1 /******************************************************************************
3 * Copyright(c) 2003 - 2009 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-3945-led.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_bg_cfg;
57 extern struct iwl_cfg iwl5100_abg_cfg;
58 extern struct iwl_cfg iwl5150_agn_cfg;
59 extern struct iwl_cfg iwl6000_2ag_cfg;
60 extern struct iwl_cfg iwl6000_2agn_cfg;
61 extern struct iwl_cfg iwl6000_3agn_cfg;
62 extern struct iwl_cfg iwl6050_2agn_cfg;
63 extern struct iwl_cfg iwl6050_3agn_cfg;
64 extern struct iwl_cfg iwl1000_bgn_cfg;
68 /* shared structures from iwl-5000.c */
69 extern struct iwl_mod_params iwl50_mod_params;
70 extern struct iwl_ops iwl5000_ops;
71 extern struct iwl_ucode_ops iwl5000_ucode;
72 extern struct iwl_lib_ops iwl5000_lib;
73 extern struct iwl_hcmd_ops iwl5000_hcmd;
74 extern struct iwl_hcmd_utils_ops iwl5000_hcmd_utils;
76 /* shared functions from iwl-5000.c */
77 extern u16 iwl5000_get_hcmd_size(u8 cmd_id, u16 len);
78 extern u16 iwl5000_build_addsta_hcmd(const struct iwl_addsta_cmd *cmd,
80 extern void iwl5000_rts_tx_cmd_flag(struct ieee80211_tx_info *info,
82 extern int iwl5000_calc_rssi(struct iwl_priv *priv,
83 struct iwl_rx_phy_res *rx_resp);
84 extern int iwl5000_apm_init(struct iwl_priv *priv);
85 extern void iwl5000_apm_stop(struct iwl_priv *priv);
86 extern int iwl5000_apm_reset(struct iwl_priv *priv);
87 extern void iwl5000_nic_config(struct iwl_priv *priv);
88 extern u16 iwl5000_eeprom_calib_version(struct iwl_priv *priv);
89 extern const u8 *iwl5000_eeprom_query_addr(const struct iwl_priv *priv,
91 extern void iwl5000_txq_update_byte_cnt_tbl(struct iwl_priv *priv,
92 struct iwl_tx_queue *txq,
94 extern void iwl5000_txq_inval_byte_cnt_tbl(struct iwl_priv *priv,
95 struct iwl_tx_queue *txq);
96 extern int iwl5000_load_ucode(struct iwl_priv *priv);
97 extern void iwl5000_init_alive_start(struct iwl_priv *priv);
98 extern int iwl5000_alive_notify(struct iwl_priv *priv);
99 extern int iwl5000_hw_set_hw_params(struct iwl_priv *priv);
100 extern int iwl5000_txq_agg_enable(struct iwl_priv *priv, int txq_id,
101 int tx_fifo, int sta_id, int tid, u16 ssn_idx);
102 extern int iwl5000_txq_agg_disable(struct iwl_priv *priv, u16 txq_id,
103 u16 ssn_idx, u8 tx_fifo);
104 extern void iwl5000_txq_set_sched(struct iwl_priv *priv, u32 mask);
105 extern void iwl5000_setup_deferred_work(struct iwl_priv *priv);
106 extern void iwl5000_rx_handler_setup(struct iwl_priv *priv);
107 extern int iwl5000_hw_valid_rtc_data_addr(u32 addr);
108 extern int iwl5000_send_tx_power(struct iwl_priv *priv);
109 extern void iwl5000_temperature(struct iwl_priv *priv);
111 /* CT-KILL constants */
112 #define CT_KILL_THRESHOLD_LEGACY 110 /* in Celsius */
113 #define CT_KILL_THRESHOLD 114 /* in Celsius */
114 #define CT_KILL_EXIT_THRESHOLD 95 /* in Celsius */
116 /* Default noise level to report when noise measurement is not available.
117 * This may be because we're:
118 * 1) Not associated (4965, no beacon statistics being sent to driver)
119 * 2) Scanning (noise measurement does not apply to associated channel)
120 * 3) Receiving CCK (3945 delivers noise info only for OFDM frames)
121 * Use default noise value of -127 ... this is below the range of measurable
122 * Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
123 * Also, -127 works better than 0 when averaging frames with/without
124 * noise info (e.g. averaging might be done in app); measured dBm values are
125 * always negative ... using a negative value as the default keeps all
126 * averages within an s8's (used in some apps) range of negative values. */
127 #define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
130 * RTS threshold here is total size [2347] minus 4 FCS bytes
132 * a value of 0 means RTS on all data/management packets
133 * a value > max MSDU size means no RTS
134 * else RTS for data/management frames where MPDU is larger
137 #define DEFAULT_RTS_THRESHOLD 2347U
138 #define MIN_RTS_THRESHOLD 0U
139 #define MAX_RTS_THRESHOLD 2347U
140 #define MAX_MSDU_SIZE 2304U
141 #define MAX_MPDU_SIZE 2346U
142 #define DEFAULT_BEACON_INTERVAL 100U
143 #define DEFAULT_SHORT_RETRY_LIMIT 7U
144 #define DEFAULT_LONG_RETRY_LIMIT 4U
146 struct iwl_rx_mem_buffer {
147 dma_addr_t real_dma_addr;
148 dma_addr_t aligned_dma_addr;
150 struct list_head list;
154 * Generic queue structure
156 * Contains common data for Rx and Tx queues
159 int n_bd; /* number of BDs in this queue */
160 int write_ptr; /* 1-st empty entry (index) host_w*/
161 int read_ptr; /* last used entry (index) host_r*/
162 dma_addr_t dma_addr; /* physical addr for BD's */
163 int n_window; /* safe queue window */
165 int low_mark; /* low watermark, resume queue if free
166 * space more than this */
167 int high_mark; /* high watermark, stop queue if free
168 * space less than this */
169 } __attribute__ ((packed));
171 /* One for each TFD */
173 struct sk_buff *skb[IWL_NUM_OF_TBS - 1];
177 * struct iwl_tx_queue - Tx Queue for DMA
178 * @q: generic Rx/Tx queue descriptor
179 * @bd: base of circular buffer of TFDs
180 * @cmd: array of command/Tx buffers
181 * @dma_addr_cmd: physical address of cmd/tx buffer array
182 * @txb: array of per-TFD driver data
183 * @need_update: indicates need to update read/write index
184 * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
186 * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
187 * descriptors) and required locking structures.
189 #define TFD_TX_CMD_SLOTS 256
190 #define TFD_CMD_SLOTS 32
192 struct iwl_tx_queue {
195 struct iwl_cmd *cmd[TFD_TX_CMD_SLOTS];
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 fat_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 /* FAT channel info */
268 s8 fat_max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
269 s8 fat_curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) */
270 s8 fat_min_power; /* always 0 */
271 s8 fat_scan_power; /* (dBm) eeprom, direct scans, any rate */
272 u8 fat_flags; /* flags copied from EEPROM */
273 u8 fat_extension_channel; /* HT_IE_EXT_CHANNEL_* */
275 /* Radio/DSP gain settings for each "normal" data Tx rate.
276 * These include, in addition to RF and DSP gain, a few fields for
277 * remembering/modifying gain settings (indexes). */
278 struct iwl3945_channel_power_info power_info[IWL4965_MAX_RATE];
280 /* Radio/DSP gain settings for each scan rate, for directed scans. */
281 struct iwl3945_scan_power_info scan_pwr_info[IWL_NUM_SCAN_RATES];
284 #define IWL_TX_FIFO_AC0 0
285 #define IWL_TX_FIFO_AC1 1
286 #define IWL_TX_FIFO_AC2 2
287 #define IWL_TX_FIFO_AC3 3
288 #define IWL_TX_FIFO_HCCA_1 5
289 #define IWL_TX_FIFO_HCCA_2 6
290 #define IWL_TX_FIFO_NONE 7
292 /* Minimum number of queues. MAX_NUM is defined in hw specific files.
293 * Set the minimum to accommodate the 4 standard TX queues, 1 command
294 * queue, 2 (unused) HCCA queues, and 4 HT queues (one for each AC) */
295 #define IWL_MIN_NUM_QUEUES 10
297 /* Power management (not Tx power) structures */
304 #define IEEE80211_DATA_LEN 2304
305 #define IEEE80211_4ADDR_LEN 30
306 #define IEEE80211_HLEN (IEEE80211_4ADDR_LEN)
307 #define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
311 struct ieee80211_hdr frame;
312 struct iwl_tx_beacon_cmd beacon;
313 u8 raw[IEEE80211_FRAME_LEN];
316 struct list_head list;
319 #define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
320 #define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
321 #define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
327 CMD_SIZE_HUGE = (1 << 0),
328 CMD_ASYNC = (1 << 1),
329 CMD_WANT_SKB = (1 << 2),
335 struct iwl_cmd_meta {
336 struct iwl_cmd_meta *source;
339 int (*callback)(struct iwl_priv *priv,
340 struct iwl_cmd *cmd, struct sk_buff *skb);
341 } __attribute__ ((packed)) u;
343 /* The CMD_SIZE_HUGE flag bit indicates that the command
344 * structure is stored at the end of the shared queue memory. */
346 DECLARE_PCI_UNMAP_ADDR(mapping)
347 DECLARE_PCI_UNMAP_LEN(len)
348 } __attribute__ ((packed));
350 #define IWL_CMD_MAX_PAYLOAD 320
355 * For allocation of the command and tx queues, this establishes the overall
356 * size of the largest command we send to uCode, except for a scan command
357 * (which is relatively huge; space is allocated separately).
360 struct iwl_cmd_meta meta; /* driver data */
361 struct iwl_cmd_header hdr; /* uCode API */
367 struct iwl_tx_cmd tx;
368 u8 payload[IWL_CMD_MAX_PAYLOAD];
369 } __attribute__ ((packed)) cmd;
370 } __attribute__ ((packed));
373 struct iwl_host_cmd {
376 struct iwl_cmd_meta meta;
380 #define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_cmd) - \
381 sizeof(struct iwl_cmd_meta))
384 * RX related structures and functions
386 #define RX_FREE_BUFFERS 64
387 #define RX_LOW_WATERMARK 8
389 #define SUP_RATE_11A_MAX_NUM_CHANNELS 8
390 #define SUP_RATE_11B_MAX_NUM_CHANNELS 4
391 #define SUP_RATE_11G_MAX_NUM_CHANNELS 12
394 * struct iwl_rx_queue - Rx queue
395 * @bd: driver's pointer to buffer of receive buffer descriptors (rbd)
396 * @dma_addr: bus address of buffer of receive buffer descriptors (rbd)
397 * @read: Shared index to newest available Rx buffer
398 * @write: Shared index to oldest written Rx packet
399 * @free_count: Number of pre-allocated buffers in rx_free
400 * @rx_free: list of free SKBs for use
401 * @rx_used: List of Rx buffers with no SKB
402 * @need_update: flag to indicate we need to update read/write index
403 * @rb_stts: driver's pointer to receive buffer status
404 * @rb_stts_dma: bus address of receive buffer status
406 * NOTE: rx_free and rx_used are used as a FIFO for iwl_rx_mem_buffers
408 struct iwl_rx_queue {
411 struct iwl_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
412 struct iwl_rx_mem_buffer *queue[RX_QUEUE_SIZE];
417 struct list_head rx_free;
418 struct list_head rx_used;
420 struct iwl_rb_status *rb_stts;
421 dma_addr_t rb_stts_dma;
425 #define IWL_SUPPORTED_RATES_IE_LEN 8
427 #define MAX_TID_COUNT 9
429 #define IWL_INVALID_RATE 0xFF
430 #define IWL_INVALID_VALUE -1
433 * struct iwl_ht_agg -- aggregation status while waiting for block-ack
434 * @txq_id: Tx queue used for Tx attempt
435 * @frame_count: # frames attempted by Tx command
436 * @wait_for_ba: Expect block-ack before next Tx reply
437 * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window
438 * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window
439 * @bitmap1: High order, one bit for each frame pending ACK in Tx window
440 * @rate_n_flags: Rate at which Tx was attempted
442 * If REPLY_TX indicates that aggregation was attempted, driver must wait
443 * for block ack (REPLY_COMPRESSED_BA). This struct stores tx reply info
444 * until block ack arrives.
453 #define IWL_AGG_OFF 0
455 #define IWL_EMPTYING_HW_QUEUE_ADDBA 2
456 #define IWL_EMPTYING_HW_QUEUE_DELBA 3
461 struct iwl_tid_data {
464 struct iwl_ht_agg agg;
468 enum ieee80211_key_alg alg;
474 union iwl_ht_rate_supp {
482 #define CFG_HT_RX_AMPDU_FACTOR_DEF (0x3)
483 #define CFG_HT_MPDU_DENSITY_2USEC (0x5)
484 #define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_2USEC
487 /* self configuration data */
489 u8 supported_chan_width;
492 u8 sgf; /* HT_SHORT_GI_* short guard interval */
496 struct ieee80211_mcs_info mcs;
497 /* BSS related data */
498 u8 extension_chan_offset;
501 u8 non_GF_STA_present;
504 union iwl_qos_capabity {
506 u8 edca_count:4; /* bit 0-3 */
507 u8 q_ack:1; /* bit 4 */
508 u8 queue_request:1; /* bit 5 */
509 u8 txop_request:1; /* bit 6 */
510 u8 reserved:1; /* bit 7 */
513 u8 acvo_APSD:1; /* bit 0 */
514 u8 acvi_APSD:1; /* bit 1 */
515 u8 ac_bk_APSD:1; /* bit 2 */
516 u8 ac_be_APSD:1; /* bit 3 */
517 u8 q_ack:1; /* bit 4 */
518 u8 max_len:2; /* bit 5-6 */
519 u8 more_data_ack:1; /* bit 7 */
525 struct iwl_qos_info {
527 union iwl_qos_capabity qos_cap;
528 struct iwl_qosparam_cmd def_qos_parm;
531 #define STA_PS_STATUS_WAKE 0
532 #define STA_PS_STATUS_SLEEP 1
535 struct iwl3945_station_entry {
536 struct iwl3945_addsta_cmd sta;
537 struct iwl_tid_data tid[MAX_TID_COUNT];
540 struct iwl_hw_key keyinfo;
543 struct iwl_station_entry {
544 struct iwl_addsta_cmd sta;
545 struct iwl_tid_data tid[MAX_TID_COUNT];
548 struct iwl_hw_key keyinfo;
551 /* one for each uCode image (inst/data, boot/init/runtime) */
553 void *v_addr; /* access by driver */
554 dma_addr_t p_addr; /* access by card's busmaster DMA */
558 /* uCode file layout */
559 struct iwl_ucode_header {
560 __le32 ver; /* major/minor/API/serial */
563 __le32 inst_size; /* bytes of runtime code */
564 __le32 data_size; /* bytes of runtime data */
565 __le32 init_size; /* bytes of init code */
566 __le32 init_data_size; /* bytes of init data */
567 __le32 boot_size; /* bytes of bootstrap code */
568 u8 data[0]; /* in same order as sizes */
571 __le32 build; /* build number */
572 __le32 inst_size; /* bytes of runtime code */
573 __le32 data_size; /* bytes of runtime data */
574 __le32 init_size; /* bytes of init code */
575 __le32 init_data_size; /* bytes of init data */
576 __le32 boot_size; /* bytes of bootstrap code */
577 u8 data[0]; /* in same order as sizes */
581 #define UCODE_HEADER_SIZE(ver) ((ver) == 1 ? 24 : 28)
583 struct iwl4965_ibss_seq {
587 unsigned long packet_time;
588 struct list_head list;
591 struct iwl_sensitivity_ranges {
598 u16 auto_corr_min_ofdm;
599 u16 auto_corr_min_ofdm_mrc;
600 u16 auto_corr_min_ofdm_x1;
601 u16 auto_corr_min_ofdm_mrc_x1;
603 u16 auto_corr_max_ofdm;
604 u16 auto_corr_max_ofdm_mrc;
605 u16 auto_corr_max_ofdm_x1;
606 u16 auto_corr_max_ofdm_mrc_x1;
608 u16 auto_corr_max_cck;
609 u16 auto_corr_max_cck_mrc;
610 u16 auto_corr_min_cck;
611 u16 auto_corr_min_cck_mrc;
615 #define KELVIN_TO_CELSIUS(x) ((x)-273)
616 #define CELSIUS_TO_KELVIN(x) ((x)+273)
620 * struct iwl_hw_params
621 * @max_txq_num: Max # Tx queues supported
622 * @dma_chnl_num: Number of Tx DMA/FIFO channels
623 * @scd_bc_tbls_size: size of scheduler byte count tables
624 * @tfd_size: TFD size
625 * @tx/rx_chains_num: Number of TX/RX chains
626 * @valid_tx/rx_ant: usable antennas
627 * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
628 * @max_rxq_log: Log-base-2 of max_rxq_size
629 * @rx_buf_size: Rx buffer size
630 * @rx_wrt_ptr_reg: FH{39}_RSCSR_CHNL0_WPTR
633 * @fat_channel: is 40MHz width possible in band 2.4
634 * BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ)
635 * @sw_crypto: 0 for hw, 1 for sw
636 * @max_xxx_size: for ucode uses
637 * @ct_kill_threshold: temperature threshold
638 * @calib_init_cfg: setup initial calibrations for the hw
639 * @struct iwl_sensitivity_ranges: range of sensitivity values
641 struct iwl_hw_params {
644 u16 scd_bc_tbls_size;
658 u8 max_beacon_itrvl; /* in 1024 ms */
662 u32 ct_kill_threshold; /* value in hw-dependent units */
663 u32 ct_kill_exit_threshold; /* value in hw-dependent units */
664 /* for 1000, 6000 series and up */
666 const struct iwl_sensitivity_ranges *sens;
670 /******************************************************************************
672 * Functions implemented in core module which are forward declared here
673 * for use by iwl-[4-5].c
675 * NOTE: The implementation of these functions are not hardware specific
676 * which is why they are in the core module files.
678 * Naming convention --
679 * iwl_ <-- Is part of iwlwifi
680 * iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
681 * iwl4965_bg_ <-- Called from work queue context
682 * iwl4965_mac_ <-- mac80211 callback
684 ****************************************************************************/
685 extern void iwl_update_chain_flags(struct iwl_priv *priv);
686 extern int iwl_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src);
687 extern const u8 iwl_bcast_addr[ETH_ALEN];
688 extern int iwl_rxq_stop(struct iwl_priv *priv);
689 extern void iwl_txq_ctx_stop(struct iwl_priv *priv);
690 extern int iwl_queue_space(const struct iwl_queue *q);
691 static inline int iwl_queue_used(const struct iwl_queue *q, int i)
693 return q->write_ptr > q->read_ptr ?
694 (i >= q->read_ptr && i < q->write_ptr) :
695 !(i < q->read_ptr && i >= q->write_ptr);
699 static inline u8 get_cmd_index(struct iwl_queue *q, u32 index, int is_huge)
701 /* This is for scan command, the big buffer at end of command array */
703 return q->n_window; /* must be power of 2 */
705 /* Otherwise, use normal size buffers */
706 return index & (q->n_window - 1);
716 #define HT_SHORT_GI_20MHZ (1 << 0)
717 #define HT_SHORT_GI_40MHZ (1 << 1)
719 #define IWL_CHANNEL_WIDTH_20MHZ 0
720 #define IWL_CHANNEL_WIDTH_40MHZ 1
722 #define IWL_OPERATION_MODE_AUTO 0
723 #define IWL_OPERATION_MODE_HT_ONLY 1
724 #define IWL_OPERATION_MODE_MIXED 2
725 #define IWL_OPERATION_MODE_20MHZ 3
727 #define IWL_TX_CRC_SIZE 4
728 #define IWL_TX_DELIMITER_SIZE 4
730 #define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
732 /* Sensitivity and chain noise calibration */
733 #define INITIALIZATION_VALUE 0xFFFF
734 #define CAL_NUM_OF_BEACONS 20
735 #define MAXIMUM_ALLOWED_PATHLOSS 15
737 #define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
739 #define MAX_FA_OFDM 50
740 #define MIN_FA_OFDM 5
741 #define MAX_FA_CCK 50
744 #define AUTO_CORR_STEP_OFDM 1
746 #define AUTO_CORR_STEP_CCK 3
747 #define AUTO_CORR_MAX_TH_CCK 160
750 #define NRG_STEP_CCK 2
752 #define MAX_NUMBER_CCK_NO_FA 100
754 #define AUTO_CORR_CCK_MIN_VAL_DEF (125)
759 #define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
760 #define ALL_BAND_FILTER 0xFF00
761 #define IN_BAND_FILTER 0xFF
762 #define MIN_AVERAGE_NOISE_MAX_VALUE 0xFFFFFFFF
764 #define NRG_NUM_PREV_STAT_L 20
765 #define NUM_RX_CHAINS 3
767 enum iwl4965_false_alarm_state {
770 IWL_FA_GOOD_RANGE = 2,
773 enum iwl4965_chain_noise_state {
774 IWL_CHAIN_NOISE_ALIVE = 0, /* must be 0 */
775 IWL_CHAIN_NOISE_ACCUMULATE,
776 IWL_CHAIN_NOISE_CALIBRATED,
777 IWL_CHAIN_NOISE_DONE,
780 enum iwl4965_calib_enabled_state {
781 IWL_CALIB_DISABLED = 0, /* must be 0 */
782 IWL_CALIB_ENABLED = 1,
788 * defines the order in which results of initial calibrations
789 * should be sent to the runtime uCode
796 IWL_CALIB_TX_IQ_PERD,
801 /* Opaque calibration results */
802 struct iwl_calib_result {
807 #define UCODE_ALIVE_TIMEOUT (5 * HZ)
815 /* Sensitivity calib data */
816 struct iwl_sensitivity_data {
818 u32 auto_corr_ofdm_mrc;
819 u32 auto_corr_ofdm_x1;
820 u32 auto_corr_ofdm_mrc_x1;
822 u32 auto_corr_cck_mrc;
824 u32 last_bad_plcp_cnt_ofdm;
825 u32 last_fa_cnt_ofdm;
826 u32 last_bad_plcp_cnt_cck;
832 u8 nrg_silence_rssi[NRG_NUM_PREV_STAT_L];
837 s32 nrg_auto_corr_silence_diff;
838 u32 num_in_cck_no_fa;
842 /* Chain noise (differential Rx gain) calib data */
843 struct iwl_chain_noise_data {
852 u8 disconn_array[NUM_RX_CHAINS];
853 u8 delta_gain_code[NUM_RX_CHAINS];
858 #define EEPROM_SEM_TIMEOUT 10 /* milliseconds */
859 #define EEPROM_SEM_RETRY_LIMIT 1000 /* number of attempts (not time) */
863 MEASUREMENT_READY = (1 << 0),
864 MEASUREMENT_ACTIVE = (1 << 1),
868 NVM_DEVICE_TYPE_EEPROM = 0,
872 /* interrupt statistics */
873 struct isr_statistics {
883 u32 rx_handlers[REPLY_MAX];
888 #define IWL_MAX_NUM_QUEUES 20 /* FIXME: do dynamic allocation */
892 /* ieee device used by generic ieee processing code */
893 struct ieee80211_hw *hw;
894 struct ieee80211_channel *ieee_channels;
895 struct ieee80211_rate *ieee_rates;
898 /* temporary frame storage list */
899 struct list_head free_frames;
902 enum ieee80211_band band;
905 void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv,
906 struct iwl_rx_mem_buffer *rxb);
908 struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
910 #if defined(CONFIG_IWLWIFI_SPECTRUM_MEASUREMENT) || defined(CONFIG_IWL3945_SPECTRUM_MEASUREMENT)
911 /* spectrum measurement report caching */
912 struct iwl_spectrum_notification measure_report;
913 u8 measurement_status;
915 /* ucode beacon time */
916 u32 ucode_beacon_time;
918 /* we allocate array of iwl4965_channel_info for NIC's valid channels.
919 * Access via channel # using indirect index array */
920 struct iwl_channel_info *channel_info; /* channel info array */
921 u8 channel_count; /* # of channels */
923 /* each calibration channel group in the EEPROM has a derived
924 * clip setting for each rate. 3945 only.*/
925 const struct iwl3945_clip_group clip39_groups[5];
927 /* thermal calibration */
928 s32 temperature; /* degrees Kelvin */
929 s32 last_temperature;
931 /* init calibration results */
932 struct iwl_calib_result calib_results[IWL_CALIB_MAX];
934 /* Scan related variables */
935 unsigned long last_scan_jiffies;
936 unsigned long next_scan_jiffies;
937 unsigned long scan_start;
938 unsigned long scan_pass_start;
939 unsigned long scan_start_tsf;
942 struct cfg80211_scan_request *scan_request;
943 u8 scan_tx_ant[IEEE80211_NUM_BANDS];
947 spinlock_t lock; /* protect general shared data */
948 spinlock_t hcmd_lock; /* protect hcmd */
949 spinlock_t reg_lock; /* protect hw register access */
952 /* basic pci-network driver stuff */
953 struct pci_dev *pci_dev;
955 /* pci hardware address support */
956 void __iomem *hw_base;
961 /* uCode images, save to reload in case of failure */
962 u32 ucode_ver; /* version of ucode, copy of
964 struct fw_desc ucode_code; /* runtime inst */
965 struct fw_desc ucode_data; /* runtime data original */
966 struct fw_desc ucode_data_backup; /* runtime data save/restore */
967 struct fw_desc ucode_init; /* initialization inst */
968 struct fw_desc ucode_init_data; /* initialization data */
969 struct fw_desc ucode_boot; /* bootstrap inst */
970 enum ucode_type ucode_type;
971 u8 ucode_write_complete; /* the image write is complete */
974 struct iwl_rxon_time_cmd rxon_timing;
976 /* We declare this const so it can only be
977 * changed via explicit cast within the
978 * routines that actually update the physical
980 const struct iwl_rxon_cmd active_rxon;
981 struct iwl_rxon_cmd staging_rxon;
983 struct iwl_rxon_cmd recovery_rxon;
985 /* 1st responses from initialize and runtime uCode images.
986 * 4965's initialize alive response contains some calibration data. */
987 struct iwl_init_alive_resp card_alive_init;
988 struct iwl_alive_resp card_alive;
990 #ifdef CONFIG_IWLWIFI_LEDS
991 unsigned long last_blink_time;
995 struct iwl_led led[IWL_LED_TRG_MAX];
996 unsigned int rxtxpackets;
999 u16 active_rate_basic;
1001 u8 assoc_station_added;
1003 struct iwl_sensitivity_data sensitivity_data;
1004 struct iwl_chain_noise_data chain_noise_data;
1005 __le16 sensitivity_tbl[HD_TABLE_SIZE];
1007 struct iwl_ht_info current_ht_config;
1008 u8 last_phy_res[100];
1010 /* Rate scaling data */
1011 s8 data_retry_limit;
1014 wait_queue_head_t wait_command_queue;
1016 int activity_timer_active;
1018 /* Rx and Tx DMA processing queues */
1019 struct iwl_rx_queue rxq;
1020 struct iwl_tx_queue txq[IWL_MAX_NUM_QUEUES];
1021 unsigned long txq_ctx_active_msk;
1022 struct iwl_dma_ptr kw; /* keep warm address */
1023 struct iwl_dma_ptr scd_bc_tbls;
1025 u32 scd_base_addr; /* scheduler sram base address */
1027 unsigned long status;
1029 int last_rx_rssi; /* From Rx packet statistics */
1030 int last_rx_noise; /* From beacon statistics */
1032 /* counts mgmt, ctl, and data packets */
1033 struct traffic_stats {
1036 } tx_stats[3], rx_stats[3];
1038 /* counts interrupts */
1039 struct isr_statistics isr_stats;
1041 struct iwl_power_mgr power_data;
1043 struct iwl_notif_statistics statistics;
1044 unsigned long last_statistics_time;
1046 /* context information */
1052 u8 mac_addr[ETH_ALEN];
1054 /*station table variables */
1055 spinlock_t sta_lock;
1057 struct iwl_station_entry stations[IWL_STATION_COUNT];
1058 struct iwl_wep_key wep_keys[WEP_KEYS_MAX];
1061 unsigned long ucode_key_table;
1063 /* queue refcounts */
1064 #define IWL_MAX_HW_QUEUES 32
1065 unsigned long queue_stopped[BITS_TO_LONGS(IWL_MAX_HW_QUEUES)];
1067 atomic_t queue_stop_count[4];
1069 /* Indication if ieee80211_ops->open has been called */
1072 u8 mac80211_registered;
1074 /* Rx'd packet timing information */
1075 u32 last_beacon_time;
1080 int nvm_device_type;
1081 struct iwl_eeprom_calib_info *calib_info;
1083 enum nl80211_iftype iw_mode;
1085 struct sk_buff *ibss_beacon;
1087 /* Last Rx'd beacon timestamp */
1090 struct ieee80211_vif *vif;
1094 dma_addr_t shared_phys;
1096 struct iwl_hw_params hw_params;
1100 dma_addr_t ict_tbl_dma;
1101 dma_addr_t aligned_ict_tbl_dma;
1108 /* Current association information needed to configure the
1111 u16 assoc_capability;
1113 struct iwl_qos_info qos_data;
1115 struct workqueue_struct *workqueue;
1117 struct work_struct up;
1118 struct work_struct restart;
1119 struct work_struct calibrated_work;
1120 struct work_struct scan_completed;
1121 struct work_struct rx_replenish;
1122 struct work_struct abort_scan;
1123 struct work_struct update_link_led;
1124 struct work_struct auth_work;
1125 struct work_struct report_work;
1126 struct work_struct request_scan;
1127 struct work_struct beacon_update;
1129 struct tasklet_struct irq_tasklet;
1131 struct delayed_work init_alive_start;
1132 struct delayed_work alive_start;
1133 struct delayed_work scan_check;
1136 struct delayed_work thermal_periodic;
1137 struct delayed_work rfkill_poll;
1140 s8 tx_power_user_lmt;
1141 s8 tx_power_channel_lmt;
1144 #ifdef CONFIG_IWLWIFI_DEBUG
1145 /* debugging info */
1147 atomic_t restrict_refcnt;
1148 #ifdef CONFIG_IWLWIFI_DEBUGFS
1150 struct iwl_debugfs *dbgfs;
1151 #endif /* CONFIG_IWLWIFI_DEBUGFS */
1152 #endif /* CONFIG_IWLWIFI_DEBUG */
1154 struct work_struct txpower_work;
1155 u32 disable_sens_cal;
1156 u32 disable_chain_noise_cal;
1157 u32 disable_tx_power_cal;
1158 struct work_struct run_time_calib_work;
1159 struct timer_list statistics_periodic;
1162 #define IWL_DEFAULT_TX_POWER 0x0F
1164 struct iwl3945_notif_statistics statistics_39;
1169 static inline void iwl_txq_ctx_activate(struct iwl_priv *priv, int txq_id)
1171 set_bit(txq_id, &priv->txq_ctx_active_msk);
1174 static inline void iwl_txq_ctx_deactivate(struct iwl_priv *priv, int txq_id)
1176 clear_bit(txq_id, &priv->txq_ctx_active_msk);
1179 #ifdef CONFIG_IWLWIFI_DEBUG
1180 const char *iwl_get_tx_fail_reason(u32 status);
1182 static inline const char *iwl_get_tx_fail_reason(u32 status) { return ""; }
1186 static inline struct ieee80211_hdr *iwl_tx_queue_get_hdr(struct iwl_priv *priv,
1187 int txq_id, int idx)
1189 if (priv->txq[txq_id].txb[idx].skb[0])
1190 return (struct ieee80211_hdr *)priv->txq[txq_id].
1191 txb[idx].skb[0]->data;
1196 static inline int iwl_is_associated(struct iwl_priv *priv)
1198 return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
1201 static inline int is_channel_valid(const struct iwl_channel_info *ch_info)
1203 if (ch_info == NULL)
1205 return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
1208 static inline int is_channel_radar(const struct iwl_channel_info *ch_info)
1210 return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
1213 static inline u8 is_channel_a_band(const struct iwl_channel_info *ch_info)
1215 return ch_info->band == IEEE80211_BAND_5GHZ;
1218 static inline u8 is_channel_bg_band(const struct iwl_channel_info *ch_info)
1220 return ch_info->band == IEEE80211_BAND_2GHZ;
1223 static inline int is_channel_passive(const struct iwl_channel_info *ch)
1225 return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
1228 static inline int is_channel_ibss(const struct iwl_channel_info *ch)
1230 return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
1233 #endif /* __iwl_dev_h__ */