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_bgn_cfg;
56 extern struct iwl_cfg iwl5100_abg_cfg;
57 extern struct iwl_cfg iwl5150_agn_cfg;
58 extern struct iwl_cfg iwl5150_abg_cfg;
59 extern struct iwl_cfg iwl6000i_2agn_cfg;
60 extern struct iwl_cfg iwl6000i_2abg_cfg;
61 extern struct iwl_cfg iwl6000i_2bg_cfg;
62 extern struct iwl_cfg iwl6000_3agn_cfg;
63 extern struct iwl_cfg iwl6050_2agn_cfg;
64 extern struct iwl_cfg iwl6050_2abg_cfg;
65 extern struct iwl_cfg iwl1000_bgn_cfg;
66 extern struct iwl_cfg iwl1000_bg_cfg;
70 /* shared structures from iwl-5000.c */
71 extern struct iwl_mod_params iwl50_mod_params;
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 void iwl5000_nic_config(struct iwl_priv *priv);
86 extern u16 iwl5000_eeprom_calib_version(struct iwl_priv *priv);
87 extern const u8 *iwl5000_eeprom_query_addr(const struct iwl_priv *priv,
89 extern void iwl5000_txq_update_byte_cnt_tbl(struct iwl_priv *priv,
90 struct iwl_tx_queue *txq,
92 extern void iwl5000_txq_inval_byte_cnt_tbl(struct iwl_priv *priv,
93 struct iwl_tx_queue *txq);
94 extern int iwl5000_load_ucode(struct iwl_priv *priv);
95 extern void iwl5000_init_alive_start(struct iwl_priv *priv);
96 extern int iwl5000_alive_notify(struct iwl_priv *priv);
97 extern int iwl5000_hw_set_hw_params(struct iwl_priv *priv);
98 extern int iwl5000_txq_agg_enable(struct iwl_priv *priv, int txq_id,
99 int tx_fifo, int sta_id, int tid, u16 ssn_idx);
100 extern int iwl5000_txq_agg_disable(struct iwl_priv *priv, u16 txq_id,
101 u16 ssn_idx, u8 tx_fifo);
102 extern void iwl5000_txq_set_sched(struct iwl_priv *priv, u32 mask);
103 extern void iwl5000_setup_deferred_work(struct iwl_priv *priv);
104 extern void iwl5000_rx_handler_setup(struct iwl_priv *priv);
105 extern int iwl5000_hw_valid_rtc_data_addr(u32 addr);
106 extern int iwl5000_send_tx_power(struct iwl_priv *priv);
107 extern void iwl5000_temperature(struct iwl_priv *priv);
109 /* CT-KILL constants */
110 #define CT_KILL_THRESHOLD_LEGACY 110 /* in Celsius */
111 #define CT_KILL_THRESHOLD 114 /* in Celsius */
112 #define CT_KILL_EXIT_THRESHOLD 95 /* in Celsius */
114 /* Default noise level to report when noise measurement is not available.
115 * This may be because we're:
116 * 1) Not associated (4965, no beacon statistics being sent to driver)
117 * 2) Scanning (noise measurement does not apply to associated channel)
118 * 3) Receiving CCK (3945 delivers noise info only for OFDM frames)
119 * Use default noise value of -127 ... this is below the range of measurable
120 * Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
121 * Also, -127 works better than 0 when averaging frames with/without
122 * noise info (e.g. averaging might be done in app); measured dBm values are
123 * always negative ... using a negative value as the default keeps all
124 * averages within an s8's (used in some apps) range of negative values. */
125 #define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
128 * RTS threshold here is total size [2347] minus 4 FCS bytes
130 * a value of 0 means RTS on all data/management packets
131 * a value > max MSDU size means no RTS
132 * else RTS for data/management frames where MPDU is larger
135 #define DEFAULT_RTS_THRESHOLD 2347U
136 #define MIN_RTS_THRESHOLD 0U
137 #define MAX_RTS_THRESHOLD 2347U
138 #define MAX_MSDU_SIZE 2304U
139 #define MAX_MPDU_SIZE 2346U
140 #define DEFAULT_BEACON_INTERVAL 100U
141 #define DEFAULT_SHORT_RETRY_LIMIT 7U
142 #define DEFAULT_LONG_RETRY_LIMIT 4U
144 struct iwl_rx_mem_buffer {
147 struct list_head list;
150 #define rxb_addr(r) page_address(r->page)
153 struct iwl_device_cmd;
155 struct iwl_cmd_meta {
156 /* only for SYNC commands, iff the reply skb is wanted */
157 struct iwl_host_cmd *source;
159 * only for ASYNC commands
160 * (which is somewhat stupid -- look at iwl-sta.c for instance
161 * which duplicates a bunch of code because the callback isn't
162 * invoked for SYNC commands, if it were and its result passed
163 * through it would be simpler...)
165 void (*callback)(struct iwl_priv *priv,
166 struct iwl_device_cmd *cmd,
167 struct iwl_rx_packet *pkt);
169 /* The CMD_SIZE_HUGE flag bit indicates that the command
170 * structure is stored at the end of the shared queue memory. */
173 DECLARE_PCI_UNMAP_ADDR(mapping)
174 DECLARE_PCI_UNMAP_LEN(len)
178 * Generic queue structure
180 * Contains common data for Rx and Tx queues
183 int n_bd; /* number of BDs in this queue */
184 int write_ptr; /* 1-st empty entry (index) host_w*/
185 int read_ptr; /* last used entry (index) host_r*/
186 dma_addr_t dma_addr; /* physical addr for BD's */
187 int n_window; /* safe queue window */
189 int low_mark; /* low watermark, resume queue if free
190 * space more than this */
191 int high_mark; /* high watermark, stop queue if free
192 * space less than this */
193 } __attribute__ ((packed));
195 /* One for each TFD */
197 struct sk_buff *skb[IWL_NUM_OF_TBS - 1];
201 * struct iwl_tx_queue - Tx Queue for DMA
202 * @q: generic Rx/Tx queue descriptor
203 * @bd: base of circular buffer of TFDs
204 * @cmd: array of command/TX buffer pointers
205 * @meta: array of meta data for each command/tx buffer
206 * @dma_addr_cmd: physical address of cmd/tx buffer array
207 * @txb: array of per-TFD driver data
208 * @need_update: indicates need to update read/write index
209 * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
211 * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
212 * descriptors) and required locking structures.
214 #define TFD_TX_CMD_SLOTS 256
215 #define TFD_CMD_SLOTS 32
217 struct iwl_tx_queue {
220 struct iwl_device_cmd **cmd;
221 struct iwl_cmd_meta *meta;
222 struct iwl_tx_info *txb;
229 #define IWL_NUM_SCAN_RATES (2)
231 struct iwl4965_channel_tgd_info {
236 struct iwl4965_channel_tgh_info {
240 #define IWL4965_MAX_RATE (33)
242 struct iwl3945_clip_group {
243 /* maximum power level to prevent clipping for each rate, derived by
244 * us from this band's saturation power in EEPROM */
245 const s8 clip_powers[IWL_MAX_RATES];
248 /* current Tx power values to use, one for each rate for each channel.
249 * requested power is limited by:
250 * -- regulatory EEPROM limits for this channel
251 * -- hardware capabilities (clip-powers)
252 * -- spectrum management
253 * -- user preference (e.g. iwconfig)
254 * when requested power is set, base power index must also be set. */
255 struct iwl3945_channel_power_info {
256 struct iwl3945_tx_power tpc; /* actual radio and DSP gain settings */
257 s8 power_table_index; /* actual (compenst'd) index into gain table */
258 s8 base_power_index; /* gain index for power at factory temp. */
259 s8 requested_power; /* power (dBm) requested for this chnl/rate */
262 /* current scan Tx power values to use, one for each scan rate for each
264 struct iwl3945_scan_power_info {
265 struct iwl3945_tx_power tpc; /* actual radio and DSP gain settings */
266 s8 power_table_index; /* actual (compenst'd) index into gain table */
267 s8 requested_power; /* scan pwr (dBm) requested for chnl/rate */
271 * One for each channel, holds all channel setup data
272 * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
275 struct iwl_channel_info {
276 struct iwl4965_channel_tgd_info tgd;
277 struct iwl4965_channel_tgh_info tgh;
278 struct iwl_eeprom_channel eeprom; /* EEPROM regulatory limit */
279 struct iwl_eeprom_channel ht40_eeprom; /* EEPROM regulatory limit for
282 u8 channel; /* channel number */
283 u8 flags; /* flags copied from EEPROM */
284 s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
285 s8 curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) limit */
286 s8 min_power; /* always 0 */
287 s8 scan_power; /* (dBm) regul. eeprom, direct scans, any rate */
289 u8 group_index; /* 0-4, maps channel to group1/2/3/4/5 */
290 u8 band_index; /* 0-4, maps channel to band1/2/3/4/5 */
291 enum ieee80211_band band;
293 /* HT40 channel info */
294 s8 ht40_max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
295 u8 ht40_flags; /* flags copied from EEPROM */
296 u8 ht40_extension_channel; /* HT_IE_EXT_CHANNEL_* */
298 /* Radio/DSP gain settings for each "normal" data Tx rate.
299 * These include, in addition to RF and DSP gain, a few fields for
300 * remembering/modifying gain settings (indexes). */
301 struct iwl3945_channel_power_info power_info[IWL4965_MAX_RATE];
303 /* Radio/DSP gain settings for each scan rate, for directed scans. */
304 struct iwl3945_scan_power_info scan_pwr_info[IWL_NUM_SCAN_RATES];
307 #define IWL_TX_FIFO_AC0 0
308 #define IWL_TX_FIFO_AC1 1
309 #define IWL_TX_FIFO_AC2 2
310 #define IWL_TX_FIFO_AC3 3
311 #define IWL_TX_FIFO_HCCA_1 5
312 #define IWL_TX_FIFO_HCCA_2 6
313 #define IWL_TX_FIFO_NONE 7
315 /* Minimum number of queues. MAX_NUM is defined in hw specific files.
316 * Set the minimum to accommodate the 4 standard TX queues, 1 command
317 * queue, 2 (unused) HCCA queues, and 4 HT queues (one for each AC) */
318 #define IWL_MIN_NUM_QUEUES 10
321 * Queue #4 is the command queue for 3945/4965/5x00/1000/6x00,
322 * the driver maps it into the appropriate device FIFO for the
325 #define IWL_CMD_QUEUE_NUM 4
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 DEF_CMD_PAYLOAD_SIZE 320
365 * IWL_LINK_HDR_MAX should include ieee80211_hdr, radiotap header,
366 * SNAP header and alignment. It should also be big enough for 802.11
369 #define IWL_LINK_HDR_MAX 64
372 * struct iwl_device_cmd
374 * For allocation of the command and tx queues, this establishes the overall
375 * size of the largest command we send to uCode, except for a scan command
376 * (which is relatively huge; space is allocated separately).
378 struct iwl_device_cmd {
379 struct iwl_cmd_header hdr; /* uCode API */
385 struct iwl_tx_cmd tx;
386 struct iwl6000_channel_switch_cmd chswitch;
387 u8 payload[DEF_CMD_PAYLOAD_SIZE];
388 } __attribute__ ((packed)) cmd;
389 } __attribute__ ((packed));
391 #define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_device_cmd))
394 struct iwl_host_cmd {
396 unsigned long reply_page;
397 void (*callback)(struct iwl_priv *priv,
398 struct iwl_device_cmd *cmd,
399 struct iwl_rx_packet *pkt);
405 #define SUP_RATE_11A_MAX_NUM_CHANNELS 8
406 #define SUP_RATE_11B_MAX_NUM_CHANNELS 4
407 #define SUP_RATE_11G_MAX_NUM_CHANNELS 12
410 * struct iwl_rx_queue - Rx queue
411 * @bd: driver's pointer to buffer of receive buffer descriptors (rbd)
412 * @dma_addr: bus address of buffer of receive buffer descriptors (rbd)
413 * @read: Shared index to newest available Rx buffer
414 * @write: Shared index to oldest written Rx packet
415 * @free_count: Number of pre-allocated buffers in rx_free
416 * @rx_free: list of free SKBs for use
417 * @rx_used: List of Rx buffers with no SKB
418 * @need_update: flag to indicate we need to update read/write index
419 * @rb_stts: driver's pointer to receive buffer status
420 * @rb_stts_dma: bus address of receive buffer status
422 * NOTE: rx_free and rx_used are used as a FIFO for iwl_rx_mem_buffers
424 struct iwl_rx_queue {
427 struct iwl_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
428 struct iwl_rx_mem_buffer *queue[RX_QUEUE_SIZE];
433 struct list_head rx_free;
434 struct list_head rx_used;
436 struct iwl_rb_status *rb_stts;
437 dma_addr_t rb_stts_dma;
441 #define IWL_SUPPORTED_RATES_IE_LEN 8
443 #define MAX_TID_COUNT 9
445 #define IWL_INVALID_RATE 0xFF
446 #define IWL_INVALID_VALUE -1
449 * struct iwl_ht_agg -- aggregation status while waiting for block-ack
450 * @txq_id: Tx queue used for Tx attempt
451 * @frame_count: # frames attempted by Tx command
452 * @wait_for_ba: Expect block-ack before next Tx reply
453 * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window
454 * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window
455 * @bitmap1: High order, one bit for each frame pending ACK in Tx window
456 * @rate_n_flags: Rate at which Tx was attempted
458 * If REPLY_TX indicates that aggregation was attempted, driver must wait
459 * for block ack (REPLY_COMPRESSED_BA). This struct stores tx reply info
460 * until block ack arrives.
469 #define IWL_AGG_OFF 0
471 #define IWL_EMPTYING_HW_QUEUE_ADDBA 2
472 #define IWL_EMPTYING_HW_QUEUE_DELBA 3
477 struct iwl_tid_data {
480 struct iwl_ht_agg agg;
484 enum ieee80211_key_alg alg;
490 union iwl_ht_rate_supp {
498 #define CFG_HT_RX_AMPDU_FACTOR_DEF (0x3)
501 * Maximal MPDU density for TX aggregation
507 #define CFG_HT_MPDU_DENSITY_4USEC (0x5)
508 #define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_4USEC
510 struct iwl_ht_config {
511 /* self configuration data */
514 bool single_chain_sufficient;
515 /* BSS related data */
516 u8 extension_chan_offset;
518 u8 non_GF_STA_present;
521 union iwl_qos_capabity {
523 u8 edca_count:4; /* bit 0-3 */
524 u8 q_ack:1; /* bit 4 */
525 u8 queue_request:1; /* bit 5 */
526 u8 txop_request:1; /* bit 6 */
527 u8 reserved:1; /* bit 7 */
530 u8 acvo_APSD:1; /* bit 0 */
531 u8 acvi_APSD:1; /* bit 1 */
532 u8 ac_bk_APSD:1; /* bit 2 */
533 u8 ac_be_APSD:1; /* bit 3 */
534 u8 q_ack:1; /* bit 4 */
535 u8 max_len:2; /* bit 5-6 */
536 u8 more_data_ack:1; /* bit 7 */
542 struct iwl_qos_info {
544 union iwl_qos_capabity qos_cap;
545 struct iwl_qosparam_cmd def_qos_parm;
548 struct iwl_station_entry {
549 struct iwl_addsta_cmd sta;
550 struct iwl_tid_data tid[MAX_TID_COUNT];
552 struct iwl_hw_key keyinfo;
556 * iwl_station_priv: Driver's private station information
558 * When mac80211 creates a station it reserves some space (hw->sta_data_size)
559 * in the structure for use by driver. This structure is places in that
562 struct iwl_station_priv {
563 struct iwl_lq_sta lq_sta;
564 atomic_t pending_frames;
569 /* one for each uCode image (inst/data, boot/init/runtime) */
571 void *v_addr; /* access by driver */
572 dma_addr_t p_addr; /* access by card's busmaster DMA */
576 /* uCode file layout */
577 struct iwl_ucode_header {
578 __le32 ver; /* major/minor/API/serial */
581 __le32 inst_size; /* bytes of runtime code */
582 __le32 data_size; /* bytes of runtime data */
583 __le32 init_size; /* bytes of init code */
584 __le32 init_data_size; /* bytes of init data */
585 __le32 boot_size; /* bytes of bootstrap code */
586 u8 data[0]; /* in same order as sizes */
589 __le32 build; /* build number */
590 __le32 inst_size; /* bytes of runtime code */
591 __le32 data_size; /* bytes of runtime data */
592 __le32 init_size; /* bytes of init code */
593 __le32 init_data_size; /* bytes of init data */
594 __le32 boot_size; /* bytes of bootstrap code */
595 u8 data[0]; /* in same order as sizes */
599 #define UCODE_HEADER_SIZE(ver) ((ver) == 1 ? 24 : 28)
601 struct iwl4965_ibss_seq {
605 unsigned long packet_time;
606 struct list_head list;
609 struct iwl_sensitivity_ranges {
616 u16 auto_corr_min_ofdm;
617 u16 auto_corr_min_ofdm_mrc;
618 u16 auto_corr_min_ofdm_x1;
619 u16 auto_corr_min_ofdm_mrc_x1;
621 u16 auto_corr_max_ofdm;
622 u16 auto_corr_max_ofdm_mrc;
623 u16 auto_corr_max_ofdm_x1;
624 u16 auto_corr_max_ofdm_mrc_x1;
626 u16 auto_corr_max_cck;
627 u16 auto_corr_max_cck_mrc;
628 u16 auto_corr_min_cck;
629 u16 auto_corr_min_cck_mrc;
631 u16 barker_corr_th_min;
632 u16 barker_corr_th_min_mrc;
637 #define KELVIN_TO_CELSIUS(x) ((x)-273)
638 #define CELSIUS_TO_KELVIN(x) ((x)+273)
642 * struct iwl_hw_params
643 * @max_txq_num: Max # Tx queues supported
644 * @dma_chnl_num: Number of Tx DMA/FIFO channels
645 * @scd_bc_tbls_size: size of scheduler byte count tables
646 * @tfd_size: TFD size
647 * @tx/rx_chains_num: Number of TX/RX chains
648 * @valid_tx/rx_ant: usable antennas
649 * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
650 * @max_rxq_log: Log-base-2 of max_rxq_size
651 * @rx_page_order: Rx buffer page order
652 * @rx_wrt_ptr_reg: FH{39}_RSCSR_CHNL0_WPTR
655 * @ht40_channel: is 40MHz width possible in band 2.4
656 * BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ)
657 * @sw_crypto: 0 for hw, 1 for sw
658 * @max_xxx_size: for ucode uses
659 * @ct_kill_threshold: temperature threshold
660 * @calib_init_cfg: setup initial calibrations for the hw
661 * @struct iwl_sensitivity_ranges: range of sensitivity values
663 struct iwl_hw_params {
666 u16 scd_bc_tbls_size;
679 u8 max_beacon_itrvl; /* in 1024 ms */
683 u32 ct_kill_threshold; /* value in hw-dependent units */
684 u32 ct_kill_exit_threshold; /* value in hw-dependent units */
685 /* for 1000, 6000 series and up */
687 const struct iwl_sensitivity_ranges *sens;
691 /******************************************************************************
693 * Functions implemented in core module which are forward declared here
694 * for use by iwl-[4-5].c
696 * NOTE: The implementation of these functions are not hardware specific
697 * which is why they are in the core module files.
699 * Naming convention --
700 * iwl_ <-- Is part of iwlwifi
701 * iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
702 * iwl4965_bg_ <-- Called from work queue context
703 * iwl4965_mac_ <-- mac80211 callback
705 ****************************************************************************/
706 extern void iwl_update_chain_flags(struct iwl_priv *priv);
707 extern int iwl_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src);
708 extern const u8 iwl_bcast_addr[ETH_ALEN];
709 extern int iwl_rxq_stop(struct iwl_priv *priv);
710 extern void iwl_txq_ctx_stop(struct iwl_priv *priv);
711 extern int iwl_queue_space(const struct iwl_queue *q);
712 static inline int iwl_queue_used(const struct iwl_queue *q, int i)
714 return q->write_ptr >= q->read_ptr ?
715 (i >= q->read_ptr && i < q->write_ptr) :
716 !(i < q->read_ptr && i >= q->write_ptr);
720 static inline u8 get_cmd_index(struct iwl_queue *q, u32 index, int is_huge)
723 * This is for init calibration result and scan command which
724 * required buffer > TFD_MAX_PAYLOAD_SIZE,
725 * the big buffer at end of command array
728 return q->n_window; /* must be power of 2 */
730 /* Otherwise, use normal size buffers */
731 return index & (q->n_window - 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 IWL4965_CAL_NUM_BEACONS 20
754 #define IWL_CAL_NUM_BEACONS 16
755 #define MAXIMUM_ALLOWED_PATHLOSS 15
757 #define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
759 #define MAX_FA_OFDM 50
760 #define MIN_FA_OFDM 5
761 #define MAX_FA_CCK 50
764 #define AUTO_CORR_STEP_OFDM 1
766 #define AUTO_CORR_STEP_CCK 3
767 #define AUTO_CORR_MAX_TH_CCK 160
770 #define NRG_STEP_CCK 2
772 #define MAX_NUMBER_CCK_NO_FA 100
774 #define AUTO_CORR_CCK_MIN_VAL_DEF (125)
779 #define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
780 #define ALL_BAND_FILTER 0xFF00
781 #define IN_BAND_FILTER 0xFF
782 #define MIN_AVERAGE_NOISE_MAX_VALUE 0xFFFFFFFF
784 #define NRG_NUM_PREV_STAT_L 20
785 #define NUM_RX_CHAINS 3
787 enum iwl4965_false_alarm_state {
790 IWL_FA_GOOD_RANGE = 2,
793 enum iwl4965_chain_noise_state {
794 IWL_CHAIN_NOISE_ALIVE = 0, /* must be 0 */
795 IWL_CHAIN_NOISE_ACCUMULATE,
796 IWL_CHAIN_NOISE_CALIBRATED,
797 IWL_CHAIN_NOISE_DONE,
800 enum iwl4965_calib_enabled_state {
801 IWL_CALIB_DISABLED = 0, /* must be 0 */
802 IWL_CALIB_ENABLED = 1,
808 * defines the order in which results of initial calibrations
809 * should be sent to the runtime uCode
816 IWL_CALIB_TX_IQ_PERD,
821 /* Opaque calibration results */
822 struct iwl_calib_result {
833 /* Sensitivity calib data */
834 struct iwl_sensitivity_data {
836 u32 auto_corr_ofdm_mrc;
837 u32 auto_corr_ofdm_x1;
838 u32 auto_corr_ofdm_mrc_x1;
840 u32 auto_corr_cck_mrc;
842 u32 last_bad_plcp_cnt_ofdm;
843 u32 last_fa_cnt_ofdm;
844 u32 last_bad_plcp_cnt_cck;
850 u8 nrg_silence_rssi[NRG_NUM_PREV_STAT_L];
855 s32 nrg_auto_corr_silence_diff;
856 u32 num_in_cck_no_fa;
859 u16 barker_corr_th_min;
860 u16 barker_corr_th_min_mrc;
864 /* Chain noise (differential Rx gain) calib data */
865 struct iwl_chain_noise_data {
874 u8 disconn_array[NUM_RX_CHAINS];
875 u8 delta_gain_code[NUM_RX_CHAINS];
880 #define EEPROM_SEM_TIMEOUT 10 /* milliseconds */
881 #define EEPROM_SEM_RETRY_LIMIT 1000 /* number of attempts (not time) */
883 #define IWL_TRAFFIC_ENTRIES (256)
884 #define IWL_TRAFFIC_ENTRY_SIZE (64)
887 MEASUREMENT_READY = (1 << 0),
888 MEASUREMENT_ACTIVE = (1 << 1),
892 NVM_DEVICE_TYPE_EEPROM = 0,
897 * Two types of OTP memory access modes
898 * IWL_OTP_ACCESS_ABSOLUTE - absolute address mode,
899 * based on physical memory addressing
900 * IWL_OTP_ACCESS_RELATIVE - relative address mode,
901 * based on logical memory addressing
903 enum iwl_access_mode {
904 IWL_OTP_ACCESS_ABSOLUTE,
905 IWL_OTP_ACCESS_RELATIVE,
909 * enum iwl_pa_type - Power Amplifier type
910 * @IWL_PA_SYSTEM: based on uCode configuration
911 * @IWL_PA_INTERNAL: use Internal only
918 /* interrupt statistics */
919 struct isr_statistics {
929 u32 rx_handlers[REPLY_MAX];
934 #ifdef CONFIG_IWLWIFI_DEBUGFS
935 /* management statistics */
936 enum iwl_mgmt_stats {
937 MANAGEMENT_ASSOC_REQ = 0,
938 MANAGEMENT_ASSOC_RESP,
939 MANAGEMENT_REASSOC_REQ,
940 MANAGEMENT_REASSOC_RESP,
941 MANAGEMENT_PROBE_REQ,
942 MANAGEMENT_PROBE_RESP,
951 /* control statistics */
952 enum iwl_ctrl_stats {
953 CONTROL_BACK_REQ = 0,
964 struct traffic_stats {
965 u32 mgmt[MANAGEMENT_MAX];
966 u32 ctrl[CONTROL_MAX];
971 struct traffic_stats {
977 * iwl_switch_rxon: "channel switch" structure
979 * @ switch_in_progress: channel switch in progress
980 * @ channel: new channel
982 struct iwl_switch_rxon {
983 bool switch_in_progress;
989 /* ieee device used by generic ieee processing code */
990 struct ieee80211_hw *hw;
991 struct ieee80211_channel *ieee_channels;
992 struct ieee80211_rate *ieee_rates;
995 /* temporary frame storage list */
996 struct list_head free_frames;
999 enum ieee80211_band band;
1002 void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv,
1003 struct iwl_rx_mem_buffer *rxb);
1005 struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
1007 #if defined(CONFIG_IWLWIFI_SPECTRUM_MEASUREMENT) || defined(CONFIG_IWL3945_SPECTRUM_MEASUREMENT)
1008 /* spectrum measurement report caching */
1009 struct iwl_spectrum_notification measure_report;
1010 u8 measurement_status;
1012 /* ucode beacon time */
1013 u32 ucode_beacon_time;
1015 /* we allocate array of iwl4965_channel_info for NIC's valid channels.
1016 * Access via channel # using indirect index array */
1017 struct iwl_channel_info *channel_info; /* channel info array */
1018 u8 channel_count; /* # of channels */
1020 /* each calibration channel group in the EEPROM has a derived
1021 * clip setting for each rate. 3945 only.*/
1022 const struct iwl3945_clip_group clip39_groups[5];
1024 /* thermal calibration */
1025 s32 temperature; /* degrees Kelvin */
1026 s32 last_temperature;
1028 /* init calibration results */
1029 struct iwl_calib_result calib_results[IWL_CALIB_MAX];
1031 /* Scan related variables */
1032 unsigned long last_scan_jiffies;
1033 unsigned long next_scan_jiffies;
1034 unsigned long scan_start;
1035 unsigned long scan_pass_start;
1036 unsigned long scan_start_tsf;
1039 struct cfg80211_scan_request *scan_request;
1040 u8 scan_tx_ant[IEEE80211_NUM_BANDS];
1044 spinlock_t lock; /* protect general shared data */
1045 spinlock_t hcmd_lock; /* protect hcmd */
1046 spinlock_t reg_lock; /* protect hw register access */
1049 /* basic pci-network driver stuff */
1050 struct pci_dev *pci_dev;
1052 /* pci hardware address support */
1053 void __iomem *hw_base;
1058 /* uCode images, save to reload in case of failure */
1059 u32 ucode_ver; /* version of ucode, copy of
1061 struct fw_desc ucode_code; /* runtime inst */
1062 struct fw_desc ucode_data; /* runtime data original */
1063 struct fw_desc ucode_data_backup; /* runtime data save/restore */
1064 struct fw_desc ucode_init; /* initialization inst */
1065 struct fw_desc ucode_init_data; /* initialization data */
1066 struct fw_desc ucode_boot; /* bootstrap inst */
1067 enum ucode_type ucode_type;
1068 u8 ucode_write_complete; /* the image write is complete */
1071 struct iwl_rxon_time_cmd rxon_timing;
1073 /* We declare this const so it can only be
1074 * changed via explicit cast within the
1075 * routines that actually update the physical
1077 const struct iwl_rxon_cmd active_rxon;
1078 struct iwl_rxon_cmd staging_rxon;
1080 struct iwl_switch_rxon switch_rxon;
1082 /* 1st responses from initialize and runtime uCode images.
1083 * 4965's initialize alive response contains some calibration data. */
1084 struct iwl_init_alive_resp card_alive_init;
1085 struct iwl_alive_resp card_alive;
1087 unsigned long last_blink_time;
1093 u16 active_rate_basic;
1095 u8 assoc_station_added;
1097 struct iwl_sensitivity_data sensitivity_data;
1098 struct iwl_chain_noise_data chain_noise_data;
1099 __le16 sensitivity_tbl[HD_TABLE_SIZE];
1101 struct iwl_ht_config current_ht_config;
1102 u8 last_phy_res[100];
1104 /* Rate scaling data */
1107 wait_queue_head_t wait_command_queue;
1109 int activity_timer_active;
1111 /* Rx and Tx DMA processing queues */
1112 struct iwl_rx_queue rxq;
1113 struct iwl_tx_queue *txq;
1114 unsigned long txq_ctx_active_msk;
1115 struct iwl_dma_ptr kw; /* keep warm address */
1116 struct iwl_dma_ptr scd_bc_tbls;
1118 u32 scd_base_addr; /* scheduler sram base address */
1120 unsigned long status;
1122 int last_rx_rssi; /* From Rx packet statistics */
1123 int last_rx_noise; /* From beacon statistics */
1125 /* counts mgmt, ctl, and data packets */
1126 struct traffic_stats tx_stats;
1127 struct traffic_stats rx_stats;
1129 /* counts interrupts */
1130 struct isr_statistics isr_stats;
1132 struct iwl_power_mgr power_data;
1133 struct iwl_tt_mgmt thermal_throttle;
1135 struct iwl_notif_statistics statistics;
1136 #ifdef CONFIG_IWLWIFI_DEBUG
1137 struct iwl_notif_statistics accum_statistics;
1140 /* context information */
1145 u8 mac_addr[ETH_ALEN];
1147 /*station table variables */
1148 spinlock_t sta_lock;
1150 struct iwl_station_entry stations[IWL_STATION_COUNT];
1151 struct iwl_wep_key wep_keys[WEP_KEYS_MAX];
1154 unsigned long ucode_key_table;
1156 /* queue refcounts */
1157 #define IWL_MAX_HW_QUEUES 32
1158 unsigned long queue_stopped[BITS_TO_LONGS(IWL_MAX_HW_QUEUES)];
1160 atomic_t queue_stop_count[4];
1162 /* Indication if ieee80211_ops->open has been called */
1165 u8 mac80211_registered;
1167 /* Rx'd packet timing information */
1168 u32 last_beacon_time;
1171 /* eeprom -- this is in the card's little endian byte order */
1173 int nvm_device_type;
1174 struct iwl_eeprom_calib_info *calib_info;
1176 enum nl80211_iftype iw_mode;
1178 struct sk_buff *ibss_beacon;
1180 /* Last Rx'd beacon timestamp */
1183 struct ieee80211_vif *vif;
1187 dma_addr_t shared_phys;
1189 struct iwl_hw_params hw_params;
1193 dma_addr_t ict_tbl_dma;
1194 dma_addr_t aligned_ict_tbl_dma;
1201 /* Current association information needed to configure the
1204 u16 assoc_capability;
1206 struct iwl_qos_info qos_data;
1208 struct workqueue_struct *workqueue;
1210 struct work_struct up;
1211 struct work_struct restart;
1212 struct work_struct calibrated_work;
1213 struct work_struct scan_completed;
1214 struct work_struct rx_replenish;
1215 struct work_struct abort_scan;
1216 struct work_struct update_link_led;
1217 struct work_struct auth_work;
1218 struct work_struct report_work;
1219 struct work_struct request_scan;
1220 struct work_struct beacon_update;
1221 struct work_struct tt_work;
1222 struct work_struct ct_enter;
1223 struct work_struct ct_exit;
1225 struct tasklet_struct irq_tasklet;
1227 struct delayed_work init_alive_start;
1228 struct delayed_work alive_start;
1229 struct delayed_work scan_check;
1232 struct delayed_work thermal_periodic;
1233 struct delayed_work rfkill_poll;
1236 s8 tx_power_user_lmt;
1237 s8 tx_power_device_lmt;
1238 s8 tx_power_lmt_in_half_dbm; /* max tx power in half-dBm format */
1241 #ifdef CONFIG_IWLWIFI_DEBUG
1242 /* debugging info */
1243 u32 debug_level; /* per device debugging will override global
1244 iwl_debug_level if set */
1246 atomic_t restrict_refcnt;
1248 #ifdef CONFIG_IWLWIFI_DEBUGFS
1254 struct iwl_debugfs *dbgfs;
1255 #endif /* CONFIG_IWLWIFI_DEBUGFS */
1256 #endif /* CONFIG_IWLWIFI_DEBUG */
1258 struct work_struct txpower_work;
1259 u32 disable_sens_cal;
1260 u32 disable_chain_noise_cal;
1261 u32 disable_tx_power_cal;
1262 struct work_struct run_time_calib_work;
1263 struct timer_list statistics_periodic;
1266 #define IWL_DEFAULT_TX_POWER 0x0F
1268 struct iwl3945_notif_statistics statistics_39;
1273 static inline void iwl_txq_ctx_activate(struct iwl_priv *priv, int txq_id)
1275 set_bit(txq_id, &priv->txq_ctx_active_msk);
1278 static inline void iwl_txq_ctx_deactivate(struct iwl_priv *priv, int txq_id)
1280 clear_bit(txq_id, &priv->txq_ctx_active_msk);
1283 #ifdef CONFIG_IWLWIFI_DEBUG
1284 const char *iwl_get_tx_fail_reason(u32 status);
1286 * iwl_get_debug_level: Return active debug level for device
1288 * Using sysfs it is possible to set per device debug level. This debug
1289 * level will be used if set, otherwise the global debug level which can be
1290 * set via module parameter is used.
1292 static inline u32 iwl_get_debug_level(struct iwl_priv *priv)
1294 if (priv->debug_level)
1295 return priv->debug_level;
1297 return iwl_debug_level;
1300 static inline const char *iwl_get_tx_fail_reason(u32 status) { return ""; }
1302 static inline u32 iwl_get_debug_level(struct iwl_priv *priv)
1304 return iwl_debug_level;
1309 static inline struct ieee80211_hdr *iwl_tx_queue_get_hdr(struct iwl_priv *priv,
1310 int txq_id, int idx)
1312 if (priv->txq[txq_id].txb[idx].skb[0])
1313 return (struct ieee80211_hdr *)priv->txq[txq_id].
1314 txb[idx].skb[0]->data;
1319 static inline int iwl_is_associated(struct iwl_priv *priv)
1321 return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
1324 static inline int is_channel_valid(const struct iwl_channel_info *ch_info)
1326 if (ch_info == NULL)
1328 return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
1331 static inline int is_channel_radar(const struct iwl_channel_info *ch_info)
1333 return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
1336 static inline u8 is_channel_a_band(const struct iwl_channel_info *ch_info)
1338 return ch_info->band == IEEE80211_BAND_5GHZ;
1341 static inline u8 is_channel_bg_band(const struct iwl_channel_info *ch_info)
1343 return ch_info->band == IEEE80211_BAND_2GHZ;
1346 static inline int is_channel_passive(const struct iwl_channel_info *ch)
1348 return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
1351 static inline int is_channel_ibss(const struct iwl_channel_info *ch)
1353 return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
1356 static inline void __iwl_free_pages(struct iwl_priv *priv, struct page *page)
1358 __free_pages(page, priv->hw_params.rx_page_order);
1359 priv->alloc_rxb_page--;
1362 static inline void iwl_free_pages(struct iwl_priv *priv, unsigned long page)
1364 free_pages(page, priv->hw_params.rx_page_order);
1365 priv->alloc_rxb_page--;
1367 #endif /* __iwl_dev_h__ */