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 iwl6000g2a_2abg_cfg;
62 extern struct iwl_cfg iwl6000g2a_2bg_cfg;
63 extern struct iwl_cfg iwl6000g2b_bgn_cfg;
64 extern struct iwl_cfg iwl6000g2b_bg_cfg;
65 extern struct iwl_cfg iwl6000g2b_2agn_cfg;
66 extern struct iwl_cfg iwl6000g2b_2abg_cfg;
67 extern struct iwl_cfg iwl6000g2b_2bg_cfg;
68 extern struct iwl_cfg iwl6000i_2agn_cfg;
69 extern struct iwl_cfg iwl6000i_2abg_cfg;
70 extern struct iwl_cfg iwl6000i_2bg_cfg;
71 extern struct iwl_cfg iwl6000_3agn_cfg;
72 extern struct iwl_cfg iwl6050_2agn_cfg;
73 extern struct iwl_cfg iwl6050_2abg_cfg;
74 extern struct iwl_cfg iwl1000_bgn_cfg;
75 extern struct iwl_cfg iwl1000_bg_cfg;
79 /* CT-KILL constants */
80 #define CT_KILL_THRESHOLD_LEGACY 110 /* in Celsius */
81 #define CT_KILL_THRESHOLD 114 /* in Celsius */
82 #define CT_KILL_EXIT_THRESHOLD 95 /* in Celsius */
84 /* Default noise level to report when noise measurement is not available.
85 * This may be because we're:
86 * 1) Not associated (4965, no beacon statistics being sent to driver)
87 * 2) Scanning (noise measurement does not apply to associated channel)
88 * 3) Receiving CCK (3945 delivers noise info only for OFDM frames)
89 * Use default noise value of -127 ... this is below the range of measurable
90 * Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
91 * Also, -127 works better than 0 when averaging frames with/without
92 * noise info (e.g. averaging might be done in app); measured dBm values are
93 * always negative ... using a negative value as the default keeps all
94 * averages within an s8's (used in some apps) range of negative values. */
95 #define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
98 * RTS threshold here is total size [2347] minus 4 FCS bytes
100 * a value of 0 means RTS on all data/management packets
101 * a value > max MSDU size means no RTS
102 * else RTS for data/management frames where MPDU is larger
105 #define DEFAULT_RTS_THRESHOLD 2347U
106 #define MIN_RTS_THRESHOLD 0U
107 #define MAX_RTS_THRESHOLD 2347U
108 #define MAX_MSDU_SIZE 2304U
109 #define MAX_MPDU_SIZE 2346U
110 #define DEFAULT_BEACON_INTERVAL 100U
111 #define DEFAULT_SHORT_RETRY_LIMIT 7U
112 #define DEFAULT_LONG_RETRY_LIMIT 4U
114 struct iwl_rx_mem_buffer {
117 struct list_head list;
120 #define rxb_addr(r) page_address(r->page)
123 struct iwl_device_cmd;
125 struct iwl_cmd_meta {
126 /* only for SYNC commands, iff the reply skb is wanted */
127 struct iwl_host_cmd *source;
129 * only for ASYNC commands
130 * (which is somewhat stupid -- look at iwl-sta.c for instance
131 * which duplicates a bunch of code because the callback isn't
132 * invoked for SYNC commands, if it were and its result passed
133 * through it would be simpler...)
135 void (*callback)(struct iwl_priv *priv,
136 struct iwl_device_cmd *cmd,
137 struct iwl_rx_packet *pkt);
139 /* The CMD_SIZE_HUGE flag bit indicates that the command
140 * structure is stored at the end of the shared queue memory. */
143 DECLARE_PCI_UNMAP_ADDR(mapping)
144 DECLARE_PCI_UNMAP_LEN(len)
148 * Generic queue structure
150 * Contains common data for Rx and Tx queues
153 int n_bd; /* number of BDs in this queue */
154 int write_ptr; /* 1-st empty entry (index) host_w*/
155 int read_ptr; /* last used entry (index) host_r*/
156 /* use for monitoring and recovering the stuck queue */
157 int last_read_ptr; /* storing the last read_ptr */
158 /* number of time read_ptr and last_read_ptr are the same */
159 u8 repeat_same_read_ptr;
160 dma_addr_t dma_addr; /* physical addr for BD's */
161 int n_window; /* safe queue window */
163 int low_mark; /* low watermark, resume queue if free
164 * space more than this */
165 int high_mark; /* high watermark, stop queue if free
166 * space less than this */
167 } __attribute__ ((packed));
169 /* One for each TFD */
171 struct sk_buff *skb[IWL_NUM_OF_TBS - 1];
175 * struct iwl_tx_queue - Tx Queue for DMA
176 * @q: generic Rx/Tx queue descriptor
177 * @bd: base of circular buffer of TFDs
178 * @cmd: array of command/TX buffer pointers
179 * @meta: array of meta data for each command/tx buffer
180 * @dma_addr_cmd: physical address of cmd/tx buffer array
181 * @txb: array of per-TFD driver data
182 * @need_update: indicates need to update read/write index
183 * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
185 * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
186 * descriptors) and required locking structures.
188 #define TFD_TX_CMD_SLOTS 256
189 #define TFD_CMD_SLOTS 32
191 struct iwl_tx_queue {
194 struct iwl_device_cmd **cmd;
195 struct iwl_cmd_meta *meta;
196 struct iwl_tx_info *txb;
203 #define IWL_NUM_SCAN_RATES (2)
205 struct iwl4965_channel_tgd_info {
210 struct iwl4965_channel_tgh_info {
214 #define IWL4965_MAX_RATE (33)
216 struct iwl3945_clip_group {
217 /* maximum power level to prevent clipping for each rate, derived by
218 * us from this band's saturation power in EEPROM */
219 const s8 clip_powers[IWL_MAX_RATES];
222 /* current Tx power values to use, one for each rate for each channel.
223 * requested power is limited by:
224 * -- regulatory EEPROM limits for this channel
225 * -- hardware capabilities (clip-powers)
226 * -- spectrum management
227 * -- user preference (e.g. iwconfig)
228 * when requested power is set, base power index must also be set. */
229 struct iwl3945_channel_power_info {
230 struct iwl3945_tx_power tpc; /* actual radio and DSP gain settings */
231 s8 power_table_index; /* actual (compenst'd) index into gain table */
232 s8 base_power_index; /* gain index for power at factory temp. */
233 s8 requested_power; /* power (dBm) requested for this chnl/rate */
236 /* current scan Tx power values to use, one for each scan rate for each
238 struct iwl3945_scan_power_info {
239 struct iwl3945_tx_power tpc; /* actual radio and DSP gain settings */
240 s8 power_table_index; /* actual (compenst'd) index into gain table */
241 s8 requested_power; /* scan pwr (dBm) requested for chnl/rate */
245 * One for each channel, holds all channel setup data
246 * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
249 struct iwl_channel_info {
250 struct iwl4965_channel_tgd_info tgd;
251 struct iwl4965_channel_tgh_info tgh;
252 struct iwl_eeprom_channel eeprom; /* EEPROM regulatory limit */
253 struct iwl_eeprom_channel ht40_eeprom; /* EEPROM regulatory limit for
256 u8 channel; /* channel number */
257 u8 flags; /* flags copied from EEPROM */
258 s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
259 s8 curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) limit */
260 s8 min_power; /* always 0 */
261 s8 scan_power; /* (dBm) regul. eeprom, direct scans, any rate */
263 u8 group_index; /* 0-4, maps channel to group1/2/3/4/5 */
264 u8 band_index; /* 0-4, maps channel to band1/2/3/4/5 */
265 enum ieee80211_band band;
267 /* HT40 channel info */
268 s8 ht40_max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
269 u8 ht40_flags; /* flags copied from EEPROM */
270 u8 ht40_extension_channel; /* HT_IE_EXT_CHANNEL_* */
272 /* Radio/DSP gain settings for each "normal" data Tx rate.
273 * These include, in addition to RF and DSP gain, a few fields for
274 * remembering/modifying gain settings (indexes). */
275 struct iwl3945_channel_power_info power_info[IWL4965_MAX_RATE];
277 /* Radio/DSP gain settings for each scan rate, for directed scans. */
278 struct iwl3945_scan_power_info scan_pwr_info[IWL_NUM_SCAN_RATES];
281 #define IWL_TX_FIFO_BK 0
282 #define IWL_TX_FIFO_BE 1
283 #define IWL_TX_FIFO_VI 2
284 #define IWL_TX_FIFO_VO 3
285 #define IWL_TX_FIFO_UNUSED -1
287 /* Minimum number of queues. MAX_NUM is defined in hw specific files.
288 * Set the minimum to accommodate the 4 standard TX queues, 1 command
289 * queue, 2 (unused) HCCA queues, and 4 HT queues (one for each AC) */
290 #define IWL_MIN_NUM_QUEUES 10
293 * Queue #4 is the command queue for 3945/4965/5x00/1000/6x00,
294 * the driver maps it into the appropriate device FIFO for the
297 #define IWL_CMD_QUEUE_NUM 4
299 /* Power management (not Tx power) structures */
306 #define IEEE80211_DATA_LEN 2304
307 #define IEEE80211_4ADDR_LEN 30
308 #define IEEE80211_HLEN (IEEE80211_4ADDR_LEN)
309 #define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
313 struct ieee80211_hdr frame;
314 struct iwl_tx_beacon_cmd beacon;
315 u8 raw[IEEE80211_FRAME_LEN];
318 struct list_head list;
321 #define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
322 #define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
323 #define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
329 CMD_SIZE_HUGE = (1 << 0),
330 CMD_ASYNC = (1 << 1),
331 CMD_WANT_SKB = (1 << 2),
334 #define DEF_CMD_PAYLOAD_SIZE 320
337 * struct iwl_device_cmd
339 * For allocation of the command and tx queues, this establishes the overall
340 * size of the largest command we send to uCode, except for a scan command
341 * (which is relatively huge; space is allocated separately).
343 struct iwl_device_cmd {
344 struct iwl_cmd_header hdr; /* uCode API */
350 struct iwl_tx_cmd tx;
351 struct iwl6000_channel_switch_cmd chswitch;
352 u8 payload[DEF_CMD_PAYLOAD_SIZE];
353 } __attribute__ ((packed)) cmd;
354 } __attribute__ ((packed));
356 #define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_device_cmd))
359 struct iwl_host_cmd {
361 unsigned long reply_page;
362 void (*callback)(struct iwl_priv *priv,
363 struct iwl_device_cmd *cmd,
364 struct iwl_rx_packet *pkt);
370 #define SUP_RATE_11A_MAX_NUM_CHANNELS 8
371 #define SUP_RATE_11B_MAX_NUM_CHANNELS 4
372 #define SUP_RATE_11G_MAX_NUM_CHANNELS 12
375 * struct iwl_rx_queue - Rx queue
376 * @bd: driver's pointer to buffer of receive buffer descriptors (rbd)
377 * @dma_addr: bus address of buffer of receive buffer descriptors (rbd)
378 * @read: Shared index to newest available Rx buffer
379 * @write: Shared index to oldest written Rx packet
380 * @free_count: Number of pre-allocated buffers in rx_free
381 * @rx_free: list of free SKBs for use
382 * @rx_used: List of Rx buffers with no SKB
383 * @need_update: flag to indicate we need to update read/write index
384 * @rb_stts: driver's pointer to receive buffer status
385 * @rb_stts_dma: bus address of receive buffer status
387 * NOTE: rx_free and rx_used are used as a FIFO for iwl_rx_mem_buffers
389 struct iwl_rx_queue {
392 struct iwl_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
393 struct iwl_rx_mem_buffer *queue[RX_QUEUE_SIZE];
398 struct list_head rx_free;
399 struct list_head rx_used;
401 struct iwl_rb_status *rb_stts;
402 dma_addr_t rb_stts_dma;
406 #define IWL_SUPPORTED_RATES_IE_LEN 8
408 #define MAX_TID_COUNT 9
410 #define IWL_INVALID_RATE 0xFF
411 #define IWL_INVALID_VALUE -1
414 * struct iwl_ht_agg -- aggregation status while waiting for block-ack
415 * @txq_id: Tx queue used for Tx attempt
416 * @frame_count: # frames attempted by Tx command
417 * @wait_for_ba: Expect block-ack before next Tx reply
418 * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window
419 * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window
420 * @bitmap1: High order, one bit for each frame pending ACK in Tx window
421 * @rate_n_flags: Rate at which Tx was attempted
423 * If REPLY_TX indicates that aggregation was attempted, driver must wait
424 * for block ack (REPLY_COMPRESSED_BA). This struct stores tx reply info
425 * until block ack arrives.
434 #define IWL_AGG_OFF 0
436 #define IWL_EMPTYING_HW_QUEUE_ADDBA 2
437 #define IWL_EMPTYING_HW_QUEUE_DELBA 3
442 struct iwl_tid_data {
443 u16 seq_number; /* agn only */
445 struct iwl_ht_agg agg;
449 enum ieee80211_key_alg alg;
455 union iwl_ht_rate_supp {
463 #define CFG_HT_RX_AMPDU_FACTOR_DEF (0x3)
466 * Maximal MPDU density for TX aggregation
472 #define CFG_HT_MPDU_DENSITY_4USEC (0x5)
473 #define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_4USEC
475 struct iwl_ht_config {
476 /* self configuration data */
479 bool single_chain_sufficient;
480 enum ieee80211_smps_mode smps; /* current smps mode */
481 /* BSS related data */
482 u8 extension_chan_offset;
484 u8 non_GF_STA_present;
488 struct iwl_qos_info {
490 struct iwl_qosparam_cmd def_qos_parm;
494 * Structure should be accessed with sta_lock held. When station addition
495 * is in progress (IWL_STA_UCODE_INPROGRESS) it is possible to access only
496 * the commands (iwl_addsta_cmd and iwl_link_quality_cmd) without sta_lock
499 struct iwl_station_entry {
500 struct iwl_addsta_cmd sta;
501 struct iwl_tid_data tid[MAX_TID_COUNT];
503 struct iwl_hw_key keyinfo;
504 struct iwl_link_quality_cmd *lq;
507 struct iwl_station_priv_common {
512 * iwl_station_priv: Driver's private station information
514 * When mac80211 creates a station it reserves some space (hw->sta_data_size)
515 * in the structure for use by driver. This structure is places in that
518 * The common struct MUST be first because it is shared between
521 struct iwl_station_priv {
522 struct iwl_station_priv_common common;
523 struct iwl_lq_sta lq_sta;
524 atomic_t pending_frames;
530 * struct iwl_vif_priv - driver's private per-interface information
532 * When mac80211 allocates a virtual interface, it can allocate
533 * space for us to put data into.
535 struct iwl_vif_priv {
536 u8 ibss_bssid_sta_id;
539 /* one for each uCode image (inst/data, boot/init/runtime) */
541 void *v_addr; /* access by driver */
542 dma_addr_t p_addr; /* access by card's busmaster DMA */
546 /* v1/v2 uCode file layout */
547 struct iwl_ucode_header {
548 __le32 ver; /* major/minor/API/serial */
551 __le32 inst_size; /* bytes of runtime code */
552 __le32 data_size; /* bytes of runtime data */
553 __le32 init_size; /* bytes of init code */
554 __le32 init_data_size; /* bytes of init data */
555 __le32 boot_size; /* bytes of bootstrap code */
556 u8 data[0]; /* in same order as sizes */
559 __le32 build; /* build number */
560 __le32 inst_size; /* bytes of runtime code */
561 __le32 data_size; /* bytes of runtime data */
562 __le32 init_size; /* bytes of init code */
563 __le32 init_data_size; /* bytes of init data */
564 __le32 boot_size; /* bytes of bootstrap code */
565 u8 data[0]; /* in same order as sizes */
571 * new TLV uCode file layout
573 * The new TLV file format contains TLVs, that each specify
574 * some piece of data. To facilitate "groups", for example
575 * different instruction image with different capabilities,
576 * bundled with the same init image, an alternative mechanism
578 * When the alternative field is 0, that means that the item
579 * is always valid. When it is non-zero, then it is only
580 * valid in conjunction with items of the same alternative,
581 * in which case the driver (user) selects one alternative
585 enum iwl_ucode_tlv_type {
586 IWL_UCODE_TLV_INVALID = 0, /* unused */
587 IWL_UCODE_TLV_INST = 1,
588 IWL_UCODE_TLV_DATA = 2,
589 IWL_UCODE_TLV_INIT = 3,
590 IWL_UCODE_TLV_INIT_DATA = 4,
591 IWL_UCODE_TLV_BOOT = 5,
592 IWL_UCODE_TLV_PROBE_MAX_LEN = 6, /* a u32 value */
593 IWL_UCODE_TLV_RUNT_EVTLOG_PTR = 8,
594 IWL_UCODE_TLV_RUNT_EVTLOG_SIZE = 9,
595 IWL_UCODE_TLV_RUNT_ERRLOG_PTR = 10,
596 IWL_UCODE_TLV_INIT_EVTLOG_PTR = 11,
597 IWL_UCODE_TLV_INIT_EVTLOG_SIZE = 12,
598 IWL_UCODE_TLV_INIT_ERRLOG_PTR = 13,
601 struct iwl_ucode_tlv {
602 __le16 type; /* see above */
603 __le16 alternative; /* see comment */
604 __le32 length; /* not including type/length fields */
606 } __attribute__ ((packed));
608 #define IWL_TLV_UCODE_MAGIC 0x0a4c5749
610 struct iwl_tlv_ucode_header {
612 * The TLV style ucode header is distinguished from
613 * the v1/v2 style header by first four bytes being
614 * zero, as such is an invalid combination of
615 * major/minor/API/serial versions.
619 u8 human_readable[64];
620 __le32 ver; /* major/minor/API/serial */
622 __le64 alternatives; /* bitmask of valid alternatives */
624 * The data contained herein has a TLV layout,
625 * see above for the TLV header and types.
626 * Note that each TLV is padded to a length
627 * that is a multiple of 4 for alignment.
632 struct iwl4965_ibss_seq {
636 unsigned long packet_time;
637 struct list_head list;
640 struct iwl_sensitivity_ranges {
647 u16 auto_corr_min_ofdm;
648 u16 auto_corr_min_ofdm_mrc;
649 u16 auto_corr_min_ofdm_x1;
650 u16 auto_corr_min_ofdm_mrc_x1;
652 u16 auto_corr_max_ofdm;
653 u16 auto_corr_max_ofdm_mrc;
654 u16 auto_corr_max_ofdm_x1;
655 u16 auto_corr_max_ofdm_mrc_x1;
657 u16 auto_corr_max_cck;
658 u16 auto_corr_max_cck_mrc;
659 u16 auto_corr_min_cck;
660 u16 auto_corr_min_cck_mrc;
662 u16 barker_corr_th_min;
663 u16 barker_corr_th_min_mrc;
668 #define KELVIN_TO_CELSIUS(x) ((x)-273)
669 #define CELSIUS_TO_KELVIN(x) ((x)+273)
673 * struct iwl_hw_params
674 * @max_txq_num: Max # Tx queues supported
675 * @dma_chnl_num: Number of Tx DMA/FIFO channels
676 * @scd_bc_tbls_size: size of scheduler byte count tables
677 * @tfd_size: TFD size
678 * @tx/rx_chains_num: Number of TX/RX chains
679 * @valid_tx/rx_ant: usable antennas
680 * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
681 * @max_rxq_log: Log-base-2 of max_rxq_size
682 * @rx_page_order: Rx buffer page order
683 * @rx_wrt_ptr_reg: FH{39}_RSCSR_CHNL0_WPTR
686 * @ht40_channel: is 40MHz width possible in band 2.4
687 * BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ)
688 * @sw_crypto: 0 for hw, 1 for sw
689 * @max_xxx_size: for ucode uses
690 * @ct_kill_threshold: temperature threshold
691 * @calib_init_cfg: setup initial calibrations for the hw
692 * @struct iwl_sensitivity_ranges: range of sensitivity values
694 struct iwl_hw_params {
697 u16 scd_bc_tbls_size;
710 u8 max_beacon_itrvl; /* in 1024 ms */
714 u32 ct_kill_threshold; /* value in hw-dependent units */
715 u32 ct_kill_exit_threshold; /* value in hw-dependent units */
716 /* for 1000, 6000 series and up */
718 const struct iwl_sensitivity_ranges *sens;
722 /******************************************************************************
724 * Functions implemented in core module which are forward declared here
725 * for use by iwl-[4-5].c
727 * NOTE: The implementation of these functions are not hardware specific
728 * which is why they are in the core module files.
730 * Naming convention --
731 * iwl_ <-- Is part of iwlwifi
732 * iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
733 * iwl4965_bg_ <-- Called from work queue context
734 * iwl4965_mac_ <-- mac80211 callback
736 ****************************************************************************/
737 extern void iwl_update_chain_flags(struct iwl_priv *priv);
738 extern int iwl_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src);
739 extern const u8 iwl_bcast_addr[ETH_ALEN];
740 extern int iwl_rxq_stop(struct iwl_priv *priv);
741 extern void iwl_txq_ctx_stop(struct iwl_priv *priv);
742 extern int iwl_queue_space(const struct iwl_queue *q);
743 static inline int iwl_queue_used(const struct iwl_queue *q, int i)
745 return q->write_ptr >= q->read_ptr ?
746 (i >= q->read_ptr && i < q->write_ptr) :
747 !(i < q->read_ptr && i >= q->write_ptr);
751 static inline u8 get_cmd_index(struct iwl_queue *q, u32 index, int is_huge)
754 * This is for init calibration result and scan command which
755 * required buffer > TFD_MAX_PAYLOAD_SIZE,
756 * the big buffer at end of command array
759 return q->n_window; /* must be power of 2 */
761 /* Otherwise, use normal size buffers */
762 return index & (q->n_window - 1);
772 #define IWL_OPERATION_MODE_AUTO 0
773 #define IWL_OPERATION_MODE_HT_ONLY 1
774 #define IWL_OPERATION_MODE_MIXED 2
775 #define IWL_OPERATION_MODE_20MHZ 3
777 #define IWL_TX_CRC_SIZE 4
778 #define IWL_TX_DELIMITER_SIZE 4
780 #define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
782 /* Sensitivity and chain noise calibration */
783 #define INITIALIZATION_VALUE 0xFFFF
784 #define IWL4965_CAL_NUM_BEACONS 20
785 #define IWL_CAL_NUM_BEACONS 16
786 #define MAXIMUM_ALLOWED_PATHLOSS 15
788 #define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
790 #define MAX_FA_OFDM 50
791 #define MIN_FA_OFDM 5
792 #define MAX_FA_CCK 50
795 #define AUTO_CORR_STEP_OFDM 1
797 #define AUTO_CORR_STEP_CCK 3
798 #define AUTO_CORR_MAX_TH_CCK 160
801 #define NRG_STEP_CCK 2
803 #define MAX_NUMBER_CCK_NO_FA 100
805 #define AUTO_CORR_CCK_MIN_VAL_DEF (125)
810 #define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
811 #define ALL_BAND_FILTER 0xFF00
812 #define IN_BAND_FILTER 0xFF
813 #define MIN_AVERAGE_NOISE_MAX_VALUE 0xFFFFFFFF
815 #define NRG_NUM_PREV_STAT_L 20
816 #define NUM_RX_CHAINS 3
818 enum iwl4965_false_alarm_state {
821 IWL_FA_GOOD_RANGE = 2,
824 enum iwl4965_chain_noise_state {
825 IWL_CHAIN_NOISE_ALIVE = 0, /* must be 0 */
826 IWL_CHAIN_NOISE_ACCUMULATE,
827 IWL_CHAIN_NOISE_CALIBRATED,
828 IWL_CHAIN_NOISE_DONE,
831 enum iwl4965_calib_enabled_state {
832 IWL_CALIB_DISABLED = 0, /* must be 0 */
833 IWL_CALIB_ENABLED = 1,
839 * defines the order in which results of initial calibrations
840 * should be sent to the runtime uCode
847 IWL_CALIB_TX_IQ_PERD,
852 /* Opaque calibration results */
853 struct iwl_calib_result {
864 /* Sensitivity calib data */
865 struct iwl_sensitivity_data {
867 u32 auto_corr_ofdm_mrc;
868 u32 auto_corr_ofdm_x1;
869 u32 auto_corr_ofdm_mrc_x1;
871 u32 auto_corr_cck_mrc;
873 u32 last_bad_plcp_cnt_ofdm;
874 u32 last_fa_cnt_ofdm;
875 u32 last_bad_plcp_cnt_cck;
881 u8 nrg_silence_rssi[NRG_NUM_PREV_STAT_L];
886 s32 nrg_auto_corr_silence_diff;
887 u32 num_in_cck_no_fa;
890 u16 barker_corr_th_min;
891 u16 barker_corr_th_min_mrc;
895 /* Chain noise (differential Rx gain) calib data */
896 struct iwl_chain_noise_data {
905 u8 disconn_array[NUM_RX_CHAINS];
906 u8 delta_gain_code[NUM_RX_CHAINS];
911 #define EEPROM_SEM_TIMEOUT 10 /* milliseconds */
912 #define EEPROM_SEM_RETRY_LIMIT 1000 /* number of attempts (not time) */
914 #define IWL_TRAFFIC_ENTRIES (256)
915 #define IWL_TRAFFIC_ENTRY_SIZE (64)
918 MEASUREMENT_READY = (1 << 0),
919 MEASUREMENT_ACTIVE = (1 << 1),
923 NVM_DEVICE_TYPE_EEPROM = 0,
928 * Two types of OTP memory access modes
929 * IWL_OTP_ACCESS_ABSOLUTE - absolute address mode,
930 * based on physical memory addressing
931 * IWL_OTP_ACCESS_RELATIVE - relative address mode,
932 * based on logical memory addressing
934 enum iwl_access_mode {
935 IWL_OTP_ACCESS_ABSOLUTE,
936 IWL_OTP_ACCESS_RELATIVE,
940 * enum iwl_pa_type - Power Amplifier type
941 * @IWL_PA_SYSTEM: based on uCode configuration
942 * @IWL_PA_INTERNAL: use Internal only
949 /* interrupt statistics */
950 struct isr_statistics {
960 u32 rx_handlers[REPLY_MAX];
965 #ifdef CONFIG_IWLWIFI_DEBUGFS
966 /* management statistics */
967 enum iwl_mgmt_stats {
968 MANAGEMENT_ASSOC_REQ = 0,
969 MANAGEMENT_ASSOC_RESP,
970 MANAGEMENT_REASSOC_REQ,
971 MANAGEMENT_REASSOC_RESP,
972 MANAGEMENT_PROBE_REQ,
973 MANAGEMENT_PROBE_RESP,
982 /* control statistics */
983 enum iwl_ctrl_stats {
984 CONTROL_BACK_REQ = 0,
995 struct traffic_stats {
996 u32 mgmt[MANAGEMENT_MAX];
997 u32 ctrl[CONTROL_MAX];
1002 struct traffic_stats {
1008 * iwl_switch_rxon: "channel switch" structure
1010 * @ switch_in_progress: channel switch in progress
1011 * @ channel: new channel
1013 struct iwl_switch_rxon {
1014 bool switch_in_progress;
1019 * schedule the timer to wake up every UCODE_TRACE_PERIOD milliseconds
1020 * to perform continuous uCode event logging operation if enabled
1022 #define UCODE_TRACE_PERIOD (100)
1025 * iwl_event_log: current uCode event log position
1027 * @ucode_trace: enable/disable ucode continuous trace timer
1028 * @num_wraps: how many times the event buffer wraps
1029 * @next_entry: the entry just before the next one that uCode would fill
1030 * @non_wraps_count: counter for no wrap detected when dump ucode events
1031 * @wraps_once_count: counter for wrap once detected when dump ucode events
1032 * @wraps_more_count: counter for wrap more than once detected
1033 * when dump ucode events
1035 struct iwl_event_log {
1039 int non_wraps_count;
1040 int wraps_once_count;
1041 int wraps_more_count;
1045 * host interrupt timeout value
1046 * used with setting interrupt coalescing timer
1047 * the CSR_INT_COALESCING is an 8 bit register in 32-usec unit
1049 * default interrupt coalescing timer is 64 x 32 = 2048 usecs
1050 * default interrupt coalescing calibration timer is 16 x 32 = 512 usecs
1052 #define IWL_HOST_INT_TIMEOUT_MAX (0xFF)
1053 #define IWL_HOST_INT_TIMEOUT_DEF (0x40)
1054 #define IWL_HOST_INT_TIMEOUT_MIN (0x0)
1055 #define IWL_HOST_INT_CALIB_TIMEOUT_MAX (0xFF)
1056 #define IWL_HOST_INT_CALIB_TIMEOUT_DEF (0x10)
1057 #define IWL_HOST_INT_CALIB_TIMEOUT_MIN (0x0)
1060 * This is the threshold value of plcp error rate per 100mSecs. It is
1061 * used to set and check for the validity of plcp_delta.
1063 #define IWL_MAX_PLCP_ERR_THRESHOLD_MIN (0)
1064 #define IWL_MAX_PLCP_ERR_THRESHOLD_DEF (50)
1065 #define IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF (100)
1066 #define IWL_MAX_PLCP_ERR_EXT_LONG_THRESHOLD_DEF (200)
1067 #define IWL_MAX_PLCP_ERR_THRESHOLD_MAX (255)
1069 #define IWL_DELAY_NEXT_FORCE_RF_RESET (HZ*3)
1070 #define IWL_DELAY_NEXT_FORCE_FW_RELOAD (HZ*5)
1072 /* timer constants use to monitor and recover stuck tx queues in mSecs */
1073 #define IWL_MONITORING_PERIOD (1000)
1074 #define IWL_ONE_HUNDRED_MSECS (100)
1075 #define IWL_SIXTY_SECS (60000)
1080 IWL_MAX_FORCE_RESET,
1083 struct iwl_force_reset {
1084 int reset_request_count;
1085 int reset_success_count;
1086 int reset_reject_count;
1087 unsigned long reset_duration;
1088 unsigned long last_force_reset_jiffies;
1093 /* ieee device used by generic ieee processing code */
1094 struct ieee80211_hw *hw;
1095 struct ieee80211_channel *ieee_channels;
1096 struct ieee80211_rate *ieee_rates;
1097 struct iwl_cfg *cfg;
1099 /* temporary frame storage list */
1100 struct list_head free_frames;
1103 enum ieee80211_band band;
1106 void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv,
1107 struct iwl_rx_mem_buffer *rxb);
1109 struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
1111 /* spectrum measurement report caching */
1112 struct iwl_spectrum_notification measure_report;
1113 u8 measurement_status;
1115 /* ucode beacon time */
1116 u32 ucode_beacon_time;
1117 int missed_beacon_threshold;
1119 /* storing the jiffies when the plcp error rate is received */
1120 unsigned long plcp_jiffies;
1123 struct iwl_force_reset force_reset[IWL_MAX_FORCE_RESET];
1125 /* we allocate array of iwl4965_channel_info for NIC's valid channels.
1126 * Access via channel # using indirect index array */
1127 struct iwl_channel_info *channel_info; /* channel info array */
1128 u8 channel_count; /* # of channels */
1130 /* thermal calibration */
1131 s32 temperature; /* degrees Kelvin */
1132 s32 last_temperature;
1134 /* init calibration results */
1135 struct iwl_calib_result calib_results[IWL_CALIB_MAX];
1137 /* Scan related variables */
1138 unsigned long scan_start;
1139 unsigned long scan_start_tsf;
1141 enum ieee80211_band scan_band;
1142 struct cfg80211_scan_request *scan_request;
1143 bool is_internal_short_scan;
1144 u8 scan_tx_ant[IEEE80211_NUM_BANDS];
1148 spinlock_t lock; /* protect general shared data */
1149 spinlock_t hcmd_lock; /* protect hcmd */
1150 spinlock_t reg_lock; /* protect hw register access */
1152 struct mutex sync_cmd_mutex; /* enable serialization of sync commands */
1154 /* basic pci-network driver stuff */
1155 struct pci_dev *pci_dev;
1157 /* pci hardware address support */
1158 void __iomem *hw_base;
1163 /* uCode images, save to reload in case of failure */
1164 int fw_index; /* firmware we're trying to load */
1165 u32 ucode_ver; /* version of ucode, copy of
1167 struct fw_desc ucode_code; /* runtime inst */
1168 struct fw_desc ucode_data; /* runtime data original */
1169 struct fw_desc ucode_data_backup; /* runtime data save/restore */
1170 struct fw_desc ucode_init; /* initialization inst */
1171 struct fw_desc ucode_init_data; /* initialization data */
1172 struct fw_desc ucode_boot; /* bootstrap inst */
1173 enum ucode_type ucode_type;
1174 u8 ucode_write_complete; /* the image write is complete */
1175 char firmware_name[25];
1178 struct iwl_rxon_time_cmd rxon_timing;
1180 /* We declare this const so it can only be
1181 * changed via explicit cast within the
1182 * routines that actually update the physical
1184 const struct iwl_rxon_cmd active_rxon;
1185 struct iwl_rxon_cmd staging_rxon;
1187 struct iwl_switch_rxon switch_rxon;
1189 /* 1st responses from initialize and runtime uCode images.
1190 * 4965's initialize alive response contains some calibration data. */
1191 struct iwl_init_alive_resp card_alive_init;
1192 struct iwl_alive_resp card_alive;
1194 unsigned long last_blink_time;
1202 struct iwl_sensitivity_data sensitivity_data;
1203 struct iwl_chain_noise_data chain_noise_data;
1204 __le16 sensitivity_tbl[HD_TABLE_SIZE];
1206 struct iwl_ht_config current_ht_config;
1208 /* Rate scaling data */
1211 wait_queue_head_t wait_command_queue;
1213 int activity_timer_active;
1215 /* Rx and Tx DMA processing queues */
1216 struct iwl_rx_queue rxq;
1217 struct iwl_tx_queue *txq;
1218 unsigned long txq_ctx_active_msk;
1219 struct iwl_dma_ptr kw; /* keep warm address */
1220 struct iwl_dma_ptr scd_bc_tbls;
1222 u32 scd_base_addr; /* scheduler sram base address */
1224 unsigned long status;
1226 /* counts mgmt, ctl, and data packets */
1227 struct traffic_stats tx_stats;
1228 struct traffic_stats rx_stats;
1230 /* counts interrupts */
1231 struct isr_statistics isr_stats;
1233 struct iwl_power_mgr power_data;
1234 struct iwl_tt_mgmt thermal_throttle;
1236 /* context information */
1237 u8 bssid[ETH_ALEN]; /* used only on 3945 but filled by core */
1238 u8 mac_addr[ETH_ALEN];
1240 /* station table variables */
1242 /* Note: if lock and sta_lock are needed, lock must be acquired first */
1243 spinlock_t sta_lock;
1245 struct iwl_station_entry stations[IWL_STATION_COUNT];
1246 struct iwl_wep_key wep_keys[WEP_KEYS_MAX]; /* protected by mutex */
1248 unsigned long ucode_key_table;
1250 /* queue refcounts */
1251 #define IWL_MAX_HW_QUEUES 32
1252 unsigned long queue_stopped[BITS_TO_LONGS(IWL_MAX_HW_QUEUES)];
1254 atomic_t queue_stop_count[4];
1256 /* Indication if ieee80211_ops->open has been called */
1259 u8 mac80211_registered;
1261 /* eeprom -- this is in the card's little endian byte order */
1263 int nvm_device_type;
1264 struct iwl_eeprom_calib_info *calib_info;
1266 enum nl80211_iftype iw_mode;
1268 struct sk_buff *ibss_beacon;
1270 /* Last Rx'd beacon timestamp */
1272 struct ieee80211_vif *vif;
1275 #if defined(CONFIG_IWL3945) || defined(CONFIG_IWL3945_MODULE)
1278 dma_addr_t shared_phys;
1280 struct delayed_work thermal_periodic;
1281 struct delayed_work rfkill_poll;
1283 struct iwl3945_notif_statistics statistics;
1284 #ifdef CONFIG_IWLWIFI_DEBUG
1285 struct iwl3945_notif_statistics accum_statistics;
1286 struct iwl3945_notif_statistics delta_statistics;
1287 struct iwl3945_notif_statistics max_delta;
1291 int last_rx_rssi; /* From Rx packet statistics */
1293 /* Rx'd packet timing information */
1294 u32 last_beacon_time;
1298 * each calibration channel group in the
1299 * EEPROM has a derived clip setting for
1302 const struct iwl3945_clip_group clip_groups[5];
1306 #if defined(CONFIG_IWLAGN) || defined(CONFIG_IWLAGN_MODULE)
1311 dma_addr_t ict_tbl_dma;
1312 dma_addr_t aligned_ict_tbl_dma;
1317 * reporting the number of tids has AGG on. 0 means
1322 struct iwl_rx_phy_res last_phy_res;
1323 bool last_phy_res_valid;
1325 struct completion firmware_loading_complete;
1327 struct iwl_notif_statistics statistics;
1328 #ifdef CONFIG_IWLWIFI_DEBUG
1329 struct iwl_notif_statistics accum_statistics;
1330 struct iwl_notif_statistics delta_statistics;
1331 struct iwl_notif_statistics max_delta;
1334 u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr;
1335 u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr;
1340 struct iwl_hw_params hw_params;
1344 struct iwl_qos_info qos_data;
1346 struct workqueue_struct *workqueue;
1348 struct work_struct restart;
1349 struct work_struct scan_completed;
1350 struct work_struct rx_replenish;
1351 struct work_struct abort_scan;
1352 struct work_struct beacon_update;
1353 struct work_struct tt_work;
1354 struct work_struct ct_enter;
1355 struct work_struct ct_exit;
1356 struct work_struct start_internal_scan;
1358 struct tasklet_struct irq_tasklet;
1360 struct delayed_work init_alive_start;
1361 struct delayed_work alive_start;
1362 struct delayed_work scan_check;
1365 s8 tx_power_user_lmt;
1366 s8 tx_power_device_lmt;
1367 s8 tx_power_lmt_in_half_dbm; /* max tx power in half-dBm format */
1370 #ifdef CONFIG_IWLWIFI_DEBUG
1371 /* debugging info */
1372 u32 debug_level; /* per device debugging will override global
1373 iwl_debug_level if set */
1375 atomic_t restrict_refcnt;
1377 #ifdef CONFIG_IWLWIFI_DEBUGFS
1383 struct dentry *debugfs_dir;
1384 u32 dbgfs_sram_offset, dbgfs_sram_len;
1385 #endif /* CONFIG_IWLWIFI_DEBUGFS */
1386 #endif /* CONFIG_IWLWIFI_DEBUG */
1388 struct work_struct txpower_work;
1389 u32 disable_sens_cal;
1390 u32 disable_chain_noise_cal;
1391 u32 disable_tx_power_cal;
1392 struct work_struct run_time_calib_work;
1393 struct timer_list statistics_periodic;
1394 struct timer_list ucode_trace;
1395 struct timer_list monitor_recover;
1398 struct iwl_event_log event_log;
1401 static inline void iwl_txq_ctx_activate(struct iwl_priv *priv, int txq_id)
1403 set_bit(txq_id, &priv->txq_ctx_active_msk);
1406 static inline void iwl_txq_ctx_deactivate(struct iwl_priv *priv, int txq_id)
1408 clear_bit(txq_id, &priv->txq_ctx_active_msk);
1411 #ifdef CONFIG_IWLWIFI_DEBUG
1412 const char *iwl_get_tx_fail_reason(u32 status);
1414 * iwl_get_debug_level: Return active debug level for device
1416 * Using sysfs it is possible to set per device debug level. This debug
1417 * level will be used if set, otherwise the global debug level which can be
1418 * set via module parameter is used.
1420 static inline u32 iwl_get_debug_level(struct iwl_priv *priv)
1422 if (priv->debug_level)
1423 return priv->debug_level;
1425 return iwl_debug_level;
1428 static inline const char *iwl_get_tx_fail_reason(u32 status) { return ""; }
1430 static inline u32 iwl_get_debug_level(struct iwl_priv *priv)
1432 return iwl_debug_level;
1437 static inline struct ieee80211_hdr *iwl_tx_queue_get_hdr(struct iwl_priv *priv,
1438 int txq_id, int idx)
1440 if (priv->txq[txq_id].txb[idx].skb[0])
1441 return (struct ieee80211_hdr *)priv->txq[txq_id].
1442 txb[idx].skb[0]->data;
1447 static inline int iwl_is_associated(struct iwl_priv *priv)
1449 return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
1452 static inline int is_channel_valid(const struct iwl_channel_info *ch_info)
1454 if (ch_info == NULL)
1456 return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
1459 static inline int is_channel_radar(const struct iwl_channel_info *ch_info)
1461 return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
1464 static inline u8 is_channel_a_band(const struct iwl_channel_info *ch_info)
1466 return ch_info->band == IEEE80211_BAND_5GHZ;
1469 static inline u8 is_channel_bg_band(const struct iwl_channel_info *ch_info)
1471 return ch_info->band == IEEE80211_BAND_2GHZ;
1474 static inline int is_channel_passive(const struct iwl_channel_info *ch)
1476 return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
1479 static inline int is_channel_ibss(const struct iwl_channel_info *ch)
1481 return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
1484 static inline void __iwl_free_pages(struct iwl_priv *priv, struct page *page)
1486 __free_pages(page, priv->hw_params.rx_page_order);
1487 priv->alloc_rxb_page--;
1490 static inline void iwl_free_pages(struct iwl_priv *priv, unsigned long page)
1492 free_pages(page, priv->hw_params.rx_page_order);
1493 priv->alloc_rxb_page--;
1495 #endif /* __iwl_dev_h__ */