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 struct iwl_device_cmd;
156 struct iwl_cmd_meta {
157 /* only for SYNC commands, iff the reply skb is wanted */
158 struct iwl_host_cmd *source;
160 * only for ASYNC commands
161 * (which is somewhat stupid -- look at iwl-sta.c for instance
162 * which duplicates a bunch of code because the callback isn't
163 * invoked for SYNC commands, if it were and its result passed
164 * through it would be simpler...)
166 void (*callback)(struct iwl_priv *priv,
167 struct iwl_device_cmd *cmd,
168 struct sk_buff *skb);
170 /* The CMD_SIZE_HUGE flag bit indicates that the command
171 * structure is stored at the end of the shared queue memory. */
174 DECLARE_PCI_UNMAP_ADDR(mapping)
175 DECLARE_PCI_UNMAP_LEN(len)
179 * Generic queue structure
181 * Contains common data for Rx and Tx queues
184 int n_bd; /* number of BDs in this queue */
185 int write_ptr; /* 1-st empty entry (index) host_w*/
186 int read_ptr; /* last used entry (index) host_r*/
187 dma_addr_t dma_addr; /* physical addr for BD's */
188 int n_window; /* safe queue window */
190 int low_mark; /* low watermark, resume queue if free
191 * space more than this */
192 int high_mark; /* high watermark, stop queue if free
193 * space less than this */
194 } __attribute__ ((packed));
196 /* One for each TFD */
198 struct sk_buff *skb[IWL_NUM_OF_TBS - 1];
202 * struct iwl_tx_queue - Tx Queue for DMA
203 * @q: generic Rx/Tx queue descriptor
204 * @bd: base of circular buffer of TFDs
205 * @cmd: array of command/TX buffer pointers
206 * @meta: array of meta data for each command/tx buffer
207 * @dma_addr_cmd: physical address of cmd/tx buffer array
208 * @txb: array of per-TFD driver data
209 * @need_update: indicates need to update read/write index
210 * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
212 * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
213 * descriptors) and required locking structures.
215 #define TFD_TX_CMD_SLOTS 256
216 #define TFD_CMD_SLOTS 32
218 struct iwl_tx_queue {
221 struct iwl_device_cmd **cmd;
222 struct iwl_cmd_meta *meta;
223 struct iwl_tx_info *txb;
230 #define IWL_NUM_SCAN_RATES (2)
232 struct iwl4965_channel_tgd_info {
237 struct iwl4965_channel_tgh_info {
241 #define IWL4965_MAX_RATE (33)
243 struct iwl3945_clip_group {
244 /* maximum power level to prevent clipping for each rate, derived by
245 * us from this band's saturation power in EEPROM */
246 const s8 clip_powers[IWL_MAX_RATES];
249 /* current Tx power values to use, one for each rate for each channel.
250 * requested power is limited by:
251 * -- regulatory EEPROM limits for this channel
252 * -- hardware capabilities (clip-powers)
253 * -- spectrum management
254 * -- user preference (e.g. iwconfig)
255 * when requested power is set, base power index must also be set. */
256 struct iwl3945_channel_power_info {
257 struct iwl3945_tx_power tpc; /* actual radio and DSP gain settings */
258 s8 power_table_index; /* actual (compenst'd) index into gain table */
259 s8 base_power_index; /* gain index for power at factory temp. */
260 s8 requested_power; /* power (dBm) requested for this chnl/rate */
263 /* current scan Tx power values to use, one for each scan rate for each
265 struct iwl3945_scan_power_info {
266 struct iwl3945_tx_power tpc; /* actual radio and DSP gain settings */
267 s8 power_table_index; /* actual (compenst'd) index into gain table */
268 s8 requested_power; /* scan pwr (dBm) requested for chnl/rate */
272 * One for each channel, holds all channel setup data
273 * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
276 struct iwl_channel_info {
277 struct iwl4965_channel_tgd_info tgd;
278 struct iwl4965_channel_tgh_info tgh;
279 struct iwl_eeprom_channel eeprom; /* EEPROM regulatory limit */
280 struct iwl_eeprom_channel fat_eeprom; /* EEPROM regulatory limit for
283 u8 channel; /* channel number */
284 u8 flags; /* flags copied from EEPROM */
285 s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
286 s8 curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) limit */
287 s8 min_power; /* always 0 */
288 s8 scan_power; /* (dBm) regul. eeprom, direct scans, any rate */
290 u8 group_index; /* 0-4, maps channel to group1/2/3/4/5 */
291 u8 band_index; /* 0-4, maps channel to band1/2/3/4/5 */
292 enum ieee80211_band band;
294 /* FAT channel info */
295 s8 fat_max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
296 s8 fat_curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) */
297 s8 fat_min_power; /* always 0 */
298 s8 fat_scan_power; /* (dBm) eeprom, direct scans, any rate */
299 u8 fat_flags; /* flags copied from EEPROM */
300 u8 fat_extension_channel; /* HT_IE_EXT_CHANNEL_* */
302 /* Radio/DSP gain settings for each "normal" data Tx rate.
303 * These include, in addition to RF and DSP gain, a few fields for
304 * remembering/modifying gain settings (indexes). */
305 struct iwl3945_channel_power_info power_info[IWL4965_MAX_RATE];
307 /* Radio/DSP gain settings for each scan rate, for directed scans. */
308 struct iwl3945_scan_power_info scan_pwr_info[IWL_NUM_SCAN_RATES];
311 #define IWL_TX_FIFO_AC0 0
312 #define IWL_TX_FIFO_AC1 1
313 #define IWL_TX_FIFO_AC2 2
314 #define IWL_TX_FIFO_AC3 3
315 #define IWL_TX_FIFO_HCCA_1 5
316 #define IWL_TX_FIFO_HCCA_2 6
317 #define IWL_TX_FIFO_NONE 7
319 /* Minimum number of queues. MAX_NUM is defined in hw specific files.
320 * Set the minimum to accommodate the 4 standard TX queues, 1 command
321 * queue, 2 (unused) HCCA queues, and 4 HT queues (one for each AC) */
322 #define IWL_MIN_NUM_QUEUES 10
324 /* Power management (not Tx power) structures */
331 #define IEEE80211_DATA_LEN 2304
332 #define IEEE80211_4ADDR_LEN 30
333 #define IEEE80211_HLEN (IEEE80211_4ADDR_LEN)
334 #define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
338 struct ieee80211_hdr frame;
339 struct iwl_tx_beacon_cmd beacon;
340 u8 raw[IEEE80211_FRAME_LEN];
343 struct list_head list;
346 #define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
347 #define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
348 #define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
354 CMD_SIZE_HUGE = (1 << 0),
355 CMD_ASYNC = (1 << 1),
356 CMD_WANT_SKB = (1 << 2),
359 #define IWL_CMD_MAX_PAYLOAD 320
362 * struct iwl_device_cmd
364 * For allocation of the command and tx queues, this establishes the overall
365 * size of the largest command we send to uCode, except for a scan command
366 * (which is relatively huge; space is allocated separately).
368 struct iwl_device_cmd {
369 struct iwl_cmd_header hdr; /* uCode API */
375 struct iwl_tx_cmd tx;
376 u8 payload[IWL_CMD_MAX_PAYLOAD];
377 } __attribute__ ((packed)) cmd;
378 } __attribute__ ((packed));
380 #define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_device_cmd))
383 struct iwl_host_cmd {
385 struct sk_buff *reply_skb;
386 void (*callback)(struct iwl_priv *priv,
387 struct iwl_device_cmd *cmd,
388 struct sk_buff *skb);
395 * RX related structures and functions
397 #define RX_FREE_BUFFERS 64
398 #define RX_LOW_WATERMARK 8
400 #define SUP_RATE_11A_MAX_NUM_CHANNELS 8
401 #define SUP_RATE_11B_MAX_NUM_CHANNELS 4
402 #define SUP_RATE_11G_MAX_NUM_CHANNELS 12
405 * struct iwl_rx_queue - Rx queue
406 * @bd: driver's pointer to buffer of receive buffer descriptors (rbd)
407 * @dma_addr: bus address of buffer of receive buffer descriptors (rbd)
408 * @read: Shared index to newest available Rx buffer
409 * @write: Shared index to oldest written Rx packet
410 * @free_count: Number of pre-allocated buffers in rx_free
411 * @rx_free: list of free SKBs for use
412 * @rx_used: List of Rx buffers with no SKB
413 * @need_update: flag to indicate we need to update read/write index
414 * @rb_stts: driver's pointer to receive buffer status
415 * @rb_stts_dma: bus address of receive buffer status
417 * NOTE: rx_free and rx_used are used as a FIFO for iwl_rx_mem_buffers
419 struct iwl_rx_queue {
422 struct iwl_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
423 struct iwl_rx_mem_buffer *queue[RX_QUEUE_SIZE];
428 struct list_head rx_free;
429 struct list_head rx_used;
431 struct iwl_rb_status *rb_stts;
432 dma_addr_t rb_stts_dma;
436 #define IWL_SUPPORTED_RATES_IE_LEN 8
438 #define MAX_TID_COUNT 9
440 #define IWL_INVALID_RATE 0xFF
441 #define IWL_INVALID_VALUE -1
444 * struct iwl_ht_agg -- aggregation status while waiting for block-ack
445 * @txq_id: Tx queue used for Tx attempt
446 * @frame_count: # frames attempted by Tx command
447 * @wait_for_ba: Expect block-ack before next Tx reply
448 * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window
449 * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window
450 * @bitmap1: High order, one bit for each frame pending ACK in Tx window
451 * @rate_n_flags: Rate at which Tx was attempted
453 * If REPLY_TX indicates that aggregation was attempted, driver must wait
454 * for block ack (REPLY_COMPRESSED_BA). This struct stores tx reply info
455 * until block ack arrives.
464 #define IWL_AGG_OFF 0
466 #define IWL_EMPTYING_HW_QUEUE_ADDBA 2
467 #define IWL_EMPTYING_HW_QUEUE_DELBA 3
472 struct iwl_tid_data {
475 struct iwl_ht_agg agg;
479 enum ieee80211_key_alg alg;
485 union iwl_ht_rate_supp {
493 #define CFG_HT_RX_AMPDU_FACTOR_DEF (0x3)
494 #define CFG_HT_MPDU_DENSITY_2USEC (0x5)
495 #define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_2USEC
498 /* self configuration data */
500 u8 supported_chan_width;
503 u8 sgf; /* HT_SHORT_GI_* short guard interval */
507 struct ieee80211_mcs_info mcs;
508 /* BSS related data */
509 u8 extension_chan_offset;
512 u8 non_GF_STA_present;
515 union iwl_qos_capabity {
517 u8 edca_count:4; /* bit 0-3 */
518 u8 q_ack:1; /* bit 4 */
519 u8 queue_request:1; /* bit 5 */
520 u8 txop_request:1; /* bit 6 */
521 u8 reserved:1; /* bit 7 */
524 u8 acvo_APSD:1; /* bit 0 */
525 u8 acvi_APSD:1; /* bit 1 */
526 u8 ac_bk_APSD:1; /* bit 2 */
527 u8 ac_be_APSD:1; /* bit 3 */
528 u8 q_ack:1; /* bit 4 */
529 u8 max_len:2; /* bit 5-6 */
530 u8 more_data_ack:1; /* bit 7 */
536 struct iwl_qos_info {
538 union iwl_qos_capabity qos_cap;
539 struct iwl_qosparam_cmd def_qos_parm;
542 #define STA_PS_STATUS_WAKE 0
543 #define STA_PS_STATUS_SLEEP 1
546 struct iwl3945_station_entry {
547 struct iwl3945_addsta_cmd sta;
548 struct iwl_tid_data tid[MAX_TID_COUNT];
551 struct iwl_hw_key keyinfo;
554 struct iwl_station_entry {
555 struct iwl_addsta_cmd sta;
556 struct iwl_tid_data tid[MAX_TID_COUNT];
559 struct iwl_hw_key keyinfo;
562 /* one for each uCode image (inst/data, boot/init/runtime) */
564 void *v_addr; /* access by driver */
565 dma_addr_t p_addr; /* access by card's busmaster DMA */
569 /* uCode file layout */
570 struct iwl_ucode_header {
571 __le32 ver; /* major/minor/API/serial */
574 __le32 inst_size; /* bytes of runtime code */
575 __le32 data_size; /* bytes of runtime data */
576 __le32 init_size; /* bytes of init code */
577 __le32 init_data_size; /* bytes of init data */
578 __le32 boot_size; /* bytes of bootstrap code */
579 u8 data[0]; /* in same order as sizes */
582 __le32 build; /* build number */
583 __le32 inst_size; /* bytes of runtime code */
584 __le32 data_size; /* bytes of runtime data */
585 __le32 init_size; /* bytes of init code */
586 __le32 init_data_size; /* bytes of init data */
587 __le32 boot_size; /* bytes of bootstrap code */
588 u8 data[0]; /* in same order as sizes */
592 #define UCODE_HEADER_SIZE(ver) ((ver) == 1 ? 24 : 28)
594 struct iwl4965_ibss_seq {
598 unsigned long packet_time;
599 struct list_head list;
602 struct iwl_sensitivity_ranges {
609 u16 auto_corr_min_ofdm;
610 u16 auto_corr_min_ofdm_mrc;
611 u16 auto_corr_min_ofdm_x1;
612 u16 auto_corr_min_ofdm_mrc_x1;
614 u16 auto_corr_max_ofdm;
615 u16 auto_corr_max_ofdm_mrc;
616 u16 auto_corr_max_ofdm_x1;
617 u16 auto_corr_max_ofdm_mrc_x1;
619 u16 auto_corr_max_cck;
620 u16 auto_corr_max_cck_mrc;
621 u16 auto_corr_min_cck;
622 u16 auto_corr_min_cck_mrc;
626 #define KELVIN_TO_CELSIUS(x) ((x)-273)
627 #define CELSIUS_TO_KELVIN(x) ((x)+273)
631 * struct iwl_hw_params
632 * @max_txq_num: Max # Tx queues supported
633 * @dma_chnl_num: Number of Tx DMA/FIFO channels
634 * @scd_bc_tbls_size: size of scheduler byte count tables
635 * @tfd_size: TFD size
636 * @tx/rx_chains_num: Number of TX/RX chains
637 * @valid_tx/rx_ant: usable antennas
638 * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
639 * @max_rxq_log: Log-base-2 of max_rxq_size
640 * @rx_buf_size: Rx buffer size
641 * @rx_wrt_ptr_reg: FH{39}_RSCSR_CHNL0_WPTR
644 * @fat_channel: is 40MHz width possible in band 2.4
645 * BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ)
646 * @sw_crypto: 0 for hw, 1 for sw
647 * @max_xxx_size: for ucode uses
648 * @ct_kill_threshold: temperature threshold
649 * @calib_init_cfg: setup initial calibrations for the hw
650 * @struct iwl_sensitivity_ranges: range of sensitivity values
652 struct iwl_hw_params {
655 u16 scd_bc_tbls_size;
669 u8 max_beacon_itrvl; /* in 1024 ms */
673 u32 ct_kill_threshold; /* value in hw-dependent units */
674 u32 ct_kill_exit_threshold; /* value in hw-dependent units */
675 /* for 1000, 6000 series and up */
677 const struct iwl_sensitivity_ranges *sens;
681 /******************************************************************************
683 * Functions implemented in core module which are forward declared here
684 * for use by iwl-[4-5].c
686 * NOTE: The implementation of these functions are not hardware specific
687 * which is why they are in the core module files.
689 * Naming convention --
690 * iwl_ <-- Is part of iwlwifi
691 * iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
692 * iwl4965_bg_ <-- Called from work queue context
693 * iwl4965_mac_ <-- mac80211 callback
695 ****************************************************************************/
696 extern void iwl_update_chain_flags(struct iwl_priv *priv);
697 extern int iwl_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src);
698 extern const u8 iwl_bcast_addr[ETH_ALEN];
699 extern int iwl_rxq_stop(struct iwl_priv *priv);
700 extern void iwl_txq_ctx_stop(struct iwl_priv *priv);
701 extern int iwl_queue_space(const struct iwl_queue *q);
702 static inline int iwl_queue_used(const struct iwl_queue *q, int i)
704 return q->write_ptr > q->read_ptr ?
705 (i >= q->read_ptr && i < q->write_ptr) :
706 !(i < q->read_ptr && i >= q->write_ptr);
710 static inline u8 get_cmd_index(struct iwl_queue *q, u32 index, int is_huge)
712 /* This is for scan command, the big buffer at end of command array */
714 return q->n_window; /* must be power of 2 */
716 /* Otherwise, use normal size buffers */
717 return index & (q->n_window - 1);
727 #define HT_SHORT_GI_20MHZ (1 << 0)
728 #define HT_SHORT_GI_40MHZ (1 << 1)
730 #define IWL_CHANNEL_WIDTH_20MHZ 0
731 #define IWL_CHANNEL_WIDTH_40MHZ 1
733 #define IWL_OPERATION_MODE_AUTO 0
734 #define IWL_OPERATION_MODE_HT_ONLY 1
735 #define IWL_OPERATION_MODE_MIXED 2
736 #define IWL_OPERATION_MODE_20MHZ 3
738 #define IWL_TX_CRC_SIZE 4
739 #define IWL_TX_DELIMITER_SIZE 4
741 #define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
743 /* Sensitivity and chain noise calibration */
744 #define INITIALIZATION_VALUE 0xFFFF
745 #define CAL_NUM_OF_BEACONS 20
746 #define MAXIMUM_ALLOWED_PATHLOSS 15
748 #define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
750 #define MAX_FA_OFDM 50
751 #define MIN_FA_OFDM 5
752 #define MAX_FA_CCK 50
755 #define AUTO_CORR_STEP_OFDM 1
757 #define AUTO_CORR_STEP_CCK 3
758 #define AUTO_CORR_MAX_TH_CCK 160
761 #define NRG_STEP_CCK 2
763 #define MAX_NUMBER_CCK_NO_FA 100
765 #define AUTO_CORR_CCK_MIN_VAL_DEF (125)
770 #define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
771 #define ALL_BAND_FILTER 0xFF00
772 #define IN_BAND_FILTER 0xFF
773 #define MIN_AVERAGE_NOISE_MAX_VALUE 0xFFFFFFFF
775 #define NRG_NUM_PREV_STAT_L 20
776 #define NUM_RX_CHAINS 3
778 enum iwl4965_false_alarm_state {
781 IWL_FA_GOOD_RANGE = 2,
784 enum iwl4965_chain_noise_state {
785 IWL_CHAIN_NOISE_ALIVE = 0, /* must be 0 */
786 IWL_CHAIN_NOISE_ACCUMULATE,
787 IWL_CHAIN_NOISE_CALIBRATED,
788 IWL_CHAIN_NOISE_DONE,
791 enum iwl4965_calib_enabled_state {
792 IWL_CALIB_DISABLED = 0, /* must be 0 */
793 IWL_CALIB_ENABLED = 1,
799 * defines the order in which results of initial calibrations
800 * should be sent to the runtime uCode
807 IWL_CALIB_TX_IQ_PERD,
812 /* Opaque calibration results */
813 struct iwl_calib_result {
818 #define UCODE_ALIVE_TIMEOUT (5 * HZ)
826 /* Sensitivity calib data */
827 struct iwl_sensitivity_data {
829 u32 auto_corr_ofdm_mrc;
830 u32 auto_corr_ofdm_x1;
831 u32 auto_corr_ofdm_mrc_x1;
833 u32 auto_corr_cck_mrc;
835 u32 last_bad_plcp_cnt_ofdm;
836 u32 last_fa_cnt_ofdm;
837 u32 last_bad_plcp_cnt_cck;
843 u8 nrg_silence_rssi[NRG_NUM_PREV_STAT_L];
848 s32 nrg_auto_corr_silence_diff;
849 u32 num_in_cck_no_fa;
853 /* Chain noise (differential Rx gain) calib data */
854 struct iwl_chain_noise_data {
863 u8 disconn_array[NUM_RX_CHAINS];
864 u8 delta_gain_code[NUM_RX_CHAINS];
869 #define EEPROM_SEM_TIMEOUT 10 /* milliseconds */
870 #define EEPROM_SEM_RETRY_LIMIT 1000 /* number of attempts (not time) */
874 MEASUREMENT_READY = (1 << 0),
875 MEASUREMENT_ACTIVE = (1 << 1),
879 NVM_DEVICE_TYPE_EEPROM = 0,
883 /* interrupt statistics */
884 struct isr_statistics {
894 u32 rx_handlers[REPLY_MAX];
899 #define IWL_MAX_NUM_QUEUES 20 /* FIXME: do dynamic allocation */
903 /* ieee device used by generic ieee processing code */
904 struct ieee80211_hw *hw;
905 struct ieee80211_channel *ieee_channels;
906 struct ieee80211_rate *ieee_rates;
909 /* temporary frame storage list */
910 struct list_head free_frames;
913 enum ieee80211_band band;
916 void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv,
917 struct iwl_rx_mem_buffer *rxb);
919 struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
921 #if defined(CONFIG_IWLWIFI_SPECTRUM_MEASUREMENT) || defined(CONFIG_IWL3945_SPECTRUM_MEASUREMENT)
922 /* spectrum measurement report caching */
923 struct iwl_spectrum_notification measure_report;
924 u8 measurement_status;
926 /* ucode beacon time */
927 u32 ucode_beacon_time;
929 /* we allocate array of iwl4965_channel_info for NIC's valid channels.
930 * Access via channel # using indirect index array */
931 struct iwl_channel_info *channel_info; /* channel info array */
932 u8 channel_count; /* # of channels */
934 /* each calibration channel group in the EEPROM has a derived
935 * clip setting for each rate. 3945 only.*/
936 const struct iwl3945_clip_group clip39_groups[5];
938 /* thermal calibration */
939 s32 temperature; /* degrees Kelvin */
940 s32 last_temperature;
942 /* init calibration results */
943 struct iwl_calib_result calib_results[IWL_CALIB_MAX];
945 /* Scan related variables */
946 unsigned long last_scan_jiffies;
947 unsigned long next_scan_jiffies;
948 unsigned long scan_start;
949 unsigned long scan_pass_start;
950 unsigned long scan_start_tsf;
953 struct cfg80211_scan_request *scan_request;
954 u8 scan_tx_ant[IEEE80211_NUM_BANDS];
958 spinlock_t lock; /* protect general shared data */
959 spinlock_t hcmd_lock; /* protect hcmd */
960 spinlock_t reg_lock; /* protect hw register access */
963 /* basic pci-network driver stuff */
964 struct pci_dev *pci_dev;
966 /* pci hardware address support */
967 void __iomem *hw_base;
972 /* uCode images, save to reload in case of failure */
973 u32 ucode_ver; /* version of ucode, copy of
975 struct fw_desc ucode_code; /* runtime inst */
976 struct fw_desc ucode_data; /* runtime data original */
977 struct fw_desc ucode_data_backup; /* runtime data save/restore */
978 struct fw_desc ucode_init; /* initialization inst */
979 struct fw_desc ucode_init_data; /* initialization data */
980 struct fw_desc ucode_boot; /* bootstrap inst */
981 enum ucode_type ucode_type;
982 u8 ucode_write_complete; /* the image write is complete */
985 struct iwl_rxon_time_cmd rxon_timing;
987 /* We declare this const so it can only be
988 * changed via explicit cast within the
989 * routines that actually update the physical
991 const struct iwl_rxon_cmd active_rxon;
992 struct iwl_rxon_cmd staging_rxon;
994 struct iwl_rxon_cmd recovery_rxon;
996 /* 1st responses from initialize and runtime uCode images.
997 * 4965's initialize alive response contains some calibration data. */
998 struct iwl_init_alive_resp card_alive_init;
999 struct iwl_alive_resp card_alive;
1001 #ifdef CONFIG_IWLWIFI_LEDS
1002 unsigned long last_blink_time;
1006 struct iwl_led led[IWL_LED_TRG_MAX];
1007 unsigned int rxtxpackets;
1010 u16 active_rate_basic;
1012 u8 assoc_station_added;
1014 struct iwl_sensitivity_data sensitivity_data;
1015 struct iwl_chain_noise_data chain_noise_data;
1016 __le16 sensitivity_tbl[HD_TABLE_SIZE];
1018 struct iwl_ht_info current_ht_config;
1019 u8 last_phy_res[100];
1021 /* Rate scaling data */
1022 s8 data_retry_limit;
1025 wait_queue_head_t wait_command_queue;
1027 int activity_timer_active;
1029 /* Rx and Tx DMA processing queues */
1030 struct iwl_rx_queue rxq;
1031 struct iwl_tx_queue txq[IWL_MAX_NUM_QUEUES];
1032 unsigned long txq_ctx_active_msk;
1033 struct iwl_dma_ptr kw; /* keep warm address */
1034 struct iwl_dma_ptr scd_bc_tbls;
1036 u32 scd_base_addr; /* scheduler sram base address */
1038 unsigned long status;
1040 int last_rx_rssi; /* From Rx packet statistics */
1041 int last_rx_noise; /* From beacon statistics */
1043 /* counts mgmt, ctl, and data packets */
1044 struct traffic_stats {
1047 } tx_stats[3], rx_stats[3];
1049 /* counts interrupts */
1050 struct isr_statistics isr_stats;
1052 struct iwl_power_mgr power_data;
1054 struct iwl_notif_statistics statistics;
1055 unsigned long last_statistics_time;
1057 /* context information */
1063 u8 mac_addr[ETH_ALEN];
1065 /*station table variables */
1066 spinlock_t sta_lock;
1068 struct iwl_station_entry stations[IWL_STATION_COUNT];
1069 struct iwl_wep_key wep_keys[WEP_KEYS_MAX];
1072 unsigned long ucode_key_table;
1074 /* queue refcounts */
1075 #define IWL_MAX_HW_QUEUES 32
1076 unsigned long queue_stopped[BITS_TO_LONGS(IWL_MAX_HW_QUEUES)];
1078 atomic_t queue_stop_count[4];
1080 /* Indication if ieee80211_ops->open has been called */
1083 u8 mac80211_registered;
1085 /* Rx'd packet timing information */
1086 u32 last_beacon_time;
1091 int nvm_device_type;
1092 struct iwl_eeprom_calib_info *calib_info;
1094 enum nl80211_iftype iw_mode;
1096 struct sk_buff *ibss_beacon;
1098 /* Last Rx'd beacon timestamp */
1101 struct ieee80211_vif *vif;
1105 dma_addr_t shared_phys;
1107 struct iwl_hw_params hw_params;
1111 dma_addr_t ict_tbl_dma;
1112 dma_addr_t aligned_ict_tbl_dma;
1119 /* Current association information needed to configure the
1122 u16 assoc_capability;
1124 struct iwl_qos_info qos_data;
1126 struct workqueue_struct *workqueue;
1128 struct work_struct up;
1129 struct work_struct restart;
1130 struct work_struct calibrated_work;
1131 struct work_struct scan_completed;
1132 struct work_struct rx_replenish;
1133 struct work_struct abort_scan;
1134 struct work_struct update_link_led;
1135 struct work_struct auth_work;
1136 struct work_struct report_work;
1137 struct work_struct request_scan;
1138 struct work_struct beacon_update;
1140 struct tasklet_struct irq_tasklet;
1142 struct delayed_work init_alive_start;
1143 struct delayed_work alive_start;
1144 struct delayed_work scan_check;
1147 struct delayed_work thermal_periodic;
1148 struct delayed_work rfkill_poll;
1151 s8 tx_power_user_lmt;
1152 s8 tx_power_channel_lmt;
1155 #ifdef CONFIG_IWLWIFI_DEBUG
1156 /* debugging info */
1158 atomic_t restrict_refcnt;
1159 #ifdef CONFIG_IWLWIFI_DEBUGFS
1161 struct iwl_debugfs *dbgfs;
1162 #endif /* CONFIG_IWLWIFI_DEBUGFS */
1163 #endif /* CONFIG_IWLWIFI_DEBUG */
1165 struct work_struct txpower_work;
1166 u32 disable_sens_cal;
1167 u32 disable_chain_noise_cal;
1168 u32 disable_tx_power_cal;
1169 struct work_struct run_time_calib_work;
1170 struct timer_list statistics_periodic;
1173 #define IWL_DEFAULT_TX_POWER 0x0F
1175 struct iwl3945_notif_statistics statistics_39;
1180 static inline void iwl_txq_ctx_activate(struct iwl_priv *priv, int txq_id)
1182 set_bit(txq_id, &priv->txq_ctx_active_msk);
1185 static inline void iwl_txq_ctx_deactivate(struct iwl_priv *priv, int txq_id)
1187 clear_bit(txq_id, &priv->txq_ctx_active_msk);
1190 #ifdef CONFIG_IWLWIFI_DEBUG
1191 const char *iwl_get_tx_fail_reason(u32 status);
1193 static inline const char *iwl_get_tx_fail_reason(u32 status) { return ""; }
1197 static inline struct ieee80211_hdr *iwl_tx_queue_get_hdr(struct iwl_priv *priv,
1198 int txq_id, int idx)
1200 if (priv->txq[txq_id].txb[idx].skb[0])
1201 return (struct ieee80211_hdr *)priv->txq[txq_id].
1202 txb[idx].skb[0]->data;
1207 static inline int iwl_is_associated(struct iwl_priv *priv)
1209 return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
1212 static inline int is_channel_valid(const struct iwl_channel_info *ch_info)
1214 if (ch_info == NULL)
1216 return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
1219 static inline int is_channel_radar(const struct iwl_channel_info *ch_info)
1221 return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
1224 static inline u8 is_channel_a_band(const struct iwl_channel_info *ch_info)
1226 return ch_info->band == IEEE80211_BAND_5GHZ;
1229 static inline u8 is_channel_bg_band(const struct iwl_channel_info *ch_info)
1231 return ch_info->band == IEEE80211_BAND_2GHZ;
1234 static inline int is_channel_passive(const struct iwl_channel_info *ch)
1236 return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
1239 static inline int is_channel_ibss(const struct iwl_channel_info *ch)
1241 return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
1244 #endif /* __iwl_dev_h__ */