1 /******************************************************************************
3 * Copyright(c) 2003 - 2010 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-eeprom.h"
43 #include "iwl-debug.h"
44 #include "iwl-4965-hw.h"
45 #include "iwl-3945-hw.h"
46 #include "iwl-agn-hw.h"
48 #include "iwl-power.h"
49 #include "iwl-agn-rs.h"
53 /* CT-KILL constants */
54 #define CT_KILL_THRESHOLD_LEGACY 110 /* in Celsius */
55 #define CT_KILL_THRESHOLD 114 /* in Celsius */
56 #define CT_KILL_EXIT_THRESHOLD 95 /* in Celsius */
58 /* Default noise level to report when noise measurement is not available.
59 * This may be because we're:
60 * 1) Not associated (4965, no beacon statistics being sent to driver)
61 * 2) Scanning (noise measurement does not apply to associated channel)
62 * 3) Receiving CCK (3945 delivers noise info only for OFDM frames)
63 * Use default noise value of -127 ... this is below the range of measurable
64 * Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
65 * Also, -127 works better than 0 when averaging frames with/without
66 * noise info (e.g. averaging might be done in app); measured dBm values are
67 * always negative ... using a negative value as the default keeps all
68 * averages within an s8's (used in some apps) range of negative values. */
69 #define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
72 * RTS threshold here is total size [2347] minus 4 FCS bytes
74 * a value of 0 means RTS on all data/management packets
75 * a value > max MSDU size means no RTS
76 * else RTS for data/management frames where MPDU is larger
79 #define DEFAULT_RTS_THRESHOLD 2347U
80 #define MIN_RTS_THRESHOLD 0U
81 #define MAX_RTS_THRESHOLD 2347U
82 #define MAX_MSDU_SIZE 2304U
83 #define MAX_MPDU_SIZE 2346U
84 #define DEFAULT_BEACON_INTERVAL 100U
85 #define DEFAULT_SHORT_RETRY_LIMIT 7U
86 #define DEFAULT_LONG_RETRY_LIMIT 4U
88 struct iwl_rx_mem_buffer
{
91 struct list_head list
;
94 #define rxb_addr(r) page_address(r->page)
97 struct iwl_device_cmd
;
100 /* only for SYNC commands, iff the reply skb is wanted */
101 struct iwl_host_cmd
*source
;
103 * only for ASYNC commands
104 * (which is somewhat stupid -- look at iwl-sta.c for instance
105 * which duplicates a bunch of code because the callback isn't
106 * invoked for SYNC commands, if it were and its result passed
107 * through it would be simpler...)
109 void (*callback
)(struct iwl_priv
*priv
,
110 struct iwl_device_cmd
*cmd
,
111 struct iwl_rx_packet
*pkt
);
113 /* The CMD_SIZE_HUGE flag bit indicates that the command
114 * structure is stored at the end of the shared queue memory. */
117 DEFINE_DMA_UNMAP_ADDR(mapping
);
118 DEFINE_DMA_UNMAP_LEN(len
);
122 * Generic queue structure
124 * Contains common data for Rx and Tx queues
127 int n_bd
; /* number of BDs in this queue */
128 int write_ptr
; /* 1-st empty entry (index) host_w*/
129 int read_ptr
; /* last used entry (index) host_r*/
130 /* use for monitoring and recovering the stuck queue */
131 int last_read_ptr
; /* storing the last read_ptr */
132 /* number of time read_ptr and last_read_ptr are the same */
133 u8 repeat_same_read_ptr
;
134 dma_addr_t dma_addr
; /* physical addr for BD's */
135 int n_window
; /* safe queue window */
137 int low_mark
; /* low watermark, resume queue if free
138 * space more than this */
139 int high_mark
; /* high watermark, stop queue if free
140 * space less than this */
143 /* One for each TFD */
149 * struct iwl_tx_queue - Tx Queue for DMA
150 * @q: generic Rx/Tx queue descriptor
151 * @bd: base of circular buffer of TFDs
152 * @cmd: array of command/TX buffer pointers
153 * @meta: array of meta data for each command/tx buffer
154 * @dma_addr_cmd: physical address of cmd/tx buffer array
155 * @txb: array of per-TFD driver data
156 * @need_update: indicates need to update read/write index
157 * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
159 * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
160 * descriptors) and required locking structures.
162 #define TFD_TX_CMD_SLOTS 256
163 #define TFD_CMD_SLOTS 32
165 struct iwl_tx_queue
{
168 struct iwl_device_cmd
**cmd
;
169 struct iwl_cmd_meta
*meta
;
170 struct iwl_tx_info
*txb
;
177 #define IWL_NUM_SCAN_RATES (2)
179 struct iwl4965_channel_tgd_info
{
184 struct iwl4965_channel_tgh_info
{
188 #define IWL4965_MAX_RATE (33)
190 struct iwl3945_clip_group
{
191 /* maximum power level to prevent clipping for each rate, derived by
192 * us from this band's saturation power in EEPROM */
193 const s8 clip_powers
[IWL_MAX_RATES
];
196 /* current Tx power values to use, one for each rate for each channel.
197 * requested power is limited by:
198 * -- regulatory EEPROM limits for this channel
199 * -- hardware capabilities (clip-powers)
200 * -- spectrum management
201 * -- user preference (e.g. iwconfig)
202 * when requested power is set, base power index must also be set. */
203 struct iwl3945_channel_power_info
{
204 struct iwl3945_tx_power tpc
; /* actual radio and DSP gain settings */
205 s8 power_table_index
; /* actual (compenst'd) index into gain table */
206 s8 base_power_index
; /* gain index for power at factory temp. */
207 s8 requested_power
; /* power (dBm) requested for this chnl/rate */
210 /* current scan Tx power values to use, one for each scan rate for each
212 struct iwl3945_scan_power_info
{
213 struct iwl3945_tx_power tpc
; /* actual radio and DSP gain settings */
214 s8 power_table_index
; /* actual (compenst'd) index into gain table */
215 s8 requested_power
; /* scan pwr (dBm) requested for chnl/rate */
219 * One for each channel, holds all channel setup data
220 * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
223 struct iwl_channel_info
{
224 struct iwl4965_channel_tgd_info tgd
;
225 struct iwl4965_channel_tgh_info tgh
;
226 struct iwl_eeprom_channel eeprom
; /* EEPROM regulatory limit */
227 struct iwl_eeprom_channel ht40_eeprom
; /* EEPROM regulatory limit for
230 u8 channel
; /* channel number */
231 u8 flags
; /* flags copied from EEPROM */
232 s8 max_power_avg
; /* (dBm) regul. eeprom, normal Tx, any rate */
233 s8 curr_txpow
; /* (dBm) regulatory/spectrum/user (not h/w) limit */
234 s8 min_power
; /* always 0 */
235 s8 scan_power
; /* (dBm) regul. eeprom, direct scans, any rate */
237 u8 group_index
; /* 0-4, maps channel to group1/2/3/4/5 */
238 u8 band_index
; /* 0-4, maps channel to band1/2/3/4/5 */
239 enum ieee80211_band band
;
241 /* HT40 channel info */
242 s8 ht40_max_power_avg
; /* (dBm) regul. eeprom, normal Tx, any rate */
243 u8 ht40_flags
; /* flags copied from EEPROM */
244 u8 ht40_extension_channel
; /* HT_IE_EXT_CHANNEL_* */
246 /* Radio/DSP gain settings for each "normal" data Tx rate.
247 * These include, in addition to RF and DSP gain, a few fields for
248 * remembering/modifying gain settings (indexes). */
249 struct iwl3945_channel_power_info power_info
[IWL4965_MAX_RATE
];
251 /* Radio/DSP gain settings for each scan rate, for directed scans. */
252 struct iwl3945_scan_power_info scan_pwr_info
[IWL_NUM_SCAN_RATES
];
255 #define IWL_TX_FIFO_BK 0
256 #define IWL_TX_FIFO_BE 1
257 #define IWL_TX_FIFO_VI 2
258 #define IWL_TX_FIFO_VO 3
259 #define IWL_TX_FIFO_UNUSED -1
261 /* Minimum number of queues. MAX_NUM is defined in hw specific files.
262 * Set the minimum to accommodate the 4 standard TX queues, 1 command
263 * queue, 2 (unused) HCCA queues, and 4 HT queues (one for each AC) */
264 #define IWL_MIN_NUM_QUEUES 10
267 * Queue #4 is the command queue for 3945/4965/5x00/1000/6x00,
268 * the driver maps it into the appropriate device FIFO for the
271 #define IWL_CMD_QUEUE_NUM 4
273 /* Power management (not Tx power) structures */
280 #define IEEE80211_DATA_LEN 2304
281 #define IEEE80211_4ADDR_LEN 30
282 #define IEEE80211_HLEN (IEEE80211_4ADDR_LEN)
283 #define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
287 struct ieee80211_hdr frame
;
288 struct iwl_tx_beacon_cmd beacon
;
289 u8 raw
[IEEE80211_FRAME_LEN
];
292 struct list_head list
;
295 #define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
296 #define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
297 #define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
303 CMD_SIZE_HUGE
= (1 << 0),
304 CMD_ASYNC
= (1 << 1),
305 CMD_WANT_SKB
= (1 << 2),
308 #define DEF_CMD_PAYLOAD_SIZE 320
311 * struct iwl_device_cmd
313 * For allocation of the command and tx queues, this establishes the overall
314 * size of the largest command we send to uCode, except for a scan command
315 * (which is relatively huge; space is allocated separately).
317 struct iwl_device_cmd
{
318 struct iwl_cmd_header hdr
; /* uCode API */
324 struct iwl_tx_cmd tx
;
325 struct iwl6000_channel_switch_cmd chswitch
;
326 u8 payload
[DEF_CMD_PAYLOAD_SIZE
];
330 #define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_device_cmd))
333 struct iwl_host_cmd
{
335 unsigned long reply_page
;
336 void (*callback
)(struct iwl_priv
*priv
,
337 struct iwl_device_cmd
*cmd
,
338 struct iwl_rx_packet
*pkt
);
344 #define SUP_RATE_11A_MAX_NUM_CHANNELS 8
345 #define SUP_RATE_11B_MAX_NUM_CHANNELS 4
346 #define SUP_RATE_11G_MAX_NUM_CHANNELS 12
349 * struct iwl_rx_queue - Rx queue
350 * @bd: driver's pointer to buffer of receive buffer descriptors (rbd)
351 * @bd_dma: bus address of buffer of receive buffer descriptors (rbd)
352 * @read: Shared index to newest available Rx buffer
353 * @write: Shared index to oldest written Rx packet
354 * @free_count: Number of pre-allocated buffers in rx_free
355 * @rx_free: list of free SKBs for use
356 * @rx_used: List of Rx buffers with no SKB
357 * @need_update: flag to indicate we need to update read/write index
358 * @rb_stts: driver's pointer to receive buffer status
359 * @rb_stts_dma: bus address of receive buffer status
361 * NOTE: rx_free and rx_used are used as a FIFO for iwl_rx_mem_buffers
363 struct iwl_rx_queue
{
366 struct iwl_rx_mem_buffer pool
[RX_QUEUE_SIZE
+ RX_FREE_BUFFERS
];
367 struct iwl_rx_mem_buffer
*queue
[RX_QUEUE_SIZE
];
372 struct list_head rx_free
;
373 struct list_head rx_used
;
375 struct iwl_rb_status
*rb_stts
;
376 dma_addr_t rb_stts_dma
;
380 #define IWL_SUPPORTED_RATES_IE_LEN 8
382 #define MAX_TID_COUNT 9
384 #define IWL_INVALID_RATE 0xFF
385 #define IWL_INVALID_VALUE -1
388 * struct iwl_ht_agg -- aggregation status while waiting for block-ack
389 * @txq_id: Tx queue used for Tx attempt
390 * @frame_count: # frames attempted by Tx command
391 * @wait_for_ba: Expect block-ack before next Tx reply
392 * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window
393 * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window
394 * @bitmap1: High order, one bit for each frame pending ACK in Tx window
395 * @rate_n_flags: Rate at which Tx was attempted
397 * If REPLY_TX indicates that aggregation was attempted, driver must wait
398 * for block ack (REPLY_COMPRESSED_BA). This struct stores tx reply info
399 * until block ack arrives.
408 #define IWL_AGG_OFF 0
410 #define IWL_EMPTYING_HW_QUEUE_ADDBA 2
411 #define IWL_EMPTYING_HW_QUEUE_DELBA 3
416 struct iwl_tid_data
{
417 u16 seq_number
; /* agn only */
419 struct iwl_ht_agg agg
;
423 enum ieee80211_key_alg alg
;
429 union iwl_ht_rate_supp
{
437 #define CFG_HT_RX_AMPDU_FACTOR_DEF (0x3)
440 * Maximal MPDU density for TX aggregation
446 #define CFG_HT_MPDU_DENSITY_4USEC (0x5)
447 #define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_4USEC
449 struct iwl_ht_config
{
450 /* self configuration data */
453 bool single_chain_sufficient
;
454 enum ieee80211_smps_mode smps
; /* current smps mode */
455 /* BSS related data */
456 u8 extension_chan_offset
;
458 u8 non_GF_STA_present
;
462 struct iwl_qos_info
{
464 struct iwl_qosparam_cmd def_qos_parm
;
468 * Structure should be accessed with sta_lock held. When station addition
469 * is in progress (IWL_STA_UCODE_INPROGRESS) it is possible to access only
470 * the commands (iwl_addsta_cmd and iwl_link_quality_cmd) without sta_lock
473 struct iwl_station_entry
{
474 struct iwl_addsta_cmd sta
;
475 struct iwl_tid_data tid
[MAX_TID_COUNT
];
477 struct iwl_hw_key keyinfo
;
478 struct iwl_link_quality_cmd
*lq
;
481 struct iwl_station_priv_common
{
486 * iwl_station_priv: Driver's private station information
488 * When mac80211 creates a station it reserves some space (hw->sta_data_size)
489 * in the structure for use by driver. This structure is places in that
492 * The common struct MUST be first because it is shared between
495 struct iwl_station_priv
{
496 struct iwl_station_priv_common common
;
497 struct iwl_lq_sta lq_sta
;
498 atomic_t pending_frames
;
504 * struct iwl_vif_priv - driver's private per-interface information
506 * When mac80211 allocates a virtual interface, it can allocate
507 * space for us to put data into.
509 struct iwl_vif_priv
{
510 u8 ibss_bssid_sta_id
;
513 /* one for each uCode image (inst/data, boot/init/runtime) */
515 void *v_addr
; /* access by driver */
516 dma_addr_t p_addr
; /* access by card's busmaster DMA */
520 /* v1/v2 uCode file layout */
521 struct iwl_ucode_header
{
522 __le32 ver
; /* major/minor/API/serial */
525 __le32 inst_size
; /* bytes of runtime code */
526 __le32 data_size
; /* bytes of runtime data */
527 __le32 init_size
; /* bytes of init code */
528 __le32 init_data_size
; /* bytes of init data */
529 __le32 boot_size
; /* bytes of bootstrap code */
530 u8 data
[0]; /* in same order as sizes */
533 __le32 build
; /* build number */
534 __le32 inst_size
; /* bytes of runtime code */
535 __le32 data_size
; /* bytes of runtime data */
536 __le32 init_size
; /* bytes of init code */
537 __le32 init_data_size
; /* bytes of init data */
538 __le32 boot_size
; /* bytes of bootstrap code */
539 u8 data
[0]; /* in same order as sizes */
545 * new TLV uCode file layout
547 * The new TLV file format contains TLVs, that each specify
548 * some piece of data. To facilitate "groups", for example
549 * different instruction image with different capabilities,
550 * bundled with the same init image, an alternative mechanism
552 * When the alternative field is 0, that means that the item
553 * is always valid. When it is non-zero, then it is only
554 * valid in conjunction with items of the same alternative,
555 * in which case the driver (user) selects one alternative
559 enum iwl_ucode_tlv_type
{
560 IWL_UCODE_TLV_INVALID
= 0, /* unused */
561 IWL_UCODE_TLV_INST
= 1,
562 IWL_UCODE_TLV_DATA
= 2,
563 IWL_UCODE_TLV_INIT
= 3,
564 IWL_UCODE_TLV_INIT_DATA
= 4,
565 IWL_UCODE_TLV_BOOT
= 5,
566 IWL_UCODE_TLV_PROBE_MAX_LEN
= 6, /* a u32 value */
567 IWL_UCODE_TLV_RUNT_EVTLOG_PTR
= 8,
568 IWL_UCODE_TLV_RUNT_EVTLOG_SIZE
= 9,
569 IWL_UCODE_TLV_RUNT_ERRLOG_PTR
= 10,
570 IWL_UCODE_TLV_INIT_EVTLOG_PTR
= 11,
571 IWL_UCODE_TLV_INIT_EVTLOG_SIZE
= 12,
572 IWL_UCODE_TLV_INIT_ERRLOG_PTR
= 13,
573 IWL_UCODE_TLV_ENHANCE_SENS_TBL
= 14,
574 IWL_UCODE_TLV_PHY_CALIBRATION_SIZE
= 15,
577 struct iwl_ucode_tlv
{
578 __le16 type
; /* see above */
579 __le16 alternative
; /* see comment */
580 __le32 length
; /* not including type/length fields */
584 #define IWL_TLV_UCODE_MAGIC 0x0a4c5749
586 struct iwl_tlv_ucode_header
{
588 * The TLV style ucode header is distinguished from
589 * the v1/v2 style header by first four bytes being
590 * zero, as such is an invalid combination of
591 * major/minor/API/serial versions.
595 u8 human_readable
[64];
596 __le32 ver
; /* major/minor/API/serial */
598 __le64 alternatives
; /* bitmask of valid alternatives */
600 * The data contained herein has a TLV layout,
601 * see above for the TLV header and types.
602 * Note that each TLV is padded to a length
603 * that is a multiple of 4 for alignment.
608 struct iwl4965_ibss_seq
{
612 unsigned long packet_time
;
613 struct list_head list
;
616 struct iwl_sensitivity_ranges
{
623 u16 auto_corr_min_ofdm
;
624 u16 auto_corr_min_ofdm_mrc
;
625 u16 auto_corr_min_ofdm_x1
;
626 u16 auto_corr_min_ofdm_mrc_x1
;
628 u16 auto_corr_max_ofdm
;
629 u16 auto_corr_max_ofdm_mrc
;
630 u16 auto_corr_max_ofdm_x1
;
631 u16 auto_corr_max_ofdm_mrc_x1
;
633 u16 auto_corr_max_cck
;
634 u16 auto_corr_max_cck_mrc
;
635 u16 auto_corr_min_cck
;
636 u16 auto_corr_min_cck_mrc
;
638 u16 barker_corr_th_min
;
639 u16 barker_corr_th_min_mrc
;
644 #define KELVIN_TO_CELSIUS(x) ((x)-273)
645 #define CELSIUS_TO_KELVIN(x) ((x)+273)
649 * struct iwl_hw_params
650 * @max_txq_num: Max # Tx queues supported
651 * @dma_chnl_num: Number of Tx DMA/FIFO channels
652 * @scd_bc_tbls_size: size of scheduler byte count tables
653 * @tfd_size: TFD size
654 * @tx/rx_chains_num: Number of TX/RX chains
655 * @valid_tx/rx_ant: usable antennas
656 * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
657 * @max_rxq_log: Log-base-2 of max_rxq_size
658 * @rx_page_order: Rx buffer page order
659 * @rx_wrt_ptr_reg: FH{39}_RSCSR_CHNL0_WPTR
662 * @ht40_channel: is 40MHz width possible in band 2.4
663 * BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ)
664 * @sw_crypto: 0 for hw, 1 for sw
665 * @max_xxx_size: for ucode uses
666 * @ct_kill_threshold: temperature threshold
667 * @beacon_time_tsf_bits: number of valid tsf bits for beacon time
668 * @calib_init_cfg: setup initial calibrations for the hw
669 * @struct iwl_sensitivity_ranges: range of sensitivity values
671 struct iwl_hw_params
{
674 u16 scd_bc_tbls_size
;
687 u8 max_beacon_itrvl
; /* in 1024 ms */
691 u32 ct_kill_threshold
; /* value in hw-dependent units */
692 u32 ct_kill_exit_threshold
; /* value in hw-dependent units */
693 /* for 1000, 6000 series and up */
694 u16 beacon_time_tsf_bits
;
696 const struct iwl_sensitivity_ranges
*sens
;
700 extern void iwl_update_chain_flags(struct iwl_priv
*priv
);
701 extern int iwl_set_pwr_src(struct iwl_priv
*priv
, enum iwl_pwr_src src
);
702 extern const u8 iwl_bcast_addr
[ETH_ALEN
];
703 extern int iwl_rxq_stop(struct iwl_priv
*priv
);
704 extern void iwl_txq_ctx_stop(struct iwl_priv
*priv
);
705 extern int iwl_queue_space(const struct iwl_queue
*q
);
706 static inline int iwl_queue_used(const struct iwl_queue
*q
, int i
)
708 return q
->write_ptr
>= q
->read_ptr
?
709 (i
>= q
->read_ptr
&& i
< q
->write_ptr
) :
710 !(i
< q
->read_ptr
&& i
>= q
->write_ptr
);
714 static inline u8
get_cmd_index(struct iwl_queue
*q
, u32 index
, int is_huge
)
717 * This is for init calibration result and scan command which
718 * required buffer > TFD_MAX_PAYLOAD_SIZE,
719 * the big buffer at end of command array
722 return q
->n_window
; /* must be power of 2 */
724 /* Otherwise, use normal size buffers */
725 return index
& (q
->n_window
- 1);
735 #define IWL_OPERATION_MODE_AUTO 0
736 #define IWL_OPERATION_MODE_HT_ONLY 1
737 #define IWL_OPERATION_MODE_MIXED 2
738 #define IWL_OPERATION_MODE_20MHZ 3
740 #define IWL_TX_CRC_SIZE 4
741 #define IWL_TX_DELIMITER_SIZE 4
743 #define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
745 /* Sensitivity and chain noise calibration */
746 #define INITIALIZATION_VALUE 0xFFFF
747 #define IWL4965_CAL_NUM_BEACONS 20
748 #define IWL_CAL_NUM_BEACONS 16
749 #define MAXIMUM_ALLOWED_PATHLOSS 15
751 #define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
753 #define MAX_FA_OFDM 50
754 #define MIN_FA_OFDM 5
755 #define MAX_FA_CCK 50
758 #define AUTO_CORR_STEP_OFDM 1
760 #define AUTO_CORR_STEP_CCK 3
761 #define AUTO_CORR_MAX_TH_CCK 160
764 #define NRG_STEP_CCK 2
766 #define MAX_NUMBER_CCK_NO_FA 100
768 #define AUTO_CORR_CCK_MIN_VAL_DEF (125)
773 #define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
774 #define ALL_BAND_FILTER 0xFF00
775 #define IN_BAND_FILTER 0xFF
776 #define MIN_AVERAGE_NOISE_MAX_VALUE 0xFFFFFFFF
778 #define NRG_NUM_PREV_STAT_L 20
779 #define NUM_RX_CHAINS 3
781 enum iwl4965_false_alarm_state
{
784 IWL_FA_GOOD_RANGE
= 2,
787 enum iwl4965_chain_noise_state
{
788 IWL_CHAIN_NOISE_ALIVE
= 0, /* must be 0 */
789 IWL_CHAIN_NOISE_ACCUMULATE
,
790 IWL_CHAIN_NOISE_CALIBRATED
,
791 IWL_CHAIN_NOISE_DONE
,
794 enum iwl4965_calib_enabled_state
{
795 IWL_CALIB_DISABLED
= 0, /* must be 0 */
796 IWL_CALIB_ENABLED
= 1,
802 * defines the order in which results of initial calibrations
803 * should be sent to the runtime uCode
810 IWL_CALIB_TX_IQ_PERD
,
815 /* Opaque calibration results */
816 struct iwl_calib_result
{
827 /* Sensitivity calib data */
828 struct iwl_sensitivity_data
{
830 u32 auto_corr_ofdm_mrc
;
831 u32 auto_corr_ofdm_x1
;
832 u32 auto_corr_ofdm_mrc_x1
;
834 u32 auto_corr_cck_mrc
;
836 u32 last_bad_plcp_cnt_ofdm
;
837 u32 last_fa_cnt_ofdm
;
838 u32 last_bad_plcp_cnt_cck
;
844 u8 nrg_silence_rssi
[NRG_NUM_PREV_STAT_L
];
849 s32 nrg_auto_corr_silence_diff
;
850 u32 num_in_cck_no_fa
;
853 u16 barker_corr_th_min
;
854 u16 barker_corr_th_min_mrc
;
858 /* Chain noise (differential Rx gain) calib data */
859 struct iwl_chain_noise_data
{
868 u8 disconn_array
[NUM_RX_CHAINS
];
869 u8 delta_gain_code
[NUM_RX_CHAINS
];
874 #define EEPROM_SEM_TIMEOUT 10 /* milliseconds */
875 #define EEPROM_SEM_RETRY_LIMIT 1000 /* number of attempts (not time) */
877 #define IWL_TRAFFIC_ENTRIES (256)
878 #define IWL_TRAFFIC_ENTRY_SIZE (64)
881 MEASUREMENT_READY
= (1 << 0),
882 MEASUREMENT_ACTIVE
= (1 << 1),
886 NVM_DEVICE_TYPE_EEPROM
= 0,
891 * Two types of OTP memory access modes
892 * IWL_OTP_ACCESS_ABSOLUTE - absolute address mode,
893 * based on physical memory addressing
894 * IWL_OTP_ACCESS_RELATIVE - relative address mode,
895 * based on logical memory addressing
897 enum iwl_access_mode
{
898 IWL_OTP_ACCESS_ABSOLUTE
,
899 IWL_OTP_ACCESS_RELATIVE
,
903 * enum iwl_pa_type - Power Amplifier type
904 * @IWL_PA_SYSTEM: based on uCode configuration
905 * @IWL_PA_INTERNAL: use Internal only
912 /* interrupt statistics */
913 struct isr_statistics
{
923 u32 rx_handlers
[REPLY_MAX
];
928 #ifdef CONFIG_IWLWIFI_DEBUGFS
929 /* management statistics */
930 enum iwl_mgmt_stats
{
931 MANAGEMENT_ASSOC_REQ
= 0,
932 MANAGEMENT_ASSOC_RESP
,
933 MANAGEMENT_REASSOC_REQ
,
934 MANAGEMENT_REASSOC_RESP
,
935 MANAGEMENT_PROBE_REQ
,
936 MANAGEMENT_PROBE_RESP
,
945 /* control statistics */
946 enum iwl_ctrl_stats
{
947 CONTROL_BACK_REQ
= 0,
958 struct traffic_stats
{
959 u32 mgmt
[MANAGEMENT_MAX
];
960 u32 ctrl
[CONTROL_MAX
];
965 struct traffic_stats
{
971 * iwl_switch_rxon: "channel switch" structure
973 * @ switch_in_progress: channel switch in progress
974 * @ channel: new channel
976 struct iwl_switch_rxon
{
977 bool switch_in_progress
;
982 * schedule the timer to wake up every UCODE_TRACE_PERIOD milliseconds
983 * to perform continuous uCode event logging operation if enabled
985 #define UCODE_TRACE_PERIOD (100)
988 * iwl_event_log: current uCode event log position
990 * @ucode_trace: enable/disable ucode continuous trace timer
991 * @num_wraps: how many times the event buffer wraps
992 * @next_entry: the entry just before the next one that uCode would fill
993 * @non_wraps_count: counter for no wrap detected when dump ucode events
994 * @wraps_once_count: counter for wrap once detected when dump ucode events
995 * @wraps_more_count: counter for wrap more than once detected
996 * when dump ucode events
998 struct iwl_event_log
{
1002 int non_wraps_count
;
1003 int wraps_once_count
;
1004 int wraps_more_count
;
1008 * host interrupt timeout value
1009 * used with setting interrupt coalescing timer
1010 * the CSR_INT_COALESCING is an 8 bit register in 32-usec unit
1012 * default interrupt coalescing timer is 64 x 32 = 2048 usecs
1013 * default interrupt coalescing calibration timer is 16 x 32 = 512 usecs
1015 #define IWL_HOST_INT_TIMEOUT_MAX (0xFF)
1016 #define IWL_HOST_INT_TIMEOUT_DEF (0x40)
1017 #define IWL_HOST_INT_TIMEOUT_MIN (0x0)
1018 #define IWL_HOST_INT_CALIB_TIMEOUT_MAX (0xFF)
1019 #define IWL_HOST_INT_CALIB_TIMEOUT_DEF (0x10)
1020 #define IWL_HOST_INT_CALIB_TIMEOUT_MIN (0x0)
1023 * This is the threshold value of plcp error rate per 100mSecs. It is
1024 * used to set and check for the validity of plcp_delta.
1026 #define IWL_MAX_PLCP_ERR_THRESHOLD_MIN (1)
1027 #define IWL_MAX_PLCP_ERR_THRESHOLD_DEF (50)
1028 #define IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF (100)
1029 #define IWL_MAX_PLCP_ERR_EXT_LONG_THRESHOLD_DEF (200)
1030 #define IWL_MAX_PLCP_ERR_THRESHOLD_MAX (255)
1031 #define IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE (0)
1033 #define IWL_DELAY_NEXT_FORCE_RF_RESET (HZ*3)
1034 #define IWL_DELAY_NEXT_FORCE_FW_RELOAD (HZ*5)
1036 /* timer constants use to monitor and recover stuck tx queues in mSecs */
1037 #define IWL_DEF_MONITORING_PERIOD (1000)
1038 #define IWL_LONG_MONITORING_PERIOD (5000)
1039 #define IWL_ONE_HUNDRED_MSECS (100)
1040 #define IWL_SIXTY_SECS (60000)
1045 IWL_MAX_FORCE_RESET
,
1048 struct iwl_force_reset
{
1049 int reset_request_count
;
1050 int reset_success_count
;
1051 int reset_reject_count
;
1052 unsigned long reset_duration
;
1053 unsigned long last_force_reset_jiffies
;
1056 /* extend beacon time format bit shifting */
1059 * bits 31:24 - extended
1060 * bits 23:0 - interval
1062 #define IWL3945_EXT_BEACON_TIME_POS 24
1065 * bits 31:22 - extended
1066 * bits 21:0 - interval
1068 #define IWLAGN_EXT_BEACON_TIME_POS 22
1072 /* ieee device used by generic ieee processing code */
1073 struct ieee80211_hw
*hw
;
1074 struct ieee80211_channel
*ieee_channels
;
1075 struct ieee80211_rate
*ieee_rates
;
1076 struct iwl_cfg
*cfg
;
1078 /* temporary frame storage list */
1079 struct list_head free_frames
;
1082 enum ieee80211_band band
;
1085 void (*rx_handlers
[REPLY_MAX
])(struct iwl_priv
*priv
,
1086 struct iwl_rx_mem_buffer
*rxb
);
1088 struct ieee80211_supported_band bands
[IEEE80211_NUM_BANDS
];
1090 /* spectrum measurement report caching */
1091 struct iwl_spectrum_notification measure_report
;
1092 u8 measurement_status
;
1094 /* ucode beacon time */
1095 u32 ucode_beacon_time
;
1096 int missed_beacon_threshold
;
1098 /* storing the jiffies when the plcp error rate is received */
1099 unsigned long plcp_jiffies
;
1102 struct iwl_force_reset force_reset
[IWL_MAX_FORCE_RESET
];
1104 /* we allocate array of iwl_channel_info for NIC's valid channels.
1105 * Access via channel # using indirect index array */
1106 struct iwl_channel_info
*channel_info
; /* channel info array */
1107 u8 channel_count
; /* # of channels */
1109 /* thermal calibration */
1110 s32 temperature
; /* degrees Kelvin */
1111 s32 last_temperature
;
1113 /* init calibration results */
1114 struct iwl_calib_result calib_results
[IWL_CALIB_MAX
];
1116 /* Scan related variables */
1117 unsigned long scan_start
;
1118 unsigned long scan_start_tsf
;
1120 enum ieee80211_band scan_band
;
1121 struct cfg80211_scan_request
*scan_request
;
1122 struct ieee80211_vif
*scan_vif
;
1123 bool is_internal_short_scan
;
1124 u8 scan_tx_ant
[IEEE80211_NUM_BANDS
];
1128 spinlock_t lock
; /* protect general shared data */
1129 spinlock_t hcmd_lock
; /* protect hcmd */
1130 spinlock_t reg_lock
; /* protect hw register access */
1132 struct mutex sync_cmd_mutex
; /* enable serialization of sync commands */
1134 /* basic pci-network driver stuff */
1135 struct pci_dev
*pci_dev
;
1137 /* pci hardware address support */
1138 void __iomem
*hw_base
;
1143 /* EEPROM MAC addresses */
1144 struct mac_address addresses
[2];
1146 /* uCode images, save to reload in case of failure */
1147 int fw_index
; /* firmware we're trying to load */
1148 u32 ucode_ver
; /* version of ucode, copy of
1150 struct fw_desc ucode_code
; /* runtime inst */
1151 struct fw_desc ucode_data
; /* runtime data original */
1152 struct fw_desc ucode_data_backup
; /* runtime data save/restore */
1153 struct fw_desc ucode_init
; /* initialization inst */
1154 struct fw_desc ucode_init_data
; /* initialization data */
1155 struct fw_desc ucode_boot
; /* bootstrap inst */
1156 enum ucode_type ucode_type
;
1157 u8 ucode_write_complete
; /* the image write is complete */
1158 char firmware_name
[25];
1161 struct iwl_rxon_time_cmd rxon_timing
;
1163 /* We declare this const so it can only be
1164 * changed via explicit cast within the
1165 * routines that actually update the physical
1167 const struct iwl_rxon_cmd active_rxon
;
1168 struct iwl_rxon_cmd staging_rxon
;
1170 struct iwl_switch_rxon switch_rxon
;
1172 /* 1st responses from initialize and runtime uCode images.
1173 * _agn's initialize alive response contains some calibration data. */
1174 struct iwl_init_alive_resp card_alive_init
;
1175 struct iwl_alive_resp card_alive
;
1177 unsigned long last_blink_time
;
1185 struct iwl_sensitivity_data sensitivity_data
;
1186 struct iwl_chain_noise_data chain_noise_data
;
1187 bool enhance_sensitivity_table
;
1188 __le16 sensitivity_tbl
[HD_TABLE_SIZE
];
1189 __le16 enhance_sensitivity_tbl
[ENHANCE_HD_TABLE_ENTRIES
];
1191 struct iwl_ht_config current_ht_config
;
1193 /* Rate scaling data */
1196 wait_queue_head_t wait_command_queue
;
1198 int activity_timer_active
;
1200 /* Rx and Tx DMA processing queues */
1201 struct iwl_rx_queue rxq
;
1202 struct iwl_tx_queue
*txq
;
1203 unsigned long txq_ctx_active_msk
;
1204 struct iwl_dma_ptr kw
; /* keep warm address */
1205 struct iwl_dma_ptr scd_bc_tbls
;
1207 u32 scd_base_addr
; /* scheduler sram base address */
1209 unsigned long status
;
1211 /* counts mgmt, ctl, and data packets */
1212 struct traffic_stats tx_stats
;
1213 struct traffic_stats rx_stats
;
1215 /* counts interrupts */
1216 struct isr_statistics isr_stats
;
1218 struct iwl_power_mgr power_data
;
1219 struct iwl_tt_mgmt thermal_throttle
;
1221 /* context information */
1222 u8 bssid
[ETH_ALEN
]; /* used only on 3945 but filled by core */
1224 /* station table variables */
1226 /* Note: if lock and sta_lock are needed, lock must be acquired first */
1227 spinlock_t sta_lock
;
1229 struct iwl_station_entry stations
[IWL_STATION_COUNT
];
1230 struct iwl_wep_key wep_keys
[WEP_KEYS_MAX
]; /* protected by mutex */
1232 unsigned long ucode_key_table
;
1234 /* queue refcounts */
1235 #define IWL_MAX_HW_QUEUES 32
1236 unsigned long queue_stopped
[BITS_TO_LONGS(IWL_MAX_HW_QUEUES
)];
1238 atomic_t queue_stop_count
[4];
1240 /* Indication if ieee80211_ops->open has been called */
1243 u8 mac80211_registered
;
1245 /* eeprom -- this is in the card's little endian byte order */
1247 int nvm_device_type
;
1248 struct iwl_eeprom_calib_info
*calib_info
;
1250 enum nl80211_iftype iw_mode
;
1252 struct sk_buff
*ibss_beacon
;
1254 /* Last Rx'd beacon timestamp */
1256 struct ieee80211_vif
*vif
;
1259 #if defined(CONFIG_IWL3945) || defined(CONFIG_IWL3945_MODULE)
1262 dma_addr_t shared_phys
;
1264 struct delayed_work thermal_periodic
;
1265 struct delayed_work rfkill_poll
;
1267 struct iwl3945_notif_statistics statistics
;
1268 #ifdef CONFIG_IWLWIFI_DEBUGFS
1269 struct iwl3945_notif_statistics accum_statistics
;
1270 struct iwl3945_notif_statistics delta_statistics
;
1271 struct iwl3945_notif_statistics max_delta
;
1275 int last_rx_rssi
; /* From Rx packet statistics */
1277 /* Rx'd packet timing information */
1278 u32 last_beacon_time
;
1282 * each calibration channel group in the
1283 * EEPROM has a derived clip setting for
1286 const struct iwl3945_clip_group clip_groups
[5];
1290 #if defined(CONFIG_IWLAGN) || defined(CONFIG_IWLAGN_MODULE)
1295 dma_addr_t ict_tbl_dma
;
1296 dma_addr_t aligned_ict_tbl_dma
;
1301 * reporting the number of tids has AGG on. 0 means
1306 struct iwl_rx_phy_res last_phy_res
;
1307 bool last_phy_res_valid
;
1309 struct completion firmware_loading_complete
;
1311 u32 init_evtlog_ptr
, init_evtlog_size
, init_errlog_ptr
;
1312 u32 inst_evtlog_ptr
, inst_evtlog_size
, inst_errlog_ptr
;
1315 * chain noise reset and gain commands are the
1316 * two extra calibration commands follows the standard
1317 * phy calibration commands
1319 u8 phy_calib_chain_noise_reset_cmd
;
1320 u8 phy_calib_chain_noise_gain_cmd
;
1322 struct iwl_notif_statistics statistics
;
1323 struct iwl_bt_notif_statistics statistics_bt
;
1324 #ifdef CONFIG_IWLWIFI_DEBUGFS
1325 struct iwl_notif_statistics accum_statistics
;
1326 struct iwl_notif_statistics delta_statistics
;
1327 struct iwl_notif_statistics max_delta
;
1328 struct iwl_bt_notif_statistics accum_statistics_bt
;
1329 struct iwl_bt_notif_statistics delta_statistics_bt
;
1330 struct iwl_bt_notif_statistics max_delta_bt
;
1336 struct iwl_hw_params hw_params
;
1340 struct iwl_qos_info qos_data
;
1342 struct workqueue_struct
*workqueue
;
1344 struct work_struct restart
;
1345 struct work_struct scan_completed
;
1346 struct work_struct rx_replenish
;
1347 struct work_struct abort_scan
;
1348 struct work_struct beacon_update
;
1349 struct work_struct tt_work
;
1350 struct work_struct ct_enter
;
1351 struct work_struct ct_exit
;
1352 struct work_struct start_internal_scan
;
1353 struct work_struct tx_flush
;
1355 struct tasklet_struct irq_tasklet
;
1357 struct delayed_work init_alive_start
;
1358 struct delayed_work alive_start
;
1359 struct delayed_work scan_check
;
1362 s8 tx_power_user_lmt
;
1363 s8 tx_power_device_lmt
;
1364 s8 tx_power_lmt_in_half_dbm
; /* max tx power in half-dBm format */
1367 #ifdef CONFIG_IWLWIFI_DEBUG
1368 /* debugging info */
1369 u32 debug_level
; /* per device debugging will override global
1370 iwl_debug_level if set */
1371 #endif /* CONFIG_IWLWIFI_DEBUG */
1372 #ifdef CONFIG_IWLWIFI_DEBUGFS
1378 struct dentry
*debugfs_dir
;
1379 u32 dbgfs_sram_offset
, dbgfs_sram_len
;
1381 #endif /* CONFIG_IWLWIFI_DEBUGFS */
1383 struct work_struct txpower_work
;
1384 u32 disable_sens_cal
;
1385 u32 disable_chain_noise_cal
;
1386 u32 disable_tx_power_cal
;
1387 struct work_struct run_time_calib_work
;
1388 struct timer_list statistics_periodic
;
1389 struct timer_list ucode_trace
;
1390 struct timer_list monitor_recover
;
1393 struct iwl_event_log event_log
;
1396 static inline void iwl_txq_ctx_activate(struct iwl_priv
*priv
, int txq_id
)
1398 set_bit(txq_id
, &priv
->txq_ctx_active_msk
);
1401 static inline void iwl_txq_ctx_deactivate(struct iwl_priv
*priv
, int txq_id
)
1403 clear_bit(txq_id
, &priv
->txq_ctx_active_msk
);
1406 #ifdef CONFIG_IWLWIFI_DEBUG
1407 const char *iwl_get_tx_fail_reason(u32 status
);
1409 * iwl_get_debug_level: Return active debug level for device
1411 * Using sysfs it is possible to set per device debug level. This debug
1412 * level will be used if set, otherwise the global debug level which can be
1413 * set via module parameter is used.
1415 static inline u32
iwl_get_debug_level(struct iwl_priv
*priv
)
1417 if (priv
->debug_level
)
1418 return priv
->debug_level
;
1420 return iwl_debug_level
;
1423 static inline const char *iwl_get_tx_fail_reason(u32 status
) { return ""; }
1425 static inline u32
iwl_get_debug_level(struct iwl_priv
*priv
)
1427 return iwl_debug_level
;
1432 static inline struct ieee80211_hdr
*iwl_tx_queue_get_hdr(struct iwl_priv
*priv
,
1433 int txq_id
, int idx
)
1435 if (priv
->txq
[txq_id
].txb
[idx
].skb
)
1436 return (struct ieee80211_hdr
*)priv
->txq
[txq_id
].
1442 static inline int iwl_is_associated(struct iwl_priv
*priv
)
1444 return (priv
->active_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
) ? 1 : 0;
1447 static inline int is_channel_valid(const struct iwl_channel_info
*ch_info
)
1449 if (ch_info
== NULL
)
1451 return (ch_info
->flags
& EEPROM_CHANNEL_VALID
) ? 1 : 0;
1454 static inline int is_channel_radar(const struct iwl_channel_info
*ch_info
)
1456 return (ch_info
->flags
& EEPROM_CHANNEL_RADAR
) ? 1 : 0;
1459 static inline u8
is_channel_a_band(const struct iwl_channel_info
*ch_info
)
1461 return ch_info
->band
== IEEE80211_BAND_5GHZ
;
1464 static inline u8
is_channel_bg_band(const struct iwl_channel_info
*ch_info
)
1466 return ch_info
->band
== IEEE80211_BAND_2GHZ
;
1469 static inline int is_channel_passive(const struct iwl_channel_info
*ch
)
1471 return (!(ch
->flags
& EEPROM_CHANNEL_ACTIVE
)) ? 1 : 0;
1474 static inline int is_channel_ibss(const struct iwl_channel_info
*ch
)
1476 return ((ch
->flags
& EEPROM_CHANNEL_IBSS
)) ? 1 : 0;
1479 static inline void __iwl_free_pages(struct iwl_priv
*priv
, struct page
*page
)
1481 __free_pages(page
, priv
->hw_params
.rx_page_order
);
1482 priv
->alloc_rxb_page
--;
1485 static inline void iwl_free_pages(struct iwl_priv
*priv
, unsigned long page
)
1487 free_pages(page
, priv
->hw_params
.rx_page_order
);
1488 priv
->alloc_rxb_page
--;
1490 #endif /* __iwl_dev_h__ */