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linux_dsm_epyc7002/drivers/net/wireless/iwlwifi/iwl-dev.h
Johannes Berg fd1af15d0a iwlwifi: track station IDs 
mac80211 allows us to store private data per
station, so put the station ID there. This
allows us to avoid the station ID lookup when
removing regular stations. To also be able to
avoid the lookup to remove the special IBSS
BSSID station, track its ID in the per-vif
private data.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
2010-05-10 15:09:04 -07:00

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/******************************************************************************
*
* Copyright(c) 2003 - 2010 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
*
* The full GNU General Public License is included in this distribution in the
* file called LICENSE.
*
* Contact Information:
* Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*
*****************************************************************************/
/*
* Please use this file (iwl-dev.h) for driver implementation definitions.
* Please use iwl-commands.h for uCode API definitions.
* Please use iwl-4965-hw.h for hardware-related definitions.
*/
#ifndef __iwl_dev_h__
#define __iwl_dev_h__
#include <linux/pci.h> /* for struct pci_device_id */
#include <linux/kernel.h>
#include <net/ieee80211_radiotap.h>
#include "iwl-eeprom.h"
#include "iwl-csr.h"
#include "iwl-prph.h"
#include "iwl-fh.h"
#include "iwl-debug.h"
#include "iwl-4965-hw.h"
#include "iwl-3945-hw.h"
#include "iwl-agn-hw.h"
#include "iwl-led.h"
#include "iwl-power.h"
#include "iwl-agn-rs.h"
/* configuration for the iwl4965 */
extern struct iwl_cfg iwl4965_agn_cfg;
extern struct iwl_cfg iwl5300_agn_cfg;
extern struct iwl_cfg iwl5100_agn_cfg;
extern struct iwl_cfg iwl5350_agn_cfg;
extern struct iwl_cfg iwl5100_bgn_cfg;
extern struct iwl_cfg iwl5100_abg_cfg;
extern struct iwl_cfg iwl5150_agn_cfg;
extern struct iwl_cfg iwl5150_abg_cfg;
extern struct iwl_cfg iwl6000g2a_2agn_cfg;
extern struct iwl_cfg iwl6000i_2agn_cfg;
extern struct iwl_cfg iwl6000i_2abg_cfg;
extern struct iwl_cfg iwl6000i_2bg_cfg;
extern struct iwl_cfg iwl6000_3agn_cfg;
extern struct iwl_cfg iwl6050_2agn_cfg;
extern struct iwl_cfg iwl6050_2abg_cfg;
extern struct iwl_cfg iwl1000_bgn_cfg;
extern struct iwl_cfg iwl1000_bg_cfg;
struct iwl_tx_queue;
/* CT-KILL constants */
#define CT_KILL_THRESHOLD_LEGACY 110 /* in Celsius */
#define CT_KILL_THRESHOLD 114 /* in Celsius */
#define CT_KILL_EXIT_THRESHOLD 95 /* in Celsius */
/* Default noise level to report when noise measurement is not available.
* This may be because we're:
* 1) Not associated (4965, no beacon statistics being sent to driver)
* 2) Scanning (noise measurement does not apply to associated channel)
* 3) Receiving CCK (3945 delivers noise info only for OFDM frames)
* Use default noise value of -127 ... this is below the range of measurable
* Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
* Also, -127 works better than 0 when averaging frames with/without
* noise info (e.g. averaging might be done in app); measured dBm values are
* always negative ... using a negative value as the default keeps all
* averages within an s8's (used in some apps) range of negative values. */
#define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
/*
* RTS threshold here is total size [2347] minus 4 FCS bytes
* Per spec:
* a value of 0 means RTS on all data/management packets
* a value > max MSDU size means no RTS
* else RTS for data/management frames where MPDU is larger
* than RTS value.
*/
#define DEFAULT_RTS_THRESHOLD 2347U
#define MIN_RTS_THRESHOLD 0U
#define MAX_RTS_THRESHOLD 2347U
#define MAX_MSDU_SIZE 2304U
#define MAX_MPDU_SIZE 2346U
#define DEFAULT_BEACON_INTERVAL 100U
#define DEFAULT_SHORT_RETRY_LIMIT 7U
#define DEFAULT_LONG_RETRY_LIMIT 4U
struct iwl_rx_mem_buffer {
dma_addr_t page_dma;
struct page *page;
struct list_head list;
};
#define rxb_addr(r) page_address(r->page)
/* defined below */
struct iwl_device_cmd;
struct iwl_cmd_meta {
/* only for SYNC commands, iff the reply skb is wanted */
struct iwl_host_cmd *source;
/*
* only for ASYNC commands
* (which is somewhat stupid -- look at iwl-sta.c for instance
* which duplicates a bunch of code because the callback isn't
* invoked for SYNC commands, if it were and its result passed
* through it would be simpler...)
*/
void (*callback)(struct iwl_priv *priv,
struct iwl_device_cmd *cmd,
struct iwl_rx_packet *pkt);
/* The CMD_SIZE_HUGE flag bit indicates that the command
* structure is stored at the end of the shared queue memory. */
u32 flags;
DECLARE_PCI_UNMAP_ADDR(mapping)
DECLARE_PCI_UNMAP_LEN(len)
};
/*
* Generic queue structure
*
* Contains common data for Rx and Tx queues
*/
struct iwl_queue {
int n_bd; /* number of BDs in this queue */
int write_ptr; /* 1-st empty entry (index) host_w*/
int read_ptr; /* last used entry (index) host_r*/
/* use for monitoring and recovering the stuck queue */
int last_read_ptr; /* storing the last read_ptr */
/* number of time read_ptr and last_read_ptr are the same */
u8 repeat_same_read_ptr;
dma_addr_t dma_addr; /* physical addr for BD's */
int n_window; /* safe queue window */
u32 id;
int low_mark; /* low watermark, resume queue if free
* space more than this */
int high_mark; /* high watermark, stop queue if free
* space less than this */
} __attribute__ ((packed));
/* One for each TFD */
struct iwl_tx_info {
struct sk_buff *skb[IWL_NUM_OF_TBS - 1];
};
/**
* struct iwl_tx_queue - Tx Queue for DMA
* @q: generic Rx/Tx queue descriptor
* @bd: base of circular buffer of TFDs
* @cmd: array of command/TX buffer pointers
* @meta: array of meta data for each command/tx buffer
* @dma_addr_cmd: physical address of cmd/tx buffer array
* @txb: array of per-TFD driver data
* @need_update: indicates need to update read/write index
* @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
*
* A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
* descriptors) and required locking structures.
*/
#define TFD_TX_CMD_SLOTS 256
#define TFD_CMD_SLOTS 32
struct iwl_tx_queue {
struct iwl_queue q;
void *tfds;
struct iwl_device_cmd **cmd;
struct iwl_cmd_meta *meta;
struct iwl_tx_info *txb;
u8 need_update;
u8 sched_retry;
u8 active;
u8 swq_id;
};
#define IWL_NUM_SCAN_RATES (2)
struct iwl4965_channel_tgd_info {
u8 type;
s8 max_power;
};
struct iwl4965_channel_tgh_info {
s64 last_radar_time;
};
#define IWL4965_MAX_RATE (33)
struct iwl3945_clip_group {
/* maximum power level to prevent clipping for each rate, derived by
* us from this band's saturation power in EEPROM */
const s8 clip_powers[IWL_MAX_RATES];
};
/* current Tx power values to use, one for each rate for each channel.
* requested power is limited by:
* -- regulatory EEPROM limits for this channel
* -- hardware capabilities (clip-powers)
* -- spectrum management
* -- user preference (e.g. iwconfig)
* when requested power is set, base power index must also be set. */
struct iwl3945_channel_power_info {
struct iwl3945_tx_power tpc; /* actual radio and DSP gain settings */
s8 power_table_index; /* actual (compenst'd) index into gain table */
s8 base_power_index; /* gain index for power at factory temp. */
s8 requested_power; /* power (dBm) requested for this chnl/rate */
};
/* current scan Tx power values to use, one for each scan rate for each
* channel. */
struct iwl3945_scan_power_info {
struct iwl3945_tx_power tpc; /* actual radio and DSP gain settings */
s8 power_table_index; /* actual (compenst'd) index into gain table */
s8 requested_power; /* scan pwr (dBm) requested for chnl/rate */
};
/*
* One for each channel, holds all channel setup data
* Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
* with one another!
*/
struct iwl_channel_info {
struct iwl4965_channel_tgd_info tgd;
struct iwl4965_channel_tgh_info tgh;
struct iwl_eeprom_channel eeprom; /* EEPROM regulatory limit */
struct iwl_eeprom_channel ht40_eeprom; /* EEPROM regulatory limit for
* HT40 channel */
u8 channel; /* channel number */
u8 flags; /* flags copied from EEPROM */
s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
s8 curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) limit */
s8 min_power; /* always 0 */
s8 scan_power; /* (dBm) regul. eeprom, direct scans, any rate */
u8 group_index; /* 0-4, maps channel to group1/2/3/4/5 */
u8 band_index; /* 0-4, maps channel to band1/2/3/4/5 */
enum ieee80211_band band;
/* HT40 channel info */
s8 ht40_max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
u8 ht40_flags; /* flags copied from EEPROM */
u8 ht40_extension_channel; /* HT_IE_EXT_CHANNEL_* */
/* Radio/DSP gain settings for each "normal" data Tx rate.
* These include, in addition to RF and DSP gain, a few fields for
* remembering/modifying gain settings (indexes). */
struct iwl3945_channel_power_info power_info[IWL4965_MAX_RATE];
/* Radio/DSP gain settings for each scan rate, for directed scans. */
struct iwl3945_scan_power_info scan_pwr_info[IWL_NUM_SCAN_RATES];
};
#define IWL_TX_FIFO_BK 0
#define IWL_TX_FIFO_BE 1
#define IWL_TX_FIFO_VI 2
#define IWL_TX_FIFO_VO 3
#define IWL_TX_FIFO_UNUSED -1
/* Minimum number of queues. MAX_NUM is defined in hw specific files.
* Set the minimum to accommodate the 4 standard TX queues, 1 command
* queue, 2 (unused) HCCA queues, and 4 HT queues (one for each AC) */
#define IWL_MIN_NUM_QUEUES 10
/*
* Queue #4 is the command queue for 3945/4965/5x00/1000/6x00,
* the driver maps it into the appropriate device FIFO for the
* uCode.
*/
#define IWL_CMD_QUEUE_NUM 4
/* Power management (not Tx power) structures */
enum iwl_pwr_src {
IWL_PWR_SRC_VMAIN,
IWL_PWR_SRC_VAUX,
};
#define IEEE80211_DATA_LEN 2304
#define IEEE80211_4ADDR_LEN 30
#define IEEE80211_HLEN (IEEE80211_4ADDR_LEN)
#define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
struct iwl_frame {
union {
struct ieee80211_hdr frame;
struct iwl_tx_beacon_cmd beacon;
u8 raw[IEEE80211_FRAME_LEN];
u8 cmd[360];
} u;
struct list_head list;
};
#define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
#define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
#define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
enum {
CMD_SYNC = 0,
CMD_SIZE_NORMAL = 0,
CMD_NO_SKB = 0,
CMD_SIZE_HUGE = (1 << 0),
CMD_ASYNC = (1 << 1),
CMD_WANT_SKB = (1 << 2),
};
#define DEF_CMD_PAYLOAD_SIZE 320
/**
* struct iwl_device_cmd
*
* For allocation of the command and tx queues, this establishes the overall
* size of the largest command we send to uCode, except for a scan command
* (which is relatively huge; space is allocated separately).
*/
struct iwl_device_cmd {
struct iwl_cmd_header hdr; /* uCode API */
union {
u32 flags;
u8 val8;
u16 val16;
u32 val32;
struct iwl_tx_cmd tx;
struct iwl6000_channel_switch_cmd chswitch;
u8 payload[DEF_CMD_PAYLOAD_SIZE];
} __attribute__ ((packed)) cmd;
} __attribute__ ((packed));
#define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_device_cmd))
struct iwl_host_cmd {
const void *data;
unsigned long reply_page;
void (*callback)(struct iwl_priv *priv,
struct iwl_device_cmd *cmd,
struct iwl_rx_packet *pkt);
u32 flags;
u16 len;
u8 id;
};
#define SUP_RATE_11A_MAX_NUM_CHANNELS 8
#define SUP_RATE_11B_MAX_NUM_CHANNELS 4
#define SUP_RATE_11G_MAX_NUM_CHANNELS 12
/**
* struct iwl_rx_queue - Rx queue
* @bd: driver's pointer to buffer of receive buffer descriptors (rbd)
* @dma_addr: bus address of buffer of receive buffer descriptors (rbd)
* @read: Shared index to newest available Rx buffer
* @write: Shared index to oldest written Rx packet
* @free_count: Number of pre-allocated buffers in rx_free
* @rx_free: list of free SKBs for use
* @rx_used: List of Rx buffers with no SKB
* @need_update: flag to indicate we need to update read/write index
* @rb_stts: driver's pointer to receive buffer status
* @rb_stts_dma: bus address of receive buffer status
*
* NOTE: rx_free and rx_used are used as a FIFO for iwl_rx_mem_buffers
*/
struct iwl_rx_queue {
__le32 *bd;
dma_addr_t dma_addr;
struct iwl_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
struct iwl_rx_mem_buffer *queue[RX_QUEUE_SIZE];
u32 read;
u32 write;
u32 free_count;
u32 write_actual;
struct list_head rx_free;
struct list_head rx_used;
int need_update;
struct iwl_rb_status *rb_stts;
dma_addr_t rb_stts_dma;
spinlock_t lock;
};
#define IWL_SUPPORTED_RATES_IE_LEN 8
#define MAX_TID_COUNT 9
#define IWL_INVALID_RATE 0xFF
#define IWL_INVALID_VALUE -1
/**
* struct iwl_ht_agg -- aggregation status while waiting for block-ack
* @txq_id: Tx queue used for Tx attempt
* @frame_count: # frames attempted by Tx command
* @wait_for_ba: Expect block-ack before next Tx reply
* @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window
* @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window
* @bitmap1: High order, one bit for each frame pending ACK in Tx window
* @rate_n_flags: Rate at which Tx was attempted
*
* If REPLY_TX indicates that aggregation was attempted, driver must wait
* for block ack (REPLY_COMPRESSED_BA). This struct stores tx reply info
* until block ack arrives.
*/
struct iwl_ht_agg {
u16 txq_id;
u16 frame_count;
u16 wait_for_ba;
u16 start_idx;
u64 bitmap;
u32 rate_n_flags;
#define IWL_AGG_OFF 0
#define IWL_AGG_ON 1
#define IWL_EMPTYING_HW_QUEUE_ADDBA 2
#define IWL_EMPTYING_HW_QUEUE_DELBA 3
u8 state;
};
struct iwl_tid_data {
u16 seq_number;
u16 tfds_in_queue;
struct iwl_ht_agg agg;
};
struct iwl_hw_key {
enum ieee80211_key_alg alg;
int keylen;
u8 keyidx;
u8 key[32];
};
union iwl_ht_rate_supp {
u16 rates;
struct {
u8 siso_rate;
u8 mimo_rate;
};
};
#define CFG_HT_RX_AMPDU_FACTOR_DEF (0x3)
/*
* Maximal MPDU density for TX aggregation
* 4 - 2us density
* 5 - 4us density
* 6 - 8us density
* 7 - 16us density
*/
#define CFG_HT_MPDU_DENSITY_4USEC (0x5)
#define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_4USEC
struct iwl_ht_config {
/* self configuration data */
bool is_ht;
bool is_40mhz;
bool single_chain_sufficient;
enum ieee80211_smps_mode smps; /* current smps mode */
/* BSS related data */
u8 extension_chan_offset;
u8 ht_protection;
u8 non_GF_STA_present;
};
/* QoS structures */
struct iwl_qos_info {
int qos_active;
struct iwl_qosparam_cmd def_qos_parm;
};
/*
* Structure should be accessed with sta_lock held. When station addition
* is in progress (IWL_STA_UCODE_INPROGRESS) it is possible to access only
* the commands (iwl_addsta_cmd and iwl_link_quality_cmd) without sta_lock
* held.
*/
struct iwl_station_entry {
struct iwl_addsta_cmd sta;
struct iwl_tid_data tid[MAX_TID_COUNT];
u8 used;
struct iwl_hw_key keyinfo;
struct iwl_link_quality_cmd *lq;
};
struct iwl_station_priv_common {
u8 sta_id;
};
/*
* iwl_station_priv: Driver's private station information
*
* When mac80211 creates a station it reserves some space (hw->sta_data_size)
* in the structure for use by driver. This structure is places in that
* space.
*
* The common struct MUST be first because it is shared between
* 3945 and agn!
*/
struct iwl_station_priv {
struct iwl_station_priv_common common;
struct iwl_lq_sta lq_sta;
atomic_t pending_frames;
bool client;
bool asleep;
};
/**
* struct iwl_vif_priv - driver's private per-interface information
*
* When mac80211 allocates a virtual interface, it can allocate
* space for us to put data into.
*/
struct iwl_vif_priv {
u8 ibss_bssid_sta_id;
};
/* one for each uCode image (inst/data, boot/init/runtime) */
struct fw_desc {
void *v_addr; /* access by driver */
dma_addr_t p_addr; /* access by card's busmaster DMA */
u32 len; /* bytes */
};
/* v1/v2 uCode file layout */
struct iwl_ucode_header {
__le32 ver; /* major/minor/API/serial */
union {
struct {
__le32 inst_size; /* bytes of runtime code */
__le32 data_size; /* bytes of runtime data */
__le32 init_size; /* bytes of init code */
__le32 init_data_size; /* bytes of init data */
__le32 boot_size; /* bytes of bootstrap code */
u8 data[0]; /* in same order as sizes */
} v1;
struct {
__le32 build; /* build number */
__le32 inst_size; /* bytes of runtime code */
__le32 data_size; /* bytes of runtime data */
__le32 init_size; /* bytes of init code */
__le32 init_data_size; /* bytes of init data */
__le32 boot_size; /* bytes of bootstrap code */
u8 data[0]; /* in same order as sizes */
} v2;
} u;
};
/*
* new TLV uCode file layout
*
* The new TLV file format contains TLVs, that each specify
* some piece of data. To facilitate "groups", for example
* different instruction image with different capabilities,
* bundled with the same init image, an alternative mechanism
* is provided:
* When the alternative field is 0, that means that the item
* is always valid. When it is non-zero, then it is only
* valid in conjunction with items of the same alternative,
* in which case the driver (user) selects one alternative
* to use.
*/
enum iwl_ucode_tlv_type {
IWL_UCODE_TLV_INVALID = 0, /* unused */
IWL_UCODE_TLV_INST = 1,
IWL_UCODE_TLV_DATA = 2,
IWL_UCODE_TLV_INIT = 3,
IWL_UCODE_TLV_INIT_DATA = 4,
IWL_UCODE_TLV_BOOT = 5,
IWL_UCODE_TLV_PROBE_MAX_LEN = 6, /* a u32 value */
};
struct iwl_ucode_tlv {
__le16 type; /* see above */
__le16 alternative; /* see comment */
__le32 length; /* not including type/length fields */
u8 data[0];
} __attribute__ ((packed));
#define IWL_TLV_UCODE_MAGIC 0x0a4c5749
struct iwl_tlv_ucode_header {
/*
* The TLV style ucode header is distinguished from
* the v1/v2 style header by first four bytes being
* zero, as such is an invalid combination of
* major/minor/API/serial versions.
*/
__le32 zero;
__le32 magic;
u8 human_readable[64];
__le32 ver; /* major/minor/API/serial */
__le32 build;
__le64 alternatives; /* bitmask of valid alternatives */
/*
* The data contained herein has a TLV layout,
* see above for the TLV header and types.
* Note that each TLV is padded to a length
* that is a multiple of 4 for alignment.
*/
u8 data[0];
};
struct iwl4965_ibss_seq {
u8 mac[ETH_ALEN];
u16 seq_num;
u16 frag_num;
unsigned long packet_time;
struct list_head list;
};
struct iwl_sensitivity_ranges {
u16 min_nrg_cck;
u16 max_nrg_cck;
u16 nrg_th_cck;
u16 nrg_th_ofdm;
u16 auto_corr_min_ofdm;
u16 auto_corr_min_ofdm_mrc;
u16 auto_corr_min_ofdm_x1;
u16 auto_corr_min_ofdm_mrc_x1;
u16 auto_corr_max_ofdm;
u16 auto_corr_max_ofdm_mrc;
u16 auto_corr_max_ofdm_x1;
u16 auto_corr_max_ofdm_mrc_x1;
u16 auto_corr_max_cck;
u16 auto_corr_max_cck_mrc;
u16 auto_corr_min_cck;
u16 auto_corr_min_cck_mrc;
u16 barker_corr_th_min;
u16 barker_corr_th_min_mrc;
u16 nrg_th_cca;
};
#define KELVIN_TO_CELSIUS(x) ((x)-273)
#define CELSIUS_TO_KELVIN(x) ((x)+273)
/**
* struct iwl_hw_params
* @max_txq_num: Max # Tx queues supported
* @dma_chnl_num: Number of Tx DMA/FIFO channels
* @scd_bc_tbls_size: size of scheduler byte count tables
* @tfd_size: TFD size
* @tx/rx_chains_num: Number of TX/RX chains
* @valid_tx/rx_ant: usable antennas
* @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
* @max_rxq_log: Log-base-2 of max_rxq_size
* @rx_page_order: Rx buffer page order
* @rx_wrt_ptr_reg: FH{39}_RSCSR_CHNL0_WPTR
* @max_stations:
* @bcast_sta_id:
* @ht40_channel: is 40MHz width possible in band 2.4
* BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ)
* @sw_crypto: 0 for hw, 1 for sw
* @max_xxx_size: for ucode uses
* @ct_kill_threshold: temperature threshold
* @calib_init_cfg: setup initial calibrations for the hw
* @struct iwl_sensitivity_ranges: range of sensitivity values
*/
struct iwl_hw_params {
u8 max_txq_num;
u8 dma_chnl_num;
u16 scd_bc_tbls_size;
u32 tfd_size;
u8 tx_chains_num;
u8 rx_chains_num;
u8 valid_tx_ant;
u8 valid_rx_ant;
u16 max_rxq_size;
u16 max_rxq_log;
u32 rx_page_order;
u32 rx_wrt_ptr_reg;
u8 max_stations;
u8 bcast_sta_id;
u8 ht40_channel;
u8 max_beacon_itrvl; /* in 1024 ms */
u32 max_inst_size;
u32 max_data_size;
u32 max_bsm_size;
u32 ct_kill_threshold; /* value in hw-dependent units */
u32 ct_kill_exit_threshold; /* value in hw-dependent units */
/* for 1000, 6000 series and up */
u32 calib_init_cfg;
const struct iwl_sensitivity_ranges *sens;
};
/******************************************************************************
*
* Functions implemented in core module which are forward declared here
* for use by iwl-[4-5].c
*
* NOTE: The implementation of these functions are not hardware specific
* which is why they are in the core module files.
*
* Naming convention --
* iwl_ <-- Is part of iwlwifi
* iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
* iwl4965_bg_ <-- Called from work queue context
* iwl4965_mac_ <-- mac80211 callback
*
****************************************************************************/
extern void iwl_update_chain_flags(struct iwl_priv *priv);
extern int iwl_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src);
extern const u8 iwl_bcast_addr[ETH_ALEN];
extern int iwl_rxq_stop(struct iwl_priv *priv);
extern void iwl_txq_ctx_stop(struct iwl_priv *priv);
extern int iwl_queue_space(const struct iwl_queue *q);
static inline int iwl_queue_used(const struct iwl_queue *q, int i)
{
return q->write_ptr >= q->read_ptr ?
(i >= q->read_ptr && i < q->write_ptr) :
!(i < q->read_ptr && i >= q->write_ptr);
}
static inline u8 get_cmd_index(struct iwl_queue *q, u32 index, int is_huge)
{
/*
* This is for init calibration result and scan command which
* required buffer > TFD_MAX_PAYLOAD_SIZE,
* the big buffer at end of command array
*/
if (is_huge)
return q->n_window; /* must be power of 2 */
/* Otherwise, use normal size buffers */
return index & (q->n_window - 1);
}
struct iwl_dma_ptr {
dma_addr_t dma;
void *addr;
size_t size;
};
#define IWL_OPERATION_MODE_AUTO 0
#define IWL_OPERATION_MODE_HT_ONLY 1
#define IWL_OPERATION_MODE_MIXED 2
#define IWL_OPERATION_MODE_20MHZ 3
#define IWL_TX_CRC_SIZE 4
#define IWL_TX_DELIMITER_SIZE 4
#define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
/* Sensitivity and chain noise calibration */
#define INITIALIZATION_VALUE 0xFFFF
#define IWL4965_CAL_NUM_BEACONS 20
#define IWL_CAL_NUM_BEACONS 16
#define MAXIMUM_ALLOWED_PATHLOSS 15
#define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
#define MAX_FA_OFDM 50
#define MIN_FA_OFDM 5
#define MAX_FA_CCK 50
#define MIN_FA_CCK 5
#define AUTO_CORR_STEP_OFDM 1
#define AUTO_CORR_STEP_CCK 3
#define AUTO_CORR_MAX_TH_CCK 160
#define NRG_DIFF 2
#define NRG_STEP_CCK 2
#define NRG_MARGIN 8
#define MAX_NUMBER_CCK_NO_FA 100
#define AUTO_CORR_CCK_MIN_VAL_DEF (125)
#define CHAIN_A 0
#define CHAIN_B 1
#define CHAIN_C 2
#define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
#define ALL_BAND_FILTER 0xFF00
#define IN_BAND_FILTER 0xFF
#define MIN_AVERAGE_NOISE_MAX_VALUE 0xFFFFFFFF
#define NRG_NUM_PREV_STAT_L 20
#define NUM_RX_CHAINS 3
enum iwl4965_false_alarm_state {
IWL_FA_TOO_MANY = 0,
IWL_FA_TOO_FEW = 1,
IWL_FA_GOOD_RANGE = 2,
};
enum iwl4965_chain_noise_state {
IWL_CHAIN_NOISE_ALIVE = 0, /* must be 0 */
IWL_CHAIN_NOISE_ACCUMULATE,
IWL_CHAIN_NOISE_CALIBRATED,
IWL_CHAIN_NOISE_DONE,
};
enum iwl4965_calib_enabled_state {
IWL_CALIB_DISABLED = 0, /* must be 0 */
IWL_CALIB_ENABLED = 1,
};
/*
* enum iwl_calib
* defines the order in which results of initial calibrations
* should be sent to the runtime uCode
*/
enum iwl_calib {
IWL_CALIB_XTAL,
IWL_CALIB_DC,
IWL_CALIB_LO,
IWL_CALIB_TX_IQ,
IWL_CALIB_TX_IQ_PERD,
IWL_CALIB_BASE_BAND,
IWL_CALIB_MAX
};
/* Opaque calibration results */
struct iwl_calib_result {
void *buf;
size_t buf_len;
};
enum ucode_type {
UCODE_NONE = 0,
UCODE_INIT,
UCODE_RT
};
/* Sensitivity calib data */
struct iwl_sensitivity_data {
u32 auto_corr_ofdm;
u32 auto_corr_ofdm_mrc;
u32 auto_corr_ofdm_x1;
u32 auto_corr_ofdm_mrc_x1;
u32 auto_corr_cck;
u32 auto_corr_cck_mrc;
u32 last_bad_plcp_cnt_ofdm;
u32 last_fa_cnt_ofdm;
u32 last_bad_plcp_cnt_cck;
u32 last_fa_cnt_cck;
u32 nrg_curr_state;
u32 nrg_prev_state;
u32 nrg_value[10];
u8 nrg_silence_rssi[NRG_NUM_PREV_STAT_L];
u32 nrg_silence_ref;
u32 nrg_energy_idx;
u32 nrg_silence_idx;
u32 nrg_th_cck;
s32 nrg_auto_corr_silence_diff;
u32 num_in_cck_no_fa;
u32 nrg_th_ofdm;
u16 barker_corr_th_min;
u16 barker_corr_th_min_mrc;
u16 nrg_th_cca;
};
/* Chain noise (differential Rx gain) calib data */
struct iwl_chain_noise_data {
u32 active_chains;
u32 chain_noise_a;
u32 chain_noise_b;
u32 chain_noise_c;
u32 chain_signal_a;
u32 chain_signal_b;
u32 chain_signal_c;
u16 beacon_count;
u8 disconn_array[NUM_RX_CHAINS];
u8 delta_gain_code[NUM_RX_CHAINS];
u8 radio_write;
u8 state;
};
#define EEPROM_SEM_TIMEOUT 10 /* milliseconds */
#define EEPROM_SEM_RETRY_LIMIT 1000 /* number of attempts (not time) */
#define IWL_TRAFFIC_ENTRIES (256)
#define IWL_TRAFFIC_ENTRY_SIZE (64)
enum {
MEASUREMENT_READY = (1 << 0),
MEASUREMENT_ACTIVE = (1 << 1),
};
enum iwl_nvm_type {
NVM_DEVICE_TYPE_EEPROM = 0,
NVM_DEVICE_TYPE_OTP,
};
/*
* Two types of OTP memory access modes
* IWL_OTP_ACCESS_ABSOLUTE - absolute address mode,
* based on physical memory addressing
* IWL_OTP_ACCESS_RELATIVE - relative address mode,
* based on logical memory addressing
*/
enum iwl_access_mode {
IWL_OTP_ACCESS_ABSOLUTE,
IWL_OTP_ACCESS_RELATIVE,
};
/**
* enum iwl_pa_type - Power Amplifier type
* @IWL_PA_SYSTEM: based on uCode configuration
* @IWL_PA_INTERNAL: use Internal only
*/
enum iwl_pa_type {
IWL_PA_SYSTEM = 0,
IWL_PA_INTERNAL = 1,
};
/* interrupt statistics */
struct isr_statistics {
u32 hw;
u32 sw;
u32 sw_err;
u32 sch;
u32 alive;
u32 rfkill;
u32 ctkill;
u32 wakeup;
u32 rx;
u32 rx_handlers[REPLY_MAX];
u32 tx;
u32 unhandled;
};
#ifdef CONFIG_IWLWIFI_DEBUGFS
/* management statistics */
enum iwl_mgmt_stats {
MANAGEMENT_ASSOC_REQ = 0,
MANAGEMENT_ASSOC_RESP,
MANAGEMENT_REASSOC_REQ,
MANAGEMENT_REASSOC_RESP,
MANAGEMENT_PROBE_REQ,
MANAGEMENT_PROBE_RESP,
MANAGEMENT_BEACON,
MANAGEMENT_ATIM,
MANAGEMENT_DISASSOC,
MANAGEMENT_AUTH,
MANAGEMENT_DEAUTH,
MANAGEMENT_ACTION,
MANAGEMENT_MAX,
};
/* control statistics */
enum iwl_ctrl_stats {
CONTROL_BACK_REQ = 0,
CONTROL_BACK,
CONTROL_PSPOLL,
CONTROL_RTS,
CONTROL_CTS,
CONTROL_ACK,
CONTROL_CFEND,
CONTROL_CFENDACK,
CONTROL_MAX,
};
struct traffic_stats {
u32 mgmt[MANAGEMENT_MAX];
u32 ctrl[CONTROL_MAX];
u32 data_cnt;
u64 data_bytes;
};
#else
struct traffic_stats {
u64 data_bytes;
};
#endif
/*
* iwl_switch_rxon: "channel switch" structure
*
* @ switch_in_progress: channel switch in progress
* @ channel: new channel
*/
struct iwl_switch_rxon {
bool switch_in_progress;
__le16 channel;
};
/*
* schedule the timer to wake up every UCODE_TRACE_PERIOD milliseconds
* to perform continuous uCode event logging operation if enabled
*/
#define UCODE_TRACE_PERIOD (100)
/*
* iwl_event_log: current uCode event log position
*
* @ucode_trace: enable/disable ucode continuous trace timer
* @num_wraps: how many times the event buffer wraps
* @next_entry: the entry just before the next one that uCode would fill
* @non_wraps_count: counter for no wrap detected when dump ucode events
* @wraps_once_count: counter for wrap once detected when dump ucode events
* @wraps_more_count: counter for wrap more than once detected
* when dump ucode events
*/
struct iwl_event_log {
bool ucode_trace;
u32 num_wraps;
u32 next_entry;
int non_wraps_count;
int wraps_once_count;
int wraps_more_count;
};
/*
* host interrupt timeout value
* used with setting interrupt coalescing timer
* the CSR_INT_COALESCING is an 8 bit register in 32-usec unit
*
* default interrupt coalescing timer is 64 x 32 = 2048 usecs
* default interrupt coalescing calibration timer is 16 x 32 = 512 usecs
*/
#define IWL_HOST_INT_TIMEOUT_MAX (0xFF)
#define IWL_HOST_INT_TIMEOUT_DEF (0x40)
#define IWL_HOST_INT_TIMEOUT_MIN (0x0)
#define IWL_HOST_INT_CALIB_TIMEOUT_MAX (0xFF)
#define IWL_HOST_INT_CALIB_TIMEOUT_DEF (0x10)
#define IWL_HOST_INT_CALIB_TIMEOUT_MIN (0x0)
/*
* This is the threshold value of plcp error rate per 100mSecs. It is
* used to set and check for the validity of plcp_delta.
*/
#define IWL_MAX_PLCP_ERR_THRESHOLD_MIN (0)
#define IWL_MAX_PLCP_ERR_THRESHOLD_DEF (50)
#define IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF (100)
#define IWL_MAX_PLCP_ERR_EXT_LONG_THRESHOLD_DEF (200)
#define IWL_MAX_PLCP_ERR_THRESHOLD_MAX (255)
#define IWL_DELAY_NEXT_FORCE_RF_RESET (HZ*3)
#define IWL_DELAY_NEXT_FORCE_FW_RELOAD (HZ*5)
/* timer constants use to monitor and recover stuck tx queues in mSecs */
#define IWL_MONITORING_PERIOD (1000)
#define IWL_ONE_HUNDRED_MSECS (100)
#define IWL_SIXTY_SECS (60000)
enum iwl_reset {
IWL_RF_RESET = 0,
IWL_FW_RESET,
IWL_MAX_FORCE_RESET,
};
struct iwl_force_reset {
int reset_request_count;
int reset_success_count;
int reset_reject_count;
unsigned long reset_duration;
unsigned long last_force_reset_jiffies;
};
struct iwl_priv {
/* ieee device used by generic ieee processing code */
struct ieee80211_hw *hw;
struct ieee80211_channel *ieee_channels;
struct ieee80211_rate *ieee_rates;
struct iwl_cfg *cfg;
/* temporary frame storage list */
struct list_head free_frames;
int frames_count;
enum ieee80211_band band;
int alloc_rxb_page;
void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv,
struct iwl_rx_mem_buffer *rxb);
struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
/* spectrum measurement report caching */
struct iwl_spectrum_notification measure_report;
u8 measurement_status;
/* ucode beacon time */
u32 ucode_beacon_time;
int missed_beacon_threshold;
/* storing the jiffies when the plcp error rate is received */
unsigned long plcp_jiffies;
/* force reset */
struct iwl_force_reset force_reset[IWL_MAX_FORCE_RESET];
/* we allocate array of iwl4965_channel_info for NIC's valid channels.
* Access via channel # using indirect index array */
struct iwl_channel_info *channel_info; /* channel info array */
u8 channel_count; /* # of channels */
/* thermal calibration */
s32 temperature; /* degrees Kelvin */
s32 last_temperature;
/* init calibration results */
struct iwl_calib_result calib_results[IWL_CALIB_MAX];
/* Scan related variables */
unsigned long scan_start;
unsigned long scan_start_tsf;
void *scan_cmd;
enum ieee80211_band scan_band;
struct cfg80211_scan_request *scan_request;
bool is_internal_short_scan;
u8 scan_tx_ant[IEEE80211_NUM_BANDS];
u8 mgmt_tx_ant;
/* spinlock */
spinlock_t lock; /* protect general shared data */
spinlock_t hcmd_lock; /* protect hcmd */
spinlock_t reg_lock; /* protect hw register access */
struct mutex mutex;
struct mutex sync_cmd_mutex; /* enable serialization of sync commands */
/* basic pci-network driver stuff */
struct pci_dev *pci_dev;
/* pci hardware address support */
void __iomem *hw_base;
u32 hw_rev;
u32 hw_wa_rev;
u8 rev_id;
/* uCode images, save to reload in case of failure */
int fw_index; /* firmware we're trying to load */
u32 ucode_ver; /* version of ucode, copy of
iwl_ucode.ver */
struct fw_desc ucode_code; /* runtime inst */
struct fw_desc ucode_data; /* runtime data original */
struct fw_desc ucode_data_backup; /* runtime data save/restore */
struct fw_desc ucode_init; /* initialization inst */
struct fw_desc ucode_init_data; /* initialization data */
struct fw_desc ucode_boot; /* bootstrap inst */
enum ucode_type ucode_type;
u8 ucode_write_complete; /* the image write is complete */
char firmware_name[25];
struct iwl_rxon_time_cmd rxon_timing;
/* We declare this const so it can only be
* changed via explicit cast within the
* routines that actually update the physical
* hardware */
const struct iwl_rxon_cmd active_rxon;
struct iwl_rxon_cmd staging_rxon;
struct iwl_switch_rxon switch_rxon;
/* 1st responses from initialize and runtime uCode images.
* 4965's initialize alive response contains some calibration data. */
struct iwl_init_alive_resp card_alive_init;
struct iwl_alive_resp card_alive;
unsigned long last_blink_time;
u8 last_blink_rate;
u8 allow_blinking;
u64 led_tpt;
u16 active_rate;
u8 start_calib;
struct iwl_sensitivity_data sensitivity_data;
struct iwl_chain_noise_data chain_noise_data;
__le16 sensitivity_tbl[HD_TABLE_SIZE];
struct iwl_ht_config current_ht_config;
/* Rate scaling data */
u8 retry_rate;
wait_queue_head_t wait_command_queue;
int activity_timer_active;
/* Rx and Tx DMA processing queues */
struct iwl_rx_queue rxq;
struct iwl_tx_queue *txq;
unsigned long txq_ctx_active_msk;
struct iwl_dma_ptr kw; /* keep warm address */
struct iwl_dma_ptr scd_bc_tbls;
u32 scd_base_addr; /* scheduler sram base address */
unsigned long status;
/* counts mgmt, ctl, and data packets */
struct traffic_stats tx_stats;
struct traffic_stats rx_stats;
/* counts interrupts */
struct isr_statistics isr_stats;
struct iwl_power_mgr power_data;
struct iwl_tt_mgmt thermal_throttle;
struct iwl_notif_statistics statistics;
#ifdef CONFIG_IWLWIFI_DEBUG
struct iwl_notif_statistics accum_statistics;
struct iwl_notif_statistics delta_statistics;
struct iwl_notif_statistics max_delta;
#endif
/* context information */
u8 bssid[ETH_ALEN]; /* used only on 3945 but filled by core */
u8 mac_addr[ETH_ALEN];
/*station table variables */
spinlock_t sta_lock;
int num_stations;
struct iwl_station_entry stations[IWL_STATION_COUNT];
struct iwl_wep_key wep_keys[WEP_KEYS_MAX]; /* protected by mutex */
u8 key_mapping_key;
unsigned long ucode_key_table;
/* queue refcounts */
#define IWL_MAX_HW_QUEUES 32
unsigned long queue_stopped[BITS_TO_LONGS(IWL_MAX_HW_QUEUES)];
/* for each AC */
atomic_t queue_stop_count[4];
/* Indication if ieee80211_ops->open has been called */
u8 is_open;
u8 mac80211_registered;
/* eeprom -- this is in the card's little endian byte order */
u8 *eeprom;
int nvm_device_type;
struct iwl_eeprom_calib_info *calib_info;
enum nl80211_iftype iw_mode;
struct sk_buff *ibss_beacon;
/* Last Rx'd beacon timestamp */
u64 timestamp;
struct ieee80211_vif *vif;
union {
#if defined(CONFIG_IWL3945) || defined(CONFIG_IWL3945_MODULE)
struct {
void *shared_virt;
dma_addr_t shared_phys;
struct delayed_work thermal_periodic;
struct delayed_work rfkill_poll;
struct iwl3945_notif_statistics statistics;
#ifdef CONFIG_IWLWIFI_DEBUG
struct iwl3945_notif_statistics accum_statistics;
struct iwl3945_notif_statistics delta_statistics;
struct iwl3945_notif_statistics max_delta;
#endif
u32 sta_supp_rates;
int last_rx_rssi; /* From Rx packet statistics */
/* Rx'd packet timing information */
u32 last_beacon_time;
u64 last_tsf;
/*
* each calibration channel group in the
* EEPROM has a derived clip setting for
* each rate.
*/
const struct iwl3945_clip_group clip_groups[5];
} _3945;
#endif
#if defined(CONFIG_IWLAGN) || defined(CONFIG_IWLAGN_MODULE)
struct {
/* INT ICT Table */
__le32 *ict_tbl;
void *ict_tbl_vir;
dma_addr_t ict_tbl_dma;
dma_addr_t aligned_ict_tbl_dma;
int ict_index;
u32 inta;
bool use_ict;
/*
* reporting the number of tids has AGG on. 0 means
* no AGGREGATION
*/
u8 agg_tids_count;
struct iwl_rx_phy_res last_phy_res;
bool last_phy_res_valid;
struct completion firmware_loading_complete;
} _agn;
#endif
};
struct iwl_hw_params hw_params;
u32 inta_mask;
struct iwl_qos_info qos_data;
struct workqueue_struct *workqueue;
struct work_struct restart;
struct work_struct scan_completed;
struct work_struct rx_replenish;
struct work_struct abort_scan;
struct work_struct beacon_update;
struct work_struct tt_work;
struct work_struct ct_enter;
struct work_struct ct_exit;
struct work_struct start_internal_scan;
struct tasklet_struct irq_tasklet;
struct delayed_work init_alive_start;
struct delayed_work alive_start;
struct delayed_work scan_check;
/* TX Power */
s8 tx_power_user_lmt;
s8 tx_power_device_lmt;
s8 tx_power_lmt_in_half_dbm; /* max tx power in half-dBm format */
#ifdef CONFIG_IWLWIFI_DEBUG
/* debugging info */
u32 debug_level; /* per device debugging will override global
iwl_debug_level if set */
u32 framecnt_to_us;
atomic_t restrict_refcnt;
bool disable_ht40;
#ifdef CONFIG_IWLWIFI_DEBUGFS
/* debugfs */
u16 tx_traffic_idx;
u16 rx_traffic_idx;
u8 *tx_traffic;
u8 *rx_traffic;
struct dentry *debugfs_dir;
u32 dbgfs_sram_offset, dbgfs_sram_len;
#endif /* CONFIG_IWLWIFI_DEBUGFS */
#endif /* CONFIG_IWLWIFI_DEBUG */
struct work_struct txpower_work;
u32 disable_sens_cal;
u32 disable_chain_noise_cal;
u32 disable_tx_power_cal;
struct work_struct run_time_calib_work;
struct timer_list statistics_periodic;
struct timer_list ucode_trace;
struct timer_list monitor_recover;
bool hw_ready;
struct iwl_event_log event_log;
}; /*iwl_priv */
static inline void iwl_txq_ctx_activate(struct iwl_priv *priv, int txq_id)
{
set_bit(txq_id, &priv->txq_ctx_active_msk);
}
static inline void iwl_txq_ctx_deactivate(struct iwl_priv *priv, int txq_id)
{
clear_bit(txq_id, &priv->txq_ctx_active_msk);
}
#ifdef CONFIG_IWLWIFI_DEBUG
const char *iwl_get_tx_fail_reason(u32 status);
/*
* iwl_get_debug_level: Return active debug level for device
*
* Using sysfs it is possible to set per device debug level. This debug
* level will be used if set, otherwise the global debug level which can be
* set via module parameter is used.
*/
static inline u32 iwl_get_debug_level(struct iwl_priv *priv)
{
if (priv->debug_level)
return priv->debug_level;
else
return iwl_debug_level;
}
#else
static inline const char *iwl_get_tx_fail_reason(u32 status) { return ""; }
static inline u32 iwl_get_debug_level(struct iwl_priv *priv)
{
return iwl_debug_level;
}
#endif
static inline struct ieee80211_hdr *iwl_tx_queue_get_hdr(struct iwl_priv *priv,
int txq_id, int idx)
{
if (priv->txq[txq_id].txb[idx].skb[0])
return (struct ieee80211_hdr *)priv->txq[txq_id].
txb[idx].skb[0]->data;
return NULL;
}
static inline int iwl_is_associated(struct iwl_priv *priv)
{
return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
}
static inline int is_channel_valid(const struct iwl_channel_info *ch_info)
{
if (ch_info == NULL)
return 0;
return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
}
static inline int is_channel_radar(const struct iwl_channel_info *ch_info)
{
return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
}
static inline u8 is_channel_a_band(const struct iwl_channel_info *ch_info)
{
return ch_info->band == IEEE80211_BAND_5GHZ;
}
static inline u8 is_channel_bg_band(const struct iwl_channel_info *ch_info)
{
return ch_info->band == IEEE80211_BAND_2GHZ;
}
static inline int is_channel_passive(const struct iwl_channel_info *ch)
{
return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
}
static inline int is_channel_ibss(const struct iwl_channel_info *ch)
{
return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
}
static inline void __iwl_free_pages(struct iwl_priv *priv, struct page *page)
{
__free_pages(page, priv->hw_params.rx_page_order);
priv->alloc_rxb_page--;
}
static inline void iwl_free_pages(struct iwl_priv *priv, unsigned long page)
{
free_pages(page, priv->hw_params.rx_page_order);
priv->alloc_rxb_page--;
}
#endif /* __iwl_dev_h__ */
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