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_bgn_cfg
;
57 extern struct iwl_cfg iwl5100_abg_cfg
;
58 extern struct iwl_cfg iwl5150_agn_cfg
;
59 extern struct iwl_cfg iwl5150_abg_cfg
;
60 extern struct iwl_cfg iwl6000h_2agn_cfg
;
61 extern struct iwl_cfg iwl6000i_2agn_cfg
;
62 extern struct iwl_cfg iwl6000_3agn_cfg
;
63 extern struct iwl_cfg iwl6050_2agn_cfg
;
64 extern struct iwl_cfg iwl6050_3agn_cfg
;
65 extern struct iwl_cfg iwl1000_bgn_cfg
;
69 /* shared structures from iwl-5000.c */
70 extern struct iwl_mod_params iwl50_mod_params
;
71 extern struct iwl_ops iwl5000_ops
;
72 extern struct iwl_ucode_ops iwl5000_ucode
;
73 extern struct iwl_lib_ops iwl5000_lib
;
74 extern struct iwl_hcmd_ops iwl5000_hcmd
;
75 extern struct iwl_hcmd_utils_ops iwl5000_hcmd_utils
;
77 /* shared functions from iwl-5000.c */
78 extern u16
iwl5000_get_hcmd_size(u8 cmd_id
, u16 len
);
79 extern u16
iwl5000_build_addsta_hcmd(const struct iwl_addsta_cmd
*cmd
,
81 extern void iwl5000_rts_tx_cmd_flag(struct ieee80211_tx_info
*info
,
83 extern int iwl5000_calc_rssi(struct iwl_priv
*priv
,
84 struct iwl_rx_phy_res
*rx_resp
);
85 extern int iwl5000_apm_init(struct iwl_priv
*priv
);
86 extern void iwl5000_apm_stop(struct iwl_priv
*priv
);
87 extern int iwl5000_apm_reset(struct iwl_priv
*priv
);
88 extern void iwl5000_nic_config(struct iwl_priv
*priv
);
89 extern u16
iwl5000_eeprom_calib_version(struct iwl_priv
*priv
);
90 extern const u8
*iwl5000_eeprom_query_addr(const struct iwl_priv
*priv
,
92 extern void iwl5000_txq_update_byte_cnt_tbl(struct iwl_priv
*priv
,
93 struct iwl_tx_queue
*txq
,
95 extern void iwl5000_txq_inval_byte_cnt_tbl(struct iwl_priv
*priv
,
96 struct iwl_tx_queue
*txq
);
97 extern int iwl5000_load_ucode(struct iwl_priv
*priv
);
98 extern void iwl5000_init_alive_start(struct iwl_priv
*priv
);
99 extern int iwl5000_alive_notify(struct iwl_priv
*priv
);
100 extern int iwl5000_hw_set_hw_params(struct iwl_priv
*priv
);
101 extern int iwl5000_txq_agg_enable(struct iwl_priv
*priv
, int txq_id
,
102 int tx_fifo
, int sta_id
, int tid
, u16 ssn_idx
);
103 extern int iwl5000_txq_agg_disable(struct iwl_priv
*priv
, u16 txq_id
,
104 u16 ssn_idx
, u8 tx_fifo
);
105 extern void iwl5000_txq_set_sched(struct iwl_priv
*priv
, u32 mask
);
106 extern void iwl5000_setup_deferred_work(struct iwl_priv
*priv
);
107 extern void iwl5000_rx_handler_setup(struct iwl_priv
*priv
);
108 extern int iwl5000_hw_valid_rtc_data_addr(u32 addr
);
109 extern int iwl5000_send_tx_power(struct iwl_priv
*priv
);
110 extern void iwl5000_temperature(struct iwl_priv
*priv
);
112 /* CT-KILL constants */
113 #define CT_KILL_THRESHOLD_LEGACY 110 /* in Celsius */
114 #define CT_KILL_THRESHOLD 114 /* in Celsius */
115 #define CT_KILL_EXIT_THRESHOLD 95 /* in Celsius */
117 /* Default noise level to report when noise measurement is not available.
118 * This may be because we're:
119 * 1) Not associated (4965, no beacon statistics being sent to driver)
120 * 2) Scanning (noise measurement does not apply to associated channel)
121 * 3) Receiving CCK (3945 delivers noise info only for OFDM frames)
122 * Use default noise value of -127 ... this is below the range of measurable
123 * Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
124 * Also, -127 works better than 0 when averaging frames with/without
125 * noise info (e.g. averaging might be done in app); measured dBm values are
126 * always negative ... using a negative value as the default keeps all
127 * averages within an s8's (used in some apps) range of negative values. */
128 #define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
131 * RTS threshold here is total size [2347] minus 4 FCS bytes
133 * a value of 0 means RTS on all data/management packets
134 * a value > max MSDU size means no RTS
135 * else RTS for data/management frames where MPDU is larger
138 #define DEFAULT_RTS_THRESHOLD 2347U
139 #define MIN_RTS_THRESHOLD 0U
140 #define MAX_RTS_THRESHOLD 2347U
141 #define MAX_MSDU_SIZE 2304U
142 #define MAX_MPDU_SIZE 2346U
143 #define DEFAULT_BEACON_INTERVAL 100U
144 #define DEFAULT_SHORT_RETRY_LIMIT 7U
145 #define DEFAULT_LONG_RETRY_LIMIT 4U
147 struct iwl_rx_mem_buffer
{
148 dma_addr_t real_dma_addr
;
149 dma_addr_t aligned_dma_addr
;
151 struct list_head list
;
155 struct iwl_device_cmd
;
157 struct iwl_cmd_meta
{
158 /* only for SYNC commands, iff the reply skb is wanted */
159 struct iwl_host_cmd
*source
;
161 * only for ASYNC commands
162 * (which is somewhat stupid -- look at iwl-sta.c for instance
163 * which duplicates a bunch of code because the callback isn't
164 * invoked for SYNC commands, if it were and its result passed
165 * through it would be simpler...)
167 void (*callback
)(struct iwl_priv
*priv
,
168 struct iwl_device_cmd
*cmd
,
169 struct sk_buff
*skb
);
171 /* The CMD_SIZE_HUGE flag bit indicates that the command
172 * structure is stored at the end of the shared queue memory. */
175 DECLARE_PCI_UNMAP_ADDR(mapping
)
176 DECLARE_PCI_UNMAP_LEN(len
)
180 * Generic queue structure
182 * Contains common data for Rx and Tx queues
185 int n_bd
; /* number of BDs in this queue */
186 int write_ptr
; /* 1-st empty entry (index) host_w*/
187 int read_ptr
; /* last used entry (index) host_r*/
188 dma_addr_t dma_addr
; /* physical addr for BD's */
189 int n_window
; /* safe queue window */
191 int low_mark
; /* low watermark, resume queue if free
192 * space more than this */
193 int high_mark
; /* high watermark, stop queue if free
194 * space less than this */
195 } __attribute__ ((packed
));
197 /* One for each TFD */
199 struct sk_buff
*skb
[IWL_NUM_OF_TBS
- 1];
203 * struct iwl_tx_queue - Tx Queue for DMA
204 * @q: generic Rx/Tx queue descriptor
205 * @bd: base of circular buffer of TFDs
206 * @cmd: array of command/TX buffer pointers
207 * @meta: array of meta data for each command/tx buffer
208 * @dma_addr_cmd: physical address of cmd/tx buffer array
209 * @txb: array of per-TFD driver data
210 * @need_update: indicates need to update read/write index
211 * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
213 * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
214 * descriptors) and required locking structures.
216 #define TFD_TX_CMD_SLOTS 256
217 #define TFD_CMD_SLOTS 32
219 struct iwl_tx_queue
{
222 struct iwl_device_cmd
**cmd
;
223 struct iwl_cmd_meta
*meta
;
224 struct iwl_tx_info
*txb
;
231 #define IWL_NUM_SCAN_RATES (2)
233 struct iwl4965_channel_tgd_info
{
238 struct iwl4965_channel_tgh_info
{
242 #define IWL4965_MAX_RATE (33)
244 struct iwl3945_clip_group
{
245 /* maximum power level to prevent clipping for each rate, derived by
246 * us from this band's saturation power in EEPROM */
247 const s8 clip_powers
[IWL_MAX_RATES
];
250 /* current Tx power values to use, one for each rate for each channel.
251 * requested power is limited by:
252 * -- regulatory EEPROM limits for this channel
253 * -- hardware capabilities (clip-powers)
254 * -- spectrum management
255 * -- user preference (e.g. iwconfig)
256 * when requested power is set, base power index must also be set. */
257 struct iwl3945_channel_power_info
{
258 struct iwl3945_tx_power tpc
; /* actual radio and DSP gain settings */
259 s8 power_table_index
; /* actual (compenst'd) index into gain table */
260 s8 base_power_index
; /* gain index for power at factory temp. */
261 s8 requested_power
; /* power (dBm) requested for this chnl/rate */
264 /* current scan Tx power values to use, one for each scan rate for each
266 struct iwl3945_scan_power_info
{
267 struct iwl3945_tx_power tpc
; /* actual radio and DSP gain settings */
268 s8 power_table_index
; /* actual (compenst'd) index into gain table */
269 s8 requested_power
; /* scan pwr (dBm) requested for chnl/rate */
273 * One for each channel, holds all channel setup data
274 * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
277 struct iwl_channel_info
{
278 struct iwl4965_channel_tgd_info tgd
;
279 struct iwl4965_channel_tgh_info tgh
;
280 struct iwl_eeprom_channel eeprom
; /* EEPROM regulatory limit */
281 struct iwl_eeprom_channel ht40_eeprom
; /* EEPROM regulatory limit for
284 u8 channel
; /* channel number */
285 u8 flags
; /* flags copied from EEPROM */
286 s8 max_power_avg
; /* (dBm) regul. eeprom, normal Tx, any rate */
287 s8 curr_txpow
; /* (dBm) regulatory/spectrum/user (not h/w) limit */
288 s8 min_power
; /* always 0 */
289 s8 scan_power
; /* (dBm) regul. eeprom, direct scans, any rate */
291 u8 group_index
; /* 0-4, maps channel to group1/2/3/4/5 */
292 u8 band_index
; /* 0-4, maps channel to band1/2/3/4/5 */
293 enum ieee80211_band band
;
295 /* HT40 channel info */
296 s8 ht40_max_power_avg
; /* (dBm) regul. eeprom, normal Tx, any rate */
297 s8 ht40_curr_txpow
; /* (dBm) regulatory/spectrum/user (not h/w) */
298 s8 ht40_min_power
; /* always 0 */
299 s8 ht40_scan_power
; /* (dBm) eeprom, direct scans, any rate */
300 u8 ht40_flags
; /* flags copied from EEPROM */
301 u8 ht40_extension_channel
; /* HT_IE_EXT_CHANNEL_* */
303 /* Radio/DSP gain settings for each "normal" data Tx rate.
304 * These include, in addition to RF and DSP gain, a few fields for
305 * remembering/modifying gain settings (indexes). */
306 struct iwl3945_channel_power_info power_info
[IWL4965_MAX_RATE
];
308 /* Radio/DSP gain settings for each scan rate, for directed scans. */
309 struct iwl3945_scan_power_info scan_pwr_info
[IWL_NUM_SCAN_RATES
];
312 #define IWL_TX_FIFO_AC0 0
313 #define IWL_TX_FIFO_AC1 1
314 #define IWL_TX_FIFO_AC2 2
315 #define IWL_TX_FIFO_AC3 3
316 #define IWL_TX_FIFO_HCCA_1 5
317 #define IWL_TX_FIFO_HCCA_2 6
318 #define IWL_TX_FIFO_NONE 7
320 /* Minimum number of queues. MAX_NUM is defined in hw specific files.
321 * Set the minimum to accommodate the 4 standard TX queues, 1 command
322 * queue, 2 (unused) HCCA queues, and 4 HT queues (one for each AC) */
323 #define IWL_MIN_NUM_QUEUES 10
325 /* Power management (not Tx power) structures */
332 #define IEEE80211_DATA_LEN 2304
333 #define IEEE80211_4ADDR_LEN 30
334 #define IEEE80211_HLEN (IEEE80211_4ADDR_LEN)
335 #define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
339 struct ieee80211_hdr frame
;
340 struct iwl_tx_beacon_cmd beacon
;
341 u8 raw
[IEEE80211_FRAME_LEN
];
344 struct list_head list
;
347 #define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
348 #define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
349 #define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
355 CMD_SIZE_HUGE
= (1 << 0),
356 CMD_ASYNC
= (1 << 1),
357 CMD_WANT_SKB
= (1 << 2),
360 #define IWL_CMD_MAX_PAYLOAD 320
363 * struct iwl_device_cmd
365 * For allocation of the command and tx queues, this establishes the overall
366 * size of the largest command we send to uCode, except for a scan command
367 * (which is relatively huge; space is allocated separately).
369 struct iwl_device_cmd
{
370 struct iwl_cmd_header hdr
; /* uCode API */
376 struct iwl_tx_cmd tx
;
377 u8 payload
[IWL_CMD_MAX_PAYLOAD
];
378 } __attribute__ ((packed
)) cmd
;
379 } __attribute__ ((packed
));
381 #define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_device_cmd))
384 struct iwl_host_cmd
{
386 struct sk_buff
*reply_skb
;
387 void (*callback
)(struct iwl_priv
*priv
,
388 struct iwl_device_cmd
*cmd
,
389 struct sk_buff
*skb
);
396 * RX related structures and functions
398 #define RX_FREE_BUFFERS 64
399 #define RX_LOW_WATERMARK 8
401 #define SUP_RATE_11A_MAX_NUM_CHANNELS 8
402 #define SUP_RATE_11B_MAX_NUM_CHANNELS 4
403 #define SUP_RATE_11G_MAX_NUM_CHANNELS 12
406 * struct iwl_rx_queue - Rx queue
407 * @bd: driver's pointer to buffer of receive buffer descriptors (rbd)
408 * @dma_addr: bus address of buffer of receive buffer descriptors (rbd)
409 * @read: Shared index to newest available Rx buffer
410 * @write: Shared index to oldest written Rx packet
411 * @free_count: Number of pre-allocated buffers in rx_free
412 * @rx_free: list of free SKBs for use
413 * @rx_used: List of Rx buffers with no SKB
414 * @need_update: flag to indicate we need to update read/write index
415 * @rb_stts: driver's pointer to receive buffer status
416 * @rb_stts_dma: bus address of receive buffer status
418 * NOTE: rx_free and rx_used are used as a FIFO for iwl_rx_mem_buffers
420 struct iwl_rx_queue
{
423 struct iwl_rx_mem_buffer pool
[RX_QUEUE_SIZE
+ RX_FREE_BUFFERS
];
424 struct iwl_rx_mem_buffer
*queue
[RX_QUEUE_SIZE
];
429 struct list_head rx_free
;
430 struct list_head rx_used
;
432 struct iwl_rb_status
*rb_stts
;
433 dma_addr_t rb_stts_dma
;
437 #define IWL_SUPPORTED_RATES_IE_LEN 8
439 #define MAX_TID_COUNT 9
441 #define IWL_INVALID_RATE 0xFF
442 #define IWL_INVALID_VALUE -1
445 * struct iwl_ht_agg -- aggregation status while waiting for block-ack
446 * @txq_id: Tx queue used for Tx attempt
447 * @frame_count: # frames attempted by Tx command
448 * @wait_for_ba: Expect block-ack before next Tx reply
449 * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window
450 * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window
451 * @bitmap1: High order, one bit for each frame pending ACK in Tx window
452 * @rate_n_flags: Rate at which Tx was attempted
454 * If REPLY_TX indicates that aggregation was attempted, driver must wait
455 * for block ack (REPLY_COMPRESSED_BA). This struct stores tx reply info
456 * until block ack arrives.
465 #define IWL_AGG_OFF 0
467 #define IWL_EMPTYING_HW_QUEUE_ADDBA 2
468 #define IWL_EMPTYING_HW_QUEUE_DELBA 3
473 struct iwl_tid_data
{
476 struct iwl_ht_agg agg
;
480 enum ieee80211_key_alg alg
;
486 union iwl_ht_rate_supp
{
494 #define CFG_HT_RX_AMPDU_FACTOR_DEF (0x3)
497 * Maximal MPDU density for TX aggregation
503 #define CFG_HT_MPDU_DENSITY_4USEC (0x5)
504 #define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_4USEC
507 /* self configuration data */
509 u8 supported_chan_width
;
511 struct ieee80211_mcs_info mcs
;
512 /* BSS related data */
513 u8 extension_chan_offset
;
515 u8 non_GF_STA_present
;
518 union iwl_qos_capabity
{
520 u8 edca_count
:4; /* bit 0-3 */
521 u8 q_ack
:1; /* bit 4 */
522 u8 queue_request
:1; /* bit 5 */
523 u8 txop_request
:1; /* bit 6 */
524 u8 reserved
:1; /* bit 7 */
527 u8 acvo_APSD
:1; /* bit 0 */
528 u8 acvi_APSD
:1; /* bit 1 */
529 u8 ac_bk_APSD
:1; /* bit 2 */
530 u8 ac_be_APSD
:1; /* bit 3 */
531 u8 q_ack
:1; /* bit 4 */
532 u8 max_len
:2; /* bit 5-6 */
533 u8 more_data_ack
:1; /* bit 7 */
539 struct iwl_qos_info
{
541 union iwl_qos_capabity qos_cap
;
542 struct iwl_qosparam_cmd def_qos_parm
;
545 #define STA_PS_STATUS_WAKE 0
546 #define STA_PS_STATUS_SLEEP 1
549 struct iwl3945_station_entry
{
550 struct iwl3945_addsta_cmd sta
;
551 struct iwl_tid_data tid
[MAX_TID_COUNT
];
554 struct iwl_hw_key keyinfo
;
557 struct iwl_station_entry
{
558 struct iwl_addsta_cmd sta
;
559 struct iwl_tid_data tid
[MAX_TID_COUNT
];
562 struct iwl_hw_key keyinfo
;
565 /* one for each uCode image (inst/data, boot/init/runtime) */
567 void *v_addr
; /* access by driver */
568 dma_addr_t p_addr
; /* access by card's busmaster DMA */
572 /* uCode file layout */
573 struct iwl_ucode_header
{
574 __le32 ver
; /* major/minor/API/serial */
577 __le32 inst_size
; /* bytes of runtime code */
578 __le32 data_size
; /* bytes of runtime data */
579 __le32 init_size
; /* bytes of init code */
580 __le32 init_data_size
; /* bytes of init data */
581 __le32 boot_size
; /* bytes of bootstrap code */
582 u8 data
[0]; /* in same order as sizes */
585 __le32 build
; /* build number */
586 __le32 inst_size
; /* bytes of runtime code */
587 __le32 data_size
; /* bytes of runtime data */
588 __le32 init_size
; /* bytes of init code */
589 __le32 init_data_size
; /* bytes of init data */
590 __le32 boot_size
; /* bytes of bootstrap code */
591 u8 data
[0]; /* in same order as sizes */
595 #define UCODE_HEADER_SIZE(ver) ((ver) == 1 ? 24 : 28)
597 struct iwl4965_ibss_seq
{
601 unsigned long packet_time
;
602 struct list_head list
;
605 struct iwl_sensitivity_ranges
{
612 u16 auto_corr_min_ofdm
;
613 u16 auto_corr_min_ofdm_mrc
;
614 u16 auto_corr_min_ofdm_x1
;
615 u16 auto_corr_min_ofdm_mrc_x1
;
617 u16 auto_corr_max_ofdm
;
618 u16 auto_corr_max_ofdm_mrc
;
619 u16 auto_corr_max_ofdm_x1
;
620 u16 auto_corr_max_ofdm_mrc_x1
;
622 u16 auto_corr_max_cck
;
623 u16 auto_corr_max_cck_mrc
;
624 u16 auto_corr_min_cck
;
625 u16 auto_corr_min_cck_mrc
;
629 #define KELVIN_TO_CELSIUS(x) ((x)-273)
630 #define CELSIUS_TO_KELVIN(x) ((x)+273)
634 * struct iwl_hw_params
635 * @max_txq_num: Max # Tx queues supported
636 * @dma_chnl_num: Number of Tx DMA/FIFO channels
637 * @scd_bc_tbls_size: size of scheduler byte count tables
638 * @tfd_size: TFD size
639 * @tx/rx_chains_num: Number of TX/RX chains
640 * @valid_tx/rx_ant: usable antennas
641 * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
642 * @max_rxq_log: Log-base-2 of max_rxq_size
643 * @rx_buf_size: Rx buffer size
644 * @rx_wrt_ptr_reg: FH{39}_RSCSR_CHNL0_WPTR
647 * @ht40_channel: is 40MHz width possible in band 2.4
648 * BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ)
649 * @sw_crypto: 0 for hw, 1 for sw
650 * @max_xxx_size: for ucode uses
651 * @ct_kill_threshold: temperature threshold
652 * @calib_init_cfg: setup initial calibrations for the hw
653 * @struct iwl_sensitivity_ranges: range of sensitivity values
655 struct iwl_hw_params
{
658 u16 scd_bc_tbls_size
;
672 u8 max_beacon_itrvl
; /* in 1024 ms */
676 u32 ct_kill_threshold
; /* value in hw-dependent units */
677 u32 ct_kill_exit_threshold
; /* value in hw-dependent units */
678 /* for 1000, 6000 series and up */
680 const struct iwl_sensitivity_ranges
*sens
;
684 /******************************************************************************
686 * Functions implemented in core module which are forward declared here
687 * for use by iwl-[4-5].c
689 * NOTE: The implementation of these functions are not hardware specific
690 * which is why they are in the core module files.
692 * Naming convention --
693 * iwl_ <-- Is part of iwlwifi
694 * iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
695 * iwl4965_bg_ <-- Called from work queue context
696 * iwl4965_mac_ <-- mac80211 callback
698 ****************************************************************************/
699 extern void iwl_update_chain_flags(struct iwl_priv
*priv
);
700 extern int iwl_set_pwr_src(struct iwl_priv
*priv
, enum iwl_pwr_src src
);
701 extern const u8 iwl_bcast_addr
[ETH_ALEN
];
702 extern int iwl_rxq_stop(struct iwl_priv
*priv
);
703 extern void iwl_txq_ctx_stop(struct iwl_priv
*priv
);
704 extern int iwl_queue_space(const struct iwl_queue
*q
);
705 static inline int iwl_queue_used(const struct iwl_queue
*q
, int i
)
707 return q
->write_ptr
>= q
->read_ptr
?
708 (i
>= q
->read_ptr
&& i
< q
->write_ptr
) :
709 !(i
< q
->read_ptr
&& i
>= q
->write_ptr
);
713 static inline u8
get_cmd_index(struct iwl_queue
*q
, u32 index
, int is_huge
)
715 /* This is for scan command, the big buffer at end of command array */
717 return q
->n_window
; /* must be power of 2 */
719 /* Otherwise, use normal size buffers */
720 return index
& (q
->n_window
- 1);
730 #define IWL_CHANNEL_WIDTH_20MHZ 0
731 #define IWL_CHANNEL_WIDTH_40MHZ 1
733 #define IWL_OPERATION_MODE_AUTO 0
734 #define IWL_OPERATION_MODE_HT_ONLY 1
735 #define IWL_OPERATION_MODE_MIXED 2
736 #define IWL_OPERATION_MODE_20MHZ 3
738 #define IWL_TX_CRC_SIZE 4
739 #define IWL_TX_DELIMITER_SIZE 4
741 #define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
743 /* Sensitivity and chain noise calibration */
744 #define INITIALIZATION_VALUE 0xFFFF
745 #define CAL_NUM_OF_BEACONS 20
746 #define MAXIMUM_ALLOWED_PATHLOSS 15
748 #define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
750 #define MAX_FA_OFDM 50
751 #define MIN_FA_OFDM 5
752 #define MAX_FA_CCK 50
755 #define AUTO_CORR_STEP_OFDM 1
757 #define AUTO_CORR_STEP_CCK 3
758 #define AUTO_CORR_MAX_TH_CCK 160
761 #define NRG_STEP_CCK 2
763 #define MAX_NUMBER_CCK_NO_FA 100
765 #define AUTO_CORR_CCK_MIN_VAL_DEF (125)
770 #define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
771 #define ALL_BAND_FILTER 0xFF00
772 #define IN_BAND_FILTER 0xFF
773 #define MIN_AVERAGE_NOISE_MAX_VALUE 0xFFFFFFFF
775 #define NRG_NUM_PREV_STAT_L 20
776 #define NUM_RX_CHAINS 3
778 enum iwl4965_false_alarm_state
{
781 IWL_FA_GOOD_RANGE
= 2,
784 enum iwl4965_chain_noise_state
{
785 IWL_CHAIN_NOISE_ALIVE
= 0, /* must be 0 */
786 IWL_CHAIN_NOISE_ACCUMULATE
,
787 IWL_CHAIN_NOISE_CALIBRATED
,
788 IWL_CHAIN_NOISE_DONE
,
791 enum iwl4965_calib_enabled_state
{
792 IWL_CALIB_DISABLED
= 0, /* must be 0 */
793 IWL_CALIB_ENABLED
= 1,
799 * defines the order in which results of initial calibrations
800 * should be sent to the runtime uCode
807 IWL_CALIB_TX_IQ_PERD
,
812 /* Opaque calibration results */
813 struct iwl_calib_result
{
824 /* Sensitivity calib data */
825 struct iwl_sensitivity_data
{
827 u32 auto_corr_ofdm_mrc
;
828 u32 auto_corr_ofdm_x1
;
829 u32 auto_corr_ofdm_mrc_x1
;
831 u32 auto_corr_cck_mrc
;
833 u32 last_bad_plcp_cnt_ofdm
;
834 u32 last_fa_cnt_ofdm
;
835 u32 last_bad_plcp_cnt_cck
;
841 u8 nrg_silence_rssi
[NRG_NUM_PREV_STAT_L
];
846 s32 nrg_auto_corr_silence_diff
;
847 u32 num_in_cck_no_fa
;
851 /* Chain noise (differential Rx gain) calib data */
852 struct iwl_chain_noise_data
{
861 u8 disconn_array
[NUM_RX_CHAINS
];
862 u8 delta_gain_code
[NUM_RX_CHAINS
];
867 #define EEPROM_SEM_TIMEOUT 10 /* milliseconds */
868 #define EEPROM_SEM_RETRY_LIMIT 1000 /* number of attempts (not time) */
870 #define IWL_TRAFFIC_ENTRIES (256)
871 #define IWL_TRAFFIC_ENTRY_SIZE (64)
874 MEASUREMENT_READY
= (1 << 0),
875 MEASUREMENT_ACTIVE
= (1 << 1),
879 NVM_DEVICE_TYPE_EEPROM
= 0,
884 * Two types of OTP memory access modes
885 * IWL_OTP_ACCESS_ABSOLUTE - absolute address mode,
886 * based on physical memory addressing
887 * IWL_OTP_ACCESS_RELATIVE - relative address mode,
888 * based on logical memory addressing
890 enum iwl_access_mode
{
891 IWL_OTP_ACCESS_ABSOLUTE
,
892 IWL_OTP_ACCESS_RELATIVE
,
896 * enum iwl_pa_type - Power Amplifier type
897 * @IWL_PA_SYSTEM: based on uCode configuration
898 * @IWL_PA_HYBRID: use both Internal and external PA
899 * @IWL_PA_INTERNAL: use Internal only
907 /* interrupt statistics */
908 struct isr_statistics
{
918 u32 rx_handlers
[REPLY_MAX
];
923 #ifdef CONFIG_IWLWIFI_DEBUGFS
924 /* management statistics */
925 enum iwl_mgmt_stats
{
926 MANAGEMENT_ASSOC_REQ
= 0,
927 MANAGEMENT_ASSOC_RESP
,
928 MANAGEMENT_REASSOC_REQ
,
929 MANAGEMENT_REASSOC_RESP
,
930 MANAGEMENT_PROBE_REQ
,
931 MANAGEMENT_PROBE_RESP
,
940 /* control statistics */
941 enum iwl_ctrl_stats
{
942 CONTROL_BACK_REQ
= 0,
953 struct traffic_stats
{
954 u32 mgmt
[MANAGEMENT_MAX
];
955 u32 ctrl
[CONTROL_MAX
];
960 struct traffic_stats
{
965 #define IWL_MAX_NUM_QUEUES 20 /* FIXME: do dynamic allocation */
969 /* ieee device used by generic ieee processing code */
970 struct ieee80211_hw
*hw
;
971 struct ieee80211_channel
*ieee_channels
;
972 struct ieee80211_rate
*ieee_rates
;
975 /* temporary frame storage list */
976 struct list_head free_frames
;
979 enum ieee80211_band band
;
982 void (*rx_handlers
[REPLY_MAX
])(struct iwl_priv
*priv
,
983 struct iwl_rx_mem_buffer
*rxb
);
985 struct ieee80211_supported_band bands
[IEEE80211_NUM_BANDS
];
987 #if defined(CONFIG_IWLWIFI_SPECTRUM_MEASUREMENT) || defined(CONFIG_IWL3945_SPECTRUM_MEASUREMENT)
988 /* spectrum measurement report caching */
989 struct iwl_spectrum_notification measure_report
;
990 u8 measurement_status
;
992 /* ucode beacon time */
993 u32 ucode_beacon_time
;
995 /* we allocate array of iwl4965_channel_info for NIC's valid channels.
996 * Access via channel # using indirect index array */
997 struct iwl_channel_info
*channel_info
; /* channel info array */
998 u8 channel_count
; /* # of channels */
1000 /* each calibration channel group in the EEPROM has a derived
1001 * clip setting for each rate. 3945 only.*/
1002 const struct iwl3945_clip_group clip39_groups
[5];
1004 /* thermal calibration */
1005 s32 temperature
; /* degrees Kelvin */
1006 s32 last_temperature
;
1008 /* init calibration results */
1009 struct iwl_calib_result calib_results
[IWL_CALIB_MAX
];
1011 /* Scan related variables */
1012 unsigned long last_scan_jiffies
;
1013 unsigned long next_scan_jiffies
;
1014 unsigned long scan_start
;
1015 unsigned long scan_pass_start
;
1016 unsigned long scan_start_tsf
;
1019 struct cfg80211_scan_request
*scan_request
;
1020 u8 scan_tx_ant
[IEEE80211_NUM_BANDS
];
1024 spinlock_t lock
; /* protect general shared data */
1025 spinlock_t hcmd_lock
; /* protect hcmd */
1026 spinlock_t reg_lock
; /* protect hw register access */
1029 /* basic pci-network driver stuff */
1030 struct pci_dev
*pci_dev
;
1032 /* pci hardware address support */
1033 void __iomem
*hw_base
;
1038 /* uCode images, save to reload in case of failure */
1039 u32 ucode_ver
; /* version of ucode, copy of
1041 struct fw_desc ucode_code
; /* runtime inst */
1042 struct fw_desc ucode_data
; /* runtime data original */
1043 struct fw_desc ucode_data_backup
; /* runtime data save/restore */
1044 struct fw_desc ucode_init
; /* initialization inst */
1045 struct fw_desc ucode_init_data
; /* initialization data */
1046 struct fw_desc ucode_boot
; /* bootstrap inst */
1047 enum ucode_type ucode_type
;
1048 u8 ucode_write_complete
; /* the image write is complete */
1051 struct iwl_rxon_time_cmd rxon_timing
;
1053 /* We declare this const so it can only be
1054 * changed via explicit cast within the
1055 * routines that actually update the physical
1057 const struct iwl_rxon_cmd active_rxon
;
1058 struct iwl_rxon_cmd staging_rxon
;
1060 struct iwl_rxon_cmd recovery_rxon
;
1062 /* 1st responses from initialize and runtime uCode images.
1063 * 4965's initialize alive response contains some calibration data. */
1064 struct iwl_init_alive_resp card_alive_init
;
1065 struct iwl_alive_resp card_alive
;
1067 #ifdef CONFIG_IWLWIFI_LEDS
1068 unsigned long last_blink_time
;
1072 struct iwl_led led
[IWL_LED_TRG_MAX
];
1073 unsigned int rxtxpackets
;
1076 u16 active_rate_basic
;
1078 u8 assoc_station_added
;
1080 struct iwl_sensitivity_data sensitivity_data
;
1081 struct iwl_chain_noise_data chain_noise_data
;
1082 __le16 sensitivity_tbl
[HD_TABLE_SIZE
];
1084 struct iwl_ht_info current_ht_config
;
1085 u8 last_phy_res
[100];
1087 /* Rate scaling data */
1088 s8 data_retry_limit
;
1091 wait_queue_head_t wait_command_queue
;
1093 int activity_timer_active
;
1095 /* Rx and Tx DMA processing queues */
1096 struct iwl_rx_queue rxq
;
1097 struct iwl_tx_queue txq
[IWL_MAX_NUM_QUEUES
];
1098 unsigned long txq_ctx_active_msk
;
1099 struct iwl_dma_ptr kw
; /* keep warm address */
1100 struct iwl_dma_ptr scd_bc_tbls
;
1102 u32 scd_base_addr
; /* scheduler sram base address */
1104 unsigned long status
;
1106 int last_rx_rssi
; /* From Rx packet statistics */
1107 int last_rx_noise
; /* From beacon statistics */
1109 /* counts mgmt, ctl, and data packets */
1110 struct traffic_stats tx_stats
;
1111 struct traffic_stats rx_stats
;
1113 /* counts interrupts */
1114 struct isr_statistics isr_stats
;
1116 struct iwl_power_mgr power_data
;
1117 struct iwl_tt_mgmt thermal_throttle
;
1119 struct iwl_notif_statistics statistics
;
1120 unsigned long last_statistics_time
;
1122 /* context information */
1127 u8 mac_addr
[ETH_ALEN
];
1129 /*station table variables */
1130 spinlock_t sta_lock
;
1132 struct iwl_station_entry stations
[IWL_STATION_COUNT
];
1133 struct iwl_wep_key wep_keys
[WEP_KEYS_MAX
];
1136 unsigned long ucode_key_table
;
1138 /* queue refcounts */
1139 #define IWL_MAX_HW_QUEUES 32
1140 unsigned long queue_stopped
[BITS_TO_LONGS(IWL_MAX_HW_QUEUES
)];
1142 atomic_t queue_stop_count
[4];
1144 /* Indication if ieee80211_ops->open has been called */
1147 u8 mac80211_registered
;
1149 /* Rx'd packet timing information */
1150 u32 last_beacon_time
;
1153 /* eeprom -- this is in the card's little endian byte order */
1155 int nvm_device_type
;
1156 struct iwl_eeprom_calib_info
*calib_info
;
1158 enum nl80211_iftype iw_mode
;
1160 struct sk_buff
*ibss_beacon
;
1162 /* Last Rx'd beacon timestamp */
1165 struct ieee80211_vif
*vif
;
1169 dma_addr_t shared_phys
;
1171 struct iwl_hw_params hw_params
;
1175 dma_addr_t ict_tbl_dma
;
1176 dma_addr_t aligned_ict_tbl_dma
;
1183 /* Current association information needed to configure the
1186 u16 assoc_capability
;
1188 struct iwl_qos_info qos_data
;
1190 struct workqueue_struct
*workqueue
;
1192 struct work_struct up
;
1193 struct work_struct restart
;
1194 struct work_struct calibrated_work
;
1195 struct work_struct scan_completed
;
1196 struct work_struct rx_replenish
;
1197 struct work_struct abort_scan
;
1198 struct work_struct update_link_led
;
1199 struct work_struct auth_work
;
1200 struct work_struct report_work
;
1201 struct work_struct request_scan
;
1202 struct work_struct beacon_update
;
1203 struct work_struct tt_work
;
1204 struct work_struct ct_enter
;
1205 struct work_struct ct_exit
;
1207 struct tasklet_struct irq_tasklet
;
1209 struct delayed_work init_alive_start
;
1210 struct delayed_work alive_start
;
1211 struct delayed_work scan_check
;
1214 struct delayed_work thermal_periodic
;
1215 struct delayed_work rfkill_poll
;
1218 s8 tx_power_user_lmt
;
1219 s8 tx_power_device_lmt
;
1222 #ifdef CONFIG_IWLWIFI_DEBUG
1223 /* debugging info */
1224 u32 debug_level
; /* per device debugging will override global
1225 iwl_debug_level if set */
1227 atomic_t restrict_refcnt
;
1229 #ifdef CONFIG_IWLWIFI_DEBUGFS
1235 struct iwl_debugfs
*dbgfs
;
1236 #endif /* CONFIG_IWLWIFI_DEBUGFS */
1237 #endif /* CONFIG_IWLWIFI_DEBUG */
1239 struct work_struct txpower_work
;
1240 u32 disable_sens_cal
;
1241 u32 disable_chain_noise_cal
;
1242 u32 disable_tx_power_cal
;
1243 struct work_struct run_time_calib_work
;
1244 struct timer_list statistics_periodic
;
1247 #define IWL_DEFAULT_TX_POWER 0x0F
1249 struct iwl3945_notif_statistics statistics_39
;
1254 static inline void iwl_txq_ctx_activate(struct iwl_priv
*priv
, int txq_id
)
1256 set_bit(txq_id
, &priv
->txq_ctx_active_msk
);
1259 static inline void iwl_txq_ctx_deactivate(struct iwl_priv
*priv
, int txq_id
)
1261 clear_bit(txq_id
, &priv
->txq_ctx_active_msk
);
1264 #ifdef CONFIG_IWLWIFI_DEBUG
1265 const char *iwl_get_tx_fail_reason(u32 status
);
1267 * iwl_get_debug_level: Return active debug level for device
1269 * Using sysfs it is possible to set per device debug level. This debug
1270 * level will be used if set, otherwise the global debug level which can be
1271 * set via module parameter is used.
1273 static inline u32
iwl_get_debug_level(struct iwl_priv
*priv
)
1275 if (priv
->debug_level
)
1276 return priv
->debug_level
;
1278 return iwl_debug_level
;
1281 static inline const char *iwl_get_tx_fail_reason(u32 status
) { return ""; }
1283 static inline u32
iwl_get_debug_level(struct iwl_priv
*priv
)
1285 return iwl_debug_level
;
1290 static inline struct ieee80211_hdr
*iwl_tx_queue_get_hdr(struct iwl_priv
*priv
,
1291 int txq_id
, int idx
)
1293 if (priv
->txq
[txq_id
].txb
[idx
].skb
[0])
1294 return (struct ieee80211_hdr
*)priv
->txq
[txq_id
].
1295 txb
[idx
].skb
[0]->data
;
1300 static inline int iwl_is_associated(struct iwl_priv
*priv
)
1302 return (priv
->active_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
) ? 1 : 0;
1305 static inline int is_channel_valid(const struct iwl_channel_info
*ch_info
)
1307 if (ch_info
== NULL
)
1309 return (ch_info
->flags
& EEPROM_CHANNEL_VALID
) ? 1 : 0;
1312 static inline int is_channel_radar(const struct iwl_channel_info
*ch_info
)
1314 return (ch_info
->flags
& EEPROM_CHANNEL_RADAR
) ? 1 : 0;
1317 static inline u8
is_channel_a_band(const struct iwl_channel_info
*ch_info
)
1319 return ch_info
->band
== IEEE80211_BAND_5GHZ
;
1322 static inline u8
is_channel_bg_band(const struct iwl_channel_info
*ch_info
)
1324 return ch_info
->band
== IEEE80211_BAND_2GHZ
;
1327 static inline int is_channel_passive(const struct iwl_channel_info
*ch
)
1329 return (!(ch
->flags
& EEPROM_CHANNEL_ACTIVE
)) ? 1 : 0;
1332 static inline int is_channel_ibss(const struct iwl_channel_info
*ch
)
1334 return ((ch
->flags
& EEPROM_CHANNEL_IBSS
)) ? 1 : 0;
1337 #endif /* __iwl_dev_h__ */