iwl-3945.h 28.3 KB
Newer Older
1
2
/******************************************************************************
 *
3
 * Copyright(c) 2003 - 2008 Intel Corporation. All rights reserved.
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of version 2 of the GNU General Public License as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
 *
 * The full GNU General Public License is included in this distribution in the
 * file called LICENSE.
 *
 * Contact Information:
22
 *  Intel Linux Wireless <ilw@linux.intel.com>
23
24
25
 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
 *
 *****************************************************************************/
26
27
28
29
30
/*
 * Please use this file (iwl-3945.h) for driver implementation definitions.
 * Please use iwl-3945-commands.h for uCode API definitions.
 * Please use iwl-3945-hw.h for hardware-related definitions.
 */
31
32
33
34

#ifndef __iwl_3945_h__
#define __iwl_3945_h__

35
36
37
38
#include <linux/pci.h> /* for struct pci_device_id */
#include <linux/kernel.h>
#include <net/ieee80211_radiotap.h>

39
40
41
42
/*used for rfkill*/
#include <linux/rfkill.h>
#include <linux/input.h>

43
/* Hardware specific file defines the PCI IDs table for that hardware module */
Christoph Hellwig's avatar
Christoph Hellwig committed
44
extern struct pci_device_id iwl3945_hw_card_ids[];
45

Tomas Winkler's avatar
Tomas Winkler committed
46
#include "iwl-csr.h"
47
#include "iwl-prph.h"
Tomas Winkler's avatar
Tomas Winkler committed
48
#include "iwl-3945-hw.h"
49
#include "iwl-debug.h"
Mohamed Abbas's avatar
Mohamed Abbas committed
50
#include "iwl-3945-led.h"
51

52
/* Highest firmware API version supported */
53
#define IWL3945_UCODE_API_MAX 2
54
55
56
57
58
59
60

/* Lowest firmware API version supported */
#define IWL3945_UCODE_API_MIN 1

#define IWL3945_FW_PRE	"iwlwifi-3945-"
#define _IWL3945_MODULE_FIRMWARE(api) IWL3945_FW_PRE #api ".ucode"
#define IWL3945_MODULE_FIRMWARE(api) _IWL3945_MODULE_FIRMWARE(api)
61

62
63
64
65
66
67
68
69
70
71
72
73
74
75
/* Default noise level to report when noise measurement is not available.
 *   This may be because we're:
 *   1)  Not associated (4965, no beacon statistics being sent to driver)
 *   2)  Scanning (noise measurement does not apply to associated channel)
 *   3)  Receiving CCK (3945 delivers noise info only for OFDM frames)
 * Use default noise value of -127 ... this is below the range of measurable
 *   Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
 *   Also, -127 works better than 0 when averaging frames with/without
 *   noise info (e.g. averaging might be done in app); measured dBm values are
 *   always negative ... using a negative value as the default keeps all
 *   averages within an s8's (used in some apps) range of negative values. */
#define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)

/* Module parameters accessible from iwl-*.c */
Christoph Hellwig's avatar
Christoph Hellwig committed
76
77
extern int iwl3945_param_hwcrypto;
extern int iwl3945_param_queues_num;
78

79
80
81
82
struct iwl3945_sta_priv {
	struct iwl3945_rs_sta *rs_sta;
};

Christoph Hellwig's avatar
Christoph Hellwig committed
83
enum iwl3945_antenna {
84
85
86
87
88
89
90
91
92
93
94
95
96
	IWL_ANTENNA_DIVERSITY,
	IWL_ANTENNA_MAIN,
	IWL_ANTENNA_AUX
};

/*
 * RTS threshold here is total size [2347] minus 4 FCS bytes
 * Per spec:
 *   a value of 0 means RTS on all data/management packets
 *   a value > max MSDU size means no RTS
 * else RTS for data/management frames where MPDU is larger
 *   than RTS value.
 */
97
#define IWL_RX_BUF_SIZE           3000U
98
99
100
101
102
103
104
105
106
#define DEFAULT_RTS_THRESHOLD     2347U
#define MIN_RTS_THRESHOLD         0U
#define MAX_RTS_THRESHOLD         2347U
#define MAX_MSDU_SIZE		  2304U
#define MAX_MPDU_SIZE		  2346U
#define DEFAULT_BEACON_INTERVAL   100U
#define	DEFAULT_SHORT_RETRY_LIMIT 7U
#define	DEFAULT_LONG_RETRY_LIMIT  4U

Christoph Hellwig's avatar
Christoph Hellwig committed
107
struct iwl3945_rx_mem_buffer {
108
109
110
111
112
113
114
115
116
117
	dma_addr_t dma_addr;
	struct sk_buff *skb;
	struct list_head list;
};

/*
 * Generic queue structure
 *
 * Contains common data for Rx and Tx queues
 */
Christoph Hellwig's avatar
Christoph Hellwig committed
118
struct iwl3945_queue {
119
120
121
122
123
124
125
126
127
128
129
130
	int n_bd;              /* number of BDs in this queue */
	int write_ptr;       /* 1-st empty entry (index) host_w*/
	int read_ptr;         /* last used entry (index) host_r*/
	dma_addr_t dma_addr;   /* physical addr for BD's */
	int n_window;	       /* safe queue window */
	u32 id;
	int low_mark;	       /* low watermark, resume queue if free
				* space more than this */
	int high_mark;         /* high watermark, stop queue if free
				* space less than this */
} __attribute__ ((packed));

131
132
133
int iwl3945_queue_space(const struct iwl3945_queue *q);
int iwl3945_x2_queue_used(const struct iwl3945_queue *q, int i);

134
135
#define MAX_NUM_OF_TBS          (20)

136
/* One for each TFD */
Christoph Hellwig's avatar
Christoph Hellwig committed
137
struct iwl3945_tx_info {
138
139
140
141
	struct sk_buff *skb[MAX_NUM_OF_TBS];
};

/**
Christoph Hellwig's avatar
Christoph Hellwig committed
142
 * struct iwl3945_tx_queue - Tx Queue for DMA
143
144
145
146
147
148
 * @q: generic Rx/Tx queue descriptor
 * @bd: base of circular buffer of TFDs
 * @cmd: array of command/Tx buffers
 * @dma_addr_cmd: physical address of cmd/tx buffer array
 * @txb: array of per-TFD driver data
 * @need_update: indicates need to update read/write index
149
 *
150
151
 * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
 * descriptors) and required locking structures.
152
 */
Christoph Hellwig's avatar
Christoph Hellwig committed
153
154
155
156
struct iwl3945_tx_queue {
	struct iwl3945_queue q;
	struct iwl3945_tfd_frame *bd;
	struct iwl3945_cmd *cmd;
157
	dma_addr_t dma_addr_cmd;
Christoph Hellwig's avatar
Christoph Hellwig committed
158
	struct iwl3945_tx_info *txb;
159
160
161
162
163
164
	int need_update;
	int active;
};

#define IWL_NUM_SCAN_RATES         (2)

Christoph Hellwig's avatar
Christoph Hellwig committed
165
struct iwl3945_channel_tgd_info {
166
167
168
169
	u8 type;
	s8 max_power;
};

Christoph Hellwig's avatar
Christoph Hellwig committed
170
struct iwl3945_channel_tgh_info {
171
172
173
174
175
176
177
178
179
180
	s64 last_radar_time;
};

/* current Tx power values to use, one for each rate for each channel.
 * requested power is limited by:
 * -- regulatory EEPROM limits for this channel
 * -- hardware capabilities (clip-powers)
 * -- spectrum management
 * -- user preference (e.g. iwconfig)
 * when requested power is set, base power index must also be set. */
Christoph Hellwig's avatar
Christoph Hellwig committed
181
182
struct iwl3945_channel_power_info {
	struct iwl3945_tx_power tpc;	/* actual radio and DSP gain settings */
183
184
185
186
187
188
189
	s8 power_table_index;	/* actual (compenst'd) index into gain table */
	s8 base_power_index;	/* gain index for power at factory temp. */
	s8 requested_power;	/* power (dBm) requested for this chnl/rate */
};

/* current scan Tx power values to use, one for each scan rate for each
 * channel. */
Christoph Hellwig's avatar
Christoph Hellwig committed
190
191
struct iwl3945_scan_power_info {
	struct iwl3945_tx_power tpc;	/* actual radio and DSP gain settings */
192
193
194
195
196
197
198
199
200
201
202
	s8 power_table_index;	/* actual (compenst'd) index into gain table */
	s8 requested_power;	/* scan pwr (dBm) requested for chnl/rate */
};

/*
 * One for each channel, holds all channel setup data
 * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
 *     with one another!
 */
#define IWL4965_MAX_RATE (33)

Christoph Hellwig's avatar
Christoph Hellwig committed
203
204
205
struct iwl3945_channel_info {
	struct iwl3945_channel_tgd_info tgd;
	struct iwl3945_channel_tgh_info tgh;
206
207
	struct iwl_eeprom_channel eeprom;	/* EEPROM regulatory limit */
	struct iwl_eeprom_channel fat_eeprom;	/* EEPROM regulatory limit for
208
209
210
211
212
213
214
215
216
217
218
						 * FAT channel */

	u8 channel;	  /* channel number */
	u8 flags;	  /* flags copied from EEPROM */
	s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
	s8 curr_txpow;	  /* (dBm) regulatory/spectrum/user (not h/w) */
	s8 min_power;	  /* always 0 */
	s8 scan_power;	  /* (dBm) regul. eeprom, direct scans, any rate */

	u8 group_index;	  /* 0-4, maps channel to group1/2/3/4/5 */
	u8 band_index;	  /* 0-4, maps channel to band1/2/3/4/5 */
219
	enum ieee80211_band band;
220
221
222
223

	/* Radio/DSP gain settings for each "normal" data Tx rate.
	 * These include, in addition to RF and DSP gain, a few fields for
	 *   remembering/modifying gain settings (indexes). */
Christoph Hellwig's avatar
Christoph Hellwig committed
224
	struct iwl3945_channel_power_info power_info[IWL4965_MAX_RATE];
225
226

	/* Radio/DSP gain settings for each scan rate, for directed scans. */
Christoph Hellwig's avatar
Christoph Hellwig committed
227
	struct iwl3945_scan_power_info scan_pwr_info[IWL_NUM_SCAN_RATES];
228
229
};

Christoph Hellwig's avatar
Christoph Hellwig committed
230
struct iwl3945_clip_group {
231
232
233
234
235
	/* maximum power level to prevent clipping for each rate, derived by
	 *   us from this band's saturation power in EEPROM */
	const s8 clip_powers[IWL_MAX_RATES];
};

236
#include "iwl-agn-rs.h"
237
238
239
240
241
242
243
244
245
246
247
248
249
250

#define IWL_TX_FIFO_AC0	0
#define IWL_TX_FIFO_AC1	1
#define IWL_TX_FIFO_AC2	2
#define IWL_TX_FIFO_AC3	3
#define IWL_TX_FIFO_HCCA_1	5
#define IWL_TX_FIFO_HCCA_2	6
#define IWL_TX_FIFO_NONE	7

/* Minimum number of queues. MAX_NUM is defined in hw specific files */
#define IWL_MIN_NUM_QUEUES	4

/* Power management (not Tx power) structures */

Christoph Hellwig's avatar
Christoph Hellwig committed
251
struct iwl3945_power_vec_entry {
252
	struct iwl_powertable_cmd cmd;
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
	u8 no_dtim;
};
#define IWL_POWER_RANGE_0  (0)
#define IWL_POWER_RANGE_1  (1)

#define IWL_POWER_MODE_CAM	0x00	/* Continuously Aware Mode, always on */
#define IWL_POWER_INDEX_3	0x03
#define IWL_POWER_INDEX_5	0x05
#define IWL_POWER_AC		0x06
#define IWL_POWER_BATTERY	0x07
#define IWL_POWER_LIMIT		0x07
#define IWL_POWER_MASK		0x0F
#define IWL_POWER_ENABLED	0x10
#define IWL_POWER_LEVEL(x)	((x) & IWL_POWER_MASK)

Christoph Hellwig's avatar
Christoph Hellwig committed
268
struct iwl3945_power_mgr {
269
	spinlock_t lock;
Christoph Hellwig's avatar
Christoph Hellwig committed
270
271
	struct iwl3945_power_vec_entry pwr_range_0[IWL_POWER_AC];
	struct iwl3945_power_vec_entry pwr_range_1[IWL_POWER_AC];
272
273
274
275
276
277
278
279
280
	u8 active_index;
	u32 dtim_val;
};

#define IEEE80211_DATA_LEN              2304
#define IEEE80211_4ADDR_LEN             30
#define IEEE80211_HLEN                  (IEEE80211_4ADDR_LEN)
#define IEEE80211_FRAME_LEN             (IEEE80211_DATA_LEN + IEEE80211_HLEN)

Christoph Hellwig's avatar
Christoph Hellwig committed
281
struct iwl3945_frame {
282
283
	union {
		struct ieee80211_hdr frame;
Christoph Hellwig's avatar
Christoph Hellwig committed
284
		struct iwl3945_tx_beacon_cmd beacon;
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
		u8 raw[IEEE80211_FRAME_LEN];
		u8 cmd[360];
	} u;
	struct list_head list;
};

#define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
#define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
#define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)

enum {
	/* CMD_SIZE_NORMAL = 0, */
	CMD_SIZE_HUGE = (1 << 0),
	/* CMD_SYNC = 0, */
	CMD_ASYNC = (1 << 1),
	/* CMD_NO_SKB = 0, */
	CMD_WANT_SKB = (1 << 2),
};

Christoph Hellwig's avatar
Christoph Hellwig committed
304
305
struct iwl3945_cmd;
struct iwl3945_priv;
306

Christoph Hellwig's avatar
Christoph Hellwig committed
307
308
struct iwl3945_cmd_meta {
	struct iwl3945_cmd_meta *source;
309
310
	union {
		struct sk_buff *skb;
Christoph Hellwig's avatar
Christoph Hellwig committed
311
312
		int (*callback)(struct iwl3945_priv *priv,
				struct iwl3945_cmd *cmd, struct sk_buff *skb);
313
314
315
316
317
318
319
320
	} __attribute__ ((packed)) u;

	/* The CMD_SIZE_HUGE flag bit indicates that the command
	 * structure is stored at the end of the shared queue memory. */
	u32 flags;

} __attribute__ ((packed));

321
322
323
324
325
326
327
/**
 * struct iwl3945_cmd
 *
 * For allocation of the command and tx queues, this establishes the overall
 * size of the largest command we send to uCode, except for a scan command
 * (which is relatively huge; space is allocated separately).
 */
Christoph Hellwig's avatar
Christoph Hellwig committed
328
329
struct iwl3945_cmd {
	struct iwl3945_cmd_meta meta;
330
	struct iwl_cmd_header hdr;
331
	union {
Christoph Hellwig's avatar
Christoph Hellwig committed
332
		struct iwl3945_addsta_cmd addsta;
333
		struct iwl_led_cmd led;
334
335
336
337
		u32 flags;
		u8 val8;
		u16 val16;
		u32 val32;
338
		struct iwl_bt_cmd bt;
339
		struct iwl_rxon_time_cmd rxon_time;
340
		struct iwl_powertable_cmd powertable;
341
		struct iwl_qosparam_cmd qosparam;
Christoph Hellwig's avatar
Christoph Hellwig committed
342
343
344
		struct iwl3945_tx_cmd tx;
		struct iwl3945_tx_beacon_cmd tx_beacon;
		struct iwl3945_rxon_assoc_cmd rxon_assoc;
345
346
347
348
349
		u8 *indirect;
		u8 payload[360];
	} __attribute__ ((packed)) cmd;
} __attribute__ ((packed));

Christoph Hellwig's avatar
Christoph Hellwig committed
350
struct iwl3945_host_cmd {
351
352
	u8 id;
	u16 len;
Christoph Hellwig's avatar
Christoph Hellwig committed
353
	struct iwl3945_cmd_meta meta;
354
355
356
	const void *data;
};

Christoph Hellwig's avatar
Christoph Hellwig committed
357
358
#define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl3945_cmd) - \
			      sizeof(struct iwl3945_cmd_meta))
359
360
361
362
363
364
365
366
367
368
369
370

/*
 * RX related structures and functions
 */
#define RX_FREE_BUFFERS 64
#define RX_LOW_WATERMARK 8

#define SUP_RATE_11A_MAX_NUM_CHANNELS  8
#define SUP_RATE_11B_MAX_NUM_CHANNELS  4
#define SUP_RATE_11G_MAX_NUM_CHANNELS  12

/**
Christoph Hellwig's avatar
Christoph Hellwig committed
371
 * struct iwl3945_rx_queue - Rx queue
372
373
374
375
376
377
378
379
 * @processed: Internal index to last handled Rx packet
 * @read: Shared index to newest available Rx buffer
 * @write: Shared index to oldest written Rx packet
 * @free_count: Number of pre-allocated buffers in rx_free
 * @rx_free: list of free SKBs for use
 * @rx_used: List of Rx buffers with no SKB
 * @need_update: flag to indicate we need to update read/write index
 *
Christoph Hellwig's avatar
Christoph Hellwig committed
380
 * NOTE:  rx_free and rx_used are used as a FIFO for iwl3945_rx_mem_buffers
381
 */
Christoph Hellwig's avatar
Christoph Hellwig committed
382
struct iwl3945_rx_queue {
383
384
	__le32 *bd;
	dma_addr_t dma_addr;
Christoph Hellwig's avatar
Christoph Hellwig committed
385
386
	struct iwl3945_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
	struct iwl3945_rx_mem_buffer *queue[RX_QUEUE_SIZE];
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
	u32 processed;
	u32 read;
	u32 write;
	u32 free_count;
	struct list_head rx_free;
	struct list_head rx_used;
	int need_update;
	spinlock_t lock;
};

#define IWL_SUPPORTED_RATES_IE_LEN         8

#define SCAN_INTERVAL 100

#define STATUS_HCMD_ACTIVE	0	/* host command in progress */
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
#define STATUS_HCMD_SYNC_ACTIVE	1	/* sync host command in progress */
#define STATUS_INT_ENABLED	2
#define STATUS_RF_KILL_HW	3
#define STATUS_RF_KILL_SW	4
#define STATUS_INIT		5
#define STATUS_ALIVE		6
#define STATUS_READY		7
#define STATUS_TEMPERATURE	8
#define STATUS_GEO_CONFIGURED	9
#define STATUS_EXIT_PENDING	10
#define STATUS_IN_SUSPEND	11
#define STATUS_STATISTICS	12
#define STATUS_SCANNING		13
#define STATUS_SCAN_ABORTING	14
#define STATUS_SCAN_HW		15
#define STATUS_POWER_PMI	16
#define STATUS_FW_ERROR		17
#define STATUS_CONF_PENDING	18
420
421
422
423
424
425

#define MAX_TID_COUNT        9

#define IWL_INVALID_RATE     0xFF
#define IWL_INVALID_VALUE    -1

Christoph Hellwig's avatar
Christoph Hellwig committed
426
struct iwl3945_tid_data {
427
428
429
	u16 seq_number;
};

Christoph Hellwig's avatar
Christoph Hellwig committed
430
struct iwl3945_hw_key {
431
432
433
434
435
	enum ieee80211_key_alg alg;
	int keylen;
	u8 key[32];
};

Christoph Hellwig's avatar
Christoph Hellwig committed
436
union iwl3945_ht_rate_supp {
437
438
439
440
441
442
443
	u16 rates;
	struct {
		u8 siso_rate;
		u8 mimo_rate;
	};
};

Christoph Hellwig's avatar
Christoph Hellwig committed
444
union iwl3945_qos_capabity {
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
	struct {
		u8 edca_count:4;	/* bit 0-3 */
		u8 q_ack:1;		/* bit 4 */
		u8 queue_request:1;	/* bit 5 */
		u8 txop_request:1;	/* bit 6 */
		u8 reserved:1;		/* bit 7 */
	} q_AP;
	struct {
		u8 acvo_APSD:1;		/* bit 0 */
		u8 acvi_APSD:1;		/* bit 1 */
		u8 ac_bk_APSD:1;	/* bit 2 */
		u8 ac_be_APSD:1;	/* bit 3 */
		u8 q_ack:1;		/* bit 4 */
		u8 max_len:2;		/* bit 5-6 */
		u8 more_data_ack:1;	/* bit 7 */
	} q_STA;
	u8 val;
};

/* QoS structures */
Christoph Hellwig's avatar
Christoph Hellwig committed
465
struct iwl3945_qos_info {
466
	int qos_active;
Christoph Hellwig's avatar
Christoph Hellwig committed
467
	union iwl3945_qos_capabity qos_cap;
468
	struct iwl_qosparam_cmd def_qos_parm;
469
470
471
472
473
};

#define STA_PS_STATUS_WAKE             0
#define STA_PS_STATUS_SLEEP            1

Christoph Hellwig's avatar
Christoph Hellwig committed
474
475
476
struct iwl3945_station_entry {
	struct iwl3945_addsta_cmd sta;
	struct iwl3945_tid_data tid[MAX_TID_COUNT];
477
478
	u8 used;
	u8 ps_status;
Christoph Hellwig's avatar
Christoph Hellwig committed
479
	struct iwl3945_hw_key keyinfo;
480
481
482
483
484
485
486
487
488
489
};

/* one for each uCode image (inst/data, boot/init/runtime) */
struct fw_desc {
	void *v_addr;		/* access by driver */
	dma_addr_t p_addr;	/* access by card's busmaster DMA */
	u32 len;		/* bytes */
};

/* uCode file layout */
Christoph Hellwig's avatar
Christoph Hellwig committed
490
struct iwl3945_ucode {
491
	__le32 ver;		/* major/minor/API/serial */
492
493
494
495
496
497
498
499
	__le32 inst_size;	/* bytes of runtime instructions */
	__le32 data_size;	/* bytes of runtime data */
	__le32 init_size;	/* bytes of initialization instructions */
	__le32 init_data_size;	/* bytes of initialization data */
	__le32 boot_size;	/* bytes of bootstrap instructions */
	u8 data[0];		/* data in same order as "size" elements */
};

Christoph Hellwig's avatar
Christoph Hellwig committed
500
struct iwl3945_ibss_seq {
501
502
503
504
505
506
507
	u8 mac[ETH_ALEN];
	u16 seq_num;
	u16 frag_num;
	unsigned long packet_time;
	struct list_head list;
};

508
/**
Zhu Yi's avatar
Zhu Yi committed
509
 * struct iwl3945_driver_hw_info
510
511
 * @max_txq_num: Max # Tx queues supported
 * @tx_cmd_len: Size of Tx command (but not including frame itself)
512
 * @tx_ant_num: Number of TX antennas
513
 * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
514
515
 * @rx_buf_size:
 * @max_pkt_size:
516
517
518
519
520
521
 * @max_rxq_log: Log-base-2 of max_rxq_size
 * @max_stations:
 * @bcast_sta_id:
 * @shared_virt: Pointer to driver/uCode shared Tx Byte Counts and Rx status
 * @shared_phys: Physical Pointer to Tx Byte Counts and Rx status
 */
Christoph Hellwig's avatar
Christoph Hellwig committed
522
struct iwl3945_driver_hw_info {
523
524
	u16 max_txq_num;
	u16 tx_cmd_len;
525
	u16 tx_ant_num;
526
	u16 max_rxq_size;
527
528
	u32 rx_buf_size;
	u32 max_pkt_size;
529
530
531
532
533
534
535
	u16 max_rxq_log;
	u8  max_stations;
	u8  bcast_sta_id;
	void *shared_virt;
	dma_addr_t shared_phys;
};

Christoph Hellwig's avatar
Christoph Hellwig committed
536
#define IWL_RX_HDR(x) ((struct iwl3945_rx_frame_hdr *)(\
537
538
		       x->u.rx_frame.stats.payload + \
		       x->u.rx_frame.stats.phy_count))
Christoph Hellwig's avatar
Christoph Hellwig committed
539
#define IWL_RX_END(x) ((struct iwl3945_rx_frame_end *)(\
540
541
542
543
544
545
546
547
548
549
550
551
		       IWL_RX_HDR(x)->payload + \
		       le16_to_cpu(IWL_RX_HDR(x)->len)))
#define IWL_RX_STATS(x) (&x->u.rx_frame.stats)
#define IWL_RX_DATA(x) (IWL_RX_HDR(x)->payload)


/******************************************************************************
 *
 * Functions implemented in iwl-base.c which are forward declared here
 * for use by iwl-*.c
 *
 *****************************************************************************/
Christoph Hellwig's avatar
Christoph Hellwig committed
552
553
554
555
struct iwl3945_addsta_cmd;
extern int iwl3945_send_add_station(struct iwl3945_priv *priv,
				struct iwl3945_addsta_cmd *sta, u8 flags);
extern u8 iwl3945_add_station(struct iwl3945_priv *priv, const u8 *bssid,
556
			  int is_ap, u8 flags);
Christoph Hellwig's avatar
Christoph Hellwig committed
557
558
559
560
561
562
563
564
565
566
567
568
extern int iwl3945_power_init_handle(struct iwl3945_priv *priv);
extern int iwl3945_eeprom_init(struct iwl3945_priv *priv);
extern int iwl3945_rx_queue_alloc(struct iwl3945_priv *priv);
extern void iwl3945_rx_queue_reset(struct iwl3945_priv *priv,
			       struct iwl3945_rx_queue *rxq);
extern int iwl3945_calc_db_from_ratio(int sig_ratio);
extern int iwl3945_calc_sig_qual(int rssi_dbm, int noise_dbm);
extern int iwl3945_tx_queue_init(struct iwl3945_priv *priv,
			     struct iwl3945_tx_queue *txq, int count, u32 id);
extern void iwl3945_rx_replenish(void *data);
extern void iwl3945_tx_queue_free(struct iwl3945_priv *priv, struct iwl3945_tx_queue *txq);
extern int iwl3945_send_cmd_pdu(struct iwl3945_priv *priv, u8 id, u16 len,
569
			    const void *data);
Christoph Hellwig's avatar
Christoph Hellwig committed
570
571
572
extern int __must_check iwl3945_send_cmd(struct iwl3945_priv *priv,
		struct iwl3945_host_cmd *cmd);
extern unsigned int iwl3945_fill_beacon_frame(struct iwl3945_priv *priv,
573
					struct ieee80211_hdr *hdr,int left);
Christoph Hellwig's avatar
Christoph Hellwig committed
574
575
576
577
extern int iwl3945_rx_queue_update_write_ptr(struct iwl3945_priv *priv,
					 struct iwl3945_rx_queue *q);
extern int iwl3945_send_statistics_request(struct iwl3945_priv *priv);
extern void iwl3945_set_decrypted_flag(struct iwl3945_priv *priv, struct sk_buff *skb,
578
579
				   u32 decrypt_res,
				   struct ieee80211_rx_status *stats);
Christoph Hellwig's avatar
Christoph Hellwig committed
580
extern const u8 iwl3945_broadcast_addr[ETH_ALEN];
581
582
583
584
585

/*
 * Currently used by iwl-3945-rs... look at restructuring so that it doesn't
 * call this... todo... fix that.
*/
Christoph Hellwig's avatar
Christoph Hellwig committed
586
extern u8 iwl3945_sync_station(struct iwl3945_priv *priv, int sta_id,
587
588
589
590
591
592
593
594
595
596
597
			   u16 tx_rate, u8 flags);

/******************************************************************************
 *
 * Functions implemented in iwl-[34]*.c which are forward declared here
 * for use by iwl-base.c
 *
 * NOTE:  The implementation of these functions are hardware specific
 * which is why they are in the hardware specific files (vs. iwl-base.c)
 *
 * Naming convention --
Christoph Hellwig's avatar
Christoph Hellwig committed
598
599
 * iwl3945_         <-- Its part of iwlwifi (should be changed to iwl3945_)
 * iwl3945_hw_      <-- Hardware specific (implemented in iwl-XXXX.c by all HW)
600
 * iwlXXXX_     <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
Christoph Hellwig's avatar
Christoph Hellwig committed
601
602
 * iwl3945_bg_      <-- Called from work queue context
 * iwl3945_mac_     <-- mac80211 callback
603
604
 *
 ****************************************************************************/
Christoph Hellwig's avatar
Christoph Hellwig committed
605
606
607
608
609
610
611
612
613
614
615
extern void iwl3945_hw_rx_handler_setup(struct iwl3945_priv *priv);
extern void iwl3945_hw_setup_deferred_work(struct iwl3945_priv *priv);
extern void iwl3945_hw_cancel_deferred_work(struct iwl3945_priv *priv);
extern int iwl3945_hw_rxq_stop(struct iwl3945_priv *priv);
extern int iwl3945_hw_set_hw_setting(struct iwl3945_priv *priv);
extern int iwl3945_hw_nic_init(struct iwl3945_priv *priv);
extern int iwl3945_hw_nic_stop_master(struct iwl3945_priv *priv);
extern void iwl3945_hw_txq_ctx_free(struct iwl3945_priv *priv);
extern void iwl3945_hw_txq_ctx_stop(struct iwl3945_priv *priv);
extern int iwl3945_hw_nic_reset(struct iwl3945_priv *priv);
extern int iwl3945_hw_txq_attach_buf_to_tfd(struct iwl3945_priv *priv, void *tfd,
616
					dma_addr_t addr, u16 len);
Christoph Hellwig's avatar
Christoph Hellwig committed
617
618
619
620
621
622
623
624
625
extern int iwl3945_hw_txq_free_tfd(struct iwl3945_priv *priv, struct iwl3945_tx_queue *txq);
extern int iwl3945_hw_get_temperature(struct iwl3945_priv *priv);
extern int iwl3945_hw_tx_queue_init(struct iwl3945_priv *priv,
				struct iwl3945_tx_queue *txq);
extern unsigned int iwl3945_hw_get_beacon_cmd(struct iwl3945_priv *priv,
				 struct iwl3945_frame *frame, u8 rate);
extern int iwl3945_hw_get_rx_read(struct iwl3945_priv *priv);
extern void iwl3945_hw_build_tx_cmd_rate(struct iwl3945_priv *priv,
				     struct iwl3945_cmd *cmd,
626
				     struct ieee80211_tx_info *info,
627
628
				     struct ieee80211_hdr *hdr,
				     int sta_id, int tx_id);
Christoph Hellwig's avatar
Christoph Hellwig committed
629
630
631
632
633
634
extern int iwl3945_hw_reg_send_txpower(struct iwl3945_priv *priv);
extern int iwl3945_hw_reg_set_txpower(struct iwl3945_priv *priv, s8 power);
extern void iwl3945_hw_rx_statistics(struct iwl3945_priv *priv,
				 struct iwl3945_rx_mem_buffer *rxb);
extern void iwl3945_disable_events(struct iwl3945_priv *priv);
extern int iwl4965_get_temperature(const struct iwl3945_priv *priv);
635
636

/**
Christoph Hellwig's avatar
Christoph Hellwig committed
637
 * iwl3945_hw_find_station - Find station id for a given BSSID
638
639
640
641
642
643
 * @bssid: MAC address of station ID to find
 *
 * NOTE:  This should not be hardware specific but the code has
 * not yet been merged into a single common layer for managing the
 * station tables.
 */
Christoph Hellwig's avatar
Christoph Hellwig committed
644
extern u8 iwl3945_hw_find_station(struct iwl3945_priv *priv, const u8 *bssid);
645

Christoph Hellwig's avatar
Christoph Hellwig committed
646
extern int iwl3945_hw_channel_switch(struct iwl3945_priv *priv, u16 channel);
647

648
649
650
/*
 * Forward declare iwl-3945.c functions for iwl-base.c
 */
Christoph Hellwig's avatar
Christoph Hellwig committed
651
652
653
654
655
extern __le32 iwl3945_get_antenna_flags(const struct iwl3945_priv *priv);
extern int iwl3945_init_hw_rate_table(struct iwl3945_priv *priv);
extern void iwl3945_reg_txpower_periodic(struct iwl3945_priv *priv);
extern int iwl3945_txpower_set_from_eeprom(struct iwl3945_priv *priv);
extern u8 iwl3945_sync_sta(struct iwl3945_priv *priv, int sta_id,
656
		 u16 tx_rate, u8 flags);
657
658


659
#ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
660
661
662
663
664
665
666
667

enum {
	MEASUREMENT_READY = (1 << 0),
	MEASUREMENT_ACTIVE = (1 << 1),
};

#endif

668
#ifdef CONFIG_IWL3945_RFKILL
669
670
671
672
673
674
675
676
677
678
679
struct iwl3945_priv;

void iwl3945_rfkill_set_hw_state(struct iwl3945_priv *priv);
void iwl3945_rfkill_unregister(struct iwl3945_priv *priv);
int iwl3945_rfkill_init(struct iwl3945_priv *priv);
#else
static inline void iwl3945_rfkill_set_hw_state(struct iwl3945_priv *priv) {}
static inline void iwl3945_rfkill_unregister(struct iwl3945_priv *priv) {}
static inline int iwl3945_rfkill_init(struct iwl3945_priv *priv) { return 0; }
#endif

680

Christoph Hellwig's avatar
Christoph Hellwig committed
681
struct iwl3945_priv {
682
683
684
685
686

	/* ieee device used by generic ieee processing code */
	struct ieee80211_hw *hw;
	struct ieee80211_channel *ieee_channels;
	struct ieee80211_rate *ieee_rates;
Tomas Winkler's avatar
Tomas Winkler committed
687
	struct iwl_3945_cfg *cfg; /* device configuration */
688
689
690
691
692

	/* temporary frame storage list */
	struct list_head free_frames;
	int frames_count;

693
	enum ieee80211_band band;
694
695
	int alloc_rxb_skb;

Christoph Hellwig's avatar
Christoph Hellwig committed
696
697
	void (*rx_handlers[REPLY_MAX])(struct iwl3945_priv *priv,
				       struct iwl3945_rx_mem_buffer *rxb);
698

699
	struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
700

701
#ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
702
	/* spectrum measurement report caching */
703
	struct iwl_spectrum_notification measure_report;
704
705
706
707
708
	u8 measurement_status;
#endif
	/* ucode beacon time */
	u32 ucode_beacon_time;

Christoph Hellwig's avatar
Christoph Hellwig committed
709
	/* we allocate array of iwl3945_channel_info for NIC's valid channels.
710
	 *    Access via channel # using indirect index array */
Christoph Hellwig's avatar
Christoph Hellwig committed
711
	struct iwl3945_channel_info *channel_info;	/* channel info array */
712
713
714
715
	u8 channel_count;	/* # of channels */

	/* each calibration channel group in the EEPROM has a derived
	 * clip setting for each rate. */
Christoph Hellwig's avatar
Christoph Hellwig committed
716
	const struct iwl3945_clip_group clip_groups[5];
717
718
719
720
721
722
723

	/* thermal calibration */
	s32 temperature;	/* degrees Kelvin */
	s32 last_temperature;

	/* Scan related variables */
	unsigned long last_scan_jiffies;
724
	unsigned long next_scan_jiffies;
725
726
727
728
729
730
731
	unsigned long scan_start;
	unsigned long scan_pass_start;
	unsigned long scan_start_tsf;
	int scan_bands;
	int one_direct_scan;
	u8 direct_ssid_len;
	u8 direct_ssid[IW_ESSID_MAX_SIZE];
Christoph Hellwig's avatar
Christoph Hellwig committed
732
	struct iwl3945_scan_cmd *scan;
733
734
735
736
737
738
739
740
741
742
743
744
745

	/* spinlock */
	spinlock_t lock;	/* protect general shared data */
	spinlock_t hcmd_lock;	/* protect hcmd */
	struct mutex mutex;

	/* basic pci-network driver stuff */
	struct pci_dev *pci_dev;

	/* pci hardware address support */
	void __iomem *hw_base;

	/* uCode images, save to reload in case of failure */
746
747
	u32 ucode_ver;			/* ucode version, copy of
					   iwl3945_ucode.ver */
748
749
750
751
752
753
754
755
	struct fw_desc ucode_code;	/* runtime inst */
	struct fw_desc ucode_data;	/* runtime data original */
	struct fw_desc ucode_data_backup;	/* runtime data save/restore */
	struct fw_desc ucode_init;	/* initialization inst */
	struct fw_desc ucode_init_data;	/* initialization data */
	struct fw_desc ucode_boot;	/* bootstrap inst */


756
	struct iwl_rxon_time_cmd rxon_timing;
757
758
759
760
761

	/* We declare this const so it can only be
	 * changed via explicit cast within the
	 * routines that actually update the physical
	 * hardware */
Christoph Hellwig's avatar
Christoph Hellwig committed
762
763
	const struct iwl3945_rxon_cmd active_rxon;
	struct iwl3945_rxon_cmd staging_rxon;
764
765

	int error_recovering;
Christoph Hellwig's avatar
Christoph Hellwig committed
766
	struct iwl3945_rxon_cmd recovery_rxon;
767
768
769

	/* 1st responses from initialize and runtime uCode images.
	 * 4965's initialize alive response contains some calibration data. */
770
771
772
	/* FIXME: 4965 uses bigger structure for init */
	struct iwl_alive_resp card_alive_init;
	struct iwl_alive_resp card_alive;
773

774
775
#ifdef CONFIG_IWL3945_RFKILL
	struct rfkill *rfkill;
776
777
#endif

778
#ifdef CONFIG_IWL3945_LEDS
Mohamed Abbas's avatar
Mohamed Abbas committed
779
780
781
782
783
	struct iwl3945_led led[IWL_LED_TRG_MAX];
	unsigned long last_blink_time;
	u8 last_blink_rate;
	u8 allow_blinking;
	unsigned int rxtxpackets;
Abhijeet Kolekar's avatar
Abhijeet Kolekar committed
784
	u64 led_tpt;
785
786
#endif

Mohamed Abbas's avatar
Mohamed Abbas committed
787

788
789
790
	u16 active_rate;
	u16 active_rate_basic;

791
792
	u32 sta_supp_rates;

793
794
795
796
797
798
799
800
801
802
	u8 call_post_assoc_from_beacon;
	/* Rate scaling data */
	s8 data_retry_limit;
	u8 retry_rate;

	wait_queue_head_t wait_command_queue;

	int activity_timer_active;

	/* Rx and Tx DMA processing queues */
Christoph Hellwig's avatar
Christoph Hellwig committed
803
	struct iwl3945_rx_queue rxq;
804
	struct iwl3945_tx_queue txq[IWL39_MAX_NUM_QUEUES];
805
806
807
808
809
810

	unsigned long status;

	int last_rx_rssi;	/* From Rx packet statisitics */
	int last_rx_noise;	/* From beacon statistics */

Christoph Hellwig's avatar
Christoph Hellwig committed
811
	struct iwl3945_power_mgr power_data;
812

Christoph Hellwig's avatar
Christoph Hellwig committed
813
	struct iwl3945_notif_statistics statistics;
814
815
816
817
818
819
820
821
822
823
824
825
826
827
	unsigned long last_statistics_time;

	/* context information */
	u16 rates_mask;

	u32 power_mode;
	u32 antenna;
	u8 bssid[ETH_ALEN];
	u16 rts_threshold;
	u8 mac_addr[ETH_ALEN];

	/*station table variables */
	spinlock_t sta_lock;
	int num_stations;
Christoph Hellwig's avatar
Christoph Hellwig committed
828
	struct iwl3945_station_entry stations[IWL_STATION_COUNT];
829
830

	/* Indication if ieee80211_ops->open has been called */
831
	u8 is_open;
832
833
834
835
836
837
838
839

	u8 mac80211_registered;

	/* Rx'd packet timing information */
	u32 last_beacon_time;
	u64 last_tsf;

	/* eeprom */
Christoph Hellwig's avatar
Christoph Hellwig committed
840
	struct iwl3945_eeprom eeprom;
841

842
	enum nl80211_iftype iw_mode;
843
844
845
846

	struct sk_buff *ibss_beacon;

	/* Last Rx'd beacon timestamp */
847
	u64 timestamp;
848
	u16 beacon_int;
Christoph Hellwig's avatar
Christoph Hellwig committed
849
	struct iwl3945_driver_hw_info hw_setting;
850
	struct ieee80211_vif *vif;
851
852
853
854
855
856
857

	/* Current association information needed to configure the
	 * hardware */
	u16 assoc_id;
	u16 assoc_capability;
	u8 ps_mode;

Christoph Hellwig's avatar
Christoph Hellwig committed
858
	struct iwl3945_qos_info qos_data;
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888

	struct workqueue_struct *workqueue;

	struct work_struct up;
	struct work_struct restart;
	struct work_struct calibrated_work;
	struct work_struct scan_completed;
	struct work_struct rx_replenish;
	struct work_struct rf_kill;
	struct work_struct abort_scan;
	struct work_struct update_link_led;
	struct work_struct auth_work;
	struct work_struct report_work;
	struct work_struct request_scan;
	struct work_struct beacon_update;

	struct tasklet_struct irq_tasklet;

	struct delayed_work init_alive_start;
	struct delayed_work alive_start;
	struct delayed_work activity_timer;
	struct delayed_work thermal_periodic;
	struct delayed_work gather_stats;
	struct delayed_work scan_check;

#define IWL_DEFAULT_TX_POWER 0x0F
	s8 user_txpower_limit;
	s8 max_channel_txpower_limit;


889
#ifdef CONFIG_IWL3945_DEBUG
890
	/* debugging info */
891
	u32 debug_level;
892
893
894
	u32 framecnt_to_us;
	atomic_t restrict_refcnt;
#endif
Christoph Hellwig's avatar
Christoph Hellwig committed
895
};				/*iwl3945_priv */
896

Christoph Hellwig's avatar
Christoph Hellwig committed
897
static inline int iwl3945_is_associated(struct iwl3945_priv *priv)
898
899
900
901
{
	return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
}

Christoph Hellwig's avatar
Christoph Hellwig committed
902
static inline int is_channel_valid(const struct iwl3945_channel_info *ch_info)
903
904
905
906
907
908
{
	if (ch_info == NULL)
		return 0;
	return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
}

Christoph Hellwig's avatar
Christoph Hellwig committed
909
static inline int is_channel_radar(const struct iwl3945_channel_info *ch_info)
910
911
912
913
{
	return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
}

Christoph Hellwig's avatar
Christoph Hellwig committed
914
static inline u8 is_channel_a_band(const struct iwl3945_channel_info *ch_info)
915
{
916
	return ch_info->band == IEEE80211_BAND_5GHZ;
917
918
}

Christoph Hellwig's avatar
Christoph Hellwig committed
919
static inline u8 is_channel_bg_band(const struct iwl3945_channel_info *ch_info)
920
{
921
	return ch_info->band == IEEE80211_BAND_2GHZ;
922
923
}

Christoph Hellwig's avatar
Christoph Hellwig committed
924
static inline int is_channel_passive(const struct iwl3945_channel_info *ch)
925
926
927
928
{
	return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
}

Christoph Hellwig's avatar
Christoph Hellwig committed
929
static inline int is_channel_ibss(const struct iwl3945_channel_info *ch)
930
931
932
933
{
	return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
}

Christoph Hellwig's avatar
Christoph Hellwig committed
934
extern const struct iwl3945_channel_info *iwl3945_get_channel_info(
935
	const struct iwl3945_priv *priv, enum ieee80211_band band, u16 channel);
936

937
938
extern int iwl3945_rs_next_rate(struct iwl3945_priv *priv, int rate);

Christoph Hellwig's avatar
Christoph Hellwig committed
939
/* Requires full declaration of iwl3945_priv before including */
940
941
#include "iwl-3945-io.h"

942
#endif