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 iwl6000h_2agn_cfg
;
59 extern struct iwl_cfg iwl6000h_2abg_cfg
;
60 extern struct iwl_cfg iwl6000h_2bg_cfg
;
61 extern struct iwl_cfg iwl6000i_2agn_cfg
;
62 extern struct iwl_cfg iwl6000i_2abg_cfg
;
63 extern struct iwl_cfg iwl6000i_2bg_cfg
;
64 extern struct iwl_cfg iwl6000_3agn_cfg
;
65 extern struct iwl_cfg iwl6050_2agn_cfg
;
66 extern struct iwl_cfg iwl6050_2abg_cfg
;
67 extern struct iwl_cfg iwl6050_3agn_cfg
;
68 extern struct iwl_cfg iwl1000_bgn_cfg
;
69 extern struct iwl_cfg iwl1000_bg_cfg
;
73 /* shared structures from iwl-5000.c */
74 extern struct iwl_mod_params iwl50_mod_params
;
75 extern struct iwl_ucode_ops iwl5000_ucode
;
76 extern struct iwl_lib_ops iwl5000_lib
;
77 extern struct iwl_hcmd_ops iwl5000_hcmd
;
78 extern struct iwl_hcmd_utils_ops iwl5000_hcmd_utils
;
80 /* shared functions from iwl-5000.c */
81 extern u16
iwl5000_get_hcmd_size(u8 cmd_id
, u16 len
);
82 extern u16
iwl5000_build_addsta_hcmd(const struct iwl_addsta_cmd
*cmd
,
84 extern void iwl5000_rts_tx_cmd_flag(struct ieee80211_tx_info
*info
,
86 extern int iwl5000_calc_rssi(struct iwl_priv
*priv
,
87 struct iwl_rx_phy_res
*rx_resp
);
88 extern int iwl5000_apm_init(struct iwl_priv
*priv
);
89 extern int iwl5000_apm_reset(struct iwl_priv
*priv
);
90 extern void iwl5000_nic_config(struct iwl_priv
*priv
);
91 extern u16
iwl5000_eeprom_calib_version(struct iwl_priv
*priv
);
92 extern const u8
*iwl5000_eeprom_query_addr(const struct iwl_priv
*priv
,
94 extern void iwl5000_txq_update_byte_cnt_tbl(struct iwl_priv
*priv
,
95 struct iwl_tx_queue
*txq
,
97 extern void iwl5000_txq_inval_byte_cnt_tbl(struct iwl_priv
*priv
,
98 struct iwl_tx_queue
*txq
);
99 extern int iwl5000_load_ucode(struct iwl_priv
*priv
);
100 extern void iwl5000_init_alive_start(struct iwl_priv
*priv
);
101 extern int iwl5000_alive_notify(struct iwl_priv
*priv
);
102 extern int iwl5000_hw_set_hw_params(struct iwl_priv
*priv
);
103 extern int iwl5000_txq_agg_enable(struct iwl_priv
*priv
, int txq_id
,
104 int tx_fifo
, int sta_id
, int tid
, u16 ssn_idx
);
105 extern int iwl5000_txq_agg_disable(struct iwl_priv
*priv
, u16 txq_id
,
106 u16 ssn_idx
, u8 tx_fifo
);
107 extern void iwl5000_txq_set_sched(struct iwl_priv
*priv
, u32 mask
);
108 extern void iwl5000_setup_deferred_work(struct iwl_priv
*priv
);
109 extern void iwl5000_rx_handler_setup(struct iwl_priv
*priv
);
110 extern int iwl5000_hw_valid_rtc_data_addr(u32 addr
);
111 extern int iwl5000_send_tx_power(struct iwl_priv
*priv
);
112 extern void iwl5000_temperature(struct iwl_priv
*priv
);
114 /* CT-KILL constants */
115 #define CT_KILL_THRESHOLD_LEGACY 110 /* in Celsius */
116 #define CT_KILL_THRESHOLD 114 /* in Celsius */
117 #define CT_KILL_EXIT_THRESHOLD 95 /* in Celsius */
119 /* Default noise level to report when noise measurement is not available.
120 * This may be because we're:
121 * 1) Not associated (4965, no beacon statistics being sent to driver)
122 * 2) Scanning (noise measurement does not apply to associated channel)
123 * 3) Receiving CCK (3945 delivers noise info only for OFDM frames)
124 * Use default noise value of -127 ... this is below the range of measurable
125 * Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
126 * Also, -127 works better than 0 when averaging frames with/without
127 * noise info (e.g. averaging might be done in app); measured dBm values are
128 * always negative ... using a negative value as the default keeps all
129 * averages within an s8's (used in some apps) range of negative values. */
130 #define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
133 * RTS threshold here is total size [2347] minus 4 FCS bytes
135 * a value of 0 means RTS on all data/management packets
136 * a value > max MSDU size means no RTS
137 * else RTS for data/management frames where MPDU is larger
140 #define DEFAULT_RTS_THRESHOLD 2347U
141 #define MIN_RTS_THRESHOLD 0U
142 #define MAX_RTS_THRESHOLD 2347U
143 #define MAX_MSDU_SIZE 2304U
144 #define MAX_MPDU_SIZE 2346U
145 #define DEFAULT_BEACON_INTERVAL 100U
146 #define DEFAULT_SHORT_RETRY_LIMIT 7U
147 #define DEFAULT_LONG_RETRY_LIMIT 4U
149 struct iwl_rx_mem_buffer
{
150 dma_addr_t real_dma_addr
;
151 dma_addr_t aligned_dma_addr
;
153 struct list_head list
;
157 struct iwl_device_cmd
;
159 struct iwl_cmd_meta
{
160 /* only for SYNC commands, iff the reply skb is wanted */
161 struct iwl_host_cmd
*source
;
163 * only for ASYNC commands
164 * (which is somewhat stupid -- look at iwl-sta.c for instance
165 * which duplicates a bunch of code because the callback isn't
166 * invoked for SYNC commands, if it were and its result passed
167 * through it would be simpler...)
169 void (*callback
)(struct iwl_priv
*priv
,
170 struct iwl_device_cmd
*cmd
,
171 struct sk_buff
*skb
);
173 /* The CMD_SIZE_HUGE flag bit indicates that the command
174 * structure is stored at the end of the shared queue memory. */
177 DECLARE_PCI_UNMAP_ADDR(mapping
)
178 DECLARE_PCI_UNMAP_LEN(len
)
182 * Generic queue structure
184 * Contains common data for Rx and Tx queues
187 int n_bd
; /* number of BDs in this queue */
188 int write_ptr
; /* 1-st empty entry (index) host_w*/
189 int read_ptr
; /* last used entry (index) host_r*/
190 dma_addr_t dma_addr
; /* physical addr for BD's */
191 int n_window
; /* safe queue window */
193 int low_mark
; /* low watermark, resume queue if free
194 * space more than this */
195 int high_mark
; /* high watermark, stop queue if free
196 * space less than this */
197 } __attribute__ ((packed
));
199 /* One for each TFD */
201 struct sk_buff
*skb
[IWL_NUM_OF_TBS
- 1];
205 * struct iwl_tx_queue - Tx Queue for DMA
206 * @q: generic Rx/Tx queue descriptor
207 * @bd: base of circular buffer of TFDs
208 * @cmd: array of command/TX buffer pointers
209 * @meta: array of meta data for each command/tx buffer
210 * @dma_addr_cmd: physical address of cmd/tx buffer array
211 * @txb: array of per-TFD driver data
212 * @need_update: indicates need to update read/write index
213 * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
215 * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
216 * descriptors) and required locking structures.
218 #define TFD_TX_CMD_SLOTS 256
219 #define TFD_CMD_SLOTS 32
221 struct iwl_tx_queue
{
224 struct iwl_device_cmd
**cmd
;
225 struct iwl_cmd_meta
*meta
;
226 struct iwl_tx_info
*txb
;
233 #define IWL_NUM_SCAN_RATES (2)
235 struct iwl4965_channel_tgd_info
{
240 struct iwl4965_channel_tgh_info
{
244 #define IWL4965_MAX_RATE (33)
246 struct iwl3945_clip_group
{
247 /* maximum power level to prevent clipping for each rate, derived by
248 * us from this band's saturation power in EEPROM */
249 const s8 clip_powers
[IWL_MAX_RATES
];
252 /* current Tx power values to use, one for each rate for each channel.
253 * requested power is limited by:
254 * -- regulatory EEPROM limits for this channel
255 * -- hardware capabilities (clip-powers)
256 * -- spectrum management
257 * -- user preference (e.g. iwconfig)
258 * when requested power is set, base power index must also be set. */
259 struct iwl3945_channel_power_info
{
260 struct iwl3945_tx_power tpc
; /* actual radio and DSP gain settings */
261 s8 power_table_index
; /* actual (compenst'd) index into gain table */
262 s8 base_power_index
; /* gain index for power at factory temp. */
263 s8 requested_power
; /* power (dBm) requested for this chnl/rate */
266 /* current scan Tx power values to use, one for each scan rate for each
268 struct iwl3945_scan_power_info
{
269 struct iwl3945_tx_power tpc
; /* actual radio and DSP gain settings */
270 s8 power_table_index
; /* actual (compenst'd) index into gain table */
271 s8 requested_power
; /* scan pwr (dBm) requested for chnl/rate */
275 * One for each channel, holds all channel setup data
276 * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
279 struct iwl_channel_info
{
280 struct iwl4965_channel_tgd_info tgd
;
281 struct iwl4965_channel_tgh_info tgh
;
282 struct iwl_eeprom_channel eeprom
; /* EEPROM regulatory limit */
283 struct iwl_eeprom_channel ht40_eeprom
; /* EEPROM regulatory limit for
286 u8 channel
; /* channel number */
287 u8 flags
; /* flags copied from EEPROM */
288 s8 max_power_avg
; /* (dBm) regul. eeprom, normal Tx, any rate */
289 s8 curr_txpow
; /* (dBm) regulatory/spectrum/user (not h/w) limit */
290 s8 min_power
; /* always 0 */
291 s8 scan_power
; /* (dBm) regul. eeprom, direct scans, any rate */
293 u8 group_index
; /* 0-4, maps channel to group1/2/3/4/5 */
294 u8 band_index
; /* 0-4, maps channel to band1/2/3/4/5 */
295 enum ieee80211_band band
;
297 /* HT40 channel info */
298 s8 ht40_max_power_avg
; /* (dBm) regul. eeprom, normal Tx, any rate */
299 s8 ht40_curr_txpow
; /* (dBm) regulatory/spectrum/user (not h/w) */
300 s8 ht40_min_power
; /* always 0 */
301 s8 ht40_scan_power
; /* (dBm) eeprom, direct scans, any rate */
302 u8 ht40_flags
; /* flags copied from EEPROM */
303 u8 ht40_extension_channel
; /* HT_IE_EXT_CHANNEL_* */
305 /* Radio/DSP gain settings for each "normal" data Tx rate.
306 * These include, in addition to RF and DSP gain, a few fields for
307 * remembering/modifying gain settings (indexes). */
308 struct iwl3945_channel_power_info power_info
[IWL4965_MAX_RATE
];
310 /* Radio/DSP gain settings for each scan rate, for directed scans. */
311 struct iwl3945_scan_power_info scan_pwr_info
[IWL_NUM_SCAN_RATES
];
314 #define IWL_TX_FIFO_AC0 0
315 #define IWL_TX_FIFO_AC1 1
316 #define IWL_TX_FIFO_AC2 2
317 #define IWL_TX_FIFO_AC3 3
318 #define IWL_TX_FIFO_HCCA_1 5
319 #define IWL_TX_FIFO_HCCA_2 6
320 #define IWL_TX_FIFO_NONE 7
322 /* Minimum number of queues. MAX_NUM is defined in hw specific files.
323 * Set the minimum to accommodate the 4 standard TX queues, 1 command
324 * queue, 2 (unused) HCCA queues, and 4 HT queues (one for each AC) */
325 #define IWL_MIN_NUM_QUEUES 10
327 /* Power management (not Tx power) structures */
334 #define IEEE80211_DATA_LEN 2304
335 #define IEEE80211_4ADDR_LEN 30
336 #define IEEE80211_HLEN (IEEE80211_4ADDR_LEN)
337 #define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
341 struct ieee80211_hdr frame
;
342 struct iwl_tx_beacon_cmd beacon
;
343 u8 raw
[IEEE80211_FRAME_LEN
];
346 struct list_head list
;
349 #define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
350 #define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
351 #define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
357 CMD_SIZE_HUGE
= (1 << 0),
358 CMD_ASYNC
= (1 << 1),
359 CMD_WANT_SKB
= (1 << 2),
362 #define IWL_CMD_MAX_PAYLOAD 320
365 * struct iwl_device_cmd
367 * For allocation of the command and tx queues, this establishes the overall
368 * size of the largest command we send to uCode, except for a scan command
369 * (which is relatively huge; space is allocated separately).
371 struct iwl_device_cmd
{
372 struct iwl_cmd_header hdr
; /* uCode API */
378 struct iwl_tx_cmd tx
;
379 u8 payload
[IWL_CMD_MAX_PAYLOAD
];
380 } __attribute__ ((packed
)) cmd
;
381 } __attribute__ ((packed
));
383 #define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_device_cmd))
386 struct iwl_host_cmd
{
388 struct sk_buff
*reply_skb
;
389 void (*callback
)(struct iwl_priv
*priv
,
390 struct iwl_device_cmd
*cmd
,
391 struct sk_buff
*skb
);
398 * RX related structures and functions
400 #define RX_FREE_BUFFERS 64
401 #define RX_LOW_WATERMARK 8
403 #define SUP_RATE_11A_MAX_NUM_CHANNELS 8
404 #define SUP_RATE_11B_MAX_NUM_CHANNELS 4
405 #define SUP_RATE_11G_MAX_NUM_CHANNELS 12
408 * struct iwl_rx_queue - Rx queue
409 * @bd: driver's pointer to buffer of receive buffer descriptors (rbd)
410 * @dma_addr: bus address of buffer of receive buffer descriptors (rbd)
411 * @read: Shared index to newest available Rx buffer
412 * @write: Shared index to oldest written Rx packet
413 * @free_count: Number of pre-allocated buffers in rx_free
414 * @rx_free: list of free SKBs for use
415 * @rx_used: List of Rx buffers with no SKB
416 * @need_update: flag to indicate we need to update read/write index
417 * @rb_stts: driver's pointer to receive buffer status
418 * @rb_stts_dma: bus address of receive buffer status
420 * NOTE: rx_free and rx_used are used as a FIFO for iwl_rx_mem_buffers
422 struct iwl_rx_queue
{
425 struct iwl_rx_mem_buffer pool
[RX_QUEUE_SIZE
+ RX_FREE_BUFFERS
];
426 struct iwl_rx_mem_buffer
*queue
[RX_QUEUE_SIZE
];
431 struct list_head rx_free
;
432 struct list_head rx_used
;
434 struct iwl_rb_status
*rb_stts
;
435 dma_addr_t rb_stts_dma
;
439 #define IWL_SUPPORTED_RATES_IE_LEN 8
441 #define MAX_TID_COUNT 9
443 #define IWL_INVALID_RATE 0xFF
444 #define IWL_INVALID_VALUE -1
447 * struct iwl_ht_agg -- aggregation status while waiting for block-ack
448 * @txq_id: Tx queue used for Tx attempt
449 * @frame_count: # frames attempted by Tx command
450 * @wait_for_ba: Expect block-ack before next Tx reply
451 * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window
452 * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window
453 * @bitmap1: High order, one bit for each frame pending ACK in Tx window
454 * @rate_n_flags: Rate at which Tx was attempted
456 * If REPLY_TX indicates that aggregation was attempted, driver must wait
457 * for block ack (REPLY_COMPRESSED_BA). This struct stores tx reply info
458 * until block ack arrives.
467 #define IWL_AGG_OFF 0
469 #define IWL_EMPTYING_HW_QUEUE_ADDBA 2
470 #define IWL_EMPTYING_HW_QUEUE_DELBA 3
475 struct iwl_tid_data
{
478 struct iwl_ht_agg agg
;
482 enum ieee80211_key_alg alg
;
488 union iwl_ht_rate_supp
{
496 #define CFG_HT_RX_AMPDU_FACTOR_DEF (0x3)
499 * Maximal MPDU density for TX aggregation
505 #define CFG_HT_MPDU_DENSITY_4USEC (0x5)
506 #define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_4USEC
508 struct iwl_ht_config
{
509 /* self configuration data */
512 bool single_chain_sufficient
;
513 /* BSS related data */
514 u8 extension_chan_offset
;
516 u8 non_GF_STA_present
;
519 union iwl_qos_capabity
{
521 u8 edca_count
:4; /* bit 0-3 */
522 u8 q_ack
:1; /* bit 4 */
523 u8 queue_request
:1; /* bit 5 */
524 u8 txop_request
:1; /* bit 6 */
525 u8 reserved
:1; /* bit 7 */
528 u8 acvo_APSD
:1; /* bit 0 */
529 u8 acvi_APSD
:1; /* bit 1 */
530 u8 ac_bk_APSD
:1; /* bit 2 */
531 u8 ac_be_APSD
:1; /* bit 3 */
532 u8 q_ack
:1; /* bit 4 */
533 u8 max_len
:2; /* bit 5-6 */
534 u8 more_data_ack
:1; /* bit 7 */
540 struct iwl_qos_info
{
542 union iwl_qos_capabity qos_cap
;
543 struct iwl_qosparam_cmd def_qos_parm
;
546 #define STA_PS_STATUS_WAKE 0
547 #define STA_PS_STATUS_SLEEP 1
550 struct iwl3945_station_entry
{
551 struct iwl3945_addsta_cmd sta
;
552 struct iwl_tid_data tid
[MAX_TID_COUNT
];
555 struct iwl_hw_key keyinfo
;
558 struct iwl_station_entry
{
559 struct iwl_addsta_cmd sta
;
560 struct iwl_tid_data tid
[MAX_TID_COUNT
];
563 struct iwl_hw_key keyinfo
;
566 /* one for each uCode image (inst/data, boot/init/runtime) */
568 void *v_addr
; /* access by driver */
569 dma_addr_t p_addr
; /* access by card's busmaster DMA */
573 /* uCode file layout */
574 struct iwl_ucode_header
{
575 __le32 ver
; /* major/minor/API/serial */
578 __le32 inst_size
; /* bytes of runtime code */
579 __le32 data_size
; /* bytes of runtime data */
580 __le32 init_size
; /* bytes of init code */
581 __le32 init_data_size
; /* bytes of init data */
582 __le32 boot_size
; /* bytes of bootstrap code */
583 u8 data
[0]; /* in same order as sizes */
586 __le32 build
; /* build number */
587 __le32 inst_size
; /* bytes of runtime code */
588 __le32 data_size
; /* bytes of runtime data */
589 __le32 init_size
; /* bytes of init code */
590 __le32 init_data_size
; /* bytes of init data */
591 __le32 boot_size
; /* bytes of bootstrap code */
592 u8 data
[0]; /* in same order as sizes */
596 #define UCODE_HEADER_SIZE(ver) ((ver) == 1 ? 24 : 28)
598 struct iwl4965_ibss_seq
{
602 unsigned long packet_time
;
603 struct list_head list
;
606 struct iwl_sensitivity_ranges
{
613 u16 auto_corr_min_ofdm
;
614 u16 auto_corr_min_ofdm_mrc
;
615 u16 auto_corr_min_ofdm_x1
;
616 u16 auto_corr_min_ofdm_mrc_x1
;
618 u16 auto_corr_max_ofdm
;
619 u16 auto_corr_max_ofdm_mrc
;
620 u16 auto_corr_max_ofdm_x1
;
621 u16 auto_corr_max_ofdm_mrc_x1
;
623 u16 auto_corr_max_cck
;
624 u16 auto_corr_max_cck_mrc
;
625 u16 auto_corr_min_cck
;
626 u16 auto_corr_min_cck_mrc
;
630 #define KELVIN_TO_CELSIUS(x) ((x)-273)
631 #define CELSIUS_TO_KELVIN(x) ((x)+273)
635 * struct iwl_hw_params
636 * @max_txq_num: Max # Tx queues supported
637 * @dma_chnl_num: Number of Tx DMA/FIFO channels
638 * @scd_bc_tbls_size: size of scheduler byte count tables
639 * @tfd_size: TFD size
640 * @tx/rx_chains_num: Number of TX/RX chains
641 * @valid_tx/rx_ant: usable antennas
642 * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
643 * @max_rxq_log: Log-base-2 of max_rxq_size
644 * @rx_buf_size: Rx buffer size
645 * @rx_wrt_ptr_reg: FH{39}_RSCSR_CHNL0_WPTR
648 * @ht40_channel: is 40MHz width possible in band 2.4
649 * BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ)
650 * @sw_crypto: 0 for hw, 1 for sw
651 * @max_xxx_size: for ucode uses
652 * @ct_kill_threshold: temperature threshold
653 * @calib_init_cfg: setup initial calibrations for the hw
654 * @struct iwl_sensitivity_ranges: range of sensitivity values
656 struct iwl_hw_params
{
659 u16 scd_bc_tbls_size
;
673 u8 max_beacon_itrvl
; /* in 1024 ms */
677 u32 ct_kill_threshold
; /* value in hw-dependent units */
678 u32 ct_kill_exit_threshold
; /* value in hw-dependent units */
679 /* for 1000, 6000 series and up */
681 const struct iwl_sensitivity_ranges
*sens
;
685 /******************************************************************************
687 * Functions implemented in core module which are forward declared here
688 * for use by iwl-[4-5].c
690 * NOTE: The implementation of these functions are not hardware specific
691 * which is why they are in the core module files.
693 * Naming convention --
694 * iwl_ <-- Is part of iwlwifi
695 * iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
696 * iwl4965_bg_ <-- Called from work queue context
697 * iwl4965_mac_ <-- mac80211 callback
699 ****************************************************************************/
700 extern void iwl_update_chain_flags(struct iwl_priv
*priv
);
701 extern int iwl_set_pwr_src(struct iwl_priv
*priv
, enum iwl_pwr_src src
);
702 extern const u8 iwl_bcast_addr
[ETH_ALEN
];
703 extern int iwl_rxq_stop(struct iwl_priv
*priv
);
704 extern void iwl_txq_ctx_stop(struct iwl_priv
*priv
);
705 extern int iwl_queue_space(const struct iwl_queue
*q
);
706 static inline int iwl_queue_used(const struct iwl_queue
*q
, int i
)
708 return q
->write_ptr
> q
->read_ptr
?
709 (i
>= q
->read_ptr
&& i
< q
->write_ptr
) :
710 !(i
< q
->read_ptr
&& i
>= q
->write_ptr
);
714 static inline u8
get_cmd_index(struct iwl_queue
*q
, u32 index
, int is_huge
)
716 /* This is for scan command, the big buffer at end of command array */
718 return q
->n_window
; /* must be power of 2 */
720 /* Otherwise, use normal size buffers */
721 return index
& (q
->n_window
- 1);
731 #define IWL_OPERATION_MODE_AUTO 0
732 #define IWL_OPERATION_MODE_HT_ONLY 1
733 #define IWL_OPERATION_MODE_MIXED 2
734 #define IWL_OPERATION_MODE_20MHZ 3
736 #define IWL_TX_CRC_SIZE 4
737 #define IWL_TX_DELIMITER_SIZE 4
739 #define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
741 /* Sensitivity and chain noise calibration */
742 #define INITIALIZATION_VALUE 0xFFFF
743 #define IWL4965_CAL_NUM_BEACONS 20
744 #define IWL_CAL_NUM_BEACONS 16
745 #define MAXIMUM_ALLOWED_PATHLOSS 15
747 #define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
749 #define MAX_FA_OFDM 50
750 #define MIN_FA_OFDM 5
751 #define MAX_FA_CCK 50
754 #define AUTO_CORR_STEP_OFDM 1
756 #define AUTO_CORR_STEP_CCK 3
757 #define AUTO_CORR_MAX_TH_CCK 160
760 #define NRG_STEP_CCK 2
762 #define MAX_NUMBER_CCK_NO_FA 100
764 #define AUTO_CORR_CCK_MIN_VAL_DEF (125)
769 #define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
770 #define ALL_BAND_FILTER 0xFF00
771 #define IN_BAND_FILTER 0xFF
772 #define MIN_AVERAGE_NOISE_MAX_VALUE 0xFFFFFFFF
774 #define NRG_NUM_PREV_STAT_L 20
775 #define NUM_RX_CHAINS 3
777 enum iwl4965_false_alarm_state
{
780 IWL_FA_GOOD_RANGE
= 2,
783 enum iwl4965_chain_noise_state
{
784 IWL_CHAIN_NOISE_ALIVE
= 0, /* must be 0 */
785 IWL_CHAIN_NOISE_ACCUMULATE
,
786 IWL_CHAIN_NOISE_CALIBRATED
,
787 IWL_CHAIN_NOISE_DONE
,
790 enum iwl4965_calib_enabled_state
{
791 IWL_CALIB_DISABLED
= 0, /* must be 0 */
792 IWL_CALIB_ENABLED
= 1,
798 * defines the order in which results of initial calibrations
799 * should be sent to the runtime uCode
806 IWL_CALIB_TX_IQ_PERD
,
811 /* Opaque calibration results */
812 struct iwl_calib_result
{
823 /* Sensitivity calib data */
824 struct iwl_sensitivity_data
{
826 u32 auto_corr_ofdm_mrc
;
827 u32 auto_corr_ofdm_x1
;
828 u32 auto_corr_ofdm_mrc_x1
;
830 u32 auto_corr_cck_mrc
;
832 u32 last_bad_plcp_cnt_ofdm
;
833 u32 last_fa_cnt_ofdm
;
834 u32 last_bad_plcp_cnt_cck
;
840 u8 nrg_silence_rssi
[NRG_NUM_PREV_STAT_L
];
845 s32 nrg_auto_corr_silence_diff
;
846 u32 num_in_cck_no_fa
;
850 /* Chain noise (differential Rx gain) calib data */
851 struct iwl_chain_noise_data
{
860 u8 disconn_array
[NUM_RX_CHAINS
];
861 u8 delta_gain_code
[NUM_RX_CHAINS
];
866 #define EEPROM_SEM_TIMEOUT 10 /* milliseconds */
867 #define EEPROM_SEM_RETRY_LIMIT 1000 /* number of attempts (not time) */
869 #define IWL_TRAFFIC_ENTRIES (256)
870 #define IWL_TRAFFIC_ENTRY_SIZE (64)
873 MEASUREMENT_READY
= (1 << 0),
874 MEASUREMENT_ACTIVE
= (1 << 1),
878 NVM_DEVICE_TYPE_EEPROM
= 0,
883 * Two types of OTP memory access modes
884 * IWL_OTP_ACCESS_ABSOLUTE - absolute address mode,
885 * based on physical memory addressing
886 * IWL_OTP_ACCESS_RELATIVE - relative address mode,
887 * based on logical memory addressing
889 enum iwl_access_mode
{
890 IWL_OTP_ACCESS_ABSOLUTE
,
891 IWL_OTP_ACCESS_RELATIVE
,
895 * enum iwl_pa_type - Power Amplifier type
896 * @IWL_PA_SYSTEM: based on uCode configuration
897 * @IWL_PA_HYBRID: use both Internal and external PA
898 * @IWL_PA_INTERNAL: use Internal only
906 /* interrupt statistics */
907 struct isr_statistics
{
917 u32 rx_handlers
[REPLY_MAX
];
922 #ifdef CONFIG_IWLWIFI_DEBUGFS
923 /* management statistics */
924 enum iwl_mgmt_stats
{
925 MANAGEMENT_ASSOC_REQ
= 0,
926 MANAGEMENT_ASSOC_RESP
,
927 MANAGEMENT_REASSOC_REQ
,
928 MANAGEMENT_REASSOC_RESP
,
929 MANAGEMENT_PROBE_REQ
,
930 MANAGEMENT_PROBE_RESP
,
939 /* control statistics */
940 enum iwl_ctrl_stats
{
941 CONTROL_BACK_REQ
= 0,
952 struct traffic_stats
{
953 u32 mgmt
[MANAGEMENT_MAX
];
954 u32 ctrl
[CONTROL_MAX
];
959 struct traffic_stats
{
964 #define IWL_MAX_NUM_QUEUES 20 /* FIXME: do dynamic allocation */
968 /* ieee device used by generic ieee processing code */
969 struct ieee80211_hw
*hw
;
970 struct ieee80211_channel
*ieee_channels
;
971 struct ieee80211_rate
*ieee_rates
;
974 /* temporary frame storage list */
975 struct list_head free_frames
;
978 enum ieee80211_band band
;
981 void (*rx_handlers
[REPLY_MAX
])(struct iwl_priv
*priv
,
982 struct iwl_rx_mem_buffer
*rxb
);
984 struct ieee80211_supported_band bands
[IEEE80211_NUM_BANDS
];
986 #if defined(CONFIG_IWLWIFI_SPECTRUM_MEASUREMENT) || defined(CONFIG_IWL3945_SPECTRUM_MEASUREMENT)
987 /* spectrum measurement report caching */
988 struct iwl_spectrum_notification measure_report
;
989 u8 measurement_status
;
991 /* ucode beacon time */
992 u32 ucode_beacon_time
;
994 /* we allocate array of iwl4965_channel_info for NIC's valid channels.
995 * Access via channel # using indirect index array */
996 struct iwl_channel_info
*channel_info
; /* channel info array */
997 u8 channel_count
; /* # of channels */
999 /* each calibration channel group in the EEPROM has a derived
1000 * clip setting for each rate. 3945 only.*/
1001 const struct iwl3945_clip_group clip39_groups
[5];
1003 /* thermal calibration */
1004 s32 temperature
; /* degrees Kelvin */
1005 s32 last_temperature
;
1007 /* init calibration results */
1008 struct iwl_calib_result calib_results
[IWL_CALIB_MAX
];
1010 /* Scan related variables */
1011 unsigned long last_scan_jiffies
;
1012 unsigned long next_scan_jiffies
;
1013 unsigned long scan_start
;
1014 unsigned long scan_pass_start
;
1015 unsigned long scan_start_tsf
;
1018 struct cfg80211_scan_request
*scan_request
;
1019 u8 scan_tx_ant
[IEEE80211_NUM_BANDS
];
1023 spinlock_t lock
; /* protect general shared data */
1024 spinlock_t hcmd_lock
; /* protect hcmd */
1025 spinlock_t reg_lock
; /* protect hw register access */
1028 /* basic pci-network driver stuff */
1029 struct pci_dev
*pci_dev
;
1031 /* pci hardware address support */
1032 void __iomem
*hw_base
;
1037 /* uCode images, save to reload in case of failure */
1038 u32 ucode_ver
; /* version of ucode, copy of
1040 struct fw_desc ucode_code
; /* runtime inst */
1041 struct fw_desc ucode_data
; /* runtime data original */
1042 struct fw_desc ucode_data_backup
; /* runtime data save/restore */
1043 struct fw_desc ucode_init
; /* initialization inst */
1044 struct fw_desc ucode_init_data
; /* initialization data */
1045 struct fw_desc ucode_boot
; /* bootstrap inst */
1046 enum ucode_type ucode_type
;
1047 u8 ucode_write_complete
; /* the image write is complete */
1050 struct iwl_rxon_time_cmd rxon_timing
;
1052 /* We declare this const so it can only be
1053 * changed via explicit cast within the
1054 * routines that actually update the physical
1056 const struct iwl_rxon_cmd active_rxon
;
1057 struct iwl_rxon_cmd staging_rxon
;
1059 struct iwl_rxon_cmd recovery_rxon
;
1061 /* 1st responses from initialize and runtime uCode images.
1062 * 4965's initialize alive response contains some calibration data. */
1063 struct iwl_init_alive_resp card_alive_init
;
1064 struct iwl_alive_resp card_alive
;
1066 unsigned long last_blink_time
;
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__ */