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"
47 #include "iwl-power.h"
48 #include "iwl-agn-rs.h"
50 /* configuration for the iwl4965 */
51 extern struct iwl_cfg iwl4965_agn_cfg;
52 extern struct iwl_cfg iwl5300_agn_cfg;
53 extern struct iwl_cfg iwl5100_agn_cfg;
54 extern struct iwl_cfg iwl5350_agn_cfg;
55 extern struct iwl_cfg iwl5100_bgn_cfg;
56 extern struct iwl_cfg iwl5100_abg_cfg;
57 extern struct iwl_cfg iwl5150_agn_cfg;
58 extern struct iwl_cfg iwl5150_abg_cfg;
59 extern struct iwl_cfg iwl6000i_2agn_cfg;
60 extern struct iwl_cfg iwl6000i_g2_2agn_cfg;
61 extern struct iwl_cfg iwl6000i_2abg_cfg;
62 extern struct iwl_cfg iwl6000i_2bg_cfg;
63 extern struct iwl_cfg iwl6000_3agn_cfg;
64 extern struct iwl_cfg iwl6050_2agn_cfg;
65 extern struct iwl_cfg iwl6050_2abg_cfg;
66 extern struct iwl_cfg iwl1000_bgn_cfg;
67 extern struct iwl_cfg iwl1000_bg_cfg;
71 /* CT-KILL constants */
72 #define CT_KILL_THRESHOLD_LEGACY 110 /* in Celsius */
73 #define CT_KILL_THRESHOLD 114 /* in Celsius */
74 #define CT_KILL_EXIT_THRESHOLD 95 /* in Celsius */
76 /* Default noise level to report when noise measurement is not available.
77 * This may be because we're:
78 * 1) Not associated (4965, no beacon statistics being sent to driver)
79 * 2) Scanning (noise measurement does not apply to associated channel)
80 * 3) Receiving CCK (3945 delivers noise info only for OFDM frames)
81 * Use default noise value of -127 ... this is below the range of measurable
82 * Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
83 * Also, -127 works better than 0 when averaging frames with/without
84 * noise info (e.g. averaging might be done in app); measured dBm values are
85 * always negative ... using a negative value as the default keeps all
86 * averages within an s8's (used in some apps) range of negative values. */
87 #define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
90 * RTS threshold here is total size [2347] minus 4 FCS bytes
92 * a value of 0 means RTS on all data/management packets
93 * a value > max MSDU size means no RTS
94 * else RTS for data/management frames where MPDU is larger
97 #define DEFAULT_RTS_THRESHOLD 2347U
98 #define MIN_RTS_THRESHOLD 0U
99 #define MAX_RTS_THRESHOLD 2347U
100 #define MAX_MSDU_SIZE 2304U
101 #define MAX_MPDU_SIZE 2346U
102 #define DEFAULT_BEACON_INTERVAL 100U
103 #define DEFAULT_SHORT_RETRY_LIMIT 7U
104 #define DEFAULT_LONG_RETRY_LIMIT 4U
106 struct iwl_rx_mem_buffer {
109 struct list_head list;
112 #define rxb_addr(r) page_address(r->page)
115 struct iwl_device_cmd;
117 struct iwl_cmd_meta {
118 /* only for SYNC commands, iff the reply skb is wanted */
119 struct iwl_host_cmd *source;
121 * only for ASYNC commands
122 * (which is somewhat stupid -- look at iwl-sta.c for instance
123 * which duplicates a bunch of code because the callback isn't
124 * invoked for SYNC commands, if it were and its result passed
125 * through it would be simpler...)
127 void (*callback)(struct iwl_priv *priv,
128 struct iwl_device_cmd *cmd,
129 struct iwl_rx_packet *pkt);
131 /* The CMD_SIZE_HUGE flag bit indicates that the command
132 * structure is stored at the end of the shared queue memory. */
135 DECLARE_PCI_UNMAP_ADDR(mapping)
136 DECLARE_PCI_UNMAP_LEN(len)
140 * Generic queue structure
142 * Contains common data for Rx and Tx queues
145 int n_bd; /* number of BDs in this queue */
146 int write_ptr; /* 1-st empty entry (index) host_w*/
147 int read_ptr; /* last used entry (index) host_r*/
148 /* use for monitoring and recovering the stuck queue */
149 int last_read_ptr; /* storing the last read_ptr */
150 /* number of time read_ptr and last_read_ptr are the same */
151 u8 repeat_same_read_ptr;
152 dma_addr_t dma_addr; /* physical addr for BD's */
153 int n_window; /* safe queue window */
155 int low_mark; /* low watermark, resume queue if free
156 * space more than this */
157 int high_mark; /* high watermark, stop queue if free
158 * space less than this */
159 } __attribute__ ((packed));
161 /* One for each TFD */
163 struct sk_buff *skb[IWL_NUM_OF_TBS - 1];
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 * @need_update: indicates need to update read/write index
175 * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
177 * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
178 * descriptors) and required locking structures.
180 #define TFD_TX_CMD_SLOTS 256
181 #define TFD_CMD_SLOTS 32
183 struct iwl_tx_queue {
186 struct iwl_device_cmd **cmd;
187 struct iwl_cmd_meta *meta;
188 struct iwl_tx_info *txb;
195 #define IWL_NUM_SCAN_RATES (2)
197 struct iwl4965_channel_tgd_info {
202 struct iwl4965_channel_tgh_info {
206 #define IWL4965_MAX_RATE (33)
208 struct iwl3945_clip_group {
209 /* maximum power level to prevent clipping for each rate, derived by
210 * us from this band's saturation power in EEPROM */
211 const s8 clip_powers[IWL_MAX_RATES];
214 /* current Tx power values to use, one for each rate for each channel.
215 * requested power is limited by:
216 * -- regulatory EEPROM limits for this channel
217 * -- hardware capabilities (clip-powers)
218 * -- spectrum management
219 * -- user preference (e.g. iwconfig)
220 * when requested power is set, base power index must also be set. */
221 struct iwl3945_channel_power_info {
222 struct iwl3945_tx_power tpc; /* actual radio and DSP gain settings */
223 s8 power_table_index; /* actual (compenst'd) index into gain table */
224 s8 base_power_index; /* gain index for power at factory temp. */
225 s8 requested_power; /* power (dBm) requested for this chnl/rate */
228 /* current scan Tx power values to use, one for each scan rate for each
230 struct iwl3945_scan_power_info {
231 struct iwl3945_tx_power tpc; /* actual radio and DSP gain settings */
232 s8 power_table_index; /* actual (compenst'd) index into gain table */
233 s8 requested_power; /* scan pwr (dBm) requested for chnl/rate */
237 * One for each channel, holds all channel setup data
238 * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
241 struct iwl_channel_info {
242 struct iwl4965_channel_tgd_info tgd;
243 struct iwl4965_channel_tgh_info tgh;
244 struct iwl_eeprom_channel eeprom; /* EEPROM regulatory limit */
245 struct iwl_eeprom_channel ht40_eeprom; /* EEPROM regulatory limit for
248 u8 channel; /* channel number */
249 u8 flags; /* flags copied from EEPROM */
250 s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
251 s8 curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) limit */
252 s8 min_power; /* always 0 */
253 s8 scan_power; /* (dBm) regul. eeprom, direct scans, any rate */
255 u8 group_index; /* 0-4, maps channel to group1/2/3/4/5 */
256 u8 band_index; /* 0-4, maps channel to band1/2/3/4/5 */
257 enum ieee80211_band band;
259 /* HT40 channel info */
260 s8 ht40_max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
261 u8 ht40_flags; /* flags copied from EEPROM */
262 u8 ht40_extension_channel; /* HT_IE_EXT_CHANNEL_* */
264 /* Radio/DSP gain settings for each "normal" data Tx rate.
265 * These include, in addition to RF and DSP gain, a few fields for
266 * remembering/modifying gain settings (indexes). */
267 struct iwl3945_channel_power_info power_info[IWL4965_MAX_RATE];
269 /* Radio/DSP gain settings for each scan rate, for directed scans. */
270 struct iwl3945_scan_power_info scan_pwr_info[IWL_NUM_SCAN_RATES];
273 #define IWL_TX_FIFO_BK 0
274 #define IWL_TX_FIFO_BE 1
275 #define IWL_TX_FIFO_VI 2
276 #define IWL_TX_FIFO_VO 3
277 #define IWL_TX_FIFO_UNUSED -1
279 /* Minimum number of queues. MAX_NUM is defined in hw specific files.
280 * Set the minimum to accommodate the 4 standard TX queues, 1 command
281 * queue, 2 (unused) HCCA queues, and 4 HT queues (one for each AC) */
282 #define IWL_MIN_NUM_QUEUES 10
285 * Queue #4 is the command queue for 3945/4965/5x00/1000/6x00,
286 * the driver maps it into the appropriate device FIFO for the
289 #define IWL_CMD_QUEUE_NUM 4
291 /* Power management (not Tx power) structures */
298 #define IEEE80211_DATA_LEN 2304
299 #define IEEE80211_4ADDR_LEN 30
300 #define IEEE80211_HLEN (IEEE80211_4ADDR_LEN)
301 #define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
305 struct ieee80211_hdr frame;
306 struct iwl_tx_beacon_cmd beacon;
307 u8 raw[IEEE80211_FRAME_LEN];
310 struct list_head list;
313 #define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
314 #define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
315 #define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
321 CMD_SIZE_HUGE = (1 << 0),
322 CMD_ASYNC = (1 << 1),
323 CMD_WANT_SKB = (1 << 2),
326 #define DEF_CMD_PAYLOAD_SIZE 320
329 * struct iwl_device_cmd
331 * For allocation of the command and tx queues, this establishes the overall
332 * size of the largest command we send to uCode, except for a scan command
333 * (which is relatively huge; space is allocated separately).
335 struct iwl_device_cmd {
336 struct iwl_cmd_header hdr; /* uCode API */
342 struct iwl_tx_cmd tx;
343 struct iwl6000_channel_switch_cmd chswitch;
344 u8 payload[DEF_CMD_PAYLOAD_SIZE];
345 } __attribute__ ((packed)) cmd;
346 } __attribute__ ((packed));
348 #define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_device_cmd))
351 struct iwl_host_cmd {
353 unsigned long reply_page;
354 void (*callback)(struct iwl_priv *priv,
355 struct iwl_device_cmd *cmd,
356 struct iwl_rx_packet *pkt);
362 #define SUP_RATE_11A_MAX_NUM_CHANNELS 8
363 #define SUP_RATE_11B_MAX_NUM_CHANNELS 4
364 #define SUP_RATE_11G_MAX_NUM_CHANNELS 12
367 * struct iwl_rx_queue - Rx queue
368 * @bd: driver's pointer to buffer of receive buffer descriptors (rbd)
369 * @dma_addr: bus address of buffer of receive buffer descriptors (rbd)
370 * @read: Shared index to newest available Rx buffer
371 * @write: Shared index to oldest written Rx packet
372 * @free_count: Number of pre-allocated buffers in rx_free
373 * @rx_free: list of free SKBs for use
374 * @rx_used: List of Rx buffers with no SKB
375 * @need_update: flag to indicate we need to update read/write index
376 * @rb_stts: driver's pointer to receive buffer status
377 * @rb_stts_dma: bus address of receive buffer status
379 * NOTE: rx_free and rx_used are used as a FIFO for iwl_rx_mem_buffers
381 struct iwl_rx_queue {
384 struct iwl_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
385 struct iwl_rx_mem_buffer *queue[RX_QUEUE_SIZE];
390 struct list_head rx_free;
391 struct list_head rx_used;
393 struct iwl_rb_status *rb_stts;
394 dma_addr_t rb_stts_dma;
398 #define IWL_SUPPORTED_RATES_IE_LEN 8
400 #define MAX_TID_COUNT 9
402 #define IWL_INVALID_RATE 0xFF
403 #define IWL_INVALID_VALUE -1
406 * struct iwl_ht_agg -- aggregation status while waiting for block-ack
407 * @txq_id: Tx queue used for Tx attempt
408 * @frame_count: # frames attempted by Tx command
409 * @wait_for_ba: Expect block-ack before next Tx reply
410 * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window
411 * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window
412 * @bitmap1: High order, one bit for each frame pending ACK in Tx window
413 * @rate_n_flags: Rate at which Tx was attempted
415 * If REPLY_TX indicates that aggregation was attempted, driver must wait
416 * for block ack (REPLY_COMPRESSED_BA). This struct stores tx reply info
417 * until block ack arrives.
426 #define IWL_AGG_OFF 0
428 #define IWL_EMPTYING_HW_QUEUE_ADDBA 2
429 #define IWL_EMPTYING_HW_QUEUE_DELBA 3
434 struct iwl_tid_data {
437 struct iwl_ht_agg agg;
441 enum ieee80211_key_alg alg;
447 union iwl_ht_rate_supp {
455 #define CFG_HT_RX_AMPDU_FACTOR_DEF (0x3)
458 * Maximal MPDU density for TX aggregation
464 #define CFG_HT_MPDU_DENSITY_4USEC (0x5)
465 #define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_4USEC
467 struct iwl_ht_config {
468 /* self configuration data */
471 bool single_chain_sufficient;
472 enum ieee80211_smps_mode smps; /* current smps mode */
473 /* BSS related data */
474 u8 extension_chan_offset;
476 u8 non_GF_STA_present;
480 struct iwl_qos_info {
482 struct iwl_qosparam_cmd def_qos_parm;
486 * Structure should be accessed with sta_lock held. When station addition
487 * is in progress (IWL_STA_UCODE_INPROGRESS) it is possible to access only
488 * the commands (iwl_addsta_cmd and iwl_link_quality_cmd) without sta_lock
491 struct iwl_station_entry {
492 struct iwl_addsta_cmd sta;
493 struct iwl_tid_data tid[MAX_TID_COUNT];
495 struct iwl_hw_key keyinfo;
496 struct iwl_link_quality_cmd *lq;
500 * iwl_station_priv: Driver's private station information
502 * When mac80211 creates a station it reserves some space (hw->sta_data_size)
503 * in the structure for use by driver. This structure is places in that
506 struct iwl_station_priv {
507 struct iwl_lq_sta lq_sta;
508 atomic_t pending_frames;
513 /* one for each uCode image (inst/data, boot/init/runtime) */
515 void *v_addr; /* access by driver */
516 dma_addr_t p_addr; /* access by card's busmaster DMA */
520 /* uCode file layout */
521 struct iwl_ucode_header {
522 __le32 ver; /* major/minor/API/serial */
525 __le32 inst_size; /* bytes of runtime code */
526 __le32 data_size; /* bytes of runtime data */
527 __le32 init_size; /* bytes of init code */
528 __le32 init_data_size; /* bytes of init data */
529 __le32 boot_size; /* bytes of bootstrap code */
530 u8 data[0]; /* in same order as sizes */
533 __le32 build; /* build number */
534 __le32 inst_size; /* bytes of runtime code */
535 __le32 data_size; /* bytes of runtime data */
536 __le32 init_size; /* bytes of init code */
537 __le32 init_data_size; /* bytes of init data */
538 __le32 boot_size; /* bytes of bootstrap code */
539 u8 data[0]; /* in same order as sizes */
543 #define UCODE_HEADER_SIZE(ver) ((ver) == 1 ? 24 : 28)
545 struct iwl4965_ibss_seq {
549 unsigned long packet_time;
550 struct list_head list;
553 struct iwl_sensitivity_ranges {
560 u16 auto_corr_min_ofdm;
561 u16 auto_corr_min_ofdm_mrc;
562 u16 auto_corr_min_ofdm_x1;
563 u16 auto_corr_min_ofdm_mrc_x1;
565 u16 auto_corr_max_ofdm;
566 u16 auto_corr_max_ofdm_mrc;
567 u16 auto_corr_max_ofdm_x1;
568 u16 auto_corr_max_ofdm_mrc_x1;
570 u16 auto_corr_max_cck;
571 u16 auto_corr_max_cck_mrc;
572 u16 auto_corr_min_cck;
573 u16 auto_corr_min_cck_mrc;
575 u16 barker_corr_th_min;
576 u16 barker_corr_th_min_mrc;
581 #define KELVIN_TO_CELSIUS(x) ((x)-273)
582 #define CELSIUS_TO_KELVIN(x) ((x)+273)
586 * struct iwl_hw_params
587 * @max_txq_num: Max # Tx queues supported
588 * @dma_chnl_num: Number of Tx DMA/FIFO channels
589 * @scd_bc_tbls_size: size of scheduler byte count tables
590 * @tfd_size: TFD size
591 * @tx/rx_chains_num: Number of TX/RX chains
592 * @valid_tx/rx_ant: usable antennas
593 * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
594 * @max_rxq_log: Log-base-2 of max_rxq_size
595 * @rx_page_order: Rx buffer page order
596 * @rx_wrt_ptr_reg: FH{39}_RSCSR_CHNL0_WPTR
599 * @ht40_channel: is 40MHz width possible in band 2.4
600 * BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ)
601 * @sw_crypto: 0 for hw, 1 for sw
602 * @max_xxx_size: for ucode uses
603 * @ct_kill_threshold: temperature threshold
604 * @calib_init_cfg: setup initial calibrations for the hw
605 * @struct iwl_sensitivity_ranges: range of sensitivity values
607 struct iwl_hw_params {
610 u16 scd_bc_tbls_size;
623 u8 max_beacon_itrvl; /* in 1024 ms */
627 u32 ct_kill_threshold; /* value in hw-dependent units */
628 u32 ct_kill_exit_threshold; /* value in hw-dependent units */
629 /* for 1000, 6000 series and up */
631 const struct iwl_sensitivity_ranges *sens;
635 /******************************************************************************
637 * Functions implemented in core module which are forward declared here
638 * for use by iwl-[4-5].c
640 * NOTE: The implementation of these functions are not hardware specific
641 * which is why they are in the core module files.
643 * Naming convention --
644 * iwl_ <-- Is part of iwlwifi
645 * iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
646 * iwl4965_bg_ <-- Called from work queue context
647 * iwl4965_mac_ <-- mac80211 callback
649 ****************************************************************************/
650 extern void iwl_update_chain_flags(struct iwl_priv *priv);
651 extern int iwl_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src);
652 extern const u8 iwl_bcast_addr[ETH_ALEN];
653 extern int iwl_rxq_stop(struct iwl_priv *priv);
654 extern void iwl_txq_ctx_stop(struct iwl_priv *priv);
655 extern int iwl_queue_space(const struct iwl_queue *q);
656 static inline int iwl_queue_used(const struct iwl_queue *q, int i)
658 return q->write_ptr >= q->read_ptr ?
659 (i >= q->read_ptr && i < q->write_ptr) :
660 !(i < q->read_ptr && i >= q->write_ptr);
664 static inline u8 get_cmd_index(struct iwl_queue *q, u32 index, int is_huge)
667 * This is for init calibration result and scan command which
668 * required buffer > TFD_MAX_PAYLOAD_SIZE,
669 * the big buffer at end of command array
672 return q->n_window; /* must be power of 2 */
674 /* Otherwise, use normal size buffers */
675 return index & (q->n_window - 1);
685 #define IWL_OPERATION_MODE_AUTO 0
686 #define IWL_OPERATION_MODE_HT_ONLY 1
687 #define IWL_OPERATION_MODE_MIXED 2
688 #define IWL_OPERATION_MODE_20MHZ 3
690 #define IWL_TX_CRC_SIZE 4
691 #define IWL_TX_DELIMITER_SIZE 4
693 #define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
695 /* Sensitivity and chain noise calibration */
696 #define INITIALIZATION_VALUE 0xFFFF
697 #define IWL4965_CAL_NUM_BEACONS 20
698 #define IWL_CAL_NUM_BEACONS 16
699 #define MAXIMUM_ALLOWED_PATHLOSS 15
701 #define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
703 #define MAX_FA_OFDM 50
704 #define MIN_FA_OFDM 5
705 #define MAX_FA_CCK 50
708 #define AUTO_CORR_STEP_OFDM 1
710 #define AUTO_CORR_STEP_CCK 3
711 #define AUTO_CORR_MAX_TH_CCK 160
714 #define NRG_STEP_CCK 2
716 #define MAX_NUMBER_CCK_NO_FA 100
718 #define AUTO_CORR_CCK_MIN_VAL_DEF (125)
723 #define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
724 #define ALL_BAND_FILTER 0xFF00
725 #define IN_BAND_FILTER 0xFF
726 #define MIN_AVERAGE_NOISE_MAX_VALUE 0xFFFFFFFF
728 #define NRG_NUM_PREV_STAT_L 20
729 #define NUM_RX_CHAINS 3
731 enum iwl4965_false_alarm_state {
734 IWL_FA_GOOD_RANGE = 2,
737 enum iwl4965_chain_noise_state {
738 IWL_CHAIN_NOISE_ALIVE = 0, /* must be 0 */
739 IWL_CHAIN_NOISE_ACCUMULATE,
740 IWL_CHAIN_NOISE_CALIBRATED,
741 IWL_CHAIN_NOISE_DONE,
744 enum iwl4965_calib_enabled_state {
745 IWL_CALIB_DISABLED = 0, /* must be 0 */
746 IWL_CALIB_ENABLED = 1,
752 * defines the order in which results of initial calibrations
753 * should be sent to the runtime uCode
760 IWL_CALIB_TX_IQ_PERD,
765 /* Opaque calibration results */
766 struct iwl_calib_result {
777 /* Sensitivity calib data */
778 struct iwl_sensitivity_data {
780 u32 auto_corr_ofdm_mrc;
781 u32 auto_corr_ofdm_x1;
782 u32 auto_corr_ofdm_mrc_x1;
784 u32 auto_corr_cck_mrc;
786 u32 last_bad_plcp_cnt_ofdm;
787 u32 last_fa_cnt_ofdm;
788 u32 last_bad_plcp_cnt_cck;
794 u8 nrg_silence_rssi[NRG_NUM_PREV_STAT_L];
799 s32 nrg_auto_corr_silence_diff;
800 u32 num_in_cck_no_fa;
803 u16 barker_corr_th_min;
804 u16 barker_corr_th_min_mrc;
808 /* Chain noise (differential Rx gain) calib data */
809 struct iwl_chain_noise_data {
818 u8 disconn_array[NUM_RX_CHAINS];
819 u8 delta_gain_code[NUM_RX_CHAINS];
824 #define EEPROM_SEM_TIMEOUT 10 /* milliseconds */
825 #define EEPROM_SEM_RETRY_LIMIT 1000 /* number of attempts (not time) */
827 #define IWL_TRAFFIC_ENTRIES (256)
828 #define IWL_TRAFFIC_ENTRY_SIZE (64)
831 MEASUREMENT_READY = (1 << 0),
832 MEASUREMENT_ACTIVE = (1 << 1),
836 NVM_DEVICE_TYPE_EEPROM = 0,
841 * Two types of OTP memory access modes
842 * IWL_OTP_ACCESS_ABSOLUTE - absolute address mode,
843 * based on physical memory addressing
844 * IWL_OTP_ACCESS_RELATIVE - relative address mode,
845 * based on logical memory addressing
847 enum iwl_access_mode {
848 IWL_OTP_ACCESS_ABSOLUTE,
849 IWL_OTP_ACCESS_RELATIVE,
853 * enum iwl_pa_type - Power Amplifier type
854 * @IWL_PA_SYSTEM: based on uCode configuration
855 * @IWL_PA_INTERNAL: use Internal only
862 /* interrupt statistics */
863 struct isr_statistics {
873 u32 rx_handlers[REPLY_MAX];
878 #ifdef CONFIG_IWLWIFI_DEBUGFS
879 /* management statistics */
880 enum iwl_mgmt_stats {
881 MANAGEMENT_ASSOC_REQ = 0,
882 MANAGEMENT_ASSOC_RESP,
883 MANAGEMENT_REASSOC_REQ,
884 MANAGEMENT_REASSOC_RESP,
885 MANAGEMENT_PROBE_REQ,
886 MANAGEMENT_PROBE_RESP,
895 /* control statistics */
896 enum iwl_ctrl_stats {
897 CONTROL_BACK_REQ = 0,
908 struct traffic_stats {
909 u32 mgmt[MANAGEMENT_MAX];
910 u32 ctrl[CONTROL_MAX];
915 struct traffic_stats {
921 * iwl_switch_rxon: "channel switch" structure
923 * @ switch_in_progress: channel switch in progress
924 * @ channel: new channel
926 struct iwl_switch_rxon {
927 bool switch_in_progress;
932 * schedule the timer to wake up every UCODE_TRACE_PERIOD milliseconds
933 * to perform continuous uCode event logging operation if enabled
935 #define UCODE_TRACE_PERIOD (100)
938 * iwl_event_log: current uCode event log position
940 * @ucode_trace: enable/disable ucode continuous trace timer
941 * @num_wraps: how many times the event buffer wraps
942 * @next_entry: the entry just before the next one that uCode would fill
943 * @non_wraps_count: counter for no wrap detected when dump ucode events
944 * @wraps_once_count: counter for wrap once detected when dump ucode events
945 * @wraps_more_count: counter for wrap more than once detected
946 * when dump ucode events
948 struct iwl_event_log {
953 int wraps_once_count;
954 int wraps_more_count;
958 * host interrupt timeout value
959 * used with setting interrupt coalescing timer
960 * the CSR_INT_COALESCING is an 8 bit register in 32-usec unit
962 * default interrupt coalescing timer is 64 x 32 = 2048 usecs
963 * default interrupt coalescing calibration timer is 16 x 32 = 512 usecs
965 #define IWL_HOST_INT_TIMEOUT_MAX (0xFF)
966 #define IWL_HOST_INT_TIMEOUT_DEF (0x40)
967 #define IWL_HOST_INT_TIMEOUT_MIN (0x0)
968 #define IWL_HOST_INT_CALIB_TIMEOUT_MAX (0xFF)
969 #define IWL_HOST_INT_CALIB_TIMEOUT_DEF (0x10)
970 #define IWL_HOST_INT_CALIB_TIMEOUT_MIN (0x0)
973 * This is the threshold value of plcp error rate per 100mSecs. It is
974 * used to set and check for the validity of plcp_delta.
976 #define IWL_MAX_PLCP_ERR_THRESHOLD_MIN (0)
977 #define IWL_MAX_PLCP_ERR_THRESHOLD_DEF (50)
978 #define IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF (100)
979 #define IWL_MAX_PLCP_ERR_EXT_LONG_THRESHOLD_DEF (200)
980 #define IWL_MAX_PLCP_ERR_THRESHOLD_MAX (255)
982 #define IWL_DELAY_NEXT_FORCE_RF_RESET (HZ*3)
983 #define IWL_DELAY_NEXT_FORCE_FW_RELOAD (HZ*5)
985 /* timer constants use to monitor and recover stuck tx queues in mSecs */
986 #define IWL_MONITORING_PERIOD (1000)
987 #define IWL_ONE_HUNDRED_MSECS (100)
988 #define IWL_SIXTY_SECS (60000)
996 struct iwl_force_reset {
997 int reset_request_count;
998 int reset_success_count;
999 int reset_reject_count;
1000 unsigned long reset_duration;
1001 unsigned long last_force_reset_jiffies;
1006 /* ieee device used by generic ieee processing code */
1007 struct ieee80211_hw *hw;
1008 struct ieee80211_channel *ieee_channels;
1009 struct ieee80211_rate *ieee_rates;
1010 struct iwl_cfg *cfg;
1012 /* temporary frame storage list */
1013 struct list_head free_frames;
1016 enum ieee80211_band band;
1019 void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv,
1020 struct iwl_rx_mem_buffer *rxb);
1022 struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
1024 /* spectrum measurement report caching */
1025 struct iwl_spectrum_notification measure_report;
1026 u8 measurement_status;
1028 /* ucode beacon time */
1029 u32 ucode_beacon_time;
1030 int missed_beacon_threshold;
1032 /* storing the jiffies when the plcp error rate is received */
1033 unsigned long plcp_jiffies;
1036 struct iwl_force_reset force_reset[IWL_MAX_FORCE_RESET];
1038 /* we allocate array of iwl4965_channel_info for NIC's valid channels.
1039 * Access via channel # using indirect index array */
1040 struct iwl_channel_info *channel_info; /* channel info array */
1041 u8 channel_count; /* # of channels */
1043 /* thermal calibration */
1044 s32 temperature; /* degrees Kelvin */
1045 s32 last_temperature;
1047 /* init calibration results */
1048 struct iwl_calib_result calib_results[IWL_CALIB_MAX];
1050 /* Scan related variables */
1051 unsigned long next_scan_jiffies;
1052 unsigned long scan_start;
1053 unsigned long scan_pass_start;
1054 unsigned long scan_start_tsf;
1057 struct cfg80211_scan_request *scan_request;
1058 bool is_internal_short_scan;
1059 u8 scan_tx_ant[IEEE80211_NUM_BANDS];
1063 spinlock_t lock; /* protect general shared data */
1064 spinlock_t hcmd_lock; /* protect hcmd */
1065 spinlock_t reg_lock; /* protect hw register access */
1067 struct mutex sync_cmd_mutex; /* enable serialization of sync commands */
1069 /* basic pci-network driver stuff */
1070 struct pci_dev *pci_dev;
1072 /* pci hardware address support */
1073 void __iomem *hw_base;
1078 /* uCode images, save to reload in case of failure */
1079 int fw_index; /* firmware we're trying to load */
1080 u32 ucode_ver; /* version of ucode, copy of
1082 struct fw_desc ucode_code; /* runtime inst */
1083 struct fw_desc ucode_data; /* runtime data original */
1084 struct fw_desc ucode_data_backup; /* runtime data save/restore */
1085 struct fw_desc ucode_init; /* initialization inst */
1086 struct fw_desc ucode_init_data; /* initialization data */
1087 struct fw_desc ucode_boot; /* bootstrap inst */
1088 enum ucode_type ucode_type;
1089 u8 ucode_write_complete; /* the image write is complete */
1090 char firmware_name[25];
1093 struct iwl_rxon_time_cmd rxon_timing;
1095 /* We declare this const so it can only be
1096 * changed via explicit cast within the
1097 * routines that actually update the physical
1099 const struct iwl_rxon_cmd active_rxon;
1100 struct iwl_rxon_cmd staging_rxon;
1102 struct iwl_switch_rxon switch_rxon;
1104 /* 1st responses from initialize and runtime uCode images.
1105 * 4965's initialize alive response contains some calibration data. */
1106 struct iwl_init_alive_resp card_alive_init;
1107 struct iwl_alive_resp card_alive;
1109 unsigned long last_blink_time;
1117 struct iwl_sensitivity_data sensitivity_data;
1118 struct iwl_chain_noise_data chain_noise_data;
1119 __le16 sensitivity_tbl[HD_TABLE_SIZE];
1121 struct iwl_ht_config current_ht_config;
1122 u8 last_phy_res[100];
1124 /* Rate scaling data */
1127 wait_queue_head_t wait_command_queue;
1129 int activity_timer_active;
1131 /* Rx and Tx DMA processing queues */
1132 struct iwl_rx_queue rxq;
1133 struct iwl_tx_queue *txq;
1134 unsigned long txq_ctx_active_msk;
1135 struct iwl_dma_ptr kw; /* keep warm address */
1136 struct iwl_dma_ptr scd_bc_tbls;
1138 u32 scd_base_addr; /* scheduler sram base address */
1140 unsigned long status;
1142 /* counts mgmt, ctl, and data packets */
1143 struct traffic_stats tx_stats;
1144 struct traffic_stats rx_stats;
1146 /* counts interrupts */
1147 struct isr_statistics isr_stats;
1149 struct iwl_power_mgr power_data;
1150 struct iwl_tt_mgmt thermal_throttle;
1152 struct iwl_notif_statistics statistics;
1153 #ifdef CONFIG_IWLWIFI_DEBUG
1154 struct iwl_notif_statistics accum_statistics;
1155 struct iwl_notif_statistics delta_statistics;
1156 struct iwl_notif_statistics max_delta;
1159 /* context information */
1162 u8 mac_addr[ETH_ALEN];
1164 /*station table variables */
1165 spinlock_t sta_lock;
1167 struct iwl_station_entry stations[IWL_STATION_COUNT];
1168 struct iwl_wep_key wep_keys[WEP_KEYS_MAX]; /* protected by mutex */
1171 unsigned long ucode_key_table;
1173 /* queue refcounts */
1174 #define IWL_MAX_HW_QUEUES 32
1175 unsigned long queue_stopped[BITS_TO_LONGS(IWL_MAX_HW_QUEUES)];
1177 atomic_t queue_stop_count[4];
1179 /* Indication if ieee80211_ops->open has been called */
1182 u8 mac80211_registered;
1184 /* eeprom -- this is in the card's little endian byte order */
1186 int nvm_device_type;
1187 struct iwl_eeprom_calib_info *calib_info;
1189 enum nl80211_iftype iw_mode;
1191 struct sk_buff *ibss_beacon;
1193 /* Last Rx'd beacon timestamp */
1196 struct ieee80211_vif *vif;
1199 #if defined(CONFIG_IWL3945) || defined(CONFIG_IWL3945_MODULE)
1202 dma_addr_t shared_phys;
1204 struct delayed_work thermal_periodic;
1205 struct delayed_work rfkill_poll;
1207 struct iwl3945_notif_statistics statistics;
1210 int last_rx_rssi; /* From Rx packet statistics */
1212 /* Rx'd packet timing information */
1213 u32 last_beacon_time;
1217 * each calibration channel group in the
1218 * EEPROM has a derived clip setting for
1221 const struct iwl3945_clip_group clip_groups[5];
1225 #if defined(CONFIG_IWLAGN) || defined(CONFIG_IWLAGN_MODULE)
1230 dma_addr_t ict_tbl_dma;
1231 dma_addr_t aligned_ict_tbl_dma;
1236 * reporting the number of tids has AGG on. 0 means
1244 struct iwl_hw_params hw_params;
1247 /* Current association information needed to configure the
1250 u16 assoc_capability;
1252 struct iwl_qos_info qos_data;
1254 struct workqueue_struct *workqueue;
1256 struct work_struct restart;
1257 struct work_struct scan_completed;
1258 struct work_struct rx_replenish;
1259 struct work_struct abort_scan;
1260 struct work_struct request_scan;
1261 struct work_struct beacon_update;
1262 struct work_struct tt_work;
1263 struct work_struct ct_enter;
1264 struct work_struct ct_exit;
1266 struct tasklet_struct irq_tasklet;
1268 struct delayed_work init_alive_start;
1269 struct delayed_work alive_start;
1270 struct delayed_work scan_check;
1273 s8 tx_power_user_lmt;
1274 s8 tx_power_device_lmt;
1275 s8 tx_power_lmt_in_half_dbm; /* max tx power in half-dBm format */
1278 #ifdef CONFIG_IWLWIFI_DEBUG
1279 /* debugging info */
1280 u32 debug_level; /* per device debugging will override global
1281 iwl_debug_level if set */
1283 atomic_t restrict_refcnt;
1285 #ifdef CONFIG_IWLWIFI_DEBUGFS
1291 struct dentry *debugfs_dir;
1292 u32 dbgfs_sram_offset, dbgfs_sram_len;
1293 #endif /* CONFIG_IWLWIFI_DEBUGFS */
1294 #endif /* CONFIG_IWLWIFI_DEBUG */
1296 struct work_struct txpower_work;
1297 u32 disable_sens_cal;
1298 u32 disable_chain_noise_cal;
1299 u32 disable_tx_power_cal;
1300 struct work_struct run_time_calib_work;
1301 struct timer_list statistics_periodic;
1302 struct timer_list ucode_trace;
1303 struct timer_list monitor_recover;
1306 struct iwl_event_log event_log;
1309 static inline void iwl_txq_ctx_activate(struct iwl_priv *priv, int txq_id)
1311 set_bit(txq_id, &priv->txq_ctx_active_msk);
1314 static inline void iwl_txq_ctx_deactivate(struct iwl_priv *priv, int txq_id)
1316 clear_bit(txq_id, &priv->txq_ctx_active_msk);
1319 #ifdef CONFIG_IWLWIFI_DEBUG
1320 const char *iwl_get_tx_fail_reason(u32 status);
1322 * iwl_get_debug_level: Return active debug level for device
1324 * Using sysfs it is possible to set per device debug level. This debug
1325 * level will be used if set, otherwise the global debug level which can be
1326 * set via module parameter is used.
1328 static inline u32 iwl_get_debug_level(struct iwl_priv *priv)
1330 if (priv->debug_level)
1331 return priv->debug_level;
1333 return iwl_debug_level;
1336 static inline const char *iwl_get_tx_fail_reason(u32 status) { return ""; }
1338 static inline u32 iwl_get_debug_level(struct iwl_priv *priv)
1340 return iwl_debug_level;
1345 static inline struct ieee80211_hdr *iwl_tx_queue_get_hdr(struct iwl_priv *priv,
1346 int txq_id, int idx)
1348 if (priv->txq[txq_id].txb[idx].skb[0])
1349 return (struct ieee80211_hdr *)priv->txq[txq_id].
1350 txb[idx].skb[0]->data;
1355 static inline int iwl_is_associated(struct iwl_priv *priv)
1357 return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
1360 static inline int is_channel_valid(const struct iwl_channel_info *ch_info)
1362 if (ch_info == NULL)
1364 return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
1367 static inline int is_channel_radar(const struct iwl_channel_info *ch_info)
1369 return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
1372 static inline u8 is_channel_a_band(const struct iwl_channel_info *ch_info)
1374 return ch_info->band == IEEE80211_BAND_5GHZ;
1377 static inline u8 is_channel_bg_band(const struct iwl_channel_info *ch_info)
1379 return ch_info->band == IEEE80211_BAND_2GHZ;
1382 static inline int is_channel_passive(const struct iwl_channel_info *ch)
1384 return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
1387 static inline int is_channel_ibss(const struct iwl_channel_info *ch)
1389 return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
1392 static inline void __iwl_free_pages(struct iwl_priv *priv, struct page *page)
1394 __free_pages(page, priv->hw_params.rx_page_order);
1395 priv->alloc_rxb_page--;
1398 static inline void iwl_free_pages(struct iwl_priv *priv, unsigned long page)
1400 free_pages(page, priv->hw_params.rx_page_order);
1401 priv->alloc_rxb_page--;
1403 #endif /* __iwl_dev_h__ */