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 * Intel Linux Wireless <ilw@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.
35 #include <linux/pci.h> /* for struct pci_device_id */
36 #include <linux/kernel.h>
37 #include <net/ieee80211_radiotap.h>
39 #include "iwl-rfkill.h"
40 #include "iwl-eeprom.h"
41 #include "iwl-4965-hw.h"
42 #include "iwl-3945-hw.h"
45 #include "iwl-debug.h"
47 #include "iwl-power.h"
48 #include "iwl-agn-rs.h"
50 /* configuration for the iwl4965 */
51 extern struct iwl_cfg iwl4965_agn_cfg;
52 extern struct iwl_cfg iwl5300_agn_cfg;
53 extern struct iwl_cfg iwl5100_agn_cfg;
54 extern struct iwl_cfg iwl5350_agn_cfg;
55 extern struct iwl_cfg iwl5100_bg_cfg;
56 extern struct iwl_cfg iwl5100_abg_cfg;
57 extern struct iwl_cfg iwl5150_agn_cfg;
59 /* CT-KILL constants */
60 #define CT_KILL_THRESHOLD 110 /* in Celsius */
62 /* Default noise level to report when noise measurement is not available.
63 * This may be because we're:
64 * 1) Not associated (4965, no beacon statistics being sent to driver)
65 * 2) Scanning (noise measurement does not apply to associated channel)
66 * 3) Receiving CCK (3945 delivers noise info only for OFDM frames)
67 * Use default noise value of -127 ... this is below the range of measurable
68 * Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
69 * Also, -127 works better than 0 when averaging frames with/without
70 * noise info (e.g. averaging might be done in app); measured dBm values are
71 * always negative ... using a negative value as the default keeps all
72 * averages within an s8's (used in some apps) range of negative values. */
73 #define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
76 * RTS threshold here is total size [2347] minus 4 FCS bytes
78 * a value of 0 means RTS on all data/management packets
79 * a value > max MSDU size means no RTS
80 * else RTS for data/management frames where MPDU is larger
83 #define DEFAULT_RTS_THRESHOLD 2347U
84 #define MIN_RTS_THRESHOLD 0U
85 #define MAX_RTS_THRESHOLD 2347U
86 #define MAX_MSDU_SIZE 2304U
87 #define MAX_MPDU_SIZE 2346U
88 #define DEFAULT_BEACON_INTERVAL 100U
89 #define DEFAULT_SHORT_RETRY_LIMIT 7U
90 #define DEFAULT_LONG_RETRY_LIMIT 4U
92 struct iwl_rx_mem_buffer {
93 dma_addr_t real_dma_addr;
94 dma_addr_t aligned_dma_addr;
96 struct list_head list;
100 * Generic queue structure
102 * Contains common data for Rx and Tx queues
105 int n_bd; /* number of BDs in this queue */
106 int write_ptr; /* 1-st empty entry (index) host_w*/
107 int read_ptr; /* last used entry (index) host_r*/
108 dma_addr_t dma_addr; /* physical addr for BD's */
109 int n_window; /* safe queue window */
111 int low_mark; /* low watermark, resume queue if free
112 * space more than this */
113 int high_mark; /* high watermark, stop queue if free
114 * space less than this */
115 } __attribute__ ((packed));
117 /* One for each TFD */
119 struct sk_buff *skb[IWL_NUM_OF_TBS - 1];
123 * struct iwl_tx_queue - Tx Queue for DMA
124 * @q: generic Rx/Tx queue descriptor
125 * @bd: base of circular buffer of TFDs
126 * @cmd: array of command/Tx buffers
127 * @dma_addr_cmd: physical address of cmd/tx buffer array
128 * @txb: array of per-TFD driver data
129 * @need_update: indicates need to update read/write index
130 * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
132 * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
133 * descriptors) and required locking structures.
135 struct iwl_tx_queue {
137 struct iwl_tfd *tfds;
138 struct iwl_cmd *cmd[TFD_TX_CMD_SLOTS];
139 struct iwl_tx_info *txb;
146 #define IWL_NUM_SCAN_RATES (2)
148 struct iwl4965_channel_tgd_info {
153 struct iwl4965_channel_tgh_info {
157 #define IWL4965_MAX_RATE (33)
159 struct iwl3945_clip_group {
160 /* maximum power level to prevent clipping for each rate, derived by
161 * us from this band's saturation power in EEPROM */
162 const s8 clip_powers[IWL_MAX_RATES];
165 /* current Tx power values to use, one for each rate for each channel.
166 * requested power is limited by:
167 * -- regulatory EEPROM limits for this channel
168 * -- hardware capabilities (clip-powers)
169 * -- spectrum management
170 * -- user preference (e.g. iwconfig)
171 * when requested power is set, base power index must also be set. */
172 struct iwl3945_channel_power_info {
173 struct iwl3945_tx_power tpc; /* actual radio and DSP gain settings */
174 s8 power_table_index; /* actual (compenst'd) index into gain table */
175 s8 base_power_index; /* gain index for power at factory temp. */
176 s8 requested_power; /* power (dBm) requested for this chnl/rate */
179 /* current scan Tx power values to use, one for each scan rate for each
181 struct iwl3945_scan_power_info {
182 struct iwl3945_tx_power tpc; /* actual radio and DSP gain settings */
183 s8 power_table_index; /* actual (compenst'd) index into gain table */
184 s8 requested_power; /* scan pwr (dBm) requested for chnl/rate */
188 * One for each channel, holds all channel setup data
189 * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
192 struct iwl_channel_info {
193 struct iwl4965_channel_tgd_info tgd;
194 struct iwl4965_channel_tgh_info tgh;
195 struct iwl_eeprom_channel eeprom; /* EEPROM regulatory limit */
196 struct iwl_eeprom_channel fat_eeprom; /* EEPROM regulatory limit for
199 u8 channel; /* channel number */
200 u8 flags; /* flags copied from EEPROM */
201 s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
202 s8 curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) limit */
203 s8 min_power; /* always 0 */
204 s8 scan_power; /* (dBm) regul. eeprom, direct scans, any rate */
206 u8 group_index; /* 0-4, maps channel to group1/2/3/4/5 */
207 u8 band_index; /* 0-4, maps channel to band1/2/3/4/5 */
208 enum ieee80211_band band;
210 /* FAT channel info */
211 s8 fat_max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
212 s8 fat_curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) */
213 s8 fat_min_power; /* always 0 */
214 s8 fat_scan_power; /* (dBm) eeprom, direct scans, any rate */
215 u8 fat_flags; /* flags copied from EEPROM */
216 u8 fat_extension_channel; /* HT_IE_EXT_CHANNEL_* */
218 /* Radio/DSP gain settings for each "normal" data Tx rate.
219 * These include, in addition to RF and DSP gain, a few fields for
220 * remembering/modifying gain settings (indexes). */
221 struct iwl3945_channel_power_info power_info[IWL4965_MAX_RATE];
223 /* Radio/DSP gain settings for each scan rate, for directed scans. */
224 struct iwl3945_scan_power_info scan_pwr_info[IWL_NUM_SCAN_RATES];
228 * struct iwl3945_tx_queue - Tx Queue for DMA
229 * @q: generic Rx/Tx queue descriptor
230 * @bd: base of circular buffer of TFDs
231 * @cmd: array of command/Tx buffers
232 * @dma_addr_cmd: physical address of cmd/tx buffer array
233 * @txb: array of per-TFD driver data
234 * @need_update: indicates need to update read/write index
236 * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
237 * descriptors) and required locking structures.
239 struct iwl3945_tx_queue {
241 struct iwl3945_tfd_frame *bd;
242 struct iwl3945_cmd *cmd;
243 dma_addr_t dma_addr_cmd;
244 struct iwl3945_tx_info *txb;
249 #define IWL_TX_FIFO_AC0 0
250 #define IWL_TX_FIFO_AC1 1
251 #define IWL_TX_FIFO_AC2 2
252 #define IWL_TX_FIFO_AC3 3
253 #define IWL_TX_FIFO_HCCA_1 5
254 #define IWL_TX_FIFO_HCCA_2 6
255 #define IWL_TX_FIFO_NONE 7
257 /* Minimum number of queues. MAX_NUM is defined in hw specific files */
258 #define IWL_MIN_NUM_QUEUES 4
260 /* Power management (not Tx power) structures */
267 #define IEEE80211_DATA_LEN 2304
268 #define IEEE80211_4ADDR_LEN 30
269 #define IEEE80211_HLEN (IEEE80211_4ADDR_LEN)
270 #define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
274 struct ieee80211_hdr frame;
275 struct iwl_tx_beacon_cmd beacon;
276 u8 raw[IEEE80211_FRAME_LEN];
279 struct list_head list;
282 #define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
283 #define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
284 #define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
287 /* CMD_SIZE_NORMAL = 0, */
288 CMD_SIZE_HUGE = (1 << 0),
290 CMD_ASYNC = (1 << 1),
291 /* CMD_NO_SKB = 0, */
292 CMD_WANT_SKB = (1 << 2),
298 struct iwl_cmd_meta {
299 struct iwl_cmd_meta *source;
302 int (*callback)(struct iwl_priv *priv,
303 struct iwl_cmd *cmd, struct sk_buff *skb);
304 } __attribute__ ((packed)) u;
306 /* The CMD_SIZE_HUGE flag bit indicates that the command
307 * structure is stored at the end of the shared queue memory. */
309 DECLARE_PCI_UNMAP_ADDR(mapping)
310 DECLARE_PCI_UNMAP_LEN(len)
311 } __attribute__ ((packed));
313 #define IWL_CMD_MAX_PAYLOAD 320
318 * For allocation of the command and tx queues, this establishes the overall
319 * size of the largest command we send to uCode, except for a scan command
320 * (which is relatively huge; space is allocated separately).
323 struct iwl_cmd_meta meta; /* driver data */
324 struct iwl_cmd_header hdr; /* uCode API */
330 struct iwl_tx_cmd tx;
331 u8 payload[IWL_CMD_MAX_PAYLOAD];
332 } __attribute__ ((packed)) cmd;
333 } __attribute__ ((packed));
336 struct iwl_host_cmd {
339 struct iwl_cmd_meta meta;
343 #define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_cmd) - \
344 sizeof(struct iwl_cmd_meta))
347 * RX related structures and functions
349 #define RX_FREE_BUFFERS 64
350 #define RX_LOW_WATERMARK 8
352 #define SUP_RATE_11A_MAX_NUM_CHANNELS 8
353 #define SUP_RATE_11B_MAX_NUM_CHANNELS 4
354 #define SUP_RATE_11G_MAX_NUM_CHANNELS 12
357 * struct iwl_rx_queue - Rx queue
358 * @read: Shared index to newest available Rx buffer
359 * @write: Shared index to oldest written Rx packet
360 * @free_count: Number of pre-allocated buffers in rx_free
361 * @rx_free: list of free SKBs for use
362 * @rx_used: List of Rx buffers with no SKB
363 * @need_update: flag to indicate we need to update read/write index
365 * NOTE: rx_free and rx_used are used as a FIFO for iwl_rx_mem_buffers
367 struct iwl_rx_queue {
370 struct iwl_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
371 struct iwl_rx_mem_buffer *queue[RX_QUEUE_SIZE];
375 struct list_head rx_free;
376 struct list_head rx_used;
378 struct iwl_rb_status *rb_stts;
379 dma_addr_t rb_stts_dma;
383 #define IWL_SUPPORTED_RATES_IE_LEN 8
385 #define MAX_TID_COUNT 9
387 #define IWL_INVALID_RATE 0xFF
388 #define IWL_INVALID_VALUE -1
391 * struct iwl_ht_agg -- aggregation status while waiting for block-ack
392 * @txq_id: Tx queue used for Tx attempt
393 * @frame_count: # frames attempted by Tx command
394 * @wait_for_ba: Expect block-ack before next Tx reply
395 * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window
396 * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window
397 * @bitmap1: High order, one bit for each frame pending ACK in Tx window
398 * @rate_n_flags: Rate at which Tx was attempted
400 * If REPLY_TX indicates that aggregation was attempted, driver must wait
401 * for block ack (REPLY_COMPRESSED_BA). This struct stores tx reply info
402 * until block ack arrives.
411 #define IWL_AGG_OFF 0
413 #define IWL_EMPTYING_HW_QUEUE_ADDBA 2
414 #define IWL_EMPTYING_HW_QUEUE_DELBA 3
419 struct iwl_tid_data {
422 struct iwl_ht_agg agg;
426 enum ieee80211_key_alg alg;
432 union iwl_ht_rate_supp {
440 #define CFG_HT_RX_AMPDU_FACTOR_DEF (0x3)
441 #define CFG_HT_MPDU_DENSITY_2USEC (0x5)
442 #define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_2USEC
445 /* self configuration data */
447 u8 supported_chan_width;
450 u8 sgf; /* HT_SHORT_GI_* short guard interval */
454 struct ieee80211_mcs_info mcs;
455 /* BSS related data */
456 u8 extension_chan_offset;
459 u8 non_GF_STA_present;
462 union iwl_qos_capabity {
464 u8 edca_count:4; /* bit 0-3 */
465 u8 q_ack:1; /* bit 4 */
466 u8 queue_request:1; /* bit 5 */
467 u8 txop_request:1; /* bit 6 */
468 u8 reserved:1; /* bit 7 */
471 u8 acvo_APSD:1; /* bit 0 */
472 u8 acvi_APSD:1; /* bit 1 */
473 u8 ac_bk_APSD:1; /* bit 2 */
474 u8 ac_be_APSD:1; /* bit 3 */
475 u8 q_ack:1; /* bit 4 */
476 u8 max_len:2; /* bit 5-6 */
477 u8 more_data_ack:1; /* bit 7 */
483 struct iwl_qos_info {
485 union iwl_qos_capabity qos_cap;
486 struct iwl_qosparam_cmd def_qos_parm;
489 #define STA_PS_STATUS_WAKE 0
490 #define STA_PS_STATUS_SLEEP 1
492 struct iwl3945_tid_data {
496 struct iwl3945_hw_key {
497 enum ieee80211_key_alg alg;
502 struct iwl3945_station_entry {
503 struct iwl3945_addsta_cmd sta;
504 struct iwl3945_tid_data tid[MAX_TID_COUNT];
507 struct iwl3945_hw_key keyinfo;
510 struct iwl_station_entry {
511 struct iwl_addsta_cmd sta;
512 struct iwl_tid_data tid[MAX_TID_COUNT];
515 struct iwl_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 */
527 __le32 ver; /* major/minor/API/serial */
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 struct iwl4965_ibss_seq {
540 unsigned long packet_time;
541 struct list_head list;
544 struct iwl_sensitivity_ranges {
551 u16 auto_corr_min_ofdm;
552 u16 auto_corr_min_ofdm_mrc;
553 u16 auto_corr_min_ofdm_x1;
554 u16 auto_corr_min_ofdm_mrc_x1;
556 u16 auto_corr_max_ofdm;
557 u16 auto_corr_max_ofdm_mrc;
558 u16 auto_corr_max_ofdm_x1;
559 u16 auto_corr_max_ofdm_mrc_x1;
561 u16 auto_corr_max_cck;
562 u16 auto_corr_max_cck_mrc;
563 u16 auto_corr_min_cck;
564 u16 auto_corr_min_cck_mrc;
568 #define KELVIN_TO_CELSIUS(x) ((x)-273)
569 #define CELSIUS_TO_KELVIN(x) ((x)+273)
573 * struct iwl_hw_params
574 * @max_txq_num: Max # Tx queues supported
575 * @dma_chnl_num: Number of Tx DMA/FIFO channels
576 * @scd_bc_tbls_size: size of scheduler byte count tables
577 * @tx/rx_chains_num: Number of TX/RX chains
578 * @valid_tx/rx_ant: usable antennas
579 * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
580 * @max_rxq_log: Log-base-2 of max_rxq_size
581 * @rx_buf_size: Rx buffer size
584 * @fat_channel: is 40MHz width possible in band 2.4
585 * BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ)
586 * @sw_crypto: 0 for hw, 1 for sw
587 * @max_xxx_size: for ucode uses
588 * @ct_kill_threshold: temperature threshold
589 * @calib_init_cfg: setup initial calibrations for the hw
590 * @struct iwl_sensitivity_ranges: range of sensitivity values
592 struct iwl_hw_params {
595 u16 scd_bc_tbls_size;
611 u32 ct_kill_threshold; /* value in hw-dependent units */
613 const struct iwl_sensitivity_ranges *sens;
620 /******************************************************************************
622 * Functions implemented in core module which are forward declared here
623 * for use by iwl-[4-5].c
625 * NOTE: The implementation of these functions are not hardware specific
626 * which is why they are in the core module files.
628 * Naming convention --
629 * iwl_ <-- Is part of iwlwifi
630 * iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
631 * iwl4965_bg_ <-- Called from work queue context
632 * iwl4965_mac_ <-- mac80211 callback
634 ****************************************************************************/
635 extern void iwl_update_chain_flags(struct iwl_priv *priv);
636 extern int iwl_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src);
637 extern const u8 iwl_bcast_addr[ETH_ALEN];
638 extern int iwl_rxq_stop(struct iwl_priv *priv);
639 extern void iwl_txq_ctx_stop(struct iwl_priv *priv);
640 extern int iwl_queue_space(const struct iwl_queue *q);
641 static inline int iwl_queue_used(const struct iwl_queue *q, int i)
643 return q->write_ptr > q->read_ptr ?
644 (i >= q->read_ptr && i < q->write_ptr) :
645 !(i < q->read_ptr && i >= q->write_ptr);
649 static inline u8 get_cmd_index(struct iwl_queue *q, u32 index, int is_huge)
651 /* This is for scan command, the big buffer at end of command array */
653 return q->n_window; /* must be power of 2 */
655 /* Otherwise, use normal size buffers */
656 return index & (q->n_window - 1);
666 #define HT_SHORT_GI_20MHZ (1 << 0)
667 #define HT_SHORT_GI_40MHZ (1 << 1)
669 #define IWL_CHANNEL_WIDTH_20MHZ 0
670 #define IWL_CHANNEL_WIDTH_40MHZ 1
672 #define IWL_OPERATION_MODE_AUTO 0
673 #define IWL_OPERATION_MODE_HT_ONLY 1
674 #define IWL_OPERATION_MODE_MIXED 2
675 #define IWL_OPERATION_MODE_20MHZ 3
677 #define IWL_TX_CRC_SIZE 4
678 #define IWL_TX_DELIMITER_SIZE 4
680 #define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
682 /* Sensitivity and chain noise calibration */
683 #define INITIALIZATION_VALUE 0xFFFF
684 #define CAL_NUM_OF_BEACONS 20
685 #define MAXIMUM_ALLOWED_PATHLOSS 15
687 #define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
689 #define MAX_FA_OFDM 50
690 #define MIN_FA_OFDM 5
691 #define MAX_FA_CCK 50
694 #define AUTO_CORR_STEP_OFDM 1
696 #define AUTO_CORR_STEP_CCK 3
697 #define AUTO_CORR_MAX_TH_CCK 160
700 #define NRG_STEP_CCK 2
702 #define MAX_NUMBER_CCK_NO_FA 100
704 #define AUTO_CORR_CCK_MIN_VAL_DEF (125)
709 #define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
710 #define ALL_BAND_FILTER 0xFF00
711 #define IN_BAND_FILTER 0xFF
712 #define MIN_AVERAGE_NOISE_MAX_VALUE 0xFFFFFFFF
714 #define NRG_NUM_PREV_STAT_L 20
715 #define NUM_RX_CHAINS 3
717 enum iwl4965_false_alarm_state {
720 IWL_FA_GOOD_RANGE = 2,
723 enum iwl4965_chain_noise_state {
724 IWL_CHAIN_NOISE_ALIVE = 0, /* must be 0 */
725 IWL_CHAIN_NOISE_ACCUMULATE,
726 IWL_CHAIN_NOISE_CALIBRATED,
727 IWL_CHAIN_NOISE_DONE,
730 enum iwl4965_calib_enabled_state {
731 IWL_CALIB_DISABLED = 0, /* must be 0 */
732 IWL_CALIB_ENABLED = 1,
738 * defines the order in which results of initial calibrations
739 * should be sent to the runtime uCode
746 IWL_CALIB_TX_IQ_PERD,
751 /* Opaque calibration results */
752 struct iwl_calib_result {
763 /* Sensitivity calib data */
764 struct iwl_sensitivity_data {
766 u32 auto_corr_ofdm_mrc;
767 u32 auto_corr_ofdm_x1;
768 u32 auto_corr_ofdm_mrc_x1;
770 u32 auto_corr_cck_mrc;
772 u32 last_bad_plcp_cnt_ofdm;
773 u32 last_fa_cnt_ofdm;
774 u32 last_bad_plcp_cnt_cck;
780 u8 nrg_silence_rssi[NRG_NUM_PREV_STAT_L];
785 s32 nrg_auto_corr_silence_diff;
786 u32 num_in_cck_no_fa;
790 /* Chain noise (differential Rx gain) calib data */
791 struct iwl_chain_noise_data {
800 u8 disconn_array[NUM_RX_CHAINS];
801 u8 delta_gain_code[NUM_RX_CHAINS];
806 #define EEPROM_SEM_TIMEOUT 10 /* milliseconds */
807 #define EEPROM_SEM_RETRY_LIMIT 1000 /* number of attempts (not time) */
811 MEASUREMENT_READY = (1 << 0),
812 MEASUREMENT_ACTIVE = (1 << 1),
816 #define IWL_MAX_NUM_QUEUES 20 /* FIXME: do dynamic allocation */
820 /* ieee device used by generic ieee processing code */
821 struct ieee80211_hw *hw;
822 struct ieee80211_channel *ieee_channels;
823 struct ieee80211_rate *ieee_rates;
826 /* temporary frame storage list */
827 struct list_head free_frames;
830 enum ieee80211_band band;
833 void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv,
834 struct iwl_rx_mem_buffer *rxb);
836 struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
838 #ifdef CONFIG_IWLAGN_SPECTRUM_MEASUREMENT
839 /* spectrum measurement report caching */
840 struct iwl_spectrum_notification measure_report;
841 u8 measurement_status;
843 /* ucode beacon time */
844 u32 ucode_beacon_time;
846 /* we allocate array of iwl4965_channel_info for NIC's valid channels.
847 * Access via channel # using indirect index array */
848 struct iwl_channel_info *channel_info; /* channel info array */
849 u8 channel_count; /* # of channels */
851 /* each calibration channel group in the EEPROM has a derived
852 * clip setting for each rate. 3945 only.*/
853 const struct iwl3945_clip_group clip39_groups[5];
855 /* thermal calibration */
856 s32 temperature; /* degrees Kelvin */
857 s32 last_temperature;
859 /* init calibration results */
860 struct iwl_calib_result calib_results[IWL_CALIB_MAX];
862 /* Scan related variables */
863 unsigned long last_scan_jiffies;
864 unsigned long next_scan_jiffies;
865 unsigned long scan_start;
866 unsigned long scan_pass_start;
867 unsigned long scan_start_tsf;
868 struct iwl_scan_cmd *scan;
872 u8 direct_ssid[IW_ESSID_MAX_SIZE];
873 u8 scan_tx_ant[IEEE80211_NUM_BANDS];
877 spinlock_t lock; /* protect general shared data */
878 spinlock_t hcmd_lock; /* protect hcmd */
881 /* basic pci-network driver stuff */
882 struct pci_dev *pci_dev;
884 /* pci hardware address support */
885 void __iomem *hw_base;
890 /* uCode images, save to reload in case of failure */
891 u32 ucode_ver; /* version of ucode, copy of
893 struct fw_desc ucode_code; /* runtime inst */
894 struct fw_desc ucode_data; /* runtime data original */
895 struct fw_desc ucode_data_backup; /* runtime data save/restore */
896 struct fw_desc ucode_init; /* initialization inst */
897 struct fw_desc ucode_init_data; /* initialization data */
898 struct fw_desc ucode_boot; /* bootstrap inst */
899 enum ucode_type ucode_type;
900 u8 ucode_write_complete; /* the image write is complete */
903 struct iwl_rxon_time_cmd rxon_timing;
905 /* We declare this const so it can only be
906 * changed via explicit cast within the
907 * routines that actually update the physical
909 const struct iwl_rxon_cmd active_rxon;
910 struct iwl_rxon_cmd staging_rxon;
912 int error_recovering;
913 struct iwl_rxon_cmd recovery_rxon;
915 /* 1st responses from initialize and runtime uCode images.
916 * 4965's initialize alive response contains some calibration data. */
917 struct iwl_init_alive_resp card_alive_init;
918 struct iwl_alive_resp card_alive;
919 #ifdef CONFIG_IWLWIFI_RFKILL
920 struct rfkill *rfkill;
923 #ifdef CONFIG_IWLWIFI_LEDS
924 struct iwl_led led[IWL_LED_TRG_MAX];
925 unsigned long last_blink_time;
932 u16 active_rate_basic;
934 u8 assoc_station_added;
936 struct iwl_sensitivity_data sensitivity_data;
937 struct iwl_chain_noise_data chain_noise_data;
938 __le16 sensitivity_tbl[HD_TABLE_SIZE];
940 struct iwl_ht_info current_ht_config;
941 u8 last_phy_res[100];
943 /* Rate scaling data */
947 wait_queue_head_t wait_command_queue;
949 int activity_timer_active;
951 /* Rx and Tx DMA processing queues */
952 struct iwl_rx_queue rxq;
953 struct iwl_tx_queue txq[IWL_MAX_NUM_QUEUES];
954 unsigned long txq_ctx_active_msk;
955 struct iwl_dma_ptr kw; /* keep warm address */
956 struct iwl_dma_ptr scd_bc_tbls;
958 u32 scd_base_addr; /* scheduler sram base address */
960 unsigned long status;
962 int last_rx_rssi; /* From Rx packet statistics */
963 int last_rx_noise; /* From beacon statistics */
965 /* counts mgmt, ctl, and data packets */
966 struct traffic_stats {
969 } tx_stats[3], rx_stats[3];
971 struct iwl_power_mgr power_data;
973 struct iwl_notif_statistics statistics;
974 unsigned long last_statistics_time;
976 /* context information */
983 u8 mac_addr[ETH_ALEN];
985 /*station table variables */
988 struct iwl_station_entry stations[IWL_STATION_COUNT];
989 struct iwl_wep_key wep_keys[WEP_KEYS_MAX];
992 unsigned long ucode_key_table;
994 /* Indication if ieee80211_ops->open has been called */
997 u8 mac80211_registered;
999 /* Rx'd packet timing information */
1000 u32 last_beacon_time;
1005 struct iwl_eeprom_calib_info *calib_info;
1007 enum nl80211_iftype iw_mode;
1009 struct sk_buff *ibss_beacon;
1011 /* Last Rx'd beacon timestamp */
1014 struct ieee80211_vif *vif;
1018 dma_addr_t shared_phys;
1020 struct iwl_hw_params hw_params;
1023 /* Current association information needed to configure the
1026 u16 assoc_capability;
1028 struct iwl_qos_info qos_data;
1030 struct workqueue_struct *workqueue;
1032 struct work_struct up;
1033 struct work_struct restart;
1034 struct work_struct calibrated_work;
1035 struct work_struct scan_completed;
1036 struct work_struct rx_replenish;
1037 struct work_struct rf_kill;
1038 struct work_struct abort_scan;
1039 struct work_struct update_link_led;
1040 struct work_struct auth_work;
1041 struct work_struct report_work;
1042 struct work_struct request_scan;
1043 struct work_struct beacon_update;
1045 struct tasklet_struct irq_tasklet;
1047 struct delayed_work set_power_save;
1048 struct delayed_work init_alive_start;
1049 struct delayed_work alive_start;
1050 struct delayed_work scan_check;
1052 s8 tx_power_user_lmt;
1053 s8 tx_power_channel_lmt;
1056 #ifdef CONFIG_IWLWIFI_DEBUG
1057 /* debugging info */
1060 atomic_t restrict_refcnt;
1061 #ifdef CONFIG_IWLWIFI_DEBUGFS
1063 struct iwl_debugfs *dbgfs;
1064 #endif /* CONFIG_IWLWIFI_DEBUGFS */
1065 #endif /* CONFIG_IWLWIFI_DEBUG */
1067 struct work_struct txpower_work;
1068 u32 disable_sens_cal;
1069 u32 disable_chain_noise_cal;
1070 u32 disable_tx_power_cal;
1071 struct work_struct run_time_calib_work;
1072 struct timer_list statistics_periodic;
1075 static inline void iwl_txq_ctx_activate(struct iwl_priv *priv, int txq_id)
1077 set_bit(txq_id, &priv->txq_ctx_active_msk);
1080 static inline void iwl_txq_ctx_deactivate(struct iwl_priv *priv, int txq_id)
1082 clear_bit(txq_id, &priv->txq_ctx_active_msk);
1085 #ifdef CONFIG_IWLWIFI_DEBUG
1086 const char *iwl_get_tx_fail_reason(u32 status);
1088 static inline const char *iwl_get_tx_fail_reason(u32 status) { return ""; }
1092 static inline struct ieee80211_hdr *iwl_tx_queue_get_hdr(struct iwl_priv *priv,
1093 int txq_id, int idx)
1095 if (priv->txq[txq_id].txb[idx].skb[0])
1096 return (struct ieee80211_hdr *)priv->txq[txq_id].
1097 txb[idx].skb[0]->data;
1102 static inline int iwl_is_associated(struct iwl_priv *priv)
1104 return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
1107 static inline int is_channel_valid(const struct iwl_channel_info *ch_info)
1109 if (ch_info == NULL)
1111 return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
1114 static inline int is_channel_radar(const struct iwl_channel_info *ch_info)
1116 return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
1119 static inline u8 is_channel_a_band(const struct iwl_channel_info *ch_info)
1121 return ch_info->band == IEEE80211_BAND_5GHZ;
1124 static inline u8 is_channel_bg_band(const struct iwl_channel_info *ch_info)
1126 return ch_info->band == IEEE80211_BAND_2GHZ;
1129 static inline int is_channel_passive(const struct iwl_channel_info *ch)
1131 return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
1134 static inline int is_channel_ibss(const struct iwl_channel_info *ch)
1136 return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
1139 #endif /* __iwl_dev_h__ */