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 * Intel Linux Wireless <ilw@linux.intel.com>
23 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
24 *
25 *****************************************************************************/
26 /*
27 * Please use this file (iwl-3945.h) for driver implementation definitions.
28 * Please use iwl-3945-commands.h for uCode API definitions.
29 * Please use iwl-3945-hw.h for hardware-related definitions.
30 */
31
32 #ifndef __iwl_3945_h__
33 #define __iwl_3945_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 /*used for rfkill*/
40 #include <linux/rfkill.h>
41 #include <linux/input.h>
42
43 /* Hardware specific file defines the PCI IDs table for that hardware module */
44 extern struct pci_device_id iwl3945_hw_card_ids[];
45
46 #define DRV_NAME "iwl3945"
47 #include "iwl-csr.h"
48 #include "iwl-prph.h"
49 #include "iwl-3945-hw.h"
50 #include "iwl-3945-debug.h"
51 #include "iwl-3945-led.h"
52
53 /* Highest firmware API version supported */
54 #define IWL3945_UCODE_API_MAX 2
55
56 /* Lowest firmware API version supported */
57 #define IWL3945_UCODE_API_MIN 1
58
59 #define IWL3945_FW_PRE "iwlwifi-3945-"
60 #define _IWL3945_MODULE_FIRMWARE(api) IWL3945_FW_PRE #api ".ucode"
61 #define IWL3945_MODULE_FIRMWARE(api) _IWL3945_MODULE_FIRMWARE(api)
62
63 /* Default noise level to report when noise measurement is not available.
64 * This may be because we're:
65 * 1) Not associated (4965, no beacon statistics being sent to driver)
66 * 2) Scanning (noise measurement does not apply to associated channel)
67 * 3) Receiving CCK (3945 delivers noise info only for OFDM frames)
68 * Use default noise value of -127 ... this is below the range of measurable
69 * Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
70 * Also, -127 works better than 0 when averaging frames with/without
71 * noise info (e.g. averaging might be done in app); measured dBm values are
72 * always negative ... using a negative value as the default keeps all
73 * averages within an s8's (used in some apps) range of negative values. */
74 #define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
75
76 /* Module parameters accessible from iwl-*.c */
77 extern int iwl3945_param_hwcrypto;
78 extern int iwl3945_param_queues_num;
79
80 struct iwl3945_sta_priv {
81 struct iwl3945_rs_sta *rs_sta;
82 };
83
84 enum iwl3945_antenna {
85 IWL_ANTENNA_DIVERSITY,
86 IWL_ANTENNA_MAIN,
87 IWL_ANTENNA_AUX
88 };
89
90 /*
91 * RTS threshold here is total size [2347] minus 4 FCS bytes
92 * Per spec:
93 * a value of 0 means RTS on all data/management packets
94 * a value > max MSDU size means no RTS
95 * else RTS for data/management frames where MPDU is larger
96 * than RTS value.
97 */
98 #define IWL_RX_BUF_SIZE 3000U
99 #define DEFAULT_RTS_THRESHOLD 2347U
100 #define MIN_RTS_THRESHOLD 0U
101 #define MAX_RTS_THRESHOLD 2347U
102 #define MAX_MSDU_SIZE 2304U
103 #define MAX_MPDU_SIZE 2346U
104 #define DEFAULT_BEACON_INTERVAL 100U
105 #define DEFAULT_SHORT_RETRY_LIMIT 7U
106 #define DEFAULT_LONG_RETRY_LIMIT 4U
107
108 struct iwl3945_rx_mem_buffer {
109 dma_addr_t dma_addr;
110 struct sk_buff *skb;
111 struct list_head list;
112 };
113
114 /*
115 * Generic queue structure
116 *
117 * Contains common data for Rx and Tx queues
118 */
119 struct iwl3945_queue {
120 int n_bd; /* number of BDs in this queue */
121 int write_ptr; /* 1-st empty entry (index) host_w*/
122 int read_ptr; /* last used entry (index) host_r*/
123 dma_addr_t dma_addr; /* physical addr for BD's */
124 int n_window; /* safe queue window */
125 u32 id;
126 int low_mark; /* low watermark, resume queue if free
127 * space more than this */
128 int high_mark; /* high watermark, stop queue if free
129 * space less than this */
130 } __attribute__ ((packed));
131
132 int iwl3945_queue_space(const struct iwl3945_queue *q);
133 int iwl3945_x2_queue_used(const struct iwl3945_queue *q, int i);
134
135 #define MAX_NUM_OF_TBS (20)
136
137 /* One for each TFD */
138 struct iwl3945_tx_info {
139 struct sk_buff *skb[MAX_NUM_OF_TBS];
140 };
141
142 /**
143 * struct iwl3945_tx_queue - Tx Queue for DMA
144 * @q: generic Rx/Tx queue descriptor
145 * @bd: base of circular buffer of TFDs
146 * @cmd: array of command/Tx buffers
147 * @dma_addr_cmd: physical address of cmd/tx buffer array
148 * @txb: array of per-TFD driver data
149 * @need_update: indicates need to update read/write index
150 *
151 * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
152 * descriptors) and required locking structures.
153 */
154 struct iwl3945_tx_queue {
155 struct iwl3945_queue q;
156 struct iwl3945_tfd_frame *bd;
157 struct iwl3945_cmd *cmd;
158 dma_addr_t dma_addr_cmd;
159 struct iwl3945_tx_info *txb;
160 int need_update;
161 int active;
162 };
163
164 #define IWL_NUM_SCAN_RATES (2)
165
166 struct iwl3945_channel_tgd_info {
167 u8 type;
168 s8 max_power;
169 };
170
171 struct iwl3945_channel_tgh_info {
172 s64 last_radar_time;
173 };
174
175 /* current Tx power values to use, one for each rate for each channel.
176 * requested power is limited by:
177 * -- regulatory EEPROM limits for this channel
178 * -- hardware capabilities (clip-powers)
179 * -- spectrum management
180 * -- user preference (e.g. iwconfig)
181 * when requested power is set, base power index must also be set. */
182 struct iwl3945_channel_power_info {
183 struct iwl3945_tx_power tpc; /* actual radio and DSP gain settings */
184 s8 power_table_index; /* actual (compenst'd) index into gain table */
185 s8 base_power_index; /* gain index for power at factory temp. */
186 s8 requested_power; /* power (dBm) requested for this chnl/rate */
187 };
188
189 /* current scan Tx power values to use, one for each scan rate for each
190 * channel. */
191 struct iwl3945_scan_power_info {
192 struct iwl3945_tx_power tpc; /* actual radio and DSP gain settings */
193 s8 power_table_index; /* actual (compenst'd) index into gain table */
194 s8 requested_power; /* scan pwr (dBm) requested for chnl/rate */
195 };
196
197 /*
198 * One for each channel, holds all channel setup data
199 * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
200 * with one another!
201 */
202 #define IWL4965_MAX_RATE (33)
203
204 struct iwl3945_channel_info {
205 struct iwl3945_channel_tgd_info tgd;
206 struct iwl3945_channel_tgh_info tgh;
207 struct iwl3945_eeprom_channel eeprom; /* EEPROM regulatory limit */
208 struct iwl3945_eeprom_channel fat_eeprom; /* EEPROM regulatory limit for
209 * FAT channel */
210
211 u8 channel; /* channel number */
212 u8 flags; /* flags copied from EEPROM */
213 s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
214 s8 curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) */
215 s8 min_power; /* always 0 */
216 s8 scan_power; /* (dBm) regul. eeprom, direct scans, any rate */
217
218 u8 group_index; /* 0-4, maps channel to group1/2/3/4/5 */
219 u8 band_index; /* 0-4, maps channel to band1/2/3/4/5 */
220 enum ieee80211_band band;
221
222 /* Radio/DSP gain settings for each "normal" data Tx rate.
223 * These include, in addition to RF and DSP gain, a few fields for
224 * remembering/modifying gain settings (indexes). */
225 struct iwl3945_channel_power_info power_info[IWL4965_MAX_RATE];
226
227 /* Radio/DSP gain settings for each scan rate, for directed scans. */
228 struct iwl3945_scan_power_info scan_pwr_info[IWL_NUM_SCAN_RATES];
229 };
230
231 struct iwl3945_clip_group {
232 /* maximum power level to prevent clipping for each rate, derived by
233 * us from this band's saturation power in EEPROM */
234 const s8 clip_powers[IWL_MAX_RATES];
235 };
236
237 #include "iwl-3945-rs.h"
238
239 #define IWL_TX_FIFO_AC0 0
240 #define IWL_TX_FIFO_AC1 1
241 #define IWL_TX_FIFO_AC2 2
242 #define IWL_TX_FIFO_AC3 3
243 #define IWL_TX_FIFO_HCCA_1 5
244 #define IWL_TX_FIFO_HCCA_2 6
245 #define IWL_TX_FIFO_NONE 7
246
247 /* Minimum number of queues. MAX_NUM is defined in hw specific files */
248 #define IWL_MIN_NUM_QUEUES 4
249
250 /* Power management (not Tx power) structures */
251
252 struct iwl3945_power_vec_entry {
253 struct iwl3945_powertable_cmd cmd;
254 u8 no_dtim;
255 };
256 #define IWL_POWER_RANGE_0 (0)
257 #define IWL_POWER_RANGE_1 (1)
258
259 #define IWL_POWER_MODE_CAM 0x00 /* Continuously Aware Mode, always on */
260 #define IWL_POWER_INDEX_3 0x03
261 #define IWL_POWER_INDEX_5 0x05
262 #define IWL_POWER_AC 0x06
263 #define IWL_POWER_BATTERY 0x07
264 #define IWL_POWER_LIMIT 0x07
265 #define IWL_POWER_MASK 0x0F
266 #define IWL_POWER_ENABLED 0x10
267 #define IWL_POWER_LEVEL(x) ((x) & IWL_POWER_MASK)
268
269 struct iwl3945_power_mgr {
270 spinlock_t lock;
271 struct iwl3945_power_vec_entry pwr_range_0[IWL_POWER_AC];
272 struct iwl3945_power_vec_entry pwr_range_1[IWL_POWER_AC];
273 u8 active_index;
274 u32 dtim_val;
275 };
276
277 #define IEEE80211_DATA_LEN 2304
278 #define IEEE80211_4ADDR_LEN 30
279 #define IEEE80211_HLEN (IEEE80211_4ADDR_LEN)
280 #define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
281
282 struct iwl3945_frame {
283 union {
284 struct ieee80211_hdr frame;
285 struct iwl3945_tx_beacon_cmd beacon;
286 u8 raw[IEEE80211_FRAME_LEN];
287 u8 cmd[360];
288 } u;
289 struct list_head list;
290 };
291
292 #define SEQ_TO_QUEUE(x) ((x >> 8) & 0xbf)
293 #define QUEUE_TO_SEQ(x) ((x & 0xbf) << 8)
294 #define SEQ_TO_INDEX(x) ((u8)(x & 0xff))
295 #define INDEX_TO_SEQ(x) ((u8)(x & 0xff))
296 #define SEQ_HUGE_FRAME (0x4000)
297 #define SEQ_RX_FRAME __constant_cpu_to_le16(0x8000)
298 #define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
299 #define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
300 #define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
301
302 enum {
303 /* CMD_SIZE_NORMAL = 0, */
304 CMD_SIZE_HUGE = (1 << 0),
305 /* CMD_SYNC = 0, */
306 CMD_ASYNC = (1 << 1),
307 /* CMD_NO_SKB = 0, */
308 CMD_WANT_SKB = (1 << 2),
309 };
310
311 struct iwl3945_cmd;
312 struct iwl3945_priv;
313
314 struct iwl3945_cmd_meta {
315 struct iwl3945_cmd_meta *source;
316 union {
317 struct sk_buff *skb;
318 int (*callback)(struct iwl3945_priv *priv,
319 struct iwl3945_cmd *cmd, struct sk_buff *skb);
320 } __attribute__ ((packed)) u;
321
322 /* The CMD_SIZE_HUGE flag bit indicates that the command
323 * structure is stored at the end of the shared queue memory. */
324 u32 flags;
325
326 } __attribute__ ((packed));
327
328 /**
329 * struct iwl3945_cmd
330 *
331 * For allocation of the command and tx queues, this establishes the overall
332 * size of the largest command we send to uCode, except for a scan command
333 * (which is relatively huge; space is allocated separately).
334 */
335 struct iwl3945_cmd {
336 struct iwl3945_cmd_meta meta;
337 struct iwl3945_cmd_header hdr;
338 union {
339 struct iwl3945_addsta_cmd addsta;
340 struct iwl3945_led_cmd led;
341 u32 flags;
342 u8 val8;
343 u16 val16;
344 u32 val32;
345 struct iwl3945_bt_cmd bt;
346 struct iwl3945_rxon_time_cmd rxon_time;
347 struct iwl3945_powertable_cmd powertable;
348 struct iwl3945_qosparam_cmd qosparam;
349 struct iwl3945_tx_cmd tx;
350 struct iwl3945_tx_beacon_cmd tx_beacon;
351 struct iwl3945_rxon_assoc_cmd rxon_assoc;
352 u8 *indirect;
353 u8 payload[360];
354 } __attribute__ ((packed)) cmd;
355 } __attribute__ ((packed));
356
357 struct iwl3945_host_cmd {
358 u8 id;
359 u16 len;
360 struct iwl3945_cmd_meta meta;
361 const void *data;
362 };
363
364 #define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl3945_cmd) - \
365 sizeof(struct iwl3945_cmd_meta))
366
367 /*
368 * RX related structures and functions
369 */
370 #define RX_FREE_BUFFERS 64
371 #define RX_LOW_WATERMARK 8
372
373 #define SUP_RATE_11A_MAX_NUM_CHANNELS 8
374 #define SUP_RATE_11B_MAX_NUM_CHANNELS 4
375 #define SUP_RATE_11G_MAX_NUM_CHANNELS 12
376
377 /**
378 * struct iwl3945_rx_queue - Rx queue
379 * @processed: Internal index to last handled Rx packet
380 * @read: Shared index to newest available Rx buffer
381 * @write: Shared index to oldest written Rx packet
382 * @free_count: Number of pre-allocated buffers in rx_free
383 * @rx_free: list of free SKBs for use
384 * @rx_used: List of Rx buffers with no SKB
385 * @need_update: flag to indicate we need to update read/write index
386 *
387 * NOTE: rx_free and rx_used are used as a FIFO for iwl3945_rx_mem_buffers
388 */
389 struct iwl3945_rx_queue {
390 __le32 *bd;
391 dma_addr_t dma_addr;
392 struct iwl3945_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
393 struct iwl3945_rx_mem_buffer *queue[RX_QUEUE_SIZE];
394 u32 processed;
395 u32 read;
396 u32 write;
397 u32 free_count;
398 struct list_head rx_free;
399 struct list_head rx_used;
400 int need_update;
401 spinlock_t lock;
402 };
403
404 #define IWL_SUPPORTED_RATES_IE_LEN 8
405
406 #define SCAN_INTERVAL 100
407
408 #define STATUS_HCMD_ACTIVE 0 /* host command in progress */
409 #define STATUS_HCMD_SYNC_ACTIVE 1 /* sync host command in progress */
410 #define STATUS_INT_ENABLED 2
411 #define STATUS_RF_KILL_HW 3
412 #define STATUS_RF_KILL_SW 4
413 #define STATUS_INIT 5
414 #define STATUS_ALIVE 6
415 #define STATUS_READY 7
416 #define STATUS_TEMPERATURE 8
417 #define STATUS_GEO_CONFIGURED 9
418 #define STATUS_EXIT_PENDING 10
419 #define STATUS_IN_SUSPEND 11
420 #define STATUS_STATISTICS 12
421 #define STATUS_SCANNING 13
422 #define STATUS_SCAN_ABORTING 14
423 #define STATUS_SCAN_HW 15
424 #define STATUS_POWER_PMI 16
425 #define STATUS_FW_ERROR 17
426 #define STATUS_CONF_PENDING 18
427
428 #define MAX_TID_COUNT 9
429
430 #define IWL_INVALID_RATE 0xFF
431 #define IWL_INVALID_VALUE -1
432
433 struct iwl3945_tid_data {
434 u16 seq_number;
435 };
436
437 struct iwl3945_hw_key {
438 enum ieee80211_key_alg alg;
439 int keylen;
440 u8 key[32];
441 };
442
443 union iwl3945_ht_rate_supp {
444 u16 rates;
445 struct {
446 u8 siso_rate;
447 u8 mimo_rate;
448 };
449 };
450
451 union iwl3945_qos_capabity {
452 struct {
453 u8 edca_count:4; /* bit 0-3 */
454 u8 q_ack:1; /* bit 4 */
455 u8 queue_request:1; /* bit 5 */
456 u8 txop_request:1; /* bit 6 */
457 u8 reserved:1; /* bit 7 */
458 } q_AP;
459 struct {
460 u8 acvo_APSD:1; /* bit 0 */
461 u8 acvi_APSD:1; /* bit 1 */
462 u8 ac_bk_APSD:1; /* bit 2 */
463 u8 ac_be_APSD:1; /* bit 3 */
464 u8 q_ack:1; /* bit 4 */
465 u8 max_len:2; /* bit 5-6 */
466 u8 more_data_ack:1; /* bit 7 */
467 } q_STA;
468 u8 val;
469 };
470
471 /* QoS structures */
472 struct iwl3945_qos_info {
473 int qos_active;
474 union iwl3945_qos_capabity qos_cap;
475 struct iwl3945_qosparam_cmd def_qos_parm;
476 };
477
478 #define STA_PS_STATUS_WAKE 0
479 #define STA_PS_STATUS_SLEEP 1
480
481 struct iwl3945_station_entry {
482 struct iwl3945_addsta_cmd sta;
483 struct iwl3945_tid_data tid[MAX_TID_COUNT];
484 union {
485 struct {
486 u8 rate;
487 u8 flags;
488 } s;
489 u16 rate_n_flags;
490 } current_rate;
491 u8 used;
492 u8 ps_status;
493 struct iwl3945_hw_key keyinfo;
494 };
495
496 /* one for each uCode image (inst/data, boot/init/runtime) */
497 struct fw_desc {
498 void *v_addr; /* access by driver */
499 dma_addr_t p_addr; /* access by card's busmaster DMA */
500 u32 len; /* bytes */
501 };
502
503 /* uCode file layout */
504 struct iwl3945_ucode {
505 __le32 ver; /* major/minor/API/serial */
506 __le32 inst_size; /* bytes of runtime instructions */
507 __le32 data_size; /* bytes of runtime data */
508 __le32 init_size; /* bytes of initialization instructions */
509 __le32 init_data_size; /* bytes of initialization data */
510 __le32 boot_size; /* bytes of bootstrap instructions */
511 u8 data[0]; /* data in same order as "size" elements */
512 };
513
514 struct iwl3945_ibss_seq {
515 u8 mac[ETH_ALEN];
516 u16 seq_num;
517 u16 frag_num;
518 unsigned long packet_time;
519 struct list_head list;
520 };
521
522 /**
523 * struct iwl3945_driver_hw_info
524 * @max_txq_num: Max # Tx queues supported
525 * @tx_cmd_len: Size of Tx command (but not including frame itself)
526 * @tx_ant_num: Number of TX antennas
527 * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
528 * @rx_buf_size:
529 * @max_pkt_size:
530 * @max_rxq_log: Log-base-2 of max_rxq_size
531 * @max_stations:
532 * @bcast_sta_id:
533 * @shared_virt: Pointer to driver/uCode shared Tx Byte Counts and Rx status
534 * @shared_phys: Physical Pointer to Tx Byte Counts and Rx status
535 */
536 struct iwl3945_driver_hw_info {
537 u16 max_txq_num;
538 u16 tx_cmd_len;
539 u16 tx_ant_num;
540 u16 max_rxq_size;
541 u32 rx_buf_size;
542 u32 max_pkt_size;
543 u16 max_rxq_log;
544 u8 max_stations;
545 u8 bcast_sta_id;
546 void *shared_virt;
547 dma_addr_t shared_phys;
548 };
549
550 #define IWL_RX_HDR(x) ((struct iwl3945_rx_frame_hdr *)(\
551 x->u.rx_frame.stats.payload + \
552 x->u.rx_frame.stats.phy_count))
553 #define IWL_RX_END(x) ((struct iwl3945_rx_frame_end *)(\
554 IWL_RX_HDR(x)->payload + \
555 le16_to_cpu(IWL_RX_HDR(x)->len)))
556 #define IWL_RX_STATS(x) (&x->u.rx_frame.stats)
557 #define IWL_RX_DATA(x) (IWL_RX_HDR(x)->payload)
558
559
560 /******************************************************************************
561 *
562 * Functions implemented in iwl-base.c which are forward declared here
563 * for use by iwl-*.c
564 *
565 *****************************************************************************/
566 struct iwl3945_addsta_cmd;
567 extern int iwl3945_send_add_station(struct iwl3945_priv *priv,
568 struct iwl3945_addsta_cmd *sta, u8 flags);
569 extern u8 iwl3945_add_station(struct iwl3945_priv *priv, const u8 *bssid,
570 int is_ap, u8 flags);
571 extern int iwl3945_power_init_handle(struct iwl3945_priv *priv);
572 extern int iwl3945_eeprom_init(struct iwl3945_priv *priv);
573 extern int iwl3945_rx_queue_alloc(struct iwl3945_priv *priv);
574 extern void iwl3945_rx_queue_reset(struct iwl3945_priv *priv,
575 struct iwl3945_rx_queue *rxq);
576 extern int iwl3945_calc_db_from_ratio(int sig_ratio);
577 extern int iwl3945_calc_sig_qual(int rssi_dbm, int noise_dbm);
578 extern int iwl3945_tx_queue_init(struct iwl3945_priv *priv,
579 struct iwl3945_tx_queue *txq, int count, u32 id);
580 extern void iwl3945_rx_replenish(void *data);
581 extern void iwl3945_tx_queue_free(struct iwl3945_priv *priv, struct iwl3945_tx_queue *txq);
582 extern int iwl3945_send_cmd_pdu(struct iwl3945_priv *priv, u8 id, u16 len,
583 const void *data);
584 extern int __must_check iwl3945_send_cmd(struct iwl3945_priv *priv,
585 struct iwl3945_host_cmd *cmd);
586 extern unsigned int iwl3945_fill_beacon_frame(struct iwl3945_priv *priv,
587 struct ieee80211_hdr *hdr,int left);
588 extern int iwl3945_rx_queue_update_write_ptr(struct iwl3945_priv *priv,
589 struct iwl3945_rx_queue *q);
590 extern int iwl3945_send_statistics_request(struct iwl3945_priv *priv);
591 extern void iwl3945_set_decrypted_flag(struct iwl3945_priv *priv, struct sk_buff *skb,
592 u32 decrypt_res,
593 struct ieee80211_rx_status *stats);
594 extern const u8 iwl3945_broadcast_addr[ETH_ALEN];
595
596 /*
597 * Currently used by iwl-3945-rs... look at restructuring so that it doesn't
598 * call this... todo... fix that.
599 */
600 extern u8 iwl3945_sync_station(struct iwl3945_priv *priv, int sta_id,
601 u16 tx_rate, u8 flags);
602
603 /******************************************************************************
604 *
605 * Functions implemented in iwl-[34]*.c which are forward declared here
606 * for use by iwl-base.c
607 *
608 * NOTE: The implementation of these functions are hardware specific
609 * which is why they are in the hardware specific files (vs. iwl-base.c)
610 *
611 * Naming convention --
612 * iwl3945_ <-- Its part of iwlwifi (should be changed to iwl3945_)
613 * iwl3945_hw_ <-- Hardware specific (implemented in iwl-XXXX.c by all HW)
614 * iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
615 * iwl3945_bg_ <-- Called from work queue context
616 * iwl3945_mac_ <-- mac80211 callback
617 *
618 ****************************************************************************/
619 extern void iwl3945_hw_rx_handler_setup(struct iwl3945_priv *priv);
620 extern void iwl3945_hw_setup_deferred_work(struct iwl3945_priv *priv);
621 extern void iwl3945_hw_cancel_deferred_work(struct iwl3945_priv *priv);
622 extern int iwl3945_hw_rxq_stop(struct iwl3945_priv *priv);
623 extern int iwl3945_hw_set_hw_setting(struct iwl3945_priv *priv);
624 extern int iwl3945_hw_nic_init(struct iwl3945_priv *priv);
625 extern int iwl3945_hw_nic_stop_master(struct iwl3945_priv *priv);
626 extern void iwl3945_hw_txq_ctx_free(struct iwl3945_priv *priv);
627 extern void iwl3945_hw_txq_ctx_stop(struct iwl3945_priv *priv);
628 extern int iwl3945_hw_nic_reset(struct iwl3945_priv *priv);
629 extern int iwl3945_hw_txq_attach_buf_to_tfd(struct iwl3945_priv *priv, void *tfd,
630 dma_addr_t addr, u16 len);
631 extern int iwl3945_hw_txq_free_tfd(struct iwl3945_priv *priv, struct iwl3945_tx_queue *txq);
632 extern int iwl3945_hw_get_temperature(struct iwl3945_priv *priv);
633 extern int iwl3945_hw_tx_queue_init(struct iwl3945_priv *priv,
634 struct iwl3945_tx_queue *txq);
635 extern unsigned int iwl3945_hw_get_beacon_cmd(struct iwl3945_priv *priv,
636 struct iwl3945_frame *frame, u8 rate);
637 extern int iwl3945_hw_get_rx_read(struct iwl3945_priv *priv);
638 extern void iwl3945_hw_build_tx_cmd_rate(struct iwl3945_priv *priv,
639 struct iwl3945_cmd *cmd,
640 struct ieee80211_tx_info *info,
641 struct ieee80211_hdr *hdr,
642 int sta_id, int tx_id);
643 extern int iwl3945_hw_reg_send_txpower(struct iwl3945_priv *priv);
644 extern int iwl3945_hw_reg_set_txpower(struct iwl3945_priv *priv, s8 power);
645 extern void iwl3945_hw_rx_statistics(struct iwl3945_priv *priv,
646 struct iwl3945_rx_mem_buffer *rxb);
647 extern void iwl3945_disable_events(struct iwl3945_priv *priv);
648 extern int iwl4965_get_temperature(const struct iwl3945_priv *priv);
649
650 /**
651 * iwl3945_hw_find_station - Find station id for a given BSSID
652 * @bssid: MAC address of station ID to find
653 *
654 * NOTE: This should not be hardware specific but the code has
655 * not yet been merged into a single common layer for managing the
656 * station tables.
657 */
658 extern u8 iwl3945_hw_find_station(struct iwl3945_priv *priv, const u8 *bssid);
659
660 extern int iwl3945_hw_channel_switch(struct iwl3945_priv *priv, u16 channel);
661
662 /*
663 * Forward declare iwl-3945.c functions for iwl-base.c
664 */
665 extern __le32 iwl3945_get_antenna_flags(const struct iwl3945_priv *priv);
666 extern int iwl3945_init_hw_rate_table(struct iwl3945_priv *priv);
667 extern void iwl3945_reg_txpower_periodic(struct iwl3945_priv *priv);
668 extern int iwl3945_txpower_set_from_eeprom(struct iwl3945_priv *priv);
669 extern u8 iwl3945_sync_sta(struct iwl3945_priv *priv, int sta_id,
670 u16 tx_rate, u8 flags);
671
672
673 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
674
675 enum {
676 MEASUREMENT_READY = (1 << 0),
677 MEASUREMENT_ACTIVE = (1 << 1),
678 };
679
680 #endif
681
682 #ifdef CONFIG_IWL3945_RFKILL
683 struct iwl3945_priv;
684
685 void iwl3945_rfkill_set_hw_state(struct iwl3945_priv *priv);
686 void iwl3945_rfkill_unregister(struct iwl3945_priv *priv);
687 int iwl3945_rfkill_init(struct iwl3945_priv *priv);
688 #else
iwl3945_rfkill_set_hw_state(struct iwl3945_priv * priv)689 static inline void iwl3945_rfkill_set_hw_state(struct iwl3945_priv *priv) {}
iwl3945_rfkill_unregister(struct iwl3945_priv * priv)690 static inline void iwl3945_rfkill_unregister(struct iwl3945_priv *priv) {}
iwl3945_rfkill_init(struct iwl3945_priv * priv)691 static inline int iwl3945_rfkill_init(struct iwl3945_priv *priv) { return 0; }
692 #endif
693
694 #define IWL_MAX_NUM_QUEUES IWL39_MAX_NUM_QUEUES
695
696 struct iwl3945_priv {
697
698 /* ieee device used by generic ieee processing code */
699 struct ieee80211_hw *hw;
700 struct ieee80211_channel *ieee_channels;
701 struct ieee80211_rate *ieee_rates;
702 struct iwl_3945_cfg *cfg; /* device configuration */
703
704 /* temporary frame storage list */
705 struct list_head free_frames;
706 int frames_count;
707
708 enum ieee80211_band band;
709 int alloc_rxb_skb;
710
711 void (*rx_handlers[REPLY_MAX])(struct iwl3945_priv *priv,
712 struct iwl3945_rx_mem_buffer *rxb);
713
714 struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
715
716 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
717 /* spectrum measurement report caching */
718 struct iwl3945_spectrum_notification measure_report;
719 u8 measurement_status;
720 #endif
721 /* ucode beacon time */
722 u32 ucode_beacon_time;
723
724 /* we allocate array of iwl3945_channel_info for NIC's valid channels.
725 * Access via channel # using indirect index array */
726 struct iwl3945_channel_info *channel_info; /* channel info array */
727 u8 channel_count; /* # of channels */
728
729 /* each calibration channel group in the EEPROM has a derived
730 * clip setting for each rate. */
731 const struct iwl3945_clip_group clip_groups[5];
732
733 /* thermal calibration */
734 s32 temperature; /* degrees Kelvin */
735 s32 last_temperature;
736
737 /* Scan related variables */
738 unsigned long last_scan_jiffies;
739 unsigned long next_scan_jiffies;
740 unsigned long scan_start;
741 unsigned long scan_pass_start;
742 unsigned long scan_start_tsf;
743 int scan_bands;
744 int one_direct_scan;
745 u8 direct_ssid_len;
746 u8 direct_ssid[IW_ESSID_MAX_SIZE];
747 struct iwl3945_scan_cmd *scan;
748
749 /* spinlock */
750 spinlock_t lock; /* protect general shared data */
751 spinlock_t hcmd_lock; /* protect hcmd */
752 struct mutex mutex;
753
754 /* basic pci-network driver stuff */
755 struct pci_dev *pci_dev;
756
757 /* pci hardware address support */
758 void __iomem *hw_base;
759
760 /* uCode images, save to reload in case of failure */
761 u32 ucode_ver; /* ucode version, copy of
762 iwl3945_ucode.ver */
763 struct fw_desc ucode_code; /* runtime inst */
764 struct fw_desc ucode_data; /* runtime data original */
765 struct fw_desc ucode_data_backup; /* runtime data save/restore */
766 struct fw_desc ucode_init; /* initialization inst */
767 struct fw_desc ucode_init_data; /* initialization data */
768 struct fw_desc ucode_boot; /* bootstrap inst */
769
770
771 struct iwl3945_rxon_time_cmd rxon_timing;
772
773 /* We declare this const so it can only be
774 * changed via explicit cast within the
775 * routines that actually update the physical
776 * hardware */
777 const struct iwl3945_rxon_cmd active_rxon;
778 struct iwl3945_rxon_cmd staging_rxon;
779
780 int error_recovering;
781 struct iwl3945_rxon_cmd recovery_rxon;
782
783 /* 1st responses from initialize and runtime uCode images.
784 * 4965's initialize alive response contains some calibration data. */
785 struct iwl3945_init_alive_resp card_alive_init;
786 struct iwl3945_alive_resp card_alive;
787
788 #ifdef CONFIG_IWL3945_RFKILL
789 struct rfkill *rfkill;
790 #endif
791
792 #ifdef CONFIG_IWL3945_LEDS
793 struct iwl3945_led led[IWL_LED_TRG_MAX];
794 unsigned long last_blink_time;
795 u8 last_blink_rate;
796 u8 allow_blinking;
797 unsigned int rxtxpackets;
798 u64 led_tpt;
799 #endif
800
801
802 u16 active_rate;
803 u16 active_rate_basic;
804
805 u32 sta_supp_rates;
806
807 u8 call_post_assoc_from_beacon;
808 /* Rate scaling data */
809 s8 data_retry_limit;
810 u8 retry_rate;
811
812 wait_queue_head_t wait_command_queue;
813
814 int activity_timer_active;
815
816 /* Rx and Tx DMA processing queues */
817 struct iwl3945_rx_queue rxq;
818 struct iwl3945_tx_queue txq[IWL_MAX_NUM_QUEUES];
819
820 unsigned long status;
821
822 int last_rx_rssi; /* From Rx packet statisitics */
823 int last_rx_noise; /* From beacon statistics */
824
825 struct iwl3945_power_mgr power_data;
826
827 struct iwl3945_notif_statistics statistics;
828 unsigned long last_statistics_time;
829
830 /* context information */
831 u16 rates_mask;
832
833 u32 power_mode;
834 u32 antenna;
835 u8 bssid[ETH_ALEN];
836 u16 rts_threshold;
837 u8 mac_addr[ETH_ALEN];
838
839 /*station table variables */
840 spinlock_t sta_lock;
841 int num_stations;
842 struct iwl3945_station_entry stations[IWL_STATION_COUNT];
843
844 /* Indication if ieee80211_ops->open has been called */
845 u8 is_open;
846
847 u8 mac80211_registered;
848
849 /* Rx'd packet timing information */
850 u32 last_beacon_time;
851 u64 last_tsf;
852
853 /* eeprom */
854 struct iwl3945_eeprom eeprom;
855
856 enum nl80211_iftype iw_mode;
857
858 struct sk_buff *ibss_beacon;
859
860 /* Last Rx'd beacon timestamp */
861 u32 timestamp0;
862 u32 timestamp1;
863 u16 beacon_int;
864 struct iwl3945_driver_hw_info hw_setting;
865 struct ieee80211_vif *vif;
866
867 /* Current association information needed to configure the
868 * hardware */
869 u16 assoc_id;
870 u16 assoc_capability;
871 u8 ps_mode;
872
873 struct iwl3945_qos_info qos_data;
874
875 struct workqueue_struct *workqueue;
876
877 struct work_struct up;
878 struct work_struct restart;
879 struct work_struct calibrated_work;
880 struct work_struct scan_completed;
881 struct work_struct rx_replenish;
882 struct work_struct rf_kill;
883 struct work_struct abort_scan;
884 struct work_struct update_link_led;
885 struct work_struct auth_work;
886 struct work_struct report_work;
887 struct work_struct request_scan;
888 struct work_struct beacon_update;
889
890 struct tasklet_struct irq_tasklet;
891
892 struct delayed_work init_alive_start;
893 struct delayed_work alive_start;
894 struct delayed_work activity_timer;
895 struct delayed_work thermal_periodic;
896 struct delayed_work gather_stats;
897 struct delayed_work scan_check;
898
899 #define IWL_DEFAULT_TX_POWER 0x0F
900 s8 user_txpower_limit;
901 s8 max_channel_txpower_limit;
902
903
904 #ifdef CONFIG_IWL3945_DEBUG
905 /* debugging info */
906 u32 framecnt_to_us;
907 atomic_t restrict_refcnt;
908 #endif
909 }; /*iwl3945_priv */
910
iwl3945_is_associated(struct iwl3945_priv * priv)911 static inline int iwl3945_is_associated(struct iwl3945_priv *priv)
912 {
913 return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
914 }
915
is_channel_valid(const struct iwl3945_channel_info * ch_info)916 static inline int is_channel_valid(const struct iwl3945_channel_info *ch_info)
917 {
918 if (ch_info == NULL)
919 return 0;
920 return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
921 }
922
is_channel_radar(const struct iwl3945_channel_info * ch_info)923 static inline int is_channel_radar(const struct iwl3945_channel_info *ch_info)
924 {
925 return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
926 }
927
is_channel_a_band(const struct iwl3945_channel_info * ch_info)928 static inline u8 is_channel_a_band(const struct iwl3945_channel_info *ch_info)
929 {
930 return ch_info->band == IEEE80211_BAND_5GHZ;
931 }
932
is_channel_bg_band(const struct iwl3945_channel_info * ch_info)933 static inline u8 is_channel_bg_band(const struct iwl3945_channel_info *ch_info)
934 {
935 return ch_info->band == IEEE80211_BAND_2GHZ;
936 }
937
is_channel_passive(const struct iwl3945_channel_info * ch)938 static inline int is_channel_passive(const struct iwl3945_channel_info *ch)
939 {
940 return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
941 }
942
is_channel_ibss(const struct iwl3945_channel_info * ch)943 static inline int is_channel_ibss(const struct iwl3945_channel_info *ch)
944 {
945 return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
946 }
947
948 extern const struct iwl3945_channel_info *iwl3945_get_channel_info(
949 const struct iwl3945_priv *priv, enum ieee80211_band band, u16 channel);
950
951 extern int iwl3945_rs_next_rate(struct iwl3945_priv *priv, int rate);
952
953 /* Requires full declaration of iwl3945_priv before including */
954 #include "iwl-3945-io.h"
955
956 #endif
957