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"
45 #include "iwl-debug.h"
46 #include "iwl-agn-hw.h"
48 #include "iwl-power.h"
49 #include "iwl-agn-rs.h"
50 #include "iwl-agn-tt.h"
52 #include "iwl-trans.h"
53 #include "iwl-shared.h"
55 #define DRV_NAME "iwlagn"
59 /* CT-KILL constants */
60 #define CT_KILL_THRESHOLD_LEGACY 110 /* in Celsius */
61 #define CT_KILL_THRESHOLD 114 /* in Celsius */
62 #define CT_KILL_EXIT_THRESHOLD 95 /* in Celsius */
64 /* Default noise level to report when noise measurement is not available.
65 * This may be because we're:
66 * 1) Not associated (4965, no beacon statistics being sent to driver)
67 * 2) Scanning (noise measurement does not apply to associated channel)
68 * 3) Receiving CCK (3945 delivers noise info only for OFDM frames)
69 * Use default noise value of -127 ... this is below the range of measurable
70 * Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
71 * Also, -127 works better than 0 when averaging frames with/without
72 * noise info (e.g. averaging might be done in app); measured dBm values are
73 * always negative ... using a negative value as the default keeps all
74 * averages within an s8's (used in some apps) range of negative values. */
75 #define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
78 * RTS threshold here is total size [2347] minus 4 FCS bytes
80 * a value of 0 means RTS on all data/management packets
81 * a value > max MSDU size means no RTS
82 * else RTS for data/management frames where MPDU is larger
85 #define DEFAULT_RTS_THRESHOLD 2347U
86 #define MIN_RTS_THRESHOLD 0U
87 #define MAX_RTS_THRESHOLD 2347U
88 #define MAX_MSDU_SIZE 2304U
89 #define MAX_MPDU_SIZE 2346U
90 #define DEFAULT_BEACON_INTERVAL 200U
91 #define DEFAULT_SHORT_RETRY_LIMIT 7U
92 #define DEFAULT_LONG_RETRY_LIMIT 4U
94 struct iwl_rx_mem_buffer {
97 struct list_head list;
100 #define rxb_addr(r) page_address(r->page)
103 struct iwl_device_cmd;
105 struct iwl_cmd_meta {
106 /* only for SYNC commands, iff the reply skb is wanted */
107 struct iwl_host_cmd *source;
109 * only for ASYNC commands
110 * (which is somewhat stupid -- look at iwl-sta.c for instance
111 * which duplicates a bunch of code because the callback isn't
112 * invoked for SYNC commands, if it were and its result passed
113 * through it would be simpler...)
115 void (*callback)(struct iwl_priv *priv,
116 struct iwl_device_cmd *cmd,
117 struct iwl_rx_packet *pkt);
121 DEFINE_DMA_UNMAP_ADDR(mapping);
122 DEFINE_DMA_UNMAP_LEN(len);
126 * Generic queue structure
128 * Contains common data for Rx and Tx queues.
130 * Note the difference between n_bd and n_window: the hardware
131 * always assumes 256 descriptors, so n_bd is always 256 (unless
132 * there might be HW changes in the future). For the normal TX
133 * queues, n_window, which is the size of the software queue data
134 * is also 256; however, for the command queue, n_window is only
135 * 32 since we don't need so many commands pending. Since the HW
136 * still uses 256 BDs for DMA though, n_bd stays 256. As a result,
137 * the software buffers (in the variables @meta, @txb in struct
138 * iwl_tx_queue) only have 32 entries, while the HW buffers (@tfds
139 * in the same struct) have 256.
140 * This means that we end up with the following:
141 * HW entries: | 0 | ... | N * 32 | ... | N * 32 + 31 | ... | 255 |
142 * SW entries: | 0 | ... | 31 |
143 * where N is a number between 0 and 7. This means that the SW
144 * data is a window overlayed over the HW queue.
147 int n_bd; /* number of BDs in this queue */
148 int write_ptr; /* 1-st empty entry (index) host_w*/
149 int read_ptr; /* last used entry (index) host_r*/
150 /* use for monitoring and recovering the stuck queue */
151 dma_addr_t dma_addr; /* physical addr for BD's */
152 int n_window; /* safe queue window */
154 int low_mark; /* low watermark, resume queue if free
155 * space more than this */
156 int high_mark; /* high watermark, stop queue if free
157 * space less than this */
160 /* One for each TFD */
163 struct iwl_rxon_context *ctx;
167 * struct iwl_tx_queue - Tx Queue for DMA
168 * @q: generic Rx/Tx queue descriptor
169 * @bd: base of circular buffer of TFDs
170 * @cmd: array of command/TX buffer pointers
171 * @meta: array of meta data for each command/tx buffer
172 * @dma_addr_cmd: physical address of cmd/tx buffer array
173 * @txb: array of per-TFD driver data
174 * @time_stamp: time (in jiffies) of last read_ptr change
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 {
186 struct iwl_tfd *tfds;
187 struct iwl_device_cmd **cmd;
188 struct iwl_cmd_meta *meta;
189 struct iwl_tx_info *txb;
190 unsigned long time_stamp;
197 #define IWL_NUM_SCAN_RATES (2)
200 * One for each channel, holds all channel setup data
201 * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
204 struct iwl_channel_info {
205 struct iwl_eeprom_channel eeprom; /* EEPROM regulatory limit */
206 struct iwl_eeprom_channel ht40_eeprom; /* EEPROM regulatory limit for
209 u8 channel; /* channel number */
210 u8 flags; /* flags copied from EEPROM */
211 s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
212 s8 curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) limit */
213 s8 min_power; /* always 0 */
214 s8 scan_power; /* (dBm) regul. eeprom, direct scans, any rate */
216 u8 group_index; /* 0-4, maps channel to group1/2/3/4/5 */
217 u8 band_index; /* 0-4, maps channel to band1/2/3/4/5 */
218 enum ieee80211_band band;
220 /* HT40 channel info */
221 s8 ht40_max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
222 u8 ht40_flags; /* flags copied from EEPROM */
223 u8 ht40_extension_channel; /* HT_IE_EXT_CHANNEL_* */
226 #define IWL_TX_FIFO_BK 0 /* shared */
227 #define IWL_TX_FIFO_BE 1
228 #define IWL_TX_FIFO_VI 2 /* shared */
229 #define IWL_TX_FIFO_VO 3
230 #define IWL_TX_FIFO_BK_IPAN IWL_TX_FIFO_BK
231 #define IWL_TX_FIFO_BE_IPAN 4
232 #define IWL_TX_FIFO_VI_IPAN IWL_TX_FIFO_VI
233 #define IWL_TX_FIFO_VO_IPAN 5
234 /* re-uses the VO FIFO, uCode will properly flush/schedule */
235 #define IWL_TX_FIFO_AUX 5
236 #define IWL_TX_FIFO_UNUSED -1
238 /* AUX (TX during scan dwell) queue */
239 #define IWL_AUX_QUEUE 10
242 * Minimum number of queues. MAX_NUM is defined in hw specific files.
243 * Set the minimum to accommodate
244 * - 4 standard TX queues
245 * - the command queue
247 * - the PAN multicast queue, and
248 * - the AUX (TX during scan dwell) queue.
250 #define IWL_MIN_NUM_QUEUES 11
253 * Command queue depends on iPAN support.
255 #define IWL_DEFAULT_CMD_QUEUE_NUM 4
256 #define IWL_IPAN_CMD_QUEUE_NUM 9
259 * This queue number is required for proper operation
260 * because the ucode will stop/start the scheduler as
263 #define IWL_IPAN_MCAST_QUEUE 8
265 #define IEEE80211_DATA_LEN 2304
266 #define IEEE80211_4ADDR_LEN 30
267 #define IEEE80211_HLEN (IEEE80211_4ADDR_LEN)
268 #define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
271 #define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
272 #define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
273 #define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
278 CMD_WANT_SKB = BIT(1),
279 CMD_ON_DEMAND = BIT(2),
282 #define DEF_CMD_PAYLOAD_SIZE 320
285 * struct iwl_device_cmd
287 * For allocation of the command and tx queues, this establishes the overall
288 * size of the largest command we send to uCode, except for commands that
289 * aren't fully copied and use other TFD space.
291 struct iwl_device_cmd {
292 struct iwl_cmd_header hdr; /* uCode API */
298 struct iwl_tx_cmd tx;
299 struct iwl6000_channel_switch_cmd chswitch;
300 u8 payload[DEF_CMD_PAYLOAD_SIZE];
304 #define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_device_cmd))
306 #define IWL_MAX_CMD_TFDS 2
308 enum iwl_hcmd_dataflag {
309 IWL_HCMD_DFL_NOCOPY = BIT(0),
313 * struct iwl_host_cmd - Host command to the uCode
314 * @data: array of chunks that composes the data of the host command
315 * @reply_page: pointer to the page that holds the response to the host command
317 * @flags: can be CMD_* note CMD_WANT_SKB is incompatible withe CMD_ASYNC
318 * @len: array of the lenths of the chunks in data
320 * @id: id of the host command
322 struct iwl_host_cmd {
323 const void *data[IWL_MAX_CMD_TFDS];
324 unsigned long reply_page;
325 void (*callback)(struct iwl_priv *priv,
326 struct iwl_device_cmd *cmd,
327 struct iwl_rx_packet *pkt);
329 u16 len[IWL_MAX_CMD_TFDS];
330 u8 dataflags[IWL_MAX_CMD_TFDS];
334 #define SUP_RATE_11A_MAX_NUM_CHANNELS 8
335 #define SUP_RATE_11B_MAX_NUM_CHANNELS 4
336 #define SUP_RATE_11G_MAX_NUM_CHANNELS 12
339 * struct iwl_rx_queue - Rx queue
340 * @bd: driver's pointer to buffer of receive buffer descriptors (rbd)
341 * @bd_dma: bus address of buffer of receive buffer descriptors (rbd)
342 * @read: Shared index to newest available Rx buffer
343 * @write: Shared index to oldest written Rx packet
344 * @free_count: Number of pre-allocated buffers in rx_free
345 * @rx_free: list of free SKBs for use
346 * @rx_used: List of Rx buffers with no SKB
347 * @need_update: flag to indicate we need to update read/write index
348 * @rb_stts: driver's pointer to receive buffer status
349 * @rb_stts_dma: bus address of receive buffer status
351 * NOTE: rx_free and rx_used are used as a FIFO for iwl_rx_mem_buffers
353 struct iwl_rx_queue {
356 struct iwl_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
357 struct iwl_rx_mem_buffer *queue[RX_QUEUE_SIZE];
362 struct list_head rx_free;
363 struct list_head rx_used;
365 struct iwl_rb_status *rb_stts;
366 dma_addr_t rb_stts_dma;
370 #define IWL_SUPPORTED_RATES_IE_LEN 8
372 #define MAX_TID_COUNT 9
374 #define IWL_INVALID_RATE 0xFF
375 #define IWL_INVALID_VALUE -1
378 * struct iwl_ht_agg -- aggregation status while waiting for block-ack
379 * @txq_id: Tx queue used for Tx attempt
380 * @frame_count: # frames attempted by Tx command
381 * @wait_for_ba: Expect block-ack before next Tx reply
382 * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window
383 * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window
384 * @bitmap1: High order, one bit for each frame pending ACK in Tx window
385 * @rate_n_flags: Rate at which Tx was attempted
387 * If REPLY_TX indicates that aggregation was attempted, driver must wait
388 * for block ack (REPLY_COMPRESSED_BA). This struct stores tx reply info
389 * until block ack arrives.
398 #define IWL_AGG_OFF 0
400 #define IWL_EMPTYING_HW_QUEUE_ADDBA 2
401 #define IWL_EMPTYING_HW_QUEUE_DELBA 3
407 struct iwl_tid_data {
408 u16 seq_number; /* agn only */
410 struct iwl_ht_agg agg;
413 union iwl_ht_rate_supp {
421 #define CFG_HT_RX_AMPDU_FACTOR_8K (0x0)
422 #define CFG_HT_RX_AMPDU_FACTOR_16K (0x1)
423 #define CFG_HT_RX_AMPDU_FACTOR_32K (0x2)
424 #define CFG_HT_RX_AMPDU_FACTOR_64K (0x3)
425 #define CFG_HT_RX_AMPDU_FACTOR_DEF CFG_HT_RX_AMPDU_FACTOR_64K
426 #define CFG_HT_RX_AMPDU_FACTOR_MAX CFG_HT_RX_AMPDU_FACTOR_64K
427 #define CFG_HT_RX_AMPDU_FACTOR_MIN CFG_HT_RX_AMPDU_FACTOR_8K
430 * Maximal MPDU density for TX aggregation
436 #define CFG_HT_MPDU_DENSITY_2USEC (0x4)
437 #define CFG_HT_MPDU_DENSITY_4USEC (0x5)
438 #define CFG_HT_MPDU_DENSITY_8USEC (0x6)
439 #define CFG_HT_MPDU_DENSITY_16USEC (0x7)
440 #define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_4USEC
441 #define CFG_HT_MPDU_DENSITY_MAX CFG_HT_MPDU_DENSITY_16USEC
442 #define CFG_HT_MPDU_DENSITY_MIN (0x1)
444 struct iwl_ht_config {
445 bool single_chain_sufficient;
446 enum ieee80211_smps_mode smps; /* current smps mode */
450 struct iwl_qos_info {
452 struct iwl_qosparam_cmd def_qos_parm;
456 * Structure should be accessed with sta_lock held. When station addition
457 * is in progress (IWL_STA_UCODE_INPROGRESS) it is possible to access only
458 * the commands (iwl_addsta_cmd and iwl_link_quality_cmd) without sta_lock
461 struct iwl_station_entry {
462 struct iwl_addsta_cmd sta;
463 struct iwl_tid_data tid[MAX_TID_COUNT];
465 struct iwl_link_quality_cmd *lq;
468 struct iwl_station_priv_common {
469 struct iwl_rxon_context *ctx;
474 * iwl_station_priv: Driver's private station information
476 * When mac80211 creates a station it reserves some space (hw->sta_data_size)
477 * in the structure for use by driver. This structure is places in that
480 struct iwl_station_priv {
481 struct iwl_station_priv_common common;
482 struct iwl_lq_sta lq_sta;
483 atomic_t pending_frames;
490 * struct iwl_vif_priv - driver's private per-interface information
492 * When mac80211 allocates a virtual interface, it can allocate
493 * space for us to put data into.
495 struct iwl_vif_priv {
496 struct iwl_rxon_context *ctx;
497 u8 ibss_bssid_sta_id;
500 /* one for each uCode image (inst/data, boot/init/runtime) */
502 void *v_addr; /* access by driver */
503 dma_addr_t p_addr; /* access by card's busmaster DMA */
508 struct fw_desc code, data;
511 /* v1/v2 uCode file layout */
512 struct iwl_ucode_header {
513 __le32 ver; /* major/minor/API/serial */
516 __le32 inst_size; /* bytes of runtime code */
517 __le32 data_size; /* bytes of runtime data */
518 __le32 init_size; /* bytes of init code */
519 __le32 init_data_size; /* bytes of init data */
520 __le32 boot_size; /* bytes of bootstrap code */
521 u8 data[0]; /* in same order as sizes */
524 __le32 build; /* build number */
525 __le32 inst_size; /* bytes of runtime code */
526 __le32 data_size; /* bytes of runtime data */
527 __le32 init_size; /* bytes of init code */
528 __le32 init_data_size; /* bytes of init data */
529 __le32 boot_size; /* bytes of bootstrap code */
530 u8 data[0]; /* in same order as sizes */
536 * new TLV uCode file layout
538 * The new TLV file format contains TLVs, that each specify
539 * some piece of data. To facilitate "groups", for example
540 * different instruction image with different capabilities,
541 * bundled with the same init image, an alternative mechanism
543 * When the alternative field is 0, that means that the item
544 * is always valid. When it is non-zero, then it is only
545 * valid in conjunction with items of the same alternative,
546 * in which case the driver (user) selects one alternative
550 enum iwl_ucode_tlv_type {
551 IWL_UCODE_TLV_INVALID = 0, /* unused */
552 IWL_UCODE_TLV_INST = 1,
553 IWL_UCODE_TLV_DATA = 2,
554 IWL_UCODE_TLV_INIT = 3,
555 IWL_UCODE_TLV_INIT_DATA = 4,
556 IWL_UCODE_TLV_BOOT = 5,
557 IWL_UCODE_TLV_PROBE_MAX_LEN = 6, /* a u32 value */
558 IWL_UCODE_TLV_PAN = 7,
559 IWL_UCODE_TLV_RUNT_EVTLOG_PTR = 8,
560 IWL_UCODE_TLV_RUNT_EVTLOG_SIZE = 9,
561 IWL_UCODE_TLV_RUNT_ERRLOG_PTR = 10,
562 IWL_UCODE_TLV_INIT_EVTLOG_PTR = 11,
563 IWL_UCODE_TLV_INIT_EVTLOG_SIZE = 12,
564 IWL_UCODE_TLV_INIT_ERRLOG_PTR = 13,
565 IWL_UCODE_TLV_ENHANCE_SENS_TBL = 14,
566 IWL_UCODE_TLV_PHY_CALIBRATION_SIZE = 15,
567 IWL_UCODE_TLV_WOWLAN_INST = 16,
568 IWL_UCODE_TLV_WOWLAN_DATA = 17,
569 IWL_UCODE_TLV_FLAGS = 18,
573 * enum iwl_ucode_tlv_flag - ucode API flags
574 * @IWL_UCODE_TLV_FLAGS_PAN: This is PAN capable microcode; this previously
575 * was a separate TLV but moved here to save space.
576 * @IWL_UCODE_TLV_FLAGS_NEWSCAN: new uCode scan behaviour on hidden SSID,
577 * treats good CRC threshold as a boolean
578 * @IWL_UCODE_TLV_FLAGS_MFP: This uCode image supports MFP (802.11w).
579 * @IWL_UCODE_TLV_FLAGS_P2P: This uCode image supports P2P.
581 enum iwl_ucode_tlv_flag {
582 IWL_UCODE_TLV_FLAGS_PAN = BIT(0),
583 IWL_UCODE_TLV_FLAGS_NEWSCAN = BIT(1),
584 IWL_UCODE_TLV_FLAGS_MFP = BIT(2),
585 IWL_UCODE_TLV_FLAGS_P2P = BIT(3),
588 struct iwl_ucode_tlv {
589 __le16 type; /* see above */
590 __le16 alternative; /* see comment */
591 __le32 length; /* not including type/length fields */
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 iwl_sensitivity_ranges {
626 u16 auto_corr_min_ofdm;
627 u16 auto_corr_min_ofdm_mrc;
628 u16 auto_corr_min_ofdm_x1;
629 u16 auto_corr_min_ofdm_mrc_x1;
631 u16 auto_corr_max_ofdm;
632 u16 auto_corr_max_ofdm_mrc;
633 u16 auto_corr_max_ofdm_x1;
634 u16 auto_corr_max_ofdm_mrc_x1;
636 u16 auto_corr_max_cck;
637 u16 auto_corr_max_cck_mrc;
638 u16 auto_corr_min_cck;
639 u16 auto_corr_min_cck_mrc;
641 u16 barker_corr_th_min;
642 u16 barker_corr_th_min_mrc;
647 #define KELVIN_TO_CELSIUS(x) ((x)-273)
648 #define CELSIUS_TO_KELVIN(x) ((x)+273)
651 /******************************************************************************
653 * Functions implemented in core module which are forward declared here
654 * for use by iwl-[4-5].c
656 * NOTE: The implementation of these functions are not hardware specific
657 * which is why they are in the core module files.
659 * Naming convention --
660 * iwl_ <-- Is part of iwlwifi
661 * iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
663 ****************************************************************************/
664 extern void iwl_update_chain_flags(struct iwl_priv *priv);
665 extern const u8 iwl_bcast_addr[ETH_ALEN];
666 extern int iwl_queue_space(const struct iwl_queue *q);
667 static inline int iwl_queue_used(const struct iwl_queue *q, int i)
669 return q->write_ptr >= q->read_ptr ?
670 (i >= q->read_ptr && i < q->write_ptr) :
671 !(i < q->read_ptr && i >= q->write_ptr);
675 static inline u8 get_cmd_index(struct iwl_queue *q, u32 index)
677 return index & (q->n_window - 1);
687 #define IWL_OPERATION_MODE_AUTO 0
688 #define IWL_OPERATION_MODE_HT_ONLY 1
689 #define IWL_OPERATION_MODE_MIXED 2
690 #define IWL_OPERATION_MODE_20MHZ 3
692 #define IWL_TX_CRC_SIZE 4
693 #define IWL_TX_DELIMITER_SIZE 4
695 #define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
697 /* Sensitivity and chain noise calibration */
698 #define INITIALIZATION_VALUE 0xFFFF
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 iwlagn_false_alarm_state {
735 IWL_FA_GOOD_RANGE = 2,
738 enum iwlagn_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,
748 * defines the order in which results of initial calibrations
749 * should be sent to the runtime uCode
756 IWL_CALIB_TX_IQ_PERD,
758 IWL_CALIB_TEMP_OFFSET,
762 /* Opaque calibration results */
763 struct iwl_calib_result {
768 /* Sensitivity calib data */
769 struct iwl_sensitivity_data {
771 u32 auto_corr_ofdm_mrc;
772 u32 auto_corr_ofdm_x1;
773 u32 auto_corr_ofdm_mrc_x1;
775 u32 auto_corr_cck_mrc;
777 u32 last_bad_plcp_cnt_ofdm;
778 u32 last_fa_cnt_ofdm;
779 u32 last_bad_plcp_cnt_cck;
785 u8 nrg_silence_rssi[NRG_NUM_PREV_STAT_L];
790 s32 nrg_auto_corr_silence_diff;
791 u32 num_in_cck_no_fa;
794 u16 barker_corr_th_min;
795 u16 barker_corr_th_min_mrc;
799 /* Chain noise (differential Rx gain) calib data */
800 struct iwl_chain_noise_data {
809 u8 disconn_array[NUM_RX_CHAINS];
810 u8 delta_gain_code[NUM_RX_CHAINS];
815 #define EEPROM_SEM_TIMEOUT 10 /* milliseconds */
816 #define EEPROM_SEM_RETRY_LIMIT 1000 /* number of attempts (not time) */
818 #define IWL_TRAFFIC_ENTRIES (256)
819 #define IWL_TRAFFIC_ENTRY_SIZE (64)
822 MEASUREMENT_READY = (1 << 0),
823 MEASUREMENT_ACTIVE = (1 << 1),
827 NVM_DEVICE_TYPE_EEPROM = 0,
832 * Two types of OTP memory access modes
833 * IWL_OTP_ACCESS_ABSOLUTE - absolute address mode,
834 * based on physical memory addressing
835 * IWL_OTP_ACCESS_RELATIVE - relative address mode,
836 * based on logical memory addressing
838 enum iwl_access_mode {
839 IWL_OTP_ACCESS_ABSOLUTE,
840 IWL_OTP_ACCESS_RELATIVE,
844 * enum iwl_pa_type - Power Amplifier type
845 * @IWL_PA_SYSTEM: based on uCode configuration
846 * @IWL_PA_INTERNAL: use Internal only
853 /* interrupt statistics */
854 struct isr_statistics {
864 u32 rx_handlers[REPLY_MAX];
869 /* reply_tx_statistics (for _agn devices) */
870 struct reply_tx_error_statistics {
876 u32 int_crossed_retry;
892 u32 sta_color_mismatch;
896 /* reply_agg_tx_statistics (for _agn devices) */
897 struct reply_agg_tx_error_statistics {
904 u32 last_sent_bt_kill;
913 /* management statistics */
914 enum iwl_mgmt_stats {
915 MANAGEMENT_ASSOC_REQ = 0,
916 MANAGEMENT_ASSOC_RESP,
917 MANAGEMENT_REASSOC_REQ,
918 MANAGEMENT_REASSOC_RESP,
919 MANAGEMENT_PROBE_REQ,
920 MANAGEMENT_PROBE_RESP,
929 /* control statistics */
930 enum iwl_ctrl_stats {
931 CONTROL_BACK_REQ = 0,
942 struct traffic_stats {
943 #ifdef CONFIG_IWLWIFI_DEBUGFS
944 u32 mgmt[MANAGEMENT_MAX];
945 u32 ctrl[CONTROL_MAX];
952 * schedule the timer to wake up every UCODE_TRACE_PERIOD milliseconds
953 * to perform continuous uCode event logging operation if enabled
955 #define UCODE_TRACE_PERIOD (100)
958 * iwl_event_log: current uCode event log position
960 * @ucode_trace: enable/disable ucode continuous trace timer
961 * @num_wraps: how many times the event buffer wraps
962 * @next_entry: the entry just before the next one that uCode would fill
963 * @non_wraps_count: counter for no wrap detected when dump ucode events
964 * @wraps_once_count: counter for wrap once detected when dump ucode events
965 * @wraps_more_count: counter for wrap more than once detected
966 * when dump ucode events
968 struct iwl_event_log {
973 int wraps_once_count;
974 int wraps_more_count;
978 * host interrupt timeout value
979 * used with setting interrupt coalescing timer
980 * the CSR_INT_COALESCING is an 8 bit register in 32-usec unit
982 * default interrupt coalescing timer is 64 x 32 = 2048 usecs
983 * default interrupt coalescing calibration timer is 16 x 32 = 512 usecs
985 #define IWL_HOST_INT_TIMEOUT_MAX (0xFF)
986 #define IWL_HOST_INT_TIMEOUT_DEF (0x40)
987 #define IWL_HOST_INT_TIMEOUT_MIN (0x0)
988 #define IWL_HOST_INT_CALIB_TIMEOUT_MAX (0xFF)
989 #define IWL_HOST_INT_CALIB_TIMEOUT_DEF (0x10)
990 #define IWL_HOST_INT_CALIB_TIMEOUT_MIN (0x0)
993 * This is the threshold value of plcp error rate per 100mSecs. It is
994 * used to set and check for the validity of plcp_delta.
996 #define IWL_MAX_PLCP_ERR_THRESHOLD_MIN (1)
997 #define IWL_MAX_PLCP_ERR_THRESHOLD_DEF (50)
998 #define IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF (100)
999 #define IWL_MAX_PLCP_ERR_EXT_LONG_THRESHOLD_DEF (200)
1000 #define IWL_MAX_PLCP_ERR_THRESHOLD_MAX (255)
1001 #define IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE (0)
1003 #define IWL_DELAY_NEXT_FORCE_RF_RESET (HZ*3)
1004 #define IWL_DELAY_NEXT_FORCE_FW_RELOAD (HZ*5)
1006 /* TX queue watchdog timeouts in mSecs */
1007 #define IWL_DEF_WD_TIMEOUT (2000)
1008 #define IWL_LONG_WD_TIMEOUT (10000)
1009 #define IWL_MAX_WD_TIMEOUT (120000)
1011 /* BT Antenna Coupling Threshold (dB) */
1012 #define IWL_BT_ANTENNA_COUPLING_THRESHOLD (35)
1014 /* Firmware reload counter and Timestamp */
1015 #define IWL_MIN_RELOAD_DURATION 1000 /* 1000 ms */
1016 #define IWL_MAX_CONTINUE_RELOAD_CNT 4
1022 IWL_MAX_FORCE_RESET,
1025 struct iwl_force_reset {
1026 int reset_request_count;
1027 int reset_success_count;
1028 int reset_reject_count;
1029 unsigned long reset_duration;
1030 unsigned long last_force_reset_jiffies;
1033 /* extend beacon time format bit shifting */
1036 * bits 31:22 - extended
1037 * bits 21:0 - interval
1039 #define IWLAGN_EXT_BEACON_TIME_POS 22
1042 * struct iwl_notification_wait - notification wait entry
1043 * @list: list head for global list
1044 * @fn: function called with the notification
1047 * This structure is not used directly, to wait for a
1048 * notification declare it on the stack, and call
1049 * iwlagn_init_notification_wait() with appropriate
1050 * parameters. Then do whatever will cause the ucode
1051 * to notify the driver, and to wait for that then
1052 * call iwlagn_wait_notification().
1054 * Each notification is one-shot. If at some point we
1055 * need to support multi-shot notifications (which
1056 * can't be allocated on the stack) we need to modify
1057 * the code for them.
1059 struct iwl_notification_wait {
1060 struct list_head list;
1062 void (*fn)(struct iwl_priv *priv, struct iwl_rx_packet *pkt,
1067 bool triggered, aborted;
1070 enum iwl_rxon_context_id {
1077 struct iwl_rxon_context {
1078 struct ieee80211_vif *vif;
1080 const u8 *ac_to_fifo;
1081 const u8 *ac_to_queue;
1085 * We could use the vif to indicate active, but we
1086 * also need it to be active during disabling when
1087 * we already removed the vif for type setting.
1089 bool always_active, is_active;
1091 bool ht_need_multiple_chains;
1093 enum iwl_rxon_context_id ctxid;
1095 u32 interface_modes, exclusive_interface_modes;
1096 u8 unused_devtype, ap_devtype, ibss_devtype, station_devtype;
1099 * We declare this const so it can only be
1100 * changed via explicit cast within the
1101 * routines that actually update the physical
1104 const struct iwl_rxon_cmd active;
1105 struct iwl_rxon_cmd staging;
1107 struct iwl_rxon_time_cmd timing;
1109 struct iwl_qos_info qos_data;
1111 u8 bcast_sta_id, ap_sta_id;
1113 u8 rxon_cmd, rxon_assoc_cmd, rxon_timing_cmd;
1117 struct iwl_wep_key wep_keys[WEP_KEYS_MAX];
1118 u8 key_mapping_keys;
1120 __le32 station_flags;
1125 bool non_gf_sta_present;
1127 bool enabled, is_40mhz;
1128 u8 extension_chan_offset;
1131 bool last_tx_rejected;
1134 enum iwl_scan_type {
1136 IWL_SCAN_RADIO_RESET,
1140 enum iwlagn_ucode_type {
1147 #ifdef CONFIG_IWLWIFI_DEVICE_SVTOOL
1148 struct iwl_testmode_trace {
1154 dma_addr_t dma_addr;
1159 /* uCode ownership */
1160 #define IWL_OWNERSHIP_DRIVER 0
1161 #define IWL_OWNERSHIP_TM 1
1165 /*data shared among all the driver's layers */
1166 struct iwl_shared _shrd;
1167 struct iwl_shared *shrd;
1169 /* ieee device used by generic ieee processing code */
1170 struct ieee80211_hw *hw;
1171 struct ieee80211_channel *ieee_channels;
1172 struct ieee80211_rate *ieee_rates;
1173 struct iwl_cfg *cfg;
1175 enum ieee80211_band band;
1177 void (*pre_rx_handler)(struct iwl_priv *priv,
1178 struct iwl_rx_mem_buffer *rxb);
1179 void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv,
1180 struct iwl_rx_mem_buffer *rxb);
1182 struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
1184 /* spectrum measurement report caching */
1185 struct iwl_spectrum_notification measure_report;
1186 u8 measurement_status;
1188 /* ucode beacon time */
1189 u32 ucode_beacon_time;
1190 int missed_beacon_threshold;
1192 /* track IBSS manager (last beacon) status */
1195 /* jiffies when last recovery from statistics was performed */
1196 unsigned long rx_statistics_jiffies;
1199 struct iwl_force_reset force_reset[IWL_MAX_FORCE_RESET];
1201 /* firmware reload counter and timestamp */
1202 unsigned long reload_jiffies;
1205 /* we allocate array of iwl_channel_info for NIC's valid channels.
1206 * Access via channel # using indirect index array */
1207 struct iwl_channel_info *channel_info; /* channel info array */
1208 u8 channel_count; /* # of channels */
1210 /* thermal calibration */
1211 s32 temperature; /* degrees Kelvin */
1212 s32 last_temperature;
1214 /* init calibration results */
1215 struct iwl_calib_result calib_results[IWL_CALIB_MAX];
1217 /* Scan related variables */
1218 unsigned long scan_start;
1219 unsigned long scan_start_tsf;
1221 enum ieee80211_band scan_band;
1222 struct cfg80211_scan_request *scan_request;
1223 struct ieee80211_vif *scan_vif;
1224 enum iwl_scan_type scan_type;
1225 u8 scan_tx_ant[IEEE80211_NUM_BANDS];
1229 spinlock_t lock; /* protect general shared data */
1230 spinlock_t hcmd_lock; /* protect hcmd */
1231 spinlock_t reg_lock; /* protect hw register access */
1234 struct iwl_bus *bus; /* bus specific data */
1235 struct iwl_trans trans;
1237 /* microcode/device supports multiple contexts */
1240 /* max number of station keys */
1243 bool new_scan_threshold_behaviour;
1245 /* EEPROM MAC addresses */
1246 struct mac_address addresses[2];
1248 /* uCode images, save to reload in case of failure */
1249 int fw_index; /* firmware we're trying to load */
1250 u32 ucode_ver; /* version of ucode, copy of
1253 /* uCode owner: default: IWL_OWNERSHIP_DRIVER */
1256 struct fw_img ucode_rt;
1257 struct fw_img ucode_init;
1258 struct fw_img ucode_wowlan;
1260 enum iwlagn_ucode_type ucode_type;
1261 u8 ucode_write_complete; /* the image write is complete */
1262 char firmware_name[25];
1264 struct iwl_rxon_context contexts[NUM_IWL_RXON_CTX];
1266 __le16 switch_channel;
1269 u32 error_event_table;
1270 u32 log_event_table;
1276 struct iwl_sensitivity_data sensitivity_data;
1277 struct iwl_chain_noise_data chain_noise_data;
1278 bool enhance_sensitivity_table;
1279 __le16 sensitivity_tbl[HD_TABLE_SIZE];
1280 __le16 enhance_sensitivity_tbl[ENHANCE_HD_TABLE_ENTRIES];
1282 struct iwl_ht_config current_ht_config;
1284 /* Rate scaling data */
1287 wait_queue_head_t wait_command_queue;
1289 int activity_timer_active;
1291 /* Rx and Tx DMA processing queues */
1292 struct iwl_rx_queue rxq;
1293 struct iwl_tx_queue *txq;
1294 unsigned long txq_ctx_active_msk;
1295 struct iwl_dma_ptr kw; /* keep warm address */
1296 struct iwl_dma_ptr scd_bc_tbls;
1298 u32 scd_base_addr; /* scheduler sram base address */
1300 /* counts mgmt, ctl, and data packets */
1301 struct traffic_stats tx_stats;
1302 struct traffic_stats rx_stats;
1304 /* counts interrupts */
1305 struct isr_statistics isr_stats;
1307 struct iwl_power_mgr power_data;
1308 struct iwl_tt_mgmt thermal_throttle;
1310 /* station table variables */
1312 /* Note: if lock and sta_lock are needed, lock must be acquired first */
1313 spinlock_t sta_lock;
1315 struct iwl_station_entry stations[IWLAGN_STATION_COUNT];
1316 unsigned long ucode_key_table;
1318 /* queue refcounts */
1319 #define IWL_MAX_HW_QUEUES 32
1320 unsigned long queue_stopped[BITS_TO_LONGS(IWL_MAX_HW_QUEUES)];
1322 atomic_t queue_stop_count[4];
1324 /* Indication if ieee80211_ops->open has been called */
1327 u8 mac80211_registered;
1331 /* eeprom -- this is in the card's little endian byte order */
1333 int nvm_device_type;
1334 struct iwl_eeprom_calib_info *calib_info;
1336 enum nl80211_iftype iw_mode;
1338 /* Last Rx'd beacon timestamp */
1343 struct statistics_general_common common;
1344 struct statistics_rx_non_phy rx_non_phy;
1345 struct statistics_rx_phy rx_ofdm;
1346 struct statistics_rx_ht_phy rx_ofdm_ht;
1347 struct statistics_rx_phy rx_cck;
1348 struct statistics_tx tx;
1349 #ifdef CONFIG_IWLWIFI_DEBUGFS
1350 struct statistics_bt_activity bt_activity;
1351 __le32 num_bt_kills, accum_num_bt_kills;
1354 #ifdef CONFIG_IWLWIFI_DEBUGFS
1356 struct statistics_general_common common;
1357 struct statistics_rx_non_phy rx_non_phy;
1358 struct statistics_rx_phy rx_ofdm;
1359 struct statistics_rx_ht_phy rx_ofdm_ht;
1360 struct statistics_rx_phy rx_cck;
1361 struct statistics_tx tx;
1362 struct statistics_bt_activity bt_activity;
1363 } accum_stats, delta_stats, max_delta_stats;
1369 dma_addr_t ict_tbl_dma;
1370 dma_addr_t aligned_ict_tbl_dma;
1375 * reporting the number of tids has AGG on. 0 means
1380 struct iwl_rx_phy_res last_phy_res;
1381 bool last_phy_res_valid;
1383 struct completion firmware_loading_complete;
1385 u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr;
1386 u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr;
1389 * chain noise reset and gain commands are the
1390 * two extra calibration commands follows the standard
1391 * phy calibration commands
1393 u8 phy_calib_chain_noise_reset_cmd;
1394 u8 phy_calib_chain_noise_gain_cmd;
1396 /* counts reply_tx error */
1397 struct reply_tx_error_statistics reply_tx_stats;
1398 struct reply_agg_tx_error_statistics reply_agg_tx_stats;
1399 /* notification wait support */
1400 struct list_head notif_waits;
1401 spinlock_t notif_wait_lock;
1402 wait_queue_head_t notif_waitq;
1404 /* remain-on-channel offload support */
1405 struct ieee80211_channel *hw_roc_channel;
1406 struct delayed_work hw_roc_disable_work;
1407 enum nl80211_channel_type hw_roc_chantype;
1408 int hw_roc_duration;
1414 u8 bt_traffic_load, last_bt_traffic_load;
1415 bool bt_ch_announce;
1416 bool bt_full_concurrent;
1417 bool bt_ant_couple_ok;
1418 __le32 kill_ack_mask;
1419 __le32 kill_cts_mask;
1423 u16 dynamic_frag_thresh;
1424 u8 bt_ci_compliance;
1425 struct work_struct bt_traffic_change_work;
1426 bool bt_enable_pspoll;
1427 struct iwl_rxon_context *cur_rssi_ctx;
1432 struct work_struct restart;
1433 struct work_struct scan_completed;
1434 struct work_struct rx_replenish;
1435 struct work_struct abort_scan;
1437 struct work_struct beacon_update;
1438 struct iwl_rxon_context *beacon_ctx;
1439 struct sk_buff *beacon_skb;
1442 struct work_struct tt_work;
1443 struct work_struct ct_enter;
1444 struct work_struct ct_exit;
1445 struct work_struct start_internal_scan;
1446 struct work_struct tx_flush;
1447 struct work_struct bt_full_concurrency;
1448 struct work_struct bt_runtime_config;
1450 struct tasklet_struct irq_tasklet;
1452 struct delayed_work scan_check;
1455 s8 tx_power_user_lmt;
1456 s8 tx_power_device_lmt;
1457 s8 tx_power_lmt_in_half_dbm; /* max tx power in half-dBm format */
1460 #ifdef CONFIG_IWLWIFI_DEBUGFS
1466 struct dentry *debugfs_dir;
1467 u32 dbgfs_sram_offset, dbgfs_sram_len;
1470 #endif /* CONFIG_IWLWIFI_DEBUGFS */
1472 struct work_struct txpower_work;
1473 u32 disable_sens_cal;
1474 u32 disable_chain_noise_cal;
1475 struct work_struct run_time_calib_work;
1476 struct timer_list statistics_periodic;
1477 struct timer_list ucode_trace;
1478 struct timer_list watchdog;
1480 struct iwl_event_log event_log;
1482 struct led_classdev led;
1483 unsigned long blink_on, blink_off;
1484 bool led_registered;
1485 #ifdef CONFIG_IWLWIFI_DEVICE_SVTOOL
1486 struct iwl_testmode_trace testmode_trace;
1490 /* WoWLAN GTK rekey data */
1491 u8 kck[NL80211_KCK_LEN], kek[NL80211_KEK_LEN];
1493 __le16 last_seq_ctl;
1494 bool have_rekey_data;
1497 static inline void iwl_txq_ctx_activate(struct iwl_priv *priv, int txq_id)
1499 set_bit(txq_id, &priv->txq_ctx_active_msk);
1502 static inline void iwl_txq_ctx_deactivate(struct iwl_priv *priv, int txq_id)
1504 clear_bit(txq_id, &priv->txq_ctx_active_msk);
1507 extern struct iwl_mod_params iwlagn_mod_params;
1509 static inline struct ieee80211_hdr *iwl_tx_queue_get_hdr(struct iwl_priv *priv,
1510 int txq_id, int idx)
1512 if (priv->txq[txq_id].txb[idx].skb)
1513 return (struct ieee80211_hdr *)priv->txq[txq_id].
1518 static inline struct iwl_rxon_context *
1519 iwl_rxon_ctx_from_vif(struct ieee80211_vif *vif)
1521 struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
1523 return vif_priv->ctx;
1526 #define for_each_context(priv, ctx) \
1527 for (ctx = &priv->contexts[IWL_RXON_CTX_BSS]; \
1528 ctx < &priv->contexts[NUM_IWL_RXON_CTX]; ctx++) \
1529 if (priv->valid_contexts & BIT(ctx->ctxid))
1531 static inline int iwl_is_associated_ctx(struct iwl_rxon_context *ctx)
1533 return (ctx->active.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
1536 static inline int iwl_is_associated(struct iwl_priv *priv,
1537 enum iwl_rxon_context_id ctxid)
1539 return iwl_is_associated_ctx(&priv->contexts[ctxid]);
1542 static inline int iwl_is_any_associated(struct iwl_priv *priv)
1544 struct iwl_rxon_context *ctx;
1545 for_each_context(priv, ctx)
1546 if (iwl_is_associated_ctx(ctx))
1551 static inline int is_channel_valid(const struct iwl_channel_info *ch_info)
1553 if (ch_info == NULL)
1555 return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
1558 static inline int is_channel_radar(const struct iwl_channel_info *ch_info)
1560 return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
1563 static inline u8 is_channel_a_band(const struct iwl_channel_info *ch_info)
1565 return ch_info->band == IEEE80211_BAND_5GHZ;
1568 static inline u8 is_channel_bg_band(const struct iwl_channel_info *ch_info)
1570 return ch_info->band == IEEE80211_BAND_2GHZ;
1573 static inline int is_channel_passive(const struct iwl_channel_info *ch)
1575 return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
1578 static inline int is_channel_ibss(const struct iwl_channel_info *ch)
1580 return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
1583 static inline void __iwl_free_pages(struct iwl_priv *priv, struct page *page)
1585 __free_pages(page, hw_params(priv).rx_page_order);
1588 static inline void iwl_free_pages(struct iwl_priv *priv, unsigned long page)
1590 free_pages(page, hw_params(priv).rx_page_order);
1592 #endif /* __iwl_dev_h__ */