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 */
515 struct ieee80211_mcs_info mcs
;
516 /* BSS related data */
517 u8 extension_chan_offset
;
520 u8 non_GF_STA_present
;
523 union iwl_qos_capabity
{
525 u8 edca_count
:4; /* bit 0-3 */
526 u8 q_ack
:1; /* bit 4 */
527 u8 queue_request
:1; /* bit 5 */
528 u8 txop_request
:1; /* bit 6 */
529 u8 reserved
:1; /* bit 7 */
532 u8 acvo_APSD
:1; /* bit 0 */
533 u8 acvi_APSD
:1; /* bit 1 */
534 u8 ac_bk_APSD
:1; /* bit 2 */
535 u8 ac_be_APSD
:1; /* bit 3 */
536 u8 q_ack
:1; /* bit 4 */
537 u8 max_len
:2; /* bit 5-6 */
538 u8 more_data_ack
:1; /* bit 7 */
544 struct iwl_qos_info
{
546 union iwl_qos_capabity qos_cap
;
547 struct iwl_qosparam_cmd def_qos_parm
;
550 #define STA_PS_STATUS_WAKE 0
551 #define STA_PS_STATUS_SLEEP 1
554 struct iwl3945_station_entry
{
555 struct iwl3945_addsta_cmd sta
;
556 struct iwl_tid_data tid
[MAX_TID_COUNT
];
559 struct iwl_hw_key keyinfo
;
562 struct iwl_station_entry
{
563 struct iwl_addsta_cmd sta
;
564 struct iwl_tid_data tid
[MAX_TID_COUNT
];
567 struct iwl_hw_key keyinfo
;
570 /* one for each uCode image (inst/data, boot/init/runtime) */
572 void *v_addr
; /* access by driver */
573 dma_addr_t p_addr
; /* access by card's busmaster DMA */
577 /* uCode file layout */
578 struct iwl_ucode_header
{
579 __le32 ver
; /* major/minor/API/serial */
582 __le32 inst_size
; /* bytes of runtime code */
583 __le32 data_size
; /* bytes of runtime data */
584 __le32 init_size
; /* bytes of init code */
585 __le32 init_data_size
; /* bytes of init data */
586 __le32 boot_size
; /* bytes of bootstrap code */
587 u8 data
[0]; /* in same order as sizes */
590 __le32 build
; /* build number */
591 __le32 inst_size
; /* bytes of runtime code */
592 __le32 data_size
; /* bytes of runtime data */
593 __le32 init_size
; /* bytes of init code */
594 __le32 init_data_size
; /* bytes of init data */
595 __le32 boot_size
; /* bytes of bootstrap code */
596 u8 data
[0]; /* in same order as sizes */
600 #define UCODE_HEADER_SIZE(ver) ((ver) == 1 ? 24 : 28)
602 struct iwl4965_ibss_seq
{
606 unsigned long packet_time
;
607 struct list_head list
;
610 struct iwl_sensitivity_ranges
{
617 u16 auto_corr_min_ofdm
;
618 u16 auto_corr_min_ofdm_mrc
;
619 u16 auto_corr_min_ofdm_x1
;
620 u16 auto_corr_min_ofdm_mrc_x1
;
622 u16 auto_corr_max_ofdm
;
623 u16 auto_corr_max_ofdm_mrc
;
624 u16 auto_corr_max_ofdm_x1
;
625 u16 auto_corr_max_ofdm_mrc_x1
;
627 u16 auto_corr_max_cck
;
628 u16 auto_corr_max_cck_mrc
;
629 u16 auto_corr_min_cck
;
630 u16 auto_corr_min_cck_mrc
;
634 #define KELVIN_TO_CELSIUS(x) ((x)-273)
635 #define CELSIUS_TO_KELVIN(x) ((x)+273)
639 * struct iwl_hw_params
640 * @max_txq_num: Max # Tx queues supported
641 * @dma_chnl_num: Number of Tx DMA/FIFO channels
642 * @scd_bc_tbls_size: size of scheduler byte count tables
643 * @tfd_size: TFD size
644 * @tx/rx_chains_num: Number of TX/RX chains
645 * @valid_tx/rx_ant: usable antennas
646 * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
647 * @max_rxq_log: Log-base-2 of max_rxq_size
648 * @rx_buf_size: Rx buffer size
649 * @rx_wrt_ptr_reg: FH{39}_RSCSR_CHNL0_WPTR
652 * @ht40_channel: is 40MHz width possible in band 2.4
653 * BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ)
654 * @sw_crypto: 0 for hw, 1 for sw
655 * @max_xxx_size: for ucode uses
656 * @ct_kill_threshold: temperature threshold
657 * @calib_init_cfg: setup initial calibrations for the hw
658 * @struct iwl_sensitivity_ranges: range of sensitivity values
660 struct iwl_hw_params
{
663 u16 scd_bc_tbls_size
;
677 u8 max_beacon_itrvl
; /* in 1024 ms */
681 u32 ct_kill_threshold
; /* value in hw-dependent units */
682 u32 ct_kill_exit_threshold
; /* value in hw-dependent units */
683 /* for 1000, 6000 series and up */
685 const struct iwl_sensitivity_ranges
*sens
;
689 /******************************************************************************
691 * Functions implemented in core module which are forward declared here
692 * for use by iwl-[4-5].c
694 * NOTE: The implementation of these functions are not hardware specific
695 * which is why they are in the core module files.
697 * Naming convention --
698 * iwl_ <-- Is part of iwlwifi
699 * iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
700 * iwl4965_bg_ <-- Called from work queue context
701 * iwl4965_mac_ <-- mac80211 callback
703 ****************************************************************************/
704 extern void iwl_update_chain_flags(struct iwl_priv
*priv
);
705 extern int iwl_set_pwr_src(struct iwl_priv
*priv
, enum iwl_pwr_src src
);
706 extern const u8 iwl_bcast_addr
[ETH_ALEN
];
707 extern int iwl_rxq_stop(struct iwl_priv
*priv
);
708 extern void iwl_txq_ctx_stop(struct iwl_priv
*priv
);
709 extern int iwl_queue_space(const struct iwl_queue
*q
);
710 static inline int iwl_queue_used(const struct iwl_queue
*q
, int i
)
712 return q
->write_ptr
> q
->read_ptr
?
713 (i
>= q
->read_ptr
&& i
< q
->write_ptr
) :
714 !(i
< q
->read_ptr
&& i
>= q
->write_ptr
);
718 static inline u8
get_cmd_index(struct iwl_queue
*q
, u32 index
, int is_huge
)
720 /* This is for scan command, the big buffer at end of command array */
722 return q
->n_window
; /* must be power of 2 */
724 /* Otherwise, use normal size buffers */
725 return index
& (q
->n_window
- 1);
735 #define HT_SHORT_GI_20MHZ (1 << 0)
736 #define HT_SHORT_GI_40MHZ (1 << 1)
738 #define IWL_CHANNEL_WIDTH_20MHZ 0
739 #define IWL_CHANNEL_WIDTH_40MHZ 1
741 #define IWL_OPERATION_MODE_AUTO 0
742 #define IWL_OPERATION_MODE_HT_ONLY 1
743 #define IWL_OPERATION_MODE_MIXED 2
744 #define IWL_OPERATION_MODE_20MHZ 3
746 #define IWL_TX_CRC_SIZE 4
747 #define IWL_TX_DELIMITER_SIZE 4
749 #define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
751 /* Sensitivity and chain noise calibration */
752 #define INITIALIZATION_VALUE 0xFFFF
753 #define CAL_NUM_OF_BEACONS 20
754 #define MAXIMUM_ALLOWED_PATHLOSS 15
756 #define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
758 #define MAX_FA_OFDM 50
759 #define MIN_FA_OFDM 5
760 #define MAX_FA_CCK 50
763 #define AUTO_CORR_STEP_OFDM 1
765 #define AUTO_CORR_STEP_CCK 3
766 #define AUTO_CORR_MAX_TH_CCK 160
769 #define NRG_STEP_CCK 2
771 #define MAX_NUMBER_CCK_NO_FA 100
773 #define AUTO_CORR_CCK_MIN_VAL_DEF (125)
778 #define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
779 #define ALL_BAND_FILTER 0xFF00
780 #define IN_BAND_FILTER 0xFF
781 #define MIN_AVERAGE_NOISE_MAX_VALUE 0xFFFFFFFF
783 #define NRG_NUM_PREV_STAT_L 20
784 #define NUM_RX_CHAINS 3
786 enum iwl4965_false_alarm_state
{
789 IWL_FA_GOOD_RANGE
= 2,
792 enum iwl4965_chain_noise_state
{
793 IWL_CHAIN_NOISE_ALIVE
= 0, /* must be 0 */
794 IWL_CHAIN_NOISE_ACCUMULATE
,
795 IWL_CHAIN_NOISE_CALIBRATED
,
796 IWL_CHAIN_NOISE_DONE
,
799 enum iwl4965_calib_enabled_state
{
800 IWL_CALIB_DISABLED
= 0, /* must be 0 */
801 IWL_CALIB_ENABLED
= 1,
807 * defines the order in which results of initial calibrations
808 * should be sent to the runtime uCode
815 IWL_CALIB_TX_IQ_PERD
,
820 /* Opaque calibration results */
821 struct iwl_calib_result
{
832 /* Sensitivity calib data */
833 struct iwl_sensitivity_data
{
835 u32 auto_corr_ofdm_mrc
;
836 u32 auto_corr_ofdm_x1
;
837 u32 auto_corr_ofdm_mrc_x1
;
839 u32 auto_corr_cck_mrc
;
841 u32 last_bad_plcp_cnt_ofdm
;
842 u32 last_fa_cnt_ofdm
;
843 u32 last_bad_plcp_cnt_cck
;
849 u8 nrg_silence_rssi
[NRG_NUM_PREV_STAT_L
];
854 s32 nrg_auto_corr_silence_diff
;
855 u32 num_in_cck_no_fa
;
859 /* Chain noise (differential Rx gain) calib data */
860 struct iwl_chain_noise_data
{
869 u8 disconn_array
[NUM_RX_CHAINS
];
870 u8 delta_gain_code
[NUM_RX_CHAINS
];
875 #define EEPROM_SEM_TIMEOUT 10 /* milliseconds */
876 #define EEPROM_SEM_RETRY_LIMIT 1000 /* number of attempts (not time) */
878 #define IWL_TRAFFIC_ENTRIES (256)
879 #define IWL_TRAFFIC_ENTRY_SIZE (64)
882 MEASUREMENT_READY
= (1 << 0),
883 MEASUREMENT_ACTIVE
= (1 << 1),
887 NVM_DEVICE_TYPE_EEPROM
= 0,
893 * enum iwl_pa_type - Power Amplifier type
894 * @IWL_PA_SYSTEM: based on uCode configuration
895 * @IWL_PA_HYBRID: use both Internal and external PA
896 * @IWL_PA_INTERNAL: use Internal only
904 /* interrupt statistics */
905 struct isr_statistics
{
915 u32 rx_handlers
[REPLY_MAX
];
920 #ifdef CONFIG_IWLWIFI_DEBUGFS
921 /* management statistics */
922 enum iwl_mgmt_stats
{
923 MANAGEMENT_ASSOC_REQ
= 0,
924 MANAGEMENT_ASSOC_RESP
,
925 MANAGEMENT_REASSOC_REQ
,
926 MANAGEMENT_REASSOC_RESP
,
927 MANAGEMENT_PROBE_REQ
,
928 MANAGEMENT_PROBE_RESP
,
937 /* control statistics */
938 enum iwl_ctrl_stats
{
939 CONTROL_BACK_REQ
= 0,
950 struct traffic_stats
{
951 u32 mgmt
[MANAGEMENT_MAX
];
952 u32 ctrl
[CONTROL_MAX
];
957 struct traffic_stats
{
962 #define IWL_MAX_NUM_QUEUES 20 /* FIXME: do dynamic allocation */
966 /* ieee device used by generic ieee processing code */
967 struct ieee80211_hw
*hw
;
968 struct ieee80211_channel
*ieee_channels
;
969 struct ieee80211_rate
*ieee_rates
;
972 /* temporary frame storage list */
973 struct list_head free_frames
;
976 enum ieee80211_band band
;
979 void (*rx_handlers
[REPLY_MAX
])(struct iwl_priv
*priv
,
980 struct iwl_rx_mem_buffer
*rxb
);
982 struct ieee80211_supported_band bands
[IEEE80211_NUM_BANDS
];
984 #if defined(CONFIG_IWLWIFI_SPECTRUM_MEASUREMENT) || defined(CONFIG_IWL3945_SPECTRUM_MEASUREMENT)
985 /* spectrum measurement report caching */
986 struct iwl_spectrum_notification measure_report
;
987 u8 measurement_status
;
989 /* ucode beacon time */
990 u32 ucode_beacon_time
;
992 /* we allocate array of iwl4965_channel_info for NIC's valid channels.
993 * Access via channel # using indirect index array */
994 struct iwl_channel_info
*channel_info
; /* channel info array */
995 u8 channel_count
; /* # of channels */
997 /* each calibration channel group in the EEPROM has a derived
998 * clip setting for each rate. 3945 only.*/
999 const struct iwl3945_clip_group clip39_groups
[5];
1001 /* thermal calibration */
1002 s32 temperature
; /* degrees Kelvin */
1003 s32 last_temperature
;
1005 /* init calibration results */
1006 struct iwl_calib_result calib_results
[IWL_CALIB_MAX
];
1008 /* Scan related variables */
1009 unsigned long last_scan_jiffies
;
1010 unsigned long next_scan_jiffies
;
1011 unsigned long scan_start
;
1012 unsigned long scan_pass_start
;
1013 unsigned long scan_start_tsf
;
1016 struct cfg80211_scan_request
*scan_request
;
1017 u8 scan_tx_ant
[IEEE80211_NUM_BANDS
];
1021 spinlock_t lock
; /* protect general shared data */
1022 spinlock_t hcmd_lock
; /* protect hcmd */
1023 spinlock_t reg_lock
; /* protect hw register access */
1026 /* basic pci-network driver stuff */
1027 struct pci_dev
*pci_dev
;
1029 /* pci hardware address support */
1030 void __iomem
*hw_base
;
1035 /* uCode images, save to reload in case of failure */
1036 u32 ucode_ver
; /* version of ucode, copy of
1038 struct fw_desc ucode_code
; /* runtime inst */
1039 struct fw_desc ucode_data
; /* runtime data original */
1040 struct fw_desc ucode_data_backup
; /* runtime data save/restore */
1041 struct fw_desc ucode_init
; /* initialization inst */
1042 struct fw_desc ucode_init_data
; /* initialization data */
1043 struct fw_desc ucode_boot
; /* bootstrap inst */
1044 enum ucode_type ucode_type
;
1045 u8 ucode_write_complete
; /* the image write is complete */
1048 struct iwl_rxon_time_cmd rxon_timing
;
1050 /* We declare this const so it can only be
1051 * changed via explicit cast within the
1052 * routines that actually update the physical
1054 const struct iwl_rxon_cmd active_rxon
;
1055 struct iwl_rxon_cmd staging_rxon
;
1057 struct iwl_rxon_cmd recovery_rxon
;
1059 /* 1st responses from initialize and runtime uCode images.
1060 * 4965's initialize alive response contains some calibration data. */
1061 struct iwl_init_alive_resp card_alive_init
;
1062 struct iwl_alive_resp card_alive
;
1064 #ifdef CONFIG_IWLWIFI_LEDS
1065 unsigned long last_blink_time
;
1069 struct iwl_led led
[IWL_LED_TRG_MAX
];
1070 unsigned int rxtxpackets
;
1073 u16 active_rate_basic
;
1075 u8 assoc_station_added
;
1077 struct iwl_sensitivity_data sensitivity_data
;
1078 struct iwl_chain_noise_data chain_noise_data
;
1079 __le16 sensitivity_tbl
[HD_TABLE_SIZE
];
1081 struct iwl_ht_info current_ht_config
;
1082 u8 last_phy_res
[100];
1084 /* Rate scaling data */
1085 s8 data_retry_limit
;
1088 wait_queue_head_t wait_command_queue
;
1090 int activity_timer_active
;
1092 /* Rx and Tx DMA processing queues */
1093 struct iwl_rx_queue rxq
;
1094 struct iwl_tx_queue txq
[IWL_MAX_NUM_QUEUES
];
1095 unsigned long txq_ctx_active_msk
;
1096 struct iwl_dma_ptr kw
; /* keep warm address */
1097 struct iwl_dma_ptr scd_bc_tbls
;
1099 u32 scd_base_addr
; /* scheduler sram base address */
1101 unsigned long status
;
1103 int last_rx_rssi
; /* From Rx packet statistics */
1104 int last_rx_noise
; /* From beacon statistics */
1106 /* counts mgmt, ctl, and data packets */
1107 struct traffic_stats tx_stats
;
1108 struct traffic_stats rx_stats
;
1110 /* counts interrupts */
1111 struct isr_statistics isr_stats
;
1113 struct iwl_power_mgr power_data
;
1114 struct iwl_tt_mgmt thermal_throttle
;
1116 struct iwl_notif_statistics statistics
;
1117 unsigned long last_statistics_time
;
1119 /* context information */
1124 u8 mac_addr
[ETH_ALEN
];
1126 /*station table variables */
1127 spinlock_t sta_lock
;
1129 struct iwl_station_entry stations
[IWL_STATION_COUNT
];
1130 struct iwl_wep_key wep_keys
[WEP_KEYS_MAX
];
1133 unsigned long ucode_key_table
;
1135 /* queue refcounts */
1136 #define IWL_MAX_HW_QUEUES 32
1137 unsigned long queue_stopped
[BITS_TO_LONGS(IWL_MAX_HW_QUEUES
)];
1139 atomic_t queue_stop_count
[4];
1141 /* Indication if ieee80211_ops->open has been called */
1144 u8 mac80211_registered
;
1146 /* Rx'd packet timing information */
1147 u32 last_beacon_time
;
1152 int nvm_device_type
;
1153 struct iwl_eeprom_calib_info
*calib_info
;
1155 enum nl80211_iftype iw_mode
;
1157 struct sk_buff
*ibss_beacon
;
1159 /* Last Rx'd beacon timestamp */
1162 struct ieee80211_vif
*vif
;
1166 dma_addr_t shared_phys
;
1168 struct iwl_hw_params hw_params
;
1172 dma_addr_t ict_tbl_dma
;
1173 dma_addr_t aligned_ict_tbl_dma
;
1180 /* Current association information needed to configure the
1183 u16 assoc_capability
;
1185 struct iwl_qos_info qos_data
;
1187 struct workqueue_struct
*workqueue
;
1189 struct work_struct up
;
1190 struct work_struct restart
;
1191 struct work_struct calibrated_work
;
1192 struct work_struct scan_completed
;
1193 struct work_struct rx_replenish
;
1194 struct work_struct abort_scan
;
1195 struct work_struct update_link_led
;
1196 struct work_struct auth_work
;
1197 struct work_struct report_work
;
1198 struct work_struct request_scan
;
1199 struct work_struct beacon_update
;
1200 struct work_struct tt_work
;
1201 struct work_struct ct_enter
;
1202 struct work_struct ct_exit
;
1204 struct tasklet_struct irq_tasklet
;
1206 struct delayed_work init_alive_start
;
1207 struct delayed_work alive_start
;
1208 struct delayed_work scan_check
;
1211 struct delayed_work thermal_periodic
;
1212 struct delayed_work rfkill_poll
;
1215 s8 tx_power_user_lmt
;
1216 s8 tx_power_channel_lmt
;
1219 #ifdef CONFIG_IWLWIFI_DEBUG
1220 /* debugging info */
1221 u32 debug_level
; /* per device debugging will override global
1222 iwl_debug_level if set */
1224 atomic_t restrict_refcnt
;
1226 #ifdef CONFIG_IWLWIFI_DEBUGFS
1232 struct iwl_debugfs
*dbgfs
;
1233 #endif /* CONFIG_IWLWIFI_DEBUGFS */
1234 #endif /* CONFIG_IWLWIFI_DEBUG */
1236 struct work_struct txpower_work
;
1237 u32 disable_sens_cal
;
1238 u32 disable_chain_noise_cal
;
1239 u32 disable_tx_power_cal
;
1240 struct work_struct run_time_calib_work
;
1241 struct timer_list statistics_periodic
;
1244 #define IWL_DEFAULT_TX_POWER 0x0F
1246 struct iwl3945_notif_statistics statistics_39
;
1251 static inline void iwl_txq_ctx_activate(struct iwl_priv
*priv
, int txq_id
)
1253 set_bit(txq_id
, &priv
->txq_ctx_active_msk
);
1256 static inline void iwl_txq_ctx_deactivate(struct iwl_priv
*priv
, int txq_id
)
1258 clear_bit(txq_id
, &priv
->txq_ctx_active_msk
);
1261 #ifdef CONFIG_IWLWIFI_DEBUG
1262 const char *iwl_get_tx_fail_reason(u32 status
);
1264 * iwl_get_debug_level: Return active debug level for device
1266 * Using sysfs it is possible to set per device debug level. This debug
1267 * level will be used if set, otherwise the global debug level which can be
1268 * set via module parameter is used.
1270 static inline u32
iwl_get_debug_level(struct iwl_priv
*priv
)
1272 if (priv
->debug_level
)
1273 return priv
->debug_level
;
1275 return iwl_debug_level
;
1278 static inline const char *iwl_get_tx_fail_reason(u32 status
) { return ""; }
1280 static inline u32
iwl_get_debug_level(struct iwl_priv
*priv
)
1282 return iwl_debug_level
;
1287 static inline struct ieee80211_hdr
*iwl_tx_queue_get_hdr(struct iwl_priv
*priv
,
1288 int txq_id
, int idx
)
1290 if (priv
->txq
[txq_id
].txb
[idx
].skb
[0])
1291 return (struct ieee80211_hdr
*)priv
->txq
[txq_id
].
1292 txb
[idx
].skb
[0]->data
;
1297 static inline int iwl_is_associated(struct iwl_priv
*priv
)
1299 return (priv
->active_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
) ? 1 : 0;
1302 static inline int is_channel_valid(const struct iwl_channel_info
*ch_info
)
1304 if (ch_info
== NULL
)
1306 return (ch_info
->flags
& EEPROM_CHANNEL_VALID
) ? 1 : 0;
1309 static inline int is_channel_radar(const struct iwl_channel_info
*ch_info
)
1311 return (ch_info
->flags
& EEPROM_CHANNEL_RADAR
) ? 1 : 0;
1314 static inline u8
is_channel_a_band(const struct iwl_channel_info
*ch_info
)
1316 return ch_info
->band
== IEEE80211_BAND_5GHZ
;
1319 static inline u8
is_channel_bg_band(const struct iwl_channel_info
*ch_info
)
1321 return ch_info
->band
== IEEE80211_BAND_2GHZ
;
1324 static inline int is_channel_passive(const struct iwl_channel_info
*ch
)
1326 return (!(ch
->flags
& EEPROM_CHANNEL_ACTIVE
)) ? 1 : 0;
1329 static inline int is_channel_ibss(const struct iwl_channel_info
*ch
)
1331 return ((ch
->flags
& EEPROM_CHANNEL_IBSS
)) ? 1 : 0;
1334 #endif /* __iwl_dev_h__ */