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"
47 #include "iwl-power.h"
48 #include "iwl-agn-rs.h"
50 /* configuration for the iwl4965 */
51 extern struct iwl_cfg iwl4965_agn_cfg
;
52 extern struct iwl_cfg iwl5300_agn_cfg
;
53 extern struct iwl_cfg iwl5100_agn_cfg
;
54 extern struct iwl_cfg iwl5350_agn_cfg
;
55 extern struct iwl_cfg iwl5100_bg_cfg
;
56 extern struct iwl_cfg iwl5100_abg_cfg
;
57 extern struct iwl_cfg iwl5150_agn_cfg
;
58 extern struct iwl_cfg iwl6000i_2agn_cfg
;
59 extern struct iwl_cfg iwl6000i_2abg_cfg
;
60 extern struct iwl_cfg iwl6000i_2bg_cfg
;
61 extern struct iwl_cfg iwl6000_3agn_cfg
;
62 extern struct iwl_cfg iwl6050_2agn_cfg
;
63 extern struct iwl_cfg iwl6050_2abg_cfg
;
64 extern struct iwl_cfg iwl1000_bgn_cfg
;
65 extern struct iwl_cfg iwl1000_bg_cfg
;
69 /* shared structures from iwl-5000.c */
70 extern struct iwl_mod_params iwl50_mod_params
;
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 void iwl5000_nic_config(struct iwl_priv
*priv
);
85 extern u16
iwl5000_eeprom_calib_version(struct iwl_priv
*priv
);
86 extern const u8
*iwl5000_eeprom_query_addr(const struct iwl_priv
*priv
,
88 extern void iwl5000_txq_update_byte_cnt_tbl(struct iwl_priv
*priv
,
89 struct iwl_tx_queue
*txq
,
91 extern void iwl5000_txq_inval_byte_cnt_tbl(struct iwl_priv
*priv
,
92 struct iwl_tx_queue
*txq
);
93 extern int iwl5000_load_ucode(struct iwl_priv
*priv
);
94 extern void iwl5000_init_alive_start(struct iwl_priv
*priv
);
95 extern int iwl5000_alive_notify(struct iwl_priv
*priv
);
96 extern int iwl5000_hw_set_hw_params(struct iwl_priv
*priv
);
97 extern int iwl5000_txq_agg_enable(struct iwl_priv
*priv
, int txq_id
,
98 int tx_fifo
, int sta_id
, int tid
, u16 ssn_idx
);
99 extern int iwl5000_txq_agg_disable(struct iwl_priv
*priv
, u16 txq_id
,
100 u16 ssn_idx
, u8 tx_fifo
);
101 extern void iwl5000_txq_set_sched(struct iwl_priv
*priv
, u32 mask
);
102 extern void iwl5000_setup_deferred_work(struct iwl_priv
*priv
);
103 extern void iwl5000_rx_handler_setup(struct iwl_priv
*priv
);
104 extern int iwl5000_hw_valid_rtc_data_addr(u32 addr
);
105 extern int iwl5000_send_tx_power(struct iwl_priv
*priv
);
106 extern void iwl5000_temperature(struct iwl_priv
*priv
);
108 /* CT-KILL constants */
109 #define CT_KILL_THRESHOLD_LEGACY 110 /* in Celsius */
110 #define CT_KILL_THRESHOLD 114 /* in Celsius */
111 #define CT_KILL_EXIT_THRESHOLD 95 /* in Celsius */
113 /* Default noise level to report when noise measurement is not available.
114 * This may be because we're:
115 * 1) Not associated (4965, no beacon statistics being sent to driver)
116 * 2) Scanning (noise measurement does not apply to associated channel)
117 * 3) Receiving CCK (3945 delivers noise info only for OFDM frames)
118 * Use default noise value of -127 ... this is below the range of measurable
119 * Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
120 * Also, -127 works better than 0 when averaging frames with/without
121 * noise info (e.g. averaging might be done in app); measured dBm values are
122 * always negative ... using a negative value as the default keeps all
123 * averages within an s8's (used in some apps) range of negative values. */
124 #define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
127 * RTS threshold here is total size [2347] minus 4 FCS bytes
129 * a value of 0 means RTS on all data/management packets
130 * a value > max MSDU size means no RTS
131 * else RTS for data/management frames where MPDU is larger
134 #define DEFAULT_RTS_THRESHOLD 2347U
135 #define MIN_RTS_THRESHOLD 0U
136 #define MAX_RTS_THRESHOLD 2347U
137 #define MAX_MSDU_SIZE 2304U
138 #define MAX_MPDU_SIZE 2346U
139 #define DEFAULT_BEACON_INTERVAL 100U
140 #define DEFAULT_SHORT_RETRY_LIMIT 7U
141 #define DEFAULT_LONG_RETRY_LIMIT 4U
143 struct iwl_rx_mem_buffer
{
146 struct list_head list
;
149 #define rxb_addr(r) page_address(r->page)
152 struct iwl_device_cmd
;
154 struct iwl_cmd_meta
{
155 /* only for SYNC commands, iff the reply skb is wanted */
156 struct iwl_host_cmd
*source
;
158 * only for ASYNC commands
159 * (which is somewhat stupid -- look at iwl-sta.c for instance
160 * which duplicates a bunch of code because the callback isn't
161 * invoked for SYNC commands, if it were and its result passed
162 * through it would be simpler...)
164 void (*callback
)(struct iwl_priv
*priv
,
165 struct iwl_device_cmd
*cmd
,
166 struct iwl_rx_packet
*pkt
);
168 /* The CMD_SIZE_HUGE flag bit indicates that the command
169 * structure is stored at the end of the shared queue memory. */
172 DECLARE_PCI_UNMAP_ADDR(mapping
)
173 DECLARE_PCI_UNMAP_LEN(len
)
177 * Generic queue structure
179 * Contains common data for Rx and Tx queues
182 int n_bd
; /* number of BDs in this queue */
183 int write_ptr
; /* 1-st empty entry (index) host_w*/
184 int read_ptr
; /* last used entry (index) host_r*/
185 dma_addr_t dma_addr
; /* physical addr for BD's */
186 int n_window
; /* safe queue window */
188 int low_mark
; /* low watermark, resume queue if free
189 * space more than this */
190 int high_mark
; /* high watermark, stop queue if free
191 * space less than this */
192 } __attribute__ ((packed
));
194 /* One for each TFD */
196 struct sk_buff
*skb
[IWL_NUM_OF_TBS
- 1];
200 * struct iwl_tx_queue - Tx Queue for DMA
201 * @q: generic Rx/Tx queue descriptor
202 * @bd: base of circular buffer of TFDs
203 * @cmd: array of command/TX buffer pointers
204 * @meta: array of meta data for each command/tx buffer
205 * @dma_addr_cmd: physical address of cmd/tx buffer array
206 * @txb: array of per-TFD driver data
207 * @need_update: indicates need to update read/write index
208 * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
210 * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
211 * descriptors) and required locking structures.
213 #define TFD_TX_CMD_SLOTS 256
214 #define TFD_CMD_SLOTS 32
216 struct iwl_tx_queue
{
219 struct iwl_device_cmd
**cmd
;
220 struct iwl_cmd_meta
*meta
;
221 struct iwl_tx_info
*txb
;
228 #define IWL_NUM_SCAN_RATES (2)
230 struct iwl4965_channel_tgd_info
{
235 struct iwl4965_channel_tgh_info
{
239 #define IWL4965_MAX_RATE (33)
241 struct iwl3945_clip_group
{
242 /* maximum power level to prevent clipping for each rate, derived by
243 * us from this band's saturation power in EEPROM */
244 const s8 clip_powers
[IWL_MAX_RATES
];
247 /* current Tx power values to use, one for each rate for each channel.
248 * requested power is limited by:
249 * -- regulatory EEPROM limits for this channel
250 * -- hardware capabilities (clip-powers)
251 * -- spectrum management
252 * -- user preference (e.g. iwconfig)
253 * when requested power is set, base power index must also be set. */
254 struct iwl3945_channel_power_info
{
255 struct iwl3945_tx_power tpc
; /* actual radio and DSP gain settings */
256 s8 power_table_index
; /* actual (compenst'd) index into gain table */
257 s8 base_power_index
; /* gain index for power at factory temp. */
258 s8 requested_power
; /* power (dBm) requested for this chnl/rate */
261 /* current scan Tx power values to use, one for each scan rate for each
263 struct iwl3945_scan_power_info
{
264 struct iwl3945_tx_power tpc
; /* actual radio and DSP gain settings */
265 s8 power_table_index
; /* actual (compenst'd) index into gain table */
266 s8 requested_power
; /* scan pwr (dBm) requested for chnl/rate */
270 * One for each channel, holds all channel setup data
271 * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
274 struct iwl_channel_info
{
275 struct iwl4965_channel_tgd_info tgd
;
276 struct iwl4965_channel_tgh_info tgh
;
277 struct iwl_eeprom_channel eeprom
; /* EEPROM regulatory limit */
278 struct iwl_eeprom_channel ht40_eeprom
; /* EEPROM regulatory limit for
281 u8 channel
; /* channel number */
282 u8 flags
; /* flags copied from EEPROM */
283 s8 max_power_avg
; /* (dBm) regul. eeprom, normal Tx, any rate */
284 s8 curr_txpow
; /* (dBm) regulatory/spectrum/user (not h/w) limit */
285 s8 min_power
; /* always 0 */
286 s8 scan_power
; /* (dBm) regul. eeprom, direct scans, any rate */
288 u8 group_index
; /* 0-4, maps channel to group1/2/3/4/5 */
289 u8 band_index
; /* 0-4, maps channel to band1/2/3/4/5 */
290 enum ieee80211_band band
;
292 /* HT40 channel info */
293 s8 ht40_max_power_avg
; /* (dBm) regul. eeprom, normal Tx, any rate */
294 u8 ht40_flags
; /* flags copied from EEPROM */
295 u8 ht40_extension_channel
; /* HT_IE_EXT_CHANNEL_* */
297 /* Radio/DSP gain settings for each "normal" data Tx rate.
298 * These include, in addition to RF and DSP gain, a few fields for
299 * remembering/modifying gain settings (indexes). */
300 struct iwl3945_channel_power_info power_info
[IWL4965_MAX_RATE
];
302 /* Radio/DSP gain settings for each scan rate, for directed scans. */
303 struct iwl3945_scan_power_info scan_pwr_info
[IWL_NUM_SCAN_RATES
];
306 #define IWL_TX_FIFO_AC0 0
307 #define IWL_TX_FIFO_AC1 1
308 #define IWL_TX_FIFO_AC2 2
309 #define IWL_TX_FIFO_AC3 3
310 #define IWL_TX_FIFO_HCCA_1 5
311 #define IWL_TX_FIFO_HCCA_2 6
312 #define IWL_TX_FIFO_NONE 7
314 /* Minimum number of queues. MAX_NUM is defined in hw specific files.
315 * Set the minimum to accommodate the 4 standard TX queues, 1 command
316 * queue, 2 (unused) HCCA queues, and 4 HT queues (one for each AC) */
317 #define IWL_MIN_NUM_QUEUES 10
320 * Queue #4 is the command queue for 3945/4965/5x00/1000/6x00,
321 * the driver maps it into the appropriate device FIFO for the
324 #define IWL_CMD_QUEUE_NUM 4
326 /* Power management (not Tx power) structures */
333 #define IEEE80211_DATA_LEN 2304
334 #define IEEE80211_4ADDR_LEN 30
335 #define IEEE80211_HLEN (IEEE80211_4ADDR_LEN)
336 #define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
340 struct ieee80211_hdr frame
;
341 struct iwl_tx_beacon_cmd beacon
;
342 u8 raw
[IEEE80211_FRAME_LEN
];
345 struct list_head list
;
348 #define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
349 #define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
350 #define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
356 CMD_SIZE_HUGE
= (1 << 0),
357 CMD_ASYNC
= (1 << 1),
358 CMD_WANT_SKB
= (1 << 2),
361 #define DEF_CMD_PAYLOAD_SIZE 320
364 * IWL_LINK_HDR_MAX should include ieee80211_hdr, radiotap header,
365 * SNAP header and alignment. It should also be big enough for 802.11
368 #define IWL_LINK_HDR_MAX 64
371 * struct iwl_device_cmd
373 * For allocation of the command and tx queues, this establishes the overall
374 * size of the largest command we send to uCode, except for a scan command
375 * (which is relatively huge; space is allocated separately).
377 struct iwl_device_cmd
{
378 struct iwl_cmd_header hdr
; /* uCode API */
384 struct iwl_tx_cmd tx
;
385 struct iwl6000_channel_switch_cmd chswitch
;
386 u8 payload
[DEF_CMD_PAYLOAD_SIZE
];
387 } __attribute__ ((packed
)) cmd
;
388 } __attribute__ ((packed
));
390 #define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_device_cmd))
393 struct iwl_host_cmd
{
395 unsigned long reply_page
;
396 void (*callback
)(struct iwl_priv
*priv
,
397 struct iwl_device_cmd
*cmd
,
398 struct iwl_rx_packet
*pkt
);
404 #define SUP_RATE_11A_MAX_NUM_CHANNELS 8
405 #define SUP_RATE_11B_MAX_NUM_CHANNELS 4
406 #define SUP_RATE_11G_MAX_NUM_CHANNELS 12
409 * struct iwl_rx_queue - Rx queue
410 * @bd: driver's pointer to buffer of receive buffer descriptors (rbd)
411 * @dma_addr: bus address of buffer of receive buffer descriptors (rbd)
412 * @read: Shared index to newest available Rx buffer
413 * @write: Shared index to oldest written Rx packet
414 * @free_count: Number of pre-allocated buffers in rx_free
415 * @rx_free: list of free SKBs for use
416 * @rx_used: List of Rx buffers with no SKB
417 * @need_update: flag to indicate we need to update read/write index
418 * @rb_stts: driver's pointer to receive buffer status
419 * @rb_stts_dma: bus address of receive buffer status
421 * NOTE: rx_free and rx_used are used as a FIFO for iwl_rx_mem_buffers
423 struct iwl_rx_queue
{
426 struct iwl_rx_mem_buffer pool
[RX_QUEUE_SIZE
+ RX_FREE_BUFFERS
];
427 struct iwl_rx_mem_buffer
*queue
[RX_QUEUE_SIZE
];
432 struct list_head rx_free
;
433 struct list_head rx_used
;
435 struct iwl_rb_status
*rb_stts
;
436 dma_addr_t rb_stts_dma
;
440 #define IWL_SUPPORTED_RATES_IE_LEN 8
442 #define MAX_TID_COUNT 9
444 #define IWL_INVALID_RATE 0xFF
445 #define IWL_INVALID_VALUE -1
448 * struct iwl_ht_agg -- aggregation status while waiting for block-ack
449 * @txq_id: Tx queue used for Tx attempt
450 * @frame_count: # frames attempted by Tx command
451 * @wait_for_ba: Expect block-ack before next Tx reply
452 * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window
453 * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window
454 * @bitmap1: High order, one bit for each frame pending ACK in Tx window
455 * @rate_n_flags: Rate at which Tx was attempted
457 * If REPLY_TX indicates that aggregation was attempted, driver must wait
458 * for block ack (REPLY_COMPRESSED_BA). This struct stores tx reply info
459 * until block ack arrives.
468 #define IWL_AGG_OFF 0
470 #define IWL_EMPTYING_HW_QUEUE_ADDBA 2
471 #define IWL_EMPTYING_HW_QUEUE_DELBA 3
476 struct iwl_tid_data
{
479 struct iwl_ht_agg agg
;
483 enum ieee80211_key_alg alg
;
489 union iwl_ht_rate_supp
{
497 #define CFG_HT_RX_AMPDU_FACTOR_DEF (0x3)
500 * Maximal MPDU density for TX aggregation
506 #define CFG_HT_MPDU_DENSITY_4USEC (0x5)
507 #define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_4USEC
509 struct iwl_ht_config
{
510 /* self configuration data */
513 bool single_chain_sufficient
;
515 /* BSS related data */
516 u8 extension_chan_offset
;
518 u8 non_GF_STA_present
;
521 union iwl_qos_capabity
{
523 u8 edca_count
:4; /* bit 0-3 */
524 u8 q_ack
:1; /* bit 4 */
525 u8 queue_request
:1; /* bit 5 */
526 u8 txop_request
:1; /* bit 6 */
527 u8 reserved
:1; /* bit 7 */
530 u8 acvo_APSD
:1; /* bit 0 */
531 u8 acvi_APSD
:1; /* bit 1 */
532 u8 ac_bk_APSD
:1; /* bit 2 */
533 u8 ac_be_APSD
:1; /* bit 3 */
534 u8 q_ack
:1; /* bit 4 */
535 u8 max_len
:2; /* bit 5-6 */
536 u8 more_data_ack
:1; /* bit 7 */
542 struct iwl_qos_info
{
544 union iwl_qos_capabity qos_cap
;
545 struct iwl_qosparam_cmd def_qos_parm
;
548 #define STA_PS_STATUS_WAKE 0
549 #define STA_PS_STATUS_SLEEP 1
552 struct iwl3945_station_entry
{
553 struct iwl3945_addsta_cmd sta
;
554 struct iwl_tid_data tid
[MAX_TID_COUNT
];
557 struct iwl_hw_key keyinfo
;
560 struct iwl_station_entry
{
561 struct iwl_addsta_cmd sta
;
562 struct iwl_tid_data tid
[MAX_TID_COUNT
];
565 struct iwl_hw_key keyinfo
;
569 * iwl_station_priv: Driver's private station information
571 * When mac80211 creates a station it reserves some space (hw->sta_data_size)
572 * in the structure for use by driver. This structure is places in that
575 * At the moment use it for the station's rate scaling information.
577 struct iwl_station_priv
{
578 struct iwl_lq_sta lq_sta
;
581 /* one for each uCode image (inst/data, boot/init/runtime) */
583 void *v_addr
; /* access by driver */
584 dma_addr_t p_addr
; /* access by card's busmaster DMA */
588 /* uCode file layout */
589 struct iwl_ucode_header
{
590 __le32 ver
; /* major/minor/API/serial */
593 __le32 inst_size
; /* bytes of runtime code */
594 __le32 data_size
; /* bytes of runtime data */
595 __le32 init_size
; /* bytes of init code */
596 __le32 init_data_size
; /* bytes of init data */
597 __le32 boot_size
; /* bytes of bootstrap code */
598 u8 data
[0]; /* in same order as sizes */
601 __le32 build
; /* build number */
602 __le32 inst_size
; /* bytes of runtime code */
603 __le32 data_size
; /* bytes of runtime data */
604 __le32 init_size
; /* bytes of init code */
605 __le32 init_data_size
; /* bytes of init data */
606 __le32 boot_size
; /* bytes of bootstrap code */
607 u8 data
[0]; /* in same order as sizes */
611 #define UCODE_HEADER_SIZE(ver) ((ver) == 1 ? 24 : 28)
613 struct iwl4965_ibss_seq
{
617 unsigned long packet_time
;
618 struct list_head list
;
621 struct iwl_sensitivity_ranges
{
628 u16 auto_corr_min_ofdm
;
629 u16 auto_corr_min_ofdm_mrc
;
630 u16 auto_corr_min_ofdm_x1
;
631 u16 auto_corr_min_ofdm_mrc_x1
;
633 u16 auto_corr_max_ofdm
;
634 u16 auto_corr_max_ofdm_mrc
;
635 u16 auto_corr_max_ofdm_x1
;
636 u16 auto_corr_max_ofdm_mrc_x1
;
638 u16 auto_corr_max_cck
;
639 u16 auto_corr_max_cck_mrc
;
640 u16 auto_corr_min_cck
;
641 u16 auto_corr_min_cck_mrc
;
643 u16 barker_corr_th_min
;
644 u16 barker_corr_th_min_mrc
;
649 #define KELVIN_TO_CELSIUS(x) ((x)-273)
650 #define CELSIUS_TO_KELVIN(x) ((x)+273)
654 * struct iwl_hw_params
655 * @max_txq_num: Max # Tx queues supported
656 * @dma_chnl_num: Number of Tx DMA/FIFO channels
657 * @scd_bc_tbls_size: size of scheduler byte count tables
658 * @tfd_size: TFD size
659 * @tx/rx_chains_num: Number of TX/RX chains
660 * @valid_tx/rx_ant: usable antennas
661 * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
662 * @max_rxq_log: Log-base-2 of max_rxq_size
663 * @rx_page_order: Rx buffer page order
664 * @rx_wrt_ptr_reg: FH{39}_RSCSR_CHNL0_WPTR
667 * @ht40_channel: is 40MHz width possible in band 2.4
668 * BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ)
669 * @sw_crypto: 0 for hw, 1 for sw
670 * @max_xxx_size: for ucode uses
671 * @ct_kill_threshold: temperature threshold
672 * @calib_init_cfg: setup initial calibrations for the hw
673 * @struct iwl_sensitivity_ranges: range of sensitivity values
675 struct iwl_hw_params
{
678 u16 scd_bc_tbls_size
;
691 u8 max_beacon_itrvl
; /* in 1024 ms */
695 u32 ct_kill_threshold
; /* value in hw-dependent units */
696 u32 ct_kill_exit_threshold
; /* value in hw-dependent units */
697 /* for 1000, 6000 series and up */
699 const struct iwl_sensitivity_ranges
*sens
;
703 /******************************************************************************
705 * Functions implemented in core module which are forward declared here
706 * for use by iwl-[4-5].c
708 * NOTE: The implementation of these functions are not hardware specific
709 * which is why they are in the core module files.
711 * Naming convention --
712 * iwl_ <-- Is part of iwlwifi
713 * iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
714 * iwl4965_bg_ <-- Called from work queue context
715 * iwl4965_mac_ <-- mac80211 callback
717 ****************************************************************************/
718 extern void iwl_update_chain_flags(struct iwl_priv
*priv
);
719 extern int iwl_set_pwr_src(struct iwl_priv
*priv
, enum iwl_pwr_src src
);
720 extern const u8 iwl_bcast_addr
[ETH_ALEN
];
721 extern int iwl_rxq_stop(struct iwl_priv
*priv
);
722 extern void iwl_txq_ctx_stop(struct iwl_priv
*priv
);
723 extern int iwl_queue_space(const struct iwl_queue
*q
);
724 static inline int iwl_queue_used(const struct iwl_queue
*q
, int i
)
726 return q
->write_ptr
> q
->read_ptr
?
727 (i
>= q
->read_ptr
&& i
< q
->write_ptr
) :
728 !(i
< q
->read_ptr
&& i
>= q
->write_ptr
);
732 static inline u8
get_cmd_index(struct iwl_queue
*q
, u32 index
, int is_huge
)
735 * This is for init calibration result and scan command which
736 * required buffer > TFD_MAX_PAYLOAD_SIZE,
737 * the big buffer at end of command array
740 return q
->n_window
; /* must be power of 2 */
742 /* Otherwise, use normal size buffers */
743 return index
& (q
->n_window
- 1);
753 #define IWL_OPERATION_MODE_AUTO 0
754 #define IWL_OPERATION_MODE_HT_ONLY 1
755 #define IWL_OPERATION_MODE_MIXED 2
756 #define IWL_OPERATION_MODE_20MHZ 3
758 #define IWL_TX_CRC_SIZE 4
759 #define IWL_TX_DELIMITER_SIZE 4
761 #define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
763 /* Sensitivity and chain noise calibration */
764 #define INITIALIZATION_VALUE 0xFFFF
765 #define IWL4965_CAL_NUM_BEACONS 20
766 #define IWL_CAL_NUM_BEACONS 16
767 #define MAXIMUM_ALLOWED_PATHLOSS 15
769 #define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
771 #define MAX_FA_OFDM 50
772 #define MIN_FA_OFDM 5
773 #define MAX_FA_CCK 50
776 #define AUTO_CORR_STEP_OFDM 1
778 #define AUTO_CORR_STEP_CCK 3
779 #define AUTO_CORR_MAX_TH_CCK 160
782 #define NRG_STEP_CCK 2
784 #define MAX_NUMBER_CCK_NO_FA 100
786 #define AUTO_CORR_CCK_MIN_VAL_DEF (125)
791 #define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
792 #define ALL_BAND_FILTER 0xFF00
793 #define IN_BAND_FILTER 0xFF
794 #define MIN_AVERAGE_NOISE_MAX_VALUE 0xFFFFFFFF
796 #define NRG_NUM_PREV_STAT_L 20
797 #define NUM_RX_CHAINS 3
799 enum iwl4965_false_alarm_state
{
802 IWL_FA_GOOD_RANGE
= 2,
805 enum iwl4965_chain_noise_state
{
806 IWL_CHAIN_NOISE_ALIVE
= 0, /* must be 0 */
807 IWL_CHAIN_NOISE_ACCUMULATE
,
808 IWL_CHAIN_NOISE_CALIBRATED
,
809 IWL_CHAIN_NOISE_DONE
,
812 enum iwl4965_calib_enabled_state
{
813 IWL_CALIB_DISABLED
= 0, /* must be 0 */
814 IWL_CALIB_ENABLED
= 1,
820 * defines the order in which results of initial calibrations
821 * should be sent to the runtime uCode
828 IWL_CALIB_TX_IQ_PERD
,
833 /* Opaque calibration results */
834 struct iwl_calib_result
{
845 /* Sensitivity calib data */
846 struct iwl_sensitivity_data
{
848 u32 auto_corr_ofdm_mrc
;
849 u32 auto_corr_ofdm_x1
;
850 u32 auto_corr_ofdm_mrc_x1
;
852 u32 auto_corr_cck_mrc
;
854 u32 last_bad_plcp_cnt_ofdm
;
855 u32 last_fa_cnt_ofdm
;
856 u32 last_bad_plcp_cnt_cck
;
862 u8 nrg_silence_rssi
[NRG_NUM_PREV_STAT_L
];
867 s32 nrg_auto_corr_silence_diff
;
868 u32 num_in_cck_no_fa
;
871 u16 barker_corr_th_min
;
872 u16 barker_corr_th_min_mrc
;
876 /* Chain noise (differential Rx gain) calib data */
877 struct iwl_chain_noise_data
{
886 u8 disconn_array
[NUM_RX_CHAINS
];
887 u8 delta_gain_code
[NUM_RX_CHAINS
];
892 #define EEPROM_SEM_TIMEOUT 10 /* milliseconds */
893 #define EEPROM_SEM_RETRY_LIMIT 1000 /* number of attempts (not time) */
895 #define IWL_TRAFFIC_ENTRIES (256)
896 #define IWL_TRAFFIC_ENTRY_SIZE (64)
899 MEASUREMENT_READY
= (1 << 0),
900 MEASUREMENT_ACTIVE
= (1 << 1),
904 NVM_DEVICE_TYPE_EEPROM
= 0,
909 * Two types of OTP memory access modes
910 * IWL_OTP_ACCESS_ABSOLUTE - absolute address mode,
911 * based on physical memory addressing
912 * IWL_OTP_ACCESS_RELATIVE - relative address mode,
913 * based on logical memory addressing
915 enum iwl_access_mode
{
916 IWL_OTP_ACCESS_ABSOLUTE
,
917 IWL_OTP_ACCESS_RELATIVE
,
921 * enum iwl_pa_type - Power Amplifier type
922 * @IWL_PA_SYSTEM: based on uCode configuration
923 * @IWL_PA_INTERNAL: use Internal only
930 /* interrupt statistics */
931 struct isr_statistics
{
941 u32 rx_handlers
[REPLY_MAX
];
946 #ifdef CONFIG_IWLWIFI_DEBUGFS
947 /* management statistics */
948 enum iwl_mgmt_stats
{
949 MANAGEMENT_ASSOC_REQ
= 0,
950 MANAGEMENT_ASSOC_RESP
,
951 MANAGEMENT_REASSOC_REQ
,
952 MANAGEMENT_REASSOC_RESP
,
953 MANAGEMENT_PROBE_REQ
,
954 MANAGEMENT_PROBE_RESP
,
963 /* control statistics */
964 enum iwl_ctrl_stats
{
965 CONTROL_BACK_REQ
= 0,
976 struct traffic_stats
{
977 u32 mgmt
[MANAGEMENT_MAX
];
978 u32 ctrl
[CONTROL_MAX
];
983 struct traffic_stats
{
989 * iwl_switch_rxon: "channel switch" structure
991 * @ switch_in_progress: channel switch in progress
992 * @ channel: new channel
994 struct iwl_switch_rxon
{
995 bool switch_in_progress
;
1001 /* ieee device used by generic ieee processing code */
1002 struct ieee80211_hw
*hw
;
1003 struct ieee80211_channel
*ieee_channels
;
1004 struct ieee80211_rate
*ieee_rates
;
1005 struct iwl_cfg
*cfg
;
1007 /* temporary frame storage list */
1008 struct list_head free_frames
;
1011 enum ieee80211_band band
;
1014 void (*rx_handlers
[REPLY_MAX
])(struct iwl_priv
*priv
,
1015 struct iwl_rx_mem_buffer
*rxb
);
1017 struct ieee80211_supported_band bands
[IEEE80211_NUM_BANDS
];
1019 #if defined(CONFIG_IWLWIFI_SPECTRUM_MEASUREMENT) || defined(CONFIG_IWL3945_SPECTRUM_MEASUREMENT)
1020 /* spectrum measurement report caching */
1021 struct iwl_spectrum_notification measure_report
;
1022 u8 measurement_status
;
1024 /* ucode beacon time */
1025 u32 ucode_beacon_time
;
1027 /* we allocate array of iwl4965_channel_info for NIC's valid channels.
1028 * Access via channel # using indirect index array */
1029 struct iwl_channel_info
*channel_info
; /* channel info array */
1030 u8 channel_count
; /* # of channels */
1032 /* each calibration channel group in the EEPROM has a derived
1033 * clip setting for each rate. 3945 only.*/
1034 const struct iwl3945_clip_group clip39_groups
[5];
1036 /* thermal calibration */
1037 s32 temperature
; /* degrees Kelvin */
1038 s32 last_temperature
;
1040 /* init calibration results */
1041 struct iwl_calib_result calib_results
[IWL_CALIB_MAX
];
1043 /* Scan related variables */
1044 unsigned long last_scan_jiffies
;
1045 unsigned long next_scan_jiffies
;
1046 unsigned long scan_start
;
1047 unsigned long scan_pass_start
;
1048 unsigned long scan_start_tsf
;
1051 struct cfg80211_scan_request
*scan_request
;
1052 u8 scan_tx_ant
[IEEE80211_NUM_BANDS
];
1056 spinlock_t lock
; /* protect general shared data */
1057 spinlock_t hcmd_lock
; /* protect hcmd */
1058 spinlock_t reg_lock
; /* protect hw register access */
1061 /* basic pci-network driver stuff */
1062 struct pci_dev
*pci_dev
;
1064 /* pci hardware address support */
1065 void __iomem
*hw_base
;
1070 /* uCode images, save to reload in case of failure */
1071 u32 ucode_ver
; /* version of ucode, copy of
1073 struct fw_desc ucode_code
; /* runtime inst */
1074 struct fw_desc ucode_data
; /* runtime data original */
1075 struct fw_desc ucode_data_backup
; /* runtime data save/restore */
1076 struct fw_desc ucode_init
; /* initialization inst */
1077 struct fw_desc ucode_init_data
; /* initialization data */
1078 struct fw_desc ucode_boot
; /* bootstrap inst */
1079 enum ucode_type ucode_type
;
1080 u8 ucode_write_complete
; /* the image write is complete */
1083 struct iwl_rxon_time_cmd rxon_timing
;
1085 /* We declare this const so it can only be
1086 * changed via explicit cast within the
1087 * routines that actually update the physical
1089 const struct iwl_rxon_cmd active_rxon
;
1090 struct iwl_rxon_cmd staging_rxon
;
1092 struct iwl_switch_rxon switch_rxon
;
1094 /* 1st responses from initialize and runtime uCode images.
1095 * 4965's initialize alive response contains some calibration data. */
1096 struct iwl_init_alive_resp card_alive_init
;
1097 struct iwl_alive_resp card_alive
;
1099 unsigned long last_blink_time
;
1105 u16 active_rate_basic
;
1107 u8 assoc_station_added
;
1109 struct iwl_sensitivity_data sensitivity_data
;
1110 struct iwl_chain_noise_data chain_noise_data
;
1111 __le16 sensitivity_tbl
[HD_TABLE_SIZE
];
1113 struct iwl_ht_config current_ht_config
;
1114 u8 last_phy_res
[100];
1116 /* Rate scaling data */
1119 wait_queue_head_t wait_command_queue
;
1121 int activity_timer_active
;
1123 /* Rx and Tx DMA processing queues */
1124 struct iwl_rx_queue rxq
;
1125 struct iwl_tx_queue
*txq
;
1126 unsigned long txq_ctx_active_msk
;
1127 struct iwl_dma_ptr kw
; /* keep warm address */
1128 struct iwl_dma_ptr scd_bc_tbls
;
1130 u32 scd_base_addr
; /* scheduler sram base address */
1132 unsigned long status
;
1134 int last_rx_rssi
; /* From Rx packet statistics */
1135 int last_rx_noise
; /* From beacon statistics */
1137 /* counts mgmt, ctl, and data packets */
1138 struct traffic_stats tx_stats
;
1139 struct traffic_stats rx_stats
;
1141 /* counts interrupts */
1142 struct isr_statistics isr_stats
;
1144 struct iwl_power_mgr power_data
;
1145 struct iwl_tt_mgmt thermal_throttle
;
1147 struct iwl_notif_statistics statistics
;
1148 #ifdef CONFIG_IWLWIFI_DEBUG
1149 struct iwl_notif_statistics accum_statistics
;
1152 /* context information */
1157 u8 mac_addr
[ETH_ALEN
];
1159 /*station table variables */
1160 spinlock_t sta_lock
;
1162 struct iwl_station_entry stations
[IWL_STATION_COUNT
];
1163 struct iwl_wep_key wep_keys
[WEP_KEYS_MAX
];
1166 unsigned long ucode_key_table
;
1168 /* queue refcounts */
1169 #define IWL_MAX_HW_QUEUES 32
1170 unsigned long queue_stopped
[BITS_TO_LONGS(IWL_MAX_HW_QUEUES
)];
1172 atomic_t queue_stop_count
[4];
1174 /* Indication if ieee80211_ops->open has been called */
1177 u8 mac80211_registered
;
1179 /* Rx'd packet timing information */
1180 u32 last_beacon_time
;
1185 int nvm_device_type
;
1186 struct iwl_eeprom_calib_info
*calib_info
;
1188 enum nl80211_iftype iw_mode
;
1190 struct sk_buff
*ibss_beacon
;
1192 /* Last Rx'd beacon timestamp */
1195 struct ieee80211_vif
*vif
;
1199 dma_addr_t shared_phys
;
1201 struct iwl_hw_params hw_params
;
1205 dma_addr_t ict_tbl_dma
;
1206 dma_addr_t aligned_ict_tbl_dma
;
1213 /* Current association information needed to configure the
1216 u16 assoc_capability
;
1218 struct iwl_qos_info qos_data
;
1220 struct workqueue_struct
*workqueue
;
1222 struct work_struct up
;
1223 struct work_struct restart
;
1224 struct work_struct calibrated_work
;
1225 struct work_struct scan_completed
;
1226 struct work_struct rx_replenish
;
1227 struct work_struct abort_scan
;
1228 struct work_struct update_link_led
;
1229 struct work_struct auth_work
;
1230 struct work_struct report_work
;
1231 struct work_struct request_scan
;
1232 struct work_struct beacon_update
;
1233 struct work_struct tt_work
;
1234 struct work_struct ct_enter
;
1235 struct work_struct ct_exit
;
1237 struct tasklet_struct irq_tasklet
;
1239 struct delayed_work init_alive_start
;
1240 struct delayed_work alive_start
;
1241 struct delayed_work scan_check
;
1244 struct delayed_work thermal_periodic
;
1245 struct delayed_work rfkill_poll
;
1248 s8 tx_power_user_lmt
;
1249 s8 tx_power_device_lmt
;
1250 s8 tx_power_lmt_in_half_dbm
; /* max tx power in half-dBm format */
1253 #ifdef CONFIG_IWLWIFI_DEBUG
1254 /* debugging info */
1255 u32 debug_level
; /* per device debugging will override global
1256 iwl_debug_level if set */
1258 atomic_t restrict_refcnt
;
1260 #ifdef CONFIG_IWLWIFI_DEBUGFS
1266 struct iwl_debugfs
*dbgfs
;
1267 #endif /* CONFIG_IWLWIFI_DEBUGFS */
1268 #endif /* CONFIG_IWLWIFI_DEBUG */
1270 struct work_struct txpower_work
;
1271 u32 disable_sens_cal
;
1272 u32 disable_chain_noise_cal
;
1273 u32 disable_tx_power_cal
;
1274 struct work_struct run_time_calib_work
;
1275 struct timer_list statistics_periodic
;
1278 #define IWL_DEFAULT_TX_POWER 0x0F
1280 struct iwl3945_notif_statistics statistics_39
;
1285 static inline void iwl_txq_ctx_activate(struct iwl_priv
*priv
, int txq_id
)
1287 set_bit(txq_id
, &priv
->txq_ctx_active_msk
);
1290 static inline void iwl_txq_ctx_deactivate(struct iwl_priv
*priv
, int txq_id
)
1292 clear_bit(txq_id
, &priv
->txq_ctx_active_msk
);
1295 #ifdef CONFIG_IWLWIFI_DEBUG
1296 const char *iwl_get_tx_fail_reason(u32 status
);
1298 * iwl_get_debug_level: Return active debug level for device
1300 * Using sysfs it is possible to set per device debug level. This debug
1301 * level will be used if set, otherwise the global debug level which can be
1302 * set via module parameter is used.
1304 static inline u32
iwl_get_debug_level(struct iwl_priv
*priv
)
1306 if (priv
->debug_level
)
1307 return priv
->debug_level
;
1309 return iwl_debug_level
;
1312 static inline const char *iwl_get_tx_fail_reason(u32 status
) { return ""; }
1314 static inline u32
iwl_get_debug_level(struct iwl_priv
*priv
)
1316 return iwl_debug_level
;
1321 static inline struct ieee80211_hdr
*iwl_tx_queue_get_hdr(struct iwl_priv
*priv
,
1322 int txq_id
, int idx
)
1324 if (priv
->txq
[txq_id
].txb
[idx
].skb
[0])
1325 return (struct ieee80211_hdr
*)priv
->txq
[txq_id
].
1326 txb
[idx
].skb
[0]->data
;
1331 static inline int iwl_is_associated(struct iwl_priv
*priv
)
1333 return (priv
->active_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
) ? 1 : 0;
1336 static inline int is_channel_valid(const struct iwl_channel_info
*ch_info
)
1338 if (ch_info
== NULL
)
1340 return (ch_info
->flags
& EEPROM_CHANNEL_VALID
) ? 1 : 0;
1343 static inline int is_channel_radar(const struct iwl_channel_info
*ch_info
)
1345 return (ch_info
->flags
& EEPROM_CHANNEL_RADAR
) ? 1 : 0;
1348 static inline u8
is_channel_a_band(const struct iwl_channel_info
*ch_info
)
1350 return ch_info
->band
== IEEE80211_BAND_5GHZ
;
1353 static inline u8
is_channel_bg_band(const struct iwl_channel_info
*ch_info
)
1355 return ch_info
->band
== IEEE80211_BAND_2GHZ
;
1358 static inline int is_channel_passive(const struct iwl_channel_info
*ch
)
1360 return (!(ch
->flags
& EEPROM_CHANNEL_ACTIVE
)) ? 1 : 0;
1363 static inline int is_channel_ibss(const struct iwl_channel_info
*ch
)
1365 return ((ch
->flags
& EEPROM_CHANNEL_IBSS
)) ? 1 : 0;
1368 #endif /* __iwl_dev_h__ */