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
505 struct iwl_ht_config {
506 /* self configuration data */
510 struct ieee80211_mcs_info mcs;
511 /* BSS related data */
512 u8 extension_chan_offset;
514 u8 non_GF_STA_present;
517 union iwl_qos_capabity {
519 u8 edca_count:4; /* bit 0-3 */
520 u8 q_ack:1; /* bit 4 */
521 u8 queue_request:1; /* bit 5 */
522 u8 txop_request:1; /* bit 6 */
523 u8 reserved:1; /* bit 7 */
526 u8 acvo_APSD:1; /* bit 0 */
527 u8 acvi_APSD:1; /* bit 1 */
528 u8 ac_bk_APSD:1; /* bit 2 */
529 u8 ac_be_APSD:1; /* bit 3 */
530 u8 q_ack:1; /* bit 4 */
531 u8 max_len:2; /* bit 5-6 */
532 u8 more_data_ack:1; /* bit 7 */
538 struct iwl_qos_info {
540 union iwl_qos_capabity qos_cap;
541 struct iwl_qosparam_cmd def_qos_parm;
544 #define STA_PS_STATUS_WAKE 0
545 #define STA_PS_STATUS_SLEEP 1
548 struct iwl3945_station_entry {
549 struct iwl3945_addsta_cmd sta;
550 struct iwl_tid_data tid[MAX_TID_COUNT];
553 struct iwl_hw_key keyinfo;
556 struct iwl_station_entry {
557 struct iwl_addsta_cmd sta;
558 struct iwl_tid_data tid[MAX_TID_COUNT];
561 struct iwl_hw_key keyinfo;
564 /* one for each uCode image (inst/data, boot/init/runtime) */
566 void *v_addr; /* access by driver */
567 dma_addr_t p_addr; /* access by card's busmaster DMA */
571 /* uCode file layout */
572 struct iwl_ucode_header {
573 __le32 ver; /* major/minor/API/serial */
576 __le32 inst_size; /* bytes of runtime code */
577 __le32 data_size; /* bytes of runtime data */
578 __le32 init_size; /* bytes of init code */
579 __le32 init_data_size; /* bytes of init data */
580 __le32 boot_size; /* bytes of bootstrap code */
581 u8 data[0]; /* in same order as sizes */
584 __le32 build; /* build number */
585 __le32 inst_size; /* bytes of runtime code */
586 __le32 data_size; /* bytes of runtime data */
587 __le32 init_size; /* bytes of init code */
588 __le32 init_data_size; /* bytes of init data */
589 __le32 boot_size; /* bytes of bootstrap code */
590 u8 data[0]; /* in same order as sizes */
594 #define UCODE_HEADER_SIZE(ver) ((ver) == 1 ? 24 : 28)
596 struct iwl4965_ibss_seq {
600 unsigned long packet_time;
601 struct list_head list;
604 struct iwl_sensitivity_ranges {
611 u16 auto_corr_min_ofdm;
612 u16 auto_corr_min_ofdm_mrc;
613 u16 auto_corr_min_ofdm_x1;
614 u16 auto_corr_min_ofdm_mrc_x1;
616 u16 auto_corr_max_ofdm;
617 u16 auto_corr_max_ofdm_mrc;
618 u16 auto_corr_max_ofdm_x1;
619 u16 auto_corr_max_ofdm_mrc_x1;
621 u16 auto_corr_max_cck;
622 u16 auto_corr_max_cck_mrc;
623 u16 auto_corr_min_cck;
624 u16 auto_corr_min_cck_mrc;
628 #define KELVIN_TO_CELSIUS(x) ((x)-273)
629 #define CELSIUS_TO_KELVIN(x) ((x)+273)
633 * struct iwl_hw_params
634 * @max_txq_num: Max # Tx queues supported
635 * @dma_chnl_num: Number of Tx DMA/FIFO channels
636 * @scd_bc_tbls_size: size of scheduler byte count tables
637 * @tfd_size: TFD size
638 * @tx/rx_chains_num: Number of TX/RX chains
639 * @valid_tx/rx_ant: usable antennas
640 * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
641 * @max_rxq_log: Log-base-2 of max_rxq_size
642 * @rx_buf_size: Rx buffer size
643 * @rx_wrt_ptr_reg: FH{39}_RSCSR_CHNL0_WPTR
646 * @ht40_channel: is 40MHz width possible in band 2.4
647 * BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ)
648 * @sw_crypto: 0 for hw, 1 for sw
649 * @max_xxx_size: for ucode uses
650 * @ct_kill_threshold: temperature threshold
651 * @calib_init_cfg: setup initial calibrations for the hw
652 * @struct iwl_sensitivity_ranges: range of sensitivity values
654 struct iwl_hw_params {
657 u16 scd_bc_tbls_size;
671 u8 max_beacon_itrvl; /* in 1024 ms */
675 u32 ct_kill_threshold; /* value in hw-dependent units */
676 u32 ct_kill_exit_threshold; /* value in hw-dependent units */
677 /* for 1000, 6000 series and up */
679 const struct iwl_sensitivity_ranges *sens;
683 /******************************************************************************
685 * Functions implemented in core module which are forward declared here
686 * for use by iwl-[4-5].c
688 * NOTE: The implementation of these functions are not hardware specific
689 * which is why they are in the core module files.
691 * Naming convention --
692 * iwl_ <-- Is part of iwlwifi
693 * iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
694 * iwl4965_bg_ <-- Called from work queue context
695 * iwl4965_mac_ <-- mac80211 callback
697 ****************************************************************************/
698 extern void iwl_update_chain_flags(struct iwl_priv *priv);
699 extern int iwl_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src);
700 extern const u8 iwl_bcast_addr[ETH_ALEN];
701 extern int iwl_rxq_stop(struct iwl_priv *priv);
702 extern void iwl_txq_ctx_stop(struct iwl_priv *priv);
703 extern int iwl_queue_space(const struct iwl_queue *q);
704 static inline int iwl_queue_used(const struct iwl_queue *q, int i)
706 return q->write_ptr > q->read_ptr ?
707 (i >= q->read_ptr && i < q->write_ptr) :
708 !(i < q->read_ptr && i >= q->write_ptr);
712 static inline u8 get_cmd_index(struct iwl_queue *q, u32 index, int is_huge)
714 /* This is for scan command, the big buffer at end of command array */
716 return q->n_window; /* must be power of 2 */
718 /* Otherwise, use normal size buffers */
719 return index & (q->n_window - 1);
729 #define IWL_OPERATION_MODE_AUTO 0
730 #define IWL_OPERATION_MODE_HT_ONLY 1
731 #define IWL_OPERATION_MODE_MIXED 2
732 #define IWL_OPERATION_MODE_20MHZ 3
734 #define IWL_TX_CRC_SIZE 4
735 #define IWL_TX_DELIMITER_SIZE 4
737 #define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
739 /* Sensitivity and chain noise calibration */
740 #define INITIALIZATION_VALUE 0xFFFF
741 #define CAL_NUM_OF_BEACONS 20
742 #define MAXIMUM_ALLOWED_PATHLOSS 15
744 #define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
746 #define MAX_FA_OFDM 50
747 #define MIN_FA_OFDM 5
748 #define MAX_FA_CCK 50
751 #define AUTO_CORR_STEP_OFDM 1
753 #define AUTO_CORR_STEP_CCK 3
754 #define AUTO_CORR_MAX_TH_CCK 160
757 #define NRG_STEP_CCK 2
759 #define MAX_NUMBER_CCK_NO_FA 100
761 #define AUTO_CORR_CCK_MIN_VAL_DEF (125)
766 #define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
767 #define ALL_BAND_FILTER 0xFF00
768 #define IN_BAND_FILTER 0xFF
769 #define MIN_AVERAGE_NOISE_MAX_VALUE 0xFFFFFFFF
771 #define NRG_NUM_PREV_STAT_L 20
772 #define NUM_RX_CHAINS 3
774 enum iwl4965_false_alarm_state {
777 IWL_FA_GOOD_RANGE = 2,
780 enum iwl4965_chain_noise_state {
781 IWL_CHAIN_NOISE_ALIVE = 0, /* must be 0 */
782 IWL_CHAIN_NOISE_ACCUMULATE,
783 IWL_CHAIN_NOISE_CALIBRATED,
784 IWL_CHAIN_NOISE_DONE,
787 enum iwl4965_calib_enabled_state {
788 IWL_CALIB_DISABLED = 0, /* must be 0 */
789 IWL_CALIB_ENABLED = 1,
795 * defines the order in which results of initial calibrations
796 * should be sent to the runtime uCode
803 IWL_CALIB_TX_IQ_PERD,
808 /* Opaque calibration results */
809 struct iwl_calib_result {
820 /* Sensitivity calib data */
821 struct iwl_sensitivity_data {
823 u32 auto_corr_ofdm_mrc;
824 u32 auto_corr_ofdm_x1;
825 u32 auto_corr_ofdm_mrc_x1;
827 u32 auto_corr_cck_mrc;
829 u32 last_bad_plcp_cnt_ofdm;
830 u32 last_fa_cnt_ofdm;
831 u32 last_bad_plcp_cnt_cck;
837 u8 nrg_silence_rssi[NRG_NUM_PREV_STAT_L];
842 s32 nrg_auto_corr_silence_diff;
843 u32 num_in_cck_no_fa;
847 /* Chain noise (differential Rx gain) calib data */
848 struct iwl_chain_noise_data {
857 u8 disconn_array[NUM_RX_CHAINS];
858 u8 delta_gain_code[NUM_RX_CHAINS];
863 #define EEPROM_SEM_TIMEOUT 10 /* milliseconds */
864 #define EEPROM_SEM_RETRY_LIMIT 1000 /* number of attempts (not time) */
866 #define IWL_TRAFFIC_ENTRIES (256)
867 #define IWL_TRAFFIC_ENTRY_SIZE (64)
870 MEASUREMENT_READY = (1 << 0),
871 MEASUREMENT_ACTIVE = (1 << 1),
875 NVM_DEVICE_TYPE_EEPROM = 0,
880 * Two types of OTP memory access modes
881 * IWL_OTP_ACCESS_ABSOLUTE - absolute address mode,
882 * based on physical memory addressing
883 * IWL_OTP_ACCESS_RELATIVE - relative address mode,
884 * based on logical memory addressing
886 enum iwl_access_mode {
887 IWL_OTP_ACCESS_ABSOLUTE,
888 IWL_OTP_ACCESS_RELATIVE,
892 * enum iwl_pa_type - Power Amplifier type
893 * @IWL_PA_SYSTEM: based on uCode configuration
894 * @IWL_PA_HYBRID: use both Internal and external PA
895 * @IWL_PA_INTERNAL: use Internal only
903 /* interrupt statistics */
904 struct isr_statistics {
914 u32 rx_handlers[REPLY_MAX];
919 #ifdef CONFIG_IWLWIFI_DEBUGFS
920 /* management statistics */
921 enum iwl_mgmt_stats {
922 MANAGEMENT_ASSOC_REQ = 0,
923 MANAGEMENT_ASSOC_RESP,
924 MANAGEMENT_REASSOC_REQ,
925 MANAGEMENT_REASSOC_RESP,
926 MANAGEMENT_PROBE_REQ,
927 MANAGEMENT_PROBE_RESP,
936 /* control statistics */
937 enum iwl_ctrl_stats {
938 CONTROL_BACK_REQ = 0,
949 struct traffic_stats {
950 u32 mgmt[MANAGEMENT_MAX];
951 u32 ctrl[CONTROL_MAX];
956 struct traffic_stats {
961 #define IWL_MAX_NUM_QUEUES 20 /* FIXME: do dynamic allocation */
965 /* ieee device used by generic ieee processing code */
966 struct ieee80211_hw *hw;
967 struct ieee80211_channel *ieee_channels;
968 struct ieee80211_rate *ieee_rates;
971 /* temporary frame storage list */
972 struct list_head free_frames;
975 enum ieee80211_band band;
978 void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv,
979 struct iwl_rx_mem_buffer *rxb);
981 struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
983 #if defined(CONFIG_IWLWIFI_SPECTRUM_MEASUREMENT) || defined(CONFIG_IWL3945_SPECTRUM_MEASUREMENT)
984 /* spectrum measurement report caching */
985 struct iwl_spectrum_notification measure_report;
986 u8 measurement_status;
988 /* ucode beacon time */
989 u32 ucode_beacon_time;
991 /* we allocate array of iwl4965_channel_info for NIC's valid channels.
992 * Access via channel # using indirect index array */
993 struct iwl_channel_info *channel_info; /* channel info array */
994 u8 channel_count; /* # of channels */
996 /* each calibration channel group in the EEPROM has a derived
997 * clip setting for each rate. 3945 only.*/
998 const struct iwl3945_clip_group clip39_groups[5];
1000 /* thermal calibration */
1001 s32 temperature; /* degrees Kelvin */
1002 s32 last_temperature;
1004 /* init calibration results */
1005 struct iwl_calib_result calib_results[IWL_CALIB_MAX];
1007 /* Scan related variables */
1008 unsigned long last_scan_jiffies;
1009 unsigned long next_scan_jiffies;
1010 unsigned long scan_start;
1011 unsigned long scan_pass_start;
1012 unsigned long scan_start_tsf;
1015 struct cfg80211_scan_request *scan_request;
1016 u8 scan_tx_ant[IEEE80211_NUM_BANDS];
1020 spinlock_t lock; /* protect general shared data */
1021 spinlock_t hcmd_lock; /* protect hcmd */
1022 spinlock_t reg_lock; /* protect hw register access */
1025 /* basic pci-network driver stuff */
1026 struct pci_dev *pci_dev;
1028 /* pci hardware address support */
1029 void __iomem *hw_base;
1034 /* uCode images, save to reload in case of failure */
1035 u32 ucode_ver; /* version of ucode, copy of
1037 struct fw_desc ucode_code; /* runtime inst */
1038 struct fw_desc ucode_data; /* runtime data original */
1039 struct fw_desc ucode_data_backup; /* runtime data save/restore */
1040 struct fw_desc ucode_init; /* initialization inst */
1041 struct fw_desc ucode_init_data; /* initialization data */
1042 struct fw_desc ucode_boot; /* bootstrap inst */
1043 enum ucode_type ucode_type;
1044 u8 ucode_write_complete; /* the image write is complete */
1047 struct iwl_rxon_time_cmd rxon_timing;
1049 /* We declare this const so it can only be
1050 * changed via explicit cast within the
1051 * routines that actually update the physical
1053 const struct iwl_rxon_cmd active_rxon;
1054 struct iwl_rxon_cmd staging_rxon;
1056 struct iwl_rxon_cmd recovery_rxon;
1058 /* 1st responses from initialize and runtime uCode images.
1059 * 4965's initialize alive response contains some calibration data. */
1060 struct iwl_init_alive_resp card_alive_init;
1061 struct iwl_alive_resp card_alive;
1063 #ifdef CONFIG_IWLWIFI_LEDS
1064 unsigned long last_blink_time;
1068 struct iwl_led led[IWL_LED_TRG_MAX];
1069 unsigned int rxtxpackets;
1072 u16 active_rate_basic;
1074 u8 assoc_station_added;
1076 struct iwl_sensitivity_data sensitivity_data;
1077 struct iwl_chain_noise_data chain_noise_data;
1078 __le16 sensitivity_tbl[HD_TABLE_SIZE];
1080 struct iwl_ht_config current_ht_config;
1081 u8 last_phy_res[100];
1083 /* Rate scaling data */
1084 s8 data_retry_limit;
1087 wait_queue_head_t wait_command_queue;
1089 int activity_timer_active;
1091 /* Rx and Tx DMA processing queues */
1092 struct iwl_rx_queue rxq;
1093 struct iwl_tx_queue txq[IWL_MAX_NUM_QUEUES];
1094 unsigned long txq_ctx_active_msk;
1095 struct iwl_dma_ptr kw; /* keep warm address */
1096 struct iwl_dma_ptr scd_bc_tbls;
1098 u32 scd_base_addr; /* scheduler sram base address */
1100 unsigned long status;
1102 int last_rx_rssi; /* From Rx packet statistics */
1103 int last_rx_noise; /* From beacon statistics */
1105 /* counts mgmt, ctl, and data packets */
1106 struct traffic_stats tx_stats;
1107 struct traffic_stats rx_stats;
1109 /* counts interrupts */
1110 struct isr_statistics isr_stats;
1112 struct iwl_power_mgr power_data;
1113 struct iwl_tt_mgmt thermal_throttle;
1115 struct iwl_notif_statistics statistics;
1116 unsigned long last_statistics_time;
1118 /* context information */
1123 u8 mac_addr[ETH_ALEN];
1125 /*station table variables */
1126 spinlock_t sta_lock;
1128 struct iwl_station_entry stations[IWL_STATION_COUNT];
1129 struct iwl_wep_key wep_keys[WEP_KEYS_MAX];
1132 unsigned long ucode_key_table;
1134 /* queue refcounts */
1135 #define IWL_MAX_HW_QUEUES 32
1136 unsigned long queue_stopped[BITS_TO_LONGS(IWL_MAX_HW_QUEUES)];
1138 atomic_t queue_stop_count[4];
1140 /* Indication if ieee80211_ops->open has been called */
1143 u8 mac80211_registered;
1145 /* Rx'd packet timing information */
1146 u32 last_beacon_time;
1151 int nvm_device_type;
1152 struct iwl_eeprom_calib_info *calib_info;
1154 enum nl80211_iftype iw_mode;
1156 struct sk_buff *ibss_beacon;
1158 /* Last Rx'd beacon timestamp */
1161 struct ieee80211_vif *vif;
1165 dma_addr_t shared_phys;
1167 struct iwl_hw_params hw_params;
1171 dma_addr_t ict_tbl_dma;
1172 dma_addr_t aligned_ict_tbl_dma;
1179 /* Current association information needed to configure the
1182 u16 assoc_capability;
1184 struct iwl_qos_info qos_data;
1186 struct workqueue_struct *workqueue;
1188 struct work_struct up;
1189 struct work_struct restart;
1190 struct work_struct calibrated_work;
1191 struct work_struct scan_completed;
1192 struct work_struct rx_replenish;
1193 struct work_struct abort_scan;
1194 struct work_struct update_link_led;
1195 struct work_struct auth_work;
1196 struct work_struct report_work;
1197 struct work_struct request_scan;
1198 struct work_struct beacon_update;
1199 struct work_struct tt_work;
1200 struct work_struct ct_enter;
1201 struct work_struct ct_exit;
1203 struct tasklet_struct irq_tasklet;
1205 struct delayed_work init_alive_start;
1206 struct delayed_work alive_start;
1207 struct delayed_work scan_check;
1210 struct delayed_work thermal_periodic;
1211 struct delayed_work rfkill_poll;
1214 s8 tx_power_user_lmt;
1215 s8 tx_power_device_lmt;
1218 #ifdef CONFIG_IWLWIFI_DEBUG
1219 /* debugging info */
1220 u32 debug_level; /* per device debugging will override global
1221 iwl_debug_level if set */
1223 atomic_t restrict_refcnt;
1225 #ifdef CONFIG_IWLWIFI_DEBUGFS
1231 struct iwl_debugfs *dbgfs;
1232 #endif /* CONFIG_IWLWIFI_DEBUGFS */
1233 #endif /* CONFIG_IWLWIFI_DEBUG */
1235 struct work_struct txpower_work;
1236 u32 disable_sens_cal;
1237 u32 disable_chain_noise_cal;
1238 u32 disable_tx_power_cal;
1239 struct work_struct run_time_calib_work;
1240 struct timer_list statistics_periodic;
1243 #define IWL_DEFAULT_TX_POWER 0x0F
1245 struct iwl3945_notif_statistics statistics_39;
1250 static inline void iwl_txq_ctx_activate(struct iwl_priv *priv, int txq_id)
1252 set_bit(txq_id, &priv->txq_ctx_active_msk);
1255 static inline void iwl_txq_ctx_deactivate(struct iwl_priv *priv, int txq_id)
1257 clear_bit(txq_id, &priv->txq_ctx_active_msk);
1260 #ifdef CONFIG_IWLWIFI_DEBUG
1261 const char *iwl_get_tx_fail_reason(u32 status);
1263 * iwl_get_debug_level: Return active debug level for device
1265 * Using sysfs it is possible to set per device debug level. This debug
1266 * level will be used if set, otherwise the global debug level which can be
1267 * set via module parameter is used.
1269 static inline u32 iwl_get_debug_level(struct iwl_priv *priv)
1271 if (priv->debug_level)
1272 return priv->debug_level;
1274 return iwl_debug_level;
1277 static inline const char *iwl_get_tx_fail_reason(u32 status) { return ""; }
1279 static inline u32 iwl_get_debug_level(struct iwl_priv *priv)
1281 return iwl_debug_level;
1286 static inline struct ieee80211_hdr *iwl_tx_queue_get_hdr(struct iwl_priv *priv,
1287 int txq_id, int idx)
1289 if (priv->txq[txq_id].txb[idx].skb[0])
1290 return (struct ieee80211_hdr *)priv->txq[txq_id].
1291 txb[idx].skb[0]->data;
1296 static inline int iwl_is_associated(struct iwl_priv *priv)
1298 return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
1301 static inline int is_channel_valid(const struct iwl_channel_info *ch_info)
1303 if (ch_info == NULL)
1305 return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
1308 static inline int is_channel_radar(const struct iwl_channel_info *ch_info)
1310 return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
1313 static inline u8 is_channel_a_band(const struct iwl_channel_info *ch_info)
1315 return ch_info->band == IEEE80211_BAND_5GHZ;
1318 static inline u8 is_channel_bg_band(const struct iwl_channel_info *ch_info)
1320 return ch_info->band == IEEE80211_BAND_2GHZ;
1323 static inline int is_channel_passive(const struct iwl_channel_info *ch)
1325 return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
1328 static inline int is_channel_ibss(const struct iwl_channel_info *ch)
1330 return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
1333 #endif /* __iwl_dev_h__ */