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"
51 /* configuration for the iwl4965 */
52 extern struct iwl_cfg iwl4965_agn_cfg
;
53 extern struct iwl_cfg iwl5300_agn_cfg
;
54 extern struct iwl_cfg iwl5100_agn_cfg
;
55 extern struct iwl_cfg iwl5350_agn_cfg
;
56 extern struct iwl_cfg iwl5100_bgn_cfg
;
57 extern struct iwl_cfg iwl5100_abg_cfg
;
58 extern struct iwl_cfg iwl5150_agn_cfg
;
59 extern struct iwl_cfg iwl5150_abg_cfg
;
60 extern struct iwl_cfg iwl6000i_2agn_cfg
;
61 extern struct iwl_cfg iwl6000i_g2_2agn_cfg
;
62 extern struct iwl_cfg iwl6000i_2abg_cfg
;
63 extern struct iwl_cfg iwl6000i_2bg_cfg
;
64 extern struct iwl_cfg iwl6000_3agn_cfg
;
65 extern struct iwl_cfg iwl6050_2agn_cfg
;
66 extern struct iwl_cfg iwl6050_2abg_cfg
;
67 extern struct iwl_cfg iwl1000_bgn_cfg
;
68 extern struct iwl_cfg iwl1000_bg_cfg
;
72 /* CT-KILL constants */
73 #define CT_KILL_THRESHOLD_LEGACY 110 /* in Celsius */
74 #define CT_KILL_THRESHOLD 114 /* in Celsius */
75 #define CT_KILL_EXIT_THRESHOLD 95 /* in Celsius */
77 /* Default noise level to report when noise measurement is not available.
78 * This may be because we're:
79 * 1) Not associated (4965, no beacon statistics being sent to driver)
80 * 2) Scanning (noise measurement does not apply to associated channel)
81 * 3) Receiving CCK (3945 delivers noise info only for OFDM frames)
82 * Use default noise value of -127 ... this is below the range of measurable
83 * Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
84 * Also, -127 works better than 0 when averaging frames with/without
85 * noise info (e.g. averaging might be done in app); measured dBm values are
86 * always negative ... using a negative value as the default keeps all
87 * averages within an s8's (used in some apps) range of negative values. */
88 #define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
91 * RTS threshold here is total size [2347] minus 4 FCS bytes
93 * a value of 0 means RTS on all data/management packets
94 * a value > max MSDU size means no RTS
95 * else RTS for data/management frames where MPDU is larger
98 #define DEFAULT_RTS_THRESHOLD 2347U
99 #define MIN_RTS_THRESHOLD 0U
100 #define MAX_RTS_THRESHOLD 2347U
101 #define MAX_MSDU_SIZE 2304U
102 #define MAX_MPDU_SIZE 2346U
103 #define DEFAULT_BEACON_INTERVAL 100U
104 #define DEFAULT_SHORT_RETRY_LIMIT 7U
105 #define DEFAULT_LONG_RETRY_LIMIT 4U
107 struct iwl_rx_mem_buffer
{
110 struct list_head list
;
113 #define rxb_addr(r) page_address(r->page)
116 struct iwl_device_cmd
;
118 struct iwl_cmd_meta
{
119 /* only for SYNC commands, iff the reply skb is wanted */
120 struct iwl_host_cmd
*source
;
122 * only for ASYNC commands
123 * (which is somewhat stupid -- look at iwl-sta.c for instance
124 * which duplicates a bunch of code because the callback isn't
125 * invoked for SYNC commands, if it were and its result passed
126 * through it would be simpler...)
128 void (*callback
)(struct iwl_priv
*priv
,
129 struct iwl_device_cmd
*cmd
,
130 struct iwl_rx_packet
*pkt
);
132 /* The CMD_SIZE_HUGE flag bit indicates that the command
133 * structure is stored at the end of the shared queue memory. */
136 DECLARE_PCI_UNMAP_ADDR(mapping
)
137 DECLARE_PCI_UNMAP_LEN(len
)
141 * Generic queue structure
143 * Contains common data for Rx and Tx queues
146 int n_bd
; /* number of BDs in this queue */
147 int write_ptr
; /* 1-st empty entry (index) host_w*/
148 int read_ptr
; /* last used entry (index) host_r*/
149 /* use for monitoring and recovering the stuck queue */
150 int last_read_ptr
; /* storing the last read_ptr */
151 /* number of time read_ptr and last_read_ptr are the same */
152 u8 repeat_same_read_ptr
;
153 dma_addr_t dma_addr
; /* physical addr for BD's */
154 int n_window
; /* safe queue window */
156 int low_mark
; /* low watermark, resume queue if free
157 * space more than this */
158 int high_mark
; /* high watermark, stop queue if free
159 * space less than this */
160 } __attribute__ ((packed
));
162 /* One for each TFD */
164 struct sk_buff
*skb
[IWL_NUM_OF_TBS
- 1];
168 * struct iwl_tx_queue - Tx Queue for DMA
169 * @q: generic Rx/Tx queue descriptor
170 * @bd: base of circular buffer of TFDs
171 * @cmd: array of command/TX buffer pointers
172 * @meta: array of meta data for each command/tx buffer
173 * @dma_addr_cmd: physical address of cmd/tx buffer array
174 * @txb: array of per-TFD driver data
175 * @need_update: indicates need to update read/write index
176 * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
178 * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
179 * descriptors) and required locking structures.
181 #define TFD_TX_CMD_SLOTS 256
182 #define TFD_CMD_SLOTS 32
184 struct iwl_tx_queue
{
187 struct iwl_device_cmd
**cmd
;
188 struct iwl_cmd_meta
*meta
;
189 struct iwl_tx_info
*txb
;
196 #define IWL_NUM_SCAN_RATES (2)
198 struct iwl4965_channel_tgd_info
{
203 struct iwl4965_channel_tgh_info
{
207 #define IWL4965_MAX_RATE (33)
209 struct iwl3945_clip_group
{
210 /* maximum power level to prevent clipping for each rate, derived by
211 * us from this band's saturation power in EEPROM */
212 const s8 clip_powers
[IWL_MAX_RATES
];
215 /* current Tx power values to use, one for each rate for each channel.
216 * requested power is limited by:
217 * -- regulatory EEPROM limits for this channel
218 * -- hardware capabilities (clip-powers)
219 * -- spectrum management
220 * -- user preference (e.g. iwconfig)
221 * when requested power is set, base power index must also be set. */
222 struct iwl3945_channel_power_info
{
223 struct iwl3945_tx_power tpc
; /* actual radio and DSP gain settings */
224 s8 power_table_index
; /* actual (compenst'd) index into gain table */
225 s8 base_power_index
; /* gain index for power at factory temp. */
226 s8 requested_power
; /* power (dBm) requested for this chnl/rate */
229 /* current scan Tx power values to use, one for each scan rate for each
231 struct iwl3945_scan_power_info
{
232 struct iwl3945_tx_power tpc
; /* actual radio and DSP gain settings */
233 s8 power_table_index
; /* actual (compenst'd) index into gain table */
234 s8 requested_power
; /* scan pwr (dBm) requested for chnl/rate */
238 * One for each channel, holds all channel setup data
239 * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
242 struct iwl_channel_info
{
243 struct iwl4965_channel_tgd_info tgd
;
244 struct iwl4965_channel_tgh_info tgh
;
245 struct iwl_eeprom_channel eeprom
; /* EEPROM regulatory limit */
246 struct iwl_eeprom_channel ht40_eeprom
; /* EEPROM regulatory limit for
249 u8 channel
; /* channel number */
250 u8 flags
; /* flags copied from EEPROM */
251 s8 max_power_avg
; /* (dBm) regul. eeprom, normal Tx, any rate */
252 s8 curr_txpow
; /* (dBm) regulatory/spectrum/user (not h/w) limit */
253 s8 min_power
; /* always 0 */
254 s8 scan_power
; /* (dBm) regul. eeprom, direct scans, any rate */
256 u8 group_index
; /* 0-4, maps channel to group1/2/3/4/5 */
257 u8 band_index
; /* 0-4, maps channel to band1/2/3/4/5 */
258 enum ieee80211_band band
;
260 /* HT40 channel info */
261 s8 ht40_max_power_avg
; /* (dBm) regul. eeprom, normal Tx, any rate */
262 u8 ht40_flags
; /* flags copied from EEPROM */
263 u8 ht40_extension_channel
; /* HT_IE_EXT_CHANNEL_* */
265 /* Radio/DSP gain settings for each "normal" data Tx rate.
266 * These include, in addition to RF and DSP gain, a few fields for
267 * remembering/modifying gain settings (indexes). */
268 struct iwl3945_channel_power_info power_info
[IWL4965_MAX_RATE
];
270 /* Radio/DSP gain settings for each scan rate, for directed scans. */
271 struct iwl3945_scan_power_info scan_pwr_info
[IWL_NUM_SCAN_RATES
];
274 #define IWL_TX_FIFO_BK 0
275 #define IWL_TX_FIFO_BE 1
276 #define IWL_TX_FIFO_VI 2
277 #define IWL_TX_FIFO_VO 3
278 #define IWL_TX_FIFO_UNUSED -1
280 /* Minimum number of queues. MAX_NUM is defined in hw specific files.
281 * Set the minimum to accommodate the 4 standard TX queues, 1 command
282 * queue, 2 (unused) HCCA queues, and 4 HT queues (one for each AC) */
283 #define IWL_MIN_NUM_QUEUES 10
286 * Queue #4 is the command queue for 3945/4965/5x00/1000/6x00,
287 * the driver maps it into the appropriate device FIFO for the
290 #define IWL_CMD_QUEUE_NUM 4
292 /* Power management (not Tx power) structures */
299 #define IEEE80211_DATA_LEN 2304
300 #define IEEE80211_4ADDR_LEN 30
301 #define IEEE80211_HLEN (IEEE80211_4ADDR_LEN)
302 #define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
306 struct ieee80211_hdr frame
;
307 struct iwl_tx_beacon_cmd beacon
;
308 u8 raw
[IEEE80211_FRAME_LEN
];
311 struct list_head list
;
314 #define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
315 #define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
316 #define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
322 CMD_SIZE_HUGE
= (1 << 0),
323 CMD_ASYNC
= (1 << 1),
324 CMD_WANT_SKB
= (1 << 2),
327 #define DEF_CMD_PAYLOAD_SIZE 320
330 * struct iwl_device_cmd
332 * For allocation of the command and tx queues, this establishes the overall
333 * size of the largest command we send to uCode, except for a scan command
334 * (which is relatively huge; space is allocated separately).
336 struct iwl_device_cmd
{
337 struct iwl_cmd_header hdr
; /* uCode API */
343 struct iwl_tx_cmd tx
;
344 struct iwl6000_channel_switch_cmd chswitch
;
345 u8 payload
[DEF_CMD_PAYLOAD_SIZE
];
346 } __attribute__ ((packed
)) cmd
;
347 } __attribute__ ((packed
));
349 #define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_device_cmd))
352 struct iwl_host_cmd
{
354 unsigned long reply_page
;
355 void (*callback
)(struct iwl_priv
*priv
,
356 struct iwl_device_cmd
*cmd
,
357 struct iwl_rx_packet
*pkt
);
363 #define SUP_RATE_11A_MAX_NUM_CHANNELS 8
364 #define SUP_RATE_11B_MAX_NUM_CHANNELS 4
365 #define SUP_RATE_11G_MAX_NUM_CHANNELS 12
368 * struct iwl_rx_queue - Rx queue
369 * @bd: driver's pointer to buffer of receive buffer descriptors (rbd)
370 * @dma_addr: bus address of buffer of receive buffer descriptors (rbd)
371 * @read: Shared index to newest available Rx buffer
372 * @write: Shared index to oldest written Rx packet
373 * @free_count: Number of pre-allocated buffers in rx_free
374 * @rx_free: list of free SKBs for use
375 * @rx_used: List of Rx buffers with no SKB
376 * @need_update: flag to indicate we need to update read/write index
377 * @rb_stts: driver's pointer to receive buffer status
378 * @rb_stts_dma: bus address of receive buffer status
380 * NOTE: rx_free and rx_used are used as a FIFO for iwl_rx_mem_buffers
382 struct iwl_rx_queue
{
385 struct iwl_rx_mem_buffer pool
[RX_QUEUE_SIZE
+ RX_FREE_BUFFERS
];
386 struct iwl_rx_mem_buffer
*queue
[RX_QUEUE_SIZE
];
391 struct list_head rx_free
;
392 struct list_head rx_used
;
394 struct iwl_rb_status
*rb_stts
;
395 dma_addr_t rb_stts_dma
;
399 #define IWL_SUPPORTED_RATES_IE_LEN 8
401 #define MAX_TID_COUNT 9
403 #define IWL_INVALID_RATE 0xFF
404 #define IWL_INVALID_VALUE -1
407 * struct iwl_ht_agg -- aggregation status while waiting for block-ack
408 * @txq_id: Tx queue used for Tx attempt
409 * @frame_count: # frames attempted by Tx command
410 * @wait_for_ba: Expect block-ack before next Tx reply
411 * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window
412 * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window
413 * @bitmap1: High order, one bit for each frame pending ACK in Tx window
414 * @rate_n_flags: Rate at which Tx was attempted
416 * If REPLY_TX indicates that aggregation was attempted, driver must wait
417 * for block ack (REPLY_COMPRESSED_BA). This struct stores tx reply info
418 * until block ack arrives.
427 #define IWL_AGG_OFF 0
429 #define IWL_EMPTYING_HW_QUEUE_ADDBA 2
430 #define IWL_EMPTYING_HW_QUEUE_DELBA 3
435 struct iwl_tid_data
{
438 struct iwl_ht_agg agg
;
442 enum ieee80211_key_alg alg
;
448 union iwl_ht_rate_supp
{
456 #define CFG_HT_RX_AMPDU_FACTOR_DEF (0x3)
459 * Maximal MPDU density for TX aggregation
465 #define CFG_HT_MPDU_DENSITY_4USEC (0x5)
466 #define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_4USEC
468 struct iwl_ht_config
{
469 /* self configuration data */
472 bool single_chain_sufficient
;
473 enum ieee80211_smps_mode smps
; /* current smps mode */
474 /* BSS related data */
475 u8 extension_chan_offset
;
477 u8 non_GF_STA_present
;
481 struct iwl_qos_info
{
483 struct iwl_qosparam_cmd def_qos_parm
;
487 * Structure should be accessed with sta_lock held. When station addition
488 * is in progress (IWL_STA_UCODE_INPROGRESS) it is possible to access only
489 * the commands (iwl_addsta_cmd and iwl_link_quality_cmd) without sta_lock
492 struct iwl_station_entry
{
493 struct iwl_addsta_cmd sta
;
494 struct iwl_tid_data tid
[MAX_TID_COUNT
];
496 struct iwl_hw_key keyinfo
;
497 struct iwl_link_quality_cmd
*lq
;
501 * iwl_station_priv: Driver's private station information
503 * When mac80211 creates a station it reserves some space (hw->sta_data_size)
504 * in the structure for use by driver. This structure is places in that
507 struct iwl_station_priv
{
508 struct iwl_lq_sta lq_sta
;
509 atomic_t pending_frames
;
514 /* one for each uCode image (inst/data, boot/init/runtime) */
516 void *v_addr
; /* access by driver */
517 dma_addr_t p_addr
; /* access by card's busmaster DMA */
521 /* uCode file layout */
522 struct iwl_ucode_header
{
523 __le32 ver
; /* major/minor/API/serial */
526 __le32 inst_size
; /* bytes of runtime code */
527 __le32 data_size
; /* bytes of runtime data */
528 __le32 init_size
; /* bytes of init code */
529 __le32 init_data_size
; /* bytes of init data */
530 __le32 boot_size
; /* bytes of bootstrap code */
531 u8 data
[0]; /* in same order as sizes */
534 __le32 build
; /* build number */
535 __le32 inst_size
; /* bytes of runtime code */
536 __le32 data_size
; /* bytes of runtime data */
537 __le32 init_size
; /* bytes of init code */
538 __le32 init_data_size
; /* bytes of init data */
539 __le32 boot_size
; /* bytes of bootstrap code */
540 u8 data
[0]; /* in same order as sizes */
544 #define UCODE_HEADER_SIZE(ver) ((ver) == 1 ? 24 : 28)
546 struct iwl4965_ibss_seq
{
550 unsigned long packet_time
;
551 struct list_head list
;
554 struct iwl_sensitivity_ranges
{
561 u16 auto_corr_min_ofdm
;
562 u16 auto_corr_min_ofdm_mrc
;
563 u16 auto_corr_min_ofdm_x1
;
564 u16 auto_corr_min_ofdm_mrc_x1
;
566 u16 auto_corr_max_ofdm
;
567 u16 auto_corr_max_ofdm_mrc
;
568 u16 auto_corr_max_ofdm_x1
;
569 u16 auto_corr_max_ofdm_mrc_x1
;
571 u16 auto_corr_max_cck
;
572 u16 auto_corr_max_cck_mrc
;
573 u16 auto_corr_min_cck
;
574 u16 auto_corr_min_cck_mrc
;
576 u16 barker_corr_th_min
;
577 u16 barker_corr_th_min_mrc
;
582 #define KELVIN_TO_CELSIUS(x) ((x)-273)
583 #define CELSIUS_TO_KELVIN(x) ((x)+273)
587 * struct iwl_hw_params
588 * @max_txq_num: Max # Tx queues supported
589 * @dma_chnl_num: Number of Tx DMA/FIFO channels
590 * @scd_bc_tbls_size: size of scheduler byte count tables
591 * @tfd_size: TFD size
592 * @tx/rx_chains_num: Number of TX/RX chains
593 * @valid_tx/rx_ant: usable antennas
594 * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
595 * @max_rxq_log: Log-base-2 of max_rxq_size
596 * @rx_page_order: Rx buffer page order
597 * @rx_wrt_ptr_reg: FH{39}_RSCSR_CHNL0_WPTR
600 * @ht40_channel: is 40MHz width possible in band 2.4
601 * BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ)
602 * @sw_crypto: 0 for hw, 1 for sw
603 * @max_xxx_size: for ucode uses
604 * @ct_kill_threshold: temperature threshold
605 * @calib_init_cfg: setup initial calibrations for the hw
606 * @struct iwl_sensitivity_ranges: range of sensitivity values
608 struct iwl_hw_params
{
611 u16 scd_bc_tbls_size
;
624 u8 max_beacon_itrvl
; /* in 1024 ms */
628 u32 ct_kill_threshold
; /* value in hw-dependent units */
629 u32 ct_kill_exit_threshold
; /* value in hw-dependent units */
630 /* for 1000, 6000 series and up */
632 const struct iwl_sensitivity_ranges
*sens
;
636 /******************************************************************************
638 * Functions implemented in core module which are forward declared here
639 * for use by iwl-[4-5].c
641 * NOTE: The implementation of these functions are not hardware specific
642 * which is why they are in the core module files.
644 * Naming convention --
645 * iwl_ <-- Is part of iwlwifi
646 * iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
647 * iwl4965_bg_ <-- Called from work queue context
648 * iwl4965_mac_ <-- mac80211 callback
650 ****************************************************************************/
651 extern void iwl_update_chain_flags(struct iwl_priv
*priv
);
652 extern int iwl_set_pwr_src(struct iwl_priv
*priv
, enum iwl_pwr_src src
);
653 extern const u8 iwl_bcast_addr
[ETH_ALEN
];
654 extern int iwl_rxq_stop(struct iwl_priv
*priv
);
655 extern void iwl_txq_ctx_stop(struct iwl_priv
*priv
);
656 extern int iwl_queue_space(const struct iwl_queue
*q
);
657 static inline int iwl_queue_used(const struct iwl_queue
*q
, int i
)
659 return q
->write_ptr
>= q
->read_ptr
?
660 (i
>= q
->read_ptr
&& i
< q
->write_ptr
) :
661 !(i
< q
->read_ptr
&& i
>= q
->write_ptr
);
665 static inline u8
get_cmd_index(struct iwl_queue
*q
, u32 index
, int is_huge
)
668 * This is for init calibration result and scan command which
669 * required buffer > TFD_MAX_PAYLOAD_SIZE,
670 * the big buffer at end of command array
673 return q
->n_window
; /* must be power of 2 */
675 /* Otherwise, use normal size buffers */
676 return index
& (q
->n_window
- 1);
686 #define IWL_OPERATION_MODE_AUTO 0
687 #define IWL_OPERATION_MODE_HT_ONLY 1
688 #define IWL_OPERATION_MODE_MIXED 2
689 #define IWL_OPERATION_MODE_20MHZ 3
691 #define IWL_TX_CRC_SIZE 4
692 #define IWL_TX_DELIMITER_SIZE 4
694 #define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
696 /* Sensitivity and chain noise calibration */
697 #define INITIALIZATION_VALUE 0xFFFF
698 #define IWL4965_CAL_NUM_BEACONS 20
699 #define IWL_CAL_NUM_BEACONS 16
700 #define MAXIMUM_ALLOWED_PATHLOSS 15
702 #define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
704 #define MAX_FA_OFDM 50
705 #define MIN_FA_OFDM 5
706 #define MAX_FA_CCK 50
709 #define AUTO_CORR_STEP_OFDM 1
711 #define AUTO_CORR_STEP_CCK 3
712 #define AUTO_CORR_MAX_TH_CCK 160
715 #define NRG_STEP_CCK 2
717 #define MAX_NUMBER_CCK_NO_FA 100
719 #define AUTO_CORR_CCK_MIN_VAL_DEF (125)
724 #define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
725 #define ALL_BAND_FILTER 0xFF00
726 #define IN_BAND_FILTER 0xFF
727 #define MIN_AVERAGE_NOISE_MAX_VALUE 0xFFFFFFFF
729 #define NRG_NUM_PREV_STAT_L 20
730 #define NUM_RX_CHAINS 3
732 enum iwl4965_false_alarm_state
{
735 IWL_FA_GOOD_RANGE
= 2,
738 enum iwl4965_chain_noise_state
{
739 IWL_CHAIN_NOISE_ALIVE
= 0, /* must be 0 */
740 IWL_CHAIN_NOISE_ACCUMULATE
,
741 IWL_CHAIN_NOISE_CALIBRATED
,
742 IWL_CHAIN_NOISE_DONE
,
745 enum iwl4965_calib_enabled_state
{
746 IWL_CALIB_DISABLED
= 0, /* must be 0 */
747 IWL_CALIB_ENABLED
= 1,
753 * defines the order in which results of initial calibrations
754 * should be sent to the runtime uCode
761 IWL_CALIB_TX_IQ_PERD
,
766 /* Opaque calibration results */
767 struct iwl_calib_result
{
778 /* Sensitivity calib data */
779 struct iwl_sensitivity_data
{
781 u32 auto_corr_ofdm_mrc
;
782 u32 auto_corr_ofdm_x1
;
783 u32 auto_corr_ofdm_mrc_x1
;
785 u32 auto_corr_cck_mrc
;
787 u32 last_bad_plcp_cnt_ofdm
;
788 u32 last_fa_cnt_ofdm
;
789 u32 last_bad_plcp_cnt_cck
;
795 u8 nrg_silence_rssi
[NRG_NUM_PREV_STAT_L
];
800 s32 nrg_auto_corr_silence_diff
;
801 u32 num_in_cck_no_fa
;
804 u16 barker_corr_th_min
;
805 u16 barker_corr_th_min_mrc
;
809 /* Chain noise (differential Rx gain) calib data */
810 struct iwl_chain_noise_data
{
819 u8 disconn_array
[NUM_RX_CHAINS
];
820 u8 delta_gain_code
[NUM_RX_CHAINS
];
825 #define EEPROM_SEM_TIMEOUT 10 /* milliseconds */
826 #define EEPROM_SEM_RETRY_LIMIT 1000 /* number of attempts (not time) */
828 #define IWL_TRAFFIC_ENTRIES (256)
829 #define IWL_TRAFFIC_ENTRY_SIZE (64)
832 MEASUREMENT_READY
= (1 << 0),
833 MEASUREMENT_ACTIVE
= (1 << 1),
837 NVM_DEVICE_TYPE_EEPROM
= 0,
842 * Two types of OTP memory access modes
843 * IWL_OTP_ACCESS_ABSOLUTE - absolute address mode,
844 * based on physical memory addressing
845 * IWL_OTP_ACCESS_RELATIVE - relative address mode,
846 * based on logical memory addressing
848 enum iwl_access_mode
{
849 IWL_OTP_ACCESS_ABSOLUTE
,
850 IWL_OTP_ACCESS_RELATIVE
,
854 * enum iwl_pa_type - Power Amplifier type
855 * @IWL_PA_SYSTEM: based on uCode configuration
856 * @IWL_PA_INTERNAL: use Internal only
863 /* interrupt statistics */
864 struct isr_statistics
{
874 u32 rx_handlers
[REPLY_MAX
];
879 #ifdef CONFIG_IWLWIFI_DEBUGFS
880 /* management statistics */
881 enum iwl_mgmt_stats
{
882 MANAGEMENT_ASSOC_REQ
= 0,
883 MANAGEMENT_ASSOC_RESP
,
884 MANAGEMENT_REASSOC_REQ
,
885 MANAGEMENT_REASSOC_RESP
,
886 MANAGEMENT_PROBE_REQ
,
887 MANAGEMENT_PROBE_RESP
,
896 /* control statistics */
897 enum iwl_ctrl_stats
{
898 CONTROL_BACK_REQ
= 0,
909 struct traffic_stats
{
910 u32 mgmt
[MANAGEMENT_MAX
];
911 u32 ctrl
[CONTROL_MAX
];
916 struct traffic_stats
{
922 * iwl_switch_rxon: "channel switch" structure
924 * @ switch_in_progress: channel switch in progress
925 * @ channel: new channel
927 struct iwl_switch_rxon
{
928 bool switch_in_progress
;
933 * schedule the timer to wake up every UCODE_TRACE_PERIOD milliseconds
934 * to perform continuous uCode event logging operation if enabled
936 #define UCODE_TRACE_PERIOD (100)
939 * iwl_event_log: current uCode event log position
941 * @ucode_trace: enable/disable ucode continuous trace timer
942 * @num_wraps: how many times the event buffer wraps
943 * @next_entry: the entry just before the next one that uCode would fill
944 * @non_wraps_count: counter for no wrap detected when dump ucode events
945 * @wraps_once_count: counter for wrap once detected when dump ucode events
946 * @wraps_more_count: counter for wrap more than once detected
947 * when dump ucode events
949 struct iwl_event_log
{
954 int wraps_once_count
;
955 int wraps_more_count
;
959 * host interrupt timeout value
960 * used with setting interrupt coalescing timer
961 * the CSR_INT_COALESCING is an 8 bit register in 32-usec unit
963 * default interrupt coalescing timer is 64 x 32 = 2048 usecs
964 * default interrupt coalescing calibration timer is 16 x 32 = 512 usecs
966 #define IWL_HOST_INT_TIMEOUT_MAX (0xFF)
967 #define IWL_HOST_INT_TIMEOUT_DEF (0x40)
968 #define IWL_HOST_INT_TIMEOUT_MIN (0x0)
969 #define IWL_HOST_INT_CALIB_TIMEOUT_MAX (0xFF)
970 #define IWL_HOST_INT_CALIB_TIMEOUT_DEF (0x10)
971 #define IWL_HOST_INT_CALIB_TIMEOUT_MIN (0x0)
974 * This is the threshold value of plcp error rate per 100mSecs. It is
975 * used to set and check for the validity of plcp_delta.
977 #define IWL_MAX_PLCP_ERR_THRESHOLD_MIN (0)
978 #define IWL_MAX_PLCP_ERR_THRESHOLD_DEF (50)
979 #define IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF (100)
980 #define IWL_MAX_PLCP_ERR_EXT_LONG_THRESHOLD_DEF (200)
981 #define IWL_MAX_PLCP_ERR_THRESHOLD_MAX (255)
983 #define IWL_DELAY_NEXT_FORCE_RF_RESET (HZ*3)
984 #define IWL_DELAY_NEXT_FORCE_FW_RELOAD (HZ*5)
986 /* timer constants use to monitor and recover stuck tx queues in mSecs */
987 #define IWL_MONITORING_PERIOD (1000)
988 #define IWL_ONE_HUNDRED_MSECS (100)
989 #define IWL_SIXTY_SECS (60000)
997 struct iwl_force_reset
{
998 int reset_request_count
;
999 int reset_success_count
;
1000 int reset_reject_count
;
1001 unsigned long reset_duration
;
1002 unsigned long last_force_reset_jiffies
;
1007 /* ieee device used by generic ieee processing code */
1008 struct ieee80211_hw
*hw
;
1009 struct ieee80211_channel
*ieee_channels
;
1010 struct ieee80211_rate
*ieee_rates
;
1011 struct iwl_cfg
*cfg
;
1013 /* temporary frame storage list */
1014 struct list_head free_frames
;
1017 enum ieee80211_band band
;
1020 void (*rx_handlers
[REPLY_MAX
])(struct iwl_priv
*priv
,
1021 struct iwl_rx_mem_buffer
*rxb
);
1023 struct ieee80211_supported_band bands
[IEEE80211_NUM_BANDS
];
1025 /* spectrum measurement report caching */
1026 struct iwl_spectrum_notification measure_report
;
1027 u8 measurement_status
;
1029 /* ucode beacon time */
1030 u32 ucode_beacon_time
;
1031 int missed_beacon_threshold
;
1033 /* storing the jiffies when the plcp error rate is received */
1034 unsigned long plcp_jiffies
;
1037 struct iwl_force_reset force_reset
[IWL_MAX_FORCE_RESET
];
1039 /* we allocate array of iwl4965_channel_info for NIC's valid channels.
1040 * Access via channel # using indirect index array */
1041 struct iwl_channel_info
*channel_info
; /* channel info array */
1042 u8 channel_count
; /* # of channels */
1044 /* thermal calibration */
1045 s32 temperature
; /* degrees Kelvin */
1046 s32 last_temperature
;
1048 /* init calibration results */
1049 struct iwl_calib_result calib_results
[IWL_CALIB_MAX
];
1051 /* Scan related variables */
1052 unsigned long next_scan_jiffies
;
1053 unsigned long scan_start
;
1054 unsigned long scan_pass_start
;
1055 unsigned long scan_start_tsf
;
1058 struct cfg80211_scan_request
*scan_request
;
1059 bool is_internal_short_scan
;
1060 u8 scan_tx_ant
[IEEE80211_NUM_BANDS
];
1064 spinlock_t lock
; /* protect general shared data */
1065 spinlock_t hcmd_lock
; /* protect hcmd */
1066 spinlock_t reg_lock
; /* protect hw register access */
1068 struct mutex sync_cmd_mutex
; /* enable serialization of sync commands */
1070 /* basic pci-network driver stuff */
1071 struct pci_dev
*pci_dev
;
1073 /* pci hardware address support */
1074 void __iomem
*hw_base
;
1079 /* uCode images, save to reload in case of failure */
1080 int fw_index
; /* firmware we're trying to load */
1081 u32 ucode_ver
; /* version of ucode, copy of
1083 struct fw_desc ucode_code
; /* runtime inst */
1084 struct fw_desc ucode_data
; /* runtime data original */
1085 struct fw_desc ucode_data_backup
; /* runtime data save/restore */
1086 struct fw_desc ucode_init
; /* initialization inst */
1087 struct fw_desc ucode_init_data
; /* initialization data */
1088 struct fw_desc ucode_boot
; /* bootstrap inst */
1089 enum ucode_type ucode_type
;
1090 u8 ucode_write_complete
; /* the image write is complete */
1091 char firmware_name
[25];
1094 struct iwl_rxon_time_cmd rxon_timing
;
1096 /* We declare this const so it can only be
1097 * changed via explicit cast within the
1098 * routines that actually update the physical
1100 const struct iwl_rxon_cmd active_rxon
;
1101 struct iwl_rxon_cmd staging_rxon
;
1103 struct iwl_switch_rxon switch_rxon
;
1105 /* 1st responses from initialize and runtime uCode images.
1106 * 4965's initialize alive response contains some calibration data. */
1107 struct iwl_init_alive_resp card_alive_init
;
1108 struct iwl_alive_resp card_alive
;
1110 unsigned long last_blink_time
;
1118 struct iwl_sensitivity_data sensitivity_data
;
1119 struct iwl_chain_noise_data chain_noise_data
;
1120 __le16 sensitivity_tbl
[HD_TABLE_SIZE
];
1122 struct iwl_ht_config current_ht_config
;
1124 /* Rate scaling data */
1127 wait_queue_head_t wait_command_queue
;
1129 int activity_timer_active
;
1131 /* Rx and Tx DMA processing queues */
1132 struct iwl_rx_queue rxq
;
1133 struct iwl_tx_queue
*txq
;
1134 unsigned long txq_ctx_active_msk
;
1135 struct iwl_dma_ptr kw
; /* keep warm address */
1136 struct iwl_dma_ptr scd_bc_tbls
;
1138 u32 scd_base_addr
; /* scheduler sram base address */
1140 unsigned long status
;
1142 /* counts mgmt, ctl, and data packets */
1143 struct traffic_stats tx_stats
;
1144 struct traffic_stats rx_stats
;
1146 /* counts interrupts */
1147 struct isr_statistics isr_stats
;
1149 struct iwl_power_mgr power_data
;
1150 struct iwl_tt_mgmt thermal_throttle
;
1152 struct iwl_notif_statistics statistics
;
1153 #ifdef CONFIG_IWLWIFI_DEBUG
1154 struct iwl_notif_statistics accum_statistics
;
1155 struct iwl_notif_statistics delta_statistics
;
1156 struct iwl_notif_statistics max_delta
;
1159 /* context information */
1162 u8 mac_addr
[ETH_ALEN
];
1164 /*station table variables */
1165 spinlock_t sta_lock
;
1167 struct iwl_station_entry stations
[IWL_STATION_COUNT
];
1168 struct iwl_wep_key wep_keys
[WEP_KEYS_MAX
]; /* protected by mutex */
1170 unsigned long ucode_key_table
;
1172 /* queue refcounts */
1173 #define IWL_MAX_HW_QUEUES 32
1174 unsigned long queue_stopped
[BITS_TO_LONGS(IWL_MAX_HW_QUEUES
)];
1176 atomic_t queue_stop_count
[4];
1178 /* Indication if ieee80211_ops->open has been called */
1181 u8 mac80211_registered
;
1183 /* eeprom -- this is in the card's little endian byte order */
1185 int nvm_device_type
;
1186 struct iwl_eeprom_calib_info
*calib_info
;
1188 enum nl80211_iftype iw_mode
;
1190 struct sk_buff
*ibss_beacon
;
1192 /* Last Rx'd beacon timestamp */
1195 struct ieee80211_vif
*vif
;
1198 #if defined(CONFIG_IWL3945) || defined(CONFIG_IWL3945_MODULE)
1201 dma_addr_t shared_phys
;
1203 struct delayed_work thermal_periodic
;
1204 struct delayed_work rfkill_poll
;
1206 struct iwl3945_notif_statistics statistics
;
1209 int last_rx_rssi
; /* From Rx packet statistics */
1211 /* Rx'd packet timing information */
1212 u32 last_beacon_time
;
1216 * each calibration channel group in the
1217 * EEPROM has a derived clip setting for
1220 const struct iwl3945_clip_group clip_groups
[5];
1224 #if defined(CONFIG_IWLAGN) || defined(CONFIG_IWLAGN_MODULE)
1229 dma_addr_t ict_tbl_dma
;
1230 dma_addr_t aligned_ict_tbl_dma
;
1235 * reporting the number of tids has AGG on. 0 means
1240 struct iwl_rx_phy_res last_phy_res
;
1241 bool last_phy_res_valid
;
1246 struct iwl_hw_params hw_params
;
1249 /* Current association information needed to configure the
1252 u16 assoc_capability
;
1254 struct iwl_qos_info qos_data
;
1256 struct workqueue_struct
*workqueue
;
1258 struct work_struct restart
;
1259 struct work_struct scan_completed
;
1260 struct work_struct rx_replenish
;
1261 struct work_struct abort_scan
;
1262 struct work_struct request_scan
;
1263 struct work_struct beacon_update
;
1264 struct work_struct tt_work
;
1265 struct work_struct ct_enter
;
1266 struct work_struct ct_exit
;
1267 struct work_struct start_internal_scan
;
1269 struct tasklet_struct irq_tasklet
;
1271 struct delayed_work init_alive_start
;
1272 struct delayed_work alive_start
;
1273 struct delayed_work scan_check
;
1276 s8 tx_power_user_lmt
;
1277 s8 tx_power_device_lmt
;
1278 s8 tx_power_lmt_in_half_dbm
; /* max tx power in half-dBm format */
1281 #ifdef CONFIG_IWLWIFI_DEBUG
1282 /* debugging info */
1283 u32 debug_level
; /* per device debugging will override global
1284 iwl_debug_level if set */
1286 atomic_t restrict_refcnt
;
1288 #ifdef CONFIG_IWLWIFI_DEBUGFS
1294 struct dentry
*debugfs_dir
;
1295 u32 dbgfs_sram_offset
, dbgfs_sram_len
;
1296 #endif /* CONFIG_IWLWIFI_DEBUGFS */
1297 #endif /* CONFIG_IWLWIFI_DEBUG */
1299 struct work_struct txpower_work
;
1300 u32 disable_sens_cal
;
1301 u32 disable_chain_noise_cal
;
1302 u32 disable_tx_power_cal
;
1303 struct work_struct run_time_calib_work
;
1304 struct timer_list statistics_periodic
;
1305 struct timer_list ucode_trace
;
1306 struct timer_list monitor_recover
;
1309 struct iwl_event_log event_log
;
1312 static inline void iwl_txq_ctx_activate(struct iwl_priv
*priv
, int txq_id
)
1314 set_bit(txq_id
, &priv
->txq_ctx_active_msk
);
1317 static inline void iwl_txq_ctx_deactivate(struct iwl_priv
*priv
, int txq_id
)
1319 clear_bit(txq_id
, &priv
->txq_ctx_active_msk
);
1322 #ifdef CONFIG_IWLWIFI_DEBUG
1323 const char *iwl_get_tx_fail_reason(u32 status
);
1325 * iwl_get_debug_level: Return active debug level for device
1327 * Using sysfs it is possible to set per device debug level. This debug
1328 * level will be used if set, otherwise the global debug level which can be
1329 * set via module parameter is used.
1331 static inline u32
iwl_get_debug_level(struct iwl_priv
*priv
)
1333 if (priv
->debug_level
)
1334 return priv
->debug_level
;
1336 return iwl_debug_level
;
1339 static inline const char *iwl_get_tx_fail_reason(u32 status
) { return ""; }
1341 static inline u32
iwl_get_debug_level(struct iwl_priv
*priv
)
1343 return iwl_debug_level
;
1348 static inline struct ieee80211_hdr
*iwl_tx_queue_get_hdr(struct iwl_priv
*priv
,
1349 int txq_id
, int idx
)
1351 if (priv
->txq
[txq_id
].txb
[idx
].skb
[0])
1352 return (struct ieee80211_hdr
*)priv
->txq
[txq_id
].
1353 txb
[idx
].skb
[0]->data
;
1358 static inline int iwl_is_associated(struct iwl_priv
*priv
)
1360 return (priv
->active_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
) ? 1 : 0;
1363 static inline int is_channel_valid(const struct iwl_channel_info
*ch_info
)
1365 if (ch_info
== NULL
)
1367 return (ch_info
->flags
& EEPROM_CHANNEL_VALID
) ? 1 : 0;
1370 static inline int is_channel_radar(const struct iwl_channel_info
*ch_info
)
1372 return (ch_info
->flags
& EEPROM_CHANNEL_RADAR
) ? 1 : 0;
1375 static inline u8
is_channel_a_band(const struct iwl_channel_info
*ch_info
)
1377 return ch_info
->band
== IEEE80211_BAND_5GHZ
;
1380 static inline u8
is_channel_bg_band(const struct iwl_channel_info
*ch_info
)
1382 return ch_info
->band
== IEEE80211_BAND_2GHZ
;
1385 static inline int is_channel_passive(const struct iwl_channel_info
*ch
)
1387 return (!(ch
->flags
& EEPROM_CHANNEL_ACTIVE
)) ? 1 : 0;
1390 static inline int is_channel_ibss(const struct iwl_channel_info
*ch
)
1392 return ((ch
->flags
& EEPROM_CHANNEL_IBSS
)) ? 1 : 0;
1395 static inline void __iwl_free_pages(struct iwl_priv
*priv
, struct page
*page
)
1397 __free_pages(page
, priv
->hw_params
.rx_page_order
);
1398 priv
->alloc_rxb_page
--;
1401 static inline void iwl_free_pages(struct iwl_priv
*priv
, unsigned long page
)
1403 free_pages(page
, priv
->hw_params
.rx_page_order
);
1404 priv
->alloc_rxb_page
--;
1406 #endif /* __iwl_dev_h__ */