1 /******************************************************************************
3 * Copyright(c) 2003 - 2010 Intel Corporation. All rights reserved.
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of version 2 of the GNU General Public License as
7 * published by the Free Software Foundation.
9 * This program is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
14 * You should have received a copy of the GNU General Public License along with
15 * this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
18 * The full GNU General Public License is included in this distribution in the
19 * file called LICENSE.
21 * Contact Information:
22 * Intel Linux Wireless <ilw@linux.intel.com>
23 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
25 *****************************************************************************/
27 * Please use this file (iwl-dev.h) for driver implementation definitions.
28 * Please use iwl-commands.h for uCode API definitions.
29 * Please use iwl-4965-hw.h for hardware-related definitions.
35 #include <linux/pci.h> /* for struct pci_device_id */
36 #include <linux/kernel.h>
37 #include <net/ieee80211_radiotap.h>
39 #include "iwl-eeprom.h"
43 #include "iwl-debug.h"
44 #include "iwl-4965-hw.h"
45 #include "iwl-3945-hw.h"
46 #include "iwl-agn-hw.h"
48 #include "iwl-power.h"
49 #include "iwl-agn-rs.h"
51 /* configuration for the iwl4965 */
52 extern struct iwl_cfg iwl4965_agn_cfg;
53 extern struct iwl_cfg iwl5300_agn_cfg;
54 extern struct iwl_cfg iwl5100_agn_cfg;
55 extern struct iwl_cfg iwl5350_agn_cfg;
56 extern struct iwl_cfg iwl5100_bgn_cfg;
57 extern struct iwl_cfg iwl5100_abg_cfg;
58 extern struct iwl_cfg iwl5150_agn_cfg;
59 extern struct iwl_cfg iwl5150_abg_cfg;
60 extern struct iwl_cfg iwl6000g2a_2agn_cfg;
61 extern struct iwl_cfg iwl6000i_2agn_cfg;
62 extern struct iwl_cfg iwl6000i_2abg_cfg;
63 extern struct iwl_cfg iwl6000i_2bg_cfg;
64 extern struct iwl_cfg iwl6000_3agn_cfg;
65 extern struct iwl_cfg iwl6050_2agn_cfg;
66 extern struct iwl_cfg iwl6050_2abg_cfg;
67 extern struct iwl_cfg iwl1000_bgn_cfg;
68 extern struct iwl_cfg iwl1000_bg_cfg;
72 /* CT-KILL constants */
73 #define CT_KILL_THRESHOLD_LEGACY 110 /* in Celsius */
74 #define CT_KILL_THRESHOLD 114 /* in Celsius */
75 #define CT_KILL_EXIT_THRESHOLD 95 /* in Celsius */
77 /* Default noise level to report when noise measurement is not available.
78 * This may be because we're:
79 * 1) Not associated (4965, no beacon statistics being sent to driver)
80 * 2) Scanning (noise measurement does not apply to associated channel)
81 * 3) Receiving CCK (3945 delivers noise info only for OFDM frames)
82 * Use default noise value of -127 ... this is below the range of measurable
83 * Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
84 * Also, -127 works better than 0 when averaging frames with/without
85 * noise info (e.g. averaging might be done in app); measured dBm values are
86 * always negative ... using a negative value as the default keeps all
87 * averages within an s8's (used in some apps) range of negative values. */
88 #define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
91 * RTS threshold here is total size [2347] minus 4 FCS bytes
93 * a value of 0 means RTS on all data/management packets
94 * a value > max MSDU size means no RTS
95 * else RTS for data/management frames where MPDU is larger
98 #define DEFAULT_RTS_THRESHOLD 2347U
99 #define MIN_RTS_THRESHOLD 0U
100 #define MAX_RTS_THRESHOLD 2347U
101 #define MAX_MSDU_SIZE 2304U
102 #define MAX_MPDU_SIZE 2346U
103 #define DEFAULT_BEACON_INTERVAL 100U
104 #define DEFAULT_SHORT_RETRY_LIMIT 7U
105 #define DEFAULT_LONG_RETRY_LIMIT 4U
107 struct iwl_rx_mem_buffer {
110 struct list_head list;
113 #define rxb_addr(r) page_address(r->page)
116 struct iwl_device_cmd;
118 struct iwl_cmd_meta {
119 /* only for SYNC commands, iff the reply skb is wanted */
120 struct iwl_host_cmd *source;
122 * only for ASYNC commands
123 * (which is somewhat stupid -- look at iwl-sta.c for instance
124 * which duplicates a bunch of code because the callback isn't
125 * invoked for SYNC commands, if it were and its result passed
126 * through it would be simpler...)
128 void (*callback)(struct iwl_priv *priv,
129 struct iwl_device_cmd *cmd,
130 struct iwl_rx_packet *pkt);
132 /* The CMD_SIZE_HUGE flag bit indicates that the command
133 * structure is stored at the end of the shared queue memory. */
136 DECLARE_PCI_UNMAP_ADDR(mapping)
137 DECLARE_PCI_UNMAP_LEN(len)
141 * Generic queue structure
143 * Contains common data for Rx and Tx queues
146 int n_bd; /* number of BDs in this queue */
147 int write_ptr; /* 1-st empty entry (index) host_w*/
148 int read_ptr; /* last used entry (index) host_r*/
149 /* use for monitoring and recovering the stuck queue */
150 int last_read_ptr; /* storing the last read_ptr */
151 /* number of time read_ptr and last_read_ptr are the same */
152 u8 repeat_same_read_ptr;
153 dma_addr_t dma_addr; /* physical addr for BD's */
154 int n_window; /* safe queue window */
156 int low_mark; /* low watermark, resume queue if free
157 * space more than this */
158 int high_mark; /* high watermark, stop queue if free
159 * space less than this */
160 } __attribute__ ((packed));
162 /* One for each TFD */
164 struct sk_buff *skb[IWL_NUM_OF_TBS - 1];
168 * struct iwl_tx_queue - Tx Queue for DMA
169 * @q: generic Rx/Tx queue descriptor
170 * @bd: base of circular buffer of TFDs
171 * @cmd: array of command/TX buffer pointers
172 * @meta: array of meta data for each command/tx buffer
173 * @dma_addr_cmd: physical address of cmd/tx buffer array
174 * @txb: array of per-TFD driver data
175 * @need_update: indicates need to update read/write index
176 * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
178 * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
179 * descriptors) and required locking structures.
181 #define TFD_TX_CMD_SLOTS 256
182 #define TFD_CMD_SLOTS 32
184 struct iwl_tx_queue {
187 struct iwl_device_cmd **cmd;
188 struct iwl_cmd_meta *meta;
189 struct iwl_tx_info *txb;
196 #define IWL_NUM_SCAN_RATES (2)
198 struct iwl4965_channel_tgd_info {
203 struct iwl4965_channel_tgh_info {
207 #define IWL4965_MAX_RATE (33)
209 struct iwl3945_clip_group {
210 /* maximum power level to prevent clipping for each rate, derived by
211 * us from this band's saturation power in EEPROM */
212 const s8 clip_powers[IWL_MAX_RATES];
215 /* current Tx power values to use, one for each rate for each channel.
216 * requested power is limited by:
217 * -- regulatory EEPROM limits for this channel
218 * -- hardware capabilities (clip-powers)
219 * -- spectrum management
220 * -- user preference (e.g. iwconfig)
221 * when requested power is set, base power index must also be set. */
222 struct iwl3945_channel_power_info {
223 struct iwl3945_tx_power tpc; /* actual radio and DSP gain settings */
224 s8 power_table_index; /* actual (compenst'd) index into gain table */
225 s8 base_power_index; /* gain index for power at factory temp. */
226 s8 requested_power; /* power (dBm) requested for this chnl/rate */
229 /* current scan Tx power values to use, one for each scan rate for each
231 struct iwl3945_scan_power_info {
232 struct iwl3945_tx_power tpc; /* actual radio and DSP gain settings */
233 s8 power_table_index; /* actual (compenst'd) index into gain table */
234 s8 requested_power; /* scan pwr (dBm) requested for chnl/rate */
238 * One for each channel, holds all channel setup data
239 * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
242 struct iwl_channel_info {
243 struct iwl4965_channel_tgd_info tgd;
244 struct iwl4965_channel_tgh_info tgh;
245 struct iwl_eeprom_channel eeprom; /* EEPROM regulatory limit */
246 struct iwl_eeprom_channel ht40_eeprom; /* EEPROM regulatory limit for
249 u8 channel; /* channel number */
250 u8 flags; /* flags copied from EEPROM */
251 s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
252 s8 curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) limit */
253 s8 min_power; /* always 0 */
254 s8 scan_power; /* (dBm) regul. eeprom, direct scans, any rate */
256 u8 group_index; /* 0-4, maps channel to group1/2/3/4/5 */
257 u8 band_index; /* 0-4, maps channel to band1/2/3/4/5 */
258 enum ieee80211_band band;
260 /* HT40 channel info */
261 s8 ht40_max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
262 u8 ht40_flags; /* flags copied from EEPROM */
263 u8 ht40_extension_channel; /* HT_IE_EXT_CHANNEL_* */
265 /* Radio/DSP gain settings for each "normal" data Tx rate.
266 * These include, in addition to RF and DSP gain, a few fields for
267 * remembering/modifying gain settings (indexes). */
268 struct iwl3945_channel_power_info power_info[IWL4965_MAX_RATE];
270 /* Radio/DSP gain settings for each scan rate, for directed scans. */
271 struct iwl3945_scan_power_info scan_pwr_info[IWL_NUM_SCAN_RATES];
274 #define IWL_TX_FIFO_BK 0
275 #define IWL_TX_FIFO_BE 1
276 #define IWL_TX_FIFO_VI 2
277 #define IWL_TX_FIFO_VO 3
278 #define IWL_TX_FIFO_UNUSED -1
280 /* Minimum number of queues. MAX_NUM is defined in hw specific files.
281 * Set the minimum to accommodate the 4 standard TX queues, 1 command
282 * queue, 2 (unused) HCCA queues, and 4 HT queues (one for each AC) */
283 #define IWL_MIN_NUM_QUEUES 10
286 * Queue #4 is the command queue for 3945/4965/5x00/1000/6x00,
287 * the driver maps it into the appropriate device FIFO for the
290 #define IWL_CMD_QUEUE_NUM 4
292 /* Power management (not Tx power) structures */
299 #define IEEE80211_DATA_LEN 2304
300 #define IEEE80211_4ADDR_LEN 30
301 #define IEEE80211_HLEN (IEEE80211_4ADDR_LEN)
302 #define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
306 struct ieee80211_hdr frame;
307 struct iwl_tx_beacon_cmd beacon;
308 u8 raw[IEEE80211_FRAME_LEN];
311 struct list_head list;
314 #define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
315 #define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
316 #define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
322 CMD_SIZE_HUGE = (1 << 0),
323 CMD_ASYNC = (1 << 1),
324 CMD_WANT_SKB = (1 << 2),
327 #define DEF_CMD_PAYLOAD_SIZE 320
330 * struct iwl_device_cmd
332 * For allocation of the command and tx queues, this establishes the overall
333 * size of the largest command we send to uCode, except for a scan command
334 * (which is relatively huge; space is allocated separately).
336 struct iwl_device_cmd {
337 struct iwl_cmd_header hdr; /* uCode API */
343 struct iwl_tx_cmd tx;
344 struct iwl6000_channel_switch_cmd chswitch;
345 u8 payload[DEF_CMD_PAYLOAD_SIZE];
346 } __attribute__ ((packed)) cmd;
347 } __attribute__ ((packed));
349 #define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_device_cmd))
352 struct iwl_host_cmd {
354 unsigned long reply_page;
355 void (*callback)(struct iwl_priv *priv,
356 struct iwl_device_cmd *cmd,
357 struct iwl_rx_packet *pkt);
363 #define SUP_RATE_11A_MAX_NUM_CHANNELS 8
364 #define SUP_RATE_11B_MAX_NUM_CHANNELS 4
365 #define SUP_RATE_11G_MAX_NUM_CHANNELS 12
368 * struct iwl_rx_queue - Rx queue
369 * @bd: driver's pointer to buffer of receive buffer descriptors (rbd)
370 * @dma_addr: bus address of buffer of receive buffer descriptors (rbd)
371 * @read: Shared index to newest available Rx buffer
372 * @write: Shared index to oldest written Rx packet
373 * @free_count: Number of pre-allocated buffers in rx_free
374 * @rx_free: list of free SKBs for use
375 * @rx_used: List of Rx buffers with no SKB
376 * @need_update: flag to indicate we need to update read/write index
377 * @rb_stts: driver's pointer to receive buffer status
378 * @rb_stts_dma: bus address of receive buffer status
380 * NOTE: rx_free and rx_used are used as a FIFO for iwl_rx_mem_buffers
382 struct iwl_rx_queue {
385 struct iwl_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
386 struct iwl_rx_mem_buffer *queue[RX_QUEUE_SIZE];
391 struct list_head rx_free;
392 struct list_head rx_used;
394 struct iwl_rb_status *rb_stts;
395 dma_addr_t rb_stts_dma;
399 #define IWL_SUPPORTED_RATES_IE_LEN 8
401 #define MAX_TID_COUNT 9
403 #define IWL_INVALID_RATE 0xFF
404 #define IWL_INVALID_VALUE -1
407 * struct iwl_ht_agg -- aggregation status while waiting for block-ack
408 * @txq_id: Tx queue used for Tx attempt
409 * @frame_count: # frames attempted by Tx command
410 * @wait_for_ba: Expect block-ack before next Tx reply
411 * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window
412 * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window
413 * @bitmap1: High order, one bit for each frame pending ACK in Tx window
414 * @rate_n_flags: Rate at which Tx was attempted
416 * If REPLY_TX indicates that aggregation was attempted, driver must wait
417 * for block ack (REPLY_COMPRESSED_BA). This struct stores tx reply info
418 * until block ack arrives.
427 #define IWL_AGG_OFF 0
429 #define IWL_EMPTYING_HW_QUEUE_ADDBA 2
430 #define IWL_EMPTYING_HW_QUEUE_DELBA 3
435 struct iwl_tid_data {
438 struct iwl_ht_agg agg;
442 enum ieee80211_key_alg alg;
448 union iwl_ht_rate_supp {
456 #define CFG_HT_RX_AMPDU_FACTOR_DEF (0x3)
459 * Maximal MPDU density for TX aggregation
465 #define CFG_HT_MPDU_DENSITY_4USEC (0x5)
466 #define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_4USEC
468 struct iwl_ht_config {
469 /* self configuration data */
472 bool single_chain_sufficient;
473 enum ieee80211_smps_mode smps; /* current smps mode */
474 /* BSS related data */
475 u8 extension_chan_offset;
477 u8 non_GF_STA_present;
481 struct iwl_qos_info {
483 struct iwl_qosparam_cmd def_qos_parm;
487 * Structure should be accessed with sta_lock held. When station addition
488 * is in progress (IWL_STA_UCODE_INPROGRESS) it is possible to access only
489 * the commands (iwl_addsta_cmd and iwl_link_quality_cmd) without sta_lock
492 struct iwl_station_entry {
493 struct iwl_addsta_cmd sta;
494 struct iwl_tid_data tid[MAX_TID_COUNT];
496 struct iwl_hw_key keyinfo;
497 struct iwl_link_quality_cmd *lq;
501 * iwl_station_priv: Driver's private station information
503 * When mac80211 creates a station it reserves some space (hw->sta_data_size)
504 * in the structure for use by driver. This structure is places in that
507 struct iwl_station_priv {
508 struct iwl_lq_sta lq_sta;
509 atomic_t pending_frames;
514 /* one for each uCode image (inst/data, boot/init/runtime) */
516 void *v_addr; /* access by driver */
517 dma_addr_t p_addr; /* access by card's busmaster DMA */
521 /* v1/v2 uCode file layout */
522 struct iwl_ucode_header {
523 __le32 ver; /* major/minor/API/serial */
526 __le32 inst_size; /* bytes of runtime code */
527 __le32 data_size; /* bytes of runtime data */
528 __le32 init_size; /* bytes of init code */
529 __le32 init_data_size; /* bytes of init data */
530 __le32 boot_size; /* bytes of bootstrap code */
531 u8 data[0]; /* in same order as sizes */
534 __le32 build; /* build number */
535 __le32 inst_size; /* bytes of runtime code */
536 __le32 data_size; /* bytes of runtime data */
537 __le32 init_size; /* bytes of init code */
538 __le32 init_data_size; /* bytes of init data */
539 __le32 boot_size; /* bytes of bootstrap code */
540 u8 data[0]; /* in same order as sizes */
546 * new TLV uCode file layout
548 * The new TLV file format contains TLVs, that each specify
549 * some piece of data. To facilitate "groups", for example
550 * different instruction image with different capabilities,
551 * bundled with the same init image, an alternative mechanism
553 * When the alternative field is 0, that means that the item
554 * is always valid. When it is non-zero, then it is only
555 * valid in conjunction with items of the same alternative,
556 * in which case the driver (user) selects one alternative
560 enum iwl_ucode_tlv_type {
561 IWL_UCODE_TLV_INVALID = 0, /* unused */
562 IWL_UCODE_TLV_INST = 1,
563 IWL_UCODE_TLV_DATA = 2,
564 IWL_UCODE_TLV_INIT = 3,
565 IWL_UCODE_TLV_INIT_DATA = 4,
566 IWL_UCODE_TLV_BOOT = 5,
567 IWL_UCODE_TLV_PROBE_MAX_LEN = 6, /* a u32 value */
570 struct iwl_ucode_tlv {
571 __le16 type; /* see above */
572 __le16 alternative; /* see comment */
573 __le32 length; /* not including type/length fields */
575 } __attribute__ ((packed));
577 #define IWL_TLV_UCODE_MAGIC 0x0a4c5749
579 struct iwl_tlv_ucode_header {
581 * The TLV style ucode header is distinguished from
582 * the v1/v2 style header by first four bytes being
583 * zero, as such is an invalid combination of
584 * major/minor/API/serial versions.
588 u8 human_readable[64];
589 __le32 ver; /* major/minor/API/serial */
591 __le64 alternatives; /* bitmask of valid alternatives */
593 * The data contained herein has a TLV layout,
594 * see above for the TLV header and types.
595 * Note that each TLV is padded to a length
596 * that is a multiple of 4 for alignment.
601 struct iwl4965_ibss_seq {
605 unsigned long packet_time;
606 struct list_head list;
609 struct iwl_sensitivity_ranges {
616 u16 auto_corr_min_ofdm;
617 u16 auto_corr_min_ofdm_mrc;
618 u16 auto_corr_min_ofdm_x1;
619 u16 auto_corr_min_ofdm_mrc_x1;
621 u16 auto_corr_max_ofdm;
622 u16 auto_corr_max_ofdm_mrc;
623 u16 auto_corr_max_ofdm_x1;
624 u16 auto_corr_max_ofdm_mrc_x1;
626 u16 auto_corr_max_cck;
627 u16 auto_corr_max_cck_mrc;
628 u16 auto_corr_min_cck;
629 u16 auto_corr_min_cck_mrc;
631 u16 barker_corr_th_min;
632 u16 barker_corr_th_min_mrc;
637 #define KELVIN_TO_CELSIUS(x) ((x)-273)
638 #define CELSIUS_TO_KELVIN(x) ((x)+273)
642 * struct iwl_hw_params
643 * @max_txq_num: Max # Tx queues supported
644 * @dma_chnl_num: Number of Tx DMA/FIFO channels
645 * @scd_bc_tbls_size: size of scheduler byte count tables
646 * @tfd_size: TFD size
647 * @tx/rx_chains_num: Number of TX/RX chains
648 * @valid_tx/rx_ant: usable antennas
649 * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
650 * @max_rxq_log: Log-base-2 of max_rxq_size
651 * @rx_page_order: Rx buffer page order
652 * @rx_wrt_ptr_reg: FH{39}_RSCSR_CHNL0_WPTR
655 * @ht40_channel: is 40MHz width possible in band 2.4
656 * BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ)
657 * @sw_crypto: 0 for hw, 1 for sw
658 * @max_xxx_size: for ucode uses
659 * @ct_kill_threshold: temperature threshold
660 * @calib_init_cfg: setup initial calibrations for the hw
661 * @struct iwl_sensitivity_ranges: range of sensitivity values
663 struct iwl_hw_params {
666 u16 scd_bc_tbls_size;
679 u8 max_beacon_itrvl; /* in 1024 ms */
683 u32 ct_kill_threshold; /* value in hw-dependent units */
684 u32 ct_kill_exit_threshold; /* value in hw-dependent units */
685 /* for 1000, 6000 series and up */
687 const struct iwl_sensitivity_ranges *sens;
691 /******************************************************************************
693 * Functions implemented in core module which are forward declared here
694 * for use by iwl-[4-5].c
696 * NOTE: The implementation of these functions are not hardware specific
697 * which is why they are in the core module files.
699 * Naming convention --
700 * iwl_ <-- Is part of iwlwifi
701 * iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
702 * iwl4965_bg_ <-- Called from work queue context
703 * iwl4965_mac_ <-- mac80211 callback
705 ****************************************************************************/
706 extern void iwl_update_chain_flags(struct iwl_priv *priv);
707 extern int iwl_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src);
708 extern const u8 iwl_bcast_addr[ETH_ALEN];
709 extern int iwl_rxq_stop(struct iwl_priv *priv);
710 extern void iwl_txq_ctx_stop(struct iwl_priv *priv);
711 extern int iwl_queue_space(const struct iwl_queue *q);
712 static inline int iwl_queue_used(const struct iwl_queue *q, int i)
714 return q->write_ptr >= q->read_ptr ?
715 (i >= q->read_ptr && i < q->write_ptr) :
716 !(i < q->read_ptr && i >= q->write_ptr);
720 static inline u8 get_cmd_index(struct iwl_queue *q, u32 index, int is_huge)
723 * This is for init calibration result and scan command which
724 * required buffer > TFD_MAX_PAYLOAD_SIZE,
725 * the big buffer at end of command array
728 return q->n_window; /* must be power of 2 */
730 /* Otherwise, use normal size buffers */
731 return index & (q->n_window - 1);
741 #define IWL_OPERATION_MODE_AUTO 0
742 #define IWL_OPERATION_MODE_HT_ONLY 1
743 #define IWL_OPERATION_MODE_MIXED 2
744 #define IWL_OPERATION_MODE_20MHZ 3
746 #define IWL_TX_CRC_SIZE 4
747 #define IWL_TX_DELIMITER_SIZE 4
749 #define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
751 /* Sensitivity and chain noise calibration */
752 #define INITIALIZATION_VALUE 0xFFFF
753 #define IWL4965_CAL_NUM_BEACONS 20
754 #define IWL_CAL_NUM_BEACONS 16
755 #define MAXIMUM_ALLOWED_PATHLOSS 15
757 #define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
759 #define MAX_FA_OFDM 50
760 #define MIN_FA_OFDM 5
761 #define MAX_FA_CCK 50
764 #define AUTO_CORR_STEP_OFDM 1
766 #define AUTO_CORR_STEP_CCK 3
767 #define AUTO_CORR_MAX_TH_CCK 160
770 #define NRG_STEP_CCK 2
772 #define MAX_NUMBER_CCK_NO_FA 100
774 #define AUTO_CORR_CCK_MIN_VAL_DEF (125)
779 #define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
780 #define ALL_BAND_FILTER 0xFF00
781 #define IN_BAND_FILTER 0xFF
782 #define MIN_AVERAGE_NOISE_MAX_VALUE 0xFFFFFFFF
784 #define NRG_NUM_PREV_STAT_L 20
785 #define NUM_RX_CHAINS 3
787 enum iwl4965_false_alarm_state {
790 IWL_FA_GOOD_RANGE = 2,
793 enum iwl4965_chain_noise_state {
794 IWL_CHAIN_NOISE_ALIVE = 0, /* must be 0 */
795 IWL_CHAIN_NOISE_ACCUMULATE,
796 IWL_CHAIN_NOISE_CALIBRATED,
797 IWL_CHAIN_NOISE_DONE,
800 enum iwl4965_calib_enabled_state {
801 IWL_CALIB_DISABLED = 0, /* must be 0 */
802 IWL_CALIB_ENABLED = 1,
808 * defines the order in which results of initial calibrations
809 * should be sent to the runtime uCode
816 IWL_CALIB_TX_IQ_PERD,
821 /* Opaque calibration results */
822 struct iwl_calib_result {
833 /* Sensitivity calib data */
834 struct iwl_sensitivity_data {
836 u32 auto_corr_ofdm_mrc;
837 u32 auto_corr_ofdm_x1;
838 u32 auto_corr_ofdm_mrc_x1;
840 u32 auto_corr_cck_mrc;
842 u32 last_bad_plcp_cnt_ofdm;
843 u32 last_fa_cnt_ofdm;
844 u32 last_bad_plcp_cnt_cck;
850 u8 nrg_silence_rssi[NRG_NUM_PREV_STAT_L];
855 s32 nrg_auto_corr_silence_diff;
856 u32 num_in_cck_no_fa;
859 u16 barker_corr_th_min;
860 u16 barker_corr_th_min_mrc;
864 /* Chain noise (differential Rx gain) calib data */
865 struct iwl_chain_noise_data {
874 u8 disconn_array[NUM_RX_CHAINS];
875 u8 delta_gain_code[NUM_RX_CHAINS];
880 #define EEPROM_SEM_TIMEOUT 10 /* milliseconds */
881 #define EEPROM_SEM_RETRY_LIMIT 1000 /* number of attempts (not time) */
883 #define IWL_TRAFFIC_ENTRIES (256)
884 #define IWL_TRAFFIC_ENTRY_SIZE (64)
887 MEASUREMENT_READY = (1 << 0),
888 MEASUREMENT_ACTIVE = (1 << 1),
892 NVM_DEVICE_TYPE_EEPROM = 0,
897 * Two types of OTP memory access modes
898 * IWL_OTP_ACCESS_ABSOLUTE - absolute address mode,
899 * based on physical memory addressing
900 * IWL_OTP_ACCESS_RELATIVE - relative address mode,
901 * based on logical memory addressing
903 enum iwl_access_mode {
904 IWL_OTP_ACCESS_ABSOLUTE,
905 IWL_OTP_ACCESS_RELATIVE,
909 * enum iwl_pa_type - Power Amplifier type
910 * @IWL_PA_SYSTEM: based on uCode configuration
911 * @IWL_PA_INTERNAL: use Internal only
918 /* interrupt statistics */
919 struct isr_statistics {
929 u32 rx_handlers[REPLY_MAX];
934 #ifdef CONFIG_IWLWIFI_DEBUGFS
935 /* management statistics */
936 enum iwl_mgmt_stats {
937 MANAGEMENT_ASSOC_REQ = 0,
938 MANAGEMENT_ASSOC_RESP,
939 MANAGEMENT_REASSOC_REQ,
940 MANAGEMENT_REASSOC_RESP,
941 MANAGEMENT_PROBE_REQ,
942 MANAGEMENT_PROBE_RESP,
951 /* control statistics */
952 enum iwl_ctrl_stats {
953 CONTROL_BACK_REQ = 0,
964 struct traffic_stats {
965 u32 mgmt[MANAGEMENT_MAX];
966 u32 ctrl[CONTROL_MAX];
971 struct traffic_stats {
977 * iwl_switch_rxon: "channel switch" structure
979 * @ switch_in_progress: channel switch in progress
980 * @ channel: new channel
982 struct iwl_switch_rxon {
983 bool switch_in_progress;
988 * schedule the timer to wake up every UCODE_TRACE_PERIOD milliseconds
989 * to perform continuous uCode event logging operation if enabled
991 #define UCODE_TRACE_PERIOD (100)
994 * iwl_event_log: current uCode event log position
996 * @ucode_trace: enable/disable ucode continuous trace timer
997 * @num_wraps: how many times the event buffer wraps
998 * @next_entry: the entry just before the next one that uCode would fill
999 * @non_wraps_count: counter for no wrap detected when dump ucode events
1000 * @wraps_once_count: counter for wrap once detected when dump ucode events
1001 * @wraps_more_count: counter for wrap more than once detected
1002 * when dump ucode events
1004 struct iwl_event_log {
1008 int non_wraps_count;
1009 int wraps_once_count;
1010 int wraps_more_count;
1014 * host interrupt timeout value
1015 * used with setting interrupt coalescing timer
1016 * the CSR_INT_COALESCING is an 8 bit register in 32-usec unit
1018 * default interrupt coalescing timer is 64 x 32 = 2048 usecs
1019 * default interrupt coalescing calibration timer is 16 x 32 = 512 usecs
1021 #define IWL_HOST_INT_TIMEOUT_MAX (0xFF)
1022 #define IWL_HOST_INT_TIMEOUT_DEF (0x40)
1023 #define IWL_HOST_INT_TIMEOUT_MIN (0x0)
1024 #define IWL_HOST_INT_CALIB_TIMEOUT_MAX (0xFF)
1025 #define IWL_HOST_INT_CALIB_TIMEOUT_DEF (0x10)
1026 #define IWL_HOST_INT_CALIB_TIMEOUT_MIN (0x0)
1029 * This is the threshold value of plcp error rate per 100mSecs. It is
1030 * used to set and check for the validity of plcp_delta.
1032 #define IWL_MAX_PLCP_ERR_THRESHOLD_MIN (0)
1033 #define IWL_MAX_PLCP_ERR_THRESHOLD_DEF (50)
1034 #define IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF (100)
1035 #define IWL_MAX_PLCP_ERR_EXT_LONG_THRESHOLD_DEF (200)
1036 #define IWL_MAX_PLCP_ERR_THRESHOLD_MAX (255)
1038 #define IWL_DELAY_NEXT_FORCE_RF_RESET (HZ*3)
1039 #define IWL_DELAY_NEXT_FORCE_FW_RELOAD (HZ*5)
1041 /* timer constants use to monitor and recover stuck tx queues in mSecs */
1042 #define IWL_MONITORING_PERIOD (1000)
1043 #define IWL_ONE_HUNDRED_MSECS (100)
1044 #define IWL_SIXTY_SECS (60000)
1049 IWL_MAX_FORCE_RESET,
1052 struct iwl_force_reset {
1053 int reset_request_count;
1054 int reset_success_count;
1055 int reset_reject_count;
1056 unsigned long reset_duration;
1057 unsigned long last_force_reset_jiffies;
1062 /* ieee device used by generic ieee processing code */
1063 struct ieee80211_hw *hw;
1064 struct ieee80211_channel *ieee_channels;
1065 struct ieee80211_rate *ieee_rates;
1066 struct iwl_cfg *cfg;
1068 /* temporary frame storage list */
1069 struct list_head free_frames;
1072 enum ieee80211_band band;
1075 void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv,
1076 struct iwl_rx_mem_buffer *rxb);
1078 struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
1080 /* spectrum measurement report caching */
1081 struct iwl_spectrum_notification measure_report;
1082 u8 measurement_status;
1084 /* ucode beacon time */
1085 u32 ucode_beacon_time;
1086 int missed_beacon_threshold;
1088 /* storing the jiffies when the plcp error rate is received */
1089 unsigned long plcp_jiffies;
1092 struct iwl_force_reset force_reset[IWL_MAX_FORCE_RESET];
1094 /* we allocate array of iwl4965_channel_info for NIC's valid channels.
1095 * Access via channel # using indirect index array */
1096 struct iwl_channel_info *channel_info; /* channel info array */
1097 u8 channel_count; /* # of channels */
1099 /* thermal calibration */
1100 s32 temperature; /* degrees Kelvin */
1101 s32 last_temperature;
1103 /* init calibration results */
1104 struct iwl_calib_result calib_results[IWL_CALIB_MAX];
1106 /* Scan related variables */
1107 unsigned long scan_start;
1108 unsigned long scan_start_tsf;
1110 enum ieee80211_band scan_band;
1111 struct cfg80211_scan_request *scan_request;
1112 bool is_internal_short_scan;
1113 u8 scan_tx_ant[IEEE80211_NUM_BANDS];
1117 spinlock_t lock; /* protect general shared data */
1118 spinlock_t hcmd_lock; /* protect hcmd */
1119 spinlock_t reg_lock; /* protect hw register access */
1121 struct mutex sync_cmd_mutex; /* enable serialization of sync commands */
1123 /* basic pci-network driver stuff */
1124 struct pci_dev *pci_dev;
1126 /* pci hardware address support */
1127 void __iomem *hw_base;
1132 /* uCode images, save to reload in case of failure */
1133 int fw_index; /* firmware we're trying to load */
1134 u32 ucode_ver; /* version of ucode, copy of
1136 struct fw_desc ucode_code; /* runtime inst */
1137 struct fw_desc ucode_data; /* runtime data original */
1138 struct fw_desc ucode_data_backup; /* runtime data save/restore */
1139 struct fw_desc ucode_init; /* initialization inst */
1140 struct fw_desc ucode_init_data; /* initialization data */
1141 struct fw_desc ucode_boot; /* bootstrap inst */
1142 enum ucode_type ucode_type;
1143 u8 ucode_write_complete; /* the image write is complete */
1144 char firmware_name[25];
1147 struct iwl_rxon_time_cmd rxon_timing;
1149 /* We declare this const so it can only be
1150 * changed via explicit cast within the
1151 * routines that actually update the physical
1153 const struct iwl_rxon_cmd active_rxon;
1154 struct iwl_rxon_cmd staging_rxon;
1156 struct iwl_switch_rxon switch_rxon;
1158 /* 1st responses from initialize and runtime uCode images.
1159 * 4965's initialize alive response contains some calibration data. */
1160 struct iwl_init_alive_resp card_alive_init;
1161 struct iwl_alive_resp card_alive;
1163 unsigned long last_blink_time;
1171 struct iwl_sensitivity_data sensitivity_data;
1172 struct iwl_chain_noise_data chain_noise_data;
1173 __le16 sensitivity_tbl[HD_TABLE_SIZE];
1175 struct iwl_ht_config current_ht_config;
1177 /* Rate scaling data */
1180 wait_queue_head_t wait_command_queue;
1182 int activity_timer_active;
1184 /* Rx and Tx DMA processing queues */
1185 struct iwl_rx_queue rxq;
1186 struct iwl_tx_queue *txq;
1187 unsigned long txq_ctx_active_msk;
1188 struct iwl_dma_ptr kw; /* keep warm address */
1189 struct iwl_dma_ptr scd_bc_tbls;
1191 u32 scd_base_addr; /* scheduler sram base address */
1193 unsigned long status;
1195 /* counts mgmt, ctl, and data packets */
1196 struct traffic_stats tx_stats;
1197 struct traffic_stats rx_stats;
1199 /* counts interrupts */
1200 struct isr_statistics isr_stats;
1202 struct iwl_power_mgr power_data;
1203 struct iwl_tt_mgmt thermal_throttle;
1205 struct iwl_notif_statistics statistics;
1206 #ifdef CONFIG_IWLWIFI_DEBUG
1207 struct iwl_notif_statistics accum_statistics;
1208 struct iwl_notif_statistics delta_statistics;
1209 struct iwl_notif_statistics max_delta;
1212 /* context information */
1214 u8 mac_addr[ETH_ALEN];
1216 /*station table variables */
1217 spinlock_t sta_lock;
1219 struct iwl_station_entry stations[IWL_STATION_COUNT];
1220 struct iwl_wep_key wep_keys[WEP_KEYS_MAX]; /* protected by mutex */
1222 unsigned long ucode_key_table;
1224 /* queue refcounts */
1225 #define IWL_MAX_HW_QUEUES 32
1226 unsigned long queue_stopped[BITS_TO_LONGS(IWL_MAX_HW_QUEUES)];
1228 atomic_t queue_stop_count[4];
1230 /* Indication if ieee80211_ops->open has been called */
1233 u8 mac80211_registered;
1235 /* eeprom -- this is in the card's little endian byte order */
1237 int nvm_device_type;
1238 struct iwl_eeprom_calib_info *calib_info;
1240 enum nl80211_iftype iw_mode;
1242 struct sk_buff *ibss_beacon;
1244 /* Last Rx'd beacon timestamp */
1246 struct ieee80211_vif *vif;
1249 #if defined(CONFIG_IWL3945) || defined(CONFIG_IWL3945_MODULE)
1252 dma_addr_t shared_phys;
1254 struct delayed_work thermal_periodic;
1255 struct delayed_work rfkill_poll;
1257 struct iwl3945_notif_statistics statistics;
1258 #ifdef CONFIG_IWLWIFI_DEBUG
1259 struct iwl3945_notif_statistics accum_statistics;
1260 struct iwl3945_notif_statistics delta_statistics;
1261 struct iwl3945_notif_statistics max_delta;
1265 int last_rx_rssi; /* From Rx packet statistics */
1267 /* Rx'd packet timing information */
1268 u32 last_beacon_time;
1272 * each calibration channel group in the
1273 * EEPROM has a derived clip setting for
1276 const struct iwl3945_clip_group clip_groups[5];
1280 #if defined(CONFIG_IWLAGN) || defined(CONFIG_IWLAGN_MODULE)
1285 dma_addr_t ict_tbl_dma;
1286 dma_addr_t aligned_ict_tbl_dma;
1291 * reporting the number of tids has AGG on. 0 means
1296 struct iwl_rx_phy_res last_phy_res;
1297 bool last_phy_res_valid;
1299 struct completion firmware_loading_complete;
1304 struct iwl_hw_params hw_params;
1308 struct iwl_qos_info qos_data;
1310 struct workqueue_struct *workqueue;
1312 struct work_struct restart;
1313 struct work_struct scan_completed;
1314 struct work_struct rx_replenish;
1315 struct work_struct abort_scan;
1316 struct work_struct beacon_update;
1317 struct work_struct tt_work;
1318 struct work_struct ct_enter;
1319 struct work_struct ct_exit;
1320 struct work_struct start_internal_scan;
1322 struct tasklet_struct irq_tasklet;
1324 struct delayed_work init_alive_start;
1325 struct delayed_work alive_start;
1326 struct delayed_work scan_check;
1329 s8 tx_power_user_lmt;
1330 s8 tx_power_device_lmt;
1331 s8 tx_power_lmt_in_half_dbm; /* max tx power in half-dBm format */
1334 #ifdef CONFIG_IWLWIFI_DEBUG
1335 /* debugging info */
1336 u32 debug_level; /* per device debugging will override global
1337 iwl_debug_level if set */
1339 atomic_t restrict_refcnt;
1341 #ifdef CONFIG_IWLWIFI_DEBUGFS
1347 struct dentry *debugfs_dir;
1348 u32 dbgfs_sram_offset, dbgfs_sram_len;
1349 #endif /* CONFIG_IWLWIFI_DEBUGFS */
1350 #endif /* CONFIG_IWLWIFI_DEBUG */
1352 struct work_struct txpower_work;
1353 u32 disable_sens_cal;
1354 u32 disable_chain_noise_cal;
1355 u32 disable_tx_power_cal;
1356 struct work_struct run_time_calib_work;
1357 struct timer_list statistics_periodic;
1358 struct timer_list ucode_trace;
1359 struct timer_list monitor_recover;
1362 struct iwl_event_log event_log;
1365 static inline void iwl_txq_ctx_activate(struct iwl_priv *priv, int txq_id)
1367 set_bit(txq_id, &priv->txq_ctx_active_msk);
1370 static inline void iwl_txq_ctx_deactivate(struct iwl_priv *priv, int txq_id)
1372 clear_bit(txq_id, &priv->txq_ctx_active_msk);
1375 #ifdef CONFIG_IWLWIFI_DEBUG
1376 const char *iwl_get_tx_fail_reason(u32 status);
1378 * iwl_get_debug_level: Return active debug level for device
1380 * Using sysfs it is possible to set per device debug level. This debug
1381 * level will be used if set, otherwise the global debug level which can be
1382 * set via module parameter is used.
1384 static inline u32 iwl_get_debug_level(struct iwl_priv *priv)
1386 if (priv->debug_level)
1387 return priv->debug_level;
1389 return iwl_debug_level;
1392 static inline const char *iwl_get_tx_fail_reason(u32 status) { return ""; }
1394 static inline u32 iwl_get_debug_level(struct iwl_priv *priv)
1396 return iwl_debug_level;
1401 static inline struct ieee80211_hdr *iwl_tx_queue_get_hdr(struct iwl_priv *priv,
1402 int txq_id, int idx)
1404 if (priv->txq[txq_id].txb[idx].skb[0])
1405 return (struct ieee80211_hdr *)priv->txq[txq_id].
1406 txb[idx].skb[0]->data;
1411 static inline int iwl_is_associated(struct iwl_priv *priv)
1413 return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
1416 static inline int is_channel_valid(const struct iwl_channel_info *ch_info)
1418 if (ch_info == NULL)
1420 return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
1423 static inline int is_channel_radar(const struct iwl_channel_info *ch_info)
1425 return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
1428 static inline u8 is_channel_a_band(const struct iwl_channel_info *ch_info)
1430 return ch_info->band == IEEE80211_BAND_5GHZ;
1433 static inline u8 is_channel_bg_band(const struct iwl_channel_info *ch_info)
1435 return ch_info->band == IEEE80211_BAND_2GHZ;
1438 static inline int is_channel_passive(const struct iwl_channel_info *ch)
1440 return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
1443 static inline int is_channel_ibss(const struct iwl_channel_info *ch)
1445 return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
1448 static inline void __iwl_free_pages(struct iwl_priv *priv, struct page *page)
1450 __free_pages(page, priv->hw_params.rx_page_order);
1451 priv->alloc_rxb_page--;
1454 static inline void iwl_free_pages(struct iwl_priv *priv, unsigned long page)
1456 free_pages(page, priv->hw_params.rx_page_order);
1457 priv->alloc_rxb_page--;
1459 #endif /* __iwl_dev_h__ */