1 /******************************************************************************
3 * Copyright(c) 2003 - 2008 Intel Corporation. All rights reserved.
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.
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
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
18 * The full GNU General Public License is included in this distribution in the
19 * file called LICENSE.
21 * Contact Information:
22 * James P. Ketrenos <ipw2100-admin@linux.intel.com>
23 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
25 *****************************************************************************/
27 * Please use this file (iwl-4965.h) for driver implementation definitions.
28 * Please use iwl-4965-commands.h for uCode API definitions.
29 * Please use iwl-4965-hw.h for hardware-related definitions.
32 #ifndef __iwl_4965_h__
33 #define __iwl_4965_h__
35 #include <linux/pci.h> /* for struct pci_device_id */
36 #include <linux/kernel.h>
37 #include <net/ieee80211_radiotap.h>
39 #define DRV_NAME "iwl4965"
40 #include "iwl-rfkill.h"
41 #include "iwl-eeprom.h"
42 #include "iwl-4965-hw.h"
45 #include "iwl-debug.h"
47 #include "iwl-power.h"
49 /* configuration for the iwl4965 */
50 extern struct iwl_cfg iwl4965_agn_cfg;
52 /* Change firmware file name, using "-" and incrementing number,
53 * *only* when uCode interface or architecture changes so that it
54 * is not compatible with earlier drivers.
55 * This number will also appear in << 8 position of 1st dword of uCode file */
56 #define IWL4965_UCODE_API "-1"
58 /* CT-KILL constants */
59 #define CT_KILL_THRESHOLD 110 /* in Celsius */
61 /* Default noise level to report when noise measurement is not available.
62 * This may be because we're:
63 * 1) Not associated (4965, no beacon statistics being sent to driver)
64 * 2) Scanning (noise measurement does not apply to associated channel)
65 * 3) Receiving CCK (3945 delivers noise info only for OFDM frames)
66 * Use default noise value of -127 ... this is below the range of measurable
67 * Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
68 * Also, -127 works better than 0 when averaging frames with/without
69 * noise info (e.g. averaging might be done in app); measured dBm values are
70 * always negative ... using a negative value as the default keeps all
71 * averages within an s8's (used in some apps) range of negative values. */
72 #define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
75 * RTS threshold here is total size [2347] minus 4 FCS bytes
77 * a value of 0 means RTS on all data/management packets
78 * a value > max MSDU size means no RTS
79 * else RTS for data/management frames where MPDU is larger
82 #define DEFAULT_RTS_THRESHOLD 2347U
83 #define MIN_RTS_THRESHOLD 0U
84 #define MAX_RTS_THRESHOLD 2347U
85 #define MAX_MSDU_SIZE 2304U
86 #define MAX_MPDU_SIZE 2346U
87 #define DEFAULT_BEACON_INTERVAL 100U
88 #define DEFAULT_SHORT_RETRY_LIMIT 7U
89 #define DEFAULT_LONG_RETRY_LIMIT 4U
91 struct iwl4965_rx_mem_buffer {
94 struct list_head list;
98 * Generic queue structure
100 * Contains common data for Rx and Tx queues
102 struct iwl4965_queue {
103 int n_bd; /* number of BDs in this queue */
104 int write_ptr; /* 1-st empty entry (index) host_w*/
105 int read_ptr; /* last used entry (index) host_r*/
106 dma_addr_t dma_addr; /* physical addr for BD's */
107 int n_window; /* safe queue window */
109 int low_mark; /* low watermark, resume queue if free
110 * space more than this */
111 int high_mark; /* high watermark, stop queue if free
112 * space less than this */
113 } __attribute__ ((packed));
115 #define MAX_NUM_OF_TBS (20)
117 /* One for each TFD */
118 struct iwl4965_tx_info {
119 struct ieee80211_tx_status status;
120 struct sk_buff *skb[MAX_NUM_OF_TBS];
124 * struct iwl4965_tx_queue - Tx Queue for DMA
125 * @q: generic Rx/Tx queue descriptor
126 * @bd: base of circular buffer of TFDs
127 * @cmd: array of command/Tx buffers
128 * @dma_addr_cmd: physical address of cmd/tx buffer array
129 * @txb: array of per-TFD driver data
130 * @need_update: indicates need to update read/write index
131 * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
133 * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
134 * descriptors) and required locking structures.
136 struct iwl4965_tx_queue {
137 struct iwl4965_queue q;
138 struct iwl4965_tfd_frame *bd;
140 dma_addr_t dma_addr_cmd;
141 struct iwl4965_tx_info *txb;
147 #define IWL_NUM_SCAN_RATES (2)
149 struct iwl4965_channel_tgd_info {
154 struct iwl4965_channel_tgh_info {
158 /* current Tx power values to use, one for each rate for each channel.
159 * requested power is limited by:
160 * -- regulatory EEPROM limits for this channel
161 * -- hardware capabilities (clip-powers)
162 * -- spectrum management
163 * -- user preference (e.g. iwconfig)
164 * when requested power is set, base power index must also be set. */
165 struct iwl4965_channel_power_info {
166 struct iwl4965_tx_power tpc; /* actual radio and DSP gain settings */
167 s8 power_table_index; /* actual (compenst'd) index into gain table */
168 s8 base_power_index; /* gain index for power at factory temp. */
169 s8 requested_power; /* power (dBm) requested for this chnl/rate */
172 /* current scan Tx power values to use, one for each scan rate for each
174 struct iwl4965_scan_power_info {
175 struct iwl4965_tx_power tpc; /* actual radio and DSP gain settings */
176 s8 power_table_index; /* actual (compenst'd) index into gain table */
177 s8 requested_power; /* scan pwr (dBm) requested for chnl/rate */
180 /* For fat_extension_channel */
182 HT_IE_EXT_CHANNEL_NONE = 0,
183 HT_IE_EXT_CHANNEL_ABOVE,
184 HT_IE_EXT_CHANNEL_INVALID,
185 HT_IE_EXT_CHANNEL_BELOW,
186 HT_IE_EXT_CHANNEL_MAX
190 * One for each channel, holds all channel setup data
191 * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
194 #define IWL4965_MAX_RATE (33)
196 struct iwl_channel_info {
197 struct iwl4965_channel_tgd_info tgd;
198 struct iwl4965_channel_tgh_info tgh;
199 struct iwl_eeprom_channel eeprom; /* EEPROM regulatory limit */
200 struct iwl_eeprom_channel fat_eeprom; /* EEPROM regulatory limit for
203 u8 channel; /* channel number */
204 u8 flags; /* flags copied from EEPROM */
205 s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
206 s8 curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) limit */
207 s8 min_power; /* always 0 */
208 s8 scan_power; /* (dBm) regul. eeprom, direct scans, any rate */
210 u8 group_index; /* 0-4, maps channel to group1/2/3/4/5 */
211 u8 band_index; /* 0-4, maps channel to band1/2/3/4/5 */
212 enum ieee80211_band band;
214 /* Radio/DSP gain settings for each "normal" data Tx rate.
215 * These include, in addition to RF and DSP gain, a few fields for
216 * remembering/modifying gain settings (indexes). */
217 struct iwl4965_channel_power_info power_info[IWL4965_MAX_RATE];
219 /* FAT channel info */
220 s8 fat_max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
221 s8 fat_curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) */
222 s8 fat_min_power; /* always 0 */
223 s8 fat_scan_power; /* (dBm) eeprom, direct scans, any rate */
224 u8 fat_flags; /* flags copied from EEPROM */
225 u8 fat_extension_channel; /* HT_IE_EXT_CHANNEL_* */
227 /* Radio/DSP gain settings for each scan rate, for directed scans. */
228 struct iwl4965_scan_power_info scan_pwr_info[IWL_NUM_SCAN_RATES];
231 struct iwl4965_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];
237 #include "iwl-4965-rs.h"
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
247 /* Minimum number of queues. MAX_NUM is defined in hw specific files */
248 #define IWL_MIN_NUM_QUEUES 4
250 /* Power management (not Tx power) structures */
257 #define IEEE80211_DATA_LEN 2304
258 #define IEEE80211_4ADDR_LEN 30
259 #define IEEE80211_HLEN (IEEE80211_4ADDR_LEN)
260 #define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
262 struct iwl4965_frame {
264 struct ieee80211_hdr frame;
265 struct iwl4965_tx_beacon_cmd beacon;
266 u8 raw[IEEE80211_FRAME_LEN];
269 struct list_head list;
272 #define SEQ_TO_QUEUE(x) ((x >> 8) & 0xbf)
273 #define QUEUE_TO_SEQ(x) ((x & 0xbf) << 8)
274 #define SEQ_TO_INDEX(x) ((u8)(x & 0xff))
275 #define INDEX_TO_SEQ(x) ((u8)(x & 0xff))
276 #define SEQ_HUGE_FRAME (0x4000)
277 #define SEQ_RX_FRAME __constant_cpu_to_le16(0x8000)
278 #define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
279 #define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
280 #define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
283 /* CMD_SIZE_NORMAL = 0, */
284 CMD_SIZE_HUGE = (1 << 0),
286 CMD_ASYNC = (1 << 1),
287 /* CMD_NO_SKB = 0, */
288 CMD_WANT_SKB = (1 << 2),
294 struct iwl_cmd_meta {
295 struct iwl_cmd_meta *source;
298 int (*callback)(struct iwl_priv *priv,
299 struct iwl_cmd *cmd, struct sk_buff *skb);
300 } __attribute__ ((packed)) u;
302 /* The CMD_SIZE_HUGE flag bit indicates that the command
303 * structure is stored at the end of the shared queue memory. */
306 } __attribute__ ((packed));
311 * For allocation of the command and tx queues, this establishes the overall
312 * size of the largest command we send to uCode, except for a scan command
313 * (which is relatively huge; space is allocated separately).
316 struct iwl_cmd_meta meta; /* driver data */
317 struct iwl_cmd_header hdr; /* uCode API */
319 struct iwl4965_addsta_cmd addsta;
320 struct iwl4965_led_cmd led;
325 struct iwl4965_bt_cmd bt;
326 struct iwl4965_rxon_time_cmd rxon_time;
327 struct iwl4965_powertable_cmd powertable;
328 struct iwl4965_qosparam_cmd qosparam;
329 struct iwl4965_tx_cmd tx;
330 struct iwl4965_tx_beacon_cmd tx_beacon;
331 struct iwl4965_rxon_assoc_cmd rxon_assoc;
334 } __attribute__ ((packed)) cmd;
335 } __attribute__ ((packed));
337 struct iwl_host_cmd {
340 struct iwl_cmd_meta meta;
344 #define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_cmd) - \
345 sizeof(struct iwl_cmd_meta))
348 * RX related structures and functions
350 #define RX_FREE_BUFFERS 64
351 #define RX_LOW_WATERMARK 8
353 #define SUP_RATE_11A_MAX_NUM_CHANNELS 8
354 #define SUP_RATE_11B_MAX_NUM_CHANNELS 4
355 #define SUP_RATE_11G_MAX_NUM_CHANNELS 12
358 * struct iwl4965_rx_queue - Rx queue
359 * @processed: Internal index to last handled Rx packet
360 * @read: Shared index to newest available Rx buffer
361 * @write: Shared index to oldest written Rx packet
362 * @free_count: Number of pre-allocated buffers in rx_free
363 * @rx_free: list of free SKBs for use
364 * @rx_used: List of Rx buffers with no SKB
365 * @need_update: flag to indicate we need to update read/write index
367 * NOTE: rx_free and rx_used are used as a FIFO for iwl4965_rx_mem_buffers
369 struct iwl4965_rx_queue {
372 struct iwl4965_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
373 struct iwl4965_rx_mem_buffer *queue[RX_QUEUE_SIZE];
378 struct list_head rx_free;
379 struct list_head rx_used;
384 #define IWL_SUPPORTED_RATES_IE_LEN 8
386 #define SCAN_INTERVAL 100
388 #define MAX_A_CHANNELS 252
389 #define MIN_A_CHANNELS 7
391 #define MAX_B_CHANNELS 14
392 #define MIN_B_CHANNELS 1
394 #define MAX_TID_COUNT 9
396 #define IWL_INVALID_RATE 0xFF
397 #define IWL_INVALID_VALUE -1
399 #ifdef CONFIG_IWL4965_HT
401 * struct iwl4965_ht_agg -- aggregation status while waiting for block-ack
402 * @txq_id: Tx queue used for Tx attempt
403 * @frame_count: # frames attempted by Tx command
404 * @wait_for_ba: Expect block-ack before next Tx reply
405 * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window
406 * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window
407 * @bitmap1: High order, one bit for each frame pending ACK in Tx window
408 * @rate_n_flags: Rate at which Tx was attempted
410 * If REPLY_TX indicates that aggregation was attempted, driver must wait
411 * for block ack (REPLY_COMPRESSED_BA). This struct stores tx reply info
412 * until block ack arrives.
414 struct iwl4965_ht_agg {
421 #define IWL_AGG_OFF 0
423 #define IWL_EMPTYING_HW_QUEUE_ADDBA 2
424 #define IWL_EMPTYING_HW_QUEUE_DELBA 3
428 #endif /* CONFIG_IWL4965_HT */
430 struct iwl4965_tid_data {
433 #ifdef CONFIG_IWL4965_HT
434 struct iwl4965_ht_agg agg;
435 #endif /* CONFIG_IWL4965_HT */
438 struct iwl4965_hw_key {
439 enum ieee80211_key_alg alg;
442 struct ieee80211_key_conf *conf;
446 union iwl4965_ht_rate_supp {
454 #ifdef CONFIG_IWL4965_HT
455 #define CFG_HT_RX_AMPDU_FACTOR_DEF (0x3)
456 #define CFG_HT_MPDU_DENSITY_2USEC (0x5)
457 #define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_2USEC
460 /* self configuration data */
462 u8 supported_chan_width;
465 u8 sgf; /* HT_SHORT_GI_* short guard interval */
470 /* BSS related data */
472 u8 extension_chan_offset;
475 u8 non_GF_STA_present;
477 #endif /*CONFIG_IWL4965_HT */
479 union iwl4965_qos_capabity {
481 u8 edca_count:4; /* bit 0-3 */
482 u8 q_ack:1; /* bit 4 */
483 u8 queue_request:1; /* bit 5 */
484 u8 txop_request:1; /* bit 6 */
485 u8 reserved:1; /* bit 7 */
488 u8 acvo_APSD:1; /* bit 0 */
489 u8 acvi_APSD:1; /* bit 1 */
490 u8 ac_bk_APSD:1; /* bit 2 */
491 u8 ac_be_APSD:1; /* bit 3 */
492 u8 q_ack:1; /* bit 4 */
493 u8 max_len:2; /* bit 5-6 */
494 u8 more_data_ack:1; /* bit 7 */
500 struct iwl4965_qos_info {
503 union iwl4965_qos_capabity qos_cap;
504 struct iwl4965_qosparam_cmd def_qos_parm;
507 #define STA_PS_STATUS_WAKE 0
508 #define STA_PS_STATUS_SLEEP 1
510 struct iwl4965_station_entry {
511 struct iwl4965_addsta_cmd sta;
512 struct iwl4965_tid_data tid[MAX_TID_COUNT];
515 struct iwl4965_hw_key keyinfo;
518 /* one for each uCode image (inst/data, boot/init/runtime) */
520 void *v_addr; /* access by driver */
521 dma_addr_t p_addr; /* access by card's busmaster DMA */
525 /* uCode file layout */
526 struct iwl4965_ucode {
527 __le32 ver; /* major/minor/subminor */
528 __le32 inst_size; /* bytes of runtime instructions */
529 __le32 data_size; /* bytes of runtime data */
530 __le32 init_size; /* bytes of initialization instructions */
531 __le32 init_data_size; /* bytes of initialization data */
532 __le32 boot_size; /* bytes of bootstrap instructions */
533 u8 data[0]; /* data in same order as "size" elements */
536 #define IWL_IBSS_MAC_HASH_SIZE 32
538 struct iwl4965_ibss_seq {
542 unsigned long packet_time;
543 struct list_head list;
546 struct iwl_sensitivity_ranges {
553 u16 auto_corr_min_ofdm;
554 u16 auto_corr_min_ofdm_mrc;
555 u16 auto_corr_min_ofdm_x1;
556 u16 auto_corr_min_ofdm_mrc_x1;
558 u16 auto_corr_max_ofdm;
559 u16 auto_corr_max_ofdm_mrc;
560 u16 auto_corr_max_ofdm_x1;
561 u16 auto_corr_max_ofdm_mrc_x1;
563 u16 auto_corr_max_cck;
564 u16 auto_corr_max_cck_mrc;
565 u16 auto_corr_min_cck;
566 u16 auto_corr_min_cck_mrc;
570 #define IWL_FAT_CHANNEL_52 BIT(IEEE80211_BAND_5GHZ)
573 * struct iwl_hw_params
574 * @max_txq_num: Max # Tx queues supported
575 * @tx_cmd_len: Size of Tx command (but not including frame itself)
576 * @tx/rx_chains_num: Number of TX/RX chains
577 * @valid_tx/rx_ant: usable antennas
578 * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
579 * @max_rxq_log: Log-base-2 of max_rxq_size
580 * @rx_buf_size: Rx buffer size
583 * @fat_channel: is 40MHz width possible in band 2.4
584 * BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ)
585 * @sw_crypto: 0 for hw, 1 for sw
586 * @max_xxx_size: for ucode uses
587 * @ct_kill_threshold: temperature threshold
588 * @struct iwl_sensitivity_ranges: range of sensitivity values
590 struct iwl_hw_params {
608 u32 ct_kill_threshold; /* value in hw-dependent units */
609 #ifdef CONFIG_IWLWIFI_RUN_TIME_CALIB
610 const struct iwl_sensitivity_ranges *sens;
614 #define HT_SHORT_GI_20MHZ_ONLY (1 << 0)
615 #define HT_SHORT_GI_40MHZ_ONLY (1 << 1)
618 #define IWL_RX_HDR(x) ((struct iwl4965_rx_frame_hdr *)(\
619 x->u.rx_frame.stats.payload + \
620 x->u.rx_frame.stats.phy_count))
621 #define IWL_RX_END(x) ((struct iwl4965_rx_frame_end *)(\
622 IWL_RX_HDR(x)->payload + \
623 le16_to_cpu(IWL_RX_HDR(x)->len)))
624 #define IWL_RX_STATS(x) (&x->u.rx_frame.stats)
625 #define IWL_RX_DATA(x) (IWL_RX_HDR(x)->payload)
628 /******************************************************************************
630 * Functions implemented in iwl-base.c which are forward declared here
633 *****************************************************************************/
634 struct iwl4965_addsta_cmd;
635 extern int iwl4965_send_add_station(struct iwl_priv *priv,
636 struct iwl4965_addsta_cmd *sta, u8 flags);
637 extern u8 iwl4965_add_station_flags(struct iwl_priv *priv, const u8 *addr,
638 int is_ap, u8 flags, void *ht_data);
639 extern int iwl4965_is_network_packet(struct iwl_priv *priv,
640 struct ieee80211_hdr *header);
641 extern int iwl4965_power_init_handle(struct iwl_priv *priv);
642 extern void iwl4965_handle_data_packet_monitor(struct iwl_priv *priv,
643 struct iwl4965_rx_mem_buffer *rxb,
644 void *data, short len,
645 struct ieee80211_rx_status *stats,
647 extern int iwl4965_is_duplicate_packet(struct iwl_priv *priv,
648 struct ieee80211_hdr *header);
649 extern int iwl4965_rx_queue_alloc(struct iwl_priv *priv);
650 extern void iwl4965_rx_queue_reset(struct iwl_priv *priv,
651 struct iwl4965_rx_queue *rxq);
652 extern int iwl4965_calc_db_from_ratio(int sig_ratio);
653 extern int iwl4965_calc_sig_qual(int rssi_dbm, int noise_dbm);
654 extern int iwl4965_tx_queue_init(struct iwl_priv *priv,
655 struct iwl4965_tx_queue *txq, int count, u32 id);
656 extern void iwl4965_rx_replenish(void *data);
657 extern void iwl4965_tx_queue_free(struct iwl_priv *priv, struct iwl4965_tx_queue *txq);
658 extern unsigned int iwl4965_fill_beacon_frame(struct iwl_priv *priv,
659 struct ieee80211_hdr *hdr,
660 const u8 *dest, int left);
661 extern int iwl4965_rx_queue_update_write_ptr(struct iwl_priv *priv,
662 struct iwl4965_rx_queue *q);
663 extern __le16 *ieee80211_get_qos_ctrl(struct ieee80211_hdr *hdr);
664 extern void iwl4965_update_chain_flags(struct iwl_priv *priv);
665 int iwl4965_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src);
667 int iwl4965_init_geos(struct iwl_priv *priv);
668 void iwl4965_free_geos(struct iwl_priv *priv);
670 extern const u8 iwl4965_broadcast_addr[ETH_ALEN];
671 int iwl4965_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd);
674 * Currently used by iwl-3945-rs... look at restructuring so that it doesn't
675 * call this... todo... fix that.
677 extern u8 iwl4965_sync_station(struct iwl_priv *priv, int sta_id,
678 u16 tx_rate, u8 flags);
680 /******************************************************************************
682 * Functions implemented in iwl-[34]*.c which are forward declared here
683 * for use by iwl-base.c
685 * NOTE: The implementation of these functions are hardware specific
686 * which is why they are in the hardware specific files (vs. iwl-base.c)
688 * Naming convention --
689 * iwl4965_ <-- Its part of iwlwifi (should be changed to iwl4965_)
690 * iwl4965_hw_ <-- Hardware specific (implemented in iwl-XXXX.c by all HW)
691 * iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
692 * iwl4965_bg_ <-- Called from work queue context
693 * iwl4965_mac_ <-- mac80211 callback
695 ****************************************************************************/
696 extern void iwl4965_hw_rx_handler_setup(struct iwl_priv *priv);
697 extern void iwl4965_hw_setup_deferred_work(struct iwl_priv *priv);
698 extern void iwl4965_hw_cancel_deferred_work(struct iwl_priv *priv);
699 extern int iwl4965_hw_rxq_stop(struct iwl_priv *priv);
700 extern int iwl4965_hw_set_hw_params(struct iwl_priv *priv);
701 extern int iwl4965_hw_nic_init(struct iwl_priv *priv);
702 extern int iwl4965_hw_nic_stop_master(struct iwl_priv *priv);
703 extern void iwl4965_hw_txq_ctx_free(struct iwl_priv *priv);
704 extern void iwl4965_hw_txq_ctx_stop(struct iwl_priv *priv);
705 extern int iwl4965_hw_nic_reset(struct iwl_priv *priv);
706 extern int iwl4965_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv, void *tfd,
707 dma_addr_t addr, u16 len);
708 extern int iwl4965_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl4965_tx_queue *txq);
709 extern int iwl4965_hw_get_temperature(struct iwl_priv *priv);
710 extern int iwl4965_hw_tx_queue_init(struct iwl_priv *priv,
711 struct iwl4965_tx_queue *txq);
712 extern unsigned int iwl4965_hw_get_beacon_cmd(struct iwl_priv *priv,
713 struct iwl4965_frame *frame, u8 rate);
714 extern int iwl4965_hw_get_rx_read(struct iwl_priv *priv);
715 extern void iwl4965_hw_build_tx_cmd_rate(struct iwl_priv *priv,
717 struct ieee80211_tx_control *ctrl,
718 struct ieee80211_hdr *hdr,
719 int sta_id, int tx_id);
720 extern int iwl4965_hw_reg_send_txpower(struct iwl_priv *priv);
721 extern int iwl4965_hw_reg_set_txpower(struct iwl_priv *priv, s8 power);
722 extern void iwl4965_hw_rx_statistics(struct iwl_priv *priv,
723 struct iwl4965_rx_mem_buffer *rxb);
724 extern void iwl4965_disable_events(struct iwl_priv *priv);
725 extern int iwl4965_get_temperature(const struct iwl_priv *priv);
728 * iwl_find_station - Find station id for a given BSSID
729 * @bssid: MAC address of station ID to find
731 * NOTE: This should not be hardware specific but the code has
732 * not yet been merged into a single common layer for managing the
735 extern u8 iwl_find_station(struct iwl_priv *priv, const u8 *bssid);
737 extern int iwl4965_hw_channel_switch(struct iwl_priv *priv, u16 channel);
738 extern int iwl4965_tx_queue_reclaim(struct iwl_priv *priv, int txq_id, int index);
739 extern int iwl4965_queue_space(const struct iwl4965_queue *q);
742 extern void iwl4965_radio_kill_sw(struct iwl_priv *priv, int disable_radio);
744 * Forward declare iwl-4965.c functions for iwl-base.c
746 extern int iwl4965_tx_queue_update_wr_ptr(struct iwl_priv *priv,
747 struct iwl4965_tx_queue *txq,
749 extern void iwl4965_add_station(struct iwl_priv *priv, const u8 *addr,
751 extern void iwl4965_set_rxon_chain(struct iwl_priv *priv);
752 extern int iwl4965_alive_notify(struct iwl_priv *priv);
753 extern void iwl4965_update_rate_scaling(struct iwl_priv *priv, u8 mode);
754 extern void iwl4965_rf_kill_ct_config(struct iwl_priv *priv);
755 extern void iwl4965_hwrate_to_tx_control(struct iwl_priv *priv,
757 struct ieee80211_tx_control *control);
759 #ifdef CONFIG_IWL4965_HT
760 extern void iwl4965_init_ht_hw_capab(const struct iwl_priv *priv,
761 struct ieee80211_ht_info *ht_info,
762 enum ieee80211_band band);
763 void iwl4965_set_rxon_ht(struct iwl_priv *priv,
764 struct iwl_ht_info *ht_info);
765 void iwl4965_set_ht_add_station(struct iwl_priv *priv, u8 index,
766 struct ieee80211_ht_info *sta_ht_inf);
767 int iwl4965_mac_ampdu_action(struct ieee80211_hw *hw,
768 enum ieee80211_ampdu_mlme_action action,
769 const u8 *addr, u16 tid, u16 *ssn);
770 int iwl4965_check_empty_hw_queue(struct iwl_priv *priv, int sta_id,
773 static inline void iwl4965_init_ht_hw_capab(const struct iwl_priv *priv,
774 struct ieee80211_ht_info *ht_info,
775 enum ieee80211_band band) {}
777 #endif /*CONFIG_IWL4965_HT */
778 /* Structures, enum, and defines specific to the 4965 */
780 #define IWL4965_KW_SIZE 0x1000 /*4k */
788 #define IWL_CHANNEL_WIDTH_20MHZ 0
789 #define IWL_CHANNEL_WIDTH_40MHZ 1
791 #define IWL_MIMO_PS_STATIC 0
792 #define IWL_MIMO_PS_NONE 3
793 #define IWL_MIMO_PS_DYNAMIC 1
794 #define IWL_MIMO_PS_INVALID 2
796 #define IWL_OPERATION_MODE_AUTO 0
797 #define IWL_OPERATION_MODE_HT_ONLY 1
798 #define IWL_OPERATION_MODE_MIXED 2
799 #define IWL_OPERATION_MODE_20MHZ 3
801 #define IWL_EXT_CHANNEL_OFFSET_NONE 0
802 #define IWL_EXT_CHANNEL_OFFSET_ABOVE 1
803 #define IWL_EXT_CHANNEL_OFFSET_RESERVE1 2
804 #define IWL_EXT_CHANNEL_OFFSET_BELOW 3
806 #define NRG_NUM_PREV_STAT_L 20
807 #define NUM_RX_CHAINS (3)
809 #define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
811 struct iwl4965_lq_mngr {
815 u8 *next_higher_rate;
818 unsigned long stamp_last;
824 /* Sensitivity and chain noise calibration */
825 #define INTERFERENCE_DATA_AVAILABLE __constant_cpu_to_le32(1)
826 #define INITIALIZATION_VALUE 0xFFFF
827 #define CAL_NUM_OF_BEACONS 20
828 #define MAXIMUM_ALLOWED_PATHLOSS 15
830 #define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
832 #define MAX_FA_OFDM 50
833 #define MIN_FA_OFDM 5
834 #define MAX_FA_CCK 50
837 #define AUTO_CORR_STEP_OFDM 1
839 #define AUTO_CORR_STEP_CCK 3
840 #define AUTO_CORR_MAX_TH_CCK 160
843 #define NRG_STEP_CCK 2
845 #define MAX_NUMBER_CCK_NO_FA 100
847 #define AUTO_CORR_CCK_MIN_VAL_DEF (125)
852 #define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
853 #define ALL_BAND_FILTER 0xFF00
854 #define IN_BAND_FILTER 0xFF
855 #define MIN_AVERAGE_NOISE_MAX_VALUE 0xFFFFFFFF
857 enum iwl4965_false_alarm_state {
860 IWL_FA_GOOD_RANGE = 2,
863 enum iwl4965_chain_noise_state {
864 IWL_CHAIN_NOISE_ALIVE = 0, /* must be 0 */
865 IWL_CHAIN_NOISE_ACCUMULATE = 1,
866 IWL_CHAIN_NOISE_CALIBRATED = 2,
869 enum iwl4965_calib_enabled_state {
870 IWL_CALIB_DISABLED = 0, /* must be 0 */
871 IWL_CALIB_ENABLED = 1,
874 struct statistics_general_data {
875 u32 beacon_silence_rssi_a;
876 u32 beacon_silence_rssi_b;
877 u32 beacon_silence_rssi_c;
883 #ifdef CONFIG_IWLWIFI_RUN_TIME_CALIB
884 /* Sensitivity calib data */
885 struct iwl_sensitivity_data {
887 u32 auto_corr_ofdm_mrc;
888 u32 auto_corr_ofdm_x1;
889 u32 auto_corr_ofdm_mrc_x1;
891 u32 auto_corr_cck_mrc;
893 u32 last_bad_plcp_cnt_ofdm;
894 u32 last_fa_cnt_ofdm;
895 u32 last_bad_plcp_cnt_cck;
901 u8 nrg_silence_rssi[NRG_NUM_PREV_STAT_L];
906 s32 nrg_auto_corr_silence_diff;
907 u32 num_in_cck_no_fa;
911 /* Chain noise (differential Rx gain) calib data */
912 struct iwl_chain_noise_data {
921 u8 disconn_array[NUM_RX_CHAINS];
922 u8 delta_gain_code[NUM_RX_CHAINS];
925 #endif /* CONFIG_IWLWIFI_RUN_TIME_CALIB */
927 #define EEPROM_SEM_TIMEOUT 10 /* milliseconds */
928 #define EEPROM_SEM_RETRY_LIMIT 1000 /* number of attempts (not time) */
931 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
934 MEASUREMENT_READY = (1 << 0),
935 MEASUREMENT_ACTIVE = (1 << 1),
940 #define IWL_MAX_NUM_QUEUES 20 /* FIXME: do dynamic allocation */
944 /* ieee device used by generic ieee processing code */
945 struct ieee80211_hw *hw;
946 struct ieee80211_channel *ieee_channels;
947 struct ieee80211_rate *ieee_rates;
950 /* temporary frame storage list */
951 struct list_head free_frames;
954 enum ieee80211_band band;
958 void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv,
959 struct iwl4965_rx_mem_buffer *rxb);
961 struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
963 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
964 /* spectrum measurement report caching */
965 struct iwl4965_spectrum_notification measure_report;
966 u8 measurement_status;
968 /* ucode beacon time */
969 u32 ucode_beacon_time;
971 /* we allocate array of iwl4965_channel_info for NIC's valid channels.
972 * Access via channel # using indirect index array */
973 struct iwl_channel_info *channel_info; /* channel info array */
974 u8 channel_count; /* # of channels */
976 /* each calibration channel group in the EEPROM has a derived
977 * clip setting for each rate. */
978 const struct iwl4965_clip_group clip_groups[5];
980 /* thermal calibration */
981 s32 temperature; /* degrees Kelvin */
982 s32 last_temperature;
984 /* Scan related variables */
985 unsigned long last_scan_jiffies;
986 unsigned long next_scan_jiffies;
987 unsigned long scan_start;
988 unsigned long scan_pass_start;
989 unsigned long scan_start_tsf;
993 u8 direct_ssid[IW_ESSID_MAX_SIZE];
994 struct iwl4965_scan_cmd *scan;
997 spinlock_t lock; /* protect general shared data */
998 spinlock_t hcmd_lock; /* protect hcmd */
1001 /* basic pci-network driver stuff */
1002 struct pci_dev *pci_dev;
1004 /* pci hardware address support */
1005 void __iomem *hw_base;
1007 /* uCode images, save to reload in case of failure */
1008 struct fw_desc ucode_code; /* runtime inst */
1009 struct fw_desc ucode_data; /* runtime data original */
1010 struct fw_desc ucode_data_backup; /* runtime data save/restore */
1011 struct fw_desc ucode_init; /* initialization inst */
1012 struct fw_desc ucode_init_data; /* initialization data */
1013 struct fw_desc ucode_boot; /* bootstrap inst */
1016 struct iwl4965_rxon_time_cmd rxon_timing;
1018 /* We declare this const so it can only be
1019 * changed via explicit cast within the
1020 * routines that actually update the physical
1022 const struct iwl4965_rxon_cmd active_rxon;
1023 struct iwl4965_rxon_cmd staging_rxon;
1025 int error_recovering;
1026 struct iwl4965_rxon_cmd recovery_rxon;
1028 /* 1st responses from initialize and runtime uCode images.
1029 * 4965's initialize alive response contains some calibration data. */
1030 struct iwl4965_init_alive_resp card_alive_init;
1031 struct iwl4965_alive_resp card_alive;
1032 #ifdef CONFIG_IWLWIFI_RFKILL
1033 struct iwl_rfkill_mngr rfkill_mngr;
1036 #ifdef CONFIG_IWLWIFI_LEDS
1037 struct iwl4965_led led[IWL_LED_TRG_MAX];
1038 unsigned long last_blink_time;
1045 u16 active_rate_basic;
1047 u8 assoc_station_added;
1048 u8 use_ant_b_for_management_frame; /* Tx antenna selection */
1050 #ifdef CONFIG_IWLWIFI_RUN_TIME_CALIB
1051 struct iwl_sensitivity_data sensitivity_data;
1052 struct iwl_chain_noise_data chain_noise_data;
1053 __le16 sensitivity_tbl[HD_TABLE_SIZE];
1054 #endif /*CONFIG_IWLWIFI_RUN_TIME_CALIB*/
1056 #ifdef CONFIG_IWL4965_HT
1057 struct iwl_ht_info current_ht_config;
1059 u8 last_phy_res[100];
1061 /* Rate scaling data */
1062 struct iwl4965_lq_mngr lq_mngr;
1064 /* Rate scaling data */
1065 s8 data_retry_limit;
1068 wait_queue_head_t wait_command_queue;
1070 int activity_timer_active;
1072 /* Rx and Tx DMA processing queues */
1073 struct iwl4965_rx_queue rxq;
1074 struct iwl4965_tx_queue txq[IWL_MAX_NUM_QUEUES];
1075 unsigned long txq_ctx_active_msk;
1076 struct iwl4965_kw kw; /* keep warm address */
1077 u32 scd_base_addr; /* scheduler sram base address */
1079 unsigned long status;
1081 int last_rx_rssi; /* From Rx packet statisitics */
1082 int last_rx_noise; /* From beacon statistics */
1084 /* counts mgmt, ctl, and data packets */
1085 struct traffic_stats {
1088 } tx_stats[3], rx_stats[3];
1090 struct iwl_power_mgr power_data;
1092 struct iwl4965_notif_statistics statistics;
1093 unsigned long last_statistics_time;
1095 /* context information */
1096 u8 essid[IW_ESSID_MAX_SIZE];
1104 u8 mac_addr[ETH_ALEN];
1106 /*station table variables */
1107 spinlock_t sta_lock;
1109 struct iwl4965_station_entry stations[IWL_STATION_COUNT];
1110 struct iwl_wep_key wep_keys[WEP_KEYS_MAX];
1113 unsigned long ucode_key_table;
1115 /* Indication if ieee80211_ops->open has been called */
1118 u8 mac80211_registered;
1120 u32 notif_missed_beacons;
1122 /* Rx'd packet timing information */
1123 u32 last_beacon_time;
1126 /* Duplicate packet detection */
1129 unsigned long last_packet_time;
1131 /* Hash table for finding stations in IBSS network */
1132 struct list_head ibss_mac_hash[IWL_IBSS_MAC_HASH_SIZE];
1136 struct iwl_eeprom_calib_info *calib_info;
1138 enum ieee80211_if_types iw_mode;
1140 struct sk_buff *ibss_beacon;
1142 /* Last Rx'd beacon timestamp */
1145 struct ieee80211_vif *vif;
1147 struct iwl_hw_params hw_params;
1148 /* driver/uCode shared Tx Byte Counts and Rx status */
1150 /* Physical Pointer to Tx Byte Counts and Rx status */
1151 dma_addr_t shared_phys;
1153 /* Current association information needed to configure the
1156 u16 assoc_capability;
1159 struct iwl4965_qos_info qos_data;
1161 struct workqueue_struct *workqueue;
1163 struct work_struct up;
1164 struct work_struct restart;
1165 struct work_struct calibrated_work;
1166 struct work_struct scan_completed;
1167 struct work_struct rx_replenish;
1168 struct work_struct rf_kill;
1169 struct work_struct abort_scan;
1170 struct work_struct update_link_led;
1171 struct work_struct auth_work;
1172 struct work_struct report_work;
1173 struct work_struct request_scan;
1174 struct work_struct beacon_update;
1176 struct tasklet_struct irq_tasklet;
1178 struct delayed_work init_alive_start;
1179 struct delayed_work alive_start;
1180 struct delayed_work activity_timer;
1181 struct delayed_work thermal_periodic;
1182 struct delayed_work gather_stats;
1183 struct delayed_work scan_check;
1184 struct delayed_work post_associate;
1186 #define IWL_DEFAULT_TX_POWER 0x0F
1187 s8 user_txpower_limit;
1188 s8 max_channel_txpower_limit;
1194 #ifdef CONFIG_IWLWIFI_DEBUG
1195 /* debugging info */
1197 atomic_t restrict_refcnt;
1198 #ifdef CONFIG_IWLWIFI_DEBUGFS
1200 struct iwl_debugfs *dbgfs;
1201 #endif /* CONFIG_IWLWIFI_DEBUGFS */
1202 #endif /* CONFIG_IWLWIFI_DEBUG */
1204 struct work_struct txpower_work;
1205 #ifdef CONFIG_IWL4965_RUN_TIME_CALIB
1206 struct work_struct sensitivity_work;
1208 struct timer_list statistics_periodic;
1211 static inline int iwl_is_associated(struct iwl_priv *priv)
1213 return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
1216 static inline int is_channel_valid(const struct iwl_channel_info *ch_info)
1218 if (ch_info == NULL)
1220 return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
1223 static inline int is_channel_radar(const struct iwl_channel_info *ch_info)
1225 return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
1228 static inline u8 is_channel_a_band(const struct iwl_channel_info *ch_info)
1230 return ch_info->band == IEEE80211_BAND_5GHZ;
1233 static inline u8 is_channel_bg_band(const struct iwl_channel_info *ch_info)
1235 return ch_info->band == IEEE80211_BAND_2GHZ;
1238 static inline int is_channel_passive(const struct iwl_channel_info *ch)
1240 return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
1243 static inline int is_channel_ibss(const struct iwl_channel_info *ch)
1245 return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
1248 extern const struct iwl_channel_info *iwl_get_channel_info(
1249 const struct iwl_priv *priv, enum ieee80211_band band, u16 channel);
1251 /* Requires full declaration of iwl_priv before including */
1253 #endif /* __iwl4965_4965_h__ */