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alistair23-linux/drivers/net/wireless/iwlegacy/common.h
Stanislaw Gruszka 997bc71a36 iwl4965: disable 8K A-MSDU by default 
iwlegacy version of this iwlwifi patch:

commit aed7d9ac18
Author: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date:   Wed Feb 20 11:33:00 2013 +0200

    iwlwifi: disable 8K A-MSDU by default

    Supporting 8K A-MSDU means that we need to allocate order 1
    pages for every Rx packet. Even when there is no traffic.
    This adds stress on the memory manager. The handling of
    compound pages is also less trivial for the memory manager
    and not using them will make the allocation code run faster
    although I didn't really measure.
    Eric also pointed out that having huge buffers with little
    data in them is not very nice towards the TCP stack since
    the truesize of the skb is huge. This doesn't allow TCP
    to have a big Rx window.
    See https://patchwork.kernel.org/patch/2167711/ for details.

    Note that very few vendors will actually send A-MSDU.
    Disable this feature by default.

    Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
    Signed-off-by: Johannes Berg <johannes.berg@intel.com>

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-03-04 13:28:36 -05:00

3084 lines
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/******************************************************************************
*
* Copyright(c) 2003 - 2011 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
*
*****************************************************************************/
#ifndef __il_core_h__
#define __il_core_h__
#include <linux/interrupt.h>
#include <linux/pci.h> /* for struct pci_device_id */
#include <linux/kernel.h>
#include <linux/leds.h>
#include <linux/wait.h>
#include <linux/io.h>
#include <net/mac80211.h>
#include <net/ieee80211_radiotap.h>
#include "commands.h"
#include "csr.h"
#include "prph.h"
struct il_host_cmd;
struct il_cmd;
struct il_tx_queue;
#define IL_ERR(f, a...) dev_err(&il->pci_dev->dev, f, ## a)
#define IL_WARN(f, a...) dev_warn(&il->pci_dev->dev, f, ## a)
#define IL_INFO(f, a...) dev_info(&il->pci_dev->dev, f, ## a)
#define RX_QUEUE_SIZE 256
#define RX_QUEUE_MASK 255
#define RX_QUEUE_SIZE_LOG 8
/*
* RX related structures and functions
*/
#define RX_FREE_BUFFERS 64
#define RX_LOW_WATERMARK 8
#define U32_PAD(n) ((4-(n))&0x3)
/* CT-KILL constants */
#define CT_KILL_THRESHOLD_LEGACY 110 /* 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 stats 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 IL_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 il_rx_buf {
dma_addr_t page_dma;
struct page *page;
struct list_head list;
};
#define rxb_addr(r) page_address(r->page)
/* defined below */
struct il_device_cmd;
struct il_cmd_meta {
/* only for SYNC commands, iff the reply skb is wanted */
struct il_host_cmd *source;
/*
* only for ASYNC commands
* (which is somewhat stupid -- look at common.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 il_priv *il, struct il_device_cmd *cmd,
struct il_rx_pkt *pkt);
/* The CMD_SIZE_HUGE flag bit indicates that the command
* structure is stored at the end of the shared queue memory. */
u32 flags;
DEFINE_DMA_UNMAP_ADDR(mapping);
DEFINE_DMA_UNMAP_LEN(len);
};
/*
* Generic queue structure
*
* Contains common data for Rx and Tx queues
*/
struct il_queue {
int n_bd; /* number of BDs in this queue */
int write_ptr; /* 1-st empty entry (idx) host_w */
int read_ptr; /* last used entry (idx) host_r */
/* use for monitoring and recovering the stuck queue */
dma_addr_t dma_addr; /* physical addr for BD's */
int n_win; /* safe queue win */
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 */
};
/**
* struct il_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
* @skbs: array of per-TFD socket buffer pointers
* @time_stamp: time (in jiffies) of last read_ptr change
* @need_update: indicates need to update read/write idx
* @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 il_tx_queue {
struct il_queue q;
void *tfds;
struct il_device_cmd **cmd;
struct il_cmd_meta *meta;
struct sk_buff **skbs;
unsigned long time_stamp;
u8 need_update;
u8 sched_retry;
u8 active;
u8 swq_id;
};
/*
* EEPROM access time values:
*
* Driver initiates EEPROM read by writing byte address << 1 to CSR_EEPROM_REG.
* Driver then polls CSR_EEPROM_REG for CSR_EEPROM_REG_READ_VALID_MSK (0x1).
* When polling, wait 10 uSec between polling loops, up to a maximum 5000 uSec.
* Driver reads 16-bit value from bits 31-16 of CSR_EEPROM_REG.
*/
#define IL_EEPROM_ACCESS_TIMEOUT 5000 /* uSec */
#define IL_EEPROM_SEM_TIMEOUT 10 /* microseconds */
#define IL_EEPROM_SEM_RETRY_LIMIT 1000 /* number of attempts (not time) */
/*
* Regulatory channel usage flags in EEPROM struct il4965_eeprom_channel.flags.
*
* IBSS and/or AP operation is allowed *only* on those channels with
* (VALID && IBSS && ACTIVE && !RADAR). This restriction is in place because
* RADAR detection is not supported by the 4965 driver, but is a
* requirement for establishing a new network for legal operation on channels
* requiring RADAR detection or restricting ACTIVE scanning.
*
* NOTE: "WIDE" flag does not indicate anything about "HT40" 40 MHz channels.
* It only indicates that 20 MHz channel use is supported; HT40 channel
* usage is indicated by a separate set of regulatory flags for each
* HT40 channel pair.
*
* NOTE: Using a channel inappropriately will result in a uCode error!
*/
#define IL_NUM_TX_CALIB_GROUPS 5
enum {
EEPROM_CHANNEL_VALID = (1 << 0), /* usable for this SKU/geo */
EEPROM_CHANNEL_IBSS = (1 << 1), /* usable as an IBSS channel */
/* Bit 2 Reserved */
EEPROM_CHANNEL_ACTIVE = (1 << 3), /* active scanning allowed */
EEPROM_CHANNEL_RADAR = (1 << 4), /* radar detection required */
EEPROM_CHANNEL_WIDE = (1 << 5), /* 20 MHz channel okay */
/* Bit 6 Reserved (was Narrow Channel) */
EEPROM_CHANNEL_DFS = (1 << 7), /* dynamic freq selection candidate */
};
/* SKU Capabilities */
/* 3945 only */
#define EEPROM_SKU_CAP_SW_RF_KILL_ENABLE (1 << 0)
#define EEPROM_SKU_CAP_HW_RF_KILL_ENABLE (1 << 1)
/* *regulatory* channel data format in eeprom, one for each channel.
* There are separate entries for HT40 (40 MHz) vs. normal (20 MHz) channels. */
struct il_eeprom_channel {
u8 flags; /* EEPROM_CHANNEL_* flags copied from EEPROM */
s8 max_power_avg; /* max power (dBm) on this chnl, limit 31 */
} __packed;
/* 3945 Specific */
#define EEPROM_3945_EEPROM_VERSION (0x2f)
/* 4965 has two radio transmitters (and 3 radio receivers) */
#define EEPROM_TX_POWER_TX_CHAINS (2)
/* 4965 has room for up to 8 sets of txpower calibration data */
#define EEPROM_TX_POWER_BANDS (8)
/* 4965 factory calibration measures txpower gain settings for
* each of 3 target output levels */
#define EEPROM_TX_POWER_MEASUREMENTS (3)
/* 4965 Specific */
/* 4965 driver does not work with txpower calibration version < 5 */
#define EEPROM_4965_TX_POWER_VERSION (5)
#define EEPROM_4965_EEPROM_VERSION (0x2f)
#define EEPROM_4965_CALIB_VERSION_OFFSET (2*0xB6) /* 2 bytes */
#define EEPROM_4965_CALIB_TXPOWER_OFFSET (2*0xE8) /* 48 bytes */
#define EEPROM_4965_BOARD_REVISION (2*0x4F) /* 2 bytes */
#define EEPROM_4965_BOARD_PBA (2*0x56+1) /* 9 bytes */
/* 2.4 GHz */
extern const u8 il_eeprom_band_1[14];
/*
* factory calibration data for one txpower level, on one channel,
* measured on one of the 2 tx chains (radio transmitter and associated
* antenna). EEPROM contains:
*
* 1) Temperature (degrees Celsius) of device when measurement was made.
*
* 2) Gain table idx used to achieve the target measurement power.
* This refers to the "well-known" gain tables (see 4965.h).
*
* 3) Actual measured output power, in half-dBm ("34" = 17 dBm).
*
* 4) RF power amplifier detector level measurement (not used).
*/
struct il_eeprom_calib_measure {
u8 temperature; /* Device temperature (Celsius) */
u8 gain_idx; /* Index into gain table */
u8 actual_pow; /* Measured RF output power, half-dBm */
s8 pa_det; /* Power amp detector level (not used) */
} __packed;
/*
* measurement set for one channel. EEPROM contains:
*
* 1) Channel number measured
*
* 2) Measurements for each of 3 power levels for each of 2 radio transmitters
* (a.k.a. "tx chains") (6 measurements altogether)
*/
struct il_eeprom_calib_ch_info {
u8 ch_num;
struct il_eeprom_calib_measure
measurements[EEPROM_TX_POWER_TX_CHAINS]
[EEPROM_TX_POWER_MEASUREMENTS];
} __packed;
/*
* txpower subband info.
*
* For each frequency subband, EEPROM contains the following:
*
* 1) First and last channels within range of the subband. "0" values
* indicate that this sample set is not being used.
*
* 2) Sample measurement sets for 2 channels close to the range endpoints.
*/
struct il_eeprom_calib_subband_info {
u8 ch_from; /* channel number of lowest channel in subband */
u8 ch_to; /* channel number of highest channel in subband */
struct il_eeprom_calib_ch_info ch1;
struct il_eeprom_calib_ch_info ch2;
} __packed;
/*
* txpower calibration info. EEPROM contains:
*
* 1) Factory-measured saturation power levels (maximum levels at which
* tx power amplifier can output a signal without too much distortion).
* There is one level for 2.4 GHz band and one for 5 GHz band. These
* values apply to all channels within each of the bands.
*
* 2) Factory-measured power supply voltage level. This is assumed to be
* constant (i.e. same value applies to all channels/bands) while the
* factory measurements are being made.
*
* 3) Up to 8 sets of factory-measured txpower calibration values.
* These are for different frequency ranges, since txpower gain
* characteristics of the analog radio circuitry vary with frequency.
*
* Not all sets need to be filled with data;
* struct il_eeprom_calib_subband_info contains range of channels
* (0 if unused) for each set of data.
*/
struct il_eeprom_calib_info {
u8 saturation_power24; /* half-dBm (e.g. "34" = 17 dBm) */
u8 saturation_power52; /* half-dBm */
__le16 voltage; /* signed */
struct il_eeprom_calib_subband_info band_info[EEPROM_TX_POWER_BANDS];
} __packed;
/* General */
#define EEPROM_DEVICE_ID (2*0x08) /* 2 bytes */
#define EEPROM_MAC_ADDRESS (2*0x15) /* 6 bytes */
#define EEPROM_BOARD_REVISION (2*0x35) /* 2 bytes */
#define EEPROM_BOARD_PBA_NUMBER (2*0x3B+1) /* 9 bytes */
#define EEPROM_VERSION (2*0x44) /* 2 bytes */
#define EEPROM_SKU_CAP (2*0x45) /* 2 bytes */
#define EEPROM_OEM_MODE (2*0x46) /* 2 bytes */
#define EEPROM_WOWLAN_MODE (2*0x47) /* 2 bytes */
#define EEPROM_RADIO_CONFIG (2*0x48) /* 2 bytes */
#define EEPROM_NUM_MAC_ADDRESS (2*0x4C) /* 2 bytes */
/* The following masks are to be applied on EEPROM_RADIO_CONFIG */
#define EEPROM_RF_CFG_TYPE_MSK(x) (x & 0x3) /* bits 0-1 */
#define EEPROM_RF_CFG_STEP_MSK(x) ((x >> 2) & 0x3) /* bits 2-3 */
#define EEPROM_RF_CFG_DASH_MSK(x) ((x >> 4) & 0x3) /* bits 4-5 */
#define EEPROM_RF_CFG_PNUM_MSK(x) ((x >> 6) & 0x3) /* bits 6-7 */
#define EEPROM_RF_CFG_TX_ANT_MSK(x) ((x >> 8) & 0xF) /* bits 8-11 */
#define EEPROM_RF_CFG_RX_ANT_MSK(x) ((x >> 12) & 0xF) /* bits 12-15 */
#define EEPROM_3945_RF_CFG_TYPE_MAX 0x0
#define EEPROM_4965_RF_CFG_TYPE_MAX 0x1
/*
* Per-channel regulatory data.
*
* Each channel that *might* be supported by iwl has a fixed location
* in EEPROM containing EEPROM_CHANNEL_* usage flags (LSB) and max regulatory
* txpower (MSB).
*
* Entries immediately below are for 20 MHz channel width. HT40 (40 MHz)
* channels (only for 4965, not supported by 3945) appear later in the EEPROM.
*
* 2.4 GHz channels 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
*/
#define EEPROM_REGULATORY_SKU_ID (2*0x60) /* 4 bytes */
#define EEPROM_REGULATORY_BAND_1 (2*0x62) /* 2 bytes */
#define EEPROM_REGULATORY_BAND_1_CHANNELS (2*0x63) /* 28 bytes */
/*
* 4.9 GHz channels 183, 184, 185, 187, 188, 189, 192, 196,
* 5.0 GHz channels 7, 8, 11, 12, 16
* (4915-5080MHz) (none of these is ever supported)
*/
#define EEPROM_REGULATORY_BAND_2 (2*0x71) /* 2 bytes */
#define EEPROM_REGULATORY_BAND_2_CHANNELS (2*0x72) /* 26 bytes */
/*
* 5.2 GHz channels 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64
* (5170-5320MHz)
*/
#define EEPROM_REGULATORY_BAND_3 (2*0x7F) /* 2 bytes */
#define EEPROM_REGULATORY_BAND_3_CHANNELS (2*0x80) /* 24 bytes */
/*
* 5.5 GHz channels 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140
* (5500-5700MHz)
*/
#define EEPROM_REGULATORY_BAND_4 (2*0x8C) /* 2 bytes */
#define EEPROM_REGULATORY_BAND_4_CHANNELS (2*0x8D) /* 22 bytes */
/*
* 5.7 GHz channels 145, 149, 153, 157, 161, 165
* (5725-5825MHz)
*/
#define EEPROM_REGULATORY_BAND_5 (2*0x98) /* 2 bytes */
#define EEPROM_REGULATORY_BAND_5_CHANNELS (2*0x99) /* 12 bytes */
/*
* 2.4 GHz HT40 channels 1 (5), 2 (6), 3 (7), 4 (8), 5 (9), 6 (10), 7 (11)
*
* The channel listed is the center of the lower 20 MHz half of the channel.
* The overall center frequency is actually 2 channels (10 MHz) above that,
* and the upper half of each HT40 channel is centered 4 channels (20 MHz) away
* from the lower half; e.g. the upper half of HT40 channel 1 is channel 5,
* and the overall HT40 channel width centers on channel 3.
*
* NOTE: The RXON command uses 20 MHz channel numbers to specify the
* control channel to which to tune. RXON also specifies whether the
* control channel is the upper or lower half of a HT40 channel.
*
* NOTE: 4965 does not support HT40 channels on 2.4 GHz.
*/
#define EEPROM_4965_REGULATORY_BAND_24_HT40_CHANNELS (2*0xA0) /* 14 bytes */
/*
* 5.2 GHz HT40 channels 36 (40), 44 (48), 52 (56), 60 (64),
* 100 (104), 108 (112), 116 (120), 124 (128), 132 (136), 149 (153), 157 (161)
*/
#define EEPROM_4965_REGULATORY_BAND_52_HT40_CHANNELS (2*0xA8) /* 22 bytes */
#define EEPROM_REGULATORY_BAND_NO_HT40 (0)
int il_eeprom_init(struct il_priv *il);
void il_eeprom_free(struct il_priv *il);
const u8 *il_eeprom_query_addr(const struct il_priv *il, size_t offset);
u16 il_eeprom_query16(const struct il_priv *il, size_t offset);
int il_init_channel_map(struct il_priv *il);
void il_free_channel_map(struct il_priv *il);
const struct il_channel_info *il_get_channel_info(const struct il_priv *il,
enum ieee80211_band band,
u16 channel);
#define IL_NUM_SCAN_RATES (2)
struct il4965_channel_tgd_info {
u8 type;
s8 max_power;
};
struct il4965_channel_tgh_info {
s64 last_radar_time;
};
#define IL4965_MAX_RATE (33)
struct il3945_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[IL_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 idx must also be set. */
struct il3945_channel_power_info {
struct il3945_tx_power tpc; /* actual radio and DSP gain settings */
s8 power_table_idx; /* actual (compenst'd) idx into gain table */
s8 base_power_idx; /* gain idx 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 il3945_scan_power_info {
struct il3945_tx_power tpc; /* actual radio and DSP gain settings */
s8 power_table_idx; /* actual (compenst'd) idx 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 il_channel_info {
struct il4965_channel_tgd_info tgd;
struct il4965_channel_tgh_info tgh;
struct il_eeprom_channel eeprom; /* EEPROM regulatory limit */
struct il_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_idx; /* 0-4, maps channel to group1/2/3/4/5 */
u8 band_idx; /* 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 (idxes). */
struct il3945_channel_power_info power_info[IL4965_MAX_RATE];
/* Radio/DSP gain settings for each scan rate, for directed scans. */
struct il3945_scan_power_info scan_pwr_info[IL_NUM_SCAN_RATES];
};
#define IL_TX_FIFO_BK 0 /* shared */
#define IL_TX_FIFO_BE 1
#define IL_TX_FIFO_VI 2 /* shared */
#define IL_TX_FIFO_VO 3
#define IL_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 IL_MIN_NUM_QUEUES 10
#define IL_DEFAULT_CMD_QUEUE_NUM 4
#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 il_frame {
union {
struct ieee80211_hdr frame;
struct il_tx_beacon_cmd beacon;
u8 raw[IEEE80211_FRAME_LEN];
u8 cmd[360];
} u;
struct list_head list;
};
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),
CMD_MAPPED = (1 << 3),
};
#define DEF_CMD_PAYLOAD_SIZE 320
/**
* struct il_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 il_device_cmd {
struct il_cmd_header hdr; /* uCode API */
union {
u32 flags;
u8 val8;
u16 val16;
u32 val32;
struct il_tx_cmd tx;
u8 payload[DEF_CMD_PAYLOAD_SIZE];
} __packed cmd;
} __packed;
#define TFD_MAX_PAYLOAD_SIZE (sizeof(struct il_device_cmd))
struct il_host_cmd {
const void *data;
unsigned long reply_page;
void (*callback) (struct il_priv *il, struct il_device_cmd *cmd,
struct il_rx_pkt *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 il_rx_queue - Rx queue
* @bd: driver's pointer to buffer of receive buffer descriptors (rbd)
* @bd_dma: bus address of buffer of receive buffer descriptors (rbd)
* @read: Shared idx to newest available Rx buffer
* @write: Shared idx 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 idx
* @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 il_rx_bufs
*/
struct il_rx_queue {
__le32 *bd;
dma_addr_t bd_dma;
struct il_rx_buf pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
struct il_rx_buf *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 il_rb_status *rb_stts;
dma_addr_t rb_stts_dma;
spinlock_t lock;
};
#define IL_SUPPORTED_RATES_IE_LEN 8
#define MAX_TID_COUNT 9
#define IL_INVALID_RATE 0xFF
#define IL_INVALID_VALUE -1
/**
* struct il_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 win
* @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx win
* @bitmap1: High order, one bit for each frame pending ACK in Tx win
* @rate_n_flags: Rate at which Tx was attempted
*
* If C_TX indicates that aggregation was attempted, driver must wait
* for block ack (N_COMPRESSED_BA). This struct stores tx reply info
* until block ack arrives.
*/
struct il_ht_agg {
u16 txq_id;
u16 frame_count;
u16 wait_for_ba;
u16 start_idx;
u64 bitmap;
u32 rate_n_flags;
#define IL_AGG_OFF 0
#define IL_AGG_ON 1
#define IL_EMPTYING_HW_QUEUE_ADDBA 2
#define IL_EMPTYING_HW_QUEUE_DELBA 3
u8 state;
};
struct il_tid_data {
u16 seq_number; /* 4965 only */
u16 tfds_in_queue;
struct il_ht_agg agg;
};
struct il_hw_key {
u32 cipher;
int keylen;
u8 keyidx;
u8 key[32];
};
union il_ht_rate_supp {
u16 rates;
struct {
u8 siso_rate;
u8 mimo_rate;
};
};
#define CFG_HT_RX_AMPDU_FACTOR_8K (0x0)
#define CFG_HT_RX_AMPDU_FACTOR_16K (0x1)
#define CFG_HT_RX_AMPDU_FACTOR_32K (0x2)
#define CFG_HT_RX_AMPDU_FACTOR_64K (0x3)
#define CFG_HT_RX_AMPDU_FACTOR_DEF CFG_HT_RX_AMPDU_FACTOR_64K
#define CFG_HT_RX_AMPDU_FACTOR_MAX CFG_HT_RX_AMPDU_FACTOR_64K
#define CFG_HT_RX_AMPDU_FACTOR_MIN CFG_HT_RX_AMPDU_FACTOR_8K
/*
* Maximal MPDU density for TX aggregation
* 4 - 2us density
* 5 - 4us density
* 6 - 8us density
* 7 - 16us density
*/
#define CFG_HT_MPDU_DENSITY_2USEC (0x4)
#define CFG_HT_MPDU_DENSITY_4USEC (0x5)
#define CFG_HT_MPDU_DENSITY_8USEC (0x6)
#define CFG_HT_MPDU_DENSITY_16USEC (0x7)
#define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_4USEC
#define CFG_HT_MPDU_DENSITY_MAX CFG_HT_MPDU_DENSITY_16USEC
#define CFG_HT_MPDU_DENSITY_MIN (0x1)
struct il_ht_config {
bool single_chain_sufficient;
enum ieee80211_smps_mode smps; /* current smps mode */
};
/* QoS structures */
struct il_qos_info {
int qos_active;
struct il_qosparam_cmd def_qos_parm;
};
/*
* Structure should be accessed with sta_lock held. When station addition
* is in progress (IL_STA_UCODE_INPROGRESS) it is possible to access only
* the commands (il_addsta_cmd and il_link_quality_cmd) without
* sta_lock held.
*/
struct il_station_entry {
struct il_addsta_cmd sta;
struct il_tid_data tid[MAX_TID_COUNT];
u8 used;
struct il_hw_key keyinfo;
struct il_link_quality_cmd *lq;
};
struct il_station_priv_common {
u8 sta_id;
};
/**
* struct il_vif_priv - driver's ilate per-interface information
*
* When mac80211 allocates a virtual interface, it can allocate
* space for us to put data into.
*/
struct il_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 */
};
/* uCode file layout */
struct il_ucode_header {
__le32 ver; /* major/minor/API/serial */
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 il4965_ibss_seq {
u8 mac[ETH_ALEN];
u16 seq_num;
u16 frag_num;
unsigned long packet_time;
struct list_head list;
};
struct il_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 il_hw_params
* @bcast_id: f/w broadcast station ID
* @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:
* @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
* @beacon_time_tsf_bits: number of valid tsf bits for beacon time
* @struct il_sensitivity_ranges: range of sensitivity values
*/
struct il_hw_params {
u8 bcast_id;
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 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 */
u16 beacon_time_tsf_bits;
const struct il_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 --
* il_ <-- Is part of iwlwifi
* iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
* il4965_bg_ <-- Called from work queue context
* il4965_mac_ <-- mac80211 callback
*
****************************************************************************/
void il4965_update_chain_flags(struct il_priv *il);
extern const u8 il_bcast_addr[ETH_ALEN];
int il_queue_space(const struct il_queue *q);
static inline int
il_queue_used(const struct il_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
il_get_cmd_idx(struct il_queue *q, u32 idx, 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_win; /* must be power of 2 */
/* Otherwise, use normal size buffers */
return idx & (q->n_win - 1);
}
struct il_dma_ptr {
dma_addr_t dma;
void *addr;
size_t size;
};
#define IL_OPERATION_MODE_AUTO 0
#define IL_OPERATION_MODE_HT_ONLY 1
#define IL_OPERATION_MODE_MIXED 2
#define IL_OPERATION_MODE_20MHZ 3
#define IL_TX_CRC_SIZE 4
#define IL_TX_DELIMITER_SIZE 4
#define TX_POWER_IL_ILLEGAL_VOLTAGE -10000
/* Sensitivity and chain noise calibration */
#define INITIALIZATION_VALUE 0xFFFF
#define IL4965_CAL_NUM_BEACONS 20
#define IL_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 il4965_false_alarm_state {
IL_FA_TOO_MANY = 0,
IL_FA_TOO_FEW = 1,
IL_FA_GOOD_RANGE = 2,
};
enum il4965_chain_noise_state {
IL_CHAIN_NOISE_ALIVE = 0, /* must be 0 */
IL_CHAIN_NOISE_ACCUMULATE,
IL_CHAIN_NOISE_CALIBRATED,
IL_CHAIN_NOISE_DONE,
};
enum ucode_type {
UCODE_NONE = 0,
UCODE_INIT,
UCODE_RT
};
/* Sensitivity calib data */
struct il_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 il_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 IL_TRAFFIC_ENTRIES (256)
#define IL_TRAFFIC_ENTRY_SIZE (64)
enum {
MEASUREMENT_READY = (1 << 0),
MEASUREMENT_ACTIVE = (1 << 1),
};
/* interrupt stats */
struct isr_stats {
u32 hw;
u32 sw;
u32 err_code;
u32 sch;
u32 alive;
u32 rfkill;
u32 ctkill;
u32 wakeup;
u32 rx;
u32 handlers[IL_CN_MAX];
u32 tx;
u32 unhandled;
};
/* management stats */
enum il_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 stats */
enum il_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 {
#ifdef CONFIG_IWLEGACY_DEBUGFS
u32 mgmt[MANAGEMENT_MAX];
u32 ctrl[CONTROL_MAX];
u32 data_cnt;
u64 data_bytes;
#endif
};
/*
* 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 IL_HOST_INT_TIMEOUT_MAX (0xFF)
#define IL_HOST_INT_TIMEOUT_DEF (0x40)
#define IL_HOST_INT_TIMEOUT_MIN (0x0)
#define IL_HOST_INT_CALIB_TIMEOUT_MAX (0xFF)
#define IL_HOST_INT_CALIB_TIMEOUT_DEF (0x10)
#define IL_HOST_INT_CALIB_TIMEOUT_MIN (0x0)
#define IL_DELAY_NEXT_FORCE_FW_RELOAD (HZ*5)
/* TX queue watchdog timeouts in mSecs */
#define IL_DEF_WD_TIMEOUT (2000)
#define IL_LONG_WD_TIMEOUT (10000)
#define IL_MAX_WD_TIMEOUT (120000)
struct il_force_reset {
int reset_request_count;
int reset_success_count;
int reset_reject_count;
unsigned long reset_duration;
unsigned long last_force_reset_jiffies;
};
/* extend beacon time format bit shifting */
/*
* for _3945 devices
* bits 31:24 - extended
* bits 23:0 - interval
*/
#define IL3945_EXT_BEACON_TIME_POS 24
/*
* for _4965 devices
* bits 31:22 - extended
* bits 21:0 - interval
*/
#define IL4965_EXT_BEACON_TIME_POS 22
struct il_rxon_context {
struct ieee80211_vif *vif;
};
struct il_power_mgr {
struct il_powertable_cmd sleep_cmd;
struct il_powertable_cmd sleep_cmd_next;
int debug_sleep_level_override;
bool pci_pm;
bool ps_disabled;
};
struct il_priv {
struct ieee80211_hw *hw;
struct ieee80211_channel *ieee_channels;
struct ieee80211_rate *ieee_rates;
struct il_cfg *cfg;
const struct il_ops *ops;
#ifdef CONFIG_IWLEGACY_DEBUGFS
const struct il_debugfs_ops *debugfs_ops;
#endif
/* temporary frame storage list */
struct list_head free_frames;
int frames_count;
enum ieee80211_band band;
int alloc_rxb_page;
void (*handlers[IL_CN_MAX]) (struct il_priv *il,
struct il_rx_buf *rxb);
struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
/* spectrum measurement report caching */
struct il_spectrum_notification measure_report;
u8 measurement_status;
/* ucode beacon time */
u32 ucode_beacon_time;
int missed_beacon_threshold;
/* track IBSS manager (last beacon) status */
u32 ibss_manager;
/* force reset */
struct il_force_reset force_reset;
/* we allocate array of il_channel_info for NIC's valid channels.
* Access via channel # using indirect idx array */
struct il_channel_info *channel_info; /* channel info array */
u8 channel_count; /* # of channels */
/* thermal calibration */
s32 temperature; /* degrees Kelvin */
s32 last_temperature;
/* 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;
struct ieee80211_vif *scan_vif;
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;
/* 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;
/* command queue number */
u8 cmd_queue;
/* max number of station keys */
u8 sta_key_max_num;
/* EEPROM MAC addresses */
struct mac_address addresses[1];
/* uCode images, save to reload in case of failure */
int fw_idx; /* firmware we're trying to load */
u32 ucode_ver; /* version of ucode, copy of
il_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 ieee80211_vif *vif;
struct il_qos_info qos_data;
struct {
bool enabled;
bool is_40mhz;
bool non_gf_sta_present;
u8 protection;
u8 extension_chan_offset;
} ht;
/*
* We declare this const so it can only be
* changed via explicit cast within the
* routines that actually update the physical
* hardware.
*/
const struct il_rxon_cmd active;
struct il_rxon_cmd staging;
struct il_rxon_time_cmd timing;
__le16 switch_channel;
/* 1st responses from initialize and runtime uCode images.
* _4965's initialize alive response contains some calibration data. */
struct il_init_alive_resp card_alive_init;
struct il_alive_resp card_alive;
u16 active_rate;
u8 start_calib;
struct il_sensitivity_data sensitivity_data;
struct il_chain_noise_data chain_noise_data;
__le16 sensitivity_tbl[HD_TBL_SIZE];
struct il_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 il_rx_queue rxq;
struct il_tx_queue *txq;
unsigned long txq_ctx_active_msk;
struct il_dma_ptr kw; /* keep warm address */
struct il_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_stats isr_stats;
struct il_power_mgr power_data;
/* context information */
u8 bssid[ETH_ALEN]; /* used only on 3945 but filled by core */
/* station table variables */
/* Note: if lock and sta_lock are needed, lock must be acquired first */
spinlock_t sta_lock;
int num_stations;
struct il_station_entry stations[IL_STATION_COUNT];
unsigned long ucode_key_table;
/* queue refcounts */
#define IL_MAX_HW_QUEUES 32
unsigned long queue_stopped[BITS_TO_LONGS(IL_MAX_HW_QUEUES)];
#define IL_STOP_REASON_PASSIVE 0
unsigned long stop_reason;
/* 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;
struct il_eeprom_calib_info *calib_info;
enum nl80211_iftype iw_mode;
/* Last Rx'd beacon timestamp */
u64 timestamp;
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 il3945_notif_stats stats;
#ifdef CONFIG_IWLEGACY_DEBUGFS
struct il3945_notif_stats accum_stats;
struct il3945_notif_stats delta_stats;
struct il3945_notif_stats max_delta;
#endif
u32 sta_supp_rates;
int last_rx_rssi; /* From Rx packet stats */
/* 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 il3945_clip_group clip_groups[5];
} _3945;
#endif
#if defined(CONFIG_IWL4965) || defined(CONFIG_IWL4965_MODULE)
struct {
struct il_rx_phy_res last_phy_res;
bool last_phy_res_valid;
u32 ampdu_ref;
struct completion firmware_loading_complete;
/*
* chain noise reset and gain commands are the
* two extra calibration commands follows the standard
* phy calibration commands
*/
u8 phy_calib_chain_noise_reset_cmd;
u8 phy_calib_chain_noise_gain_cmd;
u8 key_mapping_keys;
struct il_wep_key wep_keys[WEP_KEYS_MAX];
struct il_notif_stats stats;
#ifdef CONFIG_IWLEGACY_DEBUGFS
struct il_notif_stats accum_stats;
struct il_notif_stats delta_stats;
struct il_notif_stats max_delta;
#endif
} _4965;
#endif
};
struct il_hw_params hw_params;
u32 inta_mask;
struct workqueue_struct *workqueue;
struct work_struct restart;
struct work_struct scan_completed;
struct work_struct rx_replenish;
struct work_struct abort_scan;
bool beacon_enabled;
struct sk_buff *beacon_skb;
struct work_struct tx_flush;
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_next;
#ifdef CONFIG_IWLEGACY_DEBUG
/* debugging info */
u32 debug_level; /* per device debugging will override global
il_debug_level if set */
#endif /* CONFIG_IWLEGACY_DEBUG */
#ifdef CONFIG_IWLEGACY_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;
bool disable_ht40;
#endif /* CONFIG_IWLEGACY_DEBUGFS */
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 stats_periodic;
struct timer_list watchdog;
bool hw_ready;
struct led_classdev led;
unsigned long blink_on, blink_off;
bool led_registered;
}; /*il_priv */
static inline void
il_txq_ctx_activate(struct il_priv *il, int txq_id)
{
set_bit(txq_id, &il->txq_ctx_active_msk);
}
static inline void
il_txq_ctx_deactivate(struct il_priv *il, int txq_id)
{
clear_bit(txq_id, &il->txq_ctx_active_msk);
}
static inline int
il_is_associated(struct il_priv *il)
{
return (il->active.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
}
static inline int
il_is_any_associated(struct il_priv *il)
{
return il_is_associated(il);
}
static inline int
il_is_channel_valid(const struct il_channel_info *ch_info)
{
if (ch_info == NULL)
return 0;
return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
}
static inline int
il_is_channel_radar(const struct il_channel_info *ch_info)
{
return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
}
static inline u8
il_is_channel_a_band(const struct il_channel_info *ch_info)
{
return ch_info->band == IEEE80211_BAND_5GHZ;
}
static inline int
il_is_channel_passive(const struct il_channel_info *ch)
{
return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
}
static inline int
il_is_channel_ibss(const struct il_channel_info *ch)
{
return (ch->flags & EEPROM_CHANNEL_IBSS) ? 1 : 0;
}
static inline void
__il_free_pages(struct il_priv *il, struct page *page)
{
__free_pages(page, il->hw_params.rx_page_order);
il->alloc_rxb_page--;
}
static inline void
il_free_pages(struct il_priv *il, unsigned long page)
{
free_pages(page, il->hw_params.rx_page_order);
il->alloc_rxb_page--;
}
#define IWLWIFI_VERSION "in-tree:"
#define DRV_COPYRIGHT "Copyright(c) 2003-2011 Intel Corporation"
#define DRV_AUTHOR "<ilw@linux.intel.com>"
#define IL_PCI_DEVICE(dev, subdev, cfg) \
.vendor = PCI_VENDOR_ID_INTEL, .device = (dev), \
.subvendor = PCI_ANY_ID, .subdevice = (subdev), \
.driver_data = (kernel_ulong_t)&(cfg)
#define TIME_UNIT 1024
#define IL_SKU_G 0x1
#define IL_SKU_A 0x2
#define IL_SKU_N 0x8
#define IL_CMD(x) case x: return #x
/* Size of one Rx buffer in host DRAM */
#define IL_RX_BUF_SIZE_3K (3 * 1000) /* 3945 only */
#define IL_RX_BUF_SIZE_4K (4 * 1024)
#define IL_RX_BUF_SIZE_8K (8 * 1024)
#ifdef CONFIG_IWLEGACY_DEBUGFS
struct il_debugfs_ops {
ssize_t(*rx_stats_read) (struct file *file, char __user *user_buf,
size_t count, loff_t *ppos);
ssize_t(*tx_stats_read) (struct file *file, char __user *user_buf,
size_t count, loff_t *ppos);
ssize_t(*general_stats_read) (struct file *file,
char __user *user_buf, size_t count,
loff_t *ppos);
};
#endif
struct il_ops {
/* Handling TX */
void (*txq_update_byte_cnt_tbl) (struct il_priv *il,
struct il_tx_queue *txq,
u16 byte_cnt);
int (*txq_attach_buf_to_tfd) (struct il_priv *il,
struct il_tx_queue *txq, dma_addr_t addr,
u16 len, u8 reset, u8 pad);
void (*txq_free_tfd) (struct il_priv *il, struct il_tx_queue *txq);
int (*txq_init) (struct il_priv *il, struct il_tx_queue *txq);
/* alive notification after init uCode load */
void (*init_alive_start) (struct il_priv *il);
/* check validity of rtc data address */
int (*is_valid_rtc_data_addr) (u32 addr);
/* 1st ucode load */
int (*load_ucode) (struct il_priv *il);
void (*dump_nic_error_log) (struct il_priv *il);
int (*dump_fh) (struct il_priv *il, char **buf, bool display);
int (*set_channel_switch) (struct il_priv *il,
struct ieee80211_channel_switch *ch_switch);
/* power management */
int (*apm_init) (struct il_priv *il);
/* tx power */
int (*send_tx_power) (struct il_priv *il);
void (*update_chain_flags) (struct il_priv *il);
/* eeprom operations */
int (*eeprom_acquire_semaphore) (struct il_priv *il);
void (*eeprom_release_semaphore) (struct il_priv *il);
int (*rxon_assoc) (struct il_priv *il);
int (*commit_rxon) (struct il_priv *il);
void (*set_rxon_chain) (struct il_priv *il);
u16(*get_hcmd_size) (u8 cmd_id, u16 len);
u16(*build_addsta_hcmd) (const struct il_addsta_cmd *cmd, u8 *data);
int (*request_scan) (struct il_priv *il, struct ieee80211_vif *vif);
void (*post_scan) (struct il_priv *il);
void (*post_associate) (struct il_priv *il);
void (*config_ap) (struct il_priv *il);
/* station management */
int (*update_bcast_stations) (struct il_priv *il);
int (*manage_ibss_station) (struct il_priv *il,
struct ieee80211_vif *vif, bool add);
int (*send_led_cmd) (struct il_priv *il, struct il_led_cmd *led_cmd);
};
struct il_mod_params {
int sw_crypto; /* def: 0 = using hardware encryption */
int disable_hw_scan; /* def: 0 = use h/w scan */
int num_of_queues; /* def: HW dependent */
int disable_11n; /* def: 0 = 11n capabilities enabled */
int amsdu_size_8K; /* def: 0 = disable 8K amsdu size */
int antenna; /* def: 0 = both antennas (use diversity) */
int restart_fw; /* def: 1 = restart firmware */
};
#define IL_LED_SOLID 11
#define IL_DEF_LED_INTRVL cpu_to_le32(1000)
#define IL_LED_ACTIVITY (0<<1)
#define IL_LED_LINK (1<<1)
/*
* LED mode
* IL_LED_DEFAULT: use device default
* IL_LED_RF_STATE: turn LED on/off based on RF state
* LED ON = RF ON
* LED OFF = RF OFF
* IL_LED_BLINK: adjust led blink rate based on blink table
*/
enum il_led_mode {
IL_LED_DEFAULT,
IL_LED_RF_STATE,
IL_LED_BLINK,
};
void il_leds_init(struct il_priv *il);
void il_leds_exit(struct il_priv *il);
/**
* struct il_cfg
* @fw_name_pre: Firmware filename prefix. The api version and extension
* (.ucode) will be added to filename before loading from disk. The
* filename is constructed as fw_name_pre<api>.ucode.
* @ucode_api_max: Highest version of uCode API supported by driver.
* @ucode_api_min: Lowest version of uCode API supported by driver.
* @scan_antennas: available antenna for scan operation
* @led_mode: 0=blinking, 1=On(RF On)/Off(RF Off)
*
* We enable the driver to be backward compatible wrt API version. The
* driver specifies which APIs it supports (with @ucode_api_max being the
* highest and @ucode_api_min the lowest). Firmware will only be loaded if
* it has a supported API version. The firmware's API version will be
* stored in @il_priv, enabling the driver to make runtime changes based
* on firmware version used.
*
* For example,
* if (IL_UCODE_API(il->ucode_ver) >= 2) {
* Driver interacts with Firmware API version >= 2.
* } else {
* Driver interacts with Firmware API version 1.
* }
*
* The ideal usage of this infrastructure is to treat a new ucode API
* release as a new hardware revision. That is, through utilizing the
* il_hcmd_utils_ops etc. we accommodate different command structures
* and flows between hardware versions as well as their API
* versions.
*
*/
struct il_cfg {
/* params specific to an individual device within a device family */
const char *name;
const char *fw_name_pre;
const unsigned int ucode_api_max;
const unsigned int ucode_api_min;
u8 valid_tx_ant;
u8 valid_rx_ant;
unsigned int sku;
u16 eeprom_ver;
u16 eeprom_calib_ver;
/* module based parameters which can be set from modprobe cmd */
const struct il_mod_params *mod_params;
/* params not likely to change within a device family */
struct il_base_params *base_params;
/* params likely to change within a device family */
u8 scan_rx_antennas[IEEE80211_NUM_BANDS];
enum il_led_mode led_mode;
int eeprom_size;
int num_of_queues; /* def: HW dependent */
int num_of_ampdu_queues; /* def: HW dependent */
/* for il_apm_init() */
u32 pll_cfg_val;
bool set_l0s;
bool use_bsm;
u16 led_compensation;
int chain_noise_num_beacons;
unsigned int wd_timeout;
bool temperature_kelvin;
const bool ucode_tracing;
const bool sensitivity_calib_by_driver;
const bool chain_noise_calib_by_driver;
const u32 regulatory_bands[7];
};
/***************************
* L i b *
***************************/
int il_mac_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
u16 queue, const struct ieee80211_tx_queue_params *params);
int il_mac_tx_last_beacon(struct ieee80211_hw *hw);
void il_set_rxon_hwcrypto(struct il_priv *il, int hw_decrypt);
int il_check_rxon_cmd(struct il_priv *il);
int il_full_rxon_required(struct il_priv *il);
int il_set_rxon_channel(struct il_priv *il, struct ieee80211_channel *ch);
void il_set_flags_for_band(struct il_priv *il, enum ieee80211_band band,
struct ieee80211_vif *vif);
u8 il_get_single_channel_number(struct il_priv *il, enum ieee80211_band band);
void il_set_rxon_ht(struct il_priv *il, struct il_ht_config *ht_conf);
bool il_is_ht40_tx_allowed(struct il_priv *il,
struct ieee80211_sta_ht_cap *ht_cap);
void il_connection_init_rx_config(struct il_priv *il);
void il_set_rate(struct il_priv *il);
int il_set_decrypted_flag(struct il_priv *il, struct ieee80211_hdr *hdr,
u32 decrypt_res, struct ieee80211_rx_status *stats);
void il_irq_handle_error(struct il_priv *il);
int il_mac_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif);
void il_mac_remove_interface(struct ieee80211_hw *hw,
struct ieee80211_vif *vif);
int il_mac_change_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
enum nl80211_iftype newtype, bool newp2p);
void il_mac_flush(struct ieee80211_hw *hw, u32 queues, bool drop);
int il_alloc_txq_mem(struct il_priv *il);
void il_free_txq_mem(struct il_priv *il);
#ifdef CONFIG_IWLEGACY_DEBUGFS
void il_update_stats(struct il_priv *il, bool is_tx, __le16 fc, u16 len);
#else
static inline void
il_update_stats(struct il_priv *il, bool is_tx, __le16 fc, u16 len)
{
}
#endif
/*****************************************************
* Handlers
***************************************************/
void il_hdl_pm_sleep(struct il_priv *il, struct il_rx_buf *rxb);
void il_hdl_pm_debug_stats(struct il_priv *il, struct il_rx_buf *rxb);
void il_hdl_error(struct il_priv *il, struct il_rx_buf *rxb);
void il_hdl_csa(struct il_priv *il, struct il_rx_buf *rxb);
/*****************************************************
* RX
******************************************************/
void il_cmd_queue_unmap(struct il_priv *il);
void il_cmd_queue_free(struct il_priv *il);
int il_rx_queue_alloc(struct il_priv *il);
void il_rx_queue_update_write_ptr(struct il_priv *il, struct il_rx_queue *q);
int il_rx_queue_space(const struct il_rx_queue *q);
void il_tx_cmd_complete(struct il_priv *il, struct il_rx_buf *rxb);
void il_hdl_spectrum_measurement(struct il_priv *il, struct il_rx_buf *rxb);
void il_recover_from_stats(struct il_priv *il, struct il_rx_pkt *pkt);
void il_chswitch_done(struct il_priv *il, bool is_success);
/*****************************************************
* TX
******************************************************/
void il_txq_update_write_ptr(struct il_priv *il, struct il_tx_queue *txq);
int il_tx_queue_init(struct il_priv *il, u32 txq_id);
void il_tx_queue_reset(struct il_priv *il, u32 txq_id);
void il_tx_queue_unmap(struct il_priv *il, int txq_id);
void il_tx_queue_free(struct il_priv *il, int txq_id);
void il_setup_watchdog(struct il_priv *il);
/*****************************************************
* TX power
****************************************************/
int il_set_tx_power(struct il_priv *il, s8 tx_power, bool force);
/*******************************************************************************
* Rate
******************************************************************************/
u8 il_get_lowest_plcp(struct il_priv *il);
/*******************************************************************************
* Scanning
******************************************************************************/
void il_init_scan_params(struct il_priv *il);
int il_scan_cancel(struct il_priv *il);
int il_scan_cancel_timeout(struct il_priv *il, unsigned long ms);
void il_force_scan_end(struct il_priv *il);
int il_mac_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
struct cfg80211_scan_request *req);
void il_internal_short_hw_scan(struct il_priv *il);
int il_force_reset(struct il_priv *il, bool external);
u16 il_fill_probe_req(struct il_priv *il, struct ieee80211_mgmt *frame,
const u8 *ta, const u8 *ie, int ie_len, int left);
void il_setup_rx_scan_handlers(struct il_priv *il);
u16 il_get_active_dwell_time(struct il_priv *il, enum ieee80211_band band,
u8 n_probes);
u16 il_get_passive_dwell_time(struct il_priv *il, enum ieee80211_band band,
struct ieee80211_vif *vif);
void il_setup_scan_deferred_work(struct il_priv *il);
void il_cancel_scan_deferred_work(struct il_priv *il);
/* For faster active scanning, scan will move to the next channel if fewer than
* PLCP_QUIET_THRESH packets are heard on this channel within
* ACTIVE_QUIET_TIME after sending probe request. This shortens the dwell
* time if it's a quiet channel (nothing responded to our probe, and there's
* no other traffic).
* Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */
#define IL_ACTIVE_QUIET_TIME cpu_to_le16(10) /* msec */
#define IL_PLCP_QUIET_THRESH cpu_to_le16(1) /* packets */
#define IL_SCAN_CHECK_WATCHDOG (HZ * 7)
/*****************************************************
* S e n d i n g H o s t C o m m a n d s *
*****************************************************/
const char *il_get_cmd_string(u8 cmd);
int __must_check il_send_cmd_sync(struct il_priv *il, struct il_host_cmd *cmd);
int il_send_cmd(struct il_priv *il, struct il_host_cmd *cmd);
int __must_check il_send_cmd_pdu(struct il_priv *il, u8 id, u16 len,
const void *data);
int il_send_cmd_pdu_async(struct il_priv *il, u8 id, u16 len, const void *data,
void (*callback) (struct il_priv *il,
struct il_device_cmd *cmd,
struct il_rx_pkt *pkt));
int il_enqueue_hcmd(struct il_priv *il, struct il_host_cmd *cmd);
/*****************************************************
* PCI *
*****************************************************/
void il_bg_watchdog(unsigned long data);
u32 il_usecs_to_beacons(struct il_priv *il, u32 usec, u32 beacon_interval);
__le32 il_add_beacon_time(struct il_priv *il, u32 base, u32 addon,
u32 beacon_interval);
#ifdef CONFIG_PM_SLEEP
extern const struct dev_pm_ops il_pm_ops;
#define IL_LEGACY_PM_OPS (&il_pm_ops)
#else /* !CONFIG_PM_SLEEP */
#define IL_LEGACY_PM_OPS NULL
#endif /* !CONFIG_PM_SLEEP */
/*****************************************************
* Error Handling Debugging
******************************************************/
void il4965_dump_nic_error_log(struct il_priv *il);
#ifdef CONFIG_IWLEGACY_DEBUG
void il_print_rx_config_cmd(struct il_priv *il);
#else
static inline void
il_print_rx_config_cmd(struct il_priv *il)
{
}
#endif
void il_clear_isr_stats(struct il_priv *il);
/*****************************************************
* GEOS
******************************************************/
int il_init_geos(struct il_priv *il);
void il_free_geos(struct il_priv *il);
/*************** DRIVER STATUS FUNCTIONS *****/
#define S_HCMD_ACTIVE 0 /* host command in progress */
/* 1 is unused (used to be S_HCMD_SYNC_ACTIVE) */
#define S_INT_ENABLED 2
#define S_RFKILL 3
#define S_CT_KILL 4
#define S_INIT 5
#define S_ALIVE 6
#define S_READY 7
#define S_TEMPERATURE 8
#define S_GEO_CONFIGURED 9
#define S_EXIT_PENDING 10
#define S_STATS 12
#define S_SCANNING 13
#define S_SCAN_ABORTING 14
#define S_SCAN_HW 15
#define S_POWER_PMI 16
#define S_FW_ERROR 17
#define S_CHANNEL_SWITCH_PENDING 18
static inline int
il_is_ready(struct il_priv *il)
{
/* The adapter is 'ready' if READY and GEO_CONFIGURED bits are
* set but EXIT_PENDING is not */
return test_bit(S_READY, &il->status) &&
test_bit(S_GEO_CONFIGURED, &il->status) &&
!test_bit(S_EXIT_PENDING, &il->status);
}
static inline int
il_is_alive(struct il_priv *il)
{
return test_bit(S_ALIVE, &il->status);
}
static inline int
il_is_init(struct il_priv *il)
{
return test_bit(S_INIT, &il->status);
}
static inline int
il_is_rfkill(struct il_priv *il)
{
return test_bit(S_RFKILL, &il->status);
}
static inline int
il_is_ctkill(struct il_priv *il)
{
return test_bit(S_CT_KILL, &il->status);
}
static inline int
il_is_ready_rf(struct il_priv *il)
{
if (il_is_rfkill(il))
return 0;
return il_is_ready(il);
}
void il_send_bt_config(struct il_priv *il);
int il_send_stats_request(struct il_priv *il, u8 flags, bool clear);
void il_apm_stop(struct il_priv *il);
void _il_apm_stop(struct il_priv *il);
int il_apm_init(struct il_priv *il);
int il_send_rxon_timing(struct il_priv *il);
static inline int
il_send_rxon_assoc(struct il_priv *il)
{
return il->ops->rxon_assoc(il);
}
static inline int
il_commit_rxon(struct il_priv *il)
{
return il->ops->commit_rxon(il);
}
static inline const struct ieee80211_supported_band *
il_get_hw_mode(struct il_priv *il, enum ieee80211_band band)
{
return il->hw->wiphy->bands[band];
}
/* mac80211 handlers */
int il_mac_config(struct ieee80211_hw *hw, u32 changed);
void il_mac_reset_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif);
void il_mac_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
struct ieee80211_bss_conf *bss_conf, u32 changes);
void il_tx_cmd_protection(struct il_priv *il, struct ieee80211_tx_info *info,
__le16 fc, __le32 *tx_flags);
irqreturn_t il_isr(int irq, void *data);
void il_set_bit(struct il_priv *p, u32 r, u32 m);
void il_clear_bit(struct il_priv *p, u32 r, u32 m);
bool _il_grab_nic_access(struct il_priv *il);
int _il_poll_bit(struct il_priv *il, u32 addr, u32 bits, u32 mask, int timeout);
int il_poll_bit(struct il_priv *il, u32 addr, u32 mask, int timeout);
u32 il_rd_prph(struct il_priv *il, u32 reg);
void il_wr_prph(struct il_priv *il, u32 addr, u32 val);
u32 il_read_targ_mem(struct il_priv *il, u32 addr);
void il_write_targ_mem(struct il_priv *il, u32 addr, u32 val);
static inline bool il_need_reclaim(struct il_priv *il, struct il_rx_pkt *pkt)
{
/* Reclaim a command buffer only if this packet is a response
* to a (driver-originated) command. If the packet (e.g. Rx frame)
* originated from uCode, there is no command buffer to reclaim.
* Ucode should set SEQ_RX_FRAME bit if ucode-originated, but
* apparently a few don't get set; catch them here.
*/
return !(pkt->hdr.sequence & SEQ_RX_FRAME) &&
pkt->hdr.cmd != N_STATS && pkt->hdr.cmd != C_TX &&
pkt->hdr.cmd != N_RX_PHY && pkt->hdr.cmd != N_RX &&
pkt->hdr.cmd != N_RX_MPDU && pkt->hdr.cmd != N_COMPRESSED_BA;
}
static inline void
_il_write8(struct il_priv *il, u32 ofs, u8 val)
{
writeb(val, il->hw_base + ofs);
}
#define il_write8(il, ofs, val) _il_write8(il, ofs, val)
static inline void
_il_wr(struct il_priv *il, u32 ofs, u32 val)
{
writel(val, il->hw_base + ofs);
}
static inline u32
_il_rd(struct il_priv *il, u32 ofs)
{
return readl(il->hw_base + ofs);
}
static inline void
_il_clear_bit(struct il_priv *il, u32 reg, u32 mask)
{
_il_wr(il, reg, _il_rd(il, reg) & ~mask);
}
static inline void
_il_set_bit(struct il_priv *il, u32 reg, u32 mask)
{
_il_wr(il, reg, _il_rd(il, reg) | mask);
}
static inline void
_il_release_nic_access(struct il_priv *il)
{
_il_clear_bit(il, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
/*
* In above we are reading CSR_GP_CNTRL register, what will flush any
* previous writes, but still want write, which clear MAC_ACCESS_REQ
* bit, be performed on PCI bus before any other writes scheduled on
* different CPUs (after we drop reg_lock).
*/
mmiowb();
}
static inline u32
il_rd(struct il_priv *il, u32 reg)
{
u32 value;
unsigned long reg_flags;
spin_lock_irqsave(&il->reg_lock, reg_flags);
_il_grab_nic_access(il);
value = _il_rd(il, reg);
_il_release_nic_access(il);
spin_unlock_irqrestore(&il->reg_lock, reg_flags);
return value;
}
static inline void
il_wr(struct il_priv *il, u32 reg, u32 value)
{
unsigned long reg_flags;
spin_lock_irqsave(&il->reg_lock, reg_flags);
if (likely(_il_grab_nic_access(il))) {
_il_wr(il, reg, value);
_il_release_nic_access(il);
}
spin_unlock_irqrestore(&il->reg_lock, reg_flags);
}
static inline u32
_il_rd_prph(struct il_priv *il, u32 reg)
{
_il_wr(il, HBUS_TARG_PRPH_RADDR, reg | (3 << 24));
return _il_rd(il, HBUS_TARG_PRPH_RDAT);
}
static inline void
_il_wr_prph(struct il_priv *il, u32 addr, u32 val)
{
_il_wr(il, HBUS_TARG_PRPH_WADDR, ((addr & 0x0000FFFF) | (3 << 24)));
_il_wr(il, HBUS_TARG_PRPH_WDAT, val);
}
static inline void
il_set_bits_prph(struct il_priv *il, u32 reg, u32 mask)
{
unsigned long reg_flags;
spin_lock_irqsave(&il->reg_lock, reg_flags);
if (likely(_il_grab_nic_access(il))) {
_il_wr_prph(il, reg, (_il_rd_prph(il, reg) | mask));
_il_release_nic_access(il);
}
spin_unlock_irqrestore(&il->reg_lock, reg_flags);
}
static inline void
il_set_bits_mask_prph(struct il_priv *il, u32 reg, u32 bits, u32 mask)
{
unsigned long reg_flags;
spin_lock_irqsave(&il->reg_lock, reg_flags);
if (likely(_il_grab_nic_access(il))) {
_il_wr_prph(il, reg, ((_il_rd_prph(il, reg) & mask) | bits));
_il_release_nic_access(il);
}
spin_unlock_irqrestore(&il->reg_lock, reg_flags);
}
static inline void
il_clear_bits_prph(struct il_priv *il, u32 reg, u32 mask)
{
unsigned long reg_flags;
u32 val;
spin_lock_irqsave(&il->reg_lock, reg_flags);
if (likely(_il_grab_nic_access(il))) {
val = _il_rd_prph(il, reg);
_il_wr_prph(il, reg, (val & ~mask));
_il_release_nic_access(il);
}
spin_unlock_irqrestore(&il->reg_lock, reg_flags);
}
#define HW_KEY_DYNAMIC 0
#define HW_KEY_DEFAULT 1
#define IL_STA_DRIVER_ACTIVE BIT(0) /* driver entry is active */
#define IL_STA_UCODE_ACTIVE BIT(1) /* ucode entry is active */
#define IL_STA_UCODE_INPROGRESS BIT(2) /* ucode entry is in process of
being activated */
#define IL_STA_LOCAL BIT(3) /* station state not directed by mac80211;
(this is for the IBSS BSSID stations) */
#define IL_STA_BCAST BIT(4) /* this station is the special bcast station */
void il_restore_stations(struct il_priv *il);
void il_clear_ucode_stations(struct il_priv *il);
void il_dealloc_bcast_stations(struct il_priv *il);
int il_get_free_ucode_key_idx(struct il_priv *il);
int il_send_add_sta(struct il_priv *il, struct il_addsta_cmd *sta, u8 flags);
int il_add_station_common(struct il_priv *il, const u8 *addr, bool is_ap,
struct ieee80211_sta *sta, u8 *sta_id_r);
int il_remove_station(struct il_priv *il, const u8 sta_id, const u8 * addr);
int il_mac_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
struct ieee80211_sta *sta);
u8 il_prep_station(struct il_priv *il, const u8 *addr, bool is_ap,
struct ieee80211_sta *sta);
int il_send_lq_cmd(struct il_priv *il, struct il_link_quality_cmd *lq,
u8 flags, bool init);
/**
* il_clear_driver_stations - clear knowledge of all stations from driver
* @il: iwl il struct
*
* This is called during il_down() to make sure that in the case
* we're coming there from a hardware restart mac80211 will be
* able to reconfigure stations -- if we're getting there in the
* normal down flow then the stations will already be cleared.
*/
static inline void
il_clear_driver_stations(struct il_priv *il)
{
unsigned long flags;
spin_lock_irqsave(&il->sta_lock, flags);
memset(il->stations, 0, sizeof(il->stations));
il->num_stations = 0;
il->ucode_key_table = 0;
spin_unlock_irqrestore(&il->sta_lock, flags);
}
static inline int
il_sta_id(struct ieee80211_sta *sta)
{
if (WARN_ON(!sta))
return IL_INVALID_STATION;
return ((struct il_station_priv_common *)sta->drv_priv)->sta_id;
}
/**
* il_sta_id_or_broadcast - return sta_id or broadcast sta
* @il: iwl il
* @context: the current context
* @sta: mac80211 station
*
* In certain circumstances mac80211 passes a station pointer
* that may be %NULL, for example during TX or key setup. In
* that case, we need to use the broadcast station, so this
* inline wraps that pattern.
*/
static inline int
il_sta_id_or_broadcast(struct il_priv *il, struct ieee80211_sta *sta)
{
int sta_id;
if (!sta)
return il->hw_params.bcast_id;
sta_id = il_sta_id(sta);
/*
* mac80211 should not be passing a partially
* initialised station!
*/
WARN_ON(sta_id == IL_INVALID_STATION);
return sta_id;
}
/**
* il_queue_inc_wrap - increment queue idx, wrap back to beginning
* @idx -- current idx
* @n_bd -- total number of entries in queue (must be power of 2)
*/
static inline int
il_queue_inc_wrap(int idx, int n_bd)
{
return ++idx & (n_bd - 1);
}
/**
* il_queue_dec_wrap - decrement queue idx, wrap back to end
* @idx -- current idx
* @n_bd -- total number of entries in queue (must be power of 2)
*/
static inline int
il_queue_dec_wrap(int idx, int n_bd)
{
return --idx & (n_bd - 1);
}
/* TODO: Move fw_desc functions to iwl-pci.ko */
static inline void
il_free_fw_desc(struct pci_dev *pci_dev, struct fw_desc *desc)
{
if (desc->v_addr)
dma_free_coherent(&pci_dev->dev, desc->len, desc->v_addr,
desc->p_addr);
desc->v_addr = NULL;
desc->len = 0;
}
static inline int
il_alloc_fw_desc(struct pci_dev *pci_dev, struct fw_desc *desc)
{
if (!desc->len) {
desc->v_addr = NULL;
return -EINVAL;
}
desc->v_addr = dma_alloc_coherent(&pci_dev->dev, desc->len,
&desc->p_addr, GFP_KERNEL);
return (desc->v_addr != NULL) ? 0 : -ENOMEM;
}
/*
* we have 8 bits used like this:
*
* 7 6 5 4 3 2 1 0
* | | | | | | | |
* | | | | | | +-+-------- AC queue (0-3)
* | | | | | |
* | +-+-+-+-+------------ HW queue ID
* |
* +---------------------- unused
*/
static inline void
il_set_swq_id(struct il_tx_queue *txq, u8 ac, u8 hwq)
{
BUG_ON(ac > 3); /* only have 2 bits */
BUG_ON(hwq > 31); /* only use 5 bits */
txq->swq_id = (hwq << 2) | ac;
}
static inline void
_il_wake_queue(struct il_priv *il, u8 ac)
{
if (atomic_dec_return(&il->queue_stop_count[ac]) <= 0)
ieee80211_wake_queue(il->hw, ac);
}
static inline void
_il_stop_queue(struct il_priv *il, u8 ac)
{
if (atomic_inc_return(&il->queue_stop_count[ac]) > 0)
ieee80211_stop_queue(il->hw, ac);
}
static inline void
il_wake_queue(struct il_priv *il, struct il_tx_queue *txq)
{
u8 queue = txq->swq_id;
u8 ac = queue & 3;
u8 hwq = (queue >> 2) & 0x1f;
if (test_and_clear_bit(hwq, il->queue_stopped))
_il_wake_queue(il, ac);
}
static inline void
il_stop_queue(struct il_priv *il, struct il_tx_queue *txq)
{
u8 queue = txq->swq_id;
u8 ac = queue & 3;
u8 hwq = (queue >> 2) & 0x1f;
if (!test_and_set_bit(hwq, il->queue_stopped))
_il_stop_queue(il, ac);
}
static inline void
il_wake_queues_by_reason(struct il_priv *il, int reason)
{
u8 ac;
if (test_and_clear_bit(reason, &il->stop_reason))
for (ac = 0; ac < 4; ac++)
_il_wake_queue(il, ac);
}
static inline void
il_stop_queues_by_reason(struct il_priv *il, int reason)
{
u8 ac;
if (!test_and_set_bit(reason, &il->stop_reason))
for (ac = 0; ac < 4; ac++)
_il_stop_queue(il, ac);
}
#ifdef ieee80211_stop_queue
#undef ieee80211_stop_queue
#endif
#define ieee80211_stop_queue DO_NOT_USE_ieee80211_stop_queue
#ifdef ieee80211_wake_queue
#undef ieee80211_wake_queue
#endif
#define ieee80211_wake_queue DO_NOT_USE_ieee80211_wake_queue
static inline void
il_disable_interrupts(struct il_priv *il)
{
clear_bit(S_INT_ENABLED, &il->status);
/* disable interrupts from uCode/NIC to host */
_il_wr(il, CSR_INT_MASK, 0x00000000);
/* acknowledge/clear/reset any interrupts still pending
* from uCode or flow handler (Rx/Tx DMA) */
_il_wr(il, CSR_INT, 0xffffffff);
_il_wr(il, CSR_FH_INT_STATUS, 0xffffffff);
}
static inline void
il_enable_rfkill_int(struct il_priv *il)
{
_il_wr(il, CSR_INT_MASK, CSR_INT_BIT_RF_KILL);
}
static inline void
il_enable_interrupts(struct il_priv *il)
{
set_bit(S_INT_ENABLED, &il->status);
_il_wr(il, CSR_INT_MASK, il->inta_mask);
}
/**
* il_beacon_time_mask_low - mask of lower 32 bit of beacon time
* @il -- pointer to il_priv data structure
* @tsf_bits -- number of bits need to shift for masking)
*/
static inline u32
il_beacon_time_mask_low(struct il_priv *il, u16 tsf_bits)
{
return (1 << tsf_bits) - 1;
}
/**
* il_beacon_time_mask_high - mask of higher 32 bit of beacon time
* @il -- pointer to il_priv data structure
* @tsf_bits -- number of bits need to shift for masking)
*/
static inline u32
il_beacon_time_mask_high(struct il_priv *il, u16 tsf_bits)
{
return ((1 << (32 - tsf_bits)) - 1) << tsf_bits;
}
/**
* struct il_rb_status - reseve buffer status host memory mapped FH registers
*
* @closed_rb_num [0:11] - Indicates the idx of the RB which was closed
* @closed_fr_num [0:11] - Indicates the idx of the RX Frame which was closed
* @finished_rb_num [0:11] - Indicates the idx of the current RB
* in which the last frame was written to
* @finished_fr_num [0:11] - Indicates the idx of the RX Frame
* which was transferred
*/
struct il_rb_status {
__le16 closed_rb_num;
__le16 closed_fr_num;
__le16 finished_rb_num;
__le16 finished_fr_nam;
__le32 __unused; /* 3945 only */
} __packed;
#define TFD_QUEUE_SIZE_MAX 256
#define TFD_QUEUE_SIZE_BC_DUP 64
#define TFD_QUEUE_BC_SIZE (TFD_QUEUE_SIZE_MAX + TFD_QUEUE_SIZE_BC_DUP)
#define IL_TX_DMA_MASK DMA_BIT_MASK(36)
#define IL_NUM_OF_TBS 20
static inline u8
il_get_dma_hi_addr(dma_addr_t addr)
{
return (sizeof(addr) > sizeof(u32) ? (addr >> 16) >> 16 : 0) & 0xF;
}
/**
* struct il_tfd_tb transmit buffer descriptor within transmit frame descriptor
*
* This structure contains dma address and length of transmission address
*
* @lo: low [31:0] portion of the dma address of TX buffer every even is
* unaligned on 16 bit boundary
* @hi_n_len: 0-3 [35:32] portion of dma
* 4-15 length of the tx buffer
*/
struct il_tfd_tb {
__le32 lo;
__le16 hi_n_len;
} __packed;
/**
* struct il_tfd
*
* Transmit Frame Descriptor (TFD)
*
* @ __reserved1[3] reserved
* @ num_tbs 0-4 number of active tbs
* 5 reserved
* 6-7 padding (not used)
* @ tbs[20] transmit frame buffer descriptors
* @ __pad padding
*
* Each Tx queue uses a circular buffer of 256 TFDs stored in host DRAM.
* Both driver and device share these circular buffers, each of which must be
* contiguous 256 TFDs x 128 bytes-per-TFD = 32 KBytes
*
* Driver must indicate the physical address of the base of each
* circular buffer via the FH49_MEM_CBBC_QUEUE registers.
*
* Each TFD contains pointer/size information for up to 20 data buffers
* in host DRAM. These buffers collectively contain the (one) frame described
* by the TFD. Each buffer must be a single contiguous block of memory within
* itself, but buffers may be scattered in host DRAM. Each buffer has max size
* of (4K - 4). The concatenates all of a TFD's buffers into a single
* Tx frame, up to 8 KBytes in size.
*
* A maximum of 255 (not 256!) TFDs may be on a queue waiting for Tx.
*/
struct il_tfd {
u8 __reserved1[3];
u8 num_tbs;
struct il_tfd_tb tbs[IL_NUM_OF_TBS];
__le32 __pad;
} __packed;
/* PCI registers */
#define PCI_CFG_RETRY_TIMEOUT 0x041
struct il_rate_info {
u8 plcp; /* uCode API: RATE_6M_PLCP, etc. */
u8 plcp_siso; /* uCode API: RATE_SISO_6M_PLCP, etc. */
u8 plcp_mimo2; /* uCode API: RATE_MIMO2_6M_PLCP, etc. */
u8 ieee; /* MAC header: RATE_6M_IEEE, etc. */
u8 prev_ieee; /* previous rate in IEEE speeds */
u8 next_ieee; /* next rate in IEEE speeds */
u8 prev_rs; /* previous rate used in rs algo */
u8 next_rs; /* next rate used in rs algo */
u8 prev_rs_tgg; /* previous rate used in TGG rs algo */
u8 next_rs_tgg; /* next rate used in TGG rs algo */
};
struct il3945_rate_info {
u8 plcp; /* uCode API: RATE_6M_PLCP, etc. */
u8 ieee; /* MAC header: RATE_6M_IEEE, etc. */
u8 prev_ieee; /* previous rate in IEEE speeds */
u8 next_ieee; /* next rate in IEEE speeds */
u8 prev_rs; /* previous rate used in rs algo */
u8 next_rs; /* next rate used in rs algo */
u8 prev_rs_tgg; /* previous rate used in TGG rs algo */
u8 next_rs_tgg; /* next rate used in TGG rs algo */
u8 table_rs_idx; /* idx in rate scale table cmd */
u8 prev_table_rs; /* prev in rate table cmd */
};
/*
* These serve as idxes into
* struct il_rate_info il_rates[RATE_COUNT];
*/
enum {
RATE_1M_IDX = 0,
RATE_2M_IDX,
RATE_5M_IDX,
RATE_11M_IDX,
RATE_6M_IDX,
RATE_9M_IDX,
RATE_12M_IDX,
RATE_18M_IDX,
RATE_24M_IDX,
RATE_36M_IDX,
RATE_48M_IDX,
RATE_54M_IDX,
RATE_60M_IDX,
RATE_COUNT,
RATE_COUNT_LEGACY = RATE_COUNT - 1, /* Excluding 60M */
RATE_COUNT_3945 = RATE_COUNT - 1,
RATE_INVM_IDX = RATE_COUNT,
RATE_INVALID = RATE_COUNT,
};
enum {
RATE_6M_IDX_TBL = 0,
RATE_9M_IDX_TBL,
RATE_12M_IDX_TBL,
RATE_18M_IDX_TBL,
RATE_24M_IDX_TBL,
RATE_36M_IDX_TBL,
RATE_48M_IDX_TBL,
RATE_54M_IDX_TBL,
RATE_1M_IDX_TBL,
RATE_2M_IDX_TBL,
RATE_5M_IDX_TBL,
RATE_11M_IDX_TBL,
RATE_INVM_IDX_TBL = RATE_INVM_IDX - 1,
};
enum {
IL_FIRST_OFDM_RATE = RATE_6M_IDX,
IL39_LAST_OFDM_RATE = RATE_54M_IDX,
IL_LAST_OFDM_RATE = RATE_60M_IDX,
IL_FIRST_CCK_RATE = RATE_1M_IDX,
IL_LAST_CCK_RATE = RATE_11M_IDX,
};
/* #define vs. enum to keep from defaulting to 'large integer' */
#define RATE_6M_MASK (1 << RATE_6M_IDX)
#define RATE_9M_MASK (1 << RATE_9M_IDX)
#define RATE_12M_MASK (1 << RATE_12M_IDX)
#define RATE_18M_MASK (1 << RATE_18M_IDX)
#define RATE_24M_MASK (1 << RATE_24M_IDX)
#define RATE_36M_MASK (1 << RATE_36M_IDX)
#define RATE_48M_MASK (1 << RATE_48M_IDX)
#define RATE_54M_MASK (1 << RATE_54M_IDX)
#define RATE_60M_MASK (1 << RATE_60M_IDX)
#define RATE_1M_MASK (1 << RATE_1M_IDX)
#define RATE_2M_MASK (1 << RATE_2M_IDX)
#define RATE_5M_MASK (1 << RATE_5M_IDX)
#define RATE_11M_MASK (1 << RATE_11M_IDX)
/* uCode API values for legacy bit rates, both OFDM and CCK */
enum {
RATE_6M_PLCP = 13,
RATE_9M_PLCP = 15,
RATE_12M_PLCP = 5,
RATE_18M_PLCP = 7,
RATE_24M_PLCP = 9,
RATE_36M_PLCP = 11,
RATE_48M_PLCP = 1,
RATE_54M_PLCP = 3,
RATE_60M_PLCP = 3, /*FIXME:RS:should be removed */
RATE_1M_PLCP = 10,
RATE_2M_PLCP = 20,
RATE_5M_PLCP = 55,
RATE_11M_PLCP = 110,
/*FIXME:RS:add RATE_LEGACY_INVM_PLCP = 0, */
};
/* uCode API values for OFDM high-throughput (HT) bit rates */
enum {
RATE_SISO_6M_PLCP = 0,
RATE_SISO_12M_PLCP = 1,
RATE_SISO_18M_PLCP = 2,
RATE_SISO_24M_PLCP = 3,
RATE_SISO_36M_PLCP = 4,
RATE_SISO_48M_PLCP = 5,
RATE_SISO_54M_PLCP = 6,
RATE_SISO_60M_PLCP = 7,
RATE_MIMO2_6M_PLCP = 0x8,
RATE_MIMO2_12M_PLCP = 0x9,
RATE_MIMO2_18M_PLCP = 0xa,
RATE_MIMO2_24M_PLCP = 0xb,
RATE_MIMO2_36M_PLCP = 0xc,
RATE_MIMO2_48M_PLCP = 0xd,
RATE_MIMO2_54M_PLCP = 0xe,
RATE_MIMO2_60M_PLCP = 0xf,
RATE_SISO_INVM_PLCP,
RATE_MIMO2_INVM_PLCP = RATE_SISO_INVM_PLCP,
};
/* MAC header values for bit rates */
enum {
RATE_6M_IEEE = 12,
RATE_9M_IEEE = 18,
RATE_12M_IEEE = 24,
RATE_18M_IEEE = 36,
RATE_24M_IEEE = 48,
RATE_36M_IEEE = 72,
RATE_48M_IEEE = 96,
RATE_54M_IEEE = 108,
RATE_60M_IEEE = 120,
RATE_1M_IEEE = 2,
RATE_2M_IEEE = 4,
RATE_5M_IEEE = 11,
RATE_11M_IEEE = 22,
};
#define IL_CCK_BASIC_RATES_MASK \
(RATE_1M_MASK | \
RATE_2M_MASK)
#define IL_CCK_RATES_MASK \
(IL_CCK_BASIC_RATES_MASK | \
RATE_5M_MASK | \
RATE_11M_MASK)
#define IL_OFDM_BASIC_RATES_MASK \
(RATE_6M_MASK | \
RATE_12M_MASK | \
RATE_24M_MASK)
#define IL_OFDM_RATES_MASK \
(IL_OFDM_BASIC_RATES_MASK | \
RATE_9M_MASK | \
RATE_18M_MASK | \
RATE_36M_MASK | \
RATE_48M_MASK | \
RATE_54M_MASK)
#define IL_BASIC_RATES_MASK \
(IL_OFDM_BASIC_RATES_MASK | \
IL_CCK_BASIC_RATES_MASK)
#define RATES_MASK ((1 << RATE_COUNT) - 1)
#define RATES_MASK_3945 ((1 << RATE_COUNT_3945) - 1)
#define IL_INVALID_VALUE -1
#define IL_MIN_RSSI_VAL -100
#define IL_MAX_RSSI_VAL 0
/* These values specify how many Tx frame attempts before
* searching for a new modulation mode */
#define IL_LEGACY_FAILURE_LIMIT 160
#define IL_LEGACY_SUCCESS_LIMIT 480
#define IL_LEGACY_TBL_COUNT 160
#define IL_NONE_LEGACY_FAILURE_LIMIT 400
#define IL_NONE_LEGACY_SUCCESS_LIMIT 4500
#define IL_NONE_LEGACY_TBL_COUNT 1500
/* Success ratio (ACKed / attempted tx frames) values (perfect is 128 * 100) */
#define IL_RS_GOOD_RATIO 12800 /* 100% */
#define RATE_SCALE_SWITCH 10880 /* 85% */
#define RATE_HIGH_TH 10880 /* 85% */
#define RATE_INCREASE_TH 6400 /* 50% */
#define RATE_DECREASE_TH 1920 /* 15% */
/* possible actions when in legacy mode */
#define IL_LEGACY_SWITCH_ANTENNA1 0
#define IL_LEGACY_SWITCH_ANTENNA2 1
#define IL_LEGACY_SWITCH_SISO 2
#define IL_LEGACY_SWITCH_MIMO2_AB 3
#define IL_LEGACY_SWITCH_MIMO2_AC 4
#define IL_LEGACY_SWITCH_MIMO2_BC 5
/* possible actions when in siso mode */
#define IL_SISO_SWITCH_ANTENNA1 0
#define IL_SISO_SWITCH_ANTENNA2 1
#define IL_SISO_SWITCH_MIMO2_AB 2
#define IL_SISO_SWITCH_MIMO2_AC 3
#define IL_SISO_SWITCH_MIMO2_BC 4
#define IL_SISO_SWITCH_GI 5
/* possible actions when in mimo mode */
#define IL_MIMO2_SWITCH_ANTENNA1 0
#define IL_MIMO2_SWITCH_ANTENNA2 1
#define IL_MIMO2_SWITCH_SISO_A 2
#define IL_MIMO2_SWITCH_SISO_B 3
#define IL_MIMO2_SWITCH_SISO_C 4
#define IL_MIMO2_SWITCH_GI 5
#define IL_MAX_SEARCH IL_MIMO2_SWITCH_GI
#define IL_ACTION_LIMIT 3 /* # possible actions */
#define LQ_SIZE 2 /* 2 mode tables: "Active" and "Search" */
/* load per tid defines for A-MPDU activation */
#define IL_AGG_TPT_THREHOLD 0
#define IL_AGG_LOAD_THRESHOLD 10
#define IL_AGG_ALL_TID 0xff
#define TID_QUEUE_CELL_SPACING 50 /*mS */
#define TID_QUEUE_MAX_SIZE 20
#define TID_ROUND_VALUE 5 /* mS */
#define TID_MAX_LOAD_COUNT 8
#define TID_MAX_TIME_DIFF ((TID_QUEUE_MAX_SIZE - 1) * TID_QUEUE_CELL_SPACING)
#define TIME_WRAP_AROUND(x, y) (((y) > (x)) ? (y) - (x) : (0-(x)) + (y))
extern const struct il_rate_info il_rates[RATE_COUNT];
enum il_table_type {
LQ_NONE,
LQ_G, /* legacy types */
LQ_A,
LQ_SISO, /* high-throughput types */
LQ_MIMO2,
LQ_MAX,
};
#define is_legacy(tbl) ((tbl) == LQ_G || (tbl) == LQ_A)
#define is_siso(tbl) ((tbl) == LQ_SISO)
#define is_mimo2(tbl) ((tbl) == LQ_MIMO2)
#define is_mimo(tbl) (is_mimo2(tbl))
#define is_Ht(tbl) (is_siso(tbl) || is_mimo(tbl))
#define is_a_band(tbl) ((tbl) == LQ_A)
#define is_g_and(tbl) ((tbl) == LQ_G)
#define ANT_NONE 0x0
#define ANT_A BIT(0)
#define ANT_B BIT(1)
#define ANT_AB (ANT_A | ANT_B)
#define ANT_C BIT(2)
#define ANT_AC (ANT_A | ANT_C)
#define ANT_BC (ANT_B | ANT_C)
#define ANT_ABC (ANT_AB | ANT_C)
#define IL_MAX_MCS_DISPLAY_SIZE 12
struct il_rate_mcs_info {
char mbps[IL_MAX_MCS_DISPLAY_SIZE];
char mcs[IL_MAX_MCS_DISPLAY_SIZE];
};
/**
* struct il_rate_scale_data -- tx success history for one rate
*/
struct il_rate_scale_data {
u64 data; /* bitmap of successful frames */
s32 success_counter; /* number of frames successful */
s32 success_ratio; /* per-cent * 128 */
s32 counter; /* number of frames attempted */
s32 average_tpt; /* success ratio * expected throughput */
unsigned long stamp;
};
/**
* struct il_scale_tbl_info -- tx params and success history for all rates
*
* There are two of these in struct il_lq_sta,
* one for "active", and one for "search".
*/
struct il_scale_tbl_info {
enum il_table_type lq_type;
u8 ant_type;
u8 is_SGI; /* 1 = short guard interval */
u8 is_ht40; /* 1 = 40 MHz channel width */
u8 is_dup; /* 1 = duplicated data streams */
u8 action; /* change modulation; IL_[LEGACY/SISO/MIMO]_SWITCH_* */
u8 max_search; /* maximun number of tables we can search */
s32 *expected_tpt; /* throughput metrics; expected_tpt_G, etc. */
u32 current_rate; /* rate_n_flags, uCode API format */
struct il_rate_scale_data win[RATE_COUNT]; /* rate histories */
};
struct il_traffic_load {
unsigned long time_stamp; /* age of the oldest stats */
u32 packet_count[TID_QUEUE_MAX_SIZE]; /* packet count in this time
* slice */
u32 total; /* total num of packets during the
* last TID_MAX_TIME_DIFF */
u8 queue_count; /* number of queues that has
* been used since the last cleanup */
u8 head; /* start of the circular buffer */
};
/**
* struct il_lq_sta -- driver's rate scaling ilate structure
*
* Pointer to this gets passed back and forth between driver and mac80211.
*/
struct il_lq_sta {
u8 active_tbl; /* idx of active table, range 0-1 */
u8 enable_counter; /* indicates HT mode */
u8 stay_in_tbl; /* 1: disallow, 0: allow search for new mode */
u8 search_better_tbl; /* 1: currently trying alternate mode */
s32 last_tpt;
/* The following determine when to search for a new mode */
u32 table_count_limit;
u32 max_failure_limit; /* # failed frames before new search */
u32 max_success_limit; /* # successful frames before new search */
u32 table_count;
u32 total_failed; /* total failed frames, any/all rates */
u32 total_success; /* total successful frames, any/all rates */
u64 flush_timer; /* time staying in mode before new search */
u8 action_counter; /* # mode-switch actions tried */
u8 is_green;
u8 is_dup;
enum ieee80211_band band;
/* The following are bitmaps of rates; RATE_6M_MASK, etc. */
u32 supp_rates;
u16 active_legacy_rate;
u16 active_siso_rate;
u16 active_mimo2_rate;
s8 max_rate_idx; /* Max rate set by user */
u8 missed_rate_counter;
struct il_link_quality_cmd lq;
struct il_scale_tbl_info lq_info[LQ_SIZE]; /* "active", "search" */
struct il_traffic_load load[TID_MAX_LOAD_COUNT];
u8 tx_agg_tid_en;
#ifdef CONFIG_MAC80211_DEBUGFS
struct dentry *rs_sta_dbgfs_scale_table_file;
struct dentry *rs_sta_dbgfs_stats_table_file;
struct dentry *rs_sta_dbgfs_rate_scale_data_file;
struct dentry *rs_sta_dbgfs_tx_agg_tid_en_file;
u32 dbg_fixed_rate;
#endif
struct il_priv *drv;
/* used to be in sta_info */
int last_txrate_idx;
/* last tx rate_n_flags */
u32 last_rate_n_flags;
/* packets destined for this STA are aggregated */
u8 is_agg;
};
/*
* il_station_priv: Driver's ilate 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 4965!
*/
struct il_station_priv {
struct il_station_priv_common common;
struct il_lq_sta lq_sta;
atomic_t pending_frames;
bool client;
bool asleep;
};
static inline u8
il4965_num_of_ant(u8 m)
{
return !!(m & ANT_A) + !!(m & ANT_B) + !!(m & ANT_C);
}
static inline u8
il4965_first_antenna(u8 mask)
{
if (mask & ANT_A)
return ANT_A;
if (mask & ANT_B)
return ANT_B;
return ANT_C;
}
/**
* il3945_rate_scale_init - Initialize the rate scale table based on assoc info
*
* The specific throughput table used is based on the type of network
* the associated with, including A, B, G, and G w/ TGG protection
*/
void il3945_rate_scale_init(struct ieee80211_hw *hw, s32 sta_id);
/* Initialize station's rate scaling information after adding station */
void il4965_rs_rate_init(struct il_priv *il, struct ieee80211_sta *sta,
u8 sta_id);
void il3945_rs_rate_init(struct il_priv *il, struct ieee80211_sta *sta,
u8 sta_id);
/**
* il_rate_control_register - Register the rate control algorithm callbacks
*
* Since the rate control algorithm is hardware specific, there is no need
* or reason to place it as a stand alone module. The driver can call
* il_rate_control_register in order to register the rate control callbacks
* with the mac80211 subsystem. This should be performed prior to calling
* ieee80211_register_hw
*
*/
int il4965_rate_control_register(void);
int il3945_rate_control_register(void);
/**
* il_rate_control_unregister - Unregister the rate control callbacks
*
* This should be called after calling ieee80211_unregister_hw, but before
* the driver is unloaded.
*/
void il4965_rate_control_unregister(void);
void il3945_rate_control_unregister(void);
int il_power_update_mode(struct il_priv *il, bool force);
void il_power_initialize(struct il_priv *il);
extern u32 il_debug_level;
#ifdef CONFIG_IWLEGACY_DEBUG
/*
* il_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
il_get_debug_level(struct il_priv *il)
{
if (il->debug_level)
return il->debug_level;
else
return il_debug_level;
}
#else
static inline u32
il_get_debug_level(struct il_priv *il)
{
return il_debug_level;
}
#endif
#define il_print_hex_error(il, p, len) \
do { \
print_hex_dump(KERN_ERR, "iwl data: ", \
DUMP_PREFIX_OFFSET, 16, 1, p, len, 1); \
} while (0)
#ifdef CONFIG_IWLEGACY_DEBUG
#define IL_DBG(level, fmt, args...) \
do { \
if (il_get_debug_level(il) & level) \
dev_err(&il->hw->wiphy->dev, "%c %s " fmt, \
in_interrupt() ? 'I' : 'U', __func__ , ##args); \
} while (0)
#define il_print_hex_dump(il, level, p, len) \
do { \
if (il_get_debug_level(il) & level) \
print_hex_dump(KERN_DEBUG, "iwl data: ", \
DUMP_PREFIX_OFFSET, 16, 1, p, len, 1); \
} while (0)
#else
#define IL_DBG(level, fmt, args...)
static inline void
il_print_hex_dump(struct il_priv *il, int level, const void *p, u32 len)
{
}
#endif /* CONFIG_IWLEGACY_DEBUG */
#ifdef CONFIG_IWLEGACY_DEBUGFS
int il_dbgfs_register(struct il_priv *il, const char *name);
void il_dbgfs_unregister(struct il_priv *il);
#else
static inline int
il_dbgfs_register(struct il_priv *il, const char *name)
{
return 0;
}
static inline void
il_dbgfs_unregister(struct il_priv *il)
{
}
#endif /* CONFIG_IWLEGACY_DEBUGFS */
/*
* To use the debug system:
*
* If you are defining a new debug classification, simply add it to the #define
* list here in the form of
*
* #define IL_DL_xxxx VALUE
*
* where xxxx should be the name of the classification (for example, WEP).
*
* You then need to either add a IL_xxxx_DEBUG() macro definition for your
* classification, or use IL_DBG(IL_DL_xxxx, ...) whenever you want
* to send output to that classification.
*
* The active debug levels can be accessed via files
*
* /sys/module/iwl4965/parameters/debug
* /sys/module/iwl3945/parameters/debug
* /sys/class/net/wlan0/device/debug_level
*
* when CONFIG_IWLEGACY_DEBUG=y.
*/
/* 0x0000000F - 0x00000001 */
#define IL_DL_INFO (1 << 0)
#define IL_DL_MAC80211 (1 << 1)
#define IL_DL_HCMD (1 << 2)
#define IL_DL_STATE (1 << 3)
/* 0x000000F0 - 0x00000010 */
#define IL_DL_MACDUMP (1 << 4)
#define IL_DL_HCMD_DUMP (1 << 5)
#define IL_DL_EEPROM (1 << 6)
#define IL_DL_RADIO (1 << 7)
/* 0x00000F00 - 0x00000100 */
#define IL_DL_POWER (1 << 8)
#define IL_DL_TEMP (1 << 9)
#define IL_DL_NOTIF (1 << 10)
#define IL_DL_SCAN (1 << 11)
/* 0x0000F000 - 0x00001000 */
#define IL_DL_ASSOC (1 << 12)
#define IL_DL_DROP (1 << 13)
#define IL_DL_TXPOWER (1 << 14)
#define IL_DL_AP (1 << 15)
/* 0x000F0000 - 0x00010000 */
#define IL_DL_FW (1 << 16)
#define IL_DL_RF_KILL (1 << 17)
#define IL_DL_FW_ERRORS (1 << 18)
#define IL_DL_LED (1 << 19)
/* 0x00F00000 - 0x00100000 */
#define IL_DL_RATE (1 << 20)
#define IL_DL_CALIB (1 << 21)
#define IL_DL_WEP (1 << 22)
#define IL_DL_TX (1 << 23)
/* 0x0F000000 - 0x01000000 */
#define IL_DL_RX (1 << 24)
#define IL_DL_ISR (1 << 25)
#define IL_DL_HT (1 << 26)
/* 0xF0000000 - 0x10000000 */
#define IL_DL_11H (1 << 28)
#define IL_DL_STATS (1 << 29)
#define IL_DL_TX_REPLY (1 << 30)
#define IL_DL_QOS (1 << 31)
#define D_INFO(f, a...) IL_DBG(IL_DL_INFO, f, ## a)
#define D_MAC80211(f, a...) IL_DBG(IL_DL_MAC80211, f, ## a)
#define D_MACDUMP(f, a...) IL_DBG(IL_DL_MACDUMP, f, ## a)
#define D_TEMP(f, a...) IL_DBG(IL_DL_TEMP, f, ## a)
#define D_SCAN(f, a...) IL_DBG(IL_DL_SCAN, f, ## a)
#define D_RX(f, a...) IL_DBG(IL_DL_RX, f, ## a)
#define D_TX(f, a...) IL_DBG(IL_DL_TX, f, ## a)
#define D_ISR(f, a...) IL_DBG(IL_DL_ISR, f, ## a)
#define D_LED(f, a...) IL_DBG(IL_DL_LED, f, ## a)
#define D_WEP(f, a...) IL_DBG(IL_DL_WEP, f, ## a)
#define D_HC(f, a...) IL_DBG(IL_DL_HCMD, f, ## a)
#define D_HC_DUMP(f, a...) IL_DBG(IL_DL_HCMD_DUMP, f, ## a)
#define D_EEPROM(f, a...) IL_DBG(IL_DL_EEPROM, f, ## a)
#define D_CALIB(f, a...) IL_DBG(IL_DL_CALIB, f, ## a)
#define D_FW(f, a...) IL_DBG(IL_DL_FW, f, ## a)
#define D_RF_KILL(f, a...) IL_DBG(IL_DL_RF_KILL, f, ## a)
#define D_DROP(f, a...) IL_DBG(IL_DL_DROP, f, ## a)
#define D_AP(f, a...) IL_DBG(IL_DL_AP, f, ## a)
#define D_TXPOWER(f, a...) IL_DBG(IL_DL_TXPOWER, f, ## a)
#define D_RATE(f, a...) IL_DBG(IL_DL_RATE, f, ## a)
#define D_NOTIF(f, a...) IL_DBG(IL_DL_NOTIF, f, ## a)
#define D_ASSOC(f, a...) IL_DBG(IL_DL_ASSOC, f, ## a)
#define D_HT(f, a...) IL_DBG(IL_DL_HT, f, ## a)
#define D_STATS(f, a...) IL_DBG(IL_DL_STATS, f, ## a)
#define D_TX_REPLY(f, a...) IL_DBG(IL_DL_TX_REPLY, f, ## a)
#define D_QOS(f, a...) IL_DBG(IL_DL_QOS, f, ## a)
#define D_RADIO(f, a...) IL_DBG(IL_DL_RADIO, f, ## a)
#define D_POWER(f, a...) IL_DBG(IL_DL_POWER, f, ## a)
#define D_11H(f, a...) IL_DBG(IL_DL_11H, f, ## a)
#endif /* __il_core_h__ */
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