assoc_station_added;
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800881 u8 start_calib;
Emmanuel Grumbachf0832f12008-04-16 16:34:47 -0700882 struct iwl_sensitivity_data sensitivity_data;
883 struct iwl_chain_noise_data chain_noise_data;
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800884 __le16 sensitivity_tbl[HD_TABLE_SIZE];
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800885
Ron Rindjunsky9e0cc6d2007-11-26 16:14:36 +0200886 struct iwl_ht_info current_ht_config;
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800887 u8 last_phy_res[100];
888
889 /* Rate scaling data */
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800890 s8 data_retry_limit;
891 u8 retry_rate;
892
893 wait_queue_head_t wait_command_queue;
894
895 int activity_timer_active;
896
897 /* Rx and Tx DMA processing queues */
Tomas Winklera55360e2008-05-05 10:22:28 +0800898 struct iwl_rx_queue rxq;
Ron Rindjunsky16466902008-05-05 10:22:50 +0800899 struct iwl_tx_queue txq[IWL_MAX_NUM_QUEUES];
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800900 unsigned long txq_ctx_active_msk;
Tomas Winkler4ddbb7d2008-11-07 09:58:40 -0800901 struct iwl_dma_ptr kw; /* keep warm address */
902 struct iwl_dma_ptr scd_bc_tbls;
903
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800904 u32 scd_base_addr; /* scheduler sram base address */
905
906 unsigned long status;
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800907
Tomas Winklera96a27f2008-10-23 23:48:56 -0700908 int last_rx_rssi; /* From Rx packet statistics */
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800909 int last_rx_noise; /* From beacon statistics */
910
Tomas Winkler19758be2008-03-12 16:58:51 -0700911 /* counts mgmt, ctl, and data packets */
912 struct traffic_stats {
913 u32 cnt;
914 u64 bytes;
915 } tx_stats[3], rx_stats[3];
916
Mohamed Abbas5da4b552008-04-21 15:41:51 -0700917 struct iwl_power_mgr power_data;
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800918
Emmanuel Grumbach8f91aec2008-06-30 17:23:07 +0800919 struct iwl_notif_statistics statistics;
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800920 unsigned long last_statistics_time;
921
922 /* context information */
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800923 u16 rates_mask;
924
925 u32 power_mode;
926 u32 antenna;
927 u8 bssid[ETH_ALEN];
928 u16 rts_threshold;
929 u8 mac_addr[ETH_ALEN];
930
931 /*station table variables */
932 spinlock_t sta_lock;
933 int num_stations;
Tomas Winkler6def9762008-05-05 10:22:31 +0800934 struct iwl_station_entry stations[IWL_STATION_COUNT];
Emmanuel Grumbach6974e362008-04-14 21:16:06 -0700935 struct iwl_wep_key wep_keys[WEP_KEYS_MAX];
936 u8 default_wep_key;
937 u8 key_mapping_key;
Emmanuel Grumbach80fb47a2008-04-14 21:16:08 -0700938 unsigned long ucode_key_table;
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800939
940 /* Indication if ieee80211_ops->open has been called */
Tomas Winkler69dc5d92008-03-25 16:33:41 -0700941 u8 is_open;
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800942
943 u8 mac80211_registered;
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800944
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800945 /* Rx'd packet timing information */
946 u32 last_beacon_time;
947 u64 last_tsf;
948
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800949 /* eeprom */
Tomas Winkler073d3f52008-04-21 15:41:52 -0700950 u8 *eeprom;
951 struct iwl_eeprom_calib_info *calib_info;
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800952
Johannes Berg05c914f2008-09-11 00:01:58 +0200953 enum nl80211_iftype iw_mode;
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800954
955 struct sk_buff *ibss_beacon;
956
957 /* Last Rx'd beacon timestamp */
Tomas Winkler3109ece2008-03-28 16:33:35 -0700958 u64 timestamp;
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800959 u16 beacon_int;
Johannes Berg32bfd352007-12-19 01:31:26 +0100960 struct ieee80211_vif *vif;
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800961
Tomas Winkler5425e492008-04-15 16:01:38 -0700962 struct iwl_hw_params hw_params;
Tomas Winkler4ddbb7d2008-11-07 09:58:40 -0800963
Tomas Winkler059ff822008-04-14 21:16:14 -0700964
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800965 /* Current association information needed to configure the
966 * hardware */
967 u16 assoc_id;
968 u16 assoc_capability;
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800969
Emmanuel Grumbach1ff50bd2008-07-11 11:53:34 +0800970 struct iwl_qos_info qos_data;
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800971
972 struct workqueue_struct *workqueue;
973
974 struct work_struct up;
975 struct work_struct restart;
976 struct work_struct calibrated_work;
977 struct work_struct scan_completed;
978 struct work_struct rx_replenish;
979 struct work_struct rf_kill;
980 struct work_struct abort_scan;
981 struct work_struct update_link_led;
982 struct work_struct auth_work;
983 struct work_struct report_work;
984 struct work_struct request_scan;
985 struct work_struct beacon_update;
986
987 struct tasklet_struct irq_tasklet;
988
Emmanuel Grumbachc90a74ba2008-09-03 11:26:50 +0800989 struct delayed_work set_power_save;
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800990 struct delayed_work init_alive_start;
991 struct delayed_work alive_start;
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800992 struct delayed_work scan_check;
Tomas Winkler630fe9b2008-06-12 09:47:08 +0800993 /* TX Power */
994 s8 tx_power_user_lmt;
995 s8 tx_power_channel_lmt;
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800996
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800997
Tomas Winkler0a6857e2008-03-12 16:58:49 -0700998#ifdef CONFIG_IWLWIFI_DEBUG
Christoph Hellwig5d08cd12007-10-25 17:15:50 +0800999 /* debugging info */
Ester Kummerbf403db2008-05-05 10:22:40 +08001000 u32 debug_level;
Christoph Hellwig5d08cd12007-10-25 17:15:50 +08001001 u32 framecnt_to_us;
1002 atomic_t restrict_refcnt;
Tomas Winkler712b6cf2008-03-12 16:58:52 -07001003#ifdef CONFIG_IWLWIFI_DEBUGFS
1004 /* debugfs */
1005 struct iwl_debugfs *dbgfs;
1006#endif /* CONFIG_IWLWIFI_DEBUGFS */
1007#endif /* CONFIG_IWLWIFI_DEBUG */
Christoph Hellwig5d08cd12007-10-25 17:15:50 +08001008
1009 struct work_struct txpower_work;
Tomas Winkler445c2df2008-05-15 13:54:16 +08001010 u32 disable_sens_cal;
1011 u32 disable_chain_noise_cal;
Emmanuel Grumbach203566f2008-06-12 09:46:54 +08001012 u32 disable_tx_power_cal;
Emmanuel Grumbach16e727e2008-06-12 09:46:52 +08001013 struct work_struct run_time_calib_work;
Christoph Hellwig5d08cd12007-10-25 17:15:50 +08001014 struct timer_list statistics_periodic;
Tomas Winklerc79dd5b2008-03-12 16:58:50 -07001015}; /*iwl_priv */
Christoph Hellwig5d08cd12007-10-25 17:15:50 +08001016
Ron Rindjunsky36470742008-05-15 13:54:10 +08001017static inline void iwl_txq_ctx_activate(struct iwl_priv *priv, int txq_id)
1018{
1019 set_bit(txq_id, &priv->txq_ctx_active_msk);
1020}
1021
1022static inline void iwl_txq_ctx_deactivate(struct iwl_priv *priv, int txq_id)
1023{
1024 clear_bit(txq_id, &priv->txq_ctx_active_msk);
1025}
1026
Helmut Schaa994d31f2008-07-02 12:17:06 +02001027#ifdef CONFIG_IWLWIFI_DEBUG
Tomas Winklera332f8d62008-05-29 16:35:08 +08001028const char *iwl_get_tx_fail_reason(u32 status);
1029#else
1030static inline const char *iwl_get_tx_fail_reason(u32 status) { return ""; }
1031#endif
1032
1033
Tomas Winklera332f8d62008-05-29 16:35:08 +08001034static inline struct ieee80211_hdr *iwl_tx_queue_get_hdr(struct iwl_priv *priv,
1035 int txq_id, int idx)
1036{
1037 if (priv->txq[txq_id].txb[idx].skb[0])
1038 return (struct ieee80211_hdr *)priv->txq[txq_id].
1039 txb[idx].skb[0]->data;
1040 return NULL;
1041}
Tomas Winklera332f8d62008-05-29 16:35:08 +08001042
1043
Tomas Winkler3109ece2008-03-28 16:33:35 -07001044static inline int iwl_is_associated(struct iwl_priv *priv)
Christoph Hellwig5d08cd12007-10-25 17:15:50 +08001045{
1046 return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
1047}
1048
Assaf Kraussbf85ea42008-03-14 10:38:49 -07001049static inline int is_channel_valid(const struct iwl_channel_info *ch_info)
Christoph Hellwig5d08cd12007-10-25 17:15:50 +08001050{
1051 if (ch_info == NULL)
1052 return 0;
1053 return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
1054}
1055
Assaf Kraussbf85ea42008-03-14 10:38:49 -07001056static inline int is_channel_radar(const struct iwl_channel_info *ch_info)
Christoph Hellwig5d08cd12007-10-25 17:15:50 +08001057{
1058 return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
1059}
1060
Assaf Kraussbf85ea42008-03-14 10:38:49 -07001061static inline u8 is_channel_a_band(const struct iwl_channel_info *ch_info)
Christoph Hellwig5d08cd12007-10-25 17:15:50 +08001062{
Johannes Berg8318d782008-01-24 19:38:38 +01001063 return ch_info->band == IEEE80211_BAND_5GHZ;
Christoph Hellwig5d08cd12007-10-25 17:15:50 +08001064}
1065
Assaf Kraussbf85ea42008-03-14 10:38:49 -07001066static inline u8 is_channel_bg_band(const struct iwl_channel_info *ch_info)
Christoph Hellwig5d08cd12007-10-25 17:15:50 +08001067{
Johannes Berg8318d782008-01-24 19:38:38 +01001068 return ch_info->band == IEEE80211_BAND_2GHZ;
Christoph Hellwig5d08cd12007-10-25 17:15:50 +08001069}
1070
Assaf Kraussbf85ea42008-03-14 10:38:49 -07001071static inline int is_channel_passive(const struct iwl_channel_info *ch)
Christoph Hellwig5d08cd12007-10-25 17:15:50 +08001072{
1073 return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
1074}
1075
Assaf Kraussbf85ea42008-03-14 10:38:49 -07001076static inline int is_channel_ibss(const struct iwl_channel_info *ch)
Christoph Hellwig5d08cd12007-10-25 17:15:50 +08001077{
1078 return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
1079}
1080
Emmanuel Grumbachbe1f3ab62008-06-12 09:47:18 +08001081#endif /* __iwl_dev_h__ */