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 iwl6000g2a_2agn_cfg
;
61 extern struct iwl_cfg iwl6000i_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
;
500 struct iwl_station_priv_common
{
505 * iwl_station_priv: Driver's private station information
507 * When mac80211 creates a station it reserves some space (hw->sta_data_size)
508 * in the structure for use by driver. This structure is places in that
511 * The common struct MUST be first because it is shared between
514 struct iwl_station_priv
{
515 struct iwl_station_priv_common common
;
516 struct iwl_lq_sta lq_sta
;
517 atomic_t pending_frames
;
523 * struct iwl_vif_priv - driver's private per-interface information
525 * When mac80211 allocates a virtual interface, it can allocate
526 * space for us to put data into.
528 struct iwl_vif_priv
{
529 u8 ibss_bssid_sta_id
;
532 /* one for each uCode image (inst/data, boot/init/runtime) */
534 void *v_addr
; /* access by driver */
535 dma_addr_t p_addr
; /* access by card's busmaster DMA */
539 /* v1/v2 uCode file layout */
540 struct iwl_ucode_header
{
541 __le32 ver
; /* major/minor/API/serial */
544 __le32 inst_size
; /* bytes of runtime code */
545 __le32 data_size
; /* bytes of runtime data */
546 __le32 init_size
; /* bytes of init code */
547 __le32 init_data_size
; /* bytes of init data */
548 __le32 boot_size
; /* bytes of bootstrap code */
549 u8 data
[0]; /* in same order as sizes */
552 __le32 build
; /* build number */
553 __le32 inst_size
; /* bytes of runtime code */
554 __le32 data_size
; /* bytes of runtime data */
555 __le32 init_size
; /* bytes of init code */
556 __le32 init_data_size
; /* bytes of init data */
557 __le32 boot_size
; /* bytes of bootstrap code */
558 u8 data
[0]; /* in same order as sizes */
564 * new TLV uCode file layout
566 * The new TLV file format contains TLVs, that each specify
567 * some piece of data. To facilitate "groups", for example
568 * different instruction image with different capabilities,
569 * bundled with the same init image, an alternative mechanism
571 * When the alternative field is 0, that means that the item
572 * is always valid. When it is non-zero, then it is only
573 * valid in conjunction with items of the same alternative,
574 * in which case the driver (user) selects one alternative
578 enum iwl_ucode_tlv_type
{
579 IWL_UCODE_TLV_INVALID
= 0, /* unused */
580 IWL_UCODE_TLV_INST
= 1,
581 IWL_UCODE_TLV_DATA
= 2,
582 IWL_UCODE_TLV_INIT
= 3,
583 IWL_UCODE_TLV_INIT_DATA
= 4,
584 IWL_UCODE_TLV_BOOT
= 5,
585 IWL_UCODE_TLV_PROBE_MAX_LEN
= 6, /* a u32 value */
588 struct iwl_ucode_tlv
{
589 __le16 type
; /* see above */
590 __le16 alternative
; /* see comment */
591 __le32 length
; /* not including type/length fields */
593 } __attribute__ ((packed
));
595 #define IWL_TLV_UCODE_MAGIC 0x0a4c5749
597 struct iwl_tlv_ucode_header
{
599 * The TLV style ucode header is distinguished from
600 * the v1/v2 style header by first four bytes being
601 * zero, as such is an invalid combination of
602 * major/minor/API/serial versions.
606 u8 human_readable
[64];
607 __le32 ver
; /* major/minor/API/serial */
609 __le64 alternatives
; /* bitmask of valid alternatives */
611 * The data contained herein has a TLV layout,
612 * see above for the TLV header and types.
613 * Note that each TLV is padded to a length
614 * that is a multiple of 4 for alignment.
619 struct iwl4965_ibss_seq
{
623 unsigned long packet_time
;
624 struct list_head list
;
627 struct iwl_sensitivity_ranges
{
634 u16 auto_corr_min_ofdm
;
635 u16 auto_corr_min_ofdm_mrc
;
636 u16 auto_corr_min_ofdm_x1
;
637 u16 auto_corr_min_ofdm_mrc_x1
;
639 u16 auto_corr_max_ofdm
;
640 u16 auto_corr_max_ofdm_mrc
;
641 u16 auto_corr_max_ofdm_x1
;
642 u16 auto_corr_max_ofdm_mrc_x1
;
644 u16 auto_corr_max_cck
;
645 u16 auto_corr_max_cck_mrc
;
646 u16 auto_corr_min_cck
;
647 u16 auto_corr_min_cck_mrc
;
649 u16 barker_corr_th_min
;
650 u16 barker_corr_th_min_mrc
;
655 #define KELVIN_TO_CELSIUS(x) ((x)-273)
656 #define CELSIUS_TO_KELVIN(x) ((x)+273)
660 * struct iwl_hw_params
661 * @max_txq_num: Max # Tx queues supported
662 * @dma_chnl_num: Number of Tx DMA/FIFO channels
663 * @scd_bc_tbls_size: size of scheduler byte count tables
664 * @tfd_size: TFD size
665 * @tx/rx_chains_num: Number of TX/RX chains
666 * @valid_tx/rx_ant: usable antennas
667 * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
668 * @max_rxq_log: Log-base-2 of max_rxq_size
669 * @rx_page_order: Rx buffer page order
670 * @rx_wrt_ptr_reg: FH{39}_RSCSR_CHNL0_WPTR
673 * @ht40_channel: is 40MHz width possible in band 2.4
674 * BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ)
675 * @sw_crypto: 0 for hw, 1 for sw
676 * @max_xxx_size: for ucode uses
677 * @ct_kill_threshold: temperature threshold
678 * @calib_init_cfg: setup initial calibrations for the hw
679 * @struct iwl_sensitivity_ranges: range of sensitivity values
681 struct iwl_hw_params
{
684 u16 scd_bc_tbls_size
;
697 u8 max_beacon_itrvl
; /* in 1024 ms */
701 u32 ct_kill_threshold
; /* value in hw-dependent units */
702 u32 ct_kill_exit_threshold
; /* value in hw-dependent units */
703 /* for 1000, 6000 series and up */
705 const struct iwl_sensitivity_ranges
*sens
;
709 /******************************************************************************
711 * Functions implemented in core module which are forward declared here
712 * for use by iwl-[4-5].c
714 * NOTE: The implementation of these functions are not hardware specific
715 * which is why they are in the core module files.
717 * Naming convention --
718 * iwl_ <-- Is part of iwlwifi
719 * iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
720 * iwl4965_bg_ <-- Called from work queue context
721 * iwl4965_mac_ <-- mac80211 callback
723 ****************************************************************************/
724 extern void iwl_update_chain_flags(struct iwl_priv
*priv
);
725 extern int iwl_set_pwr_src(struct iwl_priv
*priv
, enum iwl_pwr_src src
);
726 extern const u8 iwl_bcast_addr
[ETH_ALEN
];
727 extern int iwl_rxq_stop(struct iwl_priv
*priv
);
728 extern void iwl_txq_ctx_stop(struct iwl_priv
*priv
);
729 extern int iwl_queue_space(const struct iwl_queue
*q
);
730 static inline int iwl_queue_used(const struct iwl_queue
*q
, int i
)
732 return q
->write_ptr
>= q
->read_ptr
?
733 (i
>= q
->read_ptr
&& i
< q
->write_ptr
) :
734 !(i
< q
->read_ptr
&& i
>= q
->write_ptr
);
738 static inline u8
get_cmd_index(struct iwl_queue
*q
, u32 index
, int is_huge
)
741 * This is for init calibration result and scan command which
742 * required buffer > TFD_MAX_PAYLOAD_SIZE,
743 * the big buffer at end of command array
746 return q
->n_window
; /* must be power of 2 */
748 /* Otherwise, use normal size buffers */
749 return index
& (q
->n_window
- 1);
759 #define IWL_OPERATION_MODE_AUTO 0
760 #define IWL_OPERATION_MODE_HT_ONLY 1
761 #define IWL_OPERATION_MODE_MIXED 2
762 #define IWL_OPERATION_MODE_20MHZ 3
764 #define IWL_TX_CRC_SIZE 4
765 #define IWL_TX_DELIMITER_SIZE 4
767 #define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
769 /* Sensitivity and chain noise calibration */
770 #define INITIALIZATION_VALUE 0xFFFF
771 #define IWL4965_CAL_NUM_BEACONS 20
772 #define IWL_CAL_NUM_BEACONS 16
773 #define MAXIMUM_ALLOWED_PATHLOSS 15
775 #define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
777 #define MAX_FA_OFDM 50
778 #define MIN_FA_OFDM 5
779 #define MAX_FA_CCK 50
782 #define AUTO_CORR_STEP_OFDM 1
784 #define AUTO_CORR_STEP_CCK 3
785 #define AUTO_CORR_MAX_TH_CCK 160
788 #define NRG_STEP_CCK 2
790 #define MAX_NUMBER_CCK_NO_FA 100
792 #define AUTO_CORR_CCK_MIN_VAL_DEF (125)
797 #define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
798 #define ALL_BAND_FILTER 0xFF00
799 #define IN_BAND_FILTER 0xFF
800 #define MIN_AVERAGE_NOISE_MAX_VALUE 0xFFFFFFFF
802 #define NRG_NUM_PREV_STAT_L 20
803 #define NUM_RX_CHAINS 3
805 enum iwl4965_false_alarm_state
{
808 IWL_FA_GOOD_RANGE
= 2,
811 enum iwl4965_chain_noise_state
{
812 IWL_CHAIN_NOISE_ALIVE
= 0, /* must be 0 */
813 IWL_CHAIN_NOISE_ACCUMULATE
,
814 IWL_CHAIN_NOISE_CALIBRATED
,
815 IWL_CHAIN_NOISE_DONE
,
818 enum iwl4965_calib_enabled_state
{
819 IWL_CALIB_DISABLED
= 0, /* must be 0 */
820 IWL_CALIB_ENABLED
= 1,
826 * defines the order in which results of initial calibrations
827 * should be sent to the runtime uCode
834 IWL_CALIB_TX_IQ_PERD
,
839 /* Opaque calibration results */
840 struct iwl_calib_result
{
851 /* Sensitivity calib data */
852 struct iwl_sensitivity_data
{
854 u32 auto_corr_ofdm_mrc
;
855 u32 auto_corr_ofdm_x1
;
856 u32 auto_corr_ofdm_mrc_x1
;
858 u32 auto_corr_cck_mrc
;
860 u32 last_bad_plcp_cnt_ofdm
;
861 u32 last_fa_cnt_ofdm
;
862 u32 last_bad_plcp_cnt_cck
;
868 u8 nrg_silence_rssi
[NRG_NUM_PREV_STAT_L
];
873 s32 nrg_auto_corr_silence_diff
;
874 u32 num_in_cck_no_fa
;
877 u16 barker_corr_th_min
;
878 u16 barker_corr_th_min_mrc
;
882 /* Chain noise (differential Rx gain) calib data */
883 struct iwl_chain_noise_data
{
892 u8 disconn_array
[NUM_RX_CHAINS
];
893 u8 delta_gain_code
[NUM_RX_CHAINS
];
898 #define EEPROM_SEM_TIMEOUT 10 /* milliseconds */
899 #define EEPROM_SEM_RETRY_LIMIT 1000 /* number of attempts (not time) */
901 #define IWL_TRAFFIC_ENTRIES (256)
902 #define IWL_TRAFFIC_ENTRY_SIZE (64)
905 MEASUREMENT_READY
= (1 << 0),
906 MEASUREMENT_ACTIVE
= (1 << 1),
910 NVM_DEVICE_TYPE_EEPROM
= 0,
915 * Two types of OTP memory access modes
916 * IWL_OTP_ACCESS_ABSOLUTE - absolute address mode,
917 * based on physical memory addressing
918 * IWL_OTP_ACCESS_RELATIVE - relative address mode,
919 * based on logical memory addressing
921 enum iwl_access_mode
{
922 IWL_OTP_ACCESS_ABSOLUTE
,
923 IWL_OTP_ACCESS_RELATIVE
,
927 * enum iwl_pa_type - Power Amplifier type
928 * @IWL_PA_SYSTEM: based on uCode configuration
929 * @IWL_PA_INTERNAL: use Internal only
936 /* interrupt statistics */
937 struct isr_statistics
{
947 u32 rx_handlers
[REPLY_MAX
];
952 #ifdef CONFIG_IWLWIFI_DEBUGFS
953 /* management statistics */
954 enum iwl_mgmt_stats
{
955 MANAGEMENT_ASSOC_REQ
= 0,
956 MANAGEMENT_ASSOC_RESP
,
957 MANAGEMENT_REASSOC_REQ
,
958 MANAGEMENT_REASSOC_RESP
,
959 MANAGEMENT_PROBE_REQ
,
960 MANAGEMENT_PROBE_RESP
,
969 /* control statistics */
970 enum iwl_ctrl_stats
{
971 CONTROL_BACK_REQ
= 0,
982 struct traffic_stats
{
983 u32 mgmt
[MANAGEMENT_MAX
];
984 u32 ctrl
[CONTROL_MAX
];
989 struct traffic_stats
{
995 * iwl_switch_rxon: "channel switch" structure
997 * @ switch_in_progress: channel switch in progress
998 * @ channel: new channel
1000 struct iwl_switch_rxon
{
1001 bool switch_in_progress
;
1006 * schedule the timer to wake up every UCODE_TRACE_PERIOD milliseconds
1007 * to perform continuous uCode event logging operation if enabled
1009 #define UCODE_TRACE_PERIOD (100)
1012 * iwl_event_log: current uCode event log position
1014 * @ucode_trace: enable/disable ucode continuous trace timer
1015 * @num_wraps: how many times the event buffer wraps
1016 * @next_entry: the entry just before the next one that uCode would fill
1017 * @non_wraps_count: counter for no wrap detected when dump ucode events
1018 * @wraps_once_count: counter for wrap once detected when dump ucode events
1019 * @wraps_more_count: counter for wrap more than once detected
1020 * when dump ucode events
1022 struct iwl_event_log
{
1026 int non_wraps_count
;
1027 int wraps_once_count
;
1028 int wraps_more_count
;
1032 * host interrupt timeout value
1033 * used with setting interrupt coalescing timer
1034 * the CSR_INT_COALESCING is an 8 bit register in 32-usec unit
1036 * default interrupt coalescing timer is 64 x 32 = 2048 usecs
1037 * default interrupt coalescing calibration timer is 16 x 32 = 512 usecs
1039 #define IWL_HOST_INT_TIMEOUT_MAX (0xFF)
1040 #define IWL_HOST_INT_TIMEOUT_DEF (0x40)
1041 #define IWL_HOST_INT_TIMEOUT_MIN (0x0)
1042 #define IWL_HOST_INT_CALIB_TIMEOUT_MAX (0xFF)
1043 #define IWL_HOST_INT_CALIB_TIMEOUT_DEF (0x10)
1044 #define IWL_HOST_INT_CALIB_TIMEOUT_MIN (0x0)
1047 * This is the threshold value of plcp error rate per 100mSecs. It is
1048 * used to set and check for the validity of plcp_delta.
1050 #define IWL_MAX_PLCP_ERR_THRESHOLD_MIN (0)
1051 #define IWL_MAX_PLCP_ERR_THRESHOLD_DEF (50)
1052 #define IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF (100)
1053 #define IWL_MAX_PLCP_ERR_EXT_LONG_THRESHOLD_DEF (200)
1054 #define IWL_MAX_PLCP_ERR_THRESHOLD_MAX (255)
1056 #define IWL_DELAY_NEXT_FORCE_RF_RESET (HZ*3)
1057 #define IWL_DELAY_NEXT_FORCE_FW_RELOAD (HZ*5)
1059 /* timer constants use to monitor and recover stuck tx queues in mSecs */
1060 #define IWL_MONITORING_PERIOD (1000)
1061 #define IWL_ONE_HUNDRED_MSECS (100)
1062 #define IWL_SIXTY_SECS (60000)
1067 IWL_MAX_FORCE_RESET
,
1070 struct iwl_force_reset
{
1071 int reset_request_count
;
1072 int reset_success_count
;
1073 int reset_reject_count
;
1074 unsigned long reset_duration
;
1075 unsigned long last_force_reset_jiffies
;
1080 /* ieee device used by generic ieee processing code */
1081 struct ieee80211_hw
*hw
;
1082 struct ieee80211_channel
*ieee_channels
;
1083 struct ieee80211_rate
*ieee_rates
;
1084 struct iwl_cfg
*cfg
;
1086 /* temporary frame storage list */
1087 struct list_head free_frames
;
1090 enum ieee80211_band band
;
1093 void (*rx_handlers
[REPLY_MAX
])(struct iwl_priv
*priv
,
1094 struct iwl_rx_mem_buffer
*rxb
);
1096 struct ieee80211_supported_band bands
[IEEE80211_NUM_BANDS
];
1098 /* spectrum measurement report caching */
1099 struct iwl_spectrum_notification measure_report
;
1100 u8 measurement_status
;
1102 /* ucode beacon time */
1103 u32 ucode_beacon_time
;
1104 int missed_beacon_threshold
;
1106 /* storing the jiffies when the plcp error rate is received */
1107 unsigned long plcp_jiffies
;
1110 struct iwl_force_reset force_reset
[IWL_MAX_FORCE_RESET
];
1112 /* we allocate array of iwl4965_channel_info for NIC's valid channels.
1113 * Access via channel # using indirect index array */
1114 struct iwl_channel_info
*channel_info
; /* channel info array */
1115 u8 channel_count
; /* # of channels */
1117 /* thermal calibration */
1118 s32 temperature
; /* degrees Kelvin */
1119 s32 last_temperature
;
1121 /* init calibration results */
1122 struct iwl_calib_result calib_results
[IWL_CALIB_MAX
];
1124 /* Scan related variables */
1125 unsigned long scan_start
;
1126 unsigned long scan_start_tsf
;
1128 enum ieee80211_band scan_band
;
1129 struct cfg80211_scan_request
*scan_request
;
1130 bool is_internal_short_scan
;
1131 u8 scan_tx_ant
[IEEE80211_NUM_BANDS
];
1135 spinlock_t lock
; /* protect general shared data */
1136 spinlock_t hcmd_lock
; /* protect hcmd */
1137 spinlock_t reg_lock
; /* protect hw register access */
1139 struct mutex sync_cmd_mutex
; /* enable serialization of sync commands */
1141 /* basic pci-network driver stuff */
1142 struct pci_dev
*pci_dev
;
1144 /* pci hardware address support */
1145 void __iomem
*hw_base
;
1150 /* uCode images, save to reload in case of failure */
1151 int fw_index
; /* firmware we're trying to load */
1152 u32 ucode_ver
; /* version of ucode, copy of
1154 struct fw_desc ucode_code
; /* runtime inst */
1155 struct fw_desc ucode_data
; /* runtime data original */
1156 struct fw_desc ucode_data_backup
; /* runtime data save/restore */
1157 struct fw_desc ucode_init
; /* initialization inst */
1158 struct fw_desc ucode_init_data
; /* initialization data */
1159 struct fw_desc ucode_boot
; /* bootstrap inst */
1160 enum ucode_type ucode_type
;
1161 u8 ucode_write_complete
; /* the image write is complete */
1162 char firmware_name
[25];
1165 struct iwl_rxon_time_cmd rxon_timing
;
1167 /* We declare this const so it can only be
1168 * changed via explicit cast within the
1169 * routines that actually update the physical
1171 const struct iwl_rxon_cmd active_rxon
;
1172 struct iwl_rxon_cmd staging_rxon
;
1174 struct iwl_switch_rxon switch_rxon
;
1176 /* 1st responses from initialize and runtime uCode images.
1177 * 4965's initialize alive response contains some calibration data. */
1178 struct iwl_init_alive_resp card_alive_init
;
1179 struct iwl_alive_resp card_alive
;
1181 unsigned long last_blink_time
;
1189 struct iwl_sensitivity_data sensitivity_data
;
1190 struct iwl_chain_noise_data chain_noise_data
;
1191 __le16 sensitivity_tbl
[HD_TABLE_SIZE
];
1193 struct iwl_ht_config current_ht_config
;
1195 /* Rate scaling data */
1198 wait_queue_head_t wait_command_queue
;
1200 int activity_timer_active
;
1202 /* Rx and Tx DMA processing queues */
1203 struct iwl_rx_queue rxq
;
1204 struct iwl_tx_queue
*txq
;
1205 unsigned long txq_ctx_active_msk
;
1206 struct iwl_dma_ptr kw
; /* keep warm address */
1207 struct iwl_dma_ptr scd_bc_tbls
;
1209 u32 scd_base_addr
; /* scheduler sram base address */
1211 unsigned long status
;
1213 /* counts mgmt, ctl, and data packets */
1214 struct traffic_stats tx_stats
;
1215 struct traffic_stats rx_stats
;
1217 /* counts interrupts */
1218 struct isr_statistics isr_stats
;
1220 struct iwl_power_mgr power_data
;
1221 struct iwl_tt_mgmt thermal_throttle
;
1223 struct iwl_notif_statistics statistics
;
1224 #ifdef CONFIG_IWLWIFI_DEBUG
1225 struct iwl_notif_statistics accum_statistics
;
1226 struct iwl_notif_statistics delta_statistics
;
1227 struct iwl_notif_statistics max_delta
;
1230 /* context information */
1231 u8 bssid
[ETH_ALEN
]; /* used only on 3945 but filled by core */
1232 u8 mac_addr
[ETH_ALEN
];
1234 /*station table variables */
1235 spinlock_t sta_lock
;
1237 struct iwl_station_entry stations
[IWL_STATION_COUNT
];
1238 struct iwl_wep_key wep_keys
[WEP_KEYS_MAX
]; /* protected by mutex */
1240 unsigned long ucode_key_table
;
1242 /* queue refcounts */
1243 #define IWL_MAX_HW_QUEUES 32
1244 unsigned long queue_stopped
[BITS_TO_LONGS(IWL_MAX_HW_QUEUES
)];
1246 atomic_t queue_stop_count
[4];
1248 /* Indication if ieee80211_ops->open has been called */
1251 u8 mac80211_registered
;
1253 /* eeprom -- this is in the card's little endian byte order */
1255 int nvm_device_type
;
1256 struct iwl_eeprom_calib_info
*calib_info
;
1258 enum nl80211_iftype iw_mode
;
1260 struct sk_buff
*ibss_beacon
;
1262 /* Last Rx'd beacon timestamp */
1264 struct ieee80211_vif
*vif
;
1267 #if defined(CONFIG_IWL3945) || defined(CONFIG_IWL3945_MODULE)
1270 dma_addr_t shared_phys
;
1272 struct delayed_work thermal_periodic
;
1273 struct delayed_work rfkill_poll
;
1275 struct iwl3945_notif_statistics statistics
;
1276 #ifdef CONFIG_IWLWIFI_DEBUG
1277 struct iwl3945_notif_statistics accum_statistics
;
1278 struct iwl3945_notif_statistics delta_statistics
;
1279 struct iwl3945_notif_statistics max_delta
;
1283 int last_rx_rssi
; /* From Rx packet statistics */
1285 /* Rx'd packet timing information */
1286 u32 last_beacon_time
;
1290 * each calibration channel group in the
1291 * EEPROM has a derived clip setting for
1294 const struct iwl3945_clip_group clip_groups
[5];
1298 #if defined(CONFIG_IWLAGN) || defined(CONFIG_IWLAGN_MODULE)
1303 dma_addr_t ict_tbl_dma
;
1304 dma_addr_t aligned_ict_tbl_dma
;
1309 * reporting the number of tids has AGG on. 0 means
1314 struct iwl_rx_phy_res last_phy_res
;
1315 bool last_phy_res_valid
;
1317 struct completion firmware_loading_complete
;
1322 struct iwl_hw_params hw_params
;
1326 struct iwl_qos_info qos_data
;
1328 struct workqueue_struct
*workqueue
;
1330 struct work_struct restart
;
1331 struct work_struct scan_completed
;
1332 struct work_struct rx_replenish
;
1333 struct work_struct abort_scan
;
1334 struct work_struct beacon_update
;
1335 struct work_struct tt_work
;
1336 struct work_struct ct_enter
;
1337 struct work_struct ct_exit
;
1338 struct work_struct start_internal_scan
;
1340 struct tasklet_struct irq_tasklet
;
1342 struct delayed_work init_alive_start
;
1343 struct delayed_work alive_start
;
1344 struct delayed_work scan_check
;
1347 s8 tx_power_user_lmt
;
1348 s8 tx_power_device_lmt
;
1349 s8 tx_power_lmt_in_half_dbm
; /* max tx power in half-dBm format */
1352 #ifdef CONFIG_IWLWIFI_DEBUG
1353 /* debugging info */
1354 u32 debug_level
; /* per device debugging will override global
1355 iwl_debug_level if set */
1357 atomic_t restrict_refcnt
;
1359 #ifdef CONFIG_IWLWIFI_DEBUGFS
1365 struct dentry
*debugfs_dir
;
1366 u32 dbgfs_sram_offset
, dbgfs_sram_len
;
1367 #endif /* CONFIG_IWLWIFI_DEBUGFS */
1368 #endif /* CONFIG_IWLWIFI_DEBUG */
1370 struct work_struct txpower_work
;
1371 u32 disable_sens_cal
;
1372 u32 disable_chain_noise_cal
;
1373 u32 disable_tx_power_cal
;
1374 struct work_struct run_time_calib_work
;
1375 struct timer_list statistics_periodic
;
1376 struct timer_list ucode_trace
;
1377 struct timer_list monitor_recover
;
1380 struct iwl_event_log event_log
;
1383 static inline void iwl_txq_ctx_activate(struct iwl_priv
*priv
, int txq_id
)
1385 set_bit(txq_id
, &priv
->txq_ctx_active_msk
);
1388 static inline void iwl_txq_ctx_deactivate(struct iwl_priv
*priv
, int txq_id
)
1390 clear_bit(txq_id
, &priv
->txq_ctx_active_msk
);
1393 #ifdef CONFIG_IWLWIFI_DEBUG
1394 const char *iwl_get_tx_fail_reason(u32 status
);
1396 * iwl_get_debug_level: Return active debug level for device
1398 * Using sysfs it is possible to set per device debug level. This debug
1399 * level will be used if set, otherwise the global debug level which can be
1400 * set via module parameter is used.
1402 static inline u32
iwl_get_debug_level(struct iwl_priv
*priv
)
1404 if (priv
->debug_level
)
1405 return priv
->debug_level
;
1407 return iwl_debug_level
;
1410 static inline const char *iwl_get_tx_fail_reason(u32 status
) { return ""; }
1412 static inline u32
iwl_get_debug_level(struct iwl_priv
*priv
)
1414 return iwl_debug_level
;
1419 static inline struct ieee80211_hdr
*iwl_tx_queue_get_hdr(struct iwl_priv
*priv
,
1420 int txq_id
, int idx
)
1422 if (priv
->txq
[txq_id
].txb
[idx
].skb
[0])
1423 return (struct ieee80211_hdr
*)priv
->txq
[txq_id
].
1424 txb
[idx
].skb
[0]->data
;
1429 static inline int iwl_is_associated(struct iwl_priv
*priv
)
1431 return (priv
->active_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
) ? 1 : 0;
1434 static inline int is_channel_valid(const struct iwl_channel_info
*ch_info
)
1436 if (ch_info
== NULL
)
1438 return (ch_info
->flags
& EEPROM_CHANNEL_VALID
) ? 1 : 0;
1441 static inline int is_channel_radar(const struct iwl_channel_info
*ch_info
)
1443 return (ch_info
->flags
& EEPROM_CHANNEL_RADAR
) ? 1 : 0;
1446 static inline u8
is_channel_a_band(const struct iwl_channel_info
*ch_info
)
1448 return ch_info
->band
== IEEE80211_BAND_5GHZ
;
1451 static inline u8
is_channel_bg_band(const struct iwl_channel_info
*ch_info
)
1453 return ch_info
->band
== IEEE80211_BAND_2GHZ
;
1456 static inline int is_channel_passive(const struct iwl_channel_info
*ch
)
1458 return (!(ch
->flags
& EEPROM_CHANNEL_ACTIVE
)) ? 1 : 0;
1461 static inline int is_channel_ibss(const struct iwl_channel_info
*ch
)
1463 return ((ch
->flags
& EEPROM_CHANNEL_IBSS
)) ? 1 : 0;
1466 static inline void __iwl_free_pages(struct iwl_priv
*priv
, struct page
*page
)
1468 __free_pages(page
, priv
->hw_params
.rx_page_order
);
1469 priv
->alloc_rxb_page
--;
1472 static inline void iwl_free_pages(struct iwl_priv
*priv
, unsigned long page
)
1474 free_pages(page
, priv
->hw_params
.rx_page_order
);
1475 priv
->alloc_rxb_page
--;
1477 #endif /* __iwl_dev_h__ */