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-dev.h) for driver implementation definitions.
28 * Please use iwl-commands.h for uCode API definitions.
29 * Please use iwl-4965-hw.h for hardware-related definitions.
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;
51 extern struct iwl_cfg iwl5300_agn_cfg;
52 extern struct iwl_cfg iwl5100_agn_cfg;
53 extern struct iwl_cfg iwl5350_agn_cfg;
55 /* Change firmware file name, using "-" and incrementing number,
56 * *only* when uCode interface or architecture changes so that it
57 * is not compatible with earlier drivers.
58 * This number will also appear in << 8 position of 1st dword of uCode file */
59 #define IWL4965_UCODE_API "-1"
61 /* CT-KILL constants */
62 #define CT_KILL_THRESHOLD 110 /* in Celsius */
64 /* Default noise level to report when noise measurement is not available.
65 * This may be because we're:
66 * 1) Not associated (4965, no beacon statistics being sent to driver)
67 * 2) Scanning (noise measurement does not apply to associated channel)
68 * 3) Receiving CCK (3945 delivers noise info only for OFDM frames)
69 * Use default noise value of -127 ... this is below the range of measurable
70 * Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
71 * Also, -127 works better than 0 when averaging frames with/without
72 * noise info (e.g. averaging might be done in app); measured dBm values are
73 * always negative ... using a negative value as the default keeps all
74 * averages within an s8's (used in some apps) range of negative values. */
75 #define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
78 * RTS threshold here is total size [2347] minus 4 FCS bytes
80 * a value of 0 means RTS on all data/management packets
81 * a value > max MSDU size means no RTS
82 * else RTS for data/management frames where MPDU is larger
85 #define DEFAULT_RTS_THRESHOLD 2347U
86 #define MIN_RTS_THRESHOLD 0U
87 #define MAX_RTS_THRESHOLD 2347U
88 #define MAX_MSDU_SIZE 2304U
89 #define MAX_MPDU_SIZE 2346U
90 #define DEFAULT_BEACON_INTERVAL 100U
91 #define DEFAULT_SHORT_RETRY_LIMIT 7U
92 #define DEFAULT_LONG_RETRY_LIMIT 4U
94 struct iwl_rx_mem_buffer {
97 struct list_head list;
101 * Generic queue structure
103 * Contains common data for Rx and Tx queues
106 int n_bd; /* number of BDs in this queue */
107 int write_ptr; /* 1-st empty entry (index) host_w*/
108 int read_ptr; /* last used entry (index) host_r*/
109 dma_addr_t dma_addr; /* physical addr for BD's */
110 int n_window; /* safe queue window */
112 int low_mark; /* low watermark, resume queue if free
113 * space more than this */
114 int high_mark; /* high watermark, stop queue if free
115 * space less than this */
116 } __attribute__ ((packed));
118 #define MAX_NUM_OF_TBS (20)
120 /* One for each TFD */
122 struct sk_buff *skb[MAX_NUM_OF_TBS];
126 * struct iwl_tx_queue - Tx Queue for DMA
127 * @q: generic Rx/Tx queue descriptor
128 * @bd: base of circular buffer of TFDs
129 * @cmd: array of command/Tx buffers
130 * @dma_addr_cmd: physical address of cmd/tx buffer array
131 * @txb: array of per-TFD driver data
132 * @need_update: indicates need to update read/write index
133 * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
135 * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
136 * descriptors) and required locking structures.
138 struct iwl_tx_queue {
140 struct iwl_tfd_frame *bd;
142 dma_addr_t dma_addr_cmd;
143 struct iwl_tx_info *txb;
149 #define IWL_NUM_SCAN_RATES (2)
151 struct iwl4965_channel_tgd_info {
156 struct iwl4965_channel_tgh_info {
160 /* current Tx power values to use, one for each rate for each channel.
161 * requested power is limited by:
162 * -- regulatory EEPROM limits for this channel
163 * -- hardware capabilities (clip-powers)
164 * -- spectrum management
165 * -- user preference (e.g. iwconfig)
166 * when requested power is set, base power index must also be set. */
167 struct iwl4965_channel_power_info {
168 struct iwl4965_tx_power tpc; /* actual radio and DSP gain settings */
169 s8 power_table_index; /* actual (compenst'd) index into gain table */
170 s8 base_power_index; /* gain index for power at factory temp. */
171 s8 requested_power; /* power (dBm) requested for this chnl/rate */
174 /* current scan Tx power values to use, one for each scan rate for each
176 struct iwl4965_scan_power_info {
177 struct iwl4965_tx_power tpc; /* actual radio and DSP gain settings */
178 s8 power_table_index; /* actual (compenst'd) index into gain table */
179 s8 requested_power; /* scan pwr (dBm) requested for chnl/rate */
183 * One for each channel, holds all channel setup data
184 * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
187 #define IWL4965_MAX_RATE (33)
189 struct iwl_channel_info {
190 struct iwl4965_channel_tgd_info tgd;
191 struct iwl4965_channel_tgh_info tgh;
192 struct iwl_eeprom_channel eeprom; /* EEPROM regulatory limit */
193 struct iwl_eeprom_channel fat_eeprom; /* EEPROM regulatory limit for
196 u8 channel; /* channel number */
197 u8 flags; /* flags copied from EEPROM */
198 s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
199 s8 curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) limit */
200 s8 min_power; /* always 0 */
201 s8 scan_power; /* (dBm) regul. eeprom, direct scans, any rate */
203 u8 group_index; /* 0-4, maps channel to group1/2/3/4/5 */
204 u8 band_index; /* 0-4, maps channel to band1/2/3/4/5 */
205 enum ieee80211_band band;
207 /* Radio/DSP gain settings for each "normal" data Tx rate.
208 * These include, in addition to RF and DSP gain, a few fields for
209 * remembering/modifying gain settings (indexes). */
210 struct iwl4965_channel_power_info power_info[IWL4965_MAX_RATE];
212 /* FAT channel info */
213 s8 fat_max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
214 s8 fat_curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) */
215 s8 fat_min_power; /* always 0 */
216 s8 fat_scan_power; /* (dBm) eeprom, direct scans, any rate */
217 u8 fat_flags; /* flags copied from EEPROM */
218 u8 fat_extension_channel; /* HT_IE_EXT_CHANNEL_* */
220 /* Radio/DSP gain settings for each scan rate, for directed scans. */
221 struct iwl4965_scan_power_info scan_pwr_info[IWL_NUM_SCAN_RATES];
224 struct iwl4965_clip_group {
225 /* maximum power level to prevent clipping for each rate, derived by
226 * us from this band's saturation power in EEPROM */
227 const s8 clip_powers[IWL_MAX_RATES];
230 #include "iwl-4965-rs.h"
232 #define IWL_TX_FIFO_AC0 0
233 #define IWL_TX_FIFO_AC1 1
234 #define IWL_TX_FIFO_AC2 2
235 #define IWL_TX_FIFO_AC3 3
236 #define IWL_TX_FIFO_HCCA_1 5
237 #define IWL_TX_FIFO_HCCA_2 6
238 #define IWL_TX_FIFO_NONE 7
240 /* Minimum number of queues. MAX_NUM is defined in hw specific files */
241 #define IWL_MIN_NUM_QUEUES 4
243 /* Power management (not Tx power) structures */
250 #define IEEE80211_DATA_LEN 2304
251 #define IEEE80211_4ADDR_LEN 30
252 #define IEEE80211_HLEN (IEEE80211_4ADDR_LEN)
253 #define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
257 struct ieee80211_hdr frame;
258 struct iwl4965_tx_beacon_cmd beacon;
259 u8 raw[IEEE80211_FRAME_LEN];
262 struct list_head list;
265 #define SEQ_TO_QUEUE(x) ((x >> 8) & 0xbf)
266 #define QUEUE_TO_SEQ(x) ((x & 0xbf) << 8)
267 #define SEQ_TO_INDEX(x) ((u8)(x & 0xff))
268 #define INDEX_TO_SEQ(x) ((u8)(x & 0xff))
269 #define SEQ_HUGE_FRAME (0x4000)
270 #define SEQ_RX_FRAME __constant_cpu_to_le16(0x8000)
271 #define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
272 #define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
273 #define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
276 /* CMD_SIZE_NORMAL = 0, */
277 CMD_SIZE_HUGE = (1 << 0),
279 CMD_ASYNC = (1 << 1),
280 /* CMD_NO_SKB = 0, */
281 CMD_WANT_SKB = (1 << 2),
287 struct iwl_cmd_meta {
288 struct iwl_cmd_meta *source;
291 int (*callback)(struct iwl_priv *priv,
292 struct iwl_cmd *cmd, struct sk_buff *skb);
293 } __attribute__ ((packed)) u;
295 /* The CMD_SIZE_HUGE flag bit indicates that the command
296 * structure is stored at the end of the shared queue memory. */
299 } __attribute__ ((packed));
301 #define IWL_CMD_MAX_PAYLOAD 320
306 * For allocation of the command and tx queues, this establishes the overall
307 * size of the largest command we send to uCode, except for a scan command
308 * (which is relatively huge; space is allocated separately).
311 struct iwl_cmd_meta meta; /* driver data */
312 struct iwl_cmd_header hdr; /* uCode API */
314 struct iwl_addsta_cmd addsta;
315 struct iwl4965_led_cmd led;
320 struct iwl4965_bt_cmd bt;
321 struct iwl4965_rxon_time_cmd rxon_time;
322 struct iwl4965_powertable_cmd powertable;
323 struct iwl4965_qosparam_cmd qosparam;
324 struct iwl_tx_cmd tx;
325 struct iwl4965_tx_beacon_cmd tx_beacon;
326 struct iwl4965_rxon_assoc_cmd rxon_assoc;
327 struct iwl_rem_sta_cmd rm_sta;
329 u8 payload[IWL_CMD_MAX_PAYLOAD];
330 } __attribute__ ((packed)) cmd;
331 } __attribute__ ((packed));
333 struct iwl_host_cmd {
336 struct iwl_cmd_meta meta;
340 #define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_cmd) - \
341 sizeof(struct iwl_cmd_meta))
344 * RX related structures and functions
346 #define RX_FREE_BUFFERS 64
347 #define RX_LOW_WATERMARK 8
349 #define SUP_RATE_11A_MAX_NUM_CHANNELS 8
350 #define SUP_RATE_11B_MAX_NUM_CHANNELS 4
351 #define SUP_RATE_11G_MAX_NUM_CHANNELS 12
354 * struct iwl_rx_queue - Rx queue
355 * @processed: Internal index to last handled Rx packet
356 * @read: Shared index to newest available Rx buffer
357 * @write: Shared index to oldest written Rx packet
358 * @free_count: Number of pre-allocated buffers in rx_free
359 * @rx_free: list of free SKBs for use
360 * @rx_used: List of Rx buffers with no SKB
361 * @need_update: flag to indicate we need to update read/write index
363 * NOTE: rx_free and rx_used are used as a FIFO for iwl_rx_mem_buffers
365 struct iwl_rx_queue {
368 struct iwl_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
369 struct iwl_rx_mem_buffer *queue[RX_QUEUE_SIZE];
374 struct list_head rx_free;
375 struct list_head rx_used;
380 #define IWL_SUPPORTED_RATES_IE_LEN 8
382 #define SCAN_INTERVAL 100
384 #define MAX_A_CHANNELS 252
385 #define MIN_A_CHANNELS 7
387 #define MAX_B_CHANNELS 14
388 #define MIN_B_CHANNELS 1
390 #define MAX_TID_COUNT 9
392 #define IWL_INVALID_RATE 0xFF
393 #define IWL_INVALID_VALUE -1
396 * struct iwl_ht_agg -- aggregation status while waiting for block-ack
397 * @txq_id: Tx queue used for Tx attempt
398 * @frame_count: # frames attempted by Tx command
399 * @wait_for_ba: Expect block-ack before next Tx reply
400 * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window
401 * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window
402 * @bitmap1: High order, one bit for each frame pending ACK in Tx window
403 * @rate_n_flags: Rate at which Tx was attempted
405 * If REPLY_TX indicates that aggregation was attempted, driver must wait
406 * for block ack (REPLY_COMPRESSED_BA). This struct stores tx reply info
407 * until block ack arrives.
416 #define IWL_AGG_OFF 0
418 #define IWL_EMPTYING_HW_QUEUE_ADDBA 2
419 #define IWL_EMPTYING_HW_QUEUE_DELBA 3
424 struct iwl_tid_data {
427 struct iwl_ht_agg agg;
431 enum ieee80211_key_alg alg;
437 union iwl4965_ht_rate_supp {
445 #define CFG_HT_RX_AMPDU_FACTOR_DEF (0x3)
446 #define CFG_HT_MPDU_DENSITY_2USEC (0x5)
447 #define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_2USEC
450 /* self configuration data */
452 u8 supported_chan_width;
455 u8 sgf; /* HT_SHORT_GI_* short guard interval */
460 /* BSS related data */
462 u8 extension_chan_offset;
465 u8 non_GF_STA_present;
468 union iwl4965_qos_capabity {
470 u8 edca_count:4; /* bit 0-3 */
471 u8 q_ack:1; /* bit 4 */
472 u8 queue_request:1; /* bit 5 */
473 u8 txop_request:1; /* bit 6 */
474 u8 reserved:1; /* bit 7 */
477 u8 acvo_APSD:1; /* bit 0 */
478 u8 acvi_APSD:1; /* bit 1 */
479 u8 ac_bk_APSD:1; /* bit 2 */
480 u8 ac_be_APSD:1; /* bit 3 */
481 u8 q_ack:1; /* bit 4 */
482 u8 max_len:2; /* bit 5-6 */
483 u8 more_data_ack:1; /* bit 7 */
489 struct iwl4965_qos_info {
492 union iwl4965_qos_capabity qos_cap;
493 struct iwl4965_qosparam_cmd def_qos_parm;
496 #define STA_PS_STATUS_WAKE 0
497 #define STA_PS_STATUS_SLEEP 1
499 struct iwl_station_entry {
500 struct iwl_addsta_cmd sta;
501 struct iwl_tid_data tid[MAX_TID_COUNT];
504 struct iwl_hw_key keyinfo;
507 /* one for each uCode image (inst/data, boot/init/runtime) */
509 void *v_addr; /* access by driver */
510 dma_addr_t p_addr; /* access by card's busmaster DMA */
514 /* uCode file layout */
515 struct iwl4965_ucode {
516 __le32 ver; /* major/minor/subminor */
517 __le32 inst_size; /* bytes of runtime instructions */
518 __le32 data_size; /* bytes of runtime data */
519 __le32 init_size; /* bytes of initialization instructions */
520 __le32 init_data_size; /* bytes of initialization data */
521 __le32 boot_size; /* bytes of bootstrap instructions */
522 u8 data[0]; /* data in same order as "size" elements */
525 #define IWL_IBSS_MAC_HASH_SIZE 32
527 struct iwl4965_ibss_seq {
531 unsigned long packet_time;
532 struct list_head list;
535 struct iwl_sensitivity_ranges {
542 u16 auto_corr_min_ofdm;
543 u16 auto_corr_min_ofdm_mrc;
544 u16 auto_corr_min_ofdm_x1;
545 u16 auto_corr_min_ofdm_mrc_x1;
547 u16 auto_corr_max_ofdm;
548 u16 auto_corr_max_ofdm_mrc;
549 u16 auto_corr_max_ofdm_x1;
550 u16 auto_corr_max_ofdm_mrc_x1;
552 u16 auto_corr_max_cck;
553 u16 auto_corr_max_cck_mrc;
554 u16 auto_corr_min_cck;
555 u16 auto_corr_min_cck_mrc;
559 #define IWL_FAT_CHANNEL_52 BIT(IEEE80211_BAND_5GHZ)
562 * struct iwl_hw_params
563 * @max_txq_num: Max # Tx queues supported
564 * @tx/rx_chains_num: Number of TX/RX chains
565 * @valid_tx/rx_ant: usable antennas
566 * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
567 * @max_rxq_log: Log-base-2 of max_rxq_size
568 * @rx_buf_size: Rx buffer size
571 * @fat_channel: is 40MHz width possible in band 2.4
572 * BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ)
573 * @sw_crypto: 0 for hw, 1 for sw
574 * @max_xxx_size: for ucode uses
575 * @ct_kill_threshold: temperature threshold
576 * @struct iwl_sensitivity_ranges: range of sensitivity values
577 * @first_ampdu_q: first HW queue available for ampdu
579 struct iwl_hw_params {
596 u32 ct_kill_threshold; /* value in hw-dependent units */
597 const struct iwl_sensitivity_ranges *sens;
601 #define HT_SHORT_GI_20MHZ (1 << 0)
602 #define HT_SHORT_GI_40MHZ (1 << 1)
605 #define IWL_RX_HDR(x) ((struct iwl4965_rx_frame_hdr *)(\
606 x->u.rx_frame.stats.payload + \
607 x->u.rx_frame.stats.phy_count))
608 #define IWL_RX_END(x) ((struct iwl4965_rx_frame_end *)(\
609 IWL_RX_HDR(x)->payload + \
610 le16_to_cpu(IWL_RX_HDR(x)->len)))
611 #define IWL_RX_STATS(x) (&x->u.rx_frame.stats)
612 #define IWL_RX_DATA(x) (IWL_RX_HDR(x)->payload)
615 /******************************************************************************
617 * Functions implemented in iwl-base.c which are forward declared here
620 *****************************************************************************/
621 struct iwl_addsta_cmd;
622 extern int iwl_send_add_sta(struct iwl_priv *priv,
623 struct iwl_addsta_cmd *sta, u8 flags);
624 u8 iwl_add_station_flags(struct iwl_priv *priv, const u8 *addr, int is_ap,
625 u8 flags, struct ieee80211_ht_info *ht_info);
626 extern int iwl4965_is_network_packet(struct iwl_priv *priv,
627 struct ieee80211_hdr *header);
628 extern int iwl4965_power_init_handle(struct iwl_priv *priv);
629 extern void iwl4965_handle_data_packet_monitor(struct iwl_priv *priv,
630 struct iwl_rx_mem_buffer *rxb,
631 void *data, short len,
632 struct ieee80211_rx_status *stats,
634 extern int iwl4965_is_duplicate_packet(struct iwl_priv *priv,
635 struct ieee80211_hdr *header);
636 extern int iwl4965_calc_db_from_ratio(int sig_ratio);
637 extern int iwl4965_calc_sig_qual(int rssi_dbm, int noise_dbm);
638 extern unsigned int iwl4965_fill_beacon_frame(struct iwl_priv *priv,
639 struct ieee80211_hdr *hdr,
640 const u8 *dest, int left);
641 extern void iwl4965_update_chain_flags(struct iwl_priv *priv);
642 int iwl4965_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src);
644 int iwl4965_init_geos(struct iwl_priv *priv);
645 void iwl4965_free_geos(struct iwl_priv *priv);
647 extern const u8 iwl_bcast_addr[ETH_ALEN];
648 int iwl4965_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd);
651 * Currently used by iwl-3945-rs... look at restructuring so that it doesn't
652 * call this... todo... fix that.
654 extern u8 iwl4965_sync_station(struct iwl_priv *priv, int sta_id,
655 u16 tx_rate, u8 flags);
657 /******************************************************************************
659 * Functions implemented in iwl-[34]*.c which are forward declared here
660 * for use by iwl-base.c
662 * NOTE: The implementation of these functions are hardware specific
663 * which is why they are in the hardware specific files (vs. iwl-base.c)
665 * Naming convention --
666 * iwl4965_ <-- Its part of iwlwifi (should be changed to iwl4965_)
667 * iwl4965_hw_ <-- Hardware specific (implemented in iwl-XXXX.c by all HW)
668 * iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
669 * iwl4965_bg_ <-- Called from work queue context
670 * iwl4965_mac_ <-- mac80211 callback
672 ****************************************************************************/
673 extern void iwl4965_hw_setup_deferred_work(struct iwl_priv *priv);
674 extern void iwl4965_hw_cancel_deferred_work(struct iwl_priv *priv);
675 extern int iwl4965_hw_set_hw_params(struct iwl_priv *priv);
676 extern int iwl_rxq_stop(struct iwl_priv *priv);
677 extern void iwl_txq_ctx_stop(struct iwl_priv *priv);
678 extern int iwl4965_hw_get_temperature(struct iwl_priv *priv);
679 extern unsigned int iwl4965_hw_get_beacon_cmd(struct iwl_priv *priv,
680 struct iwl_frame *frame, u8 rate);
681 extern void iwl4965_hw_build_tx_cmd_rate(struct iwl_priv *priv,
683 struct ieee80211_tx_info *info,
684 struct ieee80211_hdr *hdr,
685 int sta_id, int tx_id);
686 extern void iwl4965_hw_rx_statistics(struct iwl_priv *priv,
687 struct iwl_rx_mem_buffer *rxb);
688 extern void iwl4965_disable_events(struct iwl_priv *priv);
689 extern int iwl4965_get_temperature(const struct iwl_priv *priv);
690 extern void iwl4965_rx_reply_rx(struct iwl_priv *priv,
691 struct iwl_rx_mem_buffer *rxb);
694 * iwl_find_station - Find station id for a given BSSID
695 * @bssid: MAC address of station ID to find
697 * NOTE: This should not be hardware specific but the code has
698 * not yet been merged into a single common layer for managing the
701 extern u8 iwl_find_station(struct iwl_priv *priv, const u8 *bssid);
703 extern int iwl4965_hw_channel_switch(struct iwl_priv *priv, u16 channel);
704 extern int iwl_queue_space(const struct iwl_queue *q);
705 static inline int iwl_queue_used(const struct iwl_queue *q, int i)
707 return q->write_ptr > q->read_ptr ?
708 (i >= q->read_ptr && i < q->write_ptr) :
709 !(i < q->read_ptr && i >= q->write_ptr);
713 static inline u8 get_cmd_index(struct iwl_queue *q, u32 index, int is_huge)
715 /* This is for scan command, the big buffer at end of command array */
717 return q->n_window; /* must be power of 2 */
719 /* Otherwise, use normal size buffers */
720 return index & (q->n_window - 1);
726 extern int iwl4965_radio_kill_sw(struct iwl_priv *priv, int disable_radio);
728 * Forward declare iwl-4965.c functions for iwl-base.c
730 extern int iwl4965_tx_queue_update_wr_ptr(struct iwl_priv *priv,
731 struct iwl_tx_queue *txq,
733 extern int iwl4965_alive_notify(struct iwl_priv *priv);
734 extern void iwl4965_update_rate_scaling(struct iwl_priv *priv, u8 mode);
735 extern void iwl4965_rf_kill_ct_config(struct iwl_priv *priv);
736 extern void iwl4965_hwrate_to_tx_control(struct iwl_priv *priv,
738 struct ieee80211_tx_info *info);
740 extern void iwl4965_init_ht_hw_capab(const struct iwl_priv *priv,
741 struct ieee80211_ht_info *ht_info,
742 enum ieee80211_band band);
743 int iwl4965_mac_ampdu_action(struct ieee80211_hw *hw,
744 enum ieee80211_ampdu_mlme_action action,
745 const u8 *addr, u16 tid, u16 *ssn);
746 int iwl4965_check_empty_hw_queue(struct iwl_priv *priv, int sta_id,
749 /* Structures, enum, and defines specific to the 4965 */
751 #define IWL_KW_SIZE 0x1000 /*4k */
759 #define IWL_CHANNEL_WIDTH_20MHZ 0
760 #define IWL_CHANNEL_WIDTH_40MHZ 1
762 #define IWL_MIMO_PS_STATIC 0
763 #define IWL_MIMO_PS_NONE 3
764 #define IWL_MIMO_PS_DYNAMIC 1
765 #define IWL_MIMO_PS_INVALID 2
767 #define IWL_OPERATION_MODE_AUTO 0
768 #define IWL_OPERATION_MODE_HT_ONLY 1
769 #define IWL_OPERATION_MODE_MIXED 2
770 #define IWL_OPERATION_MODE_20MHZ 3
772 #define IWL_TX_CRC_SIZE 4
773 #define IWL_TX_DELIMITER_SIZE 4
775 #define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
777 struct iwl4965_lq_mngr {
781 u8 *next_higher_rate;
784 unsigned long stamp_last;
790 /* Sensitivity and chain noise calibration */
791 #define INTERFERENCE_DATA_AVAILABLE __constant_cpu_to_le32(1)
792 #define INITIALIZATION_VALUE 0xFFFF
793 #define CAL_NUM_OF_BEACONS 20
794 #define MAXIMUM_ALLOWED_PATHLOSS 15
796 #define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
798 #define MAX_FA_OFDM 50
799 #define MIN_FA_OFDM 5
800 #define MAX_FA_CCK 50
803 #define AUTO_CORR_STEP_OFDM 1
805 #define AUTO_CORR_STEP_CCK 3
806 #define AUTO_CORR_MAX_TH_CCK 160
809 #define NRG_STEP_CCK 2
811 #define MAX_NUMBER_CCK_NO_FA 100
813 #define AUTO_CORR_CCK_MIN_VAL_DEF (125)
818 #define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
819 #define ALL_BAND_FILTER 0xFF00
820 #define IN_BAND_FILTER 0xFF
821 #define MIN_AVERAGE_NOISE_MAX_VALUE 0xFFFFFFFF
823 #define NRG_NUM_PREV_STAT_L 20
824 #define NUM_RX_CHAINS 3
826 enum iwl4965_false_alarm_state {
829 IWL_FA_GOOD_RANGE = 2,
832 enum iwl4965_chain_noise_state {
833 IWL_CHAIN_NOISE_ALIVE = 0, /* must be 0 */
834 IWL_CHAIN_NOISE_ACCUMULATE = 1,
835 IWL_CHAIN_NOISE_CALIBRATED = 2,
838 enum iwl4965_calib_enabled_state {
839 IWL_CALIB_DISABLED = 0, /* must be 0 */
840 IWL_CALIB_ENABLED = 1,
843 struct statistics_general_data {
844 u32 beacon_silence_rssi_a;
845 u32 beacon_silence_rssi_b;
846 u32 beacon_silence_rssi_c;
852 struct iwl_calib_results {
854 void *tx_iq_perd_res;
857 u32 tx_iq_perd_res_len;
867 /* Sensitivity calib data */
868 struct iwl_sensitivity_data {
870 u32 auto_corr_ofdm_mrc;
871 u32 auto_corr_ofdm_x1;
872 u32 auto_corr_ofdm_mrc_x1;
874 u32 auto_corr_cck_mrc;
876 u32 last_bad_plcp_cnt_ofdm;
877 u32 last_fa_cnt_ofdm;
878 u32 last_bad_plcp_cnt_cck;
884 u8 nrg_silence_rssi[NRG_NUM_PREV_STAT_L];
889 s32 nrg_auto_corr_silence_diff;
890 u32 num_in_cck_no_fa;
894 /* Chain noise (differential Rx gain) calib data */
895 struct iwl_chain_noise_data {
904 u8 disconn_array[NUM_RX_CHAINS];
905 u8 delta_gain_code[NUM_RX_CHAINS];
909 #define EEPROM_SEM_TIMEOUT 10 /* milliseconds */
910 #define EEPROM_SEM_RETRY_LIMIT 1000 /* number of attempts (not time) */
913 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
916 MEASUREMENT_READY = (1 << 0),
917 MEASUREMENT_ACTIVE = (1 << 1),
922 #define IWL_MAX_NUM_QUEUES 20 /* FIXME: do dynamic allocation */
926 /* ieee device used by generic ieee processing code */
927 struct ieee80211_hw *hw;
928 struct ieee80211_channel *ieee_channels;
929 struct ieee80211_rate *ieee_rates;
932 /* temporary frame storage list */
933 struct list_head free_frames;
936 enum ieee80211_band band;
940 void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv,
941 struct iwl_rx_mem_buffer *rxb);
943 struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
945 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
946 /* spectrum measurement report caching */
947 struct iwl4965_spectrum_notification measure_report;
948 u8 measurement_status;
950 /* ucode beacon time */
951 u32 ucode_beacon_time;
953 /* we allocate array of iwl4965_channel_info for NIC's valid channels.
954 * Access via channel # using indirect index array */
955 struct iwl_channel_info *channel_info; /* channel info array */
956 u8 channel_count; /* # of channels */
958 /* each calibration channel group in the EEPROM has a derived
959 * clip setting for each rate. */
960 const struct iwl4965_clip_group clip_groups[5];
962 /* thermal calibration */
963 s32 temperature; /* degrees Kelvin */
964 s32 last_temperature;
966 /* init calibration results */
967 struct iwl_calib_results calib_results;
969 /* Scan related variables */
970 unsigned long last_scan_jiffies;
971 unsigned long next_scan_jiffies;
972 unsigned long scan_start;
973 unsigned long scan_pass_start;
974 unsigned long scan_start_tsf;
978 u8 direct_ssid[IW_ESSID_MAX_SIZE];
979 struct iwl4965_scan_cmd *scan;
982 spinlock_t lock; /* protect general shared data */
983 spinlock_t hcmd_lock; /* protect hcmd */
986 /* basic pci-network driver stuff */
987 struct pci_dev *pci_dev;
989 /* pci hardware address support */
990 void __iomem *hw_base;
995 /* uCode images, save to reload in case of failure */
996 struct fw_desc ucode_code; /* runtime inst */
997 struct fw_desc ucode_data; /* runtime data original */
998 struct fw_desc ucode_data_backup; /* runtime data save/restore */
999 struct fw_desc ucode_init; /* initialization inst */
1000 struct fw_desc ucode_init_data; /* initialization data */
1001 struct fw_desc ucode_boot; /* bootstrap inst */
1002 enum ucode_type ucode_type;
1003 u8 ucode_write_complete; /* the image write is complete */
1006 struct iwl4965_rxon_time_cmd rxon_timing;
1008 /* We declare this const so it can only be
1009 * changed via explicit cast within the
1010 * routines that actually update the physical
1012 const struct iwl_rxon_cmd active_rxon;
1013 struct iwl_rxon_cmd staging_rxon;
1015 int error_recovering;
1016 struct iwl_rxon_cmd recovery_rxon;
1018 /* 1st responses from initialize and runtime uCode images.
1019 * 4965's initialize alive response contains some calibration data. */
1020 struct iwl_init_alive_resp card_alive_init;
1021 struct iwl_alive_resp card_alive;
1022 #ifdef CONFIG_IWLWIFI_RFKILL
1023 struct iwl_rfkill_mngr rfkill_mngr;
1026 #ifdef CONFIG_IWLWIFI_LEDS
1027 struct iwl4965_led led[IWL_LED_TRG_MAX];
1028 unsigned long last_blink_time;
1035 u16 active_rate_basic;
1037 u8 assoc_station_added;
1038 u8 use_ant_b_for_management_frame; /* Tx antenna selection */
1040 struct iwl_sensitivity_data sensitivity_data;
1041 struct iwl_chain_noise_data chain_noise_data;
1042 __le16 sensitivity_tbl[HD_TABLE_SIZE];
1044 struct iwl_ht_info current_ht_config;
1045 u8 last_phy_res[100];
1047 /* Rate scaling data */
1048 struct iwl4965_lq_mngr lq_mngr;
1050 /* Rate scaling data */
1051 s8 data_retry_limit;
1054 wait_queue_head_t wait_command_queue;
1056 int activity_timer_active;
1058 /* Rx and Tx DMA processing queues */
1059 struct iwl_rx_queue rxq;
1060 struct iwl_tx_queue txq[IWL_MAX_NUM_QUEUES];
1061 unsigned long txq_ctx_active_msk;
1062 struct iwl_kw kw; /* keep warm address */
1063 u32 scd_base_addr; /* scheduler sram base address */
1065 unsigned long status;
1067 int last_rx_rssi; /* From Rx packet statisitics */
1068 int last_rx_noise; /* From beacon statistics */
1070 /* counts mgmt, ctl, and data packets */
1071 struct traffic_stats {
1074 } tx_stats[3], rx_stats[3];
1076 struct iwl_power_mgr power_data;
1078 struct iwl4965_notif_statistics statistics;
1079 unsigned long last_statistics_time;
1081 /* context information */
1082 u8 essid[IW_ESSID_MAX_SIZE];
1090 u8 mac_addr[ETH_ALEN];
1092 /*station table variables */
1093 spinlock_t sta_lock;
1095 struct iwl_station_entry stations[IWL_STATION_COUNT];
1096 struct iwl_wep_key wep_keys[WEP_KEYS_MAX];
1099 unsigned long ucode_key_table;
1101 /* Indication if ieee80211_ops->open has been called */
1104 u8 mac80211_registered;
1106 /* Rx'd packet timing information */
1107 u32 last_beacon_time;
1110 /* Duplicate packet detection */
1113 unsigned long last_packet_time;
1115 /* Hash table for finding stations in IBSS network */
1116 struct list_head ibss_mac_hash[IWL_IBSS_MAC_HASH_SIZE];
1120 struct iwl_eeprom_calib_info *calib_info;
1122 enum ieee80211_if_types iw_mode;
1124 struct sk_buff *ibss_beacon;
1126 /* Last Rx'd beacon timestamp */
1129 struct ieee80211_vif *vif;
1131 struct iwl_hw_params hw_params;
1132 /* driver/uCode shared Tx Byte Counts and Rx status */
1134 int rb_closed_offset;
1135 /* Physical Pointer to Tx Byte Counts and Rx status */
1136 dma_addr_t shared_phys;
1138 /* Current association information needed to configure the
1141 u16 assoc_capability;
1144 struct iwl4965_qos_info qos_data;
1146 struct workqueue_struct *workqueue;
1148 struct work_struct up;
1149 struct work_struct restart;
1150 struct work_struct calibrated_work;
1151 struct work_struct scan_completed;
1152 struct work_struct rx_replenish;
1153 struct work_struct rf_kill;
1154 struct work_struct abort_scan;
1155 struct work_struct update_link_led;
1156 struct work_struct auth_work;
1157 struct work_struct report_work;
1158 struct work_struct request_scan;
1159 struct work_struct beacon_update;
1160 struct work_struct set_monitor;
1162 struct tasklet_struct irq_tasklet;
1164 struct delayed_work init_alive_start;
1165 struct delayed_work alive_start;
1166 struct delayed_work scan_check;
1167 struct delayed_work post_associate;
1169 s8 tx_power_user_lmt;
1170 s8 tx_power_channel_lmt;
1176 #ifdef CONFIG_IWLWIFI_DEBUG
1177 /* debugging info */
1180 atomic_t restrict_refcnt;
1181 #ifdef CONFIG_IWLWIFI_DEBUGFS
1183 struct iwl_debugfs *dbgfs;
1184 #endif /* CONFIG_IWLWIFI_DEBUGFS */
1185 #endif /* CONFIG_IWLWIFI_DEBUG */
1187 struct work_struct txpower_work;
1188 u32 disable_sens_cal;
1189 u32 disable_chain_noise_cal;
1190 u32 disable_tx_power_cal;
1191 struct work_struct run_time_calib_work;
1192 struct timer_list statistics_periodic;
1195 static inline void iwl_txq_ctx_activate(struct iwl_priv *priv, int txq_id)
1197 set_bit(txq_id, &priv->txq_ctx_active_msk);
1200 static inline void iwl_txq_ctx_deactivate(struct iwl_priv *priv, int txq_id)
1202 clear_bit(txq_id, &priv->txq_ctx_active_msk);
1205 #ifdef CONFIG_IWLWIF_DEBUG
1206 const char *iwl_get_tx_fail_reason(u32 status);
1208 static inline const char *iwl_get_tx_fail_reason(u32 status) { return ""; }
1212 static inline int iwl_get_ra_sta_id(struct iwl_priv *priv,
1213 struct ieee80211_hdr *hdr)
1215 if (priv->iw_mode == IEEE80211_IF_TYPE_STA) {
1218 u8 *da = ieee80211_get_DA(hdr);
1219 return iwl_find_station(priv, da);
1223 static inline struct ieee80211_hdr *iwl_tx_queue_get_hdr(struct iwl_priv *priv,
1224 int txq_id, int idx)
1226 if (priv->txq[txq_id].txb[idx].skb[0])
1227 return (struct ieee80211_hdr *)priv->txq[txq_id].
1228 txb[idx].skb[0]->data;
1233 static inline int iwl_is_associated(struct iwl_priv *priv)
1235 return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
1238 static inline int is_channel_valid(const struct iwl_channel_info *ch_info)
1240 if (ch_info == NULL)
1242 return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
1245 static inline int is_channel_radar(const struct iwl_channel_info *ch_info)
1247 return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
1250 static inline u8 is_channel_a_band(const struct iwl_channel_info *ch_info)
1252 return ch_info->band == IEEE80211_BAND_5GHZ;
1255 static inline u8 is_channel_bg_band(const struct iwl_channel_info *ch_info)
1257 return ch_info->band == IEEE80211_BAND_2GHZ;
1260 static inline int is_channel_passive(const struct iwl_channel_info *ch)
1262 return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
1265 static inline int is_channel_ibss(const struct iwl_channel_info *ch)
1267 return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
1270 #ifdef CONFIG_IWLWIFI_DEBUG
1271 static inline void iwl_print_hex_dump(struct iwl_priv *priv, int level,
1274 if (!(priv->debug_level & level))
1277 print_hex_dump(KERN_DEBUG, "iwl data: ", DUMP_PREFIX_OFFSET, 16, 1,
1281 static inline void iwl_print_hex_dump(struct iwl_priv *priv, int level,
1287 extern const struct iwl_channel_info *iwl_get_channel_info(
1288 const struct iwl_priv *priv, enum ieee80211_band band, u16 channel);
1290 /* Requires full declaration of iwl_priv before including */
1292 #endif /* __iwl4965_4965_h__ */