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 iwl6000h_2agn_cfg;
60 extern struct iwl_cfg iwl6000i_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 ht40_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 /* HT40 channel info */
295 s8 ht40_max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
296 s8 ht40_curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) */
297 s8 ht40_min_power; /* always 0 */
298 s8 ht40_scan_power; /* (dBm) eeprom, direct scans, any rate */
299 u8 ht40_flags; /* flags copied from EEPROM */
300 u8 ht40_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)
496 * Maximal MPDU density for TX aggregation
502 #define CFG_HT_MPDU_DENSITY_4USEC (0x5)
503 #define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_4USEC
506 /* self configuration data */
508 u8 supported_chan_width;
511 u8 sgf; /* HT_SHORT_GI_* short guard interval */
512 struct ieee80211_mcs_info mcs;
513 /* BSS related data */
514 u8 extension_chan_offset;
516 u8 non_GF_STA_present;
519 union iwl_qos_capabity {
521 u8 edca_count:4; /* bit 0-3 */
522 u8 q_ack:1; /* bit 4 */
523 u8 queue_request:1; /* bit 5 */
524 u8 txop_request:1; /* bit 6 */
525 u8 reserved:1; /* bit 7 */
528 u8 acvo_APSD:1; /* bit 0 */
529 u8 acvi_APSD:1; /* bit 1 */
530 u8 ac_bk_APSD:1; /* bit 2 */
531 u8 ac_be_APSD:1; /* bit 3 */
532 u8 q_ack:1; /* bit 4 */
533 u8 max_len:2; /* bit 5-6 */
534 u8 more_data_ack:1; /* bit 7 */
540 struct iwl_qos_info {
542 union iwl_qos_capabity qos_cap;
543 struct iwl_qosparam_cmd def_qos_parm;
546 #define STA_PS_STATUS_WAKE 0
547 #define STA_PS_STATUS_SLEEP 1
550 struct iwl3945_station_entry {
551 struct iwl3945_addsta_cmd sta;
552 struct iwl_tid_data tid[MAX_TID_COUNT];
555 struct iwl_hw_key keyinfo;
558 struct iwl_station_entry {
559 struct iwl_addsta_cmd sta;
560 struct iwl_tid_data tid[MAX_TID_COUNT];
563 struct iwl_hw_key keyinfo;
566 /* one for each uCode image (inst/data, boot/init/runtime) */
568 void *v_addr; /* access by driver */
569 dma_addr_t p_addr; /* access by card's busmaster DMA */
573 /* uCode file layout */
574 struct iwl_ucode_header {
575 __le32 ver; /* major/minor/API/serial */
578 __le32 inst_size; /* bytes of runtime code */
579 __le32 data_size; /* bytes of runtime data */
580 __le32 init_size; /* bytes of init code */
581 __le32 init_data_size; /* bytes of init data */
582 __le32 boot_size; /* bytes of bootstrap code */
583 u8 data[0]; /* in same order as sizes */
586 __le32 build; /* build number */
587 __le32 inst_size; /* bytes of runtime code */
588 __le32 data_size; /* bytes of runtime data */
589 __le32 init_size; /* bytes of init code */
590 __le32 init_data_size; /* bytes of init data */
591 __le32 boot_size; /* bytes of bootstrap code */
592 u8 data[0]; /* in same order as sizes */
596 #define UCODE_HEADER_SIZE(ver) ((ver) == 1 ? 24 : 28)
598 struct iwl4965_ibss_seq {
602 unsigned long packet_time;
603 struct list_head list;
606 struct iwl_sensitivity_ranges {
613 u16 auto_corr_min_ofdm;
614 u16 auto_corr_min_ofdm_mrc;
615 u16 auto_corr_min_ofdm_x1;
616 u16 auto_corr_min_ofdm_mrc_x1;
618 u16 auto_corr_max_ofdm;
619 u16 auto_corr_max_ofdm_mrc;
620 u16 auto_corr_max_ofdm_x1;
621 u16 auto_corr_max_ofdm_mrc_x1;
623 u16 auto_corr_max_cck;
624 u16 auto_corr_max_cck_mrc;
625 u16 auto_corr_min_cck;
626 u16 auto_corr_min_cck_mrc;
630 #define KELVIN_TO_CELSIUS(x) ((x)-273)
631 #define CELSIUS_TO_KELVIN(x) ((x)+273)
635 * struct iwl_hw_params
636 * @max_txq_num: Max # Tx queues supported
637 * @dma_chnl_num: Number of Tx DMA/FIFO channels
638 * @scd_bc_tbls_size: size of scheduler byte count tables
639 * @tfd_size: TFD size
640 * @tx/rx_chains_num: Number of TX/RX chains
641 * @valid_tx/rx_ant: usable antennas
642 * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
643 * @max_rxq_log: Log-base-2 of max_rxq_size
644 * @rx_buf_size: Rx buffer size
645 * @rx_wrt_ptr_reg: FH{39}_RSCSR_CHNL0_WPTR
648 * @ht40_channel: is 40MHz width possible in band 2.4
649 * BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ)
650 * @sw_crypto: 0 for hw, 1 for sw
651 * @max_xxx_size: for ucode uses
652 * @ct_kill_threshold: temperature threshold
653 * @calib_init_cfg: setup initial calibrations for the hw
654 * @struct iwl_sensitivity_ranges: range of sensitivity values
656 struct iwl_hw_params {
659 u16 scd_bc_tbls_size;
673 u8 max_beacon_itrvl; /* in 1024 ms */
677 u32 ct_kill_threshold; /* value in hw-dependent units */
678 u32 ct_kill_exit_threshold; /* value in hw-dependent units */
679 /* for 1000, 6000 series and up */
681 const struct iwl_sensitivity_ranges *sens;
685 /******************************************************************************
687 * Functions implemented in core module which are forward declared here
688 * for use by iwl-[4-5].c
690 * NOTE: The implementation of these functions are not hardware specific
691 * which is why they are in the core module files.
693 * Naming convention --
694 * iwl_ <-- Is part of iwlwifi
695 * iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
696 * iwl4965_bg_ <-- Called from work queue context
697 * iwl4965_mac_ <-- mac80211 callback
699 ****************************************************************************/
700 extern void iwl_update_chain_flags(struct iwl_priv *priv);
701 extern int iwl_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src);
702 extern const u8 iwl_bcast_addr[ETH_ALEN];
703 extern int iwl_rxq_stop(struct iwl_priv *priv);
704 extern void iwl_txq_ctx_stop(struct iwl_priv *priv);
705 extern int iwl_queue_space(const struct iwl_queue *q);
706 static inline int iwl_queue_used(const struct iwl_queue *q, int i)
708 return q->write_ptr > q->read_ptr ?
709 (i >= q->read_ptr && i < q->write_ptr) :
710 !(i < q->read_ptr && i >= q->write_ptr);
714 static inline u8 get_cmd_index(struct iwl_queue *q, u32 index, int is_huge)
716 /* This is for scan command, the big buffer at end of command array */
718 return q->n_window; /* must be power of 2 */
720 /* Otherwise, use normal size buffers */
721 return index & (q->n_window - 1);
731 #define HT_SHORT_GI_20MHZ (1 << 0)
732 #define HT_SHORT_GI_40MHZ (1 << 1)
734 #define IWL_CHANNEL_WIDTH_20MHZ 0
735 #define IWL_CHANNEL_WIDTH_40MHZ 1
737 #define IWL_OPERATION_MODE_AUTO 0
738 #define IWL_OPERATION_MODE_HT_ONLY 1
739 #define IWL_OPERATION_MODE_MIXED 2
740 #define IWL_OPERATION_MODE_20MHZ 3
742 #define IWL_TX_CRC_SIZE 4
743 #define IWL_TX_DELIMITER_SIZE 4
745 #define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
747 /* Sensitivity and chain noise calibration */
748 #define INITIALIZATION_VALUE 0xFFFF
749 #define CAL_NUM_OF_BEACONS 20
750 #define MAXIMUM_ALLOWED_PATHLOSS 15
752 #define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
754 #define MAX_FA_OFDM 50
755 #define MIN_FA_OFDM 5
756 #define MAX_FA_CCK 50
759 #define AUTO_CORR_STEP_OFDM 1
761 #define AUTO_CORR_STEP_CCK 3
762 #define AUTO_CORR_MAX_TH_CCK 160
765 #define NRG_STEP_CCK 2
767 #define MAX_NUMBER_CCK_NO_FA 100
769 #define AUTO_CORR_CCK_MIN_VAL_DEF (125)
774 #define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
775 #define ALL_BAND_FILTER 0xFF00
776 #define IN_BAND_FILTER 0xFF
777 #define MIN_AVERAGE_NOISE_MAX_VALUE 0xFFFFFFFF
779 #define NRG_NUM_PREV_STAT_L 20
780 #define NUM_RX_CHAINS 3
782 enum iwl4965_false_alarm_state {
785 IWL_FA_GOOD_RANGE = 2,
788 enum iwl4965_chain_noise_state {
789 IWL_CHAIN_NOISE_ALIVE = 0, /* must be 0 */
790 IWL_CHAIN_NOISE_ACCUMULATE,
791 IWL_CHAIN_NOISE_CALIBRATED,
792 IWL_CHAIN_NOISE_DONE,
795 enum iwl4965_calib_enabled_state {
796 IWL_CALIB_DISABLED = 0, /* must be 0 */
797 IWL_CALIB_ENABLED = 1,
803 * defines the order in which results of initial calibrations
804 * should be sent to the runtime uCode
811 IWL_CALIB_TX_IQ_PERD,
816 /* Opaque calibration results */
817 struct iwl_calib_result {
828 /* Sensitivity calib data */
829 struct iwl_sensitivity_data {
831 u32 auto_corr_ofdm_mrc;
832 u32 auto_corr_ofdm_x1;
833 u32 auto_corr_ofdm_mrc_x1;
835 u32 auto_corr_cck_mrc;
837 u32 last_bad_plcp_cnt_ofdm;
838 u32 last_fa_cnt_ofdm;
839 u32 last_bad_plcp_cnt_cck;
845 u8 nrg_silence_rssi[NRG_NUM_PREV_STAT_L];
850 s32 nrg_auto_corr_silence_diff;
851 u32 num_in_cck_no_fa;
855 /* Chain noise (differential Rx gain) calib data */
856 struct iwl_chain_noise_data {
865 u8 disconn_array[NUM_RX_CHAINS];
866 u8 delta_gain_code[NUM_RX_CHAINS];
871 #define EEPROM_SEM_TIMEOUT 10 /* milliseconds */
872 #define EEPROM_SEM_RETRY_LIMIT 1000 /* number of attempts (not time) */
874 #define IWL_TRAFFIC_ENTRIES (256)
875 #define IWL_TRAFFIC_ENTRY_SIZE (64)
878 MEASUREMENT_READY = (1 << 0),
879 MEASUREMENT_ACTIVE = (1 << 1),
883 NVM_DEVICE_TYPE_EEPROM = 0,
888 * Two types of OTP memory access modes
889 * IWL_OTP_ACCESS_ABSOLUTE - absolute address mode,
890 * based on physical memory addressing
891 * IWL_OTP_ACCESS_RELATIVE - relative address mode,
892 * based on logical memory addressing
894 enum iwl_access_mode {
895 IWL_OTP_ACCESS_ABSOLUTE,
896 IWL_OTP_ACCESS_RELATIVE,
900 * enum iwl_pa_type - Power Amplifier type
901 * @IWL_PA_SYSTEM: based on uCode configuration
902 * @IWL_PA_HYBRID: use both Internal and external PA
903 * @IWL_PA_INTERNAL: use Internal only
911 /* interrupt statistics */
912 struct isr_statistics {
922 u32 rx_handlers[REPLY_MAX];
927 #ifdef CONFIG_IWLWIFI_DEBUGFS
928 /* management statistics */
929 enum iwl_mgmt_stats {
930 MANAGEMENT_ASSOC_REQ = 0,
931 MANAGEMENT_ASSOC_RESP,
932 MANAGEMENT_REASSOC_REQ,
933 MANAGEMENT_REASSOC_RESP,
934 MANAGEMENT_PROBE_REQ,
935 MANAGEMENT_PROBE_RESP,
944 /* control statistics */
945 enum iwl_ctrl_stats {
946 CONTROL_BACK_REQ = 0,
957 struct traffic_stats {
958 u32 mgmt[MANAGEMENT_MAX];
959 u32 ctrl[CONTROL_MAX];
964 struct traffic_stats {
969 #define IWL_MAX_NUM_QUEUES 20 /* FIXME: do dynamic allocation */
973 /* ieee device used by generic ieee processing code */
974 struct ieee80211_hw *hw;
975 struct ieee80211_channel *ieee_channels;
976 struct ieee80211_rate *ieee_rates;
979 /* temporary frame storage list */
980 struct list_head free_frames;
983 enum ieee80211_band band;
986 void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv,
987 struct iwl_rx_mem_buffer *rxb);
989 struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
991 #if defined(CONFIG_IWLWIFI_SPECTRUM_MEASUREMENT) || defined(CONFIG_IWL3945_SPECTRUM_MEASUREMENT)
992 /* spectrum measurement report caching */
993 struct iwl_spectrum_notification measure_report;
994 u8 measurement_status;
996 /* ucode beacon time */
997 u32 ucode_beacon_time;
999 /* we allocate array of iwl4965_channel_info for NIC's valid channels.
1000 * Access via channel # using indirect index array */
1001 struct iwl_channel_info *channel_info; /* channel info array */
1002 u8 channel_count; /* # of channels */
1004 /* each calibration channel group in the EEPROM has a derived
1005 * clip setting for each rate. 3945 only.*/
1006 const struct iwl3945_clip_group clip39_groups[5];
1008 /* thermal calibration */
1009 s32 temperature; /* degrees Kelvin */
1010 s32 last_temperature;
1012 /* init calibration results */
1013 struct iwl_calib_result calib_results[IWL_CALIB_MAX];
1015 /* Scan related variables */
1016 unsigned long last_scan_jiffies;
1017 unsigned long next_scan_jiffies;
1018 unsigned long scan_start;
1019 unsigned long scan_pass_start;
1020 unsigned long scan_start_tsf;
1023 struct cfg80211_scan_request *scan_request;
1024 u8 scan_tx_ant[IEEE80211_NUM_BANDS];
1028 spinlock_t lock; /* protect general shared data */
1029 spinlock_t hcmd_lock; /* protect hcmd */
1030 spinlock_t reg_lock; /* protect hw register access */
1033 /* basic pci-network driver stuff */
1034 struct pci_dev *pci_dev;
1036 /* pci hardware address support */
1037 void __iomem *hw_base;
1042 /* uCode images, save to reload in case of failure */
1043 u32 ucode_ver; /* version of ucode, copy of
1045 struct fw_desc ucode_code; /* runtime inst */
1046 struct fw_desc ucode_data; /* runtime data original */
1047 struct fw_desc ucode_data_backup; /* runtime data save/restore */
1048 struct fw_desc ucode_init; /* initialization inst */
1049 struct fw_desc ucode_init_data; /* initialization data */
1050 struct fw_desc ucode_boot; /* bootstrap inst */
1051 enum ucode_type ucode_type;
1052 u8 ucode_write_complete; /* the image write is complete */
1055 struct iwl_rxon_time_cmd rxon_timing;
1057 /* We declare this const so it can only be
1058 * changed via explicit cast within the
1059 * routines that actually update the physical
1061 const struct iwl_rxon_cmd active_rxon;
1062 struct iwl_rxon_cmd staging_rxon;
1064 struct iwl_rxon_cmd recovery_rxon;
1066 /* 1st responses from initialize and runtime uCode images.
1067 * 4965's initialize alive response contains some calibration data. */
1068 struct iwl_init_alive_resp card_alive_init;
1069 struct iwl_alive_resp card_alive;
1071 #ifdef CONFIG_IWLWIFI_LEDS
1072 unsigned long last_blink_time;
1076 struct iwl_led led[IWL_LED_TRG_MAX];
1077 unsigned int rxtxpackets;
1080 u16 active_rate_basic;
1082 u8 assoc_station_added;
1084 struct iwl_sensitivity_data sensitivity_data;
1085 struct iwl_chain_noise_data chain_noise_data;
1086 __le16 sensitivity_tbl[HD_TABLE_SIZE];
1088 struct iwl_ht_info current_ht_config;
1089 u8 last_phy_res[100];
1091 /* Rate scaling data */
1092 s8 data_retry_limit;
1095 wait_queue_head_t wait_command_queue;
1097 int activity_timer_active;
1099 /* Rx and Tx DMA processing queues */
1100 struct iwl_rx_queue rxq;
1101 struct iwl_tx_queue txq[IWL_MAX_NUM_QUEUES];
1102 unsigned long txq_ctx_active_msk;
1103 struct iwl_dma_ptr kw; /* keep warm address */
1104 struct iwl_dma_ptr scd_bc_tbls;
1106 u32 scd_base_addr; /* scheduler sram base address */
1108 unsigned long status;
1110 int last_rx_rssi; /* From Rx packet statistics */
1111 int last_rx_noise; /* From beacon statistics */
1113 /* counts mgmt, ctl, and data packets */
1114 struct traffic_stats tx_stats;
1115 struct traffic_stats rx_stats;
1117 /* counts interrupts */
1118 struct isr_statistics isr_stats;
1120 struct iwl_power_mgr power_data;
1121 struct iwl_tt_mgmt thermal_throttle;
1123 struct iwl_notif_statistics statistics;
1124 unsigned long last_statistics_time;
1126 /* context information */
1131 u8 mac_addr[ETH_ALEN];
1133 /*station table variables */
1134 spinlock_t sta_lock;
1136 struct iwl_station_entry stations[IWL_STATION_COUNT];
1137 struct iwl_wep_key wep_keys[WEP_KEYS_MAX];
1140 unsigned long ucode_key_table;
1142 /* queue refcounts */
1143 #define IWL_MAX_HW_QUEUES 32
1144 unsigned long queue_stopped[BITS_TO_LONGS(IWL_MAX_HW_QUEUES)];
1146 atomic_t queue_stop_count[4];
1148 /* Indication if ieee80211_ops->open has been called */
1151 u8 mac80211_registered;
1153 /* Rx'd packet timing information */
1154 u32 last_beacon_time;
1159 int nvm_device_type;
1160 struct iwl_eeprom_calib_info *calib_info;
1162 enum nl80211_iftype iw_mode;
1164 struct sk_buff *ibss_beacon;
1166 /* Last Rx'd beacon timestamp */
1169 struct ieee80211_vif *vif;
1173 dma_addr_t shared_phys;
1175 struct iwl_hw_params hw_params;
1179 dma_addr_t ict_tbl_dma;
1180 dma_addr_t aligned_ict_tbl_dma;
1187 /* Current association information needed to configure the
1190 u16 assoc_capability;
1192 struct iwl_qos_info qos_data;
1194 struct workqueue_struct *workqueue;
1196 struct work_struct up;
1197 struct work_struct restart;
1198 struct work_struct calibrated_work;
1199 struct work_struct scan_completed;
1200 struct work_struct rx_replenish;
1201 struct work_struct abort_scan;
1202 struct work_struct update_link_led;
1203 struct work_struct auth_work;
1204 struct work_struct report_work;
1205 struct work_struct request_scan;
1206 struct work_struct beacon_update;
1207 struct work_struct tt_work;
1208 struct work_struct ct_enter;
1209 struct work_struct ct_exit;
1211 struct tasklet_struct irq_tasklet;
1213 struct delayed_work init_alive_start;
1214 struct delayed_work alive_start;
1215 struct delayed_work scan_check;
1218 struct delayed_work thermal_periodic;
1219 struct delayed_work rfkill_poll;
1222 s8 tx_power_user_lmt;
1223 s8 tx_power_channel_lmt;
1226 #ifdef CONFIG_IWLWIFI_DEBUG
1227 /* debugging info */
1228 u32 debug_level; /* per device debugging will override global
1229 iwl_debug_level if set */
1231 atomic_t restrict_refcnt;
1233 #ifdef CONFIG_IWLWIFI_DEBUGFS
1239 struct iwl_debugfs *dbgfs;
1240 #endif /* CONFIG_IWLWIFI_DEBUGFS */
1241 #endif /* CONFIG_IWLWIFI_DEBUG */
1243 struct work_struct txpower_work;
1244 u32 disable_sens_cal;
1245 u32 disable_chain_noise_cal;
1246 u32 disable_tx_power_cal;
1247 struct work_struct run_time_calib_work;
1248 struct timer_list statistics_periodic;
1251 #define IWL_DEFAULT_TX_POWER 0x0F
1253 struct iwl3945_notif_statistics statistics_39;
1258 static inline void iwl_txq_ctx_activate(struct iwl_priv *priv, int txq_id)
1260 set_bit(txq_id, &priv->txq_ctx_active_msk);
1263 static inline void iwl_txq_ctx_deactivate(struct iwl_priv *priv, int txq_id)
1265 clear_bit(txq_id, &priv->txq_ctx_active_msk);
1268 #ifdef CONFIG_IWLWIFI_DEBUG
1269 const char *iwl_get_tx_fail_reason(u32 status);
1271 * iwl_get_debug_level: Return active debug level for device
1273 * Using sysfs it is possible to set per device debug level. This debug
1274 * level will be used if set, otherwise the global debug level which can be
1275 * set via module parameter is used.
1277 static inline u32 iwl_get_debug_level(struct iwl_priv *priv)
1279 if (priv->debug_level)
1280 return priv->debug_level;
1282 return iwl_debug_level;
1285 static inline const char *iwl_get_tx_fail_reason(u32 status) { return ""; }
1287 static inline u32 iwl_get_debug_level(struct iwl_priv *priv)
1289 return iwl_debug_level;
1294 static inline struct ieee80211_hdr *iwl_tx_queue_get_hdr(struct iwl_priv *priv,
1295 int txq_id, int idx)
1297 if (priv->txq[txq_id].txb[idx].skb[0])
1298 return (struct ieee80211_hdr *)priv->txq[txq_id].
1299 txb[idx].skb[0]->data;
1304 static inline int iwl_is_associated(struct iwl_priv *priv)
1306 return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
1309 static inline int is_channel_valid(const struct iwl_channel_info *ch_info)
1311 if (ch_info == NULL)
1313 return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
1316 static inline int is_channel_radar(const struct iwl_channel_info *ch_info)
1318 return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
1321 static inline u8 is_channel_a_band(const struct iwl_channel_info *ch_info)
1323 return ch_info->band == IEEE80211_BAND_5GHZ;
1326 static inline u8 is_channel_bg_band(const struct iwl_channel_info *ch_info)
1328 return ch_info->band == IEEE80211_BAND_2GHZ;
1331 static inline int is_channel_passive(const struct iwl_channel_info *ch)
1333 return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
1336 static inline int is_channel_ibss(const struct iwl_channel_info *ch)
1338 return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
1341 #endif /* __iwl_dev_h__ */