1 /******************************************************************************
3 * Copyright(c) 2003 - 2011 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.
34 #include <linux/interrupt.h>
35 #include <linux/pci.h> /* for struct pci_device_id */
36 #include <linux/kernel.h>
37 #include <linux/wait.h>
38 #include <linux/leds.h>
39 #include <net/ieee80211_radiotap.h>
41 #include "iwl-eeprom.h"
44 #include "iwl-debug.h"
45 #include "iwl-agn-hw.h"
47 #include "iwl-power.h"
48 #include "iwl-agn-rs.h"
49 #include "iwl-agn-tt.h"
51 #include "iwl-trans.h"
52 #include "iwl-shared.h"
56 /* CT-KILL constants */
57 #define CT_KILL_THRESHOLD_LEGACY 110 /* in Celsius */
58 #define CT_KILL_THRESHOLD 114 /* in Celsius */
59 #define CT_KILL_EXIT_THRESHOLD 95 /* in Celsius */
61 /* Default noise level to report when noise measurement is not available.
62 * This may be because we're:
63 * 1) Not associated (4965, no beacon statistics being sent to driver)
64 * 2) Scanning (noise measurement does not apply to associated channel)
65 * 3) Receiving CCK (3945 delivers noise info only for OFDM frames)
66 * Use default noise value of -127 ... this is below the range of measurable
67 * Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
68 * Also, -127 works better than 0 when averaging frames with/without
69 * noise info (e.g. averaging might be done in app); measured dBm values are
70 * always negative ... using a negative value as the default keeps all
71 * averages within an s8's (used in some apps) range of negative values. */
72 #define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
75 * RTS threshold here is total size [2347] minus 4 FCS bytes
77 * a value of 0 means RTS on all data/management packets
78 * a value > max MSDU size means no RTS
79 * else RTS for data/management frames where MPDU is larger
82 #define DEFAULT_RTS_THRESHOLD 2347U
83 #define MIN_RTS_THRESHOLD 0U
84 #define MAX_RTS_THRESHOLD 2347U
85 #define MAX_MSDU_SIZE 2304U
86 #define MAX_MPDU_SIZE 2346U
87 #define DEFAULT_BEACON_INTERVAL 200U
88 #define DEFAULT_SHORT_RETRY_LIMIT 7U
89 #define DEFAULT_LONG_RETRY_LIMIT 4U
92 struct iwl_device_cmd;
95 /* only for SYNC commands, iff the reply skb is wanted */
96 struct iwl_host_cmd *source;
98 * only for ASYNC commands
99 * (which is somewhat stupid -- look at iwl-sta.c for instance
100 * which duplicates a bunch of code because the callback isn't
101 * invoked for SYNC commands, if it were and its result passed
102 * through it would be simpler...)
104 void (*callback)(struct iwl_priv *priv,
105 struct iwl_device_cmd *cmd,
106 struct iwl_rx_packet *pkt);
110 DEFINE_DMA_UNMAP_ADDR(mapping);
111 DEFINE_DMA_UNMAP_LEN(len);
115 * Generic queue structure
117 * Contains common data for Rx and Tx queues.
119 * Note the difference between n_bd and n_window: the hardware
120 * always assumes 256 descriptors, so n_bd is always 256 (unless
121 * there might be HW changes in the future). For the normal TX
122 * queues, n_window, which is the size of the software queue data
123 * is also 256; however, for the command queue, n_window is only
124 * 32 since we don't need so many commands pending. Since the HW
125 * still uses 256 BDs for DMA though, n_bd stays 256. As a result,
126 * the software buffers (in the variables @meta, @txb in struct
127 * iwl_tx_queue) only have 32 entries, while the HW buffers (@tfds
128 * in the same struct) have 256.
129 * This means that we end up with the following:
130 * HW entries: | 0 | ... | N * 32 | ... | N * 32 + 31 | ... | 255 |
131 * SW entries: | 0 | ... | 31 |
132 * where N is a number between 0 and 7. This means that the SW
133 * data is a window overlayed over the HW queue.
136 int n_bd; /* number of BDs in this queue */
137 int write_ptr; /* 1-st empty entry (index) host_w*/
138 int read_ptr; /* last used entry (index) host_r*/
139 /* use for monitoring and recovering the stuck queue */
140 dma_addr_t dma_addr; /* physical addr for BD's */
141 int n_window; /* safe queue window */
143 int low_mark; /* low watermark, resume queue if free
144 * space more than this */
145 int high_mark; /* high watermark, stop queue if free
146 * space less than this */
150 * struct iwl_tx_queue - Tx Queue for DMA
151 * @q: generic Rx/Tx queue descriptor
152 * @bd: base of circular buffer of TFDs
153 * @cmd: array of command/TX buffer pointers
154 * @meta: array of meta data for each command/tx buffer
155 * @dma_addr_cmd: physical address of cmd/tx buffer array
156 * @txb: array of per-TFD driver data
157 * @time_stamp: time (in jiffies) of last read_ptr change
158 * @need_update: indicates need to update read/write index
159 * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
160 * @sta_id: valid if sched_retry is set
161 * @tid: valid if sched_retry is set
163 * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
164 * descriptors) and required locking structures.
166 #define TFD_TX_CMD_SLOTS 256
167 #define TFD_CMD_SLOTS 32
169 struct iwl_tx_queue {
171 struct iwl_tfd *tfds;
172 struct iwl_device_cmd **cmd;
173 struct iwl_cmd_meta *meta;
174 struct sk_buff **skbs;
175 unsigned long time_stamp;
185 #define IWL_NUM_SCAN_RATES (2)
188 * One for each channel, holds all channel setup data
189 * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
192 struct iwl_channel_info {
193 struct iwl_eeprom_channel eeprom; /* EEPROM regulatory limit */
194 struct iwl_eeprom_channel ht40_eeprom; /* EEPROM regulatory limit for
197 u8 channel; /* channel number */
198 u8 flags; /* flags copied from EEPROM */
199 s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
200 s8 curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) limit */
201 s8 min_power; /* always 0 */
202 s8 scan_power; /* (dBm) regul. eeprom, direct scans, any rate */
204 u8 group_index; /* 0-4, maps channel to group1/2/3/4/5 */
205 u8 band_index; /* 0-4, maps channel to band1/2/3/4/5 */
206 enum ieee80211_band band;
208 /* HT40 channel info */
209 s8 ht40_max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
210 u8 ht40_flags; /* flags copied from EEPROM */
211 u8 ht40_extension_channel; /* HT_IE_EXT_CHANNEL_* */
214 #define IWL_TX_FIFO_BK 0 /* shared */
215 #define IWL_TX_FIFO_BE 1
216 #define IWL_TX_FIFO_VI 2 /* shared */
217 #define IWL_TX_FIFO_VO 3
218 #define IWL_TX_FIFO_BK_IPAN IWL_TX_FIFO_BK
219 #define IWL_TX_FIFO_BE_IPAN 4
220 #define IWL_TX_FIFO_VI_IPAN IWL_TX_FIFO_VI
221 #define IWL_TX_FIFO_VO_IPAN 5
222 /* re-uses the VO FIFO, uCode will properly flush/schedule */
223 #define IWL_TX_FIFO_AUX 5
224 #define IWL_TX_FIFO_UNUSED -1
226 /* AUX (TX during scan dwell) queue */
227 #define IWL_AUX_QUEUE 10
230 * Minimum number of queues. MAX_NUM is defined in hw specific files.
231 * Set the minimum to accommodate
232 * - 4 standard TX queues
233 * - the command queue
235 * - the PAN multicast queue, and
236 * - the AUX (TX during scan dwell) queue.
238 #define IWL_MIN_NUM_QUEUES 11
241 * Command queue depends on iPAN support.
243 #define IWL_DEFAULT_CMD_QUEUE_NUM 4
244 #define IWL_IPAN_CMD_QUEUE_NUM 9
247 * This queue number is required for proper operation
248 * because the ucode will stop/start the scheduler as
251 #define IWL_IPAN_MCAST_QUEUE 8
253 #define IEEE80211_DATA_LEN 2304
254 #define IEEE80211_4ADDR_LEN 30
255 #define IEEE80211_HLEN (IEEE80211_4ADDR_LEN)
256 #define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
259 #define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
260 #define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
261 #define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
266 CMD_WANT_SKB = BIT(1),
267 CMD_ON_DEMAND = BIT(2),
270 #define DEF_CMD_PAYLOAD_SIZE 320
273 * struct iwl_device_cmd
275 * For allocation of the command and tx queues, this establishes the overall
276 * size of the largest command we send to uCode, except for commands that
277 * aren't fully copied and use other TFD space.
279 struct iwl_device_cmd {
280 struct iwl_cmd_header hdr; /* uCode API */
286 struct iwl_tx_cmd tx;
287 struct iwl6000_channel_switch_cmd chswitch;
288 u8 payload[DEF_CMD_PAYLOAD_SIZE];
292 #define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_device_cmd))
294 #define IWL_MAX_CMD_TFDS 2
296 enum iwl_hcmd_dataflag {
297 IWL_HCMD_DFL_NOCOPY = BIT(0),
301 * struct iwl_host_cmd - Host command to the uCode
302 * @data: array of chunks that composes the data of the host command
303 * @reply_page: pointer to the page that holds the response to the host command
305 * @flags: can be CMD_* note CMD_WANT_SKB is incompatible withe CMD_ASYNC
306 * @len: array of the lenths of the chunks in data
308 * @id: id of the host command
310 struct iwl_host_cmd {
311 const void *data[IWL_MAX_CMD_TFDS];
312 unsigned long reply_page;
313 void (*callback)(struct iwl_priv *priv,
314 struct iwl_device_cmd *cmd,
315 struct iwl_rx_packet *pkt);
317 u16 len[IWL_MAX_CMD_TFDS];
318 u8 dataflags[IWL_MAX_CMD_TFDS];
322 #define SUP_RATE_11A_MAX_NUM_CHANNELS 8
323 #define SUP_RATE_11B_MAX_NUM_CHANNELS 4
324 #define SUP_RATE_11G_MAX_NUM_CHANNELS 12
326 #define IWL_SUPPORTED_RATES_IE_LEN 8
328 #define IWL_INVALID_RATE 0xFF
329 #define IWL_INVALID_VALUE -1
331 union iwl_ht_rate_supp {
339 #define CFG_HT_RX_AMPDU_FACTOR_8K (0x0)
340 #define CFG_HT_RX_AMPDU_FACTOR_16K (0x1)
341 #define CFG_HT_RX_AMPDU_FACTOR_32K (0x2)
342 #define CFG_HT_RX_AMPDU_FACTOR_64K (0x3)
343 #define CFG_HT_RX_AMPDU_FACTOR_DEF CFG_HT_RX_AMPDU_FACTOR_64K
344 #define CFG_HT_RX_AMPDU_FACTOR_MAX CFG_HT_RX_AMPDU_FACTOR_64K
345 #define CFG_HT_RX_AMPDU_FACTOR_MIN CFG_HT_RX_AMPDU_FACTOR_8K
348 * Maximal MPDU density for TX aggregation
354 #define CFG_HT_MPDU_DENSITY_2USEC (0x4)
355 #define CFG_HT_MPDU_DENSITY_4USEC (0x5)
356 #define CFG_HT_MPDU_DENSITY_8USEC (0x6)
357 #define CFG_HT_MPDU_DENSITY_16USEC (0x7)
358 #define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_4USEC
359 #define CFG_HT_MPDU_DENSITY_MAX CFG_HT_MPDU_DENSITY_16USEC
360 #define CFG_HT_MPDU_DENSITY_MIN (0x1)
362 struct iwl_ht_config {
363 bool single_chain_sufficient;
364 enum ieee80211_smps_mode smps; /* current smps mode */
368 struct iwl_qos_info {
370 struct iwl_qosparam_cmd def_qos_parm;
374 * Structure should be accessed with sta_lock held. When station addition
375 * is in progress (IWL_STA_UCODE_INPROGRESS) it is possible to access only
376 * the commands (iwl_addsta_cmd and iwl_link_quality_cmd) without sta_lock
379 struct iwl_station_entry {
380 struct iwl_addsta_cmd sta;
382 struct iwl_link_quality_cmd *lq;
385 struct iwl_station_priv_common {
386 struct iwl_rxon_context *ctx;
391 * iwl_station_priv: Driver's private station information
393 * When mac80211 creates a station it reserves some space (hw->sta_data_size)
394 * in the structure for use by driver. This structure is places in that
397 struct iwl_station_priv {
398 struct iwl_station_priv_common common;
399 struct iwl_lq_sta lq_sta;
400 atomic_t pending_frames;
407 * struct iwl_vif_priv - driver's private per-interface information
409 * When mac80211 allocates a virtual interface, it can allocate
410 * space for us to put data into.
412 struct iwl_vif_priv {
413 struct iwl_rxon_context *ctx;
414 u8 ibss_bssid_sta_id;
417 /* one for each uCode image (inst/data, boot/init/runtime) */
419 void *v_addr; /* access by driver */
420 dma_addr_t p_addr; /* access by card's busmaster DMA */
425 struct fw_desc code, data;
428 /* v1/v2 uCode file layout */
429 struct iwl_ucode_header {
430 __le32 ver; /* major/minor/API/serial */
433 __le32 inst_size; /* bytes of runtime code */
434 __le32 data_size; /* bytes of runtime data */
435 __le32 init_size; /* bytes of init code */
436 __le32 init_data_size; /* bytes of init data */
437 __le32 boot_size; /* bytes of bootstrap code */
438 u8 data[0]; /* in same order as sizes */
441 __le32 build; /* build number */
442 __le32 inst_size; /* bytes of runtime code */
443 __le32 data_size; /* bytes of runtime data */
444 __le32 init_size; /* bytes of init code */
445 __le32 init_data_size; /* bytes of init data */
446 __le32 boot_size; /* bytes of bootstrap code */
447 u8 data[0]; /* in same order as sizes */
453 * new TLV uCode file layout
455 * The new TLV file format contains TLVs, that each specify
456 * some piece of data. To facilitate "groups", for example
457 * different instruction image with different capabilities,
458 * bundled with the same init image, an alternative mechanism
460 * When the alternative field is 0, that means that the item
461 * is always valid. When it is non-zero, then it is only
462 * valid in conjunction with items of the same alternative,
463 * in which case the driver (user) selects one alternative
467 enum iwl_ucode_tlv_type {
468 IWL_UCODE_TLV_INVALID = 0, /* unused */
469 IWL_UCODE_TLV_INST = 1,
470 IWL_UCODE_TLV_DATA = 2,
471 IWL_UCODE_TLV_INIT = 3,
472 IWL_UCODE_TLV_INIT_DATA = 4,
473 IWL_UCODE_TLV_BOOT = 5,
474 IWL_UCODE_TLV_PROBE_MAX_LEN = 6, /* a u32 value */
475 IWL_UCODE_TLV_PAN = 7,
476 IWL_UCODE_TLV_RUNT_EVTLOG_PTR = 8,
477 IWL_UCODE_TLV_RUNT_EVTLOG_SIZE = 9,
478 IWL_UCODE_TLV_RUNT_ERRLOG_PTR = 10,
479 IWL_UCODE_TLV_INIT_EVTLOG_PTR = 11,
480 IWL_UCODE_TLV_INIT_EVTLOG_SIZE = 12,
481 IWL_UCODE_TLV_INIT_ERRLOG_PTR = 13,
482 IWL_UCODE_TLV_ENHANCE_SENS_TBL = 14,
483 IWL_UCODE_TLV_PHY_CALIBRATION_SIZE = 15,
484 IWL_UCODE_TLV_WOWLAN_INST = 16,
485 IWL_UCODE_TLV_WOWLAN_DATA = 17,
486 IWL_UCODE_TLV_FLAGS = 18,
490 * enum iwl_ucode_tlv_flag - ucode API flags
491 * @IWL_UCODE_TLV_FLAGS_PAN: This is PAN capable microcode; this previously
492 * was a separate TLV but moved here to save space.
493 * @IWL_UCODE_TLV_FLAGS_NEWSCAN: new uCode scan behaviour on hidden SSID,
494 * treats good CRC threshold as a boolean
495 * @IWL_UCODE_TLV_FLAGS_MFP: This uCode image supports MFP (802.11w).
496 * @IWL_UCODE_TLV_FLAGS_P2P: This uCode image supports P2P.
498 enum iwl_ucode_tlv_flag {
499 IWL_UCODE_TLV_FLAGS_PAN = BIT(0),
500 IWL_UCODE_TLV_FLAGS_NEWSCAN = BIT(1),
501 IWL_UCODE_TLV_FLAGS_MFP = BIT(2),
502 IWL_UCODE_TLV_FLAGS_P2P = BIT(3),
505 struct iwl_ucode_tlv {
506 __le16 type; /* see above */
507 __le16 alternative; /* see comment */
508 __le32 length; /* not including type/length fields */
512 #define IWL_TLV_UCODE_MAGIC 0x0a4c5749
514 struct iwl_tlv_ucode_header {
516 * The TLV style ucode header is distinguished from
517 * the v1/v2 style header by first four bytes being
518 * zero, as such is an invalid combination of
519 * major/minor/API/serial versions.
523 u8 human_readable[64];
524 __le32 ver; /* major/minor/API/serial */
526 __le64 alternatives; /* bitmask of valid alternatives */
528 * The data contained herein has a TLV layout,
529 * see above for the TLV header and types.
530 * Note that each TLV is padded to a length
531 * that is a multiple of 4 for alignment.
536 struct iwl_sensitivity_ranges {
543 u16 auto_corr_min_ofdm;
544 u16 auto_corr_min_ofdm_mrc;
545 u16 auto_corr_min_ofdm_x1;
546 u16 auto_corr_min_ofdm_mrc_x1;
548 u16 auto_corr_max_ofdm;
549 u16 auto_corr_max_ofdm_mrc;
550 u16 auto_corr_max_ofdm_x1;
551 u16 auto_corr_max_ofdm_mrc_x1;
553 u16 auto_corr_max_cck;
554 u16 auto_corr_max_cck_mrc;
555 u16 auto_corr_min_cck;
556 u16 auto_corr_min_cck_mrc;
558 u16 barker_corr_th_min;
559 u16 barker_corr_th_min_mrc;
564 #define KELVIN_TO_CELSIUS(x) ((x)-273)
565 #define CELSIUS_TO_KELVIN(x) ((x)+273)
568 /******************************************************************************
570 * Functions implemented in core module which are forward declared here
571 * for use by iwl-[4-5].c
573 * NOTE: The implementation of these functions are not hardware specific
574 * which is why they are in the core module files.
576 * Naming convention --
577 * iwl_ <-- Is part of iwlwifi
578 * iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
580 ****************************************************************************/
581 extern void iwl_update_chain_flags(struct iwl_priv *priv);
582 extern const u8 iwl_bcast_addr[ETH_ALEN];
583 extern int iwl_queue_space(const struct iwl_queue *q);
584 static inline int iwl_queue_used(const struct iwl_queue *q, int i)
586 return q->write_ptr >= q->read_ptr ?
587 (i >= q->read_ptr && i < q->write_ptr) :
588 !(i < q->read_ptr && i >= q->write_ptr);
592 static inline u8 get_cmd_index(struct iwl_queue *q, u32 index)
594 return index & (q->n_window - 1);
597 #define IWL_OPERATION_MODE_AUTO 0
598 #define IWL_OPERATION_MODE_HT_ONLY 1
599 #define IWL_OPERATION_MODE_MIXED 2
600 #define IWL_OPERATION_MODE_20MHZ 3
602 #define IWL_TX_CRC_SIZE 4
603 #define IWL_TX_DELIMITER_SIZE 4
605 #define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
607 /* Sensitivity and chain noise calibration */
608 #define INITIALIZATION_VALUE 0xFFFF
609 #define IWL_CAL_NUM_BEACONS 16
610 #define MAXIMUM_ALLOWED_PATHLOSS 15
612 #define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
614 #define MAX_FA_OFDM 50
615 #define MIN_FA_OFDM 5
616 #define MAX_FA_CCK 50
619 #define AUTO_CORR_STEP_OFDM 1
621 #define AUTO_CORR_STEP_CCK 3
622 #define AUTO_CORR_MAX_TH_CCK 160
625 #define NRG_STEP_CCK 2
627 #define MAX_NUMBER_CCK_NO_FA 100
629 #define AUTO_CORR_CCK_MIN_VAL_DEF (125)
634 #define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
635 #define ALL_BAND_FILTER 0xFF00
636 #define IN_BAND_FILTER 0xFF
637 #define MIN_AVERAGE_NOISE_MAX_VALUE 0xFFFFFFFF
639 #define NRG_NUM_PREV_STAT_L 20
640 #define NUM_RX_CHAINS 3
642 enum iwlagn_false_alarm_state {
645 IWL_FA_GOOD_RANGE = 2,
648 enum iwlagn_chain_noise_state {
649 IWL_CHAIN_NOISE_ALIVE = 0, /* must be 0 */
650 IWL_CHAIN_NOISE_ACCUMULATE,
651 IWL_CHAIN_NOISE_CALIBRATED,
652 IWL_CHAIN_NOISE_DONE,
658 * defines the order in which results of initial calibrations
659 * should be sent to the runtime uCode
666 IWL_CALIB_TX_IQ_PERD,
668 IWL_CALIB_TEMP_OFFSET,
672 /* Opaque calibration results */
673 struct iwl_calib_result {
678 /* Sensitivity calib data */
679 struct iwl_sensitivity_data {
681 u32 auto_corr_ofdm_mrc;
682 u32 auto_corr_ofdm_x1;
683 u32 auto_corr_ofdm_mrc_x1;
685 u32 auto_corr_cck_mrc;
687 u32 last_bad_plcp_cnt_ofdm;
688 u32 last_fa_cnt_ofdm;
689 u32 last_bad_plcp_cnt_cck;
695 u8 nrg_silence_rssi[NRG_NUM_PREV_STAT_L];
700 s32 nrg_auto_corr_silence_diff;
701 u32 num_in_cck_no_fa;
704 u16 barker_corr_th_min;
705 u16 barker_corr_th_min_mrc;
709 /* Chain noise (differential Rx gain) calib data */
710 struct iwl_chain_noise_data {
719 u8 disconn_array[NUM_RX_CHAINS];
720 u8 delta_gain_code[NUM_RX_CHAINS];
725 #define EEPROM_SEM_TIMEOUT 10 /* milliseconds */
726 #define EEPROM_SEM_RETRY_LIMIT 1000 /* number of attempts (not time) */
728 #define IWL_TRAFFIC_ENTRIES (256)
729 #define IWL_TRAFFIC_ENTRY_SIZE (64)
732 MEASUREMENT_READY = (1 << 0),
733 MEASUREMENT_ACTIVE = (1 << 1),
737 NVM_DEVICE_TYPE_EEPROM = 0,
742 * Two types of OTP memory access modes
743 * IWL_OTP_ACCESS_ABSOLUTE - absolute address mode,
744 * based on physical memory addressing
745 * IWL_OTP_ACCESS_RELATIVE - relative address mode,
746 * based on logical memory addressing
748 enum iwl_access_mode {
749 IWL_OTP_ACCESS_ABSOLUTE,
750 IWL_OTP_ACCESS_RELATIVE,
754 * enum iwl_pa_type - Power Amplifier type
755 * @IWL_PA_SYSTEM: based on uCode configuration
756 * @IWL_PA_INTERNAL: use Internal only
763 /* reply_tx_statistics (for _agn devices) */
764 struct reply_tx_error_statistics {
770 u32 int_crossed_retry;
786 u32 sta_color_mismatch;
790 /* reply_agg_tx_statistics (for _agn devices) */
791 struct reply_agg_tx_error_statistics {
798 u32 last_sent_bt_kill;
807 /* management statistics */
808 enum iwl_mgmt_stats {
809 MANAGEMENT_ASSOC_REQ = 0,
810 MANAGEMENT_ASSOC_RESP,
811 MANAGEMENT_REASSOC_REQ,
812 MANAGEMENT_REASSOC_RESP,
813 MANAGEMENT_PROBE_REQ,
814 MANAGEMENT_PROBE_RESP,
823 /* control statistics */
824 enum iwl_ctrl_stats {
825 CONTROL_BACK_REQ = 0,
836 struct traffic_stats {
837 #ifdef CONFIG_IWLWIFI_DEBUGFS
838 u32 mgmt[MANAGEMENT_MAX];
839 u32 ctrl[CONTROL_MAX];
846 * schedule the timer to wake up every UCODE_TRACE_PERIOD milliseconds
847 * to perform continuous uCode event logging operation if enabled
849 #define UCODE_TRACE_PERIOD (100)
852 * iwl_event_log: current uCode event log position
854 * @ucode_trace: enable/disable ucode continuous trace timer
855 * @num_wraps: how many times the event buffer wraps
856 * @next_entry: the entry just before the next one that uCode would fill
857 * @non_wraps_count: counter for no wrap detected when dump ucode events
858 * @wraps_once_count: counter for wrap once detected when dump ucode events
859 * @wraps_more_count: counter for wrap more than once detected
860 * when dump ucode events
862 struct iwl_event_log {
867 int wraps_once_count;
868 int wraps_more_count;
872 * host interrupt timeout value
873 * used with setting interrupt coalescing timer
874 * the CSR_INT_COALESCING is an 8 bit register in 32-usec unit
876 * default interrupt coalescing timer is 64 x 32 = 2048 usecs
877 * default interrupt coalescing calibration timer is 16 x 32 = 512 usecs
879 #define IWL_HOST_INT_TIMEOUT_MAX (0xFF)
880 #define IWL_HOST_INT_TIMEOUT_DEF (0x40)
881 #define IWL_HOST_INT_TIMEOUT_MIN (0x0)
882 #define IWL_HOST_INT_CALIB_TIMEOUT_MAX (0xFF)
883 #define IWL_HOST_INT_CALIB_TIMEOUT_DEF (0x10)
884 #define IWL_HOST_INT_CALIB_TIMEOUT_MIN (0x0)
887 * This is the threshold value of plcp error rate per 100mSecs. It is
888 * used to set and check for the validity of plcp_delta.
890 #define IWL_MAX_PLCP_ERR_THRESHOLD_MIN (1)
891 #define IWL_MAX_PLCP_ERR_THRESHOLD_DEF (50)
892 #define IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF (100)
893 #define IWL_MAX_PLCP_ERR_EXT_LONG_THRESHOLD_DEF (200)
894 #define IWL_MAX_PLCP_ERR_THRESHOLD_MAX (255)
895 #define IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE (0)
897 #define IWL_DELAY_NEXT_FORCE_RF_RESET (HZ*3)
898 #define IWL_DELAY_NEXT_FORCE_FW_RELOAD (HZ*5)
900 /* TX queue watchdog timeouts in mSecs */
901 #define IWL_DEF_WD_TIMEOUT (2000)
902 #define IWL_LONG_WD_TIMEOUT (10000)
903 #define IWL_MAX_WD_TIMEOUT (120000)
905 /* BT Antenna Coupling Threshold (dB) */
906 #define IWL_BT_ANTENNA_COUPLING_THRESHOLD (35)
908 /* Firmware reload counter and Timestamp */
909 #define IWL_MIN_RELOAD_DURATION 1000 /* 1000 ms */
910 #define IWL_MAX_CONTINUE_RELOAD_CNT 4
919 struct iwl_force_reset {
920 int reset_request_count;
921 int reset_success_count;
922 int reset_reject_count;
923 unsigned long reset_duration;
924 unsigned long last_force_reset_jiffies;
927 /* extend beacon time format bit shifting */
930 * bits 31:22 - extended
931 * bits 21:0 - interval
933 #define IWLAGN_EXT_BEACON_TIME_POS 22
936 * struct iwl_notification_wait - notification wait entry
937 * @list: list head for global list
938 * @fn: function called with the notification
941 * This structure is not used directly, to wait for a
942 * notification declare it on the stack, and call
943 * iwlagn_init_notification_wait() with appropriate
944 * parameters. Then do whatever will cause the ucode
945 * to notify the driver, and to wait for that then
946 * call iwlagn_wait_notification().
948 * Each notification is one-shot. If at some point we
949 * need to support multi-shot notifications (which
950 * can't be allocated on the stack) we need to modify
953 struct iwl_notification_wait {
954 struct list_head list;
956 void (*fn)(struct iwl_priv *priv, struct iwl_rx_packet *pkt,
961 bool triggered, aborted;
964 enum iwl_rxon_context_id {
971 struct iwl_rxon_context {
972 struct ieee80211_vif *vif;
974 const u8 *ac_to_fifo;
975 const u8 *ac_to_queue;
979 * We could use the vif to indicate active, but we
980 * also need it to be active during disabling when
981 * we already removed the vif for type setting.
983 bool always_active, is_active;
985 bool ht_need_multiple_chains;
987 enum iwl_rxon_context_id ctxid;
989 u32 interface_modes, exclusive_interface_modes;
990 u8 unused_devtype, ap_devtype, ibss_devtype, station_devtype;
993 * We declare this const so it can only be
994 * changed via explicit cast within the
995 * routines that actually update the physical
998 const struct iwl_rxon_cmd active;
999 struct iwl_rxon_cmd staging;
1001 struct iwl_rxon_time_cmd timing;
1003 struct iwl_qos_info qos_data;
1005 u8 bcast_sta_id, ap_sta_id;
1007 u8 rxon_cmd, rxon_assoc_cmd, rxon_timing_cmd;
1011 struct iwl_wep_key wep_keys[WEP_KEYS_MAX];
1012 u8 key_mapping_keys;
1014 __le32 station_flags;
1019 bool non_gf_sta_present;
1021 bool enabled, is_40mhz;
1022 u8 extension_chan_offset;
1025 bool last_tx_rejected;
1028 enum iwl_scan_type {
1030 IWL_SCAN_RADIO_RESET,
1034 enum iwlagn_ucode_type {
1041 #ifdef CONFIG_IWLWIFI_DEVICE_SVTOOL
1042 struct iwl_testmode_trace {
1048 dma_addr_t dma_addr;
1055 /*data shared among all the driver's layers */
1056 struct iwl_shared _shrd;
1057 struct iwl_shared *shrd;
1059 /* ieee device used by generic ieee processing code */
1060 struct ieee80211_hw *hw;
1061 struct ieee80211_channel *ieee_channels;
1062 struct ieee80211_rate *ieee_rates;
1063 struct iwl_cfg *cfg;
1065 enum ieee80211_band band;
1067 void (*pre_rx_handler)(struct iwl_priv *priv,
1068 struct iwl_rx_mem_buffer *rxb);
1069 void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv,
1070 struct iwl_rx_mem_buffer *rxb);
1072 struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
1074 /* spectrum measurement report caching */
1075 struct iwl_spectrum_notification measure_report;
1076 u8 measurement_status;
1078 /* ucode beacon time */
1079 u32 ucode_beacon_time;
1080 int missed_beacon_threshold;
1082 /* track IBSS manager (last beacon) status */
1085 /* jiffies when last recovery from statistics was performed */
1086 unsigned long rx_statistics_jiffies;
1089 u32 rx_handlers_stats[REPLY_MAX];
1092 struct iwl_force_reset force_reset[IWL_MAX_FORCE_RESET];
1094 /* firmware reload counter and timestamp */
1095 unsigned long reload_jiffies;
1098 /* we allocate array of iwl_channel_info for NIC's valid channels.
1099 * Access via channel # using indirect index array */
1100 struct iwl_channel_info *channel_info; /* channel info array */
1101 u8 channel_count; /* # of channels */
1103 /* thermal calibration */
1104 s32 temperature; /* degrees Kelvin */
1105 s32 last_temperature;
1107 /* init calibration results */
1108 struct iwl_calib_result calib_results[IWL_CALIB_MAX];
1110 /* Scan related variables */
1111 unsigned long scan_start;
1112 unsigned long scan_start_tsf;
1114 enum ieee80211_band scan_band;
1115 struct cfg80211_scan_request *scan_request;
1116 struct ieee80211_vif *scan_vif;
1117 enum iwl_scan_type scan_type;
1118 u8 scan_tx_ant[IEEE80211_NUM_BANDS];
1121 /*TODO: remove these pointers - use bus(priv) instead */
1122 struct iwl_bus *bus; /* bus specific data */
1124 /* microcode/device supports multiple contexts */
1127 /* max number of station keys */
1130 bool new_scan_threshold_behaviour;
1132 /* EEPROM MAC addresses */
1133 struct mac_address addresses[2];
1135 /* uCode images, save to reload in case of failure */
1136 int fw_index; /* firmware we're trying to load */
1137 u32 ucode_ver; /* version of ucode, copy of
1140 struct fw_img ucode_rt;
1141 struct fw_img ucode_init;
1142 struct fw_img ucode_wowlan;
1144 enum iwlagn_ucode_type ucode_type;
1145 u8 ucode_write_complete; /* the image write is complete */
1146 char firmware_name[25];
1148 struct iwl_rxon_context contexts[NUM_IWL_RXON_CTX];
1150 __le16 switch_channel;
1153 u32 error_event_table;
1154 u32 log_event_table;
1160 struct iwl_sensitivity_data sensitivity_data;
1161 struct iwl_chain_noise_data chain_noise_data;
1162 bool enhance_sensitivity_table;
1163 __le16 sensitivity_tbl[HD_TABLE_SIZE];
1164 __le16 enhance_sensitivity_tbl[ENHANCE_HD_TABLE_ENTRIES];
1166 struct iwl_ht_config current_ht_config;
1168 /* Rate scaling data */
1171 wait_queue_head_t wait_command_queue;
1173 int activity_timer_active;
1175 /* Tx DMA processing queues */
1176 struct iwl_tx_queue *txq;
1177 unsigned long txq_ctx_active_msk;
1179 /* counts mgmt, ctl, and data packets */
1180 struct traffic_stats tx_stats;
1181 struct traffic_stats rx_stats;
1183 struct iwl_power_mgr power_data;
1184 struct iwl_tt_mgmt thermal_throttle;
1186 /* station table variables */
1188 struct iwl_station_entry stations[IWLAGN_STATION_COUNT];
1189 unsigned long ucode_key_table;
1191 /* queue refcounts */
1192 #define IWL_MAX_HW_QUEUES 32
1193 unsigned long queue_stopped[BITS_TO_LONGS(IWL_MAX_HW_QUEUES)];
1195 atomic_t queue_stop_count[4];
1197 /* Indication if ieee80211_ops->open has been called */
1200 u8 mac80211_registered;
1202 /* eeprom -- this is in the card's little endian byte order */
1204 int nvm_device_type;
1205 struct iwl_eeprom_calib_info *calib_info;
1207 enum nl80211_iftype iw_mode;
1209 /* Last Rx'd beacon timestamp */
1214 struct statistics_general_common common;
1215 struct statistics_rx_non_phy rx_non_phy;
1216 struct statistics_rx_phy rx_ofdm;
1217 struct statistics_rx_ht_phy rx_ofdm_ht;
1218 struct statistics_rx_phy rx_cck;
1219 struct statistics_tx tx;
1220 #ifdef CONFIG_IWLWIFI_DEBUGFS
1221 struct statistics_bt_activity bt_activity;
1222 __le32 num_bt_kills, accum_num_bt_kills;
1225 #ifdef CONFIG_IWLWIFI_DEBUGFS
1227 struct statistics_general_common common;
1228 struct statistics_rx_non_phy rx_non_phy;
1229 struct statistics_rx_phy rx_ofdm;
1230 struct statistics_rx_ht_phy rx_ofdm_ht;
1231 struct statistics_rx_phy rx_cck;
1232 struct statistics_tx tx;
1233 struct statistics_bt_activity bt_activity;
1234 } accum_stats, delta_stats, max_delta_stats;
1238 * reporting the number of tids has AGG on. 0 means
1243 struct iwl_rx_phy_res last_phy_res;
1244 bool last_phy_res_valid;
1246 struct completion firmware_loading_complete;
1248 u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr;
1249 u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr;
1252 * chain noise reset and gain commands are the
1253 * two extra calibration commands follows the standard
1254 * phy calibration commands
1256 u8 phy_calib_chain_noise_reset_cmd;
1257 u8 phy_calib_chain_noise_gain_cmd;
1259 /* counts reply_tx error */
1260 struct reply_tx_error_statistics reply_tx_stats;
1261 struct reply_agg_tx_error_statistics reply_agg_tx_stats;
1262 /* notification wait support */
1263 struct list_head notif_waits;
1264 spinlock_t notif_wait_lock;
1265 wait_queue_head_t notif_waitq;
1267 /* remain-on-channel offload support */
1268 struct ieee80211_channel *hw_roc_channel;
1269 struct delayed_work hw_roc_disable_work;
1270 enum nl80211_channel_type hw_roc_chantype;
1271 int hw_roc_duration;
1277 u8 bt_traffic_load, last_bt_traffic_load;
1278 bool bt_ch_announce;
1279 bool bt_full_concurrent;
1280 bool bt_ant_couple_ok;
1281 __le32 kill_ack_mask;
1282 __le32 kill_cts_mask;
1286 u16 dynamic_frag_thresh;
1287 u8 bt_ci_compliance;
1288 struct work_struct bt_traffic_change_work;
1289 bool bt_enable_pspoll;
1290 struct iwl_rxon_context *cur_rssi_ctx;
1293 struct work_struct restart;
1294 struct work_struct scan_completed;
1295 struct work_struct abort_scan;
1297 struct work_struct beacon_update;
1298 struct iwl_rxon_context *beacon_ctx;
1299 struct sk_buff *beacon_skb;
1302 struct work_struct tt_work;
1303 struct work_struct ct_enter;
1304 struct work_struct ct_exit;
1305 struct work_struct start_internal_scan;
1306 struct work_struct tx_flush;
1307 struct work_struct bt_full_concurrency;
1308 struct work_struct bt_runtime_config;
1310 struct delayed_work scan_check;
1313 s8 tx_power_user_lmt;
1314 s8 tx_power_device_lmt;
1315 s8 tx_power_lmt_in_half_dbm; /* max tx power in half-dBm format */
1318 #ifdef CONFIG_IWLWIFI_DEBUGFS
1324 struct dentry *debugfs_dir;
1325 u32 dbgfs_sram_offset, dbgfs_sram_len;
1328 #endif /* CONFIG_IWLWIFI_DEBUGFS */
1330 struct work_struct txpower_work;
1331 u32 disable_sens_cal;
1332 u32 disable_chain_noise_cal;
1333 struct work_struct run_time_calib_work;
1334 struct timer_list statistics_periodic;
1335 struct timer_list ucode_trace;
1336 struct timer_list watchdog;
1338 struct iwl_event_log event_log;
1340 struct led_classdev led;
1341 unsigned long blink_on, blink_off;
1342 bool led_registered;
1343 #ifdef CONFIG_IWLWIFI_DEVICE_SVTOOL
1344 struct iwl_testmode_trace testmode_trace;
1348 /* WoWLAN GTK rekey data */
1349 u8 kck[NL80211_KCK_LEN], kek[NL80211_KEK_LEN];
1351 __le16 last_seq_ctl;
1352 bool have_rekey_data;
1355 static inline void iwl_txq_ctx_activate(struct iwl_priv *priv, int txq_id)
1357 set_bit(txq_id, &priv->txq_ctx_active_msk);
1360 static inline void iwl_txq_ctx_deactivate(struct iwl_priv *priv, int txq_id)
1362 clear_bit(txq_id, &priv->txq_ctx_active_msk);
1365 extern struct iwl_mod_params iwlagn_mod_params;
1367 static inline struct ieee80211_hdr *iwl_tx_queue_get_hdr(struct iwl_priv *priv,
1368 int txq_id, int idx)
1370 if (priv->txq[txq_id].skbs[idx])
1371 return (struct ieee80211_hdr *)priv->txq[txq_id].
1376 static inline struct iwl_rxon_context *
1377 iwl_rxon_ctx_from_vif(struct ieee80211_vif *vif)
1379 struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
1381 return vif_priv->ctx;
1384 #define for_each_context(priv, ctx) \
1385 for (ctx = &priv->contexts[IWL_RXON_CTX_BSS]; \
1386 ctx < &priv->contexts[NUM_IWL_RXON_CTX]; ctx++) \
1387 if (priv->valid_contexts & BIT(ctx->ctxid))
1389 static inline int iwl_is_associated_ctx(struct iwl_rxon_context *ctx)
1391 return (ctx->active.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
1394 static inline int iwl_is_associated(struct iwl_priv *priv,
1395 enum iwl_rxon_context_id ctxid)
1397 return iwl_is_associated_ctx(&priv->contexts[ctxid]);
1400 static inline int iwl_is_any_associated(struct iwl_priv *priv)
1402 struct iwl_rxon_context *ctx;
1403 for_each_context(priv, ctx)
1404 if (iwl_is_associated_ctx(ctx))
1409 static inline int is_channel_valid(const struct iwl_channel_info *ch_info)
1411 if (ch_info == NULL)
1413 return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
1416 static inline int is_channel_radar(const struct iwl_channel_info *ch_info)
1418 return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
1421 static inline u8 is_channel_a_band(const struct iwl_channel_info *ch_info)
1423 return ch_info->band == IEEE80211_BAND_5GHZ;
1426 static inline u8 is_channel_bg_band(const struct iwl_channel_info *ch_info)
1428 return ch_info->band == IEEE80211_BAND_2GHZ;
1431 static inline int is_channel_passive(const struct iwl_channel_info *ch)
1433 return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
1436 static inline int is_channel_ibss(const struct iwl_channel_info *ch)
1438 return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
1441 #endif /* __iwl_dev_h__ */