1 /******************************************************************************
3 * Copyright(c) 2003 - 2011 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 *****************************************************************************/
29 #include <linux/interrupt.h>
30 #include <linux/pci.h> /* for struct pci_device_id */
31 #include <linux/kernel.h>
32 #include <linux/leds.h>
33 #include <linux/wait.h>
35 #include <net/mac80211.h>
36 #include <net/ieee80211_radiotap.h>
46 #define IL_ERR(f, a...) dev_err(&il->pci_dev->dev, f, ## a)
47 #define IL_WARN(f, a...) dev_warn(&il->pci_dev->dev, f, ## a)
48 #define IL_INFO(f, a...) dev_info(&il->pci_dev->dev, f, ## a)
50 #define RX_QUEUE_SIZE 256
51 #define RX_QUEUE_MASK 255
52 #define RX_QUEUE_SIZE_LOG 8
55 * RX related structures and functions
57 #define RX_FREE_BUFFERS 64
58 #define RX_LOW_WATERMARK 8
60 #define U32_PAD(n) ((4-(n))&0x3)
62 /* CT-KILL constants */
63 #define CT_KILL_THRESHOLD_LEGACY 110 /* in Celsius */
65 /* Default noise level to report when noise measurement is not available.
66 * This may be because we're:
67 * 1) Not associated (4965, no beacon stats being sent to driver)
68 * 2) Scanning (noise measurement does not apply to associated channel)
69 * 3) Receiving CCK (3945 delivers noise info only for OFDM frames)
70 * Use default noise value of -127 ... this is below the range of measurable
71 * Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
72 * Also, -127 works better than 0 when averaging frames with/without
73 * noise info (e.g. averaging might be done in app); measured dBm values are
74 * always negative ... using a negative value as the default keeps all
75 * averages within an s8's (used in some apps) range of negative values. */
76 #define IL_NOISE_MEAS_NOT_AVAILABLE (-127)
79 * RTS threshold here is total size [2347] minus 4 FCS bytes
81 * a value of 0 means RTS on all data/management packets
82 * a value > max MSDU size means no RTS
83 * else RTS for data/management frames where MPDU is larger
86 #define DEFAULT_RTS_THRESHOLD 2347U
87 #define MIN_RTS_THRESHOLD 0U
88 #define MAX_RTS_THRESHOLD 2347U
89 #define MAX_MSDU_SIZE 2304U
90 #define MAX_MPDU_SIZE 2346U
91 #define DEFAULT_BEACON_INTERVAL 100U
92 #define DEFAULT_SHORT_RETRY_LIMIT 7U
93 #define DEFAULT_LONG_RETRY_LIMIT 4U
98 struct list_head list
;
101 #define rxb_addr(r) page_address(r->page)
104 struct il_device_cmd
;
107 /* only for SYNC commands, iff the reply skb is wanted */
108 struct il_host_cmd
*source
;
110 * only for ASYNC commands
111 * (which is somewhat stupid -- look at common.c for instance
112 * which duplicates a bunch of code because the callback isn't
113 * invoked for SYNC commands, if it were and its result passed
114 * through it would be simpler...)
116 void (*callback
) (struct il_priv
*il
, struct il_device_cmd
*cmd
,
117 struct il_rx_pkt
*pkt
);
119 /* The CMD_SIZE_HUGE flag bit indicates that the command
120 * structure is stored at the end of the shared queue memory. */
123 DEFINE_DMA_UNMAP_ADDR(mapping
);
124 DEFINE_DMA_UNMAP_LEN(len
);
128 * Generic queue structure
130 * Contains common data for Rx and Tx queues
133 int n_bd
; /* number of BDs in this queue */
134 int write_ptr
; /* 1-st empty entry (idx) host_w */
135 int read_ptr
; /* last used entry (idx) host_r */
136 /* use for monitoring and recovering the stuck queue */
137 dma_addr_t dma_addr
; /* physical addr for BD's */
138 int n_win
; /* safe queue win */
140 int low_mark
; /* low watermark, resume queue if free
141 * space more than this */
142 int high_mark
; /* high watermark, stop queue if free
143 * space less than this */
146 /* One for each TFD */
152 * struct il_tx_queue - Tx Queue for DMA
153 * @q: generic Rx/Tx queue descriptor
154 * @bd: base of circular buffer of TFDs
155 * @cmd: array of command/TX buffer pointers
156 * @meta: array of meta data for each command/tx buffer
157 * @dma_addr_cmd: physical address of cmd/tx buffer array
158 * @txb: array of per-TFD driver data
159 * @time_stamp: time (in jiffies) of last read_ptr change
160 * @need_update: indicates need to update read/write idx
161 * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
163 * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
164 * descriptors) and required locking structures.
166 #define TFD_TX_CMD_SLOTS 256
167 #define TFD_CMD_SLOTS 32
172 struct il_device_cmd
**cmd
;
173 struct il_cmd_meta
*meta
;
174 struct il_tx_info
*txb
;
175 unsigned long time_stamp
;
183 * EEPROM access time values:
185 * Driver initiates EEPROM read by writing byte address << 1 to CSR_EEPROM_REG.
186 * Driver then polls CSR_EEPROM_REG for CSR_EEPROM_REG_READ_VALID_MSK (0x1).
187 * When polling, wait 10 uSec between polling loops, up to a maximum 5000 uSec.
188 * Driver reads 16-bit value from bits 31-16 of CSR_EEPROM_REG.
190 #define IL_EEPROM_ACCESS_TIMEOUT 5000 /* uSec */
192 #define IL_EEPROM_SEM_TIMEOUT 10 /* microseconds */
193 #define IL_EEPROM_SEM_RETRY_LIMIT 1000 /* number of attempts (not time) */
196 * Regulatory channel usage flags in EEPROM struct il4965_eeprom_channel.flags.
198 * IBSS and/or AP operation is allowed *only* on those channels with
199 * (VALID && IBSS && ACTIVE && !RADAR). This restriction is in place because
200 * RADAR detection is not supported by the 4965 driver, but is a
201 * requirement for establishing a new network for legal operation on channels
202 * requiring RADAR detection or restricting ACTIVE scanning.
204 * NOTE: "WIDE" flag does not indicate anything about "HT40" 40 MHz channels.
205 * It only indicates that 20 MHz channel use is supported; HT40 channel
206 * usage is indicated by a separate set of regulatory flags for each
209 * NOTE: Using a channel inappropriately will result in a uCode error!
211 #define IL_NUM_TX_CALIB_GROUPS 5
213 EEPROM_CHANNEL_VALID
= (1 << 0), /* usable for this SKU/geo */
214 EEPROM_CHANNEL_IBSS
= (1 << 1), /* usable as an IBSS channel */
216 EEPROM_CHANNEL_ACTIVE
= (1 << 3), /* active scanning allowed */
217 EEPROM_CHANNEL_RADAR
= (1 << 4), /* radar detection required */
218 EEPROM_CHANNEL_WIDE
= (1 << 5), /* 20 MHz channel okay */
219 /* Bit 6 Reserved (was Narrow Channel) */
220 EEPROM_CHANNEL_DFS
= (1 << 7), /* dynamic freq selection candidate */
223 /* SKU Capabilities */
225 #define EEPROM_SKU_CAP_SW_RF_KILL_ENABLE (1 << 0)
226 #define EEPROM_SKU_CAP_HW_RF_KILL_ENABLE (1 << 1)
228 /* *regulatory* channel data format in eeprom, one for each channel.
229 * There are separate entries for HT40 (40 MHz) vs. normal (20 MHz) channels. */
230 struct il_eeprom_channel
{
231 u8 flags
; /* EEPROM_CHANNEL_* flags copied from EEPROM */
232 s8 max_power_avg
; /* max power (dBm) on this chnl, limit 31 */
236 #define EEPROM_3945_EEPROM_VERSION (0x2f)
238 /* 4965 has two radio transmitters (and 3 radio receivers) */
239 #define EEPROM_TX_POWER_TX_CHAINS (2)
241 /* 4965 has room for up to 8 sets of txpower calibration data */
242 #define EEPROM_TX_POWER_BANDS (8)
244 /* 4965 factory calibration measures txpower gain settings for
245 * each of 3 target output levels */
246 #define EEPROM_TX_POWER_MEASUREMENTS (3)
249 /* 4965 driver does not work with txpower calibration version < 5 */
250 #define EEPROM_4965_TX_POWER_VERSION (5)
251 #define EEPROM_4965_EEPROM_VERSION (0x2f)
252 #define EEPROM_4965_CALIB_VERSION_OFFSET (2*0xB6) /* 2 bytes */
253 #define EEPROM_4965_CALIB_TXPOWER_OFFSET (2*0xE8) /* 48 bytes */
254 #define EEPROM_4965_BOARD_REVISION (2*0x4F) /* 2 bytes */
255 #define EEPROM_4965_BOARD_PBA (2*0x56+1) /* 9 bytes */
258 extern const u8 il_eeprom_band_1
[14];
261 * factory calibration data for one txpower level, on one channel,
262 * measured on one of the 2 tx chains (radio transmitter and associated
263 * antenna). EEPROM contains:
265 * 1) Temperature (degrees Celsius) of device when measurement was made.
267 * 2) Gain table idx used to achieve the target measurement power.
268 * This refers to the "well-known" gain tables (see 4965.h).
270 * 3) Actual measured output power, in half-dBm ("34" = 17 dBm).
272 * 4) RF power amplifier detector level measurement (not used).
274 struct il_eeprom_calib_measure
{
275 u8 temperature
; /* Device temperature (Celsius) */
276 u8 gain_idx
; /* Index into gain table */
277 u8 actual_pow
; /* Measured RF output power, half-dBm */
278 s8 pa_det
; /* Power amp detector level (not used) */
282 * measurement set for one channel. EEPROM contains:
284 * 1) Channel number measured
286 * 2) Measurements for each of 3 power levels for each of 2 radio transmitters
287 * (a.k.a. "tx chains") (6 measurements altogether)
289 struct il_eeprom_calib_ch_info
{
291 struct il_eeprom_calib_measure
292 measurements
[EEPROM_TX_POWER_TX_CHAINS
]
293 [EEPROM_TX_POWER_MEASUREMENTS
];
297 * txpower subband info.
299 * For each frequency subband, EEPROM contains the following:
301 * 1) First and last channels within range of the subband. "0" values
302 * indicate that this sample set is not being used.
304 * 2) Sample measurement sets for 2 channels close to the range endpoints.
306 struct il_eeprom_calib_subband_info
{
307 u8 ch_from
; /* channel number of lowest channel in subband */
308 u8 ch_to
; /* channel number of highest channel in subband */
309 struct il_eeprom_calib_ch_info ch1
;
310 struct il_eeprom_calib_ch_info ch2
;
314 * txpower calibration info. EEPROM contains:
316 * 1) Factory-measured saturation power levels (maximum levels at which
317 * tx power amplifier can output a signal without too much distortion).
318 * There is one level for 2.4 GHz band and one for 5 GHz band. These
319 * values apply to all channels within each of the bands.
321 * 2) Factory-measured power supply voltage level. This is assumed to be
322 * constant (i.e. same value applies to all channels/bands) while the
323 * factory measurements are being made.
325 * 3) Up to 8 sets of factory-measured txpower calibration values.
326 * These are for different frequency ranges, since txpower gain
327 * characteristics of the analog radio circuitry vary with frequency.
329 * Not all sets need to be filled with data;
330 * struct il_eeprom_calib_subband_info contains range of channels
331 * (0 if unused) for each set of data.
333 struct il_eeprom_calib_info
{
334 u8 saturation_power24
; /* half-dBm (e.g. "34" = 17 dBm) */
335 u8 saturation_power52
; /* half-dBm */
336 __le16 voltage
; /* signed */
337 struct il_eeprom_calib_subband_info band_info
[EEPROM_TX_POWER_BANDS
];
341 #define EEPROM_DEVICE_ID (2*0x08) /* 2 bytes */
342 #define EEPROM_MAC_ADDRESS (2*0x15) /* 6 bytes */
343 #define EEPROM_BOARD_REVISION (2*0x35) /* 2 bytes */
344 #define EEPROM_BOARD_PBA_NUMBER (2*0x3B+1) /* 9 bytes */
345 #define EEPROM_VERSION (2*0x44) /* 2 bytes */
346 #define EEPROM_SKU_CAP (2*0x45) /* 2 bytes */
347 #define EEPROM_OEM_MODE (2*0x46) /* 2 bytes */
348 #define EEPROM_WOWLAN_MODE (2*0x47) /* 2 bytes */
349 #define EEPROM_RADIO_CONFIG (2*0x48) /* 2 bytes */
350 #define EEPROM_NUM_MAC_ADDRESS (2*0x4C) /* 2 bytes */
352 /* The following masks are to be applied on EEPROM_RADIO_CONFIG */
353 #define EEPROM_RF_CFG_TYPE_MSK(x) (x & 0x3) /* bits 0-1 */
354 #define EEPROM_RF_CFG_STEP_MSK(x) ((x >> 2) & 0x3) /* bits 2-3 */
355 #define EEPROM_RF_CFG_DASH_MSK(x) ((x >> 4) & 0x3) /* bits 4-5 */
356 #define EEPROM_RF_CFG_PNUM_MSK(x) ((x >> 6) & 0x3) /* bits 6-7 */
357 #define EEPROM_RF_CFG_TX_ANT_MSK(x) ((x >> 8) & 0xF) /* bits 8-11 */
358 #define EEPROM_RF_CFG_RX_ANT_MSK(x) ((x >> 12) & 0xF) /* bits 12-15 */
360 #define EEPROM_3945_RF_CFG_TYPE_MAX 0x0
361 #define EEPROM_4965_RF_CFG_TYPE_MAX 0x1
364 * Per-channel regulatory data.
366 * Each channel that *might* be supported by iwl has a fixed location
367 * in EEPROM containing EEPROM_CHANNEL_* usage flags (LSB) and max regulatory
370 * Entries immediately below are for 20 MHz channel width. HT40 (40 MHz)
371 * channels (only for 4965, not supported by 3945) appear later in the EEPROM.
373 * 2.4 GHz channels 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
375 #define EEPROM_REGULATORY_SKU_ID (2*0x60) /* 4 bytes */
376 #define EEPROM_REGULATORY_BAND_1 (2*0x62) /* 2 bytes */
377 #define EEPROM_REGULATORY_BAND_1_CHANNELS (2*0x63) /* 28 bytes */
380 * 4.9 GHz channels 183, 184, 185, 187, 188, 189, 192, 196,
381 * 5.0 GHz channels 7, 8, 11, 12, 16
382 * (4915-5080MHz) (none of these is ever supported)
384 #define EEPROM_REGULATORY_BAND_2 (2*0x71) /* 2 bytes */
385 #define EEPROM_REGULATORY_BAND_2_CHANNELS (2*0x72) /* 26 bytes */
388 * 5.2 GHz channels 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64
391 #define EEPROM_REGULATORY_BAND_3 (2*0x7F) /* 2 bytes */
392 #define EEPROM_REGULATORY_BAND_3_CHANNELS (2*0x80) /* 24 bytes */
395 * 5.5 GHz channels 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140
398 #define EEPROM_REGULATORY_BAND_4 (2*0x8C) /* 2 bytes */
399 #define EEPROM_REGULATORY_BAND_4_CHANNELS (2*0x8D) /* 22 bytes */
402 * 5.7 GHz channels 145, 149, 153, 157, 161, 165
405 #define EEPROM_REGULATORY_BAND_5 (2*0x98) /* 2 bytes */
406 #define EEPROM_REGULATORY_BAND_5_CHANNELS (2*0x99) /* 12 bytes */
409 * 2.4 GHz HT40 channels 1 (5), 2 (6), 3 (7), 4 (8), 5 (9), 6 (10), 7 (11)
411 * The channel listed is the center of the lower 20 MHz half of the channel.
412 * The overall center frequency is actually 2 channels (10 MHz) above that,
413 * and the upper half of each HT40 channel is centered 4 channels (20 MHz) away
414 * from the lower half; e.g. the upper half of HT40 channel 1 is channel 5,
415 * and the overall HT40 channel width centers on channel 3.
417 * NOTE: The RXON command uses 20 MHz channel numbers to specify the
418 * control channel to which to tune. RXON also specifies whether the
419 * control channel is the upper or lower half of a HT40 channel.
421 * NOTE: 4965 does not support HT40 channels on 2.4 GHz.
423 #define EEPROM_4965_REGULATORY_BAND_24_HT40_CHANNELS (2*0xA0) /* 14 bytes */
426 * 5.2 GHz HT40 channels 36 (40), 44 (48), 52 (56), 60 (64),
427 * 100 (104), 108 (112), 116 (120), 124 (128), 132 (136), 149 (153), 157 (161)
429 #define EEPROM_4965_REGULATORY_BAND_52_HT40_CHANNELS (2*0xA8) /* 22 bytes */
431 #define EEPROM_REGULATORY_BAND_NO_HT40 (0)
433 struct il_eeprom_ops
{
434 const u32 regulatory_bands
[7];
435 int (*acquire_semaphore
) (struct il_priv
*il
);
436 void (*release_semaphore
) (struct il_priv
*il
);
439 int il_eeprom_init(struct il_priv
*il
);
440 void il_eeprom_free(struct il_priv
*il
);
441 const u8
*il_eeprom_query_addr(const struct il_priv
*il
, size_t offset
);
442 u16
il_eeprom_query16(const struct il_priv
*il
, size_t offset
);
443 int il_init_channel_map(struct il_priv
*il
);
444 void il_free_channel_map(struct il_priv
*il
);
445 const struct il_channel_info
*il_get_channel_info(const struct il_priv
*il
,
446 enum ieee80211_band band
,
449 #define IL_NUM_SCAN_RATES (2)
451 struct il4965_channel_tgd_info
{
456 struct il4965_channel_tgh_info
{
460 #define IL4965_MAX_RATE (33)
462 struct il3945_clip_group
{
463 /* maximum power level to prevent clipping for each rate, derived by
464 * us from this band's saturation power in EEPROM */
465 const s8 clip_powers
[IL_MAX_RATES
];
468 /* current Tx power values to use, one for each rate for each channel.
469 * requested power is limited by:
470 * -- regulatory EEPROM limits for this channel
471 * -- hardware capabilities (clip-powers)
472 * -- spectrum management
473 * -- user preference (e.g. iwconfig)
474 * when requested power is set, base power idx must also be set. */
475 struct il3945_channel_power_info
{
476 struct il3945_tx_power tpc
; /* actual radio and DSP gain settings */
477 s8 power_table_idx
; /* actual (compenst'd) idx into gain table */
478 s8 base_power_idx
; /* gain idx for power at factory temp. */
479 s8 requested_power
; /* power (dBm) requested for this chnl/rate */
482 /* current scan Tx power values to use, one for each scan rate for each
484 struct il3945_scan_power_info
{
485 struct il3945_tx_power tpc
; /* actual radio and DSP gain settings */
486 s8 power_table_idx
; /* actual (compenst'd) idx into gain table */
487 s8 requested_power
; /* scan pwr (dBm) requested for chnl/rate */
491 * One for each channel, holds all channel setup data
492 * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
495 struct il_channel_info
{
496 struct il4965_channel_tgd_info tgd
;
497 struct il4965_channel_tgh_info tgh
;
498 struct il_eeprom_channel eeprom
; /* EEPROM regulatory limit */
499 struct il_eeprom_channel ht40_eeprom
; /* EEPROM regulatory limit for
502 u8 channel
; /* channel number */
503 u8 flags
; /* flags copied from EEPROM */
504 s8 max_power_avg
; /* (dBm) regul. eeprom, normal Tx, any rate */
505 s8 curr_txpow
; /* (dBm) regulatory/spectrum/user (not h/w) limit */
506 s8 min_power
; /* always 0 */
507 s8 scan_power
; /* (dBm) regul. eeprom, direct scans, any rate */
509 u8 group_idx
; /* 0-4, maps channel to group1/2/3/4/5 */
510 u8 band_idx
; /* 0-4, maps channel to band1/2/3/4/5 */
511 enum ieee80211_band band
;
513 /* HT40 channel info */
514 s8 ht40_max_power_avg
; /* (dBm) regul. eeprom, normal Tx, any rate */
515 u8 ht40_flags
; /* flags copied from EEPROM */
516 u8 ht40_extension_channel
; /* HT_IE_EXT_CHANNEL_* */
518 /* Radio/DSP gain settings for each "normal" data Tx rate.
519 * These include, in addition to RF and DSP gain, a few fields for
520 * remembering/modifying gain settings (idxes). */
521 struct il3945_channel_power_info power_info
[IL4965_MAX_RATE
];
523 /* Radio/DSP gain settings for each scan rate, for directed scans. */
524 struct il3945_scan_power_info scan_pwr_info
[IL_NUM_SCAN_RATES
];
527 #define IL_TX_FIFO_BK 0 /* shared */
528 #define IL_TX_FIFO_BE 1
529 #define IL_TX_FIFO_VI 2 /* shared */
530 #define IL_TX_FIFO_VO 3
531 #define IL_TX_FIFO_UNUSED -1
533 /* Minimum number of queues. MAX_NUM is defined in hw specific files.
534 * Set the minimum to accommodate the 4 standard TX queues, 1 command
535 * queue, 2 (unused) HCCA queues, and 4 HT queues (one for each AC) */
536 #define IL_MIN_NUM_QUEUES 10
538 #define IL_DEFAULT_CMD_QUEUE_NUM 4
540 #define IEEE80211_DATA_LEN 2304
541 #define IEEE80211_4ADDR_LEN 30
542 #define IEEE80211_HLEN (IEEE80211_4ADDR_LEN)
543 #define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
547 struct ieee80211_hdr frame
;
548 struct il_tx_beacon_cmd beacon
;
549 u8 raw
[IEEE80211_FRAME_LEN
];
552 struct list_head list
;
555 #define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
556 #define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
557 #define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
563 CMD_SIZE_HUGE
= (1 << 0),
564 CMD_ASYNC
= (1 << 1),
565 CMD_WANT_SKB
= (1 << 2),
566 CMD_MAPPED
= (1 << 3),
569 #define DEF_CMD_PAYLOAD_SIZE 320
572 * struct il_device_cmd
574 * For allocation of the command and tx queues, this establishes the overall
575 * size of the largest command we send to uCode, except for a scan command
576 * (which is relatively huge; space is allocated separately).
578 struct il_device_cmd
{
579 struct il_cmd_header hdr
; /* uCode API */
586 u8 payload
[DEF_CMD_PAYLOAD_SIZE
];
590 #define TFD_MAX_PAYLOAD_SIZE (sizeof(struct il_device_cmd))
594 unsigned long reply_page
;
595 void (*callback
) (struct il_priv
*il
, struct il_device_cmd
*cmd
,
596 struct il_rx_pkt
*pkt
);
602 #define SUP_RATE_11A_MAX_NUM_CHANNELS 8
603 #define SUP_RATE_11B_MAX_NUM_CHANNELS 4
604 #define SUP_RATE_11G_MAX_NUM_CHANNELS 12
607 * struct il_rx_queue - Rx queue
608 * @bd: driver's pointer to buffer of receive buffer descriptors (rbd)
609 * @bd_dma: bus address of buffer of receive buffer descriptors (rbd)
610 * @read: Shared idx to newest available Rx buffer
611 * @write: Shared idx to oldest written Rx packet
612 * @free_count: Number of pre-allocated buffers in rx_free
613 * @rx_free: list of free SKBs for use
614 * @rx_used: List of Rx buffers with no SKB
615 * @need_update: flag to indicate we need to update read/write idx
616 * @rb_stts: driver's pointer to receive buffer status
617 * @rb_stts_dma: bus address of receive buffer status
619 * NOTE: rx_free and rx_used are used as a FIFO for il_rx_bufs
624 struct il_rx_buf pool
[RX_QUEUE_SIZE
+ RX_FREE_BUFFERS
];
625 struct il_rx_buf
*queue
[RX_QUEUE_SIZE
];
630 struct list_head rx_free
;
631 struct list_head rx_used
;
633 struct il_rb_status
*rb_stts
;
634 dma_addr_t rb_stts_dma
;
638 #define IL_SUPPORTED_RATES_IE_LEN 8
640 #define MAX_TID_COUNT 9
642 #define IL_INVALID_RATE 0xFF
643 #define IL_INVALID_VALUE -1
646 * struct il_ht_agg -- aggregation status while waiting for block-ack
647 * @txq_id: Tx queue used for Tx attempt
648 * @frame_count: # frames attempted by Tx command
649 * @wait_for_ba: Expect block-ack before next Tx reply
650 * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx win
651 * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx win
652 * @bitmap1: High order, one bit for each frame pending ACK in Tx win
653 * @rate_n_flags: Rate at which Tx was attempted
655 * If C_TX indicates that aggregation was attempted, driver must wait
656 * for block ack (N_COMPRESSED_BA). This struct stores tx reply info
657 * until block ack arrives.
668 #define IL_EMPTYING_HW_QUEUE_ADDBA 2
669 #define IL_EMPTYING_HW_QUEUE_DELBA 3
674 u16 seq_number
; /* 4965 only */
676 struct il_ht_agg agg
;
686 union il_ht_rate_supp
{
694 #define CFG_HT_RX_AMPDU_FACTOR_8K (0x0)
695 #define CFG_HT_RX_AMPDU_FACTOR_16K (0x1)
696 #define CFG_HT_RX_AMPDU_FACTOR_32K (0x2)
697 #define CFG_HT_RX_AMPDU_FACTOR_64K (0x3)
698 #define CFG_HT_RX_AMPDU_FACTOR_DEF CFG_HT_RX_AMPDU_FACTOR_64K
699 #define CFG_HT_RX_AMPDU_FACTOR_MAX CFG_HT_RX_AMPDU_FACTOR_64K
700 #define CFG_HT_RX_AMPDU_FACTOR_MIN CFG_HT_RX_AMPDU_FACTOR_8K
703 * Maximal MPDU density for TX aggregation
709 #define CFG_HT_MPDU_DENSITY_2USEC (0x4)
710 #define CFG_HT_MPDU_DENSITY_4USEC (0x5)
711 #define CFG_HT_MPDU_DENSITY_8USEC (0x6)
712 #define CFG_HT_MPDU_DENSITY_16USEC (0x7)
713 #define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_4USEC
714 #define CFG_HT_MPDU_DENSITY_MAX CFG_HT_MPDU_DENSITY_16USEC
715 #define CFG_HT_MPDU_DENSITY_MIN (0x1)
717 struct il_ht_config
{
718 bool single_chain_sufficient
;
719 enum ieee80211_smps_mode smps
; /* current smps mode */
725 struct il_qosparam_cmd def_qos_parm
;
729 * Structure should be accessed with sta_lock held. When station addition
730 * is in progress (IL_STA_UCODE_INPROGRESS) it is possible to access only
731 * the commands (il_addsta_cmd and il_link_quality_cmd) without
734 struct il_station_entry
{
735 struct il_addsta_cmd sta
;
736 struct il_tid_data tid
[MAX_TID_COUNT
];
738 struct il_hw_key keyinfo
;
739 struct il_link_quality_cmd
*lq
;
742 struct il_station_priv_common
{
747 * struct il_vif_priv - driver's ilate per-interface information
749 * When mac80211 allocates a virtual interface, it can allocate
750 * space for us to put data into.
753 u8 ibss_bssid_sta_id
;
756 /* one for each uCode image (inst/data, boot/init/runtime) */
758 void *v_addr
; /* access by driver */
759 dma_addr_t p_addr
; /* access by card's busmaster DMA */
763 /* uCode file layout */
764 struct il_ucode_header
{
765 __le32 ver
; /* major/minor/API/serial */
767 __le32 inst_size
; /* bytes of runtime code */
768 __le32 data_size
; /* bytes of runtime data */
769 __le32 init_size
; /* bytes of init code */
770 __le32 init_data_size
; /* bytes of init data */
771 __le32 boot_size
; /* bytes of bootstrap code */
772 u8 data
[0]; /* in same order as sizes */
776 struct il4965_ibss_seq
{
780 unsigned long packet_time
;
781 struct list_head list
;
784 struct il_sensitivity_ranges
{
791 u16 auto_corr_min_ofdm
;
792 u16 auto_corr_min_ofdm_mrc
;
793 u16 auto_corr_min_ofdm_x1
;
794 u16 auto_corr_min_ofdm_mrc_x1
;
796 u16 auto_corr_max_ofdm
;
797 u16 auto_corr_max_ofdm_mrc
;
798 u16 auto_corr_max_ofdm_x1
;
799 u16 auto_corr_max_ofdm_mrc_x1
;
801 u16 auto_corr_max_cck
;
802 u16 auto_corr_max_cck_mrc
;
803 u16 auto_corr_min_cck
;
804 u16 auto_corr_min_cck_mrc
;
806 u16 barker_corr_th_min
;
807 u16 barker_corr_th_min_mrc
;
811 #define KELVIN_TO_CELSIUS(x) ((x)-273)
812 #define CELSIUS_TO_KELVIN(x) ((x)+273)
815 * struct il_hw_params
816 * @bcast_id: f/w broadcast station ID
817 * @max_txq_num: Max # Tx queues supported
818 * @dma_chnl_num: Number of Tx DMA/FIFO channels
819 * @scd_bc_tbls_size: size of scheduler byte count tables
820 * @tfd_size: TFD size
821 * @tx/rx_chains_num: Number of TX/RX chains
822 * @valid_tx/rx_ant: usable antennas
823 * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
824 * @max_rxq_log: Log-base-2 of max_rxq_size
825 * @rx_page_order: Rx buffer page order
826 * @rx_wrt_ptr_reg: FH{39}_RSCSR_CHNL0_WPTR
828 * @ht40_channel: is 40MHz width possible in band 2.4
829 * BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ)
830 * @sw_crypto: 0 for hw, 1 for sw
831 * @max_xxx_size: for ucode uses
832 * @ct_kill_threshold: temperature threshold
833 * @beacon_time_tsf_bits: number of valid tsf bits for beacon time
834 * @struct il_sensitivity_ranges: range of sensitivity values
836 struct il_hw_params
{
840 u16 scd_bc_tbls_size
;
852 u8 max_beacon_itrvl
; /* in 1024 ms */
856 u32 ct_kill_threshold
; /* value in hw-dependent units */
857 u16 beacon_time_tsf_bits
;
858 const struct il_sensitivity_ranges
*sens
;
861 /******************************************************************************
863 * Functions implemented in core module which are forward declared here
864 * for use by iwl-[4-5].c
866 * NOTE: The implementation of these functions are not hardware specific
867 * which is why they are in the core module files.
869 * Naming convention --
870 * il_ <-- Is part of iwlwifi
871 * iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
872 * il4965_bg_ <-- Called from work queue context
873 * il4965_mac_ <-- mac80211 callback
875 ****************************************************************************/
876 extern void il4965_update_chain_flags(struct il_priv
*il
);
877 extern const u8 il_bcast_addr
[ETH_ALEN
];
878 extern int il_queue_space(const struct il_queue
*q
);
880 il_queue_used(const struct il_queue
*q
, int i
)
882 return q
->write_ptr
>= q
->read_ptr
? (i
>= q
->read_ptr
&&
883 i
< q
->write_ptr
) : !(i
<
891 il_get_cmd_idx(struct il_queue
*q
, u32 idx
, int is_huge
)
894 * This is for init calibration result and scan command which
895 * required buffer > TFD_MAX_PAYLOAD_SIZE,
896 * the big buffer at end of command array
899 return q
->n_win
; /* must be power of 2 */
901 /* Otherwise, use normal size buffers */
902 return idx
& (q
->n_win
- 1);
911 #define IL_OPERATION_MODE_AUTO 0
912 #define IL_OPERATION_MODE_HT_ONLY 1
913 #define IL_OPERATION_MODE_MIXED 2
914 #define IL_OPERATION_MODE_20MHZ 3
916 #define IL_TX_CRC_SIZE 4
917 #define IL_TX_DELIMITER_SIZE 4
919 #define TX_POWER_IL_ILLEGAL_VOLTAGE -10000
921 /* Sensitivity and chain noise calibration */
922 #define INITIALIZATION_VALUE 0xFFFF
923 #define IL4965_CAL_NUM_BEACONS 20
924 #define IL_CAL_NUM_BEACONS 16
925 #define MAXIMUM_ALLOWED_PATHLOSS 15
927 #define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
929 #define MAX_FA_OFDM 50
930 #define MIN_FA_OFDM 5
931 #define MAX_FA_CCK 50
934 #define AUTO_CORR_STEP_OFDM 1
936 #define AUTO_CORR_STEP_CCK 3
937 #define AUTO_CORR_MAX_TH_CCK 160
940 #define NRG_STEP_CCK 2
942 #define MAX_NUMBER_CCK_NO_FA 100
944 #define AUTO_CORR_CCK_MIN_VAL_DEF (125)
949 #define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
950 #define ALL_BAND_FILTER 0xFF00
951 #define IN_BAND_FILTER 0xFF
952 #define MIN_AVERAGE_NOISE_MAX_VALUE 0xFFFFFFFF
954 #define NRG_NUM_PREV_STAT_L 20
955 #define NUM_RX_CHAINS 3
957 enum il4965_false_alarm_state
{
960 IL_FA_GOOD_RANGE
= 2,
963 enum il4965_chain_noise_state
{
964 IL_CHAIN_NOISE_ALIVE
= 0, /* must be 0 */
965 IL_CHAIN_NOISE_ACCUMULATE
,
966 IL_CHAIN_NOISE_CALIBRATED
,
970 enum il4965_calib_enabled_state
{
971 IL_CALIB_DISABLED
= 0, /* must be 0 */
972 IL_CALIB_ENABLED
= 1,
977 * defines the order in which results of initial calibrations
978 * should be sent to the runtime uCode
984 /* Opaque calibration results */
985 struct il_calib_result
{
996 /* Sensitivity calib data */
997 struct il_sensitivity_data
{
999 u32 auto_corr_ofdm_mrc
;
1000 u32 auto_corr_ofdm_x1
;
1001 u32 auto_corr_ofdm_mrc_x1
;
1003 u32 auto_corr_cck_mrc
;
1005 u32 last_bad_plcp_cnt_ofdm
;
1006 u32 last_fa_cnt_ofdm
;
1007 u32 last_bad_plcp_cnt_cck
;
1008 u32 last_fa_cnt_cck
;
1013 u8 nrg_silence_rssi
[NRG_NUM_PREV_STAT_L
];
1014 u32 nrg_silence_ref
;
1016 u32 nrg_silence_idx
;
1018 s32 nrg_auto_corr_silence_diff
;
1019 u32 num_in_cck_no_fa
;
1022 u16 barker_corr_th_min
;
1023 u16 barker_corr_th_min_mrc
;
1027 /* Chain noise (differential Rx gain) calib data */
1028 struct il_chain_noise_data
{
1037 u8 disconn_array
[NUM_RX_CHAINS
];
1038 u8 delta_gain_code
[NUM_RX_CHAINS
];
1043 #define EEPROM_SEM_TIMEOUT 10 /* milliseconds */
1044 #define EEPROM_SEM_RETRY_LIMIT 1000 /* number of attempts (not time) */
1046 #define IL_TRAFFIC_ENTRIES (256)
1047 #define IL_TRAFFIC_ENTRY_SIZE (64)
1050 MEASUREMENT_READY
= (1 << 0),
1051 MEASUREMENT_ACTIVE
= (1 << 1),
1054 /* interrupt stats */
1065 u32 handlers
[IL_CN_MAX
];
1070 /* management stats */
1071 enum il_mgmt_stats
{
1072 MANAGEMENT_ASSOC_REQ
= 0,
1073 MANAGEMENT_ASSOC_RESP
,
1074 MANAGEMENT_REASSOC_REQ
,
1075 MANAGEMENT_REASSOC_RESP
,
1076 MANAGEMENT_PROBE_REQ
,
1077 MANAGEMENT_PROBE_RESP
,
1080 MANAGEMENT_DISASSOC
,
1087 enum il_ctrl_stats
{
1088 CONTROL_BACK_REQ
= 0,
1099 struct traffic_stats
{
1100 #ifdef CONFIG_IWLEGACY_DEBUGFS
1101 u32 mgmt
[MANAGEMENT_MAX
];
1102 u32 ctrl
[CONTROL_MAX
];
1109 * host interrupt timeout value
1110 * used with setting interrupt coalescing timer
1111 * the CSR_INT_COALESCING is an 8 bit register in 32-usec unit
1113 * default interrupt coalescing timer is 64 x 32 = 2048 usecs
1114 * default interrupt coalescing calibration timer is 16 x 32 = 512 usecs
1116 #define IL_HOST_INT_TIMEOUT_MAX (0xFF)
1117 #define IL_HOST_INT_TIMEOUT_DEF (0x40)
1118 #define IL_HOST_INT_TIMEOUT_MIN (0x0)
1119 #define IL_HOST_INT_CALIB_TIMEOUT_MAX (0xFF)
1120 #define IL_HOST_INT_CALIB_TIMEOUT_DEF (0x10)
1121 #define IL_HOST_INT_CALIB_TIMEOUT_MIN (0x0)
1123 #define IL_DELAY_NEXT_FORCE_FW_RELOAD (HZ*5)
1125 /* TX queue watchdog timeouts in mSecs */
1126 #define IL_DEF_WD_TIMEOUT (2000)
1127 #define IL_LONG_WD_TIMEOUT (10000)
1128 #define IL_MAX_WD_TIMEOUT (120000)
1130 struct il_force_reset
{
1131 int reset_request_count
;
1132 int reset_success_count
;
1133 int reset_reject_count
;
1134 unsigned long reset_duration
;
1135 unsigned long last_force_reset_jiffies
;
1138 /* extend beacon time format bit shifting */
1141 * bits 31:24 - extended
1142 * bits 23:0 - interval
1144 #define IL3945_EXT_BEACON_TIME_POS 24
1147 * bits 31:22 - extended
1148 * bits 21:0 - interval
1150 #define IL4965_EXT_BEACON_TIME_POS 22
1152 struct il_rxon_context
{
1153 struct ieee80211_vif
*vif
;
1156 struct il_power_mgr
{
1157 struct il_powertable_cmd sleep_cmd
;
1158 struct il_powertable_cmd sleep_cmd_next
;
1159 int debug_sleep_level_override
;
1165 /* ieee device used by generic ieee processing code */
1166 struct ieee80211_hw
*hw
;
1167 struct ieee80211_channel
*ieee_channels
;
1168 struct ieee80211_rate
*ieee_rates
;
1170 const struct il_ops
*ops
;
1172 /* temporary frame storage list */
1173 struct list_head free_frames
;
1176 enum ieee80211_band band
;
1179 void (*handlers
[IL_CN_MAX
]) (struct il_priv
*il
,
1180 struct il_rx_buf
*rxb
);
1182 struct ieee80211_supported_band bands
[IEEE80211_NUM_BANDS
];
1184 /* spectrum measurement report caching */
1185 struct il_spectrum_notification measure_report
;
1186 u8 measurement_status
;
1188 /* ucode beacon time */
1189 u32 ucode_beacon_time
;
1190 int missed_beacon_threshold
;
1192 /* track IBSS manager (last beacon) status */
1196 struct il_force_reset force_reset
;
1198 /* we allocate array of il_channel_info for NIC's valid channels.
1199 * Access via channel # using indirect idx array */
1200 struct il_channel_info
*channel_info
; /* channel info array */
1201 u8 channel_count
; /* # of channels */
1203 /* thermal calibration */
1204 s32 temperature
; /* degrees Kelvin */
1205 s32 last_temperature
;
1207 /* init calibration results */
1208 struct il_calib_result calib_results
[IL_CALIB_MAX
];
1210 /* Scan related variables */
1211 unsigned long scan_start
;
1212 unsigned long scan_start_tsf
;
1214 enum ieee80211_band scan_band
;
1215 struct cfg80211_scan_request
*scan_request
;
1216 struct ieee80211_vif
*scan_vif
;
1217 u8 scan_tx_ant
[IEEE80211_NUM_BANDS
];
1221 spinlock_t lock
; /* protect general shared data */
1222 spinlock_t hcmd_lock
; /* protect hcmd */
1223 spinlock_t reg_lock
; /* protect hw register access */
1226 /* basic pci-network driver stuff */
1227 struct pci_dev
*pci_dev
;
1229 /* pci hardware address support */
1230 void __iomem
*hw_base
;
1235 /* command queue number */
1238 /* max number of station keys */
1241 /* EEPROM MAC addresses */
1242 struct mac_address addresses
[1];
1244 /* uCode images, save to reload in case of failure */
1245 int fw_idx
; /* firmware we're trying to load */
1246 u32 ucode_ver
; /* version of ucode, copy of
1248 struct fw_desc ucode_code
; /* runtime inst */
1249 struct fw_desc ucode_data
; /* runtime data original */
1250 struct fw_desc ucode_data_backup
; /* runtime data save/restore */
1251 struct fw_desc ucode_init
; /* initialization inst */
1252 struct fw_desc ucode_init_data
; /* initialization data */
1253 struct fw_desc ucode_boot
; /* bootstrap inst */
1254 enum ucode_type ucode_type
;
1255 u8 ucode_write_complete
; /* the image write is complete */
1256 char firmware_name
[25];
1258 struct ieee80211_vif
*vif
;
1260 struct il_qos_info qos_data
;
1265 bool non_gf_sta_present
;
1267 u8 extension_chan_offset
;
1271 * We declare this const so it can only be
1272 * changed via explicit cast within the
1273 * routines that actually update the physical
1276 const struct il_rxon_cmd active
;
1277 struct il_rxon_cmd staging
;
1279 struct il_rxon_time_cmd timing
;
1281 __le16 switch_channel
;
1283 /* 1st responses from initialize and runtime uCode images.
1284 * _4965's initialize alive response contains some calibration data. */
1285 struct il_init_alive_resp card_alive_init
;
1286 struct il_alive_resp card_alive
;
1291 struct il_sensitivity_data sensitivity_data
;
1292 struct il_chain_noise_data chain_noise_data
;
1293 __le16 sensitivity_tbl
[HD_TBL_SIZE
];
1295 struct il_ht_config current_ht_config
;
1297 /* Rate scaling data */
1300 wait_queue_head_t wait_command_queue
;
1302 int activity_timer_active
;
1304 /* Rx and Tx DMA processing queues */
1305 struct il_rx_queue rxq
;
1306 struct il_tx_queue
*txq
;
1307 unsigned long txq_ctx_active_msk
;
1308 struct il_dma_ptr kw
; /* keep warm address */
1309 struct il_dma_ptr scd_bc_tbls
;
1311 u32 scd_base_addr
; /* scheduler sram base address */
1313 unsigned long status
;
1315 /* counts mgmt, ctl, and data packets */
1316 struct traffic_stats tx_stats
;
1317 struct traffic_stats rx_stats
;
1319 /* counts interrupts */
1320 struct isr_stats isr_stats
;
1322 struct il_power_mgr power_data
;
1324 /* context information */
1325 u8 bssid
[ETH_ALEN
]; /* used only on 3945 but filled by core */
1327 /* station table variables */
1329 /* Note: if lock and sta_lock are needed, lock must be acquired first */
1330 spinlock_t sta_lock
;
1332 struct il_station_entry stations
[IL_STATION_COUNT
];
1333 unsigned long ucode_key_table
;
1335 /* queue refcounts */
1336 #define IL_MAX_HW_QUEUES 32
1337 unsigned long queue_stopped
[BITS_TO_LONGS(IL_MAX_HW_QUEUES
)];
1339 atomic_t queue_stop_count
[4];
1341 /* Indication if ieee80211_ops->open has been called */
1344 u8 mac80211_registered
;
1346 /* eeprom -- this is in the card's little endian byte order */
1348 struct il_eeprom_calib_info
*calib_info
;
1350 enum nl80211_iftype iw_mode
;
1352 /* Last Rx'd beacon timestamp */
1356 #if defined(CONFIG_IWL3945) || defined(CONFIG_IWL3945_MODULE)
1359 dma_addr_t shared_phys
;
1361 struct delayed_work thermal_periodic
;
1362 struct delayed_work rfkill_poll
;
1364 struct il3945_notif_stats stats
;
1365 #ifdef CONFIG_IWLEGACY_DEBUGFS
1366 struct il3945_notif_stats accum_stats
;
1367 struct il3945_notif_stats delta_stats
;
1368 struct il3945_notif_stats max_delta
;
1372 int last_rx_rssi
; /* From Rx packet stats */
1374 /* Rx'd packet timing information */
1375 u32 last_beacon_time
;
1379 * each calibration channel group in the
1380 * EEPROM has a derived clip setting for
1383 const struct il3945_clip_group clip_groups
[5];
1387 #if defined(CONFIG_IWL4965) || defined(CONFIG_IWL4965_MODULE)
1389 struct il_rx_phy_res last_phy_res
;
1390 bool last_phy_res_valid
;
1392 struct completion firmware_loading_complete
;
1395 * chain noise reset and gain commands are the
1396 * two extra calibration commands follows the standard
1397 * phy calibration commands
1399 u8 phy_calib_chain_noise_reset_cmd
;
1400 u8 phy_calib_chain_noise_gain_cmd
;
1402 u8 key_mapping_keys
;
1403 struct il_wep_key wep_keys
[WEP_KEYS_MAX
];
1405 struct il_notif_stats stats
;
1406 #ifdef CONFIG_IWLEGACY_DEBUGFS
1407 struct il_notif_stats accum_stats
;
1408 struct il_notif_stats delta_stats
;
1409 struct il_notif_stats max_delta
;
1416 struct il_hw_params hw_params
;
1420 struct workqueue_struct
*workqueue
;
1422 struct work_struct restart
;
1423 struct work_struct scan_completed
;
1424 struct work_struct rx_replenish
;
1425 struct work_struct abort_scan
;
1427 bool beacon_enabled
;
1428 struct sk_buff
*beacon_skb
;
1430 struct work_struct tx_flush
;
1432 struct tasklet_struct irq_tasklet
;
1434 struct delayed_work init_alive_start
;
1435 struct delayed_work alive_start
;
1436 struct delayed_work scan_check
;
1439 s8 tx_power_user_lmt
;
1440 s8 tx_power_device_lmt
;
1443 #ifdef CONFIG_IWLEGACY_DEBUG
1444 /* debugging info */
1445 u32 debug_level
; /* per device debugging will override global
1446 il_debug_level if set */
1447 #endif /* CONFIG_IWLEGACY_DEBUG */
1448 #ifdef CONFIG_IWLEGACY_DEBUGFS
1454 struct dentry
*debugfs_dir
;
1455 u32 dbgfs_sram_offset
, dbgfs_sram_len
;
1457 #endif /* CONFIG_IWLEGACY_DEBUGFS */
1459 struct work_struct txpower_work
;
1460 u32 disable_sens_cal
;
1461 u32 disable_chain_noise_cal
;
1462 u32 disable_tx_power_cal
;
1463 struct work_struct run_time_calib_work
;
1464 struct timer_list stats_periodic
;
1465 struct timer_list watchdog
;
1468 struct led_classdev led
;
1469 unsigned long blink_on
, blink_off
;
1470 bool led_registered
;
1474 il_txq_ctx_activate(struct il_priv
*il
, int txq_id
)
1476 set_bit(txq_id
, &il
->txq_ctx_active_msk
);
1480 il_txq_ctx_deactivate(struct il_priv
*il
, int txq_id
)
1482 clear_bit(txq_id
, &il
->txq_ctx_active_msk
);
1485 static inline struct ieee80211_hdr
*
1486 il_tx_queue_get_hdr(struct il_priv
*il
, int txq_id
, int idx
)
1488 if (il
->txq
[txq_id
].txb
[idx
].skb
)
1489 return (struct ieee80211_hdr
*)il
->txq
[txq_id
].txb
[idx
].skb
->
1495 il_is_associated(struct il_priv
*il
)
1497 return (il
->active
.filter_flags
& RXON_FILTER_ASSOC_MSK
) ? 1 : 0;
1501 il_is_any_associated(struct il_priv
*il
)
1503 return il_is_associated(il
);
1507 il_is_channel_valid(const struct il_channel_info
*ch_info
)
1509 if (ch_info
== NULL
)
1511 return (ch_info
->flags
& EEPROM_CHANNEL_VALID
) ? 1 : 0;
1515 il_is_channel_radar(const struct il_channel_info
*ch_info
)
1517 return (ch_info
->flags
& EEPROM_CHANNEL_RADAR
) ? 1 : 0;
1521 il_is_channel_a_band(const struct il_channel_info
*ch_info
)
1523 return ch_info
->band
== IEEE80211_BAND_5GHZ
;
1527 il_is_channel_passive(const struct il_channel_info
*ch
)
1529 return (!(ch
->flags
& EEPROM_CHANNEL_ACTIVE
)) ? 1 : 0;
1533 il_is_channel_ibss(const struct il_channel_info
*ch
)
1535 return (ch
->flags
& EEPROM_CHANNEL_IBSS
) ? 1 : 0;
1539 __il_free_pages(struct il_priv
*il
, struct page
*page
)
1541 __free_pages(page
, il
->hw_params
.rx_page_order
);
1542 il
->alloc_rxb_page
--;
1546 il_free_pages(struct il_priv
*il
, unsigned long page
)
1548 free_pages(page
, il
->hw_params
.rx_page_order
);
1549 il
->alloc_rxb_page
--;
1552 #define IWLWIFI_VERSION "in-tree:"
1553 #define DRV_COPYRIGHT "Copyright(c) 2003-2011 Intel Corporation"
1554 #define DRV_AUTHOR "<ilw@linux.intel.com>"
1556 #define IL_PCI_DEVICE(dev, subdev, cfg) \
1557 .vendor = PCI_VENDOR_ID_INTEL, .device = (dev), \
1558 .subvendor = PCI_ANY_ID, .subdevice = (subdev), \
1559 .driver_data = (kernel_ulong_t)&(cfg)
1561 #define TIME_UNIT 1024
1563 #define IL_SKU_G 0x1
1564 #define IL_SKU_A 0x2
1565 #define IL_SKU_N 0x8
1567 #define IL_CMD(x) case x: return #x
1569 /* Size of one Rx buffer in host DRAM */
1570 #define IL_RX_BUF_SIZE_3K (3 * 1000) /* 3945 only */
1571 #define IL_RX_BUF_SIZE_4K (4 * 1024)
1572 #define IL_RX_BUF_SIZE_8K (8 * 1024)
1574 struct il_hcmd_ops
{
1575 int (*rxon_assoc
) (struct il_priv
*il
);
1576 int (*commit_rxon
) (struct il_priv
*il
);
1577 void (*set_rxon_chain
) (struct il_priv
*il
);
1580 struct il_hcmd_utils_ops
{
1581 u16(*get_hcmd_size
) (u8 cmd_id
, u16 len
);
1582 u16(*build_addsta_hcmd
) (const struct il_addsta_cmd
*cmd
, u8
*data
);
1583 int (*request_scan
) (struct il_priv
*il
, struct ieee80211_vif
*vif
);
1584 void (*post_scan
) (struct il_priv
*il
);
1588 int (*init
) (struct il_priv
*il
);
1589 void (*config
) (struct il_priv
*il
);
1592 #ifdef CONFIG_IWLEGACY_DEBUGFS
1593 struct il_debugfs_ops
{
1594 ssize_t(*rx_stats_read
) (struct file
*file
, char __user
*user_buf
,
1595 size_t count
, loff_t
*ppos
);
1596 ssize_t(*tx_stats_read
) (struct file
*file
, char __user
*user_buf
,
1597 size_t count
, loff_t
*ppos
);
1598 ssize_t(*general_stats_read
) (struct file
*file
,
1599 char __user
*user_buf
, size_t count
,
1604 struct il_temp_ops
{
1605 void (*temperature
) (struct il_priv
*il
);
1609 /* set hw dependent parameters */
1610 int (*set_hw_params
) (struct il_priv
*il
);
1612 void (*txq_update_byte_cnt_tbl
) (struct il_priv
*il
,
1613 struct il_tx_queue
*txq
,
1615 int (*txq_attach_buf_to_tfd
) (struct il_priv
*il
,
1616 struct il_tx_queue
*txq
, dma_addr_t addr
,
1617 u16 len
, u8 reset
, u8 pad
);
1618 void (*txq_free_tfd
) (struct il_priv
*il
, struct il_tx_queue
*txq
);
1619 int (*txq_init
) (struct il_priv
*il
, struct il_tx_queue
*txq
);
1620 /* setup Rx handler */
1621 void (*handler_setup
) (struct il_priv
*il
);
1622 /* alive notification after init uCode load */
1623 void (*init_alive_start
) (struct il_priv
*il
);
1624 /* check validity of rtc data address */
1625 int (*is_valid_rtc_data_addr
) (u32 addr
);
1626 /* 1st ucode load */
1627 int (*load_ucode
) (struct il_priv
*il
);
1629 void (*dump_nic_error_log
) (struct il_priv
*il
);
1630 int (*dump_fh
) (struct il_priv
*il
, char **buf
, bool display
);
1631 int (*set_channel_switch
) (struct il_priv
*il
,
1632 struct ieee80211_channel_switch
*ch_switch
);
1633 /* power management */
1634 struct il_apm_ops apm_ops
;
1637 int (*send_tx_power
) (struct il_priv
*il
);
1638 void (*update_chain_flags
) (struct il_priv
*il
);
1640 /* eeprom operations */
1641 struct il_eeprom_ops eeprom_ops
;
1644 struct il_temp_ops temp_ops
;
1646 #ifdef CONFIG_IWLEGACY_DEBUGFS
1647 struct il_debugfs_ops debugfs_ops
;
1653 int (*cmd
) (struct il_priv
*il
, struct il_led_cmd
*led_cmd
);
1656 struct il_legacy_ops
{
1657 void (*post_associate
) (struct il_priv
*il
);
1658 void (*config_ap
) (struct il_priv
*il
);
1659 /* station management */
1660 int (*update_bcast_stations
) (struct il_priv
*il
);
1661 int (*manage_ibss_station
) (struct il_priv
*il
,
1662 struct ieee80211_vif
*vif
, bool add
);
1666 const struct il_lib_ops
*lib
;
1667 const struct il_hcmd_ops
*hcmd
;
1668 const struct il_hcmd_utils_ops
*utils
;
1669 const struct il_led_ops
*led
;
1670 const struct il_nic_ops
*nic
;
1671 const struct il_legacy_ops
*legacy
;
1674 struct il_mod_params
{
1675 int sw_crypto
; /* def: 0 = using hardware encryption */
1676 int disable_hw_scan
; /* def: 0 = use h/w scan */
1677 int num_of_queues
; /* def: HW dependent */
1678 int disable_11n
; /* def: 0 = 11n capabilities enabled */
1679 int amsdu_size_8K
; /* def: 1 = enable 8K amsdu size */
1680 int antenna
; /* def: 0 = both antennas (use diversity) */
1681 int restart_fw
; /* def: 1 = restart firmware */
1685 * @led_compensation: compensate on the led on/off time per HW according
1686 * to the deviation to achieve the desired led frequency.
1687 * The detail algorithm is described in common.c
1688 * @chain_noise_num_beacons: number of beacons used to compute chain noise
1689 * @wd_timeout: TX queues watchdog timeout
1690 * @temperature_kelvin: temperature report by uCode in kelvin
1691 * @ucode_tracing: support ucode continuous tracing
1692 * @sensitivity_calib_by_driver: driver has the capability to perform
1693 * sensitivity calibration operation
1694 * @chain_noise_calib_by_driver: driver has the capability to perform
1695 * chain noise calibration operation
1697 struct il_base_params
{
1699 int num_of_queues
; /* def: HW dependent */
1700 int num_of_ampdu_queues
; /* def: HW dependent */
1701 /* for il_apm_init() */
1706 u16 led_compensation
;
1707 int chain_noise_num_beacons
;
1708 unsigned int wd_timeout
;
1709 bool temperature_kelvin
;
1710 const bool ucode_tracing
;
1711 const bool sensitivity_calib_by_driver
;
1712 const bool chain_noise_calib_by_driver
;
1715 #define IL_LED_SOLID 11
1716 #define IL_DEF_LED_INTRVL cpu_to_le32(1000)
1718 #define IL_LED_ACTIVITY (0<<1)
1719 #define IL_LED_LINK (1<<1)
1723 * IL_LED_DEFAULT: use device default
1724 * IL_LED_RF_STATE: turn LED on/off based on RF state
1727 * IL_LED_BLINK: adjust led blink rate based on blink table
1735 void il_leds_init(struct il_priv
*il
);
1736 void il_leds_exit(struct il_priv
*il
);
1740 * @fw_name_pre: Firmware filename prefix. The api version and extension
1741 * (.ucode) will be added to filename before loading from disk. The
1742 * filename is constructed as fw_name_pre<api>.ucode.
1743 * @ucode_api_max: Highest version of uCode API supported by driver.
1744 * @ucode_api_min: Lowest version of uCode API supported by driver.
1745 * @scan_antennas: available antenna for scan operation
1746 * @led_mode: 0=blinking, 1=On(RF On)/Off(RF Off)
1748 * We enable the driver to be backward compatible wrt API version. The
1749 * driver specifies which APIs it supports (with @ucode_api_max being the
1750 * highest and @ucode_api_min the lowest). Firmware will only be loaded if
1751 * it has a supported API version. The firmware's API version will be
1752 * stored in @il_priv, enabling the driver to make runtime changes based
1753 * on firmware version used.
1756 * if (IL_UCODE_API(il->ucode_ver) >= 2) {
1757 * Driver interacts with Firmware API version >= 2.
1759 * Driver interacts with Firmware API version 1.
1762 * The ideal usage of this infrastructure is to treat a new ucode API
1763 * release as a new hardware revision. That is, through utilizing the
1764 * il_hcmd_utils_ops etc. we accommodate different command structures
1765 * and flows between hardware versions as well as their API
1770 /* params specific to an individual device within a device family */
1772 const char *fw_name_pre
;
1773 const unsigned int ucode_api_max
;
1774 const unsigned int ucode_api_min
;
1779 u16 eeprom_calib_ver
;
1780 /* module based parameters which can be set from modprobe cmd */
1781 const struct il_mod_params
*mod_params
;
1782 /* params not likely to change within a device family */
1783 struct il_base_params
*base_params
;
1784 /* params likely to change within a device family */
1785 u8 scan_rx_antennas
[IEEE80211_NUM_BANDS
];
1786 enum il_led_mode led_mode
;
1789 /***************************
1791 ***************************/
1793 int il_mac_conf_tx(struct ieee80211_hw
*hw
, struct ieee80211_vif
*vif
,
1794 u16 queue
, const struct ieee80211_tx_queue_params
*params
);
1795 int il_mac_tx_last_beacon(struct ieee80211_hw
*hw
);
1797 void il_set_rxon_hwcrypto(struct il_priv
*il
, int hw_decrypt
);
1798 int il_check_rxon_cmd(struct il_priv
*il
);
1799 int il_full_rxon_required(struct il_priv
*il
);
1800 int il_set_rxon_channel(struct il_priv
*il
, struct ieee80211_channel
*ch
);
1801 void il_set_flags_for_band(struct il_priv
*il
, enum ieee80211_band band
,
1802 struct ieee80211_vif
*vif
);
1803 u8
il_get_single_channel_number(struct il_priv
*il
, enum ieee80211_band band
);
1804 void il_set_rxon_ht(struct il_priv
*il
, struct il_ht_config
*ht_conf
);
1805 bool il_is_ht40_tx_allowed(struct il_priv
*il
,
1806 struct ieee80211_sta_ht_cap
*ht_cap
);
1807 void il_connection_init_rx_config(struct il_priv
*il
);
1808 void il_set_rate(struct il_priv
*il
);
1809 int il_set_decrypted_flag(struct il_priv
*il
, struct ieee80211_hdr
*hdr
,
1810 u32 decrypt_res
, struct ieee80211_rx_status
*stats
);
1811 void il_irq_handle_error(struct il_priv
*il
);
1812 int il_mac_add_interface(struct ieee80211_hw
*hw
, struct ieee80211_vif
*vif
);
1813 void il_mac_remove_interface(struct ieee80211_hw
*hw
,
1814 struct ieee80211_vif
*vif
);
1815 int il_mac_change_interface(struct ieee80211_hw
*hw
, struct ieee80211_vif
*vif
,
1816 enum nl80211_iftype newtype
, bool newp2p
);
1817 int il_alloc_txq_mem(struct il_priv
*il
);
1818 void il_txq_mem(struct il_priv
*il
);
1820 #ifdef CONFIG_IWLEGACY_DEBUGFS
1821 int il_alloc_traffic_mem(struct il_priv
*il
);
1822 void il_free_traffic_mem(struct il_priv
*il
);
1823 void il_reset_traffic_log(struct il_priv
*il
);
1824 void il_dbg_log_tx_data_frame(struct il_priv
*il
, u16 length
,
1825 struct ieee80211_hdr
*header
);
1826 void il_dbg_log_rx_data_frame(struct il_priv
*il
, u16 length
,
1827 struct ieee80211_hdr
*header
);
1828 const char *il_get_mgmt_string(int cmd
);
1829 const char *il_get_ctrl_string(int cmd
);
1830 void il_clear_traffic_stats(struct il_priv
*il
);
1831 void il_update_stats(struct il_priv
*il
, bool is_tx
, __le16 fc
, u16 len
);
1834 il_alloc_traffic_mem(struct il_priv
*il
)
1840 il_free_traffic_mem(struct il_priv
*il
)
1845 il_reset_traffic_log(struct il_priv
*il
)
1850 il_dbg_log_tx_data_frame(struct il_priv
*il
, u16 length
,
1851 struct ieee80211_hdr
*header
)
1856 il_dbg_log_rx_data_frame(struct il_priv
*il
, u16 length
,
1857 struct ieee80211_hdr
*header
)
1862 il_update_stats(struct il_priv
*il
, bool is_tx
, __le16 fc
, u16 len
)
1866 /*****************************************************
1868 * **************************************************/
1869 void il_hdl_pm_sleep(struct il_priv
*il
, struct il_rx_buf
*rxb
);
1870 void il_hdl_pm_debug_stats(struct il_priv
*il
, struct il_rx_buf
*rxb
);
1871 void il_hdl_error(struct il_priv
*il
, struct il_rx_buf
*rxb
);
1873 /*****************************************************
1875 ******************************************************/
1876 void il_cmd_queue_unmap(struct il_priv
*il
);
1877 void il_cmd_queue_free(struct il_priv
*il
);
1878 int il_rx_queue_alloc(struct il_priv
*il
);
1879 void il_rx_queue_update_write_ptr(struct il_priv
*il
, struct il_rx_queue
*q
);
1880 int il_rx_queue_space(const struct il_rx_queue
*q
);
1881 void il_tx_cmd_complete(struct il_priv
*il
, struct il_rx_buf
*rxb
);
1883 void il_hdl_spectrum_measurement(struct il_priv
*il
, struct il_rx_buf
*rxb
);
1884 void il_recover_from_stats(struct il_priv
*il
, struct il_rx_pkt
*pkt
);
1885 void il_chswitch_done(struct il_priv
*il
, bool is_success
);
1886 void il_hdl_csa(struct il_priv
*il
, struct il_rx_buf
*rxb
);
1890 /*****************************************************
1892 ******************************************************/
1893 void il_txq_update_write_ptr(struct il_priv
*il
, struct il_tx_queue
*txq
);
1894 int il_tx_queue_init(struct il_priv
*il
, struct il_tx_queue
*txq
, int slots_num
,
1896 void il_tx_queue_reset(struct il_priv
*il
, struct il_tx_queue
*txq
,
1897 int slots_num
, u32 txq_id
);
1898 void il_tx_queue_unmap(struct il_priv
*il
, int txq_id
);
1899 void il_tx_queue_free(struct il_priv
*il
, int txq_id
);
1900 void il_setup_watchdog(struct il_priv
*il
);
1901 /*****************************************************
1903 ****************************************************/
1904 int il_set_tx_power(struct il_priv
*il
, s8 tx_power
, bool force
);
1906 /*******************************************************************************
1908 ******************************************************************************/
1910 u8
il_get_lowest_plcp(struct il_priv
*il
);
1912 /*******************************************************************************
1914 ******************************************************************************/
1915 void il_init_scan_params(struct il_priv
*il
);
1916 int il_scan_cancel(struct il_priv
*il
);
1917 int il_scan_cancel_timeout(struct il_priv
*il
, unsigned long ms
);
1918 void il_force_scan_end(struct il_priv
*il
);
1919 int il_mac_hw_scan(struct ieee80211_hw
*hw
, struct ieee80211_vif
*vif
,
1920 struct cfg80211_scan_request
*req
);
1921 void il_internal_short_hw_scan(struct il_priv
*il
);
1922 int il_force_reset(struct il_priv
*il
, bool external
);
1923 u16
il_fill_probe_req(struct il_priv
*il
, struct ieee80211_mgmt
*frame
,
1924 const u8
*ta
, const u8
*ie
, int ie_len
, int left
);
1925 void il_setup_rx_scan_handlers(struct il_priv
*il
);
1926 u16
il_get_active_dwell_time(struct il_priv
*il
, enum ieee80211_band band
,
1928 u16
il_get_passive_dwell_time(struct il_priv
*il
, enum ieee80211_band band
,
1929 struct ieee80211_vif
*vif
);
1930 void il_setup_scan_deferred_work(struct il_priv
*il
);
1931 void il_cancel_scan_deferred_work(struct il_priv
*il
);
1933 /* For faster active scanning, scan will move to the next channel if fewer than
1934 * PLCP_QUIET_THRESH packets are heard on this channel within
1935 * ACTIVE_QUIET_TIME after sending probe request. This shortens the dwell
1936 * time if it's a quiet channel (nothing responded to our probe, and there's
1937 * no other traffic).
1938 * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */
1939 #define IL_ACTIVE_QUIET_TIME cpu_to_le16(10) /* msec */
1940 #define IL_PLCP_QUIET_THRESH cpu_to_le16(1) /* packets */
1942 #define IL_SCAN_CHECK_WATCHDOG (HZ * 7)
1944 /*****************************************************
1945 * S e n d i n g H o s t C o m m a n d s *
1946 *****************************************************/
1948 const char *il_get_cmd_string(u8 cmd
);
1949 int __must_check
il_send_cmd_sync(struct il_priv
*il
, struct il_host_cmd
*cmd
);
1950 int il_send_cmd(struct il_priv
*il
, struct il_host_cmd
*cmd
);
1951 int __must_check
il_send_cmd_pdu(struct il_priv
*il
, u8 id
, u16 len
,
1953 int il_send_cmd_pdu_async(struct il_priv
*il
, u8 id
, u16 len
, const void *data
,
1954 void (*callback
) (struct il_priv
*il
,
1955 struct il_device_cmd
*cmd
,
1956 struct il_rx_pkt
*pkt
));
1958 int il_enqueue_hcmd(struct il_priv
*il
, struct il_host_cmd
*cmd
);
1960 /*****************************************************
1962 *****************************************************/
1965 il_pcie_link_ctl(struct il_priv
*il
)
1969 pos
= pci_pcie_cap(il
->pci_dev
);
1970 pci_read_config_word(il
->pci_dev
, pos
+ PCI_EXP_LNKCTL
, &pci_lnk_ctl
);
1974 void il_bg_watchdog(unsigned long data
);
1975 u32
il_usecs_to_beacons(struct il_priv
*il
, u32 usec
, u32 beacon_interval
);
1976 __le32
il_add_beacon_time(struct il_priv
*il
, u32 base
, u32 addon
,
1977 u32 beacon_interval
);
1980 int il_pci_suspend(struct device
*device
);
1981 int il_pci_resume(struct device
*device
);
1982 extern const struct dev_pm_ops il_pm_ops
;
1984 #define IL_LEGACY_PM_OPS (&il_pm_ops)
1986 #else /* !CONFIG_PM */
1988 #define IL_LEGACY_PM_OPS NULL
1990 #endif /* !CONFIG_PM */
1992 /*****************************************************
1993 * Error Handling Debugging
1994 ******************************************************/
1995 void il4965_dump_nic_error_log(struct il_priv
*il
);
1996 #ifdef CONFIG_IWLEGACY_DEBUG
1997 void il_print_rx_config_cmd(struct il_priv
*il
);
2000 il_print_rx_config_cmd(struct il_priv
*il
)
2005 void il_clear_isr_stats(struct il_priv
*il
);
2007 /*****************************************************
2009 ******************************************************/
2010 int il_init_geos(struct il_priv
*il
);
2011 void il_free_geos(struct il_priv
*il
);
2013 /*************** DRIVER STATUS FUNCTIONS *****/
2015 #define S_HCMD_ACTIVE 0 /* host command in progress */
2016 /* 1 is unused (used to be S_HCMD_SYNC_ACTIVE) */
2017 #define S_INT_ENABLED 2
2018 #define S_RF_KILL_HW 3
2023 #define S_TEMPERATURE 8
2024 #define S_GEO_CONFIGURED 9
2025 #define S_EXIT_PENDING 10
2027 #define S_SCANNING 13
2028 #define S_SCAN_ABORTING 14
2029 #define S_SCAN_HW 15
2030 #define S_POWER_PMI 16
2031 #define S_FW_ERROR 17
2032 #define S_CHANNEL_SWITCH_PENDING 18
2035 il_is_ready(struct il_priv
*il
)
2037 /* The adapter is 'ready' if READY and GEO_CONFIGURED bits are
2038 * set but EXIT_PENDING is not */
2039 return test_bit(S_READY
, &il
->status
) &&
2040 test_bit(S_GEO_CONFIGURED
, &il
->status
) &&
2041 !test_bit(S_EXIT_PENDING
, &il
->status
);
2045 il_is_alive(struct il_priv
*il
)
2047 return test_bit(S_ALIVE
, &il
->status
);
2051 il_is_init(struct il_priv
*il
)
2053 return test_bit(S_INIT
, &il
->status
);
2057 il_is_rfkill_hw(struct il_priv
*il
)
2059 return test_bit(S_RF_KILL_HW
, &il
->status
);
2063 il_is_rfkill(struct il_priv
*il
)
2065 return il_is_rfkill_hw(il
);
2069 il_is_ctkill(struct il_priv
*il
)
2071 return test_bit(S_CT_KILL
, &il
->status
);
2075 il_is_ready_rf(struct il_priv
*il
)
2078 if (il_is_rfkill(il
))
2081 return il_is_ready(il
);
2084 extern void il_send_bt_config(struct il_priv
*il
);
2085 extern int il_send_stats_request(struct il_priv
*il
, u8 flags
, bool clear
);
2086 void il_apm_stop(struct il_priv
*il
);
2087 int il_apm_init(struct il_priv
*il
);
2089 int il_send_rxon_timing(struct il_priv
*il
);
2092 il_send_rxon_assoc(struct il_priv
*il
)
2094 return il
->ops
->hcmd
->rxon_assoc(il
);
2098 il_commit_rxon(struct il_priv
*il
)
2100 return il
->ops
->hcmd
->commit_rxon(il
);
2103 static inline const struct ieee80211_supported_band
*
2104 il_get_hw_mode(struct il_priv
*il
, enum ieee80211_band band
)
2106 return il
->hw
->wiphy
->bands
[band
];
2109 /* mac80211 handlers */
2110 int il_mac_config(struct ieee80211_hw
*hw
, u32 changed
);
2111 void il_mac_reset_tsf(struct ieee80211_hw
*hw
, struct ieee80211_vif
*vif
);
2112 void il_mac_bss_info_changed(struct ieee80211_hw
*hw
, struct ieee80211_vif
*vif
,
2113 struct ieee80211_bss_conf
*bss_conf
, u32 changes
);
2114 void il_tx_cmd_protection(struct il_priv
*il
, struct ieee80211_tx_info
*info
,
2115 __le16 fc
, __le32
*tx_flags
);
2117 irqreturn_t
il_isr(int irq
, void *data
);
2119 extern void il_set_bit(struct il_priv
*p
, u32 r
, u32 m
);
2120 extern void il_clear_bit(struct il_priv
*p
, u32 r
, u32 m
);
2121 extern int _il_grab_nic_access(struct il_priv
*il
);
2122 extern int _il_poll_bit(struct il_priv
*il
, u32 addr
, u32 bits
, u32 mask
, int timeout
);
2123 extern int il_poll_bit(struct il_priv
*il
, u32 addr
, u32 mask
, int timeout
);
2124 extern u32
il_rd_prph(struct il_priv
*il
, u32 reg
);
2125 extern void il_wr_prph(struct il_priv
*il
, u32 addr
, u32 val
);
2126 extern u32
il_read_targ_mem(struct il_priv
*il
, u32 addr
);
2127 extern void il_write_targ_mem(struct il_priv
*il
, u32 addr
, u32 val
);
2130 _il_write8(struct il_priv
*il
, u32 ofs
, u8 val
)
2132 iowrite8(val
, il
->hw_base
+ ofs
);
2134 #define il_write8(il, ofs, val) _il_write8(il, ofs, val)
2137 _il_wr(struct il_priv
*il
, u32 ofs
, u32 val
)
2139 iowrite32(val
, il
->hw_base
+ ofs
);
2143 _il_rd(struct il_priv
*il
, u32 ofs
)
2145 return ioread32(il
->hw_base
+ ofs
);
2149 _il_clear_bit(struct il_priv
*il
, u32 reg
, u32 mask
)
2151 _il_wr(il
, reg
, _il_rd(il
, reg
) & ~mask
);
2155 _il_set_bit(struct il_priv
*il
, u32 reg
, u32 mask
)
2157 _il_wr(il
, reg
, _il_rd(il
, reg
) | mask
);
2161 _il_release_nic_access(struct il_priv
*il
)
2163 _il_clear_bit(il
, CSR_GP_CNTRL
, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
);
2167 il_rd(struct il_priv
*il
, u32 reg
)
2170 unsigned long reg_flags
;
2172 spin_lock_irqsave(&il
->reg_lock
, reg_flags
);
2173 _il_grab_nic_access(il
);
2174 value
= _il_rd(il
, reg
);
2175 _il_release_nic_access(il
);
2176 spin_unlock_irqrestore(&il
->reg_lock
, reg_flags
);
2181 il_wr(struct il_priv
*il
, u32 reg
, u32 value
)
2183 unsigned long reg_flags
;
2185 spin_lock_irqsave(&il
->reg_lock
, reg_flags
);
2186 if (!_il_grab_nic_access(il
)) {
2187 _il_wr(il
, reg
, value
);
2188 _il_release_nic_access(il
);
2190 spin_unlock_irqrestore(&il
->reg_lock
, reg_flags
);
2194 _il_rd_prph(struct il_priv
*il
, u32 reg
)
2196 _il_wr(il
, HBUS_TARG_PRPH_RADDR
, reg
| (3 << 24));
2198 return _il_rd(il
, HBUS_TARG_PRPH_RDAT
);
2202 _il_wr_prph(struct il_priv
*il
, u32 addr
, u32 val
)
2204 _il_wr(il
, HBUS_TARG_PRPH_WADDR
, ((addr
& 0x0000FFFF) | (3 << 24)));
2206 _il_wr(il
, HBUS_TARG_PRPH_WDAT
, val
);
2210 il_set_bits_prph(struct il_priv
*il
, u32 reg
, u32 mask
)
2212 unsigned long reg_flags
;
2214 spin_lock_irqsave(&il
->reg_lock
, reg_flags
);
2215 _il_grab_nic_access(il
);
2216 _il_wr_prph(il
, reg
, (_il_rd_prph(il
, reg
) | mask
));
2217 _il_release_nic_access(il
);
2218 spin_unlock_irqrestore(&il
->reg_lock
, reg_flags
);
2222 il_set_bits_mask_prph(struct il_priv
*il
, u32 reg
, u32 bits
, u32 mask
)
2224 unsigned long reg_flags
;
2226 spin_lock_irqsave(&il
->reg_lock
, reg_flags
);
2227 _il_grab_nic_access(il
);
2228 _il_wr_prph(il
, reg
, ((_il_rd_prph(il
, reg
) & mask
) | bits
));
2229 _il_release_nic_access(il
);
2230 spin_unlock_irqrestore(&il
->reg_lock
, reg_flags
);
2234 il_clear_bits_prph(struct il_priv
*il
, u32 reg
, u32 mask
)
2236 unsigned long reg_flags
;
2239 spin_lock_irqsave(&il
->reg_lock
, reg_flags
);
2240 _il_grab_nic_access(il
);
2241 val
= _il_rd_prph(il
, reg
);
2242 _il_wr_prph(il
, reg
, (val
& ~mask
));
2243 _il_release_nic_access(il
);
2244 spin_unlock_irqrestore(&il
->reg_lock
, reg_flags
);
2247 #define HW_KEY_DYNAMIC 0
2248 #define HW_KEY_DEFAULT 1
2250 #define IL_STA_DRIVER_ACTIVE BIT(0) /* driver entry is active */
2251 #define IL_STA_UCODE_ACTIVE BIT(1) /* ucode entry is active */
2252 #define IL_STA_UCODE_INPROGRESS BIT(2) /* ucode entry is in process of
2254 #define IL_STA_LOCAL BIT(3) /* station state not directed by mac80211;
2255 (this is for the IBSS BSSID stations) */
2256 #define IL_STA_BCAST BIT(4) /* this station is the special bcast station */
2258 void il_restore_stations(struct il_priv
*il
);
2259 void il_clear_ucode_stations(struct il_priv
*il
);
2260 void il_dealloc_bcast_stations(struct il_priv
*il
);
2261 int il_get_free_ucode_key_idx(struct il_priv
*il
);
2262 int il_send_add_sta(struct il_priv
*il
, struct il_addsta_cmd
*sta
, u8 flags
);
2263 int il_add_station_common(struct il_priv
*il
, const u8
*addr
, bool is_ap
,
2264 struct ieee80211_sta
*sta
, u8
*sta_id_r
);
2265 int il_remove_station(struct il_priv
*il
, const u8 sta_id
, const u8
* addr
);
2266 int il_mac_sta_remove(struct ieee80211_hw
*hw
, struct ieee80211_vif
*vif
,
2267 struct ieee80211_sta
*sta
);
2269 u8
il_prep_station(struct il_priv
*il
, const u8
*addr
, bool is_ap
,
2270 struct ieee80211_sta
*sta
);
2272 int il_send_lq_cmd(struct il_priv
*il
, struct il_link_quality_cmd
*lq
,
2273 u8 flags
, bool init
);
2276 * il_clear_driver_stations - clear knowledge of all stations from driver
2277 * @il: iwl il struct
2279 * This is called during il_down() to make sure that in the case
2280 * we're coming there from a hardware restart mac80211 will be
2281 * able to reconfigure stations -- if we're getting there in the
2282 * normal down flow then the stations will already be cleared.
2285 il_clear_driver_stations(struct il_priv
*il
)
2287 unsigned long flags
;
2289 spin_lock_irqsave(&il
->sta_lock
, flags
);
2290 memset(il
->stations
, 0, sizeof(il
->stations
));
2291 il
->num_stations
= 0;
2292 il
->ucode_key_table
= 0;
2293 spin_unlock_irqrestore(&il
->sta_lock
, flags
);
2297 il_sta_id(struct ieee80211_sta
*sta
)
2300 return IL_INVALID_STATION
;
2302 return ((struct il_station_priv_common
*)sta
->drv_priv
)->sta_id
;
2306 * il_sta_id_or_broadcast - return sta_id or broadcast sta
2308 * @context: the current context
2309 * @sta: mac80211 station
2311 * In certain circumstances mac80211 passes a station pointer
2312 * that may be %NULL, for example during TX or key setup. In
2313 * that case, we need to use the broadcast station, so this
2314 * inline wraps that pattern.
2317 il_sta_id_or_broadcast(struct il_priv
*il
, struct ieee80211_sta
*sta
)
2322 return il
->hw_params
.bcast_id
;
2324 sta_id
= il_sta_id(sta
);
2327 * mac80211 should not be passing a partially
2328 * initialised station!
2330 WARN_ON(sta_id
== IL_INVALID_STATION
);
2336 * il_queue_inc_wrap - increment queue idx, wrap back to beginning
2337 * @idx -- current idx
2338 * @n_bd -- total number of entries in queue (must be power of 2)
2341 il_queue_inc_wrap(int idx
, int n_bd
)
2343 return ++idx
& (n_bd
- 1);
2347 * il_queue_dec_wrap - decrement queue idx, wrap back to end
2348 * @idx -- current idx
2349 * @n_bd -- total number of entries in queue (must be power of 2)
2352 il_queue_dec_wrap(int idx
, int n_bd
)
2354 return --idx
& (n_bd
- 1);
2357 /* TODO: Move fw_desc functions to iwl-pci.ko */
2359 il_free_fw_desc(struct pci_dev
*pci_dev
, struct fw_desc
*desc
)
2362 dma_free_coherent(&pci_dev
->dev
, desc
->len
, desc
->v_addr
,
2364 desc
->v_addr
= NULL
;
2369 il_alloc_fw_desc(struct pci_dev
*pci_dev
, struct fw_desc
*desc
)
2372 desc
->v_addr
= NULL
;
2377 dma_alloc_coherent(&pci_dev
->dev
, desc
->len
, &desc
->p_addr
,
2379 return (desc
->v_addr
!= NULL
) ? 0 : -ENOMEM
;
2383 * we have 8 bits used like this:
2387 * | | | | | | +-+-------- AC queue (0-3)
2389 * | +-+-+-+-+------------ HW queue ID
2391 * +---------------------- unused
2394 il_set_swq_id(struct il_tx_queue
*txq
, u8 ac
, u8 hwq
)
2396 BUG_ON(ac
> 3); /* only have 2 bits */
2397 BUG_ON(hwq
> 31); /* only use 5 bits */
2399 txq
->swq_id
= (hwq
<< 2) | ac
;
2403 il_wake_queue(struct il_priv
*il
, struct il_tx_queue
*txq
)
2405 u8 queue
= txq
->swq_id
;
2407 u8 hwq
= (queue
>> 2) & 0x1f;
2409 if (test_and_clear_bit(hwq
, il
->queue_stopped
))
2410 if (atomic_dec_return(&il
->queue_stop_count
[ac
]) <= 0)
2411 ieee80211_wake_queue(il
->hw
, ac
);
2415 il_stop_queue(struct il_priv
*il
, struct il_tx_queue
*txq
)
2417 u8 queue
= txq
->swq_id
;
2419 u8 hwq
= (queue
>> 2) & 0x1f;
2421 if (!test_and_set_bit(hwq
, il
->queue_stopped
))
2422 if (atomic_inc_return(&il
->queue_stop_count
[ac
]) > 0)
2423 ieee80211_stop_queue(il
->hw
, ac
);
2426 #ifdef ieee80211_stop_queue
2427 #undef ieee80211_stop_queue
2430 #define ieee80211_stop_queue DO_NOT_USE_ieee80211_stop_queue
2432 #ifdef ieee80211_wake_queue
2433 #undef ieee80211_wake_queue
2436 #define ieee80211_wake_queue DO_NOT_USE_ieee80211_wake_queue
2439 il_disable_interrupts(struct il_priv
*il
)
2441 clear_bit(S_INT_ENABLED
, &il
->status
);
2443 /* disable interrupts from uCode/NIC to host */
2444 _il_wr(il
, CSR_INT_MASK
, 0x00000000);
2446 /* acknowledge/clear/reset any interrupts still pending
2447 * from uCode or flow handler (Rx/Tx DMA) */
2448 _il_wr(il
, CSR_INT
, 0xffffffff);
2449 _il_wr(il
, CSR_FH_INT_STATUS
, 0xffffffff);
2453 il_enable_rfkill_int(struct il_priv
*il
)
2455 _il_wr(il
, CSR_INT_MASK
, CSR_INT_BIT_RF_KILL
);
2459 il_enable_interrupts(struct il_priv
*il
)
2461 set_bit(S_INT_ENABLED
, &il
->status
);
2462 _il_wr(il
, CSR_INT_MASK
, il
->inta_mask
);
2466 * il_beacon_time_mask_low - mask of lower 32 bit of beacon time
2467 * @il -- pointer to il_priv data structure
2468 * @tsf_bits -- number of bits need to shift for masking)
2471 il_beacon_time_mask_low(struct il_priv
*il
, u16 tsf_bits
)
2473 return (1 << tsf_bits
) - 1;
2477 * il_beacon_time_mask_high - mask of higher 32 bit of beacon time
2478 * @il -- pointer to il_priv data structure
2479 * @tsf_bits -- number of bits need to shift for masking)
2482 il_beacon_time_mask_high(struct il_priv
*il
, u16 tsf_bits
)
2484 return ((1 << (32 - tsf_bits
)) - 1) << tsf_bits
;
2488 * struct il_rb_status - reseve buffer status host memory mapped FH registers
2490 * @closed_rb_num [0:11] - Indicates the idx of the RB which was closed
2491 * @closed_fr_num [0:11] - Indicates the idx of the RX Frame which was closed
2492 * @finished_rb_num [0:11] - Indicates the idx of the current RB
2493 * in which the last frame was written to
2494 * @finished_fr_num [0:11] - Indicates the idx of the RX Frame
2495 * which was transferred
2497 struct il_rb_status
{
2498 __le16 closed_rb_num
;
2499 __le16 closed_fr_num
;
2500 __le16 finished_rb_num
;
2501 __le16 finished_fr_nam
;
2502 __le32 __unused
; /* 3945 only */
2505 #define TFD_QUEUE_SIZE_MAX (256)
2506 #define TFD_QUEUE_SIZE_BC_DUP (64)
2507 #define TFD_QUEUE_BC_SIZE (TFD_QUEUE_SIZE_MAX + TFD_QUEUE_SIZE_BC_DUP)
2508 #define IL_TX_DMA_MASK DMA_BIT_MASK(36)
2509 #define IL_NUM_OF_TBS 20
2512 il_get_dma_hi_addr(dma_addr_t addr
)
2514 return (sizeof(addr
) > sizeof(u32
) ? (addr
>> 16) >> 16 : 0) & 0xF;
2518 * struct il_tfd_tb transmit buffer descriptor within transmit frame descriptor
2520 * This structure contains dma address and length of transmission address
2522 * @lo: low [31:0] portion of the dma address of TX buffer every even is
2523 * unaligned on 16 bit boundary
2524 * @hi_n_len: 0-3 [35:32] portion of dma
2525 * 4-15 length of the tx buffer
2535 * Transmit Frame Descriptor (TFD)
2537 * @ __reserved1[3] reserved
2538 * @ num_tbs 0-4 number of active tbs
2540 * 6-7 padding (not used)
2541 * @ tbs[20] transmit frame buffer descriptors
2544 * Each Tx queue uses a circular buffer of 256 TFDs stored in host DRAM.
2545 * Both driver and device share these circular buffers, each of which must be
2546 * contiguous 256 TFDs x 128 bytes-per-TFD = 32 KBytes
2548 * Driver must indicate the physical address of the base of each
2549 * circular buffer via the FH49_MEM_CBBC_QUEUE registers.
2551 * Each TFD contains pointer/size information for up to 20 data buffers
2552 * in host DRAM. These buffers collectively contain the (one) frame described
2553 * by the TFD. Each buffer must be a single contiguous block of memory within
2554 * itself, but buffers may be scattered in host DRAM. Each buffer has max size
2555 * of (4K - 4). The concatenates all of a TFD's buffers into a single
2556 * Tx frame, up to 8 KBytes in size.
2558 * A maximum of 255 (not 256!) TFDs may be on a queue waiting for Tx.
2563 struct il_tfd_tb tbs
[IL_NUM_OF_TBS
];
2567 #define PCI_CFG_RETRY_TIMEOUT 0x041
2569 /* PCI register values */
2570 #define PCI_CFG_LINK_CTRL_VAL_L0S_EN 0x01
2571 #define PCI_CFG_LINK_CTRL_VAL_L1_EN 0x02
2573 struct il_rate_info
{
2574 u8 plcp
; /* uCode API: RATE_6M_PLCP, etc. */
2575 u8 plcp_siso
; /* uCode API: RATE_SISO_6M_PLCP, etc. */
2576 u8 plcp_mimo2
; /* uCode API: RATE_MIMO2_6M_PLCP, etc. */
2577 u8 ieee
; /* MAC header: RATE_6M_IEEE, etc. */
2578 u8 prev_ieee
; /* previous rate in IEEE speeds */
2579 u8 next_ieee
; /* next rate in IEEE speeds */
2580 u8 prev_rs
; /* previous rate used in rs algo */
2581 u8 next_rs
; /* next rate used in rs algo */
2582 u8 prev_rs_tgg
; /* previous rate used in TGG rs algo */
2583 u8 next_rs_tgg
; /* next rate used in TGG rs algo */
2586 struct il3945_rate_info
{
2587 u8 plcp
; /* uCode API: RATE_6M_PLCP, etc. */
2588 u8 ieee
; /* MAC header: RATE_6M_IEEE, etc. */
2589 u8 prev_ieee
; /* previous rate in IEEE speeds */
2590 u8 next_ieee
; /* next rate in IEEE speeds */
2591 u8 prev_rs
; /* previous rate used in rs algo */
2592 u8 next_rs
; /* next rate used in rs algo */
2593 u8 prev_rs_tgg
; /* previous rate used in TGG rs algo */
2594 u8 next_rs_tgg
; /* next rate used in TGG rs algo */
2595 u8 table_rs_idx
; /* idx in rate scale table cmd */
2596 u8 prev_table_rs
; /* prev in rate table cmd */
2600 * These serve as idxes into
2601 * struct il_rate_info il_rates[RATE_COUNT];
2618 RATE_COUNT_LEGACY
= RATE_COUNT
- 1, /* Excluding 60M */
2619 RATE_COUNT_3945
= RATE_COUNT
- 1,
2620 RATE_INVM_IDX
= RATE_COUNT
,
2621 RATE_INVALID
= RATE_COUNT
,
2625 RATE_6M_IDX_TBL
= 0,
2637 RATE_INVM_IDX_TBL
= RATE_INVM_IDX
- 1,
2641 IL_FIRST_OFDM_RATE
= RATE_6M_IDX
,
2642 IL39_LAST_OFDM_RATE
= RATE_54M_IDX
,
2643 IL_LAST_OFDM_RATE
= RATE_60M_IDX
,
2644 IL_FIRST_CCK_RATE
= RATE_1M_IDX
,
2645 IL_LAST_CCK_RATE
= RATE_11M_IDX
,
2648 /* #define vs. enum to keep from defaulting to 'large integer' */
2649 #define RATE_6M_MASK (1 << RATE_6M_IDX)
2650 #define RATE_9M_MASK (1 << RATE_9M_IDX)
2651 #define RATE_12M_MASK (1 << RATE_12M_IDX)
2652 #define RATE_18M_MASK (1 << RATE_18M_IDX)
2653 #define RATE_24M_MASK (1 << RATE_24M_IDX)
2654 #define RATE_36M_MASK (1 << RATE_36M_IDX)
2655 #define RATE_48M_MASK (1 << RATE_48M_IDX)
2656 #define RATE_54M_MASK (1 << RATE_54M_IDX)
2657 #define RATE_60M_MASK (1 << RATE_60M_IDX)
2658 #define RATE_1M_MASK (1 << RATE_1M_IDX)
2659 #define RATE_2M_MASK (1 << RATE_2M_IDX)
2660 #define RATE_5M_MASK (1 << RATE_5M_IDX)
2661 #define RATE_11M_MASK (1 << RATE_11M_IDX)
2663 /* uCode API values for legacy bit rates, both OFDM and CCK */
2673 RATE_60M_PLCP
= 3, /*FIXME:RS:should be removed */
2677 RATE_11M_PLCP
= 110,
2678 /*FIXME:RS:add RATE_LEGACY_INVM_PLCP = 0, */
2681 /* uCode API values for OFDM high-throughput (HT) bit rates */
2683 RATE_SISO_6M_PLCP
= 0,
2684 RATE_SISO_12M_PLCP
= 1,
2685 RATE_SISO_18M_PLCP
= 2,
2686 RATE_SISO_24M_PLCP
= 3,
2687 RATE_SISO_36M_PLCP
= 4,
2688 RATE_SISO_48M_PLCP
= 5,
2689 RATE_SISO_54M_PLCP
= 6,
2690 RATE_SISO_60M_PLCP
= 7,
2691 RATE_MIMO2_6M_PLCP
= 0x8,
2692 RATE_MIMO2_12M_PLCP
= 0x9,
2693 RATE_MIMO2_18M_PLCP
= 0xa,
2694 RATE_MIMO2_24M_PLCP
= 0xb,
2695 RATE_MIMO2_36M_PLCP
= 0xc,
2696 RATE_MIMO2_48M_PLCP
= 0xd,
2697 RATE_MIMO2_54M_PLCP
= 0xe,
2698 RATE_MIMO2_60M_PLCP
= 0xf,
2699 RATE_SISO_INVM_PLCP
,
2700 RATE_MIMO2_INVM_PLCP
= RATE_SISO_INVM_PLCP
,
2703 /* MAC header values for bit rates */
2712 RATE_54M_IEEE
= 108,
2713 RATE_60M_IEEE
= 120,
2720 #define IL_CCK_BASIC_RATES_MASK \
2724 #define IL_CCK_RATES_MASK \
2725 (IL_CCK_BASIC_RATES_MASK | \
2729 #define IL_OFDM_BASIC_RATES_MASK \
2734 #define IL_OFDM_RATES_MASK \
2735 (IL_OFDM_BASIC_RATES_MASK | \
2742 #define IL_BASIC_RATES_MASK \
2743 (IL_OFDM_BASIC_RATES_MASK | \
2744 IL_CCK_BASIC_RATES_MASK)
2746 #define RATES_MASK ((1 << RATE_COUNT) - 1)
2747 #define RATES_MASK_3945 ((1 << RATE_COUNT_3945) - 1)
2749 #define IL_INVALID_VALUE -1
2751 #define IL_MIN_RSSI_VAL -100
2752 #define IL_MAX_RSSI_VAL 0
2754 /* These values specify how many Tx frame attempts before
2755 * searching for a new modulation mode */
2756 #define IL_LEGACY_FAILURE_LIMIT 160
2757 #define IL_LEGACY_SUCCESS_LIMIT 480
2758 #define IL_LEGACY_TBL_COUNT 160
2760 #define IL_NONE_LEGACY_FAILURE_LIMIT 400
2761 #define IL_NONE_LEGACY_SUCCESS_LIMIT 4500
2762 #define IL_NONE_LEGACY_TBL_COUNT 1500
2764 /* Success ratio (ACKed / attempted tx frames) values (perfect is 128 * 100) */
2765 #define IL_RS_GOOD_RATIO 12800 /* 100% */
2766 #define RATE_SCALE_SWITCH 10880 /* 85% */
2767 #define RATE_HIGH_TH 10880 /* 85% */
2768 #define RATE_INCREASE_TH 6400 /* 50% */
2769 #define RATE_DECREASE_TH 1920 /* 15% */
2771 /* possible actions when in legacy mode */
2772 #define IL_LEGACY_SWITCH_ANTENNA1 0
2773 #define IL_LEGACY_SWITCH_ANTENNA2 1
2774 #define IL_LEGACY_SWITCH_SISO 2
2775 #define IL_LEGACY_SWITCH_MIMO2_AB 3
2776 #define IL_LEGACY_SWITCH_MIMO2_AC 4
2777 #define IL_LEGACY_SWITCH_MIMO2_BC 5
2779 /* possible actions when in siso mode */
2780 #define IL_SISO_SWITCH_ANTENNA1 0
2781 #define IL_SISO_SWITCH_ANTENNA2 1
2782 #define IL_SISO_SWITCH_MIMO2_AB 2
2783 #define IL_SISO_SWITCH_MIMO2_AC 3
2784 #define IL_SISO_SWITCH_MIMO2_BC 4
2785 #define IL_SISO_SWITCH_GI 5
2787 /* possible actions when in mimo mode */
2788 #define IL_MIMO2_SWITCH_ANTENNA1 0
2789 #define IL_MIMO2_SWITCH_ANTENNA2 1
2790 #define IL_MIMO2_SWITCH_SISO_A 2
2791 #define IL_MIMO2_SWITCH_SISO_B 3
2792 #define IL_MIMO2_SWITCH_SISO_C 4
2793 #define IL_MIMO2_SWITCH_GI 5
2795 #define IL_MAX_SEARCH IL_MIMO2_SWITCH_GI
2797 #define IL_ACTION_LIMIT 3 /* # possible actions */
2799 #define LQ_SIZE 2 /* 2 mode tables: "Active" and "Search" */
2801 /* load per tid defines for A-MPDU activation */
2802 #define IL_AGG_TPT_THREHOLD 0
2803 #define IL_AGG_LOAD_THRESHOLD 10
2804 #define IL_AGG_ALL_TID 0xff
2805 #define TID_QUEUE_CELL_SPACING 50 /*mS */
2806 #define TID_QUEUE_MAX_SIZE 20
2807 #define TID_ROUND_VALUE 5 /* mS */
2808 #define TID_MAX_LOAD_COUNT 8
2810 #define TID_MAX_TIME_DIFF ((TID_QUEUE_MAX_SIZE - 1) * TID_QUEUE_CELL_SPACING)
2811 #define TIME_WRAP_AROUND(x, y) (((y) > (x)) ? (y) - (x) : (0-(x)) + (y))
2813 extern const struct il_rate_info il_rates
[RATE_COUNT
];
2815 enum il_table_type
{
2817 LQ_G
, /* legacy types */
2819 LQ_SISO
, /* high-throughput types */
2824 #define is_legacy(tbl) ((tbl) == LQ_G || (tbl) == LQ_A)
2825 #define is_siso(tbl) ((tbl) == LQ_SISO)
2826 #define is_mimo2(tbl) ((tbl) == LQ_MIMO2)
2827 #define is_mimo(tbl) (is_mimo2(tbl))
2828 #define is_Ht(tbl) (is_siso(tbl) || is_mimo(tbl))
2829 #define is_a_band(tbl) ((tbl) == LQ_A)
2830 #define is_g_and(tbl) ((tbl) == LQ_G)
2832 #define ANT_NONE 0x0
2833 #define ANT_A BIT(0)
2834 #define ANT_B BIT(1)
2835 #define ANT_AB (ANT_A | ANT_B)
2836 #define ANT_C BIT(2)
2837 #define ANT_AC (ANT_A | ANT_C)
2838 #define ANT_BC (ANT_B | ANT_C)
2839 #define ANT_ABC (ANT_AB | ANT_C)
2841 #define IL_MAX_MCS_DISPLAY_SIZE 12
2843 struct il_rate_mcs_info
{
2844 char mbps
[IL_MAX_MCS_DISPLAY_SIZE
];
2845 char mcs
[IL_MAX_MCS_DISPLAY_SIZE
];
2849 * struct il_rate_scale_data -- tx success history for one rate
2851 struct il_rate_scale_data
{
2852 u64 data
; /* bitmap of successful frames */
2853 s32 success_counter
; /* number of frames successful */
2854 s32 success_ratio
; /* per-cent * 128 */
2855 s32 counter
; /* number of frames attempted */
2856 s32 average_tpt
; /* success ratio * expected throughput */
2857 unsigned long stamp
;
2861 * struct il_scale_tbl_info -- tx params and success history for all rates
2863 * There are two of these in struct il_lq_sta,
2864 * one for "active", and one for "search".
2866 struct il_scale_tbl_info
{
2867 enum il_table_type lq_type
;
2869 u8 is_SGI
; /* 1 = short guard interval */
2870 u8 is_ht40
; /* 1 = 40 MHz channel width */
2871 u8 is_dup
; /* 1 = duplicated data streams */
2872 u8 action
; /* change modulation; IL_[LEGACY/SISO/MIMO]_SWITCH_* */
2873 u8 max_search
; /* maximun number of tables we can search */
2874 s32
*expected_tpt
; /* throughput metrics; expected_tpt_G, etc. */
2875 u32 current_rate
; /* rate_n_flags, uCode API format */
2876 struct il_rate_scale_data win
[RATE_COUNT
]; /* rate histories */
2879 struct il_traffic_load
{
2880 unsigned long time_stamp
; /* age of the oldest stats */
2881 u32 packet_count
[TID_QUEUE_MAX_SIZE
]; /* packet count in this time
2883 u32 total
; /* total num of packets during the
2884 * last TID_MAX_TIME_DIFF */
2885 u8 queue_count
; /* number of queues that has
2886 * been used since the last cleanup */
2887 u8 head
; /* start of the circular buffer */
2891 * struct il_lq_sta -- driver's rate scaling ilate structure
2893 * Pointer to this gets passed back and forth between driver and mac80211.
2896 u8 active_tbl
; /* idx of active table, range 0-1 */
2897 u8 enable_counter
; /* indicates HT mode */
2898 u8 stay_in_tbl
; /* 1: disallow, 0: allow search for new mode */
2899 u8 search_better_tbl
; /* 1: currently trying alternate mode */
2902 /* The following determine when to search for a new mode */
2903 u32 table_count_limit
;
2904 u32 max_failure_limit
; /* # failed frames before new search */
2905 u32 max_success_limit
; /* # successful frames before new search */
2907 u32 total_failed
; /* total failed frames, any/all rates */
2908 u32 total_success
; /* total successful frames, any/all rates */
2909 u64 flush_timer
; /* time staying in mode before new search */
2911 u8 action_counter
; /* # mode-switch actions tried */
2914 enum ieee80211_band band
;
2916 /* The following are bitmaps of rates; RATE_6M_MASK, etc. */
2918 u16 active_legacy_rate
;
2919 u16 active_siso_rate
;
2920 u16 active_mimo2_rate
;
2921 s8 max_rate_idx
; /* Max rate set by user */
2922 u8 missed_rate_counter
;
2924 struct il_link_quality_cmd lq
;
2925 struct il_scale_tbl_info lq_info
[LQ_SIZE
]; /* "active", "search" */
2926 struct il_traffic_load load
[TID_MAX_LOAD_COUNT
];
2928 #ifdef CONFIG_MAC80211_DEBUGFS
2929 struct dentry
*rs_sta_dbgfs_scale_table_file
;
2930 struct dentry
*rs_sta_dbgfs_stats_table_file
;
2931 struct dentry
*rs_sta_dbgfs_rate_scale_data_file
;
2932 struct dentry
*rs_sta_dbgfs_tx_agg_tid_en_file
;
2935 struct il_priv
*drv
;
2937 /* used to be in sta_info */
2938 int last_txrate_idx
;
2939 /* last tx rate_n_flags */
2940 u32 last_rate_n_flags
;
2941 /* packets destined for this STA are aggregated */
2946 * il_station_priv: Driver's ilate station information
2948 * When mac80211 creates a station it reserves some space (hw->sta_data_size)
2949 * in the structure for use by driver. This structure is places in that
2952 * The common struct MUST be first because it is shared between
2955 struct il_station_priv
{
2956 struct il_station_priv_common common
;
2957 struct il_lq_sta lq_sta
;
2958 atomic_t pending_frames
;
2964 il4965_num_of_ant(u8 m
)
2966 return !!(m
& ANT_A
) + !!(m
& ANT_B
) + !!(m
& ANT_C
);
2970 il4965_first_antenna(u8 mask
)
2980 * il3945_rate_scale_init - Initialize the rate scale table based on assoc info
2982 * The specific throughput table used is based on the type of network
2983 * the associated with, including A, B, G, and G w/ TGG protection
2985 extern void il3945_rate_scale_init(struct ieee80211_hw
*hw
, s32 sta_id
);
2987 /* Initialize station's rate scaling information after adding station */
2988 extern void il4965_rs_rate_init(struct il_priv
*il
, struct ieee80211_sta
*sta
,
2990 extern void il3945_rs_rate_init(struct il_priv
*il
, struct ieee80211_sta
*sta
,
2994 * il_rate_control_register - Register the rate control algorithm callbacks
2996 * Since the rate control algorithm is hardware specific, there is no need
2997 * or reason to place it as a stand alone module. The driver can call
2998 * il_rate_control_register in order to register the rate control callbacks
2999 * with the mac80211 subsystem. This should be performed prior to calling
3000 * ieee80211_register_hw
3003 extern int il4965_rate_control_register(void);
3004 extern int il3945_rate_control_register(void);
3007 * il_rate_control_unregister - Unregister the rate control callbacks
3009 * This should be called after calling ieee80211_unregister_hw, but before
3010 * the driver is unloaded.
3012 extern void il4965_rate_control_unregister(void);
3013 extern void il3945_rate_control_unregister(void);
3015 extern int il_power_update_mode(struct il_priv
*il
, bool force
);
3016 extern void il_power_initialize(struct il_priv
*il
);
3018 extern u32 il_debug_level
;
3020 #ifdef CONFIG_IWLEGACY_DEBUG
3022 * il_get_debug_level: Return active debug level for device
3024 * Using sysfs it is possible to set per device debug level. This debug
3025 * level will be used if set, otherwise the global debug level which can be
3026 * set via module parameter is used.
3029 il_get_debug_level(struct il_priv
*il
)
3031 if (il
->debug_level
)
3032 return il
->debug_level
;
3034 return il_debug_level
;
3038 il_get_debug_level(struct il_priv
*il
)
3040 return il_debug_level
;
3044 #define il_print_hex_error(il, p, len) \
3046 print_hex_dump(KERN_ERR, "iwl data: ", \
3047 DUMP_PREFIX_OFFSET, 16, 1, p, len, 1); \
3050 #ifdef CONFIG_IWLEGACY_DEBUG
3051 #define IL_DBG(level, fmt, args...) \
3053 if (il_get_debug_level(il) & level) \
3054 dev_printk(KERN_ERR, &il->hw->wiphy->dev, \
3055 "%c %s " fmt, in_interrupt() ? 'I' : 'U', \
3056 __func__ , ## args); \
3059 #define il_print_hex_dump(il, level, p, len) \
3061 if (il_get_debug_level(il) & level) \
3062 print_hex_dump(KERN_DEBUG, "iwl data: ", \
3063 DUMP_PREFIX_OFFSET, 16, 1, p, len, 1); \
3067 #define IL_DBG(level, fmt, args...)
3069 il_print_hex_dump(struct il_priv
*il
, int level
, const void *p
, u32 len
)
3072 #endif /* CONFIG_IWLEGACY_DEBUG */
3074 #ifdef CONFIG_IWLEGACY_DEBUGFS
3075 int il_dbgfs_register(struct il_priv
*il
, const char *name
);
3076 void il_dbgfs_unregister(struct il_priv
*il
);
3079 il_dbgfs_register(struct il_priv
*il
, const char *name
)
3085 il_dbgfs_unregister(struct il_priv
*il
)
3088 #endif /* CONFIG_IWLEGACY_DEBUGFS */
3091 * To use the debug system:
3093 * If you are defining a new debug classification, simply add it to the #define
3094 * list here in the form of
3096 * #define IL_DL_xxxx VALUE
3098 * where xxxx should be the name of the classification (for example, WEP).
3100 * You then need to either add a IL_xxxx_DEBUG() macro definition for your
3101 * classification, or use IL_DBG(IL_DL_xxxx, ...) whenever you want
3102 * to send output to that classification.
3104 * The active debug levels can be accessed via files
3106 * /sys/module/iwl4965/parameters/debug
3107 * /sys/module/iwl3945/parameters/debug
3108 * /sys/class/net/wlan0/device/debug_level
3110 * when CONFIG_IWLEGACY_DEBUG=y.
3113 /* 0x0000000F - 0x00000001 */
3114 #define IL_DL_INFO (1 << 0)
3115 #define IL_DL_MAC80211 (1 << 1)
3116 #define IL_DL_HCMD (1 << 2)
3117 #define IL_DL_STATE (1 << 3)
3118 /* 0x000000F0 - 0x00000010 */
3119 #define IL_DL_MACDUMP (1 << 4)
3120 #define IL_DL_HCMD_DUMP (1 << 5)
3121 #define IL_DL_EEPROM (1 << 6)
3122 #define IL_DL_RADIO (1 << 7)
3123 /* 0x00000F00 - 0x00000100 */
3124 #define IL_DL_POWER (1 << 8)
3125 #define IL_DL_TEMP (1 << 9)
3126 #define IL_DL_NOTIF (1 << 10)
3127 #define IL_DL_SCAN (1 << 11)
3128 /* 0x0000F000 - 0x00001000 */
3129 #define IL_DL_ASSOC (1 << 12)
3130 #define IL_DL_DROP (1 << 13)
3131 #define IL_DL_TXPOWER (1 << 14)
3132 #define IL_DL_AP (1 << 15)
3133 /* 0x000F0000 - 0x00010000 */
3134 #define IL_DL_FW (1 << 16)
3135 #define IL_DL_RF_KILL (1 << 17)
3136 #define IL_DL_FW_ERRORS (1 << 18)
3137 #define IL_DL_LED (1 << 19)
3138 /* 0x00F00000 - 0x00100000 */
3139 #define IL_DL_RATE (1 << 20)
3140 #define IL_DL_CALIB (1 << 21)
3141 #define IL_DL_WEP (1 << 22)
3142 #define IL_DL_TX (1 << 23)
3143 /* 0x0F000000 - 0x01000000 */
3144 #define IL_DL_RX (1 << 24)
3145 #define IL_DL_ISR (1 << 25)
3146 #define IL_DL_HT (1 << 26)
3147 /* 0xF0000000 - 0x10000000 */
3148 #define IL_DL_11H (1 << 28)
3149 #define IL_DL_STATS (1 << 29)
3150 #define IL_DL_TX_REPLY (1 << 30)
3151 #define IL_DL_QOS (1 << 31)
3153 #define D_INFO(f, a...) IL_DBG(IL_DL_INFO, f, ## a)
3154 #define D_MAC80211(f, a...) IL_DBG(IL_DL_MAC80211, f, ## a)
3155 #define D_MACDUMP(f, a...) IL_DBG(IL_DL_MACDUMP, f, ## a)
3156 #define D_TEMP(f, a...) IL_DBG(IL_DL_TEMP, f, ## a)
3157 #define D_SCAN(f, a...) IL_DBG(IL_DL_SCAN, f, ## a)
3158 #define D_RX(f, a...) IL_DBG(IL_DL_RX, f, ## a)
3159 #define D_TX(f, a...) IL_DBG(IL_DL_TX, f, ## a)
3160 #define D_ISR(f, a...) IL_DBG(IL_DL_ISR, f, ## a)
3161 #define D_LED(f, a...) IL_DBG(IL_DL_LED, f, ## a)
3162 #define D_WEP(f, a...) IL_DBG(IL_DL_WEP, f, ## a)
3163 #define D_HC(f, a...) IL_DBG(IL_DL_HCMD, f, ## a)
3164 #define D_HC_DUMP(f, a...) IL_DBG(IL_DL_HCMD_DUMP, f, ## a)
3165 #define D_EEPROM(f, a...) IL_DBG(IL_DL_EEPROM, f, ## a)
3166 #define D_CALIB(f, a...) IL_DBG(IL_DL_CALIB, f, ## a)
3167 #define D_FW(f, a...) IL_DBG(IL_DL_FW, f, ## a)
3168 #define D_RF_KILL(f, a...) IL_DBG(IL_DL_RF_KILL, f, ## a)
3169 #define D_DROP(f, a...) IL_DBG(IL_DL_DROP, f, ## a)
3170 #define D_AP(f, a...) IL_DBG(IL_DL_AP, f, ## a)
3171 #define D_TXPOWER(f, a...) IL_DBG(IL_DL_TXPOWER, f, ## a)
3172 #define D_RATE(f, a...) IL_DBG(IL_DL_RATE, f, ## a)
3173 #define D_NOTIF(f, a...) IL_DBG(IL_DL_NOTIF, f, ## a)
3174 #define D_ASSOC(f, a...) IL_DBG(IL_DL_ASSOC, f, ## a)
3175 #define D_HT(f, a...) IL_DBG(IL_DL_HT, f, ## a)
3176 #define D_STATS(f, a...) IL_DBG(IL_DL_STATS, f, ## a)
3177 #define D_TX_REPLY(f, a...) IL_DBG(IL_DL_TX_REPLY, f, ## a)
3178 #define D_QOS(f, a...) IL_DBG(IL_DL_QOS, f, ## a)
3179 #define D_RADIO(f, a...) IL_DBG(IL_DL_RADIO, f, ## a)
3180 #define D_POWER(f, a...) IL_DBG(IL_DL_POWER, f, ## a)
3181 #define D_11H(f, a...) IL_DBG(IL_DL_11H, f, ## a)
3183 #endif /* __il_core_h__ */