1 /******************************************************************************
3 * Copyright(c) 2003 - 2008 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 * James P. Ketrenos <ipw2100-admin@linux.intel.com>
23 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
25 *****************************************************************************/
27 * Please use this file (iwl-4965.h) for driver implementation definitions.
28 * Please use iwl-4965-commands.h for uCode API definitions.
29 * Please use iwl-4965-hw.h for hardware-related definitions.
32 #ifndef __iwl_4965_h__
33 #define __iwl_4965_h__
35 #include <linux/pci.h> /* for struct pci_device_id */
36 #include <linux/kernel.h>
37 #include <net/ieee80211_radiotap.h>
39 #define DRV_NAME "iwl4965"
40 #include "iwl-rfkill.h"
41 #include "iwl-eeprom.h"
42 #include "iwl-4965-hw.h"
45 #include "iwl-debug.h"
48 /* configuration for the iwl4965 */
49 extern struct iwl_cfg iwl4965_agn_cfg;
51 /* Change firmware file name, using "-" and incrementing number,
52 * *only* when uCode interface or architecture changes so that it
53 * is not compatible with earlier drivers.
54 * This number will also appear in << 8 position of 1st dword of uCode file */
55 #define IWL4965_UCODE_API "-1"
58 /* Default noise level to report when noise measurement is not available.
59 * This may be because we're:
60 * 1) Not associated (4965, no beacon statistics being sent to driver)
61 * 2) Scanning (noise measurement does not apply to associated channel)
62 * 3) Receiving CCK (3945 delivers noise info only for OFDM frames)
63 * Use default noise value of -127 ... this is below the range of measurable
64 * Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
65 * Also, -127 works better than 0 when averaging frames with/without
66 * noise info (e.g. averaging might be done in app); measured dBm values are
67 * always negative ... using a negative value as the default keeps all
68 * averages within an s8's (used in some apps) range of negative values. */
69 #define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
71 enum iwl4965_antenna {
72 IWL_ANTENNA_DIVERSITY,
78 * RTS threshold here is total size [2347] minus 4 FCS bytes
80 * a value of 0 means RTS on all data/management packets
81 * a value > max MSDU size means no RTS
82 * else RTS for data/management frames where MPDU is larger
85 #define DEFAULT_RTS_THRESHOLD 2347U
86 #define MIN_RTS_THRESHOLD 0U
87 #define MAX_RTS_THRESHOLD 2347U
88 #define MAX_MSDU_SIZE 2304U
89 #define MAX_MPDU_SIZE 2346U
90 #define DEFAULT_BEACON_INTERVAL 100U
91 #define DEFAULT_SHORT_RETRY_LIMIT 7U
92 #define DEFAULT_LONG_RETRY_LIMIT 4U
94 struct iwl4965_rx_mem_buffer {
97 struct list_head list;
101 * Generic queue structure
103 * Contains common data for Rx and Tx queues
105 struct iwl4965_queue {
106 int n_bd; /* number of BDs in this queue */
107 int write_ptr; /* 1-st empty entry (index) host_w*/
108 int read_ptr; /* last used entry (index) host_r*/
109 dma_addr_t dma_addr; /* physical addr for BD's */
110 int n_window; /* safe queue window */
112 int low_mark; /* low watermark, resume queue if free
113 * space more than this */
114 int high_mark; /* high watermark, stop queue if free
115 * space less than this */
116 } __attribute__ ((packed));
118 #define MAX_NUM_OF_TBS (20)
120 /* One for each TFD */
121 struct iwl4965_tx_info {
122 struct ieee80211_tx_status status;
123 struct sk_buff *skb[MAX_NUM_OF_TBS];
127 * struct iwl4965_tx_queue - Tx Queue for DMA
128 * @q: generic Rx/Tx queue descriptor
129 * @bd: base of circular buffer of TFDs
130 * @cmd: array of command/Tx buffers
131 * @dma_addr_cmd: physical address of cmd/tx buffer array
132 * @txb: array of per-TFD driver data
133 * @need_update: indicates need to update read/write index
134 * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
136 * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
137 * descriptors) and required locking structures.
139 struct iwl4965_tx_queue {
140 struct iwl4965_queue q;
141 struct iwl4965_tfd_frame *bd;
143 dma_addr_t dma_addr_cmd;
144 struct iwl4965_tx_info *txb;
150 #define IWL_NUM_SCAN_RATES (2)
152 struct iwl4965_channel_tgd_info {
157 struct iwl4965_channel_tgh_info {
161 /* current Tx power values to use, one for each rate for each channel.
162 * requested power is limited by:
163 * -- regulatory EEPROM limits for this channel
164 * -- hardware capabilities (clip-powers)
165 * -- spectrum management
166 * -- user preference (e.g. iwconfig)
167 * when requested power is set, base power index must also be set. */
168 struct iwl4965_channel_power_info {
169 struct iwl4965_tx_power tpc; /* actual radio and DSP gain settings */
170 s8 power_table_index; /* actual (compenst'd) index into gain table */
171 s8 base_power_index; /* gain index for power at factory temp. */
172 s8 requested_power; /* power (dBm) requested for this chnl/rate */
175 /* current scan Tx power values to use, one for each scan rate for each
177 struct iwl4965_scan_power_info {
178 struct iwl4965_tx_power tpc; /* actual radio and DSP gain settings */
179 s8 power_table_index; /* actual (compenst'd) index into gain table */
180 s8 requested_power; /* scan pwr (dBm) requested for chnl/rate */
183 /* For fat_extension_channel */
185 HT_IE_EXT_CHANNEL_NONE = 0,
186 HT_IE_EXT_CHANNEL_ABOVE,
187 HT_IE_EXT_CHANNEL_INVALID,
188 HT_IE_EXT_CHANNEL_BELOW,
189 HT_IE_EXT_CHANNEL_MAX
193 * One for each channel, holds all channel setup data
194 * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
197 #define IWL4965_MAX_RATE (33)
199 struct iwl_channel_info {
200 struct iwl4965_channel_tgd_info tgd;
201 struct iwl4965_channel_tgh_info tgh;
202 struct iwl4965_eeprom_channel eeprom; /* EEPROM regulatory limit */
203 struct iwl4965_eeprom_channel fat_eeprom; /* EEPROM regulatory limit for
206 u8 channel; /* channel number */
207 u8 flags; /* flags copied from EEPROM */
208 s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
209 s8 curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) limit */
210 s8 min_power; /* always 0 */
211 s8 scan_power; /* (dBm) regul. eeprom, direct scans, any rate */
213 u8 group_index; /* 0-4, maps channel to group1/2/3/4/5 */
214 u8 band_index; /* 0-4, maps channel to band1/2/3/4/5 */
215 enum ieee80211_band band;
217 /* Radio/DSP gain settings for each "normal" data Tx rate.
218 * These include, in addition to RF and DSP gain, a few fields for
219 * remembering/modifying gain settings (indexes). */
220 struct iwl4965_channel_power_info power_info[IWL4965_MAX_RATE];
222 /* FAT channel info */
223 s8 fat_max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
224 s8 fat_curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) */
225 s8 fat_min_power; /* always 0 */
226 s8 fat_scan_power; /* (dBm) eeprom, direct scans, any rate */
227 u8 fat_flags; /* flags copied from EEPROM */
228 u8 fat_extension_channel; /* HT_IE_EXT_CHANNEL_* */
230 /* Radio/DSP gain settings for each scan rate, for directed scans. */
231 struct iwl4965_scan_power_info scan_pwr_info[IWL_NUM_SCAN_RATES];
234 struct iwl4965_clip_group {
235 /* maximum power level to prevent clipping for each rate, derived by
236 * us from this band's saturation power in EEPROM */
237 const s8 clip_powers[IWL_MAX_RATES];
240 #include "iwl-4965-rs.h"
242 #define IWL_TX_FIFO_AC0 0
243 #define IWL_TX_FIFO_AC1 1
244 #define IWL_TX_FIFO_AC2 2
245 #define IWL_TX_FIFO_AC3 3
246 #define IWL_TX_FIFO_HCCA_1 5
247 #define IWL_TX_FIFO_HCCA_2 6
248 #define IWL_TX_FIFO_NONE 7
250 /* Minimum number of queues. MAX_NUM is defined in hw specific files */
251 #define IWL_MIN_NUM_QUEUES 4
253 /* Power management (not Tx power) structures */
260 struct iwl4965_power_vec_entry {
261 struct iwl4965_powertable_cmd cmd;
264 #define IWL_POWER_RANGE_0 (0)
265 #define IWL_POWER_RANGE_1 (1)
267 #define IWL_POWER_MODE_CAM 0x00 /* Continuously Aware Mode, always on */
268 #define IWL_POWER_INDEX_3 0x03
269 #define IWL_POWER_INDEX_5 0x05
270 #define IWL_POWER_AC 0x06
271 #define IWL_POWER_BATTERY 0x07
272 #define IWL_POWER_LIMIT 0x07
273 #define IWL_POWER_MASK 0x0F
274 #define IWL_POWER_ENABLED 0x10
275 #define IWL_POWER_LEVEL(x) ((x) & IWL_POWER_MASK)
277 struct iwl4965_power_mgr {
279 struct iwl4965_power_vec_entry pwr_range_0[IWL_POWER_AC];
280 struct iwl4965_power_vec_entry pwr_range_1[IWL_POWER_AC];
285 #define IEEE80211_DATA_LEN 2304
286 #define IEEE80211_4ADDR_LEN 30
287 #define IEEE80211_HLEN (IEEE80211_4ADDR_LEN)
288 #define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
290 struct iwl4965_frame {
292 struct ieee80211_hdr frame;
293 struct iwl4965_tx_beacon_cmd beacon;
294 u8 raw[IEEE80211_FRAME_LEN];
297 struct list_head list;
300 #define SEQ_TO_QUEUE(x) ((x >> 8) & 0xbf)
301 #define QUEUE_TO_SEQ(x) ((x & 0xbf) << 8)
302 #define SEQ_TO_INDEX(x) ((u8)(x & 0xff))
303 #define INDEX_TO_SEQ(x) ((u8)(x & 0xff))
304 #define SEQ_HUGE_FRAME (0x4000)
305 #define SEQ_RX_FRAME __constant_cpu_to_le16(0x8000)
306 #define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
307 #define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
308 #define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
311 /* CMD_SIZE_NORMAL = 0, */
312 CMD_SIZE_HUGE = (1 << 0),
314 CMD_ASYNC = (1 << 1),
315 /* CMD_NO_SKB = 0, */
316 CMD_WANT_SKB = (1 << 2),
322 struct iwl_cmd_meta {
323 struct iwl_cmd_meta *source;
326 int (*callback)(struct iwl_priv *priv,
327 struct iwl_cmd *cmd, struct sk_buff *skb);
328 } __attribute__ ((packed)) u;
330 /* The CMD_SIZE_HUGE flag bit indicates that the command
331 * structure is stored at the end of the shared queue memory. */
334 } __attribute__ ((packed));
339 * For allocation of the command and tx queues, this establishes the overall
340 * size of the largest command we send to uCode, except for a scan command
341 * (which is relatively huge; space is allocated separately).
344 struct iwl_cmd_meta meta; /* driver data */
345 struct iwl_cmd_header hdr; /* uCode API */
347 struct iwl4965_addsta_cmd addsta;
348 struct iwl4965_led_cmd led;
353 struct iwl4965_bt_cmd bt;
354 struct iwl4965_rxon_time_cmd rxon_time;
355 struct iwl4965_powertable_cmd powertable;
356 struct iwl4965_qosparam_cmd qosparam;
357 struct iwl4965_tx_cmd tx;
358 struct iwl4965_tx_beacon_cmd tx_beacon;
359 struct iwl4965_rxon_assoc_cmd rxon_assoc;
362 } __attribute__ ((packed)) cmd;
363 } __attribute__ ((packed));
365 struct iwl_host_cmd {
368 struct iwl_cmd_meta meta;
372 #define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_cmd) - \
373 sizeof(struct iwl_cmd_meta))
376 * RX related structures and functions
378 #define RX_FREE_BUFFERS 64
379 #define RX_LOW_WATERMARK 8
381 #define SUP_RATE_11A_MAX_NUM_CHANNELS 8
382 #define SUP_RATE_11B_MAX_NUM_CHANNELS 4
383 #define SUP_RATE_11G_MAX_NUM_CHANNELS 12
386 * struct iwl4965_rx_queue - Rx queue
387 * @processed: Internal index to last handled Rx packet
388 * @read: Shared index to newest available Rx buffer
389 * @write: Shared index to oldest written Rx packet
390 * @free_count: Number of pre-allocated buffers in rx_free
391 * @rx_free: list of free SKBs for use
392 * @rx_used: List of Rx buffers with no SKB
393 * @need_update: flag to indicate we need to update read/write index
395 * NOTE: rx_free and rx_used are used as a FIFO for iwl4965_rx_mem_buffers
397 struct iwl4965_rx_queue {
400 struct iwl4965_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
401 struct iwl4965_rx_mem_buffer *queue[RX_QUEUE_SIZE];
406 struct list_head rx_free;
407 struct list_head rx_used;
412 #define IWL_SUPPORTED_RATES_IE_LEN 8
414 #define SCAN_INTERVAL 100
416 #define MAX_A_CHANNELS 252
417 #define MIN_A_CHANNELS 7
419 #define MAX_B_CHANNELS 14
420 #define MIN_B_CHANNELS 1
422 #define MAX_TID_COUNT 9
424 #define IWL_INVALID_RATE 0xFF
425 #define IWL_INVALID_VALUE -1
427 #ifdef CONFIG_IWL4965_HT
429 * struct iwl4965_ht_agg -- aggregation status while waiting for block-ack
430 * @txq_id: Tx queue used for Tx attempt
431 * @frame_count: # frames attempted by Tx command
432 * @wait_for_ba: Expect block-ack before next Tx reply
433 * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window
434 * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window
435 * @bitmap1: High order, one bit for each frame pending ACK in Tx window
436 * @rate_n_flags: Rate at which Tx was attempted
438 * If REPLY_TX indicates that aggregation was attempted, driver must wait
439 * for block ack (REPLY_COMPRESSED_BA). This struct stores tx reply info
440 * until block ack arrives.
442 struct iwl4965_ht_agg {
449 #define IWL_AGG_OFF 0
451 #define IWL_EMPTYING_HW_QUEUE_ADDBA 2
452 #define IWL_EMPTYING_HW_QUEUE_DELBA 3
456 #endif /* CONFIG_IWL4965_HT */
458 struct iwl4965_tid_data {
461 #ifdef CONFIG_IWL4965_HT
462 struct iwl4965_ht_agg agg;
463 #endif /* CONFIG_IWL4965_HT */
466 struct iwl4965_hw_key {
467 enum ieee80211_key_alg alg;
470 struct ieee80211_key_conf *conf;
474 union iwl4965_ht_rate_supp {
482 #ifdef CONFIG_IWL4965_HT
483 #define CFG_HT_RX_AMPDU_FACTOR_DEF (0x3)
484 #define CFG_HT_MPDU_DENSITY_2USEC (0x5)
485 #define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_2USEC
488 /* self configuration data */
490 u8 supported_chan_width;
493 u8 sgf; /* HT_SHORT_GI_* short guard interval */
498 /* BSS related data */
500 u8 extension_chan_offset;
503 u8 non_GF_STA_present;
505 #endif /*CONFIG_IWL4965_HT */
507 union iwl4965_qos_capabity {
509 u8 edca_count:4; /* bit 0-3 */
510 u8 q_ack:1; /* bit 4 */
511 u8 queue_request:1; /* bit 5 */
512 u8 txop_request:1; /* bit 6 */
513 u8 reserved:1; /* bit 7 */
516 u8 acvo_APSD:1; /* bit 0 */
517 u8 acvi_APSD:1; /* bit 1 */
518 u8 ac_bk_APSD:1; /* bit 2 */
519 u8 ac_be_APSD:1; /* bit 3 */
520 u8 q_ack:1; /* bit 4 */
521 u8 max_len:2; /* bit 5-6 */
522 u8 more_data_ack:1; /* bit 7 */
528 struct iwl4965_qos_info {
531 union iwl4965_qos_capabity qos_cap;
532 struct iwl4965_qosparam_cmd def_qos_parm;
535 #define STA_PS_STATUS_WAKE 0
536 #define STA_PS_STATUS_SLEEP 1
538 struct iwl4965_station_entry {
539 struct iwl4965_addsta_cmd sta;
540 struct iwl4965_tid_data tid[MAX_TID_COUNT];
543 struct iwl4965_hw_key keyinfo;
546 /* one for each uCode image (inst/data, boot/init/runtime) */
548 void *v_addr; /* access by driver */
549 dma_addr_t p_addr; /* access by card's busmaster DMA */
553 /* uCode file layout */
554 struct iwl4965_ucode {
555 __le32 ver; /* major/minor/subminor */
556 __le32 inst_size; /* bytes of runtime instructions */
557 __le32 data_size; /* bytes of runtime data */
558 __le32 init_size; /* bytes of initialization instructions */
559 __le32 init_data_size; /* bytes of initialization data */
560 __le32 boot_size; /* bytes of bootstrap instructions */
561 u8 data[0]; /* data in same order as "size" elements */
564 #define IWL_IBSS_MAC_HASH_SIZE 32
566 struct iwl4965_ibss_seq {
570 unsigned long packet_time;
571 struct list_head list;
574 struct iwl_sensitivity_ranges {
581 u16 auto_corr_min_ofdm;
582 u16 auto_corr_min_ofdm_mrc;
583 u16 auto_corr_min_ofdm_x1;
584 u16 auto_corr_min_ofdm_mrc_x1;
586 u16 auto_corr_max_ofdm;
587 u16 auto_corr_max_ofdm_mrc;
588 u16 auto_corr_max_ofdm_x1;
589 u16 auto_corr_max_ofdm_mrc_x1;
591 u16 auto_corr_max_cck;
592 u16 auto_corr_max_cck_mrc;
593 u16 auto_corr_min_cck;
594 u16 auto_corr_min_cck_mrc;
598 * struct iwl_hw_params
599 * @max_txq_num: Max # Tx queues supported
600 * @tx_cmd_len: Size of Tx command (but not including frame itself)
601 * @tx_ant_num: Number of TX antennas
602 * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
604 * @max_rxq_log: Log-base-2 of max_rxq_size
607 * @struct iwl_sensitivity_ranges: range of sensitivity values
609 struct iwl_hw_params {
622 #ifdef CONFIG_IWLWIFI_RUN_TIME_CALIB
623 const struct iwl_sensitivity_ranges *sens;
627 #define HT_SHORT_GI_20MHZ_ONLY (1 << 0)
628 #define HT_SHORT_GI_40MHZ_ONLY (1 << 1)
631 #define IWL_RX_HDR(x) ((struct iwl4965_rx_frame_hdr *)(\
632 x->u.rx_frame.stats.payload + \
633 x->u.rx_frame.stats.phy_count))
634 #define IWL_RX_END(x) ((struct iwl4965_rx_frame_end *)(\
635 IWL_RX_HDR(x)->payload + \
636 le16_to_cpu(IWL_RX_HDR(x)->len)))
637 #define IWL_RX_STATS(x) (&x->u.rx_frame.stats)
638 #define IWL_RX_DATA(x) (IWL_RX_HDR(x)->payload)
641 /******************************************************************************
643 * Functions implemented in iwl-base.c which are forward declared here
646 *****************************************************************************/
647 struct iwl4965_addsta_cmd;
648 extern int iwl4965_send_add_station(struct iwl_priv *priv,
649 struct iwl4965_addsta_cmd *sta, u8 flags);
650 extern u8 iwl4965_add_station_flags(struct iwl_priv *priv, const u8 *addr,
651 int is_ap, u8 flags, void *ht_data);
652 extern int iwl4965_is_network_packet(struct iwl_priv *priv,
653 struct ieee80211_hdr *header);
654 extern int iwl4965_power_init_handle(struct iwl_priv *priv);
655 extern void iwl4965_handle_data_packet_monitor(struct iwl_priv *priv,
656 struct iwl4965_rx_mem_buffer *rxb,
657 void *data, short len,
658 struct ieee80211_rx_status *stats,
660 extern int iwl4965_is_duplicate_packet(struct iwl_priv *priv,
661 struct ieee80211_hdr *header);
662 extern int iwl4965_rx_queue_alloc(struct iwl_priv *priv);
663 extern void iwl4965_rx_queue_reset(struct iwl_priv *priv,
664 struct iwl4965_rx_queue *rxq);
665 extern int iwl4965_calc_db_from_ratio(int sig_ratio);
666 extern int iwl4965_calc_sig_qual(int rssi_dbm, int noise_dbm);
667 extern int iwl4965_tx_queue_init(struct iwl_priv *priv,
668 struct iwl4965_tx_queue *txq, int count, u32 id);
669 extern void iwl4965_rx_replenish(void *data);
670 extern void iwl4965_tx_queue_free(struct iwl_priv *priv, struct iwl4965_tx_queue *txq);
671 extern unsigned int iwl4965_fill_beacon_frame(struct iwl_priv *priv,
672 struct ieee80211_hdr *hdr,
673 const u8 *dest, int left);
674 extern int iwl4965_rx_queue_update_write_ptr(struct iwl_priv *priv,
675 struct iwl4965_rx_queue *q);
676 extern __le16 *ieee80211_get_qos_ctrl(struct ieee80211_hdr *hdr);
677 int iwl4965_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src);
679 int iwl4965_init_geos(struct iwl_priv *priv);
680 void iwl4965_free_geos(struct iwl_priv *priv);
682 extern const u8 iwl4965_broadcast_addr[ETH_ALEN];
683 int iwl4965_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd);
686 * Currently used by iwl-3945-rs... look at restructuring so that it doesn't
687 * call this... todo... fix that.
689 extern u8 iwl4965_sync_station(struct iwl_priv *priv, int sta_id,
690 u16 tx_rate, u8 flags);
692 /******************************************************************************
694 * Functions implemented in iwl-[34]*.c which are forward declared here
695 * for use by iwl-base.c
697 * NOTE: The implementation of these functions are hardware specific
698 * which is why they are in the hardware specific files (vs. iwl-base.c)
700 * Naming convention --
701 * iwl4965_ <-- Its part of iwlwifi (should be changed to iwl4965_)
702 * iwl4965_hw_ <-- Hardware specific (implemented in iwl-XXXX.c by all HW)
703 * iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
704 * iwl4965_bg_ <-- Called from work queue context
705 * iwl4965_mac_ <-- mac80211 callback
707 ****************************************************************************/
708 extern void iwl4965_hw_rx_handler_setup(struct iwl_priv *priv);
709 extern void iwl4965_hw_setup_deferred_work(struct iwl_priv *priv);
710 extern void iwl4965_hw_cancel_deferred_work(struct iwl_priv *priv);
711 extern int iwl4965_hw_rxq_stop(struct iwl_priv *priv);
712 extern int iwl4965_hw_set_hw_params(struct iwl_priv *priv);
713 extern int iwl4965_hw_nic_init(struct iwl_priv *priv);
714 extern int iwl4965_hw_nic_stop_master(struct iwl_priv *priv);
715 extern void iwl4965_hw_txq_ctx_free(struct iwl_priv *priv);
716 extern void iwl4965_hw_txq_ctx_stop(struct iwl_priv *priv);
717 extern int iwl4965_hw_nic_reset(struct iwl_priv *priv);
718 extern int iwl4965_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv, void *tfd,
719 dma_addr_t addr, u16 len);
720 extern int iwl4965_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl4965_tx_queue *txq);
721 extern int iwl4965_hw_get_temperature(struct iwl_priv *priv);
722 extern int iwl4965_hw_tx_queue_init(struct iwl_priv *priv,
723 struct iwl4965_tx_queue *txq);
724 extern unsigned int iwl4965_hw_get_beacon_cmd(struct iwl_priv *priv,
725 struct iwl4965_frame *frame, u8 rate);
726 extern int iwl4965_hw_get_rx_read(struct iwl_priv *priv);
727 extern void iwl4965_hw_build_tx_cmd_rate(struct iwl_priv *priv,
729 struct ieee80211_tx_control *ctrl,
730 struct ieee80211_hdr *hdr,
731 int sta_id, int tx_id);
732 extern int iwl4965_hw_reg_send_txpower(struct iwl_priv *priv);
733 extern int iwl4965_hw_reg_set_txpower(struct iwl_priv *priv, s8 power);
734 extern void iwl4965_hw_rx_statistics(struct iwl_priv *priv,
735 struct iwl4965_rx_mem_buffer *rxb);
736 extern void iwl4965_disable_events(struct iwl_priv *priv);
737 extern int iwl4965_get_temperature(const struct iwl_priv *priv);
740 * iwl_find_station - Find station id for a given BSSID
741 * @bssid: MAC address of station ID to find
743 * NOTE: This should not be hardware specific but the code has
744 * not yet been merged into a single common layer for managing the
747 extern u8 iwl_find_station(struct iwl_priv *priv, const u8 *bssid);
749 extern int iwl4965_hw_channel_switch(struct iwl_priv *priv, u16 channel);
750 extern int iwl4965_tx_queue_reclaim(struct iwl_priv *priv, int txq_id, int index);
751 extern int iwl4965_queue_space(const struct iwl4965_queue *q);
754 extern void iwl4965_radio_kill_sw(struct iwl_priv *priv, int disable_radio);
756 * Forward declare iwl-4965.c functions for iwl-base.c
758 extern int iwl4965_tx_queue_update_wr_ptr(struct iwl_priv *priv,
759 struct iwl4965_tx_queue *txq,
761 extern void iwl4965_add_station(struct iwl_priv *priv, const u8 *addr,
763 extern void iwl4965_set_rxon_chain(struct iwl_priv *priv);
764 extern int iwl4965_alive_notify(struct iwl_priv *priv);
765 extern void iwl4965_update_rate_scaling(struct iwl_priv *priv, u8 mode);
766 extern void iwl4965_rf_kill_ct_config(struct iwl_priv *priv);
767 extern void iwl4965_hwrate_to_tx_control(struct iwl_priv *priv,
769 struct ieee80211_tx_control *control);
771 #ifdef CONFIG_IWL4965_HT
772 void iwl4965_init_ht_hw_capab(struct iwl_priv *priv,
773 struct ieee80211_ht_info *ht_info,
774 enum ieee80211_band band);
775 void iwl4965_set_rxon_ht(struct iwl_priv *priv,
776 struct iwl_ht_info *ht_info);
777 void iwl4965_set_ht_add_station(struct iwl_priv *priv, u8 index,
778 struct ieee80211_ht_info *sta_ht_inf);
779 int iwl4965_mac_ampdu_action(struct ieee80211_hw *hw,
780 enum ieee80211_ampdu_mlme_action action,
781 const u8 *addr, u16 tid, u16 *ssn);
782 int iwl4965_check_empty_hw_queue(struct iwl_priv *priv, int sta_id,
785 static inline void iwl4965_init_ht_hw_capab(struct iwl_priv *priv,
786 struct ieee80211_ht_info *ht_info,
787 enum ieee80211_band band) {}
789 #endif /*CONFIG_IWL4965_HT */
790 /* Structures, enum, and defines specific to the 4965 */
792 #define IWL4965_KW_SIZE 0x1000 /*4k */
800 #define IWL_CHANNEL_WIDTH_20MHZ 0
801 #define IWL_CHANNEL_WIDTH_40MHZ 1
803 #define IWL_MIMO_PS_STATIC 0
804 #define IWL_MIMO_PS_NONE 3
805 #define IWL_MIMO_PS_DYNAMIC 1
806 #define IWL_MIMO_PS_INVALID 2
808 #define IWL_OPERATION_MODE_AUTO 0
809 #define IWL_OPERATION_MODE_HT_ONLY 1
810 #define IWL_OPERATION_MODE_MIXED 2
811 #define IWL_OPERATION_MODE_20MHZ 3
813 #define IWL_EXT_CHANNEL_OFFSET_NONE 0
814 #define IWL_EXT_CHANNEL_OFFSET_ABOVE 1
815 #define IWL_EXT_CHANNEL_OFFSET_RESERVE1 2
816 #define IWL_EXT_CHANNEL_OFFSET_BELOW 3
818 #define NRG_NUM_PREV_STAT_L 20
819 #define NUM_RX_CHAINS (3)
821 #define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
823 struct iwl4965_lq_mngr {
827 u8 *next_higher_rate;
830 unsigned long stamp_last;
836 /* Sensitivity and chain noise calibration */
837 #define INTERFERENCE_DATA_AVAILABLE __constant_cpu_to_le32(1)
838 #define INITIALIZATION_VALUE 0xFFFF
839 #define CAL_NUM_OF_BEACONS 20
840 #define MAXIMUM_ALLOWED_PATHLOSS 15
842 #define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
844 #define MAX_FA_OFDM 50
845 #define MIN_FA_OFDM 5
846 #define MAX_FA_CCK 50
849 #define AUTO_CORR_STEP_OFDM 1
851 #define AUTO_CORR_STEP_CCK 3
852 #define AUTO_CORR_MAX_TH_CCK 160
855 #define NRG_STEP_CCK 2
857 #define MAX_NUMBER_CCK_NO_FA 100
859 #define AUTO_CORR_CCK_MIN_VAL_DEF (125)
864 #define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
865 #define ALL_BAND_FILTER 0xFF00
866 #define IN_BAND_FILTER 0xFF
867 #define MIN_AVERAGE_NOISE_MAX_VALUE 0xFFFFFFFF
869 enum iwl4965_false_alarm_state {
872 IWL_FA_GOOD_RANGE = 2,
875 enum iwl4965_chain_noise_state {
876 IWL_CHAIN_NOISE_ALIVE = 0, /* must be 0 */
877 IWL_CHAIN_NOISE_ACCUMULATE = 1,
878 IWL_CHAIN_NOISE_CALIBRATED = 2,
881 enum iwl4965_calib_enabled_state {
882 IWL_CALIB_DISABLED = 0, /* must be 0 */
883 IWL_CALIB_ENABLED = 1,
886 struct statistics_general_data {
887 u32 beacon_silence_rssi_a;
888 u32 beacon_silence_rssi_b;
889 u32 beacon_silence_rssi_c;
895 #ifdef CONFIG_IWLWIFI_RUN_TIME_CALIB
896 /* Sensitivity calib data */
897 struct iwl_sensitivity_data {
899 u32 auto_corr_ofdm_mrc;
900 u32 auto_corr_ofdm_x1;
901 u32 auto_corr_ofdm_mrc_x1;
903 u32 auto_corr_cck_mrc;
905 u32 last_bad_plcp_cnt_ofdm;
906 u32 last_fa_cnt_ofdm;
907 u32 last_bad_plcp_cnt_cck;
913 u8 nrg_silence_rssi[NRG_NUM_PREV_STAT_L];
918 s32 nrg_auto_corr_silence_diff;
919 u32 num_in_cck_no_fa;
923 /* Chain noise (differential Rx gain) calib data */
924 struct iwl_chain_noise_data {
933 u8 disconn_array[NUM_RX_CHAINS];
934 u8 delta_gain_code[NUM_RX_CHAINS];
937 #endif /* CONFIG_IWLWIFI_RUN_TIME_CALIB */
939 #define EEPROM_SEM_TIMEOUT 10 /* milliseconds */
940 #define EEPROM_SEM_RETRY_LIMIT 1000 /* number of attempts (not time) */
943 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
946 MEASUREMENT_READY = (1 << 0),
947 MEASUREMENT_ACTIVE = (1 << 1),
952 #define IWL_MAX_NUM_QUEUES 20 /* FIXME: do dynamic allocation */
956 /* ieee device used by generic ieee processing code */
957 struct ieee80211_hw *hw;
958 struct ieee80211_channel *ieee_channels;
959 struct ieee80211_rate *ieee_rates;
962 /* temporary frame storage list */
963 struct list_head free_frames;
966 enum ieee80211_band band;
970 void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv,
971 struct iwl4965_rx_mem_buffer *rxb);
973 struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
975 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
976 /* spectrum measurement report caching */
977 struct iwl4965_spectrum_notification measure_report;
978 u8 measurement_status;
980 /* ucode beacon time */
981 u32 ucode_beacon_time;
983 /* we allocate array of iwl4965_channel_info for NIC's valid channels.
984 * Access via channel # using indirect index array */
985 struct iwl_channel_info *channel_info; /* channel info array */
986 u8 channel_count; /* # of channels */
988 /* each calibration channel group in the EEPROM has a derived
989 * clip setting for each rate. */
990 const struct iwl4965_clip_group clip_groups[5];
992 /* thermal calibration */
993 s32 temperature; /* degrees Kelvin */
994 s32 last_temperature;
996 /* Scan related variables */
997 unsigned long last_scan_jiffies;
998 unsigned long next_scan_jiffies;
999 unsigned long scan_start;
1000 unsigned long scan_pass_start;
1001 unsigned long scan_start_tsf;
1003 int one_direct_scan;
1005 u8 direct_ssid[IW_ESSID_MAX_SIZE];
1006 struct iwl4965_scan_cmd *scan;
1009 spinlock_t lock; /* protect general shared data */
1010 spinlock_t hcmd_lock; /* protect hcmd */
1013 /* basic pci-network driver stuff */
1014 struct pci_dev *pci_dev;
1016 /* pci hardware address support */
1017 void __iomem *hw_base;
1019 /* uCode images, save to reload in case of failure */
1020 struct fw_desc ucode_code; /* runtime inst */
1021 struct fw_desc ucode_data; /* runtime data original */
1022 struct fw_desc ucode_data_backup; /* runtime data save/restore */
1023 struct fw_desc ucode_init; /* initialization inst */
1024 struct fw_desc ucode_init_data; /* initialization data */
1025 struct fw_desc ucode_boot; /* bootstrap inst */
1028 struct iwl4965_rxon_time_cmd rxon_timing;
1030 /* We declare this const so it can only be
1031 * changed via explicit cast within the
1032 * routines that actually update the physical
1034 const struct iwl4965_rxon_cmd active_rxon;
1035 struct iwl4965_rxon_cmd staging_rxon;
1037 int error_recovering;
1038 struct iwl4965_rxon_cmd recovery_rxon;
1040 /* 1st responses from initialize and runtime uCode images.
1041 * 4965's initialize alive response contains some calibration data. */
1042 struct iwl4965_init_alive_resp card_alive_init;
1043 struct iwl4965_alive_resp card_alive;
1044 #ifdef CONFIG_IWLWIFI_RFKILL
1045 struct iwl_rfkill_mngr rfkill_mngr;
1048 #ifdef CONFIG_IWLWIFI_LEDS
1049 struct iwl4965_led led[IWL_LED_TRG_MAX];
1050 unsigned long last_blink_time;
1057 u16 active_rate_basic;
1059 u8 assoc_station_added;
1060 u8 use_ant_b_for_management_frame; /* Tx antenna selection */
1061 u8 valid_antenna; /* Bit mask of antennas actually connected */
1063 #ifdef CONFIG_IWLWIFI_RUN_TIME_CALIB
1064 struct iwl_sensitivity_data sensitivity_data;
1065 struct iwl_chain_noise_data chain_noise_data;
1066 __le16 sensitivity_tbl[HD_TABLE_SIZE];
1067 #endif /*CONFIG_IWLWIFI_RUN_TIME_CALIB*/
1069 #ifdef CONFIG_IWL4965_HT
1070 struct iwl_ht_info current_ht_config;
1072 u8 last_phy_res[100];
1074 /* Rate scaling data */
1075 struct iwl4965_lq_mngr lq_mngr;
1077 /* Rate scaling data */
1078 s8 data_retry_limit;
1081 wait_queue_head_t wait_command_queue;
1083 int activity_timer_active;
1085 /* Rx and Tx DMA processing queues */
1086 struct iwl4965_rx_queue rxq;
1087 struct iwl4965_tx_queue txq[IWL_MAX_NUM_QUEUES];
1088 unsigned long txq_ctx_active_msk;
1089 struct iwl4965_kw kw; /* keep warm address */
1090 u32 scd_base_addr; /* scheduler sram base address */
1092 unsigned long status;
1094 int last_rx_rssi; /* From Rx packet statisitics */
1095 int last_rx_noise; /* From beacon statistics */
1097 /* counts mgmt, ctl, and data packets */
1098 struct traffic_stats {
1101 } tx_stats[3], rx_stats[3];
1103 struct iwl4965_power_mgr power_data;
1105 struct iwl4965_notif_statistics statistics;
1106 unsigned long last_statistics_time;
1108 /* context information */
1109 u8 essid[IW_ESSID_MAX_SIZE];
1117 u8 mac_addr[ETH_ALEN];
1119 /*station table variables */
1120 spinlock_t sta_lock;
1122 struct iwl4965_station_entry stations[IWL_STATION_COUNT];
1123 struct iwl_wep_key wep_keys[WEP_KEYS_MAX];
1126 unsigned long ucode_key_table;
1128 /* Indication if ieee80211_ops->open has been called */
1131 u8 mac80211_registered;
1133 u32 notif_missed_beacons;
1135 /* Rx'd packet timing information */
1136 u32 last_beacon_time;
1139 /* Duplicate packet detection */
1142 unsigned long last_packet_time;
1144 /* Hash table for finding stations in IBSS network */
1145 struct list_head ibss_mac_hash[IWL_IBSS_MAC_HASH_SIZE];
1148 struct iwl4965_eeprom eeprom;
1150 enum ieee80211_if_types iw_mode;
1152 struct sk_buff *ibss_beacon;
1154 /* Last Rx'd beacon timestamp */
1157 struct ieee80211_vif *vif;
1159 struct iwl_hw_params hw_params;
1160 /* driver/uCode shared Tx Byte Counts and Rx status */
1162 /* Physical Pointer to Tx Byte Counts and Rx status */
1163 dma_addr_t shared_phys;
1165 /* Current association information needed to configure the
1168 u16 assoc_capability;
1171 struct iwl4965_qos_info qos_data;
1173 struct workqueue_struct *workqueue;
1175 struct work_struct up;
1176 struct work_struct restart;
1177 struct work_struct calibrated_work;
1178 struct work_struct scan_completed;
1179 struct work_struct rx_replenish;
1180 struct work_struct rf_kill;
1181 struct work_struct abort_scan;
1182 struct work_struct update_link_led;
1183 struct work_struct auth_work;
1184 struct work_struct report_work;
1185 struct work_struct request_scan;
1186 struct work_struct beacon_update;
1188 struct tasklet_struct irq_tasklet;
1190 struct delayed_work init_alive_start;
1191 struct delayed_work alive_start;
1192 struct delayed_work activity_timer;
1193 struct delayed_work thermal_periodic;
1194 struct delayed_work gather_stats;
1195 struct delayed_work scan_check;
1196 struct delayed_work post_associate;
1198 #define IWL_DEFAULT_TX_POWER 0x0F
1199 s8 user_txpower_limit;
1200 s8 max_channel_txpower_limit;
1206 #ifdef CONFIG_IWLWIFI_DEBUG
1207 /* debugging info */
1209 atomic_t restrict_refcnt;
1210 #ifdef CONFIG_IWLWIFI_DEBUGFS
1212 struct iwl_debugfs *dbgfs;
1213 #endif /* CONFIG_IWLWIFI_DEBUGFS */
1214 #endif /* CONFIG_IWLWIFI_DEBUG */
1216 struct work_struct txpower_work;
1217 #ifdef CONFIG_IWL4965_RUN_TIME_CALIB
1218 struct work_struct sensitivity_work;
1220 struct timer_list statistics_periodic;
1223 static inline int iwl_is_associated(struct iwl_priv *priv)
1225 return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
1228 static inline int is_channel_valid(const struct iwl_channel_info *ch_info)
1230 if (ch_info == NULL)
1232 return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
1235 static inline int is_channel_narrow(const struct iwl_channel_info *ch_info)
1237 return (ch_info->flags & EEPROM_CHANNEL_NARROW) ? 1 : 0;
1240 static inline int is_channel_radar(const struct iwl_channel_info *ch_info)
1242 return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
1245 static inline u8 is_channel_a_band(const struct iwl_channel_info *ch_info)
1247 return ch_info->band == IEEE80211_BAND_5GHZ;
1250 static inline u8 is_channel_bg_band(const struct iwl_channel_info *ch_info)
1252 return ch_info->band == IEEE80211_BAND_2GHZ;
1255 static inline int is_channel_passive(const struct iwl_channel_info *ch)
1257 return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
1260 static inline int is_channel_ibss(const struct iwl_channel_info *ch)
1262 return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
1265 extern const struct iwl_channel_info *iwl_get_channel_info(
1266 const struct iwl_priv *priv, enum ieee80211_band band, u16 channel);
1268 /* Requires full declaration of iwl_priv before including */
1270 #endif /* __iwl4965_4965_h__ */